WO2017005118A1

WO2017005118A1 - Method, device, terminal and server for maintaining communication connection

Info

Publication number: WO2017005118A1
Application number: PCT/CN2016/087464
Authority: WO
Inventors: 黄梅龙
Original assignee: 阿里巴巴集团控股有限公司; 黄梅龙
Priority date: 2015-07-09
Filing date: 2016-06-28
Publication date: 2017-01-12
Also published as: CN106341342A

Abstract

Disclosed are a method, device, terminal and server for maintaining a communication connection. The method is applied to a terminal provided with an application client, and comprises: establishing a communication connection between an application client and a server; recognizing whether a data packet sent by the server through the communication connection is a detection data packet used for maintaining the communication connection; and when it is recognized that the data packet is the detection data packet, discarding the detection data packet. By means of embodiments of the present application, after a communication connection is established between an application client on a terminal and a server, the server can actively send a detection data packet to the terminal, so as to maintain the communication connection. Since there is no need for the terminal to maintain the established communication connection, computing resources and electric quantity of the terminal are saved, and the detection data packet can be discarded after the detection data packet is recognized by the terminal, thereby further preventing occupying terminal resources because of processing the detection data packet.

Description

Method, device, terminal and server for maintaining communication connection

Technical field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a server for maintaining a communication connection.

Background technique

With the popularization of smart terminals (referred to as terminals), various application functions can be realized by installing a large number of applications on the terminal. Each application accesses the network through its application client, thereby establishing a communication connection with the corresponding application server to complete data communication.

In the prior art, the terminal can establish a long communication connection between each application client and the corresponding application server based on the SOCKET (socket) protocol, and whether the data is transmitted between the application client and the application server after the long connection is established. The terminal needs to actively maintain the established long connection, so when multiple applications are installed on the terminal, the terminal needs to consume a large amount of computing resources and power for maintaining multiple long connections.

Summary of the invention

The present application provides a method, an apparatus, a terminal, and a server for maintaining a communication connection, so as to solve the problem that a terminal needs to maintain a plurality of communication long connections and consume a large amount of computing resources and power in the prior art.

According to a first aspect of the embodiments of the present application, a method for maintaining a communication connection is provided. The method is applied to a terminal, where an application client is installed on the terminal, and the method includes:

Establish a communication connection between the application client and the server;

Identifying whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

When the data packet is identified as a probe data packet, the probe data packet is discarded.

According to a second aspect of the embodiments of the present application, there is provided another method of maintaining a communication connection, the method being applied to a server, the method comprising:

Establish a communication connection with an application client on the terminal;

And transmitting, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.

According to a third aspect of the embodiments of the present application, there is provided an apparatus for maintaining a communication connection, where the apparatus is applied to a terminal, and an application client is installed on the terminal, and the apparatus includes:

Establishing a unit for establishing a communication connection between the application client and the server;

An identifying unit, configured to identify whether a data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

And a processing unit, configured to discard the probe data packet when the data packet is identified as a probe data packet.

According to a fourth aspect of the embodiments of the present application, there is provided another apparatus for maintaining a communication connection, the apparatus being applied to a server, the apparatus comprising:

Establishing a unit for establishing a communication connection with an application client on the terminal;

And a maintaining unit, configured to send, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.

According to a fifth aspect of the embodiments of the present application, a terminal is provided, where an application client is installed on the terminal, including:

a processor; a memory for storing the processor executable instructions;

Wherein the processor is configured to:

According to a sixth aspect of the embodiments of the present application, a server is provided, including:

a processor; a memory for storing the processor executable instructions;

Wherein the processor is configured to:

Applying the embodiment of the present application, after establishing a communication connection between the application client and the server on the terminal, the server may actively send the probe data packet to the terminal to maintain the communication connection, since the terminal does not need to maintain the established communication connection, The computing resources and the power of the terminal are saved, and after the terminal identifies the probe data packet, the terminal may discard the probe data packet, thereby further avoiding processing the probe data packet and occupying terminal resources.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The drawings herein are incorporated in and constitute a part of the specification,

1 is a schematic structural diagram of a system for maintaining a communication connection by applying an embodiment of the present application;

2A is a flow chart of an embodiment of a method for maintaining a communication connection according to the present application;

2B is a flow chart of another embodiment of a method for maintaining a communication connection according to the present application;

3A is a flow chart of another embodiment of a method for maintaining a communication connection according to the present application;

FIG. 3B is a schematic diagram of transmission of a probe data packet in a seven-layer network structure according to an embodiment of the present application; FIG.

4 is a hardware structural diagram of a device where a device for maintaining a communication connection is located in the present application;

5 is a block diagram of an embodiment of an apparatus for maintaining a communication connection according to the present application;

6 is a block diagram of another embodiment of an apparatus for maintaining a communication connection of the present application.

detailed description

The terminology used in the present application is for the purpose of describing particular embodiments, and is not intended to be limiting. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and includes one or more of the associated listed items. Any or all possible combinations.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in this application, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information without departing from the scope of the present application. Similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to a determination."

Referring to FIG. 1 , a schematic diagram of a system architecture for maintaining a communication connection by applying an embodiment of the present application:

The system architecture shown in FIG. 1 includes two parts: a server side and a terminal side. The server side includes a server that provides an application service, and the terminal side includes a terminal 1 to a terminal n. Each terminal runs an application by installing an application client. Application function. After the communication connection between the server and the application client on the terminal is established through a wireless network, for example, a WiFi (Wireless Fidelity) network, or a mobile network, it may be based on HTTP (Hyper Text Transfer Protocol). ) Data communication with the application client. In the prior art, each terminal needs to actively maintain a communication connection established between multiple application clients and servers installed on the terminal, and thus a large amount of terminal resources are consumed. In this embodiment, the server can maintain all established through the connection list. The address information of the application client of the communication connection, for example, the IP address of the application client, to actively send the probe data packet to the terminal based on the maintained address information, to maintain the established communication connection, since the terminal does not need to maintain the established communication connection Therefore, the computing resources and the power of the terminal are saved, and after the terminal identifies the probe data packet, the terminal may discard the probe data packet, thereby further avoiding processing the probe data packet and occupying terminal resources. The application will be described in detail below in conjunction with specific embodiments.

2A is a flowchart of an embodiment of a method for maintaining a communication connection according to the present application. The embodiment may be applied to a terminal, where several application clients are installed:

Step 201: Establish a communication connection between the application client and the server.

In this step, when the terminal user accesses the server through the application client installed on the terminal, the terminal may send a connection establishment request to the server through the application client, where the connection establishment request is The address information of the application client is included, and the address information may include an IP (Internet Protocol) address of the terminal; when the terminal receives the connection establishment response returned by the server in response to the connection establishment request, the establishment of the communication connection with the server is completed. .

If the terminal does not receive the connection establishment response returned by the server within the preset response period, the terminal sends a connection establishment request to the server again; if the terminal sends the connection establishment request to the server for more than the preset number of times, it determines that the server is unreachable. Stop establishing a communication connection with the server.

Step 202: Identify whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection.

After the application client of the terminal establishes a communication connection with the server, data communication can be performed between the application connection and the server, thereby implementing corresponding application functions. In this embodiment, in order to maintain the established communication connection, the server periodically sends the probe data packet to the terminal. Since the server also needs to send various application data packets to the terminal, the terminal receives the data sent by the server through the communication connection. After the packet, the packet header information of the data packet can be read, and it is determined whether the packet header information is consistent with the preset probe header information, and if so, it is determined that the probe packet is received.

Step 203: When the identification data packet is a probe data packet, discard the probe data packet.

After the terminal identifies the probe data packet, it indicates that the communication connection between the application client and the server is normal, and the terminal can discard the probe data packet. Since the probe data packet is only used to maintain the communication connection, the terminal can discard the probe data packet before transmitting it to the application layer in the network seven-layer structure, thereby preventing the application client from detecting the data packet when the probe data packet is transmitted to the application layer. Processing is wasted terminal resources.

It can be seen from the foregoing embodiment that after establishing a communication connection between the application client and the server on the terminal, the server may actively send a probe data packet to the terminal to maintain the communication connection, since the terminal does not need to maintain the established communication connection, The computing resources and the power of the terminal are saved, and after the terminal identifies the probe data packet, the terminal may discard the probe data packet, thereby further avoiding processing the probe data packet and occupying terminal resources.

Referring to FIG. 2B, a flow chart of another embodiment of a method for maintaining a communication connection according to the present application may be applied to a server:

Step 211: Establish a communication connection with an application client on the terminal.

In this step, when the terminal user accesses the server through the application client installed on the terminal, the terminal may send a connection establishment request to the server through the application client, where the connection establishment request includes address information of the application client, and the address information may be Including the IP address of the terminal, after receiving the connection establishment request, the server may return a connection establishment response to the terminal in response to the connection establishment request, thereby completing establishment of a communication connection with the application client.

In this embodiment, since the server can establish a communication connection with multiple application clients at the same time, the server can maintain the address information of the application client that has established the communication connection through the preset connection list. After establishing a communication connection with any application client, the server can record the address information of the application client in the connection list.

Step 212: Send a probe data packet for maintaining the communication connection to the terminal, so that the terminal discards the probe data packet when the probe data packet is identified.

The detection period may be preset on the server. When the detection period is reached, the server actively sends a probe packet for maintaining the communication connection to the terminal. Corresponding to the connection list maintained in step 211, in this step, the server may obtain address information of all application clients that have established communication connections from the connection list, and generate a probe data packet, where the probe data packet includes a preset probe header. Information, so that the terminal can identify the probe data packet from all the data packets sent by the server according to the probe header information, and then the server sends the probe data packet to the corresponding application client according to the obtained address information, thereby maintaining the server and the application. Communication connection between clients.

Optionally, when the terminal user closes the application client, for example, the terminal user logs out from the application client, and may send a termination service request to the server, where the termination service request carries the address information of the application client, and when the server receives the termination service, After the request, the address information in the termination server request can be obtained, and the address information is deleted from the connection list, so that the server stops sending the probe data packet to the terminal.

It can be seen from the foregoing embodiment that after establishing a communication connection between the application client and the server on the terminal, the server may actively send a probe data packet to the terminal to maintain the communication connection, since the terminal does not need to maintain the established communication connection, Save the computing resources and power of the terminal, and end After identifying the probe data packet, the terminal may discard the probe data packet, thereby further avoiding processing the probe data packet and occupying terminal resources.

3A is a flowchart of another embodiment of a method for maintaining a communication connection according to the present application. This embodiment describes a process of maintaining a communication connection through interaction between a terminal and a server in combination with the application scenario shown in FIG.

Step 301: The terminal sends a connection establishment request to the server by using the application client, where the connection establishment request includes address information of the application client.

The terminal in the present application may include various devices having Internet access functions, such as a smartphone, a tablet, and the like. Various application functions can be implemented on the terminal by installing various application clients, and each application client application can run on the terminal operating system. When the application client implements the application function, it usually needs to establish a communication connection with the server set by the application service provider, and complete the data communication between the terminal and the server on the basis of maintaining the communication connection.

When the application client on the terminal wants to perform data communication with the server, the terminal may first send a connection establishment request to the server through the application client, and the connection establishment request may be an HTTP-based request.

Step 302: After returning the connection establishment response to the terminal according to the connection establishment request, the server completes establishment of the communication connection with the application client.

After receiving the connection establishment request, the server may return a connection establishment response to the terminal, thereby completing establishment of a communication connection with the application client. Correspondingly, after receiving the connection establishment response, the terminal may determine to complete the establishment of the communication connection with the server.

In this embodiment, if the terminal does not receive the connection establishment response returned by the server within the preset response period, the terminal may resend the connection establishment request to the server; if the terminal sends the connection establishment request to the server more than the preset number of times, Then determine that the server is unreachable and can stop establishing a communication connection with the server.

Step 303: The server records the address information of the application client in the connection list.

In this embodiment, since the server can establish a communication connection with multiple application clients at the same time, the server can use the preset connection list to address the address of the application client that has established the communication connection. Maintain it. After establishing a communication connection with any application client, the server may record the address information of the application client in the connection list, such as the connection list shown in FIG. 1, in which n applications of the established communication connection are recorded. The IP address of the client, ie IP1 to IPn.

Step 304: When the preset detection period is reached, the server obtains the recorded address information from the connection list.

A probe period can be preset on the server to actively trigger the sending of probe packets to the application client. When the server detects that the probe period arrives, it may first obtain the address information of all the application clients that have established the communication connection from the connection list.

Step 305: The server generates a probe data packet, where the probe data packet includes preset probe header information.

In order to facilitate the terminal to identify the probe data packet from the data packet sent by the server, the terminal and the server may pre-approve the probe header information for indicating the probe data packet. For example, the probe header information may be represented by a preset value of 0×00. After the server obtains the address information from the connection list, for example, the address information is an IP address, a probe data packet may be generated for each address information, and the destination address of the probe data packet may be an IP address of the application client, and The probe packet carries pre-agreed probe header information.

Step 306: The server sends the probe data packet to the corresponding application client according to the address information.

Step 307: After receiving the data packet, the terminal reads the packet header information of the data packet.

After receiving the data packet sent by the server, the terminal may parse the data packet to obtain the packet header information of the data packet.

Step 308: When the terminal determines that the packet header information is consistent with the preset probe header information, it is determined that the probe data packet is received.

Step 309: The terminal discards the probe data packet before detecting the data packet transmission to the application layer of the network seven-layer structure.

After the terminal determines that the probe data packet is received, it indicates that the communication connection between the application client and the server is normal, and the terminal may discard the probe data packet. Since the probe packet is only used to maintain the communication connection, the terminal can forward the probe packet to the application layer before it is transmitted to the application layer in the network seven-layer structure. The line is discarded, so that when the probe packet is transmitted to the application layer, the application client processes the probe packet and wastes terminal resources.

3B is a schematic diagram of transmission of a probe data packet in a seven-layer network structure in the embodiment of the present application: on the server side, the probe data packet is transmitted from the application layer to the physical layer in the network seven-layer structure of the server, and passes through The communication medium between the server and the terminal is transmitted to the application client on the terminal. On the application client side, when the probe data packet is transmitted from the physical layer to the transport layer in the network seven-layer structure of the client, the Probe packets are dropped.

Corresponding to the aforementioned embodiment of the method of maintaining a communication connection, the present application also provides an embodiment of a device, a terminal and a server for maintaining a communication connection.

The embodiment of the apparatus for maintaining a communication connection of the present application may be applied to a device having a hardware structure, and the corresponding device may be a terminal or a server according to a device implementation. The device embodiment may be implemented by software, or may be implemented by hardware or a combination of hardware and software. Taking the software implementation as an example, as a logical means, the processor of the device in which it is located reads the corresponding computer program instructions in the non-volatile memory into the memory. From a hardware level, as shown in FIG. 4, a hardware structure diagram of a device in which the device for maintaining a communication connection is maintained, except for the processor, the memory, the network interface, and the non-volatile memory shown in FIG. In addition, the device in which the device is located in the embodiment may also include other hardware according to the actual function of the device, which is not shown in FIG. 4 .

5 is a block diagram of an embodiment of an apparatus for maintaining a communication connection, where the apparatus embodiment may be applied to a terminal, where the application client is installed on the terminal, and the apparatus includes: an establishing unit 510, an identifying unit 520, and Processing unit 530.

The establishing unit 510 is configured to establish a communication connection between the application client and the server.

The identifying unit 520 is configured to identify whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

The processing unit 530 is configured to discard the probe data packet when the data packet is identified as a probe data packet.

In an optional implementation, the establishing unit 510 can include (not shown in FIG. 5):

a request sending subunit, configured to send, by the application client, a connection establishment request to the server, where the connection establishment request includes address information of the application client, so that the server records after the communication connection is established The address information;

The response receiving subunit is configured to complete establishment of the communication connection after receiving the connection establishment response returned by the server according to the connection establishment request.

In another optional implementation, the identification unit 520 can include (not shown in FIG. 5):

a data packet receiving subunit, configured to receive a data packet sent by the server through the communication connection;

An information reading subunit, configured to read the header information of the data packet;

The information determining subunit is configured to determine whether the packet header information is consistent with the preset probe header information, and if yes, determine to receive the probe data packet.

In another alternative implementation:

The processing unit 530 may be specifically configured to discard the probe data packet before the probe data packet is transmitted to an application layer of a network seven-layer structure.

Referring to FIG. 6, a block diagram of another embodiment of an apparatus for maintaining a communication connection according to the present application may be applied to a server, where the apparatus includes: an establishing unit 610 and a maintaining unit 620.

The establishing unit 610 is configured to establish a communication connection with an application client on the terminal.

The maintaining unit 620 is configured to send, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.

In an alternative implementation, the establishing unit 610 can include (not shown in FIG. 6):

a request receiving subunit, configured to receive a connection established by the terminal through the application client a request, the connection establishment request includes address information of the application client;

And responding to the sending subunit, configured to complete the establishment of the communication connection after returning the connection establishment response to the terminal according to the connection establishment request;

Correspondingly, the device may also include (not shown in Figure 6):

a recording unit, configured to record address information of the application client in the connection list after completing the establishment of the communication connection.

In another optional implementation, the maintaining unit 620 can include (not shown in FIG. 6):

An address obtaining subunit, configured to obtain the recorded address information from the connection list when a preset detection period is reached;

a probe packet generation subunit, configured to generate a probe data packet, where the probe data packet includes preset probe header information;

The probe packet sending subunit is configured to send the probe data packet to the corresponding application client according to the address information.

In another optional implementation, the apparatus may further include (not shown in FIG. 6):

a receiving unit, configured to receive a termination service request sent by the terminal by using the application client;

a deleting unit, configured to delete the address information of the application client recorded in the connection list according to the termination service request, so that the server stops sending the probe data packet to the terminal.

The implementation process of the function and the function of each unit in the foregoing device is specifically described in the implementation process of the corresponding steps in the foregoing method, and details are not described herein again.

For the device embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment. The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the present application. Those of ordinary skill in the art are not creative In the case of labor, it can be understood and implemented.

Other embodiments of the present application will be readily apparent to those skilled in the <RTIgt; The application is intended to cover any variations, uses, or adaptations of the application, which are in accordance with the general principles of the application and include common general knowledge or common technical means in the art that are not disclosed herein. . The specification and examples are to be regarded as illustrative only,

It is to be understood that the invention is not limited to the details of the details and The scope of the present application is limited only by the accompanying claims.

Claims

A method for maintaining a communication connection, wherein the method is applied to a terminal, and an application client is installed on the terminal, and the method includes:

Establish a communication connection between the application client and the server;

Identifying whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

When the data packet is identified as a probe data packet, the probe data packet is discarded.
The method according to claim 1, wherein the establishing a communication connection between the application client and the server comprises:

Sending, by the application client, a connection establishment request to the server, where the connection establishment request includes address information of the application client, so that the server records the address information after the communication connection is established;

After receiving the connection establishment response returned by the server according to the connection establishment request, the establishment of the communication connection is completed.
The method according to claim 1, wherein the identifying whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection comprises:

Receiving a data packet sent by the server through the communication connection;

Reading the header information of the data packet;

Determining whether the header information is consistent with the preset probe header information, and if yes, determining to receive the probe packet.
The method according to any one of claims 1 to 3, wherein the discarding the probe data packet is specifically: discarding the probe data before the probe data packet is transmitted to an application layer of a network seven-layer structure. package.
A method of maintaining a communication connection, wherein the method is applied to a server, the method comprising:

Establish a communication connection with an application client on the terminal;

And transmitting, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.
The method according to claim 5, wherein the establishing a communication connection with an application client on the terminal comprises:

Receiving, by the terminal, a connection establishment request sent by the application client, where the connection establishment request includes address information of the application client;

After the connection establishment response is returned to the terminal according to the connection establishment request, completing establishment of the communication connection;

The method further includes:

After the establishment of the communication connection is completed, the address information of the application client is recorded in the connection list.
The method according to claim 6, wherein the sending the probe data packet for maintaining the communication connection to the terminal comprises:

Obtaining the recorded address information from the connection list when a preset detection period is reached;

Generating a probe data packet, where the probe data packet includes preset probe header information;

Sending the probe data packet to the corresponding application client according to the address information.
The method of claim 6 wherein the method further comprises:

Receiving a termination service request sent by the terminal by using the application client;

And deleting the address information of the application client recorded in the connection list according to the termination service request, so that the server stops sending the probe data packet to the terminal.
An apparatus for maintaining a communication connection, wherein the apparatus is applied to a terminal, and an application client is installed on the terminal, and the apparatus includes:

Establishing a unit for establishing a communication connection between the application client and the server;

An identifying unit, configured to identify whether a data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

a processing unit, configured to discard the probe data when the data packet is identified as a probe data packet package.
The apparatus according to claim 9, wherein said establishing unit comprises:

a request sending subunit, configured to send, by the application client, a connection establishment request to the server, where the connection establishment request includes address information of the application client, so that the server records after the communication connection is established The address information;

The response receiving subunit is configured to complete establishment of the communication connection after receiving the connection establishment response returned by the server according to the connection establishment request.
The device according to claim 9, wherein the identification unit comprises:

a data packet receiving subunit, configured to receive a data packet sent by the server through the communication connection;

An information reading subunit, configured to read the header information of the data packet;

The information determining subunit is configured to determine whether the packet header information is consistent with the preset probe header information, and if yes, determine to receive the probe data packet.
A device according to any one of claims 9 to 11, wherein

The processing unit is specifically configured to discard the probe data packet before the probe data packet is transmitted to an application layer of a network seven-layer structure.
An apparatus for maintaining a communication connection, wherein the apparatus is applied to a server, the apparatus comprising:

Establishing a unit for establishing a communication connection with an application client on the terminal;

And a maintaining unit, configured to send, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.
The apparatus according to claim 13, wherein said establishing unit comprises:

a request receiving subunit, configured to receive a connection establishment request sent by the terminal by using the application client, where the connection establishment request includes address information of the application client;

And responding to the sending subunit, configured to complete the establishment of the communication connection after returning the connection establishment response to the terminal according to the connection establishment request;

The device also includes:

a recording unit, configured to record address information of the application client in the connection list after completing the establishment of the communication connection.
The apparatus according to claim 14, wherein said maintaining unit comprises:

An address obtaining subunit, configured to obtain the recorded address information from the connection list when a preset detection period is reached;

a probe packet generation subunit, configured to generate a probe data packet, where the probe data packet includes preset probe header information;

The probe packet sending subunit is configured to send the probe data packet to the corresponding application client according to the address information.
The device according to claim 14, wherein the device further comprises:

a receiving unit, configured to receive a termination service request sent by the terminal by using the application client;

a deleting unit, configured to delete the address information of the application client recorded in the connection list according to the termination service request, so that the server stops sending the probe data packet to the terminal.
A terminal, wherein an application client is installed on the terminal, including:

a processor; a memory for storing the processor executable instructions;

Wherein the processor is configured to:

Establish a communication connection between the application client and the server;

Identifying whether the data packet sent by the server through the communication connection is a probe data packet for maintaining the communication connection;

When the data packet is identified as a probe data packet, the probe data packet is discarded.
A server, comprising:

a processor; a memory for storing the processor executable instructions;

Wherein the processor is configured to:

Establish a communication connection with an application client on the terminal;

And transmitting, to the terminal, a probe data packet for maintaining the communication connection, so that the terminal discards the probe data packet when the probe data packet is identified.