
Unified Data Management (UDM)
Unified Data Management
What is Unified Data Management (UDM) in 5G?
Unified Data Management is similar to Home Subscriber Server (HSS) in LTE; it is cloud-native and designed for 5G. It is responsible for generating credentials used during authentication, authorizing access based on user subscription, which it retrieves from the User Data Repository (UDR) and sends to the other network functions. UDM+HSS together authenticate and authorize users in 4G, 5G NSA, and 5G SA networks.
What is the function of UDM in 5G?
UDM network function supports different major functionalities in 5G. It generates authentication credentials used during the authentication process. It authorizes network access and roaming based on user subscriptions. It is responsible for subscription management and handles privacy protection by SUCI to SUPI conversion. The UDM also handles inter- and intra-RAT mobility.
Alepo 5G Core Network Function: UDM
Smooth Service and Access Authorization
Additionally, Alepo’s 5G UDM supports the following UE registration operations:
- Helps 5G-AKA authentication process by generating authentication credentials
- Supports SUCI de-concealing using profile a, profile b, null scheme method
- Stores and manages context for UEs serving NFs (for example, a serving-AMF context for UE registration or serving-SMF context for UE’s PDU session)
Seamless Connectivity on the Move
- Supports inter-RAT and intra-RAT mobility
- Maintains service and session continuity
- Ensure high Quality of Experience (QoE) for subscribers
Concurrent Support for 4G and 5G
- Supports interworking with 4G nodes over Diameter
- Offers mobility between 4G and 5G
New Revenue Streams
- Managing V2X subscriptions
- PLMN-based authentication and authorization (including roaming use cases)
- Device-based authorization
Innovation Across the 5G Ecosystem
- Supports NRF Interworking
- Tracks performance, KPI, log management (FCAPS)
- Supports CI/CD-based automated release management
- Ensures high availability by supporting geographic and local redundancy
- Prevents vendor lock-in and is interoperable with any best-of-breeds network
Related Resources
Collateral
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Press Releases
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Alepo and Nomios partner to offer carrier-grade AAA solutions. Nomios to provide secure AAA solutions to operator clients, starting in the Netherlands.
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Boldt Group to use Alepo platform to launch WiFi in casinos and hotels across Argentina
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