Research on 5G Air Interface Delay Performance

Abstract

The ITU (International Telecommunication Union) defines three major 5G application scenarios: eMBB, mMTC and URLLC. With the maturity and commercialization of 5G, URLLC as an important entry point in the vertical industry is also gradually improving and optimizing. In order to further study the air interface delay performance for different 5G scenarios, starting from the air interface design of 5G NR and key technologies of the physical layer, the air interface delay of 5G NR in different scenarios is analyzed, and the 4G LTE and 5G under the assumption of the 3GPP model are given. The delay comparison between NR and 5G NR after using uplink enhancement technology, and the experimental verification is carried out to demonstrate the feasibility and effectiveness of different schemes.