how to know user device position at AP?

Hi Sungjin,

Are you looking for location based services over the WiFi?

We have a product called SPoT which is a location based product and can integrate with our most of the WiFi solutions like, SmartZone, ZoneDirector, Cloud WiFi etc.

To know more, please refer the Location Analytics details from here and here.

If your query is different then please provide more details and we will get back to you with most suitable solution.

Regards,
Syamantak Omer