CN113783882A - Information acquisition method and device for edge application, electronic equipment and medium - Google Patents
Information acquisition method and device for edge application, electronic equipment and medium Download PDFInfo
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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 calling request sent by an AF network element, and sending the calling 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 the information which is sent by the central NEF network element and allowed to be called is received, the core network information is acquired from the central NEF network element according to a preset core network information subscription request, and the core network information is sent to the AF network element so that the AF network element can adjust the edge application according to the core network information; and according to a preset wireless side information subscription request, acquiring wireless side information from the OAM module, and sending the wireless side information to the AF network element for the AF network element to adjust the 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
Technical Field
The present invention relates to communications technologies, and in particular, to an information obtaining method and apparatus for edge application, an electronic device, and a medium.
Background
An MEC (Multi-Access Edge Computing) system is a key technology supporting an operator to perform 5G network transformation, and can meet the development requirements of services such as high-definition video, industrial internet, car networking and the like. The combination of MEC and 5G relates to Network elements such as NEF (Network Exposure Function), PCF (Policy Control Function), SMF (Session Management Function), and UPF (User Plane Function).
The AF (Application Function) in the MEC provides 5G network capabilities for edge applications. In the prior art, the capability opening function of the 5G core network is implemented by a central NEF network element deployed at the central side, and when the edge application implements the acquisition of the opening capability through the interface between the AF and the central NEF network element, information of all the wireless sides and the core network side is uniformly transmitted through the central NEF network element. Namely, the information is acquired by the NEF network element deployed in the center, and then the information is sent to the AF by the center NEF network element, so that the AF provides 5G network capability for the edge application. The path for acquiring the information is long, the delay is large, the low-delay scene of 5G cannot be well met, and the information acquisition efficiency of edge application is low.
Disclosure of Invention
The embodiment of the invention provides an information acquisition method and device for an edge application, an electronic device and a medium, which are used for improving the information acquisition efficiency of the edge application.
In a first aspect, an embodiment of the present invention provides an information obtaining method for an edge application, where the method is performed by a network open function NEF network element deployed on an edge side, and the method includes:
receiving a 5G capability subscription interface calling request sent by an Application Function (AF) network element, and sending the 5G capability subscription interface calling 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 the information which is sent by the central NEF network element and allowed to be called is received, core network information is obtained from the central NEF network element according to a preset core network information subscription request, and the core network information is sent to the AF network element so that the AF network element can adjust edge application according to the core network information;
and according to a preset wireless side information subscription request, acquiring wireless side information from an operation, maintenance and management (OAM) module, and sending the wireless side information to the AF network element for the AF network element to adjust the edge application according to the wireless side information.
In a second aspect, an embodiment of the present invention further provides an information obtaining apparatus for an edge application, where the apparatus is configured on a network element of a network open function NEF deployed on an edge side, and the apparatus includes:
a call request receiving module, 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, configured to, if receiving information that is sent by the central NEF network element and allows for invocation, obtain core network information from the central NEF network element according to a preset core network information subscription request, 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;
and the wireless side information acquisition module is used for acquiring wireless side information from an operation, maintenance and 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 the 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 executable on the processor, where the processor executes the computer program to implement the information obtaining method for an edge application according to any embodiment of the present invention.
In a fourth aspect, the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the information acquisition method of an edge application according to any embodiment of the present invention.
In the embodiment of the invention, the edge NEF network element is deployed on the edge side, the 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. And the central NEF network element determines whether to allow the AF network element to carry out interface calling. And if so, 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 may also obtain the wireless side information of the OAM module, and the edge NEF network element sends the obtained core network side information and the wireless side information to the AF. The problem that in the prior art, the information of the edge application corresponding to all the AF is sent by the central NEF network element is solved, the pressure of the central NEF network element is reduced, the marginalization of the 5G network capacity opening function is realized, the time delay of information transmission is reduced, the low-delay scene of 5G is met, the edge application can rapidly acquire the wireless side information and the core network side information in real time, and the information acquisition efficiency of the edge application is improved.
Drawings
Fig. 1 is a schematic flowchart of an information obtaining method for an edge application according to a first embodiment of the present invention;
fig. 2 is a schematic flowchart of an information obtaining method for an edge application according to a second embodiment of the present invention;
fig. 3 is a network topology diagram of an edge NEF according to a second embodiment of the present invention;
fig. 4 is a block diagram of an information acquisition apparatus for an edge application according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an information acquiring apparatus for an edge application in the fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart illustrating an information obtaining 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 obtains information in a 5G network, and the method can be executed by an information obtaining apparatus for the edge application, where the apparatus is configured on a NEF network element deployed on an edge side. As shown in fig. 1, the method specifically includes the following steps:
The AF is an Application of a server, and corresponds to an APP (Application program) in the MEC system, the MEC system may include multiple APPs, and each APP may correspond to an AF network element, that is, the APP may obtain information of the edge Application from the corresponding AF network element. The edge NEF network element is an NEF network element deployed on the edge side, the 5G capability opening function can be sunk to the edge through the edge NEF network element, and the AF network element in the MEC system calls 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, and the edge AF network element is deployed in the MEC system. Each edge AF network element may be communicatively connected to one edge NEF network element, the edge NEF network element may be communicatively connected to a central NEF network element, and the central NEF network element is deployed in the 5G core network and may interface with at least one edge NEF network element. The edge NEF network element may be deployed near the edge UPF, may be co-located with the edge UPF, or may be deployed separately from the edge UPF. The edge NEF network elements are all network elements belonging to the operator, which are not third parties, like the central NEF network element, and the edge AF network elements may belong to third parties.
The edge NEF network element provides capability openness for an edge AF network element in the MEC system, wherein the capability openness means that a 5G capability subscription interface is provided for the edge NEF network element to the outside and can be called by the edge AF network element. The edge AF invokes a 5G capability subscription interface provided by the edge NEF, sends a 5G capability subscription interface invocation request to the edge NEF network element, and the edge NEF network element may receive the 5G capability subscription interface invocation request sent by the edge AF network element. An internal interface exists between the edge NEF network element and the central NEF network element, and the 5G capability subscription interface invocation request may be sent to the central NEF network element, and the central NEF network element determines whether to allow the edge AF network element to invoke 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 provide the edge capability openness. The central NEF network element may function as an administrator, 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 to the edge NEF network element with a response message of the allowed type.
In this embodiment, optionally, 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, where the method includes: responding to a 5G capability subscription interface calling request sent by an AF network element, and determining the identifier of the AF network element; and sending the identifier 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 according to the identifier and a preset identifier list.
Specifically, the edge NEF network element responds to the 5G capability subscription interface invocation request sent by the edge AF network element, and the 5G capability subscription interface invocation 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 the 5G capability subscription interface invocation request to the central NEF network element, and the central NEF network element obtains the edge AF network element identifier in the 5G capability subscription interface invocation request. Or the edge AF network element identifier in the 5G capability subscription interface invocation request may be acquired by the edge NEF network element, and the edge AF network element identifier is sent to the central NEF network element. After receiving the capability subscription request, the edge NEF network element has no right to determine whether to allow the request of the edge AF network element, and needs to send the request or the identifier of the edge AF network element to the center NEF network element, and the center NEF network element manages a plurality of edge NEF network elements and determines whether the request of each edge AF network element is allowed, thereby satisfying the framework of cloud edge cooperation, realizing cloud edge cooperation with open capability, and achieving the function of managing at the center and services 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 an identifier in a 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 the subscription interface to the edge NEF network element; and if the identifier 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 beneficial effect of the configuration is that the 5G network capability opening function is sunk to the edge by using the edge NEF network element, thereby realizing localization and marginalization of the capability opening. The central NEF network element judges whether the AF network element is allowed to call the subscription interface to the edge NEF network element or not according to the identification of the edge AF network element, so that the central NEF network element manages the edge NEF network element, each edge AF network element has a unique identification, the calling allowance error of the edge AF can be avoided, the edge application can acquire allowed 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.
And step 120, if the information which is sent by the central NEF network element and allowed to be called is received, obtaining the 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.
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 to a response message of an allowable 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 of the call permission and replies the information of the call permission to the edge AF network element, and the edge AF network element can acquire the information of the core network side in the central NEF network element through the edge NEF network element.
The central NEF network element replies a response message of the allowed type to the edge NEF network element, and meanwhile, the central NEF network element may record the core network side capability subscribed by the edge AF network element, and the central NEF network element is only responsible for the relevant information content of the core network side capability. After determining that the core network information is allowed to be sent to the edge AF, the central NEF network element may obtain the core network information from a core network element preset in the 5G core network, so as to facilitate subsequent sending to the edge NEF network element. The network elements in the core network may include SMF, PCF, UPF, and the like.
The information to be subscribed by the edge AF network element has two capability types, one is the capability of the 5G core network side, and may include, for example, a session policy in the PCF network element and QoS (Quality of Service) data reported to the SMF by the UPF network element. The other is the capability of the 5G wireless side, which may include, for example, the quality of an air interface between the base station and the terminal, the signal-to-noise ratio, and the like. For the capability of the core network type, the central NEF network element is responsible for opening the network, and for the capability of the wireless side, the base station side opens the network. Therefore, the central NEF network element only stores the core network side capability that needs subscription, and thus sends the core network information to the edge AF network element through the edge NEF network element.
The edge AF network element may send a core network information subscription request to the central NEF network element through the edge NEF network element after determining that the 5G capability subscription interface is allowed to be invoked. Or the request of the 5G capability subscription interface and the core network information subscription request may be sent to the edge NEF network element together, and the edge NEF network element sends the request of the 5G capability subscription interface and the core network information subscription request to the central NEF network element together, so as to obtain the core network information of the central NEF network element. The core network information subscription request may be preset with an information name and the like to be acquired by the edge AF network element. The central NEF network element may 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 may 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, acquiring the core network information from the central NEF network element according to a preset core network information subscription request includes: sending a core network information subscription request to a central NEF network element; receiving information of successful response of the 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 sending the core network information to the edge NEF network element according to a preset core network information sending condition; and receiving the core network information sent by the central NEF network element.
Specifically, the edge NEF network element receives a core network information subscription request sent by the edge AF network element, and sends the core network information subscription request to the center NEF network element, and the center NEF network element may feed back, to the edge NEF network element, information that the subscription request is successfully responded to, and may send the requested core network information to the edge NEF network element. The edge NEF network element may receive the core network information sent by the central NEF network element after receiving the information of successful response to the subscription request fed back 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 the core network information to the edge NEF network element according to a preset core network information sending condition, for example, the core network information is sent once every preset time period, or the core network information is sent once every preset event occurs. The preset event may be that the sending of the information is triggered when the event of the user plane path change occurs. For example, the central NEF network element has an interactive flow with the SMF network element, and when the user plane path changes, for example, a middle 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 to the edge NEF network element as core network information. And the edge NEF network element receives the core network information of the event sent by the central NEF network element and sends the core network information to the edge AF network element. The method has the advantages that the edge NEF can acquire the core network information periodically or in real time and send the core network information to the edge AF network element, the central NEF network element and the edge AF do not need to transmit information, the pressure of the central NEF network element is reduced, and the central NEF network element is only responsible for collecting information and managing the edge NEF network element. The problem of traditional NEF network element transmission information that deploys at the center is solved, low-delay scenes in 5G application or vertical industry are met, edge application directly interacts with edge NEF as AF, core network side capacity is obtained in real time, quick response and adjustment are made, the closed-loop effect is achieved, the low-delay requirement is met, and user experience is improved.
After receiving the information allowing call, the edge AF network element may send a wireless side information subscription request to the edge NEF network element, and after receiving the wireless side information subscription request, the edge NEF network element sends the wireless side information subscription request to the OAM module in the 5G base station. And the OAM module at the base station side replies a message of allowing response to the edge NEF network element, and the edge NEF network element replies a message of allowing response 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 allowed type to the edge NEF element because the decision of capability opening is in the central NEF element. The wireless side information subscription request may be preset with a wireless side information name and the like to be acquired by the edge AF network element, and the OAM module may acquire the 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, which sends the wireless side information to the edge AF network element. And the edge AF network element receives the wireless side information and adjusts the 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 tracking), which can reflect real-time information and history of the wireless side, and the base station side can provide these information to the edge NEF network element.
In this embodiment, optionally, obtaining the wireless side information from the operation, maintenance and management OAM module according to a preset wireless side information subscription request includes: sending 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 the edge NEF network element according to a preset wireless side information sending condition; and receiving the wireless side information sent by the OAM module.
Specifically, the edge NEF network element sends the received wireless side information subscription request to the OAM module, and the OAM module unconditionally replies a response of an allowable type to the edge NEF network element, that is, the OAM module feeds back information that the subscription request is successfully responded to the edge NEF network element. And the edge NEF network element acquires the wireless side information from the OAM module after receiving the information of successful response of the subscription request fed back by the OAM module, and sends the information to the edge AF module. And the OAM module counts the wireless side information of the base station and sends the wireless side information to the edge NEF network element according to the preset wireless side information sending condition. The wireless side information transmission condition may be a time period condition or an event condition. For example, if the wireless side information sending condition may be that RSRP is reported once every one minute period (Reference Signal Receiving Power), the OAM module at the base station side sends RSRP entries in the local PM report to the edge NEF network element every one minute. The beneficial effect of the setting is that 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 transmission of the edge NEF network element, and the information acquisition efficiency and accuracy of the edge application are improved.
In this embodiment, the order of the edge NEF network element acquiring the wireless side information and the core network information is not limited. 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 capacity opening function to the edge, so that the localization and the marginalization of the capacity opening are realized, the edge application is directly interacted with the edge NEF, the wireless side information and the core network side information can be rapidly acquired in real time, the rapid response and the adjustment are made, the closed loop effect is achieved, and the requirement of low delay is met. The information is acquired through the traditional NEF network element deployed in the center, so that the information acquisition efficiency of the edge application is improved, the low-delay scene in 5G application or vertical industry is met, and the user experience is improved.
In the technical scheme of this embodiment, an edge NEF network element is deployed on an edge side, an AF network element in the MEC system sends an interface call request to the edge NEF network element, and the edge NEF sends the request to a central NEF network element. The central NEF network element determines whether to allow the AF 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 may also obtain the wireless side information of the OAM module, and the edge NEF network element sends the obtained core network side information and the wireless side information to the AF. The problem that in the prior art, the information of the edge application corresponding to all the AF is sent by the central NEF network element is solved, the pressure of the central NEF network element is reduced, the marginalization of the 5G network capacity opening function is realized, the time delay of information transmission is reduced, the low-delay scene of 5G is met, the edge application can rapidly acquire the wireless side information and the core network side information in real time, and the information acquisition efficiency of the edge application is improved.
Example two
Fig. 2 is a flowchart illustrating an information obtaining method for an edge application according to a second embodiment of the present invention, where the present embodiment is further optimized based on the foregoing embodiment, and the method can be executed by an information obtaining apparatus for an edge application. As shown in fig. 2, the method specifically includes the following steps:
After sending the 5G capability subscription interface invocation request of the edge AF network element to the central NEF network element, the edge NEF network element may receive invocation result information of the 5G capability subscription interface fed back by the central NEF network element. The call result information of the 5G capability subscription interface may be response result information allowing the call or response result information rejecting the call.
And if the result information is response result information allowing the calling, the edge NEF network element sends the information allowing the calling 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 the wireless side information.
And if the result information is the information for refusing to call, the edge NEF network element sends the information for refusing to call to the edge AF network element. For example, if the identifier 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 invoke the 5G capability subscription interface of the edge NEF network element means that the edge AF network element cannot acquire neither core network information nor wireless side information. The edge AF network element may display the rejected calls on the edge application for the staff to view and adjust.
Fig. 3 is a network topology diagram of an edge NEF in an embodiment of the present invention. The edge AF network element 302 sends a 5G capability subscription interface invocation request to the edge NEF network element 301, and the edge NEF network element 301 sends the 5G capability subscription interface invocation request to the center NEF network element 303. If the central NEF network element 303 sends the information allowing invocation to the edge NEF network element 301, the edge NEF network element 301 sends the information allowing invocation to the edge AF network element 302. The edge AF network element 302 sends a core network information subscription request to the center 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 the core network information to the edge NEF network element 301 according to a preset core network information sending condition, the OAM module 304 sends the wireless side information to the edge NEF network element 301 according to a preset wireless side information sending condition, and the edge NEF network element 301 sends the core network information and the wireless side information to the edge AF network element 302, thereby completing information acquisition of the edge application. If the central NEF network element 303 sends the call rejection information to the edge NEF network element 301, the edge NEF network element 301 sends the call rejection information 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 on the edge side, the AF network element in the MEC system sends the 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. The edge AF network element acquires the radio side information and the 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 the information of the edge application when the central NEF network element does not allow the edge NEF network element to open the 5G capability subscription interface to the edge AF network element. The problem that in the prior art, information of edge applications corresponding to all AF is sent by a central NEF network element is solved, the central NEF network element manages the edge NEF network elements, and cloud-edge cooperation with open capability is achieved. The method has the advantages that the pressure of a central NEF network element is reduced, the marginalization of the 5G network capacity opening function is realized, the time delay of information transmission is reduced, the 5G low-delay scene is met, the marginal application can quickly acquire the wireless side information and the core network side information, and the information acquisition efficiency and accuracy of the marginal application are improved.
EXAMPLE III
Fig. 4 is a block diagram of an information obtaining apparatus for an edge application according to a third embodiment of the present invention, which is configured to a network open function NEF element deployed on an edge side and has functional modules and beneficial effects corresponding to the executing 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, if receiving information that allows calling and is sent by the central NEF network element, obtain core network information from the central NEF network element according to a preset core network information subscription request, 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;
a wireless side information obtaining module 403, 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 invocation request receiving module 401 includes:
an identifier determining unit, configured to determine an identifier 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 determines whether to allow the AF network element 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 a 5G core network and performs interface interaction with at least one edge NEF network element.
Optionally, the apparatus further comprises:
a calling result receiving module, configured to receive calling result information of the 5G capability subscription interface fed back by the central NEF network element;
and the calling result sending module is used for sending the calling refusal information to the AF network element if the result information is the calling refusal information, so that a user can check the AF network element.
Optionally, the core network information obtaining 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 the 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 sending the core network information to the edge NEF network element according to a preset core network information sending condition;
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:
sending 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 a preset wireless side information sending condition;
and receiving the wireless side information sent by the OAM module.
In the embodiment of the invention, the edge NEF network element is deployed on the edge side, 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 central NEF network element. The central NEF network element determines whether to allow the AF 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 may also obtain the wireless side information of the OAM module, and the edge NEF network element sends the obtained core network side information and the wireless side information to the AF. The problem that in the prior art, the information of the edge application corresponding to all the AF is sent by the central NEF network element is solved, the pressure of the central NEF network element is reduced, the marginalization of the 5G network capacity opening function is realized, the time delay of information transmission is reduced, the low-delay scene of 5G is met, the edge application can rapidly acquire the wireless side information and the core network side information in real time, and the information acquisition efficiency of the edge application is improved.
Example four
Fig. 5 is a schematic structural diagram of an information acquiring apparatus for an edge application according to a fourth embodiment of the present invention. The information acquisition device of the edge application is an electronic device and fig. 5 shows a block diagram of an exemplary electronic device 500 suitable for implementing an embodiment of the invention. The electronic device 500 shown in fig. 5 is only an example and should not bring any limitation to the functions and the scope of use of the 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 the 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 couples the various system components (including the system memory 502 and the processing unit 501).
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. The 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 and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 503 by one or more data media interfaces. Memory 502 may include at least one program product having a set (e.g., at least one) of program modules that are 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 instance, 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 of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 507 generally perform the functions and/or methodologies of embodiments of the invention as described herein.
The electronic device 500 may also communicate with one or more external devices 509 (e.g., keyboard, pointing device, display 510, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., network card, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 511. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 512. As shown in FIG. 5, the network adapter 512 communicates with the 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 conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processing unit 501 executes various functional applications and data processing by running a program stored in the system memory 502, for example, implementing an information acquisition method for an edge application provided by an embodiment of the present invention, including:
receiving a 5G capability subscription interface calling request sent by an Application Function (AF) network element, and sending the 5G capability subscription interface calling 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 the information which is sent by the central NEF network element and allowed to be called is received, core network information is obtained from the central NEF network element according to a preset core network information subscription request, and the core network information is sent to the AF network element so that the AF network element can adjust edge application according to the core network information;
and according to a preset wireless side information subscription request, acquiring wireless side information from an operation, maintenance and management (OAM) module, and sending the wireless side information to the AF network element for the AF network element to adjust the edge application according to the wireless side information.
EXAMPLE five
The fifth embodiment of the present invention further provides a storage medium containing computer-executable instructions, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the method for obtaining information of an edge application according to the fifth embodiment of the present invention is implemented, where the method includes:
receiving a 5G capability subscription interface calling request sent by an Application Function (AF) network element, and sending the 5G capability subscription interface calling 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 the information which is sent by the central NEF network element and allowed to be called is received, core network information is obtained from the central NEF network element according to a preset core network information subscription request, and the core network information is sent to the AF network element so that the AF network element can adjust edge application according to the core network information;
and according to a preset wireless side information subscription request, acquiring wireless side information from an operation, maintenance and management (OAM) module, and sending the wireless side information to the AF network element for the AF network element to adjust the edge application according to the wireless side information.
Computer storage media for embodiments of the invention may employ 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. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination 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 the context of 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.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. 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 for aspects 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 + + or the like 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 type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An information acquisition method for an edge application, the method being performed by a network open function (NEF) network element deployed on an edge side, the method comprising:
receiving a 5G capability subscription interface calling request sent by an Application Function (AF) network element, and sending the 5G capability subscription interface calling 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 the information which is sent by the central NEF network element and allowed to be called is received, core network information is obtained from the central NEF network element according to a preset core network information subscription request, and the core network information is sent to the AF network element so that the AF network element can adjust edge application according to the core network information;
and according to a preset wireless side information subscription request, acquiring wireless side information from an operation, maintenance and management (OAM) module, and sending the wireless side information to the AF network element for the AF network element to adjust the edge application according to the wireless side information.
2. The method of claim 1, wherein receiving a 5G capability subscription interface invocation request sent by an Application Function (AF) network element, and sending the 5G capability subscription interface invocation request to a central NEF network element, for the central NEF network element to determine whether to allow the AF network element to make a subscription interface invocation to an edge NEF network element, comprises:
responding to a 5G capability subscription interface calling request sent by the AF network element, and determining the identifier of the AF network element;
and sending the identifier to the 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 the edge NEF network element according to the identifier and a preset identifier list.
3. The method of 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 a 5G core network and performs interface interaction with at least one edge NEF network element.
4. The method of claim 1, wherein after sending the 5G capability subscription interface invocation request to a central NEF network element, further comprising:
receiving the calling result information of the 5G capability subscription interface fed back by the central NEF network element;
and if the result information is call rejection information, sending the call rejection information to the AF network element for a user to check the AF network element.
5. The method of claim 1, wherein obtaining core network information from the central NEF network element according to a preset core network information subscription request includes:
sending a core network information subscription request to the central NEF network element;
receiving information of successful response of the 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 sending the core network information to the edge NEF network element according to a preset core network information sending condition;
and receiving the core network information sent by the central NEF network element.
6. The method of claim 1, wherein obtaining the wireless side information from the operation, maintenance and management, OAM, module according to a preset wireless side information subscription request includes:
sending 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 a preset wireless side information sending condition;
and receiving the wireless side information sent by the OAM module.
7. An information acquisition apparatus for an edge application, wherein the apparatus is configured on a network open function (NEF) network element deployed on an edge side, and the apparatus comprises:
a call request receiving module, 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, configured to, if receiving information that is sent by the central NEF network element and allows for invocation, obtain core network information from the central NEF network element according to a preset core network information subscription request, 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;
and the wireless side information acquisition module is used for acquiring wireless side information from an operation, maintenance and 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 the edge application according to the wireless side information.
8. The apparatus of claim 7, wherein the call request receiving module comprises:
an identifier determining unit, configured to determine an identifier 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 determines whether to allow the AF network element to call a subscription interface to the edge NEF network element according to the identifier and a preset identifier list.
9. 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 the edge application according to any one of claims 1 to 6 when executing the program.
10. A storage medium containing computer-executable instructions for performing the information acquisition method of the edge application according to any one of claims 1 to 6 when executed by a computer processor.
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