The need for networking infrastructure has greatly increased in the growing number of mobile devices. Higher data rates for new applications have pushed the existing technologies further forward. There were greater capacities and more effective deployments from 1G networks to 4G networks. However, the new 4G systems are now drained. With its latest technologies, 5G, the next version of networks, will overcome 4G problems, enabling mo-bile devices to be built again. We provide a theoretical perspective on technologies planned to be used in 5G systems in this article, including the addition of a brief review of previous mobile generations (1G to 4G) to illustrate 5G advantages. This paper also emphasizes the value of URLLC in line with technology and market requirements in the near period. The fields of study open to further analysis in the application of URLLC are outlined, and URLLC is successfully applied.