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Japan's NTT DOCOMO teamed up with Ericsson and Japanese glass manufacturer AGC to try out a 5G glass car antenna to achieve a record 8Gbps transmission rate at 100km/h.
The antenna used in this test was a 5G antenna developed by AGC to support the 28 GHz band.
According to Ericsson, the glass antenna is not easily visible from the outside of the vehicle and will not have a negative impact on the vehicle design during installation.
The glass antenna allows for the transmission and reception of 5G wireless signals using beamforming and multiple input multiple output (MIMO) functions to achieve stable high speed communication with a moving vehicle.
When the vehicle was traveling at a speed of 30 km/h, the test measured a speed of 11 Gbps. The test was conducted on a 2.2-kilometre test site of the Japan National Land and Transportation Administration's Institute of Land and Resources Policy Research in Ibaraki Prefecture.
Docomo announced that a total of eight antenna elements were installed on the windshield of the test vehicle, including side and rear windows, to enable the vehicle to receive wireless signals from all directions. At the same time, a 5G mobile station is mounted on the passenger seat of the vehicle. The 5G base station and mobile station equipment are provided by Ericsson Japan.