Mobile Broadcast Bearer Technologies--A comparison

lq800107

1. Introduction ..................................................................................... 5
2. Motivation........................................................................................ 7
3.  Overview of Bearer Technologies......................................................... 9
3.1. DVB-H.................................................................................... 9
3.2. DAB/T-DMB............................................................................10
3.3.  Forward Link Only (FLOTM): ......................................................11
3.4. Mobile Broadcast Multicast Service (MBMS).................................12
3.5. DVB-SH.................................................................................13
4. Technical Description of Bearer Technologies .......................................15
4.1. DVB-H...................................................................................15
4.1.1. System requirements..............................................................15
4.1.2. System overview....................................................................16
4.1.3. The physical layer: .................................................................16
4.1.4. Time slicing ...........................................................................16
4.1.5.  IP interfacing and enhanced forward error correction...................18
4.1.6. Physical layer extensions.........................................................20
4.1.7. IP Datacast and DVB-H ...........................................................22
4.1.8. IPDC Reference Architecture ....................................................22
4.1.9. OMA BCAST...........................................................................24
4.2. DAB/T-DMB............................................................................25
4.2.1. System overview....................................................................25
4.2.2. Enhanced Stream and Packet Mode...........................................26
4.2.3. Digital Multimedia Broadcasting / Mobile TV ...............................27
4.2.4. Additional Audio System..........................................................28
4.2.5. Internet Protocol DataCast  (IPDC) / Mobile TV...........................29
4.3. Forward Link Only (FLO) ..........................................................29
4.3.1. System Overview ...................................................................29
4.3.2. Physical Layer........................................................................30
4.3.3.  Link Layers (MAC Control & Stream sub-layers) ..........................32
4.3.4. Upper Layers .........................................................................33
4.4. Multimedia Broadcast Multicast Service (MBMS) ..........................36
4.5. DVB-SH.................................................................................38
4.5.1. Hybrid System Overview .........................................................38
4.5.2. Main Characteristics................................................................39 5.  Comparison of Technical Parameters...................................................41
5.1. Bearer Layer Frequency ...........................................................41
5.2. Bearer Layer Transmission .......................................................42
5.3. Bearer Layer Network..............................................................44
5.4. Transport Layer ......................................................................45
5.5. Service Layer .........................................................................45
5.6. Audio/Video ...........................................................................46
6. Standards .......................................................................................49
6.1.  DVB-H &  IP Datacast over DVB-H.............................................49
6.2. DAB, T-DMB...........................................................................49
6.3. FLO.......................................................................................51
6.4. MBMS....................................................................................52
6.5. DVB-SH.................................................................................52
6.6. OMA BCAST ...........................................................................52
7.  On bmcoforum “Bearer Technology” Group..........................................55