Small, Efficient 5G Multisector Antenna Indoor Base Station Achieves World’s First Demonstration using 28GHz JCN Newswire

Small, Efficient 5G Multisector Antenna Indoor Base Station Achieves World’s First Demonstration using 28GHz

January 30, 2023
TOKYO, Jan 30, 2023 - (JCN Newswire via SEAPRWire.com) - Yokohama National University, NTT DOCOMO, INC., NIHON DENGYO KOSAKU Co., Ltd. and Fujitsu Ltd. announced today that they successfully demonstrated a 5G indoor base station incorporating a multisector antenna using the 28GHz band on January 27. The device, which incorporates circuitry just 1/10th the size of a conventional indoor base station, is extra small for easy installation, minimizes energy consumption and achieves highly efficient signal propagation, all of which will contribute to the realization of high-quality connectivity indoors.The demonstration, in which a conventional 5G base station control unit communicated with the new device via a 28GHz signal, confirmed that a single multisector antenna can receive radio waves in all directions using radio beam control. DOCOMO previously measured the directivity of a single element in a multisector antenna in 2022, but the DOCOMO believes that this was the world's first demonstration to use a multisector antenna in a 5G base station equipped for radio beam control.A multisector antenna divides its surrounding 360-degree space into multiple areas (sectors) for transmitting and receiving radio waves simultaneously and independently in each sector. The antenna used in the demonstration contained 12 directional elements arranged in a radial pattern, each of which effectively transmitted and received radio waves in a specific direction. A Yagi-Uda antenna developed originally for television broadcasting was deployed for the high-frequency band. Conventionally, multiple multielement planar-array antennas are required to propagate high-frequency radio waves to all areas of an indoor environment, requiring large circuitry that consumes significant amounts of energy and demands ample space for installation.By using 5G-standardized beam-switching technology, however, the newly demonstrated multisector antenna incorporated in a small base station managed to achieve high gain in all directions with minimized energy consumption. Installing the envisioned device on ceilings will help to deliver high-frequency radio waves effectively throughout each room, thus reducing the number of base stations needed to construct high-quality indoor communication environments.High-frequency radio waves have strong linearity and their strength tends to diminish easily, making it difficult to deliver such waves over wide areas. Conventionally, four or more base station antennas are required to transmit radio waves in all directions in a room, but the recent demonstration has now shown that just one multisector antenna can handle the task.Going forward, DOCOMO plans to conduct verification tests using the new base station in various indoor environments, based on which it intends to finalize the antenna circuitry and incorproate it in commercial base stations for the establishment of high-quality indoor communication environments at a reduced cost. In addition, the Yokohama National University, DOCOMO, NIHON DENGYO KOSAKU and Fujitsu will work towards 5G Evolution & 6G in order to achieve compatibility with future mobile networks' high-frequency millimeter and terahertz waves for the further enhancement of indoor connectivity.DOCOMO will introduce these initiatives at docomo Open House '23, which will be held online from Thursday, February 2.For more information, visit www.docomo.ne.jp/english/info/media_center/pr/2023/0130_01.htmlAbout Yokohama National UniversityYOKOHAMA National University (YNU) is a Japanese national university founded in 1949. YNU provides students with a practical education utilizing the wide expertise of its faculty and facilitates engagement with the global community. YNU's strength in the academic research of practical application sciences leads to high-impact publications and contributes to international scientific research and the global society. For more information, please see: www.ynu.ac.jp/english/About NTT DOCOMONTT DOCOMO, Japan's leading mobile operator with over 85 million subscriptions, is one of the world's foremost contributors to 3G, 4G and 5G mobile network technologies. Beyond core communications services, DOCOMO is challenging new frontiers in collaboration with a growing number of entities ("+d" partners), creating exciting and convenient value-added services that change the way people live and work. Under a medium-term plan toward 2020 and beyond, DOCOMO is pioneering a leading-edge 5G network to facilitate innovative services that will amaze and inspire customers beyond their expectations. www.docomo.ne.jp/english/.About DENGYODENGYO was founded to enrich the future through better use of radio waves. For decades, our pursuit of cutting-edge innovation has resulted in the development of wireless technology that meets the highest performance standards while consolidating space and equipment.New windowhttps://global.den-gyo.com/About FujitsuFujitsu's purpose is to make the world more sustainable by building trust in society through innovation. As the digital transformation partner of choice for customers in over 100 countries, our 124,000 employees work to resolve some of the greatest challenges facing humanity. Our range of services and solutions draw on five key technologies: Computing, Networks, AI, Data & Security, and Converging Technologies, which we bring together to deliver sustainability transformation. Fujitsu Limited (TSE:6702) reported consolidated revenues of 3.6 trillion yen (US$32 billion) for the fiscal year ended March 31, 2022 and remains the top digital services company in Japan by market share. Find out more: www.fujitsu.com. Copyright 2023 JCN Newswire. 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DOCOMO and YKK AP to Test Signal-permeable Windows Made with Aerogel for Easy Penetration by Radio Waves JCN Newswire

DOCOMO and YKK AP to Test Signal-permeable Windows Made with Aerogel for Easy Penetration by Radio Waves

January 30, 2023
TOKYO, Jan 30, 2023 - (JCN Newswire via SEAPRWire.com) - NTT DOCOMO, INC. announced today that in collaboration with YKK AP Inc. it has launched a demonstration test to verify the radio-wave penetration characteristics of signal-permeable windows made with a light, porous material called aerogel, aiming to improve indoor reception of external radio waves while maintaining the insulation benefits of windows.High-performance materials, multilayered window glass and Low-E glass are being used more widely to improve the insulation of homes and offices for energy efficiency. As a consequence, however, it is becoming more difficult for high-frequency radio waves used by cellphones and other applications to reach indoor spaces. In response, DOCOMO and YKK AP are developing windows that allow radio waves to pass through easily while still maintaining high-performance thermal insulation. The plan is eventually to install such windows in the ceilings and walls of existing as well as new homes and offices.DOCOMO and YKK AP will now test a prototype window made with aerogel, a high-performance thermal-insulation gel-like material, to confirm its radio-wave penetration characteristics. Aerogel is known to have a dielectric constant close to that of air and allows radio waves to penetrate easily. The demonstration will enable DOCOMO to test materials, shapes and window structures that best allow radio waves to pass through.Going forward, DOCOMO will continue to work toward 5G Evolution & 6G by researching and developing technologies including windows easily penetrated by high-frequency millimeter and terahertz radio waves for high-quality indoor connectivity.The initiative will be introduced during "docomo Open House '23," which will be held online from Thursday, February 2 through the rest of the month. Please visit:www.docomo.ne.jp/english/corporate/technology/rd/openhouse/openhouse2023/About NTT DOCOMONTT DOCOMO, Japan's leading mobile operator with over 85 million subscriptions, is one of the world's foremost contributors to 3G, 4G and 5G mobile network technologies. Beyond core communications services, DOCOMO is challenging new frontiers in collaboration with a growing number of entities ("+d" partners), creating exciting and convenient value-added services that change the way people live and work. Under a medium-term plan toward 2020 and beyond, DOCOMO is pioneering a leading-edge 5G network to facilitate innovative services that will amaze and inspire customers beyond their expectations. www.docomo.ne.jp/english/. Copyright 2023 JCN Newswire. All rights reserved. (via SEAPRWire)
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NEC becomes First Vendor to be Awarded “Requirements Compliant Bronze Badge” for 5G Open RAN Radio Units in Latest Published TIP Requirements 2.1 JCN Newswire

NEC becomes First Vendor to be Awarded “Requirements Compliant Bronze Badge” for 5G Open RAN Radio Units in Latest Published TIP Requirements 2.1

October 27, 2022
TOKYO, Oct 27, 2022 - (JCN Newswire via SEAPRWire.com) - NEC Corporation (TSE: 6701) has been awarded a Bronze Badge from the Telecom Infra Project (TIP), this time for complying with the requirements for TIP's OpenRAN RU Technical Requirements Document 2.1.TIP is a global community of companies and organizations that work together to develop, test, and deploy open, disaggregated, and standards-based solutions that deliver the high-quality connectivity that the world needs - now and in the decades to come. This updated, comprehensive list of technical requirements for Open RAN is built on the valuable work from the operator signatories of the Open RAN MoU Group (European telecom operators Deutsche Telekom, Orange, Telefonica, TIM, and Vodafone) and others.NEC is an Open RAN market leader with its end-to-end Open 5G solutions, system integration capabilities, and deployments with its signature 5G radio offering. With this award, NEC demonstrates compliance with the TIP OpenRAN project group's recently approved R2.1 RU requirements for a further 12 5G radio units (RUs), which meet O-RAN standards. These TIP OpenRAN-compliant RU products are available for Single Band RRH and Dual and Triple Band RRH and can be deployed for use, particularly in dense urban environments which require high performance and high coverage.NEC is an active participant in several consortia looking to drive technology requirements and standards for Open RAN and is the first global 5G supplier to have live deployed 5G massive MIMO radio units that are OpenRAN compliant. TIP is comprised of hundreds of companies, including service providers, technology suppliers, systems integrators, and more, who collaborate to ensure the proliferation of open, disaggregated, and standards-based solutions to deliver global connectivity and fully realize the potential of a connected world.NEC was previously awarded its second TIP ribbon for complying with the requirements for TIP's OpenRAN RU Technical Requirements Document 2.0. for three of its 5G massive MIMO Open RAN Radio Units (i.e., MB5440, 5450, and 5460 units). The award of the third TIP ribbon showcases NEC's expanding offering of TIP OpenRAN-compliant products."NEC's contribution to the development of open standards for 5G is part of our commitment to the whole industry. The fact that many of the major wireless providers have chosen NEC over the last 18 months demonstrates that our contribution is clearly making a difference," said Alla Goldner, Director of Strategy Open Standards, NEC. "Our investment in Open RAN activities is an ongoing priority for us, as additionally illustrated by our Plugfest participation.""NEC is among the first Radio Unit manufacturers to have proven product compliance against TIP's OpenRAN RU Technical Requirements Document 2.1," said David Hutton, Chief Engineer, TIP. "The TIP community is driving the productization of Open RAN and we certainly welcome and encourage the level of engagement shown by NEC, and their contribution to shaping Open RAN innovation. We look forward to seeing more vendor solutions like these listed on TIP Exchange."About NEC CorporationNEC Corporation has established itself as a leader in the integration of IT and network technologies while promoting the brand statement of "Orchestrating a brighter world." NEC enables businesses and communities to adapt to rapid changes taking place in both society and the market as it provides for 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 www.nec.com. Copyright 2022 JCN Newswire. All rights reserved. (via SEAPRWire)
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Milestone of THz Communication JCN Newswire

Milestone of THz Communication

June 30, 2022
TOKYO, Jun 29, 2022 - (JCN Newswire via SEAPRWire.com) - Scientists from a project coordinated by Technische Universitat Braunschweig in Germany and Waseda University in Japan with ten other partners from five countries have succeeded for the first time worldwide in developing a bidirectional THz radio link that can be connected as a "backhaul" to the data network of mobile radio providers. This link achieved by the Horizon Europe-funded new windowThoR project, can realise high data rates and thus play an important role in the network infrastructure of the future. On 29 and 30 June, the THz radio link will be presented in a final workshop of the ThoR project. The Braunschweig radio relay link connects the Oker Tower with TU Braunschweig's IT Centre over a distance of 160 metres. Credits: Thomas Kürner/ TU BraunschweigFibre-optic cables are not always the best option when it comes to transmitting data. Especially in cities, it is often not possible to connect every base station of the mobile network by cable. Radio relay links provide an alternative solution. With the help of antennas mounted on roofs, they can bridge distances of up to one kilometre. This creates important backhaul connections between mobile radio cells and the nodes of the mobile radio network without the need for any road construction work. Until now, the high data rates produced by the 5G mobile communications standard, which will continue to increase in the future 6G standard, favoured a fibre-optic connection between stations to the data networks. The international ThoR project has now succeeded in developing a bidirectional terahertz radio link that can reliably transmit these high data volumes. The frequency range above 300 gigahertz is used for this as it offers enough spectrum for high data rates. The ThoR-backhaul link is the only one of its kind in the world to offer a bidirectional real data connection and connects TU Braunschweig's IT centre with the Oker high-rise building over a distance of 160 metres. It can transmit data rates of 2x20 Gbit/s net at a bandwidth of 2x8.64 GHz and is scalable over the bandwidth so that higher data rates can also be realised. Professor Thomas Kurner, coordinator of the European part of the project: "We have realised an application-oriented complete solution here, which can already be used as a backhaul link in the data network in the near future." In addition, as the first backhaul link of its kind, its functionality also complies with the IEEE 802.15.3 standard. The IEEE 802.15.3 standard was already developed in the run-up to the ThoR project and substantial research contributions were made by TU Braunschweig and several of the Japan-based partners. On 29 and 30 June, the final workshop of the ThoR project will take place in hybrid form. In addition to attending the workshop in person in the Aula of the Haus der Wissenschaft (Pockelstrabetae 11, 38106 Braunschweig), it will also be possible to participate online. The core of the workshop is the demonstration of the backhaul track with a tour of the developed THz hardware. Registration for the workshop is possible new windowonline. The ThoR project is funded by the EU through the Horizon 2020 research framework programme (Grant Agreement 814523) and by the National Institute of Information and Communications Technology in Japan with a total of three million euros. The project started on 1 July 2018 and will end on 30 June 2022. Partners of the ThoR project:TU Braunschweig (EU coordinator, Germany), Waseda University (Japanese coordinator, Japan), Chiba Institute of Technology (Japan), Gifu University (Japan), University of Stuttgart (Germany), Fraunhofer Institute for Applied Solid State Physics IAF (Germany), University of Lille-CNRS IEMN&PhLAM Laboratories (France), HRCP R&D Partnership (Japan), Vivid Components Ltd (UK), Siklu Communication Ltd (Israel), NEC Corporation (Japan) and Deutsche Telekom (Germany/Czech Republic). Further information can be found at: https://thorproject.eu/About NEC CorporationNEC Corporation has established itself as a leader in the integration of IT and network technologies while promoting the brand statement of "Orchestrating a brighter world." NEC enables businesses and communities to adapt to rapid changes taking place in both society and the market as it provides for 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. Copyright 2022 JCN Newswire. All rights reserved. (via SEAPRWire)
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