AT^SMONI Resposne Detail | Telit Cinterion IoT Developer Community
August 4, 2017 - 7:50am, 4707 views
I am using PHS8-US and PLS8-X modem.
From AT^SMONI we can get below response,
^SMONI: ACT,UARFCN,PSC,EC/n0,RSCP,MCC,MNC,LAC,cell,SQual,SRxLev,PhysCh,SF,Slot,EC/
n0,RSCP,ComMod,HSUPA,HSDPA
Example: ^SMONI: 3G,1007,169,-6.0,-121,310,410,3E29,C593E95,36,21,DPCH,256,2,-13.0,-102,0,11,12
In this we can get two value of RSCP (-121 and -102) then which value is useful to find signal strength?
Generally for signal quality monitoring it's better to use serving cell parameters which is always available. Values for dedicated channel are only available when the dedicated channel is established and may differ from the serving cell parameters.
So in resposne first RSCP and EC/n0 is for serving cell. Right?
When I compare value from AT+CSQ and AT^SMONI then there is large difference. It is about 20-30 dBm. Can you explain this?
There is already the sam discussion here: https://iot-developer.thalesgroup.com/threads/measuring-signal-strength-...
Let's keep it in one place.
What about respose detail? Which RSCP is used for serving cell?
Hi,
just to clarify:
at^smoni shows parameters of serving cell only. Please take a look on at spec:
^SMONI: ACT,UARFCN,PSC,EC/n0,RSCP,MCC,MNC,LAC,cell,SQual,SRxLev,PhysCh, SF,Slot,EC/n0,RSCP,ComMod,HSUPA,HSDPA
* In case of UE is camping on a UMTS (3G) cell:
SF,Slot,EC/n0,RSCP,ComMod,HSUPA,HSDPA are not present, so the only RSCP is 5th parameter.
* In case of UE has a dedicated channel (for example call in progress):
All parameters are present, you should focus on 16th parameter in this case.
According to AT+CSQ and AT^SMONI difference - CSQ should be used only in case of 2G, in case of 3G please use AT^SMONI only.
Best Regards,
Tomasz