[PATCH v2 0/5] wireless-regdb: Update TW and US rules to latest regulations

[PATCH v2 0/5] wireless-regdb: Update TW and US rules to latest regulations

[Chen-Yu Tsai]

Hi Seth,

I've split up my original patch into 4, each addressing a small part of
the original. I've also added a patch to update the US 5150 ~ 5250 MHz
rule.

Patch 1 updates the 5470 ~ 5725 MHz rules for Taiwan, specifically
the opening up of 5600 ~ 5650 MHz spectrum previously allocated to
weather radars. The transmission power limit is also corrected to
match the regulations.

Patch 2 changes the boundary frequencies for each rule for Taiwan to
match the frequency allocation table. The "regulation" database shouldn't
care about artificial channel boundaries.

Patch 3 adds the previously unusable 5150 ~ 5250 MHz band for Taiwan.

Patch 4 updates the transmission power limits for 5150 ~ 5250 MHz for
the US.

Patch 5 updates the transmission power limits for Taiwan, per the NCC's
official reply. This patch may be slightly controversial, as there is
no official English document. Either someone will have to independently
verify this, or translate the Chinese document.


Regards
ChenYu

Chen-Yu Tsai (5):
  wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan
    (TW)
  wireless-regdb: Update regulatory rule boundary frequencies for Taiwan
    (TW)
  wireless-regdb: Add U-NII-1 (5150 ~ 5250 MHz) band for Taiwan (TW)
  wireless-regdb: Update 5GHz rules for US
  wireless-regdb: Update 5 GHz rules for Taiwan (TW) to follow US

 db.txt | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

-- 
2.1.4

[PATCH v2 1/5] wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan (TW)

[Chen-Yu Tsai]

Taiwan's Ministry of Transportation and Communications revised its
frequency allocation rules [1] on 2014/11/17, allowing usage of 5600 ~
5650 MHz, previously allocated to weather radars, to U-NII applications
with DFS support.

Also, the technical regulations [2] show that for 5470 ~ 5725 MHz U-NII
applications, the peak transmit power shall not exceed the lesser of
250 mW (slightly less than 24 dBm) or 11 dBm + 10log B, where B is the
26dB emission bandwidth in MHz. This is slightly more than 23 dBm for
20 MHz channels.

This patch updates both. Also add links to the two documents into the
database.

[1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
[2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 db.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/db.txt b/db.txt
index 982db34..5114557 100644
--- a/db.txt
+++ b/db.txt
@@ -1118,11 +1118,17 @@ country TT: DFS-FCC
 	(5490 - 5730 @ 160), (24), DFS
 	(5735 - 5835 @ 80), (30)
 
+# Source:
+# Table of Frequency Allocations of Republic of China (Taiwan) / Nov 2014:
+#   http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc& \
+#      filedisplay=Table+of+radio+frequency+allocation.doc
+# LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
+#   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
+#   (section 3.10.1, 4.7)
 country TW: DFS-JP
 	(2402 - 2472 @ 40), (30)
 	(5270 - 5330 @ 40), (17), DFS
-	(5490 - 5590 @ 80), (30), DFS
-	(5650 - 5710 @ 40), (30), DFS
+	(5470 - 5725 @ 160), (23), DFS
 	(5735 - 5835 @ 80), (30)
  
 country TZ:
-- 
2.1.4

Re: [PATCH v2 1/5] wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan (TW)

[Seth Forshee]

On Thu, Jul 23, 2015 at 11:32:56AM +0800, Chen-Yu Tsai wrote:
> Taiwan's Ministry of Transportation and Communications revised its
> frequency allocation rules [1] on 2014/11/17, allowing usage of 5600 ~
> 5650 MHz, previously allocated to weather radars, to U-NII applications
> with DFS support.
> 
> Also, the technical regulations [2] show that for 5470 ~ 5725 MHz U-NII
> applications, the peak transmit power shall not exceed the lesser of
> 250 mW (slightly less than 24 dBm) or 11 dBm + 10log B, where B is the
> 26dB emission bandwidth in MHz. This is slightly more than 23 dBm for
> 20 MHz channels.
> 
> This patch updates both. Also add links to the two documents into the
> database.
> 
> [1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
> [2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

Sorry for the slow response to these patches.

> ---
>  db.txt | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/db.txt b/db.txt
> index 982db34..5114557 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1118,11 +1118,17 @@ country TT: DFS-FCC
>  	(5490 - 5730 @ 160), (24), DFS
>  	(5735 - 5835 @ 80), (30)
>  
> +# Source:
> +# Table of Frequency Allocations of Republic of China (Taiwan) / Nov 2014:
> +#   http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc& \
> +#      filedisplay=Table+of+radio+frequency+allocation.doc
> +# LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
> +#   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
> +#   (section 3.10.1, 4.7)
>  country TW: DFS-JP
>  	(2402 - 2472 @ 40), (30)
>  	(5270 - 5330 @ 40), (17), DFS
> -	(5490 - 5590 @ 80), (30), DFS
> -	(5650 - 5710 @ 40), (30), DFS
> +	(5470 - 5725 @ 160), (23), DFS

Based on [2], it looks like this range requires TPC, in which case the
power limit should be dropped by 3 dB on account of our not supporting
TPC.

Re: [PATCH v2 1/5] wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan (TW)

[Chen-Yu Tsai]

On Tue, Aug 4, 2015 at 2:27 AM, Seth Forshee <seth.forshee@canonical.com> wrote:
> On Thu, Jul 23, 2015 at 11:32:56AM +0800, Chen-Yu Tsai wrote:
>> Taiwan's Ministry of Transportation and Communications revised its
>> frequency allocation rules [1] on 2014/11/17, allowing usage of 5600 ~
>> 5650 MHz, previously allocated to weather radars, to U-NII applications
>> with DFS support.
>>
>> Also, the technical regulations [2] show that for 5470 ~ 5725 MHz U-NII
>> applications, the peak transmit power shall not exceed the lesser of
>> 250 mW (slightly less than 24 dBm) or 11 dBm + 10log B, where B is the
>> 26dB emission bandwidth in MHz. This is slightly more than 23 dBm for
>> 20 MHz channels.
>>
>> This patch updates both. Also add links to the two documents into the
>> database.
>>
>> [1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
>> [2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
>>
>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
>
> Sorry for the slow response to these patches.
>
>> ---
>>  db.txt | 10 ++++++++--
>>  1 file changed, 8 insertions(+), 2 deletions(-)
>>
>> diff --git a/db.txt b/db.txt
>> index 982db34..5114557 100644
>> --- a/db.txt
>> +++ b/db.txt
>> @@ -1118,11 +1118,17 @@ country TT: DFS-FCC
>>       (5490 - 5730 @ 160), (24), DFS
>>       (5735 - 5835 @ 80), (30)
>>
>> +# Source:
>> +# Table of Frequency Allocations of Republic of China (Taiwan) / Nov 2014:
>> +#   http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc& \
>> +#      filedisplay=Table+of+radio+frequency+allocation.doc
>> +# LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
>> +#   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
>> +#   (section 3.10.1, 4.7)
>>  country TW: DFS-JP
>>       (2402 - 2472 @ 40), (30)
>>       (5270 - 5330 @ 40), (17), DFS
>> -     (5490 - 5590 @ 80), (30), DFS
>> -     (5650 - 5710 @ 40), (30), DFS
>> +     (5470 - 5725 @ 160), (23), DFS
>
> Based on [2], it looks like this range requires TPC, in which case the
> power limit should be dropped by 3 dB on account of our not supporting
> TPC.

Will fix.

Is there any plan to support multiple rules per band? Such as different
power limits with vs without TPC, or something like DFS vs indoor only?


ChenYu

Re: [PATCH v2 1/5] wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan (TW)

[Chen-Yu Tsai]

On Tue, Aug 4, 2015 at 9:26 AM, Chen-Yu Tsai <wens@csie.org> wrote:
> On Tue, Aug 4, 2015 at 2:27 AM, Seth Forshee <seth.forshee@canonical.com> wrote:
>> On Thu, Jul 23, 2015 at 11:32:56AM +0800, Chen-Yu Tsai wrote:
>>> Taiwan's Ministry of Transportation and Communications revised its
>>> frequency allocation rules [1] on 2014/11/17, allowing usage of 5600 ~
>>> 5650 MHz, previously allocated to weather radars, to U-NII applications
>>> with DFS support.
>>>
>>> Also, the technical regulations [2] show that for 5470 ~ 5725 MHz U-NII
>>> applications, the peak transmit power shall not exceed the lesser of
>>> 250 mW (slightly less than 24 dBm) or 11 dBm + 10log B, where B is the
>>> 26dB emission bandwidth in MHz. This is slightly more than 23 dBm for
>>> 20 MHz channels.
>>>
>>> This patch updates both. Also add links to the two documents into the
>>> database.
>>>
>>> [1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
>>> [2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
>>>
>>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
>>
>> Sorry for the slow response to these patches.
>>
>>> ---
>>>  db.txt | 10 ++++++++--
>>>  1 file changed, 8 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/db.txt b/db.txt
>>> index 982db34..5114557 100644
>>> --- a/db.txt
>>> +++ b/db.txt
>>> @@ -1118,11 +1118,17 @@ country TT: DFS-FCC
>>>       (5490 - 5730 @ 160), (24), DFS
>>>       (5735 - 5835 @ 80), (30)
>>>
>>> +# Source:
>>> +# Table of Frequency Allocations of Republic of China (Taiwan) / Nov 2014:
>>> +#   http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc& \
>>> +#      filedisplay=Table+of+radio+frequency+allocation.doc
>>> +# LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
>>> +#   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
>>> +#   (section 3.10.1, 4.7)
>>>  country TW: DFS-JP
>>>       (2402 - 2472 @ 40), (30)
>>>       (5270 - 5330 @ 40), (17), DFS
>>> -     (5490 - 5590 @ 80), (30), DFS
>>> -     (5650 - 5710 @ 40), (30), DFS
>>> +     (5470 - 5725 @ 160), (23), DFS
>>
>> Based on [2], it looks like this range requires TPC, in which case the
>> power limit should be dropped by 3 dB on account of our not supporting
>> TPC.
>
> Will fix.
>
> Is there any plan to support multiple rules per band? Such as different
> power limits with vs without TPC, or something like DFS vs indoor only?

BTW, this band has the exact same restrictions as the US, as specified
by the FCC. The relevant rules were added in

    f894543 wireless-regdb: Add back regulatory rules for US

and expanded to cover the whole band in

    3c61549 wireless-regdb: Update 5GHz rules for US

These show the power limit at 23 dBm as well. Any comments on this?


ChenYu

Re: [PATCH v2 1/5] wireless-regdb: Update U-NII-2c (5470 ~ 5725 MHz) rules for Taiwan (TW)

[Seth Forshee]

On Tue, Aug 04, 2015 at 09:55:06AM +0800, Chen-Yu Tsai wrote:
> On Tue, Aug 4, 2015 at 9:26 AM, Chen-Yu Tsai <wens@csie.org> wrote:
> > On Tue, Aug 4, 2015 at 2:27 AM, Seth Forshee <seth.forshee@canonical.com> wrote:
> >> On Thu, Jul 23, 2015 at 11:32:56AM +0800, Chen-Yu Tsai wrote:
> >>> Taiwan's Ministry of Transportation and Communications revised its
> >>> frequency allocation rules [1] on 2014/11/17, allowing usage of 5600 ~
> >>> 5650 MHz, previously allocated to weather radars, to U-NII applications
> >>> with DFS support.
> >>>
> >>> Also, the technical regulations [2] show that for 5470 ~ 5725 MHz U-NII
> >>> applications, the peak transmit power shall not exceed the lesser of
> >>> 250 mW (slightly less than 24 dBm) or 11 dBm + 10log B, where B is the
> >>> 26dB emission bandwidth in MHz. This is slightly more than 23 dBm for
> >>> 20 MHz channels.
> >>>
> >>> This patch updates both. Also add links to the two documents into the
> >>> database.
> >>>
> >>> [1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
> >>> [2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
> >>>
> >>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> >>
> >> Sorry for the slow response to these patches.
> >>
> >>> ---
> >>>  db.txt | 10 ++++++++--
> >>>  1 file changed, 8 insertions(+), 2 deletions(-)
> >>>
> >>> diff --git a/db.txt b/db.txt
> >>> index 982db34..5114557 100644
> >>> --- a/db.txt
> >>> +++ b/db.txt
> >>> @@ -1118,11 +1118,17 @@ country TT: DFS-FCC
> >>>       (5490 - 5730 @ 160), (24), DFS
> >>>       (5735 - 5835 @ 80), (30)
> >>>
> >>> +# Source:
> >>> +# Table of Frequency Allocations of Republic of China (Taiwan) / Nov 2014:
> >>> +#   http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc& \
> >>> +#      filedisplay=Table+of+radio+frequency+allocation.doc
> >>> +# LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
> >>> +#   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
> >>> +#   (section 3.10.1, 4.7)
> >>>  country TW: DFS-JP
> >>>       (2402 - 2472 @ 40), (30)
> >>>       (5270 - 5330 @ 40), (17), DFS
> >>> -     (5490 - 5590 @ 80), (30), DFS
> >>> -     (5650 - 5710 @ 40), (30), DFS
> >>> +     (5470 - 5725 @ 160), (23), DFS
> >>
> >> Based on [2], it looks like this range requires TPC, in which case the
> >> power limit should be dropped by 3 dB on account of our not supporting
> >> TPC.
> >
> > Will fix.
> >
> > Is there any plan to support multiple rules per band? Such as different
> > power limits with vs without TPC, or something like DFS vs indoor only?

Not that I know of. Currently the binary database format is a constraint
on doing anything like that.

> BTW, this band has the exact same restrictions as the US, as specified
> by the FCC. The relevant rules were added in
> 
>     f894543 wireless-regdb: Add back regulatory rules for US
> 
> and expanded to cover the whole band in
> 
>     3c61549 wireless-regdb: Update 5GHz rules for US
> 
> These show the power limit at 23 dBm as well. Any comments on this?

Good question. Afaict this probably originates with commit 31dc1c5e
which defines the limit for 5250-5330 MHz in the US, then using the same
limit for the 5490-5730 MHz rule seemed logical. The 5250-5330 MHz rule
came from QCA then. Adding Jouni to the Cc to see if he can help clarify
how they arrived at 23 dBm.

Hmm, I see now that 15.407(h)(1) says that TPC is not required for
systems with an EIRP of less than 500 mW. In that case I guess maybe we
don't need to drop the power limit by 3 dB, so in light of that 23 dBm
does make sense. The documents you linked to say the same, seemingly
word-for-word, so in all likelihood 23 dBm is actually okay.

Thanks,
Seth

[PATCH v2 2/5] wireless-regdb: Update regulatory rule boundary frequencies for Taiwan (TW)

[Chen-Yu Tsai]

Taiwan's frequency allocation rules [1] list the following frequency
ranges available for low power RF devices:

  - 2400 ~ 2483.5 MHz
  - 5150 ~ 5250 MHz
  - 5250 ~ 5350 MHz
  - 5470 ~ 5725 MHz
  - 5725 ~ 5850 MHz

Update the rules to match. Since 5250 ~ 5350 MHz is wide enough for
VHT80, and there are no regulations against it, enable it as well.

[1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
[2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 db.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/db.txt b/db.txt
index 5114557..8a05c57 100644
--- a/db.txt
+++ b/db.txt
@@ -1126,10 +1126,10 @@ country TT: DFS-FCC
 #   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
 #   (section 3.10.1, 4.7)
 country TW: DFS-JP
-	(2402 - 2472 @ 40), (30)
-	(5270 - 5330 @ 40), (17), DFS
+	(2400 - 2483.5 @ 40), (30)
+	(5250 - 5350 @ 80), (17), DFS
 	(5470 - 5725 @ 160), (23), DFS
-	(5735 - 5835 @ 80), (30)
+	(5725 - 5850 @ 80), (30)
  
 country TZ:
 	(2402 - 2482 @ 40), (20)
-- 
2.1.4

[PATCH v2 3/5] wireless-regdb: Add U-NII-1 (5150 ~ 5250 MHz) band for Taiwan (TW)

[Chen-Yu Tsai]

Taiwan's Ministry of Transportation and Communications revised its
frequency allocation rules [1] on 2014/11/17, opening up 5150 ~ 5250
MHz to U-NII applications.

Taiwan's regulatory body, NCC, officially stated [3][4] that until
the technical regulatory standard [2] are updated to cover this part
of the spectrum, FCC rules (part 15E, 15.407, effective 2014/06/02)
shall serve in its place.

Also add AUTO-BW to this and the next (5250 ~ 5350 MHz) rule, so the
system can actually use VHT160 channels spanning these two rules.

[1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
[2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
[3] http://www.rheintech.com/our-blog/item/585-taiwan-ncc-opens-5150-5250-mhz-for-wireless-devices
[4] Proposal #10312260 (p.6, Chinese),
    http://www.etc.org.tw/_library/K00/%E9%9B%BB%E4%BF%A1%E7%B5%82%E7%AB%AF%E8%A8%AD%E5%82%99%E5%AF%A9%E9%A9%97/1031223_nccqa56.pdf

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 db.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/db.txt b/db.txt
index 8a05c57..cadd52c 100644
--- a/db.txt
+++ b/db.txt
@@ -1127,7 +1127,8 @@ country TT: DFS-FCC
 #   (section 3.10.1, 4.7)
 country TW: DFS-JP
 	(2400 - 2483.5 @ 40), (30)
-	(5250 - 5350 @ 80), (17), DFS
+	(5150 - 5250 @ 80), (30), AUTO-BW
+	(5250 - 5350 @ 80), (17), DFS, AUTO-BW
 	(5470 - 5725 @ 160), (23), DFS
 	(5725 - 5850 @ 80), (30)
  
-- 
2.1.4

Re: [PATCH v2 3/5] wireless-regdb: Add U-NII-1 (5150 ~ 5250 MHz) band for Taiwan (TW)

[Seth Forshee]

On Thu, Jul 23, 2015 at 11:32:58AM +0800, Chen-Yu Tsai wrote:
> Taiwan's Ministry of Transportation and Communications revised its
> frequency allocation rules [1] on 2014/11/17, opening up 5150 ~ 5250
> MHz to U-NII applications.
> 
> Taiwan's regulatory body, NCC, officially stated [3][4] that until
> the technical regulatory standard [2] are updated to cover this part
> of the spectrum, FCC rules (part 15E, 15.407, effective 2014/06/02)
> shall serve in its place.
> 
> Also add AUTO-BW to this and the next (5250 ~ 5350 MHz) rule, so the
> system can actually use VHT160 channels spanning these two rules.
> 
> [1] http://www.motc.gov.tw/websitedowndoc?file=post/201411171137330.doc&filedisplay=Table+of+radio+frequency+allocation.doc
> [2] http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
> [3] http://www.rheintech.com/our-blog/item/585-taiwan-ncc-opens-5150-5250-mhz-for-wireless-devices
> [4] Proposal #10312260 (p.6, Chinese),
>     http://www.etc.org.tw/_library/K00/%E9%9B%BB%E4%BF%A1%E7%B5%82%E7%AB%AF%E8%A8%AD%E5%82%99%E5%AF%A9%E9%A9%97/1031223_nccqa56.pdf
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>  db.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/db.txt b/db.txt
> index 8a05c57..cadd52c 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1127,7 +1127,8 @@ country TT: DFS-FCC
>  #   (section 3.10.1, 4.7)
>  country TW: DFS-JP
>  	(2400 - 2483.5 @ 40), (30)
> -	(5250 - 5350 @ 80), (17), DFS
> +	(5150 - 5250 @ 80), (30), AUTO-BW
> +	(5250 - 5350 @ 80), (17), DFS, AUTO-BW

It would really make more sense for an update to the US power limit in
5150-5250 to precede this one if you're using the US rules as the
justification for the power limit here. Going through these patches in
order, I was initially confused here why it didn't match the US rule
until I looked at the next patch.

But, as I mentioned in the reply to that patch, I think the change to
the US power limit is incorrect, thus this one would be incorrect as
well.

[PATCH v2 4/5] wireless-regdb: Update 5GHz rules for US

[Chen-Yu Tsai]

The FCC increased the maximum conducted transmission power for the
U-NII-1 (5150 ~ 5250 MHz) band to 30 dBm or 1 W for master devices
and 24 dBm or 250 mW for mobile/portable devices.

Effective 6/2/2014.

See FCC KDB 905462 D06.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 db.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/db.txt b/db.txt
index cadd52c..29ba4b6 100644
--- a/db.txt
+++ b/db.txt
@@ -1160,7 +1160,7 @@ country UG: DFS-FCC
 
 country US: DFS-FCC
 	(2402 - 2472 @ 40), (30)
-	(5170 - 5250 @ 80), (17), AUTO-BW
+	(5170 - 5250 @ 80), (30), AUTO-BW
 	(5250 - 5330 @ 80), (23), DFS, AUTO-BW
 	(5490 - 5730 @ 160), (23), DFS
 	(5735 - 5835 @ 80), (30)
-- 
2.1.4

Re: [PATCH v2 4/5] wireless-regdb: Update 5GHz rules for US

[Seth Forshee]

On Thu, Jul 23, 2015 at 11:32:59AM +0800, Chen-Yu Tsai wrote:
> The FCC increased the maximum conducted transmission power for the
> U-NII-1 (5150 ~ 5250 MHz) band to 30 dBm or 1 W for master devices
> and 24 dBm or 250 mW for mobile/portable devices.
> 
> Effective 6/2/2014.
> 
> See FCC KDB 905462 D06.
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>  db.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/db.txt b/db.txt
> index cadd52c..29ba4b6 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1160,7 +1160,7 @@ country UG: DFS-FCC
>  
>  country US: DFS-FCC
>  	(2402 - 2472 @ 40), (30)
> -	(5170 - 5250 @ 80), (17), AUTO-BW
> +	(5170 - 5250 @ 80), (30), AUTO-BW

The 30 dB limit is for devices in master mode, for clients the limit
seems to be 250 mW (about 24 dB). Given the TPC requirement for U-NII
devices the most it could be bumped up to is 21 dB, unless there's some
other reason I don't know about to keep it at 17 dB.

Re: [PATCH v2 4/5] wireless-regdb: Update 5GHz rules for US

[Seth Forshee]

On Mon, Aug 03, 2015 at 01:34:22PM -0500, Seth Forshee wrote:
> On Thu, Jul 23, 2015 at 11:32:59AM +0800, Chen-Yu Tsai wrote:
> > The FCC increased the maximum conducted transmission power for the
> > U-NII-1 (5150 ~ 5250 MHz) band to 30 dBm or 1 W for master devices
> > and 24 dBm or 250 mW for mobile/portable devices.
> > 
> > Effective 6/2/2014.
> > 
> > See FCC KDB 905462 D06.
> > 
> > Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> > ---
> >  db.txt | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/db.txt b/db.txt
> > index cadd52c..29ba4b6 100644
> > --- a/db.txt
> > +++ b/db.txt
> > @@ -1160,7 +1160,7 @@ country UG: DFS-FCC
> >  
> >  country US: DFS-FCC
> >  	(2402 - 2472 @ 40), (30)
> > -	(5170 - 5250 @ 80), (17), AUTO-BW
> > +	(5170 - 5250 @ 80), (30), AUTO-BW
> 
> The 30 dB limit is for devices in master mode, for clients the limit
> seems to be 250 mW (about 24 dB). Given the TPC requirement for U-NII
> devices the most it could be bumped up to is 21 dB, unless there's some
> other reason I don't know about to keep it at 17 dB.

Oops, looks like I was mistaken, this range does not require TPC. 30 dBm
still seems to be incorrect however.

Re: [PATCH v2 4/5] wireless-regdb: Update 5GHz rules for US

[Chen-Yu Tsai]

On Tue, Aug 4, 2015 at 2:34 AM, Seth Forshee <seth.forshee@canonical.com> wrote:
> On Thu, Jul 23, 2015 at 11:32:59AM +0800, Chen-Yu Tsai wrote:
>> The FCC increased the maximum conducted transmission power for the
>> U-NII-1 (5150 ~ 5250 MHz) band to 30 dBm or 1 W for master devices
>> and 24 dBm or 250 mW for mobile/portable devices.
>>
>> Effective 6/2/2014.
>>
>> See FCC KDB 905462 D06.
>>
>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
>> ---
>>  db.txt | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/db.txt b/db.txt
>> index cadd52c..29ba4b6 100644
>> --- a/db.txt
>> +++ b/db.txt
>> @@ -1160,7 +1160,7 @@ country UG: DFS-FCC
>>
>>  country US: DFS-FCC
>>       (2402 - 2472 @ 40), (30)
>> -     (5170 - 5250 @ 80), (17), AUTO-BW
>> +     (5170 - 5250 @ 80), (30), AUTO-BW
>
> The 30 dB limit is for devices in master mode, for clients the limit
> seems to be 250 mW (about 24 dB). Given the TPC requirement for U-NII
> devices the most it could be bumped up to is 21 dB, unless there's some
> other reason I don't know about to keep it at 17 dB.

I suppose we have no way to differentiate between master mode and clients?
I'll drop it down to 24 dBm and add a comment above it.

As for 17 dB, that was the original limit prior to the bump, as seen in
the FCC KDB attachment "905462 D05 802.11 Channel Plans Old Rules v01".

ChenYu

Re: [PATCH v2 4/5] wireless-regdb: Update 5GHz rules for US

[Seth Forshee]

On Tue, Aug 04, 2015 at 09:31:58AM +0800, Chen-Yu Tsai wrote:
> On Tue, Aug 4, 2015 at 2:34 AM, Seth Forshee <seth.forshee@canonical.com> wrote:
> > On Thu, Jul 23, 2015 at 11:32:59AM +0800, Chen-Yu Tsai wrote:
> >> The FCC increased the maximum conducted transmission power for the
> >> U-NII-1 (5150 ~ 5250 MHz) band to 30 dBm or 1 W for master devices
> >> and 24 dBm or 250 mW for mobile/portable devices.
> >>
> >> Effective 6/2/2014.
> >>
> >> See FCC KDB 905462 D06.
> >>
> >> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> >> ---
> >>  db.txt | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/db.txt b/db.txt
> >> index cadd52c..29ba4b6 100644
> >> --- a/db.txt
> >> +++ b/db.txt
> >> @@ -1160,7 +1160,7 @@ country UG: DFS-FCC
> >>
> >>  country US: DFS-FCC
> >>       (2402 - 2472 @ 40), (30)
> >> -     (5170 - 5250 @ 80), (17), AUTO-BW
> >> +     (5170 - 5250 @ 80), (30), AUTO-BW
> >
> > The 30 dB limit is for devices in master mode, for clients the limit
> > seems to be 250 mW (about 24 dB). Given the TPC requirement for U-NII
> > devices the most it could be bumped up to is 21 dB, unless there's some
> > other reason I don't know about to keep it at 17 dB.
> 
> I suppose we have no way to differentiate between master mode and clients?
> I'll drop it down to 24 dBm and add a comment above it.

We don't have any way to specify differing rules for APs and clients
today.

Probably the limit should be 23 dBm instead, since 250 mW comes out to
just less than 24 dBm. Better to be conservative, and besides that is
consistent with other ranges which have a 250 mW limit.

> As for 17 dB, that was the original limit prior to the bump, as seen in
> the FCC KDB attachment "905462 D05 802.11 Channel Plans Old Rules v01".

Ah, okay.

Thanks,
Seth

[PATCH v2 5/5] wireless-regdb: Update 5 GHz rules for Taiwan (TW) to follow US

[Chen-Yu Tsai]

Following the amendment of FCC part 15E and U-NII regulations effective
2014/06/02, and the opening up of 5150 ~ 5250 MHz and 5600 ~ 5650 MHz
spectrum in Taiwan, vendors have asked whether Taiwan's regulations
would be updated to match the new FCC rules, when this would happen,
and what to do in the interim.

The NCC, Taiwan's regulatory body has officially replied that new
amendments are under way, and the goal is to match the FCC rules.
Until the amendments come through, vendors are free to test and
submit applications using the new FCC rules for transmission power
limits and DFS requirements, though unintended / unwanted emissions
must still conform to the current standard, LP0002. [1][2]

This has been confirmed via a phone call to the NCC.

[1] http://www.rheintech.com/our-blog/item/585-taiwan-ncc-opens-5150-5250-mhz-for-wireless-devices
[2] Proposal #10312260 (p.6, Chinese),
    http://www.etc.org.tw/_library/K00/%E9%9B%BB%E4%BF%A1%E7%B5%82%E7%AB%AF%E8%A8%AD%E5%82%99%E5%AF%A9%E9%A9%97/1031223_nccqa56.pdf

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 db.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/db.txt b/db.txt
index 29ba4b6..56fbba3 100644
--- a/db.txt
+++ b/db.txt
@@ -1125,10 +1125,10 @@ country TT: DFS-FCC
 # LP0002 Low-power Radio-frequency Devices Technical Regulations / 28 Jun 2011:
 #   http://www.ncc.gov.tw/english/show_file.aspx?table_name=news&file_sn=681
 #   (section 3.10.1, 4.7)
-country TW: DFS-JP
+country TW: DFS-FCC
 	(2400 - 2483.5 @ 40), (30)
 	(5150 - 5250 @ 80), (30), AUTO-BW
-	(5250 - 5350 @ 80), (17), DFS, AUTO-BW
+	(5250 - 5350 @ 80), (23), DFS, AUTO-BW
 	(5470 - 5725 @ 160), (23), DFS
 	(5725 - 5850 @ 80), (30)
  
-- 
2.1.4