The UE transmits one combined message of an AS control message and a NAS control message including information indicating {HEAD ~ transmission} of {TAIL ~ an SIP message}, thereby having an effect on an upper node to reduce a delay due to message processing 
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The UE transmits one combined message of an AS control message and a NAS control message including information indicating { HEAD ~ transmission } of { TAIL ~ an SIP message } , thereby having an effect on an upper node to reduce a delay due to message processing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH