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International Journal of Digital Multimedia Broadcasting
Volume 2009, Article ID 597848, 25 pages
Research Article

MBMS—IP Multicast/Broadcast in 3G Networks

Ericsson GmbH, Eurolab R&D, Ericsson Allee 1, 52134 Herzogenrath, Germany

Received 1 March 2009; Accepted 1 December 2009

Academic Editor: Sooyoung Kim

Copyright © 2009 Frank Hartung et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In this article, the Multimedia Broadcast and Multicast Service (MBMS) as standardized in 3GPP is presented. With MBMS, multicast and broadcast capabilities are introduced into cellular networks. After an introduction into MBMS technology, MBMS radio bearer realizations are presented. Different MBMS bearer services like broadcast mode, enhanced broadcast mode and multicast mode are discussed. Streaming and download services over MBMS are presented and supported media codecs are listed. Service layer components as defined in Open Mobile Alliance (OMA) are introduced. For a Mobile TV use case capacity improvements achieved by MBMS are shown. Finally, evolution of MBMS as part of 3GPP standardization is presented.