Provided is a terminal device that is in a network coverage in a carrier which is used for first communication and/or first discovery, the device including: a transmission unit configured to transmit first information for indicating an uplink-downlink configuration relating to Time Division Duplex (TDD) on a physical channel relating to the first communication and/or the first discovery; and a configuration unit configured to set the first information to a specific value (a predetermined value), in a case where a carrier in which the first information is transmitted is an uplink carrier for Frequency Division Duplex (FDD), in which the first communication is a mode of communication in which the terminal device and a different terminal device communicate directly with each other, and in which the first discovery is defined as a process that identifies the different terminal device in proximity using a direct signal.