CN114302505B - Session connection method and network function entity equipment - Google Patents

Session connection method and network function entity equipment Download PDF

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CN114302505B
CN114302505B CN202111651258.4A CN202111651258A CN114302505B CN 114302505 B CN114302505 B CN 114302505B CN 202111651258 A CN202111651258 A CN 202111651258A CN 114302505 B CN114302505 B CN 114302505B
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network
resource
terminal
session
network resource
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CN114302505A (en
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张伦泳
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Abstract

The application discloses a session connection method and a network function entity, belonging 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, sending a resource acquisition request to a second network functional entity; receiving access indication information returned by a second network function entity; transmitting 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 acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee the normal use of the service.

Description

Session connection method and network function entity equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to a session connection method and a network functional entity.
Background
In the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) network, a communication carrier supports users using guaranteed bit rate (Guaranteed Bit Rate, GBR) services, i.e. when a User Equipment (UE) establishes a data connection, it can request to provide a fixed data transmission bit rate to an accessed network so that the UE can use a desired service (e.g. a service requiring a high 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 GBR service requirement, so that the user cannot use the expected service.
Disclosure of Invention
Therefore, the application provides a session connection method and a network function entity, so as to solve the problem that an access network cannot provide enough network resources for a terminal, and a user cannot use expected service.
In order to achieve the above object, a first aspect of the present application provides a session connection method, including:
under the condition that a first network resource cannot meet the service requirement of a terminal, sending a resource acquisition request to a second network functional entity, wherein 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, the second network functional entity is a functional entity positioned in a second network, and the second network is a network which can provide the network resource for the terminal besides the first network;
receiving access indication information returned by the second network functional entity, wherein the access indication information is information returned by the second network under the condition that the second network can provide second network resources for the terminal, and the second network resources are network resources in the second network determined according to the resource acquisition request;
Transmitting 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, wherein the multi-connection session is used for bearing the service requirement of the terminal, and the second network resource is the network resource allocated to the terminal by the second network under the condition of receiving the access request sent by the terminal.
Further, the sending a resource acquisition request to the 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 a user identifier of the terminal in the second network;
calculating a resource balance 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 balance;
And sending the resource acquisition request to the second network functional entity.
Further, the determining the second network in the case that 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, signal coverage network information of the terminal and/or network connection records of the terminal, wherein the preset strategy is a preset strategy used for selecting the second network.
Further, the obtaining the user identifier of the second network includes:
determining a user identifier of the second network according to account information corresponding to the subscription service when the terminal has the subscription service to the second network, wherein the account information corresponding to the subscription service is information acquired from the terminal;
and generating a temporary identifier for the terminal under the condition that the terminal does not have a subscription service for the second network, and taking the temporary identifier as a user identification 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 into 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 established in the second network by the second network function entity 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 a request 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 the network resource for the terminal, and the first network functional entity is a functional entity positioned in the first network;
Generating and transmitting access indication information to the first network function entity under the condition that a second network resource is determined to be provided for the terminal, 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 in addition to 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 distributing second network resources for 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.
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 under the condition that the second network resource is determined to be provided for the terminal, the method further includes:
determining a resource deficit according to the resource acquisition request, wherein the resource deficit is a deficit 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 of which the second network opens a use right for the terminal;
and obtaining a resource providing result according to the resource balance 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, so that the first network function entity establishes 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 identification of the first connection session, so as to obtain the multi-connection session.
In order to achieve the above object, a third aspect of the present application provides a network functional entity, including:
A first sending module configured to send a resource acquisition request to a second network functional entity in case that 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 the terminal with the network resource, and the second network functional entity is a functional entity located in a second network, and the second network is a network that can provide the terminal with the network resource in addition to the first network;
the first receiving module is configured to receive access indication information returned by the second network functional entity, wherein the access indication information is information returned by the second network under the condition that the second network can provide a second network resource 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;
and the session module is configured to establish 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 of 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 functional 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 providing the network resource for the terminal, and the first network functional entity is a functional entity located in the first network;
a generation module configured to generate access indication information in a case where it is determined that a second network resource can be provided for the terminal, 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 that can provide network resources for the terminal in addition to 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 the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
And the allocation module is configured to allocate a second network resource for the terminal so that the first network function entity can establish 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 device, including:
one or more processors;
and a memory, on which one or more programs are stored, which when executed by the one or more processors, cause the one or more processors to implement any one of the session connection methods in 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.
The application has the following advantages:
according to the session connection method and the network function entity, under the condition that the first network resource can not 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 acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee the normal use of the service.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and, together with the description, do not 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 flow chart 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 flow chart of a session connection method according to another embodiment of the present application;
FIG. 5 is a block diagram of a network entity according to an embodiment of the present application;
fig. 6 is a block diagram of a network functional entity according to another embodiment of the present application;
fig. 7 is a block diagram of a session connection system according to an embodiment of the present application;
fig. 8 is a signaling interaction schematic 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 of an embodiment of the present application.
Detailed Description
The following detailed description of specific embodiments of the present application refers to the accompanying drawings. It should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application.
Currently, many Applications (APP) support multiple connection modes, that is, a client and a server use different physical paths to establish a data connection relationship at the same time, so as to obtain a larger bandwidth and higher reliability. In practice, common multiplexing techniques include the multipath transmission control protocol (Multi-Path TCP Protocol, MPTCP) technique. For example, a mobile terminal uses MPTCP technology to simultaneously access a mobile communication network and a wireless local area network (or to simultaneously access two different mobile communication networks) to connect to a server through two different physical paths.
In consideration of 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 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, in a case that a first network resource provided by a first network cannot meet a service requirement of a terminal, the first network function entity makes the terminal acquire 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, so as to ensure normal use of a service.
The first aspect of the application provides a session connection method. Fig. 1 is a flowchart of a session connection method according to an embodiment of the present application, where the session connection method is applicable to a first network function entity. As shown in fig. 1, the session connection method includes the following steps.
Step S101, in the case that the first network resource cannot meet the service requirement of the terminal, sending a resource acquisition request to the second network functional 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 in a second network, and the second network is a network which can provide network resources for the terminal besides the first network.
In some embodiments, if the first network resource cannot meet the service requirement of the terminal after the terminal is currently accessed to the first network, the first network function entity may send a resource acquisition request to the second network function entity, so that the terminal acquires the network resource from the second network on the basis of the first network resource. The service requirement of the terminal corresponds to a service with higher requirements on bandwidth, time delay and the like (for example, a live video service adopting a fixed coding rate for compression coding).
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 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 identity (Public Land Mobile Network ID, PLMN ID), hotspot identification of wireless networks (WiFi).
Step S103, 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.
In some embodiments, the first network function entity sends 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 the second network to access the second network.
Step S104, a multi-connection session is established according to the first network resource and the second network resource.
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 the access request sent by the terminal.
In some embodiments, the first network function establishes a first connection session in the first network according to the first network resource, the first connection session being a multi-connection session (e.g., MPTCP session). The first network function entity sends a session identification of the first connection session to the second network function entity. The second network function entity accesses the second connection session into the first connection session according to the session identification of the first connection session. 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 opposite device of the terminal does not support the multi-connection session, the first network may provide the terminal with an MPTCP proxy server so as to relay the session from the terminal to the opposite device. Moreover, for an MPTCP session connection, the session connection is established at the transport layer, so that the terminal and the peer device are not concerned about the internet protocol (Internet Protocol, IP) layer routing of each session link, and accordingly, about which network each session link is served by, respectively.
In this embodiment, 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 acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee 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 (for example, a certain application functional entity (Application Function, AF), a unified data management functional entity (Unified Data Management, UDM), or a unified data storage functional entity (Unified Data Repository, UDR), etc.), or may be a certain network device (for example, 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 an existing session identifier in the second network, the first network and the second network may negotiate a new session identifier, so as to establish a 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 according to another embodiment of the present application, where the session connection method is applicable to a first network function entity. 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 the requirement of the terminal on the service to be used, including but not limited to the requirement on parameters such as bandwidth, time delay and the like.
For example, the terminal uses a live video service, and there is a certain requirement on bandwidth, and the terminal generates a service requirement according to the bandwidth requirement and sends the service requirement to the access network (specifically, a certain functional entity of the access network). If the access network cannot meet the bandwidth requirement of the terminal, the service data link is easy to fail to be established, 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 lower.
Step S202, determining a second network under the condition that the first network resource can not meet the service requirement of the terminal.
Wherein the first network resource comprises both a network resource of the first network access network and a network resource of the first network core network. Accordingly, 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.
In determining whether the first network resource can meet the service requirement of the terminal, network parameters such as a maximum data burst capacity (Maximum Data Burst Volume, MDBV), and/or a packet delay budget (Packet Delay Budget, PDB), and/or a packet error rate (Packet Error Rate, PER) need to be comprehensively considered by the service requirement.
In some embodiments, signal coverage network information of the terminal and/or network connection records of the terminal are obtained; and determining the second network according to a preset strategy of the first network, signal coverage network information of the terminal and/or network connection records of the terminal, wherein the preset strategy is a preset strategy used for selecting the second network.
For example, the first network function entity pre-stores information of other networks where the signal covers the current position of the terminal, and selects the second network from the networks.
For another example, the first network function entity sends a query request to the terminal to query a network of which the signal covers the terminal or other networks than the first network that the terminal is currently accessing. The first network functional entity selects a second network from the query feedback information returned by the terminal.
The preset strategy comprises a preset protocol, network evaluation information, network type, connection mode and the like. For example, the second network is selected from the other networks according to whether the first network has a pre-made agreement with the other networks or the contents of the agreement. In another example, the first network performs post-evaluation (e.g., performs post-evaluation on access success rate) on the previously selected second network, obtains network evaluation information, and selects the second network from the other networks according to the network evaluation information. For another example, the types of other networks include a 4G network and a WIFI network based on a hotspot, and then 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, which is not limited in this application.
Step S203, obtain the user identifier of the second network.
The user identification of the second network is the user identification of the terminal in the second network.
In some embodiments, when the terminal has a subscription service to the second network, determining a user identifier of the second network 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 generating a temporary identifier for the terminal under the condition that the terminal does not have the subscription service for the second network, and taking the temporary identifier as the user identification of the second network.
Step S204, calculating the resource balance according to the service requirement of the terminal and the first network resource.
The service requirement of the terminal gives a requirement on network resources required by the terminal, wherein the first network resources are resources provided by the first network for the terminal, and the difference between the first network resources and the second network resources is the resource difference. The resource deficit is the minimum number of requirements of the second network resources that the terminal needs to acquire from the second network.
Step S205, a resource acquisition request is generated according to the user identification and the resource balance of the second network.
Step S206, the resource acquisition request is sent to the second network function entity.
The resource acquisition request at least comprises a user identifier of the second network and a resource balance, and after the second network functional entity receives the resource acquisition request, the terminal needing to provide network resources can be determined according to the user identifier of the second network, and the quantity of the network resources needing to be provided can be determined according to the resource balance.
Step S207, receiving the access instruction 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, a multi-connection session is established 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 here again.
It should be noted that, in the case where the second network is a network to which the terminal has been connected, the access instruction information is used to cause the terminal to acquire network resources other than the current connection from the second network, that is, the second network resources are network resources that the second network additionally allocates on the basis of the network resources that have already been allocated for the terminal.
It should be noted that, if a certain second network cannot provide the second network resource, when the "cannot provide the matching network resource" is fed back to the first network function entity, the first network function 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 network resources that the first network may allocate for the terminal.
In this 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 balance 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 balance of the second network; transmitting the resource acquisition request to a second network function entity; receiving access indication information returned by a second network function entity; transmitting 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 second network resources from the second network, so that a multi-connection session is established based on the first network resources and the second network resources, the service requirement of the terminal is borne by the multi-connection session, and normal use of the service is ensured.
Fig. 3 is a flowchart of a session connection method according to still another embodiment of the present application, where the session connection method is applicable to a second network function entity. As shown in fig. 3, the session connection method includes the following steps.
Step S301, a resource acquisition request sent by a first network function entity is received.
The resource acquisition request is a request sent under the condition that 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 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 is currently accessed to the first network, the first network function entity may send a resource acquisition request to the second network function entity, so that the terminal acquires the network resource from the second network on the basis of the first network resource. The service requirement of the terminal corresponds to the service with higher requirements on bandwidth, time delay and the like.
Step S302, in the case that it is determined that the second network resource can be provided for the terminal, generating and transmitting 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 in addition to 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, hotspot identification of WiFi.
Step S303, responding to the access request sent by the terminal, and accessing the terminal.
The access request is a request generated by the terminal according to the access indication information.
In some embodiments, the first network function entity forwards the access indication information to the terminal after receiving the access indication information sent by the second network function entity. 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 functional 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, a second network resource is allocated for 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.
Wherein the multi-connection session is used to carry the service requirements of the terminal.
In some embodiments, the first network function establishes a first connection session in the first network according to the first network resource, the first connection session being a multi-connection session. The first network function entity sends a session identification of the first connection session to the second network function entity. The second network function entity accesses the second connection session into the first connection session according to the session identification of the first connection session. 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; generating and transmitting access indication information to the first network function entity under the condition that the second network resource can be provided for the terminal is determined; responding to an access request sent by a terminal, and accessing the terminal; and allocating second network resources for 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. Based on the method, the terminal can acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee the normal use of the service.
The second network functional entity may be a certain functional entity in the second network (e.g., a certain AF, UDM, or UDR, etc.), or may be a certain network device in a network management system, a support system, or a service management system (e.g., home subscriber server (Home Subscriber Server, HSS)).
Fig. 4 is a flowchart of a session connection method according to another embodiment of the present application, where the session connection method is applicable to a second network function entity. As shown in fig. 4, the session connection method includes the following steps.
Step S401, a resource acquisition request sent by a first network function entity is received.
In some embodiments, the first network function entity receives a service requirement sent by the 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 a user identifier of a terminal in the second network; and calculating the resource balance 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 balance of the second network, and sends the resource acquisition request to the second network functional entity.
Step S402, determining a resource balance according to the resource acquisition request.
Wherein the resource deficit is a deficit determined according to the traffic demand of the terminal and the first network resource.
Specifically, in the service requirement of the terminal, a requirement is given to network resources required by the terminal, the first network resources are resources provided for the terminal by the first network, and the difference between the first network resources and the second network resources is the resource difference. The resource deficit is the minimum number of requirements of the second network resources that the terminal needs to acquire from the second network.
Step S403, obtaining information of the third network resource.
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 a set of all network resources that the terminal can use in the second network.
Step S404, obtaining a resource providing result according to the resource balance and the information of the third network resource.
Wherein the resource providing result is used to characterize whether the second network can provide the second network resource for the terminal.
In some embodiments, if the resource balance is less than or equal to the third network resource, the number of the third network resource is greater than or equal to the resource balance, so the resource providing result is that the second network can provide the second network resource for the terminal. If the resource difference is greater than the third network resource, it indicates that the number of the third network resources is less than the resource difference, and therefore, 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, generates and transmits access indication information to the first network function entity.
In step S406, the access terminal responds to the access request sent by the terminal.
Step S407, a second network resource is allocated for 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.
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 here again.
In this embodiment, a resource acquisition request sent by a first network function entity is received; determining a resource deficit 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; generating and transmitting access indication information to the first network function entity under the condition that the second network resource can be provided for the terminal is determined; responding to an access request sent by a terminal, and accessing the terminal; and allocating second network resources for 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. Based on the method, the terminal can select a proper second network and acquire second network resources from the second network, so that a multi-connection session is established based on the first network resources and the second network resources, and the multi-connection session bears the service requirement of the terminal, thereby ensuring the normal use of the service.
The above steps of the methods are divided, for clarity of description, and may be combined into one step or split into multiple steps when implemented, so long as they include the same logic relationship, and they are all within the protection scope of the present application; it is within the scope of this application to add insignificant modifications to the algorithm or flow or introduce insignificant designs, but not to alter the core design of its algorithm and flow.
A second aspect of the present application provides a network function entity. Fig. 5 is a block diagram of 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 in case 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 in a second network, and the second network is a network which can provide network resources for the terminal besides the first network.
The first receiving module 502 is 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 determined according to the resource acquisition request.
A second sending module 503 is 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 is configured to establish a multi-connection session from the first network resource and the second network resource.
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 the access request sent by the terminal.
In this embodiment, when the first network resource cannot meet the service requirement of the terminal, the first sending module sends a resource acquisition request to the second network functional entity, the first receiving module receives the 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 acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee the normal use of the service.
Fig. 6 is a block diagram of a network functional entity according to another embodiment of the present application, where the network functional 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 acquisition request sent by the first network functional entity.
The resource acquisition request is a request sent under the condition that 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 the network resource for the terminal, and the first network functional entity is a functional entity located in the first network.
The generating module 602 is configured to generate 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 in addition to the first network.
A third sending module 603 is 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.
The allocation module 605 is configured to allocate a second network resource for the terminal for the first network function entity to establish the multi-connection session according to the first network resource and the second network resource.
In this embodiment, a resource acquisition request sent by a first network functional entity is received through a second receiving module; generating, by the generating module, access indication information under a condition that it is determined that the 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 the terminal is accessed; and finally, distributing second network resources to the terminal through the distribution module so that the first network function entity can establish a multi-connection session according to the first network resources and the second network resources. Based on the method, the terminal can acquire the first network resource from the first network and acquire the second network resource from the second network respectively, so as to acquire the network resource meeting the service requirement of the terminal, establish a multi-connection session based on the first network resource and the second network resource, bear the service requirement of the terminal by the multi-connection session, and guarantee the normal use of the service.
A third aspect of the present application provides a session connection system. Fig. 7 is a schematic 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: the first network 710, the first network functional entity 711, the terminal 720, the second network 730, and the second network functional entity 731, wherein the first network functional entity 711 is a functional entity located in the first network 710, and the second network functional entity 731 is a functional entity located in the second network 730.
In some embodiments, the terminal 720 first accesses the first network 710, the first network 710 allocates first network resources to the terminal 720, and when the first network resources cannot meet the service requirements of the terminal 720, the first network 710 requests the network resources from the second network 730 through the first network function entity 711. The second network function entity 731 receives the resource acquisition request and returns access indication information to the first network function entity 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 is accessed. The terminal 720 uses the first network resource and the second network resource to jointly satisfy the service requirement.
Fig. 8 is a signaling interaction schematic diagram of a session connection system according to an embodiment of the present application. As shown in fig. 8, the signaling interaction process of the session connection system includes:
step S801, the terminal sends a GBR service request to the first network function entity.
In step S802, the first network function entity receives GBR, and recognizes that the first network resource cannot satisfy the GBR service request.
In 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 "second network providing network resources for the terminal" specifically means that the second network provides network resources (i.e., second network resources) in the second network for the terminal on the basis that the first network provides the first network resources for the terminal, so that the terminal obtains sufficient network resources from the network side (including the first network and the second network).
In step S804, the first network functional entity calculates a resource balance according to the GBR service request and the first network resource, and generates and transmits a resource acquisition request to the second network functional entity according to the user identifier and the resource balance of the second network.
In step S805, the second network function entity receives the resource acquisition request and acquires the location information of the terminal.
In step S806, the second network function entity determines whether the service can be provided for the terminal according to the location information of the terminal.
In step S807, in the case where it is determined that the terminal can be provided with the service, the second network function entity generates and transmits access indication information to the first network function entity.
In step S808, the first network function entity forwards the access indication information to the terminal.
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.
In step S810, the second network function 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 bear the GBR service together, so that the GBR service experience of the user is ensured.
Fig. 9 shows a schematic block diagram of an example electronic device 900 that may 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 telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the application described and/or claimed herein.
As shown in fig. 9, the apparatus 900 includes a computing unit 901 that can perform various appropriate actions and processes according to 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 computing unit 901, the ROM902, and the RAM903 are connected to each other by a bus 904. An input/output (I/O) interface 905 is also connected to the bus 904.
Various components in device 900 are connected to I/O interface 905, including: an input unit 906 such as a keyboard, a mouse, or 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, an optical disk, or the like; and a communication unit 909 such as a network card, modem, wireless communication transceiver, or 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 telecommunications 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 computing unit 901 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 901 performs the respective methods and processes described above, such as a session connection method. For example, in some embodiments, the session connection method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 908. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 900 via the ROM902 and/or the communication 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 circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On 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, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present application may be written in any combination of one or more programming languages. These program code 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 code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. 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. The 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 pointing device (e.g., a mouse or 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 may 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 input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background 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 background, 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 a client and a server. The client and server are typically 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 in this embodiment is a logic module, and in practical application, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present application, elements that are not so close to solving the technical problem presented in the present application are not introduced in the present embodiment, but it does not indicate that other elements are not present in the present embodiment.
It is to be understood that the above embodiments are merely illustrative of the exemplary embodiments employed to illustrate the principles of the present application, however, the present application is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the application, and are also considered to be within the scope of the application.

Claims (11)

1. A session connection method, comprising:
under the condition that a first network resource cannot meet the service requirement of a terminal, sending a resource acquisition request to a second network functional entity, wherein 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, the second network functional entity is a functional entity positioned in a second network, and the second network is a network which can provide the network resource for the terminal besides the first network;
receiving access indication information returned by the second network functional entity, wherein the access indication information is information returned by the second network under the condition that the second network can provide second network resources for the terminal, and the second network resources are network resources in the second network determined according to the resource acquisition request;
Transmitting 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;
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; wherein, the sending a resource obtaining request to the second network functional 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 a user identifier of the terminal in the second network;
calculating a resource balance 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 balance;
And sending the resource acquisition request to the second network functional entity.
2. The session connection method according to claim 1, 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, signal coverage network information of the terminal and/or network connection records of the terminal, wherein the preset strategy is a preset strategy used for selecting the second network.
3. The session connection method according to claim 1, wherein the obtaining the user identifier of the second network includes:
determining a user identifier of the second network according to account information corresponding to the subscription service when the terminal has the subscription service to the second network, wherein the account information corresponding to the subscription service is information acquired from the terminal;
and generating a temporary identifier for the terminal under the condition that the terminal does not have a subscription service for the second network, and taking the temporary identifier as a user identification of the second network.
4. 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 into 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 established in the second network by the second network function entity according to the second network resource.
5. A session connection method, comprising:
receiving a resource acquisition request sent by a first network function entity, wherein the resource acquisition request is a request sent under the condition that a first network resource cannot meet the service requirement of a terminal, the resource acquisition request is a request generated according to a user identifier of a second network and a resource balance, the second network is a network determined by the first network function entity under the condition that the first network resource cannot meet the service requirement of the terminal, the user identifier of the second network is the user identifier of the terminal in the second network, the resource balance is a balance calculated according to the service requirement of the terminal and the first network resource, the first network resource is a network resource in the first network, the first network is a network providing network resource for the terminal, and the first network function entity is a function entity located in the first network;
Generating and transmitting access indication information to the first network function entity under the condition that a second network resource is determined to be provided for the terminal, 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 in addition to 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 distributing second network resources for 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.
6. The session connection method according to claim 5, 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 to provide the second network resource for the terminal, the method further comprises:
determining a resource deficit according to the resource acquisition request, wherein the resource deficit is a deficit 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 of which the second network opens a use right for the terminal;
and obtaining a resource providing result according to the resource balance 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.
7. The session connection method according to claim 5 or 6, wherein the allocating a second network resource for 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 identification of the first connection session, so as to obtain the multi-connection session.
8. A network function entity device, comprising:
A first sending module configured to send a resource acquisition request to a second network functional entity in case that 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 the terminal with the network resource, and the second network functional entity is a functional entity located in a second network, and the second network is a network that can provide the terminal with the network resource in addition to the first network;
the first receiving module is configured to receive access indication information returned by the second network functional entity, wherein the access indication information is information returned by the second network under the condition that the second network can provide a second network resource 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 bear 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;
The first sending module is specifically configured to: 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 a user identifier of the terminal in the second network; calculating a resource balance 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 balance; and sending the resource acquisition request to the second network functional entity.
9. A network function entity device, comprising:
a second receiving module configured to receive a resource acquisition request sent by a first network function entity, where the resource acquisition request is a request sent when a first network resource cannot meet a service requirement of a terminal, the resource acquisition request is a request generated according to a user identifier of a second network and a resource balance, the second network is a network determined by the first network function entity when it is determined that the first network resource cannot meet the service requirement of the terminal, the user identifier of the second network is a user identifier of the terminal in the second network, the resource balance is a balance calculated according to the service requirement of the terminal and the first network resource, the first network resource is a network resource in a first network, the first network is a network providing the network resource for the terminal, and the first network function entity is a function entity located in the first network;
A generation module configured to generate access indication information in a case where it is determined that a second network resource can be provided for the terminal, 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 that can provide network resources for the terminal in addition to 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 the terminal, wherein the access request is a request generated by the terminal according to the access indication information;
and the allocation module is configured to allocate a second network resource for the terminal so that the first network function entity can establish a multi-connection session according to the first network resource and the second network resource.
10. An electronic device, 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 the session connection method of any of claims 1-4 or 5-7.
11. 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 of claims 1-4 or 5-7.
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