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    DATA TRANSMISSION METHOD, DATA SENDING DEVICE, AND DATA RECEIVING DEVICE
    5.
    发明申请
    DATA TRANSMISSION METHOD, DATA SENDING DEVICE, AND DATA RECEIVING DEVICE 审中-公开

    公开(公告)号：US20190305885A1

    公开(公告)日：2019-10-03

    申请号：US16446237

    申请日：2019-06-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaojian LIU ,  Yuejun WEI ,  Xin ZENG

    IPC: H04L1/00 ,  H03M13/11

    Abstract: A data transmission method, a data sending device, and a data receiving device are provided. The method includes: encoding, by a data sending device, information data by using a low-density parity-check (LDPC) code matrix, to obtain a bit sequence, where the bit sequence includes a first bit sequence, and the first bit sequence includes at least one information bit in the bit sequence; interleaving, the first bit sequence to obtain a first interleaved bit sequence; performing, modulation based on the first interleaved bit sequence to obtain a sending signal, and sending the sending signal. The method also includes: demodulating, by a data receiving device, a receiving signal to obtain a soft value sequence; and de-interleaving, the soft value sequence, to obtain a soft value sequence of a first bit sequence. This can improve a capability of an LDPC code resisting burst interference.

    DATA TRANSMISSION METHOD, SENDING DEVICE, AND RECEIVING DEVICE
    6.
    发明申请
    DATA TRANSMISSION METHOD, SENDING DEVICE, AND RECEIVING DEVICE 审中-公开

    公开(公告)号：US20190296768A1

    公开(公告)日：2019-09-26

    申请号：US16436912

    申请日：2019-06-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Liang MA ,  Yuejun WEI

    IPC: H03M13/11 ,  H03M13/09 ,  H04L1/00 ,  H03M13/37

    Abstract: A data transmission method, a sending device, and a receiving device are provided. A sending device obtains information data, encodes the information data by using a quasi-cyclic low-density parity-check (LDPC) code matrix, modulates the encoded data to obtain first data, and sends the first data. A receiving device obtains second data, demodulates the second data to obtain to-be-decoded data, and decodes the to-be-decoded data by using a block matrix in an LDPC code matrix, where the block matrix is a submatrix in the quasi-cyclic LDPC matrix, and in the quasi-cyclic LDPC matrix, a row weight of a row (H−1) is greater than or equal to a row weight of a row H, or a row weight of a row (H−1) is less than or equal to a row weight of a row H. In this way, decoding efficiency can be improved.

    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE
    10.
    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.

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