5G Wireless Network Digital Twin System Based on High Precision Simulation

Abstract

For a long time, the wireless signals of the communication network are invisible and intangible, which brings difficulties in recognizing and maintaining the network. We can achieve mathematical modeling and quantitative analysis of 5G wireless signals with the help of the ray tracing propagation model. Furthermore, we can build a 5G wireless network digital twin system through the high-precision simulation calculation and GIS presentation in the horizontal and vertical dimensions. In order to ensure the accuracy of the simulation, the coefficient correction of the ray tracing model is carried out by using the combination of the Lagrangian function and the KKT boundary condition. The 5G wireless network digital twin system can be precisely obtained through the corrected propagation model. Based on the digital twin system, the weak coverage areas of 5G network can be accurately located and the weak coverage buildings can also be accurately identified. In this way, we can carry out engineering parameter optimization and 5G indoor base station planning even in off-site work. The 5G wireless network digital twin system can achieve the goals of cost reduction and accurate resource allocation, which is of great guiding significance for engineering practice.