Patent ID: 11909571
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 22:
23. A non-transitory computer-readable storage medium comprising instructions which, when executed by at least one processor, cause the at least one processor to perform operations comprising:
determining a first sequence {x(n)} based on a preset condition, wherein the preset condition is, x
      n
    
    =
    
      A
      ·
      
        e
        
          
            j
            ×
            π
            ×
            
              s
              n
            
          
          8
        
      
    
  
  ,, wherein a length of the first sequence is K=6, A is a non-zero complex number, and j=√{square root over (−1)}, and wherein a sequence {s(n)} is {7, 5, −1, −7, −3, 1};
generating a reference signal of a first signal, wherein the first signal is a signal modulated by using π/2 binary phase shift keying (BPSK), and the reference signal is generated by using the first sequence; and
sending the reference signal on a first frequency-domain resource, wherein the first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, and

k=u+L×n+delta,

wherein L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.