5G refers to the fifth generation of mobile communication technology, the latest generation of cellular mobile communication technology, and the extension after 4G, 3G and 2G systems. The performance goals of 5G are high data rate, low latency, energy saving, low cost, high system capacity and large-scale equipment connection.

5G applications are not only mobile phones, but also for future VR and AR, smart cities, smart agriculture, industrial Internet, car networking, driverless, smart home, smart medical care, drones, emergency safety and so on. The simple understanding of 5G is to connect everything you want with the fastest speed and highest efficiency.

Second, change.

1, car networking and autonomous driving

Vehicle networking technology has gone through the stage of using line-side units (road signs) and 2G/3G/4G networks to carry vehicle information services, and is gradually entering the era of automatic driving relying on high-speed mobile communication technology.

According to the automobile 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 in 2025, and the market scale will reach 1 trillion US dollars.

2. Surgery

20 1965438+1October19, a surgeon in China performed the world's first remote operation with 5G technology. The doctor used the 5G network in Fujian Province to operate the robotic arm in a remote area 30 miles away. During the operation, because the delay was only 0. 1 sec, the surgeon removed the liver of an experimental animal with 5G network.

Other benefits of 5G technology include greatly reducing the download time, and increasing the download speed from about 20 megabytes per second to 50 gigabytes per second-equivalent to downloading more than 65,438+00 HD movies in 65,438+0 seconds.

The most direct application of 5G technology is likely to improve the video call and game experience, but robot surgery is likely to bring great hope to professional surgeons and perform surgery for people in need all over the world.

5G technology will open up many new application fields, and the previous mobile data transmission standards are not fast enough for these fields. The speed and low latency of 5G network meet the requirements of telepresence and even remote surgery for the first time.

3. Smart grid

Due to the high security requirements of power grid and the breadth characteristics of full coverage, smart grid must achieve 99.999% high reliability in the measurement and processing system with massive connection and wide coverage; A large number of terminal devices are connected at the same time, ultra-low delay less than 20 ms, deep coverage of terminals and stable signal are the basic requirements for its safe operation.

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The development course of 5G

20 13 February, the EU announced that it would allocate 50 million euros. Accelerate the development of 5G mobile technology and plan to introduce mature standards in 2020? .

20 13 on may13, Samsung galaxy co., ltd announced the successful development of the core technology of the fifth generation mobile communication (5G), which is expected to be commercialized in 2020.

20 14 On May 8th, Japanese telecom operator NTT DoCoMo announced that it will cooperate with Ericsson, Nokia and Samsung to start testing high-speed 5G networks, which is 1000 times higher than the existing 4G networks, and the transmission speed is expected to increase to 10Gbps. The outdoor test is expected to start on 20 15, and it is expected to start running in 2020.

On September 7th, 20 15, American mobile operator Verizon Wireless announced that it will try out the 5G network from 20 16, and 20 17 will be fully commercialized in some cities in the United States. China's 5G technology research and development test will be conducted on 20 16-20 18, which will be divided into three stages: 5G key technology test, 5G technical scheme verification and 5G system verification.

On February 9, 20 17, the international communication standard organization 3GPP announced the official logo of "5G". ?

2017165438+1October 15 The Ministry of Industry and Information Technology issued the Notice on Matters Related to the Use of 3300-3600MHz and 4800-5000MHz Frequency Bands in the Fifth Generation Mobile Communication System, which determined the 5G IF spectrum, which can give consideration to system coverage and large capacity. ?

2017165438+1in late October, China's Ministry of Industry and Information Technology issued a notice to officially start the third phase of the 5G technology research and development experiment, and strive to achieve the basic objectives of the third phase experiment before the end of 20 18.

20 17 12 2 1, at the 78th plenary meeting of 3GPP RAN, the first edition of 5G NR was officially frozen. ?

2017,65438 In February, the National Development and Reform Commission issued the Notice on Organizing the Implementation of the New Generation Information Infrastructure Construction Project in 20 18, requiring that in 20 18, 5G-scale networking pilot projects will be carried out in no less than five cities, with no less than 50 5G base stations in each city and no less than 500 5G terminals in the whole network.

On February 23rd, 20 18, on the eve of the Mobile World Congress, Vodafone and Huawei announced that they had jointly completed the world's first 5G call test in Spain by adopting the subordinate 3GPP 5G new wireless standard and Sub6 GHz frequency band.

On February 27th, 20 18, Huawei released the first 3GPP standard 5G commercial chip Ba Long 5G0 1 and 5G commercial terminal at MWC20 18, which supports the global mainstream 5G frequency bands, including Sub6GHz (low frequency) and mmWave (high frequency). Theoretically, it can achieve a data download rate of up to 2.3Gbps?

On June 3rd, 20 18, the SA(Standalone) scheme of 3GPP 5NR standard was officially completed and released at the 80th TSG RAN Plenary Session of 3GPP, which marked the official release of the first truly complete international 5G standard. ?

On June 4th, 20 18, the 3GPP plenary session (TSG#80) approved to freeze the independent networking function of the 5th generation mobile communication technical standard (5G NR). Coupled with the NR standard of subordinate networking completed in February 2007 and 2065438, 5G has completed the first stage of full-function standardization and entered a new stage of all-round industrial sprint.

2065438+On June 28th, 2008, China Unicom announced the deployment of 5G: SA will be the target architecture, eMBB will be the mainstay in the early stage, and the 5G network is planned to be officially commercialized in 2020.

On August 2, 20 18, Audi and Ericsson announced that they planned to take the lead in using 5G technology in automobile production. At Audi's headquarters in Ingolstadt, Germany, the two companies reached an agreement on a series of activities to discuss the potential of 5G as a future-oriented communication technology to meet the high requirements of automobile production.

2018165438+1October 2 1, the first continuous coverage experimental zone in Chongqing was built, and many 5G applications such as 5G remote driving, 5G unmanned aerial vehicles and virtual reality were unveiled at the same time.

20 18 12 1, South Korea's three major operators SK, KT and LG U+ simultaneously launched 5G services in some parts of South Korea, which is the first time that a new generation of mobile communication services have been commercialized on a global scale. The first application areas of 5G services are Seoul, the metropolitan area and the city centers of six wide-area cities in South Korea, and the scope will be expanded in the future.

On February 7, 20 18, 18, the Ministry of Industry and Information Technology agreed that China Unicom Group would use the frequency of 3500MHz-3600MHz from the date of notification to June 30, 2020 to carry out the fifth generation mobile communication (5G) system test in China. 12 10, the Ministry of Industry and Information Technology officially announced that it would issue licenses to China Telecom, China Mobile and China Unicom for the use of low and intermediate frequency test frequencies in 5G systems.

20 18 12 18，at & amp； T announced that it will take the lead in launching the 5G network service in two cities in the United States1February 2. ?

On February 20th, 20 19, South Korea's Deputy Prime Minister and Minister of Planning and Finance Hong Nanji mentioned that at the end of March 20th19, South Korea will realize the first commercial use of 5G in the world.

On June 6th, 20 19, the Ministry of Industry and Information Technology officially issued 5G commercial licenses to China Telecom, China Mobile, China Unicom and China Radio and Television, and China officially entered the first year of 5G commercialization.

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