In order to shorten a waiting time until a user terminal receives a down signal transmitted from a base station apparatus and ensure that a transmission beam is transmitted to a direction towards where one or more user terminals are present, a base station for time-divisionally transmitting a down signal to multiple user terminals present in a cell concurrently with changing a transmission beam direction where the down signal is common to the multiple user terminals is provided and includes a wireless communicator configured to time-divisionally transmit the down signal concurrently with changing the transmission beam direction, an information storage configured to store transmission schedule information which specifies transmission timing of the transmission beam, and a controller configured to control, based on the transmission schedule information, the transmission beams when the base station transmits the down signal.