Vodafone has conducted its first test of the new 5G spectrum across an existing live network.
The test occurred shortly after Vodafone won 50 MHz of the 3.4 GHz spectrum in Ofcom's spectrum auction and has been hailed as a "major milestone in UK telecommunications".
Indeed, it marked the first time a 3.4G Hz radio frequency allocated for 5G has been used in the UK.
Nick Jeffery, Chief Executive of Vodafone UK, commented: "5G will improve the quality of our lives and transform how we work."
For instance, he said this "next generation technology" will enable medical services that could save lives, from remote surgery to remote care for the elderly.
Mr Jeffery also noted that 5G will enhance industrial applications, from automated systems to robotics, thereby helping manufacturers across the UK boost their productivity.
Furthermore, he said it will enable families to share their experiences with loved ones wherever they are, thanks to innovations like augmented reality.
"Today’s test is just the beginning," Mr Jeffery continued.
"We are now preparing our network for 5G while continuing to increase the capacity and extend the reach of our existing 4G network."
Vodafone, along with EE, Three and O2, collectively bid almost £1.4 billion in the principal stage of Ofcom's spectrum auction.
EE won 40 MHz of the 3.4 GHz spectrum at a cost of £302,592,000, while Three's parent company Hutchison 3G UK Limited won 20 MHz of the 3.4 GHz spectrum at a cost of £151,296,000.
Telefónica UK Limited secured all 40 MHz of the 2.3 GHz spectrum available for a cost of £205,896,000, along with 40 MHz of the 3.4 GHz spectrum at a cost of £317,720,000.
Finally, Vodafone won 50 MHz of the 3.4 GHz spectrum at a cost of £378,240,000.