cellular iot fundamentals - lesson 1 - exercise 1

[Vivek01]

Hi,

i'm learning the exercise1 for AT commands to control modem and when i apply this command AT%XMONITOR i get the output as %XMONITOR: 5,"","","24202","0901",7,20,"02024720",428,6300,52,36,"","11100000","11100000","01001001" PSM not enabled and after following all steps until the end of the exercise nothing worked as example showed like if i run AT+CEDRXRDP the output comes like +CEDRXRDP: 0 OK. 

is my LTE-M provider gives this feature or not? how can i see and why i can't see the original output as the exercise showed me.

i assume that this is my feature that cellular monitor gives me the information if you need 

thanks

[Syed Maysum Abbas Zaidi]

Hi,

Your network provided most likely does not support PSM and eDRX as the result for %XMONITOR, exactly matches the pattern explaining if <Active-Time> is 11100000 <Active-Time> is 11100000, PSM cannot be used on that network. Moreover similarly you also don't see any useful values through AT+CEDRXRDP thus eDRX is also not supported or not granted by the network.

Best Regards,
Syed Maysum

[Vivek01]

okay so it means i can not get the right information from this commands that this exercise shows me.

thanks

[Syed Maysum Abbas Zaidi]

Hi,

You do get the correct information, as %XMONITOR reads a set of modem parameters which in your case shows that the PSM values requested in the previous step (+CPSMS command) have not been granted by the network.

Similarly +CEDRXRDP reads dynamic eDRX parameters but as you are getting 0 which means Current cell is not using eDRX and in practice indicates that your network does not support/enabled eDRX.

Best Regards,
Syed Maysum 

[Vivek01]

Hi,

okay so how can i enable or support eDRX and how the network will grant and enable my PSM or what should i have to do for successfully build this commands and get this output correctly?

thanks   

[Syed Maysum Abbas Zaidi]

Hi,

As the network in your case do not support these features, so you can not enable it. You may try out another SIM and check with that SIM provider if they supports PSM/eDRX.

Best Regards,
Syed Maysum