Re: [ipwave] PC5 at 5.9GHz - modules
Alexandre Petrescu <alexandre.petrescu@gmail.com> Wed, 31 March 2021 14:52 UTC
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Wed, 31 Mar 2021 16:52:28 +0200
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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I am told in private about success reports on linux with: - USRP B210 SDR Kit - Dual Channel Transceiver (70 MHz - 6GHz) - Ettus Research - ~1000Eur. - CohdaWireless MK6 evaluation kits. For my part, I am looking for cheap miniPCIe cards for C-V2X at 5.9GHz for linux. Maybe these will come up a little bit later. Alex Le 31/03/2021 à 15:17, Alexandre Petrescu a écrit : > 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 > > _______________________________________________ > its mailing list > its@ietf.org > https://www.ietf.org/mailman/listinfo/its
- [ipwave] PC5 at 5.9GHz? Alexandre Petrescu
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- 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