Nov 20, 2020

BT to trial and develop 5G quantum security

Joanna England
3 min
The UK’s leading telecommunications and network provider has joined forces with UK tech startups to research 5G network security
The UK’s leading telecommunications and network provider has joined forces with UK tech startups to research 5G network security...

British telecoms giant, BT is collaborating with leading research and technology organisations and as part of a world-first trial on quantum-secured communications for 5G and connected cars.

The resulting innovations are expected to drive forward the developments in quantum computing. Classical computing architectures save information in binary, but quantum computing uses subatomic particles’ ability to exist in multiple states at the same time. Therefore, quantum computers can store considerably more data and process issues much more quickly.

The AIRQKD trial will use BT’s expertise in constructing quantum-secure networks using QKD (Quantum Key Distribution – an “unhackable” technique for sharing encryption ‘keys’ between locations using a stream of single photons) with other new techniques for applying quantum security to mobile devices, developed by UK start-ups Nu Quantum, Angoka and Duality.

Other partners include Belfast-based Angoka, Bristol’s Duality Quantum Photonics and Arqit.

The 36-month-long trial will cost £7.7mn, with funding allocated by the Quantum Technologies Challenge, led by UK Research and Innovation. The initiative will create a world-first by combining Quantum Key Distribution over fixed fibre and free-space networks (point-to-point laser connections between cell sites), with quantum-enhanced security chips in mobile devices.

When combined, these technologies will be used to deliver an ultra-secure link between connected 5G towers and mobile devices, as well as to connected cars.

Dr Carmen Palacios Berraquero, co-founder and CEO of Nu Quantum believes the trial will produce ground-breaking results. She said, “We are basically creating the architecture for a whole new quantum-telecommunication industry, with a supply chain running from component manufacture through to end user. We have the unique ability to use the smallest packets of light, making the most of quantum mechanics and the security advantage it can give us. This three-year partnership with BT and others across the UK is an important step taking quantum out of the lab and into our networks.”

Secure 5G

BT’s current fibre-based testbed for QKD runs between Cambridge and the BT Labs at Adastral Park, Suffolk. The trial will pave the way for the development of a wide range of quantum-secured use-cases, for applications where ultra-security of data transfer is especially important.

Cambridge-based Nu Quantum, one of the UK’s newest quantum technology start-ups, will be the provider of quantum components: small modules capable of manipulating the faintest light signals (single photons of light) to generate and communicate absolutely secure quantum encryption keys.

World-leading technology

The trial will say, experts, confirm the UK's position at the forefront of quantum-based security technology. Professor Andrew Lord, BT’s head of optical network research, commented, “The UK has firmly established itself as a global leader in quantum-based network security. With the AIRQKD trial, we’re delighted to be taking this to the next level and combining multiple quantum technologies from innovative UK start-ups to build the world’s most secure fixed-mobile communications link. Connected cars are only one of the possible range of applications that will benefit from such ultra-secure connectivity in the future.”

The project will also be commercially beneficial according to Roger McKinlay, Challenge Director for the UK Quantum Technologies Challenge. He said, “This investment is part of a wider package delivered by The National Quantum Technologies Programme, which is set to make a £1bn investment over its life-time.”

McKinlay added, “This is ground-breaking technology but also commercially important, the close collaboration between the parties accelerating the establishment of a UK supply chain.”

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Jul 22, 2021

Verizon’s 5G adoption rises as Q2 success hits record high

3 min
Verizon's increased 5G adoption has led to the company’s highest Q2 performance with total consumer revenue 6.7% higher than the second quarter of 2019

Verizon has reported record success in the second quarter of 2021 caused by an increase in the adoption of its 5G phone service, customer and sequential wireless service revenue growth, and network reliability. The company revised its revenue and adjusted EPS guidance upward for the full year as a result. 

Hans Vestberg, Chairman and CEO of Verizon, said: “We are executing on our multipurpose network strategy and producing positive results in each of our five growth vectors, recording strong second-quarter results. With more connections on our network than anyone else, our already excellent network performance improved in the quarter and was recognized by RootMetrics as the best overall network performance for the 16th time in a row. We are also expanding our 5G Ultra-Wideband and 5G Home markets”. 

He added that that the company “is excited about its momentum leading into the second half of the year”, and that it is “on track” to close the Tracfone and Verizon Media transactions. 

Verizon’s Q2 2021 highlights 


  • US$1.40 in earnings per share (EPS); adjusted EPS*, excluding special items, of US$1.37.
  • Operating revenue of US$33.8bn, a result of strong sequential wireless revenue growth.
  • Net income of US$5.9bn and adjusted EBITDA* of US$12.2bn.


Total Wireless:

  • Total wireless service revenue of US$16.9bn, a 5.9% increase year over year, and a 4.0 percent increase from second-quarter 2019.
  • Total retail postpaid churn of 0.94 percent, and retail postpaid phone churn of 0.72 percent.
  • 528,000 retail postpaid net additions, including 275,000 phone net additions, resulting in 121.3mn total retail connections.



  • Total revenue of US$23.5 bn, an increase of 11.2% year over year, and an increase of 6.7% from second-quarter 2019.
  • Total retail postpaid churn of 0.83%, and retail postpaid phone churn of 0.65 percent, a record-low retail postpaid phone churn outside of second-quarter 2020 and third-quarter 2020, which were heavily impacted by the COVID-19 pandemic.
  • 350,000 retail postpaid net additions, including 197,000 phone net additions, driving 5G-phone adoption to approximately 20% of Consumer wireless phone customers and step-ups to premium unlimited plans.
  • 92,000 Consumer Fios Internet net additions. The company's trailing 12-month total Fios Internet net addition performance is the highest since 2015.



  • Total revenue of US$7.8bn, an increase of 3.7% year over year, and relatively flat from second-quarter 2019.
  • Total retail postpaid churn of 1.30%, and retail postpaid phone churn of 1.07%.
  • 178,000 retail postpaid net additions, including 78,000 phone net additions.


“Second quarter results were exceptional, both financially and operationally,” said Verizon Chief Financial Officer Matt Ellis. “Our strong first-half performance and the momentum in our business gives us the confidence to raise our total wireless service revenue growth guidance to between 3.5% and 4%, an update from prior guidance for 2021 total wireless service revenue growth of at least 3%. We are also raising our adjusted EPS guidance* to the range of US$5.25 to US$5.35, an update from prior guidance for 2021 adjusted EPS* of US$5.00 to US$5.15”.

Also in Q2, Verizon came to an agreement with Apollo funds to sell Verizon Media, the expected close date being in the second half of 2021. Following this, the Verizon Media business classified certain assets as “Held for Sale”, which the company no longer depreciated or paid off. According to Verizon, this led to a partial quarter benefit of three cents per share in Q2, which will continue as a benefit until the deal is closed.


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