CN113328907B - Method, core network, apparatus and medium for performance and error detection in a communication network - Google Patents
Method, core network, apparatus and medium for performance and error detection in a communication network Download PDFInfo
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- CN113328907B CN113328907B CN202110504514.0A CN202110504514A CN113328907B CN 113328907 B CN113328907 B CN 113328907B CN 202110504514 A CN202110504514 A CN 202110504514A CN 113328907 B CN113328907 B CN 113328907B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
The invention discloses a performance and error detection method in a communication network, a core network, a computer device and a storage medium, wherein the performance and error detection method comprises the steps of acquiring state data reported by a terminal by the core network, determining a tracking area, a network slice and a service type to which the state data belongs, recording the corresponding relation between the performance defect or error and the tracking area, the network slice and the service type to which the state data belongs when analyzing the performance defect or error, counting the performance defect or error corresponding to each tracking area, network slice and service type within a period of time, positioning faults according to the counting result and the like. The core network in the invention can analyze the performance defect or error from the state data, thereby breaking through the limitation of self-error correction only from the network side, and effectively finding and optimizing the communication fault or error existing at the terminal side and the like in time, thereby improving the overall stability of the communication network. The invention is widely applied to the technical field of computers.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a performance and error detection method in a communication network, a core network, a computer apparatus, and a storage medium.
Background
The self-error-correcting mechanism in the existing communication network technology mainly depends on the network element in the core network to perform error correction. Standard protocols such as 23501-G70, 23501-G71 and 23288-G60 in TS 3GPP specify a self-error-correction mechanism of a 5G communication network, which relies on a network element in a core network to automatically report its performance or error data to an OAM network element or an NWDAF network element for processing. However, due to the problem of error correction policy configuration of the network element, the identification of the fault or error by the network element in the core network is one-sidedly, for example, the fault or error concerned by the network element is an error at the network end, and the performance and error of the interaction between the terminal side and the network and the problem in the aspect of the communication link are easily ignored, so that the problem of "survivor deviation" is caused, some faults or errors are not found all the time, and further, the problem is not solved and optimized, and the error correction range of the self-error correction mechanism is limited.
Disclosure of Invention
In view of at least one of the above technical problems, it is an object of the present invention to provide a performance and error detection method, a core network, a computer apparatus and a storage medium in a communication network.
In one aspect, an embodiment of the present invention includes a method for detecting performance and error in a communication network, including:
the core network acquires state data; the state data is reported to the core network by the terminal regularly or irregularly;
the core network determines a tracking area, a network slice and a service type to which the state data belongs;
when the core network analyzes the performance defect or error from the state data, the core network records the corresponding relation between the performance defect or error and the tracking area, the network slice and the service type which the state data belongs to;
and the core network counts performance defects or errors corresponding to each tracking area, each network slice and each service type within a period of time, and carries out fault positioning according to the statistical result.
Further, the state data is collected by the terminal in a service flow with the core network.
Further, the status data includes a normal log, an error log and a comparison result between the normal log and the error log generated by the terminal in the service process.
Further, the core network counts performance defects or errors corresponding to each tracking area, network slice and service type within a period of time, and performs fault location according to the statistical result, including:
determining suspected fault tracking areas, suspected fault network slices and suspected fault service types according to the corresponding performance defects or error accumulated quantity of each tracking area, each network slice and each service type in a period of time;
determining a suspected fault network element; the suspected fault network element is a network element in the core network, and the suspected fault network element simultaneously corresponds to one or more of the suspected fault tracking area, the suspected fault network slice and the suspected fault service type;
and reporting the information of the suspected fault network element to a network management platform.
On the other hand, the embodiment of the present invention further includes a core network, where the core network is connected to a terminal, and the terminal reports status data to the core network at regular time or at irregular time, and the core network includes:
an AMF network element; the AMF network element is used for receiving the state data;
the NRF unit is used for searching the NWDAF network element matched with the state data;
an NWDAF network element; the NWDAF network element is configured to determine a tracking area, a network slice, and a service type to which the status data belongs, and when the NWDAF network element analyzes a performance defect or an error from the status data, the NWDAF network element records a correspondence between the performance defect or the error and the tracking area, the network slice, and the service type to which the status data belongs; and the NWDAF network element counts performance defects or errors corresponding to each tracking area, each network slice and each service type within a period of time, and carries out fault positioning according to the statistical result.
Further, the state data is collected by the terminal in a service flow with the core network.
Further, the status data includes a normal log, an error log and a comparison result between the normal log and the error log generated by the terminal in the service process.
Further, the NWDAF network element counts performance defects or errors corresponding to each tracking area, network slice, and service type within a period of time, and performs fault location according to the statistical result, including:
determining suspected fault tracking areas, suspected fault network slices and suspected fault service types according to the corresponding performance defects or error accumulated quantity of each tracking area, each network slice and each service type in a period of time;
determining a suspected fault network element; the suspected fault network element is a network element in the core network, and the suspected fault network element simultaneously corresponds to one or more of the suspected fault tracking area, the suspected fault network slice and the suspected fault service type;
and reporting the information of the suspected fault network element to a network management platform.
In another aspect, embodiments of the present invention further include a computer apparatus including a memory for storing at least one program and a processor for loading the at least one program to perform the performance and error detection method in the communication network in the embodiments.
In another aspect, the present invention further includes a storage medium in which a processor-executable program is stored, where the processor-executable program is used to execute the performance and error detection method in the communication network in the embodiment when executed by the processor.
The invention has the beneficial effects that: in the performance and error detection method in the embodiment, the terminal collects and uploads the state data to the core network, and the state data comprises the tracking area, the network slice and the service type of the terminal, so that the core network can analyze the performance defect or error from the state data, thereby breaking through the limitation that the network element level self-error correction is only carried out from the network side in the prior art, expanding the error correction range, timely and effectively finding and optimizing the communication fault or error existing at the terminal side and the like, and further improving the overall stability of the communication network.
Drawings
FIG. 1 is a schematic structural diagram of a communication network according to an embodiment;
FIG. 2 is a flow diagram of a terminal requesting NWDAF discovery in an embodiment;
fig. 3 is a flowchart of sending status data to a core network by a terminal in the embodiment;
fig. 4 is a flowchart of an NWDAF detecting whether a network element is a suspected faulty network element in an embodiment.
Detailed Description
The performance and error detection method in the communication network in this embodiment may be applied to the communication network shown in fig. 1. The terminal establishes connection with the core network through the base station, and the terminal and the core network can perform business processes such as registration, session establishment, data transmission, service switching, service request and the like. In particular, the core network may be a core network of a 5G mobile communication network or a more advanced core network.
Referring to fig. 1, the terminal records various state data interacted with the core network in different service flow processes performed with the core network each time, either autonomously or under an instruction of the core network. The state data includes contents such as a normal state log, an error state log, and a comparison result between the normal state log and the error state log, which are generated in the service flow by the terminal, and analysis results such as a service success probability, a current access network performance, and the like can be obtained through the state data of the contents. The terminal can divide the state data of the services according to the tracking area and the slice network where the corresponding service is executed, store the state data in the local of the terminal, and report the stored state data to the core network after a certain time. Therefore, by parsing the status data, it is possible to extract a log of which service type the terminal records, and to which tracking area and network slice the terminal belongs when performing the service of the type.
In this embodiment, the core Network includes Network elements such as an AMF (Access and Mobility Management Function), an NRF (Network security Function), and an NWDAF (Network Data analysis Function). Referring to fig. 2, when the terminal registers with the 5G core network and the time for the terminal to submit status data has come, the terminal may transmit the status data to the core network. Referring to fig. 2, before the terminal sends status data to the core network, the terminal may send a request for searching for an available NWDAF network element to an AMF in the core network through an NAS message, at this time, the AMF may send a discovery request message to an NRF in the core network, if the NRF discovers that a corresponding NWDAF exists, the NRF may return a discovery result message to the AMF, where the discovery result message carries location information of the corresponding NWDAF, and then the AMF returns a successful request result to the terminal, indicating that the terminal may upload corresponding status data; if the NRF does not find the NWDAF, an error finding result is returned to the AMF, the AMF also indicates that the corresponding NWDAF is not found in a request result returned to the terminal, at the moment, the terminal continuously stores the state data in the local, and sends a message of requesting the corresponding NWDAF to the network when the next time point of sending the state data arrives.
Referring to fig. 3, when the core network discovers an available NWDAF and informs the terminal, the terminal starts submitting collected status data interacting with the core network to the AMF through NAS messages. After receiving the data sent by the terminal, the AMF sends the data to the previously discovered NWDAF network element, if the NWDAF network element successfully receives the state data, the receiving success message is carried in the returned receiving response message, the AMF also returns the receiving success message to the terminal, and after receiving the success message, the terminal deletes the stored state data; if so; and if the NWDAF network element fails to receive the status data successfully, returning a reception failure message. If the terminal receives the receiving failure message, the terminal tries to submit the data to the AMF for two times, if the three submissions fail, the terminal still stores the state data until the next time point of submitting the state data is reached. After a certain time interval, if the terminal is still accessed to the current AMF and the 5G core network, the terminal can directly submit the state data interacted with the core network without finding available NWDAF through NRF.
After receiving the status data, the NWDAF in the core network analyzes the status data, and can extract a log of which service type is recorded by the terminal, and which tracking area and network slice the terminal belongs to when performing the service of the type. The NWDAF determines whether the status data reflects the existence of performance defects or errors of the interaction between the terminal and the core network or problems in the aspect of communication links and the like by analyzing the status data, if so, the core network records the corresponding relationship between the performance defects or errors and the tracking areas, the network slices and the service types to which the status data belongs, for example, the core network can record a certain tracking area, a certain network slice and a certain service type at a certain time through the format of a log or a data table, and can count the accumulated error number of each tracking area, network slice and service type according to the history.
In this embodiment, the NWDAF may set a quantity threshold corresponding to each tracking area, each network slice, and each service type, and if the accumulated quantity of performance defects or errors of a certain tracking area in a period of time is greater than the quantity threshold corresponding to the tracking area, determine the tracking area as a suspected fault tracking area; if the accumulated number of the performance defects or errors of a certain network slice in a period of time is larger than the corresponding number threshold, determining the network slice as a suspected fault network slice; and if the accumulated number of the performance defects or the errors of a certain service type in a period of time is larger than the corresponding number threshold, determining the service type as a suspected fault service type.
In this embodiment, referring to fig. 4, the NWDAF may detect whether each network element in the core network is a suspected faulty network element through the NRF. Specifically, if the NWDAF detects through the NRF that a certain network element has at least two of the following cases, the NWDAF may determine the network element as a suspected faulty network element: the network element is connected with a terminal belonging to a suspected fault tracking area, the network element is connected with a terminal belonging to a suspected fault network slice, and the network element provides services of suspected fault service types for the terminal. For example, if a network element is connected to a terminal belonging to a suspected fault tracking area and also connected to a terminal belonging to a suspected fault network slice, the network element may be determined as a suspected fault network element; if a network element is connected with a terminal belonging to a suspected fault tracking area, connected with a terminal belonging to a suspected fault network slice, and provided with services of suspected fault service types, the network element can be determined as a suspected fault network element.
In this embodiment, that one network element belongs to a suspected faulty network element means that the network element has a problem discovered from the terminal side, and this problem may be that the network element or other network elements cannot be discovered through the self-error correction mechanism. And the NWDAF reports the information of the suspected fault network element to a network management platform for further troubleshooting and other processing.
The performance and error detection method in the communication network in the present embodiment may be performed by writing a computer program for performing the performance and error detection method in the communication network in the present embodiment, writing the computer program into a computer device or a storage medium, and when the computer program is read and executed.
In the performance and error detection method in the communication network in this embodiment, the terminal collects and uploads the state data to the core network, and the state data includes the tracking area, the network slice, and the service type to which the terminal belongs, so that the core network can analyze the performance defect or error from the state data, thereby breaking through the limitation that in the prior art, the network element-level self-error correction is performed only from the network side, expanding the error correction range, and enabling communication faults or errors existing at the terminal side and the like to be timely and effectively discovered and optimized, thereby improving the overall stability of the communication network.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this embodiment, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language ("e.g.," such as "or the like") provided with this embodiment is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, operations of processes described in this embodiment can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described in this embodiment (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described in the present embodiment to convert the input data to generate output data that is stored to a non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (8)
1. A method for performance and error detection in a communication network, comprising:
the core network acquires state data; the state data is reported to the core network by the terminal at regular time or irregular time;
the core network determines a tracking area, a network slice and a service type to which the state data belongs;
when the core network analyzes the performance defect or error from the state data, the core network records the corresponding relation between the performance defect or error and the tracking area, the network slice and the service type which the state data belongs to;
the core network counts performance defects or errors corresponding to each tracking area, each network slice and each service type within a period of time, and carries out fault positioning according to the statistical result;
the core network counts performance defects or errors corresponding to each tracking area, each network slice and each service type within a period of time, and carries out fault location according to the statistical result, wherein the fault location comprises the following steps:
determining suspected fault tracking areas, suspected fault network slices and suspected fault service types according to the corresponding performance defects or error accumulated quantity of each tracking area, each network slice and each service type in a period of time;
determining a suspected fault network element; the suspected fault network element is a network element in the core network, and the suspected fault network element has at least two of the following conditions: connecting a terminal belonging to a certain suspected fault tracking area, connecting a terminal belonging to a certain suspected fault network slice, and providing services of suspected fault service types for the terminal;
and reporting the information of the suspected fault network element to a network management platform.
2. The method of claim 1, wherein the status data is collected by a terminal during a service session with the core network.
3. The method according to claim 2, wherein the status data comprises a normal log, an error log and a comparison result between the normal log and the error log generated by the terminal in the service process.
4. A core network, wherein the core network is connected to a terminal, and the terminal reports status data to the core network periodically or aperiodically, the core network comprising:
an AMF network element; the AMF network element is used for receiving the state data;
the NRF unit is used for searching the NWDAF network element matched with the state data;
an NWDAF network element; the NWDAF network element is configured to determine a tracking area, a network slice, and a service type to which the status data belongs, and when the NWDAF network element analyzes a performance defect or an error from the status data, the NWDAF network element records a correspondence between the performance defect or the error and the tracking area, the network slice, and the service type to which the status data belongs; the NWDAF network element counts performance defects or errors corresponding to each tracking area, each network slice and each service type within a period of time, and carries out fault location according to the counting result;
the NWDAF network element counts performance defects or errors corresponding to each tracking area, each network slice and each service type in a period of time, and carries out fault location according to the statistical result, and the method comprises the following steps:
determining suspected fault tracking areas, suspected fault network slices and suspected fault service types according to the corresponding performance defects or error accumulated quantity of each tracking area, each network slice and each service type in a period of time;
determining a suspected fault network element; the suspected fault network element is a network element in the core network, and the suspected fault network element has at least two of the following conditions: connecting a terminal belonging to a certain suspected fault tracking area, connecting a terminal belonging to a certain suspected fault network slice, and providing services of suspected fault service types for the terminal;
and reporting the information of the suspected fault network element to a network management platform.
5. The core network of claim 4, wherein the status data is collected by a terminal during a service process with the core network.
6. The core network of claim 5, wherein the status data includes a normal log, an error log and a comparison result between the normal log and the error log generated by the terminal in the service flow.
7. A computer arrangement comprising a memory for storing at least one program and a processor for loading the at least one program to perform the method of performance and error detection in a communication network according to any of claims 1-3.
8. A storage medium having stored therein a program executable by a processor, wherein the program executable by the processor is adapted to perform a method of performance and error detection in a communication network according to any of claims 1-3 when executed by the processor.
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