Patent ID: 11924844
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 3:
4. The method according to claim 1, wherein plural N moving conveyances are considered and wherein optimizing the difference between the distance dk and the distance Dk is performed under the constraint that the same ratio Dk/dk is achieved for all the moving conveyances, including determining:, R
    k
  
  =
  
    
      
        
          d
          k
        
        ⁢
        
          
            1
            +
            
              
                Σ
                
                  i
                  =
                  1
                
                N
              
              ⁢
              D
              ⁢
              
                
                  L
                  i
                
                /
                
                  K
                  i
                
              
            
          
          
            
              Σ
              
                i
                =
                1
              
              N
            
            ⁢
            
              
                d
                i
              
              /
              
                K
                i
              
            
          
        
      
      -
      
        DL
        k
      
    
    
      K
      k
    
  

wherein Rk represents a ratio of downlink transmission resources allocated to the moving conveyance identified by k with respect to a total quantity Rtot of downlink transmission resources,
wherein Dk=DLk+Rk·Kk and Kk=Rtot·f(SNRk)/bk,
wherein DLk represents distance ahead said estimated location, for the moving conveyance identified by k, which is covered by the obstacle detection enhancement data transmitted to the on-board wireless radio unit of said moving conveyance identified by k up to the end of the transmission cycle Cn−1,
and wherein f(SNRk) represents the quality Qk of the wireless link between the on-board wireless radio unit of the moving conveyance identified by k and the server as a function of signal-to-noise ratio SNRk on said wireless link.