CONTENTS

 1     Introduction    
 2     Methodology  
        2.1     General  
        2.2     Detailed description of the flow chart (see Fig. 1)          
                  2.2.1     Box (1): Existing ITU documents          
                  2.2.2     Box (2): Existing ITU documents          
                  2.2.3     Box (3): Evaluate interference    
                  2.2.4     Boxes (4), (5) and (6): New information
                  2.2.6     Box (ii): Interference power       
                  2.2.7     Box (iii): Assess discrepancy      
                  2.2.8     Box (iv): Consultative solution   
                  2.2.9     Diamond (a): Interference power
passive service criteria        
                  2.2.10     Diamond (b): Interference power ≤ threshold  
                  2.2.11     Diamond (c): Can the emission parameters be refined?           
                  2.2.12     Diamond (d): Can the reception parameters in passive band be refined?        
                  2.2.13     Diamond (e): Is the application of mitigation techniques feasible?      
                  2.2.14     End circles (a), (b), (c)  
 3     Compatibility analysis between RAS systems operating in the 150.05-153.0 MHz band and mobile-satellite service (space-to-Earth) systems operating in the 137-138 MHz band     
        3.1     RAS
                  3.1.1     Allocated band   
                  3.1.2     Type of observations       
                  3.1.3     Required protection criteria        
                  3.1.4     Operational characteristics          
        3.2     MSS
                  3.2.1     Allocated transmit band 
                  3.2.2     Application         
                  3.2.3     Levels based upon regulatory provisions
                  3.2.4     Operational characteristics          
        3.3     Compatibility threshold   
        3.4     Interference assessment   
                  3.4.1     Methodology used to assess the interference level         
                  3.4.2     Calculation of interference level 
                  3.4.3     Values achieved  
        3.5     Mitigation techniques      
                  3.5.1     RAS        
                  3.5.2     Potential impact to the RAS       
 4     Compatibility analysis between RAS systems operating in the 322‑328.6 MHz band and mobile-satellite service (space-to-Earth) systems operating in the 387-390 MHz band     
        4.1     RAS
                  4.1.1     Allocated band   
                  4.1.2     Type of observations       
                  4.1.3     Required protection criteria        
                  4.1.4     Operational characteristics          
        4.2     MSS
                  4.2.1     Allocated transmit band 
                  4.2.2     Application         
                  4.2.3     Levels based upon regulatory provisions
                  4.2.4     Operational characteristics          
        4.3     Compatibility threshold   
                  4.3.1     Non-GSO systems          
                  4.3.2     GSO systems      
        4.4     Interference assessment   
                  4.4.1     Non-GSO case    
                  4.4.2     GSO case
                  4.4.3     Values achieved  
        4.5     Mitigation techniques      
                  4.5.1     RAS        
                  4.5.2     Potential impact for the RAS     
 5     Compatibility analysis between RAS systems operating in the 406.1-410 MHz band and mobile-satellite service (space-to-Earth) systems operating in the 400.15-401 MHz band     
        5.1     RAS
                  5.1.1     Allocated band   
                  5.1.2     Type of observations       
                  5.1.3     Required protection criteria        
                  5.1.4     Operational characteristics          
        5.2     MSS
                  5.2.1     Allocated transmit band 
                  5.2.2     Application         
                  5.2.3     Levels based upon regulatory provisions
                  5.2.4     Operational characteristics          
        5.3     Compatibility threshold   
        5.4     Interference assessment   
                  5.4.1     Methodology used to assess the interference level         
                  5.4.2     Calculation of interference level 
                  5.4.3     Values achieved  
        5.5     Mitigation techniques      
                  5.5.1     RAS        
                  5.5.2     Potential impact on the RAS      
 6     Compatibility analysis between RAS systems operating in the 608‑614 MHz band and broadcasting-satellite service (space-to-Earth) systems that may operate in the 620-790 MHz band     
        6.1     RAS
                  6.1.1     Allocated band   
                  6.1.2     Type of observations       
                  6.1.3     Required protection criteria        
                  6.1.4     Operational characteristics          
        6.2     BSS
                  6.2.1     Allocated transmit band 
                  6.2.2     Application         
                  6.2.3     Levels based upon regulatory provisions
                  6.2.4     Operational characteristics          
                               6.2.4.1.1     Constellation parameters      
        6.3     Compatibility threshold   
                  6.3.1     Non-GSO systems          
                  6.3.2     GSO systems      
        6.4     Interference assessment   
                  6.4.1     Non-GSO case    
                  6.4.2     GSO case
                  6.4.3     Values achieved  
        6.5     Mitigation techniques      
                  6.5.1     RAS        
                  6.5.2     Potential impact on the RAS      
 7     Compatibility analysis between RAS systems operating in the  1 400-1 427 MHz and 1 610.6-1 613.8 MHz bands and non-GSO mobile‑satellite service (space-to-Earth) systems operating in the 1 525‑1 559 MHz band     
        7.1     RAS
                  7.1.1     Allocated bands  
                  7.1.2     Type of observations       
                  7.1.3     Required protection criteria        
                  7.1.4     Operational characteristics          
        7.2     MSS
                  7.2.1     Allocated transmit band 
                  7.2.2     Application         
                  7.2.3     Levels based upon regulatory provisions
                  7.2.4     Operational characteristics          
        7.3     Compatibility threshold   
        7.4     Interference assessment   
                  7.4.1     Methodology used to assess the interference level         
                  7.4.2     Calculation of interference level 
                  7.4.3     Values achieved  
        7.5     Mitigation techniques for the RAS          
        7.6     Results of studies 
                  7.6.1     Summary 
                  7.6.2     Conclusions         
 8     Compatibility analysis between RAS systems operating in the 1
 400-1 427 MHz band and BSS (space-to-Earth) systems operating in the 1 452‑1 492 MHz band     
        8.1     RAS
                  8.1.1     Allocated band   
                  8.1.2     Type of observations       
                  8.1.3     Required protection criteria        
                  8.1.4     Operational characteristics          
        8.2     BSS
                  8.2.1     Allocated transmit band 
                  8.2.2     Application         
                  8.2.3     Levels based upon regulatory provisions
                  8.2.4     Operational characteristics          
        8.3     Compatibility threshold   
        8.4     Interference assessment   
                  8.4.1     Methodology used to assess the interference level         
                  8.4.2     Calculation of interference level 
                  8.4.3     Values achieved  
        
8.5     Mitigation techniques      
                  
8.5.1     RAS        
                  
8.5.2     BSS         
                  
8.5.3     Potential impact  
                               8.5.3.1     RAS    
        8.6     Results of studies 
                  8.6.1     Summary 
                  8.6.2     Conclusions         
 9     Compatibility analysis between the RAS in the 1
 400-1 427 MHz band and GSO mobile-satellite systems (space-to-Earth) operating in the 1 525-1 559 MHz band     
        9.1     RAS
                  9.1.1     Allocated band   
                  9.1.2     Type of observations       
                  9.1.3     Required protection criteria        
                  9.1.4     Operational characteristics, type of observations           
        9.2     MSS
                  9.2.1     Allocated transmit band 
                  9.2.2     Application         
                  9.2.3     Levels based on regulatory provisions    
                  9.2.4     Transmitter characteristics          
                  9.2.5     Operational characteristics          
                  9.2.6     In-band transmit level     
        9.3     Compatibility threshold   
        9.4     Interference assessment   
                  9.4.1     Methodology used to assess the interference level         
                  9.4.2     Calculation of interference level 
                  9.4.3     Values achieved  
        9.5     Mitigation techniques      
                  9.5.1     RAS        
                  9.5.2     MSS        
                  9.5.3     Potential impact for MSS           
        9.6     Results of studies 
                  9.6.1     Summary 
                  9.6.2     Conclusions         
10     Compatibility analysis between RAS systems operating in the 1
 610.6-1 613.8 MHz band and RNSS systems operating in the 1 559-1 610 MHz band     
       10.1     RAS     
                  10.1.1     Allocated band 
                  10.1.2     Type of observations     
                  10.1.3     Required protection criteria      
                  10.1.4     Operational characteristics        
       10.2     RNSS   
                  10.2.1     Allocated transmit band           
                  10.2.2     Application       
                  10.2.3     Levels based upon regulatory provisions          
                  10.2.4     Operational characteristics        
       10.3     Compatibility threshold  
       10.4     Interference assessment  
                  10.4.2     Calculation of the interference level     
                  10.4.3     Values achieved
       10.5     Mitigation methods         
                  10.5.1     RAS      
                  10.5.2     Radionavigation-satellite service          
                  10.5.3     Potential impact
       10.6     Results of studies
11     Compatibility analysis between RAS systems operating in the 1
 610.6-1 613.8 MHz band and MSS (space-to-Earth) systems operating in the 1 613.8-1 626.5 MHz band     
       11.1     RAS     
                  11.1.1     Allocated band 
                  11.1.2     Type of observations     
                  11.1.3     Required protection criteria      
                  11.1.4     Operational characteristics        
       11.2     MSS     
                  11.2.1     Allocated transmit band           
                  11.2.2     Application       
                  11.2.3     Levels based upon regulatory provisions          
       11.3     Compatibility threshold  
       11.4     Interference assessment  
                  11.4.1     Methodology used to assess the interference level       
                  11.4.2     Calculation of the interference level     
                  11.4.3     Values achieved
       11.5     Mitigation techniques     
                  11.5.1     RAS      
                  11.5.2     MSS      
                  11.5.3     Potential impact
       11.6     Results of studies
                  11.6.1     Summary           
                  11.6.2     Conclusions       
12     Compatibility analysis between RAS systems operating in the 1
 610.6-1 613.8 MHz band and GSO MSS (space-to-Earth) systems operating in the 1 525-1 559 MHz band     
       12.1     RAS     
                  12.1.1     Allocated band 
                  12.1.2     Type of observations     
                  12.1.3     Required protection criteria      
                  12.1.4     Operational characteristics        
       12.2     MSS     
                  12.2.1     Allocated transmit band           
                  12.2.2     Application       
                  12.2.3     Levels based upon regulatory provisions          
                  12.2.4     Transmitter characteristics        
                  12.2.5     Operational characteristics        
                  12.2.6     In-band transmit level   
       12.3     Compatibility threshold  
       12.4     Interference assessment  
                  12.4.1     Methodology used to assess the interference level       
                  12.4.2     Calculation of the interference level     
                  12.4.3     Values achieved
       12.5     Mitigation techniques     
                  12.5.1     Radio astronomy service           
                  12.5.2     Mobile-satellite service 
                  12.5.3     Potential impact
       12.6     Results of studies
                  12.6.1     Summary           
                  12.6.2     Conclusions       
13     Compatibility analysis between the RAS systems (space-to-Earth) operating in the 2
 690-2 700 MHz band and the BSS, and FSS (space-to-Earth) systems operating in the 2 655-2 690 MHz band     
       13.1     RAS     
                  13.1.1     Allocated band 
                  13.1.2     Type of observations     
                  13.1.3     Required service protection criteria      
                  13.1.4     Operational characteristics        
       13.2     Active band        
                  13.2.1     Allocated transmit band           
                  13.2.2     Application       
                  13.2.3     Levels based on regulatory provisions  
                  13.2.4     Transmitter characteristics        
                  13.2.5     Operational characteristics        
                  13.2.6     In-band transmit level   
       13.3     Compatibility threshold  
       13.4     Interference assessment  
                  13.4.1     Methodology used to assess the interference level       
                  13.4.2     Calculation of the interference level     
                  13.4.3     Values achieved
       13.5     Mitigation techniques     
                  13.5.1     RAS      
                  13.5.2     FSS/BSS           
                  13.5.3     Potential impact
       13.6     Results of studies
                  13.6.1     Summary           
                  13.6.2     Conclusion        
14     Compatibility analysis between RAS systems operating in the 10.6-10.7 GHz band and FSS (space-to-Earth) systems operating in the 10.7-10.95 GHz band     
       14.1     RAS     
                  14.1.1     Allocated band 
                  14.1.2     Type of observations     
                  14.1.3     Required protection criteria      
                  14.1.4     Operational characteristics        
       14.2     FSS
                  14.2.1     Allocated transmit band           
                  14.2.2     Application       
                  14.2.3     Levels based upon regulatory provisions          
                  14.2.4     Transmitter characteristics        
                  14.2.5     Operational characteristics        
       14.3     Compatibility threshold  
       14.4     Interference assessment  
                  14.4.1     Methodology used to assess the interference level       
                  14.4.2     Calculation of the interference level     
                  14.4.3     Values achieved
       14.5     Mitigation techniques     
                  14.5.1     RAS      
                  14.5.2     The active service          
                  14.5.3     Potential impact
       14.6     Results of studies
                  14.6.1     Summary           
                  14.6.2     Conclusion        
15     Compatibility analysis between RAS systems operating in the 22.21-22.5 GHz band and BSS (space-to-Earth) systems operating in the 21.4-22 GHz band     
       15.1     RAS     
                  15.1.1     Allocated band 
                  15.1.2     Type of observations     
                  15.1.3     Required protection criteria      
                  15.1.4     Operational characteristics        
       15.2     BSS      
                  15.2.1     Allocated transmit band           
                  15.2.2     Service  
                  15.2.3     Levels based on regulatory provision   
                  15.2.4     Transmitter characteristics        
                  15.2.5     Operational characteristics        
                  15.2.6     In-band transmit level   
       15.3     Compatibility threshold  
       15.4     Interference assessment  
                  15.4.1     Methodology used to assess the interference level       
                  15.4.2     Calculation of interference level           
                  15.4.3     Values achieved
       15.5     Mitigation methods         
                  15.5.1     RAS      
                  15.5.2     BSS       
                  15.5.3     Potential impact
       15.6     Results of studies
16     Compatibility analysis between RAS systems operating in the 42.5-43.5 GHz band and FSS and BSS (space-to-Earth) systems operating in the 41.5-42.5 GHz band     
       16.1     RAS     
                  16.1.1     Allocated band 
                  16.1.2     Type of observations     
                  16.1.3     Required protection criteria      
                  16.1.4     Operational characteristics        
       16.2     FSS and BSS      
                  16.2.1     Allocated transmit band           
                  16.2.2     Application       
                  16.2.3     Levels based on existing ITU documents         
                  16.2.4     Transmitter characteristics        
                  16.2.5     Operational characteristics        
                  16.2.6     In-band transmit level   
       16.3     Compatibility threshold  
       16.4     Interference assessment  
                  16.4.1     Methodology used to assess the interference level       
                  16.4.2     Calculation of interference level           
                  16.4.3     Values achieved
       16.5     Mitigation techniques     
                  16.5.1     RAS      
                  16.5.2     FSS and BSS    
                  16.5.3     Potential impact
       16.6     Results of studies
                  16.6.1     Summary           
                  16.6.2     Conclusions