公开(公告)号：US20200162107A1

公开(公告)日：2020-05-21

申请号：US16749453

申请日：2020-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yurii Sergeevich SHUTKIN ,  Pavel Anatolyevich PANTELEEV ,  Aleksey Alexandrovich LETUNOVSKIY ,  Elyar Eldarovich GASANOV ,  Gleb Vyacheslavovich KALACHEV ,  Ivan Leonidovich MAZURENKO

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

Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.

公开(公告)号：US20190334559A1

公开(公告)日：2019-10-31

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: Provided is a base matrix of a rate-adaptive irregular QC-LDPC code, 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：US20190260390A1

公开(公告)日：2019-08-22

申请号：US16400877

申请日：2019-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yurii Sergeevich SHUTKIN ,  Pavel Anatolyevich PANTELEEV ,  Aleksey Alexandrovich LETUNOVSKIY ,  Elyar Eldarovich GASANOV ,  Gleb Vyacheslavovich KALACHEV ,  Ivan Leonidovich MAZURENKO

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

Abstract: Certain aspects of the present disclosure provide an efficiently decodable QC-LDPC code which is based on a base matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes and columns corresponding to non-punctured variable nodes. Apparatus at a transmitting side includes a encoder configured to encode a sequence of information bits based on the base matrix. Apparatus at a receiving side configured to receive a codeword in accordance with a radio technology across a wireless channel. The apparatus at the receiving side includes a decoder configured to decode the codeword based on the base matrix.