## 2 Worldwide 6G Goals and Expectations
Some applications that will be supported by the 6G system are maps and localizations, which means the rural areas will benefit from the services with the wide and strong transmission within the right settings. Other wireless technologies can be used together with the 6G network as hybrid systems including WiFi, light fidelity (LiFi), and/or other broadband systems. The transition to Industry 4.0 and the initial phase of wireless-enabled automation will occur prior to the 2030s. Fifth-generation systems offering ultra-reliable minimal latency connections will enable real-time computing in the cloud computing, including task scheduling in cloud environment [52]. Nevertheless, applications in industry necessitating significantly more strict demands for wireless connectivity will need 6G. For example, holographic virtual presence is going to be standard for professional and everyday interactions. It will be feasible to create the illusion of being in a specific position while actually residing in another, such as looking to be in the office while being situated in a vehicle. We will develop technologies that integrate current face expressions with an avatar that appears in the virtual illustration of any genuine environment. There will be extensive utilization of mobile robot groups and drones [53; 54] across multiple sectors, including tourism, healthcare, warehousing, and parcel delivery. Active digital twins in the digital age, featuring progressively precise and synchronized refreshes of the physical environment, will serve as a crucial platform for enhancing cognitivey among humans. From the aforementioned view of the future, we may derive different key use cases, including augmented reality, telepresence, security monitoring and surveillance, and more. This encompasses the capabilities that 5G will facilitate, alongside widespread adoption anticipated within the 6G period, utilizing novel technology, in addition to a range of new use cases made possible by these 6G innovations. In 2030 as well as thereafter, the rapid advancement of informatization and digitalization will create a new realm of digital twins [55], where each tangible object possesses an online counterpart, as seen in Figure 7. The virtual realm creates a conduit for the effortless exchange of information and intelligence among individuals, between humans and objects, and even among objects themselves within the living creature. The digital realm simulates and forecasts the live entity, precisely mirroring and anticipating its actual condition. The modelling and anticipation of biological entities from the virtual realm may also be employed to pre-emptively intervene in the operations of a living entity or the physical world, thereby mitigating risks and calami  
Figure 6: Network support for the man–machine applications and services for the community. Figure 7: Illustration of the digital twin. Detailed explanations of anticipated needs pertaining to the vision will be provided in the paragraphs that follow. First, 6G should be a fully merged network that covers more ground and has better reception in more places. This includes both land and satellite connectivity as well as short-range communication among devices. Second, 6G is anticipated to operate at greater frequencies in order to attain a broader bandwidth, including mmWave, Terahertz, visible light, and others. With a maximum transfer rate of 1 Tb/s and a user encounter data rate of 10 Gb/s, 6G may achieve a data rate that is 10 to 100 times higher than 5G. Further improvement of reusing frequency productivity is possible with 6G's dynamic frequency-sharing solution. Third, 6G is a smart, tailored network. When 6G and AI come together, personal mobile communication will become a reality. Instead of a standard function-centralized system, there will be a new three-centralized model: user-centred, data-centred, and completely content-centred. Fourth, the 6G system will incorporate operational security into the architecture or use an internal security mechanism.