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Method and device for processing overlapping code sequences based on code structure
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A technology of overlapping coding and processing method, applied in the field of digital communication, can solve problems such as insufficient gain of overlapping coding, and achieve the effect of improving the gain
Active Publication Date: 2017-07-21
ZTE CORP
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[0004] The technical problem to be solved by the present invention is to provide a method and device for processing overlapping code sequences based on code structure, so as to solve the problem of insufficient gain of existing overlapping codes
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Embodiment 1
[0116] Corresponding to the above method embodiments, the present invention also provides an embodiment of a code structure-based overlapping code sequence processing device 1, such as Figure 8 Shown, this device embodiment 1 comprises:
[0117] The row number sequence generation module is used to analyze the row redistribution of each row of the k-row generation matrix, arrange the row numbers of the generation matrix in ascending order of row weight, and generate a row number sequence including k row numbers;
[0118] The overlapping processing module is used to perform overlapping processing on each group of information sequences, wherein each group of information sequences includes k-m bits, and the last m bits are overlapping parts;
[0119] A correspondence relationship establishment module, configured to sequentially establish the correspondence relationship between each bit of each group of overlapping information sequences and each line number in the line number sequ...
Embodiment 2
[0123] Corresponding to the foregoing method embodiments, the present invention also provides another embodiment of code structure-based overlapping code sequence processing device 2, such as Figure 9 Shown, this device embodiment 2 comprises:
[0124] The column number sequence generation module is used to analyze the ring density distribution of the N-k+1 to N columns of the check matrix, arrange the column numbers of the k columns in order of ring density from large to small, and generate k columns The column number sequence of the number;
[0125] The overlapping processing module performs overlapping processing on each group of information sequences, wherein each group of information sequences includes k-m bits, and the latter m bits are overlapping parts;
[0126] A correspondence relationship establishment module, configured to sequentially establish the correspondence relationship between each bit of each group of overlapping information sequences and each column num...
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Abstract
The invention relates to a processing method and device of overlapped coding sequences based on a code structure. In order to solve the technical problems, the invention provides the processing method of the overlapping coding sequences based on the code structure. The processing method comprises the following steps of: analyzing the line weight distribution of the k lines of generation matrixes, and arranging line numbers of the generation matrixes according to the sequence of the line weights from small to large so as to generate a line-number sequence including k line numbers; performing overlapped processing on all groups of information sequences, wherein each information sequence comprises k-m bits, and the later m bits are overlapped parts; respectively establishing the corresponding relation between all bits of all groups of overlapped information sequences and all line numbers in the line number sequence in sequence; and performing ascending arrangement on all the bits of all the groups of overlapped information sequences so as to obtain all the groups of overlapped coding sequences. According to the processing method and device, the gain for overlapped coding is increased.
Description
technical field [0001] The invention relates to the field of digital communication, in particular to a method and device for processing overlapping coded sequences based on a code structure. Background technique [0002] Overlap coding is a method of constructing a long code through a short code, which refers to adding a fixed part of bits of an uncoded sequence to a fixed position of another uncoded sequence; at the same time, adding a fixed part of the added bit sequence to Other uncoded sequences go up at fixed positions. The overlapping structure constructs that the correlation between codes depends on the number of overlapping bits. In overlapping coding, overlapping is only a method of constructing coding sequences, and the coding of each information sequence after overlapping is selected according to the existing coding methods. When decoding, the public information part is used as a decoding breakthrough, and the successful decoding of one codeword increases the su...
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