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Let's talk to you today: American Airlines jointly complained about stopping the construction of 5G in a local area, and there are security risks?
At present, the advanced nature of Huawei's 5G technology, no one will question it, the crushing of strength has also made many people "shut up", Huawei successfully helped China achieve curve overtaking in the field of communications, at least 1-2 years ahead of European and American countries in 5G technology, and Lao Mei has always been the leader in the field of communications, and it is not that it has not tried its best to develop 5G technology, but has chosen the wrong direction, resulting in the current situation.
But Lao Mei has always been unwilling to admit its own backward trend, not only do not allow local operators to use Huawei 5G technology, but also restrict the cooperation between many European countries and Huawei, if they also taste a certain bitter head, not only can not get around Huawei's technology patents, but also the original free use into a charging model, and in the recent united States, the construction of 5G networks in the United States has encountered difficulties, and has been jointly accused by a number of airlines.
The United States adheres to millimeter wave technology
In the past two years, the United States in the overall layout of the 5G network, instead of making breakthroughs, but constantly sent out bad news, the core of which is to limit the development of Huawei, which has the meaning of "not thinking of making progress", it has not developed, and it is not good for others.
But they did not give up the idea of continuing to develop 5G, after all, all industries in the future must rely on 5G technology, but they are accustomed to a leading posture, and it is inevitable that they will be a little unbalanced when they are suddenly behind, but they are always unwilling to admit Huawei's technology, or insist on developing millimeter wave technology, although millimeter wave technology has certain advantages over Huawei's centimeter wave, but for now it is impossible to overcome technical problems.
If the United States insists on using millimeter wave technology to lay out 5G networks, it means that more intensive base stations need to be built later to achieve global coverage of 5G networks, which will invisibly increase a lot of construction costs, time-consuming, laborious and undesirable things, and they are willing to grind, they thought that their construction difficulty would come to an end, but a number of US companies jointly complained, requiring them to stop the relevant 5G construction, what is going on?
A number of U.S. companies have demanded a halt to 5G construction
And these U.S. companies are some airlines, including American Airlines, Delta Air Lines and other giants, a number of airline CEOs jointly sent a letter, roughly the content: "If operators insist on using the C-band layout network of 5G signals, then there will be a large number of flight cancellations." ”
So does this so-called C-band really interfere with the normal flight of the aircraft? After many discussions, US operators have also clarified their attitudes, and the two major Telecommunications operators in the United States, AT&T and Verizon, have stated: "5G signals will be restricted near airline airports!" ”
As we all know, airports in the United States are all over the country, and if this part of the market is lost, it is possible for operators to not even recover the cost of 5G base station construction. This is not only curious, but also the US operators admit that "there are hidden dangers in 5G"? Why did the airline reach an agreement with the operator so quickly, and is there any "catty" in it?
Is there really a security risk in 5G?
Communication network technology has always had many frequency bands, each band has different characteristics, the actual commercial functions are also different, although these frequency bands are not visible to our naked eye, but if the use of the same frequency band of two devices together, there will indeed be mutual interference, just like Bluetooth devices and routers can not be put together at the same time, otherwise there will be mutual interference.
If based on such a principle to explain, the aircraft should also use the C band, and if the 5G signal also uses the C band, it is indeed possible to cause a certain impact, after all, the flight safety of the aircraft is no small matter, even if it is a small safety hazard, it must be "amplified" processing.
However, this does not mean that there is a problem with the 5G network, Huawei uses centimeter wave technology, which is a very mature technology, which has been used since the 4G era, and China's airports have long achieved global domain coverage of 5G networks, and have never reported similar problems, which can be concluded that the problem lies in the millimeter wave technology adhered to by the United States.
Millimeter wave and centimeter wave have their own advantages, millimeter wave speed is indeed suitable for faster transmission of 5G, but the disadvantage of short coverage is also very obvious, and the speed of centimeter wave, although slow, but the coverage area is wider, can save a lot of costs, in today's era when 5G technology has not yet been popularized, it is clear that centimeter wave technology is more in line with demand, and the impact of the C frequency band on aviation safety has not been reported in other countries.
Although the operators in the United States have compromised, it seems that they are still unwilling to admit that they are lagging behind in technology, do you think there is such news?