On Mon, 2012-07-09 at 07:50 -0700, Ben Greear wrote: > On 07/09/2012 01:29 AM, Johannes Berg wrote: > > On Sun, 2012-07-08 at 07:34 -0700, Ben Greear wrote: > >> On 07/08/2012 02:35 AM, Johannes Berg wrote: > >>> From: Johannes Berg <johannes.berg@xxxxxxxxx> > >>> > >>> Instead of using full power when scanning, use > >>> full power when off-channel. This is different > >>> since off-channel can be remain-on-channel. > >> > >> What if we are scanning on our current channel? Shouldn't > >> it be full-power then as well? > > > > Arguable. If we're on the channel that the AP explicitly told us to use > > less power on, and we're not stopping normal traffic, then I'm not sure > > we should. > > Well, if you are scanning, you might be wanting to find other APs that > perhaps require full power to reach, so it seems to me it should scan > at full power... Yes, but you're not supposed to send the data packets at the higher power. So unless you have per-packet power control you'd be breaking your TPC implementation (which is regulatory relevant) if you do on-channel scan. I suppose the other option would be to skip the optimisation in that case, but ... johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
