Nowadays, many people have never used 5G at all, so they say that 5G is useless. Is this reasonable?

5G You only need to remember three main features: 1. High speed; 2. Low delay; 3. High capacity. This technology is developed for the Internet of Everything, massive data communication and high-precision scene control. As for the usefulness of 5G, it is meaningless to leave the people and scenes used.

There is no speed limit. Now the network speed of 4g will only be slower, so it is necessary to develop 5g. The theoretical downlink speed of 4g is 100Mbps, but it may not be achieved even if it is used alone. Moreover, with such a large amount of access by 4g users, the bandwidth actually obtained by individuals has been decreasing. The speed limit should not be, should it? If you use 10 G and others use 1 G, do you still want to use the same network speed as others? Do you think this is fair? Originally, the current 4g can no longer meet the needs of users. Why not realize 5g? If we don't slow down, the network speed of 4g will only be slower than it is now. Compared with 4G, the speed of 5G is not the only place that can be surpassed, nor is it the most important place. Perhaps it is the mobile network 2 ~ 4G that makes people have the inertial idea that the mobile network is used for mobile portable devices. According to the tests of many professionals, 5G has more industrial value.

Of course, no one can say for sure in the future, but our country needs such an opportunity, and 5G is worth taking a gamble. Without 1080 HD, I didn't feel that I couldn't watch the video, but I found that I really couldn't watch it after I had it. You need to transfer 2k, 4k or larger files in the future. Can 3g and 4g really be handled? Is 5g really unnecessary? Or should we wait until 2k, 4k and large-capacity files have become common before arranging 5g signal coverage? At present, 5g mobile phones are certainly immature and of little use. No one is forcing you to buy it, you can still choose to wait and see. But 5g is definitely a trend, and there is nothing wrong with application and research and development. And 5g is not only for mobile phones, but also for artificial intelligence, autonomous driving, cloud office, smart cities and so on. I can't believe some people say that 3g is enough. Do we have to rest on our laurels and not seek development? The three major operators are to blame.

You can't say it well when 4G comes out. Now the network speed can't exceed 4mb/s, which can be said to be 10mb/s at that time. This theoretical speed is not exaggerated. It was ok when 4G first came out, but now the network speed has been halved, dropped calls, packet losses and delays are getting bigger and bigger, and the signals in places where the signals were full are getting worse and worse. 4G didn't have so many problems when it first came out, but it couldn't help but cut corners and deliberately slowed down. Don't look at how good it is now. Try it again in two years, not necessarily the same.

Now it can reach 1000Mbps, that is, 80mb/s, and the delay is within10 ms. Wait for five years. According to the principle of cellular communication, the proportion of base stations with 5G to 2.4G coverage is not 4-8: 1, but 7- 19: 1, which has not considered the attenuation of 5G frequency band in urban steel jungle. The gap can refer to 802. 1 1ac (well, the new standard should be called Wi-.

Then, at present, the cost of single base station construction of 20-50w should only consider the cost of base station antenna. Although 5G has further stripped off the infrastructure, BBU and RRU can remotely manage more base stations and antennas, but it still needs cost. At the same time, a large number of base stations need to be deployed in the building, which will further increase the land use cost, plus labor and training. The actual cost of deploying a single 5G base station is estimated to be around 120- 150w, and no demand does not take the initiative to deploy it to the public (the three major operators in a province in Central China have unified caliber).

Some people may ask, if 5G really has these shortcomings, why should the United States boycott Huawei 5G?

Well, communication is divided into equipment vendors and terminal vendors. Equipment vendors provide communication operator equipment such as base stations and micro base stations, and terminals refer to mobile phones or operator routers. Equipment vendors include Huawei, ZTE, Nokia, Ericsson and Samsung, and terminal vendors include Huawei, OPPO, Xiaomi, VIVO, Samsung and Apple. What the United States boycotted was not 5G technology, but China equipment vendors represented by Huawei, calling on NATO countries to adopt products from equipment vendors within NATO control, such as Ericsson, as far as possible.

Is 6.5G a great technology? Then why are there these shortcomings?

However, 5G is a communication technology that increases the transmission rate by 10 times+,which is undoubtedly a huge technological progress. Disadvantages mainly focus on the word "money", that is, media expansion, power consumption and equipment cost. Once Motorola established the inter-generational satellite communication network Iridium, 66 network satellites were launched for global calls ... because it was too expensive, it was on the verge of bankruptcy and few people used it to sell it.

As far as I can see, most broadband download speeds at home are still 10M m/s, far below the level of 5g. However, apart from the download demand, few people think that the network is slow, and most of the videos on the network do not exceed 1080p 60hz. If the demand in this area does not go up, there will not be much will to replace it. At this stage, the maximum usage of 4g can be guaranteed, which is basically enough. 5g is just another possibility, and it will take a long time to popularize it to ordinary people. Telesurgery is indeed a development line in the 5G ecology, but it is not used in the typical environment of cities, but in the rescue in suburbs and in harsh conditions. This technology not only relies on the development of remote medical robots, but also has wide-area coverage in front of us.

Let me say something unpleasant. Feeling that our country may spend so much money on 5G? If the coverage problem cannot be solved, the ideal application of 5G will not work, and the next generation communication technology will be dragged down. Your base station will be rebuilt after spending a lot of money. The application of new technologies is subject to the general environment, economic environment, political environment and global development. China has been far ahead in the application and promotion of communication Internet. The launch and promotion of 5G has occupied a huge domestic market economically. In the communications industry? Evergrande? In principle, this market really deserves to be fully occupied first.

What's more, all communication operators are national prefixes, bearing the brunt of this responsibility and this fate. But in addition to the early analog to digital, 2G to 3G, the later communication development is essentially speed-up. Based on the emerging Internet applications, especially the great popularity of video, it is also relevant. What works and what doesn't depends on the perspective.

One of the main reasons why 5G is laid 1 year ahead of schedule and far ahead of schedule is that the existing 4G system can no longer meet the communication density, speed and security requirements of huge cities. The absolute cost of capacity expansion in 4G system is not less than 5G, and the unit capacity or bandwidth cost is 10~20 times of 5G.

The hard basic communication guarantee just needs to be promoted, and the trillion-dollar market such as e-commerce, games and personal safety at the C-end are the biggest beneficiaries/promoters of the upgrade, and the consumer entertainment needs of the minority are not even counted. The success of today's mobile Internet is the process of transforming minority demand into public demand. The mobile news, mobile instant messaging, mobile voice and video calling, and mobile streaming media I listed were all niche when they were born, but they all gained great growth in the 3G and 4G era. Today, they are not only a minority, but also a corresponding giant in each format. The biggest problem with 5G is that you can't see the huge growth of 5G, from small population to public demand.