CN111263404B - Load control method, device and system - Google Patents

Abstract

The application provides a method, a device and a system for load control, which are used for realizing the control of network function network element loads, and the method comprises the following steps: a network storage network element receives a first request from a first network element; the network storage network element acquires a selection strategy of a target second network element group required to be provided according to the first request, wherein the selection strategy is used for selecting the target second network element in the target second network element group; the network storage network element determines the selection strategy according to the operation information of one or more second network elements in the target second network element group; and the network storage network element sends the selection strategy to the first network element.

Description

Method, device and system for load management and control

technical field

The present application relates to the field of communication technologies, and in particular, to a method, device and system for load management and control.

Background technique

The fifth generation (5th-Generation, 5G) communication system supports data connection and service enabling deployment. In the 5G system, the network elements of various network functions can interact based on services. A Network Repository Function (NRF) network element provides functions such as registration and discovery of network function (NF) network element services. Each NF can register its own description information (NF Profile) and provided services to the NRF. When a NF service consumer needs to invoke a service, it can initiate a service discovery request to the NRF, and the NRF returns the list of NF service providers that meet the query conditions to the NF service consumer, and the NF service consumer further obtains the NF service providers in the list. The description information of the NF service provider, so that the NF service consumer can select a target NF service provider according to the description information and local configuration of the NF service provider, and initiate a service request.

In the above service discovery process, the selection algorithm of NF service consumers is unique, and the information defined in the NF Profile cannot completely determine the selection of the target NF service provider, that is, each NF service consumer selects the target NF service. The provider is not completely controllable, so the existing technology cannot uniformly control the load of a certain NF. Furthermore, the existing technology is also difficult to fully meet the load of the NF in scenarios such as elastic expansion and contraction, failure or upgrade. the need for control.

SUMMARY OF THE INVENTION

The present application provides a method, device and system for load management and control, which are used to realize the management and control of the load of network function network elements.

In a first aspect, the present application provides a load management and control method, the method includes: a network storage network element receives a first request from a first network element; and the network storage network element learns, according to the first request, that it needs to provide a selection strategy of the target second network element group, where the selection strategy is used to select a target second network element in the target second network element group; the network storage network element or the operation information of multiple second network elements, to determine the selection strategy; the network storage network element sends the selection strategy to the first network element.

Through the above method, the network storage network element determines a selection strategy according to the operation information of the second network element in the target second network element group, and provides it to the first network element, and the first network element selects the target second network element group according to the selection strategy The second network element in the target network realizes the unified management of the load of the second network element by the network storage network element, and avoids the uncontrollable load of the second network element caused by the selection of the first network element according to its own unique algorithm. Further, when the operation of one or more second network elements in the target second network element group changes, the network storage network element can adjust the selection strategy in time according to the operation change, so as to realize fast and efficient control of the load of the second network element, Reduce management, operation and maintenance costs.

In a possible design, the network storage network element obtains policy data, the policy data includes one or more first conditions and selection rules corresponding to the first conditions, and the network storage network element determines the policy The target first condition in the data and the target selection rule corresponding to the target first condition; the network storage network element determines, according to the operation information of one or more second network elements in the target second network element group, A second network element that satisfies the first condition of the target; the network storage network element determines the selection strategy as: selecting from the second network elements that meet the first condition of the target according to the target selection rule.

In the above possible design, the network storage network element determines the target first network element according to the operation information of one or more second network elements in the target second network element group and/or the first request and the policy data condition and a target selection rule corresponding to the first condition.

In the above possible design, the network storage network element obtains the policy data from the operation and maintenance system, or the network storage network element obtains data from one or more second network elements in the target second network element group of the policy data.

Wherein, the first condition includes any one or more of the following: network slice type, user type, version, and location.

The selection rules include any one or more of the following: polling selection, random selection, weighted selection, selection based on object groups, and selection based on client service identifiers.

In a possible design, the network storage network element determines the selection strategy according to the operation information of one or more second network elements in the target second network element group, including two ways:

Manner 1: The network storage network element acquires the operation information of one or more second network elements in the target second network element group, where the operation information includes information of the operation state; the network storage network element obtains the operation information according to the The information on the running status of one or more second network elements in the target second network element group determines the first selection strategy.

In the above manner 1, the network storage network element determines the first selection strategy according to the running state information of the second network element in the target second network element group, and provides it to the first network element, and the first network element selects according to the first selection strategy The target second network element in the target second network element group realizes the unified management of the load of the second network element by the network storage network element, and avoids the load of the second network element caused by the selection of the first network element according to its own unique algorithm. control situation.

Manner 2: The network storage network element acquires the operation information of one or more second network elements in the target second network element group, where the operation information includes operation change information; The information on the operation change of one or more second network elements in the target second network element group is used to determine the second selection strategy.

Through the above method 2, when the operation of one or more second network elements in the target second network element group changes, the network storage network element can adjust the selection strategy in time according to the operation change, so as to realize fast and efficient control of the load of the second network element , reduce the cost of management, operation and maintenance.

In a possible design of Manner 1, the network storage network element obtains a list of public resource groups; the network storage network element allocates the public resource group to the second network in the target second network element group element; the network storage network element is based on information on the operation status of one or more second network elements in the target second network element group, and the operation status information includes the second network element in the target second network element group. element corresponding to the allocated public resource group, and determine the first selection strategy, where the first selection strategy includes the allocated public resource group corresponding to the second network element in the target second network element group .

In a possible design of Manner 1, the first request includes a second service type, which is used to request to invoke the second service, and the network storage network element obtains the corresponding service type corresponding to the second service type according to the first request. The list of the second network element group, the list of the second network element group includes the target second network element group; the network storage network element learns that the first selection policy corresponding to the target second network element group needs to be provided.

In the above possible design, the network storage network element sends the list of the second network element group to the first network element, which can be specifically divided into two cases:

Case 1: The network storage network element obtains, according to the first request, a list of second network element groups corresponding to the second service type, and learns that a list of second network element groups needs to be provided, and the second network element groups on the list are respectively Corresponding to the selection strategy, the list of the second network element group includes the target second network element group. The network storage network element returns a list of the second network element groups and their corresponding selection policies to the first network element, including the target second network element group and its first selection policy.

Scenario 2: The network storage network element obtains the list of second network element groups corresponding to the second service type according to the first request, and returns the list of the second network element groups to the first network element. The list of second network element groups includes the target second network element group; the network storage network element receives the identifier of the target second network element group from the first network element, and stores the target second network element group according to the identifier of the target second network element group. The identifier is obtained, the selection policy of the target second network element group needs to be provided, and the first selection policy is returned to the first network element.

In a possible design of Manner 2, the first request includes the identifier of the target second network element group, which is used for subscribing to the selection policy of the target second network element group, and the network storage network element according to the target second network element group The identifier of the second network element group, and it is learned that the second selection policy corresponding to the target second network element group needs to be provided.

In a possible design of Manner 2, if the operational change includes reallocation of a common resource group, the network storage network element reallocates the common resource group to the target second network element group the second network element, and determine a second selection strategy according to the newly allocated public resource group corresponding to the second network element in the second network element group, where the second selection strategy includes the target second network element group The newly allocated public resource group corresponding to the second network element in the

In a second aspect, the present application provides a load management and control method, the method includes: a first network element learns that a second service needs to be invoked; the first network element learns a target second network element group, the target second network element The second network element in the tuple can provide the second service; the first network element obtains the selection policy of the target second network element group from the network storage network element, and the selection policy is used to select the target first network element. The target second network element in the two network element group, the selection policy is determined according to the operation information of one or more second network elements in the target second network element group; the first network element is based on the The policy is selected, and the target second network element is determined.

Through the above method, the first network element obtains the selection strategy from the network storage network element, and the selection strategy is determined according to the operation information of one or more second network elements in the target second network element group. The first network element selects the target second network element in the target second network element group according to the selection strategy, which realizes the unified management of the load of the second network element by the network storage network element, and avoids the first network element according to its own unique algorithm. The selection causes the load of the second network element to be uncontrollable. Further, when the operation of one or more second network elements in the target second network element group changes, the first network element can select the target second network element according to the adjusted selection strategy, so as to realize fast and efficient load on the second network element. Efficient control reduces management, operation and maintenance costs.

In a possible design, the first network element learns that the second service needs to be invoked, and the first network element learns the target second network element group and the first network element obtains data from the network storage network element. There is no sequence relationship between the selection policies of the target second network element group. For example, the first network element can obtain the target second network element group and the selection policy of the target second network element group after learning that the second service needs to be invoked; or the first network element subscribes to obtain the target second network element group and the target second network element group. The selection strategy of the two network elements, and then learn that the second service needs to be invoked.

In a possible design, the first network element obtains the selection policy from the network storage network element in two ways:

Manner 1: The operation information includes operation state information, and the selection policy is a first selection policy, and the first selection policy is based on the operation state information of the second network element in the target second network element group and/or or determined by the first request.

In the above manner 1, the first network element obtains the first selection strategy from the network storage network element, where the first selection strategy is based on one or more second network elements of the second network elements in the target second network element group The information on the operating status is determined. The first network element selects the target second network element in the target second network element group according to the first selection strategy, which realizes the unified management of the load of the second network element by the network storage network element, and avoids the first network element according to their unique characteristics. The selection of the algorithm results in the uncontrollable load of the second network element.

In a possible design of Manner 1, the first network element sends a first request to the network storage network element, where the first request includes a second service type and is used to request to invoke the second service.

Mode 2: The operation information includes operation change information, and the selection strategy is a second selection strategy, and the second selection strategy is based on the operation changes of one or more second network elements in the target second network element group information is determined.

Through the above method 2, when the operation of one or more second network elements in the target second network element group changes, the first network element can select the target second network element according to the adjusted second selection policy, so as to realize the Fast and efficient control of network element loads reduces management, operation and maintenance costs.

In a possible design of Manner 2, the first network element sends a first request to the network storage network element, where the first request includes the identifier of the target second network element group, which is used to subscribe to all network elements. Describe the selection strategy of the target second network element group.

In a possible design, the selection strategy includes a target selection rule, and a second network element, and the operation information of the second network element satisfies the target first condition corresponding to the target selection rule;

Then, the first network element selects the target second network element from the second network elements that satisfy the target first condition according to the target selection rule.

In a possible design, the first network element receives a second request, where the second request includes the type of the requested first service, and the first service needs to call the second service.

Wherein, the selection strategy described in the first aspect and the second aspect may include any one or more of the following: polling selection and the second network element within the selection range, random selection and the second network element within the selection range Network element, weighted selection and the second network element within the selection range, selection according to the object group and the second network element within the selection range, selection according to the client service identifier and the second network element within the selection range.

In the methods described in the first aspect and the second aspect, the information on the running state may include any one or more of the following: the version of the second network element in the target second network element group, the version of the second network element in the target second network element group, the The capacity of the second network element, the load of the second network element in the target second network element group, the location of the second network element in the target second network element group, the service provided by the second network element in the target second network element group information, the network quality of the second network element in the target second network element group, and the information of the public resources of the second network element in the target second network element group.

In the methods described in the first aspect and the second aspect, the information about the operation change may include any one or more of the following: capacity expansion, capacity reduction, upgrade, failure, and reallocation of public resources.

In a third aspect, the present application provides a network storage network element, where the network storage network element has the function of implementing the method described in the first aspect above. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware and software include one or more modules corresponding to the above functions.

In a possible design, the structure of the network storage network element includes a processing unit and a communication unit, the processing unit is configured to support the network storage network element to perform the method described in the first aspect, the communication unit uses to support communication between the network storage network element and other devices. The network storage network element may further include a storage unit, which is configured to be coupled with the processing unit and store necessary program instructions and data of the network storage network element. As an example, the processing unit may be a processor, the communication unit may be a transceiver, and the storage unit may be a memory.

In the above possible design, the communication unit includes a receiving unit and a sending unit, and these units can execute the method described in the first aspect. For details, please refer to the detailed description in the method example, which will not be repeated.

In a fourth aspect, the present application provides an apparatus (eg, the apparatus may be a system-on-a-chip), the apparatus including a processor, and capable of executing the method described in the first aspect above.

In one possible design, the apparatus further includes a memory for storing necessary program instructions and data.

In a fifth aspect, the present application provides a computer program product which, when run on a computer, enables the computer to perform the method described in the first aspect above.

In a sixth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, which, when executed on a computer, enable the computer to perform the method described in the first aspect.

In a seventh aspect, the present application provides a service consumer network element, the service consumer network element having the function of implementing the method described in the second aspect above. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware and software include one or more modules corresponding to the above functions.

In a possible design, the structure of the service consumer network element includes a processing unit and a communication unit, the processing unit is configured to support the service consumer network element to perform the method described in the second aspect above, and the communication unit for supporting communication between the service consumer network element and other devices. The service consumer network element may further include a storage unit for coupling with the processing unit, which stores necessary program instructions and data for the service consumer network element. As an example, the processing unit may be a processor, the communication unit may be a transceiver, and the storage unit may be a memory.

In the above possible design, the communication unit includes a receiving unit and a sending unit, and these units can execute the method described in the second aspect above. For details, please refer to the detailed description in the method example, which will not be repeated.

In an eighth aspect, the present application provides an apparatus (eg, the apparatus may be a system-on-a-chip), the apparatus including a processor, and capable of executing the method described in the second aspect above.

In one possible design, the apparatus further includes a memory for storing necessary program instructions and data.

In a ninth aspect, the present application provides a computer program product which, when run on a computer, enables the computer to perform the method described in the second aspect above.

In a tenth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, which, when executed on a computer, enable the computer to execute the method described in the second aspect above.

In an eleventh aspect, the present application provides a communication system, the system includes the network storage network element involved in the first aspect, and one of the first network elements (ie, the service consumer network element) involved in the second aspect or multiple.

In a possible design, the communication system may further include the second network element (ie, the service provider network element) involved in the above aspects.

In a possible design, the communication system may further include other devices that interact with the network storage network element, the first network element, or the second network element in the solution provided by the embodiment of the present application, such as a terminal, a base station, and the like.

Description of drawings

1 is a schematic diagram of a possible system framework provided by this application;

Fig. 2 is the schematic flow chart of the general method of service selection;

3 is a flowchart of a load management and control method provided by the present application;

3a is a schematic diagram of a network element deployment provided by the present application;

FIG. 4 is a flowchart of a load management and control method 400 provided by the present application;

FIG. 5 is a flowchart of a load management and control method 500 provided by the present application;

FIG. 6 is a flowchart of a load management and control method 600 provided by the present application;

FIG. 7 is a flowchart of a load management and control method 700 provided by the present application;

FIG. 8 is a flowchart of a load management and control method 800 provided by the present application;

FIG. 9 is a flowchart of a load management and control method 900 provided by the present application;

FIG. 10 is a flowchart of a load management and control method 1000 provided by the present application;

11 is a schematic diagram of a communication device provided by this application;

FIG. 11a is a schematic diagram of a network storage network element provided by this application;

FIG. 11b is a schematic diagram of a service consumer network element provided by this application;

FIG. 12 is a schematic diagram of a communication device provided by this application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the embodiments of the present application will be described below with reference to the accompanying drawings. In the description of this application, unless otherwise stated, "/" indicates that the object associated with it is an "or" relationship, for example, A/B can indicate A or B; "and/or" in this application is only It is an association relationship that describes an associated object, indicating that there can be three kinds of relationships, for example, A and/or B, which can be expressed as: A alone exists, A and B exist at the same time, and B exists alone, among which A, B Can be singular or plural. Also, in the description of the present application, unless stated otherwise, "plurality" means two or more than two. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (wideband) system code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5th generation, 5G) system or new Wireless (new radio, NR) and so on.

The terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminals in future evolved public land mobile networks (PLMN) equipment, etc., which are not limited in this embodiment of the present application.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile communications (GSM) system or code division multiple access (CDMA) The base transceiver station (BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved) in the LTE system. NodeB, eNB or eNodeB), it can also be a wireless controller in the cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and future The network equipment in the 5G network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.

FIG. 1 is a network architecture applied to an embodiment of the present application. As shown in FIG. 1 , each network element involved in the network architecture is described respectively.

1. (Radio Access Network, (R)AN) network element: It is used to provide network access functions for authorized users in a specific area, and can use different quality transmission tunnels according to user levels and service requirements. . The (R)AN network element can manage wireless resources, provide access services for terminal equipment, and then complete the forwarding of control signals and user data between the terminal equipment and the core network. The (R)AN network element can also be understood as a traditional network element. base station;

2. User plane network element: used for packet routing and forwarding, and quality of service (Quality of Service, QoS) processing of user plane data.

In a 5G communication system, the user plane network element may be a user plane function (User Plane Function, UPF) network element. In the future communication system, the user plane network element may still be the UPF network element, or may have other names, which are not limited in this application.

3. Data network: It is used to provide a network for transmitting data, etc.

In a 5G communication system, the data network element may be a data network (Data Network, DN). In the future communication system, the data network may still be DN, or may have other names, which are not limited in this application.

4. Authentication service network element: used to realize user authentication and authentication.

In a 5G communication system, the authentication service network element may be an authentication server function (authentication server function, AUSF) network element. In the future communication system, the authentication service network element may still be the AUSF network element, or may have other names, which are not limited in this application.

5. Access management network element: mainly used for mobility management and access management, etc., and can be used to implement other functions other than session management in the mobility management entity (mobility management entity, MME) function, for example, lawful interception And access authorization/authentication functions.

In a 5G communication system, the access management network element may be an access management function (Access and mobility Management Function, AMF) network element. In the future communication system, the access management network element may still be an AMF network element, or may have other names, which are not limited in this application.

6. Session management network element: mainly used for session management, Internet Protocol (IP) address allocation and management of terminal equipment, selection of endpoints that can manage user plane functions, policy control and charging function interfaces, and downlink data notification Wait.

In a 5G communication system, the session management network element may be a session management function (Session Management Function, SMF) network element. In the future communication system, the session management network element may still be an SMF network element, or may have other names, which are not limited in this application.

7. Network slice selection network element: It is mainly used to select the network slice used for the terminal device.

In a 5G communication system, the network slice selection function network element may be a network slice selection function (networkslice selection function, NSSF) network element. In the future communication system, the network element of the network slice selection function may still be an NSSF network element, or may have other names, which are not limited in this application.

8. Network opening network element: used to safely open the services and capabilities provided by the 3GPP network function network element to the outside.

In a 5G communication system, the network exposure network element may be a network exposure function (Network Exposure Function, NEF) network element. In the future communication system, the network opening network element may still be the NEF network element, or may have other names, which are not limited in this application.

9. Network storage network element: used to store information of network functions deployed in the core network, and to provide discovery of network functions and services.

In the 5G communication system, the network storage network element can be a network storage function (Network RepositoryFunction, NRF) network element. In the future communication system, the network storage network element can still be an NRF network element, and can also have other names. The application is not limited.

10. Policy control network element: a unified policy framework for guiding network behavior, providing policy rule information and the like for control plane functional network elements (such as AMF, SMF network elements, etc.).

In a 5G communication system, the policy control network element may be a policy control function (Policy Control Function, PCF) network element. In the future communication system, the policy control network element may still be the PCF network element, or may have other names, which are not limited in this application.

11. Data management network element: used to process user identification, access authentication, registration, and mobility management.

In a 5G communication system, the data management network element may be a unified data management (Unified Data Management, UDM) network element. In the future communication system, the data management may still be a UDM network element, or may have other names, which are not limited in this application.

12. Application network elements: used for data routing affected by applications, access network elements with open functions, and interacting with the policy framework for policy control, etc.

In a 5G communication system, the application network element may be an application function (Application Function, AF) network element. In the future communication system, the application network element may still be the AF network element, or may have other names, which are not limited in this application.

13. Terminal equipment: can include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of terminals, mobile stations (mobile stations, MS) ), a terminal (terminal), a user equipment (user equipment, UE), a soft terminal, etc., such as a water meter, an electricity meter, a sensor, and the like.

It can be understood that the above network elements or functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (eg, a cloud platform).

In this network architecture, Nausf is the service-based interface presented by the AUSF network element 105, Namf is the service-based interface presented by the AMF network element 106, Nsmf is the service-based interface presented by the SMF107 network element, and Nnssf is the service-based interface presented by the NSSF108 network element. Nnef is the service-based interface presented by the NEF network element 109, Nnrf is the service-based interface presented by the NRF network element 110, Npcf is the service-based interface presented by the PCF network element 111, and Nudm is the UDM network element The service-based interface presented by 112 , and Naf is the service-based interface presented by the AF network element 113 . N1 is a reference point between UE101 and AMF network element 106, and N2 is a reference point between (R)AN network element 102 and AMF network element 106, which is used for sending non-access stratum (Non-accessstratum, NAS) messages, etc.; N3 is the reference point between the (R)AN network element 102 and the UPF network element 103, which is used to transmit data on the user plane, etc.; N4 is the reference point between the SMF network element 107 and the UPF network element 103, which is used to transmit, for example, The tunnel identification information of the N3 connection, the data buffer indication information, and the downlink data notification message; the N6 interface is the reference point between the UPF network element 103 and the DN network element 104, and is used to transmit data on the user plane.

It should be understood that the above-mentioned network architecture applied to the embodiments of the present application is only an example of the network architecture described from the perspective of service-oriented architecture, and the network architecture applied to the embodiments of the present application is not limited to this. Any network elements that can implement the above-mentioned network elements The functional network architectures are all applicable to the embodiments of the present application.

For example, in some network architectures, network function network element entities such as AMF network element 106, SMF network element 107, NRF network element 110, PCF network element 111, and UDM network element 112 are called network functions (NF) network element; or, in other network architectures, the set of network elements such as AMF network element 106, SMF network element 107, NRF network element 110, PCF network element 111, UDM network element 112, etc., may be referred to as control plane function network elements .

Among them, NF network elements can be defined as different NFs according to function categories, such as: authentication and security functions, packet data session management functions, mobility management functions, access control functions, policy control functions, etc. These functions are controlled by corresponding NF components. Implementation, each NF component provides services to other NF components or functions through the defined service interface. Multiple network slices (sliceA, sliceB and sliceC) of the same operator use the same public landmobile network (PLMN) and can be deployed in the operator's infrastructure through cloud technology and virtualization technology, etc. The operator's technical facilities include the operator's cloud computing and transmission infrastructure.

Hereinafter, the consumer of the service and the provider of the service are any two NF network elements mentioned above as an example (the NF network element that is the consumer of the service will be referred to as the first network element in the following, and the NF network element that is the provider of the service will be referred to as the first network element. called the second network element). A general method 200 of service selection in the prior art will be described with reference to FIG. 2 . The method 200 includes the following steps:

S201 : The second network element 1 sends a registration request to the network storage network element, and the network storage network element receives the registration request from the second network element 1 . The registration request includes description information (NF profile) of the second network element 1 . The description information of the second network element 1 includes: the identifier of the second network element 1, the type of the second network element 1, the service name supported by the second network element 1, the service endpoint of the second network element 1, the second network element 1 The capacity of element 1 and the load of the second network element 1.

S202: The network storage network element stores the description information of the second network element 1.

It should be noted that the second network element 1 is just an example, and other second network elements perform the same operations, which will not be repeated here.

S203: When the first network element needs to invoke the second service, it sends a service discovery request (Nnrf_NFDiscovery_Request) to the network storage network element, and the network storage network element receives the service discovery request from the first network element. The second service is a service provided by the second network element, and the service discovery request is used to query the second service, including the type of the second service.

S204: The network storage network element determines, according to the service discovery request and the description information of the second network element, that the second service is a service (authorize NF service) provided by the second network element.

S205: The network storage network element returns a service discovery response message (Nnrf_NFDiscovery_Request Response) to the first network element, and the first network element receives the service discovery response message from the second network element of the network storage network element. Wherein, the service discovery response message includes a list of second network elements and description information of each second network element, and the list of second network elements includes second network element 1 .

S206: The first network element selects the target second network element according to the description information of the second network element and the local configuration, and initiates a request for the second service to the target second network element (eg, second network element 1).

It can be seen from FIG. 2 that in the prior art, the selection of the target second network element by the first network element is completed by the cooperation between the first network element and the network storage network element, and the NRF queries the description of the second network element stored locally. information, determine that the second network element can invoke the second service, and then return the list of the second network elements to the first network element. The first network element obtains the description information of the second network element in the list according to the list of the second network element, selects the target second network element according to the description information of the second network element and the local configuration, and reports to the target second network element. The element initiates a request for the second service.

In the prior art, the method for the first network element to select the second network element is unique, and the description information of the second network element is only an input parameter for the first network element to select the second network element, and cannot completely determine the second network element. In other words, the selection of the second network element is not completely controllable, and therefore, the load carried on the second network element cannot be uniformly managed and controlled. Further, in scenarios such as elastic capacity expansion, elastic capacity reduction, failure or upgrade of the second network element, the prior art cannot realize the unified management and control of the load of the second network element.

In this regard, the following embodiments provide a load management and control method to solve the above technical problems.

First, the relevant terms involved in the embodiments of the present application are explained:

1. Instance Discovery&Selection Policy: a policy for selecting a target second network element in the second network element group for the first network element, specifically including one or more selection rules and the range of the second network element selected. For example: polling to select the second NE within the selection range, random selection and the second NE within the selection range, weighted selection and the second NE within the selection range, selection according to the object group and its selection range The second network element within the hash selection and the second network element within the selection range.

2. Policy data: including one or more selection rules and their corresponding first conditions, wherein the selection rule is a rule for the network storage network element to determine the selection policy, and the selection rule is, for example, polling selection, random selection, weighted selection, One or more of object group selection, hash selection. The first condition is, for example, one or more of the network slice type of the second network element service object, the version of the second network element, the user type that the second network element can serve, and the location of the second network element.

3. Operation information: information related to the operation of the network function network elements in the network function network element group, specifically including operation status information and operation change information. The operation state information may be information about the operation state of the network function network element, and the operation change information may be information about the operation change of the network function network element.

4. Common resources: resources allocated jointly by the network function network elements in the network function network element group. For example, the following object resources and IP address resources. By grouping public resources, public resource groups can be obtained, for example, the following object groups and IP address groups.

5. Object resource: a type of public resource. The object may be the object corresponding to the second service provided by the second network element, the object resource may be the number of objects, such as 10 million objects, and the object resources may be divided into object groups, such as 10 million objects divided into 10 The object resources of each object group are 1 million objects.

Next, the relevant descriptions are given to the embodiments of the present application:

1. Multiple second network elements of the same type form one or more second network element groups, one or more second network element groups and the second network elements in the group are installed and deployed, and registered on the network storage network element .

Further, the network storage network element allocates one or more common resource groups, such as object groups, to the second network elements in the second network element group.

2. When the first network element needs to call the service of the second network element, such as the second service, a target second network element group can be discovered and selected through the network storage network element, and a target second network element group can be further selected in the second network element group. The second network element.

Regarding how the first network element selects a target second network element in a target second network element group, reference may be made to the description in the subsequent embodiments. For example, the network storage network element provides the first network element with a selection policy, the selection policy includes rules on how to select the target second network element, and the second network element within the selection range, and the first network element selects according to the selection policy.

Taking FIG. 3a as an example, multiple second network elements (second network element 1, second network element 2, second network element 4, and second network element 5) form two second network element groups (second network element 2). tuple 311, the second network element group 312), further, the first network elements 1, 2, 4, and 5 can respectively assign object group 1 and object group 2, object group 3 and object group 4, object group 7 and object group Group 8, Object Group 9 and Object Group 10. When the first network element needs to invoke the second service of the second network element, the target second network element group such as the second network element group 311 can be found through the network storage network element, and further, according to the selection policy provided by the network storage network element, A target second network element such as the second network element 1 is selected in the second network element group 311 , so as to implement unified management and control of the loads of the second network element 1 and the second network element 2 in the second network element group 311 .

The following describes a load management and control method provided by an embodiment of the present application with reference to FIG. 3 . As shown in FIG. 3 , the specific steps are as follows:

S301: The first network element sends a first request to a network storage network element, and the network storage network element receives the first request from the first network element.

Specifically, S301 can be used in any of the following scenarios:

Scenario 1: If the first network element invokes the second service, the first request is used for service discovery to discover the network element corresponding to the second service, that is, the second network element.

Scenario 2: The first request is used to subscribe to the selection policy of the second network element in the target second network element group. For example, the first network element has obtained the first selection policy before (for example, obtained when the second service is invoked in scenario 1), and the first network element changes the operation of the second network element in the target second network element group for subsequent changes. The new second selection policy can be acquired in time, and the first network element subscribes to the network storage network element for the selection policy of the second network element in the target second network element group, so as to realize the selection of the second network element in the target second network element group. Timely adjustment of the load; or the first network element may also subscribe to the network storage network element for a selection policy corresponding to the relevant second network element group after installation and deployment.

S302: Optionally, the network stores the policy data of the target second network element group obtained by the network element.

In one example, the operation and maintenance system or other entities can provide policy data to the network storage network element through a configuration interface, a service-based interface (SBI) interface or an API interface. The source of the following policy data is the same as this one The description in the example is not repeated here.

In an example, the operation and maintenance system provides the policy data to the second network element of the target second network element group, and the second network element provides the policy data to the network storage network element during the registration process.

In one example, the policy data may be the content shown in Table 1a, including one or more first conditions and selection rules corresponding to the first conditions, wherein: the conditions may be any one or more of the following: network Slice type, user type, version, location, and the selection rule can be any one or more of the following: polling selection, random selection, weighted selection, selection based on object group, and hash selection. For details, see Table 1a.

Table 1a

Specifically, the policy data can be:

example 1:

if network slice type = MBB, Round Robin

Description: Among the second network elements that can provide services for MBB type network slices, a polling method is used to select the target second network element.

Example 2:

if version=1, weight is 96%

if version=2, weight is 4%

Description: Among the second network elements that satisfy the version 1, the target second network element is selected with a weight of 96%. That is, 96% of the second services need to select the second network element whose version is 1 as the target second network element.

Among the second network elements that satisfy version 2, the target second network element is selected with a weight of 4%.

Example 3:

if URLCC is supported, weight is 100%, Round Robin between instances

if URLCC is not supported, weight is 0%

Description: The second network element that supports providing services for URLCC type network slices (hereinafter referred to as the second network element that supports URLCC) is selected with a weight of 100%, that is, 100% of the second service selects the second network element that supports URLCC, Further, the target second network element is selected in a polling manner among the plurality of second network elements supporting the URLCC.

The second network element that does not support URLCC is selected in a weight of 0%.

It should be noted that S302 is optional in the second scenario of S301, and there is no sequence between S301 and S302. S301 can be executed first, then S302 can be executed, or S302 can be executed first, and then S301 can be executed, or S301 and S301 can be executed at the same time. S302, which is not limited in this application.

S303: The network storage network element learns, according to the first request, that a selection policy needs to be provided, and the selection policy is used to select a target second network element in the target second network element group.

According to the first request, the network storage network element learns that the selection policy needs to be provided in any of the following ways:

Manner 1: when the first request includes the second service type and is used to request to invoke the second service, the network storage network element obtains a list of second network element groups corresponding to the second service type according to the first request, Wherein, the list of the second network element group includes the target second network element group; the network storage network element further learns that the first selection policy corresponding to the target second network element group needs to be provided. Reference can be made to the description in FIG. 4 .

Method 2: When the first request includes the identifier of the target second network element group and is used to subscribe to the selection policy of the target second network element group, the network storage network element according to the identifier of the target second network element group , and learns that the second selection policy corresponding to the target second network element group needs to be provided. Reference can be made to the description in FIG. 6 .

It should be noted that the selection strategy includes selection rules and their corresponding second network elements in the target second network element group, which may be any one or more of the following: polling selection and its second network elements, random selection and Its second network element, weighted selection and its second network element, object group selection and its second network element, Hash selection and its second network element.

See Table 1b for details. Taking the second network element 1 and the second network element 2 in the second network element group 311 in FIG. 3a as an example, the polling selection is to select the target second network element in the target second network element in turn in order. The network element, specifically, can be selected in turn according to the order of the second network element 1 and the second network element 2; the random selection is the random selection of the target second network element within the target second network element, specifically, the second network element can be randomly selected 1 or the second network element 2; the weighted selection is to select the target second network element according to the weight of the second network element in the target second network element, specifically, the second network element can be selected at a ratio of 96%, and the ratio of 4% can be selected. The second network element 2; according to the object group selection, the target second network element is selected according to the object group to which the object belongs. Specifically, when the group to which the object belongs is group 1 and group 2, the second network element 1 is selected, and the group to which the object belongs is selected. For group 3 and group 4, the second network element 2 is selected; the hash selection is to select the target second network element according to the client service identifier.

Table 1b

In an example, optionally, the selection policy may further include a corresponding second condition, for example, the condition for polling selection (second network element 1, second network element 2) is no session, as shown in Table 1c for details. content.

Table 1c

Specifically, for the description of no session and session, please refer to the description in FIG. 5 .

S304: The network storage network element determines a selection strategy according to the operation information of the second network element in the target second network element group;

In an example, when the network storage network element obtains the policy data of the target second network element group in S302, wherein the policy data includes one or more first conditions and selection rules corresponding to the first conditions, then S304 may specifically include the following steps 304a-304c:

304a: The network storage network element determines the target first condition and the target selection rule corresponding to the target first condition. The network storage network element may determine the target first condition in the policy data according to the operation information of the second network element in the target second network element group, the information carried in the first request, or one or more of other information, and the target selection rule corresponding to the first condition of the target;

304b: The network storage network element determines, according to the operation information of the second network element in the target second network element group and the target first condition, a second network element in the target second network element group that satisfies the target first condition;

304c: Determine a selection strategy according to steps 304a and 304b: select according to the target selection rule in the second network element that satisfies the first target condition. The selection strategy includes a target selection rule and a second network element that satisfies the first condition of the target.

In one example, the operation information of the second network elements in the target second network element group may include: information about the operation status and/or operation change information of one or more second network elements in the target second network element group. in,

1: Information about the running status of the second network element in the target second network element group

It should be noted that the information of the running status can be any one or more of the following: the version of the second network element in the target second network element group, the capacity of the second network element in the target second network element group, the target second network element The load of the second network element in the network element group, the location of the second network element in the target second network element group, the information on the services provided by the second network element in the target second network element group, the number of the second network element in the target second network element group The network quality of the second network element, and information about the public resources of the second network element in the target second network element group.

2: Information about the operation change of one or more second network elements in the target second network element group

It should be noted that the information of the operation change can be any one or more of the following: the expansion of the target second network element group, the reduction of the target second network element group, the failure of the second network element in the target second network element group . The second network element in the target second network element group is upgraded, and the public resources of the target second network element group are reallocated.

The common resources may be resources jointly allocated by the second network elements in the second network element group, such as object resources and address resources.

Specifically, the object may be, for example: taking the NF in the 5G network as an example, when the second network element is an AMF, the object of the AMF may be the user; when the second network element is the SMF, the object of the SMF may be the managed session ; When the second network element is a UDR, the object of the UDR may be stored user data.

Correspondingly, the object resource and the object group may be, for example: taking the NF in the 5G network as an example, when the second network element is the AMF, the object resource may be the number of users, the object group may be the user group, and each user group contains Object resources of each group; when the second network element is SMF, the object resource can be the number of sessions, and the object group can be the session group; when the second network element is UDR, the object resource can be the number of user data, and the object group can be for the user data group.

Specifically, the network storage network element determines the selection strategy according to the operation information of the second network element in the target second network element group, which may include the following methods:

Manner 1: If the first network element invokes the second service, the network storage network element determines the first selection policy according to the policy data and information about the running state of the second network element in the target second network element group.

In an example, when the first request in S301 includes the type of the second service and the slice type corresponding to calling the second service is MBB, and the policy data in S302 includes "if network slice type=MBB, Round Robin", According to the slice type MBB included in the first request, the network storage network element determines that the first condition of the target in the corresponding policy data is network slice type=MBB, and the target selection rule is polling selection; The information on the running state of the second network element in the tuple and the target first condition "if network slice type=MBB" determine the second network element in the target second network element group that can provide the second service for the MBB type network slice: Specifically, the network storage network element determines the second network element 1 according to the operation information of the second network element 1 and the operation state information of the second network element 2, and the second network element 2 can provide the second service for the MBB type network slice. ; The network storage network element determines that the first selection strategy is: the second network element 1 and the second network element 2 are selected in turn in order. The issued policies are shown in Table 1d below:

first choice strategy Polling selection: 2nd NE 1, 2nd NE 2

Table 1d

For example: when the policy data in S302 is "if version=1, weight is 96%; if version=2, weight is 4%", the network storage network element determines that the first condition of the target is the version, and the target selection rule is weighted selection; The network storage network element determines the version of the second network element in the target second network element group according to the information on the running state of the second network element in the target second network element group: the version of the second network element 1 is v1, and the second network element The version of 1 is v2; the network storage network element determines that the first selection strategy is: 96% of the second service of the target second network element group selects the second network element 1 as the target second network element, and the target second network element group 4% of the second service selects the second network element 2 as the target second network element. The issued policies are shown in Table 1e below:

first choice strategy Weighted selection: 96% second network element 1, 4% second network element 2

Table 1e

Manner 2: If the operation of the second network element in the target second network element group changes, the network storage network element determines the second selection strategy according to the information about the operation change of the second network element in the target second network element group.

Specifically, when the operation of the second network element in the target second network element group changes, the network storage network element obtains the operation change information, and determines the second selection strategy according to the operation change information. Wherein, the second selection strategy may include a new target selection rule and a second network element that satisfies the first condition of the new target, or the second selection strategy may include relevant information that the first selection strategy needs to be adjusted.

In an example: taking the second network element 1 and the second network element 2 in the second network element group 311 in FIG. 3a as an example:

If the first selection strategy is round-robin selection (second NE 1, second NE 2), the operation change information is capacity expansion. According to the registration request of the second network element 3, the element determines that the second selection strategy is polling selection (second network element 1, second network element 2, second network element 3), and the issued strategy is shown in Table 1f below ; or the second selection strategy may be: adding the second network element 3 to the first selection strategy.

second choice strategy Polling selection: 2nd NE 1, 2nd NE 2, 2nd NE 3

Table 1f

If the first selection strategy is round-robin selection (second network element 1, second network element 2, second network element 3), the information of the operation change is the shrinkage or failure, such as the second network element in the second network element group 311. Element 3 goes offline, the network storage NE determines that the second selection strategy is the polling selection (second NE 1, second NE 2) according to the de-registration request of the second NE 3, and the issued strategy is as follows 1g; or the second selection strategy may be: removing the second network element 3 from the first selection strategy.

second choice strategy Polling selection: 2nd NE 1, 2nd NE 2

Table 1g

If the first selection strategy is polling selection (second network element 1, second network element 2), the operation change information is an upgrade, for example, the second network element 3 in the second network element group 311 is upgraded from version 1 to version 2 . The policy data obtained before the network storage network element includes "if version=1, the weight is 96%; if version=2, the weight is 4%" or the network storage network element can obtain new policy data "if version=1, the weight is 96%; if version=2, weight is 4%". The network storage network element determines that the target first condition in the corresponding policy data is the version, the selection rule is weighted selection, and the version The weight of the second network element of version 1 is 96%, and the weight of the second network element of version 2 is 4% (for version testing). The network storage network element then determines the second network element 1, the version of the second network element 2 is v1; the version of the second network element 3 is v2, and further determines that the second selection strategy is weighted selection (96% of the second network element 1 , the second network element 2; the second network element 3 (4%) issued policies are shown in Table 1h below.

Table 1h

It should be noted that 96% of the second network element 1 and the second network element 2 means that 96% of the services are provided by the second network element 1 or the second network element 2 .

If the first selection strategy includes selection according to the object group (group 1, second network element 1; group 2, second network element 1; group 3, second network element 2; group 4, second network element 2), the operation change information is the object group reassignment, for example, the second network element 3 in the second network element group 311 goes offline, the network storage network element learns the object group 5, 6, and reassign it to the second network element 1 and the second network element 2, so the second selection strategy is re-determined, for example, the second selection strategy is re-determined to select according to the object group (group 1, 2, 5 second network element 1 ; The policies issued by the second network element 2) of groups 3, 4, and 6 are shown in Table 1i below.

Table 1i

S305: The network storage network element sends the selection policy to the first network element, and the first network element receives the selection policy from the network storage network element.

In an example, the selection policy may be included in the description information of the target second network element group (for example: NF Setprofile) and sent to the first network element, or may be separately defined as a sub-resource of the target second network element group (for example, with The NF set profiles are parallel and independent of the sub-resources of the NF set profiles) and are sent to the first network element.

In one example, the selection strategy may include the first selection strategy or the second selection strategy described in S303.

S306: The first network element determines the target second network element in the target second network element group according to the selection policy.

In one example, take the selection strategy in Table 1c:

If the received selection strategy is a polling selection (second network element 1, second network element 2), the first network element selects the second network element in sequence; or

If the received selection strategy is random selection (second network element 1, second network element 2), the first network element selects the second network element randomly; or

If the received selection strategy is a weighted selection (second network element 1 96%; second network element 2 4%), the first network element selects the second network element by weight; or

If the received selection policy is that there is a session, select it according to the object group (the second NE 1 in group 1; the second NE 1 in group 2; the second NE 2 in group 3; the second NE 2 in group 4). A network element selects a corresponding second network element according to the object group to which the session belongs;

Through the above method, the network storage network element determines a selection strategy according to the operation information of the second network element in the target second network element group, and provides it to the first network element, and the first network element selects the target second network element group according to the selection strategy The second network element in the target network realizes the unified management of the load of the second network element by the network storage network element, and avoids the uncontrollable load of the second network element caused by the selection of the first network element according to its own unique algorithm. Further, when the operation of one or more second network elements in the target second network element group changes, the network storage network element can adjust the selection strategy in time according to the operation change, so as to realize fast and efficient control of the load of the second network element, Reduce management, operation and maintenance costs.

The load management and control method provided in FIG. 3 is described in detail below with reference to FIGS. 4-10 of specific embodiments.

Example 1:

As shown in FIG. 4 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the first network element invokes the second service, the network storage network element determines the first selection strategy according to the running state information of the second network element in the target second network element group, which specifically includes the following steps:

S401: The multiple second network elements are divided into one or more second network element groups, one or more second network element groups, and the installation and deployment of the second network elements in the group.

In one example, the one or more second network element groups may be the second network element group 311 shown in FIG. 3 a , where the second network element group 311 includes the second network element 1 and the second network element 2 . It can be understood that the second network element group 311 may also include multiple other second network elements, and this embodiment only takes the second network element 1 and the second network element 2 as examples. Optionally, in the case of multiple second network element groups, the second network element group 312 in FIG. 3 a is further included, wherein the second network element group 312 includes the second network element 4 and the second network element 5 .

It should be noted that a second network element group may include one or more second network elements, and FIG. 3 a is an example, which does not constitute a limitation to the present application.

The following steps take the second network element group 311 as an example, that is, the target second network element group is the second network element group 311, which does not constitute a limitation to the present application.

S402: The second network element 1 sends the message 1 to the network storage network element for registration, and the first network element receives the message 1 from the second network element. Message 1 is for registration. The message 1 includes the identifier of the second network element group 311 and the identifier of the second network element 1 .

The identifier of the second network element group 311 is information that can uniquely identify the second network element group 311, such as any one or more of instance group ID (NF set ID) and network element function set ID.

The identifier of the second network element 1 is information that can uniquely identify the second network element 1, for example, it may be any one or more of the IP address and instance ID of the second network element 1.

In one example: the message 1 includes the operating status information of the second network element 1 .

It should be noted that the content of the information about the running status of the second network element 1 is the same as the information about the running status of the second network element in the target second network element group in S304, and the difference lies in the information main body of the running status in S304. For the second network element in the network element group, the information subject of the running state in S402 is the second network element 1, which will not be repeated here.

It should be noted that the description of S402 takes the second network element 1 as an example, and other second network elements in the group, such as the second network element 2, perform the same steps, which will not be repeated here.

S403: The network stores the policy data 1 of the second network element group 311 obtained by the network element.

In an example, the policy data 1 may include one or more selection rules and one or more corresponding conditions. For details, please refer to the description in S302, which will not be repeated here.

The following steps take policy data 1 as if network slice type=MBB, Round Robin as an example.

S404: The first network element learns that the second service needs to be invoked.

Specifically, the first network element determines that it needs to call the second service according to its own needs, or the first network element receives a second request, where the second request includes the type of the requested first service, and the first service needs to call the second network element the second service.

It should be noted that the second request may originate from a network entity requesting the first service (referred to as entity 1 below), for example, may be a terminal or a network element in the network architecture shown in FIG. 1 .

S405: The first network element sends a first request to the network storage network element, and the network storage network element receives the first request from the first network element, where the first request is used to invoke the second service.

Specifically, the first request may carry the type of the second service.

In one example, the first request includes a slice type (eg, MBB) corresponding to the second service.

It should be noted that there is no sequence between S405 and S403, S405 may be performed first, then S403, or S403 may be performed first, and then S405, or S403 and S405 may be performed simultaneously, which is not limited in this application.

S406a to S410a, or S406b to S408b are subsequently executed.

case a

S406a: The network storage network element returns a list of second network element groups (for example, including the second network element group 311 and the second network element group 312) to the first network element, and the first network element receives the first network element from the network storage network element. A list of two network tuples.

S407a: The first network element selects the second network element group 311 according to the list of the second network element group.

S408a: The first network element sends the message 2 to the network storage network element, and the network storage network element receives the message 2 from the first network element. The message 2 is used to query the description information of the second network element group 311 , including the identifier of the second network element group 311 .

S409a: The network storage network element determines the first selection strategy according to the information on the operating states of the second network element 1 and the second network element 2 in the second network element group 311 .

In an example, the network storage network element determines that the selection rule is polling selection according to the slice type in the first request and corresponds to the conditions in the policy data 1. Further, the network storage network element determines the selection rule according to the second network element 1 and the second The running status of the network element 2 (such as capacity, network quality, etc.) determines that the second network element 1 and the second network element 2 can provide the second service, so that the first selection strategy is determined as:

S410a: The network storage network element sends the description information of the second network element group 311 to the first network element, wherein the description information includes the first selection policy, and the first network element receives the description information of the second network element group 311 from the network storage network element. Description. S411 is subsequently executed.

Case b:

S406b: The network storage network element determines a list of second network element groups and their corresponding selection policies (for example, including the second network element group 311 and its first selection policy, and the second network element group 312 and its fourth selection policy) ;

S407b: The network storage network element sends the list of the second network element group and the corresponding selection policy to the first network element, and the first network element receives the list of the second network element group and the corresponding selection policy from the network storage network element (For example, it includes the second network element group 311 and the first selection policy corresponding to the second network element group 311, and the second network element group 312 and the selection policy corresponding to the second network element group 312).

S408b: The first network element selects the second network element group 311 and its first selection policy according to the list of the second network element group and its corresponding selection policy. S411 is subsequently executed.

S411: The first network element selects the second network element 1 according to the first selection policy.

Specifically, the first network element is selected in turn according to the order of the second network element 1 and the second network element 2, for example, the second network element 1 is selected.

In an example, the first selection policy further includes a second condition, such as polling to select (second network element 1, second network element 2) when there is no session. The first network element judges that there is no record of entity 1 calling the second service-related session 1, and then determines to use polling selection (second network element 1, second network element 2), such as selecting second network element 1.

The second network element 1 here is an example of the target second network element in the target second network element group in S306, which does not constitute a limitation to this application, and the selection of the second network element 1 involved in the following steps is also It is also used as an example, so it is not repeated here.

S412: Optionally, the first network element stores the first selection policy.

In an example, when the operation of the second network element in the second network element group 311 has not changed, the first network element receives the third request, wherein the third request needs to invoke the second service of the second network element, then the first network element receives the third request. A network element selects the second network element 2 in turn according to the first selection policy.

Through the above method, the network storage network element determines the first selection strategy according to the running state information of the second network element in the target second network element group, and provides it to the first network element, and the first network element selects the target according to the first selection strategy The target second network element in the second network element group realizes the unified management of the load of the second network element by the network storage network element, and avoids the uncontrollable load of the second network element caused by the selection of the first network element according to its own unique algorithm Case.

Embodiment 2:

As shown in FIG. 5 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the first selection strategy includes: when there is no session, select by polling (second network element 1, second network element 2); when there is a session, select according to the object group (group 1, second network element 1; group 2, second network element) element 1; second network element 2 of group 3; second network element 2 of group 4), specifically include the following steps:

S501-503: the same as S401-S403, and will not be repeated.

S504: The network storage network element acquires the object group resource of the second network element group 211.

In one example, the network storage network element obtains the object group resources from the operation and maintenance system.

In one example, the network storage network element simultaneously obtains the object group resources and policy data 1 from the operation and maintenance system.

S505: The network storage network element allocates the object group list to the second network element 1 and the second network element 2, and the second network element 1 and the second network element 2 receive the object group list allocated from the network storage network element. For example, as shown in FIG. 3 a , the object groups allocated to the second network element 1 are the object group 1 and the object group 2 , and the object groups allocated to the second network element 2 are the object group 3 and the object group 4 .

S506-510: Same as S404-S408a, no further description is given.

S511 : The network storage network element determines a first selection strategy according to the information on the operating states of the second network element 1 and the second network element 2 in the second network element group 311 and/or the first request.

Specifically, the network storage network element determines that the selection rule is polling selection according to the slice type in the first request and corresponds to the first condition in the policy data 1. Further, the network storage network element determines the selection rule according to the second network element 1 and the second The allocation of the object group of network element 2 determines that the first selection strategy is: when there is no session, polling selects (second network element 1, second network element 2); when there is a session, selects according to the object group (object group 1 The second network element 1; the second network element 1 of the object group 2; the second network element 2 of the object group 3; the second network element 2 of the object group 4).

S512: The network storage network element sends the first selection policy to the first network element, and the first network element receives the first selection policy from the network storage network element.

It should be noted that S509 can be combined with S512, for example, the network storage network element can send the list of the second network element group 311 and the second network element group 312 and the description information of each group to the first network element at the same time. This is not limited.

S513: The first network element selects the second network element 1 according to the first selection policy.

Specifically, if the first network element determines that the session record 1 related to entity 1 does not exist, the second network element 1 and the second network element 2 are selected in turn according to the order of the second network element 1, for example, the second network element 1 is selected.

It should be noted that the absence of a session may mean that there is no record of entity 1 calling session 1 related to the second service on the first network element, for example, the first network element is entity 1's session 1 calling the second service for the first time. A session may be a record of a session related to entity 1 calling the second service on the first network element. For example, the first network element calls the second service again for session 1 that entity 1 has called the second service.

S514: The first network element initiates a fourth request to the second network element 1, and the second network element 1 receives the fourth request from the first network element for requesting the second network element 1 to provide the second service.

S515: The second network element 1 returns the object 2 identifier and the object group 2 identifier to the first network element (ie, are allocated to the object group 2), and the first network element receives the object 2 identifier and the object group from the second network element 1 2 logo.

The object identifier is information that can uniquely identify the object. For example, when the object is a user, the object identifier may be one or more of a user identifier, a SUPI, and a session ID.

The object group identifier is information that can uniquely identify the object group. For example, when the object is a user, the object group identifier can be one or more of a user group identifier and a session set ID.

It should be noted that the second network element 1 allocates the fourth request to an object group, such as object group 2, for processing, and allocates an object identifier, such as an object 2 identifier.

S516: The first network element stores the identifier of the object 2 and the identifier of the object group 2, which correspond to the entity 1 and the related session 1 of the second service that needs to be invoked.

S517: The first network element receives the second request 2, where the second request 2 originates from the entity 1, and the requested invocation is the related session 1 of the second service.

S518: The first network element corresponds the entity 1 and the second service to the identifier of the object 2 and the identifier of the object group 2, and selects the second network element 1 according to the identifier of the object group 2.

Specifically, according to the second request 2, the first network element determines that the record of the relevant session 1 (for example, in S506) that the present entity 1 requests to invoke the second service, satisfies the condition of having a session, and determines to select according to the object group to which the object belongs, Further, according to the corresponding relationship between the object identifier and the object group identifier saved in S516 and the entity 1 invoking the second service-related session 1, it is determined that the object group to which the object belongs is the group 2, and the second network element 1 is selected to be invoked.

Through the above method, the first network element determines, according to the second condition, that the polling selection rule is used when there is no session, and the object group selection rule is used when there is a session, thereby realizing the unified management of the load of the second network element by the network storage network element. , to avoid the situation that the load of the second network element is uncontrollable due to the selection of the first network element according to its own unique algorithm.

Embodiment three:

As shown in FIG. 6 , it is a flowchart of a load management and control method provided by an embodiment of the present application. The method shown in FIG. 6 may exist independently, or may also be combined with the embodiments of FIG. 4 and FIG. 5, for example, performed after S411 or S515. When the first network element subscribes to the selection policy of the target second network element group, the network storage network element determines the second selection policy according to the information about the operation change of the second network element in the target second network element group, which specifically includes the following steps:

S601, the first network element sends a first request to the network storage network element, the network storage network element receives the first request from the first network element, and the first request is used to subscribe the second network element group 311 to the selection policy of the second network element .

Specifically, the selection policy for subscribing to the second network element in the second network element group 311 may be: when the operation of the second network element in the second network element group 311 changes, the first selection policy does not satisfy the changed second network element. In the case of the second network element in the tuple 311, if the number of the second network element in the selection range changes, the network storage network element provides a second selection strategy.

S602 , the network storage network element acquires the operation change information of the second network element in the second network element group 311 .

Specifically, the network storage network element may obtain its operation change information from the operation and maintenance system, the second network element that has changed in the second network element group, or other entities. For example, the network storage network element receives its operation change information sent by the changed second network element.

It should be noted that the operation change information may be information related to capacity expansion, for example, the second network element 3 goes online; it may be information related to capacity reduction or failure, such as causing the second network element 3 to go offline; it may be information related to upgrade, such as the second network element 3 The network element 3 is upgraded from version 1 to version 2; it can be information related to the reallocation of public resources, for example, the second network element 3 goes offline, so that the object group 5 and the object group 6 allocated by the second network element need to be reassigned to. The second network element 1 and the second network element 2.

S603: Optionally, the network stores the policy data 2 of the second network element group 311 obtained by the network element.

In an example, the operation and maintenance system or other entities know the operation change information of the second network element in the second network element group 311, know that the policy data 2 needs to be re-provided to the network storage network element, and the configuration interface, service-based interface (service-based interface, SBI) interface or API interface, sending policy data 2 to the network storage network element.

In an example, the policy data 1 is if network slice type=MBB, Round Robin in FIG. 4 , the operation change information is the upgrade of the second network element 3, and the operation and maintenance system or other entities know that the second network element 3 is upgraded from version 1 For version 2, it is known that policy data 2 needs to be provided to the network storage network element again, where policy data 2 can be: if version=1, weight is 96%; if version=2, weight is 4%.

It should be noted that, when the operation and maintenance system or other entities know the operation change information of the second network element in the second network element group 311 and determine that it is not necessary to re-provide the policy data 2 to the network storage network element, S603 is not executed.

S604, the network storage network element determines a second selection strategy according to the operation change information of the second network element in the second network element group 311.

Taking the policy data 2 in S603 as if version=1 and weight as 96%; if version=2 and weight as 4% as an example: the network storage network element can determine the second network element 3 according to the upgrade information of the second network element 3 The weight of the second network element 1 and the second network element 2 is determined to be 96%, and the second selection strategy is: weighted selection (96% second network element 1, second network element 2; 4 % second network element 3).

S605: The network storage network element sends the second selection policy to the first network element, and the first network element receives the second selection policy from the network storage network element.

S606: The first network element selects the second network element 1 according to the second selection policy.

Taking the second selection strategy as weighted selection (96% of the second network element 1, second network element 2; 4% of the second network element 3) as an example, the first network element may select the second network element 1 according to the weight.

Through the above method, when the operation of one or more second network elements in the target second network element group changes, the network storage network element can adjust the selection strategy in time according to the operation change, so as to realize fast and efficient control of the load of the second network element, Reduce management, operation and maintenance costs.

Embodiment 4:

As shown in FIG. 7 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the information of the operation change is the reallocation of public resources, for example, the second network element 3 in the second network element group 311 goes offline, so that the object group 5 and the object group 6 allocated by the second network element 3 need to be reallocated, the network The storage network element determines the second selection strategy according to the reallocation information of the public resources of the second network element in the target second network element group, which specifically includes the following steps:

S701: The same as S601, and details are not repeated.

S702: The second network element 3 sends a message 3 to the network storage network element, and the network storage network element accepts the message 3 of the second network element 3, and the message 3 is used for deregistration.

S703: According to the message 3, the network storage network element learns that the object group needs to be reassigned.

S704: The network storage network element reclaims the object group 5 and the object group 6 of the second network element 3, and reassigns them to the second network element 1 and/or the second network element 2.

In one example, the network storage network element assigns object group 5 to the second network element 1 and assigns object group 6 to the second network element 2 .

S705: The network storage network element determines a second selection strategy according to the object group reassignment. Among them, the second selection strategy includes newly allocated object groups 5 and 6 .

In one example, the second selection strategy includes selection according to object groups (groups 1, 2, 5 second network element 1; groups 3, 4, 6 second network element 2).

S706: The same as S605, and details are not repeated.

S707: The first network element selects the second network element 1 according to the second selection policy.

In an example, before the public resources are reallocated, the first network element selects the second network element 3, and the second network element 3 may return the object group 5 identifier to the first network element. After the public resources are reallocated, the first network element invokes the second service to the second network element 1 according to the second selection policy, and the second network element 1 may return the object group 5 identifier to the first network element.

In one example, the second selection policy includes a second condition (with session). Before the allocation, the first network element selects the second network element 3 for the entity 1, and the second network element 3 returns the object group 5 identifier to the first network element. After the public resources are reallocated, the first network element receives the second request 3 sent by the entity 1 and satisfies the second condition of "there is a session", so according to the entity 1 and the second request 3 corresponding to the object group 5, it is determined that the object group 5 corresponds to For the second network element 1, select to subsequently call the second network element 1 for the entity 1 to call the second service.

Through the above method, when the public resources of the second network element in the target second network element group are reallocated, the network storage network element can adjust the selection strategy in time according to the reallocation of the public resources, so as to realize fast and efficient load on the second network element. Control and reduce management, operation and maintenance costs.

Embodiment 5:

As shown in FIG. 8 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the information of the operation change is capacity expansion, such as the second network element 3 in the second network element group 311 goes online, the network storage network element determines the second selection strategy according to the information about the second network element 3 going online, which specifically includes the following steps:

S801: The same as S601, and details are not repeated.

S802: The second network element 3 sends a message 4 to the network storage network element, and the network storage network element accepts the message 4 of the second network element 3, and the message 4 is used for registration.

S803: The network storage network element determines a second selection strategy according to message 4. The second selection strategy includes the second network element 3 that is online.

In one example, the second selection strategy includes a round-robin selection (second network element 1, second network element 2, second network element 3).

S804: The same as S605, and details are not repeated.

S805: The first network element selects the second network element 1 according to the second selection policy.

Taking the second selection strategy as polling selection (second network element 1, second network element 2, second network element 3) as an example, the first network element can be selected in turn in order, for example, the second network element 1 is selected.

Through the above method, when the capacity of the second network element in the target second network element group is expanded, the network storage network element can adjust the selection strategy in time according to the expansion information of the second network element, so as to realize fast and efficient control of the load of the second network element, Reduce management, operation and maintenance costs.

Embodiment 6:

As shown in FIG. 9 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the information of the operation change is shrinkage or failure, for example, the second network element 3 in the second network element group 311 goes offline, the network storage network element determines the second selection strategy according to the offline information of the second network element 3, Specifically include the following steps:

S901: the same as S601, and will not be repeated.

S902: The second network element 3 sends a message 5 to the network storage network element, and the network storage network element accepts the message 5 of the second network element 3, and the message 5 is used to deregister or indicate a fault to go offline.

S903: The network storage network element determines a second selection strategy according to message 5.

In one example, the second selection strategy includes a round-robin selection (second network element 1, second network element 2).

S904: The same as S605, and details are not repeated.

S905: The first network element selects the second network element 1 according to the second selection policy.

Taking the second selection strategy as polling selection (second network element 1, second network element 2) as an example, the first network element may be selected in turn in order, for example, the second network element 1 is selected.

Through the above method, when the second network element in the target second network element group fails or shrinks, the network storage network element can adjust the selection strategy in time according to the information of the second network element failure or shrinkage, so as to realize the load on the second network element. Fast and efficient control reduces management, operation and maintenance costs.

Embodiment 7:

As shown in FIG. 10 , it is a flowchart of a load management and control method provided by an embodiment of the present application. When the operation change information is an upgrade, for example, the second network element 3 in the second network element group 311 is upgraded from version 1 to version 2, the network storage network element determines the second selection strategy according to the information about the upgrade of the second network element 3, Specifically include the following steps:

S1001: the same as S601, and will not be repeated.

S1002: The second network element 3 or the second service provided by the second network element 3 is upgraded from version 1 to version 2.

S1003: After the upgrade is completed, the second network element 3 sends a message 6 to the network storage network element, and the network storage network element receives the message 6 of the second network element 3, where the first message is used to indicate registration update or re-registration.

S1004: Optionally, the network stores the policy data 2 of the second network element group 211 obtained by the network element.

In one example, the operation and maintenance system or other entity provides policy data 2 to the network storage network element, and sends the policy to the network storage network element through a configuration interface, a service-based interface (SBI) interface or an API interface data 2.

In one example, policy data 2 may be: if version=1, the weight is 96%; if version=2, the weight is 4%.

S1005: The network storage network element determines a second selection strategy according to message 6.

In an example, the network storage network element determines that the upgraded version of the second network element 3 is 2 according to the message 6, and learns that the selection rule of the second network element in the second network element group 311 is weighted selection, and the first network element of version 1 is selected. The weight of the second network element is 96%, and the weight of the second network element of version 2 is 4%, which is used for version testing. Further, the network storage network element determines that the second selection strategy is weighted selection (96% of the second network element 1, the second network element Two network element 2; 4% second network element 3).

S1006: the same as S605, and will not be repeated.

S1007: The first network element selects the second network element 1 according to the second selection policy.

Taking the second selection strategy as weighted selection (96% of the second network element 1, second network element 2; 4% of the second network element 3) as an example, the first network element can be selected according to the weight, such as selecting the second network element 1.

S1008: Optionally, after the version 2 test is completed, the network storage network element may further deliver a policy of polling and selecting (second network element 1, second network element 2, and second network element 3) to the first network element.

For a detailed description, reference may be made to the steps shown in FIG. 6 , which will not be repeated here.

Through the above method, when the second network element is upgraded in the target second network element group, the network storage network element can adjust the selection strategy in time according to the information of the second network element upgrade, so as to realize fast and efficient control of the load of the second network element , reduce the cost of management, operation and maintenance.

The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that, in order to implement the above functions, the network storage network element, the first network element, and the second network element include: The corresponding hardware structures and/or software modules that perform each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not exceed the scope of this application.

In this embodiment of the present application, the network storage network element, the first network element, and the second network element may be divided into functional modules according to the foregoing method examples. For example, each function module may be divided corresponding to each function, or two or more The functions of the device are integrated in a processing module, and the above-mentioned integrated modules can be realized in the form of hardware or software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

For example, the above network elements or functions may be implemented by the communication device in FIG. 11 . As shown in FIG. 11 , the communication device 1100 may be a network storage network element, a first network element, and a second network element. The communication device 1100 includes: a processing unit 1101 , a communication unit 1102 , and optionally, a storage unit 1103 . The processing unit 1101 is connected to the communication unit 1102 , and the processing unit 1101 is connected to the storage unit 1103 . Further, the communication unit 1102 can be divided into a receiving unit and a transmitting unit, which respectively perform the functions of receiving information and transmitting information.

The processing unit 1101 is configured to control the actions of the foregoing network elements, for example, to support the foregoing network elements to perform the methods and steps provided by the embodiments of the present application. The communication unit 1102 is configured to support the communication between the above-mentioned network element and other network entities, for example, the communication between the network element and the network entity shown in the embodiment of the present application. The storage unit 1103 is used to store the data or program codes of the above network elements.

The processing unit 1101 may be a processor or a controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit (application-specific integrated circuit). circuit, ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Communication unit 1102 may be a transceiver. The storage unit 1103 may be a memory.

The communication device 1100 may be a network storage network element. Figure 11a shows a schematic structural diagram of a network storage network element 1110. The network storage network element includes a processing unit 1111 and a communication unit 1112, and optionally, a storage unit. 1113.

The communication unit 1112 is configured to receive the first request from the first network element. For details, refer to S301 in FIG. 3 .

Optionally, the processing unit 1111 is configured to acquire the policy data of the target second network element group, for details, refer to S302 in FIG. 3 .

The processing unit 1111 is configured to learn, according to the first request, that a selection policy needs to be provided, where the selection policy is used to select a target second network element in the target second network element group. For details, refer to S303 in FIG. 3 .

and is also used to determine the selection strategy according to the operation information of the second network element in the target second network element group, for details, please refer to S304 in FIG. 3 .

The communication unit 1112 is further configured to send the selection policy to the first network element. For details, refer to S305 in FIG. 3 .

Further, the network storage network element 1110 may also perform the corresponding steps in FIG. 4 , 5 , 6 , 7 , 8 , 9 or 10 , for details, please refer to the description in the above method embodiments.

The communication apparatus 1100 may also be a first network element (ie, a service consumer network element) in the embodiment of the present application. FIG. 11b shows a schematic structural diagram of a service consumer network element 1120. The service consumer network element includes: The processing unit 1121 and the communication unit 1122, optionally, may further include a storage unit 1123.

The processing unit 1121 is configured to know that the second service needs to be invoked. For details, refer to S404 in FIG. 4 .

The communication unit 1122 is configured to send the first request to the network storage network element. For details, refer to S405 in FIG. 4 .

The processing unit 1121 is further configured to acquire the target second network element group, for details, please refer to S406a-S407a in FIG. 4 .

Optionally, the communication unit 1122 is further configured to send a message 2 to the network storage network element, for querying the description information of the target second network element group, for details, refer to S408 in FIG. 4 .

The processing unit 1121 is further configured to acquire the selection policy from the network storage network element, and specifically, the selection policy received by the communication unit 1122 may be acquired, and for details, reference may be made to S305 in FIG. 3 .

The processing unit 1121 is further configured to determine the target second network element according to the selection strategy. For details, refer to S306 in FIG. 3 .

Further, the service consumer network element 1120 may also perform the corresponding steps in FIG. 4 , 5 , 6 , 7 , 8 , 9 or 10 , for details, please refer to the description in the above method embodiments.

When the above-mentioned processing units 1101, 1111, and 1121, communication units 1102, 1112, and 1122 are processors and transceivers, respectively, and storage units 1103, 1113, and 1123 are memories, the network storage network elements involved in the embodiments of the present application, the first The network element and the second network element may be the structures shown in FIG. 12 .

Referring to FIG. 12 , the communication device 1200 includes: a processor 1201 , a transceiver 1202 , and optionally, a memory 1203 and a bus 1204 . The processor 1201, the transceiver 1202 and the memory 1203 are connected through a bus 1204; the bus 1204 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus Wait. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 12, but it does not mean that there is only one bus or one type of bus.

An embodiment of the present application also provides a chip system, including at least one processor and an interface circuit, and the processor and the interface circuit are connected.

A processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor 1301 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods and steps disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The interface circuit can complete the sending or receiving of data, instructions or information. The processor can use the data, instructions or other information received by the interface circuit to process, and can send the processing completion information through the interface circuit.

Optionally, the chip system further includes a memory, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor. A portion of the memory may also include non-volatile random access memory (NVRAM).

Optionally, the memory stores executable software modules or data structures, and the processor may execute corresponding operations by calling operation instructions stored in the memory (the operation instructions may be stored in the operating system).

Optionally, the chip system may be used in the network storage network element, the first network element, and the second network element. Optionally, the interface circuit 1302 is configured to perform the steps of receiving and sending the network storage network element, the first network element, and the second network element in the embodiments shown in FIG. 3 to FIG. 10 . The processor 1301 is configured to execute the steps of processing the network storage network element, the first network element, and the second network element in the embodiments shown in FIG. 3 to FIG. 10 . The memory 1303 is used to store data and instructions of the network storage network element, the first network element, and the second network element in the embodiments shown in FIG. 3 to FIG. 10 .

For example, when the system-on-a-chip is used in a network storage network element, the first request from the first network element may be received through the interface circuit 1302. For details, reference may be made to S301 in FIG. 3 . The processor 1301 is configured to learn, according to the first request, that a selection policy needs to be provided, where the selection policy is used to select a target second network element in the target second network element group, and for details, refer to S303 in FIG. 3 . The processor 1301 is further configured to determine a selection strategy according to the operation information of the second network element in the target second network element group, for details, please refer to S304 in FIG. 3 . It is also used to send the selection policy to the first network element, for details, please refer to S305 in FIG. 3 .

Embodiments of the present application also provide a computer-readable storage medium. The methods described in the foregoing method embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media can include both computer storage media and communication media and also include any medium that can transfer a computer program from one place to another. A storage medium can be any available medium that can be accessed by a computer.

As an alternative design, the computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to carry or carry instructions or data structures The required program code is stored in the form and can be accessed by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies (such as infrared, radio, and microwave) to transmit software from a website, server, or other remote source, coaxial cable, fiber optic cable , twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc as used herein includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

The embodiments of the present application also provide a computer program product. The methods described in the foregoing method embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the above-mentioned computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the above-mentioned method embodiments are generated. The aforementioned computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.

The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included within the protection scope of the present invention.

Claims (30)

1. A load control method, characterized in that, comprising: The network storage network element receives the first request from the first network element; The network storage network element learns, according to the first request, that a selection policy of the target second network element group needs to be provided, and the selection policy is used to select the target second network element in the target second network element group; The network storage network element determines the selection strategy according to the operation information of one or more second network elements in the target second network element group; The network storage network element sends the selection policy to the first network element. 2 . The method according to claim 1 , wherein the method further comprises: acquiring, by the network storage network element, policy data, the policy data comprising one or more first conditions and a combination of the first conditions and the first conditions. 3 . The corresponding selection rules, Then, the network storage network element determines the selection strategy according to the operation information of one or more second network elements in the target second network element group, including: The network storage network element determines a target first condition in the policy data and a target selection rule corresponding to the target first condition; The network storage network element determines, according to the operation information of one or more second network elements in the target second network element group, a second network element that satisfies the target first condition; The network storage network element determines the selection policy as: selecting from the second network elements that satisfy the first condition of the target according to the target selection rule. 3. The method according to claim 2, wherein the network storage network element determines the target first condition in the policy data and the target selection rule corresponding to the target first condition comprising: the network storage network element The element determines the target first condition and corresponds to the target first condition according to the operation information of one or more second network elements in the target second network element group and/or the first request and the policy data target selection rules. 4. The method according to any one of claims 1-3, wherein the network storage network element determines, according to the operation information of one or more second network elements in the target second network element group, the The selection strategies described include: The network storage network element acquires the operation information of one or more second network elements in the target second network element group, where the operation information includes information of the operation state; The network storage network element determines a first selection strategy according to information on the operation status of one or more second network elements in the target second network element group. 5. The method of claim 4, wherein the method further comprises: The network storage network element obtains a list of public resource groups; The network storage network element allocates the common resource group to a second network element in the target second network element group; Determining, by the network storage network element, the first selection strategy according to the information on the operation status of one or more second network elements in the target second network element group includes: the network storage network element according to the target second network element. The first selection policy is determined by the information of the operation status of one or more second network elements in the group, and the information of the operation status includes the allocated public network elements corresponding to the second network elements in the target second network element group. A resource group, wherein the first selection strategy includes the allocated public resource group corresponding to the second network element in the target second network element group. 6 . The method according to claim 4 , wherein the first request includes a second service type, which is used to request to invoke a second service, and the network storage network element learns the need according to the first request. 7 . The selection strategy for providing the target second network element group includes: obtaining, by the network storage network element, a list of second network element groups corresponding to the second service type according to the first request, where the list of second network element groups includes a target second network element group; The network storage network element learns that the first selection policy corresponding to the target second network element group needs to be provided. 7. The method according to any one of claims 1-3, wherein the network storage network element determines, according to the operation information of one or more second network elements in the target second network element group, the The selection strategies described include: The network storage network element acquires operation information of one or more second network elements in the target second network element group, where the operation information includes operation change information; The network storage network element determines a second selection strategy according to information about the operation change of one or more second network elements in the target second network element group. 8. The method according to claim 7, wherein the first request includes an identifier of the target second network element group, and is used to subscribe to the selection policy of the target second network element group, and the network stores the network element According to the first request, learning the selection strategy for the target second network element group that needs to be provided includes: The network storage network element learns, according to the identifier of the target second network element group, that a second selection policy corresponding to the target second network element group needs to be provided. 9. The method of claim 7, wherein if the operational change includes a reallocation of a common resource group, the method further comprises: The network storage network element reallocates the common resource group to a second network element in the target second network element group; Then, the network storage network element determines the second selection strategy according to the operation change information of one or more second network elements in the target second network element group, including: The network storage network element determines a second selection strategy according to the newly allocated public resource group corresponding to the second network element in the target second network element group, where the second selection strategy includes the target second network element The newly allocated public resource group corresponding to the second network element in the group. 10. A load management and control method, comprising: The first network element learns that the second service needs to be invoked; The first network element learns the target second network element group, and the second network element in the target second network element group can provide the second service; The first network element obtains the selection policy of the target second network element group from the network storage network element, the selection policy is used to select the target second network element in the target second network element group, and the selection policy is based on The operation information of one or more second network elements in the target second network element group is determined; The first network element determines the target second network element according to the selection policy. 11. The method according to claim 10, wherein the operation information includes information of operation status, the selection strategy is a first selection strategy, and the first selection strategy is based on the target second network It is determined by the information on the running status of one or more second network elements in the tuple. 12. The method according to claim 11, wherein the method further comprises: the first network element sending a first request to the network storage network element, the first request comprising the second service type, Used to request to invoke the second service. 13. The method of claim 10, wherein the operation information includes operation change information, the selection strategy is a second selection strategy, and the second selection strategy is based on the target second network It is determined by the information of the operation change of one or more second network elements in the tuple. 14. The method of claim 13, further comprising: the first network element sending a first request to the network storage network element, the first request including the target second The identifier of the network element group, which is used to subscribe to the selection policy of the target second network element group. 15. The method according to any one of claims 10-14, wherein the selection strategy comprises a target selection rule, and a second network element, wherein the operation information of the second network element satisfies the target Select the target first condition corresponding to the rule; Then, determining the target second network element by the first network element according to the selection policy includes: the first network element selecting the target second network element from the second network elements that satisfy the target first condition according to the target selection rule. The target second network element. 16. A network storage network element, comprising: a processing unit and a communication unit; wherein, the communication unit is configured to receive a first request from a first network element; The processing unit is configured to learn, according to the first request, a selection strategy for providing a target second network element group, where the selection strategy is used to select a target second network element in the target second network element group; and for determining the selection strategy according to the operation information of one or more second network elements in the target second network element group; The communication unit is further configured to send the selection policy to the first network element. 17. The network storage network element according to claim 16, wherein, The processing unit is further configured to acquire policy data, where the policy data includes one or more first conditions and selection rules corresponding to the first conditions, Then, the processing unit is configured to determine the selection strategy according to the operation information of one or more second network elements in the target second network element group, including: The processing unit is configured to determine a target first condition in the policy data and a target selection rule corresponding to the target first condition; and determining, according to the operation information of one or more second network elements in the target second network element group, a second network element that satisfies the target first condition; and determining the selection strategy as: selecting from the second network elements that satisfy the first condition of the target according to the target selection rule. 18. The network storage network element according to claim 17, wherein the processing unit is configured to determine the target first condition in the policy data and the target selection rule corresponding to the target first condition comprising: The processing unit is configured to determine the target first condition and the relationship with the target first condition according to the operation information of one or more second network elements in the target second network element group and/or the first request and the policy data The target selection rule corresponding to the first condition of the target. 19. The network storage network element according to any one of claims 16-18, wherein the processing unit is configured to perform operation information according to one or more second network elements in the target second network element group , determining that the selection strategy includes: The processing unit is configured to acquire operation information of one or more second network elements in the target second network element group, where the operation information includes operation state information; and determining a first selection strategy according to information on the running status of one or more second network elements in the target second network element group. 20. The network storage network element according to claim 19, wherein, The processing unit is further configured to obtain a list of public resource groups; and allocating the common resource group to a second network element in the target second network element group; Then, the processing unit is configured to determine the first selection strategy according to the information on the operation status of one or more second network elements in the target second network element group, comprising: the processing unit is configured to, according to the target second network element information on the running status of one or more second network elements in the tuple, where the information on the running status includes the allocated public resource group corresponding to the second network element in the target second network element group, Determine the first selection strategy, where the first selection strategy includes the allocated public resource group corresponding to the second network element in the target second network element group. 21 . The network storage network element according to claim 19 , wherein the first request includes a second service type, which is used to request to invoke a second service, and the processing unit is configured to request a second service according to the first request. 22 . , it is known that the selection strategy for the target second network element group includes: The processing unit is configured to obtain, according to the first request, a list of second network element groups corresponding to the second service type, where the list of second network element groups includes a target second network element group; and learning that the first selection policy corresponding to the target second network element group needs to be provided. 22. The network storage network element according to any one of claims 16-18, wherein the processing unit is configured to perform operation information according to one or more second network elements in the target second network element group , determining that the selection strategy includes: The processing unit is configured to acquire operation information of one or more second network elements in the target second network element group, where the operation information includes operation change information; and determining a second selection strategy according to information about the operation change of one or more second network elements in the target second network element group. 23. The network storage network element according to claim 22, wherein the first request includes an identifier of the target second network element group, and is used to subscribe to the selection policy of the target second network element group, then the processing The unit is configured to obtain, according to the first request, the selection strategy for the target second network element group that needs to be provided, including: The processing unit is configured to know, according to the identifier of the target second network element group, that the second selection policy corresponding to the target second network element group needs to be provided. 24. The network storage network element according to claim 22, wherein if the operational change includes reallocation of a common resource group, the processing unit is further configured to reallocate the common resource group to the target the second network element in the second network element group; Then, the processing unit is configured to determine the second selection strategy according to the operation change information of one or more second network elements in the target second network element group, including: The processing unit is configured to determine a second selection strategy according to the newly allocated public resource group corresponding to the second network element in the target second network element group, where the second selection strategy includes the second network element group The newly allocated public resource group corresponding to the second network element in the 25. A service consumer network element, comprising: a processing unit and a communication unit; wherein, The processing unit is used to know that the second service needs to be called; and the received target second network element group, where the second network element in the target second network element group can provide the second service; and receiving a selection policy from a network storage network element through the communication unit, the selection policy is used to select a target second network element in the target second network element group, and the selection policy is based on the target second network element The operation information of one or more second network elements of the second network element in the network element group is determined; and determining the target second network element according to the selection strategy. 26. The service consumer network element according to claim 25, wherein the operation information includes information of operation status, the selection strategy is a first selection strategy, and the first selection strategy is based on the It is determined by the information on the running status of one or more second network elements in the target second network element group. 27. The service consumer network element according to claim 26, wherein the communication unit is configured to send a first request to the network storage network element, wherein the first request includes a second service type for Request to call the second service. 28. The service consumer network element according to claim 25, wherein the operation information includes operation change information, the selection strategy is a second selection strategy, and the second selection strategy is based on the It is determined by the information of the operation change of one or more second network elements in the target second network element group. 29. The service consumer network element according to claim 28, wherein the communication unit is configured to send a first request to the network storage network element, and the first request includes the target second network element The identifier of the group, used for subscribing to the selection policy of the target second network element group. 30. The service consumer network element according to any one of claims 25-29, wherein the selection strategy comprises a target selection rule, and a second network element whose operation information satisfies the target Select the target first condition corresponding to the rule; Then, the processing unit being configured to determine the target second network element according to the selection strategy includes: the processing unit being configured to select the target second network element from the second network elements that satisfy the target first condition according to the target selection rule. The target second network element.

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