5G millimetre comms from Bristol University
The University of Bristol has developed millimetre wave (30-300GHz) data connections, expected to be used in 5G networks from 2020, with Bristol start-up Blu Wireless Technology (BWT).
Millimetre wave radios use much higher carrier frequencies than 4G or Wi-Fi, allowing higher data rates – the University is claiming data transmission 50 times faster than 2.4GHz Wi-Fi.
And at 60GHz there is significantly more unallocated spectrum.
“The challenge at 60GHz is how to overcome the additional signal losses. If transmit powers and antenna gains were equal, at 60GHz the received signal would be 1000x weaker than a Wi-Fi signal,” said the University.”
To address link losses, millimetre wave systems need electronically steered high gain antennas.
BWT and the University are to demonstrate their developments at the Small Cells World Summit in London this week (10-12 June).
Using ray tracing and a network simulator – combining channel models, antenna arrays, and beam tracking algorithms – the team dynamically determines user performance in a virtual network, and will show how beam steering supports point-to-point connections up to 400m.
For 5G mobile access, there will be a demonstration of multi-Gbit beam-forming and mobile tracking up to 100m from the base station – with beam-forming overcoming blocking by trees and buses.
“BWT has developed the Gbit digital baseband necessary for millimetre wave communications to enter the mass market,” said BWT CEO Henry Nurser, “At the Small Cell World Summit we’re presenting some of the details behind our systems, how these can be applied to solve the total cost of ownership problems associated with backhaul for small cells, and why Europe needs to re-think regulations for outdoor 60GHz networks.”
University and BWT developments that were supported through the West of England Local Enterprise Partnership Regional Growth Fund,
There is a mm wave Gbit comms video.