In one aspect of the present invention, user equipment includes a reception unit configured to receive first system information transmitted from a base station in a frequency block where a synchronization signal is placed; and a control unit configured to determine, based on a parameter value determined from the first system information, whether a control channel search space for receiving second system information exists, and when the control channel search space does not exist and when the parameter value is not within a predetermined range, assume that a synchronization signal to be detected does not exist in a frequency range that is at least part of a carrier frequency band until a predetermined condition is satisfied.