There is no doubt that 5G is the hottest technology nowadays, and it is also the topic that everyone is concerned about. It is called the word 'time' because it has unlimited possibilities and will have a major impact on the development of all walks of life. At present, mobile phone manufacturers have begun to develop 5G mobile phones, and telecom operators are also planning to deploy 5G networks. Recently, China Mobile announced that it will conduct 5G testing in five cities including Suzhou, Hangzhou, Shanghai, Wuhan and Guangzhou, and will launch it in 2019. Provide 5G network access services for consumers in the year.
In recent years, with the increase in the number of mobile phone users and the demand for network speed, the development of mobile communication can be described by high speed. From the mobile 3G network in 2009, to the current 4G network, to the upcoming 5G network, This total use took less than 10 years. Just when everyone focused on the 5G network, information about the 6G network was revealed.
At this year's MWCA 2018 (United States Mobile World Congress), US Federal Communications Commission (FCC) Commissioner Jessica Rosenworcel stated in his speech that 6G networks will move towards terahertz (THz) frequencies and will also introduce blockchain-based Dynamic band sharing technology. He said that the development of mobile communication in recent decades is mainly to increase the capacity and speed of the Internet. Therefore, as the spectrum of mobile communication increases, its frequency band is also getting higher and higher. Currently, 5G has entered. The millimeter wave band, and 6G is likely to enter the terahertz (THz) era.
What can terahertz bring? In general, it can bring a higher speed Internet experience. Terahertz waves refer to electromagnetic waves from 0.1THz to 3THz, 1THz=1000GHz. At present, the 4G network used by everyone is at the megahertz level, the network The transmission rate is limited. Taking mobile 4G as an example, it is mainly 130MHz spectrum, the frequency band is 1880-1900MHz, 2320-2370MHz, 2575-2635MHz, the theoretical peak downlink transmission rate is only 100Mbps, and the communication industry is actively exploring the untapped terahertz. In the frequency band, existing manufacturers have achieved a communication rate of 100 Gbps in the 300 GHz band.
In addition to the breakthrough in network transmission speed, 6G also greatly reduces network delay, which makes the stability of the network environment increase, and is expected to solve the problem of Internet of Everything. 6G network will realize global seamless by integrating satellite communication into 6G mobile communication. Coverage, allowing network signals to reach any remote village, allowing patients in deep mountain areas to receive telemedicine and allowing children to receive distance education.
At the same time, with the support of 6G network, the global satellite positioning system, the telecommunication satellite system, and the earth image satellite system will all be upgraded, coordinated and cooperated. In the future, the full coverage network of the ground and space can help us predict the weather and respond quickly. Natural disasters, etc.
Faced with such potential communication technologies, some countries in Europe and the United States have begun to develop 6G technology, and our country has not left behind others in this key technology, and has begun relevant research work. In March of this year, Minister of Industry and Information Technology Miao Wei was interviewed. It has been revealed that since the end of 2017, the Ministry of Industry and Information Technology has begun to study the 6G development era.
Although 5G is currently the most sought-after technology in the industry, but with the continuous expansion of its connection scale, network pressure will also increase. And 6G as an extension of 5G, not only can make up for the defects of 5G network, but also bring new Technological innovations, such as the recent booming artificial intelligence, new materials, open source and other technologies. The current 5G competition has begun, I believe that in the near future, the 6G competition will also be fierce.
