适用于5G的射频OTA测试技术研究

Research on radio frequency OTA testing technology applicable to 5G

在5G之前的基站射频指标测试大多采用传导测试的方法,但在5G时代由于Massive MIMO技术的应用,使得传导测试的复杂程度大幅度上升,而且传导测试完全表征基站射频性能。本文介绍了5G关键技术对射频指标测试的影响,然后通过对3GPP标准的解读,分析传统测试在5G基站测试中的弊端,并通过分析得到目前的测试方法里能够适应5G基站射频指标的测试方案及其改进方案。

The radio frequency index of base stations before 5G are mostly tested by conduction test. However, due to the application of Massive MIMO technology in the 5G era, the complexity of the conduction test has been greatly increased, and the conduction test fully characterizes the radio frequency performance of the base station. This paper introduces the impact of 5G key technologies on radio frequency index testing, and then analyzes the disadvantages of traditional testing in 5G base station testing through interpretation of the 3GPP standard. Finally, the testing scheme and improvement scheme that can adapt to the current testing method of 5G base station radio frequency index are analyzed.