Title:
LDPC CODE ENCODING METHOD AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/136540
Kind Code:
A1
Abstract:
The present application provides an LDPC code encoding method and a communication device, which can satisfy the requirement of reducing the channel encoding rate by increasing the number of redundant bits by means of retransmission in an IR-HARQ mechanism, and can improve the decoding performance of LDPC code. In said method, a check matrix of LDPC code is used as a basic matrix, and the basic matrix is expanded to obtain a mother matrix which can be compatible with a plurality of code rates. When performing LDPC encoding, a sending end device reads a check matrix corresponding to a required bit rate from the mother matrix, and performs LDPC encoding on an information bit sequence according to the read check matrix. Using check matrices of different sizes to perform LDPC encoding on the information bit sequence can result in different numbers of redundant bits.
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Inventors:
MONTORSI GUIDO (IT)
BENEDETTO SERGIO (IT)
LIN WEI (CN)
XIN YAN (CN)
BENEDETTO SERGIO (IT)
LIN WEI (CN)
XIN YAN (CN)
Application Number:
PCT/CN2020/142584
Publication Date:
July 08, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03M13/11
Foreign References:
| CN110611510A | 2019-12-24 | |||
| CN108023598A | 2018-05-11 | |||
| CN106685586A | 2017-05-17 | |||
| CN202010006366A | 2020-01-03 |
Other References:
MU LIWEI; LIANG CHULONG; LIU ZHIYONG; PAN DARU: "Construction of regular rate-compatible LDPC convolutional codes", CHINA COMMUNICATIONS, vol. 13, no. 8, 31 August 2016 (2016-08-31), pages 97 - 102, XP011622449, ISSN: 1673-5447, DOI: 10.1109/CC.2016.7563692
MU LIWEI; HAN GUOJUN; LIU ZHIYONG: "Construction of rate-compatible (RC) low-density parity-check (LDPC) convolutional codes based on RC-LDPC block codes", JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY (ENGLISH EDITION), vol. 21, no. 6, 8 December 2016 (2016-12-08), pages 679 - 683, XP036114990, ISSN: 1007-1172, DOI: 10.1007/s12204-016-1781-5
See also references of EP 4072024A4
MU LIWEI; HAN GUOJUN; LIU ZHIYONG: "Construction of rate-compatible (RC) low-density parity-check (LDPC) convolutional codes based on RC-LDPC block codes", JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY (ENGLISH EDITION), vol. 21, no. 6, 8 December 2016 (2016-12-08), pages 679 - 683, XP036114990, ISSN: 1007-1172, DOI: 10.1007/s12204-016-1781-5
See also references of EP 4072024A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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