公开(公告)号：US20170047945A1

公开(公告)日：2017-02-16

申请号：US15337703

申请日：2016-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhouhui Chen ,  Zheng Ma ,  Wei Lin

IPC: H03M13/11 ,  H03M13/00

CPC classification number: H03M13/1177 ,  H03M13/005 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/616 ,  H03M13/6362 ,  H03M13/6527 ,  H04L1/0069

Abstract: The present invention discloses a data sending method and apparatus, which resolves a problem that performance of a high coding rate LDPC code obtained in an existing puncturing manner based on a variable node degree distribution is relatively poor. The method includes: encoding, by using an LDPC code check matrix, an information bit that needs to be sent, to obtain a codeword sequence; determining a puncturing priority of each parity bit in the codeword sequence according to row destruction and/or cycle destruction, on the LDPC code check matrix, of a variable node corresponding to each parity bit; puncturing the codeword sequence according to the puncturing priority of each parity bit in the codeword sequence; and generating a bit sequence according to the punctured codeword sequence, and sending the bit sequence. In this way, performance of an obtained high coding rate LDPC code is improved.

Abstract translation: 本发明公开了一种数据发送方法和装置，其解决了基于可变节点度分布以现有的删截方式获得的高编码率LDPC码的性能相对较差的问题。 该方法包括：通过使用LDPC码校验矩阵来编码需要发送的信息比特，以获得码字序列; 根据与每个奇偶校验位相对应的可变节点的LDPC码校验矩阵，根据行破坏和/或周期破坏确定码字序列中的每个奇偶校验位的删截优先级; 根据码字序列中的每个奇偶校验位的删截优先级，对码字序列进行删截; 以及根据所述穿孔码字序列生成比特序列，以及发送所述比特序列。 以这种方式，提高了获得的高编码率LDPC码的性能。

公开(公告)号：US10135466B2

公开(公告)日：2018-11-20

申请号：US15337703

申请日：2016-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhouhui Chen ,  Zheng Ma ,  Wei Lin

IPC: H03M13/00 ,  H03M13/11 ,  H04B7/06 ,  H04L1/00

Abstract: The present invention discloses a data sending method and apparatus, which resolves a problem that performance of a high coding rate LDPC code obtained in an existing puncturing manner based on a variable node degree distribution is relatively poor. The method includes: encoding, by using an LDPC code check matrix, an information bit that needs to be sent, to obtain a codeword sequence; determining a puncturing priority of each parity bit in the codeword sequence according to row destruction and/or cycle destruction, on the LDPC code check matrix, of a variable node corresponding to each parity bit; puncturing the codeword sequence according to the puncturing priority of each parity bit in the codeword sequence; and generating a bit sequence according to the punctured codeword sequence, and sending the bit sequence. In this way, performance of an obtained high coding rate LDPC code is improved.