Wireless communication method, terminal device and network device

Abstract

The embodiment of the invention relates to a wireless communication method, terminal equipment and network equipment, which can effectively realize the movement of the terminal equipment from one NPN network of a plurality of NPN networks to another NPN network when one independent entity is connected with the plurality of NPN networks at the same time. The wireless communication method is applied to a source network, the source network comprises source access network equipment and / or source core network equipment, the method comprises the following steps: the source network equipment sends a request message, and the request message is used for requesting to switch connection between terminal equipment and the source network to connection between the terminal equipment and a target network; the source network device receives a request response message, wherein the request response message is used for indicating the terminal device to switch from the source network to the target network; wherein the source network and the target network are non-public networks, and the source network and the target network are connected with independent entities at the same time.

Description

[0001] This application is a divisional application of the invention patent application with the application date of November 8, 2019, application number 201980099959.6, and invention name “Method, terminal equipment and network equipment for wireless communication”. Technical Field

[0002] The present application relates to the field of communications, and in particular to a wireless communication method, terminal equipment, and network equipment. Background Art

[0003] In wireless communication systems, public network systems are typically deployed, i.e., those based on the Public Land Mobile Network (PLMN). However, in certain scenarios, such as offices, homes, or factories, local users or administrators may deploy local or private networks, i.e., non-public networks (NPNs), for more efficient and secure management.

[0004] In some specific scenarios, a separate entity can be connected to multiple NPN networks at the same time. In this case, the terminal device can move from one NPN network to another NPN network. Summary of the Invention

[0005] The embodiments of the present application provide a wireless communication method, terminal device, and network device, which can effectively realize the movement of the terminal device from one NPN network to another NPN network when a single entity is connected to multiple NPN networks at the same time.

[0006] In a first aspect, a method for wireless communication is provided, which is applied to a source network, wherein the source network includes a source access network device and / or a source core network device, and the method includes: the source network device sends a switching request message, wherein the switching request message is used to request that the connection between the terminal device and the source network be switched to the connection between the terminal device and the target network; the source network device receives a switching request response message, wherein the switching request response message is used to instruct the terminal device to switch from the source network to the target network; wherein the source network and the target network are non-public networks, and the source network and the target network are simultaneously connected to a separate entity SP of a service provider.

[0007] In a second aspect, a method for wireless communication is provided, which is applied to a target network, wherein the target network includes a target access network device and / or a target core network device, and the method includes: the target network device receives a request message, wherein the switching request message is used to request that the connection between the terminal device and the source network be switched to the connection between the terminal device and the target network; the target network device sends a request response message, wherein the request response message is used to instruct the terminal device to switch from the source network to the target network; wherein the source network and the target network are non-public networks, and the source network and the target network are simultaneously connected to separate entities.

[0008] According to a third aspect, a method for wireless communication is provided, the method comprising: a separate entity receiving a request message sent by a source core network device in a source network, the request message being used to request that a connection between a terminal device and the source network be switched to a connection between the terminal device and a target network; the separate entity sending a request response message to the source core network device, the request response message being used to instruct the terminal device to switch from the source network to the target network; wherein the source network and the target network are non-public networks, and the source network and the target network are simultaneously connected to the separate entity.

[0009] In a fourth aspect, a method for wireless communication is provided, the method comprising: a terminal device receives first information sent by a source access network device in a source network, the first information being used to instruct the terminal device to switch from the source network to a target cell in a target network; the terminal device switches from the source network to the target cell based on the first information; wherein the source network and the target network are non-public networks, and the source network and the target network are simultaneously connected to separate entities.

[0010] In a fifth aspect, a network device is provided for executing the method in the above-mentioned first aspect or its various implementations.

[0011] Specifically, the network device includes a functional module for executing the method in the above-mentioned first aspect or its various implementation modes.

[0012] In a sixth aspect, a network device is provided for executing the method in the above second aspect or its various implementations.

[0013] Specifically, the network device includes a functional module for executing the method in the above-mentioned second aspect or its various implementation modes.

[0014] In a seventh aspect, a network device is provided for executing the method in the third aspect or its various implementations.

[0015] Specifically, the network device includes a functional module for executing the method in the above-mentioned third aspect or its various implementation modes.

[0016] In an eighth aspect, a terminal device is provided for executing the method in the fourth aspect or its various implementations.

[0017] Specifically, the terminal device includes a functional module for executing the method in the above-mentioned fourth aspect or its various implementation methods.

[0018] In a ninth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the first aspect or its respective implementations.

[0019] In a tenth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the second aspect or its respective implementations.

[0020] In an eleventh aspect, a network device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the third aspect or its respective implementations.

[0021] In a twelfth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the fourth aspect or its respective implementations.

[0022] In the thirteenth aspect, a device is provided for implementing the method in any one of the first to fourth aspects or their respective implementations.

[0023] Specifically, the apparatus includes: a processor for calling and running a computer program from a memory, so that a device equipped with the apparatus executes the method of any one of the first to fourth aspects or its respective implementations.

[0024] Optionally, the device is a chip.

[0025] In a fourteenth aspect, a computer-readable storage medium is provided for storing a computer program, which enables a computer to execute the method in any one of the above-mentioned first to fourth aspects or their respective implementations.

[0026] In a fifteenth aspect, a computer program product is provided, comprising computer program instructions, which enable a computer to execute the method in any one of the above-mentioned first to fourth aspects or their respective implementations.

[0027] In the sixteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the above-mentioned first to fourth aspects or their respective implementations.

[0028] In the above technical solution, when a single entity is connected to multiple NPN networks at the same time, the source network device can effectively realize the movement of the terminal device from one NPN network to another NPN network among the multiple NPN networks by sending a request message for requesting to switch the connection between the terminal device and the source NPN network to the connection between the terminal device and the target NPN network, and receiving a request response message for instructing the terminal device to switch from the source NPN network to the target NPN network. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of a communication system architecture according to an embodiment of the present application.

[0030] Figure 2 This is a schematic diagram of an NPN network serving other networks according to an embodiment of the present application.

[0031] Figure 3 This is a schematic diagram of a single entity connecting to multiple NPN networks simultaneously according to an embodiment of the present application.

[0032] Figure 4-Figure 7 is a schematic diagram of a wireless communication method according to an embodiment of the present application.

[0033] Figures 8-10 It is a specific flow chart of the wireless communication method according to an embodiment of the present application.

[0034] Figure 11-13 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0035] Figure 14 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0036] Figure 15 It is a schematic block diagram of a communication device according to an embodiment of the present application.

[0037] Figure 16 is a schematic block diagram of a device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

[0040] Figure 1A wireless communication system 100 to which an embodiment of the present application is applied is shown. The wireless communication system 100 may include an access network device 110. The access network device 110 may be a device that communicates with a terminal device. The access network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices located within the coverage area. Optionally, the access network device 110 may be a Next Generation Radio Access Network (NGRAN), or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN). Alternatively, the access network device 110 may be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved Public Land Mobile Network (PLMN). Optionally, the access network device 110 may also be a base station in an LTE system, for example, an E-UTRAN device.

[0041] The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the access network device 110. The terminal device 120 can be mobile or fixed. Optionally, as used herein, "terminal device" includes but is not limited to a connection via a wired line, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another terminal device configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal device configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that can combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that can include radiotelephones, pagers, Internet / Intranet access, web browsers, notepads, calendars, BeiDou Navigation Satellite System (BDS) and Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal device can be referred to as an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

[0042] The wireless communication system 100 also includes a core network device 130 for communicating with access network devices. Optionally, the core network device 130 may be a 5G core network device, such as an Access and Mobility Management Function (AMF), which is responsible for access and mobility management and has functions such as user authentication, handover, and location update. Another example is a Session Management Function (SMF), which is responsible for session management, including the establishment, modification, and release of packet data unit (PDU) sessions. Another example is a User Plane Function (UPF), which is responsible for forwarding user data.

[0043] Optionally, terminal devices may perform direct terminal connection (Device to Device, D2D) communication between each other.

[0044] Figure 1 An access network device, a core network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple access network devices and the coverage range of each access network device may include other numbers of terminal devices, which is not limited in this embodiment of the present application.

[0045] It should be understood that the terms "system" and "network" are often used interchangeably herein.

[0046] Currently, ordinary terminal devices can transmit data services through public networks (PLMNs). However, in some scenarios, such as offices, homes, or factories, local users or managers often deploy NPN networks for more efficient and secure management.

[0047] The NPN network includes the Public Network Integrated NPN (PNI-NPN) network and the Stand-alone Non-Public Network (SNPN) network.

[0048] A PNI-NPN network is a private network that supports the private use of a Public Land Mobile Network (PLMN). This network utilizes the public PLMN to provide private network services. An SNPN is a private network that is not part of the 3GPP public network. Specifically, a specific entity, such as a factory operator, uses a reserved PLMN for private network services. A PNI-NPN is also known as a Closed Access Group (CAG).

[0049] like Figure 2 As shown, an NPN network can serve other networks. These other networks can be third-party service providers (SPs), PLMN networks, or third-party contract or certificate providers. In this scenario, a terminal device can discover other networks and connect to them through the NPN network for related communications.

[0050] In some specific scenarios, a single entity can be connected to multiple NPN networks at the same time. Figure 3 ,exist Figure 3 In the IEEE 802.11 standard, both NPN1 and NPN2 support SP1. In this case, end devices can move from NPN1 to NPN2. However, when multiple NPNs are connected to a single entity, there are currently no clear regulations for how end devices can connect from one NPN to another in the multiple NPNs.

[0051] In view of this, an embodiment of the present application proposes a wireless communication method, which can effectively realize the movement of a terminal device from one NPN network to another NPN network when a single entity is connected to multiple NPN networks at the same time.

[0052] Figure 4 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. Figure 4 The method described can be applied to a source network (e.g. Figure 3 In NPN1), the source network may include source access network equipment and / or source core network equipment. Figure 4 As shown, the method 200 may include at least part of the following contents.

[0053] In 210 , the source network device sends a request message, where the request message is used to request to switch the connection between the terminal device and the source network to a connection between the terminal device and the target network.

[0054] In 220 , the source network device receives a request response message, where the request response message is used to instruct the terminal device to switch from the source network to the target network.

[0055] The source network and the target network are NPN networks, and the source network and the target network are connected to separate entities at the same time.

[0056] Optionally, the independent entity may be an SP, or may also be an entity to which the PLMN belongs. For example, the independent entity may be a contracting entity deployed by the PLMN.

[0057] Figure 5 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. Figure 5 The method described can be applied to a target network (e.g. Figure 3 NPN2 in the target network may include a target access network device and / or a target core network device. Figure 5 As shown, the method 300 may include at least part of the following contents.

[0058] In 310 , the target network device receives a request message, where the request message is used to request switching a connection between the terminal device and the source network to a connection between the terminal device and the target network.

[0059] In 320 , the target network device sends a request response message, where the request response message is used to instruct the terminal device to switch from the source network to the target network.

[0060] The source network and the target network are NPN networks, and the source network and the target network are connected to separate entities at the same time.

[0061] Figure 6 is a schematic flowchart of a wireless communication method 400 according to an embodiment of the present application. Figure 6 The method described can be applied to a single entity (e.g. Figure 3 SP1 in ). Figure 6 As shown, the method 400 may include at least part of the following contents.

[0062] In 410 , a separate entity receives a request message sent by a source core network device, where the request message is used to request switching a connection between the terminal device and the source network to a connection between the terminal device and the target network.

[0063] In 420 , the separate entity sends a request response message to the target core network device, where the request response message is used to instruct the terminal device to switch from the source network to the target network.

[0064] The source network and the target network are NPN networks, and the source network and the target network are connected to separate entities at the same time.

[0065] Figure 7 is a schematic flowchart of a wireless communication method 500 according to an embodiment of the present application. Figure 7 The method described above can be executed by a terminal device. Figure 7 As shown, the method 500 may include at least part of the following contents.

[0066] In 510, the terminal device receives first information sent by the source access network device, where the first information is used to instruct the terminal device to switch from the source network to the target cell of the target network.

[0067] In 520, the terminal device switches from the source network to the target cell based on the first information.

[0068] The source network and the target network are NPN networks, and the source network and the target network are simultaneously connected to separate entities.

[0069] It should be understood that the term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0070] The following will be combined Figure 4-Figure 7 The wireless communication method of the embodiment of the present application is further described. It should be understood that the content described below can be applied to method 200 as well as methods 300-500.

[0071] It should be understood that the switching of the terminal device from the source NPN network to the target NPN network mentioned above can also be expressed as: the terminal device moves from the source NPN network to the target NPN network.

[0072] In order to more clearly describe the technical solutions of the embodiments of the present application, three embodiments are described in detail below.

[0073] Example 1

[0074] The technical solution of Example 1 can be applied to a scenario where there is no interface between the target NPN network and the source NPN network. In this case, the context information of the terminal device can be forwarded by a separate entity providing services.

[0075] like Figure 8 As shown, the specific steps of the technical solution of Example 1 are as follows:

[0076] Step 1: The source access network device, namely the source radio access network (S-Radio Access Network, S-RAN), sends measurement configuration information of the target NPN network to the terminal device.

[0077] Specifically, the measurement configuration information may include but is not limited to frequency information of the target NPN network and / or cell information of the target NPN network, and also include information of separate entities supported by the target NPN network.

[0078] Step 2: The terminal device performs cell measurement based on the measurement configuration information and reports the measurement results to the source access network device.

[0079] The measurement result may include target cell information, which may include but is not limited to at least one of the following: a frequency and a physical cell identity (PCI) of the target cell, an identifier of the target cell, and an index of the target cell.

[0080] Optionally, the measurement report may further include information about the first independent entity supported by the target cell.

[0081] Optionally, the measurement report may not include the first separate entity information. The terminal device may determine the first separate entity information of the relevant connection during the process of establishing the connection, such as through the signaling interaction of the Radio Resource Control (RRC) layer or the Non-access Stratum (NAS) layer.

[0082] Specifically, the terminal device may notify the source access network device of the first separate entity information during the RRC connection establishment process, or,

[0083] The source core network device may obtain the separate entity information to which the connection established by the terminal device belongs during the NAS interaction with the terminal device. For example, the source core network device may obtain the separate entity information during the registration process, the service establishment process, or the protocol data unit (PDU) session connection establishment process. The source core network device may then provide the separate entity information to which the context of the terminal device belongs to the source access network device during the terminal device context establishment process.

[0084] Optionally, the terminal device may only report cell information that can support separate entity information to the source access network device.

[0085] Step 3: The source access network device sends a request message to the core network device of the source NPN network, that is, the source AMF (S-AMF) entity, based on the measurement report reported by the terminal device. The request message is used to request that the connection between the terminal device and the source NPN network be switched to the connection between the terminal device and the target network.

[0086] The request message may include context information of the terminal device and target cell information.

[0087] Optionally, the source access network device may also determine whether the terminal device is allowed to switch to the target NPN network. Specifically, the determination may be: the source access network device obtains first authorization information through the source AMF entity, and then, based on the first authorization information, the source access network device determines whether the terminal device is allowed to switch to the target NPN network, or determines whether the terminal device is authorized to access the target NPN network, or determines whether the terminal device is authorized to switch to the target NPN network in a supported separate entity service. Separate entity services may include, but are not limited to, voice and emergency call services using the PLMN network.

[0088] Step 4: After receiving the request message, the source AMF entity may determine the separate entity based on the target cell information and / or the first separate entity information. The source AMF entity may then forward the request message, which may include the terminal device context information and the target cell information, to the separate entity.

[0089] Optionally, the request message may also carry identification information of the source NPN network and identification information of the terminal device.

[0090] In addition, the source AMF entity can obtain the session management (SM) context of the terminal device through SMF, and then the source AMF entity can carry the SM context of the terminal device in the request message.

[0091] Optionally, the source AMF entity may also determine whether to allow the terminal device to switch to the target NPN network.

[0092] Furthermore, the source AMF entity can obtain the AMF entity of the target NPN network, that is, the target AMF (T-AMF) entity, based on the target cell information and / or the first separate entity information.

[0093] Step 5: After receiving the request message sent by the source AMF entity, the separate entity determines the network entity to which the context information of the terminal device needs to be forwarded.

[0094] Specifically, if the request message sent by the source AMF entity to the separate entity includes information for indicating the target AMF, the separate entity can send the request message to the target AMF entity, that is, forward the context information of the terminal device to the target AMF entity. If the request message sent by the source AMF entity to the separate entity does not include information for indicating the target AMF entity, the separate entity can determine the target AMF entity based on the target cell information included in the request message sent by the source AMF entity to the separate entity. After that, the separate entity can forward the request message to the target AMF entity.

[0095] The request message sent by the separate entity may include target cell information and identification information of the terminal device.

[0096] It should be understood that the information used to indicate the AMF entity can explicitly indicate the target AMF entity or implicitly indicate the target AM entity F. This embodiment of the present application does not specifically limit this.

[0097] Optionally, the separate entity may also determine whether the terminal device is allowed to switch to the target NPN network. Specifically, the separate entity may obtain third authorization information through the source AMF entity, where the third authorization information is used to indicate whether the terminal device is authorized to access the target NPN network, or whether the terminal device is allowed to switch to the target NPN network, or whether the terminal device is authorized to switch to the target NPN network in the supported separate entity service.

[0098] Step 6: The target AMF entity establishes the SM context.

[0099] Furthermore, if the SMF entity is not changed, that is, the source SMF entity and the target SMF entity are the same, the address of the terminal device may not be updated. If the SMF entity is changed, the address of the terminal device needs to be updated.

[0100] Step 7: The target AMF entity determines the target access network equipment (T-RAN) based on the received target cell information.

[0101] Afterwards, the target AMF entity can forward the request message to the target access network device.

[0102] Step 8: The target access network device is ready to switch resources and returns confirmation information to the target AMF entity, that is, sends a request response message to the target AMF entity.

[0103] The request response message may include the context information of the terminal device and the switching configuration information determined by the target access network device.

[0104] Step 9: The target AMF entity forwards the request response message sent by the target access network device to a separate entity.

[0105] Step 10: After receiving the request response message, the individual entity forwards the request response message to the source AMF entity.

[0106] Step 11: After receiving the request response message, the source AMF entity forwards the request response message to the source access network device.

[0107] Step 12: After the source access network device receives the request response message, it confirms that the terminal device can switch from the source NPN network to the target NPN network. The source access network device can then send switching information to the terminal device, which is used to instruct the terminal device to switch from the source NPN network to the target cell of the target NPN network.

[0108] It can be seen from the technical solution of Example 1 that when a single entity is connected to multiple NPN networks at the same time, the technical solution of Example 1 can realize the movement of the terminal device from one NPN network among the multiple NPN networks to another NPN network, that is, it can realize the movement of the source NPN network to the target NPN network, and the service continuity of the terminal device can be achieved without the existence of any interface between the source NPN network and the target NPN network.

[0109] Example 2

[0110] The technical solution of Example 2 can be applied to scenarios where there is an interface between the source AMF entity and the target AMF entity. Figure 9 As shown, the specific steps of the technical solution of Example 2 are as follows:

[0111] Step 1: The source access network device sends measurement configuration information of the target NPN network to the terminal device.

[0112] Step 2: The terminal device performs cell measurement based on the measurement configuration information and reports the measurement results to the source access network device.

[0113] Step 3: The source access network device sends a request message to the source AMF entity.

[0114] Step 4: After receiving the request message, the source AMF entity determines the target AMF entity based on the target cell information and / or the first separate entity information, and then the source AMF entity sends a request message to the target AMF entity.

[0115] The request message may include context information of the terminal device and target cell information.

[0116] Step 5: The AMF entity establishes the AMF context.

[0117] Step 6: The target AMF entity determines the target access network device based on the received target cell information. Afterwards, the target AMF entity can forward the request message to the target access network device.

[0118] Step 7: The target access network device is ready to switch resources and returns confirmation information to the target AMF entity, that is, sends a request response message to the target AMF entity.

[0119] Step 8: The target AMF entity forwards the request response message sent by the target access network device to the source AMF entity.

[0120] Step 9: After receiving the request response message, the source AMF entity forwards the request response message to the source access network device.

[0121] Step 10: After receiving the request response message, the source access network device confirms that the terminal device can switch from the source NPN network to the target NPN network, and then the source access network device can send switching information to the terminal device.

[0122] It can be seen from the technical solution of Example 2 that when a single entity is connected to multiple NPN networks at the same time, the technical solution of Example 2 can realize the movement of the terminal device from one NPN network among the multiple NPN networks to another NPN network, that is, it can realize the movement from the source NPN network to the target NPN network, and the service continuity of the terminal can be achieved between the source NPN network and the target NPN network only in the scenario where an interface exists between the core network device.

[0123] Example 3

[0124] The technical solution of Example 3 can be applied to the scenario where there is an interface between the source access network device and the target access network device. Figure 10 As shown, the specific steps of the technical solution of Example 3 are as follows:

[0125] Step 1: The source access network device sends measurement configuration information of the target NPN network to the terminal device.

[0126] Step 2: The terminal device performs cell measurement based on the measurement configuration information and reports the measurement results to the source access network device.

[0127] Step 3: The source access network device determines whether to allow the terminal device to switch to the target NPN network. If the terminal device is allowed to switch from the source NPN network to the target NPN network, the source access network device may send a request message to the target access network device.

[0128] The request message may include context information of the terminal device and target cell information.

[0129] Step 4: The target access network device is ready to switch resources and returns confirmation information to the source access network device, that is, sends a request response message to the source access network device.

[0130] Before step 4, the target access network device may also determine whether the terminal device is allowed to switch from the source NPN network to the target NPN network. Specifically, the target access network device may obtain the second authorization information through the target AMF entity, where the second authorization information is used to indicate whether the terminal device is authorized to access the target NPN network, or whether the terminal device is allowed to switch to the target NPN network, or whether the terminal device is authorized to switch to the target NPN network in a supported separate entity service.

[0131] Step 5: After receiving the request response message, the source access network device confirms that the terminal device can switch from the source NPN network to the target NPN network, and then the source access network device can send switching information to the terminal device.

[0132] It can be seen from the technical solution of Example 3 that when a single entity is connected to multiple NPN networks at the same time, the technical solution of Example 3 can realize the dynamic movement of the terminal device from one NPN network among the multiple NPN networks to another NPN network, that is, it can realize the movement from the source NPN network to the target NPN network. In addition, there is an interface between the source NPN network and the target NPN network in the access network device, and the service continuity of the terminal device can be achieved in the scenario where the source NPN network and the target NPN network share a core network.

[0133] It should be understood that although Examples 1 to 3 are described separately above, this does not mean that Examples 1 to 3 are independent, and the descriptions of the various Examples can refer to each other. For example, the relevant description in Example 1 can also apply to Examples 2 and 3. For the sake of brevity, the present application will not further describe Examples 2 and 3.

[0134] It should also be understood that in the embodiments of the present application, "first", "second" and "third" are only used to distinguish different objects, but do not limit the scope of the embodiments of the present application.

[0135] In an embodiment of the present application, when a single entity is connected to multiple NPN networks at the same time, the source network device can effectively realize the movement of the terminal device from one NPN network to another NPN network among the multiple NPN networks by sending a request message for requesting to switch the connection between the terminal device and the source NPN network to the connection between the terminal device and the target NPN network, and receiving a request response message for instructing the terminal device to switch from the source NPN network to the target NPN network.

[0136] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0137] For example, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0138] For another example, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

[0139] It should be understood that in the various method embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0140] The above describes in detail the cell selection method according to the embodiment of the present application. Figures 11 to 14 , describing a communication device according to an embodiment of the present application, the technical features described in the method embodiment are applicable to the following device embodiments.

[0141] Figure 11 FIG. 6 shows a schematic block diagram of a network device 600 according to an embodiment of the present application. Figure 11 As shown, the network device 600 is a source network device, which includes a source access network device and / or a source core network device. The network device 600 includes:

[0142] The communication unit 610 is configured to send a request message, where the request message is used to request that the connection between the terminal device and the source network be switched to a connection between the terminal device and the target network.

[0143] The communication unit 610 is further configured to receive a request response message, where the request response message is configured to instruct the terminal device to switch from the source network to the target network.

[0144] The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

[0145] Optionally, in this embodiment of the present application, there is no interface between the source network and the target network, the network device 600 is the source core network device, and the network device 600 further includes a processing unit (not shown in the figure). The processing unit is configured to enable the source core network device to determine the separate entity based on the target cell information and / or the first separate entity information supported by the target cell;

[0146] The communication unit 610 is specifically used to: forward the request message to the separate entity, the request message including the context information of the terminal device and the target cell information; receive the request response message sent by the separate entity, the request response message including the context information of the terminal device.

[0147] Optionally, in an embodiment of the present application, the processing unit is specifically used to: determine the target core network device based on the target cell information and / or the first separate entity information.

[0148] Optionally, in an embodiment of the present application, the request message includes information for indicating the target core network device.

[0149] Optionally, in the embodiment of the present application, there is an interface between the source core network device and the target core network device in the target network, the network device 600 is the source core network device, and the network device 600 further includes: a processing unit, configured to determine the target core network device according to the target cell information and / or the first separate entity information supported by the target cell;

[0150] The communication unit 610 is specifically used to: send a request message to the target core network device, the request message including the context information of the terminal device and the target cell information; receive a request response message sent by the target core network device, the request response message including the context information of the terminal device.

[0151] Optionally, in an embodiment of the present application, the communication unit 610 is also used to: receive the request message sent by the source access network device, the request message including the context information of the terminal device and the target cell information; and send the request response message to the source access network device.

[0152] Optionally, in this embodiment of the present application, the request message also includes the first separate entity information.

[0153] Optionally, in this embodiment of the present application, the processing unit is further configured to: obtain the first individual entity information through a non-access stratum NAS message;

[0154] The communication unit 610 is further configured to send the first independent entity information to the source access network device.

[0155] Optionally, in an embodiment of the present application, the processing unit is further used to: determine whether the terminal device is allowed to switch from the source network to the target network.

[0156] Optionally, in an embodiment of the present application, the request message also includes identification information of the source network and / or identification information of the terminal device.

[0157] Optionally, in an embodiment of the present application, the network device 600 is the source access network device, and the communication unit 610 is specifically used to: send the request message to the source core network device, the request message including the context information of the terminal device and the target cell information; and receive the request response message sent by the source core network device.

[0158] Optionally, in an embodiment of the present application, there is no interface between the source network and the target network, or there is an interface between the source core network device and the target core network device in the target network.

[0159] Optionally, in the embodiment of the present application, an interface is provided between the source access network device and the target access network device of the target network, the network device 600 is the source access network device, and the network device 600 further includes: a processing unit, configured to determine whether to allow the terminal device to switch from the source network to the target network;

[0160] The communication unit 610 is specifically used to: if the terminal device is allowed to switch from the source network to the target network, send the request message to the target access network device, the request message including the context information of the terminal device and the target cell information; receive the request response message sent by the target access network device.

[0161] Optionally, in an embodiment of the present application, the communication unit 610 is also used to: send measurement configuration information to the terminal device, the measurement configuration information including the frequency information of the target network and / or the cell information of the target network, and also including the separate entity information supported by the target network; receive the measurement report reported by the terminal device, the measurement report including the target cell information.

[0162] Optionally, in this embodiment of the present application, the measurement report also includes first separate entity information.

[0163] Optionally, in an embodiment of the present application, the communication unit 610 is further used to: receive the first separate entity information sent by the terminal device during the radio resource control RRC connection establishment process; or receive the first separate entity information sent by the source core network device.

[0164] Optionally, in the embodiment of the present application, the network device 600 further includes: a processing unit, configured to obtain, through the source core network device, first authorization information, where the first authorization information is used to indicate whether the terminal device is authorized to access the target network;

[0165] The processing unit is further configured to determine, based on the first authorization information, whether the terminal device is allowed to switch from the source network to the target network.

[0166] Optionally, in an embodiment of the present application, the communication unit 610 is further used to: send first information to the terminal device, where the first information is used to instruct the terminal device to switch from the source network to the target cell of the target network.

[0167] It should be understood that the network device 600 may correspond to the network device in the method 200 and may implement corresponding operations of the network device in the method 200. For the sake of brevity, details will not be given here.

[0168] Figure 12 FIG. 7 shows a schematic block diagram of a network device 700 according to an embodiment of the present application. Figure 12 As shown, the network device 700 is a target network device. The target network includes a target access network device and / or a target core network device. The network device 700 includes:

[0169] The communication unit 710 is configured to receive a request message, where the switching request message is used to request switching a connection between a terminal device and a source network to a connection between the terminal device and the target network.

[0170] The communication unit 710 is further configured to send a request response message, where the request response message is configured to instruct the terminal device to switch from the source network to the target network.

[0171] The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

[0172] Optionally, in an embodiment of the present application, there is no interface between the source network and the target network, the network device 700 is the target core network device, and the communication unit 710 is specifically used to: receive the request message sent by the separate entity, the request message including the context information of the terminal device, the target cell information and the identification information of the terminal device; send the request response message to the separate entity, the request response message including the context information of the terminal device.

[0173] Optionally, in an embodiment of the present application, there is an interface between the source core network device in the source network and the target core network device, the network device 700 is the target core network device, and the communication unit 710 is specifically used to: receive the request message sent by the source core network device, the request message including the context information of the terminal device, the target cell information and the identification information of the terminal device; send the request response message to the source core network device, the request response message including the context information of the terminal device.

[0174] Optionally, in the embodiment of the present application, the network device 700 further includes a processing unit (not shown in the figure). The processing unit is configured to determine a target access network device based on the target cell information;

[0175] The communication unit 710 is further configured to: send the request message to the target access network device; and receive the request response message sent by the target access network device.

[0176] Optionally, in an embodiment of the present application, the network device 700 is the target access network device, and the communication unit 710 is specifically used to: receive the request message sent by the target core network device, the request message including the context information of the terminal device and the identification information of the terminal device; and send the request response message to the target core network device, the request response message including the context information of the terminal device.

[0177] Optionally, in an embodiment of the present application, there is no interface between the source network and the target network, or there is an interface between the source core network device and the target core network device in the target network.

[0178] Optionally, in an embodiment of the present application, there is an interface between the source access network device in the source network and the target access network device, the network device 700 is the target access network device, and the communication unit 710 is specifically used to: receive a request message sent by the source access network device, the request message including the context information of the terminal device and the identification information of the terminal device; and send the request response message to the source access network device, the request response message including the context information of the terminal device.

[0179] Optionally, in an embodiment of the present application, the network device 700 further includes: a processing unit, configured to obtain second authorization information through the target core network device, wherein the second authorization information is used to indicate whether the terminal device is authorized to access the target network.

[0180] The processing unit is further configured to determine, based on the second authorization information, whether the terminal device is allowed to switch to the target network.

[0181] It should be understood that the network device 700 may correspond to the network device in the method 300 and may implement corresponding operations of the network device in the method 300. For the sake of brevity, details will not be given here.

[0182] Figure 13 FIG. 8 is a schematic block diagram of a network device 800 according to an embodiment of the present application. Figure 13 As shown, the network device 800 is a separate entity, and the network device 800 includes:

[0183] The communication unit 810 is used to receive a request message sent by a source core network device in a source network, where the request message is used to request to switch the connection between the terminal device and the source network to the connection between the terminal device and the target network.

[0184] The communication unit 810 is further configured to send a request response message to the source core network device, where the request response message is configured to instruct the terminal device to switch from the source network to the target network.

[0185] The source network and the target network are non-public networks, and the source network and the target network are simultaneously connected to the separate entity.

[0186] Optionally, in an embodiment of the present application, the request message and the request response message respectively include the following information: context information of the terminal device, target cell information and identification information of the terminal device.

[0187] Optionally, in an embodiment of the present application, the request message includes information for indicating the target core network device.

[0188] Optionally, in this embodiment of the present application, the network device 800 further includes a processing unit (not shown in the figure). The processing unit is configured to determine the target core network device according to the target cell information if the request message does not include information indicating the target core network device in the target network.

[0189] The communication unit 810 is further configured to: forward the request message to the target core network device; and receive the request response message forwarded by the target core network device.

[0190] Optionally, in an embodiment of the present application, the network device 800 further includes: a processing unit, used to obtain third authorization information through the source core network device, the third authorization information being used to indicate whether the terminal device is authorized to access the target network; and based on the third authorization information, determining whether the terminal device is allowed to switch to the target network.

[0191] It should be understood that the network device 800 may correspond to the network device in the method 400 and may implement corresponding operations of the network device in the method 400. For the sake of brevity, details will not be given here.

[0192] Figure 14 FIG. 1 shows a schematic block diagram of a terminal device 900 according to an embodiment of the present application. Figure 14 As shown, the terminal device 900 includes:

[0193] The communication unit 910 is used to receive first information sent by a source access network device in a source network, where the first information is used to instruct the terminal device to switch from the source network to a target cell in a target network.

[0194] The processing unit 920 is configured to switch from the source network to the target cell based on the first information.

[0195] The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

[0196] Optionally, in an embodiment of the present application, the communication unit 910 is also used to: receive measurement configuration information sent by the source access network device, the measurement configuration information including the frequency information of the target network and / or the cell information of the target network, and also including separate entity information supported by the target network; report a measurement report to the source access network device, the measurement report including target cell information.

[0197] Optionally, in this embodiment of the present application, the measurement report also includes first separate entity information.

[0198] Optionally, in an embodiment of the present application, the communication unit 910 is further used to: send first separate entity information to the source access network device during the radio resource control RRC connection establishment process.

[0199] It should be understood that the terminal device 900 may correspond to the network device in the method 500 and may implement the corresponding operations of the terminal device in the method 500. For the sake of brevity, details will not be given here.

[0200] Figure 15 This is a schematic structural diagram of a communication device 1000 provided in an embodiment of the present application. Figure 15 The communication device 1000 shown includes a processor 1010, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0201] Alternatively, as Figure 15As shown, the communication device 1000 may further include a memory 1020. The processor 1010 may call and execute a computer program from the memory 1020 to implement the method in the embodiment of the present application.

[0202] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0203] Alternatively, as Figure 15 As shown, the communication device 1000 may further include a transceiver 1030 , and the processor 1010 may control the transceiver 1030 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0204] The transceiver 1030 may include a transmitter and a receiver. The transceiver 1030 may further include an antenna, and the number of antennas may be one or more.

[0205] Optionally, the communication device 1000 may specifically be a network device in an embodiment of the present application, and the communication device 1000 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0206] Optionally, the communication device 1000 may specifically be a terminal device of an embodiment of the present application, and the communication device 1000 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0207] Figure 16 It is a schematic structural diagram of the device of an embodiment of the present application. Figure 16 The device 1100 shown includes a processor 1110, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0208] Alternatively, as Figure 16 As shown, the apparatus 1100 may further include a memory 1120. The processor 1110 may call and execute a computer program from the memory 1120 to implement the method in the embodiment of the present application.

[0209] The memory 1120 may be a separate device independent of the processor 1110 , or may be integrated into the processor 1110 .

[0210] Optionally, the apparatus 1100 may further include an input interface 1130. The processor 1110 may control the input interface 1130 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0211] Optionally, the apparatus 1100 may further include an output interface 1140. The processor 1110 may control the output interface 1140 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0212] Optionally, the apparatus may be applied to a terminal device in an embodiment of the present application, and the apparatus may implement the corresponding processes implemented by the terminal device in each method in an embodiment of the present application. For the sake of brevity, details will not be given here.

[0213] Optionally, the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0214] Optionally, the device 1100 may be a chip. It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0215] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0216] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, 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 random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0217] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0218] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0219] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0220] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0221] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0222] Optionally, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0223] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0224] The embodiment of the present application also provides a computer program.

[0225] Optionally, the computer program can be applied to the terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0226] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0227] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0228] 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.

[0229] 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 the units is merely 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 through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0230] The units described as separate components may or may not be physically separate, and the 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.

[0231] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0232] If the functions are implemented in the form of software functional units and sold or used as independent products, they 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 the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a 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.

[0233] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: The method is applied to a source network, the source network including a source access network device and / or a source core network device, and the method includes: The source network device sends a request message, wherein the request message is used to request to switch the connection between the terminal device and the source network to the connection between the terminal device and the target network; The source network device receives a request response message, where the request response message is used to instruct the terminal device to switch from the source network to the target network; The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

2. The method according to claim 1, characterized in that The method further comprises: The source core network device determines the target core network device according to the target cell information and / or the first independent entity information.

3. The method according to claim 2, characterized in that An interface is provided between the source core network device and a target core network device in the target network, the source network device is the source core network device, and the sending of the request message includes: The source core network device sends a request message to the target core network device, where the request message includes the context information of the terminal device and the target cell information; The receiving request response message includes: The source core network device receives the request response message sent by the target core network device, where the request response message includes the context information of the terminal device.

4. The method according to claim 1, wherein The source network device is the source access network device, and the sending of the request message includes: The source access network device sends the request message to the source core network device, where the request message includes the context information of the terminal device and the target cell information; The receiving request response message includes: The source access network device receives the request response message sent by the source core network device, where the request response message includes the context information of the terminal device.

5. The method according to claim 1, wherein An interface is provided between the source access network device and the target access network device of the target network, the source network device is the source access network device, and the sending of the request message includes: The source access network device determines whether to allow the terminal device to switch from the source network to the target network; If the terminal device is allowed to switch from the source network to the target network, the source access network device sends the request message to the target access network device, where the request message includes the context information of the terminal device and the target cell information; The receiving request response message includes: The source access network device receives the request response message sent by the target access network device, where the request response message includes the context information of the terminal device.

6. The method according to claim 4 or 5, characterized in that The method further comprises: The source access network device sends measurement configuration information to the terminal device, where the measurement configuration information includes frequency information of the target network and / or cell information of the target network, and also includes separate entity information supported by the target network; The source access network device receives the measurement report reported by the terminal device, where the measurement report includes the target cell information.

7. The method according to claim 4 or 5, characterized in that The method further comprises: The source access network device obtains first authorization information through the source core network device, where the first authorization information is used to indicate whether the terminal device is authorized to access the target network; The source access network device determines whether to allow the terminal device to switch from the source network to the target network based on the first authorization information.

8. The method according to claim 4 or 5, characterized in that The method further comprises: The source access network device sends first information to the terminal device, where the first information is used to instruct the terminal device to switch from the source network to the target cell of the target network.

9. A wireless communication method, characterized in that: The method comprises: The terminal device receives first information sent by a source access network device in a source network, where the first information is used to instruct the terminal device to switch from the source network to a target cell in a target network; The terminal device switches from the source network to the target cell based on the first information; The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

10. The method according to claim 9, characterized in that The method further comprises: The terminal device receives measurement configuration information sent by the source access network device, where the measurement configuration information includes frequency information of the target network and / or cell information of the target network, and also includes separate entity information supported by the target network; The terminal device reports a measurement report to the source access network device, where the measurement report includes target cell information.

11. A network device, characterized in that: The network device is a source network device, the source network device includes a source access network device and / or a source core network device, and the network device includes: a communication unit, configured to send a request message, wherein the request message is used to request switching of a connection between a terminal device and the source network to a connection between the terminal device and a target network; The communication unit is further configured to receive a request response message, wherein the request response message is used to instruct the terminal device to switch from the source network to the target network; The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

12. The network device according to claim 11, wherein: The network device further includes: The processing unit is configured to determine a target core network device based on the target cell information and / or the first separate entity information.

13. The network device according to claim 12, wherein: There is an interface between the source core network device and the target core network device in the target network, and the network device is the source core network device; The communication unit is specifically used for: Sending a request message to the target core network device, where the request message includes the context information of the terminal device and the target cell information; Receive a request response message sent by the target core network device, where the request response message includes context information of the terminal device.

14. The network device according to claim 11, wherein: The network device is the source access network device, and the communication unit is specifically configured to: Sending the request message to the source core network device, where the request message includes the context information of the terminal device and the target cell information; Receive the request response message sent by the source core network device, where the request response message includes the context information of the terminal device.

15. The network device according to claim 11, wherein: There is an interface between the source access network device and the target access network device of the target network, the network device is the source access network device, and the network device further includes: a processing unit, configured to determine whether to allow the terminal device to switch from the source network to the target network; The communication unit is specifically used for: If the terminal device is allowed to switch from the source network to the target network, send the request message to the target access network device, where the request message includes the context information of the terminal device and the target cell information; Receive the request response message sent by the target access network device, where the request response message includes the context information of the terminal device.

16. The network device according to claim 14 or 15, characterized in that: The communication unit is further configured to: Sending measurement configuration information to the terminal device, where the measurement configuration information includes frequency information of the target network and / or cell information of the target network, and also includes separate entity information supported by the target network; Receive a measurement report reported by the terminal device, where the measurement report includes the target cell information.

17. The network device according to claim 14 or 15, characterized in that: The network device further includes: A processing unit, configured to obtain, through the source core network device, first authorization information, where the first authorization information is used to indicate whether the terminal device is authorized to access the target network; The processing unit is further configured to determine, based on the first authorization information, whether the terminal device is allowed to switch from the source network to the target network.

18. The network device according to claim 14 or 15, characterized in that: The communication unit is further configured to: Sending first information to the terminal device, where the first information is used to instruct the terminal device to switch from the source network to the target cell of the target network.

19. A terminal device, characterized in that: include: A communication unit, configured to receive first information sent by a source access network device in a source network, where the first information is used to instruct the terminal device to switch from the source network to a target cell in a target network; a processing unit, configured to switch from the source network to the target cell based on the first information; The source network and the target network are non-public networks, and the source network and the target network are connected to separate entities at the same time.

20. The terminal device according to claim 19, characterized in that The communication unit is further configured to: receiving measurement configuration information sent by the source access network device, where the measurement configuration information includes frequency information of the target network and / or cell information of the target network, and also includes separate entity information supported by the target network; Report a measurement report to the source access network device, where the measurement report includes target cell information.

21. A network device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 8.

22. A terminal device, characterized in that: include: A processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method according to any one of claims 9 to 10.

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