WO2019037540A1

WO2019037540A1 - Deactivated ue exception handling method, devices, and computer-readable storage medium

Info

Publication number: WO2019037540A1
Application number: PCT/CN2018/093372
Authority: WO
Inventors: 马慧; 刘亮
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: 2017-08-24
Filing date: 2018-06-28
Publication date: 2019-02-28
Also published as: CN109756971A

Abstract

This disclosure provides a deactivated UE exception handling method, devices, and a computer-readable storage medium. The method comprises: receiving a paging message sent by a core network, and determining, on the basis of the paging message, that an exception occurs; initiating a connection recovery process; and receiving, after the connection is recovered, UE data sent by the network side.

Description

Method, device and computer readable storage medium for deactivating UE abnormality

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. No. 201710737793.9, filed on Jan.

Technical field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a method for processing a user equipment (UE) exception of a deactivated state, a user equipment, a base station device, and a computer readable storage medium.

Background technique

In the fifth generation mobile communication 5G system, when the user equipment UE is in the deactivated state, there is no radio resource control (RRC) connection between the UE and the base station, but the base station still retains the UE context, and the UE is on the radio access network (RAN) side. The behavior is similar to the idle state, while the core network (CN) is still connected. At this time, if downlink data arrives, the CN does not trigger the paging process, but sends data to the base station, and the base station pages the UE, and the UE initiates a connection establishment procedure.

However, if the abnormal situation occurs, the UE is unreachable, for example, the UE signal is occluded for a short time, and the base station fails to page the UE, the base station may notify the CN to page the UE by the CN. However, the UE is in the deactivated state (the UE considers that it should not receive the paging message of the CN), and the status of the UE recorded by the base station and the CN may be inconsistent, which may cause the UE to behave abnormally and cannot receive data normally.

Summary of the invention

The present disclosure provides a processing method for a deactivated state UE anomaly, a base station device, a user equipment, and a computer readable storage medium.

In a first aspect, some embodiments of the present disclosure provide a method of processing a deactivated state UE anomaly. The method includes: receiving a paging message sent by the core network, determining an abnormality occurrence based on the paging message; initiating a connection recovery process; and receiving data of the UE sent by the network side after the connection is restored.

Optionally, after the determining that the abnormality occurs based on the paging message, the method further includes: setting a state of the UE to an idle state, or maintaining a state of the UE as a deactivated state.

When the state of the UE is set to the idle state, the initiating the connection recovery process, and after receiving the connection recovery, receiving the data of the UE sent by the network side, includes: initiating a connection establishment procedure; after the connection is established, receiving the base station Or the data of the UE sent by the core network.

When the state of the UE is the deactivated state, the initiating the connection recovery process, and after the connection is restored, receiving the data of the UE sent by the network side, including: initiating a connection activation process; and after the connection is activated, receiving The data of the UE transmitted by the base station.

The initiating the connection recovery process includes: sending a connection recovery message carrying the UE deactivation state identifier.

In a second aspect, some embodiments of the present disclosure also provide a user equipment, the user equipment comprising a processor and a memory for storing a computer program executable on the processor, wherein the processor is running The computer program performs the steps of the method of the first aspect above.

In a third aspect, some embodiments of the present disclosure also provide a non-transitory computer readable storage medium comprising a computer program stored thereon, the computer program being executed by a processor The processor implements the steps of the method of the first aspect above.

In a fourth aspect, some embodiments of the present disclosure further provide a processing method for a UE in a deactivated state, the method comprising: determining a paging failure of a UE on a RAN side; and notifying a UE of a core network RAN side of a paging failure.

The paging failure of the UE on the RAN side of the core network is notified, including: sending a UE context release message, where the UE context release message carries a UE paging failure identifier of the RAN side.

Optionally, after the paging of the UE on the RAN side of the radio access network of the core network is notified, the method further includes: sending data of the UE to the UE after the UE connection is restored.

Optionally, the method further includes: uploading data of the UE to a core network, where the core network sends data of the UE to the UE.

Optionally, the method further includes: deleting a context of the UE saved by the base station, and deleting the connection between the UE and the core network.

In a fifth aspect, some embodiments of the present disclosure also provide a base station apparatus including a processor and a memory for storing a computer program executable on the processor, wherein the processor is running The computer program performs the steps of the method of the above fourth aspect.

In a sixth aspect, some embodiments of the present disclosure further provide a non-transitory computer readable storage medium, the non-transitory computer readable storage medium being included on the non-transitory computer-readable storage medium A stored computer program that, when executed by a processor, implements the steps of the method of the above fourth aspect.

According to the processing method of the deactivated state UE abnormality provided by the present disclosure, the base station device, the user equipment, and the computer readable storage medium, the UE receives the paging message sent by the core network, determines an abnormality based on the paging message, and initiates a connection recovery process. After the connection is restored, the data of the UE sent by the network side is received. According to the present disclosure, after receiving the paging of the core network, the UE in the deactivated state performs connection recovery, thereby receiving data sent by the network side, ensuring that the UE data is not lost, and improving the user experience; at the same time, avoiding related UEs. Understanding the paging of the core network causes an abnormal situation to occur.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for processing an abnormality of a deactivated UE according to some embodiments of the present disclosure;

2 is another schematic flowchart of a method for processing an abnormality of a deactivated UE according to some embodiments of the present disclosure;

FIG. 3 is a schematic structural diagram of a UE according to some embodiments of the present disclosure;

FIG. 4 is a schematic structural diagram of a base station device according to some embodiments of the present disclosure;

5 is a schematic flow chart of scenario 1 of the method of the present disclosure;

6 is a schematic flow chart of scenario 2 of the method of the present disclosure;

7 is a schematic flow chart of scenario 3 of the method of the present disclosure.

Detailed ways

The present disclosure is described below in conjunction with the accompanying drawings and embodiments.

Some embodiments of the present disclosure provide a method for processing a deactivated UE anomaly, as shown in FIG. 1, the method including steps 101-103.

Step 101: Receive a paging message sent by the core network, and determine that an abnormality occurs based on the paging message.

Step 102: Initiate a connection recovery process.

Step 103: After the connection is restored, receive data of the UE sent by the network side.

After receiving the paging of the core network CN, the user equipment UE in the deactivated state performs the connection recovery, so as to receive the data sent by the network side, ensure that the UE data is not lost, and improve the user experience; The related abnormality occurs due to the UE not understanding the paging of the core network.

In some embodiments, after determining that the abnormality occurs based on the paging message, the method further includes: setting a state of the UE to an idle state, or maintaining a state of the UE as a deactivated state.

Here, the core network may set the UE state of the core network side to the idle state before sending the paging message to the UE; or the core network does not change the state setting of the UE, and is still in the connected state or the deactivated state.

In some embodiments, when the state of the UE is set to the idle state, the initiating the connection recovery process, and after the connection is restored, receiving the data of the UE sent by the network side, including: initiating a connection establishment process; and establishing a connection. After receiving the data of the UE sent by the base station or the core network.

In some embodiments, when the state of the UE is a deactivated state, the initiating connection recovery process, and after the connection is restored, receiving data of the UE sent by the network side, including: initiating a connection activation process; and connecting activation After receiving the data of the UE sent by the base station.

In some embodiments, the initiating the connection recovery process includes: sending a connection recovery message carrying the UE deactivation state identifier.

For example, when the connection establishment or connection activation message is sent in the connection establishment process or the connection activation process, the connection establishment or connection activation message carries the UE deactivation state identifier.

Some embodiments of the present disclosure also provide a processing method for a deactivated UE abnormality, as shown in FIG. 2, the method includes steps 201-202.

Step 201: Determine that the UE paging failure on the RAN side.

Step 202: Notifying the UE of the core network RAN side that the paging fails.

According to some embodiments of the present disclosure, after receiving the paging of the core network, the UE in the deactivated state performs connection recovery, thereby receiving data sent by the network side, ensuring that the UE data is not lost, and improving the user experience; at the same time, avoiding Correlation occurs due to the UE not understanding the paging of the core network.

In some embodiments, the notifying the paging failure of the UE on the RAN side of the core network includes: sending a UE context release message, where the UE context release message carries a UE paging failure identifier on the RAN side.

In some embodiments, after the UE of the RAN side of the radio access network of the core network is notified that the paging fails, the method further includes: sending data of the UE to the UE after the UE connection is restored.

In some embodiments, the method for notifying the UE of the core network radio access network RAN fails, or before or after, the method further includes: uploading data of the UE to a core network, for the core The network sends the data of the UE to the UE.

Here, after the base station uploads the data of the UE to the core network, after the connection is restored, the data of the UE is sent by the core network to the UE, and the base station does not perform data transmission of the UE.

In some embodiments, the method further includes: deleting the context of the UE saved by the base station, and deleting the connection between the UE and the core network, when the paging of the UE on the RAN side of the radio access network is notified.

Some embodiments of the present disclosure also provide a user equipment UE. As shown in FIG. 3, the UE 30 includes a transceiver 301 and a processor 302.

The transceiver 301 is configured to receive a paging message sent by the core network, and receive data of the UE sent by the network side after the connection is restored. The processor 302 is configured to determine that an abnormality occurs based on the paging message; initiate a connection recovery process.

In some embodiments, the processor 302 is further configured to set the state of the UE to an idle state or maintain the state of the UE to a deactivated state after the abnormality occurs based on the paging message.

In some embodiments, when the state of the UE is set to the idle state, the processor 302 initiates a connection recovery process, and the transceiver 301 receives the data of the UE sent by the network side after the connection is restored, including: The processor 302 initiates a connection establishment procedure, and the transceiver 301 receives data of the UE sent by the base station or the core network after the connection is established.

In some embodiments, when the state of the UE is a deactivated state, the processor 302 initiates a connection recovery process, and the transceiver 301 receives data of the UE sent by the network side after the connection is restored, including: The processor 302 initiates a connection activation procedure, and the transceiver 301 receives data of the UE sent by the base station after the connection is activated.

In some embodiments, the transceiver 301 is further configured to send a connection recovery message carrying the UE deactivation state identifier.

Some embodiments of the present disclosure also provide a base station apparatus. As shown in FIG. 4, the base station apparatus 40 includes a transceiver 401 and a processor 402.

The transceiver 401 is configured to notify the UE of the core network radio access network RAN that the paging fails. The processor 402 is configured to determine that the UE paging failure on the RAN side.

In some embodiments, the transceiver 401 notifies the UE of the core network radio access network RAN that the paging failure includes: sending a UE context release message, where the UE context release message carries the UE paging failure identifier of the RAN side.

In some embodiments, after the transceiver 401 notifies the UE of the core network radio access network RAN that the paging fails, the transceiver 401 is further configured to send the UE data to the UE after the UE connection is restored.

In some embodiments, when the transceiver 401 notifies the UE of the core network radio access network RAN that the paging fails, or before or after, the processor 402 is further configured to upload the data of the UE to the core network. And for the core network to send data of the UE to the UE.

In some embodiments, when the transceiver 401 notifies the UE of the core network radio access network RAN that the paging fails, the processor 402 is further configured to delete the context of the UE saved by the base station, and delete the UE. Connection to the core network.

Some embodiments of the present disclosure also provide a UE including a processor and a memory for storing a computer program executable on the processor, wherein the processor executes when the computer program is run Receiving a paging message sent by the core network, determining that an abnormality occurs based on the paging message, initiating a connection recovery process, and receiving data of the UE sent by the network side after the connection is restored.

After determining that the abnormality occurs based on the paging message, the processor is further executed when the computer program is executed: setting a state of the UE to an idle state, or maintaining a state of the UE as a deactivated state.

When the state of the UE is set to the idle state, the processor is further executed when the computer program is running: initiating a connection establishment procedure; and after receiving the connection, receiving data of the UE sent by the base station or the core network.

When the state of the UE is a deactivated state, the processor is further executed when the computer program is running: initiating a connection activation process; and after the connection is activated, receiving data of the UE sent by the base station.

In the initiating connection recovery process, the processor is further executed when the computer program is running: sending a connection recovery message carrying a UE deactivation state identifier.

Some embodiments of the present disclosure also provide a base station apparatus including a processor and a memory for storing a computer program executable on the processor, wherein the processor is running the computer program Execution: determining that the paging of the UE on the RAN side of the radio access network fails, and notifying the UE of the RAN side of the radio access network of the core network that the paging fails.

When the paging of the UE on the radio access network RAN side of the core network is notified, the processor is also configured to: send a UE context release message, where the UE context release message carries the UE on the RAN side Paging failure identifier.

After the UE is notified of the paging failure of the UE on the RAN side of the core network, the processor is also executed when the computer program is executed: the data of the UE is sent to the UE after the UE connection is restored.

When the paging of the UE on the RAN side of the core network is notified, the processor is still executed when the computer program is running, before, or after: uploading data of the UE to the core network, for the core The network sends the data of the UE to the UE.

When the UE is notified that the paging of the UE on the radio access network RAN side of the core network fails, the processor is further executed when the computer program is executed: deleting the context of the UE saved by the base station, and deleting the UE and the core Network connection.

It should be noted that, when the UE and the base station device provided by the foregoing embodiments perform exception processing, only the division of each of the foregoing program modules is illustrated. In actual applications, the foregoing processing may be performed by different program modules as needed. The internal structure of the device is divided into different program modules to perform all or part of the processing described above. In addition, the UE and the base station device provided by the foregoing embodiments are in the same concept as the corresponding method embodiment, and the specific implementation process is described in the method embodiment, and details are not described herein again.

In an exemplary embodiment, some embodiments of the present disclosure further provide a computer readable storage medium, which may be a volatile computer readable storage medium or a nonvolatile computer. Reading a storage medium such as a FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or a device including one or any combination of the above, such as a mobile phone , computers, tablet devices, personal digital assistants, etc.

Some embodiments of the present disclosure provide a computer readable storage medium, which may be a volatile computer readable storage medium or a non-transitory computer readable storage medium, wherein The computer readable storage medium stores a computer program, when the computer program is executed by the processor, the processor executes: receiving a paging message sent by the core network, determining that an abnormality occurs based on the paging message; and initiating a connection recovery process; And after the connection is restored, receiving data of the UE sent by the network side.

The processor further performs: setting the state of the UE to an idle state or maintaining a state of the UE to a deactivated state when the computer program is executed by the processor after determining that the abnormality occurs based on the paging message. .

When the state of the UE is set to the idle state, when the computer program is executed by the processor, the processor further performs: initiates a connection establishment process; and after the connection is established, receives data of the UE sent by the base station or the core network.

When the state of the UE is a deactivated state, when the computer program is executed by the processor, the processor further performs: initiates a connection activation process; and after the connection is activated, receives data of the UE sent by the base station.

In the initiating connection recovery process, when the computer program is run by the processor, the processor further performs: sending a connection recovery message carrying the UE deactivation state identifier.

Some embodiments of the present disclosure provide a computer readable storage medium, which may be a volatile computer readable storage medium or a non-transitory computer readable storage medium, wherein The computer readable storage medium stores a computer program, and when the computer program is executed by the processor, the processor performs: determining and notifying the UE of the core network radio access network RAN side of paging failure.

The UE further performs: sending a UE context release message, where the UE context release message carries the RAN, when the UE is notified that the paging of the UE on the radio access network RAN side of the core network fails. The side of the UE paging failure flag.

After the UE is notified of the paging failure of the UE on the RAN side of the core network, when the computer program is executed by the processor, the processor further performs: transmitting data of the UE to the UE after the UE connection is restored.

When the paging of the UE on the RAN side of the core network is notified, when the computer program is run by the processor, before, or after, the processor further performs: uploading data of the UE to the core network, where The core network sends data of the UE to the UE.

The processor further performs: deleting the context of the UE saved by the base station, and deleting the foregoing, when the computer program is executed by the processor when the paging of the UE on the radio access network RAN side of the core network is notified to be failed. The connection between the UE and the core network.

The method of the present disclosure will be described below in connection with a scenario.

scene one

In this scenario, the CN and the UE are configured to be in the idle state, and the gNB (the base station of the 5G) acquires the UE data from the anchor gNB. The process is as shown in FIG. 5, and includes steps 1 to 6.

Step 1: The anchor gNB can not find the UE in the paging area of the RAN side, and the anchor gNB deletes the reserved context of the UE, and deletes the CN connection of the UE, and notifies the CN that the UE is unreachable, for example, the anchor gNB sends the UE. Context release message to CN.

Step 2: After receiving the notification, the CN sets the UE state to the idle state, and sends a paging message in the tracking area to find the UE.

Step 3: The UE deactivates the paging message sent by the gNB. If the UE receives the paging message sent by the CN, the UE learns that the abnormality occurs, and the UE sets its own state to the idle state. .

Step 4: The UE initiates a connection establishment process, and the connection establishment message sent by the UE to the gNB or the anchor gNB carries the UE deactivation state identifier.

Step 5: The UE establishes a connection with the wireless side and the core network side.

Step 6: After receiving the connection establishment message, the gNB or the anchor gNB judges, if it is not the anchor gNB in the UE deactivated state (that is, the gNB that establishes the CN connection of the UE with the CN), according to the UE deactivation state identifier to the anchor gNB The UE data is obtained and sent to the UE; if it is the anchor gNB in the UE deactivated state, the UE data is saved and the saved data is sent to the UE.

Scene two

In this scenario, the CN and the UE configure the UE state to be in an idle state, and the anchor gNB uploads the UE data to the CN. The process is as shown in FIG. 6, and includes steps 1 to 5.

Step 1: The anchor gNB can not find the UE in the paging area of the RAN side, and the anchor gNB deletes the reserved UE context, deletes the CN connection of the UE, and notifies the CN that the UE is unreachable, for example, the anchor gNB sends the UE context. The message is released to the CN; at the same time, the anchor gNB uploads the saved UE data to the CN.

Step 3: The UE deactivates the paging message sent by the gNB. If the UE receives the paging message sent by the CN, the UE learns that the abnormality occurs, and the UE sets its own state to the idle state.

Step 4: The UE initiates a connection establishment process.

Step 5: After the connection is established, the CN sends the UE data to the UE.

Scene three

In this scenario, the CN and the UE do not change the current UE state, and the base station sends data to the UE. The process is as shown in FIG. 7 and includes steps 1 to 5.

Step 1: The anchor gNB can not find the UE in the paging area of the RAN side, and informs the CN that the UE is unreachable. For example, the anchor gNB sends a UE unreachable indication message to the CN.

Step 2: After receiving the notification, the CN does not delete the CN connection of the UE, and does not change the state of the UE, and is still in a connected state or a deactivated state (the state of the UE on the RAN side is different from the state on the core network side), and CN A paging message is sent in the tracking area to find the UE, which carries the abnormality cause, for example, the deactivated state RAN side is unreachable.

Step 3: After the deactivated UE receives the paging message sent by the CN, it does not change the UE state configuration, that is, it is still deactivated.

Step 4: The UE initiates a connection activation process, where the UE carries the activation state identifier.

Step 5: After receiving the connection establishment message, the gNB or the anchor gNB judges, if it is not the anchor gNB in the UE deactivated state, acquires the UE context and the UE data from the anchor gNB according to the UE deactivation state identifier, and then performs the core network path. Switching and transmitting the UE data to the UE; if it is the anchor gNB (which holds the UE data) when the UE is deactivated, the radio side connection with the UE is activated, and the saved data is sent to the UE.

The above is only an alternative embodiment of the present disclosure, and is not intended to limit the scope of the disclosure.

Claims

A method for processing an abnormality of a user equipment UE in a deactivated state includes:

Receiving a paging message sent by the core network, and determining that an abnormality occurs based on the paging message;

Initiating a connection recovery process;

After the connection is restored, the data of the UE sent by the network side is received.
The method of claim 1, wherein after the determining that the abnormality occurs based on the paging message, the method further comprises:

The state of the UE is set to an idle state, or the state of the UE is maintained to a deactivated state.
The method of claim 2, wherein when the state of the UE is set to the idle state, the initiating the connection recovery process, and after the connection is restored, receiving the data of the UE sent by the network side, including:

Initiating a connection establishment process;

After the connection is established, the data of the UE sent by the base station or the core network is received.
The method of claim 2, wherein when the state of the UE is a deactivated state, the initiating a connection recovery process, and after the connection is restored, receiving data of the UE sent by the network side, including:

Initiating a connection activation process;

After the connection is activated, the data of the UE sent by the base station is received.
The method of claim 1, wherein the initiating a connection recovery process comprises:

A connection recovery message carrying the UE deactivation state identifier is sent.
A method for processing an abnormality of a user equipment UE in a deactivated state includes:

Determining that the paging of the UE on the RAN side of the radio access network fails;

The UE paging on the RAN side of the core network is notified to fail.
The method according to claim 6, wherein the notifying the UE of the core network RAN side of the paging failure comprises:

And sending a UE context release message, where the UE context release message carries a UE paging failure identifier of the RAN side.
The method of claim 6, wherein the method further comprises: after notifying the UE of the RAN side of the core network radio access network that the paging fails.

The UE's data is transmitted to the UE after the UE connection is restored.
The method of claim 6 further comprising:

Uploading data of the UE to the core network, where the core network sends data of the UE to the UE.
The method of claim 6 further comprising:

The context of the UE saved by the base station is deleted, and the connection between the UE and the core network is deleted.
A user equipment comprising:

Processor, and

a memory for storing a computer program capable of running on the processor,

Wherein the processor executes the steps of the method of any of claims 1-5 while the computer program is running.
A base station device includes:

Processor, and

a memory for storing a computer program capable of running on the processor,

Wherein the processor executes the steps of the method of any one of claims 6-10 when the computer program is run.
A non-transitory computer readable storage medium comprising:

A computer program stored thereon, wherein the computer program is executed by a processor, the processor implementing the steps of the method of any of claims 1-5, or implementing any one of claims 6-10 The steps of the method.