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Guide to the ATSC Mobile DTV Standard

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Guide to the ATSC Mobile DTV Standard ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 ATSC Recommended Practice: Guide to the ATSC Mobile DTV Standard Doc. A/154:2013 30 January 2013 Advanced Television Systems Committee 1776 K Street, N.W., Suite 200 Washington, D.C. 20006 202-872-9160 1 ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 The Advanced Television Systems Committee, Inc., is an international, non-profit organization developing voluntary standards for digital television. The ATSC member organizations represent the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. Specifically, ATSC is working to coordinate television standards among different communications media focusing on digital television, interactive systems, and broadband multimedia communications. ATSC is also developing digital television implementation strategies and presenting educational seminars on the ATSC standards. ATSC was formed in 1982 by the member organizations of the Joint Committee on InterSociety Coordination (JCIC): the Electronic Industries Association (EIA), the Institute of Electrical and Electronic Engineers (IEEE), the National Association of Broadcasters (NAB), the National Cable Telecommunications Association (NCTA), and the Society of Motion Picture and Television Engineers (SMPTE). Currently, there are approximately 160 members representing the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries. ATSC Digital TV Standards include digital high definition television (HDTV), standard definition television (SDTV), data broadcasting, multichannel surround-sound audio, and satellite direct-to-home broadcasting. Note: The user's attention is called to the possibility that compliance with this Recommended Practice may require use of an invention covered by patent rights. By publication of this document, no position is taken with respect to the validity of this claim or of any patent rights in connection therewith. One or more patent holders have, however, filed a statement regarding the terms on which such patent holder(s) may be willing to grant a license under these rights to individuals or entities desiring to obtain such a license. Details may be obtained from the ATSC Secretary and the patent holder. Revision History Version Date Initial version of A/154 approved (A/154:2011) 15 April 2011 Revision 1 approved (A/154:2013) 30 January 2013 2 ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 Table of Contents TABLE OF CONTENTS .................................................................................................................................. 3 1. SCOPE ..................................................................................................................................................... 7 1.1 Introduction and Background 7 1.2 Organization 8 2. REFERENCES ......................................................................................................................................... 8 2.1 Informative References 8 3. DEFINITION OF TERMS ........................................................................................................................ 10 3.1 Treatment of Syntactic Elements 10 3.2 Acronyms and Abbreviation 10 3.3 Terms 12 4. ATSC MOBILE DTV SYSTEM OVERVIEW ...........................................................................................13 4.1 Structure of the Standard 16 4.2 Physical Layer Overview 18 4.3 Management Layer Overview 20 4.4 Presentation Layer Overview 22 4.5 Systems Level Overview – Evolving the ATSC Mobile DTV System 24 5. RF/TRANSMISSION SYSTEM CHARACTERISTICS ............................................................................25 6. DATA TRANSPORT ............................................................................................................................... 25 6.1 Parades, Ensembles, and RS Frames 25 6.2 Insertion of Data into the RS Frames 27 6.3 Extraction of Data from RS Frames 27 6.4 Services 28 7. SIGNALING DATA DELIVERY AND USAGE ........................................................................................28 7.1 Signaling Data Structures 28 7.1.1 Overview of Hierarchical Signaling Structure 28 7.1.2 TPC Structure 29 7.1.3 FIC Structure 29 7.1.4 Service Signaling Channel (SSC) 31 7.1.5 Service Map Table (SMT) 32 7.1.6 Service Labeling Table 37 7.1.7 Guide Access Table 38 7.1.8 Cell Information Table 39 7.1.9 Rating Region Table 40 7.2 Timing of Signaling Data 40 7.3 Updates to Signaling Data 41 7.3.1 Update Propagation Mechanisms 41 7.3.2 Use Case A: Small Expansion of Ensemble and Services 43 7.3.3 Use Case B: Large Expansion of Ensembles and Services 48 7.3.4 Use Case C: Deleting Parades (and their Ensembles) 48 7.4 Multiple Protocol Versions of Signaling Data 48 7.5 Service Scans by Receivers 50 7.5.1 Fast Service Scan only through FIC 50 7.5.2 Intermediate Service Scan through FIC and SLT-MH 51 3 ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 7.6 Service Acquisition by Receivers 52 7.7 Receiver Handling of Updates to Signaling Data 53 7.8 Time of Day 53 8. ANNOUNCEMENT DATA DELIVERY AND USAGE .............................................................................54 8.1 Language Treatment in M/H Announcements and Signaling 55 8.1.1 Language Treatment in A/153 Part 4 (SG data) 55 8.1.2 Language Treatment in A/153 Part 3 (SMT Component Descriptors) 56 8.1.3 Mapping Language Tracks Between SMT and SG 56 8.2 ATSC-M/H-Specific Scoping of OMA BCAST SG 57 8.3 SG Delivery 57 8.3.1 Delivery Protocol Overview 57 8.3.2 SG Data Grouping and Filtering 58 8.3.3 M/H-Specific Aspects of SG Delivery 59 8.3.4 Announcement of Services in Other Broadcasts 60 8.4 SG Delivery Recommendations 60 8.4.1 In-Band SG Data Delivery 60 8.5 Receiver SG Acquisition Model 62 8.5.1 Bootstrapping and Guide Set 63 8.5.2 SG Acquisition 63 8.5.3 Data Merging and Conflict Resolution 63 8.5.4 Caching Strategies 64 8.6 Updates to Announcement Data 64 8.6.1 Broadcast SG 65 8.6.2 SG Delivered Over Interaction Channel 65 9. STREAMING DATA DELIVERY .............................................................................................................65 9.1 Streaming Data Delivery Mechanisms 65 9.1.1 Timing 65 9.1.2 Buffer Model 68 10. FILE DELIVERY ..................................................................................................................................... 68 10.1 File Delivery Mechanisms 68 10.2 FLUTE File Delivery Mechanism 68 10.3 Organizing Files into FLUTE Sessions 69 10.4 Extracting Files from FLUTE Sessions 70 11. APPLICATION FRAMEWORK ...............................................................................................................70 12. SERVICE PROTECTION DATA DELIVERY AND USAGE....................................................................70 12.1 Service Protection Mode of Operation and Data Structures 71 12.1.1 Broadcast Streams Protection 71 12.1.2 Four Layer Key Hierarchy 71 12.1.3 Trust Authority 72 12.1.4 Broadcast groups 72 12.1.5 Interactive vs. Broadcast-Only Mode 73 12.1.6 Broadcast Mode and Bandwidth Usage 73 12.1.7 Parental Control 74 12.1.8 ROAP Trigger Delivery 74 12.1.9 Signaling 74 12.2 Timing on Access Key Delivery 75 4 ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 12.2.1 Key Lifetimes 75 12.2.2 BCRO and Broadcast Message Delivery Scheduling 75 12.3 Extraction of Access Keys by Receivers 75 13. VIDEO SYSTEM CHARACTERISTICS .................................................................................................. 76 14. AUDIO SYSTEM CHARACTERISTICS .................................................................................................76 14.1 Loudness and Dynamic Range Control 76 14.1.1 Loudness Control 77 14.1.2 Dynamic Range Control 77 14.1.3 Applicability of Loudness and Dynamic Range Control Techniques Described in A/85 77 ANNEX A: MAPPING OF SERVICE MAP TABLE TO SERVICE GUIDE ................................... 79 A.1 Introduction 79 5 ATSC A/154:2013 ATSC Mobile DTV Recommended Practice 30 January 2013 Index of Figures and Tables Table 7.1 M/H Hierarchical Signaling Structures 29 Table 7.2 Example ATSC-M/H Broadcast Configuration 50 Table 7.3 Resulting Service Map Through FIC only Service Scan 50 Table 7.4 Resulting Service Map through FIC+SLT-MH only Service Scan 51 Table 7.5 Resulting Service Map through FIC+SMT-MH only Service Scan 51 Figure 4.1 The ATSC Mobile DTV system. 14 Figure 4.2 ATSC Mobile DTV broadcast system block diagram. 15 Figure 4.3 ATSC-M/H broadcast protocol stack. 16 Figure 4.4 The overall A/153 documentation structure. 17 Figure 4.5 Functional overview of the ATSC Mobile DTV system organized by sub-group. 18 Figure 4.6 Block diagram of an ATSC Mobile DTV transmission system. 19 Figure 4.7 ATSC Mobile DTV physical transport system. 20 Figure 4.8 OMA BCAST 4-layer key hierarchy. 22 Figure 4.9 Profiles in the AVC coding standard. 23 Figure 4.10 Toolkit of the HE AAC v2 system. 24 Figure 6.1. RS Frame payload byte array with augmentation. 26 Figure 7.1 SMT hierarchical structure. 32 Figure 7.2 Signaling hierarchy and the factors triggering updates in the signaling data. 42 Figure 7.3 Signaling configuration in M/H Frame (x). 44 Figure 7.4 Signaling configuration in M/H Frame (x + 1). 45 Figure 7.5 Signaling configuration in M/H Frame (x + 2). 47 Figure 12.1 The relationships between messages and keys. 72 6 ATSC A/154:2013
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