Re: [PATCH 4/6] wireless-regdb: Update regulatory info for Kenya (KE) for 2022

On Fri, Jun 21, 2024 at 1:22 PM Ping-Ke Shih <[email protected]> wrote:
>
> Communications of Authority of Kenya issued GUIDELINES ON THE USE OF
> RADIOFREQUENCY SPECTRUM BY SHORT RANGE DEVICES on JUNE 2022 [1].
> The section 5.8. covers frequency bands and technical parameters for
> non-specific short range applications and wireless access systems.
>
>  - 2400-2483.5 MHz: 2W e.i.r.p.
>  - 5150-5350 MHz: 200mW; max e.i.r.p. density of 10mW/MHz
>  - 5470-5725 MHz: 250mW; Max mean e.i.r.p. of 1W &
>                   Max mean e.i.r.p. density of 50mW /MHz
>  - 5725-5875 MHz: 23 dBm/MHz; Mean e.i.r.p. of 2W in any 10 MHz band
>  - 5925-6425 MHz:
>    * LPI: 23 dBm (200 mW)
>           Mean e.i.r.p. density for in-band emissions 10 dBm/MHz
>           Indoor only
>    * VLP: 14 dBm (25 mW)
>           Mean e.i.r.p. density for in-band emissions 1 dBm/MHz
>           Indoor and outdoor use
>
> [1] https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf
>
> Signed-off-by: Ping-Ke Shih <[email protected]>
> ---
>  db.txt | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/db.txt b/db.txt
> index a742498c1116..5603933e3563 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -982,11 +982,14 @@ country JP: DFS-JP
>         # ref: http://www.arib.or.jp/english/html/overview/doc/1-STD-T74v1_1.pdf
>         (57000 - 66000 @ 2160), (10 mW)
>
> +# Source:
> +# https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf
>  country KE: DFS-JP
> -       (2402 - 2482 @ 40), (20)
> -       (5170 - 5250 @ 80), (23)
> -       (5490 - 5570 @ 80), (30), DFS
> -       (5735 - 5775 @ 40), (23)
> +       (2400 - 2483.5 @ 40), (33)
> +       (5150 - 5350 @ 80), (23), DFS
> +       (5490 - 5570 @ 80), (24), DFS

This does not align with the range given in the reference.

> +       (5735 - 5775 @ 40), (23), DFS

This does not align with the range given in the reference.

Also, for the 5 GHz and 5.8 GHz ranges, TPC is required. If we reference
ETSI EN 301 893, TPC requires being able to reduce TX power by up to 6 dB.

Not sure if it makes sense to just lower the power limit by 6 dB to
conform though. If not then these bands are not usable.

> +       (5925 - 6425 @ 320), (23), NO-OUTDOOR

Please use values and units as given in the reference.


Thanks
ChenYu

>
>  country KH: DFS-ETSI
>         (2402 - 2482 @ 40), (20)
> --
> 2.25.1
>