Good day.
I have LTEEVK_KIT with BG96, the modem takes a very long time to register on the nbiot network, about 30 minutes, sometimes it does not register. Current commands to the modem:
How can you speed up registration on the nbiot network? what am I doing wrong?
Generally, in my experience, an NB-IOT would usually be a Home SIM. It won’t take too much for module searching the CAT-NB network and register.
the normal priority of PLMN is list as below ,
RPLMN > HPLMN/EHPLMN > UPLMN > OPLMN > High quality signal PLMN(in random order) > other PLMN(decreasing order)
if you use one MVNO SIm , this module will have to do full band searching , it normal case
if you know the band info , you can lock band , it will speed up the procedure of register .
like below :
AT+QCFG=“BAND”,0,1,1 // Lock to B1（catm & nb）
AT+QCFG=“BAND”,0,2,2 // Lock to B2（catm & nb）
AT+QCFG=“BAND”,0,4,4 // Lock to B3（catm & nb）
AT+QCFG=“BAND”,0,8,8 // Lock to B4（catm & nb）
AT+QCFG=“BAND”,0,10,10 // Lock to B5（catm & nb）
AT+QCFG=“BAND”,0,80,80 // Lock to B8（catm & nb）
AT+QCFG=“BAND”,0,800,800 // Lock to B12（catm & nb）
AT+QCFG=“BAND”,0,1000,1000 // Lock to B13（catm & nb）
AT+QCFG=“BAND”,0,20000,20000 // Lock to B18（catm & nb）
AT+QCFG=“BAND”,0,40000,40000 // Lock to B19（catm & nb）
AT+QCFG=“BAND”,0,80000,80000 // Lock to B20（catm & nb）
AT+QCFG=“BAND”,0,2000000,2000000 // Lock to B26（catm & nb）
AT+QCFG=“BAND”,0,8000000,8000000 // Lock to B28（catm & nb）
