[go: up one dir, main page]

DE69929379D1 - CDMA-Rake-Empfangssignalkombination - Google Patents

CDMA-Rake-Empfangssignalkombination

Info

Publication number
DE69929379D1
DE69929379D1 DE69929379T DE69929379T DE69929379D1 DE 69929379 D1 DE69929379 D1 DE 69929379D1 DE 69929379 T DE69929379 T DE 69929379T DE 69929379 T DE69929379 T DE 69929379T DE 69929379 D1 DE69929379 D1 DE 69929379D1
Authority
DE
Germany
Prior art keywords
receiving signal
signal combination
rake receiving
cdma rake
cdma
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
DE69929379T
Other languages
English (en)
Other versions
DE69929379T2 (de
Inventor
Tetsuya Miura
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 DE69929379D1 publication Critical patent/DE69929379D1/de
Publication of DE69929379T2 publication Critical patent/DE69929379T2/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
    • H04B1/7113—Determination of path profile
    • 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
    • H04B1/709—Correlator structure
    • 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
    • H04B1/7097—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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
DE1999629379 1998-08-24 1999-08-19 CDMA-Rake-Empfangssignalkombination Expired - Lifetime DE69929379T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP23691398 1998-08-24
JP23691398A JP2991196B1 (ja) 1998-08-24 1998-08-24 Ｃｄｍａ受信方法および受信機

Publications (2)

Publication Number Publication Date
DE69929379D1 true DE69929379D1 (de) 2006-04-06
DE69929379T2 DE69929379T2 (de) 2006-09-07

Family

ID=17007618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999629379 Expired - Lifetime DE69929379T2 (de) 1998-08-24 1999-08-19 CDMA-Rake-Empfangssignalkombination

Country Status (7)

Country Link
US (1) US6628700B1 (de)
EP (1) EP0982871B1 (de)
JP (1) JP2991196B1 (de)
KR (1) KR100331907B1 (de)
CN (1) CN1277420C (de)
BR (1) BR9915418A (de)
DE (1) DE69929379T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3251261B2 (ja) 1999-04-21 2002-01-28 エヌイーシーモバイリング株式会社 Ｃｄｍａ受信装置
JP3367475B2 (ja) * 1999-07-06 2003-01-14 日本電気株式会社 無線通信機および無線通信機の消費電力制御方法
FI19992694A (fi) * 1999-12-15 2001-06-16 Nokia Networks Oy Menetelmä hajaspektrisignaalin vastaanottamiseksi ja vastaanotin
KR100349648B1 (ko) * 1999-12-27 2002-08-22 주식회사 큐리텔 무선통신 시스템에서의 결정변수 계산장치
JP4316759B2 (ja) * 2000-01-13 2009-08-19 株式会社日立国際電気 パス認定方法、ｃｄｍａ方式無線通信端末およびｃｄｍａ方式無線通信システム
US6795423B1 (en) * 2000-02-04 2004-09-21 Interdigital Technology Corporation System for continuous wave rejection
JP3418981B2 (ja) * 2000-02-16 2003-06-23 日本電気株式会社 スペクトラム拡散通信同期捕捉回路
JP3413833B2 (ja) 2000-05-18 2003-06-09 日本電気株式会社 アクセス制御方法と基地局装置
EP1300973B1 (de) 2000-07-11 2006-01-25 Fujitsu Limited Codemultiplex-signalempfangsgerät
US7085310B2 (en) * 2001-01-29 2006-08-01 Qualcomm, Incorporated Method and apparatus for managing finger resources in a communication system
JP3714406B2 (ja) * 2001-04-27 2005-11-09 日本電気株式会社 Ｗ−ｃｄｍａ方式を用いた送信電力制御回路
JP3580273B2 (ja) * 2001-07-24 2004-10-20 日本電気株式会社 Ｓｉｒ測定システムと装置及び方法
JP3588087B2 (ja) * 2002-04-19 2004-11-10 松下電器産業株式会社 Ｓｉｒ測定装置および方法
US7573934B2 (en) * 2002-09-13 2009-08-11 Fujitsu Limited Spread spectrum rake receiver
SG108874A1 (en) * 2002-09-17 2005-02-28 Sony Corp Channel equalisation
JP4123364B2 (ja) 2003-02-07 2008-07-23 日本電気株式会社 Ｃｄｍａ受信装置
US7349461B2 (en) * 2003-02-13 2008-03-25 Qualcomm Incorporated Efficient back-end channel matched filter (CMF)
US7561637B2 (en) * 2003-05-19 2009-07-14 Telefonaktiebolaget L M Ericsson (Publ) Determination of a channel estimate of a transmission channel
JP4661560B2 (ja) * 2005-11-30 2011-03-30 日本電気株式会社 同期追跡回路及びｃｄｍａ受信装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499265A (en) * 1989-08-07 1996-03-12 Omnipoint Data Company, Incorporated Spread spectrum correlator
JP2697502B2 (ja) * 1992-07-30 1998-01-14 日本電気株式会社 スペクトル拡散受信装置
US5349606A (en) * 1992-12-31 1994-09-20 Gte Government Systems Corporation Apparatus for multipath DSSS communications
JP3143247B2 (ja) * 1993-01-11 2001-03-07 沖電気工業株式会社 符号分割多元接続復調装置
US5740208A (en) * 1993-06-25 1998-04-14 Roke Manor Research Limited Interference cancellation apparatus for mitigating the effects of poor affiliation between a base station and a mobile unit
WO1995005037A1 (fr) * 1993-08-06 1995-02-16 Ntt Mobile Communications Network Inc. Recepteur et repeteur pour communications a spectre etale
EP0776105B1 (de) * 1995-06-13 2004-08-25 NTT DoCoMo, Inc. Cdma-demodulator
JPH09223981A (ja) * 1996-02-16 1997-08-26 Omron Corp 受信装置
US5809020A (en) * 1996-03-18 1998-09-15 Motorola, Inc. Method for adaptively adjusting weighting coefficients in a cDMA radio receiver
JP2762996B1 (ja) 1996-12-11 1998-06-11 日本電気株式会社 受信装置
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
US6363104B1 (en) * 1998-10-02 2002-03-26 Ericsson Inc. Method and apparatus for interference cancellation in a rake receiver

Also Published As

Publication number Publication date
EP0982871A2 (de) 2000-03-01
EP0982871B1 (de) 2006-01-11
JP2000068981A (ja) 2000-03-03
BR9915418A (pt) 2001-07-31
CN1249638A (zh) 2000-04-05
EP0982871A3 (de) 2003-09-17
JP2991196B1 (ja) 1999-12-20
DE69929379T2 (de) 2006-09-07
US6628700B1 (en) 2003-09-30
KR100331907B1 (ko) 2002-04-10
CN1277420C (zh) 2006-09-27
KR20000017448A (ko) 2000-03-25

Similar Documents

Publication Publication Date Title
DE69827884D1 (de) CDMA Rake-Empfangsgerät
DE69700866D1 (de) RAKE-Empfänger
NO20011494L (no) RAKE-mottaker
MA24215A1 (fr) Composes inhibiteurs de squalene-synthetase
DK1070058T3 (da) (4-Arylsulfonylamino)-tetrahydropyran-4-carboxylsyrehydroxamider
DE69929379D1 (de) CDMA-Rake-Empfangssignalkombination
PT965343E (pt) Formulacoes de ziprasidona
DE59904746D1 (de) Hydraulische schaltung
DE69915556D1 (de) Werkzeughalter
DE59910376D1 (de) Schleuderstreuer
ID23761A (id) Trisiklik tersubstitusi
DE69920073D1 (de) kinderschutzhöschen
DE69930340D1 (de) Reibahle
EP1087957A4 (de) Verbindungen mit selbstinduktion
ID23219A (id) Trisiklik tersubstitusi
DE69933949D1 (de) Cdma-empfänger
DE59903285D1 (de) Aufnehmer
DE69938388D1 (de) Empfänger
DE59911610D1 (de) Substituierte benzoylcyclohexandione
DE60037153D1 (de) CDMA Mehrwegempfänger
ATA114998A (de) Brennwertgerät
PT1076660E (pt) (4-bromopirazol-3-il)-benzazolos substituidos
ATE303996T1 (de) Substituierte acylaminophenyl-uracile
DE59912188D1 (de) Substituierte phenyluracile
FI980856A0 (fi) Andningsskydd utrustad med en identifierare

Legal Events

Date Code Title Description
8364 No opposition during term of opposition