Accordingly, an object of the present invention is to provide a radio communication system and {HEAD ~ communication method} that can reduce {TAIL ~ a delay} at the time of initial connection 
reduce
Accordingly , an object of the present invention is to provide a radio communication system and { HEAD ~ communication method } that can reduce { TAIL ~ a delay } at the time of initial connection
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH