A.3 Deployment of FFAPP with Edge Enabler Layer

23.5453GPPApplication layer support for Factories of the Future (FF)Release 18TS

A.3.1 General

The architecture for edge enabler layer is specified in 3GPP TS 23.558 [7]. This clause describes the deployment of FF application layer services at Edge Data Network by utilizing the Edge Enabler Layer services.

A.3.2 Description

Figure A.3.2-1 illustrates the edge deployment example for the FFAPP. For simplicity, the reference points between enabler server and 5GS are omitted, and the reference points for inter-enabler server communication in the same enabler layer are also omitted. At UE side, FF Application Specific client(s) and FAE client interact with the Edge Enabler Client (EEC) via EDGE-5 reference point. In an Edge Data Network (EDN), FF Application Specific Server and FF Application Enabler server assume the role of EAS (Edge Application Server) and interacts with the Edge Enabler Server (EES) via EDGE-3 reference point, for instance, to register its profile into the EES. Upon service provisioning, the EEC interacts with the EES via EDGE-1 reference point, for instance, to discover FF Application Specific Server(s) and FF Application Enabler Server and further the EEC provides the discovered FF Application Specific Server(s) and FF Application Enabler Server to the FF Application Specific client and FF Application Enabler client respectively.

Figure A.3.2-1: Deployment of FFAPP with Edge Enabler Layer

In an EDN, there could be several EES(s) provided by the same or different ECSP. The FF application specific server(s) and FAE server shall be able to discover and register into an appropriate EES. If CAPIF is used, this can be done by utilizing the AEF serving area and/or the AEF location as described in 3GPP TS 23.222 [6]; otherwise, local configuration of the EES endpoint may be used.

Note that the services provided by EES over EDGE-3 are not re-exposed by the FAE server or SEAL servers to the FF application specific server but are directly consumed by the SEAL servers, FAE server and FF application specific server(s).

Annex B (Informative):
Involved entities and relationships