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Title:
METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/135557
Kind Code:
A1
Abstract:
Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.

Inventors:
PARK, Sungjin (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)
YUN, Sunwoong (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:
KR2018/016836
Publication Date:
July 11, 2019
Filing Date:
December 28, 2018
Export Citation:
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Assignee:
LG ELECTRONICS INC. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H04B7/0417; H04B7/06; H04J3/16
Domestic Patent References:
WO2011059248A22011-05-19
Foreign References:
KR20140097104A2014-08-06
Other References:
HUANG, LEI ET AL.: "SU -MIMO Beamforming Optimization", IEEE 802.11-17/1233R1, 20 December 2017 (2017-12-20)
TORAB, PAYAM ET AL.: "Beamforming Protocol Differences for nunWave Distribution Networks", IEEE 802.1 1-17/1841R0, 12 December 2017 (2017-12-12), XP068122622
OTERI, KOME ET AL.: "Hybrid Beamforming Protocol Design Details", IEEE 802.11-17/1689R1, 9 November 2017 (2017-11-09), XP068122423
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (5F 124, Teheran-roGangnam-gu, Seoul, 06234, KR)
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