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Re: [802.3_EPOC] 答复: [802.3_EPOC] Study Group Questions



I am in Beijing today. Let me check with the SARFT people about releasing the document in one language or the other.

Alex

From: Matthew Schmitt <m.schmitt@xxxxxxxxxxxxx>
Reply-To: Matthew Schmitt <m.schmitt@xxxxxxxxxxxxx>
Date: Tue, 13 Dec 2011 09:40:10 -0700
To: <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>
Subject: Re: [802.3_EPOC] 答复: [802.3_EPOC] Study Group Questions

If the document is publicly available, then I'd assume that it's okay to share in any language. If it's not a publicly available document, and is only available under certain terms and conditions, then you'll need to check with the originator of the document. 

Matt

On Dec 13, 2011, at 12:21 AM, "胡保民" <hubaomin@xxxxxxxxxxx> wrote:

Hi Hesham,

 

I am not from China SARFT, so I can’t answer you. But for my  personal opinion, maybe there is no problem. It’s just requirement whitepaper, not detail implement.

 

Best Regards,

 

Hu Baomin

12/13/2011

 

发件人: Hesham ElBakoury [mailto:Hesham.ElBakoury@xxxxxxxxxx]
发送时间: 20111213 15:09
收件人: 胡保民; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
主题: RE: [802.3_EPOC] Study Group Questions

 

Hi Hu,

 

If I get the English version, can I share it with EPoC group ?

 

Hesham

 

From: 胡保民 [mailto:hubaomin@xxxxxxxxxxx]
Sent: Monday, December 12, 2011 11:06 PM
To: Hesham ElBakoury; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject:
答复: [802.3_EPOC] Study Group Questions

 

Hi Hesham,

 

Sorry, I haven’t English version.  I think Huawei must have the document. Maybe you can get the English version inside Huawei.

 

Best Regards,

 

胡保民

Hu Baomin

12/13/2011

--------------------------------

技术总监

Chief Technical Officer

武汉长光科技有限公司

Wuhan Yangtze Optical Technologies Co.,Ltd.

湖北省武汉市关山二路4号,430073.

4# Guanshan Er Rd., Wuhan, Hubei, China, 430073

Tel: 027-67887302

Fax: 027-67887678

Web: www.yotc.com.cn

<image001.jpg>

 

发件人: Hesham ElBakoury [mailto:Hesham.ElBakoury@xxxxxxxxxx]
发送时间: 20111213 14:55
收件人: 胡保民; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
主题: RE: [802.3_EPOC] Study Group Questions

 

Hi Baomin,

 

Is there an English version of this white paper that you can share with the group ?

 

Thanks

 

Hesham

 

From: 胡保民 [mailto:hubaomin@xxxxxxxxxxx]
Sent: Monday, December 12, 2011 10:41 PM
To: Hesham ElBakoury; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject:
答复: [802.3_EPOC] Study Group Questions

 

There is a requirement whitepaper of NGB EoC in China. I think we should consider about it.

 

Chinese name is: <面向下一代广播电视网(NGB)的电缆接入技术需求白皮书>

 

Best Regards,

 

Hu Baomin

 

发件人: Hesham ElBakoury [mailto:Hesham.ElBakoury@xxxxxxxxxx]
发送时间: 20111213 14:30
收件人: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
主题: Re: [802.3_EPOC] Study Group Questions

 

Marek,

 

The MSO in China may care about it, and of course we need to have good arguments in favor of it for EPoC group to consider it.

 

Hesham

 

From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxxxxx]
Sent: Monday, December 12, 2011 10:20 PM
To: Hesham ElBakoury; STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: RE: [802.3_EPOC] Study Group Questions

 

Hesham

 

The number of PHYs will be covered by the discussion under the SG charter. It will be probably one of the objectives of the future project

 

The same applies to the compatibility with HomePlugAV. If you care about it, you should probably bring in good arguments in favour of it …

 

Marek

 

From: Hesham ElBakoury [mailto:Hesham.ElBakoury@xxxxxxxxxx]
Sent: 13 December 2011 05:56
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_EPOC] Study Group Questions

 

Hi Kevin,

 

I think by MSO you mean both MSO in NA and other countries/regions like China. For example, MSO in China deploy several EoC solutions including

HomePlugAV which is the dominant EoC solution in China. Some MSO in China may want EPoC to be backward compatible with HomePlugAV. This brings

other questions that we need to address:

 

1-  Should backward compatibility with HomePlugAV be an objective of EPoC ?

2-  Should we develop spec for one PHY or more than one PHY ?

 

I am sure the list of questions will grow as we explore various issues related to EPoC. I would think that some of these questions will be answered

in the next EPoC meeting through contributions from different members.

 

Thanks

 

Hesham

 

-----Original Message-----
From: Noll, Kevin [mailto:kevin.noll@xxxxxxxxxxx]
Sent: Monday, December 12, 2011 9:20 PM
To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_EPOC] Study Group Questions

 

Those are all questions that will be studied by the SG. They should eventually be used to develop requirements for the final product.

 

We are early in this process and there are a lot of questions to be asked of the MSOs to find out what these requirements are.

 

--kan--

--

Kevin A. Noll, CCIE

Principal Engineer

Time Warner Cable

13820 Sunrise Valley Drive

Herndon, VA 20171

o: +1-703-345-3666

m: +1-717-579-4738

AIM: knollpoi

 

From: John Santhoff <jsanthoff@xxxxxxxxxxxxx<mailto:jsanthoff@xxxxxxxxxxxxx>>

Reply-To: John Santhoff <jsanthoff@xxxxxxxxxxxxx<mailto:jsanthoff@xxxxxxxxxxxxx>>

Date: Tue, 13 Dec 2011 00:04:52 -0500

To: "STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx<mailto:STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>" <STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx<mailto:STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>>

Subject: Re: [802.3_EPOC] Study Group Questions

 

I'm new to this group so please forgive me if these questions have already been answered. If so where can I find the document?

 

1) What are the frequencies to be used for Downstream and Upstream?

 

2) Is the goal to use the existing infrastructure "As-Is" or do we have the option to upgrade equipment?

 

3) Is the goal to maintain existing amplifier spacing?

 

4) Is the plan to maintain the 6/8 MHz channel spacing?

 

5) What about legacy signaling? Is that being maintained?

 

-John

 

 

 

On Fri, Dec 9, 2011 at 9:31 PM, Hesham ElBakoury <Hesham.ElBakoury@xxxxxxxxxx<mailto:Hesham.ElBakoury@xxxxxxxxxx>> wrote:

 

Hi Howard,

 

 

 

I have few questions regarding the Operator requirements (pertaining to physical layer):

 

 

 

   Service coexistence issues and criteria

 

   Services to be provided over EPoC

 

HEB> Do you mean residential and business services or video, IPTV, VoIP, data services ?

 

      and how they will evolve over time

 

      Business vs residential services

 

            (will they exist on the same network?)

 

      Asymmetry vs. symmetry

 

   Existing cable plant characteristics

 

      Architectures

 

            (Node+0 "passive", Node+N [N=1-?],  Complete HFC, MxU)

 

      Amplifier characteristics and considerations that will effect the PHY

 

      Cable & passives characteristics

 

      Typical size of cable plant

 

HEB> I am not sure how you measure the size ? (number of home passed, size of coverage area, number of nodes, … etc).

 

      Subscribers passed

 

      Number and size of taps

 

   Changes to cable plant characteristics over time

 

     (e.g. passive and active element changes, any use of bypasses?)

 

   Spectral allocation

 

      and how it changes over time

 

      Which frequencies are amplified and which are passive

 

   `  What spectrum will be allocated for EPoC initially,

 

            and how will that change over time

 

                Regional differences for changes?

 

   Functional Assumptions and Impairments

 

      DOCSIS 3.0 has already characterized in CM-SP-PHYv3.0-I05-070803, Chapter 5,

 

                  and in CM-SP-DRFI-I12-111117, Chapter 5, for "in amplified" regions of

 

                  cable. For both "in amplified" and "passive" EPoC considerations, are

 

                  there any additonal functional assumptions and impairments that need to

 

                  be considered for up to 1Gbps and higher operation?

 

                How will these change over time?

 

                Are there regional differences; e.g. China, Europe?

 

   Number of subscribers per network, take rate

 

   Minimum required channel data rate

 

   Maximum desired channel data rate

 

 

 

Thanks

 

 

 

Hesham

 

 

 

-----Original Message-----

From: Howard Frazier [mailto:hfrazier@xxxxxxxxxxxx<mailto:hfrazier@xxxxxxxxxxxx>]

Sent: Monday, December 05, 2011 7:00 PM

To: STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx<mailto:STDS-802-3-EPOC@xxxxxxxxxxxxxxxxx>

Subject: [802.3_EPOC] Study Group Questions

 

 

 

The first meeting of the IEEE 802.3 EPON Protocol over Coax (EPoC) PHY Study Group will be held January 24th and 25th in Newport Beach, CA, hosted by the Ethernet Alliance. Please see my previous message for links to meeting logistical details.

 

 

 

In preparation for the meeting, Mark Laubach and I put together a list of topics that can help us prepare for a successful study group meeting, and these are listed in the attached file.

 

 

 

The first set of topics deals with the IEEE 802 standards development process. I have all of the material I need for this section, and I am sure that I will be able to enlist the help of some of our experienced hands to deliver it.

 

 

 

The second set of topics deals with operator requirements, and this is where I would like to make an appeal for contributions. We may not get contributions that address all of the topics listed, and there may not even be universal agreement that the topics are relevant, but I think that these are areas that must be explored in the study group if we are to do a proper job of defining the scope of a new project, and judging it against the "5 Criteria".

 

 

 

People wishing to make a contribution to the study group should review the "Procedure for Presenters" information that can be found here:

 

 

 

http://www.ieee802.org/3/epoc/public/presentproc.html

 

 

 

Since this is a new email reflector, I would also like to make people aware of the IEEE 802.3 Working Group email reflector policy that can be found here:

 

 

 

http://www.ieee802.org/3/reflector_policy.html

 

 

 

I will welcome your comments and questions.

 

 

 

Howard Frazier

 

Broadcom Corporation

 

 

 

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