When "4G" was initially commercialized, one could have claimed it has No "Material Difference Between 3G and 4G". HSPA(+) was just faster 3G, already reaching lower end of 4G bandwidth requirement, minimally qualifiable as 4G. But has 4G/LTE eventually turned out to be "one generation" better than 3G? Hell yeah. Same thing here for 4G-5G transition. The real deal is when milimeter wave got massively deployed and commercialized.
5G's main application around the world will be more capacity, a good thing for telcos
Or companies that want to break the residential broadband monopoly in a local area. Personally, I'm counting on TMO to kick Comcast's ass in my town. 5G would be a complete success if that happens.
I've heard that 5G will be especially beneficial to rural areas, where it will have the bandwidth, speed, and coverage capability to replace broadband, DSL, and satellite. Can someone with industry knowledge confirm whether this is true?
Author Here to clarify The article is comparing today's LTE and 5G, deploying in 2018-2019. Is there really a big difference to the consumer between 100-400 meg real speeds (LTE) and 5G at 200 -600 meg mostly? In what application? Latency in today's equipment from Ericsson and Huawei for either is 5-15 milliseconds.
Only 10-20% of the "5G" will be the 1 gig millimeter wave until after 2020. Even then, what's the practical difference for most people between 150 megabits and 900 megabits?
Some details: Most LTE going in today is 100-400 meg real with a decent connection, 600-900 meg peak. (3 or 4 CA, 4x4 MIMO.) 2) 80-90% of the "5G" in the world through 2020 will be midband 3.5 GHz 200-600 meg. Only a small fraction will be the true 1 gig millimeter wave. 3) Latency on either most likely 5-15 milliseconds. (The difference in Ericsson equipment is 1-2 ms.)
email me, daveb@dslprime.com for references to primary sources. Don't believe the hype. 5G millimeter wave is planned for 1-4 ms URLLC, but not until 2022-2025. It can go 10-20 gigabits in the lab today, but I don't know any carrier designing for more than 1 gig to a user in the next 5 years.
It's excepted for South Korea, Japan and China take the lead in adoption and applications. US customers might not be not priority, because US consumers have have very low bandwidth caps, lets wait and see.
I think many people underestimate the ambition of 5G and assume that 5G is just 4G with more bandwidth.
Big advantage of 5G over 4G is that it can _also_ use unlicensed spectrum. This enables more use cases like enhanced mobile broadbands, device-to-device mesh networks, private 5G networks, etc.
5G is designed to use wifi when available. It's more than just new cellular radio interface and antennas (NR part). 5G connection can use 5G/LTE/WiFi simultaneously. Gibabit LTE can be used as an anchor for 5G functionality even when 5G network is not available. In this sense 5G NR is not a priority. 5G NR first arrives in the most congested areas to increase the bandwidth. If you have only LTE, you may not get as much as those with 5G phones in some concerts and crowded events.
Among the first uses of 5G NG are base stations companies build for themselves. Like networks in factories and other locations using unlicensed 60 GHz band. It looks like Chinese are jumping into industrial use of 5G very rapidly. They are already ahead of the schedule. Consumer applications will follow.
Innovation is great. But with more carriers throttling after a few GBs, there's no customer value yet. What's the value in getting 1Gbs when my plan throttles after 5GB. That's 40 seconds before I'd be throttled for the rest of the month.
I thought the point of "Long Term Evolution (LTE)" was not to have this "next generation" thing all over again!
> Connected cars are already on the road, using lidar & radar, not the phone network. Xu points out, āeven today we have the technology that can support autonomous drivingā.
This point is silly.
Lidar and radar don't replace high bandwidth internet on a self-driving car. The beefy super computer in the trunk is trying to replace the cloud compute processing that is inaccessible because there's not enough low latency, reliable bandwidth available to stream a dozen camera, lidar, radar, and IR feeds over the internet for remote processing.
Self driving right now requires either precision 3D mapping and local processing of a huge amount of data from multiple sources OR highway-only limitations where there are fewer objects to track that all move in predictable ways. Both of these would be easier and produce better results with more bandwidth and lower latency.
5G may not be mature enough to make a difference today, but that doesn't mean connected and self-driving cars aren't a legitimate use case for the technology and its stated goals.
I was a little disappointed after looking at the NR spec, it looks like 5G is mostly a sample rate multiplier on the 30.72MHz clock. It's still OFDM 8x8 MIMO. I'm sure there is some other additions that take advantage/optimize that additional bandwidth, but it doesn't have the same excitement as going from CDMA to OFDM did.
This reminds me of when Verizon and Time Warner said their customers don't want gigabit internet.
If I understand correctly, the cellular companies do some hairy, hairy manipulations of TCP in order to preserve data connections across cell towers.
Do we need a better protocol for cell data and would this improve throughput and latency?
I was kind of expecting someone will trim in with proper information and Engineering prospective. But nearly 150 Comments into it it seems there are lots of misinformation.
Yes, 5G, which includes 4.9G, or 3GPP Rel 13, 14, 15, will provides lots more Capacity. I see many saying this is only good for telcos, and 5G will be the same once everyone moved over. Which is so far from truth.
Your current LTE speed is limited by Telcos capacity. So if you have less people in your area sharing your bandwith, you are likely to get much higher speed. So If Telcos improves its capacity, it also means you get higher speed when you use it since it is less contention. This is of course assuming the demand stay constant.
And some comments refer to less congested in 5G being the reason, once everyone moves to 5G it will be the same. This is again false. 5G is more like an 4G extension, you really dont switch to 5G, at least not in the 3G to 4G way.
In many developed countries, Smartphone Users has already hit a plateau. Growth is going to be slow. Massive MIMO, in 4.9G or what ever they decide to call it, ( likely 5G ) already provides 3x capacity in FDD-LTE environment, and up to 10x in TDD-LTE. So the network, all of a sudden is capable of supporting 3x to 10x more users. As we have stated before there aren't that much user growth anymore, so as a user you now get 3x speed up when Massive MIMO is deployed in Handset and Cell tower. ( Actually this is over simplify and it is more then that )
So you ask but that is assuming user are using the same amount of Data. Most of the Data we use are actually Video, this is especially true on Mobile. We have HEVC, I doubt it will cut the Data required, but you will have a much better quality streaming.
All this is 4.9G with Massive MIMO, This is excluding additional capacity with Small Cell, LTE- LAA. And 5G is actually designed with Massive MIMO in mind, even more efficient, additional spectrum, even more antenna in Massive MIMO. It is not too hard to imagine by 2025 we have at least 20x the Capacity then we have today.
Now can you imagine you spend 20x the time then today watching Video content in 2025?
Which is one reason why many telcos around the world are already switching to unlimited*, or priority based access after certain amount of data. And assuming no additional killer apps for Data usage, Telcos will likely have to consolidate even further to may be only 3 per region.
What frequency band will 5G use?
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> IoT will rarely require speeds more than 100's of megabits. Most actually is kilobits.
This reminds me this famous quote by Bill Gates: "640 kB ought to be enough for anybody"
> 5G's main application around the world will be more capacity, a good thing for telcos
This is important for consumers. When did you last get 100Mbit+ speeds with 4G? In real world scenarios, the number of people in a cell (due to limited spectrum bandwidth) limits 4G speeds, not protocol maximums. My understanding of 5G is that bandwidth can be used much more efficiently (both by being able to allocate less in idle situations and by spatial multiplexing), benefitting telcos and customers both.