Title:
METHOD FOR REPORTING CHANNEL INFORMATION IN WIRELESS LAN SYSTEM AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/093132
Kind Code:
A1
Abstract:
A method for reporting channel information by a station (STA) in a wireless LAN (WLAN) system according to an embodiment of the present invention comprises the steps of: receiving a null data packet announcement (NDP-A) frame from a first access point (AP); when it is determined that the NDP-A frame is for joint transmission of a plurality of APs, measuring a channel for a first AP having transmitted the NDP-A frame and a channel for at least one second AP channel which has not transmitted the NDP-A frame; and transmitting channel information for the plurality of APs, which has been acquired according to a result of the channel measurement, to the first AP, wherein when the NDP-A frame is for the joint transmission, the STA can acquire channel information relating to the plurality of APs through a plurality of NDP frames received from the plurality of APs after receiving the NDP-A frame one time.
Inventors:
LIM DONGGUK (KR)
PARK EUNSUNG (KR)
YUN SUNWOONG (KR)
CHO HANGYU (KR)
CHOI JINSOO (KR)
PARK EUNSUNG (KR)
YUN SUNWOONG (KR)
CHO HANGYU (KR)
CHOI JINSOO (KR)
Application Number:
PCT/KR2017/012919
Publication Date:
May 24, 2018
Filing Date:
November 15, 2017
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W24/10; H04B7/024; H04B17/24; H04W74/08; H04W84/12
Domestic Patent References:
| WO2016167608A1 | 2016-10-20 |
Foreign References:
| US20160286477A1 | 2016-09-29 | |||
| US20140056205A1 | 2014-02-27 | |||
| US20140086200A1 | 2014-03-27 | |||
| US20160316424A1 | 2016-10-27 |
Other References:
See also references of EP 3525511A4
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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