The method operates in a wireless communication system, and includes receiving at a first base station having a first location, a widebeam signal from a first mobile communication unit having a second location; measuring, by the first base station, a characteristic of the received widebeam...http://www.google.fr/patents/US5842130?utm_source=gb-gplus-shareBrevet US5842130 - Method for identifying a mobile unit in a wireless communication system
Method for identifying a mobile unit in a wireless communication system