Re: [ipwave] PC5 at 5.9GHz - modules
Alexandre Petrescu <alexandre.petrescu@gmail.com> Fri, 15 October 2021 12:52 UTC
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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At this point with all things I learned it seems to me that it is not possible to easily acquire 'C-V2X' modules even though there is a list of many such things available https://5gaa.org/wp-content/uploads/2020/11/5GAA_List-of-C-V2X-Devices.pdf There are devices of class 'development kits'; there are many plans for developping devices, but there is no simple way to acquire one. The easiness to acquire such a device should amount to buying an advanced WiFi module on Amazon: next day delivery for a price in the tens of euros for a module and immediate support in the linux kernel. But there might be alternatives to that. Maybe a 5G module made by Telit sold by Techship could be an alternative to 'C-V2X'. I didnt try it but I could. Assuming one acquires such a 5G module, the questions would be then whether linux supports it, whether IPv6-on-5G would amount to 'IPv6 on C-V2X' and not least whether sending CAMs on IPv6 on 5G amounts to 'IPv6 on C-V2X'? Or must they be absolutely BSMs to be qualified as 'C-V2X'? What does it mean 'C-V2X' anyways... Alex Le 31/03/2021 à 18:47, Alexandre Petrescu a écrit : > In private I am pointed to Wistron as well. Wistron's web page looks > attractive and their reputation is high. > > It is there > https://www.wnc.com.tw/index.php?action=pro_cate_third_close&top_id=106&scid=123&tid=145 > > > But it is not a mass produced device. It is way too expensive. I > wouldnt put a 1000EUR device in a cheap car that costs itself 5000EUR. > It is not proportional. > > I wait so it becomes cheaper. > > Alex > > > Le 31/03/2021 à 16:52, Alexandre Petrescu a écrit : >> 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 >> >> _______________________________________________ >> 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