A terminal apparatus includes: a receiver configured to receive first information related to query for capability of the terminal apparatus; and a transmitter configured to transmit second information related to the capability of the terminal apparatus, wherein the second information includes third information related to a band combination of operating bands used for carrier aggregation (CA), the band combination supported by the terminal apparatus, and in a case that more than one subcarrier spacings (SCSs) are supported by the terminal apparatus in each of the operating bands, the third information includes fourth information related to a SCS combination that can be applied to the band combination.