EC21 disable lte band

IoT Modules LTE Standard Module
1

Hi,
i have an EC21 module and need to disable a frequency band.
Is there a way to force the module not to use a specific frequency band?

I found the command AT+QCFG=“band” in the AT-Commands manual. It seems to do what i need, but the description says: “The command specifies the preferred frequency bands to be searched of UE”.

“preferred” does not fulfill my requirements. i need a strict “must not use band X”. Also im not sure what “UE” stands for.

Is AT+QCFG=“band” the command that i need and the description is just missleading or is there another command to do it?

Thanks for any advice (also for clearification on the term UE)

2

Hello Flint, thanks for your question
According to your requirement, you can use AT+QCFG=“BAND” command to set.
at+qcfg=“band”
+QCFG: “band”,0xd3,0x1a0080800c5,0x0
The binary representation of 1a0080800c5 is 00011010000000001000000010000000000011000101 From right to left, a value of 1 represents the band supported by EC21. The method of locking the LTE band is that the position of the corresponding band is 1 to open the band, and the value 0 to close the band. You can choose related bands according to your needs.
UE is short for User Equipment, thank you.

1 Like