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    Channel encoding method and communication device
    293.
    发明授权
    Channel encoding method and communication device 有权

    公开(公告)号：US10966118B2

    公开(公告)日：2021-03-30

    申请号：US16352796

    申请日：2019-03-13

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Rong Li ,  Yunfei Qiao ,  Huazi Zhang

    IPC: H04W28/06 ,  H03M13/13 ,  H04L1/00 ,  H03M13/09 ,  H04L29/06 ,  H04W72/04

    Abstract: Embodiments of this application provide a channel encoding method for use by a communication device. The communication device obtains a quantity K of information bits, and determines a load size of a channel for transmitting the K information bits. The load size of the channel is N bits, where N≥K, N=2n, and n is a positive integer. The communication device performs a polar encoding process on the K information bits, to obtain a polar code sequence that includes N bits. The N-bit polar code sequence is transmitted using the channel, without rate matching. Because a quantity of coded bits obtained after the polar encoding is equal to a load size of a channel, no rate matching process is required. This reduces encoding overheads of a channel. Complexity and latency of channel encoding are greatly reduced, and performance loss associated with the rate matching operation is avoided.

    Polar code rate matching method and apparatus, and a communications apparatus
    294.
    发明授权
    Polar code rate matching method and apparatus, and a communications apparatus 有权

    公开(公告)号：US10938422B2

    公开(公告)日：2021-03-02

    申请号：US16579334

    申请日：2019-09-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H03M13/00 ,  H03M13/13

    Abstract: Embodiments of this application provide a polar code rate matching method and apparatus, and a communications apparatus. The rate matching method includes: determining N to-be-encoded bits, where the N to-be-encoded bits include N1 information bits, and both N1 and N are positive integers; encoding the N to-be-encoded bits to obtain N encoded bits; obtaining a first puncturing sequence based on an information bit length N1, the quantity N of the encoded bits, and a quantity Q of to-be-punctured bits; and performing a puncturing operation on the N encoded bits based on the first puncturing sequence to implement a rate matching. To-be-punctured bits indicated in the first puncturing sequence are obtained based on the information bit length N1, the quantity N of the encoded bits, and the quantity Q of the to-be-punctured bits, and are not generated randomly.

    METHOD AND DEVICE FOR TRANSMITTING DATA
    297.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING DATA 审中-公开

    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.

    Methods and Apparatus for Polar Encoding
    298.
    发明申请
    Methods and Apparatus for Polar Encoding 审中-公开

    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.

    Method for encoding information in communication network
    299.
    发明授权
    Method for encoding information in communication network 有权

    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.

    Method for encoding information bit sequence in communication network
    300.
    发明授权
    Method for encoding information bit sequence in communication network 有权

    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.

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