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Things are moving quickly in the world of next-generation 5G mobile communications, even though many mobile users have only recently upgraded to 4G and while 4G itself still continues to evolve.

Docomo.INC of Japan announced in late 2015 that a 5G trial conducted with Nokia Networks at the Roppongi Hills high-rise complex in Tokyo achieved ultra high speed data transmission in excess of 2Gbps. The trial used millimeter-wavelength signals with an extremely high frequency of 70 GHz, a key development for the eventual commercial use of 5G wireless technology.

More recently in February 2016 Docomo and Sweden’s Ericsson announced that they achieved a cumulative 20-gigabit-per-second transmission speed with two connected 5G terminals in outdoor trials. If the trials continue to be successful, this would help bring the advent of fifth generation communications ever closer.

The trial took place in the city of Yokosuka, Japan and utilized a specification defined jointly by Docomo and Ericsson.

The data speeds were achieved thanks to multi-beam multiple-input multiple-output (MIMO) technology, which increases data speeds by multiplexing radio waves simultaneously. Also, by utilizing a beam-forming technique, each one consisting of 64 antenna elements to converge highly directional long-distance signals on a single target, the cumulative 20Gbps throughput was successfully transmitted.

Docomo has publicly committed itself to having 5G service up and running in time for the Tokyo Olympics in 2020.

According to Docomo engineers their target is to achieve several gigabits per second in 2020 and over 10 gigabits per second after that. Docomo hopes to see the arrival of new 5G applications earlier than 2020 in order to to promote 5G before then.

For more information on the future of 5G Docomo, have produced a white paper which can be downloaded for free in PDF format

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