SE9704509D0 - Variable rate CDMA spread circuit - Google Patents

Variable rate CDMA spread circuit

Info

Publication number
SE9704509D0
SE9704509D0 SE9704509A SE9704509A SE9704509D0 SE 9704509 D0 SE9704509 D0 SE 9704509D0 SE 9704509 A SE9704509 A SE 9704509A SE 9704509 A SE9704509 A SE 9704509A SE 9704509 D0 SE9704509 D0 SE 9704509D0
Authority
SE
Sweden
Prior art keywords
spread
variable rate
code
rate cdma
channels
Prior art date
Application number
SE9704509A
Other languages
English (en)
Other versions
SE528974C2 (sv
SE9704509L (sv
Inventor
Toshifumi Sato
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 SE9704509D0 publication Critical patent/SE9704509D0/sv
Publication of SE9704509L publication Critical patent/SE9704509L/sv
Publication of SE528974C2 publication Critical patent/SE528974C2/sv

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • 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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/264—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for data rate control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • 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
SE9704509A 1996-12-05 1997-12-04 CDMA-spridningskrets med variabel bithastighet SE528974C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32489796A JP2815007B2 (ja) 1996-12-05 1996-12-05 可変レートｃｄｍａ拡散回路

Publications (3)

Publication Number Publication Date
SE9704509D0 true SE9704509D0 (sv) 1997-12-04
SE9704509L SE9704509L (sv) 1998-06-06
SE528974C2 SE528974C2 (sv) 2007-03-27

Family

ID=18170856

Family Applications (5)

Application Number Title Priority Date Filing Date
SE9704509A SE528974C2 (sv) 1996-12-05 1997-12-04 CDMA-spridningskrets med variabel bithastighet
SE0301969A SE526529C2 (sv) 1996-12-05 2003-07-03 CDMA-spridningskrets med variabel hastighet
SE0501868A SE528101C2 (sv) 1996-12-05 2005-08-24 CDMA-spridningskrets med variabel rat
SE0601345A SE528994C2 (sv) 1996-12-05 2006-06-19 CDMA-spridningskrets med variabel bithastighet
SE0602563A SE532289C2 (sv) 1996-12-05 2006-11-30 CDMA-spridningskrets med variabel hastighet

Family Applications After (4)

Application Number Title Priority Date Filing Date
SE0301969A SE526529C2 (sv) 1996-12-05 2003-07-03 CDMA-spridningskrets med variabel hastighet
SE0501868A SE528101C2 (sv) 1996-12-05 2005-08-24 CDMA-spridningskrets med variabel rat
SE0601345A SE528994C2 (sv) 1996-12-05 2006-06-19 CDMA-spridningskrets med variabel bithastighet
SE0602563A SE532289C2 (sv) 1996-12-05 2006-11-30 CDMA-spridningskrets med variabel hastighet

Country Status (4)

Country Link
US (1) US6130884A (sv)
JP (1) JP2815007B2 (sv)
KR (1) KR100280954B1 (sv)
SE (5) SE528974C2 (sv)

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US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications 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
US6359874B1 (en) * 1998-05-21 2002-03-19 Ericsson Inc. Partially block-interleaved CDMA coding and decoding
KR100396507B1 (ko) * 1997-11-17 2003-12-24 삼성전자주식회사 멀티캐리어를사용하는통신시스템의순방향링크통신장치및그구현방법
EP0989696B1 (en) * 1998-05-07 2014-08-20 Ntt Docomo, Inc. Method of assignment and transmission of spread signals in direct sequence spread spectrum cdma mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system
FI981546A (sv) * 1998-07-03 2000-01-04 Nokia Networks Oy Förfarande för datakommunikation och mobiltelefonsystem
DE19832554C2 (de) * 1998-07-20 2000-06-21 Ericsson Telefon Ab L M Spreizvorrichtung für multiple Datenraten
FR2782428B1 (fr) * 1998-08-12 2000-09-15 Alsthom Cge Alcatel Dispositif permettant des facteurs d'etalement differents tout en preservant un code d'embrouillage commun, notamment pour systeme cellulaire de radiocommunications mobiles du type a acces multiple par repartition de codes
KR100300357B1 (ko) * 1998-08-28 2001-11-01 윤종용 이동통신시스템에서 직교부호 생성장치 및 방법
FI112425B (sv) * 1998-09-16 2003-11-28 Nokia Corp Förfarande och anordning för dynamisk kontrollering av radioresursser
US6711121B1 (en) * 1998-10-09 2004-03-23 At&T Corp. Orthogonal code division multiplexing for twisted pair channels
FR2784525B1 (fr) * 1998-10-12 2006-07-28 Cit Alcatel Procede d'allocation de codes orthogonaux dans un systeme de radiocommunications mobiles du type a acces multiple par repartition de codes utilisant des codes de longueur variable
KR100318950B1 (ko) * 1998-12-26 2001-12-29 윤종용 멀티코드 이동통신시스템에서 왜곡 보상장치 및 방법
KR100315709B1 (ko) * 1998-12-29 2002-02-28 윤종용 이동통신시스템의채널확산장치및방법
JP2000216700A (ja) 1999-01-20 2000-08-04 Nec Corp Ｃｄｍａ受信装置およびｃｄｍａ受信方法、並びに記録媒体
US7443906B1 (en) 1999-05-31 2008-10-28 Electronics And Telecommunications Research Institute Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system
KR100396653B1 (ko) * 1999-12-30 2003-09-02 엘지전자 주식회사 다중 칩 레이트를 위한 이동 통신 시스템의 전송 방법
JP3565102B2 (ja) 1999-08-13 2004-09-15 日本電気株式会社 下り回線拡散符号割り当て方法及び基地局
KR100429545B1 (ko) * 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
KR100465902B1 (ko) * 2000-02-02 2005-01-13 엔티티 도꼬모 인코퍼레이티드 단일반송파/ｄｓ-ｃｄｍａ 패킷 전송방법
KR100698107B1 (ko) * 2000-03-22 2007-03-26 엘지전자 주식회사 공통 패킷 채널의 전송 장치 및 방법
US6847622B1 (en) * 2000-11-15 2005-01-25 Motorola, Inc. Methods and apparatus for providing multiple wireless communication services having different bit rates
JP2002335228A (ja) * 2001-05-08 2002-11-22 Sony Corp インパルス信号列を用いる無線通信システム、無線送信装置、無線受信装置、無線通信方法、無線送信方法、無線受信方法
DE60110083T2 (de) * 2001-10-10 2005-09-08 Matsushita Electric Industrial Co., Ltd., Kadoma Dekorrelation von interferenzen von mehreren verschachtelten Datenströmen
US7197007B2 (en) * 2002-05-11 2007-03-27 Accton Technology Corporation Method for generating 2D OVSF codes in multicarrier DS-CDMA systems
US7346038B2 (en) * 2002-05-11 2008-03-18 Accton Technology Corporation Method for generating 2D OVSF codes in multicarrier DS-CDMA systems
JP3643366B2 (ja) 2003-07-10 2005-04-27 松下電器産業株式会社 Ｃｄｍａ送信装置及びｃｄｍａ受信装置
JP2005303928A (ja) * 2004-04-15 2005-10-27 Fujitsu Ltd 分割加算式マッチトフィルタシステム
KR100594943B1 (ko) * 2004-11-30 2006-06-30 리전츠 오브 더 유니버스티 오브 미네소타 원칩시스템에서 데이터 변복조 방법
CN102299886B (zh) 2004-12-23 2017-09-12 韩国电子通信研究院 用于在无线通信系统中生成和发送帧的装置及方法
US20060209970A1 (en) * 2005-01-11 2006-09-21 Emmanuel Kanterakis Adaptive transmission rate communication system

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US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH06237214A (ja) * 1993-02-10 1994-08-23 Matsushita Electric Ind Co Ltd 移動通信システム
CA2127616C (en) * 1993-07-16 1999-02-09 Osamu Kato Mobile communication unit
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
JP3003839B2 (ja) * 1993-11-08 2000-01-31 エヌ・ティ・ティ移動通信網株式会社 Ｃｄｍａ通信方法および装置
JP2636712B2 (ja) * 1993-12-08 1997-07-30 日本電気株式会社 移動通信装置
US5442625A (en) * 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5987014A (en) * 1994-07-14 1999-11-16 Stanford Telecommunications, Inc. Multipath resistant, orthogonal code-division multiple access system
KR100220140B1 (ko) * 1994-12-28 1999-09-01 다치카와 게이지 씨디엠에이 전송 시스템의 확산 스펙트럼 코드를 초기 동기시키 기 위한 장치 및 방법
JPH0918450A (ja) * 1995-06-27 1997-01-17 Sony Corp 符号分割多重化送信装置
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JPH1022874A (ja) * 1996-07-09 1998-01-23 Hitachi Ltd Ｃｄｍａ通信システムおよび通信方法

Also Published As

Publication number Publication date
SE528101C2 (sv) 2006-09-05
SE528974C2 (sv) 2007-03-27
JP2815007B2 (ja) 1998-10-27
SE532289C2 (sv) 2009-12-01
SE0602563L (sv) 2006-11-30
SE528994C2 (sv) 2007-04-03
JPH10164009A (ja) 1998-06-19
SE0601345L (sv) 2006-06-19
KR19980063819A (ko) 1998-10-07
KR100280954B1 (ko) 2001-02-01
SE0501868L (sv) 2005-08-24
SE0301969D0 (sv) 2003-07-03
SE0301969L (sv) 2003-07-03
SE526529C2 (sv) 2005-10-04
SE9704509L (sv) 1998-06-06
US6130884A (en) 2000-10-10

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