Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program

A receiving station comprising:

• request signal receiving means for receiving a request signal transmitted from a transmitting station through a communication path with an intermediary of at least one relay station or through a communication path without an intermediary of a relay station;
• interference level measuring means for measuring an interference level at the receiving station when the request signal receiving means receives a request signal;
• communication propriety determining means for determining whether it is possible to perform communication at a communication speed included in the request signal, based on the interference level measured by the interference level measuring means;
• and
• request response signal transmitting means for transmitting a request response signal containing information on propriety of communication determined by the communication propriety determining means, through the communication path to the transmitting station.

A receiving station comprising:

• request signal receiving means for receiving a request signal transmitted from the transmitting station or from a relay station;
• interference level measuring means for measuring an interference level at the receiving station when the request signal receiving means receives a request signal;
• interstation communication speed determining means for determining an interstation communication speed between the receiving station and the transmitting station or the relay station as a source of the request signal, based on the interference level measured by the interference level measuring means;
• and
• request response signal transmitting means for transmitting a request response signal containing the interstation communication speed information determined by the interstation communication speed determining means, to the transmitting station or the relay station as a source of the request signal.