Date: Thu, 23 Feb 2017 09:35:32 -0600
From: Seth Forshee <seth.forshee@canonical.com>
To: Ryan Mounce <ryan@mounce.com.au>
Cc: wireless-regdb@lists.infradead.org, linux-wireless@vger.kernel.org,
        Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [PATCH v2] wireless-regdb: Update rules for Australia (AU) and
 add 60GHz rules
Message-ID: <20170223153532.GA3479@ubuntu-hedt> (sfid-20170223_164211_898446_6417EF38)
References: <20170223130142.GA90803@ubuntu-hedt>
 <20170223135253.1681-1-ryan@mounce.com.au>
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On Fri, Feb 24, 2017 at 12:22:53AM +1030, Ryan Mounce wrote:
> Sourced from the current legislation at
> https://www.legislation.gov.au/Details/F2016C00432
> 
> The current rules exceed legal limits between 5250-5330MHz, and permit
> illegal operation in 5600-5650MHz (disallowed regardless of DFS).
> 
> Frequency ranges and EIRP limits for all ranges have been updated to
> match items 59-63, 65 in the linked document. As the rules for AU have
> never previously mirrored local regulations, changes include a
> significant increase in the allowable 2.4GHz EIRP and smaller increases
> in most other bands.
> 
> In order to allow 80MHz operation between 5650-5730MHz (bordering two
> bands) the lower, more restrictive band has been rounded up by 5MHz.
> 
> Signed-off-by: Ryan Mounce <ryan@mounce.com.au>
> ---
>  db.txt | 15 ++++++++++-----
>  1 file changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/db.txt b/db.txt
> index 05108e0..00e81b6 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -85,12 +85,17 @@ country AT: DFS-ETSI
>  	# 60 GHz band channels 1-4, ref: Etsi En 302 567
>  	(57000 - 66000 @ 2160), (40)
>  
> +# Source:
> +# https://www.legislation.gov.au/Details/F2016C00432
> +# Both DFS-ETSI and DFS-FCC are acceptable per AS/NZS 4268 Appendix B
>  country AU: DFS-ETSI
> -	(2402 - 2482 @ 40), (20)
> -	(5170 - 5250 @ 80), (17), AUTO-BW
> -	(5250 - 5330 @ 80), (24), DFS, AUTO-BW
> -	(5490 - 5710 @ 160), (24), DFS
> -	(5735 - 5835 @ 80), (30)
> +	(2400 - 2483.5 @ 40), (36)

The mention of ETSI EN 300 328 in item 55 (a) leads me to believe that
this is the limit we should be using, i.e. 500 mW. It is a bit confusing
though since it seems like such devices would also fall under "digital
modulation transmitters." 

> +	(5150 - 5250 @ 80), (23), NO-OUTDOOR, AUTO-BW

This looks correct.

> +	(5250 - 5350 @ 80), (23), NO-OUTDOOR, AUTO-BW, DFS

Since this range requires TPC we need to set the power limit at 100 mW.

> +	(5470 - 5600 @ 80), (30), DFS
> +	(5650 - 5730 @ 80), (30), DFS

These ranges also require TPC so we need to set the limit at 500 mW.

> +	(5730 - 5850 @ 80), (36)

In the document the ranges are 5650-5725 MHz and 5725-5850 MHz. I
suspect that the existing rules fudge that to line up with the wifi
channels, which technically is okay because the rules in the former
range are more restrictive. I wonder if we shouldn't be recording them
here as per the document and adding AUTO-BW. Johannes, any thoughts?

> +	(57000 - 66000 @ 2160), (43), NO-OUTDOOR

This looks correct.

Thanks,
Seth