5G roadblock: labor

Fri Jan 17 20:36:21 UTC 2020

>
> You refer to a certain NR protocol.  (NR - New Radio).  It is
> possible to check in 3GPP specs what precisely does it mean an 'NR
> protocol'.  The questions to answer when searching would be something
> like: is it TDD or FDD?  Is it SC-FDMA?  And then compare these terms to
> what the iphone 11 does in these frequency bands.  Maybe iphone 11 does
> TDD in band 48 but does not do SC-FDMA (or something like that).
>
> I am not sure we can say that 'NR protocol' is like a message exchange
> like I know in DHCP for example.
>

5G NR the layer 1 radio access specification, just like LTE, GSM, etc. It
is defined in 3GPP spec series 38.

https://www.3gpp.org/DynaReport/38-series.htm

On Fri, Jan 17, 2020 at 2:34 PM Alexandre Petrescu <
alexandre.petrescu at gmail.com> wrote:

> Mark, Shane,
>
> I do agree that listing a 3.5 GHz band of frequencies does not
> necessarily mean it's 5G.
>
> Bu I would like to further clarify, if you permit:
>
> 1. From the web: The band 71 (UHF range) seems to be for 4G _and_ 5G.
> Some descriptions on the web say so.
>
>  From the web: the band 42 (3400–3600MHz) is for CBRS in EU and Japan.
>
>  From the web: the band 48 (3550-3700MHz) is for CBRS in US (Citizens'
> band broadband service; I suppose something like voice between trucks)
>
> It is possible to check in 3GPP specs, ETSI specs and ARCEP public
> ambitions, whether or not the bands intended for 5G (and up for auction)
> fall within these frequency bands 71, 42 and 48.  My gut feeling is that
> the answer is yes.
>
> 2. You refer to a certain NR protocol.  (NR - New Radio).  It is
> possible to check in 3GPP specs what precisely does it mean an 'NR
> protocol'.  The questions to answer when searching would be something
> like: is it TDD or FDD?  Is it SC-FDMA?  And then compare these terms to
> what the iphone 11 does in these frequency bands.  Maybe iphone 11 does
> TDD in band 48 but does not do SC-FDMA (or something like that).
>
> I am not sure we can say that 'NR protocol' is like a message exchange
> like I know in DHCP for example.
>
> 3. you refer to a potential Qualcomm 5G modem in second half of year
> 2020.  I wonder whether there are public announcements for them?  Or
> will it be sufficient to firmware upgrade the iphone to make it carry a
> 5G label? (like Teslas are updated to software to make them self-driving
> or so; or like with software SIM cards).
>
> 4. I wonder whether some existing smartphone on the market (not an
> iphone, maybe a samsung or so) already features an entry in its table
> with a feature that makes it a '5G' smartphone.
>
> Alex
>
> Le 17/01/2020 à 06:05, Mark Tinka a écrit :
> >
> >
> > On 16/Jan/20 19:23, Shane Ronan wrote:
> >
> >> The iPhone 11 does not have a 5G (NR) capable modem. The 3.5Ghz freq
> >> support is for the CBRS bands in the US.
> >>
> >> Support for 5G is not just a freq band support, it requires a
> >> chipset/modem capable of support the NR protocol.
> >
> > Yes, exactly.
> >
> > Word is Apple should start shipping Qualcomm's 5G modems in 2H'20, and
> > its own in 2021.
> >
> > Personally, I'm not in any rush to buy a phone with 5G on it. Wi-fi or
> > existing 4G/LTE is fine for me.
> >
> > I'm due to upgrade my iPhones this year. I'll take whatever they come
> with.
> >
> > Mark.
> >
>
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