DE69733195D1 - Trägerrückgewinnung der vorwärtsverbindung in einem ocdma spreizband-kommunikationssystem ohne pilotton - Google Patents

Trägerrückgewinnung der vorwärtsverbindung in einem ocdma spreizband-kommunikationssystem ohne pilotton

Info

Publication number
DE69733195D1
DE69733195D1 DE69733195T DE69733195T DE69733195D1 DE 69733195 D1 DE69733195 D1 DE 69733195D1 DE 69733195 T DE69733195 T DE 69733195T DE 69733195 T DE69733195 T DE 69733195T DE 69733195 D1 DE69733195 D1 DE 69733195D1
Authority
DE
Germany
Prior art keywords
signal
base station
communication system
pilotton
ocdma
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
DE69733195T
Other languages
English (en)
Other versions
DE69733195T2 (de
Inventor
D Natali
John Ohlson
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.)
Alcatel USA Sourcing Inc
Original Assignee
Alcatel USA Sourcing 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 Alcatel USA Sourcing Inc filed Critical Alcatel USA Sourcing Inc
Publication of DE69733195D1 publication Critical patent/DE69733195D1/de
Application granted granted Critical
Publication of DE69733195T2 publication Critical patent/DE69733195T2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/102—Combining codes
DE69733195T 1996-03-25 1997-03-24 Trägerrückgewinnung der vorwärtsverbindung in einem ocdma spreizband-kommunikationssystem ohne pilotton Expired - Lifetime DE69733195T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US621361 1990-12-07
US08/621,361 US5764630A (en) 1996-03-25 1996-03-25 Forward link carrier recovery in an OCDMA spread spectrum communication system without a pilot tone
PCT/US1997/004281 WO1997036396A1 (en) 1996-03-25 1997-03-24 Forward link carrier recovery in an ocdma spread spectrum communication system without a pilot tone

Publications (2)

Publication Number Publication Date
DE69733195D1 true DE69733195D1 (de) 2005-06-09
DE69733195T2 DE69733195T2 (de) 2006-02-16

Family

ID=24489848

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69733195T Expired - Lifetime DE69733195T2 (de) 1996-03-25 1997-03-24 Trägerrückgewinnung der vorwärtsverbindung in einem ocdma spreizband-kommunikationssystem ohne pilotton

Country Status (6)

Country Link
US (1) US5764630A (de)
EP (1) EP0878077B1 (de)
AT (1) ATE295031T1 (de)
BR (1) BR9708147A (de)
DE (1) DE69733195T2 (de)
WO (1) WO1997036396A1 (de)

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US6330291B1 (en) * 1996-03-29 2001-12-11 Qualcomm Inc. Frequency tracking for communication signals using M-ary orthogonal walsh modulation
JPH1022874A (ja) * 1996-07-09 1998-01-23 Hitachi Ltd Ｃｄｍａ通信システムおよび通信方法
GB2315647B (en) * 1996-07-23 2001-02-21 Roke Manor Research Randomised code acquisition
US6222828B1 (en) * 1996-10-30 2001-04-24 Trw, Inc. Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications
GB2320660A (en) * 1996-12-20 1998-06-24 Dsc Telecom Lp Processing data transmitted and received over a wireless link connecting a central terminal and a subscriber terminal of a wireless telecommunication system
JP2861985B2 (ja) * 1997-06-16 1999-02-24 日本電気株式会社 Ｃｄｍａ用高速セルサーチ方式
US6055230A (en) * 1997-09-05 2000-04-25 Metawave Communications Corporation Embedded digital beam switching
US6317412B1 (en) * 1997-12-12 2001-11-13 Stanford Telecommunications, Inc. Increased capacity in an OCDMA system for frequency isolation
US6075781A (en) * 1997-12-12 2000-06-13 Stanford Telecommunications, Inc. Flux density reduction in OCDMA satellite communication system
US6205167B1 (en) * 1997-12-23 2001-03-20 Philips Electronics North America Corporation Apparatus and method for code tracking in an IS-95 spread spectrum communications system
US6512755B1 (en) 1997-12-29 2003-01-28 Alcatel Usa Sourcing, L.P. Wireless telecommunications access system
US6570844B1 (en) 1997-12-29 2003-05-27 Alcatel Usa Sourcing, L.P. System and method for providing redundancy in a telecommunications system
US6603801B1 (en) 1998-01-16 2003-08-05 Intersil Americas Inc. Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
US6563858B1 (en) * 1998-01-16 2003-05-13 Intersil Americas Inc. Method of performing antenna diversity in spread spectrum in wireless local area network
WO2000013334A1 (en) * 1998-08-28 2000-03-09 Siemens Aktiengesellschaft Receiver and method of recovering data from radio signals
US6980531B1 (en) 1998-12-02 2005-12-27 At&T Corp. Multiple access spread spectrum switching methodology
US6301311B1 (en) * 1999-02-10 2001-10-09 Anritsu Company Non-coherent, non-data-aided pseudo-noise synchronization and carrier synchronization for QPSK or OQPSK modulated CDMA system
US7062002B1 (en) * 1999-04-29 2006-06-13 Siemens Aktiengesellschaft Method for synchronizing a base station with a mobile station, a base station and a mobile station
DE19928019B4 (de) * 1999-06-18 2004-02-19 Alcatel Empfangseinrichtung für ein synchrones Mehrpunkt-zu-Punkt CDMA Netzwerk
CA2276971A1 (en) * 1999-07-06 2001-01-06 Wen Tong Preamble using golay sequence for access channel in cellular communications systems
CN1178433C (zh) * 1999-09-16 2004-12-01 皇家菲利浦电子有限公司 包括多个网络节点和至少一个星型节点的网络
US6628735B1 (en) 1999-12-22 2003-09-30 Thomson Licensing S.A. Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system
US6963602B1 (en) 2000-01-05 2005-11-08 Advanced Micro Devices, Inc. Digital correction method and system
US7173921B1 (en) 2000-10-11 2007-02-06 Aperto Networks, Inc. Protocol for allocating upstream slots over a link in a point-to-multipoint communication system
CN1140075C (zh) * 2000-12-18 2004-02-25 信息产业部电信传输研究所 基于多径能量窗的码分多址系统初始同步与小区搜索装置
CN1120591C (zh) * 2000-12-18 2003-09-03 信息产业部电信传输研究所 直接扩频/码分多址综合扩频相干接收装置
US7289460B1 (en) * 2002-06-14 2007-10-30 Lockheed Martin Corporation Satellite communications system
CN1306808C (zh) * 2003-02-14 2007-03-21 上海交通大学 数字地面广播传输中系统信息的扩展频谱传输方法
CN100393171C (zh) * 2005-05-10 2008-06-04 上海贝尔三星移动通信有限公司 一种码分多址移动通信系统中提高接通率的方法和设备
US8369428B2 (en) * 2007-02-09 2013-02-05 Nxp B.V. Method of synchronizing multi-carrier systems and multi-carrier system
EP2280491B1 (de) 2009-07-31 2012-07-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Schätzung einer Frequenzverschiebung und einer Zeitverschiebung
US8913566B1 (en) 2010-04-12 2014-12-16 Sprint Spectrum L.P. Using traffic channels to extend wireless coverage in poor pilot-signal conditions
US8576736B1 (en) 2010-11-10 2013-11-05 Sprint Spectrum L.P. Method and system for spread spectrum signal acquisition without a pilot signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579338A (en) * 1992-06-29 1996-11-26 Mitsubishi Denki Kabushiki Kaisha Spread spectrum receiver using partial correlations
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
US5566164A (en) * 1994-12-19 1996-10-15 Stanford Telecommunications, Inc. Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals

Also Published As

Publication number Publication date
ATE295031T1 (de) 2005-05-15
WO1997036396A1 (en) 1997-10-02
BR9708147A (pt) 1999-07-27
AU2533197A (en) 1997-10-17
DE69733195T2 (de) 2006-02-16
EP0878077A4 (de) 1999-05-19
EP0878077B1 (de) 2005-05-04
US5764630A (en) 1998-06-09
AU713299B2 (en) 1999-11-25
EP0878077A1 (de) 1998-11-18

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