A terminal apparatus of the present invention performs communication effectively. The terminal apparatus includes: a receiving portion for receiving a PDSCH including a transport block; and a transmitting portion for transmitting, on a PUCCH, HARQ-ACK information corresponding to the transport block. The PDSCH is allocated to first resources other than second resources. The second resources include resources used for one or more SS/PBCH blocks when an n th bit of a higher layer parameter is set to a specific value. The n th bit corresponds to the one or more SS/PBCH blocks, where each of the one or more SS/PBCH blocks has a first index corresponding to (n-1). The first index is determined by a remainder acquired by dividing a second index by a value indicated by a PBCH in each of the one or more SS/PBCH blocks. The second index is notified based on at least a reference signal of the PBCH in each of the one or more SS/PBCH blocks.