6. Definition of charging information

32.2533GPPCharging managementControl Plane (CP) data transfer domain chargingRelease 17Telecommunication managementTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

6.1 Data description for CP data transfer offline charging

6.1.1 Rf message contents

6.1.1.1 General

The CP data transfer offline charging uses the Charging Data Transfer messages Charging Data Request and Charging Data Response defined in TS 32.299 [50].

The Charging Data Request can be of type [Start, Interim and Stop], and includes all charging information. The Charging Data Response is an acknowledgement of the Charging Data Request.

Table 6.1.1.1.1 describes the use of these messages for offline charging.

Table 6.1.1.1.1: Offline charging messages reference table

Message	Source	Destination
Charging Data Request	CPCN	CDF
Charging Data Response	CDF	CPCN

The following clauses describe the different fields used in the Charging Data messages and the category in the tables is used according to the charging data configuration defined in clause 5.4 of TS 32.240 [1].

6.1.1.2 Charging data request message

Table 6.1.1.2.1 illustrates the basic structure of a Charging Data Request message from the CPCN as used for Control Plane data transfer offline charging.

Table 6.1.1.2.1: Charging Data Request message contents

Information Element	Category	Description
Session Identifier	M	Described in TS 32.299 [50]
Originator Host	M	Described in TS 32.299 [50]
Originator Domain	M	Described in TS 32.299 [50]
Destination Domain	M	Described in TS 32.299 [50]
Operation Type	M	Described in TS 32.299 [50]
Operation Number	M	Described in TS 32.299 [50]
Operation Identifier	O_C	Described in TS 32.299 [50]
User Name	O_C	Described in TS 32.299 [50]
Destination Host	O_C	Described in TS 32.299 [50]
Operation Interval	O_C	Described in TS 32.299 [50]
Origination State	O_C	Described in TS 32.299 [50]
Origination Timestamp	O_C	Described in TS 32.299 [50]
Proxy Information	O_C	Described in TS 32.299 [50]
Route Information	O_C	Described in TS 32.299 [50]
Operation Token	O_M	This field identifies the CP data transfer domain service.
Service Information	O_M	This field holds the Control Plane data transfer specific information described in clause 6.3.

NOTE: Detailed descriptions of the information elements are provided in TS 32.299 [50].

6.1.1.3 Charging data response message

Table 6.1.1.3.1 illustrates the basic structure of a Charging Data Response message as used for Control Plane data transfer offline charging.

Table 6.1.1.3.1: Charging Data Response message contents

Information Element	Category	Description
Session Identifier	M	Described in TS 32.299 [50]
Operation Result	M	Described in TS 32.299 [50]
Originator Host	M	Described in TS 32.299 [50]
Originator Domain	M	Described in TS 32.299 [50]
Operation Type	M	Described in TS 32.299 [50]
Operation Number	O_C	Described in TS 32.299 [50]
Operation Identifier	O_C	Described in TS 32.299 [50]
Operation Interval	O_C	Described in TS 32.299 [50]
Error Reporting Host	O_C	Described in TS 32.299 [50]
Origination State	O_C	Described in TS 32.299 [50]
Origination Timestamp	O_C	Described in TS 32.299 [50]
Proxy Information	O_C	Described in TS 32.299 [50]

NOTE: Detailed descriptions of the information elements are provided in TS 32.299 [50].

6.1.2 Ga message contents

Refer to clause 5.2.4 for further information.

6.1.3 CDR description on the B_cp interface

6.1.3.1 General

The following standard CDRs content and format are considered:

– CPDT-SCE-CDR generated for Control Plane data transfer from the SCEF;

– CPDT-SNN-CDR generated for Control Plane data transfer from the IWK-SCEF/MME.

For each of the CDR types, a parameter table, which gives a short description of the parameters, is provided. The category in the tables is used according to the charging data configuration defined in clause 5.4 of TS 32.240 [1]. Full definitions of the CDR parameters, sorted by the name in alphabetical order, are provided in TS 32.298 [51]

6.1.3.2 SCEF Control Plane data transfer charging data (CPDT-SCE-CDR)

Control Plane data transfer record shall be produced for each PDN connection to the SCEF. The fields in the record are specified in table 6.1.3.2.1.

Table 6.1.3.2.1: SCEF Control Plane data transfer charging data (CPDT-SCE-CDR)

Field	Category	Description
Record Type	M	SCEF Control Plane data transfer record.
Retransmission	Oc	This parameter, when present, indicates that information from retransmitted Accounting Requests has been used in this CDR.
Served IMSI	C	IMSI of the served party, if available.
Served MSISDN	OC	The primary MSISDN of the subscriber, if available.
Served IMEI	OC	The IMEI or IMEISV of the ME, if available.
Charging ID	M	Charging identifier used to identify this PDN connection in different records created by CPCNs.
Service Context Id	OM	This parameter indicates the CDR is applicable to Control Plane data transfer service.
Node Id	OM	Name of the recording entity.
Record Opening Time	M	Time stamp when the CDF opened the record: at PDN connection start or on subsequent partial records.
Duration	M	Duration of this record in the SCEF
Access Point Name Network Identifier	OM	The logical name of the connected access point to the external packet data network (network identifier part of APN).
SCEF ID	M	This parameter holds the identity of the SCEF used for this PDN connection.
Charging Characteristics	M	The Charging Characteristics applied to the PDN connection.
Charging Characteristics Selection Mode	OM	Holds information about how Charging Characteristics were selected.
RAT Type	OC	This field indicates the Radio Access Technology (RAT) type currently used by the Mobile Station as defined in TS 29.061 [207], when available.
Serving Node Identity	M	MME Identity used during this record.
Serving Node PLMN Identifier	OM	This fields holds the PLMN Identifier (MCC and MNC) serving the UE during this record.
Serving PLMN Rate Control	OC	This field holds the Serving PLMN Rate Control used by the MME during this record
List of NIDD submissions	OC	This field holds the list of NIDD submission containers. Each NIDD submission is time stamped, and contains the volume submitted, result of the submission and other information associated to this submission. See table 6.1.3.4.1 for a description of List of NIDD submissions.
External Identifier	OC	This field holds the external Identifier identifying the served party associated to the IMSI, if available.
APN Rate Control	OC	This field holds the list of APN Rate Controls enforced in the SCEF during this record.
Cause for Record Closing	M	The reason for the release of record from this SCEF.
Diagnostics	OM	A more detailed reason for the release of the PDN connection, when a single cause is applicable.
Local Record Sequence Number	OM	Consecutive record number created by this node. The number is allocated sequentially including all CDR types.
Record Sequence Number	C	Partial record sequence number, only present in case of partial records.
Record Extensions	OC	A set of network operator/manufacturer specific extensions to the record. Conditioned upon the existence of an extension.

6.1.3.3 Serving Network Control Plane data transfer charging data for IWK-SCEF/MME (CPDT-SNN-CDR)

If enabled, a Control Plane data transfer record shall be produced for each PDN connection to the IWK-SCEF/MME. The fields in the record are specified in table 6.1.3.3.1.

Table 6.1.3.3.1: Serving Network Control Plane data transfer charging data (CPDT-SNN-CDR)

Field	Category	Description
Record Type	M	IWK-Serving Network Control Plane data transfer record.
Retransmission	Oc	This parameter, when present, indicates that information from retransmitted Accounting Requests has been used in this CDR.
Served IMSI	C	IMSI of the served party, if available.
Served MSISDN	OC	The primary MSISDN of the subscriber, if available.
Served IMEI	OC	The IMEI or IMEISV of the ME, if available.
Charging ID	M	Charging identifier used to identify this PDN connection in different records created by CPCNs.
Service Context Id	OM	This parameter indicates the CDR is applicable to Control Plane data transfer service.
Node Id	OM	Name of the recording entity.
Record Opening Time	M	Time stamp when the CDF opened the record: at PDN connection start or on subsequent partial records.
Duration	M	Duration of this record in the Serving Network Node.
Access Point Name Network Identifier	OM	The logical name of the connected access point to the external packet data network (network identifier part of APN).
SCEF ID	M	This parameter holds the identity of the SCEF used for this PDN connection.
Charging Characteristics	M	The Charging Characteristics applied to the PDN connection.
Charging Characteristics Selection Mode	OM	Holds information about how Charging Characteristics were selected.
RAT Type	OC	This field indicates the Radio Access Technology (RAT) type currently used by the Mobile Station as defined in TS 29.061 [207], when available.
Serving Node Identity	M	MME Identity used during this record.
Serving Node PLMN Identifier	OC	This fields holds the PLMN Identifier (MCC and MNC) serving the UE during this record.
Serving PLMN Rate Control	OC	This field holds the Serving PLMN Rate Control used by the MME during this record.
List of NIDD submissions	OC	This field holds the list of NIDD submission containers. Each NIDD submission is time stamped, and contains the volume submitted, result of the submission and other information associated to this submission. See table 6.1.3.4.1 for a description of List of NIDD submissions.
Cause for Record Closing	M	The reason for the release of record from this Serving Network Node.
Diagnostics	OM	A more detailed reason for the release of the PDN connection, when a single cause is applicable.
Local Record Sequence Number	OM	Consecutive record number created by this node. The number is allocated sequentially including all CDR types.
Record Sequence Number	C	Partial record sequence number, only present in case of partial records.
Record Extensions	OC	A set of network operator/manufacturer specific extensions to the record. Conditioned upon the existence of an extension.

6.1.3.4 NIDD submission

Table 6.1.3.4.1 contains the description fields in the List of NIDD submissions.

Table 6.1.3.4.1: NIDD submission within List of NIDD submissions

Field	Category	Description
Submission Timestamp	OC	This field holds the time stamp when the data transfer request NIDD submission was submitted to the CPCN node.
Event Timestamp	OC	This field holds the time stamp when the event triggered the generation of charging information from the CPCN node, for the NIDD submission.
Data Volume Downlink	OC	This field includes the number of octets transmitted during the NIDD submission in downlink direction.
Data Volume Uplink	OC	This field includes the number of octets transmitted during the NIDD submission in uplink direction.
Service Change Condition	OC	This field holds the specific reason for the NIDD submission container, e.g. NIDD submission response receipt, NIDD submission response sending, NIDD delivery to the UE, NIDD submission timeout, NIDD delivery from the UE error.
Submission Result Code	OC	This field includes the result of NIDD submission.

6.2 Data description for CP data transfer online charging

6.2.1 Ro message contents

Not specified in the present document.

6.3 CP data transfer charging specific parameters

6.3.1 Definition of CP data transfer charging information

6.3.1.1 CP data transfer charging information assignment for Service Information

The components in the Service Information that are used for CP data transfer charging can be found in table 6.3.1.1.1.

Table 6.3.1.1.1: Service Information used for CP data transfer charging

Information Element	Category	Description
Service Information	O_M	This is a structured field and holds the 3GPP specific parameter as defined in TS 32.299 [50].
Subscriber Identifier	O_M	This field contains the identification of the user (i.e. IMSI, and MSISDN if any).
IMS Information	O_M	This is a structured field and holds IMS specific parameters. The complete structure is defined in TS 32.260 [20].
Node Functionality	O_M	This field contains the function of the CPCN node (i.e. SCEF, IWK-SCEF, MME)
PS Information	O_M	This is a structured IE and hold PS specification parameters. The complete structure is defined in TS 32.251 [11].
PDN Connection Charging Identifier	O_M	This parameter holds the Charging Id for this PDN connection (this together with the SCEF ID constitutes a unique identifier for the PDN connection).
Node Id	Oc	This IE holds the name of the Node.
Called Station Id	OC	This parameter contains the identifier of the access point (APN) the user is connected to.
Charging Characteristics	OC	The Charging Characteristics applied to this PDN connection in the CPCN.
Charging Characteristics Selection Mode	OC	Holds information about how Charging Characteristics were selected.
User Equipment Info	OC	This field holds the identification of the terminal (IMEI or IMEISV).
RAT Type	OC	This field indicates which Radio Access Technology (RAT) is currently serving the UE as defined in TS 29.061 [207].
Serving Node MCC MNC	OC	This field holds the MCC and MNC serving the UE.
Serving PLMN Rate Control	OC	This parameter holds the Serving PLMN Rate Control used by MME during this record
APN Rate Control	OC	This parameter holds the APN Rate Control enforced in the SCEF during this record.
Change Condition	Oc	This field holds the reason for sending Charging Data Request from the CPCN.
Diagnostics	OC	This parameter holds a more detailed reason for the release of the PDN connection, when a single cause is applicable, and complements the "Change Condition" information.
CPDT Information	O_M	This is a structured field and holds the CP data transfer specific parameters. The details are defined in clause 6.3.1.2.

6.3.1.2 Definition of the CP data transfer Information

CP data transfer specific charging information is provided within the CPDT Information. The fields of the CPDT Information are indicated with the CPCN node (SCEF, IWK-SCEF, MME) from which the information is sent.

The detailed structure of the CPDT Information can be found in table 6.3.1.2.1.

Table 6.3.1.2.1: Structure of the CPDT Information

Information Element	Category	Description
External Identifier	OC	This parameter holds the external Identifier identifying the served party associated to the IMSI, if available
SCEF ID	OC	This parameter holds the identity of the SCEF used for this PDN connection.
Serving Node Identity	OC	This parameter holds the MME Identity of the MME serving the UE.
Serving Node Change	O_C	This parameter is present if this is first Charging Data Request after a change from another MME.
NIDD submission	OC	This parameter holds the NIDD submission container associated to trigger conditions met.
Submission Timestamp	OC	This parameter holds the time stamp when the data transfer request NIDD submission was submitted to the CPCN Node.
Event Timestamp	OC	This parameter holds the time stamp when the event triggered the generation of charging information from the CPCN Node, for the NIDD submission.
Data Volume Uplink	OC	This parameter holds the data volume transmitted in uplink direction
Data Volume Downlink	OC	This parameter holds the data volume transmitted in downlink direction
Change Condition	Oc	This parameter holds the specific reason for the NIDD submission container to be added, e.g. NIDD submission response receipt, NIDD submission response sending, NIDD delivery to the UE, NIDD submission timeout, NIDD delivery from the UE error.
Result Code	OC	This parameter holds the result of NIDD submission

6.3.2 Detailed message format for offline charging

The following clause specifies per Operation Type the charging data that are sent by CPCN for CP data transfer offline charging.

The Operation Types are listed in the following order: S (Start)/I (Interim)/S (Stop)/E (Event). Therefore, when all Operation Types are possible it is marked as SISE. If only some Operation Types are allowed for a node, only the appropriate letters are used (i.e. SIS or E) as indicated in the table heading. The omission of an Operation Type for a particular field is marked with "-" (i.e. SI-E). Also, when an entire field is not allowed in a node the entire cell is marked as "-".

Table 6.3.2.1 illustrates the basic structure of the supported fields in the Charging Data Request message for CP data transfer offline charging.

Table 6.3.2.1: Supported fields in Charging Data Request message

Information Element	Node Type	MME	IWK-SCEF	SCEF
Information Element	Supported Operation Types	S/I/S/E	S/I/S/E	S/I/S/E
Session Identifier		SIS-	SIS-	SIS-
Originator Host		SIS-	SIS-	SIS-
Originator Domain		SIS-	SIS-	SIS-
Destination Domain		SIS-	SIS-	SIS-
Operation Type		SIS-	SIS-	SIS-
Operation Number		SIS-	SIS-	SIS-
Operation Identifier		SIS-	SIS-	SIS-
User Name		SIS-	SIS-	SIS-
Destination Host		SIS-	SIS-	SIS-
Operation Interval		SIS-	SIS-	SIS-
Origination State		SIS-	SIS-	SIS-
Origination Timestamp		SIS-	SIS-	SIS-
Proxy Information		SIS-	SIS-	SIS-
Route Information		SIS-	SIS-	SIS-
Operation Token		SIS-	SIS-	SIS-
Subscriber Identifier		SIS-	SIS-	SIS-
Node Functionality		SIS-	SIS-	SIS-
PDN Connection Charging Id		SIS-	SIS-	SIS-
Node Id		SIS-	SIS-	SIS-
Called Station Id		SIS-	SIS-	SIS-
Charging Characteristics		SIS-	SIS-	SIS-
Charging Characteristics Selection Mode		SIS-	SIS-	SIS-
User Equipment Info		SIS-	SIS-	SIS-
RAT Type		SIS-	SIS-	SIS-
Serving Node MCC MNC		SIS-	SIS-	SIS-
Serving PLMN Rate Control		SIS-	SIS-	SIS-
APN Rate Control		–	–	SIS-
Change Condition		SIS-	SIS-	SIS-
Diagnostics		SIS-	SIS-	SIS-
External Identifier		SIS-	SIS-	SIS-
SCEF ID		SIS-	SIS-	SIS-
Serving Node Identity		SIS-	SIS-	SIS-
Serving Node Change		S—	–	–
NIDD submission		SIS-	SIS-	SIS-

6.3.3 Detailed message format for online charging