ETSI TS 123 558 V17.14.0 (2025-07)

5G; Architecture for enabling Edge Applications (3GPP TS 23.558 version 17.14.0 Release 17)

RTS/TSGS-0623558vhe0

General Information

• Status: Not Published
• Technical Committee: 3GPP SA 6 - Mission-critical applications
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 21-Jul-2025

Standards Content (Sample)

TECHNICAL SPECIFICATION
5G;
Architecture for enabling Edge Applications
(3GPP TS 23.558 version 17.14.0 Release 17)

3GPP TS 23.558 version 17.14.0 Release 17 1 ETSI TS 123 558 V17.14.0 (2025-07)

Reference
RTS/TSGS-0623558vhe0
Keywords
5G
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3GPP TS 23.558 version 17.14.0 Release 17 2 ETSI TS 123 558 V17.14.0 (2025-07)
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ETSI
3GPP TS 23.558 version 17.14.0 Release 17 3 ETSI TS 123 558 V17.14.0 (2025-07)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 12
Introduction . 12
1 Scope . 13
2 References . 13
3 Definitions of terms, symbols and abbreviations . 14
3.1 Terms . 14
3.2 Symbols . 15
3.3 Abbreviations . 15
4 Overview . 15
4.1 General . 15
4.2 Service provisioning . 16
4.3 Registration . 16
4.4 EAS discovery . 16
4.5 Capability exposure to EAS . 16
4.6 Support for service continuity . 16
4.7 Security . 17
4.8 Dynamic EAS instantiation triggering . 17
4.9 Charging . 17
5 Architectural requirements . 17
5.1 General . 17
5.2 Architectural requirements . 17
5.2.1 General requirements . 17
5.2.1.1 General . 17
5.2.1.2 Requirements . 17
5.2.2 Edge configuration data . 17
5.2.2.1 General . 17
5.2.2.2 Requirements . 17
5.2.3 Registration . 18
5.2.3.1 General . 18
5.2.3.2 EEC registration . 18
5.2.3.3 EAS registration . 18
5.2.3.4 EES registration . 18
5.2.4 EAS discovery . 18
5.2.4.1 General . 18
5.2.4.2 Requirements . 18
5.2.5 Capability exposure to EASs . 19
5.2.5.1 General . 19
5.2.5.2 Requirements . 19
5.2.6 Security . 19
5.2.6.1 General . 19
5.2.6.2 Requirements . 19
5.2.7 Subscription service . 19
5.2.7.1 General . 19
5.2.7.2 Requirements . 19
5.2.8 Traffic management . 20
5.2.8.1 General . 20
5.2.8.2 Requirements . 20
5.2.9 Lifecycle management . 20
5.2.9.1 General . 20
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5.2.9.2 Requirements . 20
5.2.10 Edge application KPIs . 20
5.2.10.1 General . 20
5.2.10.2 Requirements . 20
5.2.11 Service continuity . 20
5.2.11.1 General . 20
5.2.11.2 Requirements . 21
6 Application layer architecture . 21
6.1 General . 21
6.2 Architecture . 21
6.3 Functional entities . 23
6.3.1 General . 23
6.3.2 Edge Enabler Server (EES) . 23
6.3.3 Edge Enabler Client (EEC) . 24
6.3.4 Edge Configuration Server (ECS) . 24
6.3.5 Application Client (AC) . 24
6.3.6 Edge Application Server (EAS) . 24
6.4 Service-based interfaces . 25
6.5 Reference Points . 25
6.5.1 General . 25
6.5.2 EDGE-1 . 25
6.5.3 EDGE-2 . 25
6.5.4 EDGE-3 . 26
6.5.5 EDGE-4 . 26
6.5.6 EDGE-5 . 26
6.5.7 EDGE-6 . 26
6.5.8 EDGE-7 . 26
6.5.9 EDGE-8 . 26
6.5.10 EDGE-9 . 27
6.6 Cardinality rules . 28
6.6.1 General . 28
6.6.2 Functional Entity Cardinality . 28
6.6.2.1 General . 28
6.6.2.2 AC . 28
6.6.2.3 EEC . 28
6.6.2.4 ECS . 28
6.6.2.5 EES . 28
6.6.2.6 EAS . 28
6.6.3 Reference Point Cardinality . 29
6.6.3.1 General . 29
6.6.3.2 EDGE-1 (Between EEC and EES) . 29
6.6.3.3 EDGE-3 (Between EAS and EES) . 29
6.6.3.4 EDGE-4 (Between EEC and ECS) . 29
6.6.3.5 EDGE-5 (Between AC and EEC) . 29
6.6.3.6 EDGE-6 (Between EES and ECS) . 29
6.6.3.7 EDGE-9 (Between EES and EES) . 29
6.7 Capability exposure for enabling edge applications . 29
6.7.1 General . 29
6.7.2 APIs provided by the Edge Enabler Layer . 30
7 Identities and commonly used values . 31
7.1 General . 31
7.2 Identities . 31
7.2.1 General . 31
7.2.2 Edge Enabler Client ID (EECID) . 31
7.2.3 Edge Enabler Server ID (EESID) . 31
7.2.4 Edge Application Server ID (EASID) . 32
7.2.5 Application Client ID (ACID) . 32
7.2.6 UE ID . 32
7.2.7 UE Group ID. 32
7.2.8 EEC Context ID . 32
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7.3 Commonly used values . 32
7.3.1 General . 32
7.3.2 UE location . 32
7.3.3 Service areas . 33
7.3.3.1 General . 33
7.3.3.2 Topological Service Area . 33
7.3.3.3 Geographical Service Area. 33
7.3.3.4 EDN service area . 33
7.3.3.5 EES Service Area . 33
7.3.3.6 EAS service area . 34
8 Procedures and information flows . 34
8.1 General . 34
8.2 Common Information Elements . 34
8.2.1 General . 34
8.2.2 AC Profile . 34
8.2.3 AC Service KPIs . 34
8.2.4 EAS Profile . 35
8.2.5 EAS Service KPIs . 35
8.2.6 EES Profile . 36
8.2.7 Topological Service Area . 36
8.2.8 EEC Context . 37
8.2.9 Geographical Service Area . 37
8.3 ECS Discovery and Service provisioning . 38
8.3.1 General . 38
8.3.2 ECS Discovery . 39
8.3.2.1 General . 39
8.3.2.2 Procedures . 40
8.3.2.2.1 General . 40
8.3.2.3 Information flows . 40
8.3.2.3.1 General . 40
8.3.2.4 APIs. 40
8.3.2.4.1 General . 40
8.3.3 Service provisioning . 40
8.3.3.1 General . 40
8.3.3.2 Procedures . 40
8.3.3.2.1 General . 40
8.3.3.2.2 Request-response model . 40
8.3.3.2.3 Subscribe-notify model . 42
8.3.3.2.3.1 General . 42
8.3.3.2.3.2 Subscribe . 42
8.3.3.2.3.3 Notify . 43
8.3.3.2.3.4 Subscription update . 44
8.3.3.2.3.5 Unsubscribe . 45
8.3.3.3 Information flows . 45
8.3.3.3.1 General . 45
8.3.3.3.2 Service provisioning request . 46
8.3.3.3.3 Service provisioning response . 46
8.3.3.3.4 Service provisioning subscription request . 47
8.3.3.3.5 Service provisioning subscription response . 48
8.3.3.3.6 Service provisioning notification . 48
8.3.3.3.7 Service provisioning subscription update request . 48
8.3.3.3.8 Service provisioning subscription update response . 49
8.3.3.3.9 Service provisioning unsubscribe request. 49
8.3.3.3.10 Service provisioning unsubscribe response . 49
8.3.3.4 APIs. 50
8.3.3.4.1 General . 50
8.3.3.4.2 Eecs_ServiceProvisioning_Request operation . 50
8.3.3.4.3 Eecs_ServiceProvisioning_Subscribe operation . 50
8.3.3.4.4 Eecs_ServiceProvisioning_Notify operation . 50
8.3.3.4.5 Eecs_ServiceProvisioning_UpdateSubscription operation . 50
8.3.3.4.6 Eecs_ServiceProvisioning_Unsubscribe operation . 51
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8.4 Registration . 51
8.4.1 General . 51
8.4.2 EEC Registration . 51
8.4.2.1 General . 51
8.4.2.2 Procedures . 51
8.4.2.2.1 General . 51
8.4.2.2.2 EEC registration . 51
8.4.2.2.3 EEC registration update . 53
8.4.2.2.4 EEC de-registration . 53
8.4.2.3 Information flows . 54
8.4.2.3.1 General . 54
8.4.2.3.2 EEC registration request . 54
8.4.2.3.3 EEC registration response . 55
8.4.2.3.4 EEC registration update request . 55
8.4.2.3.5 EEC registration update response . 56
8.4.2.3.6 EEC de-registration request . 56
8.4.2.3.7 EEC de-registration response . 56
8.4.2.4 APIs. 57
8.4.2.4.1 General . 57
8.4.2.4.2 Eees_EECRegistration_Request operation . 57
8.4.2.4.3 Eees_EECRegistration_Update operation . 57
8.4.2.4.4 Eees_EECRegistration_Deregister operation . 57
8.4.3 EAS Registration . 58
8.4.3.1 General . 58
8.4.3.2 Procedures . 58
8.4.3.2.1 General . 58
8.4.3.2.2 EAS registration . 58
8.4.3.2.3 EAS registration update . 59
8.4.3.2.4 EAS de-registration . 59
8.4.3.3 Information flows . 60
8.4.3.3.1 General . 60
8.4.3.3.2 EAS registration request . 60
8.4.3.3.3 EAS registration response . 60
8.4.3.3.4 EAS registration update request . 61
8.4.3.3.5 EAS registration update response . 61
8.4.3.3.6 EAS de-registration request . 61
8.4.3.3.7 EAS de-registration response . 62
8.4.3.4 APIs. 62
8.4.3.4.1 General . 62
8.4.3.4.2 Eees_EASRegistration_Request operation . 62
8.4.3.4.3 Eees_EASRegistration_Update operation . 62
8.4.3.4.4 Eees_EASRegistration_Deregister operation . 62
8.4.4 EES Registration . 63
8.4.4.1 General . 63
8.4.4.2 Procedures . 63
8.4.4.2.1 General . 63
8.4.4.2.2 EES registration . 63
8.4.4.2.3 EES registration update . 63
8.4.4.2.4 EES de-registration . 64
8.4.4.3 Information elements . 65
8.4.4.3.1 General . 65
8.4.4.3.2 EES registration request . 65
8.4.4.3.3 EES registration response . 65
8.4.4.3.4 EES registration update request . 65
8.4.4.3.5 EES registration update response . 65
8.4.4.3.6 EES de-registration request . 66
8.4.4.3.7 EES de-registration response . 66
8.4.4.4 APIs. 66
8.4.4.4.1 General . 66
8.4.4.4.2 Eecs_EESRegistration_Request operation . 66
8.4.4.4.3 Eecs_EESRegistration_Update operation . 67
8.4.4.4.4 Eecs_EESRegistration_Deregister operation . 67
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8.5 EAS discovery . 67
8.5.1 General . 67
8.5.2 Procedures.
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