Patent ID: 11923930
Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A high-dimensional signal transmission method, wherein in the method, a transmitter for processing and sending an original signal, a receiver for receiving a signal and recovering the original signal, and a plurality of subchannels for the transmitter and the receiver are provided; the plurality of subchannels comprise: time domain, frequency domain, space domain and code domain subchannels; and the high-dimensional signal transmission method comprises the following steps:
step 1: generating, by the transmitter, M M-dimensional precoding signals α1(t), α2(t), . . . , αM(t), and generating, by the receiver, M M-dimensional matched signals β1(t), β2(t), . . . , βM(t), wherein M is equal to a number of the subchannels, the precoding signals and the matched signals satisfy: βiH(t)diag, (
    
     
      α
      i
     
     (
     t
     )
    
    )
   
   =
   
    [
    
     
      
       
        
         1
        
        
         1
        
        
         …
        
        
         1
        
       
      
      ︸
     
     
      M
       
      ↑
     
    
    ]
   
  
  ,
 

 diag(αi(t)) represents a diagonal matrix composed of αi(t) elements, βiH(t) represents a conjugate transposition of βiH(t), and i=1, 2, 3, . . . , M; wherein the transmitter is configured to generate the M-dimensional precoding signals;
step 2: generating, by the transmitter, M M-dimensional first signals s1(t), s2(t), . . . , sM(t) according to M original signals q1(t), q2(t), . . . , qM(t), wherein the transmitter is further configured to generate the M-dimensional first signals, and wherein the original signals represent to-be-sent data signals, and the generated first signals satisfy:

βiH(t)diag(αi(t))si(t)=qi(t)

step 3: generating, by the transmitter, M M-dimensional second signals x1(t), x2(t), . . . , xM(t) according to the precoding signals and the first signals, and wherein the transmitter is further configured to generate the M-dimensional second signals, and wherein a generation method of the transmitter is as follows:

xj(t)=diag(αj(t))sj(t),j=1,2, . . . ,M 

summing up, by the transmitter, all of the second signals to obtain an M-dimensional transmission signal, y
    ⁡
    (
    t
    )
   
   =
   
    
     ∑
     
      j
      =
      1
     
     M
    
    
     
      x
      j
     
     (
     t
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  ,
 

 and sending the transmission signal to the receiver by M subchannels, wherein one subchannel is used to send one dimension of the transmission signal, wherein the transmitter is further configured to sum up all of the second signals, and wherein the transmitter is further configured to use the M subchannels to improve communication quality and maintain throughput; and
step 4: sending, by the transmitter, the transmission signal y(t) to the receiver, estimating, by the receiver, the transmission signal y(t) to obtain a received signal r(t), and generating by the receiver, an estimation of the M original signals according to the matched signals and the received signal, wherein the receiver is configured to obtain the received signal and in response to the obtained received signal generate the estimation of the M original signals, and wherein the generation method of the configured receiver is as follows:

ŝi(t)=βiH(t)r(t),i=1,2, . . . ,M 

ŝi(t) represents an estimation of an ith original signal.