COMMUNICATION METHOD AND APPARATUS

Title:

COMMUNICATION METHOD AND APPARATUS

Document Type and Number:

WIPO Patent Application WO/2023/000720

Kind Code:

A1

Abstract:

The present application relates to the field of communications. Provided are a communication method and apparatus. The method comprises: generating a physical layer protocol data unit (PPDU), wherein the PPDU comprises a first field indicating that the PPDU is an extremely high throughput sounding null data packet (EHT sounding NDP) based on orthogonal frequency division multiple access (OFDMA) transmission, and the PPDU further comprises an extremely high throughput-long training field (EHT-LTF) and a data package extension field (PE), the PE being adjacent to the EHT-LTF; and sending the PPDU. Therefore, a Bfee may determine, according to a first field in a PPDU, that the PPDU is an EHT sounding NDP based on OFDMA transmission; and then channel estimation is performed by means of the PPDU, and channel state information is fed back to a Bfer, so as to achieve functions, such as beamforming and resource scheduling, for OFDMA transmission, thereby improving the channel quality and increasing the throughput. The present application is applied to a wireless local area network system that supports IEEE 802.11ax next-generation WiFi protocols, for example, 802.11 series protocols such as 802.11be or EHT.

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Inventors:

YU JIAN (CN)
EPSTEIN AVNER (CN)
TSODIK GENADIY (CN)
SHILO SHIMON (CN)
KLEIN ARIK (CN)
REDLICH ODED (CN)
HU MENGSHI (CN)

Application Number:

PCT/CN2022/086811

Publication Date:

January 26, 2023

Filing Date:

April 14, 2022

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04L27/26

Domestic Patent References:

WO2021086263A1

2021-05-06

Foreign References:

US20200177425A1	2020-06-04
CN111713068A	2020-09-25
CN111669204A	2020-09-15
CN202110815897A	2021-07-19

Attorney, Agent or Firm:

BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)

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