公开(公告)号：US12224856B2

公开(公告)日：2025-02-11

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 ,  H03M13/00 ,  H03M13/09 ,  H03M13/29

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：US12149261B2

公开(公告)日：2024-11-19

申请号：US18317259

申请日：2023-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianbin Wang ,  Rong Li ,  Huazi Zhang ,  Shengchen Dai ,  Jiajie Tong ,  Yunfei Qiao ,  Jun Wang

IPC: H03M13/13 ,  H04L1/1607 ,  H04L5/00

Abstract: This application provides a polar encoding method and apparatus. The method can include obtaining a basic sequence, where the basic sequence includes N0 subchannel numbers. The method can also include sequentially reading first subchannel numbers from the basic sequence, and sequentially reading 2m second subchannel numbers from the basic sequence starting from an Mth subchannel number based on the first subchannel number read each time; and adding q*N0 to each of the 2m second subchannel numbers to obtain 2m third subchannel numbers. Furthermore, the method can include constructing a polar code by using subchannels corresponding to the 2m third subchannel numbers as information bits. A polar code with another code length is constructed based on a sequence with a length of N0. A length of a polar code that needs to be stored is therefore reduced, which reduces complexity and is also easy to implement.

公开(公告)号：US12143125B2

公开(公告)日：2024-11-12

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 ,  H04L1/00

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：US12136932B2

公开(公告)日：2024-11-05

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：US12101102B2

公开(公告)日：2024-09-24

申请号：US18301724

申请日：2023-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianbin Wang ,  Huazi Zhang ,  Rong Li ,  Jiajie Tong ,  Shengchen Dai ,  Jun Wang

IPC: H03M13/45

CPC classification number: H03M13/451

Abstract: A decoding method includes: decoding first to-be-decoded information based on a first decoder to obtain a first decoding result that includes first soft information or a first hard output; and correcting the first decoding result based on a first correction model to obtain a corrected first decoding result of the first to-be-decoded information. The first correction model is obtained through training based on training data that includes a training decoding result and a corrected training decoding result. The training decoding result is a decoding result obtained after the first decoder decodes training to-be-decoded information, and the corrected training decoding result is a corrected decoding result corresponding to the training decoding result. In this way, after a decoder performs decoding, a decoding result can be corrected based on a correction model.

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：US11764812B2

公开(公告)日：2023-09-19

申请号：US17511905

申请日：2021-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianbin Wang ,  Huazi Zhang ,  Rong Li ,  Lingchen Huang ,  Shengchen Dai ,  Jiajie Tong

IPC: H03M13/00 ,  H03M13/29

CPC classification number: H03M13/2906

Abstract: Embodiments disclose an encoding method and a communications device. The method includes: obtaining and encoding a to-be-encoded information bit sequence based on a binary vector P1 of a first code, to obtain and output an encoded bit sequence, where P1 is determined based on a binary vector P2 of a second code and a binary vector P3 of a third code, P1, P2, and P3 indicate an information bit and a frozen bit of the first code, the second code and the third code respectively, a code length of the first code, the second code and the third code is n1, n2 and n3 respectively, a quantity of information bits of the first code, the second code and the third code is k1, k2 and k3 respectively, n1=n2*n3, and k1=k2*k3. Therefore, parallel decoding can be performed, helping reduce a decoding delay.

公开(公告)号：US11296724B2

公开(公告)日：2022-04-05

申请号：US16811934

申请日：2020-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengchen Dai ,  Lingchen Huang ,  Gongzheng Zhang ,  Yunfei Qiao ,  Chen Xu ,  Jun Wang ,  Rong Li

IPC: H03M13/09 ,  H03M13/15 ,  H04L1/00

Abstract: This application provides an encoding method and apparatus in a wireless communications system. The method includes: performing cyclic redundancy check (CRC) encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and the A information bits; and performing polar encoding on the first bit sequence, where L has a value of one of 3, 4, 5, 8, and 16. Based on an improved CRC polynomial, coding satisfying a false alarm rate (FAR) requirement is implemented.

公开(公告)号：US11190215B2

公开(公告)日：2021-11-30

申请号：US16683594

申请日：2019-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen Dai ,  Huazi Zhang ,  Rong Li ,  Gongzheng Zhang ,  Lingchen Huang

IPC: H03M13/00 ,  H03M13/15 ,  H03M13/09 ,  H03M13/19

Abstract: The present disclosure relates to data transmission methods. One example method includes obtaining K information bits, determining to-be-encoded bits, where the to-be-encoded bits include (K+P) bits, the (K+P) bits include the K information bits and P check bits, the K information bits correspond to K polarization channels, the P check bits include T first-type check bits, all the T first-type check bits are PC bits, and reliability of a polarization channel corresponding to each of the T first-type check bits is greater than a minimum value of reliability of the K polarization channels, and performing polar coding on the to-be-encoded bits to obtain encoded bits, where the (K+P) bits are in a one-to-one correspondence with (K+P) rows in a generator matrix of the encoded bits, a maximum row weight corresponding to the T first-type check bits is less than or equal to W2.

公开(公告)号：US10425190B2

公开(公告)日：2019-09-24

申请号：US16118685

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen Dai ,  Lingchen Huang ,  Gongzheng Zhang ,  Yunfei Qiao ,  Rong Li

IPC: H04L1/00

Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. The method includes: performing CRC encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L=6; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.