Samsung and KDDI Successfully Conduct Proof of Concept for AI-Powered Radio Network Speed Optimization in Japan on Commercial 5G SA

Samsung Electronics Co., Ltd. (Headquarters: South Korea, hereinafter referred to as Samsung) announced today that it has successfully completed a proof of concept for radio network speed optimization using Samsung's AI solution, "RSO (RAN Speed Optimizer)," on KDDI's commercial 5G SA (Stand Alone) network in Japan. This joint proof of concept, conducted over several months starting in the latter half of 2025, demonstrated that the AI solution is effective in actual network operations and can contribute to significant improvements in network performance.

The proof of concept, carried out in urban, suburban, and rural areas in and around Tokyo, utilized 100MHz of TDD frequency in the 3.7GHz band across hundreds of cells. As a result of training a robust AI model under real-world conditions with diverse traffic and network environments, Samsung's RSO increased 5G communication speeds by an average of 31% across the entire test area during peak hours, with a maximum increase of 52% recorded in urban areas. In addition to this significant performance improvement, the experiment demonstrated the potential and effectiveness of AI solutions in enabling more precise and adaptive network optimization in commercial environments.

Samsung's AI solution RSO achieves network performance improvements through unique parameter optimization for each cell. This represents a significant change and advancement beyond traditional cluster-level approaches where AI adjustments apply the same parameter settings to multiple cells. Samsung's RSO uses proprietary AI-based predictive models to automatically analyze site environment data and recommend optimized parameters for each cell. RSO is a diverse AI solution and is part of Samsung's CognitiV Network Operations Suite (NOS), which consists of AI agents and intelligent applications.

The proof of concept also confirmed that by automatically adapting to changes in different network environments, telecommunications operators can reduce manual operations and expect improved cost efficiency. Furthermore, users will benefit from faster and more reliable connections when watching videos, browsing the web, and making calls.

▲About RSO

Kazuhiro Furuhata, General Manager of Network Division at KDDI Corporation, stated, "In this proof of concept, we confirmed that AI can achieve individual tuning at the base station level, which has been a long-standing challenge, by combining KDDI's cultivated network technology expertise with Samsung's advanced technology. We will continue to promote technology development utilizing AI to provide our customers with a more comfortable network experience."

June Moon, Executive Vice President and Head of Network R&D Team at Samsung Electronics, said, "Samsung continues to support telecommunications operators like KDDI in adopting the latest AI technologies to build intelligent and efficient networks. Since 2024, we have actively advanced proof of concept experiments and AI model training for RSO, achieving groundbreaking progress in its capabilities. This proof of concept with KDDI has shown that Samsung's AI-powered technology can bring advanced optimization communications to commercial networks in diverse network environments, realizing stable and seamless connections."

Based on this proof of concept, Samsung and KDDI plan to continue advancing broader AI commercial network support. The two companies' long-standing cooperation in deploying fully virtualized networks will accelerate the optimal foundation for KDDI to move forward towards AI-native network operations.

Samsung is a pioneer in successfully delivering end-to-end 5G solutions, including chipsets, radio, and core networks. Through continuous R&D, Samsung is driving the evolution of 5G networks and paving the way for 6G and beyond with its market-leading product portfolio. Offering a diverse range of products and technologies, from dedicated RAN (Radio Access Network), vRAN (virtualized RAN), Open RAN, AI-RAN, and cloud-native cores to private network solutions and AI-powered automation tools, Samsung is currently providing innovative network solutions to mobile operators and delivering infinite connectivity to hundreds of millions of users worldwide.

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