Return-path: Received: from mail.neratec.com ([46.140.151.2]:21142 "EHLO mail.neratec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754904AbbGCLIQ convert rfc822-to-8bit (ORCPT ); Fri, 3 Jul 2015 07:08:16 -0400 Message-ID: <55966D1B.1040603@neratec.com> (sfid-20150703_130821_535048_F32F7BF3) Date: Fri, 03 Jul 2015 13:08:11 +0200 From: Zefir Kurtisi MIME-Version: 1.0 To: Wei Zhong , seth.forshee@canonical.com CC: wireless-regdb@lists.infradead.org, linux-wireless@vger.kernel.org Subject: Re: wireless-regdb: update CA rules for 5600 - 5650 mHz References: In-Reply-To: Content-Type: text/plain; charset=utf-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 07/02/2015 07:44 AM, Wei Zhong wrote: > commit 2fef4cad8a1bd9cbbf178e59a1b3ca672b057095 > Author: Wei Zhong > Date: Wed Jul 1 22:39:09 2015 -0700 > > wireless-regdb: update CA rules for 5600 - 5650 mHz > > Related regulation: > http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html#s6.2.3 > > Frequency Bands 5470-5600 MHz and 5650-5725 MHz > Until further notice, devices subject to this section [i.e. Wifi device > supporting 5 GHz bands] shall not be capable of transmitting in the band > 5600-5650 MHz. This restriction is for the protection of Environment > Canada’s weather radars operating in this band. > > diff --git a/db.txt b/db.txt > index 809cd3c..da0cfad 100644 > --- a/db.txt > +++ b/db.txt > @@ -216,7 +216,8 @@ country CA: DFS-FCC > (2402 - 2472 @ 40), (30) > (5170 - 5250 @ 80), (17), AUTO-BW > (5250 - 5330 @ 80), (24), DFS, AUTO-BW > - (5490 - 5730 @ 160), (24), DFS > + (5490 - 5600 @ 80), (24), DFS > + (5650 - 5730 @ 40), (24), DFS > (5735 - 5835 @ 80), (30) > > # Source: > -- I believe this could also be interpreted differently. If the change is only about removing the weather radar band (5600-5650), the change should be - (5490 - 5730 @ 160), (24), DFS + (5490 - 5570 @ 80), (24), DFS + (5570 - 5590 @ 20), (24), DFS + (5650 - 5730 @ 80), (24), DFS The second rule explicitly states that channel 116 remains available for HT20. If this level of strict correctness is not needed, rule 1 and 2 combined would be - (5490 - 5730 @ 160), (24), DFS + (5490 - 5590 @ 80), (24), DFS + (5650 - 5730 @ 80), (24), DFS Cheers Zefir