CN111586098A - Data transmission method, device, equipment and computer readable storage medium - Google Patents

Data transmission method, device, equipment and computer readable storage medium Download PDF

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Publication number
CN111586098A
CN111586098A CN202010250769.4A CN202010250769A CN111586098A CN 111586098 A CN111586098 A CN 111586098A CN 202010250769 A CN202010250769 A CN 202010250769A CN 111586098 A CN111586098 A CN 111586098A
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data
transmission
channels
channel
transmitted
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冯伟忠
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/51Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/14Session management
    • H04L67/141Setup of application sessions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/14Session management
    • H04L67/146Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding

Abstract

The embodiment of the application discloses a data transmission method, a data transmission device, data transmission equipment and a computer-readable storage medium. The method comprises the following steps: acquiring at least two data channels between a data sending end and a data receiving end; splitting data to be sent into at least two data packets, wherein each data packet is configured with an identification serial number, and the identification serial number is used for indicating the sequence of the data packets in the data to be sent; and dividing the at least two data packets into parts corresponding to the data channels, and respectively dispatching the parts to the data channels so as to cooperatively transmit the data to be transmitted through the at least two data channels. According to the technical scheme, the network bandwidth of data transmission can be greatly improved, and the stability and the efficiency of data transmission are further improved.

Description

Data transmission method, device, equipment and computer readable storage medium
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a data transmission method, apparatus, device, and computer-readable storage medium.
Background
The plug flow is a process of transmitting the content packaged in the acquisition stage to the server. Currently, after a communication connection is established between a client and a server, the client and the server implement data transmission through a plurality of network nodes. As shown in fig. 1, data collected in the client is transmitted to the server sequentially via a Wi-Fi (wireless local area network technology established in IEEE 802.11 standard) network node, an operator network node, and a server room network node.
In the above data transmission process, the network condition in the client is unstable or the data transmission is failed due to the network switching in the client, and the client needs to establish a communication connection with the server again and perform data retransmission after the communication connection is reestablished. However, in the process of reestablishing the communication connection between the client and the server, the sequential connection between the network nodes shown in fig. 1 needs to be performed, which consumes a long time, and causes that data cannot be transmitted to the server in time, so that the problem of low data transmission efficiency still exists in the existing stream pushing process.
Disclosure of Invention
In order to solve the technical problem, embodiments of the present application provide a data transmission method, an apparatus, a device, and a computer-readable storage medium.
Wherein, the technical scheme who this application adopted does:
a method of data transmission, comprising: acquiring at least two data channels between a data sending end and a data receiving end; splitting data to be sent into at least two data packets, wherein each data packet is configured with an identification serial number, and the identification serial number is used for indicating the sequence of the data packets in the data to be sent; and dividing the at least two data packets into parts corresponding to the data channels, and respectively dispatching the parts to the data channels so as to cooperatively transmit the data to be transmitted through the at least two data channels.
Another data transmission method includes: a data receiving end receives data packets respectively transmitted by at least two data channels, wherein the data packets are obtained by a data transmitting end splitting data packets to be transmitted, the at least two data packets are divided into parts corresponding to the at least two data channels and respectively distributed to the data channels, the parts are cooperatively transmitted to the data receiving end by the data channels, and the data packets contain identification serial numbers for identifying the sequence of the data packets in the data to be transmitted; and combining the received data packets according to the continuous identification serial numbers to obtain the data to be sent.
A data transmission apparatus comprising: the data channel acquisition module is used for acquiring at least two data channels between the data sending end and the data receiving end; the data splitting module is used for splitting data to be sent into at least two data packets, wherein each data packet is provided with an identification serial number, and the identification serial number is used for indicating the sequence of the data packets in the data to be sent; and the data transmission module is used for dividing the at least two data packets into parts corresponding to the data channels and respectively dispatching the parts to the data channels so as to cooperatively transmit the data to be transmitted through the at least two data channels.
A data transmission apparatus comprising a processor and a memory, the memory having stored thereon computer readable instructions which, when executed by the processor, implement a data transmission method as described above.
A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the data transmission method as described above.
In the above technical solution, at least two data channels are provided between the data sending end and the data receiving end, when the data sending end transmits data to be sent to the data receiving end, the data to be sent is split into at least two data packets, then the at least two data packets are divided into parts corresponding to the data channels, and the parts are respectively distributed to the data channels, so that the data to be sent is cooperatively transmitted to the data receiving end in the form of the data packets through the at least two data channels. Even if one or more data channels are disconnected from communication, the data to be sent can be transmitted to the data receiving end through the cooperative transmission function of other data channels without waiting for the communication connection to be reestablished, so that the network bandwidth of data transmission can be greatly improved, and the stability and the efficiency of data transmission are further improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a network architecture diagram illustrating a push flow scenario in accordance with an exemplary embodiment;
FIG. 2 is a network architecture diagram illustrating a push flow scenario in accordance with another illustrative embodiment;
FIG. 3 is a flow chart illustrating a method of data transmission according to an exemplary embodiment;
FIG. 4 is a data transmission diagram of the network architecture shown in the embodiment of FIG. 2;
FIG. 5 is a flow chart of step 110 in one embodiment of the embodiment shown in FIG. 3;
FIG. 6 is a flow chart illustrating a method of data transmission according to another exemplary embodiment;
FIG. 7 is a flow chart illustrating a method of data transmission according to another exemplary embodiment;
FIG. 8 is a flow chart illustrating a method of data transmission according to another exemplary embodiment;
FIG. 9 is a block diagram illustrating a digital transmission apparatus in accordance with an exemplary embodiment;
FIG. 10 is a block diagram illustrating a digital transmission apparatus according to another exemplary embodiment;
fig. 11 is a schematic structural diagram illustrating a data transmission apparatus according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
As shown in fig. 1, in a network architecture corresponding to a stream pushing scenario, data transmission between a client and a server depends on a communication connection pre-established between the client and the server, for example, after each network node in the network architecture shown in fig. 1 needs to sequentially establish a stream service Protocol (rtsp) connection, data in the client can be transmitted to the server.
The instability of the Wi-Fi network in the client easily causes data transmission failure, for example, the Wi-Fi network signal is weak and is not enough to support data transmission, and the network switching performed in the client also causes data transmission failure, for example, the client is switched from the Wi-Fi network to the china mobile 4G network. In order to enable the client to successfully transmit the data to the server, the communication connection between the client and the server needs to be reestablished, and data retransmission needs to be performed after the communication connection is reestablished. However, the time consumed for reestablishing the communication connection between the client and the server is long, so that the data cannot be transmitted in time, and the problem of low data transmission efficiency occurs.
In order to solve the technical problem, the present application provides a new network architecture as shown in fig. 2, in the network architecture, a client may establish a communication connection with a server in multiple ways, for example, fig. 2 shows that the client may establish a communication connection with the server through a Wi-Fi network, a second operator network, and other target devices, and cooperatively transmit data collected by the client through multiple data channels formed by the communication connection, so as to improve stability and efficiency of data transmission. The target device may include a terminal device such as a smart phone, a tablet computer, a computer, and the like.
Based on such a network architecture, embodiments of the present application respectively provide a data transmission method, a data transmission apparatus, a data transmission device, and a computer-readable storage medium, and detailed descriptions will be provided below with specific embodiments.
Referring to fig. 3, fig. 3 is a flowchart illustrating a data transmission method according to an exemplary embodiment, where the method may be specifically executed by a data sending end performing data transmission, for example, by a client in a network architecture shown in fig. 2, or the method may also be loaded in other electronic devices and executed by the other electronic devices, which is not limited in this embodiment.
As shown in fig. 3, in an exemplary embodiment, the data transmission method at least includes the following steps:
step 110, at least two data channels between the data sending end and the data receiving end are obtained.
First, it should be noted that the data sending end refers to a data sending end, and the data receiving end correspondingly refers to a data receiving end. In the application scenarios shown in fig. 1 and fig. 2, the client serves as a data sending end, and the server correspondingly serves as a data receiving end.
The data channel between the data sending end and the data receiving end is formed by pre-establishing communication connection between the data sending end and the data receiving end. It should be understood that a data channel corresponds to a transmission path of data, for example, a data channel between a client and a server shown in fig. 1 is formed by sequentially connecting network nodes between the client and the server.
In this embodiment, the number of data channels between the data sending end and the data receiving end is at least two, and the types of the data channels include at least two, which are a directly connected data channel and a data channel that needs to be transferred. The directly connected data channel is formed by sequentially connecting network nodes between a data sending end and a data receiving end, for example, the data channel between the client and the server shown in fig. 1 is the directly connected data channel. The data channel to be transferred contains network nodes and target equipment which are connected in sequence, and the target equipment serving as an intermediate medium expands a communication connection mode for the data sending end and the data receiving end through a communication module of the target equipment, so that a larger number of data channels are arranged between the data sending end and the data receiving end.
For example, in the network architecture shown in fig. 2, there are 3 data channels between the client and the server. The first data channel is a directly connected data channel and is formed by sequentially connecting a Wi-Fi network node, a first operator network node and a server room network. The second data channel is still a directly connected data channel and is formed by sequentially connecting a second operator network node and a server room network node. The third data channel is a data channel needing transferring, and is based on the communication connection between the client and the target device and the communication connection between the target device and the server, so that a data channel between the client and the server is formed.
Step 130, splitting the data to be sent into at least two data packets, where each data packet is configured with an identification serial number, and the identification serial number is used to indicate the sequence of the data packet in the data to be sent.
In this embodiment, the splitting manner of the data to be sent may be to split the data to be sent into data packets with a fixed size, or to split the data to be sent into data packets with any size, which is not limited herein.
In the split data packets, identification serial numbers for indicating the sequence of the data packets in the data to be transmitted are also configured, so that after a data receiving end receives the data packets transmitted by at least two data channels, the data packets can be combined according to the identification serial numbers contained in the data packets to obtain the data to be transmitted, and the integrity of data transmission is further ensured.
In another embodiment, a data stream identifier uniquely corresponding to data to be transmitted may be further configured in each data packet obtained by splitting data to be transmitted, where the data stream identifier is used to distinguish different data to be transmitted, so as to solve a related problem in a transmission process of multiple data to be transmitted. For the data receiving end, different data to be sent can be accurately combined and obtained according to the identification serial number and the data stream identification contained in the data packet.
It should be understood that the number of packets obtained by splitting the data to be transmitted is usually large, for example, when the data to be transmitted is video data, each frame of video data may be split into several packets, so as to obtain a large number of packets.
Step 150, dividing the at least two data packets into portions corresponding to the data channels, and respectively dispatching the portions to the data channels, so as to cooperatively transmit data to be transmitted through the at least two data channels.
First, it should be noted that, transmitting data to be transmitted through at least two data channel systems means that at least two data packets obtained by splitting the data to be transmitted are dispersed and transmitted through different data channels, and complete data to be transmitted is transmitted from a data transmitting end to a data receiving end under the mutual cooperation of the data channels.
Therefore, it is also necessary to allocate data packets to each data channel, so as to transmit the data packets allocated to each data channel to the data receiving end.
In this embodiment, the data packet obtained by splitting in step 130 is divided into parts corresponding to the data channels, so that each data channel can respectively execute transmission of the data packet corresponding to the divided part, thereby implementing cooperative transmission of data to be transmitted.
For example, the data packet allocation for each data channel may be to group data packets and dispatch each group to any one data channel, so that the data packets may be dispersed in different data channels, and the data packets transmitted in each data channel are different from each other, thereby avoiding the occurrence of data packet redundancy. For example, for the data packet sequence obtained by splitting the data to be transmitted in step 130, a fixed number of data packets may be divided into one packet, and each packet is distributed to any one data channel, and for the data receiving end, under the condition that the data channels are stable, the identification sequence numbers contained in the data packets received from each data channel are consecutive, thereby facilitating the data receiving end to perform the combination of the data packets. Alternatively, the number of packets in each packet may be arbitrary.
In another embodiment, each packet split in step 130 may also be distributed to any data channel, which may also avoid the occurrence of packet redundancy.
In another embodiment, in order to ensure the transmission integrity of the data to be transmitted, some important data packets constituting the data to be transmitted may also be distributed to multiple data channels, so that even if a network jitter occurs in a certain data channel, the overall transmission effect of the data to be transmitted is not affected, thereby ensuring that a data receiving end can receive the complete data to be transmitted.
In another embodiment, the data packets may be divided according to the data transmission capability of each data channel, for example, more data packets may be allocated to the data channel with a better network condition. Or the same number of data packets may be allocated to each data channel, and this embodiment does not limit the specific form of dividing the data packets corresponding to each data channel.
If one or more data channels are disconnected in communication or unstable in network state, the data packets which are not transmitted by the data channels can be transferred to other normal data channels for transmission, and the data channels continue to transmit the split data packets after reestablishing communication connection. Therefore, in the process of reestablishing communication of the data channel, the data packet to be transmitted in the data channel with disconnected communication connection or unstable network state is transmitted to the data receiving end through the normal data channel, and the overall transmission efficiency of the data to be transmitted of the data packet is not affected.
If the communication connection is disconnected or the data channel with unstable network state can not be recovered to normal, the data to be sent is still transmitted to the data receiving end under the coordination of other data channels.
And in the process of transmitting the data packets by each data channel, if the transmission capability of one or more data channels is reduced due to the reduction of the network signal strength, the data packet transmission strategy of each data channel can be adjusted based on the cooperation among the data channels, for example, part of the data packets which are not transmitted in the data channels with the reduced transmission capability are transferred to the data channels with normal transmission for transmission, so that the transmission efficiency of the data packets is greatly improved.
Therefore, compared with the prior art, in the method provided by this embodiment, since the data to be transmitted is cooperatively transmitted through the multiple data channels between the data transmitting end and the data receiving end, the network bandwidth of data transmission can be greatly improved, even if a certain one or multiple data channels are disconnected in communication or the network state is unstable, the data to be transmitted can be transmitted to the data receiving end through the cooperative transmission function of other data channels, retransmission of a data packet is not required after communication connection is reestablished, and when the communication connection is disconnected or the channel with unstable network state cannot be recovered to normal, the data to be transmitted can still be cooperatively transmitted to the data transmitting end through other data channels, so that the stability and efficiency of data transmission can be improved.
For example, a schematic diagram of a data transmission process involved in the network architecture shown in fig. 2 is shown in fig. 4. The intranet address of the client is 192.168.1.20, the public network address of the server is 49.235.86.10, a network port 1935 needs to be monitored at the server, then the client initiates RTMP communication connection to the network addresses 49.235.86.10:1935 of the server through different data channels, and after the RTMP communication connection is established, normal data transmission can be performed between the client and the server. If the bandwidth provided by each data channel is 10 million respectively, the bandwidth for data transmission between the client and the server is 30 million in total, so that the bandwidth for data transmission is really increased, and even if one bandwidth is abnormal, data can be transmitted through other bandwidths, so that the fault tolerance of a data transmission network is improved, and the stability and the efficiency of data transmission are ensured.
In an exemplary application scenario, an outdoor anchor needs to transmit an outdoor video shot by a smart phone to a live broadcast platform for live broadcast display in outdoor activities. Because the outdoor operator base stations are few and the movement distance of the outdoor anchor is large, the network signals of the smart phone are very unstable in outdoor activities, and the video pictures displayed by the live broadcast platform are easy to jam and the like.
If the method provided by the embodiment is adopted, the outdoor anchor can use the intelligent equipment with various communication modules to carry out outdoor live broadcast. For example, the smart device is connected to a china mobile 4G (a communication technology obtained by continuous optimization and upgrade based on a 3G communication technology) network signal and a china unicom 4G network signal at the same time, and is also connected to another smart phone through bluetooth, and the smart phone is connected to a china telecom 4G network signal, so that 3 data channels are provided between the smart device and a server corresponding to the live broadcast platform, and an outdoor video shot by the smart device can be cooperatively transmitted to the live broadcast platform through each data channel. Even if the network signal that outdoor anchor provided certain operator in the in-process of carrying out the activity is relatively weak, outdoor video still can be through other data channel cooperative transmission, and data transmission efficiency is higher to avoid live broadcast picture card pause scheduling problem to appear in the live broadcast platform.
Fig. 5 is a flow chart of step 110 in one embodiment of the embodiment shown in fig. 3. As shown in fig. 5, acquiring at least two data channels between a data sending end and a data receiving end at least includes the following steps:
step 111, detecting the state information of the communication module of the data sending end.
It should be noted that, in this embodiment, the data sending end is a terminal device, and the terminal device has at least two communication modules to support cooperative transmission of data to be sent by at least two data channels.
The communication module of the data sending end includes but is not limited to one or more of an operator network module, a wireless local area network module, a short-distance wireless communication module and a wired data communication module. In one embodiment, the carrier network module may be one or more of a china mobile network module, a china telecommunication network module, and a china Communication network module, the wireless local area network module may be a Wi-Fi module, the short-range wireless Communication module may be one or both of a bluetooth module and an NFC (near field Communication) module, and the wired data Communication module may be a USB (Universal Serial Bus) module.
The state information of the communication module is used for indicating the communication connection state of the communication module. For example, if a communication module establishes a communication connection with a target device, the status information of the communication module indicates a connected status.
And step 113, acquiring at least two data channels between the data sending end and the data receiving end according to the communication module with the state information indicated as the connected state.
As described above, if the status information of the communication module indicates that the communication module is in the connected status, it indicates that the communication module has established a communication connection, and therefore, the data channel of the communication connection that the communication module participates in can be acquired as the data channel between the data sending end and the data receiving end.
For example, in the network architecture shown in fig. 2, if the client detects that the connection state of the Wi-Fi module provided by the client is the connected state, the connection path formed between the corresponding Wi-Fi network node and the server room network may be acquired as a data channel. Based on the method, at least two data channels between the data sending end and the data receiving end can be obtained.
Therefore, based on the detection of the state information of the communication module of the data sending end, at least two data channels between the data sending end and the data receiving end can be accurately obtained, and the reliability of data transmission is further ensured.
It should be further noted that the network address of the data receiving end should be information that is known by the data sending end in advance, so that the data sending end establishes a communication connection with the data receiving end according to the network address of the data receiving end, and further forms at least two data channels between the data sending end and the data receiving end, thereby being capable of ensuring that the corresponding data channels detected by the present embodiment based on the state information of the communication module are accurate.
In one embodiment, the data sending end is provided with a short-range wireless communication module, and the short-range wireless communication module is used for establishing communication connection with the target device so as to construct a data channel needing to be relayed between the data sending end and the data receiving end.
For this purpose, the connection identification code is generated according to the network address of the data receiving end and the module information of the short-range wireless communication module. The module information of the short-range wireless communication module includes information necessary for establishing communication connection with the short-range wireless communication module, and the connection identification code may be in the form of a barcode, a two-dimensional code, a text, and the like, which is not limited in this embodiment.
The connection identification code is used for being acquired by the target device, and indicates the target device to establish communication connection with the short-distance wireless communication module according to the module information carried in the connection identification code, and establishes communication connection with the data receiving end according to the network address carried in the connection identification code, so that at least one data channel between the data sending end and the data receiving end is constructed, and the type of the constructed data channel is a data channel needing to be transferred.
It should be noted that the communication connection established between the target device and the data receiving end according to the network address carried in the identification code may also include various forms. For example, the target device itself also has multiple communication modules, and the target device may establish multiple communication connections with the data receiving end through the multiple communication modules based on the network address of the data receiving end, thereby constructing at least multiple data channels between the data transmitting end and the data receiving end.
For a data sending end, data to be sent is usually network data, and needs to be transmitted through corresponding network channels, such as various operator network channels. In the prior art, a client can only communicate with a data receiving end through one of a Wi-Fi network or an operator network, so that network data can only be transmitted through a unique network channel, and thus, stability and transmission efficiency are low. In the application, the network data is transmitted through all network channels supported by the data transmitting end, and can also be transmitted in a cooperative manner through non-network modes such as Bluetooth, NFC, USB and the like, so that the data channels for transmitting the data can be expanded to the maximum number.
Therefore, the method provided by the embodiment realizes the expansion of the data channel between the data sending end and the data receiving end, expands more data channels as far as possible under the condition that the data sending end supports multiple communication modes, and further improves the stability and efficiency of data transmission.
Fig. 6 is a flowchart illustrating a data transmission method according to another exemplary embodiment, and as in the foregoing embodiments, the method may be specifically executed by a data sending end performing data transmission, for example, by a client in the network architecture shown in fig. 2, or the method may also be loaded in other electronic devices and executed by the other electronic devices, which is also not limited in this embodiment.
As shown in fig. 6, in an exemplary embodiment, the data transmission method further includes the following steps:
step 210, when the data to be transmitted is cooperatively transmitted through at least two data channels, the transmission efficiency of each data channel is obtained.
It should be noted that, the process of cooperatively transmitting data to be transmitted by each data channel is substantially the process of transmitting an allocated data packet by each data channel, and therefore, the transmission efficiency of each data channel is substantially the transmission efficiency of each data channel for a data packet. The transmission efficiency of each data channel refers to the actual transmission effect of the data channel in the data packet transmission process.
In one embodiment, transmission feedback data returned by cooperative transmission of data to be transmitted through each data channel is acquired, so that the transmission efficiency of each data channel is determined based on the transmission feedback data corresponding to each data channel.
For example, the transmission efficiency of each data channel may be embodied in terms of a rate of data packet transmission, a packet loss rate, a network delay, and the like, and therefore, transmission feedback data returned by each data channel for transmitting a data packet may include information such as a time when the data packet reaches a data receiving end, and the transmission efficiency of each data channel is determined based on the transmission feedback information.
It should be noted that, in this embodiment, it needs to ensure that the time information between the data sending end and the data receiving end is synchronous, so as to ensure the accuracy of the determined transmission efficiency. The transmission feedback data returned by each data channel is generated by the data receiving end aiming at the received data packet, and the generated transmission feedback data is returned through the corresponding data channel.
It should be further noted that the transmission feedback data returned by each data channel acquired in this embodiment may correspond to each data packet transmitted by each data channel, that is, the data receiving end returns corresponding transmission feedback data for the received data packet, so as to accurately determine the transmission efficiency of each data channel based on a large amount of transmission feedback data.
In another embodiment, in order to reduce the possibility of congestion of the data transmission channel caused by the data transmission channel returning the transmission feedback data, so as to further improve the data transmission efficiency, at least one data packet transmitted by each data channel may further carry indication information, where the indication information is used to indicate the transmission feedback data returned to the data channel, and the data receiving end returns the transmission feedback data only after receiving the data packet carrying the indication information.
The data packets transmitted by each data channel and carrying the indication information may be randomly determined in the data packets allocated to each data channel, or obtained by performing intermittent sampling in the data packets allocated to each data channel according to a set manner, which is not limited in this embodiment.
And step 230, adjusting the data packet transmission strategy of each data channel according to the transmission efficiency of each data channel.
In order to further optimize the stability and efficiency of data transmission between the data sending end and the data receiving end, the present embodiment adjusts the data packet transmission strategy of each data channel based on the transmission efficiency of each data channel. For example, a data channel with higher transmission efficiency may transmit a greater number of data packets, so as to reduce the time length for completely transmitting data to be transmitted to a data receiving end, thereby implementing reasonable configuration of a data transmission policy.
Because network signals have volatility, and the transmission efficiency of the data channels in the data packet transmission process may change, the embodiment also monitors the data transmission efficiency of each data channel in real time according to transmission feedback data returned by each data channel, and adjusts the data packet transmission mode of each data channel in time, thereby realizing the most reasonable configuration of each data channel and ensuring the maximization of the data transmission efficiency.
In one embodiment, a preset number of data channels may be selected as the target data channels according to the descending order of transmission efficiency, and data packets that are not transmitted by other data channels except the target data channels are dispatched to the target data channels for transmission.
When the bandwidth of the data channels other than the target data channel is low, even if there is no network fluctuation, the data transmission efficiency of the data channel is low, so that most or all data packets which are not transmitted by the data channels can be dispatched to the target data channel for transmission. And for the situation that the data transmission efficiency of other data channels except the target data channel is greatly reduced due to network fluctuation, a small part of data packets which are not transmitted by the data channels can be dispatched to the target data channel for transmission.
Therefore, the transmission efficiency of each data channel is monitored in real time, the data packet transmission mode of each data channel can be adjusted in time, the most reasonable configuration of each data channel is realized, and the maximization of the data transmission efficiency is ensured.
Fig. 7 is a flowchart illustrating a data transmission method according to another exemplary embodiment, and as still in the foregoing embodiments, the method may be specifically executed by a data transmitting end performing data transmission, for example, by a client in the network architecture shown in fig. 2, or the method may be loaded in other electronic devices and executed by the other electronic devices.
As shown in fig. 7, in an exemplary embodiment, the data transmission method further includes the following steps:
step 310, obtaining transmission result information returned by the data packet transmission of at least two data channels.
It should be understood that the data packet transmission abnormality referred to in this embodiment corresponds to a case where a data channel is disconnected, for example, in practical applications, the data packet transmission abnormality may be caused by network signal loss, very weak network signal, and the like, and is substantially different from the transmission efficiency decrease described in the foregoing embodiment.
And the transmission result information returned by the data channel for transmitting the data packet indicates whether the data channel successfully transmits the data packet to the data receiving end.
In step 330, if the transmission result information indicates that the data packet is abnormally transmitted, the data packet transmission policy of the data channel is adjusted according to the transmission result information.
If the transmission result information indicates that the data packet transmission is abnormal, the data packet transmission strategy of the data channel needs to be adjusted to ensure that the abnormal condition of the data channel does not cause great influence on the transmission of the data to be sent.
In one embodiment, the data channel with abnormal transmission can be determined according to the transmission result information, and the data channel with abnormal transmission is controlled to resend the data packet with abnormal transmission. If the transmission result information returned by retransmitting the data packet still indicates that the data packet is abnormally transmitted or the data packet is abnormally transmitted after being retransmitted for many times, the data channel can be determined to be the data channel with the abnormal transmission, so that the reliability of adjusting the transmission strategy of the data packet is ensured.
After the data channel with abnormal transmission is determined, the data packet with abnormal transmission can be forwarded to other data channels for transmission, and the retransmission of the data packet in the original data channel can be controlled at the same time. For a data receiving end, it is only necessary to perform redundancy processing on a plurality of identical data packets that may be received, for example, only the first received data packet is retained, and the subsequent received identical data packets are deleted.
Therefore, the method provided by the embodiment can reasonably cope with the abnormal conditions occurring in the process of cooperatively transmitting the data to be transmitted through multiple data channels, and ensures that the abnormal conditions do not influence the transmission stability and the transmission efficiency of the data to be transmitted.
Fig. 8 is a flowchart illustrating a data transmission method, which is specifically performed by a data receiving end, according to another exemplary embodiment. As shown in fig. 8, in an exemplary embodiment, the data transmission method at least includes the following steps:
step 410, a data receiving end receives data packets respectively transmitted by at least two data channels;
and 430, combining the received data packets according to the continuous identification serial numbers to obtain data to be sent.
First, it should be noted that the data packet received by the data receiving end is obtained by the data transmitting end splitting the data packet of the data to be transmitted to obtain at least two data packets, and then the at least two data packets are divided into portions corresponding to the at least two data channels, and are respectively distributed to the data channels, and are cooperatively transmitted to the data receiving end by the data channels. For a specific implementation process, please refer to the content described in the foregoing embodiments, which is not described herein again.
Each data packet received by the data receiving end contains an identification serial number for identifying the sequence of the data packet in the data to be sent, so that the data receiving end can combine the received data packets according to the continuous identification serial numbers, and the data to be sent is obtained.
It should be further noted that, if the data packet also carries the data stream identifier, the data receiving end further combines the received data packets according to the data stream identifier and the identifier sequence number carried in the data packet to obtain different data to be sent.
If a data receiving end receives a plurality of identical data packets, redundancy processing is performed on the identical data packets, for example, only the first received data packet is retained, and the subsequent received identical data packets are deleted.
It should be understood that, in different application scenarios, the data receiving end correspondingly differs in the processing manner of the obtained data to be sent, for example, in a live broadcast scenario, the data receiving end will execute the display of the data to be sent in a live broadcast platform, and in some specific application scenarios, the data receiving end may perform operations such as storage, forwarding and the like on the data to be sent.
Therefore, based on the cooperation between the data receiving end and the data sending end, stable and efficient data transmission can be carried out between the data sending end and the data receiving end.
Fig. 9 is a block diagram illustrating a data transmission apparatus according to an example embodiment. As shown in fig. 9, in an exemplary embodiment, the data transmission apparatus includes a data channel acquisition module 510, a data splitting module 530, and a data transmission module 550.
The data channel obtaining module 510 is configured to obtain at least two data channels between a data sending end and a data receiving end. The data splitting module 530 is configured to split data to be sent into at least two data packets, where each data packet is configured with an identification serial number, and the identification serial number is used to indicate an order of the data packet in the data to be sent. The data transmission module 550 is configured to divide at least two data packets into portions corresponding to each data channel, and dispatch the portions to each data channel respectively, so as to cooperatively transmit data to be transmitted through at least two data channels.
In another exemplary embodiment, the data channel acquisition module 510 includes a state detection unit and a channel acquisition unit. The state detection unit is used for detecting the state information of the communication module of the data sending end. The channel acquiring unit is used for acquiring at least two data channels between the data sending end and the data receiving end according to the communication module of which the state information indicates the connected state.
In another exemplary embodiment, the data sending end has a communication module including at least one of a carrier network module, a wireless local area network module, a short-range wireless communication module, and a wired data communication module.
In another exemplary embodiment, the communication module of the data sending end includes a short-range wireless communication module, and the data transmission apparatus further includes an identification code generation module configured to generate a connection identification code according to the network address of the data receiving end and module information of the short-range wireless communication module, where the connection identification code is used to instruct the target device to establish a communication connection with the short-range wireless communication module according to the module information, and establish a communication connection with the data receiving end according to the network address, so as to construct a data channel between the data sending end and the data receiving end.
In another exemplary embodiment, the data transmission apparatus further includes a transmission efficiency obtaining module and a transmission policy adjusting module. The transmission efficiency obtaining module is used for obtaining the transmission efficiency of each data channel when the data to be transmitted is cooperatively transmitted through at least two data channels. And the transmission strategy adjusting module is used for adjusting the data packet transmission strategy of each data channel according to the acquired transmission efficiency.
In another exemplary embodiment, the transmission efficiency acquisition module includes a transmission feedback data acquisition unit and a transmission efficiency determination unit. The transmission feedback data acquisition unit is used for acquiring transmission feedback data returned by the cooperative transmission of the data to be transmitted by each data channel. The transmission efficiency determining unit is used for determining the transmission efficiency of each data channel based on the transmission feedback data corresponding to each data channel.
In another exemplary embodiment, the transmission feedback data acquisition unit includes an indication information carrying subunit and a data return subunit. The indication information carrying subunit is configured to carry indication information in at least one data packet transmitted by each data channel, where the indication information is used to indicate transmission feedback data returned to the data channel. And the data return subunit is used for acquiring the transmission feedback data returned by each data channel according to the indication information.
In another exemplary embodiment, the transmission policy adjustment module includes a target channel selection unit and a data dispatch unit. The target channel selection unit is used for selecting a preset number of data channels as target data channels according to the sequence of the transmission efficiency from high to low. The data dispatching unit is used for dispatching data packets which are not transmitted by other data channels except the target data channel to the target data channel for transmission.
In another exemplary embodiment, the data transmission apparatus further includes a transmission result information module and a transmission abnormality control module. The transmission result information module is used for acquiring transmission result information returned by the data channels for transmitting the data packets. And the transmission exception control module is used for adjusting the data packet transmission strategy of each data channel according to the transmission result information when the transmission result information indicates that the data packet transmission is abnormal.
In another exemplary embodiment, the transmission abnormality control module includes an abnormality channel determination unit and an abnormality adjustment unit. And the abnormal channel determining unit is used for determining a data channel with abnormal transmission according to the transmission result information. The abnormal regulation unit is used for controlling the data channel with abnormal transmission to resend the data packet with abnormal transmission, or forwarding the data packet with abnormal transmission to other data channels for transmission.
In another exemplary embodiment, a data stream identifier uniquely corresponding to data to be transmitted is further configured in each data packet obtained by splitting data to be transmitted, and the data stream identifier is used for distinguishing different data to be transmitted.
Fig. 10 is a block diagram illustrating a digital transmission apparatus according to another exemplary embodiment. As shown in fig. 10, in an exemplary embodiment, the data transmission device includes a packet reception module 610 and a packet assembly module 630.
The data packet receiving module 610 is configured to control a data receiving end to receive data packets respectively transmitted by at least two data channels, where the data packets are obtained by splitting a data packet of data to be transmitted by a data transmitting end, divide the at least two data packets into parts corresponding to the at least two data channels, and respectively dispatch the parts to the data channels, and are cooperatively transmitted to the data receiving end by the data channels, and the data packets include identification sequence numbers used for identifying the sequence of the data packets in the data to be transmitted. The data packet combining module 630 is configured to combine the received data packets according to the consecutive identification sequence numbers to obtain data to be sent.
It should be noted that the apparatus provided in the foregoing embodiment and the method provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit execute operations has been described in detail in the method embodiment, and is not described again here.
Embodiments of the present application further provide a data transmission device, including a processor and a memory, where the memory has stored thereon computer readable instructions, which when executed by the processor, implement the data transmission method as described above.
Fig. 11 is a schematic structural diagram illustrating a data transmission apparatus according to an exemplary embodiment.
It should be noted that the data transmission device is only an example adapted to the application and should not be considered as providing any limitation to the scope of the application. The data transfer device also cannot be construed as requiring reliance on, or necessity of, one or more components of the exemplary data transfer device illustrated in fig. 11.
As shown in fig. 11, in an exemplary embodiment, the data transmission device includes a processing component 701, a memory 702, a power component 703, a multimedia component 704, an audio component 705, a sensor component 707, and a communication component 708. The above components are not all necessary, and the data transmission device may add other components or reduce some components according to its own functional requirements, which is not limited in this embodiment.
The processing component 701 generally controls the overall operation of the data transfer device, such as operations associated with display, data communication, and log data processing. The processing component 701 may include one or more processors 709 to execute instructions to perform all or part of the above operations. Further, processing component 701 may include one or more modules that facilitate interaction between processing component 701 and other components. For example, the processing component 701 may include a multimedia module to facilitate interaction between the multimedia component 704 and the processing component 701.
The memory 702 is configured to store various types of data to support operation at the data transfer device, examples of which include instructions for any application or method operating on the data transfer device. The memory 702 stores one or more modules configured to be executed by the one or more processors 709 to complete all or part of the steps of the data transmission method described in the above embodiments.
The power supply component 703 provides power to the various components of the data transmission device. The power components 703 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the data transmission device.
The multimedia component 704 includes a screen that provides an output interface between the data transfer device and the user. In some embodiments, the screen may include a TP (Touch Panel) and an LCD (Liquid crystal display). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The audio component 705 is configured to output and/or input audio signals. For example, the audio component 705 includes a microphone configured to receive external audio signals when the data transmission device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. In some embodiments, audio component 705 also includes a speaker for outputting audio signals.
The sensor component 707 includes one or more sensors for providing various aspects of status assessment for the data transmission device. For example, the sensor component 707 can detect an on/off state of the data transfer device and can also detect a temperature change of the data transfer device.
The communication component 708 is configured to facilitate communication between the data transfer device and other devices in a wired or wireless manner. The data transfer device may access a Wireless network based on a communication standard, such as Wi-Fi (Wireless-Fidelity, Wireless network).
It will be appreciated that the configuration shown in fig. 11 is merely illustrative and that the data transfer device may include more or fewer components than shown in fig. 11 or have different components than shown in fig. 11. Each of the components shown in fig. 11 may be implemented in hardware, software, or a combination thereof.
Yet another aspect of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a data transmission method as described above. The computer-readable storage medium may be included in the data transmission device described in the above embodiment, or may exist separately without being assembled into the data transmission device.
The above description is only a preferred exemplary embodiment of the present application, and is not intended to limit the embodiments of the present application, and those skilled in the art can easily make various changes and modifications according to the main concept and spirit of the present application, so that the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (15)

1. A method of data transmission, comprising:
acquiring at least two data channels between a data sending end and a data receiving end;
splitting data to be sent into at least two data packets, wherein each data packet is configured with an identification serial number, and the identification serial number is used for indicating the sequence of the data packets in the data to be sent;
and dividing the at least two data packets into parts corresponding to the data channels, and respectively dispatching the parts to the data channels so as to cooperatively transmit the data to be transmitted through the at least two data channels.
2. The method of claim 1, wherein obtaining at least two data channels between a data sending end and a data receiving end comprises:
detecting state information of a communication module of a data sending end;
and acquiring at least two data channels between the data sending end and the data receiving end according to the communication module with the state information indication as the connected state.
3. The method according to claim 2, wherein the communication module of the data sending end includes at least one of a carrier network module, a wireless local area network module, a short-range wireless communication module, and a wired data communication module.
4. The method according to claim 1, wherein the communication module of the data sending end comprises a short-range wireless communication module; the method further comprises the following steps:
and generating a connection identification code according to the network address of the data receiving end and the module information of the short-distance wireless communication module, wherein the connection identification code is used for indicating the target equipment to establish communication connection with the short-distance wireless communication module according to the module information and establish communication connection with the data receiving end according to the network address so as to construct at least one data channel between the data sending end and the data receiving end.
5. The method of claim 1, further comprising:
when the data to be sent is cooperatively transmitted through the at least two data channels, the transmission efficiency of each data channel is obtained;
and adjusting the data packet transmission strategy of each data channel according to the transmission efficiency.
6. The method of claim 5, wherein obtaining the transmission efficiency of each data channel comprises:
acquiring transmission feedback data returned by the cooperative transmission of the data to be transmitted by each data channel;
and determining the transmission efficiency of each data channel based on the transmission feedback data corresponding to each data channel.
7. The method according to claim 6, wherein obtaining transmission feedback data returned by the cooperative transmission of the data to be transmitted by each data channel comprises:
carrying indication information in at least one data packet transmitted by each data channel, wherein the indication information is used for indicating transmission feedback data returned to the data channel;
and acquiring transmission feedback data returned by each data channel according to the indication information.
8. The method of claim 5, wherein adjusting the packet transmission policy of each data channel according to the transmission efficiency comprises:
selecting a preset number of data channels as target data channels according to the sequence of the transmission efficiency from high to low;
and dispatching the data packets which are not transmitted by other data channels except the target data channel to the target data channel for transmission.
9. The method of claim 1, further comprising:
acquiring transmission result information returned by the at least two data channels for data packet transmission;
and if the transmission result information indicates that the data packet is abnormally transmitted, adjusting the data packet transmission strategy of each data channel according to the transmission result information.
10. The method of claim 9, wherein adjusting the packet transmission policy of each data channel according to the transmission result information comprises:
determining a data channel with abnormal transmission according to the transmission result information;
and controlling the data channel with the abnormal transmission to resend the data packet with the abnormal transmission, or forwarding the data packet with the abnormal transmission to other data channels for transmission.
11. The method according to any one of claims 1 to 10, wherein a data stream identifier uniquely corresponding to the data to be sent is further configured in each data packet obtained by splitting the data to be sent, and the data stream identifier is used for distinguishing different data to be sent.
12. A method of data transmission, comprising:
a data receiving end receives data packets respectively transmitted by at least two data channels, wherein the data packets are obtained by a data transmitting end splitting data packets to be transmitted, the at least two data packets are divided into parts corresponding to the at least two data channels and respectively distributed to the data channels, the parts are cooperatively transmitted to the data receiving end by the data channels, and the data packets contain identification serial numbers for identifying the sequence of the data packets in the data to be transmitted;
and combining the received data packets according to the continuous identification serial numbers to obtain the data to be sent.
13. A data transmission apparatus, comprising:
the data channel acquisition module is used for acquiring at least two data channels between the data sending end and the data receiving end;
the data splitting module is used for splitting data to be sent into at least two data packets, wherein each data packet is provided with an identification serial number, and the identification serial number is used for indicating the sequence of the data packets in the data to be sent;
and the data transmission module is used for dividing the at least two data packets into parts corresponding to the data channels and respectively dispatching the parts to the data channels so as to cooperatively transmit the data to be transmitted through the at least two data channels.
14. A data transmission device, comprising:
a memory storing computer readable instructions;
a processor to read computer readable instructions stored by the memory to perform the method of any of claims 1-12.
15. A computer-readable storage medium having computer-readable instructions stored thereon, which, when executed by a processor of a computer, cause the computer to perform the method of any one of claims 1-12.
CN202010250769.4A 2020-04-01 2020-04-01 Data transmission method, device, equipment and computer readable storage medium Pending CN111586098A (en)

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