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ETSI TS 129 173

M00003582

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ETSI TS 129 173 Digital cellular telecommunications system (Phase 2+); Universal Mobile (UMTS); LTE; Location Services (LCS); Diameter-based SLh interface for Control Plane LCS (3GPP TS 29.173 version 12.3.0 Release 12)

standard by European Telecommunications Standards Institute, 04/01/2015

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ETSI TS 129 173 describes the Diameter-based SLh interface between the GMLC and the HSS defined for theControl Plane LCS in EPC.

LCS procedures over the SLh interface are defined in the 3GPP TS 23.271 [2].

This specification defines the Diameter application for the GMLC-HSS, SLh reference point. The interactions betweenthe HSS and the GMLC are specified, including the signalling flows. As LCS procedures over the Diameter-based SLhinterface are identical to the MAP-based Lh interface, the descriptions of the Lh MAP operations defined in the 3GPPTS 29.002 [3] are mapped into the descriptions of the SLh Diameter commands.