A.76 Monitoring of subscriber profile sizes in UDM

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

The subscriber profiles maintained by UDM have two parts – static and dynamic data. Dynamic part of the subscriber profile grows over time (e.g. due to roaming conditions, dynamic dereferencing of provisioning data, addition/enabling of new features). The uncontrolled and unnoticed growth of subscriber profiles may result in degraded system performance and lead to service impacts.

Various corrective actions varying from subscriber profile optimization (clean-up/compression/re-structuring) to applying configuration changes and scaling may be applied to resolve/mitigate the issue.

Operators need to be aware of the subscriber profile size dynamics in order to be able to mitigate potential network-wide problems before they occur.