1 Scope

29.3373GPPDiameter-based T4 Interface for communications with packet data networks and applicationsRelease 17TS

The present document describes the Diameter based interface between the Machine Type Communications-InterWorking Function (MTC-IWF) and the Short Message Service-Service Centre (SMS-SC) for communications with packet data networks and applications.

This specification defines the Diameter application for the T4 reference point between the MTC-IWF and the SMS-SC. The interactions between the MTC-IWF and the SMS-SC are specified.

MTC-IWF and SMS-SC (SMS-IWMSC) may also support the Diameter application for the SGd reference point to exchange SGd-OFR and SGd-OFA commands via T4. The stage 3 description for the SGd Diameter application is specified in 3GPP TS 29.338 [13].

The stage 2 description for communications with packet data networks and applications (architecture and functionality) is specified in the 3GPP TS 23.682 [2].