ATSC 3.0, also known as NextGen TV, is a digital standard for encoding and delivery of
terrestrial TV in the US.
ATSC 3.0 provides increased bandwith and supports 4K Ultra High Definition (UHD) video and
enhanced audio. It is a hybrid system designed to be transmitted over the air or via broadband.
ATSC 3.0 is being deployed in many locations in the US currently and this process
is likely to continue for several years.
The most significant features of ATSC 3.0 include:
- The ability to support 4K UHD (3,840 x 2,160) and higher video resolutions
- Immersive audio including Dolby AC-4.
- Multiple channels with the same bandwidth (Multiple Physical Layer Pipes).
- Greatly improved signal robustness especially in built-up areas and with mobile
- A return path via the internet enables a variety of interactive applications.
- Delivery of ATSC Non Real Time (NRT) file-based content. NRT video can be used
for targetted advertising and pushed VOD (subscription video).
The Commercial Benefits
ATSC 3.0 provides the broadcaster with several new methods of revenue generation
- Additional (or higher) fees for interactive and targeted advertising.
- Subscription and Pay Per View (PPV) fees for NRT downloads.
- Revenues from political campaigns, including sponsored voting and polling and
- Direct product sales originated from an interactive application.
- Fees generated from the sale of aggregated audience measurement data.
- DVB-T2 based OFDM modulation with up to 57Mbps in a 6MHz channel (25Mbps typical).
- DVB-T2 style Multiple Physical Layer Pipes (PLP) which allow carriage
of multiple services (e.g. UHD, SD, mobile and NRT).
- Each PLP allows different combinations of error correction,
modulation and coding rate.
Programs sent as transport stream over IP; encoded with ISO BMFF
streamed using MPEG Multimedia Transport (MMT) or MPEG-DASH
using the Real Time Object Delivery over Unidirectional Transport (ROUTE).
Low Level Signaling (LLS) information is carried via IP packets with a well known
address/port. The Service List Table (SLT) is specified as the LLS;
its' functionality is similar to that of the program association table (PAT) of MPEG-2.
ATSC 3.0 Runtime Environment supporting interactive applications consisting
ATSC 3.0 Studio Transmitter Link (STL) stream interface to ATSC 3.0 SFN transmitters.
Extend coverage using a Single Frequency Network (SFN).