Telecommunication management; Charging management; Proxy function
The present document is part of a series of documents that specify charging functionality and charging management in GSM/UMTS networks. The GSM/UMTS core network charging architecture and principles are specified in TS 32.240 [1], which provides an umbrella for other charging management TSs that specify:
- the content of the Charging Data Records (CDRs) per domain / subsystem / service (offline charging);
- the content of real-time charging messages per domain / subsystem / service (online charging);
- the functionality of online and offline charging for those domains / subsystems / services;
- the interfaces that are used in the charging framework to transfer the charging information (i.e. CDRs or charging events).
The complete document structure for these TSs is defined in TS 32.240 [1].
The present document specifies the Proxy Function in Domestic Service Provider (DSP).
The present document contains the architecture and functions of the Proxy Function logical components and thereby derives the functionality of the Proxy Function interfaces. This charging description only defines the interworking between CAMEL and Diameter. The Ro interface between the Proxy Function and Online Charging System (OCS) is out of scope of the present document.
The present document is related to other 3GPP charging TSs as follows:
- The common 3GPP charging architecture is specified in TS 32.240 [1];
- Voice Call Service (VCS) charging is specified in TS 32.276[36].
All references, abbreviations, definitions, descriptions, principles and requirements, used in the present document, that are common across 3GPP TSs, are defined in TR 21.905 [100] "Vocabulary for 3GPP Specifications". Those that are common across charging management in GSM/UMTS domains, services or subsystems are provided in the umbrella document TS 32.240 [1] and are copied into clause 3 of the present document for ease of reading. Finally, those items that are specific to the present document are defined exclusively in the present document.