Patent ID: 11936508
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. The method of claim 1, wherein the OFDM signal is a physical random-access channel (PRACH) signal, and the transmitting the OFDM signal comprises:
generating a time-continuous signal sl(p,μ)(t) on antenna port p and the first subcarrier spacing of the first numerology μ, for OFDM symbol 1 in a subframe, according to:, s
        l
        
          (
          
            p
            ,
            μ
          
          )
        
      
      ⁡
      
        (
        t
        )
      
    
    =
    
      
        ∑
        
          k
          =
          0
        
        
          
            L
            RA
          
          -
          1
        
      
      ⁢
      
        
          
            a
            
              k
              ,
              l
            
            
              (
              
                p
                ,
                RA
              
              )
            
          
          ·
          
            e
            
              j
              ⁢
              
                
              
              ⁢
              2
              ⁢
              
                π
                ⁡
                
                  (
                  
                    k
                    +
                    
                      Kk
                      1
                    
                    +
                    
                      k
                      _
                    
                  
                  )
                
              
            
          
        
        ⁢
        Δ
        ⁢
        
          
        
        ⁢
        
          
            f
            RA
          
          ⁡
          
            (
            
              t
              -
              
                
                  N
                  
                    CP
                    ,
                    l
                  
                  RA
                
                ⁢
                
                  T
                  c
                
              
              -
              
                t
                start
                RA
              
            
            )
          
        
      
    
  

  
    K
    =
    
      Δ
      ⁢
      
        
      
      ⁢
      
        f
        /
        Δ
      
      ⁢
      
        
      
      ⁢
      
        f
        RA
      
    
  

  
    
      k
      1
    
    =
    
      
        k
        0
        μ
      
      +
      
        
          N
          
            BWP
            ,
            i
          
          start
        
        ⁢
        
          N
          sc
          RB
        
      
      +
      
        
          n
          RA
          start
        
        ⁢
        
          N
          sc
          RB
        
      
      +
      
        
          n
          RA
        
        ⁢
        
          N
          RB
          RA
        
        ⁢
        
          N
          sc
          RB
        
      
      -
      
        
          N
          grid
          
            size
            ,
            μ
          
        
        ⁢
        
          
            N
            sc
            RB
          
          /
          2.