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Method and system for setting up a call in a mobile communication system supporting PTT service

  • US 20060246933A1
  • Filed: 04/20/2006
  • Published: 11/02/2006
  • Est. Priority Date: 04/20/2005
  • Status: Abandoned Application
First Claim
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1. A method for setting up a call in a mobile communication system supporting a Push-To-Talk (PTT) service in association with a radio access network (RAN) and an Internet Protocol (IP) network, the method comprising the steps of:

  • (a) if an access terminal (AT) in a group logs on, performing session setup with a server providing the PTT service using a multicast protocol; and

    (b) after the session setup, performing a group call between ATs in the group using a shared channel in the RAN between an access network (AN) and the AT.

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