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


LTE Signal strength

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

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


CoverageRSRPRSRP (dBm)RSRQRSRQ (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


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

NB-IoT Bands

Each Lobaro hardware only supports a subset of bands. 

Operators might change bands without prior notice. 


BandUplink (TX)Downlink (RX)BandwidthDuplex-ModeUsed by
B31710-1785 MHz 1805-1880MHz75 MHz

B8

880 - 915 MHz

925 - 960 MHz

25 MHz

HD-FDD

Telekom

B20

832 - 862 MHz

791 - 821 MHz

30 MHz

HD-FDD

Vodafone

The NB-IoT Bands selected for Europe are B3 (1800 MHz), B8 (900 MHz) and B20 (800 MHz). B8 and B20 are supported by most Lobaro devices, B3 might be available on special sales request.

Mobile operator and LTE band configuration

Depending on the mobile operator the Config Parameters Operator and (LTE) Band must be set.
Operator codes are 5 digit codes that indicate country and operator. The band defines the frequency range of the operator.

List of common operators:

  • MCC = Mobile Country Code
  • MNC = Mobile Network Code
  • Operator = MCC+MNC (Config Parameter for Lobaro Devices)
Network / AnbieterCountryOperator (optional)MCCMNCBand (optional)APN
Deutsche TelekomGermany26201262018
  • 1nce.com: iot.1nce.net
  • M2M: internet.m2mportal.de
Vodafone DeutschlandGermany262022620220
T-Mobile Austria GmbH (Magenta)Austria23203232038
TDC A/SDenmark238012380120 (?)
Telenor DenmarkDenmark238022380220 (?)
Telia DKDenmark238202382020 (?)
Tele2Sweden240072470720 (?)


Other provider codes are listed in a list of mobile operator codes on Wikipedia. Additional information on operators and bands can be found halberdbastion.com.






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