| Message ID | 20240624025623.6021-3-pkshih@realtek.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/4] wireless-regdb: Update regulatory info for Liechtenstein (LI) on 6GHz | expand |
On Mon, Jun 24, 2024 at 10:56 AM Ping-Ke Shih <pkshih@realtek.com> wrote: > > Communications of Authority of Kenya issued GUIDELINES ON THE USE OF > RADIOFREQUENCY SPECTRUM BY SHORT RANGE DEVICES on JUNE 2022 [1]. > The section 5.8. covers frequency bands and technical parameters for > non-specific short range applications and wireless access systems. > > - 2400-2483.5 MHz: 2W e.i.r.p. > - 5150-5350 MHz: 200mW; max e.i.r.p. density of 10mW/MHz > (ETSI: -6 dBm to be 17 dBm) > - 5470-5725 MHz: 250mW; Max mean e.i.r.p. of 1W & > Max mean e.i.r.p. density of 50mW /MHz > (ETSI: -6 dBm to be 18 dBm) The database documents e.i.r.p values. So it should be 1W - 6 dBm. The -6 dBm interpretation should be fully documented. 1W (30 dBm) - 6 dBm = 24 dBm This is the same as the "Limit for RF output power at the lowest power level (PL) of the TPC range" for this particular range. See below. > - 5725-5875 MHz: 23 dBm/MHz; Mean e.i.r.p. of 2W in any 10 MHz band > (ETSI: -6 dBm to be 17 dBm) The original rule was probably wrong or out of date. Please update the numbers together. The regulations say: Mean e.i.r.p. spectral density of 23 dBm/MHz Mean e.i.r.p. of 2W in any 10 MHz band WiFi channels are at least 20 MHz. That means the nominal limit is 4W / 36 dBm with TPC. This is the same as ETSI EN 302 502. This is the correct ETSI reference for the 5.8 GHz range. This also says The FWA device shall have the capability to reduce the operating mean EIRP level to a level not exceeding 24 dBm for ChS = 20 MHz and 21 dBm for ChS = 10 MHz. And since neither this database nor Linux supports specifying TPC, we could just reduce the power limit to 24 dBm so that the device always conforms. This is an interpretation of the rule, and should be properly documented, saying that this is derived from the lowest power setting under TPC. Thanks ChenYu > - 5925-6425 MHz: > * LPI: 23 dBm (200 mW) > Mean e.i.r.p. density for in-band emissions 10 dBm/MHz > Indoor only > * VLP: 14 dBm (25 mW) > Mean e.i.r.p. density for in-band emissions 1 dBm/MHz > Indoor and outdoor use > > Reference ETSI EN 301 893 [2], for the 5 GHz and 5.8 GHz ranges, TPC is > required. being able to reduce TX power by up to 6 dB. (Add this rule > followed by [1] with annotation "ETSI:") > > [1] https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf > [2] https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.01.01_60/en_301893v020101p.pdf > > Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> > --- > v2: > - align freq range of reference > - use power unit as reference > - -6dBm for 5 GHz and 5.8 GHz ranges > --- > db.txt | 12 ++++++++---- > 1 file changed, 8 insertions(+), 4 deletions(-) > > diff --git a/db.txt b/db.txt > index 60343a745ecf..648530192b75 100644 > --- a/db.txt > +++ b/db.txt > @@ -984,11 +984,15 @@ country JP: DFS-JP > # ref: http://www.arib.or.jp/english/html/overview/doc/1-STD-T74v1_1.pdf > (57000 - 66000 @ 2160), (10 mW) > > +# Source: > +# https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf > +# ETSI EN 301 893: https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.01.01_60/en_301893v020101p.pdf > country KE: DFS-JP > - (2402 - 2482 @ 40), (20) > - (5170 - 5250 @ 80), (23) > - (5490 - 5570 @ 80), (30), DFS > - (5735 - 5775 @ 40), (23) > + (2400 - 2483.5 @ 40), (2000 mW) > + (5150 - 5350 @ 80), (17), DFS > + (5470 - 5725 @ 80), (18), DFS > + (5725 - 5875 @ 40), (17), DFS > + (5925 - 6425 @ 320), (23), NO-OUTDOOR > > country KH: DFS-ETSI > (2402 - 2482 @ 40), (20) > -- > 2.25.1 >
diff --git a/db.txt b/db.txt index 60343a745ecf..648530192b75 100644 --- a/db.txt +++ b/db.txt @@ -984,11 +984,15 @@ country JP: DFS-JP # ref: http://www.arib.or.jp/english/html/overview/doc/1-STD-T74v1_1.pdf (57000 - 66000 @ 2160), (10 mW) +# Source: +# https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf +# ETSI EN 301 893: https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.01.01_60/en_301893v020101p.pdf country KE: DFS-JP - (2402 - 2482 @ 40), (20) - (5170 - 5250 @ 80), (23) - (5490 - 5570 @ 80), (30), DFS - (5735 - 5775 @ 40), (23) + (2400 - 2483.5 @ 40), (2000 mW) + (5150 - 5350 @ 80), (17), DFS + (5470 - 5725 @ 80), (18), DFS + (5725 - 5875 @ 40), (17), DFS + (5925 - 6425 @ 320), (23), NO-OUTDOOR country KH: DFS-ETSI (2402 - 2482 @ 40), (20)
Communications of Authority of Kenya issued GUIDELINES ON THE USE OF RADIOFREQUENCY SPECTRUM BY SHORT RANGE DEVICES on JUNE 2022 [1]. The section 5.8. covers frequency bands and technical parameters for non-specific short range applications and wireless access systems. - 2400-2483.5 MHz: 2W e.i.r.p. - 5150-5350 MHz: 200mW; max e.i.r.p. density of 10mW/MHz (ETSI: -6 dBm to be 17 dBm) - 5470-5725 MHz: 250mW; Max mean e.i.r.p. of 1W & Max mean e.i.r.p. density of 50mW /MHz (ETSI: -6 dBm to be 18 dBm) - 5725-5875 MHz: 23 dBm/MHz; Mean e.i.r.p. of 2W in any 10 MHz band (ETSI: -6 dBm to be 17 dBm) - 5925-6425 MHz: * LPI: 23 dBm (200 mW) Mean e.i.r.p. density for in-band emissions 10 dBm/MHz Indoor only * VLP: 14 dBm (25 mW) Mean e.i.r.p. density for in-band emissions 1 dBm/MHz Indoor and outdoor use Reference ETSI EN 301 893 [2], for the 5 GHz and 5.8 GHz ranges, TPC is required. being able to reduce TX power by up to 6 dB. (Add this rule followed by [1] with annotation "ETSI:") [1] https://www.ca.go.ke/sites/default/files/2023-06/Guidelines-on-the-Use-of-Radiofrequency-Spectrum-by-Short-Range-Devices-2022.pdf [2] https://www.etsi.org/deliver/etsi_en/301800_301899/301893/02.01.01_60/en_301893v020101p.pdf Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> --- v2: - align freq range of reference - use power unit as reference - -6dBm for 5 GHz and 5.8 GHz ranges --- db.txt | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)