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：US12143124B2

公开(公告)日：2024-11-12

申请号：US18366757

申请日：2023-08-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H03M13/00 ,  H03M13/11

Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.

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：US11923973B2

公开(公告)日：2024-03-05

申请号：US17962023

申请日：2022-10-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang ,  Wen Tong ,  Yiqun Ge ,  Xiaocheng Liu

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/11 ,  H03M13/13

CPC classification number: H04L1/0009 ,  H03M13/11 ,  H03M13/13 ,  H03M13/611 ,  H03M13/616 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0043 ,  H04L1/0061 ,  H04L1/0063 ,  H04L1/0065

Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.

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：US11374682B2

公开(公告)日：2022-06-28

申请号：US16693865

申请日：2019-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang ,  Wen Tong ,  Yiqun Ge ,  Xiaocheng Liu

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/00 ,  H03M13/11

Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.

公开(公告)号：US11303298B2

公开(公告)日：2022-04-12

申请号：US16914775

申请日：2020-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue Zhou ,  Rong Li ,  Hejia Luo ,  Huazi Zhang ,  Ying Chen

IPC: G06F11/00 ,  G06F11/30 ,  G08C25/00 ,  H03M13/00 ,  H04L1/00 ,  H03M13/09 ,  H03M13/13

Abstract: Embodiments of this application disclose encoding and decoding methods and apparatus related to the communications. One of the methods includes: obtaining, based on polar code rate matching, a subchannel corresponding to a punctured bit or a shortened bit; determine subchannels corresponding to an information bit and a check frozen bit that are different from the subchannel corresponding to the punctured bit or the shortened bit; determining that a subchannel corresponding to a frozen bit that is different from the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the punctured bit or the shortened bit; performing, according to the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the frozen bit, parity check encoding and polar encoding based on the information bit to obtain encoded information; and sending the encoded information.

公开(公告)号：US11197281B2

公开(公告)日：2021-12-07

申请号：US16503607

申请日：2019-07-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD

Inventor： Jian Wang ,  Jun Wang ,  Rong Li ,  Huazi Zhang ,  Chaolong Zhang

IPC: H04L1/00 ,  H04W72/04

Abstract: Embodiments of the present invention provide a control information transmission method and apparatus. The control information transmission method includes: determining, by a network device, N pieces of to-be-jointly-coded downlink control information DCI, where N is an integer greater than or equal to 2; coding, by the network device, the N pieces of DCI in a polar coding manner, to obtain one codeword; and mapping, by the network device, the codeword to a time-frequency resource of a downlink control channel for sending. According to the embodiments of the present invention, not only a relatively high coding gain can be obtained, but a relatively low average processing latency on a decoder side can also be obtained.