A.4 Use case for mean PDU sessions number in network slice

28.5543GPP5G end to end Key Performance Indicators (KPI)Management and orchestrationRelease 18TS

It is necessary to evaluate the mean or maximum PDU session number in the network slice to indicate system load level. For example, if the mean or maximum value of the PDU sessions is high, maybe the system capacity should be increased. This KPI is focusing on network view.