Abstract
Over-the-air (OTA) testing is an industry standard practice for evaluating transceiver performance in wireless devices. For the fifth generation (5G) and beyond wireless systems with high integration, OTA testing is probably the only reliable method to accurately measure the transceiver performance, suitable for certification as well as for providing feedback for design verification and optimization. Further, multiple-input multiple-output (MIMO) technology is extensively applied for stable connection, high throughput rate, and low latency. In this paper, we provide an overview of the three main methods for evaluating the MIMO OTA performance, namely, the multiprobe anechoic chamber (MPAC) method, the reverberation chamber plus channel emulator (RC+CE) method, and the radiated two-stage (RTS) method, with the aim of providing a useful guideline for developing effective wireless performance testing in future 5G-and-beyond wireless systems.
摘要
空中测试 (OTA) 是评估无线设备中收发性能的一种行业标准做法. 对于第五代 (5G) 和更高集成度的无线系统, OTA 测试可能是能够准确测量收发器性能的唯一可靠方法, 可用于设备认证, 并为设计验证和优化提供反馈. 此外, 多入多出 (MIMO) 技术被广泛用于稳定连接、 高吞吐率和低延迟的无线系统中. 本文概述了评估 OTA MIMO 性能的 3 种主要方法, 即多探头法 (MPAC)、 混响室加信道模拟器 (RC+CE) 方法和辐射两步法 (RTS), 目的是为 5G 及未来无线系统的无线性能测试提供有用指导.
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Project supported by the National Natural Science Foundation of China (No. 61671203)
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Yihong QI and Jun LI conducted the research. Jun LI processed the data and drafted the manuscript. Yihong QI and Jun FAN revised and finalized the paper. All authors participated in the technical discussions.
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Jun LI, Yihong QI, and Jun FAN declare that they have no conflict of interest.
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Li, J., Qi, Y. & Fan, J. Over-the-air measurement for MIMO systems. Front Inform Technol Electron Eng 22, 1046–1058 (2021). https://doi.org/10.1631/FITEE.2000230
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DOI: https://doi.org/10.1631/FITEE.2000230
Key words
- Over-the-air (OTA) testing
- Wireless performance testing
- Fifth generation (5G) and beyond
- Multiple-input multiple-output (MIMO)
- Multiprobe anechoic chamber (MPAC)
- Radiated two-stage (RTS)
- Reverberation chamber plus channel emulator (RC+CE)