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Apparatus and method for providing a microzone mobile communication system within a cellular telephone system

  • US 5,625,672 A
  • Filed: 03/10/1994
  • Issued: 04/29/1997
  • Est. Priority Date: 11/29/1990
  • Status: Expired due to Term
First Claim
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1. A microzone mobile communication system which operates in local areas on cellular channels in the same frequency band as a cellular telephone system which is available in said local areas, said microzone mobile communication system comprising:

  • a plurality of fixed stations for providing communications links for said microzone system;

    a cellular monitoring receiver located within one of said local areas for scanning channels of said cellular telephone system, and for monitoring the interference potential of each of said scanned channels;

    a control unit for coupling at least one of said fixed stations to a public service telephone network, said control unit being responsive to said monitoring for allocating cellular channels prior to a communication request to said microzone mobile communication system based on said monitoring of said interference potential; and

    a portable terminal which accesses said microzone mobile communication system on one of said allocated cellular channels in response to a communication request when said portable terminal is within said local area.

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