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

摘要

The purpose of the present invention is to efficiently transmit uplink control information. This terminal device is provided with a transmission unit which performs an aperiodic CSI report on the basis of first information and the value of a 2-bit CSI request field, and performs an aperiodic CSI report on the basis of second information and the value of a 3-bit CSI request field. In cases when more than one but not more than 5 downlink cells are set, and downlink control information is mapped in a UE-specific search space, the 2-bit CSI request field is included in the downlink control information. In cases when more than 5 downlink cells are set, and the downlink control information is mapped in the UE-specific search space, the 3-bit CSI request field is included in the downlink control information.