![]() ![]() ![]() Mission Critical Push to Talk in 3GPP Rel-13ģGPP entered the application domain by standardizing Mission Critical Push to Talk (MCPTT) in Rel-13, completed in 2016. This allows public safety operators to determine whether critical communications occur on-network using the LTE network infrastructure, or off-network without the use of the LTE network infrastructure, or both. Additionally, D2D Proximity Based Services (ProSe) was enhanced to support public safety use. For example, MC Services benefit from the use of multicast bearers in LTE due to the standardisation of eMBMS and Group Communication System Enablers (GCSE). Prior to Rel-13, 3GPP standardized functionality that was later to serve as an enabler for MC Services. We plan to create a more detailed paper on MC Services, which will summarize the use cases and functional aspects of Rel-13, Rel-14 and upcoming Rel-15, later this year.ĭriven by the 3GPP release schedule, the mission critical related functionalities have been phased across them, each release encompassing a complete set of standards for equipment vendors and operators to phase their implementations and deployments, based on market demands. This article provides an overview of what was achieved so far in the MC domain within 3GPP and also gives an outlook of what can be expected in the near future. A platform for mission critical (MC) communications and MC Services has been a key priority of 3GPP in recent years and is expected to evolve into the future by taking more requirements, from different sectors of the global critical communications industry, on board. ![]()
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