Many applications that have been vigorously promoted since last year were actually doomed to fail from the beginning, because they deliberately exaggerated the technology of 5G, but deliberately ignored the disadvantages of 5G. They said that the ultra-large bandwidth and ultra-low latency of 5G are enough to interconnect many industries. However, the ultra-large bandwidth and ultra-low latency of 5G require wider frequency bands and high-frequency frequency bands, and 5G millimeter waves can reach the theory of 5G standards. technical level.
However, the reality is that 5G millimeter wave technology needs to spend a huge amount of money to build a huge number of 5G base stations. At present, it can be seen from the construction of 5G networks by the three major operators that even 5G centimeter wave technology requires much less 5G base stations than 5G millimeter wave technology. The operators were still unable to bear it. In the end, China Mobile chose 700MHz to build 5G. As long as 480,000 700MHz 5G base stations are enough to cover the whole country, the ultra-large bandwidth and ultra-low latency of 5G have become illusory.
In addition, with the advancement of 5G industrial interconnection, the industry finally clearly realized that the so-called ultra-low latency only refers to the 5G mobile phone to the base station, and the delay of more than 20 milliseconds from the base station to the server cannot be overcome. The existence of this delay makes industrial interconnection, Synchronization of telesurgery is a bubble. Now they finally realize that 5G is only suitable for telemedicine diagnosis, case transfer, etc. However, these can also be achieved by 4G.
It has only been two or three years since 5G was officially commercialized, and all countries and regions around the world are doing their best to deploy 5G networks. China’s deployment of 5G networks has never stopped. At present, it has built the world’s largest 5G network, encouraging high-tech enterprises to develop 5G applications and making the long-awaited Internet of Everything tangible. As an important part of 5G, millimeter wave is also the reassurance of industry efforts. As a leader in wireless technology, Qualcomm has played a crucial role in the development, commercialization and scale of 5G.
Qualcomm said that 5G innovation is now at the center of digital transformation, and millimeter wave is an indispensable technology. Qualcomm has accumulated rich experience and technology in the investment and research and development of 5G millimeter wave technology for more than ten years. The commercial use of 5G and the promotion of the ecological development of various industries are the best examples. Today, 5G is no longer on paper, but there are more possibilities for 5G to be developed. Qualcomm’s purpose is to work with the global 5G industry to focus on 5G millimeter waves, work with partners to expand the 5G ecosystem, and use 5G millimeter wave technology to continuously enrich 5G terminals and applications, benefiting more industries and consumers. In particular, Qualcomm has been deeply involved in the Chinese market for more than 30 years and has reached strategic partnerships with most advanced Chinese companies. In the future, the cooperation between Qualcomm and Chinese friends will have closer cooperation and contact, ranging from smartphones to smart cars. These are the best application scenarios for millimeter wave to achieve hotspot coverage, and Qualcomm can perfectly interpret and release The stage for 5G mmWave technology.
There are two points to pay attention to in the development trend of 5G. One is that mobile traffic is expected to increase by 665% from 2019 to 2026; the other is that 5G is different from previous communication technologies and will have an impact on many ToB industries. Among industries such as construction and mining, digital education, telemedicine, smart manufacturing, smart retail, and smart cities, 5G is expected to generate $13.1 trillion in global economic output by 2035. During the development of these trends, technologies such as 5G+AI, edge cloud, 5G millimeter wave, and XR will become the focus. The application scenarios and solutions of 5G in the field of industrial manufacturing, that is, to discuss more about the “how” application, to help enterprises clearly know how 5G can help production and manufacturing, and how enterprises should choose 5G that suits them. solution. He introduced three application scenarios of 5G, first, extreme mobile broadband; second, massive Internet of Things; third, ultra-reliable and low-latency communication. Five 5G solutions are also analyzed, one, 5G enterprise private network; two, licensed, shared and license-exempt spectrum; three, ultra-low latency communication (URLLC); four, time-sensitive networking (TSN); five, positioning applications .
Recently, American consumers complained that the 5G service they enjoy is fake 5G. The reason is that the 5G network coverage is too poor, and the data transmission rate of 5G is too low. Compared with 4G, the improvement is extremely limited. This all stems from the adoption of 5G millimeter wave technology in the United States.
Although the current global 5G technology is claimed to be a unified 5G technology, the 5G technology used in the United States is still different from the 5G technology in other countries. The 5G millimeter wave technology used by American operators is 5G, while the mainstream 5G is 5G. Centimeter wave technology.
There are two main differences between 5G millimeter wave and 5G centimeter wave. 5G millimeter wave can provide higher data rate and lower latency, but the coverage effect is too poor and easy to be blocked, even raindrops will block the 5G millimeter wave signal; 5G centimeter wave is just the opposite, the coverage effect is good, but The delay is difficult to reach the theoretical delay of the 5G standard, and the data transmission rate is also low.
Previously, all parties liked to emphasize the ultra-low latency and high-speed data transmission rate of 5G when promoting 5G technology. However, in actual operation, operators have found that considering the cost problem, 5G centimeter wave is more practical, and even 5G is more practical. Centimeter wave technology is also unbearable due to the high construction and operating costs of 5G base stations. China Mobile now chooses the low-frequency 700MHz to build 5G networks, greatly reducing the number of 5G base stations to be built. Obviously, cost is the priority of operators, and 5G The advantages of technology have been put on the back burner.
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