Mitsubishi Electric and NTT DOCOMO have announced that both the companies have achieved world's first 5G mobile telecommunications proof of concept for 27Gbps and 25Gbps maximum throughputs via one mobile terminal over communication distances of 10m and 100m, respectively, using the 28GHz radio frequency. The demonstration was conducted during joint outdoor field trials using 28GHz-band massive-element antenna systems and 16-beam spatial-multiplexing technology with 500MHz bandwidth. The trial took place in Kamakura, Kanagawa Prefecture Japan from September 10 to 28, 2018. For outdoor trials using the 28GHz band, Mitsubishi Electric used an antenna system with 16-beam spatial-multiplexing technology. Base-station antennas installed on the wall of a building directed beams to mobile-terminal antennas installed on the rooftop of a vehicle. The company says that the trial was the world's first successful wireless downlink transmission at maximum data rates of 27Gbps and 25Gbps for per one mobile terminal when the communication distance was 10m and 100m, respectively. Both the companies have jointly undertaken "The research and development project for realization of the fifth-generation mobile communications system - High data rate and low-power-consumption radio access technologies with higher-frequency-band and wider-bandwidth massive MIMO" commissioned by Japan's Ministry of Internal Affairs and Communications. Both the companies have carried out 28GHz-band ...
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