ATSC data broadcast services: protocols, application signaling, buffer models, profiles and levels

The ATSC T3 S13 Working Group on Data Broadcast Services is about to release its Version 1.0 specification. The purpose of the paper is to provide a description of the most important principles making up the specification. More specifically, four components are presented: a collection of uni-directional delivery protocols; a DSM-CC-based application signaling framework; an MPEG-2 transport buffer model and finally; a profile and level-based classification of data services. The functionality provided by each of these components is reviewed.