WO2022104740A1

WO2022104740A1 - Method and apparatus for updating non-public network subscription information

Info

Publication number: WO2022104740A1
Application number: PCT/CN2020/130603
Authority: WO
Inventors: 谭佳瑶; 强鹂; 吴烨丹; 郑黎丽; 常俊仁
Original assignee: 华为技术有限公司
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2022-05-27
Also published as: CN116349345A

Abstract

Disclosed are a method and apparatus for updating non-public network subscription information. The method comprises: after an access network device receives an RRC recovery request message from a terminal device, the access network device can send an RRC rejection message or an RRC release message to the terminal device, wherein the RRC rejection message or the RRC release message comprises new subscription information; or, the access network device can send an RRC recovery message to the terminal device, wherein the RRC recovery message carries indication information for restricting the terminal device from transmitting non-access stratum (NAS) signaling and/or service data. Subscription information of a terminal device is updated by means of the method, such that the terminal device can update the subscription information in a timely manner by means of an access network device, even when the terminal device cannot pass the verification of the access network device.

Description

A method and device for updating non-public network subscription information

technical field

The present application relates to the field of communications, and in particular, to a method and device for updating subscription information on a non-public network.

Background technique

A public network integrated non-public network (PNI-NPN) is a non-public network (NPN) implemented by relying on a public land mobile network (PLMN). A non-public network refers to a network open to specific users, which can provide users with NPN services through NPN cells only in specific areas (such as industrial parks, schools, etc.) terminal equipment) to access the NPN cell. Usually, the terminal equipment supporting the NPN service is configured with subscription information, that is, user access information signed by the terminal equipment with an operator or other companies that build a non-public network. After signing the contract, the terminal device can access the corresponding network according to the network identifier allowed to be accessed in the contract information, and use the network resources. For example, for a terminal device that supports the PNI-NPN service, the subscription information includes a list of closed access groups (CAGs) that are allowed to access and an indication that only access via the CAG is allowed.

When the subscription information of the terminal device (for example, the above-mentioned CAG list that allows access) is changed (or called updated), the access management function (access and mobility management function, AMF) will initiate the user equipment (user equipment, UE) Configuration update (UE configuration update, UCU) process to notify terminal equipment of the updated subscription information. For a terminal device in an inactive state, when the AMF triggers the UCU, it will send a downlink non-access stratum transmission message to the source base station of the terminal device, and the downlink non-access stratum transmission message carries the non-access stratum-protocol Data unit (non-access stratum-packet data unit, NAS-PDU) and mobility restriction list (mobility restriction list, MRL), among which, NAS-PDU is sent to terminal equipment by AMF, and the source base station receives NAS-PDU after receiving NAS-PDU. Then it is transparently transmitted to the terminal device, and the MRL is sent to the source base station by the AMF. Both the NAS-PDU and the MRL carry the updated subscription information of the terminal device. The source base station is the last serving base station before the terminal equipment enters the inactive state from the connected state. For the NPN terminal equipment in the inactive state, it needs to re-access the NPN cell to receive the updated subscription information, that is, the terminal equipment needs to perform a radio resource control (radio resource control, RRC) recovery process. When the NPN terminal device performs the RRC recovery process, if the source base station is connected to the source base station, since the source base station has updated the subscription information of the corresponding terminal device according to the MRL, there may exist the updated subscription information of the terminal device and the NPN supported by the source base station. If the information does not match, the source base station will refuse the terminal device to access. In this way, the terminal device cannot receive the updated subscription information by accessing the cell of the source base station, resulting in that the terminal device's subscription information cannot be updated in time.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a non-public network subscription information update method and device, so as to solve the problem that the terminal equipment cannot update the subscription information in time because the terminal equipment cannot pass the verification of the access network equipment.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

A first aspect of the embodiments of the present application provides a method for updating non-public network subscription information, the method may include: a first access network device receiving an RRC recovery request message sent by a terminal device; A first message is sent, where the first message includes a first CAG information list, where the first CAG information list is an updated CAG information list of the terminal device, and the first message is an RRC reject message or an RRC release message.

Based on the method of the first aspect, after the first access network device receives the RRC recovery request message sent by the terminal device, the first access network device may send a first message to the terminal device to reject or release the connection between the terminal device and the first access network equipment, and the first message carries the updated CAG information list of the terminal equipment, so that the terminal equipment can update the CAG information list according to the first message. The terminal device that cannot pass the verification of the first access network device can also update the CAG information list in time without entering the connection state through the first access network device.

In a possible design, the first message further includes a first cause value, where the first cause value is used to instruct the terminal device to update the CAG information list.

Based on this possible design, it is convenient for the terminal device to update the CAG information list according to the determination of the received first cause value, and further update the CAG information list, thereby simplifying the system design.

In a possible design, the method further includes: the first access network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device. The message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated; the RRC recovery request message includes the second cause value.

Based on this possible design, the first access network device can determine, according to the indication of the second cause value included in the received RRC recovery request message, that the purpose of sending the RRC recovery request message by the terminal device is to update the CAG information list, and further The first message is sent to the terminal device, so that the terminal device can update the CAG information list in time.

In a possible design, the method further includes: the first access network device receives a third message sent by the core network device, where the third message includes the first CAG information list; the first access network device sets the first identifier, The first identifier is used to indicate that the CAG information list of the terminal device is not updated.

Based on this possible design, the first access network device. So that when the first access network device receives the RRC recovery request message, it can determine that the CAG information list of the terminal device has not been updated according to the set first identifier, so as to send the first message to the terminal device, so that the terminal device can update the CAG in time. list of information.

In a possible design, the method further includes: after the first access network device sends the first message to the terminal device, the first access network device deletes the first identifier.

Based on this possible design, deleting the first identifier after sending the first message can prevent the first access network device from sending the first message to the terminal device again when the subsequent terminal device sends an RRC recovery request to the first access network device. , causing the terminal device to repeatedly update the CAG information list. The first access network device may delete the first identifier after determining that the terminal device has received the first message.

In a possible design, the method further includes: the first access network device sends a fourth message to the second access network device, where the fourth message is used to request the context of the terminal device; the first access network device receives the first access network device Second, a fifth message sent by the access network device, where the fifth message includes a first CAG information list and a first indication, and the first indication is used to instruct the terminal device to update the CAG information list.

Based on this possible design, when the first access network device that receives the RRC recovery request message does not have the context of the terminal device (eg, the updated CAG information of the terminal device) (for example, the first access network device may be The terminal device last serves other access network devices near the access network device), the first access network device may request the context from the second access network device. After receiving the fourth message requesting the context, the second access network device may send the updated CAG information list (or the first CAG information list) of the terminal device to the first access network device through the fifth message, thereby It is convenient for the first access network device to obtain the updated CAG information list of the terminal device and send the updated CAG information list of the terminal device to the terminal device by sending the first message, so that the terminal device updates the CAG information list.

In a possible design, the method further includes: the first access network device receives a sixth message sent by the second access network device, where the sixth message includes a second cause value, and the second cause value is used to indicate the terminal device The CAG information list is updated; the first access network device sends a second message to the terminal device, the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message includes the second reason value; The RRC Recovery Request message includes a second cause value.

In this way, it is convenient for the first access network device to determine that the terminal device has not updated the CAG information list according to the second cause value in the received RRC recovery request message, and then send the first message to the terminal device so that the terminal device can update the CAG information list.

In a possible design, the method further includes: configuring, in the system message, by the first access network device, at least one of a preamble resource, a time domain resource, and a frequency domain resource dedicated to updating the CAG information list by the terminal device.

In this way, it may be that the terminal device receives the configured resource dedicated to updating the CAG information list through the system message, which simplifies the system design.

In a second aspect, a communication apparatus is provided, and the communication apparatus may be a first access network device or a chip or a system-on-chip in the first access network device. The communication apparatus may implement the functions performed by the first access network device in the first aspect or possible designs of the first aspect, and the functions may be implemented by hardware or by executing corresponding software in hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include: a receiving unit, a processing unit, a sending unit, and the like.

Wherein, the receiving unit can be used to receive the RRC recovery request message sent by the terminal device;

The sending unit can be configured to send a first message to the terminal device, where the first message includes a first CAG information list, where the first CAG information list is the updated CAG information list of the terminal device, and the first message is an RRC rejection message or an RRC release message.

In a possible design, the sending unit is further configured to send a second message to the terminal device, the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message includes the second reason value, the second cause value is used to indicate the update of the CAG information list of the terminal device; the RRC recovery request message includes the second cause value.

In a possible design, the receiving unit is further configured to receive a third message sent by the core network device, where the third message includes the first CAG information list; the processing unit is configured to set the first identifier, and the first identifier is used to indicate The CAG information list of the terminal device is not updated.

In a possible design, after sending the first message to the terminal device, the processing unit is further configured to delete the first identifier.

In a possible design, the sending unit is further configured to send a fourth message to the second access network device, where the fourth message is used to request the context of the terminal device; the receiving unit is further configured to receive the second access network device The sent fifth message includes a first CAG information list and a first indication, where the first indication is used to instruct the terminal device to update the CAG information list.

In a possible design, the receiving unit is further configured to receive a sixth message sent by the second access network device, where the sixth message includes a second cause value, and the second cause value is used to instruct the terminal device to update the CAG information list The sending unit is further configured to send a second message to the terminal device, the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message includes the second reason value; the RRC recovery request message includes Second cause value.

In a possible design, the processing unit is further configured to configure, in the system message, at least one of a preamble resource, a time domain resource, and a frequency domain resource dedicated to updating the CAG information list by the terminal device.

In a third aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer-executed instructions, and when the communication device is running, the processor executes the computer-executed instructions stored in the memory, so that the The communication apparatus executes the method for updating non-public network subscription information as described in the first aspect or any possible design of the first aspect.

In a fourth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, so that when the computer-readable storage medium runs on a computer, the computer can execute the first aspect or any of the above-mentioned aspects. Design the non-public network subscription information update method.

In a fifth aspect, there is provided a computer program product comprising instructions that, when run on a computer, enable the computer to perform the non-public network subscription described in the first aspect or any possible design of the first aspect above Information update method.

In a sixth aspect, a communication device is provided, and the communication device may be a chip system, and the chip system may include a processor and a transceiver for supporting the communication device to implement the first aspect or any of the first aspects. The functions involved in the design. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Wherein, for the technical effect brought about by any one of the design manners in the second aspect to the sixth aspect, reference may be made to the technical effect brought about by the first aspect or any possible design of the first aspect, which will not be repeated.

In a seventh aspect, another method for updating non-public network subscription information is provided, the method may include: the second access network device receives a fourth message sent by the first access network device, where the fourth message is used to request the context of the terminal device ; The second access network device sends a fifth message to the first access network device, the fifth message includes the first CAG information list and the first indication, the first CAG information list is the updated CAG information list of the terminal device, the first Indicates an update of the CAG information list used to indicate the terminal device.

Based on the method of the seventh aspect, when the first access network device that receives the RRC recovery request message does not have the context of the terminal device (eg, the updated CAG information of the terminal device) (for example, the first access network device may other access network devices near the last serving access network device of the terminal device), the first access network device may request the context from the second access network device. The second access network device may send the updated CAG information list (or the first CAG information list) of the terminal device to the first access network device through the fifth message after receiving the fourth message requesting the context, Therefore, it is convenient for the first access network device to obtain the updated CAG information list of the terminal device and determine that the terminal device needs to update the CAG information list according to the first instruction, and then send the updated CAG information of the terminal device by sending the first message. The list is sent to the terminal device to cause the terminal device to update the CAG information list.

In a possible design, the method further includes: the second access network device sends a sixth message to the first access network device, where the sixth message is used to instruct the first access network device to send the second message, and the sixth message is used to instruct the first access network device to send the second message. The message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated.

Based on this possible design, the first access network device can determine that the terminal device needs to update the CAG information according to the second cause value, thereby simplifying the system design.

In an eighth aspect, a communication apparatus is provided, where the communication apparatus may be a second access network device or a chip or a system-on-chip in the second access network device. The communication apparatus may implement the functions performed by the second access network device in the seventh aspect or possible designs of the seventh aspect, and the functions may be implemented by hardware or by executing corresponding software in hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include: a receiving unit, a sending unit, and the like.

a receiving unit, which may be configured to receive a fourth message sent by the first access network device, where the fourth message is used to request the context of the terminal device;

The sending unit may be configured to send a fifth message to the first access network device, where the fifth message includes a first CAG information list and a first indication, and the first indication is used to instruct the terminal device to update the CAG information list.

In a possible design, the sending unit is further configured to send a sixth message to the first access network device, where the sixth message is used to instruct the first access network device to send a second message, and the sixth message includes the second reason value, the second cause value is used to indicate the update of the CAG information list of the terminal device.

In a ninth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used for storing computer-executed instructions, and when the communication device is running, the processor executes the computer-executed instructions stored in the memory, so that the The communication apparatus executes the method for updating non-public network subscription information as described in the seventh aspect or any possible design of the seventh aspect.

In a tenth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, so that when the computer-readable storage medium runs on a computer, the computer can execute the seventh aspect or any one of the seventh aspects. Possible designs of the non-public network subscription information update method described.

In an eleventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, enables the computer to execute the non-public network described in the seventh aspect or any possible design of the seventh aspect above. How to update contract information.

A twelfth aspect provides a communication device, where the communication device may be a chip system, and the chip system may include a processor and a transceiver for supporting the communication device to implement the seventh aspect or any possibility of the seventh aspect functions involved in the design. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Wherein, for the technical effect brought by any one of the design manners of the eighth aspect to the twelfth aspect, reference may be made to the technical effect brought by the seventh aspect or any possible design of the seventh aspect, and will not be repeated here.

A thirteenth aspect further provides a non-public network subscription information update method, the method may include: the terminal device sends an RRC recovery request message to the first access network device; the terminal device receives the first access network device from the first access network device. A message, the first message is an RRC reject message or an RRC release message; the first message includes a first CAG information list, where the first CAG information list is the updated CAG information list of the terminal device.

Based on the method of the thirteenth aspect, when the terminal device sends an RRC recovery request message to the first access network device, the first access network device may reject or release the access of the terminal device through the first message, and the first message carries the updated CAG information list of the terminal device. After receiving the first message, the terminal device can update its CAG information list. Therefore, the terminal device can update the CAG information without entering the connection state, so that the terminal device can update the CAG information in time even when the terminal device fails to pass the verification of the first access network device.

Based on this possible design, the terminal device may determine that the CAG information list needs to be updated according to the first cause value, and then update the CAG information list, thereby simplifying the system design.

In a possible design, the method further includes: the terminal device receives a second message sent by the first access network device, where the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device. The second message includes the second cause value, and the second cause value is used to indicate the update of the CAG information list of the terminal device; the RRC recovery request message includes the second cause value.

A fourteenth aspect provides a communication apparatus, where the communication apparatus may be a terminal device or a chip or a system-on-chip in the terminal device. The communication apparatus can implement the functions performed by the terminal device in the thirteenth aspect or the possible designs of the thirteenth aspect, and the functions can be implemented by hardware or by executing corresponding software in hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include: a receiving unit, a sending unit, and the like.

a sending unit, configured to send an RRC recovery request message to the first access network device;

a receiving unit, configured to receive a first message from a first access network device, where the first message is an RRC rejection message or an RRC release message; the first message includes a first CAG information list, where the first CAG information list is an update CAG information list of rear terminal equipment.

In a possible design, the receiving unit is further configured to receive a second message sent by the first access network device, where the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device. The message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated; the RRC recovery request message includes the second cause value.

A fifteenth aspect provides a communication device, comprising: a processor and a memory; the memory is used to store computer-executed instructions, and when the communication device is running, the processor executes the computer-executed instructions stored in the memory to make The communication apparatus executes the non-public network subscription information update method according to the thirteenth aspect or any possible design of the thirteenth aspect.

A sixteenth aspect provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when the computer-readable storage medium runs on a computer, the computer can execute the above-mentioned thirteenth aspect or the above-mentioned thirteenth aspect. The non-public network subscription information update method described in any possible design.

A seventeenth aspect provides a computer program product comprising instructions, which, when run on a computer, enables the computer to execute the non-programming method described in the thirteenth aspect or any possible design of the thirteenth aspect. Public network subscription information update method.

In an eighteenth aspect, a communication apparatus is provided, and the communication apparatus may be a chip system, and the chip system may include a processor and a transceiver for supporting the communication apparatus to implement any one of the thirteenth aspect or the thirteenth aspect. functions involved in a possible design. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Wherein, the technical effect brought by any one of the design methods in the fourteenth aspect to the eighteenth aspect can refer to the technical effect brought by the above-mentioned thirteenth aspect or any possible design of the thirteenth aspect. Repeat.

A nineteenth aspect further provides a method for updating non-public network subscription information, the method may include: the first access network device receives a radio resource control RRC recovery request message sent by the terminal device; the first access network device sends a message to the terminal device. Send an RRC recovery message, where the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting NAS signaling and/or service data.

Based on the method of the nineteenth aspect, after the first access network device receives the RRC recovery request message, it can use the second instruction to instruct the terminal device to communicate with the first access network device under the condition that transmission of NAS signaling and/or service data is restricted. The access network device is connected, so that the terminal device can obtain the NAS-PDU message containing the updated CAG information list sent by the core network device from the first access network device, thereby updating the CAG information list. In this way, even if the terminal device cannot pass the authentication of the first access network device, it can establish a temporary connection with the first access network device with limited transmission to receive the NAS-PDU to update the CAG information list.

In a possible design, the method further includes, after the first access network device receives the RRC recovery complete message from the terminal device, sending a NAS-PDU to the terminal device, where the NAS-PDU is used by the terminal device to update the terminal device List of CAG information.

In a possible design, the method further includes: the first access network device sends an RRC release message to the terminal device.

A twentieth aspect provides a communication apparatus, where the communication apparatus may be a first access network device or a chip or a system-on-chip in the first access network device. The communication apparatus can implement the functions performed by the first access network device in the nineteenth aspect or possible designs of the nineteenth aspect, and the functions can be implemented by hardware or by executing corresponding software in hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include: a receiving unit, a sending unit, and the like.

a receiving unit, which can be used to receive an RRC recovery request message sent by the terminal device;

The sending unit may be configured to send an RRC recovery message to the terminal device, where the RRC recovery message includes a second indication, and the second indication is used to restrict the terminal device from transmitting NAS signaling and/or service data.

Wherein, for the specific implementation of the communication device, reference may be made to the behavior function of the first access network device in the method for updating non-public network subscription information provided by the nineteenth aspect or any possible design of the nineteenth aspect, and the nineteenth The aspect or any possible design method of the nineteenth aspect may be correspondingly implemented by the receiving unit and the sending unit included in the communication device, which will not be repeated here.

In a twenty-first aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer-executed instructions, and when the communication device is running, the processor executes the computer-executed instructions stored in the memory to The communication device is caused to execute the method for updating non-public network subscription information as described in the nineteenth aspect or any possible design of the nineteenth aspect.

A twenty-second aspect provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when the computer-readable storage medium runs on a computer, the computer can execute the above-mentioned nineteenth aspect or the above-mentioned nineteenth aspect. Any possible design of the non-public network subscription information update method described.

A twenty-third aspect provides a computer program product containing instructions that, when run on a computer, enable the computer to execute the above-mentioned nineteenth aspect or any possible design of the above-mentioned nineteenth aspect. Non-public network subscription information update method.

A twenty-fourth aspect provides a communication device, the communication device may be a chip system, and the chip system may include a processor and a transceiver for supporting the communication device to implement the nineteenth aspect or any one of the nineteenth aspect. The functions involved in one possible design. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Wherein, for the technical effect brought by any one of the design methods in the twentieth aspect to the twenty-fourth aspect, reference may be made to the technical effect brought by the above-mentioned nineteenth aspect or any possible design of the nineteenth aspect, No longer.

A twenty-fifth aspect further provides a method for updating non-public network subscription information, the method may include: the terminal device sends an RRC recovery request message to the first access network device; the terminal device receives the RRC sent by the first access network device In the recovery message, the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting NAS signaling and/or service data.

Based on the method of the twenty-fifth aspect, after the first access network device receives the RRC recovery request message, it may use the second instruction to instruct the terminal device to contact the An access network device is connected, so that the terminal device can obtain the NAS-PDU message containing the updated CAG information list sent by the core network device from the first access network device, thereby updating the CAG information list. In this way, even if the terminal device cannot pass the authentication of the first access network device, it can establish a temporary connection with the first access network device with limited transmission to receive the NAS-PDU to update the CAG information list.

In a possible design, the method further includes: the terminal device sends an RRC recovery complete message to the first access network device; the terminal device receives a NAS-PDU from the first access network device, and the NAS-PDU is used for the terminal The device updates the CAG information list of the terminal device.

In a possible design, the method further includes: the terminal device receives an RRC release message sent by the first access network device.

A twenty-sixth aspect provides a communication apparatus, where the communication apparatus may be a first access network device or a chip or a system-on-chip in the first access network device. The communication apparatus can implement the functions performed by the first access network device in the twenty-fifth aspect or the possible designs of the twenty-fifth aspect, and the functions can be implemented by hardware or by executing corresponding software in hardware. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include: a receiving unit, a sending unit, and the like.

a sending unit, which can be configured to send an RRC recovery request message to the first access network device;

The receiving unit may be configured to receive an RRC recovery message sent by the first access network device, where the RRC recovery message includes a second indication, and the second indication is used to restrict the terminal device from transmitting NAS signaling and/or service data.

For the specific implementation of the communication device, reference may be made to the behavior function of the first access network device in the method for updating non-public network subscription information provided by the twenty-fifth aspect or any possible design of the twenty-fifth aspect. The twenty-fifth aspect or any possible design method of the twenty-fifth aspect may be correspondingly implemented by the receiving unit and the transmitting unit included in the communication device, which will not be repeated here.

A twenty-seventh aspect provides a communication device, comprising: a processor and a memory; the memory is used to store computer-executed instructions, and when the communication device operates, the processor executes the computer-executed instructions stored in the memory to The communication device is caused to execute the method for updating non-public network subscription information as described in the twenty-fifth aspect or any possible design of the twenty-fifth aspect.

A twenty-eighth aspect provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when the computer-readable storage medium runs on a computer, the computer can execute the above twenty-fifth aspect or the above-mentioned twentieth aspect Any one of the possible designs of the five aspects is the non-public network subscription information update method.

A twenty-ninth aspect provides a computer program product comprising instructions that, when run on a computer, enable the computer to perform the above-mentioned twenty-fifth aspect or any possible design of the above-mentioned twenty-fifth aspect. The non-public network subscription information update method described above.

A thirtieth aspect provides a communication device, the communication device may be a chip system, and the chip system may include a processor and a transceiver, for supporting the communication device to implement the above twenty-fifth aspect or the twenty-fifth aspect The functions involved in any possible design. In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Wherein, for the technical effect brought by any one of the design methods in the twenty-sixth aspect to the thirtieth aspect, reference may be made to the technology brought by the above twenty-fifth aspect or any possible design of the twenty-fifth aspect The effect will not be repeated.

A thirty-first aspect provides a communication system, which may include the communication device or chip system according to any one of the second to sixth aspects, and the communication device or chip system according to any one of the eighth to twelfth aspects. The communication device or chip system described above, and the communication device or chip system described in any one of the fourteenth aspect to the eighteenth aspect; or,

The communication system may include the communication device or chip system according to any one of the twentieth to twenty-fourth aspects, and the communication device or chip system according to any one of the twenty-sixth to thirtieth aspects.

Description of drawings

FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

2 is a schematic flowchart of a method for updating subscription information on a non-public network provided by an embodiment of the present application;

3 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

4 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

5 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

6 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

7 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

8 is a schematic flowchart of another method for updating non-public network subscription information provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of the composition of a communication device according to an embodiment of the present application;

FIG. 10 is a schematic diagram of the composition of another communication device provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of the composition of another communication device provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of the composition of another communication apparatus according to an embodiment of the present application.

Detailed ways

In a non-public network integrated with a public network, a user can access a non-public network cell through a terminal device that supports non-public network services. In a terminal device supporting non-public network services, subscription information is usually configured. The subscription information may be user access information signed between the terminal device and the operator or other companies that build a non-public network. For example, the subscription information may include a closed access group list (Allowed CAG list) to which the terminal device is allowed to access, an indication that only the terminal device is allowed to access through the closed access group (CAG-only indication), and the like. After the terminal device subscribes, it can access the corresponding network according to the network identifier allowed to be accessed in the configured subscription information. Taking the subscription information including the list of closed access groups that the terminal device is allowed to access as an example, the terminal device can access the closed access group identification that supports the closed access group according to the closed access group identification in the list of closed access groups that the terminal device is allowed to access. Access network device of the corresponding closed access group. The access network device may be configured with a list of closed access groups supported by the access network device, and may also acquire a list of closed access groups that the terminal device is allowed to access from the core network device or the terminal device. When the terminal device needs to access the access network device, the terminal device can send an access request to the access network device. After the access network device receives the access request, it can use the list of closed access groups it supports and allow the terminal device to access the network. Enter the closed access group list to verify the terminal device. For example, when the closed access group list it supports and the closed access group list to which the terminal device is allowed to access have the same closed access group identifier (such as the first closed access group identifier), the access network device can Device verification passed. Afterwards, the terminal device may connect to the access network device through the first closed access group corresponding to the first closed access group identifier. Similarly, when the closed access group list supported by the closed access group list and the closed access group list to which the terminal device is allowed to access do not have the same closed access group identifier, the access network device fails to verify the terminal device. The access network equipment may deny the access of the terminal equipment.

When the subscription information of the terminal equipment, such as the list of closed access groups that the terminal equipment is allowed to access in the subscription information is changed, the access management function network element will initiate the configuration update of the user equipment to notify the terminal equipment of the updated subscription information . For example, the access management function network element sends a downlink non-access stratum transmission message to the access network device, where the message carries a NAS-PDU containing the updated list of closed access groups that the terminal device is allowed to access, and then receives the NAS-PDU. The network access device transparently transmits the NAS-PDU to the terminal device through DL Information Transfer. Wherein, for a terminal device in a disconnected state (eg inactive state), in order to be able to send the NAS-PDU to the terminal device, the access network device will send a paging message to the terminal device in the notification area of the access network. After the terminal device monitors the paging message, the terminal device will check whether the paging message contains its own identity, and if so, the terminal device can send an RRC recovery request message to the access network device to restore the connected state. After the terminal device is restored to the connected state, the access network device can send the NAS-PDU to the terminal device, so that the terminal device can update the subscription information. And, the access management function network element will also send a mobility restriction list to the access network device, where the mobility restriction list includes the updated list of closed access groups that the terminal device is allowed to access, so as to update the access network The subscription information of the corresponding terminal device stored in the device (eg, a list of closed access groups that the terminal device is allowed to access).

It can be seen that if the updated closed access group list that the terminal device is allowed to access does not have the same closed access group identifier as the closed access group list supported by the access network device, the terminal device will fail because it cannot. The connection state cannot be restored through the verification of the access network equipment. As a result, the terminal device cannot receive the NAS-PDU from the access network device, so that the terminal device cannot update the closed access group list (or subscription information) to which the terminal device is allowed to access in time.

In order to solve the above problems, the present application provides a method for updating non-public network subscription information. The method may include: after the access network device (such as the first access network device) receives the RRC recovery request message from the terminal device, the access network The device determines that the terminal device has not updated the subscription information (for example, the list of closed access groups that the terminal device is allowed to access), and according to the updated subscription information (or referred to as new subscription information), the access network device accesses the terminal device. When the entry verification fails, the access network device may send an RRC reject message or an RRC release message to the terminal device, wherein the RRC reject message or RRC release message includes new subscription information, so that the terminal device can receive the RRC reject message or RRC release message by receiving the RRC reject message or RRC release message. The release message updates the subscription information; or, the access network device may send an RRC recovery message to the terminal device, where the RRC recovery message carries the non-access stratum (non-access stratum, NAS) signaling and/or services that restrict the terminal device from transmitting Indication information of the data, so that the terminal device can restore the connection state when the transmission of NAS signaling and/or service data is restricted, so that the terminal device can receive the NAS-PDU containing the new subscription information from the access network device, so as to The terminal device updates the subscription information.

The method for updating the subscription information of the terminal device can enable the terminal device to update the subscription information through the access network device in time even when the terminal device cannot pass the verification of the access network device.

The method for updating non-public network subscription information provided by the embodiments of the present application will be exemplarily described below with reference to the accompanying drawings.

It should be noted that, in the description of this application, the words "first", "second" and the like are only used to distinguish the description, and are not used to specifically limit a certain feature. In the description of the embodiments of the present application, "and/or" describes the association relationship of the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B may indicate that A exists alone, A and B exist simultaneously, and a single relationship exists. There are three cases of B. The character "/" generally indicates that the associated objects are an "or" relationship. In this application, at least one refers to one or more; multiple refers to two or more.

The method for updating non-public network subscription information provided by the embodiments of this application can be applied to various communication systems, such as: long term evolution (LTE) system, 5th generation (5G) mobile communication system, wireless insurance A true (wireless fidelity, WiFi) system, a future communication system, or a system integrating multiple communication systems, etc., are not limited in the embodiments of the present application. Among them, 5G can also be called new radio (NR).

The method for updating non-public network subscription information provided by the embodiments of this application can be applied to various communication scenarios, for example, can be applied to one or more of the following communication scenarios: enhanced mobile broadband (eMBB), ultra-reliable Low latency communication (ultra reliable low latency communication, URLLC), machine type communication (MTC), massive machine type communication (mMTC), device to device (device to device, D2D), Vehicle to everything (V2X), vehicle to vehicle (V2V), and Internet of things (IoT), etc.

FIG. 1 shows a schematic diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1 , the communication system may include: an access network device 110 and a core network device 120 .

The access network device 110 may also be referred to as a next-generation access network device. The terminal device may communicate with the core network device 120 through the access network device 110 . The access network device 110 can provide functional services such as radio resource management, quality of service management, data encryption and compression for terminal devices.

The access network device 110 and the core network device 120 may communicate through a next generation (next generation, NG) interface, and different access network devices 110 may communicate through an Xn interface.

Optionally, the terminal device may be a user equipment (user equipment, UE), a mobile station (mobile station, MS), or a mobile terminal (mobile terminal, MT) or the like. Specifically, the terminal device 110 may be a mobile phone (“cellular” phone), a mobile phone, a computer, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal Personal digital assistant (PDA), laptop computer, handheld communication device, handheld computing device, satellite wireless device, wireless modem card, TV set top box (STB), customer premise equipment (customer premise equipment) , CPE), wearable devices (such as smart watches, smart bracelets, pedometers, etc.), in-vehicle devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control (industrial control), smart home equipment (for example, refrigerators, TVs, air conditioners, electricity meters, etc.), intelligent robots, workshop equipment, unmanned driving Wireless terminals in (self driving), wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, in smart city wireless terminals, or wireless terminals in smart homes, flying equipment (eg, intelligent robots, hot air balloons, drones, airplanes), and other equipment used for communication on wireless systems, etc. The specific expression form of the terminal device is also not limited.

In some embodiments, the access network device 110 may be a next generation node B (gNB), a next generation evolved node B (ng-eNB), a central unit (central unit, CU), Distributed unit (distributed unit, DU), centralized unit-control plane (central unit-control plane, CU-CP), centralized unit-user plane (central unit-user plane, CU-UP), etc.

Among them, the gNB can provide new radio (NR) control plane and/or user plane protocols and functions for terminal equipment, and access to the 5G core network (5th generation core, 5GC). The ng-eNB can provide the terminal equipment with the protocols and functions of the control plane and/or the user plane of the evolved universal terrestrial radio access (E-UTRA), and access to the 5GC. The CU mainly includes the RRC layer of the gNB, the service data adaptation protocol (SDAP) layer and the packet data convergence protocol (PDCP) layer, or the RRC layer and the PDCP layer of the ng-eNB. The DU mainly includes the radio link control (RLC) layer, medium access control (MAC) layer and physical layer of the gNB or ng-eNB. CU-CP mainly includes the RRC layer in the gNB-CU or ng-eNB-CU, and the control plane in the PDCP layer. CU-UP mainly includes SDAP layer in gNB-CU or ng-eNB-CU, and user plane in PDCP layer.

In some embodiments, the core network device 120 may include a session management function (session management function, SMF), AMF, a network data analysis function (network data analytics function, NWDAF), a user plane function (user plane function, UPF) and the like.

Among them, SMF is mainly responsible for session management (eg: session establishment, session modification and session release), UE IP address allocation and management, selection and control of user plane functions, termination of session management part in NAS messages, etc. AMF is mainly responsible for functions such as access control, mobility management, attachment and detachment, and gateway selection. NWDAF is mainly responsible for data collection, analysis and other functions. UPF is mainly responsible for packet routing and forwarding functions.

It should be noted that the foregoing SMF, AMF, NWDAF, UPF, etc. are only exemplary descriptions of the core network device 120, which are not limited in this application.

It can be understood that the foregoing communication system shown in FIG. 1 is only for illustrating the technical solutions of the embodiments of the present application more clearly, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. For example, the communication system may also include other devices, such as network control devices. The network control device can be an operation management and maintenance (operation administration and maintenance, OAM) system, also known as a network management system. The network control device may manage the aforementioned access network device 110 and core network device 120 .

In addition, those skilled in the art know that, with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

Take the update of the closed access group list (or called the CAG information list of the terminal device) in the subscription information to allow the terminal device to access as an example. Wherein, the CAG information list of the terminal device may include the identifier of the closed access group to which the terminal device is allowed to access. FIG. 2 shows a schematic flowchart of a method for updating subscription information on a non-public network provided by an embodiment of the present application. As shown in FIG. 2, the method for updating subscription information of a non-public network may include the following S201-S204.

S201. An access network device (eg, a first access network device) sends a second message to a terminal device instructing the terminal device to send an RRC recovery request message to the access network device, that is, the second message is used for paging the terminal device.

For example, the second message may be a paging message sent by the access network device to the terminal device to page the terminal device, so that the terminal device sends an RRC recovery request message to the access network device after receiving the paging message.

The access network device may be the last serving access network device (or referred to as the last serving base station) of the terminal device when the terminal device transitions from the connected state to the inactive state. The terminal device can transition from the connected state to the inactive state through the RRC release process. The transmission parameters of the terminal device are retained in the last serving access network device, and the terminal device can perform uplink transmission and/or downlink transmission with the last serving access network device according to the transmission parameters retained in the last serving access network device . The access network device may also be other access network devices near the last serving access network device. For example, other access network devices located within the notification area of the last serving access network device.

When the access network device is the last serving access network device, the access network device may receive a message from the core network device (eg, AMF network element) containing the updated CAG information list of the terminal device (eg, the third message) to determine that the terminal device needs to update the CAG information list, so as to send the above-mentioned second message to the terminal device. Wherein, the message containing the updated CAG information list of the terminal device sent by the core network device may be a mobility restriction list (mobility restriction list, MRL) used by the core network device to update the subscription information of the access network device.

When the access network device is another access network device near the last serving access network device, the access network device may send the received last serving access network device to instruct it to send the second message to the terminal device according to the received A message (such as a sixth message) is sent to the terminal device. For example, the sixth message may be a radio access network (radio access network, RAN) paging message. The last serving access network device may send a RAN paging message to instruct the access network devices near the last serving access network device to the terminal device after receiving the message (such as the above third message) from the core network device. The above second message is sent.

S202. The terminal device sends an RRC recovery request message to the access network device.

The terminal device receives the above-mentioned second message from the access network device, and the terminal device may send an RRC recovery request message to the access network device according to the second message, so as to request to connect with the access network device. For example, the second message is a paging message, the access network device sends the paging message within its own range, and the terminal device that monitors the paging message determines that the paging message contains its own identity, and sends RRC recovery to the access network device request message.

S203. In the case that the terminal device needs to update the CAG information list, the access network device sends a first message to the terminal device.

Wherein, the first message may include the updated CAG information list of the terminal device (or referred to as the first CAG information list). The first message may be an RRC reject message or an RRC release message sent by the access network device to the terminal device.

In some possible implementations, the first message may further include a cause value (eg, a first cause value), and the first cause value may be used to instruct the terminal device to update the CAG information list. For example, the first cause value may be "UE subscription update". So that the subsequent terminal equipment can update the CAG information list according to the indication of the first cause value after receiving the first message.

When the access network device receives the RRC recovery request message sent by the terminal device, the access network device may verify the terminal device. For example, the access network device verifies the terminal device according to the CAG information list of the terminal device and the CAG information list supported by the access network device (eg, the identification list of CAGs supported by the access network device). Wherein, since the access network device has updated its configured subscription information according to the MRL sent by the core network device, the CAG information list of the terminal device may be the updated CAG information list of the terminal device (that is, the first CAG information list). list of information). When the CAG information list of the terminal device and the CAG information list supported by the core network device do not have the same CAG identifier, the access network device fails to verify the terminal device. When the CAG information list of the terminal device and the CAG information list supported by the core network device have the same CAG identifier, the access device passes the verification of the terminal device.

In some possible implementations, when the access network device fails to verify the terminal device, the access network device may reject or release the access of the terminal device by sending the first message. The updated CAG information list of the terminal device is carried in the first message, so that the terminal device updates the CAG information list according to the first message.

In other possible implementations, in the case that the access network device passes the verification of the terminal device, although the access network device may allow the terminal device to access, the CAG information list (or not yet updated) needs to be updated by the terminal device. CAG information list), the access network device can also reject or release the access of the terminal device by sending the first message, and the first message carries the updated CAG information list of the terminal device, so that the terminal device can be based on the first message. Update the list of CAG information. In this way, the terminal device can directly update the CAG information list without entering the connected state, thereby improving the update efficiency of the CAG information list.

In this embodiment of the present application, before sending the first message, the access network device may first determine whether the terminal device needs to update the CAG information list. For example, the access network device may determine that the terminal device needs to update the CAG information list in the following possible ways.

In a possible manner, the access network device is the last serving access network device, which can receive a message (such as a third message) from a core network device (such as an AMF network element), and the message includes the updated terminal device. List of CAG information. The access network device can update the subscription information of the terminal device saved by itself according to the third message (for example, save the CAG information list of the updated terminal device), and the access network device can also save the subscription information of the terminal device before the update (such as , save the CAG information list of the terminal equipment before the update), that is, the access network equipment saves the subscription information of the two sets of terminal equipment. If the access network device can pass the verification of the terminal device according to the CAG information list of the terminal device before the update, but cannot pass the verification of the terminal device according to the CAG information list of the terminal device after the update, the access network device can pass the verification of the terminal device. It is determined that the terminal device needs to update the CAG information list.

In another possible manner, the access network device is the last serving access network device, which can receive a message (such as a third message) from a core network device (such as an AMF network element), and the message contains the updated CAG information list of terminal equipment. The access network device may update the subscription information of the terminal device saved by itself according to the third message, that is, the access network device only saves the latest subscription information of the terminal device. The access network device may further configure an identifier (eg, the first identifier) for indicating that the CAG information list of the terminal device has not been updated according to the receipt of the third message. In the case of receiving the RRC recovery request message sent by the terminal device, the access network device may determine, according to the first identifier, that the terminal device needs to update the CAG information list.

In another possible manner, the access network device is the last serving access network device, which can receive a message (such as a third message) from a core network device (such as an AMF network element), and the message contains the updated CAG information list of terminal equipment. The access network device may update the subscription information of the terminal device saved by itself according to the third message. Afterwards, the access network device may send a second message (eg, a paging message) to the terminal device to instruct the terminal device to send the RRC recovery request message to it. Wherein, the second message carries a cause value (eg, a second cause value), and the second cause value may be used to instruct the terminal device to update the CAG information list. Since the second message carries the second cause value, the subsequent RRC recovery request message sent by the terminal device according to the second message may also carry the second cause value, so that the access network device receives the RRC recovery request message In the case of , the access network device may determine that the terminal device needs to update the CAG information list according to the indication of the second cause value therein.

In another possible manner, the access network device is another access network device near the last serving access network device, which can receive a message (eg, the fifth message) from the last serving access network device. The fifth message may be a terminal device context request response message or a terminal device context request failure message or the like. The fifth message may include the updated CAG information list of the terminal device, and a first indication that can be used to indicate that the CAG information list of the terminal device is updated. When the access network device receives the fifth message, the access network device may determine, according to the first indication therein, that the terminal device needs to update the CAG information list. Optionally, before the access network device receives the fifth message, the access network device may also send a message (eg, a fourth message) for requesting the context request of the terminal device to the last serving access network device, so as to send the last message to the last serving access network device. The serving access network device requests the context of the terminal device, which is not limited here.

S204, the terminal device updates the CAG information list of the terminal device according to the received first message.

In some possible implementations, after updating the CAG information list, the terminal device may enter an idle state to select an appropriate cell to access according to the updated CAG information list of the terminal device.

In some possible implementations, the access network device (such as the first access network device) may further configure the terminal device in the system message to configure the preamble resources, time domain resources, and frequency domain resources dedicated to updating the CAG information list. At least one, which is not limited in the embodiments of the present application.

Based on the method shown in FIG. 2 , when the terminal device is in an inactive state and cannot pass the verification of the access network device and cannot be connected to the access network device, the access network device can send an RRC reject message or When the RRC release message is carried, the updated CAG information list of the terminal device is carried, so as to send the updated CAG information list of the terminal device to the terminal device, so that the terminal device can update the CAG information list. The terminal equipment in the inactive state can also update the CAG information list in time.

3, the terminal equipment is the UE, the access network equipment is the last serving base station, the core network equipment is the AMF network element, the terminal equipment is in the inactive state, and the updated CAG information list of the UE (or the first The CAG information list) and the CAG information list (or referred to as the second CAG information list) supported by the access network device do not have the same CAG identifier as an example, the method shown in FIG. 2 will be described in detail.

FIG. 3 is a schematic flowchart of another method for updating subscription information on a non-public network provided by an embodiment of the present application. As shown in FIG. 3 , the method for updating subscription information of a non-public network may include the following S301-S307.

S301. The AMF network element sends an MRL to the last serving base station, where the MRL includes the updated CAG information list of the UE.

The MRL sent by the AMF network element to the last serving base station can be used by the last serving base station to update the subscription information of the terminal equipment stored in the last serving base station, for example, to update the CAG information list of the terminal equipment (eg, UE) stored in the last serving base station. Therefore, the updated CAG information list of the UE is included in the MRL. The last serving base station may save the updated CAG information of the UE when receiving the MRL, so that the last serving base station can determine that the UE needs to update the CAG information list according to the stored CAG information and the CAG information before updating.

S302: After the serving base station receives the MRL at last, it saves the updated CAG information list of the UE in the MRL, and saves the CAG information list of the UE before the update.

S303: Finally, the serving base station sends a paging message to the UE.

For this S303, reference may be made to the description of S201 in the method shown in FIG. 2, and details are not described here.

S304. After receiving the paging message, the UE sends an RRC recovery request message to the last serving base station.

After the UE monitors the paging message, the UE can check whether there is a corresponding identifier in the paging message, and if so, the UE can send an RRC recovery request message to the last serving base station to request connection with the last serving base station.

S305. Finally, the serving base station verifies the UE.

After the last serving base station receives the RRC recovery request message, the last serving base station may verify the UE to determine whether the UE is allowed to access and whether the UE needs to update the CAG information list. If the updated CAG information list of the UE does not have the same CAG identifier as the CAG information list supported by the last serving base station (that is, the last serving base station does not match the updated CAG information list of the UE, or the verification of the UE fails) ), the last serving base station does not allow the UE to access; if at this time, the CAG information list before the update and the CAG information list supported by the last serving base station have the same CAG identifier (that is, the last serving base station and the CAG information list before the update are suitable for configuration), then finally the serving base station can determine that the UE needs to update the CAG information list.

S306 , after the UE fails to pass the verification, finally the serving base station sends an RRC rejection message or an RRC release message to the UE.

When the serving base station determines that the UE needs to update the CAG information list at last, the RRC reject message or the RRC release message may carry the updated CAG information list of the UE.

Optionally, in the RRC reject message or the RRC release message, the cause value "UE subscription information update" may also be carried to instruct the UE to update the CAG information list, so that the subsequent UE can update the CAG information list according to the indication of the cause value.

S307, the UE updates the CAG information list according to the received RRC reject message or the RRC release message.

For this S307, reference may be made to the description of S204 in the method shown in FIG. 2, and details are not described here.

Based on the method shown in FIG. 3 , when the UE is in an inactive state and cannot pass the verification of the last serving base station, the last serving base station can determine the UE needs according to the saved CAG information list of the updated UE and the CAG information list before the update. The CAG information list is updated, so that when the UE is not allowed to access, the UE can update the CAG information list by carrying the updated CAG information list of the UE in the RRC rejection message or the RRC release message sent to the UE. Therefore, the UE in the inactive state can update the CAG information list in time.

In the following, with reference to Figure 4, continue to take the terminal equipment as the UE, the access network equipment as the last serving base station, the core network equipment as the AMF network element, the terminal equipment in the inactive state, and the updated CAG information list of the UE (or referred to as the first For example, a CAG information list) and a CAG information list (or referred to as a second CAG information list) supported by the access network device do not have the same CAG identifier, the method shown in FIG. 2 will be described in detail.

FIG. 4 is a schematic flowchart of another method for updating subscription information on a non-public network provided by an embodiment of the present application. As shown in FIG. 4 , the method for updating subscription information of a non-public network may include the following S401-S408.

S401. The AMF network element sends an MRL to the last serving base station, where the MRL includes the updated CAG information list of the UE.

The MRL sent by the AMF network element to the last serving base station can be used by the last serving base station to update the subscription information of the terminal equipment stored in the last serving base station, such as updating the CAG information list of the terminal equipment (eg, UE) stored in the last serving base station. Therefore, the updated CAG information list of the UE is included in the MRL.

S402. After the last serving base station receives the MRL, it updates the stored CAG information list of the UE to the updated CAG information list of the UE, and configures an identifier for indicating the update of the CAG information list of the UE.

For example, the identifier used to indicate the update of the CAG information list of the UE may be an identifier of "no subscription information is updated for the UE".

By configuring the last serving base station with an identifier for indicating the update of the CAG information list of the UE, it is convenient for the subsequent last serving base station to determine that the UE needs to update the CAG information list according to the identifier.

S403. Finally, the serving base station sends a paging message to the UE.

For this S403, reference may be made to the description of S201 in the method shown in FIG. 2 , which will not be repeated here.

S404. After receiving the paging message, the UE sends an RRC recovery request message to the last serving base station.

For the S404, reference may be made to the description of S304 in the method shown in FIG. 3, which is not repeated here.

S405. Finally, the serving base station verifies the UE.

After the last serving base station receives the RRC recovery request message, the last serving base station may verify the UE to determine whether the UE is allowed to access and whether the UE needs to update the CAG information list. If the updated CAG information list of the UE does not have the same CAG identifier as the CAG information list supported by the last serving base station (that is, the last serving base station does not match the updated CAG information list of the UE, or the verification of the UE fails) ), the last serving base station does not allow the UE to access; if the last serving base station is also configured with the above-mentioned identifier for instructing the UE to update the CAG information list, the last serving base station can determine that the UE needs to update the CAG information list.

S406 , after the verification of the UE fails, finally the serving base station sends an RRC rejection message or an RRC release message to the UE.

For the S406, reference may be made to the description of S306 in the method shown in FIG. 3, which is not repeated here.

S407. Finally, after sending the RRC reject message or the RRC release message, the serving base station deletes the configured identifier for indicating the update of the CAG information list of the UE.

In some possible implementations, the last serving base station may delete the above identifier after receiving the L2ACK from the UE to the RRC reject message or the RRC release message, that is, the last serving base station deletes the identifier after confirming that the UE has successfully received the updated CAG information list the above identification.

The last serving base station deletes the above identifier, which can avoid that when the subsequent UE sends an RRC recovery request to the last serving base station, the last serving base station performs S406 again, causing the UE to repeatedly update the CAG information list.

S408, the UE updates the CAG information list according to the received RRC reject message or the RRC release message.

For this S408, reference may be made to the description of S204 in the method shown in FIG. 2, which will not be repeated here.

Based on the method shown in FIG. 4 , when the UE is in an inactive state and cannot pass the verification of the last serving base station, the last serving base station may determine that the UE needs to update the CAG information list according to the configured identifier for instructing the UE to update the CAG information list , so that when the UE is not allowed to access, the UE can update the CAG information list by carrying the updated CAG information list of the UE in the RRC reject message or the RRC release message sent to the UE. Therefore, the UE in the inactive state can update the CAG information list in time.

In the following, with reference to Figure 5, continue to take the terminal equipment as the UE, the access network equipment as the last serving base station, the core network equipment as the AMF network element, the terminal equipment in the inactive state, and the updated CAG information list of the UE (or referred to as the first CAG information list). For example, a CAG information list) and a CAG information list (or referred to as a second CAG information list) supported by the access network device do not have the same CAG identifier, the method shown in FIG. 2 will be described in detail.

FIG. 5 is a schematic flowchart of another method for updating subscription information in a non-public network provided by an embodiment of the present application. As shown in FIG. 5 , the method for updating subscription information of a non-public network may include the following S501-S507.

S501. The AMF network element sends an MRL to the last serving base station, where the MRL includes the updated CAG information list of the UE.

S502. Finally, according to the received MRL, the serving base station updates the stored CAG information list of the UE to the updated CAG information list of the UE.

S503. Finally, the serving base station sends a paging message to the UE, and the paging message may carry a reason value for indicating the update of the CAG information list of the UE.

For example, the cause value may be "UE subscription information update".

In addition, for this S503, reference may also be made to the description of S201 in the method shown in FIG. 2, which will not be repeated here.

S504. After receiving the paging message, the UE sends an RRC recovery request message to the last serving base station, where the RRC recovery request message carries the above-mentioned reason value.

After the UE monitors the paging message, the UE can check whether there is a corresponding identifier in the paging message, and if so, the UE can send an RRC recovery request message to the last serving base station to request connection with the last serving base station. When the paging message it monitors carries the cause value, the UE may also carry the cause value in the RRC recovery request message sent by the UE.

S505. Finally, the serving base station verifies the UE.

After the last serving base station receives the RRC recovery request message, the last serving base station may verify the UE to determine whether the UE is allowed to access and whether the UE needs to update the CAG information list. If the updated CAG information list of the UE does not have the same CAG identifier as the CAG information list supported by the last serving base station (that is, the last serving base station does not match the updated CAG information list of the UE, or the verification of the UE fails) ), the last serving base station does not allow the UE to access; if the RRC recovery request received by the last serving base station carries the above-mentioned reason value for instructing the UE to update the CAG information list, then the last serving base station can determine that the UE needs to update the CAG information list.

S506 , after the UE fails to pass the verification, finally the serving base station sends an RRC rejection message or an RRC release message to the UE.

For the S506, reference may be made to the description of S306 in the method shown in FIG. 3, which is not repeated here.

S507, the UE updates the CAG information list according to the received RRC reject message or the RRC release message.

For this S507, reference may be made to the description of S204 in the method shown in FIG. 2 , which will not be repeated here.

Based on the method shown in FIG. 5 , when the UE is in an inactive state and cannot pass the verification of the last serving base station, the last serving base station can determine that the UE needs to update the CAG information list according to the reason value carried in the received RRC recovery request message, Therefore, when the UE is not allowed to access, the updated CAG information list of the UE is carried in the RRC reject message or the RRC release message sent to the UE, so that the UE can update the CAG information list. Therefore, the UE in the inactive state can update the CAG information list in time.

6, the terminal device is UE, the communication system has two access network devices (eg, a first access network device and a second access network device), and the first access network device is the last serving base station Other nearby base stations (or called target base stations, that is, the base station that receives the RRC recovery request message sent by the UE), the second access network device is the last serving base station, the core network device is the AMF network element, and the terminal device is in an inactive state, For example, the updated CAG information list of the UE (or the first CAG information list) and the CAG information list (or the second CAG information list) supported by the access network equipment do not have the same CAG identifier. The method shown in 2 is described in detail.

FIG. 6 is a schematic flowchart of another method for updating subscription information in a non-public network provided by an embodiment of the present application. As shown in FIG. 6 , the method for updating subscription information of a non-public network may include the following S601-S6010.

S601. The AMF network element sends an MRL to the last serving base station, where the MRL includes the updated CAG information list of the UE.

The MRL sent by the AMF network element to the last serving base station can be used for the last serving base station to update the subscription information of the terminal equipment, for example, to update the CAG information list of the terminal equipment (eg, UE) configured in the last serving base station. Therefore, the updated CAG information list of the UE is included in the MRL.

S602. Finally, according to the received MRL, the serving base station updates the CAG information list of the UE saved by the serving base station to the updated CAG information list of the UE.

S603. Finally, the serving base station sends a RAN paging message to the target base station.

For this S603, reference may be made to the description of other access network devices near the last serving access network device in S201 in the method shown in FIG. 2, which will not be repeated here.

S604. After receiving the RAN paging message, the target base station sends the paging message to the UE.

For this S604, reference may be made to the description in S201 in the method shown in FIG. 2 that the access network device is other access network devices near the last serving access network device, which will not be repeated here.

S605. After receiving the paging message, the UE sends an RRC recovery request message to the target base station.

After the UE monitors the paging message, the UE can check whether there is a corresponding identifier in the paging message, and if so, the UE can send an RRC recovery request message to the target base station to request to connect with the target base station.

S606: After receiving the RRC recovery request message, the target base station sends a context request message to the last serving base station to request the context of the UE from the last serving base station.

S607. Finally, after receiving the context request message, the serving base station sends a context request response message or a context request failure message to the target base station.

The context request response message or the context request failure message may carry the updated CAG information list of the UE. It may also carry indication information for instructing the UE to update the CAG information list. For example, the indication information may be "instructing UE subscription information to update".

S608: After receiving the context request response message or the context request failure message, the target base station verifies the UE.

The target base station can verify the UE to determine whether the UE is allowed to access and whether the UE needs to update the CAG information list. If the updated CAG information list of the UE and the CAG information list supported by the target base station do not have the same CAG identifier (that is, the target base station does not match the updated CAG information list of the UE, or the UE verification fails), The target base station does not allow the UE to access; if the context request response message or the context request failure message received by the target base station carries the indication information used to instruct the UE to update the CAG information list, the target base station can determine that the UE needs to update the CAG information list.

S609: After the UE fails to be verified, the target base station sends an RRC reject message or an RRC release message to the UE.

When the target base station determines that the UE needs to update the CAG information list, the RRC reject message or the RRC release message may carry the updated CAG information list of the UE. The updated CAG information list of the UE may be the updated CAG information list of the UE carried in the context request response message or the context request failure message received by the target base station.

S6010, the UE updates the CAG information list according to the received RRC reject message or RRC release message.

For the S6010, reference may be made to the description of S204 in the method shown in FIG. 2 , which will not be repeated here.

In an embodiment of the present application, optionally, FIG. 7 is a schematic flowchart of another method for updating subscription information on a non-public network provided by an embodiment of the present application. As shown in FIG. 7 , the non-public network subscription information update method includes S701-S7010, which are basically the same as the method shown in FIG. 6, that is, S701-S7010 correspond to S601-S6010 respectively. The difference is that the RAN paging message in S703 may also carry a cause value for indicating the update of the CAG information list of the UE, for example, the cause value "UE subscription information update". At this time, the paging message in S704 and the RRC recovery request message in S705 may also carry the above-mentioned reason value. In this way, when the target base station receives the RRC recovery request message, it can determine, according to the indication of the cause value, that the purpose of the UE sending the RRC recovery request is to update the CAG information list.

Based on the method shown in FIG. 6 and the method shown in FIG. 7 , when the UE is in an inactive state and the UE sends an RRC recovery request message to other base stations near the last serving base station and fails to pass the verification, the target base station can The indication information carried in the context request response message/context request failure message, and/or the reason value carried in the RRC recovery request message determines that the UE needs to update the CAG information list, so that when the UE is not allowed to access, the target base station The RRC reject message or the RRC release message sent by the UE carries the updated CAG information list of the UE, so that the UE can update the CAG information list. Therefore, the UE in the inactive state can update the CAG information list in time.

In the embodiment of the present application, another method for updating non-public network subscription information is also provided. The method may include: when the access network device receives the RRC recovery request message, the access network device may also send a message to the terminal device. RRC recovery message, and the RRC recovery message carries an indication for restricting the terminal equipment from transmitting non-access stratum NAS signaling and/or service data, such as the second indication. In order to enable the terminal device to temporarily connect with the access network device in a limited manner, so as to receive the NAS-PDU containing the new subscription information sent by the core network device (such as the AMF network element) from the access network device.

8, the terminal equipment is the UE, the access network equipment is the last serving base station, the core network equipment is the AMF network element, the terminal equipment is in the inactive state, and the updated CAG information list of the UE (or the first The CAG information list) and the CAG information list (or referred to as the second CAG information list) supported by the access network device do not have the same CAG identifier as an example, and the method for updating non-public network subscription information provided by the embodiment of the present application will be described in detail. .

FIG. 8 is a schematic flowchart of another method for updating subscription information on a non-public network provided by an embodiment of the present application. As shown in FIG. 8 , the method for updating subscription information of a non-public network may include the following S801-S8011.

S801, the AMF network element sends a NAS-PDU and an MRL to the last serving base station, where both the NAS-PDU and the MRL include the updated CAG information list of the UE.

The NAS-PDU sent by the AMF network element to the last serving base station is used for transparently transmitting the last serving base station to the UE to update the CAG information list of the UE. Therefore, the updated CAG information list of the UE is included in the NAS-PDU. Finally, the serving base station can also save the updated CAG information of the UE in the MRL when receiving the MRL, so that the last serving base station can determine that the UE needs to update the CAG information list according to the saved CAG information and the CAG information before updating.

S802. After the serving base station receives the MRL at last, it saves the updated CAG information list of the UE in the MRL, and saves the CAG information list of the UE before the update.

S803. Finally, the serving base station sends a paging message to the UE.

For this S803, reference may be made to the description of S201 in the method shown in FIG. 2 , which will not be repeated here.

S804. After receiving the paging message, the UE sends an RRC recovery request message to the last serving base station.

S805. Finally, the serving base station verifies the UE.

S806: In the case where the last serving base station determines that the UE needs to update the CAG information list, after the UE fails to pass the verification, the last serving base station sends an RRC recovery message to the UE, and the RRC recovery message carries the NAS signaling for restricting the UE from transmitting ( Such as service request, PDU session control establishment request, etc.) and/or indication of service data. The indication can prevent the UE from sending data to the core network device through the last serving base station after the UE establishes a temporary connection with the last serving base station.

Through the RRC recovery message, the UE can establish a temporary connection with the last serving base station under the condition of restricted transmission, so that the last serving base station can transparently transmit the NAS- PDUs.

S807. After receiving the RRC recovery message, the UE sends an RRC recovery complete message to the last serving base station.

S808, the UE enters a connected state, and establishes a connection with the last serving base station.

S809: Finally, the serving base station sends a NAS-PDU to the UE.

S8010, the UE updates the CAG information list according to the received NAS-PDU.

Optionally, after S8010, this embodiment of the present application may further include S8011: finally, the serving base station sends an RRC release message to the UE.

The RRC release message is used to make the UE enter an idle state after the UE receives the NAS-PDU, so as to avoid a long-term connection between the UE and the last serving base station.

Based on the method shown in FIG. 8 , when the terminal device is in an inactive state and cannot pass the verification of the last serving base station, the last serving base station can determine the UE according to the saved updated CAG information list of the UE and the CAG information list before the update The CAG information list needs to be updated, so that in the case of limiting the information transmitted by the UE, by establishing a temporary connection with the UE, so that the UE can receive the NAS- PDU, so that the UE in the inactive state can update the CAG information list in time.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various nodes. It can be understood that each node, such as a terminal device, a first access network device, and a second access network device, includes hardware structures and/or software modules corresponding to performing the functions in order to implement the above functions. Those skilled in the art should easily realize that, in conjunction with the algorithm steps of the examples described in the embodiments disclosed herein, the methods of the embodiments of the present application can be implemented in hardware, software, or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the terminal device, the first access network device, and the second access network device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or two More than one function is integrated in one processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

During specific implementation, each network element shown in this application, such as the terminal device, the first access network device, and the second access network device, may adopt the composition structure shown in FIG. 9 or include the components shown in FIG. 9 . FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application. When the communication device has the function of the terminal device described in the embodiment of the present application, the communication device may be a terminal device or a chip or an on-chip device in the terminal device. system. When the communication device has the function of the access network device described in the embodiment of the present application, the communication device may be the access network device or a chip or a system-on-chip in the access network device.

As shown in FIG. 9 , the communication device may include a processor 901 , a communication line 902 and a transceiver 903 . The processor 901 , the memory 904 and the transceiver 903 may be connected through a communication line 902 . In one example, the processor 901 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 9 .

As an optional implementation manner, the communication apparatus includes a plurality of processors, for example, in addition to the processor 901 in FIG. 9 , a processor 907 may also be included.

The processor 901 may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processing (DSP), a microprocessor, or a microcontroller. , programmable logic device (PLD) or any combination of them. The processor 901 may also be other apparatuses having processing functions, such as circuits, devices or software modules.

The communication line 902 is used to transmit information between various components included in the communication device.

The transceiver 903 is used to communicate with other devices or other communication networks. The other communication network may be Ethernet, radio access network (RAN), wireless local area networks (WLAN) and the like. The transceiver 903 may be an interface circuit, a pin, a radio frequency module, a transceiver or any device capable of implementing communication.

Further, the communication device may further include a memory 904 . Memory 904 for storing instructions. Wherein, the instructions may be computer programs.

Wherein, the memory 904 can be a read-only memory (read_only memory, ROM) or other types of static storage devices that can store static information and/or instructions, or can be a random access memory (random access memory, RAM) or can store information and/or other types of dynamic storage devices for instructions, and may also be electrically erasable programmable read-only memory (EEPROM), compact disc read_only memory (CD_ROM), or other optical disk storage, optical disks Storage, magnetic disk storage media or other magnetic storage devices, optical disc storage includes compact discs, laser discs, optical discs, digital versatile discs, or Blu-ray discs, etc.

It should be noted that the memory 904 may exist independently of the processor 901 , or may be integrated with the processor 901 . The memory 904 may be used to store instructions or program code or some data or the like. The memory 904 may be located in the communication device or outside the communication device, which is not limited. When the processor 901 executes the instructions stored in the memory 904, the method for updating the subscription information of the non-public network provided by the foregoing embodiments of the present application can be implemented.

As an optional implementation manner, the communication apparatus further includes an output device 905 and an input device 906 . Illustratively, the input device 906 is a device such as a keyboard, a mouse, a microphone or a joystick, and the output device 905 is a device such as a display screen, a speaker, and the like.

It should be noted that the communication device may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system or a device with a similar structure in FIG. 9 . In addition, the composition shown in FIG. 9 does not constitute a limitation on the communication device. In addition to the components shown in FIG. 9 , the communication device may include more or less components than those shown in the figure, or combine some components , or a different component arrangement.

In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

FIG. 10 shows a structural diagram of a communication apparatus 1000. The communication apparatus 1000 may be a first access network device, a chip in the first access network device, a system on a chip, or other devices capable of implementing the first access in the above method. The communication apparatus 1000 may be configured to perform the function of the first access network device involved in the above method embodiments. As an implementable manner, the communication apparatus 1000 shown in FIG. 10 includes: a receiving unit 1001 , a processing unit 1002 , and a sending unit 1003 .

The receiving unit 1001 may be configured to receive an RRC recovery request message sent by a terminal device;

The sending unit 1003 can be configured to send a first message to the terminal device, where the first message includes a first CAG information list, where the first CAG information list is the updated CAG information list of the terminal device, and the first message is an RRC rejection message or RRC release message.

In a possible design, the sending unit 1003 is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message includes the second message Cause value, the second cause value is used to indicate the update of the CAG information list of the terminal device; the RRC recovery request message includes the second cause value.

In a possible design, the receiving unit 1001 is further configured to receive a third message sent by the core network device, where the third message includes the first CAG information list; the processing unit 1002 is configured to set the first identifier, the first identifier using The list of CAG information to indicate the terminal device has not been updated.

In a possible design, after sending the first message to the terminal device, the processing unit 1002 is further configured to delete the first identifier.

In a possible design, the sending unit 1003 is further configured to send a fourth message to the second access network device, where the fourth message is used to request the context of the terminal device; the receiving unit 1001 is further configured to receive the second access network device The fifth message sent by the network device includes a first CAG information list and a first indication, where the first indication is used to instruct the terminal device to update the CAG information list.

In a possible design, the receiving unit 1001 is further configured to receive a sixth message sent by the second access network device, where the sixth message includes a second cause value, and the second cause value is used to indicate the CAG information list of the terminal device update; the sending unit 1003 is further configured to send a second message to the terminal device, the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, the second message includes a second cause value; the RRC recovery request The message includes a second cause value.

In a possible design, the processing unit 1002 is further configured to configure, in the system message, at least one of a preamble resource, a time domain resource, and a frequency domain resource dedicated to updating the CAG information list by the terminal device.

Specifically, each step involved in the first access network device in the method embodiments shown in FIG. 2 to FIG. 7 can be referred to the corresponding functional unit or module of the apparatus, and the communication apparatus can be used to execute the aforementioned non-public network The function of the first access network device in the subscription information update method can therefore achieve the same effect as the aforementioned non-public network subscription information update method, which will not be repeated here.

As another achievable manner, the communication apparatus 1000 shown in FIG. 10 may also be used to execute the function of the first access network device involved in the method embodiment shown in FIG. 8 .

For example, the receiving unit 1001 may be configured to receive an RRC recovery request message sent by the terminal device; the sending unit 1003 may be configured to send an RRC recovery message to the terminal device, where the RRC recovery message includes a second indication, and the second indication is used to restrict the terminal device Transport non-access stratum NAS signaling and/or service data.

Specifically, each step involved in the first access network device in the method embodiment shown in FIG. 8 can be cited as a functional unit or module corresponding to the device, and the communication device can be used to perform the aforementioned non-public network subscription information update The function of the first access network device in the method can therefore achieve the same effect as the foregoing method for updating the subscription information of a non-public network, which will not be repeated here.

FIG. 11 shows a structural diagram of a communication apparatus 1100. The communication apparatus 1100 may be a second access network device, a chip in the second access network device, a system on a chip, or other devices capable of implementing the second access in the above method. The communication apparatus 1100 may be configured to perform the function of the second access network device involved in the foregoing method embodiments. As an implementable manner, the communication apparatus 1100 shown in FIG. 11 includes: a receiving unit 1101 and a sending unit 1102 .

The receiving unit 1101 may be configured to receive a fourth message sent by the first access network device, where the fourth message is used to request the context of the terminal device;

The sending unit 1102 may be configured to send a fifth message to the first access network device, where the fifth message includes a first CAG information list and a first indication, and the first indication is used to instruct the terminal device to update the CAG information list.

In a possible design, the sending unit 1102 is further configured to send a sixth message to the first access network device, where the sixth message is used to instruct the first access network device to send a second message, and the sixth message includes the second Cause value, the second cause value is used to indicate the update of the CAG information list of the terminal device.

Specifically, each step involved in the second access network device in the method embodiments shown in FIG. 6 and FIG. 7 can be referred to the corresponding functional unit or module of the device, and the communication device can be used to execute the aforementioned non-public network The function of the second access network device in the subscription information update method can therefore achieve the same effect as the aforementioned non-public network subscription information update method, which will not be repeated here.

FIG. 12 shows a structural diagram of a communication apparatus 1200. The communication apparatus 1200 may be a terminal device, a chip in the terminal device, a system-on-chip, or other devices capable of implementing the functions of the terminal device in the above method. The communication apparatus 1200 It can be used to execute the functions of the terminal equipment involved in the above method embodiments. As an implementable manner, the communication apparatus 1200 shown in FIG. 12 includes: a receiving unit 1201 and a sending unit 1202 .

A sending unit 1202, configured to send an RRC recovery request message to the first access network device;

A receiving unit 1201, configured to receive a first message from a first access network device, where the first message is an RRC reject message or an RRC release message; the first message includes a first CAG information list, where the first CAG information list is The updated CAG information list of the terminal device.

In a possible design, the receiving unit 1201 is further configured to receive a second message sent by the first access network device, the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device, and the second message is used to instruct the terminal device to send an RRC recovery request message to the first access network device. The second message includes the second cause value, and the second cause value is used to indicate the update of the CAG information list of the terminal device; the RRC recovery request message includes the second cause value.

Specifically, each step involved in the terminal equipment in the method embodiments shown in the foregoing FIG. 2 to FIG. 7 can be referred to the corresponding functional units or modules of the apparatus, and the communication apparatus can be used to execute the foregoing method for updating subscription information on a non-public network Therefore, it can achieve the same effect as the aforementioned non-public network subscription information update method, which will not be repeated here.

As another achievable manner, the communication apparatus 1200 shown in FIG. 12 can also be used to execute the functions of the terminal device involved in the method embodiment shown in FIG. 8 .

For example, the sending unit 1202 can be configured to send an RRC recovery request message to the first access network device;

The receiving unit 1201 may be configured to receive an RRC recovery message sent by the first access network device, where the RRC recovery message includes a second indication, and the second indication is used to restrict the terminal device from transmitting NAS signaling and/or service data.

Specifically, each step involved in the terminal device in the method embodiment shown in FIG. 8 can be referred to the corresponding functional unit or module of the device, and the communication device can be used to execute the terminal device in the aforementioned non-public network subscription information update method. Therefore, it can achieve the same effect as the aforementioned non-public network subscription information update method, which will not be repeated here.

An embodiment of the present application further provides a communication system, where the communication system may include: a terminal device, a first access network device, and a second access network device. The first access network device may have the function of the above communication apparatus 1000, the second access network device may have the function of the above communication apparatus 1100, and the terminal device may have the function of the above communication apparatus 1200.

Embodiments of the present application also provide a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by instructing the relevant hardware by a computer program, the program can be stored in the above computer-readable storage medium, and when the program is executed, it can include the processes in the above method embodiments. . The computer-readable storage medium may be the terminal device of any of the foregoing embodiments, such as: an internal storage unit including a data sending end and/or a data receiving end, such as a hard disk or a memory of the terminal device. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned terminal device, such as a plug-in hard disk equipped on the above-mentioned terminal device, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, Flash card (flash card), etc. Further, the above-mentioned computer-readable storage medium may also include both an internal storage unit of the above-mentioned terminal device and an external storage device. The above-mentioned computer-readable storage medium is used for storing the above-mentioned computer program and other programs and data required by the above-mentioned terminal device. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

The embodiments of the present application also provide a computer instruction. All or part of the processes in the foregoing method embodiments may be completed by computer instructions to instruct relevant hardware (such as computers, processors, network devices, and terminals, etc.). The program can be stored in the above-mentioned computer-readable storage medium.

The embodiments of the present application also provide a chip system. The chip system may be composed of chips, and may also include chips and other discrete devices, which is not limited. The chip system includes a processor and a transceiver, and all or part of the processes in the above method embodiments can be completed by the chip system. For example, the chip system can be used to implement the functions performed by the terminal device in the above method embodiments, or realize The functions performed by the first access network device or the second access network device in the foregoing method embodiments.

In a possible design, the chip system further includes a memory for storing program instructions and/or data. When the chip system is running, the processor executes the program instructions stored in the memory, so that the The chip system executes the function executed by the terminal device in the above method embodiment, or the function executed by the first access network device in the above method embodiment, or the function executed by the terminal device in the above method embodiment.

In this embodiment of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement or The methods, steps and logic block diagrams disclosed in the embodiments of this application are executed. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

In this embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or may also be a volatile memory (volatile memory), for example Random-access memory (RAM). Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory in this embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, for storing instructions and/or data.

It should be noted that the terms "comprising" and "having" in the description, claims and drawings of the present application and any modifications thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated as required. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be Incorporation may either be integrated into another device, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place, or may be distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, which are stored in a storage medium , including several instructions to make a device, such as a single chip microcomputer, a chip, etc., or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for updating non-public network subscription information, characterized in that the method comprises:

The first access network device receives a radio resource control RRC recovery request message sent by the terminal device;

The first access network device sends a first message to the terminal device, where the first message includes a first closed access group CAG information list, where the first CAG information list is the updated terminal device The CAG information list of , the first message is an RRC reject message or an RRC release message.
The method according to claim 1, wherein the first message further includes a first cause value, and the first cause value is used to instruct the terminal device to update the CAG information list.
The method according to claim 1 or 2, wherein the method further comprises:

The first access network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to send the RRC recovery request message to the first access network device, the first The second message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated;

The RRC recovery request message includes the second cause value.
The method according to claim 1 or 2, wherein the method further comprises:

receiving, by the first access network device, a third message sent by the core network device, where the third message includes the first CAG information list;

The first access network device sets a first identifier, where the first identifier is used to indicate that the CAG information list of the terminal device is not updated.
The method according to claim 4, wherein the method further comprises:

After the first access network device sends the first message to the terminal device, the first access network device deletes the first identifier.
The method according to claim 1 or 2, wherein the method further comprises:

sending, by the first access network device, a fourth message to the second access network device, where the fourth message is used to request the context of the terminal device;

The first access network device receives a fifth message sent by the second access network device, where the fifth message includes the first CAG information list and a first indication, where the first indication is used to indicate the The CAG information list of the terminal equipment is updated.
The method according to claim 6, wherein the method further comprises:

The first access network device receives a sixth message sent by the second access network device, where the sixth message includes a second cause value, where the second cause value is used to indicate the CAG information of the terminal device list update;

The first access network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to send the RRC recovery request message to the first access network device, the first The second message includes the second cause value;

The RRC recovery request message includes the second cause value.
The method according to any one of claims 1 to 7, wherein the method further comprises:

The first access network device configures, in a system message, at least one of a preamble resource, a time domain resource, and a frequency domain resource dedicated to the terminal device for updating the CAG information list.
A method for updating non-public network subscription information, characterized in that the method comprises:

The second access network device receives a fourth message sent by the first access network device, where the fourth message is used to request the context of the terminal device;

The second access network device sends a fifth message to the first access network device, where the fifth message includes a first closed access group CAG information list and a first indication, and the first CAG information list is After the CAG information list of the terminal device is updated, the first indication is used to indicate that the CAG information list of the terminal device is updated.
The method according to claim 9, wherein the method further comprises:

The second access network device sends a sixth message to the first access network device, where the sixth message is used to instruct the first access network device to send a second message, and the sixth message includes the first Two cause values, where the second cause value is used to indicate that the CAG information list of the terminal device is updated.
A method for updating non-public network subscription information, characterized in that the method comprises:

The terminal device sends a radio resource control RRC recovery request message to the first access network device;

The terminal device receives a first message from the first access network device, where the first message is an RRC reject message or an RRC release message; the first message includes a first closed access group CAG information list, The first CAG information list is the updated CAG information list of the terminal device.
The method according to claim 11, wherein the first message further includes a first cause value, and the first cause value is used to instruct the terminal device to update the CAG information list.
The method according to claim 11 or 12, wherein the method further comprises:

The terminal device receives a second message sent by the first access network device, where the second message is used to instruct the terminal device to send the RRC recovery request message to the first access network device, the The second message includes a second cause value, where the second cause value is used to indicate that the CAG information list of the terminal device is updated;

The RRC recovery request message includes the second cause value.
A method for updating non-public network subscription information, characterized in that the method comprises:

The first access network device receives a radio resource control RRC recovery request message sent by the terminal device;

The first access network device sends an RRC recovery message to the terminal device, where the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting non-access stratum NAS signaling and/or or business data.
A method for updating non-public network subscription information, characterized in that the method comprises:

The terminal device sends a radio resource control RRC recovery request message to the first access network device;

The terminal device receives an RRC recovery message sent by the first access network device, where the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting non-access stratum NAS signaling and / or business data.
A communication device, characterized in that the communication device comprises:

a receiving unit, configured to receive a radio resource control RRC recovery request message sent by the terminal device;

a sending unit, configured to send a first message to the terminal device, where the first message includes a first closed access group CAG information list, where the first CAG information list is the updated CAG information of the terminal device list, the first message is an RRC reject message or an RRC release message.
The communication apparatus according to claim 16, wherein the first message further includes a first cause value, and the first cause value is used to instruct the terminal device to update the CAG information list.
The communication apparatus according to claim 16 or 17, wherein the sending unit is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to send the first message to the terminal device. An access network device sends the RRC recovery request message, the second message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated; the RRC recovery request message includes the second cause value.
The communication apparatus according to claim 16 or 17, wherein the receiving unit is further configured to receive a third message sent by a core network device, where the third message includes the first CAG information list;

The communication apparatus further includes a processing unit configured to set a first identifier, where the first identifier is used to indicate that the CAG information list of the terminal device is not updated.
The communication apparatus according to claim 19, wherein after sending the first message to the terminal device, the processing unit is further configured to delete the first identifier.
The communication apparatus according to claim 16 or 17, wherein the sending unit is further configured to send a fourth message to the second access network device, where the fourth message is used to request the context of the terminal device ;

The receiving unit is further configured to receive a fifth message sent by the second access network device, where the fifth message includes the first CAG information list and a first indication, where the first indication is used to indicate the The CAG information list of the terminal equipment is updated.
The communication apparatus according to claim 21, wherein the receiving unit is further configured to receive a sixth message sent by the second access network device, wherein the sixth message includes a second cause value, and the The second cause value is used to indicate that the CAG information list of the terminal device is updated;

The sending unit is further configured to send a second message to the terminal device, where the second message is used to instruct the terminal device to send the RRC recovery request message to the first access network device, the first The second message includes the second cause value; the RRC recovery request message includes the second cause value.
The communication apparatus according to any one of claims 16 to 22, wherein the processing unit is further configured to configure, in a system message, a preamble resource and a time domain resource dedicated to updating the CAG information list by the terminal device and at least one of frequency domain resources.
A communication device, characterized in that the communication device comprises:

a receiving unit, configured to receive a fourth message sent by the first access network device, where the fourth message is used to request the context of the terminal device;

a sending unit, configured to send a fifth message to the first access network device, where the fifth message includes a first closed access group CAG information list and a first indication, where the first indication is used to indicate the terminal The CAG information list of the device is updated.
The communication apparatus according to claim 24, wherein the sending unit is further configured to send a sixth message to the first access network device, where the sixth message is used to indicate the first access The network device sends a second message, where the sixth message includes a second cause value, where the second cause value is used to instruct the terminal device to update the CAG information list.
A communication device, characterized in that the communication device comprises:

a sending unit, configured to send a radio resource control RRC recovery request message to the first access network device;

a receiving unit, configured to receive a first message from the first access network device, where the first message is an RRC rejection message or an RRC release message; the first message includes a first closed access group CAG information list , wherein the first CAG information list is the updated CAG information list of the terminal device.
The communication apparatus according to claim 26, wherein the receiving unit is further configured to receive a second message sent by the first access network device, where the second message is used to instruct the terminal device to send The first access network device sends the RRC recovery request message, the second message includes a second cause value, and the second cause value is used to indicate that the CAG information list of the terminal device is updated; the RRC recovery The request message includes the second cause value.
A communication device, characterized in that the communication device comprises:

a receiving unit, configured to receive a radio resource control RRC recovery request message sent by the terminal device;

A sending unit, configured to send an RRC recovery message to the terminal device, where the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting non-access stratum NAS signaling and/or service data .
A communication device, characterized in that the communication device comprises:

a sending unit, configured to send a radio resource control RRC recovery request message to the first access network device;

a receiving unit, configured to receive an RRC recovery message sent by the first access network device, where the RRC recovery message includes a second indication, where the second indication is used to restrict the terminal device from transmitting non-access stratum NAS signaling and/or business data.
A communication device, characterized in that the communication device includes a processor and a transceiver, and the processor and the transceiver are used to support the communication device to perform the non-public method according to any one of claims 1-15. A method for updating network subscription information.