Mission-Critical Applications: Standardization and Spectrum Choice
The 3rd Generation Partnership (3GPP) started to standardize Mission-Critical Applications (MCA) in 2015 with the introduction of Priority and Preemption over LTE in Release 12. This standardization process enabled mobile broadband technologies such as 4G and 5G to have built-in critical communications mechanisms that can offer a more robust and reliable platform to end users—i.e., oil and gas companies, first responders (FirstNet)—as well as a mature and fast-growing ecosystem.
In addition, 4G and 5G allowed the introduction of new forms of information such as video-to-video communications, real-time video surveillance, and group voice calls, among others. To this end, the 3GPP standardized Critical Push to Talk (MCPTT) in R13 and Mission-Critical Data (MCDATA) and Mission-Critical Video (MCVIDEO) in R14, with additional improvements in R15. R16, frozen in July 2020, introduced improved features such as enhanced Ultra-Reliable Low Latency (eURLLC), the Future Railway Mobile Communication System (FRMCS), Time-Sensitive Networking (TSN), …
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