3 Definitions of terms, symbols and abbreviations

23.5483GPP5G System Enhancements for Edge ComputingRelease 17Stage 2TS

3.1 Terms

For the purposes of the present document, the terms given in TR 21.905 [1], TS 23.501 [2] 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 [1] and TS 23.501 [2].

Central DNS resolver/server: A DNS resolver/server centrally deployed by the 5GC operator or 3rd party and is responsible for resolving the UE DNS Queries into suitable Edge Application Server (EAS) IP address(es).

Edge Application Server: An Application Server resident in the Edge Hosting Environment.

Edge Hosting Environment: An environment providing support required for Edge Application Server’s execution.

Local part of DN: The set of network entities of a DN that are deployed locally. The local access to the DN provides access to the local part of DN.

Local DNS resolver/server: A DNS resolver/server that may be locally deployed by 5GC operator or 3rd parties within the Local DN, and is responsible for resolving UE DNS Queries into suitable EAS IP address(es) within the local DN. The L-DNS resolvers/servers may or may not have connectivity with C-DNS depending on the deployment.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1], TS 23.501 [2] 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 [1] and TS 23.501 [2].

C-DNS Central DNS

C-NEF Central NEF

C-PSA UPF Central PSA UPF

EAS Edge Application Server

EASDF Edge Application Server Discovery Function

ECS Edge Configuration Server

EDC Edge DNS Client

EEC Edge Enabler Client

EES Edge Enabler Server

EHE Edge Hosting Environment

L-DN Local part of DN

L-DNS Local DNS

L-NEF Local NEF

L-PSA UPF Local PSA UPF