ATSC 3.0

ATSC 3.0 is a major version of the ATSC standards and was created by the Advanced Television Systems Committee (ATSC). ATSC 3.0 will support mobile television, 3D television, 4K UHD, high dynamic range (HDR), high frame rate (HFR), and wide color gamut (WCG). ATSC 3.0 comprises around 20 standards covering different aspects of the system and in total will have over 1,000 pages of documentation. South Korean broadcasters plan to begin ATSC 3.0 broadcasts in February 2017.

ATSC 3.0 uses a bootstrap signal which allows a receiver to discover and identify the signals that are being transmitted. The bootstrap signal has a fixed configuration that can allow for new signal types to be used in the future.

ATSC 3.0 uses a physical layer that is based on orthogonal frequency-division multiplexing (OFDM) modulation with low-density parity-check code (LDPC) FEC codes. With a 6 MHz channel the bit rate can vary from 1 Mbit/s to 57 Mbit/s depending on the parameters that are used. ATSC 3.0 can have up to 4 physical layer pipes (PLP) in a channel with different robustness levels used for each PLP. An example of how PLP can be used would be a channel that delivers HD video over a robust PLP and enhances the video to UHD with Scalable Video Coding over a higher bitrate PLP.

ATSC 3.0 supports Dolby AC-4 and MPEG-H 3D Audio.

ATSC 3.0 supports three video formats which are Legacy SD Video, Interlaced HD Video, and Progressive Video. Legacy SD Video and Interlaced HD Video support frame rates up to 60 fps and can only use the Rec. 709 color space. Legacy SD Video and Interlaced HD Video are included for compatibility with existing content and can't use HDR, HFR, or WCG.

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