Deutsche Telekom partners with Adtran to advance ultra broadband

By:
Natalie Bannerman
Published on:

G.fast lab trials by Adtran and Deutsche Telekom at 212MHz said to be first step in deployment of ultra-fast and gigabit broadband services

Adtran has announced the lab testing of G.fast standard at 212MHz and coordinated dynamic time allocation (cDTA) with Deutsche Telekom.

Using fibre-to-the-building models, Deutsche Telekom is able to assess these ultra-broadband technologies using existing cable infrastructure within the home, eliminating the need for full fibre-to-the-home (FTTH) for some years. It also means that it is quick to deploy with the minimum amount of disruption possible. 

The 212MHz G.fast standard doubles the amount of usable spectrum, allowing service providers to offer gigabit rates over a single copper pair, mirroring fibre-like service delivery. It also differs from cable systems in that the bandwidth of G.fast is dedicated and readily available for each customer. The companies also say that the low price for customers means that this innovation is in line with European Commission’s Gigabit Society goals.

Utilising the first commercially available 212MHz DPU, the tests also showed the second phase of dynamic time allocation (DTA). Coordinated DTA (cDTA) improves G.fast's upstream performance by four to five times. In real time it balances the upstream and downstream capacity to match residential traffic patterns, says Adtran. As it can be applied to existing phone wiring, its covers nearly all residential and commercial premises. 

“Operators in highly competitive, dense urban or urban environments are challenged to extend gigabit services due to the time and cost that can be associated with pure play FTTH techniques. With G.fast innovation, operators, such as DT, can significantly accelerate Gigabit Society goals by launching gigabit services over their existing infrastructure dramatically reducing subscriber disruption,” said Jay Wilson, senior vice president at Adtran.