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FEATURE

“We need 5G for throughput and latency.” DARKO RATKAJ

5G networks. He explains: “There will still be cases for 4G, and for satellite news gathering. It is a combination of the different systems rather than a pure 5G solution. As Darko was underlying with event production, you will not go through the public network over mobile operators. It will be more like a closed user group using the 5G standard and its frequencies.” Referencing the marketing hype that said 5G will arrive quickly and everywhere, he adds: “This is not going to happen instantly. Even in the long term I do not expect that outside of cities there will be big penetration in terms of 5G broadband in regional infrastructures, because it is not economically sustainable.” Next up Arcidiacono considers viewer distribution done in Unicast using any cellular approach with 5G. “This is very difficult to imagine for on one side the physical reasons and on the other side economical reasons. A combination of the two is very difficult to make compatible. If you wished to cover large areas you have to put in a large number of base stations, multiple more than used for 4G.” Any Unicast basis would see a nation like Germany or France requiring hundreds of thousands of base stations and maybe millions to hit 98 per cent of the population. “You end up fighting against the laws of physics. The solution we have proposed and are working on now is much wider in potential. You combine an orchestrated network layer, which is the broadband cellular layer, w w w. t e d i a l . c o m

and then you build an overlay which is what we call 5G broadcast, and from high towers you can cover large areas in terms of kilometres,” says Arcidiacono. “The investment is much reduced and the advantage for the telcos is big because they will not need to dimension their networks, and if you want to go into the sea and into the air you can add another 5G layer at the satellite level. This will give you the full 100 per cent coverage of a territory. “What we are not considering in all the discussions about 5G is the fact that yes we have population, but yes we have to cover territories,” he adds. ANY FOLLOW UP TO 5G-XCAST? Before 5G impacts hugely on the industry, it may have switched entirely to an Opex mentality and be looking for better faster services from 5G, but how far are we along that road? “Opex thinking is happening but more in production than distribution. The whole industry is moving towards IP solutions because they give flexibility and the potential for doing more with the same budgets, but very few broadcasters have yet managed to move completely to IP. At the moment everyone is sort of riding two horses,” says Ratkaj. Arcidiacono proposed the DVB IP standard back in 1995, but even he says, “In the IP world there is not a perfect solution for everything.” 5G-Xcast has taken on a wider life since Barcelona in terms of what it previews, so are there any possibilities of

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TVB Europe 63 April 2019  

Get ready, coz here is come - 5G

TVB Europe 63 April 2019  

Get ready, coz here is come - 5G