1. Cloud Native Unified Data Repository REST Specification Document
  2. Introduction
  3. Overview

Overview

The 5G Unified Data Repository (UDR) is one of the main key component of the 5G Service Based Architecture. UDR is a converged repository, which is used by 5G Network Functions to store the data.

Oracle 5G UDR is implemented as cloud native function and it offers a unified database for storing application, subscription, authentication, service authorization, policy data, session binding and Application state information. It exposes a HTTP2 based RESTful API for NF's and provisioning clients to access the stored data.

Oracle's 5G UDR:
  • Leverages a common Oracle Communications Cloud Native Framework
  • Is compliant to 3GPP Release 15 specification UDM
  • Is compliant to 3GPP v29.519 v16.2 (backward compatible with v15.3.0, by configuration) specification for PCF
  • Has tiered architecture providing separation between the connectivity, business logic and data layers
  • Uses Oracle MySQL Cluster CGE backend database provides through DB Tier.
  • Registers with NRF in the 5G network, so the other NFs in the network can discover UDR through NRF.
As per 3GPP, UDR supports following functionality:
  • Storage and retrieval of subscription data by the UDM.
  • Storage and retrieval of policy data by the PCF.
  • Storage and retrieval of structured data for exposure.
  • Storage and retrieval of SLF information, consumed by NRF.
  • Application data (including Packet Flow Descriptions (PFDs) for application detection, AF request information for multiple UEs), by the NEF.
  • Subscription and Notification feature.
Oracle's 5G UDR provides Unstructured Data Storage Function (UDSF) functionality. This functionality:
  • Supports storage and retrieval of unstructured data by any 5G NF. The specifications of UDSF are presently not defined by 3GPP completely.
  • This functionality is part of Oracle's 5G UDR solution.
Oracle's 5G UDR provides 5G SLF functionality. This functionality:
  • Supports Nudr-groupid-map service as defined by 3GPP
  • Complaint with 3GPP Release 16 for APIs to be consumed by 5G NRF
  • Supports REST/JSON based provisioning APIs for SLF data