TERMINAL DEVICE, BASE-STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

摘要

There is provided a terminal device which includes a transmission unit that transmits hybrid automatic retransmit request response information. In a case where one serving cell is configured in the terminal device in time division duplex, or in a case where serving cells of which the number is more than one are configured in the terminal device and uplink/downlink configurations of all of the configured serving cells are the same as each other, the transmission unit transmits the hybrid automatic retransmit request response information in an uplink subframe n, in response to detection of physical downlink control channel transmission in a subframe (n-k). The transmission unit transmits the hybrid automatic retransmit request response information in an uplink subframe m, in response to detection of physical downlink control channel transmission in a subframe (m-4), in a primary cell having Frame constitution type 1, in which frequency division duplex-time division duplex carrier aggregation is performed. The k is a component of a downlink association set K.