{HEAD ~ The method} can simplify the signaling interaction between the network entities, reduce {TAIL ~ the network complexity} and save the network resources 
reduce
{ HEAD ~ The method } can simplify the signaling interaction between the network entities , reduce { TAIL ~ the network complexity } and save the network resources
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH