無線LANシステムにおけるチャネルサウンディング方法及びそれをサポートする装置

Japanese Patent JP5518264

B2

A method for a channel sounding in a wireless local area network is provided. The method includes transmitting a null data packet announcement (NDPA) frame, to a plurality of receivers, the NDPA frame requesting a channel statement information feedback and announcing that a null data packet (NDP) frame is to be transmitted; transmitting the NDP frame being a basis of channel estimation for the plurality of receivers; receiving a first feedback frame from a first receiver among the plurality of receivers, transmitting a feedback poll frame to a second receiver; and, receiving a second feedback frame from the second receiver, the second feedback frame including second channel state information estimated by the second receiver. If the first receiver fails to perform the channel estimation, the first feedback frame is a null feedback frame. The null feedback frame is a feedback frame not including channel state information.

WO/2022/143350	CHANNEL STATE INFORMATION REPORTING METHOD, RESOURCE CONFIGURATION METHOD, COMMUNICATION NODE, AND STORAGE MEDIUM
WO/2021/043104	METHOD AND APPARATUS FOR REPORTING BUFFER STATUS REPORT, AND USER TERMINAL AND COMPUTER-READABLE STORAGE MEDIUM
JP2022046663	COMMUNICATION METHOD AND DEVICE

Song, Il Soo
Suk, Yongho
Park, John Hyun
Lee, Da Won
Kang, Byung Woo

JP2013538670A

June 11, 2014

December 27, 2011

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LG ELECTRONICS INC.

H04W24/10; H04J99/00; H04W72/04; H04W84/12

JP2012531793A
JP2009543471A

WO2010150950A1
US20100271992

Hidesaku Yamamoto
Natsuki Morishita

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