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ENHANCED CROSS-NETWORK HANDOFF FOR MOBILE IP SERVICE MOBILITY

  • US 20080159232A1
  • Filed: 12/29/2006
  • Published: 07/03/2008
  • Est. Priority Date: 12/29/2006
  • Status: Active Grant
First Claim
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1. A method for maintaining an IP network session according to quality of service constraints for an application running on a user device, the method comprising:

  • receiving a list of preferred access networks for the user device, the list comprising a plurality of access networks authorized for the user device;

    receiving the quality of service constraints from the user device;

    establishing the IP network session via a first access network based on the quality of service constraints, wherein the first access network is one of the plurality of networks;

    monitoring user device and access network conditions for the first access network and at least some of the plurality of networks on the list of preferred access networks to determine whether the first access network is able to maintain the IP network session in accordance with the quality of service constraints for the application; and

    if the first access network is not able to maintain the IP network session in accordance with the quality of service constraints, transferring the IP network session to a second access network selected based on at least one of the user device conditions and the access network conditions.

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