Patent ID: 6954630

Claim:
A method for location-based billing for mobile telecommunication, which comprises: registering mobile stations in a cellular mobile radio network formed by base stations and a network server including at least call-processing facilities, facilities for sending/receiving information, and a billing facility; recording, forwarding, and transmitting communication information between the mobile stations and/or between the mobile stations and a network server; forming a special billing zone by combining a subset of radio cells associated with base stations in the cellular mobile radio network and covering a geographical area; using the billing facility to bill, based on a locally valid tariff for the special billing zone, for communication between ones of the mobile stations temporally concurrently localized within the special billing zone; storing in a given mobile station a zone identifier as evidence of registration when the given mobile station is registered within the special billing zone; and after re-registering the given mobile station, selecting one of: questioning the zone identifier stored by the given mobile station with the network server, or transmitting the zone identifier to the network server with the given mobile station.