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：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.