NSIP Law
Method for transmitting frame using selective beamforming and apparatus for performing the method
Disclosed are a frame transmission method using a selective beamforming and a communication apparatus to perform the frame transmission method. The communication apparatus may determine a beamforming matrix based on classification information in which a plurality of subcarriers used for communication is classified into a plurality of frequency units, may map a long training field (LTF) sequence to the beamforming matrix, and transmit a beamforming training (BF-T) frame including the mapped LTF sequence to a plurality of stations, may receive, from the plurality of stations having receiving the BF-T frame, feedback information generated based on a reception strength of the BF-T frame, and may allocate frequency units to data frames to be transmitted to the plurality of stations based on the feedback information, and transmit the data frames using the allocated frequency units. The reception strength of the BF-T frame may be determined at each station for each frequency unit.
Electronics and Telecommunications Research Institute
H H H H H
H04B H04W H04W H04W H04B
inventional additional inventional additional inventional
Jae Woo Jae Seung Seung Chan Jee Yon Il Gyu Yu Ro
Park Lee Bang Choi Kim Lee