Patent ID: 11863267
Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 15:
16. The method of claim 15, wherein the channel estimation step comprises:
a reception pilot signal generation step of generating reception pilot signals using a signal generation parameter for generating a Zadoff-Chu sequence included in beamforming information obtained from the frame of the transmitter; and
a calculation step of generating the reception pilot signals and then performing an operation of estimating a channel by the following (Equation 5) using the transmission pilot signals from the transmitter and the generated reception pilot signals,, ∑
       
        n
        =
        0
       
       
        N
        -
        1
       
      
      
       
        1
        ρ
       
       ⁢
       
        y
        ⁡
        (
        n
        )
       
       ⁢
       
        
         p
         H
        
        (
        n
        )
       
      
     
     =
         
   
   
    
     (
     
      Equation
      ⁢
         
      5
     
     )
    
   
  
 

(: estimated channel, ρ: constant for normalization, pH(n): a value obtained by performing a Hermitian operation on p(n),, y
    ⁡
    (
    n
    )
   
   =
   
    
     ∑
     
      l
      =
      0
     
     
      L
      -
      1
     
    
    
     
      h
      l
      T
     
     ⁢
     
      p
      ⁡
      (
      
       n
       -
       l
      
      )
     
    
   
  
  ,
  
   
    h
    l
   
   ∈
   
    ℂ
    
     
      N
      tx
     
     ×
     1
    
   
  
  ,
  
   
    p
    ⁡
    (
    n
    )
   
   ∈
   
    
     ℂ
     
      
       N
       tx
      
      ×
      1
     
    
    :
   
  
 

 a transmission pilot signal received from a single reception antenna, p(n): a pilot including samples of the transmission pilot signal of each transmission antenna vector, hl: the channel vector of the l-th path among multipath channels).