3 Definitions and abbreviations

29.2153GPPPolicy and Charging Control (PCC) over S9 reference pointRelease 17Stage 3TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

Home Routed Access: Roaming scenario where the PCEF is located in the HPLMN. In a Home Routed roaming scenario, the UE obtains access to the packet data network from the HPLMN.

IP-CAN session: association between a UE and an IP network.
The association is identified by one or more UE IPv4 addresses/ and/or IPv6 prefix together with a UE identity information, if available, and a PDN represented by a PDN ID (e.g. an APN). An IP-CAN session incorporates one or more IP-CAN bearers. Support for multiple IP-CAN bearers per IP-CAN session is IP-CAN specific. An IP-CAN session exists as long as the related UE IPv4 address and/or IPv6 prefix are assigned and announced to the IP network.

Visited Access (also known as local breakout): Roaming scenario where the PCEF is located in the VPLMN. In a Visited Access Roaming scenario, the UE obtains access to the packet data network from the VPLMN.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

ADC Application Detection and Control

AF Application Function

AN-Gateway Access Network Gateway

AVP Attribute-Value Pair

BBERF Bearer Binding and Event Reporting Function

DRMP Diameter Routing Message Priority

H-AF Home AF

H-PCRF Home PCRF

HPLMN Home PLMN

HR Home-Routed

HRPD High Rate Packet Data

HSGW HRPD Serving Gateway

NBIFOM Network-based IP flow mobility

OCS Online charging system

OFCS Offline charging system

PCC Policy and Charging Control

PCEF Policy and Charging Enforcement Function

PCRF Policy and Charging Rule Function

RCAF RAN Congestion Awareness Function

S-GW Serving Gateway

TDF Traffic Detection Function

TSSF Traffic Steering Support Function

UDC User Data Convergence

UDR User Data Repository

VA Visited Access

V-AF Visited AF

V-PCRF Visited PCRF

VPLMN Visited PLMN