In a cellular mobile communication network, mobile records are maintained in a first database for indicating a base station area when a mobile station crosses a boundary between adjacent location areas and enters that base station area. A second database is associated with each control group of base...http://www.google.fr/patents/US6370378?utm_source=gb-gplus-shareBrevet US6370378 - Cellular communicating network and method for locating mobile stations using hierarchically arranged databases
Cellular communicating network and method for locating mobile stations using ...
