A communication control method according to a first aspect is used in a base station that operates in a power saving mode. The communication control method includes steps of: setting a threshold; receiving an uplink signal transmitted from a user terminal connected to a neighboring base station; and starting a process of transitioning from the power saving mode to a normal mode, in response to that a received power of the uplink signal exceeds the threshold. In the step of setting the threshold, the base station sets the threshold on the basis of information received from the neighboring base station.