More ATSC 3.0 Standardization Steps Completed

The US-based Advanced Television Systems Committee standardized three more components of ATSC 3.0, the next-generation television system expected to transform the ability of broadcasters to deliver mobile, interactivity and higher quality content.

The Advanced Television Systems Committee (ATSC) members ratified the Link Layer Protocol and Audio and Video Watermark Emission standards to be part of the ATSC 3.0 suite of 20 standards and recommended practices. Three new Proposed Standards and two new Candidate Standards are also in progress within the technical subcommittee charged with developing and documenting ATSC 3.0.

The details

The Link Layer Protocol Standard (A/330) defines the layer between the physical layer and the network layer. The link layer transports the data from the network layer to the physical layer at the sending side and transports the data from the physical layer to the network layer at the receiving side. The ATSC Link-Layer Protocol also optimizes the proportion of useful data in the ATSC 3.0 Physical Layer, by means of efficient encapsulation and overhead reduction mechanisms for IP and MPEG-2 TS transport. Extensible “headroom” for future use is also provided.

The Audio Watermark Emission Standard (A/334) specifies the audio watermark encoding for use with systems conforming to the ATSC 3.0 family of specifications. This standard specifies the format in which the audio watermark resides in an uncompressed audio signal.

The Video Watermark Emission Standard (A/335) specifies the emission format for video watermarks used in ATSC 3.0 broadcasts. The video watermark technology provides the capability to robustly embed ancillary data in the transmitted pixels of a video signal. It provides a data path for its ancillary data payload that can readily survive changes in video compression data rate, transcoding to other video compression codecs, and delivery over legacy consumer HDMI interfaces.

More work in progress

ATSC Technology Group 3 (TG3) members have begun voting to elevate three ATSC Candidate Standards to Proposed Standard status (the final step before ATSC member approval).

The standards include the A/322 Service Announcement, which defines announcement of services in an ATSC 3.0 broadcast, A/333 Service Usage Reporting, which defines service usage reporting for ATSC 3.0; and A/343 Captions and Subtitles, which defines the required technology for closed caption and subtitle tracks over ROUTE-DASH and MPEG Media Transport.

TG3 members also are voting to elevate the A/360 Security draft document to Candidate Standard status. A/360 specifies the mechanisms for security and service protections in ATSC 3.0 systems. The A/324 Scheduler and Studio-to-Transmitter Link is now a Candidate Standard. Among other things, it specifies the interface protocol and operation parameters for Single Frequency Network transmitters.

You might also like...

The Meaning Of Metadata

Metadata is increasingly used to automate media management, from creation and acquisition to increasingly granular delivery channels and everything in-between. There’s nothing much new about metadata—it predated digital media by decades—but it is poised to become pivotal in …

The Future Of Sports Media & Fan Engagement

This is a story about the COO of a media business, that shines a light on the thinking underway at the leading edge of the media industry, where the balance shift from Linear Broadcasting to D2C Streaming is firmly…

The Streaming Tsunami: The Necessary Evolution Of The TV (From A Broadcaster Perspective) - Part 3

Here we conclude our discussion of the immense challenges presented by an ecosystem of end user devices that is already at 13K + devices and growing continually.

FEMA Experimenting At IPAWS TSSF

When government agencies get involved, prepare for new acronyms.

(Re)bundling Is Coming – OTT Is Retransforming The Media Industry

OTT is driving the next great rebundle. After years of D2C streaming, unbundling and fragmentation, we are now reaching a stage where we have so many D2C Apps that consumers are looking for simplicity and convenience again.