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Re: [Idr] [Int-area] New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt

Hesham ElBakoury <helbakoury@gmail.com> Fri, 09 July 2021 17:51 UTC

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To: Lin Han <lin.han@futurewei.com>
Cc: "UTTARO, JAMES" <ju1738@att.com>, "Int-area@ietf.org" <Int-area@ietf.org>, "idr@ietf.org" <idr@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>, "SARAH@JISCMAIL.AC.UK" <SARAH@jiscmail.ac.uk>
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From: Hesham ElBakoury <helbakoury@gmail.com>
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Date: Fri, 09 Jul 2021 10:51:14 -0700
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Subject: Re: [Idr] [Int-area] New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt
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Hi Lin,

Is the integration of 5G and satellite networks part of your research ?. 
3GPP has started the work on this integration and already has work items 
(WI) for Rel 17 and 18 to address this issue. There are already few 
recent related publications. For example, here is a recent survey: 
https://ieeexplore.ieee.org/document/9193893. I am not sure if O-RAN is 
currently working on this issue ?

Thanks

Hesham

On 7/7/2021 10:18 AM, Lin Han wrote:
>
> Hi, Hesham
>
> Thanks for the info.
>
> The reference from prof. Mark has been given in the draft as 
> [UCL-Mark-Handley] (sec. 7.2.2), the paper has demonstrated that 
> satellite relay can achieve shorter latency than ground fiber network 
> through simulation.
>
> But for commercial use and widely deployment, IETF still needs 
> technologies/protocols to solve issues in “multiple satellite relay”, 
> such as path/satellite selection, IP continuity, etc. Enhanced or new 
> anchor-less mobility technologies might be needed to handle so 
> quick/frequent hands over and topology changes.
>
> Regards
>
> Lin
>
> *From:* Hesham ElBakoury <helbakoury@gmail.com>
> *Sent:* Tuesday, July 6, 2021 7:51 PM
> *To:* Lin Han <lin.han@futurewei.com>
> *Cc:* UTTARO, JAMES <ju1738@att.com>; Int-area@ietf.org; idr@ietf.org; 
> rtgwg@ietf.org; SARAH@JISCMAIL.AC.UK
> *Subject:* Re: [Int-area] New Version Notification for 
> draft-lhan-problems-requirements-satellite-net-00.txt
>
> Mark Handley published the paper "*Using ground relays for low-latency 
> wide-area routing in megaconstellations"* to show that even if we do 
> not have ISL we can use ground terminals to route traffic with better 
> latency than fiber links.
>
> Thanks
>
> Hesham
>
> On Tue, Jul 6, 2021, 10:08 AM Lin Han <lin.han@futurewei.com 
> <mailto:lin.han@futurewei.com>> wrote:
>
>     Hi, Jim
>
>     I don't have clear answer.
>     What I can guess now is that most of current technologies (with
>     enhancement) can be used, but some new technologies might be
>     needed to solve the satellite specific issues, such as fast
>     mobility, frequent topology changes, constraints in satellite
>     power, security in open space, etc.
>     It is up to the community to decide what new technologies and what
>     new protocols will be developed.
>
>     Regards
>
>     Lin
>
>
>     -----Original Message-----
>     From: UTTARO, JAMES <ju1738@att.com <mailto:ju1738@att.com>>
>     Sent: Tuesday, July 6, 2021 7:20 AM
>     To: Lin Han <lin.han@futurewei.com
>     <mailto:lin.han@futurewei.com>>; Int-area@ietf.org
>     <mailto:Int-area@ietf.org>; idr@ietf.org <mailto:idr@ietf.org>;
>     rtgwg@ietf.org <mailto:rtgwg@ietf.org>
>     Cc: SARAH@JISCMAIL.AC.UK <mailto:SARAH@JISCMAIL.AC.UK>
>     Subject: RE: New Version Notification for
>     draft-lhan-problems-requirements-satellite-net-00.txt
>
>     Lin,
>
>             Are you suggesting that the current set of protocols can
>     be used with or without enhancements or is the uniqueness of the
>     satellite network require new protocol(s) to address the
>     architecture you have laid out..
>
>     Thanks,
>             Jim Uttaro
>
>     -----Original Message-----
>     From: Idr <idr-bounces@ietf.org <mailto:idr-bounces@ietf.org>> On
>     Behalf Of Lin Han
>     Sent: Saturday, July 03, 2021 8:41 PM
>     To: Int-area@ietf.org <mailto:Int-area@ietf.org>; idr@ietf.org
>     <mailto:idr@ietf.org>; rtgwg@ietf.org <mailto:rtgwg@ietf.org>
>     Cc: SARAH@JISCMAIL.AC.UK <mailto:SARAH@JISCMAIL.AC.UK>
>     Subject: [Idr] FW: New Version Notification for
>     draft-lhan-problems-requirements-satellite-net-00.txt
>
>     Hi,
>
>     This draft analyzed the problems and requirements for the
>     satellite network when it is integrated with Internet by current
>     routing technologies.
>     It may be relevant and interesting to internet, BGP, IGP. The
>     further solution proposals may also come from different groups
>     including research initiative SARAH.
>
>     Look forwarding to discussion and comments.
>
>     Thanks
>
>     Lin
>
>     -----Original Message-----
>     From: internet-drafts@ietf.org <mailto:internet-drafts@ietf.org>
>     <internet-drafts@ietf.org <mailto:internet-drafts@ietf.org>>
>     Sent: Saturday, July 3, 2021 5:07 PM
>     To: Lin Han <lin.han@futurewei.com
>     <mailto:lin.han@futurewei.com>>; Richard Li
>     <richard.li@futurewei.com <mailto:richard.li@futurewei.com>>
>     Subject: New Version Notification for
>     draft-lhan-problems-requirements-satellite-net-00.txt
>
>
>     A new version of I-D,
>     draft-lhan-problems-requirements-satellite-net-00.txt
>     has been successfully submitted by Lin Han and posted to the IETF
>     repository.
>
>     Name:  draft-lhan-problems-requirements-satellite-net
>     Revision:       00
>     Title:          Problems and Requirements of Satellite
>     Constellation for Internet
>     Document date:  2021-07-03
>     Group:          Individual Submission
>     Pages:          32
>     URL:
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>
>     Abstract:
>        This document presents the detailed analysis about the problems and
>        requirements of satellite constellation used for Internet.  It
>     starts
>        from the satellite orbit basics, coverage calculation, then it
>        estimates the time constraints for the communications between
>        satellite and ground-station, also between satellites.  How to use
>        satellite constellation for Internet is discussed in details
>        including the satellite relay and satellite networking.  The
>     problems
>        and requirements of using traditional network technology for
>        satellite network integrating with Internet are finally outlined.
>
>
>
>
>     The IETF Secretariat
>
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