In {HEAD ~ a communication system} between mobile communication devices and {TAIL ~ an immobile communication device}, a mobile device receives a FCMC signal from the immobile device upon entering a communication service area of the immobile device 
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In { HEAD ~ a communication system } between mobile communication devices and { TAIL ~ an immobile communication device } , a mobile device receives a FCMC signal from the immobile device upon entering a communication service area of the immobile device
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH