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[LTE_428] LTE-Broadcast: eMBMS in LTE Networks

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Video traffic in mobile networks is mushrooming. Video has traditionally been delivered to mobile consumers as an individual unicast stream. Since consumption of video on phones and tablets has increased significantly, this gobbles up a lot of mobile network resources. Since this is often OTT content, video often does not get the necessary QoS, prompting the use of adaptive streaming techniques. eMBMS (evolved Multimedia Broadcast Multicast Service), also known as LTE Broadcast, allows mobile operators to deliver video as a single broadcast stream, thereby dramatically saving network resources and ensuring good QoS. eMBMS can also be used for other applications such as software downloads. This course provides an introductory treatment of eMBMS. It covers the primary use cases for eMBMS, the functionality of the new network elements introduced in an LTE network to support the service, and the changes to the radio interface required to support broadcast mode. The course ends with a discussion of deployment considerations.

Learning Objectives

After completing this course, the student will be able to:
• Describe the drivers and the state of adoption for LTE Broadcast
• List some of the key use cases for LTE-Broadcast/eMBMS
• Compare and contrast the architecture of various video networks including OTT
• Sketch the end-to-end architecture of eMBMS and describe the functionality of its components
• Describe LTE air interface features that support eMBMS
• List deployment considerations and the evolution of standards for eMBMS

Intended Audience

This course is primarily intended for all technical and marketing personnel wanting to get a better understanding of the use of LTE-Broadcast or eMBMS in mobile networks.

Course Length

1 day

Course Outlines / Knowledge Knuggets

1. LTE-Broadcast/eMBMS – Need and Applications
1.1. What is eMBMS?
1.2. Unicast vs. multicast
1.3. Mobile traffic savings
1.4. Use cases for eMBMS
1.5. State of the Industry

2. Video Networks
2.1. Survey of Video network architectures
2.2. Differences between OTT and Service Provider video
2.3. Content Delivery Networks
2.4. Adaptive Streaming

3. End-to-End View of eMBMS
3.1. End-to-end architecture
3.2. eMBMS node functionality
3.3. eMBMS protocols
3.4. IP Multicast in eMBMS
3.5. eMBMS and MPEG-DASH
3.6. SYNC protocol

4. Radio Aspects of eMBMS
4.1. LTE physical layer support for eMBMS
4.2. Single frequency network
4.3. Air interface channels supporting eMBMS

5. eMBMS Deployment Considerations
5.1. Deployment considerations
5.2. eMBMS ecosystem
5.3. eMBMS standards evolution

Appendix: Video Coding and Transmission

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