CN116349345A

CN116349345A - Non-public network subscription information updating method and device

Info

Publication number: CN116349345A
Application number: CN202080106833.XA
Authority: CN
Inventors: 谭佳瑶; 强鹂; 吴烨丹; 郑黎丽; 常俊仁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2023-06-27
Also published as: WO2022104740A1

Abstract

The embodiment of the application discloses a method and a device for updating non-public network subscription information, wherein the method comprises the following steps: after receiving the RRC recovery request message of the terminal device, the access network device may send an RRC reject message or an RRC release message to the terminal device, where the RRC reject message or the RRC release message includes new subscription information; alternatively, the access network device may send an RRC restoration message to the terminal device, where the RRC restoration message carries indication information limiting transmission of non-access stratum (NAS) signaling and/or service data by the terminal device. By the method, the subscription information of the terminal equipment is updated, so that the terminal equipment can update the subscription information through the access network equipment in time when the terminal equipment cannot pass the verification of the access network equipment.

Description

Non-public network subscription information updating method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for updating subscription information of a non-public network.

Background

Public network integrated non-public network (PNI-NPN) is a non-public network (NPN) implemented in dependence of a public land mobile network (public land mobile network, PLMN). The non-public network refers to a network which is opened for a specific user, and can provide NPN service for the user through the NPN cell only in a specific area (such as an industrial park, a school and the like), and the user can access the NPN cell through terminal equipment (such as NPN terminal equipment) supporting the NPN service. Subscription information, i.e. user admission information signed by the terminal device and an operator or other company building a non-public network, is typically configured in the terminal device supporting NPN services. After signing, the terminal device can access the corresponding network according to the network identifier allowed to be accessed in the signing information, and the network resource is used. For example, for a terminal device supporting PNI-NPN services, subscription information includes a closed access group (closed access group, CAG) list of allowed accesses, an indication of allowed access only via CAG, and so on.

When the subscription information (e.g., the above-mentioned CAG list allowing access) of the terminal device changes (or is called update), the access management function (access and mobility management function, AMF) initiates a User Equipment (UE) configuration update (UE configuration update, UCU) procedure to notify the terminal device of the updated subscription information. For a terminal device in an inactive state (inactive), when triggering a UCU, the AMF sends a downlink non-access layer transmission message to a source base station of the terminal device, where the downlink non-access layer transmission message carries a non-access layer-protocol data unit (NAS-PDU) and a mobility restriction list (mobility restriction list, MRL), the NAS-PDU is sent to the terminal device by the AMF, the source base station sends the NAS-PDU to the terminal device after receiving the NAS-PDU, and the MRL is sent to the source base station by the AMF. The NAS-PDU and the MRL both carry the updated subscription information of the terminal equipment. 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 device in the inactive state, it is necessary to re-access the NPN cell to receive updated subscription information, i.e. the terminal device is to perform a radio resource control (radio resource control, RRC) recovery procedure. When the NPN terminal device executes the RRC recovery procedure, if the access is the source base station, the source base station may have a situation that the updated subscription information of the terminal device does not match with NPN information supported by the source base station because the subscription information of the corresponding terminal device has been updated according to the MRL, so that the source base station may refuse the access of the terminal device, and in this way, the terminal device cannot receive the updated subscription information by accessing the cell of the source base station, so that the subscription information of the terminal device cannot be updated in time.

Disclosure of Invention

The embodiment of the application provides a method and a device for updating subscription information of a non-public network, which are used for solving the problem that terminal equipment cannot update subscription information in time because the terminal equipment cannot pass through the verification of access network equipment.

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

in a first aspect of the embodiments of the present application, a method for updating subscription information of a non-public network is provided, where the method may include: the method comprises the steps that first access network equipment receives RRC recovery request information sent by terminal equipment; the first access network equipment sends a first message to the terminal equipment, wherein the first message comprises a first CAG information list, the first CAG information list is a CAG information list of the updated terminal equipment, 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 restoration request message sent by the terminal device, the first access network device may send a first message to the terminal device, so as to reject or release access between the terminal device and the first access network device, and carry the updated CAG information list of the terminal device in the first message, so that the terminal device can update the CAG information list according to the first message. The terminal equipment which cannot pass through the verification of the first access network equipment can also pass through the first access network equipment to update the CAG information list in time under the condition of not entering a connection state.

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

Based on the possible design, the terminal equipment can conveniently update the CAG information list according to the received determination of the first cause value, so that the CAG information list is updated, and the system design is simplified.

In one possible design, the method further comprises: the first access network equipment sends a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to send an RRC recovery request message to the first access network equipment, the second message comprises a second cause value, and the second cause value is used for indicating the CAG information list of the terminal equipment to update; the RRC recovery request message includes a second cause value.

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

In one possible design, the method further comprises: the first access network equipment receives a third message sent by the core network equipment, wherein the third message comprises a 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.

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 may determine, according to the set first identifier, that the CAG information list of the terminal device has not been updated, so as to send a first message to the terminal device, so that the terminal device updates the CAG information list in time.

In one possible design, 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.

Based on the possible design, the first identifier is deleted after the first message is sent, so that the situation that the first access network equipment sends the first message again to the terminal equipment when the subsequent terminal equipment sends the RRC recovery request to the first access network equipment, so that the terminal equipment repeatedly updates the CAG information list can be avoided. Wherein the first access network device may delete the first identity after determining that the terminal device has received the first message.

In one possible design, the method further comprises: the first access network equipment sends a fourth message to the second access network equipment, wherein the fourth message is used for requesting the context of the terminal equipment; the first access network device receives a fifth message sent by the second access network device, wherein the fifth message comprises a first CAG information list and a first indication, and the first indication is used for indicating the CAG information list of the terminal device to update.

Based on this possible design, when there is no context of the terminal device (e.g., updated CAG information of the terminal device) in the first access network device that receives the RRC resume request message (e.g., the first access network device may be another access network device 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 of the terminal device (or the first CAG information list) to the first access network device through the fifth message after receiving the fourth message requesting the context, so that the first access network device may conveniently 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 one possible design, the method further comprises: the first access network equipment receives a sixth message sent by the second access network equipment, wherein the sixth message comprises a second cause value, and the second cause value is used for indicating the CAG information list of the terminal equipment to update; the first access network equipment sends a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to send an RRC recovery request message to the first access network equipment, and the second message comprises a second cause value; the RRC recovery request message includes a second cause value.

In this way, the first access network device can conveniently determine that the terminal device does not update the CAG information list according to the second cause value in the received RRC restoration request message, and then send the first message to the terminal device so that the terminal device can update the CAG information list.

In one possible design, the method further comprises: the first access network device configures 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 the system message.

Thus, the terminal equipment receives the configured resources which are specially used for updating the CAG information list through the system message, and the system design is simplified.

In a second aspect, a communication apparatus is provided, which may be the first access network device or a chip or a system on chip in the first access network device. The communication device may implement the functions performed by the first access network device in the first aspect or the possible designs of the first aspect, where the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a processing unit, a transmitting unit, etc.

The receiving unit can be used for receiving the RRC restoration request message sent by the terminal equipment;

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

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

In one 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 used for setting a first identifier, and the first identifier is used for indicating that the CAG information list of the terminal equipment is not updated.

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

In one 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 a 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 a first CAG information list and a first indication, and the first indication is used to indicate that the CAG information list of the terminal device is updated.

In one 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 indicate a CAG information list update of the terminal device; 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 an RRC restoration request message to the first access network device, and the second message includes a second cause value; the RRC recovery request message includes a second cause value.

In one possible design, the processing unit is further configured to configure 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 the system message.

In a third aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the communication device, cause the communication device to perform the non-public network subscription information updating method according to the first aspect or any one of the possible designs of the first aspect.

In a fourth aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the non-public network subscription information updating method of the first aspect or any one of the possible designs of the aspects.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the non-public network subscription information updating method of the first aspect or any one of the possible designs of the first aspect.

In a sixth aspect, a communications device is provided, which may be a system on a chip, which may include a processor, a transceiver for supporting the communications device to implement the functionality referred to in the above-mentioned first aspect or any of the possible designs of the first aspect. In one possible design, the chip system further includes a memory for holding program instructions and data necessary for the communication device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects caused by any design manner of the second aspect to the sixth aspect may be referred to the technical effects caused by the above first aspect or any possible design of the first aspect, and will not be described in detail.

In a seventh aspect, there is provided a method for updating subscription information of a non-public network, the method may include: the second access network equipment receives a fourth message sent by the first access network equipment, wherein the fourth message is used for requesting the context of the terminal equipment; the second access network equipment sends a fifth message to the first access network equipment, wherein the fifth message comprises a first CAG information list and a first indication, the first CAG information list is a CAG information list of the updated terminal equipment, and the first indication is used for indicating the updating of the CAG information list of the terminal equipment.

Based on the method of the seventh aspect, when there is no context of the terminal device (e.g., updated CAG information of the terminal device) in the first access network device that receives the RRC recovery request message (e.g., the first access network device may be another access network device 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 of the terminal device (or the first CAG information list) to the first access network device through the fifth message after receiving the fourth message requesting the context, so that the first access network device may conveniently 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 indication, and further 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 one possible design, 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 a second cause value, where the second cause value is used to instruct the terminal device to update the CAG information list.

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

In an eighth aspect, a communication apparatus is provided, which may be the second access network device or a chip or a system on chip in the second access network device. The communication device may implement the function performed by the second access network device in the seventh aspect or the possible designs of the seventh aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a transmitting unit, etc.

The receiving unit may be configured to receive a fourth message sent by the first access network device, where the fourth message is used to request a 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 indicate that the CAG information list of the terminal device is updated.

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

In a ninth aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the communication device, cause the communication device to perform the non-public network subscription information updating method according to any one of the above-described seventh aspect or any one of the above-described possible designs of the seventh aspect.

In a tenth aspect, there is provided a computer readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the non-public network subscription information updating method of the seventh aspect or any one of the possible designs of the seventh aspect.

In an eleventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of updating non-public network subscription information of the seventh aspect or any one of the possible designs of the seventh aspect.

In a twelfth aspect, a communications device is provided, which may be a system on a chip, which may include a processor, a transceiver, and a processor for supporting the communications device to implement the functions involved in the seventh aspect or any one of the possible designs of the seventh aspect. In one possible design, the chip system further includes a memory for holding program instructions and data necessary for the communication device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects of any one of the designs of the eighth aspect to the twelfth aspect may be referred to the technical effects of any one of the possible designs of the seventh aspect or the seventh aspect, and will not be described in detail.

In a thirteenth aspect, there is also provided a method for updating non-public network subscription information, the method may include: the terminal equipment sends an RRC recovery request message to the first access network equipment; the terminal equipment receives a first message from first access network equipment, wherein the first message is an RRC reject message or an RRC release message; the first message comprises a first CAG information list, wherein the first CAG information list is a CAG information list of the updated terminal equipment.

Based on the method of the thirteenth aspect, when the terminal device sends an RRC restoration request message to the first access network device, the first access network device may reject or release access of the terminal device through the first message, and carry the updated CAG information list of the terminal device in the first message. The terminal device can update its CAG information list upon receiving the first message. Therefore, the terminal equipment can update the CAG information without entering a connection state, and the CAG information can be updated in time when the terminal equipment cannot pass the verification of the first access network equipment.

Based on the possible design, the terminal device can determine that the CAG information list needs to be updated according to the first cause value, so that the CAG information list is updated, and the system design is simplified.

In one possible design, the method further comprises: the terminal equipment receives a second message sent by the first access network equipment, wherein the second message is used for indicating the terminal equipment to send an RRC recovery request message to the first access network equipment, the second message comprises a second cause value, and the second cause value is used for indicating the CAG information list of the terminal equipment to update; the RRC recovery request message includes a second cause value.

In a fourteenth aspect, a communication device is provided, which may be a terminal device or a chip or a system on chip in a terminal device. The communication device may implement the functions performed by the terminal device in the thirteenth aspect or in the possible designs of the thirteenth aspect, where the functions may be implemented by hardware, or may be implemented by hardware to execute corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a transmitting unit, etc.

A sending unit, configured to send an RRC restoration request message to a 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 reject message or an RRC release message; the first message comprises a first CAG information list, wherein the first CAG information list is a CAG information list of the updated terminal equipment.

In one 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 restoration request message to the first access network device, and the second message includes a second cause value, where the second cause value is used to instruct the terminal device to update a CAG information list; the RRC recovery request message includes a second cause value.

In a fifteenth aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the communication device, cause the communication device to perform the non-public network subscription information updating method as set forth in the thirteenth aspect or any one of the possible designs of the thirteenth aspect.

In a sixteenth aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the above thirteenth aspect or any one of the possible designs of the non-public network subscription information updating method of the above thirteenth aspect.

In a seventeenth aspect, there is provided a computer program product comprising instructions which, when run on a computer, enable the computer to perform the non-public network subscription information updating method of the thirteenth aspect or any one of the possible designs of the thirteenth aspect.

In an eighteenth aspect, a communication device is provided, which may be a chip system, which may comprise a processor, a transceiver for supporting the communication device for carrying out the functions involved in the above-mentioned thirteenth aspect or any of the possible designs of the thirteenth aspect. In one possible design, the chip system further includes a memory for holding program instructions and data necessary for the communication device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects brought by any one of the designs of the fourteenth aspect to the eighteenth aspect may be referred to the technical effects brought by any one of the foregoing thirteenth aspect or any one of the possible designs of the thirteenth aspect, and will not be described in detail.

In a nineteenth aspect, there is further provided a method for updating non-public network subscription information, where the method may include: the method comprises the steps that first access network equipment receives a Radio Resource Control (RRC) recovery request message sent by terminal equipment; the first access network device sends an RRC restoration message to the terminal device, the RRC restoration message including a second indication, the second indication being 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 restoration request message, the first access network device may instruct, through a second instruction, the terminal device to connect with the first access network device under the condition of limiting transmission of NAS signaling and/or service data, so that the terminal device may acquire, from the first access network device, a NAS-PDU message including the updated CAG information list sent by the core network device, and update the CAG information list. In this way, the terminal device can update the CAG information list by establishing a transmission-limited temporary connection with the first access network device to receive NAS-PDUs even if it cannot pass the authentication of the first access network device.

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

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

In a twentieth aspect, a communication apparatus is provided, which may be a first access network device or a chip or a system on a chip in a first access network device. The communication device may implement the function performed by the first access network device in the nineteenth aspect or the possible designs of the nineteenth aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a transmitting unit, etc.

A receiving unit, configured to receive an RRC restoration request message sent by a terminal device;

and the sending unit can be used for sending an RRC recovery message to the terminal equipment, wherein the RRC recovery message comprises a second instruction, and the second instruction is used for limiting the terminal equipment to transmit NAS signaling and/or service data.

In a specific implementation manner of the communication apparatus, reference may be made to a behavior function of the first access network device in the non-public network subscription information updating method provided by the nineteenth aspect or any one of the possible designs of the nineteenth aspect, and any one of the possible designs of the nineteenth aspect or the nineteenth aspect may be correspondingly implemented by a receiving unit and a transmitting unit that are included in the communication apparatus, which is not described herein again.

In a twenty-first aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the communication device, cause the communication device to perform the non-public network subscription information updating method as described in the nineteenth aspect or any one of the possible designs of the nineteenth aspect.

In a twenty-second aspect, there is provided a computer-readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the non-public network subscription information updating method of the nineteenth aspect or any one of the possible designs of the nineteenth aspect.

In a twenty-third aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform the above nineteenth aspect or any one of the above nineteenth aspects of possible designs of the non-public network subscription information updating method.

In a twenty-fourth aspect, a communications device is provided, which may be a system on a chip, which may include a processor, a transceiver, and means for supporting the communications device to implement the functionality referred to in the nineteenth aspect or any one of the possible designs of the nineteenth aspect. In one possible design, the chip system further includes a memory for holding program instructions and data necessary for the communication device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects of any one of the design manners of the twentieth aspect to the twenty-fourth aspect may be referred to the technical effects of the nineteenth aspect or any one of the possible designs of the nineteenth aspect, and are not repeated.

In a twenty-fifth aspect, there is also provided a method for updating non-public network subscription information, the method may include: the terminal equipment sends an RRC recovery request message to the first access network equipment; the terminal device receives an RRC restoration message sent by the first access network device, wherein the RRC restoration message comprises a second instruction, and the second instruction is used for limiting the terminal device to transmit NAS signaling and/or service data.

Based on the method of the twenty-fifth aspect, after the first access network device receives the RRC restoration request message, the first access network device may instruct, through a second instruction, the terminal device to connect with the first access network device under the condition of limiting transmission of NAS signaling and/or service data, so that the terminal device may acquire, from the first access network device, a NAS-PDU message including the updated CAG information list sent by the core network device, and update the CAG information list. In this way, the terminal device can update the CAG information list by establishing a transmission-limited temporary connection with the first access network device to receive NAS-PDUs even if it cannot pass the authentication of the first access network device.

In one possible design, the method further comprises: the terminal equipment sends an RRC recovery completion message to the first access network equipment; the terminal equipment receives NAS-PDU from the first access network equipment, wherein the NAS-PDU is used for updating the CAG information list of the terminal equipment by the terminal equipment.

In one possible design, the method further comprises: and the terminal equipment receives the RRC release message sent by the first access network equipment.

In a twenty-sixth aspect, a communication apparatus is provided, which may be the first access network device or a chip or a system on chip in the first access network device. The communication device may implement the function performed by the first access network device in the twenty-fifth aspect or the design possible in the twenty-fifth aspect, where the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device may include: a receiving unit, a transmitting unit, etc.

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

the receiving unit may be configured to receive an RRC restoration message sent by the first access network device, where the RRC restoration message includes a second indication, and the second indication is used to limit transmission of NAS signaling and/or service data by the terminal device.

In a specific implementation manner of the communication apparatus, reference may be made to the behavior function of the first access network device in the non-public network subscription information updating method provided by the twenty-fifth aspect or any one of the possible designs of the twenty-fifth aspect, and any one of the possible designs of the twenty-fifth aspect or any one of the possible designs of the twenty-fifth aspect may be correspondingly implemented by a receiving unit and a transmitting unit included in the communication apparatus, which is not described herein again.

In a twenty-seventh aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the communication device, cause the communication device to perform the non-public network subscription information updating method as described in the twenty-fifth aspect or any one of the possible designs of the twenty-fifth aspect.

In a twenty-eighth aspect, a computer readable storage medium is provided, where instructions are stored, which when executed on a computer, enable the computer to perform the non-public network subscription information updating method according to the twenty-fifth aspect or any one of the possible designs of the twenty-fifth aspect.

In a twenty-ninth aspect, a computer program product is provided comprising instructions which, when run on a computer, enable the computer to perform the above twenty-fifth aspect or any one of the above twenty-fifth aspects of the possible designs of the non-public network subscription information updating method.

In a thirty-fifth aspect, a communications device is provided, which may be a system-on-chip, which may include a processor, a transceiver, and means for supporting the communications device to carry out the functions involved in any one of the possible designs of the twenty-fifth or twenty-fifth aspects described above. In one possible design, the chip system further includes a memory for holding program instructions and data necessary for the communication device. The chip system may be formed of a chip or may include a chip and other discrete devices.

The technical effects of any one of the design manners of the twenty-sixth aspect to the thirty-fifth aspect may be referred to the technical effects of any one of the foregoing twenty-fifth aspect or any one of the possible designs of the twenty-fifth aspect, and will not be described in detail.

In a thirty-first aspect, a communication system is provided, which may include the communication device or chip system according to any one of the second to sixth aspects, the communication device or chip system according to any one of the eighth to twelfth aspects, and the communication device or chip system according to any one of the fourteenth to eighteenth aspects; or alternatively, the process may be performed,

the communication system may comprise a communication device or chip system according to any one of the twentieth to twenty-fourth aspects, and a communication device or chip system according to any one of the twenty-sixth to thirty-fourth aspects.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flow chart of a method for updating non-public network subscription information according to an embodiment of the present application;

fig. 3 is a flow chart of another method for updating non-public network subscription information according to an embodiment of the present application;

Fig. 4 is a flow chart of another method for updating non-public network subscription information according to an embodiment of the present application;

fig. 5 is a flow chart of another method for updating non-public network subscription information according to an embodiment of the present application;

fig. 6 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application;

fig. 7 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application;

fig. 8 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application;

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

fig. 10 is a schematic diagram of another communication device according to an embodiment of the present disclosure;

fig. 11 is a schematic diagram of another communication device according to an embodiment of the present disclosure;

fig. 12 is a schematic diagram of another communication device according to an embodiment of the present application.

Detailed Description

In a public network integrated non-public network, a user can access a non-public network cell through a terminal device supporting a non-public network service. In terminal devices supporting non-public network services, subscription information is typically configured. The subscription information may be user admission information signed by the terminal device and the operator or other company building the non-public network. For example, the subscription information may include a closed access group list (Allowed CAG list) allowing the terminal device to access, an indication (CAG-only indication) allowing only the terminal device to access through the closed access group, and the like. After signing, the terminal device can access the corresponding network according to the network identifier allowed to access in the configured signing information. Taking the example that the subscription information includes a closed access group list allowing the terminal device to access, the terminal device may access the access network device supporting the closed access group corresponding to the closed access group identifier according to the closed access group identifier in the closed access group list allowing the terminal device to access. The access network device may be configured with a closed access group list supported by the access network device, or may acquire a closed access group list that allows the access of the terminal device from the core network device or the terminal device. When the terminal equipment needs to be accessed to the access network equipment, the terminal equipment can send an access request to the access network equipment, and the access network equipment can verify the terminal equipment according to the closed access group list supported by the access network equipment and the closed access group list allowing the terminal equipment to be accessed after receiving the access request. For example, when the closed access group list supported by the access network device and the closed access group list allowed to be accessed by the terminal device have the same closed access group identifier (such as the first closed access group identifier), the access network device verifies the terminal device. And the terminal equipment can be connected with the access network equipment through the first closed access group corresponding to the first closed access group identifier. Similarly, when the closed access group list supported by the access network device and the closed access group list allowed to be accessed by the terminal device do not have the same closed access group identifier, the access network device does not pass the verification of the terminal device. The access network device may deny access to the terminal device.

When the subscription information of the terminal equipment, such as a closed access group list allowing the terminal equipment to access in the subscription information, is changed, the access management function network element initiates configuration update of the user equipment so as to inform the updated subscription information of the terminal equipment. For example, the access management function network element sends a downlink non-access stratum transmission message to the access network device, the message carries NAS-PDU containing the closed access group list which allows the terminal device to access after the terminal device is updated, and the access network device transmits the NAS-PDU to the terminal device through downlink information transmission (DL Information Transfer). Wherein, for the terminal device in the non-connection state (such as non-activated state), in order to send the NAS-PDU to the terminal device, the access network device sends a paging message to the terminal device in the notification area of the access network. After the terminal equipment monitors the paging message, the terminal equipment checks whether the paging message contains the self identifier or not, and if so, the terminal equipment can send an RRC recovery request message to the access network equipment to recover the connection state. After the terminal device resumes the connection state, the access network device may send the NAS-PDU to the terminal device, so that the terminal device updates the subscription information. And the access management function network element also sends a mobility limit list to the access network device, wherein the mobility limit list comprises a closed access group list which is updated by the terminal device and allows the terminal device to access, so as to update subscription information (such as a closed access group list which allows the terminal device to access) of the corresponding terminal device stored in the access network device.

It can be seen that if the updated closed access group list of the terminal device, which allows the terminal device to access, and the closed access group list supported by the access network device do not have the same closed access group identifier, the terminal device cannot recover the connection state because the terminal device cannot pass the verification of the access network device. 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) that allows the terminal device to access in time.

In order to solve the above problems, the present application provides a method for updating subscription information of a non-public network, which may include: after the access network device (such as the first access network device) receives the RRC recovery request message of the terminal device, the access network device determines that the terminal device has not updated subscription information (such as a closed access group list allowing the terminal device to access), and when the access verification of the access network device to the terminal device according to the updated subscription information (or called new subscription information) fails, the access network device may send an RRC rejection message or an RRC release message to the terminal device, where the RRC rejection message or the RRC release message includes the new subscription information, so that the terminal device updates the subscription information by receiving the RRC rejection message or the RRC release message; or, the access network device may send an RRC restoration message to the terminal device, where the RRC restoration message carries indication information that limits transmission of non-access stratum (NAS) signaling and/or service data by the terminal device, so that the terminal device restores a connection state under a condition that transmission of NAS signaling and/or service data is limited, and the terminal device can receive NAS-PDUs including new subscription information from the access network device, so that the terminal device updates the subscription information.

By the method, the subscription information of the terminal equipment is updated, so that the terminal equipment can update the subscription information through the access network equipment in time when the terminal equipment cannot pass the verification of the access network equipment.

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

In the description of the present application, the words "first", "second", and the like are merely for distinguishing the descriptions, and are not intended to limit a particular feature. In the description of the embodiment of the present application, "and/or" describing the association relationship of the association object indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. Reference to at least one in this application refers to one or more; plural means two or more.

The method for updating the subscription information of the non-public network provided by the embodiment of the application can be applied to various communication systems, for example: the long term evolution (long term evolution, LTE) system, fifth generation (5th generation,5G) mobile communication system, wireless fidelity (wireless fidelity, wiFi) system, future communication system, or system where multiple communication systems are integrated, etc., embodiments of the present application are not limited. Wherein 5G may also be referred to as New Radio (NR).

The method for updating the non-public network subscription information provided by the embodiment of the application can be applied to various communication scenes, for example, can be applied to one or more of the following communication scenes: enhanced mobile broadband (enhanced mobile broadband, eMBB), ultra-reliable low latency communications (ultra reliable low latency communication, URLLC), machine type communications (machine type communication, MTC), large-scale machine type communications (massive machine type communications, mctc), device-to-device (D2D), vehicle-to-vehicle (vehicle to everything, V2X), vehicle-to-vehicle (vehicle to vehicle, V2V), and internet of things (internet of things, ioT), among others.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system may include: access network device 110, and 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 may provide radio resource management, quality of service management, data encryption and compression, and other functional services for the terminal device.

Communication between the access network device 110 and the core network device 120 may be performed through a Next Generation (NG) interface, and communication between different access network devices 110 may be performed through an Xn interface.

Alternatively, the terminal device may be a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. In particular, the terminal device 110 may be a mobile phone ("cellular" phone), handset, computer, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), laptop computer, handheld communication device, handheld computing device, satellite radio device, wireless modem card, television Set Top Box (STB), customer premises equipment (customer premise equipment, CPE), wearable device (e.g., smart watch, smart bracelet, pedometer, etc.), vehicle-mounted device (e.g., car, bicycle, electric car, airplane, boat, train, high-speed rail, etc.), virtual reality (virtual reality, VR) devices, augmented reality (augmented reality, AR) devices, wireless terminals in industrial control (industrial control), smart home devices (e.g., refrigerators, televisions, air conditioners, electricity meters, etc.), smart robots, plant equipment, wireless terminals in self driving (self driving), wireless terminals in teleoperation (remote medical surgery), wireless terminals in smart grid (smart grid), wireless terminals in transportation security (transportation safety), wireless terminals in smart city (smart city), or wireless terminals in smart home (smart home), flying devices (e.g., smart robots, hot air balloons, drones, airplanes), other devices for communicating on a wireless system, etc., the specific form of the terminal device is not limited in the present application.

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

Wherein the gNB can provide the terminal device with protocols and functions of a control plane and/or a user plane of a New Radio (NR) and access to the 5G core network (5th generation core,5GC). The ng-eNB may provide the control plane and/or user plane protocols and functions of the evolved universal terrestrial radio access (evolved universal terrestrial radio access, E-UTRA) for the terminal device and access to the 5GC. The CU mainly includes RRC layer of the gNB, service data adaptation protocol (service data adaptation protocol, SDAP) layer and packet data convergence protocol (packet data convergence protocol, PDCP) layer, or RRC layer and PDCP layer of the ng-eNB. The DU mainly includes a radio link control (radio link control, RLC) layer, a medium access control (medium access control, MAC) layer, and a physical layer of the gNB or ng-eNB. The CU-CP mainly includes an RRC layer in the gNB-CU or the ng-eNB-CU, and a 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 session management functions (session management function, SMF), AMF, network data analysis functions (network data analytics function, NWDAF), user plane functions (user plane function, UPF), and the like.

The SMF is mainly responsible for session management (such as session establishment, session modification and session release), IP address allocation and management of the UE, selection and control of user plane functions, termination of session management part in NAS message, etc. The AMF is mainly responsible for access control, mobility management, attach and detach, gateway selection, etc. NWDAF is mainly responsible for data collection, analysis, etc. The UPF is mainly responsible for functions such as message routing and forwarding.

Note that the foregoing SMF, AMF, NWDAF, UPF and the like are merely exemplary illustrations of the core network device 120, and the present application is not limited thereto.

It can be understood that the foregoing communication system shown in fig. 1 is merely for more clearly describing the technical solution of the embodiments of the present application, and does not constitute a limitation on the technical solution provided by the embodiments of the present application. For example, other devices may be included in the communication system, such as: a network control device. The network control device may be an operation administration 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, as one of ordinary skill in the art can know, with the evolution of the network architecture and the appearance of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

Taking the update of a closed access group list (or CAG information list called terminal device) in subscription information, which allows the terminal device to access, as an example. Wherein the CAG information list of the terminal device may comprise an identification of the closed access group to which the terminal device is allowed to access. Fig. 2 is a schematic flow chart of a method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 2, the non-public network subscription information updating method may include the following S201 to S204.

S201, the access network device (such as the first access network device) sends a second message to the terminal device, wherein the second message indicates the terminal device to send the RRC recovery request message to the access network device, and 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, so as to page the terminal device, and after the terminal device receives the paging message, send an RRC restoration request message to the access network device.

The access network device may be a last serving access network device (or referred to as a last serving base station) of the terminal device when the terminal device is switched from the connected state to the inactive state. The terminal device may transition from the connected state to the inactive state through an RRC release procedure. The transmission parameters of the terminal equipment are reserved in the final service access network equipment, and the terminal equipment can carry out uplink transmission and/or downlink transmission with the final service access network equipment according to the transmission parameters reserved in the final service access network equipment. The access network device may also be other access network devices in the vicinity of 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 service access network device, the access network device may determine that the terminal device needs to update the CAG information list according to a message (such as a third message) that is received from the core network device (such as an AMF network element) and includes the updated CAG information list of the terminal device, so as to send the second message to the terminal device. The message sent by the core network device and containing the updated CAG information list of the terminal device may be a mobility restriction list (mobility restriction list, MRL) used by the core network device to update 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 second message to the terminal device according to a received message (such as a sixth message) sent by the last serving access network device and used to instruct the second message to be sent to the terminal device, where the sixth message may be, for example, a radio access network (radio access network, RAN) paging message. Wherein the last serving access network device may, after receiving a message from the core network device (e.g. the third message) send the second message by sending a RAN paging message to instruct access network devices near the last serving access network device to send the second message to the terminal device.

S202, the terminal equipment sends an RRC recovery request message to the access network equipment.

The terminal device receives the second message from the access network device, and the terminal device may send an RRC resume 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 in its own range, and the terminal device that monitors the paging message determines that the paging message includes its own identifier, and sends an RRC recovery request message to the access network device.

S203, the access network equipment sends a first message to the terminal equipment under the condition that the terminal equipment needs to update the CAG information list.

Wherein the first message may comprise an updated CAG information list (or referred to as a first CAG information list) of the terminal device. 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 embodiments, the first message may further include a cause value (such as a first cause value), where 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 description update". So that the subsequent terminal device can update the CAG information list according to the indication of the first cause value after receiving the first message.

The access network device may verify the terminal device when the access network device receives the RRC restoration request message sent by 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 (e.g., the identifier list of the CAG supported by the access network device). The access network device updates the configured subscription information according to the MRL sent by the core network device, so the CAG information list of the terminal device may be an updated CAG information list (i.e., a first CAG information list) of the terminal device. When the CAG information list of the terminal equipment and the CAG information list supported by the core network equipment do not have the same CAG identifier, the access network equipment does not pass the verification of the terminal equipment. When the CAG information list of the terminal equipment and the CAG information list supported by the core network equipment have the same CAG identifier, the access equipment passes the verification of the terminal equipment.

In some possible embodiments, in case the access network device does not verify the terminal device, the access network device may reject or release the access of the terminal device by means of the sent first message. And carrying the updated CAG information list of the terminal equipment in the first message so that the terminal equipment updates the CAG information list according to the first message.

In other possible embodiments, in the case that the access network device verifies the terminal device, although the access network device may allow the terminal device to access, because the terminal device needs to update the CAG information list (or does not update the CAG information list yet), the access network device may reject or release the access of the terminal device through the sent first message, and 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. Therefore, the terminal equipment can directly update the CAG information list under the condition of not entering a connection state, and the updating efficiency of the CAG information list is improved.

In the 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. By way of example, the access network device may determine that the terminal device needs to update the CAG information list in several possible ways.

In a possible manner, the access network device is a last service access network device, which may receive a message (such as a third message) from a core network device (such as an AMF network element), where the message includes an updated CAG information list of the terminal device. The access network device may update the subscription information of the terminal device stored by the access network device according to the third message (for example, store the CAG information list of the terminal device after updating), and may also store the subscription information of the terminal device before updating (for example, store the CAG information list of the terminal device before updating), that is, the access network device stores the subscription information of the two sets of terminal devices. In the case that the access network device can verify the terminal device according to the CAG information list of the terminal device before updating, but cannot verify the terminal device according to the CAG information list of the terminal device after updating, the access network device can determine that the terminal device needs to update the CAG information list.

In another possible manner, the access network device is a last service access network device, which may receive a message (e.g. a third message) from a core network device (e.g. an AMF network element), where the message includes an updated CAG information list of the terminal device. The access network device can update the subscription information of the terminal device stored by the access network device according to the third message, namely, the access network device only stores the latest subscription information of the terminal device. The access network device may further configure an identifier (e.g., the first identifier) for indicating that the CAG information list of the terminal device is not updated, according to receiving the third message. And the access network equipment can determine that the terminal equipment needs to update the CAG information list according to the first identifier under the condition of receiving the RRC recovery request message sent by the terminal equipment.

In another possible manner, the access network device is a last service access network device, which may receive a message (e.g. a third message) from a core network device (e.g. an AMF network element), where the message includes an updated CAG information list of the terminal device. The access network device can update the subscription information of the terminal device stored by the access network device according to the third message. The access network device may then send a second message (e.g., a paging message) to the terminal device to instruct the terminal device to send an RRC resume request message thereto. The second message carries a cause value (such as a second cause value), and the second cause value may be used to indicate the CAG information list update of the terminal device. The second message carries the second cause value, so that the subsequent terminal device can also carry the second cause value in the RRC recovery request message sent according to the second message, and therefore, under the condition that the access network device receives the RRC recovery request message, the access network device can determine that the terminal device needs to update the CAG information list according to the indication of the second cause value.

In another possible way, the access network device is another access network device in the vicinity of the last serving access network device, which may receive a message (e.g., a 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, etc. The fifth message may include the updated CAG information list of the terminal device and a first indication that may be used to indicate an update of the CAG information list of the terminal device. In the case that 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 further send a message (e.g., a fourth message) for requesting a context request of the terminal device to the last serving access network device to request a context of the terminal device from the last serving access network device, which is not limited herein.

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

In some possible embodiments, after the terminal device updates the CAG information list, the terminal device may enter an idle state to select a suitable cell access according to the updated CAG information list of the terminal device.

In some possible embodiments, the access network device (such as the first access network device) may further configure at least one of a preamble resource, a time domain resource, and a frequency domain resource that is dedicated to updating the CAG information list by the terminal device in the system message, 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 a non-activated state and cannot be connected with the access network device through the verification of the access network device, the access network device can carry the updated CAG information list of the terminal device when sending an RRC reject message or an RRC release message to the terminal device, so as to send the updated CAG information list of the terminal device to the terminal device, so that the terminal device updates the CAG information list. The terminal equipment in the inactive state can also update the CAG information list in time.

In the following, with reference to fig. 3, the method shown in fig. 2 will be described in detail by taking a terminal device as a UE, an access network device as a last serving base station, an AMF network element as a core network device, and a terminal device in an inactive state, where the updated CAG information list (or called a first CAG information list) of the UE and the CAG information list (or called a second CAG information list) supported by the access network device do not have the same CAG identifier.

Fig. 3 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 3, the non-public network subscription information updating method may include the following S301 to S307.

S301, the AMF network element sends MRL to the final service base station, wherein the MRL comprises the updated CAG information list of the UE.

The MRL sent by the AMF network element to the last serving base station may be used for the last serving base station to update the subscription information of the terminal device stored in the last serving base station, for example, to update the CAG information list of the terminal device (e.g., UE) stored in the last serving base station. Therefore, the updated CAG information list of the UE is included in the MRL. And the final service base station can store the updated CAG information of the UE when receiving the MRL, so that the subsequent final service 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 receiving the MRL, the service base station stores the updated CAG information list of the UE in the MRL and stores the CAG information list of the UE before updating.

And S303, finally, the service base station sends a paging message to the UE.

The step S303 may refer to the description of step S201 in the method shown in fig. 2, which is not described herein.

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

After the UE monitors the paging message, the UE may check whether the paging message has a corresponding identifier, and if so, the UE may send an RRC resume request message to the last serving base station to request connection with the last serving base station.

And S305, finally, the service base station authenticates the UE.

After the last serving base station receives the RRC resume request message, the last serving base station may verify the UE to determine whether to allow the UE 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 last serving base station do not have the same CAG identifier (i.e. the last serving base station is not matched with the updated CAG information list of the UE or the UE verification is not passed), the last serving base station does not allow the UE to access; if the CAG information list before updating and the CAG information list supported by the last serving base station have the same CAG identifier (i.e., the last serving base station is adapted to the CAG information list before updating), the last serving base station may determine that the UE needs to update the CAG information list.

And S306, after the UE verification is not passed, the service base station finally sends an RRC reject message or an RRC release message to the UE.

And under the condition that the service base station determines that the UE needs to update the CAG information list, the updated CAG information list of the UE can be carried in the RRC reject message or the RRC release message.

Optionally, in the RRC reject message or the RRC release message, a 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 RRC release message.

The step S307 may refer to the step S204 in the method shown in fig. 2, which is not described herein.

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 that the UE needs to update the CAG information list according to the stored updated CAG information list of the UE and the pre-updated CAG information list, so that when the UE is not allowed to access, the updated CAG information list of the UE is carried in an RRC reject message or an RRC release message sent to the UE, so that the UE can update the CAG information list. Thus, the UE in the inactive state can update the CAG information list in time.

In the following, with reference to fig. 4, the method shown in fig. 2 will be described in detail by taking a terminal device as UE, an access network device as a last serving base station, a core network device as AMF network element, where the terminal device is in an inactive state, and the updated CAG information list (or called a first CAG information list) of the UE and the CAG information list (or called a second CAG information list) supported by the access network device do not have the same CAG identifier.

Fig. 4 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 4, the non-public network subscription information updating method may include the following S401 to S408.

S401, the AMF network element sends MRL to the last service base station, wherein the MRL comprises the updated CAG information list of the UE.

The MRL sent by the AMF network element to the last serving base station may be used for the last serving base station to update the subscription information of the terminal device stored in the last serving base station, for example, to update the CAG information list of the terminal device (e.g., UE) stored in the last serving base station. Therefore, the updated CAG information list of the UE is included in the MRL.

And S402, after receiving the MRL, the service base station updates the stored CAG information list of the UE into an updated CAG information list of the UE, and configures an identifier for indicating the updating of the CAG information list of the UE.

For example, the identification for indicating the CAG information list update of the UE may be the identification "subscription information is not updated to the UE".

And the final service base station can be convenient for the subsequent final service base station to determine that the UE needs to update the CAG information list according to the identifier by configuring the identifier for indicating the updating of the CAG information list of the UE.

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

The step S403 may refer to the description of step S201 in the method shown in fig. 2, which is not described herein.

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

The step S404 may refer to the description of step S304 in the method shown in fig. 3, which is not described herein.

And S405, finally, the service base station authenticates the UE.

After the last serving base station receives the RRC resume request message, the last serving base station may verify the UE to determine whether to allow the UE 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 last serving base station do not have the same CAG identifier (i.e. the last serving base station is not matched with the updated CAG information list of the UE or the UE verification is not passed), the last serving base station does not allow the UE to access; if the last serving base station is further configured with the identifier for indicating the CAG information list update of the UE, the last serving base station may determine that the UE needs to update the CAG information list.

And S406, after the UE is not verified, the service base station finally sends an RRC reject message or an RRC release message to the UE.

The step S406 may refer to the description of step S306 in the method shown in fig. 3, which is not described herein.

And S407, the service base station deletes the configured identifier for indicating the updating of the CAG information list of the UE after sending the RRC reject message or the RRC release message.

In some possible embodiments, the last serving base station may delete the above-mentioned identifier after receiving the L2ACK of the UE to the RRC reject message or the RRC release message, i.e. the last serving base station deletes the above-mentioned identifier after confirming that the UE has successfully received the updated CAG information list.

And deleting the identifier by the final service base station, so that the problem that the UE repeatedly updates the CAG information list due to the fact that the final service base station performs S406 again when the subsequent UE sends the RRC recovery request to the final service base station can be avoided.

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

The step S408 may refer to the description of step S204 in the method shown in fig. 2, which is not described herein.

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 indicating the update of the CAG information list of the UE, so that 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 may update the CAG information list. Thus, the UE in the inactive state can update the CAG information list in time.

In the following, with reference to fig. 5, the method shown in fig. 2 will be described in detail by taking a terminal device as UE, an access network device as a last serving base station, a core network device as AMF network element, where the terminal device is in an inactive state, and the updated CAG information list (or called a first CAG information list) of the UE and the CAG information list (or called a second CAG information list) supported by the access network device do not have the same CAG identifier.

Fig. 5 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 5, the non-public network subscription information updating method may include the following S501-S507.

S501, the AMF network element sends MRL to the final service base station, wherein the MRL comprises the updated CAG information list of the UE.

S502, finally, the service base station updates the stored CAG information list of the UE into an updated CAG information list of the UE according to the received MRL.

And S503, finally, the service base station sends a paging message to the UE, wherein the paging message can carry a cause value for indicating the updating of the CAG information list of the UE.

The cause value may be "UE subscription information update", for example.

In addition, the S503 may refer to the description of S201 in the method shown in fig. 2, which is not described herein.

S504, after receiving the paging message, the UE sends an RRC recovery request message to the last service base station, wherein the RRC recovery request message carries the reason value.

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

And S505, finally, the service base station verifies the UE.

After the last serving base station receives the RRC resume request message, the last serving base station may verify the UE to determine whether to allow the UE 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 last serving base station do not have the same CAG identifier (i.e. the last serving base station is not matched with the updated CAG information list of the UE or the UE verification is not passed), 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 cause value for indicating the CAG information list update of the UE, the last serving base station may determine that the UE needs to update the CAG information list.

And S506, after the UE is not verified, the service base station sends an RRC reject message or an RRC release message to the UE.

The step S506 may refer to the description of step S306 in the method shown in fig. 3, which is not described herein.

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

The step S507 may refer to the step S204 in the method shown in fig. 2, which is not described herein.

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 may determine that the UE needs to update the CAG information list according to the cause value carried in the received RRC recovery request message, so that 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 may update the CAG information list. Thus, the UE in the inactive state can update the CAG information list in time.

In the following, with reference to fig. 6, a method shown in fig. 2 will be described in detail by taking a terminal device as a UE, and two access network devices (e.g., a first access network device and a second access network device) in a communication system, where the first access network device is another base station near a last serving base station (or referred to as a target base station, i.e., a base station that receives an RRC recovery request message sent by the UE), the second access network device is a last serving base station, the core network device is an AMF network element, and the terminal device is in an inactive state, and the CAG information list (or referred to as a first CAG information list) of the updated UE and the 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.

Fig. 6 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 6, the non-public network subscription information updating method may include the following S601-S6010.

S601, the AMF network element sends MRL to the final service base station, wherein the MRL comprises the updated CAG information list of the UE.

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

And S602, the service base station updates the stored CAG information list of the UE into an updated CAG information list of the UE according to the received MRL.

And S603, finally, the service base station sends the RAN paging message to the target base station.

The S603 may refer to the description of the other access network devices near the last service access network device in S201 in the method shown in fig. 2, which is not described herein.

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

The step S604 may refer to the description of the step S201 in the method shown in fig. 2 that the access network device is other access network devices near the last service access network device, which is not described herein.

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 may check whether the paging message has a corresponding identifier, and if so, the UE may send an RRC resume request message to the target base station to request connection 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 service base station to request the context of the UE to the last service base station.

S607, after receiving the context request message, the service 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. Indication information for indicating the CAG information list update of the UE may also be carried. The indication information may be, for example, "indication UE subscription information update".

And 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 may authenticate the UE to determine whether to allow the UE 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 (i.e. the target base station is not matched with the updated CAG information list of the UE or the verification of the UE is not passed), 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 indication information for indicating the update of the CAG information list of the UE, the target base station may determine that the UE needs to update the CAG information list.

And S609, after the UE is not verified, the target base station sends an RRC reject message or an RRC release message to the UE.

And under the condition that the target base station determines that the UE needs to update the CAG information list, the updated CAG information list of the UE can be carried in the RRC reject message or the RRC release message. The updated CAG information list of the UE may be an 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.

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

The S6010 may refer to the description of S204 in the method shown in fig. 2, and will not be described herein.

In this embodiment, fig. 7 is a schematic flow chart of another method for updating non-public network subscription information according to the embodiment of the present application. As shown in fig. 7, the non-public network subscription information updating method includes S701-S7010, which is substantially the same as the method shown in fig. 6, i.e., 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 CAG information list update of the UE, for example, a cause value of "UE subscription information update". At this time, the paging message in S704 and the RRC restoration request message in S705 may also carry the cause value. In this way, when the target base station receives the RRC restoration request message, it can be determined, according to the indication of the cause value, that the UE sends the RRC restoration request 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 a non-activated state and the UE sends an RRC resume request message to other base stations near the last serving base station and cannot pass verification, the target base station may determine that the UE needs to update the CAG information list according to the received context request response message/indication information carried in the context request failure message, and/or the cause value carried in the RRC resume request message, so that when the UE is not allowed to access, the target base station carries the updated CAG information list of the UE through an RRC reject message or an RRC release message sent to the UE, so that the UE may update the CAG information list. Thus, the UE in the inactive state can update the CAG information list in time.

In an embodiment of the present application, another method for updating subscription information of a non-public network is further provided, where the method may include: in the case that the access network device receives the RRC restoration request message, the access network device may further send an RRC restoration message to the terminal device, where the RRC restoration message carries an indication, such as a second indication, for limiting transmission of non-access stratum NAS signaling and/or service data by the terminal device. So that the terminal device can be connected with the access network device temporarily in a limited manner, and thus, NAS-PDUs containing new subscription information, which are sent by the core network device (such as an AMF network element), are received from the access network device.

In the following, with reference to fig. 8, taking a terminal device as a UE, an access network device as a last serving base station, a core network device as an AMF network element, where the terminal device is in a non-active state, and the updated CAG information list (or called a first CAG information list) of the UE and the CAG information list (or called a second CAG information list) supported by the access network device do not have the same CAG identifier, a detailed description is given of a method for updating non-public network subscription information provided in the embodiment of the present application.

Fig. 8 is a flowchart of another method for updating non-public network subscription information according to an embodiment of the present application. As shown in fig. 8, the non-public network subscription information updating method may include the following S801 to S8011.

S801, the AMF network element sends NAS-PDU and MRL to the final service base station, wherein the NAS-PDU and MRL both comprise the updated CAG information list of the UE.

And the AMF network element sends the NAS-PDU to the last service base station and is used for the last service base station to transmit the NAS-PDU to the UE so as to update the CAG information list of the UE. Therefore, the updated CAG information list of the UE is included in the NAS-PDU. And the final service base station can store the updated CAG information of the UE when receiving the MRL, so that the subsequent final service 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.

S802, after receiving the MRL, the service base station stores the updated CAG information list of the UE in the MRL and stores the CAG information list of the UE before updating.

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

The step 803 may refer to the step 201 in the method shown in fig. 2, which is not described herein.

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

And S805, finally, the service base station authenticates the UE.

S806, when the last serving base station determines that the UE needs to update the CAG information list, after the UE is not verified, the last serving base station sends an RRC restoration message to the UE, where the RRC restoration message carries an indication for limiting the UE to transmit NAS signaling (such as a service request, a PDU session control establishment request, etc.) and/or service data. By the indication, the UE can be prevented from transmitting data to the core network device through the last serving base station after the UE establishes the temporary connection with the last serving base station.

And establishing temporary connection between the UE and the final service base station under the condition of limiting transmission by the RRC recovery message, wherein the temporary connection is used for the NAS-PDU which is sent to the UE transparent core network equipment by the final service base station and contains the updated CAG information list of the UE.

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

S808, the UE enters a connection state and establishes connection with the final service base station.

S809, finally the service base station sends NAS-PDU to the UE.

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

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

After the UE receives the NAS-PDU, the UE enters an idle state through the RRC release message, so that the UE is prevented from being connected with a final service base station for a long time.

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 that the UE needs to update the CAG information list according to the stored updated CAG information list of the UE and the pre-updated CAG information list, so that under the condition of limiting the information transmitted by the UE, temporary connection is established with the UE, so that the UE can receive the NAS-PDU including the updated CAG information list of the UE sent by the core network device from the last serving base station, thereby facilitating the UE in the inactive state to update the CAG information list in time.

The above description has been presented mainly from the point of interaction between the nodes. It will be appreciated that each node, e.g. the terminal device, the first access network device, the second access network device, comprises corresponding hardware structures and/or software modules for performing each function in order to achieve the above described functions. Those of skill in the art will readily appreciate that the algorithm steps of the examples described in connection with the embodiments disclosed herein, the methods of the embodiments of the present application may be implemented in hardware, software, or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

According to the embodiment of the application, the terminal device, the first access network device and the second access network device may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

In specific implementation, each network element shown in the application includes: the terminal device, the first access network device, and the second access network device may adopt the constituent 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 in the embodiment of the present application, where the communication device may be a terminal device or a chip or a system on a chip in the terminal device when the communication device has a function of the terminal device described in the embodiment of the present application. When the communication device has the function of the access network device described in the embodiments of the present application, the communication device may be the access network device or a chip or a system on a 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 by a communication line 902. In one example, processor 901 may include one or more CPUs, such as CPU0 and CPU1 in fig. 9.

As an alternative implementation, the communication device includes a plurality of processors, e.g., processor 907 may be included in addition to processor 901 in fig. 9.

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

Communication line 902 is used to transfer information between components included in the communication device.

A transceiver 903 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), etc. The transceiver 903 may be an interface circuit, a pin, a radio frequency module, a transceiver, or any device capable of enabling communications.

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

The memory 904 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and/or instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device capable of storing information and/or instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read _only memory, EEPROM), a compact disc read-only memory (compact disc read _only memory, cd_rom) or other optical disc storage, magnetic disc storage medium or other magnetic storage device, and optical disc storage includes compact discs, laser discs, optical discs, digital versatile discs, or blu-ray discs, etc.

Note that the memory 904 may exist separately from 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, etc. The memory 904 may be located within the communication device or external to the communication device, without limitation. 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 in the foregoing embodiment of the present application may be implemented.

As an alternative implementation, the communication apparatus further comprises an output device 905 and an input device 906. Illustratively, the input device 906 is a keyboard, mouse, microphone, or joystick device, and the output device 905 is a display screen, speaker (spaker), or 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 having a similar structure in fig. 9. Further, the constituent structure shown in fig. 9 does not constitute a limitation of the communication apparatus, and the communication apparatus may include more or less components than those shown in fig. 9, or may combine some components, or may be arranged in different components, in addition to those shown in fig. 9.

In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

Fig. 10 shows a block diagram of a communication apparatus 1000, where 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 apparatus capable of implementing the functions of the first access network device in the foregoing method, and the communication apparatus 1000 may be used to perform the functions of the first access network device involved in the foregoing method embodiments. As one implementation, the communication apparatus 1000 shown in fig. 10 includes: a receiving unit 1001, a processing unit 1002, and a transmitting unit 1003.

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

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

In one 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 restoration request message to the first access network device, and the second message includes a second cause value, where the second cause value is used to instruct the terminal device to update a CAG information list; the RRC recovery request message includes a second cause value.

In one 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 a first identifier, where the first identifier is used to indicate that the CAG information list of the terminal device is not updated.

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

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 a context of the terminal device; the receiving unit 1001 is further configured to receive a fifth message sent by the second access network device, where the fifth message includes a first CAG information list and a first indication, and the first indication is used to indicate that the CAG information list of the terminal device is updated.

In one 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 that the CAG information list of the terminal device is updated; a sending unit 1003, 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 restoration request message to the first access network device, and the second message includes a second cause value; the RRC recovery request message includes a second cause value.

In one possible design, the processing unit 1002 is further configured to configure 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 the system message.

Specifically, each step involved in the first access network device in the foregoing method embodiment shown in fig. 2 to fig. 7 may be referred to a functional unit or a module corresponding to the device, and the communication device may be used to execute the function of the first access network device in the foregoing non-public network subscription information updating method, so that the same effect as that of the foregoing non-public network subscription information updating method may be achieved, which is not described herein.

As yet another implementation manner, the communication apparatus 1000 shown in fig. 10 may also be used to perform the functions of the first access network device as referred to in the method embodiment shown in fig. 8.

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

Specifically, each step involved in the first access network device in the foregoing method embodiment shown in fig. 8 may be referred to a functional unit or a module corresponding to the device, and the communication device may be configured to perform the function of the first access network device in the foregoing non-public network subscription information updating method, so that the same effect as that of the foregoing non-public network subscription information updating method may be achieved, which is not described herein in detail.

Fig. 11 shows a block diagram of a communication apparatus 1100, where 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 apparatus capable of implementing the functions of the second access network device in the foregoing method, and the communication apparatus 1100 may be used to perform the functions of the second access network device involved in the foregoing method embodiment. As one implementation, the communication device 1100 shown in fig. 11 includes: a receiving unit 1101, a transmitting unit 1102.

A receiving unit 1101, configured to receive a fourth message sent by the first access network device, where the fourth message is used to request a 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 indicate that the CAG information list of the terminal device is updated.

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 configured to instruct the first access network device to send a second message, and the sixth message includes a second cause value, where the second cause value is configured to instruct the terminal device to update the CAG information list.

Specifically, each step involved in the second access network device in the embodiments of the methods shown in fig. 6 and fig. 7 may be referred to a functional unit or a module corresponding to the device, and the communication device may be used to execute the function of the second access network device in the foregoing method for updating the non-public network subscription information, so that the same effect as that of the foregoing method for updating the non-public network subscription information may be achieved, which is not described herein.

Fig. 12 shows a block diagram of a communication apparatus 1200, where the communication apparatus 1200 may be a terminal device, a chip in a terminal device, a system on a chip or other apparatus capable of implementing the functions of a terminal device in the above method, and the communication apparatus 1200 may be used to perform the functions of a terminal device involved in the above method embodiments. As one implementation, the communication apparatus 1200 shown in fig. 12 includes: a receiving unit 1201, a transmitting unit 1202.

A sending unit 1202, configured to send an RRC restoration request message to a 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 comprises a first CAG information list, wherein the first CAG information list is a CAG information list of the updated terminal equipment.

In one possible design, the receiving unit 1201 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 restoration request message to the first access network device, and the second message includes a second cause value, where the second cause value is used to instruct the terminal device to update the CAG information list; the RRC recovery request message includes a second cause value.

Specifically, each step involved in the terminal device in the foregoing method embodiments shown in fig. 2 to fig. 7 may be referred to a functional unit or a module corresponding to the device, and the communication device may be used to execute the function of the terminal device in the foregoing non-public network subscription information updating method, so that the same effect as that of the foregoing non-public network subscription information updating method may be achieved, which is not described herein.

As yet another implementation manner, the communication apparatus 1200 shown in fig. 12 may also be used to perform functions of a terminal device related to the method embodiment shown in fig. 8.

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

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

Specifically, each step involved in the terminal device in the embodiment of the method shown in fig. 8 may be referred to a functional unit or a module corresponding to the device, and the communication device may be used to execute the function of the terminal device in the method for updating the non-public network subscription information, so that the same effect as that of the method for updating the non-public network subscription information may be achieved, which is not described herein.

The embodiment of the application also provides a communication system, which may include: terminal equipment, first access network equipment and second access network equipment. The first access network device may have the function of the communication apparatus 1000, the second access network device may have the function of the communication apparatus 1100, and the terminal device may have the function of the communication apparatus 1200.

Embodiments of the present application also provide a computer-readable storage medium. All or part of the flow in the above method embodiments may be implemented by a computer program to instruct related hardware, where the program may be stored in the above computer readable storage medium, and when the program is executed, the program may include the flow in the above method embodiments. The computer readable storage medium may be the terminal apparatus of any of the foregoing embodiments, such as: the internal storage unit comprises a data transmitting end and/or a data receiving end, such as a hard disk or a memory of the terminal device. The computer readable storage medium may be an external storage device of the terminal apparatus, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card), or the like, which are provided in the terminal apparatus. Further, the computer-readable storage medium may include both the internal storage unit and the external storage device of the terminal apparatus. The computer-readable storage medium is used for storing the computer program and other programs and data required by the terminal device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

The embodiment of the application also provides a computer instruction. All or part of the above-described method embodiments may be performed by computer instructions to instruct related hardware (e.g., computers, processors, network devices, terminals, etc.). The program may be stored in the computer-readable storage medium described above.

The embodiment of the application also provides a chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, without limitation. The chip system includes a processor and a transceiver, and all or part of the flow in the above method embodiment may be implemented by the chip system, for example, the chip system may be used to implement a function performed by the terminal device in the above method embodiment, or implement a function performed by the first access network device or the second access network device in the above method embodiment.

In a possible design, the above chip system further includes a memory, where the memory is configured to store program instructions and/or data, and when the chip system is running, the processor executes the program instructions stored in the memory, so that the chip system performs a function performed by the terminal device in the above method embodiment, or performs a function performed by the first access network device in the above method embodiment, or performs a function performed by the terminal device in the above method embodiment.

In the embodiments 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, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a hard disk (HDD) or a Solid State Drive (SSD), or may be a volatile memory (volatile memory), for example, a random-access memory (RAM). The memory is 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, but is not limited to such. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a memory function, for storing instructions and/or data.

It should be noted that the terms "comprising" and "having" and any variations thereof in the description, claims and drawings of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement 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 ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and the parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or partly contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing an apparatus, such as: may be a single-chip microcomputer, chip or the like, or a processor (processor) performs all or part of the steps of a method as described in various embodiments of the application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for updating subscription information of a non-public network, the method comprising:

the method comprises the steps that first access network equipment receives a Radio Resource Control (RRC) recovery request message sent by terminal equipment;

the first access network device sends a first message to the terminal device, wherein the first message comprises a first Closed Access Group (CAG) information list, 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.
The method of claim 1, wherein the first message further comprises a first cause value, the first cause value being used to instruct the terminal device to update a CAG information list.
The method according to claim 1 or 2, characterized in that the method further comprises:

the first access network device sends a second message to the terminal device, wherein the second message is used for indicating the terminal device to send the RRC recovery request message to the first access network device, the second message comprises a second cause value, and the second cause value is used for indicating CAG information list update of the terminal device;

The RRC resume request message includes the second cause value.
The method according to claim 1 or 2, characterized in that the method further comprises:

the first access network device receives a third message sent by the core network device, wherein the third message comprises 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:

and after the first access network equipment sends the first message to the terminal equipment, the first access network equipment deletes the first identifier.
The method according to claim 1 or 2, characterized in that the method further comprises:

the first access network equipment sends a fourth message to the second access network equipment, wherein the fourth message is used for requesting the context of the terminal equipment;

the first access network device receives a fifth message sent by the second access network device, wherein the fifth message comprises the first CAG information list and a first indication, and the first indication is used for indicating the CAG information list of the terminal device to update.
The method of claim 6, wherein the method further comprises:

the first access network device receives a sixth message sent by the second access network device, wherein the sixth message comprises a second cause value, and the second cause value is used for indicating the CAG information list of the terminal device to 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 restoration request message to the first access network device, and the second message includes the second cause value;

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

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

the second access network equipment receives a fourth message sent by the first access network equipment, wherein the fourth message is used for requesting the context of the terminal equipment;

The second access network device sends a fifth message to the first access network device, wherein the fifth message comprises a first Closed Access Group (CAG) information list and a first indication, the first CAG information list is the updated CAG information list of the terminal device, and the first indication is used for indicating the updating of the CAG information list of the terminal device.
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 a second cause value, where the second cause value is used to instruct the terminal device to update a CAG information list.
A method for updating subscription information of a non-public network, the method comprising:

the terminal equipment sends a Radio Resource Control (RRC) recovery request message to the first access network equipment;

the terminal equipment receives a first message from the first access network equipment, wherein the first message is an RRC reject message or an RRC release message; the first message comprises a first Closed Access Group (CAG) information list, wherein the first CAG information list is the updated CAG information list of the terminal equipment.
The method of claim 11, wherein the first message further comprises a first cause value, the first cause value being used to instruct the terminal device to update a CAG information list.
The method according to claim 11 or 12, characterized in that the method further comprises:

the terminal equipment receives a second message sent by the first access network equipment, wherein the second message is used for indicating the terminal equipment to send the RRC recovery request message to the first access network equipment, the second message comprises a second cause value, and the second cause value is used for indicating CAG information list update of the terminal equipment;

the RRC resume request message includes the second cause value.
A method for updating subscription information of a non-public network, the method comprising:

the method comprises the steps that first access network equipment receives a Radio Resource Control (RRC) recovery request message sent by terminal equipment;

the first access network device sends an RRC recovery message to the terminal device, wherein the RRC recovery message comprises a second indication, and the second indication is used for limiting the terminal device to transmit non-access stratum NAS signaling and/or service data.
A method for updating subscription information of a non-public network, the method comprising:

The terminal equipment sends a Radio Resource Control (RRC) recovery request message to the first access network equipment;

the terminal equipment receives an RRC recovery message sent by the first access network equipment, wherein the RRC recovery message comprises a second instruction, and the second instruction is used for limiting the terminal equipment to transmit non-access stratum NAS signaling and/or service data.
A communication device, the communication device comprising:

a receiving unit, configured to receive a radio resource control RRC recovery request message sent by a 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 an updated CAG information list of the terminal device, and the first message is an RRC reject message or an RRC release message.
The communication apparatus of claim 16, wherein the first message further comprises a first cause value, the first cause value being used to instruct the terminal device to update a CAG information list.
The communication apparatus according to claim 16 or 17, wherein the transmitting unit is further configured to transmit, to the terminal device, a second message, the second message being configured to instruct the terminal device to transmit the RRC restoration request message to the first access network device, the second message including a second cause value, the second cause value being configured to instruct the terminal device to update a CAG information list; the RRC resume 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, the third message including the first CAG information list;

the communication device further comprises a processing unit, wherein the processing unit is used for setting a first identifier, and the first identifier is used for indicating that the CAG information list of the terminal equipment is not updated.
The communication apparatus according to claim 19, wherein the processing unit is further configured to delete the first identifier after sending the first message to the terminal device.
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, the fourth message being used to request a 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, and the first indication is used to indicate that the CAG information list of the terminal device is updated.
The communications apparatus of claim 21, wherein the receiving unit is further configured to receive a sixth message sent by the second access network device, the sixth message including a second cause value, the second cause value being configured to indicate a CAG information list update of the terminal device;

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

a receiving unit, configured to receive a fourth message sent by a first access network device, where the fourth message is used to request a 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 that a CAG information list of the terminal device is updated.
The communications apparatus of claim 24, wherein the means for transmitting is further configured to transmit a sixth message to the first access network device, the sixth message configured to instruct the first access network device to transmit a second message, the sixth message including a second cause value, the second cause value configured to instruct the terminal device to update a CAG information list.
A communication device, the communication device comprising:

a sending unit, configured to send a radio resource control RRC recovery request message to a 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 reject message or an RRC release message; the first message comprises a first Closed Access Group (CAG) information list, wherein the first CAG information list is the updated CAG information list of the terminal equipment.
The communications apparatus of claim 26, wherein the receiving unit is further configured to receive a second message sent by the first access network device, the second message being configured to instruct the terminal device to send the RRC restoration request message to the first access network device, the second message including a second cause value, the second cause value being configured to instruct the terminal device to update a CAG information list; the RRC resume request message includes the second cause value.
A communication device, the communication device comprising:

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

And the sending unit is used for sending an RRC recovery message to the terminal equipment, wherein the RRC recovery message comprises a second instruction, and the second instruction is used for limiting the terminal equipment to transmit non-access stratum (NAS) signaling and/or service data.
A communication device, the communication device comprising:

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

and the receiving unit is used for receiving the RRC restoration message sent by the first access network equipment, wherein the RRC restoration message comprises a second instruction, and the second instruction is used for limiting the terminal equipment to transmit non-access stratum (NAS) signaling and/or service data.
A communication device comprising a processor and a transceiver for supporting the communication device to perform the method of updating non-public network subscription information according to any one of claims 1-15.