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 <[email protected]>
*Sent:* Tuesday, July 6, 2021 7:51 PM
*To:* Lin Han <[email protected]>
*Cc:* UTTARO, JAMES <[email protected]>; [email protected]; [email protected];
[email protected]; [email protected]
*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 <[email protected]
<mailto:[email protected]>> 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 <[email protected] <mailto:[email protected]>>
Sent: Tuesday, July 6, 2021 7:20 AM
To: Lin Han <[email protected]
<mailto:[email protected]>>; [email protected]
<mailto:[email protected]>; [email protected] <mailto:[email protected]>;
[email protected] <mailto:[email protected]>
Cc: [email protected] <mailto:[email protected]>
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 <[email protected] <mailto:[email protected]>> On
Behalf Of Lin Han
Sent: Saturday, July 03, 2021 8:41 PM
To: [email protected] <mailto:[email protected]>; [email protected]
<mailto:[email protected]>; [email protected] <mailto:[email protected]>
Cc: [email protected] <mailto:[email protected]>
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: [email protected] <mailto:[email protected]>
<[email protected] <mailto:[email protected]>>
Sent: Saturday, July 3, 2021 5:07 PM
To: Lin Han <[email protected]
<mailto:[email protected]>>; Richard Li
<[email protected] <mailto:[email protected]>>
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
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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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