DE69934691D1 - Verfahren und Schaltung zum CDMA Empfang - Google Patents

Verfahren und Schaltung zum CDMA Empfang

Info

Publication number
DE69934691D1
DE69934691D1 DE69934691T DE69934691T DE69934691D1 DE 69934691 D1 DE69934691 D1 DE 69934691D1 DE 69934691 T DE69934691 T DE 69934691T DE 69934691 T DE69934691 T DE 69934691T DE 69934691 D1 DE69934691 D1 DE 69934691D1
Authority
DE
Germany
Prior art keywords
circuit
cdma reception
cdma
reception
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
DE69934691T
Other languages
English (en)
Other versions
DE69934691T2 (de
Inventor
Tooru Ogino
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.)
NEC Corp
Original Assignee
NEC 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 Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69934691D1 publication Critical patent/DE69934691D1/de
Publication of DE69934691T2 publication Critical patent/DE69934691T2/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
    • H04B1/70754—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
    • H04B1/7097—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
    • 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
DE69934691T 1998-07-03 1999-06-23 Verfahren und Schaltung zum CDMA Empfang Expired - Lifetime DE69934691T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18937498A JP3028804B2 (ja) 1998-07-03 1998-07-03 Ｃｄｍａ受信方法及び受信回路
JP18937498 1998-07-03
PCT/JP1999/003336 WO2000002338A1 (fr) 1998-07-03 1999-06-23 Procede et circuit de reception en amrc

Publications (2)

Publication Number Publication Date
DE69934691D1 true DE69934691D1 (de) 2007-02-15
DE69934691T2 DE69934691T2 (de) 2007-05-10

Family

ID=16240257

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69934691T Expired - Lifetime DE69934691T2 (de) 1998-07-03 1999-06-23 Verfahren und Schaltung zum CDMA Empfang

Country Status (8)

Country Link
US (1) US6813309B1 (de)
EP (1) EP1096711B1 (de)
JP (1) JP3028804B2 (de)
CN (1) CN1174574C (de)
AU (1) AU760919B2 (de)
DE (1) DE69934691T2 (de)
HK (1) HK1040847B (de)
WO (1) WO2000002338A1 (de)

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JP2001211101A (ja) 2000-01-26 2001-08-03 Nec Corp 低消費電力ｃｄｍａ受信機、及びその消費電力低減方法
JP3387471B2 (ja) 2000-02-14 2003-03-17 日本電気株式会社 スペクトラム拡散通信方式受信機およびスペクトラム拡散通信のパスサーチ方法
JP2001223671A (ja) * 2000-02-14 2001-08-17 Mitsubishi Electric Corp フェージングピッチ検出装置およびこれを用いた携帯情報端末
JP3566895B2 (ja) * 2000-02-15 2004-09-15 株式会社エヌ・ティ・ティ・ドコモ 先頭波位置検出装置、受信装置、先頭位置検出装置、先頭波位置検出方法および先頭位置検出方法
JP2001285129A (ja) 2000-03-29 2001-10-12 Nec Corp Ｃｄｍａ復調回路及び復調方法
JP2001326584A (ja) 2000-05-18 2001-11-22 Nec Corp パス検出方式と受信装置
JP3468509B2 (ja) 2000-08-22 2003-11-17 Ｎｅｃマイクロシステム株式会社 ページングモード制御方法
KR100342496B1 (ko) * 2000-09-08 2002-06-28 윤종용 고속 서처의 직교확산부호 가설 변경 장치 및 방법
JP2002164812A (ja) 2000-11-24 2002-06-07 Nec Corp スペクトラム拡散通信用パスサーチ回路
JP3346415B2 (ja) * 2001-02-14 2002-11-18 日本電気株式会社 移動体通信システムと基地局ならびに通信制御方法
JP2002359576A (ja) * 2001-05-31 2002-12-13 Fujitsu Ltd Ｃｄｍａ受信装置
JP3719175B2 (ja) 2001-08-22 2005-11-24 日本電気株式会社 同期追跡回路
JP3612563B2 (ja) * 2001-09-07 2005-01-19 独立行政法人情報通信研究機構 マルチモードブロック符号化変調復調方法
JP3970565B2 (ja) 2001-09-12 2007-09-05 富士通株式会社 受信装置、受信方法、および、半導体装置
US7190929B2 (en) * 2002-03-15 2007-03-13 Benq Corporation Method and apparatus of RAKE finger management in RAKE receiver
JP3858985B2 (ja) * 2002-03-20 2006-12-20 日本電気株式会社 スペクトル拡散通信システムのパスダイバーシチ受信装置及び方法
US7454209B2 (en) * 2002-09-05 2008-11-18 Qualcomm Incorporated Adapting operation of a communication filter based on mobile unit velocity
US6985727B2 (en) 2002-09-12 2006-01-10 Qualcomm Incorporated Method and apparatus for optimizing search rate and finger assignment rate
US7203258B2 (en) * 2003-03-27 2007-04-10 Agilent Technologies, Inc. Acquisition algorithm in asynchronous CDMA systems
CN100444531C (zh) * 2003-03-31 2008-12-17 富士通株式会社 接收装置
DE60325738D1 (de) * 2003-11-22 2009-02-26 Alcatel Lucent Verfahren zur Ermittlung der Verzögerungen in einem Mehrpfad-Kanal
CN1890890A (zh) * 2003-12-04 2007-01-03 皇家飞利浦电子股份有限公司 包括瑞克接收机的站
JP4628150B2 (ja) * 2004-03-29 2011-02-09 パナソニック株式会社 通信装置及び通信方法
JP4624832B2 (ja) * 2005-03-28 2011-02-02 富士通セミコンダクター株式会社 移動速度推定回路および移動速度推定方法
US20090150115A1 (en) * 2005-11-02 2009-06-11 Nec Corporation Mobile terminal device, mobile speed detecting method used in the device and program thereof
GB0601952D0 (en) * 2006-01-31 2006-03-15 M M I Res Ltd Methods of maintaining connection with, and determining the direction of, a mobile device
US7848388B2 (en) 2006-08-08 2010-12-07 Sony Ericsson Mobile Communications Ab Minimizing estimation time for rake fingers with help of a speed sensor
JP5040237B2 (ja) * 2006-09-29 2012-10-03 株式会社デンソー 車両走行判定装置
US8295328B2 (en) * 2006-10-11 2012-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Doppler frequency control of G-rake receiver
WO2008107848A1 (en) * 2007-03-06 2008-09-12 Nxp B.V. Improvements in or relating to cdma receivers and cdma communications systems
ATE500718T1 (de) * 2007-03-07 2011-03-15 Martin Charles Schaltkreis und verfahren zum überprüfen der impedanz von elektroden und zur steuerung der intensität eines elektrischen stimulus
KR20090129448A (ko) * 2007-03-09 2009-12-16 인터디지탈 테크날러지 코포레이션 재선택 타이머와 셀 랭킹 기준을 조절하고, 서빙 셀의 열화된 신호 측정치를 보고하기 위한 방법 및 장치
US8135097B2 (en) * 2007-11-30 2012-03-13 Qualcomm Incorporated Sequential tracking and offline demodulation in receiver
EP2124136B1 (de) * 2008-05-23 2012-08-22 Charles Martin Freihändige Vorrichtung für Fernsteuerung
US8554136B2 (en) 2008-12-23 2013-10-08 Waveconnex, Inc. Tightly-coupled near-field communication-link connector-replacement chips
FR2943192B1 (fr) * 2009-03-13 2011-06-03 St Wireless Sa Procede d'affectation d'un doigt (finger) pour un recepteur de type rateau (rake) en mode de veille,et dispositif pour la mise en oeuvre du procede
FR2943193B1 (fr) * 2009-03-13 2011-04-01 St Ericsson Sa Procede d'affectation et de liberation d'un correlateur dans un recepteur de type rake et recepteur pour la mise en oeuvre du procede
KR101615082B1 (ko) * 2011-03-24 2016-04-29 키사, 아이엔씨. 전자기 통신의 집적회로
US8811526B2 (en) 2011-05-31 2014-08-19 Keyssa, Inc. Delta modulated low power EHF communication link
TWI633322B (zh) 2011-06-15 2018-08-21 奇沙公司 使用極高頻（ｅｈｆ）信號的近端感測與距離量測
TWI633766B (zh) 2011-10-21 2018-08-21 奇沙公司 用於非接觸的訊號編接的裝置和系統
KR20150041653A (ko) 2012-08-10 2015-04-16 키사, 아이엔씨. Ehf 통신을 위한 유전체 커플링 시스템
CN106330269B (zh) 2012-09-14 2019-01-01 凯萨股份有限公司 具有虚拟磁滞的无线连接
US9531425B2 (en) 2012-12-17 2016-12-27 Keyssa, Inc. Modular electronics
CN105264785B (zh) 2013-03-15 2017-08-11 凯萨股份有限公司 极高频率通信芯片
US9426660B2 (en) 2013-03-15 2016-08-23 Keyssa, Inc. EHF secure communication device
US9383437B2 (en) 2013-04-10 2016-07-05 Mitsubishi Electric Corporation Reception device and reception method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068477C (zh) * 1993-08-06 2001-07-11 Ntt移运通信网株式会社 扩频通信的接收机和中继器
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
JP3366141B2 (ja) 1994-12-06 2003-01-14 沖電気工業株式会社 同期追跡装置
JPH09121202A (ja) 1995-10-25 1997-05-06 Matsushita Electric Ind Co Ltd Ｒａｋｅ方式スペクトラム拡散受信装置
JP3745430B2 (ja) * 1995-12-22 2006-02-15 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａマルチパス・サーチ方法及びｃｄｍａ信号受信装置
JPH09321664A (ja) 1996-05-31 1997-12-12 Matsushita Electric Ind Co Ltd 時間窓制御ループによるｒａｋｅ方式スペクトラム拡散受信装置
US5950131A (en) * 1996-10-29 1999-09-07 Motorola, Inc. Method and apparatus for fast pilot channel acquisition using a matched filter in a CDMA radiotelephone
JP2853705B2 (ja) 1997-05-07 1999-02-03 日本電気株式会社 スペクトラム拡散通信受信機
JP2856198B2 (ja) 1997-06-11 1999-02-10 日本電気株式会社 スペクトラム拡散受信機
JP3441636B2 (ja) * 1997-11-21 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法、受信装置ならびに伝送システム
US6625197B1 (en) * 1998-10-27 2003-09-23 Qualcomm Incorporated Method and apparatus for multipath demodulation in a code division multiple access communication system

Also Published As

Publication number Publication date
HK1040847B (zh) 2005-06-03
EP1096711B1 (de) 2007-01-03
EP1096711A1 (de) 2001-05-02
CN1315091A (zh) 2001-09-26
JP2000022665A (ja) 2000-01-21
US6813309B1 (en) 2004-11-02
HK1040847A1 (en) 2002-06-21
JP3028804B2 (ja) 2000-04-04
DE69934691T2 (de) 2007-05-10
WO2000002338A1 (fr) 2000-01-13
CN1174574C (zh) 2004-11-03
EP1096711A4 (de) 2004-09-29
AU760919B2 (en) 2003-05-22
AU4391999A (en) 2000-01-24

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Legal Events

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