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Patent Searching and Data


Title:
DECODING METHOD AND DECODER FOR LOW-DENSITY PARITY CHECK CODE
Document Type and Number:
WIPO Patent Application WO/2017/084024
Kind Code:
A1
Abstract:
Provided in the embodiments of the present invention is a decoding method and a decoder for low-density parity check (LDPC) code, said method comprising: a decoder dividing an LDPC code C having a length n into k LDPC codes D, D={D1, D2,..., Dk-1, Dk}; the decoder arranging Di, i=1, 2,..., k-1, k, in columns to obtain transposed code formula I of the LDPC codes D; performing, according to the values of the corresponding elements in a target check matrix, cyclic shifts to formula II, i=1, 2,..., k-1, k, in rows to obtain shift codes E, E={E1, E2,..., Et-1, Et}, t being equal to the number of the rows of the target check matrix; the decoder obtaining, according to the shift codes E and the length d of the decoder, t*m groups of LDPC sub-codes F1, F2,..., Ftm-1, Ftm, Ej being divided into m groups, and in formula III, m=[l/d]; the decoder decoding the m groups of LDPC sub-codes to acquire the decoding result of the LDPC code C. In this way, it is possible to flexibly control the decoding parallelism of the LDPC code, achieving a better balance of the decoding performance and resources.

Inventors:
FAN JIAQI (CN)
SI XIAOSHU (CN)
Application Number:
PCT/CN2015/094783
Publication Date:
May 26, 2017
Filing Date:
November 17, 2015
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L1/00; H03M13/11
Foreign References:
CN102638275A2012-08-15
CN101820288A2010-09-01
CN102687445A2012-09-19
US20110126078A12011-05-26
US20100107030A12010-04-29
Other References:
See also references of EP 3364578A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
北京龙双利达知识产权代理有限公司 (CN)
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