From the specific network function requirements, the IMT-2020 (5G) propulsion group defines four main application scenarios of 5G: continuous wide coverage, hot spot high capacity, low power consumption and large connection and low delay and high reliability.

Continuous wide area coverage and hot high-capacity scenarios mainly meet the needs of mobile Internet business in the 2020 and future, and are also the main technical scenarios of traditional 4G.

Continuous wide area coverage is the most basic mode of coverage for mobile communication. It aims at ensuring the mobility and continuity of the users, and provides a seamless and high-speed business experience for the users. The main challenge of this scenario is to provide users with more than 100Mbps of user experience rate at any time and anywhere (including the edge of the cell, high-speed mobile and other harsh environments). Hot high-capacity scenes mainly focus on local hot spots, providing users with extremely high data rate and meeting the high traffic density requirement of the network. 1Gbps user experience rate, tens of Gbps peak rates and traffic density requirements of dozens of Tbps/km2 are the main challenges facing the scene.