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[86.18.22.167]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43aba57145esm14718615e9.30.2025.02.26.01.40.47 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Feb 2025 01:40:47 -0800 (PST) From: To: Cc: "'linux-wireless'" , "'wireless-regdb'" References: <000201db8822$98f28da0$cad7a8e0$@gmail.com> <000901db882d$8cb13090$a61391b0$@gmail.com> In-Reply-To: Subject: RE: wireless-regdb: Allow 6ghz in the US Date: Wed, 26 Feb 2025 09:40:47 -0000 Message-ID: <001e01db8832$844ef130$8cecd390$@gmail.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQMUrzCf8XdNoAU6+fu4ECJnDc0awgHIktuQAWl/dqQCwiE64rC3Ybxg Content-Language: en-gb wireless-regdb: Allow 6ghz in the US by removing NO-IR The Federal Communications Commission on 05/26/2020 allowed for the use = unlicensed use of the 6GHz band [1]. Currently the settings for US have = non-IR. In order to comply with this legislation [1], the patch removes = the NO-IR flag The power limit is not increased from 12 dBm to 30 dBm to comply with = the PSD requirements when using a 20 MHz channel [1] = https://www.federalregister.gov/documents/2020/05/26/2020-11236/unlicense= d-use-of-the-6-ghz-band#p-66 Signed-off-by: Rudy Andram diff --git a/db.txt b/db.txt index 803f1bc..ffcb0a6 100644 --- a/db.txt +++ b/db.txt @@ -1953,7 +1953,7 @@ country US: DFS-FCC (5850 - 5895 @ 40), (27), NO-OUTDOOR, AUTO-BW, NO-IR # 6g band # = https://www.federalregister.gov/documents/2020/05/26/2020-11236/unlicense= d-use-of-the-6ghz-band - (5925 - 7125 @ 320), (12), NO-OUTDOOR, NO-IR + (5925 - 7125 @ 320), (12), NO-OUTDOOR # 60g band # reference: section IV-D = https://docs.fcc.gov/public/attachments/FCC-16-89A1.pdf # channels 1-6 EIRP=3D40dBm(43dBm peak) -----Original Message----- From: Chen-Yu Tsai =20 Sent: 26 February 2025 09:16 To: rmandrad@gmail.com Cc: linux-wireless ; wireless-regdb = Subject: Re: wireless-regdb: Allow 6ghz in the US (When replying, please reply to all) On Wed, Feb 26, 2025 at 5:05=E2=80=AFPM wrote: > > Thank you. Apologies this is the first time submitting a kernel patch. = > The original submission set NO-IR where clearly the document notes it=20 > is allowed as section 59 states hence the patch - with increase usage=20 > of 6Ghz we have now Openwrt users complaining they can't the band in=20 > the US due to NO-IR > > Shall I update the patch to only remove NO-IR and increase power to 30 = dBm ? As explained, the limit is lowered from 30 dBm to 12 dBm to comply with = the PSD requirements when using a 20 MHz channel. I suspect no one would = use such a narrow band, but the requirements exist and the database rule = should not be written in a way that allows the user to exceed the limit, = i.e. using 30 dBm on a 20 MHz channel. So please update the patch to only remove NO-IR. You can look at = previous commits to see how we put URLs in the commit message. Thanks ChenYu > Thank you again > > -----Original Message----- > From: Chen-Yu Tsai > Sent: 26 February 2025 08:58 > To: rmandrad@gmail.com > Cc: linux-wireless@vger.kernel.org;=20 > wireless-regdb@lists.infradead.org; Dennis Bland=20 > ; Ping-Ke Shih > Subject: Re: wireless-regdb: Allow 6ghz in the US > > CC-ing Dennis, the original submitter, and also Ping-Ke, who has done = a lot of 6 GHz updates, for more information. > > On Wed, Feb 26, 2025 at 4:03=E2=80=AFPM wrote: > > > > Allow 6ghz in the US > > > > https://www.federalregister.gov/documents/2020/05/26/2020-11236/unli > > ce nsed-u se-of-the-6-ghz-band allows the use of 6ghz in the US=20 > > namely section > > 59 https://www.federalregister.gov/d/2020-11236/p-66 with absolute=20 > > radiated power of 30 dBm for the 320 megahertz channel > > Please don't wrap URLs. > > Please see the original submission [1], which explains why the power = limit is so low. Basically, neither the database nor the kernel supports = specifying power spectral density limits, so we can only take the = narrowest bandwidth to calculate the applicable power limit. > > [1]=20 > https://lore.kernel.org/wireless-regdb/CAPRryQp6j4UKvLZCkMAuQdaxepMBET > QUJ1eNULJSh3ZWXC0f5Q@mail.gmail.com/ > > > based on this remove NO-IR flag and allow 30 dBm max power > > The original submission mentioned NO-IR requirements, though I did not = find such wording. Dennis, do you have any ideas? > > > Signed-off-by: Rudy Andram > > > > diff --git a/db.txt b/db.txt > > index 803f1bc..bc2b4fe 100644 > > --- a/db.txt > > +++ b/db.txt > > @@ -1953,7 +1953,8 @@ country US: DFS-FCC > > (5850 - 5895 @ 40), (27), NO-OUTDOOR, AUTO-BW, NO-IR > > # 6g band > > # > > https://www.federalregister.gov/documents/2020/05/26/2020-11236/unli > > ce > > nsed-u > > se-of-the-6ghz-band > > - (5925 - 7125 @ 320), (12), NO-OUTDOOR, NO-IR > > + (5925 - 6425 @ 320), (30), NO-OUTDOOR > > + (6525 - 6875 @ 320), (30), NO-OUTDOOR > > The database entry targets LPI usage instead of standard usage, which = requires the presence of AFC, which is also a requirement that the = database is unable to represent. And under LPI usage, the full 6GHz band = (U-NII-5, 6, 7) is available. > > > Thanks > ChenYu > > > # 60g band > > # reference: section IV-D > > https://docs.fcc.gov/public/attachments/FCC-16-89A1.pdf > > # channels 1-6 EIRP=3D40dBm(43dBm peak) > > > > > > >