# 6G Use Cases and Scenarios: A Comparison Analysis Between ITU and Other Initiatives
## 5 Next G Alliance (NGA)  
NGA is a US initiative contributing to the USA's leadership within the future wireless technology sector [16]. NGA is focusing on technology commercialization and private companies' contribution. This initiative identifies 6G vertical market sectors like automotive, education, gaming, IoT, smart cities, public safety, mining, eHealth, and agriculture. 6G applications are anticipated to significantly expand North American markets by impacting several aspects of life, society, and industries, thereby transforming the way people live and work. These applications are expected to improve everyday living by providing services like healthcare, caregiving, and intelligent travel assistance. The workforce required to support these services will grow more prominent due to the global trend of an aging population. The need for intelligent assistance for humans is considered a great market potential and business opportunity. Moreover, in [17], NGA specifies four categories of use cases focused on improving people's lives and their interactions. These are described in Table 4.  
The first NGA use case category is about network-enabled robotic and autonomous systems. It includes (i) online cooperative operation in a group of service robots and (ii) field robots for hazardous environments, including multiple service robots working together and field robots for mission-critical tasks. \begin{table}
\begin{tabular}{c c} \hline \hline
**6G-IA Use Cases** & **Characteristics** \\ \hline \multirow{6}{*}{Emergency response and warning systems} & It aims to reduce emergency response times, support environmental sustainability in terms of surveyed natural habitats, favor the increase in protected and surveyed natural habitats, and preserve climate through user confidence in advanced digital devices. \\ \cline{2-3}  & It supports environmental sustainability and personal health in terms of urban transport optimization and avoiding injuries. \\ \hline \multirow{2}{*}{Personal health monitoring and actuation everywhere} & It contributes to the secure management of the user health data and to optimize cost-saving in the health care system. \\ \cline{2-3}  & It supports the reduction in the time for transport and good life in rural areas, encouraging the access to the internet. \\ \hline \multirow{2}{*}{Sustainable food production} & It supports the reduction in environmental footprint in the agriculture sector and the increase of agriculture productivity. \\ \cline{2-3}  & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: 6G-IA use cases [14]. The multi-sensory extended reality category comprises the following representative use cases: (i) ultra-realistic interactive sport, which is centered on drone racing, immersive gaming/entertainment on immersive gaming, and mixed reality co-design on remote collaboration within real and virtual worlds; (ii) mixed-reality telepresence use case focuses on 3D functionalities for remote social interactions; (iii) immersive education with 6G on remote schooling; (iv) high-speed wireless connection in the aerial vehicle for entertainment service on high-speed wireless connections in aerial vehicles for entertainment and service. The distributed sensing and communications use case category is divided into other representative use cases, including remote data collection and un-tethered wearables and implants. The first one analyzes data collected by LEO satellites and IoT in rural areas. In particular, untethered wearables and implants focus on wireless wearables. Public safety applications focus on solutions able to guarantee people's safety using advanced multimedia technologies, such as high-resolution video, by enhancing rules, regulations, security, and policy enforcement. The monitoring of critical infrastructures is another crucial aspect to be supported by the future 6G system. For example, in the case of railway, the integration of IoT devices with TNs and NTN is crucial to monitor and control the movement of trains and to check their status and behavior [18].