Telecommunication management; Charging management; Online Charging System (OCS) architecture study
The present document analyses the architectures and functions of the OCS and thereby derives the functionality of the OCS reference points. It is expected that the content of the present document will serve as a basis for detailed 3GPP specifications of reference points between the logical OCS functionalities. The functionality of the OCS, as described in the present document, applies to all charging domains (bearer, session and service).