CN113783882B

CN113783882B - Information acquisition method and device for edge application, electronic equipment and medium

Info

Publication number: CN113783882B
Application number: CN202111087061.2A
Authority: CN
Inventors: 刘道林; 邹学强; 傅强; 袁林; 邸学锋; 马洪彬; 窦晶; 贾立军; 米胜山; 范晓波; 张赫男; 姜双双; 阿曼太; 梁彧; 蔡琳; 杨满智; 王杰; 田野; 金红; 陈晓光
Original assignee: Eversec Beijing Technology Co Ltd
Current assignee: Eversec Beijing Technology Co Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2023-07-07
Anticipated expiration: 2041-09-16
Also published as: CN113783882A

Abstract

The embodiment of the invention discloses an information acquisition method and device for edge application, electronic equipment and a medium. Wherein the method comprises the following steps: receiving a 5G capability subscription interface call request sent by an AF network element, and sending the call request to a central NEF network element for the central NEF network element to determine whether to allow the AF network element to call a subscription interface to an edge NEF network element; if receiving the call permission information sent by the central NEF network element, acquiring core network information from the central NEF network element according to a preset core network information subscription request, and sending the core network information to the AF network element for the AF network element to adjust the edge application according to the core network information; according to a preset wireless side information subscription request, wireless side information is acquired from an OAM module, and the wireless side information is sent to an AF network element for the AF network element to adjust edge application according to the wireless side information. And the information acquisition of the edge application is carried out through the edge NEF, so that the information acquisition efficiency of the edge application is improved.

Description

Information acquisition method and device for edge application, electronic equipment and medium

Technical Field

The embodiment of the invention relates to a communication technology, in particular to an information acquisition method, an information acquisition device, electronic equipment and a medium for edge application.

Background

MEC (Multi-Access Edge Computing ) system is a key technology for supporting operators to perform 5G network transformation, and can meet the development demands of high-definition video, industrial Internet, internet of vehicles and other services. The combination of MEC and 5G involves network elements such as NEF (Network Exposure Function, network open function), PCF (Policy Control Function ), SMF (Session Management Function, session management function), and UPF (User Plane Function ).

The AF (Application Function ) in the MEC provides 5G network capability for edge applications. In the prior art, the capability opening function of the 5G core network is realized by a central NEF network element deployed on the central side, and when the edge application realizes the capability opening acquisition through an interface between the AF and the central NEF network element, all the information on the wireless side and the core network side is uniformly transmitted through the central NEF network element. Namely, the NEF network element deployed in the center acquires information, and the central NEF network element sends the information to the AF, so that the AF provides 5G network capability for the edge application. The information acquisition path is longer, the delay is larger, the 5G low-delay scene can not be well met, and the information acquisition efficiency of the edge application is lower.

Disclosure of Invention

The embodiment of the invention provides an information acquisition method, an information acquisition device, electronic equipment and a medium for edge application, so as to improve the information acquisition efficiency of the edge application.

In a first aspect, an embodiment of the present invention provides a method for acquiring information of an edge application, where the method is performed by a network element with a network open function, NEF, deployed on an edge side, and the method includes:

receiving a 5G capability subscription interface call request sent by an application function AF network element, and sending the 5G capability subscription interface call request to a central NEF network element for the central NEF network element to determine whether to allow the AF network element to call a subscription interface to an edge NEF network element;

if receiving the call permission information sent by the central NEF network element, acquiring core network information from the central NEF network element according to a preset core network information subscription request, and sending the core network information to the AF network element for the AF network element to adjust edge application according to the core network information;

according to a preset wireless side information subscription request, acquiring wireless side information from an operation maintenance management (OAM) module, and sending the wireless side information to the AF network element for the AF network element to adjust edge application according to the wireless side information.

In a second aspect, an embodiment of the present invention further provides an information acquisition apparatus for an edge application, where the apparatus is configured on a network element with an open function of a network deployed on an edge side, and the apparatus includes:

a call request receiving module, configured to receive a call request of a 5G capability subscription interface sent by an application function AF network element, send the call request of the 5G capability subscription interface to a central NEF network element, and allow the central NEF network element to determine whether to allow the AF network element to call a subscription interface to an edge NEF network element;

the core network information acquisition module is used for acquiring core network information from the central NEF network element according to a preset core network information subscription request if receiving the call permission information sent by the central NEF network element, and sending the core network information to the AF network element for the AF network element to adjust edge application according to the core network information;

the wireless side information acquisition module is used for acquiring wireless side information from the operation maintenance management (OAM) module according to a preset wireless side information subscription request, and sending the wireless side information to the AF network element for the AF network element to adjust edge application according to the wireless side information.

In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the method for obtaining information of an edge application according to any embodiment of the present invention when the processor executes the program.

In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform an information acquisition method for an edge application according to any of the embodiments of the present invention.

In the embodiment of the invention, the edge NEF network element is deployed at the edge side, and an AF network element in the MEC system sends an interface calling request to the edge NEF network element, and the edge NEF network element sends the request to the central NEF network element. The central NEF network element determines whether the AF network element is allowed to make an interface call. If yes, the central NEF network element sends the information of the core network side to the edge NEF network element. And the edge NEF network element can also acquire the wireless side information of the OAM module, and the edge NEF network element sends the acquired core network side information and the acquired wireless side information to the AF. The problem that information of all the edge applications corresponding to AF is sent by a central NEF network element in the prior art is solved, the pressure of the central NEF network element is reduced, the marginalization of a 5G network capability opening function is realized, the delay of information transmission is reduced, a 5G low-delay scene is met, the edge applications can rapidly acquire wireless side information and core network side information in real time, and the information acquisition efficiency of the edge applications is improved.

Drawings

Fig. 1 is a flow chart of an information acquisition method of an edge application in a first embodiment of the present invention;

fig. 2 is a flow chart of an information acquisition method of an edge application in a second embodiment of the present invention;

fig. 3 is a topology diagram of an edge NEF network in a second embodiment of the present invention;

fig. 4 is a block diagram of an information acquisition apparatus for an edge application in the third embodiment of the present invention;

fig. 5 is a schematic structural diagram of an information acquisition apparatus for an edge application in the fourth embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

Example 1

Fig. 1 is a flowchart of an information acquisition method for an edge application according to an embodiment of the present invention, where the embodiment is applicable to a case where the edge application acquires information in a 5G network, the method may be performed by an information acquisition device for an edge application, where the device is configured on a NEF network element deployed on an edge side. As shown in fig. 1, the method specifically includes the following steps:

Step 110, receiving a 5G capability subscription interface call request sent by an application function AF network element, and sending the 5G capability subscription interface call request to a central NEF network element, so that the central NEF network element determines whether to allow the AF network element to call a subscription interface to an edge NEF network element.

The AF is an Application of a server, and corresponds to an APP (Application program) in the MEC system, where the MEC system may include a plurality of APPs, and each APP may correspond to one AF network element, that is, the APP may obtain information of an edge Application from the corresponding AF network element. The edge NEF network element is a NEF network element deployed on the edge side, through which the 5G capability opening function can be sunk to the edge, and an AF network element in the MEC system invokes a capability opening interface provided by the edge NEF network element to subscribe to the 5G capability. The AF network element in this embodiment is an edge AF network element, which is deployed in the MEC system. Each edge AF network element may be communicatively connected to an edge NEF network element, which may be communicatively connected to a central NEF network element, which is deployed in the 5G core network and may interface with at least one edge NEF network element. The edge NEF network element can be deployed at a position close to the edge UPF, can be combined with the edge UPF, and can be deployed separately from the edge UPF. The edge NEF network elements are all network elements belonging to operators as the center NEF network elements, and do not belong to third parties, and the edge AF network elements can belong to third parties.

The edge NEF network element provides capability opening for the edge AF network element in the MEC system, wherein the capability opening is to provide a 5G capability subscription interface for the edge NEF network element to the outside, and the capability opening can be called by the edge AF network element. The edge AF calls a 5G capability subscription interface provided by the edge NEF, a 5G capability subscription interface call request is sent to the edge NEF network element, and the edge NEF network element can receive the 5G capability subscription interface call request sent by the edge AF network element. An internal interface exists between the edge NEF network element and the central NEF network element, a 5G capability subscription interface call request can be sent to the central NEF network element, and the central NEF network element determines whether to allow the edge AF network element to call the 5G capability subscription interface of the edge NEF network element. The edge NEF network element may request the central NEF network element to determine whether to allow the edge AF network element to be provided with edge capability openness. The central NEF network element may play the role of a manager, and the central NEF network element may manage a plurality of edge NEF network elements. If the central NEF network element allows the edge AF network element to subscribe to the 5G capability through the edge NEF network element, the central NEF network element may reply with a response message of the allowed type to the edge NEF network element.

In this embodiment, optionally, the receiving the 5G capability subscription interface call request sent by the application function AF network element sends the 5G capability subscription interface call request to the central NEF network element, so that the central NEF network element determines whether to allow the AF network element to call the subscription interface to the edge NEF network element, including: responding to a 5G capability subscription interface call request sent by an AF network element, and determining the identification of the AF network element; and sending the identifier to the central NEF network element, and determining whether the AF network element is allowed to call the subscription interface to the edge NEF network element or not by the central NEF network element according to the identifier and a preset identifier list.

Specifically, the edge NEF network element responds to a 5G capability subscription interface call request sent by the edge AF network element, where the 5G capability subscription interface call request may include identification information of the edge AF network element, for example, the identification information may be an ID of the edge AF network element. The edge NEF network element may send a 5G capability subscription interface call request to the central NEF network element, where the central NEF network element obtains an edge AF network element identifier in the 5G capability subscription interface call request. And the edge NEF network element can also acquire the edge AF network element identifier in the 5G capability subscription interface call request, and the edge AF network element identifier is sent to the central NEF network element. After the edge NEF network element receives the request of the capability subscription, the edge NEF network element does not have the right to decide whether to allow the request of the edge AF network element or not by itself, the request or the identification of the edge AF network element needs to be sent to the center NEF network element, the center NEF network element manages a plurality of edge NEF network elements and decides whether the request of each edge AF network element is allowed or not, thereby meeting the framework of cloud edge coordination, realizing the cloud edge coordination with open capability and achieving the functions of managing at the center and business at the edge.

The central NEF network element is preset with an identification list, for example, the central NEF network element may preset a white list and/or a black list in advance according to an operator policy. The central NEF network element may compare the identifier of the edge AF network element with the identifier in the preset identifier list, and determine whether the identifier of the edge AF network element is in the identifier list. For example, if the identifier of the edge AF network element is in the white list, the edge AF network element is allowed to call a subscription interface to the edge NEF network element; if the identification of the edge AF network element is in the blacklist, the edge AF network element is not allowed to call the subscription interface to the edge NEF network element. The method has the beneficial effects that the 5G network capability opening function is sunk to the edge by using the edge NEF network element, so that the localization and the marginalization of the capability opening are realized. The central NEF network element judges whether to allow the AF network element to call the subscription interface to the edge NEF network element according to the identification of the edge AF network element, so that the management of the edge NEF network element by the central NEF network element is realized, each edge AF network element has a unique identification, the call permission error of the edge AF can be avoided, the edge application can acquire the permitted information through the edge AF network element, the information leakage is avoided, and the information acquisition precision and the safety of the edge application are improved.

Step 120, if receiving the call permission information sent by the central NEF network element, acquiring core network information from the central NEF network element according to a preset core network information subscription request, and sending the core network information to the AF network element, so that the AF network element adjusts the edge application according to the core network information.

The central NEF network element may determine whether to allow the edge AF network element to subscribe to the 5G capability through the edge NEF network element, and if so, the central NEF network element may reply a response message of an allowed type to the edge NEF network element. That is, the central NEF network element may send information allowing invocation to the edge NEF network element. The edge NEF network element receives the information allowing the call and replies the information allowing the call to the edge AF network element, and the edge AF network element can acquire the information of the core network side in the center NEF network element through the edge NEF network element.

The central NEF network element replies a response message of an allowed type to the edge NEF network element, and simultaneously the central NEF network element can record the core network side capability subscribed by the edge AF network element, and is only responsible for the related information content of the core network side capability. After the central NEF network element determines that the core network information can be allowed to be sent to the edge AF, the core network information can be acquired from a core network element preset in the 5G core network, so that the core network information can be conveniently sent to the edge NEF network element subsequently. Network elements in the core network may include SMF, PCF, UPF, and the like.

The information to be subscribed to by the edge AF network element has two capability types, one is the capability of the 5G core network side, for example, the capability may include session policy in the PCF network element and QoS (Quality of Service ) data reported to the SMF by the UPF network element. Another is the capability of the 5G radio side, which may include, for example, air quality and signal-to-noise ratio between the base station and the terminal. For the capability of the core network type, the central NEF network element is responsible for opening the outside, and for the capability of the wireless side, the base station side is opened to the outside. Therefore, the central NEF network element only stores the capability of the core network side to be subscribed, so that the core network information is sent to the edge AF network element through the edge NEF network element.

The edge AF network element may send, after determining that the 5G capability subscription interface is allowed to be invoked, a core network information subscription request to the central NEF network element through the edge NEF network element. The request of the 5G capability subscription interface and the core network information subscription request can be sent to the edge NEF network element, and the edge NEF network element sends the request of the 5G capability subscription interface and the core network information subscription request to the center NEF network element to acquire the core network information of the center NEF network element. The information name and the like to be acquired by the edge AF network element can be preset in the core network information subscription request. The central NEF network element can collect core network information to be acquired by the edge AF network element according to the core network information subscription request, and the edge NEF network element can acquire the core network information from the central NEF network element and send the core network information to the edge AF network element. The edge AF network element receives the core network information and can adjust the corresponding edge application according to the core network information.

In this embodiment, optionally, according to a preset subscription request for core network information, obtaining core network information from a central NEF network element includes: sending a core network information subscription request to a central NEF network element; receiving information of successful response of a subscription request fed back by a central NEF network element, acquiring core network information from a preset core network element by the central NEF network element, and transmitting the core network information to an edge NEF network element according to preset core network information transmitting conditions; and receiving the core network information sent by the central NEF network element.

Specifically, the edge NEF network element receives the core network information subscription request sent by the edge AF network element, sends the core network information subscription request to the center NEF network element, and the center NEF network element can feed back the information that the subscription request is successfully responded to the edge NEF network element, and can send the requested core network information to the edge NEF network element. After receiving the information of successful response of the subscription request fed back by the central NEF network element, the edge NEF network element can receive the core network information sent by the central NEF network element. The core network information subscription request may be preset with a core network information sending condition, for example, a time period condition and/or an event condition. The central NEF network element may send core network information to the edge NEF network element according to a preset core network information sending condition, for example, send core network information once every preset time period, or send core network information once every preset event occurs. The preset event may be sending trigger information when an event of a path change of the user plane occurs. For example, the central NEF network element has an interaction flow with the SMF network element, and when the user plane path changes, for example, an intermediate UPF network element is inserted, the SMF network element sends the event to the central NEF network element, and the central NEF network element sends the event as core network information to the edge NEF network element. And the edge NEF network element receives the core network information of the event sent by the center NEF network element and sends the core network information to the edge AF network element. The beneficial effect of this setting lies in that the edge NEF can obtain core network information regularly or in real time to send to edge AF network element, need not center NEF network element and edge AF to carry out information transmission, lighten the pressure of center NEF network element, center NEF network element only be responsible for collecting information and managing edge NEF network element can. The problem of traditional NEF network element transmission information of deployment in the center is solved, low-delay scene in 5G application or the perpendicular trade is satisfied, and the edge application is as AF direct with the interaction of edge NEF, acquires core network side ability in real time, makes quick response and adjustment, reaches the closed loop effect, satisfies the demand of low delay, promotes user experience.

And 130, acquiring wireless side information from an operation maintenance management (OAM) module according to a preset wireless side information subscription request, and sending the wireless side information to an AF (active area network) element for the AF element to adjust edge application according to the wireless side information.

After receiving the information allowing the call, the edge AF network element may send a radio side information subscription request to the edge NEF network element, where the edge NEF network element receives the radio side information subscription request, and sends the radio side information subscription request to an OAM module in the 5G base station. The OAM module at the base station side replies a response-allowed message to the edge NEF network element, and the edge NEF network element replies a response-allowed message to the edge AF network element. It should be noted that, the OAM module at the base station side unconditionally replies a response message of the permission type to the edge NEF network element, because the capability openness decision right is in the central NEF network element. The wireless side information subscription request can be preset with wireless side information names and the like to be acquired by the edge AF network element, and the OAM module can acquire wireless side information required by the edge AF network element from the 5G base station according to the wireless side information subscription request and send the wireless side information to the edge NEF network element, and the edge NEF network element sends the wireless side information to the edge AF network element. The edge AF network element receives the wireless side information and adjusts edge application. The OAM module at the base station side contains measurement reports such as standard PM (Performance Management ), FM (Fault Management), MDT (Minimization of Drive Tests ) and TRACE (signaling TRACE), which can embody real-time information and history record at the wireless side, and the base station side can provide these information to the edge NEF network element.

In this embodiment, optionally, according to a preset wireless side information subscription request, acquiring wireless side information from the operation, maintenance and management OAM module includes: transmitting a wireless side information subscription request to an OAM module; receiving information of successful response of the subscription request fed back by the OAM module, counting wireless side information by the OAM module, and sending the wireless side information to an edge NEF network element according to preset wireless side information sending conditions; and receiving the wireless side information sent by the OAM module.

Specifically, the edge NEF network element sends the received subscription request of the wireless side information to the OAM module, and the OAM module unconditionally replies an allowed type response to the edge NEF network element, that is, the OAM module feeds back to the edge NEF network element the information that the subscription request was successfully responded. And the edge NEF network element receives the information of successful response of the subscription request fed back by the OAM module, acquires wireless side information from the OAM module and sends the wireless side information to the edge AF module. The OAM module counts wireless side information of the base station, and sends the wireless side information to the edge NEF network element according to preset wireless side information sending conditions. The radio side information transmission condition may be a time period condition or an event condition. For example, the radio side information transmission condition may be that RSRP (Reference Signal Receiving Power, reference signal received power) is reported once in a one-minute period, and the OAM module at the base station side transmits RSRP entries in the local PM report to the edge NEF network element every one minute. The OAM module does not need to send the wireless side information to the central NEF network element, and only needs to send the wireless side information to the edge NEF network element, and the edge NEF network element sends the wireless side information to the edge AF network element. The working pressure of the central NEF network element is reduced, the edge NEF network element can correspond to the edge AF network element, information transmission errors can be avoided through the edge NEF network element transmission, and the information acquisition efficiency and accuracy of edge application are improved.

In this embodiment, the order in which the edge NEF network element acquires the radio side information and acquires the core network information is not limited. And as long as the central NEF network element allows the AF network element to call the subscription interface to the edge NEF network element, the wireless side information and the core network information can be acquired simultaneously or respectively.

The edge NEF network element is used for sinking the 5G network capability opening function to the edge, so that the localization and marginalization of capability opening are realized, the edge application directly interacts with the edge NEF, wireless side information and core network side information can be rapidly acquired in real time, rapid response and adjustment are made, the closed-loop effect is achieved, and the low-delay requirement is met. Instead of acquiring information through a traditional NEF network element deployed in the center, the information acquisition efficiency of the edge application is improved, low-delay scenes in 5G application or vertical industry are met, and user experience is improved.

According to the technical scheme of the embodiment, the edge NEF network element is deployed at the edge side, an AF network element in the MEC system sends an interface calling request to the edge NEF network element, and the edge NEF sends the request to the central NEF network element. It is determined by the central NEF network element whether the AF is allowed to make an interface call. If yes, the center NEF sends the information of the core network side to the edge NEF network element. And the edge NEF network element can also acquire the wireless side information of the OAM module, and the edge NEF network element sends the acquired core network side information and the acquired wireless side information to the AF. The problem that information of all the edge applications corresponding to AF is sent by a central NEF network element in the prior art is solved, the pressure of the central NEF network element is reduced, the marginalization of a 5G network capability opening function is realized, the delay of information transmission is reduced, a 5G low-delay scene is met, the edge applications can rapidly acquire wireless side information and core network side information in real time, and the information acquisition efficiency of the edge applications is improved.

Example two

Fig. 2 is a flowchart of an information acquisition method for an edge application according to a second embodiment of the present invention, which is further optimized based on the foregoing embodiment, and the method may be executed by an information acquisition device for an edge application. As shown in fig. 2, the method specifically includes the following steps:

step 210, receiving a 5G capability subscription interface call request sent by an application function AF network element, and sending the 5G capability subscription interface call request to a central NEF network element, so that the central NEF network element determines whether to allow the AF network element to call a subscription interface to an edge NEF network element.

Step 220, receiving call result information of a 5G capability subscription interface fed back by a central NEF network element; if the result information is refused calling information, the refused calling information is sent to the AF network element for the user to check the AF network element.

After the edge NEF network element sends the call request of the 5G capability subscription interface of the edge AF network element to the center NEF network element, the edge NEF network element may receive call result information of the 5G capability subscription interface fed back by the center NEF network element. The call result information of the 5G capability subscription interface can be the response result information of the permission call or the response result information of the refusal call.

And if the result information is response result information allowing the call, the edge NEF network element sends the information allowing the call to the edge AF network element. The central NEF network element may obtain the core network information and send the core network information to the edge NEF according to the core network information subscription request. And the edge AF network element can send a wireless side information subscription request to the OAM module through the edge NEF network element to acquire wireless side information.

And if the result information is the call refusal information, the edge NEF network element sends the call refusal information to the edge AF network element. For example, if the identity of the edge AF network element is in the blacklist of the central NEF network element, the edge AF network element cannot invoke the 5G capability subscription interface of the edge NEF network element. The fact that the edge AF network element cannot call the 5G capability subscription interface of the edge NEF network element means that the edge AF network element cannot acquire core network information or wireless side information. The edge AF network element can display refused call on the edge application for the operator to check and adjust.

Fig. 3 is an edge NEF network topology according to an embodiment of the present invention. The edge AF network element 302 sends a 5G capability subscription interface call request to the edge NEF network element 301, and the edge NEF network element 301 sends the 5G capability subscription interface call request to the central NEF network element 303. If the central NEF network element 303 sends information allowing the call to the edge NEF network element 301, the edge NEF network element 301 sends the information allowing the call to the edge AF network element 302. The edge AF network element 302 sends a core network information subscription request to the central NEF network element 303 through the edge NEF network element 301, and the edge AF network element 302 sends a radio side information subscription request to the OAM module 304 through the edge NEF network element 301. The central NEF network element 303 sends core network information to the edge NEF network element 301 according to preset core network information sending conditions, the oam module 304 sends radio side information to the edge NEF network element 301 according to preset radio side information sending conditions, and the edge NEF network element 301 sends core network information and radio side information to the edge AF network element 302 to complete information acquisition of edge applications. If the central NEF network element 303 sends the information of refusing to call to the edge NEF network element 301, the edge NEF network element 301 sends the information of refusing to call to the edge AF network element 302, and the edge application cannot acquire the core network information and the wireless side information.

In the embodiment of the invention, the edge NEF network element is deployed at the edge side, the AF network element in the MEC system sends an interface calling request to the edge NEF network element, the edge NEF sends the request to the center NEF network element, and the center NEF network element determines whether the edge AF is allowed to carry out interface calling or not. The edge AF network element acquires wireless side information and core network information from the edge NEF network element, and the edge NEF is uniformly managed by the central NEF network element, so that the edge AF network element cannot acquire information of edge application when the central NEF network element does not allow the edge NEF network element to open a 5G capability subscription interface to the edge AF network element. The problem that in the prior art, all the information of the edge application corresponding to the AF is sent by the central NEF network element is solved, the central NEF network element manages the edge NEF network element, and cloud edge coordination with open capability is realized. The pressure of the central NEF network element is relieved, the marginalization of the 5G network capability opening function is realized, the delay of information transmission is reduced, the low-delay scene of 5G is met, the edge application can rapidly acquire wireless side information and core network side information, and the information acquisition efficiency and the accuracy of the edge application are improved.

Example III

Fig. 4 is a block diagram of an information acquisition device for an edge application according to a third embodiment of the present invention, where the information acquisition device for an edge application according to any embodiment of the present invention may be implemented, and the device is configured in a network element with an open network function, which is deployed on an edge side, and has a functional module and beneficial effects corresponding to the implementation method. As shown in fig. 4, the apparatus specifically includes:

A call request receiving module 401, configured to receive a 5G capability subscription interface call request sent by an application function AF network element, send the 5G capability subscription interface call request to a central NEF network element, so that the central NEF network element determines whether to allow the AF network element to call a subscription interface to an edge NEF network element;

a core network information obtaining module 402, configured to obtain core network information from the central NEF network element according to a preset core network information subscription request if receiving information allowing for call sent by the central NEF network element, and send the core network information to the AF network element, so that the AF network element adjusts edge application according to the core network information;

the wireless side information obtaining module 403 is configured to obtain wireless side information from an operation, maintenance and management OAM module according to a preset wireless side information subscription request, and send the wireless side information to the AF network element, so that the AF network element adjusts edge application according to the wireless side information.

Optionally, the call request receiving module 401 includes:

an identification determining unit, configured to determine an identification of the AF network element in response to a 5G capability subscription interface call request sent by the AF network element;

And the identifier sending unit is used for sending the identifier to the central NEF network element so that the central NEF network element can determine whether the AF network element is allowed to call a subscription interface to the edge NEF network element according to the identifier and a preset identifier list.

Optionally, the AF network element is deployed in a multi-access edge computing MEC system, and the OAM module is deployed in a 5G base station; the central NEF network element is deployed in the 5G core network and interfaces with at least one edge NEF network element.

Optionally, the apparatus further comprises:

the calling result receiving module is used for receiving calling result information of the 5G capability subscription interface fed back by the central NEF network element;

and the call result sending module is used for sending the call refusing information to the AF network element if the result information is the call refusing information, so that the AF network element is checked by a user.

Optionally, the core network information acquisition module 402 is specifically configured to:

sending a core network information subscription request to the central NEF network element;

receiving information of successful response of a subscription request fed back by the central NEF network element, acquiring core network information from a preset core network element by the central NEF network element, and transmitting the core network information to the edge NEF network element according to preset core network information transmitting conditions;

And receiving the core network information sent by the central NEF network element.

Optionally, the wireless side information obtaining module 403 is specifically configured to:

transmitting a wireless side information subscription request to the OAM module;

receiving information of successful response of the subscription request fed back by the OAM module, counting wireless side information by the OAM module, and sending the wireless side information to the edge NEF network element according to preset wireless side information sending conditions;

and receiving the wireless side information sent by the OAM module.

In the embodiment of the invention, the edge NEF network element is deployed at the edge side, and the AF network element in the MEC system sends an interface calling request to the edge NEF network element, and the edge NEF sends the request to the center NEF network element. It is determined by the central NEF network element whether the AF is allowed to make an interface call. If yes, the center NEF sends the information of the core network side to the edge NEF network element. And the edge NEF network element can also acquire the wireless side information of the OAM module, and the edge NEF network element sends the acquired core network side information and the acquired wireless side information to the AF. The problem that information of all the edge applications corresponding to AF is sent by a central NEF network element in the prior art is solved, the pressure of the central NEF network element is reduced, the marginalization of a 5G network capability opening function is realized, the delay of information transmission is reduced, a 5G low-delay scene is met, the edge applications can rapidly acquire wireless side information and core network side information in real time, and the information acquisition efficiency of the edge applications is improved.

Example IV

Fig. 5 is a schematic structural diagram of an information acquisition device for edge application according to a fourth embodiment of the present invention. An information acquisition device for an edge application is an electronic device and fig. 5 shows a block diagram of an exemplary electronic device 500 suitable for use in implementing embodiments of the present invention. The electronic device 500 shown in fig. 5 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.

As shown in fig. 5, the electronic device 500 is embodied in the form of a general purpose computing device. The components of electronic device 500 may include, but are not limited to: one or more processors or processing units 501, a system memory 502, and a bus 503 that connects the various system components (including the system memory 502 and processing units 501).

Bus 503 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, micro channel architecture (MAC) bus, enhanced ISA bus, video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

Electronic device 500 typically includes many types of computer system readable media. Such media can be any available media that is accessible by electronic device 500 and includes both volatile and nonvolatile media, removable and non-removable media.

The system memory 502 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 504 and/or cache memory 505. Electronic device 500 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 506 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard disk drive"). Although not shown in fig. 5, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In such cases, each drive may be coupled to bus 503 through one or more data medium interfaces. Memory 502 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of embodiments of the invention.

A program/utility 508 having a set (at least one) of program modules 507 may be stored, for example, in memory 502, such program modules 507 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 507 typically perform the functions and/or methods of the described embodiments of the invention.

The electronic device 500 may also communicate with one or more external devices 509 (e.g., keyboard, pointing device, display 510, etc.), one or more devices that enable a user to interact with the electronic device 500, and/or any device (e.g., network card, modem, etc.) that enables the electronic device 500 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 511. Also, electronic device 500 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 512. As shown in fig. 5, the network adapter 512 communicates with other modules of the electronic device 500 over the bus 503. It should be appreciated that although not shown in fig. 5, other hardware and/or software modules may be used in connection with electronic device 500, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

The processing unit 501 executes various functional applications and data processing by running a program stored in the system memory 502, for example, implements an information acquisition method for an edge application provided by an embodiment of the present invention, including:

Example five

The fifth embodiment of the present invention further provides a storage medium containing computer executable instructions, where a computer program is stored, where the program when executed by a processor implements an information acquisition method for an edge application according to the embodiment of the present invention, including:

The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. An information acquisition method of an edge application, wherein the method is performed by a network open function, NEF, network element deployed on an edge side, the method comprising:

receiving a 5G capability subscription interface call request sent by an application function AF network element, sending the 5G capability subscription interface call request to a central NEF network element, and determining whether to allow the AF network element to call a subscription interface to an edge NEF network element or not according to the identification of the AF network element and a preset identification list by the central NEF network element; wherein, the central NEF network element has a decision right of 5G capability opening;

acquiring wireless side information from an operation maintenance management (OAM) module according to a preset wireless side information subscription request, and sending the wireless side information to the AF network element for the AF network element to adjust edge application according to the wireless side information; the edge NEF network element sends the received wireless side information subscription request to the operation maintenance management OAM module; the operation maintenance management OAM module unconditionally replies a response message of an allowed type to the edge NEF network element;

wherein, the obtaining core network information from the central NEF network element according to the preset core network information subscription request includes:

receiving information of successful response of a subscription request fed back by the central NEF network element, acquiring core network information from a preset core network element by the central NEF network element, and transmitting the core network information to the edge NEF network element according to preset core network information transmitting conditions; the preset core network information sending conditions comprise event conditions of user plane path change;

2. The method according to claim 1, wherein the AF network element is deployed in a multi-access edge computing MEC system, and the OAM module is deployed in a 5G base station; the central NEF network element is deployed in the 5G core network and interfaces with at least one edge NEF network element.

3. The method of claim 1, further comprising, after sending the 5G capability subscription interface call request to a central NEF network element:

receiving call result information of a 5G capability subscription interface fed back by the central NEF network element;

and if the result information is refused calling information, the refused calling information is sent to the AF network element for the user to check the AF network element.

4. The method according to claim 1, wherein obtaining the wireless side information from the operation, maintenance and administration OAM module according to the preset wireless side information subscription request includes:

And receiving the wireless side information sent by the OAM module.

5. An information acquisition device for an edge application, wherein the device is configured on a network open function NEF network element deployed on an edge side, the device comprising:

a call request receiving module, configured to receive a call request of a 5G capability subscription interface sent by an application function AF network element, send the call request of the 5G capability subscription interface to a central NEF network element, and determine whether to allow the AF network element to call a subscription interface to an edge NEF network element according to an identifier of the AF network element and a preset identifier list; wherein, the central NEF network element has a decision right of 5G capability opening;

the wireless side information acquisition module is used for acquiring wireless side information from the operation maintenance management (OAM) module according to a preset wireless side information subscription request, and sending the wireless side information to the AF network element for the AF network element to adjust edge application according to the wireless side information; the edge NEF network element sends the received wireless side information subscription request to the operation maintenance management OAM module; the operation maintenance management OAM module unconditionally replies a response message of an allowed type to the edge NEF network element;

The core network information acquisition module is specifically configured to:

6. The apparatus of claim 5, wherein the AF network element is deployed in a multi-access edge computing MEC system and the OAM module is deployed in a 5G base station; the central NEF network element is deployed in the 5G core network and interfaces with at least one edge NEF network element.

7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the information acquisition method of an edge application according to any one of claims 1-4 when executing the program.

8. A storage medium containing computer executable instructions which, when executed by a computer processor, are for performing the information acquisition method of an edge application as claimed in any one of claims 1-4.