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What 5G Will Mean for You

nytimes.com

31–40 of 77 posts

Re: What 5G Will Mean for You

#31

> Driverless cars with extremely fast response times Seems like relying on low network latency for critical safety features is designing a fundamentally flawed system. Is this really how driverless cars are being made or is the author just pulling things from his ass

Surely it's the latter. Driverless cars that rely on Internet access would not be feasible, for obvious reasons. Driverless cars will likely eventually communicate via some peer-to-peer wireless technology, but I would assume that would use a different set of protocols than our mobile phones do.

That is my thought as well. Ad-hoc networks, specifically mesh, have always stood out as the correct technology for this problem.

Re: What 5G Will Mean for You

#32
post #11

Personally, I'm just hoping that 3G will eventually make it to England. That seems more realistic, though I don't doubt that the Bay Area will be happily basking in this 5G niceness by the time it happens. I just got back from 3 months in Southeast Asia, and it's just baffling to me how I could get fast data to my phone in virtually unlimited quantities, out in the sticks of rural Cambodia, for five dollars. But comi…

Curious - which town are you in? I have 4g and 200mbs-1 fttp and I live in a field in the middle of suffolk.

There are people in London who are living in an edge only area and the closest they get to fiber is docsis over a few hundred meters.

Re: What 5G Will Mean for You

#34
It won't matter much because there's not much you could do with 5G that you can't do with 3/4G. Internet connection speed is rarely a bottleneck for casual usage now (browsing, watching steaming videos, chatting etc.) For IoT it won't matter too, because for most telemetry/control means even <3G was ok and WiFi/Bluetooth/ZigBee is still preferable solution as all these xG modems cost way too much. To sum up, unless we start steaming virtual reality, I really don't see many benefits of 5G for few/several years to come.

Re: What 5G Will Mean for You

#35
post #17

It seems like it will just mean you can hit your data cap faster.

Agreed. I've got 4G at the moment and it's plenty fast, since I can only use it for moderate surfing/etc since I'd otherwise hit my monthly cap in a week. If I had super fast 5G, I could accidentally burn through my cap in a day.

I had a prepaid Telstra SIM in Australia. I speedtested 130 MBit/s on their LTE network. On prepaid, data costs a bit over AU$8/GB. So you can burn through 8 dollars in a minute.

Re: What 5G Will Mean for You

#36
post #24
post #10

Earlier quoted context omitted.

>They're trying to come up with sub specifications to encompass more types of network use cases rather than thinking "xG is for cellular phones" it'll be more like 5Gx is spectrum/protocol for home internet, 5Gy is the spectrum/protocol the phone uses. Although from a marketing prospective this will sound like "Bring 5G to your home." Intermingling the data and transport layers initially strikes me as a bad thing. Wh…

That the data and transport layers are almost always intermingled, because the "OSI network model" you were taught about in school is basically a lie. (At least inasmuch as it is claimed to describe anything in the real world. As a source of vocabulary, it's at least OK, though it does suffer from people using numbers where I would rather they used the names of the layers. Much like RAID terminology is still impenetr…

    data and transport layers are almost always intermingled
In what sense other than NATing, which has been a stop-gap measure to deal with IPv4 address shortage? TCP/UDP sit on top of the network layer, not the data (link) layer. And the two main requirements that TCP/UDP make of the network layer is (1) that all network layer connected devices (interfaces) have a unique address and (2) you can send packets between any two network connected devices (interfaces) in a best-effort way.

What the transport layer adds on top of that is

- multiplexing of network layer addresses (TCP and UDP use port numbers for this) so multiple processes can share a single network layer connection and

- error detection/correction (TCP only) to transform the unreliable (best effort) service the network layer offers into a reliable service.

- Streaming (TCP only): the sender's data stream that a TCP client creates is split into packets and later reassembled.

I think it's a beautiful separation of concerns.

Re: What 5G Will Mean for You

#37

> Driverless cars with extremely fast response times Seems like relying on low network latency for critical safety features is designing a fundamentally flawed system. Is this really how driverless cars are being made or is the author just pulling things from his ass

Driverless cars need detailed and up-to-date map information. After you enter a destination it will need to download and/or update that information.

It wouldn't be a safety issue, though. The car would not start driving to the destination until it had everything it needed.

Re: What 5G Will Mean for You

#38
The development of the 5g standard and it's deployment is something to look forward to, but one issue that remains is data caps.

We need to remember that the vast majority of people access the Internet primarily through mobile devices and broadband penetration is very low in developing nations.

So even though people have access to high speed internet though mobile networks, data caps act as a hindrance to utilize the service effectively.

The issue that needs to be addressed immediately is making unlimited data available at low costs.

Re: What 5G Will Mean for You

#39
post #2

> What 5G Will Mean for You Absolutely nothing for the next 20 years, seeing how my carrier just started deploying LTE (50 MBit, that is, not 300 MBit) at eye-watering costs ($20 a month for 5 gigabytes!).

Where can you LTE for get $20 a month? That is amazingly cheap.

Re: What 5G Will Mean for You

#40
post #11

Earlier quoted context omitted.

Curious - which town are you in? I have 4g and 200mbs-1 fttp and I live in a field in the middle of suffolk.

The North. Kendal, specifically. One day Virgin will route a cable our way, and life will be good. Until then we're stuck with BT and their 200 year old copper (and a few cell towers without enough power to drill through the stone buildings in town, let alone the little hills around it).

No 3G, as you say, but Ofcom's mobile coverage checker shows Kendal bathed in 4G EE coverage, with a good chance of good indoor reception. (And if not, a 4G router with decent outdoor antenna should help enormously.)

Or there's always satellite...?

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