CN117319483A - Method, device, network element and storage medium for processing shutdown service - Google Patents

Abstract

The application relates to a method, a device, a network element and a storage medium for processing a shutdown service, wherein the method comprises the following steps: after the UDM equipment modifies the state of the UE into a shutdown state, sending first deregistration notification information to an AMF, and after responding to the first deregistration notification information, notifying the UE to re-register and notifying the SMF to release PDU session; the UDM device sends first subscription data to the AMF, and the AMF updates a PDU session establishment request corresponding to the target user before the target user is stopped based on the first subscription data, generates a stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF; the UDM device sends first subscription data to the SMF, and the SMF establishes a shutdown PDU session and a first IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, so that the UE performs shutdown and access to an IMS network and receives arrearage playback according to the corresponding PDU session. By the method and the device, the problem that the shutdown service is unreliable and the user experience is poor in the related technology is solved.

Description

Method, device, network element and storage medium for processing shutdown service

Technical Field

The present application relates to the field of 5G communications technologies, and in particular, to a method, an apparatus, a network element, and a storage medium for processing a shutdown service.

Background

In the related art, when a user stops in a 5GC network, an instruction of signing a stop data network name (Data Network Name, DNN) and deleting the data DNN is independently sent to the user through an operation and maintenance support system (Business and Operation Support System, BOOS); when the user is in a reset, the BOOS independently sends the subscription data DNN and the command for deleting the shutdown DNN to the user, so that the shutdown service in the 5GC network is realized. However, in the 5GC network, when the shutdown requirement is met, the bos is required to keep the relevant DNNs signed before the shutdown of the user, which causes high load of the bos system, meanwhile, in the related technology, when the user is shutdown, the bos system does not know which DNN data signed before the shutdown of the user, so that the effective shutdown cannot be realized, and when the bos system modifies the shutdown state of the user, the user kicks off the line, and the user kicking off the line does not automatically go on the line, needs to re-register, which causes unreliable shutdown service and poor user experience.

Aiming at the problems of unreliable shutdown service and poor user experience in the related technology, no effective solution exists yet.

Disclosure of Invention

The application provides a method, a device, a network element and a storage medium for processing a shutdown service, which are used for at least solving the problems of unreliable shutdown service and poor user experience in the related technology.

In a first aspect, the present application provides a method for processing a shutdown service, including: after the Unified Data Management (UDM) equipment modifies the state of User Equipment (UE) corresponding to a target user into a shutdown state, sending first deregistration notification information to an access and mobility management function (AMF) entity, so that the AMF can notify the UE to re-register and notify a session management entity (SMF) to release all Protocol Data Unit (PDU) sessions corresponding to the UE after responding to the first deregistration notification information; the UDM device sends first subscription data to the AMF sending a first acquisition request, wherein the first subscription data characterizes subscription for stopping a target user, the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF; the UDM device sends the first subscription data to the SMF which sends a second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first Internet protocol multimedia subsystem (IMS) PDU session based on the shutdown PDU session establishment request and the first subscription data, and the UE performs shutdown according to the shutdown PDU session, accesses an IMS network according to the first IMS PDU session and receives arrearage playback.

In a second aspect, the present application provides a shutdown service processing apparatus, including a UDM device, where the UDM device includes: a notification unit, configured to send first deregistration notification information to an access and mobility management function entity AMF after modifying a state of a user equipment UE corresponding to a target user to a down state, so that the AMF notifies the UE to perform re-registration and notifies a session management entity SMF to release all protocol data units PDU sessions corresponding to the UE after responding to the first deregistration notification information; a sending unit, configured to send first subscription data to the AMF that sends a first acquisition request, where the first subscription data characterizes a subscription that causes a target user to stop, and the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stop PDU session establishment request, and sends the request to the SMF; and the processing unit is used for sending the first subscription data to the SMF which sends a second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first Internet protocol multimedia subsystem (IMS) PDU session based on the shutdown PDU session establishment request and the first subscription data, and the UE performs shutdown according to the shutdown PDU session, accesses an IMS network according to the first IMS PDU session and receives arrearage playback.

In a third aspect, a network element is provided, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;

a memory for storing a computer program;

and the processor is used for realizing the steps of the shutdown service processing method according to any one of the embodiments of the first aspect when executing the program stored in the memory.

In a fourth aspect, a computer readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, implements the steps of the shutdown service processing method according to any of the embodiments of the first aspect.

Compared with the related art, the embodiment provides a method, a device, a network element and a storage medium for processing a shutdown service, wherein after the state of a UE corresponding to a target user is modified to be a shutdown state by adopting UDM equipment, first de-registration notification information is sent to an AMF, so that the AMF responds to the first de-registration notification information and then notifies the UE to re-register and notifies the SMF to release a PDU session corresponding to the UE; the UDM equipment sends first subscription data to an AMF sending a first acquisition request, the first subscription data represents subscription for stopping a target user, the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, and generates a corresponding stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF; the UDM device sends first subscription data to the SMF which sends a second acquisition request after receiving a shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, and enables UE to shutdown according to the shutdown PDU session, access an IMS network according to the first IMS PDU session and receive arrearage playback, the problems of unreliable shutdown service and poor user experience in the related art are solved, a shutdown operation is carried out by adopting a mode of inserting shutdown DNN, a BOSS is not required to store DNN signed by the user before shutdown, the requirement on a BOSS system is reduced, and the beneficial effects of improving user experience are achieved.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic flow chart of a method for processing a shutdown service according to an embodiment of the present application;

FIG. 2 is a schematic illustration of a shutdown procedure according to a preferred embodiment of the present application;

FIG. 3 is a schematic flow chart of a shutdown and re-registration in accordance with the preferred embodiment of the present application;

fig. 4 is a block diagram of a configuration of a shutdown service processing apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a network element according to an embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The various techniques described herein may be used for user outage, registration of multiple computers, control of subscription in 5G communication technologies.

First, related terms and prior art related to the embodiments of the present application are explained as follows:

5G core network (5G Core Network,5GC).

Unified data management (Unified Data Management, UDM).

Access and mobility management functions (Access and Mobility Management function, AMF).

Session management functions (Session Management function, SMF).

Data network name (Data Network Name, DNN).

DNN of DATA network (DATA DNN).

And stopping DNN (NoData DNN), and online recharging one specific DNN of the website.

Operation and maintenance support system (Business and Operation Support System, BOSS)

PDU (Protocol Data Unit) session, the protocol of the protocol layer exchanges information called protocol data units between peer layers.

The internet protocol multimedia subsystem (IP MulTImedia Subsystem, IMS) is a new form of multimedia service, which can meet the current requirements of more novel and diversified multimedia services for terminal clients; IMS is considered as a core technology of the next generation network, and is also an important way to solve the problem of integration of mobile and fixed networks and introduce differentiated services such as triple integration of voice, data and video.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 1 is a flow chart of a method for processing a shutdown service according to an embodiment of the present application. As shown in fig. 1, an embodiment of the present application provides a method for processing a shutdown service, including the following steps:

in step S101, after modifying the state of the UE corresponding to the target user to the down state, the UDM device sends first deregistration notification information to the AMF, so that the AMF responds to the first deregistration notification information, and then notifies the UE to re-register and notifies the SMF to release all PDU sessions corresponding to the UE.

In this embodiment, the UE is a user equipment, and the unified data management UDM, the access and mobility management function entity AMF, and the session management entity SMF are corresponding network elements respectively; in this embodiment, before the UDM device modifies the user state of the UE, the operation and operation support system (Business and Operation Support System, bos) will send a corresponding instruction to the UDM device, so that the UDM device modifies the user state to a down state; in this embodiment, the execution is that the target user still normally registers and accesses the IMS network in the shutdown state, and the shutdown and arrearage playback processes are completed; in this embodiment, after the UDM modifies the state of the target user to the down state, if the target user is online, that is, accesses the online recharging network but prohibits other data networks, the UDM directly sends unregistered communication information (for example, nudm_uecontext management_registration notification) to the AMF where the target user is located, where the unregistered communication information carries a corresponding reason (for example, registration_request); after the AMF receives the registration notification information, the registration information of the user is deleted, all PDU sessions are released through the SMF, and the UE is notified to perform re-registration; after that, the UE immediately initiates registration; in this embodiment, the SMF releases the PDU session by releasing the PDU session forwarding resource of the corresponding user through the user plane function network element UFP, thereby completing the release of the PDU session.

In step S102, the UDM device sends first subscription data to the AMF that sent the first acquisition request, where the first subscription data characterizes subscription that causes the target user to stop, and the AMF updates the PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stop PDU session establishment request, and sends the request to the SMF.

In this embodiment, after the UE initiates registration, the AMF acquires, from the UDM, subscription data corresponding to the target user before the outage, where the subscription data includes data DNN and IMS DNN, and after the UDM receives the first acquisition request sent by the AMF, the UDM replaces the data DNN in the subscription data corresponding to the target user with the outage DNN, and then sends the subscription data replaced with the outage DNN and the subscription data associated with unchanged IMS DNN as first subscription data to the AMF; in this embodiment, after receiving the first subscription data, the AMF parses the first subscription data, that is, at least parses the down DNN, and then corrects the access DNN of the PDU session establishment request corresponding to the subscription data before the target user is down based on the down DNN, that is, replaces the access DNN with the down DNN of the subscription, and then notifies the SMF based on the PDU session establishment request corresponding to the down DNN of the subscription, so as to establish a corresponding PDU session, where after the SMF establishes the corresponding PDU session, the SMF indicates that the user corresponding to the UE is in a down state, but the user may preset an online recharging website; meanwhile, the AMF also sends a PDU session establishment request corresponding to the unmodified IMS DNN to the SMF, and informs the SMF of establishing a PDU session added to the IMS network by the PDU session establishment request, so that after the SMF establishes the corresponding PDU session, the UE joins the IMS network and receives arrearage playback.

Step S103, the UDM device sends first subscription data to the SMF which sends a second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, and enables the UE to shutdown according to the shutdown PDU session, access an IMS network according to the first IMS PDU session and receive arrearage playback.

In this embodiment, after receiving a corresponding PDU session establishment request sent by the AMF, the SMF first requests to obtain corresponding first subscription data from the UDM device, and then characterizes subscription data for stopping the target user according to the first subscription data, for example: and stopping DNN, and establishing the corresponding PDU session, wherein the corresponding PDU session establishment request sent by the AMF is only a corresponding notification, and although the AMF has completed the correction of the corresponding DNN, the SMF cannot acquire the related data for establishing the PDU session from the PDU session establishment request corresponding to the AMF, namely does not acquire the related subscription information for establishing the PDU session from the PDU session establishment request sent by the AMF.

In this embodiment, the stopping of the UE according to the stopping PDU session is a subscription for which the relevant subscription corresponding to the UE is stopping, but the target user accesses a data network other than the preset online recharging website; and the first IMS PDU session established by SMF refers to a PDU session that enables the UE to join the IMS network and receive arrearage playback.

Through the steps S101 to S103, after modifying the state of the UE corresponding to the target user into the shutdown state by using the UDM device, sending first deregistration notification information to the AMF, so that after responding to the first deregistration notification information, the AMF notifies the UE to re-register and notifies the SMF to release the PDU session corresponding to the UE; the UDM equipment sends first subscription data to an AMF sending a first acquisition request, the first subscription data represents subscription for stopping a target user, the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, and generates a corresponding stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF; the UDM device sends first subscription data to the SMF which sends a second acquisition request after receiving a shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, and enables UE to shutdown according to the shutdown PDU session, access an IMS network according to the first IMS PDU session and receive arrearage playback, the problems of unreliable shutdown service and poor user experience in the related art are solved, a shutdown operation is carried out by adopting a mode of inserting shutdown DNN, a BOSS is not required to store DNN signed by the user before shutdown, the requirement on a BOSS system is reduced, and the beneficial effects of improving user experience are achieved.

In some embodiments, in order to achieve the data service access of the target user, that is, when the UE receives the arrearage playback, the following steps are further implemented:

step 21, after modifying the state of the UE into a re-machine state and enabling the target user who is down to be off line from the IMS network, the UDM device sends second deregistration notification information to the AMF, so that the AMF notifies the UE to perform re-machine re-registration after responding to the second deregistration notification information.

In this embodiment, before the UDM device modifies the user state of the UE to the reset state, the BOSS will send a corresponding instruction to the UDM device, so that the UDM device modifies the user state to the reset state; in this embodiment, a process that a target user accesses a data service is performed; in this embodiment, after the UDM modifies the state of the target user to a reset state, the UDM directly sends the unregistered communication information to the AMF where the target user is located, logs the user off line, and notifies the UE to perform the unregistering; thereafter, the UE immediately initiates registration.

Step 22, the UDM device sends second subscription data to the AMF sending the third acquisition request, where the second subscription data characterizes the subscription of the target user before the outage, and the AMF updates the outage PDU session establishment request based on the second subscription data, generates a corresponding outage PDU session establishment request, and sends the outage PDU session establishment request to the SMF.

In this embodiment, after the UE initiates registration, the AMF acquires, from the UDM, subscription data corresponding to the target user before the target user is turned on, where the subscription data includes a down DNN and an IMS DNN, and after the UDM receives the third acquisition request sent by the AMF, the UDM replaces the down DNN in the subscription data corresponding to the target user with a data DNN, and then sends the related subscription data replaced with the data DNN and the related subscription data of the unchanged IMS DNN to the AMF as second subscription data; in this embodiment, after receiving the second subscription data, the AMF parses the second subscription data, that is, at least parses out the stop data DNN, and then corrects the access DNN of the PDU session establishment request corresponding to the subscription data corresponding to the target user before the target user is on the basis of the data DNN, that is, replaces the access DNN with the subscribed data DNN, and then notifies the SMF based on the PDU session establishment request corresponding to the subscribed data DNN to establish a corresponding PDU session; meanwhile, the AMF also sends a PDU session establishment request corresponding to the unmodified IMS DNN to the SMF, and informs the SMF of establishing the PDU session added into the IMS network by the PDU session establishment request.

Step 23, the UDM device sends the second subscription data to the SMF that sends the fourth acquisition request after receiving the multiple PDU session establishment request, so that the SMF establishes a data service PDU session and a second IMS PDU session based on the multiple PDU session establishment request and the second subscription data, and the UE completes the multiple session according to the second IMS PDU session and the data service PDU session.

In this embodiment, after receiving a corresponding PDU session establishment request sent by the AMF, the SMF first requests to the UDM device to obtain corresponding second subscription data, and then, according to the second subscription data, characterizes subscription data for enabling the target user to answer, for example: and the data DNN is used for establishing the corresponding PDU session, the corresponding PDU session establishment request sent by the AMF is only a corresponding notice, and although the AMF has completed the correction of the corresponding DNN, the SMF cannot acquire the related data for establishing the PDU session from the PDU session establishment request corresponding to the AMF, namely, the related subscription information for establishing the PDU session is not acquired from the PDU session establishment request sent by the AMF.

In this embodiment, the SMF establishes the data service PDU session and the second IMS PDU session, so that the target user can reinitiate the data service PDU session and the IMS PDU session, and the connection is normally established, and the data service is normally used.

After the state of the UE is changed into a reset state and a target user who is stopped is disconnected from the IMS network, the UDM equipment in the steps sends second registration-removing notification information to the AMF, so that the AMF responds to the second registration-removing notification information and then notifies the UE to carry out reset re-registration; the UDM device sends second subscription data to an AMF sending a third acquisition request, wherein the second subscription data represents subscription before the target user is stopped, the AMF updates a stopping PDU session establishment request based on the second subscription data, and generates a corresponding multiplexing PDU session establishment request and sends the request to the SMF; the UDM device sends second subscription data to the SMF which sends a fourth acquisition request after receiving the multi-machine PDU session establishment request, so that the SMF establishes a data service PDU session and a second IMS PDU session based on the multi-machine PDU session establishment request and the second subscription data, and the UE completes multi-machine according to the second IMS PDU session and the data service PDU session, thereby realizing the realization of multi-machine service and improving the user experience.

In some embodiments, the first subscription data includes a subscribed shutdown data network name DNN and a first IMS DNN, and the AMF updates a PDU session establishment request corresponding to the target user before shutdown based on the first subscription data, generates a corresponding shutdown PDU session establishment request, and sends the request to the SMF, where the steps are implemented by:

step 31, the AMF detects a data service and a first PDU session establishment request and a first IMS PDU session establishment request corresponding to the IMS network in a PDU session establishment request corresponding to the target user before stopping, where an access DNN of the first IMS PDU session establishment request is a first IMS DNN.

Step 32, the AMF updates the access DNN of the first PDU session establishment request to the shutdown DNN to obtain a second PDU session establishment request.

Step 33, the AMF sends the second PDU session establishment request and the first IMS PDU session establishment request as a shutdown PDU session establishment request to the SMF.

In this embodiment, after the AMF receives the first subscription data, the AMF analyzes the first subscription data, that is, analyzes the down DNN and the IMS DNN, and corrects the access DNN requested for establishing a session with the first PDU based on the down DNN, that is, replaces the access DNN with the down DNN for the subscription; meanwhile, for the first IMS PDU session establishment request, the AMF may send the request directly to the SMF, since the corresponding DNN is not modified.

Detecting a data service, a first PDU (protocol data unit) session establishment request and a first IMS PDU session establishment request corresponding to an IMS network respectively in a PDU session establishment request corresponding to a target user before stopping the mobile terminal through the AMF in the steps, wherein an access DNN of the first IMS PDU session establishment request is a first IMS DNN; the AMF updates the access DNN of the first PDU session establishment request into the shutdown DNN to obtain a second PDU session establishment request; the AMF takes the second PDU session establishment request and the first IMS PDU session establishment request as a shutdown PDU session establishment request and sends the shutdown PDU session establishment request to the SMF, so that shutdown DNN is inserted in the PDU session establishment request, thereby enabling the SMF to establish the shutdown PDU session and the first IMS PDU session according to the corresponding session request, and enabling the UE to shutdown (change of subscription information corresponding to shutdown, limit access to a data network outside a preset online recharging network) and access to the IMS network and receive arrearage playback according to the first IMS PDU session.

In some of these embodiments, the SMF establishes a shutdown PDU session and an internet protocol multimedia subsystem, IMS PDU, session based on the shutdown PDU session establishment request and the first subscription data by:

step 41, the SMF acquires the down DNN and the first IMS DNN from the first subscription data.

Step 42, the SMF establishes a shutdown PDU session based on the received second PDU session establishment request and the shutdown DNN, and establishes a first IMS PDU session based on the received first IMS PDU session establishment request and the first IMS DNN.

In this embodiment, the SMF receives the second PDU session establishment request and the first IMS PDU session establishment request, acquires the shutdown DNN and the first IMS DNN from the UDM, and the UDM replaces the data DNN in the corresponding subscription data with the shutdown DNN and then sends the data DNN to the SMF, and simultaneously sends the corresponding IMS DNN, that is, the first IMS DNN to the SMF, and then the SMF establishes the shutdown PDU session based on the received second PDU session establishment request and the shutdown DNN, and establishes the first IMS PDU session based on the received first IMS PDU session establishment request and the first IMS DNN.

Acquiring a shutdown DNN and a first IMS DNN from the first subscription data through the SMF in the steps; the SMF establishes a shutdown PDU session based on the received second PDU session establishment request and a shutdown DNN, and establishes a first IMS PDU session based on the received first IMS PDU session establishment request and the first IMS DNN, so that the SMF establishes a corresponding PDU session based on subscription data inserted with at least the shutdown DNN, thereby realizing that the UE responds to shutdown and still can normally register and access an IMS network, and completing arrearage playback reminding by the IMS network.

In some embodiments, the second subscription data includes a subscribed data DNN and a second IMS DNN, and the AMF updates the shutdown PDU session establishment request based on the second subscription data, generates a corresponding shutdown PDU session establishment request, and sends the request to the SMF, where the step is implemented by:

step 51, the AMF obtains the second PDU session establishment request and the first IMS PDU session establishment request from the shutdown PDU session establishment request.

Step 52, the AMF updates the shutdown DNN in the second PDU session establishment request to a data DNN, generates a third PDU session establishment request, and uses the first IMS PDU session establishment request as a second IMS PDU session establishment request corresponding to the multiplex service, where an access DNN of the second IMS PDU session establishment request is the second IMS DNN.

Step 53, the AMF sends the third PDU session establishment request and the second IMS PDU session establishment request to the SMF as a multiplex PDU session establishment request.

In this embodiment, after the AMF receives the second subscription data, the AMF parses the second subscription data, that is, parses the data DNN and the second IMS DNN, and corrects the shutdown DNN requested for establishing a session with the second PDU based on the data DNN, that is, replaces the shutdown DNN with the subscribed data DNN; meanwhile, for the first IMS PDU session establishment request, the corresponding DNN is not modified, so that the first IMS PDU session establishment request is defaulted to a second IMS PDU session establishment request, and the AMF directly sends the request to the SMF.

Acquiring a second PDU session establishment request and a first IMS PDU session establishment request from the shutdown PDU session establishment request through the AMF in the steps; the AMF updates the shutdown DNN in the second PDU session establishment request into data DNN, generates a third PDU session establishment request, and takes the first IMS PDU session establishment request as a second IMS PDU session establishment request corresponding to the multiplex service, wherein the access DNN of the second IMS PDU session establishment request is the second IMS DNN; the AMF sends the third PDU session establishment request and the second IMS PDU session establishment request as a multiplex PDU session establishment request to the SMF, so that the data DNN is inserted in the PDU session establishment request, thereby enabling the SMF to establish a data service PDU session and a second IMS PDU session according to the corresponding session request, and enabling the UE to normally perform communication services, such as: a corresponding data network is accessed.

In some embodiments, the SMF establishes a data service PDU session and a second IMS PDU session based on the multiplex PDU session establishment request and the second subscription data by:

step 61, the SMF acquires the data DNN and the second IMS DNN from the second subscription data.

Step 62, the SMF establishes a data service PDU session based on the received third PDU session establishment request and the data DNN, and establishes a second IMS PDU session based on the received second IMS PDU session establishment request and the second IMS DNN.

In this embodiment, the SMF receives the third PDU session establishment request and the second IMS PDU session establishment request, acquires the data DNN and the second IMS DNN from the UDM (where the DNNs of the first IMS DNN and the second IMS DNN are not replaced, and in this embodiment, are referred to by the first and second embodiments only), and the UDM replaces the shutdown DNN in the corresponding subscription data with the data DNN and sends the data DNN to the SMF, and simultaneously sends the corresponding IMS DNN, that is, the second IMS DNN, to the SMF, and then, the SMF establishes a data service PDU session based on the received third PDU session establishment request and the data DNN, and establishes a second IMS PDU session based on the received second IMS PDU session establishment request and the second IMS DNN.

Acquiring data DNN and second IMS DNN from the second subscription data through the SMF in the steps; the SMF establishes a data service PDU session based on the received third PDU session establishment request and the data DNN, and establishes a second IMS PDU session based on the received second IMS PDU session establishment request and the second IMS DNN, so that the SMF establishes a corresponding PDU session based on the data DNN to be inserted and the subscription data of the IMS DNN in the multiplexing process, and the UE can normally perform communication service after recharging.

In some of these embodiments, the UDM device further performs the steps of: before sending the first subscription data to the AMF sending the first acquisition request, the UDM device updates the data DNN in the subscription data corresponding to the target user before the outage to the outage DNN, and/or before sending the second subscription data to the AMF sending the third acquisition request, the UDM device updates the outage DNN in the subscription data corresponding to the target user before the outage to the data DNN.

Fig. 2 is a schematic diagram of a shutdown procedure according to a preferred embodiment of the present application, fig. 3 is a schematic diagram of a shutdown and re-registration procedure according to a preferred embodiment of the present application, and the following description will refer to fig. 2 for a related flow of shutdown according to a preferred embodiment of the present application, where the flow includes the following steps:

step 1, when the target user is owed, the BOSS system (e.g., CRM system) sends an instruction to the UDM to modify the user status to a down status (corresponding to (1) in FIG. 2).

Step 2, the UDM modifies the subscription data of the target user, and if the target user is online, the UDM directly sends a notification message (corresponding to (2) in fig. 2) to the AMF where the user is located.

Step 3, the AMF receives the de-registration notification message, deletes the registration information of the user, notifies the SMF to release all PDU sessions (corresponding to (4) in fig. 2), and notifies the UE to re-register (corresponding to (3) in fig. 2).

Step 4, the SMF informs the user plane management network element (User plane Function, UPF) to release the PDU session forwarding resources corresponding to the target user (corresponding to (5) and (6) in fig. 2), and release the related session.

Step 5, the SMF sends a charging termination message to the charging platform (corresponding to (7) in fig. 2).

In some alternative embodiments, when the UE re-initiates registration, PDU session establishment is actively initiated, and then the network side implements user traffic redirection. The following describes the related procedure from the UE to the re-initiation of registration with reference to fig. 3, which includes the following steps:

step 1, the UE reestablishes the PDU session, and initiates a PDU session establishment request (corresponding to (1) in fig. 3).

Step 2, the AMF acquires subscription data from the UDM, the UDM dynamically replaces data DNN in the subscription data corresponding to the target user before stopping with stopping DNN, and then sends the data DNN to the AMF, does not perform special treatment on IMS DNN, and sends the data DNN to the AMF (corresponding to (2) in fig. 3);

step 3, AMF analyzes the subscription data, corrects PDU session access DNN in the subscription data corresponding to the target user before stopping, and notifies SMF to establish corresponding PDU session, namely sends corresponding PDU session establishment request (corresponding to (3) in figure 3);

Step 4, the SMF receives the corresponding PDU session establishment request, acquires the subscription data related to the target user session from the UDM, and replaces the data DNN in the subscription data corresponding to the UDM with the shutdown DNN and sends the data DNN to the SMF (corresponding to (4) in fig. 3), and the SMF establishes the PDU session for the DNN.

Step 5, the SMF configures a local strategy name, and the UPF configures a local strategy of the shutdown DNN, and service blocking of the shutdown DNN is realized by configuring the local strategy; the SMF then issues the local policy to the UPF (corresponding to (5) in fig. 3), which establishes a PDU session for the user according to the shutdown DNN, and executes the local policy corresponding to the DNN.

And 6, once the user initiates the service flow, the UPF redirects the message of the user according to the configured local rule, and guides the user to access the recharging page.

And 7, the SMF adopts free charging to the data service flow of the user according to the charging rule, and sends the offline charging message to a charging platform (corresponding to (6) in fig. 3).

By adopting the steps in the embodiment, when a shutdown DNN mode is adopted for shutdown operation of a system operator/operation maintenance personnel, the BOSS is not required to store DNN signed by a user before shutdown, so that the requirement on the BOSS system is reduced, and the problems of unreliable shutdown service, poor user experience, and influence on network indexes and network performance in the related technology are effectively solved; meanwhile, arrearage playback and recharging service are automatically provided for 5G shutdown users, the user terminal does not feel, and the user experience is better.

The embodiment also provides a device for processing a shutdown service, which is used for implementing the foregoing embodiment and the preferred implementation manner, and is not described in detail. The terms "module," "unit," "sub-unit," and the like as used below may refer to a combination of software and/or hardware that performs a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.

Fig. 4 is a block diagram of a configuration of a service processing apparatus for shutdown according to an embodiment of the present application, and as shown in fig. 4, the apparatus includes a UDM device, where the UDM device includes:

a notification unit 41, configured to send first deregistration notification information to an access and mobility management function entity AMF after modifying a state of a user equipment UE corresponding to a target user to a down state, so that the AMF, after responding to the first deregistration notification information, notifies the UE to re-register and notifies a session management entity SMF to release all protocol data units PDU sessions corresponding to the UE;

a sending unit 42, coupled to the notification unit 41, configured to send first subscription data to an AMF that sends a first acquisition request, where the first subscription data characterizes a subscription that causes a target user to stop, and the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stop PDU session establishment request, and sends the request to the SMF;

And a processing unit 43, coupled to the sending unit 42, configured to send the first subscription data to the SMF that sends the second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first internet protocol multimedia subsystem IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, and causes the UE to shutdown according to the shutdown PDU session, access the IMS network according to the first IMS PDU session, and receive the arrearage playback.

According to the shutdown service processing device, after the UDM equipment is adopted to modify the state of the UE corresponding to the target user into the shutdown state, first deregistration notification information is sent to the AMF, so that the AMF responds to the first deregistration notification information and then notifies the UE to re-register and notifies the SMF to release the PDU session corresponding to the UE; the UDM equipment sends first subscription data to an AMF sending a first acquisition request, the first subscription data represents subscription for stopping a target user, the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, and generates a corresponding stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF; the UDM device sends first subscription data to the SMF which sends a second acquisition request after receiving a shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first IMS PDU session based on the shutdown PDU session establishment request and the first subscription data, and enables UE to shutdown according to the shutdown PDU session, access an IMS network according to the first IMS PDU session and receive arrearage playback, the problems of unreliable shutdown service and poor user experience in the related art are solved, a shutdown operation is carried out by adopting a mode of inserting shutdown DNN, a BOSS is not required to store DNN signed by the user before shutdown, the requirement on a BOSS system is reduced, and the beneficial effects of improving user experience are achieved.

In some of these embodiments, after the UE receives the arrearage playback, the UDM device is further configured to: after the state of the UE is changed into a re-machine state and a target user who is stopped is disconnected from the IMS network, sending second de-registration notification information to the AMF, so that the AMF responds to the second de-registration notification information and then notifies the UE to re-register; sending second subscription data to an AMF sending a third acquisition request, wherein the second subscription data represents subscription before the target user is stopped, updating a stopping PDU (protocol data unit) session establishment request by the AMF based on the second subscription data, generating a corresponding repeated PDU session establishment request and sending the request to the SMF; and sending second subscription data to the SMF which sends a fourth acquisition request after receiving the multiplex PDU (protocol data unit) session establishment request, so that the SMF establishes a data service PDU (protocol data unit) session and a second IMS PDU session based on the multiplex PDU session establishment request and the second subscription data, and the UE completes multiplex according to the second IMS PDU session and the data service PDU session.

In some embodiments, the first subscription data includes a subscribed shutdown data network name DNN and a first IMS DNN, and the sending unit 42 is further configured to enable the AMF to detect, in a PDU session establishment request corresponding to the target user before shutdown, a first PDU session establishment request and a first IMS PDU session establishment request corresponding to the IMS network, respectively, where an access DNN of the first IMS PDU session establishment request is the first IMS DNN; updating the access DNN of the first PDU session establishment request into a shutdown DNN to obtain a second PDU session establishment request; the second PDU session establishment request and the first IMS PDU session establishment request are sent to the SMF as a drop PDU session establishment request.

In some of these embodiments, the processing unit 43 is further configured to cause the SMF to obtain the down DNN and the first IMS DNN from the first subscription data; a shutdown PDU session is established based on the received second PDU session establishment request and the shutdown DNN, and a first IMS PDU session is established based on the received first IMS PDU session establishment request and the first IMS DNN.

In some of these embodiments, the second subscription data includes a subscribed data DNN and a second IMS DNN, the apparatus further configured to cause the AMF to obtain a second PDU session establishment request and a first IMS PDU session establishment request in the shutdown PDU session establishment request; updating a shutdown DNN in the second PDU session establishment request into a data DNN, generating a third PDU session establishment request, and taking the first IMS PDU session establishment request as a second IMS PDU session establishment request corresponding to a multiplex service, wherein the access DNN of the second IMS PDU session establishment request is the second IMS DNN; the third PDU session establishment request and the second IMS PDU session establishment request are sent to the SMF as a multiplex PDU session establishment request.

In some of these embodiments, the apparatus is further configured to cause the SMF to obtain the data DNN and the second IMS DNN from the second subscription data; establishing a data service PDU session based on the received third PDU session establishment request and the data DNN, and establishing a second IMS PDU session based on the received second IMS PDU session establishment request and the second IMS DNN.

In some embodiments, before sending the first subscription data to the AMF that sent the first acquisition request, the UDM device is further configured to update the data DNN in the subscription data corresponding to the target user before the outage to the outage DNN, and/or before sending the second subscription data to the AMF that sends the third acquisition request, the UDM device is further configured to update the outage DNN in the subscription data corresponding to the target user before the outage to the data DNN.

Fig. 5 is a schematic structural diagram of a network element according to an embodiment of the present application, as shown in fig. 5, and the embodiment of the present application provides a network element, which includes a processor 51, a communication interface 52, a memory 53, and a communication bus 53, where the processor 51, the communication interface 52, and the memory 53 complete communication with each other through the communication bus 54,

a memory 53 for storing a computer program;

the processor 51 is configured to execute the program stored in the memory 53, thereby implementing the method steps in fig. 1.

The processing in the electronic device implements the method steps in fig. 1, and the technical effects brought by the processing in the electronic device are consistent with those of the embodiment executing the shutdown service processing method in fig. 1, which is not described herein again.

The communication bus mentioned by the network element may be a peripheral component interconnect standard (Peripheral Component Interconnect, abbreviated as PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.

The communication interface is used for communication between the terminal and other devices.

The memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

The present application further provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the shutdown service processing method provided in any one of the method embodiments described above.

In yet another embodiment provided herein, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps of the shutdown service processing method of any of the above embodiments.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. A method for processing a shutdown service, comprising:

after the Unified Data Management (UDM) equipment modifies the state of User Equipment (UE) corresponding to a target user into a shutdown state, sending first deregistration notification information to an access and mobility management function (AMF) entity, so that the AMF can notify the UE to re-register and notify a session management entity (SMF) to release all Protocol Data Unit (PDU) sessions corresponding to the UE after responding to the first deregistration notification information;

the UDM device sends first subscription data to the AMF sending a first acquisition request, wherein the first subscription data characterizes subscription for stopping a target user, the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stopping PDU session establishment request and sends the stopping PDU session establishment request to the SMF;

The UDM device sends the first subscription data to the SMF which sends a second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first Internet protocol multimedia subsystem (IMS) PDU session based on the shutdown PDU session establishment request and the first subscription data, and the UE performs shutdown according to the shutdown PDU session, accesses an IMS network according to the first IMS PDU session and receives arrearage playback.

2. The method of claim 1, wherein after the UE receives arrearage playback, the method further comprises:

after the state of the UE is changed into a re-machine state and the target user who is stopped is disconnected from the IMS network, the UDM equipment sends second de-registration notification information to the AMF, so that the AMF responds to the second de-registration notification information and notifies the UE to perform re-machine re-registration;

the UDM device sends second subscription data to the AMF sending a third acquisition request, wherein the second subscription data characterizes subscription before the target user stops, the AMF updates the stop PDU session establishment request based on the second subscription data, generates a corresponding multi-machine PDU session establishment request and sends the request to the SMF;

And the UDM equipment sends the second subscription data to the SMF which sends a fourth acquisition request after receiving the multiplex PDU (protocol data unit) session establishment request, so that the SMF establishes a data service PDU (protocol data unit) session and a second IMS PDU session based on the multiplex PDU session establishment request and the second subscription data, and the UE completes multiplex according to the second IMS PDU session and the data service PDU session.

3. The method of claim 2, wherein the first subscription data includes a subscribed shutdown data network name DNN and a first IMS DNN, wherein the AMF updates a corresponding PDU session establishment request before shutdown of the target user based on the first subscription data, generates a corresponding shutdown PDU session establishment request, and sends the request to the SMF, comprising:

the AMF detects a data service, a first PDU (protocol data unit) session establishment request and a first IMS PDU session establishment request corresponding to an IMS network in a PDU session establishment request corresponding to the target user before stopping, wherein an access DNN (digital network management network) of the first IMS PDU session establishment request is the first IMS DNN;

the AMF updates the access DNN of the first PDU session establishment request to the shutdown DNN to obtain a second PDU session establishment request;

The AMF takes the second PDU session establishment request and the first IMS PDU session establishment request as the shutdown PDU session establishment request and sends the shutdown PDU session establishment request to the SMF.

4. The method of claim 3, wherein the SMF establishes a shutdown PDU session and an internet protocol multimedia subsystem, IMS, PDU session based on the shutdown PDU session establishment request and the first subscription data, comprising:

the SMF acquires the shutdown DNN and the first IMS DNN from the first subscription data;

the SMF establishes the shutdown PDU session based on the received second PDU session establishment request and the shutdown DNN, and establishes the first IMS PDU session based on the received first IMS PDU session establishment request and the first IMS DNN.

5. A method according to claim 3, wherein the second subscription data includes a subscribed data DNN and a second IMS DNN, the AMF updates the shutdown PDU session establishment request based on the second subscription data, generates a corresponding multiplex PDU session establishment request and sends to the SMF, comprising:

the AMF acquires the second PDU session establishment request and the first IMS PDU session establishment request from the shutdown PDU session establishment request;

The AMF updates the shutdown DNN in the second PDU session establishment request into the data DNN, generates a third PDU session establishment request, and takes the first IMS PDU session establishment request as a second IMS PDU session establishment request corresponding to a multi-machine service, wherein the access DNN of the second IMS PDU session establishment request is the second IMS DNN;

the AMF sends the third PDU session establishment request and the second IMS PDU session establishment request to the SMF as the multiplex PDU session establishment request.

6. The method of claim 5, wherein the SMF establishes a data service PDU session and a second IMS PDU session based on the multiplex PDU session establishment request and the second subscription data, comprising:

the SMF acquires the data DNN and the second IMS DNN from the second subscription data;

the SMF establishes the data service PDU session based on the received third PDU session establishment request and the data DNN, and establishes the second IMS PDU session based on the received second IMS PDU session establishment request and the second IMS DNN.

7. A method according to claim 3, wherein the UDM device updates the data DNN in the subscription data corresponding to the target user before shutdown to shutdown DNN before sending the first subscription data to the AMF that issued the first acquisition request.

8. The method of claim 5, wherein the UDM device updates a down DNN in the subscription data corresponding to the target user before the target user is on-line to a data DNN before sending the second subscription data to the AMF that sent the third acquisition request.

9. A shutdown service processing apparatus, comprising a UDM device, wherein the UDM device comprises:

a notification unit, configured to send first deregistration notification information to an access and mobility management function entity AMF after modifying a state of a user equipment UE corresponding to a target user to a down state, so that the AMF notifies the UE to perform re-registration and notifies a session management entity SMF to release all protocol data units PDU sessions corresponding to the UE after responding to the first deregistration notification information;

a sending unit, configured to send first subscription data to the AMF that sends a first acquisition request, where the first subscription data characterizes a subscription that causes a target user to stop, and the AMF updates a PDU session establishment request corresponding to the target user before stopping based on the first subscription data, generates a corresponding stop PDU session establishment request, and sends the request to the SMF;

And the processing unit is used for sending the first subscription data to the SMF which sends a second acquisition request after receiving the shutdown PDU session establishment request, so that the SMF establishes a shutdown PDU session and a first Internet protocol multimedia subsystem (IMS) PDU session based on the shutdown PDU session establishment request and the first subscription data, and the UE performs shutdown according to the shutdown PDU session, accesses an IMS network according to the first IMS PDU session and receives arrearage playback.

10. The network element is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

a processor for implementing the steps of the shutdown service processing method of any of claims 1 to 8 when executing a program stored on a memory.

11. A computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the shutdown service processing method according to any of claims 1 to 8.