WO2020134258A1 - 一种数据的重传解码方法、装置、系统及通信设备 - Google Patents

一种数据的重传解码方法、装置、系统及通信设备 Download PDF

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Publication number
WO2020134258A1
WO2020134258A1 PCT/CN2019/108577 CN2019108577W WO2020134258A1 WO 2020134258 A1 WO2020134258 A1 WO 2020134258A1 CN 2019108577 W CN2019108577 W CN 2019108577W WO 2020134258 A1 WO2020134258 A1 WO 2020134258A1
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Prior art keywords
code block
decoding
decoded
data
status information
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PCT/CN2019/108577
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English (en)
French (fr)
Inventor
李扬
汪立林
武雪强
张德刚
王佳楠
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中兴通讯股份有限公司
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Priority to JP2021537942A priority Critical patent/JP7282895B2/ja
Priority to US17/418,773 priority patent/US20220069946A1/en
Priority to EP19904118.7A priority patent/EP3893419A4/en
Publication of WO2020134258A1 publication Critical patent/WO2020134258A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0075—Transmission of coding parameters to receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6306—Error control coding in combination with Automatic Repeat reQuest [ARQ] and diversity transmission, e.g. coding schemes for the multiple transmission of the same information or the transmission of incremental redundancy

Definitions

  • the present application relates to the field of wireless communication, and in particular, to a data retransmission decoding method, device, system, and communication equipment.
  • the sender When data is retransmitted, the sender will send data information and a part of redundant information during the first transmission.
  • the receiver uses the transmission block (TB, Transport Block) or code block group (CBG, Code Block Group) as After the main data information and part of the redundant information fails to be combined and decoded, it will request to send retransmitted data.
  • the sender usually sends additional redundant information when retransmitting the data. Through this redundant information, the channel coding rate can be reduced. Improve decoding success rate.
  • An embodiment of the present application provides a data retransmission decoding method.
  • the method is applied to a decoding unit.
  • the method includes: acquiring retransmission data to be decoded, and the retransmission data to be decoded includes code blocks to be decoded; Determine whether the code block to be decoded contains the target code block that needs to be decoded again according to the stored code block check status information of the last decoded code block; if the code block to be decoded contains the target code block that needs to be decoded again Then, based on predetermined decoding parameters, the currently stored first code block and the target code block are combined and decoded, where the first code block is a code block corresponding to the target code block.
  • An embodiment of the present application provides a data retransmission decoding method.
  • the method is applied to a data sending unit.
  • the method includes: receiving code block check status information based on newly transmitted decoded data sent by a decoding unit; Code block check status information, determine decoding parameters; send the decoding parameters to the decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • the communication system includes the decoding unit and the data sending unit, wherein: the data sending unit is used to receive new transmission-based decoding data sent by the decoding unit Or based on the code block check status information of the retransmitted data to be decoded, determine decoding parameters according to the code block check status information, and send the decoding parameters to the decoding unit; the decoding unit is used to obtain The newly transmitted decoded data or the retransmitted data to be decoded, the newly transmitted decoded data and the retransmitted data to be decoded include code blocks to be decoded; according to the pre-stored code block check status information, the judgment is made Whether the code block to be decoded contains a target code block that needs to be decoded again; if the code block to be decoded contains a target code block that needs to be decoded again, based on the decoding parameters, the currently stored first code block and The target code block is combined and decoded, wherein
  • An embodiment of the present application further provides a data retransmission decoding device.
  • the device includes: a first acquisition module, configured to acquire data to be retransmitted to be decoded, where the data to be decoded includes code blocks to be decoded;
  • the judging module is used for judging whether the code block to be decoded contains the target code block that needs to be decoded again according to the pre-stored code block check status information;
  • the decoding module is used if the code block to be decoded contains If the target code block needs to be decoded again, the first stored code block and the target code block are combined and decoded based on predetermined decoding parameters, where the first code block is a code corresponding to the target code block Piece.
  • An embodiment of the present application further provides a data retransmission decoding device, characterized in that the device includes: a second receiving module configured to receive code block check status information based on newly transmitted decoded data sent by the decoding unit; parameters The determining module is used to determine decoding parameters according to the code block check status information; the sending module is used to send the decoding parameters to the decoding unit, so that the decoding unit retransmits the data according to the decoding parameters Decode and verify the data to be decoded.
  • the embodiment of the present application adopts the following technical solution: by acquiring retransmitted data to be decoded, the retransmitted data to be decoded includes the code block to be decoded, and judging the code to be decoded according to the stored code status of the last decoded code block check Whether the block contains the target code block that needs to be decoded again, if the code block to be decoded contains the target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code block and the target code block are combined and decoded, The first code block is a code block corresponding to the target code block.
  • FIG. 1 is a schematic flowchart of an embodiment of a data retransmission decoding method of this application
  • FIG. 2 is a schematic flowchart of an embodiment of another data retransmission decoding method of this application
  • FIG. 3 is a schematic flowchart of another embodiment of a data retransmission decoding method according to this application.
  • FIG. 5 is a schematic flowchart of another embodiment of a data retransmission decoding method according to this application.
  • FIG. 6 is a schematic structural diagram of an embodiment of a data retransmission decoding device of the present application.
  • FIG. 7 is a schematic structural diagram of another embodiment of a data retransmission decoding device of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device according to this application.
  • an embodiment of the present application provides a data retransmission decoding method.
  • the method may be executed by a decoding unit, and the decoding unit may be a decoding unit in any communication device (such as a base station or a terminal device, etc.) .
  • the method may specifically include the following steps.
  • step S102 the retransmission data to be decoded is obtained, and the retransmission data to be decoded includes the code block to be decoded.
  • the data to be decoded for retransmission may be data containing multiple redundant bit information, wherein the redundant bit information may be any redundant bit such as check bit information, cyclic redundancy check (CRC, Cyclic Redundancy Check) information, etc.
  • the code block to be decoded may be any transport block (TB, Transport, Block) or code block group (CBG, Code, Block, Group) to be decoded.
  • the channel transmission quality is very poor, so you can use
  • the sender When data is retransmitted, the sender will send data information and a part of redundant information during the first transmission.
  • the receiver uses the transmission block (TB, Transport Block) or code block group (CBG, Code Block Group) as After the main data information and part of the redundant information fails to be combined and decoded, it will request to send retransmitted data.
  • the sender usually sends additional redundant information when retransmitting the data. Through this redundant information, the channel coding rate can be reduced. Improve decoding success rate.
  • the embodiments of the present application provide a technical solution capable of solving the above problems, and may specifically include the following content.
  • the decoding unit When the decoding unit decodes the data to be decoded and redundant data (such as redundant bit information) received for the first time, and checks the decoding result, if there is an erroneous decoding result, the decoding unit will For example, the data sending unit) sends the second data request, which is the request to retransmit the data to be decoded.
  • the upper layer system will send the data to be decoded to the decoding unit, where the data to be decoded may contain the data to be decoded.
  • the code block and redundant bit information different from the redundant data in the data to be decoded transmitted for the first time.
  • user information data can be encoded using the LDPC encoding method. After encoding, a check matrix based on each user information data block can be obtained, where the check matrix can contain user information Data and corresponding check data. At this time, the user information data in the check matrix can be used as data to be decoded, the corresponding check data can be used as redundant data, and the first time to be decoded data can be multiple A check matrix of user information data and check data, that is, multiple code blocks to be decoded. When the decoding unit receives multiple code blocks to be decoded, it decodes the code blocks.
  • the decoding unit can send a second data request, that is, an acquisition request to retransmit the data to be decoded.
  • the upper layer system can perform secondary encoding for each user information data.
  • the check matrix obtained after encoding can be different from the first encoding. For example, in the check matrix A based on user A obtained from the first encoding, there can be 22 Column of user real information data and 5 columns of verification data. In the second check matrix B based on user A, there can be 22 columns of user real information data and 32 columns of verification data.
  • the obtained check matrix can be sent to the decoding unit as retransmission data to be decoded, and the decoding unit can obtain the retransmission data to be decoded.
  • other services than 5G services can also include multiple encoding methods.
  • Turbo encoding after Turbo encoding each code block, system bit bits (systematic) will be generated for each code block data. bit), the first parity bit (first parity bit), and the second parity bit (second parity bit) are the three bits of information.
  • first data output the data information of the code block and the above three
  • One or more redundant data in the redundant bit information is combined and sent to the decoding unit.
  • the decoding unit can perform combined decoding on the decoded data and the redundant data.
  • the second data request can be sent to the upper layer system, that is, a request to retransmit the data to be decoded.
  • the upper layer system After receiving the request to retransmit the data to be decoded, the upper layer system will send the retransmitted data to be decoded to A decoding unit, wherein the data to be decoded for retransmission may contain the same data as the data to be decoded sent for the first time, and the redundant data contained may be different from the redundant data sent for the first time, for example, the data sent for the first time
  • the data to be decoded is code block 1 to code block 3.
  • the redundant data sent for the first time may be the systematic bit of each code block, and the retransmitted data to be decoded sent for the second time may be code block 1 to code block 3.
  • the redundant data corresponding to the retransmitted data to be decoded may be two parity bits of each code block, that is, the first parity bit (first parity bit) and the second parity bit (second parity bit).
  • the redundant data corresponding to the data to be decoded may also be redundant data containing all bit information.
  • the redundant data contained in the code block may be parity data or other check bit information, such as cyclic redundancy check, H (Hartenberg) matrix check, or cyclic redundancy check and H
  • check bit information generated by the check method combined with the matrix check, and the specific redundant data content may be different according to the actual situation, which is not limited in the embodiments of the present application.
  • step S104 according to the stored code block check status information of the last decoding, it is determined whether the code block to be decoded contains the target code block that needs to be decoded again.
  • the code block check status information may be the check status information obtained after checking the decoding result of the code block according to different check modes.
  • the code block check status information may be the code block check status information stored by the decoding unit after checking the decoding result of the data to be decoded received for the first time, based on the code block check status information .
  • the code block check status information of block 5 may be: code block 1-correct, code block 2-error, code block 3-correct, code block 4-correct, code block 5-error, according to the code block 1-code
  • the code block check status information of block 5 can determine the target code block that needs to be decoded again for code block 2 and code block 5.
  • step S106 if the code block to be decoded contains the target code block that needs to be decoded again, then the currently stored first code block and the target code block are combined and decoded based on predetermined decoding parameters.
  • the predetermined decoding parameter may include a predetermined number of iterations.
  • the predetermined number of iterations may be the number of iterations determined by the decoding unit according to the code block check status information, or the received upper layer system (such as the data sending unit) according to the code block check status
  • the number of iterations determined by the information, or the predetermined number of iterations set by the user, the currently stored first code block may be the code block contained in the data to be decoded received last time, and the currently stored code block corresponding to the target code block It may be a code block found in the currently stored code block according to the number of the target code block or other identification.
  • the code block corresponding to the target code block can be found in the currently stored code block, and the code block and the target code block are combined and decoded.
  • the LDPC encoding method is
  • the retransmitted data to be decoded contains 3 code blocks, namely code block 1-code block 3, according to the stored code block check status information, it can be determined that code block 2 has been correctly decoded in the previous decoding, then the target The code blocks are code block 1 and code block 3, that is, code block 1 and code block 3 need to be decoded again.
  • the currently stored code block 1 is the matrix A1 obtained based on the data information of the user A last time by LDPC, where the matrix A1 It contains 22 columns of user real data information and 5 columns of verification information.
  • the currently stored code block 3 is the matrix C1 obtained based on the user C data information in the last LDPC method. Among them, the matrix C1 contains 22 columns of user real data information And 7 columns of verification information.
  • the matrix of code block 1 is A2
  • A2 contains 22 columns of user real data information and 9 columns of verification information
  • matrix C2 of code block 3 contains 22 columns
  • User real data information and 9 columns of verification information can combine matrix A1 and matrix A2 to decode to obtain the decoding result and verification result corresponding to code block 1, and can also perform combined decoding on matrix C1 and matrix C2 of code block 3.
  • the decoding result of the combined decoding can be merged with the stored last decoding correct decoding to determine the retransmission decoding result, or the stored decoding result of the last decoding can be updated by combining the decoding result of the decoding to merge the decoded
  • the correct decoding result in the decoding result replaces the stored decoding result of the previous decoding to determine the retransmission decoding result.
  • An embodiment of the present application provides a data retransmission decoding method.
  • the retransmission data to be decoded includes the code block to be decoded, and judgment is made according to the stored code block check status information of the last decoded code block. Whether the code block to be decoded contains a target code block that needs to be decoded again, if the code block to be decoded contains a target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code block and the target The code blocks are combined and decoded, wherein the first code block is a code block corresponding to the target code block.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information, and only decode the target code block that needs to be decoded again according to the received retransmission data.
  • the amount of data is large.
  • it can dynamically calculate the number of decoding iterations online in real time and improve the decoder performance.
  • an embodiment of the present application provides a data retransmission decoding method.
  • the method may be executed by a decoding unit, and the decoding unit may be a decoding unit in any communication device (such as a base station or a terminal device, etc.) .
  • the method may specifically include the following steps.
  • step S202 the new transmission decoded data is obtained, and the code block to be decoded contained in the new transmission decoded data is decoded and checked to obtain a new transmission decoding result and code block check status information.
  • the newly transmitted and decoded data may be any data including transport blocks or code block groups.
  • the decoding unit can decode and check the code block to be decoded in the acquired new transmission and decoding data, and store the obtained new transmission and decoding results and code block check status information
  • the new transmission and decoding data can be Contains 5 code blocks, code block 1-code block 5, decode and check the 5 code blocks, get the decoding result and check result corresponding to each code block, and store the decoding of the 5 code blocks Results and check results, for example, taking Turbo coding as an example, each code block may contain 3 check bit information, namely, systematic bit, first parity bit, first parity bit, The second parity bit (second parity bit), where the systematic bit is the necessary bit information for decoding, and each code block in the newly transmitted decoded data can carry the corresponding systematic bit and part of the parity bit,
  • the newly transmitted decoded data may include data of 5 code blocks, system bit information corresponding to all code blocks, and bit information of the first parity bit of code block 1 and code block 2, the decoding unit receives After the newly transmitted decode
  • the decoding result of each code block can be checked.
  • the result is: code block 1-correct, code block 2-error, code block 3-correct, code block 4-correct, code block 5-error, the new transmission decoding result and the code block corresponding to each code block can be stored Verify status information.
  • step S204 the new transmission decoding result and the code block check status information are stored, and the decoding parameters are determined according to the code block check status information.
  • the decoding parameter may include a redundant version number and the number of iterations.
  • the number of iterations may be a parameter determined by the decoding unit according to the stored code block check status information.
  • the decoding unit may also determine the decoding parameters to be retransmitted according to the code block check status information after decoding the newly transmitted decoded data
  • the decoding parameter to be retransmitted to be decoded may be a decoding parameter determined by the decoding unit according to its own data processing capability, or may be a decoding parameter determined by the decoding unit according to the number of target code blocks in the retransmitted data to be decoded, where, If there are fewer erroneous code blocks in the code block check status information, the corresponding number of iterations is greater and the decoding performance of the decoding unit is better.
  • step S206 the retransmission data to be decoded is obtained, and the retransmission data to be decoded includes the code block to be decoded.
  • step S208 according to the pre-stored code block check status information, it is determined whether the code block to be decoded contains the target code block that needs to be decoded again.
  • step S210 if the code block to be decoded contains the target code block that needs to be decoded again, the redundant data corresponding to the target code block in the first code block is determined based on the redundancy version number.
  • the redundant data in the retransmitted data to be decoded can be stored in the circulator.
  • 3 different bits of information for each code block are obtained.
  • the system bit of the code block is stored into In the circulator, the first parity bit and/or the second parity bit to be transmitted are sequentially stored.
  • the decoding unit can determine the extraction based on the redundancy version number The starting position of the redundant data.
  • step S212 the redundant data and the target code block are combined and decoded.
  • the code blocks that need to be decoded are combined and decoded to obtain the combined decoding result.
  • the retransmission decoding delay is n times the new transmission decoding delay
  • the decoding processing capability during retransmission decoding is only the new transmission 1/n during decoding
  • the error code block rate is m% under the channel conditions at this time
  • the delay for retransmission decoding of the entire transport block is X
  • the delay for decoding only the error code block is m%*X, that is, the ability to decode an error code block is improved by 1/(m%) times than the ability to decode all code blocks again within the same time.
  • step S214 the combined decoding result and the stored first decoding result are combined to obtain a retransmission decoding result.
  • the first decoding result may be the decoding result of decoding the correct code block in the last decoding process.
  • the retransmission decoding result (that is, the result of the combined decoding) and the stored first decoding result can be combined and output, for example, according to the stored code block to check the status information It can be determined that the correct code blocks are code block 2, code block 4 and code block 5, and the error code blocks that need to be decoded again are code block 1 and code block 3, after decoding code block 1 and code block 3 again, you can The obtained combined decoding results of the new code block 1 and the code block 3 may be combined and sorted and output with the first decoding results of the stored code block 2, code block 4 and code block 5, such as, The decoded result of the stored code block 2 is a, the decoded result of code block 4 is b, the decoded result of code block 5 is c, the result of the combined decoding after retransmission decoding of code block 1 is d, and the code block 3
  • the combined decoding result after retransmission decoding is e, and the output decoding results can
  • step S216 the code block check status information is updated according to the retransmission decoding result.
  • the stored code block when decoding the retransmitted data to be decoded, if there is an erroneous decoding result when checking the decoding result of the target code block, the stored code block may be checked for status information according to the decoding check state Update, for example, the target code blocks that need to be decoded again are code block 1 and code block 3, and the code block check status information of code block 2, code block 4 and code block 5 is correct, and there is no need to decode again.
  • the result of the retransmission to be decoded of the code block 1 is correct, and the result of the retransmission to be decoded of the code block 3 is wrong, and the result of the retransmission to be decoded can be stored to
  • the code block check status information the code block check status information of the corresponding code block 1 is changed to correct, and the code block check status information of the code block 3 is unchanged, which is still an error.
  • An embodiment of the present application provides a data retransmission decoding method.
  • the retransmission data to be decoded includes the code block to be decoded, and judgment is made according to the stored code block check status information of the last decoded code block. Whether the code block to be decoded contains the target code block that needs to be decoded again, if the code block to be decoded contains the target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code block and the target code block Perform merge decoding, where the first code block is a code block corresponding to the target code block.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information, and only decode the target code block that needs to be decoded again according to the received retransmission data.
  • the amount of data is large.
  • it can dynamically calculate the number of decoding iterations online in real time and improve the decoder performance.
  • an embodiment of the present application provides a data retransmission decoding method.
  • the execution subject of the method may be a decoding unit, and the decoding unit may be a decoding unit in any communication device (such as a base station or a terminal device, etc.) .
  • the method may specifically include the following steps.
  • step S302 receive code block check status information based on newly transmitted decoded data sent by the decoding unit.
  • step S304 the decoding parameters are determined according to the code block check status information.
  • the data sending unit can determine the decoding parameters during the retransmission decoding according to the number of erroneous code blocks in the code block check status information and the decoding capability of the decoding unit.
  • the decoding parameters can include redundant version numbers and iterations The number of times, where the decoding capability of the decoding unit may include the number of decoding cores of the decoding unit, the decoding delay of a single code block, and so on.
  • the fewer erroneous code blocks in the code block check status information the greater the number of iterations, the higher the corresponding decoding accuracy, and the better the decoding performance.
  • the approximate bit error rate is achieved.
  • the required number of iterations can be different.
  • FIG. 4 under the condition of additive white Gaussian noise (AWGN, White Gaussian Noise) channel, with 100 resource blocks (RB, Resources Block), modulation and coding strategy (MCS , Modulation and Coding Scheme 28 as an example, in the simulation results of FIG. 4, the horizontal axis represents the signal-to-noise ratio, the vertical axis indicates the packet error rate, and the broken line represents the number of iterations.
  • AWGN additive white Gaussian noise
  • MCS Modulation and Coding Scheme 28
  • the horizontal axis represents the signal-to-noise ratio
  • the vertical axis indicates the packet error rate
  • the broken line represents the number of iterations.
  • the performance of 20 iterations is more than 1dB higher than that
  • step S306 the decoding parameters are sent to the decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • An embodiment of the present application provides a data retransmission decoding method, by receiving code block check status information based on newly transmitted decoded data sent by a decoding unit, determining decoding parameters based on the code block check status information, and sending the decoding parameters to The decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • the data sending unit can determine the decoding parameters according to the code block check status information sent by the decoding unit, can determine the corresponding decoding parameters according to different code block check status information, and can ensure that the code block check status information is different. Dynamic adjustment of the decoding parameters used during retransmission decoding can ensure decoding quality, save system resources, and improve decoder performance.
  • an embodiment of the present application provides a data retransmission decoding method.
  • the method may be executed by a decoding unit and a data sending unit.
  • the decoding unit may be any communication device (such as a base station or a terminal device, etc.)
  • the data sending unit may be a data sending unit in any communication device (such as a base station or a terminal device, etc.).
  • the method may specifically include the following steps.
  • step S502 the decoding unit acquires new transmission decoded data, decodes and checks the code block to be decoded contained in the new transmission decoded data, and obtains the new transmission decoding result and code block check status information.
  • step S504 the decoding unit stores the new transmission decoding result and code block check status information.
  • step S506 the data sending unit receives the code block check status information based on the newly transmitted decoded data sent by the decoding unit.
  • step S508 the data transmission unit determines the redundancy version number based on the code block check status information.
  • the redundancy version number may be used to determine the redundancy version used for decoding. The later the redundancy version number, the greater the amount of redundant information it carries.
  • the decoding unit may send the code block check status information to the data sending unit, and the data sending unit may determine the decoding parameters during retransmission decoding according to the number of erroneous code blocks in the code block check status information.
  • step S510 based on the code block check status information, the data transmission unit determines a predetermined total delay, a single code block decoding delay, and the number of hard cores.
  • the predetermined total delay may be a predetermined arbitrary length, such as 1 second or 5 seconds, etc.
  • a single code block encryption delay may also be a predetermined arbitrary length
  • the number of hard cores may be included in the decoding unit for decoding The number of hard cores.
  • step S512 the data sending unit determines the number of iterations based on a predetermined total delay, a single code block decoding delay, and the number of hard cores.
  • the number of iterations of retransmission decoding may be determined according to the obtained predetermined total delay, decoding delay of a single code block and the number of hard cores.
  • the number of iterations may be:
  • s_cycle is the predetermined total delay
  • core_num is the number of hard cores
  • err_cb_num is the number of code blocks whose code status information is wrong
  • dec_cycle is a single decoding delay, according to the above formula
  • step S514 the data sending unit sends the decoding parameters to the decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • step S5166 the decoding unit acquires the data to be decoded for retransmission, and the data to be decoded for retransmission includes the code block to be decoded.
  • step S5128 the decoding unit determines whether the code block to be decoded contains the target code block that needs to be decoded again according to the code block check status information stored in advance.
  • step S520 if the code block to be decoded contains the target code block that needs to be decoded again, the decoding unit merges and decodes the currently stored first code block and the target code block based on the decoding parameters.
  • the decoding parameter may include a redundant version number and an iteration number.
  • the redundant version number may be used to determine the starting column position of the code block transmitted this time, and may be combined according to the redundant version number.
  • step S522 the decoding unit combines the combined decoding result with the stored first decoding result to obtain a retransmission decoding result, and updates the code block check status information according to the retransmission decoding result.
  • step S524 the data sending unit receives the code block check information sent by the decoding unit, and the updated code block check information is that the decoding unit decodes the retransmitted data to be decoded, and checks the code block by the obtained decoding result The information is obtained after updating.
  • step S526 the data sending unit updates the decoding parameters according to the updated code block check information.
  • the data sending unit updates the decoding parameters. If the request to retransmit the data sent by the decoding unit is received again, the updated decoding parameters can be sent to the decoding unit again for the decoding unit to receive the data for the third time. The received retransmission data to be decoded is decoded and verified.
  • An embodiment of the present application provides a data retransmission decoding method.
  • the decoding unit obtains retransmission data to be decoded, the retransmission data to be decoded includes the code block to be decoded, and then checks the status information according to the pre-stored code block to determine Whether the code block to be decoded contains the target code block that needs to be decoded again, if the code block to be decoded contains the target code block that needs to be decoded again, based on the decoding parameters, the currently stored first code block and the target code block are performed Combined decoding, where the first code block is a code block corresponding to the target code block, and the data sending unit may determine decoding parameters according to the code block check status information based on the newly transmitted decoded data sent by the received decoding unit.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information. According to the received retransmission data, only the target code block that needs to be decoded again is decoded.
  • the data sending unit can dynamically calculate the number of decoding iterations online in real time according to the code block check status information sent by the decoding unit, which can reduce the waste of resources when the decoding unit performs retransmission decoding and improve the decoder performance.
  • the above is the data retransmission decoding method provided by the embodiment of the present application. Based on the same idea, the embodiment of the present application also provides a data retransmission decoding system.
  • the data retransmission decoding system includes a decoding unit and a data sending unit.
  • the data sending unit is used to receive code block check status information sent by the decoding unit based on newly transmitted decoded data or based on retransmission of data to be decoded, determine decoding parameters according to the code block check status information, and The decoding parameters are sent to the decoding unit; the decoding unit is used to obtain the newly transmitted decoded data or the retransmitted data to be decoded, the newly transmitted decoded data and the retransmitted data to be decoded include Decoded code block; according to the stored last decoded code block check status information, determine whether the code block to be decoded contains the target code block that needs to be decoded again; if the code block to be decoded contains the need to be decoded again The decoded target code block, based on the decoding parameters, merges and decodes the currently stored first code block and the target code block, where the first code block is a code block corresponding to the target code block .
  • the decoding unit After the decoding unit decodes the obtained new transmission decoded data, it can send the stored code block check status information based on the new transmission decoded data to the data transmission unit.
  • the decoding parameters can be determined according to the code block check information and sent to the decoding unit.
  • the decoding unit After the decoding unit decodes the acquired retransmission decoded data, the combined decoding result and the stored first decoding result are combined, the code block check status information is updated, and the updated code block check status information is updated Sent to the data sending unit.
  • the data send unit can calculate the decoding parameters again according to the updated code block check status information, and can The decoding parameter is sent to the decoding unit, so that when the decoding unit receives the retransmitted data to be decoded again, it can decode the retransmitted data to be decoded again according to the decoding parameter.
  • the decoding unit is used for: acquiring retransmission data to be decoded, the retransmission data to be decoded includes code blocks to be decoded; and checking the state information based on the stored code blocks decoded last time, Determine whether the code block to be decoded contains a target code block that needs to be decoded again; if the code block to be decoded contains a target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code The block is merged and decoded with the target code block, wherein the first code block is a code block corresponding to the target code block.
  • the decoding unit is configured to: combine the combined decoding result with the stored first decoding result to obtain a retransmission decoding result, where the first decoding result is the last decoding process The decoding result of the correct code block is decoded.
  • the method further includes: updating the code block check status information according to the retransmission decoding result.
  • the decoding unit is configured to: send the code block check status information to a data sending unit, so that the data sending unit determines the predetermined according to the code block check status information Decoding parameter; receiving the predetermined decoding parameter sent by the data sending unit.
  • the decoding unit is configured to receive all data determined by the data sending unit based on the code block check status information, a predetermined total delay, a single code block decoding delay, and the number of hard cores.
  • the number of iterations; wherein, the number of iterations is:
  • s_cycle is the predetermined total delay
  • core_num is the number of hard cores
  • err_cb_num is the number of error code blocks in the code block check status information
  • dec_cycle is Describe the delay of decoding a single code block.
  • the decoding unit is used to: obtain new transmission decoded data, decode and check the code block to be decoded contained in the new transmission decoded data, to obtain a new transmission decoding result and the code Block check status information; store the new transmission decoding result and the code block check status information.
  • the verification methods for verifying the code blocks include: a cyclic redundancy check CRC method, a Hartenberg matrix verification method, a combined verification method of the CRC method and the Hartenberg matrix verification method.
  • the predetermined decoding parameter further includes a redundancy version number
  • the decoding unit is configured to: based on the redundancy version number, determine the first code block corresponding to the target code block Redundant data; merge and decode the redundant data with the target code block.
  • the data sending unit is used to: receive code block check status information based on newly transmitted decoded data sent by the decoding unit; determine decoding parameters according to the code block check status information; The decoding parameters are sent to the decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • the data sending unit is configured to receive the updated code block check information sent by the decoding unit, where the updated code block check information is the Decode the data to be decoded, and update the code block check information according to the obtained decoding result; update the decoding parameters according to the updated code block check information.
  • the decoding parameter includes a redundant version number and an iteration number
  • the data sending unit is used to: determine the redundant version number based on the code block check status information; based on the code Block check status information, determine the predetermined total delay, single code block decoding delay and the number of hard cores; determine the iteration according to the predetermined total delay, single code block decoding delay and the number of hard cores The number of times, where the number of iterations is:
  • s_cycle is the predetermined total delay
  • core_num is the number of hard cores
  • err_cb_num is the number of code blocks whose code block check status information is wrong
  • dec_cycle is Describe the delay of decoding a single code block.
  • An embodiment of the present application provides a data retransmission decoding system.
  • the data retransmission decoding system is used for a data retransmission decoding method.
  • the method includes: a decoding unit obtains data to be decoded by retransmission, and the data to be decoded includes data to be decoded.
  • Decode the code block and then determine whether the code block to be decoded contains the target code block that needs to be decoded again according to the stored code block check status information of the last decoding, if the code block to be decoded contains the target that needs to be decoded again
  • the code block based on the decoding parameters, the currently stored first code block and the target code block are combined and decoded, and the first code block is a code block corresponding to the target code block.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information. According to the received retransmission data, only the target code block that needs to be decoded again is decoded.
  • the data sending unit can dynamically calculate the number of decoding iterations online in real time according to the code block check status information sent by the decoding unit, which can reduce the waste of resources when the decoding unit performs retransmission decoding and improve the decoder performance.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information, and only decode the need again according to the received retransmission data
  • the target code block is decoded, which can ensure the decoding quality when the amount of data is large, and improve the decoding performance.
  • the embodiment of the present application further provides a data retransmission decoding device, as shown in FIG. 6.
  • the data retransmission decoding device includes: a first acquisition module 601, a determination module 602 and a decoding module 603, wherein: the first acquisition module 601 is used to acquire data to be retransmitted to be decoded, and The decoded code block; the judgment module 602 is used to judge whether the code block to be decoded contains the target code block that needs to be decoded again according to the stored last decoded code block check status information; the decoding module 603 is used to If the code block to be decoded contains a target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code block and the target code block are combined and decoded, wherein the first code block Is a code block corresponding to the target code block.
  • the apparatus further includes: a combination module, configured to combine the combined decoding result with the stored first decoding result to obtain a retransmission decoding result, where the first decoding result is The decoding result of decoding the correct code block in the last decoding process.
  • the device also includes an update module for updating the code block check status information according to the retransmission decoding result.
  • the device further includes: a sending module, configured to send the code block check status information to a data sending unit, so that the data sending unit checks the state information according to the code block, Determining the predetermined decoding parameter; a first receiving module, configured to receive the predetermined decoding parameter sent by the data sending unit.
  • the predetermined decoding parameter includes the number of iterations
  • the first receiving module includes: a first receiving unit configured to receive the data sending unit based on the code block check status information, a predetermined The number of iterations determined by the total delay, the decoding delay of a single code block, and the number of hard cores; wherein, the number of iterations is:
  • s_cycle is the predetermined total delay
  • core_num is the number of hard cores
  • err_cb_num is the number of error code blocks in the code block check status information
  • dec_cycle is Describe the delay of decoding a single code block.
  • the first obtaining module 601 is configured to obtain new transmission decoding data, decode and check the code block to be decoded contained in the new transmission decoding data, and obtain the new transmission decoding result and The code block checks status information.
  • the device also includes a storage module for storing the new transmission and decoding results and the code block check status information.
  • the verification methods for verifying the code blocks include: cyclic redundancy check (CRC, Cyclic Redundancy Check), H (Hartenberg) matrix check, and CRC+H matrix check the way.
  • the predetermined decoding parameter further includes a redundancy version number
  • the decoding module 603 includes: a decoding unit, configured to determine the location of the first code block based on the redundancy version number. Redundant data corresponding to the target code block; a merging unit, configured to merge and decode the redundant data with the target code block.
  • An embodiment of the present application provides a data retransmission decoding device.
  • the retransmission data to be decoded includes code blocks to be decoded, and judged according to the stored state information of the last decoded code block check Whether the code block to be decoded contains the target code block that needs to be decoded again, if the code block to be decoded contains the target code block that needs to be decoded again, based on predetermined decoding parameters, the currently stored first code block and the target code block For merge decoding, the first code block is a code block corresponding to the target code block.
  • the decoding unit can determine the target code block that needs to be decoded again according to the code block check status information, and only decode the target code block that needs to be decoded again according to the received retransmission data.
  • the amount of data is large.
  • it can dynamically calculate the number of decoding iterations online in real time and improve the decoder performance.
  • the embodiment of the present application further provides a data retransmission decoding device, as shown in FIG. 7.
  • the data retransmission decoding device includes: a second acquisition module 701, a parameter determination module 702, and a sending module 703, wherein: a second receiving module 701 is used to receive the code block check status based on the newly transmitted decoded data sent by the decoding unit Information; parameter determination module 702, used to determine decoding parameters based on the code block check status information; sending module 703, used to send the decoding parameters to the decoding unit, so that the decoding unit according to the The decoding parameters decode and verify the retransmitted data to be decoded.
  • the device further includes: a third receiving module, configured to receive the updated code block check information sent by the decoding unit, the updated code block check information is the decoding
  • the unit decodes the retransmitted data to be decoded, and updates the code block check information according to the obtained decoding result; an update module is used to update the data according to the updated code block check information Describe the decoding parameters.
  • the decoding parameter includes a redundant version number and the number of iterations.
  • the parameter determination module 702 includes: a first determination unit configured to determine the redundancy based on the code block check status information The remaining version number; a second determining unit, used to determine the predetermined total delay, decoding delay of a single code block, and the number of hard cores based on the code block check status information; a third determining unit, used according to the The predetermined total delay, the decoding delay of a single code block and the number of hard cores determine the number of iterations, where the number of iterations is:
  • s_cycle is the predetermined total delay
  • core_num is the number of hard cores
  • err_cb_num is the number of code blocks whose code block check status information is wrong
  • dec_cycle is Describe the delay of decoding a single code block.
  • An embodiment of the present application provides a data retransmission decoding device, which receives code block check status information based on newly transmitted decoded data sent by a decoding unit, determines decoding parameters based on the code block check status information, and sends the decoding parameters to The decoding unit, so that the decoding unit decodes and checks the retransmitted data to be decoded according to the decoding parameters.
  • the data sending unit can determine the decoding parameters according to the code block check status information sent by the decoding unit, can determine the corresponding decoding parameters according to different code block check status information, and can ensure that the code block check status information is different. Dynamic adjustment of the decoding parameters used during retransmission decoding can ensure decoding quality, save system resources, and improve decoder performance.
  • the embodiments of the present application provide a communication device.
  • the communication device includes a processor 810, a transceiver 820, a memory 830, and a bus interface.
  • the communication device further includes: a computer program stored on the memory 730 and running on the processor 810, which is implemented by the processor 710 when the computer program is executed.
  • a computer program stored on the memory 730 and running on the processor 810, which is implemented by the processor 710 when the computer program is executed.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 810 and various circuits of the memory represented by the memory 830 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
  • the bus interface provides an interface.
  • the transceiver 820 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
  • the processor 810 is responsible for managing the bus architecture and general processing, and the memory 730 may store data used by the processor 810 in performing operations.
  • Embodiments of the present application also provide a computer-readable storage medium, which stores a computer program, which when executed by a processor, implements the processes of FIGS. 1-5 in the above method embodiments, and The same technical effect can be achieved, and in order to avoid repetition, it will not be repeated here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.

Abstract

本申请实施例公开了一种数据的重传解码方法、装置、系统及通信设备，所述方法包括：获取重传待解码数据，重传待解码数据中包括待解码的码块(S102)，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块(S104)，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与目标码块进行合并解码(S106)，其中，第一码块为与目标码块对应的码块。

Description

一种数据的重传解码方法、装置、系统及通信设备
交叉引用
本申请引用于2018年12月27日递交的名称为“一种数据的重传解码方法、装置、系统及通信设备”的第201811609673.1号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及无线通信领域，尤其涉及一种数据的重传解码方法、装置、系统及通信设备。
背景技术
随着移动通信网络技术的不断发展，在LTE业务以及5G业务中，由于信道噪声和由于移动性带来的衰落以及其他用户带来的干扰，使得信道传输质量很差，因此，可以采用增量冗余重传的方式来对传输数据进行保护。
在进行数据重传时，发送方在第一次传输时会发送数据信息和一部分冗余信息，接收方在对以传输块(TB，Transport Block)或码块组(CBG，Code Block Group)为主的数据信息和一部分冗余信息进行合并解码失败后，会要求发送重传数据，发送方通常会在重传数据时发送额外的冗余信息，通过该冗余信息，可以降低信道编码率，提高解码成功率。
但是，随着用户量不断增加，尤其在5G业务中，数据量不断加大，一方面会导致解码器在重传时的解码能力降低，另一方面，数据量过大也会导致不能配置更高的迭代次数，使得解码性能较低，而且，在码率较低的情况下，待解码的数据量较少，由于迭代次数和解码器的吞吐量是固定的，从而会导致解码能力的浪费。
发明内容
本申请实施例提供的一种数据的重传解码方法，所述方法应用于解码单元，所述方法包括：获取重传待解码数据，所述重传待解码数据中包括待解码的码块；根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中 是否包含需要再次解码的目标码块；如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
本申请实施例提供的一种数据的重传解码方法，所述方法应用于数据发送单元，所述方法包括：接收解码单元发送的基于新传解码数据的码块校验状态信息；根据所述码块校验状态信息，确定解码参数；将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
本申请实施例提供的一种数据的重传解码系统，所述通信系统包括所述解码单元和所述数据发送单元，其中：所述数据发送单元用于接收解码单元发送的基于新传解码数据或基于重传待解码数据的码块校验状态信息，根据所述码块校验状态信息，确定解码参数，将所述解码参数发送给所述解码单元；所述解码单元，用于获取所述新传解码数据或所述重传待解码数据，所述新传解码数据以及所述重传待解码数据中包括待解码的码块；根据预先存储的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；如果所述待解码的码块中包含需要再次解码的目标码块，则基于所述解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
本申请实施例还提供一种数据的重传解码装置，所述方装置包括：第一获取模块，用于获取重传待解码数据，所述重传待解码数据中包括待解码的码块；判断模块，用于根据预先存储的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；解码模块，用于如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
本申请实施例还提供一种数据的重传解码装置，其特征在于，所述装置包括：第二接收模块，用于接收解码单元发送的基于新传解码数据的码块校验状态信息；参数确定模块，用于根据所述码块校验状态信息，确定解码参数；发送模块，用于将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
本申请实施例采用下述技术方案：通过获取重传待解码数据，重传待解码数据中包括待解码的码块，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与目标码块进行合并解码，其中，第一码块为与目标码块对应的码块。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
图1为本申请一种数据的重传解码方法实施例流程示意图；
图2为本申请另一种数据的重传解码方法实施例流程示意图；
图3为本申请又一种数据的重传解码方法实施例流程示意图；
图4为本申请一种迭代次数与误包率关系的示意图；
图5为本申请又一种数据的重传解码方法实施例流程示意图；
图6为本申请一种数据的重传解码装置实施例结构示意图；
图7为本申请又一种数据的重传解码装置实施例结构示意图；
图8为本申请一种通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
以下结合附图，详细说明本申请各实施例提供的技术方案。
实施例1
如图1所示，本申请实施例提供一种数据的重传解码方法，该方法的执行主体可以为解码单元，该解码单元可以是任意通信设备(例如基站或终端设备等)中的解码单元。该方法具体可以包括以下步骤。
在步骤S102中，获取重传待解码数据，重传待解码数据中包括待解码的码块。
其中，重传待解码数据可以是包含多个冗余比特信息的数据，其中，冗余比特信息可以是校验比特信息、循环冗余校验(CRC，Cyclic Redundancy Check)信息等任意冗余比特信息中的一个或多个，待解码的码块可以是任意待解码的传输块(TB，Transport Block)或码块组(CBG，Code Block Group)。
在实施中，随着移动通信网络技术的不断发展，在LTE业务中，由于信道噪声和由于移动性带来的衰落以及其他用户带来的干扰，使得信道传输质量很差，因此，可以采用增量冗余重传的方式来对传输数据进行保护。在进行数据重传时，发送方在第一次传输时会发送数据信息和一部分冗余信息，接收方在对以传输块(TB，Transport Block)或码块组(CBG，Code Block Group)为主的数据信息和一部分冗余信息进行合并解码失败后，会要求发送重传数据，发送方通常会在重传数据时发送额外的冗余信息，通过该冗余信息，可以降低信道编码率，提高解码成功率。
但是，随着用户量不断增加，尤其在5G业务中，数据量不断加大，一方面会导致解码器在重传时的解码能力降低，另一方面，数据量过大也会导致不能配置更高的迭代次数，使得解码性能较低，而且，在码率较低的情况下，待解码的数据量较少，由于迭代次数和解码器的吞吐量是固定的，从而导致解码能力的浪费。为此，本申请实施例提供一种能够解决上述问题的技术方案，具体可以包括以下内容。
当解码单元对第一次接收到的待解码数据和冗余数据(如冗余比特信息)进行解码，对解码结果进行校验时，如果存在错误的解码结果，则解码单元会向上层系统(如数据发送单元)发送第二次数据请求，即为重传待解码数据的获取请求，上层系统会将重传待解码数据发送给解码单元，其中，重传待解码数据中可以包含待解码的码块，以及与第一次发送的待解码数据中的冗余数据不同的冗余比特信息。
例如，在5G业务中，可以使用LDPC的编码方式对用户信息数据进行编码，在编码后，可以得到基于每个用户信息数据的码块的校验矩阵，其中，校验矩阵中可以包含用户信息数据以及对应的校验数据，此时，校验矩阵中的用户信息数据可以作为待解码数据，对应的校验数据可以作为冗余数据，第一 次发送的待解码数据可以是多个包含每个用户信息数据和校验数据的校验矩阵，即多个待解码的码块。当解码单元接收到多个待解码的码块后，对码块进行解码，如果存在错误的解码结果，解码单元可以发送第二次数据请求，即重传待解码数据的获取请求，此时，上层系统可以为每个用户信息数据进行二次编码，编码后得到的校验矩阵可以与第一次编码不同，例如，第一次编码得到的基于用户A的校验矩阵A中，可以有22列用户真实信息数据，以及5列校验数据，第二次基于用户A的校验矩阵B中，可以有22列用户真实信息数据，以及32列校验数据，在对用户信息数据进行二次编码后，可以将得到的校验矩阵，作为重传待解码数据发送给解码单元，解码单元可以获取该重传待解码数据。
此外，在5G业务外的其他业务中，还可以包括多种编码方式，以Turbo编码为例，在对每个码块进行Turbo编码之后，会对应每个码块数据生成系统位元比特(systematic bit)、第一奇偶校验位(first parity bit)、第二奇偶校验位(second parity bit)这三个比特信息，在第一次数据输出时，可以将码块的数据信息和上述三个冗余比特信息中的一个或多个冗余数据合并发送给解码单元，解码单元在接收到待解码数据和冗余数据后，可以对待解码数据和冗余数据进行合并解码，如果存在错误解码结果，则可以向上层系统发送第二次的数据请求，即，重传待解码数据的发送请求，上层系统在接收到重传待解码数据的发送请求后，会将重传待解码数据发送给解码单元，其中，重传待解码数据可以包含与第一次发送的待解码数据相同的数据，而包含的冗余数据可以与第一次发送的冗余数据不同，例如，第一次发送的待解码数据为码块1-码块3，第一次发送的冗余数据可以是每个码块的systematic bit，第二次发送的重传待解码数据可以为码块1-码块3，重传待解码数据对应的冗余数据可以是每个码块的两个奇偶校验位，即第一奇偶校验位(first parity bit)和第二奇偶校验位(second parity bit)，重传待解码数据对应的冗余数据也可以是包含全部比特信息的冗余数据。
此外，码块包含的冗余数据可以是奇偶校验数据，也可以包含其他的校验比特信息，例如循环冗余校验、H(Hartenberg)矩阵校验，或是循环冗余校验与H矩阵校验相结合的校验方式等产生的校验比特信息，具体的冗余数据内容可以根据实际情况的不同而有所不同，本申请实施例对此不做限定。
在步骤S104中，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块。
其中，码块校验状态信息可以是根据不同的校验方式对码块的解码结果进行校验后得到的校验状态信息。
在实施中，码块校验状态信息可以是解码单元根据对第一次接收到的待解码数据的解码结果进行校验后，存储的码块校验状态信息，根据该码块校验状态信息，可以确定接收到的重传待解码数据汇总，是否包含需要再次解码的目标码块，例如，重传待解码数据包括码块1-码块5，解码单元中存储的该码块1-码块5的码块校验状态信息可以是：码块1-正确，码块2-错误，码块3-正确，码块4-正确，码块5-错误，则根据该码块1-码块5的码块校验状态信息可以确定码块2和码块5位需要再次解码的目标码块。
在步骤S106中，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与目标码块进行合并解码。
其中，预定解码参数可以包含预定迭代次数，预定迭代次数可以是解码单元根据码块校验状态信息确定的迭代次数，也可以是接收到的上层系统(如数据发送单元)根据码块校验状态信息确定的迭代次数，或者是接收的用户设置的预定迭代次数，当前存储的第一码块可以是上一次接收的待解码数据中包含的码块，当前存储的与目标码块对应的码块可以是根据目标码块的编号或其他标识在当前存储的码块中查找到的码块。
在实施中，当确定了目标码块后，可以在当前存储的码块中查找到与目标码块对应的码块，将该码块与目标码块进行合并解码，例如，以LDPC编码方式为例，重传待解码数据中包含3个码块，分别为码块1-码块3，根据存储的码块校验状态信息可以确定码块2在上一次解码中已经被正确解码，则目标码块为码块1和码块3，即码块1和码块3需要再次解码，当前存储的码块1为上一次通过LDPC方式基于用户A的数据信息得到的矩阵A1，其中，矩阵A1中包含22列用户真实数据信息以及5列校验信息，当前存储的码块3为上一次通过LDPC方式基于用户C的数据信息得到的矩阵C1，其中，矩阵C1中包含22列用户真实数据信息以及7列校验信息，获取的重传待解码数据中，码块1的矩阵为A2，A2中包含22列用户真实数据信息以及9列校验信息，码块3的矩阵C2中包含22列用户真实数据信息以及9列校验信息，可以将矩 阵A1与矩阵A2进行合并解码，得到码块1对应的解码结果和校验结果，同样可以对码块3的矩阵C1和矩阵C2进行合并解码，得到码块3的解码结果和校验结果，如果码块1和码块3的校验结果都为正确，则码块1和码块3的解码结果即为合并解码的解码结果，其中，在合并解码的过程中，需基于预定的解码参数，即预定的迭代次数和预定的冗余版本号。
可以将合并解码的解码结果与存储的上次解码正确的解码进行合并，以确定重传解码结果，或者可以通过合并解码的解码结果对存储的上次解码的解码结果进行更新，将合并解码的解码结果中正确的解码结果替换存储的上次解码的解码结果，以确定重传解码结果。
本申请实施例提供一种数据的重传解码方法，通过获取重传待解码数据，重传待解码数据中包括待解码的码块，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。这样，解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能，还可以根据待解码的码块数量，实时动态的在线计算解码迭代次数，提高解码器性能。
实施例2
如图2所示，本申请实施例提供一种数据的重传解码方法，该方法的执行主体可以为解码单元，该解码单元可以是任意通信设备(例如基站或终端设备等)中的解码单元。该方法具体可以包括以下步骤。
在步骤S202中，获取新传解码数据，对新传解码数据中包含的待解码的码块进行解码和校验，得到新传解码结果和码块校验状态信息。
其中，新传解码数据可以是包含传输块或码块组的任意数据。
在实施中，解码单元可以对获取的新传解码数据中待解码的码块进行解码和校验，并存储得到的新传解码结果和码块校验状态信息，例如，新传解码数据中可以包含5个码块，分别为码块1-码块5，对该5个码块进行解码和校验，得到每个码块对应的解码结果和校验结果，存储该5个码块的解码结果和 校验结果，例如，以Turbo编码为例，每个码块可以包含3个校验比特信息，即，系统位元比特(systematic bit)、第一奇偶校验位(first parity bit)、第二奇偶校验位(second parity bit)，其中，系统位元比特(systematic bit)为解码必须的比特信息，新传解码数据中每个码块可以带有对应的systematic bit和部分parity bit，例如，新传解码数据可以包含5个码块的数据、所有码块对应的系统位元比特信息，以及码块1和码块2的第一奇偶校验位的比特信息，解码单元在接收到该新传解码数据后，根据每个码块的冗余比特信息，可以对该码块进行解码和校验，得到解码结果后，可以对每个码块的解码结果进行校验，如果校验结果为：码块1-正确，码块2-错误，码块3-正确，码块4-正确，码块5-错误，则可以存储该新传解码结果和每个码块对应的码块校验状态信息。
在步骤S204中，存储新传解码结果和码块校验状态信息，并根据码块校验状态信息，确定解码参数。
其中，解码参数可以包括冗余版本号以及迭代次数，迭代次数可以是解码单元根据存储的码块校验状态信息确定的参数。
在实施中，除实施例一步骤S106中通过预定的解码参数进行合并解码外，解码单元还可以根据对新传解码数据进行解码后的码块校验状态信息，确定重传待解码的解码参数，例如，重传待解码的解码参数可以是解码单元根据自己的数据处理能力确定的解码参数，也可以是解码单元根据重传待解码数据中，目标码块的数量确定的解码参数，其中，如果码块校验状态信息中错误的码块越少，则对应的迭代次数越大，解码单元的解码性能越好。
在步骤S206中，获取重传待解码数据，重传待解码数据中包括待解码的码块。
在步骤S208中，根据预先存储的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块。
上述步骤S206-S208的具体处理过程可以参见实施例一S102-S104中的相关内容，再此不再赘述。
在步骤S210中，如果待解码的码块中包含需要再次解码的目标码块，则基于冗余版本号，确定第一码块中与目标码块对应的冗余数据。
在实施中，重传待解码数据中的冗余数据可以存放在环形器中，在进行Turbo编码后，得到每个码块的3个不同比特信息，首先将码块的系统位元比 特存放入环形器中，然后在依次存放要传输的第一奇偶校验位和/或第二奇偶校验位，解码单元在接收到存储冗余数据的环形器后，可以根据冗余版本号，确定提取冗余数据的起始位置。
在步骤S212中，将冗余数据与目标码块进行合并解码。
基于冗余版本号，对需要进行解码的码块合并解码，得到合并解码的解码结果。
根据新传以及重传时的解码矩阵的大小，如果冗余版本号相同，那么重传解码时延是新传解码时延的n倍，那么在重传解码时的解码处理能力就只有新传解码时的1/n，如果此时的信道条件下，错误码块率为m％，整个传输块全部的重传解码的时延为X，则只对错误的码块进行解码的时延为m％*X，即，在相同的时间内，对错误码块进行解码的能力比对全部码块进行再次解码的能力提高了1/(m％)倍。
在步骤S214中，将合并解码的结果与存储的第一解码结果进行组合，得到重传解码结果。
其中，第一解码结果可以是上一次解码过程中解码正确的码块的解码结果。
在实施中，当对错误的码块进行再次解码后，可以将重传解码结果(即合并解码的结果)与存储的第一解码结果进行合并输出，例如，根据存储的码块校验状态信息可以确定正确的码块为码块2、码块4和码块5，需要再次解码的错误码块为码块1和码块3，则对码块1和码块3进行再次解码后，可以得到的新的码块1和码块3的合并解码的结果，可以将该合并解码的结果与存储的码块2、码块4和码块5的第一解码结果进行合并排序输出，如，存储的码块2的解码结果为a，码块4的解码结果为b，码块5的解码结果为c，对码块1进行重传解码后的合并解码的结果为d，对码块3进行重传解码后的合并解码的结果为e，则输出后的解码结果可以根据码块的顺序进行排序输出，即得到的重传解码结果可以为d，a，e，b，c。
在步骤S216中，根据重传解码结果对码块校验状态信息进行更新。
在实施中，对重传待解码数据进行解码时，如果对目标码块的解码结果进行校验时，存在错误的解码结果，则可以根据该解码校验状态对存储的码块校验状态信息进行更新，例如，需要再次解码的目标码块为码块1和码块3， 码块2、码块4和码块5的码块校验状态信息为正确，不需要再次解码，如果对码块1和码块3进行重传解码后，得到码块1的重传待解码结果为正确，得到的码块3的重传待解码结果为错误，则可以将该重传待解码结果存储到码块校验状态信息中，即将对应的码块1的码块校验状态信息更改为正确，码块3的码块校验状态信息不变，仍为错误。
本申请实施例提供一种数据的重传解码方法，通过获取重传待解码数据，重传待解码数据中包括待解码的码块，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与目标码块进行合并解码，其中，第一码块为与目标码块对应的码块。这样，解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能，还可以根据待解码的码块数量，实时动态的在线计算解码迭代次数，提高解码器性能。
实施例3
如图3所示，本申请实施例提供一种数据的重传解码方法，该方法的执行主体可以为解码单元，该解码单元可以是任意通信设备(例如基站或终端设备等)中的解码单元。该方法具体可以包括以下步骤。
在步骤S302中，接收解码单元发送的基于新传解码数据的码块校验状态信息。
在步骤S304中，根据码块校验状态信息，确定解码参数。
在实施中，数据发送单元根据码块校验状态信息中错误的码块数量，以及解码单元的解码能力等信息，可以确定重传解码时的解码参数，解码参数可以包括冗余版本号和迭代次数，其中，解码单元的解码能力可以包括解码单元的解码硬核的个数，单个码块的解码时延等。
此外，码块校验状态信息中错误的码块越少，迭代次数越大，相对应的解码正确率越高，解码性能越好，在不同信噪比的条件下，达到近似的误码率需要的迭代次数可以不同，例如，如图4所示，在加性高斯白噪声(AWGN，Additive White Gaussian Noise)信道条件下，以100资源块(RB，Resources  Block)，调制与编码策略(MCS，Modulation and Coding Scheme)28为例，在图4的仿真结果中，横轴表示信噪比，纵轴标识误包率，折线表示迭代次数，从图4可以看出，在同样的误包率的前提下，迭代20次比迭代6次的性能增长1dB以上。
在步骤S306中，将解码参数发送给解码单元，以使解码单元根据解码参数对重传待解码数据进行解码及校验。
本申请实施例提供一种数据的重传解码方法，通过接收解码单元发送的基于新传解码数据的码块校验状态信息，根据码块校验状态信息，确定解码参数，将解码参数发送给解码单元，以使解码单元根据所述解码参数对重传待解码数据进行解码及校验。这样，数据发送单元可以根据解码单元发送的码块校验状态信息确定解码参数，可以根据不同的码块校验状态信息确定对应的解码参数，可以保证根据码块校验状态信息的不同，对重传解码时使用的解码参数进行动态的调整，可以保证解码质量，节约系统资源，提高解码器性能。
实施例4
如图5所示，本申请实施例提供一种数据的重传解码方法，该方法的执行主体可以为解码单元和数据发送单元，该解码单元可以是任意通信设备(例如基站或终端设备等)中的解码单元，该数据发送单元可以是任意通信设备(例如基站或终端设备等)中的数据发送单元。该方法具体可以包括以下步骤。
在步骤S502中，解码单元获取新传解码数据，对新传解码数据中包含的待解码的码块进行解码和校验，得到新传解码结果和码块校验状态信息。
在步骤S504中，解码单元存储新传解码结果和码块校验状态信息。
在步骤S506中，数据发送单元接收解码单元发送的基于新传解码数据的码块校验状态信息。
在步骤S508中，数据发送单元基于码块校验状态信息，确定冗余版本号。
其中，冗余版本号可以是用于确定用于解码的冗余版本，冗余版本号越往后，则其携带的冗余信息量越大。
在实施中，解码单元可以将码块校验状态信息发送给数据发送单元，数据发送单元可以根据码块校验状态信息中错误的码块数量，确定重传解码时的 解码参数。
在步骤S510中，数据发送单元基于码块校验状态信息，确定预定的总时延、单个码块解码时延和硬核个数。
其中，预定的总时延可以是预定的任意时长，如1秒或5秒等，单个码块加密时延也可以是预定的任意时长，硬核个数可以是解码单元内包含的用于解码的硬核的个数。
在步骤S512中，数据发送单元根据预定的总时延、单个码块解码时延和硬核个数，确定迭代次数。
在实施中，可以根据获取的预定的总时延、单个码块解码时延和硬核个数，确定重传解码的迭代次数，例如，迭代次数可以为：
Figure PCTCN2019108577-appb-000001
其中，ite为迭代次数，s_cycle为预定的总时延、core_num为硬核个数，err_cb_num为码块校验状态信息为错误的码块的个数，dec_cycle为单个解码时延，根据上述公式可以看出，系统总时延越大、解码硬核的个数越多、码块校验状态信息中错误的码块的个数越少、单个解码时延越小，则计算得到的迭代次数就越大，解码结对的概率就越大，对应的解码性能就越好。
在步骤S514中，数据发送单元将解码参数发送给解码单元，以使解码单元根据解码参数对重传待解码数据进行解码及校验。
在步骤S516中，解码单元获取重传待解码数据，重传待解码数据中包括待解码的码块。
在步骤S518中，解码单元根据预先存储的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块。
上述步骤S516-S518的具体处理过程可以参见实施例一S102-S104中的相关内容，再此不再赘述。
在步骤S520中，如果待解码的码块中包含需要再次解码的目标码块，则解码单元基于解码参数，将当前存储的第一码块与目标码块进行合并解码。
其中，解码参数可以包括冗余版本号和迭代次数，冗余版本号可以是用来确定在本次传输的码块的起始列位置，可以根据冗余版本号来进行合并。
上述步骤S520的具体处理过程可以参见实施例一S106中的相关内容， 再此不再赘述。
在步骤S522中，解码单元将合并解码的结果与存储的第一解码结果进行组合，得到重传解码结果，并根据重传解码结果对码块校验状态信息进行更新。
上述步骤S522的具体处理过程可以参见实施例一S106中的相关内容，再此不再赘述。
在步骤S524中，数据发送单元接收解码单元发送的码块校验信息，更新后的码块校验信息是解码单元对重传待解码数据进行解码，并通过得到的解码结果对码块校验信息进行更新后得到。
在步骤S526中，数据发送单元根据更新后的码块校验信息，更新解码参数。
在实施中，数据发送单元对解码参数进行了更新，如果再次接收到解码单元发送的重发数据的请求，可以将更新后的解码参数再次发送给解码单元，以供解码单元对第三次接收到的重传待解码数据进行解码和校验。
本申请实施例提供一种数据的重传解码方法，解码单元通过获取重传待解码数据，重传待解码数据中包括待解码的码块，然后根据预先存储的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于解码参数，将当前存储的第一码块与目标码块进行合并解码，其中，第一码块为与目标码块对应的码块，数据发送单元可以根据接收到的解码单元发送的基于新传解码数据的码块校验状态信息，确定解码参数。这样，解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能，数据发送单元根据解码单元发送的码块校验状态信息可以实时动态的在线计算解码迭代次数，可以减少解码单元在进行重传解码时的资源浪费，提高解码器性能。
实施例5
以上为本申请实施例提供的数据的重传解码方法，基于同样的思路，本申请实施例还提供一种数据的重传解码系统，该数据的重传解码系统包括解码 单元和数据发送单元，其中：所述数据发送单元用于接收解码单元发送的基于新传解码数据或基于重传待解码数据的码块校验状态信息，根据所述码块校验状态信息，确定解码参数，将所述解码参数发送给所述解码单元；所述解码单元，用于获取所述新传解码数据或所述重传待解码数据，所述新传解码数据以及所述重传待解码数据中包括待解码的码块；根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；如果所述待解码的码块中包含需要再次解码的目标码块，则基于所述解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
其中，当解码单元对获得的新传解码数据进行解码后，可以将存储的基于新传解码数据的码块校验状态信息发送给数据发送单元，数据发送单元在接收到基于新传解码数据的码块校验状态信息后，可以根据该码块校验信息，确定解码参数，并发送给解码单元。当解码单元对获取的重传解码数据进行解码后，将合并解码的结果与存储的第一解码结果进行合并，对码块校验状态信息进行更新，并将更新后的码块校验状态信息发送给数据发送单元，数据发送单元接收到基于重传待解码数据的，更新后的码块校验状态信息后，可以根据更新后的码块校验状态信息，再次计算解码参数，并可以将该解码参数发送给解码单元，以供解码单元再次接收到重传待解码数据时，可以根据该解码参数，对再次接收到的重传待解码数据进行解码。
在本申请实施例中，所述解码单元用于：获取重传待解码数据，所述重传待解码数据中包括待解码的码块；根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
在本申请实施例中，所述解码单元用于：将所述合并解码的结果与存储的第一解码结果进行组合，得到重传解码结果，其中，所述第一解码结果为上一次解码过程中解码正确的码块的解码结果。
所述方法还包括：根据所述重传解码结果对所述码块校验状态信息进行更新。
在本申请实施例中，所述解码单元用于：将所述码块校验状态信息发送给数据发送单元，以使所述数据发送单元根据所述码块校验状态信息，确定所述预定解码参数；接收所述数据发送单元发送的所述预定解码参数。
在本申请实施例中，所述解码单元用于：接收所述数据发送单元基于所述码块校验状态信息、预定的总时延、单个码块解码时延和硬核个数确定的所述迭代次数；其中，所述迭代次数为：
Figure PCTCN2019108577-appb-000002
其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所述硬核个数，err_cb_num为所述码块校验状态信息中错误的码块的个数，dec_cycle为所述单个码块解码时延。
在本申请实施例中，所述解码单元用于：获取新传解码数据，对所述新传解码数据中包含的待解码的码块进行解码和校验，得到新传解码结果和所述码块校验状态信息；存储所述新传解码结果和所述码块校验状态信息。
在本申请实施例中，对所述码块进行校验的校验方式包括：循环冗余校验CRC方式，Hartenberg矩阵校验方式，CRC方式和Hartenberg矩阵校验方式的组合校验方式。
在本申请实施例中，所述预定解码参数还包括冗余版本号，所述解码单元用于：基于所述冗余版本号，确定所述第一码块中与所述目标码块对应的冗余数据；将所述冗余数据与所述目标码块进行合并解码。
在本申请实施例中，所述数据发送单元用于：接收解码单元发送的基于新传解码数据的码块校验状态信息；根据所述码块校验状态信息，确定解码参数；将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
在本申请实施例中，所述数据发送单元用于：接收所述解码单元发送的更新后的码块校验信息，所述更新后的码块校验信息是所述解码单元对所述重传待解码数据进行解码，并通过得到的解码结果对所述码块校验信息进行更新后得到；根据所述更新后的码块校验信息，更新所述解码参数。
在本申请实施例中，所述解码参数包括冗余版本号和迭代次数，所述数据发送单元用于：基于所述码块校验状态信息，确定所述冗余版本号；基于所 述码块校验状态信息，确定预定的总时延、单个码块解码时延和硬核个数；根据所述预定的总时延、单个码块解码时延和硬核个数，确定所述迭代次数，其中，迭代次数为：
Figure PCTCN2019108577-appb-000003
其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所述硬核个数，err_cb_num为所述码块校验状态信息为错误的码块的个数，dec_cycle为所述单个码块解码时延。
本申请实施例提供一种数据的重传解码系统，该数据的重传解码系统用于数据的重传解码方法，包括：解码单元通过获取重传待解码数据，重传待解码数据中包括待解码的码块，然后根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于解码参数，将当前存储的第一码块与目标码块进行合并解码，第一码块为与目标码块对应的码块。这样，解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能，数据发送单元根据解码单元发送的码块校验状态信息可以实时动态的在线计算解码迭代次数，可以减少解码单元在进行重传解码时的资源浪费，提高解码器性能。
本申请实施例采用的上述至少一个技术方案能够达到以下有益效果：解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能。
实施例6
以上为本申请实施例提供的数据的重传解码方法，基于同样的思路，本申请实施例还提供一种数据的重传解码装置，如图6所示。
该数据的重传解码装置包括：第一获取模块601，判断模块602和解码模块603，其中：第一获取模块601，用于获取重传待解码数据，所述重传待解码数据中包括待解码的码块；判断模块602，用于根据存储的上次解码的码 块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；解码模块603，用于如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
在本申请实施例中，所述装置还包括：组合模块，用于将所述合并解码的结果与存储的第一解码结果进行组合，得到重传解码结果，其中，所述第一解码结果为上一次解码过程中解码正确的码块的解码结果。
所述装置还包括：更新模块，用于根据所述重传解码结果对所述码块校验状态信息进行更新。
在本申请实施例中，所述装置还包括：发送模块，用于将所述码块校验状态信息发送给数据发送单元，以使所述数据发送单元根据所述码块校验状态信息，确定所述预定解码参数；第一接收模块，用于接收所述数据发送单元发送的所述预定解码参数。
在本申请实施例中，所述预定解码参数包括迭代次数，所述第一接收模块，包括：第一接收单元，用于接收所述数据发送单元基于所述码块校验状态信息、预定的总时延、单个码块解码时延和硬核个数确定的所述迭代次数；其中，所述迭代次数为：
Figure PCTCN2019108577-appb-000004
其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所述硬核个数，err_cb_num为所述码块校验状态信息中错误的码块的个数，dec_cycle为所述单个码块解码时延。
在本申请实施例中，所述第一获取模块601，用于获取新传解码数据，对所述新传解码数据中包含的待解码的码块进行解码和校验，得到新传解码结果和所述码块校验状态信息。
所述装置还包括：存储模块，用于存储所述新传解码结果和所述码块校验状态信息。
在本申请实施例中，对所述码块进行校验的校验方式包括：循环冗余校验(CRC，Cyclic Redundancy Check)方式，H(Hartenberg)矩阵校验方式，CRC+H矩阵校验方式。
在本申请实施例中，所述预定解码参数还包括冗余版本号，所述解码模块603，包括：解码单元，用于基于所述冗余版本号，确定所述第一码块中与所述目标码块对应的冗余数据；合并单元，用于将所述冗余数据与所述目标码块进行合并解码。
本申请实施例提供一种数据的重传解码装置，通过获取重传待解码数据，重传待解码数据中包括待解码的码块，根据存储的上次解码的码块校验状态信息，判断待解码的码块中是否包含需要再次解码的目标码块，如果待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与目标码块进行合并解码，第一码块为与目标码块对应的码块。这样，解码单元根据码块校验状态信息，可以确定需要再次解码的目标码块，根据接收到的重传数据，只对需要再次解码的目标码块进行解码，可以在数据量较大时，保证解码质量，同时提高解码性能，还可以根据待解码的码块数量，实时动态的在线计算解码迭代次数，提高解码器性能。
实施例7
以上为本申请实施例提供的数据的重传解码方法，基于同样的思路，本申请实施例还提供一种数据的重传解码装置，如图7所示。
该数据的重传解码装置包括：第二获取模块701，参数确定模块702，发送模块703，其中：第二接收模块701，用于接收解码单元发送的基于新传解码数据的码块校验状态信息；参数确定模块702，用于根据所述码块校验状态信息，确定解码参数；发送模块703，用于将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
在本申请实施例中，所述装置还包括：第三接收模块，用于接收所述解码单元发送的更新后的码块校验信息，所述更新后的码块校验信息是所述解码单元对所述重传待解码数据进行解码，并通过得到的解码结果对所述码块校验信息进行更新后得到；更新模块，用于根据所述更新后的码块校验信息，更新所述解码参数。
在本申请实施例中，所述解码参数包括冗余版本号和迭代次数，所述参数确定模块702，包括：第一确定单元，用于基于所述码块校验状态信息，确定所述冗余版本号；第二确定单元，用于基于所述码块校验状态信息，确定预 定的总时延、单个码块解码时延和硬核个数；第三确定单元，用于根据所述预定的总时延、单个码块解码时延和硬核个数，确定所述迭代次数，其中，迭代次数为：
Figure PCTCN2019108577-appb-000005
其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所述硬核个数，err_cb_num为所述码块校验状态信息为错误的码块的个数，dec_cycle为所述单个码块解码时延。
本申请实施例提供一种数据的重传解码装置，通过接收解码单元发送的基于新传解码数据的码块校验状态信息，根据码块校验状态信息，确定解码参数，将解码参数发送给解码单元，以使解码单元根据所述解码参数对重传待解码数据进行解码及校验。这样，数据发送单元可以根据解码单元发送的码块校验状态信息确定解码参数，可以根据不同的码块校验状态信息确定对应的解码参数，可以保证根据码块校验状态信息的不同，对重传解码时使用的解码参数进行动态的调整，可以保证解码质量，节约系统资源，提高解码器性能。
实施例8
相应于本申请实施例提供的数据的重传解码方法、系统，本申请实施例提供一种通信设备，参见图8所示，通信设备包括处理器810、收发机820、存储器830和总线接口。其中：在本申请实施例中，通信设备还包括：存储在存储器730上并可在所述处理器810上运行的计算机程序，所述计算机程序被所述处理器710执行时实现上述图1-图5所示的方法中的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器810代表的一个或多个处理器和存储器830代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机820可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。
处理器810负责管理总线架构和通常的处理，存储器730可以存储处理 器810在执行操作时所使用的数据。
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述方法实施例中的图1-图5的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
本领域技术人员应明白，本申请的实施例可提供为方法、系统或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (14)

  1. 一种数据的重传解码方法，其特征在于，所述方法应用于解码单元，所述方法包括：
    获取重传待解码数据，所述重传待解码数据中包括待解码的码块；
    根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；
    如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
  2. 根据权利要求1所述的方法，其特征在于，所述将当前存储的第一码块与所述目标码块进行合并解码之后，所述方法还包括：
    将所述合并解码的结果与存储的第一解码结果进行组合，得到重传解码结果，其中，所述第一解码结果为上一次解码过程中解码正确的码块的解码结果；
    所述方法还包括：
    根据所述重传解码结果对所述码块校验状态信息进行更新。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    将所述码块校验状态信息发送给数据发送单元，以使所述数据发送单元根据所述码块校验状态信息，确定所述预定解码参数；
    接收所述数据发送单元发送的所述预定解码参数。
  4. 根据权利要求3所述的方法，其特征在于，所述预定解码参数包括迭代次数，所述接收所述数据发送单元发送的所述预定解码参数，包括：
    接收所述数据发送单元基于所述码块校验状态信息、预定的总时延、单个码块解码时延和硬核个数确定的所述迭代次数；
    其中，所述迭代次数为：
    Figure PCTCN2019108577-appb-100001
    其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所 述硬核个数，err_cb_num为所述码块校验状态信息中错误的码块的个数，dec_cycle为所述单个码块解码时延。
  5. 根据权利要求1所述的方法，其特征在于，所述获取重传待解码数据之前，还包括：
    获取新传解码数据，对所述新传解码数据中包含的待解码的码块进行解码和校验，得到新传解码结果和所述码块校验状态信息；
    存储所述新传解码结果和所述码块校验状态信息。
  6. 根据权利要求5所述的方法，其特征在于，对所述码块进行校验的校验方式包括：循环冗余校验CRC方式，Hartenberg矩阵校验方式，CRC方式和Hartenberg矩阵校验方式的组合校验方式。
  7. 根据权利要求4所述的方法，其特征在于，所述预定解码参数还包括冗余版本号，所述基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，包括：
    基于所述冗余版本号，确定所述第一码块中与所述目标码块对应的冗余数据；
    将所述冗余数据与所述目标码块进行合并解码。
  8. 一种数据的重传解码方法，其特征在于，所述方法应用于数据发送单元，所述方法包括：
    接收解码单元发送的基于新传解码数据的码块校验状态信息；
    根据所述码块校验状态信息，确定解码参数；
    将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    接收所述解码单元发送的更新后的码块校验信息，所述更新后的码块校验信息是所述解码单元对所述重传待解码数据进行解码，并通过得到的解码结果对所 述码块校验信息进行更新后得到；
    根据所述更新后的码块校验信息，更新所述解码参数。
  10. 根据权利要求8所述的方法，其特征在于，所述解码参数包括冗余版本号和迭代次数，所述根据所述码块校验状态信息，确定解码参数，包括：
    基于所述码块校验状态信息，确定所述冗余版本号；
    基于所述码块校验状态信息，确定预定的总时延、单个码块解码时延和硬核个数；
    根据所述预定的总时延、单个码块解码时延和硬核个数，确定所述迭代次数，其中，迭代次数为：
    Figure PCTCN2019108577-appb-100002
    其中，ite为所述迭代次数，s_cycle为所述预定的总时延、core_num为所述硬核个数，err_cb_num为所述码块校验状态信息中错误的码块的个数，dec_cycle为所述单个码块解码时延。
  11. 一种数据的重传解码系统，其特征在于，所述数据的重传解码系统包括解码单元和数据发送单元，其中：
    所述数据发送单元，用于接收解码单元发送的基于新传解码数据或基于重传待解码数据的码块校验状态信息，根据所述码块校验状态信息，确定解码参数，将所述解码参数发送给所述解码单元；
    所述解码单元，用于获取所述新传解码数据或所述重传待解码数据，所述新传解码数据以及所述重传待解码数据中包括待解码的码块；根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；如果所述待解码的码块中包含需要再次解码的目标码块，则基于所述解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
  12. 一种数据的重传解码装置，其特征在于，所述方装置包括：
    第一获取模块，用于获取重传待解码数据，所述重传待解码数据中包括待 解码的码块；
    判断模块，用于根据存储的上次解码的码块校验状态信息，判断所述待解码的码块中是否包含需要再次解码的目标码块；
    解码模块，用于如果所述待解码的码块中包含需要再次解码的目标码块，则基于预定解码参数，将当前存储的第一码块与所述目标码块进行合并解码，其中，所述第一码块为与所述目标码块对应的码块。
  13. 一种数据的重传解码装置，其特征在于，所述装置包括：
    第二接收模块，用于接收解码单元发送的基于新传解码数据的码块校验状态信息；
    参数确定模块，用于根据所述码块校验状态信息，确定解码参数；
    发送模块，用于将所述解码参数发送给所述解码单元，以使所述解码单元根据所述解码参数对重传待解码数据进行解码及校验。
  14. 一种通信设备，其特征在于，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1-7中或权利要求8-10中任一项所述的数据的重传解码方法的步骤。
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