3GPP SA6 EDGEAPP - global5g.org

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15G Vertical User Webinar Series - 3GPP Edge Computing Standards - SA6 EDGEAPP – April 22, 2021

3GPP SA6 EDGEAPPArchitecture for enabling Edge Applications

Suresh CHITTURI

3GPP SA6 Chairman

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Outline

Introduction to 3GPP SA6

Overview of 3GPP EDGEAPP (3GPP TS 23.558)

Industry harmonization• ETSI (ISG) MEC

• GSMA OPG

Conclusion

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Introduction to 3GPP SA6

Suresh ChitturiSA6 [email protected]

Alan SolowaySA6 [email protected]

Jukka VialenSA6 [email protected]

MCPTT 5.0

MCData 4.0

Railways 3.0

MCIOPS

MCOver5GS

Edge Applications (EDGEAPP)

5G Message Service

(5GMARCH)

Factories of the future (FFAPP)

Unmanned Aerial Systems

(UASAPP)

V2XAPP 2.0

MCPTT 3.0

MCVideo 2.0

MCData 2.0

MC Interworking

Railways

CAPIF

MCPTT 4.0

MCData 3.0

MC Interworking

2.0

Railways 2.0

MC MBMS API

MC Location

(Study)

MC Logging

SEAL

CAPIF 2.0

V2XAPP

Rel-13

Rel-14

Rel-15

Rel-16

MCPTT 2.0

MCVideo

MCDataMCPTT

Mar 2016 Jun 2017 Jun 2018 June 2020

Standards

Timeline

Dec 2021*

Rel-17SA6 Leadership SA6 ActivitiesToR

expansion

Established

Dec 2014

mailto:[email protected]



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3GPP SA6 Participation

Agencies Operators Vendors Researchers

CATT

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3GPP Edge Computing

Edge Computing is a major focus area in 3GPP Rel-17• SA6: Application layer architecture, and deployment scenarios (FS_EDGEAPP, EDGEAPP)

• SA2: System Architecture enhancement for supporting Edge Computing (enh_EC, eEDGE_5GC)

• SA3: Security aspects for supporting SA2 eEDGE_5GC and SA6 EDGEAPP (FS_eEDGE_Se)

• SA5: Management aspects on Edge Computing (FS_Eedge_Mgt)

3GPP Rel-17 Timeline

2019 2020Rel-17 Stage-1

Rel-17 Stage-2

Rel-17 Stage-3

2021

SA2 FS_Enh_EC SA2 Enh_EC

SA6 FS_EDGEAPP (completed)

Rel-17 Stage-3 aspects of EDGEAPP

SA6 EDGEAPP

Rel-17

SA2

SA3

SA5

SA6

CT

SA5 (SID+WID) Mgmt. aspects for EDGEAPP

SA3 (SID+WID) Security for EDGEAPP/Enh_EC

Today

2022

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Edge Application Enablement

Application developers require support• for Application Clients to locate, connect and switch to

the most suitable Application Server on the Edge.

• for Application Servers on the Edge to utilize the underlying 3GPP network to provide best possible

services.

The Edge Enabler Layer developed by SA6 (3GPP EDGEAPP) provides such capabilities with easy to integrate APIs – allowing Application Developers to focus better on application features.

Application Layer

Edge Enabler Layer

Edge Hosting EnvironmentEdge Management

Layer

3GPP Transport Layer

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EDGEAPP – Overview

Architecture Principles• Application Portability: Minimize changes to the

Application Client logic and Edge Application Server compared to existing cloud environment

• Service differentiation: The MNO should be able to provide service differentiation (e.g. by enabling/disabling the Edge Computing features).

• Flexible deployment: The MNO should be able to support multiple ECSPs within its network. Also, the MNO should be able to selectively enable the service in a subarea of the MNO network.

• Interworking with 3GPP network: Provide access to 3GPP network capabilities (such as location service, QoS management, AF traffic influence) to the Edge Application Servers.

Business Relationships

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Application Layer Architecture

Edge Application Server(s) and the Edge Enabler Server are contained within the Edge Data Network .

The Edge Configuration Server provides configurations related to the EES, including details of the Edge Data Network hosting the EES.

The UE contains Application Client(s) and the Edge Enabler Client.

The Edge Application Server(s), the Edge Enabler Server and the Edge Configuration Server may interact with the 3GPP Core Network.

The Edge Enabler Client and Edge Application Server are only service consumers and do not provide any service

Service Based Representation

Reference-point Based Representation

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EDGEAPP – Key Features

• Service Provisioning: Enabling a UE with an Edge Enabler Client to find and connect to available Edge Data Networks with appropriate NW configurations.

• EAS Discovery: Enable rich discovery of EAS (discovery beyond IP address; such as server capacity, operation characteristics, support for service continuity, service area, schedule etc.).

• EES capability exposure: Provide value added services to the Edge Application Servers as APIs exposed by the Edge Enabler Server (UE Location, UE ID, QoS, UP events, AC information, etc.)

• Network capability exposure: Provide Edge Application Servers and enabling layer with access to capability APIs exposed by the Core Network (NEF/SCEF, AF Traffic Influence)

• Service Continuity: Support Edge Application Server and the Application Clients in transfer of application context from one Edge Application Server to another, while minimizing service interruption. Also, maintain Edge Enabler Client’s context across Edge Enabler Servers during mobility.

• Security: 3GPP credentials based authentication and authorization for Edge Computing services.

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Support for CAPIF, SEAL and Verticals

TS 23.558 provides guidance for deploying vertical applications on the Edge, along with the support of 3GPP’s Common API Framework (CAPIF) and Service Enabler Architecture Layer (SEAL).

AF

AMF SMF

PCF UDMNRFNEF

AUSF

Nausf Namf Nsmf

NpcfNnrfNnef Nudm Naf

NSSF

Nnssf

Base Station, User Plane functions

IoT Devices

Edge Enabler Client

Edge Data Network

Edge Application Servers

Edge Configuration Server

Service Provisioning of the UEs

Discover and accessEdge Application Servers

in proximity

3GPP Core Network

Cloud Applications

Edge Enabler Client

Edge Enabler Server

Service Enabler Architecture Layer

Group Mgmt.

Location Mgmt.

Config Mgmt.

Common API Framework

API registry

API mgmt. Security

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Relationship with ETSI MEC

ETSI White Paper #36 provides more details on achieving synergy between the two architectures.

The paper is available here.

https://www.etsi.org/images/files/ETSIWhitePapers/ETSI_wp36_Harmonizing-standards-for-edge-computing.pdf

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Relationship with GSMA OPG

GSMA Whitepaper OPG.01: "Operator Platform: Telco Edge Proposal” is available here.

UE 3GPP CN

Application Client(s)

Edge Application

Server(s)

Edge Enabler Server(s)

Edge Enabler Client


EDGE-5

EDGE-6

EDGE-3

EDGE-4

Edge Management system

OP UNI

EDGE-1

EDGE-7

OP SBI-NREdge Enabler

Server(s)


EDGE-6

OP E/WBI

EDGE-9

OP NBI

EDGE-2

EDGE-8

OP SBI-CR

Operator platform Operator platform

https://www.gsma.com/futurenetworks/wp-content/uploads/2020/10/GSMA-Operator-Platform-Proposal-Oct-2020.pdf

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Conclusion

• 3GPP Rel-17: Edge Computing is a major feature of Rel-17 (5G Phase 3)

• Edge-native capabilities: Enables native support to Edge computing within 3GPP Networks, including tight integration with core network, USIM-based authentication

• Flexible Architecture: Allows flexible deployment models and business relationships e.g. multiple Edge computing service providers

• Advanced application features: Application context relocation/service continuity, EES capability exposure/APIs, service-based architecture

• Synergies with ETSI MEC and GSMA OPG: Commonalities can be exploited on application enablement

More information: www.3gpp.org Technical specification: 3GPP TS 23.558

http://www.3gpp.org/

https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3723

3GPP SA6 EDGEAPP - global5g.org

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