CN111917808B - Load control method, service provider NF and service user NF - Google Patents

Abstract

The invention provides a load control method, a service provider NF and a service user NF, wherein the method comprises the following steps: receiving a service request message sent by a service user NF; sending a service response message to the service user NF, wherein the service response message carries the resource address of the load control information; the embodiment of the invention solves the problem that the existing HTTP protocol can not carry out different operations on a plurality of resources in one service call by carrying the resource address of the load control information in the service response message, can superpose a universal end-to-end load control mechanism in the service call, and avoids expanding parameters with more quantity and complex types in the HTTP protocol, thereby being beneficial to flexibly expanding the load control information and avoiding the compatibility problem.

Description

Load control method, service provider NF and service user NF

technical field

The present invention relates to the field of communication technologies, and in particular, to a load control method and load control method, a service provider NF and a service user NF.

Background technique

The 5G core network adopts a service-oriented interface, and the service invocation between network functions (NF) is resource-oriented, and each service can only perform specific operations on one resource.

The 5G core network adopts a service-oriented architecture, and the interface between each NF adopts a service-oriented interface. The 5G service-oriented interface has clearly used the HTTP (HyperText Transfer Protocol, Hypertext Transfer Protocol)/2+TCP (Transmission Control Protocol, Transmission Control Protocol) protocol. The communication mechanism of service invocation is used between NFs, which is realized by HTTP, which is different from the message communication mechanism of P2P (peer-to-peer, point-to-point). The design style of API (Application Programming Interface) adopts REST (Representational State Transfer), which is resource-oriented and needs to be considered:

The operation on a given resource (create, read, update, delete) and supported HTTP methods (what the client wants the server to do with the resource).

When each service is called, the operation/HTTP method on the resource is related to the specific business process implemented by the service, and can only perform specific operations on one resource, and the resource and specific operations are designed according to the upper-layer application logic.

The signaling interworking between 5G NFs is in the control plane of the core network. In the case of emergencies such as NF failures or geological disasters, users may trigger a large number of attach, session establishment, and call routing query processes, resulting in signaling storms. In order to perform end-to-end load control, the service provider NF needs to report its load status and control strategy to each service user NF in real time. The load control information process is independent of specific interfaces and specific services.

In the prior art, the service provider NF reports its load status to the related service user NF through an NRF (Network Repository Function, network service discovery function) subscription/notification mechanism. That is, the service user NF needs to subscribe to the NRF for the load status of the service provider NF, and the service provider NF needs to register the load status of the NF and the load status of all services on the NF with the NRF, and update them. The following problems exist:

1. The end-to-end load control needs to transmit the load control information of the service provider NF, including the load information of the NF, the congestion level, the load control algorithm, the validity period of the load control, etc. The content is complex and there is a need for flexible expansion. However, the current NF registration information supports only one parameter of capacity for the load state, and it is only suitable for service users to use in service discovery and NF selection, and cannot implement control mechanisms such as end-to-end traffic adjustment.

2. The load status update process and notification process involve NRF, and need to detect the subscription events of NF. The real-time performance is poor, and it cannot be directed to notify users of a service to reduce the number of service requests.

3. The HTTP basic protocol does not currently support carrying load control information in the header parameters. If it is supported in the form of extended parameters, it is necessary to continuously define new parameters, which is not conducive to flexible expansion.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a load control method, a service provider NF and a service user NF, so as to solve the limitation problem that different operations cannot be performed on multiple resources in one service call in the existing HTTP protocol.

In order to solve the above problem, an embodiment of the present invention provides a load control method, which is applied to a service provider network function NF, including:

Receive the service request message sent by the service user NF;

Send a service response message to the service user NF, where the service response message carries the resource address of the load control information.

Wherein, the method also includes:

Create load control information and generate resource addresses for the load control information.

Wherein, the load control information is stored on the service provider NF, or the load control information is stored on other network entities.

Wherein, in the case that the load control information is stored on other network entities,

The network entity storing the load control information can provide the resource address of the load control information.

Wherein, the creating load control information and generating the resource address of the load control information includes:

After the service provider NF starts running, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets the preset congestion level, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF satisfies a preset congestion level, load control information is created and a resource address of the load control information is generated.

Wherein, the service response message also carries description information for indicating the resource name and/or purpose of the load control information.

Wherein, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Wherein, the method also includes:

The load control information is updated according to the load control information of the service provider NF and/or the load control information of at least one service provided by the service provider NF.

Wherein, the load control information is a resource including multiple resource attributes.

Wherein, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Wherein, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

The embodiment of the present invention also provides a load control method, which is applied to the service user network function NF, including:

Send a service request message to the service provider NF;

receiving a service response message sent by the service provider NF, where the service response message carries the resource address of the load control information;

The load control information is acquired according to the resource address of the load control information.

Wherein, the method also includes:

Flow control of the service request message to the service provider NF is triggered according to the load control information.

Wherein, acquiring the load control information according to the resource address of the load control information includes:

Acquire the load control information from the service provider NF according to the resource address of the load control information;

or,

According to the resource address of the load control information, the load control information is acquired from the network entity that stores the load control information.

Wherein, the service response message also carries description information for indicating the resource name and/or purpose of the load control information.

Wherein, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Wherein, the load control information is a resource including multiple resource attributes.

Wherein, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Wherein, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

An embodiment of the present invention further provides a service provider NF, including a processor and a transceiver, where the processor is configured to control the transceiver to perform the following process:

Receive the service request message sent by the service user NF;

Send a service response message to the service user NF, where the service response message carries the resource address of the load control information.

Wherein, the processor is also used for:

Create load control information and generate resource addresses for the load control information.

Wherein, the load control information is stored on the service provider NF, or the load control information is stored on other network entities.

Wherein, in the case that the load control information is stored on other network entities,

The network entity storing the load control information can provide the resource address of the load control information.

Wherein, the processor is also used for:

After the service provider NF starts running, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets the preset congestion level, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF satisfies a preset congestion level, load control information is created and a resource address of the load control information is generated.

Wherein, the service response message also carries description information for indicating the resource name and/or purpose of the load control information.

Wherein, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Wherein, the processor is also used for:

The load control information is updated according to the load control information of the service provider NF and/or the load control information of at least one service provided by the service provider NF.

Wherein, the load control information is a resource including multiple resource attributes.

Wherein, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Wherein, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

An embodiment of the present invention further provides a service user NF, including a processor and a transceiver, where the transceiver is configured to perform the following processes:

Send a service request message to the service provider NF;

receiving a service response message sent by the service provider NF, where the service response message carries the resource address of the load control information;

The processor is configured to perform the following processes:

The load control information is acquired according to the resource address of the load control information.

Wherein, the processor is also used to perform the following process:

Flow control of the service request message to the service provider NF is triggered according to the load control information.

Wherein, the processor is also used for:

Acquire the load control information from the service provider NF according to the resource address of the load control information;

or,

According to the resource address of the load control information, the load control information is acquired from the network entity that stores the load control information.

Wherein, the service response message also carries description information for indicating the resource name and/or purpose of the load control information.

Wherein, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Wherein, the load control information is a resource including multiple resource attributes.

Wherein, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Wherein, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

An embodiment of the present invention further provides a network module NF, including a memory, a processor, and a computer program stored on the memory and running on the processor; characterized in that, when the processor executes the program The load control method as described above is implemented.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the steps in the load control method as described above.

The above-mentioned technical scheme of the present invention has at least the following beneficial effects:

In the load control method, service provider NF and service user NF according to the embodiment of the present invention, when the service provider NF receives the service request message of the service user NF, the resource address of the load control information is passed through the current service response message Sent to the service user NF, the embodiment of the present invention, by carrying the resource address of the load control information in the service response message, solves the problem that the existing HTTP protocol cannot perform different operations on multiple resources in one service call on the one hand. , the general end-to-end load control mechanism can be superimposed when the service is invoked, and on the other hand, it avoids expanding the parameters with a large number and complex types in the HTTP protocol, which is conducive to the flexible expansion of the load control information and avoids compatibility problems.

Description of drawings

1 shows a flowchart of steps of a load control method applied to a service provider NF provided by an embodiment of the present invention;

FIG. 2 shows one of the schematic flow charts of acquiring load control information in the load control method provided by an embodiment of the present invention;

FIG. 3 shows the second schematic diagram of the acquisition process of load control information in the load control method provided by the embodiment of the present invention;

4 is a schematic diagram showing a manner of a resource address carrying load control information in a service response message in a load control method provided by an embodiment of the present invention;

FIG. 5 shows a flowchart of steps of a load control method applied to a service user NF provided by an embodiment of the present invention;

6 shows a schematic structural diagram of a service provider NF provided by an embodiment of the present invention;

FIG. 7 shows a schematic structural diagram of a service user NF provided by an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1, an embodiment of the present invention provides a load control method, which is applied to a service provider network function NF, including:

Step 11, receive the service request message sent by the service user NF;

Step 12: Send a service response message to the service user NF, where the service response message carries the resource address of the load control information.

The service provider NF may also be an HTTP server or other network node capable of performing the same operation, which is not specifically limited here.

Preferably, after the service provider NF starts the end-to-end load control, when receiving the service request message from the service user NF, the service response message (including success and failure) carries the resource address of the load control information.

Optionally, the resource address of the load control information is a resource address in a URI (Uniform Resource Identifier, Uniform Resource Identifier) format.

Optionally, the load control information is a resource including multiple resource attributes; or, the load control information is a structured resource, and the structured resource may include resource attributes of different levels.

As an optional embodiment, the method further includes:

Create load control information and generate resource addresses for the load control information.

The load control information created by the service provider NF may be stored in the service provider NF, or the load control information may be stored in other network entities. When the load control information is stored on other network entities, the network entity storing the load control information can provide the resource address of the load control information.

For example, as shown in FIG. 2, the load control information created by the service provider NF is on the service provider NF, and URI#1 is the resource address of the load control information. The service provider NF carries the resource address in the service response message (ie, appresource,_link:URI#1 in FIG. 2 ), and the service user NF obtains load control information from the service provider NF according to the resource address and implements load control.

As shown in Figure 3, the load control information resource created by the service provider NF is located in the load control information storage entity. The resource address of the load control information is provided by the load control information storage entity. After the service provider NF obtains the resource address of the load control information (URI#1 is the resource address of the load control information), the service provider NF carries the resource address in the service response message (ie appresource,_link:URI#1 in Figure 2). ), the service user NF obtains the load control information from the load control information storage entity according to the resource address and implements the load control.

Further, the creating load control information and generating the resource address of the load control information includes:

After the service provider NF starts running, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets the preset congestion level, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF satisfies a preset congestion level, load control information is created and a resource address of the load control information is generated.

In short, the service provider NF can generate load control information and resource addresses after starting operation, and can also satisfy a certain end-to-end load control threshold or a certain end-to-end load control threshold when its load or the load of one of its services is impacted by a signaling storm. After the congestion level, load control information and resource addresses are generated.

As a preferred embodiment, the service response message also carries description information used to indicate the resource name and/or purpose of the load control information.

In other words, the resource address of the load control information carried by the service provider NF in the service response message may also carry description information for the load control information, and may indicate the resource name and/or purpose.

As another preferred embodiment, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

In other words, the resource address of the load control information carried by the service provider NF in the service response message may be located in a resource attribute of the original resource in the service response message; it may also be located in a specific resource independent of the original resource. in the resource properties.

For example, as shown in Figure 4, _link:{} is a resource attribute of the APP resource, carrying href and relation parameters, href indicates the resource address URI of the load control information, and relation indicates the purpose of the resource corresponding to the resource address ( OCI: overload control information, load control information).

Further, after the service provider NF starts the end-to-end load control, the method further includes:

The load control information is updated according to the load control information of the service provider NF and/or the load control information of at least one service provided by the service provider NF.

Optionally, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

Load control strategy of service provider NF; such as predefined business priority, service priority, etc.;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy of at least one service provided by the service provider NF, such as service operation priority, etc.

It should be noted that the above-mentioned information included in the load control information is used as a resource attribute of the load control information.

It should be further noted that the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

As an optional embodiment, the service response message carries resource addresses of multiple load control information; the service response message also carries: indication information that matches the resource addresses of the multiple load control information respectively, so The indication information is used to indicate the applicable condition of the load control information corresponding to the resource address. Specifically, the indication information may indicate the load control logic of the load control information corresponding to the resource address, and the like.

In the embodiment of the present invention, the service provider NF performs the end-to-end load control logic instruction, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider NF load control requirements.

Further, the service response message also carries:

The service names and service operations respectively corresponding to the resource addresses of the multiple load control information are used to indicate to the service user NF a service call that can be executed subsequently.

In this embodiment of the present invention, the service provider NF indicates the load control logic by providing resource addresses of different load control information and their applicable conditions. The service response message may also include the service name and service operation, indicating to the service user NF the service invocation that can be executed subsequently and the resource address involved.

To sum up, in the above embodiments of the present invention, when the service provider NF receives the service request message from the service user NF, it sends the resource address of the load control information to the service user NF through the current service response message. By carrying the resource address of the load control information in the service response message, the embodiment solves the problem that the existing HTTP protocol cannot perform different operations on multiple resources in one service invocation on the one hand, and can superimpose common The end-to-end load control mechanism, on the other hand, avoids the expansion of parameters with a large number and complex types in the HTTP protocol, which is conducive to the flexible expansion of load control information and avoids compatibility problems. In the embodiment of the present invention, the service provider NF also performs the instruction of the end-to-end load control logic, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider Load control requirements for NF.

As shown in FIG. 5 , an embodiment of the present invention further provides a load control method, which is applied to the service user network function NF, including:

Step 21, sending a service request message to the service provider NF;

Step 22, receiving a service response message sent by the service provider NF, where the service response message carries the resource address of the load control information;

Step 23: Acquire load control information according to the resource address of the load control information.

In the embodiment of the present invention, when receiving the service request message from the service user NF, the service provider NF sends the resource address of the load control information to the service user NF through the current service response message, and the service user NF receives the load After the resource address of the control information is obtained, the load control information is acquired according to the resource address of the load control information.

The service user NF may also be an HTTP client or other network node capable of performing the same operation, which is not specifically limited here.

Preferably, after the service provider NF starts the end-to-end load control, when receiving the service request message from the service user NF, the service response message (including success and failure) carries the resource address of the load control information.

Optionally, the resource address of the load control information is a resource address in a URI (Uniform Resource Identifier, Uniform Resource Identifier) format.

Optionally, the load control information is a resource including multiple resource attributes; or, the load control information is a structured resource, and the structured resource may include resource attributes of different levels.

Further, the method also includes:

Flow control of the service request message to the service provider NF is triggered according to the load control information.

In other words, the service user NF receives the resource address of the load control information from the service response message, obtains the load control information of the service provider NF according to the resource address, and triggers the flow of the service request message to the service provider NF according to the load control information control.

It should be noted that, the load control information created by the service user NF may be stored in the service provider NF, or the load control information may be stored in other network entities. When the load control information is stored on other network entities, the network entity storing the load control information can provide the resource address of the load control information.

Correspondingly, step 23 includes:

Acquire the load control information from the service provider NF according to the resource address of the load control information;

or,

According to the resource address of the load control information, the load control information is acquired from the network entity that stores the load control information.

As a preferred embodiment, the service response message also carries description information used to indicate the resource name and/or purpose of the load control information.

In other words, the resource address of the load control information carried by the service provider NF in the service response message may also carry description information for the load control information, and may indicate the resource name and/or purpose.

As another preferred embodiment, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

In other words, the resource address of the load control information carried by the service provider NF in the service response message may be located in a resource attribute of the original resource in the service response message; it may also be located in a specific resource independent of the original resource. in the resource properties.

Optionally, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

It should be noted that the above-mentioned information included in the load control information is used as a resource attribute of the load control information.

It should be further noted that the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

As an optional embodiment, the service response message carries a plurality of resource addresses of load control information; the service response message also carries: indication information respectively matching the resource addresses of the plurality of load control information, the The indication information is used to indicate the applicable condition of the load control information corresponding to the resource address. Specifically, the indication information may indicate the load control logic of the load control information corresponding to the resource address, and the like.

In the embodiment of the present invention, the service provider NF performs the end-to-end load control logic instruction, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider NF load control requirements.

Further, the service response message also carries:

The service names and service operations respectively corresponding to the resource addresses of the multiple load control information are used to indicate to the service user NF a service call that can be executed subsequently.

In this embodiment of the present invention, the service provider NF indicates the load control logic by providing resource addresses of different load control information and their applicable conditions. The service response message may also include the service name and service operation, indicating to the service user NF the service invocation that can be executed subsequently and the resource address involved.

Correspondingly, the method further includes: performing a subsequent service call according to the service name, service operation and resource address carried in the service response message.

In other words, after receiving the resource address list and applicable conditions of the load control information, the service user NF obtains the load control information according to the applicable conditions and resource addresses; at the same time, it performs subsequent service calls according to the service name and service operation.

To sum up, in the above embodiments of the present invention, when the service provider NF receives the service request message from the service user NF, it sends the resource address of the load control information to the service user NF through the current service response message, and the service uses After receiving the resource address of the load control information, the NF acquires the load control information according to the resource address of the load control information; the embodiment of the present invention solves the problem of existing HTTP by carrying the resource address of the load control information in the service response message on the one hand. In the protocol, it is impossible to perform different operations on multiple resources in one service call. The general end-to-end load control mechanism can be superimposed when the service is called. parameter, which is conducive to the flexible expansion of load control information and avoids compatibility problems. In the embodiment of the present invention, the service provider NF also performs the instruction of the end-to-end load control logic, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider NF load control requirements.

As shown in FIG. 6 , an embodiment of the present invention further provides a service provider NF, including a processor 300 and a transceiver 310, where the processor 300 is configured to control the transceiver 310 to perform the following processes:

Receive the service request message sent by the service user NF;

Send a service response message to the service user NF, where the service response message carries the resource address of the load control information.

Optionally, in the foregoing embodiment of the present invention, the processor 300 is further configured to:

Create load control information and generate resource addresses for the load control information.

Optionally, in the above embodiment of the present invention, the load control information is stored in the service provider NF, or the load control information is stored in other network entities.

Optionally, in the foregoing embodiment of the present invention, in the case that the load control information is stored on other network entities,

The network entity storing the load control information can provide the resource address of the load control information.

Optionally, in the foregoing embodiment of the present invention, the processor 300 is further configured to:

After the service provider NF starts running, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provider NF meets the preset congestion level, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information;

or,

When the load of the service provided by the service provider NF satisfies a preset congestion level, load control information is created and a resource address of the load control information is generated.

Optionally, in the above embodiment of the present invention, the service response message further carries description information used to indicate the resource name and/or purpose of the load control information.

Optionally, in the above embodiment of the present invention, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Optionally, in the foregoing embodiment of the present invention, the processor 300 is further configured to:

The load control information is updated according to the load control information of the service provider NF and/or the load control information of at least one service provided by the service provider NF.

Optionally, in the above embodiment of the present invention, the load control information is a resource including multiple resource attributes.

Optionally, in the foregoing embodiment of the present invention, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Optionally, in the above embodiment of the present invention, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

To sum up, in the above embodiments of the present invention, when the service provider NF receives the service request message from the service user NF, it sends the resource address of the load control information to the service user NF through the current service response message. By carrying the resource address of the load control information in the service response message, the embodiment solves the problem that the existing HTTP protocol cannot perform different operations on multiple resources in one service invocation on the one hand, and can superimpose common The end-to-end load control mechanism, on the other hand, avoids the expansion of parameters with a large number and complex types in the HTTP protocol, which is conducive to the flexible expansion of load control information and avoids compatibility problems. In the embodiment of the present invention, the service provider NF also performs the instruction of the end-to-end load control logic, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider Load control requirements for NF.

It should be noted that, the service provider NF provided by the embodiment of the present invention is a service provider NF capable of executing the above load control method, and all the embodiments of the above load control method are applicable to the service provider NF, and can achieve same or similar beneficial effects.

An embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored on the memory and running on the processor, where the processor implements the above-mentioned application when executing the program Each process in the embodiment of the load control method of the service provider NF can achieve the same technical effect. To avoid repetition, details are not repeated here.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements each process in the foregoing embodiments of the load control method applied to a service provider NF, And can achieve the same technical effect, in order to avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

As shown in FIG. 7 , an embodiment of the present invention further provides a service user NF, including a processor 400 and a transceiver 410, where the transceiver 410 is configured to perform the following processes:

Send a service request message to the service provider NF;

receiving a service response message sent by the service provider NF, where the service response message carries the resource address of the load control information;

The processor 400 is configured to perform the following processes:

The load control information is acquired according to the resource address of the load control information.

Optionally, in the foregoing embodiment of the present invention, the processor 400 is further configured to perform the following process:

Flow control of the service request message to the service provider NF is triggered according to the load control information.

Optionally, in the foregoing embodiment of the present invention, the processor 400 is further configured to:

Acquire the load control information from the service provider NF according to the resource address of the load control information;

or,

According to the resource address of the load control information, the load control information is acquired from the network entity that stores the load control information.

Optionally, in the above embodiment of the present invention, the service response message further carries description information used to indicate the resource name and/or purpose of the load control information.

Optionally, in the above embodiment of the present invention, the resource address of the load control information is located in a resource attribute of the first resource in the service response message;

The first resource is a resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message.

Optionally, in the above embodiment of the present invention, the load control information is a resource including multiple resource attributes.

Optionally, in the foregoing embodiment of the present invention, the load control information includes at least one of the following information:

Load information of service provider NF;

The congestion level of the service provider NF;

Load control algorithm of service provider NF;

The load control validity period of the service provider NF;

The load control strategy of the service provider NF;

Load information of at least one service provided by the service provider NF;

the congestion level of at least one service provided by the service provider NF;

a load control algorithm for at least one service provided by the service provider NF;

the load control validity period of at least one service provided by the service provider NF;

Load control policy for at least one service provided by the service provider NF.

Optionally, in the above embodiment of the present invention, the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF;

The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF.

To sum up, in the above embodiments of the present invention, when the service provider NF receives the service request message from the service user NF, it sends the resource address of the load control information to the service user NF through the current service response message, and the service uses After receiving the resource address of the load control information, the NF obtains the load control information according to the resource address of the load control information; the embodiment of the present invention solves the problem of existing HTTP on the one hand by carrying the resource address of the load control information in the service response message. In the protocol, it is impossible to perform different operations on multiple resources in one service call. The general end-to-end load control mechanism can be superimposed when the service is called. parameter, which is conducive to the flexible expansion of load control information and avoids compatibility problems. In the embodiment of the present invention, the service provider NF also performs the instruction of the end-to-end load control logic, which can avoid the mismatch between the local policy of the service user NF and the policy of the service provider NF, and better satisfy the service provider Load control requirements for NF.

It should be noted that the service user NF provided by the embodiment of the present invention is a service user NF capable of executing the above load control method, and all the embodiments of the above load control method are applicable to the service user NF, and can achieve same or similar beneficial effects.

An embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored on the memory and running on the processor, where the processor implements the above-mentioned application when executing the program Each process in the embodiment of the load control method for serving the user NF can achieve the same technical effect. To avoid repetition, details are not described here.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements each process in the foregoing embodiments of the load control method applied to a service user NF, And can achieve the same technical effect, in order to avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

As will be appreciated by one skilled in the art, the embodiments of the present application may be provided as a method, a system or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

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

These computer program instructions may also be stored in a computer-readable storage medium capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce a paper product comprising the instruction means, The instruction means implements the functions specified in the flow or flows of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded onto a computer or other programmable data processing device to cause the computer or other programmable device to perform a series of operational steps to produce a computer-implemented process, whereby the instructions to be executed on the computer or other programmable device Steps are provided for implementing the functions specified in a flow or flows of the flowcharts and/or a block or blocks of the block diagrams.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (23)

1. A load control method, applied to service provider network function NF, is characterized in that, comprising: Receive the service request message sent by the service user NF; Sending a service response message to the service user NF, where the service response message carries the resource address of load control information, where the load control information includes: the load control policy of the service provider NF, and/or the The load control policy of at least one service provided by the service provider NF; There are multiple resource addresses of the load control information; the service response message also carries: indication information respectively matching the resource addresses of the multiple load control information, the indication information is used to indicate The applicable condition of the load control information corresponding to the resource address. 2. The method according to claim 1, wherein the method further comprises: Create load control information and generate resource addresses for the load control information. 3 . The method according to claim 2 , wherein the load control information is stored in the service providing NF, or the load control information is stored in other network entities. 4 . 4. The method according to claim 3, wherein, when the load control information is stored on other network entities, The network entity storing the load control information can provide the resource address of the load control information. 5. The method according to claim 2, wherein the creating load control information and generating the resource address of the load control information comprises: After the service provider NF starts running, creating load control information and generating a resource address of the load control information; or, When the load of the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information; or, When the load of the service provider NF meets the preset congestion level, creating load control information and generating a resource address of the load control information; or, When the load of the service provided by the service provider NF meets a preset load control threshold, creating load control information and generating a resource address of the load control information; or, When the load of the service provided by the service provider NF satisfies a preset congestion level, load control information is created and a resource address of the load control information is generated. 6 . The method according to claim 1 , wherein the service response message further carries description information for indicating the resource name and/or usage of the load control information. 7 . 7. The method according to claim 1, wherein the resource address of the load control information is located in a resource attribute of the first resource in the service response message; Wherein, the first resource is the resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message. 8. The method according to claim 2, wherein the method further comprises: The load control information is updated according to the load control information of the service provider NF and/or the load control information of at least one service provided by the service provider NF. 9 . The method according to claim 1 , wherein the load control information is a resource including multiple resource attributes. 10 . 10. The method according to claim 1, wherein the load control information comprises at least one of the following information: Load information of service provider NF; The congestion level of the service provider NF; Load control algorithm of service provider NF; The load control validity period of the service provider NF; Load information of at least one service provided by the service provider NF; the congestion level of at least one service provided by the service provider NF; a load control algorithm for at least one service provided by the service provider NF; The load control validity period of at least one service provided by the service provider NF. 11. The method according to claim 1, wherein the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF; The service response message is a service response of the service provider NF to a service request message of any service invocation of any service sent by the service user NF. 12. A load control method, applied to service user network function NF, characterized in that, comprising: Send a service request message to the service provider NF; Receive a service response message sent by the service provider NF, where the service response message carries the resource address of load control information, where the load control information includes: the load control policy of the service provider NF, and/or the Load control policy of at least one service provided by the service provider NF; There are multiple resource addresses of the load control information; the service response message also carries: indication information respectively matching the resource addresses of the multiple load control information, the indication information is used to indicate The applicable conditions of the load control information corresponding to the resource address; The load control information is acquired according to the resource address of the load control information. 13. The method of claim 12, wherein the method further comprises: Flow control of the service request message to the service provider NF is triggered according to the load control information. 14. The method according to claim 12, wherein obtaining the load control information according to the resource address of the load control information comprises: Acquire the load control information from the service provider NF according to the resource address of the load control information; or, According to the resource address of the load control information, the load control information is acquired from the network entity that stores the load control information. 15. The method according to claim 12, wherein the service response message further carries description information for indicating the resource name and/or usage of the load control information. 16. The method according to claim 12, wherein the resource address of the load control information is located in a resource attribute of the first resource in the service response message; Wherein, the first resource is the resource related to the service request in the service response message, or the first resource is a resource that is independent of the resource related to the service request in the service response message. 17. The method according to claim 12, wherein the load control information is a resource including multiple resource attributes. 18. The method according to claim 12, wherein the load control information comprises at least one of the following information: Load information of service provider NF; The congestion level of the service provider NF; Load control algorithm of service provider NF; The load control validity period of the service provider NF; Load information of at least one service provided by the service provider NF; the congestion level of at least one service provided by the service provider NF; a load control algorithm for at least one service provided by the service provider NF; The load control validity period of at least one service provided by the service provider NF. 19. The method according to claim 12, wherein the service request message is a service request for any service invocation by the service user NF to any service provided by the service provider NF; The service response message is the service response of the service provider NF to the service request message of any service invocation of any service sent by the service user NF. 20. A service provider NF, comprising a processor and a transceiver, wherein the processor is configured to control the transceiver to perform the following process: Receive the service request message sent by the service user NF; Sending a service response message to the service user NF, where the service response message carries the resource address of the load control information; the load control information includes: the load control policy of the service provider NF, and/or the The load control policy of at least one service provided by the service provider NF; There are multiple resource addresses of the load control information; the service response message also carries: indication information respectively matching the resource addresses of the multiple load control information, the indication information is used to indicate The applicable condition of the load control information corresponding to the resource address. 21. A service user NF, comprising a processor and a transceiver, wherein the transceiver is used to perform the following processes: Send a service request message to the service provider NF; Receive a service response message sent by the service provider NF, where the service response message carries the resource address of load control information, where the load control information includes: the load control policy of the service provider NF, and/or the Load control policy of at least one service provided by the service provider NF; There are multiple resource addresses of the load control information; the service response message also carries: indication information respectively matching the resource addresses of the multiple load control information, the indication information is used to indicate The applicable conditions of the load control information corresponding to the resource address; the processor is configured to perform the following processes: The load control information is acquired according to the resource address of the load control information. 22. A network module NF, comprising a memory, a processor and a computer program stored on the memory and running on the processor; it is characterized in that, when the processor executes the program, the program is implemented as claimed in the claims The load control method according to any one of 1-11; or, when the processor executes the program, the load control method according to any one of claims 12-19 is implemented. 23. A computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the steps in the load control method according to any one of claims 1-11 are implemented; or, When the program is executed by the processor, the steps in the load control method according to any one of claims 12-19 are implemented.

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