DAB Multimedia Object Transfer

draft EN 301 234 V2.1.1 (2004-08-12)

European Standard (Telecommunications series)

Digital Audio Broadcasting (DAB);Multimedia Object Transfer (MOT) protocol

EBUUER

European Broadcasting Union Union Europenne de Radio-Tlvision

ETSI

draft EN 301 234 V2.1.1 (2004-08-12)2

Reference REN/JTC-DAB-MOT-1 (bfc00ioo.PDF)

Keywords DAB, digital, audio, broadcasting, multimedia,

protocol

ETSI

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No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.

European Telecommunications Standards Institute 1999.

European Broadcasting Union 1999. All rights reserved.

ETSI

draft EN 301 234 V2.1.1 (2004-08-12)3

Contents

Intellectual Property Rights.......................................................................................................................6

Foreword ................................................................................................................................................6

Foreword to V.2.1.1.................................................................................................................................7

1 Scope ............................................................................................................................................8

2 References ....................................................................................................................................8

3 Definitions, abbreviations and maintaining tables of registered values ...............................................11 3.1 Definitions................................................................................................................................................................................. 11 3.2 Abbreviations........................................................................................................................................................................... 13 3.3 Maintaining tables of registered values ............................................................................................................................... 13

4 General description of the MOT protocol .......................................................................................14 4.1 Requirements of Multimedia services ................................................................................................................................... 14 4.2 Problems MOT solves ............................................................................................................................................................. 14 4.3 Receiver architecture reference model.................................................................................................................................. 15

5 Structural description ....................................................................................................................16 5.1 Segmentation of MOT entities ............................................................................................................................................... 17 5.1.1 Segmentation header......................................................................................................................................................... 19 5.1.2 Segmentation of the MOT body...................................................................................................................................... 19 5.1.3 Segmentation of the MOT directory ............................................................................................................................... 19 5.1.4 Segmentation of the MOT header................................................................................................................................... 20 5.2 Transporting MOT segments - network level...................................................................................................................... 20 5.2.1 Packet mode........................................................................................................................................................................ 20 5.2.2 X-PAD................................................................................................................................................................................. 20 5.3 Transmission Mechanisms ..................................................................................................................................................... 22 5.3.1 Single object transmission (MOT header mo de)........................................................................................................... 22 5.3.1.1 Repetition on object level................................................................................................................................................. 22 5.3.1.2 Repetition of MSC data groups / MOT segments ........................................................................................................ 23 5.3.1.3 Repeated transmission of header information (combined with repetition on object level) .................................... 23 5.3.2 Multiple object transmissions (MOT directory mode)................................................................................................. 24 5.3.2.1 Interleaving MOT entities in one MOT stream............................................................................................................. 25

6 MOT header information ..............................................................................................................26 6.1 Header core ............................................................................................................................................................................... 26 6.2 Header extension...................................................................................................................................................................... 27 6.2.1 Future expansion of the parameter data field................................................................................................................. 28 6.2.2 Parameters of the header extension for MOT header mode and MOT directory mode .......................................... 29 6.2.2.1 MOT Basic transport parameters .................................................................................................................................... 29 6.2.2.1.1 ContentName................................................................................................................................................................ 29 6.2.2.1.2 MimeType..................................................................................................................................................................... 29 6.2.2.1.3 CompressionType ....................................................................................................................................................... 30 6.2.3 Parameters of the header extension for MOT directory mode only ........................................................................... 30 6.2.3.1 MOT caching support parameters .................................................................................................................................. 30 6.2.3.1.1 Expiration ...................................................................................................................................................................... 30 6.2.3.1.1.1 Absolute expire times.................................................................................................................................................. 31 6.2.3.1.1.2 Relative expire times .................................................................................................................................................... 31 6.2.3.1.1.3 Disabling DefaultExpiration ....................................................................................................................................... 32 6.2.3.1.2 PermitOutdatedVersions............................................................................................................................................. 32 6.2.3.1.3 UniqueBodyVersion.................................................................................................................................................... 32 6.2.3.1.4 Priority........................................................................................................................................................................... 33 6.2.3.1.5 RetransmissionDistance............................................................................................................................................. 33 6.2.3.2 MOT conditional access parameters .............................................................................................................................. 33

ETSI

draft EN 301 234 V2.1.1 (2004-08-12)4

6.2.3.2.1 CAInfo.............................................................................................