Tag Archives: Communication

what do you know about 5G?

When it comes to 5G, the most classic and intuitive statement: Users can download a high-definition movie in just a few seconds, and now the 4G LTE network takes ten or even dozens of minutes. The role of 5G is far more than that. As the transmission rate increases, other emerging applications will also emerge, such as the Internet of Things, virtual reality, and autonomous vehicles.

There are three typical scenarios for 5G. These three scenarios reflect that the 5G requirement also reflects the difference between 5G and 4G. As shown in the figure above, the three major scenarios are: eMBB, eMTC, uRLLC.

eMBB provides higher transmission rate and user experience. The peak transmission rate of 5G and downlink rates will reach 20Gb/s, while the downlink peak rate of 4G is only 1Gb/s. The ultra-high rate will make virtual reality, augmented reality, etc. possible. eMTC will realize the Internet of Everything, smart home, smart power grid, etc.; uRLLC can reduce the communication delay to less than milliseconds, realize tactile interconnection, and the delay in 4G is about 70ms, 5G ultra-low communication delay and high reliability can realize automatic driving of the car.

For example, 5G network provides foundation for automatic driving.

During the automatic driving process, the vehicle collects a large amount of data through a large number of cameras and sensors, and needs to interact with transportation facilities and other traffic participants. The communication of these data requires a sufficiently wide channel to operate.