公开(公告)号：US11368249B2

公开(公告)日：2022-06-21

申请号：US17132566

申请日：2020-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rong Li ,  Gongzheng Zhang ,  Ying Chen ,  Xiaocheng Liu ,  Jun Wang

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

Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.

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：US11316538B2

公开(公告)日：2022-04-26

申请号：US17188588

申请日：2021-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Wang ,  Huazi Zhang ,  Rong Li

IPC: H03M13/13 ,  H03M13/11 ,  H03M13/00 ,  H04L1/00 ,  H04L1/16

Abstract: A polar code encoding method and apparatus, the method including determining a sorted sequence to encode to-be-encoded bits, where the sorted sequence represents reliability sorting of N polar channels, where N is a mother code length of a polar code, where N is a positive integer, where N is a power of two, and where a minimum sequence number of polar channels in the sorted sequence is 1, obtaining encoded bits by the apparatus by performing polar code encoding on the to-be-encoded bits using the sorted sequence, and outputting, by the apparatus, the encoded bits.

公开(公告)号：US11303301B2

公开(公告)日：2022-04-12

申请号：US16710786

申请日：2019-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi Zhang ,  Rong Li ,  Aleksei Eduardovich Maevskii ,  Shengchen Dai

IPC: H03M13/13 ,  H04L1/00 ,  H04L1/16

Abstract: Embodiments of the present invention disclose a coding method. The method in the embodiments of the present invention includes: constructing a check equation based on a correspondence between a first subchannel and a second subchannel that is in a second subchannel group, where a check bit of the check equation corresponds to the first subchannel, an information bit of the check equation corresponds to the second subchannel, the second subchannel group includes at least one second subchannel, a sequence number of the first subchannel is divided by a first preset value and a remainder is a second preset value, a sequence number of the second subchannel is divided by a third preset value and a remainder is a fourth preset value, and the sequence number of the first subchannel is greater than the sequence number of the second subchannel; and performing coding by using the check equation.

公开(公告)号：US11206048B2

公开(公告)日：2021-12-21

申请号：US16855495

申请日：2020-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying Chen ,  Gongzheng Zhang ,  Yunfei Qiao ,  Rong Li ,  Huazi Zhang ,  Hejia Luo

IPC: H03M13/00 ,  H03M13/39 ,  H03M13/13

Abstract: This application provides a polar encoding and decoding method, a sending device, and a receiving device, to help overcome disadvantages in transmission of medium and small packets, a code rate, reliability, and complexity in the prior art. The method includes: pre-storing, by a computing device, at least one mother code sequence, wherein each mother code sequence comprises at least one subsequence and at least one subset, the at least one subsequence and the at least one subset each comprises one or more sequence numbers corresponding to one or more polarized channels, and wherein the one or more sequence numbers in each subsequence are arranged in an ascending order according to reliability of the corresponding one or more polarized channels; determining, by the computing device, a set of information bit sequence numbers from the at least one mother code sequence based on a code length of a target polar code; and performing, by the computing device, polar encoding on information bits based on the set of information bit sequence numbers.

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：US20210289339A1

公开(公告)日：2021-09-16

申请号：US17332699

申请日：2021-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianhang Yu ,  Rong Li

IPC: H04W8/08

Abstract: A tracking area (TA) update method, a broadcast message transmission method, and a communications apparatus, where the tracking area update method includes: receiving a broadcast message periodically sent by a satellite device, where the broadcast message alternately carries tracking area codes (TACs) corresponding to one or more TAs of at least two TAs, and where coverage of a beam of the satellite device belongs to the at least two TAs; when detecting for the first time that a TA corresponding to a TAC in a broadcast message received in a current period does not belong to a first TA list, recording the TA in a second TA list; continuing detecting a subsequent broadcast message; and determining, based on a TAC in the subsequent broadcast message, whether to initiate a TA update procedure.

公开(公告)号：US11115054B2

公开(公告)日：2021-09-07

申请号：US16688100

申请日：2019-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gongzheng Zhang ,  Huazi Zhang ,  Rong Li ,  Lingchen Huang ,  Yunfei Qiao

IPC: H03M13/00 ,  H03M13/13 ,  G06F7/24

Abstract: This application provides a polar code encoding method and apparatus. The method includes: obtaining, by a sending device, a sequence corresponding to a required mother code length; obtaining, by the sending device, a to-be-encoded bit; and performing, by the sending device, polar code encoding on the to-be-encoded bit by using the sequence corresponding to the required mother code length, to obtain an encoded bit, where the sequence is generated based on a basic sequence, and a length of the basic sequence is less than the mother code length.

公开(公告)号：US11101821B2

公开(公告)日：2021-08-24

申请号：US16673421

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng Zhang ,  Huazi Zhang ,  Chen Xu ,  Rong Li ,  Jun Wang ,  Lingchen Huang

IPC: H03M13/13 ,  H04L1/18

Abstract: A method for polar encoding includes: receiving a message including information bits; encoding the message using a first polar code to obtain a first codeword; and encoding the message using a second polar code to obtain a second codeword. The second codeword includes two parts, and the first part of the second codeword is same as the first codeword. The method for polar encoding also includes transmitting the first codeword to a receiver in a first transmission; and transmitting the second part of the second codeword in a second transmission without transmitting the first part of the second codeword when the receiver is unable to decode the message based on the first codeword.

公开(公告)号：US11063611B2

公开(公告)日：2021-07-13

申请号：US16673118

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lingchen Huang ,  Huazi Zhang ,  Rong Li ,  Gongzheng Zhang ,  Chen Xu

IPC: H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H04L1/00

Abstract: An encoding method and apparatus are provided. The method by a transmit end includes: performing check encoding on to-be-encoded information to obtain a check encoding codeword that comprises K information bits and J check bits; performing an interleaving operation on the check encoding codeword with an interleaving sequence including J subsequences, and an ith subsequence includes a position index of an element 1 in an intermediate result vector Ti and a value of (K+i), where 1≤i≤J, i is an integer, Ti=(˜M)&(Vi), M=M|(Vi), M is a masked vector, Vi is a column vector of a checking part matrix P, P is a submatrix of a generator matrix G for check encoding, ˜ represents a bit-by-bit NOT operation, & represents a bit-by-bit AND operation, and | represents a bit-by-bit OR operation; and performing polar encoding on a check encoding codeword obtained after the interleaving operation.