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Systems and methods for selecting serving gateways to service user equipment

  • US 8,358,593 B2
  • Filed: 10/22/2009
  • Issued: 01/22/2013
  • Est. Priority Date: 10/22/2009
  • Status: Active Grant
First Claim
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1. A method for selecting a serving gateway to service user equipment in communication with a network, comprising:

  • receiving a message from a base transceiver station including a list of tracking areas handled by the base transceiver station;

    performing a domain name system query for at least one tracking area in the list of tracking areas to retrieve and store information indicating a serving gateway serving the at least one tracking area;

    receiving an attach request from the base transceiver station identifying the user equipment and a tracking area from which the user equipment is connected to the network;

    retrieving the stored information indicating the serving gateway serving the at least one tracking area to identify a serving gateway to service the user equipment based on the tracking area from which the user equipment is connected to the network; and

    sending a message identifying the identified serving gateway to the base transceiver station.

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