8 Network Function services
23.3163GPPRelease 18TSWireless and wireline convergence access support for the 5G System (5GS)
8.0 General
This clause specifies the delta related to Network Function services description defined in TS 23.502 [3] clause 5.2. For 5G RG in FWA mode TS 23.502 [3] clause 5.2 applies.
8.1 UDM Services
8.1.1 Nudm_SubscriberDataManagement (SDM) Service
8.1.1.1 General
In addition to the Subscription data types used in the Nudm_SubscriberDataManagement Service, as defined in Table 5.2.3.3.1-1 of TS 23.502 [3], the additional data types defined in Table 8.1.1.1-1 below are applicable for RGs connected to 5GC via W-5GAN.
Table 8.1.1.1-1: Wireline access specific UE Subscription data types
|
Subscription data type |
Field |
Description |
|---|---|---|
|
Access and Mobility Subscription data (data needed for UE Registration and Mobility Management) |
RG Level Wireline Access Characteristics |
The RG level Wireline Access Characteristics parameter provides QoS information for the W-AGF, as defined in clause 4.5.1.2. This parameter is handled by the UDM as a transparent container. |
In the case of Wireline access, the Forbidden area information within Table 5.2.3.3.1-1 of TS 23.502 [3] may correspond to a (set of) allowed Global Line ID.
8.2 Void
8.3 BSF Services
8.3.1 General
The Nbsf_Management_Register/Deregister and Discovery service operations defined in TS 23.502 [3] are extended to allow registration/deregistration and discovery of the binding information when one or multiple /128 IPv6 address or UE IPv6 prefix shorter than /64 is/are assigned to a PDU session.
8.4 PCF Services
8.4.1 General
PCF services defined in TS 23.502 [3] apply with modifications described in this clause.
8.4.2 Npcf_SMPolicyControl
The Npcf_SMPolicyControl_Create and Npcf_SMPolicyControl_Update, defined in TS 23.502 [3], are extended to be able to provide PCF with one or multiple allocated /128 IPv6 UE address or with UE IPv6 prefix shorter than /64.
The Npcf_SMPolicyControl_Update, defined in TS 23.502 [3], is extended to be able to provide PCF with information on a released /128 IPv6 address or on a released UE IPv6 prefix shorter than /64.
8.4.3 Npcf_AMPolicyControl
8.4.3.1 Npcf_AMPolicyControl_Create service operation
The input data listed in clause 5.2.5.2.2 in TS 23.502 [3] apply when an AM Policy Association is created for a 5G-RG, except for the handling of RFSP information that applies only if a 5G RG is registered over 3GPP access.
The input information when the UE registers via W-5GAN includes the Access type set to non-3GPP access, the User Location Information including the GLI or the HFC node Id.
The output information when the UE registers via W-5GAN is defined in clause 9.5 and the Policy Control Request triggers applicable for for RG access via W-5GAN are defined in clause 9.5.3.
8.4.3.2 Npcf_AMPolicyControl_Update service operation
The input data listed in clause 5.2.5.2.5 in TS 23.502 [3] apply when an AM Policy Association is updated for a 5G-RG or for a FN-RG, except for the notification of UE location change (if an RG registers only on Wireline access), PRA changes or RFSP index change.
PCRT on UE location change apply when a 5G RG registers on a second access (5G RG using Hybrid access).
The output information when the UE registers via W-5GAN is defined in clause 9.5 and the Policy Control Request triggers applicable when RG accesses via W-5GAN are defined in clause 9.5.3.
The Access type change trigger requests the AMF to report a new Access Type and RAT Type to the PCF. When the UE simultaneous connects over both 3GPP and wireline non-3GPP access type, the AMF reports the list of Access Type and RAT combinations available in the UE access and mobility context in the Npcf_AMPolicyControl_Update service operation.
8.5 Nnef_IPTVconfiguration service
8.5.1 General
Service description: This service provides:
– Request authorization of NF Service Consumer requests.
– Request parameter mapping from NF Service Consumer requests to 5GC parameters and vice versa as described in clause 7.7.1.1.x
– NF Service Consumer request configuration of Multicast Access control list as described in clause 7.7.1.1.4.
8.5.2 Nnef_IPTVconfiguration_Create operation
Service operation name: Nnef_IPTVconfiguration_Create
Description: Authorize the request and forward the request for IPTV configuration information.
Inputs (required): AF Transaction Id, GPSI or External-Group-ID, application identifier, Multicast Access Control List.
The AF Transaction Id refers to the request.
Inputs (optional): DNN, S-NSSAI.
Outputs (required): Operation execution result indication.
Outputs (optional): None.
8.5.3 Nnef_IPTVconfiguration_Update operation
Service operation name: Nnef_IPTVconfiguration_Update
Description: Authorize the request and forward the request to update IPTV configuration information.
Inputs (required): AF Transaction Id.
The AF Transaction Id identifies the NF Service Consumer request to be updated.
Inputs (optional): Multicast Access Control List.
Outputs (required): Operation execution result indication.
Outputs (optional): None.
8.5.4 Nnef_IPTVconfiguration_Delete operation
Service operation name: Nnef_IPTVconfiguration_Delete
Description: Authorize the request and forward the request to delete(s) request for IPTV configuration information.
Inputs (required): AF Transaction Id.
The AF Transaction Id identifies the NF Service Consumer request for IPTV configuration to be deleted.
Inputs (optional): None.
Outputs (required): Operation execution result indication.
Outputs (optional): None.
8.6 UDR Services
8.6.1 Nudr_DataManagement (DM) Service
8.6.1.1 General
The UDM makes use of the Nudr_DM service to perform the mapping of the SUPI/IMSI associated with the Line ID or HFC-Identifier included in the SUCI.
In addition to the Subscription data types and corresponding Subscription Data keys used in the Nudr_DM_Service, as defined in TS 23.502 [3], the Subscription data types and corresponding Subscription data keys defined for the Nudr_DM Service in Table 8.6.1.1-1 and Table 8.6.1.1-2 are applicable for FN-RGs connected to 5GC.
Table 8.6.1.1-1: UE Subscription data types
|
Subscription data type |
Field |
Description |
|
Subscription identifier translation |
Other Identifier Of The Subscription (Global Line ID or Global Cable ID) |
Global Line ID or Global Cable ID included in SUCI provided by the W-AGF to the 5GC for FN-RG support and used as pseudonym of the SUPI. |
|
SUPI |
Corresponding SUPI |
Table 8.6.1.1-2: Data keys
|
Data Set |
Data Subset |
Data Key |
Data Sub Key |
|
Subscription Data |
Subscription identifier translation |
Global Line ID or Global Cable ID |
– |