British Touring Car Championship test runs Vista's 5G Create project for in-stadium broadcast feeds By Ann-Marie Corvin
Friday, September 17, 2021 - 09:37
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The Vista Project teamed with the British Touring Car Championship (BTCC) to integrate into a 5G infrastructure to offer a high-quality in-stadium broadcast feed
The second phase of the UK government-backed 5G Create project Video In Stadia Technical Architecture (Vista) was unveiled at the O2 Arena in London on Wednesday (15 September), showing footage from the British Touring Car Championship (BTCC) being integrated into a 5G infrastructure to offer a high-quality in-stadium broadcast feed.
Vista which kicked off with a feasibility study earlier this year aims to demonstrate how enhanced interactive viewing experiences can be delivered direct to devices, using 5G broadcast technology at live entertainment venues.
Run by the Digital Television Group (DTG), the £2.3 million project, which has received £1.3 million of support from the Department for Digital, Culture, Media & Sport (DCMS), comprises a ten company-strong consortium that includes network operator O2, innovation agency Digital Catapult, Rohde & Schwarz, Global Wireless Solutions and Imaginary Pictures.
The second stage of the project focused on a demonstration at the O2's Blueroom venue in Greenwich, using motor racing footage provided by BTCC.
Tour car test run
While the BTCC is given widespread exposure on the ITV network in the UK, organiser TOCA has been looking at ways to add value trackside for its legion of die hard fans; around 380,000 of whom attend the championship's events in an average year.
As Kevin Zemrowsky, co founder of Imaginary Pictures, which supplied the production and live camera expertise for the demo, explains: the organisation wants to give fans more of a sense of what's happening once the cars leave the pit lane.
Right now on-site spectators can see the cars lining up at the start line, but then they all drive off and you might not see the cars again until they come back but then that might be in a different order, or there might be fewer drivers, he says.
While television viewers are supplied with a constant feed of information, the venues tend to rely on a couple of screens, which is a bit of a one-size-fits-all solution, he adds
Sam Riches, technical officer at the BTCC, adds that TOCA had already been searching for ways to exploit 5G to make onsite viewing more seamless, delivering extra information to devices, allowing them to see replays, even jumping from driver-to-driver inside the car, or from different angles. However utilising such 5G cellular network capacity is expensive.
He says: At the moment we're limited in the number of on boards that we can physically get off the cars because of the cost of the infrastructure required to do it.
Alex Buchan, DTG strategic technologist and lead, adds that providing enough network capacity to support even a basic service let alone provide premium video is another challenge for organisers and venues.
The beautiful thing about FeMBMS is that you can put one or two antenna in a stadium and it is enough to cover the whole venue. That makes it particular effective in stadiums but also for other events too
Vista's objective is to offer a more efficient use of network resources by eschewing the standard unicast delivery model used by cellular networks in favour of an internationally-standardised multicast broadcast, multicast solution, FeMBMS, the 17th incarnation of which is set to be released for 5G next year.
As David Owens, head of technical trials at O2, which is acting as the technical lead on the project, explains: One of the complicated things with stadium solutions is that the more people you have involved in the stadium the more base stations you need and the more cost that incurs.
The beautiful thing about FeMBMS is that you can put one or two antenna in a stadium and it is enough to cover the whole venue. That makes it particular effective in stadiums but also for other events too.
Network deployment
According to Owens, the easiest way to converge 5G and broadcast is to create an overlay over the top of the network So you can still use your 5G network infrastructure to manage and control that.
For the Vista demo, Digital Catapult provided the 5G test bed network while Rohde & Schwarz provided the equipment, systems and expertise for a multicast/broadcast overlay network based on FeMBMS.
Footage taken from a BTCC race on the Thruxton circuit a couple of weeks earlier, which captured all the streams that the sport would normally cover for the broadcast, was passed over to the Vista team to transcode.
According to Zemrowsky, over the course of the project the team tested a number of different ways of getting the content into the system included taking direct IP feeds from the cameras.
However, a necessary processing step, containerised controlling in the cloud, was required before transmission over FeMBMS. Recently joined consortium member Ateme provided the encoding system that packaged the camera feeds into the correct formats for broadcast distribution while Ori Industries provided the Multi-access Edge Compute (MEC) platform that enables encoding for live sports streaming services on 5G networks.
Buchan explains: The MEC solution removes the need for dedicated hardware at venues to be able to encode the video feeds. You could have the MEC solution provided by Ori, which would essentially have the Ateme encoding solution as an application on a phone that could be started up and shut down as needed.
This could mean for venues that are not in use regularly or that cater for smaller/not as well known types of events they could deploy this on generic hardware that could also be used for other things o
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British Touring Car Championship test runs Vista's 5G Create project for in-stadium broadcast feeds By Ann-Marie Corvin 
