Terminal apparatus and communication method for setting appropriate uplink transmit power for an uplink signal based on detecing a DCI

A terminal apparatus comprising:

• reception circuitry configured to receive, via a higher layer signal, a first parameter set for uplink power control and a second parameter set for the uplink power control;
• and
• transmission circuitry configured to transmit an uplink signal including at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a sounding reference signal (SRS);
• wherein,
• in a case that a first cell of a first base station and a second cell of a second base station are configured, the transmission circuitry is further configured to:
• set a transmit power for the uplink signal based on the first parameter set, in a first case that the reception circuitry receives a first downlink control information (DCI) format from the first base station;
• and
• set the transmit power based on the second parameter set, in a second case that the reception circuitry receives a second DCI format from the second base station, and
• each of the first parameter set and the second parameter set includes at least a first type parameter for the PUSCH, a second type parameter for the PUCCH, and a third type parameter for the SRS.