Method and system for operating a vehicle navigation system

Abstract

A method operates a vehicle navigation system, in which vehicles of a vehicle fleet are classified into vehicle groups according to an antenna characteristic with respect to a terrestrial wireless network. The vehicles of the vehicle fleet ascertain at various measurement locations the position of the measurement location and the signal strength and/or the signal quality of the wireless network. The vehicles each generate for each of the measurement locations, signal data, which signal data correspond to the position of the measurement location, the vehicle group of the transmitting vehicle, and the signal strength and/or the signal quality of the wireless network at the measurement location, and transmit the signal data to a backend. The backend processes the signal data in order to create a network coverage map for each of the vehicle groups, which is specific for the antenna characteristic of the respective vehicle group. A navigation system of at least one of the vehicles of the vehicle fleet carries out a navigation function on the basis of the network coverage map assigned to the vehicle group of the at least one vehicle.