C.4 Common charging architecture and framework

32.2403GPPCharging architecture and principlesCharging managementRelease 18Telecommunication managementTS

C.4.1 Charging mechanisms

(Void)

C.4.2 High level common architecture

The logical ubiquitous charging architecture and the information flows for offline and online charging of figure 4.2.1, applied to the convergent scenario (i.e. both the Fixed Broadband Access network and Evolved Packet Core (EPC) owned by a single operator) with PCEF located in Fixed Broadband Access is shown in the figure C.4.2.1 below, based on Architecture defined in TS 23.203 [71] annex S clause S.4.1.

Figure C.4.2.1: Logical ubiquitous charging architecture and information flows PCEF located in IP-Edge

C.4.3 Charging functions

(Void)

C.4.4 Reference points

C.4.4.1 Offline charging reference points

C.4.4.1.1 Gz

When applied to PCEF located in IP-Edge, the Gz reference point functionality relies on Rf or Ga Reference Points within the common charging architecture.

C.4.4.1.2 Gzn

The TDF when used for application based charging in a convergent scenario performs the same functionality as outlined in this document and in addition the Gzn reference point enables transport of offline charging information for both Non-seamless WLAN offloaded traffic from a 3GPP UE and for fixed devices.

C.4.4.2 Online charging reference points

C.4.4.2.1 Gy

When applied to PCEF located in IP-Edge, the Gy reference point functionality relies on Ro Reference Point within the common charging architecture.

C.4.4.2.2 Gyn

The TDF when used for application based charging in a convergent scenario performs the same functionality as outlined in this document and in addition the Gyn reference point allows online credit control for TDF based charging for both Non-seamless WLAN offloaded traffic from a 3GPP UE and for fixed devices.

Annex D (normative):
Distributed Charging Trigger Function