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From:   Sungbo Eo <mans0n@gorani.run>
To:     sforshee@kernel.org
Cc:     wireless-regdb@lists.infradead.org, linux-wireless@vger.kernel.org,
        Sungbo Eo <mans0n@gorani.run>
Subject: [PATCH] wireless-regdb: Update regulatory rules for South Korea (KR)
Date:   Thu, 30 Sep 2021 02:27:28 +0900
Message-Id: <20210929172728.7512-1-mans0n@gorani.run>
MIME-Version: 1.0
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This patch is based on MSIT Public Notification 2020-113 ("Unlicensed Radio
Equipment Established Without Notice"), officially announced on 2021-01-06.

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@gorani.run>
---
I have two questions.

The regulation has one more restriction:
  The TX power should not exceed 2.5 mW/MHz
  when the frequency range includes the whole or a part of 5230-5250 MHz
  and the bandwidth is equal to or less than 40 MHz.
That leads to the followings:
  5230-5250 @ 20 -> 17 dBm
  5210-5250 @ 40 -> 20 dBm
  5170-5250 @ 80 -> 23 dBm
Is it possible to add this rule without lowering the TX power for 80 MHz bandwidth?

And do we need AUTO-BW for 6E channels? I thought it is for merging adjacent frequency ranges.
---
 db.txt | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/db.txt b/db.txt
index 6e8dbef..31052cf 100644
--- a/db.txt
+++ b/db.txt
@@ -862,15 +862,20 @@ 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
 	(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, AUTO-BW
+	# 60 GHz band channels 1-4
 	(57000 - 66000 @ 2160), (43)
 
 country KW: DFS-ETSI
-- 
2.33.0