WO2019223478A1

WO2019223478A1 - Information processing method and apparatus, network element and storage medium

Info

Publication number: WO2019223478A1
Application number: PCT/CN2019/083753
Authority: WO
Inventors: 苑红; 李爱华
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2018-05-21
Filing date: 2019-04-22
Publication date: 2019-11-28
Also published as: CN110519712B; CN110519712A

Abstract

Disclosed are an information processing method and apparatus where a user equipment (UE) is in a radio resource control (RRC) layer inactive state, a network element and a storage medium. The method comprises: when a network function (NF) invokes a first operation of a first service of an access management function (AMF), if the UE is in the radio resource control layer inactive state, the AMF notifying a radio access network (RAN) to page the UE.

Description

Information processing method and device, network element and storage medium

Cross-reference to related applications

This application is based on a Chinese patent application with an application number of 201810491214.1 and an application date of May 21, 2018, and claims the priority of the Chinese patent application. The entire contents of this Chinese patent application are incorporated herein by reference.

Technical field

The present invention relates to the field of communication technology, but is not limited to the field of communication technology, and in particular, to an information processing method and device in a user equipment (User Equipment (UE) Radio Resource Control (RRC) layer inactive) layer inactive state, Network elements and storage media.

Background technique

During the communication process, it was found that sometimes the Network Function (NF) interacted with the UE through the service of the Access Management Function (AMF), but the message could not reach the UE, resulting in a high failure rate of information transmission. The problem.

Summary of the Invention

In view of this, embodiments of the present invention are expected to provide a method and device for processing information in a UE RRC inactive state, a network element, and a storage medium.

The technical solution of the present invention is implemented as follows:

In a first aspect, an embodiment of the present invention provides an information processing method in a user equipment UE radio resource control layer inactive state, including:

When the network function NF calls the first service first operation of the access management function AMF, if the UE is in an inactive state of the radio resource control layer, the AMF notifies the radio access network RAN to page the UE.

In a second aspect, an embodiment of the present invention provides an information processing method in a user equipment UE radio resource control layer inactive state, including:

The radio access network RAN receives a notification of paging the UE sent by the access management function AMF;

Paging the UE in a radio resource control layer inactive state according to the notification.

According to a third aspect, an embodiment of the present invention provides an information processing apparatus in a user equipment UE radio resource control layer inactive state, including:

A notification module configured to, when the network function NF calls the first service first operation of the access management function AMF, if the UE is in the radio resource control layer inactive state, the AMF notifies the radio access network RAN to find Call the UE.

According to a fourth aspect, an embodiment of the present invention provides an information processing apparatus in a user equipment UE radio resource control layer inactive state, including:

A receiving module configured to receive, by a radio access network RAN, a notification of a paging UE sent by an access management function AMF;

A paging module configured to page the UE in a radio resource control layer inactive state according to the notification.

In a fifth aspect, an embodiment of the present invention provides a network element, including:

Memory,

The processor is connected to the memory and configured to implement the method according to any one of the first aspect or the second aspect by executing computer executable code stored in the memory.

According to a sixth aspect, an embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer-executable code; after the computer-executable code is executed, the technical solution of any of the first aspect or the second aspect The method described.

The information processing method and device, network element, and storage medium of the UE in the RRC inactive state provided by the embodiment of the present invention. If the AMF is called by a NF for a certain service and an operation, the service and / or the operation are related to the UE (for example, , Need to send and receive information with the UE). The UE in the RRC layer inactive state may not receive the corresponding NAS message and other messages. Therefore, in this embodiment of the present invention, if the UE is in the RRC layer inactive state, the AMF first informs the RAN to page the UE. The UE is switched to the RRC layer connection state through paging. In this way, the AMF provides corresponding services or operations to ensure that the UE receives the corresponding message, thereby ensuring the successful transmission of the message, and improving the success rate of message transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic flowchart of a first UE information processing method in an RRC layer in an inactive state according to an embodiment of the present invention; FIG.

FIG. 2 is a schematic flowchart of a second UE information processing method in an RRC layer inactive according to an embodiment of the present invention; FIG.

3 is a schematic flowchart of a third UE information processing method in an RRC layer inactive according to an embodiment of the present invention;

FIG. 4 is a schematic flowchart of a fourth UE information processing method in an RRC layer inactive according to an embodiment of the present invention; FIG.

5 is a schematic structural diagram of an information processing apparatus in a UE RRC layer inactive state according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another information processing apparatus in an RRC layer inactive according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic flowchart of a fifth UE information processing method in an RRC layer inactive according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a network element according to an embodiment of the present invention.

Detailed ways

The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments of the specification.

As shown in FIG. 2, an information processing method in a UE RRC layer inactive state includes:

Step S110: When the NF invokes the first service first operation of the AMF, if the UE is in an inactive state of the radio resource control layer, the AMF notifies the RAN to page the UE.

This embodiment is applied to the AMF. If the NF sends a call request to the AMF to call the first service and the first operation of the AMF, it is found that the UE is in the RRC layer inactive state. If the UE is in the RRC layer inactive state, the AMF and the The message transmission between UEs fails, for example, the AMF fails to send a non-access stratum (NAS) message to the UE, and so on, which causes a problem of the draft of the message transmission failure between the AMF and the UE. In this embodiment, the AMF first pages the UE through the RAN. The RAN may include: a base station or a relay node connected to the base station, and the like.

By paging the UE, the UE can be switched from the RRC layer inactive state to the RRC layer connected state (connected), and the UE switched to the RRC layer connected state has established a connection with the RAN, so that it can receive messages sent by the AMF In this way, the probability that the UE fails to receive messages can be reduced, and the success rate of information interaction between the AMF and the UE can be improved.

In some embodiments, the step S110 may include: the AMF notifies the RAN to page the UE through an N2 interface message.

An N2 interface is set between the AMF and the RAN, and a message transmitted through the N2 interface may be referred to as an N2 interface message. In this embodiment, the AMF instructs the RAN to page the UE through an N2 interface message.

The N2 interface message carries the identification information of the UE that needs to be paged and the cell or tracking area where the UE may be located. In this way, the RAN knows to paging the UE in that cell or tracking area to avoid paging the entire network or Paging the UE within the entire registration area of the UE reduces the time delay and power consumption of the paging UE. For example, according to the last cell or tracking area where the UE switched from the RRC layer connected state to the RRC layer inactive state as the area where the UE is preferentially paged, if it is not paged, the UE is paged in the entire registered area of the UE.

In some embodiments, as shown in FIG. 2, the method further includes:

Step S120: Receive a paging result returned by the RAN.

In this embodiment, the RAN will page the UE based on the notification of the paging UE sent by the AMF, and obtain the paging result of the UE. The paging result may include: paging success and paging failure.

The first service first operation can be understood as: the first operation of the first service. The first service may be a function provided by the AMF; the first operation may be providing one or more operations performed in the first service.

In some implementations, the first service is: an AMF called service, and the first operation is: enabling a UE reachable operation. The AMF called service is: enabling UE reachable service. The NF may invoke the AMF called service by enabling a UE reachability request (Namf_MT_EnableUEReachability request). In other implementations, the first service is an AMF communication service, and the first operation is an N1N2 interface message transmission operation. The AMF communication service may include a N1N2 interface message transmission service. For example, the NF may call the AMF communication service of the AMF through a N1N2 interface message transmission request (Namf_Communication_N1N2MessageTransfer request). The first operation is an N1N2 interface message transmission operation. The N1N2 interface message transmission here may include: an operation of transmitting messages through the N1 interface and the N2 interface. The N1 interface is an interface between the RAN and the UE, and the N2 interface is an interface between the AMF and the RAN. In some embodiments, if the first service is an AMF called service, the method further includes: after the network function NF invokes the first operation of the first service, the AMF response response message notifies the NF of the UE Page results. For example, the AMF notifies the NF of the paging result of the UE by enabling a UE reachability response message.

The enable UE reachable response (Namf_MT_EnableUEReachabilityresponse) message informs the NE of the paging result of the current UE. The paging result may be a result of the UE's paging success, or a result of the UE's paging failure. Optionally, the method further includes: if the UE is successfully paged, sending an N1 N2 interface message transmission response (Namf_Communication_N1N2MessageTransfer response) to the NF. At this time, if the UE is paged successfully, the AMF may send a N1N2 interface message transmission response to the corresponding NF, and the response may carry relevant information transmitted by the NAS Protocol Data Unit (PDU) carried in the N1N2 interface message transmission request. Transmission result or transmission status. The transmission result may include: transmission success or transmission failure. The transmission status may include: the AMF has been received, the AMF has been sent to the UE, and the like. The N1N2 interface message transmission response may also carry a UE paging success message. In some embodiments, the response may not be changed, and may only carry information related to NAS PDU transmission, so that it is highly compatible with the prior art. The NAS PDU causes the AMF to send the NAS PDU to the UE through a NAS message.

In some embodiments, after the network function NF invokes the first service first operation, the AMF response response message notifies the NF of the paging result of the UE, including: calling the first service in the NF. After serving the first operation, the AMF notifies the NF that the UE is unreachable through the response message when the UE fails to page.

In some embodiments, the method further includes:

If the paging of the UE fails, an N1 N2 interface message transmission response is sent to the NF, where the N1 N2 interface message transmission response carries an indication that the UE has failed to page.

In this embodiment, if the UE paging fails, the NAS PDU required to be transmitted in the AMF communication service may not be able to be transmitted. The N1 and N2 interface message transmission response described in this embodiment indicates the indication of the UE paging failure. Notify NF of the current NAS PDU transmission result. The indication of the UE paging failure may be one or more bits, may be one or more bits indicating transmission failure in the N1 N2 interface message transmission response, or may be a reserved bit in the N1 N2 interface message transmission response. Give instructions. The N1N2 interface message includes a message transmitted through the N1 interface and / or a message transmitted through the N2 interface. The N2 interface is an interface between the AMF and the RAN, and the N1 interface is an interface between the RAN and the UE.

In some embodiments, the NF is one of the following: SMSF, PCF, SMF, LMF.

As shown in FIG. 3, this embodiment provides a method for processing information in a UE radio resource control layer inactive state, including:

Step S210: the RAN receives a notification of paging the UE sent by the AMF;

Step S220: paging the UE in the radio resource control layer inactive state according to the notification.

The RAN will receive the notification of the paging UE sent by the AMF, and the notification may carry information such as the identity of the UE to be paged and the area of the paging UE. After the RAN receives the paging message sent by broadcast, if the UE receives the paging message, it will switch from the RRC layer inactive state to the RRC layer connected state. After switching to the RRC layer connected state, the UE can receive all It describes the various messages sent by the AMF and / or RAN, such as NAS messages; thereby avoiding the problem of failure of receiving the message caused by the UE being in the RRC layer inactive state. In some embodiments, the step S110 may include:

The RAN receives a notification for paging the UE sent by the AMF through an N2 interface message.

In this embodiment, the notification of paging the UE is received through an N2 interface message.

As shown in FIG. 4, the method further includes:

Step S230: Send the paging result of the UE to the AMF.

If the UE is paged, it will switch to the RRC layer connection state. During the process of switching to the RRC layer connection state, the UE will send various information such as a connection request to the RAN, so that the RAN can know whether the current UE has switched to the RRC layer connection state. . If the UE successfully switches to the RRC layer connection state, it indicates that the UE is successfully paged. If the UE remains in the RRC layer inactive state, it indicates that the UE has not been successfully paged.

If the UE is paged, it indicates that the UE is reachable, and the AMF notifies the AMF that the UE is reachable or unreachable as a paging result, so that the AMF is equivalent to receiving the paging result. Of course, the AMF may also directly receive the paging result sent by the RAN, for example, using one or more bits to indicate the paging result of the current UE. The paging result may be carried by various messages.

As shown in FIG. 5, an embodiment of the present invention provides an information processing apparatus in a UE RRC layer inactive state, including:

The notification module 110 is configured to notify the radio access network RAN to page the UE when the UE is in an inactive state of the RRC layer of the radio resource control when the NF calls the first service and the first operation of the AMF. .

The information processing device in the UE RRC layer inactive state may be a processing device applied in the AMF, and in the implementation of the present invention, the AMF may be a network element with an access management function.

In this implementation, the notification module 110, when the NF calls the first service and the first operation of the AMF, finds that the UE is in the RRC layer inactive state, and then pages the UE through the RAN.

In some embodiments, the notification module 110 is specifically configured to notify the RAN to page the UE through an N2 interface message.

In some embodiments, the information processing apparatus in the UE RRC layer inactive state further includes:

The receiving module 120 is configured to receive a paging result returned by the RAN.

Both the notification module 110 and the receiving module 120 can be program modules. After the program modules are executed by the processor, they can notify the RAN to page the UE, and receive the paging result returned by the RAN.

In some embodiments, if the first service is an AMF called service, the first operation is: enabling a UE reachable operation.

The device further includes:

When the first service is the AMF called service, and when the first operation is to enable a UE reachable operation, the receiving module 120 may be configured to: after the network function NF calls the first service first operation, The AMF response response message notifies the NF of the paging result of the UE.

In some embodiments, the receiving module 120 may be configured to, after the NF invokes the first service first operation, the AMF notifies the NF office through the response message when the UE fails to page. The UE is unreachable.

For example, the receiving module 120 is specifically configured for the AMF to notify the NF of a paging result of the UE by enabling a UE reachability response message.

In some embodiments, if the first service is an AMF communication service, the first operation is an N1N2 interface message transfer operation. The device further includes:

The sending module is configured to send a N1 and N2 interface message transmission response to the NF if the UE is successfully paged.

In some embodiments, the sending module is configured to send a N1 N2 interface message transmission response to the NF if paging the UE fails, wherein the N1 N2 interface message transmission response carries the UE paging Failure indication.

In some embodiments, the NF is one of the following: SMSF, PCF, SMF, LMF.

As shown in FIG. 6, this embodiment provides an information processing apparatus in a UE RRC layer inactive state, including:

The receiving module 210 is configured to receive a paging UE notification sent by the AMF by the RAN;

The paging module 220 is configured to page the UE in a radio resource control layer inactive state according to the notification.

The information processing device in the UE RRC layer inactive state may be a device applied in the RAN. Both the receiving module 210 and the paging module 220 can be program modules. After these program module processors are executed, they can receive the notification sent by the AMF and page the UE through the paging module 220.

In some embodiments, the receiving module 210 is configured to receive a notification of paging the UE sent by the AMF through an N2 interface message.

In some embodiments, the apparatus further includes: a sending module configured to send a paging result of the UE to the AMF.

The following provides two specific examples in combination with any of the above implementations:

Example 1:

As shown in FIG. 7, a method provided by this example may include the following steps:

Step 1: The terminal (that is, corresponding to the aforementioned UE) is in an RRC-Inactive state.

Step 2: The AMF obtains the RRC-Inactive state of the UE (that is, the RRC layer is inactive) through the N2 notification process. For example, the AMF obtains that the UE is in the RRC-Inactive state.

Step 3: NFs such as SMSF and LMF call the AMF's Namf_MT_EnableUEReachability request service operation to request the UE to be reachable.

Step 4: When the AMF judges that the UE is in the RRC-Inactive state, it notifies the RAN to page the UE through an N2 interface message.

Step 5: The RAN pages the UE, the UE enters the RRC-Connected state, or the UE fails to page.

Step 6: The RAN responds to the AMF and the UE enters RRC-Connected (RRC layer connected state), and notifies the UE to enter a reachable state. If the paging UE fails, an error cause value is fed back to the AMF. The error cause value indicates, on the one hand, the paging failure, and at the same time, the reason for the paging failure.

Step 7: The AMF invokes the Namf_MT_EnableUEReachability response operation to respond to the caller NF, and the UE enters the reachable state. If the RAN feedbacks that the paging of the UE fails, the AMF responds to the caller NF that the paging of the UE has failed. In this case, the subsequent steps 8-10 are not performed.

Step 8: The NF calls the AMF service Namf_Communication_N1N2MessageTransfer request, and carries the NAS PDU.

Step 9: The AMF responds to the sending result of the NAS message, for example, responds to Namf_Communication_N1N2MessageTransfer response.

Step 10: The AMF sends a NAS message to the UE through the RAN.

Example 2:

1) Consumer NF calls AMF service Namf_Communication_N1N2MessageTransfer request to send NAS message;

2) If the AMF determines that the UE is in the RRC-Inactive state, it notifies the RAN to page the UE through an N2 interface message;

3) The RAN starts paging the UE, the UE enters the RRC-Connected state or the paging of the UE fails;

4) The RAN responds to the AMF, such as notifying the UE to reach the reachable state if the paging is successful; if the paging UE fails, the paging failure is fed back to the AMF;

5) If the paging is successful, the AMF returns Namf_Communication_N1N2MessageTransfer response; if the paging fails, the AMF returns Namf_Communication_N1N2MessageTransfer response, carrying the result indication.

In short, on the AMF side:

When the NFs such as SMSF and LMF call the AMF service Namf_MT_EnableUEReachability to request that the UE is reachable, for the terminal in the RRC-Inactive state, the AMF needs to notify the RAN to page the UE through an N2 interface message;

After the AMF receives the RAN to notify the UE that it has reached the reachable state, it calls Namf_MT_EnableUEReachability response to notify the caller that the NF is reachable. If the RAN feedback fails to page the UE, the AMF responds to the caller NF that the UE has failed to page.

NF calls AMF's service Namf_Communication_N1N2MessageTransfer to send NAS messages; if AMF judges that the UE is in the RRC-Inactive state, it informs the RAN to page the UE through an N2 interface message; the RAN responds to AMF, and if the paging is successful, notifies the UE to enter the reachable state; If the call to the UE fails, the feedback paging fails. If the paging is successful, the AMF returns Namf_Communication_N1N2MessageTransfer response. If the paging fails, the AMF returns Namf_Communication_N1N2MessageTransfer response, which carries the result indication.

On the RAN side:

After the RAN receives the AMF N2 interface message request, the RAN starts paging the UE;

After the UE enters the RRC-Connected state, the RAN needs to respond to the AMF and notify the UE to enter the reachable state. If paging the UE fails, the RAN needs to report the UE paging failure.

In this example, when the UE is in the RRC-Inactive state, the AMF notifies the RAN to page the UE through an N2 interface message, so that the UE enters the RRC-Connected state to ensure the success rate of sending NAS messages.

As shown in FIG. 8, an embodiment of the present invention provides a network element, which may include:

Memory,

A processor connected to the memory and configured to execute an information processing method in a UE RRC layer inactive state provided by one or more of the foregoing technical solutions by executing computer executable code stored in the memory.

The memory can be various types of memory, such as random access memory, read-only memory, flash memory, and the like. The memory may be used for information storage, for example, storing computer executable instructions and the like. The computer-executable instructions may be various program instructions, such as target program instructions and / or source program instructions.

The processor may be various types of processors, such as a central processing unit, a microprocessor, a digital signal processor, a programmable array, a digital signal processor, an application specific integrated circuit, or an image processor.

The processor may be connected to the memory through a bus. The bus may be an integrated circuit bus or the like.

In some embodiments, the network element may further include a communication interface, and the communication interface may include a network interface, for example, a transmitting and receiving antenna. The communication interface is also connected to the processor and can be used for information transmission and reception.

In some embodiments, the network element further includes a human-machine interaction interface. For example, the human-machine interaction interface may include various input and output devices, such as a keyboard, a touch screen, and the like.

The network element may be the aforementioned AMF or RAN.

This embodiment provides a computer storage medium that stores computer-executable instructions. After the computer-executable instructions are executed, they can be applied to one or more technologies in a terminal device, a database, and a first private network. The information processing method provided by the solution is, for example, one or more of the information processing methods in the UE RRC layer inactive state shown in FIG. 1, FIG. 2, and FIG. 7.

The computer storage medium may include various recording media having a recording function, for example, various storage media such as a CD, a floppy disk, a hard disk, a magnetic tape, an optical disk, a U disk, or a mobile hard disk. The optional computer storage medium may be a non-transitory storage medium, and the computer storage medium may be read by a processor, so that the computer-executable instructions stored on the computer storage mechanism can be implemented after being obtained and executed by the processor. Information processing method of the UE RRC layer in an inactive state provided by any one of the foregoing technical solutions.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. In actual implementation, there may be another division manner, such as multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed components are coupled, or directly coupled, or communicated with each other through some interfaces. The indirect coupling or communications of the device or unit may be electrical, mechanical, or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, which may be located in one place or distributed across multiple network units; Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.

Those of ordinary skill in the art may understand that all or part of the steps of implementing the foregoing method embodiments may be completed by a program instructing related hardware. The foregoing program may be stored in a computer-readable storage medium. When the program is executed, the program is executed. Including the steps of the above method embodiment; and the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, etc. A medium on which program code can be stored.

The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention. It should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

An information processing method in a user equipment UE radio resource control layer inactive state includes:

When the network function NF calls the first service first operation of the access management function AMF, if the UE is in an inactive state of the radio resource control layer, the AMF notifies the radio access network RAN to page the UE.
The method according to claim 1, wherein:

The AMF notifying the radio access network RAN to page the UE includes:

The AMF notifies the RAN to page the UE through an N2 interface message.
The method of claim 1, further comprising:

Receiving a paging result returned by the RAN.
The method according to any one of claims 1 to 3, wherein:

If the first service is an AMF called service, the first operation is: enabling a UE reachable operation.
The method according to claim 4, wherein the method further comprises:

After the network function NF invokes the first service first operation, the AMF response response message notifies the NF of the paging result of the UE.
The method according to claim 5, wherein after the network function NF calls the first service first operation, the AMF response response message notifies the NF of the paging result of the UE, comprising:

After the NF invokes the first service first operation, the AMF notifies the NF that the UE is unreachable through the response message when the UE fails to page.
The method according to any one of claims 1 to 3, wherein:

If the first service is an AMF communication service, the first operation is an N1N2 interface message transfer operation.
The method according to claim 7, wherein the method further comprises:

If the paging of the UE is successful, after the network function NF invokes the first service first operation, the AMF responds with a response message to the NFN2 interface message.
The method according to claim 7, wherein the method further comprises:

If the paging of the UE fails, after the network function NF calls the first service first operation, the AMF responds to the NFN2 interface message with a response message, and the N2 interface message carries an indication of the UE's paging failure.
The method according to claim 1, wherein:

The NF is one of the following:

Short message service function SMSF,

Policy control function PCF,

Session management function SMF,

Location management function LMF.
An information processing method in a user equipment UE radio resource control layer inactive state includes:

The radio access network RAN receives a notification of paging the UE sent by the access management function AMF;

Paging the UE in a radio resource control layer inactive state according to the notification.
The method according to claim 11, wherein the radio access network RAN receiving the notification of the paging UE sent by the access management function AMF comprises:

The RAN receives a notification for paging the UE sent by the AMF through an N2 interface message.
The method according to claim 11 or 12, wherein the method further comprises:

Sending the paging result of the UE to the AMF.
An information processing apparatus in a user equipment UE radio resource control layer inactive state includes:

A notification module configured to, when the network function NF calls the first service first operation of the access management function AMF, if the UE is in the radio resource control layer inactive state, the AMF notifies the radio access network RAN to find Call the UE.
An information processing apparatus in a user equipment UE radio resource control layer inactive state includes:

A receiving module configured to receive, by a radio access network RAN, a notification of a paging UE sent by an access management function AMF;

A paging module configured to page the UE in a radio resource control layer inactive state according to the notification.
A network element includes:

Memory,

The processor is connected to the memory and configured to implement the method according to any one of claims 1 to 10 or 11 to 13 by executing computer-executable code stored in the memory.
A computer storage medium stores computer executable code; after the computer executable code is executed, the method according to any one of claims 1 to 10 or 11 to 13 can be implemented.