Patent attributes
A communication terminal is provided with a transmission control unit for controlling a transmission mode in which a broadcast signal is transmitted a plurality of times, and a reception control unit for controlling a reception mode in which the broadcast signal transmitted from another communication terminal is monitored. The transmission control unit and the reception control unit execute the transmission mode and the reception mode cyclically and alternately. To achieve power saving, time reserved for execution of the transmission mode in a cycle is set to be longer than time reserved for execution of the reception mode in the cycle.