WO2017198158A1

WO2017198158A1 - Session management method, device and system

Info

Publication number: WO2017198158A1
Application number: PCT/CN2017/084589
Authority: WO
Inventors: 陈力
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-05-17
Filing date: 2017-05-16
Publication date: 2017-11-23
Also published as: CN107395555A

Abstract

Disclosed in the present disclosure are a session management method, device and system, the method comprising: a session management device receives a session service request from a session service initiation node; the session management device responds to the session service request according to a first correspondence between a session identifier and the session service initiation node; and the session management device sends, to the session service initiation node, a response message corresponding to the session service request.

Description

Method, device and system for session management

Technical field

The present application relates to, but is not limited to, wireless communication technologies, and more particularly to a method, device and system for session management.

Background technique

In order to realize the interconnection of computer systems, the Open System Interconnection (OSI) reference model divides the communication functions of the network into seven levels, and also defines the relationship between each level and the services and functions included in each level. .

The seven levels of the OSI model are, from low to high, the physical layer, the data link layer, the network layer, the transport layer, the session layer, the presentation layer, and the application layer. Among them, the main function of the session layer is to establish, maintain and release the connection to the user between the two nodes, and manage and control the session to ensure reliable transmission of session data.

However, in the protocol developed by the current 3rd Generation Partnership Project (3GPP), the session connection process is not separately reflected, but is directly included in the description of the application layer protocol. In the protocol developed by the 3GPP, there are some characteristics for the current way of implementing the session connection: the session relationship is maintained by the application layer of the network communication node and the session process is included in the application layer protocol. This phenomenon will increase the number of session relationships between communication nodes, which will make the application layer difficult to maintain, greatly increasing the burden of the application layer; and because the session connection process should be considered during the application layer protocol development process, the protocol development will be greatly increased. And the workload of the later development and maintenance process.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiments of the present invention are expected to provide a method, device, and system for session management, which can reduce the burden of the application layer and reduce the workload of network protocol formulation and post-maintenance.

In a first aspect, an embodiment of the present invention provides a method for session management, where the method is applied to a session management device that is additionally set in a network node in a network architecture, and the method includes:

The session management device receives a session service request sent by the session service initiation node, where the session service request includes a session service initiation node identifier and session information;

The session management device responds to the session service request according to a first correspondence between the session identifier and the session service originating node;

The session management device sends a response message corresponding to the session service request to the session service initiation node.

In an embodiment, the session service request includes a session creation request, where the session service initiation node identifier is: an identifier of the first network node that is a session service initiator, and the session information includes a session type. The session creation request further includes an identifier of the second network node that is the target end of the session service;

Correspondingly, the session management device responds to the session service request according to the first correspondence between the session identifier and the session service initiation node, including:

The session management device sets a corresponding session identifier for the session creation request, and establishes a first correspondence between the session identifier and the session type and the first network node identifier according to the session creation request;

The session management device sends a session creation indication to the second network node according to the first correspondence relationship, where the session creation indication includes the session identifier and the session type;

The session management device receives the creation confirmation message sent by the second network node, and establishes a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier according to the create confirmation message. Wherein the creation confirmation message includes the session identifier;

Correspondingly, the session management device sends a response message corresponding to the session service request to the session service initiation node, including:

The session management device sends a session creation response message to the first network node; wherein the session creation response message includes the session identifier.

In an embodiment, the method further includes:

Receiving, by the session management device, a session message sent by the first network node, where the session message includes the session identifier and session content;

And the session management device forwards the session content to the second network node according to the session identifier and the second correspondence, where the forwarding message includes the session identifier and the session content.

In an embodiment, the method further includes:

Receiving, by the session management device, a session modification request sent by the first network node, where the session modification request includes the session identifier and content to be modified;

The session management device modifies the corresponding second correspondence according to the session modification request;

The session management device sends a session modification response to the first network node.

In an embodiment, the method further includes:

Receiving, by the session management device, a session deletion request sent by the first network node, where the session deletion request includes a session identifier to be deleted;

The session management device sends a session deletion indication to the second network node, where the session deletion indication includes a session identifier to be deleted;

Receiving, by the session management device, a session deletion confirmation message returned by the second network node, where the session deletion confirmation message includes a session identifier to be deleted;

The session management device deletes the corresponding second correspondence according to the session identifier to be deleted, and sends a session deletion response message to the first network node, where the session deletion response message includes the The session ID to be deleted.

In a second aspect, the embodiment of the present invention provides a method for session management, where the method is applied to a first network node that is a session service initiator, and the method includes:

Sending a session service request to the session management device; wherein the session management device is a session management device additionally set in a network node in the network architecture; the session service request includes a first network node identifier and session information;

Receiving a response message sent by the session management device corresponding to the session service request.

In an embodiment, the session service request includes: a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node that is a session service initiator, and the session information includes a session type. The session creation request further includes an identifier of a second network node that is a target end of the session service;

Correspondingly, the response message correspondingly sent for the session service request includes a session creation response message; wherein the session creation response message includes a session identifier.

In an embodiment, the method further includes:

The first network node sends a session message to the session management device; wherein the session message includes the session identifier and session content.

In an embodiment, the method further includes:

Transmitting, by the first network node, a session modification request to the session management device, where the session modification request includes the session identifier and content to be modified;

The first network node receives a session modification response sent by the session management device.

In an embodiment, the method further includes:

Sending, by the first network node, a session deletion request to the session management device, where the session deletion request includes a session identifier to be deleted;

Receiving, by the first network node, a session deletion response message sent by the session management device, where the session deletion response message includes a session identifier to be deleted;

The first network node deletes the application context corresponding to the session identifier to be deleted.

In a third aspect, an embodiment of the present invention provides a session management method, where the method is applied to a second network node, where the method includes:

Receiving a session creation indication sent by the session management device; wherein the session management device is a session management device additionally set in a network node in the network architecture; the session creation indication includes a session identifier and a session type;

Establishing a corresponding session context creation according to the session creation indication;

Sending a confirmation message to the session management device; wherein the creating an acknowledgement message packet Includes the session ID.

In an embodiment, the method further includes:

Receiving, by the second network node, a forwarding message sent by the session management device, where the forwarding message includes the session identifier and session content;

The second network node delivers the session content to its corresponding application context according to the session identifier for processing.

In an embodiment, the method further includes:

Receiving, by the second network node, a session deletion indication sent by the session management device, where the session deletion indication includes a session identifier to be deleted;

The second network node deletes the application context corresponding to the session identifier to be deleted, and returns a session deletion confirmation message to the session management device, where the session deletion confirmation message includes the to-be-deleted Session ID.

In a fourth aspect, an embodiment of the present invention provides a session management device, where the session management device includes: a first receiving module, a response module, and a first sending module;

The first receiving module is configured to receive a session service request sent by the session service initiating node, where the session service request includes a session service initiating node identifier and session information;

The response module is configured to respond to the session service request according to a first correspondence between the session identifier and the session service originating node;

The first sending module is configured to send a response message corresponding to the session service request to the session service initiating node.

Correspondingly, the response module is configured to set a corresponding session identifier for the session creation request, and establish a relationship between the session identifier and the session type and the first network node identifier according to the session creation request. First correspondence

The first sending module is configured to send a session creation indication to the second network node according to the first correspondence, where the session creation indication includes the session identifier and the session type;

The first receiving module is further configured to receive a creation confirmation message sent by the second network node, where the creation confirmation message includes the session identifier;

The response module is further configured to establish, according to the create confirmation message, a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier;

Correspondingly, the first sending module is further configured to send a session creation response message to the first network node, where the session creation response message includes the session identifier.

In an embodiment, the first receiving module is further configured to receive a session message sent by the first network node, where the session message includes the session identifier and session content;

The first sending module is further configured to: forward the session content to the second network node according to the session identifier and the second correspondence; wherein the forwarding message includes the session identifier and the Describe the conversation content.

In an embodiment, the session management device further includes a modification module;

The first receiving module is further configured to receive a session modification request sent by the first network node, where the session modification request includes the session identifier and content to be modified;

The modifying module is configured to modify the corresponding second correspondence according to the session modification request;

The first sending module is configured to send a session modification response to the first network node.

In an embodiment, the session management device further includes a first deletion module;

The first receiving module is further configured to receive a session deletion request sent by the first network node, where the session deletion request includes a session identifier to be deleted;

The first sending module is further configured to send a session deletion indication to the second network node, where the session deletion indication includes a session identifier to be deleted;

The first receiving module is further configured to receive a session deletion returned by the second network node a confirmation message; wherein the session deletion confirmation message includes a session identifier to be deleted;

The first deleting module is configured to delete the corresponding second correspondence according to the session identifier to be deleted;

The first sending module is further configured to send a session deletion response message to the first network node, where the session deletion response message includes the session identifier to be deleted.

In a fifth aspect, an embodiment of the present invention provides a first network node, where the first network node serves as an initiator of a session service, and includes: a second sending module and a second receiving module;

The second sending module is configured to send a session service request to the session management device, where the session management device is a session management device additionally set in a network node in the network architecture; the session service request includes a first network node Identification and session information;

The second receiving module is configured to receive a response message that is sent by the session management device corresponding to the session service request.

Correspondingly, the second receiving module is configured to receive a session creation response message sent by the session management device, where the session creation response message includes a session identifier.

In an embodiment, the second sending module is further configured to send a session message to the session management device, where the session message includes the session identifier and session content.

In an embodiment, the second sending module is further configured to send a session modification request to the session management device, where the session modification request includes the session identifier and content to be modified;

The second receiving module is further configured to receive a session modification response sent by the session management device.

In an embodiment, the first network node further includes a second deletion module;

The second sending module is further configured to send a session deletion request to the session management device, where the session deletion request includes a session identifier to be deleted;

The second receiving module is further configured to receive a session deletion response message sent by the session management device, where the session deletion response message includes a session identifier to be deleted;

The second deletion module is configured to delete the application context corresponding to the session identifier to be deleted by the first network node itself.

In a sixth aspect, the embodiment of the present invention provides a second network node, where the second network node includes: a third receiving module, a session context processing module, and a third sending module;

The third receiving module is configured to receive a session creation indication sent by the session management device, where the session management device is a session management device additionally set in a network node in the network architecture; the session creation indication includes a session identifier And the type of session;

The session context processing module is configured to establish a corresponding session context creation according to the session creation indication;

The third sending module is configured to feed back a create confirmation message to the session management device, where the create confirmation message includes a session identifier.

In an embodiment, the third receiving module is further configured to receive a forwarding message sent by the session management device, where the forwarding message includes the session identifier and session content;

The session context processing module is further configured to process the session content to the corresponding application context according to the session identifier.

In an embodiment, the third receiving module is further configured to receive a session deletion indication sent by the session management device, where the session deletion indication includes a session identifier to be deleted;

The session context processing module is further configured to delete the application context corresponding to the session identifier to be deleted by the second network node itself, and return a session deletion confirmation message to the session management device; The session deletion confirmation message includes the session identifier to be deleted.

In a seventh aspect, the embodiment of the present invention provides a session management system, where the system includes: a session management device, and a first network node that is a session service initiator;

The session management device is configured to receive a session service request sent by the first network node; The session service request includes a first network node identifier and session information.

And responding to the session service request according to the first correspondence between the session identifier and the first network node;

And sending a response message corresponding to the session service request to the first network node;

The first network node is configured to send a session service request to the session management device;

And receiving a response message that is sent by the session management device for the session service request.

In a seventh aspect, an embodiment of the present invention provides a computer readable storage medium storing computer executable instructions, the method for implementing the session management when the computer executable instructions are executed by a processor.

The embodiments of the present invention provide a method, a device, and a system for session management. By setting up an independent session management device in the network architecture, the session layer management and the application layer protocol are decoupled, and the session relationship is uniformly maintained, thereby reducing the session relationship. The burden of the application layer, and reduce the workload of network protocol development and post-maintenance.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a schematic diagram of a topology structure of a session connection relationship between network nodes;

2 is a schematic diagram of a SAE architecture;

FIG. 3 is a schematic diagram of a topology structure of a session connection relationship between network nodes according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart diagram of a session management method according to an embodiment of the present disclosure;

FIG. 5 is a schematic flowchart of a session creation according to an embodiment of the present invention;

FIG. 6 is a schematic flowchart of a session communication according to an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart of a session modification according to an embodiment of the present disclosure;

FIG. 8 is a schematic flowchart of a process for deleting a session according to an embodiment of the present disclosure;

FIG. 9 is a schematic flowchart of a session management according to an embodiment of the present invention;

10 is a schematic diagram of a path for a session management device to respond to a session service request according to an embodiment of the present invention;

FIG. 11 is a schematic flowchart of a session communication according to an embodiment of the present invention;

FIG. 12 is a schematic flowchart of a session modification according to an embodiment of the present invention;

FIG. 13 is a schematic flowchart of a session deletion according to an embodiment of the present disclosure;

FIG. 14 is a schematic flowchart of another session management according to an embodiment of the present invention;

FIG. 15 is a schematic flowchart of another session modification according to an embodiment of the present invention;

FIG. 16 is a schematic flowchart of another session deletion according to an embodiment of the present disclosure;

FIG. 17 is a schematic flowchart of still another session management according to an embodiment of the present invention;

FIG. 18 is a schematic flowchart of still another session communication according to an embodiment of the present invention;

FIG. 19 is a schematic flowchart of still another session deletion according to an embodiment of the present invention;

FIG. 20 is a schematic structural diagram of a session management device according to an embodiment of the present disclosure;

FIG. 21 is a schematic structural diagram of another session management device according to an embodiment of the present disclosure;

FIG. 22 is a schematic structural diagram of a first network node according to an embodiment of the present disclosure;

FIG. 23 is a schematic structural diagram of another first network node according to an embodiment of the present disclosure;

FIG. 24 is a schematic structural diagram of a second network node according to an embodiment of the present disclosure;

FIG. 25 is a schematic structural diagram of a session management system according to an embodiment of the present invention.

Detailed

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

Since the session relationship is maintained by the application layer of the network communication node, and the session process is included in the application layer protocol, in the network, the session connection relationship between the network nodes can be as shown in FIG. 1, and the two network nodes are The connection relationship between the sessions is maintained and managed by the respective applications. It can be seen that the current session connection relationship between the network nodes belongs to a point-to-point connection relationship.

Taking the current network architecture as an example, as shown in the System Architecture Evolution (SAE) architecture shown in Figure 2, it can be seen that the number of network nodes in the architecture is limited. Therefore, the session connection between network nodes is not The application layer of the system architecture creates a significant burden. However, with the richer types of services carried by the network in the future, such as virtual reality, tactile Internet, and Internet of Things, the session connection relationship of network nodes based on the current network architecture will not meet the throughput brought by these various services. Diversified requirements such as delay, reliability, and connection density. When faced with a large number of network nodes that can be flexibly deployed, continuing to use the existing session connection relationship will not only increase the load on the application layer of the network node caused by the difficulty of maintenance of the application layer, but also greatly increase the protocol formulation. And the workload of the later development and maintenance process.

The embodiment of the present invention is based on the basic requirements of the application layer of each network communication node in the current network architecture, and sets an additional session management device. Taking FIG. 3 as an example, the additionally set session management device is used as a central node, and The network node that needs the session connection connects the session to the central node of the session management device in a point-to-point manner, thereby forming a session connection relationship of the star topology, and any two network nodes in the star topology The session connection is controlled by the session management device as a central node, so that the session between the communication nodes can be uniformly maintained and managed, thereby reducing the burden on the application layer and reducing the workload of network protocol formulation and post-maintenance.

Embodiment 1

Referring to FIG. 4, a method for managing a session according to an embodiment of the present invention is shown. The method can be applied to the topology of a session connection relationship shown in FIG. 3. In the topology relationship shown in FIG. 3, the session management device is used. Is additionally set, the method can include:

S401: The first network node sends a session service request to the session management device.

The first network node is used as the session service initiator, and the sent session service request may include the identifier of the first network node and session information.

S402: The session management device responds to the session service request according to the first correspondence between the session identifier and the session service initiation node.

S403: The session management device sends a response message corresponding to the session service request to the first network node.

The session service request is of a variety of types, and may include a session creation request, where the session creation request identifier is an identifier of the first network node that is the session service initiator, and the session information is Including a session type, the session creation request further includes an identifier of the second network node that is the target end of the session service; therefore, the implementation of the technical solution may be as shown in FIG. 5,

S501: The first network node sends a session creation request to the session management device.

In the process of the scheme shown in FIG. 5, the first network node is the initiator of the session creation, and initiates a session to the second network node that is the target end of the creation session. Therefore, based on the topology of the session connection shown in FIG. 3, the session creation request can be sent to the session management device without directly sending a session creation request to the target end of the creation session.

The session creation request (Create Session Request) may include: an identifier of the first network node as the initiator, a session type, and an identifier of the second network node as the target end;

In the implementation process, the first network node identifier may be the transport layer address information of the first network node, and may include the displayed address information, such as an IP address and a session port of the first network node, or may be an implicit address information. For example, a Uniform Resource Locator (URL) that needs to be converted by a Domain Name System (DNS);

The session type is related to the application for the session. The main purpose is to inform the session type created by the second node as the target end, for example, the node type or the user level session type, or further extend the session type according to the actual application;

The second network node identifier may be the transport layer address information of the second network node, and may include the displayed address information, such as the IP address of the second network node and the session port (Port); or may be implicit address information, such as A URL (Uniform Resource Locator) that is converted by a DNS (Domain Name System); or a node type that is only a target end, so that a session creation request can be sent to the network architecture. The load balancing module corresponding to the specified node type selects a second network node as the target end from the cluster of the target end node through the load balancing module.

S502: The session management device sets a corresponding session identifier for the session creation request, and establishes a first correspondence between the session identifier and the session type and the first network node identifier according to the session creation request.

The session management device may establish a corresponding session record for the session creation request; the session management device may be a correspondence relationship table, and the session management device allocates a primary key Session Id, that is, the session identifier, to the correspondence relationship table for the session creation request. And, the session management device can obtain the session type (Session Type) and the first network node identifier (Peer TnlAddr1) by parsing the session creation request; and in the correspondence table, the assigned primary key and session type and the first The network node identifier establishes a correspondence, which is enumerated and not limited. The correspondence table can be as shown in Table 1:

Table 1

In Table 1, the form of the Session Id can be in the form of a number (Number); the Session Type can be in the form of an enumeration (Enum), and the session management device can select a corresponding session type from the existing enumeration alternatives; Peer TnlAddr1 can It is an IP address and a session port (Port) form; understandably, the correspondence table may further include a second network node identifier (Peer TnlAddr2), and other fields (Ext) extended according to the session management needs of the application; The second network node that is the target end does not know the session creation request, so the session management device may leave the Peer TnlAddr2 in the correspondence table as shown in Table 1 at this time, and the corresponding relationship table in the session record indicates The content is the first correspondence.

S503: The session management device sends a session creation indication to the second network node according to the first correspondence.

The session creation indication (Create Session Indication) may include a session identifier and a session type.

S504: The second network node establishes a corresponding session context creation according to the session creation indication.

The second network node may perform necessary context creation work at the application layer according to the session type (Session Type), and save the primary key Session Id for subsequent session communication;

S505: The second network node feeds back a create confirmation message to the session management device.

The Create Session Confirmation may include a session identifier (Session Id) for prompting the session management device that the second network node has completed the context creation of the session corresponding to the session identifier.

S506: The session management device establishes a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier according to the create confirmation message.

After receiving the creation confirmation message, the session management device may find the corresponding correspondence table according to the primary key Session Id included in the creation confirmation message, and supplement the second network node identifier (Peer TnlAddr2) corresponding to the primary key SessionId. The complete, obtained second correspondence is the complete session record after the perfection.

S507: The session management device sends a session creation response message to the first network node.

The session creation response message (Create Session Response) includes a session identifier; it may be a primary key Session Id. After receiving the session establishment response message, the first network node may include the primary key Session Id for subsequent session communication.

The process shown in FIG. 5 may define a session creation request and a session creation response primitive between the first network node and the session management device; and may also define a session creation indication and session creation between the session management device and the second network node. Confirm the original. The actual definition process is not described in this embodiment.

Illustratively, after the first network node and the second network node establish a session through the process shown in FIG. 5, session communication can be performed; therefore, as shown in FIG. 6, the first network node is the sender of the session message. The second network node is a receiver of the session message. The process of the session between the network nodes may include:

S601: The first network node sends a session message to the session management device.

The session message includes a session identifier and a session content.

S602: The session management device forwards the session content to the second network node according to the session identifier and the second correspondence.

The forwarding message includes a session identifier and a session content.

The session management device may query the second correspondence according to the session identifier in the session message, so that the second network node identifier may be obtained from the second correspondence, and the session content and the session identifier are encapsulated into the forwarding message, according to the query. The obtained second network identifier sends a forwarding message to the second network node, thereby implementing a process of forwarding the session content.

S603: After receiving the forwarding message, the second network node delivers the session content to its corresponding application context according to the session identifier for processing.

The process shown in Figure 6 can also define two primitives:

a message sending primitive between the first network node and the session management device;

For example: SendMsg (Session Id, Msg): wherein Session Id is used by the session management device session layer to find a session record, and the message Msg is delivered to the second network node through the transport layer;

a message receiving primitive between the second network node and the session management device;

For example: RecvMsg (Session Id, Msg): The Session Id is used by the second network node to deliver the message Msg to its corresponding application context for processing.

Illustratively, in the process of establishing a session and performing session communication by the first network node and the second network node through the process shown in FIG. 5, either party of the session will modify the session, as shown in FIG. 7 For a detailed process of the modification, it can be understood that the session modification can be either a first network node or a second network node. In this embodiment, the first network node is used as an example for description, and those skilled in the art may not need to be creative. The labor can apply the solution shown in FIG. 7 to the case where the second network node modifies the session. The process shown in FIG. 7 may include:

S701: The first network node sends a session modification request to the session management device.

The session modification request (Modify Session Request) may include a session identifier (Session Id) and content to be modified, for example, a new identifier of the first network node when the address of the first network node changes; or a first network In the node, when the application for session management changes, the content of the extended field (Ext) that needs to be changed, etc.;

S702: The session management device modifies the corresponding second correspondence according to the session modification request.

The session management device may query the second correspondence according to the session identifier (Session Id). And modifying the corresponding content in the second correspondence according to the content to be modified.

S703: The session management device sends a Modify Session Response to the first network node.

Thus, the flow of session modification is implemented by the scheme shown in FIG. The process shown in Figure 6 can also define two primitives: a session modification request and a session modification response primitive between the network node and the session management device.

Illustratively, in the process of establishing a session and performing session communication by the first network node and the second network node through the process shown in FIG. 5, either party of the session deletes the session, in the session shown in FIG. In the detailed process of the deletion, the deleted initiator is the first network node, and the associated party of the deleted session is the second network node. Therefore, the session deletion process may include:

S801: The first network node sends a session deletion request to the session management device.

The session deletion request (Delete Session Request) may include a session identifier (Session Id) to be deleted;

S802: The session management device sends a session deletion indication to the second network node.

The session deletion indication (Delete Session Indication) may include a session identifier (Session Id) to be deleted;

It can be understood that the second network node is the second network node identifier corresponding to the session identifier in the second correspondence, and therefore, the session management device can send the session deletion indication to the second network node.

S803: The second network node deletes the application context corresponding to the session identifier to be deleted, and returns a session deletion confirmation message to the session management device.

The session deletion confirmation message (Delete Session Confirmation) includes a session identifier (Session Id) to be deleted.

S804: The session management device deletes the corresponding second correspondence according to the session identifier to be deleted, and sends a session deletion response message to the first network node.

The session deletion response message (Delete Session Response) includes a session identifier (Session Id) to be deleted.

S805: The first network node deletes the application context corresponding to the session identifier to be deleted.

Thus, the process of session deletion is implemented by the scheme shown in FIG. It should be noted that the process shown in Figure 8 can define four primitives:

a session deletion request and a session deletion response primitive between the first network node and the session management device; and a session deletion indication and a session deletion confirmation primitive between the session management device and the second network node.

Based on the topology of the session connection relationship shown in FIG. 3, this embodiment uses the flow shown in FIG. 5 to FIG. 8 to perform common operation scenarios, such as session creation and session communication, in the session service shown in FIG. The technical solution implementation of scenarios such as session modification and session deletion is described.

The method for session management provided by the embodiment provides centralized control of session management and session transmission between nodes through an additionally set session management device, thereby enabling unified maintenance of sessions between network nodes and Management, which reduces the burden on the application layer and reduces the workload of network protocol development and post-maintenance.

Embodiment 2

Referring to FIG. 9, a method for session management applied to a session management device according to an embodiment of the present invention is provided. The method may include:

S901: The session management device receives a session service request sent by the session service initiation node.

The session service request includes a session service initiation node identifier and session information.

S902: The session management device responds to the session service request according to the first correspondence between the session identifier and the session service initiation node.

S903: The session management device sends a response message corresponding to the session service request to the session service initiation node.

Illustratively, the session service request may include a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node as a session service initiator, the session information includes a session type, and the session creation The request further includes an identifier of the second network node that is the target end of the session service;

Accordingly, referring to FIG. 10, step S902, that is, the session management device is targeted to the session industry. The service request responds according to the first correspondence between the session identifier and the session service originating node, including:

S9021: The session management device sets a corresponding session identifier for the session creation request, and establishes a first correspondence between the session identifier and the session type and the first network node identifier according to the session creation request.

S9022: The session management device sends a session creation indication to the second network node according to the first correspondence relationship.

The session creation indication includes the session identifier and the session type.

S9023: The session management device receives the creation confirmation message sent by the second network node, and establishes a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier according to the create confirmation message. ;

The creation confirmation message includes the session identifier.

Correspondingly, the step S903, that is, the session management device sends a response message corresponding to the session service request to the session service initiation node, the method may include: the session management device sends a session creation response message to the first network node;

The session creation response message includes the session identifier.

It can be understood that the solution shown in FIG. 10 is a process for session creation by the session management device side; in addition, the common operation scenarios in the session connection include session communication, session modification, and session deletion, therefore:

For session communication, referring to FIG. 11, the method further includes:

S1101: The session management device receives the session message sent by the first network node.

The session message includes the session identifier and session content.

S1102: The session management device forwards the session content to the second network node according to the session identifier and the second correspondence.

The forwarding message includes the session identifier and the session content.

For session modification, see FIG. 12, the method further includes:

S1201: The session management device receives a session modification request sent by the first network node; The session modification request includes the session identifier and content to be modified;

S1202: The session management device modifies the corresponding second correspondence according to the session modification request.

S1203: The session management device sends a session modification response to the first network node.

For session deletion, referring to FIG. 13, the method further includes:

S1301: The session management device receives a session deletion request sent by the first network node.

The session deletion request includes a session identifier to be deleted;

S1302: The session management device sends a session deletion indication to the second network node.

The session deletion indication includes a session identifier to be deleted.

S1303: The session management device receives a session deletion confirmation message returned by the second network node.

The session deletion confirmation message includes a session identifier to be deleted.

S1304: The session management device deletes the corresponding second correspondence according to the session identifier to be deleted, and sends a session deletion response message to the first network node.

The session deletion response message includes the session identifier to be deleted.

Embodiment 3

Referring to FIG. 14 , a method for applying session management of a first network node as an initiator is provided. The method may include:

S1401: Send a session service request to the session management device.

The session management device is an additional session management device in a network node in the network architecture; the session service request includes a first network node identifier and session information;

S1402: Receive a response message that is sent by the session management device corresponding to the session service request.

Exemplarily, the session service request includes: a session creation request;

The session service initiation node identifier is: an identifier of the first network node that is a session service initiator, the session information includes a session type, and the session creation request is further included. The identifier of the second network node that is the target end of the session service;

Correspondingly, the response message corresponding to the session service request is sent to receive a session creation response message sent by the session management device;

The session creation response message includes a session identifier.

It can be understood that the solution of the above example is the process of session creation by the first network node side; in addition, the common operation scenarios in the session connection include session communication, session modification, and session deletion, therefore:

For session communication, the method further includes:

Sending, by the first network node, a session message to the session management device;

The session message includes the session identifier and session content.

For the session modification, referring to FIG. 15, the method further includes:

S1501: The first network node sends a session modification request to the session management device.

The session modification request includes the session identifier and content to be modified;

S1502: The first network node receives the session modification response sent by the session management device.

For the session deletion, referring to FIG. 16, the method further includes:

S1601: The first network node sends a session deletion request to the session management device.

The session deletion request includes a session identifier to be deleted;

S1602: The first network node receives a session deletion response message sent by the session management device.

The session deletion response message includes a session identifier to be deleted.

S1603: The first network node deletes the application context corresponding to the session identifier to be deleted.

Embodiment 4

Referring to FIG. 17, a method for applying session management to a second network node as a target end according to an embodiment of the present invention is provided. The method may include:

S1701: Receive a session creation indication sent by the session management device.

The session creation indication includes a session identifier and a session type.

S1702: Create a corresponding session context creation according to the session creation indication.

S1503: Feed back a create confirmation message to the session management device, where the create confirmation message includes a session identifier.

For session communication, referring to FIG. 18, the method further includes:

S1801: The second network node receives a forwarding message sent by the session management device.

The forwarding message includes the session identifier and session content.

S1802: After receiving the forwarding message, the second network node delivers the session content to its corresponding application context according to the session identifier for processing.

For the session deletion, referring to FIG. 19, the method further includes:

S1901: The second network node receives the session deletion indication sent by the session management device.

The session deletion indication includes a session identifier to be deleted.

S1902: The second network node deletes the application context corresponding to the session identifier to be deleted, and returns a session deletion confirmation message to the session management device.

The session deletion confirmation message includes the session identifier to be deleted.

Embodiment 5

Referring to FIG. 20, a session management device 200 is provided in the embodiment of the present invention. The session management device 200 may include: a first receiving module 2001, a response module 2002, and a first sending module 2003;

The first receiving module 2001 is configured to receive a session service request sent by the session service initiating node, where the session service request includes a session service initiating node identifier and session information;

The response module 2002 is configured to respond to the session service request according to a first correspondence between the session identifier and the session service originating node;

The first sending module 2003 is configured to send a response message corresponding to the session service request to the session service initiating node.

In the above solution, the session service request includes a session creation request; wherein the conference The service initiation node identifier is: an identifier of the first network node that is a session service initiator, the session information includes a session type, and the session creation request further includes an identifier of a second network node that is a target end of the session service;

Correspondingly, the response module 2002 is configured to set a corresponding session identifier for the session creation request, and establish a relationship between the session identifier and the session type and the first network node identifier according to the session creation request. First correspondence;

The first sending module 2003 is configured to send a session creation indication to the second network node according to the first correspondence relationship, where the session creation indication includes the session identifier and the session type;

The first receiving module 2001 is further configured to receive a creation confirmation message sent by the second network node, where the creation confirmation message includes the session identifier;

The response module 2002 is further configured to establish, according to the create confirmation message, a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier;

The first sending module 2003 is further configured to send a session creation response message to the first network node, where the session creation response message includes the session identifier.

In the above solution, the first receiving module 2001 is further configured to receive a session message sent by the first network node, where the session message includes the session identifier and session content;

The first sending module 2003 is further configured to forward the session content to the second network node according to the session identifier and the second correspondence, where the forwarding message includes the session identifier and The conversation content.

In the above solution, referring to FIG. 21, the session management device 200 further includes a modification module 2004;

The first receiving module 2001 is further configured to receive a session modification request sent by the first network node, where the session modification request includes the session identifier and content to be modified;

The modifying module 2004 is configured to modify the corresponding first according to the session modification request Two correspondences;

The first sending module 2003 is configured to send a session modification response to the first network node.

In the above solution, referring to FIG. 21, the session management device 200 further includes a first deletion module 2005;

The first receiving module 2001 is further configured to receive a session deletion request sent by the first network node, where the session deletion request includes a session identifier to be deleted;

The first sending module 2003 is further configured to send a session deletion indication to the second network node, where the session deletion indication includes a session identifier to be deleted;

The first receiving module 2001 is further configured to receive a session deletion confirmation message returned by the second network node, where the session deletion confirmation message includes a session identifier to be deleted;

The first deleting module 2005 is configured to delete the corresponding second correspondence according to the session identifier to be deleted;

The first sending module 2003 is further configured to send a session deletion response message to the first network node, where the session deletion response message includes the session identifier to be deleted.

Embodiment 6

Referring to FIG. 22, a structure of a first network node 220 is provided. The first network node 220 includes: a second sending module 2201 and a second receiving module 2202;

The second sending module 2201 is configured to send a session service request to the session management device, where the session management device is a session management device additionally set in a network node in the network architecture; the session service request includes the first network Node identification and session information;

The second receiving module 2202 is configured to receive a response message that is sent by the session management device for the session service request.

In the above solution, the session service request includes: a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node that is a session service initiator, and the session information includes a session type. The session creation request further includes an identifier of the second network node that is the target end of the session service;

Correspondingly, the second receiving module 2202 is configured to receive a session creation response message sent by the session management device, where the session creation response message includes a session identifier.

In the above solution, the second sending module 2201 is further configured to send a session message to the session management device, where the session message includes the session identifier and session content.

In the foregoing solution, the second sending module 2201 is further configured to send a session modification request to the session management device, where the session modification request includes the session identifier and content to be modified;

The second receiving module 2202 is further configured to receive a session modification response sent by the session management device.

In the above solution, referring to Figure 23, the first network node 220 further includes a second deletion module 2203;

The second sending module 2201 is further configured to send a session deletion request to the session management device, where the session deletion request includes a session identifier to be deleted;

The second receiving module 2202 is further configured to receive a session deletion response message sent by the session management device, where the session deletion response message includes a session identifier to be deleted;

The second deletion module 2203 is further configured to delete the application context corresponding to the session identifier to be deleted by the first network node itself.

Example 7

Referring to FIG. 24, a second network node 240 is provided in the embodiment of the present invention. The second network node 240 may include: a third receiving module 2401, a session context processing module 2402, and a third sending module 2403. ,

The third receiving module 2401 is configured to receive a session creation indication sent by the session management device, where the session creation indication includes a session identifier and a session type;

The session context processing module 2402 is configured to establish a corresponding session context creation according to the session creation indication;

The third sending module 2403 is configured to feed back a create confirmation message to the session management device, where the create confirmation message includes a session identifier.

In the foregoing solution, the third receiving module 2401 is further configured to receive a forwarding message sent by the session management device, where the forwarding message includes the session identifier and session content;

The session context processing module 2402 is further configured to process the session content to the corresponding application context according to the session identifier.

In the foregoing solution, the third receiving module 2401 is further configured to receive a session deletion indication sent by the session management device, where the session deletion indication includes a session identifier to be deleted;

The session context processing module 2402 is further configured to delete the application context corresponding to the session identifier to be deleted by the second network node itself, and return a session deletion confirmation message to the session management device; The session deletion confirmation message includes the session identifier to be deleted.

Example eight

Referring to FIG. 25, a structure of a session management system 250 according to an embodiment of the present invention is shown. The system 250 may include: a session management device 200, and a first network node 220 as an initiator;

The session management device 240 is configured to receive a session service request sent by the first network node 220, where the session service request includes a first network node 220 identifier and session information;

And responding to the session service request according to the first correspondence between the session identifier and the first network node 220;

And sending a response message corresponding to the session service request to the first network node 220;

The first network node 220 is configured to send a session service request to the session management device 200;

And receiving a response message that is sent by the session management device 200 for the session service request.

Embodiments of the present invention provide a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed by a processor.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the application can take the form of a hardware embodiment, a software embodiment, or an embodiment in combination with software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above description is only for the embodiments of the present invention, and is not intended to limit the scope of the present application.

Industrial applicability

In the embodiment of the present invention, an independent session management device is set in the network architecture, the session layer management and the application layer protocol are decoupled, and the session relationship is uniformly maintained, thereby reducing the burden on the application layer and reducing network protocol formulation and post-maintenance. The amount of work.

Claims

A method for session management, the method being applied to a session management device additionally set in a network node within a network architecture, the method comprising:

The session management device receives a session service request sent by the session service initiation node, where the session service request includes a session service initiation node identifier and session information;

The session management device responds to the session service request according to a first correspondence between the session identifier and the session service originating node;

The session management device sends a response message corresponding to the session service request to the session service initiation node.
The method according to claim 1, wherein the session service request comprises a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node as a session service initiator, the session information Including a session type, the session creation request further includes an identifier of a second network node that is a target end of the session service;

Correspondingly, the session management device responds to the session service request according to the first correspondence between the session identifier and the session service initiation node, including:

The session management device sets a corresponding session identifier for the session creation request, and establishes a first correspondence between the session identifier and the session type and the first network node identifier according to the session creation request;

The session management device sends a session creation indication to the second network node according to the first correspondence relationship, where the session creation indication includes the session identifier and the session type;

The session management device receives the creation confirmation message sent by the second network node, and establishes a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier according to the create confirmation message. Wherein the creation confirmation message includes the session identifier;

Correspondingly, the session management device sends a response message corresponding to the session service request to the session service initiation node, including:

The session management device sends a session creation response message to the first network node; wherein the session creation response message includes the session identifier.
The method of claim 2, the method further comprising:

Receiving, by the session management device, a session message sent by the first network node, where the session message includes the session identifier and session content;

And the session management device forwards the session content to the second network node according to the session identifier and the second correspondence, where the forwarding message includes the session identifier and the session content.
The method of claim 2, the method further comprising:

Receiving, by the session management device, a session modification request sent by the first network node, where the session modification request includes the session identifier and content to be modified;

The session management device modifies the corresponding second correspondence according to the session modification request;

The session management device sends a session modification response to the first network node.
The method of claim 2, the method further comprising:

Receiving, by the session management device, a session deletion request sent by the first network node, where the session deletion request includes a session identifier to be deleted;

The session management device sends a session deletion indication to the second network node, where the session deletion indication includes a session identifier to be deleted;

Receiving, by the session management device, a session deletion confirmation message returned by the second network node, where the session deletion confirmation message includes a session identifier to be deleted;

The session management device deletes the corresponding second correspondence according to the session identifier to be deleted, and sends a session deletion response message to the first network node, where the session deletion response message includes the The session ID to be deleted.
A method for session management, the method being applied to a first network node as a session service initiator, the method comprising:

Sending a session service request to the session management device; wherein the session management device is a session management device additionally set in a network node in the network architecture; the session service request includes a first network node identifier and session information;

Receiving a response message sent by the session management device corresponding to the session service request.
The method according to claim 6, wherein the session service request comprises: a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node as a session service initiator, the session The information includes a session type, and the session creation request further includes an identifier of the second network node that is the target end of the session service;

Correspondingly, the response message correspondingly sent for the session service request includes a session creation response message; wherein the session creation response message includes a session identifier.
The method of claim 7 further comprising:

The first network node sends a session message to the session management device; wherein the session message includes the session identifier and session content.
The method of claim 7 further comprising:

Transmitting, by the first network node, a session modification request to the session management device, where the session modification request includes the session identifier and content to be modified;

The first network node receives a session modification response sent by the session management device.
The method of claim 7 further comprising:

Sending, by the first network node, a session deletion request to the session management device, where the session deletion request includes a session identifier to be deleted;

Receiving, by the first network node, a session deletion response message sent by the session management device, where the session deletion response message includes a session identifier to be deleted;

The first network node deletes the application context corresponding to the session identifier to be deleted.
A session management method, the method being applied to a second network node, the method comprising:

Receiving a session creation indication sent by the session management device; wherein the session management device is a session management device additionally set in a network node in the network architecture; the session creation indication includes a session identifier and a session type;

Establishing a corresponding session context creation according to the session creation indication;

Sending a confirmation message to the session management device; wherein the creation confirmation message includes Session ID.
The method of claim 11 further comprising:

Receiving, by the second network node, a forwarding message sent by the session management device, where the forwarding message includes the session identifier and session content;

The second network node delivers the session content to its corresponding application context according to the session identifier for processing.
The method of claim 11 further comprising:

Receiving, by the second network node, a session deletion indication sent by the session management device, where the session deletion indication includes a session identifier to be deleted;

The second network node deletes the application context corresponding to the session identifier to be deleted, and returns a session deletion confirmation message to the session management device, where the session deletion confirmation message includes the to-be-deleted Session ID.
A session management device, the session management device includes: a first receiving module, a response module, and a first sending module;

The first receiving module is configured to receive a session service request sent by the session service initiating node, where the session service request includes a session service initiating node identifier and session information;

The response module is configured to respond to the session service request according to a first correspondence between the session identifier and the session service originating node;

The first sending module is configured to send a response message corresponding to the session service request to the session service initiating node.
The session management device according to claim 14, wherein the session service request comprises a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node as a session service initiator, The session information includes a session type, and the session creation request further includes an identifier of the second network node that is the target end of the session service;

Correspondingly, the response module is configured to set a corresponding session identifier for the session creation request, and establish a relationship between the session identifier and the session type and the first network node identifier according to the session creation request. First correspondence

The first sending module is configured to send a session creation indication to the second network node according to the first correspondence, where the session creation indication includes the session identifier and the session type;

The first receiving module is further configured to receive a creation confirmation message sent by the second network node, where the creation confirmation message includes the session identifier;

The response module is further configured to establish, according to the create confirmation message, a second correspondence between the session identifier and the session type, the first network node identifier, and the second network node identifier;

Correspondingly, the first sending module is further configured to send a session creation response message to the first network node, where the session creation response message includes the session identifier.
The session management device according to claim 15, wherein the first receiving module is further configured to receive a session message sent by the first network node, where the session message includes the session identifier and session content;

The first sending module is further configured to: forward the session content to the second network node according to the session identifier and the second correspondence; wherein the forwarding message includes the session identifier and the Describe the conversation content.
The session management device according to claim 15, wherein the session management device further comprises a modification module;

The first receiving module is further configured to receive a session modification request sent by the first network node, where the session modification request includes the session identifier and content to be modified;

The modifying module is configured to modify the corresponding second correspondence according to the session modification request;

The first sending module is configured to send a session modification response to the first network node.
The session management device according to claim 15, the session management device further comprising a first deletion module;

The first receiving module is further configured to receive a session deletion request sent by the first network node, where the session deletion request includes a session identifier to be deleted;

The first sending module is further configured to send a session deletion indication to the second network node, where the session deletion indication includes a session identifier to be deleted;

The first receiving module is further configured to receive a session deletion confirmation message returned by the second network node, where the session deletion confirmation message includes a session identifier to be deleted;

The first deleting module is configured to delete the corresponding second correspondence according to the session identifier to be deleted;

The first sending module is further configured to send a session deletion response message to the first network node, where the session deletion response message includes the session identifier to be deleted.
a first network node, where the first network node serves as an initiator of the session service, and includes: a second sending module and a second receiving module;

The second sending module is configured to send a session service request to the session management device, where the session management device is a session management device additionally set in a network node in the network architecture; the session service request includes a first network node Identification and session information;

The second receiving module is configured to receive a response message that is sent by the session management device corresponding to the session service request.
The first network node according to claim 19, wherein the session service request comprises: a session creation request; wherein the session service initiation node identifier is: an identifier of the first network node as a session service initiator, The session information includes a session type, and the session creation request further includes an identifier of a second network node that is a target end of the session service;

Correspondingly, the second receiving module is configured to receive a session creation response message sent by the session management device, where the session creation response message includes a session identifier.
The first network node according to claim 19, wherein the second sending module is further configured to send a session message to the session management device; wherein the session message includes the session identifier and session content.
The first network node according to claim 19, wherein the second sending module is further configured to send a session modification request to the session management device; wherein the session modification request includes the session identifier and needs to be modified Content;

The second receiving module is further configured to receive a session modification response sent by the session management device.
The first network node according to claim 19, the first network node further comprising Second deletion module;

The second sending module is further configured to send a session deletion request to the session management device, where the session deletion request includes a session identifier to be deleted;

The second receiving module is further configured to receive a session deletion response message sent by the session management device, where the session deletion response message includes a session identifier to be deleted;

The second deletion module is configured to delete the application context corresponding to the session identifier to be deleted by the first network node itself.
A second network node, where the second network node includes: a third receiving module, a session context processing module, and a third sending module;

The third receiving module is configured to receive a session creation indication sent by the session management device, where the session management device is a session management device additionally set in a network node in the network architecture; the session creation indication includes a session identifier And the type of session;

The session context processing module is configured to establish a corresponding session context creation according to the session creation indication;

The third sending module is configured to feed back a create confirmation message to the session management device, where the create confirmation message includes a session identifier.
The second network node according to claim 24, wherein the third receiving module is further configured to receive a forwarding message sent by the session management device; wherein the forwarding message includes the session identifier and session content ;

The session context processing module is further configured to process the session content to the corresponding application context according to the session identifier.
The second network node according to claim 24, wherein the third receiving module is further configured to receive a session deletion indication sent by the session management device; wherein the session deletion indication comprises a session identifier to be deleted ;

The session context processing module is further configured to delete the application context corresponding to the session identifier to be deleted by the second network node itself, and return a session deletion confirmation message to the session management device; The session deletion confirmation message includes the session identifier to be deleted.
A session management system, the system comprising: a session management device, as a session service a first network node at the originating end; wherein

The session management device is configured to receive a session service request sent by the first network node, where the session service request includes a first network node identifier and session information;

And responding to the session service request according to the first correspondence between the session identifier and the first network node;

And sending a response message corresponding to the session service request to the first network node;

The first network node is configured to send a session service request to the session management device;

And receiving a response message that is sent by the session management device for the session service request.