receiving an indication from the second wireless communications device that the second wireless communications device has reached a waypoint and sending the path data for {HEAD ~ a successive segment} to the second wireless communications device in {TAIL ~ response} to receiving the indication 
receiving an indication from the second wireless communications device that the second wireless communications device has reached a waypoint and sending the path data for { HEAD ~ a successive segment } to the second wireless communications device in { TAIL ~ response } to receiving the indication
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH