RU2792696C1 - Data processing method and data processing device - Google Patents

Abstract

FIELD: wireless communication.

SUBSTANCE: access and mobility management function (AMF) node delivers the quality of service (QoS) parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests a service transfer and signalling overhead reduction. The AMF node receives the QoS parameter used for communication over the ProSe 5 (PC5) communication interface of the terminal device, the AMF node saves the QoS parameter; when the pre-set condition is satisfied, the AMF node sends the stored QoS parameter to the first access network device.

EFFECT: simplification of the operation procedure.

14 cl, 13 dwg

Description

The field of technology to which the invention belongs

[0001] The present application relates to the field of communication technologies and, in particular, to a data processing method and a data processing device.

State of the art

[0002] Vehicle-to-everything (V2X) wireless technology is a next-generation information and communications technology that connects vehicles to everything else. V represents vehicles and X represents any entity that communicates with vehicles, such as a vehicle, person, roadside infrastructure, or network. V2X wireless communication technology uses two types of communication interfaces, one is a direct communication interface between a vehicle, a person and a road, such as the ProSe 5 communication interface (ProSe communication 5 (PC5)), which can be used for short distance communication between a vehicle , human and dear; and the other is a communication interface between a terminal and a base station, such as a direct radio interface between a universal terrestrial radio access network (UTRAN) and a user equipment (radio interface between UTRAN and user equipment (Uu)), which can perform reliable communication over a long distance in a larger range.

[0003] Currently, in a V2X wireless communication system based on 5G communication technology, a policy control function (PCF) node sends a quality of service (QoS) parameter used for communication to an access network device. via PC5 interface. The QoS parameter may be used for communication over the PC5 interface between multiple (two or more) terminal devices. The specific process is as follows: When a terminal device requests to establish a network connection, an access and mobility management function (AMF) node establishes an N11 interface connection with a PCF node for the terminal device; the AMF node requests a QoS parameter from the PCF node; and then the PCF node sends the QoS parameter to the AMF node using the N11 interface connection, and the AMF node sends the QoS parameter to the access network device.

[0004] In the above solution, there are many scenarios in which the terminal device requests to establish a connection to the network. For example, the terminal device is in an idle state and again requests to establish a connection to the network, or the terminal device is in a connected state and requests a handoff from an access network source device to an access network target device. Since the above actions are performed in a variety of scenarios, the operation procedure is complicated and the signaling overhead is relatively high.

The essence of the invention

[0005] Embodiments of the present application provide a data processing method and a data processing apparatus to simplify an operation procedure in which an AMF node delivers a QoS parameter to an access network device to which a terminal device requests a connection, or an access network target device to which the terminal device requests a handover, and reduce the signaling overhead.

[0006] A first aspect of embodiments of the present application provides a data processing method including the following:

[0007] The AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device. The AMF node then stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the access network device to which the terminal device requests a connection or handover. This simplifies the operation procedure and reduces signaling overhead.

[0008] In an exemplary embodiment of the first aspect, that the AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives the QoS parameter over the N2 interface.

[0009] In another possible implementation of the first aspect, that the AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives the N2 interface information, wherein the N2 interface information includes the QoS parameter . That the AMF node stores the QoS parameter includes the following: The AMF node stores the N2 interface information.

[0010] In another possible implementation of the first aspect, that the AMF node sends the QoS parameter to the first access network device includes the following: The AMF node sends the QoS parameter to the first access network device on the N2 interface; or the AMF node sends the N2 interface information to the first access network device, the N2 interface information including the QoS parameter.

[0011] In another possible implementation of the first aspect, the preset condition includes the following: the terminal device is in the idle state, and the AMF node receives an N2 interface signaling connection setup request from the first access network device, wherein the N2 interface signaling connection setup request requests setting the signaling connection of the N2 interface for the terminal device. In this exemplary embodiment, when the terminal device reconnects to the network after disconnecting the signaling connection to the network, the AMF node sends a QoS parameter to the first access network device to which the terminal device requests a connection. A specific scenario is provided in which an AMF node is initiated to send a QoS parameter to a first access network device.

[0012] In another possible implementation of the first aspect, the first access network device is the target device of the access network of the terminal device; and the preset condition includes: the terminal device is in a connected state and the AMF node receives a handover request (handover required) message from the access network source device, wherein the handover request message requests the handover of the terminal device from the source access network device to the target access network device; the terminal device is in a connected state, and the AMF node receives a path switch request message from the target access network device, wherein the path switch request message requests the transfer of the terminal device from the source access network device to the target access network device or the switch request message the path requests switching of the signaling connection N2 and the data plane path N3 of the terminal device from the source device of the access network to the target device of the access network; or the terminal device is in a connected state and the terminal device is successfully handed over from the access network source device of the terminal device to the access network target device. In this exemplary implementation, many specific scenarios are provided in which an AMF node is triggered to send a QoS parameter to a first access network device.

[0013] In another possible implementation of the first aspect, that the AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives N2 interface information from the PCF node for V2X communication, wherein the interface information N2 includes a QoS option. That the AMF node stores the QoS parameter includes the following: When the AMF node determines that the N2 interface information comes from the PCF node for V2X communication, the AMF node stores the N2 interface information. In this exemplary implementation, when the AMF node receives the QoS parameter from the PCF node for V2X communication, the AMF node stores the QoS parameter.

[0014] In another possible implementation of the first aspect, before the AMF node receives the N2 interface information from the PCF node for V2X communication, the method further includes the following: The AMF node selects for the terminal device, based on the subscription information of the terminal device, the PCF node for communication V2X. In this exemplary embodiment, the AMF node selects the PCF node for V2X communication for the terminal device so that when the AMF node subsequently receives a QoS parameter sent by the PCF node for V2X communication, the AMF node stores the QoS parameter.

[0015] In another possible implementation of the first aspect, that the AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives N2 interface information and indication information from the PCF node, wherein the interface information The N2 includes the QoS parameter, and the indication information instructs the AMF node to store the N2 interface information, or the indication information is used by the AMF node to store the QoS parameter. That the AMF node stores the QoS parameter includes the following: The AMF node stores the QoS parameter based on the indication information. In this exemplary implementation, the AMF node stores the QoS parameter based on the indication information sent by the PCF node.

[0016] In another possible implementation of the first aspect, that the AMF node receives the QoS parameter that is used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives N2 interface information from the PCF node, wherein the N2 interface information includes includes a QoS parameter and indication information used to direct the AMF node to store the N2 interface information, and optionally, the indication information is used by the AMF node to store the QoS parameter. That the AMF node stores the QoS parameter includes the following: The AMF node stores the QoS parameter based on the indication information. In this exemplary implementation, the AMF node stores the QoS parameter based on the indication information carried in the N2 interface information sent by the PCF node.

[0017] In another possible implementation of the first aspect, that the AMF node receives the QoS parameter that is used for communication over the PC5 interface of the terminal device includes the following: The AMF node receives the QoS parameter from the second access network device, wherein the second network device access network device is the first access network device or access network device that serves the terminal device before the first access network device serves the terminal device. In this exemplary implementation, when the AMF node receives the QoS parameter from the second access network device, the AMF node stores the QoS parameter.

[0018] In another possible implementation of the first aspect, before the AMF node receives the QoS parameter from the second access network device, the method further includes the following: The AMF node sends a context release command to the second access network device. That the AMF node receives the QoS parameter from the second access network device includes the following: The AMF node receives a context release complete message from the second access network device, wherein the context release complete message carries the QoS parameter. In this exemplary implementation, a specific scenario is provided in which a second access network device sends a QoS parameter to an AMF node. Specifically, in the terminal device release process, the second access network device sends a QoS parameter to the AMF node by using a context release complete message.

[0019] In another possible implementation of the first aspect, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device the device requests a handover.

[0020] A second aspect of embodiments of the present application provides a data processing method including the following:

[0021] The PCF node obtains the QoS parameter used for communication over the PC5 interface of the terminal device, wherein the QoS parameter is notified to the access network device, and the QoS parameter is used for communication over the PC5 interface of the terminal device. Then, the PCF node sends the N2 interface information and indication information to the AMF node, the N2 interface information includes the QoS parameter, and the indication information instructs the AMF node to store the QoS parameter, or the indication information instructs the AMF node to store the N2 interface information. In this embodiment, the AMF node stores the N2 interface information or the QoS parameter by using the indication information delivered by the PCF node.

[0022] In an exemplary embodiment of the second aspect, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests a handover.

[0023] A third aspect of embodiments of the present application provides a data processing method including:

[0024] The PCF node obtains the QoS parameter used for communication over the PC5 interface of the terminal device, wherein the QoS parameter is notified to the access network device, and the QoS parameter is used for communication over the PC5 interface of the terminal device. Then, the PCF node sends the N2 interface information to the AMF node, the N2 interface information includes a QoS parameter and indication information for instructing the AMF node to store the N2 interface information, and optionally, the indication information is used by the AMF node to store the QoS parameter. In this embodiment, the indication information sent by the PCF node instructs the AMF node to store the N2 interface information or the QoS parameter.

[0025] In an exemplary embodiment of the third aspect, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests a handover.

[0026] A fourth aspect of embodiments of the present application provides a data processing method including the following:

[0027] In a V2X communication network based on 5G, an access network device receives N2 interface information from a PCF node, wherein the N2 interface information includes a QoS parameter used for communication over the PC5 interface of the terminal device, and the QoS parameter is notified to the network device access, and the QoS parameter is used for communication over the PC5 interface of the terminal device. The access network device then sends the QoS parameter to the AMF node. In this embodiment, the access network device sends the QoS parameter to the AMF node. When the AMF node receives the QoS parameter sent by the access network device, the AMF node stores the QoS parameter, thereby realizing the storage of the QoS parameter.

[0028] In an exemplary embodiment of the fourth aspect, after this access network device receives the N2 interface information from the PCF node, and before the access network device sends the QoS parameter to the AMF node, the method further includes the following: The access network device receives an AMF node context release command. The access network device then releases the terminal device context based on the context release command. That the access network device sends the QoS parameter to the AMF node includes the following: The access network device sends a context release complete message to the AMF node, wherein the context release complete message carries the QoS parameter, and the context release complete message is used by the node AMF to store the QoS setting. In this exemplary embodiment, in the terminal device release process, the access network device sends a QoS parameter to the AMF node by using a context release complete message.

[0029] A fifth aspect of embodiments of the present application provides a data processing device. The data processing device has a function of realizing the operation of the AMF node in the first aspect. The function may be implemented in hardware, or may be implemented in hardware by executing appropriate software. The hardware or software includes one or more modules corresponding to the above function.

[0030] A sixth aspect of embodiments of the present application provides another data processing device. The data processing device has a function of realizing the operation of the PCF node in the second aspect. The function may be implemented in hardware, or may be implemented in hardware by executing appropriate software. The hardware or software includes one or more modules corresponding to the above function.

[0031] A seventh aspect of embodiments of the present application provides another data processing device. The data processing device has a function of realizing the functioning of the PCF node in the third aspect. The function may be implemented in hardware, or may be implemented in hardware by executing appropriate software. The hardware or software includes one or more modules corresponding to the above function.

[0032] An eighth aspect of embodiments of the present application provides another data processing device. The data processing device has a function of realizing the operation of the access network device in the fourth aspect. The function may be implemented in hardware, or may be implemented in hardware by executing appropriate software. The hardware or software includes one or more modules corresponding to the above function.

[0033] A ninth aspect of embodiments of the present application provides a data processing apparatus. The data processing device includes a processor, a memory, an input/output device, and a bus. Memory stores computer instructions; and when executing computer instructions in memory, the processor is configured to implement any of the embodiments of the first aspect.

[0034] In an exemplary embodiment of the ninth aspect, the processor, memory, and I/O device are separately connected to the bus.

[0035] A tenth aspect of embodiments of the present application provides a data processing device. The data processing device includes a processor, a memory, an input/output device, and a bus. Memory stores computer instructions; when the processor executes computer instructions in memory, the computer instructions are stored in memory; and when executing computer instructions in memory, the processor is configured to implement any of the embodiments of the second aspect.

[0036] In an exemplary embodiment of the tenth aspect, the processor, memory, and I/O device are separately connected to the bus.

[0037] An eleventh aspect of the embodiments of the present application provides a data processing apparatus. The data processing device includes a processor, a memory, an input/output device, and a bus. Memory stores computer instructions; when the processor executes computer instructions in memory, the computer instructions are stored in memory; and when executing computer instructions in memory, the processor is configured to implement any of the embodiments of the third aspect.

[0038] In an exemplary implementation of the eleventh aspect, the processor, memory, and I/O device are separately connected to the bus.

[0039] A twelfth aspect of embodiments of the present application provides a data processing apparatus. The data processing device includes a processor, a memory, an input/output device, and a bus. Memory stores computer instructions; when the processor executes computer instructions in memory, the computer instructions are stored in memory; and when executing computer instructions in memory, the processor is configured to implement any of the embodiments of the fourth aspect.

[0040] In an exemplary embodiment of the twelfth aspect, the processor, memory, and I/O device are separately connected to the bus.

[0042] A thirteenth aspect of the embodiments of the present application provides an on-chip system. The microchip system includes a processor configured to support the network device in realizing the respective function in the first aspect, such as sending or processing the respective data and/or information in the above method. In an exemplary embodiment, the microchip system further includes memory. The memory is adapted to store program instructions and data needed by the network device. The microchip system may include a chip, or may include a chip and another discrete component.

[0042] A fourteenth aspect of the embodiments of the present application provides an on-chip system. The microchip system includes a processor configured to support the network device in realizing the respective function in the second aspect, such as sending or processing the respective data and/or information in the above method. In an exemplary embodiment, the microchip system further includes memory. The memory is adapted to store program instructions and data needed by the network device. The microchip system may include a chip, or may include a chip and another discrete component.

[0043] A fifteenth aspect of embodiments of the present application provides a chip system. The microchip system includes a processor configured to support the network device in realizing the respective function in the third aspect, such as sending or processing the respective data and/or information in the above method. In an exemplary embodiment, the microchip system further includes memory. The memory is adapted to store program instructions and data needed by the network device. The microchip system may include a chip, or may include a chip and another discrete component.

[0044] A sixteenth aspect of embodiments of the present application provides a chip system. The chip system includes a processor configured to support the network device in realizing the respective function in the fourth aspect, such as sending or processing the respective data and/or information in the above method. In an exemplary embodiment, the microchip system further includes memory. The memory is adapted to store program instructions and data needed by the network device. The microchip system may include a chip, or may include a chip and another discrete component.

[0045] A seventeenth aspect of embodiments of the present application provides a data processing system including a data processing apparatus according to a fifth aspect, a data processing apparatus according to a fifth aspect or a sixth aspect, and a data processing apparatus according to a seventh aspect.

[0046] An eighteenth aspect of embodiments of the present application provides a computer program product including instructions. When a computer program product is executed on a computer, any one of the first aspect, second aspect, third aspect, or fourth aspect is executed by the computer.

[0047] A nineteenth aspect of embodiments of the present application provides a computer-readable storage medium, including instructions. When the instructions are executed on a computer, any of the embodiments of the first aspect, the second aspect, the third aspect, or the fourth aspect are caused to be executed by the computer.

[0048] From the above technical solutions it follows that the variants of the present application have the following advantages:

[0049] The AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device. The AMF node then stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the first access network device. This simplifies the operation procedure and reduces signaling overhead.

BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG. 1A is a schematic structural diagram of a 3rd generation partnership program network based on 5G communication technology according to one embodiment of the present application; 1B is a system architecture diagram of a data processing method according to one embodiment of the present application;

[0052] FIG. 2 is a schematic diagram of an embodiment of a data processing method according to one embodiment of the present application;

[0052] FIG. 3 is a schematic diagram of another embodiment of a data processing method according to one embodiment of the present application;

[0053] Figure 4 is a schematic diagram of another embodiment of a data processing method according to one embodiment of the present application;

[0054] Figure 5 is a schematic diagram of another embodiment of a data processing method according to one embodiment of the present application;

[0055] FIG. 6 is a schematic structural diagram of a data processing device according to one embodiment of the present application;

[0056] Figure 7 shows another schematic structural diagram of a data processing device according to one embodiment of the present application;

[0057] FIG. 8 is another schematic structural diagram of a data processing device according to one embodiment of the present application;

[0058] FIG. 9 is another schematic structural diagram of a data processing device according to one embodiment of the present application;

[0059] FIG. 10 is another schematic structural diagram of a data processing device according to one embodiment of the present application;

[0060] FIG. 11 is another schematic structural diagram of a data processing device according to one embodiment of the present application; And

[0062] FIG. 12 is a schematic diagram of a data processing system according to one embodiment of the present application.

Description of Embodiments

[0062] Embodiments of the present application provide a data processing method and a data processing apparatus for facilitating an operation procedure in which an AMF node delivers a QoS parameter to an access network device to which a terminal device requests a connection, or an access network target device to which a terminal device requests handover, and reduces signaling overhead.

[0063] FIG. 1A is a schematic block diagram of a 3rd generation partnership project (3GPP) network based on 5G communication technology. The network shown in FIG. 1A mainly includes a radio access network (RAN) device, an AMF node, a user plane function (UPF) node, a PCF node, a terminal device, and the like.

[0064] The RAN may be a network including a plurality of RAN devices and implement a radio physical layer function, resource scheduling and radio resource control, radio access control, a mobility management function, and the like. The RAN device is connected to the UPF node via the user plane interface N3 and is configured to transmit data of the terminal device. The RAN device establishes a control plane signaling connection with an AMF node over the N2 interface of the control plane in order to implement a function such as radio access bearer control.

[0065] The AMF node is mainly responsible for functions such as terminal device authentication, terminal device mobility management, network segment selection, and session management function (SMF) node selection.

[0066] The PCF node is primarily responsible for providing the policy rule to the network node.

[0067] A terminal device is also referred to as user equipment (user equipment (UE)), mobile station (mobile station (MS)), mobile terminal (mobile terminal (MT)) or the like, and is a device that provides connectivity for voice /data to the user, such as a portable device or a vehicle-mounted device that has a wireless connection function.

[0068] The UPF node serves as a protocol data unit (PDU) session connection anchor point and is responsible for data packet filtering, data transmission/forwarding, rate control, generation of charging information, and the like. user equipment.

[0069] The following describes the system architectural diagram of the embodiments of the present application based on Figv.

[0070] FIG. 1B is a system architecture diagram of a V2X network based on 5G communication technology. The network shown in Fig. 1B includes two communication interfaces: a PC5 interface and a Uu interface. Terminal device 1 communicates with terminal device 2 via PC5 interface. The terminal device 2 communicates with the RAN device via the Uu interface.

[0072] Further, as shown in FIG. 1B, the 5G core network mainly includes a PCF node, an AMF node, an SMF node, a UPF node, a unified data management (UDM) network element, a single a unified data repository (UDR), a network exposure function (NEF) network element, and an application function (AF) node.

[0072] The UDM network element mainly manages user data and manages user data, for example, manages subscription information, which may include: receiving subscription information from a UDR network element, and providing subscription information to another network element (for example, an AMF node), creating a 3GPP authentication credential for the terminal device, and registering and maintaining the network element currently serving the terminal device.

[0073] A UDR network element is generally configured to store user data. The user data may include subscription data called by the UDM network element, policy information called by the PCF node, structured data used to expose capabilities, and application data called by the NEF network element.

[0074] The NEF network element is used to connect and communicate between another internal network element of the core network and an external application server of the core network to provide information about the capabilities of the network characteristics to the external application server or to provide information about the external application server for the element of the core network.

[0075] The AF node has an application service function and communicates with the core network element to serve the terminal device, for example, communicates with the PCF node to manage service policy or communicates with the NEF network element to obtain network performance information or provides application information to the network or interacts with the PCF node to provide data access network point information to the PCF node, so that the PCF node generates routing information of the corresponding data service.

[0076] It should be noted that the data processing method in the embodiments of the present application may be applied to the communication network shown in Fig. 1A or Fig. 1B, may be applied to a 3G or 4G communication network, or may be applied to a future communication network, such as a 6G or 7G networks. In addition, the names of the above involved network elements are not limited, and may be replaced by names of network elements that have the same or similar functions in the future communication network. In this application, it is expressly not limited.

[0077] FIG. 2 is a schematic diagram of a data processing method according to one embodiment of the present application. As shown in Figure 2, the method includes the following steps.

[0078] 201: The AMF node receives the QoS parameter used for communication over the PC5 interface of the terminal device.

[0079] The QoS parameter is used for communication over the PC5 interface of the terminal device.

[0080] Communication over the PC5 interface may be communications performed by multiple (two or more) terminal devices over the PC5 interface.

[0082] In particular, the AMF node may receive the QoS parameter in the following ways:

[0082] First option: The AMF node receives a QoS parameter from the PCF node.

[0083] The PCF node may be a PCF node for V2X communication. The above method may further include the following: The AMF node selects for the terminal device, based on the subscription information of the terminal device, the PCF node for V2X communication.

[0084] Second option: The AMF node receives a QoS parameter from an access network device.

[0085] The access network device may be an access network device with which the terminal device is currently connected, or an access network device that serves the terminal device before the access network device with which the terminal device is currently connected serves the terminal device. .

[0086] 202: The AMF node stores the QoS parameter.

[0087] For example, the AMF node receives the QoS parameter on the N2 interface, and then the AMF node directly stores the QoS parameter. Alternatively, the AMF node receives N2 interface information, where the N2 interface information includes a QoS parameter; and the AMF node stores the N2 interface information. In this application, it is expressly not limited.

[0088] 203: When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device.

[0089] The first access network device may be an access network device to which the terminal device requests a connection, or an access network target device to which the terminal device requests a handover. The AMF node may directly send the QoS parameter to the first access network device over the N2 interface, or may send the N2 interface information to the first access network device, the N2 interface information including the QoS parameter. Here, it is not specifically limited.

[0090] There may be a plurality of pre-set conditions. In the following, examples are used to describe the pre-set conditions.

[0092] 1. The terminal device is in the idle state and the AMF node receives an N2 interface signaling connection setup request from the first access network device.

[0092] The N2 interface signaling connection setup request may be used to request the N2 interface signaling connection setup for the terminal device.

[0093] For example, the terminal device is in an idle state, and the terminal device sends a service request message or a registration request message to the AMF node via the RAN device. In an exemplary implementation, a service request message or a registration request message is included in a radio resource control setup complete message. The terminal device sends a radio resource control connection establishment completion message to the RAN device. Then, the RAN device sends an initial message (initial message) of the terminal device to the AMF node, while the initial message includes a service request message or a registration request message. In this case, the AMF node sends an initial context setup request to the RAN device, wherein the context setup request includes the QoS parameter used for communication over the PC5 interface of the terminal device.

[0094] For example, when a terminal device requests to establish a connection to a network, the AMF node sends a QoS parameter to the first access network device to which the terminal device requests a connection. To allow the AMF node to directly send the QoS parameter locally stored by the AMF node to the first access network device, when the AMF node receives an N2 interface signaling connection setup request from the first access network device, the AMF node sends the QoS parameter to the first access network device.

[0095] It should be noted that if the access network device to which the terminal device is connected is still the access network source device when the terminal device requests to establish a network connection, then the access network source device and the first access network device may be one and the same. the same access network device. The source access network device may be an access network device that serves the terminal device before the terminal device is connected to the first access network device. That is, the terminal device only disconnects the connection with the first access network device and then re-establishes the connection with the first access network device. If the terminal device requests to establish a connection to the network, then the connected access network device is the first access network device, that is, the first access network device with which the terminal device is currently connected, and the source access network device is not the same access network device . In particular, the actual connection state of the terminal device is used as a reference. The present application is applicable to all of the above connection scenarios. This is not specifically limited.

[0096] 2. The terminal device is in a connected state and the AMF node receives a terminal device handover request message from the access network source device, wherein the handover request message requests the handover of the terminal device from the access network source device to the access network target device.

[0097] The first access network device may be the target access network device of the terminal device, and the source access network device may be the access network device with which the terminal device is currently connected.

[0098] For example, when the terminal device is in a connected state and the terminal device service is handed over from the access network source device to the access network target device, the access network source device sends a handover request message to the AMF node. To allow the AMF node to directly send the QoS parameter stored by the AMF node to the target access network device, when the AMF node receives a terminal device handover request message from the source access network device, the AMF node sends the QoS parameter to the target access network device.

[00099] 3. The terminal device is in a connected state and the AMF node receives a path switch request message from the access network target device.

[00100] A path switch request message may be used to request a handoff of a terminal device from an access network source device to an access network target device, or a path switch request message may be used to request a switch of signaling connection N2 and a data plane path N3 of the terminal device from an access network source device to the target access network device.

[00102] The first access network device may be the target device of the access network of the terminal device.

[00102] For example, when the terminal device is in a connected state and the service of the terminal device is handed over to the target access network device, the target access network device sends a path switch request message to the AMF node. To allow the AMF node to directly send the QoS parameter stored by the AMF node to the target access network device, when the AMF node receives a terminal device path switch request message from the target access network device, the AMF node sends the QoS parameter to the target access network device.

[00103] 4. The terminal device is in a connected state, and the service of the terminal device has been successfully handed over from the source device of the access network of the terminal device to the target device of the access network.

[00104] For example, for handover N2, when the AMF node receives a handover complete message from the first access network device, the AMF node sends a QoS parameter to the first access network device, with the handover complete message indicating that the service of the terminal device is successful transmitted from the source access network device to the first access network device, and the first access network device is the target access network device to which the service of the terminal device is handed over. For handover over the Xn interface, when the AMF node sends a path switch request response message to the first access network device, the AMF node sends a QoS parameter to the first access network device by using N2 signaling, wherein the path switch request response message indicates that the transmission service on the Xn interface is completed. Optionally, signaling N2 may be a context modification request of the terminal device, and the first access network device is the target device of the access network to which the terminal device is handed over.

[00105] In this embodiment of the present application, the AMF node receives a QoS parameter used for communication over the PC5 interface of the terminal device, wherein the QoS parameter is notified to the access network device, and the QoS parameter is used for communication over the PC5 interface of the terminal device; and then the AMF node stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the first access network device. This simplifies the operation procedure and reduces signaling overhead.

[00106] Based on the example options in step 201 in FIG. 2, the AMF node may receive, in the first or second option, the QoS parameter used for communication over the PC5 interface of the terminal device. In order to allow the AMF node to maintain the QoS parameter after the AMF node receives the QoS parameter, this embodiment of the present application provides a variety of possible implementations, which are described below with examples.

[00107] First option: Based on the first option shown at step 201 in FIG. 2, there are two possible implementations in which the AMF node stores the QoS parameter.

[00108] Option 1: When the AMF node receives the N2 interface information sent by the PCF node, the AMF node stores the N2 interface information.

[00109] The N2 interface information includes a QoS parameter. For the specific implementation process of Option 1, see detailed descriptions of the embodiment shown in FIG.

[00110] Option 2: The AMF node receives the N2 interface information and the indication information that are sent by the PCF node, and the N2 interface information includes the QoS parameter.

[00112] The indication information may be used to direct the AMF node to store the N2 interface information.

[00112] For the specific implementation process of option 2, see detailed descriptions of the embodiment shown in FIG.

[00113] Second option: Based on the second option shown at step 201 in FIG. 2, when the AMF node receives the QoS parameter sent by the second access network device, the AMF node stores the QoS parameter.

[00114] The QoS parameter is used for communication over the PC5 interface of the terminal device, the second access network device is the access network device with which the terminal device is currently connected, or the access network device that serves the terminal device before the access network device with which the terminal device is connected. currently a terminal device serving the terminal device. For a specific implementation process, refer to the detailed description of the embodiment shown in FIG.

[00115] FIG. 3 is a schematic diagram of a data processing method according to one embodiment of the present application. The method includes the following steps.

[00116] 301: The AMF node selects for the terminal device based on the subscription information of the terminal device the PCF node for V2X communication.

[00117] For example, the terminal device sends a registration request message to the AMF node, wherein the registration request message contains the identifier of the terminal device and the V2X capability of the terminal device. The terminal device identifier can be a subscription concealed identifier (SUCI), a permanent subscription identifier (SUPI), or a 5G globally unique temporary identifier (5G GUTI). The AMF node obtains the subscription information of the terminal device based on the identifier of the terminal device, which is carried in the registration request message. The AMF node performs V2X authorization on the terminal device based on the subscription information of the terminal device and/or the V2X capability of the terminal device carried in the registration request message, where the V2X authorization indicates whether the terminal device is allowed to perform V2X communication service. The AMF node then selects a PCF node for the terminal device for V2X communications. The PCF node is configured to deliver the QoS parameter to the access network device, and the QoS parameter is used for communication over the PC5 interface between the terminal devices.

[00118] It should be noted that after the AMF node determines that the terminal device supports V2X communication, what the AMF node selects for the terminal device the PCF node for V2X communication may, in particular, be that the AMF node sends a request message to a network repository function (NRF) node, whereby the request message requests the PCF node that is used for V2X communication and serves the terminal device. The NRF node then returns a request response message to the AMF node, where the request response message carries information about the set of potentially suitable PCF nodes used for V2X communication. The AMF node selects one PCF node for the V2X communication for the terminal device from the set of potentially suitable PCF nodes used for V2X communication. Optionally, the AMF node selects from the set of potentially suitable PCF nodes the PCF node with the minimum current load as the terminal device PCF node.

[00119] 302: The AMF node marks the PCF node.

[00120] The AMF node marks the PCF node so that when the AMF node receives the N2 interface information sent by the PCF node, the AMF node can store the N2 interface information.

[00122] For example, when the AMF node receives the QoS parameter sent by the PCF node, the AMF node determines whether the preset condition is satisfied; and when the preset condition is satisfied, the AMF node sends the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests a handover.

[00122] For example, the AMF node sets a 1-bit (bit) flag (flag) for the selected PCF node for V2X communication, while "1" means that the N2 interface information from the PCF node should be stored, that is, step 305, and "0" indicates that the N2 interface information from the PCF node is not saved. When the AMF node receives the QoS parameter sent by the PCF node, the AMF node determines that the flag value is "1", and the AMF node stores the QoS parameter, and when the preset condition is satisfied, the AMF node sends the QoS parameter to the access network device to which the terminal the device is requesting a connection, or to the target access network device to which the terminal device is requesting a handoff.

[00123] Step 302 is an optional step, and the AMF node may not perform step 302, that is, it may perform step 303 directly.

[00124] 303: The PCF node receives the QoS parameter used for communication over the PC5 interface of the terminal device.

[00125] Optionally, the PCF node stores the QoS parameter used for communication over the PC5 interface of the terminal device; the PCF node receives from the UDR network element the QoS parameter used for communication over the PC5 interface of the terminal device; or the PCF node generates, based on the information provided by the application server, the QoS parameter used for communication over the PC5 interface of the terminal device.

[00126] 304: The PCF node sends N2 interface information to the AMF node.

[00127] The N2 interface information carries the QoS parameter used for communication over the PC5 interface of the terminal device.

[00128] For example, the AMF node establishes an N11 interface connection with the PCF node for the terminal device; and then the PCF node sends the N2 interface information to the AMF node, the N2 interface information carrying the QoS parameter used for communication over the PC5 interface of the terminal device.

[00129] 305: The AMF node stores N2 interface information.

[00130] The N2 interface information includes a QoS parameter used for communication over the PC5 interface of the terminal device.

[00132] Optionally, after the AMF node receives the N2 interface information sent by the PCF node, the AMF node determines that the flag value is "1" and the AMF node stores the N2 interface information.

[00132] 306: When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device.

[00133] For information about the preset condition, see the corresponding descriptions in the embodiment shown in Fig.2. Details are not repeated.

[00134] Optionally, the AMF node sends to the first access network device the N2 interface information stored in step 305, the N2 interface information including the QoS parameter.

[00135] In this embodiment of the present application, the AMF node receives a QoS parameter from the PCF node for V2X communication, the QoS parameter is notified to the access network device, and the QoS parameter is used for communication over the PC5 interface of the terminal device; and then the AMF node stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the first access network device. This simplifies the operation procedure and reduces signaling overhead.

[00136] FIG. 4 is a schematic diagram of a data processing method according to one embodiment of the present application. The method includes the following steps.

[00137] 401: The PCF node receives the QoS parameter used for communication over the PC5 interface of the terminal device.

[00138] Step 401 is similar to step 303 in FIG. Details are not described here again.

[00139] 402: The AMF node receives N2 interface information and indication information that are sent by the PCF node.

[00140] N2 interface information and indication information are two independent pieces of information. The two pieces of information may be sent in the same message, or may be sent using different messages. It's not limited.

[00142] The PCF node may be a PCF node for V2X communication.

[00142] Accordingly, the above method may further include: The AMF node selects for the terminal device, based on the terminal device's subscription information, the PCF node for V2X communication.

[00143] For example, an AMF node establishes an N11 interface connection with a PCF node for a terminal device; and the PCF node sends the N2 interface information and the indication information to the AMF node.

[00144] The N2 interface information carries the QoS parameter, and the QoS parameter may be used by the access network device to determine the QoS parameter used for communication over the PC5 interface of the terminal device.

[00145] The indication information instructs the AMF node to store the N2 interface information, or the indication information instructs the AMF node to store the QoS parameter.

[00146] Optionally, the indication information is further used to direct the AMF node to send the QoS parameter to the access network target device of the terminal device when a predetermined condition is satisfied.

[00147] The target access network device may be the access network device to which the terminal device is requesting a connection or handover.

[00148] 403: The AMF node stores the QoS parameter based on the indication information.

[00149] For example, the AMF node parses (parses) the indication information, and then stores the QoS parameter.

[00150] 404: When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device.

[00152] Optionally, when the AMF node receives the N2 interface information and the indication information that are sent by the PCF node, the AMF node stores the N2 interface information based on the indication information. The AMF node then determines whether the predetermined condition is satisfied. When the preset condition is satisfied, the AMF node sends the N2 interface information to the first access network device, the N2 interface information including the QoS parameter. Step 404 is similar to step 203 in FIG. Refer to the detailed description of step 203 in FIG. 2 for details. Details are not described here again.

[00152] In this embodiment of the present application, the AMF node receives N2 interface information and indication information from the PCF node for V2X communication, the N2 interface information carries the QoS parameter used for PC5 communication of the terminal device, the QoS parameter is notified to the access network device, and the QoS parameter is used for communication over the PC5 interface of the terminal apparatus, and the indication information instructs the AMF node to store the N2 interface information, or the indication information instructs the AMF node to store the QoS parameter. Then, the AMF node stores the N2 interface information based on the indication information, that is, stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the first access network device. This simplifies the operation procedure and reduces signaling overhead.

[00153] The present application further provides an embodiment. The implementation process of this embodiment is similar to the implementation process shown in FIG. 4, with the difference being steps 402 and 403. Step 402 can be replaced by the following: The PCF node sends the N2 interface information to the AMF node, the N2 interface information includes the parameter The QoS used for communication over the PC5 interface of the terminal device and the indication information and the indication information instructs the AMF node to store the N2 interface information. Step 403 can be replaced with the following: The AMF node stores the QoS parameter based on the indication information in the N2 interface information. The indication information may be a field in the header of the N2 interface information packet, and this field indicates to the AMF node to store the QoS parameter. Alternatively, the indication information is an N2 interface information message type, for example, the message type is a V2X type, a QoS type, or a V2X QoS type.

[00154] FIG. 5 is a schematic diagram of a data processing method according to one embodiment of the present application. The second access network device may be the first access network device or may be an access network device that serves the terminal device before the first access network device serves the terminal device. For example, when the service of the terminal device is handed over from the second access network device to the first access network device, the second access network device is an access network device that serves the terminal device before the first access network device serves the terminal device. When a terminal device requests a connection with a first access network device, and the second access network device that serves the terminal device before the first access network device serves the terminal device is also the first access network device, the first access network device and the second access network device - it is the same access network device. Referring to Figure 5, the method includes the following steps.

[00155] 501: The AMF node sends N2 interface information to the second access network device.

[00156] The N2 interface information carries the QoS parameter used for communication over the PC5 interface of the terminal device.

[00157] For example, after the terminal device establishes a connection with the network in which the second access network device resides, the AMF node establishes an N11 interface connection with the PCF node for the terminal device, and the PCF node sends the N2 interface information to the second access network device via AMF node.

[00158] 502: The second access network device sends a context release request to the AMF node.

[00159] The context release request requests the release of a terminal device context.

[00160] For example, the second access network device initiates a release of the terminal device context, that is, the second access network device sends a context release request to the AMF node. The fact that the second access network device initiates the release of the terminal device context may be that the second access network device does not detect within a given timer time that the terminal device is communicating with the network, or the second access network device determines that it cannot establish a radio link between the terminal device and the second access network device, and so on.

[00162] It should be noted that the release of the terminal device context may alternatively be that the AMF node actively initiates the operation of the trigger. In this application, this is not particularly limited. If the AMF node is actively initiating the trigger, the AMF node does not execute step 502, but directly executes step 503.

[00162] 503: The AMF node sends a context release command to the second access network device.

[00163] For example, after the AMF node receives a context release request, the AMF node sends a context release command to the second access network device.

[00164] The context release command instructs the second access network device to release the terminal device context.

[00165] 504: The second access network device releases the terminal device context based on the context release command.

[00166] For example, the second access network device deletes the terminal device context that is stored by the second access network device. If the second access network device still has an RRC signaling connection with the terminal device upon receiving the context release command, the second access network device releases the RRC signaling connection with the terminal device, that is, the second access network device sends an RRC connection release message to the terminal device.

[00167] 505: The second access network device sends a context release complete message to the AMF node.

[00168] For example, after completion of the context release of the terminal device, the second access network device sends a context release complete message to the AMF node, wherein the context release complete message carries the QoS parameter used for communication over the PC5 interface of the terminal device.

[00169] 506: The AMF node stores the QoS parameter.

[00170] For example, when the AMF node receives the context release complete message sent by the second access network device, the AMF node stores the QoS parameter in the context release complete message, i.e., stores the QoS parameter.

[00172] 507: When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device.

[00172] Step 507 is similar to step 203 in FIG. Refer to the detailed description of step 203 in FIG. 2 for details. Details are not described here again.

[00173] In this embodiment of the present application, the AMF node receives N2 interface information from the second access network device, wherein the N2 interface information carries a QoS parameter used for PC5 interface communication of the terminal device; and then the AMF node stores the N2 interface information, that is, stores the QoS parameter. When the preset condition is satisfied, the AMF node sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the AMF node does not need to request the QoS parameter again. at the PCF node. Instead, the AMF node delivers the QoS parameter held by the AMF node to the first access network device. This simplifies the operation procedure and reduces signaling overhead.

[00174] Fig. 5 simply shows an embodiment in which, in the process of releasing the terminal device from the second access network device, the terminal device sends a QoS parameter to the AMF node by using the release completion message sent by the second access network device to the AMF node and then the AMF node saves the QoS setting. The present application further provides an embodiment. The specific implementation process of this embodiment is similar to the implementation process of the embodiment shown in Fig. 5, and the difference is as follows:

[00175] Step 501a is added between steps 501 and 502: The second access network device sends a QoS parameter to the AMF node, the QoS parameter is used for PC5 interface communication between terminal devices. For example, the second access network device sends signaling to the AMF node, wherein the signaling includes the QoS parameter, so that the AMF node stores the QoS parameter.

[00176] Step 505 can be replaced with 505a: The second access network device sends a context release complete message to the AMF node, where the context release complete message does not carry a QoS parameter.

[00177] Step 506 can be replaced with 506a: The AMF node stores the QoS parameter sent by the second access network device.

[00178] It should be noted that there is no fixed execution sequence among steps 506a, 502, and 504 in FIG. 5 and step 505a. Alternative step 506a may be performed first, or steps 502a through 504 and step 505a may be performed first. Alternatively, step 506a, steps 502-504, and step 505a are performed simultaneously, depending on the situation. In this application, this is not particularly limited.

[00179] The data processing device provided in the embodiments of the present application is described below. Fig. 6 shows an embodiment of the data processing apparatus in the embodiments of the present application. The data processing device may be an AMF node, a chip, or a chip system located in the AMF node. The data processing device may be configured to perform the steps performed by the AMF node in the embodiments shown in FIG. 2, FIG. 3, FIG. 4, and FIG. 5. For details, refer to the respective descriptions in the above method embodiments.

[00180] The data processing device includes a transceiver module 601 and a processing module 602.

[00182] The transceiver module 601 is configured to receive the QoS parameter used for communication over the PC5 interface of the terminal device.

[00182] The processing module 602 is configured to store the QoS parameter.

[00183] The transceiver module 601 is configured to: when the preset condition is satisfied, send the stored QoS parameter to the first access network device.

[00184] In an exemplary implementation, the preset condition includes the following:

the terminal device is in the idle state, and the transceiver module 601 receives the N2 interface signaling connection setup request from the first access network device, the N2 interface signaling connection setup request requests the N2 interface signaling connection setup for the terminal device.

[00185] In another possible implementation, the first access network device is the target device of the access network of the terminal device; and the pre-set condition includes the following:

the terminal device is in a connected state, and the transceiver module 601 receives a handover request message of the terminal device from the access network source device, wherein the handover request message requests handover of the terminal device from the access network source device to the access network target device;

the terminal device is in a connected state, and the transceiver module 601 receives a path switch request from the access network target device, wherein the path switch request requests the terminal device to transfer from the source access network device to the target access network device, or the path switch request requests switching of the N2 signaling connection, and data plane path N3 of the terminal device from the source device of the access network to the target device of the access network; or

the terminal device is in a connected state, and the service of the terminal device has been successfully handed over from the source device of the access network of the terminal device to the target device of the access network.

[00186] In another possible implementation, the transceiver module 601 is specifically configured to:

receive N2 interface information from the PCF node for V2X communication, wherein the N2 interface information includes a QoS parameter.

[00187] The processing module 602 is specifically configured to:

when the transceiver module 601 determines that the N2 interface information is from the PCF node for V2X communication, store the N2 interface information.

[00188] In another possible implementation, the processing module 602 is further configured to:

select, for the terminal device, based on the subscription information of the terminal device, a PCF node for vehicle-to-everything (V2X) communication.

[00189] In another possible implementation, the transceiver module 601 is specifically configured to:

receive N2 interface information and indication information from the PCF node, wherein the N2 interface information includes a QoS parameter, and the indication information instructs the AMF node to store the N2 interface information, or the indication information instructs the AMF node to store the QoS parameter.

[00190] The processing module 602 is specifically configured to:

store the QoS parameter based on the indication information.

[00192] In another possible implementation, the transceiver module 601 is specifically configured to:

receive N2 interface information from the PCF node, wherein the N2 interface information includes a QoS parameter and indication information used to direct the data processing device to store the N2 interface information, or the indication information instructs the data processing device to store the QoS parameter.

[00192] The processing module 602 is specifically configured to:

store the QoS parameter based on the indication information.

[00193] In another possible implementation, the transceiver module 601 is specifically configured to:

receive the QoS parameter from the second access network device.

[00194] The second access network device is the first access network device or the access network device that serves the terminal device before the first access network device serves the terminal device, and the QoS parameter is the QoS parameter in the N2 interface information received by the second access network device from PCF node.

[00195] In another possible implementation, the transceiver module 601 is further configured to:

send a context release command to the second access network device.

[00196] The transceiver module 601 is specifically configured to:

receive a context release complete message from the second access network device, wherein the context release complete message carries a QoS parameter.

[00197] In another exemplary implementation, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests handover.

[00198] In this embodiment of the present application, the transceiver module 601 receives the QoS parameter used for communication over the PC5 interface of the terminal device; and then the processing unit 602 stores the QoS parameter. When the preset condition is satisfied, the transceiver module 601 sends the QoS parameter to the first access network device. Therefore, when the terminal device is in the idle state and requests to establish a connection with the first access network device, or when the terminal device is in the connected state and requests handover from the current access network device to the first access network device, the processing unit 602 does not need to re-request the parameter QoS at the PCF node. Instead, the transceiver module 601 delivers the stored QoS parameter to the access network device to which the terminal device requests a connection or handover. This simplifies the operation procedure and reduces signaling overhead.

[00199] The data processing device provided in the embodiments of the present application is described below. Fig. 7 shows an embodiment of the data processing apparatus in the embodiments of the present application. The data processing device may be a PCF node, a chip, or a chip system located in the PCF node. The data processing device may be configured to perform the steps performed by the PCF node in the embodiments shown in FIG. 3 and FIG. 4. For details, refer to the respective descriptions in the above method embodiments.

[00200] The data processing device includes a transceiver module 701.

[00202] The transceiver module 701 is configured to obtain the QoS parameter used for communication over the PC5 interface of the terminal device.

[00202] The transceiver module 701 is configured to send N2 interface information and indication information to the AMF node, wherein the N2 interface information includes the QoS parameter, and the indication information instructs the AMF node to store the QoS parameter, or the indication information instructs the AMF node to store the interface information N2.

[00203] In this embodiment, the transceiver module 701 sends the N2 interface information and indication information to the AMF node, and the N2 interface information includes the QoS parameter. The indication information instructs the AMF node to store the N2 interface information so that the AMF node stores the QoS parameter.

[00204] In another exemplary implementation, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests handover.

[00205] Embodiments of the present application further provide another data processing device. In an embodiment of the data processing device in the embodiments of the present application, the data processing device may be a PCF node, or a chip, or a chip system located in the PCF node. The data processing device may be configured to perform the steps performed by the PCF node in the embodiments shown in FIG. 3 and FIG. 4. For details, refer to the respective descriptions in the above method embodiments.

[00206] The data processing device includes a transceiver module 701.

[00207] The transceiver module 701 is configured to obtain the QoS parameter used for communication over the PC5 interface of the terminal device.

[00208] The transceiver module 701 is configured to send N2 interface information to the AMF node, where the N2 interface information includes a QoS parameter and indication information for instructing the AMF node to store the N2 interface information.

[00209] In this embodiment, the transceiver module 701 sends the N2 interface information to the AMF node, the N2 interface information includes a QoS parameter, and the N2 interface information includes indication information for instructing the AMF node to store the N2 interface information, or indication information tells the AMF node to keep the QoS setting. In this embodiment of the present application, the indication information carried in the N2 interface information instructs the AMF node to store the N2 interface information, so that the AMF node stores the QoS parameter.

[00210] In another exemplary implementation, the indication information is further used to direct the AMF node to send, when the predetermined condition is satisfied, the QoS parameter to the access network device to which the terminal device requests a connection, or to the target access network device to which the terminal device requests handover.

[00212] The data processing device provided in the embodiments of the present application is described below. In the embodiment of the data processing device in the embodiments of the present application, the data processing device may be an access network device, or a microchip or microchip system located in the access network device. The data processing device may be configured to perform the steps performed by the first access network device in the embodiment shown in FIG. For details, refer to the respective descriptions in the above method embodiments.

[00212] The data processing device includes a transceiver module 801. Optionally, the data processing device further includes a processing module 802.

[00213] The transceiver module 801 is configured to receive N2 interface information from the PCF node, wherein the N2 interface information includes a QoS parameter used for PC5 interface communication of the terminal device.

[00214] The transceiver module 801 is configured to send the QoS parameter to the AMF node.

[00215] In this embodiment, the transceiver module 801 sends the QoS parameter to the AMF node. When the AMF node receives the QoS parameter sent by the transceiver module 801, the AMF node stores the QoS parameter, thereby realizing the storage of the QoS parameter.

[00216] In an exemplary embodiment, the transceiver module 801 is further configured to:

receive a context release command from the AMF node.

[00217] The data processing device further includes a processing module 802. Processing module 802 is configured to:

release the terminal device context based on the release context command.

[00218] The transceiver module 801 is specifically configured to:

send a context release complete message to the AMF node, wherein the context release complete message contains a QoS parameter, and the context release complete message is used by the AMF node to store the QoS parameter.

[00219] The present application further provides a data processing device 900. Figure 9 shows an embodiment of the data processing apparatus in the embodiments of the present application. The data processing device may be an AMF node, a chip, or a chip system located in the AMF node. The data processing device may be configured to perform the steps performed by the AMF node in the embodiments shown in FIG. 2, FIG. 3, FIG. 4, and FIG. 5. For details, refer to the respective descriptions in the above method embodiments.

[00220] The data processing device 900 includes a processor 901, a memory 902, an input/output device 903, and a bus 904.

[00222] In an exemplary embodiment, processor 901, memory 902, and I/O device 903 are individually connected to bus 904, and the memory stores computer instructions.

[00222] The processing unit 602 in the above embodiment may be specifically the processor 901 in this embodiment. Therefore, the specific implementation of the processor 901 is again not described. The transceiver module 601 in the above embodiment may be specifically the input/output device 903 in this embodiment.

[00223] The present application further provides a data processing device 1000. Figure 10 shows an embodiment of the data processing device in embodiments of the present application. The data processing device may be a PCF node, a chip, or a chip system located in the PCF node. The data processing device may be configured to perform the steps performed by the PCF node in the embodiments shown in FIG. 3 and FIG. 4. For details, refer to the respective descriptions in the above method embodiments.

[00224] The data processing device 1000 includes a processor 1001, a memory 1002, an input/output device 1003, and a bus 1004.

[00225] In an exemplary embodiment, processor 1001, memory 1002, and I/O device 1003 are individually connected to bus 1004, and the memory stores computer instructions.

[00226] The transceiver module 701 in the above embodiments may be specifically the input/output device 1003 in this embodiment. Therefore, the specific implementation of the input/output device 1003 will not be described again.

[00227] The present application further provides a data processing device 1100. Fig. 11 shows an embodiment of a data processing device in embodiments of the present application. The data processing device may be an access network device, a chip, or a chip system located in the access network device. The data processing device may be configured to perform the steps performed by the first access network device in the embodiment shown in FIG. For details, refer to the respective descriptions in the above method embodiments.

[00228] The data processing device 1100 includes a processor 1101, a memory 1102, an input/output device 1103, and a bus 1104.

[00229] In an exemplary embodiment, processor 1101, memory 1102, and I/O device 1103 are individually connected to bus 1104, and the memory stores computer instructions.

[00230] The processing unit 802 in the above embodiment may be specifically the processor 1101 in this embodiment. Therefore, the specific implementation of the processor 1101 is again not described. The transceiver module 801 in the above embodiment may be specifically the input/output device 1103 in this embodiment.

[00232] Referring to FIG. 12, an embodiment of the present application further provides a data processing system. The data processing system includes a data processing device. Specifically, the data processing apparatus may include a PCF node shown in FIG. 6, a PCF node shown in FIG. 7, and an access network device shown in FIG. The AMF node may be configured to perform all or some of the steps performed by the AMF node in the embodiments shown in Figure 2, Figure 3, Figure 4, and Figure 5, the PCF node may be configured to perform all or some of the steps performed by the PCF node in the embodiments shown in FIG. 3 and FIG. 4, and the access network device may be configured to perform all or some of the steps performed by the first access network device in the embodiment shown in FIG. 5.

[00232] Those skilled in the art may appreciate that, for convenience and conciseness, the detailed operating processes of the aforementioned system, apparatus, and unit refer to the corresponding processes in the aforementioned method embodiments. Details are not described here again.

[00233] In another possible implementation, when the AMF node, PCF node, or access network device is a chip in the terminal, the chip includes a processing unit and a communication unit. The processing unit may be, for example, a processor. The communication unit may be, for example, an I/O interface, a pin, or a circuit. The processing unit may execute computer-executable instructions stored in the storage unit to enable a chip in the terminal to execute the data processing method according to any of the first aspect, the second aspect, the third aspect, or the fourth aspect. Optionally, a storage unit is a storage unit on a chip, such as a register or buffer. Alternatively, the storage unit may be a storage unit in the terminal but off-chip, such as read-only memory (ROM), another type of static storage device that can store static information and instructions, or a random access memory device. (random access memory (RAM)).

[00234] The processor mentioned above may be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the software execution of a data processing method in the first aspect.

[00235] All or some of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or some of the embodiments may be implemented in the form of a computer program product.

[00236] The computer program product includes one or more computer instructions. When computer program instructions are downloaded and executed on a computer, procedures or functions according to embodiments of the present invention are generated in whole or in part. The computer may be a general purpose computer, a specialized computer, a network of computers, or other programmable devices. The computer instructions may be stored on a computer-readable storage medium or may be transferred from a computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center over a wired (for example, coaxial cable, optical fiber, or digital subscriber line (DSL) )) or wirelessly (eg infrared, radio or microwave). A computer-readable medium can be any usable medium accessible to a computer, or a data storage device, such as a server or data center, that combines one or more usable media. The media used may be magnetic media (eg, floppy disk, hard disk, or magnetic tape), optical media (eg, DVD), semiconductor media (eg, Solid State Disk (SSD)) or the like.

[00237] In several embodiments presented in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are examples only. For example, block division is only a logical division of functions, and may be another division during actual execution. For example, many blocks or components may be combined or integrated into another system, or certain functions may be ignored or not performed. In addition, the interconnections displayed or discussed or direct links or communication connections may be implemented through some interfaces. Indirect connections or communication connections between devices or units may be implemented in electrical, mechanical or other forms.

[00238] Blocks described as separate parts may or may not be physically separate, and parts displayed as blocks may or may not be physical blocks, in other words, may be located in one position or may be distributed over a plurality of network blocks. Some or all of the blocks may be selected according to actual requirements to achieve the goals of the solutions of the embodiments.

[00239] In addition, the functional blocks in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units are integrated into one unit. An integrated block may be implemented in hardware or may be implemented in a software function block.

[00240] When an integrated block is implemented in the form of a software functional block and sold or used as a standalone product, the integrated block may be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of the present application per se, or part of it, contributing to the conventional technology, or all or some of the technical solutions can be implemented in the form of a software product. The computer program product is stored on a storage medium and includes several instructions for directing a computing device (which may be a personal computer, a server, a network device, etc.) to perform all or some of the steps of the methods described in embodiments of the present application. The aforementioned storage medium includes: any medium that can store program code, such as a USB flash drive, removable hard disk, read-only memory (ROM), Random Access Memory ( RAM), magnetic disk or optical disk.

[00242] In conclusion, the above embodiments are merely intended to describe the technical solutions of the present application, and not to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may still make changes to the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of their specifications. These modifications or replacements do not lead to a departure from the essence of the respective technical solutions from the essence and scope of the technical solutions of the embodiments of the present application.

Claims (27)

1. A data processing method characterized by the fact that it contains the steps in which: receiving (201) through the access and mobility control function node the N2 interface information from the policy control function node for the vehicle-to-everything (V2X) communication, the N2 interface information containing indication information and a quality of service (QoS) parameter used for communicating over a ProSe 5 communication interface (PC5) of the terminal device, wherein the indication information is a message type of the N2 interface information; storing (202) by the access and mobility control function node based on the indication information the N2 interface information; And when the preset condition is satisfied, the N2 interface information is sent (203) by the access and mobility control function node to the first access network device. 2. The method of claim 1, wherein the predetermined condition is that the terminal device is in an idle state and the access and mobility control function node receives an N2 interface signaling connection setup request from the first access network device, wherein the interface signaling connection setup request N2 requests the establishment of an N2 interface signaling connection for the terminal device. 3. The method of claim 1, wherein the first access network device is the access network target device of the terminal device, and the predetermined condition is that: the terminal device is in a connected state and the access and mobility control function node receives a handover request message from the access network source device, wherein the handover request message requests handover of the terminal device from the access network source device to the access network target device; or the terminal device is in a connected state and the access and mobility control function node receives a path switch request message from the access network target device, wherein the path switch request message requests switching of the signaling connection N2 and the data plane path N3 of the terminal device from the source device of the access network to the target device access networks. 4. The method according to any one of claims 1 to 3, wherein before the access and mobility control function node receives the N2 interface information from the policy control function node for vehicle-to-everything (V2X) communication, the method further comprises: selecting, by means of the access and mobility management function node for the terminal device, based on the subscription information of the terminal device, the policy management function node for V2X communication. 5. The method according to any one of claims 1 to 4, wherein the message type is a V2X QoS type. 6. The method according to any one of claims 1 to 5, wherein the indication information is a field in the header of the N2 interface information packet. 7. A data processing device comprising a processor and a computer-readable storage medium storing executable instructions that are executed by the processor to perform the method according to any one of claims 1-6. 8. A data processing system comprising an access and mobility control function node and a policy management function node, wherein the access and mobility control function node is configured to implement the method according to any one of claims 1-6, and the policy control function node is configured to send N2 interface information to the access and mobility control function node. 9. Method of data processing, characterized in that it contains the steps in which: sending, by means of the policy control function node for vehicle-to-everything (V2X) communication, N2 interface information to the access and mobility control function node, wherein the N2 interface information contains indication information and a Quality of Service (QoS) parameter used for communication over the interface communication ProSe 5 (PC5) terminal device, and the indication information is a type of message information interface N2; receiving (201) through the access and mobility control function node N2 interface information; storing (202) by the access and mobility control function node based on the indication information the N2 interface information; And when the preset condition is satisfied, the N2 interface information is sent (203) by the access and mobility control function node to the first access network device. 10. The method of claim 9, wherein the preset condition is that the terminal device is in an idle state and the access and mobility control function node receives an N2 interface signaling connection setup request from the first access network device, wherein the interface signaling connection setup request N2 requests the establishment of an N2 interface signaling connection for the terminal device. 11. The method of claim 9, wherein the first access network device is the target access network device of the terminal device, and the predetermined condition is that: the terminal device is in a connected state and the access and mobility control function node receives a handover request message from the access network source device, wherein the handover request message requests handover of the terminal device from the access network source device to the access network target device; or the terminal device is in a connected state and the access and mobility control function node receives a path switch request message from the access network target device, wherein the path switch request message requests switching of the signaling connection N2 and the data plane path N3 of the terminal device from the source device of the access network to the target device access networks. 12. The method according to any one of claims 9-11, wherein the message type is a V2X QoS type. 13. The method according to any one of claims 9 to 12, wherein the indication information is a field in the header of the N2 interface information packet. 14. A computer-readable storage medium containing instructions, wherein, when the instructions are executed in the computer, the computer executes the method according to any one of claims 1-6.

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