It may instead be using "cell towertriangulation" to measure your distance from the nearest cellular network towers, or even doing a lookup from a database that maps wifi hotspots to GPS coordinates.
它或许通过最近的蜂窝塔或者是Wifi热点来测量你所在的位置。
2
Assisted GPS can be one of two things, both of which which offload some work to internet servers and use cell-towertriangulation.