This work presents eight demonstrators and one showcase developed within the 5G-Xcast project. They experimentally demonstrate and validate key technical enablers for the future of media delivery, associated with multicast and broadcast communication capabilities in 5 th Generation (5G). In 5G-Xcast, three existing testbeds: IRT in Munich (Germany), 5GIC in Surrey (UK), and TUAS in Turku (Finland), have been developed into 5G broadcast and multicast testing networks, which enables us to demonstrate our vision of a converged 5G infrastructure with fixed and mobile accesses and terrestrial broadcast, delivering immersive audiovisual media content. Built upon the improved testing networks, the demonstrators and showcase developed in 5G-Xcast show the impact of the technology developed in the project. Our demonstrations predominantly cover use cases belonging to two verticals: Media & Entertainment and Public Warning, which are future 5G scenarios relevant to multicast and broadcast delivery. In this paper, we present the development of these demonstrators, the showcase, and the testbeds. We also provide key findings from the experiments and demonstrations, which not only validate the technical solutions developed in the project, but also illustrate the potential technical impact of these solutions for broadcasters, content providers, operators, and other industries interested in the future immersive media delivery.

Enhanced TV (enTV) features introduced into Long Term Evolution (LTE) Evolved Multimedia Broadcast/Multicast Service (eMBMS) have attracted TV broadcasters to offer their services also over eMBMS to enable service continuity and greater coverage. Considering the usual service quality offered by these content providers, an important question becomes how to deliver the offered services also over eMBMS while achieving an acceptable level of quality. In this paper, the results of an investigation that was performed for ATSC 3.0 Dynamic Adaptive Streaming over HTTP (DASH) TV broadcasting service are reported. While adequate service quality was achieved through LTE carrier aggregation (CA), additional error robustness schemes, and a flexible service configuration framework, crucial input for 5G design considerations, are derived.

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