Return-path: Received: from hostap.isc.org ([149.20.54.63]:47588 "EHLO hostap.isc.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759072AbYJMSMt (ORCPT ); Mon, 13 Oct 2008 14:12:49 -0400 Date: Mon, 13 Oct 2008 21:11:56 +0300 From: Jouni Malinen To: Johannes Berg Cc: linux-wireless , Daniel Drake , Felix Fietkau Subject: Re: [RFC] mac80211: fix short preamble determination Message-ID: <20081013181156.GC30095@jm.kir.nu> (sfid-20081013_201326_756279_D5F77C40) References: <1223713593.29811.38.camel@johannes.berg> <20081013155938.GA30095@jm.kir.nu> <1223919110.10113.1.camel@johannes.berg> <20081013175457.GB30095@jm.kir.nu> <1223921012.10113.5.camel@johannes.berg> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1223921012.10113.5.camel@johannes.berg> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Oct 13, 2008 at 08:03:32PM +0200, Johannes Berg wrote: > > Well, if you have many such devices, yes, but one might try to live > > without such protection if there are some with very limited transmit > > needs. > > Would you then announce short preamble as the AP? That'd mean all other > stations would use short preamble and the poor non-short-preamble STA > would be left completely in the dark wrt. its NAV. Yes, indeed. In other words, this would be something that could work mostly in cases where there is a STA with very limited needs (e.g., send measurement results once an hour, etc.). I'm not aware of any such deployment, though. > Ohh. Just a few days ago I sent an email with a request for > interpretation (there really just is a typo in 802.11-2007 but...) That > got forwarded around a lot, but I guess at least TGmb will see it :) Yeah.. I'm sure it will show up in TGmb in Dallas meeting (mid-Nov). It might even get fixed eventually the 802.11-2010 (or 2011, or 2012, or who knows when.. ;-). -- Jouni Malinen PGP id EFC895FA