CONTENTS

 1     Scope 
 2     References 
        2.1     Normative 
 3     Definitions  
 4     Abbreviations   
 5     System assumption          
        5.1     Headend
        5.2     Core Network       
        5.3     Access Network   
        5.4     Connection with the Internet           
        5.5     STB 
 6     Requirements    
        6.1     Transmission and service    
        6.2     Packet format        
        6.3     Multiplexing and programme selection        
        6.4     Network QoS and bandwidth        
        6.5     STB 
        6.6     Security  
        6.7     Coordination with other services and technologies