When you open the maps indoor you get immedieate location. This is not from GPS but from Wifi and cell tower data. This is only possible because your phone constatly transmits your location and network data. You can also call it surveilance because its 24/7 logging and processing of your location data.
When you open the maps indoor you get immedieate location. This is not from GPS but from Wifi and cell tower data. This is only possible because your phone constatly transmits your location and network data. You can also call it surveilance because its 24/7 logging and processing of your location data.