setting message type information of the connection request message, as a connection request message comprising {HEAD ~ the data} to be transmitted through {TAIL ~ the SIP}, by the UE 
setting message type information of the connection request message , as a connection request message comprising { HEAD ~ the data } to be transmitted through { TAIL ~ the SIP } , by the UE
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH