interpretation of LTE_LC_EVT_PSM_UPDATE

[ing-barbiz]

Hello,

we have a device in Poland (Orange Poland) which gives the following PSM info:

00> [00:03:30.288,787] <inf> modem: PSM parameter update: TAU: 10800, Active time: -1

According to the documentation, this means that the TAU timer is 180h and the Active time timer is deactivated.

The behavior of the device is that it never goes to PSM (PSM SLEEP event is never caught).

Is that correct?

Thanks in advance

[Elfving]

Hello Marco,

You are net getting PSM currently. It might be that it is not supported by the network. 

Though could you run CPSMS and XMONITOR for me?

Regards,

Elfving

[ing-barbiz]

Hello Elfving,

unfotunately, the device is out at a client's il Poland for a test, so we don't have access to issue custom commands.

I suspect Orange Poland does not allow PSM.

Marco

[Elfving]

ing-barbiz said:

I suspect Orange Poland does not allow PSM.

That might be the case. Try to reach out to them about it.

Regards,

Elfving

[ing-barbiz]

I am investigating. But if PSM is not supported, why ten TAU: 10800 ?

marco 

[Elfving]

I am not sure exactly, which is why it would be also interesting to run CPSMS and XMONITOR/CEREG.

Though checking with Orange Poland will also help us getting to the bottom of this.

Regards,

Elfving