DE69515884D1 - Synchrones mehrpunkt-zu-punkt cdma-nachrichtenübertragungssystem - Google Patents

Synchrones mehrpunkt-zu-punkt cdma-nachrichtenübertragungssystem

Info

Publication number
DE69515884D1
DE69515884D1 DE69515884T DE69515884T DE69515884D1 DE 69515884 D1 DE69515884 D1 DE 69515884D1 DE 69515884 T DE69515884 T DE 69515884T DE 69515884 T DE69515884 T DE 69515884T DE 69515884 D1 DE69515884 D1 DE 69515884D1
Authority
DE
Germany
Prior art keywords
point
transmission system
message transmission
synchronous multi
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 - Fee Related
Application number
DE69515884T
Other languages
English (en)
Other versions
DE69515884T2 (de
Inventor
Robert Giallorenzi
Thomas Rafter
Clayton Greenwood
Baron Press
Charles Kingston
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.)
Unisys Corp
Original Assignee
Unisys 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 Unisys Corp filed Critical Unisys Corp
Publication of DE69515884D1 publication Critical patent/DE69515884D1/de
Application granted granted Critical
Publication of DE69515884T2 publication Critical patent/DE69515884T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/005—Optical Code Multiplex
DE69515884T 1994-08-16 1995-08-15 Synchrones mehrpunkt-zu-punkt cdma-nachrichtenübertragungssystem Expired - Fee Related DE69515884T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/291,648 US5499236A (en) 1994-08-16 1994-08-16 Synchronous multipoint-to-point CDMA communication system
PCT/US1995/010409 WO1996005669A1 (en) 1994-08-16 1995-08-15 Synchronous multipoint-to-point cdma communication system

Publications (2)

Publication Number Publication Date
DE69515884D1 true DE69515884D1 (de) 2000-04-27
DE69515884T2 DE69515884T2 (de) 2000-07-20

Family

ID=23121194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69515884T Expired - Fee Related DE69515884T2 (de) 1994-08-16 1995-08-15 Synchrones mehrpunkt-zu-punkt cdma-nachrichtenübertragungssystem

Country Status (7)

Country Link
US (2) US5499236A (de)
EP (1) EP0776556B1 (de)
JP (1) JP3613580B2 (de)
AU (1) AU698991B2 (de)
CA (1) CA2197757A1 (de)
DE (1) DE69515884T2 (de)
WO (1) WO1996005669A1 (de)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107420B (fi) * 1994-04-18 2001-07-31 Nokia Networks Oy Vastaanottomenetelmä ja vastaanotin
US5499236A (en) * 1994-08-16 1996-03-12 Unisys Corporation Synchronous multipoint-to-point CDMA communication system
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
US5630204A (en) * 1995-05-01 1997-05-13 Bell Atlantic Network Services, Inc. Customer premise wireless distribution of broad band signals and two-way communication of control signals over power lines
US5793797A (en) * 1995-05-09 1998-08-11 Unisys Corporation Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
US5638379A (en) * 1995-06-06 1997-06-10 Symmetricom, Inc. Encoding system for distribution of synchronization
US5828670A (en) * 1995-06-06 1998-10-27 Symmetricom, Inc. Distribution of synchronization in a synchronous optical environment
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6307868B1 (en) 1995-08-25 2001-10-23 Terayon Communication Systems, Inc. Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops
US5768269A (en) * 1995-08-25 1998-06-16 Terayon Corporation Apparatus and method for establishing frame synchronization in distributed digital data communication systems
US5991308A (en) * 1995-08-25 1999-11-23 Terayon Communication Systems, Inc. Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
US5793759A (en) * 1995-08-25 1998-08-11 Terayon Corporation Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes
US6356555B1 (en) 1995-08-25 2002-03-12 Terayon Communications Systems, Inc. Apparatus and method for digital data transmission using orthogonal codes
US6665308B1 (en) 1995-08-25 2003-12-16 Terayon Communication Systems, Inc. Apparatus and method for equalization in distributed digital data transmission systems
US5805583A (en) * 1995-08-25 1998-09-08 Terayon Communication Systems Process for communicating multiple channels of digital data in distributed systems using synchronous code division multiple access
US6047015A (en) * 1995-10-20 2000-04-04 Matsushita Electric Industrial Co., Ltd. Mobile radio apparatus
US6246715B1 (en) 1998-06-26 2001-06-12 Samsung Electronics Co., Ltd. Data transmitter and receiver of a DS-CDMA communication system
US5841776A (en) * 1995-12-29 1998-11-24 Lucent Technologies Inc. Apparatus and method for a high throughput fiber-optic access network using code division multiple access
US5825835A (en) * 1996-02-23 1998-10-20 L-3 Communications Corporation Multi-user acquisition procedure for multipoint-to-point synchronous CDMA systems
US5805584A (en) * 1996-02-23 1998-09-08 L-3 Communications Corporation Multi-user acquisition procedure for point-to-multipoint synchronous CDMA systems
FI961362A (fi) 1996-03-25 1997-09-26 Nokia Telecommunications Oy Häiriöiden vähentämismenetelmä ja radiojärjestelmä
US6134215A (en) * 1996-04-02 2000-10-17 Qualcomm Incorpoated Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel
JPH1013918A (ja) * 1996-06-19 1998-01-16 Toshiba Corp 符号分割多元接続方式を採用した移動通信システムとその無線通信装置
JPH1022874A (ja) * 1996-07-09 1998-01-23 Hitachi Ltd Ｃｄｍａ通信システムおよび通信方法
US5867525A (en) 1997-06-10 1999-02-02 L-3 Commuications Corporation Synchronizer and method therefor and communications system incorporating same
US5917852A (en) * 1997-06-11 1999-06-29 L-3 Communications Corporation Data scrambling system and method and communications system incorporating same
US6061339A (en) * 1997-12-10 2000-05-09 L-3 Communications Corporation Fixed wireless loop system having adaptive system capacity based on estimated signal to noise ratio
US6011788A (en) * 1997-12-10 2000-01-04 L-3 Communications Corporation S-CDMA fixed wireless loop system employing subscriber unit/radio base unit super-frame alignment
US5966373A (en) * 1997-12-10 1999-10-12 L-3 Communications Corporation Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system
US5963549A (en) * 1997-12-10 1999-10-05 L-3 Communications Corporation Fixed wireless loop system having baseband combiner predistortion summing table
US6023462A (en) * 1997-12-10 2000-02-08 L-3 Communications Corporation Fixed wireless loop system that ranks non-assigned PN codes to reduce interference
US6243369B1 (en) * 1998-05-06 2001-06-05 Terayon Communication Systems, Inc. Apparatus and method for synchronizing an SCDMA upstream or any other type upstream to an MCNS downstream or any other type downstream with a different clock rate than the upstream
FI106896B (fi) * 1998-07-22 2001-04-30 Nokia Networks Oy Tiedonsiirtomenetelmä, radioverkkoalijärjestelmä ja tilaajapäätelaite
JP2003503877A (ja) * 1999-06-29 2003-01-28 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｃｄｍａシステムにおける妨害除去に関する同期コードワード
US8363757B1 (en) 1999-10-12 2013-01-29 Qualcomm Incorporated Method and apparatus for eliminating the effects of frequency offsets in a digital communication system
JP2003528483A (ja) * 1999-10-21 2003-09-24 アセロス コミュニケーションズ インク． デジタル通信システムのタイミング制御の方法および装置
US6704322B1 (en) * 1999-11-17 2004-03-09 National Science Council Smart different prime code multiplexing system
US6628673B1 (en) * 1999-12-29 2003-09-30 Atheros Communications, Inc. Scalable communication system using overlaid signals and multi-carrier frequency communication
EP1530301B1 (de) * 2000-03-28 2010-04-21 Interdigital Technology Corporation Cdma system, welches vor dem senden eine vordrehung benutzt
US6807146B1 (en) 2000-04-21 2004-10-19 Atheros Communications, Inc. Protocols for scalable communication system using overland signals and multi-carrier frequency communication
WO2001082543A2 (en) 2000-04-22 2001-11-01 Atheros Communications, Inc. Multi-carrier communication systems employing variable ofdm-symbol rates and number of carriers
ATE297076T1 (de) * 2000-06-05 2005-06-15 Linkair Comm Inc Umkehr-synschronisierungsverfahren in einem drahtlosen system
US7103061B1 (en) * 2000-06-26 2006-09-05 Koninklijke Philips Electronics N.V. Synchronization codeword for interference reduction in a CDMA system
US6491517B2 (en) 2000-07-10 2002-12-10 Faith Freeman Decorative candle display and method of formation
US6210153B1 (en) 2000-07-10 2001-04-03 Primal Elements, Inc Decorative candle display and method of formation
US7099372B2 (en) * 2000-10-27 2006-08-29 L-3 Communications Corporation Spreading code hopping for synchronous DS-CDMA system to mitigate interference effects
US20020067759A1 (en) * 2000-10-27 2002-06-06 L-3 Communications Corporation Efficient implementation of space division/multiple access for a synchronous CDMA communication system
US20030021271A1 (en) * 2001-04-03 2003-01-30 Leimer Donald K. Hybrid wireless communication system
KR20030013097A (ko) * 2001-08-07 2003-02-14 삼성전자주식회사 이동통신시스템에서 텔레비전 방송 서비스 장치 및 방법
JP4276009B2 (ja) * 2003-02-06 2009-06-10 株式会社エヌ・ティ・ティ・ドコモ 移動局、基地局、無線伝送プログラム、及び無線伝送方法
US7301985B1 (en) 2003-06-30 2007-11-27 L-3 Communications Corporation Pseudo-noise code hopping method and apparatus
JP4685492B2 (ja) * 2005-04-01 2011-05-18 株式会社エヌ・ティ・ティ・ドコモ 送信機、受信機、移動通信システム
US7738611B2 (en) * 2006-08-07 2010-06-15 Harris Stratex Networks, Inc. Remote monitoring and calibration of system reference clock using network timing reference
JP2008159222A (ja) * 2006-12-26 2008-07-10 Toshiba Corp ディスク記憶装置、サーボ書込み方法及びサーボパターン
WO2009122787A1 (ja) * 2008-03-31 2009-10-08 株式会社日立コミュニケーションテクノロジー 無線通信システムにおけるタイミング調整方法、受信局、送信局及び無線通信システム
JP5336611B2 (ja) * 2009-02-24 2013-11-06 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 通信ネットワークにおけるクロック回復
JP5348490B2 (ja) * 2009-08-13 2013-11-20 ソニー株式会社 信号処理装置および方法、並びに受信システム

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046997C1 (de) * 1970-09-24 1977-12-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt System zur ZeitfunktionenmultiplexÜbertragung von Nachrichten
JPS6013590B2 (ja) * 1977-11-21 1985-04-08 富士通株式会社 符号切替拡散同期方式
JPS5472616A (en) * 1977-11-21 1979-06-11 Fujitsu Ltd Synchronizing system for code assignment diffusion
KR860001747B1 (ko) * 1984-11-26 1986-10-20 한국과학기술원 부호 분할 다중 방식을 이용한 근거리 통신 방식
US4908836A (en) * 1988-10-11 1990-03-13 Unisys Corporation Method and apparatus for decoding multiple bit sequences that are transmitted simultaneously in a single channel
US5031173A (en) * 1989-08-15 1991-07-09 Unisys Corporation Decoder for added asynchronous bit sequences
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5056106A (en) * 1990-08-02 1991-10-08 Wang James J Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques
US5235615A (en) * 1991-05-22 1993-08-10 Cylink Corporation Spread spectrum method
US5177766A (en) * 1991-06-03 1993-01-05 Spectralink Corporation Digital clock timing generation in a spread-spectrum digital communication system
MX9301888A (es) * 1992-04-10 1993-11-30 Ericsson Telefon Ab L M Acceso multiple de division de tiempo para acceso de un movil en un sistema de acceso multiple de division de codigo.
US5343496A (en) * 1993-09-24 1994-08-30 Bell Communications Research, Inc. Interference suppression in CDMA systems
JP2677191B2 (ja) * 1994-03-15 1997-11-17 日本電気株式会社 Ｃｄｍａ通信方式
US5499236A (en) * 1994-08-16 1996-03-12 Unisys Corporation Synchronous multipoint-to-point CDMA communication system

Also Published As

Publication number Publication date
WO1996005669A1 (en) 1996-02-22
CA2197757A1 (en) 1996-02-22
AU3327695A (en) 1996-03-07
AU698991B2 (en) 1998-11-19
US5583853A (en) 1996-12-10
EP0776556B1 (de) 2000-03-22
JP3613580B2 (ja) 2005-01-26
DE69515884T2 (de) 2000-07-20
EP0776556A1 (de) 1997-06-04
US5499236A (en) 1996-03-12
JPH10504154A (ja) 1998-04-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee