Patent ID: 11902933
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The method according to claim 4, wherein the step of selecting one polynomial from each equivalence class of the quadratic polynomial set S to determine the set T comprises:
selecting one polynomial f(x) from each equivalence class of a quadratic polynomial set S1 and combining the polynomial f(x) with x−1 to form a set T1 in the following manner:, T
     1
    
    =
    
     
      {
      
       x
       -
       1
      
      }
     
     
      {
      
       
        
         
          x
          2
         
         +
         
          a
          ⁢
          x
         
         +
         b
        
        ∈
        
         S
         1
        
       
       ,
        
       
        
         [
         
          
           x
           2
          
          +
          
           a
           ⁢
           x
          
          +
          b
         
         ]
        
        ⁢
        

        are
        ⁢
           
        equivalence
        ⁢
           
        classes
        ⁢
           
        distinct
        ⁢
           
        to
        ⁢
           
        each
        ⁢
           
        other
       
      
      }
     
    
   
   ;
  
  ⁢
  
  
   
    where
    ⁢
       
    
     S
     1
    
   
   =
   
    
     {
     
      
       
        x
        2
       
       +
       ax
       +
       b
      
      ,
      
       a
       ∈
       
        F
        q
        *
       
      
      ,
      
       b
       ∈
       
        F
        q
       
      
     
     }
    
    ⁢
    \
    ⁢
    
     
      {
      
       
        
         (
         
          x
          -
          a
         
         )
        
        2
       
       ,
       
        a
        ∈
        
         F
         q
         *
        
       
      
      }
     
     .