The UDM product from Oracle communications is a combination of the Authentication Server Function (AUSF) and Unified Data Manager (UDM) network functions as detailed out by 3GPP.

The UDM consolidates the data sources to create a single data narrative within a data warehouse. The resources, data model and usage are defined to access the subscription data through the Unified Data Repository services.

Oracle 5G UDM, implemented as cloud native function, offers a combination of the AUSF and UDM NF's as detailed out by 3GPP.

1. The Authentication Server Function (AUSF) supports authentication for 3GPP access as specified in 3GPP TS 33.501.
2. The Unified Data Manager Function (UDM) supports following functionalities:
   • Generate 3GPP 5G AKA Authentication Vectors
   • User Identification Handling (e.g. storage and management of SUPI for each subscriber in the 5G system)
   • UE's Serving NF Registration Management (e.g. storing serving AMF for UE, storing serving SMF for UE's PDU Session)
   • Supports retrieval of the UE's individual subscription data for slice selection, AM data, SM data, SmfSelection data, smf ue context data and supports acknowledgment of SoR & UpU function

For more information, refer to Unified Data Management User's Guide under Cloud Native documents on OHC.