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    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE
    11.
    发明申请
    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE 审中-公开

    公开(公告)号：US20200067641A1

    公开(公告)日：2020-02-27

    申请号：US16673613

    申请日：2019-11-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liang MA ,  Xin ZENG ,  Chen ZHENG ,  Yuejun WEI

    IPC: H04L1/00 ,  H04W72/04

    Abstract: This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like low-density parity-check (LDPC) base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.

    COMMUNICATIONS METHOD AND APPARATUS
    13.
    发明申请
    COMMUNICATIONS METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20190393978A1

    公开(公告)日：2019-12-26

    申请号：US16562389

    申请日：2019-09-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen ZHENG ,  Liang MA ,  Yuejun WEI ,  Xin ZENG

    IPC: H04L1/00 ,  H04L1/18

    Abstract: Embodiments of this application provide a communications method and apparatus. The method includes: obtaining an input sequence for rate matching, wherein the input sequence is a retransmission sequence corresponding to a transport block, the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ct code blocks; and performing rate matching on the Ct code blocks, wherein a length of a rate matching output sequence of of each of the Ct code blocks satisfies the following conditions: when j≤Ct−γ−1, E=NL·Qm·└G′/Ct┘; when j>Ct−γ−1, E=NL·Qm·┌G′/Ct┐. The method may be applicable to a system in which transmission is performed based on a code block group, and resources are fully used as many as possible, thereby improving performance.

    APPARATUS AND METHOD FOR CHANNEL CODING IN COMMUNICATION SYSTEM
    14.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL CODING IN COMMUNICATION SYSTEM 有权

    公开(公告)号：US20220352903A1

    公开(公告)日：2022-11-03

    申请号：US17742183

    申请日：2022-05-11

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chen ZHENG ,  Liang MA ,  Xiaojian LIU ,  Yuejun WEI ,  Xin ZENG

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

    Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE
    15.
    发明申请
    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE 有权

    公开(公告)号：US20210359786A1

    公开(公告)日：2021-11-18

    申请号：US17389004

    申请日：2021-07-29

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liang MA ,  Xin ZENG ,  Chen ZHENG ,  Yuejun WEI

    IPC: H04L1/00 ,  H04W72/04 ,  H03M13/11 ,  H03M13/25 ,  H03M13/00

    Abstract: This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like LDPC base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.

    INFORMATION PROCESSING METHOD AND WIRELESS TRANSMISSION DEVICE
    16.
    发明申请
    INFORMATION PROCESSING METHOD AND WIRELESS TRANSMISSION DEVICE 审中-公开

    公开(公告)号：US20200280389A1

    公开(公告)日：2020-09-03

    申请号：US16875766

    申请日：2020-05-15

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Liang MA ,  Xin ZENG ,  Yuejun WEI

    IPC: H04L1/00 ,  H04W72/04 ,  H04L27/18 ,  H04L27/34

    Abstract: Embodiments of this application provide an information processing method and a wireless transmission device. The method includes: obtaining, by a wireless transmission device, a target modulation and coding scheme MCS level; determining, by the wireless transmission device based on a correspondence among MCS levels, modulation schemes, and transport block parameters, a target modulation scheme and a target transport block parameter that correspond to the target MCS level; and performing, by the wireless transmission device, low-density parity-check code LDPC coding or decoding on a transport block based on the target modulation scheme and the target transport block parameter. According to the foregoing technical solution, a wireless transmission device in a system in which LDPC coding is used may perform LDPC coding or decoding on a transport block.

    INFORMATION PROCESSING METHOD AND COMMUNICATIONS APPARATUS
    17.
    发明申请
    INFORMATION PROCESSING METHOD AND COMMUNICATIONS APPARATUS 审中-公开

    公开(公告)号：US20200091934A1

    公开(公告)日：2020-03-19

    申请号：US16691281

    申请日：2019-11-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Chen ZHENG ,  Yuejun WEI ,  Liang MA ,  Xiaojian LIU ,  Xin ZENG

    IPC: H03M13/11 ,  H03M13/27

    Abstract: This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low-density parity-check (LDPC) matrix, to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented as a matrix of m rows and n columns, each column corresponds to a group of Z consecutive bits in the bit sequence D, and n and Z are both integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting two groups of bits corresponding to at least two parity check columns in the bit sequence D.

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