Os transcribo un newsfeed que me ha llegado
Cablevision Systems Corp. is using out-of-band overlay technology from Narad Networks to deliver dedicated data services starting at 50 Mbps to commercial customers.
...(nota minibit: Narad es uno más de los varios proveedores que están terminando productos para reaprovechar mejor el espectro que existe dentro de las redes de cable)
....
Narad's overlay technology lives on the existing HFC plant, but taps into spectrum above 860 MHz and below 1.1 GHz. .....the Narad platform the MSO is deploying is capable of raising that figure to 100 Mbps...Narad said its architecture roadmap is built to eventually support symmetrical 1 Gbps and 10 Gbps services.
Because it's an overlay, the technology does not require Cablevision to touch plant that's already underground.
(esto es fundamental)
"This proves that our HFC networks, in addition to our pure fiber networks, have no inherent capacity limits for multiple levels of residential as well as commercial services, and can provide this very high level of service without the expense and time delay of network redesign or new construction," said Cablevision EVP of Technology and Engineering Wilt Hildenbrand, in a release.
...podeis leer el resto de la noticia en el link, y si usais google un poco con las palabras del título vereis que está referenciada en bastantes más webs.