[PATCH] wireless-regdb: update regulatory rules for Bangladesh (BD)

[Ibrahim Hossain Abir]

Hi ChenYu,

Thank you for the review.

Regarding the reference:
The official BTRC circular (dated Sept 15, 2024) specifically
authorizes the 5925–6425 MHz frequency range for Wi-Fi/WLAN/IoT shared
usage in Bangladesh. However, this notice does not define explicit
EIRP power limits, TPC, or DFS requirements.

In the initial patch, standard conservative limits (such as 23 dBm for
6 GHz LPI) were derived from standard Wi-Fi 6E/7 spectrum norms.

Could you advise on how wireless-regdb prefers to handle cases where
the regulatory body approves the band without listing explicit EIRP
limits in their notice? Would setting a conservative default (like 20
dBm / 100 mW EIRP) for 5925–6425 MHz be acceptable for Patch v2?

Thanks,
Ibrahim Hossain Abir


On Mon, Aug 24, 2026 at 10:38 AM Chen-Yu Tsai <wens at kernel.org> wrote:
>
> On Mon, Aug 24, 2026 at 4:26 AM Ibrahim Hossain Abir <xbowpc at gmail.com> wrote:
> >
> > wireless-regdb: update regulatory rules for Bangladesh (BD)
> >
> > Update regulatory rules for Bangladesh (BD) based on the official BTRC
> > (Bangladesh Telecommunication Regulatory Commission) directive dated
> > September 15, 2024.
> >
> > Enables U-NII-1/2A, U-NII-2C (DFS), U-NII-3/4, and lower 6 GHz (5925-6425 MHz).
> >
> > Official BTRC Notice:
> > https://btrc.gov.bd/pages/notices/6922ee00dbfbab28ce0c438d
>
> This only says that the lower 6 GHz range is allowed. It does not say
> what the power limits are, or if there are any other restrictions.
>
> > User Impact Reference:
> > https://community.intel.com/t5/Wireless/6-GHz-Wi-Fi-6E-Not-Detected-on-Intel-AX211-in-Bangladesh/m-p/1740885
> >
> > Signed-off-by: Ibrahim Hossain Abir <xbowpc at gmail.com>
> > ---
> >  db.txt | 8 +++++---
> >  1 file changed, 5 insertions(+), 3 deletions(-)
> >
> > diff --git a/db.txt b/db.txt
> > index 0000000..1111111 100644
> > --- a/db.txt
> > +++ b/db.txt
> > @@ -223,5 +223,7 @@ country BD: DFS-JP
> >   (2402 - 2482 @ 40), (20)
> > - (5735 - 5835 @ 80), (30)
> > + (5150 - 5350 @ 80), (20), NO-OUTDOOR, AUTO-BW
> > + (5470 - 5725 @ 160), (20), DFS, AUTO-BW
> > + (5725 - 5850 @ 80), (30)
> > + (5925 - 6425 @ 320), (23), NO-OUTDOOR
>
> A reference with the band and power limits, as well as any other
> restrictions like DFS or TPC (andif TPC is required, what is the
> limit if TPC is not implemented) needs to be provided. We cannot
> put random numbers into the database without justification.
>
>
> Thanks
> ChenYu