In addition to current position data, the speed, path and time {HEAD ~ data facilitate tracking} of {TAIL ~ the first wireless communications device} 
of
In addition to current position data , the speed , path and time { HEAD ~ data facilitate tracking } of { TAIL ~ the first wireless communications device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL