BR9904846A - Dispositivo e processo de comunicação de canal para um sistema de comunicação de múltiplo acesso por divisão de código e dispositivo de recepção de canal para uma estação móvel e um sistema de comunicação de múltiplo acesso por divisão de código - Google Patents

Dispositivo e processo de comunicação de canal para um sistema de comunicação de múltiplo acesso por divisão de código e dispositivo de recepção de canal para uma estação móvel e um sistema de comunicação de múltiplo acesso por divisão de código

Info

Publication number
BR9904846A
BR9904846A BR9904846A BR9904846A BR9904846A BR 9904846 A BR9904846 A BR 9904846A BR 9904846 A BR9904846 A BR 9904846A BR 9904846 A BR9904846 A BR 9904846A BR 9904846 A BR9904846 A BR 9904846A
Authority
BR
Brazil
Prior art keywords
channel
communication system
orthogonal code
multiple access
code division
Prior art date
Application number
BR9904846A
Other languages
English (en)
Inventor
Seung Hyun Kong
Young Ky Kim
Jae Min Ahn
Soon Young Yoon
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BR9904846A publication Critical patent/BR9904846A/pt

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
    • 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
    • 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
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2646—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for broadband transmission
    • 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
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

Abstract

''DISPOSITIVO E PROCESSO DE COMUNICAçãO DE CANAL PARA UM SISTEMA DE COMUNICAçãO DE MúLTIPLO ACESSO POR DIVISãO DE CóDIGO E DISPOSITIVO DE RECEPçãO DE CANAL PARA UMA ESTAçãO MóVEL EM UM SISTEMA DE COMUNICAçãO DE MúLTIPLO ACESSO POR DIVISãO DE CóDIGO''. Um dispositivo de transmissão de canal de tráfego para um sistema de comunicação CDMA usando diversas taxas de codificação e códigos ortogonais, determina uma condição de canal presente e seleciona adaptivamente uma taxa de codificação e um código ortogonal de acordo com a determinação. No dispositivo, um receptor de canal recebe um sinal de canal e um controlador analisa o sinal recebido para decidir quanto a um ambiente de canal em serviço e gera um sinal de seleção de taxa de codificação e informação de código ortogonal de acordo com o resultado da decisão. Um transmissor de canal inclui um codificador de canal (311, 312) para codificar dados de transmissão a uma taxa de codificação selecionada de acordo com o sinal de seleção de taxa de codificação (Csel) e um modulador ortogonal (361, 362) para gerar um código ortogonal de acordo com a informação de código ortogonal para espalhar os dados codificados com o código ortogonal gerado, por meio do qual o transmissor de canal codifica adaptivamente e espalha os dados de transmissão de acordo com o ambiente de canal. A informação de código ortogonal inclui um número e uma extensão do código ortogonal.
BR9904846A 1998-03-02 1999-03-02 Dispositivo e processo de comunicação de canal para um sistema de comunicação de múltiplo acesso por divisão de código e dispositivo de recepção de canal para uma estação móvel e um sistema de comunicação de múltiplo acesso por divisão de código BR9904846A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR19980006833 1998-03-02
KR19980040167 1998-09-26
PCT/KR1999/000094 WO1999045660A1 (en) 1998-03-02 1999-03-02 Rate control device and method for cdma communication system

Publications (1)

Publication Number Publication Date
BR9904846A true BR9904846A (pt) 2000-07-18

Family

ID=26633485

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9904846A BR9904846A (pt) 1998-03-02 1999-03-02 Dispositivo e processo de comunicação de canal para um sistema de comunicação de múltiplo acesso por divisão de código e dispositivo de recepção de canal para uma estação móvel e um sistema de comunicação de múltiplo acesso por divisão de código

Country Status (11)

Country Link
US (2) US6700881B1 (pt)
EP (1) EP0979562B1 (pt)
JP (1) JP3698733B2 (pt)
KR (1) KR100346113B1 (pt)
CN (1) CN1130856C (pt)
AU (1) AU719857B2 (pt)
BR (1) BR9904846A (pt)
CA (1) CA2287321C (pt)
DE (1) DE69936023T2 (pt)
RU (1) RU2187892C2 (pt)
WO (1) WO1999045660A1 (pt)

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US7227836B2 (en) 2007-06-05
KR19990077526A (ko) 1999-10-25
AU719857B2 (en) 2000-05-18
CN1256821A (zh) 2000-06-14
CA2287321C (en) 2003-04-29
AU2643099A (en) 1999-09-20
EP0979562A1 (en) 2000-02-16
WO1999045660A1 (en) 1999-09-10
DE69936023D1 (de) 2007-06-21
CA2287321A1 (en) 1999-09-10
KR100346113B1 (ko) 2002-12-06
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