ClassID:

223624

H04B7/0667 - CPC Classification

Classification description:

Radio transmission systems, i.e. using radiation field; Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal

Sub-classes:
Recent Application in this class:
#1
20260012235
2026-01-08

SPECTRAL EFFICIENCY USING CANONICAL CORRELATION ANALYSIS

#2
20250309965
2025-10-02

METHOD OF SIGNAL GENERATION AND SIGNAL GENERATING DEVICE

#3
20250007586
2025-01-02

TEMPORAL AND SPATIAL PRECODING OF DOWNLINK SIGNALS

#4
20250007580
2025-01-02

METHODS AND APPARATUS TO FORM AN IMAGE WITH DYNAMIC DELAY AND GAIN BEAMFORMING

#5
20240204850
2024-06-20

METHOD OF SIGNAL GENERATION AND SIGNAL GENERATING DEVICE

#6
20240106505
2024-03-28

Transmit antenna diversity wireless audio system

#7
20240064794
2024-02-22

SCHEDULING METHOD FOR BEAMFORMING AND NETWORK ENTITY

#8
20240056157
2024-02-15

METHOD FOR SELECTING CYCLIC SHIFT DIVERSITY SEQUENCE, AND RELATED APPARATUS

#9
20230179280
2023-06-08

Method of signal generation and signal generating device

#10
20230136372
2023-05-04

System and method for time-delay based hybrid beamforming

#11
20220385348
2022-12-01

Transmit antenna diversity wireless audio system

#12
20220140905
2022-05-05

Derivation method, communication system and accommodation station apparatus

#13
20220109599
2022-04-07

METHOD OF SIGNAL GENERATION AND SIGNAL GENERATING DEVICE

#14
20220069885
2022-03-03

Radio devices with switchable antennas

#15
20220029687
2022-01-27

Method for selecting cyclic shift diversity sequence, and related apparatus

#16
20210306195
2021-09-30

Method of signal generation and signal generating device

#17
20210105092
2021-04-08

Scalable Decentralized Redistributor and Method of Redistributing Signals

#18
20210028827
2021-01-28

Control device, delay difference adjustment method, and non-transitory computer readable medium for storing delay difference adjustment program

#19
20200252161
2020-08-06

Transmission of symbols in a MIMO environment using Alamouti based codes

#20
20200204244
2020-06-25

Spatial redistributors and methods of redistributing mm-wave signals

#21
20200021475
2020-01-16

Method of signal generation and signal generating device

#22
20190312620
2019-10-10

Tunable passive time-delay structure for adjusting a direction of a beamforming pattern

#23
20190273768
2019-09-05

Data transmission method in wireless communication system, and apparatus therefor

#24
20190260513
2019-08-22

Transmission of symbols in a MIMO environment using alamouti based codes

#25
20190238200
2019-08-01

Transmission apparatus, transmission method, reception apparatus, and reception method

#26
20190191444
2019-06-20

Method for transmitting or receiving channel state information reference signal in wireless communication system and device therefor

#27
20190158330
2019-05-23

Method of signal generation and signal generating device

#28
20190020399
2019-01-17

Beamforming using passive time-delay structures

#29
20180375607
2018-12-27

Optical transmission system, optical transmission apparatus, and optical reception apparatus

#30
20180375550
2018-12-27

Simultaneous communication through multiple beams of a wireless node

#31
20180367189
2018-12-20

Rate-adaptive multiple input/multiple output (MIMO) systems

#32
20180331786
2018-11-15

Transmission of symbols in a MIMO environment using alamouti based codes

#33
20180323847
2018-11-08

Methods, network node and communication device for transmitting data

#34
20180270725
2018-09-20

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#35
20180270096
2018-09-20

Method of signal generation and signal generating device

#36
20180254812
2018-09-06

Method for transmitting or receiving channel state information in wireless communication system and device therefor

#37
20180198660
2018-07-12

Multiplexing uplink transmissions with transmit diversity with single carrier waveform

#38
20180167167
2018-06-14

Transmission of symbols in a MIMO environment using Alamouti based codes

#39
20180026694
2018-01-25

METHOD AND APPARATUS FOR COMMUNICATION BASED ON COMMON FEEDBACK INFORMATION IN MULTIPLE ANTENNA SYSTEM

#40
20170324517
2017-11-09

Transmission of symbols in a MIMO environment using Alamouti based codes

#41
20170244506
2017-08-24

Generating interference pattern for controlling inter-cell interference and method for signaling therefor

#42
20170237474
2017-08-17

Digital remote antennas operation

#43
20170230224
2017-08-10

Method of signal generation and signal generating device

#44
20170207832
2017-07-20

Rate-adaptive multiple input/multiple output (MIMO) systems

#45
20170187443
2017-06-29

Cyclic shift diversity in communication systems

#46
20170163328
2017-06-08

System and method for a beamformer

#47
20170005715
2017-01-05

Joint channel and phase noise estimation in control symbols of a millimeter wave link

#48
20160269091
2016-09-15

Wireless communication device, control method of wireless communication device and phase shifter

#49
20160134353
2016-05-12

Static delay compensation in a telecommunications system

#50
20160080066
2016-03-17

Transmitter diversity technique for wireless communications

#51
20160020841
2016-01-21

Digital retro-directive communication system and method thereof

#52
20160013925
2016-01-14

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#53
20150358058
2015-12-10

Wirelessly transmitting multi-cast signal using rateless codes

#54
20150341942
2015-11-26

Scheme for transmitting reference signal in wireless communication system

#55
20150333793
2015-11-19

METHOD FOR REDUNDANTLY AND SECURELY TRANSFERRING DATA FROM A DATA SOURCE TO A DATA SINK

#56
20150295688
2015-10-15

Method and device for transmitting control information

#57
20150188618
2015-07-02

Radio transmission apparatus and radio transmission method

#58
20150180628
2015-06-25

Method for transmitting reference signal to antenna port in wireless access system

#59
20150155927
2015-06-04

Digital retro-directive communication system and method thereof

#60
20150124794
2015-05-07

Method and system for compromise greenfield preambles for 802.11n

#61
20150063493
2015-03-05

Pilot signal transmitting method, and channel estimation method, apparatus, and system

#62
20150016570
2015-01-15

Method of signal generation and signal generating device

#63
20140357319
2014-12-04

BEAMFORMING SYSTEM AND METHOD FOR MODULAR PHASED ANTENNA ARRAY

#64
20140314174
2014-10-23

Transmitter diversity technique for wireless communications

#65
20140219264
2014-08-07

Method and system for compromise greenfield preambles for 802.11N

#66
20140211876
2014-07-31

Integrated circuit for controlling radio transmission and reception

#67
20140119484
2014-05-01

Transmission of symbols in a MIMO environment using Alamouti based codes

#68
20140036823
2014-02-06

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#69
20130301400
2013-11-14

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#70
20130128818
2013-05-23

Radio apparatus

#71
20130121307
2013-05-16

Method of signal generation and signal generating device

#72
20120321015
2012-12-20

Preamble formats for MIMO wireless communications

#73
20120310394
2012-12-06

Wireless sound transmission system and method

#74
20120307928
2012-12-06

Signaling and channel estimation for uplink transmit diversity

#75
20120294349
2012-11-22

Interference-weighted communication signal processing systems and methods

#76
20120250787
2012-10-04

SYSTEM ACCESS AND SYNCHRONIZATION METHODS FOR MIMO OFDM COMMUNICATIONS SYSTEMS AND PHYSICAL LAYER PACKET AND PREAMBLE DESIGN

#77
20120243626
2012-09-27

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#78
20120231755
2012-09-13

Radio transmission apparatus and radio transmission method

#79
20120155562
2012-06-21

Multi-antenna communication system for communicating between at least two telecommunications devices

#80
20120147930
2012-06-14

Wireless relay device and wireless relay method

#81
20120106659
2012-05-03

Digital retro-directive communication system and method thereof

#82
20120099474
2012-04-26

Diversity antenna system and transmission method

#83
20120027136
2012-02-02

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#84
20120027130
2012-02-02

Interference-weighted communication signal processing systems and methods

#85
20120008576
2012-01-12

Non-coherent detection method of the number of transmit antenna ports for OFDMA

#86
20110280331
2011-11-17

Preamble formats for MIMO wireless communications

#87
20110176599
2011-07-21

Rate-adaptive multiple input/multiple output (MIMO) systems

#88
20110170635
2011-07-14

Diversity technique for wireless communications

#89
20110170485
2011-07-14

Radio apparatus

#90
20110134904
2011-06-09

Method and apparatus for transmitting and receiving a data symbol stream

#91
20110103513
2011-05-05

APPARATUS AND METHOD OF MULTI-ANTENNA TRANSMITTING FOR TERRESTRIAL DTV BROADCASTING SIGNAL AND ADDITIONAL DATA

#92
20110090997
2011-04-21

Method for transmitting synchronization channel using multi-antenna

#93
20110069780
2011-03-24

Transmission of symbols in a MIMO environment using Alamouti based codes

#94
20110002412
2011-01-06

Method for determining demodulation reference signal in the uplink, UE and uplink system

#95
20110002315
2011-01-06

Digital multimedia local area wireless transmission system and local area wireless transmission method using the same

#96
20100322350
2010-12-23

Transmit spatial diversity for cellular single frequency networks

#97
20100278155
2010-11-04

Rate-adaptive multiple input/multiple output (MIMO) wireless system

#98
20100277318
2010-11-04

RFID tag system with block coding, such as space-time block coding

#99
20100248664
2010-09-30

Diversity receivers and methods for relatively-delayed signals

#100
20100085955
2010-04-08

Transmit diversity for SC-FDMA

#101
20100067599
2010-03-18

MIMO preamble for initial access with an unknown number of transmit antennas

#102
20100040164
2010-02-18

Method of ratio data emission, emitter and receiver using the method

#103
20100003931
2010-01-07

TRANSMISSION SCHEMES FOR MULTI-ANTENNA COMMUNICATION SYSTEMS UTILIZING MULTI-CARRIER MODULATION

#104
20090310725
2009-12-17

Space domain filter detecting method in a multi-antenna wireless communication system

#105
20090275283
2009-11-05

Use of intra-body communication

#106
20090268841
2009-10-29

POWER CONTROL SYSTEM AND METHOD FOR COMMUNICATION SYSTEM USING SPACE-TIME TRANSMIT DIVERSITY SCHEME

#107
20090258609
2009-10-15

Radio transmission apparatus and radio transmission method

#108
20090219898
2009-09-03

DEVICE AND METHOD FOR INCREASING THE ROBUSTNESS OR THE CAPACITY OF WIRELESS COMMUNICATION SYSTEMS

#109
20090202015
2009-08-13

Transmitter having full-diversity and full-rate, a linear space-time code generating method for the transmitter, and a MIMO system using same

#110
20090175376
2009-07-09

DATA COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM USING SPACE-TIME CODING

#111
20090092201
2009-04-09

Rate-adaptive multiple input/multiple output (MIMO) systems

#112
20090086657
2009-04-02

HYBRID AUTOMATIC REPEAT REQUEST BUFFER FLUSHING MECHANISM

#113
20090060076
2009-03-05

System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design

#114
20090036081
2009-02-05

Method and apparatus to process dedicated physical control channel (DPCCH) in a transmit antenna diversity (TXDIV) rake finger

#115
20090005120
2009-01-01

TRANSMISSION METHOD FOR COMMON CHANNELS

#116
20080310351
2008-12-18

Preamble formats for MIMO wireless communications

#117
20080279306
2008-11-13

Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits

#118
20080175221
2008-07-24

Wireless transmission system and wireless transmission method and wireless station and transmitting station for use therein

#119
20080165718
2008-07-10

Wireless multi-path transmission system (MIMO) with controlled repeaters in each signal path

#120
20080144738
2008-06-19

Beam space time coding and transmit diversity

#121
20080069256
2008-03-20

Ultra-wideband communication apparatus and methods

#122
20080064428
2008-03-13

Radio communication system, a transmitter and a receiver

#123
20080064335
2008-03-13

Radio communication system, a transmitter and a receiver

#124
20080063107
2008-03-13

Transmitter diversity technique for wireless communications

#125
20080049827
2008-02-28

Systems and methods for implementing path diversity in a wireless communication network

#126
20080008275
2008-01-10

Transmitter diversity technique for wireless communications

#127
20070293165
2007-12-20

Multi-connection, non-simultaneous frequency diversity in radio communication systems

#128
20070293164
2007-12-20

Multi-connection, non-simultaneous frequency diversity in radio communication systems

#129
20070268813
2007-11-22

Method of decoding a spatially multiplexed signal and its corresponding receiver

#130
20070264944
2007-11-15

Multi-connection, non-simultaneous frequency diversity in radio communication systems

#131
20070263735
2007-11-15

Wireless Communication Methods, Systems, and Signal Structures

#132
20070222677
2007-09-27

System and method for adjusting transmission phasing in a point-to-point communication link

#133
20070206662
2007-09-06

Emission for CDMA communications systems on the MIMO channel

#134
20070160156
2007-07-12

Wireless communication device employing interference-sensitive mode selection and associated methods

#135
20070110179
2007-05-17

Receiver diversity technique for wireless communications

#136
20070105508
2007-05-10

Wireless communication methods, systems, and signal structures

#137
20070066362
2007-03-22

Frame structure, system and method for OFDM communications

#138
20070064586
2007-03-22

Method and system for performing cell selection for OFDM communications

#139
20070058522
2007-03-15

Radio apparatus

#140
20070025236
2007-02-01

Method and system for performing synchronization in OFDM systems

#141
20060280262
2006-12-14

Transmit spatial diversity for cellular single frequency networks

#142
20060269009
2006-11-30

Transmission schemes for multi-antenna communication systems utilizing multi-carrier modulation

#143
20060258303
2006-11-16

Radio communication apparatus, transmitter apparatus, receiver apparatus and radio communication system

#144
20060209971
2006-09-21

Interference-weighted communication signal processing systems and methods

#145
20060182017
2006-08-17

Method and system for compromise greenfield preambles for 802.11n

#146
20060166626
2006-07-27

Rate-adaptive multiple input/multiple output (MIMO) systems

#147
20060159052
2006-07-20

Space division multiplex wireless communication system, device and method for the same

#148
20060121945
2006-06-08

Diversity branch delay alignment in radio base station

#149
20060107167
2006-05-18

Multiple antenna communication system using automatic repeat request error correction scheme

#150
20060077886
2006-04-13

Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system

#151
20060067421
2006-03-30

Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system

#152
20060057969
2006-03-16

Delay diversity in a wireless communication system

#153
20060056528
2006-03-16

Method of transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using multiple input multiple output scheme

#154
20060056358
2006-03-16

Signal analyzer and method for displaying power levels of code channels with orthogonal transmit diversity

#155
20060052065
2006-03-09

Transmit diversity fo base stations

#156
20060039328
2006-02-23

Data communication in a wireless communication system using space-time coding

#157
20060034383
2006-02-16

Systems and methods for coding in broadband wireless communication systems to achieve maximum diversity in space, time and frequency

#158
20060018394
2006-01-26

Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits

#159
20060013335
2006-01-19

Multi-connection, non-simultaneous frequency diversity in radio communication systems

#160
20050276347
2005-12-15

Method and apparatus for preamble training in a multiple antenna communication system

#161
20050180360
2005-08-18

Preamble formats for MIMO wireless communications

#162
20050152483
2005-07-14

Systems and methods for implementing path diversity in a wireless communication network

#163
20050148311
2005-07-07

Method and apparatus for improved throughput in a communication system

#164
20050135492
2005-06-23

Interference-weighted communication signal processing systems and methods

#165
20050117520
2005-06-02

Radio transmission device and radio transmission method

#166
20050053121
2005-03-10

Ultra-wideband communication apparatus and methods

#167
17486042
2022-06-21

One way ranging measurement using sounding sequence

#168
16679224
2020-08-18

System and method for reducing distortion in optic laser outputs

#169
14954537
2017-04-18

Beamforming engine