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METHODS AND DEVICES FOR FACILITATING EMERGENCY CALLS OVER WIRELESS COMMUNICATION SYSTEMS

  • US 20160295385A1
  • Filed: 03/31/2015
  • Published: 10/06/2016
  • Est. Priority Date: 03/31/2015
  • Status: Active Grant
First Claim
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1. A method implemented by a first gateway node for processing an emergency call, comprising:

  • receiving an emergency call request initiated from a terminal device over an untrusted non-3GPP based access network, wherein the emergency call request includes an emergency network access identifier constructed by the terminal device;

    detecting an event of the emergency call depending upon the emergency network access identifier;

    selecting for the terminal device an emergency access point name that identifies an external network providing an emergency call service; and

    establishing for the terminal device an emergency call session with a second gateway node interfacing with the external network which is identified by the selected emergency access point name.

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