It may instead be using "cell tower triangulation" 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。

youdao

Assisted GPS can be one of two things, both of which which offload some work to internet servers and use cell-tower triangulation.

辅助GPS定位系统可能是以下两者之一，要么是将工作放到网络主机上去，要么使用 蜂窝基站三角网定位。

youdao

Dark Reading covered a talk at SOURCE on tracking GSM cell phones using a variety of public data, cell tower triangulation, and voicemail hacking techniques.

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Apparently, the service makes use of cell-tower triangulation, and not GPS, to determine the users location, making it somewhat less accurate but far more widely available.

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