Introduction

23.3353GPPRelease 17Stage 2Technical realization and information flowsTSUser Data Convergence (UDC)

The UDC concept (3GPP TS 22.101 [3]) supports a layered architecture, separating the data from the application logic in the 3GPP system, so that user data is stored in a logically unique repository allowing access from core and service layer entities, named Application Front Ends.

Network elements and functionalities should be designed to access user data remotely and without storing them permanently locally, i.e. the Front Ends shall work in a subscriber dateless configuration.