In order to enable a terminal apparatus to identify a beam to be used by a base station, while reducing radio resource use, a base station 100 of the present invention includes: an information obtaining section 131 configured to obtain obtainable information obtainable for both the base station 100 and a terminal apparatus 200, the obtainable information being neither communication quality information nor an identifier indicating a transmit beam for transmission to the terminal apparatus 200; and a beam selecting section 133 configured to select a transmit beam for transmission to the terminal apparatus 200, from among a plurality of candidate transmit beams, based on the obtainable information.