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Old 26-07-2016, 08:13   #9
Ignitionnet
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Re: HFC: Delivering Gigabit Broadband

Quote:
Originally Posted by Kushan View Post
A lot of the literature I've read seems to indicate that the 3.1 rollout will come first, with a push for gigabit+ on the downstream, but after that the focus will be on symmetrical connections to bring upstream in line. That's a good 5 year+ plan, though.
Comcast are leading the way, and due to the hardware restrictions their product uses 24+ 6MHz DOCSIS 3.0 SC-QAMs and a single 3.1 96 MHz OFDM block downstream.

Upstream it uses the same 4 SC-QAM upstreams as DOCSIS 3.0.

This shouldn't be a shock to anyone, for example VM's DOCSIS 3.0 product used a single DOCSIS 1.1 upstream originally, no upstream bonding for a while.

Last edited by Ignitionnet; 26-07-2016 at 08:24. Reason: Got it right the first time.
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