1 Introduction

This document provides information about how to configure the services and manageable objects in Oracle Communications Cloud Native Core Converged Policy using Representational State Transfer Application Program Interfaces (REST API).

1.1 Overview

The Policy solution provides a standard policy design experience and a consistent user experience. This solution supports both 4G and 5G networks. In addition, there is an overlap in PCF and PCRF functionalities, such as need for a policy engine, policy design, Rx, similarity between Sy and Nchf_Spending LimitControl, and so on. Policy utilizes this overlap to build microservices that can be used for providing PCRF and PCF functionalities. Although, it is a unified policy solution, you can deploy PCF and PCRF independently.

Policy is a functional element for policy control decision and flow based charging control functionality. It provides the following functions:
  • Policy rules for application and service data flow detection, gating, QoS, and flow based charging to the Session Management Function (SMF)
  • Access and Mobility Management related policies to the Access and Mobility Management Function (AMF)
  • UE Route Selection Policies (URSP) rules to User Equipement (UE) through AMF
  • Access to subscription information relevant for policy decisions in a Unified Data Repository (UDR)
  • Network control for service data flow detection, gating, and Quality of Service (QoS)
  • Flow based charging towards the Policy and Charging Enforcement Function (PCEF)
  • Receiving session and media related information from Application Function (AF) and informing AF of traffic plane events
  • Provision of PCC Rules to PCEF through the Gx reference point
The CNC Policy supports the above functions through the following services:
  • Session Management Service
  • Access and Mobility Service
  • Policy Authorization Service
  • User Equipment (UE) Policy Service
  • PCRF Core Service
  • Binding Service
  • Policy Data Source Service
  • Usage Monitoring Service
  • Notifier Service
  • NWDAF Agent

Note:

The performance and capacity of the Policy system may vary based on the Call model, Feature/Interface configuration, underlying CNE and hardware environment, including but not limited to the complexity of deployed policies, policy table size , object expression and custom json usage in policy design.

For more information about the Policy supported services, see Oracle Communications Cloud Native Core, Converged Policy User's Guide.

1.2 References

Refer the following documents for more information about Policy:

  • Oracle Communications Cloud Native Core, Converged Policy User's Guide
  • Oracle Communications Cloud Native Core, Converged Policy Installation, Upgrade and Fault Recovery Guide

1.3 OpenAPI Specification

Policy supports the OpenAPI version 1.0.0.