5G refers to the fifth generation of mobile communication technology. Unlike the previous four generations, 5G is not a single wireless technology, but a convergence of existing wireless communication technologies.
The existing 4G network has limited processing power and cannot support some high-definition video, high-quality voice, augmented reality, virtual reality and other services. 5G will introduce more advanced technologies to meet the growth of mobile service traffic through higher spectrum efficiency, more spectrum resources and more dense cells, to solve the problems faced by 4G networks, and to build a high-speed transmission rate and high. A network society with capacity, low latency, high reliability, and excellent user experience.
From the application submitted by the operator to the Ministry of Industry and Information Technology, China's three major operators will carry out 5G pilot projects in 13 cities, including cities in the north, Guangzhou, Shenzhen, Wuhan, Chengdu, Tianjin, and Nanjing. Among them, Mobile will first launch 5G testing in five cities: Hangzhou, Shanghai, Guangzhou, Suzhou and Wuhan. In addition, it will conduct 5G services and application demonstrations in 12 cities including Beijing, Chengdu and Shenzhen, covering 4K HD. , augmented reality, virtual reality, drones, etc.
The pilot cities of Unicom are: Beijing, Tianjin, Shanghai, Shenzhen, Hangzhou, Nanjing, Xiong'an; pilot cities for telecommunications: Chengdu, Xiong'an, Shenzhen, Shanghai, Suzhou, and Lanzhou. It is worth noting that among many cities, Shanghai is the only city where the three major operators are piloting.
It is understood that China Telecom's first 5G base station is opened in Shenzhen, the time is October 27 this year.
On November 8, China Telecom provided network security and opened 5G base stations in Xiong'an. Field test data shows that 5G can be improved by about 20 times compared to the existing peak experience of 4G users.
Earlier in August, China Telecom announced the launch of the 5G innovation demonstration network in Xiong County, Xiong'an New District, Hebei Province, striving to achieve 5G commercial trials in 2019 and 5G commercialization in 2020. The opening of the 5G base station indicates that China Telecom's progress has accelerated slightly.
The opening hours of 5G base stations in China Telecom's six major cities are quite intensive. The reason is very simple. The six cities themselves are the 5G pilot cities previously determined by China Telecom, and they are well prepared.
On November 10, China Telecom opened the 5G base station in Suzhou, in Shanghai on November 11 and Chengdu in December 1. On December 2, the 5G pilot base station was officially opened in Lanzhou.
The pilot opening of the 5G base station marks the next stage of the overall planning of China Telecom's 5G base station. Next, China Telecom will continue to cooperate with network equipment manufacturers and chip manufacturers and explore in depth. At the same time, it will jointly conduct research and experimentation on 5G technology and vertical industry application with industry chain enterprises. For example, China Telecom will conduct a wide range of research and experiments on augmented reality (AR) and virtual reality (VR), tactile Internet, car networking, wireless communication applications, drones, and power grids.
According to the data, since 2016, China Telecom has led 20 projects for 5G international standards, submitted 258 international standard manuscripts and 102 technical patent applications, and made new progress in 5G research and development. China Telecom plans to conduct 5G laboratory and field testing in 2017-2018, trial commercial deployment in 2019, and commercial scale around 2020.
Qualcomm's testing not only confirmed that 5G technology can provide predictions for speeds above Gigabit, but also based on the location of existing base stations and frequency bands in the two cities, simulating the realities of Frankfurt and San Francisco, respectively. The simulation factors include geographic location, different user needs for the network, different levels of LTE and 5G connections, and various mobile devices and their different speeds in order to accurately understand the operating status of the 5G network under different conditions.
Specifically, Qualcomm selected two representative cities to conduct independent network simulation experiments. The first experiment simulated an NSA 5G new air interface network in Frankfurt, Germany, running on a 3.5 GHz spectrum with a bandwidth of 100 MHz. Gigabit LTE networks operate across five LTE bands. The second experiment simulates a hypothetical NSA 5G new air interface network in San Francisco, California, operating on a 28 GHz millimeter-wave spectrum with a bandwidth of 800 MHz. The underlying Gigabit LTE network spans four LTE licensed bands and multiple licensed auxiliary accesses. (LAA) band operation.
The results of the Frankfurt experiment show that in the 5G new air interface terminal user experience (compared to LTE terminals), the browsing download speed is increased from 56 Mbps for 4G user average to over 490 Mbps for 5G user average, achieving nearly 900% gain; response speed increase Nearly 7 times, the average download latency has been reduced from 116 milliseconds to 17 milliseconds; the download speed has also been greatly improved, and more than 90% of users have achieved 100 Mbps download speed on 5G networks, while using LTE connection technology. The download speed is 8Mbps.
The results of the San Francisco experiment are even more surprising. The browsing download speed is increased from 71 Mbps for 4G users to 1.4 Gbps for 5G users within millimeter-wave coverage, achieving nearly 2000% gain; response speed is nearly 23 times, browsing download delay The average value dropped from 115 milliseconds to 4.9 milliseconds. In a 5G network, 90% of users' download speeds rose from 10 Mbps to 186 Mbps, and the maximum speed reached 442 Mbps. In both simulation tests, the quality of the user has been significantly improved, 5G users can see 8K, 120 FPS, 10-bit color video stream.
How 5G changes the futureThe changes that 5G will bring to us are more than just downloading movies.
5G is not a simple 4G plus 1G, the transmission speed becomes faster, but it is a new change. Unlike 3G/4G networks, which emphasize data transmission speed, 5G communication provides ultra-high-rate bearers, low-latency, high-reliability, and large-capacity IoT links.
According to Qualcomm's report, 5G will generate 12.3 trillion US dollars of economic output globally by 2035. It is expected that from 2020 to 2035, 5G's contribution to global GDP growth will be equivalent to that of India's economy.
At the just-concluded PyeongChang Winter Olympics, the first 5G application service was provided. In the established 5G network environment, successful access to various video and mobile devices has been realized. This is the world's first wide-range 5G wireless network in the 28GHz band and the world's first quasi-commercial 5G service.
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