* [wireless-regdb] Fwd: possible mismatch Canadian regulatory info [not found] <CAPw1JcdLDkW9xEUfh-764kuC643DAJ+qWNf4RxmoyUXbpc-D5w@mail.gmail.com> @ 2017-02-06 19:12 ` cory novak 2017-02-06 19:39 ` Seth Forshee 0 siblings, 1 reply; 11+ messages in thread From: cory novak @ 2017-02-06 19:12 UTC (permalink / raw) To: wireless-regdb (sorry if this is a duplicate, got a 'we don't accept html mails' error back) ---------- Forwarded message ---------- From: cory novak <cory.novak@gmail.com> Date: Mon, Feb 6, 2017 at 11:07 AM Subject: possible mismatch Canadian regulatory info To: wireless-regdb@lists.infradead.org I really tried to use alternate mediums before bothering this list with info that appears to me to be mismatched, but, could easily simply be a result of my lack of knowledge. Here's my info: Canada values from this source: http://git.kernel.org/cgit/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=HEAD For Canada (5170 - 5250 is where I'm focusing): country CA: DFS-FCC (2402 - 2472 @ 40), (30) (5170 - 5250 @ 80), (17), AUTO-BW (5250 - 5330 @ 80), (24), DFS, AUTO-BW (5490 - 5600 @ 80), (24), DFS (5650 - 5730 @ 80), (24), DFS (5735 - 5835 @ 80), (30) *SEEM* to differ to my completely amateur eye vs industry canada section 6.2 here: http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html#s6.2 This is the applicable text for that band: "The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10B, dBm, whichever power is less. B is the 99% emission bandwidth in megahertz. The e.i.r.p. spectral density shall not exceed 10 dBm in any 1.0 MHz band." An easier source to parse for the IC data : http://www.semfionetworks.com/blog/industry-canada-new-5ghz-band-regulations This is the output from my Archer C2600: * 5180 MHz [36] (17.0 dBm) * 5200 MHz [40] (17.0 dBm) * 5220 MHz [44] (17.0 dBm) * 5240 MHz [48] (17.0 dBm) It appears that the 5170-5250 band is way under spec at 17dbm instead of 23dbm. thanks _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] Fwd: possible mismatch Canadian regulatory info 2017-02-06 19:12 ` [wireless-regdb] Fwd: possible mismatch Canadian regulatory info cory novak @ 2017-02-06 19:39 ` Seth Forshee 2017-02-06 19:44 ` cory novak 0 siblings, 1 reply; 11+ messages in thread From: Seth Forshee @ 2017-02-06 19:39 UTC (permalink / raw) To: cory novak; +Cc: wireless-regdb On Mon, Feb 06, 2017 at 11:12:45AM -0800, cory novak wrote: > (sorry if this is a duplicate, got a 'we don't accept html mails' error back) > ---------- Forwarded message ---------- > From: cory novak <cory.novak@gmail.com> > Date: Mon, Feb 6, 2017 at 11:07 AM > Subject: possible mismatch Canadian regulatory info > To: wireless-regdb@lists.infradead.org > > > I really tried to use alternate mediums before bothering this list > with info that appears to me to be mismatched, but, could easily > simply be a result of my lack of knowledge. Here's my info: > > > Canada values from this source: > http://git.kernel.org/cgit/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=HEAD > > For Canada (5170 - 5250 is where I'm focusing): > > country CA: DFS-FCC > (2402 - 2472 @ 40), (30) > (5170 - 5250 @ 80), (17), AUTO-BW > (5250 - 5330 @ 80), (24), DFS, AUTO-BW > (5490 - 5600 @ 80), (24), DFS > (5650 - 5730 @ 80), (24), DFS > (5735 - 5835 @ 80), (30) > > *SEEM* to differ to my completely amateur eye vs industry canada > section 6.2 here: > http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html#s6.2 > > This is the applicable text for that band: > > "The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10B, dBm, > whichever power is less. B is the 99% emission bandwidth in megahertz. > The e.i.r.p. spectral density shall not exceed 10 dBm in any 1.0 MHz > band." > > An easier source to parse for the IC data : > http://www.semfionetworks.com/blog/industry-canada-new-5ghz-band-regulations > > This is the output from my Archer C2600: * 5180 MHz [36] (17.0 dBm) > * 5200 MHz [40] (17.0 dBm) > * 5220 MHz [44] (17.0 dBm) > * 5240 MHz [48] (17.0 dBm) > > > It appears that the 5170-5250 band is way under spec at 17dbm instead of 23dbm. It looks to me like you are correct. Would you like to send a patch? Or if you aren't familiar with patching the regulatory db I can generate one. Thanks, Seth _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] Fwd: possible mismatch Canadian regulatory info 2017-02-06 19:39 ` Seth Forshee @ 2017-02-06 19:44 ` cory novak 2017-02-06 20:50 ` [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada Seth Forshee 0 siblings, 1 reply; 11+ messages in thread From: cory novak @ 2017-02-06 19:44 UTC (permalink / raw) To: wireless-regdb On Mon, Feb 6, 2017 at 11:39 AM, Seth Forshee <seth.forshee@canonical.com> wrote: > On Mon, Feb 06, 2017 at 11:12:45AM -0800, cory novak wrote: >> (sorry if this is a duplicate, got a 'we don't accept html mails' error back) >> ---------- Forwarded message ---------- >> From: cory novak <cory.novak@gmail.com> >> Date: Mon, Feb 6, 2017 at 11:07 AM >> Subject: possible mismatch Canadian regulatory info >> To: wireless-regdb@lists.infradead.org >> >> >> I really tried to use alternate mediums before bothering this list >> with info that appears to me to be mismatched, but, could easily >> simply be a result of my lack of knowledge. Here's my info: >> >> >> Canada values from this source: >> http://git.kernel.org/cgit/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=HEAD >> >> For Canada (5170 - 5250 is where I'm focusing): >> >> country CA: DFS-FCC >> (2402 - 2472 @ 40), (30) >> (5170 - 5250 @ 80), (17), AUTO-BW >> (5250 - 5330 @ 80), (24), DFS, AUTO-BW >> (5490 - 5600 @ 80), (24), DFS >> (5650 - 5730 @ 80), (24), DFS >> (5735 - 5835 @ 80), (30) >> >> *SEEM* to differ to my completely amateur eye vs industry canada >> section 6.2 here: >> http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html#s6.2 >> >> This is the applicable text for that band: >> >> "The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10B, dBm, >> whichever power is less. B is the 99% emission bandwidth in megahertz. >> The e.i.r.p. spectral density shall not exceed 10 dBm in any 1.0 MHz >> band." >> >> An easier source to parse for the IC data : >> http://www.semfionetworks.com/blog/industry-canada-new-5ghz-band-regulations >> >> This is the output from my Archer C2600: * 5180 MHz [36] (17.0 dBm) >> * 5200 MHz [40] (17.0 dBm) >> * 5220 MHz [44] (17.0 dBm) >> * 5240 MHz [48] (17.0 dBm) >> >> >> It appears that the 5170-5250 band is way under spec at 17dbm instead of 23dbm. > > It looks to me like you are correct. Would you like to send a patch? Or > if you aren't familiar with patching the regulatory db I can generate > one. > > Thanks, > Seth > Hi Seth Just a dumb user here, I'd appreciate it if you'd go ahead. thanks :) Cory _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-06 19:44 ` cory novak @ 2017-02-06 20:50 ` Seth Forshee 2017-02-07 7:52 ` Johannes Berg 2017-03-01 15:49 ` Seth Forshee 0 siblings, 2 replies; 11+ messages in thread From: Seth Forshee @ 2017-02-06 20:50 UTC (permalink / raw) To: wireless-regdb; +Cc: cory novak Based on the information from [1] the power limit for 5150-5250 MHz can be increased to 23 dBm. Also update some rules to match exact frequency ranges given in that document. [1] http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html Signed-off-by: Seth Forshee <seth.forshee@canonical.com> --- db.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/db.txt b/db.txt index 05108e0d4d1c..699c1e7a713f 100644 --- a/db.txt +++ b/db.txt @@ -230,9 +230,9 @@ country BZ: DFS-JP country CA: DFS-FCC (2402 - 2472 @ 40), (30) - (5170 - 5250 @ 80), (17), AUTO-BW - (5250 - 5330 @ 80), (24), DFS, AUTO-BW - (5490 - 5600 @ 80), (24), DFS + (5150 - 5250 @ 80), (23), AUTO-BW + (5250 - 5350 @ 80), (24), DFS, AUTO-BW + (5470 - 5600 @ 80), (24), DFS (5650 - 5730 @ 80), (24), DFS (5735 - 5835 @ 80), (30) -- 2.7.4 _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-06 20:50 ` [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada Seth Forshee @ 2017-02-07 7:52 ` Johannes Berg 2017-02-07 14:04 ` Seth Forshee 2017-03-01 15:49 ` Seth Forshee 1 sibling, 1 reply; 11+ messages in thread From: Johannes Berg @ 2017-02-07 7:52 UTC (permalink / raw) To: Seth Forshee, wireless-regdb; +Cc: cory novak On Mon, 2017-02-06 at 14:50 -0600, Seth Forshee wrote: > + (5150 - 5250 @ 80), (23), AUTO-BW For 20 MHz this is right, since the document says: The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10 B, dBm, whichever power is less. B is the 99% emission bandwidth in megahertz. The e.i.r.p. spectral density shall not exceed 10 dBm in any 1.0 MHz band. However, for < 20 MHz, like 5 or 10, which we in theory do support, you can't use that much due to the spectral density requirement. It seems possible that that's where the 17 dBm came from, since 10 + 10 log10(5) is about 17. johannes _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-07 7:52 ` Johannes Berg @ 2017-02-07 14:04 ` Seth Forshee 2017-02-07 14:15 ` Johannes Berg 2017-02-13 13:58 ` Matthias May 0 siblings, 2 replies; 11+ messages in thread From: Seth Forshee @ 2017-02-07 14:04 UTC (permalink / raw) To: Johannes Berg; +Cc: cory novak, wireless-regdb On Tue, Feb 07, 2017 at 08:52:30AM +0100, Johannes Berg wrote: > On Mon, 2017-02-06 at 14:50 -0600, Seth Forshee wrote: > > + (5150 - 5250 @ 80), (23), AUTO-BW > > For 20 MHz this is right, since the document says: > > The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10 B, > dBm, whichever power is less. B is the 99% emission bandwidth in > megahertz. The e.i.r.p. spectral density shall not exceed 10 dBm in > any 1.0 MHz band. > > However, for < 20 MHz, like 5 or 10, which we in theory do support, you > can't use that much due to the spectral density requirement. It seems > possible that that's where the 17 dBm came from, since 10 + 10 log10(5) > is about 17. Yes, thanks. I had forgotten to consider bandwidths less than 20 MHz. Seth _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-07 14:04 ` Seth Forshee @ 2017-02-07 14:15 ` Johannes Berg 2017-02-13 13:58 ` Matthias May 1 sibling, 0 replies; 11+ messages in thread From: Johannes Berg @ 2017-02-07 14:15 UTC (permalink / raw) To: Seth Forshee; +Cc: cory novak, wireless-regdb > Yes, thanks. I had forgotten to consider bandwidths less than 20 MHz. > We really should add the ability to capture this, but we haven't gotten that now since we can't change the format ... another thing waiting for the signed file loader. johannes _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-07 14:04 ` Seth Forshee 2017-02-07 14:15 ` Johannes Berg @ 2017-02-13 13:58 ` Matthias May 2017-03-01 15:07 ` Seth Forshee 1 sibling, 1 reply; 11+ messages in thread From: Matthias May @ 2017-02-13 13:58 UTC (permalink / raw) To: wireless-regdb On 07/02/17 15:04, Seth Forshee wrote: > On Tue, Feb 07, 2017 at 08:52:30AM +0100, Johannes Berg wrote: >> On Mon, 2017-02-06 at 14:50 -0600, Seth Forshee wrote: >>> + (5150 - 5250 @ 80), (23), AUTO-BW >> >> For 20 MHz this is right, since the document says: >> >> The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10 B, >> dBm, whichever power is less. B is the 99% emission bandwidth in >> megahertz. The e.i.r.p. spectral density shall not exceed 10 dBm in >> any 1.0 MHz band. >> >> However, for < 20 MHz, like 5 or 10, which we in theory do support, you >> can't use that much due to the spectral density requirement. It seems >> possible that that's where the 17 dBm came from, since 10 + 10 log10(5) >> is about 17. > > Yes, thanks. I had forgotten to consider bandwidths less than 20 MHz. > > Seth > > _______________________________________________ > wireless-regdb mailing list > wireless-regdb@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/wireless-regdb > According to .../include/net/cfg80211.h >static inline int >ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) >{ > switch (chandef->width) { > case NL80211_CHAN_WIDTH_5: > return min(chandef->chan->max_reg_power - 6, > chandef->chan->max_power); > case NL80211_CHAN_WIDTH_10: > return min(chandef->chan->max_reg_power - 3, > chandef->chan->max_power); > default: > break; > } > return chandef->chan->max_power; >} This looks to me like it already handles the reduction of power according to bandwidth. BR Matthias _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-13 13:58 ` Matthias May @ 2017-03-01 15:07 ` Seth Forshee 2017-03-01 15:35 ` Johannes Berg 0 siblings, 1 reply; 11+ messages in thread From: Seth Forshee @ 2017-03-01 15:07 UTC (permalink / raw) To: Matthias May, Johannes Berg; +Cc: cory novak, wireless-regdb There were some replies to this, but I just noticed that the mailing list somehow got dropped. Bringing the discussion back to the list. On Mon, Feb 13, 2017 at 02:58:28PM +0100, Matthias May wrote: > On 07/02/17 15:04, Seth Forshee wrote: > > On Tue, Feb 07, 2017 at 08:52:30AM +0100, Johannes Berg wrote: > >> On Mon, 2017-02-06 at 14:50 -0600, Seth Forshee wrote: > >>> + (5150 - 5250 @ 80), (23), AUTO-BW > >> > >> For 20 MHz this is right, since the document says: > >> > >> The maximum e.i.r.p. shall not exceed 200 mW or 10 + 10 log10 B, > >> dBm, whichever power is less. B is the 99% emission bandwidth in > >> megahertz. The e.i.r.p. spectral density shall not exceed 10 dBm in > >> any 1.0 MHz band. > >> > >> However, for < 20 MHz, like 5 or 10, which we in theory do support, you > >> can't use that much due to the spectral density requirement. It seems > >> possible that that's where the 17 dBm came from, since 10 + 10 log10(5) > >> is about 17. > > > > Yes, thanks. I had forgotten to consider bandwidths less than 20 MHz. > > > > Seth > > > > _______________________________________________ > > wireless-regdb mailing list > > wireless-regdb@lists.infradead.org > > http://lists.infradead.org/mailman/listinfo/wireless-regdb > > > > According to .../include/net/cfg80211.h > > >static inline int > >ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) > >{ > > switch (chandef->width) { > > case NL80211_CHAN_WIDTH_5: > > return min(chandef->chan->max_reg_power - 6, > > chandef->chan->max_power); > > case NL80211_CHAN_WIDTH_10: > > return min(chandef->chan->max_reg_power - 3, > > chandef->chan->max_power); > > default: > > break; > > } > > return chandef->chan->max_power; > >} > > This looks to me like it already handles the reduction of power > according to bandwidth. Johannes, just wanted to confirm that based on this you no longer have any objection to the changes. Thanks, Seth _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-03-01 15:07 ` Seth Forshee @ 2017-03-01 15:35 ` Johannes Berg 0 siblings, 0 replies; 11+ messages in thread From: Johannes Berg @ 2017-03-01 15:35 UTC (permalink / raw) To: Seth Forshee, Matthias May; +Cc: cory novak, wireless-regdb > > > > > static inline int > > > ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) > > > { > > > switch (chandef->width) { > > > case NL80211_CHAN_WIDTH_5: > > > return min(chandef->chan->max_reg_power - 6, > > > chandef->chan->max_power); > > > case NL80211_CHAN_WIDTH_10: > > > return min(chandef->chan->max_reg_power - 3, > > > chandef->chan->max_power); > > > default: > > > break; > > > } > > > return chandef->chan->max_power; > > > } > > > > This looks to me like it already handles the reduction of power > > according to bandwidth. > > Johannes, just wanted to confirm that based on this you no longer > have any objection to the changes. Yep, looks fine. johannes _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada 2017-02-06 20:50 ` [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada Seth Forshee 2017-02-07 7:52 ` Johannes Berg @ 2017-03-01 15:49 ` Seth Forshee 1 sibling, 0 replies; 11+ messages in thread From: Seth Forshee @ 2017-03-01 15:49 UTC (permalink / raw) To: wireless-regdb; +Cc: cory novak On Mon, Feb 06, 2017 at 02:50:34PM -0600, Seth Forshee wrote: > Based on the information from [1] the power limit for 5150-5250 > MHz can be increased to 23 dBm. Also update some rules to match > exact frequency ranges given in that document. > > [1] http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10971.html > > Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Applied. _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb ^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2017-03-01 15:50 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <CAPw1JcdLDkW9xEUfh-764kuC643DAJ+qWNf4RxmoyUXbpc-D5w@mail.gmail.com>
2017-02-06 19:12 ` [wireless-regdb] Fwd: possible mismatch Canadian regulatory info cory novak
2017-02-06 19:39 ` Seth Forshee
2017-02-06 19:44 ` cory novak
2017-02-06 20:50 ` [wireless-regdb] [RFC] wireless-regdb: Update 5 GHz rules for Canada Seth Forshee
2017-02-07 7:52 ` Johannes Berg
2017-02-07 14:04 ` Seth Forshee
2017-02-07 14:15 ` Johannes Berg
2017-02-13 13:58 ` Matthias May
2017-03-01 15:07 ` Seth Forshee
2017-03-01 15:35 ` Johannes Berg
2017-03-01 15:49 ` Seth Forshee
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.