Location based services

while watching the Batman movie, some thoughts came into me abt location services techniques. no doubt they use GPS in movie for location tracking of their targets. But we have different methods and measurements we use for localization. mesurements like Received Signal Strength, Time of Arrival, Angle of Arrival,Time difference of arrival...... methods such as broad names: radiolocation, trilateration, methods: Advanced Forward Link Trilateration(A-FLT), Timing Advance/Network Measurement Report(TA/NMR),Enhanced Observed Time Difference(E-OTD),multilateration or hyperbolic position ........ah...