Introduction to 6G: The successor to 5G cellular technology is 6G (sixth-generation wireless). 6G networks will be able to operate at higher frequencies than 5G networks, resulting in significantly increased capacity and decreased latency. One of the aims of the 6G internet is to provide communication with one-microsecond latency. This is 1,000 times quicker than one millisecond throughput (or 1/1000th of the latency). 6G is planned to offer 1 terabyte per second of data speed. Through orthogonal frequency-division multiple access, access points can serve numerous customers simultaneously. This degree of capacity and latency will improve the performance of 5G applications while also broadening the range of capabilities to support new applications in wireless networking, cognition, sensing, and imaging. The market for 6G technology is predicted to enable significant advancements in imaging, presence technologies, and location awareness. The computational infrastructure of 6G will automatically select the ideal place for computing, including decisions regarding data storage, processing, and sharing, using artificial intelligence (AI). Several companies (Keysight, Nokia, Ericsson, Huawei, Samsung, LG, Apple, and Xiaomi), as well as several countries (China, India, Japan, and Singapore), have shown interest in 6G networks. 6G networks are expected to exhibit even more heterogeneity (be even more diverse) than their predecessors and are likely to support applications beyond current mobile use scenarios, such as virtual and augmented reality (VR/AR), ubiquitous instant communications, pervasive intelligence, and the Internet of Things (IoT). Impact of 6G on the development of smart cities: With the rise of automation and the use of virtual reality, the need for faster, more secure communication has grown. Sixth-generation communication is the new wireless communication typology. The 6G revolution will focus on how to link and govern billions of machines in our digital future, from macro to micro to nano. Extreme dependability will go hand in hand with lightning-fast speed. 6G will lay the groundwork for a framework of pervasive wireless intelligence that will benefit mankind for decades. Innovations that emerge when cutting-edge technology in numerous disciplines converges at a thrilling rate will fuel our future. 6G will benefit global health, transportation, logistics, security, and privacy, among other things. All of this will aid in the development of smart cities. 5G, IoT, automotive, Energy, High-speed digital, AI, data analytics, satellite, Optics, and Cybersecurity are some of the major appropriate solutions. Mobility, communications, energy, water, platforms, monitoring and control performance management, predictability, and forecasting are all linked systems and resources. 6G perceives a massive quantity of data at breakneck speed, computes it, manages it, and presents it to humans. The purpose of this study is to examine the benefits and requirements of 6G technology, as well as how they may affect the development of smart, intelligent, and sophisticated cities. Emerging Technology 6G would provide a canvas on which sophisticated processes and interfaces may function with minimal human intervention. Artificial intelligence, virtual reality, greater system capability, a larger data rate, radically dependable low-latency networks, big machine-sort communication, and increased information security and user experience are just a few of the major technologies that might be used on 6G changing networks. Other related technologies include smart wearable gadgets, space and underwater communication, medical implants, self-driving cars, and drones. Phlegmatic data transmission of up to 10 GBPS would be required for virtual reality-based devices. It is estimated that the 6G system-driven wireless property would be 1,000 times more cost-effective than 5G. All of this might lead to a well-designed society that observes and protects the environment, as well as catastrophe mitigation and management. Advances in network evolution and expansion 6G networks are likely to grow into new special-purpose network solutions while also achieving complete global coverage. To achieve these objectives, the 6G network must be built in such a way that it can smoothly combine a wide range of devices and sub-networks with integrated and distributed AI capability. To achieve this, the project will investigate device programmability in dedicated networks as well as optimized cloud-native radio access and core network designs, which will aid deployment and operational flexibility. Special-purpose network solutions must be equipped with 6G to expand into new and specialized application sectors. Enablers for human-machine interaction and completely immersive digital twins are necessary to grow beyond the digital realm and towards a fully integrated fabric. Building networks to enable human augmentation and digital-physical fusion use cases, as well as the digitization of the company in general, would necessitate an entirely new level of network and cloud cooperation and collaboration. With the consumability now expected from public cloud services, the cloud and the network will need to operate effortlessly together. Enterprises are rapidly embracing the benefits of public clouds and hybrid clouds, but strict latency requirements imply that centralized public clouds aren’t enough. As a result, a flexible solution that connects centralized, edge, and on-premises clouds via agile networks will be required. Of course, this necessitates not only coordination between the network and the cloud but also investment in both. New scenarios of 6G beyond 2030 Up to 2030, new application scenarios will continue to grow. Intelligent production, intelligent living, and intelligent society are the three kinds of scenarios. After 2030, a typical use case (Sodhro et al., 2020; Khan et al., 2020). Smart Manufacturing: By applying expanding technology to agriculture and manufacturing, the digital economy may outgrow itself. Informatization will help 6G attain intelligent manufacturing. Drones, for example, are used in agriculture. Production efficiency will be boosted by robotics and virtual reality. 6G will have more important intelligent manufacturing thanks to new technology such as digital twins. Smart Living: Network of Twin Bodily Areas In 2030, the internet of synesthesia and intelligent interaction will most likely revolutionize our lives. Smart Society: In 2030, the ubiquitous coverage network will significantly increase public service coverage while also bridging the digital gap between localities. Overall, a 6G network will improve social governance and provide the groundwork for a more prosperous society. Conclusion When new generations of wireless communication networks are built to meet future demands, existing technologies are upgraded and
