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System and method for authenticating a cellular subscriber at registration

  • US 6,665,529 B1
  • Filed: 03/26/1998
  • Issued: 12/16/2003
  • Est. Priority Date: 03/26/1998
  • Status: Expired due to Term
First Claim
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1. In a mobile communications system including at least a switching center communicatible with at least one equipment registry and at least two subscriber registries wherein, for each system subscriber, data associated with that subscriber is stored at a unique address in one of the subscriber registries, a method of authenticating a subscriber at registration comprising the steps of:

  • receiving an equipment identity number at the switching center, the equipment identity number being unique to a particular mobile communications device used by the subscriber;

    transmitting the equipment identity number to the equipment registry;

    checking operability status of the particular mobile communications device;

    transmitting, from the equipment registry to the switching center, the device operability status together with the unique address of data associated with the subscriber authorized to use the particular mobile communications device;

    retrieving data from the unique address; and

    authenticating the subscriber based upon the retrieved data.

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