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LTE Service Provider Solution: Reduce Cost, Increase Efficiency with Evolved Multimedia Broadcast Multicast Service (eMBMS)
By Mae Kowalke
Mobile network operators are always looking for new ways to more efficiently use their existing infrastructure without making large capital expenditures. With the explosion of tablets and smartphones, which will increasingly be used for a variety of video applications, streamed as well as interactive, use of a 4G LTE channel for delivering multicast services such as mobile TV is viewed as one way to do so. The reason is simple. It enables network operators to offer mobile TV without the need for additional expensive licensed spectrum and without requiring new infrastructure and end-user devices that might be required to unicast content.
A recent Alcatel-Lucent TechZine article, “eMBMS for More Efficient Use of Spectrum,” describes the enhancements to LTE specifications that have been standardized to accommodate rapidly changing user demands and concomitant network requirements. Evolved Multimedia Broadcast Multicast Service (eMBMS) is now a multicast standard for 4G LTE precisely because it allows one-to-many distribution of video content.