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Domain selection for mobile-originated message service

  • US 10,104,512 B2
  • Filed: 08/06/2010
  • Issued: 10/16/2018
  • Est. Priority Date: 08/10/2009
  • Status: Active Grant
First Claim
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1. A method of communication, comprising:

  • maintaining an indication at an access terminal, wherein the indication comprises a flag that has either a first designated value to indicate that a home public land mobile network (HPLMN) operator for the access terminal prefers a message service originated by the access terminal to be invoked over an Internet Protocol (IP) domain or a second designated value to indicate that the message service is not to be invoked over the IP domain; and

    sending, by the access terminal, message service information over a domain selected at the access terminal based on whether the flag has the first designated value or the second designated value, wherein sending the message service information comprises;

    attempting to send the message service information over Internet Protocol Multimedia Subsystem (IMS) signaling in response to the flag having the first designated value to indicate that the HPLMN operator prefers the message service to be invoked over the IP domain; and

    attempting to attach to non-access stratum (NAS) signaling and send the message service information over the NAS signaling in response to the attempt to send the message service information over the IMS signaling failing.

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