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Stanton
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Mobile operators to shut down 3G networks in 2022

Wed Aug 12, 2020 7:34 am

It's deja-vu all over again: we will have the same problem we did with CarWings/EV Connect vis-a-vis 3G we did with 2G. A couple of things come to mind:
1) Does anyone know if the chip set on the (replacement/upgrade) TCU modems supports LTE (4G) as well as 3G?
2) Has anyone spoken to Nissan about the prospects of another modem upgrade cycle?

I didn't anticipate that a 3G network shut-down would so closely follow the 2G network shut-down, but spectrum is scarce and 5G is on the way. At least we've been through this once before (although it wasn't pretty), but I know I don't want to lose telematics capability in my Leaf. A key to the magnitude of the problem will be knowing whether the current 3G chip set also supports LTE, which allows for the possibility of a firmware as opposed to a hardware update.
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jlv
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Re: Mobile operators to shut down 3G networks in 2022

Wed Aug 12, 2020 8:04 am

Stanton wrote:
Wed Aug 12, 2020 7:34 am
1) Does anyone know if the chip set on the (replacement/upgrade) TCU modems supports LTE (4G) as well as 3G?
Almost certainly not.
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Stanton
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Re: Mobile operators to shut down 3G networks in 2022

Wed Aug 12, 2020 9:38 am

jlv wrote:
Wed Aug 12, 2020 8:04 am
Stanton wrote:
Wed Aug 12, 2020 7:34 am
1) Does anyone know if the chip set on the (replacement/upgrade) TCU modems supports LTE (4G) as well as 3G?
Almost certainly not.
No offense...but that doesn't sound very definitive.
If you can identify the chip set (manufacturer/number), then I would believe you. The fact is, I am not aware of any (newer) 3G chip sets that don't support LTE...but that doesn't mean Nissan used one of those.
2011 Blue Ocean SV w/floor mats & window tint
Lithium Pros 12v LiFePO4 battery w/Antigravity Battery Tracker
FIAMM 74100 horns
Wet Okole seat covers
Tor's low-power heater mod
2013 sun visor
Battery Pack replaced (Rev E) @51 months and 41k miles

cwerdna
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Re: Mobile operators to shut down 3G networks in 2022

Wed Aug 12, 2020 12:02 pm

https://www.nissanusa.com/connect/support-faqs.html says re: 4G
"Will the new TCU hardware work with the 4G network?
No. The new TCU hardware will be designed to connect to the current AT&T 3G cellular network." and

"Why is Nissan using 3G technology rather than 4G?
Nissan has studied how to integrate newer technology into your vehicle and developed solutions aimed at delivering a hardware update option with the least inconvenience to customers. The new TCU hardware will be designed to connect to AT&T's 3G cellular network. Nissan does not control availability of any cellular network and cellular network may not be available in all areas and/or available at all times."

Who knows if their chipset actually doesn't support it 4G or LTE or it's buggy or if they just aren't using the capability right now?

https://www.att.com/support/article/wireless/KM1324171/ says "One change we’re making is phasing out our 3G network by February 2022. Once we do, 3G devices and 4G wireless devices that don’t support HD Voice will no longer work on our network."

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Stanton
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Re: Mobile operators to shut down 3G networks in 2022

Wed Aug 12, 2020 1:15 pm

cwerdna wrote:
Wed Aug 12, 2020 12:02 pm
https://www.nissanusa.com/connect/support-faqs.html says re: 4G
"Will the new TCU hardware work with the 4G network?
No. The new TCU hardware will be designed to connect to the current AT&T 3G cellular network." and
Well, that sucks; thanks for digging up the Nissan FAQ. I knew about the AT&T stuff...which is really what led me to create this thread.
Guess we will have to do the "TCU upgrade dance" again...and sooner than I thought.
2011 Blue Ocean SV w/floor mats & window tint
Lithium Pros 12v LiFePO4 battery w/Antigravity Battery Tracker
FIAMM 74100 horns
Wet Okole seat covers
Tor's low-power heater mod
2013 sun visor
Battery Pack replaced (Rev E) @51 months and 41k miles

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