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Reply-To: wens@kernel.org
From: Chen-Yu Tsai <wens@kernel.org>
Date: Wed, 5 Jun 2024 12:11:21 +0800
Message-ID: <CAGb2v67Crwo-qiS0hFrUdrjD4NK42_-s6_RhmusfpDd0SDZj2A@mail.gmail.com>
Subject: Re: [PATCH 4/4] wireless-regdb: Update regulatory info for Mexico
 (MX) on 6GHz
To: Ping-Ke Shih <pkshih@realtek.com>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>, 
	"wireless-regdb@lists.infradead.org" <wireless-regdb@lists.infradead.org>
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On Wed, Jun 5, 2024 at 10:53=E2=80=AFAM Ping-Ke Shih <pkshih@realtek.com> w=
rote:
>
> Chen-Yu Tsai <wens@kernel.org> wrote:
> > On Mon, Jun 3, 2024 at 2:10=E2=80=AFPM Ping-Ke Shih <pkshih@realtek.com=
> wrote:
> > >
> > > The Plenary Session of the Federal Telecommunications Institute (IFT)
> > > determined, in its IV ordinary session of 2023, to classify the
> > > 5925 - 6425 MHz frequency segment as free spectrum and issued the
> > > technical operating conditions that allow coexistence with the existi=
ng
> > > services in the country [2].
> > >
> > > Within the operating conditions of this band as free spectrum, its us=
e was
> > > determined for low power indoor and very low power indoor and outdoor
> > > systems.
> > >
> > > According to WBA Response to the Mexico IFT 6 GHz Consultation [3]. T=
he
> > > Low Power Indoor is
> > >         33 dBm Max Tx Power (EIRP) & 8dBm/MHz PSD (EIRP) for Access P=
oints
> > > and
> > >         27 dBm Max Tx Power (EIRP) & 2dBm/MHz PSD (EIRP) for Clients
> > >
> > > The Very Low Power is 4 dBm Max Tx Power (EIRP)
> > >
> > > [1]
> > https://www.ift.org.mx/comunicacion-y-medios/comunicados-ift/es/el-plen=
o-del-ift-clasifica-la-banda-de
> > -5925-6425-mhz-como-espectro-libre-comunicado-132023-16-de
> >
> > Not sure what this reference is for?
>
> This is entry page of [2]. I will remove it or add description about it.
>
> >
> > > [2]
> > https://www.ift.org.mx/sites/default/files/comunicacion-y-medios/comuni=
cados-ift/comunicado13ift_1.pdf
> > > [3]
> > https://www.ift.org.mx/sites/default/files/industria/temasrelevantes/co=
nsultaspublicas/documentos/2021
> > 0119-cpi6ghz2020-162.pdf
> >
> > [2] does not say what limits were adopted, nor that the WBA's
> > recommendations [3] were adopted in its entirety. Without such
> > wording, [3] is just a recommendation, not the final rule. This
> > needs some more information.
>
> I will try to search for the adopted power limits. If I can't get that sh=
ortly,
> I will only submit 3 patches by v2.
>
> A question about TX power value. Is a special value existing to indicate =
the
> value is uncertain?

No such value exists. If the value is uncertain, then we simply can't
add it to the database.


ChenYu