5G supports service innovations toward enhanced mobile broadband (eMBB), massive machine-type communications (mMTC) and ultra-reliable low-latency communication (URLLC).
Cloud-powered AR/VR, cloud-based gaming, UAV applications, HD live broadcast, and industrial control & IoV are some applications need lower latency, roaming at the edge, and exposure of subscriber location information for real-time service optimization.

The International Telecommunication Union's Radio communication Sector (ITU-R) defines three significant areas of usage and applications as part of its 5G initiative:

Source: Huawei 5G documentation (https://www.huawei.com/minisite/hwmbbf16/insights/5G-Nework-Architecture-Whitepaper-en.pdf)
It also defined 5G network capability requirements for throughput, latency, connection density and spectral efficiency improvement.