LTE Signal Strength Metrics

Some Lobaro devices do support mobile connections like NB-IoT or LTE-Cat-M1.


LTE Signal strength

The signal strength of the LTE-M1 or NB-IoT network can be derived from the RSRP and RSRQ dimensionless values.

  • RSRP - 140 = dBm
  • RSRQ  / 2 - 19.5 = dB


CoverageLTE RSRPLTERSRP (dBm)RSRQRSRQ (dB)

Average power received

Average power received (dBm)

Average receive quality

Average receive quality (dB)
Excellent (4/4)80 - 97-60 to -4428 - 34-5.5 to -3
Good (3/4)60 - 79-80 to -6121 - 27-9 to -6
Mid Cell (2/4)40 - 59-100 to -8114 - 20-12.5 to -9.5
Cell Edge (1/4)20 - 39-120 to -1017 - 13-16 to -13
Unstable (0/4)0 - 20-140 to -1210 - 7-19.5 to -16.5

(info) The actual value of your devices connection statistics is shown in the Lobaro platform under "Device Properties".

(warning) For "unstable" network coverage Lobaro can't guarantee the correct function of the cellular uplinks and battery lifes under all conditions. Please consider a different location for the particular device.


Source: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fref_at_commands%2FREF%2Fat_commands%2Fmob_termination_ctrl_status%2Fproc_cesq_set.html