DE69925656D1 - Spreizspektrumkommunikationssystem unter Verwendung von einem einzigen Spreizcode - Google Patents

Spreizspektrumkommunikationssystem unter Verwendung von einem einzigen Spreizcode

Info

Publication number
DE69925656D1
DE69925656D1 DE69925656T DE69925656T DE69925656D1 DE 69925656 D1 DE69925656 D1 DE 69925656D1 DE 69925656 T DE69925656 T DE 69925656T DE 69925656 T DE69925656 T DE 69925656T DE 69925656 D1 DE69925656 D1 DE 69925656D1
Authority
DE
Germany
Prior art keywords
communication system
spread spectrum
spreading code
spectrum communication
single spreading
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
DE69925656T
Other languages
English (en)
Other versions
DE69925656T2 (de
Inventor
Takayuki Kondo
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
Publication of DE69925656D1 publication Critical patent/DE69925656D1/de
Application granted granted Critical
Publication of DE69925656T2 publication Critical patent/DE69925656T2/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
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • 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
    • H04B1/7097—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
    • H04B2001/70706—Spread spectrum techniques using direct sequence modulation using a code tracking loop, e.g. a delay locked loop
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
DE69925656T 1998-03-04 1999-02-22 Spreizspektrumkommunikationssystem unter Verwendung von einem einzigen Spreizcode Expired - Lifetime DE69925656T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10052292A JP2894340B1 (ja) 1998-03-04 1998-03-04 スペクトラム拡散通信方式
JP5229298 1998-03-04

Publications (2)

Publication Number Publication Date
DE69925656D1 true DE69925656D1 (de) 2005-07-14
DE69925656T2 DE69925656T2 (de) 2006-05-11

Family

ID=12910738

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69925656T Expired - Lifetime DE69925656T2 (de) 1998-03-04 1999-02-22 Spreizspektrumkommunikationssystem unter Verwendung von einem einzigen Spreizcode

Country Status (8)

Country Link
US (2) US6480523B1 (de)
EP (3) EP2375574A1 (de)
JP (1) JP2894340B1 (de)
KR (1) KR100298975B1 (de)
CN (2) CN1321505C (de)
BR (1) BRPI9900670B1 (de)
DE (1) DE69925656T2 (de)
HK (1) HK1062969A1 (de)

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JP2894340B1 (ja) * 1998-03-04 1999-05-24 日本電気株式会社 スペクトラム拡散通信方式
US6765894B1 (en) * 1999-07-05 2004-07-20 Matsushita Electric Industrial Co, Ltd. Communication terminal apparatus and base station apparatus
US7065125B1 (en) * 1999-08-13 2006-06-20 Viasat, Inc. Method and apparatus for multiple access over a communication channel
US20070127553A1 (en) * 1999-08-13 2007-06-07 Viasat, Inc. Code Reuse Multiple Access For Satellite Return Link
KR20010020093A (ko) * 1999-08-14 2001-03-15 박기업 무선 이동통신에서 파일럿 채널을 슬롯으로 구분하는 시스템
JP3279547B2 (ja) * 1999-09-20 2002-04-30 日本電気株式会社 Ｃｄｍａ受信機の同期捕捉装置
US7068623B1 (en) * 2000-01-10 2006-06-27 Nortel Networks Limited Communicating traffic over a wireless channel in a mobile communications system
JP2001223611A (ja) 2000-02-10 2001-08-17 Matsushita Electric Ind Co Ltd 受信装置
DE60010426T2 (de) 2000-03-20 2004-09-16 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren zum Übertragung eines Wortes, das Informationen in Bezug auf Spreizcodes darstellt, die jeweils Funktelefonen zugeteilt sind, die in Kommunikation mit einer Basisstation eines Mobilfunk-Telekommunikationssystem sind
WO2001073992A1 (fr) * 2000-03-27 2001-10-04 Fujitsu Limited Recepteur multi-utilisateur et systeme de communication pour transmission multicode
DE60040934D1 (de) * 2000-04-04 2009-01-08 Mitsubishi Electric Inf Tech Basisstation zur Übertragung eines Wortes, das für die Anzahl der Spreizkodes repräsentativ ist, die den mobilen Stationen in Kommunikation mit der Basisstation zugeteilt sind
JP2001326584A (ja) 2000-05-18 2001-11-22 Nec Corp パス検出方式と受信装置
JP3670555B2 (ja) * 2000-05-24 2005-07-13 株式会社エヌ・ティ・ティ・ドコモ 無線通信装置及び無線通信方法
JP2002026767A (ja) * 2000-07-04 2002-01-25 Nec Corp Ｃｄｍａ受信装置及びパス検出方法
JP2002026768A (ja) * 2000-07-07 2002-01-25 Nec Corp 通信装置
JP3676986B2 (ja) * 2001-03-29 2005-07-27 松下電器産業株式会社 無線受信装置及び無線受信方法
US8018903B2 (en) * 2001-11-21 2011-09-13 Texas Instruments Incorporated Closed-loop transmit diversity scheme in frequency selective multipath channels
CN1698332B (zh) * 2003-03-03 2010-04-28 三菱电机株式会社 用于捕获一个接收到的脉冲无线电信号的方法和系统
CN105577344B (zh) 2003-08-12 2019-03-08 知识产权之桥一号有限责任公司 接收装置、终端装置、接收方法以及集成电路
KR100594111B1 (ko) * 2004-03-12 2006-06-30 삼성전자주식회사 주파수 밴드별 다중 코딩을 사용하는 광대역 무선 접속시스템에서 데이터 전송 방법 및 시스템
US7453855B1 (en) * 2005-12-08 2008-11-18 Meru Networks Multiuser detection and interference suppression techniques for direct sequence spread spectrum systems in which all users employ same spreading code
US7633995B1 (en) * 2006-02-10 2009-12-15 L-3 Communications, Corp. System and method for receiving spread spectrum encoded bursts using a common spreading code
US7639985B2 (en) * 2006-03-02 2009-12-29 Pc-Tel, Inc. Use of SCH bursts for co-channel interference measurements
US20110164526A1 (en) * 2008-09-04 2011-07-07 Bando Chemical Industries Ltd Method and apparatus for uplink signal transmission and channel estimation in wireless access network
US8790406B1 (en) 2011-04-01 2014-07-29 William D. Smith Systems and methods for performing spine surgery
RU2520401C2 (ru) * 2012-10-04 2014-06-27 Межрегиональное общественное учреждение "Институт инженерной физики" Способ повышения скрытности радиоизлучающего средства в радиолинии с ппрч
US9980314B2 (en) * 2013-09-24 2018-05-22 Zte Wistron Telecom Ab Method and apparatus for irregular signal transmission in a system with reception gaps
TWI651009B (zh) 2014-02-26 2019-02-11 日商新力股份有限公司 送訊裝置、收訊裝置及資訊處理方法

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JPS56102143A (en) 1980-01-19 1981-08-15 Matsushita Electric Ind Co Ltd Spectrum diffusion communication system
JPS59500603A (ja) 1982-04-06 1984-04-12 バクスタ−、インターナショナル、インコ−ポレイテッド 液体−粉末混合のための分離包装および無菌加工
JPS5950603A (ja) 1982-09-17 1984-03-23 Nec Corp 送信信号方式
JPS63202144A (ja) 1987-02-17 1988-08-22 Mitsubishi Electric Corp 自動車電話方式
JPH0239139A (ja) 1988-07-29 1990-02-08 Fuji Photo Film Co Ltd 複写装置
US4969159A (en) * 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
US5659569A (en) 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
US5568483A (en) 1990-06-25 1996-10-22 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH05227124A (ja) * 1992-02-10 1993-09-03 Sharp Corp 符号分割多元アクセス通信方式
JP3036204B2 (ja) * 1992-02-12 2000-04-24 日本電気株式会社 光同期伝送方式
JPH06152564A (ja) 1992-11-04 1994-05-31 Clarion Co Ltd スペクトラム拡散通信装置
JP2508587B2 (ja) 1993-06-14 1996-06-19 日本電気株式会社 スペクトル拡散受信装置
JP2802582B2 (ja) 1994-01-31 1998-09-24 松下電器産業株式会社 Ｃｄｍａ／ｔｄｄ方式無線通信システムおよびｃｄｍａ／ｔｄｄ方式移動機およびｃｄｍａ／ｔｄｄ方式基地局およびｃｄｍａ／ｔｄｄ方式無線通信方法
US5559789A (en) 1994-01-31 1996-09-24 Matsushita Electric Industrial Co., Ltd. CDMA/TDD Radio Communication System
JPH07226710A (ja) 1994-02-16 1995-08-22 Matsushita Electric Ind Co Ltd Ｃｄｍａ／ｔｄｄ方式無線通信システム
JPH07231278A (ja) * 1994-02-18 1995-08-29 Fujitsu Ltd 直接拡散スペクトル拡散通信方式によるレイク受信機
JP3305877B2 (ja) * 1994-06-23 2002-07-24 株式会社東芝 スペクトラム拡散無線通信システムおよびこのシステムで使用される無線通信装置
US5724378A (en) 1994-12-13 1998-03-03 Nit Mobile Communications Network, Inc. CDMA multiuser receiver and method
JP2605648B2 (ja) * 1994-12-22 1997-04-30 日本電気株式会社 Ｓｓ受信機における逆拡散符号位相検出装置
US5691974A (en) * 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
US5764687A (en) 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
JP3200547B2 (ja) * 1995-09-11 2001-08-20 株式会社日立製作所 Ｃｄｍａ方式移動通信システム
CA2199098C (en) * 1996-03-06 2000-08-22 Takehiro Nakamura Cell selection scheme in cdma mobile communication system using spread codes and spread code phases
JP3459866B2 (ja) * 1997-04-22 2003-10-27 埼玉日本電気株式会社 符号分割多元接続方式の送信電力制御方法
JP2856249B2 (ja) * 1997-06-24 1999-02-10 日本電気株式会社 Ｃｄｍａ同期捕捉回路
US6307840B1 (en) 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in CDMA communication system
JP2894340B1 (ja) * 1998-03-04 1999-05-24 日本電気株式会社 スペクトラム拡散通信方式
EP0981207A1 (de) * 1998-06-30 2000-02-23 Lucent Technologies Inc. Pilotsymbolen

Also Published As

Publication number Publication date
JP2894340B1 (ja) 1999-05-24
EP0940926B1 (de) 2005-06-08
CN1235442A (zh) 1999-11-17
JPH11252044A (ja) 1999-09-17
BRPI9900670B1 (pt) 2017-05-30
CN1321505C (zh) 2007-06-13
EP0940926A3 (de) 2002-12-11
KR100298975B1 (ko) 2001-09-26
EP0940926A2 (de) 1999-09-08
EP1351406B1 (de) 2015-04-01
CN1113496C (zh) 2003-07-02
EP1351406A1 (de) 2003-10-08
US6480523B1 (en) 2002-11-12
DE69925656T2 (de) 2006-05-11
US20030112852A1 (en) 2003-06-19
CN1492612A (zh) 2004-04-28
KR19990077586A (ko) 1999-10-25
US6827483B2 (en) 2004-12-07
BR9900670A (pt) 2000-01-18
EP2375574A1 (de) 2011-10-12
HK1062969A1 (en) 2004-12-03

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Legal Events

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8364 No opposition during term of opposition