ES2251253T3 - Deteccion de enganche para receptor inalambrico de trayectorias multiples. - Google Patents

Deteccion de enganche para receptor inalambrico de trayectorias multiples.

Info

Publication number
ES2251253T3
ES2251253T3 ES99964215T ES99964215T ES2251253T3 ES 2251253 T3 ES2251253 T3 ES 2251253T3 ES 99964215 T ES99964215 T ES 99964215T ES 99964215 T ES99964215 T ES 99964215T ES 2251253 T3 ES2251253 T3 ES 2251253T3
Authority
ES
Spain
Prior art keywords
signal
energy
index
symbol
comparison
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
ES99964215T
Other languages
English (en)
Spanish (es)
Inventor
Jeffrey A. Levin
Christopher C. Riddle
Tom B. Sherman
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ES2251253T3 publication Critical patent/ES2251253T3/es
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
    • 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)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Burglar Alarm Systems (AREA)
  • Lock And Its Accessories (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
ES99964215T 1998-12-11 1999-12-09 Deteccion de enganche para receptor inalambrico de trayectorias multiples. Expired - Lifetime ES2251253T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US209356 1998-12-11
US09/209,356 US6130923A (en) 1998-12-11 1998-12-11 Lock detection for multipath wireless receiver

Publications (1)

Publication Number Publication Date
ES2251253T3 true ES2251253T3 (es) 2006-04-16

Family

ID=22778451

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99964215T Expired - Lifetime ES2251253T3 (es) 1998-12-11 1999-12-09 Deteccion de enganche para receptor inalambrico de trayectorias multiples.

Country Status (14)

Country Link
US (1) US6130923A (enExample)
EP (1) EP1138127B1 (enExample)
JP (1) JP4330804B2 (enExample)
KR (1) KR100711039B1 (enExample)
CN (1) CN1130034C (enExample)
AT (1) ATE308163T1 (enExample)
AU (1) AU766145B2 (enExample)
BR (1) BRPI9916106B1 (enExample)
CA (1) CA2354706C (enExample)
DE (1) DE69928003T2 (enExample)
ES (1) ES2251253T3 (enExample)
IL (2) IL143663A0 (enExample)
NO (1) NO324203B1 (enExample)
WO (1) WO2000035113A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6130923A (en) * 1998-12-11 2000-10-10 Qualcomm Incorporated Lock detection for multipath wireless receiver
US6975670B1 (en) * 2000-10-02 2005-12-13 Koninklijke Philips Electronics N.V. Managing assigned fingers in wireless telecommunication using a finger lock mechanism
JP2004500769A (ja) 2000-02-23 2004-01-08 タンティビ・コミュニケーションズ・インコーポレーテッド 衝突検出を用いるアクセス調査および確認
KR100344693B1 (ko) * 2000-09-29 2002-07-25 주식회사 케이티프리텔 다중반송파 코드분할다중접속시스템의 자동주파수제어장치및 주파수보정방법
US7068707B2 (en) * 2001-03-08 2006-06-27 Qualcomm, Inc. Method and apparatus for tracking signals in a wireless communication system
KR20030033192A (ko) * 2001-10-18 2003-05-01 주식회사 세스텍 스마트 안테나 시스템에서 심볼레이트와 칩레이트를혼용하여 웨이팅하는 핑거와, 그를 이용한 복조 장치 및방법
US6826235B2 (en) * 2002-01-04 2004-11-30 Itran Communications Ltd. Robust communications system utilizing repetition code and cumulative decoder associated therewith
US7515876B2 (en) * 2005-05-03 2009-04-07 Agere Systems Inc. Rake receiver with time-shared fingers
RU2541908C1 (ru) * 2013-11-14 2015-02-20 Открытое акционерное общество "Камчатский гидрофизический институт" (ОАО "КГФИ") Устройство для декодирования сигналов, прошедших многолучевой канал связи
RU2541199C1 (ru) * 2013-11-19 2015-02-10 Открытое акционерное общество "Камчатский гидрофизический институт" (ОАО "КГФИ") Устройство для декодирования дискретных сигналов, распространяющихся в многолучевом канале
KR102722761B1 (ko) * 2017-02-10 2024-10-29 삼성전자 주식회사 무선 통신 시스템에서 수신 신호를 컴바이닝하는 방법 및 장치

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4894842A (en) * 1987-10-15 1990-01-16 The Charles Stark Draper Laboratory, Inc. Precorrelation digital spread spectrum receiver
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5452331A (en) * 1992-08-14 1995-09-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Symbol lock detection implemented with nonoverlapping integration intervals
ZA938324B (en) * 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
EP0653127A1 (en) * 1993-06-02 1995-05-17 Roke Manor Research Limited Rake receiver combining all the useful multipath components of a spread spectrum signal
US5442627A (en) * 1993-06-24 1995-08-15 Qualcomm Incorporated Noncoherent receiver employing a dual-maxima metric generation process
US5361276A (en) * 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US5479475A (en) * 1993-11-15 1995-12-26 Qualcomm Incorporated Method and system for providing communication between standard terminal equipment using a remote communication unit
US5561618A (en) * 1993-12-22 1996-10-01 Qualcomm Incorporated Method and apparatus for performing a fast Hadamard transform
ATE277458T1 (de) * 1994-07-29 2004-10-15 Qualcomm Inc Verfahren und gerät zum ausführen der kodeerfassung in einem cdma übertragungssystem
US5654979A (en) * 1995-01-13 1997-08-05 Qualcomm Incorporated Cell site demodulation architecture for a spread spectrum multiple access communication systems
US5703902A (en) * 1995-06-16 1997-12-30 Qualcomm Incorporated Method and apparatus for determining signal strength in a variable data rate system
US5764687A (en) * 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
US5764688A (en) * 1995-06-30 1998-06-09 Roke Manor Research Limited Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
US5805648A (en) * 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
US5930288A (en) * 1996-05-06 1999-07-27 Motorola, Inc. Time-shared lock indicator circuit and method for power control and traffic channel decoding in a radio receiver
US6130923A (en) * 1998-12-11 2000-10-10 Qualcomm Incorporated Lock detection for multipath wireless receiver

Also Published As

Publication number Publication date
JP2002532945A (ja) 2002-10-02
BR9916106A (pt) 2001-12-18
EP1138127A1 (en) 2001-10-04
CA2354706A1 (en) 2000-06-15
KR20010080747A (ko) 2001-08-22
BRPI9916106B1 (pt) 2017-03-14
NO20012829L (no) 2001-08-02
CN1334996A (zh) 2002-02-06
AU766145B2 (en) 2003-10-09
IL143663A (en) 2006-06-11
CA2354706C (en) 2006-01-31
NO324203B1 (no) 2007-09-10
EP1138127B1 (en) 2005-10-26
DE69928003D1 (de) 2005-12-01
KR100711039B1 (ko) 2007-04-24
HK1041123A1 (en) 2002-06-28
ATE308163T1 (de) 2005-11-15
WO2000035113A1 (en) 2000-06-15
US6130923A (en) 2000-10-10
IL143663A0 (en) 2002-04-21
AU2050200A (en) 2000-06-26
DE69928003T2 (de) 2006-07-27
NO20012829D0 (no) 2001-06-08
CN1130034C (zh) 2003-12-03
JP4330804B2 (ja) 2009-09-16

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