[opendtv] Re: Spectrum is too valuable

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
  • Date: Fri, 6 Nov 2015 02:55:23 +0000

Ron Economos wrote:

Why would the PON need to be restructured? DOCSIS 3.0 downstream is MPEG-2 TS.

I'm saying, if you have a local PON, as would be typical today, they dedicate,
say, 150 6-MHz channels to broadcast MPEG-TS linear streams. Including a lot of
duplication with SD and HD streams, not to mention any remaining analog. So
this approach takes up roughly 5.7 Gb/s of potential capacity that could have
gone to improving the downstream broadband service.

So sure, a PON can continue to send those broadcast streams, but doing so means
that increasing their broadband service will involve reducing the size of each
PON. Big labor-intensive task. If you can't assign those passively-split 6 MHz
channels to broadband service, it means you need to create smaller PONs, where
the fewer 6 MHz channels used for Internet broadband would be divvied among
fewer homes. Instead, repurposing the bandwidth decreases the amount of manual
labor involved, when upgrading broadband, because now you have a greater number
of passively-split 6 MHz channels to distribute to individual homes in the PON,
for broadband service.

That's the value of this spectrum. Even if it's not OTA spectrum, publicly
owned, the same considerations apply.

Bert



----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.

Other related posts:

  1. Home
  2. opendtv
  3. Archive
  4. 11-2015