A state-transition-timer setting system includes: an acquiring unit that acquires prediction information on the amount of traffic of a mobile equipment; a timer determining unit that determines a state transition timer for a time after which a state of the mobile equipment is caused to transition from a communication state to a power-saving state, based on the prediction information; and a timer setting unit that sets the state transition timer for the mobile equipment. The state transition timer includes either one of a time from when data communication of the mobile equipment is completed to when a transition request command to request transition into the power-saving state is transmitted to the base station, or a shortest transmission interval at which the mobile equipment can transmit the transition request command subsequently to when the mobile equipment transmits the transition request command after completion of the data communication of the mobile equipment.
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