root@AX53U-S1:~# ubus call system board
{
"kernel": "5.10.201",
"hostname": "AX53U-S1",
"system": "MediaTek MT7621 ver:1 eco:3",
"model": "ASUS RT-AX53U",
"board_name": "asus,rt-ax53u",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "22.03.6",
"revision": "r20265-f85a79bcb4",
"target": "ramips/mt7621",
"description": "OpenWrt 22.03.6 r20265-f85a79bcb4"
}
}
root@AX53U-S1:~# grep vht_capab /var/run/hostapd*.conf
vht_capab=[RXLDPC][SHORT-GI-80][TX-STBC-2BY1][SU-BEAMFORMER][SU-BEAMFORMEE][MU-BEAMFORMER][MU-BEAMFORMEE][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][RX-STBC-1][SOUNDING-DIMENSION-2][BF-ANTENNA-4][MAX-MPDU-7991][MAX-A-MPDU-LEN-EXP7]
Reading https://openwrt.org/toh/asus/tuf-ax6000 I found
Beamforming and Basic Service Set (BSS) coloring
Beamforming improves data rates and extends range by directing signals toward specific clients instead of in every direction at once. By carefully controlling transmissions from several antennas, we can cause their signals to interfere on purpose and redirect the resulting signal in a new direction.
Basic Service Set (BSS) Coloring marks shared frequencies to allow 802.11ax access points to determine whether simultaneous use of spectrum is permissible. This technology reduces interference due to congestion and ensures consistent service to multiple connected devices in high-density environments.
Edit
/etc/config/wireless
and insert the following option under the radio section corresponding to the device which should be using beam forming:config wifi-device 'radio1' ... option he_su_beamformee '1' option he_bss_color '8'
- Valid selections for he_bbs_color are integers 1-63.
Restart wireless or reboot the device.
So are there recommanded settings for the ASUS RT-AX53U?
option he_su_beamformee '1'
option he_bss_color '??'
Edit: Looks like option he_bss_color
is a random number, where you use a different one for each channel.