ClassID:

223441

H04B1/70735 - CPC Classification

Classification description:

Details of transmission systems, not covered by a single one of groups - ; Details of transmission systems not characterised by the medium used for transmission; Spread spectrum techniques using direct sequence modulation; Synchronisation aspects Code identification

Recent Application in this class:
#1
20250286620
2025-09-11

GENERATING DOWNLINK FRAME AND SEARCHING FOR CELL

#2
20250253886
2025-08-07

METHOD FOR ENCODING AND DECODING A UWB MESSAGE USING A MODULATION GENERATING A TIME OFFSET OF THE DATA BITS

#3
20250110244
2025-04-03

MULTI-LEVEL AIDING SIGNAL TO SUPPORT RAPID COMMUNICATION

#4
20240146409
2024-05-02

Generating downlink frame and searching for cell

#5
20230223982
2023-07-13

WIRELESS COMMUNICATION DEVICE AND METHOD THAT UTILIZE SPREAD SPECTRUM MODULATION TO HIDE VENDOR INFORMATION

#6
20230144340
2023-05-11

Base station device, and mobile station device

#7
20220407594
2022-12-22

Generating downlink frame and searching for cell

#8
20220247450
2022-08-04

Method for piloting from bypass in a network with open wireless channels

#9
20220021514
2022-01-20

Low-complexity synchronization header detection

#10
20210376944
2021-12-02

Base station device, and mobile station device

#11
20210367698
2021-11-25

Data processing method and apparatus, device, storage medium, and processor

#12
20210281288
2021-09-09

Symbol-group based spreading schemes

#13
20210083717
2021-03-18

Physical broadcast channel sending/receiving method, and apparatus

#14
20210006388
2021-01-07

Low-complexity synchronization header detection

#15
20200374024
2020-11-26

Construction and application of an orthogonal code

#16
20200186324
2020-06-11

LOW-COMPLEXITY SYNCHRONIZATION HEADER DETECTION

#17
20200021382
2020-01-16

Base station device, and mobile station device

#18
20190357127
2019-11-21

Generating downlink frame and searching for cell

#19
20190326948
2019-10-24

Apparatus and receiver for performing synchronization in analog spread spectrum systems

#20
20190289561
2019-09-19

Systems and methods for timing synchronization and synchronization source selection for vehicle-to-vehicle communications

#21
20190273576
2019-09-05

Codeword adaptation for non-orthogonal coded access

#22
20190260419
2019-08-22

Symbol processing using processing sequences

#23
20190222340
2019-07-18

Enhanced Cell Search

#24
20190174443
2019-06-06

Method of performing cell search in wireless communication system

#25
20190173517
2019-06-06

Physical broadcast channel sending/receiving method, and apparatus

#26
20190028140
2019-01-24

Detection of scrambling code confusion

#27
20180367184
2018-12-20

Radio communication

#28
20180329071
2018-11-15

GPS holdover with selected bit prediction or omission

#29
20180316370
2018-11-01

Distortion cancellation device and method

#30
20180219643
2018-08-02

Base station device, and mobile station device

#31
20180160366
2018-06-07

Generating downlink frame and searching for cell

#32
20180123638
2018-05-03

Detection of scrambling code confusion

#33
20180048422
2018-02-15

Interference aware transceiver design for heterogeneous numerology systems

#34
20180013601
2018-01-11

Synchronization method, apparatus, and system

#35
20170311275
2017-10-26

Method of performing cell search in wireless communication system

#36
20170272948
2017-09-21

Method and apparatus for establishment of private communication between devices

#37
20170185049
2017-06-29

Satellite radio wave receiving apparatus, radio controlled watch, code signal acquiring method, and recording medium

#38
20170149471
2017-05-25

Timing estimation in communication systems

#39
20170078953
2017-03-16

Method and terminal for detecting discovery signal

#40
20170012728
2017-01-12

Base station device, and mobile station device

#41
20160295593
2016-10-06

Detection of scrambling code confusion

#42
20160219542
2016-07-28

User equipment and base station for frame timing and cell group synchronization

#43
20160066260
2016-03-03

Generating downlink frame and searching for cell

#44
20160049989
2016-02-18

Detection of scrambling code confusion

#45
20150341883
2015-11-26

Method of performing cell search in wireless communication system

#46
20150311947
2015-10-29

Method and device for searching cell

#47
20150288416
2015-10-08

Wireless communication synchronization system

#48
20150117498
2015-04-30

Adaptive infinite impulse response (IIR)-based code detection for symbol-level equalizer

#49
20140341260
2014-11-20

Robust, fast unused-code detection

#50
20140004851
2014-01-02

Detection of scrambling code confusion

#51
20130295871
2013-11-07

Signal receiver, portable computer and signal acquisition method used in satellite communication system

#52
20130250896
2013-09-26

Base station device, and mobile station device

#53
20130244642
2013-09-19

Method for blind estimation of a scrambling code for a CDMA 2000 uplink

#54
20130243041
2013-09-19

Method of blind estimation of a scrambling code of a WCDMA uplink

#55
20130208767
2013-08-15

Receiver for detection and time recovery of non-coherent signals and methods of operating same

#56
20130182748
2013-07-18

Method and apparatus for radio synchronization detection in a rake receiver

#57
20130136063
2013-05-30

PHY preamble format for wireless communication system

#58
20130100902
2013-04-25

Generating downlink frame and searching for cell

#59
20130089120
2013-04-11

Spectrum spread communication system

#60
20130064211
2013-03-14

Radio base station and control method for the same

#61
20130058362
2013-03-07

Receiving apparatus and method for multi-frame synchronization

#62
20130010780
2013-01-10

Fast timing acquisition in cell search

#63
20120320873
2012-12-20

Method and device for identifying neighboring pseudorandom number confusion

#64
20120219155
2012-08-30

Methods and devices for allocating scrambling codes

#65
20120213251
2012-08-23

Configurable all-digital coherent demodulator system for spread spectrum applications

#66
20120201335
2012-08-09

Start-up automatic frequency control (AFC) method and apparatus

#67
20120170520
2012-07-05

Method of performing cell search in wireless communication system

#68
20120163253
2012-06-28

TDD base station for code group synchronization

#69
20120154184
2012-06-21

Wireless communications system with secondary synchronization code based on values in primary synchronization code

#70
20120147877
2012-06-14

Wireless communications system with secondary synchronization code based on values in primary synchronization code

#71
20120147730
2012-06-14

Wireless communications system with secondary synchronization code based on values in primary synchronization code

#72
20120106484
2012-05-03

Pilot scrambling enabling direct pilot sequence detection in initial acquisition in Evolved UTRA

#73
20120087307
2012-04-12

Differential detection a communication system

#74
20120069923
2012-03-22

Method and apparatus for new cell identification in a WCDMA network with a given neighbor set

#75
20110274226
2011-11-10

Synchronization processing circuit and synchronization processing method in wireless communication system

#76
20110170509
2011-07-14

Base station device, and mobile station device

#77
20110142011
2011-06-16

Method and arrangement for mitigation of intercell interference in a cellular communication system

#78
20110122923
2011-05-26

Preamble detection apparatus, preamble detection method, and program

#79
20110064071
2011-03-17

Primary and secondary synchronization codes from first, second, third sequences

#80
20110064067
2011-03-17

Primary, secondary, and tertiary codes synchronizing slots in a frame

#81
20110009052
2011-01-13

Wireless communication apparatus, wireless communication method, and wireless communication system

#82
20100329313
2010-12-30

Processor for use as a path searcher of a spread spectrum receiver and a method of operation of the processor

#83
20100322117
2010-12-23

Methods and apparatus for initial acquisition in a communication system

#84
20100309900
2010-12-09

Searcher for multiple orthogonal channels with known data—WCDMA step2 search

#85
20100272034
2010-10-28

BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, CHANNEL ESTIMATION METHOD, TRANSMISSION ANTENNA DETECTION METHOD, AND PROGRAM

#86
20100265995
2010-10-21

Time divided pilot channel detection processing in a WCDMA terminal having a shared memory

#87
20100254304
2010-10-07

Differential detection unit for the zigbee 802.15.4 standard

#88
20100246525
2010-09-30

Pilot scrambling enabling direct pilot sequence detection in initial acquisition in evolved UTRA

#89
20100232397
2010-09-16

Method and apparatus for improved cell acquisition with reduced frequency error impact

#90
20100202316
2010-08-12

Steps one and three W-CDMA and multi-mode searching

#91
20100188982
2010-07-29

Base station device, mobile station device, communication system and communication method

#92
20100184396
2010-07-22

Configurable all-digital coherent demodulator system for spread spectrum applications

#93
20100177743
2010-07-15

Method and apparatus for blind code detection

#94
20100150354
2010-06-17

LOW I/O BANDWIDTH METHOD AND SYSTEM FOR IMPLEMENTING DETECTION AND IDENTIFICATION OF SCRAMBLING CODES

#95
20100142511
2010-06-10

Method and device for frame and slot synchronization

#96
20100099409
2010-04-22

Method of performing cell search in wireless communucation system

#97
20100099408
2010-04-22

Method of performing cell search in wireless communication system

#98
20100098031
2010-04-22

Apparatus, method and computer program product providing initial cell acquisition and pilot sequence detection

#99
20100091821
2010-04-15

Wireless communications system with secondary synchronization code based on values in primary synchronization code

#100
20100080192
2010-04-01

Cell timing acquisition in a W-CDMA hard handover

#101
20100054311
2010-03-04

WCDMA terminal baseband processing module having multi-path scanner module

#102
20100046404
2010-02-25

Acquisition circuit for low chip rate option for mobile telecommunication system

#103
20100040081
2010-02-18

Comma free codes for fast cell search using tertiary synchronization channel

#104
20100020751
2010-01-28

Mitigation of interference in cell search by wireless transmit and receive units

#105
20090325586
2009-12-31

Methods and apparatus for common channel cancellation in wireless communications

#106
20090325497
2009-12-31

RECEIVED COMMUNICATION SIGNAL PROCESSING METHODS AND COMPONENTS FOR WIRELESS COMMUNICATION EQUIPMENT

#107
20090285269
2009-11-19

PHY preamble format for wireless communication system

#108
20090274198
2009-11-05

Determination of active spreading codes and their powers

#109
20090268789
2009-10-29

Low I/O bandwidth method and system for implementing detection and identification of scrambling codes

#110
20090268644
2009-10-29

User equipment for synchronizing to a TDD base station

#111
20090252336
2009-10-08

Method for generating downlink frame, and method for searching cell

#112
20090252335
2009-10-08

Method for generating downlink frame, and method for searching cell

#113
20090252334
2009-10-08

Method for generating downlink frame, and method for searching cell

#114
20090245229
2009-10-01

Base station for transmitting a synchronization signal

#115
20090219889
2009-09-03

Method and apparatus for utilizing synchronization information

#116
20090219802
2009-09-03

Apparatus and method for transmitting data using a plurality of carriers

#117
20090213833
2009-08-27

Systems, apparatus and techniques for fast cell search and accurate synchronization in wireless communications

#118
20090201905
2009-08-13

Method and apparatus for estimating channelization codes in a wireless transmit/receive unit

#119
20090201887
2009-08-13

Method and apparatus for blind code detection

#120
20090135782
2009-05-28

Correlator for primary cell search using memory architecture

#121
20090131009
2009-05-21

RECEIVED COMMUNICATION SIGNAL PROCESSING METHODS AND COMPONENTS FOR WIRELESS COMMUNICATION EQUIPMENT

#122
20090122839
2009-05-14

Scrambling codes for secondary synchronization codes in wireless communication systems

#123
20090080372
2009-03-26

Base station device, and mobile station device

#124
20090059883
2009-03-05

RADIO BASE STATION AND METHOD OF RECEIVING PHYSICAL CONTROL CHANNEL

#125
20090054094
2009-02-26

Method for identifying a code group representative of a number of base stations

#126
20090046668
2009-02-19

Method and system for detecting and identifying scrambling codes

#127
20090041162
2009-02-12

Searcher for multiple orthogonal channels with known data WCDMA step2 search

#128
20090011762
2009-01-08

Method of performing cell search in wireless communication system

#129
20090011761
2009-01-08

Method of performing cell search in wireless communication system

#130
20090010312
2009-01-08

Method of performing cell search in wireless communication system

#131
20080310374
2008-12-18

Mitigation of interference in cell search by wireless transmit and receive units

#132
20080298529
2008-12-04

Acquisition circuit for low chip rate option for mobile telecommunication system

#133
20080285689
2008-11-20

Start-up automatic frequency control (AFC) method and apparatus

#134
20080247374
2008-10-09

Receiving station for CDMA wireless system and method

#135
20080244364
2008-10-02

Method And Apparatus For Code Group Identification And Frame Synchronization By Use Of Reed-Solomon Decoder And Reliability Measurement For UMTS W-CDMA

#136
20080170602
2008-07-17

Method and apparatus for complexity reduction in detection of delay and Doppler shifted signature sequences

#137
20080151839
2008-06-26

Frequency Synchronization During Cell Search in a Universal Mobile Telephone System Receiver

#138
20080144583
2008-06-19

Adaptive Frame Synchronization in a Universal Mobile Telephone System Receiver

#139
20080137776
2008-06-12

Method and system for sub-chip resolution for secondary cell search

#140
20080125155
2008-05-29

Radio access method, radio base station and radio terminal

#141
20080123763
2008-05-29

Systems and methods for rapid signal detection and identification

#142
20080095287
2008-04-24

Base station device in multi-carrier transmission, mobile station device, and cell search method

#143
20080095215
2008-04-24

Coherent detection without transmission preamble

#144
20080080470
2008-04-03

Spread spectrum communication device and spread spectrum communication method

#145
20080080463
2008-04-03

Synchronization for a wireless communication device using multiple synchronization channels

#146
20080075149
2008-03-27

Time divided pilot channel detection processing in WCDMA terminal having shared memory

#147
20080069182
2008-03-20

Spread spectrum communication device and spread spectrum communication method

#148
20080069078
2008-03-20

Spread spectrum communication device and spread spectrum communication method

#149
20080069077
2008-03-20

Spread spectrum communication device and spread spectrum communication method

#150
20080069076
2008-03-20

Spread spectrum communication device and spread spectrum communication method

#151
20080062952
2008-03-13

Spread spectrum communication device and spread spectrum communication method

#152
20080062903
2008-03-13

Spread spectrum communication device and spread spectrum communication method

#153
20080025376
2008-01-31

Cell search using rake searcher to perform scrambling code determination

#154
20070297540
2007-12-27

Method and system for detecting preambles in a multi-cell system

#155
20070293255
2007-12-20

Received communication signal processing methods and components for wireless communication equipment

#156
20070291730
2007-12-20

Method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system

#157
20070270273
2007-11-22

METHOD AND APPARATUS FOR FAST CELL SEARCH

#158
20070253471
2007-11-01

Gps Receiver Using Differential Correlation

#159
20070237212
2007-10-11

Method and apparatus for new cell identification in a WCDMA network with a given neighbor set

#160
20070230634
2007-10-04

Start-up automatic frequency control (AFC) method and apparatus

#161
20070217486
2007-09-20

Low I/O bandwidth method and system for implementing detection and identification of scrambling codes

#162
20070216549
2007-09-20

Method for encoded or encrypted bit stream synchronization

#163
20070202928
2007-08-30

Method and apparatus for user equipment (UE) channel acquisition in the presence of large frequency uncertainty in WCDMA signals

#164
20070195864
2007-08-23

Positioning of a path searcher window in a CDMA receiver

#165
20070177535
2007-08-02

Cell search process for wireless communication system

#166
20070153883
2007-07-05

Low I/O bandwidth method and system for implementing detection and identification of scrambling codes

#167
20070147613
2007-06-28

Low I/O bandwidth method and system for implementing detection and identification of scrambling codes

#168
20070140206
2007-06-21

Spread spectrum communication device and spread spectrum communication method

#169
20070129095
2007-06-07

Spread spectrum communication device and spread spectrum communication method

#170
20070116166
2007-05-24

Pilot scrambling enabling direct pilot sequence detection in initial acquisition in evolved UTRA

#171
20070098116
2007-05-03

Apparatus for performing initial synchronization and frame synchronization in mobile communications system and method thereof

#172
20070098053
2007-05-03

Multicarrier pilot structure for reliable frame detection

#173
20070091987
2007-04-26

Apparatus and method for detecting code of direct sequence spread spectrum signal

#174
20070041348
2007-02-22

Transmitting/receiving apparatus and method for cell search in a broadband wireless communications system

#175
20070025429
2007-02-01

WCDMA terminal baseband processing module having multi-path scanner module

#176
20070025428
2007-02-01

WCDMA terminal baseband processing module having cell searcher module

#177
20070014336
2007-01-18

Apparatus for rapid PN code acquisition

#178
20070010280
2007-01-11

Cell search process for wireless communication system

#179
20070008874
2007-01-11

User equipment for detecting short codes

#180
20060280230
2006-12-14

Wireless communications system with secondary synchronization code based on values in primary synchronization code

#181
20060280136
2006-12-14

User equipment for synchronizing to a TDD base station

#182
20060274712
2006-12-07

Multi-carrier operation in data transmission systems

#183
20060269064
2006-11-30

Low I/O bandwidth method and system for implementing detection and identification of scrambling codes

#184
20060268808
2006-11-30

Reduced cell acquisition time

#185
20060251039
2006-11-09

High-speed cell search system for CDMA

#186
20060245400
2006-11-02

High-speed cell search system for CDMA

#187
20060233226
2006-10-19

Method and apparatus for cell search in a W-CDMA system

#188
20060203781
2006-09-14

Spread spectrum communication device and spread spectrum communication method

#189
20060193305
2006-08-31

Frame synchronization in a universal mobile telephone system receiver

#190
20060188009
2006-08-24

Frame synchronization using soft decisions in a universal mobile telephone system receiver

#191
20060153113
2006-07-13

Radio communication terminal apparatus and radio communication base station apparatus

#192
20060140156
2006-06-29

Base station apparatus, mobile station apparatus, transmission method and receiving method in a CDMA/TDD mobile communication system

#193
20060140155
2006-06-29

Method and apparatus for acquiring code group in asynchronous wideband code division multiple access system using receiver diversity

#194
20060133552
2006-06-22

Configurable all-digital coherent demodulator system for spread spectrum applications

#195
20060133464
2006-06-22

Acquisition circuit for low chip rate option for mobile telecommunication system

#196
20060133321
2006-06-22

Method and apparatus for cell search in wireless communication system

#197
20060114942
2006-06-01

Apparatus and method for acquiring code group in asynchronous W-CDMA system

#198
20060114935
2006-06-01

Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced

#199
20060109822
2006-05-25

Information transmission method, mobile communications system, base station and mobile station

#200
20060109806
2006-05-25

Method and apparatus for estimating channelization codes in a wireless transmit/receive unit

#201
20060104389
2006-05-18

Configurable all-digital coherent demodulator system for spread spectrum applications

#202
20060098602
2006-05-11

Information transmission method, mobile communications system, base station and mobile station

#203
20060098601
2006-05-11

Information transmission method, mobile communication system, base station, and mobile station

#204
20060093021
2006-05-04

Code acquisition device and method using two-step search process in DS-CDMA UWB modem

#205
20060072515
2006-04-06

Method and apparatus for managing cell-by-cell demodulation timings of a user equipment in an asynchronous mobile telecommunication system

#206
20060062196
2006-03-23

Fast cell search and accurate synchronization in wireless communications

#207
20060056552
2006-03-16

High performance W-CDMA slot synchronisation for initial cell search with reduced hardware

#208
20060018371
2006-01-26

Apparatus and method for sub-chip offset correlation in spread-spectrum communication systems

#209
20060002485
2006-01-05

Systems and methods for rapid signal detection and identification

#210
20050272425
2005-12-08

Maintaining and searching sets of cells in a wireless communication system

#211
20050238087
2005-10-27

Multiple simultaneous frequency and code acquisition for a code division multiple access (CDMA) communication system

#212
20050232215
2005-10-20

Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced

#213
20050232195
2005-10-20

Method and arrangement for mitigation of intercell interference in a cellular communication system

#214
20050227725
2005-10-13

Method and apparatus for channel estimation and cell search in cellular communication systems, and corresponding computer program product

#215
20050221848
2005-10-06

Apparatus and method for performing initial cell search in wireless communication systems

#216
20050201338
2005-09-15

Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced

#217
20050195926
2005-09-08

Device and method for carrying out correlations in a mobile radio system

#218
20050169216
2005-08-04

Channelization code determination by a user equipment

#219
20050169198
2005-08-04

Base station midamble selection

#220
20050163266
2005-07-28

Start-up automatic frequency control (AFC) method and apparatus

#221
20050153721
2005-07-14

Frame synchronization for a mobile communication system

#222
20050147157
2005-07-07

Method for WCDMA frame synchronization and related device

#223
20050117679
2005-06-02

Method and apparatus for synchronization of a mobile radio receiver to a base station

#224
20050117547
2005-06-02

Methods for synchronizing in a wide band code division multiple access communication system

#225
20050063316
2005-03-24

Method and apparatus for fast W-CDMA acquisition

#226
20050047492
2005-03-03

Reducing search time using known scrambling code offsets

#227
20050037719
2005-02-17

Information notification method, mobile communications system, base station, and mobile station

#228
20050018646
2005-01-27

Multistage PN code acquisition circuit and method

#229
20050002446
2005-01-06

Method and apparatus for frequency-robust detection of a wideband code division multiple access secondary synchronization channel

#230
20050002376
2005-01-06

Process and device for the cell search procedure in cellular communication systems, computer program product therefor

#231
19023784
2025-06-17

Designed method for satellite navigation signal system with mixed modulation of direct spread spectrum and frequency hopping

#232
16579380
2020-12-08

Spread spectrum signature reduction

#233
15717848
2018-08-21

Generator of communications binary code shift key (CSK) codes in memory usable for time-synchronous retrievals by signal processing systems to extract 1 of 16 orthogonal CSK symbol codes per CSK code to transport 4-bits of data over wireless communications systems

#234
14831083
2017-01-17

Timing estimation in communication systems

#235
14683455
2016-03-29

Start of frame delimiter in a communication packet

#236
14606386
2015-11-03

Time-frequency decoding unit

#237
12891609
2015-06-16

Referenced-based radio frequency feature estimation