A first terminal device that performs Proximity based Services, ProSe, direct discovery and/or ProSe direct communication with a second terminal device, which is out of Evolved Universal Terrestrial Radio Access Network, EUTRAN, coverage, the first terminal device comprising: a control unit configured to perform control for the direct discovery and/or the direct communication, in the coverage area of a serving cell of the EUTRAN on a first carrier used for the direct discovery and/or the direct communication; and a reception unit configured to receive, in a downlink, a radio resource control, RRC, message that includes first information and second information, the first information indicating a first uplink-downlink configuration, the second information indicating a second uplink-downlink configuration, and receive downlink control information, DCI, in a physical downlink control channel, PDCCH, the DCI including third information indicating a third uplink-downlink configuration; and a transmission unit configured to transmit fourth information indicating a fourth uplink-downlink configuration on a physical device to device synchronization channel, PD2DSCH, relating to the direct discovery and/or the direct communication, wherein the reception unit is configured to receive a downlink signal on downlink and special subframes indicated by the third uplink-downlink configuration, but not a device-to-device, D2D, signal for the ProSe direct discovery and/or the ProSe direct communication upon receiving the DCI, wherein the first uplink-downlink configuration is an uplink reference uplink-downlink configuration that the first terminal device follows for an uplink hybrid automatic repeat request, HARQ, timing, wherein the first information, the second information and the third information are defined for the serving cell of the EUTRAN, wherein the fourth information is set to a value representing the same configuration as the first uplink-downlink configuration indicated by the first information which is received in a system information block type 1, wherein the direct communication is a mode of communication whereby the first terminal device and the second terminal device can communicate with each other directly, and wherein the direct discovery is defined as a procedure to discover the second terminal device in proximity using a direct signal, characterized in that the second uplink-downlink configuration is a downlink reference uplink-downlink configuration that the first terminal device follows for a downlink HARQ timing, wherein the first terminal device comprises means adapted to use the third uplink-downlink configuration for monitoring of the PDCCH, the third uplink-downlink configuration being different from the first uplink-downlink configuration and the second uplink-downlink configuration. a control unit configured to perform control for the direct discovery and/or the direct communication, in the coverage area of a serving cell of the EUTRAN on a first carrier used for the direct discovery and/or the direct communication; and a reception unit configured to receive, in a downlink, a radio resource control, RRC, message that includes first information and second information, the first information indicating a first uplink-downlink configuration, the second information indicating a second uplink-downlink configuration, and receive downlink control information, DCI, in a physical downlink control channel, PDCCH, the DCI including third information indicating a third uplink-downlink configuration; and a transmission unit configured to transmit fourth information indicating a fourth uplink-downlink configuration on a physical device to device synchronization channel, PD2DSCH, relating to the direct discovery and/or the direct communication, wherein the reception unit is configured to receive a downlink signal on downlink and special subframes indicated by the third uplink-downlink configuration, but not a device-to-device, D2D, signal for the ProSe direct discovery and/or the ProSe direct communication upon receiving the DCI, wherein the first uplink-downlink configuration is an uplink reference uplink-downlink configuration that the first terminal device follows for an uplink hybrid automatic repeat request, HARQ, timing, wherein the first information, the second information and the third information are defined for the serving cell of the EUTRAN, wherein the fourth information is set to a value representing the same configuration as the first uplink-downlink configuration indicated by the first information which is received in a system information block type 1, wherein the direct communication is a mode of communication whereby the first terminal device and the second terminal device can communicate with each other directly, and wherein the direct discovery is defined as a procedure to discover the second terminal device in proximity using a direct signal, characterized in that the second uplink-downlink configuration is a downlink reference uplink-downlink configuration that the first terminal device follows for a downlink HARQ timing, wherein the first terminal device comprises means adapted to use the third uplink-downlink configuration for monitoring of the PDCCH, the third uplink-downlink configuration being different from the first uplink-downlink configuration and the second uplink-downlink configuration.