Showing posts with label Japan. Show all posts
Showing posts with label Japan. Show all posts

Tuesday, April 20, 2021

Japan Network Access Point deploys Ciena's DCI platform

Japan Network Access Point (JPNAP) has deployed Ciena’s Waveserver Ai data center interconnect (DCI) platform to handle Internet traffic in bustling hubs such as Tokyo, Osaka, Fukuoka, and Sendai.


JPNAP is using Ciena’s Waveserver Ai compact DCI platform to provide 100GbE connectivity between data centers where JPNAP’ PoP exists. With this deployment, JPNAP has simplified its network through increased automation with Waveserver Ai’s integrated line system capability. This has allowed JPNAP to lower capital and operational expenditures while providing ample point-to-point DCI capacity up to 4 Tbps between locations.

“JPNAP’s deployment of Ciena satisfies not only the largest DCI requirements but also paves the way for higher capacities, including 800 Gb/s wavelengths with 400 GbE services,” said Mr. Kazuyasu Takahashi, Vice President and General Manager, Ciena Japan. “Ciena sets the standard for data center efficiency, further reinforcing the value of a network that can adapt to drive innovation.”


WARPSPACE targets optical relay satellites

WARPSPACE, a spin-out space startup from the University of Tsukuba, Japan, announced 400M JPY (US$3.6 million) in Series A funding for its development of an inter-satellite optical communication relay network service. The concept is to use small optical relay satellites in Low Earth Orbit. Communication to earth stations would also use lasers.

Investors include The Space Frontier Fund (operated by Sparks Innovation for Future Co., Ltd.) and KSK Angel Fund LLC, which is led by professional soccer player Keisuke Honda. 

Shinichiro KENGAKU, Space Frontier Fund, President of General Partner, states:  “We believe that the 2020s will be a decade in which the utilization of satellite data will solve various social issues on the earth. We look forward to the foresight of WARPSPACE, which aims to eliminate the communicational bottleneck that is a condition for realizing such a society. We hope that WARPSPACE will open up the very frontier of the Japanese NewSpace industry.”

https://warpspace.jp/

Monday, April 19, 2021

Fujitsu selects Keysight's 5G test tools for private 5G lab

Fujitsu has selected Keysight's 5G test tools to verify quality of a 5G wireless communications network deployed at its “Fujitsu Collaboration Lab” in Kawasaki, Japan.

The Fujitsu Collaboration Lab is a private 5G verification facility established in October 2020 to connect a wide range of devices from partner companies in private 5G deployments in Japan.

“Keysight’s Nemo test solution enables real-time performance measurement and visualization of networks in private 5G areas, enabling reliable 5G network operation,” said Takashi Kanda, Executive Director of 5G Vertical Service Office at Fujitsu. “Fujitsu will continue to cooperate with Keysight to accelerate efforts to optimize network operations and support customers' digital transformation.”

“We’re pleased to support Fujitsu with 5G test tools for validating private 5G networks,” said Petri Toljamo, vice president and general manager for Nemo wireless solutions at Keysight. “Keysight’s wireless network solutions provide Fujitsu with a connected end-to-end information flow, from collection of measurement data to post-processing and analysis.”

Fujitsu granted Japan's first Private 5G license

Fujitsu has been granted Japan's first private 5G radio station provisional license by the Kanto Bureau of Telecommunications. Fujitsu plans to establish a radio station emitting private 5G radio waves in order to verify private 5G network systems at its Shin-Kawasaki Technology Square office in Kawasaki, Japan. In the spring of this year, Fujitsu will also move to open a "FUJITSU Collaboration Lab," which will serve as a dedicated co-creation space...

Fujitsu launches first private 5G network in Japan

Fujitsu today was granted Japan's first commercial Private 5G radio station license from the Kanto Bureau of Telecommunications and will begin operating a Private 5G network at its Shin-Kawasaki Technology Square office. Fujitsu will use its private 5G network to support an AI-enhanced video security surveillance system that can identify suspicious behavior through motion analysis. The network will also be used for a 5G co-creation and collaboration...


Monday, March 22, 2021

NTT DOCOMO selects Samsung as 5G supplier

NTT DOCOMO has selected Samsung Electronics as a 5G network solution provider. Financial terms were not disclosed.

Samsung's range of solutions will include O-RAN-compliant solutions.


“As a leading mobile operator, our goal is to provide our customers the best possible services for creating innovative, fun and exciting experiences and finding solutions to social issues,” said Sadayuki Abeta, General Manager of the Radio Access Network Development Department at NTT DOCOMO. “We are excited to collaborate with Samsung for the next phase of 5G Open RAN and accelerate the expansion of our ‘Lightning Speed 5G’ coverage in the nation.”

“We are pleased to be part of DOCOMO’s 5G networks and look forward to continued collaboration in advancing 5G innovation for their customers,” said Satoshi Iwao, Vice President and Head of Network Division at Samsung Electronics Japan. “Our goal is to leverage Samsung’s technical leadership to bring the best network solutions to mobile operators around the world, so they can deliver the next generation of transformative 5G services and electrifying user experiences.”

Samsung wins huge 5G contract with Verizon

Samsung Electronics America has won a contract valued at approximately US$6.6 billion (7.9 trillion won) to supply network infrastructure to Verizon. The announcement was made in a financial disclosure posted by Samsung in Korea. The contract runs through 2025. The contract is likely the largest 5G infrastructure deal to date for Samsung and likely comes as a loss to one of Verizon's European suppliers. http://dart.fss.or.kr/dsaf001/main.do?rcpNo=20200907800091 Samsung...

Samsung claims biggest share of Korea's 5G rollout

Equipment from Samsung Electronics Co. represents the largest share the recent 5G network rollouts from all three mobile operates in Korea. Korean operators have been transmitting 5G signals in Seoul and metropolitan areas since December 1, 2018 using 5G base station radios and 5G core solutions from Samsung’s Networks Business unit. Specifically, Samsung has supplied 5G core solutions and more than 53,000 5G radio base stations to Korea’s three...

NEC and Samsung Electronics are close to announcing a strategic alliance in 5G base stations, according to numerous sources over the weekend. Samsung is already a key supplier of network infrastructure to KDDI.  An alliance with NEC could help open doors to NTT Docomo. KDDI and Samsung prove 5G mmWave works at 190 kmh Tuesday, September 12, 2017  5G, KDDI, Korea, MmWave, Samsung   KDDI and Samsung...


Sunday, March 21, 2021

Fire at Renesas' Naka semiconductor fab halts production of 300mm wafers

Renesas Electronics Corporation was struck by a fire in the N3 Building (300mm line) of its Naka Factory (located in Hitachinaka, Ibaraki Prefecture) on March 19, 2021 at 2:47am.

The fire was extinguished on the same day and there no casualties to the employees and no damages to the building. However, Renesas said there was some damage to some of the utility equipment, including its pure water supply, the air conditioning system, as well as to some of the manufacturing equipment. The burned area is approximately 600m2, which is around 5% of the 12,000m2 clean room area of the first floor N3 Building, and the burned manufacturing equipment was 11 units, which is around 2% of the manufacturing equipment of the N3 Building. 


Production at N3 Building (300mm wafers) has temporarily halted while the company cleans the interior of the clean room and procures replacements of the burned equipment.

Renesas aims to resume production within one month. The financial impact from halting the N3 Building production is approximately 17 billion yen per month. 

In a press conference, company officials extended their apologies for the occurrence of the fire, the circumstances and the causes, as well as the outlook going forward. 

"We would like to give our sincerest apologies to neighboring residents, customers, partner companies, relevant authorities and all those involved for the trouble the fire caused,” said Hidetoshi Shibata, President & CEO of Renesas. “In addition, we would like to express our gratitude for the fire department and those who partook in the extinguishing of the fire.”

The production at N2 Building (200mm line) and the WT Building (wafer testing) is operating as usual. 


Thursday, March 18, 2021

NEC qualifies subsea repeaters and cables for 24 fiber pairs

 NEC and its subsidiary OCC Corporation have completed full qualification of subsea repeaters and optical cable containing up to 24 fiber pairs (FPs) (48 fibers). The new qualification is a 50% improvement in fiber count over the 16 fiber pair systems generally available today. 

Only minor modifications were needed to NEC's existing repeater and cable designs. Keeping NEC's quadruple pump redundancy in the repeater (established more than 10 years ago) and maintaining OCC's outstanding cabling performance has resulted in cabled attenuations lower than 0.150dB/km. Low attenuation is critical to achieve large spectral efficiency as well as lower power consumption.

NEC said the qualification will allow for the construction of subsea telecom cables with superior traffic capacity while reducing the cost per bit of the wet plant. The development is fully in line with SDM (Space Division Multiplexing) system architectures. 

"As global demands for capacity and FP flexibility continue to soar, NEC is committed to helping our customers to build up their subsea networks with large spectral efficiency, lower power consumption and large-scale subsea connectivity," said Yoshihisa Inada, Deputy General Manager and Head of Subsea Technology Development at NEC's Submarine Network Division.  "We continue to evaluate multiple technical options to further increase capacity and reduce the cost/bit of the networks."

OCC's 24 fiber pair cable can be manufactured using a wide range of existing optical fibers, according to the needs of each new cable system. Each fiber can be visually identified using a field-proven combination of ring marking and conventional fiber coloring, first introduced in 2013. Furthermore, in OCC cable, the fiber's transmission performance is completely unaffected, either by the fiber marking or cabling processes.

"We have concluded that the use of our fibers in OCC's 24 pair cable results in a cabled attenuation matching the nominal value. We are confident that our ultra-low-loss fibers can contribute to achieve large capacity, high spectral efficiency and low power consumption in transoceanic networks," said Dr. Masashi Onishi, General Manager at Optical Fiber and Cable division of Sumitomo Electric Industries Ltd.

"To support growing bandwidth, next generation subsea systems will offer Petabit-scale transmission. To achieve the required performance, cabling processes must capture the advantaged optical attenuation and large effective area of our ultra-low-loss fibers. OCC's cabling process for 24 fiber pairs works with our high quality fiber to meet the challenge," said Dr. Bernhard Deutsch, VP & GM, Optical Fiber & Cable, Corning Incorporated.

NEC targets subsea cables to 24 fiber pairs and beyond

NEC and its subsidiary OCC Corporation completed full qualification of subsea repeaters and optical cable containing up to 20 fiber pairs (40 fibers). This represents a 25% improvement in fiber count over 16 fiber pair systems previously built by NEC. NEC said it achieved this milestone with only minor modifications to its proven repeater and cable designs. This was done by optimizing key repeater components, and by proving that its existing cable...

Monday, March 1, 2021

AWS launches Osaka Local Region, its 2nd in Japan

Amazon Web Services launched its second full region in Japan, the AWS Asia Pacific (Osaka) Region. The region is an expansion of the existing AWS Osaka Local Region, which opened to select customers in February 2018. The new region consists of three Availability Zones (AZs) and joins the existing 25 Availability Zones in eight AWS Regions across Asia Pacific in Beijing, Hong Kong, Mumbai, Ningxia, Seoul, Singapore, Sydney, and Tokyo. 


“We launched the AWS Osaka Local Region to help select customers run specific workloads in western Japan. Since then, customers have asked AWS to launch a second full region with multiple Availability Zones and broad service selection in the country, and today we're excited to deliver on those requests,” said Peter DeSantis, Senior Vice President of Global Infrastructure and Customer Support, AWS. “Together with the AWS Asia Pacific (Tokyo) Region, the AWS Asia Pacific (Osaka) Region provides customers with even lower latency to end users in Japan, as well as the ability to architect workloads across multiple Availability Zones and multiple regions in Japan for even greater fault tolerance, resiliency, and availability.”

Globally, AWS has 80 Availability Zones across 25 geographic regions, with plans to launch 15 more Availability Zones and five more AWS Regions in Australia, India, Indonesia, Spain, and Switzerland. 

https://aws.amazon.com/about-aws/global-infrastructure/.


Sunday, February 28, 2021

NTT develops quantum random number generator

Researchers at NTT have developed a quantum random number generator (QRNG) that exploits the probabilistic nature of quantum measurements to generate genuine random numbers. 

The breakthrough could be implemented as a server that repeatedly produces fixed blocks of fresh, certifiable, public random bits. Applications might include communication networks with high security enhanced by quantum technologies.

NTT said previous high-performance QRNGs require fully characterized quantum devices, which could be subject to security loopholes. Although there are QRNGs that are secure with realistic devices, they need to run for a long time to accumulate sufficient randomness. This results in high latency from the initial request to the delivery of the requested random bits. It is desirable for real-world applications to realize QRNGs of low latency, high rate and high security. In this work, by developing an efficient method for certifying randomness (a collaborative work with the researchers at the National Institute of Standards and Technology) and by measuring the arrival time of an optical pulse with time-bin encoding, NTT was able toshow that every 0.1 seconds a block of 8192 quantum-safe random bits can be generated, enabling low-latency high-rate performance. 

https://www.ntt.co.jp/news2021/2102e/210224b.html

Tuesday, February 23, 2021

Japan's MCTV to deploy Ciena’s 6500 platform

Matsusaka CATV (MCTV), a cable operator in Japan, will deploy Ciena's 6500 Coherent Optical Platform to transform its fiber-to-the-home (FTTH) infrastructure and deliver high-quality digital services across rural areas. Ciena’s 6500  will enable MCTV to expand its backhaul capacity from 10G to 400G and scale its network to support new user demands.


“Our vision is to contribute to the local community by delivering superior telecom and broadcast services and ensuring our customers in rural areas have access to exceptional connectivity,” said Toshiyuki Shiota, deputy director of technology department, MCTV. “Ciena’s WaveLogic coherent optical solutions will allow us to further satisfy the digital needs of our growing customer base and promote a more connected society.”

ICT Infrastructure service partner UNIADEX will provide configuration, construction, service and support for the deployment.


Monday, February 22, 2021

CommScope supplies 10G-EPON Remote OLT for Japan's J:COM

Jupiter Telecommunications (J:COM), Japan’s leading cable broadband and multi channels video provider, has selected CommScope's XE4202 10G-EPON Remote OLT fiber node module to deliver 10Gbps broadband to residential and business broadband customers in Japan’s highly-competitive Kansai region.

CommScope says the deployment of 10G EPON with Remote OLT allows J:COM to leverage its existing hybrid fiber coaxial (HFC) network and fiber nodes to offer 10G EPON which enables groundbreaking 10Gbps symmetrical speeds using CommScope’s NC4000 Optical Node and CH3000 Headend Optics Platform.

CommScope’s unique combination of headend, node, and optics solutions paves the way to further strengthen J:COM’s HFC and Fiber-to-the-Home (FTTH) networks. The capability to support 10G EPON along with fiber deep upgrades allows J:COM to take immediate advantage of broadband spectrum expansions, virtualized and distributed access architectures, and to reduce capital and operating expenditures. The remote OLT system will also enable the use of centralized network management that can be located in the data center.

“This milestone deployment highlights the strength of our partnership with J:COM as well as our focus on Japan as a priority growth market,” said Morgan Kurk, executive vice president, chief technology officer and segment leader, Broadband Networks at CommScope. “J:COM’s ‘network of the future’ showcases our portfolio’s versatility in facilitating the migration to FTTH, providing more network capacity and reliability for end users. Together, we’re delivering the fastest speeds and the most advanced broadband services for millions of consumers across Japan.”

“J:COM is offering the ‘J:COM NET Hikari 10G Course /Hikari 5G Course /Hikari 1G Course’ ultra-high speed data service to Kansai area to meet the growing needs in high-speed, large capacity communication due to video consumption and the growth of IoT in home devices,” said Shigenari Saito, managing corporate officer and GM of Technology Unit, J:COM. “Working with our trusted partner CommScope on delivering a high performance and high quality network, we aspire to continue to provide valued services that would resonate with our customers.”

Monday, February 8, 2021

Renesas to acquire Dialog for EUR 4.9B for mixed-signal ICs

Renesas Electronics agreed to acquire Dialog Semiconductor Plc for EUR 4.9 billion (approximately 615.7 billion yen). 

Dialog, which is based in Reading, UK, is provider of highly-integrated and power-efficient mixed-signal ICs used in IoT, consumer electronics and high-growth segments of automotive and industrial end-markets. Dialog brings a wide range of product offerings including battery and power management, power conversion, configurable mixed-signal (CMIC), LED drivers, custom mixed-signal ICs (ASICs), and automotive power management ICs (PMICs), wireless charging technology, and more. Dialog also offers broad and differentiated BLE, WiFi and audio system-on-chips (SoCs) that deliver advanced connectivity for a wide range of applications; from smart home/building automation, wearables, to connected medical. All these systems complement and expand Renesas’ leadership portfolio in delivering comprehensive solutions to improve performance and efficiency in high-computing electronic systems. Dialog was founded in 1981 and has 2,300 employees.

“The transaction we announced today represents our next important step in catapulting Renesas’ growth plan to achieve substantial strategic and financial benefits, following our previous acquisitions,” said Hidetoshi Shibata, President and CEO of Renesas. “Dialog has a strong culture of innovation along with excellent customer relationships and serves fast growing areas including IoT, industrial and automotive. By bringing Dialog’s talented team and expertise into Renesas, together, we will accelerate innovation for customers and create sustainable value for our shareholders.”

“For several years, we have successfully executed on a diversification strategy that positions Dialog for high-growth,” said Dr. Jalal Bagherli, CEO of Dialog. “We have built a strong foundation of high-performance analog and power efficient mixed-signal expertise, extended our product portfolio and applied our technologies into markets including 5G, wearables, automotive, smart home, connected medical and industrial IoT. This compelling platform – combined with Renesas’ leading embedded compute, analog and power portfolio – creates even greater growth opportunities in today’s increasingly connected world. The Dialog team is excited to join forces with Renesas. The combined company will be in an even stronger position to provide innovative products for these markets, building on Renesas’ extensive sales, distribution and customer support capabilities.”


https://www.renesas.com/br/en/document/ppt/renesas-and-dialog-zoom-webinar-presentation-material

Renesas to acquire Integrated Device Technology for $6.7 billion

Renesas Electronics Corporation of Japan has agreed to acquire Integrated Device Technology (IDT, NASDAQ: IDTI) for approximately US$6.7 billion (approximately 733.0 billion yen at an exchange rate of 110 yen to the dollar), combing two recognized leaders in embedded processors and analog mixed-signal semiconductors. IDT shares are to be acquired at a price of US$49.00 per share. IDT, which is based in San Jose, California, is a leading supplier...

Renesas Electronics Corporation agreed to acquire Intersil for US$22.50 per share in cash, representing an aggregate equity value of approximately US$3.2 billion (approximately 321.9 billion yen at an exchange rate of 100 yen to the dollar). Renesas supplies microcontroller (MCU) and system-on-chip (SoC) products and technologies.  Intersil specializes in power management and precision analog capabilities. The acquisition is also expected...

Saturday, February 6, 2021

Japanese researchers develop CMOS transceiver for 300 GHz

Researchers at the Tokyo Institute of Technology and NTT have developed a novel CMOS-based transceiver for wireless communications at the 300 GHz band -- the first wideband CMOS phased-array system to operate at such elevated frequencies.

NTT said the breakthrough opens possibilities "beyond 5G".

One of the key features of the proposed design is that it is bidirectional; a great portion of the circuit, including the mixer, antennas, and local oscillator, is shared between the receiver and the transmitter (Figure 2). This means the overall circuit complexity and the total circuit area required are much lower than in unidirectional implementations.

Another important aspect is the use of four antennas in a phased array configuration. Existing solutions for 300 GHz CMOS transmitters use a single radiating element, which limits the antenna gain and the system’s output power. An additional advantage is the beamforming capability of phased arrays, which allows the device to adjust the relative phases of the antenna signals to create a combined radiation pattern with custom directionality. The antennas used are stacked “Vivaldi antennas,” which can be etched directly onto PCBs, making them easy to fabricate.

The proposed transceiver uses a subharmonic mixer, which is compatible with a bidirectional operation and requires a local oscillator with a comparatively lower frequency. However, this type of mixing results in low output power, which led the team to resort to an old yet functional technique to boost it. Professor Kenichi Okada from Tokyo Tech, who led the study, explains: “Outphasing is a method generally used to improve the efficiency of power amplifiers by enabling their operation at output powers close to the point where they no longer behave linearly–that is, without distortion.

The design achieved maximum rates of 26 Gbaud for transmission and 18 Gbaud for reception.

https://www.ntt.co.jp/news2021/2102e/210205c.html

Sunday, January 24, 2021

NEC triples number of connections in distributed-MIMO

NEC demonstrated multiple highly stable simultaneous terminal connections and transmission capacity through distributed-MIMO in the 28 GHz millimeter-wave frequency band. 

The company says its demonstration, which was conducted in a real world office environment, achieved approximately 3 times the number of simultaneous connections and transmission

capacity compared to cases without distributed-MIMO in the 28 GHzfrequency band. Moreover, transmission deterioration from obstacles was also reduced.

Earlier this year, Japan began to commercially deploy 5G in the sub 6 frequency band and millimeter-wave frequency band, with the expectation of enhancing network performance to support 10 times more capacity than 4G, as well as higher throughput, lower latency, and multiple connections.

NEC has been a pioneer in digital beamforming technology and has commercialized Massive-MIMO in the sub 6 frequency band. Moreover, NEC has developed digital coordination technology among antenna elements distributed in the millimeter-wave frequency band and conducted verification activities to solve the problems of indoor mobile communications, such as shadowing and diffraction of propagation paths.

https://www.nec.com/en/press/202101/global_20210125_01.html

Wednesday, January 20, 2021

Arctic Connect cable to link Norway and Japan

A new Arctic Connect Submarine Cable (ACSC) project is being planned to connect Kirkenes, Norway and Tokyo, Japan, through the Arctic Ocean and Northern Pacific Ocean.  The system will have its European cable landing stations in Northern Norway and Finland, with connections further southwards through Finland, Norway, Sweden, and Denmark extending to the rest of Europe. The cable system has options for additional landings in Japan and in North America. 

The two leading partners behin ACSC are the Cinia Alliance, headed by Cinia Oy from Finland, and Russia's MegaFon. The projected time frame for completion is 2023/2024. 

NORDUnet, on behalf of the five national research and education networks in the Nordic countries, have signed a Letter of Intent with Cinia, expressing interest in a dedicated fiber pair on ACSC for research and education. The Letter of Intent with NORDUnet for a dedicated fiber pair in the Arctic Connect Submarine Cable System was announced at the virtual global telecom conference PTC’21. Arctic Connect R&E will be among the first intercontinental fiber pairs in history owned and managed by the research and education communities.

“We are pleased to welcome the international research and education community, headed by NORDUnet, to leverage the benefits obtainable from the unique Arctic Connect opportunity.  As an engine customer with a highly positive boost to the Arctic Connect project, the R&E networks are signaling the importance of global digital infrastructure enabling new routes, additional capacity and increased diversity” says Mr. Ari-Jussi Knaapila, the CEO of Cinia Oy.

“The Nordics are in a unique position to pioneer a fiber pair for Nordic and European Research and Education, on a completely new route. This project, once realized, will enhance the collaboration landscape between R&E partners in The Nordics, Europe, and Japan. In addition, it will boost Nordic development and significantly enhance European digital sovereignty,” says NORDUnet CEO RenĂ© Buch.

https://www.cinia.fi/en/archive/arctic-gateway-for-research-education.html

Monday, December 14, 2020

NEC spins out NanoBridge Semiconductor

 NanoBridge Semiconductor, a start-up based in Tsukuba, Japan, issued series A preferred stock to Japan Industrial Partners, Inc., NEC Corporation (NEC; TSE: 6701), and other companies to raise approximately 130 million yen.

NanoBridge was established by NEC researchers in September 2019 to commercialize a technology to control the creation or destruction of nanometer sized metal bridges in a solid electrolyte through the application of voltage, thereby realizing on and off-switch status.  NanoBridge does not require power to maintain an on or off status, and is highly resistant to both radiation and extreme temperatures. NEC has transferred related intellectual property to the new spin-out company.

Potential applications for the nanobridge technology include FPGAs and memories that repeatedly rewrite circuits. 

"The discovery of the atomic switch, based on the movement of atoms rather than electrons, was a major breakthrough in basic science," said Richard E. Dyck, Director, Japan Industrial Partners, Inc. "The team at NanoBridge, after two decades of skilled and focused engineering, has transformed this breakthrough into the realm of practical application. It is exciting to see the NanoBridge atomic switch can now be manufactured economically and in volume, on standard production equipment."

https://nanobridgesemi.com/

Sunday, December 13, 2020

DOCOMO activates 5G sub-6 GHz carrier aggregation for 4.2 Gbps

NTT DOCOMO, in partnership with Qualcomm, activated the first commercial 5G sub-6 GHz carrier aggregation (sub6-CA) service in Japan. The service combines a 100 MHz carrier in band n78 and a 100 MHz carrier in band n79 to boost 5G performance and network capacity using DOCOMO's diverse spectrum assets.

Using DOCOMO's new 5G network and select devices powered by the Qualcomm® SnapdragonTM 865 Mobile Platform with the Snapdragon X55 5G Modem-RF System, customers can now enjoy mobile download speeds of up to 4.2 Gbps - the fastest speeds available in Japan. 

"It is a pleasure to continue our work with DOCOMO to advance and accelerate 5G technology throughout Japan," said Durga Malladi, senior vice president and general manager, 4G/5G, Qualcomm Technologies, Inc. "By providing access to breakthrough technologies like 5G carrier aggregation, we are enabling consumers and companies throughout Japan to access faster connectivity, enhanced capacity and better reliability."

"In collaboration with Qualcomm Technologies, we are pleased to begin delivering this advanced and groundbreaking mobile technology to our customers nationwide," said Naoki Tani, Executive Vice President and Chief Technology Officer, NTT DOCOMO. "DOCOMO subscribers can now enjoy superior 5G service together with exciting mobile experiences. Moreover, by establishing a new standard of possibility for the industry, we are proud to help initiate a new era of connectivity in Japan."

Sunday, November 22, 2020

NEC enters strategic pact with AWS


NEC Corporation has entered into a strategic collaboration agreement with AWS, making it the first Japanese company to do so.

With the support of the AWS Professional Services team (new windowProServe), NEC will develop a framework of ready-to-deliver cloud services, including migration, integration, consulting and more, to support the acceleration of digital transformation among government and enterprises.

NEC will provide managed services optimized for multiple industry sectors to support AWS customers that require industry-specific regulations, such as government agencies, the financial sector, and healthcare. 


"NEC is pleased to be the first Japanese company to start a strategic collaboration with AWS. The combination of AWS's global know-how with NEC's experience will enable us to provide safe and secure cloud services to government and enterprise customers who are advancing the digital shift of large-scale mission-critical systems," stated Toshifumi Yoshizaki, Senior Vice President at NEC Corporation.

Monday, November 16, 2020

NTT Com to deploy 800G DCI with Ciena

NTT Communications (NTT Com) will deploy a single-wave 800G solution from Ciena for Data Center Interconnect (DCI) in Japan. 

The upgraded network will use Ciena’s WaveLogic 5 Extreme optical platform to support up to 33.6Tbps between data centers in a metro area. 

“Since its inception, NTT Com has continued to take on the challenges of the Internet, delivering value in terms of convenience, efficiency and security through connectivity. By upgrading to a high-quality, reliable 800G ultra high-capacity DCI network, we aim to enable our customers to achieve an even more dynamic digital experience and robust business results," said Junichi Iimuro, Vice President of Infrastructure Design Department, Platform Services Division, NTT Com.

Earlier this year, Ciena joined the Innovative Optical and Wireless Network Global Forum (IOWN GF) co-founded by NTT, Intel Corporation and Sony Corporation to define the next generation communications infrastructure in Japan and help create a smarter world for people around the globe.

Sunday, November 15, 2020

NTT researchers streamline quantum calculations with ZX-Calculus

Researchers at NTT are pursuing a novel method to reduce the resources associated with large-scale fault-tolerant quantum circuits by employing ZX-calculus.

Currently, a fault-tolerant quantum circuit for a given computation requires a huge amount of resources, both in terms of qubits and computational time. The researchers at NTT have found an efficient method to compress such circuits with the purpose of decreasing their hardware demands. They use ZX-Calculus as an intermediate language to reduce both the number of qubits and time required to perform such computation in many different circuits. 

A paper on the topic discusses an improvement of a 40% compression rate with respect to previous reductions, yielding compression rates higher than 70% compared to the initial circuit. The methodology proposed in this work promises to open new venues of research in large-scale quantum computing and bring quantum computation closer to reality by relaxing its hardware demands.

https://www.ntt.co.jp/news2020/2011e/201112a.html


Sunday, October 25, 2020

NTT develops world’s fastest directly modulated laser

 Researchers at NTT have developed the world's fastest directly modulated laser with a 3-dB bandwidth exceeding 100 GHz and capable of transmitting at 256 Gbps over a distance of 2 km.

The research was carried out in collaboration with Professor Fumio Koyama at the Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology.


NTT researchers developed a membrane laser on a silicon (Si) substrate with a thermal oxide film (SiO2). The company says membrane lasers have a large optical confinement factor in the active region and are compact, making it possible to realize directly modulated lasers with low power consumption. On the other hand, since the device is fabricated on a low-thermal-conductivity SiO2 layer, the temperature increase in the active layer due to current injection is large, and even if the current is increased, the relaxation oscillation frequency saturates at about 20 GHz due to saturation of the differential gain.

To suppress the increase in the active region temperature, we fabricated an indium-phosphorus (InP) based membrane laser on a silicon carbide (SiC) substrate (Fig. 3), which has a thermal conductivity approximately 500 times higher than that of SiO2. Since SiC has a lower refractive index than InP, the optical confinement factor is almost the same as that of the device on SiO2. The device was fabricated by direct bonding with ultrathin (40 nanometers) SiO2 between the InP and SiC substrate. 

Assuming a 100-mW heat source, the temperature increase in the active region of a membrane laser with an active layer length of 50 micrometers was significantly reduced from 130.9 to 16.8℃ when the SiO2 thickness was reduced from 2 micrometers to 40 nanometers.

https://www.ntt.co.jp/news2020/2010e/201020a.html