South Korea imposed a huge fine of 33.6 billion won on the country's three major operators because they claimed that the 5G could reach 20Gbps, but consumers actually used only 800Mbps, which was more than 20 times higher than the actual figure.

In fact, this is not the first time that 5G has been torn off the fig leaf. With the commercial use of 5G in China, consumers suspected that operators would reduce the speed of 4G in order to encourage consumers to switch to 5G networks, and operators of course denied it. Until the professor of Beihang pointed out a similar problem, which made the industry big. Coupled with the heavy penalties imposed on operators'5G publicity in South Korea, it can be said that the fig leaf of 5G has been completely torn apart.

The reason why 5G becomes like this lies in the over-propaganda of 5G in the early days. To realize 5G 20Gbps, we have to adopt 5G millimeter wave technology, which can only be achieved by ultra-wide spectrum resources. however, 5G millimeter wave technology is basically not adopted by operators because of its high cost and its own technical defects, and American operators only use 5G millimeter wave as a supplement to fixed-line broadband.

The reason why 5G becomes like this lies in the over-propaganda of 5G in the early days. To realize 5G 20Gbps, we have to adopt 5G millimeter wave technology, which can only be achieved by ultra-wide spectrum resources. however, 5G millimeter wave technology is basically not adopted by operators because of its high cost and its own technical defects, and American operators only use 5G millimeter wave as a supplement to fixed-line broadband.

For the industry, 5G still faces the problem of lack of rigid demand, and the currently developed applications do not have to be 5G. 4G can also solve the problem, even if it was once widely publicized as autopilot. Now they also think that the safety of autopilot can not rely on 5G, because the 5G network is unreliable, and the safety of autopilot must be guaranteed by the car computer.

This has led to an awkward situation for China's 5G operation, with operators claiming that the number of 5G subscribers has exceeded 1 billion, while the Ministry of Industry and Information Technology has disclosed that there are fewer than 500 million 5G network users, and many 5G package users do not use 5G networks and 5G mobile phones.

Even some 5G mobile phone users turn off the 5G function as soon as they buy the 5G phone, because the signal of the 5G network is not as good as the 4G signal, so the consumer experience is not good, and consumers are still more willing to use the 4G signal with good coverage. This means that the real 5G users may have to give a discount.

Operators also complain a lot about 5G. Now operators have gradually slowed down the construction process of 5G centimeter wave technology, and they begin to rely on low-frequency 700MHz and 900NHz to reduce 5G costs and enhance 5G signals. However, another problem caused by this is that the speed of low-frequency 5G may be as low as 500Mbps, which is similar to 4G multicarrier technology.

The shift of 5G to low-frequency band brings new annoyance to consumers, that is, most 5G phones do not support 700MHz before October 2021, while most current 5G phones do not support 900MHz, which means that with the advance of low-frequency 5G, a large number of old 5G phones will be eliminated.

The shift of 5G to low-frequency band brings new annoyance to consumers, that is, most 5G phones do not support 700MHz before October 2021, while most current 5G phones do not support 900MHz, which means that with the advance of low-frequency 5G, a large number of old 5G phones will be eliminated.