Patent ID: 7630738

Claim:
A radio communication system comprising a transmitting station which transmits an azimuth designation signal having directivity toward a predetermined reference azimuth, and a plurality of transmitting/receiving stations which can receive said azimuth designation signal transmitted from said transmitting station, wherein a target transmitting/receiving station, included in said plurality of transmitting/receiving stations, comprises: a receiving section that receives said azimuth designation signal transmitted from said transmitting station; an arrival direction obtaining section that obtains an arrival direction of said azimuth designation signal received by said receiving section; an azimuth designation signal generating section that generates a new azimuth designation signal having directivity in a direction determined by said arrival direction of said azimuth designation signal obtained by said arrival direction obtaining section; and a transmitting section that transmits said new azimuth designation signal generated by said azimuth designation signal generating section, in such a manner that said new azimuth designation signal has a directivity in a direction designated by said new azimuth designation signal.