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METHOD AND SYSTEM FOR INTERTECHNOLOGY HANDOFF OF A HYBRID ACCESS TERMINAL

  • US 20070280264A1
  • Filed: 02/05/2007
  • Published: 12/06/2007
  • Est. Priority Date: 05/30/2006
  • Status: Active Grant
First Claim
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1. A method for inter-network handoff of a voice call from a circuit services network to a packet data network, the method comprising:

  • conveying forward link voice traffic to, and receiving reverse link voice traffic from, an access terminal via the circuit services network;

    determining to hand off the call;

    in response to determining to hand off the call and while continuing to support the call, conveying, by a base station of the circuit services network to a wireless packet data node of the packet data network, a request to hand off the call to the packet data network as a Voice over Internet Protocol (VoIP) call;

    in response to conveying the request, receiving a confirmation from the packet data network to accept the hand-in as a VoIP call;

    conveying, by the base station to the access terminal, messaging that includes a packet data traffic channel, information associated with the packet data traffic channel, and a new active set for facilitating a handoff to the packet data network;

    acquiring the access terminal by a base station in the packet data network; and

    providing, by the packet data network, the access terminal with packet data services.

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