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Patent Searching and Data


Title:
METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN WIRELESS LAN SYSTEM AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/156513
Kind Code:
A1
Abstract:
Proposed are a method and a device for transmitting a feedback frame by carrying out a MIMO beamforming procedure in a wireless LAN system. Specifically, a first STA generates a feedback frame on the basis of a MIMO beamforming procedure. The first STA transmits the feedback frame to a second STA. The feedback frame includes a feedback subcarrier for a predetermined frequency band. A first subcarrier, being the first to be transmitted from the feedback subcarrier, and a second subcarrier, having a subcarrier index of -2 and 2, are statically transmitted. The first subcarrier is configured as a left-edge subcarrier or a right-edge subcarrier of the predetermined frequency band. A subcarrier index of a third subcarrier included in the feedback subcarrier is determined on the basis of a grouping value representing subcarrier spacing. The third subcarrier is a subcarrier in the feedback subcarrier other than the first subcarrier and the second subcarrier. The grouping value dynamically varies on the basis of channel state information.

Inventors:
YUN, Sunwoong (IP Center, LG Electronics Inc.19, Yangjae-daero 11-gil,Seocho-gu, Seoul, 06772, KR)
KIM, Jinmin (IP Center, LG Electronics Inc.19, Yangjae-daero 11-gil,Seocho-gu, Seoul, 06772, KR)
PARK, Sungjin (IP Center, LG Electronics Inc.19, Yangjae-daero 11-gil,Seocho-gu, Seoul, 06772, KR)
CHOI, Jinsoo (IP Center, LG Electronics Inc.19, Yangjae-daero 11-gil,Seocho-gu, Seoul, 06772, KR)
Application Number:
KR2019/001607
Publication Date:
August 15, 2019
Filing Date:
February 11, 2019
Export Citation:
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Assignee:
LG ELECTRONICS INC. (128 Yeoui-daero, Yeongdeungpo-guSeoul, 07336, KR)
International Classes:
H04B7/06; H04B7/0417; H04L5/00
Foreign References:
US20170111148A12017-04-20
US20160204960A12016-07-14
US20160380729A12016-12-29
US20140093005A12014-04-03
US20170033898A12017-02-02
Other References:
See also references of EP 3550736A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (5F 124, Teheran-roGangnam-gu, Seoul, 06234, KR)
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