Policy and Charging Rules Function (PCRF)

The PCRF controls Qos and charging rules for subscriber sessions, ensuring optimal service delivery while enforcing operator policies. It dynamically evaluates user data, session states, and network conditions to determine appropriate traffic handling.

• Context & Deployment: The PCRF functionality is integrated within the PCF for a more unified policy approach, but its classic EPC role can be explored through its interfaces (e.g., Gx diameter interface with the PGW).
• Interfaces: Gx, Gy, and Rx