REPORT ITU-R BT.2140 Transition from Analogue to Digital Terrestrial
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Rep. ITU-R BT.2140 1 REPORT ITU-R BT.2140 Transition from analogue to digital terrestrial broadcasting (2008) Note by the Chairman A Group was tasked to prepare a Report on the Transition from analogue to digital broadcasting by WP 6E of ITU-R with Decision annexed to the Chairman’s Report as Corrigendum 1 to Annex 17 to Document 6E/39/30-01-2004 of WP 6E. The Group had nine meetings and prepared a draft final version of the Report. Three meetings were held, the first at the EBU Headquarters in Geneva on 13 January 2004, the second in Milan on 26 and 27 February 2004 and the third, organized during the April 2004 meeting of WP 6E. As a result of these meetings the Group defined and adopted the Draft Contents of the Report. The next six meetings were held in Rome on 7-9 July 2004, in October 2004 during the meeting of WP 6E, in Venice on 3-4 March 2005, in Rome on 27-28 June 2005, in Seoul in August 2006, in Rome on 17-18 January 2007 and in Rome on 3-6 December 2007. At this meeting the Group concluded its work and will present its Final Report to the WP 6E meeting planned for May 2008. The purpose of this Report is to help the Countries that are in the process of migrating from analogue to digital terrestrial broadcasting. The Report examines the reasons why this is happening and the technologies involved. It provides an overview of digital terrestrial sound and television broadcasting technologies and system migration. The Report outlines the available options for making that transition and the route to be followed. The Report is divided into two parts. Part 1 deals with the main issues related with the transition to digital, presents the principal problems and possible solutions. Part 2 gives more detailed information on important aspects which have already been covered in Part 1. List of participants Arasteh K. (IRN), Bochent D. (F), Cane M. (I), Canzio A. (I), Cruciatti M. (I), Dotolev V. (RUS), Valderez de Almeida Donzelli (B) Fujii T. (J), Giudici P.V. (CVA), Hate M. (UK), Kantchev P. (BUL), Kim K. (KOR), Kisrawi N. (SYR), Lazzarini P. (CVA), Magenta A. (I), Masullo G. (I), Mege Ph. (F), Mimis V. (CAN), Montrucchio S. (I), Nalbandian A. (ARM ), Olson L. (USA), Perpar S. (SVN), Perrazzino A. (I), Puigrefagut E. (EBU), Salvatori S. (CVA), Simic M. (Ser), Scotti A. (I), Spells G. (UK), Stanley G. (UK), Tsuchida K.(J), Vasseur P. (F). 2 Rep. ITU-R BT.2140 Part 1 Contents Page Chapter 1 .............................................................................................................................................. 5 1 Introduction .................................................................................................................................5 1.1 Purpose of Report ....................................................................................................................... 5 1.2 General ....................................................................................................................................... 5 1.3 Why Digital? - Technical Considerations................................................................................... 5 1.4 Why Digital? - Commercial and Regulatory Considerations ..................................................... 6 1.5 How Digital? - Technical and Regulatory Considerations ......................................................... 6 1.6 How Digital? - Commercial Considerations............................................................................... 7 1.7 ITU activities .............................................................................................................................. 8 1.8 The scope and the future of Radiocommunication Study Group 6............................................. 9 1.8.1 Introduction ................................................................................................................... 9 1.8.2 The digital broadcasting chain....................................................................................... 9 1.8.3 Outline for the future ..................................................................................................... 11 Chapter 2 .............................................................................................................................................. 13 2 Overview of broadcasting technologies...................................................................................... 13 2.1 Introduction ................................................................................................................................ 13 2.1.1 ITU-R .................................................................................................................. 13 2.1.2 ITU-T .................................................................................................................. 13 2.1.3 ITU-D .................................................................................................................... 14 2.1.4 Regional Radiocommunication Conference (RRC) ...................................................... 14 2.1.5 World Radiocommunication Conference (WRC-07) .................................................... 15 2.2 Analogue broadcasting technologies and systems...................................................................... 15 2.3 Planning considerations for analogue and digital systems ......................................................... 15 2.3.1 Background ................................................................................................................ 15 2.3.2 Sharing broadcasting frequencies bands with other primary services........................... 16 2.4 Digital broadcasting technologies and systems .......................................................................... 18 2.4.1 Digital Fundamentals..................................................................................................... 18 2.4.2 Background ................................................................................................................ 18 2.5 Digital Sound Broadcasting........................................................................................................ 20 2.5.1 Description of digital sound broadcasting systems........................................................ 22 2.6 Digital terrestrial television broadcasting................................................................................... 24 2.6.1 Introduction ................................................................................................................ 24 2.6.2 Description of Digital Television Broadcasting systems............................................... 25 2.7 Summary ....................................................................................................................... 30 2.8 Evaluation of potential Digital Sound and TV Broadcasting systems........................................ 31 2.8.1 Evaluation of specific Terrestrial Digital Sound and TV Broadcasting ........................ 31 2.8.2 Hybrid systems ............................................................................................................. 31 Rep. ITU-R BT.2140 3 Page Chapter 3 .............................................................................................................................................. 32 3 Application and implementation of digital broadcasting............................................................ 32 3.1 Regulatory considerations .......................................................................................................... 32 3.2 Efficient usage of broadcasting spectrum................................................................................... 33 3.3 Requirements of sound and television broadcasting services..................................................... 33 3.3.1 Network aspects............................................................................................................. 33 3.3.2 Receiver aspects ............................................................................................................ 34 3.4 Aspects related to the interoperability of systems ...................................................................... 34 3.5 Components of digital sound broadcasting equipment............................................................... 34 3.5.1 Transmitters ................................................................................................................ 34 3.5.2 Antennas for transmission ............................................................................................. 34 3.5.3 Receivers ................................................................................................................ 34 3.6 Components of digital television broadcasting equipment......................................................... 35 3.6.1 Transmitters ................................................................................................................ 35 3.6.2 Antennas for transmission ............................................................................................. 35 3.6.3 Receivers ................................................................................................................ 36 3.7 Data broadcasting ....................................................................................................................... 36 3.8 Broadcasting services for mobile reception................................................................................ 37 3.9