4 Introduction

23.2833GPPMission Critical Communication Interworking with Land Mobile Radio SystemsRelease 18TS

Mission critical users currently employ a wide range of LMR mission critical Push To Talk services, and associated data capabilities where available.

The present document describes the architecture to support the interworking between the MC system and the LMR system to satisfy interworking requirements specified in 3GPP TS 22.179 [3] and 3GPP TS 22.282 [4]. Other LMR technologies may interwork as long as they conform to the present document.

The IWF, along with its LMR system, will appear as a peer interconnected MC system. This is meant as an approach for defining interactions on the IWF interface but is not intended to specify the functionality of the IWF nor meant to mandate a deployment model.