A method for indicating one of a plurality of Time Division Duplex, TDD, configurations to a mobile station for at least one target cell in a communication system, the TDD configuration defining uplink, downlink and special subframes within one or more radio frames, wherein the method comprises the following steps performed by the mobile station: receiving from a base station of a first cell a downlink control information and a corresponding error detection code for the downlink control information, wherein the error detection code for the downlink control information is scrambled by the base station with a target cell identifier associated with the at least one target cell for which the TDD configuration is to be applied, determining the identifier used for scrambling the error detection code of the downlink control information, determining the TDD configuration from the downlink control information, in case the determined identifier is the target cell identifier, determining the at least one target cell to which to apply the determined TDD configuration from the target cell identifier used for scrambling the error detection code of the downlink control information, and wherein the mobile station is configured with a default TDD configuration, the method further comprising the following steps performed by the mobile station: applying the determined TDD configuration for the radio frames n+m, applying the default TDD configuration for radio frames n+m+1, and where m >= 1, and n is associated with the radio frame in which the downlink control information and error detection code are received by the mobile station. receiving from a base station of a first cell a downlink control information and a corresponding error detection code for the downlink control information, wherein the error detection code for the downlink control information is scrambled by the base station with a target cell identifier associated with the at least one target cell for which the TDD configuration is to be applied, determining the identifier used for scrambling the error detection code of the downlink control information, determining the TDD configuration from the downlink control information, in case the determined identifier is the target cell identifier, determining the at least one target cell to which to apply the determined TDD configuration from the target cell identifier used for scrambling the error detection code of the downlink control information, and wherein the mobile station is configured with a default TDD configuration, the method further comprising the following steps performed by the mobile station: applying the determined TDD configuration for the radio frames n+m, applying the default TDD configuration for radio frames n+m+1, and where m >= 1, and n is associated with the radio frame in which the downlink control information and error detection code are received by the mobile station. applying the determined TDD configuration for the radio frames n+m, applying the default TDD configuration for radio frames n+m+1, and where m >= 1, and n is associated with the radio frame in which the downlink control information and error detection code are received by the mobile station.