4g is the collective name for the upgraded 4G network. Its theoretical maximum download speed can reach 300Mbps. 4G makes the network speed faster; 4G is a 4G network that uses LTE-A carrier aggregation technology. Its most prominent and The core performance is that the 4G network speed has increased exponentially or even several times. However, because it does not use disruptive and leap-forward new technologies, the industry will collectively refer to the accelerated 4G network as 4G, or describe 4G in English. plus.
The operating environment of this tutorial: MIUI12.5 system, Xiaomi 11 mobile phone.
What is the signal of 4g?
4G＋, it is the collective name for the upgraded 4G network. Its theoretical maximum download speed can reach 300Mbps (37.5Mb/S). 4G makes the network speed faster. 4G uses improved carrier aggregation technology.
The most prominent and core performance of the 4G network that uses LTE-A carrier aggregation technology is that the 4G network speed has increased exponentially or even several times. However, because it does not use disruptive , leap-forward new technologies (such as 5G technology with network speeds up to 100G/S), so the industry collectively refers to accelerated 4G networks as 4G, or 4G plus in English.
4G network has very high requirements for mobile phones. Mobile phones that support 4G network will not support 4G. Only mobile phones that support 4G network will display the 4G icon.
Extension:
On the basis of the original 4G network, the operator further expanded the network spectrum, optimized the network quality, and greatly improved the network uplink and A network built for downstream speeds. However, compared with the speed increase from 2G to 3G and then to 4G, LTE-A is not a revolution.
In essence, 4G is the evolution of 4G technology. The accurate academic name is LTE-A, which is the abbreviation of LTE-Advanced. LTE-A uses Carrier Aggregation (GA) technology to make 4G networks faster. In June 2013, South Korean telecom operator SK launched the world's first consumer-grade LTE-A network.
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