BR9911427A - Processo para uso em um decodificador de dados para derivar uma estimativa de palavra código de uma palavra recebida, decodificador linear que é capaz de usar informação pesada incluindo dados definidos e informação leve incluindo informação indefinida, e, processos para derivar uma estimativa de palavra código de uma palavra código incluindo uma pluralidade de caracteres, e para desenvolver uma tabela de guias de co-conjunto - Google Patents

Processo para uso em um decodificador de dados para derivar uma estimativa de palavra código de uma palavra recebida, decodificador linear que é capaz de usar informação pesada incluindo dados definidos e informação leve incluindo informação indefinida, e, processos para derivar uma estimativa de palavra código de uma palavra código incluindo uma pluralidade de caracteres, e para desenvolver uma tabela de guias de co-conjunto

Info

Publication number
BR9911427A
BR9911427A BR9911427-5A BR9911427A BR9911427A BR 9911427 A BR9911427 A BR 9911427A BR 9911427 A BR9911427 A BR 9911427A BR 9911427 A BR9911427 A BR 9911427A
Authority
BR
Brazil
Prior art keywords
code word
word
decoder
estimate
information including
Prior art date
Application number
BR9911427-5A
Other languages
English (en)
Inventor
Ali S Khayrallah
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of BR9911427A publication Critical patent/BR9911427A/pt

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0057Block codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

"PROCESSO PARA USO EM UM DECODIFICADOR DE DADOS PARA DERIVAR UMA ESTIMATIVA DE PALAVRA CóDIGO DE UMA PALAVRA RECEBIDA, DECODIFICADOR LINEAR QUE é CAPAZ DE USAR INFORMAçãO PESADA INCLUINDO DADOS DEFINIDOS E INFORMAçãO LEVE INCLUINDO INFORMAçãO INDEFINIDA, E, PROCESSOS PARA DERIVAR UMA ESTIMATIVA DE PALAVRA CóDIGO DE UMA PALAVRA CóDIGO INCLUINDO UMA PLURALIDADE DE CARACTERES, E PARA DESENVOLVER UMA TABELA DE GUIAS DE CO-CONJUNTO". Um decodificador de correção de erro dianteira recebe uma palavra recebida incluindo uma pluralidade de caracteres. O decodificador também recebe um valor de confiabilidade para cada caracter. O decodificador calcula uma síndrome para cada membro do conjunto de possíveis palavras recebidas transformando cada membro com a matriz de verificação de paridade. Membros do conjunto tendo a mesma síndrome são agrupados juntos em co-conjuntos. Um peso baseado no valor de confiabilidade é então designado para cada membro em cada co-conjunto. O peso é definido para ser o número de baixa confiabilidade, caracteres não zero em cada membro do conjunto de possíveis palavras recebidas. Para cada co-conjunto, o membro que tem o mais baixo peso é selecionado como um guia de co-conjunto. Uma síndrome é computada para a palavra código leve transformando-a com a matriz de verificação de paridade. O guia de co-conjunto com a mesma síndrome como a palavra recebida é subtraído da palavra recebida resultando em uma estimativa de palavra código
BR9911427-5A 1998-06-22 1999-04-28 Processo para uso em um decodificador de dados para derivar uma estimativa de palavra código de uma palavra recebida, decodificador linear que é capaz de usar informação pesada incluindo dados definidos e informação leve incluindo informação indefinida, e, processos para derivar uma estimativa de palavra código de uma palavra código incluindo uma pluralidade de caracteres, e para desenvolver uma tabela de guias de co-conjunto BR9911427A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/102,291 US6145110A (en) 1998-06-22 1998-06-22 Digital data decoder that derives codeword estimates from soft data
PCT/US1999/009239 WO1999067913A1 (en) 1998-06-22 1999-04-28 Digital data decoder that derives codeword estimates from soft data

Publications (1)

Publication Number Publication Date
BR9911427A true BR9911427A (pt) 2001-03-20

Family

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Application Number Title Priority Date Filing Date
BR9911427-5A BR9911427A (pt) 1998-06-22 1999-04-28 Processo para uso em um decodificador de dados para derivar uma estimativa de palavra código de uma palavra recebida, decodificador linear que é capaz de usar informação pesada incluindo dados definidos e informação leve incluindo informação indefinida, e, processos para derivar uma estimativa de palavra código de uma palavra código incluindo uma pluralidade de caracteres, e para desenvolver uma tabela de guias de co-conjunto

Country Status (8)

Country Link
US (1) US6145110A (pt)
EP (1) EP1090473A1 (pt)
CN (1) CN1126312C (pt)
AU (1) AU3769599A (pt)
BR (1) BR9911427A (pt)
EE (1) EE200000762A (pt)
HK (1) HK1039007A1 (pt)
WO (1) WO1999067913A1 (pt)

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HK1039007A1 (en) 2002-04-04
US6145110A (en) 2000-11-07
CN1126312C (zh) 2003-10-29
WO1999067913A1 (en) 1999-12-29
AU3769599A (en) 2000-01-10
CN1306711A (zh) 2001-08-01
EP1090473A1 (en) 2001-04-11
EE200000762A (et) 2002-04-15

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