What is PCRF?

PCRF stands for Policy and Charging Rules Function. It's a crucial component in modern mobile and fixed broadband networks, primarily in 4G LTE, 5G, and other evolved packet core (EPC) architectures. The PCRF acts as a centralized policy decision point, dynamically managing network resources and controlling subscriber access based on predefined rules, subscriber profiles, and real-time network conditions. It enables operators to implement differentiated charging, quality of service (QoS) management, and traffic steering based on various factors like application type, subscriber plan, and network congestion. It's a key enabler for personalized and optimized network experiences.