NTT docomo conducted the first demonstration experiment in Japan for 6G wireless technology using AI, transmitting radio waves in the 4.8GHz band in a demonstration experiment for the sixth generation mobile communication system (6G) jointly conducted by NTT, Nokia, and SK Telecom. It was confirmed that communication speeds can be improved by up to 18% in indoor environments compared to conventional methods.

Specifically, using wireless processing technology using AI developed by Nokia, the optimal modulation method according to the radio wave propagation environment is designed in the transmission processing, and communication performance is improved by applying it to the wireless interface. In addition, a known signal was previously required between the transmitter and receiver to estimate the radio wave propagation channel between the transmitter and receiver at the communication device and base station, but by using AI, it is possible to process a series of reception processes from channel estimation to signal detection all at once, making reference signals unnecessary. This makes it possible to achieve high transmission efficiency and improve communication speeds.

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