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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 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 COMMUNICATIONS APPARATUS
    12.
    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.

    DATA TRANSMISSION METHOD, SENDING DEVICE, RECEIVING DEVICE, AND COMMUNICATIONS SYSTEM
    15.
    发明申请
    DATA TRANSMISSION METHOD, SENDING DEVICE, RECEIVING DEVICE, AND COMMUNICATIONS SYSTEM 审中-公开

    公开(公告)号：US20190288708A1

    公开(公告)日：2019-09-19

    申请号：US16433985

    申请日：2019-06-06

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H03M13/11 ,  H04L1/00

    Abstract: This application discloses a data transmission method, a sending device, a receiving device, and a communications system. The sending device is configured to send a first transport block. The sending device obtains a coded bit segment from a first encoded code block. The first encoded code block is obtained after LDPC encoding is performed on a first code block in the first transport block based on a processing capability of the receiving device. The sending device sends the coded bit segment to the receiving device. Because the processing capability of the receiving device is considered, storage overheads of the sending device or the receiving device can be reduced, encoding or decoding complexity can be reduced, and a decoding success rate can be improved.

    Method and Apparatus for Generating Low-Density Parity-Check Code Basis Matrix
    16.
    发明申请
    Method and Apparatus for Generating Low-Density Parity-Check Code Basis Matrix 审中-公开

    公开(公告)号：US20190173494A1

    公开(公告)日：2019-06-06

    申请号：US16251182

    申请日：2019-01-18

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H03M13/11

    Abstract: The present disclosure relates to methods and apparatuses for generating a low-density parity-check code basis matrix. One example method includes obtaining a low-density parity-check code mother matrix, and generating a 1st matrix to a qth matrix one by one, where q is a preset positive integer. A Pth matrix in the 1st matrix to the qth matrix is generated in the following manner: selecting a to-be-replaced matrix element in a (P−1)th matrix, where the to-be-replaced matrix element is a matrix element having a value that is not −1 in the (P−1)th matrix, determining a Pth shift factor corresponding to the to-be-replaced matrix element, and replacing the to-be-replaced matrix element in the (P−1)th matrix with the Pth shift factor to obtain the Pth matrix whose cycle length property is better than a cycle length property of the (P−1)th matrix.

    DATA TRANSMISSION METHOD, BASE STATION, AND TERMINAL DEVICE
    18.
    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
    19.
    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.

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