On 2021-10-28 03:06, Seth Forshee wrote:
On Sun, Oct 24, 2021 at 08:38:21PM +0900, Sungbo Eo wrote:
This patch is based on MSIT Public Notification 2020-113 ("Unlicensed Radio
Equipment Established Without Notice"), officially announced on 2021-01-06.
The PSD must not exceed 2.5 mW/MHz if the frequency range includes all or
part of 5230-5250 MHz and the bandwidth is equal to or less than 40 MHz.
This leads to the following:
* 5230-5250 @ 20 -> 17 dBm
* 5210-5250 @ 40 -> 20 dBm
Here the power limits for 80/160 MHz bandwidth are also lowered to 17 dBm,
as it's not possible to set different power limits for different bandwidths
at the moment.
Extend the last 5 GHz frequency range to 5850 MHz.
WiFi 6E is now allowed with the following restrictions:
* Indoor: the full 1.2 GHz range, up to 160 MHz bandwidth and 250mW EIRP
* Outdoor: the lower 500 MHz range, up to 160 MHz bandwidth and 25mW EIRP
Here only the former entry is added.
And also update the regulatory source links.
Signed-off-by: Sungbo Eo <mans0n@xxxxxxxxxx>
---
v2:
* split 5150-5250 MHz band rule to accommodate the PSD limit
* remove AUTO-BW flag from 6 GHz band rule
---
db.txt | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/db.txt b/db.txt
index 6e8dbef..387ac93 100644
--- a/db.txt
+++ b/db.txt
@@ -862,15 +862,22 @@ country KP: DFS-JP
(5490 - 5630 @ 20), (30), DFS
(5735 - 5815 @ 20), (30)
+# Source:
+# https://www.law.go.kr/LSW//admRulLsInfoP.do?chrClsCd=&admRulSeq=2100000196972
+# https://www.law.go.kr/LSW//admRulLsInfoP.do?chrClsCd=&admRulSeq=2100000196973
+# https://www.law.go.kr/LSW//admRulLsInfoP.do?chrClsCd=&admRulSeq=2100000196974
country KR: DFS-JP
- # ref: https://www.rra.go.kr
(2400 - 2483.5 @ 40), (23)
- (5150 - 5250 @ 80), (23), AUTO-BW
+ (5150 - 5210 @ 40), (23), AUTO-BW
+ # max. PSD 2.5 mW/MHz in 5230-5250 MHz frequency range
+ (5210 - 5230 @ 20), (20), AUTO-BW
+ (5230 - 5250 @ 20), (17), AUTO-BW
Even with 5210-5230 split out like this, 5210-5250 @ 40 still gets
limited to 17 dBm by the 5230-5250 rule. So why do we need to split out
5210-5230 separate from 5150-5210?
I did some tests with regdb and I found out that the rule to be applied
depends on the main 20 MHz channel. With the rules above, if I select
channel 48 (5230-5250) and enable VHT40, then the TX power is set to 17
dBm. OTOH if I select channel 44 (5210–5230) and enable VHT40, then the
TX power is set to 20 dBm. I'm not sure whether my result is really
correct, though.
Regards,
Sungbo
Thanks,
Seth
(5250 - 5350 @ 80), (20), DFS, AUTO-BW
(5470 - 5725 @ 160), (20), DFS
- (5725 - 5835 @ 80), (23)
- # 60 GHz band channels 1-4,
- # ref: http://www.law.go.kr/%ED%96%89%EC%A0%95%EA%B7%9C%EC%B9%99/%EB%AC%B4%EC%84%A0%EC%84%A4%EB%B9%84%EA%B7%9C%EC%B9%99
+ (5725 - 5850 @ 80), (23)
+ # 6 GHz band
+ (5925 - 7125 @ 160), (24), NO-OUTDOOR
+ # 60 GHz band channels 1-4
(57000 - 66000 @ 2160), (43)
country KW: DFS-ETSI
--
2.33.1
