Subsessions

• TV 3.0: Brazil’s New Configuration of ATSC 3.0 and How It Differs from Other Regions

  Saturday, April 18 | 11 – 11:20 a.m. | N256

  Skip Pizzi, Luiz Fausto

  Brazil’s next-generation broadcast television system, TV 3.0 (publicly branded as “DTV+”), is a regionally optimized configuration of the ATSC 3.0 suite of standards. It is arguably the ATSC 3.0 system’s most technically advanced implementation to date. Developed to satisfy a comprehensive set of requirements defined in Brazil for its next-generation digital television platform, the TV 3.0 standards mandate numerous features that are optional in other ATSC 3.0 configurations, while excluding certain elements considered mandatory elsewhere. It also introduces additional components not present in earlier configurations. As ATSC 3.0 continues to expand into new markets, TV 3.0’s selective adaptation provides a compelling illustration of how a versatile, modular core standards set can be both constrained and extended to address specific requirements in local technology, regulatory, and market conditions. This paper examines the principal differences among the current U.S., Korean, and Brazilian configurations of ATSC 3.0 technologies. It discusses ATSC’s ongoing efforts as an international Standards Development Organization (SDO) to accommodate these variations by incorporating regionally originated extensions into the ATSC 3.0 core standards as they evolve, thereby fostering greater interoperability while enabling all participating regions to evaluate and potentially benefit from the resulting innovations.

• Enhancing ATSC 3.0 Service Reliability By Combining Broadcast and Broadband Services

  Saturday, April 18 | 11:20 – 11:40 a.m. | N256

  Peter Gogas

  ATSC 3.0 offers broadcasters tools to optimize spectrum usage and tailor service configurations to address the unique requirements of individual markets. While OFDM modulation improves handling of multipath interference over ATSC 1.0's 8-VSB, mountainous terrain and urban environments may still experience reception difficulties that impact service quality. Fallback channels combine the delivery of an ATSC 3.0 service via both broadcast and broadband paths. This simultaneous delivery enables receivers to switch from the OTA-delivered signal to the broadband-delivered version when they encounter reception issues. This paper explores the implementation of fallback channels in ATSC 3.0, discusses deployment scenarios including coverage extension and OTA-to-broadband handoff, and offers recommendations for receiver implementation.

• ATSC3 B2X: A Way Towards O-RAN Compliance for Broadcasting

  Saturday, April 18 | 11:40 a.m. – noon | N256

  David Starks

  O-RAN disaggregation brings a set of transformative advantages to any access technology in terms of scalability, flexibility, and vendor interoperability. The disaggregated architecture enables independent nodes to align with the nature of deployment resulting in a cost-effective high-performance network. The well-defined interfaces between the nodes with structured information elements, facilitate seamless AI integration for intelligent performance optimization, live diagnostics, energy efficiency and network resilience. ATSC 3.0 and (B2X) access technologies are IP-native, and B2X aligns particularly well with O-RAN principles. This B2X solution would leverage the O-RAN ecosystem for optimized hardware with B2X software to customize the broadcast functionality. This paper highlights the benefits of disaggregating B2X infrastructure for broadcasting technologies in alignment with ORAN principles. The paper covers B2X description, Radio Access Network (RAN) architecture, RAN functional blocks, B2X eCPRI function split, B2X Radio types and broadcast specific network functionalities. This paper proposes a flexible software-defined broadcast network that is future proof and scalable, with underlying hardware to support vendor-independent compatibility and maximize availability. This architecture promotes experimentation within limited geographics areas by modifying a few nodes without affecting the overall network performance. B2X disaggregation aims to blend the technological advancement of the wireless infrastructure, with the simplicity and cost-effective nature of a broadcast network. Further information shall be presented to showcase the working and advantages of ORAN-aligned B2X technology.