Showing posts with label 6G. Show all posts
Showing posts with label 6G. Show all posts

Wednesday, November 6, 2019

German researchers investigate THz frequencies for 6G

Researchers at Rohde & Schwarz, the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, HHI and the Fraunhofer Institute for Applied Solid State Physics IAF are testing the terahertz (THz) frequency band for possible use in the 6th generation wireless mobile communication (6G).

The collaboration has resulted in a wireless transmit and receive system operating between 270 and 320 GHz, with further frequency extensions for potential 6G bands already in preparation. Wide contiguous frequency blocks can only be found at sub-THz and THz bands, i.e. in the frequency range above 100 GHz.

Dr. Michael Schlechtweg, Head of Business Unit High Frequency Electronics at Fraunhofer IAF, said, "As one of the first global providers of chipsets and electronic components capable of reaching already now the high frequencies required by 6G, we are collaborating with valued partner Rohde & Schwarz at the very cutting edge of technology. IAF appreciates the mutually highly beneficial cooperation and is happy to continue exploring new innovations with Rohde & Schwarz."

https://www.rohde-schwarz.com/us/about/news-press/all-news/rohde-schwarz-together-with-fraunhofer-institutes-hhi-and-iaf-join-forces-in-researching-6g-at-thz-frequencies-press-release-detailpage_229356-714688.html

Monday, August 19, 2019

Keysight joins 6G Flagship Program

Keysight Technologies has joined the multi-party 6G Flagship Program, an initiative supported by the Academy of Finland and led by the University of Oulu, Finland.

The parties envision that next generation beyond 5G  will leverage spectrum above millimeter waves called terahertz waves, from 300 GHz to 3 THz, enabling data rates of up to one terabit per second and ultra-low latencies.

Keysight said its technical expertise and solutions across these frequency bands, as well as in high-speed digital technologies, cybersecurity, device characterization, and network test, will accelerate research in all four strategic areas of the program: wireless connectivity, distributed intelligent wireless computing, device and circuit technologies, and vertical applications and services.

“We’re excited to join the 6G Flagship Program as one of its founding members to begin groundbreaking 6G research,” said Satish Dhanasekaran, senior vice president of Keysight and president of Keysight’s Communications Solutions Group. “The program signals the start of a new era of wireless technology that will push the boundaries of high-speed and high-bandwidth applications. As the only test and measurement provider invited to take part of the program, Keysight is showcasing the unique role we play in solving design challenges ahead of a technology wave.”

“We’re excited to continue our close collaboration with Keysight to establish the world’s first 6G multi-disciplinary research initiative with broad support in both industry and academia,” said Matti Latva-aho Academy Professor, Director of the 6G Flagship Program at the Centre for Wireless Communications (CWC), University of Oulu.

https://www.keysight.com/us/en/solutions/5g.html
https://www.oulu.fi/6gflagship/

Sunday, June 17, 2018

NTT and Tokyo Institute of Tech achieve 100 Gbps using terahertz band

NTT and Tokyo Institute of Technology have jointly developed an ultra high-speed IC for wireless front-end that operates on a terahertz frequency band, and in the 300 GHz band they have achieved a record 100 Gbps wireless transmission data rate.

The researchers implemented a mixer circuit that applied a unique proprietary high isolation design technology with an Indium phosphide high electron mobility transistor (InP-HEMT). NTT said this process enlarged the transmission bandwidth, which is a problem in the conventional 300 GHz band wireless front end. It also improved the signal-to-noise ratio (SNR). In addition, using this we realized a 300 GHz band wireless front-end module, and we achieved wireless transmission of 100 Gbps (gigabits per second).

NTT said future work will extend to multiple carriers by making use of the wide frequency band of 300 GHz band, and using spatial multiplexing technology such as MIMO and OAM. The researchers hope to produce an ultra high-speed IC that enables wireless transmission of 400 Gbos.

http://www.ntt.co.jp/news2018/1806e/180611a.html


Thursday, May 17, 2018

NTT employs Orbital Angular Momentum multiplexing for 100G wireless

NTT successfully demonstrated the first use of Orbital Angular Momentum (OAM) multiplexing to achieve 100 Gbps wireless transmission.

The laboratory tests combined OAM multiplexing with Multiple-Input Multiple-Output (MIMO) technology and carried the signals a distance of 10m.

NTT said a key feature of OAM is that electromagnetic waves can be superposed and separated because phase rotation occurs on the vertical plane in the propagation direction.  An electromagnetic wave with phase rotation cannot be received without a receiver having the same number of phase rotations at the time of transmission. NTT developed a transceiver operating in the 28 GHz band capable of OAM transmission. NTT also developed signal processing technology capable of handling 11 data signals simultaneously each at a bit rate of 7.2 to 10.8 Gbps, thereby achieving large-capacity wireless transmission at a total bit rate of 100 Gbps.

NTT believes the technology holds promise for achieving large-capacity wireless transmission at a level about 100 times that of LTE and Wi-Fi and about 5 times that of 5G.

http://www.ntt.co.jp/news2018/1805e/180515a.html

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