TOKYO, June 6, 2022 – (JCN Newswire) – – NEC Corporation (TSE: 6701) announced today that it has agreed to collaborate with NTT DOCOMO, INC. (DOCOMO) and NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) on experimental testing of 6th generation (6G) mobile communication system.

6G will require dramatic advances in communications technology to achieve speeds and capacities 10 to 100 times faster than the 5th generation (5G) mobile communications system, with ultra-low power consumption of 1/100 and coverage from the depths of the ocean to the heights of outer space.

NEC will work with DOCOMO and NTT on a distributed MIMO technology (1) to utilize the midband of 6 GHz or above to the sub-terahertz band, and OAM multiplex transmission technology (2) which realizes large capacity by spatial multiplexing of radio waves at high frequency band . NEC will also conduct R&D activities on device technologies to reduce size and power consumption, as well as high-precision beamforming technologies, transmission methods and propagation models suitable for high bands. frequency. This is in addition to the development of optimization and signal processing technologies using AI. NEC aims to develop and realize these technologies to support the start-up of 6G services by DOCOMO and NTT around 2030.

NEC sees 6G not only as a dramatic evolution in radio technology, but also as a social infrastructure that combines the use of optical communications, operational sophistication through IOWN(3), a concept for realizing new intelligent societies that do not are not yet possible with today’s internet and service/application infrastructures such as distributed computing and AI. Through activities with DOCOMO and NTTNEC will accelerate the R&D of communication technologies for 6G and strive to create social value by realizing 6G services.

Naoki TaniExecutive Vice President and Chief Technology Officer at DOCOMO, said, “NEC and DOCOMO have been collaborating since 2014 to verify wireless technologies and create new use cases for the commercial launch of 5G. We are delighted to work with NEC as a partner in these trials. of 6G technology. DOCOMO and NTT will now begin verification of technologies that enable stable communication in new frequency bands, such as sub-terahertz bands, realize large capacity and help commercialize 6G with vertical industry partners. »

*IOWN is a trademark or registered trademark of NIPPON TELEGRAPH AND TELEPHONE CORPORATION

(1) MIMO (Multi Input Multi Output) transmission technologies between the antennas of the base stations dispersed in an area and the user terminals. It is expected to increase communication stability even in a high-frequency band which is highly linear and sensitive to shielding material, and it shows promise for effectively utilizing the high-frequency bands of 6G.

(2) Technologies for increasing the number (multiplexing number) of data signals to be transmitted at the same time by placing a signal on a plurality of radio waves having different states of orbital angular momentum (OAM mode) and transmitting them wirelessly . By combining conventional polarization multiplexing methods, even higher frequency utilization efficiency and greater capacity can be achieved. The use of millimeter waves and sub terahertz waves is desired in order to extend the transmission distance.

(3) Innovative Optical and Wireless Network (IOWN) is an advanced communication infrastructure integrating photonics, computing and other advanced technologies to create a smarter world promoted by IOWN Global Forum (new window https://iowngf.org/).

About NEC Corporation

NEC Corporation has established itself as a leader in the integration of information technology and networks while promoting the brand statement “Orchestrating a Brighter World”. NEC enables businesses and communities to adapt to the rapid changes occurring both in society and in the marketplace, as it provides the social values ​​of safety, security, fairness and efficiency to promote a more sustainable world where everyone has the chance to reach their full potential. For more information, visit NEC at https://www.nec.com.

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