RECOMMENDATION ITU-R BO.1294 … Common functional requirements for the reception of digital multiprogramme television ... ANNEX 1 … Common functional requirements for the reception of digital multiprogramme television emissions by satellite ... 1 Introduction 2 Generic reference model for the common functional requirements of a satellite IRD 3 Universal elements of a satellite IRD 3.1 Demodulation and decoding 3.2 Transport and demultiplexing 3.3 Source decoding of video, audio and data 4 Summary characteristics of digital multiprogramme TV systems by satellite 5 Specific characteristics 5.1 Signal spectrum of the different systems at the modulator output 5.2 Convolutional coding 5.3 Synchronization characteristics 5.4 Convolutional interleaver 5.5 Reed-Solomon encoder 5.6 Energy dispersal 5.7 Framing and transport stream characteristics 6 Normative references 7 Informative references 8 List of acronyms APPENDIX 1 TO ANNEX 1 … System B transport stream characteristics 1 Introduction 2 Prefix 3 Null and Ranging Packets 4 Video application packets 4.1 Auxiliary data packets 4.2 Basic video service packets 4.3 Redundant data packets 4.4 Non-MPEG video data packets 5 Audio application packets 5.1 Auxiliary data packets 5.2 Basic audio service packets 5.3 Non-MPEG audio data packets 6 Program guide packets 7 Transport multiplex constraints 7.1 Elementary stream multiplex constraint definition