Patent ID: 11923975
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 9:
10. The computation method according to claim 9, wherein the channel transfer function H relates to a number N of antennas and a number F of frequency range, and is given in the form of a matrix:, H
   =
   
    
     (
     
      
       
        
         H
         0
        
       
      
      
       
        
         H
         1
        
       
      
      
       
        ⋮
       
      
      
       
        
         H
         f
        
       
      
      
       
        ⋮
       
      
      
       
        
         H
         
          F
          -
          1
         
        
       
      
     
     )
    
    =
    
     (
     
      
       
        
         h
         
          0
          ,
          0
         
        
       
       
        
         h
         
          0
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          0
          ,
          n
         
        
       
       
        …
       
       
        
         h
         
          0
          ,
          
           N
           -
           1
          
         
        
       
      
      
       
        
         h
         
          1
          ,
          0
         
        
       
       
        
         h
         
          1
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          1
          ,
          n
         
        
       
       
        …
       
       
        
         h
         
          1
          ,
          
           N
           -
           1
          
         
        
       
      
      
       
        ⋮
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
      
      
       
        
         h
         
          f
          ,
          0
         
        
       
       
        
         h
         
          f
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          f
          ,
          n
         
        
       
       
        …
       
       
        
         h
         
          f
          ,
          
           N
           -
           1
          
         
        
       
      
      
       
        ⋮
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
       
        ⋱
       
       
        ⋮
       
      
      
       
        
         h
         
          
           F
           -
           1
          
          ,
          0
         
        
       
       
        
         h
         
          
           F
           -
           1
          
          ,
          1
         
        
       
       
        …
       
       
        
         h
         
          
           F
           -
           1
          
          ,
          n
         
        
       
       
        …
       
       
        
         h
         
          
           F
           -
           1
          
          ,
          
           N
           -
           1
          
         
        
       
      
     
     )
    
   
  
  ,
 

and wherein the spatial transformation is performed before the frequency-to-time transformation by performing the spatial transformation for each row of the matrix H and performing the frequency-to-time transformation for each column of a matrix resulting from the spatial transformation, or
wherein the frequency-to-time transformation is performed before the spatial transformation by performing the frequency-to-time transformation for each column of the matrix H and performing the spatial transformation for each row of a matrix resulting from the frequency-to-time transformation.