WO2008087820A1 - 無線機 - Google Patents

無線機 Download PDF

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Publication number
WO2008087820A1
WO2008087820A1 PCT/JP2007/074140 JP2007074140W WO2008087820A1 WO 2008087820 A1 WO2008087820 A1 WO 2008087820A1 JP 2007074140 W JP2007074140 W JP 2007074140W WO 2008087820 A1 WO2008087820 A1 WO 2008087820A1
Authority
WO
WIPO (PCT)
Prior art keywords
period
correlation peak
detecting unit
frequency
detected
Prior art date
Application number
PCT/JP2007/074140
Other languages
English (en)
French (fr)
Inventor
Kaoru Kobayashi
Shigeru Takegishi
Original Assignee
Nihon Dempa Kogyo 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 Nihon Dempa Kogyo Co., Ltd. filed Critical Nihon Dempa Kogyo Co., Ltd.
Priority to EP20070850644 priority Critical patent/EP2124349B1/en
Publication of WO2008087820A1 publication Critical patent/WO2008087820A1/ja
Priority to US12/458,678 priority patent/US20090279646A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transceivers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

　受信部における間欠受信において相関ピーク検出を適正かつ効率的に行うことができる無線機を提供する。 　制御部２５が、相関ピーク検出部２２においてデフォルトの周波数で相関ピークを検出する第１の区間で相関ピークが検出されない場合に、第１の区間における粗周波数ズレ検出部２３の検出区間で第１の周波数が検出されると、第１の区間に続く第２の区間で相関ピーク検出部２２において第１の周波数で相関ピークの検出を行わせ、相関ピーク検出部２２で相関ピークが検出された場合に、微周波数ズレ検出部２４の検出区間で第２の周波数が検出されると、第２の区間に続く第３の区間で相関ピーク検出部２２において第１の周波数と第２の周波数で相関ピークの検出を行わせる無線機である。
PCT/JP2007/074140 2007-01-19 2007-12-14 無線機 WO2008087820A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20070850644 EP2124349B1 (en) 2007-01-19 2007-12-14 Wireless communication device
US12/458,678 US20090279646A1 (en) 2007-01-19 2009-07-20 Wireless communication device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-010655 2007-01-19
JP2007010655A JP4215169B2 (ja) 2007-01-19 2007-01-19 無線機

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/458,678 Continuation US20090279646A1 (en) 2007-01-19 2009-07-20 Wireless communication device

Publications (1)

Publication Number Publication Date
WO2008087820A1 true WO2008087820A1 (ja) 2008-07-24

Family

ID=39635825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074140 WO2008087820A1 (ja) 2007-01-19 2007-12-14 無線機

Country Status (4)

Country Link
US (1) US20090279646A1 (ja)
EP (1) EP2124349B1 (ja)
JP (1) JP4215169B2 (ja)
WO (1) WO2008087820A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4224105B2 (ja) * 2007-01-19 2009-02-12 日本電波工業株式会社 信号処理部及び無線機
US8687537B2 (en) 2008-07-08 2014-04-01 Sharp Kabushiki Kaisha Communication system, reception device, and communication method
US8531980B2 (en) * 2010-06-29 2013-09-10 Intel Corporation Multi-channel communication station for communicating a multi-channel PPDU and methods of reducing collisions on secondary channels in multi-channel wireless networks
US9131512B2 (en) * 2012-10-26 2015-09-08 Intel Corporation Methods and arrangements to mitigate collisions in wireless networks by enabling coexistence of disparate bandwidths

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07336342A (ja) * 1994-06-13 1995-12-22 Fujitsu Ltd クロック再生回路
JPH11331133A (ja) * 1998-01-28 1999-11-30 Hitachi Denshi Ltd 双方向ディジタル伝送方法及びその装置
US20030031275A1 (en) 2001-06-08 2003-02-13 Min Jonathan S. Robust burst detection and acquisition system and method
JP2006246059A (ja) 2005-03-03 2006-09-14 Nippon Dempa Kogyo Co Ltd 微弱電力によるスペクトル拡散通信方法及びシステム、高周波無線機
JP2006261985A (ja) * 2005-03-16 2006-09-28 Mitsubishi Electric Corp スペクトル拡散通信用受信機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393068B1 (en) * 1998-09-22 2002-05-21 Agere Systems Guardian Corp. Communication channel and frequency offset estimator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07336342A (ja) * 1994-06-13 1995-12-22 Fujitsu Ltd クロック再生回路
JPH11331133A (ja) * 1998-01-28 1999-11-30 Hitachi Denshi Ltd 双方向ディジタル伝送方法及びその装置
US20030031275A1 (en) 2001-06-08 2003-02-13 Min Jonathan S. Robust burst detection and acquisition system and method
JP2006246059A (ja) 2005-03-03 2006-09-14 Nippon Dempa Kogyo Co Ltd 微弱電力によるスペクトル拡散通信方法及びシステム、高周波無線機
JP2006261985A (ja) * 2005-03-16 2006-09-28 Mitsubishi Electric Corp スペクトル拡散通信用受信機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DAVID AKOPIAN ET AL.: "Fast DS-SS Acquisition Implementation for High Sensitivity Receivers", WIRELESS TELECOMMUNICATIONS SYMPOSIUM, 2006, pages 1 - 7, XP031064228
See also references of EP2124349A4 *

Also Published As

Publication number Publication date
JP2008177946A (ja) 2008-07-31
JP4215169B2 (ja) 2009-01-28
EP2124349A1 (en) 2009-11-25
EP2124349A4 (en) 2011-06-15
EP2124349B1 (en) 2013-01-23
US20090279646A1 (en) 2009-11-12

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