[go: up one dir, main page]

BR9915856A - Transmissão de dados em um sistema de comunicação de espectro espalhado - Google Patents

Transmissão de dados em um sistema de comunicação de espectro espalhado

Info

Publication number
BR9915856A
BR9915856A BR9915856-6A BR9915856A BR9915856A BR 9915856 A BR9915856 A BR 9915856A BR 9915856 A BR9915856 A BR 9915856A BR 9915856 A BR9915856 A BR 9915856A
Authority
BR
Brazil
Prior art keywords
data
remote units
base station
spread spectrum
communication system
Prior art date
Application number
BR9915856-6A
Other languages
English (en)
Inventor
Kenneth A Felix
Amitava Grosh
Mark C Cudak
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of BR9915856A publication Critical patent/BR9915856A/pt

Links

Classifications

    • 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]
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

<B>TRANSMISSãO DE DADOS EM UM SISTEMA DE COMUNICAçãO DE ESPECTRO ESPALHADO<D> Unidades remotas (113) com grandes quantidades de dados a transmitir serão dinamicamente designadas códigos OVSF (Fator de Espalhamento de Variável Ortogonal) que correspondem a velocidades de dados mais altas e as unidades remotas (113) com quantidades mais baixas de dados a serem transmitidos serão designadas códigos OVSF que correspondem a velocidades de dados mais baixas. Adicionalmente, em uma versão alternativa da presente invenção, quando a interferência do sistema tornar-se maior do que um limite predeterminado, a velocidade de dados entre a estação base (100) e as unidades remotas (113) em comunicação com a estação base (100) é reduzida. A redução da velocidade de dados entre a estação base (100) e as unidades remotas (113) ocorre pela modificação dos códigos OVSF atuais utilizados tanto pelas unidades remotas (113) como pela estação base (100).
BR9915856-6A 1998-12-03 1999-12-02 Transmissão de dados em um sistema de comunicação de espectro espalhado BR9915856A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/204,702 US6233231B1 (en) 1998-12-03 1998-12-03 Data transmission within a spread-spectrum communication system
PCT/US1999/028540 WO2000033476A1 (en) 1998-12-03 1999-12-02 Data transmission within a spread-spectrum communication system

Publications (1)

Publication Number Publication Date
BR9915856A true BR9915856A (pt) 2001-08-21

Family

ID=22759072

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9915856-6A BR9915856A (pt) 1998-12-03 1999-12-02 Transmissão de dados em um sistema de comunicação de espectro espalhado

Country Status (4)

Country Link
US (1) US6233231B1 (pt)
EP (1) EP1135867A4 (pt)
BR (1) BR9915856A (pt)
WO (1) WO2000033476A1 (pt)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1051354A (ja) * 1996-05-30 1998-02-20 N T T Ido Tsushinmo Kk Ｄｓ−ｃｄｍａ伝送方法
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US9118387B2 (en) 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US6501745B1 (en) * 1998-02-13 2002-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Method for variable block scheduling indication by an uplink state flag in a packet data communication system
JP2878265B1 (ja) * 1998-03-16 1999-04-05 三菱電機株式会社 符号割当装置並びにその方法
DE69832589T2 (de) * 1998-05-15 2006-08-10 Sony Deutschland Gmbh Sender und Übertragungsverfahren, die die Flexibilität der Zuordnung von Koden erhöhen
FI107866B (fi) * 1999-02-19 2001-10-15 Nokia Networks Oy Koodin allokointi pehmeän solunvaihdon yhteydessä CDMA-järjestelmässä
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
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
US6744808B1 (en) * 1999-06-03 2004-06-01 Skyworks Solutions, Inc. Techniques to increase data transmission rate of spread spectrum communications systems
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
US6804211B1 (en) * 1999-08-03 2004-10-12 Wi-Lan Inc. Frame structure for an adaptive modulation wireless communication system
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
US6621804B1 (en) 1999-10-07 2003-09-16 Qualcomm Incorporated Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel
EP1100215A1 (en) * 1999-11-09 2001-05-16 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Method, apparatus and computer program for code allocation for variable data rates in a CDMA system
US6747969B1 (en) * 1999-11-23 2004-06-08 Olaf Hirsch Transmission gap interference measurement
US6741577B1 (en) * 1999-11-29 2004-05-25 Koninklijke Philips Electronics N.V. Inter-frequency handover in wireless CDMA systems
CA2360367C (en) * 1999-12-02 2007-02-06 Yu-Suk Yun Apparatus and method for transmitting and receiving data in a cdma communication system
KR100354337B1 (ko) * 1999-12-04 2002-09-28 한국과학기술원 대역 확산 통신 방식에서의 확산 변조 방식을 이용한송수신방식 및 송수신장치
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
EP1117184A1 (en) * 2000-01-17 2001-07-18 Matsushita Electric Industrial Co., Ltd. Method and apparatus for a CDMA cellular radio transmission system
DE10003734A1 (de) * 2000-01-28 2001-08-02 Bosch Gmbh Robert Detektionsverfahren und -vorrichtung
US7126982B1 (en) * 2000-07-21 2006-10-24 L-3 Communications Corporation Apparatus for rapid PN code acquistion
IT1320651B1 (it) * 2000-09-15 2003-12-10 St Microelectronics Srl Procedimento e dispositivo per la generazione di codici, ad esempiocodici per applicazioni cdma.
US6704571B1 (en) * 2000-10-17 2004-03-09 Cisco Technology, Inc. Reducing data loss during cell handoffs
US6973098B1 (en) 2000-10-25 2005-12-06 Qualcomm, Incorporated Method and apparatus for determining a data rate in a high rate packet data wireless communications system
US7068683B1 (en) * 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
CA2853156C (en) * 2000-11-15 2015-03-24 Wi-Lan, Inc. Improved frame structure for a communication system using adaptive modulation
FR2821515B1 (fr) * 2001-02-23 2003-05-23 Cit Alcatel Procede de gestion de ressources de traitement dans un systeme de radiocommunications mobiles
US8009667B1 (en) 2001-01-16 2011-08-30 Wi—LAN, Inc. Packing source data packets into transporting packets with fragmentation
KR100663524B1 (ko) * 2001-01-17 2007-01-02 삼성전자주식회사 이동통신 시스템에서 월시 코드를 사용하여 패킷 데이터를전송하기 위한 장치 및 방법
EP1227601A1 (en) * 2001-01-25 2002-07-31 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Downlink scheduling using parallel code trees
US7012886B2 (en) * 2001-05-16 2006-03-14 Lucent Technologies Inc. Walsh code allocation/de-allocation system
GB2382275B (en) * 2001-08-11 2004-06-09 Samsung Electronics Co Ltd Method for transmitting/receiving orthogonal variable spreading factor codes in a communication system
US6552996B2 (en) * 2001-09-18 2003-04-22 Interdigital Communications Corporation OVSF code system and methods
KR100424628B1 (ko) * 2001-12-12 2004-03-24 삼성전자주식회사 이동통신시스템에서 확산부호 생성장치 및 방법
US7068615B2 (en) * 2002-01-09 2006-06-27 The Boeing Company Adaptable forward link data rates in communications systems for mobile platforms
KR20030071957A (ko) * 2002-03-04 2003-09-13 삼성전자주식회사 고속 순방향 패킷 접속 통신 시스템에서 사용자 데이터에할당되는 직교 코드 정보를 송수신하는 방법
US7324436B2 (en) * 2002-04-30 2008-01-29 Lg Electronics Inc. Determining useable combinations of variables for transmitting a subpacket of an encoder packet
KR100878805B1 (ko) * 2002-04-30 2009-01-14 엘지전자 주식회사 부패킷 전송 변수 결정 방법
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
US7539165B2 (en) * 2002-05-24 2009-05-26 Antti Toskala Method and apparatus for distributed signaling for uplink rate control
WO2004010591A2 (en) * 2002-07-18 2004-01-29 Interdigital Technology Corporation Orthogonal variable spreading factor (ovsf) code assignment
KR100486530B1 (ko) * 2002-08-31 2005-05-03 엘지전자 주식회사 직교가변 확산계수 코드 생성 방법
US20040076170A1 (en) * 2002-10-18 2004-04-22 Nortel Networks Limited Orthogonal signaling for CDMA
US9143255B2 (en) * 2002-10-18 2015-09-22 Microsoft Technology Licensing, Llc Orthogonal signaling for CDMA
US7280581B2 (en) * 2003-05-12 2007-10-09 Lucent Technologies Inc. Method of adaptive Walsh code allocation
FR2855008B1 (fr) * 2003-05-12 2005-11-04 Nortel Networks Ltd Procede de controle d'allocation de codes orthogonaux a facteur d'etalement variable dans un reseau radio cellulaire, et equipements de controle pour la mise en oeuvre du procede.
US20050136844A1 (en) * 2003-12-09 2005-06-23 Giesberts Pieter-Paul S. Method and apparatus for automatic data rate control using channel correlation in a wireless communication system
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
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
US8855704B2 (en) * 2005-08-26 2014-10-07 Qualcomm Incorporated Fast cell selection in TD-CDMA (UMTS TDD)
CN1929352B (zh) * 2005-09-05 2010-12-29 北京信威通信技术股份有限公司 一种scdma系统中下行链路ovsf码的分配方法
US8130727B2 (en) * 2005-10-27 2012-03-06 Qualcomm Incorporated Quasi-orthogonal allocation of codes in TD-CDMA systems
US8068464B2 (en) * 2005-10-27 2011-11-29 Qualcomm Incorporated Varying scrambling/OVSF codes within a TD-CDMA slot to overcome jamming effect by a dominant interferer
US8688809B2 (en) 2006-09-07 2014-04-01 Airvana Lp Provisioning private access points for wireless networking
US8160629B2 (en) * 2006-09-07 2012-04-17 Airvana, Corp. Controlling reverse link interference in private access points for wireless networking
US8078165B2 (en) 2006-09-07 2011-12-13 Airvana, Corp. Configuring preferred user zone lists for private access points for wireless networking
KR100856390B1 (ko) * 2006-12-01 2008-09-04 한국전자통신연구원 하위 ｏｖｓｆ 코드 쌍을 이용한 확산/역확산 장치 및 그방법
US8229498B2 (en) 2006-12-28 2012-07-24 Airvana, Corp. Assigning code space to portable base stations
US8811200B2 (en) 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
EP2328074A1 (en) * 2009-11-27 2011-06-01 STMicroelectronics S.r.l. Queue management
EP2451104B1 (en) 2010-11-05 2017-06-28 Alcatel Lucent Network nodes and methods
US9113467B2 (en) * 2013-02-28 2015-08-18 Qualcomm Incorporated Adjusting initial transmit power for high speed data transmission

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499265A (en) * 1989-08-07 1996-03-12 Omnipoint Data Company, Incorporated Spread spectrum correlator
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5204874A (en) * 1991-08-28 1993-04-20 Motorola, Inc. Method and apparatus for using orthogonal coding in a communication system
FI96468C (fi) * 1994-05-11 1996-06-25 Nokia Mobile Phones Ltd Liikkuvan radioaseman kanavanvaihdon ohjaaminen ja lähetystehon säätäminen radiotietoliikennejärjestelmässä
US5537397A (en) * 1994-06-07 1996-07-16 Aloha Networks, Inc. Spread aloha CDMA data communications
US5603096A (en) * 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
US5594718A (en) * 1995-03-30 1997-01-14 Qualcomm Incorporated Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative access communication system
US5754537A (en) * 1996-03-08 1998-05-19 Telefonaktiebolaget L M Ericsson (Publ) Method and system for transmitting background noise data
US5745520A (en) * 1996-03-15 1998-04-28 Motorola, Inc. Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustment
US5903597A (en) * 1996-05-20 1999-05-11 Trimble Navigation Limited Suppression on multipath signal effects
US6034635A (en) * 1996-06-06 2000-03-07 Gilhousen; Klein S. Method for using only two base stations for determining the position of a mobile subscriber in a CDMA cellular telephone system
US5970413A (en) * 1996-06-06 1999-10-19 Qualcomm Incorporated Using a frequency that is unavailable for carrying telephone voice information traffic for determining the position of a mobile subscriber in a CDMA cellular telephone system
US5946344A (en) * 1997-04-07 1999-08-31 Intermec Ip Corp. Multiple-rate direct sequence architecture utilizing a fixed chipping rate and variable spreading code lengths
US6108369A (en) * 1997-07-11 2000-08-22 Telefonaktiebolaget Lm Ericsson Channelization code allocation for radio communication systems
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US5956368A (en) * 1997-08-29 1999-09-21 Telefonaktiebolaget Lm Ericsson Downlink channel handling within a spread spectrum communications system
US5956641A (en) * 1998-03-30 1999-09-21 Motorola, Inc. System and method for facilitating a handoff of at least one mobile unit in a telecommunication system

Also Published As

Publication number Publication date
US6233231B1 (en) 2001-05-15
EP1135867A4 (en) 2003-02-12
EP1135867A1 (en) 2001-09-26
WO2000033476A1 (en) 2000-06-08

Similar Documents

Publication Publication Date Title
BR9915856A (pt) Transmissão de dados em um sistema de comunicação de espectro espalhado
BR9916802A (pt) Método de transmissão de dados dentro de um sistema de comunicação de espectro amplo
BRPI0407628A (pt) codificação de superposição controlada em sistemas de comunicação multi-usuário
BR0110760A (pt) Método para controle de potência em um sistema de rádio, parte de rede em um sistema de rádio, e, sistema de rádio
BR0317315A (pt) Sistema de comunicação, e, dispositivo e método de comunicação para receber e enviar dados pela modulação e demodulação de uma onda eletromagnética
US20080304833A1 (en) Illumination Light Wireless Communication System
BR0115214A (pt) Método e equipamento para controlar o nìvel de potência de sinal em um sistema de comunicação
BR112012031319A2 (pt) &#34;métodos e arranjos para reduzir a informação complementar de sinalização em um sistema de comunicação sem fio usando agregação de portadora&#34;
BR9801080A (pt) Processo e dispositivo para transmissão de informações através de linhas de abastecimento de corrente.
ATE548877T1 (de) Neuzuordnung von überschussleistung in drahtlosem kommunikationssystem
BRPI0510553A (pt) dispositivo, método e rede de comunicação sem fios
BR0215494A (pt) método e equipamento para um sistema de comunicação mimo-ofdm
BR9911341A (pt) Uma ou mais estações de rádio em um sistema de comunicações móvel de propagação de espectro de sequência direta, em um sistema de comunicações móvel de múltiplo acesso por divisão de código, processo em um sistema de comunicações de múltiplo acesso por divisão de código, gerador de códigos cdma proporcionando códigos de propagação cdma, processo em um sistema de comunicações móveis incluindo uma pluralidade de estações de rádio base, e, processo em um sistema de comunicações móvel incluindo uma estação base,
WO2003030423A1 (fr) Emetteur ofdm et procede d&#39;emission par modulation ofdm
ATE246416T1 (de) Datenübertragung über ein netzleitungsnachrichtenübertragungssystem
BR0209261A (pt) Método e dispositivo de comunicação para transmitir dados por uma pluralidade de canais de comunicação
CA2276611A1 (en) Increasing turbulent mixing in a uv system
BR9915416A (pt) Sistema de comunicação de espectro ampliado e método de controle de sobrecarga para o mesmo
BR0316978A (pt) Controle adaptativo de procedimentos de transmissão
BR0007876A (pt) Aparelho e método para difusão de dados de canal em sistema de comunicação cdma usando variedade de transmissão ortogonal
DE60040919D1 (de) Mehrträgersystem mit dynamischer umschaltung zwischen aktiven anwendungssätzen
BR9906495A (pt) Processo de acesso de canal para uma estação base em um sistema de comunicação móvel
BR9907048A (pt) Processo para operar um sistema de radiocomunicação, transmissor para transmitir sinais ortogonais, sistema de radiocomunicação, e, sinal de rádio
BR0213283A (pt) Método de transmissão
BR0312950A (pt) Sistemas de diversidade de transmissão

Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025987-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO.

B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 15A ANUIDADE.

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 2282 DE 30/09/2014.

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)