RTT - provide RF engineering and radio technology support to the cellular radio industry, broadcasting, two way radio and satellite industry.

We provide RF consultancy support to operators and vendors, helping them to make faster and better decisions on radio frequency (RF) technology, engineering and infrastructure investment with a specific focus on 5G technologies.

5G Research from RTT

To be economically sustainable, 5G will need to go faster and further at lower cost using less power than present and future 4G LTE systems.

In terms of the physical layer, considerable research is being dedicated to massive MIMO systems implemented in TDD spectrum.

However it is hard to see how this approach can deliver significant  benefit over present and future Wi-Fi technologies.

5G will need to be capable of supporting high data rate high mobility users in wide area large radius cells with a dynamic range of the order of 100dB.

This can only be done economically by exploiting fractional beam width antennas deployed into FDD spectrum with channel bandwidth ratios that are efficient both in terms of RF efficiency and multiplexing gain

By default this requires 5G to be deployed into the centimetre band (channel bandwidths of 250 MHz) and millimetre bands (channel bandwidths of 500 MHz and 1 GHz).

Learn more about the influence these 5G technical requirements will have on the economics and relative value of future spectrum and band plan choices

Read about how vertical markets influence these choices by ordering a copy of the study on 5G Vertical Markets co-authored by Geoff Varrall and published by Policy Tracker.
Order via this link: www.policytracker.com/5G_report

Learn about the real life performance trade-offs between the metre band (300 MHz to 3 GHZ), centimetre band (3 GHz to 30 GHz) and millimetre band (30 to 300 GHz) by ordering a copy of Geoff’s new book published by Artech House, 5G Spectrum and Standards
and available to order via this link:  

Sign up to the Policy Tracker 5 day Training Course Understanding Modern Spectrum Management www.policytracker.com/training/understanding-modern-spectrum-management
at Harris Manchester College Oxford,  September 19 - 23 2016  including two ninety minute modules on satellite and 5G spectrum presented by Geoff onThursday September 22.

RTT Technology Topics

RTT Technology Topics reflect areas of research that we are presently working on.
We aim to introduce new terminology and new ideas to help inform present and future
technology, engineering, market and business decisions.

This month’s (September  2016) technology topic, 5G Channel Modelling highlights the channel modelling required to validate present 5G physical layer options  for wide area mobile connectivity.
On the RTT website there are over 200 topics ARCHIVED starting from August 1998. The archive provides a free valuable resource for researchers in the industry wishing to use past case study experience to validate technology, engineering, market and business decisions. 

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