CN118175566B - Link detection method, device, equipment and readable storage medium - Google Patents
Link detection method, device, equipment and readable storage medium Download PDFInfo
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- H—ELECTRICITY
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Abstract
The application discloses a link detection method, a device, equipment and a readable storage medium, wherein the link detection method is applied to a session management function network element and comprises the following steps: determining network equipment to be detected; generating link detection control information according to the network equipment to be detected; and sending the link detection control information to detection equipment corresponding to the network equipment to be detected, so that the detection equipment can carry out link detection on the network equipment to be detected according to the link detection control information. Therefore, the application determines the network equipment to be detected which needs to carry out the link detection by the session management function network element and transmits the corresponding link control information to the detection equipment corresponding to the network equipment to be detected, namely the session management function network element comprehensively manages the link detection process, so that the detection equipment does not need to carry out the link detection on each corresponding equipment to be detected at regular time, the resource occupation of the detection equipment during the link detection is reduced, and the network element efficiency during the link detection is improved.
Description
Technical Field
The present application relates to the field of communications, and more particularly, to a link detection method, apparatus, device, and readable storage medium.
Background
The overall architecture in the fifth generation communication system (5G) includes an access management Function (ACCESS MANAGEMENT Function, AMF), a session management Function network element (Session Management Function, SMF) and a user plane Function network element (User Plane Function, UPF). The connection of the User plane is from User Equipment (UE) to a Radio Access Network (R) AN to a UPF to a Data Network (DN); the control plane is connected from UE to AMF to SMF, the control plane and the user plane are separated structures, the user plane function interacts with the session management function network element through the N4 interface, is directly controlled and managed by the session management function network element, and executes the processing of the service flow according to various strategies issued by the session management function network element. In order to maintain the normal operation of 5G systems, link detection is typically required for both the radio access network and the user plane functional network elements.
At present, link detection is performed by sending detection messages and receiving detection response messages between a user plane function network element and a connected wireless access network by timing, and when the wireless access network or the user plane function exceeds a certain number of times and does not reply to the detection response messages, the link fault of the wireless access network or the user plane function network element can be determined. However, since the user plane function network element typically interfaces with hundreds or even more radio access networks, the current link detection method consumes a large amount of computing resources of the user plane function, resulting in a reduced efficiency of the network element.
Disclosure of Invention
The embodiment of the application provides a link detection method, a device, equipment and a readable storage medium, which can improve network element efficiency during link detection.
In view of this, an embodiment of the present application provides a link detection method, which is applied to a session management function network element, including:
determining network equipment to be detected;
generating link detection control information according to the network equipment to be detected;
and sending the link detection control information to detection equipment corresponding to the network equipment to be detected, so that the detection equipment can carry out link detection on the network equipment to be detected according to the link detection control information.
Optionally, the network device to be detected includes a radio access network to be detected and/or a user plane function to be detected; when the network equipment to be detected comprises the wireless access network to be detected, the detection equipment comprises a user plane function network element corresponding to the wireless access network to be detected; when the network equipment to be detected comprises a user plane function network element to be detected, the detection equipment comprises a wireless access network corresponding to the user plane function network element to be detected.
Optionally, the link detection control information includes link detection address information and/or link detection indication information, where the link detection address information includes address information of the network device to be detected, and the link detection indication information is used to indicate whether the detection device performs link detection.
Optionally, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection address information, the sending the link detection control information to a detection device corresponding to the network device to be detected includes:
transmitting the link detection address information to a user plane function network element corresponding to the wireless access network to be detected through a coupling establishment request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling establishment response message;
Or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update response message.
Optionally, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection indication information, the sending the link detection control information to the detection device corresponding to the network device to be detected includes:
transmitting the link detection indication information to a user plane function network element corresponding to the wireless access network to be detected through a session creation request message;
Or, the link detection indication information is sent to the user plane function network element corresponding to the radio access network to be detected through a session modification request message.
Optionally, when the network device to be detected includes a user plane function network element to be detected and the link detection control information includes link detection indication information, the sending the link detection control information to a detection device corresponding to the network device to be detected includes:
and sending the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
Optionally, the sending the link detection indication information to the radio access network corresponding to the to-be-detected user plane function network element through a communication protocol message includes:
And sending the link detection indication information to an access management function network element so that the access management function network element can send the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
The embodiment of the application also provides a link detection device, which is applied to the session management function network element and comprises:
A determining unit, configured to determine a network device to be detected;
A generating unit, configured to generate link detection control information according to the network device to be detected;
and the sending unit is used for sending the link detection control information to detection equipment corresponding to the network equipment to be detected, so that the detection equipment can carry out link detection on the network equipment to be detected according to the link detection control information.
The embodiment of the application also provides computer equipment, which comprises: a memory, a processor, and a bus system;
Wherein the memory is used for storing programs;
The processor is configured to execute the program in the memory, so as to implement any one of the link detection methods described above;
the bus system is used for connecting the memory and the processor so as to enable the memory and the processor to communicate.
The embodiments of the present application also provide a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to perform any of the link detection methods described above.
The embodiment of the application provides a link detection method which is applied to a session management function network element and comprises the following steps: determining network equipment to be detected; generating link detection control information according to the network equipment to be detected; and sending the link detection control information to detection equipment corresponding to the network equipment to be detected, so that the detection equipment can carry out link detection on the network equipment to be detected according to the link detection control information. Therefore, the application determines the network equipment to be detected which needs to carry out the link detection by the session management function network element and transmits the corresponding link control information to the detection equipment corresponding to the network equipment to be detected, namely the session management function network element comprehensively manages the link detection process, so that the detection equipment does not need to carry out the link detection on each corresponding equipment to be detected at regular time, the resource occupation of the detection equipment during the link detection is reduced, and the network element efficiency during the link detection is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall architecture of a fifth generation communication system according to an embodiment of the present application;
Fig. 2 is a schematic flow chart of a link detection method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a format of link detection indication information according to an embodiment of the present application;
Fig. 4a is a schematic flow diagram of a session management function network element triggering coupling establishment flow according to an embodiment of the present application;
fig. 4b is a schematic flow diagram of a user plane function network element triggering coupling establishment flow provided in an embodiment of the present application;
fig. 4c is a schematic flow diagram of a session management function network element triggering coupling update flow according to an embodiment of the present application;
fig. 4d is a schematic flow diagram of a user plane function network element triggering coupling update flow provided in an embodiment of the present application;
Fig. 5a is a schematic diagram of a format of link detection address information in a coupling establishment request message, a coupling establishment response message, a coupling update request message, and a coupling update response message according to an embodiment of the present application;
fig. 5b is a schematic diagram of a format of link detection indication information in a session creation request message or a session modification request message according to an embodiment of the present application;
Fig. 5c is a schematic diagram of formats of PDU Session Resource Setup Request Transfer fields and PDU Session Resource Modify Request Transfer fields of link detection indication information according to an embodiment of the present application;
fig. 6 is a flow chart of another link detection method according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a link detection device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the overall architecture in the fifth generation communication system (5G) includes an access management Function (ACCESS MANAGEMENT Function, AMF) network element, a session management Function (Session Management Function, SMF) network element, and a user plane Function (User Plane Function, UPF) network element. In the subsequent embodiments, the functional network element is simply referred to as a "function", for example, the access management function network element is simply referred to as an access management function; the session management function network element is called session management function for short, and the user plane management function network element is called user plane management function for short.
The connection of the User plane is from User Equipment (UE) to a Radio Access Network (R) AN to a UPF to a Data Network (DN); the control plane is connected from UE to AMF to SMF, the control plane and the user plane are separated structures, the user plane function interacts with the session management function through the N4 interface, is directly controlled and managed by the session management function, and executes the processing of the service flow according to various strategies issued by the session management function.
The user plane messages of the N3 interface are encapsulated using the general packet radio service tunneling protocol user plane (GENERAL PACKET Radio Service Tunnelling Protocol User Plane, GTP-U) protocol. GTP-U adopts user datagram protocol (User Datagram Protocol, UDP) protocol encapsulation, and the IP message head to which GTP-U belongs carries a source Internet protocol (Internet Protocol, IP) address and a destination IP address. Based on the IP route, the message is transmitted between the (R) AN and the UPF, so that a transmission channel is formed between the (R) AN and the UPF.
The N3 interface between the (R) AN and the UPF needs to support user plane link detection as specified by the 3gpp TS 23.007 protocol, i.e. the UPF sends a detection message (GTP-U Echo Request) to the (R) AN at regular time, (R) AN replies with a detection Response message (GTP-U Echo Response) to the UPF after receiving the GTP-U Echo Request, and the same thing (R) AN also sends a (GTP-U Echo Request) to the UPF at regular time, and the UPF replies with a GTP-U Echo Response to the (R) AN after receiving the GTP-U Echo Request. When the (R) AN exceeds a certain number of GTP-U Echo requests sent by the non-replied UPF, the UPF considers the user plane link fault with the (R) AN, and similarly when the UPF exceeds a certain number of Echo requests sent by the non-replied (R) AN, the (R) AN considers the user plane link fault with the UPF. The protocol also specifies that when a link failure occurs, the (R) AN or UPF needs to report the failure to the operation and maintenance system, e.g., report a user plane link failure alarm, and the (R) AN or UPF also needs to delete the transmission channel resources associated with this link.
In AN actual 5G deployment, typically the UPF will dock hundreds to thousands or more (R) ANs, and the UPF will initiate user plane link detection to the docked (R) ANs at regular times, send GTP-U Echo Request messages to these (R) ANs and receive GTP-U Echo Response messages from the (R) ANs, while the UPF will also receive GTP-U Echo requests sent by these (R) ANs and reply to them. These processes consume computing resources of the (R) AN, especially UPF, resulting in a less efficient network element. Where network element efficiency is used in a communication network to measure the performance and efficiency of network elements (network elements). The network elements are the basic elements constituting the communication network, such as switches, routers, base stations, etc. The efficiency of the network element directly affects the performance and service quality of the whole communication network.
Therefore, in view of the above problems, embodiments of the present application provide a method, an apparatus, a device, and a readable storage medium for link detection, which can improve network element efficiency during link detection.
Referring to fig. 2, the link detection method provided by the embodiment of the present application may be applied to a session management function, and specifically includes the following steps:
s201, determining the network equipment to be detected.
In the embodiment of the application, the session management function can determine the network equipment to be detected, which needs to perform link detection, from the controlled and managed network equipment to be detected.
It can be understood that the session management function can overall manage the link detection process, that is, the device to be detected that needs to perform link detection can be directly determined by the session management function, so that the corresponding detection device does not need to perform link detection on each device to be detected at regular time, the resource occupation of the detection device during link detection is reduced, and the network element efficiency during link detection is improved. Specifically, the technician may determine the network device to be detected that needs to perform link detection, and configure the network device to the session management function, so that the session management function may determine the network device to be detected that needs to perform link detection.
In one possible implementation manner of the embodiment of the present application, the network device to be detected includes a radio access network to be detected and/or a user plane function to be detected; when the network equipment to be detected comprises a wireless access network to be detected, the detection equipment comprises a user plane function corresponding to the wireless access network to be detected; when the network equipment to be detected comprises the user plane function to be detected, the detection equipment comprises a wireless access network corresponding to the user plane function to be detected. It can be understood that the session management function can directly determine the radio access network to be detected and/or the user plane function to be detected, which need to perform link detection, so that the corresponding user plane function does not need to perform link detection on each radio access network at regular time, the corresponding radio access network does not need to perform link detection on the corresponding user plane function at regular time, and the resource occupation of the user plane function during link detection is reduced, thereby improving the network element efficiency during link detection.
S202, generating link detection control information according to the network equipment to be detected.
In the embodiment of the application, after the network equipment to be detected is determined, the session management function can generate the link detection control information according to the network equipment to be detected, so that the network equipment to be detected can be subjected to link detection by the detection equipment by sending the link control information to the detection equipment corresponding to the network equipment to be detected, the detection equipment does not need to carry out link detection on each equipment to be detected at regular time, the resource occupation of the detection equipment during the link detection is reduced, and the network element efficiency during the link detection is improved.
In a possible implementation manner of the embodiment of the present application, the link detection control information includes link detection address information and/or link detection indication information, where the link detection address information includes address information of the network device to be detected, and the link detection indication information is used to indicate whether the detection device performs link detection. It is understood that the link detection control information determined according to the network device to be detected may include link detection address information (GTP-U Path Detection Information Element), which may also be referred to as a GTP-U link detection information unit. The link detection address information may include address information of a network device to be detected, for example, address information of one or more radio access networks to be detected and/or address information of one or more user plane functions to be detected. The link detection control information may further include link detection Indication information (GTP-U PATH DETECT Indication IE) for indicating whether the detection device corresponding to the device to be detected performs link detection on the device to be detected, which may also be referred to as a GTP-U link detection Indication information element. The specific format of the link detection indication information may be as shown in fig. 3.
In the session creation process of the 5G architecture, the session management function notifies the user plane function to create and update session resources, and notifies the radio access network to create session resources, wherein the key step is to bring the IP address and the tunnel endpoint identifier (Tunnel Endpoint Identifier, TEID) of the radio access network to the user plane function and bring the IP address and the TEID of the user plane function to the radio access network, so that the link detection control information can also realize that the user plane function corresponding to the radio access network to be detected detects the radio access network to be detected or realize that the radio access network corresponding to the user plane function to be detected detects the user plane function to be detected under the condition that the link detection instruction information is only included but not the link detection address information.
And S203, the link detection control information is sent to detection equipment corresponding to the network equipment to be detected.
In this embodiment, after the session management function generates the link detection control information, the link control information may be sent to the detection device corresponding to the network device to be detected, so that after the detection device receives the link detection control information, the detection device may perform link detection on the network device to be detected according to the link detection control information, so that the corresponding detection device does not need to perform link detection on each device to be detected at regular time, which reduces resource occupation of the detection device during link detection, and thus improves network element efficiency during link detection. It can be understood that when the network device to be detected is a radio access network to be detected, the link control information may be sent to a user plane function corresponding to the radio access network to be detected, so that after receiving the link detection control information, the user management function may perform link detection on the radio access network to be detected according to the link detection control information. When the network equipment to be detected is the user plane function to be detected, the link control information can be sent to the wireless access network corresponding to the user plane function to be detected, so that the wireless access network can perform link detection on the user plane function to be detected according to the link detection control information after receiving the link detection control information.
In one possible implementation manner of the embodiment of the present application, when a network device to be detected includes a radio access network to be detected, and link detection control information includes link detection address information, the link detection address information is sent to a user plane function corresponding to the radio access network to be detected through a coupling establishment request message; or, the link detection address information is sent to the user plane function corresponding to the wireless access network to be detected through a coupling establishment response message; or, the link detection address information is sent to the user plane function corresponding to the wireless access network to be detected through a coupling update request message; or, the link detection address information is sent to the user plane function corresponding to the wireless access network to be detected through a coupling update response message.
It may be understood that, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection address information, the session management function may send the link detection address information to a user plane function corresponding to the radio access network to be detected through a coupling establishment request message, or a coupling establishment response message, or a coupling update request message, or a coupling update response message.
In particular, the session management function communicates with the user plane function based on a packet forwarding control protocol (Packet Forwarding Control Protocol, PFCP) described in 3gpp TS 29.244. The session management function and the user plane function first need to establish coupling through a coupling establishment procedure, and the coupling establishment procedure can be triggered by the session management function or by the user plane function. After the coupling is established successfully, the coupling information can be updated through a coupling updating flow, and the coupling updating flow can be triggered by a session management function or a user plane function.
Thus, as shown in fig. 4a, when the session management function triggers the coupling setup procedure, the session management function may send link detection address information to the user plane function through a coupling setup request message (Association Setup Request).
As shown in fig. 4b, when the user plane function triggers the coupling setup procedure, the session management function may send link detection address information to the user plane function through a coupling setup response message (Association Setup Response).
As shown in fig. 4c, when the session management function triggers the coupling update procedure, the session management function may send link detection address information to the user plane function through a coupling update request message (Association Update Request).
As shown in fig. 4d, when the user plane function triggers the coupling update procedure, the session management function may send link detection address information to the user plane function through a coupling update response message (Association Update Response).
The type of the link detection address information may be a Remote GTP-U entity (Remote GTP-U Peer), and a specific format of the Remote GTP-U Peer information unit is defined in 3gpp TS 29.244 section 8.2.70. The specific format of the link detection address information in the coupling setup request message, the coupling setup response message, the coupling update request message, and the coupling update response message may be as shown in fig. 5 a.
In one possible implementation manner of the embodiment of the present application, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection indication information, the link detection indication information is sent to a user plane function corresponding to the radio access network to be detected through a session creation request message; or, the link detection indication information is sent to the user plane function corresponding to the radio access network to be detected through the session modification request message. It may be appreciated that in the session creation procedure and the session modification procedure, the session management function needs to send a session creation request message (Session Setup Request) and a session modification request message (Session Modification Request) to the user plane function based on the PFCP protocol, so that the session management function may add the link detection indication information to the session creation request message or the session modification request message to implement sending the link detection indication information to the user plane function corresponding to the radio access network to be detected. The specific format of the link detection indication information in the session creation request message or the session modification request message may be as shown in fig. 5 b.
In one possible implementation manner of the embodiment of the present application, when the network device to be detected includes a user plane function to be detected and the link detection control information includes link detection indication information, the link detection indication information is sent to a radio access network corresponding to the user plane function to be detected through a communication protocol message. It is understood that the session management function and the radio access network are based on the next generation application protocol (Next Generation Application Protocol, NGAP) described in 3gpp TS 38.413. Therefore, the session management function may implement sending the link detection indication information to the radio access network corresponding to the user plane function to be detected through the communication protocol message by adding the link detection indication information to the communication protocol message.
In one possible implementation manner of the embodiment of the present application, the link detection indication information may be sent to the access management function, so that the access management function sends the link detection indication information to the radio access network corresponding to the user plane function to be detected through the communication protocol message. It will be appreciated that messages communicated between the session management function and the radio access network may be forwarded by the access management function. The session management function may carry a forwarding field specified by the NGAP protocol in the N11 interface, and the access management function assembles the forwarding field into a complete NGAP protocol message and sends the complete NGAP protocol message to the radio access network through the N2 interface. The forwarding fields specified by the NGAP protocol may be a PDU session resource setting request transmission (PDU Session Resource Setup Request Transfer) field and a PDU session resource modification request transmission (PDU Session Resource Modify Request Transfer) field, to which link detection indication information is added, and the specific format of the link detection indication information in the PDU Session Resource Setup Request Transfer field and the PDU Session Resource Modify Request Transfer field may be as shown in fig. 5 c.
As can be seen from the description of the foregoing embodiments, in the link detection method provided by the embodiments of the present application, a session management function determines a network device to be detected that needs to perform link detection, and sends corresponding link control information to a detection device corresponding to the network device to be detected, that is, the session management function coordinates and manages a link detection process, so that the detection device does not need to perform link detection on each corresponding device to be detected at regular time, thereby reducing resource occupation of the detection device during link detection, and improving network element efficiency during link detection.
In order to make the technical scheme of the application clearer and easier to understand, the link detection method of the application is described in detail below with reference to specific communication scenes.
Referring to fig. 6, an embodiment of the present application provides another link detection method, which specifically includes the following steps:
1. The SMF sends an N11 interface message to the AMF, wherein the message carries PDU Session Resource Setup Request Transfer fields, and the fields carry GTP-U PATH DETECT Indication IE of link detection Indication information, wherein the link detection Indication information is used for indicating whether the detection equipment corresponding to the equipment to be detected carries out link detection on the equipment to be detected.
2. The AMF sends a PDU session resource setting request (PDU Session Resource Setup Request) message to the (R) AN, where the message carries PDU Session Resource Setup Request Transfer field, and further carries a link detection Indication information GTP-U PATH DETECT Indication IE.
3. (R) AN sends PDU session resource setup response (PDU Session Resource Setup Response) message to AMF.
4. The AMF sends an N11 interface message to the SMF, which carries the PDU session resource setting response transmission (PDU Session Resource Setup Response Transfer) field.
5. The SMF sends a PFCP session modification request (PFCP Session Modification Request) message to the UPF, where the message carries a GTP-U PATH DETECT Indication IE of link detection address information, where the link detection address information may include address information of a network device to be detected.
6. The UPF sends a PFCP session modification response (PFCP Session Modification Response) message to the SMF.
As can be seen from the description of the above embodiments, the embodiments of the present application provide another link detection method, in which AN SMF uniformly controls a user plane link that needs to perform state detection, and indicates whether a GTP-U opposite end needs to perform link detection by transmitting corresponding parameters to AN (R) AN and a UPF, so as to control link detection actions of the (R) AN and the UPF, so that the user plane link detection focuses on a critical link, thereby improving network element efficiency during link detection.
Referring to fig. 7, an embodiment of the present application further provides a link detection apparatus, where the link detection apparatus is applied to a session management function network element, and the apparatus includes:
A determining unit 701, configured to determine a network device to be detected;
a generating unit 702, configured to generate link detection control information according to the network device to be detected;
and the sending unit 703 is configured to send the link detection control information to a detection device corresponding to the network device to be detected, so that the detection device performs link detection on the network device to be detected according to the link detection control information.
Optionally, the network device to be detected includes a radio access network to be detected and/or a user plane function network element to be detected; when the network equipment to be detected comprises the wireless access network to be detected, the detection equipment comprises a user plane function network element corresponding to the wireless access network to be detected; when the network equipment to be detected comprises a user plane function network element to be detected, the detection equipment comprises a wireless access network corresponding to the user plane function network element to be detected.
Optionally, the link detection control information includes link detection address information and/or link detection indication information, where the link detection address information includes address information of the network device to be detected, and the link detection indication information is used to indicate whether the detection device performs link detection.
Optionally, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection address information, the sending unit 703 is specifically configured to:
transmitting the link detection address information to a user plane function network element corresponding to the wireless access network to be detected through a coupling establishment request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling establishment response message;
Or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update response message.
Optionally, when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection indication information, the sending unit 703 is specifically configured to:
transmitting the link detection indication information to a user plane function network element corresponding to the wireless access network to be detected through a session creation request message;
Or, the link detection indication information is sent to the user plane function network element corresponding to the radio access network to be detected through a session modification request message.
Optionally, when the network device to be detected includes a user plane function network element to be detected and the link detection control information includes link detection indication information, the sending unit 703 is specifically configured to:
and sending the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
Optionally, the sending unit 703 is specifically configured to:
And sending the link detection indication information to an access management function network element so that the access management function network element can send the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
As can be seen from the description of the foregoing embodiments, the link detection apparatus provided in the embodiments of the present application determines, by a session management function, a network device to be detected that needs to perform link detection, and sends corresponding link control information to detection devices corresponding to the network device to be detected, that is, the session management function coordinates and manages a link detection process, so that the detection devices do not need to perform link detection on each corresponding device to be detected at regular time, thereby reducing resource occupation of the detection devices during link detection, and improving network element efficiency during link detection.
The embodiment of the application also provides computer equipment, which comprises: a memory, a processor, and a bus system;
Wherein the memory is used for storing programs;
The processor is configured to execute the program in the memory, so as to implement any one of the link detection methods described above;
the bus system is used for connecting the memory and the processor so as to enable the memory and the processor to communicate.
The embodiments of the present application also provide a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to perform a link detection method as described above.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method of link detection, applied to a session management function network element, the method comprising:
Determining network equipment to be detected, wherein the network equipment to be detected comprises a wireless access network to be detected and/or a user plane function network element to be detected; when the network equipment to be detected comprises the wireless access network to be detected, the detection equipment corresponding to the network equipment to be detected comprises a user plane function network element corresponding to the wireless access network to be detected; when the network equipment to be detected comprises a user plane function network element to be detected, the detection equipment corresponding to the network equipment to be detected comprises a wireless access network corresponding to the user plane function network element to be detected;
Generating link detection control information according to the network equipment to be detected, wherein the link detection control information comprises link detection address information and/or link detection indication information, the link detection address information comprises address information of the network equipment to be detected, the link detection indication information is used for indicating whether the detection equipment performs link detection or not, and the link detection is used for detecting whether the network equipment to be detected has link failure or not;
and sending the link detection control information to detection equipment corresponding to the network equipment to be detected, so that the detection equipment can carry out link detection on the network equipment to be detected according to the link detection control information.
2. The method according to claim 1, wherein when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection address information, the sending the link detection control information to a detection device corresponding to the network device to be detected includes:
transmitting the link detection address information to a user plane function network element corresponding to the wireless access network to be detected through a coupling establishment request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling establishment response message;
Or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update request message;
or, the link detection address information is sent to the user plane function network element corresponding to the wireless access network to be detected through a coupling update response message.
3. The method according to claim 1, wherein when the network device to be detected includes a radio access network to be detected and the link detection control information includes link detection indication information, the sending the link detection control information to a detection device corresponding to the network device to be detected includes:
transmitting the link detection indication information to a user plane function network element corresponding to the wireless access network to be detected through a session creation request message;
Or, the link detection indication information is sent to the user plane function network element corresponding to the radio access network to be detected through a session modification request message.
4. The method according to claim 1, wherein when the network device to be detected includes a user plane function network element to be detected and the link detection control information includes link detection indication information, the sending the link detection control information to a detection device corresponding to the network device to be detected includes:
and sending the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
5. The method according to claim 4, wherein sending the link detection indication information to the radio access network corresponding to the to-be-detected user plane function network element through a communication protocol message comprises:
And sending the link detection indication information to an access management function network element so that the access management function network element can send the link detection indication information to the wireless access network corresponding to the user plane function network element to be detected through a communication protocol message.
6. A link detection apparatus, wherein the link detection apparatus is applied to a session management function network element, the apparatus comprising:
A determining unit, configured to determine a network device to be detected, where the network device to be detected includes a radio access network to be detected and/or a user plane function network element to be detected; when the network equipment to be detected comprises the wireless access network to be detected, the detection equipment corresponding to the network equipment to be detected comprises a user plane function network element corresponding to the wireless access network to be detected; when the network equipment to be detected comprises a user plane function network element to be detected, the detection equipment corresponding to the network equipment to be detected comprises a wireless access network corresponding to the user plane function network element to be detected;
A generating unit, configured to generate link detection control information according to the network device to be detected;
The sending unit is configured to send the link detection control information to a detection device corresponding to the network device to be detected, so that the detection device performs link detection on the network device to be detected according to the link detection control information, where the link detection control information includes link detection address information and/or link detection indication information, the link detection address information includes address information of the network device to be detected, and the link detection indication information is used to indicate whether the detection device performs link detection, and the link detection is to detect whether the network device to be detected has a link failure.
7. A computer device, comprising: a memory, a processor, and a bus system;
Wherein the memory is used for storing programs;
The processor being adapted to execute a program in the memory to implement the method of any one of claims 1 to 5;
the bus system is used for connecting the memory and the processor so as to enable the memory and the processor to communicate.
8. A computer readable storage medium storing instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 5.
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