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Content for  TS 29.508  Word version:  17.1.0

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1  ScopeWord‑p. 6

The present specification provides the stage 3 definition of the Session Management Event Exposure Service (Nsmf_EventExposure) of the 5G System.
The stage 2 definition and procedures of the Session Management Event Exposure Service are contained in TS 23.502 and TS 23.503. The 5G System Architecture is defined in TS 23.501.
Stage 3 call flows for policy and charging control use cases are provided in TS 29.513.
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition of the 5G System are specified in TS 29.500 and TS 29.501.
The Session Management Event Exposure Service is provided by the Session Management Function (SMF). This service exposes events related to PDU Sessions observed at the SMF.
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2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.501: "System Architecture for the 5G System; Stage 2".
[3]
TS 23.502: "Procedures for the 5G System; Stage 2".
[4]
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[5]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[6]
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[7]
TS 29.513: "5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3".
[8]
RFC 7540:  "Hypertext Transfer Protocol Version 2 (HTTP/2)".
[9]
RFC 8259:  "The JavaScript Object Notation (JSON) Data Interchange Format".
[10]
OpenAPI, "OpenAPI 3.0.0 Specification": https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md.
[11]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces Stage 3".
[12]
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
[13]
TS 29.518: "5G System; Access and Mobility Management Services; Stage 3".
[14]
TS 29.512: "5G System; Session Management Policy Control Service; Stage 3".
[15]
TS 33.501: "Security architecture and procedures for 5G system".
[16]
RFC 6749:  "The OAuth 2.0 Authorization Framework".
[18]
RFC 7807:  "Problem Details for HTTP APIs".
[19]
TR 21.900: "Technical Specification Group working methods".
[20]
TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
[21]
TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services".
[22]
TS 29.514: "5G System; Policy Authorization Service; Stage 3".
[23]
TS 29.244: "Interface between the Control Plane and the User Plane of EPC Nodes".
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3  Definitions and abbreviationsWord‑p. 7

3.1  Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.

3.2  Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
AF
Application Function
AMBR
Aggregate Maximum Bit Rate
AMF
Access and Mobility Management Function
API
Application Programming Interface
DDD
Downlink Data Delivery
DNAI
DN Access Identifier
DNN
Data Network Name
FQDN
Fully Qualified Domain Name
GPSI
Generic Public Subscription Identifier
GUAMI
Globally Unique AMF Identifier
HTTP
Hypertext Transfer Protocol
H-SMF
Home SMF
I-SMF
Intermediate SMF
JSON
JavaScript Object Notation
NEF
Network Exposure Function
NF
Network Function
NRF
Network Repository Function
NSSAI
Network Slice Selection Assistance Information
NWDAF
Network Data Analytics Function
SMF
Session Management Function
SUPI
Subscription Permanent Identifier
S-NSSAI
Single Network Slice Selection Assistance Information
PCF
Policy Control Function
PRA
Presence Reporting Area
QFI
QoS Flow Identifier
UDM
Unified Data Management
UPF
User Plane Function
V-SMF
Visited SMF
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