Patent ID: 11876664
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A transmission method, comprising:
generating modulated 16-quadrature amplitude modulation (QAM) points s1(i) by using bits of a first stream and generating modulated quadrature phase shift keying (QPSK) points s2(i) by using bits of a second stream, where i is an integer greater than or equal to 0;
converting the modulated 16-QAM points s1(i) to first converted points z1(i) and converting the modulated QPSK points s2(i) to second converted points z2(i), wherein converting the modulated 16-QAM points s1(i) to the first converted points z1(i) and converting the modulated QPSK points s2(i) to the second converted points z2(i) includes multiplying, (
       
        
         
          
           s
           ⁢
           1
           ⁢
           
            (
            i
            )
           
          
         
        
        
         
          
           s
           ⁢
           2
           ⁢
           
            (
            i
            )
           
          
         
        
       
       )
      
      ⁢
         
      by
      ⁢
         
      
       (
       
        
         
          
           
            4
            /
            3
           
          
         
         
          0
         
        
        
         
          0
         
         
          
           
            2
            /
            3
           
          
         
        
       
       )
      
     
     ;
    
   
   
    
     (
     i
     )
    
   
  
 

generating one or more signals that include the first converted points z1(i) and the second converted points z2(i); and
transmitting the one or more signals.