Patent ID: 6073010
Filing Date: 2000-06-06
Classification: H04W

Abstract:
A cellular telecommunication system having a plurality of cells and a plurality of subscribers utilizing cellular telephones of approximately equal radio frequency transmitter power to access said cellular system, said plurality of subscribers including at least one fixed subscriber assigned to a fixed subscription area (FSA) engaged in an ongoing call in a serving cell, said system comprising:a mobile switching center (MSC) which includes a database defining which of said plurality of cells are included in said FSA;a home location register (HLR) that stores a subscriber profile for each of said plurality of subscribers, each subscriber profile identifying whether an associated subscriber is a fixed subscriber;means for sending an inquiry from said MSC to said HLR to determine whether a subscriber is a normal subscriber or a fixed subscriber;a plurality of base stations electronically connected to said MSC, each of said base stations transmitting radio frequency signals over a coverage area defining one of said cells, and receiving radio frequency signals from said cellular telephones of approximately equal radio frequency transmitter power; anda restricted mobility function for restricting said on-going call of said fixed subscriber to said FSA.