Apparatus for own position-fixing, especially for vehicles

In order to determine the own location, the transit time difference measurements for cell boundary detection running in the organization channel of a network-synchronous cellular mobile radio network are used. In the simplest case, this requires a receiving unit 1 for the organization channel, a device for transit time difference measurement 2 and a working memory 3. These three units are also part of a conventional mobile station. Additionally necessary are still a permanent memory 4 with the location coordinates of all base stations and a computing unit 5 for linking the transit time measurements with the location coordinates and calculating the Eigenstandortes after the hyperbola location method. The display can be made with an LCD display 6 or a graphical display 7 in conjunction with a suitable database 8.