Presence and IntComm WG

[Ben Teitelbaum <>]

Xiaotao Wu 
<>
 writes:

>> > 3)    We want to locate the user, not a communications device.  So,
>> >     the scanned device needs to be worn or always carried (e.g.,
>> >     a PDA, a cell/wifi phone.)
>
> I think in addition to the active location sensing, we can also do some
> passive location sensing as a complementary method. See
> ...

And let's not forget that sometimes there is no "scanned device".  For
example, when the laptop (or small, worn device) discovers its
location by scanning its environment (e.g. GPS, PlaceLab).

-- ben