Cisco Cisco Packet Data Gateway (PDG) Guia De Resolução De Problemas
Gx Interface Support
Rel. 7 Gx Interface ▀
Cisco ASR 5000 Series Enhanced Feature Configuration Guide ▄
OL-22982-01
It is possible to indicate to the PCEF that interactions with the charging systems are not required for a PCC rule, i.e. to
perform neither accounting nor credit control for this SDF, and then no offline charging information is generated.
perform neither accounting nor credit control for this SDF, and then no offline charging information is generated.
Supported Features:
Provisioning of Charging-related Information for the IP-CAN Session
Provisioning of Charging Addresses: Primary or secondary event charging function name (Online Charging
Server (OCS) addresses)
Important:
In this release, provisioning of primary or secondary charging collection function
name (Offline Charging Server (OFCS) addresses) over Gx is not supported.
Provisioning of Default Charging Method
Important:
In this release, PCEF does not send the default online and offline charging method in the Credit
Control Request - Initial (CCR(I)).
Charging Correlation
For the purpose of charging correlation between SDF level and application level (e.g. IMS) as well as on-line charging
support at the application level, applicable charging identifiers and IP-CAN type identifiers are passed from the PCRF
to the AF, if such identifiers are available.
support at the application level, applicable charging identifiers and IP-CAN type identifiers are passed from the PCRF
to the AF, if such identifiers are available.
For IMS bearer charging, the IP Multimedia Core Network (IM CN) subsystem and the Packet Switched (PS) domain
entities are required to generate correlated charging data.
entities are required to generate correlated charging data.
In order to achieve this, the Gateway provides the GGSN Charging Identifier (GCID) associated with the PDP context
along with its address to the PCRF. The PCRF in turn sends the IMS Charging Identifier (ICID), which is provided by
the P-CSCF, to the Gateway. The Gateway generates the charging records including the GCID as well as the ICID if
received from PCRF, so that the correlation of charging data can be done with the billing system.
along with its address to the PCRF. The PCRF in turn sends the IMS Charging Identifier (ICID), which is provided by
the P-CSCF, to the Gateway. The Gateway generates the charging records including the GCID as well as the ICID if
received from PCRF, so that the correlation of charging data can be done with the billing system.
PCRF also provides the flow identifier, which uniquely identifies an IP flow in an IMS session.
Policy and Charging Control (PCC) Rules
A PCC rule enables the detection of an SDF and provides parameters for policy control and/or charging control. The
purpose of the PCC rule is to:
purpose of the PCC rule is to:
Detect a packet belonging to an SDF.
Select downlink IP CAN bearers based on SDF filters in the PCC rule.
Enforce uplink IP flows are transported in the correct IP CAN bearer using the SDF filters within the
PCC rule.
Identify the service that the SDF contributes to.
Provide applicable charging parameters for an SDF.
Provide policy control for an SDF.