School of Specs 23.501v20.2.0

3GPP 23.501 v20.2.0 — the document's own text

6.2.4 PCF

Taught in 4. What each network function does (The 5G system architecture, in depth), 2. Who does what in the core (The 5G system architecture, overview).

The Policy Control Function (PCF) includes the following functionality:

  • Supports unified policy framework to govern network behaviour.
  • Provides policy rules to Control Plane function(s) to enforce them.
  • Accesses subscription information relevant for policy decisions in a Unified Data Repository (UDR).
  • Support PDU Set based Handling as defined in clause 5.37.5.

NOTE: The PCF accesses the UDR located in the same PLMN as the PCF.

The details of the PCF functionality are defined in clause 6.2.1 of TS 23.503 [45].