Systems & Design

Optimize 5G New Radio MIMO Test And Debug

Learn how to conduct quick and accurate MIMO testing with the UXR.


Radio technology is evolving from single antenna transmit-receive communication systems to multiple-input multiple-output (MIMO) antenna communication systems. MIMO technology is a wireless communication technique for sending and receiving multiple data signals simultaneously over the same radio channel. MIMO techniques play a prominent role in Wi-Fi communications, as well as in 4G long-term evolution (LTE) networks. Further, 5G New Radio (NR)networks use different technologies to deliver higher data rates to end-users than 4G LTE networks, thanks to massive MIMO which combines both spatial multiplexing MIMO and beamforming. MIMO for 5G NR is significantly more complex in terms of testing due to the wider bandwidths and millimeter wave (mmWave) frequencies. As engineers move from single antenna (SISO) implementations to MIMO, and then to mMIMO, the complexity will increase. These changes introduce various design and testing challenges that impact peak data rates and make it difficult to troubleshoot and debug hardware performance issues. To tackle these challenges, a comprehensive MIMO analysis, such as error vector magnitude (EVM), radio frequency (RF), and baseband impairments is critical to validate mmWave MIMO system performance in real-world scenarios.

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