A terminal apparatus includes a receiver configured to monitor a PDCCH in a control resource set and a transmitter configured to transmit a PUSCH scheduled based on an uplink grant included in a DCI format transmitted in the PDCCH. The PDCCH includes one or more Control Channel Elements (CCEs). One of the one or more CCEs includes six Resource Element Groups (REGs). One of the REGs includes a PRB in an OFDM symbol. The one CCE includes one or more REG bundles non-continuously mapped in a frequency domain. One of the one or more REG bundles includes one or a plurality of the REGs. The number of the REGs constituting the one REG bundle in the frequency domain is given per the number of OFDM symbols in the one CCE.