Overview

The Policy Control Function (PCF) is a functional element for policy control decision and flows based charging control functionalities. The PCF 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)

  • Provide UE Route Selection Policies (URSP) rules to UE via AMF
The PCF supports the above functions through the following services:
  • Session Management Service
  • Access and Mobility Service
  • Policy Authorization Service
  • User Equipment (UE) Policy Service
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