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TS 29.508 (CT3) ★
5GS — Session Management Event Exposure Service

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V16.1.0 (Wzip) 2019/09 40 p.

V15.5.0 (PDF) 2019/09 37 p.

Symbolic representation of 5GS Nsmf services

Rapporteur: Dr. Belling, Thomas
See also:

TS 29.502 for the Nsmf_PDUSession Service

The present specification provides the stage 3 definition of the Nsmf Session Management Event Exposure Service of the 5G System. This service exposes events related to PDU Sessions observed at the SMF.

Nsmf_EventExposure

full Table of Contents for TS 29.508 Word version: 16.1.0

1 Scope Word-p. 6

3 Definitions and abbreviations Word-p. 7

3.1 Definitions

3.2 Abbreviations

4 Session Management Event Exposure Service

4.1 Service Description

4.1.2 Service Architecture Word-p. 8

4.1.3 Network Functions Word-p. 9

4.1.3.1 Session Management Function (SMF)

4.1.3.2 NF Service Consumers

4.2 Service Operations Word-p. 10

4.2.1 Introduction

4.2.2 Nsmf_EventExposure_Notify Service Operation

4.2.2.1 General

4.2.2.2 Notification about subscribed events

4.2.3 Nsmf_EventExposure_Subscribe Service Operation Word-p. 13

4.2.3.1 General

4.2.3.2 Creating a new subscription

4.2.3.3 Modifying an existing subscription Word-p. 15

4.2.4 Nsmf_EventExposure_UnSubscribe Service Operation Word-p. 16

4.2.4.1 General

4.2.4.2 Unsubscription from event notifications

4.2.5 Nsmf_EventExposure_AppRelocationInfo Service Operation [R16]

4.2.5.1 General

4.2.5.2 Acknowledgement of Notification about subscribed events Word-p. 17

5 Nsmf_EventExposure API

5.1 Introduction

5.2 Usage of HTTP Word-p. 18

5.2.2 HTTP standard headers

5.2.2.1 General

5.2.2.2 Content type

5.2.3 HTTP custom headers

5.3.1 Resource Structure

5.3.2 Resource: SMF Notification Subscriptions Word-p. 19

5.3.2.1 Description

5.3.2.2 Resource definition

5.3.2.3 Resource Standard Methods

5.3.2.4 Resource Custom Operations Word-p. 20

5.3.3 Resource: Individual SMF Notification Subscription

5.3.3.1 Description

5.3.3.2 Resource definition

5.3.3.3 Resource Standard Methods

5.3.3.3.2 PUT Word-p. 21

5.3.3.3.3 DELETE

5.3.3.4 Resource Custom Operations Word-p. 22

5.4 Custom Operations without associated resources

5.5 Notifications

5.5.2 Event Notification

5.5.2.1 Description

5.5.2.2 Target URI

5.5.2.3 Standard Methods

5.5.3 Acknowledgement of event notification [R16] Word-p. 23

5.5.3.1 Description

5.5.3.2 Target URI

5.5.3.3 Standard Methods

5.6 Data Model Word-p. 24

5.6.2 Structured data types Word-p. 25

5.6.2.1 Introduction

5.6.2.2 Type NsmfEventExposure Word-p. 26

5.6.2.3 Type NsmfEventExposureNotification Word-p. 27

5.6.2.4 Type EventSubscription

5.6.2.5 Type EventNotification Word-p. 28

5.6.2.6 Type DddTrafficDescriptor [R16] Word-p. 29

5.6.2.7 Type AckOfNotify [R16]

5.6.3 Simple data types and enumerations

5.6.3.1 Introduction

5.6.3.2 Simple data types Word-p. 30

5.6.3.3 Enumeration: SmfEvent

5.6.3.4 Enumeration: NotificationMethod

5.6.3.5 Enumeration: DddStatus [R16] Word-p. 31

5.7 Error handling

5.7.2 Protocol Errors

5.7.3 Application Errors

5.8 Feature negotiation

5.9 Security Word-p. 32

A (Normative) OpenAPI specification Word-p. 33

A.2 Nsmf_EventExposure API

B Change history Word-p. 40