Analysis of Applicability of Radiated Two-Stage Test Method to 5G Radiated Performance Measurement

摘要

This paper analyses the feasibility of extending the Radiated Two-Stage (RTS) MIMO OTA test method to demodulation and RF performance measurement for 5G BS and UE. It first introduces the concept of the Radiated Two-Stage (RTS) test method, which was first proposed to 3GPP in. Based on the latest MIMO OTA harmonization results analysis, 3GPP concluded that harmonization between MPAC and RTS for FDD can be confirmed and incorporated by 3GPP in Technical Report 37.977 v14.5.0. The potential extension of the RTS method to active antenna systems and BS demodulation performance test was first covered in and. The proposal to apply the RTS method to mmWave NR UE demodulation performance test has been made in several papers. This paper will show some analysis of RTS extension from 2 Rx to 4 Rx for sub-6G UE MIMO OTA test, and multiple RF channel Tx radiated performance parallel measurement results based on the RTS concept @28GHz. This paper also analyses the limitations and advantages of applying RTS for mmWave BS and UE demodulation testing and proposes possible solutions to open issues.