{"id":24108,"date":"2026-02-25T19:16:25","date_gmt":"2026-02-25T18:16:25","guid":{"rendered":"https:\/\/telecomkh.info\/?p=24108"},"modified":"2026-02-25T19:16:25","modified_gmt":"2026-02-25T18:16:25","slug":"rohde-schwarz-advances-ai-ran-testing-using-digital-twins-with-nvidia","status":"publish","type":"post","link":"https:\/\/telecomkh.info\/?p=24108","title":{"rendered":"Rohde & Schwarz advances AI-RAN testing using digital twins with NVIDIA"},"content":{"rendered":"

Rohde & Schwarz, in collaboration with NVIDIA, continues to drive AI-RAN innovation for 5G-Advanced and 6G. The latest testbed to be showcased at MWC Barcelona 2026 integrates ray-tracing-based, site-specific channel emulation with the NVIDIA Sionna Research Kit to enable digital twin-based hardware-in-the-loop testing without leaving the lab<\/strong><\/p>\n

Rohde & Schwarz will showcase a new milestone in AI-driven wireless system testing at MWC Barcelona. The testbed, developed in collaboration with NVIDIA, integrates hardware-in-the-loop site-specific channel emulation using the NVIDIA Sionna Research Kit, enabling testing of AI-RAN applications under realistic channel conditions. The demonstration highlights the long-term collaboration of Rohde & Schwarz and NVIDIA, focusing on prototyping and validation of AI-RAN innovation with cutting-edge test and measurement solutions.
\nEvolving from prior proof-of-concepts in advanced neural receiver design \u2013 including custom constellations for pilotless communication \u2013 the new testbed advances from link-level validation to system-level verification using the full 5G NR protocol stack.
\nPowered by a single NVIDIA DGX Spark, the NVIDIA Sionna Research Kit runs a software-defined 5G RAN based on OpenAirInterface, while supporting AI inference workloads that comply with the strict real-time constraints of wireless systems. To showcase the flexibility of the research platform, a novel AI\/ML-enhanced link adaptation algorithm has been integrated into the end-to-end system. It dynamically adjusts the downlink modulation and coding scheme (MCS) to optimize spectral efficiency and link reliability. The AI-driven link adaptation can learn not only site-specific propagation characteristics but also user equipment-specific behavior on the fly, emphasizing the need for end-to-end testbeds that capture these effects.
\nThe testbed integrates the R&S\u00aeSMW200A vector signal generator featuring dynamic channel emulation capabilities and the FSW signal and spectrum analyzer. Jointly, these instruments enable the emulation of complex site-specific radio channels, seamlessly interfacing with the NVIDIA Sionna RT differentiable ray-tracing software. This closed-loop setup enables researchers and developers to evaluate the performance of novel AI-driven RAN features under dynamic, site-specific RF conditions \u2013 all without leaving the lab.
\nGerald Tietscher, Vice President Signal Generators, Power Supplies and Meters at Rohde & Schwarz, said: \u201cWe\u2019re excited to continue our ongoing collaboration with NVIDIA with this latest proof-of-concept for testing AI-enhanced base stations for both 5G-Advanced and 6G under realistic propagation conditions. Leveraging digital twin technology and ray tracing, this approach aims to bridge the gap between AI-driven wireless simulations and real-world deployment, facilitating more efficient and accurate testing of next-generation receiver architectures.\u201d
\nSoma Velayutham, global industry business development lead for telecommunications at NVIDIA said: \u201cSynthetic data generation is transforming the way we train and validate AI-RAN systems by ensuring accuracy, scalability, and privacy, especially in settings of sparse data. Rohde & Schwarz, leveraging the NVIDIA Sionna Research Kit, exemplifies how industry-leading expertise and innovative technology can come together to accelerate progress in this critical field.\u201d<\/p>\n

Visitors to MWC Barcelona 2026 can experience the hardware-in-the-loop validation of novel AI-RAN features live and speak with experts from Rohde & Schwarz and NVIDIA at the Rohde & Schwarz booth 5A80 in hall 5 from March 2 to 5, 2026.<\/p>\n

Above, image credited to Rohde & Schwarz<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Rohde & Schwarz, in collaboration with NVIDIA, continues to drive AI-RAN innovation for 5G-Advanced and 6G. The latest testbed to be showcased at MWC Barcelona 2026 integrates ray-tracing-based, site-specific channel emulation with the NVIDIA Sionna Research Kit to enable digital twin-based hardware-in-the-loop testing without leaving the lab Rohde & Schwarz will showcase a new milestone … <\/p>\n

Continue reading \u00abRohde & Schwarz advances AI-RAN testing using digital twins with NVIDIA\u00bb<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":24109,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[60,56],"tags":[],"_links":{"self":[{"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/posts\/24108"}],"collection":[{"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/telecomkh.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24108"}],"version-history":[{"count":1,"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/posts\/24108\/revisions"}],"predecessor-version":[{"id":24110,"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/posts\/24108\/revisions\/24110"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/telecomkh.info\/index.php?rest_route=\/wp\/v2\/media\/24109"}],"wp:attachment":[{"href":"https:\/\/telecomkh.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/telecomkh.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/telecomkh.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}