# 6G Mobile Networks: Key Technologies, Directions, and Advances
## 3 6G Market Overview and Current Status
### 6G Applications  
There will be full AI integration in the 6G communication networks. All networks would make use of AI for monitoring, management, physical layer signal analysis, strategic planning, provider connections, etc. This ought to facilitate the sector's digital transformation as it moves toward Industry 4.0, the industrial production revolution. The various application of the 6G network is as follows:  
1. Ultra smart cities: Potential scenarios in an ultra-smart city would call for data rates around 1 Tbps, 3D connectivity, localization within 1 cm, and the reliability of 99.99%, for example, for autonomous vehicles, e-health, or smart industries. The measurements required for such apps in a smart city cannot be managed by 5G networks. Most 6G users will need mobility assistance between 240 and 1200 km/h. In order to coordinate while moving at high speeds, a self-driving car needs to interact with other vehicles and roadside sensors. In a different situation, drones would be needed to track the cars and act as information relays or hover ground stations for cross-communication. Extremely diminished-delay connectivity is among the essential criteria for autonomous cars and judgement, and under the aforementioned scenarios, 6G ought to be able to provide it [31]. 2. Multi-dimension Materiality: Online games that incorporate user-machine interaction with extremely high-quality graphics data and use AR or VR technologies generate a lot of data. Soon, 3D games and other cross-media will combine VR and AR to create totally immersive gaming experiences that reproduce reality utilising all five senses. The remarkable capacity, reliability, and information rate we need to convey enhanced information across a wireless medium will be made available by 6G. To put it another  
Autonomous Driving, Unmanned-Aerial-Vehicles (UAVs), Social Internet of Things (S-IoT), and IIoT, are extensively evaluated and assessed. They are briefed as below:  
* 6G for Healthcare-Internet-of-Things (HiIoT): By utilizing its technological solutions, 6G connectivity will transform the Internet of Things. In reality, to accomplish virtually significant health service with a quick and accurate remote medical, healthcare areas like remote patient monitoring demand reduced delay communications with the consistency requirement of over 99% [33]. It's worth noting that with such a milliseconds latency and high reliability, 6G-robotics may indeed be utilised to do remote operations, enabling doctors who are located elsewhere to direct the process using robotic tools. Specifically, agreements are being implemented that really can take power over the exchange of health information throughout the operation and automated verification for demands for health information [34]. * 6G for Vehicular-Internet-of-Things (VIoT) and Autonomous-Driving (AD): The development of 6G technology has drastically altered vehicle IoT networks, which has revolutionised smart transportation systems. The study uses mMTCs in VIoT networks on 6G to enable V2X communication for the transmission of brief automotive data payloads by a large number of vehicles without the need for human interaction. In order to arrange available radio resources for V2X data connections within the specified frequency budget, signature features like time frames and hashing techniques are updated to reduce the likelihood of false positives. To fully utilise the potential of vehicle intelligence in VIoT, cutting-edge intelligence features with machine learning are integrated alongside the road components, which are responsible for evaluating traffic volume and weather forecasts relying on the accumulation of measurements from automobiles [34]. * 6G for Unmanned-Aerial-Vehicles (UAVs): UAVs network enables 6G-based broad IoT with simply a focus on UAV aviation process optimization. To do this, the issue of maximising the effectiveness of sending data must be addressed, taking into account large-scale channel status, onboard energy, and interfering temperature limitations.