CN115474189B - Notification data acquisition method, communication core network, computer device and storage medium - Google Patents
Notification data acquisition method, communication core network, computer device and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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Abstract
The invention discloses a notification data acquisition method, a communication core network, a computer device and a storage medium, wherein the notification data acquisition method comprises the steps of finding an SMF group, sending a first subscription request to the SMF group, triggering the SMF group to determine a UPF group for providing service for a user terminal according to the first subscription request, triggering the SMF group to send a second subscription request to the UPF group, acquiring data collection notification information sent by the UPF group, and the like. When the NWDAF network element needs to collect data, the invention only needs to receive the data from the SMF group and/or the UPF group, and does not need to receive the data from each SMF network element and UPF network element respectively, thereby reducing the number of network elements faced when the NWDAF network element sends or receives the data, reducing the transmission process of request and notification data, reducing the occupation of network resources and being beneficial to improving the overall efficiency and communication quality of the communication network. The invention is widely applied to the technical field of communication.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a notification data collection method, a communication core network, a computer device, and a storage medium.
Background
Communication core networks, represented by 5G core networks, often involve the following processes in operation: in order to obtain data required by the network data analysis service, the NWDAF (Network Data Analytics Function, network data analysis function) network element or network element with similar function requests subscription data from the SMF (Session Management Function ) network element or network element with similar function, the SMF network element selects a UPF (User Plane Function ) network element, requests subscription data from the UPF network element, and the UPF network element collects data from a data source such as a User Equipment (UE) and sends the data to the NWDAF network element to meet the data acquisition requirement of the NWDAF network element for providing the network data analysis service.
In practical application, referring to fig. 1, NWDAF network elements generally need to face multiple SMF network elements and multiple UPF network elements, and UPF network elements also face multiple user terminals, so that subscription needs to be requested multiple times from NWDAF network elements, and the UPF network elements also need to notify NWDAF network elements multiple times after collecting data, which causes higher resource occupation on the whole communication system, and under the condition of limited total resources, the quality of normal communication is easily affected.
Disclosure of Invention
Aiming at the technical problems of high resource occupation, communication quality reduction and the like caused by the need of subscription and notification for multiple requests in the current notification data acquisition method, the invention aims to provide a notification data acquisition method, a communication core network, a computer device and a storage medium.
In one aspect, an embodiment of the present invention includes a notification data collection method, including:
discovering the SMF group; the SMF group comprises at least one SMF network element, and each SMF network element in the SMF group shares data;
sending a first subscription request to the SMF group; the first subscription request includes parameters for determining a UPF network element;
triggering the SMF group to determine a UPF group for providing service for the user terminal according to the first subscription request; the UPF group comprises a plurality of UPF network elements, and each UPF network element in the UPF group shares data;
triggering the SMF group to send a second subscription request to the UPF group; the second subscription request includes parameters for determining data to be collected;
acquiring data collection notification information sent by the UPF group; the data collection notification information is acquired by the UPF group in response to the second subscription request.
Further, the discovery SMF group includes:
sending a discovery request to an NRF network element;
triggering the NRF network element to discover a plurality of SMF network elements according to the discovery request;
and forming the SMF group by the discovered plurality of SMF network elements.
Further, the first subscription request includes an event ID, DNN, S-NSSAI, AOI, application IP address, APP ID, DNAI of UPF event disclosure.
Further, the second subscription request includes a PDU session ID, an event ID indicating the type of data that needs to be collected, an NWAF IP address, DNN, S-NSSAI, AOI, an application IP address, an APP ID, DNAI.
Further, the triggering the SMF group to determine, according to the first subscription request, a UPF group that provides services to a user terminal, includes:
triggering each SMF network element in the SMF group, and determining UPF network elements for providing services for the user terminal according to the first subscription request respectively;
and forming the UPF group by using the UPF network elements respectively determined by all the SMF network elements in the SMF group.
Further, the obtaining the data collection notification information sent by the UPF group includes:
triggering each UPF network element in the UPF group, and acquiring notification messages according to the second subscription request and the served user terminal respectively;
triggering one UPF network element in the UPF group, integrating each notification message into the data collection notification information, and sending the data collection notification information.
Further, the acquiring the data collection notification information sent by the UPF group further includes:
triggering one SMF network element in the SMF group, receiving the data collection notification information, and acquiring subscription information generated by each SMF network element in the SMF group;
triggering one SMF network element in the SMF group, integrating each piece of subscription information into the data collection notification information, and sending the data collection notification information to the NWDAF network element.
In another aspect, an embodiment of the present invention further includes a communication core network, where the communication core network includes:
at least one SMF network element;
a plurality of UPF network elements;
NWDAF network elements; the NWDAF network element is configured to discover an SMF group, where the SMF group includes at least one SMF network element, send a first subscription request to the SMF group, trigger the SMF group to determine, according to the first subscription request, a UPF group that provides services to a user terminal, where the first subscription request includes parameters for determining the UPF network element, and the UPF group includes a plurality of UPF network elements, and trigger the SMF group to send a second subscription request to the UPF group; the second subscription request comprises parameters for determining data to be collected, and data collection notification information sent by the UPF group is obtained, wherein the data collection notification information is acquired by the UPF group in response to the second subscription request.
In another aspect, an embodiment of the present invention further includes 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 notification data collection method of the embodiment.
In another aspect, the embodiment of the present invention further includes a storage medium in which a processor-executable program is stored, which when executed by a processor, is configured to perform the notification data collection method of the embodiment.
The beneficial effects of the invention are as follows: according to the notification data acquisition method in the embodiment, a plurality of SMF network elements are organized into SMF groups, a plurality of UPF network elements are organized into UPF groups, when the NWDAF network elements need to acquire data, only necessary requests are needed to be sent to the SMF groups and/or the UPF groups, the requests are not needed to be sent to each SMF network element and/or each UPF network element respectively, when the acquired data is received, only the data is needed to be received from the SMF groups and/or each UPF network element, and the data is not needed to be received from each SMF network element and each UPF network element respectively, so that the number of network elements faced when the NWDAF network elements send or receive the data is reduced, the transmission process of the requests and the notification data is reduced, the occupation of network resources is reduced, and the whole efficiency and the communication quality of a communication network are improved.
Drawings
Fig. 1 is a schematic diagram of NWDAF network element data acquisition in the related art;
FIG. 2 is a schematic diagram illustrating steps of a notification data collection method according to an embodiment;
FIG. 3 is a flow chart of a notification data collection method in an embodiment;
fig. 4 is a schematic diagram of NWDAF network element data acquisition in an embodiment.
Detailed Description
In this embodiment, referring to fig. 2, the notification data acquisition method includes the following steps:
s1, discovering an SMF group; the SMF group comprises at least one SMF network element, and each SMF network element in the SMF group shares data;
s2, sending a first subscription request to the SMF group; the first subscription request includes parameters for determining a UPF network element;
s3, triggering the SMF group to determine a UPF group for providing service for the user terminal according to the first subscription request; the UPF group comprises a plurality of UPF network elements, and each UPF network element in the UPF group shares data;
s4, triggering the SMF group to send a second subscription request to the UPF group; the second subscription request includes parameters for determining data to be collected;
s5, acquiring data collection notification information sent by the UPF group; the data collection notification information is collected by the UPF group in response to the second subscription request.
In this embodiment, steps S1-S5 may be performed by NWDAF network elements in a communication core network, where the communication core network further includes NRF (Network Repository Function, network storage function) network elements, a plurality of SMF network elements, and a plurality of UPF network elements. The NWDAF network element and other network elements mentioned in this embodiment are not limited to the network element with the name under the current technical standard, and may be applied to the network element with other names and functions and the function of the network element such as the NWDAF network element that needs to be used in this embodiment, because the NWDAF, SMF and other names and combinations of network element functions may possibly change due to the development of the communication technology or the change of the technical standard.
The flow of steps S1-S3 is shown in FIG. 3.
The NWDAF network element may specifically perform the following steps when performing step S1, i.e. the step of discovering the SMF group:
s101, sending a discovery request to an NRF network element;
s102, triggering an NRF network element to discover a plurality of SMF network elements according to a discovery request;
s103, forming an SMF group by the discovered plurality of SMF network elements.
The principle of performing steps S101-S103 is that: in case the user terminal UE has not yet determined, which may be any terminal device accessing the communication core network, the way of discovering the SMF network element is different from in case the user terminal UE has determined to be a single terminal device; the present embodiment may deal with the former case, that is, in the case where the UE has not been determined, and may be any terminal device that has access to the communication core network, the NWDAF network element may classify the UE according to the characteristics of the UE, for example, for any plurality of UEs, if all of the UEs have the following characteristics related to the analytical ID: A. connect to the same application server IP address; B. to the same S-NSSAI; C. connected to the same DN; the user terminals UE may be classified into the same class, and the SMF network elements providing session services for the user terminals UE of this class may also be classified into the same class, and the NWDAF network element may request the NRF network element to discover the same kind of SMF network elements by sending a discovery request to the NRF network element, and join the same kind of SMF network elements discovered by the NRF network element into the same SMF group.
By performing steps S101-S103, the NWDAF network element may discover the SMF group through the NRF network element. As can be seen from the principle of steps S101-S103, the NRF network element may find a plurality of SMF groups, and the notification data collection method of the present embodiment has the same principle as that of processing a plurality of SMF groups, and in the present embodiment, one of the SMF groups is taken as an example.
By performing step S1, the found SMF group contains at least one SMF network element, which may be numbered 1-n, the SMF group being denoted as SMF1-n in fig. 3.
In this embodiment, each SMF network element in the SMF group shares data, specifically, each SMF network element in the SMF group may select to share all data, or may select to share specific data, and in the case of selecting to share all data, any SMF network element shares any type of obtained data to other SMF network elements in the SMF group; in the case of selecting to share specific data, any SMF network element shares the obtained specific type of data (e.g., the first subscription request and the data collection notification information in this embodiment) to other SMF network elements in the SMF group. Specifically, the shared data may be that any SMF network element sends the obtained data to other SMF network elements in the SMF group, or that any SMF network element after the obtained data, once does not send the obtained data directly to other SMF network elements, and sends the obtained data to other SMF network elements only when the other SMF network elements request.
By sharing data among SMF network elements in the SMF group, on one hand, greater flexibility can be provided for connection of the NWDAF network elements, time delay when the NWDAF network elements communicate with the SMF group is reduced, and on the other hand, the operation of the SMF group is prevented from being influenced by failure of individual SMF network elements, so that the whole SMF group is kept in a stable state.
In step S2, the NWDAF network element generates a first subscription request for subscribing to the data to be obtained, and sends the first subscription request to the SMF group. Specifically, the NWDAF network element may send the first subscription request to one or more SMF network elements in the SMF group.
In this embodiment, the first subscription request may specifically be in the form of an nsmf_eventExposure_subscore request.
In this embodiment, the first subscription request includes a parameter for determining the UPF network element, for example, an event ID disclosed by a UPF event, from which NWDAF network elements need to subscribe to data from which UPF network elements can be determined. The first subscription request may also include parameters of DNN, S-NSSAI, AOI, application IP address, APP ID, DNAI, etc.
When the NWDAF network element performs step S3, that is, triggers the SMF group to determine, according to the first subscription request, a UPF group for providing services to the user terminal, the following steps may be specifically performed:
s301, triggering each SMF network element in the SMF group, and determining UPF network elements for providing services for the user terminal according to the first subscription request;
s302, forming a UPF group by using UPF network elements determined by all SMF network elements in the SMF group.
In step S301, the NWDAF network element may send a first subscription request to one SMF network element in the SMF group, where the SMF network element that receives the first subscription request shares the first subscription request in the SMF group, and each SMF network element in the SMF group receives the first subscription request, and searches for a corresponding UPF network element according to the first subscription request.
In step S302, each SMF network element reports the found UPF network element to one SMF network element and/or NWDAF network element in the SMF group, and numbers all UPF network elements found by all SMF network elements to be 1-n, and in fig. 3, the SMF group is denoted as UPF1-n.
In this embodiment, each UPF network element in the UPF group shares data, specifically, each UPF network element in the UPF group may select to share all data, or may select to share specific data, and in the case of selecting to share all data, any one UPF network element shares any type of obtained data to other UPF network elements in the UPF group; in the case of selecting to share specific data, any UPF network element shares the obtained specific type of data (e.g., the second subscription request and the data collection notification information in this embodiment) to other UPF network elements within the UPF group. Specifically, the shared data may be that any one of the UPF network elements sends the obtained data to other UPF network elements in the UPF group, or that any one of the UPF network elements does not send the obtained data to other UPF network elements directly after the obtained data, and sends the obtained data to other UPF network elements only when the other UPF network elements request the obtained data.
By sharing data among the UPF network elements in the UPF group, on one hand, greater flexibility can be provided for connection of the SMF network elements, time delay when the SMF network elements communicate with the UPF group is reduced, and on the other hand, the phenomenon that the work of the UPF group is influenced due to failure of individual UPF network elements can be avoided, so that the UPF group is integrally kept in a stable state.
In step 4, the NWDAF network element triggers the SMF group to generate a second subscription request through the first subscription request sent in step S2 or the trigger information sent in addition.
In this embodiment, the second subscription request may specifically be in the form of a nupf_eventExposure_subscore request.
In this embodiment, the second subscription request includes a parameter for determining data to be collected, for example, an event ID indicating a type of data to be collected, from which it can be determined which data the UPF network element needs to collect. The second subscription request may further include parameters such as PDU session ID, NWDAF IP address, DNN, S-nsai, AOI, application IP address, APP ID, DNAI, etc., where the parameters such as DNN, S-nsai, AOI, application IP address, APP ID, DNAI, etc. may be extracted from the first subscription request by the SMF network element.
In step S4, the NWDAF network element triggers the SMF group (one or more SMF network elements therein) to send a second subscription request to the UPF group through the first subscription request sent in step S2 or the trigger information that is otherwise sent. Specifically, the SMF group may send a second subscription request to one or more UPF network elements in the UPF group.
When the NWDAF network element performs step S5, that is, the step of acquiring the data collection notification information sent by the UPF group, the following steps may be specifically performed:
s501, triggering each UPF network element in the UPF group, and acquiring notification messages according to the served user terminals according to the second subscription request respectively;
s502, triggering one UPF network element in the UPF group, integrating each notification message into data collection notification information, and sending the data collection notification information.
In step S501, each UPF network element in the UPF group may be triggered by the second subscription request or trigger information sent by the NWDAF network element or the SMF network element separately, and generate a notification message according to the served user terminal according to the second subscription request. Specifically, each UPF network element may collect data from a user terminal to which it is connected, and package the collected data to generate a notification message.
In step S502, each UPF network element in the UPF group may continue to step S501 without additional triggering, integrating each notification message into data collection notification information. Specifically, each UPF network element in the UPF group may share the notification message acquired by each of the UPF network elements to one of the UPF network elements, and the UPF network element packages all notification messages into data collection notification information.
After performing steps S501-S502, the data collection notification information may be directly sent to the NWDAF network element by the UPF group (one or more UPF network elements therein), so that the NWDAF network element directly receives the data collection notification information, thereby performing the network data analysis service. The notification messages acquired by the plurality of UPF network elements are integrated into one piece of data collection notification information, the plurality of UPF network elements are not required to respectively send the notification messages, occupation of network resources is reduced, the network resources can be used for necessary communication, and communication quality is guaranteed.
After the execution of steps S501-S502, the following steps may also be continued:
s503, triggering one SMF network element in the SMF group, receiving data collection notification information, and acquiring subscription information generated by each SMF network element in the SMF group;
s504, triggering one SMF network element in the SMF group, integrating each subscription information into data collection notification information, and sending the data collection notification information to the NWDAF network element.
In step S503, the UPF group (one or more UPF network elements therein) may send the data collection notification information to the SMF group, and the SMF group (one or more SMF network elements therein) may acquire subscription information generated by each SMF network element in the SMF group under the triggering of the data collection notification information. The subscription information generated by the SMF network element is information sent to the NWDAF network element by the SMF network element in response to the data subscription of the NWDAF network element, and the subscription information generated by the SMF network element may have no association relationship with the data collection notification information sent by the UPF group.
In step S504, the SMF network elements in the SMF group may continue to step S503 without additional triggering, and integrate subscription information of each SMF network element into the data collection notification information, where the new data collection notification information includes all information of the original data collection notification information and subscription information of each SMF network element. The SMF group (one or more of the SMF network elements) sends new data collection notification information to the NWDAF network element.
After executing steps S501-S504, the NWDAF network element may obtain the data collection notification information from the SMF group, and may analyze the notification information collected by each UPF network element and the subscription information of each SMF network element from the data collection notification information, so that the NWDAF network element performs network data analysis service according to the notification information collected by each UPF network element, and may perform other network services according to the subscription information. The notification messages acquired by the UPF network elements and the subscription information from the SMF network elements are integrated into one piece of data collection notification information, the UPF network elements and the SMF network elements are not required to respectively send information, occupation of network resources is reduced, the network resources can be used for necessary communication, and communication quality is guaranteed.
As shown in fig. 4, in the notification data collection method in this embodiment, a plurality of SMF network elements are organized into an SMF group, and a plurality of UPF network elements are organized into a UPF group, when an NWDAF network element needs to collect data, only a necessary request needs to be sent to the SMF group and/or the UPF group, and no request needs to be sent to each SMF network element and/or the UPF network element, and when the collected data is received, only data needs to be received from the SMF group and/or the UPF group, and no data needs to be received from each SMF network element and the UPF network element, thereby reducing the number of network elements faced when the NWDAF network element sends or receives the data, reducing the transmission process of the request and the notification data, reducing occupation of network resources, and being beneficial to improving the overall efficiency and communication quality of the communication network.
In this embodiment, NWDAF network elements capable of executing steps S1 to S5 and SMF network elements and UPF network elements in steps S1 to S5 may form a communication core network, and the notification data collection method in this embodiment may be applied to such a communication core network, and based on the principle of the notification data collection method, when the communication core network operates, the same technical effects as those of the notification data collection method may be achieved.
The notification data collection method in the present embodiment may be executed by writing a computer program that executes the notification data collection method in the present embodiment, writing the computer program into a computer device or a storage medium, and when the computer program is read out to run, thereby achieving the same technical effects as the notification data collection method in the embodiment.
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 or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure 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 also be termed a second element, and, similarly, a second element could also 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") provided herein, 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 appreciated that embodiments of the invention may be implemented or realized 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 a computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, in accordance with the methods and drawings described in the specific embodiments. 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.
Furthermore, the operations of the processes described in the present embodiments may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes (or variations and/or combinations thereof) described in this embodiment may be performed under 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), by hardware, or combinations thereof, that collectively execute on one or more processors. 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 computing platform, including, but not limited to, a personal computer, mini-computer, mainframe, workstation, network or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and so forth. Aspects of the invention may be implemented 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, optical read and/or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, which when read by a computer, is operable to configure and operate the computer to perform the processes described herein. Further, the machine readable code, or portions thereof, may be transmitted over a wired or wireless network. When such media includes instructions or programs that, in conjunction with a microprocessor or other data processor, implement the steps described above, the invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media. The invention also includes the computer itself when programmed according to the methods and techniques of the present invention.
The computer program can be applied to the input data to perform the functions described in this embodiment, thereby converting the input data to generate output data that is stored to the 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 specific visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.
Claims (9)
1. The notification data acquisition method is applied to an NWDAF network element and is characterized by comprising the following steps of:
discovering the SMF group; the SMF group comprises at least one SMF network element, and each SMF network element in the SMF group shares data;
sending a first subscription request to one or more SMF network elements in the SMF groups, so as to trigger the SMF groups to determine a UPF group for providing services for user terminals according to the first subscription request, and sharing the first subscription request in the SMF groups by the SMF network elements receiving the first subscription request; the first subscription request includes parameters for determining a UPF network element; the UPF group comprises a plurality of UPF network elements, and each UPF network element in the UPF group shares data;
triggering the SMF group to send a second subscription request to one or more UPF network elements in the UPF group, and sharing the second subscription request in the UPF group by the UPF network elements receiving the second subscription request; the second subscription request includes parameters for determining data to be collected;
acquiring data collection notification information sent by the UPF group; the data collection notification information is acquired by the UPF group in response to the second subscription request;
each of the SMF network elements within the SMF group shares data, comprising: any SMF network element shares any type of obtained data with other SMF network elements in the SMF group, or any SMF network element shares the obtained specific type of data with other SMF network elements in the SMF group;
each of the UPF network elements within the UPF group shares data, including: any one UPF network element shares any type of obtained data to other UPF network elements in the UPF group, or any UPF network element shares the obtained specific type of data to other UPF network elements in the UPF group;
the obtaining the data collection notification information sent by the UPF group includes:
triggering each UPF network element in the UPF group, respectively acquiring notification messages according to the second subscription request and the served user terminals, and sharing the acquired notification messages to one UPF network element in the UPF group;
and integrating each notification message shared by other UPF network elements into the data collection notification information by one UPF network element in the UPF group, and sending the data collection notification information.
2. The notification data collection method of claim 1, wherein said discovering SMF groups comprises:
sending a discovery request to an NRF network element;
triggering the NRF network element to discover a plurality of SMF network elements according to the discovery request;
and forming the SMF group by the discovered plurality of SMF network elements.
3. The notification data collection method of claim 1, wherein said first subscription request comprises a UPF event published event ID, DNN, S-nsai, AOI, application IP address, APP ID or DNAI.
4. The notification data collection method of claim 1, wherein said second subscription request comprises a PDU session ID, an event ID indicating the type of data that needs to be collected, an NWDAF IP address, DNN, S-nsai, AOI, an application IP address, APP ID or DNAI.
5. The notification data collection method of claim 1, wherein said triggering the SMF group to determine a UPF group providing services to a user terminal according to the first subscription request comprises:
triggering each SMF network element in the SMF group, and determining UPF network elements for providing services for the user terminal according to the first subscription request respectively;
and forming the UPF group by using the UPF network elements respectively determined by all the SMF network elements in the SMF group.
6. The notification data collection method of claim 1, wherein said obtaining the data collection notification information sent by the UPF group further comprises:
triggering one of the SMF network elements in the SMF group by one or more of the UPF network elements in the UPF group, receiving the data collection notification information, and acquiring subscription information generated by each of the SMF network elements in the SMF group;
integrating each subscription information into the data collection notification information by one SMF network element in the SMF group, and sending the data collection notification information to the NWDAF network element.
7. A communication core network, the communication core network comprising:
at least one SMF network element;
a plurality of UPF network elements;
NWDAF network elements; the NWDAF network element is configured to perform the following steps:
discovering the SMF group; the SMF group comprises at least one SMF network element, and each SMF network element in the SMF group shares data;
sending a first subscription request to one or more SMF network elements in the SMF groups, so as to trigger the SMF groups to determine a UPF group for providing services for user terminals according to the first subscription request, and sharing the first subscription request in the SMF groups by the SMF network elements receiving the first subscription request; the first subscription request includes parameters for determining a UPF network element; the UPF group comprises a plurality of UPF network elements, and each UPF network element in the UPF group shares data;
triggering the SMF group to send a second subscription request to one or more UPF network elements in the UPF group, and sharing the second subscription request in the UPF group by the UPF network elements receiving the second subscription request; the second subscription request includes parameters for determining data to be collected;
acquiring data collection notification information sent by the UPF group; the data collection notification information is acquired by the UPF group in response to the second subscription request;
wherein each of the SMF network elements within the SMF group shares data, comprising: any SMF network element shares any type of obtained data with other SMF network elements in the SMF group, or any SMF network element shares the obtained specific type of data with other SMF network elements in the SMF group;
wherein each of the UPF network elements within the UPF group shares data, comprising: any one UPF network element shares any type of obtained data to other UPF network elements in the UPF group, or any UPF network element shares the obtained specific type of data to other UPF network elements in the UPF group;
the obtaining the data collection notification information sent by the UPF group includes:
triggering each UPF network element in the UPF group, respectively acquiring notification messages according to the second subscription request and the served user terminals, and sharing the acquired notification messages to one UPF network element in the UPF group;
and integrating each notification message shared by other UPF network elements into the data collection notification information by one UPF network element in the UPF group, and sending the data collection notification information.
8. A computer apparatus comprising a memory for storing at least one program and a processor for loading the at least one program to perform the notification data collection method of any of claims 1-6.
9. A computer-readable storage medium in which a processor-executable program is stored, characterized in that the processor-executable program is for performing the notification data collection method of any of claims 1-6 when being executed by a processor.
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