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Apparatus and method for delivering short message service efficiently in wireless communication system

  • US 9,622,054 B2
  • Filed: 10/06/2015
  • Issued: 04/11/2017
  • Est. Priority Date: 12/06/2011
  • Status: Active Grant
First Claim
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1. A method for short message service (SMS) by a core network (CN) node in a wireless communication system, the method comprising:

  • receiving, from a terminal, an attach request message including information indicating that the terminal requests SMS;

    transmitting, to a home subscriber server (HSS), a location update request message including information indicating that the CN node is capable of SMS transfer without establishing an association with a mobile switching center (MSC);

    receiving, from the HSS, a location update answer message including information indicating whether the CN node is registered for the SMS; and

    transmitting, to the terminal, an attach accept message including information indicating that an attach of the terminal is for the SMS if the SMS in the CN node is provided.

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