Alcatel-Lucent G.Fast Reach 1.3 Gbps over 70m of Copper

Alcatel-Lucent G.Fast Reach 1.3 Gbps over 70m of Copper

Alcatel-Lucent together with A1, the Austrian subsidiary of Telekom Austria Group, have shown on Tuesday that they manage to achieved 1Gbps broadband speed on copper telecom network.

“Telekom Austria Group’s A1 was an early adopter of Alcatel-Lucent’s VDSL2 vectoring because we understand the value of upgrading our existing copper infrastructure to give our customers the best possible broadband service,” said Hans Pichler, CTO at Telekom Austria Group.

The new technology developed by Alcatel-Lucent is called G.fast and is based on vectorization techniques at Bell Labs, used primarily for current VDSL2 networks. The new technology uses a wide band of frequencies to achieve very high speeds over very short distances, all using traditional copper cable.

The technology is designed to deliver speeds of 500 Mbps over distances of about 100 meters. In tests carried out in the laboratories of Alcatel-Lucent, they managed to achieve 1.3 Gbps over distances of 70 meters. The creators believe that it can be a great option for providers to complement fiber optic deployments.

They also state that the costs that occur in the final meters, when the fiber reaches households can be avoided using G.fast based solutions with existing copper telephone lines, and avoiding trenching in public or private areas to install new fiber. Currently it is estimated that two thirds of current subscribers have broadband DSL services (copper).

Vectoring technology from Bell Labs addresses one of the challenges related to the deployment of G.fast. In many real applications, as in the case of the fiber to the building, copper lines that serve different neighbors are packed together, this results in crosstalk between the different lines, reduce potential speed of data transmission . G.fast vectoring eliminates crosstalk, stabilizes the transmission quality and allows the technology to reach its full potential.

The biggest drawback is that the technology is not yet standardized G.fast and still take several years to be commercially available. Hans Pichler, technical director of Telekom Austria, said he was delighted with the possibilities offered G.fast to improve their existing fixed broadband networks.

Source: Alcatel-Lucent
Photo Credit: Alcatel-Lucent

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