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Seamless handoff of mobile terminal

  • US 20060120171A1
  • Filed: 09/02/2005
  • Published: 06/08/2006
  • Est. Priority Date: 11/12/2004
  • Status: Abandoned Application
First Claim
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1. Method for providing for a user a seamless handover between a first serving node in a first radio area and a second serving node in a second radio area, wherein a user'"'"'s data session is identified in the first radio area by means of a first address and wherein an authentification unit being accessible by the first serving node and by the second serving node is provided and wherein said method comprises the following steps being performed in the first serving node, providing the first address and an address of the first serving node to the authentication node and, receiving a detach message from the user for detaching from the first serving node, running a delay timer for delaying a discarding of the first address, wherein a receipt of a request from the second serving node for providing the first address within a duration of the delay timer leads to sending the first address to the second serving node.

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