XG-CABLE, a breakthrough innovation from Nokia Bell Labs, gives cable and multiple system operators (MSO) the potential to provide 10 Gb/s symmetrical services over their existing hybrid fiber-coaxial networks. XG-CABLE effectively doubles the capacity of HFC networks by enabling full duplex transmission with extremely wideband echo cancellation (1.2 GHz) while eliminating the interference that once made full duplex impossible. This proof of concept technology could be made compatible with legacy DOCSIS networks and validates CableLabs® Full Duplex DOCSIS® 3.1 proposal. This is significant since it addresses upstream constraints that have long been the Achilles’ heel of DOCSIS technologies, just as cable operators face the challenge of growing demand for cloud services, HD video uploads, real-time gaming, live streaming video and virtual or augmented reality.