Is the domestic 5g network a joke?

As we all know, after entering 5G, there are two frequencies written into 5G standard by 3GPP, one is sub-6 and the other is millimeter wave. Sub-6 refers to the frequency spectrum from 450 MHz to 6 GHz, and millimeter wave refers to the frequency spectrum from 24.25 GHz to 52.6 GHz.

Since the three major domestic operators mainly use Sub-6, only the United States used millimeter waves at the beginning of the world, and there have been rumors that the reason why the United States did not use Sub-6 was because it was occupied by the military.

Therefore, many netizens, adhering to the principle of "what the United States uses, we want to oppose, what the United States opposes, we want to support", have been voicing millimeter waves and think it is a joke.

In particular, some professionals pointed out that millimeter waves have short distance and fast attenuation because of their high frequency. When a leaf or a wall can block the signal, everyone is more full of malice and irony.

Although other professionals later said that millimeter wave has advantages, high speed, good directivity and low delay, Sub-6 and millimeter wave are the best, but netizens just refused to listen and thought it was sweeping the floor for the United States.

Don't talk about washing today. Just talk about the current global 5G status quo, and everyone will understand whether millimeter waves are useful.

By 202 1, 169, operators in 70 countries around the world released 5G. Plus the operators who are investing in 5G, the total number has exceeded 400, which is already a lot.

From the perspective of the global 5G pattern, it can be divided into three parts. The first part is that Europe, Asia-Pacific and North America belong to regions with rapid development of 5G, and the commercialization of 5G networks is basically completed; The second is South Asia, Eastern Europe, North Africa, Central and South America, followed by 5G deployment and pre-commercialization; The third is sub-Saharan Africa. In most areas, 5G is still blank, and some countries and regions even have 4G.

From the spectrum used by global 5G, Sub-6 is definitely the mainstream. As shown in the above figure, these two typical sub-6 s, n77 78 use the most spectrum resources. Nearly 65,438+000 such networks have been deployed in the world, of which more than 240 have been evaluated and tested.

The second bit is millimeter wave band, such as n257/n258/n26 1. There are more than 20 5G networks that have used millimeter waves in the world, and the number of being evaluated and tested has reached more than 150, ranking second.

In fact, even in China, the three major operators started millimeter wave technology research and experiments on 20 17. According to the deployment plan of the operator, the commercial landing of millimeter wave in China has been basically determined in the past two years.

It can be seen that people really shouldn't be biased against millimeter waves and think that millimeter waves are useless, which is really a bit extreme. In the future, all countries and operators will definitely have 6 cents and millimeter waves, which is the best choice.