From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:In-Reply-To:MIME-Version: References:Message-ID:Cc:To:From:Date:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1EkFN7axgRoKFXgT7jsut3CQ2B2r3Zh3VOev2+fBxGg=; b=4Eb6JGGwbhHSBn KEvIgws6zcQPR8bWWnzX6t2QwLxi/ODSvNgtRROhol2nFCgnSf27ESweMNmmEIPHomL9tV8E9zdaM YOFOnAfZJ8AYmQXeDuzUrIFFwok7YOyBvclTIR0Xlc8Ie9AmXy8uM41V8hSr7PVKDNU+DjdWKYs8M hQN0gxgwUZVWmP1GYqZDB46IU5g5VWSoq+EUXXZaTIRJtWwFoB6OUqwtlalP/zAi756HjB7eD8E+2 Mx9GFFhjHv/Mqdm4OmD2SgGGR/5sdB6Xyu6Db0QP20Ok5oPRqe4pW+Y97qQnLU+IFG1TfEIX0Hpsa s7pUv48DtVu59ncF+TZQ==; Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1puDIp-004o6l-0d for wireless-regdb@lists.infradead.org; Wed, 03 May 2023 14:17:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683123473; bh=Ia4aVYSR3IpxHBIynNQUaL9OR8xcm1S23bWPFZYWR2o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=pQLYvcMNQRLfLIX8TGdpGojgrBkD5azMsEra7Q6o1/mDodIAcmaS9tuLG8TOmfZzm XDC8yoP2SwShmDmy3i5FS7fkWsauL/jViIwMPqLDU4h8AvamZznDi9wpnxjWSYHfb8 bLHQ5tcN42WivOw0zxB79VGZorTAjxmAlLY+EJlVQ7BAHpSCCqvKZiRAI1ABm7lizv uwE7xfV44Wv0OiVGHcmvNXgqIvuGwtMfeT+8Sydyztj09pf6/j/yWAWSC7D3Nu39BO 1B7bDpePsXtgJk1zuA4O0fZ9g1hIqnEKV6viLUp90P0zPr8I8mVvtg42NfzjcqGhyS T1ZWVD1mfulJA== Date: Wed, 3 May 2023 09:17:52 -0500 From: Seth Forshee Message-ID: References: <6r700jK10O2cquA_KXGtCw4lJFqxCnyvoY_1qcTfCcY-v0ncai7qKGIP4jAGBWeK2A8PoGKGtDDMxWhNP4S2oleHRvAEINXQ2BnP1aUM6KI=@proton.me> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Subject: Re: [wireless-regdb] wireless-regdb: Regulatory rules for Hong Kong (HK) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: "wireless-regdb" Errors-To: wireless-regdb-bounces+johannes=sipsolutions.net@lists.infradead.org Content-Transfer-Encoding: 8bit To: "tavio.wong" Cc: "wireless-regdb@lists.infradead.org" List-ID: On Sun, Apr 16, 2023 at 04:14:19PM +0000, tavio.wong wrote: > > On Sunday, April 16th, 2023 at 8:00 AM, Seth Forshee wrote: > > On Wed, Mar 22, 2023 at 03:14:41PM +0000, tavio.wong wrote: > > > > > Thanks for the feedback. > > > > > > I have adjusted the rules as follows based on your suggestions and further research on FCC rules: > > > > > > country HK: DFS-ETSI > > > (2400 - 2483.5 @ 40), (30) > > > (5150 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR > > > (5250 - 5350 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR > > > (5470 - 5725 @ 160), (24), DFS > > > (5725 - 5850 @ 80), (30) > > > > > > 1. The ranges have been adjusted to align with HK regulations. > > > > > > 2. For 2400-2483.5 MHz, max power is set to 1 W (30 dBm) based on [1] 47 CFR 15.247(b)(3). > > > > > > 3. For 5470-5725 MHz, max power is set to 250 mW (24 dBm) based on [2] 47 CFR 15.407(a)(2). > > > > > > 4. For 5725-5850 MHz, max power is set to 1 W (30 dBm) based on [3] 47 CFR 15.407(a)(3)(i). > > > > > > 5. 5725-5730 MHz (Channel 144) is already covered by the last range (5725-5850 MHz) so no changes are necessary. > > > > > > I have also cross-checked the limits to make sure they don't exceed those in the rules for US. The only difference in limits is in 5250-5350 MHz where HK regulations further restrict it to 200 mW (23 dBm). > > > > > > Since explicit power limits are given I think we should be able to use > > those. The reference to the US rules probably refers to other > > requirements. So for 3 we can use 27 dBm and for 4 we can use 36 dBm. > > OK. > > > > > > One last suggestion: I noticed 6 GHz band is allowed for outdoor use at a max of 14 dBm (Section 3.2 of [4]) though it's only for licensed devices. Can it also be added to the rules as below? > > > (5925 - 6425 @ 160), (14) > > > > > > Yes, we could do it this way, or use the 24 dBm limit with NO-OUTDOOR. > > I guess I will leave it this way for now so that the band is usable in both indoor and outdoor settings. > > Based on the latest discussion, I have updated the rules as below: > > # Source: > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1039.pdf (2.4 GHz and 5 GHz) > # https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1081.pdf (6 GHz) > country HK: DFS-ETSI > (2400 - 2483.5 @ 40), (36) > (5150 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR > (5250 - 5350 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR > (5470 - 5725 @ 160), (27), DFS > (5725 - 5850 @ 80), (36) > (5925 - 6425 @ 160), (14) > > If the rules look fine to you, I will try to submit a patch for this change. Sorry, just noticed that I hadn't responded. That looks fine. I'd suggest also slightly tweaking the bands like this: (5470 - 5730 @ 160), (27), DFS (5730 - 5850 @ 80), (36) We do this for some other countries so that channel 144 is usable, and since 5470-5725 is more restrictive than 5725-5850 it doesn't pose any problems. Please go ahead and submit a patch! Thanks, Seth _______________________________________________ wireless-regdb mailing list wireless-regdb@lists.infradead.org http://lists.infradead.org/mailman/listinfo/wireless-regdb