Re: [802.3_EPOC] Action items for September 2012 meeting
A minor correction...
Mid-split: the upstream/downstream frequency split is between 42 and 108 MHz North America or 65 and 108 MHz European systems
High-split: the upstream/downstream frequency split is above 108 MHz for both North America and European systems
Regarding high vs top split, I agree with option 2 removing it for now.
________________________________________
From: Salinger, Jorge [Jorge_Salinger@xxxxxxxxxxxxxxxxx]
Sent: Sunday, July 22, 2012 1:27 PM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_EPOC] Action items for September 2012 meeting
Marek,
I think I would correct the definitions of Mid- and High-split, as follows:
Mid split: an HFC network in which the split between the upstream and downstream occurs between 65 and 100 MHz
High split: an HFC network in which the split between the upstream and downstream occurs above 100 MHz
I still have some concern about a conflict between the definitions of High- and Top-split since they could overlap. Maybe we could solve it in one of two ways: 1. add something like "the upstream transmission occupies spectrum below the downstream" for low-, mid- and high-split definitions, or 2. Get rid of the top-split altogether since we won't be considering that option (as we discussed in the meeting in San Diego).
I wonder what others, especially my MSO/CL colleagues, think.
Thanks!
Jorge
----- Original Message -----
From: Salinger, Jorge [mailto:Jorge_Salinger@xxxxxxxxxxxxxxxxx]
Sent: Sunday, July 22, 2012 12:14 PM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
Subject: Re: [802.3_EPOC] Action items for September 2012 meeting
Marek,
To add to your list, here is a start for the definitions for the various
splits, and one additional definition (HFC):
HFC: a hybrid fiber-coax cable network, in which fiber is used to transmit
analog RF signals (note: this definition excludes the case where we have
digital return, but I think that's OK)
Low split: an HFC network in which the split between the upstream and
downstream occurs below 65 MHz
Mid split: an HFC network in which the split between the upstream and
downstream occurs below 100 MHz
High split: an HFC network in which the split between the upstream and
downstream occurs below 200 MHz
Top split: an HFC network in which the upstream is placed above the
downstream
Hope this helps.
Jorge
-----Original Message-----
From: Marek Hajduczenia <marek.hajduczenia@xxxxxx>
Reply-To: Marek Hajduczenia <marek.hajduczenia@xxxxxx>
Date: Thursday, July 19, 2012 3:48 PM
To: EPoC Study Group <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
Subject: [802.3_EPOC] Action items for September 2012 meeting
>Dear colleagues,
>
>Following the discussion in the morning, focused on the preparation for
>September 2012 meeting, I would like to start discussion on terminology
>for
>EPoC, as attached to this email. What I did so far, was to go through the
>contributions discussed so far, to collect the terms which were used most
>commonly in presentations and discussions, with the special focus on terms
>generating heated discussions (infamous PHY). The content is colour coded:
>
>- a term in green indicates that we have already a solid definition in
>802.3, which ought to be reused without changes
>- a term in yellow indicates a term which is specific to EPoC, and I felt
>sufficiently capable to propose the pass at the definition
>- a term in red indicates a wording which I collected from one of
>contributions, but it requires either further discussion, clarification or
>confirmation whether it is needed at all.
>
>In the first pass through the list, please indicate whether any critical
>terms are missing or unnecessary. My intent at this time is to collect a
>complete list of terms, before we plunge into producing missing
>definitions.
>Please keep all discussion on the reflector so that we do not talk past
>each
>other or repeat proposals. I will try to keep the list updated as
>frequently
>as needed.
>
>Given that definitions are critical for technical discussions on
>individual
>proposals, I'd suggest we complete the phase of collecting terms by the
>28th
>of July, at which time I will move to generating individual missing
>definitions.
>
>Regards
>
>Marek
>
>________________________________________________________________________
>
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