Patent ID: 8923764

Claim:
A mobile terminal device comprising: a receiver configured to receive directly one or more radio signals transmitted from one or more other mobile terminal devices, each of the radio signals including one or more radio communication conditions determined by each of the one or more other mobile terminal devices for use in communication with a base station; a processor coupled to the receiver and configured to: acquire a plurality of radio communication conditions for use in communication with the base station, from the one or more radio signals, each of the plurality of radio communication conditions including a radio access technology for use in communication with the base station among a plurality of radio access technologies, determine priority between the plurality of radio access technologies of the plurality of radio communication conditions, in accordance with a number of times that each of the plurality of radio communication conditions including each of the plurality of radio access technologies is received from the one or more other mobile terminal devices, set one of the plurality of radio communication conditions currently available in order of the priority for use in communication with the base station, wherein each of the plurality of radio communication conditions includes a combination of the radio access technology and a frequency band among a plurality of frequency bands, and the processor is configured to determine priority between a plurality of combinations each including the radio access technology and the frequency band, in accordance with a number of times that each of the plurality of radio communication conditions including each of the plurality of combinations is received from the one or more other mobile terminal devices.