UDR (User Data Repository)

April 22, 2021
UDR (User Data Repository) is a database of clients. It stores information on customers (services available for them, QoS parameters, etc.). It works with PCRF via Ud interface, which is used to obtain and modify user profiles.

How UDR works

As a rule, UDR operates as a cloud function; essentially it is a unified solution to store information on applications, subscriptions, authentications, services’ authorizations, policies and user sessions. Usually this solution has an API for stored data access. Most often UDR is of multi-level architecture, which provides division between connection levels, business logic and data.

UDR usage scenarios

UDR is a suitable tool to create scalable consolidated databases for information on subscribers and profiles; such information can be found in all corporate products. Several applications can use UDR simultaneously.

Storage and management of subscriber policies control, as well as pool data – is yet another popular scenario.

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