公开(公告)号：US20190268021A1

公开(公告)日：2019-08-29

申请号：US16411268

申请日：2019-05-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Vasily Stanislavovich USATYUK ,  ILYA Viktorovich VOROBYEV ,  Nikita Andreevich POLIANSKII ,  German Viktorovich SVISTUNOV

IPC: H03M13/11

Abstract: A method for quasi-cyclic low-density parity-check (QC-LDPC) encoding and decoding of a data packet by a lifted matrix is provided, the method comprising: lifting the QC-LDPC code for maximal code length Nmax and maximal circulant size Zupper of the base matrix; generating a plurality of optimal values ri for a plurality of circulants Z1, Z2, . . . , Zupper based on the QC-LDPC code lifted for maximal length Nmax, 0≤ri≤Zupper−1; saving the generated plurality of optimal values ri corresponding to the plurality of circulants Z1, Z2, . . . , Zupper and a matrix for the QC-LDPC code lifted for maximal length Nmax in the memory; receiving a current circulant Zcurrent from the plurality of circulants Z1, Z2, . . . , Zupper; selecting a current optimal value rcurrent from the plurality of optimal values ri stored in the memory corresponding to the current circulant Zcurrent; and lifting the base matrix based on the current optimal value rcurrent.

公开(公告)号：US20200153457A1

公开(公告)日：2020-05-14

申请号：US16741199

申请日：2020-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vasily Stanislavovich USATYUK ,  Nikita Andreevich POLIANSKII ,  Ilya Viktorovich VOROBYEV ,  Vladimir Anatolyevich GAEV ,  German Viktorovich SVISTUNOV ,  Mikhail Sergeevich KAMENEV ,  Yulia Borisovna KAMENEVA

IPC: H03M13/11 ,  H03M13/00

Abstract: Provided is a system and method for determining a generalized LDPC code for forward error correction channel coding that has a repeat-accumulate code structure.

公开(公告)号：US20240146455A1

公开(公告)日：2024-05-02

申请号：US18485303

申请日：2023-10-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Wang ,  Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Lingchen Huang ,  Shengchen Dai ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jian Wang ,  Ying Chen ,  Nikita Andreevich POLIANSKII ,  Mikhail Sergeevich KAMENEV ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

IPC: H04L1/00 ,  H03M13/13

CPC classification number: H04L1/0058 ,  H03M13/13 ,  H04L1/0043 ,  H04L1/0057 ,  H04L1/0061 ,  H03M13/00

Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.

公开(公告)号：US20200220556A1

公开(公告)日：2020-07-09

申请号：US16738768

申请日：2020-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vasily Stanislavovich USATYUK ,  Nikita Andreevich POLIANSKII ,  Ilya Viktorovich VOROBYEV ,  Vladimir Anatolyevich GAEV ,  German Viktorovich SVISTUNOV ,  Mikhail Sergeevich KAMENEV ,  Yulia Borisovna KAMENEVA

IPC: H03M13/11 ,  H04L1/18 ,  H03M13/25

Abstract: Provided is an encoder, a decoder, a computer-readable medium and methods of forward error correction channel encoding/decoding within a HARQ scheme, based on a generalized quasi-cyclic low-density parity-check code comprising a Cordaro-Wagner component code.