Access method, access system, and related device

Abstract

The present disclosure relates to wireless communication and terminal technologies, and relates to an access method, an access system, and a related device. The access method comprises: a user equipment sends a request to a core network by means of a 3GPP access network, wherein the request comprises multi-access indication information, and the multi-access indication information is used for indicating registration of 3GPP access and non-3GPP access of the user equipment; and the user equipment receives a response message.

Description

Access method, access system and related equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the application with Chinese application number 202311825494.2 and application date December 27, 2023, and claims its priority. The disclosed content of the Chinese application is hereby introduced as a whole into this application. Technical Field

[0003] The present disclosure relates to wireless communication and terminal technologies, and in particular to an access method, an access system, and related devices. Background Art

[0004] In existing specifications, in non-3GPP (3rd Generation Partnership Project) access scenarios, UE (User Equipment) typically accesses the 5G Core (5GC) through the Non-3GPP Interworking Function (N3IWF) or the Trusted Non-3GPP Gateway Function (TNGF). However, due to hardware limitations and the commercial deployment of N3IWF and TNGF, the implementation of this architecture has been difficult to implement.

[0005] Summary of the Invention

[0006] According to a first aspect of some embodiments of the present disclosure, an access method is provided, including: a user equipment sends a request to a core network through a 3GPP access network, the request including multi-access indication information, the multi-access indication information being used to indicate registration for 3GPP access and non-3GPP access of the user equipment; and the user equipment receives a response message.

[0007] In some embodiments, the user equipment is located in a 3GPP serving and non-3GPP serving coverage area.

[0008] In some embodiments, the multiple access indication information is used to indicate that the access type of the user equipment is registered as 3GPP access and non-3GPP access.

[0009] In some embodiments, the multi-access indication information includes at least one of a registration type of the multi-access registration and an indication that the user equipment supports a lightweight ASSSS function.

[0010] In some embodiments, the multi-access indication information includes an indication that the user equipment supports the lightweight ATSSS function, and the user equipment receives the response message including: when the core network supports the lightweight ATSSS function, the user equipment receives the registration response sent by the core network.

[0011] In some embodiments, when the AMF (Access and Mobility Management Function) in the core network supports lightweight ASSSS function, the request is sent to the AMF, and the user equipment receives the registration response sent by the core network, including: the user equipment receives the registration response sent by the AMF.

[0012] In some embodiments, the user equipment receiving the response message includes: when the core network does not support the lightweight ASSSS function, the user equipment receiving a rejection message.

[0013] In some embodiments, the access method further includes: the user equipment uses the data network through at least one of 3GPP access and non-3GPP access.

[0014] In some embodiments, the request is a registration request.

[0015] According to a second aspect of some embodiments of the present disclosure, an access method is provided, including: an AMF in a core network receives a request sent by a user equipment through a 3GPP access network, wherein the request includes indication information of multiple access; the AMF registers the access type of the user equipment as 3GPP access and non-3GPP access based on the indication information of multiple access; and the AMF sends a registration response to the user equipment.

[0016] In some embodiments, the multi-access indication information includes at least one of a registration type of the multi-access registration and an indication that the user equipment supports a lightweight ASSSS function.

[0017] In some embodiments, the multi-access indication information includes an indication that the user equipment supports the lightweight ATSSS function, and the AMF supports the lightweight ASSSS function.

[0018] In some embodiments, the AMF registers the access type of the user equipment as 3GPP access and non-3GPP access, including: the AMF registers the access type of the user equipment with the Unified Data Management (UDM), and the access type is 3GPP access and non-3GPP access.

[0019] According to a third aspect of some embodiments of the present disclosure, a user equipment is provided, comprising: a sending module configured to send a request to a core network through a 3GPP access network, the request including multi-access indication information, the multi-access indication information being used to indicate registration of 3GPP access and non-3GPP access of the user equipment; and a receiving module configured to receive a response message.

[0020] According to a fourth aspect of some embodiments of the present disclosure, an access device is provided, located in the AMF, and includes: a receiving module configured to receive a request sent by a user equipment through a 3GPP access network, wherein the request includes indication information of multiple access; a registration module configured to register the access type of the user equipment as 3GPP access and non-3GPP access based on the indication information of multiple access; and a sending module configured to send a registration response to the user equipment.

[0021] According to a fifth aspect of some embodiments of the present disclosure, an access system is provided, comprising: the aforementioned user equipment; and an AMF, including the aforementioned access device.

[0022] In some embodiments, the access system further includes: a UDM configured to store an access type of the user equipment.

[0023] In some embodiments, the access system also includes: an access network device, configured to receive a request sent by a user device, the request carrying an indication that the user device supports the lightweight ATSSS function; select an AMF that supports the lightweight ATSSS function from one or more AMFs; and send a request to the AMF.

[0024] According to a sixth aspect of some embodiments of the present disclosure, there is provided an electronic device, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any one of the aforementioned access methods based on instructions stored in the memory.

[0025] According to a seventh aspect of some embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, wherein the program implements any of the aforementioned access methods when executed by a processor.

[0026] According to an eighth aspect of some embodiments of the present disclosure, there is provided a computer program comprising: instructions, which, when executed by a processor, cause the processor to perform any one of the aforementioned access methods.

[0027] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] FIG1 shows a schematic flow chart of an access method according to some embodiments of the present disclosure.

[0030] FIG2 shows a schematic flow chart of an access method according to other embodiments of the present disclosure.

[0031] FIG3 exemplarily shows a schematic diagram of a lightweight multi-access network architecture of the present disclosure.

[0032] FIG4 shows a schematic structural diagram of a user equipment according to some embodiments of the present disclosure.

[0033] FIG5 shows a schematic structural diagram of an access device according to some embodiments of the present disclosure.

[0034] FIG6 shows a schematic structural diagram of an access system according to some embodiments of the present disclosure.

[0035] FIG7 shows a schematic structural diagram of an electronic device according to some embodiments of the present disclosure.

[0036] FIG8 shows a schematic structural diagram of an electronic device according to some other embodiments of the present disclosure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0038] Unless specifically stated otherwise, the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0039] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0040] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0041] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0042] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0043] The technical solutions of the various embodiments of the present disclosure can be applied to various communication systems according to the access standard, such as: 5th Generation (5G) or New Radio (NR) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, etc.

[0044] The 5G system (5GS) architecture consists of three parts: user equipment, data network (DN), and operator network. The operator network can include one or more of the following network elements: (Radio) Access Network (R)AN equipment, User Plane Function (UPF) network element, AMF network element, Session Management Function (SMF) network element, and UDM network element.

[0045] The technical solutions provided by the present disclosure can also be applied to future communication systems, such as the sixth-generation mobile communication system. The technical solutions provided by the present disclosure can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0046] There are two types of current wireless access technologies: 3GPP access technologies (for example, wireless access technologies used in third generation (3G), fourth generation (4G) or 5G systems) and non-3GPP access technologies. 3GPP access technologies refer to access technologies that comply with 3GPP standards and specifications. For example, the access network equipment in a 5G system is called a next-generation base station node (gNB) or RAN equipment. Non-3GPP access technologies can include air interface technologies represented by access points (APs) in Wireless Fidelity (WiFi), Worldwide Interoperability For Microwave Access (Wimax), Code Division Multiple Access (CDMA), etc. AN equipment can allow terminal devices and the 3GPP core network to interconnect and communicate using non-3GPP technologies.

[0047] Terminal devices, also known as user equipment (UE), terminals, etc., are devices with wireless transceiver capabilities that can communicate with one or more core networks (CNs) via access network equipment within the (R)AN. They can be deployed on land, indoors or outdoors, handheld, wearable, or in vehicles; on water, such as on ships; or in the air, such as on airplanes, balloons, or satellites. Terminal devices can include mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.

[0048] The (R)AN provides network access for authorized user devices in a specific area and can use transmission tunnels of varying quality based on the user device level and service requirements. For example, the (R)AN manages radio resources, provides access services to user devices, and forwards control information and / or data between user devices and the core network.

[0049] (R)AN equipment can provide authorized users in a specific area with the function of accessing the communication network, and specifically can include wireless network equipment in a 3GPP network and can also include access points in a non-3GPP (Non-3GPP) network.

[0050] Access network equipment may include: gNB in ​​5G system, evolved Node B (eNB) in LTE, radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, Home Evolved Node B, or Home Node B, HNB), base band unit (BBU), transmission point (TRP), transmission point (TP), small base station equipment (Pico), mobile switching center, or network equipment in future networks.

[0051] The core network includes multiple core network elements (or network function network elements), such as: AMF network element, SMF network element, UPF network element, UDM network element, application layer function (Application Function, AF) network element, and PCF network element, authentication server function (Authentication Server Function, AUSF) network element, edge application server discovery function (Edge Application Server Discovery Function, EASDF) network element and network exposure function (Network Exposure Function, NEF) network element, etc.

[0052] In related technologies, the non-3GPP side in the multi-access network architecture accesses 5GC through N3IWF, TNGF, etc. When the UE registers to the 5GC through the non-3GPP side, it will register the access type (non-3GPP access) to the Unified Data Management (UDM). At the same time, the network will issue the N3IWF key (N3IWF key) to facilitate the establishment of an Internet Protocol Security (IPSec) connection between the UE and N3IWF in subsequent sessions.

[0053] However, considering that the above architecture is limited by the commercialization of N3IWF / TNGF and has not been implemented yet, a technical problem to be solved by the embodiments of the present disclosure is: how to achieve multi-access of user equipment without relying on non-3GPP network elements such as N3IWF and TNGF.

[0054] After analysis, this disclosure proposes a method for a user equipment to simultaneously register 3GPP access and non-3GPP access with the core network (e.g., 5GC) through the registration process on the 3GPP access side. Since non-3GPP networks lack access network elements to the 5GC, their control plane signaling must be performed through the 3GPP access side. This means that the non-3GPP registration process must be completed through the 3GPP side. An embodiment of the access method disclosed herein is described below with reference to Figure 1.

[0055] Figure 1 shows a schematic flow chart of an access method according to some embodiments of the present disclosure. As shown in Figure 1 , the access method of this embodiment includes steps S102 to S104.

[0056] In step S102, the user equipment (terminal) sends a request to the core network through the 3GPP access network, where the request includes multiple access indication information, and the multiple access indication information is used to instruct registration of 3GPP access and non-3GPP access of the user equipment.

[0057] The request is, for example, a registration request. For example, the request message in the 3GPP registration process may be reused, but the content of the request message may be modified so as to carry the multi-access indication information.

[0058] In some embodiments, the user equipment sends a request when the user equipment is located in an area covered by both 3GPP services and non-3GPP services. In this area, the user has a multi-access network environment and can use the 3GPP access network to implement a multi-access registration process.

[0059] The multi-access indication information is used to directly or indirectly indicate the user equipment's registration type, that is, to indicate that the user equipment's access type is registered as 3GPP access and non-3GPP access. Therefore, after obtaining the multi-access indication information, the network-side device can perform the user equipment registration process. For example, if the core network supports multi-access, the core network device registers the user equipment's access type as 3GPP access and non-3GPP access.

[0060] In some embodiments, the multi-access indication information includes at least one of a registration type of the multi-access registration and an indication that the user equipment supports a lightweight ASSSS function.

[0061] The access type of the user equipment may be stored in the UDM. For example, the AMF in the core network may register the access type of the user equipment, i.e., 3GPP access and non-3GPP access, with the UDM. If the request does not carry multiple access indication information, such as a normal 3GPP registration process, the access type of the user equipment registered by the AMF with the UDM is 3GPP access.

[0062] In some embodiments, the multi-access indication information includes an indication of support for the lightweight ATSSS function. The lightweight ATSSS function is an ASSSS function based on a lightweight architecture. The lightweight architecture means that the architecture does not include or use functions of non-3GPP network elements such as N3IWF and TNGF. After receiving the request and obtaining the multi-access indication information therein, the network side can determine whether to perform multi-access registration based on whether the core network supports the capability of the lightweight ASSSS function. That is, if the core network supports the lightweight ASSSS function, multi-access registration is performed; if the core network does not support the lightweight ASSSS function, multi-access registration is not performed.

[0063] In some embodiments, when the network determines to perform multi-access registration, multi-access registration can be performed based on other procedures in the 3GPP access registration process specified in current standards and specifications. However, the registration type is different from the current 3GPP access registration type. For example, the registration type of the present disclosure is 3GPP access and non-3GPP access, which will not be further described here.

[0064] In step S104, the user equipment receives the response message.

[0065] The response is used to indicate whether the registration for 3GPP access and non-3GPP access is successful. If the registration process is completed on the network side, the response message is a registration response. For example, the multi-access indication information includes an indication of support for the lightweight ATSSS function. If the core network supports the lightweight ATSSS function, the user equipment receives the registration response sent by the core network.

[0066] If the network rejects the registration process or the registration process fails, the response message is a rejection message. For example, if the core network does not support the lightweight ATSSS function, the user equipment receives the rejection message.

[0067] After completing registration, for example, after receiving a registration response, the user equipment can initiate a lightweight multi-access session. That is, the user equipment can access the data network through at least one of 3GPP access and non-3GPP access. Thus, the user equipment can access the data network through multiple access methods.

[0068] The above embodiment performs multi-access registration by using the 3GPP registration process, so the present disclosure can also implement non-3GPP access registration under a lightweight multi-access architecture.

[0069] In some embodiments, if the AMF in the core network supports lightweight ATSSS functionality, a request is sent to the AMF. The AMF registers the user equipment's access type as 3GPP access and non-3GPP access. After registration is complete, the AMF sends a registration response. An embodiment of the access method disclosed herein is described below with reference to FIG2 .

[0070] Figure 2 shows a schematic flow chart of an access method according to some other embodiments of the present disclosure. As shown in Figure 2 , the access method of this embodiment includes steps S202 to S208.

[0071] In step S202, the user equipment supporting lightweight ATSSS is in the coverage area of ​​3GPP service and non-3GPP service.

[0072] In step S204, the user equipment sends a request through the 3GPP access network (R)AN, which carries an indication of support for the lightweight ASSSS function, indicating that the user equipment has the capability to support the lightweight ASSSS function. The network side chooses to accept or reject the request based on whether the core network supports the lightweight ASSSS function. For example, after the (R)AN determines that the user equipment supports the lightweight ASSSS function, it selects an AMF that supports the lightweight ASSSS function, and the AMF continues to process the request.

[0073] In step S206, when both the user equipment and the AMF support the lightweight ASSSS function, the AMF registers the access type of the user equipment with the UDM, and the access type is 3GPP access and non-3GPP access.

[0074] The registration process for 3GPP access specified in current standards and specifications also includes other processes that can be applied to the registration process for 3GPP access and non-3GPP access disclosed in this disclosure. Only the registration type is changed, which will not be repeated here.

[0075] If the network side does not support the lightweight ATSSS function, the AMF returns a rejection message to the user equipment.

[0076] In step S208, the AMF sends a registration response to the user equipment. At this point, the user equipment may consider initiating a lightweight multi-access session. In the absence of network elements such as N3IWF and TNGF, the user plane data flow on the non-3GPP side may not be transmitted over the IPSec connection.

[0077] Through the above embodiments, the 3GPP and non-3GPP registration processes can be completed by the AMF that supports the lightweight ATSSS function, thereby enabling multi-access registration of the user equipment under a lightweight architecture.

[0078] It should be noted that the above embodiments of the present disclosure can be applied to a lightweight multi-access architecture, i.e., an architecture that does not include N3IWF and TNGF non-3GPP network elements. However, if necessary, the above process of using 3GPP access to achieve non-3GPP access can also be used when the network includes non-3GPP network elements.

[0079] Figure 3 exemplarily illustrates a schematic diagram of the lightweight multi-access network architecture of the present disclosure. As shown in Figure 3 , in network 3, UE 31 connects to AMF 33 via 3GPP access network 32. 3GPP access network 32 and AMF 33 are connected via N1 and N2 interfaces. Therefore, if AMF 33 supports multi-access, UE 31 can complete the registration update process through AMF 33 to implement 3GPP and non-3GPP multi-access registration. AMF 33 is connected to SMF 34 via N11 interface, AMF 34 is connected to PCF 35 via N7 interface, and SMF 34 is connected to UPF 36 via N4 interface. After completing multi-access registration, UE 31 can connect to UPF 36 through 3GPP access network 32, and then access data network 37 through the 3GPP side. UPF 36 and data network 37 are connected via the N6 interface. Furthermore, UE 31 can connect to UPF 36 through an IP (Internet Protocol) network (such as WiFi or IP access) 38 to access data network 37 through the non-3GPP side. Under this architecture, the UE no longer needs to access the 5GC through network elements such as N3IWF or TNGF. Instead, the control plane process on the non-3GPP side is implemented through the 3GPP access side, and the non-3GPP side only retains the data plane process. The access method disclosed in this disclosure facilitates the implementation of multi-access network functions by supporting this simplified multi-access network.

[0080] The following describes related devices and systems of the present disclosure with reference to FIG. 4 to FIG. 8 .

[0081] Figure 4 shows a schematic diagram of the structure of a user equipment according to some embodiments of the present disclosure. As shown in Figure 4, the user equipment 40 of this embodiment includes: a sending module 402 configured to send a request to the core network via the 3GPP access network, the request including multi-access indication information, the multi-access indication information being used to instruct the user equipment to register for 3GPP access and non-3GPP access; and a receiving module 404 configured to receive a response message.

[0082] In some embodiments, the user equipment is located in a 3GPP serving and non-3GPP serving coverage area.

[0083] In some embodiments, the multiple access indication information is used to indicate that the access type of the user equipment is registered as 3GPP access and non-3GPP access.

[0084] In some embodiments, the multi-access indication information includes at least one of a registration type of the multi-access registration and an indication that the user equipment supports a lightweight ASSSS function.

[0085] In some embodiments, the multi-access indication information includes an indication that the user equipment supports the lightweight ATSSS function, and the receiving module 404 is further configured to receive a registration response sent by the core network when the core network supports the lightweight ATSSS function.

[0086] In some embodiments, when the AMF in the core network supports lightweight ATSSS function, the request is sent to the AMF, and the receiving module 404 is further configured to receive a registration response sent by the AMF.

[0087] In some embodiments, the receiving module 404 is further configured to receive a rejection message if the core network does not support the lightweight ASSS function.

[0088] In some embodiments, the user equipment 40 further includes: a network using module 406 configured to use a data network through at least one of 3GPP access and non-3GPP access.

[0089] In some embodiments, the request is a registration request.

[0090] FIG5 shows a schematic structural diagram of an access device according to some embodiments of the present disclosure. The access device is located in the AMF. As shown in FIG5 , the access device 50 of this embodiment includes: a receiving module 502 configured to receive a request sent by a user equipment via a 3GPP access network, wherein the request includes multi-access indication information; a registration module 504 configured to register the access type of the user equipment as 3GPP access and non-3GPP access based on the multi-access indication information; and a sending module 506 configured to send a registration response to the user equipment.

[0091] In some embodiments, the multi-access indication information includes at least one of a registration type of the multi-access registration and an indication that the user equipment supports a lightweight ASSSS function.

[0092] In some embodiments, the multi-access indication information includes an indication that the user equipment supports the lightweight ATSSS function, and the AMF supports the lightweight ASSSS function.

[0093] In some embodiments, the registration module 504 is further configured to register the access type of the user equipment with the UDM by the AMF, where the access type is 3GPP access and non-3GPP access.

[0094] Figure 6 shows a schematic diagram of the structure of an access system according to some embodiments of the present disclosure. As shown in Figure 6, the access system 6 of this embodiment includes a user equipment 40; and an AMF 62, including the aforementioned access device 50.

[0095] In some embodiments, the access system 6 further includes a UDM 64 configured to store the access type of the user equipment.

[0096] In some embodiments, the access system 6 also includes: an access network device 66, configured to receive a request sent by a user device, the request carrying an indication that the user device supports the lightweight ATSSS function; select an AMF that supports the lightweight ATSSS function from one or more AMFs; and send a request to the AMF.

[0097] Figure 7 shows a schematic diagram of the structure of an electronic device according to some embodiments of the present disclosure. As shown in Figure 7, the electronic device 70 of this embodiment includes: a memory 710 and a processor 720 coupled to the memory 710, wherein the processor 720 is configured to execute the access method of any of the aforementioned embodiments based on instructions stored in the memory 710.

[0098] The memory 710 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, application programs, a boot loader, and other programs.

[0099] FIG8 shows a schematic diagram of the structure of an electronic device according to other embodiments of the present disclosure. As shown in FIG8 , the electronic device 80 of this embodiment includes: a memory 810 and a processor 820, and may also include an input / output interface 830, a network interface 840, a storage interface 850, and the like. These interfaces 830, 840, 850 and the memory 810 and the processor 820 can be connected, for example, via a bus 860. Among them, the input / output interface 830 provides a connection interface for input / output devices such as a display, mouse, keyboard, and touch screen. The network interface 840 provides a connection interface for various networked devices. The storage interface 850 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0100] An embodiment of the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, wherein the program implements any of the aforementioned access methods when executed by a processor.

[0101] Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0103] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0104] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0105] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. An access method, comprising: The user equipment sends a request to the core network through a 3GPP access network, where the request includes indication information for multi-access, and the indication information for multi-access is used to indicate registration of 3GPP access and non-3GPP access of the user equipment; The user equipment receives a response message.

2. The access method according to claim 1, wherein, The user equipment is located in a 3GPP service and non-3GPP service coverage area.

3. The access method according to claim 1 or 2, wherein The indication information for multi-access is used to indicate that the access type of the user equipment is registered as 3GPP access and non-3GPP access.

4. The access method according to any one of claims 1 to 3, wherein, The indication information for multi-access includes at least one of a registration type for multi-access registration and an indication that the user equipment supports lightweight access traffic steering, conversion, and splitting (ATSSS) functions.

5. The access method according to any one of claims 1 to 4, wherein, The indication information for multi-access includes an indication that the user equipment supports lightweight ATSSS functions, and the user equipment receiving the response message includes: When the core network supports lightweight ATSSS functions, the user equipment receives a registration response sent by the core network.

6. The access method according to claim 5, wherein, When the access and mobility management function (AMF) in the core network supports lightweight ATSSS functions, the request is sent to the AMF, and the user equipment receiving the registration response sent by the core network includes: The user equipment receives a registration response sent by the AMF.

7. The access method according to claim 5 or 6, wherein The user equipment receiving the response message includes: When the core network does not support lightweight ATSSS functions, the user equipment receives a rejection message.

8. The access method according to any one of claims 1 to 7, further comprising: The user equipment uses a data network through at least one of 3GPP access and non-3GPP access.

9. The access method according to any one of claims 1 to 8, wherein, The request is a registration request.

10. An access method, comprising: The AMF in the core network receives a request sent by the user equipment through a 3GPP access network, where the request includes indication information for multi-access; Based on the indication information for multi-access, the AMF registers the access type of the user equipment as 3GPP access and non-3GPP access; The AMF sends a registration response to the user equipment.

11. The access method according to claim 10, wherein, The indication information for multi-access includes at least one of a registration type for multi-access registration and an indication that the user equipment supports lightweight ATSSS functions.

12. The access method according to claim 10 or 11, wherein, The indication information for multi-access includes an indication that the user equipment supports lightweight ATSSS functions, and the AMF supports lightweight ATSSS functions.

13. The access method according to any one of claims 10 to 12, wherein, The AMF registering the access type of the user equipment as 3GPP access and non-3GPP access includes: The AMF registers the access type of the user equipment, which is 3GPP access and non-3GPP access, with the unified data management (UDM).

14. A user equipment, comprising: A sending module configured to send a request to the core network through a 3GPP access network, where the request includes indication information for multi-access, and the indication information for multi-access is used to indicate registration of 3GPP access and non-3GPP access of the user equipment; A receiving module configured to receive a response message.

15. An access device, located in the AMF, includes: A receiving module, configured to receive a request sent by a user equipment through a 3GPP access network, where the request includes indication information of multi-access; A registration module, configured to register the access type of the user equipment as 3GPP access and non-3GPP access based on the indication information of multi-access; A sending module, configured to send a registration response to the user equipment.

16. An access system, includes: The user equipment according to claim 14; The AMF, including the access device according to claim 15.

17. The access system according to claim 16, further includes: A UDM, configured to store the access type of the user equipment.

18. The access system according to claim 16 or 17, further includes: An access network device, configured to receive a request sent by the user equipment, where the request carries an indication that the user equipment supports the lightweight ATSSS function; Select an AMF that supports the lightweight ATSSS function from one or more AMFs; send the request to the AMF.

19. An electronic device, includes: A memory; And A processor coupled to the memory, the processor being configured to execute the access method according to any one of claims 1 to 13 based on instructions stored in the memory.

20. A computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the access method according to any one of claims 1 to 13.

21. A computer program, includes: Instructions, when the instructions are executed by a processor, cause the processor to execute the access method according to any one of claims 1 to 13.

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