Re: 5G roadblock: labor

[Andrey Kostin <ankost () podolsk ru>]

Mark Tinka писал 2020-01-04 00:43:
> On 4/Jan/20 00:26, Andrey Kostin wrote:
>
> > Could be true very soon. When supporting cable infrastructure will
> > become too expensive they will cut it in lieu of mobile, like many
> > railways were decomissioned earlier. Must be a local tipping point in
> > each area but it shouldn't be long to wait.
>
> Ummh, and what technology do you think is running the base stations 
> that
> are transmitting at 6G, 7G?
>
> Mark.

I'm talking only about last mile access. Wireless is going the same path 
as fixed access before: from big central facilities to end-user as much 
close as provided services bring enough revenue to cover upgrade costs 
and create some profit. With copper phone lines the situation has 
already turned backward because revenue from services isn't sufficient.
We all know physics and Shennon/Kotelnikov theorema. To get more speed 
more spectrum is needed but more spectrum is available in higher 
frequencies, that have shorter coverage.
Where it's going to stop - I don't know, 6G or 7G or XG ;) Only making 
enough money is needed to go to the next G.
Regarding comparison WiFi and cellular networks, it's clear that WiFi 
won't be able to compete with mobile in terms of scalability. Building 
WiFi in public places like stadiums is already became a job 
specialization, but every such implementation has it's limit. On the 
other hand, 5G as I can see is a big step in this direction in terms of 
spectrum and subscribers management. Mobile networks are developed for 
central control of all the components on all layers, that's why mobile 
standards contain thousands pages. WiFi is a technology for local access 
and to make it more scalable means to go through the same development 
process as mobile networks did. Something can probably be improved but 
even if it succeed it won't be cheap anymore. Currently WiFi is only 
describes single layer of connectivity, and this is why it's cheap, but 
on the next layer (i.e. IPv6 implementation) we can see incompatibility 
between "standardised" WiFi devices. Compatibility on many layers is 
necessary to orchestrate all of them, so not going to happen. Yes, WiFi 
and mobile can be compared in radio, but not in anything else.

Kind regards,
Andrey