公开(公告)号：US20230098837A1

公开(公告)日：2023-03-30

申请号：US17956399

申请日：2022-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Yinggang Du ,  Juan Song

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

Abstract: This application relates to the field of communication technologies, and discloses a polar coding/decoding method and apparatus, to improve sequence lookup efficiency. The method includes: obtaining a first sequence from a polar code construction sequence table based on a coding parameter, where the polar code construction sequence table includes at least one coding parameter and at least one sequence corresponding to the at least one coding parameter, the coding parameter is mapped to the sequence in a one-to-one manner, the first sequence is one of the at least one sequence; and selecting serial numbers of K polarized channels from the first sequence based on a rate matching scheme and/or a reliability order, placing to-be-coded bits based on the selected serial numbers of the K polarized channels, and performing polar coding, to obtain a coded bit sequence.

公开(公告)号：US11496245B2

公开(公告)日：2022-11-08

申请号：US17209674

申请日：2021-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Juan Song ,  Yinggang Du

IPC: H04L1/00

Abstract: A channel encoding method and apparatus. The method includes: obtaining A to-be-encoded information bits; mapping the A to-be-encoded information bits and L CRC bits to a first bit sequence based on an interleaving sequence, where the L CRC bits are obtained based on the A to-be-encoded information bits and a CRC polynomial, the interleaving sequence is obtained from a prestored interleaving sequence table or is obtained based on a maximum-length interleaving sequence, A+L is less than or equal to Kmax, and Kmax is a length of the maximum-length interleaving sequence; and encoding the first bit sequence. In this way, not only an encoding delay can be reduced, but also decoding has an early stop capability, so that decoding can end in advance, thereby reducing a decoding delay.

公开(公告)号：US11343014B2

公开(公告)日：2022-05-24

申请号：US16824658

申请日：2020-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Wang ,  Huangping Jin ,  Shengchen Dai ,  Rong Li ,  Yinggang Du ,  Jun Wang ,  Yiqun Ge

IPC: H04L12/28 ,  H04L1/00 ,  H04B7/06 ,  H04J1/16

Abstract: The application provides method for communicating channel state information (CSI) in a communication network. The method is as follows: An apparatus determines whether a length of CSI is less than a preset length; and adds a padding bit to the CSI when determining that the length of the CSI is less than the preset length, where a length of CSI obtained by adding the padding bit is consistent with the predetermined length. The CSI obtained by adding the padding bit is communicated in the communication network.

公开(公告)号：US20220014315A1

公开(公告)日：2022-01-13

申请号：US17485834

申请日：2021-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuili Kong ,  Yinggang Du ,  Rongdao Yu ,  Gongzheng Zhang ,  Yunfei Qiao ,  Guijie Wang

IPC: H04L1/18 ,  H04W72/04

Abstract: A hybrid automatic repeat request (HARQ) process disabling method, a receiving device, and a sending device in communication, the method including a receiving device obtaining indication data, where the indication data is used to indicate to disable a HARQ process, and the receiving device disabling the HARQ process.

公开(公告)号：US11165535B2

公开(公告)日：2021-11-02

申请号：US16838945

申请日：2020-04-02

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 Polianskii ,  Mikhail Kamenev ,  Zukang Shen ,  Yourui HuangFu ,  Yinggang Du

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/09 ,  H03M13/29 ,  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：US11165534B2

公开(公告)日：2021-11-02

申请号：US16683470

申请日：2019-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen Xu ,  Gongzheng Zhang ,  Jun Wang ,  Guijie Wang ,  Yunfei Qiao ,  Yinggang Du

IPC: H04L1/00

Abstract: The present disclosure relates to polar code encoding methods and apparatus. One example 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 sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K≤N, selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability, placing the K to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the K to-be-encoded bits.

公开(公告)号：US11153028B2

公开(公告)日：2021-10-19

申请号：US16400377

申请日：2019-05-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yinggang Du ,  Yan Chen ,  Xiuqiang Xu

IPC: H04L1/00 ,  H04L5/00 ,  H04W52/14 ,  H04W72/08 ,  H04W72/04 ,  H04W74/08

Abstract: A grant-free transmission method, a terminal, and a network device are disclosed. In an embodiment, a grant-free transmission method includes sending, by a network device, information about P dedicated transmission resources used for grant-free transmission to a terminal, wherein P is a positive integer and P≥2, detecting, by the network device, a dedicated transmission resource, and detecting, by the network device, data based on a transmission parameter set corresponding to the dedicated transmission resource when grant-free transmission is detected.

公开(公告)号：US20210218578A1

公开(公告)日：2021-07-15

申请号：US17215505

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Qiao ,  Rongdao Yu ,  Yinggang Du ,  Guangjian Wang

IPC: H04L9/32 ,  H04W36/30 ,  H04W36/08 ,  H04L9/06 ,  H04W36/24

Abstract: A data processing method for a data processing system having a first communications node and a second communications node where the first communications node corresponds to a first blockchain node and the second communications node corresponds to a second blockchain node that maintains a same block chain as the first blockchain node, the method including obtaining, by the first communications node, to-be-verified data when a terminal camps on a target cell, where the to-be-verified data is obtained based on camping information of the terminal, and the target cell is a cell within signal coverage of the first communications node sending, by the first communications node, the to-be-verified data to the second communications node, so that the second communications node verifies the to-be-verified data based on the second blockchain node, and obtaining, by the first communications node, a target block if the verification succeeds.

公开(公告)号：US10972220B2

公开(公告)日：2021-04-06

申请号：US16705647

申请日：2019-12-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guijie Wang ,  Jian Wang ,  Yunfei Qiao ,  Yinggang Du

IPC: H04L1/00

Abstract: This application relates to the field of communications technologies, and discloses an interleaving method, a deinterleaving method, and an apparatus, to improve randomicity of polar code interleaving. The method is: obtaining a to-be-interleaved bit sequence, where the to-be-interleaved bit sequence includes L, subsequences, the L subsequences include S subsequence groups, the S subsequence groups include at least a first subsequence group and a second subsequence group, the first subsequence group includes at least two subsequences, the second subsequence group includes at least one subsequence, and L is a positive integer greater than 1; and interleaving the subsequences in the first subsequence group in a first interleaving manner, and skipping interleaving the subsequence in the second subsequence group or interleaving the subsequence in the second subsequence group in a second interleaving manner.

公开(公告)号：US10958377B2

公开(公告)日：2021-03-23

申请号：US16520530

申请日：2019-07-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue Zhou ,  Yinggang Du ,  Rong Li

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/09 ,  H03M13/13 ,  H03M13/29

Abstract: Embodiments of this application provide an encoding and decoding method and device in wireless communications between network devices and user equipment. The encoding method includes: obtaining, by a transmit end, a post-polar-encoding data length corresponding to to-be-encoded data; segmenting, by the transmit end, the to-be-encoded data into at least one code block based on the post-encoding data length and a preset threshold; and performing, by the transmit end, polar encoding on each code block, and transmitting encoded data to a receive end. The embodiments of this application avoid a data transmission performance loss caused by an excessive quantity of segments.