US Patent No: 5,267,261

Number of patents in Portfolio can not be more than 2000

Mobile station assisted soft handoff in a CDMA cellular communications system

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Abstract

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In a code division multiple access (CDMA) spread spectrum cellular communication system in which a mobile station user communicates with another system user via at least one base station, wherein each base station transmits a common pilot signal of a different code phase with respect to other base stations in said system, a method for directing communications between said mobile station user and said base stations. The mobile station monitors the signal strength of pilots and reports the measured signal strength to a system controller via the base station through which it is communicating. Command messages from the system controller to a new base station and the mobiles station establishes communication through the new base station in addition to the communication through the current base station. When the mobile station detects the falling below a predetermined level of the signal strength of a pilot corresponding to at least one of the base stations through which the mobile station is communicating, the mobile station reports the measured signal strength indicative of the corresponding base station to the system controller via the base stations through which it is communicating. Command messages from the system controller to the identified base station and the mobiles station terminates communication through the corresponding base station while communications through the other base station or base stations continue.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
QUALCOMM INCORPORATEDSAN DIEGO, CA17985

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blakeney, II Robert D San Diego, CA 14 2413
Karmi, Gadi San Diego, CA 54 2632
Tiedemann, Jr Edward G San Diego, CA 188 9291
Weaver, Jr Lindsay A San Diego, CA 56 9595

Cited Art Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (3)
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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (16)
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NTT DOCOMO, INC. (25)
6,728,227 Mobile radio communication system, mobile station, and method for controlling diversity hand-over branch 12 1999
7,693,106 Neighboring base station information update method, information management method for cell search in mobile communications system, cell search method of mobile station, mobile communications system, mobile station, base station and control station 6 2000
* 7,072,655 Mobile communication system and method for controlling receiving quality 11 2001
* 2002/0098,838 Mobile communication system and method for controlling receiving quality 3 2001
7,403,777 Mobile communication system, mobile station and diversity handover branch control method 4 2004
* 2004/0180,662 Mobile communication system, mobile station and diversity handover branch control method 0 2004
7,289,809 Mobile communication system, mobile station and diversity handover branch control method 3 2006
* 2006/0128,386 Mobile communication system, mobile station and diversity handover branch control method 1 2006
8,275,133 Method and system for mobile communications 0 2006
7,664,507 Method and system for mobile communications 4 2006
7,570,950 Mobile communication system, mobile station and diversity handover branch control method 3 2006
* 2007/0058,589 MOBILE COMMUNICATION SYSTEM, MOBILE STATION AND DIVERSITY HANDOVER BRANCH CONTROL METHOD 4 2006
7,630,716 Method and system for mobile communications 23 2007
7,792,531 Method and system for mobile communications 1 2007
7,873,014 Mobile communication system, mobile station and diversity handover branch control method 1 2007
* 2008/0056,197 MOBILE COMMUNICATION SYSTEM, MOBILE STATION AND DIVERSITY HANDOVER BRANCH CONTROL METHOD 7 2007
8,064,908 Mobile communication system and mobile station performing diversity handover 0 2008
* 2009/0011,766 MOBILE COMMUNICATION SYSTEM AND MOBILE STATION PERFORMING DIVERSITY HANDOVER 4 2008
7,953,414 Method and system for mobile communications 5 2009
8,331,935 Method and system for mobile communications 4 2009
8,259,675 Method and system for mobile communications 1 2009
8,542,835 Method and system for mobile communications 0 2009
7,907,730 Method and system for mobile communications 1 2009
RE43296 Mobile communication system, mobile station and diversity handover branch control method 0 2009
8,090,373 Center for a mobile communication system performing diversity handover 0 2010
 
OPTIS WIRELESS TECHNOLOGY, LLC (2)
7,346,126 Method and apparatus for channel estimation using plural channels 2 2001
* 2003/0099,306 Method and apparatus for channel estimation using plural channels 20 2001
 
CORE WIRELESS LICENSING S.A.R.L (1)
* 6,009,328 Inter-exchange soft handoff in a cellular telecommunications system 60 1996
 
COMMSCOPE TECHNOLOGIES LLC (15)
* 5,852,651 Cellular communications system with sectorization 121 1994
* 6,112,086 Scanning RSSI receiver system using inverse fast fourier transforms for a cellular communications system with centralized base stations and distributed antenna units 55 1997
6,556,551 Multi-frequency pilot beacon for CDMA systems 71 1999
RE40564 Cellular communications system with sectorization 14 2000
7,263,293 Indoor wireless voice and data distribution system 41 2002
* 2004/0203,704 Indoor wireless voice and data distribution system 28 2002
8,958,789 Distributed digital antenna system 12 2003
* 2004/0106,435 Distributed digital antenna system 54 2003
7,599,711 Systems and methods for analog transport of RF voice/data communications 4 2006
* 2007/0243,899 SYSTEMS AND METHODS FOR ANALOG TRANSPORT OF RF VOICE/DATA COMMUNICATIONS 22 2006
8,737,454 Modular wireless communications platform 19 2007
8,583,100 Distributed remote base station system 16 2007
RE43964 Cellular communications system with sectorization 3 2007
9,001,811 Method of inserting CDMA beacon pilots in output of distributed remote antenna nodes 12 2009
RE45321 Cellular communications system with sectorization 4 2012
 
GE TECHNOLOGY DEVELOPMENT, INC. (GETD) (3)
* 7,444,153 Communication apparatus controller, communication apparatus and communication system 3 2004
* 2005/0094,608 Communication control apparatus, communication apparatus and communication system 8 2004
8,200,148 Communication control apparatus, communication apparatus and communication system 1 2008
 
HITACHI, LTD. (1)
6,975,604 Base station controller and mobile station 52 2000
 
SAP PORTALS ISRAEL LTD. (1)
* 2013/0083,682 DOWNLINK TIMING REFERENCE FOR COORDINATED MULTIPOINT COMMUNICATION 4 2012
 
InterDigital Technology Corporation (14)
* 6,754,497 Seamless handoff system and method 7 2000
7,929,498 Adaptive forward power control and adaptive reverse power control for spread-spectrum communications 35 2001
7,502,406 Automatic power control system for a code division multiple access (CDMA) communications system 11 2002
* 8,213,994 Mobile communications system and method for providing common channel coverage using beamforming antennas 0 2003
* 2005/0014,533 Mobile communications system and method for providing common channel coverage using beamforming antennas 11 2003
* 2004/0063,430 Mobile communications system and method for providing mobile unit handover in wireless communication systems that employ beamforming antennas 28 2003
7,756,190 Transferring voice and non-voice data 2 2003
7,903,613 Code division multiple access (CDMA) communication system 8 2004
7,535,874 Method and apparatus for adaptive power control for spread-spectrum communications 26 2004
7,706,332 Method and subscriber unit for performing power control 10 2005
8,737,363 Code division multiple access (CDMA) communication system 1 2011
8,861,466 Mobile communication system and method for providing common channel coverage using beamforming antennas 0 2012
9,125,204 Mobile communication system and method for providing common channel coverage using beamforming antennas 0 2014
9,414,383 Mobile communication system and method for providing common channel coverage using beamforming antennas 0 2015
 
APPLE INC. (5)
* 5,974,318 Method and system for increasing capacity and improving performance of a cellular network 27 1997
* 6,310,856 CDMA communications system having a searcher receiver and method therefor 33 1998
* 6,112,089 Method and system for increasing capacity and improving performance of a cellular network 29 1999
* 2004/0213,198 Routing quality-of-service traffic in a wireless system 13 2003
* 7,649,994 System and method for decoding CDMA quality channel 0 2003
 
GOOGLE TECHNOLOGY HOLDINGS LLC (17)
* 5,548,808 Method for performing a handoff in a communication system 64 1993
* 5,889,768 Method of and apparatus for pilot channel acquisition 50 1996
* 6,160,799 Method of and apparatus for pilot set maintenance 13 1996
* 5,950,131 Method and apparatus for fast pilot channel acquisition using a matched filter in a CDMA radiotelephone 169 1996
* 5,812,540 Method and apparatus for mitigating an orphan condition in a spread-spectrum communication system 22 1996
* 5,987,012 Method of handing off and a wireless communication device 40 1996
* 5,920,549 Method of handing off and a wireless communication device 65 1996
* 5,854,785 System method and wireless communication device for soft handoff 44 1996
* 5,970,058 Method and apparatus for freeing a frame to aid in handoff determination in a code division multiple access communication system 24 1997
6,175,587 Communication device and method for interference suppression in a DS-CDMA system 91 1997
6,175,588 Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system 159 1997
* 6,161,015 Method for improving communication coverage in multi-cell communication systems using location information 22 1998
* 6,104,927 Communication system, mobile station, and method for mobile station registration 13 1998
* 6,909,707 Method and apparatus for pseudo-random noise offset reuse in a multi-sector CDMA system 56 2001
* 7,043,226 Variable expiration parameter of a wireless communication device based upon signal strength 101 2003
* 2005/0136,925 Variable expiration parameter of a wireless communication device based upon signal strength 10 2003
8,874,105 Method and apparatus for obtaining overhead information within a communication system 0 2010
 
WICOM SOLUTIONS CO., LTD. (1)
* 5,920,551 Channel structure with burst pilot in reverse link 41 1996
 
CELLCO PARTNERSHIP D/B/A VERIZON WIRELESS (2)
* 6,035,197 Method and system for providing a handoff from a CDMA cellular telephone system 33 1994
6,240,292 Method and system for providing a handoff from a CDMA cellular telephone system 23 1999
 
LENOVO INNOVATIONS LIMITED (HONG KONG) (2)
* 6,904,080 Receiving circuit, mobile terminal with receiving circuit, and method of receiving data 3 1999
7,016,320 Subscriber station, network control means and method for carrying out inter-frequency measurements in a mobile communication system 42 2000
 
Canon Kabushiki Kaisha (10)
* 5,722,068 Imminent change warning 36 1994
* 5,627,835 Artificial window size interrupt reduction system for CDMA receiver 42 1995
* 5,732,347 Imminent change warning 54 1995
* 5,850,394 CDMA communications system using multiplexed signaling data lines 6 1997
* 6,018,655 Imminent change warning 39 1997
* 5,966,430 Communication apparatus capable of communicating data and speech selectively through single communication line 7 1997
* 6,256,501 Cellular mobile telecommunications system for controlling a hand-off by a mobile station 24 1998
* 7,159,042 Method and device for communicating a message on a network and systems using them 10 2000
7,747,783 Method and device for communicating a message on a network and systems using them 5 2006
* 2006/0136,603 Method and device for communicating a message on a network and systems using them 6 2006
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 5,457,680 Data gateway for mobile data radio terminals in a data communication network 160 1993
* 5,448,569 Handoff monitoring in cellular communication networks using slow frequency hopping 103 1994
 
AT&T IPM CORP. (1)
* 5,410,538 Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system 142 1993
 
LUCENT TECHNOLOGIES INC. (13)
* 5,697,053 Method of power control and cell site selection 53 1994
* 5,794,149 Base station controlled handoff method and apparatus 76 1995
* 6,507,568 Enhanced access in wireless communication systems under rapidly fluctuating fading conditions 15 1997
* 6,097,954 Method for performing a soft handoff 29 1997
6,181,943 Method and apparatus for inter-frequency hand-off in wireless communication systems 41 1998
* 6,381,235 Wireless CDMA system having a unique forward configuration control channel 10 1998
* 6,201,969 Control of handoff in CDMA cellular systems 32 1998
* 6,374,103 Method and system for overhead message updates 19 1998
* 6,539,225 Seamless data network telecommunication service during mobile wireless call handoff 55 1999
6,594,243 Methods and apparatus for enhanced soft handoff in a CDMA wireless communication system 15 1999
* 6,603,972 Apparatus, method and system for voice communication hand-off in a mobile packet data network environment 16 1999
6,873,845 Method of power control and cell site selection based upon path gain and interference level 3 2002
* 2005/0070,316 Controlled timing during soft hand offs in a wireless system 0 2003
 
LSI LOGIC CORPORATION (1)
* 6,804,519 Forward link inter-generation soft handoff between 2G and 3G CDMA systems 13 2003
 
ADC Wireless, Inc. (1)
7,962,111 Distributed automatic gain control system 34 2009
 
PANTECH & CURITEL COMMUNICATIONS, INC. (1)
* 2007/0054,664 WIRELESS COMMUNICATION TERMINAL AND METHOD FOR EMERGENCY CALL CONNECTION USING HAND-OFF 3 2006
 
UTSTARCOM KOREA LIMITED (C/O OF UTSTARCOM, INC.) (1)
* 6,781,966 Forward direction power control method using backward direction power control sub-channel for mobile communication system 6 2000
 
FUJITSU LIMITED (4)
* 6,108,548 Mobile station and soft handoff method 28 1997
* 7,127,252 Radio terminal equipment 5 2000
7,236,788 Soft hand-off in cellular mobile communications networks 10 2004
* 8,189,513 Radio base station apparatus and base station controller 0 2011
 
Sprint Spectrum L.P. (3)
7,693,521 Method and system for mobile station handoff 9 2004
7,894,816 Method of selecting carrier frequency for call origination 4 2007
* 9,426,707 Handoff based on uplink and downlink reference signals 0 2014
 
MOTOROLA, INC. (2)
* 5,590,172 Method and system for transferring a radiotelephone call from one coverage area to another 32 1996
* 2007/0097,924 METHOD AND SYSTEM FOR INTER-TECHNOLOGY ACTIVE HANDOFF OF A HYBRID COMMUNICATION DEVICE 9 2006
 
THERMO FUNDING COMPANY LLC (1)
* 6,661,996 Satellite communication system providing multi-gateway diversity to a mobile user terminal 8 1998
 
INFINEON TECHNOLOGIES AG (1)
6,301,288 Method of chip interleaving in direct sequence spread spectrum communications 6 2000
 
AT&T INTELLECTUAL PROPERTY II, L.P. (2)
8,036,164 System and method for selecting a transmission channel in a wireless communication system that includes an adaptive array 28 2006
8,855,081 System and method for selecting a transmission channel in a wireless communication system that includes an adaptive array 0 2011
 
ORANGE (1)
6,859,654 Method for transmitting measurement reports in a mobile communications system 29 2000
 
DENSO CORPORATION (13)
7,133,675 Forward link based rescue channel method and apparatus for telecommunication systems 7 2001
7,187,930 Retry limits for connection rescue procedures in telecommunication systems 2 2001
* 2002/0065,071 Retry limits for connection rescue procedures in telecommunication systems 2 2001
7,006,821 Method and apparatus for dynamically determining a mobile station's active set during a connection rescue procedure 10 2001
* 2002/0111,158 Method and apparatus for dynamically determining a mobile station's active set during a connection rescue procedure 25 2001
6,928,285 Minimum interference multiple-access method and system for connection rescue 4 2001
* 2002/0142,772 Minimum interference multiple-access method and system for connection rescue 11 2001
6,996,391 Forward-link rescue synchronization method and apparatus 25 2001
* 2002/0119,787 Forward-link rescue synchronization method and apparatus 8 2001
7,010,319 Open-loop power control enhancement for blind rescue channel operation 14 2002
* 2002/0137,535 Open-loop power controlenhancement for blindrescue channel operation 17 2002
* 2006/0046,767 Open-loop power control enhancement for blind rescue channel operation 10 2005
* 2007/0015,512 Forward link based rescue channel method and apparatus for telecommunication systems 6 2006
 
INTEL CORPORATION (28)
6,088,590 Method and system for mobile controlled handoff and link maintenance in spread spectrum communication 34 1994
5,648,982 Spread spectrum transmitter 45 1994
5,832,028 Method and apparatus for coherent serial correlation of a spread spectrum signal 4 1995
5,818,820 Method and system for data link expansion or contraction using spread spectrum TDMA communication 138 1995
5,768,264 Time division multiple access base station supporting ISDN messages 10 1995
5,754,584 Non-coherent spread-spectrum continuous-phase modulation communication system 27 1995
5,754,585 Method and apparatus for serial noncoherent correlation of a spread spectrum signal 5 1995
5,692,007 Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation 13 1995
5,680,414 Synchronization apparatus and method for spread spectrum receiver 37 1995
5,671,219 Communication protocol for spread spectrum communication 44 1995
5,659,574 Multi-bit correlation of continuous phase modulated signals 20 1995
5,648,955 Method for power control in a TDMA spread spectrum communication system 117 1995
5,629,956 Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal 12 1995
5,627,856 Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators 18 1995
5,610,940 Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal 50 1995
* 6,041,046 Cyclic time hopping in time division multiple access communication system 28 1995
* 6,005,856 Communication protocol for spread spectrum wireless communication system 66 1996
6,161,013 Wireless communication system and method 90 1996
* 5,991,625 Spread spectrum wireless telephone system 32 1996
5,856,998 Method and apparatus for correlating a continuous phase modulated spread spectrum signal 8 1996
6,112,080 Wireless communication method and system 154 1996
5,787,076 Multi-mode TDMA spread spectrum communication system 28 1997
5,881,100 Method and apparatus for coherent correlation of a spread spectrum signal 15 1997
* 6,985,466 Downlink signal processing in CDMA systems utilizing arrays of antennae 77 1999
* 6,496,694 Wireless local loop with intelligent base station 31 2000
* 7,209,745 Cellular wireless re-use structure that allows spatial multiplexing and diversity communication 19 2000
* 7,072,311 Method and apparatus for initiating a reverse link intergenerational handoff in a CDMA communication system 14 2000
6,947,469 Method and Apparatus for wireless spread spectrum communication with preamble processing period 8 2002
 
MITSUBISHI DENKI KABUSHIKI KAISHA (3)
* 5,432,651 Data conversion device and recording/reproduction apparatus 16 1993
* 7,047,003 Mobile communication system, mobile unit and network host processor 6 2003
* 2005/0186,957 Mobile communication system, mobile unit and network host processor 1 2003
 
TAMIRAS PER PTE. LTD., LLC (1)
* 7,447,506 Apparatus and method for reducing network congestion 39 2002
 
WI-LAN INC. (1)
* 6,175,560 Apparatus and method of establishing and maintaining communication paths in a wireless telecommunications system 17 1998
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (8)
* 6,278,877 Handover method for mobile wireless station 22 1993
* 7,079,847 Controller and transceiver employable in a wireless communications network 8 2001
* 2002/0173,271 Controller and transceiver employable in a wireless communications network 20 2001
8,478,281 Cell phone extension using wireless piconet 0 2007
* 2009/0156,167 Cell phone extension using wireless piconet 1 2007
* 8,417,287 Virtual gateway node for dual-mode wireless phones 1 2011
* 2012/0069,765 VIRTUAL GATEWAY NODE FOR DUAL-MODE WIRELESS PHONES 3 2011
8,731,569 Cell phone extension using wireless piconet 0 2013
 
DOT WIRELESS, INC. (1)
6,959,033 System and method for assigning combiner channels in spread spectrum communications 3 2000
 
ENTERPRISE SYSTEMS TECHNOLOGIES S.A.R.L. (1)
* 5,898,924 Method for connection handling in communication systems with wireless signal transmission 4 1995
 
OPTIS CELLULAR TECHNOLOGY, LLC (2)
6,980,803 Using statistically ascertained position for starting synchronization searcher during diversity handover 5 2001
* 2002/0068,567 Using statistically ascertained position for starting synchronization searcher during diversity handover 5 2001
 
I.C. COM LTD. (1)
* 6,061,386 Method of chip interleaving in direct sequence spread spectrum communications 7 1997
 
CINTERION WIRELESS MODULES GMBH (1)
* 5,539,749 Method for merging data streams 29 1994
 
Adaptix, Inc. (18)
8,738,020 Multi-carrier communications with adaptive cluster configuration and switching 13 2009
8,797,970 Method and system for switching antenna and channel assignments in broadband wireless networks 17 2009
8,743,717 Multi-carrier communications with adaptive cluster configuration and switching 13 2011
8,750,888 Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems 1 2011
8,964,719 OFDMA with adaptive subcarrier-cluster configuration and selective loading 6 2011
8,891,414 Multi-carrier communications with adaptive cluster configuration and switching 8 2012
8,743,729 Multi-carrier communications with adaptive cluster configuration and switching 11 2012
8,760,992 Method and system for switching antenna and channel assignments in broadband wireless networks 11 2013
8,767,702 Multi-carrier communications with adaptive cluster configuration and switching 10 2013
8,750,238 Multi-carrier communications with adaptive cluster configuration and switching 11 2013
8,958,386 Multi-carrier communications with adaptive cluster configuration and switching 6 2014
8,934,445 Multi-carrier communications with adaptive cluster configuration and switching 6 2014
8,934,375 OFDMA with adaptive subcarrier-cluster configuration and selective loading 6 2014
9,191,138 OFDMA with adaptive subcarrier-cluster configuration and selective loading 0 2015
9,344,211 OFDMA with adaptive subcarrier-cluster configuration and selective loading 0 2015
9,219,572 OFDMA with adaptive subcarrier-cluster configuration and selective loading 1 2015
9,203,553 OFDMA with adaptive subcarrier-cluster configuration and selective loading 1 2015
9,210,708 OFDMA with adaptive subcarrier-cluster configuration and selective loading 1 2015
 
HUAWEI TECHNOLOGIES CO., LTD. (2)
* 7,006,473 Soft handover method for CDMA mobile communication system 5 2002
* 2002/0061,751 Soft handover method for CDMA mobile communication system 3 2002
 
BEIJING XINWEI TELECOM TECHNOLOGY CO., LTD. (1)
6,980,527 Smart antenna CDMA wireless communication system 29 2000
 
NEC CORPORATION (18)
* 5,420,863 Mobile communication system with cell-site switching for intra-cell handoff 69 1993
* 5,436,956 Method and arrangement for reducing the number of handoff requests in a cellular mobile communications system 22 1993
* 5,844,898 Method of radio channel switching over in a mobile radio communications system 5 1996
* 5,771,451 Method of transmission power control in a cellular mobile communication system and apparatus thereof 92 1996
* 5,987,013 Handoff control with a pilot used in a cell of a neighboring cell in a CDMA mobile communication network on a service frequency of the neighboring cell 28 1997
* 6,111,864 Hand-off method and apparatus in CDMA cellular system 29 1997
* 6,418,320 Mobile station and a method of reducing interference among radio channels in the mobile station 28 1998
* 6,400,953 CDMA type mobile radio communication system capable of realizing an effective system operation without excess and deficiency of radio base stations simultaneously connected 25 1998
* 6,141,555 Cellular communication system, and mobile and base stations used in the same 26 1998
* 6,140,961 Directivity control circuitry for an adaptive antenna 3 1999
* 6,477,159 Mobile communication system and a method thereof 15 1999
* 6,535,740 System and method of controlling transmission electric power in a CDMA base station 15 1999
6,539,233 Call control method in mobile communication and system therefor 36 2000
* 6,947,746 Mobile communications system, mobile station, control method and recording medium 4 2002
* 2003/0045,291 Mobile communications system, mobile station, control method and recording medium 4 2002
RE39735 Cellular communication system, and mobile and base stations used in the same 0 2002
* RE41891 Cellular communication system, and mobile and base stations used in the same 0 2004
* 2004/0229,617 Cellular communication system, and mobile and base stations used in the same 8 2004
 
VIAVI SOLUTIONS INC. (1)
* 6,061,565 Mobile radio systems 80 1997
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
* 2011/0195,743 METHOD AND APPARATUS FOR POWER MANAGEMENT 5 2009
 
QUALCOMM INCORPORATED (365)
* 5,490,165 Demodulation element assignment in a system capable of receiving multiple signals 261 1993
* 6,157,668 Method and apparatus for reducing the average transmit power of a base station 67 1994
* 5,758,266 Multiple frequency communication device 44 1994
* 5,697,055 Method and apparatus for handoff between different cellular communications systems 124 1994
* 5,577,022 Pilot signal searching technique for a cellular communications system 183 1994
* 5,602,833 Method and apparatus for using Walsh shift keying in a spread spectrum communication system 180 1994
* 5,691,974 Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy 208 1995
* 5,625,876 Method and apparatus for performing handoff between sectors of a common base station 172 1995
* 5,594,718 Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative access communication system 152 1995
* 5,608,722 Multi-user communication system architecture with distributed receivers 195 1995
* 5,680,395 Method and apparatus for time division duplex pilot signal generation 58 1995
* 6,108,364 Time division duplex repeater for use in a CDMA system 81 1995
* 5,907,813 Signal acquisition in a wireless communication system by transmitting repeated access probes from a terminal to a hub 25 1995
* 5,867,763 Method and apparatus for integration of a wireless communication system with a cable T.V. system 72 1996
* 5,839,052 Method and apparatus for integration of a wireless communication system with a cable television system 85 1996
* 5,978,679 Coexisting GSM and CDMA wireless telecommunications networks 73 1996
* 5,884,187 Method and apparatus for providing centralized power control administration for a set of base stations 125 1996
* 5,940,762 Inter-system calling supporting inter-system soft handoff 55 1996
* 5,926,470 Method and apparatus for providing diversity in hard handoff for a CDMA system 107 1996
* 5,917,811 Method and apparatus for measurement directed hard handoff in a CDMA system 66 1996
* 5,828,661 Method and apparatus for providing a cone of silence in a cellular communication system 64 1996
* 5,848,063 Method and apparatus for hard handoff in a CDMA system 88 1996
* 5,884,196 Method and apparatus of preserving power of a remote unit in a dispatch system 148 1996
* 5,881,368 Method and apparatus of power control in a CDMA dispatch system 120 1996
* 6,021,122 Method and apparatus for performing idle handoff in a multiple access communication system 42 1996
* 5,983,099 Method/apparatus for an accelerated response to resource allocation requests in a CDMA push-to-talk system using a CDMA interconnect subsystem to route calls 193 1996
* 5,722,053 Multiple frequency communication device 43 1996
* 5,937,019 Method and apparatus for reliable intersystem handoff in a CDMA system 58 1996
* 5,790,589 System and method for rapidly reacquiring a pilot channel 48 1996
* 5,757,767 Method and apparatus for joint transmission of multiple data signals in spread spectrum communication systems 125 1996
* 5,933,787 Method and apparatus for performing handoff between sectors of a common base station 83 1996
* 5,940,761 Method and apparatus for performing mobile assisted hard handoff between communication systems 40 1997
* 6,151,502 Method and apparatus for performing soft hand-off in a wireless communication system 107 1997
* RE39381 Establishment of a connection between a base station and a mobile station using random access channels 13 1997
* 5,987,326 Transmit power reduction for a high speed CDMA link in soft handoff 82 1997
* 5,982,758 Method and apparatus for merging neighbor lists in a CDMA mobile telephone system 49 1997
* 6,002,933 Inter-system soft handoff 28 1997
6,999,766 Method and apparatus for optimization of a cellular network 21 1997
* 5,982,760 Method and apparatus for power adaptation control in closed-loop communications 193 1997
* 5,864,760 Method and apparatus for reducing the average transmit power from a sectorized base station 54 1997
* 6,055,428 Method and apparatus for performing soft hand-off in a wireless communication system 59 1997
6,185,199 Method and apparatus for data transmission using time gated frequency division duplexing 27 1997
* 5,953,320 Method and apparatus for constructing a temporary list of neighboring base stations in a wireless communication device 31 1997
* 6,201,802 Method and apparatus for analyzing base station timing 22 1997
6,307,849 Method and system for changing forward traffic channel power allocation during soft handoff 82 1997
6,215,777 Method and apparatus for transmitting and receiving data multiplexed onto multiple code channels, frequencies and base stations 41 1997
6,377,809 Channel structure for communication systems 180 1997
6,198,928 Handover method, and a cellular radio system 28 1998
* 6,201,954 Method and system for providing an estimate of the signal strength of a received signal 44 1998
6,216,004 Cellular communication system with common channel soft handoff and associated method 140 1998
6,510,172 Multi-user communication system architecture with distributed transmitters 39 1998
6,360,100 Method for robust handoff in wireless communication system 36 1998
6,178,164 Method and apparatus for performing idle handoff in a multiple access communication system 36 1998
6,603,745 Method and apparatus for reverse link overload detection 23 1998
* 6,539,236 Establishment of a connection between a base station and a mobile station using random access channels 14 1998
* 6,151,311 Mobile station assisted timing synchronization in a CDMA communication system 47 1999
7,003,290 Measurement reporting in a telecommunication system 32 1999
* 6,181,942 Method and apparatus for providing an alert with information signal between a mobile switching center and a base station 4 1999
6,304,755 Method and apparatus for performing mobile assisted hard handoff between communication systems 43 1999
* 6,351,460 Method and apparatus for a dedicated control channel in an early soft handoff in a code division multiple access communication system 17 1999
8,064,409 Method and apparatus using a multi-carrier forward link in a wireless communication system 15 1999
* 6,778,507 Method and apparatus for beamforming in a wireless communication system 56 1999
6,563,810 Closed loop resource allocation 37 1999
6,442,398 Method and apparatus for reverse link loading estimation 26 1999
6,621,804 Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel 48 1999
* 7,206,580 Method and apparatus for performing handoff in a high speed communication system 6 1999
6,771,776 Method and apparatus for re-synchronization of a stream cipher during handoff 8 1999
6,674,736 Method and apparatus for performing idle handoff in a multiple access communication system 14 1999
7,190,687 Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network 7 2000
7,197,017 Method and apparatus for channel optimization during point-to-point protocol (PPP) session requests 9 2000
* 6,546,248 Method and apparatus for generating pilot strength measurement messages 20 2000
7,519,044 Channel structure for communication systems 0 2000
* 6,167,270 Soft handoff in the transmission of supplemental channel data 68 2000
6,526,030 Channel structure for communication systems 21 2000
6,724,739 Method for handoff between an asynchronous CDMA base station and a synchronous CDMA base station 12 2000
6,564,042 Velocity-estimation-based gain tables 19 2000
7,876,729 Intersystem base station handover 22 2000
6,850,506 Forward-link scheduling in a wireless communication system 53 2000
* 6,775,252 Dynamic adjustment of search window size in response to signal strength 33 2000
6,535,739 Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities 37 2000
7,088,701 Method and apparatus for adaptive transmission control in a high data rate communication system 21 2000
6,654,611 Method and apparatus for performing idle handoff in a multiple access communication system 3 2000
7,096,021 Method for initiating in a terminal of a cellular network the measurement of power levels of signals and a terminal 4 2000
6,751,206 Method and apparatus for beam switching in a wireless communication system 13 2000
7,006,470 Method and apparatus for performing idle handoff in a multiple access communication system 3 2000
7,099,384 Method and apparatus for time-division power assignments in a wireless communication system 29 2000
7,042,869 Method and apparatus for gated ACK/NAK channel in a communication system 40 2000
6,711,208 Estimation of traffic-to-pilot ratios 25 2000
7,945,266 Method and apparatus for call recovery in a wireless communication system 2 2000
* 2002/0077,104 Method and apparatus for call recovery in a wireless communication system 11 2000
7,567,781 Method and apparatus for power level adjustment in a wireless communication system 8 2001
6,850,499 Method and apparatus for forward power control in a communication system 83 2001
* 2002/0090,965 Method and apparatus for power level adjustment in a wireless communication system 17 2001
6,760,587 Forward-link scheduling in a wireless communication system during soft and softer handoff 108 2001
7,778,642 Method and system for processing telephone calls involving two digital wireless subscriber units that avoid double vocoding 0 2001
* 2001/0018,347 Method and system for processing telephone calls involving two digital wireless subscriber units that avoid double vocoding 4 2001
7,961,616 Method and apparatus for congestion control in a wireless communication system 6 2001
7,009,953 Method and system for changing forward traffic channel power allocation during soft handoff 14 2001
6,757,520 Method and apparatus for selecting a serving sector in a data communication system 29 2001
7,058,035 Communication system employing multiple handoff criteria 17 2001
* 2003/0002,460 Communication system employing multiple handoff criteria 8 2001
7,239,847 Method and apparatus for adaptive server selection in a data communication system 12 2001
* 2002/0196,752 Method and apparatus for adaptive server selection in a data communication system 7 2001
6,731,936 Method and system for a handoff in a broadcast communication system 47 2001
6,810,254 Method and apparatus for performing mobile assisted hard handoff between communication systems 23 2001
* 6,680,925 Method and system for selecting a best serving sector in a CDMA data communication system 14 2001
* 2003/0072,278 Method and system for selecting a best serving sector in a CDMA data communication system 3 2001
* 2003/0081,538 Multiple-access hybrid OFDM-CDMA system 93 2001
7,336,952 Method and system for hard handoff in a broadcast communication system 7 2001
* 2003/0078,044 Method and system for hard handoff in a broadcast communication system 4 2001
7,054,632 Method and apparatus for adaptive set management in a communication system 9 2001
* 2002/0197,997 Method and apparatus for adaptive set management in a communication system 2 2001
7,233,794 Method for robust handoff in wireless communication system 14 2001
8,031,622 Method and apparatus for receive diversity in a communication system 4 2002
* 2003/0156,561 Method and apparatus for receive diversity in a communication system 5 2002
* 2003/0190,924 Method and apparatus for determining receive diversity in mobile station 4 2002
7,961,682 Handoff between base stations of different protocol revisions in a CDMA system 4 2002
7,068,658 Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames 1 2002
* 7,352,722 Mitigation of link imbalance in a wireless communication system 23 2002
* 2003/0210,668 Mitigation of link imbalance in a wireless communication system 44 2002
7,339,903 Enabling foreign network multicasting for a roaming mobile node, in a foreign network, using a persistent address 42 2002
6,922,547 Methods and apparatus for supporting group communications 125 2002
* 2003/0003,938 Methods and apparatus for supporting group communications 3 2002
6,853,843 Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities 2 2002
7,457,267 Methods and apparatus for quickly exploiting a new link during hand-off in a wireless network 6 2002
7,813,740 Method and apparatus for managing imbalance in a communication system 3 2002
* 2003/0072,294 Method and apparatus for managing imbalance in a communication system 16 2002
* RE39177 Method and apparatus for performing soft hand-off in a wireless communication system 8 2002
7,139,274 Method and system for a data transmission in a communication system 42 2002
7,050,405 Method and system for a data transmission in a communication system 69 2002
* 2004/0038,697 Method and system for a data transmission in a communication system 27 2002
7,339,894 Closed loop resource allocation 9 2002
6,788,963 Methods and apparatus for operating mobile nodes in multiple a states 38 2002
* 7,010,068 Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system 2 2003
7,020,465 Controlling hand-off in a mobile node with two mobile IP clients 5 2003
* 6,728,538 Method and apparatus for generating pilot strength measurement messages 6 2003
6,961,595 Methods and apparatus for operating mobile nodes in multiple states 17 2003
* 2004/0029,586 Methods and apparatus for operating mobile nodes in multiple states 7 2003
7,746,816 Method and system for a power control in a communication system 27 2003
* 2004/0179,480 Method and system for estimating parameters of a link for data transmission in a communication system 58 2003
* 2004/0179,494 Method and system for a power control in a communication system 52 2003
* 2004/0181,569 Method and system for a data transmission in a communication system 67 2003
* 2004/0179,469 Method and system for a data transmission in a communication system 38 2003
7,356,020 Support of disparate addressing plans and dynamic HA address allocation in mobile IP 13 2003
* 2003/0223,439 Support of disparate addressing plans and dynamic HA address allocation in mobile IP 2 2003
7,453,801 Admission control and resource allocation in a communication system supporting application flows having quality of service requirements 26 2003
7,406,098 Resource allocation in a communication system supporting application flows having quality of service requirements 38 2003
* 2004/0013,089 Admission control and resource allocation in a communication system supporting application flows having quality of service requirements 43 2003
* 2003/0198,204 Resource allocation in a communication system supporting application flows having quality of service requirements 46 2003
7,564,824 Methods and apparatus for aggregating MIP and AAA messages 10 2003
* 2004/0047,348 Methods and apparatus for aggregating MIP and AAA messages 47 2003
8,649,352 Packet forwarding methods for use in handoffs 0 2003
* 2003/0193,952 Mobile node handoff methods and apparatus 89 2003
7,882,346 Method and apparatus for providing authentication, authorization and accounting to roaming nodes 6 2003
7,440,426 Method and apparatus for reverse link overload detection 1 2003
8,068,453 Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel 12 2003
* 2004/0008,644 Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel 4 2003
7,778,643 Power and timing control methods and apparatus 127 2003
7,668,573 Wireless timing and power control 57 2003
7,363,039 Method of creating and utilizing diversity in multiple carrier communication system 39 2003
* 2004/0106,412 Method of creating and utilizing diversity in multiple carrier communication system 26 2003
* 2004/0097,254 Power and timing control methods and apparatus 9 2003
8,190,163 Methods and apparatus of enhanced coding in multi-user communication systems 8 2003
7,496,073 Method and apparatus for performing idle handoff in a multiple access communication system 1 2003
8,427,936 Multiple-access hybrid OFDM-CDMA system 3 2003
* 2004/0085,892 Multiple-access hybrid OFDM-CDMA system 42 2003
7,796,563 Method and system for selecting a best serving sector in a CDMA data communication system 2 2003
8,526,510 Estimation of traffic-to-pilot ratios 0 2003
7,177,648 Method and apparatus for selecting a serving sector in a data communication system 22 2003
8,000,241 Methods and apparatus for controlling access link packet flow aggregation and resource allocation in a mobile communications system 5 2003
7,715,461 High data rate CDMA wireless communication system using variable sized channel codes 8 2004
* 7,626,922 Method and apparatus for a dedicated control channel in an early soft handoff in a code division multiple access communication system 0 2004
7,254,394 Method and system for a handoff in a broadcast communication system 3 2004
7,400,606 Method and apparatus for beam switching in a wireless communication system 7 2004
* 2004/0196,800 Method and apparatus for beam switching in a wireless communication system 4 2004
7,697,501 Methods and apparatus for separating home agent functionality 4 2004
* 2005/0174,984 Methods and apparatus for separating home agent functionality 6 2004
7,515,580 Method and apparatus for forward power control in a communication system 24 2004
* 2004/0233,867 Method and apparatus for forward power control in a communication system 24 2004
* 7,158,640 Method and apparatus for re-synchronization of a stream cipher during handoff 1 2004
6,990,337 Methods and apparatus for the utilization of core based nodes for state transfer 45 2004
* 2005/0002,242 Methods and apparatus for the utilization of core based nodes for state transfer 2 2004
7,668,541 Enhanced techniques for using core based nodes for state transfer 16 2004
* 2005/0063,324 Enhanced techniques for using core based nodes for state transfer 22 2004
8,570,880 Method and apparatus for receiving broadcast in a wireless multiple-access communications system 1 2004
* 2006/0028,995 Method and apparatus for receiving broadcast in a wireless multiple-access communications system 25 2004
7,525,937 Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity 20 2004
* 2005/0041,650 Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity 16 2004
7,912,485 Method and system for signaling in broadcast communication system 7 2004
* 2005/0201,321 Method and system for signaling in broadcast communication system 16 2004
7,212,821 Methods and apparatus for performing handoffs in a multi-carrier wireless communications system 56 2004
7,047,009 Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system 112 2004
6,993,333 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system 33 2004
* 2005/0124,345 Methods and apparatus for performing handoffs in a multi-carrier wireless communications system 29 2004
* 2005/0124,344 Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system 32 2004
* 2005/0085,265 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system 8 2004
* 7,151,933 Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities 2 2004
8,179,833 Hybrid TDM/OFDM/CDM reverse link transmission 8 2004
* 2005/0111,397 Hybrid TDM/OFDM/CDM reverse link transmission 141 2004
7,881,739 Method and apparatus for adaptive power control in a wireless voice and data communication system 5 2005
* 2005/0197,150 Method and apparatus for adaptive power control in a wireless voice and data communication system 12 2005
7,689,226 Method and system for signaling in broadcast communication system 4 2005
* 2005/0143,080 Method and system for signaling in broadcast communication system 2 2005
* 7,423,994 Methods and apparatus for searching a list of pilot signals 12 2005
* 2005/0232,199 Methods and apparatus for searching a list of pilot signals 6 2005
7,421,281 Methods and apparatus for supporting group communications 2 2005
* 2005/0213,559 Methods and apparatus for supporting group communications 0 2005
9,107,109 Method and apparatus for determining a data rate in a high rate packet data wireless communications system 0 2005
7,398,111 Methods and apparatus for operating mobile nodes in multiple states 8 2005
* 2005/0245,264 Methods and apparatus for operating mobile nodes in multiple states 18 2005
7,369,855 Methods and apparatus for the utilization of core based nodes for state transfer 16 2005
* 2006/0030,326 Methods and apparatus for the utilization of core based nodes for state transfer 1 2005
9,118,358 Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier 0 2005
7,720,479 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system 4 2005
* 2006/0052,108 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system 5 2005
7,376,425 Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system 20 2005
* 2006/0073,836 Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system 25 2005
7,499,701 Measurement reporting in a telecommunication system 15 2005
* 2006/0084,390 Measurement reporting in a telecommunication system 17 2005
7,260,411 Aiding beam identification in a satellite system 2 2005
9,078,084 Method and apparatus for end node assisted neighbor discovery 0 2005
8,983,468 Communications methods and apparatus using physical attachment point identifiers 0 2005
8,023,410 Messages and control methods for controlling resource allocation and flow admission control in a mobile communications system 19 2005
7,509,123 Controlling hand-off in a mobile node with two mobile IP clients 2 2005
* 2006/0111,102 Controlling hand-off in a mobile node with two mobile IP clients 3 2005
* 7,664,209 Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system 1 2006
* 2006/0120,490 Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system 2 2006
* 7,519,027 Method and apparatus for performing idle handoff in a multiple access communication system 5 2006
8,593,932 Efficient signal transmission methods and apparatus using a shared transmission resource 3 2006
* 7,505,436 Communication system employing multiple handoff criteria 1 2006
* 2006/0159,051 Communication system employing multiple handoff criteria 12 2006
7,751,370 Method and apparatus for forward link rate scheduling 6 2006
7,773,547 Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network 0 2006
9,426,821 Method and apparatus for high rate packet data and low delay data transmissions 0 2006
* 2006/0187,877 Method and apparatus for high rate packet data and low delay data transmissions 50 2006
7,593,408 Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames 0 2006
* 2006/0256,794 Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames 9 2006
9,055,552 Quick paging channel with reduced probability of missed page 0 2006
8,750,908 Quick paging channel with reduced probability of missed page 0 2006
9,066,344 State synchronization of access routers 0 2006
8,982,778 Packet routing in a wireless communications environment 0 2006
8,982,835 Provision of a move indication to a resource requester 0 2006
8,509,799 Provision of QoS treatment based upon multiple requests 4 2006
7,764,594 Multiple-access hybrid OFDM-CDMA system 7 2006
* 2006/0274,638 Multiple-access hybrid OFDM-CDMA system 9 2006
8,311,027 Method and apparatus for high rate packet data transmission 5 2006
8,194,598 Method and system for a data transmission in a communication system 7 2006
* 2006/0291,389 Method and system for a data transmission in a communication system 13 2006
8,526,394 Method and system for hard handoff in a broadcast communication system 0 2006
8,351,372 Method and apparatus for high rate packet data transmission 6 2006
8,089,924 Method and apparatus for high rate packet data transmission 8 2006
8,077,655 Method and apparatus for high rate packet data transmission 9 2006
8,009,625 Method and apparatus for high rate packet data transmission 9 2006
7,995,531 Method and apparatus for high rate packet data transmission 8 2006
7,848,282 Method and apparatus for high rate packet data transmission 14 2006
7,848,283 Method and apparatus for high rate packet data transmission 8 2006
7,848,284 Method and apparatus for high rate packet data transmission 8 2006
8,005,042 Method and apparatus for high rate packet data transmission 8 2006
7,848,285 Method and apparatus for high rate packet data transmission 9 2006
7,499,427 Method and apparatus for high rate packet data transmission 13 2006
8,971,222 Method and apparatus for decrementing assignments in wireless communication systems 0 2006
8,923,211 Method and apparatus of processing an access grant block in wireless communication systems 0 2006
8,744,444 Method and apparatus for transmitting a pilot report (PilotReport) message in wireless communication systems 0 2006
8,675,549 Method of serving sector maintenance in a wireless communication systems 0 2006
8,520,628 Method and apparatus for monitoring other channel interference in wireless communication system 5 2006
8,477,808 Method and apparatus of assigning in wireless communication systems 9 2006
8,457,042 Method and apparatus for transmitting and receiving a sectorparameters message in an active state in wireless communication system 8 2006
8,331,285 Method and apparatus of establishing access channel in wireless communication systems 11 2006
8,326,330 Method and apparatus for updating configuration attributes using FastRepage attribute in wireless communication systems 9 2006
8,289,897 Method and apparatus for processing open state in wireless communication system 9 2006
8,289,908 Method and apparatus for processing simultaneous assignment in wireless communication systems 11 2006
8,265,066 Method and apparatus for reducing power consumption in wireless communication systems 14 2006
8,248,950 Method of transmitting and receiving a redirect message in a wireless communication system 13 2006
8,238,289 Method and apparatus for requesting selected interlace mode in wireless communication systems 12 2006
8,218,479 Method and apparatus for processing a multi-code word assignment in wireless communication systems 12 2006
8,199,661 Method and apparatus for processing supplemental and non supplemental assignments 10 2006
8,199,716 Method and system for performing handoff in wireless communication systems 1 2006
7,373,149 Method of handoff within a telecommunications system containing digital base stations with different spectral capabilities 2 2006
8,538,024 Method and apparatus for initializing a new stream cipher during handoff 0 2006
* 2008/0013,730 METHOD AND APPARATUS FOR RE-SYNCHRONIZATION OF A STREAM CIPHER DURING HANDOFF 0 2006
* 8,588,777 Method and apparatus for robust handoff in wireless communication systems 2 2007
7,580,709 Method and apparatus for performing handoff in communications systems 1 2007
* 2007/0123,261 METHOD AND APPARATUS FOR PERFORMING HANDOFF IN COMMUNICATIONS SYSTEMS 1 2007
8,363,616 Method and apparatus for channel optimization during point-to-point protocol (PPP) session requests 1 2007
* 2007/0217,365 METHOD AND APPARATUS FOR CHANNEL OPTIMIZATION DURING POINT-TO-POINT PROTOCOL (PPP) SESSION REQUESTS 5 2007
* 7,653,157 Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system 2 2007
* 2007/0173,256 METHODS AND APPARATUS FOR PERFORMING HANDOFFS IN A MULTI-CARRIER WIRELESS COMMUNICATIONS SYSTEM 31 2007
* 2007/0153,941 METHOD AND APPARATUS FOR COORDINATING TRANSMISSION OF SHORT MESSAGES WITH HARD HANDOFF SEARCHES IN A WIRELESS COMMUNICATIONS SYSTEM 1 2007
8,094,623 Method and apparatus for choosing a sector based on a scaled forward link metric 6 2007
7,937,086 Method and system for a handoff in a broadcast communication system 8 2007
* 2007/0243,871 METHOD AND SYSTEM FOR A HANDOFF IN A BROADCAST COMMUNICATION SYSTEM 5 2007
7,869,803 Profile modification for roaming in a communications environment 10 2007
7,603,123 Method and system for performing a handoff in a wireless communication system, such as a hard handoff 5 2007
* 2007/0213,063 METHOD AND SYSTEM FOR PERFORMING A HANDOFF IN A WIRELESS COMMUNICATION SYSTEM, SUCH AS A HARD HANDOFF 3 2007
7,680,052 Closed loop resource allocation 1 2007
* 2007/0286,081 Closed Loop Resource Allocation 3 2007
9,118,387 Pilot reference transmission for a wireless communication system 0 2007
8,184,611 Mobile station assisted timing synchronization in a CDMA communication system 0 2007
* 2008/0285,539 MOBILE STATION ASSISTED TIMING SYNCHRONIZATION IN A CDMA COMMUNICATION SYSTEM 13 2007
8,711,805 Communications in an asynchronous cellular wireless network 0 2007
* 2010/0265,920 COMMUNICATIONS IN AN ASYNCHRONOUS CELLULAR WIRELESS NETWORK 12 2007
8,755,313 Using DTX and DRX in a wireless communication system 6 2008
8,014,363 Mitigation of link imbalance in a wireless communication system 0 2008
8,102,792 Enabling foreign network multicasting for a roaming mobile node, in a foreign network, using a persistent address 1 2008
8,059,595 Handoff of data attachment point 0 2008
* 2008/0247,360 Handoff of Data Attachment Point 4 2008
9,155,008 Apparatus and method of performing a handoff in a communication network 0 2008
8,374,613 Method of creating and utilizing diversity in a multiple carrier communication system 5 2008
8,559,411 Support of disparate addressing plans and dynamic HA address allocation in mobile IP 1 2008
7,962,142 Methods and apparatus for the utilization of core based nodes for state transfer 26 2008
8,554,226 Base station base methods and apparatus for supporting break before making handoffs in a multi-carrier system 11 2008
* 2008/0287,130 Base Station Base Methods and Apparatus For Supporting Break Before Making Handoffs In A Multi-Carrier System 41 2008
8,830,818 Forward handover under radio link failure 6 2008
9,094,173 Recovery from handoff error due to false detection of handoff completion signal at access terminal 0 2008
8,553,595 Controlled superposition coding in multi-user communication systems 3 2008
* 2009/0097,452 FEMTO CELL SYNCHRONIZATION AND PILOT SEARCH METHODOLOGY 38 2008
8,411,639 Methods and apparatus for quickly exploiting a new link during hand-off in a wireless network 0 2008
* 2009/0040,967 METHODS AND APPARATUS FOR QUICKLY EXPLOITING A NEW LINK DURING HAND-OFF IN A WIRELESS NETWORK 3 2008
* 2009/0247,164 HANDOFF ALGORITHM AND ARCHITECTURE FOR MOBILE SYSTEM 6 2009
8,095,130 Controlling hand-off in a mobile node with two mobile IP clients 1 2009
* 2009/0247,155 CONTROLLING HAND-OFF IN A MOBILE NODE WITH TWO MOBILE IP CLIENTS 2 2009
8,179,840 Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity 7 2009
* 2009/0225,688 METHOD FOR EXTENDING MOBILE IP AND AAA TO ENABLE INTEGRATED SUPPORT FOR LOCAL ACCESS AND ROAMING ACCESS CONNECTIVITY 3 2009
8,514,832 Methods and apparatus enabling increased throughput on the reverse link 0 2009
* 2010/0014,487 METHOD AND SYSTEM FOR A DATA TRANSMISSION IN A COMMUNICATION SYSTEM 40 2009
8,010,113 Method and apparatus for performing handoff in communication systems 0 2009
8,189,540 Method and apparatus for high rate packet data transmission 5 2009
8,170,558 Method and system for performing a handoff in a wireless communication system, such as a hard handoff 1 2009
8,964,692 Spectrum sensing of bluetooth using a sequence of energy detection measurements 0 2009
* 2010/0118,695 SPECTRUM SENSING OF BLUETOOTH USING A SEQUENCE OF ENERGY DETECTION MEASUREMENTS 3 2009
8,761,080 Multiple other sector information combining for power control in a wireless communication system 1 2009
* 8,755,807 Semi-static resource allocation to support coordinated multipoint (CoMP) transmission in a wireless communication network 2 2010
* 2010/0177,746 SEMI-STATIC RESOURCE ALLOCATION TO SUPPORT COORDINATED MULTIPOINT (COMP) TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK 32 2010
8,428,594 Methods and apparatus of improving inter-sector and/or inter cell handoffs in a multi-carrier wireless communications system 0 2010
8,886,180 Enhanced techniques for using core based nodes for state transfer 1 2010
8,620,332 Wireless timing and power control 3 2010
8,953,520 Method and apparatus for inter-sector MIMO 0 2010
8,213,485 High rate CDMA wireless communication system using variable sized channel codes 2 2010
8,077,695 Methods and apparatus for separating home agent functionality 5 2010
8,457,092 Quick paging channel with reduced probability of missed page 8 2010
8,396,033 Method and apparatus for forward link rate scheduling 0 2010
8,472,306 Multi-access hybrid OFDM-CDMA system 0 2010
9,124,344 Pilot reference transmission for a wireless communication system 0 2010
8,811,200 Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems 1 2010
8,477,728 Handoff between base stations of different protocol revisions in a CDMA system 0 2010
* 2011/0013,594 Handoff Between Base Stations of Different Protocol Revisions in a CDMA System 2 2010
8,615,241 Methods and apparatus for facilitating robust forward handover in long term evolution (LTE) communication systems 4 2011
8,315,662 User specific downlink power control channel Q-bit 5 2011
8,644,862 Method and system for signaling in broadcast communication system 0 2011
* 2011/0170,470 METHOD AND SYSTEM FOR SIGNALING IN BROADCAST COMMUNICATION SYSTEM 6 2011
8,599,712 Method and apparatus for setting reverse link CQI reporting modes in wireless communication system 4 2011
8,885,602 Handoff between base stations of different protocol revisions in a CDMA system 0 2011
* 2011/0235,616 HANDOFF BETWEEN BASE STATIONS OF DIFFERENT PROTOCOL REVISIONS IN A CDMA SYSTEM 0 2011
8,948,705 Multiple-access hybrid OFDM-CDMA system 0 2011
8,457,099 Methods and apparatus for separating home agent functionality 0 2011
9,083,355 Method and apparatus for end node assisted neighbor discovery 0 2011
8,588,277 High data rate CDMA wireless communication system using variable sized channel codes 0 2012
9,131,410 Methods and apparatus for facilitating robust forward handover in long term evolution (LTE) communication systems 0 2012
9,001,735 Method and apparatus for high rate packet data transmission 1 2012
9,277,470 Method of creating and utilizing diversity in a multiple carrier communication system 0 2013
9,313,784 State synchronization of access routers 0 2013
9,220,044 Methods and apparatus for quickly exploiting a new link during hand-off in a wireless network 0 2013
9,432,942 Using DTX and DRX in a wireless communication system 0 2013
9,125,078 Method and apparatus for setting reverse link CQI reporting modes in wireless communication system 0 2013
9,131,367 Support of disparate addressing plans and dynamic HA address allocation in mobile IP 0 2013
 
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VRINGO INFRASTRUCTURE INC. (1)
* 5,722,074 Soft handoff in a cellular telecommunications system 69 1996
 
KYOCERA CORPORATION (5)
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SANYO ELECTRIC CO., LTD. (1)
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MCMASTER UNIVERSITY (4)
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8,249,602 Reducing handoff latency in a wireless local area network through an activation alert that affects a power state of a receiving mesh access point 1 2011
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* Cited By Examiner