Keysight and partners make UK’s first 100 Gbps “6G” Sub-THz connection
Highlights:
- Data link made at speeds greater than 100 Gbps at a frequency of 300 GHz using both 32 and 64 quadrature amplitude modulation
- Achievement enabled by Keysight’s 6G sub-THz testbed platform
Keysight Technologies, Inc, in collaboration with National Physical Laboratory (NPL) and the University of Surrey, has made the first 6G connection at speeds greater than 100 gigabits per second (Gbps) over sub-terahertz (THz) frequencies in the U.K.
Future 6G use cases, such as augmented reality and autonomous vehicles, will require data throughput speeds from 100 Gbps to 1 terabit per second (Tbps). To achieve the extreme data speeds and low latencies required by these revolutionary use cases, the use of sub-THz frequencies is being explored. However, operations in sub-THz frequency bands introduce signal integrity and path loss challenges that can negatively impact performance.
Keysight, NPL, and the University of Surrey established the first sub-THz high throughput 6G testbed in the U.K. to address these challenges. Funded by the U.K. government for 6G research, NPL and Surrey scientists are using the testbed to study and characterize sub-THz signal performance to generate new techniques for optimizing data paths and calibration methodologies.
Located at NPL, this new 6G testbed achieved the U.K.’s first high-speed sub-THz data link. The demonstration was made at a frequency of 300 GHz using both 32 and 64 quadrature amplitude modulation (QAM). Built on Keysight’s 6G Sub-Terahertz R&D Testbed, the testbed uses the M8194A Arbitrary Waveform Generator (AWG) combined with Virginia Diodes Inc. (VDI) upconverters / downconverters to generate the signal and Keysight’s UXR0704A Infiniium multichannel high-performance 70 GHz oscilloscope to analyze the signal.
Keysight, NPL, and the University of Surrey will demonstrate the new 6G testbed at the Spring 2023 6G Symposium at the University of Surrey, April 24-26.
Irshaad Fatadin, Principal Scientist, National Physical Laboratory, said: “6G is a key focus for NPL and we are using our scientific and measurement capabilities to tackle the challenges of this new technology. Our partnership with Keysight will be a critical success factor in our 6G research work.”
Mosaab Abughalib, Senior Research Director and General Manager for Keysight’s Network Emulation Group, said: “Through this partnership we are bringing Keysight solutions and experts together with scientists from NPL and the University of Surrey to unlock the true potential of 6G.”
Resources:
- White paper: 6G: Going beyond 100Gbps to 1 Tbps
- Keysight 6G Sub-Terahertz R&D Testbed
- M8194A Arbitrary Waveform Generator (AWG)
- UXR0704A Infiniium UXR-Series Oscilloscope
About Keysight in 6G:
Keysight creates the runway that enables researchers to launch evolutionary and revolutionary technology platform solutions based on 5G-Advanced and 6G technologies. A cohesive set of design and development building blocks across multiple interconnected technology domains enables innovators to spark new insights. Keysight plays a pivotal role in bringing to life 6G use cases that have the potential to transform society, enhance human interactions, enable enterprises to achieve greater efficiencies, and accelerate life-changing innovations.
About Keysight Technologies:
At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we’re delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product lifecycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world.
Learn more at Keysight Newsroom and www.keysight.com.
References:
Enable-6G: Yet another 6G R&D effort spearheaded by Telefónica de España
Another Opinion on 6G:
6G is the upcoming sixth-generation cellular network technology that is currently in early development. One of the goals of 6G cellular technology is not just to deliver basic content faster to smartphones, like streaming video, but to create a cellular network capable of supporting real-time augmented reality, virtual reality, and a future Internet of Things (IoT) model where small smart devices are a ubiquitous presence in and outside of our homes.
When reading anything about 6G, especially the breathless and hype-laden announcements from telecommunications companies that emphasize how 6G will usher in the metaverse, a fusion of our physical and virtual lives, and so on, you should keep the “early” part of early development in mind.
Currently, there are no established 6G specifications or standards, let alone deployed 6G networks or devices. Even the most basic aspects of 6G development, like which specific frequencies the next generation cellular technology will rely on, are still being ironed out along with technical challenges like energy and heat dissipation demands of advanced 6G devices.
That said, we do have some idea what 6G will look like. Current cellular technology operates in the Megahertz (MHz) and the lower Gigahertz (GHz) frequency ranges. The portion of the radio spectrum under consideration and testing for 6G includes frequencies in the 30-300 Ghz range—also known as millimeter waves (mmWave) or Extremely High Frequency (EHF) radio—and the Terahertz (THz) frequency up to 3000 Ghz. The use of these frequencies will allow for data transmission well beyond the bandwidth capacity of current cellular technology.
In December of 2022, Qualcomm released a 6G development plan with 2030 as a projected rollout date for 6G tech. Ericsson’s 6G messaging echoes the early 2030s timeframe too, as do various interviews with telecom executives.
5G was first introduced in 2019. Four years later, there are still millions of cellular subscribers using 4G, and 5G is yet to have a fully realized coast-to-coast rollout. GSMA’s authoritative 2023 Mobile Economy report, for instance, indicates North American adoption rate of 5G is only 39%, with more than half of cellular subscribers still using 4G. By their projections, the North American 5G adoption rate will be 91% by 2030, meaning by the time 6G potentially arrives, there will still be 4G subscribers out there.
Given the current development timelines, you should expect a delivery arc similar to the 5G rollout. If you live in a major metropolitan area, there is a good chance you’ll be covered by early 6G networks around 2030. If you’re not in a major metropolitan area, it’s likely you’ll be waiting well into the 2030s for the 6G rollout.
So if we step away from the hype and look at the matter practically, it’s likely only a small percentage of people will be using 6G-based networks by 2030. But the bulk of North American subscribers, and certainly the majority of global subscribers, will still be on 5G networks.