NTT Docomo achieved a wireless real-time transmission of 8K video deploying radio access technology for 5G mobile communications systems in a trial jointly conducted with Nokia on 19 May, claiming a world first. The transmission of ultra-high-resolution 8K video was achieved by a combination of an experimental system jointly developed by Docomo and Nokia, and H.265/HEVC encoding techniques developed by NTT Media Intelligence Laboratories. The system uses beam-tracking techniques to transmit millimeter wavelength signals at an extremely high frequency of 70GHz. In the trial, 8K video of 48Gbps was compressed by the encoder into signals ranging from 145Mbps to 85Mbps and successfully transmitted without delay.
Docomo and Nokia have been collaborating since May 2014 to develop radio access technologies for future 5G mobile networks. Recent achievements include ultra-high-speed data transmission in excess of 2Gbps at the Roppongi Hills high-rise complex in Tokyo. These achievements will be demonstrated during the 5G Tokyo Bay Summit 2016, a 5G promotional event and part of the Wireless Technology Park 2016, at the Tokyo Big Sight complex from 25 May. Docomo will further collaborate to lead research and development for future 5G mobile communications and transmission of even higher definition video.
