[wireless-regdb] EU Regulation on CAC time

[wireless-regdb] EU Regulation on CAC time

[Nicco Kunzmann (mail.ru)]

Dear list subscribers,

I was reading through the  db.txt file.
I did not see the CAC time for the country I live in, Germany.
According to [1], DFS frequencies are described.
However, I also read EN301893 [2] which is referenced by [1].
EN301893, page 104, Table D.1 describes the CAC times and handles the
range 5600MHz to 5650MHz specially with extended CAC times.
Now, I read the db.txt file [3], section DE.
There, I can not find the 5600MHz to 5650MHz range specified. Nor am I
able to locate information about the DFS-ETSI region.
I guess, the information can be inherited from somewhere.

Could you help me understand where the information for EN301893/ the
dfs_region "DFS-ETSI" is described?

I checked "wireless-regdb"[4] and "crda"[5] and could not find it.

Best regards,
Nicco


[1]:
https://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/Sachgebiete/Telekommunikation/Unternehmen_Institutionen/Frequenzen/Allgemeinzuteilungen/2010_07_WLAN_5GHz_pdf.pdf?__blob=publicationFile&v=3
English Version?
https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2005:187:0022:0024:EN:PDF
[2]:
http://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.00.07_20/en_301893v020007a.pdf
[3]:
https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=HEAD#n364
[4]:
https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git
[5]: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/crda.git/


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Re: [wireless-regdb] EU Regulation on CAC time

[Johannes Berg]

On Tue, 2018-03-20 at 23:48 +0100, Nicco Kunzmann (mail.ru) wrote:
> Dear list subscribers,
> 
> I was reading through the  db.txt file.
> I did not see the CAC time for the country I live in, Germany.
> According to [1], DFS frequencies are described.
> However, I also read EN301893 [2] which is referenced by [1].
> EN301893, page 104, Table D.1 describes the CAC times and handles the
> range 5600MHz to 5650MHz specially with extended CAC times.
> Now, I read the db.txt file [3], section DE.
> There, I can not find the 5600MHz to 5650MHz range specified. Nor am I
> able to locate information about the DFS-ETSI region.
> I guess, the information can be inherited from somewhere.
> 
> Could you help me understand where the information for EN301893/ the
> dfs_region "DFS-ETSI" is described?
> 
> I checked "wireless-regdb"[4] and "crda"[5] and could not find it.

The CAC times are currently hard-coded in the kernel. The new
regulatory db framework (loading it as a firmware file) has the ability
to provision it through there, but the wireless-regdb db.txt, parser &
generator doesn't support it yet.

CRDA is more or less dead - still used, but will not get any future
work.

johannes

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