US Patent No: 7,444,170

Number of patents in Portfolio can not be more than 2000

Co-channel wireless communication methods and systems using nonsymmetrical alphabets

ALSO PUBLISHED AS: 20040192395

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Abstract

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Wireless communications are transmitted from at least two radioterminals to a base station co-channel over a return link using a return link alphabet. Wireless communications are also transmitted from the base station to the at least two radioterminals over a forward link using a forward link alphabet that has more symbols than the return link alphabet. The co-channel signals are deciphered at the receiver, while the radioterminals can use a smaller return link alphabet, which can reduce the power dissipation at the radioterminals.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ATC TECHNOLOGIES, LLCRESTON, VA217

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Karabinis, Peter D Cary, NC 323 10664

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ATC TECHNOLOGIES, LLC (41)
5,073,900 Integrated cellular communications system 414 1990
5,612,703 position determination in an integrated cellular communications system 208 1995
5,835,857 Position determination for reducing unauthorized use of a communication system 203 1996
5,878,329 Power control of an integrated cellular communications system 203 1997
5,832,379 Communications system including control means for designating communication between space nodes and surface nodes 179 1997
5,940,753 Controller for cellular communications system 176 1997
5,995,832 Communications system 212 1998
6,108,561 Power control of an integrated cellular communications system 217 1999
6,522,865 Hybrid satellite communications system 150 1999
6,892,068 Coordinated satellite-terrestrial frequency reuse 179 2001
6,859,652 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 166 2001
6,684,057 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum 135 2002
6,856,787 Wireless communications systems and methods using satellite-linked remote terminal interface subsystems 132 2002
6,999,720 Spatial guardbands for terrestrial reuse of satellite frequencies 137 2002
7,006,789 Space-based network architectures for satellite radiotelephone systems 124 2002
6,937,857 Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems 133 2002
6,785,543 Filters for combined radiotelephone/GPS terminals 129 2003
2003/0149,986 Security system for defeating satellite television piracy 157 2003
2004/0240,525 Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points 157 2003
2004/0121,727 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode 124 2003
6,879,829 SYSTEMS AND METHODS FOR HANDOVER BETWEEN SPACE BASED AND TERRESTRIAL RADIOTERMINAL COMMUNICATIONS, AND FOR MONITORING TERRESTRIALLY REUSED SATELLITE FREQUENCIES AT A RADIOTERMINAL TO REDUCE POTENTIAL INTERFERENCE 138 2004
2005/0041,619 Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers 130 2004
2005/0090,256 Systems and methods for mobility management in overlaid mobile communications systems 128 2004
2005/0079,816 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 117 2004
2005/0136,836 Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems 129 2005
2005/0164,700 Satellite with different size service link antennas and radioterminal communication methods using same 126 2005
2005/0227,618 Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation 145 2005
2005/0164,701 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 143 2005
2005/0181,786 Coordinated satellite-terrestrial frequency reuse 131 2005
2005/0239,403 Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network 120 2005
2005/0239,404 Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods 119 2005
2005/0239,399 Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods 135 2005
2005/0260,947 Satellite communications systems and methods using radiotelephone location-based beamforming 137 2005
2005/0260,984 Systems and methods for space-based use of terrestrial cellular frequency spectrum 151 2005
2005/0245,192 Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications 116 2005
2005/0221,757 Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems 117 2005
2005/0282,542 Systems and methods for terrestrial use of cellular satellite frequency spectrum 124 2005
2005/0288,011 Methods of ground based beamforming and on-board frequency translation and related systems 128 2005
2005/0265,273 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 130 2005
2005/0272,369 Coordinated satellite-terrestrial frequency reuse 134 2005
2006/0040,659 Spatial guardbands for terrestrial reuse of satellite frequencies 95 2005
 
THERMO FUNDING COMPANY LLC (15)
5,303,286 Wireless telephone/satellite roaming system 376 1991
5,448,623 Satellite telecommunications system using network coordinating gateways operative with a terrestrial communication system 273 1995
5,619,525 Closed loop power control for low earth orbit satellite communications system 196 1995
6,091,933 Multiple satellite system power allocation by communication link optimization 144 1997
6,067,442 Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways 193 1997
6,097,752 Closed loop power control for low earth orbit satellite communications system 143 1997
5,884,142 Low earth orbit distributed gateway communication system 182 1997
6,101,385 Satellite communication service with non-congruent sub-beam coverage 168 1997
6,418,147 Multiple vocoder mobile satellite telephone system 226 1998
6,233,463 Automatic satellite terrestrial mobile terminal roaming system and method 154 1998
6,160,994 Interactive fixed and mobile satellite network 180 1998
6,775,251 Satellite communication system providing multi-gateway diversity and improved satellite loading 144 1998
6,253,080 Low earth orbit distributed gateway communication system 131 1999
6,240,124 Closed loop power control for low earth orbit satellite communications system 178 1999
2004/0072,539 Resource allocation to terrestrial and satellite services 137 2003
 
ASULAB S.A. (12)
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
2002/0167,995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals 2002
 
ERICSSON INC. (6)
5,631,898 Cellular/satellite communications system with improved frequency re-use 167 1995
5,848,060 Cellular/satellite communications system with improved frequency re-use 219 1995
6,157,811 Cellular/satellite communications system with improved frequency re-use 190 1996
5,812,947 Cellular/satellite communications systems with improved frequency re-use 180 1996
6,134,437 Dual-mode satellite/cellular phone architecture with physically separable mode 177 1997
6,052,560 Satellite system utilizing a plurality of air interface standards and method employing same 143 1997
 
HUGHES ELECTRONICS CORPORATION (5)
6,735,437 Communication system employing reuse of satellite spectrum for terrestrial communication 132 1998
6,339,707 Method and system for providing wideband communications to mobile users in a satellite-based network 177 1999
6,628,919 Low-cost multi-mission broadband communications payload 142 2000
2004/0203,393 System and method for offsetting channel spectrum to reduce interference between two communication networks 128 2002
6,975,837 Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems 134 2003
 
ICO SERVICES LIMITED (3)
6,324,405 Communications apparatus and method for mobile platforms having a plurality of users 156 1997
6,072,430 Satellite terminal position determination 138 1998
2002/0122,408 Satellite communications with satellite routing according to channels assignment signals 135 2002
 
BROADBAND INVESTMENTS, LTD. (2)
5,761,605 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals 160 1996
6,169,878 Apparatus and method for transmitting terrestrial signals on a common frequency with satellite transmissions 143 1997
 
CELSAT CORPORATION (2)
5,446,756 Integrated cellular communications system 325 1993
5,511,233 System and method for mobile communications in coexistence with established communications systems 246 1994
 
DBSD SERVICES LIMITED (2)
6,201,967 Communications apparatus and method 134 1997
6,256,497 Interworking between telecommunications networks 156 1998
 
INTELLECTUAL VENTURES I LLC (2)
5,394,561 Networked satellite and terrestrial cellular radiotelephone systems 231 1993
6,157,834 Terrestrial and satellite cellular network interoperability 142 1997
 
MOBILE SATELLITE VENTURES, LP (2)
6,449,461 System for mobile communications in coexistence with communication systems having priority 146 1996
2005/0201,449 Code synchronization in CDMA satellite wireless communications system using uplink channel detection 9 2005
 
OPTIS CELLULAR TECHNOLOGY, LLC (2)
5,937,332 Satellite telecommunications repeaters and retransmission methods 190 1997
6,052,586 Fixed and mobile satellite radiotelephone systems and methods with capacity sharing 172 1997
 
QUALCOMM INCORPORATED (2)
4,901,307 Spread spectrum multiple access communication system using satellite or terrestrial repeaters 1419 1986
5,991,345 Method and apparatus for diversity enhancement using pseudo-multipath signals 158 1995
 
AGENCE SPATIALE EUROPEENNE (1)
5,765,098 Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites 169 1996
 
ALCATEL CANADA INC. (1)
6,445,926 Use of sectorized polarization diversity as a means of increasing capacity in cellular wireless systems 15 1998
 
CDC PROPRIETE INTELLECTUELLE (1)
6,198,730 Systems and method for use in a dual mode satellite communications system 143 1998
 
CORNELL RESEARCH FOUNDATION, INC. (1)
5,584,046 Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization 164 1994
 
ERICSSON GE MOBILE COMMUNICATIONS INC. (1)
5,555,257 Cellular/satellite communications system with improved frequency re-use 282 1995
 
FUJITSU LIMITED (1)
6,023,605 Dual layer satellite communications system and geostationary satellite therefor 134 1997
 
GEC-MARCONI HAZELTINE CORPORATION (1)
5,872,544 Cellular antennas with improved front-to-back performance 10 1997
 
HARRIS CORPORATION (1)
6,418,316 Increasing channel capacity of wireless local loop via polarization diversity antenna distribution scheme 11 1998
 
IWICS INC. (1)
6,785,510 Routing in a multi-station network 69 2000
 
JPMORGAN CHASE BANK, N.A. (1)
5,852,721 Method and apparatus for selectively retrieving information from a source computer using a terrestrial or satellite interface 292 1997
 
KABUSHIKI KAISHA TOSHIBA (1)
5,754,961 Radio communication system including SDL having transmission rate of relatively high speed 74 1995
 
LEO ONE IP, L.L.C. (1)
5,926,758 Radio frequency sharing methods for satellite systems 147 1996
 
LOCKHEED MARTIN CORPORATION (1)
5,907,541 Architecture for an integrated mobile and fixed telecommunications system including a spacecraft 157 1997
 
MICROSOFT CORPORATION (1)
6,085,094 Method for optimizing spectral re-use 143 1998
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
2003/0003,815 Communication satellite/land circuits selection communications system 129 2002
 
MOBILE SATELLITE VENTURES, LLP (1)
2005/0118,948 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode 127 2004
 
MOBILE SATELLITE VENTURES, LP (1)
2005/0026,606 Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference 118 2004
 
MOTOROLA, INC. (1)
6,526,278 Mobile satellite communication system utilizing polarization diversity combining 9 2000
 
OTTEN, DAVID D. (1)
5,339,330 Integrated cellular communications system 295 1991
 
PACWEST HOLDING CORPORATION (1)
6,198,921 Method and system for providing rural subscriber telephony service using an integrated satellite/cell system 144 1998
 
SISVEL INTERNATIONAL S.A. (1)
6,377,817 Asymmetric data transmission for use in a multi-modulation environment 11 2000
 
SKYWORKS SOLUTIONS, INC. (1)
6,411,824 Polarization-adaptive antenna transmit diversity system 60 1998
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (1)
2004/0266,339 Method and architecture for wireless communication networks using cooperative relaying 67 2004
 
UNWIRED PLANET, LLC (1)
5,724,666 Polarization diversity phased array cellular base station and associated methods 120 1995
 
WENGEN WIRELESS LLC (1)
6,011,951 Technique for sharing radio frequency spectrum in multiple satellite communication systems 135 1997
 
WI-LAN INC. (1)
6,549,759 Asymmetric adaptive modulation in a wireless communication system 31 2001

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ATC TECHNOLOGIES, LLC (38)
8,270,898 Satellite-band spectrum utilization for reduced or minimum interference 1 2008
7,783,287 Satellite radiotelephone systems, methods, components and devices including gated radiotelephone transmissions to ancillary terrestrial components 16 2008
8,238,818 Satellite communications systems and methods using radiotelephone location-based beamforming 0 2008
7,792,488 Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength 23 2009
7,978,135 Antenna beam forming systems/methods using unconstrained phase response 3 2009
8,265,637 Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference 1 2009
7,974,575 Methods of reducing interference including applying weights to provide correction signals and related systems 2 2009
7,970,346 Methods of reducing interference including calculation of weights based on errors and related systems 3 2009
7,890,050 Methods of reducing interference including determination of feeder link signal error and related systems 5 2009
8,045,975 Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint 5 2009
7,796,985 Systems and methods for packing/unpacking satellite service links to/from satellite feeder links 16 2009
8,433,241 Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems 0 2009
8,023,954 Systems and methods for controlling a cellular communications system responsive to a power level associated with a wireless transmitter 5 2009
7,890,097 Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference 4 2009
8,285,278 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode 0 2009
7,899,002 Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes 0 2009
8,369,775 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 0 2009
8,068,828 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode 0 2009
8,073,394 Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals 0 2009
7,953,373 Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals 3 2009
7,917,135 Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse 8 2009
8,369,776 Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations 1 2009
8,078,101 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode 3 2009
8,055,257 Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network 5 2009
8,274,925 Retaining traffic channel assignments for satellite terminals to provide lower latency communication services 0 2010
8,520,561 Systems, methods and network components that provide different satellite spot beam return carrier groupings and reuse patterns 0 2010
7,999,735 Radioterminals and associated operating methods that transmit position information responsive to rate of change of position 0 2010
8,108,004 Co-channel wireless communication methods and systems using relayed wireless communications 2 2010
8,339,308 Antenna beam forming systems, methods and devices using phase adjusted least squares beam forming 0 2010
8,412,126 Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction 0 2010
8,576,769 Systems and methods for adaptive interference cancellation beamforming 0 2010
8,285,225 Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments 0 2010
7,974,619 Systems and methods for mobility management in overlaid mobile communications systems 3 2010
8,655,398 Communications systems and methods including emission detection 0 2011
8,340,592 Radioterminals and operating methods that receive multiple measures of information from multiple sources 0 2011
8,131,293 Systems and methods for mobility management in overlaid mobile communications systems 1 2011
8,145,126 Satellite-band spectrum utilization for reduced or minimum interference 0 2011
8,238,819 Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint 1 2011
 
ATC Technologies (1)
8,193,975 Iterative antenna beam forming systems/methods 1 2009
 
ATC Technologies, Inc. (1)
8,744,360 Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods 0 2010
 
INTEL CORPORATION (1)
8,515,359 Method and apparatus to provide low cost transmit beamforming for network devices 0 2005
 
MOTOROLA MOBILITY LLC (1)
7,684,813 Method and apparatus for establishing direct communication for mobiles in a radio communication system 10 2003
 
NAVINI NETWORKS, INC. UNDER THE NAME OF CISCO-NAVINI NETWORKS, INC. (1)
7,778,211 Method for computing a downlink beamforming weighting vector based on up link channel information 6 2007
 
ST WIRELESS SA (1)
7,831,252 Method, user equipment and network for performing a handover for user equipments in peer-to-peer communication mode, to a cell whose link performance is a predefined value higher than that of the active cell 1 2004
 
Thales Alenia Space France (1)
8,169,955 Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links 1 2007

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