面向低空5G-A网络的空地一体化测试系统设计OA

Under the rapid development of the low-altitude economy and drone applications,a drone-based 5G integrated air-ground testing system is designed and implemented to address the inadequate deployment of 5G low-altitude networks and the lack of mature coverage testing methods.This system utilizes a drone as a carrier,equipped with a high-performance millimeter-wave spectrum scanner.It features multi-standard demodulation,multi-band signal monitoring,and real-time situational awareness,effectively overcoming the limitations of traditional ground-based testing methods in extensive and dynamic low-altitude measurements.This paper provides a systematic analysis of the 5G NR synchronization signal structure and downlink synchronization procedures,and the application of the spectrum scanner in SSB positioning,and the construction of the hardware and software platform is provided.Practical tests conducted over the Yangtze River low-altitude area in Nanjing demonstrate that the system possesses excellent signal synchronization,demodulation capabilities,and high-precision measurement performance.It can collect synchronization signal parameters from multiple base stations and cells in real time,enabling network coverage situational awareness.This work provides effective technical support for the planning,optimization,and interference troubleshooting of 5G low-altitude networks.