Why 5G and Why Not 10G?

https://news.ycombinator.com/item?id=14401799

by Arthanari • 9 years ago

1 5 9 years ago

news.ycombinator.com

Why mobile networks are developed in phases like 1G after 2 years 2G and then like wise every 2 years next G? What is stopping us from deploying 10G right now?

K900• 9 years ago

"G" stands for "generation".

Arthanari• 9 years ago

Why during the 4G we chose to use the frequency band 2 - 8 GHz and not use 3 - 300 Ghz during deploying 4G network. Is there any recent development that enabled 5G which was unavailable while developing 4G?

Reference: http://www.rfwireless-world.com/Terminology/4G-vs-5G-differe...

Bigrio• 9 years ago

A lot of frequency has recently been reallocated in the US, a large part being the old analog TV frequencies, which have just been auctioned off.

dakevster• 9 years ago

The G stands for generation as stated in a reply above. Each generation represents a standard that it attempts to achieve, which is loosely agreed amongst a bunch of companies (e.g. Ericsson, Nokia and Samsung) in order to lay down a worldwide standard so that phone companies, telcos etc... can align their research and development.

'The goals of 5G technology can be summarized in the following value points:

1,000x increase in capacity Support for 100+ billion connections Up to 10Gbit/s speeds Below 1ms latency'

Specifically the difference in 4G and 5G. 4G was mostly about increasing speeds and bandwidth in terms of increasing efficiency, using MIMO (multiple input and multiple output) strategies, duplexing, carrier aggregation ...

'5G is aiming on providing pervasive connectivity to lay grounds for fast and resilient access to the Internet users, whether they are on a top of a skyscraper or down under a subway station.' As you've alluded to there have been a number of advancements since 4G was released to the public. To implement 5G it will leverage the latest research in the area including beamforming, vRan and bunch more.

So as you can see mobile communications standards are more than just about frequency bands and includes improving technology for end to end communication. Hope that helps!

Ref: http://www.androidauthority.com/4g-and-5g-wireless-how-they-... Ref: https://www.ericsson.com/research-blog/5g/massive-beamformin... Ref: https://insight.nokia.com/how-vran-helping-future-proof-mobi...

JPLeRouzic• 9 years ago

First the "G" thing does not exist at the technical and organizational level in telecoms. The "G" thing is a marketing invention.

You should look at the standard body 3GPP, a consortium of standard bodies, it has releases, not generations and releases come every year or so:

http://www.3gpp.org/specifications/releases

Releases are proposals that are realistic, not only technologically but also economically and that make sense in the telecom ecosystem. For example as you say, one can dream of a 300GHz, 256 antennas phone transmitting data at 3,200 GBits/sec, but actually no phone CPU or hardware would be fast enough to keep up with such a wild beast (they already have difficulties to cope with the current gigabit/sec rates).

In addition the higher frequency you go to escape the spectrum regulation, the greater attenuation there is in the medium, so at 300GHz you can may expect a path of only a few meters.

Why 5G and Why Not 10G?

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