ATSC Standards Update: New Candidate Standard Published
Since the last issue of The Standard newsletter, a new Candidate Standard has been published on the ATSC web site — Revision of A/324:2024-04, “Scheduler / Studio to Transmitter Link.” This document was elevated to Candidate Standard status by TG3 in a ballot that closed on April 10.
A/324 specifies the protocol of the studio-to-transmitter link (STL) from studio side infrastructure to a single frequency network (SFN) of transmitters. It defines delivery protocols for ATSC 3.0 Link Layer Protocol (ALP) transport. The document also defines possible interfaces among the studio infrastructure, for example the interconnection of the ALP and a broadcast gateway. A/324 specifies certain constraints on the scheduling of content and signaling on the physical layer. The described scheduling process enables preamble generation and emission time management. It specifies certain aspects of transmitter behavior and certain parameters of transmitter operation.
The A/324 revision Candidate Standard may be updated from time to time by the originating specialist group, TG3/S32. The Candidate Standard period which extends to December 31, may be shortened or extended by TG3.
An ATSC Candidate Standard is a document that has received significant review within a specialist group. Advancement of a document to Candidate Standard is an explicit call to those outside of the related specialist group for implementation and technical feedback. This is the phase at which the specialist group is responsible for formally acquiring that experience or at least defining the expectations of implementation.
Posted in ATSC News
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