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Registered The beamforming system by using multiple antenna and OFDM

다중안테나 및 OFDM을 이용한 beamforming 시스템 및 방법
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Inventors
Son Jungbo, Chung Hyun Kyu, Sok-Kyu Lee
Application No.
12970157 (2010.12.16)
Publication No.
20110149856 (2011.06.23)
Registration No.
8599753 (2013.12.03)
Country
UNITED STATES
Project Code
09MR7300, Research on Radio Transmission Technology for IEEE 802.11 VHT WLAN, Sok-Kyu Lee
Abstract
A data receiving apparatus includes a receiving unit configured to receive a beacon packet from at least one base station, a searching unit configured to search an index of a subchannel including an optimal channel state among subchannels allocated to a sector divided through spatial multiplexing based on the base station using the beacon packet, a calculating unit configured to calculate a final back off time by adding a slot time of the subchannel index and a random time, and a transmitting unit configured to include the searched subchannel index in a beacon response packet and transmit the beacon response packet after the calculated final back off time.
KSP Keywords
Beamforming system, Channel state, Off time, back-off, base station, multiple antennas, spatial multiplexing(SMX)
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Status Patent Country KIPRIS
Registered 무선 통신 시스템에서 데이터 수신 장치 및 방법 KOREA KIPRIS