KEY DIRECTIONS OF CELLULAR NETWORK RESEARCH ON THE WAY TO 6G (REVIEW)
Keywords:5G, 6G, network, technologies, 3GPP
Modern cellular communication networks are developing at a very fast pace. The advent of 5G mobile technology is already showing signs of becoming a major enabler of productivity and is expected to be a key enabler for highly anticipated, highly integrated and autonomous applications in many sectors. This new wave of technology will accelerate the digitalization of the economy and society. Full deployment of fifth-generation commercial networks has begun around the world. In these networks, very high indicators of the quality of subscriber service are achieved. However, with the development of cellular technologies and the digital society in general, fundamentally new use cases arise that will require even more improved indicators of the effectiveness of the functioning of cellular communication networks. In this regard, progress does not stand still and the 3GPP organization has developed a plan for the development of cellular networks, improving their characteristics and putting them into operation. The next generation of mobile communication networks will be 6G. Research on the way to 6G is planned for this decade and, accordingly, is already taking place, and full launch into commercial operation is planned for 2030. That is why this study examines mobile technologies on the way to 6G. In particular, the work presents a high-level vision of the 6G ecosystem, analyzed potential requirements, and new emerging challenges. Thus, the main goal of this work is to carry out a critical analysis of the latest improvements made in the 5G mobile system, to identify their shortcomings and, accordingly, directions for improvement. The evolution and enhanced features of 5G have also been analyzed in detail to anticipate critical requirements for 6G while highlighting their new capabilities. Several potential scenarios of 6G applications were proposed, their advantages and basic concepts were discussed. Based on this, the main directions of research were formed with the aim of improving cellular networks on the way to 6G. And it is clear that these key areas of improvements in cellular networks will become the basis for building a digital wireless world in the future.
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