Demystifying some of the secrets of cell phone signals
Is the signal on the phone one bar or full bar?
Why is the call still so clear when one bar is full, and the Internet seems to be speeding up when it is full?
Two tables to show you the functions and functions of the mobile phone signals of the three major operators
We often see that our mobile phone signal is only one bar, we usually find that the network is terribly unstable,
Regardless of whether you choose the package content with unlimited data (I have money).
Use the card of the mobile enterprise with better signal coverage,
Even on mobile phones, it is the most leathery CPU and equipment nowadays
The bars displayed on the phone seem to have nothing to do with him
The following two tables are used to clarify the frequency bands and functional relationships of the communication base stations of the three major operators.
This is also a **
what is this? Totally do not understand eh?
Seeing that it's all 5G, are you tired of mentioning 2, 3, and 4G to me?
Don't feel tired of hearing this, I still use this frequency band every day.
A second table was then used, showing his role.
There is no mistake, mobile calls or 2G communication base stations 20 years ago
If you don't believe me, dial the phone and look at the sign in your phone, the signal will drop to 2G
China Unicom calls or 3G
Telecom network calls or 3G
Of course, the Internet is all 4G broadband network, so that you can quickly connect to the Internet
There are also some Internet of Things devices with mobile phone traffic, all of which go through the industrial Internet of Things wireless channel.
This thing has a new national standard, called NB, not the one who scolded people, but the thing below
Power engineering water meter reading,
Fengchao Station,
Sports POS machine
Industrial control automation transmits data
even shared bikes
Many, many must be connected to the network, and the amount of information is relatively small to transmit data
It's all about the Industrial Internet of Things, what's going on?
The total flow is cost-effective, and the equipment is cost-effective!
Well, go back to the fiber-optic broadband that has a monthly subscription of 38 yuan with us.
Mobile Internet speed depends on 4G signal | Signal amplifier on 4G mobile phone
4G signal is good, maybe the network speed is good
yes, very likely
The network speed is determined by the frequency stability of the natural environment.
(The signal has a great influence, and naturally it can't go fast)
The number of users is large, there is only one cake, and the speed cannot go down.
(When you try to hold a concert, can the speed of the local network speed up with the crowds?)
Naturally, a strong signal is required
When the mobile phone is in standby, the compressive strength of the signal seen is 4G, if it is full, it is strong enough
When talking on the phone, the compressive strength of the signal seen is 2/3G, if it is full, it is strong enough
Why do operators have to make the signal so complicated, why not just use 4G?
There is no way, because there are so many historical reasons
As a result, historical time machine equipment is only suitable for 2G and 3G frequency bands
Operators will continue to use and maintain
When will it be unified?
Perhaps for industrial production and social machinery and equipment, it is always a coexistence situation
But for mobile users hahaha
It is possible that all calls will be unified to 4G, which is the VOLTE | 4G mobile phone signal amplifier you see above.
The name on the phone is called "HD Voice Call"
The specific role is to take network broadband calls
Maybe in the near future, maybe 2020
When 5G commercial comes in all directions
The Internet will migrate to 5G
And calls may be migrated to 4G | Signal amplifier on 4G mobile phone
