Can UHD OTT be Complementary to Terrestrial UHD Broadcast?

UHD delivery over terrestrial networks is a challenge in countries where there is no dedicated spectrum allocated for it. In an environment where UHD has to be simulcast with existing SD and HD, only a limited number of channels can be broadcast in UHD. In some cases, they do not have the spectrum for a 24/7 UHD broadcast; only a part-time channel through a time slot system is possible. With the advance of low latency scheme for OTT (i.e., DASH and HLS), it is now possible to mix and match broadcast and OTT without a noticeable difference in delay between the two delivery mechanisms. Broadcasters can offer an UHD experience 24/7 by using other delivery channels for UHD, while HD (1080p60 HDR) is transmitted OTA. This paper will examine OTT UHD delivery and assess which solution is the best from a technical and financial point of view.

Thierry Fautier | Harmonic | San Jose, California, United States