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What are the key features and differences of LTE Broadcast and 5G Broadcast technologies?

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LTE Broadcast and 5G Broadcast are two technologies that enable efficient and scalable delivery of live and on-demand video and audio content over cellular networks. They use multicast transmission, which means that the same data stream is sent to multiple receivers simultaneously, saving bandwidth and network resources. But what are the key features and differences of these technologies, and how can they benefit users and providers of media services? In this article, we will explore the main aspects of LTE Broadcast and 5G Broadcast, and compare their performance, capabilities, and use cases.

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Mark Aitken

SVP at Sinclair Broadcast Group/President of ONE Media

1 LTE Broadcast overview

LTE Broadcast, also known as evolved Multimedia Broadcast Multicast Service (eMBMS), is a feature of the 4G LTE standard that allows operators to allocate a portion of their spectrum for multicast delivery of content. It can be used for live events, such as sports, concerts, or news, as well as for pre-recorded or cached content, such as software updates, podcasts, or advertisements. LTE Broadcast can improve the user experience by reducing buffering, congestion, and latency, and can also reduce the cost and complexity of content delivery for operators and service providers.

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Luis Felipe Ariza Vesga

PhD in telecommunications | RF Microelectronics | PHY & MAC/Open RAN/NTN/Cloud-Native/IoT/5G broadcast/Private networks/+G/Metaverse/AI/QC | Speaker | Organizer: Colombia OpenInfra User Group | Open-Source Evangelist
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The article must be renamed, it should be: What are the key features and differences of LTE-based 5G Broadcast and Multicast Broadcast Services (MBS) technologies?

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2 5G Broadcast overview

5G Broadcast is a technology that leverages the 5G New Radio (NR) standard to enable multicast transmission of content over 5G networks. It is based on the 3GPP Release 16 specification, which defines a new mode of operation called FeMBMS (Further evolved Multimedia Broadcast Multicast Service). Unlike LTE Broadcast, which requires a dedicated spectrum allocation, 5G Broadcast can use any available spectrum, including the low, mid, and high bands. 5G Broadcast can also support higher data rates, wider coverage, and more flexible configuration options than LTE Broadcast.

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Mark Aitken

SVP at Sinclair Broadcast Group/President of ONE Media
(已编辑)
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5G Broadcast is a 4G LTE waveform. Release 14 in 2017 was an enhancement to eMBMS and was thus called Further evolved Multimedia Broadcast Multicast Service (FeMBMS) with up to 100% of the capacity dedicated to multicast services. After Release 15, 3GPP labeled its framework – the Evolved Packet Core – which converged voice and data including FeMBMS as 5G Broadcast. Release 16 provides for larger distances between transmit sites (>100km/60miles) as required for HPHT implementations. Release 17 provides demodulator support for spacing of different sized channels (6, 7, or 8 MHz). Release 18 will provide specifications for the 470-694/698 MHz band. But, sadly, if you are looking for a highly mobile capability, ATSC 3.0 is the correct answer.

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Gregory T. Frasca???

Go To Market Execution
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Great article. Who thinks that the densification of small cells will be required to unlock these benefits when in a metro environment? Could ATSC 3.0 be utilized to compliment 5G Broadcast and where do you see the two Broadcast technologies competing head to head?

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3 Key differences between LTE Broadcast and 5G Broadcast

One of the main differences between LTE Broadcast and 5G Broadcast is the level of integration with the network core. LTE Broadcast requires a specific network architecture, with dedicated servers, gateways, and interfaces to enable multicast delivery. 5G Broadcast, on the other hand, can use the same network core as unicast transmission, with minimal modifications. This means that 5G Broadcast can be more easily deployed and managed by operators, and can also coexist with other 5G services and applications.

Another difference between LTE Broadcast and 5G Broadcast is the support for different types of devices and receivers. LTE Broadcast requires devices to have a specific chipset and software that can decode the multicast signal. 5G Broadcast, however, can use a more generic receiver that can adapt to different signal formats and modulation schemes. This means that 5G Broadcast can reach a wider range of devices, including smartphones, tablets, laptops, smart TVs, and even cars.

A third difference between LTE Broadcast and 5G Broadcast is the potential for interactivity and personalization. LTE Broadcast is mainly a one-way transmission, with limited feedback and control from the users. 5G Broadcast, however, can enable more interactive and personalized experiences, by combining multicast and unicast transmission. For example, users can switch between different camera angles, audio tracks, or subtitles, or access additional information or services related to the content.

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Mark Aitken

SVP at Sinclair Broadcast Group/President of ONE Media
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Comparison – 5G Broadcast vs. ATSC 3.0 There has been a fair amount of hype indicating that that these two technologies are roughly equivalent and that 5G Broadcast has the upper hand given it is a 3GPP standard. They are roughly equivalent in that they both use IP transport broadcast/one-to-many wireless distribution technologies using the same modulation scheme (orthogonal frequency division multiplexing – OFDM), but the important similarities end there. The implied notion that, because 5G Broadcast is a 3GPP standard and in phones today, it somehow magically opens the market to hundreds of millions of devices compatible with 5G wireless reception is incredulous at best. ATSC 3.0 - the TRUE 5G Broadcast Standard.

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4 Benefits of LTE Broadcast and 5G Broadcast

LTE Broadcast and 5G Broadcast offer numerous advantages for users and providers of media services, especially in scenarios where a large number of people are accessing the same content in the same area. These technologies can reduce network load and congestion, providing a smooth and consistent delivery of content without interruptions, buffering, or delays. Additionally, they enable users to access high-quality content with low latency and high reliability. Furthermore, they lower the cost and complexity of content delivery for operators and service providers by minimizing the need for additional infrastructure, bandwidth, or servers.

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5 Use cases of LTE Broadcast and 5G Broadcast

LTE Broadcast and 5G Broadcast can be used for various use cases, depending on the type, size, and location of the audience, as well as the nature and duration of the content. For example, these technologies can be used to deliver live events, such as sports or news, to large audiences in stadiums or arenas or to smaller audiences in homes or offices. Additionally, they can be used to provide on-demand content, software updates, and targeted advertising. LTE Broadcast and 5G Broadcast can deliver these services without overloading the network or affecting the user experience.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Dusan Statelov
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There are many professionals claiming of no need for multicast/broadcast in mobile networks. This is why we initiated study analyzing needs within #5G-MAG group. In case you wish to contribute talk to us.

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What are the key features and differences of LTE Broadcast and 5G Broadcast technologies?

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1 LTE Broadcast overview

2 5G Broadcast overview

3 Key differences between LTE Broadcast and 5G Broadcast

4 Benefits of LTE Broadcast and 5G Broadcast

5 Use cases of LTE Broadcast and 5G Broadcast

6 Here’s what else to consider

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