Patent ID: 8369789

Claim:
A wireless communication system comprising a wireless communication system A and a wireless communication system B which use a same frequency channel in mutually adjacent or overlapping wireless areas and an interference cancelling station ICS installed in a location different from locations of base stations and mobile stations of the wireless communication systems A and B, wherein the interference cancelling station ICS comprises: a transmission weight factor calculating unit calculating a transmission weight factor w 2 of the interference cancelling station ICS by using a first information corresponding to a propagation path between a mobile station MSa of the wireless communication system A and a base station BSb of the wireless communication system B and a second information corresponding to a propagation path between the mobile station MSa of the wireless communication system A and the interference cancelling station ICS; and an interference cancelling data signal transmitting unit generating an interference cancelling data signal by multiplying, by the transmission weight factor w 2 , a data signal which the base station BSb of the wireless communication system B transmits to a subordinate mobile station, and transmitting the interference cancelling data signal in synchronization with timing with which the base station BSb of the wireless communication system B transmits the data signal, in which the interference cancelling data signal (D′) and the data signal (D) of the base station BSb are in reverse phase at a reception point of the mobile station MSa, such that the mobile station MSa of the wireless communication system A receives a data signal transmitted by a base station BSa of the wireless communication system A having cancelled interference.