{HEAD ~ The device} 1, wherein {TAIL ~ a transmission time} and transmission location of the navigation signals are determined using the models 
wherein
{ HEAD ~ The device } 1 , wherein { TAIL ~ a transmission time } and transmission location of the navigation signals are determined using the models
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH