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    LDPC CODE ENCODING METHOD AND COMMUNICATION DEVICE
    3.
    发明公开
    LDPC CODE ENCODING METHOD AND COMMUNICATION DEVICE 审中-公开

    公开(公告)号：EP4072024A1

    公开(公告)日：2022-10-12

    申请号：EP20911294.5

    申请日：2020-12-31

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： MONTORSI, Guido ,  BENEDETTO, Sergio ,  LIN, Wei ,  XIN, Yan

    IPC分类号： H03M13/11

    摘要： 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.

    BEAM TRAINING METHOD AND APPARATUS
    4.
    发明公开
    BEAM TRAINING METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3965311A1

    公开(公告)日：2022-03-09

    申请号：EP20822865.0

    申请日：2020-06-02

    申请人： Huawei Technologies Co., Ltd.

    发明人： HAN, Xiao ,  LI, Weizhi ,  GUO, Ziyang ,  LONG, Yan ,  YAN, Li ,  MA, Mengyao ,  XIN, Yan

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W72/04

    摘要： This application provides a beam training method and apparatus that can reduce a beam training delay and improve communication service quality. The method includes: A member access point (M-AP) generates a plurality of beacon frames, where a transmitter address of each beacon frame in the plurality of beacon frames is a media access control (MAC) address of a control AP, an antenna port identifier of each beacon frame in the plurality of beacon frames is an antenna port identifier uniformly allocated by the control AP, an association beamforming training (A-BFT) start time point in each beacon frame in the plurality of beacon frames is the same as an A-BFT start time point in a beacon frame sent by another M-AP, each beacon frame in the plurality of beacon frames further includes a number of beacon frames sent by the M-AP, the control AP is an AP other than the M-AP in a plurality of APs, and the control AP can communicate with the plurality of APs; and the M-AP sends the plurality of beacon frames.