METHOD AND DEVICE FOR TRANSMITTING EHT PPDU IN WIRELESS LAN SYSTEM

WIPO Patent Application WO/2020/096349

A1

Proposed are a method and device for transmitting EHT PPDU in a wireless LAN system. Particularly, a transmission STA generates first and second LTF symbols. The transmission STA transmits EHT PPDU comprising the first and second LTF symbols to a reception STA. The first and second LTF symbols are generated on the basis of an LTF sequence for first to fourth spatial streams. In the first LTF symbol, the LTF sequence for the first to fourth spatial streams is mapped to tones in four tone units in a frequency domain. In the second LTF symbol, the LTF sequence for the first to fourth spatial streams is mapped to tones in four tone units in a frequency domain. The LTF sequence, for the first to fourth spatial streams, mapped to the frequency domain of the second LTF symbol is mapped to a tone by means of cyclic shifting, by two tones, the LTF sequence, for the first to fourth spatial streams, mapped to the frequency domain of the first LTF symbol.

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LIM DONGGUK (KR)
CHOI JINSOO (KR)
KIM JINMIN (KR)
PARK EUNSUNG (KR)
YUN SUNWOONG (KR)

PCT/KR2019/014983

May 14, 2020

November 06, 2019

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LG ELECTRONICS INC (KR)

H04L27/26; H04L25/02

WO2016125999A1

2016-08-11

US20150023335A1	2015-01-22
US20170338919A1	2017-11-23
US20180191546A1	2018-07-05

SCHELSTRAETE, SIGURD ET AL.: "MU sounding improvements", IEEE 80211-18/1191, 8 July 2018 (2018-07-08), XP068128292

ENVISION PATENT & LAW FIRM (KR)

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