Provided are a base station apparatus, a terminal apparatus, and a communication method that enable the improvement of communication performance in a system in which multiple frame formats are used. A transmitter configured to transmit one or more subframes defined with a given fixed time length is provided, wherein at least one subframe out of the subframes includes a common signal interval which is an interval for transmitting a common signal in a cell, the common signal interval includes a signal generated by a first parameter set, and an interval other than the common signal interval includes a signal generated by the first parameter set or a signal generated by a second parameter set different from the first parameter set at least in terms of a subcarrier spacing.