| 摘要 |
<p>In a mobile communication system according to the present invention, a serving base station: receives, from at least one adjacent base station, beamforming information including information on a frame period in which data is transmitted using beamforming for each frequency band; determines, on the basis of the received beamforming information, whether or not a beamforming transmission mode is a nulling mode, in which null data is transmitted to at least one mobile terminal from among a plurality of mobile terminals included in a cell of the serving base station; when the beamforming transmission mode of the at least one adjacent base station is the nulling mode, determines whether or not a response signal, which is received from the at least one mobile terminal, is generated due to an interference signal by the at least one adjacent base station; and determines whether or not to update a backoff factor value on the basis of the determined result.</p> |
