WO2023179538A1

WO2023179538A1 - Data transmission method and apparatus, electronic device, and storage medium

Info

Publication number: WO2023179538A1
Application number: PCT/CN2023/082501
Authority: WO
Inventors: 黄黎
Original assignee: 维沃移动通信有限公司
Priority date: 2022-03-23
Filing date: 2023-03-20
Publication date: 2023-09-28
Also published as: CN114710446A; CN114710446B

Abstract

The present application relates to the field of data transmission, and discloses a data transmission method and apparatus, an electronic device, and a storage medium. The method comprises: when data transmission is interrupted and it is determined that a packet loss event has occurred, generating a first message, the described first message comprising any one of the following items: a first amount of first information, and information corresponding to the described packet loss event; and when data transmission is recovered, transmitting the described first message and data recovery information to a transmitting end electronic device, wherein the described first information is used for indicating a lost data packet, the information corresponding to the described packet loss event comprises at least one of the following items: packet loss content information and packet loss event information, and the described packet loss content information comprises any one of the following items: a serial number (SN) range corresponding to the lost data packet, and the SN of the data packet that comes after the lost data packet.

Description

Data transmission methods, devices, electronic equipment and storage media

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210292432.9 filed in China on March 23, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to a data transmission method, device, electronic equipment and storage medium.

Background technique

In the process of network transmission, Transmission Control Protocol/Internet Protocol (TCPIP) is a commonly used data transmission protocol.

During the process of transmitting data through the TCP/IP protocol, the sending-end electronic device sends a data packet to the receiving-end electronic device. After the receiving-end electronic device successfully receives the data, it will send the sending instruction information of the subsequent data packet to the sending-end electronic device. If the network connection is interrupted, in order to ensure that the data transmission is as complete as possible, in related technologies, the protocol generally specifies that the data packets in transmission when the interruption occurs are discarded, and the newly generated data packets and previously unsuccessful transmissions are temporarily cached in the sending end electronic device. After the network connection is restored, the sending end electronic device sends the cached data packets to the receiving end electronic device, thereby minimizing packet loss.

However, since the network connection is interrupted, a large number of data packets are likely to be cached in the sending electronic device. Therefore, after the network connection is successful, when all the cached data packets are sent to the receiving electronic device, the receiving electronic device The device will continuously send a large amount of sending instruction information to the sending end electronic device, which will cause congestion in the sending end electronic device and ultimately reduce the data transmission rate.

Contents of the invention

The purpose of the embodiments of this application is to provide a data transmission method, device, electronic device and storage medium that can solve the problem of data transmission congestion in the sending end electronic device when the network connection is interrupted, which ultimately results in a reduction in data transmission rate.

In a first aspect, embodiments of the present application provide a data transmission method, which method includes: when data transmission is interrupted and a packet loss event is determined to occur, generating a first message, where the first message includes any of the following: A first amount of first information, information corresponding to the above-mentioned packet loss event; in the case of data transmission recovery, sending the above-mentioned first message and data recovery information to the sending end electronic device; wherein the above-mentioned first information is used to indicate lost data packet; the information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, after the loss of the data packet The packet SN number.

In a second aspect, embodiments of the present application provide a data transmission method. The method includes: receiving information corresponding to a packet loss event sent by an electronic device at the receiving end. The information corresponding to the packet loss event includes at least one of the following: Packet loss content letter information, packet loss event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, the SN number of the data packet after the lost data packet; receiving the data recovery information sent by the above-mentioned receiving end electronic device; When the third condition is met, the first mechanism is not triggered. The above-mentioned first mechanism includes: congestion avoidance mechanism.

In a third aspect, embodiments of the present application provide a data transmission device. The device includes: a generating module and a sending module; the generating module is configured to generate a first data transmission device when data transmission is interrupted and a packet loss event is determined to occur. message, the above-mentioned first message includes any of the following: a first quantity of first information, information corresponding to the above-mentioned packet loss event; the above-mentioned sending module is used to send the above-mentioned generated to the sending end electronic device when data transmission is restored. The above-mentioned first message and data recovery information generated by the module; wherein, the above-mentioned first information is used to indicate lost data packets; the information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss event information The packet content information includes any of the following: the sequence number SN range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet.

In the fourth aspect, embodiments of the present application provide a data transmission device. The above device includes: a receiving module and an execution module; the above receiving module is used to receive information corresponding to a packet loss event sent by the receiving end electronic device, The information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, the data after the lost data packet Packet SN number; the above-mentioned receiving module is also used to receive the data recovery information sent by the above-mentioned receiving end electronic device; the above-mentioned execution module is used to not trigger the first mechanism when the third condition is met. The above-mentioned first mechanism includes: congestion avoidance mechanism

In a fifth aspect, embodiments of the present application provide an electronic device. The electronic device includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. The program or instructions are When executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

In a sixth aspect, embodiments of the present application provide a readable storage medium on which programs or instructions are stored. When the programs or instructions are executed by a processor, the implementation is as described in the first aspect or the second aspect. steps of the method.

In a seventh aspect, embodiments of the present application provide a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the first aspect. Or the method described in the second aspect.

In the embodiment of the present application, when data transmission is interrupted and the receiving end electronic device determines that a packet loss event occurs, the receiving end electronic device will generate a first information including a first quantity (used to indicate lost data packets) or a lost packet. Afterwards, when data transmission is restored, the receiving end electronic device will send the above-mentioned first message and data recovery information to the sending end electronic device. In this way, when data transmission is interrupted, data transmission congestion can be avoided by changing the amount of first information sent to the sending end electronic device or directly sending information corresponding to the packet loss event to the sending end electronic device, thereby improving data transmission efficiency. .

Description of the drawings

Figure 1 is one of the flow diagrams of a data transmission method provided by an embodiment of the present application;

Figure 2 is a second schematic flowchart of a data transmission method provided by an embodiment of the present application;

Figure 3 is one of the structural schematic diagrams of a data transmission device provided by an embodiment of the present application;

Figure 4 is a second structural schematic diagram of a data transmission device provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

FIG. 6 is a second structural schematic diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first," "second," etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

The data transmission method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

This embodiment provides a data transmission method, as shown in Figure 1. The data transmission method is applied to the receiving end electronic device and includes the following steps 301 and 302:

Step 301: When data transmission is interrupted and a packet loss event is determined to occur, the receiving end electronic device generates a first message.

In this embodiment of the present application, the above-mentioned first message includes any one of the following: a first quantity of first information, and information corresponding to the above-mentioned packet loss event.

In this embodiment of the present application, the above-mentioned first information is used to indicate lost data packets; the information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following Item: Serial Number (SN) range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet.

In this embodiment of the present application, the above-mentioned packet loss event can be determined by the receiving end electronic device. Specifically, the method for the receiving end electronic device to determine the packet loss event can refer to the following content.

For example, when the first message is a first amount of first information, after subsequent data transmission is resumed, the receiving end electronic device will send the first amount of first information to the sending end device. Further, before the receiving end device generates the above-mentioned first quantity of first information, the transmission mode of the first information is: a target transmission mode, and the number of first information transmitted by the target transmission mode is different from the first quantity. Specifically, For details about this target transmission method, please refer to the following content.

It should be noted that the transmission method in the previous technical solution of this application, that is, the target transmission method, can be explained by the following Example 1. Example 1: Assume that the sending electronic device needs to transmit 4 data packets to the receiving electronic device. The four data packets have their own numbers, namely data packet 1, data packet 2, data packet 3, and data packet 4. Then, After the receiving end electronic device receives the data packet 1, it will send the instruction information "Please send data packet 2" to the sending end electronic device. The instruction information is the first information mentioned above in this application. After the data transmission is interrupted, after the receiving end electronic device receives data packet 1, it will still send the instruction message "Please send data packet 2" to the sending end electronic device. However, due to the interruption of data transmission, the sending end electronic device Data packet 4 is sent to the receiving end electronic device. Data packet 2 and data packet 3 that should have been sent became lost data packets due to the interruption of data transmission. In this case, the receiving end electronic device will continue to send "Please The instruction information of "Send Data Packet 2" is called the first information at this time. Correspondingly, the transmission method of continuously sending the instruction information of "Please send Data Packet 2" is: sending the first amount of first information. The transmission method previously used.

Furthermore, in the above example 1, if the instruction information "Please send data packet 2" is sent continuously, when the instruction information (ie, the first information) of "Please send data packet 2" reaches a predetermined number of times, , will trigger the congestion avoidance mechanism of the sending end, which will lead to data congestion and paralysis of the sending end's electronic equipment, making it impossible to transmit data information normally.

In one embodiment, the first information may be a duplicate Acknowledge character (duplicate ACK). Further, after the receiving end electronic device sends a duplicate ACK, correspondingly, the sending end electronic device will restore the same number of TCP serial numbers (TCP Serial Number TCP SN).

For example, the above-mentioned first quantity may be preset in advance or may be user-defined.

Further, the above-mentioned first number should be less than a predetermined number of times that causes the sending end electronic device to trigger the congestion avoidance mechanism.

Example 2: If the predetermined number of times that the sending end electronic device triggers the congestion avoidance mechanism is 3 times, that is, the sending end electronic device receives the instruction information (i.e., the first information) of "Please send data packet 2" sent by the above receiving end electronic device reaches 3 times. times when the sending end electronic device triggers the congestion avoidance mechanism, the first number may be set to 2 times. That is, when data transmission is interrupted and the receiving end electronic device cannot receive the data packet indicated by the first information, the sending quantity of the first information is updated to the first number, and it is set that after the data transmission is resumed, the receiving end electronic device is at most The above-mentioned first information is transmitted twice, and the "transmit the above-mentioned first information at most 2 times" is the first quantity of first information.

For example, when the first message includes information corresponding to the packet loss event, the information corresponding to the packet loss event is used to determine and inform the sending end electronic device that a packet loss event has occurred (i.e., packet loss event information), and/or that the packet loss The number information of the corresponding lost data packet in the event (that is, the packet loss content information), specifically, includes the sequence number SN range corresponding to the above-mentioned lost data packet, and the SN number of the data packet after the lost data packet.

Example 3: After confirming that a packet loss event occurs, the receiving end electronic device will generate packet loss event information and/or packet loss content information used to indicate the packet loss event.

Step 302: In the case of data transmission recovery, the receiving end electronic device sends the above-mentioned first message and data recovery information to the sending end electronic device.

For example, the above data recovery information is used to indicate that data transmission between the receiving end electronic device and the sending end electronic device returns to normal.

Further, the data recovery information can be used to inform the sending end electronic device to start a normal data transmission process.

In the embodiment of the present application, the above-mentioned recovery of data transmission requires self-confirmation by the receiving end electronic device. Specifically, the receiving end electronic device performs confirmation through an internal module. For the internal confirmation method of the receiving end electronic device, please refer to the following content.

It should be noted that in the receiving electronic device, different modules have different functions. In this embodiment of the present application, the receiving end electronic device includes a first module and a second module, wherein the first module is used to determine that a packet loss event occurs, the second module is used to update the data transmission protocol, and the data transmission protocol is used to Controls how data is transmitted between the receiving electronic device and the sending electronic device.

In an example, the above-mentioned first module may be a 5G modem module (5G modem module), and the above-mentioned second module may be a TCP protocol stack module.

For example, when the receiving end electronic device sends data recovery information to the sending end electronic device, the specific sending process is to send the data recovery information to the sending end electronic device through the first module.

It should be noted that the above-mentioned data transmission recovery status is confirmed by the first module of the receiving end electronic device, and the first module generates data recovery information and sends the information to the sending end electronic device.

In this way, after the data transmission is restored, the receiving end electronic device sends the data recovery information to the sending end electronic device, so that the sending end electronic device can perform data transmission in a timely manner, thereby improving the data transmission efficiency after the network interruption occurs.

Example 4: Combined with the above Example 2, when the data transmission is restored and the receiving end electronic device cannot receive the data packet indicated by the first information, the above first information (i.e. the above first number of the first information) is transmitted to the sending end electronic device twice. first information) and data recovery information.

Example 5: Combined with the above Example 3, when data transmission is restored and the receiving end electronic device cannot receive the data packet indicated by the first information, packet loss event information, packet loss content information and data recovery information are transmitted to the sending end electronic device. .

In this embodiment of the present application, in the packet loss content information, the sequence number SN range corresponding to the lost data packet can be calculated by the receiving end electronic device.

In one example, the sequence number SN range corresponding to the lost data packet may be calculated by the second module of the receiving end electronic device.

Example 6: Assume that the sending end electronic device needs to transmit 4 data packets to the receiving end electronic device. The four data packets have their own numbers, namely data packet 1, data packet 2, data packet 3, and data packet 4. Then, When the receiving end electronic device receives data packet 1, it will send the instruction message "Please send data packet 2" to the sending end electronic device. However, after the data transmission interruption occurs, the sending end electronic device sends a message to the receiving end electronic device. The data packet is data packet 4, then according to the SN encoding information of the data packet, the TCP protocol stack module of the receiving end electronic device will calculate that the SN range corresponding to the lost data packet is: the second data packet and the third data packet, The corresponding lost data packets are data packet 2 and data packet 3.

Further, the second module of the receiving end electronic device may be used to generate second packet loss information corresponding to the packet loss event, and send the second packet loss information to the sending end electronic device.

In one embodiment, when the packet loss content information includes the SN range of the serial number corresponding to the lost data packet, it is equivalent to the receiving end electronic device directly informing the sending end electronic device of the SN number corresponding to the lost data packet.

Example 7: Combined with the above Example 6, after the TCP protocol stack module of the receiving end electronic device calculates the SN range corresponding to the lost data packet, the TCP protocol stack module of the receiving end electronic device (i.e., the above-mentioned second module) reports to the sending end electronic device. If the device sends the SN range corresponding to the above-mentioned data packet 2 and data packet 3 (that is, the lost data packet), then the subsequent sending end will send data packet 2 and data packet 3 to the receiving end electronic device.

In one embodiment, when the above packet loss content information includes the SN number after the lost data packet, the receiving end electronic device informs the sending end electronic device that the data packets corresponding to the SN number before the SN number after the lost data packet are all Lost packets.

Example 8: Combined with the above Example 7, after the TCP protocol stack module of the receiving end electronic device calculates the SN range corresponding to the lost data packet, the TCP protocol stack module of the receiving end electronic device (i.e., the above-mentioned second module) reports to the sending end electronic device. If the device sends the SN number of data packet 4 (that is, the SN number after the above-mentioned lost data packet), then the subsequent sending end will send data packet 1, data packet 2, and data packet 3 to the receiving end electronic device.

In this way, when data transmission is interrupted and data packets are lost, the receiving end electronic device can send the packet loss information to the sending end electronic device and inform the sending end electronic device of the content that needs to be retransmitted in the future, thereby saving transmission resources. And improve the efficiency of subsequent data transmission.

In the embodiment of the present application, when data transmission is interrupted and the receiving end electronic device determines that a packet loss event occurs, the receiving end electronic device will generate a first information including a first quantity (used to indicate lost data packets) or a lost packet. package event pair Afterwards, when data transmission is restored, the receiving end electronic device will send the above-mentioned first message and data recovery information to the sending end electronic device. In this way, when data transmission is interrupted, data transmission congestion can be avoided by changing the amount of first information sent to the sending end electronic device or directly sending information corresponding to the packet loss event to the sending end electronic device, thereby improving data transmission efficiency. .

Optionally, in this embodiment of the present application, when the above-mentioned first message is a first amount of first information, in the above-mentioned step 302, when the above-mentioned first message and data recovery information are sent to the sending end electronic device, in this The data transmission method provided by the application embodiment may include the following step A:

Step A: The receiving end electronic device sends the first amount of first information and the above data recovery information to the sending end electronic device within a first predetermined time period.

Exemplarily, the first predetermined time period includes any of the following: the time period agreed between the receiving end electronic device and the sending end electronic device, from the interruption of data transmission to the receiving end electronic device receiving the lost data packet. duration.

Optionally, in this embodiment of the present application, in the case where the above-mentioned first message includes a first amount of first information, before sending the above-mentioned first message and data recovery information to the sending end electronic device in step 302, The data transmission method provided in the embodiment of this application may include step B:

Step B: The receiving end electronic device determines the transmission method corresponding to the first quantity of first information.

Exemplarily, the above-mentioned transmission method includes any of the following: when data transmission is resumed and the reception time interval of the received N data packets is less than a predetermined time interval, sending the above-mentioned third packet within the above-mentioned first predetermined time period. A quantity of first information, N is a positive integer; within the above-mentioned first predetermined time period, suspend sending the above-mentioned first information after sending the above-mentioned first quantity of first information; within the above-mentioned first predetermined time period, send the above-mentioned first information at predetermined intervals. A quantity of first information.

The above three transmission methods are explained as follows:

The first transmission method is: when data transmission is restored and the reception time interval of the received N data packets is less than a predetermined time interval, sending the first amount of first information within the first predetermined time period, N is a positive integer. Specifically, when data transmission is restored, the receiving end electronic device first obtains the time interval between N data packets sent by the sending end electronic device, and associates the time interval between the N data packets with the data transmission interruption Comparing the time intervals (i.e. predetermined time intervals) between previously received data packets sent by the sending end electronic device, the time interval between N data packets is smaller than the time interval between the data packets sent by the sending end electronic device before the data transmission terminal. In the case of a time interval, the receiving end electronic device suspends sending the first information corresponding to the N data packets within the first predetermined time period or only sends the first amount of the first information until the time interval corresponding to the received data packets returns to The time interval before data transmission is interrupted (i.e., the scheduled time interval). Among them, the N data packets are the first data packets received by the receiving end electronic device when data transmission is restored.

It can be understood that when the data transmission is smooth and stable, the time interval between the receiving end electronic device receiving the data packet sent by the sending end electronic device is also stable. For example, the time interval for receiving the data packet is 1.1 seconds - 2 seconds; in the case of reconnection after data interruption, the sending end electronic device will quickly send the cached data packet to the receiving end electronic device. At this time, the time interval for the receiving end electronic device to receive the data packet is likely to be greatly increased. Decrease, for example, from a time interval of 1.1 seconds - 2 seconds to 0.2 seconds - 0.5 seconds

The second transmission method is: sending the first quantity of first information at predetermined intervals within the first predetermined time period. Specifically, within the above-mentioned first predetermined time period, the sending of the above-mentioned first information is suspended after the above-mentioned first quantity of first information is sent. Specifically, when data transmission is resumed, the receiving end electronic device, after sending the first amount of first information within the first predetermined time period, suspends sending the first information, and then resumes using the target within the first predetermined time period. The first message is sent in the transmission mode.

The third transmission method is: sending the first quantity of first information at predetermined intervals within the first predetermined time period. Specifically, when data transmission is restored, the receiving end electronic device increases the sending interval of sending the first information within the first predetermined time period, that is, sends the first amount of the first information at the predetermined interval. Wherein, the above-mentioned predetermined interval can be determined based on the first predetermined duration and the first quantity. In one embodiment, the predetermined interval = the first predetermined duration/the first quantity. The above-mentioned predetermined interval can also be determined randomly, for example, the receiving end electronic device After receiving multiple data packets continuously, the first information is sent once to the sending end electronic device.

Optionally, in this embodiment of the present application, in the case where the above-mentioned first message includes the above-mentioned first quantity of first information, after the above-mentioned step 302, the following step C may be included in the data transmission method provided by the embodiment of the present application. :

Step C: If the first condition is met, update the transmission mode of the first message to the target transmission mode.

Illustratively, the target transmission method is the transmission method used before sending the first message.

Illustratively, the first condition includes any of the following: the duration of sending the first message reaches a first predetermined duration, and the receiving electronic device receives the missing data packet.

In this embodiment of the present application, the above-mentioned target transmission method is: a transmission method of transmitting the first information before the first quantity of first information. For example, combined with the above content, the target transmission method may be: sending indication information (ie, first information) greater than or equal to a predetermined number of times "Please send data packet 2".

In one embodiment, when the first condition includes that the duration of sending the first message reaches a first predetermined duration, the first predetermined duration may be agreed in advance by the receiving end electronic device and the sending end electronic device, or Can be customized for users.

Example 9: Combining the above examples 2 and 3, if the first predetermined duration is 3 seconds, then the receiving end electronic device updates the transmission method of the first information to the transmission method used before sending the first message, that is, transmits the first message. After the duration of a message reaches 3 seconds, the transmission mode of the first message is updated to the target transmission mode.

In one example, if the first condition includes the receiving end electronic device receiving the missing data packet, the receiving end electronic device will update the transmission mode after receiving the missing data packet indicated by the first information.

Example 10: Combining the above examples 2 and 3, after the receiving end electronic device receives data packet 2 and data packet 3, it updates the transmission method of the first information (that is, transmits the first amount of first information) back to the target transmission method. .

In this way, when the first condition is met (the duration of sending the first message reaches the first predetermined duration or the receiving electronic device receives the lost data packet), the transmission mode of the first information is updated to the target transmission mode. In this way, when data transmission is interrupted, data transmission congestion can be avoided by changing the transmission method of the first information, thereby improving data transmission efficiency.

Optionally, in this embodiment of the present application, when the above-mentioned first message is a first amount of first information, in the above-mentioned step 301, the data transmission method provided by the embodiment of the present application may include the following steps D1 to steps D2:

Step D1: When the first module in the receiving end electronic device determines that a packet loss event occurs, generate the first packet loss information corresponding to the packet loss event, and transmit the first packet loss information to the receiving end electronic device. The second module in the device.

Further, based on step D1, a first message is generated, including:

Step D2: When the above-mentioned second module receives the above-mentioned first packet loss information, the above-mentioned second module will generate Become the first news.

Illustratively, the above-mentioned first packet loss information includes packet loss event information.

For example, after the second module receives the packet loss event information, it can be determined that a packet loss event has occurred.

Further, when a packet loss event is determined, it can be determined that a data transmission interruption has occurred.

Example 11: When the first module is a 5G modem module and the second module is a TCP protocol stack module, after determining that a packet loss event occurs, the 5G modem module will generate the first packet loss information used to characterize the packet loss event. And send the first packet loss information to the TCP protocol stack module. The TCP protocol stack module will update the transmission method of duplicate ACK (that is, the first information). Specifically, the TCP protocol stack module will control the number of duplicate ACKs sent.

In this way, through the information transmission of the internal module of the receiving end electronic device, packet loss events and data transmission interruption events can be discovered more quickly and accurately, thereby detecting lost data packets as quickly as possible, thus ensuring that the data transmission efficiency is improved while reducing information loss.

Optionally, in this embodiment of the present application, when the receiving electronic device determines that a packet loss event occurs in step 301, the data transmission method provided by the embodiment of the present application may include the following steps E1 and step E2:

Step E1: The above-mentioned receiving end electronic device detects the target parameters.

Step E2: When the target parameter satisfies the second condition, the receiving electronic device determines that the packet loss event occurs.

Exemplarily, the above target parameters include at least one of the following: data radio bearer DRB, layer 1 block error rate L1 BLER (Layer1, Block Error Rate), wireless link control layer acknowledgment transmission mode sequence number (Layer2 Acknowledge Mode Sequence Number , L2 AM SN).

Illustratively, the above-mentioned second condition includes at least one of the following: the above-mentioned DRB is in a deleted state; the value corresponding to the above-mentioned L1 BLER is higher than the first threshold and cannot be restored through a predetermined mechanism; the above-mentioned target data corresponding to the L2 AM SN is in a discarded state.

In one example, the execution process of detecting the target parameter by the receiving end electronic device may be completed by the first module of the receiving end electronic device. For example: 5G modem module.

For example, the deletion method corresponding to the above-mentioned data radio bearer (Data Radio Bearer, DRB) in the deleted state can be: the receiving end electronic device directly deletes it through the reconfiguration message, and also includes other deletion methods, such as radio resource control reconstruction ( RRC establishment) failed, resulting in the deletion of the DRB.

For example, the above-mentioned first threshold may be preset.

Illustratively, the above-mentioned predetermined mechanism may be preset. In one example, the above-mentioned predetermined mechanism may be the retransmission mechanism of layer 2, that is, the L2 retransmission mechanism. In one example, the above-mentioned L2 retransmission mechanism Can be unacknowledged transmission mode (Unacknowledge Mode, UM).

For example, the target data corresponding to the above-mentioned L2 AM SN is in a discarded state means: the L2 AM SN is in an out-of-order state and the wireless link layer control protocol (Radio Link Control, RLC) re-establishment occurs. During the re-establishment process The target data is discarded, causing the target data to be in a discarded state.

In this way, the receiving end electronic device can determine the occurrence of a packet loss event through the above multiple methods, and then determine the interruption of data transmission, thereby triggering subsequent relevant data transmission operation steps in a timely manner to ensure efficient and smooth data transmission.

Optionally, in this embodiment of the present application, before the above step 302, the data transmission method provided by the embodiment of the present application may include the following step F:

Step F: Send through the first module of the above-mentioned receiving end electronic device to the second module of the above-mentioned receiving end electronic device Data recovery information.

It can be understood that in the receiving end electronic device, the first module of the receiving end electronic device is used for data recovery status and generates data recovery information. After that, the first module sends the data recovery information to the second module, thereby triggering The second module sends a first amount of first information.

In this way, in the embodiment of the present application, the information between the first module and the second module of the receiving end electronic device is unobstructed, reducing the impact of reduced data transmission efficiency caused by network transmission interruption events, and improving data transmission efficiency.

This embodiment provides another data transmission method, as shown in Figure 2, applied to the sending end electronic device. The data transmission method includes the following steps 401 to 403:

Step 401: The above-mentioned sending-end electronic device receives information corresponding to the packet loss event sent by the receiving-end electronic device.

In the embodiment of the present invention, the information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any one of the following: the sequence number SN range corresponding to the lost data packet, The packet SN number after the lost packet.

In this embodiment of the present application, the description of the information corresponding to the packet loss event, the packet loss content information, and the packet loss event information may refer to the foregoing description, and will not be described again here.

Step 402: The sending-end electronic device receives the data recovery information sent by the receiving-end electronic device.

In this embodiment of the present application, reference may be made to the foregoing description for the above data recovery information, which will not be described again here.

Step 403: The above-mentioned sending-end electronic device does not trigger the first mechanism when the third condition is met.

In this embodiment of the present application, the above-mentioned first mechanism includes: a congestion avoidance mechanism.

In the embodiment of the present application, the above third condition may be any of the following: the sending end electronic device receives the second packet loss information within the second predetermined time period, the sending end electronic device receives the lost data packet within the SN range. Before sending the corresponding instruction information, specifically, you can refer to the following content.

It can be understood that before the technical solution of this application, the congestion avoidance mechanism will be triggered after the sending end electronic device receives multiple first messages within a unit time. This congestion avoidance mechanism causes data transfer rates to decrease.

In the embodiment of the present application, when the sending end electronic device receives the information corresponding to the packet loss event (packet loss content information and/or packet loss event information) sent by the receiving end electronic device, it receives the information corresponding to the packet loss event sent by the receiving end electronic device. After the data recovers information, the congestion avoidance mechanism will not be triggered if the third condition is met. In this way, when data transmission is interrupted, a reduction in the data transmission rate can be avoided, and the previous data transmission rate can be maintained within a certain range, thereby improving data transmission efficiency.

Optionally, in this embodiment of the present application, when the information corresponding to the above-mentioned packet loss event is the above-mentioned packet loss content information, in the above-mentioned step 403, the data transmission method provided by the embodiment of the present application may include the following step G:

Step G: Based on the above-mentioned packet loss content information, the sending-end electronic device does not trigger the first mechanism when receiving the transmission instruction information corresponding to the lost data packet within the above-mentioned SN range.

For example, the transmission instruction information corresponding to the lost data packets in the SN range may include: the data packets in the SN range corresponding to the lost data packets, and the data packets corresponding to the SN numbers before the SN numbers after the lost data packets.

It can be understood that the sending instruction information corresponding to the lost data packets within the above SN range can be used to inform the sending end electronic device not to trigger the first mechanism when receiving the sending instruction information.

Example 12: Assume that the sending end electronic device needs to transmit 4 data packets to the receiving end electronic device. The four data packets have their own numbers, namely data packet 1, data packet 2, data packet 3, and data packet 4. Then, After the receiving end electronic device receives the data packet 1, it will send the instruction message "Please send data packet 2" to the sending end electronic device (i.e., the above-mentioned sending end electronic device Send instruction information), the instruction information is the first information mentioned above in this application. After the data transmission is interrupted, after the receiving end electronic device receives data packet 1, it will still send the instruction message "Please send data packet 2" to the sending end electronic device. However, due to the interruption of data transmission, the sending end electronic device Data packet 4 is sent to the receiving end electronic device. Data packet 2 and data packet 3 that should have been sent became lost data packets due to the interruption of data transmission. In this case, the receiving end electronic device will continue to send "Please "Send Data Packet 2" instruction information, the sending end electronic device will also continuously receive the instruction information "Please send Data Packet 2".

Further, after the receiving end electronic device determines that a packet loss event occurs, the packet loss information including the packet loss event information and the packet loss content information is sent to the sending end electronic device. The packet loss content information includes: data packet 2 and data The SN range corresponding to packet 3, data packet 2 and the SN number after data packet 3. Then, after receiving the packet loss information, the sending end electronic device will not trigger the congestion avoidance mechanism when receiving the above-mentioned "Please send data packet 2" instruction information.

In this way, the sending end electronic device can determine in advance which specific data packets are lost data packets through the packet loss content information, and then when receiving the transmission instruction information instructing it to send the lost data packets, the congestion avoidance mechanism will not be triggered, thereby avoiding Data transmission reduction probability in case of data transmission interruption.

Optionally, in this embodiment of the present application, when the information corresponding to the above-mentioned packet loss event is the above-mentioned packet loss event information, in the above-mentioned step 403, the data transmission method provided by the embodiment of the present application may include the following steps H1 and steps H2：

Step H1: The sending end electronic device obtains the second predetermined time period.

Step H2: The sending end electronic device does not trigger the first mechanism within the above-mentioned second predetermined time period.

Illustratively, the second predetermined duration includes any of the following: the duration agreed upon by the sending electronic device and the receiving electronic device, and the duration calculated by the sending electronic device based on the packet loss information.

It should be noted that in steps H1 and H2, there is no need to receive the packet loss content information sent by the receiving end electronic device.

Example 13: Combined with the above Example 12, when the sending end electronic device also continuously receives the instruction information "Please send data packet 2", the receiving end electronic device sends the packet loss information including the packet loss event information. To the sending end electronic device, the packet loss event information is used to inform the sending end electronic device that a packet loss event currently occurs. Then, after receiving the packet loss information, the sending end electronic device will not trigger the congestion avoidance mechanism within the second predetermined time period.

In this way, the sending end electronic device can confirm the packet loss event as early as possible through the packet loss event information, and the congestion avoidance mechanism will not be triggered within the second predetermined period of time, thereby avoiding the probability of data transmission being reduced when data transmission is interrupted.

Optionally, in this embodiment of the present application, when the second predetermined duration is the duration calculated by the sending end electronic device based on the packet loss information, in the above step H1, the data transmission method provided by the embodiment of the present application can Includes the following steps I1 and I2:

Step I1: The above-mentioned sending-end electronic device calculates the number of lost data packets based on the first information.

Step I2: The sending-end electronic device determines the second predetermined duration based on the number of lost data packets and the transmission information of the lost data packets.

Exemplarily, the above-mentioned first information is the sending instruction information corresponding to the packet loss information sent by the receiving end electronic device to the sending end electronic device.

For example, the above first information is used to indicate lost data packets.

Exemplarily, the transmission information of the lost data packet includes any of the following: the transmission rate of the lost data packet, and the time it takes to receive the acknowledgment character ACK information corresponding to the lost data packet.

It can be understood that if the sending end electronic device does not receive the sending instruction information corresponding to the sent data packet, it will not The data packets on the sending side of the electronic device are deleted. For example, combined with the above example 1, after the electronic device at the sending end sends data packet 1, both data packet 2 and data packet 3 sent in the middle are lost. The receiving end receives data packet 4. For the sending end, it does not receive the data packet. The sending instruction information "Please send data packet 3" corresponding to data packet 2 and the sending instruction information "Please send data packet 4" corresponding to data packet 3 are received. Therefore, the sending end electronic device caches data packet 2 and data packet 3. information until the sending instruction information corresponding to the above-mentioned data packet 2 and data packet 3 is received.

In one embodiment, when the transmission information of the lost data packet is the transmission rate of the lost data packet, the sending end electronic device can confirm the retransmission according to the data transmission rate before the packet loss event starts, combined with the number of lost packets. The time required for these lost packets.

Example 14: Combined with the above Example 12, when the sending end electronic device continuously receives the instruction information "Please send data packet 2", after receiving the data recovery information sent by the receiving end electronic device, the sending end electronic device The number of data packets transmitted from data packet 2 to data packet 4 is calculated, and combined with the data packet transmission rate, the time required to transmit the above-mentioned data packet 2 to data packet 4 is calculated (ie, the above-mentioned second predetermined time length).

In one embodiment, when the transmission information of the lost data packet is the time it takes to receive the ACK information corresponding to the lost data packet, the sending end electronic device can, based on the number of lost data packets and the time required to receive the ACK information, That is, the round-trip time (RTT) determines the second scheduled time.

It can be understood that the above ACK information may be the above first information.

Example 15: Combined with the above example 12, in the case where the sending end electronic device also continuously receives the instruction message "Please send data packet 2", the sending end electronic device continuously receives the "Please send data packet 2" ” instruction information, after receiving the data recovery information sent by the receiving end electronic device, the sending end electronic device will calculate the transmission data packet 2 to data packet 4 number of data packets, and then calculate the ACK information corresponding to the data packets received from data packet 2 to data packet 4, that is, the transmission instruction information of "Please send data packet 3", the transmission instruction information of "Please send data packet 4", " The time required for the transmission instruction information of "Please send data packet 5" is calculated to calculate the time required for transmitting the above-mentioned data packet 2 to data packet 4 (ie, the above-mentioned second predetermined time length).

In this way, the sending end electronic device can determine the second predetermined duration through calculation based on the known information, thereby more accurately determining the duration that does not trigger the first mechanism, thereby improving the data transmission efficiency while ensuring the reliability of the data transmission system. .

It should be noted that, for the data transmission method provided by the embodiments of the present application, the execution subject may be a data transmission device, or a control module in the data transmission device for executing the data transmission method. In the embodiment of the present application, the method of performing data transmission by the data transmission device is taken as an example to describe the data transmission device provided by the embodiment of the present application.

FIG. 3 is a schematic structural diagram of a first possible implementation of the data transmission device provided by the embodiment of the present application. As shown in Figure 3, the above-mentioned data transmission device 600 includes: the above-mentioned generation module 601, used to generate a first message when data transmission is interrupted and a packet loss event is determined to occur. The above-mentioned first message includes any of the following: The first quantity of first information, the information corresponding to the above-mentioned packet loss event; the above-mentioned sending module 602 is used to send the above-mentioned first message generated by the above-mentioned generating module 601 and data recovery to the sending-end electronic device when data transmission is restored. Information; wherein, the above-mentioned first information is used to indicate lost data packets; the information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following: loss The sequence number SN range corresponding to the data packet, and the SN number of the data packet after the data packet is lost.

In the data transmission apparatus provided by the embodiment of the present application, when data transmission is interrupted and the receiving end electronic device determines that a packet loss event occurs, the receiving end electronic device will generate a first information including a first amount (used to indicate the loss). number packet) or information corresponding to the packet loss event. Later, when data transmission is restored, the receiving end electronic device will send the above-mentioned first message and data recovery information to the sending end electronic device. In this way, when data transmission is interrupted, data transmission congestion can be avoided by changing the amount of first information sent to the sending end electronic device or directly sending information corresponding to the packet loss event to the sending end electronic device, thereby improving data transmission efficiency. .

Optionally, in this embodiment of the present application, when the first message is a first amount of first information, the sending module 602 is configured to send the above-mentioned message to the sending end electronic device within a first predetermined time period. A first quantity of first information and the above-mentioned data recovery information; wherein the above-mentioned first predetermined time period includes any of the following: the time period agreed upon by the above-mentioned receiving end electronic device and the above-mentioned sending end electronic device, from the interruption of data transmission to the above-mentioned receiving end The length of time between electronic devices receiving the aforementioned lost packets.

Optionally, in this embodiment of the present application, in the case where the above-mentioned first message includes a first quantity of first information, the above-mentioned device 600 further includes: a determination module 603; the above-mentioned determination module 603 is used to determine the above-mentioned first quantity. The transmission method corresponding to the first information; wherein the above-mentioned transmission method includes any of the following: when data transmission is restored and the reception time interval of the received N data packets is less than the predetermined time interval, in the above-mentioned third Send the above-mentioned first quantity of first information within a predetermined time period, N is a positive integer; within the above-mentioned first predetermined time period, suspend sending the above-mentioned first information after sending the above-mentioned first quantity of first information; within the above-mentioned first predetermined time period The above-mentioned first quantity of first information is sent at predetermined intervals within a certain period of time.

Optionally, in this embodiment of the present application, in the case where the above-mentioned first message includes the above-mentioned first quantity of first information, the above-mentioned device 600 further includes an update module 604; In the case of , update the transmission method of the first message generated by the generation module to the target transmission method; wherein the target transmission method is the transmission method used before sending the first message; the first condition includes any of the following Item: The duration of sending the first message reaches the first predetermined duration, and the above-mentioned receiving end electronic device receives the above-mentioned lost data packet.

Optionally, in this embodiment of the present application, the above-mentioned device 600 also includes a detection module 605 and a determination module 603; the above-mentioned detection module 605 is used to detect the target parameters; the above-mentioned determination module 603 is used to detect the above-mentioned target in the above-mentioned detection module. When the parameters meet the second condition, the above-mentioned receiving end electronic device determines that the above-mentioned packet loss event occurs; wherein, the above-mentioned target parameters include at least one of the following: data wireless bearer DRB, layer 1 block error rate L1 BLER, wireless link control layer The confirmed transmission mode sequence number L2 AM SN; the above second condition includes at least one of the following: the above DRB is in a deleted state; the value corresponding to the above L1 BLER is higher than the first threshold and cannot be restored through the predetermined mechanism; the above L2 AM SN corresponds to The target data is in a discarded state.

FIG. 4 is a schematic structural diagram of a second possible implementation of the data transmission device provided by the embodiment of the present application. As shown in Figure 4, the above-mentioned data transmission device 700 includes: a receiving module 701 and an execution module 702; the above-mentioned receiving module 701 is used to receive information corresponding to a packet loss event sent by the receiving end electronic device. The information corresponding to the above-mentioned packet loss event includes At least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, the SN number of the data packet after the lost data packet; the above-mentioned receiving module 701 , and is also used to receive data recovery information sent by the receiving end electronic device; the above-mentioned execution module 702 is used to not trigger the first mechanism when the third condition is met. The above-mentioned first mechanism includes: a congestion avoidance mechanism.

In the data transmission device provided by the embodiment of the present application, the data transmission device receives the information corresponding to the packet loss event (packet loss content information and/or packet loss event information) sent by the receiving end electronic device, and receives the information corresponding to the packet loss event sent by the receiving end electronic device. After the data recovery information is met, the congestion avoidance mechanism will not be triggered if the third condition is met. In this way, when data transmission is interrupted, the data transmission rate can be avoided and the previous data transmission speed can be maintained within a certain range. rate, thereby improving data transmission efficiency.

Optionally, in this embodiment of the present application, when the information corresponding to the packet loss event is the packet loss content information, the execution module 702 is specifically configured to, according to the packet loss content information, receive the SN range When the indication information corresponding to the lost data packet is sent, the first mechanism is not triggered.

Optionally, in this embodiment of the present application, when the information corresponding to the above-mentioned packet loss event is the above-mentioned packet loss event information, the above-mentioned device 700 further includes an acquisition module 703; the above-mentioned acquisition module 703 is used to acquire the second predetermined duration. , the above-mentioned second predetermined duration includes any of the following: the duration agreed upon by the above-mentioned sending-end electronic device and the above-mentioned receiving-end electronic device, the duration calculated by the above-mentioned sending-end electronic device based on the above-mentioned packet loss information; the above-mentioned execution module 702 is specifically used for Within the second predetermined time period obtained by the above acquisition module, the first mechanism is not triggered.

Optionally, in this embodiment of the present application, when the second predetermined duration is the duration calculated by the sending end electronic device based on the packet loss information, the above device 700 further includes: a calculation module 704 and a determination module 705; The calculation module 704 is used to calculate the number of lost data packets based on the first information. The first information is the transmission instruction information corresponding to the packet loss information sent by the receiving end electronic device to the sending end electronic device. The above first information is used to indicate Lost data packets; the above-mentioned determination module 705 is used to determine the above-mentioned second predetermined duration based on the number of the above-mentioned lost data packets calculated by the above-mentioned calculation module 704 and the transmission information of the above-mentioned lost data packets. The above-mentioned transmission information of the lost data packets includes any of the following: One item: the transmission rate of the above-mentioned lost data packet, and the time taken to receive the acknowledgment character ACK information corresponding to the above-mentioned lost data packet.

It should be noted that, as shown in Figure 3, the modules that must be included in the data transmission device 600 are represented by solid-line boxes, such as the generation module 601; the modules that may or may not be included in the data transmission device 600 are represented by dotted-line boxes, such as Detection module 604; As shown in Figure 4, the modules that must be included in the data transmission device 700 are represented by solid line boxes, such as the receiving module 701; the modules that may or may not be included in the data transmission device 700 are represented by dotted line boxes, such as the calculation Module 704.

The data transmission device in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in the terminal. The device may be a mobile electronic device or a non-mobile electronic device. For example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a handheld computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (personal digital assistant). assistant, PDA), etc., non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computers, PC), televisions (television, TV), teller machines or self-service machines, etc., this application The examples are not specifically limited.

The data transmission device in the embodiment of the present application may be a device with an operating system. The operating system can be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of this application.

The data transmission device provided by the embodiments of the present application can implement various processes implemented by the method embodiments in Figures 1 and 2. To avoid duplication, they will not be described again here.

Optionally, as shown in Figure 5, this embodiment of the present application also provides an electronic device 800, including a processor 801, a memory 802, and programs or instructions stored on the memory 802 and executable on the processor 801. When the program or instruction is executed by the processor 801, each process of the above-mentioned data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, the details will not be described here.

It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile electronic devices and non-mobile electronic devices.

FIG. 6 is a schematic diagram of the hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, etc. part.

Those skilled in the art can understand that the electronic device 100 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 110 through a power management system, thereby managing charging, discharging, and function through the power management system. Consumption management and other functions. The structure of the electronic device shown in Figure 5 does not constitute a limitation on the electronic device. The electronic device may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be described again here. .

Wherein, in the first electronic device, the processor 110 generates a first message when data transmission is interrupted and a packet loss event is determined to occur. The first message includes any of the following: a first amount of first information , information corresponding to the above-mentioned packet loss event; the radio frequency unit 101 is used to send the above-mentioned first message and data recovery information to the sending end electronic device when data transmission is restored; wherein the above-mentioned first information is used to indicate the loss of the data packet ; The information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, the sequence number after the lost data packet Packet SN number.

In the first electronic device provided by the embodiment of the present application, when data transmission is interrupted and the receiving end electronic device determines that a packet loss event occurs, the receiving end electronic device will generate a first information including a first amount (for indicating (Lost data packet) or information corresponding to the packet loss event. Later, when data transmission is restored, the receiving end electronic device will send the above-mentioned first message and data recovery information to the sending end electronic device. In this way, when data transmission is interrupted, data transmission congestion can be avoided by changing the amount of first information sent to the sending end electronic device or directly sending information corresponding to the packet loss event to the sending end electronic device, thereby improving data transmission efficiency. .

Optionally, when the first message is a first amount of first information, the processor 110 is specifically configured to send the first amount of first information to the sending end electronic device within a first predetermined time period. and the above-mentioned data recovery information; wherein, the above-mentioned first predetermined time period includes any of the following: the time period agreed between the above-mentioned receiving end electronic device and the above-mentioned sending end electronic device, from the interruption of data transmission to the above-mentioned receiving end electronic device receiving the above-mentioned lost data The length of time between packets.

Optionally, in the case where the first message includes a first amount of first information, the processor 110 is further configured to determine a transmission method corresponding to the first amount of first information; wherein the transmission method includes any of the following: One item: when data transmission is restored and the reception time interval of the received N data packets is less than the predetermined time interval, the above-mentioned first number of first information is sent within the above-mentioned first predetermined time period, N is positive Integer; within the above-mentioned first predetermined time period, suspend sending the above-mentioned first information after sending the above-mentioned first quantity of first information; within the above-mentioned first predetermined period of time, send the above-mentioned first quantity of first information at predetermined intervals.

Optionally, in the case where the first message includes the first amount of first information, the processor 110 is further configured to update the transmission mode of the first message to the target transmission if the first condition is met. method; wherein the target transmission method is the transmission method used before sending the first message; the first condition includes any of the following: the duration of sending the first message reaches a first predetermined duration, and the receiving end electronic device receives to the above mentioned lost packets.

Optionally, the processor 110 is also configured to detect the target parameter; the processor 110 is also configured to determine that the packet loss event occurs when the target parameter meets the second condition; wherein the target parameter includes at least one of the following: item: Data radio bearer DRB, layer 1 block error rate L1 BLER, wireless link control layer acknowledgment transmission mode sequence number L2 AM SN; the above second condition includes at least one of the following: the above DRB is in a deleted state; the value corresponding to the above L1 BLER It is higher than the first threshold and cannot be recovered through the predetermined mechanism; the target data corresponding to the above-mentioned L2 AM SN is in a discarded state.

Wherein, in the second electronic device, the above-mentioned radio frequency unit 101 is used to receive information corresponding to the packet loss event sent by the receiving end electronic device. The information corresponding to the above-mentioned packet loss event includes at least one of the following: packet loss content information, packet loss Event information; the above-mentioned packet loss content information includes any of the following: the sequence number SN range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet; the above-mentioned radio frequency unit 101 is also used to receive the SN sent by the above-mentioned receiving end electronic device. Data recovery information; the above-mentioned processor 110 is configured not to trigger the first mechanism when the third condition is met. The above-mentioned first mechanism includes: a congestion avoidance mechanism.

In the second electronic device provided in the embodiment of the present application, the second electronic device receives the information corresponding to the packet loss event (packet loss content information and/or packet loss event information) sent by the receiving end electronic device, and receives the received information from the receiving end electronic device. After the sent data recovery information is met, the congestion avoidance mechanism will not be triggered if the third condition is met. In this way, when data transmission is interrupted, a reduction in the data transmission rate can be avoided, and the previous data transmission rate can be maintained within a certain range, thereby improving data transmission efficiency.

Optionally, when the information corresponding to the above-mentioned packet loss event is the above-mentioned packet loss content information, the above-mentioned radio frequency unit 101 is configured to, based on the above-mentioned packet loss content information, send a corresponding message corresponding to the lost data packet within the above-mentioned SN range after receiving the above-mentioned packet loss content information. When indicating information, the first mechanism is not triggered.

Optionally, when the information corresponding to the packet loss event is the packet loss event information, when the data transmission of the sending end electronic device is restored and the third condition is met, the processor 110 is specifically configured to obtain The second predetermined duration includes any of the following: the duration agreed upon by the sending electronic device and the receiving electronic device, the duration calculated by the sending electronic device based on the packet loss information; the processor 110, specifically Used to not trigger the first mechanism within the above-mentioned second predetermined time period.

Optionally, when the second predetermined duration is a duration calculated by the sending end electronic device based on the packet loss information, the processor 110 is specifically configured to calculate the number of lost data packets based on the first information. The information is the transmission instruction information corresponding to the packet loss information sent by the receiving end electronic device to the sending end electronic device. The above-mentioned first information is used to indicate the loss of data packets; the processor 110 is specifically configured to calculate the number of lost data packets and the above-mentioned loss according to the number of lost data packets. The transmission information of the data packet determines the second predetermined duration, and the transmission information of the lost data packet includes any of the following: the transmission rate of the lost data packet, and the time it takes to receive the acknowledgment character ACK information corresponding to the lost data packet.

It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042. The graphics processor 1041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072 . Touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here. Memory 109 may be used to store software programs as well as various data, including but not limited to application programs and operating systems. The processor 110 can integrate an application processor and a modem processor, where the application processor mainly processes operating systems, user interfaces, application programs, etc., and the modem processor mainly processes wireless communications. It can be understood that the above modem processor may not be integrated into the processor 110 .

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above data transmission method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.

Wherein, the processor is the processor in the electronic device described in the above embodiment. The readable storage media includes computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above data transmission method embodiment. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-a-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , optical disk), including several instructions to cause a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A data transmission method, applied to receiving end electronic equipment, the method includes:

When data transmission is interrupted and a packet loss event is determined to occur, a first message is generated, and the first message includes any of the following: a first amount of first information, information corresponding to the packet loss event;

In the case of data transmission recovery, sending the first message and data recovery information to the sending end electronic device;

Wherein, the first information is used to indicate lost data packets; the information corresponding to the packet loss event includes at least one of the following: packet loss content information, packet loss event information; the packet loss content information includes any of the following: The sequence number SN range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet.
The method according to claim 1, wherein, when the first message is a first amount of first information, sending the first message and data recovery information to the sending end electronic device includes:

Within a first predetermined time period, send the first amount of first information and the data recovery information to the sending end electronic device;

Wherein, the first predetermined time period includes any of the following: the time period agreed between the receiving end electronic device and the sending end electronic device, from the interruption of data transmission to the receiving end electronic device receiving the lost data packet. the duration between.
The method of claim 2, wherein, in the case where the first message includes a first amount of first information, before sending the first message and the data recovery information to the sending end electronic device, the Methods also include:

Determine the transmission method corresponding to the first quantity of first information;

Wherein, the transmission method includes any of the following:

When data transmission resumes and the reception time interval of the received N data packets is less than the predetermined time interval, the first amount of first information is sent within the first predetermined time period, and N is a positive integer. ;

Within the first predetermined time period, suspend sending the first information after sending the first amount of first information;

The first amount of first information is sent at predetermined intervals within the first predetermined time period.
The method according to claim 1 or 2, wherein, in the case where the first message includes the first amount of first information, the first message and data recovery are sent to the sending end electronic device. After the information, the method also includes:

When the first condition is met, update the transmission mode of the first message to the target transmission mode;

Wherein, the target transmission method is the transmission method used before sending the first message;

The first condition includes any of the following: the duration of sending the first message reaches a first predetermined duration, and the receiving end electronic device receives the lost data packet.
The method according to any one of claims 1 to 4, wherein determining that a packet loss event occurs includes:

Detect target parameters;

When the target parameter meets the second condition, it is determined that the packet loss event occurs;

Wherein, the target parameters include at least one of the following: data radio bearer DRB, layer 1 block error rate L1 BLER, wireless link control layer acknowledgment transmission mode sequence number L2 AM SN;

The second condition includes at least one of the following:

The DRB is in a deleted state;

The value corresponding to the L1 BLER is higher than the first threshold and cannot be restored through a predetermined mechanism;

The target data corresponding to the L2 AM SN is in a discarding state.
A data transmission method, applied to sending end electronic equipment, the method includes:

Receive information corresponding to the packet loss event sent by the receiving end electronic device. The information corresponding to the packet loss event includes at least one of the following: packet loss content information, packet loss event information; the packet loss content information includes any of the following: The sequence number SN range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet;

Receive data recovery information sent by the receiving end electronic device;

When the third condition is met, the first mechanism is not triggered, and the first mechanism includes: a congestion avoidance mechanism.
The method according to claim 6, wherein when the information corresponding to the packet loss event is the packet loss content information, the sending end does not trigger the first mechanism when the third condition is met, include:

According to the packet loss content information, when receiving the transmission instruction information corresponding to the lost data packet within the SN range, the first mechanism is not triggered.
The method according to claim 6, wherein when the information corresponding to the packet loss event is the packet loss event information, when the data transmission is restored and the third condition is met, the third condition is not triggered. A mechanism includes:

Obtain a second predetermined duration, which includes any of the following: the duration agreed upon by the sending end electronic device and the receiving end electronic device, and the duration calculated by the sending end electronic device based on the packet loss information. ;

Within the second predetermined time period, the first mechanism is not triggered.
The method according to claim 8, wherein when the second predetermined duration is a duration calculated by the sending end electronic device based on the packet loss information, the obtaining the second predetermined duration includes:

Calculate the number of lost data packets according to the first information. The first information is the transmission instruction information corresponding to the packet loss information sent by the receiving end electronic device to the sending end electronic device. The first information is used to indicate that the Lost packets;

The second predetermined duration is determined according to the number of lost data packets and the transmission information of the lost data packets. The transmission information of the lost data packets includes any of the following: transmission rate, reception of the lost data packets. The elapsed time of the acknowledgment character ACK information corresponding to the lost data packet.
A data transmission device, the device includes: a generating module and a sending module;

The generation module is configured to generate a first message when data transmission is interrupted and a packet loss event is determined to occur. The first message includes any of the following: a first amount of first information, the packet loss event Information corresponding to the event;

The sending module is configured to send the first message and data recovery information generated by the generating module to the sending end electronic device when data transmission is restored;

Wherein, the first information is used to indicate lost data packets; the information corresponding to the packet loss event includes at least one of the following: packet loss content information, packet loss event information; the packet loss content information includes any of the following: The sequence number SN range corresponding to the lost data packet, and the SN number of the data packet after the lost data packet.
The apparatus of claim 10, wherein when the first message is a first amount of first information,

The sending module is configured to send the first amount of first information and the data recovery information to the sending end electronic device within a first predetermined time period;

Wherein, the first predetermined time period includes any of the following: the time period agreed between the receiving end electronic device and the sending end electronic device, from the interruption of data transmission to the receiving end electronic device receiving the lost data packet. the duration between.
The apparatus according to claim 10, wherein, in the case where the first message includes a first amount of first information, the apparatus further comprises: a determining module;

The determination module is used to determine the transmission mode corresponding to the first quantity of first information;

Wherein, the transmission method includes any of the following:

When data transmission resumes and the reception time interval of the received N data packets is less than the predetermined time interval, the first amount of first information is sent within the first predetermined time period, and N is a positive integer. ;

Within the first predetermined time period, suspend sending the first information after sending the first amount of first information;

The first amount of first information is sent at predetermined intervals within the first predetermined time period.
The device according to claim 10 or 11, wherein, in the case where the first message includes the first amount of first information, the device further includes an update module;

The update module is configured to update the transmission mode of the first message generated by the generation module to the target transmission mode when the first condition is met;

Wherein, the target transmission method is the transmission method used before sending the first message;

The first condition includes any of the following: the duration of sending the first message reaches a first predetermined duration, and the receiving end electronic device receives the lost data packet.
The device according to any one of claims 10 to 13, wherein the device further includes a detection module and a determination module;

The detection module is used to detect target parameters;

The determination module is configured to determine that the receiving end electronic device determines that the packet loss event occurs when the target parameter detected by the detection module meets the second condition;

Wherein, the target parameters include at least one of the following: data radio bearer DRB, layer 1 block error rate L1 BLER, wireless link control layer acknowledgment transmission mode sequence number L2 AM SN;

The second condition includes at least one of the following:

The DRB is in a deleted state;

The value corresponding to the L1 BLER is higher than the first threshold and cannot be restored through a predetermined mechanism;

The target data corresponding to the L2 AM SN is in a discarding state.
A data transmission device, the device includes: a receiving module and an execution module;

The receiving module is used to receive information corresponding to the packet loss event sent by the receiving end electronic device. The information corresponding to the packet loss event includes at least one of the following: packet loss content information, packet loss event information; the packet loss content The information includes any of the following: the sequence number SN range corresponding to the lost data packet, the SN number of the data packet after the lost data packet;

The receiving module is also used to receive data recovery information sent by the receiving end electronic device;

The execution module is configured to not trigger the first mechanism when the third condition is met, and the first mechanism includes: a congestion avoidance mechanism.
The device according to claim 15, wherein when the information corresponding to the packet loss event is the packet loss content information,

The execution module is specifically configured to not trigger the first mechanism when receiving the transmission instruction information corresponding to the lost data packet within the SN range according to the packet loss content information.
The device according to claim 15, wherein when the information corresponding to the packet loss event is the packet loss event information, the device further includes an acquisition module;

The acquisition module is used to obtain a second predetermined duration, and the second predetermined duration includes any of the following: the duration agreed by the sending end electronic device and the receiving end electronic device, and the sending end electronic device is configured according to the Describes the length of time for packet loss information calculation;

The execution module is specifically configured to not trigger the first mechanism within the second predetermined time period.
The device according to claim 17, wherein when the second predetermined duration is a duration calculated by the sending end electronic device based on the packet loss information, the device further includes: a calculation module and a determination module;

The calculation module is used to calculate the number of lost data packets according to the first information. The first information is the transmission instruction information corresponding to the packet loss information sent by the receiving end electronic device to the sending end electronic device. The first information Used to indicate lost packets;

The determining module is configured to determine the second predetermined duration based on the number of lost data packets calculated by the calculation module and the transmission information of the lost data packets. The transmission information of the lost data packets includes any of the following: One item: the transmission rate of the lost data packet, and the time it takes to receive the acknowledgment character ACK information corresponding to the lost data packet.
An electronic device, including a processor, a memory and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the implementation of claims 1-5 is achieved. Or the steps of the data transmission method according to any one of claims 6-9.
A readable storage medium on which programs or instructions are stored. When the programs or instructions are executed by a processor, the data as claimed in claims 1-5 or any one of claims 6-9 are realized. Steps of the transfer method.