公开(公告)号：US20220376819A1

公开(公告)日：2022-11-24

申请号：US17837916

申请日：2022-06-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladimir Vitalievich GRITSENKO ,  Vladislav Nikolaevich OBOLENTSEV ,  Dmitrii Yurievich BUKHAN ,  Aleksei Eduardovich MAEVSKII ,  Hongchen YU ,  Kun GU ,  Jie CHEN ,  Shiyao XIAO ,  Man ZHAO ,  Jun CHEN ,  Yunlong LI

IPC: H04L1/00

Abstract: The present disclosure provides an encoding and decoding device implementing an improved forward error correction (FEC) coding/decoding method. In particular, the encoding device is configured to encode a stream of data symbols using a spatially coupled code (e.g. staircase codes, braided block codes or continuously interleaved block codes), wherein at least one generalized error location (GEL) code is used as a component code of the spatially coupled code. Accordingly, the decoding device is configured to decode a sequence of encoded symbol blocks using a spatially coupled code, wherein at least one GEL code is used as a component code of the spatially coupled code. Thereby, a suitable spatially coupled FEC code that allows for very low-latency, high-throughput, high-rate applications with a low-complexity decoding procedure, and allows for mitigation of the error-floor, is designed.

公开(公告)号：US20190238159A1

公开(公告)日：2019-08-01

申请号：US16383322

申请日：2019-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Vladimir GRITSENKO ,  Aleksei Eduardovich MAEVSKII ,  Hejia LUO ,  Jian WANG ,  Rong LI

IPC: H03M13/13 ,  H03M13/00 ,  H03M13/37 ,  H04L1/00

Abstract: A method to explicitly indicate the version information while still supporting soft combining is disclosed. A polar code encoder maps q bits to q positions of q sub-channels, q is a positive integer; wherein the q bits are used to indicate a version of encoded codeword; map 1 to a special frozen bit corresponding to the q bits; map K−q information bits to K−q positions for the K−q information bits, K is an integer, K>q; and perform polar encoding over an input vector u0N−1, comprising the q bits, the special frozen bit and the K−q information bits, with the length of N, N is an integer, N>=K. With this method, there is no need to make blind detection to achieve the version information of transmitted payload, which reduces power consumption for a receiver.

公开(公告)号：US20200091935A1

公开(公告)日：2020-03-19

申请号：US16689754

申请日：2019-11-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Aleksei Eduardovich MAEVSKII ,  Vladimir GRITSENKO ,  Yunfei QIAO ,  Jian WANG ,  Chaolong ZHANG

IPC: H03M13/13

Abstract: A coding method, a wireless device, and a chip are described. A coding method may include obtaining, based on a sequence whose length is 2n′, a mother code sequence used for coding, where the sequence whose length is 2n′ includes 2n′ sequence numbers, a length of the mother code sequence is 2n, the mother code sequence includes 2n sequence numbers, the 2n sequence numbers are some or all of the 2n′ sequence numbers, n′ is a natural number, and n is a natural number less than or equal to n′. The method may also include coding an input to-be-coded bit by using the mother code sequence. According to this method, a system may store one or more long sequences, and then obtain a required mother code sequence from one of the long sequences according to a coding requirement, thereby reducing storage overheads of the system.

公开(公告)号：US20190326933A1

公开(公告)日：2019-10-24

申请号：US16459008

申请日：2019-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi ZHANG ,  Jun WANG ,  Rong Li ,  Lingchen HUANG ,  Jian WANG ,  Shengchen DAI ,  Jiajie TONG ,  Vladimir GRITSENKO ,  Oleg Feat'evich KURMAEV ,  Aleksei Eduardovich MAEVSKII

IPC: H03M13/13 ,  H04L1/00 ,  H03M13/00

Abstract: A method comprises: obtaining a coded bit sequence by performing PC-polar coding on information bits based on first constructor parameters; and sending the coded bit sequence. A check equation of the first constructor parameters includes a first element representing a check-required information bit position and a second element representing a check bit position, the first element corresponds to a first vector (V1) in a generator matrix for PC-polar codes, the second element corresponds to a second vector (V2) in the generator matrix, and if a first Hamming weight (HW1) of V1 is the same as a second Hamming weight (HW2) of V2, then a third Hamming weight (HW3) of an addition modulo 2 vector is greater than HW1 and greater than HW2, or if HW1 is different from HW2, then HW3 is greater than a smaller one of the HW1 and HW2.

公开(公告)号：US20190296857A1

公开(公告)日：2019-09-26

申请号：US16423178

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Vladimir GRITSENKO ,  Aleksei Eduardovich MAEVSKII ,  Hejia LUO ,  Rong LI ,  Jun WANG

IPC: H04L1/00

Abstract: Method and apparatus for transmission and reception with polar codes are provided to support up to 16 permutations or transformation mappings. For example, 16 versions of copies able to be soft-combined for PBCH or any other data channel or control channel are suggested if the mother code length is 256 or 512 or 1024. With the new design, up to 16 different versions can be used to soft combined to improve the performance. Some sequences are provided as examples to support 16 different permutation patterns. The inverse of these sequences also have the feature to support 16 different permutation patterns.