A method for activating a location-based function, at least one item of position data is determined for the function as a condition for activating the function. A device in a wireless communication network examines at least one property of the network to decide whether positioning of the device (1) is...http://www.google.de/patents/US7305244?utm_source=gb-gplus-sharePatent US7305244 - Method for activating a location-based function, a system and a device
