DE60032206D1 - CDMA-Basisbandempfänger zum Herstellen der Synchronisation mit Aussenfeststationen - Google Patents

CDMA-Basisbandempfänger zum Herstellen der Synchronisation mit Aussenfeststationen

Info

Publication number
DE60032206D1
DE60032206D1 DE60032206T DE60032206T DE60032206D1 DE 60032206 D1 DE60032206 D1 DE 60032206D1 DE 60032206 T DE60032206 T DE 60032206T DE 60032206 T DE60032206 T DE 60032206T DE 60032206 D1 DE60032206 D1 DE 60032206D1
Authority
DE
Germany
Prior art keywords
base stations
external base
establishing synchronization
baseband receiver
cdma baseband
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60032206T
Other languages
English (en)
Other versions
DE60032206T2 (de
Inventor
Takeshi Hashimoto
Yuichi Maruyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Electronics Corp
Original Assignee
NEC Electronics Corp
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
Application filed by NEC Electronics Corp filed Critical NEC Electronics Corp
Publication of DE60032206D1 publication Critical patent/DE60032206D1/de
Application granted granted Critical
Publication of DE60032206T2 publication Critical patent/DE60032206T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/709—Correlator structure
    • 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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
    • 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
    • H04B1/70756—Jumping within the code, i.e. masking or slewing
    • 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
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE2000632206 1999-10-14 2000-10-13 CDMA-Basisbandempfänger zum Herstellen der Synchronisation mit Aussenbasisstationen Expired - Lifetime DE60032206T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29300899A JP3439399B2 (ja) 1999-10-14 1999-10-14 Ｃｄｍａベースバンド受信装置
JP29300899 1999-10-14

Publications (2)

Publication Number Publication Date
DE60032206D1 true DE60032206D1 (de) 2007-01-18
DE60032206T2 DE60032206T2 (de) 2007-10-11

Family

ID=17789294

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000632206 Expired - Lifetime DE60032206T2 (de) 1999-10-14 2000-10-13 CDMA-Basisbandempfänger zum Herstellen der Synchronisation mit Aussenbasisstationen

Country Status (7)

Country Link
US (1) US6954485B1 (de)
EP (1) EP1093236B1 (de)
JP (1) JP3439399B2 (de)
KR (1) KR100381877B1 (de)
CN (1) CN100417053C (de)
CA (1) CA2323184A1 (de)
DE (1) DE60032206T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1605610B1 (de) 2000-04-07 2014-03-26 InterDigital Technology Corporation Verfahren zur Synchronisierung einer Basisstation für drahtlose Kommunikationssysteme
JP4368514B2 (ja) * 2000-10-30 2009-11-18 三菱電機株式会社 セルサーチ制御装置およびセルサーチ制御方法
KR100530782B1 (ko) 2000-11-06 2005-11-23 가부시키가이샤 엔.티.티.도코모 쇼트 코드 및 롱 코드를 사용하는 멀티캐리어 ｃｄｍａ방식의 이동 통신 시스템
US6826244B2 (en) * 2001-02-27 2004-11-30 Interdigital Technology Corporation Initial cell search algorithm for 3G FDD wireless communication systems
JP3843040B2 (ja) * 2001-09-26 2006-11-08 松下電器産業株式会社 セルサーチ方法及び通信端末装置
JP3590043B2 (ja) * 2003-01-15 2004-11-17 松下電器産業株式会社 同期捕捉装置及び同期捕捉方法
EP1727293B1 (de) 2004-03-16 2011-07-06 NEC Corporation Zellensuchverfahren für ein funkkommunikationssystem
GB2449376B (en) * 2006-03-01 2010-09-29 Nec Corp Mobile communication system, its scramble code assigning method, mobile station, and base station
US8599903B2 (en) * 2010-08-27 2013-12-03 Collision Communications, Inc. QR-RLS adaptive digital filter with 18-bit pipeline architecture
JP5685888B2 (ja) * 2010-10-25 2015-03-18 セイコーエプソン株式会社 受信信号信頼度判定方法、コード位相誤差算出方法及び受信信号信頼度判定装置
JP2015531553A (ja) * 2012-09-10 2015-11-02 日本電気株式会社 無線通信システム及び無線通信システムにおける実装方法
KR101625217B1 (ko) * 2014-12-30 2016-06-07 한국해양과학기술원 수중통신을 위한 도플러 편이 추정 장치 및 방법
CN111510239B (zh) * 2020-04-10 2022-06-03 北京银河信通科技有限公司 一种基于北斗短报文体制的扩频码在线生成与切换方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111478A (en) * 1991-01-31 1992-05-05 Motorola, Inc. Method and apparatus for providing signal synchronization in a spread spectrum communication system
CA2217575C (en) * 1996-03-05 2005-07-12 Ntt Mobile Communications Network Inc. Signal transmission method, transmitter, receiver, and spreading code sychronizing method in mobile communication system
JPH09307951A (ja) * 1996-03-15 1997-11-28 Matsushita Electric Ind Co Ltd スペクトル拡散通信装置
JP3747390B2 (ja) 1996-10-18 2006-02-22 富士通株式会社 Ｃｄｍａ通信システム及び移動局及び通信制御方法
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
JPH11127134A (ja) 1997-10-23 1999-05-11 Takatori Ikueikai:Kk Ｄｓ−ｃｄｍａセルラ方式における信号受信装置
EP1447918B1 (de) * 1997-07-17 2008-02-27 Matsushita Electric Industrial Co., Ltd. Synchronisationsverfahren in einem Kodemultiplexvielfachzugriffsystem
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
JP3701447B2 (ja) 1997-10-14 2005-09-28 株式会社日立国際電気 初期同期捕捉回路
JP3385200B2 (ja) 1997-11-07 2003-03-10 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける信号の伝送方法および拡散符号同期法
JP3897427B2 (ja) * 1997-12-01 2007-03-22 松下電器産業株式会社 基地局装置、移動局装置、移動体通信システム、無線送信方法及び無線受信方法
JP3856261B2 (ja) 1998-03-18 2006-12-13 ソニー株式会社 同期検出装置
KR100273644B1 (ko) * 1998-07-11 2000-12-15 윤종용 비동기 방식의 부호분할다중접속 통신시스템의 기지국 채널통신장치 및 방법
JP2000174662A (ja) * 1998-12-09 2000-06-23 Denso Corp Ｄｓ−ｃｄｍａ基地局間非同期システムにおける移動局の同期捕捉方法及び装置
US6625200B1 (en) * 1999-01-25 2003-09-23 Ericsson Inc. Multi-stage CDMA synchronization with parallel execution
CA2334898C (en) * 1999-04-29 2007-06-05 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing channels in a w-cdma communication system
JP2001086034A (ja) 1999-09-14 2001-03-30 Nec Corp とまり木チャネル検出回路における拡散コード検出方法およびその回路

Also Published As

Publication number Publication date
CN1293499A (zh) 2001-05-02
JP2001119321A (ja) 2001-04-27
EP1093236A3 (de) 2004-01-02
EP1093236B1 (de) 2006-12-06
CA2323184A1 (en) 2001-04-14
DE60032206T2 (de) 2007-10-11
US6954485B1 (en) 2005-10-11
KR100381877B1 (ko) 2003-04-26
KR20010051003A (ko) 2001-06-25
JP3439399B2 (ja) 2003-08-25
EP1093236A2 (de) 2001-04-18
CN100417053C (zh) 2008-09-03

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: HASHIMOTO, TAKESHI, KAWASAKI-SHI, KANAGAWA, JP

Inventor name: MARUYAMA, YUICHI, KAWASAKI-SHI, KANAGAWA, JP

8364 No opposition during term of opposition
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