## 4 The 5G Use Cases and Spectrum Requirements
### Key 5G Applications  
Currently, 5G technology supports a wide range of applications that bring user experience to an almost unimaginable mobile communication era. A few of the numerous applications are discussed in this section. 1. Multimedia and Entertainment: Downloading videos account for more than 50% of all mobile internet traffic [9]. Future developments will undoubtedly see a rise in this tendency, spreading video streaming more widely. High-speed 4K video streaming with crystal-clear audio will be available with 5G, creating a high-definition virtual environment on mobile devices. In the future, VR and augmented reality (AR) will be incredibly simple to deploy because of 5G's low-latency and high-definition transmission. 2. Satellite Services: A major challenge with remote areas is limited connectivity due to the unavailability of ground base stations (BS). With the introduction of 5G technology, satellite systems will be deployed to provide network services and ensure unhindered connectivity at remote locations using a constellation of numerous tiny satellites. 3. Smart Homes: Smart home devices and equipment are currently in high demand. The 5G network allows for high-speed communication as well as smart appliance monitoring, bringing the concept of smart homes closer to reality. Smart home products using the 5G network may be readily accessible and set up from distant locations since it provides an extremely fast, low-latency connection. 4. High-Speed Mobile Network: The next generation of mobile network technology, 5G, offers extraordinarily fast download speeds of up to 10-20 Gbps. The 5G network functions similarly to a fiber optic internet connection. In contrast to all prior mobile transmission technologies, 5G effectively delivers high-speed data access as well as voice. Mission-critical and autonomous driving applications benefit greatly from 5G's connection delay of less than one millisecond. 5G will transfer data through millimeter waves, which provide much wider bandwidth and higher data throughput than lower LTE bands. 5. Mission-Critical Applications and Healthcare: Modern medicine is made possible by 5G technology, enabling practitioners and doctors to offer cutting-edge medical services. As a result, all classes can connect via 5G networks. Attending lectures and seminars will be simpler. Patients can now consult doctors virtually for advice via 5G technology platforms. Smart Medical is a tool created by scientists to aid those with chronic illnesses. Smart gadgets, medical internet, smart sensors, medical HD imaging technology, and intelligent analytic systems are all made possible by 5G networks for the healthcare sector. With the help of 5G, one can easily access cloud storage and health information from anywhere globally. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Classification** & **General Classification** & **5G Frequency Band** & **Sample Application** & **Comments** \\ \hline Low-band & Below 1 GHz & 600 MHz, 700 MHz & Broadcast TV & Spectrum at the lower band (below 1 GHz) is ultimate for deploying 5G coverage and enabling IoT services in urban, suburban, and rural areas. \\ \hline Mid-band & Above 2 GHz & 2300 MHz, 2600 MHz, 3300-3800 MHz, 3800-4200 MHz, 4400-4900 MHz & Fixed satellite, fixed service (point-to-point, point-to-multipoint) & The 3.5 GHz frequency of the mid-band spectrum provides an excellent balance of capacity and coverage. \\ \hline High-band & Above 6 GHz & 26 GHz (24.25–27.5 GHz), 28 GHz (27.5–29.5 GHz), 37–43.5 GHz, 45.5–47 GHz, 47.2–48.2 GHz, 66-71 GHz & Satellite service, space research, earth exploration & High-band spectrum is ideal for ultra-high-speed, short-range applications that require low latency (such as at 26 and 40 GHz). \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Division of 5G frequency ranges. Drones for Use in IoT: Awesome photographs from various top views are being delivered from different angles with the use of drones. They are also of paramount importance for inspecting the environment for security reasons.