Patent ID: 7995536

Claim:
A wireless receiving station that receives a signal from a first wireless transmitting station and a signal from a second wireless transmitting station which is different from the first wireless transmitting station in a case of receiving the signal from the first wireless transmitting station as a communication party of the wireless receiving station by a communication slot that is assigned to the wireless receiving station, the wireless receiving station, comprising: a plurality of receiving antennas; a demodulator unit that estimates a propagation path of at least one of a plurality of received signals which are received by the plurality of receiving antennas, and demodulates the plurality of received signals by using the estimation result; and a discriminating unit that discriminates a number of transmitting antennas to be used in the first wireless transmitting station in the communication slot which is assigned to the wireless receiving station, wherein in a case where a number of propagation paths that are generated between the first wireless transmitting station and the wireless receiving station, which is determined according to the number of transmitting antennas, is smaller than a number of propagation paths that can be estimated by the demodulator unit, the demodulator unit estimates the propagation path between the wireless receiving station and the first wireless transmitting station by using the signal from the first wireless transmitting station, estimates the propagation path between the wireless receiving station and the second wireless transmitting station by using the signal from the second wireless transmitting station, and estimate the signals that are transmitted from the first and second wireless transmitting stations by using the propagation path estimated values which are obtained from the propagation path estimations.