NTT DOCOMO, in collaboration with NTT Corporation, Nokia, and SK Telecom, has successfully conducted Japan's first indoor test of 6G radio-interface technology in the 4.8 GHz band. This breakthrough, powered by artificial intelligence (AI), has demonstrated an impressive 18% improvement in communication speeds compared to traditional methods.
The trial, which marks a significant step towards the 6G era, focused on optimizing transmission and reception processes in various radio wave environments using AI. The advanced technology used by DOCOMO and its partners involves AI-based baseband processing that tailors modulation schemes based on the specific conditions of the propagation environment, ensuring maximum transmission efficiency.
Unlike traditional methods that rely on a reference signal between the transmitter and receiver to estimate the propagation channel, the AI-driven process takes a novel approach. It consolidates channel estimation and signal detection into a single step, eliminating the need for known signals and further enhancing the overall communication performance.
This innovation is expected to significantly improve wireless transmission capabilities, paving the way for more reliable and faster communications across diverse environments. As the test progresses, DOCOMO plans to refine the technology to optimize modulation and demodulation schemes, further advancing communication quality for a wide range of applications.
The successful test is part of DOCOMO’s ongoing efforts to accelerate 6G research and development, aiming to contribute to the global standardization and commercialization of 6G technology. The results will be highlighted at the NTT R&D Forum 2024 – IOWN INTEGRAL, which takes place from November 25.
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