DE69534524D1 - Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem - Google Patents

Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem

Info

Publication number
DE69534524D1
DE69534524D1 DE69534524T DE69534524T DE69534524D1 DE 69534524 D1 DE69534524 D1 DE 69534524D1 DE 69534524 T DE69534524 T DE 69534524T DE 69534524 T DE69534524 T DE 69534524T DE 69534524 D1 DE69534524 D1 DE 69534524D1
Authority
DE
Germany
Prior art keywords
synchronization
communication system
spread spectrum
spectrum communication
direct sequence
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
DE69534524T
Other languages
English (en)
Other versions
DE69534524T2 (de
Inventor
Kazuyuki Miya
Roland Go
Hiroyuki Kanaya
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69534524D1 publication Critical patent/DE69534524D1/de
Application granted granted Critical
Publication of DE69534524T2 publication Critical patent/DE69534524T2/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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70757—Synchronisation aspects with code phase acquisition with increased resolution, i.e. higher than half a chip
DE1995634524 1994-08-22 1995-08-16 Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem Expired - Lifetime DE69534524T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP19678094 1994-08-22
JP19678094 1994-08-22
JP13494595A JP3142222B2 (ja) 1994-08-22 1995-06-01 スペクトル拡散通信同期方法とその回路装置
JP13494595 1995-06-01

Publications (2)

Publication Number Publication Date
DE69534524D1 true DE69534524D1 (de) 2005-11-24
DE69534524T2 DE69534524T2 (de) 2006-05-18

Family

ID=26468925

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995634524 Expired - Lifetime DE69534524T2 (de) 1994-08-22 1995-08-16 Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem

Country Status (4)

Country Link
US (2) US5757870A (de)
EP (1) EP0701333B1 (de)
JP (1) JP3142222B2 (de)
DE (1) DE69534524T2 (de)

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JP2944492B2 (ja) * 1995-11-10 1999-09-06 国際電気株式会社 マッチドフィルタ装置
JPH09261128A (ja) * 1996-03-22 1997-10-03 Matsushita Electric Ind Co Ltd スペクトル拡散通信機
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
JP2856249B2 (ja) 1997-06-24 1999-02-10 日本電気株式会社 Ｃｄｍａ同期捕捉回路
DE19836888A1 (de) * 1998-08-14 2000-02-24 Krone Ag Verfahren und Vorrichtung für ein voll duplexfähigesFunkübertragungssystem mit CDMA-Zugriff
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
JP3031350B2 (ja) * 1998-09-14 2000-04-10 日本電気株式会社 スペクトラム拡散復調装置および方法
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6421371B1 (en) 1998-11-17 2002-07-16 Ericsson Inc. Modulation sequence synchronization methods and apparatus employing partial sequence correlation
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
JP4255601B2 (ja) * 2000-06-14 2009-04-15 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移動局の同期確立方法
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
JP4500433B2 (ja) * 2000-11-28 2010-07-14 クラリオン株式会社 スペクトル拡散通信機
JP2002208879A (ja) * 2001-01-05 2002-07-26 Nec Microsystems Ltd 同期タイミング補正回路および方法
JP3719175B2 (ja) 2001-08-22 2005-11-24 日本電気株式会社 同期追跡回路
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7394877B2 (en) * 2001-12-20 2008-07-01 Texas Instruments Incorporated Low-power packet detection using decimated correlation
JP3712382B2 (ja) * 2002-06-07 2005-11-02 Ｎｅｃマイクロシステム株式会社 Ｗ−ｃｄｍａ方式におけるプロファイル作成方法
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
EP1903346A1 (de) 2006-09-21 2008-03-26 Nemerix SA Speicherverringerung in GNSS-Empfängern
US8564411B2 (en) * 2006-12-04 2013-10-22 Michelin Recherche Et Technique Back-door data synchronization for a multiple remote measurement system
JP5094469B2 (ja) * 2007-07-04 2012-12-12 三菱電機株式会社 タイミング再生装置および受信装置
US8462875B2 (en) 2009-07-20 2013-06-11 Mitsubishi Electric Corporation Timing regenerating device
CN102034022B (zh) * 2010-12-03 2012-10-03 深圳市理邦精密仪器股份有限公司 一种基于倍频分析的信号处理方法及系统
JPWO2013114853A1 (ja) * 2012-02-01 2015-05-11 日本電気株式会社 ピーク検出回路及びピーク検出方法
US11714127B2 (en) 2018-06-12 2023-08-01 International Business Machines Corporation On-chip spread spectrum characterization
US11146307B1 (en) * 2020-04-13 2021-10-12 International Business Machines Corporation Detecting distortion in spread spectrum signals
US11693446B2 (en) 2021-10-20 2023-07-04 International Business Machines Corporation On-chip spread spectrum synchronization between spread spectrum sources

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CA2032909C (en) * 1989-12-22 1995-10-10 Kaoru Endo Csk communication system
JPH04124925A (ja) * 1990-09-17 1992-04-24 Futaba Corp 相関器
JPH05327655A (ja) * 1992-05-26 1993-12-10 Japan Aviation Electron Ind Ltd スペクトル拡散信号受信装置の同期捕捉回路
US5311544A (en) * 1992-11-19 1994-05-10 Samsung Electronics Co., Ltd. Receiver of a direct sequence spread spectrum system
JP2689890B2 (ja) * 1993-12-30 1997-12-10 日本電気株式会社 スペクトラム拡散受信機
US5648982A (en) * 1994-09-09 1997-07-15 Omnipoint Corporation Spread spectrum transmitter

Also Published As

Publication number Publication date
EP0701333B1 (de) 2005-10-19
JP3142222B2 (ja) 2001-03-07
EP0701333A3 (de) 1999-11-24
JPH08116293A (ja) 1996-05-07
US5757870A (en) 1998-05-26
EP0701333A2 (de) 1996-03-13
US5818869A (en) 1998-10-06
DE69534524T2 (de) 2006-05-18

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Legal Events

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

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP