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METHOD OF EXCHANGING SMS DATA IN A WIRELESS COMMUNICATIONS SYSTEM

  • US 20130115982A1
  • Filed: 02/09/2011
  • Published: 05/09/2013
  • Est. Priority Date: 02/10/2010
  • Status: Active Grant
First Claim
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1. A method of exchanging SMS data in a wireless communications system comprising wireless user equipment and a core network unit interfaced with the user equipment through a wireless access network,wherein a first short message relay entity and a first short message control entity are provided in one of the core network unit and the user equipment, while a second short message relay entity and a second short message control entity are provided in the other one of the core network unit and the user equipment,the method comprising, in the first short message control entity:

  • transmitting first control protocol data to the second short message control entity, the first control protocol data conveying relay protocol data provided by the first short message relay entity for the second short message relay entity;

    receiving from the second short message control entity second control protocol data conveying relay protocol acknowledgement information from the second short message relay entity; and

    retransmitting the first control protocol data unless a control protocol acknowledgement is received from the second short message control entity before a timer expires, wherein the second control protocol data is interpreted as a control protocol acknowledgement for deciding whether the first control protocol data is to be retransmitted.

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