公开(公告)号：US10917115B2

公开(公告)日：2021-02-09

申请号：US16664660

申请日：2019-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yourui HuangFu ,  Jian Wang ,  Rong Li ,  Yunfei Qiao ,  Jun Wang

IPC: H03M13/13 ,  H04L1/00

Abstract: Example polar coding methods and apparatus are described. One example method includes determining a sequence used to code to-be-coded bits. Polar coding is performed on the to-be-coded bits by using the sequence to obtain coded bits. The sequence is used to represent a reliability order of N polarized channels, N is a mother code length of a polar code, and N is a positive integer power of 2.

公开(公告)号：US20200274642A1

公开(公告)日：2020-08-27

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

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：US20200236589A1

公开(公告)日：2020-07-23

申请号：US16748825

申请日：2020-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng Zhang ,  Yourui HuangFu ,  Lingchen Huang ,  Ying Chen ,  Yunfei Qiao ,  Rong Li

IPC: H04W28/04 ,  H04L1/00

Abstract: Embodiments of the application provide a method for transmitting data in a wireless communication network. A device of the network receives a bit sequence of K information bits. The device polar codes the bit sequence to obtain a first encoded sequence, wherein a length of the first encoded sequence is N, and N is greater than or equal to K. The device block interleaves the first encoded sequence to obtain an interleaved bit sequence. The device determines a transmission code rate R. When the transmission code rate R is less than the code rate threshold, the device outputs a second bit sequence. The length of the second bit sequence is M, M is smaller than N. The second bit sequence is punctured from the interleaved bit sequence by removing (N−M) bits from beginning of the interleaved bit sequence.

公开(公告)号：US20200235755A1

公开(公告)日：2020-07-23

申请号：US16798916

申请日：2020-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hejia Luo ,  Rong Li ,  Vladimir Vitalievich Gritsenko ,  Aleksei Eduardovich Maevskii ,  Jun Wang

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

Abstract: A polar code encoder is configured to: map q bits to q positions of q sub-channels, where q is a positive integer, and the q bits are used to indicate a version of encoded codeword; map K-q information bits to K-q positions for the K-q information bits, K is an integer, K>q; and perform polar encoding over an input vector u0N-1, comprising the q bits and the K-q information bits, with the length of N, N is an integer, N>=K and scramble with scrambling vector over the polar encoded bits, where the scrambling vector is associated to the q sub-channels or the scrambling vector is associated to a special frozen bit which is corresponding to the q sub-channels.

公开(公告)号：US10700809B2

公开(公告)日：2020-06-30

申请号：US16423173

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

Abstract: Embodiments of the application provide a method for rate matching in a wireless communication network. A device obtains K information bits and a target code length M of a polar code, determines, according to a minimum value of a set of values, a mother code length N1, polar encodes the K information bits to obtain an encoded sequence of N1 bits, obtains a target sequence of M bits from the N1 bit encoded sequence, and outputs the M-bit target sequence. When the mother code length N1 is larger than the target code length M, (N1−M) bits of the encoded sequence are punctured or shortened from the N1 bit encoded sequence.

公开(公告)号：US10666391B2

公开(公告)日：2020-05-26

申请号：US16249910

申请日：2019-01-17

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Chen Xu ,  Rong Li ,  Gongzheng Zhang ,  Yue Zhou ,  Lingchen Huang ,  Yunfei Qiao ,  Carmela Cozzo ,  Yiqun Ge

IPC: H04L1/00 ,  H03M13/13

Abstract: Embodiments of this application provide a method for encoding data in a wireless communication network. A communication device obtains an information bit sequence of a bit length K and a code length M. When M is greater than or equal to a first threshold and K is greater than or equal to a second threshold, the device divides the information bit sequence into p subsequences that are of an equal length K1. Then the device encodes each of the p subsequence to obtain p encoded subsequences. The device rate-matches each of the p encoded subsequences to obtain p rate matched subsequences, concatenates the p rate matched subsequences to obtain the output sequence of the code length M, then outputs the output sequence.

公开(公告)号：US10601543B2

公开(公告)日：2020-03-24

申请号：US16540086

申请日：2019-08-14

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 manner for communicating channel state information (CSI) in a communication network. A preset length is used for equalizing lengths of CSI to be reported. The preset length is determined based on a quantity of CSI-reference signal (RS) ports. A communication device determines whether a total length of one or more indication information items to be included in the CSI is less than the preset length. If the total length of the one or more indication information items to be included in the CSI is less than the preset length, the communication device adds one or more padding bits, to obtain a CSI bit sequence including the one or more indication information items and the one or more padding bits. A total length of the CSI bit sequence is consistent with the preset length. The communication device then outputs the CSI bit sequence.

公开(公告)号：US10594439B2

公开(公告)日：2020-03-17

申请号：US16118740

申请日：2018-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lingchen Huang ,  Shengchen Dai ,  Chen Xu ,  Yunfei Qiao ,  Rong Li

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

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=11; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.

公开(公告)号：US20200067536A1

公开(公告)日：2020-02-27

申请号：US16673581

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hejia Luo ,  Gongzheng Zhang ,  Jian Wang ,  Rong Li ,  Yourui HuangFu ,  Huazi Zhang ,  Ying Chen ,  Jun Wang

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

Abstract: A polar code transmission method and apparatus, the method including performing, by a transmit end, polar code encoding on at least one of to-be-encoded bit sequences U to generate an encoded sequence, wherein a length of U is N, and scrambling and interleaving, by the transmit end, the encoded sequence by using a scrambling sequence SX and an interleaving matrix PX.

公开(公告)号：US20200021392A1

公开(公告)日：2020-01-16

申请号：US16579867

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Chen Xu ,  Rong Li ,  Gongzheng Zhang ,  Yue Zhou ,  Lingchen Huang

IPC: H04L1/00

Abstract: Embodiments of this application provide an information processing method and a coding apparatus. An information bit sequence includes a K-bit information block. The information bit sequence is to be processed into an encoded bit sequence with a target code length M, M>1024. For a given code rate R, when the length K of the information block is greater than a preset threshold, the information bit sequence is segmented into two or more segments. Each segment is polar encoded into an encoded subsequence. The encoded subsequence has a length that equals to a mother code length Ni, and i=1, 2, . . . , p. Each of the p encoded subsequences is rate matched to obtain a rate-matched encoded subsequence. A rate-matched encoded subsequence i of the p rate-matched encoded subsequences has a code length Mi. The p rate-matched encoded subsequences are concatenated into an encoded bit sequence which has a code length M.