"5G" in "Science" running!When can it reflect the real "fast" feeling

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Compared with 4G, 5G can provide higher rates, lower latency, and faster movement rates. In fact, we have been in the 5G era for three years, but in daily use, many consumers have not felt 5G faster than the previous 4G. Why? What 5G is 5G, in popular terms, it is the fifth -generation mobile communication technology, and the main characteristics of the wavelengths are millimeter, ultra -broadband, ultra -high speed, delay ultra -low. 1G, realized simulated voice communication; 2G, realized digitalization of voice communication; 3G, realized multimedia communications other than voice outside the voice; 4G, realized the local high -speed Internet access; Interconnection everywhere. Picture source: From 1G to 4G, the frequency of radio waves used is getting higher and higher, and the higher the frequency, the more frequency resources that can be used, the higher the transmission rate. So, since the high frequency is so powerful, why do we still need it? The higher the frequency, the shorter its wavelength, the closer to the straight line, and the relative ability of the winding and the wall of the wall will deteriorate. Therefore, if high -frequency use in mobile communication, the transmission distance needs to be greatly shortened. This means that within the same range, 5G needs more base stations. The increase in base stations also means increased cost. Why is the 5G "fast" sense of "fast". Since the transmission speed of 5G is faster, why is it not much different from the 4G of the past in terms of physical sensation? Recently, the academician of the Chinese Academy of Engineering mentioned this problem in the popular science program "Science and Technology and Chinese Academician Consecration". Academician Xi Hexuan mentioned in the show that many netizens felt that 5G was not as fast as it was, because the 5G network at this stage was still being constructed. At present, only 1.7 million 5G base stations have been built nationwide, and 5 million are 5 million in 4G base stations that have been completed in the past. So the signal coverage of 5G is far less than 4G. The fast Internet speed of 5G is also related to its wireless signal using higher frequencies, but this also leads to shorter wavelengths of 5G, smaller coverage, and easy to be blocked. Therefore, within the same range, the signal coverage may be completed with 1 4G base station in the past. Instead of replacing 5G networks, it is necessary to use 3 to 6 5G base stations. Therefore, the number of base stations at this stage is not enough. When the 5G base station reaches more than double the 4G base station in the future, the coverage and signal quality of the 5G network will really become better. In addition to the insufficient number of 5G base stations, Academician Xun He also believes that the current 5G terminal is the performance of Internet devices such as smartphones, and it is impossible to exert all the advantages of 5G. For example, 4K, 8K ultra -high -definition videos, VR, AR virtual reality and other technologies cannot be applied on smartphones, let alone AR, VR, IoT and other applications. In the end, Academician Wu also emphasized that although our 5G technology leads the world, the processing, foundry and mainstream operating system of chips still rely on the United States to face their shortcomings and double their efforts. The number of 5G base stations per 10,000 people in my country is more than 12 according to the official website of the Ministry of Industry and Information Technology. As of the end of May, 1.7 million 5G base stations across the country, covering all prefecture -level cities, county towns and 92%of towns and towns in the country. The number of 5G base stations per 10,000 people exceeds 12. Data show that as of the end of May, the number of 5G mobile phone users reached 428 million, and 5G traffic accounted for 27.2%, an increase of 19.1 percentage points over the same period last year. According to data from the Ministry of Industry and Information Technology, 5G applications cover 40 major categories of national economy. They have been widely used in more than 200 smart mines across the country, more than 1,000 smart factories, more than 180 smart grids, 89 ports, and more than 600 triple hospital projects. The 5G industry virtual network has accelerated the construction, from 1655 in July last year to 6,518, an increase of nearly 3 times, and the ability to develop the service industry was significantly enhanced. The relevant person in charge of the Ministry of Industry and Information Technology stated that it will strengthen departmental coordination and provincial linkage, fully implement the 5G application "sailing" action plan, steadily promote the construction of 5G networks, further consolidate the industrial foundation, accelerate the development of 5G applications, and better empower the industry. Essence At the 2022 World 5G conference held recently, Academician He Heye said, "For three years of commercial use, my country's 5G construction has reached expectations, but the application has not yet formed a scale, the maturity of related technical maturity needs to be improved, and the capacity of 5G has not been truly displayed." Academician He Heye said: "Whether it is the consumer side or the industrial scene, the outbreak of the application of 5G bearer is normal. After the coverage of the mobile network and the development of users to a certain scale, the application ecosystem of mobile communication will be born. This will be born from China. WeChat only appeared after 4 years of commercial use. After 4G commercial for a period of time, the short video application exploded. Therefore, online construction needs to be strengthened, and the user scale needs to continue to expand. "With the full rollover of my country's 5G network construction, it is super clear. Innovative applications such as videos, virtual reality, augmented reality, and Internet of Vehicles have emerged. The typical applications of the Industrial Internet bloom, but there is still a lot of gaps with the ideal 5G. Overall, the use of 5G networks is dozens of times faster than 4G, and it is also the basis of the real IoT; but if 5G is quickly popularized, users have completely different feelings, and there is a long way to go. Walk.

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