Mobile communication refers to the utilization of technology that permits us to communicate with people across the globe. Our day – day life has become easier with the advent of wireless communication. Every ten years or so, mobile communications undergo a generational shift. While 5G technology becoming more commercialized, there is already significant interest in systems beyond 5G, i.e.; 6G wireless systems. Following that, we interpret barrier for practically feasible system solutions across all layers of OSI (Open system interconnection), based on which we examine key challenges and achievability of system solutions. Because many of the 6g applications may require considerable amount of magnitude, of varying frequency between 100 GHz - 1 THz. As a result, a wide range of frequency bands, from 6 GHz to 1 THz, are supported by the 6G environment. This review research identifies several prospective problems and issues. Following that, we describe major possible aspects of 6G to provide a state-of-the-art for future research. Technology prospects, problems, critical areas, and related issues and its used cases are briefly reviewed in this study. Keeping this in mind, we concentrate on recent research challenges and recent advanced technologies and applications.

Mobile Communication, 6G Technology, Applications.