ClassID:

225681

H04L25/0236 - 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 with extension to other symbols using estimation of the other symbols

Recent Application in this class:
#1
20250233777
2025-07-17

SYSTEM AND METHOD FOR BLIND CHANNEL ESTIMATION AND COHERENT DIFFERENTIAL EQUALIZATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) RECEIVER

#2
20250055738
2025-02-13

Receiver for and method of receiving symbols over time varying channels with Doppler spread

#3
20240291694
2024-08-29

METHOD AND APPARATUS FOR DETERMINING SYMBOLS TRANSMITTED VIA ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SIGNALS

#4
20240275642
2024-08-15

SYSTEM AND METHODS FOR AI-ASSISTED WIRELESS CHANNEL PREDICTION AND ESTIMATION

#5
20240267262
2024-08-08

Data-aided channel tracking for OFDM systems

#6
20240031203
2024-01-25

System and method for blind channel estimation and coherent differential equalization in an orthogonal frequency division multiplexing (OFDM) receiver

#7
20220353111
2022-11-03

BP equalization method, device, communication apparatus and storage medium

#8
20220200825
2022-06-23

System and method for blind channel estimation and coherent differential equalization in an orthogonal frequency division multiplexing (OFDM) receiver

#9
20210194732
2021-06-24

Iterative channel estimation and equalization with superimposed reference signals

#10
20210083906
2021-03-18

Decoder-supported iterative channel estimation

#11
20200322185
2020-10-08

Iterative channel estimation and equalization with superimposed reference signals

#12
20200119959
2020-04-16

Non-staggered reference signals and repeated pilots in orthogonal frequency-division multiplexing

#13
20200092142
2020-03-19

High efficiency long training field symbol transmission for multiple transmission streams

#14
20200028551
2020-01-23

Data detection in MIMO systems with demodulation and tracking reference signals

#15
20190245652
2019-08-08

RECEPTION DEVICE, COMMUNICATION DEVICE, AND DEMODULATION METHOD

#16
20190074856
2019-03-07

Symbol rate estimating device and method and adjacent channel interference detecting device

#17
20190068320
2019-02-28

Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems

#18
20180294997
2018-10-11

Apparatus and method for estimating downlink channel in wireless communication system

#19
20180227069
2018-08-09

Method and device for receiving uplink signal using differential modulation scheme with interference cancellation and channel estimation

#20
20180167237
2018-06-14

Data detection in MIMO systems with demodulation and tracking reference signals

#21
20180160404
2018-06-07

Wireless communication systems and methods of operating the same

#22
20180115448
2018-04-26

Non-staggered reference signals and repeated pilots in orthogonal frequency-division multiplexing

#23
20170264466
2017-09-14

Noise and interference estimation in wireless systems using multiple transmission time intervals

#24
20170230202
2017-08-10

Channel estimation for FBMC modulation

#25
20170048086
2017-02-16

Phase noise estimation

#26
20170006511
2017-01-05

Method of interference cancellation and method of detection of erroneous neighbour cell measurements

#27
20160352463
2016-12-01

Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems

#28
20160234844
2016-08-11

Transmission and receiving method in a wireless communication system

#29
20160219533
2016-07-28

Method and network node for handling AGC and TPC scaling

#30
20160072657
2016-03-10

Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems

#31
20160043850
2016-02-11

Techniques for improving channel estimation and tracking in a wireless communication system

#32
20160013904
2016-01-14

Method and apparatus for receiving control information in wireless communication system

#33
20150270926
2015-09-24

Method and system for forward error correction decoding with parity check for use in low complexity highly-spectrally efficient communications

#34
20150215063
2015-07-30

Pilot aided data transmission and reception with interference mitigation in wireless systems

#35
20150195107
2015-07-09

Channel estimation in wireless communication

#36
20150172078
2015-06-18

Decision feedback equalizer for highly spectrally efficient communications

#37
20150156670
2015-06-04

Method and apparatus for equalization processing in a wireless communication receiver

#38
20150131709
2015-05-14

Fine phase estimation for highly spectrally efficient communications

#39
20150078470
2015-03-19

Extrapolating channel state information (“CSI”) estimates from multiple packets sent over different frequency channels to generate a combined CSI estimate for a MIMO-OFDM system

#40
20150071389
2015-03-12

Multi-mode receiver for highly-spectrally-efficient communications

#41
20150063499
2015-03-05

Timing pilot generation for highly-spectrally-efficient communications

#42
20150055722
2015-02-26

Adaptive non-linear model for highly-spectrally-efficient communications

#43
20140376650
2014-12-25

Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems

#44
20140341050
2014-11-20

Channel estimate under non-uniform reference signal pattern

#45
20140328428
2014-11-06

Multi-mode transmitter for highly-spectrally-efficient communications

#46
20140294055
2014-10-02

Multi-mode frequency domain equalization with adaptation to varying channel conditions

#47
20140270022
2014-09-18

Data signal correction circuit, receiver, and data signal correction method

#48
20140247904
2014-09-04

Pilot symbol generation for highly-spectrally-efficient communications

#49
20140205044
2014-07-24

Turbo channel estimation for OFDM systems

#50
20140161170
2014-06-12

Feed forward equalization for highly-spectrally-efficient communications

#51
20140133540
2014-05-15

Low-complexity, highly-spectrally-efficient communications

#52
20140119351
2014-05-01

Detecting delimiters for low-overhead communication in a network

#53
20140112250
2014-04-24

Method of interference cancellation and method of detection of erroneous neighbour cell measurements

#54
20140072307
2014-03-13

Channel estimation for optical orthogonal frequency division multiplexing systems

#55
20130343282
2013-12-26

Providing channel state information about a radio channel

#56
20130265926
2013-10-10

Methods and apparatuses for P-CCPCH-aided channel estimation in wireless systems

#57
20130034017
2013-02-07

Techniques for improving channel estimation and tracking in a wireless communication system

#58
20130022161
2013-01-24

Turbo channel estimation for OFDM systems

#59
20130022158
2013-01-24

Channel estimation method and system for inter-carrier interference-limited wireless communication network

#60
20120281789
2012-11-08

Characterizing channel response using data tone decision feedback

#61
20120219093
2012-08-30

Method and apparatus for channel quality measurements

#62
20120155574
2012-06-21

Receiver and method for processing radio signals using soft pilot symbols

#63
20120093246
2012-04-19

Channel estimation method

#64
20110293052
2011-12-01

Mobile OFDM receiver

#65
20110293042
2011-12-01

Combining pilot-symbol-based phase estimation with data-symbol-based phase estimation

#66
20110280332
2011-11-17

Providing delimiters for low-overhead communication in a network

#67
20110280329
2011-11-17

Channel estimation for low-overhead communication in a network

#68
20110268200
2011-11-03

Delayed acknowledgements for low-overhead communication in a network

#69
20110268161
2011-11-03

Repeating for low-overhead communication in a network

#70
20110267956
2011-11-03

Detecting delimiters for low-overhead communication in a network

#71
20110249773
2011-10-13

Apparatus and method for estimating channel in wireless communication system

#72
20110243263
2011-10-06

Method and arrangements for estimating IQ-imbalance

#73
20110235729
2011-09-29

Receiver with high performance channel estimation

#74
20110158302
2011-06-30

Iterative estimator and method of channel and noise variance for multiple input multiple output orthogonal frequency division multiplexing system

#75
20110069790
2011-03-24

Receiver and method

#76
20100311350
2010-12-09

Continuous sequential scatterer estimation

#77
20100310016
2010-12-09

Receiver and method

#78
20100309383
2010-12-09

Reception device, integrated circuit, digital television receiver, reception method, and reception program

#79
20100284480
2010-11-11

Method and apparatus for channel quality measurements

#80
20100284443
2010-11-11

Channel estimation

#81
20100278288
2010-11-04

Channel estimation method and system for inter-carrier interference-limited wireless communication network

#82
20100215081
2010-08-26

Determining channel coefficients in a multipath channel

#83
20100158149
2010-06-24

Channel tracking with scattered pilots

#84
20100135425
2010-06-03

Turbo channel estimation for OFDM systems

#85
20100118993
2010-05-13

Method and device for determining an unabbreviated channel-impulse response in an OFDM transmission system

#86
20100111212
2010-05-06

Decision feedback channel estimation and pilot tracking for OFDM systems

#87
20100111157
2010-05-06

Wireless communication device, wireless communication method, signal processing device, signal processing method, and computer program

#88
20100091826
2010-04-15

Techniques for improving channel estimation and tracking in a wireless communication system

#89
20090323871
2009-12-31

Application of superfast algorithms to a pilot-based channel estimation process

#90
20090310715
2009-12-17

Receiver and method for processing radio signals using soft pilot symbols

#91
20090310708
2009-12-17

Transmitter and method for transmitting soft pilot symbols in a digital communication system

#92
20090310707
2009-12-17

TRANSMITTER AND METHOD FOR TRANSMITTING SOFT PILOT SYMBOLS IN A DIGITAL COMMUNICATION SYSTEM

#93
20090268695
2009-10-29

Method and system for processing reference signals in OFDM systems using transmission time interval groupings

#94
20090245338
2009-10-01

Method and device for channel response determination

#95
20090238134
2009-09-24

WIRELESS COMMUNICATION APPARATUS, WIRELESS TRANSMISSION METHOD AND WIRELESS RECEPTION METHOD

#96
20090232247
2009-09-17

Intercell interference mitigation apparatus and method

#97
20090180557
2009-07-16

Channel estimation device and related method of an orthogonal frequency division multiplexing system

#98
20090168910
2009-07-02

Transmitting device, transmitting/receiving device, transmitting method and transmitting/receiving method

#99
20090161782
2009-06-25

Characterizing channel response based on composite gain determination

#100
20090161781
2009-06-25

Characterizing channel response using data tone decision feedback

#101
20090161773
2009-06-25

Channel estimation of orthogonal frequency division multiplexed systems

#102
20090129493
2009-05-21

Receiver for differentially modulated multicarrier signals

#103
20090103600
2009-04-23

Mobile receiver equalizer structure for use in the ATSC standard

#104
20090052565
2009-02-26

Turbo channel estimation for OFDM systems

#105
20090042530
2009-02-12

Pilot-based two-dimensional channel estimation

#106
20090041134
2009-02-12

Methods and apparatus for channel estimation for wideband OFDM communication systems

#107
20080317153
2008-12-25

Adaptive technique for inter-carrier-interference canceling in OFDM systems

#108
20080310536
2008-12-18

Adaptive joint channel estimation and data demodulation for OFDM systems

#109
20080292015
2008-11-27

Channel Estimation Method of Mobile Terminal in Wireless Communication System and Channel Estimator Employing the Method

#110
20080285632
2008-11-20

Decoding of the overhead channels of the geosynchronous (GEO) satellite reverse link

#111
20080232488
2008-09-25

WIRELESS COMMUNICATIONS APPARATUS AND METHOD

#112
20080225934
2008-09-18

Method for determining a corrected variance representative of the condition of reception of signals representative of symbols

#113
20080219371
2008-09-11

Channel estimation and ICI cancellation for OFDM

#114
20080214115
2008-09-04

Apparatus and method for estimating channel in multi antenna wireless communication system

#115
20080205555
2008-08-28

Method and Apparatus for Channel Estimation

#116
20080192842
2008-08-14

Channel estimation

#117
20080192720
2008-08-14

Shared control channel data-assisted channel estimation

#118
20080181097
2008-07-31

METHOD AND OFDM RECEIVER WITH MULTI-DIMENSIONAL WINDOW PROCESSING UNIT FOR ROBUSTLY DECODING RF SIGNALS

#119
20080165672
2008-07-10

Joint channel estimation and data detection method for STBC/OFDM systems

#120
20080137788
2008-06-12

Apparatus and method of estimating channel based on channel delay spread in mobile communication system

#121
20080130626
2008-06-05

Channel estimation

#122
20080101489
2008-05-01

Method and system for improving channel estimation in a communications network

#123
20080101482
2008-05-01

Method and apparatus for refining MIMO channel estimation using the signal field of the data frame

#124
20070243837
2007-10-18

Pilot modulation error ratio for evaluation of transmitter performance

#125
20070230601
2007-10-04

Channel estimation method and apparatus using linear interpolation scheme in orthogonal frequency division multiplexing system and receiver using the same

#126
20070217533
2007-09-20

Apparatus and method for channel estimation in a wireless communication system

#127
20070217327
2007-09-20

A METHOD FOR SIGNAL PROCESSING AND A SIGNAL PROCESSOR IN AN OFDM SYSTEM

#128
20070211806
2007-09-13

System and method for channel estimation

#129
20070183519
2007-08-09

Method for channel estimation in orthogonal frequency division multiplexing system and device thereof

#130
20070153927
2007-07-05

Receiver apparatus of the adaptive ICI cancellation iterative receiver in wireless communication system and ICI cancellation method

#131
20070153922
2007-07-05

Receiver and method for channel estimation for multicarrier communication systems

#132
20070149149
2007-06-28

Mobile terminal apparatus and channel compensation method of the same

#133
20070127358
2007-06-07

Phase correction in a test receiver

#134
20070121554
2007-05-31

Interference cancellation in wireless communication

#135
20070064824
2007-03-22

Hybrid domain block equalizer

#136
20070064772
2007-03-22

Adaptive channel measurement reporting

#137
20070053454
2007-03-08

Compensation method and apparatus in orthogonal frequency division multiplexing (OFDM) systems

#138
20070036243
2007-02-15

Channel estimation using pilot symbols

#139
20070030930
2007-02-08

Channel estimation and/or equalization using repeated adaptation

#140
20070030827
2007-02-08

Channel estimation in CDMA communications systems using both lower power pilot channel and higher power date channel

#141
20070002979
2007-01-04

Iterative channel estimation using pilot signals

#142
20060285611
2006-12-21

Method and radio receiver for increasing number of symbols used as pilot symbols in communication system

#143
20060239177
2006-10-26

Communication unit and method of channel estimation in an ofdm communication system

#144
20060234633
2006-10-19

Simultaneous channel estimation of a carrier and an interferer

#145
20060233268
2006-10-19

Channel estimation using a minimized channel prediction interval

#146
20060198449
2006-09-07

Receiver for a multi-carrier communication system

#147
20060120267
2006-06-08

Receiver for a multi-carrier communication system

#148
20060109922
2006-05-25

Iterative channel and interference estimation with dedicated pilot tones for OFDMA

#149
20060072692
2006-04-06

Communication channel tracking apparatus

#150
20060062336
2006-03-23

Method of channel estimation

#151
20060029166
2006-02-09

SOFT ADAPTIVE VITERBI EQUALIZING METHOD AND RELATED APPARATUS THEREOF

#152
20060018297
2006-01-26

Channel tracking with scattered pilots

#153
20060010361
2006-01-12

Method and apparatus of compensating for signal receiving error at receiver in packet-based communication system

#154
20050286406
2005-12-29

Hybrid type channel estimation method and system for mobile environment

#155
20050276360
2005-12-15

Receiver, a transmitter, a radio communication system and a channel estimation method

#156
20050276357
2005-12-15

Correction method for time-varying channel in a time-slot division mobile communication system

#157
20050226341
2005-10-13

Decision feedback channel estimation and pilot tracking for OFDM systems

#158
20050201493
2005-09-15

Single-antenna interference cancellation receiver in time slot communication system

#159
20050185738
2005-08-25

Payload based channel estimation of a wireless channel

#160
20050152478
2005-07-14

Data-aided channel estimation

#161
20050135324
2005-06-23

Apparatus for OFDMA transmission and reception for coherent detection in uplink of wireless communication system and method thereof

#162
20050118955
2005-06-02

Method for prediction of a channel coefficient

#163
20050107057
2005-05-19

MIMO communication system

#164
20050013348
2005-01-20

Sub-optimal iterative receiver method and system for a high-bit-rate CDMA transmission system