Patent ID: 6487408
Filing Date: 2002-11-26
Classification: H04W

Abstract:
A mobile communication system comprising:a plurality of base stations, each of said base stations forming a radio zone; a mobile terminal that moves in said radio zones and registers a location of said mobile terminal to one of said base stations, wherein said mobile terminal comprises location registration means for detecting reception levels of a plurality of different signals from said base stations, calculating a difference between a first one of said signals transmitted from a first one of said base stations having a largest reception level and a second one of said signals transmitted from a second one of said base stations having a second largest reception level and registering the location of said mobile terminal to said first base station having transmitted said first one of said signals having said largest reception level when said difference is larger than a preset threshold value; and an exchange office connected with said base stations and for receiving location information of said mobile terminal via a base station to which the location of said mobile terminal has been registered and confirming the location of said mobile terminal, wherein said exchange office comprises location display means having a map indicating divisions of said base stations and for displaying the location of said mobile terminal in one of said divisions of said base stations based on a signal from said base station to which the location of said mobile terminal has been registered.