Rohde & Schwarz and Qualcomm Technologies have successfully demonstrated the feasibility of the proposed FR3 frequency range for future 6G wireless networks. The FR3 range, which spans from 7.125 GHz to 24.25 GHz, was validated using the Qualcomm Technologies’ 5G mobile test platform (MTP) along with the CMX500 5G one-box signalling tester (OBT).
This collaboration confirmed the performance of the MTP during maximum throughput 5G NR use cases at 13 GHz, which is included within the proposed FR3 frequency range. This accomplishment underlines the potential of FR3 to facilitate high data rates by leveraging advanced modulation and coding schemes (MCS) alongside enhanced capacity using 4×4 MIMO technology.
Designed to accelerate development, the 5G MTP functions as a smartphone reference design, facilitating the verification and implementation of new features, whilst ensuring compliance with the 3GPP Release 17 standards.
The test configuration utilized the CMX500 OBT, which is noted for its versatility and adaptability to various NR numerologies—making it particularly conducive for research and development concerning the FR3 frequency range. The demonstration employed the CMX500 OBT to establish a signalling environment, emulating real-world conditions by transmitting an FR3 cell signal at 13 GHz.
Comprehensive analyses were performed using the CMX500 OBT, confirming the device's capability to achieve maximum throughput within the FR3 frequency range. This validates not only the equipment but also assures reliable and efficient operations as the industry moves toward 6G technology.
Christoph Pointner, Senior Vice President of Mobile Radio Testers at Rohde & Schwarz, stated, "Our collaboration with Qualcomm Technologies demonstrates the power of joint innovation. Together, we’re accelerating the development of tomorrow’s 6G technologies, pushing the boundaries of what’s possible in wireless communication." This sentiment resonates with the broader goals of both companies, which aim to drive connectivity to unprecedented levels.
Looking forward, the collaborative efforts by Rohde & Schwarz and Qualcomm Technologies will be showcased at the Mobile World Congress 2025, where industry leaders will have the opportunity to witness advanced setups dedicated to early FR3 research featuring the CMX500 OBT.
With such strong backing from industry stakeholders and significant technological advancements already underway, the future of 6G wireless networks appears promising as we continue to push the boundaries of communication technologies.