4 Overview

29.5573GPP5G SystemApplication Function ProSe ServiceRelease 18Stage 3TS

The Application Function ProSe (Naf_ProSe) Service, as defined in clause 7.2.2 of 3GPP TS 23.304 [14], is provided by the Application Function (AF) which owns the functionality of ProSe Application Server.

Figure 4-1 and figure 4-2 provide the reference architecture (in service based interface representation and reference point representation), with focus on the ProSe Service of the Application Function.

Figure 4-1: Naf_ProSe Service architecture, SBI representation

The Naf_ProSe Service is part of the Naf service-based interface exhibited by the AF. The service is provided by the AF and consumed by NF service consumers (e.g. 5G DDNMF), as shown in figure 4-1 for the SBI representation and figure 4-2 for the reference point model.

Figure 4-2: Naf_ProSe Service architecture, reference point representation