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Method of pre-authorizing handovers among access routers in communication networks

  • US 20030092444A1
  • Filed: 11/09/2001
  • Published: 05/15/2003
  • Est. Priority Date: 11/09/2001
  • Status: Active Grant
First Claim
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1. A method of handing off a mobile terminal from a first network served by a first access device to a second network served by a second access device, comprising the steps of:

  • (1) sending an authorization inquiry from the first access device to the second access device including an identifier that identifies the mobile terminal;

    (2) querying a database maintained by a home network associated with the mobile terminal to determine whether the mobile terminal is authorized to be handed off to the second access device;

    (3) in response to determining that the mobile terminal is authorized to be handed off to the second access device, performing a handoff operation from the first access device to the second access device; and

    (4) in response to determining that the mobile terminal is not authorized to be handed off to the second access device, inhibiting the handoff operation from the first access device to the second access device.

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