Re: [STDS-802-3-EPOC] Downstream Electrical Output and Input Requirements for EPoC
Hi Joe,
The level range seems shifted low, considering there is a +6 dB
offset, for BW scaling, compared to the CM min input performance table.
Level Range (24 MHz min occupied BW)
-9 dBmV/24 MHz
-21 dBmV/24 MHz
Total Input Power
< 40 dBmV, 54 MHz – 1.794 GHz
** Assuming negligible power outside this range*
Constellation
CNR1,2 (dB)
Up to 1 GHz
CNR1,2 (dB)
1 GHz to 1.2 GHz
Min P6AVG dBmV
4096
41.0
41.5
-6
2048
37.0
37.5
-9
1024
34.0
34.0
-12
512
30.5
30.5
-12
256
27.0
27.0
-15
128
24.0
24.0
-15
64
21.0
21.0
-15
16
15.0
15.0
-15
Thanks,
Sridhar
On Wed, Oct 30, 2013 at 12:30 PM, Solomon, Joe <
Joe_Solomon@xxxxxxxxxxxxxxxxx> wrote:
> Colleagues,
>
>
>
> Using the recently published DOCSIS 3.1 PHY specification
> (CM-SP-PHYv3.1-I01-131029) as a guide, Saif Rahman and I have put together
> proposal text for the EPoC downstream electrical output/input requirements.
> Much of this content was contributed and reviewed in that forum by Tom
> Kolze. We reviewed these at a high level during the EPoC PHY Ad Hoc meeting
> today and intend to bring these to Dallas as a baseline proposal.
>
>
>
> Please find that document attached.
>
>
>
> I have added document comments that detail which sections of the D3.1 PHY
> specification the content is based upon and whether that content is new to
> EPoC (not yet covered by a technical motion) or if based on already
> motioned and accepted technical proposals. You will notice that some of the
> larger tables contain a mix of both.
>
>
>
> We are working on a similar document for the Upstream which we hope to
> have ready for a high level review for next week’s EPoC PHY Ad Hoc meeting.
>
>
>
> Please review and feel free to reply to the reflector with questions or
> comments.
>
>
>
> j
>
>
>
> *Joe Solomon*
>
> Comcast – T & P Access Technology
>
> 303-242-7037
>
> [image: cid:image001.png@01CDE9BB.95EA0330]
>
>
>
> ------------------------------
>
>
--
- Sridhar Ramesh
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