Hello,
Are the 5G signal properties (rsrp, rsrq and sinr) going to be added to the
ModemManager Signal interface? I see no way of reading 5G signal information,
is there a plan to add this into ModemManager, from what I see there is also no
way of getting 5G signal info via libqmi.
Below is a Quectel 5G modem connected to T-Mobile's 5G network, in 5G NSA mode
the 5G signal is only active while transferring data , so you can only read the
5G signal info when transferring data which I can read via an AT command.
# mmcli -m 0
-----------------------------------
General | dbus path: /org/freedesktop/ModemManager1/Modem/0
| device id: a3e908bd7918e22d8142e72f50494268fee117ed
-----------------------------------
Hardware | manufacturer: QUALCOMM INCORPORATED
| model: RM500QGL_VF
| firmware revision: RM500QGLAAR01A01M4G_BETA_20200517F
| carrier config: Commercial-TMO
| carrier config revision: 0A01050F
| h/w revision: 20000
| supported: gsm-umts, lte, 5gnr
| current: gsm-umts, lte, 5gnr
| equipment id: 869710030002905
-----------------------------------
System | device:
/sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/usb4/4-1
| drivers: option1, qmi_wwan
| plugin: quectel
| primary port: cdc-wdm0
| ports: wwan0 (unknown), ttyUSB0 (qcdm), wwan0.1
(net),
| wwan0.2 (net), wwan0.3 (net), wwan0.4
(net), ttyUSB2 (at), cdc-wdm0 (qmi),
| ttyUSB1 (gps), ttyUSB3 (at)
-----------------------------------
Numbers | own: 16128142764
-----------------------------------
Status | lock: sim-pin2
| unlock retries: sim-pin (3), sim-pin2 (10), sim-puk (10),
sim-puk2 (10)
| state: registered
| power state: on
| access tech: lte
| signal quality: 52% (recent)
-----------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 4g
| allowed: 3g, 4g; preferred: 3g
| allowed: 5g; preferred: none
| allowed: 3g, 5g; preferred: 5g
| allowed: 3g, 5g; preferred: 3g
| allowed: 4g, 5g; preferred: 5g
| allowed: 4g, 5g; preferred: 4g
| allowed: 3g, 4g, 5g; preferred: 5g
| allowed: 3g, 4g, 5g; preferred: 4g
| allowed: 3g, 4g, 5g; preferred: 3g
| current: allowed: 2g, 3g, 4g, 5g; preferred: 5g
-----------------------------------
Bands | supported: utran-1, utran-3, utran-4, utran-6,
utran-5, utran-8,
| utran-2, eutran-1, eutran-2, eutran-3,
eutran-4, eutran-5, eutran-7,
| eutran-8, eutran-12, eutran-13,
eutran-14, eutran-17, eutran-18,
| eutran-19, eutran-20, eutran-25,
eutran-26, eutran-28, eutran-29,
| eutran-30, eutran-32, eutran-34,
eutran-38, eutran-39, eutran-40,
| eutran-41, eutran-42, eutran-46,
eutran-48, eutran-66, eutran-71,
| utran-19
| current: utran-1, utran-3, utran-4, utran-6,
utran-5, utran-8,
| utran-2, eutran-1, eutran-2, eutran-3,
eutran-4, eutran-5, eutran-7,
| eutran-8, eutran-12, eutran-13,
eutran-14, eutran-17, eutran-18,
| eutran-19, eutran-20, eutran-25,
eutran-26, eutran-28, eutran-29,
| eutran-30, eutran-32, eutran-34,
eutran-38, eutran-39, eutran-40,
| eutran-41, eutran-42, eutran-46,
eutran-48, eutran-66, eutran-71,
| utran-19
-----------------------------------
IP | supported: ipv4, ipv6, ipv4v6
-----------------------------------
3GPP | imei: 869710030002905
| operator id: 310260
| operator name: T-Mobile
| registration: home
-----------------------------------
3GPP EPS | ue mode of operation: csps-1
-----------------------------------
SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0
-----------------------------------
Bearer | dbus path: /org/freedesktop/ModemManager1/Bearer/0
# mmcli -m "$INDEX" --signal-get
----------------------
Signal | refresh rate: 30 seconds
----------------------
LTE | rssi: -80.00 dBm
| rsrq: -15.00 dB
| rsrp: -113.00 dBm
| s/n: 5.20 dB
Thanks,
Walter.
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