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5G Just Got Weird

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Re: 5G Just Got Weird

#51

Post by johnnycab »

lipanski wrote: post #8
elil17 wrote: post #2

As I’ve learned more and more about 5G (which is a nebulous term, really, but what I mean specifically is the planned upcoming releases of LTE 16 and 17, as well as the features of LTE 14 and 15 that users have yet to take advantage of) I’ve become convinced that it’s going to transform how so much of the world is designed. 5G technologies allow for more devices to send more data using less power. This is achieved us…

> As I’ve learned more and more about 5G Out of curiousity, what's a good source of information on 5G? I assume the standard itself is not the easiest thing to digest so I'd appreciate your input.

Yes, the 3GPP or ITU standards can make for a dour read. Probably best to look for sources that you find engaging. You can start with something that gives you the basics, and/or just go straight to the vendors ─ who provide a plethora of white papers, case studies, industry insights etc.

https://5g.systemsapproach.org/index.html

https://www.ericsson.com/en/5g/5g-for-consumers

https://www.nokia.com/networks/5g/

Re: 5G Just Got Weird

#52

Post by graerg »

bdamm wrote: post #27
rsynnott wrote: post #16

Earlier quoted context omitted.

Last mile for fixed rural wireless broadband seems like the obvious one. Today, this is generally done with either LTE or various proprietary things (or if you’re particularly unlucky, satellite). 5G should allow for greater total bandwidth, reducing the impact of contention. And on the other side, it should be helpful for very dense urban usage. Try using LTE in a large city’s central train station at a busy time an…

Starlink is going to dominate this. Cellular can't economically scale out to meet the vast rural coverage. There are still plenty of towns that don't have basic coverage even now, and to think that suddenly they're going to get 5G equipment... seems unlikely. Meanwhile, the Starlink satellites are up and base stations are in testing. Once they approve and start building out their ground stations, it's SpaceX's busine…

5g and starlink are almost certainly going to be used in tandem in rural areas.

Re: 5G Just Got Weird

#53

Post by phkahler »

rsynnott wrote: post #16
thinkingkong wrote: post #11

5G doesnt seem like its enabling anything fundamentally new. The talk of any ”killer app” based on having more throughput or on these optimizations always feels like demand generation and slightly inauthentic. Are there any technologies enabled by these techniques that are not possible today?

Last mile for fixed rural wireless broadband seems like the obvious one. Today, this is generally done with either LTE or various proprietary things (or if you’re particularly unlucky, satellite). 5G should allow for greater total bandwidth, reducing the impact of contention. And on the other side, it should be helpful for very dense urban usage. Try using LTE in a large city’s central train station at a busy time an…

>> Last mile for fixed rural wireless broadband seems like the obvious one.

I was under the impression that 5G has shorter range and requires smaller cells. That's exactly the opposite of being better for rural areas.

Re: 5G Just Got Weird

#54

Post by ksec »

elil17 wrote: post #2

As I’ve learned more and more about 5G (which is a nebulous term, really, but what I mean specifically is the planned upcoming releases of LTE 16 and 17, as well as the features of LTE 14 and 15 that users have yet to take advantage of) I’ve become convinced that it’s going to transform how so much of the world is designed. 5G technologies allow for more devices to send more data using less power. This is achieved us…

>releases of LTE 16 and 17

Nitpicking, 3GPP Rel 16 / 17. There is no such thing as LTE 16 :)

But generally yes. 5G is basically a much better 4G.

Re: 5G Just Got Weird

#55

Post by dragonelite »

nobleach wrote: post #25

The idea of vehicle to vehicle communication is a bit frightening. Imagine the obscenities and insults you yell at other drivers, are now able to be communicated directly to the object of ire.

And reading this a smirk came on my face, yo tesla open a comm channel to that car.

Re: 5G Just Got Weird

#56

Post by ksec »

LockAndLol wrote: post #3

> Private Networks > [...]At those scales, 5G could function essentially like Wi-Fi networks. Now that's going to get interesting, I hope. Will we finally see a reliable alternative to 802.11?

For consumer usage, that is still uncertain. Technically it should be better than 802.11ax, but no one has figure out the patents royalty issues for this use case.

Re: 5G Just Got Weird

#57

Post by Someone »

toast0 wrote: post #30
smitty1e wrote: post #20

Earlier quoted context omitted.

In a Periscope anecdote, Scott Adams of Dilbert fame went on about 5G bringing enrichment via eyewear such that profiles of people you meet pop up, and any other VR variation you can imagine. The geek can groove on turning cities into the holodeck on the Enterprise. But one surmises that the appeal of gadget-free living in the country will grow, also. Seems hard to derive a good balance point with "enough" technology…

> 5G bringing enrichment via eyewear such that profiles of people you meet pop up I don't see what 5g brings to this application. This could be a offline application with a one time face/profile database. More probably it would be released as offline face detection, upload face images to the cloud to match and get profiles. 5G has better dataspeeds, but uploading cropped faces over LTE would be fine. Maybe you could…

FTA: “5G networks will be able to use the round-trip time from a single tower to locate a device. That’s because massive MIMO and beamforming allow 5G towers to send precise signals directly to devices”

That could make face identification a lot easier and more reliable. Instead of matching against a database of everyone in the cell tower’s range, it could match against faces known to be in sight.

And yes, the thought of phone providers knowing the fairly precise location of all their subscribers’ phones (and smart watches, and cars, and smart TVs, and fridges, etc) all the time scares me, too.

Re: 5G Just Got Weird

#58

Post by woah »

bdamm wrote: post #27
rsynnott wrote: post #16

Earlier quoted context omitted.

Last mile for fixed rural wireless broadband seems like the obvious one. Today, this is generally done with either LTE or various proprietary things (or if you’re particularly unlucky, satellite). 5G should allow for greater total bandwidth, reducing the impact of contention. And on the other side, it should be helpful for very dense urban usage. Try using LTE in a large city’s central train station at a busy time an…

Starlink is going to dominate this. Cellular can't economically scale out to meet the vast rural coverage. There are still plenty of towns that don't have basic coverage even now, and to think that suddenly they're going to get 5G equipment... seems unlikely. Meanwhile, the Starlink satellites are up and base stations are in testing. Once they approve and start building out their ground stations, it's SpaceX's busine…

IIRC Starlink can handle about 2gbs per 50 sq miles due to frequency bandwidth limitations. That's a few hundred subscribers. It's not going to make an impact in any but the most rural areas.
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