Project pushes gigabit data rates over copper telephone lines

July 09, 2014 // By Jean-Pierre Joosting
The next milestone in the build-out of the broadband access network is called Fiber-To-The-Distribution Point (FTTdp).

This concept calls for running optical fiber to a distribution point that can be flexibly installed relatively close to the customer premise. The existing copper infrastructure is utilized to complete the access line to and within the building. To determine how 1 to 2 Gbit/s data rates can actually be achieved in such environments, researchers from Fraunhofer ESK will be working with Lantiq and InnoRoute GmbH until 2016 as part of the FlexDP research project.

Achieving high access data rates requires utilization of the higher frequency ranges on the phone lines. This is possible only if the copper line segment of the data transmission channel is relatively short. With this in mind, Fraunhofer ESK is analyzing the channel properties within these high frequency ranges as part of the FlexDP project. Lantiq and InnoRoute will use the results of this work to eventually develop a reverse powered, flexible distribution point installed closer to the customer premise. Through a combination of research, implementation and testing, the partners are laying the groundwork for the practical application of FTTdp.

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