BT trials new quantum radios

The receiver technology boasts significantly greater sensitivity than traditional radio equipment and has the potential to reduce mobile network energy consumption, enable IoT cost efficiencies and help to close the rural connectivity divide according to BT.

The receiver works by using a quantum effect called “electromagnetically induced transparency” to form a highly sensitive electric field detector. BT claims the trial represents the first time a digitally-encoded message has been received on a 3.6GHz (5G) carrier frequency.

Simple audio has previously been received using much higher frequencies but this trial is the first industrial demonstration using digital modulation within one of BT-owned EE’s main commercial 5G frequency ranges.

Howard Watson, chief technology officer of BT, said: “BT’s investment in cutting edge R&D plays a central role in ensuring the UK remains a network technology leader. Our programme has huge potential to boost the performance of our next generation EE network and deliver an even better service to our customers. Although it’s early days for the technology, we’re proud to be playing an instrumental role in developing cutting edge science”.