A Study of Multimedia Broadcast and Multicast Service
Multicast and Broadcast Service (MBS), or Multimedia Broadcast/Multicast Services (MBMS), is one of the important services to be supported by the next generation cellular systems. MBMS is an IP DataCast (IPDC) type of service that can be offered via existing GSM and UMTS cellular networks. The infrastructure gives the possibility to use an uplink channel for the interactions between the service and the user. MBMS has been standardized in various groups of 3GPP (Third Generation Partnership Project), and the first phase standards are to be finalized for UMTS release 6. The service seems to be rather attractive, as quite a lot of operators, equipment manufacturers and other representatives have participated in the standardization work.