4 Overview

29.5153GPP5G SystemGateway Mobile Location ServicesRelease 18Stage 3TS

The Gateway Mobile Location Centre (GMLC) is the network entity in the 5G Core Network (5GC) supporting Location Services (LCS). Within the 5GC, the GMLC offers services to the AMF, GMLC and NEF via the Ngmlc service based interface (see 3GPP TS 23.501 [2] and 3GPP TS 23.502 [3]).

Figure 4-1 provides the reference model (in service based interface representation and in reference point representation), with focus on the GMLC:

Figure 4-1: Reference model – GMLC

The functionalities supported by the GMLC are listed in clause 4.3.3 of 3GPP TS 23.273 [4].