Tokyo, February 22, 2024 – (JCN Newswire) – NTT Docomo, Inc. (Docomo) and Nippon Telegraph and Telephone Corporation (NTT) today announced that they have joined carrier SK Telecom Co., Ltd. (SK Telecom) in a joint 6G trial with the world’s leading vendors and global carriers. and Rohde & Schwarz GmbH & Co. KG, a manufacturer of high-frequency, high-performance measurement equipment.
The two new companies join existing partners1,2, Fujitsu Limited (Fujitsu), NEC Corporation (NEC), Nokia, Ericsson, and Keysight Technologies (Keysight Technologies), and join Docomo and NTT Expanded joint efforts with seven companies to develop frequency bands that could potentially be used for 6G communications.
The details of the collaboration between the two newly added companies are as follows. As part of a technology partnership with Docomo and NTT, SK Telecom will participate in a demonstration experiment that uses AI technology to adjust wireless interfaces to various propagation environments, which Docomo is jointly conducting with NTT and Nokia. participate. Going forward, we will leverage SK Telecom’s expertise as a carrier and ecosystem builder, similar to DoCoMo, to expand the trial to environments closer to the intended use. Additionally, Rohde & Schwarz uses measurement system design techniques with channel models to evaluate new wireless sensing solutions beyond mobile communication technologies, and uses measurements in real-world environments and channel models to evaluate wireless sensing performance. Evaluate.
Separately, Docomo and NTT also announced the results of demonstration experiments4,5 that utilized new wireless communication technologies and AI that have been conducted since June 2022. This time, we obtained the following new results.
Nokia: Trial of radio access technology for 140GHz
Results In Japan, beamforming tests using Nokia’s 140 GHz wireless system prototype and a 128-element phased array antenna6 were successfully conducted, with various The effectiveness of phased array beam steering in different directions was confirmed. Future Plans Further Testing The research team will focus on more specific applications to confirm the practicality of sub-terahertz (sub-THz) signals7 in indoor environments.
Fujitsu: Distributed MIMO trial at 100GHz and 300GHz
Results Using Fujitsu’s 100GHz phased array antenna prototype and wireless circuit, we succeeded in acquiring propagation path information equivalent to a distributed MIMO system. Future plans We will carry out simulations and analyze shield resistance, distributed MIMO characteristics, etc.
Keysight Technologies: Architecture for sub-THz propagation measurements, propagation measurements and channel model formulation
Results By combining an 896-element ultra-multi-element antenna developed by NTT with a received signal analyzer developed by Keysight Technologies, we succeeded in creating a device that visualizes the spatial arrival of sub-THz radio waves in real time. Additionally, by combining the SISO channel sounder developed mainly by Docomo with the signal transceiver built by Keysight Technologies, it has become possible to observe the temporal arrival of sub-THz signals with ultra-high resolution. . Docomo and his company NTT successfully used this equipment to conduct wireless propagation experiments for ultra-broadband communications in the sub-THz band. Future plans Channel models with dynamic tracking capabilities in real-world environments will be further developed for the design of efficient ultra-wideband communications. -Broadband 6G communication system.
Docomo and NTT will continue to conduct demonstration experiments in collaboration with major domestic and international vendors and overseas carriers. The two companies will continue to further expand their partners, promote various initiatives that leverage their respective strengths, and advance research and development of various mobile communication technologies. Through these initiatives, Docomo and NTT aim to accelerate research and development that will contribute to the global standardization and commercialization of 6G.
The various trials listed above will be exhibited at the Docomo booth at MWC Barcelona 2024, which will be held in Barcelona, Spain from February 26th.
Reference: SK Telecom and Nokia held press releases simultaneously today. Press Release (SK Telecom): SKT, Nokia, NTT and Docomo partner to implement AI on 6G air interface (www.sktelecom.com/en/press) /press_detail.do?idx=1602) Press Release (Nokia ): Nokia, SKT, NTT, Docomo partner to implement AI on 6G air interface (https://shorturl.at/bOQY8)
(1) Docomo and NTT collaborate on 6G demonstration experiment with the world’s leading mobile technology vendor www.docomo.ne.jp/english/info/media_center/pr/2022/0606_00.html
(2) Docomo and NTT expand 6G collaboration with the world’s top vendors such as Ericsson and Keysight Technologies www.docomo.ne.jp/english/info/media_center/pr/2023/0227_01.html
(3) Docomo and SK Telecom collaborate on technological advances in Metaverse, digital media, and 5G/6G www.docomo.ne.jp/english/info/media_center/pr/2022/1121_00.html
(4) World’s first successful demonstration of distributed MIMO that resolves shielding issues and continues wireless connectivity in the 28GHz band www.docomo.ne.jp/info/media_center/pr/2022/1031_00.html
(5) Nokia, Docomo and NTT make two important advances in 6G #MWC23 https://shorturl.at/cimCI
(6) The antenna directionality was directed toward the receiver position by controlling the phase of multiple antenna elements.
(7) 90~300GHz band. 5G Evolution has higher directionality than millimeter waves and is easily blocked by obstacles.
About NTT Docomo
NTT DOCOMO is a leading Japanese mobile operator with over 89 million subscribers and one of the world’s largest contributors to 3G, 4G and 5G mobile network technology. Beyond core communications services, Docomo is collaborating with an increasing number of business entities (“+d” partners) to challenge new frontiers and provide exciting and convenient additions that change the way people live and work. We will create value services. Under our medium-term plan for 2020 and beyond, Docomo will develop a cutting-edge 5G network and promote innovative services that exceed customer expectations and surprise and impress. www.docomo.ne.jp/english/
About NTT
NTT contributes to the realization of a sustainable society through the power of innovation. We are one of the world’s leading technology companies serving consumers and businesses as a mobile operator, infrastructure, network, application and consulting provider. Our services include digital business consulting, managed application services, workplace and cloud solutions, data center and edge computing, all supported by our deep global industry expertise . The company’s revenues exceed $97 billion, the company has 330,000 employees and annual research and development investments of $3.6 billion. Our operations span more than 80 countries and territories, serving customers in more than 190 of those countries. We serve over 75% of the Fortune Global 100 companies, thousands of other business and government customers, and millions of consumers. https://group.ntt/
