Standing in the moment to look back at history, Chinese mobile communications people must not forget today 20 years ago. In January 1998, the Xiangshan Conference, which influenced China's 3G decision-making, was held. The meeting withstood the pressure of domestic and foreign suspicion and firmly supported Chinese enterprises to submit the Chinese standard TD-SCDMA in the 3G era to the International Telecommunications Standardization Organization. This broke the monopoly of developed countries on mobile communication standards and became one of the three major standards in the global 3G era. . In the past 20 years, China Mobile Communications has achieved a leap from “2G follow-up†and “3G breakthrough†to “4G synchronizationâ€. China-driven TD-LTE-Advanced has become one of the two major 4G standards in the world. The pursuit of higher performance mobile communications has never stopped, and now 5G is coming to us. China is continuing to work hard and strive to become one of the global leaders in the 5G era by 2020. Let us wait and see. 1 What is 5G? More than just "fast" An ambulance screamed into the night of the city. The car was a vicious hero. In the recent mission, he was seriously injured and his life was in danger. Driver Lao Gui’s forehead oozes sweat. The difficulty is really big: it coincides with the city's late peak, and it takes 48 traffic lights to drive to the hospital; the gold rescue period is only half an hour, and the experts who can handle such difficult surgery are still on the high-speed rail thousands of miles away... However, Lao Gui still keeps calm, because he knows that he has already voiced the voice to the brain of the smart city. The smart city brain will adjust the city's traffic lights according to the ambulance's route and guide other vehicles to avoid. Sure enough, the ambulance went all the way and arrived at the hospital as quickly as possible. When Director Ye received a phone call from the hospital, he was on a high-speed railway with a speed of 500 kilometers per hour. In an emergency, he first used high-definition (3D) video with an ambulance and command center for real-time consultation to determine the surgical plan. Later, wearing VR equipment, "immersively" control the medical robot in the ambulance to complete the remote operation without delay and high precision, and gain valuable time for the injured to receive subsequent higher-level treatment. Under different time and space, Directors Gui Gui and Ye were all sighed with relief. In the battle for death, they left a good son for the people and left a good father for the young daughter. If human beings enter the 5G era, then the fictional story scenes of the above reporters will have a high probability of becoming a reality. Because all of this is achieved by the premise that there is a communication network with very high speed, very large capacity and very low latency above our head – the fifth generation mobile communication network. 5G, not just as simple as 4G "faster". In 2015, the ITU (International Telecommunication Union) officially defined three major application scenarios and eight capability indicators for 5G. The data shows that 5G can increase the user experience rate by 1000 times to 1G per second, and it includes at least two other disruptive features: Low latency and high reliability. 5G can be implemented on high-speed rails with a speed of 500 kilometers per hour, with delays as low as 1 millisecond, which makes accurate remote synchronization possible, and thus enables emerging industries such as driverless, vehicle networking, and industrial automation to have a network foundation. Low power consumption, large connection. 5G can connect 1 million sensors in one square kilometer at the same time, which makes ultra-large-scale data acquisition and processing possible, making smart cities and the Internet of Things within reach. This shows that 5G can not only "go up the upper floors" in the traditional 4G technology scene, but also "open up the ground" in the field where 4G has not been involved. "It is like the popular saying in the industry, '4G changes life, 5G changes society'. The vision of 5G is to realize the interconnection of all things. The future changes of 5G to ordinary users will be reflected in all aspects of social life." China Information and Communication Research Institute is responsible for People told this reporter. 2 Which step does China 5G take? From technology development to product development The trend of the times, the future has come. In the face of opportunities, major countries around the world have proposed 5G test plans, and strive to lead the global 5G standards and industry development. China Mobile Communications Technology started late, but it is gradually becoming a global leader in the development of 5G standards. In February 2013, the Ministry of Industry and Information Technology, the National Development and Reform Commission and the Ministry of Science and Technology jointly promoted the establishment of the “IMT-2020 (5G) Promotion Group†(hereinafter referred to as the Promotion Group), which is responsible for coordinating the promotion of 5G technology research and development. In January 2014, the National 863 Program launched a major project for the early research of 5G mobile communication systems, striving to break through the key technologies of 5G mobile communication and become one of the leading forces in the research and technology development of 5G international standards. At the same time, the “New Generation Broadband Wireless Mobile Communication Network†national science and technology major project also comprehensively promoted 5G research and development. In September 2015, Vice Premier Ma Kai of the State Council pointed out at the signing ceremony of the China-EU 5G Strategic Cooperation Joint Statement that China will strive to achieve 5G network commercialization by 2020. According to the relevant person in charge of the China Information and Communication Research Institute, China has achieved a series of phased results in terms of 5G demand, technical standards and industrialization, with great attention from the government, enterprises and scientific research institutions. On the demand side, important results such as the 5G typical scenario and key capability indicator system proposed by China have been adopted by the ITU, which provides strong support for the global unified 5G standard. In terms of technical standards, core technologies such as new network architecture, polarization code, and large-scale antennas promoted by Chinese enterprises are included in the 3GPP (3rd Generation Partnership Project) international standards, and China's technological innovation capability has become one of the world's leading mobile communication technologies. One of the leading forces with standards. In terms of industrialization, China took the lead in launching 5G technology R&D trials, planning the world's largest 5G test environment in Huairou, Beijing, and comprehensively developing R&D of 5G systems, terminals, chips, meters and other products. At present, China's 5G system equipment, chips and other core equipment research and development is in the global 5G first echelon. So on the timeline, which step has China's 5G technology research and development taken? According to the “5G Technology R&D Test Overall Plan†issued by the Promotion Group, China's 5G test is divided into two steps: 2015-2018 is the technology research and development test; 2018-2020 is the product development test. The technology research and development experiment is divided into three stages: September 2015-September 2016 is the key technology verification stage, and is compared by the Chinese Academy of Engineering, Mr. He Hezhen, as the “Kindergarten Picture Literacy Stageâ€; September 2016-2017 9 In the verification phase of the technical solution, the single technology is integrated into one device, and the “primary school textbook†phase is entered from “seeing literacyâ€; the system solution verification phase is from June to April 2017. At present, China is in the “finished†stage of 5G technology research and development. This stage will focus on verifying the networking technology performance of 5G systems and conducting demonstrations of 5G typical services, laying a good foundation for the next step of operating enterprises to conduct product testing. 3 How far is 5G from us? Commercialization by 2020 According to the "Global 5G Development Status and Trends" released by the TD Industry Alliance in December 2017, countries, regions such as the United States, Japan, South Korea and Europe have begun to deploy and deploy 5G commercial networks. US telecommunications operator AT&T plans to launch 5G communication services in the United States in the second half of 2018; Verizon Telecom announced that it will provide fixed 5G wireless services in 3-5 cities in the United States starting in the second half of 2018. South Korea plans to offer 5G trial commercial services at the PyeongChang Winter Olympics in 2018; Japan plans to provide 5G services at the 2020 Tokyo Olympics. To this end, mainstream operators in various countries have launched their own 5G scale business schedule. China still has not fallen behind this time. In November 2017, the National Development and Reform Commission issued the “Notice on Organizing the Implementation of the Next Generation Information Infrastructure Construction Project in 2018†(hereinafter referred to as the “Noticeâ€). One of the three key support projects is the “5G scale network construction and application demonstration projectâ€. The Notice clearly states that 5G network construction should be carried out in no less than 5 cities in 2018; China Mobile, China Telecom and China Unicom must declare all three operators; at least 4K HD, augmented reality, virtual reality, drones Two types of typical 5G services and applications. Now that we are at the beginning of 2018, the next thing that will happen next year is to look forward to it. Of course, China's 5G development is by no means easy and easy to achieve. 2018 is the key period for 5G technology research and development and product research and development. To meet China's 5G commercial target in 2020, we need to work together with upstream and downstream manufacturers in the country and the industry chain. "To take the operator as the leader, to drive the system with the application, to drive the device with the system, to drive the terminal with the device, to drive the chip with the terminal, and at the same time to drive the weak links of software, antenna and instrument." Academician He Hezhen said. The relevant person in charge of the China Information and Communication Research Institute also pointed out that at the national level, it is necessary to actively promote the 5G scientific research layout, spectrum planning and international cooperation, make up for the shortcomings in the development of China's 5G industry as soon as possible, and create a good development environment for China's 5G development; System and chip equipment manufacturers should accelerate product research and development based on 5G international standards, and rely on the 5G technology research and development test platform developed by China to conduct full test and verification, build a complete 5G industry chain, and promote the maturity of 5G products; It is necessary to accelerate the integration of 5G and industry applications, and actively explore the application needs and business models of 5G industry. As expected in the industry, on January 3, 2018, the “5G Application†working group was established in Beijing. This is a powerful measure for China to consolidate its industrial strength and promote the maturity of 5G industry application solutions. It will vigorously promote the integration and application innovation of 5G and vertical industries, laying a good foundation for the successful commercialization of 5G in 2020. 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