Getting all UEs metrics with KPM

[mhmd97z]

Hello, I need to get the metrics of all active UEs with KPM. As far as I can see, KPM Style 1 gives an aggregation of all UEs' metrics while Style 5 gives the metrics of the UEs that we subscribe to their IDs. My question is how to get the list of UE IDs and how are these IDs being managed?

[penhauer]

To add to this question, We have investigated this issue here:

So apparently we need to provide "gNB-CU-UE-F1AP-ID" from the xApp to the RAN to get metrics for the UEs. The question is, how should we have these ids in the first place?

The only workaround I can think of is to get these "ids" from condition based service styles like style 4 or style 3 and then later on use style 5 for further processing.

[pgawlowicz]

You can use KPM Style 3 or 4 with some dummy conditions. Currently, the conditions are not checked and simply all UEs are returned. Once we implement the condition checking, you will need to provide a condition that is satisfied by all UEs (sth like RSSI > -200dBm).

[ersuneetsingh]

How can we change the KPM style and provide this condition like RSSI > 200dBm ? do we require to change in the configuration file during start the xAPP ?

[penhauer]

The kpm_mon_xapp.py can take the service style as a command line argument.

[ersuneetsingh]

I am using flexric, this kpm_mon_xapp.py is available for oran-sc-ric. Not sure how to set KPM style if using flexric.

[penhauer]

I guess in this case you have to inspect the code to change the style.