Patent ID: 11870524
Assignee: LG ELECTRONICS INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The method of claim 5, wherein an element vq,m included in the codevector vq is a value for phase correction of each antenna included in the antenna array and is represented by the following equation,

[Equation], v
   
    q
    ,
    m
   
  
  =
  
   e
   
    j
    ⁢
    2
    ⁢
    π
    ⁢
    
     r
     λ
    
    ⁢
    
     (
     
      
       sin
       ⁢
       
        Θ
        q
       
       ⁢
       
        
         sin
         ⁢
         θ
        
        m
       
       ⁢
       
        cos
        (
        
         
          Φ
          q
         
         -
         
          ϕ
          m
         
        
        )
       
      
      +
      
       cos
       ⁢
       
        Θ
        q
       
       ⁢
       
        
         cos
         ⁢
         θ
        
        m
       
      
     
     )
    
   
  
 

wherein m is an index of each antenna included in the antenna array, 0≤m≤M−1, r is a distance between the center of the three-dimensional shape and each antenna, λ is a wavelength according to a carrier frequency at which the CSI-RS is transmitted, θm is a zenith angle at a position of each antenna, ϕm is an azimuth angle at the position of each antenna, Θq is a zenith angle at a position of the codevector vq in the specific sectors, and Φq is an azimuth angle at a position of the codevector vq in the specific sectors.