If the coincidence is present, the mobile device changes the own link identification code so that {HEAD ~ the communication} with {TAIL ~ the immobile device} may be executed by using the changed link identification code 
If the coincidence is present , the mobile device changes the own link identification code so that { HEAD ~ the communication } with { TAIL ~ the immobile device } may be executed by using the changed link identification code
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH