Method for operating a car park (303, 403) within which multiple base stations (305, 409a, 409b, 409c) are arranged, characterized in that a) a minimum volume of data comprising data required by a vehicle for its journey in the car park (303, 403) is ascertained in such a way that the vehicle is able to take the data corresponding to the minimum volume of data as a basis for leaving a radio range of a first base station and driving into radio range of a second base station (409b, 409c), b) wherein the first base station transmits the ascertained minimum volume of data comprising data to the vehicle that is in radio range of the first base station, which means that the vehicle is able to take the data as a basis for leaving the radio range of the first base station and driving into radio range of the second base station (409b, 409c), c) wherein the minimum volume of data is ascertained on the basis of a respective transmission power of the first and the second (409b, 409c) base station, the respective transmission powers being ascertained on the basis of a digital transmission power map that indicates what level a respective transmission power of the base stations (305, 409a, 409b, 409c) is at, d) wherein data that the vehicle requires for its journey in the car park from a starting position to a destination position are ascertained, the data of the minimum volume of data being ascertained on the basis of the ascertained data, that is to say that, of these data, only those data that the vehicle requires for its journey from the first to the second (409b, 409c) base station are transmitted to the vehicle, e) wherein the data comprise one or more elements from the following group of data: trajectory data, map data from a digital map of the car park (303, 403), remote control data, object data from mobile and/or static objects situated in the car park (303, 403), landmark data, traffic data and hazard data. a) a minimum volume of data comprising data required by a vehicle for its journey in the car park (303, 403) is ascertained in such a way that the vehicle is able to take the data corresponding to the minimum volume of data as a basis for leaving a radio range of a first base station and driving into radio range of a second base station (409b, 409c), b) wherein the first base station transmits the ascertained minimum volume of data comprising data to the vehicle that is in radio range of the first base station, which means that the vehicle is able to take the data as a basis for leaving the radio range of the first base station and driving into radio range of the second base station (409b, 409c), c) wherein the minimum volume of data is ascertained on the basis of a respective transmission power of the first and the second (409b, 409c) base station, the respective transmission powers being ascertained on the basis of a digital transmission power map that indicates what level a respective transmission power of the base stations (305, 409a, 409b, 409c) is at, d) wherein data that the vehicle requires for its journey in the car park from a starting position to a destination position are ascertained, the data of the minimum volume of data being ascertained on the basis of the ascertained data, that is to say that, of these data, only those data that the vehicle requires for its journey from the first to the second (409b, 409c) base station are transmitted to the vehicle, e) wherein the data comprise one or more elements from the following group of data: trajectory data, map data from a digital map of the car park (303, 403), remote control data, object data from mobile and/or static objects situated in the car park (303, 403), landmark data, traffic data and hazard data.