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Network system with dynamic service profile updating functions

  • US 20010053694A1
  • Filed: 01/12/2001
  • Published: 12/20/2001
  • Est. Priority Date: 01/31/2000
  • Status: Active Grant
First Claim
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1. A network system which controls communication between a user terminal and a peer terminal thereof over a network including a mobile domain, comprising:

  • (a) a home agent, coupled to the peer terminal, which maintains the location of the user terminal and tunnels packets for delivery to the user terminal;

    (b) a foreign agent which detunnels and delivers the packets to the user terminal that is visiting a foreign network;

    (c) a service control database which maintains a customizable service profile defining what class of service to provide to the user terminal;

    (d) a home server located in a first administrative domain to which the user terminal belongs, comprising;

    service profile setting means for retrieving the service profile from said service control database when the user terminal initiates a communication session, and distributing and setting the retrieved service profile to said home agent and foreign agent as an initial service profile, and service profile updating means for generating an event signal when a control condition described in the retrieved service profile is met, obtaining a new service profile from said service control database in response to the event signal, and distributing the new service profile so as to replace the initial service profile being set in said home agent and foreign agent; and

    (e) a foreign server located in a second administrative domain, which forwards the initial service profile and new service profile from said home server to said foreign agent.

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