WO2019169966A1 - Procédé de traitement de bloc de données d'informations, et terminal de transmission - Google Patents

Procédé de traitement de bloc de données d'informations, et terminal de transmission Download PDF

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Publication number
WO2019169966A1
WO2019169966A1 PCT/CN2019/072795 CN2019072795W WO2019169966A1 WO 2019169966 A1 WO2019169966 A1 WO 2019169966A1 CN 2019072795 W CN2019072795 W CN 2019072795W WO 2019169966 A1 WO2019169966 A1 WO 2019169966A1
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Prior art keywords
data block
information data
channel coding
crc
processing
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PCT/CN2019/072795
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English (en)
Chinese (zh)
Inventor
白伟
邢艳萍
缪德山
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电信科学技术研究院有限公司
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Publication of WO2019169966A1 publication Critical patent/WO2019169966A1/fr

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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
    • 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
    • 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
    • H04L1/0041—Arrangements at the transmitter end

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method and a transmitting end of an information data block.
  • 5G new access technologies 5 Generation New RAT, 5G NR
  • 5G NR 5 Generation New RAT
  • An important requirement in the 5G NR system is low latency and high reliability communication, such as transmission schemes such as Ultra Reliable & Low Latency Communication (URLLC).
  • URLLC Ultra Reliable & Low Latency Communication
  • the URLLC service it is generally a small packet, that is, the information bits to be transmitted are small at a time.
  • the URLLC service has a very high reliability requirement, such as a block error rate lower than 1E-5 (1 times 10 times negative) A power of 5), if such high reliability is to be achieved, a particularly low coding rate is usually required. Therefore, a particularly small packet and a particularly low code rate for a given resource may result in a particularly small block of information.
  • channel coding such as direct channel coding such as Low Density Parity Check (LDPC)
  • the coding performance may be degraded. In the low signal-to-noise ratio (SNR) region, the block error rate is high, and in the high SNR region, an error floor occurs.
  • SNR signal-to-noise ratio
  • the embodiments of the present disclosure provide a method and a sending end of an information data block to solve the problem that the encoding performance is relatively low.
  • An embodiment of the present disclosure provides a method for processing an information data block, including:
  • the transmitting end performs pre-processing on the information data block to obtain a pre-processed data block
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the sending end performs pre-processing on the information data block to obtain a pre-processed data block, including:
  • the transmitting end adds a Cyclic Redundancy Check (CRC) to the information data block, and performs the pre-processing on the added CRC and the information data block to obtain a pre-processed data block.
  • CRC Cyclic Redundancy Check
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the explicit indication includes:
  • DCI Downlink Control Information
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block has undergone the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the embodiment of the present disclosure further provides a method for processing an information data block, including:
  • the receiving end decodes the signal sent by the transmitting end to obtain a pre-processed data block, wherein the receiving end determines, by the indication of the transmitting end, that the information data block of the signal is pre-processed before channel coding;
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block.
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block, including:
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block and the CRC;
  • the information data block is output.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the embodiment of the present disclosure further provides a sending end, including:
  • a preprocessing module configured to preprocess the information data block to obtain a preprocessed data block
  • a transmission module configured to perform channel coding on the preprocessed data block, and transmit a signal to the receiving end, where the signal is a signal obtained by the preprocessed data block by using the channel coding;
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the embodiment of the present disclosure further provides a receiving end, including:
  • a decoding module configured to receive, by the receiving end, a signal sent by the transmitting end to obtain a pre-processed data block, where the receiving end determines, by the indication of the transmitting end, that the information data block of the signal is pre-processed before channel coding deal with;
  • an operation module configured to perform the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • An embodiment of the present disclosure further provides a transmitting end, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor,
  • the transceiver is configured to preprocess the information data block to obtain a preprocessed data block
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding
  • the processor is configured to read a program in the memory and perform the following process:
  • the transceiver is configured to perform channel coding on the preprocessed data block, and transmit a signal to the receiving end, where the signal is a signal obtained by the channel coding of the preprocessed data block;
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the preprocessing the information data block to obtain the preprocessed data block includes:
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • An embodiment of the present disclosure further provides a receiving end, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor,
  • the transceiver is configured to decode a signal sent by the sending end to obtain a pre-processed data block, where the receiving end determines, by the indication of the sending end, that the information data block of the signal is pre-processed before channel coding. ;
  • the processor is configured to read a program in the memory and perform the following process:
  • performing the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block including:
  • the information data block is output.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program is stored, wherein the program is executed by the processor, and the method for processing the information data block on the transmitting end side that is further provided by the embodiment of the present disclosure is implemented.
  • the steps in the processing method of the information data block on the receiving end side of the embodiment of the present disclosure are also implemented when the program is executed by the processor.
  • the transmitting end performs pre-processing on the information data block to obtain a pre-processed data block; performs channel coding on the pre-processed data block, and transmits a signal to the receiving end, where the signal is the pre-processing a signal obtained by the data block being encoded by the channel; wherein the transmitting end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the channel coding performance can be improved by the embodiment of the present disclosure compared to directly coding the information data block in the related art.
  • FIG. 1 is a schematic structural diagram of a network applicable to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for processing an information data block according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of another method for processing an information data block according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of another method for processing an information data block according to an embodiment of the present disclosure.
  • FIG. 5 is a structural diagram of a transmitting end according to an embodiment of the present disclosure.
  • FIG. 6 is a structural diagram of a receiving end according to an embodiment of the present disclosure.
  • FIG. 7 is a structural diagram of another transmitting end according to an embodiment of the present disclosure.
  • FIG. 8 is a structural diagram of another receiving end according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a network structure applicable to an embodiment of the present disclosure.
  • the device includes a transmitting end 11 and a receiving end 12 , where the sending end 11 can be a terminal or a network side device, where the terminal can It is a User Equipment (UE) or other terminal device, such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a personal digital assistant (PDA), and a mobile Internet device.
  • UE User Equipment
  • PDA personal digital assistant
  • MID Mobile Internet Device
  • a terminal device such as a wearable device, it should be noted that the specific type of the terminal is not limited in the embodiment of the present disclosure.
  • the network side device may be a base station, for example, a macro station, an LTE eNB, a 5G NR NB, etc.; the network side device may also be a small station, such as a low power node (LPN: low power node), a pico, a femto, or the like, or a network.
  • the side device may be an access point (AP); the base station may also be a network node formed by a central unit (CU) and a plurality of transmission reception points (TRPs) that are managed and controlled. It should be noted that the specific type of the network side device is not limited in the embodiment of the present disclosure.
  • the receiving end 12 may also be a terminal or a network side device.
  • the sending end 11 may be a network side device, and the receiving end 12 may be a terminal, where the scenario is taken as an example in the figure; or in some scenarios, the sending end 11 may be a terminal, receiving The terminal 12 may be a network side device; or in some scenarios, the sending end 11 may be a terminal, and the receiving end 12 may also be a terminal, such as a device-to-device (D2D) communication scenario; or in some
  • the transmitting end 11 may be a network side device, and the receiving end 12 may also be a network side device, for example, a communication scenario between base stations.
  • D2D device-to-device
  • FIG. 2 is a flowchart of a method for processing an information data block according to an embodiment of the present disclosure. As shown in FIG. 2, the method includes the following steps:
  • the sending end performs pre-processing on the information data block to obtain a pre-processed data block.
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the information data block may be an information data block that needs to be sent in the transmit buffer. Alternatively, it may be a particularly small piece of information data, such as an information data block of a URLLC service, or may be other information data blocks requiring low latency, and high reliability services, or particularly small information generated under specific resources. Data blocks and more.
  • a particularly small information data block may be defined as an information data block whose length is less than a preset threshold value. For example, if an X is defined in advance, the information data block whose length is smaller than X is particularly small information data. Piece.
  • the information data block is not limited to a particularly small information data block.
  • the information data block may be an information data block having a length equal to the preset threshold, or a length ratio. Set the information data block with a large threshold.
  • the pre-processing may be pre-defined by the sender, pre-defined in the protocol, or pre-negotiated by the sender and the receiver, including but not limited to repeated operations, encoding operations, and padding operations.
  • channel coding After obtaining the preprocessed data block, channel coding may be performed, and then the signal obtained by channel coding may be transmitted. Since the pre-processing is performed before channel coding, the performance of channel coding can be improved.
  • the transmitting end indicates that the information data block of the signal passes the pre-processing before channel coding, so that the receiving end can correctly acquire the information data block from the received signal, thereby ensuring the transmission of the information data block. performance.
  • the receiving end decodes the signal sent by the transmitting end to obtain a pre-processed data block (or a decoding result), but performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information. data block.
  • the reverse operation of the pre-processing described above may be understood as the reverse operation of the pre-processing described above in order to obtain the above-mentioned information data block.
  • the inverse operation is decoding to obtain the information data block; or the preprocessing is a filling operation, and the reverse operation is to remove the padded portion to obtain the information data block; or
  • the above preprocessing is a repetitive operation, and the reverse operation is to remove the duplicated portion to obtain the above information data block.
  • the above pre-processing is performed on the information data block only before the channel coding, it is possible to solve the problem that the channel coding has poor performance when processing a particularly small information data block with a relatively low implementation complexity, thereby effectively implementing low latency. Highly reliable data transmission.
  • the sending end performs pre-processing on the information data block to obtain a pre-processed data block, including:
  • the transmitting end adds a CRC to the information data block, and performs the pre-processing on the added CRC and the information data block to obtain a pre-processed data block.
  • the foregoing pre-processing is performed on the CRC and the information data block together, that is, after the CRC is added, the foregoing pre-processing is performed, thereby reducing the receiving end from receiving.
  • the complexity of the above information data block and CRC is obtained in the signal. Because the receiving end performs the reverse operation on the signal sent by the transmitting end, the CRC and the information data block can be processed as a whole.
  • the receiving end decodes the signal sent by the transmitting end to obtain a pre-processed data block, and then performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block and the CRC;
  • the CRC performs verification; if the verification passes, the information data block is output.
  • the pre-processing of the information data block is not limited to the pre-processing of the CRC and the information data block, and the manner of pre-processing the data block is obtained, for example:
  • the above pre-processing may be performed only on the information data block to obtain a corresponding pre-processed data block, or in some embodiments, other check codes may be added to the school.
  • the verification and information data blocks are subjected to the above pre-processing to obtain corresponding pre-processed data blocks.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preset threshold may be preset by the sending end, predefined in the protocol, or determined by the sending end and the receiving end in advance.
  • the foregoing threshold value is 50 or 45 or 55, etc., and is not limited thereto.
  • the pre-processed data block may be the pre-processed data block in any of the embodiments provided in the embodiment of the present disclosure.
  • the pre-processed data block is a pre-processed data block that is preprocessed only by the information data block, or
  • the preprocessed data block is a preprocessed data block obtained by preprocessing only the CRC and the information data block.
  • the length of the information data block is less than the preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold, so that the information data block can be increased in length after the pre-processing.
  • the problem of poor performance in the case of particularly small information data blocks can be avoided, thereby effectively achieving low latency and high reliability data transmission.
  • the pre-processing in the embodiment of the present disclosure may be a processing manner that enables the length of the information data block to become greater than or equal to the preset threshold value.
  • the foregoing pre-processing includes at least one of the following:
  • the foregoing pre-processing includes at least one of the following: It may be understood that the foregoing pre-processing may include any one or more of a repeating operation, an encoding operation, and a filling operation.
  • the above preprocessing may be a repetitive operation, an encoding operation or a filling operation, or the preprocessing may be a repetitive operation and an encoding operation, or the preprocessing may be a repetitive operation, an encoding operation, and a filling operation, or the preprocessing may be encoding. Operation and filling operations, etc., are not listed here.
  • the base station configuration or the dynamic notification preset threshold value L, the base station configuration or the dynamic notification repetition number T can obtain the number of bits included in each repetition is L/T, when the number of bits of the information data block is less than L For /T, you can first fill, reach L/T, and then repeat T times to get the preprocessed data block.
  • the notification of the pre-processing operation here may be configured by the base station or dynamically notified to the terminal.
  • the above repeated operation may be a repeated operation on the information data block, or may be repeated operations on the information data block and the CRC, that is, after the CRC is added, the repeated operation is performed, so that the length of the preprocessed data block is greater than Or equal to the above preset threshold. Since the repeated operation is performed, the receiving end can directly remove the duplicate content to obtain the information data block, thereby reducing the complexity.
  • the information data block may be repeated, or the information data block and the CRC may be repeated L times to reach a certain length (greater than or equal to the preset threshold value), and then the preprocessed data block is obtained, and then the channel coding is performed, and then The signal is transmitted to the receiving end.
  • the foregoing encoding operation may be an encoding operation on the information data block, or may be an encoding operation on the information data block and the CRC, that is, the encoding operation is performed after adding the CRC, so that the length of the preprocessed data block is greater than or It is equal to the above preset threshold.
  • encoding an information data block, or encoding an information data block and a CRC channel such as a convolutional code using a code rate of M (which is the length of the coded block) / X (which is the predetermined threshold)
  • the encoding method such as the RM encoding method is not limited thereto.
  • the receiving end can directly decode the information data block to obtain the information data block, thereby reducing the complexity.
  • the information data block may be encoded, or the information data block and the CRC may be encoded once to reach a certain length (greater than or equal to the preset threshold value), and then the preprocessed data block is obtained, and then the channel coding is performed, and then The signal is transmitted to the receiving end.
  • the padding operation may be a padding operation on the information data block, or may be a padding operation on the information data block and the CRC, that is, after the CRC is added, the padding operation is performed, so that the length of the preprocessed data block is greater than or It is equal to the above preset threshold. For example, after adding the CRC, a plurality of zeros are filled, so that the length of the preprocessed data block is greater than or equal to the preset threshold. Since the filling operation is performed, the receiving end can remove the filling content to obtain the information data block, thereby reducing the complexity.
  • the information data block may be filled, or the information data block and the CRC are first padded with 0 to a certain length (greater than or equal to the preset threshold value), and then the preprocessed data block is obtained, and then the channel coding is performed, and then The receiving end transmits a signal.
  • the pre-processing may include multiple implementation manners, which may be predefined in the protocol, or the pre-processing manner pre-negotiated by the transmitting end and the receiving end, so that additional signaling may be avoided.
  • the sending end can also flexibly select the preprocessing mode according to the actual situation, and notify the receiving end by explicit or implicit manner to improve flexibility.
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • including the t CRC and the t information data blocks may be understood to include t repeated content, each of which is the CRC and the information data block.
  • the above-mentioned t data block and the CRC may be understood to include t repeated content and one CRC content, and each of the duplicate contents is the above information data block.
  • repeating the operation of the information data block, and adding the CRC may be, after performing the repeated operation on the information data block, adding a CRC to obtain a target bit including the CRC and the t information data blocks.
  • the k bits in the target bit may be repeated again to obtain a length greater than or equal to the preset threshold.
  • the k-bit is the first k-bit in the target bit, such as the first to the k-th bit.
  • the k-bit is not limited, for example, it may be the last k-bit or the like.
  • the foregoing t may be an integer equal to or greater than the preset threshold value divided by M, or 0, where M is equal to the length of the information data block, or the foregoing M is equal to the information data block and the CRC. The sum of the lengths.
  • the preset threshold X is equal to 50
  • the above M is equal to 16
  • the above t is equal to 3 (50 divided by 16 is rounded down to 3), that is, t is equal to 3, repeated 2 times, and 48 bits are obtained, and then The 2 bits are repeated again to obtain 50 bits.
  • the repeated workload can be reduced, because by repeating the k bits, the length is greater than or equal to the preset threshold.
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the explicit indication may be that the sending end sends a message to the receiving end, and in the message, the information data block is instructed to undergo the foregoing pre-processing before channel coding.
  • the above implicit indication may be that the additional information is not required to indicate that the information data block has undergone the foregoing pre-processing before channel coding, and is indicated by the signal in step 202 sent by the transmitting end to the receiving end to reduce the transmission overhead. .
  • the explicit indication includes:
  • the information data block is indicated by DCI to undergo the pre-processing before channel coding.
  • bits in the DCI may be implemented by the bits in the DCI to indicate that the information data block passes the pre-processing before channel coding. For example, a new bit field new field is added in the DCI, or some bits in the DCI are redefined, and these bits are used to indicate that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the pre-processing.
  • the identifier information of the pre-processing For example: indicating the number of the above pre-processing, for example: the number of repeated operations, encoding operations or padding operations, to flexibly use the pre-processing method, and to notify the receiving end to improve flexibility.
  • the above pre-processing can also be predefined, so that the identification information in the DCI is not required.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the receiving end can accurately perform the corresponding reverse operation to obtain the information data block.
  • the number of repetitions of the repeated operation is not limited by the above DCI in the embodiment of the present disclosure.
  • the number of repetitions of the repeated operation may be indicated by preprocessing the length of the data block, or may be agreed in advance.
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the length of the pre-processed data block is less than a given threshold value Y, it means that the information data block passes the pre-processing before channel coding.
  • the length of the preprocessed data block calculated according to the length of the encoded preprocessed data block and the specified coded rate is less than a given Y, the information data block is subjected to the preprocessing before channel coding.
  • the transmission overhead can be reduced.
  • the implicit indication further includes: indicating, by using a length of the pre-processed data block, a repetition quantity of the repeated operation.
  • a series of values Y1, Y2, Y3, ... are defined in advance.
  • the receiving end considers that it is repeated once, when the number of bits of the preprocessed data block is greater than Y2.
  • the receiving end considers that it is repeated twice.
  • the receiving end considers that it is repeated three times, and so on.
  • the number of repetitions can be indicated by the length of the pre-processed data block, there is no need to add an additional message to indicate to reduce the transmission overhead.
  • the number of repetitions may also be indicated by other implicit manners, for example, by the service type, or by transmitting resources to indicate the number of repetitions.
  • the number of padding, the padding value, and the coding rate may be implicitly indicated to the receiving end, or may be pre-defined in the protocol, or pre-negotiated between the transmitting end and the receiving end. Ok, there is no limit to this.
  • the transmitting end performs pre-processing on the information data block to obtain a pre-processed data block; performs channel coding on the pre-processed data block, and transmits a signal to the receiving end, where the signal is the pre-processing a signal obtained by the data block being encoded by the channel; wherein the transmitting end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the channel coding performance can be improved by the embodiment of the present disclosure compared to directly coding the information data block in the related art.
  • FIG. 3 is a flowchart of another method for processing an information data block according to an embodiment of the present disclosure. As shown in FIG. 3, the method includes the following steps:
  • the receiving end decodes the signal sent by the sending end to obtain a pre-processed data block, where the receiving end determines, by using the indication of the sending end, that the information data block of the signal is pre-processed before channel coding.
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block.
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block, including:
  • the receiving end performs the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block and the CRC;
  • the information data block is output.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the present embodiment is an implementation manner corresponding to the receiving end in the embodiment shown in FIG. 2.
  • the present embodiment refers to the related description of the embodiment shown in FIG. The examples will not be described again, and the same beneficial effects can be achieved.
  • FIG. 4 is a flowchart of another method for processing an information data block according to an embodiment of the present disclosure. As shown in FIG. 4, the method includes the following steps:
  • the size of the number of transmission resources available for the foregoing calculation may be a quantity that can be used for a Resource Element (RE).
  • RE Resource Element
  • MCS Modulation and Coding Scheme
  • QCI Channel Quality Indication
  • the length K of the maximum transmittable information data block may be equal to N ⁇ the number of bits in each modulation symbol ⁇ the code rate--16-bit CRC.
  • the 16-bit CRC is used for illustration, which is not limited thereto.
  • the sending end indicates to the receiving end that this is a particularly small information data block, and the indication manner is explicit or implicit.
  • the sending end sends a signal after performing other operations.
  • the receiving end receives the signal and performs corresponding operations.
  • the receiving end detects the indication information of the particularly small information data block, perform subsequent processing after the channel decoding.
  • the receiving end performs a reverse or some encoding or filling inverse operation.
  • the receiving end checks the CRC, and if it is correct, outputs the corresponding information data block.
  • the sender indicates to the receiving end that this is a particularly small information data block, the indication mode is explicit, adding several bits of new fields in the DCI, or redefining certain bits in the DCI, these bits indicating that this is One channel with special pre-processing, the number of special pre-processing methods; or, the indication mode is implicit, given a series of values Y1, Y2, Y3, ..., when the number of bits after channel coding is greater than Y1
  • the receiving end considers that the information block is repeated once. When the number of bits after channel coding is greater than Y2, the receiving end considers that the information block is repeated twice. When the number of bits after channel coding is greater than Y3, the receiving end considers the information block to be repeated three times. ,and many more;
  • the transmitting end sends a signal after performing other operations
  • the receiving end receives the signal and performs corresponding operations
  • the receiving end performs a reverse or some encoding or filling inverse operation
  • the receiving end checks the CRC, and if it is correct, outputs the corresponding information data block.
  • the transmitting end indicates to the receiving end that this is a particularly small information data block, wherein the encoding mode or the encoding code rate can be indicated in an explicit manner, or can be indicated in an implicit manner, for example, by length or service type. Indicating the coding mode or coding rate;
  • the transmitting end sends a signal after performing other operations
  • the receiving end receives the signal and performs corresponding operations
  • the receiving end performs a reverse or some encoding or filling inverse operation
  • the receiving end checks the CRC, and if it is correct, outputs the corresponding information data block.
  • the transmitting end indicates to the receiving end that this is a particularly small information data block, wherein the filling mode or the filling length can be indicated in an explicit manner, or can be indicated in an implicit manner, for example, implicitly by length or service type. Indicates the fill mode or fill length;
  • the transmitting end sends a signal after performing other operations
  • the receiving end receives the signal and performs corresponding operations
  • the receiving end performs a reverse or some encoding or filling inverse operation
  • the receiving end checks the CRC, and if it is correct, outputs the corresponding information data block.
  • FIG. 5 is a structural diagram of a transmitting end according to an embodiment of the present disclosure. As shown in FIG. 5, the transmitting end 500 includes:
  • the pre-processing module 501 is configured to perform pre-processing on the information data block to obtain a pre-processed data block.
  • the transmission module 502 is configured to perform channel coding on the preprocessed data block, and transmit a signal to the receiving end, where the signal is a signal obtained by the channel coding of the preprocessed data block;
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the pre-processing module 501 is configured to add a cyclic redundancy check code CRC to the information data block, and perform the pre-processing on the added CRC and the information data block to obtain a pre-processed data block.
  • CRC cyclic redundancy check code
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the sending end 500 may be the sending end of any embodiment of the method embodiment in the embodiment of the disclosure, and any implementation manner of the sending end in the method embodiment of the disclosure may be implemented by the present embodiment.
  • the above-mentioned transmitting end 500 is implemented in the example, and the same beneficial effects are achieved, and details are not described herein again.
  • FIG. 6 is a structural diagram of a receiving end according to an embodiment of the present disclosure. As shown in FIG. 6, the receiving end 600 includes:
  • the decoding module 601 is configured to: the receiving end decodes the signal sent by the transmitting end to obtain a pre-processed data block, where the receiving end determines, by using the indication of the sending end, that the information data block of the signal passes before channel coding. Pretreatment
  • the operation module 602 is configured to perform an inverse operation of the pre-processing on the pre-processed data block to obtain the information data block.
  • the operation module 602 is configured to perform the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block and the CRC; verify the CRC; and if the verification passes, output The information data block.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to zero.
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the receiving end 600 may be the receiving end of any embodiment of the method embodiment in the embodiment of the disclosure, and any implementation manner of the receiving end in the method embodiment of the disclosure may be implemented by the present embodiment.
  • the above-mentioned receiving end 600 in the example is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • FIG. 7 is a structural diagram of another transmitting end according to an embodiment of the present disclosure.
  • the terminal includes: a transceiver 710, a memory 720, a processor 700, and is stored in the memory 720. And a computer program operable on the processor, wherein:
  • the transceiver 710 is configured to perform pre-processing on the information data block to obtain a pre-processed data block.
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding
  • the processor 700 is configured to read a program in the memory and perform the following process:
  • the transceiver 710 is configured to perform channel coding on the preprocessed data block, and transmit a signal to the receiving end, where the signal is a signal obtained by the channel coding of the preprocessed data block;
  • the sending end indicates to the receiving end that the information data block of the signal passes the pre-processing before channel coding.
  • the transceiver 710 can be configured to receive and transmit data under the control of the processor 700.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 700 and various circuits of memory represented by memory 720.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 710 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.
  • the memory 720 is not limited to be only on the transmitting end, and the memory 720 and the processor 700 may be separated in different geographical locations.
  • the preprocessing the information data block to obtain the preprocessed data block includes:
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to one.
  • the sending end explicitly indicates or implicitly indicates that the information data block passes the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the foregoing sending end may be the sending end of any embodiment of the method embodiment in the embodiment of the present disclosure, and any implementation manner of the sending end in the method embodiment of the present disclosure may be used in this embodiment.
  • the above-mentioned transmitting end is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • FIG. 8 is a structural diagram of another receiving end according to an embodiment of the present disclosure.
  • the receiving end includes: a transceiver 810, a memory 820, a processor 800, and a memory 820. And a computer program operable on the processor, wherein:
  • the transceiver 810 is configured to decode a signal sent by the sending end to obtain a pre-processed data block, where the receiving end determines, by using the indication of the sending end, that the information data block of the signal is pre-processed before channel coding. deal with;
  • the processor 800 is configured to read a program in the memory and perform the following process:
  • the transceiver 810 can be configured to receive and transmit data under the control of the processor 800.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by memory 820.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 810 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.
  • the memory 820 is not limited to only the receiving end, and the memory 820 and the processor 800 may be separated in different geographical locations.
  • performing the inverse operation of the pre-processing on the pre-processed data block to obtain the information data block including:
  • the information data block is output.
  • the length of the information data block is less than a preset threshold, and the length of the pre-processed data block is greater than or equal to the preset threshold.
  • the preprocessing includes at least one of the following:
  • the repeating operation includes:
  • the k bits in the target bit are repeated again, wherein the k is equal to the preset threshold minus the target The length of the bit, the t being an integer greater than or equal to one.
  • the information data block of the signal is determined by the explicit indication or the implicit indication of the sending end to undergo the pre-processing before channel coding.
  • the explicit indication includes:
  • the implicit indication includes:
  • the length of the pre-processed data block indicates that the information data block passes the pre-processing before channel coding.
  • the DCI is further used to indicate the identifier information of the preprocessing.
  • the DCI is further used to indicate the number of repetitions of the repeated operation.
  • the implicit indication further includes indicating, by the length of the pre-processed data block, the number of repetitions of the repetitive operation.
  • the receiving end may be the receiving end of any embodiment of the method embodiment in the embodiment of the disclosure, and any implementation manner of the receiving end in the method embodiment of the disclosure may be used in this embodiment.
  • the above-mentioned receiving end is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer program is stored, and when the program is executed by the processor, the steps in the processing method of the information data block on the transmitting end side provided by the embodiment of the present disclosure are implemented, or When the program is executed by the processor, the steps in the processing method of the information data block on the receiving end side provided by the embodiment of the present disclosure are implemented.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform portions of the processing method of the information data block of various embodiments of the present disclosure. step.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention concerne, dans un mode de réalisation, un procédé de traitement d'un bloc de données d'informations, et un terminal de transmission. Le procédé comprend les étapes suivantes : utiliser un terminal de transmission pour effectuer un prétraitement sur un bloc de données d'informations pour obtenir un bloc de données prétraité; et effectuer un codage de canal sur le bloc de données prétraité, et transmettre un signal à un terminal de réception, le signal étant obtenu après que le codage de canal a été effectué sur le bloc de données prétraité, le terminal de transmission indiquant au terminal de réception que le bloc de données d'informations associé au signal a subi un prétraitement avant le codage de canal.
PCT/CN2019/072795 2018-03-06 2019-01-23 Procédé de traitement de bloc de données d'informations, et terminal de transmission WO2019169966A1 (fr)

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WO2015006947A1 (fr) * 2013-07-18 2015-01-22 华为技术有限公司 Procédé et dispositif de codage à faible taux binaire
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