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System and method for restricting mobility of subscribers assigned to fixed subscription areas in a cellular telecommunications network

  • US 6,073,010 A
  • Filed: 10/22/1997
  • Issued: 06/06/2000
  • Est. Priority Date: 04/28/1995
  • Status: Expired due to Fees
First Claim
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1. 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; and

    a restricted mobility function for restricting said on-going call of said fixed subscriber to said FSA.

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