Data processing method and data processing apparatus

A data processing method, comprising:

• receiving, by a decoding circuit, m demodulated data streams using m receive ports respectively, wherein m is an integer greater than 1, wherein the m receive ports are in a one-to-one correspondence with the m demodulated data streams, wherein the m demodulated data streams comprise m×m data units, wherein each data stream of the m demodulated data streams comprises m data units, wherein the m×m data units form an m−order matrix C, wherein the m×m data units are m×m elements in the matrix C, wherein m 1×m matrices in the matrix C are in a one-to-one correspondence with the m demodulated data streams, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix C are received at a same time, and wherein among m elements located in a same 1×m matrix of the m 1×m matrices in the matrix C, an element located on a right side is received earlier than an element located on a left side;
• keeping, by the decoding circuit, a location of one element in each row in the matrix C unchanged and moving remaining m−1 elements to remaining m−1 rows respectively in order to form an m−order matrix D, wherein a column number of each element in the remaining m−1 elements in the matrix C before the element is moved equals a column number of the element in the remaining m−1 elements in the matrix D after the element is moved, and wherein the m×m elements in the matrix C are in a one-to-one correspondence with m×m elements in the matrix D;
• and
• sending, by the decoding circuit, the m×m elements in the matrix D using m transmit ports, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix D are sent at a same time, wherein among m elements located in a same 1×m matrix of m 1×m matrices in the matrix D, an element located on a right side is sent by the decoding circuit earlier than an element located on a left side, wherein the m×m elements in the matrix C are denoted by cij, wherein the m×m elements in the matrix D are denoted by dij, wherein i=1, . . ., m, wherein j=1, . . ., m, wherein dij=cyj, and wherein a value of y is:
• y=i−k when i−k>0;
• y=i−k+m when i−k≤0;
• y=i+k when i+k≤m;
• and
• y=i+k−m when i+k>m,
• wherein k is an integer greater than or equal to 0 and less than m, and
• wherein m elements in a same row in the matrix D correspond to different k values respectively.

A data processing apparatus, comprising:

• a receiver configured to receive m data streams using m receive ports respectively, wherein m is an integer greater than 1, wherein the m receive ports are in a one-to-one correspondence with the m data streams, wherein the m data streams comprise m×m data units, wherein each data stream of the m data streams comprises m data units, wherein the m×m data units form an m-order matrix A, wherein the m×m data units are m×m elements in the matrix A, wherein m 1×m matrices in the matrix A are in a one-to-one correspondence with the m data streams, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix A are received at a same time, and wherein among m elements located in a same 1×m matrix of the m 1×m matrices in the matrix A, an element located on a right side is received earlier than an element located on a left side;
• a processor coupled to the receiver and configured to keep a location of one element in each row in the matrix A received by the receiver unchanged and move remaining m−1 elements to remaining m−1 rows respectively in order to form an m−order matrix B, wherein a column number of each element in the remaining m−1 elements in the matrix A before the element is moved equals a column number of the element in the remaining m−1 elements in the matrix B after the element is moved, and wherein the m×m elements in the matrix A are in a one-to-one correspondence with m×m elements in the matrix B;
• and
• a transmitter coupled to the receiver and the processor and configured to send, using m transmit ports, the m×m elements in the matrix B generated by the processor to m different levels of a pulse amplitude modulation (PAM) circuit respectively to perform modulation, wherein m 1×m matrices in the matrix B are in a one-to-one correspondence with the m different levels of the PAM circuit, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix B are sent at a same time, wherein among m elements located in a same 1×m matrix of the m 1×m matrices in the matrix B, an element located on a right side is sent earlier than an element located on a left side, wherein the m×m elements in the matrix A are denoted by aij, wherein the m×m elements in the matrix B are denoted by bij, wherein i=1, . . ., m, wherein j=1, . . ., m, wherein bij=axj, and wherein a value of x is:
• x=i+k when i+k≤m;
• x=i+k−m when i+k>m;
• x=i−k when i−k>0;
• and
• x=i−k+m when i−k≤0,
• wherein k is an integer greater than or equal to 0 and less than m, and
• wherein m elements in a same row in the matrix B correspond to different k values respectively.

A data processing apparatus, comprising:

• a receiver configured to receive m demodulated data streams using m receive ports respectively, wherein m is an integer greater than 1, wherein the m receive ports are in a one-to-one correspondence with the m demodulated data streams, wherein the m demodulated data streams comprise m×m data units, wherein each data stream of the m demodulated data streams comprises m data units, wherein the m×m data units form an m−order matrix C, wherein the m×m data units are m×m elements in the matrix C, wherein m 1×m matrices in the matrix C are in a one-to-one correspondence with the m demodulated data streams, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix C are received at a same time, and wherein among m elements located in a same 1×m matrix of the m 1×m matrices in the matrix C, an element located on a right side is received earlier than an element located on a left side;
• a processor coupled to the receiver and configured to keep a location of one element in each row in the matrix C received by the receiver unchanged and move remaining m−1 elements to remaining m−1 rows respectively in order to form an m−order matrix D, wherein a column number of each element in the remaining m−1 elements in the matrix C before the element is moved equals a column number of the element in the remaining m−1 elements in the matrix D after the element is moved, and wherein the m×m elements in the matrix C are in a one-to-one correspondence with m×m elements in the matrix D;
• and
• a transmitter coupled to the receiver and the processor and configured to send, using m transmit ports, the m×m elements in the matrix D generated by the processor, wherein m elements located in a same m×1 matrix of m m×1 matrices in the matrix D are from the transmitter at a same time, wherein among m elements located in a same 1×m matrix of m 1×m matrices in the matrix D, an element located on a right side is sent earlier than an element located on a left side, wherein the m×m elements in the matrix C are denoted by cij, wherein the m×m elements in the matrix D are denoted by dij, wherein i=1, . . ., m, wherein j=1, . . ., m, wherein dij =cyj, and wherein a value of y is:
• y=i−k when i−k>0;
• y=i−k+m when i−k≤0;
• y=i+k when i+k≤m;
• and
• y=i+k−m when i+k>m,
• wherein k is an integer greater than or equal to 0 and less than m, and
• wherein m elements in a same row in the matrix D correspond to different k values respectively.