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Method and system for hard handoff in HRPD

  • US 9,049,621 B2
  • Filed: 11/09/2012
  • Issued: 06/02/2015
  • Est. Priority Date: 06/09/2005
  • Status: Active Grant
First Claim
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1. A method for facilitating handoff of an access terminal (AT) between a source access network (AN) and a target AN in a wireless communications network, the method comprising:

  • supporting an active packet data session between the AT and the source AN, the active packet data session comprising an active, non-dormant traffic data transfer session;

    receiving a message during the active packet data session from the AT operable for initiating handoff of the AT;

    during the active data packet session, initiating establishment of a communications path between the target AN and a packet data node for carrying user data packets;

    sending a setup request from the target AN to the packet data node requesting establishment of the communications path between the target AN and the packet data node;

    receiving a setup reply at the target AN from the packet data node; and

    generating a tunnel between the source AN and the target AN operable for carrying user data packets unicast from the packet data node.

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