CN115134838A

CN115134838A - UPF fault detection method and device based on 5G, electronic equipment and storage medium

Info

Publication number: CN115134838A
Application number: CN202210751422.7A
Authority: CN
Inventors: 马波; 吴闽华; 张凯威; 徐从元; 陈雷; 刘晟
Original assignee: Shenzhen Genew Technologies Co Ltd
Current assignee: Shenzhen Genew Technologies Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-30

Abstract

The invention discloses a UPF fault detection method and device based on 5G, an electronic device and a storage medium, wherein the method comprises the following steps: respectively detecting the interface states of a plurality of interfaces of the UPF to obtain a plurality of first detection results, wherein each first detection result represents the interface state of one of the interfaces of the UPF, respectively detecting the link states of the plurality of interfaces to obtain a second detection result of the link state of each interface, and each second detection result represents the link state of one of the interfaces of the UPF; detecting a functional module of the UPF to obtain a third detection result of the functional module, wherein the third detection result represents the working state of the functional module, the functional module comprises a DPDK module, and if the first detection result, the second detection result or the third detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault, and the fault detection result comprises a UPF fault or a UPF normal; and when receiving a node establishment request sent by the SMF, sending a feedback message corresponding to the fault detection result to the SMF.

Description

UPF fault detection method and device based on 5G, electronic equipment and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting a UPF fault based on 5G, an electronic device, and a storage medium.

Background

Today the 5 th generation mobile communication coefficient (5G) has gradually gone into people's lives and works. When a User uses a network to perform operations such as call or video watching, the User terminal accesses the network and needs to control a User Plane Function (UPF) through a Service Management Function (SMF) to establish a Service channel to carry a terminal Service.

When the current UPF receives the node establishment request of the SMF, it directly replies that the SMF node is successfully established, which may cause a situation that the terminal service may not normally operate subsequently, and then the scope of troubleshooting is very large, for example, it is necessary to troubleshoot whether problems occur in the respective apparatuses such as the SMF, the UPF, the base station, and the terminal, and whether a problem occurs in the link states between them, etc., which is time-consuming and wasteful of computing resources. Therefore, a method is needed to solve the above technical problems.

Disclosure of Invention

The embodiment of the invention provides a UPF fault detection method, a UPF fault detection device, electronic equipment and a storage medium based on 5G, which are used for realizing the detection of the UPF fault.

In a first aspect, an embodiment of the present invention provides a method for detecting a UPF fault based on 5G, including:

respectively detecting the interface states of a plurality of interfaces of the UPF to obtain a plurality of first detection results, wherein each first detection result represents the interface state of one of the interfaces of the UPF, and the first detection results comprise a normal state or an abnormal state;

respectively detecting the link states of the plurality of interfaces to obtain second detection results of the link state of each interface, wherein each second detection result represents the link state of one interface of the UPF; the link state refers to a link state between an interface and a router, and the second detection result includes a normal state or an abnormal state;

detecting the functional module of the UPF to obtain a third detection result of the functional module, wherein the third detection result represents the working state of the functional module of the UPF, the functional module comprises a DPDK module, and the third detection result comprises a normal state or an abnormal state;

if the first detection result, the second detection result or the third detection result is in an abnormal state, the fault detection result of the UPF is the UPF fault, and the fault detection result comprises the UPF fault or the UPF is normal;

and when a node establishment request sent by the SMF is received, sending a feedback message corresponding to the fault detection result to the SMF, wherein the feedback message comprises a response message of successful node establishment or a response message of failed node establishment.

In a second aspect, an embodiment of the present invention further provides a 5G-based UPF fault detection apparatus, including:

the interface state detection module is used for respectively detecting the interface states of a plurality of interfaces of the UPF to obtain a plurality of first detection results, wherein each first detection result represents the interface state of one interface of the UPF, and the first detection results comprise a normal state or an abnormal state;

a link state detection module, configured to detect link states of the multiple interfaces respectively to obtain second detection results of the link state of each interface, where each second detection result represents a link state of one of the interfaces of the UPF; the link state refers to a link state between an interface and a router, and the second detection result includes a normal state or an abnormal state;

the functional module detection module is used for detecting the functional module of the UPF to obtain a third detection result of the functional module, wherein the third detection result represents the working state of the functional module of the UPF, the functional module comprises a DPDK module, and the third detection result comprises a normal state or an abnormal state;

a fault detection result obtaining module, configured to determine that the fault detection result of the UPF is the UPF fault if the first detection result, the second detection result, or the third detection result is in an abnormal state, where the fault detection result includes the UPF fault or the UPF normal;

and the feedback message sending module is used for sending a feedback message corresponding to the fault detection result to the SMF when receiving a node establishment request sent by the SMF, wherein the feedback message comprises a response message of successful node establishment or a response message of failed node establishment, and the fault detection result comprises a UPF fault or a normal UPF.

In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors implement the method for detecting a UPF fault based on 5G according to any of the embodiments of the present invention.

In a fourth aspect, embodiments of the present invention further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for 5G-based UPF fault detection according to any one of the embodiments of the present invention.

According to the technical scheme of the embodiment of the invention, the interface states of the plurality of interfaces of the UPF are respectively detected to obtain a first detection result of the interface state of each interface, the link states of the plurality of interfaces are respectively detected to obtain a second detection result of the link state of each interface, and the functional module of the UPF is detected to obtain a third detection result. And if any one of the three types of detection results is in an abnormal state, the fault detection result of the UPF is the UPF fault. The technical scheme of the embodiment of the invention realizes the detection of whether the UPF has faults in multiple aspects by detecting the interface states of a plurality of interfaces of the UPF, the link state between each interface and the router and the functional module of the UPF, thereby improving the comprehensiveness of fault detection. And when any detection result of the interface state, the link state or the working state of the functional module is in an abnormal state, the fault detection result of the UPF is determined to be the UPF fault, and only when the three detection results are in a normal state, the fault detection result of the UPF is normal, so that the usability of the UPF is ensured. When the SMF sends a node establishment request, a feedback message corresponding to a fault detection result can be sent to the SMF, so that the SMF can know the fault condition of the UPF and further select whether to replace other UPFs except the current UPF for node establishment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of a 5G-based UPF system according to a first embodiment of the present invention;

fig. 2 is a schematic flowchart of a UPF fault detection method based on 5G according to a first embodiment of the present invention;

fig. 3 is a schematic diagram of message transmission between an SMF and a UPF according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of message transmission between an SMF and a UPF according to another embodiment of the present invention;

fig. 5 is a schematic flowchart of a UPF fault detection method based on 5G according to a second embodiment of the present invention;

fig. 6 is a schematic diagram of message transmission between an SMF and a UPF according to a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a 5G-based UPF fault detection apparatus according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of an electronic device in a fourth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Before the technical solution of the embodiment of the present invention is explained, an application scenario of the embodiment of the present invention is exemplarily explained:

an application layer in a 5G core network adopts a Packet Forwarding Control Protocol (PFCP), and PFCP request and response messages, including information of creation, update, deletion, and the like of nodes, are transmitted between a Service Management Function (SMF) and a User Plane Function (UPF). SMF and UPF are two network elements in a 5G core network. Referring to fig. 1, the N3 interface transmits data between the UPF and the base station, and the N6 interface transmits data between the UPF and the public network. In the embodiment of the present invention, when the UPF can receive the node establishment request, the N4 interface is defaulted to a normal state. As shown in fig. 3, the SMF creates a node by sending a node establishment request, and the UPF replies a node establishment response in response to the node establishment request, so that the node establishment between the SMF and the UPF is successful, and then, if a terminal is registered in the 5G core network, the 5G core network issues session establishment information of the terminal to the UPF. However, if the failure cause of the UPF itself, for example, the failure of the N3 and/or N6 interface, is not considered, the direct recovery node is successfully established, and the operations such as forwarding the data of the base station or the data of the public network may not be performed subsequently. Therefore, through the technical scheme of the embodiment of the invention, the fault of the UPF is detected, so that when the node creation request sent by the SMF is received, the corresponding response message can be fed back to the SMF based on the fault detection result of the UPF, so that the SMF judges whether other UPFs except the UPF need to be selected to send the node creation request based on the response message, and the effectiveness of the node creation is ensured. The method of the embodiment of the invention can improve the effectiveness of node creation.

Example one

Fig. 2 is a schematic flow diagram of a 5G-based UPF fault detection method provided in an embodiment of the present invention, where this embodiment is applicable to a case of detecting a fault of a UPF, and the method may be executed by a 5G-based UPF fault detection apparatus, and the apparatus may be implemented in a form of software and/or hardware.

As shown in fig. 2, the method for detecting a UPF fault based on 5G in the embodiment of the present invention specifically includes the following steps:

and S110, respectively detecting the interface states of the plurality of interfaces of the UPF to obtain a plurality of first detection results.

Each first detection result represents the interface state of one interface of the UPF, and the first detection result comprises a normal state or an abnormal state. The interfaces of the UPF include a plurality of interfaces, such as an N4 interface, an N3 interface and an N6 interface. In an embodiment of the present invention, the plurality of interfaces includes an N3 interface and an N6 interface. The N3 interface is used to transfer data between the base station and the UPF, and the N6 interface is used to transfer data between the public network and the UPF. When the first detection result is in a normal state, the interface can send/receive data, and conversely, when the first detection result is in an abnormal state, the interface cannot send or receive data.

Specifically, interface states of a plurality of interfaces of the UPF are detected respectively to obtain a plurality of first detection results, and optionally, interface states of the N3 interface and the N6 interface are detected respectively to obtain a first detection result of each interface. Whether the UPF can send or receive data can be judged according to the first detection result.

On the basis of the embodiment of the invention, aiming at a plurality of interfaces, a first detection result of the interface state of the interface is obtained by inquiring the LINK state of the interface, wherein the LINK state comprises an abnormal interface state or a normal interface state.

Specifically, a first detection result of the interface state of the interface can be obtained by searching the LINK state of each interface. It should be noted that the LINK status may be displayed as an interface status abnormal fault or an interface status normal, and the reason for the interface status abnormal may be that no network cable is plugged into the interface, or the contact between the network cable and the interface is unstable. And when the LINK state of a certain interface shows that the interface state is abnormal, the corresponding first detection result is in an abnormal state. Optionally, the LINK status is stored in a preset storage area, each interface has an interface identifier, the interface identifiers are used for distinguishing different interfaces, and the interface identifiers of the interfaces are stored in association with the LINK status. When the LINK state of the interface needs to be queried, the LINK state can be called from the preset storage area based on the interface identifier of the interface. Optionally, the LINK status is updated regularly, and when the preset update duration is reached, the LINK status is updated regularly, and the updated LINK status may be stored in the preset storage area. It should be appreciated that the state of the LINK may be updated in real-time.

And S120, detecting the link states of the plurality of interfaces respectively to obtain a second detection result of the link state of each interface.

Wherein each second detection result represents a link status of one of the interfaces of the UPF; the link state refers to a link state between the interface and the router, and the second detection result includes a normal state or an abnormal state.

Specifically, the link states of the plurality of interfaces are detected respectively, so that a second detection result of the link state of each interface is obtained. When the second detection result of the link state of a certain interface is an abnormal state, it indicates that the interface cannot transmit data at this time. Whether the N3 interface and the N6 interface can transmit data can be known by detecting the link state of the interfaces. In this embodiment of the present invention, when the second detection result of the link state of a certain interface is an abnormal state, it may be determined that the interface cannot perform data transmission.

And S130, detecting the functional module of the UPF to obtain a third detection result of the functional module.

The third detection result represents the working state of the functional module of the UPF, the functional module includes a DPDK module, and the third detection result includes a normal state or an abnormal state. The DPDK module is used to forward data of uplink and/or downlink of the terminal. The fast processing Data Package (DPDK) is a software library for accelerating the data processing of the packet, can provide a simple, convenient, complete and fast solution for processing the data package for the data Plane application program, and is suitable for being used as a bottom layer forwarding platform of a 5G core network data Plane with high requirements on performance and time delay. Since the application of the DPDK is to forward uplink data and/or downlink data of the terminal, the functional module to be detected in the embodiment of the present invention is only the DPDK.

Specifically, a third detection result of the functional module is obtained by detecting the functional module of the UPF. Optionally, the self-function module may be detected through a preset self-checking program, so as to obtain a third detection result. The functional module is detected through the step to obtain a third detection result, so that the working state of the functional module of the UPF is detected, and whether the UPF can forward the data of the terminal or not is determined. For example, when the third detection result is an abnormal state, that is, the working state of the functional module of the UPF is abnormal, that is, data cannot be transmitted or data transmission is faulty, etc.

And S140, if the first detection result, the second detection result or the third detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault.

And the fault detection result comprises a UPF fault or a UPF normal.

Specifically, if any one of the first detection result, the second detection result, and the third detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault. For example, when the first detection result is an abnormal state, the failure detection result of the UPF is a UPF failure. The step can ensure that the UPF fault detection result is normal only when all detection results are in normal states, and ensure that the UPF can normally transmit data when the UPF fault detection result is normal, thereby ensuring the effectiveness of the establishment of subsequent nodes.

It should be noted that, in the embodiment of the present invention, the UPF fault detection is performed in real time, and the interface state of the interface, the link state of the interface, and the working state of the function module are detected in real time, so that the UPF fault detection result is updated in time according to the first detection result, the second detection result, and the third detection result. And when a node establishment request sent by the SMF is received, feeding back a corresponding feedback message to the SMF according to the current UPF fault detection result.

On the basis of the embodiment of the present invention, if the first detection result, the second detection result, or the third detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault, and the method includes: when the first detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault; when each first detection result is in a normal state, the link states of the plurality of interfaces are respectively detected to obtain a second detection result of the link state of each interface, and when the second detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault; when each second detection result is in a normal state, detecting the functional module of the UPF to obtain a third detection result of the functional module, and when the third detection result is in an abnormal state, determining that the fault detection result of the UPF is a UPF fault; and when the third detection result is in a normal state, the fault detection result of the UPF is that the UPF is normal.

Specifically, when the first detection result is in the abnormal state, the failure detection result of the UPF is obtained as the UPF failure, and when all the first detection results are in the normal state, it is described that the N3 and the N6 interfaces are not abnormal at this time. Detecting the link state of each interface to obtain a second detection result of the link state of each interface, and obtaining a UPF fault detection result as a UPF fault when the second detection result is in an abnormal state. And when each second detection result is in a normal state, detecting the functional module of the UPF to obtain a third detection result of the functional module, wherein when the third detection result is in an abnormal state, the fault detection result of the UPF is the UPF fault, and if the third detection result is in a normal state, the fault detection result of the UPF is that the UPF is normal. Through the steps, the interface state of the interface, the link state of the interface and the functional module are detected in a priority mode, and the efficiency of obtaining the fault detection result is improved. Since the link state is always abnormal when the interface state of the interface is abnormal, that is, when the interface is not plugged into a network cable, the link state is detected first and then. When the link state is abnormal, the UPF cannot perform data transmission with the base station and/or the public network, so the priority of the detection of the link state is set to be higher than the priority of the detection of the functional module in the embodiment of the present invention. When the first detection result is in an abnormal state, the fault detection result of the UPF is determined to be the UPF fault, and the detection of the link state and the detection of the functional module are not needed, so that the acquisition efficiency of the fault detection result is improved.

S150, when the UPF receives the node establishment request sent by the SMF, the UPF sends a feedback message corresponding to the fault detection result to the SMF.

And under the condition that the fault detection result is that the UPF is normal, the feedback message is a response message of successful node establishment, and under the condition that the fault detection result is that the UPF is faulty, the feedback message is a response message of failed node establishment. Specifically, when a node establishment request sent by the SMF is received, a feedback message corresponding to the fault detection result is sent to the SMF, so that the SMF can determine whether the node establishment request needs to be sent to a UPF other than the current UPF according to the feedback message. For example, when the failure detection result is a UPF failure, a feedback message associated with the UPF failure is sent to the SMF, so that the SMF selects another UPF sending node except the current UPF to establish the request.

In another embodiment of the present invention, sending a feedback message corresponding to a fault detection result to an SMF includes: if the fault detection result is a UPF fault, sending a response message of node establishment failure to the SMF; and if the fault detection result is that the UPF is normal, sending a response message of successful node establishment to the SMF.

The response message of the node establishment failure may include a UPF failure, a failure reason, and the like. The failure cause can be interface state abnormity, link state abnormity, functional module working state abnormity and the like. It should be understood that the interface state abnormality corresponds to the first detection result being an abnormal state, the link state abnormality corresponds to the second detection result being an abnormal state, and the working state abnormality of the functional module corresponds to the third detection result being an abnormal state. For example, the response message of the node establishment failure is a UPF failure, and the interface state is abnormal. The response message refers to a response message corresponding to the node establishment request.

Specifically, if the failure detection result is a UPF failure, a response message indicating that the node establishment fails is sent to the SMF, so that the SMF can select another UPF except the current UPF to establish the node when receiving the response message indicating that the node establishment fails. And if the fault detection result is that the UPF is normal, sending a response message of successful node establishment to the SMF, so that the node establishment between the SMF and the UPF is successful, and performing subsequent session establishment with the SMF.

Illustratively, in fig. 3, the SMF sends a node establishment request to the UPF, and the node establishment request may be represented as: PFCP Association Setup Request. And the fault detection result of the UPF is that the UPF is normal, so the feedback message is a successful response message established for the node to complete the establishment of the node with the SMF. The response message that the node successfully establishes may be expressed as: PFCP Association Setup Response.

Illustratively, in fig. 4, the SMF sends a node establishment request to the UPF, the failure detection result of the UPF is a UPF failure, and sends a response message indicating that the node establishment failed to the SMF, so that the SMF selects another UPF except the current UPF to establish the node. The response message of the node establishment failure may be expressed as: PFCP Association Setup Response Failed.

Since a problem occurs when data transmission is subsequently performed with a base station or a public network even though the node between the node and the SMF is successfully created under the condition of a UPF fault, a response message of failed node establishment is sent to the SMF under the condition of the UPF fault, so that the SMF can timely select other UPFs except the current UPF.

Example two

Fig. 5 is a schematic flow chart of a 5G-based UPF fault detection method according to an embodiment of the present invention, and the embodiment of the present invention refines step S120 on the basis of an alternative of the foregoing embodiment. Technical terms identical or similar to those of the above embodiments will not be described again.

As shown in fig. 5, the method for detecting a UPF fault based on 5G according to the embodiment of the present invention includes the following steps:

s210, detecting the interface states of the plurality of interfaces of the UPF respectively to obtain a plurality of first detection results.

S220, aiming at each interface, sending a preset detection message from the interface to the router, and if a response message fed back by the router is not received within a preset detection duration, determining that a second detection result of the link state of the interface is an abnormal state; and if the response message fed back by the router is received within the preset detection duration, the second detection result of the link state of the interface is in a normal state.

The preset detection message may be a request message or an instruction, and the response message refers to a response message corresponding to the preset detection message. The preset detection time period refers to a preset time period, and may be set according to actual conditions, for example, 20 milliseconds, 10 milliseconds, and the like.

Specifically, the preset detection message is sent from the interface to the router, and the response message fed back by the router is not received within the preset detection duration, so that the second detection result is in an abnormal state, that is, the link state between the interface and the router at this time is abnormal. On the contrary, if the response message fed back by the router is received within the preset detection duration, the second detection result is obtained as a normal state, that is, the link state between the interface and the router at this time is normal. The method of the step is used for detecting the link state, so that the accuracy of detecting the link state is improved.

Optionally, in the embodiment of the present invention, in order to shorten the detection time, a preset detection message may be sent to multiple interfaces at the same time, and a response message of each interface is waited to be received.

Optionally, the preset detection message is sent from the interface to the router by using a preset detection method, where the preset detection method includes any one of a BFP detection method and a PING detection method.

And S230, detecting the functional module of the UPF to obtain a third detection result of the functional module.

On the basis of the embodiment of the invention, the detection of the functional module of the UPF is carried out to obtain a third detection result of the functional module, and the third detection result comprises the following steps: and detecting the functional module of the UPF based on the test program, judging whether the functional module can obtain a preset test result when running the test program, if so, obtaining a third test result of the functional module as a normal state, and if not, obtaining the third test result of the functional module as an abnormal state.

The test program refers to a preset program for testing the working state of the functional module.

Specifically, the functional module of the UPF is detected based on the test program, whether the test program can obtain a preset test result when the functional module runs is judged, if yes, the third detection result of the functional module is obtained to be in a normal state, and if not, the third detection result of the functional module is obtained to be in an abnormal state. For example, if the test program simulates transmission of data of the base station or the public network, the test program performs simulation test on the functional module to determine whether the functional module can forward the data of the base station or the public network, and if so, the third detection result is obtained as a normal state.

And S240, if the first detection result, the second detection result or the third detection result is in an abnormal state, determining that the fault detection result of the UPF is the UPF fault.

And S250, when the UPF receives the node establishment request sent by the SMF, the UPF sends a feedback message corresponding to the fault detection result to the SMF.

According to the technical scheme of the embodiment of the invention, a plurality of first detection results are obtained by respectively detecting the interface states of a plurality of interfaces of the UPF, each first detection result represents the interface state of one interface of the UPF, aiming at the plurality of interfaces, a preset detection message is sent to the router from the interfaces, if a response message fed back by the router is not received within a preset detection time length, a second detection result of the link state of the interfaces is in an abnormal state, and if the response message fed back by the router is received within the preset detection time length, a second detection result of the link state of the interfaces is in a normal state. And detecting the functional module of the UPF to obtain a third detection result of the functional module, and if the first detection result, the second detection result or the third detection result is in an abnormal state, determining that the fault detection result of the UPF is the UPF fault. And when receiving a node establishment request sent by the SMF, sending a feedback message corresponding to the fault detection result to the SMF. By the technical scheme of the embodiment of the invention, the fault detection of the UPF is realized, and when the node establishment request of the SMF is received, the feedback message corresponding to the fault detection result can be fed back to the SMF in time, so that the effectiveness of establishment with the SMF node is improved.

On the basis of the above embodiment, when the node between the SMF and the UPF is successfully established and the failure detection result is a UPF failure, the UPF sends a node update request to the SMF, and sends a node release response to the SMF when receiving a node update response and a node release request replied by the SMF, so as to release the node between the UPF and the SMF.

Specifically, after the node between the SMF and the UPF is successfully established, the subsequent session establishment is performed, but the failure detection of the UPF is performed all the time, and of course, the failure detection may also be performed at regular time. Therefore, when the fault detection result of the UPF is the UPF fault, namely the data forwarding service cannot be provided for the terminal, the node update request is sent to the SMF, so that the SMF knows the current UPF fault and needs to replace the UPF. And when receiving the node updating response and the node releasing request sent by the SMF, feeding back the node releasing response to the SMF when receiving the node releasing request so as to release the node, so that the SMF can select other UPFs to establish the node.

Referring to fig. 6, after the nodes of the UPF and the SMF are successfully established, at a certain time, the UPF detects that the interface state of the N3 interface is an abnormal state, so that the fault detection result of the UPF is updated to a UPF fault, and the UPF sends a node update request to the SMF, where the node update request may be represented as: association Update Request. After receiving the node updating request, the SMF sends a node updating response to the SMF, which indicates that the SMF receives the node updating request sent by the UPF, and after sending the node updating response, the SMF sends a node releasing request to the UPF so as to release the established node between the SMF and the UPF. The node update response may be expressed as: the Association Update Response, node release request may be expressed as: association Release Request. And the UPF replies a node release response after receiving the node release request to complete the node release between the UPF and the SMF. The node release response may be expressed as: association Release Response.

EXAMPLE III

Fig. 7 is a schematic structural diagram of a 5G-based UPF fault detection apparatus according to an embodiment of the present invention, and the 5G-based UPF fault detection apparatus according to the embodiment of the present invention can execute a 5G-based UPF fault detection method according to any embodiment of the present invention, and has functional modules corresponding to the execution method and beneficial effects.

The device includes: an interface state detection module 710, a link state detection module 720, a function module detection module 730, a fault detection result obtaining module 740 and a feedback message sending module 750; wherein:

the interface state detection module 710 is configured to detect interface states of multiple interfaces of the UPF respectively to obtain multiple first detection results, where each first detection result indicates an interface state of one of the interfaces of the UPF, and the first detection result includes a normal state or an abnormal state; a link status detecting module 720, configured to detect link statuses of the multiple interfaces respectively to obtain second detection results of the link status of each interface, where each second detection result represents a link status of one of the interfaces of the UPF; the link state refers to a link state between the interface and the router, and the second detection result includes a normal state or an abnormal state; the functional module detection module 730 is configured to detect a functional module of the UPF to obtain a third detection result of the functional module, where the third detection result indicates a working state of the functional module of the UPF, the functional module includes a DPDK module, and the third detection result includes a normal state or an abnormal state; a failure detection result obtaining module 740, configured to determine that the failure detection result of the UPF is a UPF failure if the first detection result, the second detection result, or the third detection result is in an abnormal state, where the failure detection result includes a UPF failure or a UPF normal; a feedback message sending module 750, configured to, when the UPF receives a node establishment request sent by the SMF, send a feedback message corresponding to the failure detection result to the SMF, where the feedback message is a response message indicating that the node establishment is successful if the failure detection result is that the UPF is normal, and the feedback message is a response message indicating that the node establishment is failed if the failure detection result is that the UPF is failed.

Further, in this embodiment of the present invention, the fault detection result obtaining module 740 is further configured to:

when the first detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault; when each first detection result is in a normal state, the link states of the plurality of interfaces are respectively detected to obtain a second detection result of the link state of each interface, and when the second detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault; when each second detection result is in a normal state, detecting the functional module of the UPF to obtain a third detection result of the functional module, and when the third detection result is in an abnormal state, determining that the fault detection result of the UPF is a UPF fault; and when the third detection result is in a normal state, the fault detection result of the UPF is that the UPF is normal.

Further, in this embodiment of the present invention, the link status detecting module 720 is further configured to:

sending a preset detection message from the interface to the router for each interface, wherein if a response message fed back by the router is not received within a preset detection duration, a second detection result of the link state of the interface is an abnormal state; and if the response message fed back by the router is received within the preset detection duration, the second detection result of the link state of the interface is in a normal state.

Further, in this embodiment of the present invention, the function module detecting module 730 is further configured to:

and detecting the functional module of the UPF based on the test program, judging whether the test program operated by the functional module can obtain a preset test result, if so, obtaining a third detection result of the functional module as a normal state, and if not, obtaining the third detection result of the functional module as an abnormal state.

Further, in this embodiment of the present invention, the feedback message sending module 750 is further configured to:

if the fault detection result is a UPF fault, sending a response message of the node establishment failure to the SMF; and if the fault detection result is that the UPF is normal, sending a response message of successful node establishment to the SMF.

Further, in this embodiment of the present invention, the interface status detecting module 710 is further configured to:

aiming at a plurality of interfaces, a first detection result of the interface state of the interface is obtained by inquiring the LINK state of the interface, wherein the LINK state comprises an abnormal interface state or a normal interface state.

Further, in the embodiment of the present invention, the apparatus further includes:

and the node release module is used for sending a node update request to the SMF by the UPF when the failure detection result is the UPF failure after the nodes between the SMF and the UPF are successfully established, and sending a node release response to the SMF when receiving a node update response and a node release request replied by the SMF so as to release the nodes between the UPF and the SMF.

It should be noted that, the modules included in the apparatus are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the embodiment of the present invention.

Example four

Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. FIG. 8 illustrates a block diagram of an exemplary electronic device 50 suitable for use in implementing embodiments of the present invention. The electronic device 50 shown in fig. 8 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.

As shown in fig. 8, electronic device 50 is embodied in the form of a general purpose computing device. The components of the electronic device 50 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 various system components (including the system memory 502 and the processing unit 501).

Bus 503 represents one or more of any 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, such architectures include, but are not limited to, 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 50 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 50 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. The electronic device 50 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. 8, and commonly referred to as a "hard drive"). Although not shown in FIG. 8, 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 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 of which or some combination of which 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 50 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 50, and/or with any devices (e.g., network card, modem, etc.) that enable the electronic device 50 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 511. Also, the electronic device 50 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, the network adapter 512 communicates with the other modules of the electronic device 50 over the bus 503. It should be appreciated that although not shown in FIG. 8, other hardware and/or software modules may be used in conjunction with electronic device 50, 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 programs stored in the system memory 502, for example, implementing the 5G-based UPF fault detection method provided by the embodiment of the present invention.

EXAMPLE five

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 a method for 5G-based UPF fault detection, the method including:

respectively detecting the interface states of a plurality of interfaces of the UPF to obtain a plurality of first detection results, wherein each first detection result represents the interface state of one of the interfaces of the UPF, and the first detection results comprise normal states or abnormal states; respectively detecting the link states of the plurality of interfaces to obtain a second detection result of the link state of each interface, wherein each second detection result represents the link state of one interface of the UPF; the link state refers to a link state between the interface and the router, and the second detection result includes a normal state or an abnormal state; detecting the functional module of the UPF to obtain a third detection result of the functional module, wherein the third detection result represents the working state of the functional module of the UPF, the functional module comprises a DPDK module, and the third detection result comprises a normal state or an abnormal state; if the first detection result, the second detection result or the third detection result is in an abnormal state, the fault detection result of the UPF is a UPF fault, and the fault detection result comprises a UPF fault or a UPF normal state; and when receiving a node establishment request sent by the SMF, sending a feedback message corresponding to the fault detection result to the SMF, wherein the feedback message comprises a response message of successful node establishment or a response message of failed node establishment.

Computer storage media for embodiments of the present 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. 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 embodiments 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).

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. A UPF fault detection method based on 5G is characterized by comprising the following steps:

when the UPF receives a node establishment request sent by the SMF, the UPF sends a feedback message corresponding to the fault detection result to the SMF, the feedback message is a response message of successful node establishment under the condition that the fault detection result is that the UPF is normal, and the feedback message is a response message of failed node establishment under the condition that the fault detection result is that the UPF is faulty.

2. The method according to claim 1, wherein if the first detection result, the second detection result, or the third detection result is in an abnormal state, the detecting result of the UPF fault is the UPF fault, and the method includes:

when the first detection result is in an abnormal state, the fault detection result of the UPF is the UPF fault;

when each first detection result is in a normal state, respectively detecting the link states of the plurality of interfaces to obtain a second detection result of the link state of each interface, and when the second detection result is in an abnormal state, determining that the fault detection result of the UPF is the UPF fault;

when each second detection result is in a normal state, detecting the functional module of the UPF to obtain a third detection result of the functional module, and when the third detection result is in an abnormal state, determining that the fault detection result of the UPF is the UPF fault;

and when the third detection result is in a normal state, the fault detection result of the UPF is that the UPF is normal.

3. The method according to claim 1, wherein the detecting the link statuses of the plurality of interfaces respectively to obtain the second detection result of the link status of each interface includes:

sending a preset detection message to the router from the interface aiming at each interface, wherein if a response message fed back by the router is not received within a preset detection time length, a second detection result of the link state of the interface is an abnormal state;

and if the response message fed back by the router is received within the preset detection duration, the second detection result of the link state of the interface is in a normal state.

4. The 5G-based UPF fault detection method according to claim 1, wherein the detecting the functional module of the UPF to obtain a third detection result of the functional module comprises:

and detecting the functional module of the UPF based on the test program, judging whether the functional module runs the test program to obtain a preset test result, if so, obtaining a third detection result of the functional module as a normal state, and if not, obtaining the third detection result of the functional module as an abnormal state.

5. The 5G-based UPF fault detection method of claim 1, wherein the sending a feedback message corresponding to the fault detection result to the SMF comprises:

if the fault detection result is the UPF fault, sending a response message of node establishment failure to the SMF;

and if the fault detection result is that the UPF is normal, sending a response message of successful node establishment to the SMF.

6. The UPF fault detection method based on 5G according to claim 1, wherein the detecting the interface states of the plurality of interfaces of the UPF respectively to obtain a plurality of first detection results includes:

aiming at a plurality of interfaces, acquiring a first detection result of the interface states of the interfaces by inquiring the LINK states of the interfaces, wherein the LINK states comprise abnormal interface states or normal interface states.

7. The 5G-based UPF fault detection method of claim 5, further comprising:

and when the node between the SMF and the UPF is successfully established and the failure detection result is a UPF failure, the UPF sends a node updating request to the SMF, and sends a node releasing response to the SMF when receiving a node updating response and a node releasing request replied by the SMF so as to release the node between the UPF and the SMF.

8. A UPF fault detection device based on 5G is characterized by comprising:

the interface state detection module is used for respectively detecting the interface states of a plurality of interfaces of the UPF to obtain a plurality of first detection results, each first detection result represents the interface state of one of the interfaces of the UPF, and the first detection results comprise normal states or abnormal states;

a link state detection module, configured to detect link states of the multiple interfaces respectively to obtain second detection results of the link state of each interface, where each second detection result represents a link state of one of the interfaces of the UPF; the link state refers to a link state between an interface and a router, and the second detection result comprises a normal state or an abnormal state;

a feedback message sending module, configured to send, by the UPF, a feedback message corresponding to the fault detection result to the SMF when the UPF receives a node establishment request sent by the SMF, where the feedback message is a response message indicating that the node establishment is successful when the fault detection result is that the UPF is normal, and the feedback message is a response message indicating that the node establishment is failed when the fault detection result is that the UPF is faulty.

9. An electronic device, comprising:

one or more processors;

a storage device to store one or more programs,

when executed by the one or more processors, cause the one or more processors to implement the 5G-based UPF fault detection method of any of claims 1-7.

10. A storage medium containing computer-executable instructions for performing the 5G-based UPF fault detection method of any one of claims 1-7 when executed by a computer processor.