Patent ID: 11863361
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 20:
21. The FD LOFO compensation method of claim 20, wherein the TD window is defined as:, H
   ⁡
   (
   t
   )
  
  =
  
   {
   
    
     
      
       1
       ,
        
      
     
     
      
       
        
         ❘
         "\[LeftBracketingBar]"
        
        t
        
         ❘
         "\[RightBracketingBar]"
        
       
       ≤
       
        
         1
         -
         α
        
        
         2
         ⁢
         
          F
          ref
         
        
       
      
     
    
    
     
      
       
        
         1
         2
        
        [
        
         1
         +
         
          cos
          ⁢
          
           (
           
            
             
              π
              ⁢
              
               F
               ref
              
             
             α
            
            [
            
             
              
               ❘
               "\[LeftBracketingBar]"
              
              t
              
               ❘
               "\[RightBracketingBar]"
              
             
             -
             
              
               1
               -
               α
              
              
               2
               ⁢
               
                F
                ref
               
              
             
            
            ]
           
           )
          
         
        
        ]
       
       ,
        
      
     
     
      
       
        
         1
         -
         α
        
        
         2
         ⁢
         
          F
          ref
         
        
       
       <
       
        
         ❘
         "\[LeftBracketingBar]"
        
        t
        
         ❘
         "\[RightBracketingBar]"
        
       
       ≤
       
        
         1
         +
         α
        
        
         2
         ⁢
         
          F
          ref
         
        
       
      
     
    
    
     
      
       0
       ,
        
      
     
     
      otherwise, where Fref is a reference frequency related to a width of the TD window, α is a roll-off factor of the RC and t is a given instant of time.