DE69738314D1 - Kohärente signalverarbeitung für cdma-nachrichtenübertragungssystem - Google Patents

Kohärente signalverarbeitung für cdma-nachrichtenübertragungssystem

Info

Publication number
DE69738314D1
DE69738314D1 DE69738314T DE69738314T DE69738314D1 DE 69738314 D1 DE69738314 D1 DE 69738314D1 DE 69738314 T DE69738314 T DE 69738314T DE 69738314 T DE69738314 T DE 69738314T DE 69738314 D1 DE69738314 D1 DE 69738314D1
Authority
DE
Germany
Prior art keywords
signal processing
transmission system
message transmission
coherent signal
cdma message
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
DE69738314T
Other languages
English (en)
Other versions
DE69738314T2 (de
Inventor
Ephraim Zehavi
Serge Willenegger
Joseph P Odenwalder
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 DE69738314D1 publication Critical patent/DE69738314D1/de
Publication of DE69738314T2 publication Critical patent/DE69738314T2/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
    • H04B1/7115—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
    • 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
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)
DE69738314T 1996-07-29 1997-07-29 Kohärente signalverarbeitung für cdma-nachrichtenübertragungssystem Expired - Lifetime DE69738314T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/687,899 US5987076A (en) 1996-07-29 1996-07-29 Coherent signal processing for CDMA communication system
US687899 1996-07-29
PCT/US1997/013226 WO1998005128A1 (en) 1996-07-29 1997-07-29 Coherent signal processing for cdma communication system

Publications (2)

Publication Number Publication Date
DE69738314D1 true DE69738314D1 (de) 2008-01-03
DE69738314T2 DE69738314T2 (de) 2008-10-02

Family

ID=24762322

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69738314T Expired - Lifetime DE69738314T2 (de) 1996-07-29 1997-07-29 Kohärente signalverarbeitung für cdma-nachrichtenübertragungssystem

Country Status (16)

Country Link
US (2) US5987076A (de)
EP (1) EP0916190B1 (de)
JP (1) JP3998718B2 (de)
KR (1) KR100522287B1 (de)
CN (1) CN1146131C (de)
AR (1) AR008100A1 (de)
AU (1) AU3741397A (de)
BR (1) BR9710885A (de)
DE (1) DE69738314T2 (de)
HK (1) HK1020814A1 (de)
ID (1) ID18707A (de)
IL (1) IL128064A (de)
RU (1) RU99104159A (de)
TW (1) TW374962B (de)
WO (1) WO1998005128A1 (de)
ZA (1) ZA976673B (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060262832A1 (en) * 1997-03-12 2006-11-23 Interdigital Technology Corporation Convolutionally encoding and decoding multiple data streams
US6404828B2 (en) * 1997-03-12 2002-06-11 Interdigital Technology Corporation Multichannel decoder
US6295311B1 (en) * 1997-11-07 2001-09-25 Hughes Electronics Corporation Method and apparatus for compensating for phase differences in received signals
US6226318B1 (en) * 1998-03-31 2001-05-01 Zenith Electronics Corporation Detection of code vectors in single frequency, multiple transmitter networks
US6208615B1 (en) * 1998-05-29 2001-03-27 Northern Telecom Limited Broadband wireless access based on code division parallel access
US6377585B1 (en) * 1998-06-05 2002-04-23 Datum, Inc. Precision reference generation system and method
US6690714B1 (en) * 1998-09-30 2004-02-10 Fujitsu Limited Method and apparatus for achieving demodulation in radio communications system using M-sequence orthogonal modulation
US6463097B1 (en) 1998-10-16 2002-10-08 Koninklijke Philips Electronics N.V. Rate detection in direct sequence code division multiple access systems
CA2282800C (en) * 1998-11-09 2007-07-31 Lucent Technologies Inc. A coherent combining/noncoherent detection (ccnd) method and apparatus for detecting a pilot signal in a wireless communication system
US6324395B1 (en) 1998-11-18 2001-11-27 Ericsson Inc. Apparatus and methods for assigning spectral and non-spectral resource charges in wireless communications systems
US6320843B1 (en) 1998-11-18 2001-11-20 Ericsson Inc. Wireless communications systems with standard and robust services and methods of operation thereof
US6332006B1 (en) * 1998-11-18 2001-12-18 Ericsson Inc. Apparatus and methods for providing high-penetration messaging in wireless communications systems
US6463043B1 (en) * 1998-11-25 2002-10-08 Nortel Networks Limited Carrier phase recovery of multi-rate signals
JP3996718B2 (ja) 1999-01-07 2007-10-24 株式会社日立コミュニケーションテクノロジー 端末間通信方法
US6405039B1 (en) 1999-04-20 2002-06-11 Ericsson Inc. Apparatus and methods for allocation of high-penetration services in wireless communications systems
US6628945B1 (en) 1999-04-20 2003-09-30 Ericsson Inc. Apparatus and methods for high-penetration random access in wireless communications systems
US6496706B1 (en) * 1999-07-23 2002-12-17 Qualcomm Incorporated Method and system for transmit gating in a wireless communication system
FR2798794B1 (fr) * 1999-09-17 2001-11-16 Agence Spatiale Europeenne Procede de traitement de signaux de navigation a trajets multiples dans un recepteur presentant une pluralite d'antennes
US6542756B1 (en) 2000-02-29 2003-04-01 Lucent Technologies Inc. Method for detecting forward link power control bits in a communication system
AU768016B2 (en) * 2000-07-05 2003-11-27 Lg Electronics Inc. Method of configuring transmission in mobile communication system
KR100493152B1 (ko) * 2000-07-21 2005-06-02 삼성전자주식회사 이동 통신 시스템에서의 전송 안테나 다이버시티 방법 및이를 위한 기지국 장치 및 이동국 장치
KR100682118B1 (ko) * 2000-08-25 2007-02-12 에스케이 텔레콤주식회사 코드 분할 다원 접속 방식을 기반으로 하는 무선 지역루프 시스템에서의 다원 접속 간섭 제거 장치 및 방법
US6959033B1 (en) * 2000-08-25 2005-10-25 Texas Instruments Incorporated System and method for assigning combiner channels in spread spectrum communications
US6771691B1 (en) 2000-09-15 2004-08-03 Texas Instruments Incorporated System and method for extracting soft symbols in direct sequence spread spectrum communications
US7031374B1 (en) 2000-10-06 2006-04-18 Texas Instruments Incorporated System and method for selecting sample streams in direct sequence spread spectrum communications
US20030126545A1 (en) * 2001-10-05 2003-07-03 Tan Alfred Keng Tiong Non-linear code-division multiple access technology with improved detection algorithms and error correction coding
US6956891B2 (en) * 2000-11-15 2005-10-18 Go-Cdma Limited Method and apparatus for non-linear code-division multiple access technology
KR100551857B1 (ko) * 2000-12-19 2006-02-13 엘지전자 주식회사 이동통신 시스템에서 다중경로 탐색 방법 및 장치
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
US20020181624A1 (en) * 2001-04-19 2002-12-05 Gonzalez Juan G. Method and apparatus for making a channel estimate
US6987799B2 (en) * 2001-05-03 2006-01-17 Texas Instruments Incorporated System and method for demodulating associated information channels in direct sequence spread spectrum communications
JP3562502B2 (ja) * 2001-09-27 2004-09-08 日本電気株式会社 Ｃｄｍａ受信装置及びその装置のチャネル推定方法
US6826235B2 (en) * 2002-01-04 2004-11-30 Itran Communications Ltd. Robust communications system utilizing repetition code and cumulative decoder associated therewith
US6873606B2 (en) 2002-10-16 2005-03-29 Qualcomm, Incorporated Rate adaptive transmission scheme for MIMO systems
US7418042B2 (en) 2003-09-17 2008-08-26 Atheros Communications, Inc. Repetition coding for a wireless system
KR100606884B1 (ko) * 2003-12-30 2006-07-31 엘지노텔 주식회사 다중 경로 검색 장치 및 다중 경로 검색 방법
US7639646B2 (en) * 2004-03-17 2009-12-29 Qualcomm Incorporated Satellite diversity system, apparatus and method
US8331898B2 (en) * 2007-10-03 2012-12-11 Texas Instruments Incorporated Power-saving receiver circuits, systems and processes
CN110708268B (zh) * 2019-09-25 2021-08-27 维沃移动通信有限公司 一种信号调制装置及终端

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002991A (en) * 1975-01-29 1977-01-11 Nippon Gakki Seizo Kabushiki Kaisha Pilot signal extracting circuitry
US4017798A (en) * 1975-09-08 1977-04-12 Ncr Corporation Spread spectrum demodulator
US4048563A (en) * 1975-10-17 1977-09-13 The United States Of America As Represented By The Secretary Of The Navy Carrier-modulated coherency monitoring system
US4189677A (en) * 1978-03-13 1980-02-19 Purdue Research Foundation Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system
US4291409A (en) * 1978-06-20 1981-09-22 The Mitre Corporation Spread spectrum communications method and apparatus
US4247939A (en) * 1978-11-09 1981-01-27 Sanders Associates, Inc. Spread spectrum detector
US4309769A (en) * 1980-02-25 1982-01-05 Harris Corporation Method and apparatus for processing spread spectrum signals
US4730340A (en) * 1980-10-31 1988-03-08 Harris Corp. Programmable time invariant coherent spread symbol correlator
US4484335A (en) * 1982-10-14 1984-11-20 E-Systems, Inc. Method and apparatus for despreading a spread spectrum signal at baseband
US4501002A (en) * 1983-02-28 1985-02-19 Auchterlonie Richard C Offset QPSK demodulator and receiver
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile 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
US5270718A (en) * 1992-08-21 1993-12-14 Technology Service Corporation Method and apparatus for tracking targets from direct and multipath reflected radar signals
ZA938324B (en) * 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
US5442627A (en) * 1993-06-24 1995-08-15 Qualcomm Incorporated Noncoherent receiver employing a dual-maxima metric generation process
US5414728A (en) * 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
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
US5465269A (en) * 1994-02-02 1995-11-07 Motorola, Inc. Method and apparatus for encoding and decoding a supplementary signal
US5530716A (en) * 1994-06-30 1996-06-25 Motorola, Inc. Method and apparatus for identifying a coded communication signal

Also Published As

Publication number Publication date
JP3998718B2 (ja) 2007-10-31
IL128064A0 (en) 1999-11-30
IL128064A (en) 2003-11-23
DE69738314T2 (de) 2008-10-02
BR9710885A (pt) 2000-01-11
EP0916190B1 (de) 2007-11-21
TW374962B (en) 1999-11-21
CN1228208A (zh) 1999-09-08
US5987076A (en) 1999-11-16
JP2000516412A (ja) 2000-12-05
HK1020814A1 (en) 2000-05-19
EP0916190A1 (de) 1999-05-19
AU3741397A (en) 1998-02-20
ID18707A (id) 1998-04-30
KR100522287B1 (ko) 2005-10-19
RU99104159A (ru) 2001-01-27
ZA976673B (en) 1998-09-01
KR20000029681A (ko) 2000-05-25
CN1146131C (zh) 2004-04-14
AR008100A1 (es) 1999-12-09
US6148042A (en) 2000-11-14
WO1998005128A1 (en) 1998-02-05

Similar Documents

Publication Publication Date Title
DE69738314D1 (de) Kohärente signalverarbeitung für cdma-nachrichtenübertragungssystem
DE69725995D1 (de) Raumzeitliche signalverarbeitung für übertragungssysteme
DE69826365D1 (de) Empfangsgerät für CDMA Nachrichtenübertragungssystem
DE69732357D1 (de) Teilnehmergerät für drahtloses cdma-nachrichtenübertragungssystem
DE69738015D1 (de) Informationsübertragungssystem
DE69707934D1 (de) Getriebekühlsystem
DE69736990D1 (de) Digitales Übertragungssystem
DE69739971D1 (de) Verteiltes system für übertragungsnetze in mehrbenutzeranwendungen
NO963136D0 (no) Transmisjonssystem for trådlöst samband
DE69732391D1 (de) Interferenzkompensator für CDMA-Nachrichtenübertragung
DE59900556D1 (de) Getriebesystem
DE69739835D1 (de) Kompiler für verteilte Verarbeitung
DE69617445D1 (de) Nachrichtenübertragungssystem
DE69626331D1 (de) Kühlsystem für Baumaschinen
DE69740015D1 (de) Optisches Übertragungssystem
DE69839809D1 (de) Diagnosesystem und -methode für telefonteilnehmerleitung
DE69721158D1 (de) CDMA Nachrichtenübertragungssystem
BR9706428A (pt) Aparelho de recepção de transmissão
DE59802967D1 (de) Wegaufnehmersystem für schaltmagnete
DE69632793D1 (de) Netzleitungsübertragungssystem
DE69827540D1 (de) Signalverarbeitungssystem
DE59409988D1 (de) Übertragungssystem für Zeitmultiplex-Signalübertragung
DE69816883D1 (de) Verarbeitungsschaltung für Synchronisierungssignal
DE69605935D1 (de) Zellulares übertragungssystem
DE69722499D1 (de) Datenübertragungssystem für Parallelschnittstelle

Legal Events

Date Code Title Description
8364 No opposition during term of opposition