Adsmart is very widely used ...and is clever
not only technical , signalling I Frames and splicing in the box so no one can see the join ..
But also marketing wise with over 200 demographic flags as well as regionalisation
But back to the topic.
In the future there will not be Broadcast specific emission ,
So the emitted linear channels that exist ..... not many probably
Will be carried by Telco emission like 5G ...
But not necessarily as 5G Broadcast,....
Let break this down .... roughly the same number of people who get DTT
can if they pay get over say 50 Mbit/s broadband NOW in 2020
so most of the tech for delivering Programmes or channels to houses is here
(And as CDNs off set the need for multicast in core .. so it sort of scales)
So you perhaps only need to emit just a few universal access channels ..
The dozen or so PSB channels plus a few e.g some daughter channels,
And a few from say UKTV and Discovery ..... and may be QVC !
Say 20 max .... and it may be that itv and five are not there ..
But these can be unicast on 5G just from the cells where people are watching,
and if there are more than a few switch to broadcast mode in those cells only
All very spectrum efficient and not that much different from streaming different content for many viewers .
Problem is does every Telco provide this service ?
or is there a universal Arqiva-like broadcaster 5 G provider ?
And who pays what ... net neutrality etc ..
At the moment the tech for this is a long way off ..
As 5G Broadcast is mostly to internet of things & downloads etc
And the tech of segmented antennas ( other than Huawei ) is not well developed
And seamless handover etc which very very few other use cases need, has not been described .
So it may be that emitting the same thing from every mast is not the future ..
Just to confuse thing more there are political pressures to maintain
high tower mass coverage for 5G ... Public safety is a major driver ....
But by say 20 years time ..5 years after the current uk contracts run out
It looks very possible !
But the future will be different,
Last edited by Technologist on 21 May 2020 11:10am
mat76, TedJrr and AlfieMulcahy gave kudos