Rohde & Schwarz has enabled Qualcomm Technologies to demonstrate that the giga-multiple input multiple output (MIMO) system for tomorrow’s infrastructure is ready and effective to operate in the FR3 frequencies. It promises enhanced data performance while offering coverage comparable to current 5G massive MIMO networks operational at 3.5 GHz.
FR3, which is also known as upper-midband, spanning 7.125 to 24.25 GHz, will open a new frontier for mobile communication technology. Rohde & Schwarz technology plays a key role in enabling Qualcomm Technologies to show the readiness and effectiveness of the latest radio frequency (RF) modem technology for FR3.
To validate the performance of this prototype, Qualcomm Technologies utilised the R&S SMW200A vector signal generator and R&S FSW signal and spectrum analyser from Rohde & Schwarz. The setup included specialised firmware for the testing of different subcarrier spacings with wider signal bandwidths compared to today’s third generation partnership project (3GPP) physical layer specifications. The wider bandwidths will ultimately enable higher data rates and lower latency.
Commenting on the development, Andreas Pauly, chief technology officer (CTO), Rohde & Schwarz, said, “We are thrilled to extend our support of Qualcomm Technologies and explore the new frontier of mobile communications together. Our tailored test solutions are instrumental in advancing research for 5G-advanced and 6G networks, and exploring the possibilities of the FR3 frequency range lays the foundations for the success of tomorrow’s mobile applications.”
Meanwhile, Tingfang Ji, vice president, engineering – Qualcomm wireless research, Qualcomm Technologies, Inc., said, “We are committed to pioneering next-generation mobile technologies and are grateful to Rohde & Schwarz for its support in helping to make this a reality. Our efforts to enable giga-MIMO in upper midband for wide-area coverage help to set the stage for 6G and a transformative leap in wireless communication.”
Further, at MWC Barcelona, Rohde & Schwarz will demonstrate a high-performance signal generation and analysis setup for early FR3 research, featuring the latest vector signal generator and analyser products. The setup consists of the brand-new R&S SMW200A, not only with a new front panel and user interface but also significant improvements in earned value management (EVM) performance. On the analysis side, the R&S FSVA3000 includes special features like IQ noise cancellation to achieve outstanding EVM measurement performance thanks to a noise corrected measurement path. Furthermore, dedicated 5G signals for FR3 are being generated and analysed as part of the demonstration.
