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    COMMUNICATION METHOD AND APPARATUS
    6.
    发明公开
    COMMUNICATION METHOD AND APPARATUS 审中-实审 转让

    公开(公告)号：EP4366256A1

    公开(公告)日：2024-05-08

    申请号：EP22844892.4

    申请日：2022-04-14

    申请人： Huawei Technologies Co., Ltd.

    发明人： YU, Jian ,  EPSTEIN, Avner ,  TSODIK, Genadiy ,  SHILO, Shimon ,  KLEIN, Arik ,  REDLICH, Oded ,  HU, Mengshi

    IPC分类号： H04L27/26

    CPC分类号： H04L27/26

    摘要： This application provides a communication method and apparatus, and relates to the communication field. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a first field indicating that the PPDU is an extremely high throughput sounding null data packet EHT sounding NDP transmitted based on orthogonal frequency division multiple access OFDMA, the PPDU further includes an extremely high throughput-long training field EHT-LTF and a packet extension PE field, and the PE field is adjacent to the EHT-LTF; and sending the PPDU. In this way, a Bfee may determine, based on the first field in the PPDU, that the PPDU is the EHT sounding NDP transmitted based on OFDMA, perform channel estimation by using the PPDU, and feed back channel state information to a Bfer, to implement functions such as beamforming and resource scheduling for OFDMA transmission, thereby improving channel quality and a throughput. This application is applied to a wireless local area network system supporting IEEE 802.11ax next-generation Wi-Fi protocols, for example, the 802.11 series protocols such as the 802.11be or the EHT.