wireless-regdb: Discussion of MGWS/60GHz rules for Philippines (PH)

wireless-regdb: Discussion of MGWS/60GHz rules for Philippines (PH)

[Gacel Perfinian]

Hello,

I have noticed that in reviewing the database, the maximum power for
MGWS (60GHz) is set to 24 dBm. The relevant regulation [1] has only
authorized to accept MGWS devices, however it never stated what maximum
power should MGWS devices have, nor the explanatory document [2] states
the power requirements. Looking at the latest revisions [3], it seems
that it was never specified, at least for HIPERLAN/RLAN devices.

The entry was committed as part of a rules cleanup (9dc0800cdd7a) [4],
but the conversations [5][6] did not state where the 24 dBm value was
derived from.

Gacel Perfinian

[1] https://ntc.gov.ph/wp-content/uploads/2016/MC/MC-01-01-2016.pdf
[2] https://ntc.gov.ph/wp-content/uploads/2016/MC/Explanatory-MC-No-01-01-2016.pdf
[3] https://ntc.gov.ph/wp-content/uploads/2024/MEMORANDUM%20CIRCULAR/NTC%20MC%20No.%20002-07-2024.pdf
[4] https://git.kernel.org/pub/scm/linux/kernel/git/wens/wireless-regdb.git/commit/?id=9dc0800cdd7aeeae273b983973a1749f73008291
[5] https://lists.infradead.org/pipermail/wireless-regdb/2022-December/001401.html
[6] https://lists.infradead.org/pipermail/wireless-regdb/2023-June/001440.html

Re: wireless-regdb: Discussion of MGWS/60GHz rules for Philippines (PH)

[Kleo Bercero]

Good day!

Providing context for specifying 24 dBm for 57-66GHz.

Please kindly reconfirm and maybe ask NTC to create a power limit on paper.

Thanks!

Kleo Bercero

---

Date: Wed, 24 May 2023 10:59:38 -0500
From: sforshee <sforshee@kernel.org>
To: Kleo Bercero <kbeflo@gmail.com>
Subject: Re: wireless-regdb: Update regulatory rules for Philippines (PH)

On Mon, May 22, 2023 at 06:41:49PM +0800, Kleo Bercero wrote:
 > Good day,
 >
 > I have amended the previous patch. Please review before I submit the 
patch.
 >
 > I have decided to remove the 915-918 frequency range as previous 
memorandum
 > circulars fail to provide citation for power specifications and also 
I have
 > found it to be the only entry with this frequency range on 
wireless-regdb.
 >
 > For channel bandwidths NTC's memorandum circulars does not specify 
channel
 > bandwidth except for 57-66GHz.
 >
 > For 57-66GHz I have contacted the local officials for this frequency 
range
 > and they have responded with:
 >
 > On Wed, Jan 11, 2023 at 4:06 PM NTC spectrum <spectrum@ntc.gov.ph> wrote:
 >
 > > Good day! The power output for 57-66 GHz ( M.C. No. 01-01-2016) is 250
 > > milliwatts ( indoor only)
 > >
 >
 > Upon reading the cited document it does not mention anything regarding
 > operating power specification (it does cite ITU-R M.2003-1 but it 
does not
 > lead to any power specs). I'm not optimistic if I could provide any more
 > document regarding this frequency range other than citing their reply.

Okay. It would be nice to cite an official document, but I'm content
with using the value provided by the local officials.

 > Power output is derived from MC 03-05-2007 on the following frequencies
 > with mW eirp specifications
 >
 > 2400 - 2483.5 MHz (100 mW eirp)
 > 5150 - 5350 MHz ( 200 mW eirp)
 > 5470 - 5850 MHz ( 250 mW eirp)

---

From: NTC spectrum <spectrum@ntc.gov.ph>
Date: Tue, 10 Jan 2023 08:41:16 +0800
Subject: Re: wireless-regdb patch
To: kleo <kleo@hak.dog>

Good day! The power output for 57-66 GHz ( M.C. No. 01-01-2016) is 250
milliwatts ( indoor only)

On Mon, Dec 26, 2022 at 1:41 AM kleo <kleo@hak.dog> wrote:

 > Good day,
 >
 > I would like to reach out to NTC for help to update our entries on
 > wireless-regdb (is a regulatory database used by Linux) found at
 > kernel.org, more info can be found at
 > https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb.
 >
 > We would like to submit patches for our country's entry found at
 > 
https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.g=
it/tree/db.txt?id=3DHEAD#n1370.
 > You can also find other countries' entries there.
 >
 > Here is our current entry.
 >
 > country PH: DFS-FCC
 >         (2402 - 2482 @ 40), (20)
 >         (5170 - 5250 @ 80), (17), AUTO-BW
 >         (5250 - 5330 @ 80), (24), DFS, AUTO-BW
 >         (5490 - 5730 @ 160), (24), DFS
 >         (5735 - 5835 @ 80), (30)
 >
 > On gathering the required memorandums and additional information the
 > following is our proposed patch
 >
 > # Source:
 > #
 > 
https://ntc.gov.ph/wp-content/uploads/2015/10/LawsRulesRegulations/MemoCi=
rculars/MC2007/MC-03-05-2007.pdf
 > # https://ntc.gov.ph/wp-content/uploads/2020/02/MC-01-02-2020.pdf
 > #
 > 
https://ntc.gov.ph/wp-content/uploads/2015/10/LawsRulesRegulations/MemoCi=
rculars/MC2003/MC-09-09-2003.pdf
 > country PH: DFS-FCC
 >     # reference: page 99, 890 MHz =E2=80=93 1300 MHz
 > 
https://ntc.gov.ph/wp-content/uploads/2022/frequencyallocations/NRFAT_Rev=
_2020.pdf
 >     # reference: section 1.1 and 3.1, no power specification
 > 
https://ntc.gov.ph/wp-content/uploads/2015/10/LawsRulesRegulations/MemoCi=
rculars/MC2013/MC-03-08-2013.pdf
 >     (915 - 918 @ 2), (30)
 >     # reference: section 1.1 and 3.1
 > 
https://ntc.gov.ph/wp-content/uploads/2015/10/LawsRulesRegulations/MemoCi=
rculars/MC2013/MC-03-08-2013.pdf
 >     (2400 - 2483.5 @ 40), (24)
 >     (5150 - 5250 @ 80), (24), AUTO-BW
 >     (5250 - 5350 @ 80), (24), DFS, AUTO-BW
 >     (5470 - 5730 @ 160), (24), DFS
 >     (5730 - 5850 @ 80), (30)
 >     # reference: operating parameters,no power specification
 > 
https://ntc.gov.ph/wp-content/uploads/2016/MC/Explanatory-MC-No-01-01-201=
6.pdf
 >     (57000 - 66000 @ 2160), (40)
 >
 >
 > We are currently missing power specifications reference for (915 - 918 @
 > 2), (30) and (57000 - 66000 @ 2160), (40). The maintainer requires us to
 > submit referenced memorandum for the patch.
 >
 > Any corrections for the patch are welcome.
 >
 > Thank you!
 >
 > Kleo Bercero
 > kbeflo@gmail.com /
 > kleo@hak.dog
 > https://github.com/kleo
 >
 >
 >
 >