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    Data broadcast method and apparatus
    93.
    发明授权
    Data broadcast method and apparatus 有权

    公开(公告)号：US11424819B2

    公开(公告)日：2022-08-23

    申请号：US17360529

    申请日：2021-06-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hejia Luo ,  Ying Chen ,  Jie Sheng ,  Rong Li

    IPC: H04B7/185

    Abstract: A data broadcast method includes obtaining, by a satellite base station, a plurality of pieces of data that are to be broadcast. The plurality of pieces of data are a same type of data including compensation values of Doppler frequency shifts, change rates of Doppler frequency shifts, transmission delays, change rates of transmission delays, timing advances TAs, change rates of TAs, or angles of a plurality of beams that respectively correspond to a plurality of beams generated by the satellite base station. The satellite base station determines reference data and a difference between each piece of data in the plurality of pieces of data and the reference data. The satellite base station sends first indication information and a plurality of pieces of second indication information to a terminal device. The first indication information indicates the reference data.

    Method for polar coding and apparatus
    94.
    发明授权
    Method for polar coding and apparatus 有权

    公开(公告)号：US11303388B2

    公开(公告)日：2022-04-12

    申请号：US16908252

    申请日：2020-06-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hejia Luo ,  Yinggang Du ,  Rong Li ,  Lingchen Huang ,  Ying Chen

    IPC: H04L1/00

    Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.

    Encoding method, decoding method, apparatus, and device
    96.
    发明授权
    Encoding method, decoding method, apparatus, and device 有权

    公开(公告)号：US11265101B2

    公开(公告)日：2022-03-01

    申请号：US16786488

    申请日：2020-02-10

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04L1/00

    Abstract: Embodiments of the present disclosure provide a rate matching method and an apparatus. The method includes performing, by a sending apparatus, encoding using a polar code to obtain a first encoded sequence whose length is N. A sequence number of a polarization channel may range from 0 to N−1. The method includes determining, by the sending apparatus, P1 to-be-punctured bit positions. The method includes performing puncturing at the P1 bit positions in the first encoded sequence to obtain rate-matched encoded bits. The P1 to-be-punctured bit positions are bit positions corresponding to polarization channels 0 to PT1−1, PT1 to 3N/8−1, and/or N/2 to 5N/8−1, PT1 is a threshold of a quantity of to-be-punctured bit positions, and PT1≤N/4. The method includes sending the rate-matched encoded bits.

    Polar code encoding and decoding method and apparatus
    98.
    发明授权
    Polar code encoding and decoding method and apparatus 有权

    公开(公告)号：US11075653B2

    公开(公告)日：2021-07-27

    申请号：US16671763

    申请日：2019-11-01

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Ying Chen ,  Yunfei Qiao ,  Jun Wang ,  Gongzheng Zhang ,  Hejia Luo ,  Rong Li ,  Lingchen Huang

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

    Abstract: Embodiments of this application provide a polar code encoding and decoding method and apparatus. The method includes: obtaining an information bit set from a polar code construction sequence table based on an information bit length and a target code length of to-be-encoded information, where the polar code construction sequence table stores a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter, the construction sequence is a sequence representing an order of reliability of polarized channels, and the encoding parameter includes at least one of an aggregation level, the target code length, and a mother code length, or the encoding parameter is a maximum mother code length; and performing polarization encoding on the to-be-encoded information based on the to-be-encoded information and the information bit set.

    ENCODING METHOD AND DEVICE, AND APPARATUS
    99.
    发明申请
    ENCODING METHOD AND DEVICE, AND APPARATUS 有权

    公开(公告)号：US20210194504A1

    公开(公告)日：2021-06-24

    申请号：US17135061

    申请日：2020-12-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiaocheng Liu ,  Ying Chen ,  Rong Li

    IPC: H03M13/13 ,  H04L1/00 ,  H03M13/03 ,  H03M13/29 ,  H03M13/00

    Abstract: The present disclosure relates to encoding method and devices. One example method includes determining N to-be-encoded bits, where the N to-be-encoded bits include information bits and frozen bits, obtaining a first polarization weight vector including polarization weights of N polarized channels, where the N to-be-encoded bits correspond to the N polarized channels, determining positions of the information bits based on the first polarization weight vector, and performing polar encoding on the N to-be-encoded bits to obtain polar-encoded bits.

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