DE69636424D1 - Direktsequenz-Kodemultiplexvielfachzugriffsempfänger und Verfahren zur Synchronisierung dafür - Google Patents

Direktsequenz-Kodemultiplexvielfachzugriffsempfänger und Verfahren zur Synchronisierung dafür

Info

Publication number
DE69636424D1
DE69636424D1 DE69636424T DE69636424T DE69636424D1 DE 69636424 D1 DE69636424 D1 DE 69636424D1 DE 69636424 T DE69636424 T DE 69636424T DE 69636424 T DE69636424 T DE 69636424T DE 69636424 D1 DE69636424 D1 DE 69636424D1
Authority
DE
Germany
Prior art keywords
therefor
synchronization
multiple access
division multiple
code division
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
DE69636424T
Other languages
English (en)
Other versions
DE69636424T2 (de
DE69636424T8 (de
Inventor
Mamoru Sawahashi
Akihiro Higashi
Kenichi Higuchi
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
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 NTT Docomo Inc filed Critical NTT Docomo Inc
Application granted granted Critical
Publication of DE69636424D1 publication Critical patent/DE69636424D1/de
Publication of DE69636424T2 publication Critical patent/DE69636424T2/de
Publication of DE69636424T8 publication Critical patent/DE69636424T8/de
Active 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
    • H04B1/7073—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
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69636424T 1995-06-13 1996-06-12 Direktsequenz-Kodemultiplexvielfachzugriffsempfänger und Verfahren zur Synchronisierung dafür Active DE69636424T8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14619095 1995-06-13
JP14619095 1995-06-13

Publications (3)

Publication Number Publication Date
DE69636424D1 true DE69636424D1 (de) 2006-09-14
DE69636424T2 DE69636424T2 (de) 2007-07-19
DE69636424T8 DE69636424T8 (de) 2007-12-06

Family

ID=15402177

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69636424T Active DE69636424T8 (de) 1995-06-13 1996-06-12 Direktsequenz-Kodemultiplexvielfachzugriffsempfänger und Verfahren zur Synchronisierung dafür
DE69632566T Expired - Lifetime DE69632566T2 (de) 1995-06-13 1996-06-12 Verfahren und vorrichtung zur synchronisierung eines spreizcodes

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69632566T Expired - Lifetime DE69632566T2 (de) 1995-06-13 1996-06-12 Verfahren und vorrichtung zur synchronisierung eines spreizcodes

Country Status (7)

Country Link
US (1) US5940433A (de)
EP (2) EP0776106B1 (de)
KR (1) KR100212307B1 (de)
CN (1) CN1131616C (de)
CA (1) CA2197341C (de)
DE (2) DE69636424T8 (de)
WO (1) WO1996042147A1 (de)

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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
US5991330A (en) * 1997-06-27 1999-11-23 Telefonaktiebolaget L M Ericsson (Pub1) Mobile Station synchronization within a spread spectrum communication systems
KR100268677B1 (ko) * 1998-04-04 2000-10-16 윤종용 코드 분할 다중 접속 통신 시스템에서 확산 코드의 위상 획득 방법과 그 장치
JP3031341B2 (ja) * 1998-07-28 2000-04-10 日本電気株式会社 ランダムアクセスチャネル用受信装置
JP3251242B2 (ja) * 1998-09-16 2002-01-28 沖電気工業株式会社 拡散符号同期回路及び拡散符号同期方法
US7110473B2 (en) 1998-12-11 2006-09-19 Freescale Semiconductor, Inc. Mode controller for signal acquisition and tracking in an ultra wideband communication system
US7346120B2 (en) 1998-12-11 2008-03-18 Freescale Semiconductor Inc. Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions
JP3930187B2 (ja) * 1999-03-03 2007-06-13 株式会社日立コミュニケーションテクノロジー 同期制御方法、受信機、基地局及び移動端末
US6721299B1 (en) * 1999-03-15 2004-04-13 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US6987746B1 (en) * 1999-03-15 2006-01-17 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
KR100294711B1 (ko) * 1999-03-15 2001-07-12 서평원 최적의 파일럿 심볼을 이용한 프레임 동기 방법
US7643540B2 (en) * 1999-03-15 2010-01-05 Lg Electronics Inc. Pilot signals for synchronization and/or channel estimation
US7496132B2 (en) * 1999-03-15 2009-02-24 Kg Electronics Inc. Pilot signals for synchronization and/or channel estimation
US6791960B1 (en) 1999-03-15 2004-09-14 Lg Information And Communications, Ltd. Pilot signals for synchronization and/or channel estimation
US6804264B1 (en) * 1999-03-15 2004-10-12 Lg Information & Communications, Ltd. Pilot signals for synchronization and/or channel estimation
FR2791495B1 (fr) * 1999-03-26 2001-05-04 France Telecom Procede de synchronisation de rythme d'un signal numerique
JP3438681B2 (ja) * 1999-11-18 2003-08-18 日本電気株式会社 Ｄｓ−ｃｄｍａ基地局間非同期セルラにおける初期同期方法
DE10003734A1 (de) * 2000-01-28 2001-08-02 Bosch Gmbh Robert Detektionsverfahren und -vorrichtung
KR100720542B1 (ko) 2000-02-17 2007-05-22 엘지전자 주식회사 이동 통신 단말에서 프레임 동기의 성공 여부를 검출하는 방법
JP4590113B2 (ja) * 2000-03-14 2010-12-01 キヤノン株式会社 スペクトラム拡散通信システムのための受信装置
JP3839636B2 (ja) * 2000-03-28 2006-11-01 パイオニア株式会社 受信装置
JP4505981B2 (ja) * 2000-10-24 2010-07-21 ソニー株式会社 スペクトル拡散受信機
US6909736B2 (en) * 2000-12-14 2005-06-21 Nokia Corporation System for method for fine acquisition of a spread spectrum signal
EP1415406A1 (de) * 2001-08-10 2004-05-06 Freescale Semiconductor, Inc. Funktionsteuereinrichtung zur signalerfassung und -nachführung in einem ultrabreitbandnachrichtenübertragungssystem
JP4082460B2 (ja) * 2005-06-22 2008-04-30 独立行政法人海洋研究開発機構 フレーム同期装置及びフレーム同期方法
JP4812478B2 (ja) * 2006-03-20 2011-11-09 株式会社エヌ・ティ・ティ・ドコモ 符号評価装置、符号評価方法、無線通信システム、基地局および移動局
US8295250B2 (en) * 2006-07-24 2012-10-23 Qualcomm Incorporated Code interleaving for a structured code
US9509366B2 (en) * 2007-04-04 2016-11-29 Via Technologies, Inc. Interference estimation circuit and method
WO2009020148A1 (ja) * 2007-08-06 2009-02-12 Sharp Kabushiki Kaisha 受信機及び受信方法
KR20090040516A (ko) * 2007-10-22 2009-04-27 삼성전자주식회사 광대역 무선통신 시스템에서 레인징 채널의 간섭 및 잡음전력 추정 장치 및 방법
US8300675B2 (en) * 2009-05-13 2012-10-30 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Spreading code acquisition for direct sequence spread spectrum signals
JP5943278B2 (ja) * 2012-05-11 2016-07-05 国立研究開発法人情報通信研究機構 受信信号判定装置及び方法
JP6832794B2 (ja) * 2017-06-05 2021-02-24 ルネサスエレクトロニクス株式会社 無線通信システム
CN112910497B (zh) * 2021-01-18 2022-01-25 清华大学 一种针对短扩频比卫星通信系统的快速码捕获方法
KR102501049B1 (ko) 2021-12-20 2023-02-20 김학용 전복 양식 쉘터용 친환경 패널 및 그 친환경 쉘터와 이를 이용한 전복양식설비

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US4168398A (en) * 1976-11-10 1979-09-18 Nippon Electric Co., Ltd. Initial acquisition signal detection system for TDMA satellite communication
JPH0771021B2 (ja) * 1989-12-21 1995-07-31 日本電気株式会社 同期回路
US5177765A (en) * 1991-06-03 1993-01-05 Spectralink Corporation Direct-sequence spread-spectrum digital signal acquisition and tracking system and method therefor
JPH0514312A (ja) * 1991-07-02 1993-01-22 Fujitsu Ltd 無線通信方法
JP2721474B2 (ja) * 1992-06-29 1998-03-04 三菱電機株式会社 スペクトル拡散通信用受信装置
CA2151737C (en) * 1993-10-14 1999-09-28 Tomohiro Dohi Correlation detector and communication apparatus
KR970005598B1 (ko) * 1994-06-29 1997-04-18 삼성전자 주식회사 대역확산통신방식의 비동기 디지탈 수신장치
JP2895399B2 (ja) * 1994-07-20 1999-05-24 沖電気工業株式会社 同期追従方法
JPH08102698A (ja) * 1994-09-30 1996-04-16 Clarion Co Ltd スライディング相関器
JP3444001B2 (ja) * 1995-02-10 2003-09-08 ソニー株式会社 符号検出回路

Also Published As

Publication number Publication date
EP0776106A1 (de) 1997-05-28
EP0776106A4 (de) 2000-06-28
DE69632566T2 (de) 2004-11-11
EP1404032A3 (de) 2004-04-07
CA2197341A1 (en) 1996-12-27
CN1161118A (zh) 1997-10-01
DE69636424T2 (de) 2007-07-19
WO1996042147A1 (fr) 1996-12-27
EP0776106B1 (de) 2004-05-26
DE69632566D1 (de) 2004-07-01
EP1404032B1 (de) 2006-08-02
EP1404032A2 (de) 2004-03-31
DE69636424T8 (de) 2007-12-06
US5940433A (en) 1999-08-17
CA2197341C (en) 2007-03-27
KR100212307B1 (ko) 1999-08-02
CN1131616C (zh) 2003-12-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8381 Inventor (new situation)

Inventor name: SAWAHASHI, MAMORU, TOKYO, JP

Inventor name: HIGASHI, AKIHIRO, TOKYO, JP

Inventor name: HIGUCHI, KENICHI, TOKYO, JP