Re: [LOOPS] draft-li-tsvwg-loops-problem-opportunities and use-cases.

[[e-mail]]

Hi Gorry, 

Please see inline.

Cheers,
Med

> -----Message d'origine-----
> De : Gorry Fairhurst [mailto:[e-mail]]
> Envoyé : mercredi 29 juillet 2020 13:25
> À : BOUCADAIR Mohamed TGI/OLN <[e-mail]>; loops
> <[e-mail]>
> Objet : Re: [LOOPS] draft-li-tsvwg-loops-problem-opportunities and
> use-cases.
> 
> Hi med,
> 
> On 29/07/2020 07:14, [e-mail] wrote:
> > Hi Gorry,
> >
> > I guess you are referring to this text:
> >
> >     Similar issues and optimizations
> >     may be helpful in other deployments such as enhancing the
> reliability
> >     of data transfer when a fleet of drones are used for specific
> >     missions (e.g., site inspection, live streaming, and emergency
> >     service).  Captured data should be reliably transmitted via
> paths
> >     involving radio connections.
> >
> > Actually, this is an old text. The main point we wanted to convey
> here is that when a swarm of drones is collaborating for example to
> provide connectivity, multiple drones (seen ad as forwarders) will be
> solicited till packets are (hopefully) delivered to a network where
> the fleet of drones is grafted (can be a 3GPP core network). The idea
> we had in mind is that LOOPS can be enabled in such mutli-hop wireless
> network (composed of drones) for the sake of performance optimization.
> >
> > Cheers,
> > Med
> 
> So this use case probably needs more text. I think you're saying
> drones are an example of a network with continuously changing paths.

[Med] Yes...and a particularity of that case is that the performance of the sub-paths is not known beforehand (because the paths themselves are not known nor the "physical" environment where these paths are established. 


> To me, mitigating the impacts of handover likely does expose some
> interesting constraints on the designs for LOOPS as well as on the
> performance. 

[Med] Fully agree. Aligned with the scope set for the initial LOOPS work, we can remove that part of the draft but set it as a future perspective if LOOPS proves to be beneficial for "stable" topologies.   

 I haven't though about what that means wrt to using ECN
> and path information.
> 
> Gorry
> 
> >> -----Message d'origine-----
> >> De : LOOPS [mailto:[e-mail]] De la part de Gorry
> >> Fairhurst Envoyé : lundi 27 juillet 2020 17:22 À : loops
> >> <[e-mail]> Objet : [LOOPS]
> >> draft-li-tsvwg-loops-problem-opportunities and use- cases.
> >>
> >> Thank you for the scenarios update in
> >> draft-li-tsvwg-loops-problem-opportunities, I see you have updated
> >> the text relating to satellite network segments. I now have some
> more
> >> questions on scenarios based on the what is said in the most recent
> >> ID:
> >>
> >>
> >> (4) I see you also mention in the latest rev adds a use case for a
> >> "fleet of drones" - I'm not quite sure what this is describing,
> maybe
> >> you could expand how this works, and add some text to the draft.
> >>
> >> Gorry
> >>
> >
> >
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Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
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