WO2018137544A1 - 数据的传输方法和装置 - Google Patents

数据的传输方法和装置 Download PDF

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Publication number
WO2018137544A1
WO2018137544A1 PCT/CN2018/073233 CN2018073233W WO2018137544A1 WO 2018137544 A1 WO2018137544 A1 WO 2018137544A1 CN 2018073233 W CN2018073233 W CN 2018073233W WO 2018137544 A1 WO2018137544 A1 WO 2018137544A1
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base matrix
code rate
ldpc base
ldpc
matrix
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PCT/CN2018/073233
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English (en)
French (fr)
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余荣道
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0057Block codes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148Structural properties of the code parity-check or generator matrix
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • H04L1/0043Realisations of complexity reduction techniques, e.g. use of look-up tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0052Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables

Definitions

  • the present application relates to communication technologies, and in particular, to a data transmission method and apparatus.
  • LDPC Low-Density Parity-Check
  • 5G fifth generation mobile communication technology
  • 3GPP 3rd Generation Partnership Project
  • RAN Radio Access Network
  • the base matrix H b is That is, H b is a 2 ⁇ 3 matrix, and is expanded by a spreading factor of 2, wherein the element "1" in H b is replaced by a matrix obtained by rotating a 2 ⁇ 2 unit array by one bit right, and the element "0" is 2 ⁇ 2 Substituting the unit matrix, the element "-1" is replaced by a 2x2 0 matrix, that is, the extended 4x6 LDPC check matrix is:
  • the check matrices of the LDPC codes of different code rates are all extended according to the independent base matrix.
  • commonly used code rates are 1/3, 1/2, 2/3, 3/4, 5/6, etc., respectively
  • an LDPC base matrix is designed for different code rates and then extended, so 1/3 code rate LDPC code
  • 1/2 code rate LDPC has a base matrix, and so on.
  • the present invention provides a data transmission method and apparatus for solving the above problem.
  • the LDPC code rate supported by the system is large, a plurality of LDPC base matrices are required, which may result in a complicated system and an increase in coding complexity. .
  • the first aspect of the present application provides a data transmission method, including:
  • the sending device encodes the information bit sequence to be sent by using an LDPC check matrix to obtain a coded transmission sequence, where the LDPC check matrix is corresponding to the code rate of the information bit sequence obtained according to the preset base matrix transform process.
  • the LDPC base matrix is extended;
  • the transmitting device sends the transmission sequence to the receiving device.
  • the LDPC check matrix is not required to be designed for various code rates, and the base matrix corresponding to the required code rate can be obtained by simply transforming the preset base matrix, thereby obtaining a check matrix, thereby reducing the matrix.
  • the complexity of the system reduces coding complexity.
  • the method before the sending device encodes the information bit sequence to be sent by using an LDPC check matrix, the method further includes:
  • the transmitting device acquires an LDPC base matrix corresponding to a code rate of the information bit sequence
  • the transmitting device obtains the LDPC check matrix according to the LDPC base matrix extension.
  • the specific device that the sending device obtains the LDPC base matrix may be pre-configured, and may be configured in the protocol, or may be queried according to the configured code rate and the correspondence between the base matrix and the transformed code rate and the base matrix. Obtaining the required LDPC base matrix may also be in agreement with the receiving device, and the solution is not limited.
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • the LDPC base matrix used for encoding the information bit sequence can be obtained by querying according to the provisions in the protocol, and generally obtains a high code rate base by performing column expansion, row deletion, or row and column deletion on the base matrix of the low code rate.
  • the matrix, or column deletion, row expansion or row-column expansion of the high-rate rate base matrix to obtain a low-rate base matrix the following examples of common low-rate and high-code rate are used to illustrate the scheme.
  • the preset base matrix is a 16*24 LDPC base matrix of 1/3 code rate
  • the 16*24 LDPC base matrix of 1/3 code rate is extended by 120 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 80-row of the 96*144 LDPC base matrix of 1/3 code rate is deleted, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 96*144 LDPC base matrix of 1/3 code rate is deleted from 90 rows and 90 columns, and an LDPC base matrix of 8/9 code rate is obtained.
  • the 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 12 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 84 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is an 8*24 LDPC base matrix of 2/3 code rate
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 8 columns to obtain a 3/4 code rate LDPC base matrix;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 16 columns to obtain an LDPC base matrix of 4/5 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 24 columns to obtain an LDPC base matrix of 5/6 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 32 columns to obtain an LDPC base matrix of 6/7 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 40 columns to obtain an LDPC base matrix of 7/8 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 48 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 3*4 LDPC base matrix of 3/4 code rate
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 12 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 18 columns to obtain an LDPC base matrix of 6/7 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 30 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • the 120* column of the 16*144 LDPC base matrix of 8/9 code rate is deleted, and an LDPC base matrix of 1/3 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • a 16*144 LDPC base matrix of 8/9 code rate is extended by 80 lines to obtain an LDPC base matrix of 1/3 code rate.
  • the preset base matrix is a 6/54 LDPC base matrix of 8/9 code rate
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 2 rows and 2 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 6 rows and 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 10 rows and 10 columns to obtain an LDPC base matrix of 3/4 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 18 rows and 18 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 42 rows and 42 columns to obtain an LDPC base matrix of 1/2 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 90 rows and 90 columns, and an LDPC base matrix of 1/3 code rate is obtained.
  • a second aspect of the present application provides a data transmission method, including:
  • the receiving device decodes the transmission sequence by using an LDPC check matrix to obtain a decoded information bit sequence, where the LDPC check matrix is a code rate of the information bit sequence obtained according to a preset base matrix transform process.
  • the corresponding LDPC base matrix is extended.
  • the receiving device does not need to design an LDPC base matrix for various different code rates in the decoding process, and the base matrix corresponding to the required code rate can be obtained by simply transforming the preset base matrix, and then The extension gets the check matrix, which reduces the complexity of the system and reduces the coding complexity.
  • the method before the receiving device decodes the sending sequence by using the LDPC check matrix, the method further includes:
  • the receiving device acquires an LDPC base matrix corresponding to a code rate of the information bit sequence
  • the receiving device obtains the LDPC check matrix according to the LDPC base matrix extension.
  • the specific device that the receiving device obtains the LDPC base matrix may be pre-configured, and may be configured in the protocol, or may be queried according to the configured code rate and the correspondence between the base matrix and the transformed code rate and the base matrix. Obtain the required LDPC base matrix, which may also be in agreement with the sending device. This solution is not limited.
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • the LDPC base matrix used for decoding the information bit sequence can be obtained by querying according to the provisions in the protocol, generally by performing column expansion, row deletion, or row and column deletion on the low matrix rate base matrix to obtain a high code rate.
  • the base matrix is either a column deletion, a row extension, or a row-column expansion of a base matrix of a high code rate to obtain a base matrix of a low code rate. The following describes the scheme by using several common low code rates and high code rates.
  • the preset base matrix is a 16*24 LDPC base matrix of 1/3 code rate
  • the 16*24 LDPC base matrix of 1/3 code rate is extended by 120 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 80-row of the 96*144 LDPC base matrix of 1/3 code rate is deleted, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 96*144 LDPC base matrix of 1/3 code rate is deleted from 90 rows and 90 columns, and an LDPC base matrix of 8/9 code rate is obtained.
  • the 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 12 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 84 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is an 8*24 LDPC base matrix of 2/3 code rate
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 8 columns to obtain a 3/4 code rate LDPC base matrix;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 16 columns to obtain an LDPC base matrix of 4/5 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 24 columns to obtain an LDPC base matrix of 5/6 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 32 columns to obtain an LDPC base matrix of 6/7 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 40 columns to obtain an LDPC base matrix of 7/8 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 48 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 3*4 LDPC base matrix of 3/4 code rate
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 12 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 18 columns to obtain an LDPC base matrix of 6/7 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 30 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • the 120* column of the 16*144 LDPC base matrix of 8/9 code rate is deleted, and an LDPC base matrix of 1/3 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • a 16*144 LDPC base matrix of 8/9 code rate is extended by 80 lines to obtain an LDPC base matrix of 1/3 code rate.
  • the preset base matrix is a 6/54 LDPC base matrix of 8/9 code rate
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 2 rows and 2 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 6 rows and 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 10 rows and 10 columns to obtain an LDPC base matrix of 3/4 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 18 rows and 18 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 42 rows and 42 columns to obtain an LDPC base matrix of 1/2 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 90 rows and 90 columns, and an LDPC base matrix of 1/3 code rate is obtained.
  • a third aspect of the present application provides a data transmission apparatus, including:
  • a processing module configured to encode the information bit sequence to be sent by using an LDPC check matrix, to obtain a coded transmission sequence, where the LDPC check matrix is obtained according to a preset base matrix transform process and the information bit The LDPC base matrix corresponding to the code rate of the sequence is obtained;
  • a sending module configured to send the sending sequence to the receiving device.
  • processing module is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a fourth aspect of the present application provides a data transmission apparatus, including:
  • a receiving module configured to receive a sending sequence sent by the sending device
  • a processing module configured to decode a transmission sequence by using a low-density parity check LDPC check matrix to obtain a decoded information bit sequence; wherein the LDPC check matrix is obtained according to a preset base matrix transform process
  • the LDPC basis matrix corresponding to the code rate of the information bit sequence is extended.
  • processing module is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a transmitting device of the fifth aspect of the present application comprising:
  • a processor configured to encode the information bit sequence to be sent by using a low-density parity check LDPC check matrix to obtain a coded transmission sequence, where the LDPC check matrix is obtained according to a preset base matrix transform process Obtaining an LDPC basis matrix corresponding to a code rate of the information bit sequence;
  • a transmitter for transmitting a transmission sequence to a receiving device.
  • the processor is also used to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a memory may be further included, and the number of processors is at least one, and a computer execution instruction for executing the memory storage.
  • the transmission method of the data provided by the first aspect or the various embodiments of the first aspect is performed by causing the transmitting device to perform data interaction with the receiving device through the communication interface.
  • a sixth aspect of the present application provides a receiving device, including:
  • a receiver configured to receive a sending sequence sent by the sending device
  • a processor configured to decode a transmission sequence by using a low-density parity check LDPC check matrix to obtain a decoded information bit sequence; wherein the LDPC check matrix is obtained according to a preset base matrix transform process
  • the LDPC basis matrix corresponding to the code rate of the information bit sequence is extended.
  • the processor is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a memory may be further included, and the number of processors is at least one for executing an execution instruction of the memory storage.
  • the method for transmitting data provided by the second embodiment or the second embodiment of the second aspect is performed by causing the receiving device to perform data interaction with the transmitting device through the communication interface.
  • a seventh aspect of the present application provides a readable storage medium, where an execution instruction is stored, and when at least one processor of a transmitting device executes the execution instruction, the sending device performs the first aspect or the first aspect.
  • a method of transmitting data provided by an embodiment.
  • An eighth aspect of the present application provides a readable storage medium, where an execution instruction is stored, and when at least one processor of a receiving device executes the execution instruction, the receiving device performs the second aspect or the second aspect.
  • a method of transmitting data provided by an embodiment.
  • a ninth aspect of the present application provides a program product, the program product comprising an execution instruction stored in a readable storage medium.
  • At least one processor of the transmitting device can read the execution instructions from a readable storage medium, and the at least one processor executes the execution instructions such that the transmitting device implements the method of transmitting the data provided by the first aspect or the various embodiments of the first aspect.
  • a tenth aspect of the present application provides a program product, the program product comprising an execution instruction stored in a readable storage medium.
  • At least one processor of the receiving device may read the execution instruction from a readable storage medium, and the at least one processor executes the execution instruction such that the receiving device implements the data transmission method provided by the second aspect or the various embodiments of the second aspect .
  • the information bit sequence to be transmitted by the transmitting device is expanded again by using the LDPC base matrix corresponding to the code rate of the information bit sequence obtained by the preset base matrix transformation to obtain the required LDPC check.
  • the matrix is then subjected to an encoding process to obtain a coded transmission sequence, and the transmission sequence is sent to the receiving device, and the receiving device uses the LDPC check matrix obtained by the LDPC base matrix re-expanded according to the preset base matrix to be translated.
  • the code obtains the decoded information bit sequence to realize data transmission, and does not need to design an LDPC check matrix for various code rates, and mainly performs simple conversion on the preset base matrix to obtain a required check matrix, thereby Reduce the complexity of the system and reduce the coding complexity.
  • FIG. 1 is a schematic diagram of a system architecture of a data transmission method provided by the present application.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for transmitting data provided by the present application;
  • FIG. 3 is a schematic diagram of column expansion of a 1/3 code rate 16*24 base matrix provided by the present application.
  • FIG. 4 is a schematic diagram of column deletion of a base matrix of 8/9 code rate 16*144 provided by the present application;
  • 5 is a schematic diagram of line expansion of a base matrix of 8/9 code rate 16*144 provided by the present application.
  • FIG. 6 is a schematic diagram of row deletion of a base matrix of 1/3 code rate 96*144 provided by the present application.
  • FIG. 7 is a schematic diagram of a matrix expansion of a base matrix of 8/9 code rate s*9s provided by the present application.
  • FIG. 8 is a schematic diagram of row and column deletion of a base matrix of 8/9 code rate 96*144 provided by the present application.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a data transmission apparatus provided by the present application.
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of a data transmission apparatus provided by the present application.
  • FIG. 11 is a schematic structural diagram of an embodiment of a sending device provided by the present application.
  • FIG. 12 is a schematic structural diagram of an embodiment of a receiving device provided by the present application.
  • the present application proposes an LDPC code rate matching.
  • the method is used for LDPC coding to realize data transmission.
  • the information bit sequence is obtained, and the information bit sequence is encoded by using an LDPC check matrix based on an m b ⁇ n b basis matrix H b , and is expanded to an m ⁇ n LDPC check by a spreading factor z.
  • the specific manner of obtaining the LDPC check matrix may be: based on a low code rate LDPC base matrix, by using column expansion or row deletion or row and column deletion, other high-rate LDPC basis matrices are obtained, and the required LDPC check is extended again.
  • FIG. 1 is a schematic structural diagram of a system for transmitting data according to the present application.
  • the system architecture includes a network device (for example, a base station) and a terminal, and the network device and the terminal may also be Wifi access points.
  • the network device can be used as both a transmitting device and a receiving device.
  • the same terminal can also be used as a transmitting device or a receiving device.
  • the number of network devices and terminals in this solution is not limited.
  • the network device transmits downlink data to the terminal, where the data is LDPC coded by using an LDPC check matrix, and the LDPC coded sequence is transmitted to the terminal after being modulated and the like; the terminal transmits uplink data to the base station, and the uplink data may also be performed by using an LDPC check matrix.
  • LDPC coding the LDPC coded sequence is modulated and transmitted to the base station. In the process of transmitting uplink data or downlink data, a subsequently provided method can be adopted.
  • the network device is a base station on the network side or another device capable of providing a base station function, and provides a communication service for the terminal device;
  • the terminal is a device that needs to perform uplink and downlink data interaction on the user side, for example, a mobile phone, a tablet computer, and the like.
  • the network device may also be a terminal that assumes the function of the base station.
  • the base station is also called a Radio Access Network (RAN) device, and is a device for accessing a terminal to a wireless network.
  • RAN Radio Access Network
  • the base station in the above architecture may also be a global mobile communication (Global System of Mobile communication, GSM) or Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA), or base station in Wideband Code Division Multiple Access (WCDMA) ( NodeB, NB), may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, or a base station in a 5G network, etc. Not limited.
  • GSM Global System of Mobile communication
  • BTS Base Transceiver Station
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • NodeB, NB NodeB
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolution
  • 5G network a 5G network
  • FIG. 2 is a schematic flowchart of Embodiment 1 of a data transmission method provided by the present application.
  • a base station or a terminal may serve as a sending device or a receiving device.
  • the specific steps include the following steps:
  • the sending device encodes the information bit sequence to be sent by using an LDPC check matrix to obtain a coded transmission sequence, where the LDPC check matrix is a code rate corresponding to the information bit sequence obtained according to the preset base matrix transform process.
  • the LDPC base matrix is extended.
  • the sending device before sending the data, the sending device needs to encode the information bit sequence to be sent and then transmit, so the transmitting device needs to obtain an LDPC check matrix.
  • the bit rate of the information bit sequence The corresponding LDPC base matrix does not need to be re-constructed. Only a simple conversion of the preset base matrix is needed to obtain a code rate corresponding LDPC base matrix, and the LDPC base matrix is extended to obtain a required LDPC check matrix.
  • the transmitting device can read the conversion manner corresponding to the code rate of the information bit sequence to be transmitted, which is specified in the protocol, for example, deleting the X column, adding the X line, deleting the X line, adding X Column, or delete X rows and X columns, or add X rows and X columns and other transformations.
  • the specific transformation of the LDPC base matrix required by the base matrix transformation may be obtained by the network device, or may be obtained by the sending device and the receiving device protocol, or may be pre-configured on the transmitting device side. There are no restrictions on this program.
  • the transmitting device After obtaining the required LDPC check matrix, the transmitting device performs LDPC encoding on the information bit sequence to obtain a transmission sequence.
  • S102 The sending device sends the sending sequence to the receiving device.
  • the sending device maps the obtained sending sequence to the corresponding resource and transmits it to the receiving device, and the receiving device can receive the sending sequence sent by the sending device.
  • the receiving device decodes the transmission sequence by using an LDPC check matrix to obtain a decoded information bit sequence, where the LDPC check matrix is a code rate corresponding to the information bit sequence obtained according to the preset base matrix transform process.
  • the LDPC base matrix is extended.
  • the receiving device needs to decode the received transmission sequence to obtain the information bit sequence. Therefore, the receiving device needs to obtain the LDPC check matrix used by the sending device, and needs to obtain the code rate corresponding to the sending sequence.
  • the LDPC base matrix is the same as the transmitting device.
  • the receiving device obtains the LDPC base matrix by changing the base matrix according to the received conversion manner of the received network device, or may be obtained by a protocol with the transmitting device.
  • the mapping relationship between the specified code rate, the base matrix, and the transform mode of the LDPC base matrix converted to other code rates may be read, and then the base matrix is transformed to obtain the LDPC base matrix, and the LDPC base matrix is further extended to obtain the required LDPC. Check matrix.
  • the receiving device After obtaining the LDPC check matrix, the receiving device decodes the transmission sequence sent by the received sending device, and obtains the transmitted information bit sequence after the decoding and verification are successful.
  • both the transmitting device and the receiving device need to obtain an LDPC base matrix, which is different from the prior art for designing a base matrix for each code rate.
  • all required LDPC base matrices corresponding to the code rate are It can be obtained according to the same base matrix transformation process.
  • the transmitting device or the receiving device performs transform processing according to the preset base matrix. It is also possible to specify all the transformation modes of the preset base matrix and the transformation manner of the base matrix of different code rates that can be transformed in the protocol, and the transmitting device and the receiving device only need to read the protocol when needed.
  • the specified conversion method can be converted, and there is no limitation on this solution.
  • the information bit sequence to be transmitted by the transmitting device is extended again by using the LDPC base matrix obtained by the base matrix transformation, and then the LDPC check matrix is obtained, and then the coding process is performed to obtain the encoded transmission.
  • the sequence is sent to the receiving device, and the receiving device uses the LDPC base matrix obtained by transforming according to the preset base matrix to obtain an LDPC check matrix, and then performs decoding to obtain a decoded information bit sequence.
  • the simple verification of the preset base matrix can obtain the required check matrix, thereby reducing the complexity of the system and reducing the coding complexity.
  • the transmission method provided by the present application adopts a rate matching method of an LDPC code for LDPC coding.
  • the specific form obtained by changing the LDPC base matrix adopted by the sending device or the receiving device from the preset base matrix is provided below.
  • the LDPC base matrix of high code rate is obtained by the column expansion of the check matrix.
  • FIG. 3 is a schematic diagram of column expansion of a 1/3 code rate 16*24 base matrix provided by the present application. As shown in FIG. 3, column expansion is performed based on a 1/3 code rate LDPC code base matrix to obtain other high code rates. LDPC base matrix.
  • the 1/3 bit rate LDPC base matrix size is determined as follows.
  • the constellation modulation modes supported by the communication system are: QPSK, 16QAM, 64QAM, 256QAM, where one QPSK constellation point corresponds to 2 bits, one 16QAM constellation point corresponds to 4 bits, one 64QAM constellation point corresponds to 6 bits, and one 256QAM constellation point corresponds to 8 bits,
  • the LDPC base matrix column number nb is an integer multiple of 24 or 24.
  • the matrix is expanded by a column. As shown in FIG. 3, the number of columns to be expanded is X, and a constant t is set. According to the calculation formula of the code rate, it is known that:
  • the LDPC base matrix of 1/3 code rate is 16j ⁇ 24j (j is a positive integer greater than 1,) the extended column X in the corresponding (1) to (8) It is an integer multiple of X in the original (1) to (8).
  • the LDPC check matrix of the required code rate is used for LDPC encoding by using the LDPC check matrix.
  • the column of the check matrix is deleted to obtain a low bit rate LDPC basis matrix.
  • FIG. 4 is a schematic diagram of column deletion of a base matrix of 8/9 code rate 16*144 provided by the present application.
  • an LDPC basis matrix based on an 8/9 code rate is obtained by column deletion of a parity check matrix.
  • Low bit rate LDPC base matrix is an integer multiple of 144 or 144.
  • Column deletion is performed on the matrix.
  • the number of columns to be deleted is X, and a constant t is set. According to the calculation formula of the code rate, it is known:
  • the deleted column X in the corresponding (1) to (8) It is an integer multiple of X in the original (1) to (8).
  • the LDPC check matrix of the required code rate is used for LDPC encoding by using the LDPC check matrix.
  • FIG. 5 is a schematic diagram of line expansion of a base matrix of 8/9 code rate 16*144 provided by the present application.
  • the check matrix is extended based on an 8/9 code rate LDPC code base matrix.
  • a low bit rate LDPC basis matrix is obtained.
  • the number of columns of the LDPC base matrix of 8/9 code rate is taken as an integral multiple of 144 or 144.
  • the matrix is expanded in rows, as shown in FIG. 5, the number of rows for performing row expansion is X. Set the constant t, according to the calculation formula of the code rate:
  • the LDPC basis matrix of the 8/9 code rate is 16j ⁇ 144j (j is a positive integer greater than 1)
  • the corresponding number of lines in (1) to (6) is expanded to the number of lines.
  • X is an integer multiple of X in the original (1) to (6).
  • the check matrix is deleted, and a high code rate LDPC basis matrix is obtained.
  • FIG. 6 is a schematic diagram of row deletion of a 1/3 code rate 96*144 base matrix provided by the present application.
  • the LDPC base matrix based on a 1/3 code rate is deleted by a matrix row to obtain a high code. Rate of LDPC basis matrix.
  • the number of 1/3 bit rate LDPC base matrix columns is an integer multiple of 144 or 144.
  • Rows are deleted from the matrix.
  • the number of rows to be deleted is X
  • the code rate after row deletion is (t+1)/(t+2), then:
  • X (96t+48)/(t+2), in order to ensure that X is an integer, t takes the value 7, 6, 4, 2, 1, so:
  • the LDPC base matrix of 1/3 code rate is 96j ⁇ 144j (j is a positive integer greater than 1,) the number of deleted lines in the corresponding (1) to (6) X is an integer multiple of X in the original (1) to (6).
  • the LDPC check of the required code rate is obtained.
  • the matrix is further LDPC encoded by using the LDPC check matrix.
  • the check matrix is extended by rows and columns to obtain a low code rate LDPC code base matrix.
  • FIG. 7 is a schematic diagram of row and column expansion of a base matrix of 8/9 code rate s*9s provided by the present application.
  • the parity matrix is expanded by a matrix based on an 8/9 code rate LDPC code base matrix.
  • a low bit rate LDPC code base matrix is obtained.
  • the number of columns of the LDPC base matrix of 8/9 code rate is taken as an integral multiple of 9 s.
  • the following is an example in which the number of columns of the LDPC base matrix of 8/9 code rate is 9s, the LDPC code rate is 8/9, and the number of rows of the LDPC base matrix of the 8/9 code rate is s.
  • the matrix is expanded in rows and columns. As shown in FIG. 7, the number of rows to be expanded by the row is X, and the number of columns is expanded to the number of columns is X columns.
  • LDPC base matrix of the 8/9 code rate is a 6 ⁇ 54 matrix.
  • the LDPC basis matrix of the 8/9 code rate is 6j ⁇ 54j (j is a positive integer greater than 1)
  • the corresponding number of lines in (1) to (6) is expanded to X is an integer multiple of X in the original (1) to (6).
  • the LDPC check of the required code rate is obtained.
  • the matrix is further LDPC encoded by using the LDPC check matrix.
  • the matrix is deleted from the matrix to obtain a high code rate LDPC code base matrix.
  • FIG. 8 is a schematic diagram of row and column deletion of a base matrix of 8/9 code rate 96*144 provided by the present application.
  • an LDPC base matrix based on a 1/3 code rate is deleted by a row and column of a check matrix.
  • the LDPC base matrix of 1/3 code rate is 96j ⁇ 144j (j is a positive integer greater than 1,) the row of the row and column in the corresponding (1) to (6) is deleted.
  • the number of series X is an integer multiple of X in the original (1) to (6).
  • the common low code rate can also be 1/2, or 3/4, etc.
  • the above scheme is only an example of converting a base matrix of a low bit rate or a base matrix of a high code rate, and the specific implementation can be based on actual conditions. Make a selection and determine the way the row and column are converted according to the same principle as above.
  • the 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 12 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 12 ⁇ 24 LDPC base matrix of 1/2 code rate is extended by 84 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is an 8*24 LDPC base matrix of 2/3 code rate
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 8 columns to obtain a 3/4 code rate LDPC base matrix;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 16 columns to obtain an LDPC base matrix of 4/5 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 24 columns to obtain an LDPC base matrix of 5/6 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 32 columns to obtain an LDPC base matrix of 6/7 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 40 columns to obtain an LDPC base matrix of 7/8 code rate;
  • An 8 ⁇ 24 LDPC base matrix of 2/3 code rate is extended by 48 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 3*4 LDPC base matrix of 3/4 code rate
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 12 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 18 columns to obtain an LDPC base matrix of 6/7 code rate;
  • a 6 ⁇ 24 LDPC base matrix of 3/4 code rate is extended by 30 columns to obtain an LDPC base matrix of 8/9 code rate.
  • base code matrices such as 1/2 may be obtained by column expansion or row deletion or row and column deletion to obtain other high-rate LDPC base matrices, or may be other high-rate base matrices such as 7/8.
  • Column deletion or row expansion or row and column expansion obtains other low-rate LDPC basis matrices, and then expands to obtain the required LDPC check matrix for encoding or decoding processing after obtaining the base matrix corresponding to the required code rate. That is, the present application does not limit the specific code rate and the number of rows and columns, and can perform a simple transformation according to the above principle to obtain a check matrix of other code rates required, and can directly specify a row-column transformation method corresponding to a certain matrix matrix in the protocol. And the corresponding correspondence of the obtained base matrix of a certain code rate.
  • the above solution provided by the present application does not need to design an LDPC base matrix for various different code rates, thereby reducing the complexity of the system and making the coding simpler.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a data transmission apparatus provided by the present application. As shown in FIG. 9, the data transmission apparatus 10 includes:
  • the processing module 11 is configured to encode the information bit sequence to be sent by using an LDPC check matrix to obtain a coded transmission sequence, where the LDPC check matrix is obtained according to a preset base matrix transform process and the information bit sequence The code rate corresponding to the LDPC base matrix is extended;
  • the sending module 12 is configured to send the sending sequence to the receiving device.
  • the data transmission device provided in this embodiment is used to implement the technical solution of the sending device in any of the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the processing module 11 is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • the preset base matrix is a 16*24 LDPC base matrix of 1/3 code rate
  • the 16*24 LDPC base matrix of 1/3 code rate is extended by 120 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 80-row of the 96*144 LDPC base matrix of 1/3 code rate is deleted, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 96*144 LDPC base matrix of 1/3 code rate is deleted from 90 rows and 90 columns, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • the 120* column of the 16*144 LDPC base matrix of 8/9 code rate is deleted, and an LDPC base matrix of 1/3 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • a 16*144 LDPC base matrix of 8/9 code rate is extended by 80 lines to obtain an LDPC base matrix of 1/3 code rate.
  • the preset base matrix is a 6/54 LDPC base matrix of 8/9 code rate
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 2 rows and 2 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 6 rows and 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 10 rows and 10 columns to obtain an LDPC base matrix of 3/4 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 18 rows and 18 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 42 rows and 42 columns to obtain an LDPC base matrix of 1/2 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 90 rows and 90 columns, and an LDPC base matrix of 1/3 code rate is obtained.
  • the data transmission device provided by any one of the foregoing implementations is used to implement the technical solution of the sending device in any of the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of a data transmission apparatus provided by the present application. As shown in FIG. 10, the data transmission apparatus 20 includes:
  • the receiving module 21 is configured to receive a sending sequence sent by the sending device.
  • the processing module 22 is configured to decode the transmission sequence by using an LDPC check matrix to obtain a decoded information bit sequence, where the LDPC check matrix is a code rate of the information bit sequence obtained according to the preset base matrix transform process.
  • the corresponding LDPC base matrix is extended.
  • the data transmission device provided in this embodiment is used to implement the technical solution of the receiving device in any of the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.
  • processing module 22 is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • the preset base matrix is a 16*24 LDPC base matrix of 1/3 code rate
  • the 16*24 LDPC base matrix of 1/3 code rate is extended by 120 columns to obtain an LDPC base matrix of 8/9 code rate.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 80-row of the 96*144 LDPC base matrix of 1/3 code rate is deleted, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 1/3 code rate 96*144 LDPC base matrix
  • the 96*144 LDPC base matrix of 1/3 code rate is deleted from 90 rows and 90 columns, and an LDPC base matrix of 8/9 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • the 120* column of the 16*144 LDPC base matrix of 8/9 code rate is deleted, and an LDPC base matrix of 1/3 code rate is obtained.
  • the preset base matrix is a 16/144 LDPC base matrix of 8/9 code rate
  • a 16*144 LDPC base matrix of 8/9 code rate is extended by 80 lines to obtain an LDPC base matrix of 1/3 code rate.
  • the preset base matrix is a 6/54 LDPC base matrix of 8/9 code rate
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 2 rows and 2 columns to obtain an LDPC base matrix of 5/6 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 6 rows and 6 columns to obtain an LDPC base matrix of 4/5 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 10 rows and 10 columns to obtain an LDPC base matrix of 3/4 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 18 rows and 18 columns to obtain an LDPC base matrix of 2/3 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 42 rows and 42 columns to obtain an LDPC base matrix of 1/2 code rate;
  • a 6*54 LDPC base matrix of 8/9 code rate is extended by 90 rows and 90 columns, and an LDPC base matrix of 1/3 code rate is obtained.
  • the data transmission device 20 provided by any of the foregoing implementation manners is used to implement the technical solution of the receiving device in any of the foregoing method embodiments, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of an embodiment of a sending device provided by the present application. As shown in FIG. 11, the sending device 30 includes:
  • the processor 31 is configured to encode the information bit sequence to be transmitted by using a low density parity check LDPC check matrix to obtain a coded transmission sequence, where the LDPC check matrix is obtained according to a preset base matrix transform process.
  • the LDPC base matrix corresponding to the code rate of the information bit sequence is extended;
  • the transmitter 32 is configured to send the transmission sequence to the receiving device.
  • the processor 31 is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a memory may be further included, and the number of processors is at least one, and a computer execution instruction for executing the memory storage.
  • the transmission method of the data provided by the foregoing various embodiments is performed by causing the transmitting device to perform data interaction with the receiving device through the communication interface.
  • FIG. 12 is a schematic structural diagram of an embodiment of a receiving device provided by the present application. As shown in FIG. 12, the receiving device 40 includes:
  • the receiver 41 is configured to receive a sending sequence sent by the sending device.
  • the processor 42 is configured to decode the transmission sequence by using a low-density parity check LDPC check matrix to obtain a decoded information bit sequence, where the LDPC check matrix is obtained by using a preset base matrix transform process.
  • the bit rate of the bit sequence is obtained by extending the LDPC base matrix corresponding to the bit rate.
  • the processor 42 is further configured to:
  • the LDPC base matrix is obtained by performing column expansion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing line deletion processing according to a preset base matrix of a low code rate
  • the LDPC base matrix is obtained by performing row and column deletion processing according to a preset base matrix of a low code rate.
  • the LDPC base matrix is obtained by performing column deletion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing line expansion processing according to a preset base matrix of a high code rate
  • the LDPC base matrix is obtained by performing row and column expansion processing according to a preset base matrix of a high code rate.
  • a memory may be further included, and the number of processors is at least one for executing an execution instruction of the memory storage.
  • the data transmission method provided by the various embodiments described above is performed by causing the receiving device to perform data interaction with the transmitting device through the communication interface.
  • the present application further provides a readable storage medium in which an execution instruction is stored, and when at least one processor of the transmitting device executes the execution instruction, the transmitting device executes the data transmission method provided by the various embodiments described above.
  • the present application further provides a readable storage medium in which an execution instruction is stored, and when at least one processor of the receiving device executes the execution instruction, the receiving device executes the data transmission method provided by the various embodiments described above.
  • the application also provides a program product comprising an execution instruction stored in a readable storage medium.
  • At least one processor of the transmitting device can read the execution instructions from a readable storage medium, and the at least one processor executes the execution instructions such that the transmitting device implements the method of transmitting data provided by the various embodiments described above.
  • the application also provides a program product comprising an execution instruction stored in a readable storage medium.
  • At least one processor of the receiving device can read the execution instructions from a readable storage medium, and the at least one processor executes the execution instructions such that the receiving device implements the method of transmitting data provided by the various embodiments described above.
  • the processor may be a central processing unit (English: Central Processing Unit, CPU for short), or may be other general-purpose processors, digital signal processors (English: Digital) Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in connection with the present application may be directly embodied by hardware processor execution or by a combination of hardware and software modules in a processor.
  • All or part of the steps of implementing the above method embodiments may be performed by hardware associated with the program instructions.
  • the aforementioned program can be stored in a computer readable memory.
  • the steps including the foregoing method embodiments are performed; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

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Abstract

本申请提供一种数据的传输方法和装置,该方法包括:发送设备将待发送的信息比特序列采用LDPC校验矩阵进行编码,得到编码后的发送序列;其中,所述LDPC校验矩阵为根据预设基矩阵进行变换处理得到信息比特序列的码率对应的基矩阵再次进行变换得到的,所述发送设备将所述发送序列发送给接收设备。该方案中,不需要针对各种不同码率设计LDPC基矩阵,主要对预设的基矩阵进行简单变换就可以得到需要的码率对应的基矩阵,从而降低了系统的复杂度,降低编码复杂度。

Description

数据的传输方法和装置
本申请要求于2017年1月25日提交中国专利局、申请号为201710061290.4、申请名称为“数据的传输方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术,尤其涉及一种数据的传输方法和装置。
背景技术
随着网络技术的发展以及移动终端设备的普及,用户使用移动终端设备发送或者接收数据的场景更加广泛,常用的数据编码的方式为低密度奇偶校验(Low-Density Parity-check,LDPC)编码,LDPC编码是一类具有稀疏校验矩阵的线性分组码,即校验矩阵中只有数量很少的元素是“1”,大部分都是“0”。LDPC利用矩阵的稀疏性,使得译码复杂度只与码长成线性关系,在码长较长的情况下仍然可以有效的进行译码,并具有更简单的译码算法。经研究表明,LDPC具有逼近香农极限的编码性能。第三代合作伙伴计划在(3rd Generation Partnership Project,3GPP)、无线接入网(Radio Access Network,RAN)86b次会议上,将LDPC正式作为为第五代移动通信技术(5th-Generation,5G)的信道编码方案。
目前的LDPC校验矩阵构造的一种方法是基于一个m b×n b基矩阵的基矩阵H b,通过扩展因子z,扩展为m×n的LDPC校验矩阵H,即m=z×m b,n=z×n b,其中n为LDPC码的码长,m为LDPC码校验比特数,相应地LDPC码信息比特长度为k=n-m。例如基矩阵H b
Figure PCTCN2018073233-appb-000001
即H b为2×3矩阵,以扩展因子2进行扩展,其中H b中的元素“1”用2×2的单位阵右旋转一位得到的矩阵代替,元素“0”用2×2的单位阵代替,元素“-1”用2×2的0矩阵代替,即扩展后的4×6的LDPC校验矩阵为:
Figure PCTCN2018073233-appb-000002
在上述方案中,不同码率的LDPC码的校验矩阵都是根据独自的基矩阵进行扩展。比如常用的码率有1/3,1/2,2/3,3/4,5/6等,针对不同的码率分别设计一个LDPC基矩阵再进行扩展,因此1/3码率LDPC码有一个基矩阵,1/2码率LDPC有一个基矩阵,如此类推。当系统支持的LDPC码率很多时,就需要很多个LDPC基矩阵,这样会导致系统比较复杂,也增加了编码的复杂度。
发明内容
本申请提供一种数据的传输方法和装置,用于解决上述当系统支持的LDPC码率很多时,就需要很多个LDPC基矩阵,这样会导致系统比较复杂,也增加了编码的复杂度的问题。
本申请第一方面提供一种数据的传输方法,包括:
发送设备将待发送的信息比特序列采用LDPC校验矩阵进行编码,得到编码后的发送序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
发送设备将发送序列发送给接收设备。
在本方案中,不需要针对各种不同码率设计LDPC校验矩阵,主要对预设的基矩阵进行简单变换就可以得到需要的码率对应的基矩阵,从而得到校验矩阵,从而降低了系统的复杂度,降低编码复杂度。
一种可能的实施方式中,发送设备将待发送的信息比特序列采用LDPC校验矩阵进行编码之前,方法还包括:
所述发送设备获取与所述信息比特序列的码率对应的LDPC基矩阵;
所述发送设备根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
发送设备获取该LDPC基矩阵的具体设备可以是预先配置的,即可在协议中配置好的,也可以是根据配置的码率以及基矩阵与变换后码率以及基矩阵的对应关系进行查询,获取需要的LDPC基矩阵,还可以是与接收设备协议的,对此本方案不做限制。
一种可能的实施方式中,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
一种可能的实施方式中,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
具体实现中,对信息比特序列进行编码使用的LDPC基矩阵可根据协议中的规定进行查询获取,一般是通过对低码率的基矩阵进行列扩展、行删除或者行列删除得到高码率的基矩阵,或者是对高码率的基矩阵进行列删除、行扩展或者行列扩展得到低码率的基矩阵,下面以常见的几种低码率和高码率为例,对本方案进行说明。
可选的,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
对1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/2码率的12*24LDPC基矩阵时,
Figure PCTCN2018073233-appb-000003
则X=12t,因此:
对1/2码率的12×24LDPC基矩阵扩展12列,得到2/3码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展24列,得到3/4码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展36列,得到4/5码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展48列,得到5/6码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展60列,得到6/7码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展72列,得到7/8码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展84列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为2/3码率的8*24LDPC基矩阵时,扩展X列,得到码率为
Figure PCTCN2018073233-appb-000004
则X=8(t-1),因此:
对2/3码率的8×24LDPC基矩阵扩展8列,得到3/4码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展16列,得到4/5码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展24列,得到5/6码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展32列,得到6/7码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展40列,得到7/8码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展48列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为3/4码率的6*24LDPC基矩阵时,扩展X列,得到码率为
Figure PCTCN2018073233-appb-000005
则X=8(t-1),因此:
对3/4码率的6×24LDPC基矩阵扩展6列,得到4/5码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展12列,得到5/6码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展18列,得到6/7码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展24列,得到7/8码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展30列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
对8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
本申请第二方面提供一种数据的传输方法,包括:
接收设备接收发送设备发送的发送序列;
接收设备采用LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的。
在本方案中,接收设备在译码过程中,不需要针对各种不同码率设计LDPC基矩阵,主要对预设的基矩阵进行简单变换就可以得到需要的码率对应的基矩阵,然后再次扩展得到校验矩阵,从而降低了系统的复杂度,降低编码复杂度。
在一种可能的实施方式中,接收设备采用LDPC校验矩阵对发送序列进行译码之前,方法还包括:
所述接收设备获取与所述信息比特序列的码率对应的LDPC基矩阵;
所述接收设备根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
接收设备获取该LDPC基矩阵的具体设备可以是预先配置的,即可在协议中配置好的,也可以是根据配置的码率以及基矩阵与变换后码率以及基矩阵的对应关系进行查询,获取需要的LDPC基矩阵,还可以是与发送设备协议的,对此本方案不做限制。
在一种可能的实施方式中,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
在一种可能的实施方式中,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
具体实现中,对信息比特序列进行译码使用的LDPC基矩阵可根据协议中的规定进行查询获取,一般是通过对低码率的基矩阵进行列扩展、行删除或者行列删除得到高码率的基矩阵,或者是对高码率的基矩阵进行列删除、行扩展或者行列扩展得到低码率的基矩阵,下面以常见的几种低码率和高码率为例,对本方案进行说明。
可选的,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
对1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
当预设的基矩阵为1/2码率的12*24LDPC基矩阵时,
Figure PCTCN2018073233-appb-000006
则X=12t,因此:
对1/2码率的12×24LDPC基矩阵扩展12列,得到2/3码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展24列,得到3/4码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展36列,得到4/5码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展48列,得到5/6码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展60列,得到6/7码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展72列,得到7/8码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展84列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为2/3码率的8*24LDPC基矩阵时,扩展X列,得到码率为
Figure PCTCN2018073233-appb-000007
则X=8(t-1),因此:
对2/3码率的8×24LDPC基矩阵扩展8列,得到3/4码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展16列,得到4/5码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展24列,得到5/6码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展32列,得到6/7码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展40列,得到7/8码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展48列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为3/4码率的6*24LDPC基矩阵时,扩展X列,得到码率 为
Figure PCTCN2018073233-appb-000008
则X=8(t-1),因此:
对3/4码率的6×24LDPC基矩阵扩展6列,得到4/5码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展12列,得到5/6码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展18列,得到6/7码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展24列,得到7/8码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展30列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
对8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
本申请第三方面提供一种数据的传输装置,包括:
处理模块,用于将待发送的信息比特序列采用LDPC校验矩阵进行编码,得到编码后的发送序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
发送模块,用于将发送序列发送给接收设备。
可选的,处理模块还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
本申请第四方面提供一种数据的传输装置,包括:
接收模块,用于接收发送设备发送的发送序列;
处理模块,用于采用低密度奇偶校验LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的。
可选的,处理模块还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
本申请第五方面一种发送设备,包括:
处理器,用于将待发送的信息比特序列采用低密度奇偶校验LDPC校验矩阵进行编码,得到编码后的发送序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
发送器,用于将发送序列发送给接收设备。
可选的,处理器还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
在上述发送设备中,还可以包括存储器,处理器的数量为至少一个,用来执行存储器存储的计算机执行指令。使得发送设备通过通信接口与接收设备之间进行数据交互来执行上述第一方面或者第一方面的各种实施方式提供的数据的传输方法。
本申请第六方面提供一种接收设备,包括:
接收器,用于接收发送设备发送的发送序列;
处理器,用于采用低密度奇偶校验LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的。
在一种实现方式中,处理器还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
在上述接收设备中,还可包括存储器,且处理器的数量为至少一个,用来执行存储器存储的执行指令。使得接收设备通过通信接口与发送设备之间进行数据交互来执行上述第二方面或者第二方面的各种实施方式提供的数据的传输方法。
本申请第七方面提供一种可读存储介质,可读存储介质中存储有执行指令,当发送设备的至少一个处理器执行该执行指令时,发送设备执行上述第一方面或者第一方面的各种实施方式提供的数据的传输方法。
本申请第八方面提供一种可读存储介质,可读存储介质中存储有执行指令,当接收设备的至少一个处理器执行该执行指令时,接收设备执行上述第二方面或者第二方面的各种实施方式提供的数据的传输方法。
本申请第九方面提供一种程序产品,该程序产品包括执行指令,该执行指令存储在可读存储介质中。发送设备的至少一个处理器可以从可读存储介质读取该执行指令,至少一个处理器执行该执行指令使得发送设备实施第一方面或者第一方面的各种实施方式提供 的数据的传输方法。
本申请第十方面提供一种程序产品,该程序产品包括执行指令,该执行指令存储在可读存储介质中。接收设备的至少一个处理器可以从可读存储介质读取该执行指令,至少一个处理器执行该执行指令使得接收设备实施上述第二方面或者第二方面的各种实施方式提供的数据的传输方法。
本申请提供的数据的传输方法和装置,发送设备对待发送的信息比特序列,采用根据预设的基矩阵变换得到的的信息比特序列的码率对应的LDPC基矩阵再次扩展得到需要的LDPC校验矩阵,然后进行编码处理,得到编码后的发送序列,并将该发送序列发送至接收设备,接收设备采用根据预设基矩阵进行变换处理得到的LDPC基矩阵再次扩展得到的LDPC校验矩阵进行译码,得到译码后的信息比特序列,实现数据的传输,不需要针对各种不同码率设计LDPC校验矩阵,主要对预设的基矩阵进行简单变换就可以得到需要的校验矩阵,从而降低了系统的复杂度,降低编码复杂度。
附图说明
图1为本申请提供的数据的传输方法的一种系统架构示意图;
图2为本申请提供的数据的传输方法实施例一的流程示意图;
图3为本申请提供的1/3码率16*24的基矩阵进行列扩展的示意图;
图4为本申请提供的8/9码率16*144的基矩阵进行列删除的示意图;
图5为本申请提供的8/9码率16*144的基矩阵进行行扩展的示意图;
图6为本申请提供的1/3码率96*144的基矩阵进行行删除的示意图;
图7为本申请提供的8/9码率s*9s的基矩阵进行行列扩展的示意图;
图8为本申请提供的8/9码率96*144的基矩阵进行行列删除的示意图;
图9为本申请提供的数据的传输装置实施例一的结构示意图;
图10为本申请提供的数据的传输装置实施例二的结构示意图;
图11为本申请提供的发送设备实施例的结构示意图;
图12为本申请提供的接收设备实施例的结构示意图。
具体实施方式
为了解决背景技术中当系统支持的LDPC码率很多时,就需要很多个LDPC基矩阵,这样会导致系统比较复杂,也增加了编码的复杂度等问题,本申请提出一种LDPC码的速率匹配方法,用于LDPC编码,实现数据的传输。先获取信息比特序列,对信息比特序列采用LDPC校验矩阵进行编码,所述LDPC校验矩阵基于一个m b×n b基矩阵H b,通过扩展因子z,扩展为m×n的LDPC校验矩阵H,即m=z×m b,n=z×n b,其中n为LDPC码的码长,m为LDPC码校验比特数,信息比特数为n-m。具体的得到LDPC校验矩阵的方式可以是:基于一个低码率的LDPC基矩阵,通过列扩展或行删除或行列删除,得到其他高码率的LDPC基矩阵,再次扩展得到需要的LDPC校验矩阵;或者基于一个高码率的LDPC基矩阵,通过列删除或行扩展或行列扩展得到其他低码率的LDPC基矩阵,从而可以扩展得到需要的LDPC校验矩阵。因此该方法无需针对各 种不同码率设计LDPC基矩阵,从而降低了系统的复杂度,也使编码更加简单。
本申请的技术方案可应用于无线保真(WIreless-Fidelity,wifi)、5G等通信系统中。图1为本申请提供的数据的传输方法的一种系统架构示意图,如图1所示,该系统架构中包括网络设备(例如基站)以及终端,网络设备和终端也可以是Wifi的接入点和Wifi终端等,在本方案中,网络设备既可以作为发送设备,也可以作为接收设备,同样的终端也可以作为发送设备或者接收设备,对此本方案不做限制。该方案中网络设备和终端的数量不做限制。网络设备向终端传输下行数据,其中数据采用LDPC校验矩阵进行LDPC编码,LDPC编码后的序列经过调制等操作后传输给终端;终端向基站传输上行数据,上行数据也可以采用LDPC校验矩阵进行LDPC编码,LDPC编码后的序列经过调制后传输给基站。在上行数据或者下行数据的传输过程中,均可采用后续提供的方法。
上述架构中,网络设备为网络侧的基站或者其他能够提供基站功能的设备,为终端设备提供通信服务;终端为用户侧需要进行上下行数据交互的设备,例如:手机、平板电脑等。特别地,在D2D(英文名称:Device-to-Device;中文名称:设备间通信)通信中,网络设备还可以是承担基站功能的终端。除此之外,基站又称为无线接入网(Radio Access Network,RAN)设备,是一种将终端接入到无线网络的设备,上述架构中的基站还可以是全球移动通讯(Global System of Mobile communication,GSM)或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的基站(NodeB,NB),还可以是长期演进(Long Term Evolution,LTE)中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者5G网络中的基站等,在此并不限定。
图2为本申请提供的数据的传输方法实施例一的流程示意图,如图2所示,在图1所示的系统架构的基础上,基站或者终端均可以作为发送设备或者接收设备,该方法的具体包括以下步骤:
S101:发送设备将待发送的信息比特序列采用LDPC校验矩阵进行编码,得到编码后的发送序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与信息比特序列的码率对应的LDPC基矩阵扩展得到的。
在本步骤中,发送设备在发送数据前,需要将待发送的信息比特序列进行编码处理,然后进行发送,因此发送设备需要获得LDPC校验矩阵,在本方案中,该信息比特序列的码率对应的LDPC基矩阵不需要重新进行构造,只需要对预设的基矩阵进行简单变换即可得到码率对应LDPC基矩阵,对该LDPC基矩阵进行扩展即可得到需要的LDPC校验矩阵,具体的发送设备可以读取协议中规定的,基于当前预设的基矩阵,与待发送的信息比特序列的码率对应的变换方式,例如:删除X列、增加X行,删除X行、增加X列、或者删除X行X列,或者增加X行X列等变换方式。除此之外,该基于基矩阵变换得到需要的LDPC基矩阵的具体变换可以是网络设备发送得到的,也可以是发送设备和接收设备协议得到的,也可以是预先配置在发送设备侧的,对此本方案不做限制。
发送设备在得到需要的LDPC校验矩阵之后,对信息比特序列进行LDPC编码,得到发送序列。
S102:发送设备将发送序列发送给接收设备。
在本步骤中,发送设备将得到的发送序列映射到相应的资源上,传输给接收设备,接 收设备可接收到发送设备发送的发送序列。
S103:接收设备采用LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与信息比特序列的码率对应的LDPC基矩阵扩展得到的。
在本步骤中,接收设备需要对接收到的发送序列进行译码处理才可以得到信息比特序列,因此接收设备需要得到发送设备编码使用的LDPC校验矩阵,需要得到与该发送序列的码率对应的LDPC基矩阵,与发送设备同样的,接收设备获取该LDPC基矩阵的方式可以是根据接收的网络设备的通知的变换方式对基矩阵进行变化得到,也可以是与发送设备协议得到的,也可以是读取协议中的规定的码率、基矩阵以及变换至其他码率的LDPC基矩阵的变换方式的对应关系,然后对基矩阵进行变换得到上述LDPC基矩阵,继续扩展可得到需要的LDPC校验矩阵。
在得到该LDPC校验矩阵之后,接收设备对接收到的发送设备发送的发送序列进行译码处理,译码和验证均成功后得到发送的信息比特序列。
在上述过程中,发送设备和接收设备均需要获取LDPC基矩阵,与现有技术中为每个码率均设计一个基矩阵不同,在本方案中,所有需要的码率对应的LDPC基矩阵均可以根据同一个基矩阵变换处理得到,具体的可以是发送设备或者接收设备在需要使用某个码率对应的LDPC基矩阵时,根据预设的基矩阵进行变换处理得到。也可以是将预设的基矩阵的所有变换方式以及可变换得到的不同码率的基矩阵的变换方式在协议中规定好,发送设备和接收设备在需要使用时,只需要读取协议中的规定的变换方式进行转换即可,对此本方案不做限制。
本实施例提供的数据的传输方法,发送设备对待发送的信息比特序列,采用根据预设的基矩阵变换得到的LDPC基矩阵再次扩展得到LDPC校验矩阵,然后进行编码处理,得到编码后的发送序列,并将该发送序列发送至接收设备,接收设备采用根据预设基矩阵进行变换处理得到的LDPC基矩阵扩展得到LDPC校验矩阵,然后进行译码,得到译码后的信息比特序列,实现数据的传输,不需要针对各种不同码率设计LDPC基矩阵,主要对预设的基矩阵进行简单变换就可以得到需要的校验矩阵,从而降低了系统的复杂度,降低编码复杂度。
本申请提供的传输方法中采用LDPC码的速率匹配方法,用于LDPC编码。先获取信息比特序列,对信息比特序列采用LDPC校验矩阵进行编码,所述LDPC校验矩阵基于一个mb×nb基矩阵Hb,通过扩展因子z,扩展为m×n的LDPC校验矩阵H,即m=z×mb,n=z×nb,其中n为LDPC码的码长,m为LDPC码校验比特数,信息比特数为n-m。在上述实施例的基础上,下面提供几种发送设备或者接收设备采用的LDPC基矩阵从预设基矩阵变化的得到的具体形式。
一、基于低码率的基矩阵,通过校验矩阵的列扩展,得到高码率的LDPC基矩阵
图3为本申请提供的1/3码率16*24的基矩阵进行列扩展的示意图,如图3所示,基于1/3码率的LDPC码基矩阵进行列扩展,得到其他高码率的LDPC基矩阵。该1/3码率的LDPC基矩阵大小根据如下方式确定。通信系统支持的星座调制方式为:QPSK,16QAM,64QAM,256QAM,其中一个QPSK星座点对应2比特,一个16QAM星座点对应4比特, 一个64QAM星座点对应6比特,一个256QAM星座点对应8比特,取2,4,6,8的最小公倍数24为1/3码率的LDPC基矩阵列数nb的基数,则LDPC基矩阵列数nb为24或24的整数倍。下面以1/3码率的LDPC基矩阵列数为24为例,LDPC码率为1/3,所述1/3码率的LDPC基矩阵的行数为24-24×1/3=16。对该矩阵进行列扩展,如图3所示,进行扩展的列数为X,设常数t,根据码率的计算公式可知:
Figure PCTCN2018073233-appb-000009
推导可得到:X=16t+8,t=0,1,……,6,7。因此:
(1)、当t=0时,将1/3码率的16×24LDPC基矩阵扩展X=8列,得到1/2码率的LDPC基矩阵;
(2)、当t=1时,将1/3码率的16×24LDPC基矩阵扩展X=24列,得到2/3码率的LDPC基矩阵;
(3)、当t=2时,将1/3码率的16×24LDPC基矩阵扩展X=40列,得到3/4码率的LDPC基矩阵;
(4)、当t=3时,将1/3码率的16×24LDPC基矩阵扩展X=56列,得到4/5码率的LDPC基矩阵;
(5)、当t=4时,将1/3码率的16×24LDPC基矩阵扩展X=72列,得到5/6码率的LDPC基矩阵;
(6)、当t=5时,将1/3码率的16×24LDPC基矩阵扩展X=88列,得到6/7码率的LDPC基矩阵;
(7)、当t=6时,将1/3码率的16×24LDPC基矩阵扩展X=104列,得到7/8码率的LDPC基矩阵;
(8)、当t=7时,将1/3码率的16×24LDPC基矩阵扩展X=120列,得到8/9码率的LDPC基矩阵;
上述(1)~(8)中,当1/3码率的LDPC基矩阵为16j×24j(j为大于1的正整数)时,相应的(1)~(8)中的扩展的列X为原(1)~(8)中的X的整数倍。得到所述码率1/2,2/3,3/4,4/5,5/6,6/7,7/8,8/9的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用所述LDPC校验矩阵进行LDPC编码。
二、基于高码率的基矩阵,通过校验矩阵的列删除,得到低码率的LDPC基矩阵
图4为本申请提供的8/9码率16*144的基矩阵进行列删除的示意图,如图4所示,基于8/9码率的LDPC基矩阵,通过校验矩阵的列删除,得到低码率的LDPC基矩阵。根据(一),8/9码率的LDPC基矩阵列数为144或144的整数倍。下面以8/9码率的LDPC基矩阵列数为144为例,LDPC码率为8/9,所述8/9码率的LDPC基矩阵的行数为144-144×8/9=16。对该矩阵进行列删除,如图4所示,进行删除的列数为X,设常数t,根据码率的计算公式可知:
Figure PCTCN2018073233-appb-000010
推导可得到:X=112-16t,t=0,1,……,6。因此:
(1)、当t=0时,将8/9码率的16×144LDPC基矩阵删除X=112列,得到1/2码率的LDPC基矩阵;
(2)、当t=1时,将8/9码率的16×144LDPC基矩阵删除X=96列,得到2/3码率的LDPC基矩阵;
(3)、当t=2时,将8/9码率的16×144LDPC基矩阵删除X=80列,得到3/4码率的LDPC基矩阵;
(4)、当t=3时,将8/9码率的16×144LDPC基矩阵删除X=64列,得到4/5码率的LDPC基矩阵;
(5)、当t=4时,将8/9码率的16×144LDPC基矩阵删除X=48列,得到5/6码率的LDPC基矩阵;
(6)、当t=5时,将8/9码率的16×144LDPC基矩阵删除X=32列,得到6/7码率的LDPC基矩阵;
(7)、当t=6时,将8/9码率的16×144LDPC基矩阵删除X=16列,得到7/8码率的LDPC基矩阵;
(8)、将8/9码率的16×144LDPC基矩阵删除X=120列,得到1/3码率的LDPC基矩阵。
上述(1)~(8)中,当8/9码率的LDPC基矩阵为16j×144j(j为大于1的正整数)时,相应的(1)~(8)中的删除的列X为原(1)~(8)中的X的整数倍。得到所述码率1/3,1/2,2/3,3/4,4/5,5/6,6/7,7/8的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用所述LDPC校验矩阵进行LDPC编码。
除了上述的列扩展和列删除,还可以对基矩阵进行行扩展行删除以及行列扩展或者行列删除等方式进行变换,以得到其他码率的基矩阵。
三、基于高码率的LDPC码基矩阵,对校验矩阵进行行扩展,得到低码率的LDPC基矩阵
图5为本申请提供的8/9码率16*144的基矩阵进行行扩展的示意图,如图5所示,基于8/9码率的LDPC码基矩阵,对校验矩阵进行行扩展,得到低码率的LDPC基矩阵。根据前述描述,对8/9码率的LDPC基矩阵列数取为144或144的整数倍。下面以8/9码率的LDPC基矩阵列数为144为例,LDPC码率为8/9,所述8/9码率的LDPC基矩阵的行数为144-144×8/9=16。对该矩阵进行行扩展,如图5所示,进行行扩展的行数为X。设常数t,根据码率的计算公式可知:
Figure PCTCN2018073233-appb-000011
推导可得到:X=(112-16t)/(t+2),为了保证X是整数,t可以取值6,4,2,1。因此:
(1)、当t=6时,将8/9码率的16×144LDPC基矩阵行扩展X=2行,得到7/8码率的LDPC基矩阵;
(2)、当t=4时,将8/9码率的16×144LDPC基矩阵行扩展X=8行,得到5/6码率的LDPC基矩阵;
(3)、当t=2时,将8/9码率的16×144LDPC基矩阵行扩展X=20行,得到3/4码率的LDPC基矩阵;
(4)、当t=1时,将8/9码率的16×144LDPC基矩阵行扩展X=32行,得到2/3码率的LDPC基矩阵;
(5)、将8/9码率的16×144LDPC基矩阵行扩展X=56行,得到1/2码率的LDPC基矩阵;
(6)、将8/9码率的16×144LDPC基矩阵行扩展X=80行,得到1/3码率的LDPC基矩阵。
上述(1)~(6)中,当8/9码率的LDPC基矩阵为16j×144j(j为大于1的正整数)时,相应的(1)~(6)中的扩展到行数X为原(1)~(6)中的X的整数倍。得到所述码率1/3,1/2,2/3,3/4,5/6,7/8的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用所述LDPC校验矩阵进行LDPC编码。
四、基于低码率的LDPC码基矩阵,对校验矩阵进行行删除,得到高码率的LDPC基矩阵
图6为本申请提供的1/3码率96*144的基矩阵进行行删除的示意图,如图6所示,基于1/3码率的LDPC基矩阵,通过矩阵的行删除,得到高码率的LDPC基矩阵。根据上述的(一),1/3码率的LDPC基矩阵列数为144或144的整数倍。下面以1/3码率的LDPC基矩阵列数为144为例,LDPC码率为1/3,所述1/3码率的LDPC基矩阵的行数为144-144×1/3=96。对该矩阵进行行删除,如图6所示,进行行删除的行数为X,行删除后的码率记为(t+1)/(t+2),则可以得到:
X=(96t+48)/(t+2),为了保证X为整数,则t取值为7,6,4,2,1,因此:
(1)、当t=7时,将1/3码率的96×144LDPC基矩阵行删除X=80行,得到8/9码率的LDPC基矩阵;
(2)、当t=6时,将1/3码率的96×144LDPC基矩阵行删除X=78行,得到7/8码率的LDPC基矩阵;
(3)、当t=4时,将1/3码率的96×144LDPC基矩阵行删除X=72行,得到5/6码率的LDPC基矩阵;
(4)、当t=2时,将1/3码率的96×144LDPC基矩阵行删除X=64行,得到3/4码率的LDPC基矩阵;
(5)、当t=1时,将1/3码率的96×144LDPC基矩阵行删除X=48行,得到2/3码率的LDPC基矩阵;
(6)、将1/3码率的96×144LDPC基矩阵行删除X=24行,得到1/2码率的LDPC基矩阵。
上述(1)~(6)中,当1/3码率的LDPC基矩阵为96j×144j(j为大于1的正整数)时,相应的(1)~(6)中的删除的行数X为原(1)~(6)中的X的整数倍。得到所 述码率1/2,2/3,3/4,5/6,7/8,8/9的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用所述LDPC校验矩阵进行LDPC编码。
五、基于高码率的LDPC码基矩阵,对校验矩阵进行行列扩展,得到低码率的LDPC码基矩阵
图7为本申请提供的8/9码率s*9s的基矩阵进行行列扩展的示意图,如图7所示,基于8/9码率的LDPC码基矩阵,对校验矩阵进行行列扩展,得到低码率的LDPC码基矩阵。根据本申请技术方案中的描述,对8/9码率的LDPC基矩阵列数取为9s的整数倍。下面以8/9码率的LDPC基矩阵列数为9s为例,LDPC码率为8/9,所述8/9码率的LDPC基矩阵的行数为s。对该矩阵进行行列扩展,如图7所示,进行行扩展的行数为X,进行列扩展到列数为X列。
上述行、列扩展后的码率记为(t+1)/(t+2),则可得到:
X=(7s-st)/(t+1),n=0,1,…,6;为了保证X为整数,s可以取6,则t取值为5,3,2,1,因此所述8/9码率的LDPC基矩阵为6×54矩阵。
(1)、当t=5时,将8/9码率的6×54LDPC基矩阵行列扩展X=2行、X=2列,得到5/6码率的LDPC基矩阵;
(2)、当t=3时,将8/9码率的6×54LDPC基矩阵行列扩展X=6行、X=6列,得到4/5码率的LDPC基矩阵;
(3)、当t=2时,将8/9码率的6×54LDPC基矩阵行列扩展X=10行、X=10列,得到3/4码率的LDPC基矩阵;
(4)、当t=1时,将8/9码率的6×54LDPC基矩阵行列扩展X=18行、X=18列,得到2/3码率的LDPC基矩阵;
(5)、将8/9码率的6×54LDPC基矩阵行列扩展X=42行、X=42列,得到1/2码率的LDPC基矩阵;
(6)、将8/9码率的6×54LDPC基矩阵行列扩展X=90行、X=90列,得到1/3码率的LDPC基矩阵。
上述(1)~(6)中,当8/9码率的LDPC基矩阵为6j×54j(j为大于1的正整数)时,相应的(1)~(6)中的扩展到行数X为原(1)~(6)中的X的整数倍。得到所述码率1/3,1/2,2/3,3/4,4/5,5/6的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用所述LDPC校验矩阵进行LDPC编码。
六、基于低码率的LDPC码基矩阵,对矩阵进行行列删除,得到高码率的LDPC码基矩阵
图8为本申请提供的8/9码率96*144的基矩阵进行行列删除的示意图,如图8所示,基于1/3码率的LDPC基矩阵,通过校验矩阵的行列删除,得到高码率的LDPC基矩阵。根据上述的(一),1/3码率的LDPC基矩阵列数为144或144的整数倍。下面以1/3码率的LDPC基矩阵列数为144为例,LDPC码率为1/3,所述1/3码率的LDPC基矩阵的行数为144-144×1/3=96。对该矩阵进行行、列删除,如下图所示,进行行列删除的行数为 X,删除的列数为X:上述行列删除后的码率记为(t+1)/(t+2),则可以得到:
X=(96t+48)/(t+1),为保证X为整数则t取值为7,5,3,2,1,因此:
(1)、当t=7时,将1/3码率的96×144LDPC基矩阵行列删除X=90行、X=90列,得到8/9码率的LDPC基矩阵;
(2)、当t=5时,将1/3/码率的96×144LDPC基矩阵行列删除X=88行、X=88列,得到5/6码率的LDPC基矩阵;
(3)、当t=3时,将1/3/码率的96×144LDPC基矩阵行列删除X=84行、X=84列,得到4/5码率的LDPC基矩阵;
(4)、当t=2时,将1/3/码率的96×144LDPC基矩阵行列删除X=80行、X=80列,得到3/4码率的LDPC基矩阵;
(5)、当t=1时,将1/3/码率的96×144LDPC基矩阵行列删除X=72行、X=72列,得到2/3码率的LDPC基矩阵;
(6)、将1/3码率的96×144LDPC基矩阵行列删除X=48行、X=48列,得到1/2码率的LDPC基矩阵。
上述(1)~(6)中,当1/3码率的LDPC基矩阵为96j×144j(j为大于1的正整数)时,相应的(1)~(6)中的行列删除的行数列数X为原(1)~(6)中的X的整数倍。得到码率1/2,2/3,3/4,4/5,5/6,8/9的LDPC基矩阵后,再根据扩展因子进行扩展,得到所要求码率的LDPC校验矩阵,再利用LDPC校验矩阵进行LDPC编码。
此外,常见的低码率还可以是1/2,或者3/4等,上述方案只是对部分低码率的基矩阵或者高码率的基矩阵进行转换的举例,具体实现中可以根据实际情况进行选择,按照上述同样的原理进行确定行列转换的方式。
例如:当预设的基矩阵为1/2码率的12*24LDPC基矩阵时,
Figure PCTCN2018073233-appb-000012
则X=12t,因此:
对1/2码率的12×24LDPC基矩阵扩展12列,得到2/3码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展24列,得到3/4码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展36列,得到4/5码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展48列,得到5/6码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展60列,得到6/7码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展72列,得到7/8码率的LDPC基矩阵;或,
对1/2码率的12×24LDPC基矩阵扩展84列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为2/3码率的8*24LDPC基矩阵时,扩展X列,得到码率为
Figure PCTCN2018073233-appb-000013
则X=8(t-1),因此:
对2/3码率的8×24LDPC基矩阵扩展8列,得到3/4码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展16列,得到4/5码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展24列,得到5/6码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展32列,得到6/7码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展40列,得到7/8码率的LDPC基矩阵;或,
对2/3码率的8×24LDPC基矩阵扩展48列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为3/4码率的6*24LDPC基矩阵时,扩展X列,得到码率为
Figure PCTCN2018073233-appb-000014
则X=8(t-1),因此:
对3/4码率的6×24LDPC基矩阵扩展6列,得到4/5码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展12列,得到5/6码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展18列,得到6/7码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展24列,得到7/8码率的LDPC基矩阵;或,
对3/4码率的6×24LDPC基矩阵扩展30列,得到8/9码率的LDPC基矩阵。
综合上述一至六提供的六种方案以及其他几个实例,可知基于一个低码率的LDPC基矩阵,通过列扩展或行删除或行列删除,得到其他高码率的LDPC基矩阵;或者基于一个高码率的LDPC基矩阵,通过列删除或行扩展或行列扩展得到其他低码率的LDPC基矩阵。上述提供的具体实现方式中仅仅以1/3或者8/9码率的一种基矩阵的情况作为示意,还可以是1/3或者8/9码率的其他基矩阵根据上述原理进行变换,也可以是1/2等其他低码率的基矩阵通过列扩展或行删除或行列删除,得到其他高码率的LDPC基矩阵,还也可以是7/8等其他高码率的基矩阵通过列删除或行扩展或行列扩展得到其他低码率的LDPC基矩阵,在得到需要的码率对应的基矩阵后再次扩展可得到需要的LDPC校验矩阵进行编码或者译码处理。即本申请不限制具体的码率和行列数,可根据上述原理进行简单的变换得到需要的其他码率的校验矩阵即可,并且可以在协议中直接规定某种基矩阵对应的行列变换方式以及得到的某码率的基矩阵的对应关系。
本申请提供的上述方案,无需针对各种不同码率设计LDPC基矩阵,从而降低了系统的复杂度,也使编码更加简单。
图9为本申请提供的数据的传输装置实施例一的结构示意图,如图9所示,该数据的传输装置10包括:
处理模块11,用于将待发送的信息比特序列采用LDPC校验矩阵进行编码,得到编码后的发送序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
发送模块12,用于将发送序列发送给接收设备。
本实施例提供的数据的传输装置,用于实现前述任一方法实施例中发送设备的技术方案,其实现原理和技术效果类似,在此不再赘述。
在上述数据的传输装置的具体实现中,处理模块11还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
可选的,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
对1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
对8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
上述任一种实现方式提供的数据的传输装置,用于实现前述任一方法实施例中发送设备的技术方案,其实现原理和技术效果类似,在此不再赘述。
图10为本申请提供的数据的传输装置实施例二的结构示意图,如图10所示,该数据的传输装置20包括:
接收模块21,用于接收发送设备发送的发送序列;
处理模块22,用于采用LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与信息比特序列的码率对应的LDPC基矩阵扩展得到的。
本实施例提供的数据的传输装置,用于实现前述任一方法实施例中接收设备的技术方案,其实现原理和技术效果类似,在此不再赘述。
在上述实施例的基础上,处理模块22还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
可选的,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
对1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
对1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
对1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
对1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
对8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
对8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
可选的,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
对8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
对8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
上述任一实现方式提供的数据的传输装置20,用于实现前述任一方法实施例中接收设备的技术方案,其实现原理和技术效果类似,在此不再赘述。
图11为本申请提供的发送设备实施例的结构示意图,如图11所示,该发送设备30包括:
处理器31,用于将待发送的信息比特序列采用低密度奇偶校验LDPC校验矩阵进行编码,得到编码后的发送序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与信息比特序列的码率对应的LDPC基矩阵扩展得到的;
发送器32,用于将发送序列发送给接收设备。
可选的,处理器31还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
在上述发送设备中,还可以包括存储器,处理器的数量为至少一个,用来执行存储器存储的计算机执行指令。使得发送设备通过通信接口与接收设备之间进行数据交互来执行前述的各种实施方式提供的数据的传输方法。
图12为本申请提供的接收设备实施例的结构示意图,如图12所示,该接收设备40包括:
接收器41,用于接收发送设备发送的发送序列;
处理器42,用于采用低密度奇偶校验LDPC校验矩阵对发送序列进行译码,得到译码后的信息比特序列;其中,LDPC校验矩阵为根据预设基矩阵变换处理得到的与信息比特序列的码率对应的LDPC基矩阵扩展得到的。
在一种实现方式中,处理器42还用于:
获取与所述信息比特序列的码率对应的LDPC基矩阵;
根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
可选的,LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
或者,
LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
可选的,LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
或者,
LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
在上述接收设备中,还可包括存储器,且处理器的数量为至少一个,用来执行存储器存储的执行指令。使得接收设备通过通信接口与发送设备之间进行数据交互来执行上述的各种实施方式提供的数据的传输方法。
本申请还提供一种可读存储介质,可读存储介质中存储有执行指令,当发送设备的至少一个处理器执行该执行指令时,发送设备执行上述各种实施方式提供的数据的传输方法。
本申请还提供一种可读存储介质,可读存储介质中存储有执行指令,当接收设备的至少一个处理器执行该执行指令时,接收设备执行上述各种实施方式提供的数据的传输方法。
本申请还提供一种程序产品,该程序产品包括执行指令,该执行指令存储在可读存储介质中。发送设备的至少一个处理器可以从可读存储介质读取该执行指令,至少一个处理 器执行该执行指令使得发送设备实施上述各种实施方式提供的数据的传输方法。
本申请还提供一种程序产品,该程序产品包括执行指令,该执行指令存储在可读存储介质中。接收设备的至少一个处理器可以从可读存储介质读取该执行指令,至少一个处理器执行该执行指令使得接收设备实施上述各种实施方式提供的数据的传输方法。
在上述发送设备或者接收设备的实施例中,应理解,处理器可以是中央处理单元(英文:Central Processing Unit,简称:CPU),还可以是其他通用处理器、数字信号处理器(英文:Digital Signal Processor,简称:DSP)、专用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储器中。该程序在执行时,执行包括上述各方法实施例的步骤;而前述的存储器(存储介质)包括:只读存储器(英文:read-only memory,缩写:ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文:magnetic tape)、软盘(英文:floppy disk)、光盘(英文:optical disc)及其任意组合。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制。

Claims (30)

  1. 一种数据的传输方法,其特征在于,包括:
    发送设备将待发送的信息比特序列采用低密度奇偶校验LDPC校验矩阵进行编码,得到编码后的发送序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
    所述发送设备将所述发送序列发送给接收设备。
  2. 根据权利要求1所述的方法,其特征在于,所述发送设备将待发送的信息比特序列采用LDPC校验矩阵进行编码之前,所述方法还包括:
    所述发送设备获取与所述信息比特序列的码率对应的LDPC基矩阵;
    所述发送设备根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
  3. 根据权利要求1或2所述的方法,其特征在于,所述LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
  4. 根据权利要求1或2所述的方法,其特征在于,所述LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
  5. 根据权利要求3所述的方法,其特征在于,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
    对所述1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
  6. 根据权利要求3所述的方法,其特征在于,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
    对所述1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
  7. 根据权利要求3所述的方法,其特征在于,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
    对所述1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
  8. 根据权利要求4所述的方法,其特征在于,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
    对所述8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
  9. 根据权利要求4所述的方法,其特征在于,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
    对所述8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
  10. 根据权利要求4所述的方法,其特征在于,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
    对所述8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
  11. 一种数据的传输方法,其特征在于,包括:
    接收设备接收发送设备发送的发送序列;
    所述接收设备采用低密度奇偶校验LDPC校验矩阵对所述发送序列进行译码,得到译码后的信息比特序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的。
  12. 根据权利要求11所述的方法,其特征在于,所述接收设备采用LDPC校验矩阵对所述发送序列进行译码之前,所述方法还包括:
    所述接收设备获取与所述信息比特序列的码率对应的LDPC基矩阵;
    所述接收设备根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
  13. 根据权利要求11或12所述的方法,其特征在于,所述LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
  14. 根据权利要求11或12所述的方法,其特征在于,所述LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
  15. 根据权利要求13所述的方法,其特征在于,当预设的基矩阵为1/3码率的16*24LDPC基矩阵时,
    对所述1/3码率的16*24LDPC基矩阵扩展8列,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展24列,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展40列,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展56列,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展72列,得到5/6码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展88列,得到6/7码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展104列,得到7/8码率的LDPC基矩阵;或,
    对所述1/3码率的16*24LDPC基矩阵扩展120列,得到8/9码率的LDPC基矩阵。
  16. 根据权利要求13所述的方法,其特征在于,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
    对所述1/3码率的96*144LDPC基矩阵删除24行,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除48行,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除64行,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除72行,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除78行,得到7/8码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除80行,得到8/9码率的LDPC基矩阵。
  17. 根据权利要求13所述的方法,其特征在于,当预设的基矩阵为1/3码率的96*144LDPC基矩阵时,
    对所述1/3码率的96*144LDPC基矩阵删除48行48列,得到1/2码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除72行72列,得到2/3码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除80行80列,得到3/4码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除84行84列,得到4/5码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除88行88列,得到5/6码率的LDPC基矩阵;或,
    对所述1/3码率的96*144LDPC基矩阵删除90行90列,得到8/9码率的LDPC基矩阵。
  18. 根据权利要求14所述的方法,其特征在于,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
    对所述8/9码率的16*144LDPC基矩阵删除122列,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除96列,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除80列,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除64列,得到4/5码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除48列,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除32列,得到6/7码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除16列,得到7/8码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵删除120列,得到1/3码率的LDPC基矩阵。
  19. 根据权利要求14所述的方法,其特征在于,当预设的基矩阵为8/9码率的16*144LDPC基矩阵时,
    对所述8/9码率的16*144LDPC基矩阵扩展2行,得到7/8码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展8行,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展20行,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展32行,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展56行,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的16*144LDPC基矩阵扩展80行,得到1/3码率的LDPC基矩阵。
  20. 根据权利要求14所述的方法,其特征在于,当预设的基矩阵为8/9码率的6*54LDPC基矩阵时,
    对所述8/9码率的6*54LDPC基矩阵扩展2行2列,得到5/6码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展6行6列,得到4/5码率的LDPC基矩阵; 或,
    对所述8/9码率的6*54LDPC基矩阵扩展10行10列,得到3/4码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展18行18列,得到2/3码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展42行42列,得到1/2码率的LDPC基矩阵;或,
    对所述8/9码率的6*54LDPC基矩阵扩展90行90列,得到1/3码率的LDPC基矩阵。
  21. 一种数据的传输装置,其特征在于,包括:
    处理模块,用于将待发送的信息比特序列采用低密度奇偶校验LDPC校验矩阵进行编码,得到编码后的发送序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的;
    发送模块,用于将所述发送序列发送给接收设备。
  22. 根据权利要求21所述的装置,其特征在于,处理模块还用于:
    获取与所述信息比特序列的码率对应的LDPC基矩阵;
    根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
  23. 根据权利要求21或22所述的装置,其特征在于,所述LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
  24. 根据权利要求21或22所述的装置,其特征在于,所述LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
  25. 一种数据的传输装置,其特征在于,包括:
    接收模块,用于接收发送设备发送的发送序列;
    处理模块,用于采用低密度奇偶校验LDPC校验矩阵对所述发送序列进行译码,得到译码后的信息比特序列;其中,所述LDPC校验矩阵为根据预设基矩阵变换处理得到的与所述信息比特序列的码率对应的LDPC基矩阵扩展得到的。
  26. 根据权利要求25所述的装置,其特征在于,所述处理模块还用于:
    获取与所述信息比特序列的码率对应的LDPC基矩阵;
    根据所述LDPC基矩阵扩展得到所述LDPC校验矩阵。
  27. 根据权利要求25或26所述的装置,其特征在于,所述LDPC基矩阵为根据预设的低码率的基矩阵进行列扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的低码率的基矩阵进行行列删除处理得到的。
  28. 根据权利要求25或26所述的装置,其特征在于,所述LDPC基矩阵为根据预设的高码率的基矩阵进行列删除处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行扩展处理得到的;
    或者,
    所述LDPC基矩阵为根据预设的高码率的基矩阵进行行列扩展处理得到的。
  29. 一种可读存储介质,其特征在于,所述可读存储介质中存储有执行指令,当发送设备的至少一个处理器执行所述执行指令时,所述发送设备执行权利要求1至10任一项所述的数据的传输方法。
  30. 一种可读存储介质,其特征在于,所述可读存储介质中存储有执行指令,当接收设备的至少一个处理器执行所述执行指令时,所述接收设备执行权利要求11至20任一项所述的数据的传输方法。
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