wireless-regdb: Allow 6ghz in the US

[Chen-Yu Tsai]

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 PM <rmandrad at gmail.com> wrote:
>
> Allow 6ghz in the US
>
> https://www.federalregister.gov/documents/2020/05/26/2020-11236/unlicensed-u
> se-of-the-6-ghz-band allows the use of 6ghz in the US namely section
> 59 https://www.federalregister.gov/d/2020-11236/p-66 with absolute 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] https://lore.kernel.org/wireless-regdb/CAPRryQp6j4UKvLZCkMAuQdaxepMBETQUJ1eNULJSh3ZWXC0f5Q@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 <rmandrad at gmail.com>
>
> 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/unlicensed-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=40dBm(43dBm peak)
>
>
>