Table of Contents

 1     Scope          
 2     References
 3     Definitions
        3.1     Terms defined elsewhere       
        3.2     Terms defined in this Supplement      
 4     Abbreviations and acronyms             
 5     Introduction of 5G systems
        5.1     The 5G systems          
        5.2     The standardization roadmap of 5G    
        5.3     Specific aspects of 5G that impact EE 
 6     Energy efficiency metrics and methods for existing mobile systems 
        6.1     Introduction of work on energy management in ETSI  
 7     State of the art approaches
        7.1     Next Generation Access Technologies
        7.2     Service and system aspects    
        7.3     Other references       
 8     Proposed metrics for 5G energy efficiency  
        8.1     Metrics for 5G "first phase" (Release 15)          
        8.2     Metrics for 5G "future phases" (Release 16 and beyond)          
 9     Future work             
Bibliography