Communication connection method and device

Abstract

The embodiment of the invention provides a communication connection method and a communication connection device, which are used for realizing that one terminal establishes connection with a plurality of access network devices at the same time so as to improve the communication connection reliability of the terminal device. According to the method, the air interface capability of the terminal and the first air interface capability of the terminal are obtained through the access and mobility management device, the first air interface capability of the terminal is a subset of the air interface capability of the terminal, and the terminal is connected to the access and mobility management function device through the first access network device. After acquiring the working mode information of the terminal, the access and mobility management function equipment sends the air interface capability of the terminal or the first air interface capability of the terminal to the first access network equipment according to the working mode information of the terminal; and enabling the first access network equipment to perform air interface configuration with the terminal according to the first air interface capability of the terminal or the air interface capability of the terminal. The situation that air interface resources cannot be reasonably configured when the terminal is connected with a plurality of access network devices at the same time is avoided, and the communication connection reliability of the terminal is improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and in particular, to a method and apparatus for communication connection. Background Art

[0002] In wireless communication technology, when a terminal accesses a network, it needs to report terminal capability information to the network. The network can configure the terminal according to the terminal capability information and coordinate the signaling message transfer mode between the terminal and the base station. For example, the terminal reports its UE Radio Capability information to the access and mobility management function (AMF). Since the UE Radio Capability information has a large capacity and is required every time the terminal switches from the idle state to the connected state, to reduce the repeated transmission cost of the UE Radio Capability information, the AMF stores the UE Radio Capability information of the terminal after obtaining it. When the terminal changes from the idle state to the connected state, it connects to the AMF through the radio access network (RAN). The AMF sends the UE Radio Capability information of the terminal to the RAN, and the RAN reasonably configures the radio resources of the terminal using the UE Radio Capability information of the terminal to achieve a wireless connection between the terminal and the RAN.

[0003] In a scenario where a terminal is simultaneously connected to two RANs, the terminal establishes wireless connections with the two RANs respectively, and the UE Radio Capability is shared by the two RANs. How to reasonably configure the radio resources of the terminal by the two RANs respectively is an urgent problem to be solved. Summary of the Invention

[0004] Embodiments of this application provide a method and apparatus for communication connection, which are used to enable a terminal to establish connections with multiple RAN devices simultaneously to improve the communication connection reliability of the terminal device.

[0005] One aspect of this application provides a method for communication connection, including:

[0006] Preset the AMF to obtain the radio capability of the preset UE of the terminal and the first radio capability of the preset UE. The first radio capability of the preset UE is a subset of the radio capability of the preset UE. The preset UE is connected to the preset AMF through the first RAN;

[0007] Preset the AMF to obtain the working mode information of the preset UE. The working mode information of the preset UE indicates the number of RANs connected to the preset UE;

[0008] The preset AMF sends the radio access capabilities of the preset UE, or the first radio access capabilities of the preset UE, to the first RAN according to the working mode information of the preset UE, so that the first RAN performs radio access configuration with the preset UE according to the first radio access capabilities of the preset UE, or the radio access capabilities of the UE.

[0009] In the embodiments of the present application, the AMF obtains the radio access capabilities of the terminal and the first radio access capabilities of the terminal. Among them, the first radio access capabilities of the terminal are a subset of the radio access capabilities of the terminal. The terminal can be connected to the AMF through the first RAN. After the AMF obtains the working mode information of the terminal, it sends the radio access capabilities of the terminal or the first radio access capabilities of the terminal to the first RAN according to the number of RANs connected to the terminal indicated by the working mode information of the terminal, so that the first RAN performs radio access configuration with the terminal according to the first radio access capabilities of the terminal or the radio access capabilities of the terminal. This avoids the situation where the radio access resources cannot be reasonably configured when the terminal is connected to multiple RANs at the same time, provides the possibility for the terminal to be connected to multiple RANs for data transmission at the same time, and improves the reliability of the communication connection of the terminal.

[0010] In a possible implementation manner of the first aspect, the preset AMF sends the radio access capabilities of the preset UE, or the first radio access capabilities of the preset UE, to the first RAN according to the working mode information of the preset UE, including:

[0011] When the working mode information indicates that the preset UE is connected to two RANs, the preset AMF sends the first radio access capabilities of the preset UE to the first RAN according to the working mode information;

[0012] When the working mode information indicates that the preset UE is connected to one RAN, the preset AMF sends the radio access capabilities of the preset UE to the first RAN according to the working mode information.

[0013] In the embodiments of the present application, when the working mode information indicates that the preset UE is connected to two RANs, the preset AMF sends the first radio access capabilities of the preset UE to the first RAN. When the working mode information indicates that the preset UE is connected to one RAN, the preset AMF sends the radio access capabilities of the preset UE to the first RAN. It flexibly sends different radio access capabilities to the first RAN according to the different numbers of RANs connected to the preset UE, so that the first RAN can reasonably perform radio access configuration with the preset UE according to the radio access capabilities, improving the flexibility and feasibility of the solution.

[0014] In a possible implementation manner of the first aspect, the working mode information includes single-connection mode information or dual-connection mode information. The single-connection mode information indicates that the preset UE is connected to one RAN, and the dual-connection mode information indicates that the preset UE is connected to two RANs;

[0015] The preset AMF obtains the working mode information of the preset UE, including:

[0016] The preset AMF obtains the single-connection mode information or dual-connection mode information sent by the preset UE.

[0017] In the embodiment of the present application, the preset AMF uses the single-connection mode information and the dual-connection mode information to determine the number of RANs to which the preset UE is connected, and further determines the radio access capability processing method according to the number of RANs to which the preset UE is connected, which helps to accurately allocate the accurate radio access capability to the RAN according to the actual connection situation of the preset UE, so as to realize the flexible switching between the single-RAN connection and the multi-RAN connection of the preset UE, and improve the flexibility of the solution while ensuring the accuracy of the solution.

[0018] In a possible implementation manner of the first aspect, the first radio access capability of the preset UE is a radio access capability set generated by the first device according to the radio access capability of the preset UE, and the first device is the preset AMF, the preset UE or the first RAN.

[0019] In the embodiment of the present application, the first radio access capability of the preset UE may be the radio access capability generated by the preset AMF, the preset UE or the first RAN. Multiple nodes can generate the first radio access capability of the preset UE, which improves the flexibility of the solution implementation.

[0020] In a possible implementation manner of the first aspect, the method further includes:

[0021] The preset AMF obtains the second radio access capability of the preset UE. The second radio access capability of the preset UE is a subset of the radio access capability of the preset UE. The preset UE is connected to the preset AMF through the second RAN;

[0022] When the working mode information indicates that the preset UE is connected to two RANs, the preset AMF also sends the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0023] In the embodiment of the present application, when the preset UE is connected to two RANs and the preset AMF manages the connections between the two RANs and the preset UE at the same time, the preset AMF also obtains the second radio access capability of the preset UE and sends the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE. Among them, the preset UE is connected to the preset AMF through the second RAN, which solves the problem of the radio access capability transmission and configuration related to the second RAN when the preset AMF manages the connections between the two RANs and the preset UE at the same time, and improves the integrity of the solution.

[0024] In a possible implementation manner of the first aspect, the preset AMF obtains the working mode information of the preset UE, including:

[0025] When a preset UE is connected to a preset AMF through a first RAN and a second RAN respectively, the AMF generates working mode information of the preset UE, and the working mode information of the preset UE indicates that the preset UE is connected to two RANs.

[0026] In the embodiments of the present application, the manner in which the preset AMF obtains the working mode information of the preset UE includes that the AMF generates the working mode information of the preset UE according to the connection state between the preset UE and the RAN. The working mode information of the preset UE can be obtained in various ways, which improves the flexibility of the implementation of the solution.

[0027] In a possible implementation manner of the first aspect, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of a first radio access technology (RAT) type, and the RAT type of the first RAN is the first RAT type.

[0028] In the embodiments of the present application, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the first RAT type. When the preset UE is connected to the first RAN, the first radio access capability of the preset UE is used, that is, the RAT type of the first RAN is the first RAT type. By storing and using the radio access capabilities of the preset UE according to the RAT type of the RAN, the similar radio access resources of the RANs of the same RAT type can be fully utilized, the types of radio access capabilities that the preset AMF needs to store are reduced, and the occupation of the storage space of the preset AMF is reduced.

[0029] In a possible implementation manner of the first aspect, the second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of a second radio access technology (RAT) type, and the RAT type of the second RAN is the second RAT type.

[0030] The second aspect of the present application provides a method for communication connection, including:

[0031] The preset terminal UE generates the first radio access capability of the preset UE and the second radio access capability of the preset UE. The first radio access capability of the preset UE is a subset of the radio access capabilities of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capabilities of the preset UE;

[0032] The preset UE processes the first radio access capability of the preset UE and the second radio access capability of the preset UE, so that when the preset UE is connected to the first RAN and the preset UE is connected to the second RAN, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE, and the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0033] In a possible implementation manner of the second aspect, the method further includes:

[0034] The preset UE obtains the radio air interface capabilities of the preset UE, the first RAN, and the second RAN.

[0035] The preset UE generates the first radio air interface capability and the second radio air interface capability of the preset UE, including:

[0036] The preset UE generates the first radio air interface capability and the second radio air interface capability of the preset UE according to the radio air interface capabilities of the preset UE, the first RAN, and the second RAN.

[0037] In a possible implementation manner of the second aspect, the preset UE processes the first radio air interface capability and the second radio air interface capability of the preset UE, including:

[0038] The preset UE sends the first radio air interface capability of the preset UE to the first AMF, and the first AMF is responsible for the access management of the preset UE;

[0039] The preset UE sends the second radio air interface capability of the preset UE to the second AMF, and the second AMF is responsible for the access management of the preset UE.

[0040] In a possible implementation manner of the second aspect, the preset UE processes the first radio air interface capability and the second radio air interface capability of the preset UE, including:

[0041] The preset UE sends the first radio air interface capability and the second radio air interface capability of the preset UE to the preset AMF, and the preset AMF is responsible for the access management of the preset UE.

[0042] In a possible implementation manner of the second aspect, the method further includes:

[0043] The preset UE sends single-connection mode information or dual-connection mode information to the preset AMF. The single-connection mode information indicates that the preset UE is connected to one RAN, and the dual-connection mode information indicates that the preset UE is connected to two RANs.

[0044] In a possible implementation manner of the second aspect, the first radio air interface capability of the preset UE is the radio air interface capability used when the preset UE is connected to a RAN of the first radio access technology (RAT) type, and the second radio air interface capability of the preset UE is the radio air interface capability used when the preset UE is connected to a RAN of the second RAT type.

[0045] A third aspect of the present application provides a method for communication connection, including:

[0046] The first RAN generates the first radio air interface capability and the second radio air interface capability of the preset UE. The first radio air interface capability of the preset UE is a subset of the radio air interface capability of the preset UE, and the second radio air interface capability of the preset UE is a subset of the radio air interface capability of the preset UE;

[0047] The first RAN processes the first radio access capability of the preset UE and the second radio access capability of the preset UE, so that when the preset UE is connected to the first RAN and the preset UE is connected to the second RAN, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE, and the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0048] In a possible implementation manner of the third aspect, the method further includes:

[0049] The first RAN obtains the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN;

[0050] The first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE, including:

[0051] The first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN.

[0052] In a possible implementation manner of the third aspect, the first RAN processes the first radio access capability of the preset UE and the second radio access capability of the preset UE, including:

[0053] The first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE;

[0054] The first RAN sends the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0055] In a possible implementation manner of the third aspect, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the first radio access technology (RAT) type, and the second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the second RAT type.

[0056] A fourth aspect of the present application provides a communication connection device, including:

[0057] An acquisition unit, configured to acquire the radio access capability of the preset terminal UE and the first radio access capability of the preset UE, where the first radio access capability of the preset UE is a subset of the radio access capability of the preset UE, and the preset UE is connected to a preset AMF through the first RAN;

[0058] The acquisition unit is further configured to acquire the working mode information of the preset UE, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE;

[0059] A sending unit, configured to send the radio access capabilities of a preset UE, or the first radio access capabilities of the preset UE, to a first RAN according to the working mode information of the preset UE, so that the first RAN performs radio access configuration with the preset UE according to the first radio access capabilities of the preset UE, or the radio access capabilities of the UE.

[0060] In a possible implementation manner of the fourth aspect, the sending unit is specifically configured to:

[0061] When the working mode information indicates that the preset UE is connected to two RANs, send the first radio access capabilities of the preset UE to the first RAN according to the working mode information;

[0062] When the working mode information indicates that the preset UE is connected to one RAN, send the radio access capabilities of the preset UE to the first RAN according to the working mode information.

[0063] In a possible implementation manner of the fourth aspect, the working mode information includes single-connection mode information or dual-connection mode information. The single-connection mode information indicates that the preset UE is connected to one RAN, and the dual-connection mode information indicates that the preset UE is connected to two RANs;

[0064] An obtaining unit, specifically configured to obtain the single-connection mode information or dual-connection mode information sent by the preset UE.

[0065] In a possible implementation manner of the fourth aspect, the first radio access capabilities of the preset UE are a set of radio access capabilities generated by a first device according to the radio access capabilities of the preset UE, and the first device is a preset AMF, a preset UE, or a first RAN.

[0066] In a possible implementation manner of the fourth aspect, the obtaining unit is further configured to obtain the second radio access capabilities of the preset UE. The second radio access capabilities of the preset UE are a subset of the radio access capabilities of the preset UE, and the preset UE is connected to a preset AMF through a second RAN;

[0067] When the working mode information indicates that the preset UE is connected to two RANs, the sending unit is further configured to send the second radio access capabilities of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capabilities of the preset UE.

[0068] In a possible implementation manner of the fourth aspect, the obtaining unit is specifically configured to generate the working mode information of the preset UE when the preset UE is connected to a preset AMF through a first RAN and a second RAN respectively, and the working mode information of the preset UE indicates that the preset UE is connected to two RANs.

[0069] In a possible implementation manner of the fourth aspect, the first radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the first radio access technology (RAT) type, and the RAT type of the first RAN is the first RAT type.

[0070] In a possible implementation manner of the fourth aspect, the second radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the second radio access technology (RAT) type, and the RAT type of the second RAN is the second RAT type.

[0071] A fifth aspect of the present application provides a communication connection device, including:

[0072] A generating unit, configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE, where the first radio access capability of the preset UE is a subset of the radio access capability of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capability of the preset UE;

[0073] A processing unit, configured to process the first radio access capability of the preset UE and the second radio access capability of the preset UE, so that when the preset UE connects to the first RAN and the preset UE connects to the second RAN, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE, and the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0074] In a possible implementation manner of the fifth aspect, the device further includes an obtaining unit, configured to obtain the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN;

[0075] The generating unit is specifically configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN.

[0076] In a possible implementation manner of the fifth aspect, the processing unit is specifically configured to:

[0077] Send the first radio access capability of the preset UE to the first AMF, and the first AMF is responsible for the access management of the preset UE;

[0078] Send the second radio access capability of the preset UE to the second AMF, and the second AMF is responsible for the access management of the preset UE.

[0079] In a possible implementation manner of the fifth aspect, the processing unit is specifically configured to send the first radio access capability of the preset UE and the second radio access capability of the preset UE to a preset AMF, and the preset AMF is responsible for the access management of the preset UE.

[0080] In a possible implementation of the fifth aspect, the apparatus further includes a sending unit, configured to send single-connection mode information or dual-connection mode information to a preset AMF, where the single-connection mode information indicates that a preset UE is connected to one RAN, and the dual-connection mode information indicates that the preset UE is connected to two RANs.

[0081] In a possible implementation of the fifth aspect, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of a first radio access technology (RAT) type, and the second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of a second RAT type.

[0082] A sixth aspect of the present application provides an apparatus for communication connection, including:

[0083] A generating unit, configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE, where the first radio access capability of the preset UE is a subset of the radio access capability of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capability of the preset UE;

[0084] A processing unit, configured to process the first radio access capability of the preset UE and the second radio access capability of the preset UE, so that when the preset UE is connected to a first RAN and the preset UE is connected to a second RAN, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE, and the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0085] In a possible implementation of the sixth aspect, the apparatus further includes an obtaining unit, configured to obtain the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN;

[0086] A generating unit, configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN.

[0087] In a possible implementation of the sixth aspect, the processing unit is specifically configured to:

[0088] Perform radio access configuration with the preset UE according to the first radio access capability of the preset UE;

[0089] Send the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0090] In a possible implementation of the sixth aspect, the first radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the first radio access technology (RAT) type, and the second radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the second RAT type.

[0091] A seventh aspect of the present application provides a communication connection device, including a processor and a memory, the processor being coupled to the memory, and characterized in that the memory is used to store a program;

[0092] The processor is used to execute the program in the memory, so as to execute the method in the foregoing first aspect or a possible implementation of the first aspect.

[0093] An eighth aspect of the present application provides a communication connection device, including a processor and a memory, the processor being coupled to the memory, and characterized in that the memory is used to store a program;

[0094] The processor is used to execute the program in the memory, so as to execute the method in the foregoing second aspect or a possible implementation of the second aspect.

[0095] A ninth aspect of the present application provides a communication connection device, including a processor and a memory, the processor being coupled to the memory, and characterized in that the memory is used to store a program;

[0096] The processor is used to execute the program in the memory, so as to execute the method in the foregoing third aspect or a possible implementation of the third aspect.

[0097] A tenth aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when running on a computer, causes the computer to execute the method in the foregoing first aspect or a possible implementation of the first aspect.

[0098] An eleventh aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when running on a computer, causes the computer to execute the method in the foregoing second aspect or a possible implementation of the second aspect.

[0099] A twelfth aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when running on a computer, causes the computer to execute the method in the foregoing third aspect or a possible implementation of the third aspect.

[0100] A thirteenth aspect of the embodiments of the present application provides a computer program product including instructions, which, when running on a computer, causes the computer to execute the method in the foregoing embodiments. Description of the Drawings

[0101] Figure 1A schematic diagram of an architecture of a 5G communication system provided by an embodiment of the present application;

[0102] Figure 2a A schematic diagram of a network structure provided by an embodiment of the present application;

[0103] Figure 2b A schematic flowchart of a method for communication connection provided by an embodiment of the present application;

[0104] Figure 3a Another schematic diagram of a network structure provided by an embodiment of the present application;

[0105] Figure 3b Another schematic flowchart of a method for communication connection provided by an embodiment of the present application;

[0106] Figure 4a Another schematic diagram of a network structure provided by an embodiment of the present application;

[0107] Figure 4b Another schematic flowchart of a method for communication connection provided by an embodiment of the present application;

[0108] Figure 5a Another schematic diagram of a network structure provided by an embodiment of the present application;

[0109] Figure 5b Another schematic flowchart of a method for communication connection provided by an embodiment of the present application;

[0110] Figure 6 A schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application;

[0111] Figure 7 Another schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application;

[0112] Figure 8 Another schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application;

[0113] Figure 9 Another schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application;

[0114] Figure 10 Another schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application;

[0115] Figure 11 Another schematic diagram of a structure of a device for communication connection provided by an embodiment of the present application. Detailed implementation manners

[0116] The embodiments of the present application provide a method and device for communication connection, which are used to enable a terminal to establish connections with multiple RAN devices simultaneously, so as to improve the reliability of the terminal's communication connection.

[0117] Terms such as "first", "second", "third", "fourth", etc. (if any) in the specification, claims and the above-mentioned drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "correspond to" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0118] To facilitate the understanding of the technical solutions provided by the embodiments of the present application, some communication system architectures related to the embodiments of the present application are briefly introduced here:

[0119] Please refer to Figure 1 , Figure 1 which is the architecture of the 5G communication system provided by the embodiments of the present application.

[0120] The 5G system architecture is as Figure 1 shown, and the main network functions and entities included are: User Equipment (UE), Radio Access Network (RAN), User Plane Function (UPF), Destination Network (DN), AMF, Session Management Function (SMF), Policy Control Function (PCF), Application Function (AF), Network Slice Selection Function (NSSF), Authentication Server Function (AUSF), Network Exposure Function (NEF), and Unified Data Management (UDM).

[0121] Among them, UE, RAN, UPF, and DN are data plane network function entities. The user's data traffic can be transmitted through a protocol data unit (PDU) session established between the UE and the DN. During the data transmission process, it passes through the RAN and UPF network function entities. The other parts are called control plane network functions and entities, which are mainly responsible for functions such as authentication and authorization, registration management, session management, mobility management, and policy control, so as to achieve reliable and stable transmission of user layer traffic.

[0122] Terminal device: It can be a UE, a handheld terminal, a laptop computer, a cellular phone, a smart phone, a tablet computer, a handheld device, an AR device, a VR device, a machine type communication terminal, or other devices that can access the network. The terminal device and the access network device communicate with each other using a certain air interface technology (such as NR or LTE technology). Terminal devices can also communicate with each other using a certain air interface technology (such as NR or LTE technology). In vehicle-to-everything (V2X) communication, the communication terminal installed on a vehicle is a type of terminal device, and a roadside unit (RSU) can also be regarded as a type of terminal device. A drone equipped with a communication terminal can be regarded as a type of terminal device.

[0123] RAN device: It is mainly responsible for functions such as radio resource management, service quality management, data compression, and encryption on the air interface side. The access network device can include various forms of base stations, such as macro base stations, micro base stations, relay stations, access points, etc. In systems using different radio access technologies, the names of the devices with base station functions may be different. For example, in the 5th generation (5G) system, it is called a gNB. Under the service-based architecture of the access network, the RAN device can also be replaced by an access network function (ANF) network element.

[0124] AMF network element: It belongs to the core network element and is mainly responsible for the signaling processing part, such as functions like access control, mobility management, attachment and detachment, and gateway selection. When the AMF network element provides services for a session in a terminal device, it will provide control plane storage resources for the session to store session identifiers, SMF network element identifiers associated with the session identifiers, etc.

[0125] UPF network element: It is responsible for the forwarding and reception of user data in the terminal device. It can receive user data from the data network and transmit it to the terminal device through the access network device; the UPF network element can also receive user data from the terminal device through the access network device and forward it to the data network. The transmission resources and scheduling functions provided by the UPF network element for the terminal device are managed and controlled by the SMF network element.

[0126] NEF network element: mainly supports the secure interaction between 3GPP networks and third-party applications.

[0127] AF network element: mainly supports interaction with the 3GPP core network to provide services, such as influencing data routing decisions, policy control functions, or providing some third-party services to the network side.

[0128] PCF network element: responsible for policy control decisions, providing policy rules for control plane functions, and traffic-based charging control functions.

[0129] NSSF network element: mainly responsible for network slice selection, determining the network slice instances that the UE is allowed to access based on the UE's slice selection assistance information, subscription information, etc.

[0130] UDM network element: mainly responsible for UE subscription data management, including storage and management of UE identifiers, access authorization for UEs, etc.

[0131] AUSF network element: supports 3GPP and non-3GPP access authentication.

[0132] Network Repository Function (NRF) network element: supports the registration and discovery of network functions.

[0133] Unified Data Repository (UDR) network element: stores and retrieves subscription data used by UDM and PCF.

[0134] Network Data Analytics Function (NWDAF) network element: supports collecting data from other network functions and AFs; supports collecting data from OAM; supports providing analysis information to other network functions and AFs.

[0135] The terminal is connected to two RANs simultaneously. In the case where the UE is connected to two RANs simultaneously, the AMF will send the UE RadioCapability to the two RANs, and the two RANs will respectively configure the air interface capabilities of the terminal according to the UE Radio Capability. Since the two RANs configure the UE Radio Capability of the terminal simultaneously, the configuration fails. How to solve this configuration problem and enable the UE to be connected to two RANs simultaneously, thereby improving the communication connection reliability of the UE has become an urgent problem to be solved at present.

[0136] For the above objectives, this application proposes that the preset AMF can obtain the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE. The first radio access capabilities of the preset UE are a subset of the radio access capabilities of the preset UE. The preset UE can be connected to the preset AMF through the first RAN, and the preset AMF can obtain the working mode information of the preset UE, that is, the number of RANs connected by the preset UE. According to the number of RANs connected by the preset UE, the preset AMF selects to send the radio access capabilities of the preset UE, or the first radio access capabilities of the preset UE, to the first RAN, so that the first RAN can perform radio access configuration with the preset UE according to the radio access capabilities of the preset UE, or the first radio access capabilities of the preset UE. When the number of RANs connected by the UE is different, different radio access resources are used to perform different radio access configurations with the UE, achieving the purpose of the UE being connected to multiple RANs simultaneously and communicating, and improving the reliability of the UE's communication connection.

[0137] Since there are various different application scenarios in the connection between the UE and the AMF through the RAN, this application will be described in combination with different application scenarios. For example, while the UE is connected to the first AMF through the first RAN, the UE is connected to the second AMF through the second RAN, or while the UE is connected to the third AMF through the first RAN, the UE is connected to the third AMF through the second RAN.

[0138] First, in combination with Figure 2a and 2b the scenario where the UE is connected to the first AMF through the first RAN and the UE is connected to the second AMF through the second RAN will be used to introduce the solution proposed in this application:

[0139] From Figure 2a it can be seen that the preset UE is connected to the first AMF through the first RAN, and the preset UE is connected to the second AMF through the second RAN.

[0140] Next, in combination with Figure 2b the solution provided in this application will be introduced:

[0141] 201. The preset UE generates the first radio access capabilities of the preset UE and the second radio access capabilities of the preset UE;

[0142] The preset UE generates the first radio access capabilities (partial radio capability info 1) of the preset UE and the second radio access capabilities (partial radio capability info 2) of the preset UE, where the first radio access capabilities of the preset UE are a subset of the radio access capabilities of the preset UE, and the second radio access capabilities of the preset UE are a subset of the radio access capabilities of the preset UE.

[0143] Optionally, the preset UE generates the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE. The radio access capability of the preset UE may be information on radio access technologies supported by the preset UE (for example, power level, frequency band, number of MIMO layers, etc.). Taking the radio access capability of the preset UE being frequency bands f1 and f2 as an example, the first radio access capability of the preset UE is frequency band f1, and the second radio access capability of the preset UE is frequency band f2.

[0144] Optionally, the first RAN supports the first radio access capability of the preset UE, and the second RAN supports the second radio access capability of the preset UE. That is to say, the first radio access capability of the preset UE is still a subset of the radio access capabilities of the first RAN, and the second radio access capability of the preset UE is still a subset of the radio access capabilities of the second RAN.

[0145] In addition, the radio access capability of the preset UE includes all radio access capabilities supported by the preset UE. The first radio access capability of the preset UE and the second radio access capability of the preset UE are partial radio access capabilities of the preset UE, and there is an association relationship between the first radio access capability of the preset UE and the RAT of the RAN to which the preset UE is connected, and there is an association relationship between the second radio access capability of the preset UE and the RAT of the RAN to which the preset UE is connected.

[0146] Exemplarily, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the first RAT type, and the RAT type of the first RAN is the first RAT type. The second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the second RAT type, and the RAT type of the second RAN is the second RAT type. For example, the first RAT type may be a 5G RAT type, and the second RAT type may be a 6G RAT type, which is not limited here.

[0147] In the embodiments of the present application, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the first RAT type. When the preset UE is connected to the first RAN, the first radio access capability of the preset UE is used. That is to say, the RAT type of the first RAN is the first RAT type. Storing and using the radio access capability of the preset UE according to the RAT type of the RAN can make full use of the similar radio access resources of the RANs of the same RAT type, reduce the types of radio access capabilities that the preset AMF needs to store, and reduce the occupation of the storage space of the preset AMF.

[0148] It can be understood that the description of the preset UE generating the first radio access capability of the preset UE and the second radio access capability of the preset UE here, and the description of the first RAT type and the second RAT type are only examples. In actual applications, it should be set according to specific application scenarios, which is not limited here.

[0149] 202. The preset UE sends the radio access capability of the preset UE and the first radio access capability of the preset UE to the first AMF.

[0150] After the preset UE generates the first radio access capability and the second radio access capability of the preset UE, the preset UE sends the radio access capability (full radio capability) of the preset UE and the first radio access capability (partial radio capability info 1) of the preset UE to the first AMF. Among them, the preset UE is connected to the first AMF through the first RAN.

[0151] When the UE accesses the network, it needs to report the capability information of the UE to the network. The network configures the UE according to the capability information of the UE and cooperates with the UE to achieve data transmission between the UE and the network. The capability information of the UE includes the radio access capability (UE radio capability) information and the core network capability (UE core network capability) information of the UE. Among them, the connection between the UE and the network is divided between the RAN and the core network. The access network side uses the UE radio capability to implement the configuration between the access network and the UE, and the core network side uses the UE core network capability to implement the configuration between the core network and the UE.

[0152] Specifically, the UE radio capability contains information about the radio access technologies supported by the UE (for example, power level, frequency band, and number of MIMO layers, etc.).

[0153] Exemplarily, the preset UE can send the radio access capability (full radio capability) of the preset UE and the first radio access capability (partial radio capability info 1) of the preset UE to the first AMF through a non-access stratum (NAS) message.

[0154] Furthermore, after the first AMF receives the radio access capability of the preset UE and the first radio access capability of the preset UE sent by the preset UE, it can also save the radio access capability of the preset UE and the first radio access capability of the preset UE for subsequent use.

[0155] Exemplarily, the preset UE may also send a first message to the first AMF via a NAS message, where the first message indicates an additional increase in the UE's air interface capabilities. The first message may be "UEradio capability addition". After receiving the UE's full radio capability and the UE's partial radio capability info 1, the first AMF stores the UE's full radio capability and the UE's partial radio capability info 1.

[0156] Furthermore, the first AMF may also encode the UE's full radio capability and the UE's partial radio capability info 1. For example, encoding 1 corresponds to the UE's full radio capability, and encoding 2 corresponds to the UE's partial radio capability info 1. After encoding the UE's full radio capability and the UE's partial radio capability info 1, the first AMF synchronizes the encoding to the preset UE. Optionally, the preset UE may also encode the UE's full radio capability and the UE's partial radio capability info 1 and then synchronize the encoding to the first AMF. There is no restriction here.

[0157] Optionally, the preset UE may also send the UE's full radio capability and the UE's partial radio capability info 1 to the first RAN via a radio resource control (RRC) message, and the first RAN sends the UE's full radio capability and the UE's partial radio capability info 1 to the first AMF via an interface between RAN nodes (N2) message.

[0158] Further, when the first AMF receives the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE sent by the first RAN, the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE sent by the first RAN may also carry a first identifier, where the first identifier indicates storing the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE. The first AMF stores the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE according to the first identifier. The first identifier may be "full / partial radio capability indication".

[0159] It can be understood that the description of the preset UE sending the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE to the first AMF here is only an example. In actual applications, it can also be set according to specific application scenarios, and there is no limitation here.

[0160] It should be noted that the description of steps 202 and 203 here is only an example. There is no clear sequence for steps 202 and 203. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0161] 203. The preset UE sends the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE to the second AMF;

[0162] After the preset UE generates the first radio access capabilities and the second radio access capabilities of the preset UE, the preset UE sends the radio access capabilities (full radio capability) of the preset UE and the second radio access capabilities (partial radio capability info 2) of the preset UE to the second AMF. The preset UE is connected to the second AMF through the second RAN.

[0163] Exemplarily, the preset UE may send the radio access capabilities (full radio capability) of the preset UE and the second radio access capabilities (partial radio capability info 2) of the preset UE to the second AMF through a NAS message.

[0164] Further, after the second AMF receives the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE sent by the preset UE, it may also save the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE for subsequent use.

[0165] Exemplarily, the preset UE may also send a first message to the second AMF via an NAS message, where the first message indicates an additional increase in the UE's air interface capabilities. The first message may be "UE radio capability addition". After receiving the UE's full radio capability and the UE's partial radio capability info 2, the second AMF stores the UE's full radio capability and the UE's partial radio capability info 2.

[0166] Furthermore, the second AMF may also encode the UE's full radio capability and the UE's partial radio capability info 2. For example, encoding 1 corresponds to the UE's full radio capability, and encoding 3 corresponds to the UE's partial radio capability info 2. After encoding the UE's full radio capability and the UE's partial radio capability info 2, the second AMF synchronizes the encoding to the preset UE. Optionally, the preset UE may also encode the UE's full radio capability and the UE's partial radio capability info 2 and then synchronize the encoding to the second AMF. There is no limitation here.

[0167] Optionally, the preset UE may also send the UE's full radio capability and the UE's partial radio capability info 2 to the first RAN via an RRC message, and the second RAN sends the UE's full radio capability and the UE's partial radio capability info 2 to the second AMF via an N2 message.

[0168] Furthermore, when receiving the UE's full radio capability and the UE's partial radio capability info 2 sent by the second RAN, the UE's full radio capability and the UE's partial radio capability info 2 sent by the second RAN may also carry a first identifier, where the first identifier indicates to store the UE's full radio capability and the UE's partial radio capability info 2. The second AMF stores the UE's full radio capability and the UE's partial radio capability info 2 according to the first identifier. Among them, the first identifier may be "full / partial radio capability indication".

[0169] It can be understood that the description here of the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE sent to the second AMF is only an example. In actual applications, it can also be set according to specific application scenarios, and there is no limitation here.

[0170] It should be noted that the description here of steps 202 and 203 is only an example. There is no definite order between steps 202 and 203. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0171] 204. The preset UE sends the working mode information of the preset UE to the first AMF and the second AMF;

[0172] When the connection state of the preset UE changes, for example, the preset UE changes from the idle state to the connected state, or the preset UE changes from connecting to one RAN to connecting to two RANs, or the preset UE changes from connecting to two RANs to connecting to one RAN, the preset UE can send the working mode information of the preset UE to the first AMF and the second AMF. The working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0173] Exemplarily, when the preset UE enters the dual-connection / single-connection state again, the preset UE sends single-connection mode information or dual-connection mode information to the first AMF and the second AMF. The single-connection mode information indicates that the preset UE is connected to one RAN or the preset UE is connected to the network through one RAN. The dual-connection mode information indicates that the preset UE is connected to two RANs or the preset UE is connected to the network through two RANs. The single-connection mode information can be replaced by the full radio capability indication of the preset UE, or the encoding corresponding to full radio capability, such as encoding 1, and there is no limitation here. The dual-connection mode information can be replaced by partial radio capability indication, or the encoding corresponding to partial radio capability, such as encoding 2 or encoding 3, and there is no limitation here.

[0174] Specifically, when the preset UE is connected to the first RAN, the preset UE sends the single-connection mode information to the first AMF through the first RAN.

[0175] When the preset UE is connected to the second RAN, the preset UE sends the single-connection mode information to the second AMF through the second RAN.

[0176] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends the dual-connection mode information to the first AMF and the second AMF.

[0177] It can be understood that the description of the content of the working mode information of the preset UE here is only an example. In actual applications, it should be set in combination with specific application scenarios and is not limited here.

[0178] In the embodiments of the present application, the preset AMF uses the single-connection mode information and the dual-connection mode information to determine the number of RANs to which the preset UE is connected, and further determines the air interface capability processing method according to the number of RANs to which the preset UE is connected, which helps to accurately allocate the accurate air interface capability to the RAN according to the actual connection situation of the preset UE, so as to realize the flexible switching between the single-RAN connection and the multi-RAN connection of the preset UE, and improve the flexibility of the solution while ensuring the accuracy of the solution.

[0179] 205. The first AMF sends the air interface capability of the preset UE or the first air interface capability of the preset UE to the first RAN according to the working mode information of the preset UE;

[0180] After the first AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the air interface capability of the preset UE, or the first air interface capability of the preset UE, to the first RAN according to the working mode information of the preset UE.

[0181] Exemplarily, when the preset UE is connected to the first RAN, the working mode information of the preset UE indicates that the preset UE is in the single-connection mode information, and the first AMF sends the air interface capability of the preset UE to the first RAN;

[0182] When the preset UE is connected to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in the dual-connection mode information, and the first AMF sends the first air interface capability of the preset UE to the first RAN.

[0183] In the embodiments of the present application, when the working mode information indicates that the preset UE is connected to two RANs, the preset AMF sends the first air interface capability of the preset UE to the first RAN. When the working mode information indicates that the preset UE is connected to one RAN, the preset AMF sends the air interface capability of the preset UE to the first RAN, and flexibly sends different air interface capabilities to the first RAN according to the different numbers of RANs to which the preset UE is connected, so that the first RAN can reasonably configure the air interface with the preset UE according to the air interface capability, improving the flexibility and feasibility of the solution.

[0184] Optionally, the first AMF may also send the correspondence between the air interface capability of the preset UE and the single-connection mode information, and the correspondence between the first air interface capability of the preset UE and the dual-connection mode information to the first RAN.

[0185] It can be understood that the description here of the first AMF sending the radio access capabilities of the preset UE and the first radio access capabilities of the preset UE to the first RAN according to the working mode information sent by the preset UE is only an example. In actual applications, it should be set according to the specific application scenario, and no limitation is imposed here.

[0186] It should be noted that the description here of steps 205 and 206 is only an example. There is no definite sequence for steps 205 and 206. In specific application scenarios, it should be set according to specific requirements, and no limitation is imposed here.

[0187] 206. The second AMF sends the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE to the second RAN according to the working mode information of the preset UE;

[0188] After the second AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE to the second RAN according to the working mode information of the preset UE.

[0189] Exemplarily, when the preset UE is connected to the second RAN, the working mode information of the preset UE indicates that the preset UE is in single-connection mode information, and the second AMF sends the radio access capabilities of the preset UE to the second RAN;

[0190] When the preset UE is connected to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in dual-connection mode information, and the second AMF sends the second radio access capabilities of the preset UE to the second RAN.

[0191] Optionally, the second AMF may also send the correspondence between the radio access capabilities of the preset UE and the single-connection mode information, and the correspondence between the second radio access capabilities of the preset UE and the dual-connection mode information to the second RAN.

[0192] It can be understood that the description here of the second AMF sending the radio access capabilities of the preset UE and the second radio access capabilities of the preset UE to the second RAN according to the working mode information sent by the preset UE is only an example. In actual applications, it should be set according to the specific application scenario, and no limitation is imposed here.

[0193] It should be noted that the description here of steps 205 and 206 is only an example. There is no definite sequence for steps 205 and 206. In specific application scenarios, it should be set according to specific requirements, and no limitation is imposed here.

[0194] 207. The first RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the first radio access capabilities of the preset UE;

[0195] After receiving the radio access capabilities of a preset UE or the first radio access capabilities of the preset UE, the first RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the first radio access capabilities of the preset UE.

[0196] Specifically, when the first AMF sends the correspondence between the radio access capabilities of the preset UE and the single-connection mode information, and the correspondence between the first radio access capabilities of the preset UE and the dual-connection mode information to the first RAN.

[0197] When the preset UE is connected to the first RAN, the preset UE sends single-connection mode information to the first RAN through an RRC message. After obtaining the single-connection mode information, the first RAN can use the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0198] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual-connection mode information to the first RAN through an RRC message. After obtaining the dual-connection mode information, the first RAN can use the first radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0199] It should be noted that the descriptions of steps 207 and 208 here are only examples. There is no clear sequence between steps 207 and 208. In specific application scenarios, it should be set according to specific requirements and is not limited here.

[0200] 208. The second RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE.

[0201] After receiving the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE, the second RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE.

[0202] Specifically, when the second AMF sends the correspondence between the radio access capabilities of the preset UE and the single-connection mode information, and the correspondence between the second radio access capabilities of the preset UE and the dual-connection mode information to the second RAN.

[0203] When the preset UE is connected to the second RAN, the preset UE sends single-connection mode information to the second RAN through an RRC message. After obtaining the single-connection mode information, the second RAN can use the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0204] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual-connection mode information to the second RAN through an RRC message. After obtaining the dual-connection mode information, the second RAN can use the second air interface capability of the preset UE to perform air interface configuration with the preset UE.

[0205] It should be noted that the descriptions of steps 207 and 208 here are only examples, and there is no clear sequence between steps 207 and 208. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0206] In the embodiments of the present application, the air interface capabilities of the preset UE and the first air interface capabilities of the preset UE are obtained through the first AMF. Among them, the first air interface capabilities of the preset UE are a subset of the air interface capabilities of the preset UE. The preset UE can be connected to the first AMF through the first RAN. After obtaining the working mode information of the preset UE, the first AMF sends the air interface capabilities of the preset UE or the first air interface capabilities of the preset UE to the first RAN according to the number of RANs connected to the preset UE indicated by the working mode information of the preset UE, so that the first RAN performs air interface configuration with the preset UE according to the first air interface capabilities of the preset UE or the air interface capabilities of the preset UE. This avoids the situation where the air interface resources cannot be reasonably configured when the preset UE is connected to multiple RANs at the same time, provides the possibility for the preset UE to be connected to multiple RANs for data transmission at the same time, and improves the data transmission stability and communication connection reliability of the preset UE.

[0207] It can be understood that the descriptions of the RAT types of the first RAN and the second RAN here are only examples. In actual applications, the RAT types of the first RAN and the second RAN can be the same. When the RAT types of the first RAN and the second RAN are the same, the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE are the same, and there is no limitation here.

[0208] Optionally, step 209 can be executed before step 201. The specific implementation manner of step 209 is as follows:

[0209] 209. The preset UE obtains the air interface capabilities of the first RAN and the second RAN;

[0210] The preset UE obtains the air interface capabilities of the first RAN from the broadcast message of the first RAN and obtains the air interface capabilities of the second RAN from the broadcast message of the second RAN. The air interface capabilities of the first RAN may be information on radio access technologies (RATs) supported by the first RAN (e.g., power level, frequency band, number of MIMO layers, etc.), and the air interface capabilities of the second RAN may be information on radio access technologies supported by the second RAN (e.g., power level, frequency band, number of MIMO layers, etc.).

[0211] It can be understood that the description of the method for the preset UE to obtain the air interface capabilities of the first RAN and the second RAN here is only an example. In actual applications, it should be set according to specific application scenarios, and no limitation is made here.

[0212] It should be noted that step 209 is an optional step in specific implementations. The description here is only an example and can be selectively implemented in actual applications, and no limitation is made here.

[0213] When step 209 is executed, adaptive adjustments are required in step 201, as follows:

[0214] The generation of the first air interface capability of the preset UE and the second air interface capability of the preset UE by the preset UE may be that the preset UE generates the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capabilities of the preset UE, the air interface capabilities of the first RAN, and the air interface capabilities of the second RAN, so that the first RAN supports the first air interface capability of the preset UE and the second RAN supports the second air interface capability of the preset UE.

[0215] The following combines Figure 3a and Figure 3b to introduce the solution proposed in this application for the scenario where the UE connects to the third AMF through the first RAN and the UE connects to the third AMF through the second RAN at the same time:

[0216] From Figure 3a it can be seen that when the preset UE connects to the third AMF through the first RAN, the preset UE also connects to the third AMF through the second RAN. Among them, the third AMF is the preset AMF.

[0217] The following combines Figure 3b to introduce the solution provided in this application:

[0218] 301. The preset UE generates the first air interface capability of the preset UE and the second air interface capability of the preset UE;

[0219] The operation of step 301 is the same as the foregoing Figure 2bIn [reference document], the operation performed in step 201 is similar. For specific implementation details, please refer to Figure 2b step 201 in [reference document], which will not be elaborated here.

[0220] 302. The preset UE sends the radio access capability of the preset UE, the first radio access capability of the preset UE, and the second radio access capability of the preset UE to the third AMF.

[0221] After the preset UE generates the first radio access capability and the second radio access capability of the preset UE, the preset UE sends the radio access capability (full radio capability) of the preset UE, the first radio access capability (partial radio capability info 1) of the preset UE, and the second radio access capability (partial radio capability info 2) of the preset UE to the third AMF. Among them, the preset UE is connected to the third AMF through the first RAN and the second RAN respectively.

[0222] Exemplarily, when the preset UE is connected to the first RAN and the second RAN at the same time, the preset UE sends the first radio access capability (partial radio capability info 1) of the preset UE to the third AMF through the first RAN, and the preset UE sends the second radio access capability (partial radio capability info 2) of the preset UE to the third AMF through the second RAN.

[0223] When the preset UE is connected to the first RAN, the preset UE sends the radio access capability (full radio capability) of the preset UE to the third AMF through the first RAN;

[0224] When the preset UE is connected to the second RAN, the preset UE sends the radio access capability (full radio capability) of the preset UE to the third AMF through the second RAN.

[0225] Furthermore, after the third AMF obtains the radio access capability of the preset UE, the first radio access capability of the preset UE, and the second radio access capability of the preset UE, it stores the radio access capability of the preset UE, the first radio access capability of the preset UE, and the second radio access capability of the preset UE.

[0226] Optionally, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to the RAN of the first RAT type. The second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to the RAN of the second RAT type.

[0227] It can be understood that the description here of the first radio access capability and the second radio access capability of the preset UE sent to the third AMF is only an example. In actual applications, it can also be set in combination with specific application scenarios, and there is no limitation here.

[0228] 303. The third AMF obtains the working mode information of the preset UE;

[0229] In the case where the preset UE sends the working mode information of the preset UE to the third AMF, when the connection state of the preset UE changes, for example, the preset UE changes from the idle state to the connected state, the preset UE changes from connecting one RAN to connecting two RANs, or the preset UE changes from connecting two RANs to connecting one RAN, the preset UE can send the working mode information of the preset UE to the third AMF, and the working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0230] In the case where the third AMF generates the working mode information of the preset UE, since the third AMF manages the connection of the preset UE to the first RAN and the second RAN, the third AMF can generate the working mode information of the preset UE according to the connection situation of the preset UE to the RAN. The working mode information of the preset UE indicates the number of RANs connected to the preset UE, or the working mode information of the preset UE indicates that the preset UE is connected to one or two RANs. Among them, the working mode information of the preset UE may include dual-connection mode information and single-connection mode information.

[0231] Exemplarily, when the preset UE enters the dual-connection / single-connection state again, the preset UE sends single-connection mode information or dual-connection mode information to the first AMF and the second AMF. The single-connection mode information indicates that the preset UE is connected to one RAN or the preset UE is connected to the network through one RAN. The dual-connection mode information indicates that the preset UE is connected to two RANs or the preset UE is connected to the network through two RANs. The single-connection mode information can be replaced by the full radio access capability indication of the preset UE, or the encoding corresponding to the full radio capability, such as encoding 1, and there is no limitation here. The dual-connection mode information can be replaced by the partial radio capability indication, or the encoding corresponding to the partial radio capability, such as encoding 2 or encoding 3, and there is no limitation here.

[0232] Specifically, when the preset UE is connected to the first RAN, the preset UE sends single-connection mode information to the third AMF through the first RAN.

[0233] When the preset UE connects to the second RAN, the preset UE sends single-connection mode information to the third AMF through the second RAN.

[0234] When the preset UE connects to the first RAN and the second RAN, the preset UE sends dual-connection mode information to the third AMF.

[0235] It can be understood that the description of the content of the working mode information of the preset UE here is only an example. In actual applications, it should be set according to the specific application scenario, and no restrictions are made here.

[0236] 304. The third AMF sends the first radio access capability of the preset UE, or the radio access capability of the preset UE, to the first RAN according to the working mode information of the preset UE.

[0237] After the third AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the radio access capability of the preset UE, or the first radio access capability of the preset UE, to the first RAN according to the working mode information of the preset UE.

[0238] Exemplarily, when the preset UE connects to the first RAN, the working mode information of the preset UE indicates that the preset UE is in single-connection mode information, and the third AMF sends the radio access capability of the preset UE to the first RAN.

[0239] When the preset UE connects to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in dual-connection mode information, and the third AMF sends the first radio access capability of the preset UE to the first RAN.

[0240] Optionally, the third AMF can also send the correspondence between the radio access capability of the preset UE and the single-connection mode information, and the correspondence between the first radio access capability of the preset UE and the dual-connection mode information to the first RAN.

[0241] Furthermore, when the third AMF sends the first radio access capability of the preset UE to the first RAN, the third AMF sends the first radio access capability of the preset UE to the first RAN according to the RAT type of the first RAN, and the RAT type of the first RAN is the first RAT type.

[0242] It can be understood that the description of the third AMF sending the radio access capability of the preset UE and the first radio access capability of the preset UE to the first RAN according to the working mode information sent by the preset UE here is only an example. In actual applications, it should be set according to the specific application scenario, and no restrictions are made here.

[0243] It should be noted that the descriptions of steps 304 and 305 here are only examples, and there is no clear sequence between steps 304 and 305. In specific application scenarios, it should be set according to specific requirements, and no restrictions are imposed here.

[0244] 305. The third AMF sends the second radio access capability of the preset UE, or the radio access capability of the preset UE, to the second RAN according to the working mode information of the preset UE.

[0245] After the third AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the radio access capability of the preset UE, or the second radio access capability of the preset UE, to the second RAN according to the working mode information of the preset UE.

[0246] Exemplarily, when the preset UE is connected to the second RAN, the working mode information of the preset UE indicates that the preset UE is in the single-connection mode information, and the third AMF sends the radio access capability of the preset UE to the second RAN.

[0247] When the preset UE is connected to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in the dual-connection mode information, and the third AMF sends the second radio access capability of the preset UE to the second RAN.

[0248] Optionally, the third AMF may also send the correspondence between the radio access capability of the preset UE and the single-connection mode information, and the correspondence between the second radio access capability of the preset UE and the dual-connection mode information to the second RAN.

[0249] Furthermore, when the third AMF sends the second radio access capability of the preset UE to the second RAN, the third AMF sends the second radio access capability of the preset UE to the second RAN according to the RAT type of the second RAN; the second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to the RAN of the second RAT type, and the RAT type of the second RAN is the second RAT type. For example, the first RAT type may be the 5G RAT type, and the second RAT type may be the 6G RAT type, and no restrictions are imposed here.

[0250] It can be understood that the descriptions of the third AMF sending the radio access capability of the preset UE and the first radio access capability of the preset UE to the second RAN according to the working mode information sent by the preset UE here are only examples. In actual applications, it should be set according to specific application scenarios, and no restrictions are imposed here.

[0251] It should be noted that the descriptions of steps 304 and 305 here are only examples, and there is no clear sequence between steps 304 and 305. In specific application scenarios, it should be set according to specific requirements, and no restrictions are imposed here.

[0252] 306. The first RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the first radio access capabilities of the preset UE.

[0253] After receiving the radio access capabilities of the preset UE or the first radio access capabilities of the preset UE, the first RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the first radio access capabilities of the preset UE.

[0254] Specifically, when the third AMF sends the correspondence between the radio access capabilities of the preset UE and the single-connection mode information, and the correspondence between the first radio access capabilities of the preset UE and the dual-connection mode information to the first RAN.

[0255] When the preset UE is connected to the first RAN, the preset UE sends the single-connection mode information to the first RAN through an RRC message. After obtaining the single-connection mode information, the first RAN can use the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0256] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends the dual-connection mode information to the first RAN through an RRC message. After obtaining the dual-connection mode information, the first RAN can use the first radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0257] Optionally, when the third AMF sends the radio access capabilities of the preset UE to the first RAN, the first RAN uses the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0258] When the third AMF sends the first radio access capabilities of the preset UE to the first RAN, the first RAN uses the first radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0259] It should be noted that the descriptions of steps 306 and 307 here are only examples, and there is no clear sequence between steps 306 and 307. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0260] 307. The second RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE.

[0261] After receiving the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE, the second RAN performs radio access configuration with the preset UE according to the radio access capabilities of the preset UE or the second radio access capabilities of the preset UE.

[0262] Specifically, when the second AMF sends the correspondence between the radio access capabilities of a preset UE and single-connection mode information, and the correspondence between the second radio access capabilities of the preset UE and dual-connection mode information to the second RAN.

[0263] When the preset UE is connected to the second RAN, the preset UE sends single-connection mode information to the second RAN via an RRC message. After obtaining the single-connection mode information, the second RAN can use the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0264] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual-connection mode information to the second RAN via an RRC message. After obtaining the dual-connection mode information, the second RAN can use the second radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0265] Optionally, when the third AMF sends the radio access capabilities of the preset UE to the second RAN, the second RAN uses the radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0266] When the third AMF sends the second radio access capabilities of the preset UE to the second RAN, the second RAN uses the second radio access capabilities of the preset UE to perform radio access configuration with the preset UE.

[0267] It should be noted that the descriptions of steps 306 and 307 here are only examples, and there is no clear sequence for steps 306 and 307. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0268] In the embodiments of the present application, the third AMF obtains the radio access capabilities of the preset UE, the first radio access capabilities of the preset UE, and the second radio access capabilities of the preset UE, and sends the corresponding radio access capabilities to the first RAN and the second RAN according to the working mode information of the preset UE, so as to enable the preset UE to flexibly perform network switching, and realize data transmission while connecting to two RANs or data transmission while connecting to one RAN. The data transmission flexibility of the UE is improved.

[0269] Optionally, step 308 can be executed before step 301. The specific implementation manner of step 308 is as follows:

[0270] 308. The preset UE obtains the radio access capabilities of the first RAN and the radio access capabilities of the second RAN;

[0271] The preset UE obtains the air interface capabilities of the first RAN from the broadcast message of the first RAN, and obtains the air interface capabilities of the second RAN from the broadcast message of the second RAN. The air interface capabilities of the first RAN may be information on the radio access technology (RAT) supported by the first RAN (for example, power level, frequency band, number of MIMO layers, etc.), and the air interface capabilities of the second RAN may be information on the radio access technology supported by the second RAN (for example, power level, frequency band, number of MIMO layers, etc.).

[0272] It can be understood that the description of the method for the preset UE to obtain the air interface capabilities of the first RAN and the second RAN here is only an example. In actual applications, it should be set according to the specific application scenario, and there is no limitation here.

[0273] It should be noted that step 308 is an optional step in specific implementation. The description here is only an example and can be selectively implemented in actual applications, and there is no limitation here.

[0274] When step 308 is executed, adaptive adjustments need to be made in step 301, specifically as follows:

[0275] The generation of the first air interface capability of the preset UE and the second air interface capability of the preset UE by the preset UE may be that the preset UE generates the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capabilities of the preset UE, the first RAN, and the second RAN, so that the first RAN supports the first air interface capability of the preset UE, and the second RAN supports the second air interface capability of the preset UE.

[0276] Based on Figure 3a the introduced network composition structure, the first air interface capability of the preset UE and the second air interface capability of the preset UE can also be generated by the AMF. The following combines Figure 4a and Figure 4b to introduce this scenario:

[0277] From Figure 4a it can be seen that the preset UE is connected to the third AMF through the first RAN, and the preset UE is also connected to the third AMF through the second RAN. Among them, the third AMF is the preset AMF, and the third AMF generates the first air interface capability of the preset UE and the second air interface capability of the preset UE.

[0278] The following combines Figure 4b to introduce the solution provided by this application:

[0279] 401. The third AMF obtains the air interface capabilities of the preset UE;

[0280] The third AMF obtains the radio access capabilities of the preset UE sent by the preset UE.

[0281] Optionally, the third AMF also obtains the radio access capabilities of the first RAN and the radio access capabilities of the second RAN;

[0282] The third AMF obtains the radio access capabilities of the first RAN from the first RAN, and the third AMF obtains the radio access capabilities of the second RAN from the second RAN.

[0283] It can be understood that the description of the method for the preset UE to obtain the radio access capabilities of the first RAN and the second RAN here is only an example. In actual applications, it should be set according to the specific application scenario, and there is no limitation here.

[0284] 402. The third AMF generates the first radio access capability of the preset UE and the second radio access capability of the preset UE;

[0285] The third AMF generates the first radio access capability (partial radio capability info 1) of the preset UE and the second radio access capability (partial radio capability info 2) of the preset UE. Among them, the first radio access capability of the preset UE is a subset of the radio access capabilities of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capabilities of the preset UE.

[0286] Optionally, the third AMF generates the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capabilities of the preset UE. Optionally, when the third AMF generates the first radio access capability of the preset UE and the second radio access capability of the preset UE, it can also generate the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capabilities of the preset UE, the radio access capabilities of the first RAN, and the radio access capabilities of the second RAN, so that the first RAN supports the first radio access capability of the preset UE, and the second RAN supports the second radio access capability of the preset UE.

[0287] Furthermore, the first RAN supports the first radio access capability of the preset UE, and the second RAN supports the second radio access capability of the preset UE. That is to say, the first radio access capability of the preset UE is still a subset of the radio access capabilities of the first RAN, and the second radio access capability of the preset UE is still a subset of the radio access capabilities of the second RAN.

[0288] In addition, the radio access capabilities of the preset UE include all radio access capabilities supported by the preset UE. The first radio access capability and the second radio access capability of the preset UE are partial radio access capabilities of the preset UE, and the first radio access capability of the preset UE has an association relationship with the radio access technology (RAT) of the RAN to which the preset UE is connected, and the second radio access capability of the preset UE has an association relationship with the RAT of the RAN to which the preset UE is connected.

[0289] Exemplarily, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the first RAT type, and the RAT type of the first RAN is the first RAT type. The second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to a RAN of the second RAT type, and the RAT type of the second RAN is the second RAT type. For example, the first RAT type can be a 5G RAT type, and the second RAT type can be a 6G RAT type, which is not limited here.

[0290] It can be understood that the description of generating the first radio access capability and the second radio access capability of the preset UE here, and the description of the first RAT type and the second RAT type are only examples. In actual applications, it should be set according to the specific application scenario, which is not limited here.

[0291] 403. The third AMF generates the working mode information of the preset UE;

[0292] Since the third AMF is responsible for the access management of the preset UE, when the preset UE is connected to the first RAN and / or the preset UE is connected to the second RAN, the third AMF can generate the working mode information of the preset UE according to the connection situation between the preset UE and the RAN. The working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0293] Specifically, when the connection state of the preset UE changes, for example, the preset UE changes from the idle state to the connected state, or the preset UE changes from connecting one RAN to connecting two RANs, or the preset UE changes from connecting two RANs to connecting one RAN, the third AMF generates the working mode information of the preset UE.

[0294] Among them, the preset UE's working mode information may include dual-connection mode information and single-connection mode information. The single-connection mode information indicates that the preset UE is connected to one RAN or the preset UE is connected to the network through one RAN. The dual-connection mode information indicates that the preset UE is connected to two RANs or the preset UE is connected to the network through two RANs. The single-connection mode information can be replaced by the full radio capability indication of the preset UE, or the encoding corresponding to full radio capability, such as Encoding 1, which is not limited here. The dual-connection mode information can be replaced by partial radio capability indication, or the encoding corresponding to partial radio capability, such as Encoding 2 or Encoding 3, which is not limited here.

[0295] It can be understood that the description of the preset UE's working mode information here is only an example. In actual applications, it should be set according to the specific application scenario, which is not limited here.

[0296] 404. The third AMF sends the radio access capability of the preset UE or the first radio access capability of the preset UE to the first RAN according to the working mode information of the preset UE;

[0297] After the third AMF generates the working mode information of the preset UE, it sends the radio access capability of the preset UE, or the first radio access capability of the preset UE, to the first RAN according to the working mode information of the preset UE.

[0298] Exemplarily, when the preset UE is connected to the first RAN, the working mode information of the preset UE indicates that the preset UE is in the single-connection mode information, and the third AMF sends the radio access capability of the preset UE to the first RAN;

[0299] When the preset UE is connected to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in the dual-connection mode information, and the third AMF sends the first radio access capability of the preset UE to the first RAN.

[0300] Optionally, the third AMF may also send the correspondence between the radio access capability of the preset UE and the single-connection mode information, and the correspondence between the first radio access capability of the preset UE and the dual-connection mode information to the first RAN.

[0301] It can be understood that the description of the third AMF sending the radio access capability of the preset UE and the first radio access capability of the preset UE to the first RAN according to the working mode information sent by the preset UE here is only an example. In actual applications, it should be set according to the specific application scenario, which is not limited here.

[0302] It should be noted that the descriptions of steps 404 and 405 here are only examples, and there is no clear sequence between steps 404 and 405. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0303] 405. The third AMF sends the radio access capability of the preset UE or the second radio access capability of the preset UE to the second RAN according to the working mode information of the preset UE.

[0304] After the third AMF generates the working mode information of the preset UE, it sends the radio access capability of the preset UE or the first radio access capability of the preset UE to the first RAN according to the working mode information of the preset UE.

[0305] Exemplarily, when the preset UE is connected to the first RAN, the working mode information of the preset UE indicates that the preset UE is in the single-connection mode information, and the third AMF sends the radio access capability of the preset UE to the first RAN.

[0306] When the preset UE is connected to the first RAN and the second RAN, the working mode information of the preset UE indicates that the preset UE is in the dual-connection mode information, and the third AMF sends the first radio access capability of the preset UE to the first RAN.

[0307] Optionally, the third AMF may also send the correspondence between the radio access capability of the preset UE and the single-connection mode information, and the correspondence between the first radio access capability of the preset UE and the dual-connection mode information to the first RAN.

[0308] It can be understood that the description here of the third AMF sending the radio access capability of the preset UE and the first radio access capability of the preset UE to the first RAN according to the working mode information sent by the preset UE is only an example. In actual applications, it should be set according to specific application scenarios, and there is no limitation here.

[0309] It should be noted that the descriptions of steps 404 and 405 here are only examples, and there is no clear sequence between steps 404 and 405. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0310] 406. The first RAN performs radio access configuration with the preset UE according to the radio access capability of the preset UE or the first radio access capability of the preset UE.

[0311] 407. The second RAN performs radio access configuration with the preset UE according to the radio access capability of the preset UE or the second radio access capability of the preset UE.

[0312] Steps 406 and 407 are similar to steps 306 and 307 described above. Figure 3b For the specific implementation method, please refer to the above.Figure 3b The description in will not be elaborated here.

[0313] It should be noted that the descriptions of steps 406 and 407 here are only examples, and there is no definite sequence between steps 406 and 407. In specific application scenarios, it should be set according to specific requirements, and there is no limitation here.

[0314] In the embodiment of the present application, the third AMF collects the radio access capabilities of the preset UE, the first RAN, and the second RAN, and generates the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capabilities of the preset UE, the first RAN, and the second RAN. The third AMF generates the working mode information of the preset UE, and sends the appropriate radio access capabilities of the preset UE to the first RAN and the second RAN according to the working mode information of the preset UE, so as to realize the radio access configuration of the preset UE. The generation of the first radio access capability of the preset UE and the second radio access capability of the preset UE by the third AMF improves the flexibility of the solution implementation.

[0315] Based on Figure 3a the introduced network composition structure, the first RAN can also generate the first radio access capability of the preset UE and the second radio access capability of the preset UE. The following will be combined with Figure 5a and Figure 5b to introduce this scenario:

[0316] From Figure 5a it can be seen that the preset UE is connected to the third AMF through the first RAN, and the preset UE is also connected to the third AMF through the second RAN. Among them, the third AMF is the preset AMF, and the first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE.

[0317] The following will be combined with Figure 5b to introduce the solution provided by the present application:

[0318] 501. The first RAN obtains the radio access capability of the preset UE;

[0319] When the preset UE is connected to the third AMF through the first RAN, the first RAN obtains the radio access capability of the preset UE sent by the preset UE.

[0320] Specifically, the third AMF obtains the radio access capability of the preset UE from the preset UE and sends the radio access capability of the preset UE to the first RAN.

[0321] 502. The third AMF sends the working mode information of the preset UE or the identification information of the second RAN to the first RAN;

[0322] Since the third AMF is responsible for pre-configuring the access management of the UE, the third AMF may send the working mode information of the pre-configured UE or the identification information of the second RAN to the first RAN. Among them, the working mode information of the pre-configured UE indicates the number of RANs connected to the pre-configured UE.

[0323] When the connection state of the pre-configured UE changes, for example, the pre-configured UE changes from the idle state to the connected state, or the pre-configured UE changes from connecting to one RAN to connecting to two RANs, or the pre-configured UE changes from connecting to two RANs to connecting to one RAN, the third AMF may send the working mode information of the pre-configured UE to the first RAN. The working mode information of the pre-configured UE is generated by the third AMF.

[0324] Specifically, when the connection state of the pre-configured UE changes, the third AMF may generate the working mode information of the pre-configured UE according to the connection situation between the pre-configured UE and the RAN, and the working mode information of the pre-configured UE indicates the number of RANs connected to the pre-configured UE.

[0325] Among them, the working mode information of the pre-configured UE may include dual-connection mode information and single-connection mode information. The single-connection mode information indicates that the pre-configured UE is connected to one RAN or the pre-configured UE is connected to the network through one RAN. The dual-connection mode information indicates that the pre-configured UE is connected to two RANs or the pre-configured UE is connected to the network through two RANs. The single-connection mode information may be replaced by the full radio capability indication of the pre-configured UE, or the encoding corresponding to full radio capability, such as, encoding 1, which is not limited here. The dual-connection mode information may be replaced by partial radio capability indication, or the encoding corresponding to partial radio capability, such as, encoding 2 or encoding 3, which is not limited here.

[0326] Specifically, when the pre-configured UE is connected to the first RAN, the third AMF sends the single-connection mode information to the first RAN.

[0327] When the pre-configured UE is connected to the first RAN and the second RAN, the third AMF sends the dual-connection mode information to the first RAN.

[0328] It can be understood that the description of the content of the working mode information of the pre-configured UE here is only an example. In actual applications, it should be set according to the specific application scenario, which is not limited here.

[0329] Specifically, the identification information of the second RAN may be the cell identification or device identification of the second RAN, which is not limited here.

[0330] 503. The first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE;

[0331] When the first RAN obtains the radio access capability of the preset UE and the working mode information of the preset UE is dual-connection mode information, the first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE. Among them, the first radio access capability of the preset UE is a subset of the radio access capability of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capability of the preset UE.

[0332] Furthermore, the first RAN can also obtain the identification information of the second RAN sent by the third AMF. For example, the cell identification corresponding to the second RAN, so that the first RAN can generate the first radio access capability of the preset UE and the second radio access capability of the preset UE by using the radio access capability of the first RAN, the radio access capability of the second RAN, and the radio access capability of the preset UE. The first radio access capability of the preset UE is a subset of the radio access capability of the first RAN, and the second radio access capability of the preset UE is a subset of the radio access capability of the second RAN.

[0333] It can be understood that the description of the first RAN generating the first radio access capability of the preset UE and the second radio access capability of the preset UE here is only an example. In actual applications, it should be set according to the specific application scenario and is not limited here.

[0334] Optionally, the first radio access capability of the preset UE is the radio access capability used when the preset UE connects to the RAN of the first RAT type, and the RAT type of the first RAN is the first RAT type. The second radio access capability of the preset UE is the radio access capability used when the preset UE connects to the RAN of the second RAT type, and the RAT type of the second RAN is the second RAT type. For example, the first RAT type can be the 5G RAT type, and the second RAT type can be the 6G RAT type, which is not limited here.

[0335] 504. The first RAN sends the second radio access capability of the preset UE to the second RAN;

[0336] After the first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE, when the working mode information of the preset UE indicates that the preset UE is in dual-connection mode, the first RAN sends the second radio access capability of the preset UE to the second RAN.

[0337] Optionally, since the RAT type of the second RAN is the second RAT type, the first RAN sends the second radio access capability of the preset UE to the second RAN.

[0338] 505. The first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE;

[0339] After the first RAN generates the first radio access capability of the preset UE and the second radio access capability of the preset UE, when the working mode information of the preset UE indicates that the preset UE is connected to two RANs, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE.

[0340] Specifically, when the preset UE is connected to the first RAN and the second RAN, the first RAN uses the first radio access capability of the preset UE to perform radio access configuration with the preset UE.

[0341] It should be noted that the descriptions of steps 505 and 506 here are only examples, and there is no definite order between steps 505 and 506. In specific application scenarios, it should be set according to specific requirements, and no limitation is made here.

[0342] 506. The second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0343] When the working mode information of the preset UE indicates that the preset UE is connected to two RANs, and after the second RAN receives the second radio access capability of the preset UE sent by the first RAN, it performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0344] Specifically, when the preset UE is connected to the first RAN and the second RAN, the second RAN uses the second radio access capability of the preset UE to perform radio access configuration with the preset UE.

[0345] It should be noted that the descriptions of steps 505 and 506 here are only examples, and there is no definite order between steps 505 and 506. In specific application scenarios, it should be set according to specific requirements, and no limitation is made here.

[0346] In the embodiment of the present application, when the preset UE is connected to two RANs and the preset AMF manages the connections between the two RANs and the preset UE at the same time, the preset AMF also obtains the second radio access capability of the preset UE and sends the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE, where the preset UE is connected to the preset AMF through the second RAN, solving the problem of radio access capability transmission and configuration related to the second RAN when the preset AMF manages the connections between the two RANs and the preset UE at the same time, and improving the integrity of the solution.

[0347] In the embodiment of the present application, the first radio access capability of the preset UE can be the radio access capability generated by the preset AMF, the preset UE or the first RAN. Multiple nodes can generate the first radio access capability of the preset UE, improving the flexibility of the solution implementation.

[0348] The method for communication connection provided in the embodiments of the present application has been introduced above. Next, the device for communication connection provided in the embodiments of the present application will be introduced with reference to the accompanying drawings:

[0349] Please refer to Figure 6 , the device 10 for communication connection includes:

[0350] An obtaining unit 110, configured to obtain the radio access network (RAN) air interface capabilities of a preset user equipment (UE) and the first RAN air interface capabilities of the preset UE. The first RAN air interface capabilities of the preset UE are a subset of the RAN air interface capabilities of the preset UE. The preset UE is connected to a preset access and mobility management function (AMF) through a first RAN;

[0351] The obtaining unit 110 is further configured to obtain the working mode information of the preset UE. The working mode information of the preset UE indicates the number of RANs connected to the preset UE;

[0352] A sending unit 120, configured to send the RAN air interface capabilities of the preset UE, or the first RAN air interface capabilities of the preset UE, to the first RAN according to the working mode information of the preset UE, so that the first RAN performs air interface configuration with the preset UE according to the first RAN air interface capabilities of the preset UE, or the RAN air interface capabilities of the UE.

[0353] Optionally, the sending unit 120 is specifically configured to:

[0354] When the working mode information indicates that the preset UE is connected to two RANs, send the first RAN air interface capabilities of the preset UE to the first RAN according to the working mode information;

[0355] When the working mode information indicates that the preset UE is connected to one RAN, send the RAN air interface capabilities of the preset UE to the first RAN according to the working mode information.

[0356] Optionally, the working mode information includes single-connection mode information or dual-connection mode information. The single-connection mode information indicates that the preset UE is connected to one RAN, and the dual-connection mode information indicates that the preset UE is connected to two RANs;

[0357] The obtaining unit 110 is specifically configured to obtain the single-connection mode information or the dual-connection mode information sent by the preset UE.

[0358] Optionally, the first RAN air interface capabilities of the preset UE are an air interface capability set generated by a first device according to the RAN air interface capabilities of the preset UE. The first device is the preset AMF, the preset UE, or the first RAN.

[0359] Optionally, the obtaining unit 110 is further configured to obtain the second RAN air interface capabilities of the preset UE. The second RAN air interface capabilities of the preset UE are a subset of the RAN air interface capabilities of the preset UE. The preset UE is connected to the preset AMF through a second RAN;

[0360] When the working mode information indicates that the preset UE is connected to two RANs, the sending unit 120 is further configured to send the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0361] Optionally, the obtaining unit 110 is specifically configured to generate the working mode information of the preset UE when the preset UE is connected to the preset AMF through the first RAN and the second RAN respectively, and the working mode information of the preset UE indicates that the preset UE is connected to two RANs.

[0362] Optionally, the first radio access capability of the preset UE is the radio access capability used when the preset UE is connected to the RAN of the first RAT type, and the RAT type of the first RAN is the first RAT type.

[0363] Optionally, the second radio access capability of the preset UE is the radio access capability used when the preset UE is connected to the RAN of the second RAT type, and the RAT type of the second RAN is the second RAT type.

[0364] Figure 7 , the communication connection device 20 includes:

[0365] A generating unit 210, configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE, where the first radio access capability of the preset UE is a subset of the radio access capability of the preset UE, and the second radio access capability of the preset UE is a subset of the radio access capability of the preset UE;

[0366] A processing unit 220, configured to process the first radio access capability of the preset UE and the second radio access capability of the preset UE, so that when the preset UE is connected to the first RAN and the preset UE is connected to the second RAN, the first RAN performs radio access configuration with the preset UE according to the first radio access capability of the preset UE, and the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0367] Optionally, the device further includes an obtaining unit 230, configured to obtain the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN;

[0368] The generating unit 210 is specifically configured to generate the first radio access capability of the preset UE and the second radio access capability of the preset UE according to the radio access capability of the preset UE, the radio access capability of the first RAN, and the radio access capability of the second RAN.

[0369] Optionally, the processing unit 220 is specifically configured to:

[0370] Send the first radio access capability of the preset UE to the first AMF, and the first AMF is responsible for the access management of the preset UE;

[0371] Send the second radio access bearer capability of the preset UE to the second AMF, and the second AMF is responsible for the access management of the preset UE.

[0372] Optionally, the processing unit 220 is specifically configured to send the first radio access bearer capability of the preset UE and the second radio access bearer capability of the preset UE to the preset AMF, and the preset AMF is responsible for the access management of the preset UE.

[0373] Optionally, the apparatus further includes a sending unit 240, configured to send single connection mode information or dual connection mode information to the preset AMF, where the single connection mode information indicates that the preset UE is connected to one RAN, and the dual connection mode information indicates that the preset UE is connected to two RANs.

[0374] Optionally, the first radio access bearer capability of the preset UE is the radio access bearer capability used when the preset UE is connected to a RAN of the first radio access technology (RAT) type, and the second radio access bearer capability of the preset UE is the radio access bearer capability used when the preset UE is connected to a RAN of the second RAT type.

[0375] Figure 8 , a communication-connected apparatus 30, characterized by including:

[0376] A generating unit 310, configured to generate the first radio access bearer capability of the preset UE and the second radio access bearer capability of the preset UE, where the first radio access bearer capability of the preset UE is a subset of the radio access bearer capability of the preset UE, and the second radio access bearer capability of the preset UE is a subset of the radio access bearer capability of the preset UE;

[0377] A processing unit 320, configured to process the first radio access bearer capability of the preset UE and the second radio access bearer capability of the preset UE, so that when the preset UE is connected to the first RAN and the preset UE is connected to the second RAN, the first RAN performs radio access bearer configuration with the preset UE according to the first radio access bearer capability of the preset UE, and the second RAN performs radio access bearer configuration with the preset UE according to the second radio access bearer capability of the preset UE.

[0378] Optionally, the apparatus further includes an obtaining unit 330, configured to obtain the radio access bearer capability of the preset UE, the radio access bearer capability of the first RAN, and the radio access bearer capability of the second RAN;

[0379] The generating unit 310 is configured to generate the first radio access bearer capability of the preset UE and the second radio access bearer capability of the preset UE according to the radio access bearer capability of the preset UE, the radio access bearer capability of the first RAN, and the radio access bearer capability of the second RAN.

[0380] Optionally, the processing unit 320 is specifically configured to:

[0381] Perform radio access bearer configuration with the preset UE according to the first radio access bearer capability of the preset UE;

[0382] Send the second radio access capability of the preset UE to the second RAN, so that the second RAN performs radio access configuration with the preset UE according to the second radio access capability of the preset UE.

[0383] Optionally, the first radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the first radio access technology (RAT) type, and the second radio access capability of the preset UE is the radio access capability used when the preset UE connects to a RAN of the second RAT type.

[0384] Next, please refer to Figure 9 , Figure 9 which is a schematic structural diagram of a communication connection device provided by an embodiment of the present application. The communication connection device 900 includes a processor 910, a memory 920, a communication interface 930, and a bus 940. Among them, the processor 910, the memory 920, and the communication interface 930 communicate through the bus 940, and can also implement communication through other means such as wireless transmission. The memory 920 stores program codes, and the processor 910 can call the program codes stored in the memory 920 to execute the operations performed by the foregoing first AMF, second AMF, or third AMF, so as to implement any communication connection method provided by an embodiment of the present application, which will not be elaborated herein.

[0385] It should be understood that, in the embodiment of the present application, the processor 910 may be a CPU, and the processor 910 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0386] The memory 920 may include a read-only memory and a random access memory, and provide instructions and data to the processor 910. The memory 920 may also include a non-volatile random access memory. For example, the memory 920 may also store information about the device type.

[0387] The memory 920 can be a volatile memory, a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0388] In addition to including a data bus, the bus 940 can also include a power bus, a control bus, a status signal bus, etc. However, for the sake of clarity, all kinds of buses are labeled as the bus 940 in the figure. The bus 940 can be a Peripheral Component Interconnect Express (PCIe) bus, an extended industry standard architecture (EISA) bus, a unified bus (Ubus or UB), a compute express link (CXL), a cache coherent interconnect for accelerators (CCIX), etc. The bus 740 can be divided into an address bus, a data bus, a control bus, etc.

[0389] The communication-connected device 900 may further include one or more communication interfaces, and one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0390] It should be noted that Figure 9 This is merely a possible implementation manner of the embodiments of the present application. In practical applications, the communication-connected device 900 may further include more or fewer components, which are not limited herein. For the content not shown or described in the embodiments of the present application, reference may be made to the foregoing Figure 2b 、 Figure 3b 、 Figure 4b or Figure 5b the description related to AMF in

[0391] Next, please refer to Figure 10 , Figure 10 which is a schematic structural diagram of the communication-connected device provided by the embodiments of the present application. The communication-connected device 1000 includes a processor 1010, a memory 1020, a communication interface 1030, and a bus 1040. Among them, the processor 1010, the memory 1020, and the communication interface 1030 communicate through the bus 1040, and can also achieve communication through other means such as wireless transmission. The memory 1020 stores program codes, and the processor 1010 can call the program codes stored in the memory 1020 to execute the operations performed by the foregoing first AMF, second AMF, or third AMF, so as to implement any communication connection method provided by the embodiments of the present application, which will not be elaborated herein.

[0392] It should be understood that in the embodiments of the present application, the processor 1010 may be a CPU, and the processor 1010 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0393] The memory 1020 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1010. The memory 1020 may further include a non-volatile random access memory. For example, the memory 1020 may also store information about the device type.

[0394] The memory 1020 can be a volatile memory, a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0395] In addition to including a data bus, the bus 1040 can also include a power bus, a control bus, a status signal bus, etc. However, for the sake of clear illustration, all kinds of buses are labeled as bus 1040 in the figure. The bus 1040 can be a Peripheral Component Interconnect Express (PCIe) bus, an extended industry standard architecture (EISA) bus, a unified bus (Ubus or UB), a compute express link (CXL), a cache coherent interconnect for accelerators (CCIX), etc. The bus 740 can be divided into an address bus, a data bus, a control bus, etc.

[0396] The communication-connected device 1000 may also include one or more communication interfaces, and one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0397] It should be noted that Figure 10 This is merely a possible implementation manner of the embodiments of the present application. In practical applications, the communication-connected device 1000 may also include more or fewer components, which are not limited here. For the content not shown or described in the embodiments of the present application, reference may be made to the foregoing Figure 2b 、 Figure 3b 、 Figure 4b or Figure 5b for the preset UE-related descriptions, which will not be elaborated here.

[0398] Next, please refer to Figure 11 , Figure 11 which is a schematic structural diagram of the communication-connected device provided by the embodiments of the present application. The communication-connected device 1100 includes a processor 1110, a memory 1120, a communication interface 1130, and a bus 1140. Among them, the processor 1110, the memory 1120, and the communication interface 1130 communicate through the bus 1140, and can also communicate through other means such as wireless transmission. The memory 1120 stores program codes, and the processor 1110 can call the program codes stored in the memory 1120 to execute the operations performed by the foregoing first AMF, second AMF, or third AMF, so as to implement any communication connection method provided by the embodiments of the present application, which will not be elaborated here.

[0399] It should be understood that in the embodiments of the present application, the processor 1110 may be a CPU, and the processor 1110 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0400] The memory 1120 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1110. The memory 1120 may also include a non-volatile random access memory. For example, the memory 1120 may also store information about the device type.

[0401] The memory 1120 can be a volatile memory, a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0402] In addition to including a data bus, the bus 1140 can also include a power bus, a control bus, a status signal bus, etc. However, for the sake of clear illustration, all kinds of buses are labeled as bus 1140 in the figure. The bus 1140 can be a Peripheral Component Interconnect Express (PCIe) bus, an extended industry standard architecture (EISA) bus, a unified bus (Ubus or UB), a compute express link (CXL), a cache coherent interconnect for accelerators (CCIX), etc. The bus 740 can be divided into an address bus, a data bus, a control bus, etc.

[0403] The communicatively connected device 1100 may further include one or more communication interfaces and one or more operating systems such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0404] It should be noted that Figure 11 This is merely a possible implementation manner of the embodiments of the present application. In actual applications, the communicatively connected device 1100 may further include more or fewer components, which are not limited herein. For the content not shown or described in the embodiments of the present application, reference may be made to the foregoing Figure 2b 、 Figure 3b 、 Figure 4b or Figure 5b the description related to the first RAN, which will not be elaborated herein.

[0405] The embodiments of the present application further provide a computer-readable storage medium, including computer-readable instructions, which when running on a computer, cause the computer to execute any implementation manner shown in the foregoing method embodiments.

[0406] The embodiments of the present application further provide a computer program product, which includes a computer program or instructions, which when running on a computer, cause the computer to execute any implementation manner shown in the foregoing method embodiments.

[0407] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be elaborated herein.

[0408] In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the couplings or direct couplings or communicative connections shown or discussed with each other can be through some interfaces, and the indirect couplings or communicative connections of devices or units can be in electrical, mechanical, or other forms.

[0409] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0410] In addition, each functional unit in various embodiments of the present application may be integrated into one processing unit, may exist separately as individual physical units, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software functional units.

[0411] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, read-only memory), random access memories (RAM, random access memory), magnetic disks, or optical discs.

Claims

1. A method for communication connection, characterized in that, comprising: A preset access and mobility management function device obtains the radio access capability of a preset terminal and the first radio access capability of the preset terminal. The first radio access capability of the preset UE is a subset of the radio access capability of the preset terminal. The preset terminal is connected to the preset access and mobility management function device through a first access network device; The preset access and mobility management function device obtains the working mode information of the preset terminal. The working mode information of the preset terminal indicates the number of access network devices connected to the preset terminal; The preset access and mobility management function device sends the radio access capability of the preset terminal, or the first radio access capability of the preset terminal, to the first access network device according to the working mode information of the preset terminal, so that the first access network device performs radio access configuration with the preset terminal according to the first radio access capability of the preset terminal, or the radio access capability of the terminal.

2. The method according to claim 1, characterized in that, The preset access and mobility management function device sends the radio access capability of the preset terminal, or the first radio access capability of the preset terminal, to the first access network device according to the working mode information of the preset terminal, including: When the working mode information indicates that the preset terminal is connected to two access network devices, the preset access and mobility management function device sends the first radio access capability of the preset terminal to the first access network device according to the working mode information; When the working mode information indicates that the preset terminal is connected to one access network device, the preset access and mobility management function device sends the radio access capability of the preset terminal to the first access network device according to the working mode information.

3. The method according to claim 1 or 2, characterized in that, The working mode information includes single connection mode information or dual connection mode information. The single connection mode information indicates that the preset terminal is connected to one access network device, and the dual connection mode information indicates that the preset terminal is connected to two access network devices; The preset access and mobility management function device obtains the working mode information of the preset terminal, including: The preset access and mobility management function device obtains the single connection mode information or the dual connection mode information sent by the preset terminal.

4. The method according to any one of claims 1 to 3, characterized in that, The first radio access capability of the preset terminal is a radio access capability set generated by a first device according to the radio access capability of the preset terminal. The first device is the preset access and mobility management function device, the preset terminal or the first access network device.

5. The method according to claim 1 or 2, characterized in that, The method further includes: The preset access and mobility management function device obtains the second radio access capability of the preset terminal. The second radio access capability of the preset terminal is a subset of the radio access capability of the preset terminal. The preset terminal is connected to the preset access and mobility management function device through a second access network device; When the working mode information indicates that the preset terminal is connected to two access network devices, the preset access and mobility management function device also sends the second radio access capability of the preset terminal to the second access network device, so that the second access network device performs radio access configuration with the preset terminal according to the second radio access capability of the preset terminal.

6. The method according to claim 1 or 2, wherein, the preset access and mobility management function device obtaining the working mode information of the preset terminal includes: when the preset terminal is connected to the preset access and mobility management function device through the first access network device and the second access network device respectively, the access and mobility management device generates the working mode information of the preset terminal, and the working mode information of the preset terminal indicates that the preset terminal is connected to two access network devices.

7. The method according to any one of claims 1 to 6, wherein, the first radio access capability of the preset terminal is the radio access capability used when the preset terminal is connected to an access network device of a first radio access technology type, and the radio access technology type of the first access network device is the first radio access technology type.

8. The method according to claim 5, wherein, the second radio access capability of the preset terminal is the radio access capability used when the preset terminal is connected to an access network device of a second radio access technology type, and the radio access technology type of the second access network device is the second radio access technology type.

9. A method for communication connection, wherein, comprises: a preset terminal generating a first radio access capability of the preset terminal and a second radio access capability of the preset terminal, the first radio access capability of the preset terminal being a subset of the radio access capabilities of the preset terminal, and the second radio access capability of the preset terminal being a subset of the radio access capabilities of the preset terminal; the preset terminal processing the first radio access capability of the preset terminal and the second radio access capability of the preset terminal, so that when the preset terminal is connected to a first access network device and the preset terminal is connected to a second access network device, the first access network device performs radio access configuration with the preset terminal according to the first radio access capability of the preset terminal, and the second access network device performs radio access configuration with the preset terminal according to the second radio access capability of the preset terminal.

10. The method according to claim 9, wherein, the method further comprises: the preset terminal obtaining the radio access capabilities of the preset terminal, the first access network device, and the second access network device; the preset terminal generating the first radio access capability of the preset terminal and the second radio access capability of the preset terminal includes: the preset terminal generating the first radio access capability of the preset terminal and the second radio access capability of the preset terminal according to the radio access capabilities of the preset terminal, the first access network device, and the second access network device.

11. The method according to claim 9 or 10, wherein, The preset terminal processes the first radio access capability and the second radio access capability of the preset terminal, including: The preset terminal sends the first radio access capability of the preset terminal to a first access and mobility management device, and the first access and mobility management device is responsible for the access management of the preset terminal; The preset terminal sends the second radio access capability of the preset terminal to a second access and mobility management device, and the second access and mobility management device is responsible for the access management of the preset terminal.

12. The method according to claim 9 or 10, wherein, The preset terminal processes the first radio access capability and the second radio access capability of the preset terminal, including: The preset terminal sends the first radio access capability and the second radio access capability of the preset terminal to a preset access and mobility management function device, and the preset access and mobility management function device is responsible for the access management of the preset terminal.

13. The method according to claim 9 or 10, wherein, The method further includes: The preset terminal sends single connection mode information or dual connection mode information to the preset access and mobility management function device, the single connection mode information indicates that the preset terminal is connected to one access network device, and the dual connection mode information indicates that the preset terminal is connected to two access network devices.

14. The method according to any one of claims 9 to 13, wherein, The first radio access capability of the preset terminal is the radio access capability used when the preset terminal is connected to an access network device of a first radio access technology type, and the second radio access capability of the preset terminal is the radio access capability used when the preset terminal is connected to an access network device of a second radio access technology type.

15. A method for communication connection, wherein, includes: A first access network device generates a first radio access capability and a second radio access capability of a preset terminal, the first radio access capability of the preset terminal is a subset of the radio access capability of the preset terminal, and the second radio access capability of the preset terminal is a subset of the radio access capability of the preset terminal; The first access network device processes the first radio access capability and the second radio access capability of the preset terminal, so that when the preset terminal is connected to the first access network device and the preset terminal is connected to a second access network device, the first access network device performs radio access configuration with the preset terminal according to the first radio access capability of the preset terminal, and the second access network device performs radio access configuration with the preset terminal according to the second radio access capability of the preset terminal.

16. The method according to claim 15, wherein, The method further includes: The first access network device obtains the radio access capability of the preset terminal, the radio access capability of the first access network device, and the radio access capability of the second access network device; The first access network device generates a first radio access capability and a second radio access capability of the preset terminal, including: The first access network device generates a first air interface capability and a second air interface capability of the preset terminal according to the air interface capabilities of the preset terminal, the first access network device, and the second access network device.

17. The method according to claim 15 or 16, wherein, the first access network device processes the first air interface capability and the second air interface capability of the preset terminal, including: the first access network device performs air interface configuration with the preset terminal according to the first air interface capability of the preset terminal; the first access network device sends the second air interface capability of the preset terminal to the second access network device, so that the second access network device performs air interface configuration with the preset terminal according to the second air interface capability of the preset terminal.

18. The method according to any one of claims 15 to 17, wherein, the first air interface capability of the preset terminal is the air interface capability used when the preset terminal is connected to an access network device of a first radio access technology type, and the second air interface capability of the preset terminal is the air interface capability used when the preset terminal is connected to an access network device of a second radio access technology type.

19. A communication connection device, wherein, comprising: an acquisition unit, configured to acquire the air interface capabilities of the preset terminal and the first air interface capability of the preset terminal, the first air interface capability of the preset terminal being a subset of the air interface capabilities of the preset terminal, and the preset terminal being connected to the preset access and mobility management function device through a first access network device; the acquisition unit is further configured to acquire the working mode information of the preset terminal, and the working mode information of the preset terminal indicates the number of access network devices connected to the preset terminal; a sending unit, configured to send the air interface capability of the preset terminal, or the first air interface capability of the preset terminal, to the first access network device according to the working mode information of the preset terminal, so that the first access network device performs air interface configuration with the preset terminal according to the first air interface capability of the preset terminal, or the air interface capability of the terminal.

20. A communication connection device, wherein, comprising: a generation unit, configured to generate a first air interface capability and a second air interface capability of the preset terminal, the first air interface capability of the preset terminal being a subset of the air interface capabilities of the preset terminal, and the second air interface capability of the preset terminal being a subset of the air interface capabilities of the preset terminal; a processing unit, configured to process the first air interface capability and the second air interface capability of the preset terminal, so that when the preset terminal is connected to a first access network device and the preset terminal is connected to a second access network device, the first access network device performs air interface configuration with the preset terminal according to the first air interface capability of the preset terminal, and the second access network device performs air interface configuration with the preset terminal according to the second air interface capability of the preset terminal.

21. A communication connection device, wherein, comprising: A generating unit, configured to generate a first radio interface capability of a preset terminal and a second radio interface capability of the preset terminal, where the first radio interface capability of the preset terminal is a subset of the radio interface capabilities of the preset terminal, and the second radio interface capability of the preset terminal is a subset of the radio interface capabilities of the preset terminal; A processing unit, configured to process the first radio interface capability of the preset terminal and the second radio interface capability of the preset terminal, so that when the preset terminal is connected to the first access network device and the preset terminal is connected to the second access network device, the first access network device performs radio interface configuration with the preset terminal according to the first radio interface capability of the preset terminal, and the second access network device performs radio interface configuration with the preset terminal according to the second radio interface capability of the preset terminal.

22. A communication connection device, characterized in that, it includes a processor and a memory, the processor is coupled to the memory, and characterized in that the memory is used to store a program; the processor is configured to execute the program in the memory, so that the method described in any one of claims 1 to 8 is executed.

23. A communication connection device, characterized in that, it includes a processor and a memory, the processor is coupled to the memory, and characterized in that the memory is used to store a program; the processor is configured to execute the program in the memory, so that the method described in any one of claims 9 to 14 is executed.

24. A communication connection device, characterized in that, it includes a processor and a memory, the processor is coupled to the memory, and characterized in that the memory is used to store a program; the processor is configured to execute the program in the memory, so that the method described in any one of claims 15 to 18 is executed.

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