Nokia has reported a breakthrough in the effort to meet surging data demand from consumers and businesses, showing it is possible to achieve 10 Gbps symmetrical data speeds using traditional Hybrid Fiber Coax (HFC) cable plant, the company said.
Using a prototype technology called XG-CABLE based on unique access technology innovations and applications developed by Nokia Bell Labs, the test demonstrates how existing cable systems can be used to deliver symmetrical ultra-broadband access services.
Achieving symmetrical services–where the network can simultaneously support 10 Gbps data speeds for both uploading and downloading content–is a breakthrough for the cable industry. With the need for high-speed upload services growing due to demand for HD video uploads, real-time gaming, live streaming video and virtual or augmented reality, Nokia Bell Labs started to explore the feasibility of delivering symmetrical service over HFC cable plants in 2014. Demonstrating for the first time that the concept is valid and achievable, the XG-CABLE test used point-to-point cable topologies to deliver 10 Gbps symmetric data speeds over coaxial cable using 1.2 Ghz of spectrum.
Still considered a proof of concept, XG-CABLE can easily integrate into the CableLabs new Full Duplex DOSCISÂ® 3.1 concept, which is focused on providing cable operators with technology innovations that can transform the industry. By leveraging the XG-CABLE technology, operators can effectively use existing HFC cables over the last 200 meters to provide upstream speeds never before achievable due to the limited spectrum available. This will enable operators to more effectively bring ultra-broadband services to consumer locations that were not physically or economically viable unless fiber was brought all the way to the residence. XG-CABLE will also provide operators with greater agility in how they use and manage their spectrum.
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