Title:
METHOD AND APPARATUS FOR INDICATING DESTINATION STATIONS IN WLAN SYSTEM SUPPORTING MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT
Document Type and Number:
WIPO Patent Application WO/2011/005004
Kind Code:
A3
Abstract:
A method of indicating destination stations, performed by an access point (AP), in a wireless local area network (WLAN) system supporting multi-user multiple input multiple output (MU-MIMO)is provided. The method includes transmitting a sounding request frame to the plurality of destination stations to transmit a sounding frame used for channel estimation between the AP and each destination station, receiving the sounding frame in response to the sounding frame request from each station, and transmitting a first data frame spatially multiplexed with respect to the plurality of destination stations by performing channel estimation on the basis of the sounding frame, wherein the sounding request frame comprises a group identifier (ID) indicating the plurality of destination stations.
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Inventors:
SEOK YONG HO (KR)
KANG BYEONG WOO (KR)
NOH YU JIN (KR)
LEE DAE WON (KR)
KANG BYEONG WOO (KR)
NOH YU JIN (KR)
LEE DAE WON (KR)
Application Number:
PCT/KR2010/004384
Publication Date:
April 28, 2011
Filing Date:
July 06, 2010
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
SEOK YONG HO (KR)
KANG BYEONG WOO (KR)
NOH YU JIN (KR)
LEE DAE WON (KR)
SEOK YONG HO (KR)
KANG BYEONG WOO (KR)
NOH YU JIN (KR)
LEE DAE WON (KR)
International Classes:
H04B7/04
Domestic Patent References:
| WO2009027931A2 | 2009-03-05 |
Foreign References:
| US20070206504A1 | 2007-09-06 | |||
| US20070135059A1 | 2007-06-14 |
Attorney, Agent or Firm:
YANG, Moon Ock (2F. Samheung Yeoksam Bldg.735-10 Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)
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