WO2021139751A1 - Procédé de traitement de données, procédé de configuration, et dispositif de communication - Google Patents

Procédé de traitement de données, procédé de configuration, et dispositif de communication Download PDF

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Publication number
WO2021139751A1
WO2021139751A1 PCT/CN2021/070812 CN2021070812W WO2021139751A1 WO 2021139751 A1 WO2021139751 A1 WO 2021139751A1 CN 2021070812 W CN2021070812 W CN 2021070812W WO 2021139751 A1 WO2021139751 A1 WO 2021139751A1
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parameter
parameters
coding
sub
block
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PCT/CN2021/070812
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English (en)
Chinese (zh)
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文鸣
刘进华
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维沃移动通信有限公司
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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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter

Definitions

  • the embodiments of the present invention relate to the field of communication technology, and in particular, to a data processing method, a configuration method, and a communication device.
  • Packet Duplication also known as packet data aggregation protocol
  • PDCP Packet Data Convergence Protocol
  • Duplication Duplication
  • PDCP Packet two independent transmission paths are used to transmit the same PDCP packet
  • PDCP Packet two independent transmission paths are used to transmit the same PDCP packet
  • the embodiments of the present invention provide a data processing method, a configuration method, and a communication device to solve the problem of low spectrum utilization due to high redundancy in data transmission in the prior art.
  • the present invention is implemented as follows:
  • an embodiment of the present invention provides a data processing method applied to a first communication device, and the method includes:
  • N is a positive integer.
  • an embodiment of the present invention provides a data processing method applied to a second communication device, and the method includes:
  • each of the column vectors includes K elements, and K is the first The number of partitions of the data block, where M is a positive integer less than or equal to the number N of coded sub-blocks generated based on the first data block;
  • the first matrix is a row full-rank matrix
  • an embodiment of the present invention provides a configuration method, which is applied to a third communication device, and the method includes:
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, L numbers, where L is positive Integer
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of partitions of the data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • an embodiment of the present invention also provides a communication device, the communication device is a first communication device, and the communication device includes:
  • the first obtaining module is used to obtain network coding parameters
  • the first generating module is configured to generate N coding sub-blocks of the first data block through the target layer according to the network coding parameters, where N is a positive integer;
  • the first sending module is configured to send the N coded sub-blocks to the second communication device.
  • an embodiment of the present invention also provides a communication device, the communication device is a second communication device, and the communication device includes:
  • the second obtaining module is configured to obtain M column vectors corresponding to the M coding sub-blocks when the M coding sub-blocks corresponding to the first data block are received, and each column vector includes K elements , K is the number of divisions of the first data block, and M is a positive integer less than or equal to the number N of coded sub-blocks generated based on the first data block;
  • a second generation module configured to generate a first matrix, the first matrix including the M column vectors
  • the restoration module is configured to restore the first data block according to the first matrix and the M coded sub-blocks when the first matrix is a row full-rank matrix.
  • an embodiment of the present invention also provides a communication device, the communication device is a third communication device, and the communication device includes:
  • the second sending module is configured to send configuration information for configuring network coding parameters.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, L numbers, L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of partitions of the data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • an embodiment of the present invention also provides a communication device that includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor, and the computer program is
  • the processor implements the steps of the data processing method described in the first aspect above, or the steps of the data processing method described in the second aspect above, or the steps of the configuration method described in the third aspect when executed by the processor.
  • an embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the data processing as described in the first aspect is realized.
  • the first communication device may generate N coding sub-blocks of the first data block through the target layer according to the acquired network coding parameters, and send the N coding sub-blocks to the second communication device, N is a positive integer.
  • the second communication device can obtain the first data block based on the received coding sub-block. It can be seen that the embodiment of the present invention adopts network coding to realize the transmission of the first data block from the first communication device to the second communication device, thereby reducing the redundancy of data transmission while ensuring the reliability of data transmission, and thereby Can improve spectrum utilization.
  • Figure 1 is one of the flowcharts of a data processing method provided by an embodiment of the present invention
  • FIG. 3 is one of the flowcharts of the configuration method provided by the embodiment of the present invention.
  • FIG. 5 is the third flowchart of the data processing method provided by the embodiment of the present invention.
  • FIG. 6 is the fourth flow chart of the data processing method provided by the embodiment of the present invention.
  • Figure 7 is one of the schematic diagrams of a communication system provided by an embodiment of the present invention.
  • FIG. 8 is one of the schematic diagrams of the header of the coding sub-block provided by an embodiment of the present invention.
  • Fig. 9 is a second schematic diagram of a communication system provided by an embodiment of the present invention.
  • FIG. 10 is the second schematic diagram of the header of a coding sub-block provided by an embodiment of the present invention.
  • FIG. 11 is a third schematic diagram of a communication system provided by an embodiment of the present invention.
  • FIG. 12 is the third schematic diagram of the header of a coding sub-block provided by an embodiment of the present invention.
  • Figure 13 is one of the structural diagrams of a communication device provided by an embodiment of the present invention.
  • FIG. 14 is a second structural diagram of a communication device provided by an embodiment of the present invention.
  • FIG. 15 is the third structural diagram of a communication device provided by an embodiment of the present invention.
  • FIG. 16 is the fourth structural diagram of the communication device provided by the embodiment of the present invention.
  • first”, “second”, etc. in the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.
  • the terms “including” and “having” and any variations of them are intended to cover non-exclusive inclusions.
  • a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.
  • the use of "and/or" in the present invention means at least one of the connected objects, such as A and/or B and/or C, which means that it includes A alone, B alone, C alone, and both A and B exist, Both B and C exist, A and C exist, and A, B, and C all exist in 7 cases.
  • the network coding process may include the following steps:
  • Step 1 The originator divides the original data block.
  • the original data block can be evenly divided into K original data sub-blocks (Source Data Segment).
  • the original data block can be expressed as:
  • p k represents the Kth original data sub-block obtained by dividing the original data block P.
  • Each element in p k belongs to GF(2), GF is Galois Field, and GF(2) is the simplest finite field.
  • each element in p k only takes a value between 0 and 1, and the result of the operation is only 0 and 1, which is equivalent to only exclusive OR and multiplication.
  • Step 2 The sender generates a coding matrix.
  • the coding matrix is as follows:
  • the coding matrix M includes elements of K rows and N columns, where K is the number of original data sub-blocks obtained by dividing the original data block into equal parts, and N is the number of coded sub-blocks obtained by encoding K original data sub-blocks. Number. It should be understood that i in the coding matrix M is a positive integer less than or equal to K, and j is a positive integer less than or equal to N. In addition, a column of elements in the coding matrix M can be referred to as a column vector in the coding matrix M.
  • each column vector in the coding matrix M includes K elements, and each element in the coding matrix only takes a value between 0 and 1, therefore, the value of the degree of freedom of each column vector in the coding matrix M is greater than or Equal to 0, less than or equal to K. It should be understood that the values of the degrees of freedom of different columns may be the same or different.
  • the degree of freedom d obeys a specific distribution ⁇ (d).
  • c is a suitable constant
  • ⁇ is the allowable failure probability
  • the j-th column vector in the coding matrix M (that is, the j-th column vector from left to right in the coding matrix M) can be generated in the following way:
  • the value of K of the coding matrix M is 3 and the value of N is 4; the value of the degree of freedom of the first column vector of the coding matrix M is 1, and the value of the degree of freedom of the second column vector is 1.
  • the value of the degree of freedom of the third column of vectors is 2, and the value of the degree of freedom of the fourth column of vectors is 2.
  • the first element of the first column vector from top to bottom takes the value 1
  • the second and third elements of the third column vector from top to bottom take the value of 1
  • the fourth column vector from the top is 1.
  • Step 3 The sender encodes the original data block P to generate N coded sub-blocks.
  • c N is the N-th coded sub-block among the N coded sub-blocks. It can be known from the above formula that c N is determined based on the original data block P and the Nth column vector in the coding matrix M. Therefore, it can be considered that the Nth coding sub-block has a corresponding relationship with the Nth column vector in the coding matrix M. It can be seen that each coding sub-block corresponds to a column vector in the coding matrix M.
  • the column vector corresponding to the coding sub-block may also be referred to as the number of the original data sub-block required to generate the coding sub-block. Since the column vectors corresponding to different coding sub-blocks are different column vectors of the coding matrix M, the numbers of the original data sub-blocks required to generate different coding sub-blocks are different.
  • Step 4 The receiving end decodes the received coded sub-block and restores the original data block.
  • Both the transmitting and receiving ends need to have the original data sub-block number (that is, the j-th column vector in the coding matrix M corresponding to the j-th coding sub-block) required to generate the coding sub-block.
  • the receiving end combines the column vectors corresponding to the received coding sub-blocks into a matrix H.
  • the obtained original data sub-blocks are combined in order, that is, the original data block P is completely restored.
  • the required redundancy varies in different situations, but in general, the required redundancy is significantly less than 100%.
  • the receiving end has no prejudice to the received coding sub-block (it is not required to receive a specific coding sub-block), only the matrix composed of the column vector corresponding to the received coding sub-block is in line with the full row Under the condition of the rank, the coded sub-block can be successfully decoded.
  • the embodiment of the present invention adopts a network coding manner to realize the transmission of the data block from the first communication device to the second communication device.
  • the embodiment of the present invention includes a data processing method applied to a first communication device, a data processing method applied to a second communication device, and a configuration method applied to a third communication device.
  • the first communication device can send the data block in the manner of network coding through the data processing method applied to the first communication device.
  • the second communication device can recover the database sent by the first communication device in a network coding manner.
  • the third communication device can configure the network coding parameters for the first communication device and the second communication device.
  • the communication device may be a network-side device or a terminal (also called User Equipment (UE)).
  • UE User Equipment
  • the embodiments of the present invention may include the following application scenarios.
  • Both the first communication device and the second communication device may be UEs.
  • the data block can be transmitted between UEs in a network coding manner.
  • One of the first communication device and the second communication device is a UE, and the other communication device may be a base station.
  • the data block can be transmitted between the UE and the base station in a network coding manner.
  • One of the first communication device and the second communication device is a UE, and the other communication device may be an intermediate point between the UE and the base station.
  • the data block can be transmitted between the UE and the intermediate point in a network coding manner.
  • One of the first communication device and the second communication device is a base station, and the other communication device may be an intermediate point between the UE and the base station. That is to say, the data block can be transmitted between the base station and the intermediate point by means of network coding.
  • Both the first communication device and the second communication device can be intermediate points between the UE and the base station.
  • data blocks can be transmitted between intermediate points by means of network coding.
  • the UE can be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (PDA), a mobile Internet device (Mobile Internet Device, MID), Wearable device (Wearable Device) or vehicle-mounted device, etc.
  • the intermediate point between the UE and the base station may be a relay or an Integrated Access Backhaul (IAB) node, etc.
  • the third communication device in the embodiment of the present invention may be a base station, an IAB node, a relay, or an access point, etc.
  • FIG. 1 is one of the flowcharts of the data processing method provided by the embodiment of the present invention.
  • the data processing method shown in FIG. 1 can be applied to the first communication device.
  • the data processing method may include the following steps:
  • Step 101 Obtain network coding parameters.
  • the acquiring network coding parameters includes: acquiring the network coding parameters according to at least one of the protocol agreement and the configuration information sent by the third communication device. That is to say, the network coding parameters may be agreed by the protocol and/or configured by the third communication device.
  • the network coding parameters may include one or at least two parameters. It should be understood that in the case where the number of parameters included in the network coding parameter is different, the method of obtaining the network coding parameter may be different, and the specific description is as follows:
  • the network coding parameter may be predetermined by a protocol or configured by a third communication device.
  • the network coding parameters include two or more parameters, the following implementation manners may be included:
  • the network coding parameters include a first part of parameters and a second part of parameters, the first part of parameters is predetermined by a protocol, and the second part of parameters is configured by a third communication device.
  • the specific expression forms of the first part of the parameters and the second part of the parameters may be determined according to actual conditions, which are not limited in the embodiment of the present invention.
  • the network coding parameter corresponds to a target object
  • the target object may correspond to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group. That is, the network coding parameter is the network coding parameter of the target object, and the network coding parameter serves the target object.
  • the first communication device may perform network coding processing based on the network coding parameters corresponding to the target object.
  • Step 102 Generate N coded sub-blocks of the first data block through the target layer according to the network coding parameters, where N is a positive integer.
  • N 1
  • the target layer does not perform network coding on the first data block.
  • N 1
  • the target layer performs network coding on the first data block. The following mainly describes the case where N is greater than 1.
  • the target layer of the first communication device may first generate the first data block P and the coding matrix M according to the network coding parameters, and then use the first data block P and the coding matrix M to generate the first data block N coding sub-blocks.
  • Step 103 Send the N coded sub-blocks to the second communication device.
  • the first communication device may generate N coding sub-blocks of the first data block through the target layer according to the acquired network coding parameters, and send the N coding sub-blocks to the second communication device , N is a positive integer.
  • the second communication device can obtain the first data block based on the received coding sub-block.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, L numbers, and L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the first parameter may be used to determine the number of divisions of the first data block, that is, the value of K.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the first communication device may directly determine the value of the first parameter as the division of the first data block Number of copies. Exemplarily, assuming that the value of the first parameter is 5, the number of divisions of the first data block is 5, and the first communication device may equally divide the first data block into 5 data sub-blocks.
  • the first communication device may select any positive integer less than or equal to the value of the first parameter as the first data block The number of splits. Exemplarily, assuming that the value of the first parameter is 5, the first communication device may determine that the number of divisions of the first data block is 3, and divide the first data block into 3 data sub-blocks on average.
  • the second parameter can be used to determine the value of N.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the first communication device may directly determine the value of the second parameter as the value of N .
  • the value of the second parameter is 10.
  • the first communication device can generate 10 coded sub-blocks, that is, the first data block The block corresponds to 10 coded sub-blocks.
  • the first communication device may select any positive integer less than or equal to the value of the second parameter as the value of N value. Exemplarily, assuming that the value of the second parameter is 10, the first communication device may determine that the value of N is 8. At this time, for the first data block, the first communication device may generate 8 coding sub-blocks, that is In other words, the first data block corresponds to 8 coding sub-blocks.
  • the third parameter can be used to determine the distribution of degrees of freedom.
  • the distribution of degrees of freedom d is related to K, c, and ⁇ .
  • the value of K can be determined by the first parameter, therefore, the third parameter can be used to determine c and ⁇ .
  • the pseudo-random code seed can be used to determine the column vector information corresponding to the coded sub-block.
  • the communication device determines the column vector information corresponding to the coding sub-block according to the pseudo-random code seed, it also needs to combine the distribution of the degrees of freedom d. That is, the pseudo-random code seed determines the column vector information corresponding to the coded sub-block based on the distribution of the degrees of freedom d.
  • the column vector information may include the degree of freedom of the column vector and the number of the element whose value is 1 in the column vector.
  • the pseudo-random code seed may include a first pseudo-random code seed and a second pseudo-random code seed, wherein the first pseudo-random code seed is used to generate a column vector corresponding to the coding sub-block. Degree of freedom, the second random code seed is used to generate the number of the element whose value is 1 in the column vector corresponding to the coding sub-block.
  • the first pseudorandom code seed and the second pseudorandom code seed can be regarded as different types.
  • the pseudo-random code seed can be regarded as different types.
  • different types of pseudo-random code seeds can have different manifestations.
  • the first pseudo-random code seed can be represented as Arabic numerals
  • the second pseudo-random code seed can be represented as English letters.
  • the communication device can distinguish between different types of pseudo-random code seeds.
  • the foregoing manner is only an example. In practical applications, different types of pseudo-random code seeds may also be distinguished in other manners, which is not limited in the embodiment of the present invention.
  • the first pseudo-random code seed can generate N values, each value represents the value of the degree of freedom of a column vector;
  • the second pseudo-random code seed can generate N groups of values, each group of values includes V values, the value of V is equal to the number of elements with the value of 1 in the column vector, and each value in the V values represents the number of the element with the value of 1 in the column vector.
  • the value sequence generated by the first pseudo-random code seed is 2; 3; 5; 5; 1; 2, the second pseudo-random code
  • the value sequence generated by the seed is: 1, 2; 1, 3, 5; 1, 2, 3, 4, 5; 1, 2, 3, 4, 5; 3; 4, 5.
  • the first communication device may determine, based on the first pseudorandom code seed, that the value of N is 6, the coding matrix includes 6 column vectors, and the degree of freedom of the first column vector is 2, and the degree of freedom of the second column vector is 2. Is 3, the degree of freedom of the third column vector is 5, the degree of freedom of the fourth column vector is 5, the degree of freedom of the fifth column vector is 1, and the degree of freedom of the sixth column vector is 2.
  • the second communication device may determine, based on the second pseudo-random code seed, that the values of the first element and the second element in the first column vector are 1, and the remaining elements are 0; the first element in the first column vector The value of one element, the third element, and the fifth element is 1, and the value of the remaining elements is 0; the value of all elements in the third column vector and the fourth column vector is 1; the value of the fifth column vector is The value of the third element of is 1 and the value of other elements are 0; the value of the fourth element and the fifth element of the sixth column vector is 1, and the value of the remaining elements is 0.
  • the first communication device can generate a coding matrix M:
  • the first communication device generates 6 coding sub-blocks based on the first data block:
  • the value sequence that can be obtained based on the first pseudo-random code seed is 2; 3; 5; 5; 1.
  • the value sequence that can be obtained based on the first pseudo-random code seed is 2; 3; 1; 2; 1.
  • the first pseudo-random code seed can be used to determine the degree of freedom corresponding to the coded sub-block.
  • the generated N sets of values can be different.
  • the column vector information may be a column vector.
  • the pseudo-random code seed can be used to generate N column vectors.
  • the first communication device can generate an encoding matrix M based on the generated N column vectors; in addition, the first communication device can determine the value of K based on the number of elements included in any column vector of the generated N column vectors, Generate the first data block P. After that, N coded sub-blocks of the first data block are generated.
  • the second communication device can autonomously determine the column vector corresponding to the coding sub-block based on the pseudo-random code seed, which is compared with the second communication device based on the pseudo-random code seed.
  • the instruction of the first communication device determines the column vector corresponding to the coding sub-block, which can reduce the signaling overhead between the first communication device and the second communication device.
  • the number is the number of the network coding parameter combination, and can be used to indicate the network coding parameter combination.
  • the network coding parameter combination may include at least two of the following: a first parameter, a second parameter, and a third parameter.
  • the first communication device may store P network coding parameter combinations.
  • the first communication device may determine the L network coding parameter combinations in the P network coding parameter combinations based on the L numbers.
  • the network coding parameter combination includes the first parameter, the second parameter, and the third parameter.
  • the first communication device can determine the values of K, N, c, and ⁇ .
  • the first communication device can autonomously select the target number from the L numbers, and then determine the values of K, N, c, and ⁇ according to the target encoding parameter combination corresponding to the target number.
  • Obtaining method 1 Obtain the value of K according to the first parameter.
  • the second acquisition method is to acquire the value of K according to the number of the network coding parameter combination, and the network coding parameter combination includes the first parameter.
  • N can be obtained in any of the following ways:
  • the third acquisition method is to acquire the value of N according to the second parameter.
  • the fourth method of obtaining is to obtain the value of N according to the number of the network coding parameter combination, and the network coding parameter combination includes the second parameter.
  • the purpose of acquiring the network coding parameters by the first communication device is to generate a first data block P and generate a coding matrix M, and then generate first data according to the generated first data block P and coding matrix M. N coded sub-blocks of the block.
  • the first communication device can generate the first data block P after obtaining the value of K.
  • the coding matrix M it can be generated according to K, N, c, and ⁇ .
  • the network coding parameters in any of the following manifestations can enable the first communication device to generate the first data block P and the coding matrix M, and then generate the first data block P and the coding matrix M according to the generated first data block P and the coding matrix M.
  • the network coding parameters include L first parameters, L second parameters, and third parameters.
  • the first communication device may select a first parameter from the L first parameters, and then determine the value of K based on the first parameter; A second parameter is selected for the L second parameters, and then the value of N is determined based on the second parameter.
  • the L second parameters correspond to the L first parameters.
  • the L second parameters and the L first parameters have a one-to-one correspondence.
  • the first communication device can only select the first parameter or the second parameter, and then can determine the other one of the first parameter and the second parameter based on the above-mentioned corresponding relationship, thereby simplifying the selection operation of the first communication device .
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the Q third parameters correspond to the L first parameters
  • the first communication device may determine the third parameter based on the determined first parameter.
  • the Q third parameters correspond to the L second parameters
  • the Q third parameters can also correspond to two or more of the Q third parameters; if the value of Q is equal to the value of L, then one of the L second parameters corresponds to the Q third parameter.
  • the first communication device may determine the third parameter based on the determined second parameter.
  • Expression form 2 The network coding parameters include L numbers.
  • the network coding parameter may only include L numbers.
  • the network coding parameter combination includes the first parameter and the third parameter
  • the network coding parameter may further include L second parameters.
  • the network coding parameter combination includes the first parameter and the second parameter
  • the network coding parameter may further include a third parameter.
  • the network coding parameter combination includes the second parameter and the third parameter
  • the network coding parameter may further include L first parameters.
  • the first communication device may first select one of the L parameters, and then generate N coding sub-blocks based on the selected parameters.
  • the value of N determined by the first communication device may be greater than the value of K, so as to improve the reliability of data block transmission.
  • the network coding parameters include a first parameter and a second parameter
  • the first parameter is the maximum divisible number of the first data block
  • the second parameter is the corresponding value of the first data block
  • the values of the first parameter and the second parameter are both 10.
  • the value of K determined by the first communication device may be 3, and the value of N may be 6.
  • the above-mentioned network coding parameters are only examples. Any data block that can cause the first communication device to generate the first data block P and the coding matrix M, and then generate the first data block according to the generated first data block P and the coding matrix M
  • the network coding parameters of the N coding sub-blocks all fall into the protection scope of the embodiment of the present invention.
  • the first communication device may first determine the distribution of the degrees of freedom d according to K, c, and ⁇ , and then may generate the coding matrix M according to the distribution of the degrees of freedom d, K and N.
  • the first communication device can autonomously determine the degrees of freedom corresponding to the N column vectors in the coding matrix according to the distribution of the degrees of freedom d, and the number of the element whose value is 1 in each of the N column vectors. .
  • the first communication device can generate the degrees of freedom of N column vectors based on the pseudo-random code seed, and the values of the elements of the N column vectors whose value is 1 in each column vector. Numbering.
  • the network coding parameters of the above-mentioned expression form 1 and expression form 2 may also include a pseudo-random code seed.
  • the first communication device since the degrees of freedom corresponding to the N column vectors in the coding matrix, and the number of the element whose value is 1 in each column vector of the N column vectors are determined independently by the first communication device Therefore, in order for the second communication device to decode successfully, the first communication device should instruct the second communication device to determine the degree of freedom of the N column vectors in the coding matrix determined by it, and the value of each column vector in the N column vectors The number of the element that is 1.
  • the second communication The device can determine the degrees of freedom corresponding to each of the N column vectors in the coding matrix by obtaining the pseudo-random code seed, and the number of the element whose value is 1 in each column vector of the N column vectors, without the instruction of the first communication device. Reduce the signaling overhead between the first communication device and the second communication device.
  • the header of the coding sub-block will be described below.
  • the header of the first coding sub-block in the N coding sub-blocks includes a first set field, and the first set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the header of the first coding sub-block in the N coding sub-blocks includes a second set field, and the second set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate the target number among the L numbers
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the first field is used to indicate the number of divisions of the first data block, that is, the value of K. It can be seen that the first communication device can explicitly indicate the value of K by carrying the first field in the header of the coding sub-block.
  • the second field is used to indicate the number of the first data block.
  • the first communication device may send two or more data blocks to the second communication device. In this case, the first communication device sends coded sub-blocks with different data blocks. Therefore, in order to facilitate the second communication device to accurately identify the coding sub-block corresponding to the same data block, the first communication device may carry a second field in the header of each coding sub-block to indicate the number of the data block corresponding to the coding sub-block .
  • the third field is used to indicate the number of the first coding sub-block.
  • the value of N is generally greater than 1. It can be seen from the foregoing that the column vectors in the coding matrix corresponding to different coding sub-blocks are different. Therefore, in order to facilitate the second communication device to accurately determine the column vector corresponding to each coding sub-block, the first communication device may carry a third field in the header of each coding sub-block to indicate the number of the coding sub-block.
  • the fourth field is used to indicate column vector information corresponding to the first coding sub-block. Specifically, the fourth field may be used to indicate the degree of freedom of the column vector corresponding to the first coding sub-block, and the number of the element in the column vector whose value is 1. In this way, the second communication device can obtain the column vector corresponding to the first coding sub-block based on the fourth domain and the value of K.
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block.
  • the protocol may agree on the correspondence between the fourth parameter and K. For example, if the value of the fourth parameter is 1, the value of K corresponding to the fourth parameter is 4; If the value is 2, the value of K corresponding to the fourth parameter is 5. In this way, the second communication device can determine the value of K based on the fourth parameter indicated by the sixth domain and the foregoing corresponding relationship.
  • the seventh field is used to indicate a target number in the L numbers, and the target number indicates a network coding parameter combination in P network coding parameter combinations. It should be understood that the target network coding parameter combination corresponding to the target number is a parameter used by the first communication device to generate the N coding sub-blocks. In this way, the second communication device can determine the value of K based on the target number indicated by the seventh field.
  • the first, sixth, and seventh fields can all be used to determine the value of K. It can be seen that the first communication device can carry the first and sixth fields in the header of the coding sub-block. Or the seventh field, which explicitly indicates the value of K.
  • the first communication device may also implicitly indicate the value of K.
  • the size of the first coding sub-block in the N coding sub-blocks corresponds to any one of the following:
  • the value of K is different, and the size of the coding sub-block is different.
  • the value of K may be negatively related to the size of the coding sub-block, that is, the smaller the value of K, the larger the size of the coding sub-block, and the smaller it is anyway.
  • the sizes of different coded sub-blocks corresponding to the same data block may be the same. Therefore, the first communication device may determine the value of K corresponding to the data block based on the size of any coding sub-block corresponding to the same data block.
  • the header of the network coding layer or the sub-label of the network coding sublayer may explicitly indicate the parameters used, or the network coding layer parameters may be implicitly indicated.
  • the first coding sub-block may be understood as any coding sub-block of the N coding sub-blocks.
  • the headers of different coded sub-blocks in the N coded sub-blocks may be the same or different.
  • one coding sub-block corresponding to the data block may carry the first domain to indicate the K value, and other coding sub-blocks corresponding to the data block may not carry the first domain.
  • the header of the coding sub-block may include the fourth field. If the second communication device determines to obtain the column vector corresponding to the received coding sub-block through the foregoing implementation manner 2, the header of the coding sub-block may not include the fourth field, so that the first communication device and the second communication can be reduced. Signaling overhead between devices.
  • the first communication device can perform network coding on the data block through the target layer.
  • the target layer may be:
  • the first layer in the Radio Access Network (RAN) protocol stack or,
  • the first layer can be regarded as an existing layer in the RAN protocol stack, such as the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the backhaul from The Backhaul Adaptation Protocol (BAP) layer, the Medium Access Control (MAC) layer, and the physical (PHY) layer;
  • the second layer can be regarded as a newly added layer in the RAN protocol stack.
  • the following describes the cases where the target layer is the first layer and the target layer is the second layer.
  • Case 1 The target layer is the first layer.
  • the first layer includes a network coding sublayer, a first target indication field is generated by the network coding sublayer, and the first target set field is the first set field or the second set field .
  • the first communication device performs network coding on the data block through the network coding sublayer of the first layer to generate coded sub-blocks.
  • the header of the first coding sub-block may further include a third aggregation field, and the third aggregation field is divided by the network coding from the target layer.
  • Other sub-layers other than sub-layers are generated.
  • the header of the coded sub-block includes the first target set field and the third set field.
  • the first target set field can be regarded as the first sub-header of the coded sub-block
  • the third set field can be regarded as the coded sub-block.
  • the third set field is generated by other sublayers in the first layer except the network coding sublayer.
  • the second subheader can be regarded as the header of the original first layer. For example, if the first layer is PDCP layer, the second sub-header can be regarded as the header of the PDCP layer.
  • the third collection domain is located before the first target collection domain, or the third collection domain is located after the first target collection domain.
  • the first layer first performs network coding processing to generate the first target collection domain, and then performs the existing processing of the first layer to generate the third collection domain .
  • the first layer first performs the existing processing of the first layer to generate the third collection domain, and then performs network coding processing to generate the first target collection domain .
  • Case 2 The target layer is the second layer.
  • the target layer is an independent layer. Therefore, the header of the coding sub-block may only include the first target set field.
  • the target layer can be set between any two existing layers of the RAN protocol stack.
  • the network coding layer satisfies any one of the following:
  • the network coding layer is set between the PDCP layer and the radio link control RLC layer;
  • the network coding layer is set between the PDCP layer and the backhaul adaptive protocol BAP layer.
  • FIG. 2 is the second flowchart of the data processing method provided by the embodiment of the present invention.
  • the data processing method shown in FIG. 2 can be applied to the second communication device.
  • the data processing method of this embodiment includes the following steps:
  • Step 201 In the case of receiving M coded sub-blocks corresponding to the first data block, obtain M column vectors corresponding to the M coded sub-blocks, each of the column vectors includes K elements, and K is all The number of divisions of the first data block, M is a positive integer less than or equal to the number N of coded sub-blocks generated based on the first data block.
  • Step 202 Generate a first matrix, where the first matrix includes the M column vectors.
  • Step 203 In a case where the first matrix is a row full-rank matrix, restore the first data block according to the first matrix and the M coded sub-blocks.
  • the number of received coding sub-blocks of the first data block may be greater than or equal to M.
  • the second communication device may select M coded sub-blocks from the received coded sub-blocks, and determine the corresponding code sub-blocks of the M coded sub-blocks. Whether the matrix generated by the M column vectors is a row-full-rank matrix, until the coding sub-blocks that make the row of the first matrix full-rank are found.
  • the restoring the first data block according to the first matrix and the M coding sub-blocks may specifically include: obtaining the first data according to the first matrix and the M coding sub-blocks The data sub-blocks corresponding to the blocks are then combined in order to obtain the first data block.
  • the second communication device may perform the above steps through the target layer.
  • the target layer can refer to the foregoing description, which will not be repeated here.
  • the obtaining M column vectors corresponding to the M coding sub-blocks includes:
  • Acquire M column vectors corresponding to the M coded sub-blocks according to the first information includes any one of the following:
  • a pseudo-random code seed in the network coding parameters where the pseudo-random code seed is used to determine the column vector information corresponding to the coding sub-block;
  • the fourth field in the header of each coding sub-block in the M coding sub-blocks, and the fourth field in the header of each coding sub-block is used to indicate column vector information corresponding to the coding sub-block.
  • the network coding parameters further include at least one of the following: L first parameters, L second parameters, third parameters, and L numbers, where L is a positive integer;
  • each network coding parameter combination includes at least two of the following: One parameter, second parameter, and third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the network coding parameter is determined according to at least one of a protocol agreement and configuration information sent by the third communication device.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fourth aggregation field, and the fourth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fifth aggregation field, and the fifth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate a target number, where the target number indicates a target network coding parameter combination in P network coding parameter combinations, and P is a positive integer;
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block further includes a sixth set field, and the first The six set fields are generated by other sublayers in the first layer except the network coding sublayer;
  • the second target collection domain is the fourth collection domain or the fifth collection domain.
  • the sixth collection domain is located before the second target collection domain, or the third collection domain is located after the second target collection domain.
  • the second communication device may decode and obtain the first data block based on the received coding sub-block. It can be seen that the embodiment of the present invention adopts network coding to realize the transmission of the first data block from the first communication device to the second communication device, thereby reducing the redundancy of data transmission while ensuring the reliability of data transmission, and thereby Can improve spectrum utilization.
  • this embodiment serves as an embodiment of the second communication device corresponding to the method embodiment corresponding to FIG. 1. Therefore, you can refer to the relevant description in the method embodiment corresponding to FIG. 1, and the same beneficial effects can be achieved. . In order to avoid repeating the description, it will not be repeated here.
  • FIG. 3 is one of the flowcharts of the configuration method provided by the embodiment of the present invention.
  • the configuration method shown in FIG. 3 can be applied to the third communication device.
  • the configuration method of this embodiment includes the following steps:
  • Step 301 Send configuration information for configuring network coding parameters, where the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, and L numbers, L is a positive integer.
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of partitions of the data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of divisions of the first data block, and the maximum number of divisions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the third communication device can configure network coding parameters by sending configuration information, so that the first communication device and the second communication device can perform network coding and decoding on the data block based on the network coding parameters, and further Under the condition of ensuring the reliability of data transmission, the redundancy of data transmission is reduced, and the spectrum utilization rate can be improved.
  • this embodiment is an embodiment of the third communication device corresponding to the method embodiment corresponding to FIG. 1. Therefore, you can refer to the related description in the method embodiment corresponding to FIG. 1, and the same beneficial effects can be achieved. . In order to avoid repeating the description, it will not be repeated here.
  • Network Coding can be a completely new protocol layer or an extended sublayer of a certain layer in the existing protocol stack.
  • the present invention designs network coding for protocol design and related signaling design when RAN data transmission, including "network coding parameter configuration" and "NWC header design".
  • the configuration can be configured according to communication equipment or according to communication equipment.
  • the MAC entity, cell group, or LCH/LCG can be configured to configure a consistent network code, or it can be configured with multiple network codes to provide flexibility to choose according to the situation.
  • Figure 4 shows the flow chart of the network control unit that performs network coding configuration according to LCH
  • Figure 5 shows the flow chart of the origination of network coding configuration according to LCH
  • Figure 6 shows the network coding configuration according to LCH The flow chart of the configuration of the receipt.
  • Figure 4 includes the following steps:
  • Step 401 The network control unit configures the originating LCH network coding parameters.
  • Step 402 The network control unit configures the receiving end LCH network coding parameters.
  • the sending end LCH network coding parameters and the receiving end LCH network coding parameters configured by the network control unit may be the same or different.
  • Figure 5 includes the following steps:
  • Step 501 Receive an LCH network coding parameter of the communication device.
  • Step 502 Determine the header format of the coded sub-block.
  • Step 503 Perform network coding processing on the data block of the LCH according to the network coding parameter of the LCH and the header format of the coding sub-block to generate a coding sub-block.
  • Step 504 Send the coded sub-block generated by the LCH.
  • Figure 6 includes the following steps:
  • Step 601 Receive an LCH network coding parameter of the communication device.
  • Step 602 Determine the header format of the coded sub-block.
  • Step 603 Receive the coding sub-block of the LCH.
  • Step 604 According to the network coding parameters of the LCH and the header format of the coding sub-block, decode the received coding sub-block of the LCH, and restore the data block.
  • the receiving end may directly decode the received encoding sub-block of the LCH according to the header format of the encoding sub-block to restore the data block. Therefore, in these embodiments, the network control unit may not perform step 401, and the receiving end may not perform step 604.
  • the header format of the coding sub-block may be pre-arranged by the protocol. Specifically, the header format of the coding sub-block may include at least one of the aforementioned first to seventh fields.
  • the NWC layer is newly added between any two layers in the existing RAN protocol stack.
  • the configuration of network encoding includes one or more of the following parameters:
  • the "coding matrix parameter” is used to generate the coding matrix, including at least one of the following parameters: protocol definition or network (pre-)configured degree of freedom d related parameters, and locally generated distribution of d according to the related parameters;
  • Protocol definition or network (pre-)configured pseudo-random code seed (equipped at both receiving and sending ends), used to generate the number of the original data sub-block that needs to be used when encoding the sub-block;
  • Protocol definition or network (pre-)configuration of a network coding parameter combination number where "parameter combination” includes a K value, an N value, and related parameters generated by the coding matrix; different “parameter combination numbers” correspond to different network codes Parameter configuration.
  • the sender carries the number of the original data sub-block used when the coding sub-block is encoded in the NWC header of each coding sub-block;
  • the configuration of network encoding includes one or more of the following parameters:
  • Protocol definition or network (pre) configuration corresponding to K1, K2,..., KL corresponding to the number of codes N1, N2,..., NL (or the maximum number of coded sub-blocks Nmax) generated by encoding an original data block;
  • Protocol definition or network (pre-)configuration of "coding matrix parameters” are related parameters for generating degrees of freedom d, and the distribution of d is generated locally according to related parameters.
  • K and N values the same configuration can be configured "Encoding matrix parameters", you can also configure different "coding matrix parameters” for different K values (or combinations of K values) or N values (or combinations of N values). If it is the latter, you can pass the value of K or the value of N Value to implicitly indicate the "coding matrix parameter" used;
  • Protocol definition or network (pre-)configured pseudo-random code seed (equipped at both receiving and sending ends), used to generate the number of the original data sub-block that needs to be used when encoding the sub-block;
  • the header of the network coding layer can contain one or more of the following fields:
  • Network coding parameter combination number used to indicate the value of the number of copies K actually taken for the original data to be divided into equal parts
  • the number (index) of the original NWC data block (Service Data Unit, SDU);
  • the sender carries the number of the original data sub-block corresponding to the coded sub-block in the NWC header of each coded sub-block;
  • the network coding layer parameters can be implicitly indicated. At this time, the header of the network coding layer is not required to indicate the selected parameters with additional information .
  • the size of the received coding sub-block can be used to indicate the network coding layer parameters used (assuming that different network coding layer parameters correspond to different coding block sizes).
  • the NWC layer may be an extended sublayer of any layer of PDCP, BAP, or RLC in the existing RAN protocol stack.
  • the header of NWC can be regarded as an extension of the header of PDCP, BAP or RLC.
  • the NWC header is called an independent header
  • the header of the NWC plus the header that the layer originally needs to add to process the data is the final header of the layer. Therefore, in the second, the NWC The header can be regarded as a subheader.
  • the NWC layer is newly added between the PDCP and RLC layers in the protocol stack.
  • the configuration of network coding includes the following parameters:
  • Protocol definition or network (pre-)configuration pseudo-random code seed (equipped at both receiving and sending ends), used to generate the original data sub-block number corresponding to the coding sub-block;
  • a coding matrix is generated, the original data is coded, and the header of the network coding layer is added before each coding sub-block.
  • Figure 8 is an example diagram of the header of the network coding layer.
  • the header of the network coding layer contains the following fields:
  • the NWC layer is an extended sublayer of PDCP in the existing protocol stack.
  • the configuration of the network coding parameters is configured for each LCH, and the configuration of the network coding parameters has a many-to-one relationship with the LCH.
  • the configuration of network coding includes parameters:
  • the protocol defines the relevant parameters of the degrees of freedom d l corresponding to K 1 , K 2 ,..., K L , and locally generates the distribution of d l according to the relevant parameters.
  • the packet size of the PDCP SDU determine the l-th K value among the L parameters defined by the protocol, namely K l ;
  • the value of N l corresponding to K l and the related parameters of corresponding d l can be obtained according to the value of l, and the distribution of d l can be generated;
  • a coding matrix is generated, the original data is coded, and the header of the network coding layer is added before each coding sub-block.
  • the header of the network coding layer contains the following fields:
  • NWC SDU service data unit number (index);
  • the initiator carries the number of the original data sub-block corresponding to the coded sub-block in the NWC header of each coded sub-block.
  • the NWC layer is an extended sublayer of RLC in the existing IAB protocol stack.
  • the configuration of the network coding parameters is configured for each LCH (logical channel), and the configuration of the network coding parameters is in a many-to-one relationship with the LCH.
  • the configuration of network coding includes parameters:
  • the protocol defines the number of codes corresponding to K 1 , K 2 ,..., K L N 1 , N 2 ,..., N L ;
  • the protocol defines the relevant parameters of the degrees of freedom d l corresponding to K 1 , K 2 ,..., K L , and locally generates the distribution of d l according to the relevant parameters.
  • the packet size of the PDCP SDU determine the l-th K value among the L parameters defined by the protocol, namely K l ;
  • the value of N l corresponding to K l and the related parameters of corresponding d l can be obtained according to the value of l, and the distribution of d l can be generated;
  • a coding matrix is generated, the original data is coded, and the header of the network coding layer is added before each coding sub-block.
  • the header of the network coding layer contains the following fields:
  • NWC SDU service data unit number (index);
  • the initiator carries the number of the original data sub-block corresponding to the coded sub-block in the NWC header of each coded sub-block.
  • D/C is used to indicate whether the protocol data unit (Protocol Data Unit, PDU) belongs to the data (data) or control (control) category; reserved (R); sequence Number (Sequence Number, SN).
  • the embodiment of the present invention is applicable to data transmission of IAB node wireless loop, between UE and serving base station, and sidelink wireless connection between UE.
  • the present invention provides a "network coding layer" design scheme, which designs the signaling configuration of the network coding (the way of indicating important parameters in the network coding) and the fields carried in the header of the SDU passing through the network coding layer. .
  • network coding can be effectively applied to the current communication system, so that the "network coding" method for data transmission has the beneficial effects of low delay and high spectrum utilization at the same time.
  • FIG. 13 is one of the structural diagrams of a communication device provided by an embodiment of the present invention.
  • the communication device shown in FIG. 13 is the first communication device in the embodiment of the present invention.
  • the communication device 1300 includes:
  • the first obtaining module 1301 is used to obtain network coding parameters
  • the first generating module 1302 is configured to generate N coding sub-blocks of the first data block through the target layer according to the network coding parameters, where N is a positive integer;
  • the first sending module 1303 is configured to send the N coded sub-blocks to the second communication device.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, L numbers, and L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the size of the first coding sub-block in the N coding sub-blocks corresponds to any one of the following:
  • the header of the first coding sub-block in the N coding sub-blocks includes a first set field, and the first set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the header of the first coding sub-block in the N coding sub-blocks includes a second set field, and the second set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate the target number among the L numbers
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the target layer is the first layer in the radio access network RAN protocol stack
  • the first layer includes a network coding sublayer
  • the first target indication field is generated by the network coding sublayer
  • the first target collection domain is the first collection domain or the second collection domain.
  • the header of the first coding sub-block further includes a third aggregation field, and the third aggregation field is generated by another sub-layer in the target layer except the network coding sub-layer.
  • the third collection domain is located before the first target collection domain, or the third collection domain is located after the first target collection domain.
  • the target layer is the second layer in the RAN protocol stack, and the second layer is the network coding layer.
  • the network coding layer satisfies any one of the following:
  • the network coding layer is set between the PDCP layer and the radio link control RLC layer;
  • the network coding layer is set between the PDCP layer and the backhaul adaptive protocol BAP layer.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the first obtaining module 1301 is specifically configured to:
  • the communication device 1300 can implement each process implemented by the first communication device in the method embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 14 is a second structural diagram of a communication device provided by an embodiment of the present invention.
  • the communication device shown in FIG. 14 is the second communication device according to the embodiment of the present invention.
  • the communication device 1400 includes:
  • the second obtaining module 1401 is configured to obtain M column vectors corresponding to the M coding sub-blocks when the M coding sub-blocks corresponding to the first data block are received, each of the column vectors includes K Element, K is the number of divisions of the first data block, and M is a positive integer less than or equal to the number N of coded sub-blocks generated based on the first data block;
  • the second generating module 1402 is configured to generate a first matrix, the first matrix including the M column vectors;
  • the restoration module 1403 is configured to restore the first data block according to the first matrix and the M coded sub-blocks when the first matrix is a row full-rank matrix.
  • the second obtaining module 1402 is specifically configured to:
  • Acquire M column vectors corresponding to the M coded sub-blocks according to the first information includes any one of the following:
  • a pseudo-random code seed in the network coding parameters where the pseudo-random code seed is used to determine the column vector information corresponding to the coding sub-block;
  • the fourth field in the header of each coding sub-block in the M coding sub-blocks, and the fourth field in the header of each coding sub-block is used to indicate column vector information corresponding to the coding sub-block.
  • the network coding parameters further include at least one of the following: L first parameters, L second parameters, third parameters, and L numbers, where L is a positive integer;
  • each network coding parameter combination includes at least two of the following: One parameter, second parameter, and third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the network coding parameter is determined according to at least one of a protocol agreement and configuration information sent by the third communication device.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fourth aggregation field, and the fourth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fifth aggregation field, and the fifth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate a target number, where the target number indicates a target network coding parameter combination in P network coding parameter combinations, and P is a positive integer;
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block further includes a sixth set field, and the first The six set fields are generated by other sublayers in the first layer except the network coding sublayer;
  • the second target collection domain is the fourth collection domain or the fifth collection domain.
  • the sixth collection domain is located before the second target collection domain, or the third collection domain is located after the second target collection domain.
  • the communication device 1400 can implement each process implemented by the second communication device in the method embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 15 is the third structural diagram of a communication device provided by an embodiment of the present invention.
  • the communication device shown in FIG. 15 is the third communication device according to the embodiment of the present invention.
  • the communication device 1500 includes:
  • the second sending module 1501 is configured to send configuration information for configuring network coding parameters.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds , L number, L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of partitions of the data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of divisions of the first data block, and the maximum number of divisions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the communication device 1500 can implement each process implemented by the third communication device in the method embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • FIG. 16 is a fourth structural diagram of a communication device provided by an embodiment of the present invention.
  • the communication device shown in FIG. 16 may be a schematic diagram of the hardware structure of the first communication device, the second communication device, or the third communication device in the embodiment of the present invention.
  • the communication device 1600 includes a processor 1601, a memory 1602, a user interface 1603, a transceiver 1604, and a bus interface.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1601 and various circuits of the memory represented by the memory 1602 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described in this article.
  • the bus interface provides the interface.
  • the transceiver 1604 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 1603 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the communication device 1600 further includes: a computer program stored on the memory 1602 and running on the processor 1601.
  • the communication device shown in FIG. 16 may be a schematic diagram of the hardware structure of the first communication device in the embodiment of the present invention.
  • N coding sub-blocks of the first data block are generated through the target layer, where N is a positive integer
  • the N coded sub-blocks are sent to the second communication device through the transceiver 1604.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, L numbers, and L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the size of the first coding sub-block in the N coding sub-blocks corresponds to any one of the following:
  • the header of the first coding sub-block in the N coding sub-blocks includes a first set field, and the first set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the header of the first coding sub-block in the N coding sub-blocks includes a second set field, and the second set field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate the target number among the L numbers
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the first coding sub-block
  • the fourth field is used to indicate the column vector information corresponding to the first coding sub-block
  • the fifth field is used to indicate the data length of the first coding sub-block.
  • the target layer is the first layer in the radio access network RAN protocol stack
  • the first layer includes a network coding sublayer
  • the first target indication field is generated by the network coding sublayer
  • the first target collection domain is the first collection domain or the second collection domain.
  • the header of the first coding sub-block further includes a third aggregation field, and the third aggregation field is generated by another sub-layer in the target layer except the network coding sub-layer.
  • the third collection domain is located before the first target collection domain, or the third collection domain is located after the first target collection domain.
  • the target layer is the second layer in the RAN protocol stack, and the second layer is the network coding layer.
  • the network coding layer satisfies any one of the following:
  • the network coding layer is set between the PDCP layer and the radio link control RLC layer;
  • the network coding layer is set between the PDCP layer and the backhaul adaptive protocol BAP layer.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the communication device 1600 can implement each process implemented by the first communication device in the embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • the communication device shown in FIG. 16 may be a schematic diagram of the hardware structure of the second communication device in the embodiment of the present invention.
  • each of the column vectors includes K elements, and K is The number of divisions of the first data block, M is a positive integer less than or equal to the number N of coded sub-blocks generated based on the first data block;
  • the first matrix is a row full-rank matrix
  • Acquire M column vectors corresponding to the M coded sub-blocks according to the first information includes any one of the following:
  • a pseudo-random code seed in the network coding parameters where the pseudo-random code seed is used to determine the column vector information corresponding to the coding sub-block;
  • the fourth field in the header of each coding sub-block in the M coding sub-blocks, and the fourth field in the header of each coding sub-block is used to indicate column vector information corresponding to the coding sub-block.
  • the network coding parameters further include at least one of the following: L first parameters, L second parameters, third parameters, and L numbers, where L is a positive integer;
  • each network coding parameter combination includes at least two of the following: One parameter, second parameter, and third parameter;
  • the first parameter is used to determine the number of divisions of the first data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of partitions of the first data block, and the maximum number of partitions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the network coding parameter is determined according to at least one of a protocol agreement and configuration information sent by the third communication device.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fourth aggregation field, and the fourth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block in the M coding sub-blocks further includes a fifth aggregation field, and the fifth aggregation field includes at least one of the following:
  • the first field is used to indicate the number of divisions of the first data block
  • the sixth field is used to indicate a fourth parameter, and the fourth parameter has a corresponding relationship with the number of divisions of the first data block;
  • the seventh field is used to indicate a target number, where the target number indicates a target network coding parameter combination in P network coding parameter combinations, and P is a positive integer;
  • the second field is used to indicate the number of the first data block
  • the third field is used to indicate the number of the second coding sub-block
  • the fifth field is used to indicate the data length of the second coding sub-block.
  • the header of the second coding sub-block further includes a sixth set field, and the first The six set fields are generated by other sublayers in the first layer except the network coding sublayer;
  • the second target collection domain is the fourth collection domain or the fifth collection domain.
  • the sixth collection domain is located before the second target collection domain, or the third collection domain is located after the second target collection domain.
  • the communication device 1600 can implement each process implemented by the second communication device in the embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • the communication device shown in FIG. 16 may be a schematic diagram of the hardware structure of the third communication device in the embodiment of the present invention.
  • the configuration information is sent through the transceiver Z04 for configuring network coding parameters.
  • the network coding parameters include at least one of the following: L first parameters, L second parameters, third parameters, pseudo-random code seeds, and L numbers , L is a positive integer;
  • the pseudo-random code seed is used to determine the column vector information corresponding to the coded sub-block
  • the L numbers are used to indicate L network coding parameter combinations in P network coding parameter combinations, P is a positive integer greater than or equal to L, and each network coding parameter combination includes at least two of the following: first parameter , The second parameter, the third parameter;
  • the first parameter is used to determine the number of partitions of the data block
  • the second parameter is used to determine the value of N
  • the third parameter is used to determine the distribution of degrees of freedom.
  • the L second parameters correspond to the L first parameters.
  • the number of the third parameter is 1 or Q
  • Q is an integer greater than 1 and less than or equal to L.
  • the Q third parameters satisfy at least one of the following:
  • the Q third parameters correspond to the L first parameters
  • the Q third parameters correspond to the L second parameters.
  • the first parameter is any one of the following: the number of divisions of the first data block, and the maximum number of divisions of the first data block.
  • the second parameter is any one of the following: the number of coding sub-blocks corresponding to the first data block, and the maximum number of coding sub-blocks corresponding to the first data block.
  • the network coding parameter corresponds to any one of the following: a communication device, a media access control MAC entity of the communication device, a cell group, a logical channel, and a logical channel group.
  • the communication device 1600 can implement each process implemented by the third communication device in the embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, details are not described herein again.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the above-mentioned embodiment of the data processing method applied to the first communication device is realized.
  • each process of the data processing method embodiment applied to the second communication device, or, each process of the configuration method embodiment applied to the third communication device and can achieve the same technical effect. In order to avoid repetition, it is not here. Go into details again.
  • 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 technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a communication device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.
  • a communication device which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

Abstract

La présente invention concerne un procédé de traitement de données, un procédé de configuration et un dispositif de communication. Le procédé de traitement de données applicable dans un premier dispositif de communication comprend les étapes suivantes : acquisition d'un paramètre de codage de réseau ; génération de N sous-blocs de codage d'un premier bloc de données par le biais d'une couche cible sur la base du paramètre de codage de réseau ; et transmission des N sous-blocs de codage à un deuxième dispositif de communication, N étant un nombre entier positif.
PCT/CN2021/070812 2020-01-10 2021-01-08 Procédé de traitement de données, procédé de configuration, et dispositif de communication WO2021139751A1 (fr)

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