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TS 29.502  CT4 ★
5GS — Session Management Services

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V16.2.0 (Wzip)  2019/12  211 p.
V15.6.0 (PDF)  2019/12  152 p.

Symbolic representation of 5GS Nsmf services

Rapporteur:  Mr. Landais, Bruno
See also:
TS 29.508  for the Nsmf_EventExposure Service
The present document specifies the stage 3 protocol and data model for the Nsmf Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for the following service:
  • Nsmf_PDUSession

full Table of Contents for  TS 29.502  Word version:   16.2.0

Here   Top
1 Scope  2 References  3 Definitions and abbreviations  4 Overview  5 Services offered by the SMF  6 API Definitions  A [N] OpenAPI specification  B HTTP Multipart Messages  C Change history 

 

1  Scope  Word-p. 9
2  References
3  Definitions and abbreviations  Word-p. 10
3.1  Definitions
3.2  Abbreviations
4  Overview  Word-p. 11
4.1  Introduction
5  Services offered by the SMF
5.1  Introduction
5.2  Nsmf_PDUSession Service  Word-p. 12
5.2.1  Service Description  Up
5.2.2  Service Operations  Word-p. 13
5.2.2.1  Introduction
5.2.2.2  Create SM Context service operation
5.2.2.2.1  General
5.2.2.2.2  EPS to 5GS Idle mode mobility using N26 interface  Word-p. 16
5.2.2.2.3  EPS to 5GS Handover Preparation using N26 interface  Word-p. 18
5.2.2.2.4  I-SMF Insertion, Change or Removal during Xn based Handover [R16]  Word-p. 19
5.2.2.2.5  I-SMF Insertion, Change or Removal during N2 based Handover [R16]
5.2.2.2.6  Service Request with I-SMF insertion/change/removal or with V-SMF change [R16]
5.2.2.2.7  Registration procedure for a UE with a PDU session with I-SMF insertion, change and removal [R16]  Word-p. 20
5.2.2.2.8  SMF Context Transfer procedure, LBO or no Roaming, no I-SMF [R16]  Word-p. 21
5.2.2.2.9  I-SMF Context Transfer procedure [R16]
5.2.2.3  Update SM Context service operation
5.2.2.3.1  General
5.2.2.3.2  Activation and Deactivation of the User Plane connection of a PDU session  Word-p. 23
5.2.2.3.2.1  General
5.2.2.3.2.2  Activation of User Plane connectivity of a PDU session
5.2.2.3.2.3  Deactivation of User Plane connectivity of a PDU session  Word-p. 25
5.2.2.3.2.4  Changing the access type of a PDU session from non-3GPP access to 3GPP access during a Service Request procedure
5.2.2.3.3  Xn Handover  Word-p. 26
5.2.2.3.4  N2 Handover  Word-p. 28
5.2.2.3.4.1  General
5.2.2.3.4.2  N2 Handover Preparation
5.2.2.3.4.3  N2 Handover Execution  Word-p. 30
5.2.2.3.4.4  N2 Handover Cancellation  Word-p. 31
5.2.2.3.5  Handover between 3GPP and untrusted non-3GPP access procedures
5.2.2.3.5.1  General
5.2.2.3.5.2  Handover of a PDU session without AMF change or with target AMF in same PLMN
5.2.2.3.6  Inter-AMF change or mobility  Word-p. 32
5.2.2.3.7  RAN Initiated QoS Flow Mobility  Word-p. 33
5.2.2.3.8  EPS to 5GS Handover using N26 interface
5.2.2.3.8.1  General
5.2.2.3.8.2  EPS to 5GS Handover Preparation
5.2.2.3.8.3  EPS to 5GS Handover Execution  Word-p. 34
5.2.2.3.8.4  EPS to 5GS Handover Cancellation
5.2.2.3.9  5GS to EPS Handover using N26 interface
5.2.2.3.10  P-CSCF Restoration Procedure via AMF  Word-p. 35
5.2.2.3.11  AMF requested PDU Session Release due to duplicated PDU Session Id
5.2.2.3.12  AMF requested PDU Session Release due to slice not available  Word-p. 36
5.2.2.3.13  Indirect Data Forwarding Tunnel establishment during N2 based Handover with I-SMF [R16]  Up
5.2.2.3.14  Request to forward buffered downlink data packets at I-UPF [R16]  Word-p. 37
5.2.2.3.15  Connection Suspend procedure [R16]
5.2.2.3.16  Connection Resume in CM-IDLE with Suspend procedure [R16]  Word-p. 38
5.2.2.4  Release SM Context service operation
5.2.2.4.1  General
5.2.2.5  Notify SM Context Status service operation  Word-p. 40
5.2.2.5.1  General
5.2.2.6  Retrieve SM Context service operation  Word-p. 41
5.2.2.6.1  General
5.2.2.7  Create service operation  Word-p. 43
5.2.2.7.1  General
5.2.2.7.2  EPS to 5GS Idle mode mobility  Word-p. 45
5.2.2.7.3  EPS to 5GS Handover Preparation  Word-p. 46
5.2.2.8  Update service operation  Word-p. 47
5.2.2.8.1  General
5.2.2.8.2  Update service operation towards H-SMF or SMF  Word-p. 48
5.2.2.8.2.1  General
5.2.2.8.2.2  UE or network (e.g. AMF, V-SMF, I-SMF) requested PDU session modification  Word-p. 49
5.2.2.8.2.3  UE requested PDU session release
5.2.2.8.2.4  EPS to 5GS Handover Execution  Up
5.2.2.8.2.5  Handover between 3GPP and untrusted non-3GPP access  Word-p. 50
5.2.2.8.2.6  P-CSCF Restoration Procedure via AMF
5.2.2.8.2.7  Addition of PSA and BP or UL CL controlled by I-SMF [R16]
5.2.2.8.2.8  Removal of PSA and BP or UL CL controlled by I-SMF [R16]
5.2.2.8.2.9  Change of PSA for IPv6 multi-homing or UL CL controlled by I-SMF [R16]  Word-p. 51
5.2.2.8.2.10  PDU Session modification with I-SMF or V-SMF change [R16]
5.2.2.8.2.11  Sending by I-SMF of N4 notifications related with traffic usage reporting [R16]  Word-p. 52
5.2.2.8.3  Update service operation towards V-SMF or I-SMF
5.2.2.8.3.1  General
5.2.2.8.3.2  Network (e.g. H-SMF, SMF) requested PDU session modification  Word-p. 53
5.2.2.8.3.3  Network (e.g. H-SMF, SMF) requested PDU session release  Word-p. 54
5.2.2.8.3.4  Handover between 3GPP and untrusted non-3GPP access, from 5GC-N3IWF to EPS or from 5GS to EPC/ePDG
5.2.2.8.3.5  EPS Bearer ID assignment
5.2.2.8.3.6  Addition of PSA and BP or UL CL controlled by I-SMF [R16]  Word-p. 55
5.2.2.8.3.7  Removal of PSA and BP or UL CL controlled by I-SMF [R16]
5.2.2.8.3.8  Change of PSA for IPv6 multi-homing or UL CL controlled by I-SMF [R16]  Word-p. 56
5.2.2.8.3.9  Policy update procedures with an I-SMF [R16]
5.2.2.9  Release service operation  Word-p. 57
5.2.2.9.1  General
5.2.2.10  Notify Status service operation  Up
5.2.2.10.1  General
5.2.2.11  Send MO Data service operation [R16]  Word-p. 58
5.2.2.11.1  General
5.2.3  General procedures  Word-p. 59
5.2.3.1  Transfer of NAS SM information between UE and H-SMF for Home Routed PDU sessions
5.2.3.1.1  General
5.2.3.1.2  V-SMF Behaviour
5.2.3.1.3  H-SMF Behaviour  Word-p. 60
5.2.3.2  Transfer of NAS SM information between UE and SMF for PDU sessions with an I-SMF [R16]
5.2.3.2.1  General  Up
5.2.3.3  Detection and handling of late arriving requests [R16]
5.2.3.3.1  Handling of requests which collide with an existing SM context or PDU session context
5.2.3.3.1.1  General
5.2.3.3.1.2  Principles
5.2.3.3.2  Detection and handling of requests which have timed out at the HTTP client  Word-p. 61
5.2.3.3.2.1  General
6  API Definitions
6.1  Nsmf_PDUSession Service API
6.1.1  API URI
6.1.2  Usage of HTTP  Word-p. 62
6.1.2.1  General
6.1.2.2  HTTP standard headers
6.1.2.2.1  General
6.1.2.2.2  Content type
6.1.2.3  HTTP custom headers
6.1.2.3.1  General
6.1.2.3.2  3gpp-Sbi-Origination-Timestamp [R16]  Word-p. 63
6.1.2.4  HTTP multipart messages
6.1.2.5  HTTP/2 request retries
6.1.3  Resources  Word-p. 64
6.1.3.1  Overview
6.1.3.2  Resource: SM contexts collection  Word-p. 65
6.1.3.2.1  Description
6.1.3.2.2  Resource Definition
6.1.3.2.3  Resource Standard Methods
6.1.3.2.3.1  POST
6.1.3.2.4  Resource Custom Operations  Word-p. 67
6.1.3.3  Resource: Individual SM context  Word-p. 68
6.1.3.3.1  Description
6.1.3.3.2  Resource Definition  Up
6.1.3.3.3  Resource Standard Methods
6.1.3.3.4  Resource Custom Operations
6.1.3.3.4.1  Overview
6.1.3.3.4.2  Operation: modify
6.1.3.3.4.2.1  Description
6.1.3.3.4.2.2  Operation Definition
6.1.3.3.4.3  Operation: release  Word-p. 69
6.1.3.3.4.3.1  Description
6.1.3.3.4.3.2  Operation Definition
6.1.3.3.4.4  Operation: retrieve  Word-p. 70
6.1.3.3.4.4.1  Description
6.1.3.3.4.4.2  Operation Definition
6.1.3.3.4.5  Operation: send-mo-data [R16]
6.1.3.3.4.5.1  Description
6.1.3.3.4.5.2  Operation Definition
6.1.3.5  Resource: PDU sessions collection (H-SMF or SMF)  Word-p. 71
6.1.3.5.1  Description
6.1.3.5.2  Resource Definition
6.1.3.5.3  Resource Standard Methods
6.1.3.5.3.1  POST  Up
6.1.3.5.4  Resource Custom Operations  Word-p. 73
6.1.3.5.4.1  Overview
6.1.3.6  Resource: Individual PDU session (H-SMF or SMF)
6.1.3.6.1  Description
6.1.3.6.2  Resource Definition
6.1.3.6.3  Resource Standard Methods
6.1.3.6.4  Resource Custom Operations
6.1.3.6.4.1  Overview
6.1.3.6.4.2  Operation: modify
6.1.3.6.4.2.1  Description  Up
6.1.3.6.4.2.2  Operation Definition
6.1.3.6.4.3  Operation: release  Word-p. 74
6.1.3.6.4.3.1  Description
6.1.3.6.4.3.2  Operation Definition
6.1.3.7  Resource: Individual PDU session (V-SMF or I-SMF)  Word-p. 75
6.1.3.7.1  Description
6.1.3.7.2  Resource Definition
6.1.3.7.3  Resource Standard Methods
6.1.3.7.3.1  POST
6.1.3.7.4  Resource Custom Operations  Word-p. 76
6.1.3.7.4.1  Overview
6.1.3.7.4.2  Operation: modify
6.1.3.7.4.2.1  Description
6.1.3.7.4.2.2  Operation Definition
6.1.4  Custom Operations without associated resources  Word-p. 77
6.1.5  Notifications
6.1.5.1  General
6.1.5.2  SM Context Status Notification  Word-p. 78
6.1.5.2.1  Description
6.1.5.2.2  Notification Definition  Up
6.1.6  Data Model
6.1.6.1  General
6.1.6.2  Structured data types  Word-p. 84
6.1.6.2.1  Introduction
6.1.6.2.2  Type: SmContextCreateData  Word-p. 85
6.1.6.2.3  Type: SmContextCreatedData  Word-p. 92
6.1.6.2.4  Type: SmContextUpdateData  Word-p. 94
6.1.6.2.5  Type: SmContextUpdatedData  Word-p. 100
6.1.6.2.6  Type: SmContextReleaseData  Word-p. 103
6.1.6.2.7  Type: SmContextRetrieveData  Word-p. 105
6.1.6.2.8  Type: SmContextStatusNotification  Word-p. 106
6.1.6.2.9  Type: PduSessionCreateData  Word-p. 107
6.1.6.2.10  Type: PduSessionCreatedData  Word-p. 113
6.1.6.2.11  Type: HsmfUpdateData  Word-p. 117
6.1.6.2.12  Type: HsmfUpdatedData  Word-p. 123
6.1.6.2.13  Type: ReleaseData  Word-p. 124
6.1.6.2.14  Type: HsmfUpdateError  Word-p. 125
6.1.6.2.15  Type: VsmfUpdateData  Word-p. 126
6.1.6.2.16  Type: VsmfUpdatedData  Word-p. 130
6.1.6.2.17  Type: StatusNotification  Word-p. 132
6.1.6.2.18  Type: QosFlowItem
6.1.6.2.19  Type: QosFlowSetupItem
6.1.6.2.20  Type: QosFlowAddModifyRequestItem  Word-p. 133
6.1.6.2.21  Type: QosFlowReleaseRequestItem
6.1.6.2.22  Type: QosFlowProfile  Word-p. 134
6.1.6.2.23  Type: GbrQosFlowInformation
6.1.6.2.24  Type: QosFlowNotifyItem  Word-p. 135
6.1.6.2.25  Void
6.1.6.2.26  Void
6.1.6.2.27  Type: SmContextRetrievedData
6.1.6.2.28  Type: TunnelInfo  Word-p. 136
6.1.6.2.29  Type: StatusInfo  Up
6.1.6.2.30  Type: VsmfUpdateError  Word-p. 137
6.1.6.2.31  Type: EpsPdnCnxInfo  Word-p. 138
6.1.6.2.32  Type: EpsBearerInfo
6.1.6.2.33  Type: PduSessionNotifyItem
6.1.6.2.34  Type: EbiArpMapping
6.1.6.2.35  Type: SmContextCreateError
6.1.6.2.36  Type: SmContextUpdateError  Word-p. 139
6.1.6.2.37  Type: PduSessionCreateError  Word-p. 140
6.1.6.2.38  Type: MmeCapabilities
6.1.6.2.39  Type: SmContext [R16]  Word-p. 141
6.1.6.2.40  Type: ExemptionInd [R16]  Word-p. 143
6.1.6.2.41  Type: PsaInformation [R16]  Word-p. 144
6.1.6.2.42  Type: DnaiInformation [R16]
6.1.6.2.43  Type: N4Information [R16]  Word-p. 145
6.1.6.2.44  Type: IndirectDataForwardingTunnelInfo [R16]
6.1.6.2.45  Type: SmContextReleasedData [R16]  Word-p. 146
6.1.6.2.46  Type: ReleasedData [R16]
6.1.6.2.47  Type: SendMoDataReqData [R16]
6.1.6.2.48  Type: CnAssistedRanPara [R16]  Word-p. 147
6.1.6.3  Simple data types and enumerations  Up
6.1.6.3.1  Introduction
6.1.6.3.2  Simple data types
6.1.6.3.3  Enumeration: UpCnxState  Word-p. 148
6.1.6.3.4  Enumeration: HoState  Word-p. 149
6.1.6.3.5  Enumeration: RequestType
6.1.6.3.6  Enumeration: RequestIndication
6.1.6.3.7  Enumeration: NotificationCause
6.1.6.3.8  Enumeration: Cause  Word-p. 150
6.1.6.3.9  Enumeration: ResourceStatus
6.1.6.3.10  Enumeration: DnnSelectionMode  Word-p. 151
6.1.6.3.11  Enumeration: EpsInterworkingIndication
6.1.6.3.12  Enumeration: N2SmInfoType
6.1.6.3.13  Enumeration: MaxIntegrityProtectedDataRate  Word-p. 152
6.1.6.3.14  Enumeration: MaReleaseIndication [R16]
6.1.6.3.15  Enumeration: SmContextType [R16]
6.1.6.3.16  Enumeration: PsaIndication [R16]
6.1.6.3.17  Enumeration: N4MessageType [R16]
6.1.6.3.18  Enumeration: QosFlowAccessType [R16]  Word-p. 153
6.1.6.4  Binary data
6.1.6.4.1  Introduction  Up
6.1.6.4.2  N1 SM Message
6.1.6.4.3  N2 SM Information  Word-p. 154
6.1.6.4.4  n1SmInfoFromUe, n1SmInfoToUe, unknownN1SmInfo
6.1.6.4.5  N4 Message Payload [R16]  Word-p. 156
6.1.6.4.6  Mobile Originated Data [R16]
6.1.7  Error Handling  Word-p. 157
6.1.7.1  General
6.1.7.2  Protocol Errors
6.1.7.3  Application Errors
6.1.8  Feature Negotiation  Word-p. 160
6.1.9  Security  Word-p. 161
A (Normative)  OpenAPI specification  Word-p. 162
A.1  General
A.2  Nsmf_PDUSession API
B  HTTP Multipart Messages  Word-p. 205
B.1  Example of HTTP multipart message
B.1.1  General
B.1.2  Example HTTP multipart message with N1 SM Message binary data
C  Change history  Word-p. 207

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