CN112953686B - Data retransmission method, device, equipment and storage medium - Google Patents
Data retransmission method, device, equipment and storage medium Download PDFInfo
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- CN112953686B CN112953686B CN202011409733.2A CN202011409733A CN112953686B CN 112953686 B CN112953686 B CN 112953686B CN 202011409733 A CN202011409733 A CN 202011409733A CN 112953686 B CN112953686 B CN 112953686B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1816—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of the same, encoded, message
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
- H04L1/0058—Block-coded modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a data retransmission method, a device, equipment and a storage medium, wherein the method comprises the following steps: adding check bits to the original data block and then sending the original data block to a receiving end; receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end; and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner. The scheme improves the data retransmission efficiency and optimizes the data transmission mechanism.
Description
Technical Field
The present application relates to the field of data transmission, and in particular, to a data retransmission method, apparatus, device, and storage medium.
Background
In the data transmission process in the stop-wait mode, the sending end stops waiting for the feedback message of the other party after sending one data block, and sends the next data block if the feedback message is data reception complete, and resends the current data block if the feedback message is data loss.
In the prior art, in order to improve the data transmission efficiency, check bits are usually added to data for transmission, and there is no special processing for retransmission feedback instructions, which needs to be improved.
Disclosure of Invention
The embodiment of the invention provides a data retransmission method, a data retransmission device, data retransmission equipment and a storage medium, which improve the data retransmission efficiency and optimize a data transmission mechanism.
In a first aspect, an embodiment of the present invention provides a data retransmission method, where the method includes:
adding check bits to the original data block and then sending the original data block to a receiving end;
receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end;
and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
Optionally, adding the check bits to the original data block and then sending the original data block to the receiving end includes:
determining the check type of an original data block, distributing a transmission process created based on the check type for the original data, and sending the original data block through the transmission process.
Optionally, after adding the check bit to the original data block and sending the original data block to the receiving end, the method further includes:
the receiving end checks the received original data block, determines the data integrity of the original data block, generates a first retransmission instruction if the data integrity is smaller than a first threshold value, and sends the first retransmission instruction to the sending end, and generates a second retransmission instruction if the data integrity is smaller than a second threshold value, and sends the second retransmission instruction to the sending end, wherein the first threshold value is larger than the second threshold value.
Optionally, after adding the check bit to the original data block and sending the original data block to the receiving end, the method further includes:
the receiving end counts the retransmission times of the received original data block, if the retransmission times is larger than a first preset time, a first retransmission instruction is generated, and the first retransmission instruction is sent to the sending end; and if the retransmission times are greater than second preset times, generating a second retransmission instruction, and sending the second retransmission instruction to the sending end, wherein the second preset times are greater than the first preset times.
Optionally, the data retransmission method further includes:
after the data sending end receives the first retransmission instruction, a new first transmission process is established, and retransmission sending of the data block associated with the first retransmission instruction is carried out;
and after the data sending end receives the second retransmission instruction, a new second transmission process is established for sending normal data.
Optionally, the method further includes a step of adjusting the first threshold, the second threshold, the first preset number of times, and the second preset number of times, which specifically includes:
initializing quality change parameters of a communication channel, sending an individual data frame to a plurality of sending end devices through a transmission process of a receiving end, and in a waiting state, and sending a next data frame according to feedback information of the plurality of sending end devices after the feedback information is received;
receiving a first communication signal sent by first sending end equipment, determining a first communication quality parameter, receiving a second communication signal sent by second sending end equipment after a preset time interval, and determining a second communication quality parameter, wherein the first sending end equipment and the second sending end equipment are different sending end equipment with the same application type;
and correcting the quality change parameter according to the first communication quality parameter and the second communication quality parameter, and setting and adjusting the first threshold, the second threshold, the first preset times and the second preset times according to the quality change parameter.
In a second aspect, an embodiment of the present invention further provides a data retransmission apparatus, where the apparatus includes:
the check bit adding module is used for adding check bits to the original data block and then sending the original data block to the receiving end;
the feedback instruction processing module is used for receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end;
the feedback instruction processing module is further configured to: and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in a correlation manner.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement the data retransmission method according to the embodiment of the present invention.
In a fourth aspect, the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the data retransmission method according to the present invention.
In the embodiment of the invention, the check bit is added to the original data block and then the original data block is sent to a receiving end; receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end; and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner. The scheme improves the data retransmission efficiency and optimizes the data transmission mechanism.
Drawings
Fig. 1 is a flowchart of a data retransmission method according to an embodiment of the present invention;
fig. 2 is a flowchart of another data retransmission method according to an embodiment of the present invention;
fig. 3 is a flowchart of another data retransmission method according to an embodiment of the present invention;
fig. 4 is a block diagram of a data retransmission apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the invention and do not delimit the embodiments. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Fig. 1 is a flowchart of a data retransmission method according to an embodiment of the present invention, where the present embodiment is applicable to data retransmission, and the method may be executed by a computing device, and specifically includes the following steps:
and S101, adding check bits to the original data block and then sending the original data block to a receiving end.
Illustratively, such as adding CRC check bits. After the CRC code is transmitted, a check process is performed at the receiver to determine whether the data has errors. Thereby ensuring the integrity and accuracy of the transmitted data.
Correspondingly, the method comprises the steps of determining the check type of the original data block, distributing a transmission process created based on the check type to the original data, and sending the original data block through the transmission process.
Step S102, receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end.
Accordingly, when a retransmission command is received, for example, a first retransmission command, which is exemplarily the case of performing retransmission for the first time, a forward error correction code is added to the original data and the original data is transmitted to the receiving end for error correction at the receiving end.
In an embodiment, after receiving the first retransmission instruction, the data sending end creates a new first transmission process, and performs retransmission sending of the data block associated with the first retransmission instruction; and after the data sending end receives the second retransmission instruction, a new second transmission process is established for sending normal data. Thereby improving data transmission efficiency.
Step S103, if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
Correspondingly, if the receiving end still sends the retransmission instruction after error correction, namely the second retransmission instruction indicates that data retransmission is needed, the original data block and the retransmission data packet are associated and sent to the receiving end. Thereby improving the probability of the receiving end obtaining correct data.
According to the scheme, the original data block is added with the check bits and then is sent to the receiving end; receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end; and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in a correlation manner. The scheme improves the data retransmission efficiency and optimizes the data transmission mechanism.
On the basis of the above technical solution, the method further includes a step of adjusting the first threshold, the second threshold, the first preset number of times, and the second preset number of times, and specifically includes:
initializing quality change parameters of a communication channel, sending an individual data frame to a plurality of sending end devices through a transmission process of a receiving end, and in a waiting state, and sending a next data frame according to feedback information of the plurality of sending end devices after the feedback information is received; receiving a first communication signal sent by first sending end equipment, determining a first communication quality parameter, receiving a second communication signal sent by second sending end equipment after a preset time interval, and determining a second communication quality parameter, wherein the first sending end equipment and the second sending end equipment are different sending end equipment with the same application type; and correcting the quality change parameter according to the first communication quality parameter and the second communication quality parameter, and setting and adjusting the first threshold, the second threshold, the first preset times and the second preset times according to the quality change parameter.
In one embodiment, after the first communication quality parameter and the second communication quality parameter are determined, the quality variation parameter is corrected according to the first communication quality parameter and the second communication quality parameter. Specifically, the method comprises the following steps: and multiplying the ratio of the second communication quality parameter to the first communication quality parameter by the quality change parameter obtained after initialization, and updating the quality change parameter according to the obtained result. By correcting the quality variation parameter, the transmission mode is not changed based on the actual condition of a single channel, but data is updated based on the variation trend of the channel. And after the quality change parameter is corrected, correspondingly adjusting and determining a proper first threshold value, a proper second threshold value, a proper first preset frequency and a proper second preset frequency based on the corrected quality change parameter.
Fig. 2 is a flowchart of another data retransmission method according to an embodiment of the present invention. Wherein, after adding the check bit to the original data block and then sending to the receiving end, still include:
the receiving end checks the received original data block, determines the data integrity of the original data block, generates a first retransmission instruction if the data integrity is smaller than a first threshold value, and sends the first retransmission instruction to the sending end, and generates a second retransmission instruction if the data integrity is smaller than a second threshold value, and sends the second retransmission instruction to the sending end, wherein the first threshold value is larger than the second threshold value.
The method specifically comprises the following steps:
step S201, adding check bits to the original data block and then sending the original data block to a receiving end.
Step S202, the receiving end checks the received original data block, determines the data integrity of the original data block, generates a first retransmission instruction if the data integrity is smaller than a first threshold value, and sends the first retransmission instruction to the sending end, and generates a second retransmission instruction if the data integrity is smaller than a second threshold value, and sends the second retransmission instruction to the sending end, wherein the first threshold value is larger than the second threshold value.
Step S203, receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end.
Step S204, if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
Fig. 3 is a flowchart of another data retransmission method according to an embodiment of the present invention. After the original data block is added with the check bits and then sent to the receiving end, the method further comprises the following steps:
the receiving end counts the retransmission times of the received original data block, if the retransmission times is larger than a first preset time, a first retransmission instruction is generated, and the first retransmission instruction is sent to the sending end; and if the retransmission times are greater than second preset times, generating a second retransmission instruction, and sending the second retransmission instruction to the sending end, wherein the second preset times are greater than the first preset times.
The method comprises the following specific steps:
and S301, adding check bits to the original data block and then sending the original data block to a receiving end.
Step S302, the receiving end counts the retransmission times of the received original data block, if the retransmission times is larger than a first preset time, a first retransmission instruction is generated, and the first retransmission instruction is sent to the sending end; and if the retransmission times are more than second preset times, generating a second retransmission instruction, and sending the second retransmission instruction to the sending end, wherein the second preset times are more than the first preset times.
Step S303, receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end.
Step S304, if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
Fig. 4 is a block diagram of a data retransmission apparatus according to an embodiment of the present invention, where the apparatus is configured to execute the data retransmission method according to the embodiment of the present invention, and has corresponding functional modules and beneficial effects of the execution method. As shown in fig. 4, the apparatus specifically includes: a check bit adding module 101 and a feedback instruction processing module 102, wherein,
a check bit adding module 101, configured to add a check bit to the original data block and send the added check bit to a receiving end;
a feedback instruction processing module 102, configured to receive a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, add a forward error correction code to the original data and send the result to the receiving end;
the feedback instruction processing module is further configured to: and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
According to the scheme, the original data block is added with the check bits and then is sent to the receiving end; receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end; and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in a correlation manner. The scheme improves the data retransmission efficiency and optimizes the data transmission mechanism.
In a possible embodiment, the check bit adding module 101 is specifically configured to:
determining the check type of an original data block, distributing a transmission process created based on the check type for the original data, and sending the original data block through the transmission process.
In one possible embodiment, the feedback instruction processing module 102 is further configured to:
after adding check bits to an original data block and sending the original data block to a receiving end, the receiving end checks the received original data block to determine the data integrity of the original data block, if the data integrity is smaller than a first threshold value, a first retransmission instruction is generated and sent to a sending end, if the data integrity is smaller than a second threshold value, a second retransmission instruction is generated and sent to the sending end, wherein the first threshold value is larger than the second threshold value.
In one possible embodiment, the feedback instruction processing module 102 is further configured to:
after adding check bits to an original data block and sending the original data block to a receiving end, the receiving end counts the retransmission times of the received original data block, if the retransmission times are larger than a first preset time, a first retransmission instruction is generated, and the first retransmission instruction is sent to the sending end; and if the retransmission times are more than second preset times, generating a second retransmission instruction, and sending the second retransmission instruction to the sending end, wherein the second preset times are more than the first preset times.
In a possible embodiment, the feedback instruction processing module 102 is further configured to:
after the data sending end receives the first retransmission instruction, a new first transmission process is established, and retransmission sending of the data block associated with the first retransmission instruction is carried out;
and after the data sending end receives the second retransmission instruction, a new second transmission process is established for sending normal data.
In a possible embodiment, the feedback instruction processing module 102 is further configured to:
the adjustment of the first threshold, the second threshold, the first preset times and the second preset times specifically includes:
initializing quality change parameters of a communication channel, sending an individual data frame to a plurality of sending end devices through a transmission process of a receiving end, and in a waiting state, and sending a next data frame according to feedback information after receiving the feedback information of the plurality of sending end devices;
receiving a first communication signal sent by first sending end equipment, determining a first communication quality parameter, receiving a second communication signal sent by second sending end equipment after a preset time interval, and determining a second communication quality parameter, wherein the first sending end equipment and the second sending end equipment are different sending end equipment with the same application type;
and correcting the quality change parameter according to the first communication quality parameter and the second communication quality parameter, and setting and adjusting the first threshold, the second threshold, the first preset times and the second preset times according to the quality change parameter.
Fig. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention, as shown in fig. 5, the apparatus includes a processor 201, a memory 202, an input device 203, and an output device 204; the number of the processors 201 in the device may be one or more, and one processor 201 is taken as an example in fig. 5; the processor 201, the memory 202, the input device 203 and the output device 204 in the apparatus may be connected by a bus or other means, and fig. 5 illustrates the connection by a bus as an example.
The memory 202 is used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the data retransmission method in the embodiment of the present invention. The processor 201 executes various functional applications of the device and data processing by running software programs, instructions and modules stored in the memory 202, that is, implements the data retransmission method described above.
The memory 202 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 202 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 202 may further include memory located remotely from the processor 201, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 203 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the apparatus. The output device 204 may include a display device such as a display screen.
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor are configured to perform a method for data retransmission, the method including:
adding check bits to the original data block and then sending the original data block to a receiving end;
receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end;
and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in a correlation manner.
From the above description of the embodiments, it is obvious for those skilled in the art that the embodiments of the present invention can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better implementation in many cases. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device) perform the methods described in the embodiments of the present invention.
It should be noted that, in the embodiment of the data retransmission apparatus, each included unit and module are only divided according to functional logic, but are not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the embodiment of the invention.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the embodiments of the invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A data retransmission method, comprising:
adding check bits to the original data block and then sending the original data block to a receiving end;
receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end;
and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in a correlation manner.
2. The method of claim 1, wherein the adding parity bits to the original data block before sending to a receiving end comprises:
determining the check type of an original data block, distributing a transmission process created based on the check type for the original data, and sending the original data block through the transmission process.
3. The method of claim 2, after the original data block is sent to a receiving end after the parity bits are added to the original data block, further comprising:
the receiving end checks the received original data block, determines the data integrity of the original data block, generates a first retransmission instruction if the data integrity is smaller than a first threshold value, and sends the first retransmission instruction to the sending end, and generates a second retransmission instruction if the data integrity is smaller than a second threshold value, and sends the second retransmission instruction to the sending end, wherein the first threshold value is larger than the second threshold value.
4. The method of claim 2, after the original data block is sent to a receiving end after the parity bits are added to the original data block, further comprising:
the receiving end counts the retransmission times of the received original data block, if the retransmission times is larger than a first preset time, a first retransmission instruction is generated, and the first retransmission instruction is sent to the sending end; and if the retransmission times are greater than second preset times, generating a second retransmission instruction, and sending the second retransmission instruction to the sending end, wherein the second preset times are greater than the first preset times.
5. The method of claim 4, wherein the method for retransmitting data further comprises:
after the data sending end receives the first retransmission instruction, a new first transmission process is established, and retransmission sending of the data block associated with the first retransmission instruction is carried out;
and after the data sending end receives the second retransmission instruction, a new second transmission process is established for sending normal data.
6. The method according to claim 3, further comprising the step of adjusting the first threshold and the second threshold, specifically comprising:
initializing quality change parameters of a communication channel, sending an individual data frame to a plurality of sending end devices through a transmission process of a receiving end, and in a waiting state, and sending a next data frame according to feedback information of the plurality of sending end devices after the feedback information is received;
receiving a first communication signal sent by first sending end equipment, determining a first communication quality parameter, receiving a second communication signal sent by second sending end equipment after a preset time interval, and determining a second communication quality parameter, wherein the first sending end equipment and the second sending end equipment are different sending end equipment with the same application type;
and correcting the quality change parameter according to the first communication quality parameter and the second communication quality parameter, and setting and adjusting the first threshold and the second threshold according to the quality change parameter.
7. A data retransmission apparatus, comprising:
the check bit adding module is used for adding check bits to the original data block and then sending the original data block to the receiving end;
the feedback instruction processing module is used for receiving a feedback instruction sent by the receiving end, and if the feedback instruction is a first retransmission instruction, adding a forward error correction code to the original data and then sending the original data to the receiving end;
the feedback instruction processing module is further configured to: and if the feedback instruction is a second retransmission instruction, encoding the original data block to obtain a retransmission data packet, and transmitting the original data block and the retransmission data packet to a receiving end in an associated manner.
8. The data retransmission apparatus according to claim 7, wherein the check bit adding module is specifically configured to:
determining the check type of an original data block, distributing a transmission process created based on the check type for the original data, and sending the original data block through the transmission process.
9. An apparatus, the apparatus comprising: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method of data retransmission transmission according to any one of claims 1-6.
10. A computer-readable storage medium, the computer-executable instructions when executed by a computer processor for performing the data retransmission transmission method according to any of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011409733.2A CN112953686B (en) | 2020-12-06 | 2020-12-06 | Data retransmission method, device, equipment and storage medium |
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| CN202011409733.2A CN112953686B (en) | 2020-12-06 | 2020-12-06 | Data retransmission method, device, equipment and storage medium |
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| CN112953686A CN112953686A (en) | 2021-06-11 |
| CN112953686B true CN112953686B (en) | 2023-04-14 |
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| AU760780B2 (en) * | 2000-05-22 | 2003-05-22 | Samsung Electronics Co., Ltd. | Data transmission apparatus and method for an HARQ data communication system |
| US7372837B2 (en) * | 2001-10-26 | 2008-05-13 | Texas Instrument Incorporated | Incremental redundancy using two stage rate matching for automatic repeat request to obtain high speed transmission |
| CN101222305B (en) * | 2007-01-09 | 2012-04-04 | 华为技术有限公司 | Data retransmission method, system and device |
| CN101286825A (en) * | 2007-04-11 | 2008-10-15 | 松下电器产业株式会社 | Hybrid automatic retransmitting method based on reliability, transmitting terminal and system thereof |
| CN101983489B (en) * | 2008-03-31 | 2016-11-09 | 马维尔国际贸易有限公司 | The method and apparatus that selectivity is combined and decoded is carried out to many code blocks of transmission block |
| US8850293B2 (en) * | 2011-12-06 | 2014-09-30 | Welch Allyn, Inc. | Wireless transmission reliability |
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