A terminal device configured to communicate with a base station device using a plurality of serving cells including one primary cell and one or multiple secondary cells, the one or multiple secondary cells including a PUCCH secondary cell and a non-PUCCH secondary cell, respectively corresponding to a secondary cell used to transmit a PUCCH and to a secondary cell not used to transmit a PUCCH, the terminal device comprising: a receiving unit configured to receive a radio resource control signal including first information used for indicating a simultaneous transmission of Hybrid Automatic Repeat Request-Acknowledgment, HARQ-ACK, and channel state information, CSI, by using a first physical uplink control channel, PUCCH, format, receive a radio resource control signal including second information used for configuring a first PUCCH resource, receive a radio resource control signal including third information used for configuring second PUCCH resources, and receive on a physical downlink control channel, PDCCH, fourth information used for indicating a second PUCCH resource of the second PUCCH resources; and a transmission unit configured to transmit the HARQ-ACK and the CSI in a subframe without any PUSCH, wherein in a case that the first PUCCH format is configured and the simultaneous transmission of the HARQ-ACK and the CSI is indicated by using the first information, the first PUCCH format and the first PUCCH resource are used for transmission of the HARQ-ACK and the CSI if the HARQ-ACK is corresponding to a physical downlink shared channel, PDSCH, transmission only on the PUCCH secondary cell, and in a case that the first PUCCH format is configured and the simultaneous transmission of the HARQ-ACK and the CSI is indicated by using the first information, the first PUCCH format and the second PUCCH resource are used, if the total number of HARQ-ACK bits and CSI bits in the subframe is less than a predetermined value, for transmission of the HARQ-ACK and the CSI if the HARQ-ACK is corresponding to the PDSCH transmission on the non-PUCCH secondary cell. a receiving unit configured to receive a radio resource control signal including first information used for indicating a simultaneous transmission of Hybrid Automatic Repeat Request-Acknowledgment, HARQ-ACK, and channel state information, CSI, by using a first physical uplink control channel, PUCCH, format, receive a radio resource control signal including second information used for configuring a first PUCCH resource, receive a radio resource control signal including third information used for configuring second PUCCH resources, and receive on a physical downlink control channel, PDCCH, fourth information used for indicating a second PUCCH resource of the second PUCCH resources; and receive a radio resource control signal including first information used for indicating a simultaneous transmission of Hybrid Automatic Repeat Request-Acknowledgment, HARQ-ACK, and channel state information, CSI, by using a first physical uplink control channel, PUCCH, format, receive a radio resource control signal including second information used for configuring a first PUCCH resource, receive a radio resource control signal including third information used for configuring second PUCCH resources, and receive on a physical downlink control channel, PDCCH, fourth information used for indicating a second PUCCH resource of the second PUCCH resources; and a transmission unit configured to transmit the HARQ-ACK and the CSI in a subframe without any PUSCH, wherein in a case that the first PUCCH format is configured and the simultaneous transmission of the HARQ-ACK and the CSI is indicated by using the first information, the first PUCCH format and the first PUCCH resource are used for transmission of the HARQ-ACK and the CSI if the HARQ-ACK is corresponding to a physical downlink shared channel, PDSCH, transmission only on the PUCCH secondary cell, and in a case that the first PUCCH format is configured and the simultaneous transmission of the HARQ-ACK and the CSI is indicated by using the first information, the first PUCCH format and the second PUCCH resource are used, if the total number of HARQ-ACK bits and CSI bits in the subframe is less than a predetermined value, for transmission of the HARQ-ACK and the CSI if the HARQ-ACK is corresponding to the PDSCH transmission on the non-PUCCH secondary cell.