5G is the abbreviation of the 5th generation mobile communication, not 5G of 5G traffic, nor 5G of 5GHz frequency. Compared with 4G, 5G has a qualitative leap in all parameters. Simply put, it is good (when moving or when people are many), fast (fast without delay) and save (power saving)

How fast is 5G? Give an intuitive feeling that one second can download a high-definition movie!

What frequency band does 5G use?

At present, the 5G frequency band planned by the international and domestic mainstream can be divided into 5G low frequency band and 5G high frequency band

5G low-frequency band: mainly refers to the band below 6GHz.

Recently, China's Ministry of industry and information technology issued a draft of opinions,

3. 3g-3.40ghz band is basically recognized as 5g band, which is limited to indoor use in principle;

4.8g-5.0gmhz frequency band, and the specific frequency allocation and use shall be determined according to the requirements of the operator.

The new 4.4g-4.5gmhz band shall not cause harmful interference to other related radio services.

5G high frequency band: mainly refers to the band above 20GHz.

Opinions are being solicited in 24.75-27.5ghz and 37-42.5ghz high-frequency frequency bands in China, and 28ghz is mainly used for experiments in the world.

How do mobile phones communicate with each other under 5G?

The cell phone and the base station communicate through something called electromagnetic wave.

Why is it used more and more frequently from 1G to 5G?

The most simple and direct answer is: because the low-frequency frequency band is basically occupied, it can only be divided into high-frequency band.

Why is it that the higher the frequency, the faster the speed?

Because the bands at high frequencies have not yet been divided, the bandwidth available is high.