WO2004006441A3 - Method and system for memory management in low density parity check (ldpc) decoders - Google Patents

Method and system for memory management in low density parity check (ldpc) decoders Download PDF

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Publication number
WO2004006441A3
WO2004006441A3 PCT/US2003/021071 US0321071W WO2004006441A3 WO 2004006441 A3 WO2004006441 A3 WO 2004006441A3 US 0321071 W US0321071 W US 0321071W WO 2004006441 A3 WO2004006441 A3 WO 2004006441A3
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WO
WIPO (PCT)
Prior art keywords
ldpc
parity check
low density
density parity
edge values
Prior art date
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Ceased
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PCT/US2003/021071
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French (fr)
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WO2004006441A2 (en
Inventor
Mustafa Eroz
Lin-Nan Lee
Feng-Wen Sun
Bob Cassagnol
Ancken Adam Von
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AT&T MVPD Group LLC
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Hughes Electronics Corp
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Publication date
Application filed by Hughes Electronics Corp filed Critical Hughes Electronics Corp
Priority to AU2003249708A priority Critical patent/AU2003249708A1/en
Priority to CA002454574A priority patent/CA2454574C/en
Priority to HK06100579.3A priority patent/HK1081003B/en
Priority to KR1020047002194A priority patent/KR100674523B1/en
Priority to AT03763216T priority patent/ATE556491T1/en
Priority to EP03763216.3A priority patent/EP1525664B9/en
Priority to JP2004562621A priority patent/JP3917624B2/en
Publication of WO2004006441A2 publication Critical patent/WO2004006441A2/en
Publication of WO2004006441A3 publication Critical patent/WO2004006441A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H03M13/01—Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
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Abstract

An approach is provided for decoding a low density parity check (LDPC) coded signal. Edge values associated with a structured parity check matrix used to generate the LDPC coded signal are retrieved from memory (1501, 1503). The edge values specify the relationship of bit nodes and check nodes, and are stored within memory according to a predetermined scheme that permits concurrent retrieval of a set of the edge values. A decoded signal corresponding to the LDPC coded signal is output based on the retrieved edge values.
PCT/US2003/021071 2002-07-03 2003-07-03 Method and system for memory management in low density parity check (ldpc) decoders Ceased WO2004006441A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2003249708A AU2003249708A1 (en) 2002-07-03 2003-07-03 Method and system for memory management in low density parity check (ldpc) decoders
CA002454574A CA2454574C (en) 2002-07-03 2003-07-03 Method and system for memory management in low density parity check (ldpc) decoders
HK06100579.3A HK1081003B (en) 2002-07-03 2003-07-03 Method and system for routing in low density parity check (ldpc) decoders
KR1020047002194A KR100674523B1 (en) 2002-07-03 2003-07-03 Method and System for Routing Low Density Parity Check (LDPC) Decoder
AT03763216T ATE556491T1 (en) 2002-07-03 2003-07-03 METHOD AND PROCEDURE FOR MEMORY MANAGEMENT IN LOW DENSITY PARITY CHECK (LDPC) DECODERING
EP03763216.3A EP1525664B9 (en) 2002-07-03 2003-07-03 Method and system for memory management in low density parity check (ldpc) decoders
JP2004562621A JP3917624B2 (en) 2002-07-03 2003-07-03 Routing method and system in a low density parity check (LDPC) decoder

Applications Claiming Priority (24)

Application Number Priority Date Filing Date Title
US39345702P 2002-07-03 2002-07-03
US60/393,457 2002-07-03
US39876002P 2002-07-26 2002-07-26
US60/398,760 2002-07-26
US40381202P 2002-08-15 2002-08-15
US60/403,812 2002-08-15
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