[PATCH v2] wireless-regdb: Update 6 GHz rules for South Korea (KR)

[Chen-Yu Tsai]

On Thu, Apr 16, 2026 at 9:00 PM Louis Kotze <loukot at gmail.com> wrote:
>
> MSIT Announcement No. 2026-9 (February 10, 2026) revised the power
> limits for 6 GHz indoor WLAN:
>
>   Lower band (5925-6425 MHz): 1 W (30 dBm) EIRP, indoor
>   Upper band (6425-7125 MHz): 500 mW (27 dBm) EIRP, indoor

The document actually says "Radiated power" rather than EIRP. But
then it doesn't actually specify what kind of antenna.

> The previous entry used a single rule covering 5925-7125 MHz at
> 15 dBm, which does not reflect either the current lower or upper
> band limits.

MSIT announcement no. 2024-22 gives a PSD limit of 2 dBm / MHz.
At the smallest 20 MHz width, this gives a power limit of roughly
15.01 dBm. So I'd say the current values are correct, unless you
can point to some wording in the newer document that says the PSD
limit is superseded.


> Split into two frequency ranges so that devices operating in the
> lower band can use the higher power limit. Add AUTO-BW to both
> ranges so the kernel knows they can be combined.
>
> MSIT Announcement No. 2024-22 (May 30, 2024) sets the maximum
> occupied bandwidth to 320 MHz for both indoor and VLP categories.
>
> Reference:
> MSIT Announcement No. 2026-9 (power limits)
> https://www.msit.go.kr/bbs/view.do?sCode=user&mId=108&mPid=103&bbsSeqNo=83&nttSeqNo=3186355
> MSIT Announcement No. 2024-22 (technical standards, bandwidth)
> https://www.msit.go.kr/bbs/view.do?sCode=user&mId=108&mPid=103&bbsSeqNo=83&nttSeqNo=3175810
>
> Signed-off-by: Louis Kotze <loukot at gmail.com>
> ---
> Changes since v1:
>   - Split into two frequency ranges with AUTO-BW per Chen-Yu Tsai
>     review, instead of a single conservative rule at 27 dBm.
>   - Add MSIT 2026-9 as primary reference for power limits (replacing
>     CAICT secondary source).
>   - Add MSIT 2024-22 as primary reference for 320 MHz bandwidth.
>   - Send as standalone patch rather than part of 5-patch series.
>
> v1: https://lore.kernel.org/wireless-regdb/20260411222155.299441-3-loukot@gmail.com/
>
>  db.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/db.txt b/db.txt
> index 343b256..6b56ddd 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1136,7 +1136,8 @@ country KR: DFS-JP
>         (5470 - 5725 @ 160), (20), DFS
>         (5725 - 5850 @ 80), (23)
>         # 6 GHz band
> -       (5925 - 7125 @ 160), (15), NO-OUTDOOR
> +       (5925 - 6425 @ 320), (30), NO-OUTDOOR, AUTO-BW
> +       (6425 - 7125 @ 320), (27), NO-OUTDOOR, AUTO-BW

Please use the values and units given in the regulations.
So 1W and 500mW respectively.

>         # 60 GHz band channels 1-4
>         (57000 - 66000 @ 2160), (43)
>
> --
> 2.53.0
>