Technically speaking, advanced technology is supposed to make life more convenient. However, there are great controversies regarding 5G technology. Especially after Professor Beihang unveiled the FIG leaf of 5G, consumers have been making fun of 5G.

It has been widely reported by consumers that download speeds of 4G networks will significantly slow down after the commercialisation of 5G networks. Therefore, rumors that operators are slowing down 4G speeds in order to force users to switch to 5G networks have naturally been denied by professionals and widely popularised.

It was not until the 2022 World 5G Conference forum that Sun Wei, the founding dean of the School of Software at Beijing University of Aeronautics and Astronautics, said, "Operators artificially reduce 4G speed and bandwidth to force users to buy upgraded 5G services, which is not the right way to do business." This is a well-known person to confirm the news, which has triggered heated discussions.

In fact, for most consumers, 4G is enough for daily Internet applications such as watching videos on mobile phones. After all, mobile phone videos are clear enough to use 1080P, and many videos even use 720P, in order to reduce consumers' traffic costs as much as possible. In fact, there is no great demand for 2K and 8K videos supported by 5G on mobile phones.

There is also the signal problem that makes consumers dissatisfied with 5G. As the 5G network built before all uses intermediate frequency band, the signal radiation and diffraction ability of intermediate frequency are weak, which leads to the difficulty of intermediate frequency 5G signal penetrating walls and small signal coverage area, resulting in no 5G signal in urban corners such as toilets, let alone in vast rural areas. That has left consumers unhappy with 5G.

Due to consumers' doubts about 5G, the actual users of 5G network are far less than those of 5G plans. The number of 5G plan users announced by operators has exceeded 1 billion, while the number of 5G network users disclosed by the Ministry of Industry and Information Technology is less than 600 million, which highlights the reluctance of many users to use 5G.

China's three major operators have worked hard for three years to build nearly 2.4 million 5G base stations. However, the number of such base stations is far less than the number of 4G base stations. China Mobile alone has more than 2.4 million 4G base stations, and 4G base stations have a far greater coverage than 5G, so 4G network coverage is far better than 5G.

In the first half of 2020, the performance of China Mobile showed that the electricity charge increased by half. At that time, the number of 5G base stations was only over 300,000. In order to save electricity, the operators adopted intelligent management measures of 5G base stations, which is actually to shut down 5G base stations during idle hours to save electricity.

In the face of many disappointments in 5G, consumers naturally do not want to upgrade 5G network, and operators have to take various measures to develop 5G users. The operators' 5G packages are even criticized by People's Daily for being unreasonable. Consumers are tempted to upgrade the high-priced 5G packages, but cannot reduce the low-priced 4G packages after feeling cheated. To the professor of Beihang exposed operators limit 4G speed FIG leaf.

After all, 5G can provide better Internet experience. With the completion of 700MHz 5G network by China Mobile, China Unicom and China Telecom will also build 900MHz 5G network. 5G signal will be greatly improved. All this will help embrace 5G, and perhaps by then the doubts about 5G will be laid to rest.