Patent ID: 7535881
Filing Date: 2009-05-19
Classification: H04W,Y02D

Abstract:
1. A communication terminal which searches for another communication terminal, comprising: a transmission control unit which controls a transmission mode in which a broadcast signal is transmitted a plurality of times at predetermined intervals; a transmission unit which transmits the broadcast signal; a reception control unit which controls a reception mode in which another broadcast signal transmitted from another communication terminal is monitored for a period of time longer than an interval between the times the broadcast signal is transmitted in the transmission mode; a reception unit which receives the other broadcast signal transmitted from the other communication terminal; a mode control unit which controls when the transmission control unit starts the transmission mode and when the reception control unit starts the reception mode; and a power control unit which controls power for transition from a running state to a power-saving state after the transmission unit transmits the broadcast signal, and which controls power for transition from the power-saving state to the running state before a next time the transmission unit transmits the broadcast signal in the transmission mode, wherein the mode control unit executes a standby mode in which the transmission mode and the reception mode are alternately executed in a single cycle, and a time for execution of the transmission mode in the cycle is set to be longer than a time for execution of the reception mode in the cycle.