Apparatus, vehicle, method, and computer program for setting a transmission power

Embodiments provide an apparatus, a vehicle, a method, and a computer program for setting a transmission power. The apparatus (10) is operable to set a transmission power of a vehicular relay transceiver (100) in a mobile communication system (400). The relay transceiver (100) is operable in a vehicle (500) to relay information between a mobile transceiver (200) associated with the relay transceiver (100) and a base station transceiver (300) of the mobile communication system (400). The apparatus (10) comprises a transceiver module (12) which is operable to transmit a common signal using a transmission power. The transmission power influences a coverage area of the relay transceiver (100). The relay apparatus (10) further comprises a controller module (14) operable to determine information related to a quality of a radio link between the relay transceiver (100) and the base station transceiver (300) and information on a state of the vehicle (500). The controller module (14) is further operable to set the tran