Communication connection method and apparatus

Abstract

Embodiments of the present application provide a communication connection method and apparatus, for use in simultaneously establishing connections between one terminal and a plurality of access network devices, so as to improve the communication connection reliability of the terminal device. According to the present application, an access and mobility management function device acquires an air interface capability of a terminal and a first air interface capability of the terminal, 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 by means of a first access network device. After acquiring working mode information of the terminal, the access and mobility management function device sends to the first access network device the air interface capability of the terminal or the first air interface capability of the terminal on the basis of the working mode information of the terminal, so that the first access network device performs air interface configuration with the terminal on the basis of the first air interface capability of the terminal or the air interface capability of the terminal. In this way, the situation that air interface resources cannot be reasonably configured when a terminal is simultaneously connected to a plurality of access network devices is avoided, thereby improving the communication connection reliability of the terminal.

Description

A communication connection method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 29, 2023, with application number 202311622112.6 and application name “A method and device for communication connection”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communications, and in particular to a method and apparatus for communication connection. Background Art

[0003] In wireless communication technology, when a terminal accesses a network, it needs to report its terminal capability information to the network. The network can configure the terminal based on the terminal capability information and coordinate the signaling message transmission method between the terminal and the base station. For example, the terminal reports its terminal air interface capability (UE Radio Capability) information to the access and mobility management function (AMF). Since the terminal air interface capability information has a large capacity and needs to be used every time the terminal switches from idle state to connected state, in order to reduce the repeated transmission cost of the terminal air interface capability information, the AMF stores the terminal air interface capability information after obtaining it. When the terminal changes from idle state to connected state, it connects to the AMF through the access network (RAN). The AMF sends the terminal air interface capability information to the RAN. The RAN uses the terminal air interface capability information to reasonably configure the terminal's air interface resources to achieve wireless connection between the terminal and the RAN.

[0004] When a terminal connects to two RANs simultaneously, it establishes wireless connections with both RANs, sharing the terminal's air interface capabilities. Therefore, how to properly allocate the air interface resources of each RAN to the terminal is an urgent issue.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a method and apparatus for communication connection, which are used to enable a terminal to establish connections with multiple RAN devices at the same time, so as to improve the communication connection reliability of the terminal device.

[0007] One aspect of the present application provides a communication connection method, comprising:

[0008] The preset AMF obtains the air interface capabilities of the preset terminal UE and the first air interface capabilities of the preset UE, where the first air interface capabilities of the preset UE are a subset of the air interface capabilities of the preset UE, and the preset UE is connected to the preset AMF through the first RAN;

[0009] The preset AMF obtains 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;

[0010] The preset 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 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 UE.

[0011] In the embodiment of the present application, the terminal's air interface capabilities and the terminal's first air interface capabilities are obtained through the AMF, where the terminal's first air interface capabilities are a subset of the terminal's air interface capabilities. The terminal can connect to the AMF through the first RAN. After obtaining the terminal's working mode information, the AMF sends the terminal's air interface capabilities or the terminal's first air interface capabilities to the first RAN based on the number of RANs connected to the terminal as indicated by the terminal's working mode information, so that the first RAN performs air interface configuration with the terminal based on the terminal's first air interface capabilities or the terminal's air interface capabilities. This avoids the situation where air interface resources cannot be reasonably configured when the terminal is connected to multiple RANs at the same time, makes it possible for the terminal to connect to multiple RANs for data transmission at the same time, and improves the reliability of the terminal's communication connection.

[0012] In a possible implementation of the first aspect, the preset AMF sends the preset UE air interface capabilities, or the preset UE first air interface capabilities, to the first RAN according to the preset UE working mode information, including:

[0013] 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 according to the working mode information;

[0014] When the working mode information indicates that the preset UE is connected to a RAN, the preset AMF sends the air interface capabilities of the preset UE to the first RAN according to the working mode information.

[0015] In an embodiment 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 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 air interface capabilities of the preset UE to the first RAN. Different air interface capabilities are flexibly sent to the first RAN according to the number of RANs connected by the preset UE, so that the first RAN can reasonably configure the air interface between the preset UE and the preset UE based on the air interface capabilities, thereby improving the flexibility and feasibility of the solution.

[0016] In a possible implementation of the first aspect, the operating 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;

[0017] The preset AMF obtains the preset UE working mode information, including:

[0018] The preset AMF obtains the single connection mode information or dual connection mode information sent by the preset UE.

[0019] 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 air interface capability processing mode based on the number of RANs to which the preset UE is connected. This helps to accurately allocate accurate air interface capabilities to the RAN based on the actual connection status of the preset UE, thereby achieving flexible switching between a single RAN connection and multiple RAN connections for the preset UE, thereby ensuring the accuracy of the solution while improving the flexibility of the solution.

[0020] In a possible implementation of the first aspect, the first air interface capability of the preset UE is an air interface capability set generated by the first device according to the air interface capability of the preset UE, and the first device is a preset AMF, a preset UE, or a first RAN.

[0021] In an embodiment of the present application, the first air interface capability of the preset UE may be an air interface capability generated by a preset AMF, a preset UE, or a first RAN. Multiple nodes may generate the first air interface capability of the preset UE, thereby improving the flexibility of the implementation of the solution.

[0022] In a possible implementation of the first aspect, the method further includes:

[0023] The preset AMF obtains the second air interface capability of the preset UE, where the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the preset UE is connected to the preset AMF through the second RAN;

[0024] When the working mode information indicates that the preset UE is connected to two RANs, the preset AMF also sends the second air interface capabilities of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capabilities of the preset UE.

[0025] In an embodiment of the present application, when the preset UE is connected to two RANs and the preset AMF simultaneously manages the connections between the two RANs and the preset UE, the preset AMF also obtains the second air interface capabilities of the preset UE and sends the second air interface capabilities of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE. The preset UE is connected to the preset AMF through the second RAN, which solves the problem of air interface capability transmission and configuration related to the second RAN when the preset AMF simultaneously manages the connections between the two RANs and the preset UE, thereby improving the integrity of the solution.

[0026] In a possible implementation of the first aspect, the preset AMF obtains the preset UE operating mode information, including:

[0027] When the preset UE is connected to the preset AMF through the first RAN and the 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 the two RANs.

[0028] In an embodiment of the present application, the way in which the preset AMF obtains the working mode information of the preset UE includes the AMF generating the working mode information of the preset UE according to the connection status between the preset UE and the RAN. The working mode information of the preset UE can be obtained in a variety of ways, thereby improving the flexibility of the implementation of the solution.

[0029] In a possible implementation of the first aspect, the preset first air interface capability of the UE is an air interface 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.

[0030] In an embodiment of the present application, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first RAT type. The first air interface capability of the preset UE is used when the preset UE is connected to the first RAN, that is, the RAT type of the first RAN is the first RAT type. The air interface capability of the preset UE is stored and used according to the RAT type of the RAN, so that the RANs of the same RAT type have similar air interface resources, which can fully utilize the air interface capability types that the preset AMF needs to store, and reduce the storage space occupied by the preset AMF.

[0031] In a possible implementation of the first aspect, the preset second air interface capability of the UE is an air interface 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 a second RAT type.

[0032] A second aspect of the present application provides a communication connection method, comprising:

[0033] The preset terminal UE generates a first air interface capability of the preset UE and a second air interface capability of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0034] The preset UE processes the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0035] In a possible implementation of the second aspect, the method further includes:

[0036] The preset UE obtains the air interface capability of the preset UE, the air interface capability of the first RAN, and the air interface capability of the second RAN;

[0037] The preset UE generates the first air interface capability of the preset UE and the second air interface capability of the preset UE, including:

[0038] The preset UE generates first air interface capabilities of the preset UE and second air interface capabilities 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.

[0039] In a possible implementation of the second aspect, the presetting the UE to process the first air interface capability of the presetting UE and the second air interface capability of the presetting UE includes:

[0040] The preset UE sends the first air interface capability of the preset UE to the first AMF, and the first AMF is responsible for access management of the preset UE;

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

[0042] In a possible implementation of the second aspect, presetting the UE to process the first air interface capability of the predefined UE and the second air interface capability of the predefined UE includes:

[0043] The preset UE sends the first air interface capability of the preset UE and the second air interface capability of the preset UE to the preset AMF, and the preset AMF is responsible for access management of the preset UE.

[0044] In a possible implementation of the second aspect, the method further includes:

[0045] The preset UE sends 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.

[0046] In a possible implementation of the second aspect, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first radio access technology RAT type, and the second air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the second RAT type.

[0047] A third aspect of the present application provides a communication connection method, comprising:

[0048] The first RAN generates a first air interface capability of the preset UE and a second air interface capability of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0049] The first RAN processes the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0050] In a possible implementation of the third aspect, the method further includes:

[0051] The first RAN obtains 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;

[0052] The first RAN generates a first air interface capability of a preset UE and a second air interface capability of the preset UE, including:

[0053] The first RAN generates the first air interface capabilities of the preset UE and the second air interface capabilities 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.

[0054] In a possible implementation of the third aspect, the first RAN processes the preset first air interface capability of the UE and the preset second air interface capability of the UE, including:

[0055] The first RAN performs air interface configuration with the preset UE according to the first air interface capability of the preset UE;

[0056] The first RAN sends the second air interface capability of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0057] In a possible implementation of the third aspect, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first radio access technology RAT type, and the second air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the second RAT type.

[0058] A fourth aspect of the present application provides a communication connection device, including:

[0059] an acquiring unit, configured to acquire an air interface capability of a preset terminal UE and a first air interface capability of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the preset UE is connected to the preset AMF through the first RAN;

[0060] The acquiring unit is further configured to acquire working mode information of a preset UE, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE;

[0061] The sending unit is configured to send the preset UE's air interface capabilities, or the preset UE's first air interface capabilities, to the first RAN according to the preset UE's working mode information, so that the first RAN performs air interface configuration with the preset UE according to the preset UE's first air interface capabilities, or the UE's air interface capabilities.

[0062] In a possible implementation of the fourth aspect, the sending unit is specifically configured to:

[0063] When the working mode information indicates that the preset UE is connected to two RANs, sending the first air interface capability of the preset UE to the first RAN according to the working mode information;

[0064] When the working mode information indicates that the preset UE is connected to a RAN, the air interface capability of the preset UE is sent to the first RAN according to the working mode information.

[0065] In a possible implementation of the fourth aspect, the operating 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;

[0066] The acquiring unit is specifically configured to acquire single connection mode information or dual connection mode information sent by a preset UE.

[0067] In a possible implementation of the fourth aspect, the first air interface capability of the preset UE is an air interface capability set generated by the first device according to the air interface capability of the preset UE, and the first device is a preset AMF, a preset UE or a first RAN.

[0068] In a possible implementation of the fourth aspect, the acquiring unit is further configured to acquire a second air interface capability of a preset UE, where the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the preset UE is connected to the preset AMF through the second RAN;

[0069] 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 air interface capability of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0070] In a possible implementation of the fourth aspect, the acquiring unit is specifically configured to generate 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, where the working mode information of the preset UE indicates that the preset UE is connected to the two RANs.

[0071] In a possible implementation of the fourth aspect, the preset first air interface capability of the UE is an air interface 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.

[0072] In a possible implementation of the fourth aspect, the preset second air interface capability of the UE is an air interface 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 a second RAT type.

[0073] A fifth aspect of the present application provides a communication connection device, including:

[0074] a generating unit, configured to generate a first air interface capability of a preset UE and a second air interface capability of the preset UE, wherein the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0075] a processing unit, configured to process the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0076] In a possible implementation of the fifth aspect, the apparatus further includes an acquisition unit, configured to acquire 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;

[0077] The generating unit is specifically configured to generate the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capability of the preset UE, the air interface capability of the first RAN and the air interface capability of the second RAN.

[0078] In a possible implementation of the fifth aspect, the processing unit is specifically configured to:

[0079] Send the first air interface capability of the preset UE to the first AMF, and the first AMF is responsible for access management of the preset UE;

[0080] The second air interface capability of the preset UE is sent to the second AMF, and the second AMF is responsible for access management of the preset UE.

[0081] In a possible implementation of the fifth aspect, the processing unit is specifically used to send the first air interface capability of the preset UE and the second air interface capability of the preset UE to the preset AMF, and the preset AMF is responsible for access management of the preset UE.

[0082] 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 the preset UE is connected to one RAN, and the dual connection mode information indicates that the preset UE is connected to two RANs.

[0083] In a possible implementation of the fifth aspect, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first radio access technology RAT type, and the second air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the second RAT type.

[0084] A sixth aspect of the present application provides a communication connection device, including:

[0085] a generating unit, configured to generate a first air interface capability of a preset UE and a second air interface capability of the preset UE, wherein the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0086] a processing unit, configured to process the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0087] In a possible implementation of the sixth aspect, the apparatus further includes an acquisition unit, configured to acquire 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;

[0088] The generating unit is configured to generate the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capability of the preset UE, the air interface capability of the first RAN, and the air interface capability of the second RAN.

[0089] In a possible implementation of the sixth aspect, the processing unit is specifically configured to:

[0090] Performing air interface configuration with the preset UE according to the first air interface capability of the preset UE;

[0091] The second air interface capability of the preset UE is sent to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0092] In a possible implementation of the sixth aspect, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first radio access technology RAT type, and the second air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the second RAT type.

[0093] A seventh aspect of the present application provides a communication connection device, comprising a processor and a memory, the processor being coupled to the memory, the memory being configured to store a program;

[0094] A processor is used to execute the program in the memory so as to perform the method as described in the first aspect or a possible implementation of the first aspect.

[0095] In an eighth aspect, the present application provides a communication connection device, comprising a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store a program;

[0096] The processor is used to execute the program in the memory so as to perform the method as described in the second aspect or a possible implementation of the second aspect.

[0097] A ninth aspect of the present application provides a communication connection device, comprising a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store a program;

[0098] A processor is used to execute the program in the memory so as to perform the method as described in the third aspect or a possible implementation of the third aspect.

[0099] The tenth aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when executed on a computer, enables the computer to execute the method as described in the first aspect or a possible implementation of the first aspect.

[0100] The eleventh aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when executed on a computer, enables the computer to execute the method as described in the second aspect or a possible implementation of the second aspect.

[0101] A twelfth aspect of the embodiments of the present application provides a computer-readable storage medium, including a program, which, when executed on a computer, enables the computer to execute a method as described in the third aspect or a possible implementation of the third aspect.

[0102] A thirteenth aspect of the embodiments of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method as described in the aforementioned embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] FIG1 is a schematic diagram of an architecture of a 5G communication system provided in an embodiment of the present application;

[0104] FIG2a is a schematic diagram of a network structure provided in an embodiment of the present application;

[0105] FIG2 b is a flow chart of a communication connection method provided in an embodiment of the present application;

[0106] FIG3a is another schematic diagram of a network structure provided in an embodiment of the present application;

[0107] FIG3 b is another schematic flow chart of a communication connection method provided in an embodiment of the present application;

[0108] FIG4a is another schematic diagram of a network structure provided in an embodiment of the present application;

[0109] FIG4 b is another schematic flow chart of a communication connection method provided in an embodiment of the present application;

[0110] FIG5a is another schematic diagram of a network structure provided in an embodiment of the present application;

[0111] FIG5 b is another schematic flow chart of a communication connection method provided in an embodiment of the present application;

[0112] FIG6 is a schematic structural diagram of a device for providing communication connection according to an embodiment of the present application;

[0113] FIG7 is another schematic diagram of the structure of an apparatus for providing communication connection according to an embodiment of the present application;

[0114] FIG8 is another schematic structural diagram of an apparatus for providing communication connection according to an embodiment of the present application;

[0115] FIG9 is another schematic structural diagram of an apparatus for providing communication connection according to an embodiment of the present application;

[0116] FIG10 is another schematic structural diagram of an apparatus for providing communication connection according to an embodiment of the present application;

[0117] FIG11 is another structural diagram of a device for providing a communication connection according to an embodiment of the present application. DETAILED DESCRIPTION

[0118] Embodiments of the present application provide a method and apparatus for communication connection, which are used to enable a terminal to establish connections with multiple RAN devices at the same time, thereby improving the reliability of the terminal's communication connection.

[0119] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the numbers used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "corresponding to" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0120] To facilitate understanding of the technical solutions provided by the embodiments of the present application, here is a brief introduction to some communication system architectures involved in the embodiments of the present application:

[0121] Please refer to Figure 1, which shows the architecture of the 5G communication system provided in an embodiment of the present application.

[0122] The 5G system architecture is shown in Figure 1. The 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).

[0123] Among them, UE, RAN, UPF and DN are data plane network function entities. The user's data traffic can be transmitted through the protocol data unit session (PDU) session established between UE and DN. During the data transmission process, it will pass through the two network function entities of RAN and UPF. 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.

[0124] Terminal device: This can be a UE, handheld terminal, laptop, cellular phone, smartphone, tablet computer, handheld device, AR device, VR device, machine type communication terminal, or other device that can access the network. Terminal devices and access network equipment communicate with each other using an air interface technology (such as NR or LTE). Terminal devices can also communicate with each other using an air interface technology (such as NR or LTE). In vehicle-to-vehicle communication, the communication terminal onboard a vehicle is a terminal device, and the roadside unit (RSU) can also be a terminal device. Drones carry communication terminals and can be considered a terminal device.

[0125] RAN equipment: This equipment is primarily responsible for air interface functions such as radio resource management, quality of service management, data compression, and encryption. Access network equipment can include various base stations, such as macro base stations, micro base stations, relay stations, and access points. In systems using different wireless access technologies, the name of the device with base station functionality may vary. For example, in fifth-generation (5G) systems, it is called a gNB. In a service-oriented access network architecture, RAN equipment can also be replaced by access network function (ANF) network elements.

[0126] AMF network element: A core network element, primarily responsible for signaling processing, such as access control, mobility management, attach and detach, and gateway selection. When the AMF network element provides services for a session in a terminal device, it provides control plane storage resources for the session to store the session identifier and the SMF network element identifier associated with the session identifier.

[0127] The UPF network element is responsible for forwarding and receiving user data from terminal devices. It receives user data from the data network and transmits it to the terminal device via the access network equipment. The UPF network element also receives user data from the terminal device via the access network equipment and forwards it to the data network. The transmission resources and scheduling functions provided by the UPF network element to the terminal device are managed and controlled by the SMF network element.

[0128] NEF network element: mainly supports the secure interaction between 3GPP networks and third-party applications.

[0129] 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.

[0130] PCF network element: responsible for policy control decisions, providing policy rules for control plane functions, and flow-based charging control functions.

[0131] NSSF network element: Mainly responsible for network slice selection, determining the network slice instance that the UE is allowed to access based on the UE's slice selection auxiliary information, contract information, etc.

[0132] UDM network element: Mainly responsible for UE subscription data management, including storage and management of UE identification, UE access authorization, etc.

[0133] AUSF network element: supports 3GPP and non-3GPP access authentication.

[0134] Network repository function (NRF) network element: supports registration and discovery of network functions.

[0135] Unified data repository (UDR) network element: stores and retrieves contract data used by UDM and PCF.

[0136] Network data analytics function (NWDAF) network element: supports collecting data from other network functions and AF; supports collecting data from OAM; supports providing analysis information to other network functions and AF.

[0137] The terminal is connected to two RANs simultaneously. When a UE is connected to two RANs simultaneously, the AMF sends the UE Radio Capability to both RANs. Each RAN then configures the air interface capabilities with the terminal based on the UE Radio Capability. Because both RANs configure the terminal's UE Radio Capability simultaneously, configuration fails. Resolving this configuration issue, enabling the UE to connect to two RANs simultaneously and thus improving the reliability of the UE's communication connection, has become a pressing issue.

[0138] To achieve the above objectives, the present application proposes that the air interface capabilities and second air interface capabilities of a preset UE can be obtained through a preset AMF. 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 connect to the preset AMF through a first RAN. The preset AMF obtains the working mode information of the preset UE, that is, the number of RANs to which the preset UE is connected, and selects to send the air interface capabilities of the preset UE, or the first air interface capabilities of the preset UE, to the first RAN based on the number of RANs to which the preset UE is connected. This allows the first RAN to perform air interface configuration with the preset UE based on the air interface capabilities of the preset UE, or the first air interface capabilities of the preset UE. When the number of RANs to which the UE is connected is different, different air interface configurations are performed with the UE using different air interface resources, thereby achieving the purpose of the UE being connected to multiple RANs at the same time and communicating, thereby improving the reliability of the UE's communication connection.

[0139] Since there are many 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.

[0140] First, with reference to Figures 2a and 2b, the solution proposed in this application is introduced for a scenario in which 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:

[0141] As can be seen from Figure 2a, 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.

[0142] The solution provided by this application is introduced below in conjunction with FIG2b:

[0143] 201. The preset UE generates a first air interface capability of the preset UE and a second air interface capability of the preset UE;

[0144] The preset UE generates a first air interface capability (partial radio capability info 1) of the preset UE and a second air interface capability (partial radio capability info 2) of the preset UE, wherein the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE.

[0145] Optionally, the preset UE generates a first air interface capability of the preset UE and a second air interface capability of the preset UE based on the air interface capability of the preset UE. The air interface capability of the preset UE may be information about the radio access technology supported by the preset UE (for example, power class, frequency band, and number of MIMO layers). Taking the air interface capability of the preset UE as an example, if the air interface capability of the preset UE is frequency bands f1 and f2, the first air interface capability of the preset UE is frequency band f1, and the second air interface capability of the preset UE is frequency band f2.

[0146] Optionally, the first RAN supports the first air interface capabilities of the preset UE, and the second RAN supports the second air interface capabilities of the preset UE. That is, the first air interface capabilities of the preset UE are still a subset of the air interface capabilities of the first RAN, and the second air interface capabilities of the preset UE are still a subset of the air interface capabilities of the second RAN.

[0147] In addition, the air interface capabilities of the preset UE include all air interface capabilities supported by the preset UE, the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE are partial air interface capabilities of the preset UE, and the first air interface capabilities of the preset UE are associated with the RAT of the RAN to which the preset UE is connected, and the second air interface capabilities of the preset UE are associated with the RAT to which the preset UE is connected.

[0148] Exemplarily, the preset first air interface capabilities of the UE are the air interface capabilities used when the UE is connected to a RAN of a first RAT type, where the RAT type of the first RAN is the first RAT type. The preset second air interface capabilities of the UE are the air interface capabilities used when the UE is connected to a RAN of a second RAT type, where 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, without limitation herein.

[0149] In an embodiment of the present application, the first air interface capability of the preset UE is the air interface capability used when the preset UE is connected to the RAN of the first RAT type. The first air interface capability of the preset UE is used when the preset UE is connected to the first RAN, that is, the RAT type of the first RAN is the first RAT type. The air interface capability of the preset UE is stored and used according to the RAT type of the RAN, so that the RANs of the same RAT type have similar air interface resources, which can fully utilize the air interface capability types that the preset AMF needs to store, and reduce the storage space occupied by the preset AMF.

[0150] It can be understood that the description of the first air interface capability of the preset UE and the second air interface capability of the preset UE generated by the preset UE, and the description of the first RAT type and the second RAT type are only examples. In actual applications, they should be set in combination with specific application scenarios and are not limited here.

[0151] 202. The preset UE sends the preset UE air interface capabilities and the preset UE first air interface capabilities to the first AMF;

[0152] After the preset UE generates the first air interface capabilities and the second air interface capabilities of the preset UE, the preset UE sends the air interface capabilities (full radio capability) and the first air interface capabilities (partial radio capability info 1) of the preset UE to the first AMF. The preset UE is connected to the first AMF through the first RAN.

[0153] When a UE accesses a network, it needs to report its capability information to the network. The network then configures the UE based on this capability information and works with the UE to enable data transmission between the UE and the network. The UE capability information includes the UE's radio capability and the UE's core network capability. The RAN and the core network are responsible for the connection between the UE and the network. The access network uses the UE radio capability to configure the connection between the access network and the UE, while the core network uses the UE core network capability to configure the connection between the core network and the UE.

[0154] Specifically, the UE radio capability includes information about the radio access technology supported by the UE (eg, power level, frequency band, and number of MIMO layers, etc.).

[0155] Exemplarily, the preset UE may send the preset UE's air interface capability (full radio capability) and the preset UE's first air interface capability (partial radio capability info 1) to the first AMF through a non-access stratum (NAS) message.

[0156] Furthermore, after receiving the air interface capabilities of the preset UE and the first air interface capabilities of the preset UE sent by the preset UE, the first AMF may also save the air interface capabilities of the preset UE and the first air interface capabilities of the preset UE for subsequent use.

[0157] Exemplarily, the preset UE may further send a first message to the first AMF through a NAS message, where the first message indicates additional UE air interface capabilities. The first message may be "UE radio capability addition". After receiving the preset UE air interface capabilities (full radio capability) and the preset UE's first air interface capabilities (partial radio capability info 1), the first AMF stores the preset UE air interface capabilities (full radio capability) and the preset UE's first air interface capabilities (partial radio capability info 1).

[0158] Furthermore, the first AMF can also encode the air interface capability (full radio capability) of the preset UE and the first air interface capability (partial radio capability info 1) of the preset UE. For example, code 1 corresponds to the air interface capability of the preset UE, and code 2 corresponds to the first air interface capability of the preset UE. After encoding the air interface capability of the preset UE and the first air interface capability of the preset UE, the first AMF synchronizes the encoding to the preset UE. Optionally, the preset UE can also encode the air interface capability of the preset UE and the first air interface capability of the preset UE, and then synchronize the encoding to the first AMF. There is no restriction here.

[0159] Optionally, the preset UE may also send the preset UE's air interface capability (full radio capability) and the preset UE's first air interface capability (partial radio capability info 1) to the first RAN through a radio resource control (RRC) message, and the first RAN may send the preset UE's air interface capability (full radio capability) and the preset UE's first air interface capability (partial radio capability info 1) to the first AMF through an interface between radio access network nodes (N2) message.

[0160] Furthermore, when the first AMF receives the preset UE's air interface capabilities and the preset UE's first air interface capabilities sent by the first RAN, the preset UE's air interface capabilities and the preset UE's first air interface capabilities sent by the first RAN may also carry a first identifier, where the first identifier indicates that the preset UE's air interface capabilities and the preset UE's first air interface capabilities are to be stored. The first AMF stores the preset UE's air interface capabilities and the preset UE's first air interface capabilities based on the first identifier. The first identifier may be "full / partial radio capability indication."

[0161] It can be understood that the description here of the preset UE sending the preset UE's air interface capabilities and the preset UE's first air interface capabilities to the first 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.

[0162] It should be noted that the description of step 202 and step 203 here is only an example. There is no clear order between step 202 and step 203. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0163] 203. The preset UE sends the preset UE air interface capabilities and the preset UE second air interface capabilities to the second AMF;

[0164] After the preset UE generates the first radio interface capabilities and the second radio interface capabilities of the preset UE, the preset UE sends the air interface capabilities (full radio capability) and the second radio interface 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.

[0165] Exemplarily, the preset UE may send the preset UE's air interface capability (full radio capability) and the preset UE's second air interface capability (partial radio capability info 2) to the second AMF through a NAS message.

[0166] Furthermore, after receiving the air interface capabilities of the preset UE and the second air interface capabilities of the preset UE sent by the preset UE, the second AMF may also save the air interface capabilities of the preset UE and the second air interface capabilities of the preset UE for subsequent use.

[0167] Exemplarily, the preset UE may also send a first message to the second AMF through a NAS message, where the first message indicates additional UE air interface capabilities. The first message may be "UE radio capability addition", and after receiving the preset UE air interface capabilities (full radio capability) and the preset UE's second air interface capabilities (partial radio capability info 2), the second AMF stores the preset UE air interface capabilities (full radio capability) and the preset UE's second air interface capabilities (partial radio capability info 2).

[0168] Furthermore, the second AMF can also encode the air interface capability (full radio capability) of the preset UE and the second air interface capability (partial radio capability info 2) of the preset UE. For example, code 1 corresponds to the air interface capability of the preset UE, and code 3 corresponds to the second air interface capability of the preset UE. After encoding the air interface capability of the preset UE and the second air interface capability of the preset UE, the second AMF synchronizes the coding to the preset UE. Optionally, the preset UE can also encode the air interface capability of the preset UE and the second air interface capability of the preset UE, and then synchronize the coding to the second AMF. There is no restriction here.

[0169] Optionally, the preset UE may also send the preset UE's air interface capability (full radio capability) and the preset UE's second air interface capability (partial radio capability info 2) to the first RAN through an RRC message, and the second RAN may send the preset UE's air interface capability (full radio capability) and the preset UE's second air interface capability (partial radio capability info 2) to the second AMF through an N2 message.

[0170] Furthermore, when the second AMF receives the preset UE air interface capabilities and the preset UE's second air interface capabilities sent by the second RAN, the preset UE air interface capabilities and the preset UE's second air interface capabilities sent by the second RAN may also carry a first identifier, where the first identifier indicates that the preset UE air interface capabilities and the preset UE's second air interface capabilities are to be stored. The second AMF stores the preset UE air interface capabilities and the preset UE's second air interface capabilities based on the first identifier. The first identifier may be "full / partial radio capability indication".

[0171] It can be understood that the description here of the preset UE sending the preset UE's air interface capabilities and the preset UE's second air interface capabilities to the second 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.

[0172] It should be noted that the description of step 202 and step 203 here is only an example. There is no clear order between step 202 and step 203. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0173] 204. The preset UE sends the preset UE working mode information to the first AMF and the second AMF;

[0174] When the connection state of the preset UE changes, for example, the preset UE changes from an idle state to a connected state, or the preset UE changes from being connected to one RAN to being connected to two RANs, or the preset UE changes from being connected to two RANs to being connected to one RAN, the preset UE may send the working mode information of the preset UE to the first AMF and the second AMF, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0175] 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 coding corresponding to the full radio capability, such as coding 1, which is not limited here. The dual connection mode information can be replaced by a partial radio capability indication, or the coding corresponding to the partial radio capability, such as coding 2 or coding 3, which is not limited here.

[0176] 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.

[0177] 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.

[0178] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the first AMF and the second AMF.

[0179] It is understandable that the description of the content of the preset UE working mode information here is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0180] 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 air interface capability processing mode based on the number of RANs to which the preset UE is connected. This helps to accurately allocate accurate air interface capabilities to the RAN based on the actual connection status of the preset UE, thereby achieving flexible switching between a single RAN connection and multiple RAN connections for the preset UE, thereby ensuring the accuracy of the solution while improving the flexibility of the solution.

[0181] 205. The first AMF sends the preset UE air interface capabilities or the preset UE first air interface capabilities to the first RAN according to the preset UE working mode information;

[0182] After the first AMF obtains the working mode information of the preset UE sent by the preset UE, it 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 working mode information of the preset UE.

[0183] 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 single connection mode, and the first AMF sends the air interface capabilities of the preset UE to the first RAN;

[0184] 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 connectivity mode, and the first AMF sends the first air interface capability of the preset UE to the first RAN.

[0185] In an embodiment 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 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 air interface capabilities of the preset UE to the first RAN. Different air interface capabilities are flexibly sent to the first RAN according to the number of RANs connected by the preset UE, so that the first RAN can reasonably configure the air interface between the preset UE and the preset UE based on the air interface capabilities, thereby improving the flexibility and feasibility of the solution.

[0186] Optionally, the first AMF may also send to the first RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0187] It can be understood that the description here of the first AMF sending the preset UE's air interface capabilities and the first air interface 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 application, it should be set in combination with the specific application scenario and is not limited here.

[0188] It should be noted that the description of step 205 and step 206 here is only an example. There is no clear order between step 205 and step 206. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0189] 206. The second AMF sends the preset UE air interface capabilities or the preset UE second air interface capabilities to the second RAN according to the preset UE working mode information;

[0190] After the second AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the air interface capabilities of the preset UE, or the second air interface capabilities of the preset UE, to the second RAN according to the working mode information of the preset UE.

[0191] 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, and the second AMF sends the air interface capabilities of the preset UE to the second RAN;

[0192] 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 connectivity mode, and the second AMF sends the second air interface capability of the preset UE to the second RAN.

[0193] Optionally, the second AMF may also send to the second RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE second air interface capability and the dual connection mode information.

[0194] It can be understood that the description here of the second AMF sending the preset UE's air interface capabilities and the preset UE's second air interface capabilities to the second RAN according to the working mode information sent by the preset UE is only an example. In actual application, it should be set in combination with the specific application scenario and is not limited here.

[0195] It should be noted that the description of step 205 and step 206 here is only an example. There is no clear order between step 205 and step 206. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0196] 207. The first RAN performs air interface configuration with the preset UE according to the preset UE air interface capability or the first air interface capability of the preset UE;

[0197] After receiving the preset air interface capabilities of the UE or the first air interface capabilities of the UE, the first RAN performs air interface configuration with the preset UE according to the preset air interface capabilities of the UE or the first air interface capabilities of the UE.

[0198] Specifically, when the first AMF sends the correspondence between the preset UE air interface capability and the single connection mode information to the first RAN, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0199] 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 air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0200] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the first RAN through an RRC message. After obtaining the dual connectivity mode information, the first RAN may use the first air interface capability of the preset UE to perform air interface configuration with the preset UE.

[0201] It should be noted that the description of step 207 and step 208 here is only an example. There is no clear order between step 207 and step 208. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0202] 208. The second RAN performs air interface configuration with the preset UE according to the preset UE's air interface capability or the second air interface capability of the preset UE.

[0203] After receiving the preset UE's air interface capabilities or the preset UE's second air interface capabilities, the second RAN performs air interface configuration with the preset UE according to the preset UE's air interface capabilities or the preset UE's second air interface capabilities.

[0204] Specifically, when the second AMF sends the correspondence between the preset UE air interface capability and the single connection mode information to the second RAN, and the correspondence between the preset UE second air interface capability and the dual connection mode information.

[0205] 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 air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0206] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the second RAN through an RRC message. After obtaining the dual connectivity mode information, the second RAN can use the second air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0207] It should be noted that the description of step 207 and step 208 here is only an example. There is no clear order between steps 207 and 208. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0208] In an embodiment of the present application, the air interface capabilities of a preset UE and the first air interface capabilities of the preset UE are obtained through the first AMF, where 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 connect 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 based on the number of RANs connected to the preset UE as indicated by the working mode information of the preset UE, so that the first RAN performs air interface configuration with the preset UE based on the first air interface capabilities of the preset UE or the air interface capabilities of the preset UE. This avoids the situation where air interface resources cannot be properly configured when the preset UE is connected to multiple RANs at the same time, makes it possible for the preset UE to connect to multiple RANs for data transmission at the same time, and improves the data transmission stability and communication connection reliability of the preset UE.

[0209] It will be understood that the description of the RAT types of the first RAN and the second RAN here is only an example. In actual applications, the RAT type of the first RAN and the RAT type of the second RAN may be the same. When the RAT type of the first RAN is the same as the RAT type of the second RAN, the preset first air interface capabilities of the UE and the preset second air interface capabilities of the UE are the same, and no limitation is imposed here.

[0210] Optionally, step 209 may be performed before step 201. The specific implementation of step 209 is as follows:

[0211] 209. Preset the UE to obtain the air interface capabilities of the first RAN and the air interface capabilities of the second RAN;

[0212] The UE is configured to obtain the air interface capabilities of the first RAN through a broadcast message from the first RAN, and obtain the air interface capabilities of the second RAN through a broadcast message from the second RAN. The air interface capabilities of the first RAN may include information about radio access technologies (RATs) supported by the first RAN (e.g., power class, frequency band, and number of MIMO layers), and the air interface capabilities of the second RAN may include information about radio access technologies supported by the second RAN (e.g., power class, frequency band, and number of MIMO layers).

[0213] It is understandable that the description of the method for presetting the UE to obtain the air interface capabilities of the first RAN and the second RAN is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0214] It should be noted that step 209 is an optional step in a specific implementation. The description here is only an example. It can be selectively implemented in actual applications and is not limited here.

[0215] When step 209 is executed, adaptive adjustment is required in step 201, as follows:

[0216] The preset UE generating the first air interface capability of the preset UE and the second air interface capability of 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 capability of the preset UE, the air interface capability of the first RAN, and the air interface capability 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.

[0217] The following describes the solution proposed in this application with reference to FIG3a and FIG3b for a scenario in which the UE is connected to the third AMF through the first RAN and the UE is connected to the third AMF through the second RAN:

[0218] As shown in Figure 3a, 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. The third AMF is the preset AMF.

[0219] The solution provided by this application is introduced below in conjunction with FIG3b:

[0220] 301. The preset UE generates a first air interface capability of the preset UE and a second air interface capability of the preset UE;

[0221] The operation of step 301 is similar to the operation performed in step 201 in FIG. 2 b . For the specific implementation, please refer to step 201 in FIG. 2 b , which will not be described in detail here.

[0222] 302. The preset UE sends the preset UE air interface capabilities, the preset UE first air interface capabilities, and the preset UE second air interface capabilities to the third AMF;

[0223] After the pre-configured UE generates the first and second air interface capabilities of the pre-configured UE, the pre-configured UE sends the air interface capabilities (full radio capability), the first air interface capabilities (partial radio capability info 1), and the second air interface capabilities (partial radio capability info 2) of the pre-configured UE to the third AMF. The pre-configured UE is connected to the third AMF through the first RAN and the second RAN, respectively.

[0224] 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 air interface 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 air interface capability (partial radio capability info 2) of the preset UE to the third AMF through the second RAN.

[0225] When the preset UE is connected to the first RAN, the preset UE sends the full radio capability of the preset UE to the third AMF through the first RAN;

[0226] When the preset UE is connected to the second RAN, the preset UE sends the full radio capability of the preset UE to the third AMF through the second RAN.

[0227] Furthermore, after obtaining the air interface capabilities of the preset UE, the first air interface capabilities of the preset UE, and the second air interface capabilities of the preset UE, the third AMF stores the air interface capabilities of the preset UE, the first air interface capabilities of the preset UE, and the second air interface capabilities of the preset UE.

[0228] Optionally, the preset first air interface capability of the UE is an air interface capability used when the preset UE is connected to a RAN of a first RAT type. The preset second air interface capability of the UE is an air interface capability used when the preset UE is connected to a RAN of a second RAT type.

[0229] It can be understood that the description here of the preset UE sending the first air interface capability of the preset UE and the second air interface capability of the preset UE 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.

[0230] 303. The third AMF obtains preset UE operating mode information;

[0231] 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, such as when the preset UE changes from an idle state to a connected state, when the preset UE changes from being connected to one RAN to being connected to two RANs, or when the preset UE changes from being connected to two RANs to being connected to one RAN, the preset UE may send the working mode information of the preset UE to the third AMF, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0232] When the third AMF generates the working mode information of the preset UE, since the third AMF manages the connection between the preset UE and the first RAN and the second RAN, the third AMF may generate the working mode information of the preset UE based on the connection status of the preset UE and the RAN. The working mode information of the preset UE indicates the number of RANs connected to the preset UE or indicates that the preset UE is connected to one or two RANs. The working mode information of the preset UE may include dual-connectivity mode information and single-connectivity mode information.

[0233] 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 coding corresponding to the full radio capability, such as coding 1, which is not limited here. The dual connection mode information can be replaced by a partial radio capability indication, or the coding corresponding to the partial radio capability, such as coding 2 or coding 3, which is not limited here.

[0234] Specifically, when the preset UE is connected to the first RAN, the preset UE sends the single connection mode information to the third AMF through the first RAN.

[0235] When the preset UE is connected to the second RAN, the preset UE sends the single connection mode information to the third AMF through the second RAN.

[0236] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the third AMF.

[0237] It is understandable that the description of the content of the preset UE working mode information here is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0238] 304. The third AMF sends the first air interface capability of the preset UE, or the air interface capability of the preset UE, to the first RAN according to the preset working mode information of the UE.

[0239] After the third AMF obtains the working mode information of the preset UE sent by the preset UE, it 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 working mode information of the preset UE.

[0240] 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 single connection mode, and the third AMF sends the air interface capability of the preset UE to the first RAN;

[0241] 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 connectivity mode, and the third AMF sends the first air interface capability of the preset UE to the first RAN.

[0242] Optionally, the third AMF may also send to the first RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0243] Furthermore, when the third AMF sends the first air interface capability of the preset UE to the first RAN, the third AMF sends the first air interface 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.

[0244] It can be understood that the description here of the third AMF sending the preset UE's air interface capabilities and the preset UE's first air interface capabilities to the first RAN according to the working mode information sent by the preset UE is only an example. In actual application, it should be set in combination with the specific application scenario and is not limited here.

[0245] It should be noted that the description of step 304 and step 305 here is only an example. There is no clear order between step 304 and step 305. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0246] 305. The third AMF sends the second air interface capability of the preset UE, or the air interface capability of the preset UE, to the second RAN according to the preset working mode information of the UE.

[0247] After the third AMF obtains the working mode information of the preset UE sent by the preset UE, it sends the air interface capabilities of the preset UE, or the second air interface capabilities of the preset UE, to the second RAN according to the working mode information of the preset UE.

[0248] 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, and the third AMF sends the air interface capabilities of the preset UE to the second RAN;

[0249] 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 connectivity mode, and the third AMF sends the second air interface capability of the preset UE to the second RAN.

[0250] Optionally, the third AMF may also send to the second RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE second air interface capability and the dual connection mode information.

[0251] Furthermore, when the third AMF sends the second air interface capabilities of the preset UE to the second RAN, the third AMF sends the second air interface capabilities of the preset UE to the second RAN based on the RAT type of the second RAN. The second air interface capabilities of the preset UE are the air interface capabilities 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 may be a 5G RAT type, and the second RAT type may be a 6G RAT type, which is not limited here.

[0252] It can be understood that the description here of the third AMF sending the preset UE's air interface capabilities and the preset UE's first air interface capabilities to the second RAN according to the working mode information sent by the preset UE is only an example. In actual application, it should be set in combination with the specific application scenario and is not limited here.

[0253] It should be noted that the description of step 304 and step 305 here is only an example. There is no clear order between step 304 and step 305. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0254] 306. The first RAN performs air interface configuration with the preset UE according to the preset UE air interface capability or the first air interface capability of the preset UE;

[0255] After receiving the preset air interface capabilities of the UE or the first air interface capabilities of the UE, the first RAN performs air interface configuration with the preset UE according to the preset air interface capabilities of the UE or the first air interface capabilities of the UE.

[0256] Specifically, when the third AMF sends the correspondence between the preset UE air interface capability and the single connection mode information to the first RAN, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0257] 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 air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0258] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the first RAN through an RRC message. After obtaining the dual connectivity mode information, the first RAN may use the first air interface capability of the preset UE to perform air interface configuration with the preset UE.

[0259] Optionally, when the third AMF sends the air interface capabilities of the preset UE to the first RAN, the first RAN uses the air interface capabilities of the preset UE to perform air interface configuration with the preset UE.

[0260] When the third AMF sends the first air interface capabilities of the preset UE to the first RAN, the first RAN uses the first air interface capabilities of the preset UE to perform air interface configuration with the preset UE.

[0261] It should be noted that the description of step 306 and step 307 here is only an example. There is no clear order between step 306 and step 307. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0262] 307 . The second RAN performs air interface configuration with the preset UE according to the preset UE's air interface capability or the second air interface capability of the preset UE.

[0263] After receiving the preset UE's air interface capabilities or the preset UE's second air interface capabilities, the second RAN performs air interface configuration with the preset UE according to the preset UE's air interface capabilities or the preset UE's second air interface capabilities.

[0264] Specifically, when the second AMF sends the correspondence between the preset UE air interface capability and the single connection mode information to the second RAN, and the correspondence between the preset UE second air interface capability and the dual connection mode information.

[0265] 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 air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0266] When the preset UE is connected to the first RAN and the second RAN, the preset UE sends dual connectivity mode information to the second RAN through an RRC message. After obtaining the dual connectivity mode information, the second RAN can use the second air interface capability of the preset UE to perform air interface configuration between the preset UE and the preset UE.

[0267] Optionally, when the third AMF sends the air interface capabilities of the preset UE to the second RAN, the second RAN uses the air interface capabilities of the preset UE to perform air interface configuration with the preset UE.

[0268] When the third AMF sends the second air interface capabilities of the preset UE to the second RAN, the second RAN uses the second air interface capabilities of the preset UE to perform air interface configuration with the preset UE.

[0269] It should be noted that the description of step 306 and step 307 here is only an example. There is no clear order between step 306 and step 307. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0270] In this embodiment of the present application, the third AMF obtains the preset UE's air interface capabilities, the preset UE's first air interface capabilities, and the preset UE's second air interface capabilities. Based on the preset UE's operating mode information, the corresponding air interface capabilities are sent to the first RAN and the second RAN. This allows the preset UE to flexibly perform network switching and simultaneously connect to two RANs for data transmission or connect to a single RAN for data transmission. This improves the UE's data transmission flexibility.

[0271] Optionally, step 308 may be performed before step 301. The specific implementation of step 308 is as follows:

[0272] 308. Preset the UE to obtain the air interface capabilities of the first RAN and the air interface capabilities of the second RAN;

[0273] The UE is configured to obtain the air interface capabilities of the first RAN through a broadcast message from the first RAN, and obtain the air interface capabilities of the second RAN through a broadcast message from the second RAN. The air interface capabilities of the first RAN may include information about radio access technologies (RATs) supported by the first RAN (e.g., power class, frequency band, and number of MIMO layers), and the air interface capabilities of the second RAN may include information about radio access technologies supported by the second RAN (e.g., power class, frequency band, and number of MIMO layers).

[0274] It is understandable that the description of the method for presetting the UE to obtain the air interface capabilities of the first RAN and the second RAN is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0275] It should be noted that step 308 is an optional step in a specific implementation. The description here is only an example. It can be selectively implemented in actual applications and is not limited here.

[0276] When step 308 is executed, adaptive adjustment is required in step 301, as follows:

[0277] The preset UE generating the first air interface capability of the preset UE and the second air interface capability of 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 capability of the preset UE, the air interface capability of the first RAN, and the air interface capability 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.

[0278] Based on the network structure described in FIG3a, the AMF may also preset the first air interface capability of the UE and the second air interface capability of the UE. This scenario is described below in conjunction with FIG4a and FIG4b:

[0279] As shown in Figure 4a, 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. The third AMF is the preset AMF, and the third AMF generates the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE.

[0280] The solution provided by this application is introduced below in conjunction with FIG4b:

[0281] 401. The third AMF obtains the preset air interface capabilities of the UE.

[0282] The third AMF obtains the air interface capabilities of the preset UE sent by the preset UE.

[0283] Optionally, the third AMF further obtains the air interface capabilities of the first RAN and the air interface capabilities of the second RAN;

[0284] The third AMF obtains the air interface capabilities of the first RAN from the first RAN, and the third AMF obtains the air interface capabilities of the second RAN from the second RAN.

[0285] It is understandable that the description of the method for presetting the UE to obtain the air interface capabilities of the first RAN and the second RAN is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0286] 402. The third AMF generates a first air interface capability of the preset UE and a second air interface capability of the preset UE.

[0287] The third AMF generates a first air interface capability (partial radio capability info 1) of the preset UE and a second air interface capability (partial radio capability info 2) of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE.

[0288] Optionally, the third AMF generates the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE based on the air interface capabilities of the preset UE. Optionally, when generating the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE, the third AMF may also generate the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE based on 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 capabilities of the preset UE and the second RAN supports the second air interface capabilities of the preset UE.

[0289] Furthermore, the first RAN supports the first air interface capabilities of the preset UE, and the second RAN supports the second air interface capabilities of the preset UE. That is, the first air interface capabilities of the preset UE are still a subset of the air interface capabilities of the first RAN, and the second air interface capabilities of the preset UE are still a subset of the air interface capabilities of the second RAN.

[0290] In addition, the air interface capabilities of the preset UE include all air interface capabilities supported by the preset UE, the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE are partial air interface capabilities of the preset UE, and the first air interface capabilities of the preset UE are associated with the radio access technology (radio access technology, RAT) of the RAN to which the preset UE is connected, and the second air interface capabilities of the preset UE are associated with the RAT to which the preset UE is connected.

[0291] Exemplarily, the preset first air interface capabilities of the UE are the air interface capabilities used when the UE is connected to a RAN of a first RAT type, where the RAT type of the first RAN is the first RAT type. The preset second air interface capabilities of the UE are the air interface capabilities used when the UE is connected to a RAN of a second RAT type, where 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, without limitation herein.

[0292] It can be understood that the description of the first air interface capability of the preset UE and the second air interface capability of the preset UE generated by the preset UE, and the description of the first RAT type and the second RAT type are only examples. In actual applications, they should be set in combination with specific application scenarios and are not limited here.

[0293] 403. The third AMF generates preset UE working mode information.

[0294] Since the third AMF is responsible for 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 may generate working mode information of the preset UE based on the connection status of the preset UE and the RAN, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0295] Specifically, when the connection state of the preset UE changes, for example, the preset UE changes from an idle state to a connected state, or the preset UE changes from being connected to one RAN to being connected to two RANs, or the preset UE changes from being connected to two RANs to being connected to one RAN, the third AMF generates the working mode information of the preset UE.

[0296] Among them, the working mode information of the preset UE may include dual connection mode information and single connection mode information, and 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 (full radio capability indication) of the preset UE, or the coding corresponding to the full radio capability, such as coding 1, which is not limited here. The dual connection mode information can be replaced by partial radio capability indication, or the coding corresponding to the partial radio capability, such as coding 2 or coding 3, which is not limited here.

[0297] It is understandable that the description of the preset UE working mode information here is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0298] 404. The third AMF sends the preset UE air interface capabilities or the preset UE first air interface capabilities to the first RAN according to the preset UE working mode information;

[0299] After the third AMF generates the working mode information of the preset UE, it 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 working mode information of the preset UE.

[0300] 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 single connection mode, and the third AMF sends the air interface capability of the preset UE to the first RAN;

[0301] 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 connectivity mode, and the third AMF sends the first air interface capability of the preset UE to the first RAN.

[0302] Optionally, the third AMF may also send to the first RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0303] It can be understood that the description here of the third AMF sending the preset UE's air interface capabilities and the preset UE's first air interface capabilities to the first RAN according to the working mode information sent by the preset UE is only an example. In actual application, it should be set in combination with the specific application scenario and is not limited here.

[0304] It should be noted that the description of step 404 and step 405 here is only an example. There is no clear order between step 404 and step 405. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0305] 405. The third AMF sends the preset UE air interface capability or the preset UE second air interface capability to the second RAN according to the preset UE working mode information;

[0306] After the third AMF generates the working mode information of the preset UE, it 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 working mode information of the preset UE.

[0307] 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 single connection mode, and the third AMF sends the air interface capability of the preset UE to the first RAN;

[0308] 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 connectivity mode, and the third AMF sends the first air interface capability of the preset UE to the first RAN.

[0309] Optionally, the third AMF may also send to the first RAN the correspondence between the preset UE air interface capability and the single connection mode information, and the correspondence between the preset UE first air interface capability and the dual connection mode information.

[0310] It can be understood that the description here of the third AMF sending the preset UE's air interface capabilities and the preset UE's first air interface capabilities to the first RAN according to the working mode information sent by the preset UE is only an example. In actual application, it should be set in combination with the specific application scenario and is not limited here.

[0311] It should be noted that the description of step 404 and step 405 here is only an example. There is no clear order between step 404 and step 405. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0312] 406. The first RAN performs air interface configuration with the preset UE according to the preset UE air interface capability or the first air interface capability of the preset UE;

[0313] 407 . The second RAN performs air interface configuration with the preset UE according to the preset UE's air interface capability or the second air interface capability of the preset UE.

[0314] Step 406 and step 407 are similar to step 306 and step 307 in FIG. 3 b . For the specific implementation, please refer to the description in FIG. 3 b , which will not be repeated here.

[0315] It should be noted that the description of step 406 and step 407 here is only an example. There is no clear order between step 406 and step 407. In a specific application scenario, the settings should be based on specific needs and are not limited here.

[0316] In this embodiment of the present application, the third AMF collects 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. Based on these air interface capabilities, the third AMF generates the first air interface capabilities and the second air interface capabilities of the preset UE. The third AMF generates operating mode information for the preset UE and, based on this operating mode information, sends the appropriate air interface capabilities of the preset UE to the first RAN and the second RAN to implement air interface configuration for the preset UE. Generating the first air interface capabilities and the second air interface capabilities of the preset UE by the third AMF improves the flexibility of solution implementation.

[0317] Based on the network structure described in FIG3a , the first RAN may also preset the first air interface capability of the UE and generate the second air interface capability of the UE. This scenario is described below with reference to FIG5a and FIG5b :

[0318] As shown in Figure 5a, 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. The third AMF is the preset AMF, and the first RAN generates the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE.

[0319] The solution provided by this application is introduced below in conjunction with FIG5b:

[0320] 501. The first RAN obtains the air interface capability of the preset UE;

[0321] When the preset UE connects to the third AMF through the first RAN, the first RAN obtains the air interface capability of the preset UE sent by the preset UE.

[0322] Specifically, the third AMF obtains the air interface capabilities of the preset UE from the preset UE and sends the air interface capabilities of the preset UE to the first RAN.

[0323] 502. The third AMF sends the preset UE working mode information or the identification information of the second RAN to the first RAN.

[0324] Since the third AMF is responsible for access management of the preset UE, the third AMF may send the working mode information of the preset UE or the identification information of the second RAN to the first RAN. The working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0325] When the connection state of the preset UE changes, for example, the preset UE changes from an idle state to a connected state, or the preset UE changes from being connected to one RAN to being connected to two RANs, or the preset UE changes from being connected to two RANs to being connected to one RAN, the third AMF may send the operating mode information of the preset UE to the first RAN. The operating mode information of the preset UE is generated by the third AMF.

[0326] Specifically, when the connection state of the preset UE changes, the third AMF may generate the working mode information of the preset UE according to the connection status of the preset UE and the RAN, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE.

[0327] Among them, the working mode information of the preset UE may include dual connection mode information and single connection mode information, and 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 (full radio capability indication) of the preset UE, or the coding corresponding to the full radio capability, such as coding 1, which is not limited here. The dual connection mode information can be replaced by partial radio capability indication, or the coding corresponding to the partial radio capability, such as coding 2 or coding 3, which is not limited here.

[0328] Specifically, when the preset UE is connected to the first RAN, the third AMF sends the single connection mode information to the first RAN.

[0329] When the preset UE is connected to the first RAN and the second RAN, the third AMF sends the dual connectivity mode information to the first RAN.

[0330] It is understandable that the description of the content of the preset UE working mode information here is only an example. In actual application, it should be set in combination with specific application scenarios and is not limited here.

[0331] Specifically, the identification information of the second RAN may be a cell identifier or a device identifier of the second RAN, which is not limited here.

[0332] 503. The first RAN generates a first air interface capability of a preset UE and a second air interface capability of the preset UE;

[0333] When the first RAN obtains the air interface capabilities of the preset UE and the working mode information of the preset UE is dual connectivity mode information, the first RAN generates first air interface capabilities of the preset UE and second air interface capabilities of the preset UE based on the air interface capabilities of the preset UE, where the first air interface capabilities of the preset UE are a subset of the air interface capabilities of the preset UE, and the second air interface capabilities of the preset UE are a subset of the air interface capabilities of the preset UE.

[0334] Furthermore, the first RAN can also obtain the identification information of the second RAN sent by the third AMF, for example, the cell identifier corresponding to the second RAN, so that the first RAN can use the air interface capabilities of the first RAN, the air interface capabilities of the second RAN, and the air interface capabilities of the preset UE to generate the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE, where the first air interface capabilities of the preset UE are a subset of the air interface capabilities of the first RAN, and the second air interface capabilities of the preset UE are a subset of the air interface capabilities of the second RAN.

[0335] It is understandable that the description of the first RAN generating the preset first air interface capability of the UE and the preset second air interface capability of the UE is only an example. In actual application, the settings should be made in combination with specific application scenarios and are not limited here.

[0336] Optionally, the preset first air interface capabilities of the UE are air interface capabilities used when the preset UE is connected to a RAN of a first RAT type, and the RAT type of the first RAN is the first RAT type. The preset second air interface capabilities of the UE are air interface capabilities used when the preset UE is connected to a RAN of a 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, without limitation herein.

[0337] 504. The first RAN sends the preset second air interface capability of the UE to the second RAN;

[0338] After the first RAN generates the first air interface capabilities of the preset UE and the second air interface capabilities of the preset UE, when the working mode information of the preset UE indicates that the preset UE is in dual connectivity mode, the first RAN sends the second air interface capabilities of the preset UE to the second RAN.

[0339] Optionally, since the RAT type of the second RAN is the second RAT type, the first RAN sends the second air interface capability of the preset UE to the second RAN.

[0340] 505. The first RAN performs air interface configuration with the preset UE according to the first air interface capability of the preset UE;

[0341] After the first RAN generates the first air interface capabilities and the second air interface capabilities 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 air interface configuration with the preset UE according to the first air interface capabilities of the preset UE.

[0342] Specifically, when the preset UE is connected to the first RAN and the second RAN, the first RAN uses the first air interface capability of the preset UE to perform air interface configuration with the preset UE.

[0343] It should be noted that the description of step 505 and step 506 here is only an example. There is no clear order between step 505 and step 506. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0344] 506. The second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0345] When the working mode information of the preset UE indicates that the preset UE is connected to two RANs, and the second RAN receives the second air interface capability of the preset UE sent by the first RAN, it performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0346] Specifically, when the preset UE is connected to the first RAN and the second RAN, the second RAN uses the second air interface capability of the preset UE to perform air interface configuration with the preset UE.

[0347] It should be noted that the description of step 505 and step 506 here is only an example. There is no clear order between step 505 and step 506. In specific application scenarios, they should be set according to specific needs and are not limited here.

[0348] In an embodiment of the present application, when the preset UE is connected to two RANs and the preset AMF simultaneously manages the connections between the two RANs and the preset UE, the preset AMF also obtains the second air interface capabilities of the preset UE and sends the second air interface capabilities of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE. The preset UE is connected to the preset AMF through the second RAN, which solves the problem of air interface capability transmission and configuration related to the second RAN when the preset AMF simultaneously manages the connections between the two RANs and the preset UE, thereby improving the integrity of the solution.

[0349] In an embodiment of the present application, the first air interface capability of the preset UE may be an air interface capability generated by a preset AMF, a preset UE, or a first RAN. Multiple nodes may generate the first air interface capability of the preset UE, thereby improving the flexibility of the implementation of the solution.

[0350] The above describes the communication connection method provided in the embodiment of the present application. The following describes the communication connection device provided in the embodiment of the present application with reference to the accompanying drawings:

[0351] Please refer to FIG6 , the communication connection device 10 includes:

[0352] An acquiring unit 110 is configured to acquire air interface capabilities of a preset terminal UE and first air interface capabilities of the preset UE, where the first air interface capabilities of the preset UE are a subset of the air interface capabilities of the preset UE, and the preset UE is connected to the preset AMF through the first RAN;

[0353] The acquiring unit 110 is further configured to acquire working mode information of a preset UE, where the working mode information of the preset UE indicates the number of RANs connected to the preset UE;

[0354] The sending unit 120 is configured to send the preset UE's air interface capabilities, or the preset UE's first air interface capabilities, to the first RAN based on the preset UE's working mode information, so that the first RAN performs air interface configuration with the preset UE based on the preset UE's first air interface capabilities, or the UE's air interface capabilities.

[0355] Optionally, the sending unit 120 is specifically configured to:

[0356] When the working mode information indicates that the preset UE is connected to two RANs, sending the first air interface capability of the preset UE to the first RAN according to the working mode information;

[0357] When the working mode information indicates that the preset UE is connected to a RAN, the air interface capability of the preset UE is sent to the first RAN according to the working mode information.

[0358] 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;

[0359] The acquiring unit 110 is specifically configured to acquire single connection mode information or dual connection mode information sent by a preset UE.

[0360] Optionally, the first air interface capability of the preset UE is an air interface capability set generated by the first device according to the air interface capability of the preset UE, and the first device is a preset AMF, a preset UE or a first RAN.

[0361] Optionally, the acquiring unit 110 is further configured to acquire a second air interface capability of a preset UE, where the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the preset UE is connected to the preset AMF through the second RAN;

[0362] 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 air interface capability of the preset UE to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0363] Optionally, the acquiring unit 110 is specifically configured to generate 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, where the working mode information of the preset UE indicates that the preset UE is connected to the two RANs.

[0364] Optionally, the preset first air interface capability of the UE is an air interface capability used when the preset UE is connected to a RAN of a first RAT type, and the RAT type of the first RAN is the first RAT type.

[0365] Optionally, the preset second air interface capability of the UE is an air interface capability used when the preset UE is connected to a RAN of a second RAT type, and the RAT type of the second RAN is the second RAT type.

[0366] FIG7 shows a communication connection device 20, comprising:

[0367] A generating unit 210 is configured to generate a first air interface capability of a preset UE and a second air interface capability of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0368] The processing unit 220 is configured to process the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0369] Optionally, the apparatus further includes an acquisition unit 230, configured to acquire the air interface capability of the preset UE, the air interface capability of the first RAN, and the air interface capability of the second RAN;

[0370] The generating unit 210 is specifically configured to generate the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capability of the preset UE, the air interface capability of the first RAN, and the air interface capability of the second RAN.

[0371] Optionally, the processing unit 220 is specifically configured to:

[0372] Send the first air interface capability of the preset UE to the first AMF, and the first AMF is responsible for access management of the preset UE;

[0373] The second air interface capability of the preset UE is sent to the second AMF, and the second AMF is responsible for access management of the preset UE.

[0374] Optionally, the processing unit 220 is specifically used to send the first air interface capability of the preset UE and the second air interface capability of the preset UE to the preset AMF, and the preset AMF is responsible for access management of the preset UE.

[0375] Optionally, the device further includes a sending unit 240, configured to send single connection mode information, or dual connection mode information, to a 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.

[0376] Optionally, the preset first air interface capability of the UE is the air interface capability used when the preset UE is connected to a RAN of a first radio access technology RAT type, and the preset second air interface capability of the UE is the air interface capability used when the preset UE is connected to a RAN of a second RAT type.

[0377] FIG8 , a communication connection device 30 , comprising:

[0378] A generating unit 310 is configured to generate a first air interface capability of a preset UE and a second air interface capability of the preset UE, where the first air interface capability of the preset UE is a subset of the air interface capability of the preset UE, and the second air interface capability of the preset UE is a subset of the air interface capability of the preset UE;

[0379] The processing unit 320 is configured to process the first air interface capabilities of the preset UE and the second air interface capabilities 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 air interface configuration with the preset UE based on the first air interface capabilities of the preset UE, and the second RAN performs air interface configuration with the preset UE based on the second air interface capabilities of the preset UE.

[0380] Optionally, the apparatus further includes an acquisition unit 330, configured to acquire 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;

[0381] The generating unit 310 is configured to generate the first air interface capability of the preset UE and the second air interface capability of the preset UE according to the air interface capability of the preset UE, the air interface capability of the first RAN, and the air interface capability of the second RAN.

[0382] Optionally, the processing unit 320 is specifically configured to:

[0383] Performing air interface configuration with the preset UE according to the first air interface capability of the preset UE;

[0384] The second air interface capability of the preset UE is sent to the second RAN, so that the second RAN performs air interface configuration with the preset UE according to the second air interface capability of the preset UE.

[0385] Optionally, the preset first air interface capability of the UE is the air interface capability used when the preset UE is connected to a RAN of a first radio access technology RAT type, and the preset second air interface capability of the UE is the air interface capability used when the preset UE is connected to a RAN of a second RAT type.

[0386] Below, please refer to Figure 9, which is a structural diagram of a communication connection device provided in 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, the communication interface 930, communicate through the bus 940, and can also achieve communication through other means such as wireless transmission. The memory 920 stores program code, and the processor 910 can call the program code stored in the memory 920 to perform the operations performed by the first AMF, the second AMF or the third AMF mentioned above, to implement any one of the communication connection methods provided in the embodiment of the present application, which will not be repeated here.

[0387] It should be understood that in the embodiment of the present application, the processor 910 may be a CPU, or may 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. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0388] The memory 920 may include a read-only memory and a random access memory, and provides 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.

[0389] The memory 920 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0390] In addition to the data bus, bus 940 may also include a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus 940 in the figure. Bus 940 may 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. Bus 740 can be divided into an address bus, a data bus, a control bus, etc.

[0391] The communication connection device 900 may also include one or more communication interfaces, one or more operating systems, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0392] It should be noted that Figure 9 is only one possible implementation of the embodiment of the present application. In actual applications, the communication connection device 900 may also include more or fewer components, which is not limited here. For content not shown or described in the embodiments of the present application, please refer to the AMF-related description in Figures 2b, 3b, 4b, or 5b above, and will not be repeated here.

[0393] Below, please refer to Figure 10, which is a structural diagram of a communication connection device provided in an embodiment of the present application. The communication connection 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, 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 code, and the processor 1010 can call the program code stored in the memory 1020 to perform the operations performed by the first AMF, the second AMF or the third AMF mentioned above, to implement any one of the communication connection methods provided in the embodiment of the present application, which will not be repeated here.

[0394] It should be understood that in the embodiment of the present application, the processor 1010 may be a CPU, or may 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. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0395] The memory 1020 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1010. The memory 1020 may also include a non-volatile random access memory. For example, the memory 1020 may also store information on the device type.

[0396] The memory 1020 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0397] In addition to the data bus, bus 1040 may also include a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus 1040 in the figure. Bus 1040 may 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), or a cache coherent interconnect for accelerators (CCIX). Bus 740 may be divided into an address bus, a data bus, a control bus, and the like.

[0398] The communication connection device 1000 may also include one or more communication interfaces, one or more operating systems, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0399] It should be noted that Figure 10 is only one possible implementation of the embodiment of the present application. In actual applications, the communication connection device 1000 may also include more or fewer components, which is not limited here. For content not shown or described in the embodiments of the present application, please refer to the description related to the preset UE in Figures 2b, 3b, 4b, or 5b above, and will not be repeated here.

[0400] Below, please refer to Figure 11, which is a structural diagram of a communication connection device provided in an embodiment of the present application. The communication connection 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, the communication interface 1130, communicate through the bus 1140, and can also achieve communication through other means such as wireless transmission. The memory 1120 stores program code, and the processor 1110 can call the program code stored in the memory 1120 to perform the operations performed by the first AMF, the second AMF or the third AMF mentioned above, to implement any one of the communication connection methods provided in the embodiment of the present application, which will not be repeated here.

[0401] It should be understood that in the embodiment of the present application, the processor 1110 may be a CPU, or may 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. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0402] The memory 1120 may include a read-only memory and a random access memory, and provides 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 on the device type.

[0403] The memory 1120 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. The nonvolatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0404] In addition to the data bus, bus 1140 may also include a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus 1140 in the figure. Bus 1140 may 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. Bus 740 may be divided into an address bus, a data bus, a control bus, etc.

[0405] The communication connection device 1100 may also include one or more communication interfaces, one or more operating systems, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0406] It should be noted that Figure 11 is only one possible implementation of an embodiment of the present application. In actual applications, the communication connection device 1100 may also include more or fewer components, and this is not limited here. For matters not shown or described in the embodiments of the present application, please refer to the description related to the first RAN in Figures 2b, 3b, 4b, or 5b above, and will not be repeated here.

[0407] An embodiment of the present application also provides a computer-readable storage medium, including computer-readable instructions. When the computer-readable instructions are executed on a computer, the computer executes any one of the implementation methods shown in the aforementioned method embodiments.

[0408] An embodiment of the present application also provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are run on a computer, the computer executes any one of the implementation methods shown in the aforementioned method embodiments.

[0409] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0410] In the several embodiments provided in this 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 schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0411] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0412] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0413] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims

1. A communication connection method, characterized in that: include: The preset access and mobility management function device obtains the air interface capability of the preset terminal and the first air interface capability of the preset terminal, the first air interface capability of the preset UE is a subset of the air interface capability of the preset terminal, and the preset terminal is connected to the preset access and mobility management function device through the first access network device; The preset access and mobility management function device obtains the working mode information of the preset terminal, where 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 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.

2. The method according to claim 1, characterized in that The preset access and mobility management function device sends the air interface capability of the preset terminal to the first access network device according to the working mode information of the preset terminal, or the first air interface capability 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 air interface 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 an access network device, the preset access and mobility management function device sends the air interface 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 air interface capability of the preset terminal is an air interface capability set generated by a first device according to the air interface capability of the preset terminal, and 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 comprises: The preset access and mobility management function device acquires the second air interface capability of the preset terminal, where the second air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and 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 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.

6. The method according to claim 1 or 2, characterized in that: The preset access and mobility management function device obtains the working mode information of the preset terminal, including: 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 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, characterized in that: The first air interface capability of the preset terminal is an air interface capability used when the preset terminal is connected to an access network device of a first wireless access technology type, and the wireless access technology type of the first access network device is the first wireless access technology type.

8. The method according to claim 5, characterized in that The second air interface capability of the preset terminal is an air interface capability used when the preset terminal is connected to an access network device of a second wireless access technology type, and the wireless access technology type of the second access network device is the second wireless access technology type.

9. A communication connection method, characterized in that: include: The preset terminal generates a first air interface capability of the preset terminal and a second air interface capability of the preset terminal, wherein the first air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and the second air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal; The preset terminal processes the first air interface capability of the preset terminal and the second air 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 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.

10. The method according to claim 9, characterized in that The method further comprises: The preset terminal obtains the air interface capability of the preset terminal, the air interface capability of the first access network device, and the air interface capability of the second access network device; The preset terminal generates a first air interface capability of the preset terminal and a second air interface capability of the preset terminal, including: The preset terminal generates a first air interface capability of the preset terminal and a second air interface capability of the preset terminal according to the air interface capability of the preset terminal, the air interface capability of the first access network device, and the air interface capability of the second access network device.

11. The method according to claim 9 or 10, characterized in that: The preset terminal processes the first air interface capability of the preset terminal and the second air interface capability of the preset terminal, including: The preset terminal sends the first air interface capability of the preset terminal to the first access and mobility management device, and the first access and mobility management device is responsible for access management of the preset terminal; The preset terminal sends the second air interface capability of the preset terminal to the second access and mobility management device, and the second access and mobility management device is responsible for access management of the preset terminal.

12. The method according to claim 9 or 10, characterized in that The preset terminal processes the first air interface capability of the preset terminal and the second air interface capability of the preset terminal, including: The preset terminal sends the first air interface capability of the preset terminal and the second air interface capability of the preset terminal to the preset access and mobility management function device, and the preset access and mobility management function device is responsible for access management of the preset terminal.

13. The method according to claim 9 or 10, characterized in that: The method further comprises: The preset terminal sends single connection mode information, or dual connection mode information, to the preset access and mobility management function device, wherein 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, characterized in that: The first air interface capability of the preset terminal is the air interface capability used when the preset terminal connects to an access network device of a first wireless access technology type, and the second air interface capability of the preset terminal is the air interface capability used when the preset terminal connects to an access network device of a second wireless access technology type.

15. A communication connection method, characterized in that: include: The first access network device generates a first air interface capability of a preset terminal and a second air interface capability of the preset terminal, wherein the first air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and the second air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal; The first access network device processes the first air interface capability of the preset terminal and the second air 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 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 first air interface capability of the preset terminal. The second air interface capability performs air interface configuration with the preset terminal.

16. The method according to claim 15, characterized in that The method further comprises: The first access network device acquires the air interface capability of the preset terminal, the air interface capability of the first access network device, and the air interface capability of the second access network device; The first access network device generates a first air interface capability of a preset terminal and a second air interface capability of the preset terminal, including: The first access network device generates the first air interface capability of the preset terminal and the second air interface capability of the preset terminal according to the air interface capability of the preset terminal, the air interface capability of the first access network device, and the air interface capability of the second access network device.

17. The method according to claim 15 or 16, characterized in that The first access network device processes the first air interface capability of the preset terminal 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, characterized in that: The first air interface capability of the preset terminal is the air interface capability used when the preset terminal connects to an access network device of a first wireless access technology type, and the second air interface capability of the preset terminal is the air interface capability used when the preset terminal connects to an access network device of a second wireless access technology type.

19. A communication connection device, characterized in that: include: an acquiring unit, configured to acquire an air interface capability of a preset terminal and a first air interface capability of the preset terminal, wherein the first air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and the preset terminal is 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, where the working mode information of the preset terminal indicates the number of access network devices connected to the preset terminal; A sending unit is used 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, characterized in that: include: a generating unit, configured to generate a first air interface capability of the preset terminal and a second air interface capability of the preset terminal, wherein the first air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and the second air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal; A processing unit is used to process the first air interface capability of the preset terminal and the second air 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 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, characterized in that: include: A generating unit, configured to generate a first air interface capability of a preset terminal and a second air interface capability of the preset terminal, wherein the first air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal, and the second air interface capability of the preset terminal is a subset of the air interface capability of the preset terminal; A processing unit is used to process the first air interface capability of the preset terminal and the second air 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 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.

22. A communication connection device, characterized in that: The method comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store a program; The processor is configured to execute the program in the memory so as to perform the method according to any one of claims 1 to 8.

23. A communication connection device, characterized in that: The method comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store a program; The processor is configured to execute the program in the memory so as to perform the method according to any one of claims 9 to 14.

24. A communication connection device, characterized in that: The method comprises a processor and a memory, wherein the processor is coupled to the memory, and the memory is used to store a program; The processor is configured to execute the program in the memory so as to perform the method according to any one of claims 15 to 18.

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