Those who desperately promote 5G mobile phones are either stupid or evil.

These days, I don’t know what’s going on, but I’ve seen a lot of media/mobile phone users advocating 5G phones.

In 2018, the person who whispered in your ear asking you to buy a 5G phone...would you just slap him to death?

Brother Ji acknowledges the advanced nature of 5G and admits that 5G will be the mainstream of ultra-high-speed mobile communications for some time to come.

Brother Ji knows that 5G is awesome.

But, Brother Ji said but.

It’s only 2018, what on earth do you want a 5G phone for?

To be honest, I am here to advise friends who want to buy 5G mobile phones.

Although 5G is a good thing, it is safest to let nature take its course and wait until 5G coverage is high before using it.

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There are several main reasons, according to Brother Ji.

Have you forgotten the pain after using 4G? It will take time for 4G to be widely used.

As early as the end of 2013, 4G was officially announced for commercial use.

To this day, I think 4G only covers about 80% of life scenarios...

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This only means that "there is a 4G signal" and is considered to be covered, not that the speed standard of the 4G network has been reached.

According to 4G technical standards, a static, pedestrian network speed of 125MB/s (1Gbps) and a high-speed mobile speed of 125KB/s are considered 4G.

Can your internet speed exceed 10MB/s? Mine is definitely not, and even the one who can reach over 2MB/s is amazing.

The 4G download speed I tested while writing this article is 100% faster than China Unicom.

After five years of deployment, 4G network speeds are still not up to standard.

China Unicom 3G many years ago was not much slower than China Unicom 4G and was more stable.

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Oops, 4G coverage is still a problem.

It's okay for me in Guangzhou, but when I go to tourist areas or slightly remote places, 4G network is a disaster.

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It would be bad enough if the coverage rate was low, but there are only three operators in the country and their coverage rates vary.

I can't move when I go to crowded places.

China Unicom cannot be connected in remote areas.

The number of people in telecom depends on their mood, and the speed is fast.

Do we need to release a three-card, three-wait device to solve the problem?

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The coverage of some means of transportation is even more unreliable; the subway is a network black hole.

The former Beijing Metro Line 10 and the current northern extension of Guangzhou Line 3... can you believe that there is no internet at all?

Fortunately, there is internet on Line 6.

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Image source: Beijing News

I also complained to the operator about the poor signal at my home.

The customer service said to write it down in a small notebook first, and then find a place nearby to build a signal tower.

It is suggested to build it at Brother Ji’s house.

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It took 5 years for 4G coverage to become what it is today.

Let me ask you, do you really think you can use 5G?

Some friends of mine were thinking about buying a 5G mobile phone to take home in 2018, perhaps intending to frame it as an antique.

Someone should mention at this point that 5G will be modified based on 4G base stations, so it can be deployed quickly.

But...

5G uses millimeter waves, and its biggest feature is its high consumption.

Under the same base station, the coverage area of ​​5G is far less than that of 4G.

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Without considering the effect of Massive MIMO and beam shaping on the antenna gain

I'm not satisfied with 4G coverage, so what about 5G? You're kidding me.

This is a technical limitation and a small drawback among the many benefits of 5G.

Next, operators still have to work hard to build base stations.

Fortunately, since 5G can be covered by small base stations, the coverage speed should be slightly improved.

However, to cover the entire country with 5G network...it will require thousands and thousands of small base stations, which is a long way off.

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To add, if 5G is laid out, then the coverage of 5G will be higher than that of 4G.

So, even a giant like Qualcomm.

When planning 5G, the initial expectation was that 5G would cover the core CBD, and outside the CBD, 4G LTE would still be used.

Do you live in the CBD and why are you so anxious to urge people to buy 5G phones?

Dear friends, 5G coverage will take time, and I think the early date of 2020 is too early.

Even if we leave aside the coverage rate, 5G will encounter another problem in the next two years.

5G may not be as fast as you think

According to the current 5G standards, the 5G speed will reach 1250MB/s, which is ten times faster than 4G according to previous standards.

Doesn’t it feel super fast?

Some people say 5G is as fast as a tornado.

A hot article on a headline

But, can it really be that fast?

No.

Huawei has developed a 5G commercial chip, Balong 5G01, with a network speed of 287.5MB/s (2.3Gbps).

Qualcomm has developed a 5G modem chip, the X50, with a network speed of 625MB/s (5Gbps).

If I remember correctly, these should be the two latest basebands released so far.

The 4G LTE modem X24, also built by Qualcomm, currently has a speed of 250MB/s (2Gbps).

The first few 5G devices will only be 1.5 times faster than the fastest 4G network today.

Some early 5G chips may only be as good as the fastest 4G LTE.

So, why don’t people continue to use 4G when 5G coverage is not yet widespread?

During the time when 5G came out, 4G has become not slow at all.

Therefore, in the initial period, 5G has neither the advantage of coverage nor much advantage in network speed.

Do you really have to wait for a phone specifically for 5G? Or do you really have to buy a phone just for 5G?

I don't think it's worth it anyway. If you insist on waiting, you might as well wait until 5G coverage is ready before changing. That is definitely not something that can be done in 2019.

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Although 5G is good, everyone must not follow it blindly.