CN114867097A - Method performed by a network node, network node and storage medium - Google Patents
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Abstract
The invention provides a method performed by a network node, a network node and a storage medium. A method performed by a first network node, comprising: receiving a user offline or re-registration request; judging whether a user performs a predetermined service; if yes, suspending the user offline or re-registering request; and if not, notifying the user of offline or re-registration.
Description
Technical Field
The present invention relates generally to communication network technology and, more particularly, to methods performed by a network node, network nodes, and storage media.
Background
In the 5G (5th generation) mobile communication network architecture, the UDM (Unified Data Management) may trigger the user to log off or re-register due to the user subscription update or configuration change. The offline and re-registration behavior inevitably affects the service experience of the user, and especially, when the user is performing some key services (such as voice call, etc.), and does not want to interrupt, the impact is greater.
However, currently, the UDM cannot know the current service state of the user, so that the UDM cannot selectively perform a forced offline operation of the user according to the current service state of the user (whether a key service which is not desired to be interrupted is being used), and currently, the industry has no solution to this problem.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood, however, that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts of the invention in a simplified form as a prelude to the more detailed description that is presented later.
The invention provides a method executed by a network node, the network node and a storage medium, which avoid the influence of offline or re-registration on the service experience of a user.
According to an aspect of the invention, there is provided a method performed by a first network node, comprising: receiving a user offline or re-registration request; judging whether a user performs a predetermined service; if yes, suspending the user offline or re-registering request; and if not, notifying the user of offline or re-registration.
In an embodiment of the invention, the method further comprises: receiving predetermined service information of the user from at least one second network node; and updating the local record of the first network node according to the predetermined service information.
In an embodiment of the present invention, the first network node checks the local record and determines whether the user performs the predetermined service according to the local record.
In an embodiment of the present invention, the first network node receives the predetermined service information of the user from the at least one second network node when a state of the predetermined service changes.
In an embodiment of the present invention, the states of the predetermined service include an operating state and a non-operating state.
In an embodiment of the present invention, the predetermined service information includes status information of the predetermined service whose status changes and an identifier of the second network node.
In an embodiment of the invention, the first network node comprises a unified data management.
According to another aspect of the invention, there is provided a method performed by a second network node, comprising: identifying a predetermined service; acquiring the preset service information of a user; and reporting the predetermined service information to the first network node.
In the embodiment of the present invention, when the state of the predetermined service changes, the second network node reports predetermined service information to the first network node.
In an embodiment of the present invention, the predetermined service information includes state information of the predetermined service whose state changes and a second network node identifier.
In an embodiment of the invention, the second network node identifies the predetermined service according to predetermined service identification information.
In an embodiment of the present invention, the predetermined service identification information includes a predetermined condition of triple information and/or a predetermined condition of 5G qos identification information; and when the triple information related to the service meets the preset condition of the triple information and/or the 5G service quality identification information related to the service meets the preset condition of the 5G service quality identification information, the second network node identifies the service as the preset service.
In an embodiment of the present invention, the predetermined condition of the triplet information includes: a preconfigured range of triples; the predetermined condition of the 5G service quality identification information comprises: the 5G quality of service identifies the indicated quality of service level.
In an embodiment of the invention, the second network node comprises a session management function.
According to yet another aspect of the invention, there is provided a network node comprising: a memory having instructions stored thereon; and a processor configured to execute instructions stored on the memory to perform the above-described method.
According to yet another aspect of the invention, there is provided a computer-readable storage medium comprising computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the method described above.
According to the embodiment of the invention, the influence of offline or re-registration on the service experience of the user is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
The invention will be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is an exemplary flow chart of a method performed by a first network node according to an embodiment of the present invention.
Fig. 2 is an exemplary flow chart of a method performed by a second network node according to an embodiment of the present invention.
Fig. 3 is a more detailed exemplary flow chart through a method performed by a network node according to an embodiment of the present invention.
Fig. 4 is a detailed exemplary flowchart illustrating a user being required to go offline during the course of a critical service.
FIG. 5 illustrates an exemplary configuration of a computing device 500 in which embodiments in accordance with the invention may be implemented.
Detailed Description
The following detailed description is made with reference to the accompanying drawings and is provided to assist in a comprehensive understanding of various exemplary embodiments of the invention. The following description includes various details to assist understanding, but these details are to be regarded as examples only and not as limitations on the invention, as defined by the appended claims and their equivalents. The words and phrases used in the following description are used only to provide a clear and consistent understanding of the invention. In addition, descriptions of well-known structures, functions, and configurations may be omitted for clarity and conciseness. Those of ordinary skill in the art will recognize that various changes and modifications of the examples described herein can be made without departing from the spirit and scope of the invention.
Fig. 1 is an exemplary flow chart of a method performed by a first network node according to an embodiment of the present invention. The method performed by the first network node of an embodiment of the invention may comprise steps S101 to S104.
As shown in fig. 1, in step S101, a first network node receives a user offline or re-registration request. In step S102, the first network node determines whether the user performs a predetermined service. If yes, in step S103, the user is suspended to be offline or the request for re-registration is made; and if not, notifying the user of the logoff or the re-registration in step S104.
For example, the first network node may be a UDM (Unified Data Management). The predetermined service may be a key service such as a voice call.
Furthermore, suspending the user logoff or re-registration request, notifying the user logoff or re-registration execution comprises the first network node executing itself and notifying other nodes to execute in coordination. Specifically, the execution may be triggered by the UDM, and the UDM notifies other nodes such as an AMF and an SMF, which will be described later, of completion of cooperation when executing the execution.
In some embodiments, the method performed by the first network node may further comprise: receiving predetermined service information of a user from at least one second network node; and updating the local record of the first network node according to the predetermined service information.
For example, the second network node may be an SMF (Session Management Function). The predetermined service information may be information related to a predetermined service. The local record may be stored at the first network node, may be related to the scheduled service information, and may be updated each time new scheduled service information is received.
In some embodiments, the first network node checks the local record and determines from the local record whether the user is conducting a predetermined service.
In some embodiments, the first network node receives the subscriber's subscription service information from the at least one second network node upon a change in the status of the subscription service.
For example, it may be that the predetermined service information is received only when the state of the predetermined service changes.
In some embodiments, the states of the predetermined service include an operational state and a non-operational state.
In some embodiments, the predetermined service information comprises status information of the predetermined service with a changed status and an identification of the second network node.
For example, a state change refers to a state change from an operating state to a non-operating state or from a non-operating state to an operating state. Furthermore, the predetermined service may be operational or non-operational on the second network node.
Therefore, it is possible to know what change has occurred in which traffic subscription state on which SMF, by means of the traffic subscription information including the state information of the traffic subscription whose state has changed and the identity of the second network node.
Fig. 2 is an exemplary flow chart of a method performed by a second network node according to an embodiment of the present invention. The method performed by the second network node of an embodiment of the invention may comprise steps S201 to S203.
As shown in fig. 2, in step S201, a predetermined service is identified. In step S202, the predetermined service information of the user is acquired. In step S203, the predetermined service information is reported to the first network node.
In some embodiments, when the state of the predetermined service changes, the second network node reports the predetermined service information to the first network node.
For example, the scheduled service information may be reported only when the status of the scheduled service changes.
In some embodiments, the predetermined service information comprises status information of the predetermined service with a changed status and the second network node identification.
In some embodiments, the second network node identifies the predetermined service according to the predetermined service identification information.
Aiming at the problem that the current UDM can not selectively carry out user forced offline (or re-registration) according to the current service state of the user, the invention provides that key service identification information is configured in the SMF, and the state information of the key service currently used by the user is synchronized into the UDM in real time, so that a basis is provided for the execution time point decision of the forced offline operation of the UDM, and the influence on the service experience of the user can be reduced to the greatest extent.
Fig. 3 is a more detailed exemplary flow chart through a method performed by a network node according to an embodiment of the present invention. An example in which the predetermined service shown in fig. 1 and 2 is a critical service is shown in fig. 3.
As shown in fig. 3, in step S301, the SMF configures predetermined service identification information, for example, key service identification information. Which services belong to predetermined services, e.g. critical services, are configured in the SMF.
In some embodiments, the predetermined service identification information includes a predetermined condition of the triple information and/or a predetermined condition of the 5G quality of service identification information; and when the triple information related to the service meets the preset condition of the triple information and/or the 5G service quality identification information related to the service meets the preset condition of the 5G service quality identification information, the second network node identifies the service as a preset service.
In some embodiments, the predetermined condition of the triplet information includes: a preconfigured range of triples; the predetermined conditions of the 5G quality of service identification information include: the 5G quality of service identifies the indicated quality of service level.
For example, the predetermined service may be identified by configuring triple information or a 5G quality of service Identifier (5G QoS Identifier) value. The triplet information may include the destination IP address/destination port number/protocol number.
For example, a target IP address/target port number/protocol number in a predetermined value range, and/or a 5G qos tag value in a predetermined value range may indicate that the related service belongs to a predetermined service.
In step S302, the SMF receives a Policy request sent by a PCF (Policy Control Function) and identifies a critical service. PCF sends strategy request to SMF, wherein, it can carry triple information or 5G service quality identification information related to service, and at the same time, it indicates the operation (such as starting or stopping) executed to related service; for example, the SMF compares the pre-configured key service identification information with the received policy information to identify whether the request belongs to a key service related operation.
In step S303, the SMF performs a relevant session operation. Based on the received policy request, the SMF performs relevant operations including new/modify/delete QoS flows (quality of service flows), etc.
In step S304, the SMF updates the key service information currently used by the user to the UDM. When the SMF judges that the state (only in operation or not) of the key service used by the user changes, the SMF sends a message to a home UDM of the user, wherein the message carries the current key service related information of the user and the SMF identification. And after receiving the information, the UDM records the SMF identification and the user key service information sent by the SMF identification. If the user has a key service running on the SMF, then one more key service is running, and since the key service state on the SMF is always running, this is not the case that the state of the key service changes.
In step S305, the UDM receives a request to take the user offline or re-register. Due to the reasons of user subscription change, or UDM configuration change, or maintenance, etc., the UDM receives the requirement of requiring the user to be offline or re-registered from a network manager or other platforms.
In step S306, the UDM determines whether to execute immediately according to the current key service information of the user. The UDM will check the key service information sent by each SMF serving the user, which is stored before, and if the user has no key service on all SMFs currently running, then in step S308, re-registration operation can be immediately performed; otherwise, in step S307, the re-registration operation is suspended, and the re-registration operation is executed after all the key services of the user are finished.
Fig. 4 is a detailed exemplary flowchart illustrating a user being required to go offline during the course of a critical service.
As shown in fig. 4, the terminal may be a terminal device held by a user. The AMF is an access and mobility management function. AUSF is an authorization service function.
As shown in fig. 4, the SMF pre-configures key service identification information (S1). Such as triplet information for configuring critical services. The user successfully registers and creates a PDU (protocol data unit) session at the 5GC (5G core network) (S2). The user or the network triggers a critical service request (S3). The PCF issues policy information of the service to the SMF, where the policy information carries the service triplet and the corresponding QoS (quality of service) information (S4). The SMF returns a policy issuance response to the PCF (S5). The SMF newly establishes a QoS flow to carry traffic according to the received policy information (S6). The SMF compares the triplet information of the preconfigured key service with the triplet information in the received policy information, determines that the service is the key service, and finds that the user is not performing the key service before, i.e. the user enters a key service performing state from a key service not performing state, so that the SMF reports the key service information of the user to the UDM to which the user belongs, wherein the key service information carries the SMF identifier and the key service state (in operation) of the user (S7). After receiving the key service reporting message from the SMF, the UDM shall record the SMF identifier, register the key service status of the user on the SMF as running, and reply a response (S8). The UDM receives a user logoff request issued by the network management platform (S9). The UDM checks the local record and finds that the user is currently running with the relevant key service, and the UDM suspends the logoff request (S10). The user ends the critical service (S11). The SMF finds that the user has no key service on it, and the SMF reports key service information to the UDM, where the key service information carries the SMF id and the key service status (not running) of the user (S12). The UDM updates the key service information of the user registered thereon and replies a response (S13). The UDM finds that the user is running on all SMFs currently serving it regardless of the key traffic, and performs the previously suspended logoff operation (S14).
The embodiment of the invention relates to a 5GC key service guarantee method. Aiming at the problem that the existing UDM can not selectively carry out forced user offline (or re-registration) according to the current service state of a user, a 5GC key service guarantee method is provided, when the user uses key services (namely services which are not expected to be interrupted, such as voice), SMF informs the UDM of the state of the key services used by the user in real time, and then the UDM can determine whether the user can be immediately offline or re-registered according to the information, and the method can greatly reduce the influence of operations such as system configuration or maintenance on user service experience.
The purpose of the embodiment of the invention is realized as follows: configuring key service identification information by the SMF through a 5GC key service guarantee method; SMF receives service strategy request from PCF and identifies key service; SMF executes relevant session operation; the SMF updates the key service information currently used by the user to the UDM; the UDM receives a request for the user to log off the line or re-register; and the UDM judges whether to execute the operation immediately according to the current key service information of the user.
Compared with the prior art that the network manager blindly controls the user to carry out offline operation, the method and the system can reduce the influence on the service experience of the user to the maximum extent and have the effect of improving the user experience.
FIG. 5 illustrates an exemplary configuration of a computing device 500 in which embodiments in accordance with the invention may be implemented.
As shown in fig. 5, computing device 500 may include one or more elements that may be connected to or communicate with bus 502 via one or more interfaces. Bus 502 may include, but is not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an enhanced ISA (eisa) bus, a Video Electronics Standards Association (VESA) local bus, a Peripheral Component Interconnect (PCI) bus, and the like. Computing device 500 may include, for example, one or more processors 504, one or more input devices 506, and one or more output devices 508. The one or more processors 504 may be any kind of processor and may include, but are not limited to, one or more general-purpose processors or special-purpose processors (such as special-purpose processing chips). The processor 502 may be configured to execute instructions stored on the memory, for example, to perform the methods performed by the network node described in fig. 1 and/or fig. 2. Input device 506 may be any type of input device capable of inputting information to a computing device and may include, but is not limited to, a mouse, a keyboard, a touch screen, a microphone, and/or a remote controller. Output device 508 can be any type of device capable of presenting information and can include, but is not limited to, a display, speakers, a video/audio output terminal, a vibrator, and/or a printer.
The invention can be implemented as any combination of apparatus, systems, integrated circuits, and computer programs on non-transitory computer readable storage media. One or more processors may be implemented as an Integrated Circuit (IC), an Application Specific Integrated Circuit (ASIC), or a large scale integrated circuit (LSI), a system LSI, a super LSI, or an ultra LSI package that performs some or all of the functions described in this disclosure.
The invention includes the use of software, applications, computer programs or algorithms. Software, applications, computer programs, or algorithms may be stored on a non-transitory computer readable storage medium to cause a computer, such as one or more processors, to perform the steps described above and depicted in the figures. For example, one or more memories store software or algorithms in executable instructions and one or more processors may be associated with a set of instructions that execute the software or algorithms to provide various functionality in accordance with the embodiments described herein.
Software and computer programs (which may also be referred to as programs, software applications, components, or code) include machine instructions for a programmable processor, and may be implemented in a high-level procedural, object-oriented, functional, logical, or assembly or machine language. The term "computer-readable storage medium" refers to any computer program product, apparatus or device, such as magnetic disks, optical disks, solid state storage devices, memories, and Programmable Logic Devices (PLDs), used to provide machine instructions or data to a programmable data processor, including computer-readable storage media that receive machine instructions as a computer-readable signal.
By way of example, computer-readable storage media may include Dynamic Random Access Memory (DRAM), Random Access Memory (RAM), Read Only Memory (ROM), electrically erasable read only memory (EEPROM), compact disk read only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to carry or store desired computer-readable program code in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Disk or disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable storage media.
The subject matter of the present disclosure is provided as examples of methods, systems, and computer-readable storage media for performing features described in the disclosure. However, other features or variations are contemplated in addition to the features described above. It is contemplated that the implementation of the components and functions of the present invention may be accomplished with any emerging technology that may replace the technology of any of the implementations described above.
Additionally, the above description provides examples, and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the invention. Various embodiments may omit, substitute, or add various procedures or components as appropriate. For example, features described with respect to certain embodiments may be combined in other embodiments.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous.
Claims (16)
1. A method performed by a first network node, comprising:
receiving a user offline or re-registration request;
judging whether a user performs a predetermined service;
if yes, suspending the user offline or re-registering request; and
and if not, notifying the user of offline or re-registration.
2. The method of claim 1, further comprising:
receiving predetermined service information of the user from at least one second network node; and
and updating the local record of the first network node according to the preset service information.
3. The method of claim 2, wherein,
the first network node checks the local record and determines whether the user performs the predetermined service according to the local record.
4. The method of claim 2 or 3,
and when the state of the predetermined service changes, the first network node receives the predetermined service information of the user from the at least one second network node.
5. The method of claim 4, wherein,
the states of the predetermined service include an operating state and a non-operating state.
6. The method of claim 2 or 3,
the predetermined service information includes state information of the predetermined service whose state is changed and an identification of the second network node.
7. The method of any one of claims 1 to 3,
the first network node comprises a unified database.
8. A method performed by a second network node, comprising:
identifying a predetermined service;
acquiring the preset service information of a user; and
and reporting the predetermined service information to the first network node.
9. The method of claim 8, wherein,
and when the state of the predetermined service changes, the second network node reports the predetermined service information to the first network node.
10. The method of claim 9, wherein,
the predetermined service information includes state information of the predetermined service whose state is changed and a second network node identifier.
11. The method of claim 8, wherein,
the second network node identifies the predetermined service according to predetermined service identification information.
12. The method of claim 11, wherein,
the predetermined service identification information comprises a predetermined condition of triple information and/or a predetermined condition of 5G service quality identification information;
and when the triple information related to the service meets the preset condition of the triple information and/or the 5G service quality identification information related to the service meets the preset condition of the 5G service quality identification information, the second network node identifies the service as the preset service.
13. The method of claim 12, wherein,
the predetermined condition of the triplet information includes: a preconfigured range of triples;
the predetermined condition of the 5G service quality identification information comprises: the 5G quality of service identifies the indicated quality of service level.
14. The method of any one of claims 8 to 13,
the second network node comprises a session management function.
15. A network node, comprising:
a memory having instructions stored thereon; and
a processor configured to execute instructions stored on the memory to perform the method of any of claims 1-14.
16. A computer-readable storage medium comprising computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the method of any one of claims 1-14.
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| WO2012024486A1 (en) * | 2010-08-18 | 2012-02-23 | Research In Motion Limited | Methods to maintain call continuity |
| CN104581859A (en) * | 2013-10-25 | 2015-04-29 | 中兴通讯股份有限公司 | Wireless communication business processing method and device |
| CN110324840A (en) * | 2018-03-31 | 2019-10-11 | 华为技术有限公司 | A kind of method and device updating configuration |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012024486A1 (en) * | 2010-08-18 | 2012-02-23 | Research In Motion Limited | Methods to maintain call continuity |
| CN104581859A (en) * | 2013-10-25 | 2015-04-29 | 中兴通讯股份有限公司 | Wireless communication business processing method and device |
| CN110324840A (en) * | 2018-03-31 | 2019-10-11 | 华为技术有限公司 | A kind of method and device updating configuration |
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