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Method and apparatus for handoff of a wireless packet data services connection

  • US 7,561,555 B2
  • Filed: 03/27/2006
  • Issued: 07/14/2009
  • Est. Priority Date: 12/06/2000
  • Status: Expired due to Term
First Claim
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1. In a packet data serving node of a communications network, a method comprising:

  • allocating an IP address to an International Mobile Station Identity (IMSI) in response to a mobile station performing mobile IP re-registration when it moves from a coverage area of a first Radio Access Network (RAN) into a coverage area of a second RAN;

    purging a foreign agent of table entries associating the IP address to other IMSI values; and

    routing data nackets between an IP network and the second RAN.

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