METHOD FOR REALIZING POLICY AND CHARGING CONTROL

摘要

A method for realizing Policy and Charging Control (PCC), includes that: the Policy and Charging Rules Function (PCRF) receives a policy and charging rules request message sent by the Policy and Charging Enforcement Function (PCEF), then compares acquired service flow of user with accumulative used flow, and according to the comparing result, constitutes PCC rule in term of local configured or acquired flow control policy. PCRF of the present invention makes PCC rule decision according to acquired service flow of user, accumulative used flow and flow control policy, and transmits PCC rule to the PCEF to execute. And, PCEF reports to PCRF when the service flow of user arrives at a threshold, PCRF makes PCC rule decision again and transmits to PCEF to execute, consequently the purpose of policy and charging control according to the service flow of user is achieved.