Patent ID: 8548535

Claim:
A mobile communication terminal comprising: a first control unit configured to execute a communication; a second control unit configured to execute an application program; and a timer unit configured to generate an interrupt signal when a count value equals a timer value set by the first control unit, wherein, when a request for changing the second control unit to a sleep state is received from the application program, the second control unit transmits first information containing a sleep time to the first control unit and changes to a sleep state, the sleep time indicating a recovering timing for the second control unit to wake up from the sleep state, and the first control unit sets the timer value in the timer unit to the sleep time based on the first information and transmits, to the second control unit, second information indicating a request for waking the second control unit when the interrupt signal is generated by the timer unit, and wherein, each time the first control unit is activated from a sleep state at intervals of a predetermined intermittent reception period, the first control unit determines whether the sleep time based on the first information expires, and the first control unit transmits the second information to the second control unit only when the sleep time is determined as expiring, and does not transmit the second information to the second control unit when the sleep time is determined as not expiring.