Re: [ipwave] PC5 at 5.9GHz - modules
Alexandre Petrescu <alexandre.petrescu@gmail.com> Wed, 31 March 2021 13:17 UTC
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
To: its@ietf.org
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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For information, Me and a colleague have looked independently at the pdf of devices for C-V2X. My goal is to identify the best possible C-V2X miniPCIe card that is supported in linux. By reputation, maybe the Unex is the most likely to offer one such card. A few of us already worked with Unex cards in the past, but for ITS-G5. But Unex card for C-V2X at 5.9GHz is not yet available to acquire easily (like e.g. buying on Amazon or alibaba). I wait for easy availability because of the risk of what might happen at customs. The regulation of C-V2X spectrum in Europe and in the country where I live is far from straightforward: it is not clear in Europe whether or not C-V2X technology is allowed at 5.9GHz. BEcause of that uncertainty the customs prices can skyrocket easily (add up to double to the original price). We wait. Alex Le 26/01/2021 à 17:41, Alexandre Petrescu a écrit : > I was provided in private the 5GAA's list of PC5 capable devices. It > is a public document whose links clicked ok in OCtober 2020; the > document is at URL > https://5gaa.org/wp-content/uploads/2020/11/5GAA_List-of-C-V2X-Devices.pdf > > Some of the links no more work. > > The document is sorted by: chips, modules, OBUs, RSUs, etc. > > The chips are from: Autotalks, Huawei, Qualcomm. > > The modules are from: SimCOM, muRata, Quectel, WNC, LG Innotek, ZTE, > Neoway, Unex, Datang, Alps Alpine. > > A promising chips to try might be the those who say 'linux' and 'Mode > 4' (a kind of LTE equivalent of 802.11 'ad-hoc' mode). Because the > software driver in linux would be freely available and the Mode 4 > would be the mode not needing SIM card. > > I am not sure though whether or not there are currently linux > drivers available freely for 'Mode 4' implementations? > > Alex > > Le 24/01/2021 à 13:48, Alexandre Petrescu a écrit : >> Hi, IPWAVErs, >> >> Is there cheaply available hardware to make work PC5 at 5.9GHz? >> PC5 is a part of 5G specs that deal with direct communications >> between vehicles, presumably without SIM cards and without the >> involvement of a Mobile Network Operator (MNO). >> >> For my part, I think no, there is no PC5 hardware at 5.9GHz. >> >> It is very likely, I think, that PC5 hardware (modems, interfaces) >> might use a very different PHY layer than what 802.11-OCB uses. >> That might be the 'New Radio' (NR) of 5G. NR is incompatible with >> 802.11 PHY layer. >> >> There are no 5.9GHz bands, no spectrum, allocated neither in USA >> by FCC nor in Europe by the Commission, for 'C-V2X' or for 'PC5' >> even though there might have been a request for comments ('an >> 'NPRM') at FCC in USA in that sense. That NPRM did not lead to >> allocating 5.9GHz spectrum for C-V2X. It is one year now since >> that NPRM closed. >> >> Currently, all 5.9GHz bands are fully allocated to 'DSRC' (or, >> 802.11 if you wish, or 'ITS-G5'). >> >> However, I was pointed by a vehicle manufacturer to a router >> manufacturer (Comsignia, see https://www.commsignia.com/hardware/) >> description that states that one feature is "DSRC and C-V2X (PC5) >> communication interfaces". The price of that OBU is not >> displayed, but I suspect it to be in the range of a couple thousand >> euros, which can still be affordable, even though not for a series >> car whose price might be highly affected. >> >> Also, I was pointed to a recent cheap hardware "AirPrime® EM9190 >> 5G NR Sub-6 GHz and mmWave Module" which lists the following >> bands: "Sub-6: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, >> n40, n41, n48, n66, n71, n77, n78, n79, mmWave: n257, n258, n260, >> n261". In this list, there are not the bands 'n46' and 'n47', >> which are the bands for 5.9GHz. >> >> This brings me the question: is there cheap hardware for PC5 at >> 5.9GHz? >> >> Alex >> >> _______________________________________________ its mailing list >> its@ietf.org https://www.ietf.org/mailman/listinfo/its > > _______________________________________________ its mailing list > its@ietf.org https://www.ietf.org/mailman/listinfo/its
- [ipwave] PC5 at 5.9GHz? Alexandre Petrescu
- Re: [ipwave] PC5 at 5.9GHz - Mode 4 linux drivers? Alexandre Petrescu
- Re: [ipwave] PC5 at 5.9GHz - modules Alexandre Petrescu
- Re: [ipwave] PC5 at 5.9GHz - modules Alexandre Petrescu
- Re: [ipwave] PC5 at 5.9GHz - modules Alexandre Petrescu
- Re: [ipwave] PC5 at 5.9GHz - modules Alexandre Petrescu