wireless-regdb: Update regulatory rules for Hong Kong (HK) on 5GHz and 6GHz

[Morgan Wong]

Dear Tsai,

Sorry about overlooking the second paragraph.


1. About the TPC issue, you are right, please ignore this part of request.

2. About 6GHz 320MHz bandwidth, I am grateful if you could generate the file.

Take your time. Thanks for your help. Have a good day.

Chen-Yu Tsai <wens at kernel.org> 於 2026年8月17日週一 下午2:54寫道：
>
> On Mon, Aug 17, 2026 at 2:17 PM Morgan Wong <pbodq2 at gmail.com> wrote:
> >
> > Dear all,
> >
> > Is there any problem about the patch and the reason? Any regulative
> > restriction conflict ?
>
> Sorry I haven't gotten around to it.
>
> > Morgan Wong <pbodq2 at gmail.com> 於 2026年8月4日週二 下午10:01寫道：
> > >
> > > Dear Tsai,
> > >
> > > The patch from git diff is now attached.
> > >
> > > I summarize again the changes, please decide.
> > >
> > > 1. 30dbm (1W) of TPC condition is applied on 5470-5730.
>
> As previously mentioned, Linux does not support TPC, so any power limits
> that require TPC do not apply. So the option is to use the "without TPC"
> option that normally halves the power limit.
>
> > > 2. Now, 320MHz bandwidth can be applied in 6GHz as WIFI 7 rolled out.
>
> This is fine.
>
> Do you want to do a proper Git patch? Or I will do the patch and list you
> as the issue reporter.
>
>
> Thanks
> ChenYu
>
> > > Chen-Yu Tsai <wens at kernel.org> 於 2026年8月4日週二 下午8:48寫道：
> > > >
> > > > On Mon, Aug 3, 2026 at 9:38 PM Morgan Wong <pbodq2 at gmail.com> wrote:
> > > > >
> > > > > Dear all,
> > > > >
> > > > > Currently:
> > > > >
> > > > > # Source:
> > > > > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1039.pdf
> > > > > (2.4 GHz and 5 GHz)
> > > > > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1081.pdf (6 GHz)
> > > > > country HK: DFS-ETSI
> > > > > (2400 - 2483.5 @ 40), (36)
> > > > > (5150 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR
> > > > > (5250 - 5350 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR
> > > > > (5470 - 5730 @ 160), (27), DFS
> > > > > (5730 - 5850 @ 80), (36)
> > > > > (5945 - 6425 @ 160), (24), NO-OUTDOOR
> > > > >
> > > > >
> > > > >
> > > > > Update :
> > > > >
> > > > > # Source:
> > > > > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1039.pdf
> > > > > (2.4 GHz and 5 GHz)
> > > > > # https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-E
> > > > > (2.4 GHz and 5 GHz)
> > > > > # https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.00.07_20/en_301893v020007a.pdf
> > > > > (2.4 GHz and 5 GHz)
> > > > > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1081.pdf (6 GHz)
> > > > > # https://www.etsi.org/deliver/etsi_en/303600_303699/303687/01.00.00_20/en_303687v010000a.pdf
> > > > > (6GHz)
> > > > > country HK: DFS-ETSI
> > > > > (2400 - 2483.5 @ 40), (36)
> > > > > (5150 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR
> > > > > (5250 - 5350 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR
> > > > > (5470 - 5730 @ 160), (30), DFS
> > > > > (5730 - 5850 @ 80), (36)
> > > > > (5945 - 6425 @ 320), (23), NO-OUTDOOR
> > > >
> > > > Please do a proper patch or at least diff. This is hard to spot differences.
> > > > And if it's not a patch it's more work.
> > > >
> > > > > Reason for change in 5470-5730 :
> > > > > The HK department, OFCA has its own requirement, 30dbm in addition to
> > > > > EITHER fulfilling FCC OR ETSI requirement. The rationale behind is
> > > > > having the biggest tolerance among major world standards to be an
> > > > > international city. The OFCA, 30dbm is the baseline value to be
> > > > > fulfilled in the highest priority.
> > > > >
> > > > > About FCC
> > > > > 27dbm (500mW) without TPC, 30dbm (1W) with TPC
> > > > > # https://www.ecfr.gov/current/title-47/part-15/subpart-E#p-15.407(h)(1)
> > > > >
> > > > > About UTSI (same as FCC)
> > > > > 27dbm (500mW) without TPC, 30dbm (1W) with TPC
> > > > > # https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.00.07_20/en_301893v020007a.pdf
> > > > > (page 17)
> > > > >
> > > > > A TPC (30dbm), 802.11h edition should be taken instead of 27dbm as I suggest.
> > > > > Or a TPC regulation flag may be a good idea to bind with 30dbm together.
> > > >
> > > > There is no TPC flag, hence the limit is set at 27 dBm.
> > > >
> > > > > Reason for change in  5945 - 6425 :
> > > > > The HK department, OFCA requires to have its own EIPR limit, 24dbm in
> > > > > addition to ETSI 23dbm.
> > > > > Therefore, the smaller value should be taken.
> > > > > (6GHz in HK requires no reference to FCC standards, unlike 5GHz situation)
> > > > > WIFI 7 allows 320MHz, the previous value, 160MHz was in wifi 6E era.
> > > > >
> > > > > # https://www.etsi.org/deliver/etsi_en/303600_303699/303687/01.00.00_20/en_303687v010000a.pdf
> > > > > (page 17)
> > > >
> > > > You mentioned in your reply that this change is invalid.
> > > >
> > > >
> > > > So to summarize, I don't see any change at all.
> > > >
> > > >
> > > > ChenYu
> > >
> > >
> > >
> > > --
> > > Regards,
> > >
> > > Morgan Wong
> >
> >
> >
> > --
> > Regards,
> >
> > Morgan Wong



-- 
Regards,

Morgan Wong