System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7746830
APP PUB NO 20050249168A1
SERIAL NO

11183520

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A subscriber access unit includes a transceiver for providing wireless communication of digital signals. The digital signals are communicated to a base station using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals defined by orthogonal codes. Orthogonal subchannels are made available by the base station within each CDMA RF channel. A bandwidth manager is connected to the transceiver, and when the transceiver is actively sending data, at least one orthogonal subchannel is allocated by the base station on an as-needed basis. The number of orthogonal subchannels being allocated changes during a given session. The transceiver, when powered on but not actively sending data, provides an idling mode connection on a reverse link. The idling mode connection is based on an orthogonal subchannel shared with at least one other subscriber access unit, but utilizes different time slots of the shared orthogonal subchannel.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTEL CORPORATIONSANTA CLARA, CA29065
InterDigital Technology CorporationWILMINGTON, DE1289

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Proctor,, Jr James A Indialantic, US 173 2002

Cited Art Landscape

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5581575 Method and apparatus for transmission of variable rate digital data 93 1995
5930230 High data rate CDMA wireless communication system 139 1996
5859840 Spread spectrum communication system which defines channel groups comprising selected channels that are additional to a primary channel and transmits group messages during call set up 122 1996
5881368 Method and apparatus of power control in a CDMA dispatch system 128 1996
5884196 Method and apparatus of preserving power of a remote unit in a dispatch system 157 1996
5926500 Reduced peak-to-average transmit power high data rate CDMA wireless communication system 91 1996
5781543 Power-efficient acquisition of a CDMA pilot signal 105 1996
5893035 Centralized forward link power control 113 1996
5960361 Method and apparatus for performing a fast downward move in a cellular telephone forward link power control system 109 1996
6075974 Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed 133 1996
5892774 Phase shift encoded subchannel 53 1996
5933781 Pilot based, reversed channel power control 85 1997
5991284 Subchannel control loop 83 1997
5867527 Method of searching for a bursty signal 75 1997
5914950 Method and apparatus for reverse link rate scheduling 282 1997
6069880 Method and apparatus for scanning other frequency pilot signals in a code division multiple access communication system 69 1997
5982760 Method and apparatus for power adaptation control in closed-loop communications 203 1997
* 6426960 Increased capacity data transmission in a CDMA wireless communication system 67 1997
6396804 High data rate CDMA wireless communication system 127 1997
6188678 Method and apparatus for adaptive closed loop power control using open loop measurements 95 1997
5923650 Method and apparatus for reverse link rate scheduling 299 1997
6097972 Method and apparatus for processing power control signals in CDMA mobile telephone system 91 1997
6377809 Channel structure for communication systems 197 1997
6389000 Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers 108 1997
6101179 Accurate open loop power control in a code division multiple access communication system 145 1997
6005855 Method and apparatus for providing variable rate data in a communications system using statistical multiplexing 126 1997
6574211 Method and apparatus for high rate packet data transmission 525 1997
6064678 Method for assigning optimal packet lengths in a variable rate communication system 107 1997
6307840 Mobile station assisted timing synchronization in CDMA communication system 114 1998
6275478 Methods and apparatuses for fast power control of signals transmitted on a multiple access channel 64 1998
6058338 Method and apparatus for efficient GPS assistance in a communication system 198 1999
6690938 System and method for reducing dropped calls in a wireless communications network 43 1999
6587446 Handoff in a wireless communication system 40 1999
6782277 Wireless communication system with base station beam sweeping 40 1999
6353412 Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations 127 1999
6532226 Method and arrangement for optimal scheduling of slotted-mode related measurements in a cellular radio system 37 1999
6246673 Method and system for handoff between an asynchronous CDMA base station and a synchronous CDMA base station 131 2000
6501787 High-data-rate supplemental channel for CDMA telecommunications system 26 2000
6963540 Apparatus and method for assigning a common packet channel in a CDMA communication system 98 2000
2003/0123,401 Reverse link power controlled repeater 86 2002
2005/0208,961 Method and apparatus for controlling transmit power of multiple channels in a CDMA communication system 111 2005
 
VERIZON PATENT AND LICENSING INC. (1)
5463629 Dynamic channel allocation method and system for integrated services digital network 127 1992
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
5634199 Method of subspace beamforming using adaptive transmitting antennas with feedback 165 1995
 
ERICSSON GE MOBILE COMMUNICATIONS INC. (1)
5353332 Method and apparatus for communication control in a radiotelephone system 217 1992
 
ERICSSON INC. (4)
5790549 Subtractive multicarrier CDMA access methods and systems 68 1996
5844894 Time-reuse partitioning system and methods for cellular radio telephone systems 118 1996
5894473 Multiple access communications system and method using code and time division 210 1996
6768727 Fast forward link power control for CDMA system 88 2000
 
RESOUND CORPORATION (1)
5905473 Adjustable array antenna 96 1997
 
Ortho Pharmaceutical Corporation (1)
6001800 Spray dried erythropoietin 55 1998
 
ALCATEL N.V. (2)
5373502 Process, transmitter and receiver for data transmission with variable traffic volume and a control station for coordinating several such transmitters and receivers 220 1993
5606580 Method of adjusting the length of a data block in a time-division multiple access communication system 62 1994
 
RPX CORPORATION (1)
6269075 Finger assignment in a CDMA rake receiver 120 1998
 
FRANCE TELECOM (1)
6724743 Method of conjoint detection of a set of CDMA codes 37 2000
 
Tachyon, Inc. (1)
6735188 Channel encoding and decoding method and apparatus 88 1999
 
DSC TELECOM L.P. (1)
6134233 Apparatus and method of frame aligning information in a wireless telecommunications system 61 1997
 
UNISYS CORPORATION (1)
5619492 CDMA communication system in which bit rates are dynamically allocated 99 1995
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
5559789 CDMA/TDD Radio Communication System 103 1995
6337668 Antenna apparatus 142 2000
 
AT&T CORP. (7)
5375124 Method and apparatus for providing ISDN access 126 1992
5442625 Code division multiple access system providing variable data rate access to a user 338 1994
5592470 Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynamic bandwidth/channel allocation 527 1994
5856971 Code division multiple access system providing variable data rate access to a user 106 1995
6195362 Resource pooling system and method in communication systems 60 1996
6262980 Dynamic resource allocation method and apparatus for broadband services in a wireless communications system 136 1997
6940845 Asymmetric measurement-based dynamic packet assignment system and method for wireless data services 98 2001
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HYPRES, INC. (1)
9312895 Two stage radio frequency interference cancellation system and method 22 2015
 
Other [Check patent profile for assignment information] (1)
9838051 Two stage radio frequency interference cancellation system and method 0 2016
 
SONY CORPORATION (1)
* 2009/0156,130 BEAM STEERING ALGORITHM FOR NLOS WIRELESS SYSTEMS WITH PREDEFINED PARAMETERS 4 2008
* Cited By Examiner

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