ABSTRACT
Contents 3.1 Introduction ................................................................................... 88 3.2 Characteristics and Requirements of Interactive
Mobile TV Systems ......................................................................... 90 3.3 Mobile TV Usage Scenarios............................................................. 92
3.3.1 Broadcast/Multicast Streaming................................................ 92 3.3.2 Broadcast/Multicast Download and Play ................................ 93 3.3.3 Broadcast/Multicast Streaming with User Interaction .............. 93
3.4 System Design Principles and Challenges........................................ 93 3.4.1 Supported Media Types and Bit Rates .................................... 93 3.4.2 Tune-In Delay ....................................................................... 94 3.4.3 Reliable Media Transport ....................................................... 94 3.4.4 Roaming and Handovers........................................................ 95
3.5 Mobile TV Standards....................................................................... 95 3.5.1 3GPP MBMS .......................................................................... 95 3.5.2 3GPP2 BCMCS ....................................................................... 96
3.5.5 OMA BCAST .........................................................................101
