Candidate Standards

A 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.


A/200: ATSC Candidate Standard: Regional Service Availability

Approved 6 March 2019. The CS period ends on 30 September 2019.

This document specifies information describing the availability of broadcast services over time within a broadcast region. Broadcast receivers may use this information to help construct a list of services that may be available to them. Additionally, the information provides a schedule that allows receivers to maintain an up-to-date service list. This document describes how the […]

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A/324: ATSC Candidate Standard: Revision of A/324:2018, Scheduler / Studio to Transmitter Link

Approved 23 May 2019. The CS period ends on 15 November 2019

This standard specifies the protocol on the Studio-to-Transmitter Link (STL) from studio side infrastructure to an SFN of Transmitters. It defines delivery protocols for ALP Transport. The document also defines possible interfaces among the studio infrastructure, for example the interconnection of the ATSC 3.0 Link Layer Protocol (ALP) and a Broadcast Gateway. This document specifies […]

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A/331: ATSC Proposed Standard: Revision of A/331:2017 – Signaling, Delivery, Synchronization, and Error Protection

Approved 21 May 2019. This document is currently at ballot as a Proposed Standard.

This document specifies the technical mechanisms and procedures pertaining to service signaling and IP-based delivery of a variety of ATSC 3.0 services and contents to ATSC 3.0-capable receivers over broadcast, broadband and hybrid broadcast/broadband networks. The service signaling functionality defines the data formats and information components necessary to discover and acquire user services. The IP-based […]

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A/338: ATSC Candidate Standard Revision: Companion Device

Approved 2 January 2019. The CS period ends on 31 July 2019.

This document specifies the communication protocol between an ATSC 3.0 Primary Device (PD) and an ATSC 3.0 Companion Device (CD). In this context, the primary device is the primary receiver and is used to present the primary content. The companion device communicates with the primary device to present related, supplementary content, or even the same […]

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A/360: ATSC Candidate Standard: Revision of ATSC 3.0 Security and Service Protection

Approved 13 March 2019. This document is currently under ballot as a Proposed Standard.

This document is a Candidate Standard Revision of A/360, which specifies the mechanisms for security and service protections in ATSC 3.0 systems. A redline version is available showing proposed changes relative to the current published version of A/360:2018.

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