On Dec 29, 9:09 pm, ip332 iprile...@gmail.com wrote:
If the WiFi service is turned off the you will get position from the
cell tower.
If you could turn off the cell service and keep WiFi on then you get
position from WiFi (however I don't think you can turn off
phone service easily)
But you can use the location accuracy to differentiate between WiFi
and cell-tower based location
WiFi will give you position accuracy around 50m, cell tower - more
than hundred (from my experience - 200-300m)
I think the situation imagined is in a building with good wifi
access, but crummy phone service. I hadn't thought that wifi
would be that much more accurate than the cell tower location.
I hadn't imagined a lookup table with 50m resolution for every
wifi router in existence, I thought it was going to be more like
the location targeted banner adds that pulled your location
from your ISP. I could also see the wifi location being updated
if you ever connect through it and have gps active, but prior to
that I'd expect a big accuracy variance.
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