公开(公告)号：US11095317B2

公开(公告)日：2021-08-17

申请号：US16506696

申请日：2019-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pavel Anatolyevich Panteleev ,  Gleb Vyacheslavovich Kalachev ,  Ivan Leonidovich Mazurenko ,  Elyar Eldarovich Gasanov ,  Yurii Sergeevich Shutkin

IPC: H03M13/00 ,  H03M13/11

Abstract: A base matrix of a rate-adaptive irregular QC-LDPC code is provided, the base matrix being formed by columns and rows having entries representing circulant submatrices. The columns of the base matrix are divided into at least one or more higher weight first columns and lower weight second columns and the rows of the base matrix are divided into first high weight rows corresponding to the high rate mother code and second low weight rows corresponding to the extension part related to the lower rate codes. A first submatrix formed by an intersection of entries of the second columns and entries of the first and the second rows is divided into first quadratic submatrices, wherein at most one entry in each column of each first submatrix and/or at most one entry in each row of each first submatrix is labelled.

公开(公告)号：US11088706B2

公开(公告)日：2021-08-10

申请号：US16719529

申请日：2019-12-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Jin ,  Ivan Leonidovich Mazurenko ,  Aleksandr Aleksandrovich Petiushko ,  Chaolong Zhang

IPC: H03M13/00 ,  H03M13/11

Abstract: This application discloses an encoding method, an apparatus, a communications device, and a communications system. The method includes: encoding an input bit sequence by using a low density parity check LDPC matrix, where the LDPC matrix is obtained based on a lifting factor Z and a base matrix, and the base matrix includes a row 0 to a row 4 and a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B, or the base matrix includes a row 0 to a row 4 and some of a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B. According to the encoding method, the apparatus, the communications device, and the communications system, channel coding requirements can be met.

公开(公告)号：US10771092B2

公开(公告)日：2020-09-08

申请号：US16423175

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jie Jin ,  Ivan Leonidovich Mazurenko ,  Aleksandr Aleksandrovich Petiushko ,  Chaolong Zhang

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00 ,  H03M13/25

Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.