[ath9k-devel] Do 11n rates available in ad-hoc mode

From: Luis R. Rodriguez <lrodriguez@atheros.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] Do 11n rates available in ad-hoc mode
Date: Mon, 29 Jun 2009 09:52:15 -0700	[thread overview]
Message-ID: <20090629165213.GA18359@mosca> (raw)
In-Reply-To: <4A44887B.8030609@nuim.ie>

On Fri, Jun 26, 2009 at 01:36:11AM -0700, Tianji Li wrote:
> Luis R. Rodriguez wrote:
> > On Sun, Jun 21, 2009 at 03:17:12PM -0700, Rakesh Kumar wrote:
> >
> >>> No, its not something in the IEEE standard so such support won't likely
> >>> get merged into mac80211. You might be able to use MCS rates in ad-hoc
> >>> mode but if that's possible its just becuase we haven't fixed the code
> >>> paths to not allow for it.
> >>>
> >>>  Luis
> >>>
> >>>
> >> Are you referring to Ad-hoc mode when saying it's not in IEEE standard
> >> or support for using rate adaptation for it?
> >>
> >
> > Yes.
> >
> >
> >> If that is the case, you
> >> elaborate on as to why this is the case
> >>
> >
> > I am not sure.
> >
> >
> >> or point me somewhere to read
> >> about it?
> >>
> >
> > Unfortunately I have nothing. The 11n draft is only available to
> > members so if you don't have that with you there aren't really any
> > other good places to read about it. When I get a chance I tend to try
> > to add to this wiki:
> >
> > http://wireless.kernel.org/en/developers/Documentation/ieee80211/802.11n
> >
> > But its more a quick summary for developers.
> >
> >   Luis
> > _______________________________________________
> > ath9k-devel mailing list
> > ath9k-devel at lists.ath9k.org
> > https://lists.ath9k.org/mailman/listinfo/ath9k-devel
> >
> Hi there,
> 
> I have a copy of the 802.11n draft version 3.0 dated Sep. 2007, in
> Section 5.2.9 High Throughput (HT) STA on Page 33,  I saw a sentence
> like this 'The HT features are available to HT STAs associated with an
> HT AP in a BSS. *A subset* of the HT features is available for use
> between two HT STAs that are members of the same IBSS.'
> 
> I think this means that at that time (around two years ago), people
> *might be* thinking to support high phy rates in ad hoc mode, which may
> or may not be the case now.

This seems to be accurate, so someone with enough interest just needs to
do the proper review and add the support in mac80211 for this.

  Luis