Re: [ipwave] Feedback from ITU-R CITS about IP and cellular for vehicular networks

[Alexandre Petrescu <[e-mail]>]

Replying to my own message, sorry.

I think it is possible today to try and make work IPv6 over a cellular 
link 5G; easily there are 5G cards for laptops and SIM cards from mobile 
operators on deployed 5G networks in the cities.

There might be a problem with cars on IPv6 on 5G; that problem relates 
to the mandatory use of prefix lengths of precisely 64bit length in 
every RA sent by every mobile operator in the world (no operator sends a 
/63, for example).  This means that one cant connect all computers in a 
car through a unique IP-OBU (a Mobile Router, a 'car gateway') to the 
Internet, without involving tunnels or a NAT.

This is a big problem that would need to be solved when talking about 
cars on 5G.  Otherwise there cant be cars on 5G.

There might be other problems with IP on C-V2X on a car-to-car without 
base station scenario.

Alex

Le 04/10/2021 à 11:52, Alexandre Petrescu a écrit :
> Hi, IPWAVErs,
> 
> I gave a brief presentation of the IPWAVE WG, RFC8691 and Vehicular 
> Networks I-D to the ITU CITS 'Collaboration on ITS Standards', in 
> September, 2021.
> 
> This is the feedback I received:
> 
>      Bring the cellular kind of work, like IP-over-cellular, in
>      IPWAVE WG.  This request is so because:
>          - because China efforts on cellular and because
>            USA FCC regulation changes at 5.9GHz to include
>            C-V2X ('C'==cellular).
>          - because at ETSI it is thought that it is easy
>            to do IP over any access layer, be it 802.11-OCB
>            or a cellular kind of link layer.
> 
> What do you think?
> 
> Alex
> 
> _______________________________________________
> its mailing list
> [e-mail]
> https://www.ietf.org/mailman/listinfo/its