Re: [8023-10GEPON] Reminder to presenters and Time slot request
Dear Frank,
Though this is not about a naming topic, I have just looked through your
presentation material on power budgets, and feel impressive about it.
I have some comments on it, considering the recent discussions
among vendors here in Japan.
1. Sensitivity figures in the 10G sheets(pp.2,6-7)
I feel your sensitivity figures of PIN receivers, FEC improvements,
and EML ER are a little bit optimistic, compared with the figures
that summarizes Japanese vendor opinions.
I will present it in the upcoming meeting.
I also think we need to consider additional margins for WDM filter
insertion loss, burst-mode penalties, and dual-mode PMD deficit
into the receiver sensitivities as an OLT/ONU specs.
2. APD@ONU option(pp.7)
In the discussions in Japan, several vendors suggested APD receiver in ONU.
I suggest to still include this APD@ONUs option, not preventing the further
discussion of possible options toward the most practical and cost effective
solution.
Best regards,
Motoyuki Takizawa
On Tue, 6 Mar 2007 14:41:56 -0500
Frank Effenberger <feffenberger@HUAWEI.COM> wrote:
> Duane and Marek,
>
> I am very happy that you have looked into these editorial matters. Your
> plans seem very logical.
>
> Some musing on the issue of naming: In my presentation on power budgets, I
> give some consideration for names. The "X" in the previous PON optics was
> associated with the 8b10b coding. Since all the 10G proposals we are
> talking about so far (I think) use the 64b66b coding. Therefore, the
> correct letter to use is "R".
>
> The asymmetric case raises interesting questions regarding what to call it,
> since this case will use (I think) different data rates AND different coding
> in either direction. I think the simplest way to extend this would be to
> just put both designations into the name.
>
> So, the symmetric PONs would have the letter designation: PR, and the
> asymmetric PONs would be called: PRX (which has the added benefit of
> sounding vaguely sexy.)
>
> In the presentation, I tally up the port types, and end up with 12 (3 loss
> grades * 2 speed combinations * 2 ends). There are actually only 7 new
> power budgets (6 10G budgets, plus the 29dB upstream 1G budget).
>
> It is interesting to note that the 12 port types listed above imply the
> support of a single data rate in either direction. Actually, if we are
> truly rigorous, there may be additional OLT port types, because I think it
> is good if the OLT phy can support both 10G and 1G at the same time. I have
> revised my presentation (attached) to include the 'truth table' that
> considers all of these combinations.
>
> On the leading speed grade designation: we start with "1000BASE" and
> "10GBASE". If we just hybridize, we get the unwieldy "10G1000BASE" - that's
> no good. We could shorten to "10/1GBASE". Or, we could follow Glen's
> advice and say "11GBASE". Actually, both of these could be useful, because
> the 10/1 could be used for the asymmetric case, while 11 could be used for
> dual-support. I add these thoughts into the revision, as well.
>
> Of course, we can try to pare down all the combinations to a smaller set.
> Certainly, 27 port types (including the existing 1G PONs) is a lot.
>
> Sincerely,
> Frank Effenberger.
>
>
>
>
> -----Original Message-----
> From: Duane Remein [mailto:duane.remein@ALCATEL-LUCENT.COM]
> Sent: Monday, March 05, 2007 6:00 PM
> To: STDS-802-3-10GEPON@listserv.ieee.org
> Subject: [8023-10GEPON] Reminder to presenters and Time slot request
>
> All,
> Please remember that Glen is traveling and has asked me to upload
> presentations to the IEEE WEB site. So far I have 1 presentation from
> Peter Anslow, 5 from Frank E., 1 from Marek H. and 1 from Glen (along
> with the one from myself attached).
>
> Glen,
> Can I please get about 15 minutes to present the attached file on behalf
> of Marek and myself at the Orlando meeting? The presentation covers
> some preliminary logistics to help provide us with direction in
> preparing for Draft 1 editing tasks.
> Thanks
> Duane
>
--
Motoyuki Takizawa
Fujitsu Access Ltd. R&D Center