Random access for wireless multiple-access communication systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8711763
APP PUB NO 20120140664A1
SERIAL NO

13353924

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Techniques for facilitating random access in wireless multiple-access communication systems are described. A random access channel (RACH) is defined to comprise a “fast” RACH (F-RACH) and a “slow” RACH (S-RACH). The F-RACH and S-RACH can efficiently support user terminals in different operating states and employ different designs. The F-RACH can be used to quickly access the system, and the S-RACH is more robust and can support user terminals in various operating states and conditions. The F-RACH may be used by user terminals that have registered with the system and can compensate for their round trip delays (RTDs) by properly advancing their transmit timing. The S-RACH may be used by user terminals that may or may not have registered with the system, and may or may not be able to compensate for their RTDs. Other aspects, embodiments, and features are also claimed and described.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
QUALCOMM INCORPORATEDSAN DIEGO, CA20690

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Howard, Steven J Ashland, US 122 8026
Ketchum, John W Harvard, US 142 9919
Wallace, Mark S Bedford, US 124 5991
Walton, Jay Rodney Carlisle, US 102 4093

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (5)
7072410 Multiple access system and method for multibeam digital radio systems 41 2000
7088671 Multiple access technique for downlink multibeam digital radio systems 52 2000
2001/0046,205 Multipath search processor for a spread spectrum multiple access communication system 60 2001
2005/0128,953 Channel calibration for a time division duplexed communication system 49 2005
2010/0142,636 WIRELESS COMMUNICATIONS SYSTEM THAT SUPPORTS MULTIPLE MODES OF OPERATION 32 2009
 
GOLDEN BRIDGE TECHNOLOGY, INC. (1)
6574267 Rach ramp-up acknowledgement 77 1999
 
SARABAND WIRELESS (2)
7155171 Vector network analyzer applique for adaptive communications in wireless networks 44 2002
2003/0153,273 Vector network analyzer applique for adaptive communications in wireless networks 21 2002
 
BENQ CORPORATION (1)
2002/0018,310 Optical path folding apparatus 20 2001
 
SONY CORPORATION (3)
2002/0041,632 Picture decoding method and apparatus 29 2000
* 6956813 Radio communication system, radio base-station apparatus, mobile radio-station apparatus, radio zone assignment method, and radio communication method 39 2001
7058367 Rate-adaptive methods for communicating over multiple input/multiple output wireless systems 87 2003
 
NOKIA SOLUTIONS AND NETWORKS GMBH & CO. KG (2)
6317612 Method for estimating spatial parameters of transmission channels by estimating a spatial covariance matrix 54 1998
6985534 Channel allocation method and device for coded and combined information sets 36 1999
 
YARNTON TECHNOLOGIES LLC (1)
2002/0018,453 Method for controlling outer loop power 25 2001
 
SAMSUNG ELECTRONICS CO., LTD. (16)
5832387 Adaptive power allocating method and apparatus for multicarrier transmission system 111 1995
6728233 Processing packet data in mobile communication system 120 1999
6636496 Packet data communication device and method in mobile communication system 70 1999
6654613 Device and method of continuous outer-loop power control in DTX mode for CDMA mobile communication system 75 2000
6950632 Transmitting and receiving device and method for continuous outer-loop power control while in DTX mode in a CDMA mobile communication system 46 2000
6792041 Data rate detection device and method for a mobile communication system 34 2000
6798738 FFT window position recovery apparatus and method for OFDM system receiver 32 2000
2007/0274,278 Method of assigning an uplink random access channel in a CDMA mobile communication system 90 2001
2002/0044,591 Transmit diversity apparatus and method using two or more antennas 27 2001
2002/0115,473 Transmit antenna diversity apparatus and method for a base station in a CDMA mobile communication system 31 2001
7260366 Apparatus and method for transmitting and receiving data using an antenna array in a mobile communication system 113 2002
2003/0060,173 Apparatus and method for transmitting and receiving data using an antenna array in a mobile communication system 31 2002
2003/0119,452 Apparatus and method for controlling transmission power of downlink data channel in a mobile communication system supporting MBMS 140 2002
7283508 Apparatus and method for transmitting/receiving serving HS-SCCH set information in an HSDPA communication system 90 2003
2003/0147,371 Apparatus and method for transmitting/receiving serving HS-SCCH set information in an HSDPA communication system 154 2003
2003/0185,311 Methods for minimizing setup time by optimizing bit allocation in multi-channel communication system 24 2003
 
INNSMOUTH LLC (1)
5677909 Apparatus for exchanging data between a central station and a plurality of wireless remote stations on a time divided commnication channel 280 1994
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
7110378 Channel aware optimal space-time signaling for wireless communication over wideband multipath channels 81 2001
 
IKANOS COMMUNICATIONS, INC. (1)
2003/0202,612 Method and system for rate enhanced SHDSL 34 2002
 
SONY DEUTSCHLAND GMBH (1)
2002/0003,774 Pilot pattern design for a STTD scheme in an OFDM system 62 2001
 
SHERWOOD PARTNERS, INC. (1)
6512737 Stacked carrier discrete multiple tone communication system 149 2000
 
DISENO DE SISTEMAS EN SILICIO, S. A. (1)
2004/0151,108 Process to optimise communication for a multi-user OFDM digital transmission system over the electricity network 75 2003
 
SONY INTERNATIONAL (EUROPE) GMBH (1)
6545997 Transmission method and transmission apparatus for transmitting signals on the basis of a OFDM/TDMA-system with pilot symbols 187 1999
 
HUGHES ELECTRONICS CORPORATION (1)
6515617 Method and system for position determination using geostationary earth orbit satellite 39 1998
 
WAVION LTD. (1)
2005/0047,384 WLAN capacity enhancement using SDM 129 2004
 
CALLAHAN CELLULAR L.L.C. (2)
7310304 Estimating channel parameters in multi-input, multi-output (MIMO) systems 44 2002
2002/0181,390 Estimating channel parameters in multi-input, multi-output (MIMO) systems 68 2002
 
S. AQUA SEMICONDUCTOR, LLC (2)
6882868 Cancellation system for frequency reuse in microwave communications 24 1999
7317750 Orthogonal superposition coding for direct-sequence communications 116 2003
 
MARVELL INTERNATIONAL LTD. (2)
7263119 Decoding method and apparatus 62 2002
7606296 Decoding method and apparatus 31 2007
 
IPR LICENSING, INC. (5)
7006483 Qualifying available reverse link coding rates from access channel power setting 36 2001
6873651 System and method for joint maximal ratio combining using time-domain signal processing 73 2002
2003/0165,187 System and Method for Joint Maximal Ratio Combining Using Time-Domain Based Signal Processing 15 2002
7194237 System and method for multiple-input multiple-output (MIMO) radio communication 96 2003
6965762 System and method for antenna diversity using joint maximal ratio combining 72 2003
 
SKYHOOK HOLDING, INC. (1)
6463290 Mobile-assisted network based techniques for improving accuracy of wireless location system 177 2000
 
HANSEN, RICHARD A. (1)
6478422 Single bifocal custom shooters glasses 89 2001
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (5)
7020490 Radio communication system 68 2002
2002/0127,978 Radio communication system 27 2002
2002/0122,393 Antenna diversity in a wireless local area network 43 2002
2004/0037,257 Method and apparatus for assuring quality of service in wireless local area networks 32 2002
7392014 Measurement of channel characteristics in a communication system 93 2003
 
NIPPON SOKEN, INC. (1)
2002/0064,214 Combination power/inphase correlator for spread spectrum receiver 20 2001
 
LOCKHEED MARTIN CORPORATION (1)
6163296 Calibration and integrated beam control/conditioning system for phased-array antennas 93 1999
 
INTEL DEUTSCHLAND GMBH (1)
6532255 Method and arrangement for minimizing the autocorrelation error in the demodulation of a spread-spectrum signal subject to multipath propagation 26 1999
 
MARVELL WORLD TRADE LTD. (1)
2003/0142,732 Novel receiver architecture for CDMA receiver downlink 22 2002
 
NOKIA TELECOMMUNICATIONS OY (1)
6597682 Channel allocation method for a packet network 96 1999
 
PENDRAGON WIRELESS LLC (1)
6868079 Radio communication system with request re-transmission until acknowledged 41 1999
 
U.S. PHILIPS CORPORATION (3)
5509003 TDM data communications network wherein each data frame is divided into respective lower rate sub-frames for respective sets of substations, and main station and substation for use therein 71 1994
6314113 Method of determining a symbol transmission format in a transmission system and system 32 1998
* 7095722 Method for the operation of wireless base stations for packet transfer radio systems having a guaranteed service quality 43 2000
 
SAMSUNG THOMSON-CSF CO., LTD. (1)
2002/0004,920 Apparatus and method for measuring bit error rate in an OFDM communication system 17 2001
 
BLACKBERRY LIMITED (6)
7149239 Communication system and methods of estimating channel impulse responses therein 85 2002
2003/0043,887 Communication system and methods of estimating channel impulse responses therein 29 2002
8254246 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems 25 2009
2010/0271,930 SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS 21 2010
2011/0216,808 SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS 16 2011
8406118 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems 19 2012
 
ISOSPAN WIRELESS, INC. (1)
6937592 Wireless communications system that supports multiple modes of operation 72 2000
 
MONUMENT PEAK VENTURES, LLC (1)
2003/0095,197 System and method for deciding when to correct image-specific defects based on camera, scene, display and demographic data 63 2001
 
MICRONECTICS WIRELESS, INC. (1)
5973638 Smart antenna channel simulator and test system 80 1998
 
PROVENANCE ASSET GROUP LLC (4)
7421039 Method and system employing antenna arrays 34 2002
2003/0223,391 Method and system employing antenna arrays 15 2002
2003/0123,389 Apparatus and method for controlling data transmission 149 2002
2004/0151,122 Methods of controlling data rate in wireless communications systems 50 2003
 
VIXS, Inc. (1)
7130362 Method and apparatus for establishing non-standard data rates in a wireless communication system 27 2005
 
TEXAS INSTRUMENTS INCORPORATED (17)
6308080 Power control in point-to-multipoint systems 122 1998
6594473 Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities 141 2000
7113499 Wireless communication 31 2001
2001/0048,675 Wireless communication 4 2001
7289570 Wireless communications 83 2001
2002/0034,263 Wireless communications 11 2001
2003/0078,024 Simplified noise estimation and/or beamforming for wireless communications 18 2001
2002/0196,842 Closed loop multiple transmit, multiple receive antenna wireless communication system 151 2001
7386076 Space time encoded wireless communication system with multipath resolution receivers 83 2002
2003/0016,640 Space time encoded wireless communication system with multipath resolution receivers 7 2002
7133459 Space-time transmit diversity 62 2002
7224704 Wireless network scheduling data frames including physical layer configuration 57 2002
2003/0202,492 Adaptive allocation of communications link channels to I- or Q-subchannel 35 2003
7200404 Information storage to support wireless communication in non-exclusive spectrum 29 2003
2004/0076,224 Multipath interference-resistant receivers for closed-loop transmit diversity (CLTD) in code-division multiple access (CDMA) systems 82 2003
7231184 Low overhead transmit channel estimation 27 2003
2005/0124,297 Low overhead transmit channel estimation 3 2003
 
CLEARWIRE IP HOLDINGS LLC (1)
2002/0027,951 Real-time system for measuring the ricean K-factor 16 2001
 
GIGABIT WIRELESS, INC. (2)
6850498 Method and system for evaluating a wireless link 47 2000
2002/0080,735 Method and system for evaluating a wireless link 14 2000
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
6049548 Multi-access CS-P/CD-E system and protocols on satellite channels applicable to a group of mobile users in close proximity 44 1997
 
NORTEL NETWORKS LIMITED (3)
2003/0162,519 Radio communications device 81 2002
2004/0176,097 Allocation of sub channels of MIMO channels of a wireless network 58 2003
2006/0183,497 Performing power control in a mobile communications system 57 2006
 
NOKIA CORPORATION (1)
7606319 Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels 22 2004
 
MACQUARIE UNIVERSITY (1)
6879579 Medium access control protocol for data communications 62 2000
 
CHEMTRON RESEARCH LLC (2)
6693992 Line probe signal and method of use 43 2001
2002/0126,803 Line probe signal and method of use 12 2001
 
NOKIA TECHNOLOGIES OY (6)
6298035 Estimation of two propagation channels in OFDM 159 1999
7403748 Multi-antenna transmission method and system 129 2000
7480278 Admission control with directional antenna 34 2001
* 6842460 Ad hoc network discovery menu 325 2001
2003/0206,558 Method for scalable encoding of media streams, a scalable encoder and a terminal 43 2001
2006/0077,935 Antenna selection method 40 2002
 
XYROFIN OY (1)
6821535 Process for hard panning of chewable cores and cores produced by the process 83 2001
 
OL SECURITY LIMITED LIABILITY COMPANY (1)
7260153 Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels 97 2003
 
POSITRON ACCESS SOLUTIONS INC. (1)
7274734 Iterative waterfiling with explicit bandwidth constraints 33 2004
 
Konle; Timlar (1)
6115354 Multiple carrier transmission in common-wave networks 91 1996
 
THOMSON LICENSING DTV (1)
6330293 Method for receiving multicarrier digital signals 47 1998
 
XYLON LLC (1)
6266528 Performance monitor for antenna arrays 227 1998
 
INTELLECTUAL VENTURES II LLC (2)
6072779 Adaptive allocation for variable bandwidth multicarrier communication 133 1997
2006/0209,894 Adaptive Allocation For Variable Bandwidth Multicarrier Communication 30 2006
 
Uniden Corporation (1)
5859875 Transmitter, receiver, communication system, and communication method employing spread spectrum communication technique 66 1997
 
GOOGLE TECHNOLOGY HOLDINGS LLC (15)
5422733 Method and apparatus for facsimile communication of first and second type information with selective call communication systems 33 1994
5638369 Method and apparatus for inbound channel selection in a communication system 80 1995
5729542 Method and apparatus for communication system access 234 1995
5867478 Synchronous coherent orthogonal frequency division multiplexing system, method, software and device 546 1997
6141542 Method and apparatus for controlling transmit diversity in a communication system 78 1997
6175588 Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system 165 1997
5982327 Adaptive array method, device, base station and subscriber unit 224 1998
6987819 Method and device for multiple input/multiple output transmit and receive weights for equal-rate data streams 76 2001
6859503 Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel 137 2002
2003/0185,309 Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel 61 2002
6683916 Adaptive modulation/coding and power allocation system 48 2002
6885708 Training prefix modulation method and receiver 33 2002
2004/0013,084 Training prefix modulation method and receiver 12 2002
7308035 Transit diversity wireless communication 39 2002
6927728 Method and apparatus for multi-antenna transmission 158 2003
 
LG ELECTRONICS INC. (4)
7379492 Adaptive modulation coding system and method in a mobile communication network 34 2003
2003/0231,706 Adaptive modulation coding system and method in a mobile communication network 14 2003
2005/0220,211 Signal processing apparatus and method in multi-input/multi-output communications systems 43 2005
2006/0153,237 Communication system with improved medium access control sub-layer 38 2006
 
MN1 - MABUHAY NETWORKS (1)
6611231 Wireless packet switched communication systems and networks using adaptively steered antenna arrays 138 2001
 
TTI INVENTIONS A LLC (1)
5295159 Coordinated coding for digital transmission 101 1992
 
NYTELL SOFTWARE LLC (2)
7003044 Method for allocating bits and power in multi-carrier communication system 33 2001
2001/0031,014 Method for allocating bits and power in multi-carrier communication system 12 2001
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (8)
6363267 Mobile terminal decode failure procedure in a wireless local area network 51 1999
6339399 Antenna array calibration 91 2000
7023826 Device for narrow-band communication in a multi-carrier system 32 2001
7187646 Link quality determination of a transmission link in an OFDM transmission system 56 2001
7035359 Methods and apparatus for demodulation of a signal in a signal slot subject to a discontinuous interference signal 29 2001
7120199 Link adaptation for MIMO transmission schemes 82 2002
2003/0003,863 Link adaptation for MIMO transmission schemes 60 2002
2009/0291,642 Systems and Methods for SIR Estimation for Power Control 20 2008
 
COMCAST CABLE COMMUNICATIONS, LLC (2)
7248841 Method and apparatus for optimization of wireless multipoint electromagnetic communication networks 287 2001
2004/0095,907 Method and apparatus for optimization of wireless multipoint electromagnetic communication networks 232 2001
 
TCL COMMUNICATION TECHNOLOGY HOLDINGS LIMITED (1)
* 7453844 Dynamic allocation of channels in a wireless network 91 2002
 
ANALOG DEVICES, INC. (2)
7039125 Equalized SNR power back-off 29 2002
2002/0163,974 Equalized SNR power back-off 5 2002
 
Advanced Digital Television Broadcasting Laboratory (1)
5818813 Orthogonal frequency division multiplexing transmission system and transmitter and receiver adapted to the same 97 1996
 
UNIVERSITY OF MARYLAND, BALTIMORE (1)
6377812 Combined power control and space-time diversity in mobile cellular communications 51 1998
 
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (1)
2003/0190,897 Method for selecting switched orthogonal beams for downlink diversity transmission 100 2002
 
UNIQUE BROADBAND SYSTEMS LTD. (1)
6369758 Adaptive antenna array for mobile communication 121 2000
 
NTT DOCOMO, INC. (1)
7072381 Path search method, channel estimation method and communication device 38 2000
 
ZHIGU HOLDINGS LIMITED (2)
7164669 Multi-carrier communication with time division multiplexing and carrier-selective loading 86 2002
2002/0163,879 Multi-carrier communication with time division multiplexing and carrier-selective loading 53 2002
 
STEVEN M. HOFFBERG 2004-1 GRAT (1)
6850252 Intelligent electronic appliance system and method 1442 2000
 
OPTIS WIRELESS TECHNOLOGY, LLC (1)
2003/0099,306 Method and apparatus for channel estimation using plural channels 21 2001
 
COM DEV International, Inc. (1)
6492942 Content-based adaptive parasitic array antenna system 111 2000
 
Intech 21, Inc. (2)
2004/0071,107 Timely organized ad hoc network and protocol for timely organized ad hoc network 20 2002
2005/0099,974 Timely organized ad hoc network and protocol for timely organized ad hoc network 22 2004
 
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. (1)
6314289 Apparatus and method for transmitting information and apparatus and method for receiving information 100 1999
 
HITACHI, LTD. (1)
2003/0128,656 Channel estimation and compensation techniques for use in frequency division multiplexed systems 30 2002
 
RATEZE REMOTE MGMT. L.L.C. (1)
2001/0031,621 Automatic configuration of backhaul and groundlink frequencies in a wireless repeater 27 2000
 
InterDigital Technology Corporation (8)
6278726 Interference cancellation in a spread spectrum communication system 88 2000
2002/0057,659 Apparatus for adaptive forward power control for spread-spectrum communications 51 2001
6574271 Spread spectrum receiver for receiving a data signal using an adaptive algorithm 33 2001
2001/0038,666 Interference cancellation in a spread spectrum communication system 5 2001
2002/0085,620 CDMA communication system using an antenna array 21 2002
6879578 Single user detection user equipment 32 2002
6690660 Adaptive algorithm for a Cholesky approximation 33 2002
7218684 Method and system for code reuse and capacity enhancement using null steering 35 2002
 
APPLE INC. (14)
5822374 Method for fine gains adjustment in an ADSL communications system 134 1996
6122247 Method for reallocating data in a discrete multi-tone communication system 56 1997
6985434 Adaptive time diversity and spatial diversity for OFDM 196 2000
7009931 Synchronization in a multiple-input/multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system for wireless applications 69 2000
2002/0122,381 Channels estimation for multiple input - multiple output, orthogonal frequency division multiplexing (OFDM) system 94 2000
7233625 Preamble design for multiple input--multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system 111 2001
2002/0041,635 Preamble design for multiple input - multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system 68 2001
7254171 Equaliser for digital communications systems and method of equalisation 51 2001
7548506 System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design 116 2002
7103325 Adaptive modulation and coding 71 2002
7492737 Service-driven air interface protocol architecture for wireless systems 40 2002
7551546 Dual-mode shared OFDM methods/transmitters, receivers and systems 142 2003
7356089 Phase offset spatial multiplexing 32 2003
2006/0104,196 Adaptive time diversity and spatial diversity for OFDM 17 2005
 
REALTEK SEMICONDUCTOR CORP. (1)
6222888 Method and circuit for controlling setup of multichannel system 57 2000
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
4797879 Packet switched interconnection protocols for a star configured optical lan 140 1987
 
LENOVO INNOVATIONS LIMITED (HONG KONG) (1)
6011963 Received signal strength detecting circuit 22 1997
 
TELLABS OPERATIONS, INC. (2)
6795424 Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems 159 1998
2002/0105,928 Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems 85 2001
 
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (1)
2006/0067,417 Transmission method for OFDM-MIMO communication system 47 2005
 
AMOSMET INVESTMENTS LLC (1)
7599443 Method and apparatus to balance maximum information rate with quality of service in a MIMO system 35 2004
 
COMMASIC, INC. (1)
2004/0071,104 Multi-mode method and apparatus for performing digital modulation and demodulation 22 2003
 
AT&T IPM CORP. (1)
5493712 Fast AGC for TDMA radio systems 44 1994
 
LUCENT TECHNOLOGIES INC. (10)
6097771 Wireless communications system having a layered space-time architecture employing multi-element antennas 182 1996
6920192 Adaptive antenna array methods and apparatus for use in a multi-access wireless communication system 65 2000
7006464 Downlink and uplink channel structures for downlink shared channel system 90 2000
6751480 Method for simultaneously conveying information to multiple mobiles with multiple antennas 61 2000
2001/0017,881 Preamble detector for a CDMA receiver 30 2000
7292854 Express signaling in a wireless communication system 41 2002
2003/0157,953 Express signaling in a wireless communication system 32 2002
2003/0186,650 Closed loop multiple antenna system 21 2002
2003/0045,288 Method of sending control information in a wireless telecommunications network, and corresponding apparatus 59 2002
2004/0062,192 Method of power allocation and rate control in OFDMA systems 32 2002
 
LSI Logic (1)
7248638 Transmit antenna multi-mode tracking 57 2002
 
CISCO TECHNOLOGY, INC. (5)
6144711 Spatio-temporal processing for communication 476 1997
6452981 Spatio-temporal processing for interference handling 242 1999
6891858 Dynamic modulation of modulation profiles for communication channels in an access network 56 2000
6990059 Interference mitigation in a wireless communication system 49 2001
6888899 Spatio-temporal processing for communication 116 2002
 
FUJITSU LIMITED (1)
2006/0209,937 Adaptive modulation transmission system, transmission device, reception device, and method thereof 38 2004
 
AGERE SYSTEMS INC. (2)
2004/0017,785 System for transporting multiple radio frequency signals of a multiple input, multiple output wireless communication system to/from a central processing base station 136 2002
2006/0018,247 Method and apparatus for space interleaved communication in a multiple antenna communication system 28 2004
 
GODO KAISHA IP BRIDGE 1 (1)
7356004 Data transmission method for a mobile communication system 29 2003
 
MOTOROLA, INC. (5)
5239677 Method and apparatus for initiating communication on an assigned frequency 60 1991
5606729 Method and apparatus for implementing a received signal quality measurement in a radio communication system 86 1995
6192256 Devices for transmitter path weights and methods therefor 109 1999
2002/0085,641 Method and system for interference averagingin a wireless communication system 160 2001
2003/0112,745 Method and system of operating a coded OFDM communication system 114 2001
 
INVT SPE LLC (1)
6847828 Base station apparatus and radio communication method 46 2002
 
AT&T INTELLECTUAL PROPERTY II, L.P. (1)
7068628 MIMO OFDM system 184 2001
 
PLESSEY U.K. (1)
4750198 Cellular radiotelephone system providing diverse separately-accessible groups of channels 57 1986
 
INTEL CORPORATION (35)
5886988 Channel assignment and call admission control for spatial division multiple access communication systems 249 1996
6154661 Transmitting on the downlink using one or more weight vectors determined to achieve a desired radiation pattern 127 1997
6275543 Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing 90 1998
6615024 Method and apparatus for determining signatures for calibrating a communication station having an antenna array 136 1999
6141567 Apparatus and method for beamforming in a changing-interference environment 163 1999
6067290 Spatial multiplexing in a cellular network 217 1999
6351499 Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter 329 1999
6298092 Methods of controlling communication parameters of wireless systems 206 2000
6760882 Mode selection for data transmission in wireless communication channels based on statistical parameters 184 2000
7062294 Downlink transmission in a wireless data communication system having a base station with a smart antenna system 82 2000
7191381 Mode lookup tables for data transmission in wireless communication channels based on statistical parameters 46 2000
2002/0150,182 Spatial processing and timing estimation using a training sequence in a radio communications system 22 2001
2002/0183,010 Wireless communication systems with adaptive channelization and link adaptation 95 2001
2003/0012,308 Adaptive channel estimation for wireless systems 70 2001
7149254 Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems 62 2001
2003/0043,929 Transmit signal preprocessing based on transmit antennae correlations for muliple antennae systems 29 2001
6788948 Frequency dependent calibration of a wideband radio system using narrowband channels 55 2001
7024163 Method and apparatus for adjusting feedback of a remote unit 47 2001
2003/0064,739 Frequency dependent calibration of a wideband radio system using narrowband channels 4 2001
6959171 Data transmission rate control 34 2002
7012978 Robust multiple chain receiver 52 2002
6802035 System and method of dynamically optimizing a transmission mode of wirelessly transmitted information 159 2002
2002/0147,953 System and method of dynamically optimizing a transmission mode of wirelessly transmitted information 57 2002
6654590 Determining a calibration function using at least one remote terminal 95 2002
6668161 Determining a spatial signature using a robust calibration signal 75 2002
6963742 Periodic calibration on a communications channel 74 2002
2002/0155,818 Determining a spatial signature using a robust calibration signal 30 2002
6738020 Estimation of downlink transmission parameters in a radio communications system with an adaptive antenna array 76 2002
6862440 Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration 76 2002
7342912 Selection of user-specific transmission parameters for optimization of transmit performance in wireless communications using a common pilot channel 53 2002
2004/0052,228 Method and system of frequency and time synchronization of a transceiver to signals received by the transceiver 51 2002
7277679 Method and apparatus to provide multiple-mode spatial processing to a terminal unit 66 2002
2003/0139,194 Closed-loop transmit diversity scheme in frequency selective multipath channels 67 2002
7333556 System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel 88 2004
2005/0152,465 System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel 25 2004
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
2002/0191,535 OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device 80 2002
 
MITSUBISHI DENKI KABUSHIKI KAISHA (4)
* 5883887 Radio data transmission system 59 1996
5959965 Digital broadcasting receiver 57 1997
7031671 Multi-user detection method 32 2001
2002/0072,336 Multi-user detection method 9 2001
 
MIAN YANG HEBEN BIOTIC ENGINEERING CO., LTD. (1)
7238508 EPSP synthase highly tolerant to glyphosate 30 2004
 
SIEMENS INFORMATION AND COMMUNICATION NETWORKS S.P.A. (1)
2003/0076,812 Method for optimizing the random access procedures in the cdma cellular networks 179 2002
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (2)
6084915 Signaling method having mixed-base shell map indices 35 1998
7137047 Method and apparatus for selection of ARQ parameters and estimation of improved communications 31 2004
 
OPTIS CELLULAR TECHNOLOGY, LLC (1)
6167031 Method for selecting a combination of modulation and channel coding schemes in a digital communication system 223 1997
 
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA (1)
6345036 OFDM transmitting/receiving device and method 42 2000
 
MOTOROLA SOLUTIONS, INC. (4)
5241544 Multi-channel TDM communication system slot phase correction 55 1991
6757263 Wireless repeating subscriber units 55 2000
7573805 Data transmission and reception method and apparatus 43 2001
2003/0123,381 Data transmission and reception method and apparatus 63 2001
 
JAEGER REGULATION (1)
6346910 Automatic array calibration scheme for wireless point-to-multipoint communication networks 46 2000
 
NEC CORPORATION (2)
4736371 Satellite communications system with random multiple access and time slot reservation 276 1986
6510184 Multi-carrier transmission system and method thereof 51 1999
 
POLYTRAX INFORMATION TECHNOLOGY AG (1)
6956906 Powerline data communication 29 2001
 
MORPHICS TECHNOLOGY, INC. (1)
2002/0062,472 Dynamically reconfigurable universal transmitter system 44 2001
 
JPMORGAN CHASE BANK, N.A. (3)
6608874 Method and apparatus for quadrature multi-pulse modulation of data for spectrally efficient communication 37 1998
6980800 System and method for providing contention channel organization for broadband satellite access in a communications network 30 2002
2003/0153,320 System and method for providing contention channel organization for broadband satellite access in a communications network 9 2002
 
MICROSOFT TECHNOLOGY LICENSING, LLC (1)
7042858 Soft handoff for OFDM 112 2002
 
INTEK CORPORATION (1)
2004/0198,276 Multiple channel wireless receiver 33 2002
 
DAVID LADD, AS COLLATERAL AGENT (1)
6785513 Method and system for clustered wireless networks 108 2001
 
WIRELESS LOCATION TECHNOLOGIES, INC. (1)
6232918 Antenna array calibration in wireless communication systems 113 1998
 
ACTELIS NETWORKS INC. (1)
6744811 Bandwidth management for DSL modem pool 46 2000
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (2)
2006/0072,649 Frequency hopping ofdma method using symbols of comb pattern 63 2002
2007/0177,681 Mimo-ofdm system using eigenbeamforming method 94 2004
 
HITACHI AMERICA, LTD. (1)
5867539 Methods and apparatus for reducing the effect of impulse noise on receivers 87 1995
 
SIEMENS MOBILE COMMUNICATIONS S.P.A. (1)
2004/0005,887 Collision free access scheduling in cellular TDMA-CDMA networks 43 2003
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (10)
6292917 Unequal error protection for digital broadcasting using channel classification 69 1998
2002/0044,610 DSL rate adaptation 21 2001
2002/0075,830 Adaptive modulation for fixed wireless link in cable transmission system 25 2001
6980601 Rate adaptation and parameter optimization for multi-band single carrier transmission 38 2001
2003/0235,149 Space-time bit-interleaved coded modulation for wideband transmission 56 2002
7822140 Multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining 37 2004
2005/0185,575 Asymmetrical mimo wireless communications 49 2004
2006/0159,120 Method and system for rate selection algorithm to maximize throughput in closed loop multiple input multiple output (MIMO) wireless local area network (WLAN) system 62 2005
2005/0276,343 Rate adaptation and parameter optimization for multi-band single carrier transmission 40 2005
7653415 Method and system for increasing data rate in a mobile terminal using spatial multiplexing for DVB-H communication 52 2005
 
CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC. (1)
6992972 Frequency division multiplexing system with selectable rate 39 2003
 
3COM CORPORATION (1)
2002/0184,453 Data bus system including posted reads and writes 34 2001
 
QUALCOMM INCORPORATED (113)
6574211 Method and apparatus for high rate packet data transmission 517 1997
6631121 Method and apparatus for managing overhead channel in mobile communication system 34 1998
6385264 Method and apparatus for mitigating interference between base stations in a wideband CDMA system 111 1999
6426971 System and method for accurately predicting signal to interference and noise ratio to improve communications system performance 67 1999
6330462 Method and apparatus for pre-transmission power control using lower rate for high rate communication 83 1999
2002/0154,705 High efficiency high performance communications system employing multi-carrier modulation 266 2000
6473467 Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system 616 2000
6760313 Method and apparatus for adaptive rate selection in a communication system 56 2000
6952454 Multiplexing of real time services and non-real time services for OFDM systems 184 2000
6731668 Method and system for increased bandwidth efficiency in multiple input--multiple output channels 56 2001
2002/0098,872 Method and system for forward link beam forming in wireless communications 22 2001
6771706 Method and apparatus for utilizing channel state information in a wireless communication system 214 2001
6785341 Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information 278 2001
2003/0048,856 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion 74 2001
2002/0193,146 Method and apparatus for antenna diversity in a wireless communication system 253 2001
7072413 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion 162 2001
2003/0112,880 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion 52 2001
2003/0002,450 Method and apparatus for transmitting data in a time division duplexed (TDD) communication system 43 2001
6751187 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission 197 2001
2003/0043,732 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission 100 2001
7006848 Method and apparatus for utilizing channel state information in a wireless communication system 134 2001
2003/0003,880 Method and apparatus for utilizing channel state information in a wireless communication system 56 2001
7190749 Method and apparatus for canceling pilot interference in a wireless communication system 44 2001
7164649 Adaptive rate control for OFDM communication system 139 2001
2003/0125,040 Multiple-access multiple-input multiple-output (MIMO) communication system 440 2001
2003/0103,584 Iterative detection and decoding for a MIMO-OFDM system 53 2001
6760388 Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems 158 2001
2003/0108,117 Time-domain transmit and receive processing with channel eigen-mode decompositon for MIMO systems 37 2001
7020110 Resource allocation for MIMO-OFDM communication systems 236 2002
2003/0128,658 Resource allocation for MIMO-OFDM communication systems 129 2002
7020482 Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems 44 2002
2003/0139,196 Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems 28 2002
2003/0153,360 Method and apparatus for transmit pre-correction in wireless communications 54 2002
2003/0157,954 Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems 39 2002
6862271 Multiple-input, multiple-output (MIMO) systems with multiple transmission modes 168 2002
2003/0161,282 Multiple-input, multiple-output (MIMO) systems with multiple transmission modes 63 2002
6636568 Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system 155 2002
2003/0165,189 DATA TRANSMISSION WITH NON-UNIFORM DISTRIBUTION OF DATA RATES FOR A MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SYSTEM 53 2002
7197084 Precoding for a multipath channel in a MIMO system 77 2002
2003/0185,310 Precoding for a multipath channel in a MIMO system 71 2002
7623871 Position determination for a wireless terminal in a hybrid position determination system 64 2002
2004/0203,853 Position determination for a wireless terminal in a hybrid position determination system 68 2002
7184713 Rate control for multi-channel communication systems 99 2002
2003/0236,080 Rate control for multi-channel communication systems 50 2002
7095709 Diversity transmission modes for MIMO OFDM communication systems 137 2002
2003/0235,147 Diversity transmission modes for MIMO OFDM communication systems 87 2002
2003/0235,255 Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems 133 2002
6940917 Beam-steering and beam-forming for wideband MIMO/MISO systems 108 2002
2004/0042,439 Beam-steering and beam-forming for wideband MIMO/MISO systems 30 2002
2004/0042,556 Coded MIMO systems with selective channel inversion applied per eigenmode 71 2002
7280467 Pilot transmission schemes for wireless multi-carrier communication systems 149 2003
2004/0081,131 OFDM communication system with multiple OFDM symbol sizes 169 2003
2004/0184,398 Transmission mode selection for data transmission in a multi-channel communication system 81 2003
6804191 Phase sequences for timing and access signals 49 2003
2004/0120,411 Closed-loop rate control for a multi-channel communication system 204 2003
7986742 Pilots for MIMO communication system 51 2003
2004/0179,627 Pilots for MIMO communication systems 149 2003
2005/0047,515 Frequency-independent spatial processing for wideband MISO and MIMO systems 50 2003
7002900 Transmit diversity processing for a multi-antenna communication system 150 2003
7151809 Channel estimation and spatial processing for TDD MIMO systems 68 2003
7324429 Multi-mode terminal in a wireless MIMO system 71 2003
8170513 Data detection and demodulation for wireless communication systems 18 2003
2004/0082,356 MIMO WLAN system 491 2003
2004/0085,939 Channel calibration for a time division duplexed communication system 70 2003
2004/0087,324 Channel estimation and spatial processing for TDD MIMO systems 21 2003
2004/0136,349 MIMO system with multiple spatial multiplexing modes 181 2003
2004/0156,328 Random access for wireless multiple-access communication systems 110 2003
7298805 Multi-antenna transmission for spatial division multiple access 71 2003
2005/0111,599 Multi-antenna transmission for spatial division multiple access 51 2003
2005/0120,097 Method and apparatus for providing an efficient control channel structure in a wireless communication system 109 2003
7280625 Derivation of eigenvectors for spatial processing in MIMO communication systems 49 2003
2004/0165,684 Derivation of eigenvectors for spatial processing in MIMO communication systems 16 2003
7508748 Rate selection for a multi-carrier MIMO system 85 2004
2005/0088,959 Rate selection for a multi-carrier MIMO system 63 2004
7206354 Calibration of downlink and uplink channel responses in a wireless MIMO communication system 54 2004
7486740 Calibration of transmit and receive chains in a MIMO communication system 31 2004
2005/0227,628 Calibration of transmit and receive chains in a MIMO communication system 37 2004
7110463 Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system 65 2004
2006/0002,496 Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system 4 2004
2005/0208,959 Dynamic shared forward link channel for a wireless communication system 52 2004
7054378 Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information 42 2004
2005/0135,284 High speed media access control 191 2004
2005/0135,295 High speed media access control and direct link protocol 158 2004
2005/0135,318 High speed media access control with legacy system interoperability 241 2004
8570988 Channel calibration for a time division duplexed communication system 21 2005
7221956 Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems 30 2005
7466749 Rate selection with margin sharing 21 2005
7603141 Multi-antenna station with distributed antennas 50 2005
* 2005/0245,264 Methods and apparatus for operating mobile nodes in multiple states 22 2005
2006/0104,340 Open-loop rate control for a TDD communication system 38 2005
8358714 Coding and modulation for multiple data streams in a communication system 14 2005
2006/0039,275 Transmit diversity processing for a multi-antenna communication system 36 2005
2006/0114,858 Closed-loop rate control for a MIMO communication system 104 2005
7636573 Multiple-access multiple-input multiple-output (MIMO) communication system 90 2006
7653142 Channel estimation and spatial processing for TDD MIMO systems 40 2006
2007/0086,536 CHANNEL ESTIMATION AND SPATIAL PROCESSING FOR TDD MIMO SYSTEMS 20 2006
8145179 Data detection and demodulation for wireless communication systems 18 2007
2008/0069,015 MULTI-MODE TERMINAL IN A WIRELESS MIMO SYSTEM 34 2007
2008/0285,488 MIMO WLAN SYSTEM 59 2008
2008/0285,669 MIMO WLAN SYSTEM 53 2008
2008/0267,098 MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES 28 2008
2008/0267,138 MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES 41 2008
2008/0285,670 MIMO WLAN SYSTEM 108 2008
2010/0067,401 METHODS AND SYSTEMS FOR TRANSMISSION MODE SELECTION IN A MULTI CHANNEL COMMUNICATION SYSTEM 48 2008
2009/0129,454 RATE SELECTION WITH MARGIN SHARING 15 2008
2010/0183,088 CALIBRATION OF TRANSMIT AND RECEIVE CHAINS IN A MIMO COMMUNICATION SYSTEM 31 2008
2010/0208,841 TRANSMIT DIVERSITY PROCESSING FOR A MULTI-ANTENNA COMMUNICATION SYSTEM 18 2009
2010/0119,001 MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES 38 2009
2010/0260,060 INTEGRATED CALIBRATION PROTOCOL FOR WIRELESS LANS 40 2010
2011/0235,744 PILOTS FOR MIMO COMMUNICATION SYSTEMS 26 2011
2012/0176,928 CHANNEL CALIBRATION FOR A TIME DIVISION DUPLEXED COMMUNICATION SYSTEM 16 2012
2013/0235,825 MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES 14 2013
2013/0279,614 OFDM COMMUNICATION SYSTEM WITH MULTIPLE OFDM SYMBOL SIZES 16 2013
 
TECHNOLOGY HOLDING COMPANY II (1)
6348036 Surgical retractor and tissue stabilization device 50 1999
 
ATHEROS COMMUNICATIONS, INC. (1)
2003/0039,317 Method and apparatus for constructing a sub-carrier map 60 2001
 
ERICSSON AB (4)
6952426 Method and apparatus for the transmission of short data bursts in CDMA/HDR networks 29 2000
2002/0071,445 Method and apparatus for the transmission of short data bursts in CDMA/HDR networks 11 2000
7551580 Radio telecommunications system and method of operating the same with reduced delays for data transmission over a radio interface 28 2001
2004/0047,292 Radio telecommunications system and method of operating the same with reduced delays for data transmission over a radio interface 29 2003
 
FRANCE BREVETS (2)
7099377 Method and device for interference cancellation in a CDMA wireless communication system 50 2002
2003/0189,972 Method and device for interference cancellation in a CDMA wireless communication system 3 2002
 
KAON SYSTEMS, INC. (1)
6751444 Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems 189 2001
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (4)
5471647 Method for minimizing cross-talk in adaptive transmission antennas 160 1993
5479447 Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines 844 1993
7158563 Dynamic digital communication system control 76 2001
2003/0086,514 Dynamic digital communication system control 37 2001
 
ALCATEL LUCENT (2)
6801790 Structure for multiple antenna configurations 92 2001
2002/0132,600 Structure for multiple antenna configurations 33 2001
 
ALCATEL-LUCENT USA INC. (4)
6888809 Space-time processing for multiple-input, multiple-output, wireless systems 137 2000
7116652 Rate control technique for layered architectures with multiple transmit and receive antennas 61 2001
2003/0076,797 Rate control technique for layered architectures with multiple transmit and receive antennas 35 2001
7242727 Method of determining transmit power for transmit eigenbeams in a multiple-input multiple-output communications system 34 2003
 
THOMSON LICENSING (2)
* 6697346 Automatic determination point for random access channel partitioning scheme 61 1999
2005/0147,177 Method of controlling signal transmission in Multi-Input/Multi-Output system 36 2004
 
Ericsson GE Mobile Communications Inc. (2)
5404355 Method for transmitting broadcast information in a digital control channel 258 1992
5506861 System and method for joint demodulation of CDMA signals 87 1993
 
ERICSSON INC. (6)
* 5491837 Method and system for channel allocation using power control and mobile-assisted handover measurements 341 1994
6333953 System and methods for selecting an appropriate detection technique in a radiocommunication system 51 1997
6141388 Received signal quality determination method and systems for convolutionally encoded communication channels 112 1998
6768727 Fast forward link power control for CDMA system 83 2000
6996380 Communication system employing transmit macro-diversity 37 2001
2003/0092,456 Communication system employing transmit macro-diversity 25 2001
 
AWARE, INC. (1)
2006/0018,395 Systems and methods for a multicarrier modulation system with a variable margin 32 2005
 
ROVI TECHNOLOGIES CORPORATION (2)
6532562 Receiver-driven layered error correction multicast over heterogeneous packet networks 77 1999
6594798 Receiver-driven layered error correction multicast over heterogeneous packet networks 139 1999
 
VECIMA NETWORKS INC. (1)
7327800 System and method for data detection in wireless communication systems 82 2003
 
ALCATEL N.V. (1)
5790550 Method for allocating data elements to a set of carriers, mapping unit and modulator to perform this method 85 1996
 
SYNAPTICS INCORPORATED (1)
6205410 System and method for bit loading with optimal margin assignment 74 1998
 
RPX CORPORATION (2)
6920194 Method and system for detecting, timing, and correcting impulse noise 48 2001
2004/0252,632 Method and apparatus for multi-user multi-input multi-output transmission 110 2003
 
FRANCE TELECOM (2)
7127009 Method of coding/decoding a digital data stream coded with bitwise interleaving in multiple transmission and reception in the presence of intersymbol interference and corresponding system 32 2002
7298778 Sub-optimal iterative receiver method and system for a high-bit-rate CDMA transmission system 31 2002
 
NATIONAL UNIVERSITY OF SINGAPORE (1)
6694155 Downlink beamforming method 51 2000
 
Tachyon, Inc. (1)
6735188 Channel encoding and decoding method and apparatus 84 1999
 
F. POSZAT HU, L.L.C. (1)
6347234 Practical space-time radio method for CDMA communication capacity enhancement 145 1999
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
2004/0160,987 Method and apparatus for setting a guard interval in an OFDM communication 21 2004
 
AT&T CORP. (6)
6005876 Method and apparatus for mobile data communication 149 1996
6131016 Method and apparatus for enhancing communication reception at a wireless communication terminal 267 1997
6178196 Combined interference cancellation and maximum likelihood decoding of space-time block codes 103 1998
6532225 Medium access control layer for packetized wireless systems 114 1999
6711121 Orthogonal code division multiplexing for twisted pair channels 25 1999
6330277 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 41 2001
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (2)
9240871 MIMO WLAN system 1 2008
9013974 MIMO WLAN system 4 2014
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Oct 29, 2017
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 29, 2021
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 29, 2025
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00