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In-Reply-To: <20100525132035.GA863@ee.oulu.fi>
References: <20100525132035.GA863@ee.oulu.fi>
From: "Luis R. Rodriguez" <mcgrof@gmail.com>
Date: Wed, 26 May 2010 11:30:37 -0700
Message-ID: <AANLkTik7vyllINxzeMN2HPD7cqpQH2tZegc3-VsNa8da@mail.gmail.com>
Subject: Re: wireless-regdb: FI/CZ updates
To: Pekka Pietikainen <pp@ee.oulu.fi>,
	Michael Green <Michael.Green@atheros.com>,
	David Quan <David.Quan@atheros.com>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org
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Sender: linux-wireless-owner@vger.kernel.org

On Tue, May 25, 2010 at 6:20 AM, Pekka Pietikainen <pp@ee.oulu.fi> wrote:
> Was looking at the relevant local regulations and noticed the regdb allowed
> less power at 5GHz than is actually allowed. Until I found the "If you don't do TPC you have
> to reduce your power by 3dB sometimes" bit on the next page.
>
> And looks like someone that did the entry for CZ fell into the same trap, they have
>
> "stations in the c and d bands must employ automatic transmitter power
> control, which provides, on average, an interference mitigation factor at
> least 3 dB on the maximum permitted output power of the systems.  If
> automatic power control is not employed, the maximum permitted mean e.i.r.p.
> and the corresponding limit of the mean e.i.r.p.  density for bands c and d
> must be reduced by 3 dB;"
>
> Please sanity check, I became very confused while looking into this.
> (like some places starting their freq ranges at 2400, others at 2402. Didn't
> touch those, regs say 2400-2485,5, 5150-5250, 5250-5350 and 5470-5725)
>
> Signed-off-by: Pekka Pietikäinen <pp@ee.oulu.fi>
> diff -up ./db.txt.orig ./db.txt
> --- ./db.txt.orig       2010-05-25 15:03:48.812116854 +0300
> +++ ./db.txt    2010-05-25 15:58:43.947117884 +0300
> @@ -170,11 +170,13 @@ country CY:
>
>  # Data from http://www.ctu.eu/164/download/VOR/VOR-12-08-2005-34.pdf
>  # and http://www.ctu.eu/164/download/VOR/VOR-12-05-2007-6-AN.pdf
> +# Power at 5250 - 5350 MHz and 5470 - 5725 MHz can be doubled if TPC is
> +# implemented.
>  country CZ:
>        (2400 - 2483.5 @ 40), (N/A, 100 mW)
>        (5150 - 5250 @ 40), (N/A, 200 mW), NO-OUTDOOR
> -       (5250 - 5350 @ 40), (N/A, 200 mW), NO-OUTDOOR, DFS
> -       (5470 - 5725 @ 40), (N/A, 1000 mW), DFS
> +       (5250 - 5350 @ 40), (N/A, 100 mW), NO-OUTDOOR, DFS
> +       (5470 - 5725 @ 40), (N/A, 500 mW), DFS

Michael -- as per David's review this seems fine, please let us know
if you agree.

>  # Data from "Frequenznutzungsplan" (as published in April 2008),
>  # downloaded from http://www.bundesnetzagentur.de/media/archive/13358.pdf
> @@ -226,11 +228,15 @@ country ES:
>        (5250 - 5330 @ 40), (N/A, 20), DFS
>        (5490 - 5710 @ 40), (N/A, 27), DFS
>
> +# Data from FICORA Regulation 15Z / 2009 M
> +# http://www.ficora.fi/attachments/suomiry/5l1x1FIIk/Viestintavirasto15Z2009M.pdf
> +# Power at 5250 - 5350 MHz and 5470 - 5725 MHz can be doubled if TPC is
> +# implemented.
>  country FI:
> -       (2402 - 2482 @ 40), (N/A, 20)
> -       (5170 - 5250 @ 40), (N/A, 20)
> -       (5250 - 5330 @ 40), (N/A, 20), DFS
> -       (5490 - 5710 @ 40), (N/A, 27), DFS
> +       (2402 - 2482 @ 40), (N/A, 100mW)
> +       (5170 - 5250 @ 40), (N/A, 200mW), NO-OUTDOOR
> +       (5250 - 5330 @ 40), (N/A, 100mW), NO-OUTDOOR, DFS
> +       (5490 - 5710 @ 40), (N/A, 500mW), DFS

Pekka, please remove these changes from this patch, you want to make
your patches atomic, with only one purpose to help the review process
easier. You stashed changes to CZ & FI on one... You also switched
from dBm to mW and note how you actually did change the EIRP here for
only one for FI. Please provide a separate set of patches for that for
FI. If you want to switch to mW for all of the entries for FI first do
that, and then on a separate patch make the actual regulatory changes
so this is crystal clear for the review process.

So in summary: please post another separate patch for CZ and please
lets wait on Michael's final ACK. The other FI changes should be split
up. Also please CC Michael And David on your e-mails for regulatory
changes, they are not subscribed to linux-wireless but can certainly
help with reviewing these changes. I'll post some suggested updates on
guidelines for patches to wireless-regdb later.

Thanks,

  Luis