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Content for  TS 23.502  Word version:  17.5.0

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5.2.3  UDM ServicesWord‑p. 567

5.2.3.1  GeneralWord‑p. 567

The following Table illustrates the UDM Services and Service Operations.
NF service Service Operations Operation Semantics Example Consumer(s)
Subscriber Data Management (SDM) GetRequest/ResponseAMF, SMF, SMSF, NEF, 5G DDNMF, TSCTSF
SubscribeSubscribe/NotifyAMF, SMF, SMSF, NEF, 5G DDNMF
UnsubscribeSubscribe/NotifyAMF, SMF, SMSF, NEF, 5G DDNMF
NotificationSubscribe/NotifyAMF, SMF, SMSF, NEF, GMLC, 5G DDNMF
ModifySubscriptionSubscribe/NotifyAMF, SMF, SMSF, NEF, 5G DDNMF
InfoRequest/ResponseAMF, NEF
UE Context Management (UECM) RegistrationRequest/ResponseAMF, SMF, SMSF
DeregistrationNotificationSubscribe/NotifyAMF
DeregistrationRequest/ResponseAMF, SMF, SMSF
GetRequest/ResponseNEF, SMSF, GMLC, NWDAF, SMF
UpdateRequest/ResponseAMF, SMF
PCscfRestorationSubscribe/NotifyAMF, SMF
UE Authentication GetRequest/ResponseAUSF
ResultConfirmationRequest/ResponseAUSF
EventExposure SubscribeSubscribe/NotifyNEF (Note), NWDAF
UnsubscribeNEF (Note), NWDAF
NotifyNEF (Note), NWDAF
ModifySubscriptionNEF (Note), NWDAF
Parameter Provision UpdateRequest/ResponseNEF, AMF
CreateRequest/ResponseNEF
DeleteRequest/ResponseNEF
GetRequest/ResponseNEF
NIDDAuthorisation GetRequest/ResponseNEF
UpdateNotifySubscribe/NotifyNEF
ServiceSpecificAuthorisation CreateRequest/ResponseNEF
UpdateNotifySubscribe/NotifyNEF
NOTE:
Other NFs are allowed to consume the service based on roaming agreement or operator policy.
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5.2.3.2  Nudm_UECM (UECM) serviceWord‑p. 567

5.2.3.2.1  Nudm_UECM_Registration service operationWord‑p. 567
Service operation name:
Nudm_UECM_Registration
Description:
Register UE's serving NF (if NF Type is AMF, SMSF, or NWDAF) or Session's serving NF (if NF Type is SMF) on the UDM. This operation implies the following:
  • The authorization, if applicable, to register the NF service consumer in UDM for the UE (e.g. based on UE roaming/RAT restrictions applicable when NF type is AMF). If this is successful, the NF service consumer is set as a serving NF for the corresponding UE/Session context.
  • When the consumer is AMF or SMF, it is implicitly subscribed to be notified when it is deregistered in UDM. This notification is done by means of Nudm_UECM_DeregistrationNotification operation.
  • When the consumer is AMF or SMF, it may optionally use this operation to subscribe to be notified of the need for P-CSCF Restoration. This notification is done by means of Nudm_UECM_PCscfRestoration operation. For more information regarding P-CSCF restoration procedures see TS 23.380.
Inputs, Required:
NF ID, SUPI, NF Type, Access Type (if NF Type is AMF, SMSF), RAT Type (if NF Type is AMF), PDU Session ID (if NF Type is SMF), Analytics ID(s) (if NF Type is NWDAF). If NF Type is SMF: DNN or Indication of Emergency Services, S-NSSAI, SMF+PGW-C FQDN for S5/S8 if the PDU Session supports EPS interworking, Serving PLMN ID. If NF type is AMF and Access Type is 3GPP access: Registration type. If NF type is SMSF: SMSF MAP address and/or Diameter address, Serving PLMN ID.
Inputs, Optional:
PEI (conditional, condition stated below), P-CSCF Restoration notification information, GUAMI, NID (e.g. if NF Type is AMF; see clause 5.18 of TS 23.501), backup AMF(s) (if NF Type is AMF), "Homogeneous Support of IMS Voice over PS Sessions" indication (if NF Type is AMF), UE SRVCC capability (if NF Type is AMF), indication that access is from ePDG (shall be sent if NF Type is SMF and PDU Session is setup via S2b), VGMLC ID (if NF type is AMF and information is available in AMF). Backup AMF(s) sent only once by the AMF to the UDM in its first interaction with the UDM, indication of no event exposure subscription information available (if NF Type is AMF). PCF ID selected for the PDN connection/PDU Session (If NF type is SMF), UE MINT support indicator, Disaster Roaming indicator indicating that Disaster Roaming service is applied.
Outputs, Required:
Result indication.
Outputs, Optional:
None.
If the PEI was retrieved by the AMF (either from the UE or another AMF), AMF shall provide it to the UDM using Nudm_UECM_Registration in order to ensure that the UDM always has the latest PEI available e.g. for reporting event Change of SUPI-PEI association.
See step 14a of clause 4.2.2.2.2 for an example usage of this service operation.
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5.2.3.2.2  Nudm_UECM_DeregistrationNotification service operationWord‑p. 568
Service operation name:
Nudm_UECM_DeregistrationNotification.
Description:
UDM notifies the NF consumer which has previously registered (using Nudm_UECM_Registration operation) has been deregistered in the UDM. As a result, the consumer is no longer registered in UDM as a serving NF for that UE.
Inputs, Required:
SUPI, Access Type, PDU Session ID, serving NF deregistration reason.
Inputs, Optional:
NF ID in the case of SM Context Transfer.
Outputs, Required:
None.
Outputs, Optional:
None.
See step 14d of clauses 4.2.2.2.2 and 4.26.5.3 for an example usage of this service operation. The serving NF deregistration reason tells the reason for sending the deregistration notification to the consumer NF.
The reason for AMF deregistration can be one of the following:
  • UE Initial Registration.
  • UE Registration area change.
  • Subscription Withdrawn.
  • 5GS to EPS Mobility.
The reason for SMF deregistration can be one of the following:
  • SMF Context Transfer.
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5.2.3.2.3  Nudm_UECM_Deregistration service operationWord‑p. 569
Service operation name:
Nudm_UECM_Deregistration.
Description:
The NF consumer requests the UDM to delete the information related to the NF in the UE context. When the consumer is AMF, this implies that the subscriptions to be notified when the NF is deregistered in UDM (i.e. Nudm_UECM_DeregistrationNotification) are also removed.
Inputs, Required:
SUPI, NF type, Access Type, PDU Session Id (if NF Type is SMF), Analytics ID(s) (if NF Type is NWDAF).
  • Access Type is included only when the NF type indicates AMF or SMSF.
Inputs, Optional:
None.
Outputs, Required:
Result Indication.
Outputs, Optional:
None.
5.2.3.2.4  Nudm_UECM_Get service operationWord‑p. 569
Service operation name:
Nudm_UECM_Get.
Description:
The NF consumer requests the UDM to get the NF ID or SMS address of the NF serving the UE.
Inputs, Required:
UE ID, NF Type.
Inputs, Optional:
Access Type, Analytics ID(s) (if NF Type is NWDAF), indication to retrieve PDU Session ID information.
  • Access Type is included only when the NF type indicates AMF or SMSF.
Outputs, Required:
NF ID or SMS address of the NF corresponding to the NF type requested by NF consumer. If the NF Type requested by NF consumer is AMF, the Access Type corresponding to the AMF is also included. Analytics ID(s), if NF Type is NWDAF.
Outputs, Optional:
SUPI or GPSI or both, PDU Session ID(s) already registered in the UDM for the UE.
For more information on retrieving PDU Session information, refer to clause 4.11.0a.5.
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5.2.3.2.5  Nudm_UECM_Update service operationWord‑p. 569
Service operation name:
Nudm_UECM_Update.
Description:
Consumer updates some UE related information (e.g. UE capabilities, Intersystem continuity context, SMF+PGW-C FQDN for S5/S8 interface, Analytics ID(s) in the case of NWDAF).
Inputs, Required:
NF ID, SUPI, NF type, UE context information.
Inputs, Optional:
"Homogeneous Support of IMS Voice over PS Sessions" indication (if NF Type is AMF), UE MINT support indicator (if NF Type is AMF), SMF+PGW-C FQDN for S5/S8 interface (if NF Type is SMF).
Outputs, Required:
Result Indication.
Outputs, Optional:
None.
5.2.3.2.6  Nudm_UECM_PCscfRestoration service operationWord‑p. 569
Service operation name:
Nudm_UECM_PCscfRestoration.
Description:
UDM notifies the AMF and/or SMF(s) which indicated during registration in UDM to be notified of the need for P-CSCF Restoration.
Inputs, Required:
SUPI.
Inputs, Optional:
None.
Outputs, Required:
None.
Outputs, Optional:
None.

5.2.3.3  Nudm_SubscriberDataManagement (SDM) ServiceWord‑p. 570

5.2.3.3.1  GeneralWord‑p. 570
Subscription data types used in the Nudm_SubscriberDataManagement Service are defined in Table 5.2.3.3.1-1 below.
Subscription data type Field Description
Access and Mobility Subscription data (data needed for UE Registration and Mobility Management)GPSI ListList of the GPSI (Generic Public Subscription Identifier) used both inside and outside of the 3GPP system to address a 3GPP subscription (see NOTE 9).
Internal Group ID-listList of the subscribed internal group(s) that the UE belongs to.
Subscribed UE-AMBRThe maximum aggregated uplink and downlink MBRs to be shared across all Non-GBR QoS Flows according to the subscription of the user.
Subscribed UE-Slice-MBR(s)List of maximum aggregated uplink and downlink MBRs to be shared across all GBR and Non-GBR QoS Flows related to the same S-NSSAI according to the subscription of the user. There is a single uplink and a single downlink value per S-NSSAI.
Subscribed S-NSSAIsThe Network Slices that the UE subscribes to. In the roaming case, it indicates the subscribed Network Slices applicable to the Serving PLMN (NOTE 11).
Default S-NSSAIsThe Subscribed S-NSSAIs marked as default S-NSSAI. In the roaming case, only those applicable to the Serving PLMN (NOTE 12).
S-NSSAIs subject to Network Slice-Specific Authentication and AuthorizationThe Subscribed S-NSSAIs marked as subject to NSSAA. When present, the GPSI list shall include at least one GPSI.
Network Slice Simultaneous Registration Group InformationOptionally, for each S-NSSAI in the Subscribed S-NSSAIs, one or more value of Network Slice Simultaneous Registration Group(s) (NOTE 11) associated with the S-NSSAI.
UE Usage TypeAs defined in clause 5.15.7.2 of TS 23.501.
RAT restriction3GPP Radio Access Technology(ies) not allowed the UE to access.
Forbidden areaDefines areas in which the UE is not permitted to initiate any communication with the network.
Service Area RestrictionIndicates Allowed Areas in which the UE is permitted to initiate communication with the network and Non-allowed areas in which the UE and the network are not allowed to initiate Service Request or SM signalling to obtain user services.
Core Network type restrictionDefines whether UE is allowed to connect to 5GC and/or EPC for this PLMN.
CAG informationThe CAG information includes Allowed CAG list and, optionally an indication whether the UE is only allowed to access 5GS via CAG cells as defined in clause 5.30.3 of TS 23.501.
CAG information Subscription Change IndicationWhen present, indicates to the serving AMF that the CAG information in the subscription data changed and the UE must be updated.
RFSP IndexAn index to specific RRM configuration in the NG-RAN.
Subscribed Periodic Registration TimerIndicates a subscribed Periodic Registration Timer value, which may be influenced by e.g. network configuration parameter as specified in clause 4.15.6.3a.
Subscribed Active TimeIndicates a subscribed active time value, which may be influenced by e.g. network configuration parameter as specified in clause 4.15.6.3a.
MPS priorityIndicates the user is subscribed to MPS as indicated in TS 23.501, clause 5.16.5.
MCX priorityIndicates the user is subscribed to MCX as indicated in TS 23.501, clause 5.16.6.
AMF-Associated Expected UE Behaviour parametersInformation on expected UE movement and communication characteristics. See clause 4.15.6.3
Steering of RoamingList of preferred PLMN/access technology combinations and/or Credentials Holder controlled prioritized lists of preferred SNPNs and GINs or HPLMN/Credentials Holder indication that no change of the above list(s) stored in the UE is needed (see NOTE 3).
Optionally includes an indication that the UDM requests an acknowledgement of the reception of this information from the UE.
SoR Update Indicator for Initial Registration An indication whether the UDM requests the AMF to retrieve SoR information when the UE performs Registration with NAS Registration Type "Initial Registration".
SoR Update Indicator for Emergency Registration An indication whether the UDM requests the AMF to retrieve SoR information when the UE performs Registration with NAS Registration Type "Emergency Registration".
Network Slicing Subscription Change IndicatorWhen present, indicates to the serving AMF that the subscription data for network slicing changed and the UE configuration must be updated.
Provide the UE with the full set of subscribed S-NSSAIsIndicates the AMF to provide the UE with the full set of subscribed S-NSSAIs even if they do not share a common NSSRG.
Tracing Requirements Trace requirements about a UE (e.g. trace reference, address of the Trace Collection Entity, etc.) is defined in TS 32.421.
Inclusion of NSSAI in RRC Connection Establishment AllowedWhen present, it is used to indicate that the UE is allowed to include NSSAI in the RRC connection Establishment in clear text for 3GPP access.
Service Gap TimeUsed to set the Service Gap timer for Service Gap Control (see clause 5.31.16 of TS 23.501).
Subscribed DNN listList of the subscribed DNNs for the UE (NOTE 1). Used to determine the list of LADN available to the UE as defined in clause 5.6.5 of TS 23.501.
UDM Update DataIncludes a set of parameters see clause 4.20.1 for parameters possible to deliver) to be delivered from UDM to the UE via NAS signalling as defined in clause 4.20 (NOTE 3).
Optionally includes an indication that the UDM requests an acknowledgement of the reception of this information from the UE and an indication for the UE to re-register.
NB-IoT UE priorityNumerical value used by the NG-RAN to prioritise between UEs accessing via NB-IoT.
Enhanced Coverage RestrictionSpecifies whether CE mode B is restricted for the UE, or both CE mode A and CE mode B are restricted for the UE, or both CE mode A and CE mode B are not restricted for the UE.
NB-IoT Enhanced Coverage RestrictionIndicates whether Enhanced Coverage for NB-IoT UEs is restricted or not.
IAB-Operation allowedIndicates that the subscriber is allowed for IAB-operation as specified in clause 5.35.2 of TS 23.501.
Charging Characteristics It contains the Charging Characteristics as defined in Annex A of TS 32.256.
This information, when provided, shall override any corresponding predefined information at the AMF.
Extended idle mode DRX cycle lengthIndicates a subscribed extended idle mode DRX cycle length value.
PCF Selection Assistance infolist of combination of DNN and S-NSSAI that indicates that the same PCF needs to be selected for AM Policy Control and SM Policy Control (NOTE 10).
AerialUESubscriptionInfoAerial UE Subscription Information. It contains an Indication on whether Aerial service for the UE is allowed or not.
Routing IndicatorRouting Indicator assigned to the SUPI.
Slice Selection Subscription data (data needed for Slice Selection as described in clause 4.2.2.2.3 and in clause 4.11.0a.5)Subscribed S-NSSAIsThe Network Slices that the UE subscribes to. In roaming case, it indicates the subscribed network slices applicable to the serving PLMN. (NOTE 11).
Default S-NSSAIsThe Subscribed S-NSSAIs marked as default S-NSSAI. In the roaming case, only those applicable to the Serving PLMN. (NOTE 12).
S-NSSAIs subject to Network Slice-Specific Authentication and AuthorizationThe Subscribed S-NSSAIs marked as subject to NSSAA.
Network Slice Simultaneous Registration Group (NSSRG) InformationOptionally, for each S-NSSAI in the Subscribed S-NSSAIs, the one or more value of Network Slice Simultaneous Registration Group(s) (NOTE 11) associated with the S-NSSAI.
SMF Selection Subscription data (data needed for SMF Selection as described in clause 6.3.2 of TS 23.501)SUPIKey
SMF Selection Subscription data contains one or more S-NSSAI level subscription data:
S-NSSAIIndicates the value of the S-NSSAI.
Subscribed DNN listList of the subscribed DNNs for the UE (NOTE 1).
Default DNNThe default DNN if the UE does not provide a DNN (NOTE 2).
DNN(s) subject to aerial servicesList of DNNs that are used for aerial services (e.g. UAS operations or C2, etc.) as described in TS 23.256. (see NOTE 13).
LBO Roaming InformationIndicates whether LBO roaming is allowed per DNN, or per (S-NSSAI, subscribed DNN). (NOTE 16)
Interworking with EPS indication listIndicates whether EPS interworking is supported per (S-NSSAI, subscribed DNN).
Same SMF for Multiple PDU Sessions to the same DNN and S-NSSAIIndication whether the same SMF for multiple PDU Sessions to the same DNN and S-NSSAI is required.
Invoke NEF indicationWhen present, indicates, per S-NSSAI and per DNN, that NEF based infrequent small data transfer shall be used for the PDU Session (see NOTE 8).
SMF information for static IP address/prefixWhen static IP address/prefix is used, this may be used to indicate the associated SMF information per (S-NSSAI, DNN).
UE context in SMF dataSUPIKey
PDU Session Id(s)List of PDU Session Id(s) for the UE.
For emergency PDU Session Id:
Emergency InformationThe SMF+PGW-C FQDN for emergency session used for interworking with EPC
For each non-emergency PDU Session Id:
DNNDNN for the PDU Session.
SMFAllocated SMF for the PDU Session. Includes SMF IP Address and SMF NF Id.
SMF+PGW-C FQDNThe S5/S8 SMF+PGW-C FQDN used for interworking with EPS (see NOTE 5).
PCF IDThe PCF ID serving the PDU Session/PDN Connection.
SMS Management Subscription data (data needed by SMSF for SMSF Registration)SMS parametersIndicates SMS parameters subscribed for SMS service such as SMS teleservice, SMS barring list
Trace Requirements Trace requirements about a UE (e.g. trace reference, address of the Trace Collection Entity, etc.) is defined in TS 32.421.
This information is only sent to a SMSF in HPLMN.
Routing IndicatorRouting Indicator assigned to the SUPI.
SMS Subscription data (data needed in AMF)SMS SubscriptionIndicates subscription to any SMS delivery service over NAS irrespective of access type.
UE Context in SMSF dataSMSF InformationIndicates SMSF allocated for the UE, including SMSF address and SMSF NF ID.
Access Type3GPP or non-3GPP access through this SMSF
Session Management Subscription data (data needed for PDU Session Establishment)GPSI ListList of the GPSI (Generic Public Subscription Identifier) used both inside and outside of the 3GPP system to address a 3GPP subscription.
Internal Group ID-listList of the subscribed internal group(s) that the UE belongs to.
Trace Requirements Trace requirements about a UE (e.g. trace reference, address of the Trace Collection Entity, etc…) is defined in TS 32.421.
This information is only sent to a SMF in the HPLMN or one of its equivalent PLMN(s).
Routing IndicatorRouting Indicator assigned to the SUPI.
Session Management Subscription data contains one or more S-NSSAI level subscription data:
S-NSSAIIndicates the value of the S-NSSAI.
Subscribed DNN listList of the subscribed DNNs for the S-NSSAI (NOTE 1).
For each DNN in S-NSSAI level subscription data:
DNNDNN for the PDU Session.
Aerial service indicationIndicates whether the DNN is used for aerial services (e.g. UAS operations or C2, etc.) as described in TS 23.256.
Framed Route information Set of Framed Routes. A Framed Route refers to a range of IPv4 addresses / IPv6 Prefixes to associate with a PDU Session established on this (DNN, S-NSSAI).
See NOTE 4.
IP Index informationInformation used for selecting how the UE IP address is to be allocated (see clause 5.8.2.2.1 in TS 23.501).
Allowed PDU Session TypesIndicates the allowed PDU Session Types (IPv4, IPv6, IPv4v6, Ethernet and Unstructured) for the DNN, S-NSSAI. See NOTE 6.
Default PDU Session TypeIndicates the default PDU Session Type for the DNN, S-NSSAI.
Allowed SSC modesIndicates the allowed SSC modes for the DNN, S-NSSAI.
Default SSC modeIndicate the default SSC mode for the DNN, S-NSSAI.
Interworking with EPS indicationIndicates whether interworking with EPS is supported for this DNN and S-NSSAI.
5GS Subscribed QoS profileThe QoS Flow level QoS parameter values (5QI and ARP) for the DNN, S-NSSAI (see clause 5.7.2.7 of TS 23.501).
Charging CharacteristicsIt contains Charging Characteristics as defined in Annex A clause A.1 of TS 32.255. This information, when provided, shall override any corresponding predefined information at the SMF.
Subscribed-Session-AMBRThe maximum aggregated uplink and downlink MBRs to be shared across all Non-GBR QoS Flows in each PDU Session, which are established for the DNN, S-NSSAI.
Static IP address/prefixIndicate the static IP address/prefix for the DNN, S-NSSAI.
User Plane Security PolicyIndicates the security policy for integrity protection and encryption for the user plane.
PDU Session continuity at inter RAT mobilityProvides for this DDN, S-NSSAI how to handle a PDU Session when UE the moves to or from NB-IoT. Possible values are: maintain the PDU session; disconnect the PDU session with a reactivation request; disconnect PDU session without reactivation request; or to leave it to local VPLMN policy.
NEF Identity for NIDDWhen present, indicates, per S-NSSAI and per DNN, the identity of the NEF to anchor Unstructured PDU Session. When not present for the S-NSSAI and DNN, the PDU session terminates in UPF (see NOTE 8).
NIDD informationInformation such as External Group Identifier, External Identifier, MSISDN, or AF Identifier used for SMF-NEF Connection.
SMF-Associated Expected UE Behaviour parametersParameters on expected characteristics of a PDU Session their corresponding validity times as specified in clause 4.15.6.3.
Suggested number of downlink packets Parameters on expected PDU session characteristics as specified in clauses 4.15.3.2.3b and 4.15.6.3a.
ATSSS informationIndicates whether MA-PDU session establishment is allowed.
Secondary authentication indicationIndicates that whether the Secondary authentication/authorization (as defined in clause 5.6 of TS 23.501) is required for PDU Session Establishment as specified in clause 4.3.2.3. (see NOTE 14)
DN-AAA Server UE IP address allocation indicationIndicates that whether the SMF is required to request the UE IP address from the DN-AAA Server (as defined in clause 5.6 of TS 23.501) for PDU Session Establishment as specified in clause 4.3.2.3.
DN-AAA Server addressing informationIf at least one of secondary DN-AAA authentication, DN-AAA authorization or DN-AAA UE IP address allocation is required by subscription data, the subscription data may also contain DN-AAA Server addressing information.
Edge Configuration Server Address Configuration InformationConsists of one or more ECS Configuration Information as defined in clause 8.3.2.1 of TS 23.558.
API based secondary authentication indicationIndicates that whether the API based Secondary authentication/authorization (as defined in clause 5.2.3 of TS 23.256) is required for PDU Session Establishment as specified in clause 4.3.2.3. (see NOTE 14).
UE authorization for EAS discovery via EASDFIndicates whether the UE is authorized to use 5GC assisted EAS discovery via EASDF (as defined in TS 23.548).
Identifier translationSUPICorresponding SUPI for input GPSI.
(Optional) MSISDNCorresponding GPSI (MSISDN) for input GPSI (External Identifier). This is optionally provided for legacy SMS infrastructure not supporting MSISDN-less SMS. The presence of an MSISDN should be interpreted as an indication to the NEF that MSISDN shall be used to identify the UE when sending the SMS to the SMS-SC via T4.
GPSICorresponding GPSI for input SUPI and associated application information (e.g. Application Port ID) (NOTE 15).
Intersystem continuity Context(DNN, PGW FQDN) listFor each DNN, indicates the SMF+PGW-C which support interworking with EPC.
LCS privacy (data needed by GMLC)LCS privacy profile dataProvides information for LCS privacy classes and Location Privacy Indication (LPI) as defined in clause 5.4.2 in TS 23.273
LCS mobile origination (data needed by AMF)LCS Mobile Originated DataWhen present, indicates to the serving AMF which LCS mobile originated services are subscribed as defined in clause 7.1 in TS 23.273.
User consent (see TS 23.288)User consent for UE data collectionIndicates whether the user has given consent for collecting, distributing and analysing UE related data. User consent is provided per purpose (e.g. analytics, model training).
UE reachabilityUE reachability informationProvides, per PLMN, the list of NF IDs or the list of NF sets or the list of NF types authorized to request notification for UE's reachability (NOTE 7).
V2X Subscription data (see TS 23.287)NR V2X Services AuthorizationIndicates whether the UE is authorized to use the NR sidelink for V2X services as Vehicle UE, Pedestrian UE, or both.
LTE V2X Services AuthorizationIndicates whether the UE is authorized to use the LTE sidelink for V2X services as Vehicle UE, Pedestrian UE, or both.
NR UE-PC5-AMBRAMBR of UE's NR sidelink (i.e. PC5) communication for V2X services.
LTE UE-PC5-AMBRAMBR of UE's LTE sidelink (i.e. PC5) communication for V2X services.
ProSe Subscription data (see TS 23.304)ProSe Service AuthorizationIndicates whether the UE is authorized to use ProSe Direct Discovery, ProSe Direct Communication, or both and whether the UE is authorized to use or serve as a ProSe UE-to-Network Relay.
ProSe NR UE-PC5-AMBRAMBR of UE's NR sidelink (i.e. PC5) communication for ProSe services.
MBS Subscription data (see TS 23.247)MBS Service AuthorizationIndicates whether the UE is authorized to use Multicast MBS service. May also indicate the multicast MBS Session which the UE is allowed to join if the UE is authorized to use multicast MBS Service.
NOTE 1:
The Subscribed DNN list can include a wildcard DNN.
NOTE 2:
The default DNN shall not be a wildcard DNN.
NOTE 3:
The Steering of Roaming information and UDM Update Data are protected using the mechanisms defined in TS 33.501.
NOTE 4:
Framed Route information and Framed Route(s) are defined in TS 23.501.
NOTE 5:
Depending on the scenario PGW-C FQDN may be for S5/S8, or for S2b (ePDG case).
NOTE 6:
The Allowed PDU Session Types configured for a DNN which supports interworking with EPC should contain only the PDU Session Type corresponding to the PDN Type configured in the APN that corresponds to the DNN.
NOTE 7:
Providing a list of NF types or a list of NF sets may be more appropriate for some deployments, e.g. in highly dynamic NF lifecycle management deployments.
NOTE 8:
For a S-NSSAI and a DNN, the "Invoke NEF Indication" shall be present in the SMF selection subscription data if and only if the "NEF Identity for NIDD" Session Management Subscription Data includes a NEF Identity. When the "NEF Identity for NIDD" Session Management Subscription Data includes a NEF Identity for a S-NSSAI and DNN, the "Control Plane Only Indicator" will always be set for PDU Sessions to this S-NSSAI and DNN (see clause 5.31.4.1 of TS 23.501).
NOTE 9:
When multiple GPSIs are included in the GPSI list, any GPSI in the list can be used in NSSAA procedures.
NOTE 10:
The same PCF can be selected to serve the UE and to serve one or multiple PDU sessions, each of them is indicated in the list of S-NSSAI, DNN combinations in the PCF Selection Assistance Info. Providing one combination of DNN and S-NSSAI in the PCF Selection Assistance Info is assumed if interworking with EPS is needed. In case multiple PDU sessions to one DNN, S-NSSAI are established in EPS, it is appropriate to select same PCF by configuration or by using existing method, e.g. same PCF selection in usage monitoring.
NOTE 11:
If Network Slice Simultaneous Registration Group information is present and the VPLMN does not support the subscription-based restrictions to simultaneous registration of network slices, the subset of the Subscribed S-NSSAIs defined in clause 5.15.12 of TS 23.501, are included, without providing the NSSRG information.
NOTE 12:
The Default S-NSSAIs (if more than one is present) are associated with common NSSRG values if NSSRG information is present. At least one Default S-NSSAI shall be present in a subscription including NSSRG information.
NOTE 13:
When UUAA is performed in the AMF (as in clause 5.2.2 of TS 23.256) and UUAA-MM status is FAILED or PENDING, the AMF shall reject PDU session establishment requests from the UE for a DNN that is subject to aerial services.
NOTE 14:
For a DNN in S-NSSAI either a DN-AAA based secondary authentication, or an API based secondary authentication can be configured. When API based authentication of the PDU session is required, Secondary authentication indication shall not be present.
NOTE 15:
A GPSI may be associated with Application Port ID, MTC Provider Information and/or AF Identifier.
NOTE 16:
For non-roaming UE (e.g. accessing SNPN with CH credentials), LBO roaming information does not apply.
 
Subscription data type Field Description
Group Identifier translationExternal Group IdentifierIdentifies external group of UEs that the UE belongs to as defined in TS 23.682.
Internal Group IdentifierIdentifies internal group of UEs that the UE belongs to as defined in TS 23.501.
SUPI listCorresponding SUPI list for input External Group Identifier.
Group Data (NOTE 1)Internal Group IdentifierInternal identifiers of the group of UEs that the Group Data belongs to.
5G VN group dataThis optional information is used in the case of 5G VN related groups. It is defined in clause 4.15.6.3b.
NOTE 1:
Group Data within Group Subscription Data can be managed using the Shared Data feature defined in TS 29.503. In that case, Shared Data is identified using Shared Data identifier and can contain additional information than the one defined in this table.
 
At least a mandatory key is required for each Subscription Data Type to identify the corresponding data. Depending on the use case, for some Subscription Data Types it is possible to use one or multiple sub keys to further identify the corresponding data, as defined in Table 5.2.3.3.1-3 and Table 5.2.3.3.1-4 below.
Subscription data type Field Description
Access and Mobility Subscription dataSUPIServing PLMN ID and optionally NID
SMF Selection Subscription dataSUPIServing PLMN ID and optionally NID
UE context in SMF dataSUPIS-NSSAI
SMS Management Subscription dataSUPIServing PLMN ID and optionally NID
SMS Subscription dataSUPIServing PLMN ID and optionally NID
UE Context in SMSF dataSUPI-
Session Management Subscription dataSUPIS-NSSAI
DNN
Serving PLMN ID and optionally NID
Identifier translationGPSI-
SUPIApplication Port ID, MTC Provider Information, AF Identifier
Slice Selection Subscription dataSUPIServing PLMN ID and optionally NID
Intersystem continuity ContextSUPIDNN
LCS privacySUPI-
LCS mobile originationSUPI-
User consentSUPIPurpose
UE reachabilitySUPI-
V2X Subscription dataSUPI-
ProSe Subscription dataSUPI-
MBS Subscription dataSUPI-
 
Subscription data type Field Description
Group Identifier translationExternal Group Identifier
Internal Group Identifier
Group DataInternal Group Identifier
 
Wireline access specific subscription data parameters are specified in TS 23.316.
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5.2.3.3.2  Nudm_SDM_Get service operationWord‑p. 579
Service operation name:
Nudm_SDM_Get
Description:
Consumer NF gets the subscription data indicated by the subscription data type input from UDM. The UDM shall check the requested consumer is authorized to get the specific subscription data requested. In the case of NF consumer is SMF, the subscriber data may contain e.g. Allowed PDU Session Type(s), Allowed SSC mode(s), default 5QI/ARP, Subscribed S-NSSAI(s).
Inputs, Required:
NF ID, Subscription data type(s), Key for each Subscription data type(s).
Inputs, Optional:
Data Sub Key(s), SoR Update Indicator, AF Identifier (for AF authorisation by the UDM), Disaster Roaming Indicator indicating that Disaster Roaming service is applied.
If the AMF already has subscription data for the UE but the SoR Update Indicator in the UE context requires the AMF to retrieve SoR information depending on the NAS Registration Type ("Initial Registration" or "Emergency Registration"), the AMF shall include SoR update indicator in the Nudm_SDM_Get depending on the NAS Registration type.
Outputs, Required:
The consumer NF gets the requested subscription data.
Outputs, Optional:
None.
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5.2.3.3.3  Nudm_SDM_Notification service operationWord‑p. 579
Service or Service operation name:
Nudm_SDM_Notification
Description:
The UDM notifies NF consumer of the updates of Subscription Data indicated by the "subscription data Type" input and additional UDM-related parameters.
Inputs, Required:
Subscription data type(s), Key for each Subscription data type(s).
Inputs, Optional:
None.
Outputs, Required:
Result Indication.
The UDM invokes this service operation under the following cases:
  • When the subscription data is updated at the UDM, the updated subscription information is notified to the serving NF that has subscribed for the specific subscription data type to be notified.
  • When the UDM needs to deliver Steering of Roaming information to a UE.
  • When the UDM needs to deliver UDM Update Data to a UE (e.g. a new Routing Indicator or Default Configured NSSAI to the UE).
If the updated subscription information is related to session management the subscriber data may contain e.g. Allowed PDU Session Type(s), Allowed SSC mode(s), default 5QI/ARP.
Outputs, Optional:
Redirection information.
If the NF consumer is AMF and if the result of the service operation fails, AMF shall set corresponding cause value in result indication which can be used by the UDM for further action. If the related UE is not served by the AMF and the AMF knows which AMF is serving the UE, the AMF provides redirection information which can be used by the UDM to resend UE related message to the AMF that serves the UE.
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5.2.3.3.4  Nudm_SDM_Subscribe service operationWord‑p. 580
Service operation name:
Nudm_SDM_Subscribe
Description:
The NF consumer subscribes for updates to Subscription Data indicated by the 'subscription data type' input. The UDM shall check the requested consumer is authorized to subscribe to requested updates.
Inputs, Required:
Subscription data type(s), Key for each Subscription data type(s).
Inputs, Optional:
Data Sub Key(s), Immediate Report Indication, Disaster Roaming Indicator indicating that Disaster Roaming service is applied.
Outputs, Required:
None.
Outputs, Optional:
Subscription Data.
5.2.3.3.5  Nudm_SDM_Unsubscribe service operationWord‑p. 580
Service operation name:
Nudm_SDM_Unsubscribe
Description:
The NF consumer unsubscribes from updates to Subscription Data indicated by the 'subscription data type input.
Inputs, Required:
Subscription data type(s), Key for each Subscription data type(s).
Inputs, Optional:
If the NF type is SMF: DNN, S-NSSAI.
Outputs, Required:
None.
Outputs, Optional:
None.
5.2.3.3.6  Nudm_SDM_Info service operationWord‑p. 580
Service operation name:
Nudm_SDM_Info
Description:
Consumer NF provides UDM with information about the status of the subscription data management procedures. This service operation is used for:
  • providing acknowledgement from the UE to UDM about successful delivery of Steering of Roaming information via the AMF as defined in TS 23.122.
  • providing acknowledgement from the UE to UDM about successful Network Slicing Configuration subsequent to delivery of the Network Slicing Subscription Change Indication via the AMF.
  • providing acknowledgement from the UE to UDM about successful delivery of UDM Update Data via the AMF as defined in clause 4.20.
  • providing acknowledgement from the AMF to UDM that the delivery of the UDM Update Data has failed as defined in clause 4.20.
Inputs, Required:
SUPI, Info (e.g. UE acknowledgment of SoR information from UDM via AMF, UE acknowledgement of successful Network Slicing Configuration subsequent to delivery of the Network Slicing Subscription Change Indication via the AMF, UE acknowledgment of UDM Update Data from UDM via AMF, failed transmission of UDM Update Data from UDM via AMF, failed transmission of SoR information from UDM via AMF).
Inputs, Optional:
None.
Outputs, Required:
None.
Outputs, Optional:
None.
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5.2.3.3.7Void
5.2.3.3.8  Nudm_SDM_ModifySubscription service operation |R17|Word‑p. 581
Service operation name:
Nudm_SDM_ModifySubscription
Description:
The NF consumer requests to modify an existing subscription to notifications of data changes.
Inputs, Required:
Subscription Correlation ID, SUPI.
Inputs, Optional:
Expiry time, Monitored resource URIs.
Outputs, Required:
None.
Outputs, Optional:
Subscription Data.

5.2.3.4  Nudm_UEAuthentication ServiceWord‑p. 581

5.2.3.4.1  GeneralWord‑p. 581
This service is used by the requester NF to get authentication data and provide UDM with the result of the authentication procedure success. In the case of SNPN, this service may be used to instruct the AUSF to execute authentication towards AAA-S.
5.2.3.4.2  Nudm_UEAuthentication_Get service operationWord‑p. 581
See TS 33.501.
5.2.3.4.3  Nudm_UEAuthentication_ResultConfirmation service operationWord‑p. 581
See TS 33.501.

5.2.3.5  Nudm_EventExposure serviceWord‑p. 581

5.2.3.5.1  GeneralWord‑p. 581
5.2.3.5.2  Nudm_EventExposure_Subscribe service operationWord‑p. 581
Service operation name:
Nudm_EventExposure_Subscribe
Description:
The NF consumer subscribes to receive an event.
NF Consumers:
NEF.
Inputs, Required:
Target of Event Reporting: UE(s) ID (SUPI or GPSI, Internal Group Identifier or External Group Identifier, or indication that any UE is targeted), Event filter containing the Event Id(s) (see clause 4.15.3.1) and Event Reporting Information defined in Table 4.15.1-1.
Inputs, Optional:
Expiry time, DNN, S-NSSAI, traffic descriptor identifying the source of the downlink IP or Ethernet traffic (for Availability after DDN Failure and downlink data delivery status events), MTC Provider Information, list of group member UE(s) whose subscription to event notification(s) are removed or added for a group-based event notification subscription, operation indication (cancellation or addition), Idle Status Indication request (if UE reachability or Availability after DDN failure reporting is requested).
For configuration of monitoring events applicable to both EPC and 5GC, a combined SCEF+NEF indicates that the monitoring event is also applicable to EPC (i.e. the event must be reported both by 5GC and EPC) and may include a SCEF address (i.e. if the event needs to be configured in a serving node in the EPC and the corresponding notification needs to be sent directly to the SCEF).
Outputs, Required:
Operation execution result indication. When the subscription is accepted: Subscription Correlation ID, Expiry time (required if the subscription can be expired based on the operator's policy).
Outputs, Optional:
First corresponding event report is included, if corresponding information is available (see clause 4.15.1), Number of UE if the External Group Identifier and Maximum Number of Reports are included in the inputs.
Number of UEs indicates the number of UEs within the group identified by the External Group Identifier. The NEF uses this value to determine whether the monitoring event has been reported for all group member UEs.
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5.2.3.5.3  Nudm_EventExposure_Unsubscribe service operationWord‑p. 582
Service operation name:
Nudm_EventExposure_Unsubscribe
Description:
the consumer deletes the subscription of an event if already defined in UDM.
Inputs, Required:
Subscription Correlation ID.
Outputs, Required:
Operation execution result indication.
5.2.3.5.4  Nudm_EventExposure_Notify service operationWord‑p. 582
Service operation name:
Nudm_EventExposure_Notify
Description:
UDM reports the event to the consumer that has previously subscribed.
Inputs, Required:
Event ID, Notification Correlation Information, time stamp.
Inputs, Optional:
Event specific parameters list, Event Removal Indication, list of group member UE(s) whose subscription to event notification(s) are removed from a group-based event notification subscription.
Outputs, Required:
None.
5.2.3.5.5  Nudm_EventExposure_ModifySubscription service operation |R17|Word‑p. 582
Service operation name:
Nudm_EventExposure_ModifySubscription
Description:
The NF consumer requests to modify an existing subscription to event notifications.
NF Consumers:
NEF.
Inputs, Required:
UE(s) ID (SUPI or GPSI, Internal Group Identifier or External Group Identifier, or any UE), Subscription Correlation ID, Modifications to the Event Subscription.
Inputs, Optional:
Outputs, Required:
Operation execution result indication.
Outputs, Optional:
None.

5.2.3.6  Nudm_ParameterProvision serviceWord‑p. 582

5.2.3.6.1  GeneralWord‑p. 582
This service is for allowing NEF to provision of information which can be used for the UE in 5GS.
Parameter Provision data types used in the Nudm_ParameterProvision Service are defined in Table 5.2.3.6.1-1 below.
Parameter Provision data type Description
Expected UE Behaviour parametersSee clause 4.15.6.3
Network Configuration parametersSee clause 4.15.6.3a
5G-VN group dataSee clause 4.15.6.3b
5G VN group membership management parametersSee clause 4.15.6.3c.
Location Privacy Indication parameters Location Privacy Indication parameters of the "LCS privacy" Data Subset of the Subscription Data.
See clause 5.2.3.3.1 and clause 7.1 of TS 23.273.
Enhanced Coverage Restriction InformationSee clause 4.27.1 and clause 5.31.12 of TS 23.501.
ECS Address Configuration InformationSee clause 4.15.6.3d.
Multicast MBS group membership management parametersSee clause 7.2.9 of TS 23.247.
MBS Session Authorization informationSee clause 7.2.9 of TS 23.247.
 
At least a mandatory key is required for each Parameter Provision Data Type to identify the corresponding data as defined in Table 5.2.3.6.1-2.
Parameter Provision Data Types Data Key Data Sub Key
Expected UE Behaviour parametersGPSI or External Group ID
Network Configuration parametersGPSI
5G-VN group dataExternal Group Identifier
5G VN group membership management parametersExternal Group Identifier
Location Privacy Indication parametersGPSI
Enhanced Coverage Restriction InformationGPSI
ECS Address Configuration InformationGPSI or External Group ID or any UE
Multicast MBS group membership management parametersExternal Group Identifier
MBS Session Authorization informationExternal Group ID
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5.2.3.6.2  Nudm_ParameterProvision_Update service operationWord‑p. 583
Service operation name:
Nudm_ParameterProvision_Update.
Description:
The consumer updates the UE related information (e.g. Expected UE Behaviour, Network Configuration parameters, Location Privacy Indication parameters, Enhanced Coverage Restriction Information, ECS Address Configuration Information), 5G VN group related information (5G VN group data, 5G VN membership management), or Multicast MBS group related information (MBS Session Authorization, Multicast MBS group membership management).
Inputs, Required:
AF Identifier, Transaction Reference ID(s).
Inputs, Optional:
GPSI or SUPI, External Group ID, at least one of the Expected UE Behaviour parameters or at least one of the Network Configuration parameters or 5G VN group related information, MTC Provider Information, Validity Time or Location Privacy Indication parameters or Enhanced Coverage Restriction Information or ECS Address Configuration Information, or Multicast MBS group related information.
Outputs, Required:
Transaction Reference ID(s), Operation execution result indication.
Outputs, Optional:
Transaction specific parameters, if available.
For Multicast MBS group related information, refer to TS 23.247.
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5.2.3.6.3  Nudm_ParameterProvision_Create service operation |R16|Word‑p. 584
Service operation name:
Nudm_ParameterProvision_Create
Description:
The consumer creates a Network Configuration with one or more parameters, a 5G VN group related information (e.g. 5G VN group data, 5G VN membership management), or Multicast MBS group related information.
Inputs, Required:
AF Identifier, Transaction Reference ID(s).
Inputs, Optional:
GPSI, External Group ID, one or multiple Network Configuration parameters, or ECS Address Configuration Information, or for 5G VN group creation, External Group ID and 5G VN group related information, MTC Provider Information, or for Multicast MBS group creation and related information.
Outputs, Required:
Transaction Reference ID(s), Operation execution result indication.
Outputs, Optional:
Transaction specific parameters, if available; Internal Group ID if the inputs include a new 5G VN configuration.
For Multicast MBS group related information, refer to TS 23.247.
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5.2.3.6.4  Nudm_ParameterProvision_Delete service operation |R16|Word‑p. 584
Service operation name:
Nudm_ParameterProvision_Delete
Description:
The consumer deletes one or more previously created Network Configuration parameters, or a 5G VN group, or ECS Address Configuration Information.
Inputs, Required:
AF Identifier, Transaction Reference ID(s).
Inputs, Optional:
GPSI, External Group ID, for 5G VN group deletion or for Multicast MBS group deletion or Network Configuration of Parameters.
Outputs, Required:
Transaction Reference ID(s), Operation execution result indication.
Outputs, Optional:
None.
5.2.3.6.5  Nudm_ParameterProvision_Get service operation |R16|Word‑p. 584
Service operation name:
Nudm_ParameterProvision_Get
Description:
The consumer gets the UE related information (e.g. Expected UE Behaviour, Network Configuration parameters).
Inputs, Required:
GPSI, AF Identifier, requested information (e.g. Expected UE Behaviour, Network Configuration parameters).
Inputs, Optional:
None.
Outputs, Required:
Requested data, Operation execution result indication.
Outputs, Optional:
None.

5.2.3.7  Nudm_NIDDAuthorisation service |R16|Word‑p. 584

5.2.3.7.1  GeneralWord‑p. 584
5.2.3.7.2  Nudm_NIDDAuthorisation_Get service operationWord‑p. 585
Service operation name:
Nudm_NIDDAuthorisation_Get
Description:
The consumer requests authorisation for NIDD Configuration.
Inputs, Required:
GPSI or External Group Identifier, DNN, S-NSSAI, MTC Provider Information, Update Notification Address.
Inputs, Optional:
NIDD Duration.
Outputs, Required:
Single value or list of (SUPI, GPSI), Result.
Outputs, Optional:
NIDD Duration.
5.2.3.7.3  Nudm_NIDDAuthorisation_UpdateNotify service operationWord‑p. 585
Service operation name:
Nudm_NIDDAuthorisation_UpdateNotify
Description:
This service operation is used by the UDM to notify the NIDD Authorization Update to NF consumer.
Inputs, Required:
SUPI, GPSI, DNN, S-NSSAI, Result.
Inputs, Optional:
Cause (e.g. subscription withdrawal, DNN used for NIDD service is removed from the UE subscription), NIDD Duration.
Outputs, Required:
None.
5.2.3.7.4Void
5.2.3.7.5Void

5.2.3.8  Nudm_ServiceSpecificAuthorisation service |R17|Word‑p. 585

5.2.3.8.1  GeneralWord‑p. 585
Service description:
This service is for authorisation of a specific service configuration.
5.2.3.8.2  Nudm_ServiceSpecificAuthorisation_Create service operationWord‑p. 585
Service operation name:
Nudm_ServiceSpecificAuthorisation_Create
Description:
The consumer requests authorisation for a specific service configuration.
Inputs, Required:
GPSI, External Group Id, DNN, S-NSSAI, Service Type (e.g. AF guidance for URSP).
Inputs, Optional:
MTC Provider Information, Update Notification address.
Outputs, Required:
Authorisation result indication.
Outputs, Optional:
Validity time.
5.2.3.8.3  Nudm_ServiceSpecificAuthorisation_UpdateNotify service operationWord‑p. 585
Service operation name:
Nudm_ServiceSpecificAuthorisation_UpdateNotify
Description:
This service operation is used by the UDM to notify a Service Specific Authorisation Update to NF consumer.
Inputs, Required:
GPSI, External Group Id, Result.
Inputs, Optional:
DNN, S-NSSAI.
Outputs, Required:
Cause (e.g. authorisation revoked).

5.2.4  5G-EIR ServicesWord‑p. 586

5.2.4.1  GeneralWord‑p. 586

The following table illustrates the 5G-EIR Service.
NF service Service Operations Operation Semantics Example Consumer(s)
N5g-eir_EquipmentIdentityCheckGetRequest/ResponseAMF
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5.2.4.2  N5g-eir_EquipmentIdentityCheck serviceWord‑p. 586

5.2.4.2.1  GeneralWord‑p. 586
Service description:
This service is provided by the 5G-EIR to check the PEI and check whether the PEI is in the prohibited list or not. The service can be consumed by AMF. The service operations provided within this service are depicted as below.
5.2.4.2.2  N5g-eir_EquipmentIdentityCheck_Get service operationWord‑p. 586
Service operation name:
N5g-eir_EquipmentIdentityCheck_Get
Description:
Check the PEI and determine whether the subscriber is allowed to use the equipment.
Inputs, Required:
PEI, SUPI.
Inputs, Optional:
none
Outputs, Required:
PEI checking result
Outputs, Optional:
none

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