CN114302505A - Session connection method and network function entity - Google Patents
Session connection method and network function entity Download PDFInfo
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Abstract
The application discloses a session connection method and a network function entity, and belongs to the technical field of communication. The method comprises the following steps: under the condition that the first network resource can not meet the service requirement of the terminal, a resource acquisition request is sent to a second network functional entity; receiving access indication information returned by the second network functional entity; sending the access indication information to the terminal so that the terminal initiates an access request to the second network based on the access indication information; and establishing a multi-connection session according to the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a session connection method and a network function entity.
Background
In a fifth Generation Mobile Communication Technology (5G) network, a Communication operator supports users to use Guaranteed Bit Rate (GBR) traffic, i.e., when a User Equipment (UE) establishes a data connection, it may request a fixed data transmission Bit Rate from an accessed network so that the UE can use a desired traffic (e.g., a traffic with a high requirement on network bandwidth).
In practical applications, if the access network (including the core network and/or the access network) cannot provide sufficient network resources to the UE, the data transmission bit rate may not meet the requirement of the GBR service, and thus the user cannot use the desired service.
Disclosure of Invention
Therefore, the application provides a session connection method and a network function entity to solve the problem that the access network cannot provide enough network resources for the terminal, so that the user cannot use the expected service.
In order to achieve the above object, a first aspect of the present application provides a session connection method, including:
sending a resource acquisition request to a second network functional entity under the condition that a first network resource cannot meet the service requirement of a terminal, wherein the first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, the second network functional entity is a functional entity in a second network, and the second network is a network which can provide network resources for the terminal except the first network;
receiving access indication information returned by the second network functional entity, wherein the access indication information is returned by the second network when determining that a second network resource can be provided for the terminal, and the second network resource is a network resource in the second network determined according to the resource acquisition request;
sending the access indication information to the terminal so that the terminal initiates an access request to the second network based on the access indication information;
and establishing a multi-connection session according to the first network resource and a second network resource, wherein the multi-connection session is used for bearing the service requirement of the terminal, and the second network resource is a network resource allocated to the terminal by the second network under the condition that the second network receives an access request sent by the terminal.
Further, the sending a resource acquisition request to a second network function entity under the condition that the first network resource cannot meet the service requirement of the terminal includes:
receiving a service requirement sent by the terminal;
determining the second network under the condition that the first network resource cannot meet the service requirement of the terminal;
acquiring a user identifier of the second network, wherein the user identifier of the second network is the user identifier of the terminal in the second network;
calculating a resource difference according to the service requirement of the terminal and the first network resource;
generating the resource acquisition request according to the user identification of the second network and the resource difference;
and sending the resource acquisition request to the second network function entity.
Further, the determining the second network when the first network resource cannot meet the service requirement of the terminal includes:
acquiring signal coverage network information of the terminal and/or network connection records of the terminal;
and determining the second network according to a preset strategy of the first network, the signal coverage network information of the terminal and/or the network connection record of the terminal, wherein the preset strategy is a preset strategy for selecting the second network.
Further, the obtaining the user identifier of the second network includes:
under the condition that the terminal has an order service to the second network, determining a user identifier of the second network according to account information corresponding to the order service, wherein the account information corresponding to the order service is information acquired from the terminal;
and under the condition that the terminal does not have the subscribed service to the second network, generating a temporary identifier for the terminal, and using the temporary identifier as a user identifier of the second network.
Further, the establishing a multi-connection session according to the first network resource and the second network resource includes:
establishing a first connection session according to the first network resource;
and sending the session identifier of the first connection session to the second network function entity, so that the second network function entity adds a second connection session to the first connection session according to the session identifier of the first connection session to obtain the multi-connection session, wherein the second connection session is a session established by the second network function entity in the second network according to the second network resource.
In order to achieve the above object, a second aspect of the present application provides a session connection method, including:
receiving a resource acquisition request sent by a first network functional entity, wherein the resource acquisition request is sent under the condition that a first network resource cannot meet the service requirement of a terminal, the first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, and the first network functional entity is a functional entity located in the first network;
under the condition that a second network resource is determined to be provided for the terminal, generating and sending access indication information to the first network function entity, wherein the second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network which can provide network resources for the terminal except the first network;
responding to an access request sent by the terminal, and accessing the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
and allocating a second network resource to the terminal so that the first network functional entity can establish a multi-connection session according to the first network resource and the second network resource.
Further, after receiving the resource acquisition request sent by the first network function entity, before generating and sending the access indication information to the first network function entity when determining to provide the second network resource for the terminal, the method further includes:
determining a resource difference according to the resource acquisition request, wherein the resource difference is determined according to the service requirement of the terminal and the first network resource;
acquiring information of a third network resource, wherein the third network resource is a network resource for opening a use permission of the terminal by the second network;
and obtaining a resource providing result according to the resource difference and the information of the third network resource, wherein the resource providing result is used for representing whether the second network can provide the second network resource for the terminal.
Further, the allocating a second network resource to the terminal for the first network function entity to establish a multi-connection session according to the first network resource and the second network resource includes:
establishing a second connection session according to the second network resource;
receiving a session identifier of a first connection session sent by the first network function entity, wherein the first connection session is a session established by the first network function entity according to the first network resource;
and adding the second connection session into the first connection session according to the session identifier of the first connection session to obtain the multi-connection session.
In order to achieve the above object, a third aspect of the present application provides a network function entity, including:
a first sending module, configured to send a resource obtaining request to a second network function entity when a first network resource cannot meet a service requirement of a terminal, where the first network resource is a network resource in a first network, the first network is a network that provides network resources for the terminal, the second network function entity is a function entity located in a second network, and the second network is a network that can provide network resources for the terminal except the first network;
a first receiving module, configured to receive access indication information returned by the second network functional entity, where the access indication information is information returned by the second network in a case where it is determined that a second network resource can be provided for the terminal, and the second network resource is a network resource in the second network determined according to the resource acquisition request;
a second sending module configured to send the access indication information to the terminal, so that the terminal initiates an access request to the second network based on the access indication information;
a session module configured to establish a multi-connection session according to the first network resource and a second network resource, where the multi-connection session is used to carry a service requirement of the terminal, and the second network resource is a network resource allocated to the terminal by the second network when receiving an access request sent by the terminal.
In order to achieve the above object, a fourth aspect of the present application provides a network function entity, including:
a second receiving module, configured to receive a resource acquisition request sent by a first network functional entity, where the resource acquisition request is a request sent when a first network resource cannot meet a service requirement of a terminal, the first network resource is a network resource in a first network, the first network is a network that provides network resources for the terminal, and the first network functional entity is a functional entity located in the first network;
a generating module configured to generate access indication information in a case that it is determined that a second network resource can be provided for the terminal, where the second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network that can provide network resources for the terminal except the first network;
a third sending module configured to send the access indication information to the first network function entity;
the access module is configured to respond to an access request sent by the terminal and access to the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
an allocation module configured to allocate a second network resource to the terminal, so that the first network function entity establishes a multi-connection session according to the first network resource and the second network resource.
In order to achieve the above object, a fifth aspect of the present application provides an electronic apparatus comprising:
one or more processors;
a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement any of the session connection methods of the embodiments of the present application.
In order to achieve the above object, a sixth aspect of the present application provides a readable storage medium storing a computer program, which when executed by a processor, implements any one of the session connection methods in the embodiments of the present application.
This application has following advantage:
according to the session connection method and the network function entity, under the condition that the first network resource cannot meet the service requirement of the terminal, a resource acquisition request is sent to the second network function entity, access indication information returned by the second network function entity is received, and the access indication information is sent to the terminal; the terminal initiates an access request to a second network based on the access indication information, and the second network responds to the access request to allocate second network resources for the terminal; the first network establishes a multi-connection session based on the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application.
Fig. 1 is a flowchart of a session connection method according to an embodiment of the present application;
fig. 2 is a flowchart of a session connection method according to another embodiment of the present application;
fig. 3 is a flowchart of a session connection method according to still another embodiment of the present application;
fig. 4 is a flowchart of a session connection method according to another embodiment of the present application;
fig. 5 is a block diagram illustrating a network function entity according to an embodiment of the present application;
fig. 6 is a block diagram illustrating a network function entity according to another embodiment of the present application;
fig. 7 is a block diagram illustrating a session connection system according to an embodiment of the present disclosure;
fig. 8 is a schematic signaling interaction diagram of a session connection system according to an embodiment of the present application;
fig. 9 is a block diagram of an electronic device for implementing a session connection method according to an embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application.
At present, many Applications (APPs) support a multi-path connection method, that is, a client and a server simultaneously adopt different physical paths to establish a data connection relationship, so as to obtain a larger bandwidth and higher reliability. In practical applications, a commonly used Multi-Path connection technology includes a Multi-Path TCP Protocol (MPTCP) technology. For example, the mobile terminal simultaneously accesses the mobile communication network and the wireless local area network (or simultaneously accesses two different mobile communication networks) using the MPTCP technology, thereby connecting to the server through two different physical paths.
Considering the characteristic that the multi-path connection technology can provide more network resources for the terminal, when the current access network cannot provide enough network resources for the terminal, the terminal is simultaneously accessed to other networks through the multi-path connection technology, and the other networks and the current access network jointly provide the network resources for the terminal, so that the service requirement of the terminal is met.
In view of this, the present application provides a session connection method and a network function entity, where, when a first network resource provided by a first network cannot meet a service requirement of a terminal, the first network function entity enables the terminal to obtain a second network resource from a second network, and establishes a multi-connection session based on the first network resource and the second network resource, and the multi-connection session carries the service requirement of the terminal, thereby ensuring normal use of a service.
The application provides a session connection method in a first aspect. Fig. 1 is a flowchart of a session connection method, which is applicable to a first network function entity, according to an embodiment of the present application. As shown in fig. 1, the session connection method includes the following steps.
Step S101, under the condition that the first network resource can not meet the service requirement of the terminal, a resource acquisition request is sent to a second network function entity.
The first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, the second network functional entity is a functional entity located in a second network, and the second network is a network which can provide network resources for the terminal except the first network.
In some embodiments, if the first network resource cannot meet the service requirement of the terminal after the terminal currently accesses the first network, the first network functional entity may send a resource acquisition request to the second network functional entity, so that the terminal acquires the network resource from the second network on the basis of the first network resource. Among them, the service demand of the terminal is for services (for example, a live video service that performs compression coding at a fixed coding rate) having high requirements on bandwidth, time delay, and the like.
Step S102, receiving the access indication information returned by the second network function entity.
The access indication information is information returned by the second network under the condition that the second network resource can be provided for the terminal, and the second network resource is the network resource in the second network determined according to the resource acquisition request. The terminal can acquire the second network resource from the second network through the access indication information.
In some embodiments, the access indication information includes authentication information (e.g., an access key) corresponding to the terminal accessing the second network, and/or access point information of the second network. Access point information includes, but is not limited to: public Land Mobile Network identification (PLMN ID), hotspot identification of wireless networks (WiFi).
Step S103, sending the access indication information to the terminal so that the terminal can initiate an access request to the second network based on the access indication information.
In some embodiments, the first network function entity sends the access indication information to the terminal. And after receiving the access indication information, the terminal generates an access request according to the access indication information and sends the access request to the second network so as to access the second network.
And step S104, establishing a multi-connection session according to the first network resource and the second network resource.
The multi-connection session is used for bearing service requirements of the terminal, and the second network resource is a network resource allocated to the terminal by the second network under the condition that the second network receives an access request sent by the terminal.
In some embodiments, the first network function entity establishes a first connection session in the first network according to the first network resources, the first connection session being a multiple connection session (e.g., an MPTCP session). The first network function entity sends the session identification of the first connection session to the second network function entity. And the second network functional entity accesses the second connection session into the first connection session according to the session identifier of the first connection session. And the second connection session is a session established in the second network by the second network functional entity according to the second network resource.
It should be noted that, if the peer device of the terminal does not support the multi-connection session, the first network may provide an MPTCP proxy server for the terminal so as to relay the session from the terminal to the peer device. Moreover, for an MPTCP session connection, the session connection is established at the transport layer, so the terminal and the peer device do not care about Internet Protocol (IP) layer routing of each session link, and accordingly, it is not necessary to care about which network provides a transport service for each session link.
In this embodiment, when the first network resource cannot meet the service requirement of the terminal, a resource acquisition request is sent to the second network functional entity, access indication information returned by the second network functional entity is received, and the access indication information is sent to the terminal; the terminal initiates an access request to a second network based on the access indication information, and the second network responds to the access request to allocate second network resources for the terminal; the first network establishes a multi-connection session based on the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
It should be noted that the first network functional entity may be a certain functional entity in the first network (e.g., a certain Application Function (AF), a Unified Data Management functional entity (UDM), a Unified Data storage functional entity (UDR), etc.), or may be a certain network device (e.g., a server) in a network Management system, a support system, or a service Management system.
It should be further noted that, when the session identifier of the first connection session conflicts with the existing session identifier in the second network, the first network and the second network may negotiate a new session identifier, so as to establish the multi-connection session through the first network resource and the second network resource according to the new session identifier.
Fig. 2 is a flowchart of a session connection method, which is applicable to a first network function entity, according to yet another embodiment of the present application. As shown in fig. 2, the session connection method includes the following steps.
Step S201, receiving a service requirement sent by a terminal.
The service requirement refers to a requirement of a terminal on a service to be used, and includes, but is not limited to, requirements on parameters such as bandwidth and time delay.
For example, a terminal uses a live video service, and has a certain requirement on bandwidth, and the terminal generates a service requirement according to the bandwidth requirement and sends the service requirement to an access network (specifically, a certain functional entity of the access network). If the access network cannot meet the bandwidth requirement of the terminal, the data link establishment of the service is easy to fail, so that the video live broadcast service cannot be used, or even if the video live broadcast service can be used, the service quality is low.
Step S202, under the condition that the first network resource can not meet the service requirement of the terminal, determining a second network.
The first network resource includes a network resource of the first network access network and a network resource of the first network core network. Correspondingly, the first network resource cannot meet the service requirement of the terminal, specifically, the network resource of the first network access network cannot meet the service requirement of the terminal, and/or the network resource of the first network core network cannot meet the service requirement of the terminal.
When determining whether the first network resource can meet the service requirement of the terminal, the requirements of the service requirement on network parameters such as Maximum Data Burst Volume (MDBV), Packet Delay Budget (PDB), Packet Error Rate (PER), and/or the like need to be considered comprehensively.
In some embodiments, signal overlay network information of the terminal and/or a network connection record of the terminal is obtained; and determining a second network according to a preset strategy of the first network, the signal coverage network information of the terminal and/or the network connection record of the terminal, wherein the preset strategy is a preset strategy for selecting the second network.
For example, the first network function entity prestores information of other networks with signals covering the current position of the terminal, and selects the second network from the networks.
As another example, the first network function entity sends an inquiry request to the terminal to inquire a network that the signal covers the terminal or other networks that the terminal currently accesses except the first network. And the first network functional entity selects the second network from the query feedback information returned by the terminal.
The preset strategy comprises a preset protocol, network evaluation information, a network type, a connection mode and the like. For example, the second network is selected from the other networks according to whether the first network has previously entered into an agreement with the other networks or contents of the agreement. For another example, the first network performs post-evaluation on the previously selected second network (for example, performs post-evaluation on the access success rate), obtains network evaluation information, and selects the second network from other networks according to the network evaluation information. For another example, if the types of the other networks include a 4G network and a WIFI network based on the hotspot, the 4G network is selected as the second network from the 4G network and the WIFI network according to the network type (for example, the WIFI network may also be selected). It should be noted that each content in the preset policy may be used alone or in combination, and the present application does not limit this.
Step S203, obtain the user identifier of the second network.
And the user identifier of the second network is the user identifier of the terminal in the second network.
In some embodiments, in the case that the terminal has a subscription service to the second network, the user identifier of the second network is determined according to account information corresponding to the subscription service, where the account information corresponding to the subscription service is information acquired from the terminal. And under the condition that the terminal does not have the subscription service to the second network, generating a temporary identifier for the terminal, and using the temporary identifier as the user identification of the second network.
And step S204, calculating the resource difference according to the service requirement of the terminal and the first network resource.
The service requirement of the terminal gives a requirement to the network resource required by the terminal, the first network resource is the resource provided by the first network for the terminal, and the difference between the two is the resource difference. The resource balance is the minimum amount of the second network resource that the terminal needs to acquire from the second network.
Step S205, a resource obtaining request is generated according to the user identifier of the second network and the resource difference.
Step S206, sending the resource obtaining request to the second network function entity.
The resource obtaining request at least comprises a user identification of the second network and a resource difference, after the second network functional entity receives the resource obtaining request, the terminal which needs to provide the network resource can be determined according to the user identification of the second network, and the quantity of the network resource which needs to be provided can be determined according to the resource difference.
Step S207, receiving the access indication information returned by the second network function entity.
Step S208, the access indication information is sent to the terminal, so that the terminal initiates an access request to the second network based on the access indication information.
Step S209 is to establish a multi-connection session according to the first network resource and the second network resource.
Steps S207 to S209 in this embodiment are the same as steps S102 to S104 in the previous embodiment of the present application, and are not described herein again.
It should be noted that, in the case that the second network is a network to which the terminal has been connected, the access indication information is used to enable the terminal to obtain network resources from the second network except for the current connection, that is, the second network resources are network resources additionally allocated by the second network on the basis of the network resources already allocated to the terminal.
It should be noted that, if a certain second network cannot provide the second network resource and feeds back "cannot provide the matched network resource" to the first network functional entity, the first network functional entity may reselect the second network and repeat steps S203 to S209. The first network function entity may also directly reject the service requirement of the terminal, or negotiate with the terminal to determine the network resources that the first network may allocate to the terminal.
In the embodiment, a service requirement sent by a terminal is received; determining a second network under the condition that the first network resource cannot meet the service requirement of the terminal; acquiring a user identifier of a second network; calculating a resource difference according to the service requirement of the terminal and the first network resource; generating a resource acquisition request according to the user identification and the resource difference of the second network; sending the resource acquisition request to a second network function entity; receiving access indication information returned by the second network functional entity; sending the access indication information to the terminal so that the terminal initiates an access request to the second network based on the access indication information; a multi-connection session is established based on the first network resource and the second network resource. Based on the method, the terminal can select a proper second network and acquire the second network resource from the second network, so that a multi-connection session is established based on the first network resource and the second network resource, the multi-connection session bears the service requirement of the terminal, and the normal use of the service is ensured.
Fig. 3 is a flowchart of a session connection method, which is applicable to a second network function entity, according to yet another embodiment of the present application. As shown in fig. 3, the session connection method includes the following steps.
Step S301, receiving a resource obtaining request sent by a first network function entity.
The resource obtaining request is a request sent under the condition that a first network resource cannot meet the service requirement of the terminal, the first network resource is a network resource in a first network, the first network is a network for providing the network resource for the terminal, and the first network functional entity is a functional entity located in the first network.
In some embodiments, if the first network resource cannot meet the service requirement of the terminal after the terminal currently accesses the first network, the first network functional entity may send a resource acquisition request to the second network functional entity, so that the terminal acquires the network resource from the second network on the basis of the first network resource. Among them, the service demand of the terminal is for services having higher requirements on bandwidth, time delay and the like.
Step S302, under the condition that the terminal can be provided with the second network resource, generating and sending the access indication information to the first network function entity.
The second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network which can provide network resources for the terminal except the first network.
In some embodiments, the access indication information includes authentication information (e.g., an access key) corresponding to the terminal accessing the second network, and/or access point information of the second network. Access point information includes, but is not limited to: PLMN ID, WiFi hotspot identification.
Step S303, responding to the access request sent by the terminal, accessing the terminal.
The access request is a request generated by the terminal according to the access indication information.
In some embodiments, after receiving the access indication information sent by the second network function entity, the first network function entity forwards the access indication information to the terminal. After receiving the access indication information, the terminal generates an access request according to the access indication information, and sends the access request to a second network (specifically, a second network function entity) to request to access the second network. And the second network functional entity receives the access request and accesses the terminal into the second network after confirming that the information of the access request is correct.
Step S304, second network resources are allocated to the terminal, so that the first network functional entity can establish a multi-connection session according to the first network resources and the second network resources.
Wherein, the multi-connection session is used for bearing the service requirement of the terminal.
In some embodiments, the first network function entity establishes a first connection session in the first network according to the first network resources, the first connection session being a multiple connection session. The first network function entity sends the session identification of the first connection session to the second network function entity. And the second network functional entity accesses the second connection session into the first connection session according to the session identifier of the first connection session. And the second connection session is a session established in the second network by the second network functional entity according to the second network resource.
In this embodiment, a resource acquisition request sent by a first network function entity is received; under the condition that the terminal can be provided with the second network resource, generating and sending access indication information to the first network functional entity; responding to an access request sent by a terminal, and accessing the terminal; and allocating a second network resource to the terminal so that the first network functional entity can establish the multi-connection session according to the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
It should be noted that the second network functional entity may be a certain functional entity in the second network (e.g., a certain AF, UDM, or UDR), or may be a certain network device (e.g., a Home Subscriber Server (HSS)) in a network management system, a support system, or a service management system.
Fig. 4 is a flowchart of a session connection method, which is applicable to a second network function entity, according to another embodiment of the present application. As shown in fig. 4, the session connection method includes the following steps.
Step S401, receives a resource obtaining request sent by a first network function entity.
In some embodiments, a first network function entity receives a service requirement sent by a terminal; determining a second network under the condition that the first network resource cannot meet the service requirement of the terminal; acquiring a user identifier of a second network, wherein the user identifier of the second network is the user identifier of the terminal in the second network; and calculating the resource difference according to the service requirement of the terminal and the first network resource. The first network functional entity generates a resource acquisition request according to the user identification and the resource difference of the second network, and sends the resource acquisition request to the second network functional entity.
Step S402, determining the resource difference according to the resource acquisition request.
Wherein the resource difference is a difference determined according to the service requirement of the terminal and the first network resource.
Specifically, a requirement is given to a network resource required by the terminal in a service requirement of the terminal, the first network resource is a resource provided by the first network for the terminal, and a difference between the two is a resource difference. The resource balance is the minimum amount of the second network resource that the terminal needs to acquire from the second network.
Step S403, obtain information of the third network resource.
And the third network resource is a network resource of which the second network opens the use permission for the terminal. In other words, the third network resource is the set of all network resources that the terminal may use in the second network.
Step S404, obtaining the resource providing result according to the resource difference and the information of the third network resource.
And the resource providing result is used for representing whether the second network can provide the second network resource for the terminal.
In some embodiments, if the resource difference is less than or equal to the third network resource, it indicates that the amount of the third network resource is greater than or equal to the resource difference, and therefore, the resource providing result is that the second network can provide the second network resource for the terminal. If the resource difference is larger than the third network resource, the number of the third network resource is smaller than the resource difference, so that the resource providing result is that the second network cannot provide the second network resource for the terminal.
Step S405, in case it is determined that the second network resource can be provided for the terminal, generating and sending the access indication information to the first network function entity.
Step S406, responding to the access request sent by the terminal, accessing the terminal.
Step S407, allocating a second network resource to the terminal, so that the first network functional entity establishes a multi-connection session according to the first network resource and the second network resource.
Steps S405 to S407 in this embodiment are the same as steps S302 to S304 in the previous embodiment of the present application, and are not described herein again.
In this embodiment, a resource acquisition request sent by a first network function entity is received; determining a resource balance according to the resource acquisition request; acquiring information of a third network resource; obtaining a resource providing result according to the resource difference and the information of the third network resource; under the condition that the terminal can be provided with the second network resource, generating and sending access indication information to the first network functional entity; responding to an access request sent by a terminal, and accessing the terminal; and allocating a second network resource to the terminal so that the first network functional entity can establish the multi-connection session according to the first network resource and the second network resource. Based on the method, the terminal can select a proper second network and acquire the second network resource from the second network, so that the multi-connection session is established based on the first network resource and the second network resource, the multi-connection session bears the service requirement of the terminal, and the normal use of the service is ensured.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps into multiple steps, which are all within the protection scope of the present application as long as the same logical relationship is included; it is within the scope of the present application to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A second aspect of the present application provides a network function entity. Fig. 5 is a block diagram illustrating a network function entity according to an embodiment of the present application, where the network function entity may be disposed in a first network. As shown in fig. 5, the network function entity 500 includes:
the first sending module 501 is configured to send a resource obtaining request to the second network functional entity when the first network resource cannot meet the service requirement of the terminal.
The first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, the second network functional entity is a functional entity located in a second network, and the second network is a network which can provide network resources for the terminal except the first network.
A first receiving module 502 configured to receive the access indication information returned by the second network function entity.
The access indication information is information returned by the second network under the condition that the second network resource can be provided for the terminal, and the second network resource is the network resource in the second network determined according to the resource acquisition request.
A second sending module 503, configured to send the access indication information to the terminal, so that the terminal initiates an access request to the second network based on the access indication information.
A session module 504 configured to establish a multi-connection session based on the first network resource and the second network resource.
The multi-connection session is used for bearing service requirements of the terminal, and the second network resource is a network resource allocated to the terminal by the second network under the condition that the second network receives an access request sent by the terminal.
In this embodiment, the first sending module sends a resource obtaining request to the second network functional entity when the first network resource cannot meet a service requirement of the terminal, the first receiving module receives access indication information returned by the second network functional entity, and sends the access indication information to the terminal through the second sending module, so that the terminal initiates an access request to the second network based on the access indication information, and the session module establishes a multi-connection session according to the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
Fig. 6 is a block diagram of a network function entity according to another embodiment of the present application, where the network function entity may be disposed in a second network. As shown in fig. 6, the network function entity 600 includes:
the second receiving module 601 is configured to receive a resource obtaining request sent by the first network function entity.
The resource obtaining request is a request sent under the condition that a first network resource cannot meet the service requirement of the terminal, the first network resource is a network resource in a first network, the first network is a network for providing the network resource for the terminal, and the first network functional entity is a functional entity located in the first network.
A generating module 602 configured to generate the access indication information in case it is determined that the second network resource can be provided for the terminal.
The second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network which can provide network resources for the terminal except the first network.
A third sending module 603 configured to send the access indication information to the first network function entity.
An access module 604 configured to access the terminal in response to an access request sent by the terminal.
The access request is a request generated by the terminal according to the access indication information.
An allocating module 605 configured to allocate a second network resource to the terminal for the first network functional entity to establish the multi-connection session according to the first network resource and the second network resource.
In this embodiment, a second receiving module receives a resource obtaining request sent by a first network function entity; generating, by a generation module, access indication information in a case where it is determined that a second network resource can be provided for the terminal; the third sending module sends the access indication information to the first network functional entity; the access module responds to an access request sent by the terminal and accesses the terminal; and finally, allocating a second network resource for the terminal through the allocation module so that the first network functional entity can establish the multi-connection session according to the first network resource and the second network resource. Based on the method, the terminal can respectively obtain the first network resource from the first network and the second network resource from the second network, so as to obtain the network resource meeting the service requirement of the terminal, and establish the multi-connection session based on the first network resource and the second network resource, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
A third aspect of the present application provides a session connection system. Fig. 7 is a schematic composition diagram of a session connection system according to an embodiment of the present application.
As shown in fig. 7, the session connection system 700 includes: a first network 710, a first network function 711, a terminal 720, a second network 730, and a second network function 731, wherein the first network function 711 is a function located in the first network 710, and the second network function 731 is a function located in the second network 730.
In some embodiments, the terminal 720 first accesses the first network 710, the first network 710 allocates the first network resource to the terminal 720, and when the first network resource cannot meet the service requirement of the terminal 720, the first network 710 requests the second network 730 for the network resource through the first network function entity 711. The second network function 731 receives the resource acquisition request and returns access indication information to the first network function 711 when the second network 730 grants the resource acquisition request of the first network 710. The first network function 711 forwards the access indication information to the terminal 720. The terminal 720 initiates an access request to the second network 730 according to the access indication information, and the second network 730 allocates a second network resource to the terminal 720 after the terminal 720 accesses. The terminal 720 utilizes the first network resource and the second network resource together to satisfy its traffic demand.
Fig. 8 is a schematic signaling interaction diagram of a session connection system according to an embodiment of the present application. As shown in fig. 8, the signaling interaction procedure of the session connection system includes:
step S801, the terminal sends a GBR service request to the first network function entity.
Step S802, the first network functional entity receives the GBR, and recognizes that the first network resource cannot satisfy the GBR service request.
Step S803, the first network function entity determines a second network that can provide network resources for the terminal, and obtains a user identifier of the terminal in the second network.
The term "second network providing network resources for the terminal" specifically means that, on the basis that the first network provides the first network resources for the terminal, the second network also provides the network resources (i.e. the second network resources) in the second network for the terminal, so that the terminal obtains sufficient network resources from the network side (including the first network and the second network).
Step S804, the first network functional entity calculates the resource difference according to the GBR service request and the first network resource, and generates and sends a resource acquisition request to the second network functional entity according to the user identifier of the second network and the resource difference.
Step S805, the second network function entity receives the resource obtaining request and obtains the location information of the terminal.
Step S806, the second network functional entity determines whether the terminal can be served according to the location information of the terminal.
In step S807, in case that it is determined that the terminal can be provided with a service, the second network function entity generates and transmits access indication information to the first network function entity.
Step S808, the first network function entity forwards the access indication information to the terminal.
And step S809, the terminal generates an access request according to the access indication information and sends the access request to the second network function entity.
Step S810, the second network functional entity responds to the access request, accesses the terminal, and allocates a second network resource to the terminal.
Based on the method, the terminal acquires the first network resource from the first network, acquires the second network resource from the second network, and uses the first network resource and the second network resource to jointly bear the GBR service, thereby ensuring the GBR service experience of the user.
FIG. 9 illustrates a schematic block diagram of an example electronic device 900 that can be used to implement embodiments of the present application. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.
As shown in fig. 9, the apparatus 900 includes a computing unit 901, which can perform various appropriate actions and processes in accordance with a computer program stored in a Read Only Memory (ROM)902 or a computer program loaded from a storage unit 908 into a Random Access Memory (RAM) 903. In the RAM903, various programs and data required for the operation of the device 900 can also be stored. The calculation unit 901, ROM902, and RAM903 are connected to each other via a bus 904. An input/output (I/O) interface 905 is also connected to bus 904.
A number of components in the device 900 are connected to the I/O interface 905, including: an input unit 906 such as a keyboard, a mouse, and the like; an output unit 907 such as various types of displays, speakers, and the like; a storage unit 908 such as a magnetic disk, optical disk, or the like; and a communication unit 909 such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 909 allows the device 900 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.
The computing unit 901 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of the computing unit 901 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The computing unit 901 performs the respective methods and processes described above, such as the session connection method. For example, in some embodiments, the session connection method may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as storage unit 908. In some embodiments, part or all of the computer program may be loaded and/or installed onto device 900 via ROM902 and/or communications unit 909. When the computer program is loaded into the RAM903 and executed by the computing unit 901, one or more steps of the session connection method described above may be performed. Alternatively, in other embodiments, the computing unit 901 may be configured to perform the session connection method by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for implementing the methods of the present application may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, a unit that is not so closely related to solving the technical problem proposed by the present application is not introduced in the present embodiment, but it does not indicate that no other unit exists in the present embodiment.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present application, and that the present application is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the application, and these changes and modifications are to be considered as the scope of the application.
Claims (12)
1. A session connection method, comprising:
sending a resource acquisition request to a second network functional entity under the condition that a first network resource cannot meet the service requirement of a terminal, wherein the first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, the second network functional entity is a functional entity in a second network, and the second network is a network which can provide network resources for the terminal except the first network;
receiving access indication information returned by the second network functional entity, wherein the access indication information is returned by the second network when determining that a second network resource can be provided for the terminal, and the second network resource is a network resource in the second network determined according to the resource acquisition request;
sending the access indication information to the terminal so that the terminal initiates an access request to the second network based on the access indication information;
and establishing a multi-connection session according to the first network resource and a second network resource, wherein the multi-connection session is used for bearing the service requirement of the terminal, and the second network resource is a network resource allocated to the terminal by the second network under the condition that the second network receives an access request sent by the terminal.
2. The session connection method according to claim 1, wherein the sending a resource obtaining request to a second network function entity in case that the first network resource cannot meet the service requirement of the terminal includes:
receiving a service requirement sent by the terminal;
determining the second network under the condition that the first network resource cannot meet the service requirement of the terminal;
acquiring a user identifier of the second network, wherein the user identifier of the second network is the user identifier of the terminal in the second network;
calculating a resource difference according to the service requirement of the terminal and the first network resource;
generating the resource acquisition request according to the user identification of the second network and the resource difference;
and sending the resource acquisition request to the second network function entity.
3. The session connection method according to claim 2, wherein the determining the second network in the case that the first network resource cannot meet the service requirement of the terminal comprises:
acquiring signal coverage network information of the terminal and/or network connection records of the terminal;
and determining the second network according to a preset strategy of the first network, the signal coverage network information of the terminal and/or the network connection record of the terminal, wherein the preset strategy is a preset strategy for selecting the second network.
4. The session connection method according to claim 2, wherein the obtaining the user identifier of the second network comprises:
under the condition that the terminal has an order service to the second network, determining a user identifier of the second network according to account information corresponding to the order service, wherein the account information corresponding to the order service is information acquired from the terminal;
and under the condition that the terminal does not have the subscribed service to the second network, generating a temporary identifier for the terminal, and using the temporary identifier as a user identifier of the second network.
5. The session connection method according to claim 1, wherein the establishing a multi-connection session according to the first network resource and the second network resource comprises:
establishing a first connection session according to the first network resource;
and sending the session identifier of the first connection session to the second network function entity, so that the second network function entity adds a second connection session to the first connection session according to the session identifier of the first connection session to obtain the multi-connection session, wherein the second connection session is a session established by the second network function entity in the second network according to the second network resource.
6. A session connection method, comprising:
receiving a resource acquisition request sent by a first network functional entity, wherein the resource acquisition request is sent under the condition that a first network resource cannot meet the service requirement of a terminal, the first network resource is a network resource in a first network, the first network is a network for providing network resources for the terminal, and the first network functional entity is a functional entity located in the first network;
under the condition that a second network resource is determined to be provided for the terminal, generating and sending access indication information to the first network function entity, wherein the second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network which can provide network resources for the terminal except the first network;
responding to an access request sent by the terminal, and accessing the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
and allocating a second network resource to the terminal so that the first network functional entity can establish a multi-connection session according to the first network resource and the second network resource.
7. The session connection method according to claim 6, wherein after receiving the resource acquisition request sent by the first network function entity, before generating and sending the access indication information to the first network function entity in the case that it is determined that the second network resource is provided for the terminal, the method further comprises:
determining a resource difference according to the resource acquisition request, wherein the resource difference is determined according to the service requirement of the terminal and the first network resource;
acquiring information of a third network resource, wherein the third network resource is a network resource for opening a use permission of the terminal by the second network;
and obtaining a resource providing result according to the resource difference and the information of the third network resource, wherein the resource providing result is used for representing whether the second network can provide the second network resource for the terminal.
8. The session connection method according to claim 6 or 7, wherein the allocating a second network resource to the terminal for the first network function entity to establish a multi-connection session according to the first network resource and the second network resource comprises:
establishing a second connection session according to the second network resource;
receiving a session identifier of a first connection session sent by the first network function entity, wherein the first connection session is a session established by the first network function entity according to the first network resource;
and adding the second connection session into the first connection session according to the session identifier of the first connection session to obtain the multi-connection session.
9. A network function entity, comprising:
a first sending module, configured to send a resource obtaining request to a second network function entity when a first network resource cannot meet a service requirement of a terminal, where the first network resource is a network resource in a first network, the first network is a network that provides network resources for the terminal, the second network function entity is a function entity located in a second network, and the second network is a network that can provide network resources for the terminal except the first network;
a first receiving module, configured to receive access indication information returned by the second network functional entity, where the access indication information is information returned by the second network in a case where it is determined that a second network resource can be provided for the terminal, and the second network resource is a network resource in the second network determined according to the resource acquisition request;
a second sending module configured to send the access indication information to the terminal, so that the terminal initiates an access request to the second network based on the access indication information;
a session module configured to establish a multi-connection session according to the first network resource and a second network resource, where the multi-connection session is used to carry a service requirement of the terminal, and the second network resource is a network resource allocated to the terminal by the second network when receiving an access request sent by the terminal.
10. A network function entity, comprising:
a second receiving module, configured to receive a resource acquisition request sent by a first network functional entity, where the resource acquisition request is a request sent when a first network resource cannot meet a service requirement of a terminal, the first network resource is a network resource in a first network, the first network is a network that provides network resources for the terminal, and the first network functional entity is a functional entity located in the first network;
a generating module configured to generate access indication information in a case that it is determined that a second network resource can be provided for the terminal, where the second network resource is a network resource in a second network determined according to the resource acquisition request, and the second network is a network that can provide network resources for the terminal except the first network;
a third sending module configured to send the access indication information to the first network function entity;
the access module is configured to respond to an access request sent by the terminal and access to the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
an allocation module configured to allocate a second network resource to the terminal, so that the first network function entity establishes a multi-connection session according to the first network resource and the second network resource.
11. An electronic device, comprising:
one or more processors;
memory having one or more programs stored thereon that, when executed by the one or more processors, cause the one or more processors to implement the session connection method of any of claims 1-5 or 6-8.
12. A readable storage medium, characterized in that the readable storage medium stores a computer program which, when executed by a processor, implements the session connection method according to any one of claims 1-5 or 6-8.
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