6. Definition of charging information

32.2563GPP5G connection and mobility domain chargingCharging managementRelease 16Stage 2TS

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

6.1 Data description for 5G connection and mobility charging

6.1.1 Message contents

6.1.1.1 General

The Charging Data Request and Charging Data Response are specified in TS 32.290 [57] and include charging information. The Charging Data Request can be of type [Event].

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

Table 6.1.1.1.1: Converged charging messages reference table

Message	Source	Destination
Charging Data Request	AMF	CHF
Charging Data Response	CHF	AMF

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 AMF as used for 5G connection and mobility converged charging.

Table 6.1.1.2.1: Charging Data Request message contents

Information Element	Category for converged charging	Description
Session Identifier	O_C	Described in TS 32.290 [57]
Subscriber Identifier	O_M	Described in TS 32.290 [57] In case Subscriber Identifier (i.e. SUPI) is not present (for emergency service), the User Equipment Info in table 6.2.1.2.1. shall be present for identifying the user.
NF Consumer Identification	M	Described in TS 32.290 [57]
NF Functionality	M	Described in TS 32.290 [57]
NF Name	O_C	Described in TS 32.290 [57]
NF Address	O_C	Described in TS 32.290 [57]
NF PLMN ID	O_C	Described in TS 32.290 [57]
Charging Identifier	–	This field is not applicable.
Invocation Timestamp	M	Described in TS 32.290 [57]
Invocation Sequence Number	M	Described in TS 32.290 [57]
Retransmission Indicator	–	This field is not applicable.
One-time Event	O_C	Described in TS 32.290 [57]
One-time Event Type	OC	Described in TS 32.290 [57]
Notify URI	–	This field is not applicable.
Service Specification Information	O_C	Described in TS 32.290 [57]
Triggers	O_C	This field is described in TS 32.290 [57] and holds the 5G connection and mobility specific triggers described in clause 5.2.1.
Multiple Unit Usage	O_C	Described in TS 32.290 [57].
Rating Group	M	Described in TS 32.290 [57]
Requested Unit	O_C	Described in TS 32.290 [57]
AMF Identifier	O_C	This field holds the AMF identifier.
AMF Charging Profile	O_C	This field holds the applicable AMF Charging Profile
Registration Charging Information	O_M	This field holds the registration specific information described in clause 6.2.1.2
N2 connection Charging Information	O_M	This field holds the N2 connection specific information described in clause 6.2.1.3
Location Reporting Charging information	O_M	This field holds the Location Reporting specific information described in clause 6.2.1.4

6.1.1.3 Charging data response message

Table 6.1.1.3.1 illustrates the basic structure of a Charging Data Response message from the CHF as used for 5G connection and mobility converged charging.

Table 6.1.1.3.1: Charging Data Response message contents

Information Element	Category for converged charging	Description
Session Identifier	O_C	Described in TS 32.290 [57]
Invocation Timestamp	M	Described in TS 32.290 [57]
Invocation Result	O_C	Described in TS 32.290 [57]
Invocation Sequence Number	M	Described in TS 32.290 [57]
Session Failover	O_C	This field is not applicable.
Triggers	O_C	This field is described in TS 32.290 [57] and holds the 5G connection and mobility specific triggers described in clause 5.2.1.
Multiple Unit Information	O_C	This field is applicable for ECUR.
Result Code	O_C	Described in TS 32.290 [57]
Rating Group	O_M	Described in TS 32.290 [57]
Granted Unit	O_C	Described in TS 32.290 [57]
Validity Time	O_C	Described in TS 32.290 [57]
AMF Charging Profile	O_C	This field holds the AMF Charging Profile to be applied
Location Reporting Charging information	Oc	This field holds the Location Reporting specific information described in clause 6.2.1.4

6.1.2 Ga message contents

See clause 5.2.4.

6.1.3 CDR description on the B_am interface

6.1.3.1 General

This clause describes the CDR content and format generated for 5G connection and mobility charging

The following tables provide a brief description of each CDR parameter. 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 Registration charging CHF CDR data

If enabled, CHF CDRs for Registration charging shall be produced for each registration and deregistration

The fields of Registration charging CHF CDR are specified in table 6.1.3.2.1.

Table 6.1.3.2.1: Registration charging CHF record data

Field	Category	Description
Record Type	M	CHF record.
Recording Network Function ID	OM	This field holds the name of the recording entity, i.e. the CHF id.
Subscriber Identifier	OM	This field holds the 5G Subscription Permanent Identifier (SUPI) of the served party. This fields should be present except for emergency session.
NF Consumer Information	M	This field holds the information of the AMF that used the charging service.
NF Functionality	M	This field contains the function of the node (i.e. AMF)
NF Name	OC	This field holds the name of the AMF used.
NF Address	OC	This field holds the IP Address of the AMF used.
NF PLMN ID	Oc	This field holds the PLMN identifier (MCC MNC) of the AMF.
Record Opening Time	M	Described in TS 32.298 [51]
Duration	M	Described in TS 32.298 [51]
Record Sequence Number	C	Described in TS 32.298 [51]
Cause for Record Closing	M	Described in TS 32.298 [51]
Diagnostics	OM	Described in TS 32.298 [51]
Local Record Sequence Number	OM	Described in TS 32.298 [51]
Record Extensions	OC	Described in TS 32.298 [51]
Registration Charging Information	O_M	This field holds the 5G registration specific information defined in clause 6.2.1.2.

6.1.3.3 N2 connection charging Information CHF CDR data

If enabled, CHF CDRs for N2 connection charging shall be produced for each N2 connection establishment and release.

The fields of N2 connection charging CHF CDR are specified in table 6.1.3.3.1.

Table 6.1.3.3.1: N2 connection charging CHF record data

Field	Category	Description
Record Type	M	CHF record.
Recording Network Function ID	OM	This field holds the name of the recording entity, i.e. the CHF id.
Subscriber Identifier	OM	This field holds the 5G Subscription Permanent Identifier (SUPI) of the served party. This fields should be present except for emergency session.
NF Consumer Information	M	This field holds the information of the AMF that used the charging service.
NF Functionality	M	This field contains the function of the node (i.e. AMF)
NF Name	OC	This field holds the name of the AMF used.
NF Address	OC	This field holds the IP Address of the AMF used.
NF PLMN ID	Oc	This field holds the PLMN identifier (MCC MNC) of the AMF.
Record Opening Time	OC	Described in TS 32.298 [51]
Duration	M	Described in TS 32.298 [51]
Record Sequence Number	C	Described in TS 32.298 [51]
Cause for Record Closing	M	Described in TS 32.298 [51]
Local Record Sequence Number	OM	Described in TS 32.298 [51]
Record Extensions	OC	Described in TS 32.298 [51]
N2 connection charging Information	O_M	This field holds the N2 connection specific information defined in clause 6.2.1.3

6.1.3.4 Location reporting charging CHF CDR data

If enabled, CHF CDRs for Location reporting charging shall be produced for each Location reporting.

The fields of Location reporting charging CHF CDR are specified in table 6.1.3.4.1.

Table 6.1.3.4.1: Location reporting charging CHF record data

Field	Category	Description
Record Type	M	CHF record.
Recording Network Function ID	OM	This field holds the name of the recording entity, i.e. the CHF id.
Subscriber Identifier	OM	This field holds the 5G Subscription Permanent Identifier (SUPI) of the served party. This fields should be present except for emergency session.
NF Consumer Information	M	This field holds the information of the AMF that used the charging service.
NF Functionality	M	This field contains the function of the node (i.e. AMF)
NF Name	OC	This field holds the name of the AMF used.
NF Address	OC	This field holds the IP Address of the AMF used.
NF PLMN ID	Oc	This field holds the PLMN identifier (MCC MNC) of the AMF.
Record Opening Time	M	Described in TS 32.298 [51]
Duration	M	Described in TS 32.298 [51]
Record Sequence Number	C	Described in TS 32.298 [51]
Cause for Record Closing	M	Described in TS 32.298 [51]
Local Record Sequence Number	OM	Described in TS 32.298 [51]
Record Extensions	OC	Described in TS 32.298 [51]
Location reporting charging Information	O_M	This field holds the Location reporting specific information defined in clause 6.2.1.4.

6.2 5G connection and mobility charging specific parameters

6.2.1 Definition of 5G connection and mobility charging information

6.2.1.1 General

The Charging Information parameter used for 5G connection and mobility charging is provided in the following clauses.

6.2.1.2 Definition of Registration charging information

Specific charging information used for 5G registration charging is provided within the Registration Charging Information.

The detailed structure of the Registration Charging Information can be found in table 6.2.1.2.1.

Table 6.2.1.2.1: Structure of Registration Charging Information

Information Element	Category	Description
Registration message type	M	This field holds the message type received by the AMF associated to registration: registration (initial, mobility, periodic, emergency), deregistration.
User Information	O_M	Group of user information.
User Identifier	O_C	This field contains the identification of the user (i.e. GPSI).
User Equipment Info	O_C	This field holds the identification of the terminal (i.e. PEI, MAC Address) It may be used for identifying the user and shall be present in case Subscriber Identifier is not present.
unauthenticatedFlag	O_C	This field indicates the served SUPI is not authenticated.
Roamer In Out	O_C	This field holds an indication if the roamer is in-bound or out-bound. This field is present only if UE is identified as a roamer.
UE 5GMM Core Network Capability	O_C	This field holds the UE 5GMM Core Network Capability included in UE MM Core network capabilities, as specified in clause 5.4.4a TS 23.501 [200]
MICO Mode Indication	O_C	This field indicates whether the MICO Mode is applicable or not.
SMS Supported Indication	O_C	This field indicates whether SMS is supported or not.
RAT Type	O_C	This field holds the Radio Access Technology (RAT) currently serving the UE.
TAI List	O_C	This field holds a set of tracking areas composing the Registration Area.
User Location Info	O_C	This field indicates details of where the UE is currently located (access-specific user location information).
PSCell Information	O_C	This field holds the PSCell: Primary SCG (Secondary Cell Group) Cell
UE Time Zone	O_C	This field holds the Time Zone of where the UE is located, if available where the UE currently resides.
Mobility Restrictions	O_C	This field holds the Mobility Restrictions applicable to the UE: RAT restriction, Forbidden area, Service area restrictions and Core Network type restriction.
Requested NSSAI	O_C	This field holds the requested NSSAI.
Allowed NSSAI	O_C	This field holds the allowed NSSAI consisting of one or more S-NSSAIs for serving PLMN in the present Registration Area.
Rejected NSSAI	O_C	This field holds the rejected NSSAI.
NSSAI mapping list	O_C	This field holds mapping of each S-NSSAI of the Allowed NSSAI to the S-NSSAIs of the Subscribed S-NSSAIs.
AMF UE NGAP ID	O_M	This fields holds the UE association over the N2 interface within the AMF.
RAN UE NGAP ID	O_M	This fields holds the RAN UE NGAP ID over N2 interface.
RAN Node Id	O_M	This fields holds the Global RAN Node ID.

6.2.1.3 Definition of N2 Connection charging information

Specific charging information used for 5G N2 Connection charging is provided within the N2 connection charging Information.

The detailed structure of the N2 connection Charging Information can be found in table 6.2.1.3.1.

Table 6.2.1.3.1: Structure of N2 Connection Charging Information

Information Element	Category	Description
N2 Connection message type	M	This field holds the N2 message type received by the AMF.
User Information	O_M	Group of user information.
User Identifier	O_C	This field contains the identification of the user (i.e. GPSI).
User Equipment Info	O_C	This field holds the identification of the terminal (i.e. PEI, MAC Address) It is used for identifying the user in case SUPI is not present during emergency service.
unauthenticatedFlag	O_C	This field indicates the served SUPI is not authenticated.
User Location Info	O_C	This field indicates details of where the UE is currently located (access-specific user location information).
PSCell Information	O_C	This field holds the PSCell: Primary SCG (Secondary Cell Group) Cell
UE Time Zone	O_C	This field holds the Time Zone of where the UE is located, if available where the UE currently resides.
RAT Type	O_C	This field holds the Radio Access Technology (RAT).
AMF UE NGAP ID	O_M	This fields holds the UE association over the N2 interface within the AMF.
RAN UE NGAP ID	O_M	This fields holds the RAN UE NGAP ID over N2 interface.
RAN Node Id	O_M	This fields holds the Global RAN Node ID.
Mobility Restrictions	O_C	This field holds the Mobility Restrictions applicable to the UE: RAT restriction, Forbidden area, Service area restrictions and Core Network type restriction.
Allowed NSSAI	O_C	This field holds the allowed NSSAI consisting of one or more S-NSSAIs for serving PLMN in the present Registration Area.
RRC Establishment Cause	O_C	This fields holds the reason for RRC Connection Establishment as received from the UE.

6.2.1.4 Definition of Location Reporting charging information

Specific charging information used for 5G Location Reporting charging is provided within the Location reporting charging Information.

The detailed structure of the Location reporting charging Information can be found in table 6.2.1.4.1.

Table 6.2.1.4.1: Structure of Location Reporting Charging Information

Information Element	Category	Description
Location reporting message type	M	This field holds the location reporting message type received by the AMF.
User Information	O_M	Group of user information.
User Identifier	O_C	This field contains the identification of the user (i.e. GPSI).
User Equipment Info	O_C	This field holds the identification of the terminal (i.e. PEI, MAC Address) It is used for identifying the user in case SUPI is not present during emergency service.
unauthenticatedFlag	O_C	This field indicates the served SUPI is not authenticated.
User Location Info	O_M	This field indicates details of where the UE is currently located under the access type.
PSCell Information	O_C	This field holds the PSCell: Primary SCG (Secondary Cell Group) Cell
UE Time Zone	O_C	This field holds the Time Zone of where the UE is located, if available where the UE currently resides.
Presence Reporting Area Information	O_C	This field contains the Presence Reporting Area Information of UE as defined in TS 23.501 [200], comprising the Presence Reporting Area identifier(s) and an indication on whether the UE is inside or outside the Presence Reporting Area, if available.
RAT Type	O_C	This field holds the Radio Access Technology (RAT).

6.2.2 Formal 5G connection and mobility charging parameter description

6.2.2.1 5G connection and mobility CHF CDR parameters

The detailed definitions, abstract syntax and encoding of 5G connection and mobility CHF CDRs parameters are specified in TS 32.298 [51].

6.2.2.2 5G connection and mobility resources attributes

The detailed definitions of resources attributes used for 5G connection and mobility charging are specified in TS 32.291 [58].

6.2.3 Detailed message format for converged charging

The following clause specifies per Operation Type the charging data that are sent by AMF for 5G connection and mobility converged charging.

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

Table 6.2.3.1 defines the basic structure of the supported fields in the Charging Data Request message for AMF converged charging.

Table 6.2.3.1: Supported fields in Charging Data Request message

Information Element	Functionality of AMF	Reg.	N2 cnt	Loc. Report.
Information Element	Supported Operation Types	I/T/E	E	E
Session Identifier		ITE	E	E
Subscriber Identifier		ITE	E	E
NF Consumer Identification		ITE	E	E
Charging Identifier		–	–	–
Invocation Timestamp		ITE	E	E
Invocation Sequence Number		ITE	E	E
Retransmission Indicator		–	–	–
One-time Event		–E	E	E
One-time Event Type		–E	E	E
Notify URI		–	–	–
Service Specification Information		ITE	E	E
Triggers		ITE	–	–
Multiple Unit Usage		ITE	–	–
AMF Identifier		ITE	E	E
AMF Charging Profile		I-E	E	E
Registration Charging Information
Registration Message type		ITE	–	–
User Information		ITE	–	–
UE 5GMM Core Network Capability		ITE	–	–
MICO Mode Indication		ITE	–	–
SMS Supported Indication		ITE	–	–
Access Type		ITE	–	–
RAT Type		ITE	–	–
TAI List		ITE	–	–
User Location Info		ITE	–	–
PSCell Information		ITE	–	–
UE Time Zone		ITE	–	–
Mobility Restrictions		ITE	–	–
Requested NSSAI		ITE	–	–
Allowed NSSAI		ITE	–	–
Rejected NSSAI		ITE	–	–
NSSAI mapping list		ITE	–	–
AMF UE NGAP ID		ITE	–	–
RAN UE NGAP ID		ITE	–	–
RAN Node Id		ITE	–	–
N2 Connection Charging Information
N2 Connection Message type		–	E	–
User Information		–	E	–
User Location Info		–	E	–
PSCell Information		–	E	–
UE Time Zone		–	E	–
RAT Type		–	E	–
AMF UE NGAP ID		–	E	–
RAN UE NGAP ID		–	E	–
RAN Node Id		–	E	–
Mobility Restrictions		–	E	–
Allowed NSSAI		–	E	–
RRC Establishment Cause		–	E	–
Location Reporting Charging information
Location reporting Message type		–	–	E
User Information		–	–	E
User Location Info		–	–	E
PSCell Information		–	–	E
UE Time Zone		–	–	E
Presence Reporting Area Information		–	–	E
RAT Type		–	–	E

Table 6.2.3.2 defines the basic structure of the supported fields in the Charging Data Response message for AMF converged charging.

Table 6.2.3.2: Supported fields in Charging Data Response message

Information Element

Functionality of AMF

Reg.

N2 cnt

Loc. Report.

Supported Operation Types

ITE

Session Identifier

ITE

Invocation Timestamp

ITE

Invocation Result

ITE

Invocation Sequence Number

ITE

Session Failover

I–

–

Triggers

–

Multiple Unit information

–

AMF Charging Profile

I-E

Location Reporting Charging information

Location reporting Message type

–

User Information

–

User Location Info

–

PSCell Information

–

UE Time Zone

–

Presence Reporting Area Information

–

RAT Type

–

6.3 Bindings for 5G connection and mobility converged charging

This mapping between the Information Elements, resource attributes and CHF CDR parameters for 5G connection and mobility converged charging is described in clause 7 of TS 32.291 [58].

Annex A (normative):
Charging Characteristics