CN111638997A - Data recovery method and device and network equipment - Google Patents
Data recovery method and device and network equipment Download PDFInfo
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- CN111638997A CN111638997A CN202010468208.1A CN202010468208A CN111638997A CN 111638997 A CN111638997 A CN 111638997A CN 202010468208 A CN202010468208 A CN 202010468208A CN 111638997 A CN111638997 A CN 111638997A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1464—Management of the backup or restore process for networked environments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
Abstract
The invention provides a data recovery method, which comprises the following steps: receiving data recovery information sent by a cloud platform, wherein the data recovery information comprises data recovery content and a data recovery version number; and selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal. Correspondingly, a data recovery device and network equipment are also provided. The method can solve the problems of data recovery failure or data loss and poor user experience caused by abnormal network connection of the terminal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data recovery method, an apparatus, and a network device.
Background
With the function of the terminal becoming richer and richer, various application software installed on the terminal becomes more and more, and the installed video and audio applications and the photographing application occupy more memory resources of the terminal, so that the memory of the terminal is insufficient, and the user can store the terminal data on the cloud platform. In addition, the development of cloud computing enables the functions of the terminal part to be gradually moved up to a cloud platform, and the terminal only needs to be provided with basic hardware facilities and a light-weight OS operating system (the terminal is called a thin terminal for short).
When a user has a data recovery requirement, the prior art needs the terminal to maintain normal network connection in the data recovery process, when a base station signal is not good, conditions such as data transmission failure or extension during transmission are easily caused, and finally data recovery failure or data loss of the terminal is caused, and the user needs to initiate a data recovery request service again, so that the user experience is poor.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a data recovery method, device and network device for solving the above-mentioned deficiencies in the prior art, and solve the problems of data recovery failure or data loss and poor user experience caused by abnormal network connection of the terminal.
In a first aspect, an embodiment of the present invention provides a data recovery method, including: receiving data recovery information sent by a cloud platform, wherein the data recovery information comprises data recovery content and a data recovery version number; and selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
Preferably, the receiving of the data recovery information sent by the cloud platform specifically includes: and the user plane function receives data recovery information periodically sent by the cloud platform, or the user plane function receives data recovery information sent by the cloud platform according to a request of the terminal.
Preferably, the selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal specifically includes: when the terminal is in a networking state, the forwarding strategy is to send the data recovery information to the terminal by a user plane function; or, the forwarding policy is to send the data recovery information to the terminal and the unified data management by the user plane function; when the terminal is in the network disconnection state, the forwarding strategy is to send the data recovery information to the unified data management by the user plane function, and when the terminal recovers the network connection state, the unified data management sends the data recovery information to the terminal.
Preferably, the forwarding policy is that the user plane function sends the data recovery information to the terminal and the unified data management, in the process of sending the data recovery information to the terminal by using the forwarding policy, when the terminal is disconnected, the user plane function stops sending the data recovery information to the terminal, marks the interruption position of the data recovery information, and sends the interruption position to the unified data management, and when the terminal recovers the networking state, the unified data management sends the remaining content after the interruption position of the data recovery information to the terminal.
Preferably, before receiving the data recovery information sent by the cloud platform, the data recovery method further includes: receiving a data recovery request sent by a terminal, wherein the data recovery request comprises user identification information and cloud platform identification information; and sending the data recovery request to a cloud platform corresponding to the cloud platform identification information. The receiving of the data recovery information sent by the cloud platform specifically includes: and receiving data recovery information sent by the cloud platform corresponding to the cloud platform identification information.
Preferably, after receiving the data recovery request sent by the terminal and before sending the data recovery request to the cloud platform corresponding to the cloud platform identification information, the data recovery method further includes: sequentially judging whether the user identification information passes the user plane function and unified data management authentication; and when the judgment result shows that the user identification information is not passed through the user plane function authentication, finishing the authentication of the user identification information in the user plane function and the unified data management, and when the judgment result shows that the user identification information is not passed through the unified data management authentication, finishing the authentication of the user identification information in the unified data management.
Preferably, the sending the data recovery request to the cloud platform corresponding to the cloud platform identification information specifically includes: and the user plane function sends the data recovery request to a cloud platform corresponding to the cloud platform identification information for registration, authentication and security management.
In a second aspect, the present invention provides a data recovery method, applied to a user plane function, including: receiving data recovery information sent by a cloud platform, wherein the data recovery information comprises data recovery content and a data recovery version number; and selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
In a third aspect, an embodiment of the present invention provides a data recovery apparatus, including a receiving module and a sending module. The receiving module is used for receiving data recovery information sent by the cloud platform, and the data recovery information comprises data recovery content and a data recovery version number. And the sending module is connected with the receiving module and used for selecting different forwarding strategies according to the network connection state of the terminal and sending the data recovery information to the terminal.
In a fourth aspect, an embodiment of the present invention provides a network device, which includes a memory and a processor. The memory has stored therein a computer program, and the processor is arranged to run the computer program to implement the data recovery method described in the first aspect.
According to the data recovery method provided by the embodiment of the invention, different forwarding strategies are selected according to the network connection state of the terminal to send the data recovery information to the terminal, so that the condition of data recovery failure or data loss caused by abnormal network connection of the terminal is avoided, a user does not need to initiate a data recovery request service again, and the user experience is improved.
Drawings
FIG. 1: is a flow chart of a data recovery method of embodiment 1 of the present invention;
FIG. 2: is a flow chart of a data recovery method of embodiment 2 of the present invention;
FIG. 3: is a structural diagram of a data recovery apparatus of embodiment 4 of the present invention;
FIG. 4: which is a structure diagram of a network device in embodiment 5 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the data recovery method, apparatus and network device of the present invention are further described in detail below with reference to the accompanying drawings and embodiments.
Example 1:
as shown in fig. 1, the present embodiment provides a data recovery method, which is applied to a network device. At present, data content stored in a cloud platform by a terminal needs to be restored to the terminal, and the data restoring method includes:
In this embodiment, the data recovery content refers to data content that is stored in the cloud platform by the terminal before, and the data recovery version number refers to a corresponding version number generated when the terminal stores the data content to the cloud platform each time, for example, the version number is marked as a storage date. Usually, the version number in the data recovery information sent by the cloud platform is the latest version number.
Specifically, the user plane function receives data recovery information periodically sent by the cloud platform, or the user plane function receives data recovery information sent by the cloud platform according to a request of the terminal.
In this embodiment, the user plane function receives data recovery information sent by the cloud platform. The cloud platform is triggered to send the data recovery information in two ways, one way is that the cloud platform sends the data recovery information periodically according to a preset time duration, for example, the preset time duration is set to 30 days, and the cloud platform sends the data recovery information once every 30 days. The other mode is that the cloud platform sends data recovery information according to a request of the terminal.
And 102, selecting different forwarding strategies according to the network connection state of the terminal to send data recovery information to the terminal.
In this embodiment, the network connection state of the terminal includes a networking state and a network disconnection state.
Specifically, when the terminal is in a networking state, the forwarding policy is to send data recovery information to the terminal by the user plane function, or the forwarding policy is to send data recovery information to the terminal and unified data management by the user plane function; when the terminal is in the network disconnection state, the forwarding strategy is to send data recovery information to the unified data management by the user plane function, and when the terminal recovers the network connection state, the unified data management sends the data recovery information to the terminal.
In this embodiment, the network device presets different forwarding strategies according to the network connection state of the terminal. When the terminal is in a networking state, two forwarding strategies exist, and one of the forwarding strategies can be selected by the network equipment. One forwarding strategy is to send data recovery information to a terminal directly by a user plane function, that is, a cloud platform sends data recovery information to the terminal directly by the user plane function. The other forwarding strategy is that the user plane function sends data recovery information to the terminal and the unified data management at the same time, so that the unified data management caches the data recovery information. When the terminal is in a network disconnection state, for example, the base station signal is not good, the network between the terminal and the base station is in a disconnection state, the forwarding policy is to send data recovery information to the unified data management by the user plane function, and when the terminal recovers the networking state, the unified data management sends the data recovery information to the terminal, that is, when the terminal recovers the networking state, the unified data management directly sends the data recovery information to the terminal. According to the forwarding strategy when the terminal is in the network disconnection state, the data recovery information is cached in the unified data management mode, so that the cloud platform can be prevented from sending the data recovery information again, network resources are saved, and the number of network signaling transmission is reduced. The forwarding strategies quickly recover data in a transparent transmission mode, and data transmission delay can be reduced.
Optionally, the forwarding policy is that the user plane function sends data recovery information to the terminal and the unified data management, when the terminal is disconnected during sending the data recovery information to the terminal by using the forwarding policy, the user plane function stops sending the data recovery information to the terminal, marks an interruption position of the data recovery information, but continues sending the data recovery information to the unified data management, and sends a mark of the interruption position to the unified data management, when the terminal recovers the networking state, the unified data management sends the remaining content after the interruption position of the data recovery information to the terminal, so that the repeated transmission of the data recovery information received by the terminal can be avoided, and network resources are saved.
Optionally, before receiving the data recovery information sent by the cloud platform, the data recovery method further includes:
step 11, receiving a data recovery request sent by a terminal, wherein the data recovery request includes user identification information and cloud platform identification information.
In this embodiment, the user identification information includes PLMN ID (Public Land Mobile Network ID, Public Land Mobile Network identifier), SUPI user permanent identifier, suici user identifier hiding, 5G-GUTI (5G globally unique temporary UE identifier), PEI terminal identifier, IMSI (International Mobile Subscriber Identity), IMEI (International Mobile Equipment Identity), and other information. The cloud platform identification information comprises information such as a cloud platform name and a cloud platform IP address. The data recovery request does not include a data recovery requirement, which indicates that the data recovery requirement of the data recovery request is to recover all data corresponding to the latest version number. Optionally, the data recovery request further includes a data recovery requirement, for example, the data recovery requirement is to recover only the contents of the album or the address book.
And step 12, sending a data recovery request to the cloud platform corresponding to the cloud platform identification information.
Specifically, the user plane function sends the data recovery request to the cloud platform corresponding to the cloud platform identification information for registration, authentication, and security management. Therefore, in step 101, data recovery information sent by the cloud platform corresponding to the cloud platform identification information is specifically received.
Optionally, after receiving the data recovery request sent by the terminal and before sending the data recovery request to the cloud platform corresponding to the cloud platform identification information, the data recovery method further includes:
sequentially judging whether the user identification information passes the user plane function and unified data management authentication: when the judgment result shows that the user identification information is not authenticated and passes the user plane function authentication, the authentication and authentication of the user identification information on the user plane function and the unified data management are completed; and when the judgment result shows that the user identification information is not in the unified data management authentication pass, finishing the authentication of the user identification information in the unified data management.
Example 2:
when the terminal has a data recovery requirement, namely the terminal needs to recover the data content stored in the cloud platform to the terminal, the terminal sends a data recovery request to the network equipment through the 5G base station. As shown in fig. 2, the present embodiment provides a data recovery method applied to a 5G network device, including:
step 201, an access and mobility management function receives a data recovery PDU (Protocol data unit) session request sent by a terminal, where the data recovery PDU session request includes user identification information and cloud platform identification information, and specific contents of the user identification information and the cloud platform identification information are as described in embodiment 1.
Step 202, sequentially judging whether the user identification information passes the user plane function and the unified data management authentication: when the judgment result shows that the user identification information is not authenticated and passes the user plane function authentication, the authentication and authentication of the user identification information on the user plane function and the unified data management are completed; when the judgment result shows that the user identification information is not in the unified data management authentication, the authentication of the user identification information in the unified data management is completed, and the method specifically comprises the following steps:
step S21, the access and mobility management function sends a PDU session request for data recovery to the user plane function, at the same time, the access and mobility management function and the user plane function authenticate the user identification information, if the authentication passes, the access and mobility management function and the user plane function establish an information channel for the data recovery service of the user and execute step S22. If the authentication is not passed, the steps S31-S32 are executed.
Step S22, the access and mobility management function sends a PDU session request for data recovery to the unified data management, and at the same time, the access and mobility management function and the unified data management perform authentication and authorization on the user identification information, and if the authentication and authorization is passed, the access and mobility management function and the unified data management establish an information channel for the data recovery service of the user and execute step S203. If the authentication is not passed, the access and mobility management function sends a data recovery PDU session request to the unified data management through the session request of the session management function, and meanwhile, the session management function and the unified data management perform registration, authentication, and security management on the user identification information, and the session management function and the unified data management establish an information channel for the data recovery service of the user, and execute step 203.
Step S31, the access and mobility management function sends a PDU session request for data recovery to the session management function, and at the same time, the access and mobility management function and the session management function perform registration, authentication, and security management on the user identification information, and establish an information channel for the data recovery service of the user.
Step S32, the session management function sends a PDU session request for data recovery to the user plane function, meanwhile, the session management function and the user plane function register, authenticate and manage the user identification information, and the session management function and the user plane function establish an information channel for the data recovery service of the user; meanwhile, the session management function sends a data recovery PDU session request to the unified data management, and the session management function and the unified data management perform registration, authentication, and security management on the user identification information, and the session management function and the unified data management establish an information channel for the data recovery service of the user, and execute step 203.
Step 203, sending a data recovery PDU session request to the cloud platform corresponding to the cloud platform identification information.
In this embodiment, the user plane function sends the data recovery PDU session request to the cloud platform corresponding to the cloud platform identification information for registration, authentication, and security management. And the user plane function and the cloud platform establish an information channel aiming at the data recovery service of the user.
And after the steps 201 to 203 are completed, information channels of session authentication, user identification information authentication, cloud platform IP information authentication and safety management are established among the terminal, the base station, the access and mobility management function, the session management function, the unified data management function, the user plane function and the cloud platform.
Step 204, receiving data recovery information sent by the cloud platform, wherein the data recovery information includes data recovery content and a data recovery version number.
In this embodiment, the user plane function receives data recovery information sent by the cloud platform. Meanwhile, the access and mobility management function judges the network connection state between the terminal and the base station and feeds back the judgment result to the user plane function. For example, when the user identification information does not pass the authentication and authorization of the user plane function, the method determines the network connection state between the terminal and the base station in the scenario of the authentication and authorization of the user plane function and unified data management, and specifically includes steps S41-S45:
in step S41, the cloud platform feeds back a response regarding the data recovery PDU session request to the user plane function.
In step S42, the user plane function feeds back a response to the session management function.
The session management function feeds back a response to the access and mobility management function, step S43.
In step S44, the access and mobility management function feeds back a response to the terminal.
If the step S44 is successfully executed, the determination result is that the terminal is in a networking state; if the execution of step S44 fails, the determination result is that the terminal is in a disconnected state.
Step S45, the access and mobility management function feeds back the judgment result of the network connection state of the terminal to the user plane function.
And step 205, selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
Specifically, when the terminal is in a networking state, the forwarding policy is to send data recovery information to the terminal by the user plane function, or the forwarding policy is to send the data recovery information to the terminal and unified data management by the user plane function; when the terminal is in the network disconnection state, the forwarding strategy is that the user plane function sends data recovery information to the unified data management, the user plane function informs the unified data management of the data recovery information required by the terminal, and when the terminal recovers the network connection state, the unified data management sends the data recovery information to the terminal.
The data recovery method provided in this embodiment is not limited to be applied only to a 5G network, but may be applied to networks of other systems, and is not limited to an application scenario only for data recovery, and may be applied to other scenarios in which data is downloaded from a cloud platform. The method can ensure the safety of the data recovery information by judging whether the user identification information passes the user plane function and the unified data management authentication. When the terminal is in a networking state, the user plane function sends data recovery information to the terminal, namely the cloud platform is connected with the terminal through the user plane function to directly transmit the data recovery information, the cloud platform belongs to a transparent transmission mode, data recovery can be rapidly carried out, and transmission delay is reduced. In addition, the user plane function sends data recovery information to the unified data management, so that the unified data management performs data caching, and the problem of data loss caused when the terminal is in a network disconnection state or when the network disconnection of the terminal suddenly occurs in the data recovery process is solved. Therefore, when the terminal recovers the networking state, the unified data management directly sends the data recovery information to the terminal, the data recovery information still belongs to a transparent transmission mode, the transmission time delay can be reduced, the terminal is prevented from initiating a data recovery request service again, the user experience is improved, the data recovery information is prevented from being retransmitted, the network resource is saved, the network signaling transmission quantity is reduced, the transmission time delay is prevented from being increased due to signaling storm, and the user experience is improved.
Example 3:
the embodiment provides a data recovery method applied to a user plane function. The method comprises the following steps:
step 301, receiving data recovery information sent by the cloud platform, where the data recovery information includes data recovery content and a data recovery version number.
Step 302, selecting different forwarding strategies according to the network connection state of the terminal to send data recovery information to the terminal.
Example 4:
as shown in fig. 3, the present embodiment provides a data recovery apparatus, which includes a receiving module 41 and a sending module 42.
The receiving module 41 is configured to receive data recovery information sent by the cloud platform, where the data recovery information includes data recovery content and a data recovery version number.
And the sending module 42 is connected with the receiving module 41 and is used for selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
Example 5:
as shown in fig. 4, the present embodiment provides a network device, which includes a memory 51 and a processor 52, wherein the memory 51 stores a computer program, and the processor 52 is configured to run the computer program to implement the data recovery method in embodiment 1.
The memory 51 is connected to the processor 52, the memory 51 may be a flash memory, a read-only memory or other memories, and the processor 52 may be a central processing unit or a single chip microcomputer.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A method for data recovery, comprising:
receiving data recovery information sent by a cloud platform, wherein the data recovery information comprises data recovery content and a data recovery version number;
and selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
2. The data recovery method according to claim 1, wherein the receiving of the data recovery information sent by the cloud platform specifically includes:
the user plane function receives data recovery information periodically sent by the cloud platform or,
and the user plane function receives data recovery information sent by the cloud platform according to the request of the terminal.
3. The data recovery method according to claim 2, wherein the selecting different forwarding policies according to the network connection state of the terminal to send the data recovery information to the terminal specifically includes:
when the terminal is in a networking state, the forwarding strategy is to send the data recovery information to the terminal by a user plane function; or, the forwarding policy is to send the data recovery information to the terminal and the unified data management by the user plane function;
when the terminal is in the network disconnection state, the forwarding strategy is to send the data recovery information to the unified data management by the user plane function, and when the terminal recovers the network connection state, the unified data management sends the data recovery information to the terminal.
4. The data recovery method of claim 3, wherein the forwarding policy is to send the data recovery information to the terminal and unified data management by the user plane function, and in the process of sending the data recovery information to the terminal by using the forwarding policy, when a network break occurs in the terminal, the user plane function stops sending the data recovery information to the terminal, marks an interruption position of the data recovery information, and sends the interruption position to the unified data management, and when the terminal recovers the networking state, the unified data management sends the remaining content after the interruption position of the data recovery information to the terminal.
5. The data recovery method according to claim 4, wherein before receiving the data recovery information sent by the cloud platform, the method further comprises:
receiving a data recovery request sent by a terminal, wherein the data recovery request comprises user identification information and cloud platform identification information;
sending the data recovery request to a cloud platform corresponding to the cloud platform identification information;
the receiving of the data recovery information sent by the cloud platform specifically includes: and receiving data recovery information sent by the cloud platform corresponding to the cloud platform identification information.
6. The data recovery method according to claim 5, wherein after receiving the data recovery request sent by the terminal and before sending the data recovery request to the cloud platform corresponding to the cloud platform identification information, the method further comprises:
sequentially judging whether the user identification information passes the user plane function and unified data management authentication;
when the judgment result shows that the user identification information is not authenticated and passed by the user plane function, the authentication and the authorization of the user identification information on the user plane function and the unified data management are completed,
and when the judgment result shows that the user identification information is not in the unified data management authentication pass, finishing the authentication of the user identification information in the unified data management.
7. The data recovery method according to claim 6, wherein the sending of the data recovery request to the cloud platform corresponding to the cloud platform identification information specifically includes:
and the user plane function sends the data recovery request to a cloud platform corresponding to the cloud platform identification information for registration, authentication and security management.
8. A data recovery method is applied to a user plane function, and is characterized by comprising the following steps:
receiving data recovery information sent by a cloud platform, wherein the data recovery information comprises data recovery content and a data recovery version number;
and selecting different forwarding strategies according to the network connection state of the terminal to send the data recovery information to the terminal.
9. A data recovery device is characterized by comprising a receiving module and a sending module,
the receiving module is used for receiving data recovery information sent by the cloud platform, the data recovery information comprises data recovery content and a data recovery version number,
and the sending module is connected with the receiving module and used for selecting different forwarding strategies according to the network connection state of the terminal and sending the data recovery information to the terminal.
10. A network device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to implement the method according to any one of claims 1-7.
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