# A Real Case of Implementation of the Future 5G City
## 3 Future 5G City Use Cases
### 5G Use Cases and Services  
5G technology is designed to providing a wide range of services differing in requirements and in the type of devices, going beyond human-type communications. While current services are mainly focused on the personal communication paradigm, i.e., voice, instant messaging and social networks, multimedia streaming, and Internet browsing, in the future these will evolve towards the IoT paradigm. As a consequence, new 5G macro-applications will appear:  
* _industrial automation_: integration of sensors, robotics, and remote control.
* _transportation_: assisted driving, autonomous driving, smart sensors on vehicles, information on traffic and dangers, and visual empowered services (see-trough).
* _digitalization of the living environment_: smart home, smart city, street-light illuminations, smart energy grids, smart water and gas distribution, waste recycling, environment sustainability, and cultural heritage empowerment.
* _public safety services_: information system for police, and alert and management systems in case of natural disasters.
* _tele-presence services_: virtual reality, holograms, and virtual offices.
* _other systems of public utility_: health-care, education, and civic participation.  
The International Telecommunication Unit (ITU) has grouped a wide variety of use cases in three broad categories [25]:  
1. _Enhanced Mobile BroadBand (eMBB)_. 5G technology has to provide a high data rate and a low latency to step mobile services up a level, by allowing always-on always-connected mobile terminals with real-time reactivity. Seamless coverage and high mobility are needed in large areas with higher data rates than today, while a high user density and very high traffic capacity are needed in hotspots. Head-mounted displays for immersive experiences (augmented and/or virtual reality) will become a service that can be deployed everywhere.
2. _Massive Machine Type Communication (mMTC)_. This is one of the most expected 5G-enabled services: the possibility to interconnect a high density of devices (hundreds of thousands of devices per square kilometer). Literally everything can radiate and be connected. Typically these devices are characterized by a relatively low volume of data to transmit and by stringent power consumption constraints, and they must be low cost. For example, the Internet of Medical Things (IoMT) will provide new opportunities for both enterprises and users, globally.
3. _Ultra Reliable Low Latency Communication (URLLC)_. In this case, reliability, latency, and availability are the main requirements. The focus is on critical communications whose timely and accurate behavior impacts safety: monitoring and control must occur in real time. This is, for example, the case in industrial process control, automated vehicles, public protection, and disaster relief applications. Industrial communications will benefit enormously by the ultra reliable inter-connection as well as by the very low latency. Control of critical infrastructure or automated vehicles are only two of the top services that 5G will enable. For example, the vehicle-to-everything (V2X) technology will interconnect vehicles, pedestrians, road infrastructure and cloud, opening the possibility to use unmanned vehicles on the road.  
To have a differentiated while optimized wide variety of services, 5G must simultaneously support different combinations of stringent KPIs such as a high data rate, very low latency, high reliability and availability, great positioning accuracy, density of connected devices and network capacity. ITU hasdefined the minimum technical performance requirements for 5G [26]. Main KPIs are reported in Table 1 along with the use case for which they are relevant. These KPIs will be monitored according to the specific use case during the service tests phase, as specified later.