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1. WO2000016488 - METHOD AND APPARATUS FOR ERRORS AND ERASURES DECODING

Publication Number WO/2000/016488
Publication Date 23.03.2000
International Application No. PCT/US1999/020609
International Filing Date 08.09.1999
Chapter 2 Demand Filed 06.04.2000
IPC
H03M 13/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
13Coding, 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
H03M 13/15 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
13Coding, 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
03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
05using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
13Linear codes
15Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem codes
H03M 13/45 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
13Coding, 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
37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03-H03M13/35153
45Soft decoding, i.e. using symbol reliability information
H04L 1/20 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
20using signal-quality detector
CPC
H03M 13/154
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
05using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
13Linear codes
15Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
151using error location or error correction polynomials
154Error and erasure correction, e.g. by using the error and erasure locator or Forney polynomial
H03M 13/17
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
05using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
13Linear codes
17Burst error correction, e.g. error trapping, Fire codes
H03M 13/2721
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
27using interleaving techniques
2703the interleaver involving at least two directions
2721the interleaver involves a diagonal direction, e.g. by using an interleaving matrix with read-out in a diagonal direction
H03M 13/3707
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
3707Adaptive decoding and hybrid decoding, e.g. decoding methods or techniques providing more than one decoding algorithm for one code
H03M 13/6306
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
63Joint error correction and other techniques
6306Error control coding in combination with Automatic Repeat reQuest [ARQ] and diversity transmission, e.g. coding schemes for the multiple transmission of the same information or the transmission of incremental redundancy
H03M 13/6513
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, 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
65Purpose and implementation aspects
6508Flexibility, adaptability, parametrability and configurability of the implementation
6513Support of multiple code types, e.g. unified decoder for LDPC and turbo codes
Applicants
  • ERICSSON INC. [US]/[US]
Inventors
  • DENT, Paul
  • HASSAN, Amer
  • STARK, Wayne
Agents
  • MOORE, Stanley, R.
  • WALKER, Brian. D.
Priority Data
09/150,52610.09.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ERRORS AND ERASURES DECODING
(FR) PROCEDE ET APPAREIL DE DECODAGE D'ERREURS ET EFFACEMENTS
Abstract
(EN)
A method for coded transmission of data is disclosed. A first code word interleaved in a first plurality of burst transmissions is recovered for further processing. The recovered code word is decoded to correct and identify any errors within the code word. Using the results of the above-decoding, bad burst transmissions are identified and erased. Subsequently, a second code word interleaved within a second plurality of burst transmissions is recovered. The second plurality of burst transmissions includes the erased burst transmissions from the first plurality of burst transmissions. The received second code word is then errors and erasures decoded.
(FR)
L'invention se rapporte à un procédé de transmission codée de données. Selon ce procédé, on extrait un premier mot de code entrelacé dans une première pluralité de transmissions par rafales en vue d'un traitement ultérieur. On décode ce mot de code extrait de manière à corriger et identifier toute erreur présente dans le mot de code. Sur la base des résultats du décodage ci-dessus mentionné, on identifie les mauvaises transmissions par rafales et on les supprime. Puis on extrait un second mot de code entrelacé dans une seconde pluralité de transmissions par rafales. Cette seconde pluralité de transmissions par rafales contient les transmissions par rafales erronées de la première pluralité de transmissions par rafales. On décode alors les erreurs et effacements contenus dans le second mot de code reçu.
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