公开(公告)号：US20230058149A1

公开(公告)日：2023-02-23

申请号：US17969736

申请日：2022-10-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H03M13/11

Abstract: An encoding method and apparatus, a decoding method and apparatus, and a device are provided. The encoding method includes obtaining K to-be-encoded bits (S301), where K is a positive integer; determining a first generator matrix, where the first generator matrix includes at least two sub-blocks distributed based on a preset position relationship, and the sub-block includes a plurality of first generator matrix cores (S302); generating a second generator matrix based on the first generator matrix, where the second generator matrix includes T sub-blocks, and a position relationship between two adjacent sub-blocks of the T sub-blocks is determined based on the preset position relationship (S303), where T is a positive integer; and polar encoding the K to-be-encoded bits based on the second generator matrix (S304), to obtain encoded bits. This reduces encoding/decoding complexity.

公开(公告)号：US20250119234A1

公开(公告)日：2025-04-10

申请号：US18981949

申请日：2024-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/00

Abstract: Embodiments of this application provide a communication method and apparatus, to reduce complexity of a polar code construction process. The method includes: obtaining a to-be-encoded bit sequence, where the to-be-encoded bit sequence includes K information bits, and K is an integer greater than 0; determining a first sequence, where positions of the K information bits in the first sequence are determined based on a second sequence corresponding to a target code rate and a value of K, the second sequence is used to represent selection priorities of N0 bit positions, and N0 is an integer greater than K; performing polar code encoding on the first sequence to obtain a third sequence; and sending the third sequence. The second sequence is designed for a constant code rate, and a same sequence may be used to construct a series of polar codes having a same code rate and different lengths.

公开(公告)号：US20240195527A1

公开(公告)日：2024-06-13

申请号：US18401019

申请日：2023-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen DAI ,  Jiajie TONG ,  Zhan YU ,  Kai FU ,  Rong LI ,  Jun WANG

IPC: H04L1/00

CPC classification number: H04L1/0057 ,  H04L1/0007 ,  H04L1/0041

Abstract: Methods, devices, and computer-readable storage media are disclosed. In an example method, segmentation of to-be-encoded information bits of a length N into respective quantities of different types of segments is performed. The different types of segments are among (b−a+1) types of segments that correspond to (b−a+1) different segment code lengths. The (b−a+1) types of segments comprise a minimum-length segment that has the minimum segment code length of 2{circumflex over ( )}a and a maximum-length segment that has the maximum segment code length of 2{circumflex over ( )}b. The respective quantities of the different types of segments are determined based on the length N and a code rate in an orderly manner, wherein the orderly manner comprises firstly determining a quantity of the maximum-length segments and lastly determining a quantity of the minimum-length segments. Polar code encoding is performed on the respective quantities of the different types of segments of the to-be-encoded information bits.

公开(公告)号：US20240097816A1

公开(公告)日：2024-03-21

申请号：US18519440

申请日：2023-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tianhang YU ,  Jiajie TONG ,  Gongzheng ZHANG ,  Rong LI ,  Jun WANG ,  Wen TONG

IPC: H04L1/00

CPC classification number: H04L1/0003

Abstract: An information transmission method and an apparatus. The information transmission method includes: a receive end sends first indication information, where the first indication information indicates a target receiving mode of the receive end, and the target receiving mode is one of a plurality of receiving modes. The receive end receives service information based on the target receiving mode. The receive end performs decoding processing on the service information based on the target receiving mode. In this way, power consumption can be further reduced, and information transmission of a plurality of service types can be supported, thereby improving information transmission flexibility and user experience.

公开(公告)号：US20230124664A1

公开(公告)日：2023-04-20

申请号：US18067513

申请日：2022-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/1812 ,  H04L1/1867

Abstract: Embodiments of this application disclose a example polar code encoding methods, example polar code decoding methods, and example apparatuses thereof. One example method in embodiments of this application includes generating an input vector, where the input vector includes T subblocks, a first information bit of a first subblock is obtained by replicating a second information bit of a second subblock, the first subblock and the second subblock arc subblocks of the T subblocks, a sequence number of the first subblock is after a sequence number of the second subblock, and T is an integer greater than or equal to 2. Polar encoding can then be performed on the input vector to obtain an encoded bit.

公开(公告)号：US20230113448A1

公开(公告)日：2023-04-13

申请号：US18065479

申请日：2022-12-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen DAI ,  Rong LI ,  Jiajie TONG ,  Huazi ZHANG ,  Xianbin WANG ,  Jun WANG ,  Wei HUANG ,  Yourui HUANGFU

IPC: H03M13/13 ,  H03M13/00 ,  H03M13/27

Abstract: The present disclosure relates to polar code rate matching methods, apparatuses, and mediums. One example method includes obtaining K to-be-coded bits and a mother code length N, where N=2n performing polar code encoding on the K to-be-coded bits based on the mother code length N to obtain an encoded bit sequence, performing rate matching on the polar-encoded bit sequence based on a rate matching sequence to obtain a rate matched sequence with a length of M, and outputting the rate matched sequence.

公开(公告)号：US20200343916A1

公开(公告)日：2020-10-29

申请号：US16923898

申请日：2020-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiajie TONG ,  Huazi ZHANG ,  Yunfei QIAO ,  Rong LI ,  Xiaocheng LIU ,  Jun WANG

IPC: H03M13/45 ,  H03M13/09

Abstract: A decoding method and apparatus are provided, to improve a degree of parallelism in decoded bit decisions and reduce a decoding delay. The method includes: performing a hard decision on each LLR in an inputted LLR vector having a length of M to obtain a first vector, where M≤N and N is a length of to-be-decoded information; sequentially performing negation of some elements of the first vector to obtain L vectors; and then determining decoding results of the LLR vector based on the L vectors.

公开(公告)号：US20250015933A1

公开(公告)日：2025-01-09

申请号：US18779058

申请日：2024-07-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/1812 ,  H03M13/00 ,  H03M13/03 ,  H03M13/13 ,  H04L1/00 ,  H04L1/1867

Abstract: Embodiments of this application disclose a polar code encoding method, a polar code decoding method, and apparatuses thereof, to reduce encoding and decoding complexity. The method in embodiments of this application includes: generating an input vector, where the input vector includes T subblocks, a first information bit of a first subblock is obtained by replicating a second information bit of a second subblock, the first subblock and the second subblock are subblocks of the T subblocks, a sequence number of the first subblock is after a sequence number of the second subblock, and T is an integer greater than or equal to 2; and performing polar encoding on the input vector to obtain an encoded bit.

公开(公告)号：US20240305514A1

公开(公告)日：2024-09-12

申请号：US18665859

申请日：2024-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L27/34 ,  H04L27/38

CPC classification number: H04L27/3405 ,  H04L27/38

Abstract: This application provides a data sending method and an apparatus. The method includes: A first device sends, to a second device, first data modulated by using a first quadrature amplitude modulation codebook. The second device receives, from the first device, the first data modulated by using the first quadrature amplitude modulation codebook. When the second device fails to decode the first data modulated by using the first quadrature amplitude modulation codebook, the first device sends, to the second device, second data modulated by using a second quadrature amplitude modulation codebook. The second data is a part or all of the first data, and the first quadrature amplitude modulation codebook is different from the second quadrature amplitude modulation codebook. The second device receives, from the first device, the second data modulated by using the second quadrature amplitude modulation codebook, and jointly decodes the first data and the second data.

公开(公告)号：US20240235579A9

公开(公告)日：2024-07-11

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.