In recent years, mobile data network becomes more and more popular. The operators are facing the challenges of rapid growth of subscribers, the fast expansion of mobile network traffics and flat-rate traffics. There are more application services that are provided to subscribers across the mobile data network. The application services (ex. voice and streaming) have different performance requirements. Therefore, the development of QoS (Quality of Service) concept in LTE (Long-Term Evolution) provides subscriber differentiation. The PCC architecture allows QoS control, the charging control and the policy control to be applied on a per service data flow basis. This article introduces the QoS and PCC (Policy and Charging Control) technology from aspects of standards evolution, architecture, key parameter, and procedures.
3GPP LTE QoS PCC