公开(公告)号：US20240154738A1

公开(公告)日：2024-05-09

申请号：US18416260

申请日：2024-01-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0046 ,  H04L5/0048

Abstract: 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.

公开(公告)号：US20230216553A1

公开(公告)日：2023-07-06

申请号：US18181765

申请日：2023-03-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Oded REDLICH ,  Shimon SHILO ,  Jian YU ,  Doron EZRI ,  Avner EPSTEIN ,  Arik KLEIN ,  Genadiy TSODIK

IPC: H04B7/0452 ,  H04B7/06 ,  H04W72/563

CPC classification number: H04B7/0452 ,  H04B7/0628 ,  H04W72/563

Abstract: A wireless transmitting device is configured to: obtain a compressed-mode PPDU that includes one or more SC fields, where each SC field corresponds to one MU-MIMO group of the one or more MU-MIMO groups and is indicative of a spatial stream configuration for user devices of that MU-MIMO group; and transmit the PPDU to the user devices of the one or more MU-MIMO groups over a predetermined BW. Further, a user device is configured to: receive a compressed-mode PPDU from a wireless transmitting device; and decode the PPDU to obtain a SC field corresponding to the MU-MIMO group that the user device belongs to.