USAGE MONITORING METHOD AND SYSTEM SUPPORTING TRAFFIC DETECTION FUNCTION

摘要

Disclosed are a usage monitoring method and system supporting a traffic detection function. One solution is: a PCRF delivering a usage monitoring policy corresponding to an application to a PCEF integrated with a TDF, or a PCEF and a separate TDF, or a separate TDF; and the PCEF integrated with the TDF, or the PCEF and the separate TDF, or the separate TDF performing usage monitoring according to the usage monitoring policy. In this way, the problem that the PCRF cannot achieve usage monitoring control at the level of service data flows of a service data flow template during usage monitoring can be solved. One method in another solution of the present invention is: when usage monitoring at an IP-CAN level is performed in a separate TDF architecture, a PCEF monitoring usage at the IP-CAN level, and a TDF monitoring and calculating discarded usage, and reporting the calculated discarded usage to a PCRF; and the PCRF correcting, according to the discarded usage reported by the TDF, an error in the usage at the IP-CAN level reported by the PCEF. In this way, the problem of usage monitoring control at the IP-CAN level in the TDF architecture during usage monitoring can be solved.