PLS62-W link quality LTE | Telit Cinterion IoT Developer Community
May 6, 2020 - 8:16am, 1082 views
We are using the PLS62-W but we are experiencing difficulties figuring out what our link quality is.
With other modules like the MC5i-W we used AT+CSQ to get the RSSI information. But for the PLS62-W the AT comand set document states this:
According to 3GPP TS 27.007 , the <rssi> value is not applicable to 3G networks.
Is this also valid for LTE? Because when we try this we get very low link quality values.
We also tried AT^SMONI. This gives us this respons: ^SMONI: 4G,2850,7,10,10,FDD,204,04,57DA,DE2F715,107,--,-86,-3.5,CONN. This seems to be okay.
My quesion is, what is the best way to determine the link quality when using LTE for this module?
Yes, it is true that because of the radio access technology differences RSSI is not the best link quality indicator for 3G and 4G.
For 3G you can use EC/n0 and RSCP, for 4G RSRP and RSRQ. All these parameters you can get with AT^SMONI command.
As for the interpretation it is a bit arbitrary and you can find some tables on the internet, for example here: https://wiki.teltonika-networks.com/view/Mobile_Signal_Strength_Recommen...