4G (fourth generation) - fourth generation mobile communication, through which data can be transmitted at speeds up to 1 Gbit/s for stationary users and up to 100 Mbps for users with high mobility*.
*High mobility users mean subscribers who are in moving vehicles, such as cars or trains. The conditional speed range for determining mobile subscribers is adopted in the range from 10 km/h to 120 km/h
The main difference between the 4G concept and LTE is that 4G includes the entire range of networks that meet the requirements that have been put forward by international mobile telecommunication systems. For example, the fourth-generation networks except LTE (about the nuances of which are below) also include WiMAX technology.
LTE (Long-Term Evolution) - is a wireless standard for mobile data transfer, which is a development of EDGE and HSPA technologies.
Due to some improvements in comparison with previous technologies, LTE has a higher channel capacity and better data transfer speed. The LTE specification provides download speeds of up to 326,4 Mbps, and upload speeds of up to 172,8 Mbps. However, despite significant progress, LTE is not yet a 4G standard network, as it does not meet its minimum requirements.
The fact that most mobile operators position LTE networks as 4G is, in fact, a marketing tool. In reality, only the advanced LTE mode can be attributed to the fourth generation networks, namely, - LTE Advanced (or progressive) or LTE-A.
From the above, we can conclude: LTE differs from 4G not only in that it indicates a specific wireless network standard, while 4G is the designation of the entire set of fourth-generation data transfer modes. In fact, from a technical point of view, LTE is not even a 4G communication standard.