公开(公告)号：US20240137047A1

公开(公告)日：2024-04-25

申请号：US18399874

申请日：2023-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiajie TONG ,  Xianbin WANG ,  Huazi ZHANG ,  Rong LI ,  Jun WANG

IPC: H03M13/13 ,  H04L1/00

CPC classification number: H03M13/13 ,  H04L1/0057 ,  H04L1/0067 ,  H04L1/0071

Abstract: An encoding method, a decoding method, and an apparatus. A symbol quantity S is determined based on an encoding bit quantity L and an energy level quantity B, where S is S1 or S2, S1=L/B, and S2=L/2B. K information sub-channels are determined from an encoding sequence based on the symbol quantity S, the energy level quantity B, and a reliability sequence. K information bits are encoded and a bit sequence is output based on the K information sub-channels, where the K information sub-channels are selected from candidate sub-channels based on an order of reliability of the candidate sub-channels. The candidate sub-channels are S1 sub-channels or 2×S2 sub-channels in a sub-sequence whose energy level is i in the encoding sequence.

公开(公告)号：US20240007220A1

公开(公告)日：2024-01-04

申请号：US18467782

申请日：2023-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi ZHANG ,  Rong LI ,  Jiajie TONG ,  Xianbin WANG ,  Jun WANG ,  Wen TONG

IPC: H04L1/00 ,  H03M13/13

CPC classification number: H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H03M13/13

Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.

公开(公告)号：US20230208442A1

公开(公告)日：2023-06-29

申请号：US18170763

申请日：2023-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiajie TONG ,  Huazi ZHANG ,  Xianbin WANG ,  Shengchen DAI ,  Rong LI ,  Jun WANG

IPC: H03M13/13 ,  H03M13/00

CPC classification number: H03M13/13 ,  H03M13/612

Abstract: An encoding method includes obtaining to-be-encoded information and a mother code length N. The to-be-encoded information includes K information bits. The method also includes determining, based on K and N, a set I corresponding to subchannels of the information bits and a set F corresponding to subchannels of frozen bits. Information bits corresponding to subchannel sequence numbers in the set I are distributed in X outer component codes, a code length of each outer component code is B, and the X outer component codes includes a first-type outer component code and a second-type outer component code or the X outer component codes include a first-type outer component code, a second-type outer component code, and one third-type outer component code. Different types of component codes have different code rates. The method additionally includes performing polarization encoding based on the set I and the set F.

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.