Re: [PATCH 1/5] wireless-regdb: Update regulatory info for New Zealand (NZ) for 2022

On Fri, Jul 5, 2024 at 2:06 PM Ping-Ke Shih <[email protected]> wrote:
>
> From: Ping-Ke Shih <[email protected]>
>
> Radiocommunications Regulations (General User Radio Licence for Short Range
> Devices) Notice 2022 listed spectrum:
>
> 2400.0000 - 2483.5000
>   * e.i.r.p. 0 dBW (1 W)

13. Transmitters using e.i.r.p. greater than 0 dBW (1 W) must employ
    frequency hopping or digital modulation techniques.

AFAIK WiFi uses digital modulation techniques. So this could be
raised up to 6 dBW?

> 5150.0000 - 5350.0000
>  * the maximum power is 0 dBW (1 W) e.i.r.p. and
>    the maximum permitted power spectral density is -13 dBW/MHz
>    (17 dBm/Hz, 50 mW/MHz) e.i.r.p.
>  * 5250 - 5350 MHz, If Transmitter Power Control is not used, then the
>    maximum power (e.i.r.p.) value shall be reduced by 3 dB.
>
> 5470.0000 - 5725.0000
>  * 5470 - 5725 MHz, transmitter peak power must not exceed -6 dBW (250 mW)
>    If Transmitter Power Control is not used, then the maximum power
>    (e.i.r.p.) value must be reduced by 3 dB.

We use e.i.r.p. value in the database. The limit is 1W, then minus 3 dB
due to lack of TPC.

> 5725.0000 - 5850.0000
>  * 5725 - 5850 MHz, the transmitter peak power must not exceed 0 dBW (1 W)
>    and the power spectral density must not exceed 17 dBm/MHz.

13. Transmitters using e.i.r.p. greater than 0 dBW (1 W) must employ
    frequency hopping or digital modulation techniques.

AFAIK WiFi uses digital modulation techniques. So this could be
raised up to 6 dBW?


Thanks
ChenYu

> 5925.0000 - 6425.0000
>  * the maximum power is -6 dBW (24 dBm, 250 mW ) e.i.r.p. and
>    the maximum permitted power spectral density is -19 dBW/MHz
>    (11 dBm/MHz, 12.6 mW/MHz) e.i.r.p. for low power devices.
>    Only be used indoors.
>  * the maximum power is -16 dBW (14 dBm, 25 mW ) e.i.r.p. and
>    the maximum permitted power spectral density is -29 dBW/MHz
>    (1 dBm/MHz, 1.26 mW/MHz) e.i.r.p. for very low power devices.
>    Very Low Power applications.
>
> 57000.0000 - 71000.0000
>  * for devices transmitting at 10 dBW e.i.r.p or less,
>    the power spectral density must not exceed -7 dBW/MHz e.i.r.p. and
>    the maximum transmit power must not exceed -3 dBW at the antenna port
>    or ports.
>  * for devices transmitting greater than 10 dBW e.i.r.p., the power
>    spectral density shall not exceed 8 dBW/MHz e.i.r.p and antennas with
>    a gain greater than 30 dBi shall be used.
>
> [1] https://gazette.govt.nz/notice/id/2022-go3100
>
> Signed-off-by: Ping-Ke Shih <[email protected]>
> ---
>  db.txt | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/db.txt b/db.txt
> index d7592c299c62..266ba2d48731 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1416,12 +1416,16 @@ country NP: DFS-JP
>         (5250 - 5330 @ 80), (20), DFS, AUTO-BW
>         (5735 - 5835 @ 80), (20)
>
> +# Source:
> +# https://gazette.govt.nz/notice/id/2022-go3100
>  country NZ: DFS-ETSI
> -       (2402 - 2482 @ 40), (30)
> -       (5170 - 5250 @ 80), (17), AUTO-BW
> -       (5250 - 5330 @ 80), (24), DFS, AUTO-BW
> -       (5490 - 5730 @ 160), (24), DFS
> -       (5735 - 5835 @ 80), (30)
> +       (2400 - 2483.5 @ 40), (30)
> +       (5150 - 5250 @ 80), (30), AUTO-BW
> +       (5250 - 5350 @ 80), (27), DFS, AUTO-BW
> +       (5470 - 5730 @ 160), (21), DFS
> +       (5725 - 5850 @ 80), (30)
> +       (5925 - 6425 @ 320), (24), NO-OUTDOOR
> +       (57000 - 71000 @ 2160), (40)
>
>  country OM: DFS-ETSI
>         (2402 - 2482 @ 40), (20)
> --
> 2.25.1
>