To provide a technology whereby it is prevented that broadcast channel information acts like an interference source and a reception terminal receives all blocks of the broadcast channel information.

A base station 1 of a wireless communication system of this invention includes: a calculation section 1j that calculates a condition associated with the number of transmission blocks to allow the reception terminal 2 to be capable of receiving all blocks on the basis of the number of all the blocks of the broadcast channel and the number of the transmission blocks and calculates a condition associated with a rotating angular velocity on the basis of the condition, a block unit time, and an angle managed by a directive antenna; and a beam control section 1k for rotating a beam at a rotary angular velocity decided on the basis of the condition associated with the rotary angular velocity.