Hello Felix, On Thu, May 09, 2013 at 08:31:36PM +0200, Felix Fietkau wrote: > On 2013-05-09 8:10 PM, a@pandem0nium wrote: > > From: Simon Wunderlich <siwu@xxxxxxxxxxxxxxxxxx> > > > > This is a collection of minor fixes: > > * don't allow HT IEs in IBSS for 5/10 MHz > > * don't allow HT IEs in Mesh for 5/10 MHz > > * consider 5 and 10 MHz channels when downgrading > > * don't try HT rates for 5 and 10 MHz channels when selecting rates > Why? HT rates work with 5/10 MHz just fine. Hm, to be honest I did not try - IEEE 802.11-2012 only mentions 5 and 10 MHz channels in section 18 (OFDM PHY) according with timing and other parameters, but nothing like this (as far as I see) is mentioned in Section 20 (High Throughput PHY). On the other hand, it appears that AR9xxx based chipsets also support 2.4 GHz rates (DSSS, ERP-OFDM), so I can imagine also HT rates can be supported as well. The question is, how would we handle that? Allow HT IEs also for 5 and 10 MHz, and behave like it would be a 20 MHz channel? Are there any other WiFi chipsets which support 5/10 MHz, should we consider them (maybe they don't support that)? And what do others think about deviate from standard? Personally, I don't mind, it would be cool to use HT rates on these bandwidths too. :) Cheers, Simon
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