METHOD AND DEVICE FOR REQUESTING FEEDBACK OF SOME BANDS THROUGH NDPA FRAME FOR BANDS EXCEEDING 320MHZ IN WLAN SYSTEM

WIPO Patent Application WO/2023/167501

A1

A method and a device for transmitting a feedback frame in a wireless LAN system are proposed. Specifically, a receiving STA receives an NDPA frame from a transmitting STA over a wide band. The receiving STA receives an NDP frame from the transmitting STA. The receiving STA transmits a feedback frame to the transmitting STA on the basis of the NDPA frame and the NDP frame. The NDPA frame includes an STA information field for the receiving STA. The STA information field includes information about some bands and a reserved bit. When the wideband has a bandwidth exceeding 320 MHz, the reserved bit is set to 1, and a channel unit requesting feedback information is set to 80 MHz.

LIM DONGGUK (KR)
CHUN JINYOUNG (KR)
CHOI JINSOO (KR)
PARK EUNSUNG (KR)
JUNG INSIK (KR)

PCT/KR2023/002850

September 07, 2023

March 02, 2023

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LG ELECTRONICS INC (KR)

H04W72/04; H04B7/0413; H04L1/00; H04L5/00; H04W72/23; H04W72/54; H04W84/12

US20220038241A1	2022-02-03
US20210409078A1	2021-12-30
US20170054542A1	2017-02-23

LEE WOOK BONG, CAO RUI: "Proposed Draft Text (PDT-Joint): Fix TBDs in Spatial Stream and MIMO Protocol Enhancement Part 1 ", IEEE.802.11-21/0137R4, 20 January 2021 (2021-01-20), pages 1 - 22, XP093088566
EUNSUNG PARK , DONGGUK LIM , JINYOUNG CHUN , JINSOO CHOI: "Partial BW Info Field Design in NDPA", IEEE 802.11-20/1814R4, IEEE, 1 January 2021 (2021-01-01), pages 1 - 16, XP009540719

ENVISION PATENT & LAW FIRM (KR)

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