DE60002247D1 - Synchronisationskontrolle eines Spreizspektrum Empfängers in einer Mobilstation, Basisstation und entsprechendes Verfahren - Google Patents

Synchronisationskontrolle eines Spreizspektrum Empfängers in einer Mobilstation, Basisstation und entsprechendes Verfahren

Info

Publication number
DE60002247D1
DE60002247D1 DE60002247T DE60002247T DE60002247D1 DE 60002247 D1 DE60002247 D1 DE 60002247D1 DE 60002247 T DE60002247 T DE 60002247T DE 60002247 T DE60002247 T DE 60002247T DE 60002247 D1 DE60002247 D1 DE 60002247D1
Authority
DE
Germany
Prior art keywords
spread spectrum
synchronization control
corresponding method
base station
spectrum receiver
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
DE60002247T
Other languages
English (en)
Other versions
DE60002247T2 (de
Inventor
Takashi Yano
Takaki Uta
Nobukazu Doi
Toshiro Suzuki
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.)
Hitachi Ltd
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE60002247D1 publication Critical patent/DE60002247D1/de
Application granted granted Critical
Publication of DE60002247T2 publication Critical patent/DE60002247T2/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
    • H04B1/7097—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
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • 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
    • H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
    • 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
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • 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
    • H04B1/7113—Determination of path profile
DE2000602247 1999-03-03 2000-02-11 Synchronisationskontrolle eines Spreizspektrum Empfängers in einer Mobilstation, Basisstation und entsprechendes Verfahren Expired - Lifetime DE60002247T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5542499A JP3930187B2 (ja) 1999-03-03 1999-03-03 同期制御方法、受信機、基地局及び移動端末
JP5542499 1999-03-03

Publications (2)

Publication Number Publication Date
DE60002247D1 true DE60002247D1 (de) 2003-05-28
DE60002247T2 DE60002247T2 (de) 2004-02-19

Family

ID=12998208

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000602247 Expired - Lifetime DE60002247T2 (de) 1999-03-03 2000-02-11 Synchronisationskontrolle eines Spreizspektrum Empfängers in einer Mobilstation, Basisstation und entsprechendes Verfahren

Country Status (6)

Country Link
US (2) US6754255B1 (de)
EP (1) EP1033823B1 (de)
JP (1) JP3930187B2 (de)
KR (1) KR100361794B1 (de)
CN (2) CN1516379A (de)
DE (1) DE60002247T2 (de)

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JP4515618B2 (ja) * 2000-10-31 2010-08-04 株式会社東芝 移動通信端末
FR2819126B1 (fr) * 2000-12-29 2003-03-21 Commissariat Energie Atomique Circuit numerique d'emission/reception dans un systeme cdma
US7376175B2 (en) * 2001-03-14 2008-05-20 Mercury Computer Systems, Inc. Wireless communications systems and methods for cache enabled multiple processor based multiple user detection
US7177344B2 (en) * 2001-03-14 2007-02-13 Mercury Computer Systems, Inc. Wireless communication systems and methods for long-code communications for regenerative multiple user detection involving implicit waveform subtraction
DE10122692A1 (de) * 2001-05-10 2002-11-28 Siemens Ag Verfahren und System zum Regeln der Frequenz eines RAKE-Empfängers
US7012952B2 (en) * 2001-08-01 2006-03-14 Qualcomm Incorporated Method and apparatus for adjusting delay in systems with time-burst pilot and fractionally spaced equalizers
US7356098B2 (en) 2001-11-14 2008-04-08 Ipwireless, Inc. Method, communication system and communication unit for synchronisation for multi-rate communication
US7263349B2 (en) * 2002-03-12 2007-08-28 Qualcomm Incorporated Velocity responsive time tracking
DE60321565D1 (de) * 2002-05-22 2008-07-24 Matsushita Electric Ind Co Ltd Empfangseinrichtung und verfahren zum erkennen eines hauptweges in einem verzögerungsprofil
JP3637333B2 (ja) * 2002-07-05 2005-04-13 株式会社東芝 スペクトラム拡散通信装置およびその制御方法
AU2003264095A1 (en) 2002-09-13 2004-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Method for path-seacher scheduling
EP1398884A1 (de) * 2002-09-13 2004-03-17 Telefonaktiebolaget L M Ericsson (Publ) Ablaufsteurungsverfahren für Wegsucher
US7142586B2 (en) 2002-09-18 2006-11-28 Telefonaktiebolaget Lm Ericsson (Publ) Robust delay estimation architecture
JP4165238B2 (ja) * 2003-01-29 2008-10-15 日本電気株式会社 パスサーチ回路及びその方法ならびにプログラム
US7194279B2 (en) * 2003-05-23 2007-03-20 Nokia Corporation Adjustment of a phase difference between two signals
WO2005004414A2 (en) * 2003-07-09 2005-01-13 Nortel Networks Limited Method for updating and managing synchronization identifier by using release messages or status request and response
JP4183706B2 (ja) 2003-07-29 2008-11-19 富士通株式会社 Ｏｆｄｍシステムにおけるパイロット多重方法及び送受信装置
EP1511185B1 (de) 2003-08-26 2009-12-09 Telefonaktiebolaget LM Ericsson (publ) Positionierung eines Pfadsucherfensters in einem CDMA-Empfänger
US20060061469A1 (en) * 2004-09-21 2006-03-23 Skyfence Inc. Positioning system that uses signals from a point source
US8406251B2 (en) * 2004-10-06 2013-03-26 Broadcom Corporation Method and system for processing multipath clusters
US7453855B1 (en) * 2005-12-08 2008-11-18 Meru Networks Multiuser detection and interference suppression techniques for direct sequence spread spectrum systems in which all users employ same spreading code
KR100932626B1 (ko) * 2007-12-13 2009-12-17 한국전자통신연구원 직접 시퀀스 확산 스펙트럼 방식의 혼성 역확산 장치
JP5483735B2 (ja) * 2008-10-28 2014-05-07 古野電気株式会社 衛星航法装置
CN102932904B (zh) * 2011-08-09 2017-04-12 中兴通讯股份有限公司 一种实现基站和终端同步的方法、系统、终端及装置
US20140036332A1 (en) * 2012-08-01 2014-02-06 Digital Signal Corporation System and Method for Positioning a Mirror in a Lidar System Using Open Loop and Closed Loop Control
CN106814601B (zh) * 2017-03-24 2019-06-04 厦门九华通信设备厂 一种特定信号的随机噪声滤波方法
US20180357465A1 (en) * 2017-06-07 2018-12-13 Honeywell International Inc. System and method for automatic logging of events in industrial process control and automation system using change point analysis

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JP3160517B2 (ja) * 1995-12-30 2001-04-25 松下電器産業株式会社 同期装置
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Also Published As

Publication number Publication date
KR100361794B1 (ko) 2002-11-22
JP2000252962A (ja) 2000-09-14
JP3930187B2 (ja) 2007-06-13
KR20000071310A (ko) 2000-11-25
CN1516379A (zh) 2004-07-28
US6754255B1 (en) 2004-06-22
EP1033823B1 (de) 2003-04-23
DE60002247T2 (de) 2004-02-19
US20040213329A1 (en) 2004-10-28
CN1266343A (zh) 2000-09-13
CN1150783C (zh) 2004-05-19
EP1033823A1 (de) 2000-09-06
US7061968B2 (en) 2006-06-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI COMMUNICATION TECHNOLOGIES, LTD., TOKI, JP

8327 Change in the person/name/address of the patent owner

Owner name: HITACHI, LTD., TOKYO, JP