Performance Evaluation for 5G NR Communication System based on OpenAirInterface

With the freeze of 3GPP Release 15 protocols, the world has entered the 5G commercial era. In recent years, major communication companies and organizations have set up project groups for IMT-2030 to put forward proposals on the 6G consideration of ongoing development, in which case the existing 5G new radio technology needs to be thoroughly verified. This paper, based on the software-defined radio (SDR) open source platform OpenAirInterface (OAI), provides a laboratory verification platform for 5G NR to evaluate the system performance in typical channel models. It provides a straightforward and flexible way of verifying the connectivity effect between the 5G core network (5GC), next Generation Node Base station (gNB) and User Equipment (UE) by visualization means such as software oscilloscopes.