5G Mobile Networks: A Systems Approach
5g.systemsapproach.org
5G Mobile Networks: A Systems Approach
1–10 of 113 posts
Re: 5G Mobile Networks: A Systems Approach
#2I’ve only skimmed through this but I wish there were more books and references written in such a manner. I typically find concepts like these harder to grasp but this lays it out in such a way that makes it easier to grok. Nice work!
Re: 5G Mobile Networks: A Systems Approach
#3I heard the real reason we need 5G is to sell more new phones. Thinner and bigger and better cameras isn’t enough anymore. However, mobile phones running 5G radios will deplete their battery far more rapidly than LTE, right? And that is assuming the 5G phone user is in a major metropolitan area where there is sufficient coverage to begin with.
Re: 5G Mobile Networks: A Systems Approach
#4Don't you think, that 5g is stupid idea, if masts have to by every, 200 - 300? meters, it will be terribly ugly, and how it's suppose to work in farms?
Re: 5G Mobile Networks: A Systems Approach
#5I heard the real reason we need 5G is to sell more new phones. Thinner and bigger and better cameras isn’t enough anymore. However, mobile phones running 5G radios will deplete their battery far more rapidly than LTE, right? And that is assuming the 5G phone user is in a major metropolitan area where there is sufficient coverage to begin with.
> I heard the real reason we need 5G is to sell more new phones.
Yes, and to force change of technical platform. It is harder to persuade carriers to do 4G properly, than to give them a brand new deal. For example we would likely never see VoLTE interoperability.
Another factor is that Chinese companies really want it, because they have most of IP on it, and they don't want to "walk on the minefield" laid by patent trolls when they venture to Western markets.
> However, mobile phones running 5G radios will deplete their battery far more rapidly than LTE, right?
Yes, DSPs inside 5G basebands have more flops and SRAM than the main CPU. Imagine an eighties era supercomputer in your pocket.
Re: 5G Mobile Networks: A Systems Approach
#6I heard the real reason we need 5G is to sell more new phones. Thinner and bigger and better cameras isn’t enough anymore. However, mobile phones running 5G radios will deplete their battery far more rapidly than LTE, right? And that is assuming the 5G phone user is in a major metropolitan area where there is sufficient coverage to begin with.
You bring up some valid points. I traveled to China recently. Phones like iPhone 5 practically don't work there, because the specifications supported by these phones are phased out to such a degree that you're hard pressed to find coverage even in urban areas. I.e. 4G and 5G made the older specs obsolete, so you're obligated to buy a newer device.
Though, I guess it's possible that these bands were never supported in China. If anyone cares to chime in.
Re: 5G Mobile Networks: A Systems Approach
#7Well written, clear and clean presentation, very good material inside for whoever wants to read more about 5G and mobile networks in general. Highly recommended!!!
Re: 5G Mobile Networks: A Systems Approach
#8Don't you think, that 5g is stupid idea, if masts have to by every, 200 - 300? meters, it will be terribly ugly, and how it's suppose to work in farms?
5G doesn't need masts every 200-300m.
There are multiple different frequency bands you can use.
The lowest frequencies are around the same as 4G, so you should need similar numbers of masts to get reasonable coverage.
The highest are around 60GHz - these are pretty much line-of-sight and are likely to be used for shorter-range (but super-high-bandwidth) applications.
Re: 5G Mobile Networks: A Systems Approach
#9Don't you think, that 5g is stupid idea, if masts have to by every, 200 - 300? meters, it will be terribly ugly, and how it's suppose to work in farms?
4G and often 3G don't work in many rural areas. I expect 5G will follow the trend and be concentrated in high population areas, at least to begin with.
I think 5G will mostly be in cities, with antennas on buildings. Masts aren't really practical for the network density required. I imagine as you exit a city you'll have the older infrastructure.
Re: 5G Mobile Networks: A Systems Approach
#10I heard the real reason we need 5G is to sell more new phones. Thinner and bigger and better cameras isn’t enough anymore. However, mobile phones running 5G radios will deplete their battery far more rapidly than LTE, right? And that is assuming the 5G phone user is in a major metropolitan area where there is sufficient coverage to begin with.
5G is designed to be more energy efficient than 4G/LTE and it will be. The design goal was at least three days for smartphones and up to 15 years for IoT devices.
5G NG encoding requires more computational power but the but the transmission is more energy efficient. For operators the ability to put base stations into sleep mode is a big deal.