WO2023045313A1

WO2023045313A1 - Session establishment method and apparatus, and client device and computer storage medium

Info

Publication number: WO2023045313A1
Application number: PCT/CN2022/087867
Authority: WO
Inventors: 金勇�
Original assignee: 深圳市广和通无线通信软件有限公司
Priority date: 2021-09-26
Filing date: 2022-04-20
Publication date: 2023-03-30
Also published as: CN113923797A

Abstract

The present application relates to a session establishment method and apparatus, and a client device and a computer storage medium. The method comprises: acquiring target address information of a server (200); performing, on the basis of the target address information, a search in stored session mapping information, and confirming a session identifier corresponding to the target address information as a target session identifier, wherein the session mapping information comprises server address information and a session identifier that corresponds to the server address information (300); and generating a handshake message according to the target session identifier, and sending the handshake message to the server, so that the server recovers a session corresponding to the target session identifier (400).

Description

Session establishment method, device, client device and computer storage medium

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111128425.7 and the title of the invention "session establishment method, device, client device and computer storage medium" submitted to the China Patent Office on September 26, 2021, the entire content of which is passed References are incorporated in this application.

technical field

The present application relates to the technical field of communications, and in particular to a method and device for establishing a session, a client device and a computer storage medium.

Background technique

With the development of wireless communication technology, not only communication between people can be realized, but also communication between things and communication between things and people can be realized. Considering the diversification of communication equipment, in order to meet the application requirements of specific communication equipment (such as low power consumption and small storage space, etc.), the LWM2M (Lightweight Machine to Machine, lightweight M2M) protocol has been formulated to meet the aforementioned requirements. However, in the case of using the LWM2M protocol for communication, the client device configured with the LWM2M client has the problem of excessive power consumption.

Contents of the invention

According to various embodiments of the present application, a method and device for establishing a session, a client device and a computer storage medium are provided, so as to reduce power consumption of the client device.

A method for establishing a session, the method comprising:

Obtain the target address information of the server;

Search the stored session mapping information based on the target address information, and confirm the session identifier corresponding to the target address information as the target session identifier; the session mapping information includes server address information and a session corresponding to the server address information the session ID of the

Generate a handshake message according to the target session identifier, and send the handshake message to the server, so that the server restores the session corresponding to the target session identifier.

In one of the embodiments, the session mapping information further includes a session establishment time, and the session establishment time is the last time when the server corresponding to the server address information successfully establishes a session;

The method also includes:

Searching the stored session mapping information based on the target address information to obtain a session establishment time corresponding to the target address information;

Obtaining the current time, and judging whether to confirm the session identifier corresponding to the target address information as the target session identifier according to the session establishment time corresponding to the current time and the target address information.

In one of the embodiments, the judging whether to confirm the session identifier corresponding to the target address information as the target session identifier according to the session establishment time corresponding to the target address information at the current moment includes:

Obtain the time interval between the current moment and the session establishment moment corresponding to the target address information;

If the time interval is less than or equal to the effective duration, confirm the session identifier corresponding to the target address information as the target session identifier.

In one of the embodiments, the determining whether to confirm the session identifier corresponding to the target address information as the target session identifier according to the session establishment time corresponding to the target address information at the current moment further includes:

If the time interval is greater than the effective duration, an initial handshake message is sent to the server, so that the server creates a new session.

In one of the embodiments, the method further includes: when the server successfully restores the session corresponding to the target session identifier, acquiring the session establishment time of the current session;

Updating the session establishment time corresponding to the target address information to the session establishment time of the current session.

In one of the embodiments, the method further includes: when the session corresponding to the target session identifier fails to resume, deleting the session mapping information corresponding to the target session identifier.

In one of the embodiments, the method further includes: when there is no session mapping information corresponding to the target address information in the stored session mapping information, sending an initial handshake message to the server, so that the server creates a new session;

In the case of successfully establishing a new session, corresponding session mapping information is established and stored according to the target address information and the session identifier of the newly created session.

A device for establishing a session, the device comprising:

A target address information acquisition module, configured to acquire target address information of the server;

A target session identification acquisition module, configured to search stored session mapping information based on the target address information, and confirm the session identification corresponding to the target address information as the target session identification; the session mapping information includes server address information and a session identifier corresponding to the server address information;

The session restoration module is configured to generate a handshake message according to the target session identifier, and send the handshake message to the server, so that the server restores the session corresponding to the target session identifier.

In one of the embodiments, the session mapping information also includes a session establishment time, and the session establishment time is the last time when a server corresponding to the server address information successfully establishes a session; the device further includes:

The time determination module is used to search in the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information;

The identification judging module is used to obtain the current time, and judge whether to confirm the session identification corresponding to the target address information as the target session identification according to the session establishment time corresponding to the current time and the target address information.

In one of the embodiments, the identification judgment module includes:

The identification obtaining unit is used to obtain the time interval between the current moment and the session establishment time corresponding to the target address information; when the time interval is less than or equal to the effective duration, confirm the session identification corresponding to the target address information as the target session identification.

In one of the embodiments, the identification judgment module also includes:

The initial handshake message sending unit is configured to send an initial handshake message to the server so that the server creates a new session when the time interval is greater than the effective duration.

In one of the embodiments, the device also includes:

The session establishment time obtaining module is used to obtain the session establishment time of the current session when the server successfully restores the session corresponding to the target session identifier;

An update module, configured to update the session establishment time corresponding to the target address information to the session establishment time of the current session.

In one of the embodiments, the device also includes:

The deletion module is configured to delete the session mapping information corresponding to the target session ID when the session corresponding to the target session ID fails to recover.

In one of the embodiments, the device also includes:

The session new module is used to send an initial handshake message to the server when there is no session mapping information corresponding to the target address information in the stored session mapping information, so that the server can create a new session;

The session mapping information establishing module is used for establishing and storing corresponding session mapping information according to the target address information and the session identifier of the newly created session when the session is successfully created.

A client device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

Obtain the target address information of the server;

A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the target address information of the server;

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the invention will be apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate embodiments and or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The accompanying specification or examples used to describe the drawings should not be considered limiting of the scope of any of the disclosed inventions, the presently described embodiments and or examples, and the best mode of these inventions currently understood.

Fig. 1 is an application environment diagram of a session establishment method in an embodiment;

Fig. 2 is one of the schematic flow diagrams of the method for establishing a session in an embodiment;

Fig. 3 is a schematic flow chart of the target session identification acquisition step in one embodiment;

FIG. 4 is a schematic flow chart of a session identifier judgment step in an embodiment;

FIG. 5 is a second schematic flow diagram of a method for establishing a session in an embodiment;

Fig. 6 is the third schematic flow chart of the method for establishing a session in an embodiment;

FIG. 7 is a fourth schematic flow diagram of a method for establishing a session in an embodiment;

Fig. 8 is a structural block diagram of a device for establishing a session in an embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

As mentioned in the background, the power consumption of a client device configured with an LWM2M client is too high during communication. The inventor found that the reason for this problem is that in the process of establishing a session between the LWM2M client and the server each time, a complete handshake process is required between the LWM2M client and the server before it can be established, resulting in the configuration of the LWM2M client The client device at the end needs to spend more data traffic and time during the session establishment process, thereby increasing the power consumption of the client device.

Based on this, it is necessary to provide a session establishment method, device, client device and computer storage medium, by storing the server address information and the session identifier corresponding to the server address information, thereby initiating session recovery based on the stored session mapping information The process does not need to establish each session through a complete session process, which can shorten the time spent in the session establishment process, and reduce the data traffic consumed by the client device during the process, so as to reduce the power consumption of the client device.

The session establishment method, device, client device and computer storage medium provided in this application can be applied to the application environment shown in FIG. 1 . Wherein, the client device may be a device having a communication function and configured with a communication protocol client. The client device communicates with the server through the communication protocol, and then realizes data interaction. It can be understood that any communication protocol can be configured on the client device, which is not limited in the present application, as long as the communication protocol can be used to realize the communication between the client device and the server. In one embodiment, the client device is configured with a client of the LWM2M protocol, and the client device communicates with the server through the LWM2M protocol.

The client device can obtain the target address information of the server; the client device searches the stored session mapping information based on the target address information, and confirms the session identifier corresponding to the target address information as the target session identifier; wherein, the session mapping information includes the server The address information and the session ID corresponding to the address information of the server; the client generates a handshake message according to the target session ID, and sends the handshake message to the server, so that the server restores the session corresponding to the target session ID.

The client device can be any form of communication device, such as a module, chip or circuit with communication functions, or a terminal device equipped with the aforementioned communication device, such as various types of narrowband Internet of Things devices, mobile phones, tablet computers, Notebook computers, smart cars, smart homes, etc., are not specifically limited in this application. In one of the embodiments, the client device is a 5G communication module. The server can be implemented by an independent server or a server cluster composed of multiple servers.

In one embodiment, as shown in FIG. 2, a method for establishing a session is provided. The method is applied to the client device in FIG. 1 as an example for illustration, including the following steps:

Step 200, acquiring target address information of the server.

Wherein, the target address information refers to address information of a server used for exchanging application layer data with the client device. In one embodiment, the server corresponding to the target address information may be the server currently connected to the client device. It should be noted that the connection status between the client device and the server is not necessarily related to whether a session has been established. In other words, while the client device is connected to the server, there is a possibility that the session between the client device and the server has not yet been established.

The client device communicates with the server by obtaining destination address information. It can be understood that the target address information may include one or more types of information used to indicate the server address, which is not specifically limited in this application. In one embodiment, the target address information may include the IP address and port of the server.

Step 300: Search the stored session mapping information based on the target address information, and confirm the session ID corresponding to the target address information as the target session ID; the session mapping information includes the server address information and the session ID corresponding to the server address information.

Specifically, one or more sets of session mapping information are stored in the client device, each set of session mapping information includes server address information and a session identifier corresponding to the server address information, and the session identifier can be based on the client device and the corresponding The server address information is determined by the historical session establishment process between servers. The session mapping information reflects the session corresponding to the session identifier once established between the client device and the server corresponding to the server address information. In one embodiment, the session mapping relationship stored by the client device may be dynamically adjusted according to the establishment of the session between the client device and the server, so as to improve the accuracy of the session mapping information.

It can be understood that when the client device stores multiple sets of session mapping information, the content included in any two sets of session mapping information may be different, partially identical, or completely overlapped. This application does not specifically limit this, as long as the session It only needs that the mapping information can reflect the mapping relationship between the server address information and the session identifier. For example, when the client device stores multiple sets of session mapping information, the server address information of any two sets of session mapping information can be the same or different; for multiple sets of session mapping information with the same server address information, the target session included in it The IDs can be the same or different.

After obtaining the target address information, the client device may search the stored session mapping information to determine whether there is a session identifier corresponding to the target address information, that is, the target session identifier. If the target session ID corresponding to the target address information is found, it indicates that a session has been established between the client device and the server, and the found session ID can be confirmed as the target session ID.

Step 400: Generate a handshake message according to the target session ID, and send the handshake message to the server, so that the server restores the session corresponding to the target session ID.

Specifically, during the session establishment process, the client device and the server need to perform a handshake process, so that the server can establish a session according to the handshake result. In the case that the session identifier is included in the handshake message sent by the client device, the client device and the server may attempt to restore the session corresponding to the session identifier through a simplified handshake process. In the case that the session ID is not included in the handshake message sent by the client device, a complete handshake process needs to be performed between the client device and the server, so as to realize the allocation, delivery and session establishment of the session ID.

It can be understood that the client device and the server may perform a handshake process based on any handshake protocol, which is not specifically limited in this application. In one of the embodiments, the client device and the server perform a handshake through a DTLS (Datagram Transport Layer Security, Datagram Transport Layer Security) protocol.

After obtaining the target session ID, the client device generates a handshake message according to the target session ID, so that the handshake message includes the target session ID. After the client sends the handshake message, a brief handshake process is performed between the client and the server, so that the server restores the session corresponding to the target session representation and completes the session establishment process. After the session is established, data exchange at the application layer can be performed between the client device and the server.

In the above method for establishing a session, the client device stores server address information and a session identifier corresponding to the server address information, that is, session mapping information. When the client device obtains the target address information of the server, it searches the stored session mapping information for the session ID corresponding to the target address information, and confirms the found session ID as the target session ID. Generate handshake information according to the target session identifier, and send the handshake information to the server. In this way, the client device can enable the server to restore the session corresponding to the target session identifier through a short handshake process, and complete the session establishment without having to perform a complete handshake process in each session establishment process, thereby reducing the verification during the session establishment process process, shorten the time consumption of the session establishment process, and reduce the data traffic consumption of the client device in this process, thereby reducing the power consumption of the client device.

In one embodiment, the session mapping information further includes session establishment time, which is the last time when the server corresponding to the server address information successfully establishes a session.

As shown in Figure 3, the session establishment method of the present application also includes:

Step 310, searching the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information;

Step 320, obtain the current time, and judge whether to confirm the session ID corresponding to the target address information as the target session ID according to the session establishment time corresponding to the current time and the target address information.

Specifically, each set of session mapping information also includes a session establishment time, which is the last time when the client device successfully establishes a session with the server corresponding to the session mapping information. The client device may query the stored session mapping information according to the target address information to determine whether there is session mapping information corresponding to the target address information. If it exists, the session establishment time corresponding to the target address information (hereinafter referred to as the target session establishment time) may be determined, that is, the last time when the client device successfully establishes a session with the server corresponding to the target address information. In the case of determining the target session establishment time, the client device may determine whether to confirm the session identifier corresponding to the target address information as the target session identifier according to the current time and the target session establishment time. If yes, confirm the session ID corresponding to the target address information as the target session ID, and execute step 400 . If not, a complete handshake process can be performed between the client device and the server to confirm a new session identifier and establish a session.

Further, the present application may confirm the session ID corresponding to the target address information as the target session ID if the target session establishment time is earlier than the current time, otherwise, perform a complete handshake process. In this way, it is possible to prevent wrong session mapping information from interfering with the session establishment process, thereby improving the success rate of session establishment. Alternatively, the application can determine the valid period of the session identifier according to the establishment time of the target session. If the current moment is within the valid period of the session identifier, then confirm the session identifier corresponding to the target address information as the target session identifier, otherwise perform a complete handshake process .

In this embodiment, by obtaining the last time when the client device successfully established a session with the server corresponding to the server address information, and according to the session establishment time corresponding to the current time and the target address information, it is judged whether to confirm the session identifier corresponding to the target address information It is the target session identifier, so as to ensure the validity of the session identifier corresponding to the target address information, thereby improving the success rate of session recovery and reducing the average duration of session establishment.

In one embodiment, as shown in FIG. 4, according to the session establishment time corresponding to the target address information at the current moment, it is judged whether to confirm the session identifier corresponding to the target address information as the target session identifier, including:

Step 322, obtaining the time interval between the current moment and the session establishment moment corresponding to the target address information;

In step 324, if the time interval is less than or equal to the effective duration, confirm the session identifier corresponding to the target address information as the target session identifier.

Specifically, in the case of obtaining the target session establishment time, the client device obtains the time interval between the current time and the target session establishment time, which is the time when the client device and the server corresponding to the target address information successfully established a session last time The difference from the current moment. If the time interval is less than or equal to the valid duration, it indicates that the session identifier corresponding to the target address information has a higher probability of remaining valid, and the server has a higher probability of being able to restore the session corresponding to the session identifier, so as to simplify the session establishment process. Therefore, the client device may confirm the session ID corresponding to the target address information as the target session ID, and execute step 400, so that the server restores the session corresponding to the target session ID.

It can be understood that the specific time length of the effective duration can be set according to factors such as the device type of the client device, the communication frequency between it and the server, and/or the update frequency of the session ID by the server, which is not specifically limited in this application. In one example, the effective period may be 24 hours.

In this embodiment, when the time interval between the current moment and the target session establishment time is less than or equal to the effective duration, the client device confirms the session identifier corresponding to the target address information as the target session identifier, thereby avoiding the The resulting session recovery failure further improves the session recovery success rate and minimizes the time consumption, data flow consumption and power consumption of the session establishment process.

In one embodiment, please continue to refer to FIG. 4 , according to the session establishment time corresponding to the target address information at the current moment, it is judged whether to confirm the session identifier corresponding to the target address information as the target session identifier, which also includes:

Step 326, when the time interval is greater than the effective duration, send an initial handshake message to the server, so that the server creates a new session.

Specifically, when the time interval between the current time and the target session establishment time is greater than the effective duration, session recovery based on the session identifier corresponding to the target address information has a higher probability of failure, that is, the session corresponding to the session identifier cannot be restored. Therefore, when the time interval is greater than the effective duration, the client device generates an initial handshake message and sends the initial handshake message to the server, so that the server creates a new session. In this way, the client device performs a complete handshake process with the server, so that the server can re-determine the session ID and establish the session. In one embodiment, the length of the session identifier in the initial handshake message is zero, that is, the session identifier in the initial handshake message is empty.

In this embodiment, when the time interval is greater than the effective duration, a new session ID is determined through a complete handshake process instead of generating a handshake message based on the session ID corresponding to the target address information to perform a simplified handshake process. In this way, the session restoration process with high failure rate can be avoided, and the success rate of session establishment can be further improved. At the same time, it can also reduce the average duration of the session establishment process, and further reduce the time consumption, data traffic consumption and power consumption of the client device.

In one embodiment, as shown in Figure 5, the session establishment method also includes:

Step 500, when the server successfully restores the session corresponding to the target session identifier, obtain the session establishment time of the current session;

Step 600: Update the session establishment time corresponding to the target address information to the session establishment time of the current session.

Specifically, when the server successfully restores the session corresponding to the target session identifier, the client device obtains the session establishment time of the session (ie, the current session), and updates the session establishment time in the target mapping relationship. It can be understood that the session establishment time can be determined according to the session recovery process corresponding to the target session identifier, which is not specifically limited in this application. In one embodiment, the session establishment time is the handshake completion time, that is, the time when the client device and the server complete the handshake process, so as to improve the accuracy of the session establishment time.

In one embodiment, in the session mapping information stored by the client device, the same server address information corresponds to at most one set of session mapping information, in other words, no two sets of session mapping information with the same server address information are stored. Each set of session mapping information will be dynamically updated along with the establishment of the session between the client device and the server, such as updating the session establishment time and/or session identifier. In this way, on the one hand, the amount of stored data can be reduced, thereby reducing the hardware requirements of the client device and broadening the applicability. On the other hand, the accuracy and validity of the session mapping information can also be improved, so as to improve the query efficiency and session recovery success rate, and further reduce the power consumption of the client device.

In this embodiment, when the session is successfully restored, the session establishment time of the current session is updated to the session establishment time, thereby improving the validity and accuracy of the session mapping information and further reducing the client device's time in the session establishment process. power consumption.

In one embodiment, the method for establishing a session further includes: if the session corresponding to the target session identifier fails to resume, the client device deletes the session mapping information corresponding to the target session identifier. Specifically, the client device generates a handshake message based on the target session ID, and sends the handshake message to the server, so that the server attempts to restore the session corresponding to the target session ID. If the session recovery fails, the client device deletes the session mapping information corresponding to the target session identifier stored therein. Further, after the session recovery fails, the client device can also perform a complete handshake process with the server to determine a new session identifier and establish a session.

In this embodiment, when the session recovery corresponding to the target session ID fails, the client device deletes the session mapping information corresponding to the target session ID, which can not only reduce the amount of stored data, but also avoid the interference of invalid information on the session establishment process. Further improve the efficiency of session establishment.

In one embodiment, as shown in Figure 6, the session establishment method also includes:

Step 700, when there is no session mapping information corresponding to the target address information in the stored session mapping information, an initial handshake message is sent to the server, so that the server creates a new session;

Step 800, when a new session is successfully created, corresponding session mapping information is established and stored according to the target address information and the session identifier of the newly created session.

Specifically, if there is no session identifier corresponding to the target address information in the session mapping information stored by the client device, the client device sends initial handshake information to the server. In this way, the client device performs a complete handshake process with the server to determine the session ID and establish a new session. When the session is successfully established, the client device generates corresponding session mapping information according to the target address information and the session identifier of the newly created session, and stores the session mapping information for use in the next session establishment process. In this way, the corresponding session can be restored in the subsequent session establishment process, reducing the time consumption, data flow consumption and power consumption in the session establishment process.

In order to facilitate the understanding of the present application, a specific embodiment will be described below. As shown in Figure 7, a method for establishing a session is provided, the method is applied to a client device, and specifically includes:

In step 902, the client device initiates a connection to the server, and obtains target address information of the server. It should be noted that, during multiple connections, the client device may connect to the same or different servers, which is not specifically limited in this application.

Step 904 , the client device searches the stored session mapping information to determine whether there is target session mapping information corresponding to the target address information, if not, go to step 906 , if yes, go to step 914 .

Step 906, the client device sends an initial CLINET HELLO message to the server, and performs a complete DTLS handshake process with the server. Wherein, the session identification length of the initial CLINET HELLO message is zero, and the session identification is empty.

Step 908, judge whether the DTLS handshake is successful, if not, go to step 906, if yes, go to step 910.

Step 910: Obtain the session ID of the new session and the handshake completion time, generate target address information, the session ID of the new session, and the session mapping information of the handshake completion time, and store them.

Step 912, the client device exchanges application layer data with the server.

Step 914 , judging whether the distance from the current time to the session establishment time of the target session mapping information exceeds the effective duration, if yes, go to step 906 , if not, go to step 916 .

Step 916, the client device generates a target CLIENT HELLO message based on the session identifier of the target session mapping information, and sends the target CLIENT HELLO message to the server. Wherein, the target CLIENT HELLO message includes the session identifier of the target session mapping information. Specifically, after the client device sends the target CLIENT HELLO message to the server, the client device and the server perform a short handshake process, so that the server attempts to restore the session corresponding to the session identifier of the target session mapping information.

Step 918, judge whether the DTLS handshake is successful, if not, go to step 920, if yes, go to step 922.

Step 920, the client device deletes the target session mapping information, and enters step 904 to re-initiate the handshake process.

Step 922, the client device obtains the session establishment time of the current session, and updates the session establishment time in the target session mapping information to the session establishment time of the current session.

In this application, after the client device is turned on, the LWMM client is started and connected to the server. After connecting, the client device initiates the CLIENT HELLO message packaging and sending process in the DTLS handshake process. Specifically, the client device queries the cached session mapping information according to the server address information and port of the server, and judges whether to establish the session through the session recovery process or the session creation process according to the query result.

If the client device does not have target session mapping information, the client device and the server perform a complete DTLS handshake process, and store the session ID of the new session, the handshake completion time of the new session, server IP address and port after the handshake is successful. If there is target session mapping information in the client device, it is judged whether the time interval between the current moment and the session establishment time of the target session mapping information is greater than the effective duration (eg, 24 hours). If yes, perform a complete DTLS handshake process; if not, pack the session identifier in the target session mapping information into the CLIENT HELLO message, and the client device and the server perform session recovery verification and execute the session recovery process. In the case of successful session recovery, the client device updates the session establishment time in the target session mapping information; in the case of session recovery failure, it re-shakes through the complete DTLS handshake process. In this way, the conversation process between the LWM2M client and the server can be simplified, and the power consumption of the client device can be reduced.

It should be understood that although the various steps in the flow charts in FIGS. 2-7 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-7 may include multiple steps or stages, these steps or stages are not necessarily executed at the same moment, but may be executed at different moments, the execution of these steps or stages The sequence is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

In one embodiment, as shown in FIG. 8 , a session establishment device is provided, including: a target address information acquisition module, a target session identifier acquisition module, and a session recovery module, wherein:

The target session identification acquisition module is used to search the stored session mapping information based on the target address information, and confirm the session identification corresponding to the target address information as the target session identification; the session mapping information includes server address information and information corresponding to the server address information. the session ID of the

The session restoration module is configured to generate a handshake message according to the target session ID, and send the handshake message to the server, so that the server restores the session corresponding to the target session ID.

In one embodiment, the session mapping information further includes session establishment time, which is the last time when the server corresponding to the server address information successfully establishes a session. The session establishment device includes a time determination module and an identification judgment module, wherein the time determination module is used to search the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information. The identification judging module is used to obtain the current time, and judge whether to confirm the session identification corresponding to the target address information as the target session identification according to the session establishment time corresponding to the current time and the target address information.

In one embodiment, the identification judging module includes an identification obtaining unit, which is used to obtain the time interval between the current moment and the session establishment time corresponding to the target address information; when the time interval is less than or equal to the effective duration, the target The session ID corresponding to the address information is confirmed as the target session ID.

In one embodiment, the identity judging module includes an initial handshake message sending unit configured to send an initial handshake message to the server when the time interval is greater than the effective duration, so that the server creates a new session.

In one embodiment, the session establishment device further includes a session establishment time acquisition module and an update module, wherein the session establishment time acquisition module is used to obtain the session establishment time of the current session when the server successfully restores the session corresponding to the target session identifier . The update module is used to update the session establishment time corresponding to the target address information to the session establishment time of the current session.

In one embodiment, the device for establishing a session further includes a deletion module, configured to delete the session mapping information corresponding to the target session ID when the session corresponding to the target session ID fails to resume.

In one embodiment, the session establishment device further includes a session establishment module and a session mapping information establishment module, wherein the session establishment module is used to send a message to the server when there is no session mapping information corresponding to the target address information in the stored session mapping information Send an initial handshake message to cause the server to create a new session. The session mapping information establishment module is used to establish and store corresponding session mapping information according to the target address information and the session identifier of the newly created session when the session is successfully created.

For the specific limitations of the session establishment device, refer to the above-mentioned definition of the session establishment method, which will not be repeated here. Each module in the above-mentioned session establishment device can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

As used in this application, the terms "component," "module," and "system" and the like are intended to mean a computer-related entity, which may be hardware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and or a computer. As an illustration, both an application running on a server and a server can be a component. One or more components can reside within a process and or thread of execution, and a component can be localized on one computer and or distributed between two or more computers.

In one embodiment, a client device is provided. The client device may be any device with a communication function, which is not specifically limited in this application. For example, client devices can be mobile phones, tablet computers, laptops, smart cars, smart homes, etc., as well as modules with communication functions. In one embodiment, the client device is a communication module, and in one example, the communication module is a Qualcomm 5G communication module.

The client device includes a memory and a processor, a computer program is stored in the memory, and the processor implements the following steps when executing the computer program:

Obtain the target address information of the server;

Searching in the stored session mapping information based on the target address information, and confirming the session identification corresponding to the target address information as the target session identification; the session mapping information includes the server address information and the session identification corresponding to the server address information;

Generate a handshake message according to the target session ID, and send the handshake message to the server, so that the server restores the session corresponding to the target session ID.

In one embodiment, the session mapping information further includes session establishment time, which is the last time when the server corresponding to the server address information successfully establishes a session. When the processor executes the computer program, the following steps are also implemented: searching in the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information; At the time of establishment, it is judged whether to confirm the session identifier corresponding to the target address information as the target session identifier.

In one embodiment, when the processor executes the computer program, the following steps are also implemented: obtaining the time interval between the current moment and the session establishment time corresponding to the target address information; The session ID of is confirmed as the target session ID.

In one embodiment, when the processor executes the computer program, the following steps are further implemented: when the time interval is greater than the effective duration, send an initial handshake message to the server, so that the server creates a new session.

In one embodiment, when the processor executes the computer program, the following steps are also implemented: when the server successfully restores the session corresponding to the target session identifier, obtain the session establishment time of the current session; update the session establishment time corresponding to the target address information to The session establishment time of the current session.

In one embodiment, when the processor executes the computer program, the following steps are further implemented: when the session corresponding to the target session identifier fails to resume, delete the session mapping information corresponding to the target session identifier.

In one embodiment, the following steps are also implemented when the processor executes the computer program: when there is no session mapping information corresponding to the target address information in the session mapping information, an initial handshake message is sent to the server so that the server creates a new session; In the case of creating a new session, corresponding session mapping information is established and stored according to the target address information and the session identifier of the newly created session.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the target address information of the server;

In one embodiment, the session mapping information further includes session establishment time, which is the last time when the server corresponding to the server address information successfully establishes a session. When the computer program is executed by the processor, the following steps are also implemented: searching in the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information; When the session is established, it is judged whether to confirm the session identifier corresponding to the target address information as the target session identifier.

In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: obtaining the time interval between the current moment and the session establishment time corresponding to the target address information; The corresponding session ID is confirmed as the target session ID.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: when the time interval is greater than the effective duration, send an initial handshake message to the server, so that the server creates a new session.

In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the server successfully restores the session corresponding to the target session identifier, obtain the session establishment time of the current session; update the session establishment time corresponding to the target address information The session establishment moment for the current session.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: when the session corresponding to the target session identifier fails to resume, delete the session mapping information corresponding to the target session identifier.

In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when there is no session mapping information corresponding to the target address information in the stored session mapping information, an initial handshake message is sent to the server, so that the server creates a new session ; In the case of successfully creating a new session, establish and store corresponding session mapping information according to the target address information and the session identifier of the newly created session.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only represent several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims

A method for establishing a session, the method comprising:

Obtain the target address information of the server;

Search the stored session mapping information based on the target address information, and confirm the session identifier corresponding to the target address information as the target session identifier; the session mapping information includes server address information and a session corresponding to the server address information the session ID of the

Generate a handshake message according to the target session identifier, and send the handshake message to the server, so that the server restores the session corresponding to the target session identifier.
The method for establishing a session according to claim 1, wherein the session mapping information further includes a session establishment time, and the session establishment time is the latest time when a server corresponding to the server address information successfully establishes a session;

The method also includes:

Searching the stored session mapping information based on the target address information to obtain a session establishment time corresponding to the target address information;

Obtaining the current time, and judging whether to confirm the session identifier corresponding to the target address information as the target session identifier according to the session establishment time corresponding to the current time and the target address information.
The session establishment method according to claim 2, wherein, according to the session establishment time corresponding to the target address information at the current time, it is judged whether to confirm the session identifier corresponding to the target address information as the Target session ID, including:

Obtain the time interval between the current moment and the session establishment moment corresponding to the target address information;

If the time interval is less than or equal to the effective duration, confirm the session identifier corresponding to the target address information as the target session identifier.
The session establishment method according to claim 3, wherein, according to the session establishment time corresponding to the target address information at the current time, it is judged whether to confirm the session identifier corresponding to the target address information as the The target session ID, which also includes:

If the time interval is greater than the effective duration, an initial handshake message is sent to the server, so that the server creates a new session.
The method for establishing a session according to claim 2, further comprising:

When the server successfully recovers the session corresponding to the target session identifier, acquire the session establishment time of the current session;

Updating the session establishment time corresponding to the target address information to the session establishment time of the current session.
The session establishment method according to any one of claims 1 to 5, wherein the method further comprises:

When the session recovery corresponding to the target session identifier fails, delete the session mapping information corresponding to the target session identifier.
The session establishment method according to any one of claims 1 to 5, wherein the method further comprises:

When there is no session mapping information corresponding to the target address information in the session mapping information, an initial handshake message is sent to the server, so that the server creates a new session;

In the case of successfully establishing a new session, corresponding session mapping information is established and stored according to the target address information and the session identifier of the newly created session.
A device for establishing a session, the device comprising:

A target address information acquisition module, configured to acquire target address information of the server;

A target session identification acquisition module, configured to search stored session mapping information based on the target address information, and confirm the session identification corresponding to the target address information as the target session identification; the session mapping information includes server address information and a session identifier corresponding to the server address information;

The session restoration module is configured to generate a handshake message according to the target session identifier, and send the handshake message to the server, so that the server restores the session corresponding to the target session identifier.
The device according to claim 8, wherein the session mapping information also includes a session establishment time, and the session establishment time is the last time when a server corresponding to the server address information successfully establishes a session; the device also includes:

The time determination module is used to search in the stored session mapping information based on the target address information to obtain the session establishment time corresponding to the target address information;

The identification judging module is used to obtain the current time, and judge whether to confirm the session identification corresponding to the target address information as the target session identification according to the session establishment time corresponding to the current time and the target address information.
The device according to claim 9, wherein the identification judging module comprises:

The identification obtaining unit is used to obtain the time interval between the current moment and the session establishment time corresponding to the target address information; when the time interval is less than or equal to the effective duration, confirm the session identification corresponding to the target address information as the target session identification.
The device according to claim 10, wherein the identification judgment module further comprises:

The initial handshake message sending unit is configured to send an initial handshake message to the server so that the server creates a new session when the time interval is greater than the effective duration.
The device according to claim 9, wherein the device further comprises:

The session establishment time obtaining module is used to obtain the session establishment time of the current session when the server successfully restores the session corresponding to the target session identifier;

An update module, configured to update the session establishment time corresponding to the target address information to the session establishment time of the current session.
The device according to any one of claims 8 to 12, wherein the device further comprises:

The deletion module is configured to delete the session mapping information corresponding to the target session ID if the session recovery corresponding to the target session ID fails.
The device according to any one of claims 8 to 12, wherein the device further comprises:

The session new module is used to send an initial handshake message to the server when there is no session mapping information corresponding to the target address information in the stored session mapping information, so that the server can create a new session;

The session mapping information establishing module is used for establishing and storing corresponding session mapping information according to the target address information and the session identifier of the newly created session when the session is successfully created.
A client device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method according to any one of claims 1 to 7 when executing the computer program.
A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are realized.