A/337:2018, “Application Signaling”

Approved 2 January 2018

This document specifies mechanisms for signaling the properties of applications, including their lifecycle states, and also mechanisms for delivering activation notifications synchronized with a time base, so that the actions of applications can be synchronized accordingly. Accompanying schema is also provided.

Section 4.3 of this document includes descriptions on the DWD (Distribution Window Description). Similar descriptions appear in A/331: ATSC Candidate Standard Revision: Signaling, Delivery, Synchronization, and Error Protection, Section 7.1.8. Implementers may wish to review the proposed changes contained in the A/331 Candidate Standard. ATSC is in the process of moving the DWD topic from A/337 to A/331.

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