Alexander,
as you might imagine, conceptually there is no disagreement
whatsoever here ;-) And, in fact, that already exists on some
platforms, but it's somewhat limited at the moment due to lack of
support for standards body/bodies at this time. But I'm hopeful that
we're closer to meaningful improvements. This is just as important
for managing the available spectrum as it is for device power
efficiency.
Best regards,
Christian
On Feb 16, 2007, at 6:36 AM, Alexander Harrowell wrote:
Another mobile-land feature 802.11 could do with - dynamic TX power
management. All the cellular systems have the ability to dial down
the transmitter power the nearer to the BTS/Node B you get. This is
not just good for batteries, but also good for radio, as s/n has
diminishing returns to transmitter power. WLAN, though, shouts as
loud next to the AP as on the other side of the street, which is
Not Good for a system that operates in unlicensed spectrum.
UMTS, for example, has a peak tx wattage an order of magnitude
greater than WLAN, but due to the power management, in a picocell
environment comparable to a WLAN the mean tx wattage is less by a
factor of 10.