Interpretation method and decoder

A decoder and a decoding technology, which are applied in the field of decoding methods and decoders, can solve the problems of incorrect initialization information, reduce inter-symbol crosstalk channels, and low transmission performance of inter-symbol crosstalk channels, and achieve reliable initialization information and reduce Bit error rate, the effect of improving transmission performance
CN101345601AInactive Publication Date: 2009-01-14HUAWEI TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2009-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a coding method comprising executing maximum likelihood ratio sequential estimation, obtaining estimated sequence, computing reliability of each bit of the sequence; initializing LDPC coding information according to reliability of each bit and received sequence; after completing initialization, using information generated by initialization as initial value of LDPC coding, executing LDPC iteration coding, obtaining coding result. The invention also discloses a coder. The inventive coder and coding method can effectively reduce communication system error rate of combining error correcting and coding for MLSE and LDPC code.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a decoding method and a decoder. Background technique

[0002] In a communication system, a channel is used to transfer information from one place to another. However, for communication channels with intersymbol interference, mutual interference between different signals may cause errors in information transmission. In order to improve the transmission performance of a communication system under an intersymbol interference channel, a Maximum Likelihood Sequence Estimation (Maximum Likelihood Sequence Estimation, MLSE) technique and an error correction code technique are often used. There are many methods of error correction codes, among which a low density parity check (Low Density Parity Check, LDPC) code is a kind of error correction code.

[0003] The MLSE technology, the LDPC code decoding technology and the basic joint decoding technology of the two are described separate...

Claims

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