CN116261153A - Data caching method, network element, electronic equipment and storage medium - Google Patents

Data caching method, network element, electronic equipment and storage medium Download PDF

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Publication number
CN116261153A
CN116261153A CN202111460547.6A CN202111460547A CN116261153A CN 116261153 A CN116261153 A CN 116261153A CN 202111460547 A CN202111460547 A CN 202111460547A CN 116261153 A CN116261153 A CN 116261153A
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dynamic information
terminal
network element
request
caching
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唐陈峰
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ZTE Corp
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ZTE Corp
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Priority to CN202111460547.6A priority Critical patent/CN116261153A/en
Priority to PCT/CN2022/128482 priority patent/WO2023098368A1/en
Publication of CN116261153A publication Critical patent/CN116261153A/en
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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
    • H04L41/04—Network management architectures or arrangements
    • H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application relates to the technical field of communication and discloses a data caching method, a network element, electronic equipment and a storage medium, wherein the method comprises the following steps: the method is applied to a unified data management network element, and under the condition that the terminal is successfully accessed, a dynamic information cache request is sent to the unified data management network element for the unified data management network element to cache the dynamic information, wherein the dynamic information cache request comprises the terminal dynamic information; after restarting, sending a dynamic information request to the unified data management network element; and receiving terminal dynamic information issued by the unified data management network element, and recovering management and control of the terminal according to the terminal dynamic information. The unified data management network element is utilized to buffer the dynamic information of the terminal, and after the preset functional network element is restarted, the dynamic information of the terminal is sent to the preset functional network element, so that disaster recovery of the functional network element is realized on the basis that newly added resources are not required to be additionally deployed and the cost of operators is increased, and further, the service experience of users is ensured.

Description

Data caching method, network element, electronic equipment and storage medium
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a data caching method, a network element, electronic equipment and a storage medium.
Background
With the development and progress of communication technology, the third generation partnership project (3rd Generation Partnership Project,3GPP) introduced a fifth generation communication system (the fifth generation, 5G) as a fifth generation mobile communication network, and the 5G network communication technology is a very important new communication technology, which has a faster transmission rate and supports more wireless mobile communication projects. Currently, in a 5G Network, after a terminal device (UE) is online, a functional Network element (NF) caches and maintains dynamic information (including a subscriber permanent identifier SUPI, a general public User identifier GPSI, terminal capability information, subscription information, connection status information, location information, session information, etc.) of the UE for use in a subsequent service processing procedure. For some private networks, such as electricity meter networks, terminal device liveness is not frequent, for example: interaction with the functional network element is only once for one to two months. Once the functional network element is restarted for some reasons, the dynamic information of the terminal is lost, and then the terminal equipment is in a disconnection state, the functional network element cannot judge whether the terminal equipment is normal or not, and cannot maintain and manage the terminal equipment to ensure the continuity of service, so that the service experience of a user is greatly reduced.
In order to solve this problem, in combination with the analysis result of the 3GPP protocol, the current common means is to configure an AMF SET for a mobile access management network element (Access And Mobility Management Function, AMF) or deploy an unstructured data storage network element (Unstructured Data Storage Network Function, UDSF) to store dynamic information of a terminal device, which greatly raises the cost of an operator and the management and maintenance difficulty.
Disclosure of Invention
The main purpose of the embodiment of the application is to provide a data caching method, a network element, electronic equipment and a storage medium, and aims to ensure that a functional network element can timely recover management and control of terminal equipment after restarting on the basis of avoiding rising of cost of operators and management and maintenance difficulty.
In order to achieve the above objective, an embodiment of the present application provides a data caching method, applied to a unified data management network element, including: receiving a dynamic information cache request of a network element with a preset function, wherein the dynamic information cache request comprises terminal dynamic information; caching the dynamic information of the terminal according to the dynamic information caching request; and after receiving a dynamic information request initiated by the preset functional network element after restarting, sending the terminal dynamic information to the preset functional network element, so that the preset functional network element can recover the control of the terminal according to the terminal dynamic information.
In order to achieve the above objective, an embodiment of the present application further provides a data caching method, applied to a functional network element, where the method includes: under the condition that the terminal is successfully accessed, a dynamic information caching request is sent to a unified data management network element for the unified data management network element to cache the dynamic information, wherein the dynamic information caching request comprises the dynamic information of the terminal; after restarting, sending a dynamic information request to the unified data management network element; and receiving the terminal dynamic information issued by the unified data management network element, and recovering management and control of the terminal according to the terminal dynamic information.
To achieve the above object, an embodiment of the present application further provides a data management network element, including: the receiving module is used for receiving a dynamic information cache request of a network element with a preset function, wherein the dynamic information cache request comprises terminal dynamic information; the caching module is used for caching the dynamic information of the terminal according to the dynamic information caching request; and the response module is used for sending the terminal dynamic information to the preset functional network element after receiving the dynamic information request initiated by the preset functional network element after restarting, so that the preset functional network element can recover the management and control of the terminal.
In order to achieve the above object, an embodiment of the present application further provides a functional network element, including: the system comprises a sending module, a unified data management network element and a terminal access module, wherein the sending module is used for sending a dynamic information caching request to the unified data management network element under the condition that the terminal access is successful, so that the unified data management network element can carry out dynamic information caching, and the dynamic information caching request comprises terminal dynamic information; the request module is used for sending a dynamic information request to the unified data management network element after restarting; and the management module is used for receiving the terminal dynamic information issued by the unified data management network element and recovering the management and control of the terminal according to the terminal dynamic information.
To achieve the above object, an embodiment of the present application further provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data caching method as described above.
To achieve the above object, embodiments of the present application further provide a computer-readable storage medium storing a computer program that when executed by a processor implements the data caching method as described above.
According to the data caching method provided by the embodiment of the application, the unified data management network element receives a dynamic information caching request sent by the preset functional network element after the terminal equipment is successfully accessed, wherein the dynamic information caching request contains terminal dynamic information, caches the terminal dynamic information according to the received dynamic information caching request, and sends the cached terminal dynamic information to the preset functional network element after receiving the dynamic information request initiated after restarting the preset functional network element, so that the preset functional network element can recover management and control of the terminal according to the terminal dynamic information. The unified data management network element is utilized to carry out terminal dynamic information caching, after a dynamic information request initiated after restarting a preset functional network element is received, the terminal dynamic information is sent to the preset functional network element, the preset functional network element is used for recovering the management and control of the terminal, the influence of dynamic information loss on the terminal management and control caused by restarting the functional network element is avoided on the premise that newly-added resources are not required to be deployed, and the service experience of a user is ensured on the basis that the cost of an operator is not increased.
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One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings.
FIG. 1 is a flow chart of a data caching method in an embodiment of the present application;
fig. 2 is a schematic diagram of a terminal dynamic information caching and clearing flow in an embodiment of the present application;
fig. 3 is a schematic diagram of a process of updating dynamic information of a terminal in an embodiment of the present application;
fig. 4 is a schematic diagram of a dynamic maintenance flow of dynamic information of a terminal in an embodiment of the present application;
fig. 5 is a schematic diagram of a terminal management and control recovery flow in an embodiment of the present application;
FIG. 6 is a flow chart of a data caching method in another embodiment of the present application;
fig. 7 is a schematic structural diagram of a data management network element according to another embodiment of the present application;
fig. 8 is a schematic structural diagram of a functional network element in another embodiment of the present application;
fig. 9 is a schematic structural view of an electronic device in another embodiment of the present application.
Detailed Description
As known from the background art, in order to solve the problem that the dynamic information loss of the terminal brings about an influence on the management and control of the terminal device when the functional network element is restarted, an AMFSET set is generally configured or a UDSF is deployed for the access mobility management network element, however, such a solution can greatly raise the cost of an operator and the difficulty of management and maintenance. Therefore, how to simply and efficiently solve the problem that the influence of the terminal dynamic information loss on the terminal equipment management and control caused by restarting the functional network element is an urgent technical problem.
In order to solve the above problems, an embodiment of the present application provides a data caching method, applied to a functional network element, including: under the condition that the terminal is successfully accessed, a dynamic information caching request is sent to the unified data management network element for the unified data management network element to cache the dynamic information, wherein the dynamic information caching request comprises the dynamic information of the terminal; after restarting, sending a dynamic information request to the unified data management network element; and receiving terminal dynamic information issued by the unified data management network element, and recovering management and control of the terminal according to the terminal dynamic information.
According to the data caching method provided by the embodiment of the application, the unified data management network element receives a dynamic information caching request sent by the preset functional network element after the terminal equipment is successfully accessed, wherein the dynamic information caching request contains terminal dynamic information, caches the terminal dynamic information according to the received dynamic information caching request, and sends the cached terminal dynamic information to the preset functional network element after receiving the dynamic information request initiated after restarting the preset functional network element, so that the preset functional network element can recover management and control of the terminal according to the terminal dynamic information. The unified data management network element is utilized to carry out terminal dynamic information caching, after a dynamic information request initiated after restarting a preset functional network element is received, the terminal dynamic information is sent to the preset functional network element, the preset functional network element is used for recovering the management and control of the terminal, the influence of dynamic information loss on the terminal management and control caused by restarting the functional network element is avoided on the premise that newly-added resources are not required to be deployed, and the service experience of a user is ensured on the basis that the cost of an operator is not increased.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, as will be appreciated by those of ordinary skill in the art, in the various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments may be mutually combined and referred to without contradiction.
Implementation details of the data caching method described in the present application will be specifically described below in connection with specific embodiments, and the following description is provided only for convenience of understanding, and is not necessary to implement the present embodiment.
A first aspect of the embodiments of the present application relates to a data caching method, applied to a unified data management network element, and a specific flow of the data caching method refers to fig. 1, and includes at least, but is not limited to, the following steps:
step 101, receiving a dynamic information cache request of a network element with a preset function.
Specifically, after the 5G server architecture is started to be used, the preset functional network element accesses the administrated terminal device into the 5G server architecture after receiving the access request of the terminal device according to the allocated task area or task type. After the preset functional network element detects that the terminal equipment is on line, a customized service interface is used for requesting a unified data management network element to cache the dynamic information of the terminal equipment based on a specified communication protocol and grammar, and the unified data management network element (Unified Data Management, UDM) receives a dynamic information cache request of the preset functional network element, wherein the dynamic information cache request comprises the dynamic information of the terminal.
It should be noted that the dynamic information cache request received by the unified data management network element may further include a user permanent identifier corresponding to the terminal device, a network element identifier of a preset functional network element, and the like, which are used for distinguishing the functional network element corresponding to the terminal dynamic information from the identification information of the terminal device, and the embodiment does not specifically limit the identification information selected in the specific application.
Step 102, according to the dynamic information caching request, the dynamic information of the terminal is cached.
Specifically, after receiving a dynamic information caching request of a preset functional network element through a server interface, the unified data management network element creates a storage address and a corresponding blank file for the terminal dynamic information according to the identification information carried in the dynamic information caching request, and then stores the terminal information with the storage into a database corresponding to the designated address or the created blank file to finish caching the terminal dynamic information. The unified data management network element is utilized to store the terminal dynamic information, so that the safe storage of the terminal dynamic information is realized on the basis that no additional network element or database is required to be deployed, and the safety and reliability of the data are ensured.
For example, the preset functional network element is an AMF, after receiving the dynamic information caching request and related data transmitted from the AMF through the preset server port, the unified data management network element UDM allocates a corresponding storage address for the terminal dynamic information in the local database according to the AMF identifier in the dynamic information caching request and the user permanent identifier corresponding to the online terminal equipment, then stores the terminal dynamic information cached by the AMF request to the allocated storage address in a document form, and establishes a storage address index according to the AMF identifier and the user permanent identifier, thereby completing the storage of the terminal dynamic information.
It should be noted that the preset functional network element may be a network element with different functions, such as an access mobility management network element AMF, a session management network element SMF, a short message network element SMSF, etc., and in practical application, an appropriate functional network element may be selected according to a service type handled by the terminal, which is not limited in this embodiment.
In one example, after caching the terminal dynamic information according to the dynamic information caching request, the unified data management network element further includes: receiving a dynamic information deleting request initiated by a network element with a preset function after a terminal is offline; and deleting the dynamic information of the terminal according to the dynamic information deleting request. Specifically, the terminal can change the online state according to the service requirement and the service completion state, in order to ensure the continuity of the service, the terminal dynamic information needs to be stored in the condition that the terminal is in the online state, and after the terminal completes the service transaction and enters the offline state, the terminal dynamic information does not need to be continuously stored to avoid meaningless resource occupation. Therefore, after detecting that the terminal is offline, the preset functional network element requests the unified data management network element to delete the cached terminal dynamic information, and after receiving the dynamic information deleting request through the preset server port, the unified data management network element queries the corresponding terminal dynamic information in the local database according to the identification information in the dynamic information deleting request, for example, the network element identification and the user permanent identifier of the functional network element, deletes the queried terminal dynamic information, and releases the corresponding resource. The method comprises the steps of deleting the cached designated terminal dynamic information according to a dynamic information deleting request initiated by a network element with a preset function after the terminal is offline, avoiding the occupation of meaningless terminal dynamic information caching on resources by a flexible maintenance mode, and providing the resource utilization rate.
The process of buffering and maintaining dynamic data of a terminal according to the online state of the terminal can refer to fig. 2, which includes the following steps:
step S101: the terminal equipment (UE) initiates an initial access request to a preset functional network element (AMF).
Step S102: the AMF initiates an initial access request to a unified data management network element (UDM).
Step S103: the UDM returns a response to the AMF.
Step S104: the AMF locally caches the terminal dynamic information of the UE and returns an initial access response to the UE.
Step S105: the AMF initiates a dynamic information cache request to the UDM, wherein the dynamic information cache request carries a user permanent identifier, a network element identifier and terminal dynamic information.
Step S106: the UDM returns a save terminal dynamic information response to the AMF.
Step S107: the UE initiates a request for offline to the AMF.
Step S108: the AMF deletes the cached terminal dynamic information and returns a downlink response to the UE.
Step S109: the AMF initiates a dynamic information deletion request to the UDM, wherein the dynamic information deletion request carries a user permanent identifier and a network element identifier.
Step S110: the UDM returns a response to the AMF to delete the terminal dynamic information.
In another example, after buffering the terminal dynamic information according to the dynamic information buffering request, the unified data management network element further includes: receiving a dynamic information updating request of a network element with a preset function, wherein the dynamic information updating request comprises the latest terminal dynamic information; and updating the cached terminal dynamic information into the latest terminal dynamic information according to the dynamic information updating request. Specifically, the terminal dynamic information corresponding to the terminal equipment is continuously changed along with factors such as a service processing process, and in order to ensure accurate control and service support of the terminal equipment, the preset functional network element can timely maintain the stored terminal dynamic information. After detecting that the service processing process of the terminal equipment enters a new stage, updating the self-cached terminal dynamic information, and requesting the unified data management network element to update the terminal dynamic information. After receiving the dynamic information updating request of the preset functional network element, the unified data management network element updates the stored terminal dynamic information into the latest terminal dynamic information according to the latest terminal dynamic information and the corresponding identification information contained in the dynamic information updating request. The timeliness and the effectiveness of the terminal dynamic information stored by the unified data management network element are ensured by timely updating the cached terminal dynamic information into the latest terminal dynamic information according to the dynamic information updating request of the preset functional network element, so that the terminal dynamic information stored by the unified data management network element can be accurately restored for managing and controlling the terminal.
The process of updating the cached terminal dynamic information can refer to fig. 3, which includes the following steps:
step S201: and the terminal equipment UE initiates a subsequent process message request after entering a new service processing stage.
Step S202: the functional network element AMF updates the local terminal dynamic information.
Step S203: the AMF returns a response to the UE.
Step S204: the AMF initiates a dynamic information update request to a unified data management network element UDM, wherein the dynamic information update request carries a user permanent identifier, a network element identifier and latest terminal dynamic information.
Step S205: the UDM returns a terminal dynamic information update response to the AMF.
In another example, after buffering the terminal dynamic information according to the dynamic information buffering request, the unified data management network element further includes: setting an update time stamp for the cached terminal dynamic information, wherein the update time stamp comprises a first moment of last update of the terminal dynamic information; and deleting the dynamic information of the terminal under the condition that the time interval between the first moment and the current moment is longer than the preset duration. Specifically, after the unified data management network element stores the terminal dynamic information, in order to avoid meaningless resource occupation caused by excessive cached terminal dynamic information, the cached terminal dynamic information can be dynamically maintained regularly based on a data aging mechanism. When the unified data management network element caches or updates the terminal dynamic information, a time stamp of a cache time or an update time is marked on the cached terminal dynamic information, then a time interval between a first time corresponding to the time stamp on the cached terminal dynamic information and the current time is detected periodically, and under the condition that the time interval between the first time and the current time is detected to be longer than a first preset duration, the cached terminal dynamic information is judged to be invalid, the cached terminal dynamic information is deleted directly, and the occupied system resource is released. The terminal dynamic information cached by the unified data management network element is dynamically maintained regularly based on the data aging mechanism, so that meaningless resource occupation caused by invalid terminal dynamic information is avoided, and the resource utilization rate is provided.
Further, the unified data management network element caches the dynamic information of the terminal, including: caching terminal dynamic information and storing registration information corresponding to the terminal dynamic information; the registration information is dynamically maintained according to the access state of the terminal on a network element with a preset function; before deleting the terminal dynamic information, the method further comprises the following steps: detecting whether the dynamic information of the terminal has corresponding registration information; and deleting the terminal dynamic information under the condition that the corresponding registration information does not exist in the terminal dynamic information. Specifically, when the unified data management network element caches the terminal dynamic information, the unified data management network element caches the registered information of the terminal equipment corresponding to the cached terminal dynamic information, establishes a registered information table and dynamically maintains the registered information of the terminal according to the access state of the terminal equipment on the network element with the preset function. Before deleting the cached terminal dynamic information, the same data management network element can also detect whether the registered information corresponding to the terminal dynamic information to be deleted exists in a registered information table, and under the condition that the fact that the registered information corresponding to the terminal dynamic information does not exist is detected, the terminal equipment is judged to be off line, the terminal dynamic information is invalid, and then the determined terminal dynamic information to be deleted is deleted; under the condition that the existence of the registration information corresponding to the terminal dynamic information is detected, the terminal dynamic information to be deleted can be reserved, the duration of the terminal dynamic information which is not changed is counted, and then the terminal dynamic information is reported to an administrator for processing. By storing the corresponding registration information when the terminal dynamic information is cached, dynamically maintaining the registration information according to the access state of the terminal on the network element with the preset function, dynamically maintaining the expired terminal dynamic information according to the comparison result of the registration information table and the dynamic information table, avoiding the misdeletion of the terminal dynamic information which is not expired, and simultaneously reducing the resource occupation of the terminal dynamic information as much as possible.
The flow of dynamic maintenance of terminal dynamic data by the unified data management network element based on the data aging mechanism can refer to fig. 4, which includes the following steps:
step S301: when the unified data management network element UDM updates the cached terminal dynamic information, an update time stamp is set for the terminal dynamic information.
Step S302: the UDM sets a terminal dynamic information aging timer.
Step S303: the UDM circularly inquires the update time stamp of the terminal dynamic information, and finds out the terminal dynamic information with the corresponding time of the update time stamp being more than 24 hours (the time length is configurable) away from the current time.
Step S304: the UDM detects that the registration information corresponding to the dynamic information of the terminal is deleted.
Step S305: the UDM deletes the terminal dynamic information.
And then repeating the step S303 until the dynamic information of the terminal, of which the corresponding time of all the update time stamps is more than 24 hours away from the current time, is processed.
Step 103, after receiving the dynamic information request initiated by the preset function network element after restarting, sending terminal dynamic information to the preset function network element, so that the preset function network element resumes the management and control of the terminal according to the terminal dynamic information.
Specifically, after the preset functional network element is restarted to cause the loss of the terminal dynamic information, the terminal dynamic information is requested to the unified data management network element, and after the unified data management network element receives the dynamic information request initiated by the preset functional network element after being restarted, the terminal dynamic information requested by the preset functional network element is queried according to the identification information in the dynamic information request, such as the network element identification and the user permanent identifier. And then, transmitting terminal dynamic information to the preset functional network element through a preset service interface, so that the preset functional network element can recover the management and control of the terminal according to the terminal dynamic information.
The flowchart for recovering the preset function network element to manage the terminal may refer to fig. 5, which includes the following steps:
step S401: restarting the preset functional network element AMF.
Step S402: the unified data management network element UDM initiates a subsequent service request of the terminal device to the AMF.
Step S403: the AMF fails to locally acquire the dynamic information of the terminal, and initiates a dynamic information request to the UDM, wherein the dynamic information request carries a user permanent identifier and a network element identifier.
Step S404: the UDM returns a response of acquiring the dynamic information of the terminal to the AMF.
Step S405: the AMF initiates a subsequent service request to the terminal equipment UE.
Step S406: the UE returns a response.
Step S407: the AMF updates the local terminal dynamic information and returns a response to the UDM.
Step S408: the AMF initiates a dynamic information update request to the UDM, wherein the dynamic information update request carries a user permanent identifier, a network element identifier and the latest terminal dynamic information.
Step S409: the UDM returns an update terminal dynamic information response to the AMF.
It should be noted that after the restart of the network element with the preset function, the network side can actively initiate the subsequent service request, or after the terminal device actively initiates the service request, a dynamic information request is initiated to the unified data management network element, so as to reacquire the terminal dynamic information and recover the management and control of the terminal device and the subsequent service support.
Another aspect of the embodiments of the present application relates to a data caching method, applied to a functional network element, where a flow of the data caching method may refer to fig. 6, and includes the following steps:
step 601, under the condition that the terminal is successfully accessed, a dynamic information cache request is sent to a unified data management network element.
Specifically, the functional network element locally caches terminal dynamic information corresponding to the terminal equipment under the condition that the terminal equipment is detected to be successfully accessed or the terminal equipment which is successfully accessed is in an on-line state, and sends a dynamic information caching request to the unified data management network element for the unified data management network element to cache the dynamic information, wherein the dynamic information caching request comprises the terminal dynamic information. It should be noted that the dynamic information cache request may further include identification information, for example, a network element identifier of the functional network element and a user permanent identifier corresponding to the terminal device.
In one example, after the functional network element sends a dynamic information caching request to the unified data management network element and caches the terminal dynamic information to the unified data management network element, the functional network element further includes: after the dynamic information of the terminal changes, a dynamic information updating request is sent to the unified data management network element, so that the unified data management network element can update the cached dynamic information of the terminal; wherein the dynamic information update request includes the latest terminal dynamic information. The method comprises the steps that with the change of a business process, terminal dynamic information corresponding to terminal equipment changes, and when detecting the occurrence of locally cached terminal dynamic information, a functional network element sends a dynamic information update request to a unified data management network element, wherein the dynamic information update request comprises the latest terminal dynamic information, and the unified data management network element updates the cached terminal dynamic information into the latest terminal dynamic information. In addition, the dynamic information update request may further include identification information corresponding to the dynamic information of the terminal, for example, a network element identifier of the functional network element and a user permanent identifier corresponding to the terminal device, so that the unified data management network element can perform accurate and efficient updating of the dynamic information of the terminal.
In another example, after the functional network element sends a dynamic information caching request to the unified data management network element and caches the terminal dynamic information to the unified data management network element, the functional network element further includes: after detecting that the terminal is off line, a dynamic information deleting request is sent to the unified data management network element, so that the unified data management network element deletes the dynamic information of the terminal. After detecting that the service of the terminal equipment is in an offline state after the service processing is finished, the functional network element clears the locally cached terminal dynamic information, and sends a dynamic information deleting request to the unified data management network element, wherein the dynamic information deleting request can comprise a user permanent identifier corresponding to the terminal equipment and a network element identifier of the functional network element as the identification information of the terminal dynamic information to be deleted, so that the unified data management network element can accurately delete the invalid terminal dynamic information, and the resource occupation of the invalid terminal dynamic information is avoided.
It should be noted that the functional network element may be a network element such as AMF, SMF, SMSF, and a specific access network element may be selected according to a service handled by the terminal, and the specific selection of the functional network element is not limited in this embodiment.
Step 602, after restarting, sending a dynamic information request to the unified data management network element.
Specifically, after the functional network element is restarted, the stored terminal dynamic information is lost, and under the condition that a subsequent service request initiated by a network side or terminal equipment is received, a dynamic information request is initiated to the unified data management network element to request for acquiring the terminal dynamic information of the terminal equipment. The dynamic information request can comprise a user permanent identifier corresponding to the terminal equipment and the network element identifier of the functional network element as the identification information of the requested terminal dynamic information, so that the required terminal dynamic information can be accurately acquired.
And step 603, receiving terminal dynamic information issued by the unified data management network element, and recovering management and control of the terminal according to the terminal dynamic information.
Specifically, after receiving the terminal dynamic information issued by the unified data management network element, the functional network element initiates a subsequent service request to the terminal equipment according to the received terminal dynamic information, updates the terminal dynamic information according to the service response of the terminal equipment, and resumes management and control and service support of the terminal equipment. The aim of avoiding incapability of providing service support and improving user experience caused by the loss of dynamic information of the functional network element is fulfilled by utilizing the unified data management network element to realize the dynamic information cache, and the disaster recovery function of the functional network element is realized without additionally deploying new resources, so that the network service quality and the adaptability are indirectly improved.
Moreover, it should be understood that the above steps of the various methods are divided, for clarity of description, and may be combined into one step or split into multiple steps when implemented, so long as they include the same logic relationship, and all the steps are within the scope of protection of the present patent; it is within the scope of this patent to add insignificant modifications to the algorithm or flow or introduce insignificant designs, but not to alter the core design of its algorithm and flow.
Another aspect of the embodiments of the present application further provides a data management network element, referring to fig. 7, including:
the receiving module 701 is configured to receive a dynamic information cache request of a preset functional network element, where the dynamic information cache request includes terminal dynamic information.
And the caching module 702 is configured to cache the dynamic information of the terminal according to the dynamic information caching request.
And the response module 703 is configured to send terminal dynamic information to the preset functional network element after receiving a dynamic information request initiated by the preset functional network element after restarting, so that the preset functional network element resumes controlling the terminal.
It is to be noted that this embodiment is an embodiment of the apparatus corresponding to an embodiment of the method applied to the unified data management network element, and this embodiment may be implemented in cooperation with the embodiment of the method. The related technical details mentioned in the method embodiment are still valid in this embodiment, and in order to reduce repetition, they are not described here again. Accordingly, the related technical details mentioned in the present embodiment may also be applied in the method embodiment.
It should be noted that, each module involved in this embodiment is a logic module, and in practical application, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, units less closely related to solving the technical problem presented by the present invention are not introduced in the present embodiment, but it does not indicate that other units are not present in the present embodiment.
Another aspect of the embodiments of the present application further provides a functional network element, referring to fig. 8, including:
and the sending module 801 is configured to send a dynamic information caching request to the unified data management network element when the terminal is successfully accessed, where the dynamic information caching request includes terminal dynamic information.
A request module 802, configured to send a dynamic information request to the unified data management network element after restarting.
And the management module 803 is used for receiving the terminal dynamic information issued by the unified data management network element and recovering the management and control of the terminal according to the terminal dynamic information.
It is to be noted that this embodiment is an embodiment of the apparatus corresponding to the embodiment of the method applied to the functional network element, and this embodiment may be implemented in cooperation with the embodiment of the method. The related technical details mentioned in the method embodiment are still valid in this embodiment, and in order to reduce repetition, they are not described here again. Accordingly, the related technical details mentioned in the present embodiment may also be applied in the method embodiment.
It should be noted that, each module involved in this embodiment is a logic module, and in practical application, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, units less closely related to solving the technical problem presented by the present invention are not introduced in the present embodiment, but it does not indicate that other units are not present in the present embodiment.
Another aspect of the embodiments of the present application further provides an electronic device, referring to fig. 9, including: including at least one processor 901; and a memory 902 communicatively coupled to the at least one processor 901; the memory 902 stores instructions executable by the at least one processor 901, where the instructions are executable by the at least one processor 901 to enable the at least one processor 901 to perform the data caching method described in any one of the method embodiments above.
Where the memory 902 and the processor 901 are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors 901 and the memory 902 together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 901 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 901.
The processor 901 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 902 may be used to store data used by processor 901 in performing operations.
Embodiments of the present invention also provide a computer-readable storage medium storing a computer program. The computer program implements the above-described method embodiments when executed by a processor.
That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments described herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments in which the present application is implemented and that various changes in form and details may be made therein without departing from the spirit and scope of the present application.

Claims (12)

1. The data caching method is characterized by being applied to a unified data management network element and comprising the following steps of:
receiving a dynamic information cache request of a network element with a preset function, wherein the dynamic information cache request comprises terminal dynamic information;
caching the dynamic information of the terminal according to the dynamic information caching request;
and after receiving a dynamic information request initiated by the preset functional network element after restarting, sending the terminal dynamic information to the preset functional network element, so that the preset functional network element can recover the control of the terminal according to the terminal dynamic information.
2. The data caching method according to claim 1, further comprising, after the caching of the terminal dynamic information according to the dynamic information caching request:
receiving a dynamic information deleting request initiated by the network element with the preset function after the terminal is offline;
and deleting the dynamic information of the terminal according to the dynamic information deleting request.
3. The data caching method according to claim 1, further comprising, after the caching of the terminal dynamic information according to the dynamic information caching request:
receiving a dynamic information update request of the network element with the preset function, wherein the dynamic information update request comprises the latest terminal dynamic information;
and updating the cached terminal dynamic information into the latest terminal dynamic information according to the dynamic information updating request.
4. A data caching method according to any one of claims 1 to 3, further comprising, after said caching of said terminal dynamic information according to said dynamic information caching request:
setting an update time stamp for the cached terminal dynamic information, wherein the update time stamp comprises a first moment when the terminal dynamic information is updated for the last time;
and deleting the terminal dynamic information under the condition that the time interval between the first time and the current time is longer than a preset duration.
5. The method of claim 4, wherein the buffering the terminal dynamic information comprises:
caching the terminal dynamic information and storing registration information corresponding to the terminal dynamic information; wherein, the registration information is dynamically maintained according to the access state of the terminal on the preset functional network element;
before deleting the terminal dynamic information, the method further comprises the following steps:
detecting whether the corresponding registration information exists in the terminal dynamic information;
and deleting the terminal dynamic information under the condition that the corresponding registration information does not exist in the terminal dynamic information.
6. The data caching method is characterized by being applied to a functional network element and comprising the following steps:
under the condition that the terminal is successfully accessed, a dynamic information caching request is sent to a unified data management network element for the unified data management network element to cache the dynamic information, wherein the dynamic information caching request comprises the dynamic information of the terminal;
after restarting, sending a dynamic information request to the unified data management network element;
and receiving the terminal dynamic information issued by the unified data management network element, and recovering management and control of the terminal according to the terminal dynamic information.
7. The data caching method of claim 6, further comprising:
after the dynamic information of the terminal changes, a dynamic information updating request is sent to the unified data management network element, so that the unified data management network element can update the cached dynamic information of the terminal;
wherein the dynamic information update request includes the latest terminal dynamic information.
8. The data caching method according to claim 6 or 7, characterized by further comprising:
and after detecting that the terminal is off line, sending a dynamic information deleting request to the unified data management network element, so that the unified data management network element deletes the terminal dynamic information.
9. A data management network element, comprising:
the receiving module is used for receiving a dynamic information cache request of a network element with a preset function, wherein the dynamic information cache request comprises terminal dynamic information;
the caching module is used for caching the dynamic information of the terminal according to the dynamic information caching request;
and the response module is used for sending the terminal dynamic information to the preset functional network element after receiving the dynamic information request initiated by the preset functional network element after restarting, so that the preset functional network element can recover the management and control of the terminal.
10. A functional network element, comprising:
the system comprises a sending module, a unified data management network element and a terminal access module, wherein the sending module is used for sending a dynamic information caching request to the unified data management network element under the condition that the terminal access is successful, so that the unified data management network element can carry out dynamic information caching, and the dynamic information caching request comprises terminal dynamic information;
the request module is used for sending a dynamic information request to the unified data management network element after restarting;
and the management module is used for receiving the terminal dynamic information issued by the unified data management network element and recovering the management and control of the terminal according to the terminal dynamic information.
11. An electronic device, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data caching method of any one of claims 1 to 5, or the data caching method of any one of claims 6 to 8.
12. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the data caching method of any one of claims 1 to 5, or the data caching method of any one of claims 6 to 8.
CN202111460547.6A 2021-12-02 2021-12-02 Data caching method, network element, electronic equipment and storage medium Pending CN116261153A (en)

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CN109818766B (en) * 2017-11-21 2022-08-16 中兴通讯股份有限公司 Communication method, network function entity, network function storage and computer readable storage medium
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