What the UDR does
The UDR provides a common repository for structured data used by network functions. This can include subscription, policy, exposure and application-related data.
Why separate data and logic
Separating storage from network-function logic supports reuse, scaling and consistent data access across cloud-native services.
Slicing relevance
Slice entitlements, policies and application context may depend on information maintained through the Core data layer.
Standards note: this page is an explanatory summary. Precise procedures, services and information elements are defined in the applicable 3GPP specifications.