Views: 81 Author: Site Editor Publish Time: 2020-03-24 Origin: Site
The fifth-generation mobile communication technology, known as 5G or 5G technology, is the latest generation of cellular mobile communication technology and an extension of 4G (lte-a, WiMax), 3G (UMTS, LTE) and 2G (GSM) systems. The performance goals of 5G are high rates of data, reduced delays, energy savings, lower costs, improved system capacity and large-scale device connectivity.
The peak rate needs to reach the standard of Gbit/s to meet the demand of large data transmission in high definition video, virtual reality and so on.
The delay level of air interface needs to be about 1ms to meet the real-time application of autopilot and telemedicine.
Super network capacity should provide connection capacity of 100 billion devices to meet the Internet communication.
Spectrum efficiency is 10 times better than LTE.
With continuous wide-area coverage and high mobility, the experience rate reaches 100Mbit/s.
The flow density and connection number density are greatly increased.
The system is synergized, and the intelligence level is improved. Therefore, the performance is collaborative networking which is multi-user, multi-point, multi-antenna, multi-uptake.
These are the key differences between 5G and previous generations of mobile communication, which is the result of the gradual transformation of mobile communication from technology-centered to user-centered.
The technology of Internet of vehicles has experienced the stage of using the roadside unit (road sign) of wired communication and the 2G/3G/4G network to carry the vehicle-mounted information. Relying on the mobile communication technology, it is stepping into the era of automatic driving. According to the development plans of China, the United States, Japan and other countries, relying on the 5G network with higher transmission rate and lower delay, the mass production of self-driving cars will be fully realized by 2025, with the market scale reaching 1 trillion us dollars.
A Chinese surgeon performed the world's first tele-surgery using 5G technology on jan 19, 2019. The doctor operated on a robotic arm 30 miles away in a remote area of Fujian province using a 5G network. During the operation, surgeons removed the liver of an experimental animal with a 5G network because of a delay of just 0.1 second. Other benefits of 5G include a dramatic reduction in download times, from about 20 megabytes per second to 50 gigabytes per second. The most immediate application of 5G is likely to be improved video calls and gaming experiences, but robotic surgery is likely to hold great promise for professional surgeons performing operations on people in need around the world.
5G technology will open up many new applications for which previous standards of mobile data transmission were not fast enough. The speed and low latency of 5G network meet the requirements of telepresence and even remote surgery for the first time.
Due to the high requirements of the security of the power grid and the breadth of full coverage, the smart grid must achieve 99.999% reliability in the measuring and processing system of mass connection and wide coverage. Simultaneous access of a large number of terminal devices, ultra-low delay of less than 20 ms, deep coverage of the terminal and stable signal are the basic requirements for its safe operation.
The heat dissipation of 5G devices is also of great importance, they should be equipped with heatsink such as extruded heatsink, die casting heatsink, heat pipe heatsink, vapor chamber heatsink and so on, if you have any questions on heatsink, welcome to contact us.
