Re: [ipwave] Feedback from ITU-R CITS about IP and cellular for vehicular networks
Alexandre Petrescu <alexandre.petrescu@gmail.com> Mon, 04 October 2021 10:00 UTC
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Mon, 04 Oct 2021 12:00:30 +0200
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Subject: Re: [ipwave] Feedback from ITU-R CITS about IP and cellular for vehicular networks
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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 > its@ietf.org > https://www.ietf.org/mailman/listinfo/its
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