SG89274A1 - Code division multiple access mobile communication system - Google Patents

Code division multiple access mobile communication system

Info

Publication number
SG89274A1
SG89274A1 SG9901022A SG1999001022A SG89274A1 SG 89274 A1 SG89274 A1 SG 89274A1 SG 9901022 A SG9901022 A SG 9901022A SG 1999001022 A SG1999001022 A SG 1999001022A SG 89274 A1 SG89274 A1 SG 89274A1
Authority
SG
Singapore
Prior art keywords
communication system
mobile communication
multiple access
division multiple
code division
Prior art date
Application number
SG9901022A
Other languages
English (en)
Inventor
Suzuki May
Doi Nobukazu
Yano Takashi
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15023553&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SG89274(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of SG89274A1 publication Critical patent/SG89274A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7083—Cell search, e.g. using a three-step approach
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2668—Arrangements for Wireless Code-Division Multiple Access [CDMA] System Synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
SG9901022A 1998-05-13 1999-02-24 Code division multiple access mobile communication system SG89274A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10129995A JPH11331036A (ja) 1998-05-13 1998-05-13 符号分割接続方式移動通信システム及び該システムで用いるスロットタイミング同定方法と移動端末

Publications (1)

Publication Number Publication Date
SG89274A1 true SG89274A1 (en) 2002-06-18

Family

ID=15023553

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9901022A SG89274A1 (en) 1998-05-13 1999-02-24 Code division multiple access mobile communication system

Country Status (7)

Country Link
US (1) US6507576B1 (fr)
EP (5) EP0957594B1 (fr)
JP (1) JPH11331036A (fr)
KR (1) KR100291294B1 (fr)
CN (3) CN100367818C (fr)
DE (3) DE69924914C5 (fr)
SG (1) SG89274A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6879575B1 (en) * 1998-05-13 2005-04-12 Hitachi, Ltd. Code division multiple access mobile communication system
JPH11331036A (ja) * 1998-05-13 1999-11-30 Hitachi Ltd 符号分割接続方式移動通信システム及び該システムで用いるスロットタイミング同定方法と移動端末
US7130332B1 (en) * 1999-04-20 2006-10-31 Symmetricom, Inc. Pilot tracking for synchronization using correlation between digital signal and locally generated version of PN signal
EP1188260B1 (fr) * 1999-05-28 2004-07-14 Interdigital Technology Corporation Procedure de recherche en cellule pour systemes duplex a repartition dans le temps utilisant un acces multiple par repartition de code
US6363060B1 (en) * 1999-06-30 2002-03-26 Qualcomm Incorporated Method and apparatus for fast WCDMA acquisition
JP2001086035A (ja) * 1999-09-14 2001-03-30 Nec Corp Ｃｄｍａにおけるセルサーチ方法
GB2360426B (en) * 2000-03-14 2004-06-02 Nec Technologies Method for acquisition of slot timing in a direct sequence spread spectrum communication receiver
AU2002217057A1 (en) * 2000-11-27 2002-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Code synchronization in a mobile communication device
CN100536355C (zh) * 2001-10-10 2009-09-02 三星电子株式会社 移动通信系统中处于间断接收模式的小区搜索方法
CN101080877B (zh) 2004-12-14 2013-12-18 富士通株式会社 扩展码分配方法、逆扩展方法、发送装置、接收装置、通信装置、无线基站装置和移动终端装置
JP4538018B2 (ja) * 2007-04-06 2010-09-08 フィパ フローウィッター インテレクチュアル プロパティ エイジー 移動通信システムのセルサーチ方法
CN101383636B (zh) * 2007-09-05 2012-11-21 电信科学技术研究院 一种资源划分方法及发送上行导频的方法、装置和设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969159A (en) * 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
EP0693834A1 (fr) * 1994-02-09 1996-01-24 Ntt Mobile Communications Network Inc. Procede et systeme relatif aux liaisons radio mobiles cdma

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2644723B2 (ja) 1985-04-26 1997-08-25 株式会社日立製作所 通信装置
US5530716A (en) * 1994-06-30 1996-06-25 Motorola, Inc. Method and apparatus for identifying a coded communication signal
JP3491349B2 (ja) 1994-09-05 2004-01-26 株式会社日立製作所 弾性表面波装置及びそれを用いた通信装置
EP0825737B1 (fr) 1996-03-05 2007-05-02 NTT DoCoMo, Inc. Procede de transmission de signaux, emetteur et recepteur pour un systeme de communication mobile
JP3376224B2 (ja) * 1996-10-23 2003-02-10 株式会社エヌ・ティ・ティ・ドコモ Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機
JP3373746B2 (ja) * 1997-01-07 2003-02-04 株式会社鷹山 Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US6018667A (en) * 1998-01-20 2000-01-25 Motorola, Inc. Method and apparatus for transmitting information regarding the synchronization status of a base station
US6208632B1 (en) * 1998-01-29 2001-03-27 Sharp Laboratories Of America System and method for CDMA channel estimation
JPH11331036A (ja) * 1998-05-13 1999-11-30 Hitachi Ltd 符号分割接続方式移動通信システム及び該システムで用いるスロットタイミング同定方法と移動端末

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969159A (en) * 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
EP0693834A1 (fr) * 1994-02-09 1996-01-24 Ntt Mobile Communications Network Inc. Procede et systeme relatif aux liaisons radio mobiles cdma

Also Published As

Publication number Publication date
CN100367818C (zh) 2008-02-06
DE69938627D1 (de) 2008-06-12
CN1878387B (zh) 2012-12-05
EP1804392B1 (fr) 2012-08-01
EP1473854A3 (fr) 2004-11-10
DE69924914C5 (de) 2024-04-18
US6507576B1 (en) 2003-01-14
KR100291294B1 (ko) 2001-05-15
EP1473854B1 (fr) 2008-04-30
EP2299608B8 (fr) 2019-04-03
EP0957594A2 (fr) 1999-11-17
CN1235501A (zh) 1999-11-17
EP2299608A3 (fr) 2012-03-07
DE69924914T2 (de) 2006-02-16
EP0957594A3 (fr) 2003-01-08
DE69938627T2 (de) 2009-06-10
EP1956724A3 (fr) 2008-11-05
EP2299608A2 (fr) 2011-03-23
EP1956724B1 (fr) 2013-04-17
EP0957594B1 (fr) 2005-04-27
CN1523920A (zh) 2004-08-25
EP1804392A1 (fr) 2007-07-04
EP1956724A2 (fr) 2008-08-13
KR19990087884A (ko) 1999-12-27
JPH11331036A (ja) 1999-11-30
EP2299608B1 (fr) 2019-02-13
EP1473854A2 (fr) 2004-11-03
CN1145399C (zh) 2004-04-07
CN1878387A (zh) 2006-12-13
DE69924914D1 (de) 2005-06-02

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