4 Overview

29.5403GPP5G SystemRelease 18SMS ServicesStage 3TS

Within the 5GC, the SMSF offers services to the AMF, SMS-GMSC, IP-SM-GW and SMS Router via the Nsmsf service based interface (see 3GPP TS 23.501 [2], 3GPP TS 23.502 [3] and 3GPP TS 23.540 [21]).

Figures 4.1 provides the reference model (in service based interface representation and in reference point representation), with focus on the SMSF and the scope of the present specification.

Figure 4-1: Reference model – SMSF

The functionalities supported by the SMSF are listed in clause 6.2.13 of 3GPP TS 23.501 [2].

The services and service operations provided by the Nsmsf interface are listed in clause 5.2.9 of 3GPP TS 23.502 [3] and clause 6.4 of 3GPP TS 23.540 [21].