WO2021088484A1

WO2021088484A1 - Network delay detection method and related device

Info

Publication number: WO2021088484A1
Application number: PCT/CN2020/112308
Authority: WO
Inventors: 黄成�; 苗海宏
Original assignee: 华为技术有限公司
Priority date: 2019-11-07
Filing date: 2020-08-29
Publication date: 2021-05-14
Also published as: CN112787877A; CN112787877B

Abstract

Embodiments of the present invention disclose a network delay detection method and a related device. The method comprises: acquiring at least one of the message size of each received data message, a network address and a port number; determining, according to at least one of the message size, the network address, and the port number, whether each data message is a synchronization frame sent by a target server; when it is determined that the plurality of data messages are synchronization frames sent by the target server, determining a time interval between the ith data message and the (i+1)th data message, wherein i is an integer equal to or greater than 1; determining a fixed synchronization frame interval of the data message according to the time interval; and determining network delay jitter of the ith data message according to the fixed synchronization frame interval and the time interval. By means of the embodiments of the present invention, the accuracy of network delay detection can be improved.

Description

Method for detecting network delay and related equipment

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201911083100.4, and the invention title is "a network delay detection method and related equipment" on November 7, 2019, the entire content of which is by reference Incorporated in this application.

Technical field

The present invention relates to the field of network technology, in particular to a network delay detection method and related equipment.

Background technique

E-sports online game experience has high requirements for network delay, especially the sudden delay of the network has a great impact on the game experience. There is no practical tool in the industry that can be applied to most games and accurately evaluate/record network pairs. The impact of the gaming experience. The network delay from the terminal device of the game to the game server can only be detected by the Internet packet detector (PING). However, the network delay detected by this detection method is not accurate, which is different from the network delay in the real network situation. The delay is quite different.

Summary of the invention

The embodiment of the present invention provides a network delay detection method and related equipment, which can improve the accuracy of network delay detection.

In the first aspect, an embodiment of the present invention provides a network delay detection method, including:

Obtain at least one of the message size, network address, and port number of each received data message; determine the message size, network address, and port number according to at least one of the message size, the network address, and the port number. Whether the data message is a synchronization frame sent by the target server; when it is determined that a plurality of the data messages are the synchronization frames sent by the target server, it is determined that the i-th data message and the i+1-th data message are The time interval between the data messages, the i is an integer greater than or equal to 1; according to the time interval, the fixed synchronization frame interval of the data message is determined; according to the fixed synchronization frame interval and the time interval , Determine the network delay jitter of the i-th data message. Periodically count the number of messages based on the size of the data message, network address and port number, and then determine the data message sent by the target server. And use the fixed synchronization frame interval of the data message to detect and analyze the changes in the key indicators of the network, so as to more accurately determine the network delay.

In an optional design, the first number of the same network addresses and the second number of the same port numbers are counted; the packet length is less than a preset threshold and the first number appears the most The data packet corresponding to the network address and the port number with the second largest occurrence is determined to be the synchronization frame sent by the target server. Periodically count the number of packets based on the size of data packets, network addresses, and port numbers to determine the data packets sent by the target server.

In another alternative design, the time interval is subtracted from the fixed synchronization frame interval to obtain a time difference; the larger of the time difference and 0 is taken as the i-th data message The network delay jitter. The network delay jitter reflects the changes of key network indicators, so as to more accurately determine the network delay.

In another optional design, after determining the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval, the difference between the terminal device and the target server is obtained Multiple round-trip delays; determining the peak round-trip delay of each data packet according to the multiple round-trip delays and the network delay jitter. The peak round-trip delay reflects the change of key network indicators, so that the network delay can be determined more accurately.

In another alternative design, multiple test messages are sent to the target server, and the sending time point of each test message is recorded; multiple response messages sent by the target server are received and recorded The receiving time point of each response message; the multiple round-trip delays are determined according to the sending time point and the receiving time point.

In another alternative design, the smallest one of the multiple round-trip delays is added to the network delay jitter of the i-th data packet to obtain the sum of the delays; and the i-th one The larger one of the round-trip delay and the sum of the delays corresponding to the data message is used as the peak round-trip delay of the i-th data message.

In another alternative design, the data message includes a transmission control protocol TCP message or a user data packet protocol UDP message.

In the second aspect, the embodiments of the present application provide a terminal device configured to implement the methods and functions performed by the terminal device in the above-mentioned first aspect. The terminal device is implemented by hardware/software, and the hardware/software includes the same functions as the above The corresponding module.

In a third aspect, the present application provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the method of any one of the foregoing aspects.

In a fourth aspect, the present application provides a computer program product, the computer program product is used to store a computer program, and when the computer program runs on a computer, the computer executes the method of any one of the above aspects.

In a fifth aspect, an embodiment of the present application provides a communication system, including the terminal device and the server in any of the foregoing aspects.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention or the background art, the following will describe the drawings that need to be used in the embodiments of the present invention or the background art.

Figure 1 is a schematic structural diagram of a network system provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a time sequence of a data message provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of network delay data provided by an application embodiment;

FIG. 4 is a schematic flowchart of a method for detecting network delay according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a time interval distribution provided by an embodiment of the present application;

6 is a schematic structural diagram of a network delay detection device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a terminal device proposed in an embodiment of the present application.

Detailed ways

The embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention.

Please refer to FIG. 1, which is a schematic structural diagram of a network system provided by an embodiment of the present invention. The network system may include a terminal device 101 and a server 102. Among them, the terminal device 101 may be a user equipment (UE), or a cellular phone, a smart phone, a portable computer, a handheld communication device, a handheld computing device, a satellite radio device, a global positioning system, or a personal digital assistant (personal digital assistant). , PDA) and/or any other suitable equipment for communicating on a wireless communication system, etc. The server 102 may be a game server or other application servers. In the application scenarios of e-sports games, the game synchronization mechanism is divided into a state synchronization mechanism and a frame synchronization mechanism. Among them, the frame synchronization mechanism is mainly used for e-sports games that require high latency, and the game data is carried through UDP packets. The terminal device may first receive the user's operation instruction, and then send the user datagram protocol (UDP) uplink message to the server. After the server receives the UDP uplink message, it performs the instruction logic judgment, and then sends the UDP downlink synchronization message to the terminal device. For UDP protocol packets, there is no corresponding sequence number for upstream packets and downstream packets, and there is no related tool to evaluate the network delay of UDP packets.

As shown in FIG. 2, FIG. 2 is a schematic diagram of a sequence of a UDP packet provided by an embodiment of the present application. The server may send logical frames to the client A and the client B at a fixed synchronization frame interval, where the fixed synchronization frame interval may be 66 ms or 50 ms, but is not limited. Client A and client B can send operation instructions to the server at different points in time. When the network round trip time (RTT) becomes larger, it will increase the response time of user operations and affect the user experience. Among them, RTT represents the round-trip delay between the terminal device and the server.

In the prior art solution, the round trip delay from the terminal device to the server can be detected through Ping. However, there are the following problems: First, this solution only applies to the Internet protocol (IP) address of a known server, and the server needs to respond to Ping, otherwise RTT cannot be detected, there are many restrictions on use, and the application scenarios are not extensive enough. Second, because the IP address of the server is changeable, and the time interval for Ping to detect packets is relatively long, it cannot accurately reflect the real network delay. As shown in FIG. 3, FIG. 3 is a schematic diagram of network delay data provided by an application embodiment. The network delay collected by Ping at the first point in time is less than 300ms, but the actual network delay at this point in time is greater than 700ms. The network delay collected at the second point in time is less than 400ms, but the actual network delay at this point in time is greater than 700ms. It is similar at the third time point. Therefore, the network delay collected by Ping is very different from the network delay in the real network environment, and it cannot truly reflect the real network delay.

As shown in FIG. 4, FIG. 4 is a schematic flowchart of a method for detecting network delay according to an embodiment of the present application. The method includes at least the following steps:

S401: Acquire at least one of the message size, network address, and port number of each received data message. Wherein, the data message may include a transmission control protocol TCP message or a user data packet protocol UDP message. Among them, the TCP message and the UDP message are messages with a fixed synchronization frame interval.

In specific implementation, it is possible to first obtain all message information sent by the terminal device to the server during a test period and all message information sent by the server received by the terminal device. All message information includes transmission control protocol (TCP) messages, user datagram protocol (UDP) messages, domain name system (DNS) messages, and hypertext transfer protocol (hypertext transfer protocol) messages. text transport protocol, HTTP) messages and so on. According to the message protocol, the data message can be filtered out from all message information. Then obtain the message size, network address, and port number of each data message. Among them, the network address may be an internet protocol (IP) address.

S402: Determine whether each data packet is a synchronization frame sent by a target server according to at least one of the packet size, the network address, and the port number.

In specific implementation, you can first filter according to the message size of each message, filter out the messages whose message size is less than the preset threshold, and then count the first number of the same network addresses for the filtered messages , If a certain network address has the largest number of occurrences and it is not the network address of the machine, it can be determined that the network address is the network address of the target server, and the data message corresponding to the network address is the data message sent by the target server . Finally, the second number of the same port number is counted. If the second number of a certain port number appears the most, it is determined that the downlink data packet corresponding to the port number is a synchronization frame sent by the target server. Among them, the data message is a synchronization frame with a fixed periodic interval. The preset threshold includes but is not limited to 500 bytes.

S403: When it is determined that a plurality of the data messages are the synchronization frames sent by the target server, determine the time interval between the i-th data message and the (i+1)th data message, The i is an integer greater than or equal to 1.

In specific implementation, for the above filtered synchronization frame, the time stamp of the data message may be obtained first, and the time stamp records the time point of receiving each data message. Then, according to the time stamp of the data message, the time interval between the i-th data message and the (i+1)th data message is calculated. That is, the difference obtained by subtracting the receiving time point of the i-th message from the receiving time point of the i+1-th said data message is taken as the i-th said data message and the i+1-th said data message The time interval between texts.

Optionally, an abnormal point/outlier detection algorithm can be used to remove the time interval of abnormal data packets. As shown in FIG. 5, FIG. 5 is a schematic diagram of a time interval distribution provided by an embodiment of the present application. If a certain time interval is distributed in the shaded part in FIG. 5, it is determined that the time interval is an abnormal time interval. If a certain time interval is distributed between -Za and Za and between the curve and the horizontal axis, the time interval is determined to be a valid time interval.

S404: Determine a fixed synchronization frame interval of the data message according to the time interval.

In an implementation manner, a linear regression method can be used to calculate the time interval corresponding to the minimum mean square error as the fixed synchronization frame interval. For example, the fixed synchronization frame interval can be calculated by the following formula:

σ ² is the mean square error, N is the number of data messages, T_UDP _i+1 is the receiving time point of the i+1 data message, T_UDP _i is the receiving time point of the i data message, and T_sc is fixed Synchronization frame interval.

Specifically, the initial value of T_sc can be set, and the mean square error can be calculated according to the initial value and the time interval. Then modify (increase or decrease) the initial value of T_sc according to the preset step length, calculate the mean square error again according to the modified initial value and time interval of T_sc, and then modify (increase) the preset step length again Or reduce) the initial value of T_sc, and calculate the mean square error. Repeat the above steps several times to calculate multiple mean square errors. Determine the smallest one of the multiple mean square errors, and use T_sc corresponding to the smallest mean square error as the fixed synchronization frame interval.

In another implementation manner, the median value of N-1 time intervals may be taken as the fixed synchronization frame interval. For example, T_sc=median(T_UDP _i+1- T_UDP _i ). Among them, T_UDP _i+1 is the receiving time point of the i+ _{1th data message, T_UDP i} is the receiving time point of the i-th data message, T_sc is the fixed synchronization frame interval, and madian represents the median operation.

S405. Determine the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval.

In specific implementation, the time interval may be subtracted from the fixed synchronization frame interval to obtain the time difference; the larger of the time difference and 0 is taken as the network time of the i-th data packet Delay jitter.

For example, Jitter_i=MAX[(T_UDP _i+1 -T_UDP _i )-T_sc, 0], where Jitter_i represents the network delay jitter of the i-th data packet, and T_UDP _i+1 is the i+1-th data packet _{T_UDP i} is the receiving time point of the i-th data message, and T_sc is the fixed synchronization frame interval. MAX represents the maximum value operation.

Optionally, after determining the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval, multiple round trips between the terminal device and the target server may be acquired first Time delay (RTT time delay). Further, a plurality of test messages may be sent to the target server according to a preset period, where the length of the preset period may be the aforementioned fixed synchronization frame interval. Record the sending time point of each test message. Then, multiple response messages sent by the target server are received, and the time point of receiving each of the response messages is recorded. The multiple round-trip delays are determined according to the sending time point and the receiving time point. Among them, the test message may be a Ping message.

For example, during an online game, a Ping message can be sent to the game server according to a preset cycle to test i times to obtain i RTT delays, and i RTTs are represented as: RTT_1,..., RTT_i. Or, when the game server uses a cloud server and Ping detection is prohibited, TCP packets can be filtered out from all the packets collected by the terminal device, and then the RTT delay can be calculated based on the TCP packets.

Then, according to the multiple round-trip delays and the network delay jitter, the round-trip delay peak value of each of the data packets is determined. Further, the smallest one of the multiple round-trip delays may be added to the network delay jitter of the i-th data message to obtain the sum of the delays, and the value corresponding to the i-th data message may be taken The larger one of the round-trip delay and the sum of the delays is used as the peak round-trip delay of the i-th data packet.

For example, RRT_peak_i=MAX(RRT_min+Jitter_i, RTT_i). Among them, RRT_peak_i is the peak value of RTT corresponding to the i-th data packet, RRT_min is the smallest one among the multiple round-trip delays tested, Jitter_i is the network delay jitter of the i-th data packet, RTT_i Is the round-trip delay of the Ping message corresponding to the i-th message. MAX represents the maximum value operation.

In the embodiment of the present application, the number of packets is periodically counted based on the size of the data packet, the network address, and the port number, so as to determine the data packet sent by the target server. And use the fixed synchronization frame interval of the data message to detect and analyze the changes in the key indicators of the network, so as to more accurately determine the network delay. The embodiments of the present application can be applied to online game battles, can help game users judge network conditions, and guide users to select appropriate operator networks and game user experience test scenarios. Users can use the difference in network delay indicators obtained from different network tests to select the best network condition. In addition, it can help operators accurately evaluate network latency indicators and create a high-quality gaming network environment.

The foregoing describes the method of the embodiment of the present invention in detail, and the device of the embodiment of the present invention is provided below.

Please refer to FIG. 6, which is a schematic structural diagram of a network delay detection device provided by an embodiment of the present invention. The network delay detection device may include an acquisition module 601 and a processing module 602. The detailed description of each unit is as follows.

The obtaining module 601 is configured to obtain at least one of the message size, network address, and port number of each received data message.

The processing module 602 is configured to determine whether each data packet is a synchronization frame sent by a target server according to at least one of the packet size, the network address, and the port number.

The processing module 602 is further configured to, when it is determined that a plurality of the data messages are the synchronization frames sent by the target server, determine whether the i-th data message and the (i+1)th data message are The time interval between, the i is an integer greater than or equal to 1.

The processing module 602 is further configured to determine the fixed synchronization frame interval of the data message according to the time interval.

The processing module 602 is further configured to determine the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval.

Optionally, the processing module 602 is further configured to count the first number of the same network addresses and the second number of the same port numbers; reduce the length of the message to be less than a preset threshold and the first number The data packet corresponding to the network address that appears most frequently and the port number that appears most in the second number is determined to be the synchronization frame sent by the target server.

Optionally, the processing module 602 is further configured to subtract the fixed synchronization frame interval from the time interval to obtain a time difference; and take the larger one of the time difference and 0 as the i-th datagram The network delay jitter described in the article.

Optionally, the processing module 602 is further configured to obtain multiple round-trip delays between the terminal device and the target server; determine each of the data according to the multiple round-trip delays and the network delay jitter The peak round-trip delay of packets.

Optionally, the processing module 602 is further configured to send multiple test messages to the target server, and record the sending time point of each test message; receive multiple response messages sent by the target server, And record the receiving time point of each response message; determine the multiple round-trip time delays according to the sending time point and the receiving time point.

Optionally, the processing module 602 is further configured to add the smallest one of the multiple round-trip delays to the network delay jitter of the i-th data packet to obtain the sum of the delays; take the i-th one The larger one of the round-trip delay and the sum of the delays corresponding to the data message is used as the peak round-trip delay of the i-th data message.

It should be noted that the implementation of each module may also correspond to the corresponding description of the method embodiment shown in FIG. 4.

Please continue to refer to FIG. 7, which is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 7, the terminal device may include: at least one processor 701, at least one communication interface 702, at least one memory 703, and at least one communication bus 704.

The processor 701 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication bus 704 may be a standard PCI bus for interconnecting peripheral components or an extended industry standard structure EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus. The communication bus 704 is used to implement connection and communication between these components. Among them, the communication interface 702 of the device in the embodiment of the present application is used for signaling or data communication with other node devices. The memory 703 may include volatile memory, such as nonvolatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive random access memory (magetoresistive) RAM, MRAM), etc., and may also include non-volatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), flash memory devices, such as reverse or flash memory (NOR flash memory) or NAND flash memory (NAND flash memory), semiconductor devices, such as solid state disk (SSD), etc. Optionally, the memory 703 may also be at least one storage device located far away from the foregoing processor 701. Optionally, the memory 703 may also store a group of program codes, and the processor 701 may optionally also execute the programs executed in the memory 703.

Obtain at least one of the message size, network address, and port number of each received data message;

Determining whether each data message is a synchronization frame sent by a target server according to at least one of the message size, the network address, and the port number;

When it is determined that a plurality of the data messages are the synchronization frames sent by the target server, the time interval between the i-th data message and the i+1-th data message is determined, and i is an integer greater than or equal to 1;

Determine the fixed synchronization frame interval of the data message according to the time interval;

Determine the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval.

Optionally, the processor 701 is further configured to perform the following operations:

Counting the first number of the same network addresses and the second number of the same port numbers;

The data packet corresponding to the network address with the largest number of occurrences in the first number and the port number with the largest number of occurrences in the second number is determined as the data packet sent by the target server as the length of the packet is less than the preset threshold.述Sync frame.

Subtracting the fixed synchronization frame interval from the time interval to obtain a time difference;

The larger one of the time difference and 0 is taken as the network delay jitter of the i-th data packet.

Acquiring multiple round-trip delays between the terminal device and the target server;

According to the multiple round-trip delays and the network delay jitter, determine the round-trip delay peak value of each of the data packets.

Sending multiple test messages to the target server, and recording the sending time point of each test message;

Receiving multiple response messages sent by the target server, and recording the receiving time point of each response message;

The multiple round-trip delays are determined according to the sending time point and the receiving time point.

Adding the smallest one of the multiple round-trip delays to the network delay jitter of the i-th data packet to obtain the sum of the delays;

The larger one of the sum of the round-trip delay and the delay corresponding to the i-th data message is taken as the peak round-trip delay of the i-th data message.

Further, the processor may also cooperate with the memory and the communication interface to perform the operation of the terminal device in the above-mentioned application embodiment.

The embodiment of the present application also provides a chip system, which includes a processor, which is used to support terminal devices to implement the functions involved in any of the above embodiments, such as generating or processing the data and/or involved in the above methods. Or information. In a possible design, the chip system may further include a memory, and the memory is used for necessary program instructions and data of the terminal device or the server. The chip system can be composed of chips, or include chips and other discrete devices.

The embodiment of the present application further provides a processor, which is configured to be coupled with a memory and used to execute any method and function related to the terminal device in any of the foregoing embodiments.

The embodiments of the present application also provide a computer program product, which when running on a computer, enables the computer to execute any method and function related to the terminal device in any of the foregoing embodiments.

The embodiment of the present application also provides a communication device for executing any method and function related to the terminal device in any of the foregoing embodiments.

An embodiment of the present application also provides a communication system, which includes at least one terminal device and at least one server involved in any of the foregoing embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

The specific implementations described above further describe the purpose, technical solutions, and beneficial effects of the present application in further detail. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A method for detecting network delay, which is characterized in that it comprises:

Obtain at least one of the message size, network address, and port number of each received data message;

Determining whether each data message is a synchronization frame sent by a target server according to at least one of the message size, the network address, and the port number;

When it is determined that a plurality of the data messages are the synchronization frames sent by the target server, the time interval between the i-th data message and the i+1-th data message is determined, and i is an integer greater than or equal to 1;

Determine the fixed synchronization frame interval of the data message according to the time interval;

Determine the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval.
The method according to claim 1, wherein the determining whether each data message is sent by the target server according to at least one of the message size, the network address, and the port number The synchronization frame includes:

Counting the first number of the same network addresses and the second number of the same port numbers;

The data packet corresponding to the network address with the largest number of occurrences in the first number and the port number with the largest number of occurrences in the second number is determined as the data packet sent by the target server as the packet length is less than a preset threshold述Sync frame.
The method according to claim 1 or 2, wherein the determining the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval comprises:

Subtracting the fixed synchronization frame interval from the time interval to obtain a time difference;

The larger one of the time difference and 0 is taken as the network delay jitter of the i-th data packet.
The method according to any one of claims 1 to 3, wherein after determining the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval, further include:

Acquiring multiple round-trip delays between the terminal device and the target server;

According to the multiple round-trip delays and the network delay jitter, determine the round-trip delay peak value of each of the data packets.
The method according to claim 4, wherein said obtaining multiple round trip delays between the terminal device and the target server comprises:

Sending multiple test messages to the target server, and recording the sending time point of each test message;

Receiving multiple response messages sent by the target server, and recording the receiving time point of each of the response messages;

The multiple round-trip delays are determined according to the sending time point and the receiving time point.
The method according to claim 4, wherein the determining the round-trip delay peak value of each of the data packets according to the multiple round-trip delays and the network delay jitter comprises:

Adding the smallest one of the multiple round-trip delays to the network delay jitter of the i-th data packet to obtain the sum of the delays;

The larger one of the sum of the round-trip delay and the delay corresponding to the i-th data message is taken as the peak round-trip delay of the i-th data message.
A network delay detection device, characterized in that it comprises:

The obtaining module is used to obtain at least one of the message size, network address, and port number of each received data message;

A processing module, configured to determine whether each data message is a synchronization frame sent by a target server according to at least one of the message size, the network address, and the port number;

The processing module is further configured to determine the i-th data message and the (i+1)th data message when it is determined that a plurality of the data messages are the synchronization frames sent by the target server The time interval between, said i is an integer greater than or equal to 1;

The processing module is further configured to determine the fixed synchronization frame interval of the data message according to the time interval;

The processing module is further configured to determine the network delay jitter of the i-th data packet according to the fixed synchronization frame interval and the time interval.
The device of claim 7, wherein:

The processing module is further configured to count the first number of the same network address and the second number of the same port number; the length of the message is smaller than a preset threshold and the first number appears the most The data packet corresponding to the network address and the port number with the second largest occurrence is determined to be the synchronization frame sent by the target server.
The device according to claim 7 or 8, wherein:

The processing module is further configured to subtract the fixed synchronization frame interval from the time interval to obtain a time difference value; take the larger one of the time difference value and 0 as the all data message of the i-th data packet. The network delay jitter is described.
The device according to any one of claims 7-9, wherein:

The processing module is further configured to obtain multiple round-trip delays between the terminal device and the target server; determine the value of each data packet according to the multiple round-trip delays and the network delay jitter Peak round-trip delay.
The device of claim 10, wherein:

The processing module is further configured to send multiple test messages to the target server, and record the sending time point of each test message; receive multiple response messages sent by the target server, and record each Receiving time points of the response message; and determining the multiple round-trip delays according to the sending time point and the receiving time point.
The device of claim 10, wherein:

The processing module is further configured to add the smallest one of the multiple round-trip delays to the network delay jitter of the i-th data packet to obtain the sum of the delays; and take the i-th data The larger one of the round-trip delay and the sum of the delays corresponding to the message is used as the peak round-trip delay of the i-th data message.
A terminal device, characterized by comprising: a memory, a communication bus, and a processor, wherein the memory is used to store program code, and the processor is used to call the program code to execute any of the following as claimed in claims 1-6. The method described in one item.
A computer-readable storage medium, characterized in that instructions are stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the method according to any one of claims 1-6.