[Ovmsdev] Cellular usage, as it applies to OVMS

[Mark Webb-Johnson]

The issue I see is that each time we go 2G -> 3G -> 4G -> 5G, the energy consumption of the modem chip goes up.

The IoT specific variants held a lot of promise, but with competing standards like CAT-M1, NB-IoT, etc, spotty carrier support, and a lack of global standardization; it seems to me that IoT has been left in the dust in the quest for more bandwidth at the expense of increased energy consumption on the device itself.

Regards, Mark.

> On 8 Aug 2024, at 3:01 PM, Jérôme Nicolle via OvmsDev <ovmsdev at lists.openvehicles.com> wrote:
> 
> Hello Mark,
> 
> That's what I tried to teach a few years ago : more potential capacity for less baseline energy consumption. 5g can halve cellular networks' footprint with the same performances, OR multiply their bandwidth if we use it at full capacity and keep their draw in line with existing sites.
> 
> On the French overseas territories we just had a new regulatory framework enacted. It mandates radio coupling and/or RAN sharing. We're gonna shave off nearly 40% of the current energy footprint once upgraded (gonna take about 2 years).
> 
> The issue is, most MNOs are planing to refarm 800, 900, 1800 and 2100MHz allocations to 4/5G DSS, because their equipments can't share spectrum with older techs.
> 
> It's not like we have elevators in many buildings around those Caribbean islands, but we'll loose E-call on most of the vehicles, and barely can use IoT devices such as the latest OVMS, because full coverage is daunting.
> 
> I'm thinking we could use some contributive mapping of radio coverage from the OVMS. Might be a bad idea, because anonymizing the dataset poses a trust issue, though in a time many networks are just dumping 3G and will soon end 2G, we might have some data to adapt and share.
> 
> Best regards,
> 
> -- 
> Jérôme Nicolle
> +33 6 19 31 27 14
> +590 690 22 87 14
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