A network switching system, method, device, electronic device and storage medium

Abstract

The present application provides a network switching system, method, device, electronic device and storage medium, including: the target base station sends the user information of the terminal device and the base station information of the target base station to the public network server, and the target base station is a 5G base station with public network PLMN attributes and private network PLMN attributes; the public network server determines that the terminal device is within the coverage of the private network PLMN cell of the target base station based on the user information and base station information, and sends a switching instruction to the target base station; the target base station initiates a switching indication message to the terminal device when receiving the switching instruction; the terminal device responds to the switching indication message and feeds back a response message to the target base station; the target base station establishes a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell. In this way, this solution can realize the imperceptible switching of the terminal device in the 5G private network and the 5G public network.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a network switching system, method, device, electronic device and storage medium. Background Art

[0002] With the development of information technology, the application of 5G networks is becoming more and more popular. When the physical location of the terminal device is covered by multiple 5G network PLMN (Public Land Mobile Network) cells, the terminal device can switch between different PLMN cells based on the coverage quality of different PLMN cells.

[0003] In the prior art, a method for a terminal device to perform network switching includes: the terminal device reports MR (Measurement Report) information to a base station, wherein the MR information includes information of a target PLMN, and the target PLMN refers to information of a PLMN cell with the highest coverage quality searched by the terminal device; when the base station determines that the target PLMN meets the switching requirements, the base station returns a switching instruction to the terminal device, thereby realizing the switching of the terminal device between different PLMN cells.

[0004] In some scenarios, the 5G network includes 5G public network and 5G private network, which are used to provide different services respectively, and the terminal equipment needs to switch between the 5G public network and the 5G private network. However, the construction of 5G network is usually a public-private network sharing mode, and the public-private network PLMN cells are configured in the same sector and frequency to reduce construction costs. In other words, the 5G public network and the 5G private network are configured based on the same carrier frequency in the same sector. In this case, the coverage quality of the PLMN cells corresponding to the 5G public network and the 5G private network at the same physical point is the same.

[0005] The existing network switching method cannot realize switching between different PLMN cells with the same physical sector and the same frequency. Therefore, it is impossible to realize the seamless switching of terminal devices from the 5G public PLMN network to the 5G private PLMN network with the same sector and the same frequency, making it impossible for terminal devices to use the 5G private network services smoothly. Summary of the invention

[0006] In order to solve the above technical problems, the present application shows a network switching system, method, device, electronic device and storage medium, so as to at least solve the problem that the related technology cannot realize the switching between different PLMN cells in the same physical sector and the same frequency, and it is also impossible to realize the terminal device to switch from the 5G public network PLMN network to the 5G private network PLMN network with the same sector and the same frequency without perception, so that the terminal device cannot smoothly use the services of the 5G private network. The technical solution of the present disclosure is as follows:.

[0007] In a first aspect, the present application shows a network switching system, including:

[0008] A target base station is used to send user information of a terminal device and base station information of the target base station to a public network server, wherein the user information is sent by the terminal device when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station having public PLMN attributes and private PLMN attributes;

[0009] The public network server is used to send a switching instruction to the target base station when it is determined based on the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell with the same sector and frequency as any public network PLMN cell;

[0010] The target base station is further configured to initiate a switching indication message to the terminal device when receiving the switching instruction;

[0011] The terminal device is configured to feed back response information to the target base station in response to the switching indication information;

[0012] The target base station is also used to establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

[0013] Optionally, the terminal device is also used to send the user information to the target base station when redirecting or switching from a public PLMN cell of a 5G base station that only has public PLMN attributes to any public PLMN cell of the target base station.

[0014] Optionally, the public network server is specifically used to obtain the user private network PLMN information of the terminal device based on the user information; obtain the base station private network PLMN information of the target base station based on the base station information; and determine that the terminal device is within the coverage of the private network PLMN cell of the target base station when the user private network PLMN information matches the base station private network PLMN information.

[0015] Optionally, the public network server is specifically used to obtain the user private network PLMN information of the terminal device according to the user information through a unified data management function component; and to obtain the base station private network PLMN information of the target base station according to the base station information through an access and mobility management function component.

[0016] Optionally, the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching between a different PLMN cell in the same sector and frequency;

[0017] The target base station is also used to, after receiving the switching instruction, initiate switching indication information to the terminal device according to the target PLMN value when it is determined that the switching reason value of the switching instruction instructs the terminal device to perform forced switching of the same sector, same frequency and different PLMN cells.

[0018] According to a second aspect of an embodiment of the present disclosure, a network switching method is provided, which is applied to a target base station, including:

[0019] Sending user information of the terminal device and base station information of the target base station to a public network server, so that the public network server sends a switching instruction to the target base station when determining that the terminal device is within the coverage of the private network PLMN cell of the target base station, wherein the switching instruction is used to instruct the terminal device to switch to a target private network PLMN cell with the same sector and frequency as the currently resident public network PLMN cell, and the user information is sent by the terminal device when it resides in any public network PLMN cell of the target base station, and the target base station is a 5G base station with public network PLMN attributes and private network PLMN attributes;

[0020] In case of receiving the switching instruction, initiating switching indication information to the terminal device, so that the terminal device feeds back response information;

[0021] A connection is established between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

[0022] Optionally, the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching between a different PLMN cell in the same sector and frequency;

[0023] The initiating switching indication information to the terminal device when the switching instruction is received includes:

[0024] After receiving the switching instruction, when it is determined that the switching reason value of the switching instruction instructs the terminal device to perform forced switching of the same-sector, same-frequency and different-PLMN cells, a switching indication message is initiated to the terminal device according to the target PLMN value.

[0025] According to a third aspect of an embodiment of the present disclosure, a network switching method is provided, which is applied to a public network server, including:

[0026] Receive user information of a terminal device and base station information of the target base station sent by a target base station, wherein the user information is sent by the terminal device to the target base station when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station with public PLMN attributes and private PLMN attributes;

[0027] When it is determined, based on the user information and the base station information, that the terminal device is within the coverage of the private network PLMN cell of the target base station, a switching instruction is sent to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication message to the terminal device, and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

[0028] Optionally, when it is determined according to the user information and the base station information that the terminal device is within the coverage of a private network PLMN cell of the target base station, sending a handover instruction to the target base station includes:

[0029] According to the user information, obtaining the user private network PLMN information of the terminal device;

[0030] According to the base station information, obtaining the base station private network PLMN information of the target base station;

[0031] When the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and a switching instruction is sent to the target base station.

[0032] Optionally, acquiring the user private network PLMN information of the terminal device according to the user information includes:

[0033] Acquire the user private network PLMN information of the terminal device according to the user information through the unified data management function component;

[0034] The acquiring, according to the base station information, the base station private network PLMN information of the target base station includes:

[0035] The access and mobility management function component obtains the base station private network PLMN information of the target base station according to the base station information.

[0036] According to a fourth aspect of an embodiment of the present disclosure, a network switching device is provided, which is applied to a target base station, including:

[0037] A sending unit is configured to execute sending the user information of the terminal device and the base station information of the target base station to the public network server, so that the public network server sends a switching instruction to the target base station when it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell with the same sector and frequency as the currently resident public network PLMN cell, and the user information is sent by the terminal device when it resides in any public network PLMN cell of the target base station, and the target base station is a 5G base station with public network PLMN attributes and private network PLMN attributes;

[0038] a feedback unit configured to, upon receiving the switching instruction, initiate switching indication information to the terminal device, so that the terminal device feeds back response information;

[0039] The connection unit is configured to establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

[0040] Optional,

[0041] The switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching to a different PLMN cell in the same sector and frequency;

[0042] The feedback unit is configured to execute, after receiving the switching instruction, in a case where it is determined that the switching reason value of the switching instruction indicates that the terminal device performs a forced switching of the same-sector, same-frequency and different-PLMN cells, and initiate a switching indication message to the terminal device according to the target PLMN value.

[0043] According to a fifth aspect of an embodiment of the present disclosure, a network switching device is provided, which is applied to a public network server, including:

[0044] A receiving unit is configured to receive user information of a terminal device and base station information of the target base station sent by a target base station, wherein the user information is sent to the target base station by the terminal device when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station having public PLMN attributes and private PLMN attributes;

[0045] The sending unit is configured to execute, when it is determined based on the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, sending a switching instruction to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication message to the terminal device and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

[0046] Optionally, the issuing unit is specifically configured to execute:

[0047] According to the user information, obtaining the user private network PLMN information of the terminal device;

[0048] According to the base station information, obtaining the base station private network PLMN information of the target base station;

[0049] When the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and a switching instruction is sent to the target base station.

[0050] Optionally, the issuing unit is specifically configured to execute:

[0051] Through the unified data management function component, the user private network PLMN information of the terminal device is obtained according to the user information; through the access and mobility management function component, the base station private network PLMN information of the target base station is obtained according to the base station information.

[0052] According to a sixth aspect of an embodiment of the present disclosure, there is provided an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the network switching method as described in any one of the above items are implemented.

[0053] According to a seventh aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the above-mentioned network switching methods are implemented.

[0054] Compared with the prior art, this application has the following advantages:

[0055] The target base station sends the user information of the terminal device and the base station information of the target base station to the public network server. The user information is sent by the terminal device when it resides in any public PLMN cell of the target base station. The target base station is a 5G base station with public PLMN attributes and private PLMN attributes. When the public network server determines that the terminal device is within the coverage of the private PLMN cell of the target base station based on the user information and base station information, it sends a switching instruction to the target base station. The switching instruction is used to instruct the terminal device to switch to the target private PLMN cell with the same sector and frequency as any public PLMN cell. When the target base station receives the switching instruction, it initiates a switching indication message to the terminal device. The terminal device responds to the switching indication message and feeds back a response message to the target base station. The target base station establishes a connection between the terminal device and the private network server to enable the terminal device to switch to the target private PLMN cell.

[0056] In this way, this solution proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device between the 5G private network and the 5G public network, so that the terminal device can use the services of the 5G private network smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is an interactive schematic diagram of a network switching system of the present application;

[0058] Figure 2 It is a system architecture diagram of a network switching solution of the present application;

[0059] Figure 3 It is a logical schematic diagram of a network switching solution of the present application;

[0060] Figure 4 It is a flowchart of the steps of a network switching method of the present application;

[0061] Figure 5 It is a flowchart of the steps of a network switching method of the present application;

[0062] Figure 6 It is a structural block diagram of a network switching device of the present application;

[0063] Figure 7 It is a structural block diagram of a network switching device of the present application;

[0064] Figure 8 It is a schematic diagram of an electronic device of the present application. DETAILED DESCRIPTION

[0065] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0066] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0067] Reference Figure 1 , shows an interactive schematic diagram of a network switching system of the present application, the system includes a terminal device, a target base station, a public network server and a private network server. Specifically, the following steps may be included:

[0068] In step S11, the target base station sends the user information of the terminal device and the base station information of the target base station to the public network server. The user information is sent by the terminal device when it resides in any public PLMN cell of the target base station. The target base station is a 5G base station with public PLMN attributes and private PLMN attributes.

[0069] In some scenarios, 5G networks include 5G public networks and 5G private networks, which are used to provide different services respectively, and terminal devices need to switch between 5G public networks and 5G private networks. Among them, the construction of 5G networks is usually a public-private network sharing mode, and the public-private network PLMN cells are configured with the same sector and the same frequency. In other words, the 5G public network and the 5G private network are configured based on the same carrier frequency in the same sector. Therefore, the terminal devices need to switch between the PLMN cells with the same sector and the same frequency carrier to achieve the switching between the public network and the private network.

[0070] In this application, the target base station is a 5G base station with public PLMN attributes and private PLMN attributes, which can communicate with public and private servers at the same time. The target base station can also be called a gNodeB node, that is, a "public and private multi-PLMN-5G base station". The public server provides public network services to terminal devices through the target base station, which can be expressed as "public network 5GC". The private network server provides private network services to terminal devices through the target base station, which can be expressed as "private network 5GC". In addition, there are 5G base stations in the network that only have public PLMN attributes, which can be called public base stations. The public base stations are only connected to public servers.

[0071] In one implementation method, when the terminal device is redirected or switched from a public PLMN cell of a 5G base station that only has public PLMN attributes to any public PLMN cell of the target base station, the terminal device sends user information to the target base station.

[0072] That is to say, when a public-private dual PLMN user initiates a service-state handover or idle-state redirection in the public PLMN cell of the public base station and resides in the target base station, the target base station transparently transmits and reports the user and current resident cell information to the public network server. It can be understood that the public base station can only provide public network services, while the target base station can provide both public and private network services. Therefore, when the terminal device resides from the public base station to the target base station, the physical location of the terminal device is covered by the target base station, and the terminal device may use private network services. However, the private network service and public network service of the target base station are configured in the same sector and frequency, and it is difficult to switch based on the network coverage quality. Therefore, the target base station can send the user information of the terminal device and the base station information of the target base station to the public network server, and the public network server determines whether to execute the subsequent steps.

[0073] In step S12, when the public network server determines, based on user information and base station information, that the terminal device is within the coverage of the private network PLMN cell of the target base station, the public network server sends a switching instruction to the target base station. The switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell with the same sector and frequency as any public network PLMN cell.

[0074] In the present disclosure, each terminal device and target base station has its corresponding PLMN attribute. According to the different PLMN attributes, the terminal device can search for the network corresponding to its PLMN attribute and use the corresponding service, and the target base station can provide services for the network corresponding to its PLMN attribute. In this step, the public network server can determine whether the terminal device is within the coverage of the private network PLMN cell of the target base station based on the user information and the base station information. If the terminal device is within the coverage of the private network PLMN cell of the target base station, a switching instruction is sent to the target base station. On the contrary, if the terminal device is not within the coverage of the private network PLMN cell of the target base station, the terminal device cannot join the private network service provided by the target base station, and therefore, a switching instruction will not be sent to the target base station.

[0075] In one implementation, the public network server obtains the user private network PLMN information of the terminal device based on the user information; obtains the base station private network PLMN information of the target base station based on the base station information; and when the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station.

[0076] That is to say, when the user's private network PLMN belongs to the private network PLMN set in the target base station, the public network 5GC determines that the user with private network service has entered the coverage of the private network service, and prepares to send a PLMN switching instruction to the target base station requiring the private network user to switch to the target PLMN cell with the same sector and frequency.

[0077] Among them, the public network server obtains the user private network PLMN information of the terminal device according to the user information through the unified data management function component; and obtains the base station private network PLMN information of the target base station according to the base station information through the access and mobility management function component.

[0078] The unified data management function component is the UDM (Unified Data Management) component, which can determine whether it is a private network user; the access and mobility management function component is the AMF (access and mobility management function) component, which can determine whether it enters the target base station.

[0079] In step S13, upon receiving the switching instruction, the target base station initiates a switching indication message to the terminal device.

[0080] In this step, if the target base station receives a switching instruction, indicating that the terminal device is within the coverage of the private network PLMN cell of the target base station, then the target base station can initiate a switching indication message to the terminal device, instructing the terminal device to switch to the public-private network.

[0081] Among them, the switching instruction includes the target PLMN value and the switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform forced switching between the same sector, the same frequency and the different PLMN cell; after receiving the switching instruction, the target base station, when determining that the switching reason value of the switching instruction instructs the terminal device to perform forced switching between the same sector, the same frequency and the different PLMN cell, initiates a switching indication information to the terminal device according to the target PLMN value.

[0082] That is to say, the target base station needs to analyze the received handover instruction, and only initiate a handover instruction message to the terminal device when the handover reason value of the handover instruction indicates that the terminal device is performing a forced handover between cells of the same sector and the same frequency but different PLMNs. On the contrary, if the handover reason value indicates that the terminal device is performing a handover between cells of different sectors or different frequencies, then the terminal device may not perform a forced handover, but perform a handover based on the coverage quality of the public or private network. Therefore, the target base station may not initiate a handover instruction message to the terminal device.

[0083] For example, the public network server sends a PLMN switching instruction to the target base station to switch to the target PLMN cell of the same sector and frequency. The switching instruction content not only includes the following information: the target private network PLMN value to be switched to, and the switching reason value is "5GC initiated forced switching of different PLMN cells in the same sector and frequency". The target base station side is increased without relying on the coverage quality, but is only determined by the forced switching strategy. The forced switching strategy is "5GC initiated forced switching strategy of different PLMN cells in the same sector and frequency". The requirement is: the target base station receives the PLMN switching instruction sent by the public network server, determines that the switching reason is "5GC initiated forced switching of different PLMN cells in the same sector and frequency", skips the coverage quality judgment condition, and directly triggers the "5GC initiated forced switching strategy of different PLMN cells in the same sector and frequency".

[0084] In step S14, the terminal device feeds back response information to the target base station in response to the switching indication information.

[0085] In this step, after receiving the switching indication information, the terminal device indicates that its current physical location is within the private network coverage of the target base station and the terminal device can use the private network service of the target base station. Therefore, the terminal device can respond to the switching indication information and feedback response information to the target base station, thereby realizing the switching from the public network to the private network.

[0086] In step S15, the target base station establishes a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

[0087] In this step, after receiving the response information fed back by the terminal device, the target base station can establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell. Among them, the signaling information refers to the existing cross-PLMN switching signaling, which minimizes the air interface protocol changes of the public network server, private network server, target base station and terminal device.

[0088] In this way, the terminal device can also switch between the public PLMN cell and the private PLMN cell in the same sector and frequency. Moreover, the switching process is implemented by the public network server, target base station and terminal device, which is imperceptible to the user, thus greatly improving the timeliness and accuracy of private network access.

[0089] like Figure 2The figure shows the system architecture of the present solution. The present invention adds a "multi-PLMN identification function" on the public network server side. According to the flow information reported by the user, it can identify the private network user entering the base station range of the corresponding private network PLMN attribute; according to the attribute of the private network user, issue an instruction to switch to the specified target PLMN. In the target base station, i.e., the gNodeB node, add a "5GC-initiated forced switching strategy for different PLMN cells with the same sector and frequency". According to the PLMN switching instruction issued by the public network server, it does not depend on the coverage condition and directly calls the "5GC-initiated forced switching strategy for different PLMN cells with the same sector and frequency". According to the forced switching instruction initiated by the public network server, the switching process between different PLMN cells with the same sector and frequency can be initiated to the terminal device. The purpose of the present invention is to enable the public network server to initiate forced switching of different PLMN cells with the same sector and frequency in the 5G network without relying on the coverage quality requirement.

[0090] like Figure 3 The figure shows the logic diagram of this solution. The terminal device sends the base station information with user information and target base station to the public network server through the target base station; the public network server determines whether to trigger the private network PLMN switching according to the user information and base station information; if the public network server sends the same sector, same frequency, different PLMN cell switching instruction to the target base station, the target base station triggers the "same sector, same frequency, different PLMN cell switching strategy initiated by 5GC" and initiates the same sector, same frequency, different PLMN cell switching instruction to the user terminal; the terminal device feeds back the same sector, same frequency, different PLMN cell switching response to the target base station and connects to the private network server through the target base station.

[0091] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0092] Reference Figure 4 , shows a flowchart of the steps of a network switching method of the present application, which is applied to a target base station and may specifically include the following steps:

[0093] In step S21, the user information of the terminal device and the base station information of the target base station are sent to the public network server, so that the public network server sends a switching instruction to the target base station when it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station.

[0094] Among them, the switching instruction is used to instruct the terminal device to switch to the target private PLMN cell with the same sector and frequency as the currently located public PLMN cell, and the user information is sent by the terminal device when it resides in any public PLMN cell of the target base station. The target base station is a 5G base station with public PLMN attributes and private PLMN attributes.

[0095] In step S22, when the switching instruction is received, a switching indication message is sent to the terminal device, so that the terminal device feeds back response information.

[0096] In step S23, a connection is established between the terminal device and a private network server to enable the terminal device to switch to the target private network PLMN cell.

[0097] In one implementation, the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching between a different PLMN cell in the same sector and frequency;

[0098] The initiating switching indication information to the terminal device when the switching instruction is received includes:

[0099] After receiving the switching instruction, when it is determined that the switching reason value of the switching instruction instructs the terminal device to perform forced switching of the same-sector, same-frequency and different-PLMN cells, a switching indication message is initiated to the terminal device according to the target PLMN value.

[0100] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0101] Reference Figure 5 , shows a flowchart of the steps of a network switching method of the present application, which is applied to a public network server and may specifically include the following steps:

[0102] In step S31, user information of the terminal device and base station information of the target base station are received from the target base station. The user information is sent to the target base station by the terminal device when the terminal device resides in any public PLMN cell of the target base station. The target base station is a 5G base station with public PLMN attributes and private PLMN attributes.

[0103] In step S32, when it is determined based on the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, a switching instruction is sent to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication message to the terminal device and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

[0104] In one implementation, when it is determined according to the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, sending a handover instruction to the target base station includes:

[0105] According to the user information, obtaining the user private network PLMN information of the terminal device;

[0106] According to the base station information, obtaining the base station private network PLMN information of the target base station;

[0107] When the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and a switching instruction is sent to the target base station.

[0108] In one implementation, acquiring the user private network PLMN information of the terminal device according to the user information includes:

[0109] Acquire the user private network PLMN information of the terminal device according to the user information through the unified data management function component;

[0110] The acquiring, according to the base station information, the base station private network PLMN information of the target base station includes:

[0111] The access and mobility management function component obtains the base station private network PLMN information of the target base station according to the base station information.

[0112] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0113] It should be noted that, for the method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions involved are not necessarily required by the present application.

[0114] Reference Figure 6 , shows a structural block diagram of a network switching device of the present application, which is applied to a target base station. The device may specifically include the following modules:

[0115] The sending unit 401 is configured to send the user information of the terminal device and the base station information of the target base station to the public network server, so that the public network server sends a switching instruction to the target base station when it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station.

[0116] Among them, the switching instruction is used to instruct the terminal device to switch to the target private PLMN cell with the same sector and frequency as the currently located public PLMN cell, and the user information is sent by the terminal device when it resides in any public PLMN cell of the target base station. The target base station is a 5G base station with public PLMN attributes and private PLMN attributes.

[0117] The feedback unit 402 is configured to, upon receiving the switching instruction, initiate switching indication information to the terminal device, so that the terminal device feeds back response information;

[0118] The connection unit 403 is configured to establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

[0119] In one implementation, the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching between a different PLMN cell in the same sector and frequency;

[0120] The feedback unit 402 is configured to execute, after receiving the switching instruction, in the case where it is determined that the switching reason value of the switching instruction indicates that the terminal device performs a forced switching of the same-sector, same-frequency and different-PLMN cells, and initiate a switching indication message to the terminal device according to the target PLMN value.

[0121] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0122] Reference Figure 7 , shows a structural block diagram of a network switching device of the present application, which is applied to a public network server. The device may specifically include the following modules:

[0123] The receiving unit 501 is configured to receive user information of the terminal device and base station information of the target base station sent by the target base station, wherein the user information is sent to the target base station by the terminal device when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station with public PLMN attributes and private PLMN attributes;

[0124] The sending unit 502 is configured to execute, when it is determined based on the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, sending a switching instruction to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication message to the terminal device, and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

[0125] In one implementation, the issuing unit 502 is specifically configured to execute:

[0126] According to the user information, obtaining the user private network PLMN information of the terminal device;

[0127] According to the base station information, obtaining the base station private network PLMN information of the target base station;

[0128] When the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and a switching instruction is sent to the target base station.

[0129] In one implementation, the issuing unit 502 is specifically configured to execute:

[0130] Through the unified data management function component, the user private network PLMN information of the terminal device is obtained according to the user information; through the access and mobility management function component, the base station private network PLMN information of the target base station is obtained according to the base station information.

[0131] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0132] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0133] Figure 8 It is a block diagram of an electronic device according to an exemplary embodiment.

[0134] In an exemplary embodiment, a computer-readable storage medium including instructions is also provided, such as a memory including instructions, and the above instructions can be executed by a processor of an electronic device to complete the above method. Optionally, the computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, an optical audio playback device, etc.

[0135] In an exemplary embodiment, a computer program product is also provided. When the computer program product is executed on a computer, the computer implements the above-mentioned network switching method.

[0136] From the above, it can be seen that the technical solution provided by the embodiments of the present disclosure proposes a method for switching between different PLMN cells in the same sector and frequency. The public network server can issue a switching instruction when it determines that the terminal device is within the coverage range of the private network PLMN cell of the target base station. The target base station does not need to rely on the coverage quality requirements. In response to the switching instruction, the terminal device can switch to the target private network PLMN cell with the same sector and frequency as the public network PLMN cell where it is currently located, thereby realizing seamless switching of the terminal device in the 5G private network and the 5G public network, so that the terminal device can smoothly use the services of the 5G private network.

[0137] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0138] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, devices, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0139] The present application is described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks 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 terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0140] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0141] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0142] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0143] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0144] The above is a detailed introduction to a network switching method, device, electronic device and storage medium provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A network switching system, characterized in that: include: A target base station is used to send user information of a terminal device and base station information of the target base station to a public network server, wherein the user information is sent by the terminal device when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station having public PLMN attributes and private PLMN attributes; The public network server is used to send a switching instruction to the target base station when it is determined based on the user information and the base station information that the terminal device is within the coverage of the private network PLMN cell of the target base station, the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell with the same sector and the same frequency as any public network PLMN cell, the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell, and the switching reason value instructs the terminal device to perform a forced switching to a different PLMN cell with the same sector and the same frequency; The target base station is further configured to, after receiving the handover instruction, initiate handover instruction information to the terminal device according to the target PLMN value when determining that the handover reason value of the handover instruction instructs the terminal device to perform forced handover of a same-sector, same-frequency, and different-PLMN cell; The terminal device is used to feed back response information to the target base station in response to the switching indication information; The target base station is also used to establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

2. The system according to claim 1, characterized in that The terminal device is also used to send the user information to the target base station when redirecting or switching from a public PLMN cell of a 5G base station that only has public PLMN attributes to any public PLMN cell of the target base station.

3. The system according to claim 1, characterized in that The public network server is specifically used to obtain the user private network PLMN information of the terminal device according to the user information; and obtain the base station private network PLMN information of the target base station according to the base station information; When the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station.

4. The system according to claim 3, characterized in that The public network server is specifically used to obtain the user private network PLMN information of the terminal device according to the user information through the unified data management function component; and to obtain the base station private network PLMN information of the target base station according to the base station information through the access and mobility management function component.

5. A network switching method, characterized in that: Applied to the target base station, including: Sending user information of the terminal device and base station information of the target base station to a public network server, so that the public network server sends a switching instruction to the target base station when determining that the terminal device is within the coverage of the private network PLMN cell of the target base station, wherein the switching instruction is used to instruct the terminal device to switch to a target private network PLMN cell with the same sector and frequency as the currently resident public network PLMN cell, wherein the user information is sent by the terminal device when it resides in any public network PLMN cell of the target base station, wherein the target base station is a 5G base station with public network PLMN attributes and private network PLMN attributes, and wherein the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell; After receiving the handover instruction, when it is determined that the handover reason value of the handover instruction indicates that the terminal device performs a forced handover of a same-sector, same-frequency, and different-PLMN cell, a handover instruction message is sent to the terminal device according to the target PLMN value, so that the terminal device feeds back a response message; A connection is established between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

6. A network switching method, characterized in that: Applicable to public network servers, including: Receive user information of a terminal device and base station information of the target base station sent by a target base station, wherein the user information is sent by the terminal device to the target base station when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station with public PLMN attributes and private PLMN attributes; Acquire the user private network PLMN information of the terminal device according to the user information through the unified data management function component; Acquiring, through the access and mobility management function component, the base station private network PLMN information of the target base station according to the base station information; In the case that the user private network PLMN information matches the base station private network PLMN information, it is determined that the terminal device is within the coverage of the private network PLMN cell of the target base station, and a switching instruction is sent to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication message to the terminal device, and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

7. A network switching device, characterized in that: Applied to the target base station, including: A sending unit is configured to execute sending the user information of the terminal device and the base station information of the target base station to the public network server, so that the public network server sends a switching instruction to the target base station when determining that the terminal device is within the coverage of the private network PLMN cell of the target base station, the switching instruction is used to instruct the terminal device to switch to the target private network PLMN cell with the same sector and frequency as the currently resident public network PLMN cell, the user information is sent by the terminal device when it resides in any public network PLMN cell of the target base station, the target base station is a 5G base station with public network PLMN attributes and private network PLMN attributes, and the switching instruction includes a target PLMN value and a switching reason value corresponding to the target private network PLMN cell; A feedback unit is configured to execute, after receiving the handover instruction, in the case where it is determined that the handover reason value of the handover instruction indicates that the terminal device performs a forced handover of a same-sector, same-frequency, different-PLMN cell, and initiate a handover indication message to the terminal device according to the target PLMN value, so that the terminal device feeds back a response message; The connection unit is configured to establish a connection between the terminal device and the private network server to enable the terminal device to switch to the target private network PLMN cell.

8. A network switching device, characterized in that: Applicable to public network servers, including: A receiving unit is configured to receive user information of a terminal device and base station information of the target base station sent by a target base station, wherein the user information is sent to the target base station by the terminal device when the terminal device resides in any public PLMN cell of the target base station, and the target base station is a 5G base station having public PLMN attributes and private PLMN attributes; The sending unit is configured to execute, through a unified data management function component, obtaining the user private network PLMN information of the terminal device according to the user information; through an access and mobility management function component, obtaining the base station private network PLMN information of the target base station according to the base station information; when the user private network PLMN information matches the base station private network PLMN information, determining that the terminal device is within the coverage of the private network PLMN cell of the target base station, and sending a switching instruction to the target base station, wherein the switching instruction is used to instruct the terminal device to switch to a target private network PLMN cell in the same sector and frequency as any public network PLMN cell, so that the target base station initiates a switching indication information to the terminal device, and enables the target base station to establish a connection between the terminal device and a private network server, so as to enable the terminal device to switch to the target private network PLMN cell.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the network switching method according to any one of claims 5 or 6 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the network switching method according to any one of claims 5 or 6 are implemented.

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