5G commercial time is approaching, spectrum is the most important scarce resource in the entire wireless communication industry, and global planning for 5G spectrum is also accelerating. China faces spectrum planning, first introduced to the mid-band 5G commercial On November 15, the official website of the Ministry of Industry and Information Technology issued the "Notice on the use of the 3300-3600MHz and 4800-5000MHz frequency bands in the fifth generation mobile communication system". According to the official WeChat of the Ministry of Industry and Information Technology, the frequency band use plan for the mid-band 5G system released this time can take into account the basic requirements of system coverage and large capacity, and is the main frequency band for the early deployment of China's 5G system. Spectrum is the most important scarce resource in the entire wireless communications industry. Compared with the previous 2G, 3G, 4G, 5G has far higher bandwidth than previous ones, higher speed, and supports the connection of 100 billion IoT devices. The required spectrum of 5G is far more than the sum of previous generations of mobile communications. . At the same time, in order to move broadband, low latency, and ultra-large-scale networking, the 5G system has determined the "full frequency band" at the beginning of planning, and needs to plan from high frequency, intermediate frequency and low frequency. At present, the domestic low-band resources have been allocated, and the low-band resources in the hands of operators are still applied in 2G and 4G networks. The 700MHz spectrum called digital dividend has been controlled by the provincial radio and television companies in the country, although most of them are limited. It has not been reassigned to the mobile network. There is no low-frequency resource allocated to 5G in China. In the mid-range, 3.5GHz is regarded as the pioneering band of 5G networks by many countries around the world because it is beneficial to signal coverage. In June 2017, the Ministry of Industry and Information Technology has drafted the “Notice of the 5th Generation International Mobile Telecommunications System (IMT-2020) using the 3300-3600MHz and 4800-5000MHz frequency bands (draft for comments)†to solicit opinions from the industry. The official determination of the 5G spectrum has also made China the first country in the world to release the 5G system for use in the mid-band spectrum. An industry insider told reporters that "about the middle frequency band, many countries and enterprises are waiting for China's planning. The Chinese market is the largest and has the greatest impact on the industrial chain. After China has determined it, it can accelerate the maturity of the industrial chain. †However, the high frequency band is currently highly controversial in the industry. The industry calls the high frequency band millimeter wave. As early as July 2016, the US FCC has officially announced the millimeter wave band allocation scheme, and then in September 2017, it again allocated more millimeter wave spectrum for 5G, forming 28 GHz. The main millimeter wave distribution scheme. Currently, the United States, Canada, Japan, and South Korea mainly support this program. China and the EU mainly support the 24 GHz solution in millimeter waves. In June 2017, the Ministry of Industry and Information Technology issued the “Opinions on Publicly Collecting the Frequency of Use of the Fifth Generation International Mobile Telecommunications System (5G) in the Millimeter Wave Band,†but the millimeter wave is not included in the 5G spectrum allocation. According to the above-mentioned insiders, the main promoter of the millimeter wave in the United States is the operator Verizon, and the application scenario is mainly the coverage of indoor hotspots. The current domestic network construction idea is the continuity coverage of 5G networks. According to the previous UBS consulting statistics, if the millimeter wave is applied for continuous coverage, the number of base stations required is 600 times that of the 4G base station, which cannot be tolerated by any operator. "Millimeter waves cannot be continuously covered, and the millimeter wave industry in China is not mature enough. Wave planning can be considered later." Under the joint promotion of the global industrial chain, 5G commercial time points are constantly being advanced. At present, according to the plans of the three major operators in China, the 5G experimental network has been started in major cities in 2018, and the scale trial commercialization has been carried out in 2019. Commercial deployment has officially started in 2020. In addition, other Asian countries have also announced 5G commercial timetables, of which South Korea will achieve 5G pre-commercial during the PyeongChang Winter Olympics in 2018, and Japan is expected to provide 5G commercial services for the Olympic Games in 2020. After the completion of the 5G spectrum planning, the regulators will need to consider how to allocate spectrum among the three major operators. "3.5GHZ (3400MHz-3600MHz) this frequency band has been tested in China and the world. According to the test results, the industry chain is relatively mature and can be continuously covered on the existing network. Although there are still some difficulties, But all can be overcome." The above-mentioned insiders said, "But 4.8GHz (4800MHz-5000Mhz), the current test is very few, the industry chain maturity is relatively low." Relatively mature 3.5GHz and less mature 4.8GHz, how to distribute among the three major operators will affect the 5G development process. From the current stage, China Mobile (Weibo) already has certain technical accumulation and extensive testing experience on 5G, and has a strong capital reserve to support the next 5G construction. The number of base stations required for 5G construction may reach 4G. More than 5 times, from the current point of view, Telecom and China Unicom do not have enough funds to support 5G construction. A number of telecom equipment vendors told reporters: "If you want to consider the 5G development rate, then 3.5GHz is more suitable for China Mobile." However, they are also worried that if the competition is balanced, the regulator may let China Mobile啃 4.8GHz this hard bone.
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