EG915U : LTE band automatic selection

IoT Modules LTE Standard Module
1

Hi,

I would like more details on when the module can decide to change de selected LTE band.

After waiting for AT+CGREG/AT+CEREG, we execute the following commands :
AT+QISGP=…
AT+QIACT=…
AT+QIOPEN=…

Sometimes, it can take a long time (several hours, days…) before closing the connection with
AT+QICLOSE=…
AT+QIDEACT=…

So, is it possible for the module to change the selected band between the QIOPEN and the QICLOSE ? How can I be informed of this change without executing a AT+QNWINFO or AT+QENG=“servingcell” command ?

Thanks for any help or explanation

2

BAND changes are allowed between QIOPEN and QICLOSE, including base station cell handover and reseletion; But you still need to use QNWINFO and AT+QENG= “servingcell” to query

3

OK
Thanks for your answer