KT and Rohde & Schwarz to showcase AI-enhanced radio transmission performance In a joint 6G AI proof-of-concept demonstration, the CMX500 one-box tester from Rohde & Schwarz shows significant downlink throughput gain in an AI-based wireless transmission compared to conventional non-AI technology. Additionally, the demonstration illustrates how this translates to an enhanced video streaming user experience. This collaboration validates the feasibility of multi-vendor AI interoperability for future 6G standardization
The CMX500 shows significant downlink throughput gain in an AI-based wireless transmission.
KT has joined forces with Qualcomm Technologies, Inc. and Rohde & Schwarz to present significant performance gains achievable through AI-enhanced radio transmission, paving the way for optimized 5G-Advanced and future 6G networks. Visitors to MWC Barcelona 2026 can experience the demonstration at the KT booth 4A60 in hall 4.
Qualcomm Technologies and Rohde & Schwarz collaborated in 2025 to realize Channel State Information (CSI) feedback technology leveraging AI/ML for advanced mobile networks and RAN infrastructure. The telecommunications company KT, driver of 6G research and AI implementation, now joined the effort to demonstrate the practical benefits of integrating AI into next-generation wireless systems.
In the setup, Qualcomm's AI-enabled wireless device prototype connected to the CMX500 , configured as an AI-enabled base station emulator, achieves an increase in downlink throughput of approximately 50% compared to conventional non-AI technology. Leveraging the advanced application testing capabilities of the CMX500, the demonstration illustrates how the increased performance translates to an enhanced user experience for video streaming applications. The improvement was achieved using a two-sided AI model for CSI feedback, enabling cooperative compression of wireless channel state information transferred between the device and base station. The model leverages CSI-RS-based analysis and compressed feedback, significantly enhancing radio transmission performance in massive MIMO scenarios. AI-driven CSI enhancements are expected to result in even greater efficiency, reduced overhead and improved user experience in 5G-Advanced and future 6G networks.
A key achievement of this work is the validation of an interoperable architecture allowing real-time cooperation between AI models from different vendors - a critical step towards 6G standardization and a more open, flexible network ecosystem. The precise and controlled testing environment of the CMX500 one-box tester proves essential for accurately assessing the performance of these sophisticated AI-based algorithms under realistic radio conditions.
Alexander Pabst, Vice President of Wireless Communications at Rohde & Schwarz, said: We are proud to collaborate with KT and Qualcomm in showcasing the immense potential of AI in next-generation networks. The CMX500's ability to verify these performance gains underscores our commitment to providing leading-edge test and measurement solutions for the future of communication technologies.
Lee Jong-sik, Executive Vice President and Head of KT's Future Network Research Laboratory, said: 6G represents an evolution towards intelligent networks that combine AI and wireless communications rather than simply delivering higher speeds. He added that KT will continue to secure AI-based wireless technologies that enhance customer experience through strategic partnerships.
Spencer Kim, Vice President and President of Qualcomm Korea, QUALCOMM CDMA Technologies (Korea) YH, noted: 6G will serve as an innovation platform for advanced intelligent edge AI, enabling AI-driven control of network resources. Our collaboration with Rohde & Schwarz and KT marks a critical step in bringing this vision to life and is expected to accelerate progress in next-generation communications.
At MWC Barcelona 2026, visitors can learn how to achieve significant performance gains through AI-enhanced CSI feedback at the KT booth 4A60 in hall 4. For further information on Rohde & Schwarz test solutions for AI and ML in 6G networks, visit: www.rohde-schwarz.com/6G-AI-ML
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KT and Rohde & Schwarz to showcase AI-enhanced radio transmission performance In a joint 6G AI proof-of-concept demonstration, the CMX500 one-box tester from Rohde & Schwarz shows significant downlink throughput gain in an AI-based wireless transmission compared to conventional non-AI technology. Additionally, the demonstration illustrates how this translates to an enhanced video streaming user experience. This collaboration validates the feasibility of multi-vendor AI interoperability for future 6G standardization 
