Abstract: A method for outputting a signal as a function of a transmission path to be selected, to transmit a data packet from a transmitter unit to a receiver unit connectable to the transmitter unit via at least two transmission paths. The method includes: ascertaining, in each instance, a prediction value of at least one transmission path parameter for each of the at least two transmission paths, using a short-term determination unit, to provide a transmission path information item including the predicted values, to a planning unit; selecting the transmission path to be used for transmitting the data packet, from the at least two transmission paths, using the planning unit, based on the ascertained transmission path information item; and outputting the signal using the planning unit to transmit the data packet from the transmitter unit to the receiver unit on the selected transmission path.

Abstract: A method for identifying an object as the source of a V2X signal. The method includes: receiving a V2X signal from a source by a receiver of a first vehicle; performing a relative position estimation using an environment sensor system of the first vehicle, an object from the surroundings of the first vehicle being detected, and a relative position between the first vehicle and the object being determined, the environment sensor system receiving environment signals of the object, and the object modulating the environment signals at least with a part of a V2X signal of the object; receiving the modulated environment signals by the environment sensor system of the first vehicle, and demodulating the received environment signals by the first vehicle, and ascertaining a V2X identifier of the object; comparing the V2X identifier of the object with the V2X signal of the source.

Abstract: A method is described for creating observation data, in particular by at least one vehicle, traveled road segments being ascertained by the vehicle, lanes of the road segments traveled by the vehicle being ascertained by the vehicle, and the ascertained road segments together with the ascertained traveled lanes being transmitted as observation data from the vehicle to an external server unit. A method for ascertaining a number of traffic lanes, to a system, to an external server unit, and to a control unit are also described.

Abstract: A method for determining an environment-specific data profile for a satellite-based determination of a position of a vehicle includes ascertaining the position of the vehicle and receiving satellite data. The environment-specific data profile is determined using the ascertained position of the vehicle, a satellite position of a satellite from the received satellite data, and a path length of a satellite signal between the satellite position and the vehicle position determined from the satellite data.

Abstract: A method for determining a position of a vehicle. The method has a step of carrying out self-locating of the vehicle using a locating device of the vehicle in order to generate a provisional position of the vehicle. The method also has a step of reading in a position signal, the position signal representing a position of another vehicle. Moreover, the method has a step of ascertaining a relative position of the vehicle relative to the other vehicle with the aid of the position signal in order to determine the position of the vehicle using the self-locating and the relative position.

Abstract: A method for ascertaining a piece of topological information of an intersection, including locating a vehicle with lane accuracy when negotiating the intersection; ascertaining data by the vehicle when negotiating the intersection; transmitting the data to a processing unit; and ascertaining a connectivity of lane-roadway combinations of the intersection from the data with the aid of the processing unit.

Abstract: A method is described for creating observation data, in particular by at least one vehicle, traveled road segments being ascertained by the vehicle, lanes of the road segments traveled by the vehicle being ascertained by the vehicle, and the ascertained road segments together with the ascertained traveled lanes being transmitted as observation data from the vehicle to an external server unit. A method for ascertaining a number of traffic lanes, to a system, to an external server unit, and to a control unit are also described.

Abstract: A method for determining an environment-specific data profile for a satellite-based determination of a position of a vehicle includes ascertaining the position of the vehicle and receiving satellite data. The environment-specific data profile is determined using the ascertained position of the vehicle, a satellite position of a satellite from the received satellite data, and a path length of a satellite signal between the satellite position and the vehicle position determined from the satellite data.

Abstract: A method for ascertaining a piece of topological information of an intersection, including locating a vehicle with lane accuracy when negotiating the intersection; ascertaining data by the vehicle when negotiating the intersection; transmitting the data to a processing unit; and ascertaining a connectivity of lane-roadway combinations of the intersection from the data with the aid of the processing unit.