Use of {TAIL ~ dual mode user equipment} and {HEAD ~ moving, overlapping cellular structures} admits simple and inexpensive on board equipment for aircraft 
Use of { TAIL ~ dual mode user equipment } and { HEAD ~ moving , overlapping cellular structures } admits simple and inexpensive on board equipment for aircraft
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH