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    Data sending method and apparatus
    41.
    发明授权
    Data sending method and apparatus 有权

    公开(公告)号：US10135466B2

    公开(公告)日：2018-11-20

    申请号：US15337703

    申请日：2016-10-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhouhui Chen ,  Zheng Ma ,  Wei Lin

    IPC: H03M13/00 ,  H03M13/11 ,  H04B7/06 ,  H04L1/00

    Abstract: The present invention discloses a data sending method and apparatus, which resolves a problem that performance of a high coding rate LDPC code obtained in an existing puncturing manner based on a variable node degree distribution is relatively poor. The method includes: encoding, by using an LDPC code check matrix, an information bit that needs to be sent, to obtain a codeword sequence; determining a puncturing priority of each parity bit in the codeword sequence according to row destruction and/or cycle destruction, on the LDPC code check matrix, of a variable node corresponding to each parity bit; puncturing the codeword sequence according to the puncturing priority of each parity bit in the codeword sequence; and generating a bit sequence according to the punctured codeword sequence, and sending the bit sequence. In this way, performance of an obtained high coding rate LDPC code is improved.

    Low density parity check code encoding method and communication apparatus
    46.
    发明授权
    Low density parity check code encoding method and communication apparatus 有权

    公开(公告)号：US12218687B2

    公开(公告)日：2025-02-04

    申请号：US18523495

    申请日：2023-11-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Yan Xin

    IPC: H03M13/11 ,  H03M13/00

    Abstract: This application provides an LDPC code encoding method and a communication apparatus, to meet a requirement of increasing redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. In the method, a check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.

    LDPC code encoding method and communication apparatus
    48.
    发明授权
    LDPC code encoding method and communication apparatus 有权

    公开(公告)号：US11881870B2

    公开(公告)日：2024-01-23

    申请号：US17856645

    申请日：2022-07-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Yan Xin

    IPC: H03M13/00 ,  H03M13/11

    CPC classification number: H03M13/118 ,  H03M13/616

    Abstract: A low-density parity-check (LDPC) code encoding method and a communication apparatus are described that provide increased redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. A check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.

    Communication Method, Communication Apparatus, and Communication Device
    50.
    发明公开
    Communication Method, Communication Apparatus, and Communication Device 审中-公开

    公开(公告)号：US20230388073A1

    公开(公告)日：2023-11-30

    申请号：US18323107

    申请日：2023-05-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ming Gan ,  Wei Lin ,  Xun Yang

    IPC: H04L5/00 ,  H04L47/62

    CPC classification number: H04L5/0048 ,  H04L47/624 ,  H04W84/12

    Abstract: A communication method includes: generating an extremely high-throughput physical layer protocol data unit (EHT PPDU) that comprises a legacy physical layer preamble and a new physical layer preamble, wherein the legacy physical layer preamble comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), and a legacy signal (L-SIG) field in turn, and wherein a first field of the new physical layer preamble is a repeat of a field in the legacy physical layer preamble and is modulated by binary phase shift keying, BPSK; and sending the PPDU.

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