ClassID:

225686

H04L25/0246 - CPC Classification

Classification description:

Baseband systems; Details ; arrangements for supplying electrical power along data transmission lines; Channel estimation channel estimation algorithms using matrix methods with factorisation

Recent Application in this class:
#1
20250358153
2025-11-20

FIFTH GENERATION (5G) NEW RADIO CHANNEL EQUALIZATION

#2
20250150310
2025-05-08

GROUP SPARSITY AND IMPLICIT REGULARIZATION FOR MIMO CHANNEL ESTIMATION

#3
20250038793
2025-01-30

USER SCHEDULING METHOD IN MULTI-ANTENNA SIGNAL TRANSMISSION, AND ELECTRONIC DEVICE AND STORAGE MEDIUM

#4
20220239530
2022-07-28

Method for the acquisition of impulse responses, e.g. for ultra-wideband systems

#5
20210320825
2021-10-14

Fifth generation (5G) new radio channel equalization

#6
20200213162
2020-07-02

Millimeter wave channel estimation method

#7
20190260613
2019-08-22

Apparatus and method of non-iterative singular-value decomposition

#8
20190238368
2019-08-01

Computing transmit and receive filters for a network device

#9
20190103900
2019-04-04

System and method for selecting transmission parameters

#10
20180176044
2018-06-21

Computing transmit and receive filters for a network device

#11
20180076861
2018-03-15

Multi-stream faster-than-nyquist transmission using bandwidth partitioning

#12
20180034532
2018-02-01

Interference rejection combining method, device and storage medium

#13
20170279547
2017-09-28

Method and apparatus for interference estimation in wireless communication networks

#14
20170141788
2017-05-18

Semi-exhaustive recursive block decoding method and device

#15
20160218827
2016-07-28

System and method for decoding block of data received over communication channel

#16
20160164582
2016-06-09

Low complexity soft output MIMO decoder

#17
20150303970
2015-10-22

Prefiltering in MIMO receiver

#18
20150092583
2015-04-02

Methods and devices for determining effective mutual information

#19
20150063483
2015-03-05

Low complexity soft output MIMO decoder

#20
20140314169
2014-10-23

Method and apparatus for processing feedback in a wireless communication system

#21
20140269880
2014-09-18

Communication system and method using subspace interference cancellation

#22
20140226703
2014-08-14

Method and apparatus for recursively computing equalizer parameters for multiple-input multiple-output (MIMO) wireless communication channels

#23
20140185716
2014-07-03

MIMO receiver using lattic reduction and K-Best detection

#24
20140146862
2014-05-29

Process for performing a QR decomposition of a channel matrix in a MIMO wireless communication system, and receiver for doing the same

#25
20140126621
2014-05-08

Communications receiver with channel identification using A-priori generated gain vectors and associated methods

#26
20130308729
2013-11-21

Demapper for a multiple-input, multiple-output symbol receiver

#27
20130094380
2013-04-18

Feedback information transmission method, mobile station apparatus and base station apparatus

#28
20130083835
2013-04-04

Apparatus and method for channel quality feedback with a K-best detector in a wireless network

#29
20130039436
2013-02-14

Techniques for detection of signals in multiple-input multiple-output communication systems

#30
20120250804
2012-10-04

Efficient square-root free 2 symbol max-log receiver

#31
20120236972
2012-09-20

Signal separating device and signal separating method

#32
20120201320
2012-08-09

Sparse channel estimation using order extension for frequency and time selective MIMO wireless communication networks

#33
20120188899
2012-07-26

METHOD FOR PROCESSING CHANNEL STATE INFORMATION TERMINAL AND BASE STATION

#34
20120183088
2012-07-19

LATTICE REDUCTION ARCHITECTURE AND METHOD AND DETECTION SYSTEM THEREOF

#35
20120155579
2012-06-21

Efficient implementation of -algorithm based on QR decomposition for higher-order constellations

#36
20120147945
2012-06-14

MIMO signal detector, a method of detecting MIMO signals and a MIMO receiver

#37
20120033683
2012-02-09

Method and receiver for jointly decoding received communication signals using maximum likelihood detection

#38
20120020425
2012-01-26

Apparatus and method for minimizing errors by a cell edge user in a multi-cell communication system

#39
20110292983
2011-12-01

Receiving apparatus and receiving method

#40
20110274152
2011-11-10

Communication apparatus and communication method

#41
20110268230
2011-11-03

OPTIMIZING A RECEIVER FOR MULTIPLE ANTENNA CONFIGURATIONS

#42
20110261675
2011-10-27

Channel information generating device and method for spatial division multiplexing algorithm in a wireless communication system, and data transmission apparatus and method adopting the same

#43
20110206106
2011-08-25

Hierarchical feedback of channel state information for wireless communication

#44
20110200141
2011-08-18

Method and system for an efficient channel quantization method for MIMO pre-coding systems

#45
20110200133
2011-08-18

Receiving apparatus and receiving method

#46
20110150117
2011-06-23

System for transmitting and receiving channel state information

#47
20110142153
2011-06-16

MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM, RECEIVING APPARATUS AND METHOD OF RECEIVING SIGNALS

#48
20110090893
2011-04-21

Mobile communication system, receiver and method

#49
20110075650
2011-03-31

Polar cap reset method for differential codebook for wireless communications

#50
20110044407
2011-02-24

Adaptive QRD-M algorithm based signal detecting method by using constellation set grouping in spatial multiplexing multiple-input multiple-output system

#51
20110026629
2011-02-03

System and method for encoding and decoding of space-time block codes in data communication

#52
20110019696
2011-01-27

MMSE method and system

#53
20100322352
2010-12-23

Sphere detector performing depth-first search until terminated

#54
20100322351
2010-12-23

Channel state information feedback for coordinated multiple points transmission

#55
20100316169
2010-12-16

Method and system for operating a MIMO decoder

#56
20100310023
2010-12-09

Apparatus and method for estimating inverse channel of repeater's receiving channel

#57
20100246457
2010-09-30

Pre-coding/pre-decoding method and apparatus for data transmission in mobile communication system

#58
20100232549
2010-09-16

Signal separating device and signal separating method

#59
20100202571
2010-08-12

Methods and systems for frequency domain gain control in OFDM MIMO systems

#60
20100158162
2010-06-24

QR decomposition detection device and method supporting interference whitening

#61
20100158150
2010-06-24

Max-log stack decoder

#62
20100150274
2010-06-17

Method and System for Determining a Signal Vector

#63
20100150258
2010-06-17

Near soft-output maximum likelihood detection for multiple-input multiple-output systems using reduced list detection

#64
20100124301
2010-05-20

Method for re-ordering multiple layers and detecting signal of which the layers have different modulation orders in multiple input multiple output antenna system and receiver using the same

#65
20100124299
2010-05-20

Method for MIMO decoding, apparatus for MIMO decoding, and MIMO receiver

#66
20100074352
2010-03-25

Sphere decoding method applied to multi-input multi-output (MIMO) channel

#67
20100042666
2010-02-18

MIMO system method and device using sorted QR-decomposition (SQRD) for detecting transmission signal with division detection

#68
20100040177
2010-02-18

MIMO symbol detection for SNR higher and lower than a threshold

#69
20100027702
2010-02-04

Stream weight estimation and compensation in SIMO/MIMO OFDM receivers

#70
20100027693
2010-02-04

Stream weight estimation and compensation in SIMO/MIMO OFDM receivers

#71
20100014606
2010-01-21

Symbol detector and sphere decoding method

#72
20100008451
2010-01-14

Symbol detection in a MIMO communication system

#73
20100007565
2010-01-14

Detecting in-phase and quadrature-phase amplitudes of MIMO communications

#74
20100002786
2010-01-07

Signal detecting method and receiver using the same

#75
20090323871
2009-12-31

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

#76
20090296842
2009-12-03

Soft output M-algorithm receiver structures with generalized survivor selection criteria for MIMO systems

#77
20090232254
2009-09-17

Detector using limited symbol candidate generation for MIMO communication systems

#78
20090225815
2009-09-10

Communication system with receivers employing generalized two-stage data estimation

#79
20090213966
2009-08-27

System and method for generating soft output in hybrid MIMO systems

#80
20090213965
2009-08-27

MIMO multiplexing communication system and a signal separation method

#81
20090202005
2009-08-13

Method and apparatus for improved channel estimation for communications signal processing

#82
20090190683
2009-07-30

MIMO receiver using maximum likelihood detector in combination with QR decomposition

#83
20090185611
2009-07-23

Method for calculating filter coefficients for an equaliser in a communication receiver using hermitian optimisation

#84
20090154600
2009-06-18

QRD-QLD searching based sphere detector for MIMO receiver

#85
20090154586
2009-06-18

MIMO RECEIVER, QR DECOMPOSITION AND MULTI-DIMENSIONAL DETECTION USED IN THE MIMO RECEIVER

#86
20090154334
2009-06-18

QR decomposition apparatus and method for MIMO system

#87
20090147666
2009-06-11

Method, system and device for xDSL crosstalk cancellation

#88
20090129456
2009-05-21

Receiver with multiple antennas and method of receiving signals

#89
20090122929
2009-05-14

Apparatus and method for cancelling interferences between orthogonal coded signals in mobile communication system

#90
20090122889
2009-05-14

Method and apparatus for decomposing channel in closed-loop multiple input multiple output communication system

#91
20090116590
2009-05-07

Apparatus and method for detecting signal in multi-antenna system

#92
20090110037
2009-04-30

Channel estimation for time division duplex communication systems

#93
20090103641
2009-04-23

Maximum likelihood decoding method, equipment, and receiver

#94
20090080560
2009-03-26

CLOSED-LOOP BEAMFORMING WEIGHT ESTIMATION IN FREQUENCY DIVISION DUPLEX SYSTEMS

#95
20090074050
2009-03-19

Method and apparatus for receiving coded signals with the aid of channel state information

#96
20090060079
2009-03-05

METHOD FOR DETECTING A SYMBOL USING TRELLIS STRUCTURE ON THE MULTIPLE INPUT MULTIPLE OUTPUT MOBILE COMMUNICATION SYSTEM

#97
20090060078
2009-03-05

Near soft-output maximum-likelihood detection for multiple-input multiple-output systems

#98
20090052593
2009-02-26

Log likelihood ratio calculation method, transmit signal detection method, and receiver

#99
20090034664
2009-02-05

Maximum likelihood decoding method and receiver

#100
20090028267
2009-01-29

Rapid re-synchronization of communication channels

#101
20090028265
2009-01-29

Apparatus and method for detecting signal by maximum likelihood

#102
20090003499
2009-01-01

Method and apparatus for de-mapping symbol in multi-input multi-output communication system

#103
20090003476
2009-01-01

Method and apparatus for decoding using complex lattice reduction in a multiple antenna system

#104
20080317173
2008-12-25

Method and system for rate>1 SFBC/STBC using hybrid maximum likelihood (ML)/minimum mean squared error (MMSE) estimation

#105
20080317141
2008-12-25

Method for calculating functions of the channel matrices in linear MIMO-OFDM data transmission

#106
20080304464
2008-12-11

Low complexity precoding matrix selection

#107
20080298484
2008-12-04

Method and apparatus for detecting transmit signals in receiver in multiple-input multiple-output communication system

#108
20080292030
2008-11-27

Apparatus and method for decoding space-time block coded (STBC) signal

#109
20080240302
2008-10-02

Communication system with receivers employing generalized two-stage data estimation

#110
20080240277
2008-10-02

Reducing computational complexity in maximum likelihood MIMO OFDM decoder

#111
20080240272
2008-10-02

Systems and methods for N-dimensional leaf-node prediction for MIMO detection

#112
20080239937
2008-10-02

Mitigation of interference and crosstalk in communications systems

#113
20080198941
2008-08-21

Low-complexity scalable architecture for concatenation-assisted symbol-level combining

#114
20080187066
2008-08-07

Detection method and apparatus for a multi-stream MIMO

#115
20080137782
2008-06-12

Signal detection method and receiving apparatus in MIMO system

#116
20080112500
2008-05-15

Method and apparatus for processing feedback in a wireless communication system

#117
20080019426
2008-01-24

Channel estimation for time division duplex communication systems

#118
20080019262
2008-01-24

Wireless Communication Apparatus

#119
20080013444
2008-01-17

WIRELESS COMMUNICATIONS APPARATUS

#120
20070237067
2007-10-11

Apparatus and method for improved performance in radio telecommunication systems that use pulse-shaping filters

#121
20070223619
2007-09-27

Apparatus and method for feeding back information on channel state for scheduling in multiple antenna system

#122
20070165737
2007-07-19

Order recursive computation for a MIMO equalizer

#123
20070155353
2007-07-05

Method of secure WLAN communication

#124
20070153731
2007-07-05

VARYING SIZE COEFFICIENTS IN A WIRELESS LOCAL AREA NETWORK RETURN CHANNEL

#125
20070042741
2007-02-22

Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using QR and Eigenvalue Decompositions

#126
20070036250
2007-02-15

M-Algorithm multiuser detector with correlation based pruning

#127
20070036210
2007-02-15

Joint Space-Time Optimum Filters (JSTOF) with at Least One Antenna, at Least One Channel, and Joint Filter Weight and CIR Estimation

#128
20060285531
2006-12-21

Efficient filter weight computation for a MIMO system

#129
20060259535
2006-11-16

Tonal rotors

#130
20060256841
2006-11-16

Channel estimation for time division duplex communication systems

#131
20060233223
2006-10-19

Communication system with receivers employing generalized two-stage data estimation

#132
20060182196
2006-08-17

Method for link adaptation

#133
20060176983
2006-08-10

Wireless communications device providing enhanced block equalization and related methods

#134
20060165192
2006-07-27

Wireless communication system, receiver, demodulation method used for the system and receiver, and program thereof

#135
20060155798
2006-07-13

Eigenvalue decomposition and singular value decomposition of matrices using Jacobi rotation

#136
20060104381
2006-05-18

Beam-steering and beam-forming for wideband MIMO/MISO systems

#137
20060056494
2006-03-16

Channel estimation for time division duplex communication systems

#138
20060050655
2006-03-09

Communication system and method using a relay node

#139
20050259771
2005-11-24

Signal separation device and signal separation method

#140
20050237971
2005-10-27

Adaptive MIMO systems

#141
20050213640
2005-09-29

Communication system with receivers employing generalized two-stage data estimation

#142
20050175131
2005-08-11

Data processing method, equalizer and receiver

#143
20050147183
2005-07-07

Method for updating singular value decomposition of a transfer matrix

#144
20050018598
2005-01-27

Apparatus and method for improved performance in radio telecommunication systems that use pulse-shaping filters

#145
20050013347
2005-01-20

Generalized two-stage data estimation

#146
20050002359
2005-01-06

Apparatus, and associated method, for detecting data communicated to a receiving station in a multiple-channel communication system