ClassID:

225678

H04L25/0228 - page 4 - CPC Classification

Classification description:

Baseband systems; Details ; arrangements for supplying electrical power along data transmission lines; Channel estimation using sounding signals with direct estimation from sounding signals

Recent Application in this class:
#901
20080125109
2008-05-29

Calibration method to achieve reciprocity of bidirectional communication channels

#902
20080123759
2008-05-29

Channel estimating apparatus and method for use in a broadband wireless communication system

#903
20080123547
2008-05-29

Method and apparatus for channel estimation in a wireless communication device

#904
20080117999
2008-05-22

Providing antenna diversity in a wireless communication system

#905
20080117997
2008-05-22

Multiple-input multiple-output multicarrier communication system with joint transmitter and receiver adaptive beamforming for enhanced signal-to-noise ratio

#906
20080112501
2008-05-15

Optimal estimation of distortion of a transmission medium using sequential emission of pairs of quadrature complementary sequences

#907
20080112386
2008-05-15

Channel estimation device

#908
20080107135
2008-05-08

Radio data transmission method employing several different pilot patterns, corresponding base station, mobile, system and reception method

#909
20080101506
2008-05-01

Receiver for the geosynchronous (GEO) satellite reverse link using tail-biting code

#910
20080101498
2008-05-01

Method and apparatus for transmitting/receiving feedback information in a wireless packet data communication system

#911
20080101497
2008-05-01

MIMO phase noise estimation and correction

#912
20080101214
2008-05-01

Pilot signal transmission method and mobile communication system

#913
20080095275
2008-04-24

Channel estimation system and method

#914
20080095256
2008-04-24

OFDM channel estimation system and method components

#915
20080095036
2008-04-24

Signal transmission in a wireless communication system

#916
20080089396
2008-04-17

Calibration correction for implicit beamforming in a wireless MIMO communication system

#917
20080084940
2008-04-10

OFDM receiver

#918
20080084938
2008-04-10

Intersymbol interference mitigation

#919
20080081671
2008-04-03

Mobile assisted downlink beamforming with antenna weight feedback

#920
20080080646
2008-04-03

Method and apparatus for iteratively calculating channel response estimates

#921
20080075201
2008-03-27

Insertion of repetitive PN sequences into DTV data fields

#922
20080075182
2008-03-27

Adaptive channel estimator and adaptive channel estimation method

#923
20080069265
2008-03-20

Transmitter

#924
20080063118
2008-03-13

Channel estimation for wireless systems without matrix inversion

#925
20080062953
2008-03-13

OFDMA with adaptive subcarrier-cluster configuration and selective loading

#926
20080056390
2008-03-06

METHOD AND SYSTEM FOR DOPPLER ESTIMATION

#927
20080051147
2008-02-28

Apparatus and method for allocating resource to mobile station connected to relay station in broadband wireless communication system

#928
20080045238
2008-02-21

Communication Systems

#929
20080043883
2008-02-21

CHANNEL ESTIMATION USING DYNAMIC-RANGE-LIMITED PILOT SIGNALS

#930
20080043615
2008-02-21

Multi-Rate Wireless Communication Apparatus and Code Distributing Method

#931
20080031370
2008-02-07

Method and apparatus for OFDM channel estimation

#932
20080025251
2008-01-31

Apparatus and method of providing relay service in broadband wireless access (BWA) communication system

#933
20080019426
2008-01-24

Channel estimation for time division duplex communication systems

#934
20080014870
2008-01-17

Method and system for explicit feedback with sounding packet for wireless local area networks (WLAN)

#935
20080008258
2008-01-10

WIRELESS RECEIVING APPARATUS AND METHOD

#936
20080002763
2008-01-03

Communication receiver with an adaptive equalizer

#937
20070298742
2007-12-27

Method and system for providing beamforming feedback in wireless communication systems

#938
20070291671
2007-12-20

Radio Communication Method, Radio Communication System and Radio Communication Equipment

#939
20070286064
2007-12-13

Transmission/reception apparatus and method for supporting both high rate packet data transmission and orthogonal frequency division multiplexing transmission in a mobile communication system

#940
20070280366
2007-12-06

Channel estimation

#941
20070280363
2007-12-06

Enhanced channel estimation for communication system receiver

#942
20070280340
2007-12-06

Apparatus and method for uplink channel sounding in a wireless communication system

#943
20070274335
2007-11-29

Channel allocation method for allocating channels to terminal apparatuses to be communicated and base station apparatus utilizing the same

#944
20070263667
2007-11-15

System and method for I/Q imbalance compensation

#945
20070263564
2007-11-15

MIMO wireless communication greenfield preamble formats

#946
20070263529
2007-11-15

Receiver Apparatus and Transmitter Apparatus

#947
20070258509
2007-11-08

Transmission method and transmission apparatus in an OFDM-CDMA communication system

#948
20070253504
2007-11-01

MIMO-OFDM transmitter

#949
20070253465
2007-11-01

Methods and apparatus to allocate reference signals in wireless communication systems

#950
20070249350
2007-10-25

Apparatus and method for canceling neighbor cell interference in broadband wireless communication system

#951
20070248196
2007-10-25

Method and apparatus for receiving signals by a plurality of antennas

#952
20070242732
2007-10-18

Spread spectrum receiver and channel compensation method thereof

#953
20070239815
2007-10-11

PIPELINE FFT ARCHITECTURE AND METHOD

#954
20070230544
2007-10-04

Adaptive pilot filter for a wireless communication system

#955
20070230388
2007-10-04

Methods and apparatus using cell-specific and common pilot subcarriers in multi-carrier, multi-cell wireless communication networks

#956
20070223359
2007-09-27

Method of OFDMA tone interference cancellation

#957
20070217530
2007-09-20

Method and apparatus for channel estimation using time-frequency localized pilots and de-noising techniques

#958
20070211619
2007-09-13

Method and apparatus for hybrid CDM OFDMA wireless transmission

#959
20070206698
2007-09-06

Transmission/reception apparatus and method for supporting MIMO technology in a forward link of a high rate packet data system

#960
20070206504
2007-09-06

Method and apparatus for calibration and channel state feedback to support transmit beamforming in a MIMO system

#961
20070201587
2007-08-30

Wireless receiver apparatus

#962
20070201572
2007-08-30

Method and apparatus for transmission and reception within an OFDM communication system

#963
20070201569
2007-08-30

Apparatus, method and computer program product providing joint detection for increasing throughout with data in uplink that multiplexes users using codes and that multiplexes users using frequency multiplexing

#964
20070197166
2007-08-23

Receiver apparatus, receiving method, and wireless communication system

#965
20070195811
2007-08-23

Wireless communication system, associated methods and data structures

#966
20070189404
2007-08-16

Method and apparatus for pilot signal transmission

#967
20070171995
2007-07-26

Method and apparatus for increasing the number of orthogonal signals using block spreading

#968
20070165567
2007-07-19

Preamble sequencing for random access channel in a communication system

#969
20070153930
2007-07-05

Apparatus, method and computer program product providing joint synchronization using semi-analytic root-likelihood polynomials for OFDM systems

#970
20070153731
2007-07-05

VARYING SIZE COEFFICIENTS IN A WIRELESS LOCAL AREA NETWORK RETURN CHANNEL

#971
20070153673
2007-07-05

Orthogonal frequency multi-carrier transmission device and transmission method

#972
20070149149
2007-06-28

Mobile terminal apparatus and channel compensation method of the same

#973
20070147479
2007-06-28

Receiving apparatus and channel estimating apparatus

#974
20070147289
2007-06-28

Mobile terminal apparatus and channel compensation method of the same

#975
20070142058
2007-06-21

Communication terminal, mobile communication system, and communication control method

#976
20070140323
2007-06-21

Coarse bin frequency synchronization in a communication system

#977
20070133717
2007-06-14

Apparatus, method and computer program product providing a computationally efficient maximum likelihood joint synchronization and channel estimation algorithm

#978
20070133716
2007-06-14

Digital multimedia broadcasting receiver having improved reception capability and channel estimation method of the same

#979
20070133708
2007-06-14

Method and apparatus for allocating transmission power in communication system with multiple antennas

#980
20070133696
2007-06-14

Kalman filter for channel estimation in OFDM systems

#981
20070133390
2007-06-14

Synchronization codes for wireless communication

#982
20070129018
2007-06-07

Wireless communication system, associated methods and data structures

#983
20070127602
2007-06-07

Method and system of channel estimation

#984
20070127588
2007-06-07

Method and apparatus for channel and noise estimation

#985
20070116095
2007-05-24

Method for transmission in a cellular single frequency network, a base station, a mobile terminal and a mobile network therefor

#986
20070110201
2007-05-17

Method and apparatus for filtering noisy estimates to reduce estimation errors

#987
20070110172
2007-05-17

Channel estimation for ofdm systems

#988
20070104280
2007-05-10

Wireless data transmission method, and corresponding signal, system, transmitter and receiver

#989
20070099571
2007-05-03

Echo MIMO: a method for optimal multiple input multiple output channel estimation and matched cooperative beamforming

#990
20070092015
2007-04-26

Channel estimation in a multicarrier radio receiver

#991
20070072552
2007-03-29

Determination of a channel estimate of a transmission channel

#992
20070071147
2007-03-29

Pseudo eigen-beamforming with dynamic beam selection

#993
20070066237
2007-03-22

Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback

#994
20070054626
2007-03-08

Multi-carrier communications with adaptive cluster configuration and switching

#995
20070041463
2007-02-22

Superimposed training for multiple antenna communications

#996
20070041404
2007-02-22

Code division multiplexing in a single-carrier frequency division multiple access system

#997
20070036239
2007-02-15

Systems, methods, and apparatus for impulse noise mitigation

#998
20070036236
2007-02-15

Interference canceling matched filter (ICMF) and related methods

#999
20070036065
2007-02-15

Method and apparatus for communicating network identifiers in a communication system

#1000
20070030919
2007-02-08

Channel estimation for wireless systems with multiple transmit antennas

#1001
20070026808
2007-02-01

Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network

#1002
20070014272
2007-01-18

Pilot and data transmission in a quasi-orthogonal single-carrier frequency division multiple access system

#1003
20070004337
2007-01-04

Multicarrier receiver and method for carrier frequency offset correction and channel estimation for receipt of simultaneous transmissions over a multi-user uplink

#1004
20070002985
2007-01-04

Equalizer and equalization method

#1005
20060291582
2006-12-28

Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion

#1006
20060291470
2006-12-28

Enhanced frequency division multiple access for wireless communication

#1007
20060280266
2006-12-14

Optimum training sequences for wireless systems

#1008
20060274820
2006-12-07

Receiver for wireless communication network with extended range

#1009
20060274638
2006-12-07

Multiple-access hybrid OFDM-CDMA system

#1010
20060270360
2006-11-30

Apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas

#1011
20060268675
2006-11-30

Method and apparatus for transmitting/receiving a signal in an FFH-OFDM communication system

#1012
20060262875
2006-11-23

Data transmission method with phase shift error correction

#1013
20060256841
2006-11-16

Channel estimation for time division duplex communication systems

#1014
20060256761
2006-11-16

Rate selection for eigensteering in a MIMO communication system

#1015
20060245761
2006-11-02

Common electronic dispersion compensation arrangement for use with multiple optical communication channels

#1016
20060245349
2006-11-02

Collection window positioning using time tracking information

#1017
20060239226
2006-10-26

System and method for channel estimation in a delay diversity wireless communication system

#1018
20060234646
2006-10-19

Rate selection for a quasi-orthogonal communication system

#1019
20060233289
2006-10-19

Mixed direct-indirect adaptation procedure applied to receiver filter

#1020
20060233285
2006-10-19

Method for channel estimation when using different modulation methods within one signal interval

#1021
20060233097
2006-10-19

Time tracking for a communication system

#1022
20060227749
2006-10-12

Channel estimation for a cdma system using pilot symbols

#1023
20060227748
2006-10-12

Selection of a thresholding parameter for channel estimation

#1024
20060227005
2006-10-12

System and methods of communicating over noisy communication channels

#1025
20060215539
2006-09-28

Trend influenced time tracking

#1026
20060209732
2006-09-21

Pilot signal transmission for an orthogonal frequency division wireless communication system

#1027
20060209669
2006-09-21

Radio communication apparatus and subcarrier assignment method

#1028
20060193373
2006-08-31

Highly bandwidth-efficient communications

#1029
20060176987
2006-08-10

Method and system for channel equalization

#1030
20060171449
2006-08-03

Interference estimation in the presence of frequency errors

#1031
20060165191
2006-07-27

MIMO channel feedback protocols

#1032
20060140295
2006-06-29

Multi sub-carrier communication system and method providing improved frequency equalization performance

#1033
20060133542
2006-06-22

Methods and apparatus for decoder selection in communication systems

#1034
20060128326
2006-06-15

Low complexity adaptive channel estimation

#1035
20060125817
2006-06-15

Synchronization and estimation of a transmission channel

#1036
20060114981
2006-06-01

Joint channel and noise variance estimation in a wideband OFDM system

#1037
20060104376
2006-05-18

OFDM signal receiver and receiving method

#1038
20060098746
2006-05-11

Multi-channel time-reversal receivers for multi and 1-bit implementations

#1039
20060098605
2006-05-11

System and method for achieving timing compatibility with multi-antenna wireless data protocols

#1040
20060092054
2006-05-04

Recursive reduction of channel state feedback

#1041
20060083210
2006-04-20

OFDMA with adaptive subcarrier-cluster configuration and selective loading

#1042
20060062333
2006-03-23

Method and apparatus for channel impulse response estimation in GSM systems

#1043
20060062281
2006-03-23

Adaptive weight update method and system for a discrete multitone spread spectrum communications system

#1044
20060056494
2006-03-16

Channel estimation for time division duplex communication systems

#1045
20060056451
2006-03-16

Method for allocating subchannel in wireless network

#1046
20060056380
2006-03-16

Radio communication device and radio communication method

#1047
20060050655
2006-03-09

Communication system and method using a relay node

#1048
20060034380
2006-02-16

Channel estimation for wireless systems with multiple transit antennas

#1049
20060034227
2006-02-16

Training information transmission method in a block transmission system

#1050
20060030364
2006-02-09

Method and apparatus to improve channel quality for use in wireless communications systems with multiple-input multiple-output (MIMO) antennas

#1051
20060029165
2006-02-09

Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence

#1052
20060018389
2006-01-26

Delta modulation for channel feedback in transmit diversity wireless communication systems

#1053
20060018368
2006-01-26

Channel estimation system for a wideband code division multiple access (WCDMA) communication system

#1054
20060018297
2006-01-26

Channel tracking with scattered pilots

#1055
20060013327
2006-01-19

Apparatus for antenna diversity using joint maximal ratio combining

#1056
20060007990
2006-01-12

Method and apparatus for scaling parameter estimation in parametric generalized rake receivers

#1057
20050286788
2005-12-29

Optimal filter-bank wavelet modulation

#1058
20050286465
2005-12-29

Method and apparatus for accessing a wireless communication system

#1059
20050286406
2005-12-29

Hybrid type channel estimation method and system for mobile environment

#1060
20050272375
2005-12-08

Signal strength measurements in cellular telecommunication systems

#1061
20050265433
2005-12-01

Fading frequency decision device and method

#1062
20050265274
2005-12-01

Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system

#1063
20050259771
2005-11-24

Signal separation device and signal separation method

#1064
20050250460
2005-11-10

Apparatus and method for generating pseudo-replica signals in a CDMA communication system

#1065
20050249319
2005-11-10

Apparatus and method for channel estimation in an orthogonal frequency division multiplexing cellular communication system using multiple transmit antennas

#1066
20050249181
2005-11-10

Staggered pilot transmission for channel estimation and time tracking

#1067
20050249109
2005-11-10

Apparatus and method for improving signal-to-noise ratio in a multi-carrier CDMA communication system

#1068
20050232379
2005-10-20

Apparatus and method for channel estimation using a signal correlation and a signal energy to approximate a channel parameter

#1069
20050232378
2005-10-20

Apparatus and method for echo indicator generation

#1070
20050232135
2005-10-20

Radio communication system, terminal apparatus and base station apparatus

#1071
20050213689
2005-09-29

Demodulator circuit, radio communication system and communication semiconductor integrated circuit

#1072
20050180353
2005-08-18

MIMO wireless communication greenfield preamble formats

#1073
20050147176
2005-07-07

ICI cancellation method for an OFDM system

#1074
20050141649
2005-06-30

Method and apparatus for estimating channel response and receiver apparatus using the estimated channel response for OFDM radio communication systems

#1075
20050141459
2005-06-30

Apparatus and associated methods to reduce management overhead in a wireless communication system

#1076
20050135308
2005-06-23

Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system

#1077
20050117677
2005-06-02

Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration

#1078
20050111523
2005-05-26

Method and system for channel estimation in WLAN

#1079
20050107969
2005-05-19

Delay profile estimation apparatus and a correlating unit

#1080
20050094747
2005-05-05

Apparatus to estimate a channel using training sequence data for a digital receiver and a method thereof

#1081
20050085269
2005-04-21

Wireless communication using multi-transmit multi-receive antenna arrays

#1082
20050084000
2005-04-21

Method and apparatus for transmission and reception within an OFDM communication system

#1083
20050047491
2005-03-03

Method and apparatus for improving channel estimate based on short synchronization code

#1084
20050047444
2005-03-03

TFI-OFDM transmission/reception systems for UWB communication and methods thereof for mitigating interference from simultaneously operating piconets

#1085
20050036539
2005-02-17

Adaptive channel estimation by means of variation of the integration length during the despreading of spread-coded training symbol sequences

#1086
20050036537
2005-02-17

Channel estimation in a rake receiver of a CDMA communication system

#1087
20050009544
2005-01-13

Method for efficient equalization in a telecommunication system including at least one mobile transceiver

#1088
20050002461
2005-01-06

Channel estimation for block transmissions over time- and frequency-selective wireless fading channels

#1089
20050002326
2005-01-06

Method and apparatus for utilizing channel state information in a wireless communication system

#1090
17680193
2023-04-18

Location-based channel estimation in wireless communication systems

#1091
16438527
2020-08-11

Real time analog front end response estimation for sensing applications

#1092
16011017
2020-04-07

Methods and systems for channel estimation enhancement for multi-stream packets

#1093
15928188
2019-02-19

Two-stage spatial compression method

#1094
15611050
2019-07-09

Methods and apparatus for singular value decomposition with norm sorting

#1095
15583225
2018-11-06

Differential control of TTI bundling based on UE maximum transmit power

#1096
15164373
2017-08-22

Channel-state information determination in wireless networks

#1097
15152072
2018-06-19

Methods and systems for channel estimation enhancement for multi-stream packets

#1098
14612882
2016-06-28

System and method for increasing throughput in digital radio broadcast receiver

#1099
14251966
2015-04-07

Increasing the robustness of channel estimates derived through sounding for WLAN

#1100
13662877
2017-08-08

Channel estimation with co-channel pilots suppression