UA94695C2 - Способ и устройство ldpc-декодирования - Google Patents

Способ и устройство ldpc-декодирования

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Publication number
UA94695C2
UA94695C2 UAA200701778A UAA200701778A UA94695C2 UA 94695 C2 UA94695 C2 UA 94695C2 UA A200701778 A UAA200701778 A UA A200701778A UA A200701778 A UAA200701778 A UA A200701778A UA 94695 C2 UA94695 C2 UA 94695C2
Authority
UA
Ukraine
Prior art keywords
code
decoding
codeword
control
decoder
Prior art date
Application number
UAA200701778A
Other languages
English (en)
Ukrainian (uk)
Inventor
Том Ричардсон
Хой Цзынь
Владимир Новичков
Original Assignee
Квелкомм Инкорпорейтед
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 Квелкомм Инкорпорейтед filed Critical Квелкомм Инкорпорейтед
Publication of UA94695C2 publication Critical patent/UA94695C2/ru

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    • 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
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105—Decoding
    • H03M13/1131—Scheduling of bit node or check node processing
    • H03M13/1137—Partly parallel processing, i.e. sub-blocks or sub-groups of nodes being processed in parallel
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6508—Flexibility, adaptability, parametrability and configurability of the implementation
    • H03M13/6513—Support of multiple code types, e.g. unified decoder for LDPC and turbo codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6508—Flexibility, adaptability, parametrability and configurability of the implementation
    • H03M13/6516—Support of multiple code parameters, e.g. generalized Reed-Solomon decoder for a variety of generator polynomials or Galois fields
    • 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
    • H04L1/0045—Arrangements at the receiver end

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Описан гибкий и относительно аппаратно эффективный LDPC -декодер. Декодер может быть реализован с уровнем параллелизма, который меньше полного параллелизма структуры кода, который используется для управления процессом декодирования. Каждая команда относительно простого управляющего кода, который используется для описания структуры кода, может быть сохранена и выполнена несколько раз для выполнения декодирования кодового слова. Разные значения длины кодового слова поддерживаются с помощью одного набора инструкций кода управления, но при этом код реализовывается разное количеств
UAA200701778A 2004-07-21 2005-07-20 Способ и устройство ldpc-декодирования UA94695C2 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/895,645 US7395490B2 (en) 2004-07-21 2004-07-21 LDPC decoding methods and apparatus

Publications (1)

Publication Number Publication Date
UA94695C2 true UA94695C2 (ru) 2011-06-10

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
UAA201015970A UA96108C2 (ru) 2004-07-21 2005-07-20 Способы и устройство ldpc-декодирования
UAA200701778A UA94695C2 (ru) 2004-07-21 2005-07-20 Способ и устройство ldpc-декодирования

Family Applications Before (1)

Application Number Title Priority Date Filing Date
UAA201015970A UA96108C2 (ru) 2004-07-21 2005-07-20 Способы и устройство ldpc-декодирования

Country Status (13)

Country Link
US (3) US7395490B2 (ru)
EP (3) EP2369750A3 (ru)
KR (3) KR100883459B1 (ru)
CN (3) CN101895301B (ru)
AU (4) AU2005329064B2 (ru)
CA (2) CA2672074C (ru)
HK (3) HK1131474A1 (ru)
NO (1) NO20070969L (ru)
NZ (1) NZ553353A (ru)
RU (1) RU2392737C2 (ru)
UA (2) UA96108C2 (ru)
WO (1) WO2006098748A2 (ru)
ZA (1) ZA200701499B (ru)

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