Structured LDPC coding and decoding method and device
An LDPC code and coding method technology, applied in the decoding method and device, the coding field of structured low-density parity check codes, can solve the problems of inability to support incremental redundancy HARQ and flexibility, insufficiency, etc., to achieve coding and decoding performance effect
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Embodiment 1
[0112] An embodiment of the present invention provides a coding device for structured low-density parity-check code LDPC in digital communication, the structure of which is as follows figure 2 As shown, at least a processor 202 and a memory 201 are included.
[0113] The memory 201 is configured to at least store a fundamental matrix used in encoding.
[0114] The basic matrix includes a block A of Mb×Kb corresponding to systematic bits and a block B of Mb×Mb corresponding to parity bits, that is, Hb=[A,B], where hb ij Represent the elements of the ith row and j column of the basic matrix, i is the row index of the basic matrix, j is the column index of the basic matrix, Kb=Nb-Mb, Nb is an integer, and Kb is greater than or equal to 4 an integer of . i=1,...,Mb, j=1,...,Nb.
[0115] Described basic matrix Hb comprises one or more sub-matrixes, and described sub-matrix comprises: sub-matrix Hb1 of upper left corner and sub-matrix Hb2 of upper left corner, wherein, the numbe...
Embodiment 2
[0150] An embodiment of the present invention provides a decoding device for a structured low-density parity-check code LDPC in digital communication, the structure of which is as follows Figure 4 As shown, at least a processor 402 and a memory 401 are included.
[0151] The memory 401 is configured to at least store a fundamental matrix used in encoding. The basic parity check matrix includes the following features:
[0152] The basic matrix includes a block A of Mb×Kb corresponding to systematic bits and a block B of Mb×Mb corresponding to parity bits, that is, Hb=[A,B], where hb ij Represent the elements of the ith row and j column of the basic matrix, i is the row index of the basic matrix, j is the column index of the basic matrix, Kb=Nb-Mb, Kb is an integer greater than or equal to 4, Nb is an integer. i=1,...,Mb, j=1,...,Nb.
[0153] Described basic matrix Hb comprises one or more sub-matrixes, and described sub-matrix comprises: sub-matrix Hb1 of upper left corner...
Embodiment 3
[0184] The embodiment of the present invention provides a coding method of a structured LDPC code, and the process of using this method to complete LDPC coding is as follows: Figure 5 shown, including:
[0185] Step 501, determine the basic matrix Hb used for encoding;
[0186] Optionally, the basic parity check matrix includes the following features:
[0187] The basic matrix includes a block A of Mb×Kb corresponding to systematic bits and a block B of Mb×Mb corresponding to parity bits, that is, Hb=[A,B], where hb ij Represent the elements of the ith row and j column of the basic matrix, i is the row index of the basic matrix, j is the column index of the basic matrix, Kb=Nb-Mb, Kb is an integer greater than or equal to 4, Nb is an integer. i=1,...,Mb, j=1,...,Nb.
[0188] Optionally, the basic matrix Hb at least further includes the following features: the basic matrix Hb includes one or more sub-matrices, and the sub-matrices include: the upper left sub-matrix Hb1 and...
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