Difference between pages "Wind Energy" and "Femtocells"

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This report presents a brief introduction to wind energy and technologies available for horizontal wind turbines. A detailed taxonomy for horizontal axis wind turbines is presented covering parts of the turbine, control systems, applications among others. A detailed landscape analysis of patent and non-patent literature is done with a focus on Doubly-fed Induction Generators (DFIG) used in the horizontal axis wind turbines for efficient power generation. The product information of major players in the market is also captured for Doubly-fed Induction Generators. The final section of the report covers the existing and future market predictions for wind energy-based power generation.
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This report presents a brief summary about femtocells and also focuses on its various applications. A detailed taxonomy is presented which covers all the aspects related to femtocells. A detailed landscape analysis of patent and non-patent literature is done. The product information of major players in the market is also captured. The final section of the report also covers the existing and future market predictions.  
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[[Image:Wind_Energy.JPG|right|600px|thumb|Wind Energy]]
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=Introduction=
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'''Dolcera Landscape Procedure'''
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* We have been using wind power at least since 5000 BC to propel sailboats and sailing ships, and architects have used wind-driven natural ventilation in buildings since similarly ancient times. The use of wind to provide mechanical power came later.
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* Background study - Background study is done with web search depending on the area of client interest.
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* Harnessing renewable alternative energy is the ideal way to tackle the energy crisis, with due consideration given to environmental pollution, that looms large over the world.
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* Finding key player/inventors - Web search is carried out to find the products and technologies of key players.
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* Patents Search -
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** Key patents search.
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** Prepared search queries using keywords and classification and finalized these in Micropat/Thompson.
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* Patents Classification - Classify all patents by creating taxonomy.
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* Specific analysis as required by client like SWOT, SOA, PEST, Claim, and White Space analysis.
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* Reporting -  
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** All necessary data are presented in format of wiki or in form of power point slides.  
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** Dashboard - Graphical representation of Patents classification.
  
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* Renewable energy is also called "clean energy" or "green power" because it doesn’t pollute the air or the water. Wind energy is one such renewable energy source that harnesses natural wind power.<br>
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'''Key Findings'''
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== Read More? ==
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* Qualcomm, Samsung and NEC are the major players in femtocells technology
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Click on '''[[Wind Energy Background]]''' to read more about wind energy.
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* Key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
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* Patenting activity has seen a very high growth rate in the last two years.  
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* US and WO are very active in femtocell technology research.
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[[Image:femtconcept.gif|thumb|1200px|right|[http://www.juniper.net/techpubs/software/aaa_802/imsaaa11/sw-imsaaa-admin/html/Overview3.html Femtocell Access to the Core Mobile Network via Broadband Internet]]]
  
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In order to overcome the problems associated with fixed speed wind turbine system and to maximize the wind energy capture, many new wind farms are employing variable speed wind energy conversion systems (WECS) with doubly-fed induction generator (DFIG). It is the most popular and widely used scheme for the wind generators due to its advantages.
 
  
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For variable-speed systems with limited variable-speed range, e.g. ±30% of synchronous speed, the doubly-fed induction generator(DFIG) can be an interesting solution. This is mainly due to the fact that the power electronic converter only has to handle a fraction (20-30%) of the total power as the converters are connected to the rotor and not to the stator. Therefore, the losses in the power electronic converter can be reduced, compared to a system where the converter has to handle the total power. The overall structure of wind power generation through DFIG as shown in the figure below.
 
  
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=Market Research=
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==Introduction==
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==The History of Wind Energy==
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A femtocell is a small cellular base station designed for use in residential or small business environments. It connects to the service provider’s network via broadband (such as DSL or cable) and typically supports 2 to 5 mobile phones in a residential setting. A femtocell allows service providers to extend service coverage inside of your home - especially where access would otherwise be limited or unavailable - without the need for expensive cellular towers. It also decreases the backhaul costs since it routes your mobile phone traffic through the IP network. [http://www.tatarasystems.com/contentmgr/showdetails.php/id/444 Source]
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A femtocell is sometimes referred to as a “home base station”, “access point base station”, “3G access point”, “small cellular base station” and “personal 2G-3G base station”.
  
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To read about '''[[the History of Wind Energy]]''', '''[http://dolcera.com/wiki/index.php?title=The_History_of_Wind_Energy click here]'''
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[[Image:Housefemtocell.jpg|thumb|1000px|centre|[http://www.femtoforum.org/femto/aboutfemtocells.php Femtocell]]]
  
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==Global Wind Energy Market==
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Femtocells are low-power wireless access points that operate in licensed spectrum to connect standard mobile devices to a mobile operator’s network using residential DSL or cable broadband connections.
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===Market Overview===
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===Read More?===
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* In the year 2010, the wind capacity reached worldwide '''196’630 Megawatt''', after '''159’050 MW''' in 2009, '''120’903 MW''' in 2008, and '''93’930 MW''' in 2007.
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Click on [[Femtocell Background]] to read more about Femtocell.
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[[Image:World_Installed.JPG|center|589*277px|thumb|Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* Wind power showed a growth rate of '''23.6 %''', the lowest growth since 2004 and the second lowest growth of the past decade.
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* For the first time in more than two decades, the market for new wind turbines was smaller than in the previous year and reached an overall size of '''37’642 MW''', after 38'312 MW in 2009.
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[[Image:New.JPG|center|589*277px|thumb|Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* All wind turbines installed by the end of 2010 worldwide can generate '''430 Tera watt hours per annum''', more than the total electricity demand of the United Kingdom, the sixth largest economy of the world, and equaling 2.5 % of the global electricity consumption.
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* In the year 2010, altogether '''83 countries''', one more than in 2009, used wind energy for electricity generation. 52 countries increased their total installed capacity, after 49 in the previous year.
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* The turnover of the wind sector worldwide reached '''40 billion Euros (55 billion US$) in 2010''', after 50 billion Euros (70 billion US$) in the year 2009. The decrease is due to lower prices for wind turbines and a shift towards China.
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* China became number one in total installed capacity and the center of the international wind industry, and added '''18’928 Megawatt''' within one year, accounting for more than 50 % of the world market for new wind turbines.
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* The wind sector in 2010 employed '''670’000 persons''' worldwide.
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* Nuclear disaster in Japan and oil spill in Gulf of Mexico will have long-term impact on the prospects of wind energy. Governments need to urgently reinforce their wind energy policies.
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* WWEA sees a global capacity of '''600’000 Megawatt''' as possible by the year 2015 and more than '''1’500’000 Megawatt''' by the year 2020.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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==Taxonomy==
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*''Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy''
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{|border="2" cellspacing="0" cellpadding="4" width="100%"
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|<mm>[[femtocell m.mm|title Femtocell|border]]</mm>
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|}
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'''Click [[femtocell taxonomy definition|here]] for femtocell taxonomy definition'''
  
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===Global Market Forecast===
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==Femtocell - Search Strategy==
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* Global Wind Energy Outlook 2010, provides forecast under  [http://dolcera.com/wiki/index.php?title=Forecast_Scenarios three different scenarios] - Reference, Moderate and Advanced.
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===Control Patents===
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* The Global Cumulative Wind Power Capacity is estimated to reach 572,733 MW by the year 2030, under the Reference Scenario
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Control patents are mostly used 
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* The Global Cumulative Wind Power Capacity is estimated to reach 1,777,550 MW by the year 2030, under the Moderate Scenario
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* to prepare concepts
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* The Global Cumulative Wind Power Capacity is estimated to reach 2,341,984 MW by the year 2030, under the Advanced Scenario
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* to search classes, and  
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* The following chart shows the Global Cumulative Wind Power Capacity Forecast,under the different scenarios:
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* to verify the search strategy
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[[Image:Global_Forecast.JPG|center|618*363px|thumb|Global Cumulative Wind Power Capacity Forecast, Source: [http://www.gwec.net/fileadmin/documents/Publications/GWEO%202010%20final.pdf Global Wind Energy Outlook 2010]]]
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Source: [http://www.gwec.net/fileadmin/documents/Publications/GWEO%202010%20final.pdf Global Wind Energy Outlook 2010]
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===Market Growth Rates===
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* The growth rate is the relation between the new installed wind power capacity and the installed capacity of the previous year.
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* With '''23.6 %''', the year 2010 showed the second lowest growth rate of the last decade.
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[[Image:World_Market_Growth Rates.JPG|center|594*345px|thumb|World Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* Before 2010, the annual growth rate had continued to increase since the year 2004, '''peaking in 2009 at 31.7%''', the highest rate since 2001.
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* The highest growth rates of the year 2010 by country can be found in '''Romania''', which increased its capacity by 40 times.
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* The second country with a growth rate of more than 100 % was '''Bulgaria (112%)'''.
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* In the year 2009, four major wind markets had more than doubled their wind capacity: '''China, Mexico, Turkey, and Morocco'''.
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* Next to China, strong growth could be found mainly in '''Eastern European and South Eastern European''' countries: Romania, Bulgaria, Turkey, Lithuania, Poland, Hungary, Croatia and Cyprus, and Belgium.
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* Africa (with the exception of Egypt and Morocco) and Latin America (with the exception of Brazil), are again lagging behind the rest of the world in the commercial use of wind power.
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* The Top 10 countries by Growth Rate are shown in the figure listed below (only markets bigger than 200 MW have been considered):
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[[Image:Top_Growth_Countries.JPG|center|606*428px|thumb|Top Countries by Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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==Geographical Market Distribution==
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* China became number one in total installed capacity and the center of the international wind industry, and added '''18'928 Megawatt''' within one year, accounting for more than 50 % of the world market for new wind turbines.
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* Major decrease in new installations can be observed in North America and the '''USA lost its number one position''' in total capacity to China.
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* Many Western European countries are showing stagnation, whereas there is strong growth in a number of Eastern European countries.
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* '''Germany''' keeps its number one position in Europe with '''27'215 Megawatt''', followed by Spain with 20'676 Megawatt.
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* The highest shares of wind power can be found in three European countries: '''Denmark (21.0%), Portugal (18.0 %) and Spain (16.0%)'''.
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* '''Asia''' accounted for the largest share of new installations '''(54.6%)''', followed by '''Europe (27.0%)''' and '''North America (16.7 %)'''.
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* '''Latin America (1.2%)''' and '''Africa (0.4%)''' still played only a marginal role in new installations.
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* Africa: North Africa represents still lion share of installed capacity, wind energy plays hardly a role yet in Sub-Sahara Africa.
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* Nuclear disaster in Japan and oil spill in Gulf of Mexico will have long-term impact on the prospects of wind energy. Governments need to urgently reinforce their wind energy policies.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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The regional breakdowns for the period 2009-2030 has been provided for the following three scenarios:
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;# [[Regional Breakdown: Reference scenario (GWEO 2010)]]
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;# [[Regional Breakdown: Moderate scenario (GWEO 2010)]]
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;# [[Regional Breakdown: Advanced scenario (GWEO 2010)]]
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''Note: To know more about the '''[[Forecast Scenarios]]''', [http://dolcera.com/wiki/index.php?title=Forecast_Scenarios click here]''
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==Country-wise Market Distribution==
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* In 2010, the Chinese wind market represented more than half of the world market for new wind turbines adding '''18.9 GW''', which equals a market share of '''50.3%'''.
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* A sharp decrease in new capacity happened in the USA whose share in new wind turbines fell down to '''14.9% (5.6 GW)''', after 25.9% or 9.9 GW in
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the year 2009.
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* '''Nine further countries''' could be seen as major markets, with turbine sales in a range '''between 0.5 and 1.5 GW''': Germany, Spain, India, United
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Kingdom, France, Italy, Canada, Sweden and the Eastern European newcomer Romania.
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* Further, '''12 markets''' for new turbines had a medium size '''between 100 and 500 MW''': Turkey, Poland, Portugal, Belgium, Brazil, Denmark, Japan, Bulgaria, Greece, Egypt, Ireland, and Mexico.
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* By end of 2010, '''20 countries''' had installations of '''more than 1 000 MW''', compared with 17 countries by end of 2009 and 11 countries byend of 2005.
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* Worldwide, '''39 countries''' had wind farms with '''a capacity of 100 Megawatt''' or more installed, compared with 35 countries one year ago, and 24 countries five years ago.
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* The top five countries (USA, China, Germany, Spain and India) represented '''74.2%''' of the worldwide wind capacity, significantly more than 72.9 % in the year.
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* The '''USA and China''' together represented '''43.2%''' of the global wind capacity (up from 38.4 % in 2009).
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* The newcomer on the list of countries using wind power commercially is a Mediterranean country, '''Cyprus''', which for the first time installed a larger grid-connected wind farm, with 82 MW.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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The top 10 countries by Total Installed Capacity for the year 2010, is illustrated in the chart below:
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[[Image:Top_Installed_Countries.JPG|center|702*434px|thumb|Top Countries by Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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To view the Top 10 countries by different other parameters for the year 2010, click on the links below:
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;# [[Top 10 countries by Total New Installed Capacity]]
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;# [[Top 10 countries by Capacity per Capita (kW/cap)]]
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;# [[Top 10 countries by Capacity per Land Area (kW/sq. km)]]
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;# [[Top 10 countries by Capacity per GDP (kW/ million USD)]]
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To view the '''[[Country-wise Installed Wind Power Capacity]]''' (MW) 2002-2010 (Source: World Wind Energy Association), '''[http://dolcera.com/wiki/index.php?title=Country-wise_Installed_Wind_Power_Capacity click here]'''
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==Country Profiles==
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===China===
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<br>'''Wind Energy Outlook for China - 2011 & Beyond'''
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<br>Despite its rapid and seemingly unhampered expansion, the
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Chinese wind power sector continues to face significant
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challenges, including issues surrounding grid access and
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integration, reliability of turbines and a coherent strategy for
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developing China’s offshore wind resource. These issues will
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be prominent during discussions around the twelfth Five-Year
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Plan, which will be passed in March 2011. According to the
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draft plan, this is expected to reflect the Chinese
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government’s continuous and reinforced commitment to
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wind power development, with national wind energy targets
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of 90 GW for 2015 and 200 GW for 2020.
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For a detailed country profile of China please visit this [[China Wind Energy Profile Link]]
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===India===
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<br>'''Wind Energy Main market developments in 2010'''
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<br>Today the Indian market is emerging as one of the major
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manufacturing hubs for wind turbines in Asia. Currently,
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seventeen manufacturers have an annual production capacity
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of 7,500 MW. According to the WISE, the annual wind turbine
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manufacturing capacity in India is likely to exceed
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17,000 MW by 2013.
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<br>The Indian market is expanding with the leading wind
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companies like Suzlon, Vestas, Enercon, RRB Energy and GE
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now being joined by new entrants like Gamesa, Siemens, and
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WinWinD, all vying for a greater market share. Suzlon, however,
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is still the market leader with a market share of over 50%.
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<br>The Indian wind industry has not been significantly affected
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by the financial and economic crises. Even in the face of a
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global slowdown, the Indian annual wind power market has
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grown by almost 68%. However, it needs to be pointed out
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that the strong growth in 2010 might have been stimulated
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by developers taking advantage of the accelerated
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depreciation before this option is phased out.
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For a detailed country profile of India please visit this [[India Wind Energy Profile Link]]
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==Market Share Analysis==
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===Global Market Share===
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* Vestas leads the Global Market in the 2010 with a 12% market share according to Make Consulting, while BTM Consulting reports it to have a 14.8% market share.
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* According to Make Consulting, the global market share of Vestas has decreased from 19% in 2008, to 14.5% in 2009, to 12% in 2010.
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* According to BTM Consulting, the global market share of Vestas has changed from 19% in 2008, to 12% in 2009, to 14.8% in 2010.
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* According to Make Consulting, the global market share of GE Energy has decreased from 18% in 2008, to 12.5% in 2009, to 10% in 2010.
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* The market share of world no. 2 Sinovel, has been constantly increasing, from 5% in 2008 , to 9.3% in 2009, to 11% in 2010
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* The top 5 companies have been occupying more than half of the Global Market Share from 2008 to 2010
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Source: [http://www.make-consulting.com Make Consulting], [http://www.btmgcs.com/ BTM Global Consulting]
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The chart given below illustrates the Global Market Share Comparison of Major Wind Energy Companies for the period 2008-2010, as provided by two different agencies, Make Consulting and BTM Consulting:
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[[Image:Market_Share_Comparison.JPG|center|1171*459px|thumb|Global Market Share Comparison of Major Companies for the period 2008-2010
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, Source: [http://www.make-consulting.com Make Consulting], [http://www.btmgcs.com/ BTM Global Consulting]]]
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===Market Share - Top 10 Markets===
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* While Vestas is the Global Leader, it is the leader in only one of Top 10 markets, which is 10<sup>th</sup> placed Sweden
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* But, Vestas is ranked 2<sup>nd</sup> in 5 of Top 10 markets
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* Sinovel, ranked 2<sup>nd</sup> globally, features only once in the Top 3 Companies list in the Top 10 markets, but scores globally because it leads the largest market China
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* The table given below illustrates the Top 3 players in Top 10 Wind Energy Markets of the world:
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{|border="2" cellspacing="0" cellpadding="4" width="50%" align="center"
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|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Market'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''MW'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 1'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 2'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 3'''</font>
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|-
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|bgcolor = "#DBE5F1"|'''China'''
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|align = "center" bgcolor = "#DBE5F1"|18928
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|align = "center" bgcolor = "#DBE5F1"|Sinovel
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|align = "center" bgcolor = "#DBE5F1"|Goldwind
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|align = "center" bgcolor = "#DBE5F1"|Dongfang
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|-
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|bgcolor = "#DBE5F1"|'''USA'''
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|align = "center" bgcolor = "#DBE5F1"|5115
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|align = "center" bgcolor = "#DBE5F1"|GE Energy
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|Siemens
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|-
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|bgcolor = "#DBE5F1"|'''India'''
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|align = "center" bgcolor = "#DBE5F1"|2139
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|align = "center" bgcolor = "#DBE5F1"|Suzlon
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|align = "center" bgcolor = "#DBE5F1"|Enercon
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|-
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|bgcolor = "#DBE5F1"|'''Germany'''
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|align = "center" bgcolor = "#DBE5F1"|1551
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|align = "center" bgcolor = "#DBE5F1"|Enercon
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|Suzlon
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|-
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|bgcolor = "#DBE5F1"|'''UK'''
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|align = "center" bgcolor = "#DBE5F1"|1522
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|align = "center" bgcolor = "#DBE5F1"|Siemens
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|Gamesa
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|-
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|bgcolor = "#DBE5F1"|'''Spain'''
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|align = "center" bgcolor = "#DBE5F1"|1516
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|align = "center" bgcolor = "#DBE5F1"|Gamesa
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|GE Energy
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|-
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|bgcolor = "#DBE5F1"|'''France'''
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|align = "center" bgcolor = "#DBE5F1"|1186
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|align = "center" bgcolor = "#DBE5F1"|Enercon
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|align = "center" bgcolor = "#DBE5F1"|Suzlon
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|-
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|bgcolor = "#DBE5F1"|'''Italy'''
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|align = "center" bgcolor = "#DBE5F1"|948
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|align = "center" bgcolor = "#DBE5F1"|Gamesa
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|Suzlon
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|-
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|bgcolor = "#DBE5F1"|'''Canada'''
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|align = "center" bgcolor = "#DBE5F1"|690
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|align = "center" bgcolor = "#DBE5F1"|Siemens
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|align = "center" bgcolor = "#DBE5F1"|GE Energy
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|align = "center" bgcolor = "#DBE5F1"|Enercon
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|-
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|bgcolor = "#DBE5F1"|'''Sweeden'''
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|align = "center" bgcolor = "#DBE5F1"|604
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|align = "center" bgcolor = "#DBE5F1"|Vestas
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|align = "center" bgcolor = "#DBE5F1"|Enercon
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|align = "center" bgcolor = "#DBE5F1"|Siemens
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|-
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|align = "center" bgcolor = "#DBE5F1" colspan = "5"|''Source: BTM Consult - part of Navigant Consulting - March 2011''
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|-
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|}<br clear="all">
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Source: [http://www.btm.dk/reports/world+market+update+2010 BTM Consult]
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==Company Profiles==
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# '''[[Vestas Wind Systems A/S]]'''
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# '''[[Suzlon Energy]]'''
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==Major Wind Turbine Suppliers==
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{|border="2" cellspacing="0" cellpadding="4" width="50%" align="center"
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Turbine maker'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Rotor blades'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Gear boxes'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Generators'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Towers'''</font>
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Controllers'''</font>
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|-
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|bgcolor = "#DBE5F1"|Vestas
+
−
|bgcolor = "#DBE5F1"|Vestas, LM
+
−
|bgcolor = "#DBE5F1"|Bosch Rexroth, Hansen, Wingery, Moventas
+
−
|bgcolor = "#DBE5F1"| Weier, Elin, ABB, LeroySomer
+
−
|bgcolor = "#DBE5F1"| Vestas, NEG, DMI
+
−
|bgcolor = "#DBE5F1"|Cotas (Vestas),<br>NEG (Dancontrol)
+
−
|-
+
−
|bgcolor = "#DBE5F1"|GE energy
+
−
|bgcolor = "#DBE5F1"|LM, Tecsis
+
−
|bgcolor = "#DBE5F1"|Wingery, Bosch, Rexroth, Eickhoff, GE
+
−
|bgcolor = "#DBE5F1"|Loher, GE
+
−
|bgcolor = "#DBE5F1"|DMI, Omnical, SIAG
+
−
|bgcolor = "#DBE5F1"|GE
+
−
|-
+
−
|bgcolor = "#DBE5F1"|Gamesa
+
−
|bgcolor = "#DBE5F1"|Gamesa, LM
+
−
|bgcolor = "#DBE5F1"| Echesa (Gamesa), Winergy, Hansen
+
−
|bgcolor = "#DBE5F1"|Indar (Gamesa), Cantarey
+
−
|bgcolor = "#DBE5F1"|Gamesa
+
−
|bgcolor = "#DBE5F1"| Ingelectric (Gamesa)
+
−
|-
+
−
|bgcolor = "#DBE5F1"|Enercon
+
−
|bgcolor = "#DBE5F1"|Enercon
+
−
|bgcolor = "#DBE5F1"|Direct drive
+
−
|bgcolor = "#DBE5F1"|Enercon
+
−
|bgcolor = "#DBE5F1"|KGW, SAM
+
−
|bgcolor = "#DBE5F1"|Enercon
+
−
|-
+
−
|bgcolor = "#DBE5F1"| Siemens<br>wind
+
−
|bgcolor = "#DBE5F1"|Siemens, LM
+
−
|bgcolor = "#DBE5F1"|Winergy
+
−
|bgcolor = "#DBE5F1"|ABB
+
−
|bgcolor = "#DBE5F1"|Roug, KGW
+
−
|bgcolor = "#DBE5F1"| Siemens, KK Electronic
+
−
|-
+
−
|bgcolor = "#DBE5F1"|Suzlon
+
−
|bgcolor = "#DBE5F1"|Suzlon
+
−
|bgcolor = "#DBE5F1"|Hansen, Winergy
+
−
|bgcolor = "#DBE5F1"| Suzlon,<br>Siemens
+
−
|bgcolor = "#DBE5F1"|Suzlon
+
−
|bgcolor = "#DBE5F1"| Suzlon, Mita Teknik
+
−
|-
+
−
|bgcolor = "#DBE5F1"|Repower
+
−
|bgcolor = "#DBE5F1"|LM
+
−
|bgcolor = "#DBE5F1"| Winergy, Renk, Eickhoff
+
−
|bgcolor = "#DBE5F1"|N/A
+
−
|bgcolor = "#DBE5F1"|N/A
+
−
|bgcolor = "#DBE5F1"| Mita Teknik, ReGuard
+
−
|-
+
−
|bgcolor = "#DBE5F1"|Nordex
+
−
|bgcolor = "#DBE5F1"|Nordex
+
−
|bgcolor = "#DBE5F1"| Winergy, Eickhoff, Maag
+
−
|bgcolor = "#DBE5F1"|Loher
+
−
|bgcolor = "#DBE5F1"| Nordex, Omnical
+
−
|bgcolor = "#DBE5F1"| Nordex, Mita Teknik
+
−
|-
+
−
|align = "center" bgcolor = "#DBE5F1" colspan = "6"|''Source: BTM Consult''
+
−
|-
+
−
|}<br clear="all">
+
−
 
+
−
==Products of Top Companies==
+
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width=”38”|<font color="#FFFFFF">'''S. No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Product'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date (mm/dd/yy)'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Specifications'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee / Applicant'''</font>
−
|-valign="top"
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110047011%22.PGNR.&OS=DN/20110047011&RS=DN/20110047011 US20110047011A1]</u></font>
−
|bgcolor = "#DCE6F1"|V80
+
|align = "center" bgcolor = "#DCE6F1"|02/24/11
−
|bgcolor = "#DCE6F1"|'''Rated Power: '''2.0 MW,  '''Frequency:''' 50 Hz/60 Hz, '''Number of Poles:''' 4-pole, '''Operating Temperature: -'''30°C to 40°
+
|bgcolor = "#DCE6F1"|Motorola
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Incentives to optimize the performance of femto cell groups
 +
|-valign = "top"
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110039560%22.PGNR.&OS=DN/20110039560&RS=DN/20110039560 US20110039560A1]</u></font>
−
|V90
+
|align = "center"|02/17/11
−
|'''Rated Power:''' 1.8/2.0 MW, '''Frequency :''' 50 Hz/60 Hz, '''Number of Poles :''' 4-pole(50 Hz)/6-pole(60 Hz), '''Operating Temperature: -'''30°C to 40°
+
|Cisco Technology
−
|- valign="top"
+
|System and method for providing access in a network environment
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=2011005654 WO2011005654A2]</u></font>
−
|bgcolor = "#DCE6F1"|V90 Offshore
+
|align = "center" bgcolor = "#DCE6F1"|01/13/11
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 3.0 MW, '''Frequency:''' 50 Hz/60 Hz, '''Number of Poles:''' 4-pole, '''Operating Temperature: '''-30°C to 40°
+
|bgcolor = "#DCE6F1"|Intel Corporation
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Initializing femtocells
 +
|-valign = "top"
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://www.china-windturbine.com/news/doubly_wind_turbines.htm North Heavy Company]</u></font>
+
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7855977.PN.&OS=PN/7855977&RS=PN/7855977 US7855977B2]</u></font>
−
|2 MW DFIG
+
|align = "center"|12/21/10
−
|'''Rated Power:''' 2.0 MW, '''Rated Voltage:''' 690V, '''Rated Current:''' 1670A, '''Frequency:''' 50Hz, '''Number of Poles :''' 4-pole,  '''Rotor Rated Voltage:''' 1840V, '''Rotor Rated Current''' 670A, '''Rated Speed:''' 1660rpm;''' Power Speed Range: '''520-1950 rpm, '''Insulation Class:''' H, '''Protection Class:''' IP54,  '''Motor Temperature Rise''' =<nowiki><</nowiki>95K
+
|AT&T
−
|- valign="top"
+
|Alarming in a femto cell network
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://docs.google.com/viewer?a=v&q=cache:X9KReq0YEigJ:www.iberdrolarenewables.us/bluecreek/docs/primary/03-Appendices/_Q-Brochure-of-G-90-Turbine/Brochure-G-90-Turbine.pdf+gamesa+g90&hl=en&pid=bl&srcid=ADGEESgldaLogi1i5Pg71zE-FO_AMqbeKL5wJiA8LVklgq5ev2in Gamesa]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100309790%22.PGNR.&OS=DN/20100309790&RS=DN/20100309790 US20100309790A1]</u></font>
−
|bgcolor = "#DCE6F1"|G90
+
|align = "center" bgcolor = "#DCE6F1"|12/09/10
−
|bgcolor = "#DCE6F1"|'''Rated Voltage:''' 690 V,  '''Frequency:''' 50 Hz,  '''Number of Poles:''' 4,  '''Rotational Speed:''' 900:1,900 rpm (rated 1,680 rpm) (50Hz); '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class:''' IP 54, '''Power Factor(standard):'''  0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power Factor(Optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
|bgcolor = "#DCE6F1"|Alcatel-Lucent
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Femto base stations and methods for operating the same
 +
|-valign = "top"
 
|align = "center"|6
 
|align = "center"|6
−
|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100285812%22.PGNR.&OS=DN/20100285812&RS=DN/20100285812 US20100285812A1]</u></font>
−
| N80
+
|align = "center"|11/11/10
−
|'''Rated Power:''' 2.5 MW, '''Rated Voltage:''' 690V, '''Frequency:''' 50/60Hz, '''Cooling Systems:''' liquid/air
+
|Hitachi
−
|- valign="top"
+
|Call admission priority control determination device and mobile wireless communication system
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100279704%22.PGNR.&OS=DN/20100279704&RS=DN/20100279704 US20100279704A1]</u></font>
−
|bgcolor = "#DCE6F1"| N90
+
|align = "center" bgcolor = "#DCE6F1"|11/04/10
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 2.5 MW, '''Rated Voltage: '''690V,''' Frequency: '''50/60Hz,''' Cooling Systems: '''liquid/air
+
|bgcolor = "#DCE6F1"|NEC Corporation
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Method for controlling access to a mobile communications network
 +
|-valign = "top"
 
|align = "center"|8
 
|align = "center"|8
−
|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100267386%22.PGNR.&OS=DN/20100267386&RS=DN/20100267386 US20100267386A1]</u></font>
−
|N100
+
|align = "center"|10/21/10
−
|'''Rated Power:''' 2.4 MW, '''Rated Voltage: '''690V, '''Frequency: '''50/60Hz, '''Cooling Systems: '''liquid/air
+
|Qualcomm Incorporated
−
|- valign="top"
+
|Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100177695%22.PGNR.&OS=DN/20100177695&RS=DN/20100177695 US20100177695A1]</u></font>
−
|bgcolor = "#DCE6F1"| N117
+
|align = "center" bgcolor = "#DCE6F1"|07/15/10
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 2.5 MW, '''Rated Voltage: '''690V, '''Frequency: '''50/60Hz, '''Cooling Systems: '''liquid/air
+
|bgcolor = "#DCE6F1"|Samsung Electronics
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Technique for interference mitigation using mobile station signaling
 +
|-valign = "top"
 
|align = "center"|10
 
|align = "center"|10
−
|<font color="#0000FF"><u>[http://www.converteam.com/majic/pageServer/1704040148/en/index.html Converteam]</u></font>
+
|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=JP2010157807A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false JP2010157807A]</u></font>
−
|DFIG
+
|align = "center"|07/15/10
−
|NA
+
|NEC Corporation
−
|- valign="top"
+
|Communication system, femto cell base station, authentication device, communication method, and communication program
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|11
 
|align = "center" bgcolor = "#DCE6F1"|11
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://geoho.en.alibaba.com/product/252321923-0/1_5MW_doubly_fed_asynchronous_generator.html Xian Geoho Energy Technology]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100165957%22.PGNR.&OS=DN/20100165957&RS=DN/20100165957 US20100165957A1]</u></font>
−
|bgcolor = "#DCE6F1"|1.5MW DFIG
+
|align = "center" bgcolor = "#DCE6F1"|07/01/10
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1550KW,  '''Rated Voltage: '''690V, '''Rated Speed: '''1755 r/min, '''Speed Range: '''975<nowiki>~</nowiki>1970 r/min, '''Number of Poles: '''4-pole, '''Stator Rated Voltage: '''690V±10%, '''Stator Rated Current: '''1115A; '''Rotor Rated Voltage: '''320V, '''Rotor Rated Current: '''430A, '''Winding Connection: '''Y / Y, '''Power Factor: '''0.95(Lead) <nowiki>~</nowiki> 0.95Lag,''' Protection Class: '''IP54, '''Insulation Class: '''H, '''Work Mode: '''S1, '''Installation ModeI: '''M B3, '''Cooling Mode: '''Air cooling,  '''Weight: '''6950kg
+
|bgcolor = "#DCE6F1"|Airvana
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Providing a cellular network with connectivity to a different network
 +
|-valign = "top"
 
|align = "center"|12
 
|align = "center"|12
−
|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=2010063227 WO2010063227A1]</u></font>
−
|TW450XX (0.5-1 KW)
+
|align = "center"|06/10/10
−
|'''Rated Power:''' 0.5 -1 KW, '''Rated Voltage: '''460/ 575/ 690 V, '''Frequency: '''50/ 60 Hz, '''Number of Poles: '''4/6,''' Ambient Temp.(°C): -'''40 to 50, '''Speed Range (% of Synch. Speed): '''68% to 134%,  '''Power Factor (Leading): -'''0.90 to <nowiki>+</nowiki>0.90 , '''Insulation Class: '''H/F, '''Efficiency: '''<nowiki>></nowiki>= 96%
+
|Huawei Technologies
−
|- valign="top"
+
|Positioning method and device for the home base station
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|13
 
|align = "center" bgcolor = "#DCE6F1"|13
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100135201%22.PGNR.&OS=DN/20100135201&RS=DN/20100135201 US20100135201A1]</u></font>
−
|bgcolor = "#DCE6F1"|TW500XX (1-2 KW)
+
|align = "center" bgcolor = "#DCE6F1"|06/03/10
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1-2 kW,''' Rated Voltage:''' 460/ 575/ 690 V, '''Frequency:''' 50/ 60 Hz, '''Number of Poles:''' 4/6, Ambient Temp.(°C): -40 to 50; '''Speed Range (% of Synch. Speed):''' 68 to 134%, '''Power Factor(Leading): -'''0.90 to <nowiki>+</nowiki>0.90, '''Insulation Class: '''H/F, '''Efficiency:''' <nowiki>></nowiki>= 96%
+
|bgcolor = "#DCE6F1"|AT&T
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Registration notification for mobile device management
 +
|-valign = "top"
 
|align = "center"|14
 
|align = "center"|14
−
|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100130212%22.PGNR.&OS=DN/20100130212&RS=DN/20100130212 US20100130212A1]</u></font>
−
|TW560XX (2-3 KW)
+
|align = "center"|05/27/10
−
|'''Rated Power: '''2-3kW, '''Rated Voltage: '''460/ 575/ 690 V, '''Frequency: '''50/ 60 Hz, '''Number of Poles: '''4/6, '''Ambient Temp(°C): ''' -40 to 50, '''Speed Range(% of Synch. Speed)''':''' '''68 to 134%, '''Power Factor(Leading):''' -0.90 to <nowiki>+</nowiki>0.90, '''Insulation Class: '''H/F, '''Efficiency:''' <nowiki>></nowiki>= 96%.
+
|ZTE
−
|- valign="top"
+
|Femto cell handover in wireless communications
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|15
 
|align = "center" bgcolor = "#DCE6F1"|15
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.acciona-na.com/About-Us/Our-Projects/U-S-/West-Branch-Wind-Turbine-Generator-Assembly-Plant.aspx Acciona]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=GB2461845A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false GB2461845A]</u></font>
−
|bgcolor = "#DCE6F1"|AW1500
+
|align = "center" bgcolor = "#DCE6F1"|01/20/10
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1.5MW, '''Rated Voltage: '''690 V, '''Frequency: '''50 Hz, '''Number of Poles: '''4,  '''Rotational Speed: '''900:1,900 rpm(rated 1,680 rpm) (50Hz), '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class: '''IP54, '''Power Factor(standard): '''0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power factor(optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
|bgcolor = "#DCE6F1"|Ubiquisys
−
|- valign="top"
+
|bgcolor = "#DCE6F1"|Femtocell basestation scrambling code selection
 +
|-valign = "top"
 
|align = "center"|16
 
|align = "center"|16
−
|<font color="#0000FF"><u>[http://www.acciona-na.com/About-Us/Our-Projects/U-S-/West-Branch-Wind-Turbine-Generator-Assembly-Plant.aspx Acciona]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090286540%22.PGNR.&OS=DN/20090286540&RS=DN/20090286540 US20090286540A1]</u></font>
−
|AW3000
+
|align = "center"|11/19/09
−
|'''Rated Power:''' 3.0MW, '''Rated Voltage: ''' 690 V, '''Frequency: '''50 Hz, '''Number of Poles: '''4, '''Rotational Speed: '''900:1,900 rpm(rated 1,680 rpm) (50Hz), '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class: '''IP54, '''Power Factor(standard): '''0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power Factor (optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
|AT&T
−
|- valign="top"
+
|Femtocell architecture for information management
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|17
 
|align = "center" bgcolor = "#DCE6F1"|17
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://gepower.com/businesses/ge_wind_energy/en/index.htm General Electric]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=EP2112854A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2112854A1]</u></font>
−
|bgcolor = "#DCE6F1"|GE 1.5/2.5MW
+
|align = "center" bgcolor = "#DCE6F1"|10/28/09
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1.5/2.5 MW, '''Frequency(Hz): '''50/60
+
|bgcolor = "#DCE6F1"|Nokia Siemens Networks
−
|-
+
|bgcolor = "#DCE6F1"|Access control method for cellular networks comprising femto-cells
−
|}
+
|-valign = "top"
−
 
+
|align = "center"|18
−
= IP Search & Analysis =
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090253421%22.PGNR.&OS=DN/20090253421&RS=DN/20090253421 US20090253421A1]</u></font>
−
== Doubly-fed Induction Generator: Search Strategy ==
+
|align = "center"|10/08/09
−
The present study on the IP activity in the area of horizontal axis wind turbines with focus on '''''Doubly-fed Induction Generator (DFIG)''''' is based on a search conducted on Thomson Innovation.
+
|Sony Ericsson Mobile Communications
−
===Control Patents===
+
|Local network management of femtocells
−
 
+
|-valign = "top"
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
|align = "center" bgcolor = "#DCE6F1"|19
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=GB2456503A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false GB2456503A]</u></font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
+
|align = "center" bgcolor = "#DCE6F1"|07/22/09
−
|align = "center" bgcolor = "#4F81BD" width="15%"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
+
|bgcolor = "#DCE6F1"|ip.access
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
+
|bgcolor = "#DCE6F1"|Using global cell identifier for handover in a combined femto-cell/macro-cell environment
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
+
|-valign = "top"
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|1
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6278211.PN.&OS=PN/6278211&RS=PN/6278211 US6278211]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|08/02/01
+
−
|bgcolor = "#DCE6F1"|Sweo Edwin
+
−
|bgcolor = "#DCE6F1"|Brush-less doubly-fed induction machines employing dual cage rotors
+
−
|- valign="top"
+
−
|align = "center"|2
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6954004.PN.&OS=PN/6954004&RS=PN/6954004 US6954004]</u></font>
+
−
|align = "center"|10/11/05
+
−
|Spellman High Voltage Electron
+
−
|Doubly fed induction machine
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|3
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7411309.PN.&OS=PN/7411309&RS=PN/7411309 US7411309]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|08/12/08
+
−
|bgcolor = "#DCE6F1"|Xantrex Technology
+
−
|bgcolor = "#DCE6F1"|Control system for doubly fed induction generator
+
−
|- valign="top"
+
−
|align = "center"|4
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7485980.PN.&OS=PN/7485980&RS=PN/7485980 US7485980]</u></font>
+
−
|align = "center"|02/03/09
+
−
|Hitachi
+
−
|Power converter for doubly-fed power generator system
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7800243.PN.&OS=PN/7800243&RS=PN/7800243 US7800243]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|09/21/10
+
−
|bgcolor = "#DCE6F1"|Vestas Wind Systems
+
−
|bgcolor = "#DCE6F1"|Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
+
−
|- valign="top"
+
−
|align = "center"|6
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7830127.PN.&OS=PN/7830127&RS=PN/7830127 US7830127]</u></font>
+
−
|align = "center"|11/09/10
+
−
|Wind to Power System
+
−
|Doubly-controlled asynchronous generator
+
−
|-
+
 
|}
 
|}
  
 
===Patent Classes===
 
===Patent Classes===
−
 
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class No.'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class Code'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class Type'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class Type'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Definition'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class Definition'''</font>
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=F03D0009000000 F03D9/00 ]</u></font>
+
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs370sf.htm?370_328&S&39&3T#3T 370328]
−
|bgcolor = "#DCE6F1"|IPC
+
|bgcolor = "#DCE6F1"|USPC
−
|bgcolor = "#DCE6F1"|Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for / Wind motors / '''Adaptations of wind motors for special use; Combination of wind motors with apparatus driven thereby (aspects predominantly concerning driven apparatus) '''
+
|bgcolor = "#DCE6F1"|Multiplex communications - Communication over free space - '''Having a plurality of contiguous regions served by respective fixed stations'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_EP&ECLA=f03d9/00c F03D9/00C ]</u></font>
+
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs370sf.htm?370_329&S&39&3T&3U#3U 370329]
−
|ECLA
+
|USPC
−
|Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for / Wind motors / Adaptations of wind motors for special use; Combination of wind motors with apparatus driven thereby (aspects predominantly concerning driven apparatus) /''' The apparatus being an electrical generator '''
+
|Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations – '''Channel assignment'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#&refresh=page&notion=scheme&version=20110101&symbol=H02J0003380000 H02J3/38 ]</u></font>
+
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs370sf.htm?370_331&S&39&3T&3U&3W#3W 370331]
−
|bgcolor = "#DCE6F1"|IPC
+
|bgcolor = "#DCE6F1"|USPC
−
|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy / Circuit arrangements for ac mains or ac distribution networks / '''Arrangements for parallely feeding a single network by two or more generators, converters or transformers '''
+
|bgcolor = "#DCE6F1"|Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations - Channel assignment – '''Hand-off control'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=H02K0017420000 H02K17/42 ]
+
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs370sf.htm?370_338&S&39&3T&43#43 370338]
−
</u></font>
+
|USPC
−
|IPC
+
|Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations – '''Contiguous regions interconnected by a local area network'''
−
|Generation, conversion, or distribution of electric power / Dynamo-electric machines / Asynchronous induction motors; Asynchronous induction generators / '''Asynchronous induction generators '''
+
|-valign = "top"
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=H02P0009000000 H02P9/00 ]</u></font>
+
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_422.1&S&C&10#10 4554221]
−
|bgcolor = "#DCE6F1"|IPC
+
|bgcolor = "#DCE6F1"|USPC
−
|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / Control or regulation of electric motors, generators, or dynamo-electric converters; controlling transformers, reactors or choke coils /''' Arrangements for controlling electric generators for the purpose of obtaining a desired output '''
+
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - '''Zoned or cellular telephone system'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|6
 
|align = "center"|6
−
|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc290/sched290.htm#C290S044000 290/044]</u></font>
+
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_434&S&C&10&1F#1F 455434]
 
|USPC
 
|USPC
−
|Prime-mover dynamo plants / electric control / Fluid-current motors / '''Wind '''
+
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Control or access channel scanning'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc290/sched290.htm#C290S055000 290/055]</u></font>
+
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_435.1&S&C&10&1G#1G 4554351]
 
|bgcolor = "#DCE6F1"|USPC
 
|bgcolor = "#DCE6F1"|USPC
−
|bgcolor = "#DCE6F1"|Prime-mover dynamo plants / Fluid-current motors / '''Wind'''  
+
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Registration'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|8
 
|align = "center"|8
−
|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc318/sched318.htm#C318S727000 318/727]</u></font>
+
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_435.2&S&C&10&1G&1H#1H 4554352]
 
|USPC
 
|USPC
−
|Electricity: motive power systems / '''Induction motor systems '''
+
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Registration – '''System selection'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc322/sched322.htm#C322S047000 322/047]</u></font>
+
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_435.3&S&C&10&1G&1H&1I#1I 4554353]
 
|bgcolor = "#DCE6F1"|USPC
 
|bgcolor = "#DCE6F1"|USPC
−
|bgcolor = "#DCE6F1"|Electricity: single generator systems / Generator control / '''Induction generator '''
+
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Registration - System selection – '''Based on priority'''
−
|-
+
|-valign = "top"
 +
|align = "center"|10
 +
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_436&S&C&10&1J#1J 455436]
 +
|USPC
 +
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Handoff'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|11
 +
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_444&S&C&10&1J&1R#1R 455444]
 +
|bgcolor = "#DCE6F1"|USPC
 +
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Handoff – '''Between macro and micro cells'''
 +
|-valign = "top"
 +
|align = "center"|12
 +
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_445&S&C&10&1S#1S 455445]
 +
|USPC
 +
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Call routing'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|13
 +
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_446&S&C&10&1T#1T 455446]
 +
|bgcolor = "#DCE6F1"|USPC
 +
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - Zoned or cellular telephone system –''' Including cell planning or layout'''
 +
|-valign = "top"
 +
|align = "center"|14
 +
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_450&S&C&10&1X#1X 455450]
 +
|USPC
 +
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Channel allocation'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|15
 +
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_452.2&S&C&10&1X&1Z&20#20 4554522]
 +
|bgcolor = "#DCE6F1"|USPC
 +
|bgcolor = "#DCE6F1"|Telecommunications - Radiotelephone system - Zoned or cellular telephone system - Channel allocation - Dynamic allocation – '''Based on service quality'''
 +
|-valign = "top"
 +
|align = "center"|16
 +
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_456.1&S&C&10&24#24 4554561]
 +
|USPC
 +
|Telecommunications - Radiotelephone system - Zoned or cellular telephone system – '''Location monitoring'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|17
 +
|bgcolor = "#DCE6F1"|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_522&S&37&3J&3Q&40&45#45 455522]
 +
|bgcolor = "#DCE6F1"|USPC
 +
|bgcolor = "#DCE6F1"|Telecommunications - Transmitter and receiver at separate stations - Plural transmitters or receivers - To or from mobile station – '''Transmission power control technique'''
 +
|-valign = "top"
 +
|align = "center"|18
 +
|[http://www.uspto.gov/web/patents/classification/shadowFiles/defs455sf.htm?455_561&S&52&5J&5W#5W 455561]
 +
|USPC
 +
|Telecommunications - transmitter and receiver at same station - Radiotelephone equipment detail – '''Base station detail'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|19
 +
|bgcolor = "#DCE6F1"|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04B0007000000 H04B7*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Transmission - '''Radio transmission systems, i.e. using radiation field'''
 +
|-valign = "top"
 +
|align = "center"|20
 +
|[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=H04L0012280000 H04L001228]
 +
|IPC
 +
|Electric communication technique - Transmission of digital information - Data switching networks - '''characterised by path configuration, e.g. local area networks (LAN), wide area networks (WAN)'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|21
 +
|bgcolor = "#DCE6F1"| [http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04L0012560000 H04L001256]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Transmission of digital information - Data switching networks - Stored and forward switching systems - '''Packet switching systems'''
 +
|-valign = "top"
 +
|align = "center"|22
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04L0029060000 H04L002906]
 +
|IPC
 +
|Electric communication technique - Transmission of digital information - Arrangements, apparatus, circuits or systems, not covered by a single one of groups - Communication control; Communication processing - '''characterised by a protocol'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|23
 +
|bgcolor = "#DCE6F1"|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0004000000 H04W4*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - '''Services or facilities specially adapted for wireless communication networks'''
 +
|-valign = "top"
 +
|align = "center"|24
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0016000000 H04W16*]
 +
|IPC
 +
||Electric communication technique - Wireless communication networks - '''Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|25
 +
|bgcolor = "#DCE6F1"|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0028000000 H04W28*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - '''Network traffic or resource management'''
 +
|-valign = "top"
 +
|align = "center"|26
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0036000000 H04W36*]
 +
|IPC
 +
|Electric communication technique - Wireless communication networks - '''Hand-off or reselecting arrangements'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|27
 +
|bgcolor = "#DCE6F1"|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0040000000 H04W40*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - '''Communication routing or communication path finding'''
 +
|-valign = "top"
 +
|align = "center"|28
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0048000000 H04W48*]
 +
|IPC
 +
|Electric communication technique - Wireless communication networks - '''Access restriction; Network selection; Access point selection'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|29
 +
|bgcolor = "#DCE6F1"|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0060000000 H04W60*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - '''Registration, e.g. affiliation to network; De-registration, e.g. terminating affiliation'''
 +
|-valign = "top"
 +
|align = "center"|30
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0068000000 H04W68*]
 +
|IPC
 +
|Electric communication technique - Wireless communication networks - '''Notification of users, e.g. alerting for incoming communication or change of service'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|31
 +
|bgcolor = "#DCE6F1"| [http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0072000000 H04W72*]
 +
|bgcolor = "#DCE6F1"|IPC
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - '''Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources'''
 +
|-valign = "top"
 +
|align = "center"|32
 +
|[http://www.wipo.int/ipcpub/#refresh=symbol&notion=scheme&version=20110101&symbol=H04W0088000000 H04W88*]
 +
|IPC
 +
|Electric communication technique - Wireless communication networks - '''Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|33
 +
|bgcolor = "#DCE6F1"|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w36/38n H04W003638N]
 +
|bgcolor = "#DCE6F1"|ECLA
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Reselection control - by fixed network equipment - ''' Of the core network'''
 +
|-valign = "top"
 +
|align = "center"|34
 +
|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w36/00p6r H04W003600P6R]
 +
|ECLA
 +
|Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Control or signalling for completing the hand-off - Transmission and use of information for re-establishing the radio link - '''Of resource information of target access point'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|35
 +
|bgcolor = "#DCE6F1"|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w36/00p6t H04W003600P6T]
 +
|bgcolor = "#DCE6F1"|ECLA
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Control or signalling for completing the hand-off - Transmission and use of information for re-establishing the radio link - '''of access information of target access point'''
 +
|-valign = "top"
 +
|align = "center"|36
 +
|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w72/04f H04W007204F]
 +
|ECLA
 +
|Electric communication technique - Wireless communication networks - Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources - Wireless resource selection or allocation –''' Control information exchange between nodes'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|37
 +
|bgcolor = "#DCE6F1"|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w84/04c2 H04W008404C2]
 +
|bgcolor = "#DCE6F1"|ECLA
 +
|bgcolor = "#DCE6F1"|Electric communication technique - Wireless communication networks - Network topologies -  Hierarchical pre-organized networks, e.g. paging networks, cellular networks, WLAN or WLL - Large scale networks; Deep hierarchical networks - Public Land Mobile systems, e.g. cellular systems - '''using private Base Stations, e.g. femto Base Stations'''
 +
|-valign = "top"
 +
|align = "center"|38
 +
|[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_V3&ECLA=h04w8/24n H04W000824N]
 +
|ECLA
 +
|Electric communication technique - Wireless communication networks - Network data management - Processing or transfer of terminal data, e.g. status or physical capabilities - Transfer of terminal data –''' From a network towards a terminal'''
 +
|-valign = "top"
 
|}
 
|}
  
 
===Concept Table===
 
===Concept Table===
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
====English Keywords====
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 1'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''S. No.'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 2'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-1'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 3'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-2'''</font>
−
|-
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-3'''</font>
−
|align = "center" bgcolor = "#95B3D7"|'''Doubly Fed'''
+
|-valign = "top"
−
|align = "center" bgcolor = "#95B3D7"|'''Induction'''
+
|align = "center" bgcolor = "#95B3D7"|'''Femtocell'''
−
|align = "center" bgcolor = "#95B3D7"|'''Generator'''
+
|align = "center" bgcolor = "#95B3D7"|'''Access point'''
−
|-
+
|align = "center" bgcolor = "#95B3D7"|'''Gateway'''
 +
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|doubly fed
+
|bgcolor = "#DCE6F1"|femtocell
−
|bgcolor = "#DCE6F1"|induction
+
|bgcolor = "#DCE6F1"|access point
−
|bgcolor = "#DCE6F1"|generator
+
|bgcolor = "#DCE6F1"|gateway
−
|-
+
|-valign = "top"
 
|align = "center"|2
 
|align = "center"|2
−
|double output
+
|femto cell
−
|asynchronous
+
|access terminal
−
|machines
+
|home gateway
−
|-
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|dual fed
+
|bgcolor = "#DCE6F1"|home base station
−
|bgcolor = "#DCE6F1"|  
+
|bgcolor = "#DCE6F1"|3g access point
−
|bgcolor = "#DCE6F1"|systems
+
|bgcolor = "#DCE6F1"|security gateway (segw)
−
|-
+
|-valign = "top"
 
|align = "center"|4
 
|align = "center"|4
−
|dual feed
+
|small cellular base station
 +
|access point base station
 
|  
 
|  
−
|
+
|-valign = "top"
−
|-
+
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|dual output
+
|bgcolor = "#DCE6F1"|personal 2g-3g base station
 +
|bgcolor = "#DCE6F1"|low power wireless access points
 
|bgcolor = "#DCE6F1"|  
 
|bgcolor = "#DCE6F1"|  
 +
|-valign = "top"
 +
|align = "center"|6
 +
|femto base station
 +
|miniature cellphone access points
 +
|
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|7
 +
|bgcolor = "#DCE6F1"|femto network
 +
|bgcolor = "#DCE6F1"|miniature cell phone access points
 
|bgcolor = "#DCE6F1"|  
 
|bgcolor = "#DCE6F1"|  
−
|-
+
|-valign = "top"
 +
|align = "center"|8
 +
|
 +
|femtocell access point (fap)
 +
|
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|9
 +
|bgcolor = "#DCE6F1"|
 +
|bgcolor = "#DCE6F1"|cellular network access points
 +
|bgcolor = "#DCE6F1"|
 +
|-valign = "top"
 
|}
 
|}
  
−
===Thomson Innovation Search===
+
 
−
'''Database:''' Thomson Innovation<br>
+
 
−
'''Patent coverage:''' US EP WO JP DE GB FR CN KR DWPI<br>
+
====French Keywords====
−
'''Time line:''' 01/01/1836 to 07/03/2011
+
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''S. No.'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-1'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Scope'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-2'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Search String'''</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-3'''</font>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. of Hits'''</font>
+
|-valign = "top"
−
|-valign="top"
+
|align = "center" bgcolor = "#95B3D7"|'''Femtocell'''
 +
|align = "center" bgcolor = "#95B3D7"|'''Point d<nowiki>’</nowiki>accès'''
 +
|align = "center" bgcolor = "#95B3D7"|'''Gateway'''
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|'''1'''
 +
|bgcolor = "#DCE6F1"|femtocell
 +
|bgcolor = "#DCE6F1"|point d<nowiki>’</nowiki>accès
 +
|bgcolor = "#DCE6F1"|gateway
 +
|-valign = "top"
 +
|align = "center"|'''2'''
 +
|cellules femto
 +
|terminal d<nowiki>’</nowiki>accès
 +
|accueil passerelle
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|'''3'''
 +
|bgcolor = "#DCE6F1"|station de base home
 +
|bgcolor = "#DCE6F1"|point d<nowiki>’</nowiki>accès 3g
 +
|bgcolor = "#DCE6F1"|security gateway (segw)
 +
|-valign = "top"
 +
|align = "center"|'''4'''
 +
|petite station de base cellulaire
 +
|accès station de point de base
 +
|
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|'''5'''
 +
|bgcolor = "#DCE6F1"|personnel de station de base 2g-3g
 +
|bgcolor = "#DCE6F1"|low power points d<nowiki>’</nowiki>accès sans fil
 +
|bgcolor = "#DCE6F1"|
 +
|-valign = "top"
 +
|align = "center"|'''6'''
 +
|station de base femto
 +
|miniature points d<nowiki>’</nowiki>accès cellulaire
 +
|
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|'''7'''
 +
|bgcolor = "#DCE6F1"|
 +
|bgcolor = "#DCE6F1"|miniature points d<nowiki>’</nowiki>accès de téléphonie cellulaire
 +
|bgcolor = "#DCE6F1"|
 +
|-valign = "top"
 +
|align = "center"|'''8'''
 +
|
 +
|point d<nowiki>’</nowiki>accès femtocell (fap)
 +
|
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|'''9'''
 +
|bgcolor = "#DCE6F1"|
 +
|bgcolor = "#DCE6F1"|points d<nowiki>’</nowiki>accès au réseau cellulaire
 +
|bgcolor = "#DCE6F1"|
 +
|-valign = "top"
 +
|}
 +
 
 +
====German Keywords====
 +
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 +
|width = "38" align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''S. No.'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-1'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-2'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept-3'''</font>
 +
|-valign "top"
 +
|align = "center" bgcolor = "#95B3D7"|'''Femtocell'''
 +
|align = "center" bgcolor = "#95B3D7"|'''Access Point'''
 +
|align = "center" bgcolor = "#95B3D7"|'''Gateway'''
 +
|-valign  "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|Doubly-fed Induction Generator: Keywords(broad)
+
|bgcolor = "#DCE6F1"|femtocell
−
|bgcolor = "#DCE6F1"|Claims, Title, and Abstract
+
|bgcolor = "#DCE6F1"|access point
−
|bgcolor = "#DCE6F1"|(((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>4 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3)) NEAR5 (induction OR asynchronous)) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR dfig or doig)
+
|bgcolor = "#DCE6F1"|gateway
−
|align = "right" bgcolor = "#DCE6F1"|873
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center"|2
 
|align = "center"|2
−
|Doubly-fed Induction Generator: Keywords(broad)
+
|femto-zelle
−
|Full Spec.
+
|access terminal
−
|(((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>1 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3)) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1))) OR dfig or doig)
+
|home-gateway
−
|align = "center"|<nowiki>-</nowiki>
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|Induction Machine: Classes
+
|bgcolor = "#DCE6F1"|home basisstation
−
|bgcolor = "#DCE6F1"|US, IPC, and ECLA Classes
+
|bgcolor = "#DCE6F1"|3g access point
−
|bgcolor = "#DCE6F1"|((318/727 OR 322/047) OR (H02K001742))
+
|bgcolor = "#DCE6F1"|security gateway (segw)
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center"|4
 
|align = "center"|4
−
|Generators: Classes
+
|kleine zelluläre basisstation
−
|US, IPC, and ECLA Classes
+
|access point basisstation
−
|((290/044 OR 290/055) OR (F03D000900C OR H02J000338 OR F03D0009<nowiki>*</nowiki> OR H02P0009<nowiki>*</nowiki>))
+
|  
−
|align = "center"|<nowiki>-</nowiki>
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|Combined Query
+
|bgcolor = "#DCE6F1"|persönliche 2g-3g-basisstation
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
|bgcolor = "#DCE6F1"|low-power-wireless access points
−
|align = "left" bgcolor = "#DCE6F1"|2 AND 3
+
|bgcolor = "#DCE6F1"|  
−
|align = "right" bgcolor = "#DCE6F1"|109
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center"|6
 
|align = "center"|6
−
|Combined Query
+
|femto-basisstation
−
|align = "center"|<nowiki>-</nowiki>
+
|miniatur-handy-zugangspunkte
−
|align = "left"|2 AND 4
+
|  
−
|align = "right"|768
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
−
|bgcolor = "#DCE6F1"|French Keywords
+
|bgcolor = "#DCE6F1"|  
−
|bgcolor = "#DCE6F1"|Claims, Title, and Abstract
+
|bgcolor = "#DCE6F1"|miniatur-handy-zugangspunkte
−
|bgcolor = "#DCE6F1"|((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two OR deux) NEAR4 (nourris OR feed<nowiki>*</nowiki>3 OR puissance OR sortie<nowiki>*</nowiki>1 OR contrôle<nowiki>*</nowiki>1)) NEAR4 (induction OR asynchron<nowiki>*</nowiki>1) NEAR4 (générateur<nowiki>*</nowiki>1 OR generator<nowiki>*</nowiki>1 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR dfig or doig)
+
|bgcolor = "#DCE6F1"|  
−
|align = "right" bgcolor = "#DCE6F1"|262
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center"|8
 
|align = "center"|8
−
|German Keywords
+
|  
−
|Claims, Title, and Abstract
+
|femtocell access point (fap)
−
|(((((doppel<nowiki>*</nowiki>1 OR dual OR two OR zwei) ADJ3 (ausgang OR ausgänge OR kontroll<nowiki>*</nowiki> OR control<nowiki>*</nowiki>4 OR gesteuert OR macht OR feed<nowiki>*</nowiki>1 OR gefüttert OR gespeiste<nowiki>*</nowiki>1)) OR (doppeltgefüttert OR doppeltgespeiste<nowiki>*</nowiki>1)) NEAR4 (((induktion OR asynchronen) NEAR4 (generator<nowiki>*</nowiki>2 OR maschine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR (induktion?maschinen OR induktion?generatoren OR asynchronmaschine OR asynchrongenerator))) OR dfig)
+
|  
−
|align = "right"|306
+
|-valign "top"
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|Doubly-fed Induction Generator: Keywords(narrow)
+
|bgcolor = "#DCE6F1"|  
−
|bgcolor = "#DCE6F1"|Full Spec.
+
|bgcolor = "#DCE6F1"|cellular network access points
−
|bgcolor = "#DCE6F1"|(((((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>4 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3))) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1))) SAME wind) OR (dfig SAME wind))
+
|bgcolor = "#DCE6F1"|  
−
|align = "right" bgcolor = "#DCE6F1"|1375
+
|-valign "top"
−
|-valign="top"
+
−
|align = "center"|10
+
−
| Top Assignees
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|(vestas* OR (gen* ADJ2 electric*) OR ge OR hitachi OR woodward OR repower OR areva OR gamesa OR ingeteam OR nordex OR siemens OR (abb ADJ2 research) OR (american ADJ2 superconductor*) OR (korea ADJ2 electro*) OR (univ* NEAR3 navarra) OR (wind OR technolog*) OR (wind ADJ2 to ADJ2 power))
+
−
|align = "center"|-
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|11
+
−
|bgcolor = "#DCE6F1"|Combined Query
+
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
−
|bgcolor = "#DCE6F1"|2 AND 10
+
−
|align = "right" bgcolor = "#DCE6F1"|690
+
−
|-valign="top"
+
−
|align = "center"|12
+
−
|Top Inventors
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|((Andersen NEAR2 Brian) OR (Engelhardt NEAR2 Stephan) OR (Ichinose NEAR2 Masaya) OR (Jorgensen NEAR2 Allan NEAR2 Holm) OR ((Scholte ADJ2 Wassink) NEAR2 Hartmut) OR (OOHARA NEAR2 Shinya) OR (Rivas NEAR2 Gregorio) OR (Erdman NEAR2 William) OR (Feddersen NEAR2 Lorenz) OR (Fortmann NEAR2 Jens) OR (Garcia NEAR2 Jorge NEAR2 Martinez) OR (Gertmar NEAR2 Lars) OR (KROGH NEAR2 Lars) OR (LETAS NEAR2 Heinz NEAR2 Hermann) OR (Lopez NEAR2 Taberna NEAR2 Jesus) OR (Nielsen NEAR2 John) OR (STOEV NEAR2 Alexander) OR (W?ng NEAR2 Haiqing) OR (Yuan NEAR2 Xiaoming))
+
−
|align = "center"|-
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|13
+
−
|bgcolor = "#DCE6F1" |Combined Query
+
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
−
|bgcolor = "#DCE6F1"|((3 OR 4) AND 10)
+
−
|align = "right" bgcolor = "#DCE6F1"|899
+
−
|-valign="top"
+
−
|align = "center"|14
+
−
|Final Query
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|1 OR 5 OR 6 OR 7 OR 8 OR 9 OR 11 OR 13
+
−
|'''2466(1060 INPADOC Families)'''
+
−
|-
+
 
|}
 
|}
  
−
==Taxonomy==
+
===Search Query===
−
*''Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy''
+
----
−
*''Click on the red arrow adjacent to the node name to view the content for that particular node in the dashboard''  
+
 
 +
'''Database:''' Micropat<br>
 +
'''Databases covered:''' USG USA EPA EPB WO JP DEG DEA DET DEU GBA FRA<br>
 +
'''Years searched:''' 1836 - 8th March 2011
 +
 
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|<mm>[[Doubly_fed_Induction_Generator.mm|Interactive Mind-map|center|flash|Doubly-fed Induction Generator|600pt]]</mm>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Scope'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Query'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. of Hits'''</font>
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|1
 +
|bgcolor = "#DCE6F1"|Femtocell keywords
 +
|bgcolor = "#DCE6F1"|Full patent spec.
 +
|bgcolor = "#DCE6F1"|femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR (femto NEAR base NEAR station) OR (femto NEAR3 network<nowiki>*</nowiki>1)
 +
|align = "center" bgcolor = "#DCE6F1"|3795
 +
|-valign = "top"
 +
|align = "center"|2
 +
|Femtocell keywords
 +
|Claims, Title or Abstract
 +
|femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR (home NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (access NEAR5 point NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (small NEAR5 cellular NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1)
 +
|align = "center"|3176
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1" rowspan = "2"|3
 +
|bgcolor = "#DCE6F1" rowspan = "2"|Assignees Search (Restricted with Keywords)
 +
|bgcolor = "#DCE6F1"|Assignee/Applicant
 +
|bgcolor = "#DCE6F1"|Qualcomm OR Intel OR Picochip OR Ericsson OR ip.access OR (ip ADJ access) OR (Nokia ADJ Siemens) OR Motorola OR ZTE OR Agilent OR NEC OR Ubiquisys OR (AirWalk ADJ Communications) OR (Alcatel ADJ Lucent) OR Hitachi OR Cisco OR Airvana OR (Tatara ADJ System<nowiki>*</nowiki>1) OR Vodafone OR AT&T OR (Sprint ADJ Nextel) OR Verizon OR (Mobile ADJ TeleSystem<nowiki>*</nowiki>1)
 +
|align = "center" bgcolor = "#DCE6F1" rowspan = "2"|2145
 +
|-valign = "top"
 +
|bgcolor = "#DCE6F1"|Full patent spec.
 +
|bgcolor = "#DCE6F1"|(((access ADJ point<nowiki>*</nowiki>1) OR (access NEAR5 terminal<nowiki>*</nowiki>1) OR (3g NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR (access NEAR5 point<nowiki>*</nowiki>1 NEAR5 base NEAR5 station) OR (low NEAR5 power NEAR5 wireless NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR (miniature NEAR5 (cellphone OR (cell ADJ phone)) NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR ((femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1)) NEAR5 access point) OR fap OR (cellular NEAR5 network NEAR5 access NEAR5 point<nowiki>*</nowiki>1)) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1) OR femto<nowiki>*</nowiki>1)) OR (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1) OR femto<nowiki>*</nowiki>1) OR ((gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1) OR femto<nowiki>*</nowiki>1)) (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1) OR femto<nowiki>*</nowiki>)
 +
|-valign = "top"
 +
|align = "center"|4
 +
|Access Points Keywords with Femtocell
 +
|Claims, Title or Abstract
 +
|((access ADJ point<nowiki>*</nowiki>1) OR (access NEAR5 terminal<nowiki>*</nowiki>1) OR (3g NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR (access NEAR5 point<nowiki>*</nowiki>1 NEAR5 base NEAR5 station) OR (low NEAR5 power NEAR5 wireless NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR (miniature NEAR5 (cellphone OR (cell ADJ phone)) NEAR5 access NEAR5 point<nowiki>*</nowiki>1) OR ((femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1)) NEAR5 access point) OR fap OR (cellular NEAR5 network NEAR5 access NEAR5 point<nowiki>*</nowiki>1)) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR (home NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (access NEAR5 point NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (small NEAR5 cellular NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1))
 +
|align = "center"|1191
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|5
 +
|bgcolor = "#DCE6F1"|Gateway Keywords  with Femtocell
 +
|bgcolor = "#DCE6F1"|Claims, Title or Abstract
 +
|bgcolor = "#DCE6F1"|(gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR (home NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (access NEAR5 point NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (small NEAR5 cellular NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1))
 +
|align = "center" bgcolor = "#DCE6F1"|359
 +
|-valign = "top"
 +
|align = "center" rowspan = "2"|6
 +
|rowspan = "2"|Classification Search (Restricted with Keywords)
 +
|Any Classification
 +
|370328 OR 370329 OR 370331 OR 370338 OR 4554221 OR 455434 OR 4554351 OR 4554352 OR 4554353 OR 455436 OR 455444 OR 455445 OR 455446 OR 455450 OR 4554522 OR 4554561 OR 455522 OR 455561 OR H04B7<nowiki>*</nowiki> OR H04L001228 OR H04L001256 OR H04L002906 OR H04W4<nowiki>*</nowiki> OR H04W16<nowiki>*</nowiki> OR H04W28<nowiki>*</nowiki> OR H04W36<nowiki>*</nowiki> OR H04W40<nowiki>*</nowiki> OR H04W48<nowiki>*</nowiki> OR H04W60<nowiki>*</nowiki> OR H04W68<nowiki>*</nowiki> OR H04W72<nowiki>*</nowiki> OR H04W88<nowiki>*</nowiki> OR H04W003638N OR H04W003600P6R OR H04W003600P6T OR H04W007204F OR H04W008404C2 OR H04W000824N
 +
|align = "center" rowspan = "2"|1212
 +
|-valign = "top"
 +
|Full patent spec.
 +
|(((access ADJ point<nowiki>*</nowiki>1) OR (access NEAR terminal<nowiki>*</nowiki>1) OR (3g NEAR access NEAR point<nowiki>*</nowiki>1) OR (access NEAR point<nowiki>*</nowiki>1 NEAR base NEAR station) OR (low NEAR power NEAR wireless NEAR access NEAR point<nowiki>*</nowiki>1) OR (miniature NEAR (cellphone OR (cell ADJ phone)) NEAR access NEAR point<nowiki>*</nowiki>1) OR ((femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1)) NEAR access point) OR fap OR (cellular NEAR network NEAR access NEAR point<nowiki>*</nowiki>1)) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1))) OR (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1)) OR ((gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell<nowiki>*</nowiki>1 OR (femto ADJ cell<nowiki>*</nowiki>1) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell<nowiki>*</nowiki>1) OR femtocell<nowiki>*</nowiki>1) NEAR5 network<nowiki>*</nowiki>1)))
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|7
 +
|bgcolor = "#DCE6F1"|Combined Query
 +
|bgcolor = "#DCE6F1"|
 +
|bgcolor = "#DCE6F1"|1 OR 2 OR 3 OR 4 OR 5 OR 6
 +
|align = "center" bgcolor = "#DCE6F1"|[[media:finalSearchfemto.xls|2990 Unique families]] (5694)
 +
|-valign = "top"
 
|}
 
|}
  
 
==Sample Analysis==
 
==Sample Analysis==
−
A sample of 139 patents from the search is analyzed based on the taxonomy.
 
−
Provided a link below for sample spread sheet analysis for doubly-fed induction generators.<br>
 
 
===Patent Analysis===
 
===Patent Analysis===
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="38"|<font color="#FFFFFF">'''S. No'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''S.No.'''</font>
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2" |<font color="#FFFFFF">'''Patent/Publication No.'''</font>
+
|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="105"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
+
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
+
 
|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD" colspan = "2"|<font color="#FFFFFF">'''Dolcera Analysis'''</font>
 
|align = "center" bgcolor = "#4F81BD" colspan = "2"|<font color="#FFFFFF">'''Dolcera Analysis'''</font>
−
|-
+
|-valign = "top"
 
|align = "center" bgcolor = "#95B3D7"|'''Problem'''
 
|align = "center" bgcolor = "#95B3D7"|'''Problem'''
 
|align = "center" bgcolor = "#95B3D7"|'''Solution'''
 
|align = "center" bgcolor = "#95B3D7"|'''Solution'''
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100117605%22.PGNR.&OS=DN/20100117605&RS=DN/20100117605 US20100117605]</u></font>
+
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110047011%22.PGNR.&OS=DN/20110047011&RS=DN/20110047011 US20110047011A1]</u>
−
|align = "center" bgcolor = "#DCE6F1"|05/13/10
+
|bgcolor = "#DCE6F1"|Incentives to optimize the performance of femto cell groups
−
|bgcolor = "#DCE6F1"|Woodward
+
|bgcolor = "#DCE6F1"|The convergence of wireless communication and mobile computing devices continues to spur demand for wireless broadband communication services. As the demand grows, so too must the network infrastructure needed to support wireless communications.
−
|bgcolor = "#DCE6F1"|Method of and apparatus for operating a double-fed asynchronous machine in the event of transient mains voltage changes
+
|bgcolor = "#DCE6F1"|Method of incentivizing an operator of femto cell infrastructure to efficiently utilize the femto cell infrastructure. The method can include establishing, for an end user device, telecommunication network presence on a femto cell. At least one parameter measured within the femto cell can be received. Based on the measured parameter, a determination can be made as to whether to award at least one incentive to the operator of the femto cell, and the incentive can be awarded to the operator.
−
|bgcolor = "#DCE6F1"|The short-circuit-like currents in the case of transient mains voltage changes lead to a corresponding air gap torque which loads the drive train and transmission lines can damages or reduces the drive train and power system equipments.
+
|-valign = "top"
−
|bgcolor = "#DCE6F1"|The method presents that the stator connecting with the network and the rotor with a converter. The converter is formed to set a reference value of electrical amplitude in the rotor, by which a reference value of the electrical amplitude is set in the rotor after attaining a transient mains voltage change, such that the rotor flux approaches the stator flux.
+
−
|-valign="top"
+
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100045040%22.PGNR.&OS=DN/20100045040&RS=DN/20100045040 US20100045040]</u></font>
+
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110039560%22.PGNR.&OS=DN/20110039560&RS=DN/20110039560 US20110039560A1]</u></font>
−
|align = "center"|02/25/10
+
|System and method for providing access in a network environment
−
|Vestas Wind Systems
+
|Networking architectures have grown increasingly complex in communication environments. Femtocells have gained recent notoriety due to their capabilities. For many femto scenarios, connectivity and/or access protocols can pose a number of problems for end users.
−
|Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
+
|A method includes evaluating geolocation information associated with a mobile node and using the geolocation information to identify a femtocell capable of providing network access to the mobile node. A primary scrambling code is provided to the mobile node for operation in an idle mode. The method also includes communicating a secondary scrambling code to initiate access to the femtocell by the mobile node when operating in an active mode.
−
|The DFIG system has poor damping of oscillations within the flux dynamics due to cross coupling between active and reactive currents, which makes the system potentially unstable under certain circumstances and complicates the work of the rotor current controller. These oscillations can damage the drive train mechanisms.
+
|-valign = "top"
−
|A compensation block is arranged, which feeds a compensation control output to the rotor of the generator. The computation unit computes the control output during operation of the turbine to compensate partly for dependencies on a rotor angular speed of locations of poles of a generator transfer function, so that the transfer function is made independent of variations in the speed during operation of the turbine which eliminates the oscillations and increases the efficiency of the wind turbine.
+
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090267572%22.PGNR.&OS=DN/20090267572&RS=DN/20090267572 US20090267572]</u></font>
+
|bgcolor = "#DCE6F1"|<u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=2011005654 WO2011005654A2]</u>
−
|align = "center" bgcolor = "#DCE6F1"|10/29/09
+
|bgcolor = "#DCE6F1"|Initializing femtocells
−
|bgcolor = "#DCE6F1"|Woodward
+
|bgcolor = "#DCE6F1"|Femto access points generally cannot be initiated into an operator<nowiki>’</nowiki>s network, such as a WiMAX network.
−
|bgcolor = "#DCE6F1"|Current limitation for a double-fed asynchronous machine
+
|bgcolor = "#DCE6F1"|The femtocell may be pre-provisioned with certain credentials so that a femtocell access point can authenticate itself to the operator<nowiki>’</nowiki>s network and become attached to that network. The pre-provisioned parameters may include non-operator specific parameters such as the specific credentials for a particular wireless protocol, such as a WiMAX protocol. It may also include operator specific credentials including the fully qualified domain name (FQDN) of a bootstrap server in the femtocell network service provider (NSP)
−
|bgcolor = "#DCE6F1"|Abnormal currents can damage the windings in the doubly- fed induction generator. Controlling these currents with the subordinate current controllers cannot be an efficient way to extract the maximum amount of active power.
+
|-valign = "top"
−
|bgcolor = "#DCE6F1"|The method involves delivering or receiving of a maximum permissible reference value of an active power during an operation of a double-fed asynchronous machine, where predetermined active power and reactive power reference values are limited to a calculated maximum permissible active and reactive power reference values, and hence ensures reliable regulated effect and reactive power without affecting the power adjustment, the rotor is electrically connected to a pulse-controlled inverter by slip rings with a static frequency changer, and thus a tension with variable amplitude and frequency is imposed in the rotor.
+
−
|-valign="top"
+
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008944%22.PGNR.&OS=DN/20090008944&RS=DN/20090008944 US20090008944]</u></font>
+
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7855977.PN.&OS=PN/7855977&RS=PN/7855977 US7855977B2]</u></font>
−
|align = "center"|01/08/09
+
|Alarming in a femto cell network
−
|Universidad Publica De Navarra
+
|To efficiently gauging performance of a femto cell network through generation of alarms based on performance rules for aggregated operational data of multiple femto cell access points.
−
|Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network
+
|System(s) and method(s) to monitor operation quality of a femto cell network is provided. Operational data received from deployed femto cell access points are aggregated and monitored; aggregation and monitoring take place within a femto cell network platform.
−
|Double-fed asynchronous generators are very sensitive to the faults that may arise in the electricity network, such as voltage sags. During the sag conditions the current which appears in said converter may reach very high values, and may even destroy it.
+
|-valign = "top"
−
|During the event of a voltage sag occurring, the converter imposes a new set point current which is the result of adding to the previous set point current a new term, called demagnetizing current, It is proportional to a value of free flow of a generator stator. A difference between a value of a magnetic flow in the stator of the generator and a value of a stator flow associated to a direct component of a stator voltage is estimated. A value of a preset calculated difference is multiplied by a factor for producing the demagnetizing current.
+
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7355295.PN.&OS=PN/7355295&RS=PN/7355295 US7355295]</u></font>
+
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100309790%22.PGNR.&OS=DN/20100309790&RS=DN/20100309790 US20100309790A1]</u>
−
|align = "center" bgcolor = "#DCE6F1"|04/08/08
+
|bgcolor = "#DCE6F1"|Femto base stations and methods for operating the same
−
|bgcolor = "#DCE6F1"|Ingeteam Energy
+
|bgcolor = "#DCE6F1"|A major obstacle to using GPS systems to determine and track the location of a femto base station is presented when the femto base station is located indoors because satellite signal penetration indoors is highly unreliable.
−
|bgcolor = "#DCE6F1"|Variable speed wind turbine having an exciter machine and a power converter not connected to the grid
+
|bgcolor = "#DCE6F1"|The femto base stations and methods to suppress the need for external global positioning system (GPS) antennas and cables, while continually enabling a network service provider to obtain desired position information. It also provide user with the flexibility to place the femto base station at the location of his/her choice within the home or business regardless of GPS signal strength.
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|bgcolor = "#DCE6F1"|a) The active switching of the semiconductors of the grid side converter injects undesirable high frequency harmonics to the grid.<br>b) The use of power electronic converters (4) connected to the grid (9) causes harmonic distortion of the network voltage.
+
|-valign = "top"
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|bgcolor = "#DCE6F1"|Providing the way that power is only delivered to the grid through the stator of the doubly fed induction generator, avoiding undesired harmonic distortion. <br>Grid Flux Orientation (GFO) is used to accurately control the power injected to the grid. An advantage of this control system is that it does not depend on machine parameters, which may vary significantly, and theoretical machine models, avoiding the use of additional adjusting loops and achieving a better power quality fed into the utility grid.
+
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|-valign="top"
+
 
|align = "center"|6
 
|align = "center"|6
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080203978%22.PGNR.&OS=DN/20080203978&RS=DN/20080203978 US20080203978]</u></font>
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100285812%22.PGNR.&OS=DN/20100285812&RS=DN/20100285812 US20100285812A1]</u></font>
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|align = "center"|08/28/08
+
|Call admission priority control determination device and mobile wireless communication system
−
|Semikron
+
|When more than one terminal is present in the same cell and these terminals communicate with one base station, the wireless resources of that base station are shared among the plural terminals. As a result, the communication rate becomes lower than when communication is performed by only one terminal. Thus, there is a problem that the use of the femtocell base station by other users deteriorates the quality of communication by specified terminal users such as the femtocell base station administrator.
−
|Frequency converter for a double-fed asynchronous generator with variable power output and method for its operation
+
|It can be solved by a call admission priority control determination device including a registration table containing base station ID numbers of base stations and an ID number of a high-priority first terminal, and a call admission determination unit that determines call admission with reference to the registration table, wherein, when a connection request or a switching-over request for a third terminal has been received from a base station control device, the call admission determination unit, on the basis of this request, references the registration table and determines whether or not call admission for the third terminal is to be permitted.
−
|Optislip circuit with a resistor is used when speed is above synchronous speed, results in heating the resistor and thus the generator leads to limitation of operation in super synchronous range which results in tower fluctuations.
+
|-valign = "top"
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|Providing a back-to-back converter which contains the inverter circuit has direct current (DC) inputs, DC outputs, and a rotor-rectifier connected to a rotor of a dual feed asynchronous generator. A mains inverter is connected to a power grid, and an intermediate circuit connects one of the DC inputs with the DC outputs. The intermediate circuit has a semiconductor switch between the DC outputs, an intermediate circuit condenser between the DC inputs, and a diode provided between the semiconductor switch and the condenser. Thus the system is allowed for any speed of wind  and reduces the tower fluctuations.
+
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|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070210651%22.PGNR.&OS=DN/20070210651&RS=DN/20070210651 US20070210651]</u></font>
+
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100279704%22.PGNR.&OS=DN/20100279704&RS=DN/20100279704 US20100279704A1]</u>
−
|align = "center" bgcolor = "#DCE6F1"|09/13/07
+
|bgcolor = "#DCE6F1"|Method for controlling access to a mobile communications network
−
|bgcolor = "#DCE6F1"|Hitachi
+
|bgcolor = "#DCE6F1"|Current 3G redirection features do not allow for redirection of UE<nowiki>’</nowiki>s from a first cell to another cell operating at the same frequency as the first cell. Therefore, if the 3G femtocell is operating at the same frequency as a neighboring 3G RAT or macrocell, then the current redirection mechanism cannot be used for balancing the load. This is due to interference between cells.
−
|bgcolor = "#DCE6F1"|Power converter for doubly-fed power generator system
+
|bgcolor = "#DCE6F1"|For particular femtocells which have reached or are nearing full capacity, a UE such as a mobile telephone or mobile communication device can be redirected from a 3G femtocell to another macrocell operating at the same or different frequency as the femtocell (access point). This provides improved communications for existing users within the femtocell, as well as for new users whose communications have been redirected to another cell.
−
|bgcolor = "#DCE6F1"|During the ground faults, excess currents is induced in the secondary windings and flows into power converter connected to secondary side and may damage the power converter. Conventional methods of increasing the capacity of the power converter increases system cost, degrade the system and takes time to activate the system to supply power again.
+
|-valign = "top"
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|bgcolor = "#DCE6F1"|The generator provided with a excitation power converter connected to secondary windings of a doubly-fed generator via impedance e.g. reactor, and a diode rectifier connected in parallel to the second windings of the doubly-fed generator via another impedance. A direct current link of the rectifier is connected in parallel to a DC link of the converter. A controller  outputs an on-command to a power semiconductor switching element of the converter if a value of current flowing in the power semiconductor switching element is a predetermined value or larger.
+
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|-valign="top"
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|align = "center"|8
 
|align = "center"|8
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070132248%22.PGNR.&OS=DN/20070132248&RS=DN/20070132248 US20070132248]</u></font>
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100267386%22.PGNR.&OS=DN/20100267386&RS=DN/20100267386 US20100267386A1]</u></font>
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|align = "center"|06/14/07
+
|Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station
−
|General Electric
+
|The resources of a wireless communication system (e.g., bandwidth and transmit power) may be shared among multiple subscriber stations. A variety of multiple access techniques are known, including CDMA,  TDMA, FDMA, OFDMA, SC-FDMA etc. Benefits may be realized by improved methods and apparatus related to the operation of wireless communication systems.
−
|System and method of operating double fed induction generators
+
|A method  to facilitate femtocell-to-cellular base station handoff is provided. The femtocell base station may receive a neighbor list from the cellular base station. The neighbor list may include information about other cellular base stations. The femtocell base station may broadcast the neighbor list to subscriber stations that are located within a coverage area of the femtocell base station.
−
|Wind turbines with double fed induction generators are sensitive to grid faults. Conventional methods are not effective to reduce the shaft stress during grid faults and slow response and using dynamic voltage restorer (DVR) is cost expensive.
+
|-valign = "top"
−
|The protection system has a controlled impedance device. Impedance device has bidirectional semiconductors such triac, assembly of thyristors or anti-parallel thyristors. Each of the controlled impedance devices is coupled between a respective phase of a stator winding of a double fed induction generator and a respective phase of a grid side converter. The protection system also includes a controller configured for coupling and decoupling impedance in one or more of the controlled impedance devices in response to changes in utility grid voltage and a utility grid current. High impedance is offered to the grid during network faults to isolate the dual fed wind turbine generator.
+
−
|-valign="top"
+
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060192390%22.PGNR.&OS=DN/20060192390&RS=DN/20060192390 US20060192390]</u></font>
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|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100177695%22.PGNR.&OS=DN/20100177695&RS=DN/20100177695 US20100177695A1]</u>
−
|align = "center" bgcolor = "#DCE6F1"|08/31/06
+
|bgcolor = "#DCE6F1"|Technique for interference mitigation using mobile station signaling
−
|bgcolor = "#DCE6F1"|Gamesa Innovation
+
|bgcolor = "#DCE6F1"|MS cannot access the neighboring FBS because the neighboring FBS is a CSG FBS and therefore does not allow access to an unauthorized MS, except for an emergency service. Therefore, the MS falls into a black hole in the network, even though the MS is located within the service coverage area of the FBS it is authorized to receive service from. In  worse scenario, the MS is prohibited from sending any signal to the neighboring FBS since the neighboring FBS is a CSG FBS
−
|bgcolor = "#DCE6F1"|Control and protection of a doubly-fed induction generator system
+
|bgcolor = "#DCE6F1"|A method to operate an MS for Interference Mitigation (IM) in a wireless communication system including a plurality of Closed Subscriber Group (CSG) FBSs is provided. The method includes determining if the MS cannot access a first CSG FBS due to interference from a second CSG FBS, the first CSG FBS being a CSG FBS that the MS is authorized to receive service from and the second CSG FBS being a CSG FBS that the MS is not authorized to receive service from, and in the case when MS cannot access the first CSG FBS due to interference received from the second CSG FBS, transmitting an IM-Signal to the second CSG FBS requesting that the second CSG FBS mitigate the interference to the MS
−
|bgcolor = "#DCE6F1"|A short-circuit in the grid causes the generator to feed high stator-currents into the short-circuit and the rotor-currents increase very rapidly which cause damage to the power-electronic components of the converter connecting the rotor windings with the rotor-inverter.
+
|-valign = "top"
−
|bgcolor = "#DCE6F1"|The converter is provided with a clamping unit which is triggered from a non-operation state to an operation state, during detection of over-current in the rotor windings. The clamping unit comprises passive voltage-dependent resistor element for providing a clamping voltage over the rotor windings when the clamping unit is triggered.
+
−
|-valign="top"
+
 
|align = "center"|10
 
|align = "center"|10
−
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050189896%22.PGNR.&OS=DN/20050189896&RS=DN/20050189896 US20050189896]</u></font>
+
|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=JP2010157807A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false JP2010157807A]</u></font>
−
|align = "center"|09/01/05
+
|Communication system, femto cell base station, authentication device, communication method, and communication program
−
|ABB Research
+
|To provide a communication system for assuring communication security in communication between a femto cell base station and an UE.
−
|Method for controlling doubly-fed machine
+
|Communication system is presented which  includes: the UE (User Equipment) and an HLR (Home Location Register) to be used in an IMS (IP Multimedia subsystem) network; and the femto cell base station (Femto AP) organizing a prescribed communication area. The femto cell base station (Femto AP) is a communication system existing between the UE and the HLR, to keep the UE confidential through the use of authentication information corresponding to the UE obtained from the HLR when the UE is authenticated.
−
|Controlling the double fed machines on the basis of inverter control to implement the targets set for the machine, this model is extremely complicated and includes numerous parameters that are often to be determined.
+
|-valign = "top"
−
|A method is provided to use a standard scalar-controlled frequency converter for machine control. A frequency reference for the inverter with a control circuit, and reactive power reference are set for the machine. A rotor current compensation reference is set based on reactive power reference and reactive power. A scalar-controlled inverter is controlled for producing voltage for the rotor of the machine, based on the set frequency reference and rotor current compensation reference.
+
|align = "center" bgcolor = "#DCE6F1"|11
−
|-
+
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100165957%22.PGNR.&OS=DN/20100165957&RS=DN/20100165957 US20100165957A1]</u>
 +
|bgcolor = "#DCE6F1"|Providing a cellular network with connectivity to a different network
 +
|bgcolor = "#DCE6F1"|An access point in a cellular network for providing a cellular device with network connectivity to a different network.
 +
|bgcolor = "#DCE6F1"|A System is provided for use in wireless communication which includes a first device communicating via a first protocol in a first network, a cellular device communicating via a second protocol in a cellular network, the second protocol being incompatible with the first protocol, and an access point in the cellular network, the access point being accessible by the cellular device and being configured to enable communication between the first device and the cellular device.
 +
|-valign = "top"
 +
|align = "center"|12
 +
|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100135201%22.PGNR.&OS=DN/20100135201&RS=DN/20100135201 US20100135201A1]</u></font>
 +
|Registration notification for mobile device management
 +
|To notification of registration of a mobile device within femto coverage area for device content management.
 +
|A method is presented  in which notification is conveyed to a network component or platform that manages firmware content(s) updates when a mobile device for which an update is available, hands off from wireless macro network coverage onto a femto cell coverage. The notification is delivered in response to a firmware update notification delivered to a component that administers location of the mobile device, or an update flag delivered to a femto access point that can provide femto coverage to the mobile device.
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|13
 +
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100130212%22.PGNR.&OS=DN/20100130212&RS=DN/20100130212 US20100130212A1]</u>
 +
|bgcolor = "#DCE6F1"|Femto cell handover in wireless communications
 +
|bgcolor = "#DCE6F1"|Techniques and systems for performing handover of a mobile station between a cellular wireless network and a private cell or private network.
 +
|bgcolor = "#DCE6F1"|Presented a techniques and systems for performing handover of a mobile station between a cellular wireless network and a private cell or private network which includes operating a macrocell base station to provide wireless service to mobile stations, determining a candidate group of one or more femtocell base station candidates based at least on respective one or more proximities to the macrocell base station to perform a handover of a mobile station that is being served by the macrocell base station, causing the mobile station to take measurements of signals from one or more base stations identified by the candidate group, and selecting a target femtocell base station from the candidate group for the handover based on the measurements.
 +
|-valign = "top"
 +
|align = "center"|14
 +
|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=GB2461845A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false GB2461845A]</u></font>
 +
|Femtocell basestation scrambling code selection
 +
|The mobile network operator may allocate only a small number of scrambling codes for use by all of the deployed femtocell basestations, and in fact it is possible that there may be only one scrambling code allocated for use by all of the femtocell basestations in an operator<nowiki>’</nowiki>s network, and so there is a possibility that two femtocell basestations that are located very close together may need to use the same scrambling code.
 +
|A method for reducing the possibility of interference between femtocell basestations that are located very close together may need to use the same scrambling code which includes method of selecting a scrambling code, for use in a basestation of a cellular communications network, the method comprising: receiving from a management system a list comprising at least one allowed scrambling code for femtocell basestations; and detecting, in information broadcast by at least one macrocell basestation, at least one allowed scrambling code available in an area containing the basestation.
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|15
 +
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090286540%22.PGNR.&OS=DN/20090286540&RS=DN/20090286540 US20090286540A1]</u>
 +
|bgcolor = "#DCE6F1"|Femtocell architecture for information management
 +
|bgcolor = "#DCE6F1"|Congestion in the backhaul network and delays during communication increases because an increase in the number of devices attached to a femto cell, the traffic on the backhaul network of the femto cell can increase significantly
 +
|bgcolor = "#DCE6F1"|The method presented can facilitate reduction in backhaul network traffic and communication delay by employing an enterprise femto architecture. The enterprise femto architecture employs a routing platform to connect multiple femtos access points to a common femto gateway to generate a mesh network.
 +
|-valign = "top"
 +
|align = "center"|16
 +
|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=EP2112854A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2112854A1]</u></font>
 +
|Access control method for cellular networks comprising femto-cells
 +
|It is not necessary that the femto system may know at each time the cell locations of all user equipments camping in its area because it will be unable to track those user terminals entering the femto-cell while in the Idle Mode, and also taking into account the fact that up to 6 minutes might be necessary for the user terminal to trigger its periodic location update. Because of this  it would not be possible to distribute paging messages from the Core Network to individual femto-cells without running the risk that paging may not be received by the user equipment addressed thereby.
 +
|A method is provided  to control access of user terminals to a femto system which includes  Non Access Stratum (NAS) Mobility Management (MM) messages as well as Access Stratum (AS) Radio Resource Control (RRC) messages.
 +
|-valign = "top"
 +
|align = "center" bgcolor = "#DCE6F1"|17
 +
|bgcolor = "#DCE6F1"|<u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090253421%22.PGNR.&OS=DN/20090253421&RS=DN/20090253421 US20090253421A1]</u>
 +
|bgcolor = "#DCE6F1"|Local network management of femtocells
 +
|bgcolor = "#DCE6F1"|Femtocells could suffer from interference problems without unique spectrum for the femtocell underlay network such as, in a high-rise apartment complex environment, a number of femtocells may be placed near each other, and may be separated only by the floor and/or walls of adjacent apartment units. If these femtocells operate on the same channel, then one femtocell may interfere with the operation of the other femtocell, and vice-versa.
 +
|bgcolor = "#DCE6F1"|A method to minimize signal interference within a wireless network, the wireless network including a controller communicatively coupled to at least one femtocell, wherein the femtocell is operative to wirelessly transmit and receive data, the method includes: using a portable electronic device to collect signal environment data; analyzing the collected signal environment data; and based on the analyzed signal environment data, commanding the at least one femtocell to alter at least one signal transmission characteristic.
 +
|-valign = "top"
 +
|align = "center"|18
 +
|<font color="#0000FF"><u>[http://v3.espacenet.com/searchResults?NUM=GB2456503A&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false GB2456503A]</u></font>
 +
|Using global cell identifier for handover in a combined femto-cell/macro-cell environment
 +
|When large number of femto cells compared to the number of macro cells is present, it is not possible to ensure that all the femto cells within the coverage area of a macro cell have individual and different frequencies and scrambling codes. So in a combined femto cell-macro cell environment, the macro cell RNC will be unable to determine, from the measurement report received from the UE, which cell (either a femto cell or macro cell) was measured.
 +
|A method is provided which includes a network element for a cellular communication system, network element comprises a receiver for receiving a message that comprises a measurement report from a wireless communication unit. The network element further comprises signal processing logic, operably coupled to the receiver, for processing the received measurement report and extracting a global cell identifier therefrom, so the inventive concept provides an improvement to the use of measurement reports, which may be used to facilitate handover between cells in a cellular communication system.
 +
|-valign = "top"
 
|}
 
|}
−
Click '''[[Media:Doublyfed_induction_generator1.xls| here]]''' to view the detailed analysis sheet for doubly-fed induction generators patent analysis.
+
* [[media:samplefemtocell.xls|Click here to download excel sheet of sample patent]]
  
 
===Article Analysis===
 
===Article Analysis===
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
−
|align = "center" bgcolor = "#4F81BD" width="105"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Dolcera Summary'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Dolcera Summary'''</font>
 
|-valign="top"
 
|-valign="top"
−
|align = "center" bgcolor = "#DCE6F1"|1
+
|align = "center" bgcolor = "#DBE5F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1709031&queryText=Study+on+the+Control+of+DFIG+and+Its+Responses+to+Grid+Disturbances&openedRefinements=*&searchField=Search+All Study on the Control of DFIG and its Responses to Grid Disturbances ]</u></font>
+
|bgcolor = "#DBE5F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5723085 Cognitive Femtocell]</font>
−
|align = "center" bgcolor = "#DCE6F1"|01/01/06
+
|bgcolor = "#DBE5F1"|Mar. 2011
−
|bgcolor = "#DCE6F1"|Power Engineering Society General Meeting, 2006. IEEE  
+
|bgcolor = "#DBE5F1"|IEEE Vehicular Technology Magazine
−
|bgcolor = "#DCE6F1"|Presented dynamic model of the DFIG, including mechanical model, generator model, and PWM voltage source converters. Vector control strategies adapted for both the RSC and GSC to control speed and reactive power independently. Control designing methods, such as pole-placement method and the internal model control are used. MATLAB/Simulink is used for simulation.  
+
|bgcolor = "#DBE5F1"|Because of the fact that femtocells can access a resource, sufficiently and locally, to known users with higher throughput, considerable attention has been devoted to the potential cognitive femtocell to allow for higher capacity and intelligent coverage, with guaranteed quality of service (QoS) for future indoor service. Cognitive femtocell is presented as a solution for spectrum-scarcity problems and local-convergence demands for indoor network applications. To control the data packet delivery between the macrocell and cognitive femtocell, A developed gateway broadband router based on novel cross-layer management optimization is used.
 
|-valign="top"
 
|-valign="top"
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1649950&queryText=Application+of+Matrix+Converter+for+Variable+Speed+Wind+Turbine+Driving+an+Doubly+Fed+Induction+Generator&openedRefinements=*&searchField=Search+All Application of Matrix Converter for Variable Speed Wind Turbine Driving an Doubly Fed Induction Generator ]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5734795 Interference Analysis for Femtocell Deployment in OFDMA Systems Based on Fractional Frequency Reuse]</font>
−
|align = "center"|05/23/06
+
|Mar. 2011
−
|Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006.
+
|Communications IEEE  Letters
−
|A matrix converter is replaced with back to back converter in a variable speed wind turbine using doubly fed induction generator. Stable operation is achieved by stator flux oriented control technique and the system operated in both sub and super synchronous modes, achieved good results.  
+
|A method of optimal power allocation for femtocells with different orthogonal subbands, based on analysis of macrocell interferences is presented.
 
|-valign="top"
 
|-valign="top"
−
|align = "center" bgcolor = "#DCE6F1"|3
+
|align = "center" bgcolor = "#DBE5F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4778305&queryText=Optimal+Power+Control+Strategy+of+Maximizing+Wind+Energy+Tracking+and+Conversion+for+VSCF+Doubly+Fed+Induction+Generator+System&openedRefinements=*&searchField=Search+Al Optimal Power Control Strategy of Maximizing Wind Energy Tracking and Conversion for VSCF Doubly Fed Induction Generator System ]</u></font>
+
|bgcolor = "#DBE5F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5688255 On-Demand Resource-Sharing Mechanism Design in Two-Tier OFDMA Femtocell Networks]</font>
−
|align = "center" bgcolor = "#DCE6F1"|08/14/06
+
|bgcolor = "#DBE5F1"|Mar. 2011
−
|bgcolor = "#DCE6F1"|Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
+
|bgcolor = "#DBE5F1"|IEEE Vehicular Technology Society
−
|bgcolor = "#DCE6F1"|Proposed a new optimal control strategy of maximum wind power extraction strategies and testified by simulation. The control algorithm also used to minimize the losses in the generator. The dual passage excitation control strategy is applied to decouple the active and reactive powers. With this control system, the simulation results show the good robustness and high generator efficiency is achieved.  
+
|bgcolor = "#DBE5F1"|Discussed two main design issues in orthogonal frequency-division multiple-access (OFDMA) femtocell networks, i.e., resource sharing and femtocell access control. More comprehensive perspective on self-organizing femtocell networks, where users optimize their performance in a distributed manner is presented.
 
|-valign="top"
 
|-valign="top"
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://docs.google.com/viewer?a=v&q=cache:HqaFsMBhchcJ:iris.elf.stuba.sk/JEEEC/data/pdf/3_108-8.pdf+A+TORQUE+TRACKING+CONTROL+ALGORITHM+FOR+DOUBLY–FED+INDUCTION+GENERATOR&hl=enπd=bl&srcid=ADGEESgbHXoAbKe4O7b5DnykDc7h_LaHwCMIhkVrGX_whx4iUuE4Mc-3Rfq1DyW_h A Torque Tracking Control algorithm for Doubly–fed Induction Generator ]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5606178 Open vs. Closed Access Femtocells in the Uplink]</font>
−
|align = "center"|01/01/08
+
|Dec. 2010
−
|Journal of Electrical Engineering
+
|IEEE Transactions on Wireless Communications
−
|Proposed a torque tracking control algorithm for Doubly fed induction generator using PI controllers. It is achieved by controlling the rotor currents and using a stator voltage vector reference frame.
+
|Since open access deployment  provides an inexpensive way to expand their network capabilities, so it would be preferred by the network operator whereas the femtocell owner would prefer closed access, in order to keep the femtocell<nowiki>’</nowiki>s capacity and backhaul to himself, but best approach depends heavily on whether the multiple access scheme is orthogonal (TDMA or OFDMA, per subband) or non-orthogonal (CDMA)
 
|-valign="top"
 
|-valign="top"
−
|align = "center" bgcolor = "#DCE6F1"|5
+
|align = "center" bgcolor = "#DBE5F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4651578&queryText=Fault+Ride+Through+Capability+Improvement+Of+Wind+Farms+Usind+Doubly+Fed+Induciton+Generator&openedRefinements=*&searchField=Search+All Fault Ride Through Capability Improvement Of Wind Farms Using Doubly Fed Induction Generator ]</u></font>
+
|bgcolor = "#DBE5F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5646338 Robust Transmission and Interference Management For Femtocells with Unreliable Network Access]</font>
−
|align = "center" bgcolor = "#DCE6F1"|09/04/08
+
|bgcolor = "#DBE5F1"|Dec. 2010
−
|bgcolor = "#DCE6F1"|Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
+
|bgcolor = "#DBE5F1"| IEEE Journal on Selected Areas in Communications
−
|bgcolor = "#DCE6F1"|An active diode bridge crowbar switch presented to improve fault ride through capability of DIFG. Showed different parameters related to crowbar such a crowbar resistance, power loss, temperature and time delay for deactivation during fault.  
+
|bgcolor = "#DBE5F1"|Since each femtocell is served by a home base station (HBS) that is connected to the macrocell base station (BS) via an unreliable network access link, such as DSL followed by the Internet, A scenario with a single macrocell and a single femtocell is presented, and is then extended to include multiple macrocells and femtocells, both with standard single-cell processing and with multicell processing (or network MIMO). Two main issues are presented regarding uplink channel: (i) Interference management between femto and macrocells; (ii) Robustness to uncertainties on the quality of the femtocell (HBSto-BS) access link.
 
|-
 
|-
 
|}
 
|}
−
Click '''[[Media:Doublyfed_induction_generators1.xls| here]]''' to view the detailed analysis sheet for doubly-fed induction generators article analysis.
+
 
−
<br>
+
 
===Top Cited Patents===
 
===Top Cited Patents===
 +
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
−
|align = "center" bgcolor = "#4F81BD" width="105"|<font color="#FFFFFF">'''Publication Date'''<br>(mm/dd/yyyy)</font>
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date<br>(mm/dd/yy)'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citation Count'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citation Count'''</font>
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5289041.PN.&OS=PN/5289041&RS=PN/5289041 US5289041]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070097939%22.PGNR.&OS=DN/20070097939&RS=DN/20070097939 US20070097939A1]</font>
−
|align = "center" bgcolor = "#DCE6F1"|02/22/94
+
|align = "center" bgcolor = "#DCE6F1"|05/03/07
−
|bgcolor = "#DCE6F1"|US Windpower
+
|bgcolor = "#DCE6F1"|Ericsson
−
|bgcolor = "#DCE6F1"|Speed control system for a variable speed wind turbine
+
|bgcolor = "#DCE6F1"|Automatic configuration of pico radio base station
−
|align = "center" bgcolor = "#DCE6F1"|80
+
|align = "center" bgcolor = "#DCE6F1"|60
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=4982147.PN.&OS=PN/4982147&RS=PN/4982147 US4982147]</u></font>
+
|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070254620%22.PGNR.&OS=DN/20070254620&RS=DN/20070254620 US20070254620A1]</font>
−
|align = "center"|01/01/91
+
|align = "center"|11/01/07
−
|Oregon State
+
|Ericsson
−
|Power factor motor control system
+
|Dynamic building of monitored set
−
|align = "center"|62
+
|align = "center"|33
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5028804.PN.&OS=PN/5028804&RS=PN/5028804 US5028804]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080132239%22.PGNR.&OS=DN/20080132239&RS=DN/20080132239 US20080132239A1]</font>
−
|align = "center" bgcolor = "#DCE6F1"|07/02/91
+
|align = "center" bgcolor = "#DCE6F1"|06/05/08
−
|bgcolor = "#DCE6F1"|Oregon State
+
|bgcolor = "#DCE6F1"|Kineto Wireless
−
|bgcolor = "#DCE6F1"|Brushless doubly-fed generator control system
+
|bgcolor = "#DCE6F1"|Method and apparatus to enable hand-in for femtocells
−
|align = "center" bgcolor = "#DCE6F1"|51
+
|align = "center" bgcolor = "#DCE6F1"|20
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5239251.PN.&OS=PN/5239251&RS=PN/5239251 US5239251]</u></font>
+
|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050144647%22.PGNR.&OS=DN/20050144647&RS=DN/20050144647 US20050144647A1]</font>
−
|align = "center"|08/24/93
+
|align = "center"|06/30/05
−
|Oregon State
+
|Mordechai Zussman (Inventor)
−
|Brushless doubly-fed motor control system
+
|Wireless provider monitoring of catv segment
−
|align = "center"|49
+
|align = "center"|17
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6856038.PN.&OS=PN/6856038&RS=PN/6856038 US6856038]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070270152%22.PGNR.&OS=DN/20070270152&RS=DN/20070270152 US20070270152A1]</font>
−
|align = "center" bgcolor = "#DCE6F1"|02/15/05
+
|align = "center" bgcolor = "#DCE6F1"|11/22/07
−
|bgcolor = "#DCE6F1"|Vestas Wind Systems
+
|bgcolor = "#DCE6F1"|Ericsson
−
|bgcolor = "#DCE6F1"|Variable speed wind turbine having a matrix converter
+
|bgcolor = "#DCE6F1"|Access control in a mobile communication system
−
|align = "center" bgcolor = "#DCE6F1"|43
+
|align = "center" bgcolor = "#DCE6F1"|16
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|6
 
|align = "center"|6
−
|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=1999029034 WO1999029034]</u></font>
+
|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080261602%22.PGNR.&OS=DN/20080261602&RS=DN/20080261602 US20080261602A1]</font>
−
|align = "center"|06/10/99
+
|align = "center"|10/23/08
−
|Asea Brown
+
|Qualcomm
−
|A method and a system for speed control of a rotating electrical machine with flux composed of two quantities
+
|Backhaul network for femto base stations
−
|align = "center"|36
+
|align = "center"|12
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=1999019963 WO1999019963]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080076425%22.PGNR.&OS=DN/20080076425&RS=DN/20080076425 US20080076425A1]</font>
−
|align = "center" bgcolor = "#DCE6F1"|04/22/99
+
|align = "center" bgcolor = "#DCE6F1"|03/27/08
−
|bgcolor = "#DCE6F1"|Asea Brown
+
|bgcolor = "#DCE6F1"|Kineto Wireless
−
|bgcolor = "#DCE6F1"|Rotating electric machine
+
|bgcolor = "#DCE6F1"|Method and apparatus for resource management
−
|align = "center" bgcolor = "#DCE6F1"|36
+
|align = "center" bgcolor = "#DCE6F1"|11
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|8
 
|align = "center"|8
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7015595.PN.&OS=PN/7015595&RS=PN/7015595 US7015595]</u></font>
+
|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080244148%22.PGNR.&OS=DN/20080244148&RS=DN/20080244148 US20080244148A1]</font>
−
|align = "center"|03/21/06
+
|align = "center"|10/02/08
−
|Vestas Wind Systems
+
|Go2Call.com
−
|Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control
+
|VoIP enabled femtocell with a USB transceiver station
−
|align = "center"|34
+
|align = "center"|8
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=4763058.PN.&OS=PN/4763058&RS=PN/4763058 US4763058]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090040972%22.PGNR.&OS=DN/20090040972&RS=DN/20090040972 US20090040972A1]</font>
−
|align = "center" bgcolor = "#DCE6F1"|08/09/88
+
|align = "center" bgcolor = "#DCE6F1"|02/12/09
−
|bgcolor = "#DCE6F1"|Siemens
+
|bgcolor = "#DCE6F1"|Julius Robson (Inventor)
−
|bgcolor = "#DCE6F1"|Method and apparatus for determining the flux angle of rotating field machine or for position-oriented operation of the machine
+
|bgcolor = "#DCE6F1"|Radio resource allocation for cellular wireless networks
−
|align = "center" bgcolor = "#DCE6F1"|32
+
|align = "center" bgcolor = "#DCE6F1"|7
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|10
 
|align = "center"|10
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7095131.PN.&OS=PN/7095131&RS=PN/7095131 US7095131]</u></font>
+
|<font color="#0000FF">[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080305801%22.PGNR.&OS=DN/20080305801&RS=DN/20080305801 US20080305801A1]</font>
−
|align = "center"|08/22/06
+
|align = "center"|12/11/08
−
|General Electric
+
|Lucent Technologies
−
|Variable speed wind turbine generator
+
|Method and apparatus to allow hand-off from a macrocell to a femtocell
−
|align = "center"|25
+
|align = "center"|7
−
|-
+
|-valign = "top"
 
|}
 
|}
 +
 
===Top Cited Articles===
 
===Top Cited Articles===
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|width = "38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citations Count'''</font>
 
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citations Count'''</font>
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|1
 
|align = "center" bgcolor = "#DCE6F1"|1
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=502360 Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4623708 Femtocell networks: a survey]</font>
−
|align = "center" bgcolor = "#DCE6F1"|May. 1996
+
|align = "center" bgcolor = "#DCE6F1"|Sep. 2008
−
|bgcolor = "#DCE6F1"|IEEE Proceedings Electric Power Applications
+
|bgcolor = "#DCE6F1"|IEEE Communications Magazine
−
|align = "center" bgcolor = "#DCE6F1"|906
+
|align = "center" bgcolor = "#DCE6F1"|272
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|2
 
|align = "center"|2
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=999610 Doubly fed induction generator systems for wind turbines]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4394515 Performance of Macro- and Co-Channel Femtocells in a Hierarchical Cell Structure]</font>
−
|align = "center"|May. 2002
+
|align = "center"|Sep. 2007
−
|IEEE Industry Applications Magazine
+
|IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
−
|align = "center"|508
+
|align = "center"|93
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|3
 
|align = "center" bgcolor = "#DCE6F1"|3
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=1198317 Dynamic modeling of doubly fed induction generator wind turbines]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4394281 Effects of User-Deployed, Co-Channel Femtocells on the Call Drop Probability in a Residential Scenario]</font>
−
|align = "center" bgcolor = "#DCE6F1"|May. 2003
+
|align = "center" bgcolor = "#DCE6F1"|Sep. 2007
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Power Systems
+
|bgcolor = "#DCE6F1"|IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
−
|align = "center" bgcolor = "#DCE6F1"|274
+
|align = "center" bgcolor = "#DCE6F1"|75
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1201089 Modeling and control of a wind turbine driven doubly fed induction generator]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5165314 Uplink capacity and interference avoidance for two-tier femtocell networks]</font>
−
|align = "center"|Jun. 2003
+
|align = "center"|Jul. 2009
−
|IEEE Transactions on Energy Conversion
+
|IEEE Transactions on Wireless Communications
−
|align = "center"|271
+
|align = "center"|62
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|5
 
|align = "center" bgcolor = "#DCE6F1"|5
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/iel5/60/30892/01432858.pdf?arnumber=1432858 Ride through of wind turbines with doubly-fed induction generator during a voltage dip]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5277454 OFDMA femtocells: A roadmap on interference avoidance]</font>
−
|align = "center" bgcolor = "#DCE6F1"|Jun. 2005
+
|align = "center" bgcolor = "#DCE6F1"|Sep. 2009
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
+
|bgcolor = "#DCE6F1"|IEEE Communications Magazine
−
|align = "center" bgcolor = "#DCE6F1"|246
+
|align = "center" bgcolor = "#DCE6F1"|55
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|6
 
|align = "center"|6
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=970114 Dynamic modeling of a wind turbine with doubly fed induction generator]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4644120 WiMAX femtocells: a perspective on network architecture, capacity, and coverage]</font>
−
|align = "center"|July. 2001
+
|align = "center"|Oct. 2008
−
|IEEE Power Engineering Society Summer Meeting, 2001
+
|IEEE Communications Magazine
−
|align = "center"|196
+
|align = "center"|55
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|7
 
|align = "center" bgcolor = "#DCE6F1"|7
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1597345 Modeling of the wind turbine with a doubly fed induction generator for grid integration studies]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://onlinelibrary.wiley.com/doi/10.1002/bltj.20292/abstract An overview of the femtocell concept]</font>
−
|align = "center" bgcolor = "#DCE6F1"|Mar. 2006
+
|align = "center" bgcolor = "#DCE6F1"|May. 2008
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
+
|bgcolor = "#DCE6F1"|Bell Labs Technical Journal
−
|align = "center" bgcolor = "#DCE6F1"|174
+
|align = "center" bgcolor = "#DCE6F1"|53
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|8
 
|align = "center"|8
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=543631 A doubly fed induction generator using back-to-back PWM converters supplying an isolated load from a variable speed wind turbine]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4547576 Self-optimization of coverage for femtocell deployments]</font>
−
|align = "center"|Sept. 1996
+
|align = "center"|Apr. 2008
−
|IEEE Proceedings Electric Power Applications
+
|Wireless Telecommunications Symposium, 2008
−
|align = "center"|150
+
|align = "center"|49
−
|-valign="top"
+
|-valign = "top"
 
|align = "center" bgcolor = "#DCE6F1"|9
 
|align = "center" bgcolor = "#DCE6F1"|9
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=1432853 Doubly fed induction generator model for transient stability analysis]</u></font>
+
|bgcolor = "#DCE6F1"|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5200991 Power control in two-tier femtocell networks]</font>
−
|align = "center" bgcolor = "#DCE6F1"|Jun. 2005
+
|align = "center" bgcolor = "#DCE6F1"|Aug. 2008
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
+
|bgcolor = "#DCE6F1"|IEEE Transactions on Wireless Communications
−
|align = "center" bgcolor = "#DCE6F1"|106
+
|align = "center" bgcolor = "#DCE6F1"|34
−
|-valign="top"
+
|-valign = "top"
 
|align = "center"|10
 
|align = "center"|10
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1677655 Control of a doubly fed induction generator in a wind turbine during grid fault ride-through]</u></font>
+
|<font color="#0000FF">[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5277462 Interference management and performance analysis of UMTS/HSPA+ femtocells]</font>
−
|align = "center"|Sept. 2006
+
|align = "center"|Sep. 2009
−
|IEEE Transactions on Energy Conversion
+
|IEEE Communications Magazine
−
|align = "center"|112
+
|align = "center"|26
−
|-
+
|-valign = "top"
 
|}
 
|}
  
−
===White Space Analysis===
+
==Patent Ranking==
−
* White-space analysis provides the technology growth and gaps in the technology where further R&D can be done to gain competitive edge and to carry out incremental innovation.
+
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
* Dolcera provides White Space Analysis in different  dimensions. Based on Product, Market, Method of Use, Capabilities or Application or Business Area and defines the exact categories within the dimension.
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''S.no'''</font>
−
* Below table shows a sample representation of white space analysis for controlling DFIG parameters with converters, based on the sample analysis.
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
−
{|border="2" cellspacing="0" cellpadding="14" width="20%"
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''US Class (primary)'''</font>
−
| style="background-color:#99ccff;"| <center>'''White Space of converters used to control'''</center>
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Title'''</font>
−
| style="background-color:#99ccff;"| <center>'''Active power'''</center>
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Publication Year'''</font>
−
| style="background-color:#99ccff;"| <center>'''Reactive Power'''</center>
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Priority Year(s)'''</font>
−
| style="background-color:#99ccff;"| <center>'''Decoupled P-Q control'''</center>
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Legal Status'''</font>
−
| style="background-color:#99ccff;"| <center>'''Field oriented control'''</center>
+
|align = "center" bgcolor = "#538ED5"|<font color="#FFFFFF">'''Rank'''</font>
−
| style="background-color:#99ccff;"| <center>'''Direct torque control'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Speed control'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Frequency Control'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Pitch control'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''PWM Technique'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Low voltage ride through'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Network fault/Grid fault'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Symmetrical and Asymmetrical Faults'''</center>
+
−
| style="background-color:#99ccff;"| <center>'''Temp control'''</center>
+
−
 
+
 
|-
 
|-
−
| style="background-color:#99ccff;"| <center>'''Grid Side active converters'''</center>
+
|align = "center" bgcolor = "#C5D9F1"|1
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052394%22.PGNR.&OS=DN/20070052394&RS=DN/20070052394 US20070052394A1]
+
|align = "center" bgcolor = "#C5D9F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7855983.PN.&OS=PN/7855983&RS=PN/7855983 US7855983B2]</u></font>
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060028025%22.PGNR.&OS=DN/20060028025&RS=DN/20060028025 US20060028025A1]
+
|align = "center" bgcolor = "#C5D9F1"|370280
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100148508%22.PGNR.&OS=DN/20100148508&RS=DN/20100148508 US20100148508A1]
+
|bgcolor = "#C5D9F1"|Time Division Duplex Front End Module
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100133816%22.PGNR.&OS=DN/20100133816&RS=DN/20100133816 US20100133816A1]
+
|align = "center" bgcolor = "#C5D9F1"|2010
−
[http://v3.espacenet.com/searchResults?NUM=EP2166226A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2166226A1]
+
|align = "center" bgcolor = "#C5D9F1"| 2006 <nowiki>|</nowiki> 2007 <nowiki>|</nowiki> 2007 <nowiki>|</nowiki> 2008
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070132248%22.PGNR.&OS=DN/20070132248&RS=DN/20070132248 US20070132248A1]
+
|bgcolor = "#C5D9F1"|Patented Case
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052394%22.PGNR.&OS=DN/20070052394&RS=DN/20070052394 US20070052394A1]
+
|align = "center" bgcolor = "#C5D9F1"|3
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100096853%22.PGNR.&OS=DN/20100096853&RS=DN/20100096853 US20100096853A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100114388%22.PGNR.&OS=DN/20100114388&RS=DN/20100114388 US20100114388A1]
+
−
|
+
−
|
+
−
| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008938%22.PGNR.&OS=DN/20090008938&RS=DN/20090008938 US20090008938A1]
+
−
| style="background-color:#ffffff;"| [http://www.wipo.int/pctdb/en/wo.jsp?WO=2010079234 WO2010079234A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090230689%22.PGNR.&OS=DN/20090230689&RS=DN/20090230689 US20090230689A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090206606%22.PGNR.&OS=DN/20090206606&RS=DN/20090206606 US20090206606A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070024247%22.PGNR.&OS=DN/20070024247&RS=DN/20070024247 US20070024247A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090206606%22.PGNR.&OS=DN/20090206606&RS=DN/20090206606 US20090206606A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080129050%22.PGNR.&OS=DN/20080129050&RS=DN/20080129050 US20080129050A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100156192%22.PGNR.&OS=DN/20100156192&RS=DN/20100156192 US20100156192A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070182383%22.PGNR.&OS=DN/20070182383&RS=DN/20070182383 US20070182383A1]
+
−
| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100002475%22.PGNR.&OS=DN/20100002475&RS=DN/20100002475 US20100002475A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080296898%22.PGNR.&OS=DN/20080296898&RS=DN/20080296898 US20080296898A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070273155%22.PGNR.&OS=DN/20070273155&RS=DN/20070273155 US20070273155A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070278797%22.PGNR.&OS=DN/20070278797&RS=DN/20070278797 US20070278797A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052244%22.PGNR.&OS=DN/20070052244&RS=DN/20070052244 US20070052244A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070024059%22.PGNR.&OS=DN/20070024059&RS=DN/20070024059 US20070024059A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060238929%22.PGNR.&OS=DN/20060238929&RS=DN/20060238929 US20060238929A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070177314%22.PGNR.&OS=DN/20070177314&RS=DN/20070177314 US20070177314A1]
+
−
| style="background-color:#ffffff;"|[http://v3.espacenet.com/searchResults?NUM=EP2166226A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2166226A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090121483%22.PGNR.&OS=DN/20090121483&RS=DN/20090121483 US20090121483A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008938%22.PGNR.&OS=DN/20090008938&RS=DN/20090008938 US20090008938A1]
+
 
|-
 
|-
−
| style="background-color:#99ccff;"| <center>'''Grid side passive converters'''</center>
+
|align = "center"|2
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030151259%22.PGNR.&OS=DN/20030151259&RS=DN/20030151259 US20030151259A1]
+
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7613444.PN.&OS=PN/7613444&RS=PN/7613444 US7613444B2]</u></font>
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030151259%22.PGNR.&OS=DN/20030151259&RS=DN/20030151259 US20030151259A1]
+
|align = "center"|455403
−
|
+
|Dynamic Building Of Monitored Set
−
|
+
|align = "center"|2009
−
|
+
|align = "center"|2006
−
|
+
|Patented Case
−
|
+
|align = "center"|1
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030151259%22.PGNR.&OS=DN/20030151259&RS=DN/20030151259 US20030151259A1]
+
−
|
+
−
|
+
−
|
+
−
|
+
−
|
+
−
 
+
 
|-
 
|-
−
| style="background-color:#99ccff;"| <center>'''Rotor side converter'''</center>
+
|align = "center" bgcolor = "#C5D9F1"|3
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100142237%22.PGNR.&OS=DN/20100142237&RS=DN/20100142237 US20100142237A1]
+
|align = "center" bgcolor = "#C5D9F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110105129%22.PGNR.&OS=DN/20110105129&RS=DN/20110105129 US20110105129A1]</u></font>
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052394%22.PGNR.&OS=DN/20070052394&RS=DN/20070052394 US20070052394A1]
+
|align = "center" bgcolor = "#C5D9F1"|455443
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060028025%22.PGNR.&OS=DN/20060028025&RS=DN/20060028025 US20060028025A1]
+
|bgcolor = "#C5D9F1"|Femtocell Search Method For Macro To Femto Handover
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100096853%22.PGNR.&OS=DN/20100096853&RS=DN/20100096853 US20100096853A1]
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|align = "center" bgcolor = "#C5D9F1"|2011
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100148508%22.PGNR.&OS=DN/20100148508&RS=DN/20100148508 US20100148508A1]
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|align = "center" bgcolor = "#C5D9F1"| 2008 <nowiki>|</nowiki> 2008 <nowiki>|</nowiki> 2010
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100133816%22.PGNR.&OS=DN/20100133816&RS=DN/20100133816 US20100133816A1]
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|bgcolor = "#C5D9F1"|Docketed New Case - Ready for Examination
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070132248%22.PGNR.&OS=DN/20070132248&RS=DN/20070132248 US20070132248A1]
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|-
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100114388%22.PGNR.&OS=DN/20100114388&RS=DN/20100114388 US20100114388A1]
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|
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|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110047011%22.PGNR.&OS=DN/20110047011&RS=DN/20110047011 US20110047011A1]</u></font>
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|
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|align = "center"|7050141
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| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008938%22.PGNR.&OS=DN/20090008938&RS=DN/20090008938 US20090008938A1]
+
|Incentives To Optimize The Performance Of Femto Cell Groups
−
| style="background-color:#ffffff;"|[http://www.wipo.int/pctdb/en/wo.jsp?WO=2010079234 WO2010079234A1]
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|align = "center"|2011
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090230689%22.PGNR.&OS=DN/20090230689&RS=DN/20090230689 US20090230689A1]
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|align = "center"|2009
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070024247%22.PGNR.&OS=DN/20070024247&RS=DN/20070024247 US20070024247A1]
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|Docketed New Case - Ready for Examination
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| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080129050%22.PGNR.&OS=DN/20080129050&RS=DN/20080129050 US20080129050A1]
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|-
 
|-
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| style="background-color:#99ccff;"| <center>'''Matrix converters'''</center>
 
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| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220020079706%22.PGNR.&OS=DN/20020079706&RS=DN/20020079706 US20020079706A1]
 
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|}
  
−
== Dolcera Dashboard ==
 
−
[[Image:dashboard_features.png|center|750px|]]
 
  
−
'''Dashboard Link'''<br>
+
 
 +
'''Disclaimer:''' Patent ranking has been done according to the following logic:
 +
*'''Rank-1:'''  Granted +  Femtocell related (claims)
 +
*'''Rank-2''': Published + Femtocell related (claims)
 +
*'''Rank-3''':  Femtocell related (Full spec )
 +
*'''Rank-4''': May be relevant
 +
*'''Rank-5''': Abandoned or Expired
 +
 
 +
 
 +
 
 +
==Products==
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|'''[http://client.dolcera.com/dashboard/dashboard.html?workfile_id=825 Doubly Fed Induction Generator - Dashboard] '''
+
|width="38" align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S. No.'''</font>
−
|width="100"|[[Image:dashboard_thumb.png|center|100px|]]
+
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Product'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Specification'''</font>
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|1
 +
|bgcolor = "#DBE5F1"|[http://www.att.com/ AT&T]
 +
|bgcolor = "#DBE5F1"|[[Image:at&t.png|thumb|100px|[http://www.wireless.att.com/learn/why/3gmicrocell/ AT&T 3G MicroCell]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|'''Power Supply:''' 100-120 VAC, 15 W; 12 VDC, 1.25 A Output. '''Status Indicators:''' Power, Ethernet, GPS, <br>Computer, 3G. '''Dimensions (H x D x W):''' 8.5 in.x6.3 in.x1.5 in. (at top), 4 in. (at legs). '''Unit Weight:''' 1 lb 2 ounces (AC power adapter not included). '''Ambient Temperature Range:''' 0° to 38°C
 +
|-
 +
|align = "center"|2
 +
|[http://www.cisco.com/ Cisco]
 +
|[[Image:cisco.png|thumb|100px|[http://www.cisco.com/en/US/prod/collateral/video/ps8611/ps10456/ps10465/ps10962/data_sheet_c78-597338.html Cisco 3G Femtocell]]]
 +
|align = "justify"|'''Front panel indicators: '''Power, Ethernet, GPS, PC, 3G. '''GPS antenna extender:''' Optional external GPS antenna input. '''Ethernet connection:''' RJ-45, WAN connection with broadband modem. '''PC connection:''' RJ-45, LAN connection with PC or network router. '''Reboot button:''' Restarts device initialization and authentication. '''UMTS bands:''' 1900 MHz and 850 MHz (Bands 2 and 5). '''Output power:''' 5mW. '''HSDPA aggregate throughput:''' Up to 3.6 Mbps. '''AC power adapter:''' Input: 90-120VAC; '''Maximum output:''' 12V, 1.67A, 20W. '''Temperature range: '''0° to 45°C (32° to 113°F). '''Dimensions: '''7.0 in x 8.0 in. x 2.0 in. '''Weight: '''1.0 lb
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|3
 +
|bgcolor = "#DBE5F1"|[http://www.airwalkcom.com/ AirWalk Communications]
 +
|bgcolor = "#DBE5F1"|[[Image:Airwalk.png|thumb|100px|[http://www.airwalkcom.com/products/consumer-femtocell.html EdgePoint Femtocell]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|'''Dual Mode: '''EVDO and 1xRTT, Ethernet backhaul, Self-optimizing, Plug-and-play installation, Single band 800/1900 MHz, 2G and 3G handset compatibility, IOS/SIP interface
 +
|-
 +
|align = "center"|4
 +
|[http://www.airwalkcom.com/ AirWalk Communications]
 +
|[[Image:Airwalkpro.png|thumb|100px|[http://www.airwalkcom.com/products/enterprise-femtocells.html EdgePoint PRO Enterprise Femtocell]]]
 +
|align = "justify"|'''Dual-mode:''' CDMA 1xRTT and EVDO Rev. A (Rev B<nowiki>+</nowiki> capable) in one device, Integrated BTS, BSC, RN, RNC, PCF and O&M, Self-optimizing, Plug-and-play installation, Advanced handoff capability (clustering), 10/100 Ethernet backhaul, Single band 450/800/1900 MHz, 2G/3G handset compatibility, IOS or SIP/IMS core network compatibility
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|5
 +
|bgcolor = "#DBE5F1"|[http://www.airvana.org/ Airvana]
 +
|bgcolor = "#DBE5F1"|[[Image:airvanacdma.png|thumb|100px|[http://www.airvana.org/products/products_544.htm HubBub CDMA]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|Simultaneous 1xRTT and EV-DO Rev-A, Flat IP-based architecture, SIP/IMS Core Network Interface, Plug-and-Play Install, Automated Network Planner, Comprehensive Remote Management, Compatible with standard CDMA 1xRTT and EV-DO Rev-A handsets, Ethernet Backhaul
 +
|-
 +
|align = "center"|6
 +
|[http://www.airvana.org/ Airvana]
 +
|[[Image:airvanaumts.png|thumb|100px|[http://www.airvana.org/products/products_399.htm HubBub UMTS]]]
 +
|align = "justify"|'''RF output power: '''20 dBm, Supports 4 Simultaneous AMR Channels (voice calls), 7.2 Mbps HSDPA & 1.5 Mbps HSUPA, Range 50m to 200m, Ethernet Backhaul
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|7
 +
|bgcolor = "#DBE5F1"|[http://www.samsung.com/ Samsung]
 +
|bgcolor = "#DBE5F1"|[[Image:samsungcdma.png|thumb|100px|[http://www.samsung.com/global/business/telecommunication/productType.do?ctgry_group=11&ctgry_type=20 CDMA UbiCell]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|'''RF output power: '''Up to 50mW''', System Capacity:''' 1carrier / Omni, '''Traffic Channel: '''Up to 4 simultaneous users, '''Air Interface:''' CDMA2000 1X, '''Frequency: '''1.9GHz (SCS-26UC2), 800MHz (SCS-26UC3), Dual Band (SCS-26UC4),  '''Input Power:''' 00<nowiki>~</nowiki>250VAC, '''Network Interface:''' 10/100 Base-T Ethernet, '''Volume:''' 95 in<sup>3</sup> (1.5 Liters), '''Weight:''' 1.41 lb (640g), '''Operating Temperature: '''32°F to 113°F (0°C to 45°C), '''Dimension:''' 6.1 x 8.2 x 1.9 inch (154 x 208 x 47 mm, HWD)
 +
|-
 +
|align = "center"|8
 +
|[http://www.samsung.com/ Samsung]
 +
|[[Image:samsunghspa.png|thumb|100px|[http://www.samsung.com/global/business/telecommunication/brochureView.do?ctgry_group=11&ctgry_type=20&b2b_ctgry_file_seq=1 HSPA UbiCell]]]
 +
|align = "justify"|'''RF Output: '''Up to 20mW,''' System Capacity: '''1carrier / Omni, '''Traffic Channel:''' Up to 4 simultaneous users, '''Air Interface:''' WCDMA / HSPA, '''Frequency:''' 2.1GHz, '''Input Power: '''100<nowiki>~</nowiki>240VAC, '''Network Interface: '''10/100 Base-T Ethernet, '''Volume:''' 1.4 Liters, '''Weight:''' 600g, '''Operating Temperature:''' 0°C to 45°C, '''Dimension:''' 185 x 210 x 36 mm (HWD)
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|9
 +
|bgcolor = "#DBE5F1"|[http://www.ipaccess.com/en/ ip.access]
 +
|bgcolor = "#DBE5F1"|[[Image:ip.access.png|thumb|100px|[http://www.ipaccess.com/en/nano3G-enterprise-femtocells nano3G S8]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|'''RF output power:''' 5mW (<nowiki>+</nowiki>7dBm), '''UMTS bands: '''1,4,2/5, '''Simultaneous users:''' 8, '''Electrical power:''' <nowiki><</nowiki>8W, '''External antennas:''' No, '''Oscillator: VCTCXO''', '''NTP: Time stamp & sync''', '''Temp. range: '''0° to 40°C, '''Dimensions(mm):''' 193x171x53
 +
|-
 +
|align = "center"|10
 +
|[http://www.huawei.com/ Huawei]
 +
|[[Image:huewai.png|thumb|100px|[http://www.huawei.com/news/view.do?id=11241&cid=42 Huawei’s Home Media Center]]]
 +
|align = "justify"|'''RF output power: '''20mW,''' Traffic Channel: '''Up to 4 simultaneous users
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|11
 +
|bgcolor = "#DBE5F1"|[http://www.argela.com/ Argela]
 +
|bgcolor = "#DBE5F1"|[[Image:argela.png|thumb|100px|[http://www.argela.com/solutions.php?cid=femtocell&gclid=CMKKgoOX2KcCFYQc6wodpF5H9g Femtocell<sup>3G</sup>]]]
 +
|align = "justify" bgcolor = "#DBE5F1"|'''Radio frequency:''' UMTS FDD band I support, '''Transmit power:''' 23 dBm (200 mW) maximum, '''Cell radius:''' 200m maximum, '''Maximum active UEs:''' 8, Access control: Closed, Open, or Hybrid, '''UMTS services: '''12.2 kbps AMR for voice, 64 kbps video (128 kbps can be supported), PS data services at upto 384 kbps, HSDPA 14 Mbps downlink (limited by DSL speed), HSUPA 5.7 Mbps uplink (limited by DSL speed), '''Physical characteristics:''' Max power consumption of 10W during normal operation, 18cm x 11cm x 2.5cm, 12V DC supply, Weight 400g, RJ-45 10/100 Ethernet connection to the DSL CPE
 
|-
 
|-
 
|}
 
|}
−
*Flash Player is essential to view the Dolcera dashboard
 
  
 +
==Market Research==
 +
===Mobile Communication Problems===
 +
----
 +
* Parks Associates, commissioned by the Femto Forum, has conducted this custom consumer research in six nations: the U.S., the U.K., Germany, Spain, China, and Japan. The following chart illustrates the problem associated with mobile communication, from which we can conclude that China has severe problems in mobile based services.
 +
[[Image:Problems with Mobile Service.png|thumb|center|650px|[[media:Parks Associates Global Consumer Research Findings Jan 2011.pdf|'''Problems with Mobile Service''']]]]
 +
Source: [[media:Parks Associates Global Consumer Research Findings Jan 2011.pdf|'''Parks Associates''']]
  
 +
===Demand of Femtocells===
 +
----
 +
* From the above chart we can see that China has severe problems in mobile based services, therefore, the demand of femtocells is more in China.
 +
[[Image:Appeal of Femtocell.png|thumb|center|650px|[[media:Parks Associates Global Consumer Research Findings Jan 2011.pdf|'''Femtocell Demand Varies by Market(Q3 2010)''']]]]
 +
Source: [[media:Parks Associates Global Consumer Research Findingss Jan 2011.pdf|'''Parks Associates''']]
 +
 +
===Deployment and Commitments of Femtocell Service===
 +
----
 +
 +
* This chart exemplifies a historical representation of deployments and commitments, both of which have increased almost 300% within a year.
 +
[[Image:Deployment&Commitments.png|thumb|center|650px|[[media:Informa Femtocell Market Status Q1 2011.pdf|'''Femtocell Service Deployments & Commitments''']]]]
 +
 +
Source:[[media:Informa Femtocell Market Status Q1 2011.pdf|'''Informa Telecoms & Media''']]
 +
 +
===Market Forecast===
 +
----
 +
 +
*The following chart exemplifies Informa’s forecasts (January 2010) for femtocell access point shipments and users.
 +
[[Image:Market Forecast.png|thumb|center|650px|[[media:Informa Femtocell Market Status Q1 2011.pdf|'''Femtocell access point and user forecasts''']]]]
 +
 +
Source:[[media:Informa Femtocell Market Status Q1 2011.pdf|'''Informa Telecoms & Media''']]
 +
 +
The following table provides a summary of publicly announced statements, sorted by reverse chronological order. The table is followed by more information regarding each statement:     
 +
*Strategy Analytics expects femtocell access point shipments to reach 2 million during 2010 (Strategy    Analytics  –  November  2010). 
 +
*ABI research expects 1 million femtocells to have been shipped by the end of 2010,increasing to 54 million femtocell shipments during 2015. ABI  research estimates that 1.3 million femtocells have been shipped to operators from vendors during 2010. The estimate for femtocell shipments for  2011  is 3.8 million and 70 million for 2015(ABI  Research  –  September  2010). 
 +
*IDate has updated its femtocell market forecasts, with 11.7 million femtocell access point shipments during 2013, increasing to 23 million during 2014 (iDate – September 2010).
 +
*Alcatel Lucent has performed research on consumer attitudes to a variety of femtocell marketing propositions and forecasts more than 34 million femtocell users in the US, UK, Germany, Singapore and Taiwan by  2014, at which point the market will be worth  over €6 billion  (Alcatel Lucent– September 2010)
 +
*In-­Stat has published updated femtocell forecasts, and expects that worldwide annual enterprise femtocell revenue CAGR will be 125.7% from 2009-­2014 (In-­Stat - September 2010).
 +
*Dell’Oro expects estimates 1 million femtocell access points to ship this year, reaching 62 million during 2014, more than 80% of which will be WCDMA femtocells (Dell’Oro - August 2010).
 +
*iSuppli forecasts that shipments will rise to 1.9 million during 2010, up from 571,000  in 2009. A period of expansion then  will follow, with shipments reaching 7.2m units in 2011, up 289% from 2010. Shipments are forecast to rise by 232% to reach 23.9m units  in 2012 and by 657%  to hit 39.6m units in 2013.  (iSuppli - March 2010).
 +
*GIA projects the femtocell market to surpass 75.8 million by the year 2015, driven by the ongoing migration  of mobile operators from smaller access points to large base  stations. (Global Industry  Analysts - March 2010).
 +
Source:[[media:Informa Femtocell Market Status Q1 2011.pdf|'''Informa Telecoms & Media''']]
  
 
==Key Findings==
 
==Key Findings==
−
=== Major Players ===
+
<font size = "4">'''Note:''' </font><font color="#C00000"><font size = "4">Total 864 Sample patents were taken into consideration for analysis (Data upto 8th March 2011).</font></font>
−
* [http://www.vestas.com/ Vestas Wind Energy Systems] and [http://www.ge.com/ General Electric] are the major players in wind energy generation technology.
+
−
[[Image:Wind_Major_Players.png|center|thumb|700px|'''Major Players''']]
+
  
−
=== Key Patents ===
 
−
* The key patents in the field are held by [http://www.windpoweringamerica.gov/wind_installed_capacity.asp US Windpower], [http://www.oregon.gov/ENERGY/RENEW/Wind/windhome.shtml Oregon State] and [http://www.vestas.com/ Vestas Wind Energy Systems].
 
  
−
[[Image:wind_top_cited.png|center|thumb|700px|'''Key Patents''']]
+
----
  
−
=== IP Activity ===
+
* Qualcomm, Samsung and NEC are the major players in femtocells technology
−
* Patenting activity has seen a very high growth rate in the last two years.
+
* Key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
−
[[Image:ind_pat_act_3.png|center|thumb|700px|'''Year wise IP Activity''']]
+
* Patenting activity has seen a very high growth rate in the last two years.  
 +
* US and WO are very active in femtocell technology research.
  
−
=== Geographical Activity ===
+
===Major Players===
−
* USA, China, Germany, Spain, and India are very active in wind energy research.
+
----
−
[[Image:wind_geographical_act.png|center|thumb|700px|'''Geographical Activity''']]
+
* The following chart illustrates the '''Major Players''' in femtocells technology from which it can be concluded that the Qualcomm, Samsung and NEC are the major players in femtocells technology.
 +
[[Image:assigneefemto4.png|thumb|centre|1000px|'''Major Players''']]
  
−
=== Research Trend ===
 
−
* Around 86% patents are on controlling the doubly-fed induction generation(DFIG) which indicates high research activity going on in rating and controlling of the DFIG systems.
 
  
−
=== Issues in the Technology ===
+
===Key Patents===
−
* 86% of the patent on DFIG operation are focusing on grid connected mode of operation, suggesting continuous operation of the DFIG system during weak and storm winds, grid voltage sags, and grid faults are major issues in the current scenario.
+
----
 +
* The following chart illustrates the '''Key Patents''' in femtocells technology from which it can be concluded that the key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
  
−
[[Image:Windenergyanalysis.jpg|center|1200px|thumb|'''Problem Solution Mapping''']]
+
[[Image:patentcitingfemto2.png|thumb|centre|1000px|'''Key Patents''']]
  
−
=== Emerging Player ===
+
===IP Activity===
−
* [http://www.woodward.com/ Woodward] is a new and fast developing player in the field of DFIG technology. The company filed 10 patent applications in the field in year 2010, while it has no prior IP activity.
+
----
 +
* The following charts illustrate the '''Patent Publication/Priority''' activity in previous years from which it can be concluded that the Patenting activity has seen a very high growth rate since 2008.
 +
[[Image:publicationfemto2.png|thumb|centre|800px|'''IP Activity Based on Publication Years''']]
 +
[[Image:priorityfemto2.png|thumb|centre|800px|'''IP Activity Based on Priority Years''']]
 +
 
 +
===Geographical Activity===
 +
----
 +
* The following chart illustrates the '''Geographical Distribution''' of patents from which it can be concluded that the US and WO are very active in femtocell technology research.
 +
[[Image:familyfemtocell4.png|thumb|centre|1000px|'''Geographical Activity''']]
 +
*Others includes 13 Patents from Germany(DE), 8 Patents from South Korea(KR), 6 Patents from Austria(AT), 5 Patents from France(FR) and 2 Patents from Brazil(BR).
 +
 
 +
===Market Player Analysis===
 +
----
 +
 
 +
====Network Element Technology Mapping====
 +
----
 +
The following chart illustrates Network element technology mapping with top market players and drawn based on '''100 sample patents as given on the dashboard''' from which it can be concluded that significant work is being done on Femtocell access point. 
 +
[[Image:technology mapping.png|thumb|centre|830px|'''Femtocell Network Element Technology Mapping''']]
 +
 
 +
====Patent Activity Based on Priority Year====
 +
----
 +
The following chart illustrates Patent/Publication activity year by year for top market players from which it can be concluded that significant research activity has taken place in the years 2008 and 2009
 +
[[Image:priority yearf.png|thumb|centre|1020px|'''Patent Activity Based on Priority Year''']]
 +
 
 +
====Patent Activity Based on Publication Year====
 +
----
 +
The following chart illustrates Patent/Publication activity year by year for top market players from which it can be concluded that significant research activity has been published from 2009 onwards.
 +
[[Image:publication yearf.png|thumb|centre|1020px|'''Patent Activity Based on Publication year''']]
 +
 
 +
==Claim Mapping==
 +
===Process Flow===
 +
[[Image:dp1.jpg|centre|1000px]]
 +
===Sample claim charting===
 +
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''S.No.'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Claim Language'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Relevant Section in Femtocell Release'''</font>
 +
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Technical Comment'''</font>
 +
|-
 +
|align = "center" rowspan = "12"|1
 +
|align = "center" rowspan = "12"|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=2010082874 WO2010082874A1]</u></font>
 +
|align = "center" bgcolor = "#DBE5F1"|'''Claim1'''
 +
|bgcolor = "#DBE5F1"|'''4 Overview''' 3GPP TS 25.367 V9.5.0 (2010-12) '''Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)'''
 +
|align = "center" bgcolor = "#DBE5F1"|
 +
|-
 +
|A method performed in a communication system (100) by a device (120) that is communicatively coupled to the communication system, and where the communication system includes one or more closed subscriber group (CSG) cells, comprising: searching (505) for the one or more CSG cells; attempting (510) to access the one or more CSG cells; '''determining (515) whether access to the one or more CSG cells is granted; and updating (520) a CSG White List corresponding to the one or more CSG cells in which access is granted, where the CSG White List indicates to the device which of the one or more CSG cells the device is allowed to access.'''
 +
|To facilitate access control, a UE with CSG subscription would have an CSG whitelist, which contains one or more CSG Identities associated with the CSG cells on which the UE is allowed access.
 +
|UE is allowed access to HNB based on CSG whitelist
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|'''Claim2'''
 +
|align = "center" bgcolor = "#DBE5F1"|
 +
|bgcolor = "#DBE5F1"|
 +
|-
 +
|The method of claim 1 , where the communication system includes one or more of a Long Term Evolution (LTE) network or a Wideband Code Division Multiple Access/Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (WCDMA/UTRAN) and the one or more CSG cells includes one or more femto cells.
 +
|The claim is generic
 +
|HNB can be connected to any of the following networks like LTE, WCDMA/UTRAN etc.
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|'''Claim3'''
 +
|bgcolor = "#DBE5F1"|'''4 Overview''' 3GPP TS 25.367 V9.5.0 (2010-12) '''Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)'''
 +
|bgcolor = "#DBE5F1"|
 +
|-
 +
|'''The method of claim 1 , where the device includes the CSG White List'''
 +
|To facilitate access control, a UE with CSG subscription would have an CSG whitelist
 +
|To gain access UE must have CSG whitelist
 +
|-
 +
|rowspan = "2"|'''and the method is performed to update the CSG White List.'''
 +
|bgcolor = "#DBE5F1"|'''6.1 Manual CSG ID Selection''' 3GPP TS 25.367 V9.5.0 (2010-12) '''Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)'''
 +
|bgcolor = "#DBE5F1"|
 +
|-
 +
|Based on the outcome of a Location Registration procedure initiated on a CSG cell, the UE<nowiki>’</nowiki>s CSG whitelist is updated.
 +
|CSG whitelist is updated based on the process carried out by Location register
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|'''Claim4'''
 +
|bgcolor = "#DBE5F1"|'''6.1 Manual CSG ID Selection''' 3GPP TS 25.367 V9.5.0 (2010-12) '''Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)'''
 +
|bgcolor = "#DBE5F1"|
 +
|-
 +
|'''The method of claim 3, where the attempting comprises: attempting to access the one or more CSG cells, where one of the one or more CSG cells is not included in the CSG White List.'''
 +
|During manual CSG ID selection a UE is allowed to perform Location Registration procedure on a CSG cell whose CSD ID is not in the CSG whitelist.
 +
|CSG ID<nowiki>’</nowiki>s which are not included in CSG whitelist are allowed to access CSG cell after following a location register procedure
 +
|-
 +
|align = "center" bgcolor = "#DBE5F1"|'''Claim5'''
 +
|bgcolor = "#DBE5F1"|'''6.1 Manual CSG ID Selection''' 3GPP TS 25.367 V9.5.0 (2010-12) '''Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)'''
 +
|bgcolor = "#DBE5F1"|
 +
|-
 +
|'''The method of claim 1 , where the device includes a user equipment, and the method further comprises: updating the CSG White List corresponding to the one or more CSG cells in which access is denied.'''
 +
|During manual CSG ID selection a UE is allowed to perform Location Registration procedure on a CSG cell whose CSD ID is not in the CSG whitelist. Based on the outcome of a Location Registration procedure initiated on a CSG cell, the UE<nowiki>’</nowiki>s CSG whitelist is updated.
 +
|CSG whitelist is updated based on the process carried out by Location Registration procedure initiated on a CSG cell
 +
|-
 +
|}
 +
*Click [[Media:femtoclaim.xls|here]] to download the excel sheet.
 +
*Click [[Media:mobilityreq.pdf|here]] to download the release for 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2; (Release 9)
 +
 
 +
==Interactive Taxonomy==
 +
*''Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy''
 +
*''Click on the red arrow adjacent to the node name to view the content for that particular node in the dashboard''
 +
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 +
|<mm>[[femtocell10.mm|title Femtocell|border]]</mm>
 +
|}
 +
 
 +
==Dolcera Dashboard==
 +
''The Dashboard is Dolcera's visualization platform to present the organized patent landscape''
 +
*Best viewed in Internet explorer 6 and higher versions
 +
*To view dashboard you would require a flash player. Kindly install a flash player if its not installed in your system
 +
 
 +
[[Image:dbim.png|center|750px]]
 +
'''Dashboard Links'''
 +
 
 +
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 +
|'''[https://www.dolcera.com/auth/dashboard/dashboard.php?workfile_id=931 Femtocell-Network Category - Dashboard] '''
 +
|width="100"|[[Image:dashboard_thumb.png|center|100px|]]
 +
|-
 +
|'''[http://client.dolcera.com/dashboard/dashboard.html?workfile_id=969 Femtocell-Problem Solution Mapping of Handover Node- Dashboard] '''
 +
|width="100"|[[Image:dashboard_thumb.png|center|100px|]]
 +
|-
 +
|}
 +
*Note1: Use the following credentials to view the dashboard 1.1
 +
**Username: demo@dolcera.com
 +
**Password: demo123
 +
*<font size = "4">Note2: </font><font color="#FF0000"><font size = "4">A total of 100 patents were considered for the creation of the sample dashboard</font></font>
  
 
=<span style="color:#C41E3A">Like this report?</span>=
 
=<span style="color:#C41E3A">Like this report?</span>=
Line 1,128: Line 1,252:
 
|}
 
|}
 
<br>
 
<br>
 +
 
=References =
 
=References =
 
{|border="0" cellspacing="0" cellpadding="4" width="100%"
 
{|border="0" cellspacing="0" cellpadding="4" width="100%"
 
|-valign="top"
 
|-valign="top"
 
|'''Background References'''
 
|'''Background References'''
−
# [http://www.brighthub.com/environment/renewable-energy/articles/71440.aspx Wind Energy History]
+
# [http://www.tatarasystems.com/contentmgr/showdetails.php/id/444 Femtocell?]
−
# [[Media:windenergy.pdf| Wind Energy]]
+
# [http://www.tatarasystems.com/contentmgr/showdetails.php/id/465 Femtocells: Why Now?]
−
# [http://windeis.anl.gov/guide/basics/index.cfm Wind Energy Basics]
+
# [http://www.airvana.com/technology/femtocell-network-architecture/#Common_Elements_of_the_Femtocell_Network_Architecture Femtocell Network Architecture]  
−
# [http://www1.eere.energy.gov/windandhydro/wind_how.html#inside How Wind Turbines Work]
+
# [http://www.airvana.com/technology/femtozone-applications/#The_Seven_Unique_Traits_of_the_Femtocell The Seven Unique Traits of Femtocell]
−
# [http://www.windpowertv.com/forum/index.php?topic=18.0 Different types of wind turbines]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait1 Mobile/Home Network Bridging]
−
# [http://www.house-energy.com/Wind/Offshore-Onshore.htm Onshore Vs Offshore Wind Turbines]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait2 Presence]
−
# [http://library.thinkquest.org/06aug/01335/wind%20Power.htm Wind Power]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait3 Universal Anchor to Home Network]
−
# [http://www.ehow.com/list_5938067_types-wind-farms-there_.html Types of Wind Farms]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait4 Managed Service Delivery Platform]
−
# [http://www.offshorewindenergy.org/ca-owee/indexpages/Offshore_technology.php?file=offtech_p2.php Offshore Technology]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait5 Local Traffic Injection Point]
−
# [http://windsine.org/?act=spage&f=wind The Fundamentals of Wind Energy]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait6 Transparent Mobile Broadband]
−
# [http://windertower.com/ Winder Tower]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait7 Social Networking Tool]
−
# [http://www.thesolarguide.com/wind-power/wind-towers.aspx Wind Towers]
+
−
# [http://guidedtour.windpower.org/en/tour/design/concepts.htm Wind Turbine Blades]
+
−
# [http://www.wind-energy-the-facts.org/en/part-i-technology/chapter-3-wind-turbine-technology/evolution-of-commercial-wind-turbine-technology/design-styles.html Wind Turbine Design Styles]
+
−
# [http://www.awewind.com/Products/TurbineConstruction/MainAssembly/RotorHub/tabid/81/Default.aspx Rotor Hub Assembly]
+
−
# [http://www.gears-gearbox.com/wind-turbines.html Gearbox for Wind Turbines]
+
−
# [http://guidedtour.windpower.org/en/tour/wtrb/yaw.htm The Wind Turbine Yaw Mechanism]
+
−
# [http://guidedtour.windpower.org/en/tour/wtrb/yaw.htm The Wind Turbine Yaw Mechanism]
+
−
# [[Media:windturbinegenerators.pdf| Wind Turbine Generators]]
+
−
# [http://www.uni-hildesheim.de/~irwin/inside_wind_turbines.html Inside wind turbines]
+
 
|'''Image References'''
 
|'''Image References'''
−
# [http://www.windsimulators.co.uk/DFIG.htm DFIG Working Principle]
+
# [http://www.juniper.net/techpubs/software/aaa_802/imsaaa11/sw-imsaaa-admin/html/Overview3.html Femtocell Access to the Core Mobile Network via Broadband Internet]
−
# [http://www.wwindea.org/home/index.php  Country share of total capacity]
+
# [http://www.femtoforum.org/femto/aboutfemtocells.php Femtocell?]
−
# [http://www.atlantissolar.com/wind_story.html Wind turbine principle]
+
# [http://www.zdnet.com/blog/btl/at-t-testing-femtocells-to-boost-in-home-cell-phone-signals/11167 How Femtocell Work]
−
# [http://www.windturbinesnow.com/horizontalaxis-windturbines.htm Horizontal axis wind turbine]
+
# [http://www.airvana.com/technology/femtocell-network-architecture/#Common_Elements_of_the_Femtocell_Network_Architecture Common Components of Femtocell Network Architecture]
−
# [http://www.solarpowerwindenergy.org/2009/12/25/types-of-wind-turbines/ Vertical axis wind turbine]
+
# [http://www.airvana.com/technology/femtozone-applications/#The_Seven_Unique_Traits_of_the_Femtocell Unique Traits of Femtocell]
−
# [http://zone.ni.com/devzone/cda/tut/p/id/8189 Pitch control]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait1 Mobile/Home Network Bridging]
−
# [http://zone.ni.com/devzone/cda/tut/p/id/8189 Yaw control]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait2 Presence]
−
# [http://www.eco-trees.org/europes-biggest-onshore-wind-farm-goes-online/ Onshore Wind turbines]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait3 Universal Anchor to Home Network]
−
# [http://www.house-energy.com/Wind/Offshore-Onshore.htm Offshore wind turbines]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait4 Managed Service Delivery Platform]
−
# [http://www.solarpowerwindenergy.org/2010/04/02/parts-of-a-wind-turbine/ Wind turbine parts]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait5 Local Traffic Injection Point]
−
# [http://www.windsolarenergy.org/map-of-best-locations-for-wind-power.htm Tower height Vs Power output]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait6 Transparent Mobile Broadband]
−
# [http://americanrenewableenergycorp.com/towers Tubular tower]
+
# [http://www.airvana.com/technology/femtozone-applications/#Trait7 Social Networking Tool]
−
# [http://www.mywindpowersystem.com/2010/03/wind-power-stats-quiet-critics/ Lattice tower]
+
−
# [http://itgiproducts.com/energy/windTowers.asp Guy tower]
+
−
# [http://itgiproducts.com/energy/windTowers.asp Tiltup tower]
+
−
# [http://itgiproducts.com/energy/windTowers.asp Free stand tower]
+
−
# [http://www.wind-energy-the-facts.org/en/part-i-technology/chapter-3-wind-turbine-technology/evolution-of-commercial-wind-turbine-technology/design-styles.html Single blade turbine]
+
−
# [http://www.trendir.com/green/?start=15 Two blade turbine]
+
−
# [http://www.china-windturbine.com/wind-turbines-blades.htm Three blade turbine]
+
−
# [http://windturbinesforthehome.com/ Internal nacelle structure]
+
−
# [http://syigroup.en.made-in-china.com/product/dbTQyzJOHYRi/China-Iron-Casting-Wind-Mill-Tower-Rotor-Hub.html Rotor hub]
+
−
# [http://jiangyinzkforging.en.made-in-china.com/product/hewxIQjbgTpr/China-Wind-Turbine-Shaft-For-Wind-Power-Generator-ALIM2143-.html Shaft system]
+
−
# [http://machinedesign.com/article/green-technology-inside-an-advanced-wind-turbine-0605 Gear box]
+
−
# [http://www1.eere.energy.gov/windandhydro/wind_how.html Anemometer & Wind vane]
+
−
 
+
 
|-
 
|-
 
|}
 
|}

Latest revision as of 22:48, 29 July 2011

This report presents a brief summary about femtocells and also focuses on its various applications. A detailed taxonomy is presented which covers all the aspects related to femtocells. A detailed landscape analysis of patent and non-patent literature is done. The product information of major players in the market is also captured. The final section of the report also covers the existing and future market predictions.

Dolcera Landscape Procedure

  • Background study - Background study is done with web search depending on the area of client interest.
  • Finding key player/inventors - Web search is carried out to find the products and technologies of key players.
  • Patents Search -
    • Key patents search.
    • Prepared search queries using keywords and classification and finalized these in Micropat/Thompson.
  • Patents Classification - Classify all patents by creating taxonomy.
  • Specific analysis as required by client like SWOT, SOA, PEST, Claim, and White Space analysis.
  • Reporting -
    • All necessary data are presented in format of wiki or in form of power point slides.
    • Dashboard - Graphical representation of Patents classification.

Key Findings

  • Qualcomm, Samsung and NEC are the major players in femtocells technology
  • Key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
  • Patenting activity has seen a very high growth rate in the last two years.
  • US and WO are very active in femtocell technology research.
Femtocell Access to the Core Mobile Network via Broadband Internet


Introduction

A femtocell is a small cellular base station designed for use in residential or small business environments. It connects to the service provider’s network via broadband (such as DSL or cable) and typically supports 2 to 5 mobile phones in a residential setting. A femtocell allows service providers to extend service coverage inside of your home - especially where access would otherwise be limited or unavailable - without the need for expensive cellular towers. It also decreases the backhaul costs since it routes your mobile phone traffic through the IP network. Source

A femtocell is sometimes referred to as a “home base station”, “access point base station”, “3G access point”, “small cellular base station” and “personal 2G-3G base station”.

Femtocell

Femtocells are low-power wireless access points that operate in licensed spectrum to connect standard mobile devices to a mobile operator’s network using residential DSL or cable broadband connections.

Read More?

Click on Femtocell Background to read more about Femtocell.

Taxonomy

  • Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy

Click here for femtocell taxonomy definition

Femtocell - Search Strategy

Control Patents

Control patents are mostly used

  • to prepare concepts
  • to search classes, and
  • to verify the search strategy
S. No. Patent/Publication No. Publication Date (mm/dd/yy) Assignee / Applicant Title
1 US20110047011A1 02/24/11 Motorola Incentives to optimize the performance of femto cell groups
2 US20110039560A1 02/17/11 Cisco Technology System and method for providing access in a network environment
3 WO2011005654A2 01/13/11 Intel Corporation Initializing femtocells
4 US7855977B2 12/21/10 AT&T Alarming in a femto cell network
5 US20100309790A1 12/09/10 Alcatel-Lucent Femto base stations and methods for operating the same
6 US20100285812A1 11/11/10 Hitachi Call admission priority control determination device and mobile wireless communication system
7 US20100279704A1 11/04/10 NEC Corporation Method for controlling access to a mobile communications network
8 US20100267386A1 10/21/10 Qualcomm Incorporated Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station
9 US20100177695A1 07/15/10 Samsung Electronics Technique for interference mitigation using mobile station signaling
10 JP2010157807A 07/15/10 NEC Corporation Communication system, femto cell base station, authentication device, communication method, and communication program
11 US20100165957A1 07/01/10 Airvana Providing a cellular network with connectivity to a different network
12 WO2010063227A1 06/10/10 Huawei Technologies Positioning method and device for the home base station
13 US20100135201A1 06/03/10 AT&T Registration notification for mobile device management
14 US20100130212A1 05/27/10 ZTE Femto cell handover in wireless communications
15 GB2461845A 01/20/10 Ubiquisys Femtocell basestation scrambling code selection
16 US20090286540A1 11/19/09 AT&T Femtocell architecture for information management
17 EP2112854A1 10/28/09 Nokia Siemens Networks Access control method for cellular networks comprising femto-cells
18 US20090253421A1 10/08/09 Sony Ericsson Mobile Communications Local network management of femtocells
19 GB2456503A 07/22/09 ip.access Using global cell identifier for handover in a combined femto-cell/macro-cell environment

Patent Classes

S. No. Class Code Class Type Class Definition
1 370328 USPC Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations
2 370329 USPC Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations – Channel assignment
3 370331 USPC Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations - Channel assignment – Hand-off control
4 370338 USPC Multiplex communications - Communication over free space - Having a plurality of contiguous regions served by respective fixed stations – Contiguous regions interconnected by a local area network
5 4554221 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system
6 455434 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Control or access channel scanning
7 4554351 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Registration
8 4554352 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Registration – System selection
9 4554353 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Registration - System selection – Based on priority
10 455436 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Handoff
11 455444 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Handoff – Between macro and micro cells
12 455445 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Call routing
13 455446 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Including cell planning or layout
14 455450 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Channel allocation
15 4554522 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system - Channel allocation - Dynamic allocation – Based on service quality
16 4554561 USPC Telecommunications - Radiotelephone system - Zoned or cellular telephone system – Location monitoring
17 455522 USPC Telecommunications - Transmitter and receiver at separate stations - Plural transmitters or receivers - To or from mobile station – Transmission power control technique
18 455561 USPC Telecommunications - transmitter and receiver at same station - Radiotelephone equipment detail – Base station detail
19 H04B7* IPC Electric communication technique - Transmission - Radio transmission systems, i.e. using radiation field
20 H04L001228 IPC Electric communication technique - Transmission of digital information - Data switching networks - characterised by path configuration, e.g. local area networks (LAN), wide area networks (WAN)
21 H04L001256 IPC Electric communication technique - Transmission of digital information - Data switching networks - Stored and forward switching systems - Packet switching systems
22 H04L002906 IPC Electric communication technique - Transmission of digital information - Arrangements, apparatus, circuits or systems, not covered by a single one of groups - Communication control; Communication processing - characterised by a protocol
23 H04W4* IPC Electric communication technique - Wireless communication networks - Services or facilities specially adapted for wireless communication networks
24 H04W16* IPC Electric communication technique - Wireless communication networks - Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
25 H04W28* IPC Electric communication technique - Wireless communication networks - Network traffic or resource management
26 H04W36* IPC Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements
27 H04W40* IPC Electric communication technique - Wireless communication networks - Communication routing or communication path finding
28 H04W48* IPC Electric communication technique - Wireless communication networks - Access restriction; Network selection; Access point selection
29 H04W60* IPC Electric communication technique - Wireless communication networks - Registration, e.g. affiliation to network; De-registration, e.g. terminating affiliation
30 H04W68* IPC Electric communication technique - Wireless communication networks - Notification of users, e.g. alerting for incoming communication or change of service
31 H04W72* IPC Electric communication technique - Wireless communication networks - Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
32 H04W88* IPC Electric communication technique - Wireless communication networks - Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
33 H04W003638N ECLA Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Reselection control - by fixed network equipment - Of the core network
34 H04W003600P6R ECLA Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Control or signalling for completing the hand-off - Transmission and use of information for re-establishing the radio link - Of resource information of target access point
35 H04W003600P6T ECLA Electric communication technique - Wireless communication networks - Hand-off or reselecting arrangements - Control or signalling for completing the hand-off - Transmission and use of information for re-establishing the radio link - of access information of target access point
36 H04W007204F ECLA Electric communication technique - Wireless communication networks - Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources - Wireless resource selection or allocation – Control information exchange between nodes
37 H04W008404C2 ECLA Electric communication technique - Wireless communication networks - Network topologies - Hierarchical pre-organized networks, e.g. paging networks, cellular networks, WLAN or WLL - Large scale networks; Deep hierarchical networks - Public Land Mobile systems, e.g. cellular systems - using private Base Stations, e.g. femto Base Stations
38 H04W000824N ECLA Electric communication technique - Wireless communication networks - Network data management - Processing or transfer of terminal data, e.g. status or physical capabilities - Transfer of terminal data – From a network towards a terminal

Concept Table

English Keywords

S. No. Concept-1 Concept-2 Concept-3
Femtocell Access point Gateway
1 femtocell access point gateway
2 femto cell access terminal home gateway
3 home base station 3g access point security gateway (segw)
4 small cellular base station access point base station
5 personal 2g-3g base station low power wireless access points
6 femto base station miniature cellphone access points
7 femto network miniature cell phone access points
8 femtocell access point (fap)
9 cellular network access points


French Keywords

S. No. Concept-1 Concept-2 Concept-3
Femtocell Point d’accès Gateway
1 femtocell point d’accès gateway
2 cellules femto terminal d’accès accueil passerelle
3 station de base home point d’accès 3g security gateway (segw)
4 petite station de base cellulaire accès station de point de base
5 personnel de station de base 2g-3g low power points d’accès sans fil
6 station de base femto miniature points d’accès cellulaire
7 miniature points d’accès de téléphonie cellulaire
8 point d’accès femtocell (fap)
9 points d’accès au réseau cellulaire

German Keywords

S. No. Concept-1 Concept-2 Concept-3
Femtocell Access Point Gateway
1 femtocell access point gateway
2 femto-zelle access terminal home-gateway
3 home basisstation 3g access point security gateway (segw)
4 kleine zelluläre basisstation access point basisstation
5 persönliche 2g-3g-basisstation low-power-wireless access points
6 femto-basisstation miniatur-handy-zugangspunkte
7 miniatur-handy-zugangspunkte
8 femtocell access point (fap)
9 cellular network access points

Search Query

Database: Micropat
Databases covered: USG USA EPA EPB WO JP DEG DEA DET DEU GBA FRA
Years searched: 1836 - 8th March 2011

S. No. Concept Scope Query No. of Hits
1 Femtocell keywords Full patent spec. femtocell*1 OR (femto ADJ cell*1) OR (femto NEAR base NEAR station) OR (femto NEAR3 network*1) 3795
2 Femtocell keywords Claims, Title or Abstract femtocell*1 OR (femto ADJ cell*1) OR (home NEAR5 base NEAR5 station*1) OR (access NEAR5 point NEAR5 base NEAR5 station*1) OR (small NEAR5 cellular NEAR5 base NEAR5 station*1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1) 3176
3 Assignees Search (Restricted with Keywords) Assignee/Applicant Qualcomm OR Intel OR Picochip OR Ericsson OR ip.access OR (ip ADJ access) OR (Nokia ADJ Siemens) OR Motorola OR ZTE OR Agilent OR NEC OR Ubiquisys OR (AirWalk ADJ Communications) OR (Alcatel ADJ Lucent) OR Hitachi OR Cisco OR Airvana OR (Tatara ADJ System*1) OR Vodafone OR AT&T OR (Sprint ADJ Nextel) OR Verizon OR (Mobile ADJ TeleSystem*1) 2145
Full patent spec. (((access ADJ point*1) OR (access NEAR5 terminal*1) OR (3g NEAR5 access NEAR5 point*1) OR (access NEAR5 point*1 NEAR5 base NEAR5 station) OR (low NEAR5 power NEAR5 wireless NEAR5 access NEAR5 point*1) OR (miniature NEAR5 (cellphone OR (cell ADJ phone)) NEAR5 access NEAR5 point*1) OR ((femtocell*1 OR (femto ADJ cell*1)) NEAR5 access point) OR fap OR (cellular NEAR5 network NEAR5 access NEAR5 point*1)) AND (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1) OR femto*1)) OR (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1) OR femto*1) OR ((gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1) OR femto*1)) (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1) OR femto*)
4 Access Points Keywords with Femtocell Claims, Title or Abstract ((access ADJ point*1) OR (access NEAR5 terminal*1) OR (3g NEAR5 access NEAR5 point*1) OR (access NEAR5 point*1 NEAR5 base NEAR5 station) OR (low NEAR5 power NEAR5 wireless NEAR5 access NEAR5 point*1) OR (miniature NEAR5 (cellphone OR (cell ADJ phone)) NEAR5 access NEAR5 point*1) OR ((femtocell*1 OR (femto ADJ cell*1)) NEAR5 access point) OR fap OR (cellular NEAR5 network NEAR5 access NEAR5 point*1)) AND (femtocell*1 OR (femto ADJ cell*1) OR (home NEAR5 base NEAR5 station*1) OR (access NEAR5 point NEAR5 base NEAR5 station*1) OR (small NEAR5 cellular NEAR5 base NEAR5 station*1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1)) 1191
5 Gateway Keywords with Femtocell Claims, Title or Abstract (gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell*1 OR (femto ADJ cell*1) OR (home NEAR5 base NEAR5 station*1) OR (access NEAR5 point NEAR5 base NEAR5 station*1) OR (small NEAR5 cellular NEAR5 base NEAR5 station*1) OR (personal NEAR5 "2g-3g" NEAR5 base NEAR5 station*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1)) 359
6 Classification Search (Restricted with Keywords) Any Classification 370328 OR 370329 OR 370331 OR 370338 OR 4554221 OR 455434 OR 4554351 OR 4554352 OR 4554353 OR 455436 OR 455444 OR 455445 OR 455446 OR 455450 OR 4554522 OR 4554561 OR 455522 OR 455561 OR H04B7* OR H04L001228 OR H04L001256 OR H04L002906 OR H04W4* OR H04W16* OR H04W28* OR H04W36* OR H04W40* OR H04W48* OR H04W60* OR H04W68* OR H04W72* OR H04W88* OR H04W003638N OR H04W003600P6R OR H04W003600P6T OR H04W007204F OR H04W008404C2 OR H04W000824N 1212
Full patent spec. (((access ADJ point*1) OR (access NEAR terminal*1) OR (3g NEAR access NEAR point*1) OR (access NEAR point*1 NEAR base NEAR station) OR (low NEAR power NEAR wireless NEAR access NEAR point*1) OR (miniature NEAR (cellphone OR (cell ADJ phone)) NEAR access NEAR point*1) OR ((femtocell*1 OR (femto ADJ cell*1)) NEAR access point) OR fap OR (cellular NEAR network NEAR access NEAR point*1)) AND (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1))) OR (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1)) OR ((gateway OR (home ADJ gateway) OR (security ADJ gateway) OR segw) AND (femtocell*1 OR (femto ADJ cell*1) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 base NEAR5 station) OR ((femto OR (femto ADJ cell*1) OR femtocell*1) NEAR5 network*1)))
7 Combined Query 1 OR 2 OR 3 OR 4 OR 5 OR 6 2990 Unique families (5694)

Sample Analysis

Patent Analysis

S.No. Patent/Publication No. Title Dolcera Analysis
Problem Solution
1 US20110047011A1 Incentives to optimize the performance of femto cell groups The convergence of wireless communication and mobile computing devices continues to spur demand for wireless broadband communication services. As the demand grows, so too must the network infrastructure needed to support wireless communications. Method of incentivizing an operator of femto cell infrastructure to efficiently utilize the femto cell infrastructure. The method can include establishing, for an end user device, telecommunication network presence on a femto cell. At least one parameter measured within the femto cell can be received. Based on the measured parameter, a determination can be made as to whether to award at least one incentive to the operator of the femto cell, and the incentive can be awarded to the operator.
2 US20110039560A1 System and method for providing access in a network environment Networking architectures have grown increasingly complex in communication environments. Femtocells have gained recent notoriety due to their capabilities. For many femto scenarios, connectivity and/or access protocols can pose a number of problems for end users. A method includes evaluating geolocation information associated with a mobile node and using the geolocation information to identify a femtocell capable of providing network access to the mobile node. A primary scrambling code is provided to the mobile node for operation in an idle mode. The method also includes communicating a secondary scrambling code to initiate access to the femtocell by the mobile node when operating in an active mode.
3 WO2011005654A2 Initializing femtocells Femto access points generally cannot be initiated into an operator’s network, such as a WiMAX network. The femtocell may be pre-provisioned with certain credentials so that a femtocell access point can authenticate itself to the operator’s network and become attached to that network. The pre-provisioned parameters may include non-operator specific parameters such as the specific credentials for a particular wireless protocol, such as a WiMAX protocol. It may also include operator specific credentials including the fully qualified domain name (FQDN) of a bootstrap server in the femtocell network service provider (NSP)
4 US7855977B2 Alarming in a femto cell network To efficiently gauging performance of a femto cell network through generation of alarms based on performance rules for aggregated operational data of multiple femto cell access points. System(s) and method(s) to monitor operation quality of a femto cell network is provided. Operational data received from deployed femto cell access points are aggregated and monitored; aggregation and monitoring take place within a femto cell network platform.
5 US20100309790A1 Femto base stations and methods for operating the same A major obstacle to using GPS systems to determine and track the location of a femto base station is presented when the femto base station is located indoors because satellite signal penetration indoors is highly unreliable. The femto base stations and methods to suppress the need for external global positioning system (GPS) antennas and cables, while continually enabling a network service provider to obtain desired position information. It also provide user with the flexibility to place the femto base station at the location of his/her choice within the home or business regardless of GPS signal strength.
6 US20100285812A1 Call admission priority control determination device and mobile wireless communication system When more than one terminal is present in the same cell and these terminals communicate with one base station, the wireless resources of that base station are shared among the plural terminals. As a result, the communication rate becomes lower than when communication is performed by only one terminal. Thus, there is a problem that the use of the femtocell base station by other users deteriorates the quality of communication by specified terminal users such as the femtocell base station administrator. It can be solved by a call admission priority control determination device including a registration table containing base station ID numbers of base stations and an ID number of a high-priority first terminal, and a call admission determination unit that determines call admission with reference to the registration table, wherein, when a connection request or a switching-over request for a third terminal has been received from a base station control device, the call admission determination unit, on the basis of this request, references the registration table and determines whether or not call admission for the third terminal is to be permitted.
7 US20100279704A1 Method for controlling access to a mobile communications network Current 3G redirection features do not allow for redirection of UE’s from a first cell to another cell operating at the same frequency as the first cell. Therefore, if the 3G femtocell is operating at the same frequency as a neighboring 3G RAT or macrocell, then the current redirection mechanism cannot be used for balancing the load. This is due to interference between cells. For particular femtocells which have reached or are nearing full capacity, a UE such as a mobile telephone or mobile communication device can be redirected from a 3G femtocell to another macrocell operating at the same or different frequency as the femtocell (access point). This provides improved communications for existing users within the femtocell, as well as for new users whose communications have been redirected to another cell.
8 US20100267386A1 Methods and apparatus for facilitating handoff between a femtocell base station and a cellular base station The resources of a wireless communication system (e.g., bandwidth and transmit power) may be shared among multiple subscriber stations. A variety of multiple access techniques are known, including CDMA, TDMA, FDMA, OFDMA, SC-FDMA etc. Benefits may be realized by improved methods and apparatus related to the operation of wireless communication systems. A method to facilitate femtocell-to-cellular base station handoff is provided. The femtocell base station may receive a neighbor list from the cellular base station. The neighbor list may include information about other cellular base stations. The femtocell base station may broadcast the neighbor list to subscriber stations that are located within a coverage area of the femtocell base station.
9 US20100177695A1 Technique for interference mitigation using mobile station signaling MS cannot access the neighboring FBS because the neighboring FBS is a CSG FBS and therefore does not allow access to an unauthorized MS, except for an emergency service. Therefore, the MS falls into a black hole in the network, even though the MS is located within the service coverage area of the FBS it is authorized to receive service from. In worse scenario, the MS is prohibited from sending any signal to the neighboring FBS since the neighboring FBS is a CSG FBS A method to operate an MS for Interference Mitigation (IM) in a wireless communication system including a plurality of Closed Subscriber Group (CSG) FBSs is provided. The method includes determining if the MS cannot access a first CSG FBS due to interference from a second CSG FBS, the first CSG FBS being a CSG FBS that the MS is authorized to receive service from and the second CSG FBS being a CSG FBS that the MS is not authorized to receive service from, and in the case when MS cannot access the first CSG FBS due to interference received from the second CSG FBS, transmitting an IM-Signal to the second CSG FBS requesting that the second CSG FBS mitigate the interference to the MS
10 JP2010157807A Communication system, femto cell base station, authentication device, communication method, and communication program To provide a communication system for assuring communication security in communication between a femto cell base station and an UE. Communication system is presented which includes: the UE (User Equipment) and an HLR (Home Location Register) to be used in an IMS (IP Multimedia subsystem) network; and the femto cell base station (Femto AP) organizing a prescribed communication area. The femto cell base station (Femto AP) is a communication system existing between the UE and the HLR, to keep the UE confidential through the use of authentication information corresponding to the UE obtained from the HLR when the UE is authenticated.
11 US20100165957A1 Providing a cellular network with connectivity to a different network An access point in a cellular network for providing a cellular device with network connectivity to a different network. A System is provided for use in wireless communication which includes a first device communicating via a first protocol in a first network, a cellular device communicating via a second protocol in a cellular network, the second protocol being incompatible with the first protocol, and an access point in the cellular network, the access point being accessible by the cellular device and being configured to enable communication between the first device and the cellular device.
12 US20100135201A1 Registration notification for mobile device management To notification of registration of a mobile device within femto coverage area for device content management. A method is presented in which notification is conveyed to a network component or platform that manages firmware content(s) updates when a mobile device for which an update is available, hands off from wireless macro network coverage onto a femto cell coverage. The notification is delivered in response to a firmware update notification delivered to a component that administers location of the mobile device, or an update flag delivered to a femto access point that can provide femto coverage to the mobile device.
13 US20100130212A1 Femto cell handover in wireless communications Techniques and systems for performing handover of a mobile station between a cellular wireless network and a private cell or private network. Presented a techniques and systems for performing handover of a mobile station between a cellular wireless network and a private cell or private network which includes operating a macrocell base station to provide wireless service to mobile stations, determining a candidate group of one or more femtocell base station candidates based at least on respective one or more proximities to the macrocell base station to perform a handover of a mobile station that is being served by the macrocell base station, causing the mobile station to take measurements of signals from one or more base stations identified by the candidate group, and selecting a target femtocell base station from the candidate group for the handover based on the measurements.
14 GB2461845A Femtocell basestation scrambling code selection The mobile network operator may allocate only a small number of scrambling codes for use by all of the deployed femtocell basestations, and in fact it is possible that there may be only one scrambling code allocated for use by all of the femtocell basestations in an operator’s network, and so there is a possibility that two femtocell basestations that are located very close together may need to use the same scrambling code. A method for reducing the possibility of interference between femtocell basestations that are located very close together may need to use the same scrambling code which includes method of selecting a scrambling code, for use in a basestation of a cellular communications network, the method comprising: receiving from a management system a list comprising at least one allowed scrambling code for femtocell basestations; and detecting, in information broadcast by at least one macrocell basestation, at least one allowed scrambling code available in an area containing the basestation.
15 US20090286540A1 Femtocell architecture for information management Congestion in the backhaul network and delays during communication increases because an increase in the number of devices attached to a femto cell, the traffic on the backhaul network of the femto cell can increase significantly The method presented can facilitate reduction in backhaul network traffic and communication delay by employing an enterprise femto architecture. The enterprise femto architecture employs a routing platform to connect multiple femtos access points to a common femto gateway to generate a mesh network.
16 EP2112854A1 Access control method for cellular networks comprising femto-cells It is not necessary that the femto system may know at each time the cell locations of all user equipments camping in its area because it will be unable to track those user terminals entering the femto-cell while in the Idle Mode, and also taking into account the fact that up to 6 minutes might be necessary for the user terminal to trigger its periodic location update. Because of this it would not be possible to distribute paging messages from the Core Network to individual femto-cells without running the risk that paging may not be received by the user equipment addressed thereby. A method is provided to control access of user terminals to a femto system which includes Non Access Stratum (NAS) Mobility Management (MM) messages as well as Access Stratum (AS) Radio Resource Control (RRC) messages.
17 US20090253421A1 Local network management of femtocells Femtocells could suffer from interference problems without unique spectrum for the femtocell underlay network such as, in a high-rise apartment complex environment, a number of femtocells may be placed near each other, and may be separated only by the floor and/or walls of adjacent apartment units. If these femtocells operate on the same channel, then one femtocell may interfere with the operation of the other femtocell, and vice-versa. A method to minimize signal interference within a wireless network, the wireless network including a controller communicatively coupled to at least one femtocell, wherein the femtocell is operative to wirelessly transmit and receive data, the method includes: using a portable electronic device to collect signal environment data; analyzing the collected signal environment data; and based on the analyzed signal environment data, commanding the at least one femtocell to alter at least one signal transmission characteristic.
18 GB2456503A Using global cell identifier for handover in a combined femto-cell/macro-cell environment When large number of femto cells compared to the number of macro cells is present, it is not possible to ensure that all the femto cells within the coverage area of a macro cell have individual and different frequencies and scrambling codes. So in a combined femto cell-macro cell environment, the macro cell RNC will be unable to determine, from the measurement report received from the UE, which cell (either a femto cell or macro cell) was measured. A method is provided which includes a network element for a cellular communication system, network element comprises a receiver for receiving a message that comprises a measurement report from a wireless communication unit. The network element further comprises signal processing logic, operably coupled to the receiver, for processing the received measurement report and extracting a global cell identifier therefrom, so the inventive concept provides an improvement to the use of measurement reports, which may be used to facilitate handover between cells in a cellular communication system.

Article Analysis

S. No. Title Publication Date Journal/Conference Dolcera Summary
1 Cognitive Femtocell Mar. 2011 IEEE Vehicular Technology Magazine Because of the fact that femtocells can access a resource, sufficiently and locally, to known users with higher throughput, considerable attention has been devoted to the potential cognitive femtocell to allow for higher capacity and intelligent coverage, with guaranteed quality of service (QoS) for future indoor service. Cognitive femtocell is presented as a solution for spectrum-scarcity problems and local-convergence demands for indoor network applications. To control the data packet delivery between the macrocell and cognitive femtocell, A developed gateway broadband router based on novel cross-layer management optimization is used.
2 Interference Analysis for Femtocell Deployment in OFDMA Systems Based on Fractional Frequency Reuse Mar. 2011 Communications IEEE Letters A method of optimal power allocation for femtocells with different orthogonal subbands, based on analysis of macrocell interferences is presented.
3 On-Demand Resource-Sharing Mechanism Design in Two-Tier OFDMA Femtocell Networks Mar. 2011 IEEE Vehicular Technology Society Discussed two main design issues in orthogonal frequency-division multiple-access (OFDMA) femtocell networks, i.e., resource sharing and femtocell access control. More comprehensive perspective on self-organizing femtocell networks, where users optimize their performance in a distributed manner is presented.
4 Open vs. Closed Access Femtocells in the Uplink Dec. 2010 IEEE Transactions on Wireless Communications Since open access deployment provides an inexpensive way to expand their network capabilities, so it would be preferred by the network operator whereas the femtocell owner would prefer closed access, in order to keep the femtocell’s capacity and backhaul to himself, but best approach depends heavily on whether the multiple access scheme is orthogonal (TDMA or OFDMA, per subband) or non-orthogonal (CDMA)
5 Robust Transmission and Interference Management For Femtocells with Unreliable Network Access Dec. 2010 IEEE Journal on Selected Areas in Communications Since each femtocell is served by a home base station (HBS) that is connected to the macrocell base station (BS) via an unreliable network access link, such as DSL followed by the Internet, A scenario with a single macrocell and a single femtocell is presented, and is then extended to include multiple macrocells and femtocells, both with standard single-cell processing and with multicell processing (or network MIMO). Two main issues are presented regarding uplink channel: (i) Interference management between femto and macrocells; (ii) Robustness to uncertainties on the quality of the femtocell (HBSto-BS) access link.

Top Cited Patents

S. No. Patent/Publication No. Publication Date
(mm/dd/yy) 		Assignee/Applicant Title Citation Count
1 US20070097939A1 05/03/07 Ericsson Automatic configuration of pico radio base station 60
2 US20070254620A1 11/01/07 Ericsson Dynamic building of monitored set 33
3 US20080132239A1 06/05/08 Kineto Wireless Method and apparatus to enable hand-in for femtocells 20
4 US20050144647A1 06/30/05 Mordechai Zussman (Inventor) Wireless provider monitoring of catv segment 17
5 US20070270152A1 11/22/07 Ericsson Access control in a mobile communication system 16
6 US20080261602A1 10/23/08 Qualcomm Backhaul network for femto base stations 12
7 US20080076425A1 03/27/08 Kineto Wireless Method and apparatus for resource management 11
8 US20080244148A1 10/02/08 Go2Call.com VoIP enabled femtocell with a USB transceiver station 8
9 US20090040972A1 02/12/09 Julius Robson (Inventor) Radio resource allocation for cellular wireless networks 7
10 US20080305801A1 12/11/08 Lucent Technologies Method and apparatus to allow hand-off from a macrocell to a femtocell 7

Top Cited Articles

S. No. Title Publication Date Journal/Conference Citations Count
1 Femtocell networks: a survey Sep. 2008 IEEE Communications Magazine 272
2 Performance of Macro- and Co-Channel Femtocells in a Hierarchical Cell Structure Sep. 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007 93
3 Effects of User-Deployed, Co-Channel Femtocells on the Call Drop Probability in a Residential Scenario Sep. 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007 75
4 Uplink capacity and interference avoidance for two-tier femtocell networks Jul. 2009 IEEE Transactions on Wireless Communications 62
5 OFDMA femtocells: A roadmap on interference avoidance Sep. 2009 IEEE Communications Magazine 55
6 WiMAX femtocells: a perspective on network architecture, capacity, and coverage Oct. 2008 IEEE Communications Magazine 55
7 An overview of the femtocell concept May. 2008 Bell Labs Technical Journal 53
8 Self-optimization of coverage for femtocell deployments Apr. 2008 Wireless Telecommunications Symposium, 2008 49
9 Power control in two-tier femtocell networks Aug. 2008 IEEE Transactions on Wireless Communications 34
10 Interference management and performance analysis of UMTS/HSPA+ femtocells Sep. 2009 IEEE Communications Magazine 26

Patent Ranking

S.no Patent/Publication No. US Class (primary) Title Publication Year Priority Year(s) Legal Status Rank
1 US7855983B2 370280 Time Division Duplex Front End Module 2010 2006 | 2007 | 2007 | 2008 Patented Case 3
2 US7613444B2 455403 Dynamic Building Of Monitored Set 2009 2006 Patented Case 1
3 US20110105129A1 455443 Femtocell Search Method For Macro To Femto Handover 2011 2008 | 2008 | 2010 Docketed New Case - Ready for Examination 2
4 US20110047011A1 7050141 Incentives To Optimize The Performance Of Femto Cell Groups 2011 2009 Docketed New Case - Ready for Examination 2


Disclaimer: Patent ranking has been done according to the following logic:

  • Rank-1: Granted + Femtocell related (claims)
  • Rank-2: Published + Femtocell related (claims)
  • Rank-3: Femtocell related (Full spec )
  • Rank-4: May be relevant
  • Rank-5: Abandoned or Expired


Products

S. No. Company Product Specification
1 AT&T
AT&T 3G MicroCell
 Power Supply: 100-120 VAC, 15 W; 12 VDC, 1.25 A Output. Status Indicators: Power, Ethernet, GPS,
Computer, 3G. Dimensions (H x D x W): 8.5 in.x6.3 in.x1.5 in. (at top), 4 in. (at legs). Unit Weight: 1 lb 2 ounces (AC power adapter not included). Ambient Temperature Range: 0° to 38°C
2 Cisco
Cisco 3G Femtocell
 Front panel indicators: Power, Ethernet, GPS, PC, 3G. GPS antenna extender: Optional external GPS antenna input. Ethernet connection: RJ-45, WAN connection with broadband modem. PC connection: RJ-45, LAN connection with PC or network router. Reboot button: Restarts device initialization and authentication. UMTS bands: 1900 MHz and 850 MHz (Bands 2 and 5). Output power: 5mW. HSDPA aggregate throughput: Up to 3.6 Mbps. AC power adapter: Input: 90-120VAC; Maximum output: 12V, 1.67A, 20W. Temperature range: 0° to 45°C (32° to 113°F). Dimensions: 7.0 in x 8.0 in. x 2.0 in. Weight: 1.0 lb
3 AirWalk Communications
EdgePoint Femtocell
 Dual Mode: EVDO and 1xRTT, Ethernet backhaul, Self-optimizing, Plug-and-play installation, Single band 800/1900 MHz, 2G and 3G handset compatibility, IOS/SIP interface
4 AirWalk Communications
EdgePoint PRO Enterprise Femtocell
 Dual-mode: CDMA 1xRTT and EVDO Rev. A (Rev B+ capable) in one device, Integrated BTS, BSC, RN, RNC, PCF and O&M, Self-optimizing, Plug-and-play installation, Advanced handoff capability (clustering), 10/100 Ethernet backhaul, Single band 450/800/1900 MHz, 2G/3G handset compatibility, IOS or SIP/IMS core network compatibility
5 Airvana
HubBub CDMA
 Simultaneous 1xRTT and EV-DO Rev-A, Flat IP-based architecture, SIP/IMS Core Network Interface, Plug-and-Play Install, Automated Network Planner, Comprehensive Remote Management, Compatible with standard CDMA 1xRTT and EV-DO Rev-A handsets, Ethernet Backhaul
6 Airvana
HubBub UMTS
 RF output power: 20 dBm, Supports 4 Simultaneous AMR Channels (voice calls), 7.2 Mbps HSDPA & 1.5 Mbps HSUPA, Range 50m to 200m, Ethernet Backhaul
7 Samsung
CDMA UbiCell
 RF output power: Up to 50mW, System Capacity: 1carrier / Omni, Traffic Channel: Up to 4 simultaneous users, Air Interface: CDMA2000 1X, Frequency: 1.9GHz (SCS-26UC2), 800MHz (SCS-26UC3), Dual Band (SCS-26UC4), Input Power: 00~250VAC, Network Interface: 10/100 Base-T Ethernet, Volume: 95 in3 (1.5 Liters), Weight: 1.41 lb (640g), Operating Temperature: 32°F to 113°F (0°C to 45°C), Dimension: 6.1 x 8.2 x 1.9 inch (154 x 208 x 47 mm, HWD)
8 Samsung
HSPA UbiCell
 RF Output: Up to 20mW, System Capacity: 1carrier / Omni, Traffic Channel: Up to 4 simultaneous users, Air Interface: WCDMA / HSPA, Frequency: 2.1GHz, Input Power: 100~240VAC, Network Interface: 10/100 Base-T Ethernet, Volume: 1.4 Liters, Weight: 600g, Operating Temperature: 0°C to 45°C, Dimension: 185 x 210 x 36 mm (HWD)
9 ip.access
nano3G S8
 RF output power: 5mW (+7dBm), UMTS bands: 1,4,2/5, Simultaneous users: 8, Electrical power: <8W, External antennas: No, Oscillator: VCTCXO, NTP: Time stamp & sync, Temp. range: 0° to 40°C, Dimensions(mm): 193x171x53
10 Huawei
Huawei’s Home Media Center
 RF output power: 20mW, Traffic Channel: Up to 4 simultaneous users
11 Argela
Femtocell3G
 Radio frequency: UMTS FDD band I support, Transmit power: 23 dBm (200 mW) maximum, Cell radius: 200m maximum, Maximum active UEs: 8, Access control: Closed, Open, or Hybrid, UMTS services: 12.2 kbps AMR for voice, 64 kbps video (128 kbps can be supported), PS data services at upto 384 kbps, HSDPA 14 Mbps downlink (limited by DSL speed), HSUPA 5.7 Mbps uplink (limited by DSL speed), Physical characteristics: Max power consumption of 10W during normal operation, 18cm x 11cm x 2.5cm, 12V DC supply, Weight 400g, RJ-45 10/100 Ethernet connection to the DSL CPE

Market Research

Mobile Communication Problems

  • Parks Associates, commissioned by the Femto Forum, has conducted this custom consumer research in six nations: the U.S., the U.K., Germany, Spain, China, and Japan. The following chart illustrates the problem associated with mobile communication, from which we can conclude that China has severe problems in mobile based services.
Problems with Mobile Service

Source: Parks Associates

Demand of Femtocells

  • From the above chart we can see that China has severe problems in mobile based services, therefore, the demand of femtocells is more in China.
Femtocell Demand Varies by Market(Q3 2010)

Source: Parks Associates

Deployment and Commitments of Femtocell Service

  • This chart exemplifies a historical representation of deployments and commitments, both of which have increased almost 300% within a year.
Femtocell Service Deployments & Commitments

Source:Informa Telecoms & Media

Market Forecast

  • The following chart exemplifies Informa’s forecasts (January 2010) for femtocell access point shipments and users.
Femtocell access point and user forecasts

Source:Informa Telecoms & Media

The following table provides a summary of publicly announced statements, sorted by reverse chronological order. The table is followed by more information regarding each statement:

  • Strategy Analytics expects femtocell access point shipments to reach 2 million during 2010 (Strategy Analytics – November 2010).
  • ABI research expects 1 million femtocells to have been shipped by the end of 2010,increasing to 54 million femtocell shipments during 2015. ABI research estimates that 1.3 million femtocells have been shipped to operators from vendors during 2010. The estimate for femtocell shipments for 2011 is 3.8 million and 70 million for 2015(ABI Research – September 2010).
  • IDate has updated its femtocell market forecasts, with 11.7 million femtocell access point shipments during 2013, increasing to 23 million during 2014 (iDate – September 2010).
  • Alcatel Lucent has performed research on consumer attitudes to a variety of femtocell marketing propositions and forecasts more than 34 million femtocell users in the US, UK, Germany, Singapore and Taiwan by 2014, at which point the market will be worth over €6 billion (Alcatel Lucent– September 2010)
  • In-­Stat has published updated femtocell forecasts, and expects that worldwide annual enterprise femtocell revenue CAGR will be 125.7% from 2009-­2014 (In-­Stat - September 2010).
  • Dell’Oro expects estimates 1 million femtocell access points to ship this year, reaching 62 million during 2014, more than 80% of which will be WCDMA femtocells (Dell’Oro - August 2010).
  • iSuppli forecasts that shipments will rise to 1.9 million during 2010, up from 571,000 in 2009. A period of expansion then will follow, with shipments reaching 7.2m units in 2011, up 289% from 2010. Shipments are forecast to rise by 232% to reach 23.9m units in 2012 and by 657% to hit 39.6m units in 2013. (iSuppli - March 2010).
  • GIA projects the femtocell market to surpass 75.8 million by the year 2015, driven by the ongoing migration of mobile operators from smaller access points to large base stations. (Global Industry Analysts - March 2010).

Source:Informa Telecoms & Media

Key Findings

Note: Total 864 Sample patents were taken into consideration for analysis (Data upto 8th March 2011).


  • Qualcomm, Samsung and NEC are the major players in femtocells technology
  • Key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
  • Patenting activity has seen a very high growth rate in the last two years.
  • US and WO are very active in femtocell technology research.

Major Players

  • The following chart illustrates the Major Players in femtocells technology from which it can be concluded that the Qualcomm, Samsung and NEC are the major players in femtocells technology.
Major Players


Key Patents

  • The following chart illustrates the Key Patents in femtocells technology from which it can be concluded that the key patents in the femtocells are held by Ericsson, Kineto Wireless and Qualcomm.
Key Patents

IP Activity

  • The following charts illustrate the Patent Publication/Priority activity in previous years from which it can be concluded that the Patenting activity has seen a very high growth rate since 2008.
IP Activity Based on Publication Years
IP Activity Based on Priority Years

Geographical Activity

  • The following chart illustrates the Geographical Distribution of patents from which it can be concluded that the US and WO are very active in femtocell technology research.
Geographical Activity
  • Others includes 13 Patents from Germany(DE), 8 Patents from South Korea(KR), 6 Patents from Austria(AT), 5 Patents from France(FR) and 2 Patents from Brazil(BR).

Market Player Analysis

Network Element Technology Mapping

The following chart illustrates Network element technology mapping with top market players and drawn based on 100 sample patents as given on the dashboard from which it can be concluded that significant work is being done on Femtocell access point.

Femtocell Network Element Technology Mapping

Patent Activity Based on Priority Year

The following chart illustrates Patent/Publication activity year by year for top market players from which it can be concluded that significant research activity has taken place in the years 2008 and 2009

Patent Activity Based on Priority Year

Patent Activity Based on Publication Year

The following chart illustrates Patent/Publication activity year by year for top market players from which it can be concluded that significant research activity has been published from 2009 onwards.

Patent Activity Based on Publication year

Claim Mapping

Process Flow

Dp1.jpg

Sample claim charting

S.No. Patent/Publication No. Claim Language Relevant Section in Femtocell Release Technical Comment
1 WO2010082874A1 Claim1 4 Overview 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)
A method performed in a communication system (100) by a device (120) that is communicatively coupled to the communication system, and where the communication system includes one or more closed subscriber group (CSG) cells, comprising: searching (505) for the one or more CSG cells; attempting (510) to access the one or more CSG cells; determining (515) whether access to the one or more CSG cells is granted; and updating (520) a CSG White List corresponding to the one or more CSG cells in which access is granted, where the CSG White List indicates to the device which of the one or more CSG cells the device is allowed to access. To facilitate access control, a UE with CSG subscription would have an CSG whitelist, which contains one or more CSG Identities associated with the CSG cells on which the UE is allowed access. UE is allowed access to HNB based on CSG whitelist
Claim2
The method of claim 1 , where the communication system includes one or more of a Long Term Evolution (LTE) network or a Wideband Code Division Multiple Access/Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (WCDMA/UTRAN) and the one or more CSG cells includes one or more femto cells. The claim is generic HNB can be connected to any of the following networks like LTE, WCDMA/UTRAN etc.
Claim3 4 Overview 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)
The method of claim 1 , where the device includes the CSG White List To facilitate access control, a UE with CSG subscription would have an CSG whitelist To gain access UE must have CSG whitelist
and the method is performed to update the CSG White List. 6.1 Manual CSG ID Selection 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)
Based on the outcome of a Location Registration procedure initiated on a CSG cell, the UE’s CSG whitelist is updated. CSG whitelist is updated based on the process carried out by Location register
Claim4 6.1 Manual CSG ID Selection 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)
The method of claim 3, where the attempting comprises: attempting to access the one or more CSG cells, where one of the one or more CSG cells is not included in the CSG White List. During manual CSG ID selection a UE is allowed to perform Location Registration procedure on a CSG cell whose CSD ID is not in the CSG whitelist. CSG ID’s which are not included in CSG whitelist are allowed to access CSG cell after following a location register procedure
Claim5 6.1 Manual CSG ID Selection 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2 (Release 9)
The method of claim 1 , where the device includes a user equipment, and the method further comprises: updating the CSG White List corresponding to the one or more CSG cells in which access is denied. During manual CSG ID selection a UE is allowed to perform Location Registration procedure on a CSG cell whose CSD ID is not in the CSG whitelist. Based on the outcome of a Location Registration procedure initiated on a CSG cell, the UE’s CSG whitelist is updated. CSG whitelist is updated based on the process carried out by Location Registration procedure initiated on a CSG cell
  • Click here to download the excel sheet.
  • Click here to download the release for 3GPP TS 25.367 V9.5.0 (2010-12) Mobility procedures for Home Node B (HNB); Overall description; Stage 2; (Release 9)

Interactive Taxonomy

  • Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy
  • Click on the red arrow adjacent to the node name to view the content for that particular node in the dashboard

Dolcera Dashboard

The Dashboard is Dolcera's visualization platform to present the organized patent landscape

  • Best viewed in Internet explorer 6 and higher versions
  • To view dashboard you would require a flash player. Kindly install a flash player if its not installed in your system
Dbim.png

Dashboard Links

Femtocell-Network Category - Dashboard
Dashboard thumb.png
Femtocell-Problem Solution Mapping of Handover Node- Dashboard
Dashboard thumb.png
  • Note1: Use the following credentials to view the dashboard 1.1
    • Username: demo@dolcera.com
    • Password: demo123
  • Note2: A total of 100 patents were considered for the creation of the sample dashboard

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References

Background References
  1. Femtocell?
  2. Femtocells: Why Now?
  3. Femtocell Network Architecture
  4. The Seven Unique Traits of Femtocell
  5. Mobile/Home Network Bridging
  6. Presence
  7. Universal Anchor to Home Network
  8. Managed Service Delivery Platform
  9. Local Traffic Injection Point
  10. Transparent Mobile Broadband
  11. Social Networking Tool
 Image References
  1. Femtocell Access to the Core Mobile Network via Broadband Internet
  2. Femtocell?
  3. How Femtocell Work
  4. Common Components of Femtocell Network Architecture
  5. Unique Traits of Femtocell
  6. Mobile/Home Network Bridging
  7. Presence
  8. Universal Anchor to Home Network
  9. Managed Service Delivery Platform
  10. Local Traffic Injection Point
  11. Transparent Mobile Broadband
  12. Social Networking Tool

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Samir Raiyani
Email: info@dolcera.com
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