The stations in the standby state detect in this sequence {HEAD ~ part} of the sequence which coincides with {TAIL ~ their own standby law} and accordingly deduce their relative displacement with respect to the calling station 
coincides with
The stations in the standby state detect in this sequence { HEAD ~ part } of the sequence which coincides with { TAIL ~ their own standby law } and accordingly deduce their relative displacement with respect to the calling station
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH