CN111385060B - Data transmission method, device, equipment and storage medium - Google Patents
Data transmission method, device, equipment and storage medium Download PDFInfo
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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
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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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
- H04L1/0041—Arrangements at the transmitter end
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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
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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
- H04L1/0071—Use of interleaving
Abstract
The invention discloses a data transmission method, a data transmission device, data transmission equipment and a storage medium. Wherein, the method comprises the following steps: acquiring two or more local grouped data to be transmitted, wherein the number of data packets in each grouped data is the same; determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data; if the number of the continuous packet loss in the previous data transmission period is larger than the number of the check data packets, transmitting the data packets and the check data packets in different grouped data after staggered arrangement; and if the number of the continuous lost packets in the previous data transmission period is less than or equal to the number of the check data packets, sending the data packets and the check data packets in the grouped data. According to the technical scheme provided by the embodiment of the invention, the data transmission sequence of different grouped data is determined by predicting the packet loss distribution state of the data transmission, so that the packet loss recovery rate of the data transmission is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of internet, in particular to a data transmission method, a data transmission device, data transmission equipment and a storage medium.
Background
With the rapid development of internet technology, data transmission on different devices is becoming more and more common, but network link congestion in the transmission process, low performance of a certain network device, hardware defects of device hardware or network cables, software problems on the network device, and the like all lead to network packet loss in the data transmission process. At this time, packet loss caused by different reasons may result in different packet loss distribution states.
The current packet loss recovery technology mainly comprises methods such as retransmission and forward error correction, wherein the retransmission can fully utilize the broadband to realize the packet loss recovery, but has the defect of introducing larger time delay, and particularly has larger influence in real-time interactive application; the forward error correction is that the sending end compiles the redundancy data in advance, and the receiving end recovers the packet loss according to the received redundancy data. Regarding the packet loss compensation technology, an interleaving technology can also be adopted, wherein the interleaving is to reorder the data packets before sending, so that the original close data packets in the transmission stream are separated, and the receiving end is arranged back according to the original sequence when receiving the corresponding data packets; since, for audio data, packet loss for a long period of time continuously causes discomfort and difficulty in understanding to the user's sense of hearing, while data unit loss for a short period of time is acceptable and understandable to the user's sense of hearing, interleaving can improve the effect at the time of continuous packet loss.
In the conventional forward error correction method, after a redundant packet of a current packet is generated, the redundant packet is sequentially sent out, that is, a payload packet and the redundant packet of the same packet are sequentially sent out; at this time, if the network packet loss is a continuous packet loss, some packets only lose few packets (or no packet is lost), but a lot of redundant packets are sent; and other packets may not receive enough data packets to cause the lost packets to be unrecoverable. Meanwhile, the traditional interleaving method only simply transmits the media payload packets in a simple interleaving manner, and can compensate the influence caused by continuous packet loss to a certain extent, but the packet loss cannot be really recovered at the moment, and meanwhile, too long time delay is introduced when the interleaving interval is too long.
Disclosure of Invention
Embodiments of the present invention provide a data transmission method, apparatus, device, and storage medium, so as to solve the problem in the prior art that packet loss data cannot be recovered, and improve packet loss recovery rate in a data transmission process.
In a first aspect, an embodiment of the present invention provides a data transmission method, where the method includes:
acquiring two or more local grouped data to be transmitted, wherein the number of data packages in each grouped data is the same;
determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data;
if the number of the continuous lost packets in the previous data transmission period is larger than the number of the check data packets, transmitting the data packets and the check data packets in different grouped data after staggered arrangement; and if the number of the continuous lost packets in the previous data transmission period is less than or equal to the number of the check data packets, sending the data packets and the check data packets in the grouped data.
Further, before determining the number of the check data packets according to the predicted packet loss rate and the number of the data packets, the method further includes:
acquiring the packet loss rate in the previous data transmission period;
and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
Further, the sending the data packets and the check data packets in different packet data after being arranged in a staggered manner includes:
acquiring the packet loss times of which the number of continuous packet losses in the previous data transmission period exceeds the number of the verification data packets and the total packet loss times in the previous data transmission period;
determining the quantity of packets which are arranged in a staggered mode in the grouped data according to the ratio of the packet loss times to the total packet loss times, the number of the data packets in the grouped data and the number of the check data packets;
and selecting corresponding data packets and/or verification data packets in each grouped data according to the packet number, and inserting the selected data packets and/or verification data packets into the sending queues of the unselected data packets and verification data packets for sending after the selected data packets and/or verification data packets are arranged in a staggered mode.
Further, determining the number of packets arranged in a staggered manner in the grouped data according to the ratio of the packet loss times to the total packet loss times, and the number of data packets in the grouped data and the number of check data packets, includes:
and multiplying the ratio of the packet loss times to the total packet loss times and the total number of the data packets and the check data packets in the grouped data, and taking the corresponding multiplication result as the number of the packets which are arranged in a staggered mode in the grouped data.
Further, the obtaining of the corresponding number of check data packets in the packet data according to the data packets in the packet data includes:
and processing data packets in the grouped data by adopting a Forward Error Correction (FEC) algorithm to obtain a corresponding number of check data packets in the grouped data.
Further, the prediction Model is a Hidden Markov (HMM) Model.
In a second aspect, an embodiment of the present invention provides a data transmission apparatus, where the apparatus includes:
the device comprises a grouped data acquisition module, a transmission module and a transmission module, wherein the grouped data acquisition module is used for acquiring two or more grouped data to be locally transmitted, and the number of data packets in each grouped data is the same;
the verification data packet determining module is used for determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data;
the data transmission module is used for transmitting the data packets and the check data packets in different grouped data after staggered arrangement if the number of the continuous packet loss in the previous data transmission period is larger than the number of the check data packets; and if the number of the continuous lost packets in the previous data transmission period is less than or equal to the number of the check data packets, sending the data packets and the check data packets in the grouped data.
Further, the data transmission apparatus further includes:
the predicted packet loss rate determining module is used for acquiring the packet loss rate in the previous data transmission period; and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
Further, the data transmission module includes:
a packet loss determining unit, configured to obtain packet loss times that the number of consecutive packet losses in a previous data transmission period exceeds the number of the verification data packets, and a total number of packet loss times in the previous data transmission period;
a packet number determining unit, configured to determine the number of packets in staggered arrangement in the packet data according to a ratio between the packet loss times and the total packet loss times, and the number of data packets in the packet data and the number of check data packets;
and the staggered sending unit is used for selecting corresponding data packets and/or verification data packets in each grouped data according to the packet number, inserting the selected data packets and/or verification data packets into the sending queues of the unselected data packets and the verification data packets after staggered arrangement, and sending the data packets and/or the verification data packets.
Further, the packet number determining unit is specifically configured to:
and multiplying the ratio of the packet loss times to the total packet loss times and the total number of the data packets and the check data packets in the grouped data, and taking the corresponding multiplication result as the number of the packets which are arranged in a staggered mode in the grouped data.
Further, the check data packet determining module is specifically configured to:
and processing the data packets in the grouped data by adopting an FEC algorithm to obtain the check data packets with corresponding number in the grouped data.
Further, the prediction model is a hidden markov HMM model.
In a third aspect, an embodiment of the present invention provides an apparatus, where the apparatus includes:
one or more processors;
storage means 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 are caused to implement the data transmission method described in any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the data transmission method described in any embodiment of the present invention.
The embodiment of the invention provides a data transmission method, a device, equipment and a storage medium, wherein a corresponding number of check data packets in packet data are obtained by predicting packet loss rate and the number of data packets in the packet data, and the packet loss distribution state of the data transmission at the time is predicted by the number of continuous packet losses and the number of the check data packets in the previous data transmission period, so that the data transmission sequence of different packet data is determined, when the number of the continuous packet losses is larger than or equal to the number of the check data packets, the current continuous packet losses are indicated, the data packets and the check data packets in different packet data are distributed in a staggered mode and then transmitted, the packet loss number in each packet data during the continuous packet losses is reduced, the packet loss recovery rate of the packet data is improved, when the number of the continuous packet losses is smaller than the number of the check data packets, the data packets and the check data packets in the packet data are continuously transmitted, so that certain check data packets can be reserved in different packet data, the packet loss recovery rate of the packet data is improved to a certain extent.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a scene architecture diagram of an application scene to which a data transmission method according to an embodiment of the present invention is applied;
fig. 2A is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 2B is a schematic diagram of different packet loss distribution states in a method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a data transmission process according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of a data transmission process according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a data transmission apparatus according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
At present, when a forward error correction algorithm is used to generate check data packets in different packet data, data packets and check data packets in the same packet data are usually sent in sequence, that is, data packets and check data packets in each packet data are sent after being arranged in sequence, at this time, if there is a continuous packet loss situation in the data transmission process, a certain packet data may lose more data packets and/or check data packets in the transmission process, and a receiving end cannot recover the data packets and/or check data packets lost in the transmission process when receiving the packet data. In theory, as long as it is ensured that the packet loss rate in the data transmission network is less than the check rate, an ideal data packet sending model can be found to realize 100% of packet loss recovery rate in data transmission, at this time, the present embodiment mainly determines the number of check data packets in packet data according to the predicted packet loss rate and the number of data packets in the packet data, and obtains the corresponding number of check data packets according to the data packets in the packet data, and at this time, the packet loss distribution state in the data transmission process can be predicted according to the number of continuous packet losses and the number of check data packets in the previous data transmission cycle, so that the corresponding sending sequence of the data packets and the check data packets in different packet data can be determined according to different packet loss distribution states, and thus, the packet loss recovery rate in data transmission can be improved on the basis of the same redundancy.
Fig. 1 is a scene architecture diagram of an application scene to which a data transmission method according to an embodiment of the present invention is applied. Referring to fig. 1, the application scenario includes a source server 10 and a destination server 20.
The source server 10 is a data sending end in data transmission, and is configured to execute the data transmission method provided in any embodiment of the present invention, and set a corresponding packet sending model according to different packet loss distribution states, where the packet sending model includes sending sequences of data packets and check data packets in corresponding different packet data, and the source server 10 sends the data packets and the check data packets in the different packet data to the destination server 20 according to the corresponding sending sequences; the destination server 20 is a data receiving end in data transmission, and is capable of receiving data packets and check data packets in different packets sent by the source server 10, and recovering packet-lost data in different packets in the transmission process according to the received data packets and check data packets.
Since the data transmission is to transmit the data packets and the check data packets in different packet data according to the packet transmission sequences correspondingly set in different packet loss distribution states, the corresponding packet transmission sequences set according to different packet loss distribution states can ensure that the destination server 20 has a better packet loss recovery capability for the received packet data in the packet loss distribution state.
It should be noted that, the number of the source servers 10 and the number of the destination servers 20 are different according to different data transmission paths, the same source server 10 may send different data packets to different destination servers 20, and the same destination server 20 may also receive data packets sent by a plurality of source servers 10; at this time, when the same source server 10 transmits data to different destination servers 20, packet loss reasons of different destination servers 20 are different, and at this time, different packet loss distribution states exist, so that the packet sending sequence set for different destination servers 20 by the same source server 10 is also different.
Example one
Fig. 2A is a flowchart of a data transmission method according to an embodiment of the present invention, where this embodiment is applicable to any terminal device capable of sending corresponding data to other devices. The scheme of the embodiment of the invention can be suitable for improving the packet loss recovery in data transmission. The data transmission method provided by this embodiment may be executed by the data transmission apparatus provided by the embodiment of the present invention, where the apparatus may be implemented in a software and/or hardware manner, and is integrated in a device for executing the method, and the device may be any terminal device having a data transmission function.
Specifically, referring to fig. 2A, the method may include the steps of:
s210, two or more local grouped data to be transmitted are obtained, and the number of data packages in each grouped data is the same.
In this embodiment, all local data to be transmitted is divided into a plurality of smaller data segments of equal length, and necessary control information is added in front of each data segment to serve as a header of the data segment, where each data segment with a header is a packet, and the data segment corresponding to each packet is packet data. Meanwhile, each grouped data can be divided into a plurality of data packets according to the size of the data transmission quantity, and the number of the data packets in each grouped data is the same. Specifically, the packet refers to corresponding data obtained by dividing each packet data into minimum transmission units. For example, in this embodiment, all data to be locally transmitted may be divided into two or more packet data, when one data frame is taken as one data packet, because each packet data is an equal-length data segment, at this time, one data frame in the packet data is taken as one data packet, and the number of data packets in each packet data is the same.
Optionally, when the source server transmits the local data to the corresponding destination server, the source server preferably needs to acquire all local data to be transmitted, and at this time, the data to be transmitted is divided in advance according to the set groups, and generates corresponding data packets; therefore, all data to be locally transmitted can be obtained by acquiring two or more divided grouped data to be locally transmitted, each grouped data includes a plurality of data packets representing actual data information to be transmitted, and the data packets are data of the minimum data transmission unit due to the equal-length data segments divided by each grouped data, so that the number of the data packets included in each grouped data can be determined to be the same.
S220, determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data.
The predicted packet loss rate refers to the packet loss rate predicted for the data transmission process by performing statistical analysis on packet loss distribution states of two communication parties of the data transmission in actual application within a period of time before the data transmission. The check data packet refers to a redundant packet which can be generated by encoding the data packet transmitted this time by adopting a preset encoding technology and can recover packet loss data in the subsequent transmission process; in this embodiment, both a data packet and a check data packet in packet data are sent to a destination server, where the destination server may recover packet-lost data according to an actually received data packet and a check data packet, for example, the packet data includes three data packets A1, A2, and A3, and two check data packets A1 and A2 are correspondingly generated, at this time, the data packets A1, A2, and A3 and the check data packets A1 and A2 are all sent to the destination server, and if the data packets A1, A2, and A3 are lost in a transmission process, at this time, the destination server may completely recover the data packets A1, A2, and A3 according to the received check data packets A1 and A2; or the data packets A1 and A2 and the check data packet A1 are lost during transmission, and at this time, the destination server can completely recover the data packets A1 and A2 according to the received data packet A3 and the check data packet A2.
Optionally, in this embodiment, the specific process of determining the predicted packet loss rate by performing statistical analysis on packet loss distribution states of the two communication parties of the data transmission in actual application within a period of time before the data transmission may include: acquiring the packet loss rate in the previous data transmission period; and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
The packet loss rate is an actual packet loss rate determined according to an actual packet loss distribution state of the two communication parties of the current data transmission during the data transmission in the last data transmission period. The prediction model is a network model which is trained by carrying out statistical analysis on packet loss conditions in a large amount of data transmission processes and can predict the packet loss rate corresponding to the data transmission according to the actual packet loss rate in the previous data transmission. The prediction model acquires a large amount of historical transmission data in an adjacent data transmission period in advance during training, determines the actual packet loss rate in the adjacent data transmission period, uses the actual packet loss rate in the last data transmission period of the current data transmission period as a training sample, uses the actual packet loss rate in the current data transmission period as a sample label, inputs a large amount of training samples into the pre-constructed prediction model to obtain the predicted packet loss rate in the current data transmission period, compares the predicted packet loss rate with the sample label to determine the training error of the prediction model, corrects the training parameters in the prediction model according to the training error, re-acquires a new training sample, continuously processes the new training sample according to the corrected training parameters in the prediction model until the obtained training error is lower than a preset error threshold value, and shows that the prediction model at the moment can accurately predict the packet loss rate in the current data transmission period according to the actual packet loss rate in the last data transmission period, so that the current prediction model is used as the prediction model constructed in the final practical application.
Optionally, in this embodiment, the actual data transmission conditions of the two communication parties of this data transmission in the previous data transmission period are analyzed, and the packet loss distribution state in the previous data transmission period is counted, so as to determine the actual packet loss rate of the two communication parties of this data transmission in the previous data transmission period; meanwhile, the packet loss rate in the previous data transmission period is input into a pre-constructed prediction model, the prediction model can perform corresponding processing analysis on the packet loss rate through the trained training parameters, so that the predicted packet loss rate for predicting the packet loss condition of the data transmission is obtained, and the verification data packet in the packet data is determined according to the predicted packet loss rate.
For example, the prediction model in this embodiment may be an HMM model, where the HMM model includes an observation sequence and a hidden state sequence, the packet loss rate in the previous data transmission period in this embodiment is the observation sequence, and the predicted packet loss rate in this data transmission is the hidden state sequence. In this embodiment, the packet loss rate in the previous data transmission period may be quantized and input into a pre-constructed HMM model for training, so as to calculate a state transition probability matrix and a confusion matrix from the previous data transmission period to the current data transmission period in the HMM model, and determine the predicted packet loss rate in the current data transmission period according to the packet loss rate in the previous data transmission period and the calculated state transition probability matrix and confusion matrix.
In addition, in theory, as long as the packet loss rate in the data transmission network is ensured to be smaller than the check rate, an ideal data packet sending model can be found to realize 100% packet loss recovery rate in data transmission, so that when the predicted packet loss rate in the data transmission is obtained, L is required to be ensured to be less than or equal to k/(n + k); wherein L is the predicted packet loss rate in the data transmission, k is the number of check data packets in the grouped data, and n is the number of data packets in the grouped data; at the moment, k is more than or equal to nL/(1-L), so that the number of verification data packets in the grouped data can be obtained according to the predicted packet loss rate in the data transmission and the predetermined number of the data packets in the grouped data; since both the data packets and the check data packets in the packet data need to be sent to the destination server, the minimum number of the check data packets that can satisfy the above conditions is generally selected to ensure less data transmission delay.
Further, when the number of check data packets in the packet data is obtained, in this embodiment, each data packet included in each packet data may be processed by using a preset coding technique, so as to obtain a corresponding number of check data packets in each packet data, and then both the data packets and the check data packets in the packet data are sent to the destination server, so as to implement recovery of the packet-lost data.
Optionally, in this embodiment, obtaining the corresponding number of check data packets in the packet data according to the data packets in the packet data may specifically include: and processing the data packets in the grouped data by adopting a Forward Error Correction (FEC) algorithm to obtain the check data packets with the corresponding number in the grouped data.
Specifically, in this embodiment, the FEC algorithm is used to perform corresponding error correction coding on the data packets in each packet data, so as to obtain corresponding check data packets, at this time, each data packet in the packet data may be coded multiple times according to different coding parameters, so as to obtain a corresponding number of check data packets, different check data packets in the same packet data are all associated with each data packet in the packet data, and at this time, the lost data packets may be recovered according to the check data packets.
S230, judging whether the number of the continuous packet loss in the previous data transmission period is larger than the number of the check data packets, if so, executing S250; if not, go to S240.
Specifically, when sending packet data, in the existing data transmission, usually an FEC algorithm is used to generate check data packets in each packet data, and then the data packets and the check data packets in the same packet data are sent in sequence, that is, the data packets and the check data packets in each packet data are sent after being arranged in sequence; at this time, if there is a case of continuous packet loss, a large number of data packets and check data packets may be lost in a certain packet of data, and recovery of the packet of data cannot be achieved, so that in this embodiment, a critical situation of recovery of lost data can be completed when the packet of data needs to be continuously transmitted, and at this time, as long as the number of continuously lost packets in the packet of data is less than or equal to the number of check data packets, recovery of packet loss data of the packet of data when the data packets and the check data packets are continuously transmitted can be ensured. As shown in fig. 2B, if the data packets and the check data packets in the packet data are continuously transmitted, when the number of continuously lost packets is less than or equal to the number of the check data packets, the lost data may be all the check data packets lost in a certain packet data, but none of the data packets in the packet data are lost, or a part of the check data packets and a part of the data packets lost in a certain packet data, and the number of lost packets is less than or equal to the number of the check data packets, at this time, the lost data recovery in the packet data can also be achieved by the check data packets and the data packets that are not lost; when the number of the continuous packet loss is greater than the number of the check data packets, part of the data packets and all the check data packets in a certain packet of data may be lost, and at this time, the lost part of the data packets cannot be recovered, so that the sending sequence of the source server needs to be changed, so that the destination server can recover the corresponding packet loss data.
Optionally, in order to determine whether the packet loss distribution state in the current data transmission reaches a critical condition for continuously sending packet data, it is necessary to determine whether the number of continuous packet losses of both communication parties of the current data transmission in the previous data transmission period is greater than the number of check data packets, and if the number of continuous packet losses is greater than the number of check data packets, it is indicated that packet loss data in continuous sending cannot be recovered, and at this time, the sending sequence of data packets in different packet data and check data packets needs to be re-determined; if the number of the continuous packet loss is less than or equal to the number of the check data packets, it indicates that the packet loss data can be recovered during continuous transmission, and then the original continuous transmission mode is adopted to continue to transmit the data packets and the check data packets in the packet data in the data transmission.
And S240, sending the data packet and the check data packet in the grouped data.
Specifically, if the number of consecutive packet losses in the previous data transmission period is less than or equal to the number of check data packets, it is indicated that recovery of packet loss data in the data transmission process can also be ensured when data packets and check data packets in packet data are continuously transmitted, and at this time, the data packets and check data packets in each packet data are directly transmitted by directly adopting the original continuous transmission mode.
And S250, transmitting the data packets and the check data packets in different grouped data after staggering arrangement.
Specifically, if the number of consecutive packet losses in the previous data transmission cycle is greater than the number of check data packets, it is indicated that recovery of packet loss data in the data transmission process cannot be guaranteed when data packets and check data packets in packet data are continuously transmitted, at this time, the transmission sequence of the data packets and check data packets in different packet data needs to be reset, and the data packets and check data packets in different packet data are transmitted after being arranged in a staggered manner.
According to the technical scheme provided by the embodiment, the corresponding number of check data packets in the packet data is obtained by predicting the packet loss rate and the number of the data packets in the packet data, and the packet loss distribution state of the data transmission at this time is predicted by predicting the number of continuous packet losses in the previous data transmission period and the number of the check data packets, so that the data transmission sequence of different packet data is determined, when the number of the continuous packet losses is greater than the number of the check data packets, it is indicated that the current packet losses are continuous, the data packets in the different packet data and the check data packets are distributed in a staggered manner and then transmitted, the number of the packet losses in each packet data during the continuous packet losses is reduced, the packet loss recovery rate of the packet data is improved, when the number of the continuous packet losses is less than or equal to the number of the check data packets, it can be considered that the current packet losses are intermittent, the data packets and the check data packets in the different packet data can be kept for a certain number of data packets and/or check data packets, so that the packet loss recovery rate of the packet data transmission is improved to a certain extent.
Example two
Fig. 3 is a schematic diagram of a data transmission process according to a second embodiment of the present invention. The embodiment is optimized on the basis of the embodiment. Specifically, in this embodiment, a detailed description is mainly given of a specific process of sending data packets and check data packets in different packet data after interleaving when the number of consecutive packet losses in the previous data transmission period is greater than or equal to the number of check data packets.
Optionally, the data transmission method in this embodiment may include the following steps:
s310, two or more local grouped data to be transmitted are obtained, and the number of data packages in each grouped data is the same.
S320, determining the number of the check data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the check data packets in the grouped data according to the data packets in the grouped data.
S330, judging whether the number of the continuous packet loss in the previous data transmission period is larger than the number of the check data packets, if so, executing S350; if not, go to S340.
S340, sending the data packet and the check data packet in the grouped data.
And S350, acquiring the packet loss times of which the continuous packet loss quantity in the previous data transmission period exceeds the verification data packet quantity and the total packet loss times in the previous data transmission period.
Specifically, when it is determined that the number of consecutive packet losses in the previous data transmission period is greater than the number of check data packets, and data packets in different packet data and the check data packets need to be sent after being arranged in an interleaved manner, because there may be a situation of multiple consecutive packet losses in the previous data transmission process, the number of consecutive packet losses at each time may be different, and therefore, for the probability that different numbers of consecutive packet losses occur in the previous data transmission period, in this embodiment, corresponding numbers of data packets and check data packets may be selected from the packet data to perform the interleaved arrangement of different packet data, and the remaining data packets and check data packets are sent in the original continuous manner, so that the packet loss recovery rate in the packet loss distribution state corresponding to different numbers of consecutive packet losses is improved. Optionally, in this embodiment, when the data packets in different packet data and the check data packets are distributed in an interleaved manner and then transmitted, in order to determine the probability that packet loss recovery can be achieved and packet loss recovery cannot be achieved during continuous transmission, first, the number of times of packet loss occurring when the number of continuous packet loss in a previous data transmission period is greater than the number of check data packets and the total number of times of packet loss occurring during different stages of packet loss in the previous data transmission period need to be obtained, and the probability that packet loss recovery can be achieved and packet loss recovery cannot be achieved during continuous transmission of packet data is subsequently determined according to the number of times of packet loss and the total number of times of packet loss occurring when the number of continuous packet loss is greater than the number of check data packets.
S360, determining the quantity of the packets which are distributed in a staggered mode in the grouped data according to the ratio of the packet loss times to the total packet loss times, the number of the data packets in the grouped data and the number of the check data packets.
Specifically, in this embodiment, when obtaining the packet loss times that the packet loss situation in which the number of consecutive packet losses in the previous data transmission period is greater than the number of verification data packets and the total packet loss times that occur in different stages of the packet loss situation in the previous data transmission period, the probability that packet loss recovery cannot be achieved when packet data is continuously transmitted may be determined according to the ratio of the packet loss times to the total packet loss times, and at this time, the number of data packets in the packet data and the number of verification data packets may be determined according to the determined probability that packet loss recovery cannot be achieved when packet data is continuously transmitted, that is, the ratio of the packet loss times to the total packet loss times, and the number of data packets in the packet data and the number of verification data packets, and the number of packets that need to be subjected to staggered arrangement in each packet data may be determined, so as to achieve packet loss data recovery.
Optionally, in this embodiment, when determining the number of packets that need to be arranged in a staggered manner in packet data, the method may specifically include: and multiplying the ratio of the packet loss times to the total packet loss times and the total number of the data packets and the check data packets in the grouped data, and taking the corresponding multiplication result as the number of the packets which are distributed in an interlaced mode in the grouped data. That is, the product of the ratio of the packet loss times to the total packet loss times and the total number of the data packets and the check data packets in the grouped data is directly used as the packet number for determining the staggered arrangement in each grouped data, so that the data packets and/or the check data packets corresponding to the grouped data are selected from the grouped data for staggered arrangement, and the packet loss recovery rate in the data transmission process is improved.
And S370, selecting corresponding data packets and/or verification data packets in each grouped data according to the number of the packets, distributing the selected data packets and/or verification data packets in a staggered manner, inserting the selected data packets and/or verification data packets into a sending queue of unselected data packets and verification data packets, and sending the data packets and/or verification data packets.
Optionally, in this embodiment, after determining the number of packets that need to be arranged in a staggered manner in the packet data, corresponding data packets and/or check data packets may be selected from each packet data according to the number of packets, the selected data packets and/or check data packets in different packet data are arranged in a staggered manner, the data packets and/or check data packets in each unselected packet data are arranged in sequence to generate corresponding sending queues, and at this time, the data packets and/or check data packets in different packet data that are arranged in a staggered manner are inserted into different unselected packet data in the sending queues in a segmented manner, so that staggered sending of the corresponding data packets and/or check data packets in different packet data is achieved.
According to the technical scheme provided by the embodiment, the number of packets needing to be arranged in a staggered manner in different grouped data is determined according to the packet loss times and the total packet loss times of which the number of continuous packet losses exceeds the number of verification data packets in the previous data transmission period and the total number of data packets and verification data packets in the grouped data, so that the staggered arrangement sending mode with the best corresponding packet loss recovery effect in different packet loss distribution states is determined, the corresponding data staggered transmission in different packet loss distribution states is realized, and the packet loss recovery rate in the data transmission process is improved.
EXAMPLE III
Fig. 4 is a schematic diagram of a data transmission process according to a third embodiment of the present invention. The present embodiment is optimized based on the above embodiments. Specifically, the source server needs to transmit 3 local packet data to the destination server, where the packet data 1 includes data packets A1, A2, and A3, the packet data 2 includes data packets B1, B2, and B3, and the packet data 3 includes data packets C1, C2, and C3, the number of check data packets in the packet data is determined according to the predicted packet loss rate and the number of data packets in the packet data, if it is determined that the packet data includes 3 check data packets, check data packets A1, A2, and A3 in the packet data are obtained according to the data packets A1, A2, and A3 in the packet data 1, check data packets B1, B2, and B3 in the packet data are obtained according to the data packets B1, B2, and B3 in the packet data 2, and check data packets C1, C2, and C3 in the packet data are obtained according to the data packets C1, C2, and C3 in the packet data 3.
Further, determining a packet data sending method with a better packet loss recovery effect in the data transmission process by judging whether the number of continuous packet losses in the previous data transmission period is greater than the number of check data packets in packet data, as shown in fig. 4, when the number of continuous packet losses is less than or equal to the number of check data packets in packet data, that is, the ratio of the number of packet losses and the total number of packet losses, where the number of continuous packet losses in the previous data transmission period exceeds the number of check data packets, is 0, and at this time, continuously sending data packets and check data packets in 3 packet data; when the number of continuous lost packets is greater than the number of check data packets in the grouped data, and the ratio of the number of lost packets of which the number of continuous lost packets exceeds the number of check data packets to the total number of lost packets is between 0 and 1, it is indicated that not only continuous lost packets of which the number of continuous lost packets exceeds the number of check data packets exist, but also continuous lost packets of which the number of continuous lost packets is less than or equal to the number of check data packets exist, the ratio of the number of lost packets of which the number of continuous lost packets exceeds the number of check data packets to the total number of lost packets, and the product of the total number of data packets and check data packets in the grouped data is used as the number of packets needing to be arranged in a staggered manner in the grouped data, if the ratio is 0.5, the number of packets needing to be arranged in each grouped data is determined to be 3, and 3 data packets and/or check data packets are respectively selected from the 3 grouped data packets to be arranged in a staggered manner, as shown in fig. 4, in the present embodiment, 3 check data packets in each grouped data are respectively selected to be arranged in a staggered manner between different grouped data packets, and sent to a destination queue, and the service packets arranged in a sequence corresponding to be sent to a destination; when the number of continuous packet losses is greater than the number of check data packets in the packet data, and the ratio of the number of packet losses, where the number of continuous packet losses exceeds the number of check data packets, to the total number of packet losses is 1, it is described that the packet loss distribution state in the data transmission process is the continuous packet losses where the number of continuous packet losses is greater than the number of check data packets, but there is no continuous packet losses where the number of continuous packet losses is less than or equal to the number of check data packets, and at this time, all data packets and check data packets in different packet data need to be sent after being arranged in a staggered manner, as shown in fig. 4, at this time, the corresponding packet loss recovery effect in different packet loss distribution states is significantly improved.
According to the technical scheme provided by the embodiment, the corresponding number of check data packets in the packet data is obtained by predicting the packet loss rate and the number of the data packets in the packet data, and the packet loss distribution state of the data transmission at this time is predicted by predicting the number of continuous packet losses in the previous data transmission period and the number of the check data packets, so that the data transmission sequence of different packet data is determined, when the number of the continuous packet losses is greater than or equal to the number of the check data packets, it is indicated that the current packet losses are continuous, the data packets and the check data packets in the different packet data are distributed in a staggered manner and then transmitted, the number of the packet losses in each packet data during the continuous packet losses is reduced, the packet loss recovery rate of the packet data is improved, when the number of the continuous packet losses is less than the number of the check data packets, the data packets and the check data packets in the packet data are continuously transmitted, so that a certain check data packets can be reserved in the different packet data, the packet loss recovery rate of the packet data is improved to a certain extent.
Example four
Fig. 5 is a schematic structural diagram of a data transmission device according to a fourth embodiment of the present invention, specifically, as shown in fig. 5, the data transmission device may include:
the packet data obtaining module 510 is configured to obtain two or more local packet data to be transmitted, where the number of data packets in each packet data is the same;
a check data packet determining module 520, configured to determine the number of check data packets according to the predicted packet loss rate and the number of data packets, and obtain, according to data packets in the packet data, a corresponding number of check data packets in the packet data;
a data transmission module 530, configured to send the data packets in different packet data and the check data packets after interleaving if the number of consecutive packet losses in the previous data transmission period is greater than or equal to the number of check data packets; and if the number of the continuous lost packets in the previous data transmission period is less than the number of the check data packets, transmitting the data packets and the check data packets in the grouped data.
According to the technical scheme provided by the embodiment, the corresponding number of check data packets in the packet data is obtained by predicting the packet loss rate and the number of the data packets in the packet data, and the packet loss distribution state of the data transmission at this time is predicted by predicting the number of continuous packet losses in the previous data transmission period and the number of the check data packets, so that the data transmission sequence of different packet data is determined, when the number of the continuous packet losses is greater than or equal to the number of the check data packets, it is indicated that the current packet losses are continuous, the data packets and the check data packets in the different packet data are distributed in a staggered manner and then transmitted, the number of the packet losses in each packet data during the continuous packet losses is reduced, the packet loss recovery rate of the packet data is improved, when the number of the continuous packet losses is less than the number of the check data packets, the data packets and the check data packets in the packet data are continuously transmitted, so that a certain check data packets can be reserved in the different packet data, the packet loss recovery rate of the packet data is improved to a certain extent.
Further, the predicted packet loss rate may be determined by performing the following operations:
acquiring the packet loss rate in the previous data transmission period;
and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
Further, the data transmission module 530 may include:
a packet loss determining unit, configured to obtain packet loss times that the number of consecutive packet losses in a previous data transmission period exceeds the number of check data packets, and a total number of packet loss times in the previous data transmission period;
the packet quantity determining unit is used for determining the quantity of the packets which are distributed in a staggered mode in the grouped data according to the ratio of the packet loss times to the total packet loss times, the number of the data packets in the grouped data and the number of the check data packets;
and the staggered sending unit is used for selecting corresponding data packets and/or check data packets in each grouped data according to the number of the packets, inserting the selected data packets and/or check data packets into a sending queue of unselected data packets and check data packets after staggered arrangement, and sending the data packets and/or check data packets.
Further, the packet number determining unit may be specifically configured to:
and multiplying the ratio of the packet loss times to the total packet loss times and the total number of the data packets in the grouped data and the check data packets, and taking the corresponding multiplication result as the number of the packets in staggered arrangement in the grouped data.
Further, the check packet determining module 520 may be specifically configured to:
and processing the data packets in the grouped data by adopting an FEC algorithm to obtain the corresponding number of check data packets in the grouped data.
Further, the prediction model may be a hidden markov HMM model.
The data transmission device provided by the embodiment can be applied to the data transmission method provided by any embodiment, and has corresponding functions and beneficial effects.
EXAMPLE five
Fig. 6 is a schematic structural diagram of an apparatus according to a fifth embodiment of the present invention, as shown in fig. 6, the apparatus includes a processor 60, a storage device 61, and a communication device 62; the number of processors 60 in the device may be one or more, and one processor 60 is taken as an example in fig. 6; the processor 60, the storage means 61 and the communication means 62 in the device may be connected by a bus or other means, as exemplified by the bus connection in fig. 6.
The storage device 61 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the data transmission method provided in the embodiment of the present invention. The processor 60 executes various functional applications of the apparatus and data processing by executing software programs, instructions, and modules stored in the storage device 61, that is, implements the above-described data transmission method.
The storage device 61 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 storage device 61 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 storage 61 may further include memory located remotely from the processor 60, 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 communication means 62 may be used to enable a network connection or a mobile data connection between devices.
The device provided by this embodiment may be configured to perform the data transmission method provided by any of the above embodiments, and has corresponding functions and beneficial effects.
Example six
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the data transmission method in any of the embodiments. The method specifically comprises the following steps:
acquiring two or more local grouped data to be transmitted, wherein the number of data packages in each grouped data is the same;
determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data;
if the number of the continuous lost packets in the previous data transmission period is more than or equal to the number of the check data packets, transmitting the data packets and the check data packets in different grouped data after staggered arrangement; and if the number of the continuous packet losses in the previous data transmission period is less than the number of the check data packets, transmitting the data packets and the check data packets in the grouped data.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the data transmission method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can 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 for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the data transmission apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of data transmission, comprising:
acquiring two or more local grouped data to be transmitted, wherein the number of data packets in each grouped data is the same;
determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data;
if the number of the continuous lost packets in the previous data transmission period is larger than the number of the check data packets, transmitting the data packets and the check data packets in different grouped data after staggered arrangement; and if the number of the continuous lost packets in the previous data transmission period is less than or equal to the number of the check data packets, sending the data packets and the check data packets in the grouped data.
2. The method of claim 1, wherein before determining the number of check packets according to the predicted packet loss rate and the number of packets, further comprising:
acquiring the packet loss rate in the previous data transmission period;
and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
3. The method of claim 1, wherein the interleaving the data packets in the different packet data and the check data packets before transmission comprises:
acquiring the packet loss times of which the number of continuous packet losses in the previous data transmission period exceeds the number of the verification data packets and the total packet loss times in the previous data transmission period;
determining the quantity of packets which are distributed in a staggered manner in the grouped data according to the ratio of the packet loss times to the total packet loss times, the number of data packets in the grouped data and the number of verification data packets;
and selecting corresponding data packets and/or verification data packets in each grouped data according to the packet number, and inserting the selected data packets and/or verification data packets into the sending queues of the unselected data packets and verification data packets for sending after the selected data packets and/or verification data packets are arranged in a staggered mode.
4. The method of claim 3, wherein determining the number of packets in the packet data that are arranged in an interleaving manner according to the ratio of the packet loss times to the total packet loss times, and the number of data packets in the packet data and the number of check data packets comprises:
and multiplying the ratio of the packet loss times to the total packet loss times and the total number of the data packets and the check data packets in the grouped data, and taking the corresponding multiplication result as the number of the packets which are arranged in a staggered mode in the grouped data.
5. The method of claim 1, wherein obtaining a corresponding number of check packets in the packet data according to the packet data in the packet data comprises:
and processing the data packets in the grouped data by adopting a Forward Error Correction (FEC) algorithm to obtain the check data packets with the corresponding number in the grouped data.
6. The method of claim 2, wherein the predictive model is a hidden markov HMM model.
7. A data transmission apparatus, comprising:
the device comprises a grouped data acquisition module, a transmission module and a transmission module, wherein the grouped data acquisition module is used for acquiring two or more grouped data to be locally transmitted, and the number of data packets in each grouped data is the same;
the verification data packet determining module is used for determining the number of the verification data packets according to the predicted packet loss rate and the number of the data packets, and obtaining the corresponding number of the verification data packets in the grouped data according to the data packets in the grouped data;
the data transmission module is used for transmitting the data packets and the check data packets in different grouped data after staggered arrangement if the number of the continuous packet loss in the previous data transmission period is larger than the number of the check data packets; and if the number of the continuous lost packets in the previous data transmission period is less than or equal to the number of the check data packets, sending the data packets and the check data packets in the grouped data.
8. The apparatus of claim 7, further comprising:
the predicted packet loss rate determining module is used for acquiring the packet loss rate in the previous data transmission period; and inputting the packet loss rate into a pre-constructed prediction model to obtain the predicted packet loss rate.
9. A data transmission device, characterized in that the device comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a data transmission method as claimed in any one of claims 1-6.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the data transmission method according to any one of claims 1 to 6.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119319A (en) * | 2007-09-19 | 2008-02-06 | 腾讯科技（深圳）有限公司 | Method, transmitting/receiving device and system against lost packet in data transmission process |
| CN101166273A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Method, device and system for transmitting video data |
| CN106792265A (en) * | 2017-01-11 | 2017-05-31 | 广州偕作信息科技有限公司 | A kind of network real-time flow-medium transmission method and system |
| CN108024156A (en) * | 2017-12-14 | 2018-05-11 | 四川大学 | A kind of part reliable video transmission method based on hidden Markov model |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166273A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Method, device and system for transmitting video data |
| CN101119319A (en) * | 2007-09-19 | 2008-02-06 | 腾讯科技（深圳）有限公司 | Method, transmitting/receiving device and system against lost packet in data transmission process |
| CN106792265A (en) * | 2017-01-11 | 2017-05-31 | 广州偕作信息科技有限公司 | A kind of network real-time flow-medium transmission method and system |
| CN108024156A (en) * | 2017-12-14 | 2018-05-11 | 四川大学 | A kind of part reliable video transmission method based on hidden Markov model |
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