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BR9810998A - Transmissor e processo para alocar códigos de espalhamento a uma pluralidade de canais fìsicos - Google Patents

Transmissor e processo para alocar códigos de espalhamento a uma pluralidade de canais fìsicos

Info

Publication number
BR9810998A
BR9810998A BR9810998-7A BR9810998A BR9810998A BR 9810998 A BR9810998 A BR 9810998A BR 9810998 A BR9810998 A BR 9810998A BR 9810998 A BR9810998 A BR 9810998A
Authority
BR
Brazil
Prior art keywords
physical channels
transmitter
spreading codes
allocating
branches
Prior art date
Application number
BR9810998-7A
Other languages
English (en)
Inventor
Fredrik Ovesj
Erik Dahlman
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9810998A publication Critical patent/BR9810998A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • 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]
    • H04B7/2637—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 logical channel control
    • 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
    • H04J13/0077—Multicode, e.g. multiple codes assigned to one user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • 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
    • H04J13/20—Allocation of orthogonal codes having an orthogonal variable spreading factor [OVSF]

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)

Abstract

"TRANSMISSOR E PROCESSO PARA ALOCAR CóDIGOS DE ESPALHAMENTO A UMA PLURALIDADE DE CANAIS FìSICOS" Fatores de espalhamento variáveis e transmissões multicódigo são flexivelmente acomodadas pelo alocar códigos de espalhamento de acordo com as técnicas descritas. Os códigos de espalhamento são alocados de modo que o canal de controle seja ortogonal a todos canais físicos no sinal de espectro de espalhamento compósito. Balanceamento de potência entre as ramificações em-fase (I) e quadratura (Q) no transmissor é também proporcionado pelo alocar canais físicos a ramificações apropriadas e dividir canais físicos, onde necessário.
BR9810998-7A 1997-07-11 1998-07-03 Transmissor e processo para alocar códigos de espalhamento a uma pluralidade de canais fìsicos BR9810998A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/890,793 US6108369A (en) 1997-07-11 1997-07-11 Channelization code allocation for radio communication systems
PCT/SE1998/001317 WO1999003224A1 (en) 1997-07-11 1998-07-03 Channelization code allocation for radio communication systems

Publications (1)

Publication Number Publication Date
BR9810998A true BR9810998A (pt) 2000-08-08

Family

ID=25397150

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810998-7A BR9810998A (pt) 1997-07-11 1998-07-03 Transmissor e processo para alocar códigos de espalhamento a uma pluralidade de canais fìsicos

Country Status (13)

Country Link
US (1) US6108369A (pt)
EP (1) EP0995284A1 (pt)
JP (1) JP2001510297A (pt)
KR (1) KR20010021660A (pt)
CN (1) CN1269933A (pt)
AR (1) AR016313A1 (pt)
AU (1) AU742336B2 (pt)
BR (1) BR9810998A (pt)
CA (1) CA2295813A1 (pt)
RU (1) RU2197787C2 (pt)
TW (1) TW387177B (pt)
WO (1) WO1999003224A1 (pt)
ZA (1) ZA985930B (pt)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6723063B1 (en) * 1998-06-29 2004-04-20 Ekos Corporation Sheath for use with an ultrasound element
KR100269593B1 (ko) 1997-12-02 2000-10-16 정선종 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
US7301983B1 (en) * 1998-01-05 2007-11-27 Intel Corporation Method for using codebook indexing to achieve high bit densities in a direct-sequence CDMA spread spectrum communication system
KR100381012B1 (ko) 1998-05-04 2003-08-19 한국전자통신연구원 부호분할 다중접속 방식에서 상향 공통 채널의 임의 접속 장치및 방법
DE69832589T2 (de) * 1998-05-15 2006-08-10 Sony Deutschland Gmbh Sender und Übertragungsverfahren, die die Flexibilität der Zuordnung von Koden erhöhen
US6393047B1 (en) * 1998-06-16 2002-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Quadriphase spreading codes in code division multiple access communications
FI981546L (fi) * 1998-07-03 2000-01-04 Nokia Networks Oy Tiedonsiirtomenetelmä ja matkapuhelinjärjestelmä
FI106896B (fi) * 1998-07-22 2001-04-30 Nokia Networks Oy Tiedonsiirtomenetelmä, radioverkkoalijärjestelmä ja tilaajapäätelaite
US6337876B1 (en) * 1998-08-26 2002-01-08 Telefonaktiebolaget Lm Ericsson (Publ) Control of power ratios for in-phase and quadrature channels in a communications system
US6667961B1 (en) * 1998-09-26 2003-12-23 Samsung Electronics Co., Ltd. Device and method for implementing handoff in mobile communication system
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
US6091759A (en) * 1998-11-24 2000-07-18 Motorola, Inc. Method and apparatus for spreading and despreading data in a spread-spectrum communication system
US6233231B1 (en) * 1998-12-03 2001-05-15 Motorola, Inc. Data transmission within a spread-spectrum communication system
US6526065B1 (en) * 1999-01-21 2003-02-25 Industrial Technology Research Institute Code management system and method for CDMA communication networks
KR100526537B1 (ko) 1999-02-13 2005-11-08 삼성전자주식회사 가변 데이터레이트의 채널 구조를 가지는 부호분할다중접속 통신시스템의 직교부호 할당 방법 및 그에 따른 장치
FI107866B (fi) 1999-02-19 2001-10-15 Nokia Networks Oy Koodin allokointi pehmeän solunvaihdon yhteydessä CDMA-järjestelmässä
EP1035677A1 (en) * 1999-03-10 2000-09-13 Lucent Technologies Inc. Code branch allocation for CDMA systems
US6693952B1 (en) * 1999-03-16 2004-02-17 Lucent Technologies Inc. Dynamic code allocation for downlink shared channels
US6400755B1 (en) * 1999-04-23 2002-06-04 Motorola, Inc. Data transmission within a spread-spectrum communication system
GB2350267B (en) * 1999-05-17 2003-09-24 Fujitsu Ltd Processing of codes in CDMA communications networks
CN1148989C (zh) * 1999-05-31 2004-05-05 韩国电子通信研究院 使用正交可变扩展系数码来调制数据消息的装置和方法
GB2351422A (en) * 1999-06-25 2000-12-27 Roke Manor Research Association of a training code to a channelisation code in a mobile telecommunications system
AU752300B2 (en) * 1999-07-07 2002-09-12 Samsung Electronics Co., Ltd. Apparatus and method for generating scrambling code in UMTS mobile communication system
US6885691B1 (en) * 1999-08-02 2005-04-26 Lg Information & Communications, Ltd. Scrambling codes and channelization codes for multiple chip rate signals in CDMA cellular mobile radio communication system
DE69908125T2 (de) 1999-09-13 2003-12-04 Mitsubishi Electric Information Technology Centre Europe B.V., Schiphol Rijk Zuweisung von Spreizfolgen in einem MCCDMA-System
AU5993199A (en) * 1999-09-29 2001-04-30 Nokia Mobile Phones Limited Spread spectrum communication system
DE19947019A1 (de) * 1999-09-30 2001-06-07 Infineon Technologies Ag Verfahren und Vorrichtung zum Erzeugen von spreizcodierten Signalen
EP1093243A1 (en) * 1999-10-11 2001-04-18 Alcatel Allocation of resources in a CDMA cell
FR2801450B1 (fr) * 1999-11-24 2001-12-28 Mitsubishi Electric France Procede de multiplexage de canaux de transport en positions flexibles, application et dispositif correspondants
US6532250B1 (en) * 1999-12-21 2003-03-11 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for spreading and despreading information signals in code division multiple access communications systems
US6501744B1 (en) 1999-12-22 2002-12-31 Koninklijke Philips Electronics N.V. Slotted mode in wireless CDMA systems
US6577671B1 (en) * 1999-12-29 2003-06-10 Nokia Mobile Phones Limited Enhanced code allocation method for CDMA systems
CA2397052A1 (en) 2000-01-17 2001-07-26 Sung-Ho Choi Apparatus and method for allocating channel using ovsf code for uplink synchronous transmission scheme in a w-cdma communication system
US6680902B1 (en) * 2000-01-20 2004-01-20 Nortel Networks Limited Spreading code selection process for equalization in CDMA communications systems
DE10003734A1 (de) * 2000-01-28 2001-08-02 Bosch Gmbh Robert Detektionsverfahren und -vorrichtung
JP2001223670A (ja) 2000-02-09 2001-08-17 Nec Corp 拡散符号生成器及びそれを用いるｃｄｍａ通信装置並びにそれらに用いる拡散符号生成方法
US6917642B1 (en) * 2000-02-23 2005-07-12 Ipr Licensing, Inc. Method for using a non-orthogonal pilot signal with data channel interference cancellation
FR2805688A1 (fr) * 2000-02-28 2001-08-31 Mitsubishi Electric France Procede d'equilibrage de canaux de transport au sein d'un canal composite, dispositif et station de base correspondants
KR100698107B1 (ko) * 2000-03-22 2007-03-26 엘지전자 주식회사 공통 패킷 채널의 전송 장치 및 방법
JP3485860B2 (ja) * 2000-03-27 2004-01-13 松下電器産業株式会社 基地局装置及び無線通信方法
JP2001285927A (ja) * 2000-03-29 2001-10-12 Matsushita Electric Ind Co Ltd 通信端末装置及び無線通信方法
JP2001358613A (ja) * 2000-06-14 2001-12-26 Fujitsu Ltd Ｃｄｍａ受信装置
US7111163B1 (en) 2000-07-10 2006-09-19 Alterwan, Inc. Wide area network using internet with quality of service
EP1189379A1 (en) * 2000-09-14 2002-03-20 Alcatel Method and system for enhancing channel capacity in a point to multipoint radio communications system
US7099372B2 (en) * 2000-10-27 2006-08-29 L-3 Communications Corporation Spreading code hopping for synchronous DS-CDMA system to mitigate interference effects
CN1150708C (zh) * 2000-11-21 2004-05-19 华为技术有限公司 一种提高码分多址蜂窝移动通信系统信道利用率的方法
US6853646B2 (en) * 2001-05-02 2005-02-08 Ipr Licensing, Inc. Fast switching of forward link in wireless system
US7012886B2 (en) * 2001-05-16 2006-03-14 Lucent Technologies Inc. Walsh code allocation/de-allocation system
KR100424538B1 (ko) * 2001-05-29 2004-03-27 엘지전자 주식회사 이동통신시스템에서의 스크램블링 코드 생성 장치 및 방법
US20020191566A1 (en) * 2001-06-07 2002-12-19 Eliezer Fogel Method of cellular communication
KR20020093542A (ko) * 2001-06-09 2002-12-16 주식회사 하이닉스반도체 무선통신시스템에서의 채널화 코드 할당 방법
US6552996B2 (en) 2001-09-18 2003-04-22 Interdigital Communications Corporation OVSF code system and methods
US7020176B2 (en) * 2001-10-30 2006-03-28 Samsung Electronics Co., Ltd. Method and system for downlink channelization code allocation in a UMTS
US7054294B2 (en) * 2001-11-29 2006-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Orthogonal variable spreading code (OVSF) allocation telecommunications network
KR100438089B1 (ko) * 2001-12-27 2004-07-02 엘지전자 주식회사 상향동기전송방식에서의 직교가변확산율 부호의 할당 방법
CN100446446C (zh) 2002-01-29 2008-12-24 三菱电机株式会社 Iq复用装置和iq复用方法
US8699505B2 (en) 2002-05-31 2014-04-15 Qualcomm Incorporated Dynamic channelization code allocation
EP1523809A1 (en) * 2002-06-06 2005-04-20 Nokia Corporation System and method for optimized utilization of code resource in communication networks
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
KR101022066B1 (ko) * 2003-05-17 2011-03-17 엘지전자 주식회사 이동통신 시스템에서의 하향링크 제어채널 구조 및 이를이용한 시간-코드 할당방법
US7301985B1 (en) 2003-06-30 2007-11-27 L-3 Communications Corporation Pseudo-noise code hopping method and apparatus
CN100474801C (zh) * 2003-11-07 2009-04-01 上海贝尔阿尔卡特股份有限公司 一种正交频分复用系统中的空闲模式控制方法
US8072942B2 (en) 2003-11-26 2011-12-06 Qualcomm Incorporated Code channel management in a wireless communications system
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7376117B2 (en) * 2003-12-02 2008-05-20 Infineon Technologies Ag Interleaving circuit for a multiband OFDM transceiver
US7512185B2 (en) * 2004-03-08 2009-03-31 Infineon Technologies Ag Dual carrier modulator for a multiband OFDM UWB transceiver
EP1610480A1 (en) * 2004-06-25 2005-12-28 Mitsubishi Electric Information Technology Center Europe B.V. Device and method of dynamically assigning subgroups of spreading sequences
CN100370707C (zh) * 2004-11-05 2008-02-20 华为技术有限公司 增强型上行专用物理信道功率控制方法及装置
PL2363987T3 (pl) 2004-12-23 2014-03-31 Electronics & Telecommunications Res Inst Urządzenie do nadawania i odbierania danych do zapewnienia szybkiej komunikacji danych oraz stosowny sposób
US20060209970A1 (en) * 2005-01-11 2006-09-21 Emmanuel Kanterakis Adaptive transmission rate communication system
KR101041814B1 (ko) 2005-02-15 2011-06-17 엘지전자 주식회사 무선 이동통신 시스템에서 점대다 멀티미디어 서비스 제공방법
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US7729235B2 (en) * 2005-09-27 2010-06-01 Mediatek Inc. Method and apparatus for OVSF code generation
US8605579B2 (en) 2005-10-17 2013-12-10 Qualcomm Incorporated Method and apparatus for flow control of data in a mesh network
AR067299A1 (es) * 2007-03-30 2009-10-07 Interdigital Tech Corp Control de potencia en sub-canales ortogonales en sistemas de comunicaciones inalambricas
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
US7639726B1 (en) * 2009-03-20 2009-12-29 On-Ramp Wireless, Inc. Downlink communication
RU2553083C1 (ru) * 2014-01-30 2015-06-10 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования Военная академия Ракетных войск стратегического назначения имени Петра Великого МО РФ Многоканальный передатчик спектрально-эффективной системы радиосвязи
US9860882B2 (en) * 2015-11-02 2018-01-02 Link Labs, Inc. Variable downlink-uplink boundary

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
KR960003102B1 (ko) * 1993-12-01 1996-03-04 재단법인 한국전자통신연구소 씨.디.엠.에이(cdma) 이동통신 기지국 변조장치의 채널 변조회로 및 그를 이용한 변조장치
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector
US5559788A (en) * 1994-12-29 1996-09-24 Unisys Corporation Multiple channel quadrature communication system and method
US5920552A (en) * 1996-05-30 1999-07-06 Lucent Technologies, Inc. Variable rate coding for wireless applications

Also Published As

Publication number Publication date
AR016313A1 (es) 2001-07-04
TW387177B (en) 2000-04-11
CA2295813A1 (en) 1999-01-21
ZA985930B (en) 1999-01-27
KR20010021660A (ko) 2001-03-15
US6108369A (en) 2000-08-22
AU742336B2 (en) 2001-12-20
WO1999003224A1 (en) 1999-01-21
JP2001510297A (ja) 2001-07-31
CN1269933A (zh) 2000-10-11
EP0995284A1 (en) 2000-04-26
RU2197787C2 (ru) 2003-01-27
AU8364098A (en) 1999-02-08

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A, 7A,8A E 9A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1909 DE 07/08/2007.

B15K Others concerning applications: alteration of classification

Ipc: H04J 13/00 (2011.01), H04B 7/26 (2006.0