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3GPP TS 23.502 version 15.2.0 Release 15.pdf
Intellectual Property Rights
Foreword
Modal verbs terminology
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Abbreviations
4 System procedures
4.1 General
4.2 Connection, Registration and Mobility Management procedures
4.2.1 General
4.2.2 Registration Management procedures
4.2.2.1 General
4.2.2.2 Registration procedures
4.2.2.2.1 General
4.2.2.2.2 General Registration
4.2.2.2.3 Registration with AMF re-allocation
4.2.2.3 Deregistration procedures
4.2.2.3.1 General
4.2.2.3.2 UE-initiated Deregistration
4.2.2.3.3 Network-initiated Deregistration
4.2.3 Service Request procedures
4.2.3.1 General
4.2.3.2 UE Triggered Service Request
4.2.3.3 Network Triggered Service Request
4.2.4 UE Configuration Update
4.2.4.1 General
4.2.4.2 UE Configuration Update procedure for access and mobility management related parameters
4.2.4.3 UE Configuration Update procedure for transparent UE Policy delivery
4.2.5 Reachability procedures
4.2.5.1 General
4.2.5.2 UE Reachability Notification Request procedure
4.2.5.3 UE Activity Notification procedure
4.2.6 AN Release
4.2.7 N2 procedures
4.2.7.1 N2 Configuration
4.2.7.2 NGAP UE-TNLA-binding related procedures
4.2.7.2.1 Creating NGAP UE-TNLA-bindings during Registration and Service Request
4.2.7.2.2 Creating NGAP UE-TNLA-bindings during handovers
4.2.7.2.3 Re-Creating NGAP UE-TNLA-bindings subsequent to NGAP UE-TNLA-binding release
4.2.7.2.4 NGAP UE-TNLA-binding update procedure
4.2.7.2.5 NGAP UE-TNLA-binding per UE Release procedure
4.2.7.3 AMF Failure or Planned Maintenance handling procedure
4.2.8 Void
4.2.8a UE Capability Match Request procedure
4.3 Session Management procedures
4.3.1 General
4.3.2 PDU Session Establishment
4.3.2.1 General
4.3.2.2 UE Requested PDU Session Establishment
4.3.2.2.1 Non-roaming and Roaming with Local Breakout
4.3.2.2.2 Home-routed Roaming
4.3.2.2.3 SMF selection
4.3.2.3 Secondary authorization/authentication by an DN-AAA server during the PDU Session establishment
4.3.3 PDU Session Modification
4.3.3.1 General
4.3.3.2 UE or network requested PDU Session Modification (non-roaming and roaming with local breakout)
4.3.3.3 UE or network requested PDU Session Modification (home-routed roaming)
4.3.4 PDU Session Release
4.3.4.1 General
4.3.4.2 UE or network requested PDU Session Release for Non-Roaming and Roaming with Local Breakout
4.3.4.3 UE or network requested PDU Session Release for Home-routed Roaming
4.3.5 Session continuity, service continuity and UP path management
4.3.5.1 Change of SSC mode 2 PDU Session Anchor with different PDU Sessions
4.3.5.2 Change of SSC mode 3 PDU Session Anchor with multiple PDU Sessions
4.3.5.3 Change of SSC mode 3 PDU Session Anchor with IPv6 Multi-homed PDU Session
4.3.5.4 Addition of additional PDU Session Anchor and Branching Point or UL CL
4.3.5.5 Removal of additional PDU Session Anchor and Branching Point or UL CL
4.3.5.6 Change of additional PDU Session Anchor for IPv6 multi-homing or UL CL
4.3.5.7 Simultaneous change of Branching Point or UL CL and additional PSA for a PDU Session
4.3.6 Application Function influence on traffic routing
4.3.6.1 General
4.3.6.2 Processing AF requests to influence traffic routing for Sessions not identified by an UE address
4.3.6.3 Notification of User Plane Management Events
4.3.6.4 Transferring an AF request targeting an individual UE address to the relevant PCF
4.3.7 CN-initiated selective deactivation of UP connection of an existing PDU Session
4.4 SMF and UPF interactions
4.4.1 N4 session management procedures
4.4.1.1 General
4.4.1.2 N4 Session Establishment procedure
4.4.1.3 N4 Session Modification procedure
4.4.1.4 N4 Session Release procedure
4.4.2 N4 Reporting Procedures
4.4.2.1 General
4.4.2.2 N4 Session Level Reporting Procedure
4.4.3 N4 Node Level Procedures
4.4.3.1 N4 Association Setup Procedure
4.4.3.2 N4 Association Update Procedure
4.4.3.3 N4 Association Release Procedure
4.4.3.4 N4 Report Procedure
4.4.3.5 N4 PFD management Procedure
4.4.4 SMF Pause of Charging procedure
4.5 User Profile management procedures
4.5.1 Subscriber Data Update Notification to AMF
4.5.2 Session Management Subscriber Data Update Notification to SMF
4.5.3 Purge of subscriber data in AMF
4.6 Security procedures
4.7 ME Identity check procedure
4.8 RAN-CN interactions
4.8.1 Connection Inactive procedure
4.8.2 Connection Resume procedure
4.8.3 N2 Notification procedure
4.9 Handover procedures
4.9.1 Handover procedures in 3GPP access
4.9.1.1 General
4.9.1.2 Xn based inter NG-RAN handover
4.9.1.2.1 General
4.9.1.2.2 Xn based inter NG-RAN handover without User Plane function re-allocation
4.9.1.2.3 Xn based inter NG-RAN handover with insertion of intermediate UPF
4.9.1.2.4 Xn based inter NG-RAN handover with re-allocation of intermediate UPF
4.9.1.3 Inter NG-RAN node N2 based handover
4.9.1.3.1 General
4.9.1.3.2 Preparation phase
4.9.1.3.3 Execution phase
4.9.1.4 Inter NG-RAN node N2 based handover, Cancel
4.9.2 Handover of a PDU Session procedure between 3GPP and untrusted non-3GPP access
4.9.2.1 Handover of a PDU Session procedure from untrusted non-3GPP to 3GPP access (non-roaming and roaming with local breakout
4.9.2.2 Handover of a PDU Session procedure from 3GPP to untrusted non-3GPP access (non-roaming and roaming with local breakout
4.9.2.3 Handover of a PDU Session procedure from untrusted non-3GPP to 3GPP access (home routed roaming)
4.9.2.3.1 The target AMF is in the PLMN of the N3IWF
4.9.2.3.2 The target AMF is not in the PLMN of the N3IWF (i.e. N3IWF in HPLMN)
4.9.2.4 Handover of a PDU Session procedure from 3GPP to untrusted non-3GPP access (home routed roaming)
4.9.2.4.1 The selected N3IWF is in the registered PLMN
4.9.2.4.2 The UE is roaming and the selected N3IWF is in the home PLMN
4.10 NG-RAN Location reporting procedures
4.11 System interworking procedures with EPC
4.11.0 General
4.11.0a Impacts to EPS Procedues
4.11.0a.1 General
4.11.0a.2 Interaction with PCC
4.11.1 N26 based Interworking Procedures
4.11.1.1 General
4.11.1.2 Handover procedures
4.11.1.2.1 5GS to EPS handover using N26 interface
4.11.1.2.2 EPS to 5GS handover using N26 interface
4.11.1.2.3 Handover Cancel
4.11.1.3 Idle Mode Mobility procedures
4.11.1.3.1 General
4.11.1.3.2 5GS to EPS Idle mode mobility using N26 interface
4.11.1.3.3 EPS to 5GS Mobility Registration Procedure (Idle and Connected State) using N26 interface
4.11.1.4 Procedures for EPS bearer ID allocation
4.11.1.4.1 EPS bearer ID allocation
4.11.1.4.2 EPS bearer ID transfer
4.11.1.4.3 EPS bearer ID revocation
4.11.1.5 Impacts to EPS Procedures
4.11.1.5.1 General
4.11.1.5.2 E-UTRAN Initial Attach
4.11.1.5.3 Tracking Area Update
4.11.1.5.4 Session Management
4.11.1.5.5 5GS to EPS handover using N26 interface
4.11.2 Interworking procedures without N26 interface
4.11.2.1 General
4.11.2.2 5GS to EPS Mobility
4.11.2.3 EPS to 5GS Mobility
4.11.2.4 Impacts to EPS Procedures
4.11.2.4.1 E-UTRAN Attach
4.11.3 Handover procedures between EPS and 5GC-N3IWF
4.11.3.1 Handover from EPS to 5GC-N3IWF
4.11.3.2 Handover from 5GC-N3IWF to EPS
4.11.4 Handover procedures between EPC/ePDG and 5GS
4.11.4.1 Handover from EPC/ePDG to 5GS
4.11.4.2 Handover from 5GS to EPC/ePDG
4.12 Procedures for non-3GPP access
4.12.1 General
4.12.2 Registration via Untrusted non-3GPP Access
4.12.2.1 General
4.12.2.2 Registration procedure for untrusted non-3GPP access
4.12.2.3 Emergency registration for untrusted non-3GPP Access
4.12.3 Deregistration procedure for untrusted non-3gpp access
4.12.4 N2 procedures via Untrusted non-3GPP Access
4.12.4.1 Service Request procedures via Untrusted non-3GPP Access
4.12.4.2 Procedure for the UE context release in the N3IWF
4.12.4.3 CN-initiated selective deactivation of UP connection of an existing PDU Session associated with Untrusted non-3GPP Acc
4.12.5 UE Requested PDU Session Establishment via Untrusted non-3GPP Access
4.12.6 UE or Network Requested PDU Session Modification via Untrusted non-3GPP access
4.12.7 UE or network Requested PDU Session Release via Untrusted non-3GPP access
4.12.8 Mobility from a non-geographically selected AMF to a geographically selected AMF
4.13 Specific services
4.13.1 General
4.13.2 Application Triggering
4.13.2.1 General
4.13.2.2 The procedure of "Application Triggering" Service
4.13.3 SMS over NAS procedures
4.13.3.1 Registration procedures for SMS over NAS
4.13.3.2 Deregistration procedures for SMS over NAS
4.13.3.3 MO SMS over NAS in CM-IDLE (baseline)
4.13.3.4 Void
4.13.3.5 MO SMS over NAS in CM-CONNECTED
4.13.3.6 MT SMS over NAS in CM-IDLE state via 3GPP access
4.13.3.7 MT SMS over NAS in CM-CONNECTED state via 3GPP access
4.13.3.8 MT SMS over NAS via non-3GPP access
4.13.3.9 Unsuccessful Mobile terminating SMS delivery attempt
4.13.4 Emergency Services
4.13.4.1 General
4.13.4.2 Emergency Services Fallback
4.13.5 Location Services procedures
4.13.5.1 5GC-NI-LR Procedure
4.13.5.2 5GC-MT-LR Procedure without UDM Query
4.13.5.3 5GC-MT-LR Procedure
4.13.5.4 UE Assisted and UE Based Positioning Procedure
4.13.5.5 Network Assisted Positioning Procedure
4.13.5.6 Obtaining Non-UE Associated Network Assistance Data
4.13.5.7 Location continuity for Handover of an Emergency session from NG-RAN
4.13.6 Support of IMS Voice
4.13.6.1 EPS fallback for IMS voice
4.13.6.2 Inter RAT Fallback in 5GC for IMS voice
4.14 Support for Dual Connectivity
4.14.1 RAN Initiated QoS Flow Mobility
4.15 Network Exposure
4.15.1 General
4.15.2 External Exposure of Network Capabilities
4.15.3 Event Exposure using NEF
4.15.3.1 Monitoring Events
4.15.3.2 Information flows
4.15.3.2.1 AMF service operations information flow
4.15.3.2.2 UDM service operations information flow
4.15.3.2.3 NEF service operations information flow
4.15.3.2.4 Exposure with bulk subscription
4.15.4 Core Network Internal Event Exposure
4.15.4.1 General
4.15.4.2 Exposure of Mobility Events from AMF
4.15.5 Void
4.15.6 External Parameter Provisioning
4.15.6.1 General
4.15.6.2 NEF service operations information flow
4.15.6.3 Expected UE Behaviour parameters
4.16 Procedures and flows for Policy Framework
4.16.1 AM Policy Association Establishment
4.16.1.1 General
4.16.1.2 AM Policy Association Establishment with new Selected PCF
4.16.1.3 AM Policy Association Establishment with the old PCF
4.16.2 AM Policy Association Modification
4.16.2.0 General
4.16.2.1 AM Policy Association Modification initiated by the AMF
4.16.2.2 AM Policy Association Modification initiated by the PCF
4.16.3 AM Policy Association Termination
4.16.3.1 General
4.16.3.2 AMF-initiated AM Policy Association Termination
4.16.3.3 PCF-initiated Policy Association Termination
4.16.4 SM Policy Association Establishment
4.16.5 SM Policy Association Modification
4.16.5.0 General
4.16.5.1 SMF initiated SM Policy Association Modification
4.16.5.2 PCF initiated SM Policy Association Modification
4.16.6 SM Policy Association Termination
4.16.7 Negotiations for future background data transfer
4.16.7.1 General
4.16.7.2 Procedures for future background data transfer
4.16.8 Procedures on interaction between PCF and CHF
4.16.8.1 General
4.16.8.2 Initial Spending Limit Retrieval
4.16.8.3 Intermediate Spending Limit Report Retrieval
4.16.8.4 Final Spending Limit Report Retrieval
4.16.8.5 Spending Limit Report
4.16.9 Update of the subscription information in the PCF
4.16.10 Providing AF request to PCFs using UDR
4.17 Network Function Service Framework Procedure
4.17.1 NF service Registration
4.17.2 NF service update
4.17.3 NF service deregistration
4.17.4 NF/NF service discovery in the same PLMN
4.17.5 NF/NF service discovery across PLMNs
4.17.6 SMF Provisioning of available UPFs using the NRF
4.17.6.1 General
4.17.6.2 SMF provisioning of UPF instances using NRF
4.17.7 NF/NF service status subscribe/notify in the same PLMN
4.17.8 NF/NF service status subscribe/notify across PLMNs
4.18 Procedures for Management of PFDs
4.18.1 General
4.18.2 PFD management via NEF (PFDF)
4.18.3 PFD management in the SMF
4.18.3.1 PFD Retrieval by the SMF
4.18.3.2 Management of PFDs in the SMF
4.19 Network Data Analytics
4.19.1 Network data analytics Subscribe/Unsubscribe
4.19.2 Network data analytics Request
5 Network Function Service procedures
5.1 Network Function Service framework procedures
5.1.1 Network Function Service Discovery
5.2 Network Function services
5.2.1 General
5.2.2 AMF Services
5.2.2.1 General
5.2.2.2 Namf_Communication service
5.2.2.2.1 General
5.2.2.2.2 Namf_Communication_UEContextTransfer service operation
5.2.2.2.3 Namf_Communication_RegistrationCompleteNotify service operation
5.2.2.2.4 Namf_Communication_N1MessageNotify service operation
5.2.2.2.5 Namf_Communication_N1MessageSubscribe service operation
5.2.2.2.6 Namf_Communication_N1MessageUnSubscribe service operation
5.2.2.2.7 Namf_Communication_N1N2MessageTransfer service operation
5.2.2.2.7A Namf_Communication_N1N2TransferFailureNotification service operation
5.2.2.2.8 Namf_Communication_N2InfoSubscribe service operation
5.2.2.2.9 Namf_Communication_N2InfoUnsubscribe service operation
5.2.2.2.10 Namf_Communication_N2InfoNotify service operation
5.2.2.2.11 Namf_Communication_CreateUEContext service operation
5.2.2.2.12 Namf_Communication_ReleaseUEContext service operation
5.2.2.2.13 Namf_Communication_EBIAssignment service operation
5.2.2.3 Namf_EventExposure service
5.2.2.3.1 General
5.2.2.3.2 Namf_EventExposure_Subscribe service operation
5.2.2.3.3 Namf_EventExposure_UnSubscribe service operation
5.2.2.3.4 Namf_EventExposure_Notify service operation
5.2.2.4 Namf_MT service
5.2.2.4.1 General
5.2.2.4.2 Namf_MT_EnableUEReachability service operation
5.2.2.4.3 Namf_MT_ ProvideDomainSelectionInfo
5.2.2.5 Namf_Location service
5.2.2.5.1 General
5.2.2.5.2 Namf_ Location_ProvidePositioningInfo service operation
5.2.2.5.3 Namf_Location_EventNotify service operation
5.2.2.5.4 Namf_ Location_ProvideLocationInfo service operation
5.2.3 UDM Services
5.2.3.1 General
5.2.3.2 Nudm_UEContextManagement (UECM) service
5.2.3.2.1 Nudm_UECM_Registration service operation
5.2.3.2.2 Nudm_UECM_DeregistrationNotification service operation
5.2.3.2.3 Nudm_UECM_Deregistration service operation
5.2.3.2.4 Nudm_UEContextManagement_Get service operation
5.2.3.2.5 Nudm_UECM_Update service operation
5.2.3.2.6 Nudm_UECM_PCscfRestoration service operation
5.2.3.3 Nudm_SubscriberDataManagement (SDM) Service
5.2.3.3.2 Nudm_SDM_Get service operation
5.2.3.3.3 Nudm_SDM_Notification service operation
5.2.3.3.4 Nudm_SDM_Subscribe service operation
5.2.3.3.5 Nudm_SDM_Unsubscribe service operation
5.2.3.3.6 Nudm_SDM_Info service operation
5.2.3.4 Nudm_UEAuthentication Service
5.2.3.4.1 General
5.2.3.4.2 Nudm_UEAuthentication_Get service operation
5.2.3.4.3 Nudm_UEAuthentication_ResultConfirmation service operation
5.2.3.5 Nudm_EventExposure service
5.2.3.5.1 General
5.2.3.5.2 Nudm_EventExposure_Subscribe service operation
5.2.3.5.3 Nudm_EventExposure_Unsubscribe service operation
5.2.3.5.4 Nudm_EventExposure_Notify service operation
5.2.3.6 Nudm_ParameterProvision service
5.2.3.6.1 General
5.2.3.6.2 Nudm_ParameterProvision_Update service operation
5.2.4 5G-EIR Services
5.2.4.1 General
5.2.4.2 N5g-eir_EquipmentIdentityCheck service
5.2.4.2.1 General
5.2.4.2.2 N5g-eir_EquipmentIdentityCheck_Get service operation
5.2.5 PCF Services
5.2.5.1 General
5.2.5.2 Npcf_AMPolicyControl service
5.2.5.2.1 General
5.2.5.2.2 Npcf_AMPolicyControl_Create service operation
5.2.5.2.3 Npcf_AMPolicyControl_UpdateNotify service operation
5.2.5.2.4 Npcf_AMPolicyControl_Delete service operation
5.2.5.2.5 Npcf_AMPolicyControl_Update service operation
5.2.5.3 Npcf_PolicyAuthorization Service
5.2.5.3.1 General
5.2.5.3.2 Npcf_PolicyAuthorization_Create service operation
5.2.5.3.3 Npcf_PolicyAuthorization_Update service operation
5.2.5.3.4 Npcf_PolicyAuthorization_Delete service operation
5.2.5.3.5 Npcf_PolicyAuthorization_Notify service operation
5.2.5.3.6 Npcf_PolicyAuthorization_Subscribe service operation
5.2.5.3.7 Npcf_PolicyAuthorization_Unsubscribe service operation
5.2.5.4 Npcf_SMPolicyControl service
5.2.5.4.1 General
5.2.5.4.2 Npcf_SMPolicyControl_Create service operation
5.2.5.4.3 Npcf_SMPolicyControl_UpdateNotify service operation
5.2.5.4.4 Npcf_SMPolicyControl_Delete service operation
5.2.5.4.5 Npcf_SMPolicyControl_Update service operation
5.2.5.5 Npcf_BDTPolicyControl Service
5.2.5.5.1 General
5.2.5.5.2 Npcf_BDTPolicyControl_Create service operation
5.2.5.5.3 Npcf_BDTPolicyControl_Update service operation
5.2.6 NEF Services
5.2.6.1 General
5.2.6.2 Nnef_EventExposure service
5.2.6.2.1 General
5.2.6.2.2 Nnef_EventExposure_Subscribe operation
5.2.6.2.3 Nnef_EventExposure_Unsubscribe service operation
5.2.6.2.4 Nnef_EventExposure_Notify service operation
5.2.6.3 Nnef_PFDManagement service
5.2.6.3.1 General
5.2.6.3.2 Nnef_PFDManagement_Fetch service operation
5.2.6.3.3 Nnef_PFDManagement_Subscribe service operation
5.2.6.3.4 Nnef_PFDManagement_Notify service operation
5.2.6.3.5 Nnef_PFDManagement_Unsubscribe service operation
5.2.6.3.6 Nnef_PFDManagement_Create service operation
5.2.6.4 Nnef_ParameterProvision service
5.2.6.4.1 General
5.2.6.4.2 Nnef_ParameterProvision_Update service operation
5.2.6.5 Nnef_Trigger service
5.2.6.5.1 General
5.2.6.5.2 Nnef_Trigger_Deliveryrequest service operation
5.2.6.5.3 Nnef_Trigger_DeliveryNotify service operation
5.2.6.6 Nnef_BDTPNegotiation service
5.2.6.6.1 General
5.2.6.6.2 Nnef_BDTPNegotiation_Create service operation
5.2.6.6.3 Nnef_BDTPNegotiation_Update service operation
5.2.6.7 Nnef_TrafficInfluence service
5.2.6.7.1 General
5.2.6.7.2 Nnef_TrafficInfluence_Create operation
5.2.6.7.3 Nnef_TrafficInfluence_Update operation
5.2.6.7.4 Nnef_TrafficInfluence_Delete operation
5.2.7 NRF Services
5.2.7.1 General
5.2.7.2 Nnrf_NFManagement_service
5.2.7.2.1 General
5.2.7.2.2 Nnrf_NFManagement_NFRegister service operation
5.2.7.2.3 Nnrf_NFManagement_NFUpdate service operation
5.2.7.2.4 Nnrf_NFManagement_NFDeregister service operation
5.2.7.2.5 Nnrf_NFManagement_NFStatusSubscribe service operation
5.2.7.2.6 Nnrf_NFManagement_NFStatusNotify service operation
5.2.7.2.7 Nnrf_NFManagement_NFStatusUnsubscribe service operation
5.2.7.3 Nnrf_NFDiscovery service
5.2.7.3.1 General
5.2.7.3.2 Nnrf_NFDiscovery service operation
5.2.8 SMF Services
5.2.8.1 General
5.2.8.2 Nsmf_PDUSession Service
5.2.8.2.1 General
5.2.8.2.2 Nsmf_PDUSession_Create service operation
5.2.8.2.3 Nsmf_PDUSession_Update service operation
5.2.8.2.4 Nsmf_PDUSession_Release service operation
5.2.8.2.5 Nsmf_PDUSession_CreateSMContext service operation
5.2.8.2.6 Nsmf_PDUSession_UpdateSMContext service operation
5.2.8.2.7 Nsmf_PDUSession_ReleaseSMContext service operation
5.2.8.2.8 Nsmf_PDUSession_SMContextStatusNotify service operation
5.2.8.2.9 Nsmf_PDUSession_StatusNotify service operation
5.2.8.2.10 Nsmf_PDUSession_ContextRequest service operation
5.2.8.3 Nsmf_EventExposure Service
5.2.8.3.1 General
5.2.8.3.2 Nsmf_EventExposure_Notify service operation
5.2.8.3.3 Nsmf_EventExposure_Subscribe service operation
5.2.8.3.4 Nsmf_EventExposure_UnSubscribe service operation
5.2.9 SMSF Services
5.2.9.1 General
5.2.9.2 Nsmsf_SMService service
5.2.9.2.1 General
5.2.9.2.2 Nsmsf_SMService_Activate service operation
5.2.9.2.3 Nsmsf_SMService_Deactivate service operation
5.2.9.2.4 Nsmsf_SMService_UplinkSMS service operation
5.2.10 AUSF Services
5.2.10.1 General
5.2.10.2 Nausf_UEAuthentication service
5.2.10.2.1 General
5.2.10.2.2 Nausf_UEAuthentication_Authenticate service operation
5.2.10.2.3 Void
5.2.11 NWDAF Services
5.2.11.1 General
5.2.11.2 Nnwdaf_EventsSubscription Service
5.2.11.2.1 General
5.2.11.2.2 Nnwdaf_EventsSubscription_Subscribe service operation
5.2.11.2.3 Nnwdaf_EventsSubscription_Unsubscribe service operation
5.2.11.2.4 Nnwdaf_EventsSubscription_Notify service operation
5.2.11.3 Nnwdaf_Analytics_Info service
5.2.11.3.1 General
5.2.11.3.2 Nnwdaf_AnalyticsInfo_Request service operation
5.2.12 UDR Services
5.2.12.1 General
5.2.12.2 Nudr_DataManagement (DM) service
5.2.12.2.1 General
5.2.12.2.2 Nudr_DM_Query service operation
5.2.13 BSF Services
5.2.13.1 General
5.2.13.2 Nbsf_Management service
5.2.13.2.1 General
5.2.13.2.2 Nbsf_Management_Register service operation
5.2.13.2.3 Nbsf_Management_Deregister service operation
5.2.13.2.4 Nbsf_Management_Discovery service operation
5.2.14 UDSF Services
5.2.14.1 General
5.2.14.2 Nudsf_UnstructuredDataManagement service
5.2.14.2.1 General
5.2.14.2.2 Nudsf_UnstructuredDataManagement_Query service operation
5.2.14.2.3 Nudsf_UnstructuredDataManagement_Create service operation
5.2.14.2.4 Nudsf_UnstructuredDataManagement_Delete service operation
5.2.14.2.5 Nudsf_UnstructuredDataManagement_Update service operation
5.2.15 LMF Services
5.2.15.1 General
5.2.15.2 Nlmf_Location service
5.2.15.2.1 General
5.2.15.2.2 Nlmf_Location_DetermineLocation service operation
5.2.16 NSSF Services
5.2.16.1 General
5.2.16.2 Nnssf_NSSelection service
5.2.16.2.1 Nnssf_NSSelection_Get service operation
5.2.16.3 Nnssf_NSSAIAvailability service
5.2.16.3.1 General
5.2.16.3.2 Nnssf_NSSAIAvailability_Update service operation
5.2.16.3.3 Nnssf_NSSAIAvailability_Notify service operation
5.2.17 CHF Spending Limit Control Service
5.2.17.1 General
5.2.17.2 Nchf_SpendingLimitControl service
5.2.17.2.1 General
5.2.17.2.2 Nchf_SpendingLimitControl Subscribe service operation
5.2.17.2.4 Nchf_SpendingLimitControl Unsubscribe service operation
5.2.17.2.2 Nchf_SpendingLimitControl Notify service operation
Annex A (informative): Drafting rules and conventions for NF services
A.1 General
A.2 Naming
A.2.1 Service naming
A.2.2 Service operation naming
A.3 Representation in an information flow
A.4 Reference to services and service operations in procedures
A.5 Service and service operation description template
A.6 Design Guidelines for NF services
A.6.1 Self-Containment
A.6.2 Reusability
A.6.3 Use Independent Management Schemes
Annex B (informative): Drafting Rules for Information flows
Annex C (informative): Generating EPS PDN Connection parameters from 5G PDU Session parameters
Annex D (normative): UE Presence in Area of Interest
D.1 Determination of UE presence in Area of Interest by AMF
D.2 Determination of UE presence in Area of Interest by NG-RAN
Annex D (informative): Change history
History
ETSI TS 123 502 V15.2.0 (2018-06)
TECHNICAL SPECIFICATION
5G;
Procedures for the 5G System
(3GPP TS 23.502 version 15.2.0 Release 15)
3GPP TS 23.502 version 15.2.0 Release 15
1
ETSI TS 123 502 V15.2.0 (2018-06)
Reference
DTS/TSGS-0223502vf20
Keywords
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Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
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Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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Contents
Intellectual Property Rights ................................................................................................................................ 2
Foreword ............................................................................................................................................................. 2
Modal verbs terminology .................................................................................................................................... 2
Foreword ........................................................................................................................................................... 12
1
2
3
3.1
3.2
Scope ...................................................................................................................................................... 13
References .............................................................................................................................................. 13
Definitions, symbols and abbreviations ................................................................................................. 14
Definitions ........................................................................................................................................................ 14
Abbreviations ................................................................................................................................................... 14
4
4.1
4.2
4.2.1
4.2.2
4.2.2.1
4.2.2.2
4.2.2.2.1
4.2.2.2.2
4.2.2.2.3
4.2.2.3
4.2.2.3.1
4.2.2.3.2
4.2.2.3.3
4.2.3
4.2.3.1
4.2.3.2
4.2.3.3
4.2.4
4.2.4.1
4.2.4.2
4.2.4.3
4.2.5
4.2.5.1
4.2.5.2
4.2.5.3
4.2.6
4.2.7
4.2.7.1
4.2.7.2
4.2.7.2.1
4.2.7.2.2
4.2.7.2.3
4.2.7.2.4
4.2.7.2.5
4.2.7.3
4.2.8
4.2.8a
4.3
4.3.1
4.3.2
4.3.2.1
4.3.2.2
4.3.2.2.1
4.3.2.2.2
System procedures .................................................................................................................................. 14
General ............................................................................................................................................................. 14
Connection, Registration and Mobility Management procedures .................................................................... 15
General ........................................................................................................................................................ 15
Registration Management procedures ......................................................................................................... 15
General .................................................................................................................................................. 15
Registration procedures ......................................................................................................................... 15
General ............................................................................................................................................ 15
General Registration ........................................................................................................................ 16
Registration with AMF re-allocation ............................................................................................... 23
Deregistration procedures ..................................................................................................................... 26
General ............................................................................................................................................ 26
UE-initiated Deregistration .............................................................................................................. 26
Network-initiated Deregistration ..................................................................................................... 27
Service Request procedures ........................................................................................................................ 28
General .................................................................................................................................................. 28
UE Triggered Service Request .............................................................................................................. 29
Network Triggered Service Request ..................................................................................................... 37
UE Configuration Update ........................................................................................................................... 43
General .................................................................................................................................................. 43
UE Configuration Update procedure for access and mobility management related parameters ........... 43
UE Configuration Update procedure for transparent UE Policy delivery ............................................. 45
Reachability procedures .............................................................................................................................. 46
General .................................................................................................................................................. 46
UE Reachability Notification Request procedure ................................................................................. 47
UE Activity Notification procedure ...................................................................................................... 48
AN Release ................................................................................................................................................. 48
N2 procedures ............................................................................................................................................. 50
N2 Configuration .................................................................................................................................. 50
NGAP UE-TNLA-binding related procedures ...................................................................................... 51
Creating NGAP UE-TNLA-bindings during Registration and Service Request ............................. 51
Creating NGAP UE-TNLA-bindings during handovers .................................................................. 51
Re-Creating NGAP UE-TNLA-bindings subsequent to NGAP UE-TNLA-binding release .......... 52
NGAP UE-TNLA-binding update procedure .................................................................................. 52
NGAP UE-TNLA-binding per UE Release procedure .................................................................... 52
AMF Failure or Planned Maintenance handling procedure .................................................................. 52
Void ............................................................................................................................................................ 53
UE Capability Match Request procedure .................................................................................................... 53
Session Management procedures ..................................................................................................................... 54
General ........................................................................................................................................................ 54
PDU Session Establishment ........................................................................................................................ 55
General .................................................................................................................................................. 55
UE Requested PDU Session Establishment .......................................................................................... 55
Non-roaming and Roaming with Local Breakout ............................................................................ 55
Home-routed Roaming .................................................................................................................... 64
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4.3.2.2.3
4.3.2.3
4.3.3
4.3.3.1
4.3.3.2
4.3.3.3
4.3.4
4.3.4.1
4.3.4.2
4.3.4.3
4.3.5
4.3.5.1
4.3.5.2
4.3.5.3
4.3.5.4
4.3.5.5
4.3.5.6
4.3.5.7
4.3.6
4.3.6.1
4.3.6.2
4.3.6.3
4.3.6.4
4.3.7
4.4
4.4.1
4.4.1.1
4.4.1.2
4.4.1.3
4.4.1.4
4.4.2
4.4.2.1
4.4.2.2
4.4.3
4.4.3.1
4.4.3.2
4.4.3.3
4.4.3.4
4.4.3.5
4.4.4
4.5
4.5.1
4.5.2
4.5.3
4.6
4.7
4.8
4.8.1
4.8.2
4.8.3
4.9
4.9.1
4.9.1.1
4.9.1.2
4.9.1.2.1
4.9.1.2.2
4.9.1.2.3
4.9.1.2.4
4.9.1.3
SMF selection .................................................................................................................................. 66
Secondary authorization/authentication by an DN-AAA server during the PDU Session
establishment ......................................................................................................................................... 69
PDU Session Modification ......................................................................................................................... 72
General .................................................................................................................................................. 72
UE or network requested PDU Session Modification (non-roaming and roaming with local
breakout) ............................................................................................................................................... 72
UE or network requested PDU Session Modification (home-routed roaming) ..................................... 76
PDU Session Release .................................................................................................................................. 78
General .................................................................................................................................................. 78
UE or network requested PDU Session Release for Non-Roaming and Roaming with Local
Breakout ................................................................................................................................................ 79
UE or network requested PDU Session Release for Home-routed Roaming ........................................ 82
Session continuity, service continuity and UP path management ............................................................... 83
Change of SSC mode 2 PDU Session Anchor with different PDU Sessions ........................................ 83
Change of SSC mode 3 PDU Session Anchor with multiple PDU Sessions ........................................ 84
Change of SSC mode 3 PDU Session Anchor with IPv6 Multi-homed PDU Session .......................... 86
Addition of additional PDU Session Anchor and Branching Point or UL CL ...................................... 88
Removal of additional PDU Session Anchor and Branching Point or UL CL ...................................... 90
Change of additional PDU Session Anchor for IPv6 multi-homing or UL CL ..................................... 91
Simultaneous change of Branching Point or UL CL and additional PSA for a PDU Session............... 93
Application Function influence on traffic routing ...................................................................................... 95
General .................................................................................................................................................. 95
Processing AF requests to influence traffic routing for Sessions not identified by an UE address ....... 96
Notification of User Plane Management Events ................................................................................... 97
Transferring an AF request targeting an individual UE address to the relevant PCF............................ 98
CN-initiated selective deactivation of UP connection of an existing PDU Session .................................... 99
SMF and UPF interactions ............................................................................................................................. 100
N4 session management procedures ......................................................................................................... 100
General ................................................................................................................................................ 100
N4 Session Establishment procedure .................................................................................................. 100
N4 Session Modification procedure .................................................................................................... 101
N4 Session Release procedure ............................................................................................................ 101
N4 Reporting Procedures .......................................................................................................................... 102
General ................................................................................................................................................ 102
N4 Session Level Reporting Procedure ............................................................................................... 102
N4 Node Level Procedures ....................................................................................................................... 103
N4 Association Setup Procedure ......................................................................................................... 103
N4 Association Update Procedure ...................................................................................................... 103
N4 Association Release Procedure ..................................................................................................... 104
N4 Report Procedure ........................................................................................................................... 104
N4 PFD management Procedure ......................................................................................................... 105
SMF Pause of Charging procedure ........................................................................................................... 105
User Profile management procedures ............................................................................................................. 107
Subscriber Data Update Notification to AMF .......................................................................................... 107
Session Management Subscriber Data Update Notification to SMF ........................................................ 107
Purge of subscriber data in AMF .............................................................................................................. 107
Security procedures ........................................................................................................................................ 108
ME Identity check procedure ......................................................................................................................... 108
RAN-CN interactions ..................................................................................................................................... 108
Connection Inactive procedure ................................................................................................................. 108
Connection Resume procedure ................................................................................................................. 108
N2 Notification procedure ........................................................................................................................ 109
Handover procedures ...................................................................................................................................... 110
Handover procedures in 3GPP access ....................................................................................................... 110
General ................................................................................................................................................ 110
Xn based inter NG-RAN handover ..................................................................................................... 111
General .......................................................................................................................................... 111
Xn based inter NG-RAN handover without User Plane function re-allocation ............................. 111
Xn based inter NG-RAN handover with insertion of intermediate UPF ....................................... 114
Xn based inter NG-RAN handover with re-allocation of intermediate UPF ................................. 116
Inter NG-RAN node N2 based handover ............................................................................................ 117
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4.9.1.3.1
4.9.1.3.2
4.9.1.3.3
4.9.1.4
4.9.2
4.9.2.1
4.9.2.2
4.9.2.3
4.9.2.3.1
4.9.2.3.2
4.9.2.4
4.9.2.4.1
4.9.2.4.2
4.10
4.11
4.11.0
4.11.0a
4.11.0a.1
4.11.0a.2
4.11.1
4.11.1.1
4.11.1.2
4.11.1.2.1
4.11.1.2.2
4.11.1.2.3
4.11.1.3
4.11.1.3.1
4.11.1.3.2
4.11.1.3.3
4.11.1.4
4.11.1.4.1
4.11.1.4.2
4.11.1.4.3
4.11.1.5
4.11.1.5.1
4.11.1.5.2
4.11.1.5.3
4.11.1.5.4
4.11.1.5.5
4.11.2
4.11.2.1
4.11.2.2
4.11.2.3
4.11.2.4
4.11.2.4.1
4.11.3
4.11.3.1
4.11.3.2
4.11.4
4.11.4.1
4.11.4.2
4.12
4.12.1
4.12.2
4.12.2.1
4.12.2.2
4.12.2.3
4.12.3
General .......................................................................................................................................... 117
Preparation phase........................................................................................................................... 118
Execution phase ............................................................................................................................. 122
Inter NG-RAN node N2 based handover, Cancel ............................................................................... 125
Handover of a PDU Session procedure between 3GPP and untrusted non-3GPP access ......................... 125
Handover of a PDU Session procedure from untrusted non-3GPP to 3GPP access (non-roaming
and roaming with local breakout) ........................................................................................................ 125
Handover of a PDU Session procedure from 3GPP to untrusted non-3GPP access (non-roaming
and roaming with local breakout) ........................................................................................................ 126
Handover of a PDU Session procedure from untrusted non-3GPP to 3GPP access (home routed
roaming) .............................................................................................................................................. 126
The target AMF is in the PLMN of the N3IWF ............................................................................ 126
The target AMF is not in the PLMN of the N3IWF (i.e. N3IWF in HPLMN) .............................. 127
Handover of a PDU Session procedure from 3GPP to untrusted non-3GPP access (home routed
roaming) .............................................................................................................................................. 127
The selected N3IWF is in the registered PLMN ............................................................................ 127
The UE is roaming and the selected N3IWF is in the home PLMN .............................................. 128
NG-RAN Location reporting procedures ....................................................................................................... 128
System interworking procedures with EPC .................................................................................................... 130
General ...................................................................................................................................................... 130
Impacts to EPS Procedues ........................................................................................................................ 130
General ................................................................................................................................................ 130
Interaction with PCC ........................................................................................................................... 130
N26 based Interworking Procedures ......................................................................................................... 130
General ................................................................................................................................................ 130
Handover procedures .......................................................................................................................... 131
5GS to EPS handover using N26 interface .................................................................................... 131
EPS to 5GS handover using N26 interface .................................................................................... 135
Handover Cancel ........................................................................................................................... 140
Idle Mode Mobility procedures ........................................................................................................... 141
General .......................................................................................................................................... 141
5GS to EPS Idle mode mobility using N26 interface .................................................................... 141
EPS to 5GS Mobility Registration Procedure (Idle and Connected State) using N26 interface .... 143
Procedures for EPS bearer ID allocation ............................................................................................. 147
EPS bearer ID allocation ............................................................................................................... 147
EPS bearer ID transfer ................................................................................................................... 150
EPS bearer ID revocation .............................................................................................................. 150
Impacts to EPS Procedures ................................................................................................................. 151
General .......................................................................................................................................... 151
E-UTRAN Initial Attach ............................................................................................................... 151
Tracking Area Update ................................................................................................................... 151
Session Management ..................................................................................................................... 152
5GS to EPS handover using N26 interface .................................................................................... 154
Interworking procedures without N26 interface ....................................................................................... 154
General ................................................................................................................................................ 154
5GS to EPS Mobility ........................................................................................................................... 154
EPS to 5GS Mobility ........................................................................................................................... 156
Impacts to EPS Procedures ................................................................................................................. 158
E-UTRAN Attach .......................................................................................................................... 158
Handover procedures between EPS and 5GC-N3IWF ............................................................................. 159
Handover from EPS to 5GC-N3IWF .................................................................................................. 159
Handover from 5GC-N3IWF to EPS .................................................................................................. 160
Handover procedures between EPC/ePDG and 5GS ................................................................................ 160
Handover from EPC/ePDG to 5GS ..................................................................................................... 160
Handover from 5GS to EPC/ePDG ..................................................................................................... 161
Procedures for non-3GPP access .................................................................................................................... 161
General ...................................................................................................................................................... 161
Registration via Untrusted non-3GPP Access .......................................................................................... 161
General ................................................................................................................................................ 161
Registration procedure for untrusted non-3GPP access ...................................................................... 162
Emergency registration for untrusted non-3GPP Access .................................................................... 164
Deregistration procedure for untrusted non-3gpp access .......................................................................... 165
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4.12.4
4.12.4.1
4.12.4.2
4.12.4.3
4.12.5
4.12.6
4.12.7
4.12.8
4.13
4.13.1
4.13.2
4.13.2.1
4.13.2.2
4.13.3
4.13.3.1
4.13.3.2
4.13.3.3
4.13.3.4
4.13.3.5
4.13.3.6
4.13.3.7
4.13.3.8
4.13.3.9
4.13.4
4.13.4.1
4.13.4.2
4.13.5
4.13.5.1
4.13.5.2
4.13.5.3
4.13.5.4
4.13.5.5
4.13.5.6
4.13.5.7
4.13.6
4.13.6.1
4.13.6.2
4.14
4.14.1
4.15
4.15.1
4.15.2
4.15.3
4.15.3.1
4.15.3.2
4.15.3.2.1
4.15.3.2.2
4.15.3.2.3
4.15.3.2.4
4.15.4
4.15.4.1
4.15.4.2
4.15.5
4.15.6
4.15.6.1
4.15.6.2
4.15.6.3
4.16
4.16.1
4.16.1.1
4.16.1.2
N2 procedures via Untrusted non-3GPP Access ....................................................................................... 165
Service Request procedures via Untrusted non-3GPP Access ............................................................ 165
Procedure for the UE context release in the N3IWF ........................................................................... 166
CN-initiated selective deactivation of UP connection of an existing PDU Session associated with
Untrusted non-3GPP Access ............................................................................................................... 168
UE Requested PDU Session Establishment via Untrusted non-3GPP Access.......................................... 168
UE or Network Requested PDU Session Modification via Untrusted non-3GPP access ......................... 170
UE or network Requested PDU Session Release via Untrusted non-3GPP access................................... 171
Mobility from a non-geographically selected AMF to a geographically selected AMF ........................... 173
Specific services ............................................................................................................................................. 174
General ...................................................................................................................................................... 174
Application Triggering ............................................................................................................................. 174
General ................................................................................................................................................ 174
The procedure of "Application Triggering" Service ........................................................................... 175
SMS over NAS procedures ....................................................................................................................... 177
Registration procedures for SMS over NAS ....................................................................................... 177
Deregistration procedures for SMS over NAS .................................................................................... 178
MO SMS over NAS in CM-IDLE (baseline) ...................................................................................... 179
Void..................................................................................................................................................... 180
MO SMS over NAS in CM-CONNECTED ........................................................................................ 180
MT SMS over NAS in CM-IDLE state via 3GPP access.................................................................... 180
MT SMS over NAS in CM-CONNECTED state via 3GPP access..................................................... 181
MT SMS over NAS via non-3GPP access .......................................................................................... 181
Unsuccessful Mobile terminating SMS delivery attempt .................................................................... 182
Emergency Services .................................................................................................................................. 182
General ................................................................................................................................................ 182
Emergency Services Fallback ............................................................................................................. 182
Location Services procedures ................................................................................................................... 184
5GC-NI-LR Procedure ........................................................................................................................ 184
5GC-MT-LR Procedure without UDM Query .................................................................................... 185
5GC-MT-LR Procedure ...................................................................................................................... 186
UE Assisted and UE Based Positioning Procedure ............................................................................. 187
Network Assisted Positioning Procedure ............................................................................................ 188
Obtaining Non-UE Associated Network Assistance Data .................................................................. 188
Location continuity for Handover of an Emergency session from NG-RAN ..................................... 189
Support of IMS Voice ............................................................................................................................... 191
EPS fallback for IMS voice ................................................................................................................. 191
Inter RAT Fallback in 5GC for IMS voice .......................................................................................... 193
Support for Dual Connectivity ....................................................................................................................... 194
RAN Initiated QoS Flow Mobility ........................................................................................................... 194
Network Exposure .......................................................................................................................................... 195
General ...................................................................................................................................................... 195
External Exposure of Network Capabilities .............................................................................................. 196
Event Exposure using NEF ....................................................................................................................... 196
Monitoring Events ............................................................................................................................... 196
Information flows ................................................................................................................................ 198
AMF service operations information flow..................................................................................... 198
UDM service operations information flow .................................................................................... 198
NEF service operations information flow ...................................................................................... 200
Exposure with bulk subscription ................................................................................................... 201
Core Network Internal Event Exposure .................................................................................................... 203
General ................................................................................................................................................ 203
Exposure of Mobility Events from AMF ............................................................................................ 203
Void .......................................................................................................................................................... 203
External Parameter Provisioning .............................................................................................................. 203
General ................................................................................................................................................ 203
NEF service operations information flow ........................................................................................... 204
Expected UE Behaviour parameters.................................................................................................... 205
Procedures and flows for Policy Framework ................................................................................................. 205
AM Policy Association Establishment ..................................................................................................... 205
General ................................................................................................................................................ 205
AM Policy Association Establishment with new Selected PCF .......................................................... 205
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4.16.1.3
4.16.2
4.16.2.0
4.16.2.1
4.16.2.2
4.16.3
4.16.3.1
4.16.3.2
4.16.3.3
4.16.4
4.16.5
4.16.5.0
4.16.5.1
4.16.5.2
4.16.6
4.16.7
4.16.7.1
4.16.7.2
4.16.8
4.16.8.1
4.16.8.2
4.16.8.3
4.16.8.4
4.16.8.5
4.16.9
4.16.10
4.17
4.17.1
4.17.2
4.17.3
4.17.4
4.17.5
4.17.6
4.17.6.1
4.17.6.2
4.17.7
4.17.8
4.18
4.18.1
4.18.2
4.18.3
4.18.3.1
4.18.3.2
4.19
4.19.1
4.19.2
AM Policy Association Establishment with the old PCF .................................................................... 208
AM Policy Association Modification ....................................................................................................... 209
General ................................................................................................................................................ 209
AM Policy Association Modification initiated by the AMF ............................................................... 209
AM Policy Association Modification initiated by the PCF ................................................................. 211
AM Policy Association Termination ........................................................................................................ 212
General ................................................................................................................................................ 212
AMF-initiated AM Policy Association Termination ........................................................................... 213
PCF-initiated Policy Association Termination .................................................................................... 214
SM Policy Association Establishment ...................................................................................................... 215
SM Policy Association Modification ........................................................................................................ 216
General ................................................................................................................................................ 216
SMF initiated SM Policy Association Modification ........................................................................... 216
PCF initiated SM Policy Association Modification ............................................................................ 217
SM Policy Association Termination ......................................................................................................... 218
Negotiations for future background data transfer ..................................................................................... 219
General ................................................................................................................................................ 219
Procedures for future background data transfer .................................................................................. 220
Procedures on interaction between PCF and CHF .................................................................................... 221
General ................................................................................................................................................ 221
Initial Spending Limit Retrieval .......................................................................................................... 221
Intermediate Spending Limit Report Retrieval ................................................................................... 222
Final Spending Limit Report Retrieval ............................................................................................... 222
Spending Limit Report ........................................................................................................................ 223
Update of the subscription information in the PCF .................................................................................. 224
Providing AF request to PCFs using UDR ............................................................................................... 224
Network Function Service Framework Procedure ......................................................................................... 226
NF service Registration ............................................................................................................................ 226
NF service update ..................................................................................................................................... 226
NF service deregistration .......................................................................................................................... 227
NF/NF service discovery in the same PLMN ........................................................................................... 227
NF/NF service discovery across PLMNs .................................................................................................. 228
SMF Provisioning of available UPFs using the NRF ............................................................................... 229
General ................................................................................................................................................ 229
SMF provisioning of UPF instances using NRF ................................................................................. 229
NF/NF service status subscribe/notify in the same PLMN ....................................................................... 230
NF/NF service status subscribe/notify across PLMNs .............................................................................. 230
Procedures for Management of PFDs ............................................................................................................. 231
General ...................................................................................................................................................... 231
PFD management via NEF (PFDF) .......................................................................................................... 232
PFD management in the SMF ................................................................................................................... 232
PFD Retrieval by the SMF .................................................................................................................. 232
Management of PFDs in the SMF ....................................................................................................... 233
Network Data Analytics ................................................................................................................................. 233
Network data analytics Subscribe/Unsubscribe ........................................................................................ 233
Network data analytics Request ................................................................................................................ 234
5
5.1
5.1.1
5.2
5.2.1
5.2.2
5.2.2.1
5.2.2.2
5.2.2.2.1
5.2.2.2.2
5.2.2.2.3
5.2.2.2.4
5.2.2.2.5
5.2.2.2.6
5.2.2.2.7
Network Function Service procedures ................................................................................................. 234
Network Function Service framework procedures ......................................................................................... 234
Network Function Service Discovery ....................................................................................................... 234
Network Function services ............................................................................................................................. 235
General ...................................................................................................................................................... 235
AMF Services ........................................................................................................................................... 235
General ................................................................................................................................................ 235
Namf_Communication service ............................................................................................................ 235
General .......................................................................................................................................... 235
Namf_Communication_UEContextTransfer service operation ..................................................... 236
Namf_Communication_RegistrationCompleteNotify service operation ....................................... 239
Namf_Communication_N1MessageNotify service operation ....................................................... 239
Namf_Communication_N1MessageSubscribe service operation .................................................. 240
Namf_Communication_N1MessageUnSubscribe service operation ............................................. 240
Namf_Communication_N1N2MessageTransfer service operation ............................................... 240
ETSI
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