Terminal connection switching method and device, equipment, storage medium and product

Abstract

The invention discloses a terminal connection switching method and device, equipment, a storage medium and a product, and relates to the technical field of wireless, and the method comprises the steps: obtaining reconfiguration information when the terminal is in a connection state with a current cell based on a target mode, and the reconfiguration information comprises a new field standard; obtaining a support function measurement result of the adjacent cell according to the target mode based on the newly added field standard; when the support function measurement result meets the cell switching requirement, screening each adjacent cell according to the support function measurement result to obtain a target cell; according to the method, when the newly added field of the reconfiguration information is used for detecting whether the neighbor cell supports the distribution reducing function or not, field feedback is carried out according to factors such as network quality, a terminal state and the supporting condition of the distribution reducing function of the neighbor cell; and after field feedback, an adjacent cell with the best network quality is screened as a target cell for terminal connection switching, so that continuous and stable operation of the reduced distribution terminal in a network environment is ensured.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to terminal connection switching methods, devices, equipment, storage media and products. Background Art

[0002] As a global mobile communications standardization organization, 3GPP is responsible for formulating standards for mobile communications technology. Over time, the organization has continuously introduced new versions of standards, among which R15, R16 and R17 standards were frozen in 2018, 2020 and 2022 respectively.

[0003] In the 3GPP R17 standard, a new technology 5G RedCap (Reduced Capability, referred to as 5G simplified version) was introduced. This is a simplified version of 5G designed to reduce costs and power consumption. RedCap terminal, also known as lightweight 5G NR (NR-Light) terminal, represents a terminal device with reduced performance. This terminal simplifies the device structure by reducing certain functions, such as reducing antenna performance, reducing system bandwidth, and reducing peak rate. The purpose of this is to reduce the cost, size and power consumption of the terminal. Simply put, RedCap technology makes 5G terminals lighter, more economical and energy-saving.

[0004] This solution aims to explore the problems encountered by RedCap terminals during the switching process and their solutions. Currently, most 5G base stations support R15 or R16 protocol versions, or base stations support R17 protocol version, but the base stations themselves do not support the Redcap function. These versions of base stations do not support direct access of RedCap terminals. To solve this problem, RedCap multi-mode terminals need to support compatibility with 4G (LTE) networks. In this way, when the 5G network is unavailable, the RedCap terminal can fall back to the 4G network, thereby ensuring business continuity and user experience. Summary of the invention

[0005] The main purpose of this application is to provide a terminal connection switching method, device, equipment, storage medium and product, aiming to solve the current technical problem that the network side constantly instructs the RedCap terminal to switch to a cell that does not support its access, causing the terminal to repeatedly attempt to switch, seriously affecting the user experience.

[0006] To achieve the above object, the present application proposes a terminal connection switching method, the terminal connection switching method comprising:

[0007] When in a target mode and in a connected state with a current cell, obtaining reconfiguration information, the reconfiguration information including a newly added field standard;

[0008] Obtaining support function measurement results of neighboring cells according to the target mode based on the newly added field standard;

[0009] When the support function measurement result meets the cell switching requirement, each adjacent cell is screened according to the support function measurement result to obtain a target cell;

[0010] The connection with the current cell is switched to the target cell, thereby implementing terminal switching of the terminal in the target mode.

[0011] In one embodiment, obtaining the support function measurement result of the neighboring cell according to the target mode based on the newly added field standard includes:

[0012] When the target mode is the first mode, identifying a reference cell according to a signal frequency in the reconfiguration information;

[0013] Parsing the cell system information of each reference cell based on the measurement parameters in the reconfiguration information to obtain the terminal status and function status of each reference cell;

[0014] Screening the reference cell according to the terminal state and function state to obtain a neighboring cell;

[0015] A supported function measurement result of a neighboring cell is obtained based on the newly added field standard, the terminal state and the function state.

[0016] In one embodiment, obtaining the support function measurement result of the neighboring cell according to the target mode based on the newly added field standard further includes:

[0017] When the target mode is the second mode, receiving the terminal status and function status of each neighboring cell;

[0018] When the terminal state and the function state meet the preset function requirements, the supported function measurement result of the neighboring cell is obtained according to the newly added field standard and the signal parameter.

[0019] In one embodiment, when the support function measurement result meets the cell switching requirement, screening each neighboring cell according to the support function measurement result to obtain the target cell includes:

[0020] When the support function measurement result meets the cell switching requirement, obtaining the function state and terminal state of the neighboring cell according to the support function measurement result;

[0021] Obtaining a preselected cell according to the terminal state and the functional state;

[0022] Compare the network parameters of each pre-selected cell and obtain the target cell based on the comparison result.

[0023] In one embodiment, the functional state includes a first functional state, a second functional state, a third functional state and a fourth functional state; the terminal state includes a first terminal state and a second terminal state;

[0024] The obtaining a preselected cell according to the terminal state and the functional state includes:

[0025] When the terminal state is the first terminal state and the functional state is the first functional state or the third functional state, taking the neighboring cell as a pre-selected cell;

[0026] When the terminal state is the second terminal state and the functional state is the second functional state or the fourth functional state, the neighboring cell is used as a pre-selected cell.

[0027] In one embodiment, the support function measurement result includes a standard value of a newly added field;

[0028] When the support function measurement result meets the cell switching requirement, screening each neighboring cell according to the support function measurement result to obtain the target cell includes:

[0029] Identify the standard values ​​of the newly added fields in the measurement results of each neighboring cell support function;

[0030] When the standard value of the newly added field is equal to the preset value, determining that the support function measurement result does not meet the cell switching requirement;

[0031] When the standard value of the newly added field is not equal to the preset value, it is determined that the support function measurement result meets the cell switching requirement.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a terminal connection switching device, the terminal connection switching device comprising:

[0033] An information acquisition module, used to acquire reconfiguration information when the target mode is in a connected state with the current cell, wherein the reconfiguration information includes a newly added field standard;

[0034] A function measurement module, configured to obtain a support function measurement result of a neighboring cell according to the target mode based on the newly added field standard;

[0035] A cell screening module, configured to screen each adjacent cell according to the support function measurement result to obtain a target cell when the support function measurement result meets the cell switching requirement;

[0036] The terminal connection switching module is used to switch the connection with the current cell to the target cell, so as to realize terminal switching of the terminal in the target mode.

[0037] In addition, to achieve the above-mentioned purpose, the present application also proposes a terminal connection switching device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the terminal connection switching method described above.

[0038] In addition, to achieve the above objectives, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the terminal connection switching method described above are implemented.

[0039] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the terminal connection switching method described above are implemented.

[0040] One or more technical solutions proposed in this application have at least the following technical effects: BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the terminal connection switching method of the present application;

[0044] Figure 2 A test environment topology diagram provided for the first embodiment of the terminal connection switching method of the present application;

[0045] Figure 3 A schematic diagram of sending the A3 event measurement configuration carrying the isRedcapCell field provided in the first embodiment of the terminal connection switching method of the present application;

[0046] Figure 4 A schematic diagram of sending the A2 event measurement configuration carrying the isRedcapCell field provided in the first embodiment of the terminal connection switching method of the present application;

[0047] Figure 5A schematic diagram of a measurement report carrying an isRedcapCell field sent by a Redcap terminal provided in Embodiment 1 of the terminal connection switching method of the present application;

[0048] Figure 6 A schematic diagram of the rate at which a Redcap terminal moves from a 5G Redcap cell to a cell that does not support Redcap 5G, provided in Embodiment 1 of the terminal connection switching method of the present application;

[0049] Figure 7 A schematic diagram of a Redcap terminal sending a measurement report carrying a neighboring area supporting the Redcap function provided in Embodiment 1 of the terminal connection switching method of the present application;

[0050] Figure 8 A schematic diagram of the rate at which an 8Redcap terminal moves from a 5GRedcap cell to a cell supporting Redcap 5G provided in Embodiment 1 of the terminal connection switching method of the present application;

[0051] Fig. 9 A schematic diagram of a flow chart provided for the second embodiment of the terminal connection switching method of the present application;

[0052] Fig.10 A schematic diagram of a 5G RedCap terminal cell switching process provided in Embodiment 2 of the terminal connection switching method of this application;

[0053] Fig.11 A schematic diagram of a cell switching process of a RedCap multi-mode terminal provided in Embodiment 2 of the terminal connection switching method of the present application;

[0054] Fig.12 This is a schematic diagram of the module structure of the terminal connection switching device according to an embodiment of the present application;

[0055] Fig.13 Schematic diagram of the device structure of the hardware operating environment involved in the terminal connection switching method in the embodiment of the present application.

[0056] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0058] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0059] The main solution of the embodiment of the present application is: when the current cell is in a connected state based on the target mode, reconfiguration information is obtained, and the reconfiguration information includes a newly added field standard; based on the newly added field standard, the support function measurement result of the adjacent cell is obtained according to the target mode; when the support function measurement result meets the cell switching requirement, each adjacent cell is screened according to the support function measurement result to obtain the target cell; the connection state of the current cell is switched to the target cell, so as to realize the terminal switching of the terminal under the target mode.

[0060] As the existing technology, 3GPP, as a global mobile communication standardization organization, is responsible for formulating standards for mobile communication technology. Over time, the organization has continuously launched new standard versions, among which R15, R16 and R17 standards were frozen in 2018, 2020 and 2022 respectively.

[0061] In the 3GPP R17 standard, a new technology 5G RedCap (Reduced Capability, referred to as 5G simplified version) was introduced. This is a simplified version of 5G designed to reduce costs and power consumption. RedCap terminal, also known as lightweight 5G NR (NR-Light) terminal, represents a terminal device with reduced performance. This terminal simplifies the device structure by reducing certain functions, such as reducing antenna performance, reducing system bandwidth, and reducing peak rate. The purpose of this is to reduce the cost, size and power consumption of the terminal. Simply put, RedCap technology makes 5G terminals lighter, more economical and energy-saving.

[0062] This solution aims to explore the problems encountered by RedCap terminals during the switching process and their solutions. Currently, most 5G base stations support R15 or R16 protocol versions, or base stations support R17 protocol version, but the base stations themselves do not support the Redcap function. These versions of base stations do not support direct access of RedCap terminals. To solve this problem, RedCap multi-mode terminals need to support compatibility with 4G (LTE) networks. In this way, when the 5G network is unavailable, the RedCap terminal can fall back to the 4G network, thereby ensuring business continuity and user experience.

[0063] The present application provides a solution, a terminal connection switching method, an apparatus, a device, a storage medium and a product, which relate to the field of wireless technology, including: when being connected to a current cell in a target mode, obtaining reconfiguration information, the reconfiguration information including a newly added field standard; obtaining a support function measurement result of an adjacent cell according to the target mode based on the newly added field standard; when the support function measurement result meets the cell switching requirement, screening each adjacent cell according to the support function measurement result to obtain a target cell; switching the connection state of the current cell to the target cell, the method performs field feedback based on factors such as network quality, terminal status and support status of the adjacent cell's reduced configuration function when detecting whether the adjacent cell supports the reduced configuration function through the newly added field of the reconfiguration information, and after the field feedback, screening the adjacent cell with the best network quality as the target cell for terminal connection switching to ensure the continuous and stable operation of the reduced configuration terminal in the network environment.

[0064] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a terminal connection switching method, etc. The following takes the terminal connection switching method as an example to illustrate this embodiment and the following embodiments.

[0065] Based on this, the embodiment of the present application provides a terminal connection switching method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the terminal connection switching method of the present application.

[0066] In this embodiment, the terminal connection switching method includes steps S10 to S40:

[0067] Step S10: When the target mode is in a connected state with the current cell, reconfiguration information is obtained, where the reconfiguration information includes a newly added field standard.

[0068] It is understandable that 5G RedCap (Reduced Capability) is a technology designed to reduce the complexity, cost, size and power consumption of 5G terminal devices. By tailoring the functions of 5G NR (New Radio), terminal devices can access the 5G network at a lower cost while maintaining the necessary 5G features such as lower latency and higher data rates. 5G RedCap cells refer to those 5G network areas that support RedCap terminal devices to access.

[0069] It should be noted that the present invention allows RedCap terminals to maintain service continuity in a network environment where 5G RedCap cells and 5G ordinary NR cells coexist, or in a network environment where 4G and 5G coexist. The RedCap terminals here include both RedCap single-mode terminals that only support access to RedCap cells of 5GNR networks, and RedCap multi-mode terminals that simultaneously support access to RedCap cells of 5G NR networks and 4G LTE networks.

[0070] It should be emphasized that, firstly, the access condition of the RedCap terminal may be that if the intraFreqReselectionRedCap parameter does not exist in SIB1, then the cell will not allow the RedCap terminal to access.

[0071] Secondly, the two parameters cellBarredRedCap1Rx and cellBarredRedCap2Rx directly determine whether the cell allows RedCap terminals with single receive antenna (1Rx) or dual receive antennas (2Rx) to access. These parameters provide network operators with flexibility to restrict or allow access to specific types of RedCap terminals based on network configuration and terminal capabilities.

[0072] Finally, the halfDuplexRedCapAllowed parameter is specific to the frequency division duplex (FDD) network format and indicates whether the cell supports access by RedCap terminals that only have half-duplex capabilities. This parameter is critical to ensuring network compatibility and optimizing resource usage.

[0073] It is worth noting that it helps prevent RedCap terminals from performing invalid searches and reselections in cells that do not support their features. After analyzing these parameters, the RedCap terminal will evaluate whether it meets the access conditions of the cell. Only when the conditions are met will the RedCap terminal choose to reside in the cell and initiate a random access process. RedCap terminals can only reside in NR cells that support the RedCap function (ie, 5G RedCap cells) in the 5G NR network, and cannot access ordinary NR cells that do not support RedCap (ie, 5G ordinary NR cells).

[0074] It should be noted that the target mode may include the switching mode in a 5G network environment where a 5G RedCap cell and a 5G ordinary NR cell coexist, which may be referred to as an NR switching mode; and may also include the switching mode in a network environment where a 4G LTE cell and a 5G NR cell coexist, which may be referred to as an LTE switching mode.

[0075] It should be noted that the execution subject of this embodiment may be a terminal with RedCap function, hereinafter referred to as RedCap terminal.

[0076] It should be understood that when the target mode is the NR switching mode, being connected to the current cell in the target mode can be understood as the RedCap terminal first resides in the 5G RedCap cell that supports its access and successfully establishes a service connection. Based on the service connection, RedCap enters the NR mode connection.

[0077] When the target mode is LTE switching mode, being connected to the current cell in the target mode can be understood as making the RedCap multimode terminal first reside in the cell of the 4G LTE network and successfully establish a service connection, based on which the RedCap multimode terminal enters the connection state of the LTE mode.

[0078] It should be noted that the reconfiguration information may include new field standards, NR frequency points, measurement intervals, and test report events, etc.; among which, the new field standards may be new field values ​​corresponding to setting neighboring cell parameters and functional status in different situations.

[0079] In a specific implementation, a new field named isRedcapCell is added to a measurement configuration message. The value of the field isRedcapCell=0, 1, 2, 3, 4, which is calculated according to whether the base station supports Redcap and whether it supports 1RX or 2RX.

[0080] Step S20: obtaining the support function measurement result of the neighboring cell based on the newly added field standard and the target mode.

[0081] It should be noted that the support function measurement result may be a result obtained according to the newly added field standard and the support functions of each adjacent cell. The support function measurement result may include whether the cell supports the Redcap function and the mobile phone reception capability category supported by the cell (the supported mobile phone reception capability may include 1RX or 2RX)

[0082] It is understandable that first determine whether the cell supports the Redcap function, and the mobile phone reception capabilities it supports (such as 1RX or 2RX) must include the capabilities of the current mobile phone. This step is the basis for ensuring that the mobile phone can operate normally in the new cell after switching. And the mobile phone reception capabilities it supports (such as 1RX or 2RX) must include the capabilities of the current mobile phone, which is the basis for ensuring that the mobile phone can operate normally in the new cell after switching.

[0083] It should be emphasized that the supported function measurement results can be expressed as 0, 1, 2, 3, and 4; among them, the neighboring cell does not support the RedCap function, so isRedcapCell is set to 0; the neighboring cell supports the access of RedCap terminals, both with 1RX and 2RX receiving capabilities, so isRedcapCell is set to 1; the neighboring cell only supports RedCap terminals with 2RX receiving capabilities, and does not support terminals with 1RX receiving capabilities, then isRedcapCell is set to 2; the neighboring cell only supports RedCap terminals with 1RX receiving capabilities, and does not support terminals with 2RX receiving capabilities, then isRedcapCell is set to 3; the neighboring cell supports the access of RedCap terminals, both with 1RX and 2RX receiving capabilities, so isRedcapCell is set to 4.

[0084] It is understandable that based on the support function measurement result, the support status of the neighboring cell for the RedCap terminal can be accurately understood according to the isRedcapCell value reported by the UE, and an appropriate cell switching decision can be made accordingly.

[0085] In a feasible implementation, step S20 may include steps A21 to A24:

[0086] Step A21, when the target mode is the first mode, identifying a reference cell according to the signal frequency in the reconfiguration information.

[0087] It should be understood that the first mode can be an NR mode switching mode; it is understandable that when the RedCap terminal enters the NR mode connection state, the base station will configure the NR measurement parameters to it through a reconfiguration message, including NR frequency, measurement interval, test report event, and the newly added field isRedcapCell, etc. These NR frequencies may include 5G RedCap cells, and may also include 5G ordinary NR cells that do not support RedCap terminal access.

[0088] It can be understood that the NR frequency can be understood as the signal frequency.

[0089] It should be noted that identifying the reference cell according to the signal frequency in the reconfiguration information may be determining which surrounding cells are based on a signal frequency search.

[0090] Step A22: parsing the cell system information of each reference cell based on the measurement parameters in the reconfiguration information to obtain the terminal status and function status of each reference cell.

[0091] It is understandable that the measurement parameters may be the intraFreqReselectionRedCap parameter, cellBarredRedCap1Rx, and cellBarredRedCap2Rx.

[0092] It should be understood that parsing the cell system information of each reference cell can be to check whether specific parameters in the neighboring cell system information block 1 (SIB1) exist and whether they are prohibited. If they exist and are not prohibited, it is considered to support the RedCap connection function and support connection by terminals that are not prohibited.

[0093] Step A23: Screen the reference cells according to the terminal status and function status to obtain adjacent cells.

[0094] In a specific implementation, parsing the cell system information of each reference cell to obtain the terminal state and the functional state of each reference cell may be parsing SIB1 of each reference cell, wherein if there is an intraFreqReselectionRedCap parameter, it is considered that the functional state supports the RedCap connection function;

[0095] It should be understood that when the intraFreqReselectionRedCap parameter exists, the terminal state can be obtained according to the prohibited state of cellBarredRedCap1Rx and cellBarredRedCap2Rx.

[0096] In a specific implementation, the existence of the intraFreqReselectionRedCap parameter can be understood as supporting the RedCap terminal access function. If cellBarredRedCap1Rx and cellBarredRedCap2Rx are not prohibited in the intraFreqReselectionRedCap parameter, both 1RX and 2RX mobile phone terminals have the connection function.

[0097] Step A24: obtaining the supported function measurement result of the neighboring cell based on the newly added field standard, the terminal status and the function status.

[0098] It is understandable that the RedCap terminal performs the configured measurement task. In the connected state, the RedCap terminal identifies the RedCap cell by parsing the parameters in SIB1. When the cell signal quality under a certain NR frequency point meets the preset conditions, the RedCap terminal will send a measurement report to the base station to inform that there is an NR neighboring cell with good signal quality, and bring the isRedcapCell field.

[0099] In this implementation, by obtaining the configuration information of the neighboring cell from the UE in advance in a 5G network environment where the 5G RedCap cell and the 5G ordinary NR cell coexist, it is pre-determined whether the Redcap function is supported based on the configuration information before performing screening and switching, thereby avoiding unnecessary switching attempts and network search operations, thereby ensuring that the data services of the RedCap terminal in the two network environments can maintain continuity and stability, reducing power consumption and improving user experience.

[0100] In another feasible implementation, step S20 may include steps B21 to B22:

[0101] Step B11, when the target mode is the second mode, receiving the terminal status and function status of each adjacent cell.

[0102] It is understandable that the second mode can be understood as an LTE switching mode in a network environment where 4G LTE cells and 5G NR cells coexist.

[0103] It should be understood that when a RedCap multimode terminal enters the connected state of LTE mode, the network may send a reconfiguration message to configure heterogeneous NR measurements for it. These configurations include NR frequency, measurement interval, measurement report event, and the newly added field isRedcapCell, etc., in order to prepare for possible network switching.

[0104] It should be noted that when in the second mode, it is not possible to actively report whether each cell supports the RedCap function. The signal parameters of each adjacent cell can be received in real time. The signal parameters of each adjacent cell received in real time can be obtained in time through inter-system measurement. Inter-RAT Measurement refers to the user equipment (UE) measuring parameters such as signal quality of other different types of radio access technologies under the current serving radio access technology (RAT, Radio Access Technology).

[0105] Step B12: when the terminal state and the function state meet the preset function requirements, obtain the support function measurement result of the neighboring cell according to the newly added field standard and the signal parameter.

[0106] It is understandable that the terminal status and functional status satisfying the preset functional requirements can be understood as the terminal status of the cell including the 1RX terminal and the 2RX terminal, and the functional status including the Redcap function.

[0107] The above are only two feasible implementations of step S20 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S20.

[0108] Step S30: When the support function measurement result meets the cell switching requirement, each adjacent cell is screened according to the support function measurement result to obtain a target cell.

[0109] It is understandable that the supporting function measurement result meeting the cell switching requirement can be understood as when there is no non-zero value in the supporting function measurement result, it is considered that the cell switching requirement is met.

[0110] It should be noted that screening each neighboring cell according to the support function measurement result to obtain the target cell can be screening each neighboring cell according to the function status and terminal status of each neighboring cell, and further screening each neighboring cell according to the signal quality to obtain the target cell.

[0111] In a feasible implementation manner, step S30 may include steps A301 to A303:

[0112] Step A301: Identify the standard value of a newly added field in the measurement result of each neighboring cell support function.

[0113] It is understandable that the supported function measurement result may include a standard value of a newly added field and may also include supported terminal types.

[0114] It should be understood that the standard value of the newly added field is extracted from the support function measurement result, and the standard value of the newly added field can be 0, 1, 2, 3, or 4.

[0115] Step A302: When the standard value of the newly added field is equal to a preset value, it is determined that the supported function measurement result does not meet the cell switching requirement.

[0116] It is understandable that the preset value may be 0, that is, when the standard value of the newly added field is equal to 0, the support function measurement result does not meet the cell switching requirement.

[0117] Step A303: When the standard value of the newly added field is not equal to the preset value, it is determined that the supported function measurement result meets the cell switching requirement.

[0118] It is understandable that when the standard value of the newly added field is not 0, the support function measurement result meets the cell switching requirement.

[0119] In this implementation, a new field standard value is added to pre-determine whether the cell supports the Redcap function. When it is determined that the function is supported, further cell screening is performed to pre-eliminate cells that do not support it, thereby avoiding the situation where a cell does not support RedCap during switching, resulting in network switching failure and affecting user experience.

[0120] The above are merely feasible implementations before step S30 provided in this embodiment, and this embodiment does not specifically limit the specific implementations before step S30.

[0121] Step S40: switching the connection with the current cell to the target cell, thereby implementing terminal switching of the terminal in the target mode.

[0122] In the specific implementation, the isRedcapCell field is added to optimize the switching decision. In order to verify the effectiveness and performance of this solution, we conducted comprehensive tests in the laboratory environment.

[0123] The laboratory test environment simulates real-world network scenarios, including different types of base stations, UEs (user equipment), and multiple network configurations. In this environment, we configured the "Lingyun" 5G cloud base station that supports RedCap technology, and simulated different cell configurations by adjusting the parameters in the neighboring cell SIB1, including whether RedCap is supported, whether there are access restrictions on RedCap terminals with specific receiving capabilities, etc.

[0124] Experimental environment: 2 BBUs, 4 RRUs, 1 core network, 1 FTP server, and 1 Redcap terminal. The test environment topology diagram can be found at Figure 2 , Figure 2 The following two scenarios are listed:

[0125] Scenario 1: The phone moves from a 5G cell that supports Redcap to a 5G cell that does not support Redcap

[0126] The mobile phone resides on Cell1 which supports Redcap. Cell2, Cell3 and Cell4 are all neighboring cells of Cell1, among which Cell2, Cell3 and Cell4 do not support the Redcap function.

[0127] When the RedCap terminal enters the NR mode connected state, the base station will configure the NR measurement parameters to it through the reconfiguration message, including NR frequency, measurement interval, test report event, and the newly added field isRedcapCell, etc., and the RedCap terminal performs the configured measurement task. In the connected state, the RedCap terminal identifies whether the neighboring cell supports Redcap by parsing the parameters in SIB1. When the cell signal quality under certain NR frequencies meets the preset conditions (such as the A2 event), the RedCap terminal will send a measurement report to the base station to inform that there is an NR neighboring cell with better signal quality, and it will include the isRedcapCell field. When a certain threshold is met, such as the A3 event threshold, the handover is triggered. Since the target cells are not Redcap cells, the mobile phone will stay in the source cell service to maintain, and continue to search for a more suitable cell for handover.

[0128] The test steps are as follows:

[0129] NR connection state established: The RedCap terminal successfully establishes an NR connection with the base station and enters the connection state.

[0130] NR measurement parameter configuration: The base station configures NR measurement parameters to the RedCap terminal through the RRC (Radio Resource Control) reconfiguration message. These parameters include NR frequency, measurement interval, test report events (such as A2, A3, etc.), and the newly added field isRedcapCell, which is used to identify whether the cell supports the RedCap function.

[0131] The A3 event measurement configuration with the isRedcapCell field in the test can be referenced. Figure 3 For the A2 event measurement configuration with the isRedcapCell field, refer to Figure 4 ; Figure 3 and Figure 4The RedCap terminal performs the measurement tasks: the RedCap terminal performs signal quality measurements on neighboring cells according to the configured measurement parameters. Parse SIB1 to identify neighboring cells: in the connected state, the RedCap terminal will periodically parse the SIB1 (System Information Block 1) broadcast messages of neighboring cells. By parsing the parameters in SIB1, the RedCap terminal can identify whether the neighboring cell supports the RedCap function (i.e., check the isRedcapCell field). Measurement report triggering and sending: When the cell signal quality under certain NR frequencies meets the preset conditions (such as the A2 event threshold), the RedCap terminal will generate a measurement report. The measurement report will contain information about NR neighboring cells with better signal quality, and will carry the isRedcapCell field to indicate whether the neighboring cell supports RedCap. The RedCap terminal sends the measurement report to the base station to notify the base station of the existence of a neighboring cell with better signal quality.

[0132] In the test results, the measurement report sent by the Redcap terminal with the isRedcapCell field can be referred to Figure 5 In the figure, after the base station receives the measurement report, it will evaluate whether the switching trigger conditions (such as the A3 event threshold) are met. If the switching trigger conditions are met, but the target cell does not support RedCap (that is, the isRedcapCell field is false), the switching will not be triggered immediately. In the case that none of the target cells support RedCap, the RedCap terminal will reside in the current source cell to maintain service continuity. At the same time, the RedCap terminal will continue to perform measurement tasks and search for neighboring cells with better signal quality and support RedCap. If the RedCap terminal finds a neighboring cell that meets the switching conditions and supports RedCap, the switching process will be triggered.

[0133] The base station will send a handover command to the RedCap terminal to guide it to switch to the new target cell. Throughout the process, the introduction of the isRedcapCell field ensures that the RedCap terminal can identify and preferentially connect to the network cell that supports its features, thereby ensuring service continuity and stability, while avoiding unnecessary handover attempts and network search operations, reducing power consumption and improving user experience.

[0134] Furthermore, the rate at which a Redcap terminal moves from a 5G Redcap cell to a cell that does not support Redcap 5G can be referenced Figure 6 In the picture, the mobile phone moves from a 5G cell supporting Redcap to a 5G cell supporting Redcap.

[0135] The mobile phone resides on Cell1 which supports Redcap. Cell2, Cell3 and Cell4 are all neighboring cells of Cell1. Cell2 and Cell3 support the Redcap function, but Cell4 does not support the Redcap function.

[0136] When the A3 event threshold is met, even if the RSRP of the neighboring cell Cell4 is stronger than Cell2 and Cell3, the base station still selects the cell Cell2 supporting the Recap function (Cell2 RSRP is stronger than Cell3) for switching. The switching is successful and the data service is not affected.

[0137] Further, the Redcap terminal sends a measurement report carrying the neighboring cell supporting the Redcap function. Figure 7 The rate at which a Redcap terminal moves from a 5G Redcap cell to a Redcap 5G cell can be found at Figure 8 ,The experimental test data shown in the figure shows that this method not only enables the RedCap terminal to intelligently avoid initiating unnecessary cell switching attempts when detecting a 5G ordinary NR cell that is known to not allow it to access, but also gives priority to the neighboring cells that support RedCap, thereby greatly improving the user experience while ensuring business continuity and stability.

[0138] This embodiment provides a terminal connection switching method. When detecting whether a neighboring cell supports the reduced configuration function through a newly added field of the reconfiguration information, field feedback is performed based on factors such as network quality, terminal status, and support for the reduced configuration function of the neighboring cell. After the field feedback, the neighboring cell with the best network quality is selected as the target cell for terminal connection switching, thereby ensuring the continuous and stable operation of the reduced configuration terminal in the network environment.

[0139] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Fig. 9 In step S30, the terminal connection switching method further includes steps S31 to S33:

[0140] Step S31: when the support function measurement result meets the cell switching requirement, the function state and terminal state of the neighboring cell are obtained according to the support function measurement result.

[0141] It is understandable that the standard values ​​of the newly added fields in the support function measurement results represent different function states and terminal states.

[0142] In a specific implementation, if the intraFreqReselectionRedCap parameter does not exist in the SIB1 of the neighboring cell, it means that the neighboring cell does not support the RedCap function, so isRedcapCell is set to 0. If the intraFreqReselectionRedCap parameter exists in the SIB1 of the neighboring cell, and both cellBarredRedCap1Rx and cellBarredRedCap2Rx in the parameter indicate not prohibited (notBarred), it means that the neighboring cell supports the access of RedCap terminals, regardless of 1RX or 2RX receiving capability, so isRedcapCell is set to 1. If the intraFreqReselectionRedCap parameter exists in the SIB1 of the neighboring cell, but cellBarredRedCap1Rx indicates prohibited (Barred) and cellBarredRedCap2Rx indicates not prohibited (notBarred), this means that the neighboring cell only supports RedCap terminals with 2RX receiving capability, and does not support terminals with 1RX receiving capability. In this case, isRedcapCell is set to 2. If the intraFreqReselectionRedCap parameter exists in the SIB1 of the neighboring cell, but cellBarredRedCap1Rx indicates not prohibited (notBarred) and cellBarredRedCap2Rx indicates prohibited (Barred), this means that the neighboring cell only supports RedCap terminals with 1RX receiving capability and does not support terminals with 2RX receiving capability. At this time, isRedcapCell is set to 3. If the intraFreqReselectionRedCap parameter exists in the SIB1 of the neighboring cell, and both cellBarredRedCap1Rx and cellBarredRedCap2Rx indicate prohibited (Barred), this means that the neighboring cell does not support access of any RedCap terminal. In this case, although the neighboring cell may technically support RedCap (because of the existence of the intraFreqReselectionRedCap parameter), the access of RedCap terminals is prohibited due to certain reasons (such as network policies, capacity limitations, etc.). At this time, isRedcapCell is set to 4.

[0143] Among them, the terminal status includes that the neighboring area supports RedCap terminals with 1RX receiving capability; the neighboring area supports RedCap terminals with 2RX receiving capability; the neighboring area supports RedCap terminals with 1RX receiving capability and with 2RX receiving capability.

[0144] Among them, the functional status includes the above four states 1, 2, 3, and 4.

[0145] It should be noted that the functional state includes a first functional state, a second functional state, a third functional state and a fourth functional state; the terminal state includes a first terminal state and a second terminal state.

[0146] Step S32: obtaining a pre-selected cell according to the terminal status and the functional status.

[0147] It can be understood that the pre-selected cell may be one or more of a plurality of adjacent cells.

[0148] It should be noted that the pre-selected cells are cells that are initially screened based on the terminal status and functional status, and there are different screening methods based on different target modes.

[0149] In a feasible implementation, step S32 may include steps A321 to A323:

[0150] Step A321, when the terminal state is the first terminal state and the functional state is the first functional state or the third functional state, the adjacent cell is used as a pre-selected cell.

[0151] It should be noted that when the target mode is the NR switching mode, when the terminal state is the first terminal state and the functional state is the first functional state or the third functional state, the neighboring cell can be used as a pre-selected cell. Fig.10 , Fig.10 In the cell switching process for 5G RedCap terminals, determine whether there is a non-zero value for isRedcapCell in all reported neighboring cells. If isRedcapCell has a non-zero value, it means that there are 5G cells that support Redcap among all reported neighboring cells, and go to step 8. If the isRedcapCell value is 0, execute step 5 and follow the existing process. Step 8: Determine the isRedcapCell value of all reported neighboring cells. Step 9a: If the Redcap terminal is 1RX and isRedcapCell is equal to 1 or 3, if this condition is met, go to step 10, otherwise execute step 12, stay in the current cell, do not switch, and continue to search for a more suitable cell for switching. Step 10: The base station first selects the neighboring cell in step 9a as the pre-selected cell.

[0152] It should be further explained that when the target mode is the LTE switching mode, when the terminal state is the first terminal state and the functional state is the first functional state or the third functional state, the neighboring cell can be used as the pre-selected cell. Fig.11 , Fig.11For the cell switching process of RedCap multi-mode terminals, determine whether the isRedcapCell value in the NR neighboring cell reported by the terminal is non-zero. If isRedcapCell has a non-zero value, it means that there are 5G cells that support Redcap among all reported neighboring cells, and go to step 8. If the isRedcapCell values ​​are all 0, execute step 5 and follow the existing process. Step 8: Determine the isRedcapCell values ​​of all reported NR neighboring cells. Step 9a: If the Redcap terminal is 1RX and isRedcapCell is equal to 1 or 3, if this condition is met, go to step 10, otherwise execute step 12, stay in the current cell, do not switch, and continue to search for a more suitable cell for switching. The base station first selects the neighboring cell of step 9a as the pre-selected cell.

[0153] Step A322: when the terminal state is the second terminal state and the functional state is the second functional state or the fourth functional state, the adjacent cell is used as a pre-selected cell.

[0154] It should be noted that the reference Fig.10 When the target mode is NR switching mode, if the Redcap terminal is 2RX and isRedcapCell is equal to 1 or 2, if this condition is met, go to step 10, otherwise go to step 12, stay in the current cell, do not switch, and continue to search for a more suitable cell for switching.

[0155] It should be noted that the reference Fig.11 When the target mode is LTE switching mode, if the Redcap terminal is 2RX and isRedcapCell is equal to 1 or 2, if this condition is met, go to step 10, otherwise go to step 12, stay in the current cell, do not switch, and continue to search for a more suitable cell for switching.

[0156] In this implementation, by screening out cells that meet the Redcap switching requirements according to different terminal states and functional states in different target modes, the continuous and stable operation of the Redcap terminal in the network environment is ensured.

[0157] The above are only feasible implementations of step S32 provided in this embodiment, and this embodiment does not specifically limit the specific implementation of step S32.

[0158] Step S33: Compare the network parameters of the pre-selected cells and obtain the target cell according to the comparison result.

[0159] It should be noted that network parameters include two key network quality indicators - Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) for evaluation. RSRP measures the signal strength received by the mobile phone from the base station, while RSRQ reflects the quality of the signal. The two together determine the stability and reliability of the communication link.

[0160] It should be understood that based on the evaluation results of RSRP and RSRQ, we rank these candidate target cells. The principle of ranking is to give priority to cells with relatively high RSRP and RSRQ values, because these cells can usually provide more stable and higher quality communication services.

[0161] It should be noted that the network parameters of each pre-selected cell are compared, and the target cell obtained according to the comparison result can be the one at the top of the selection ranking, that is, the cell with the strongest comprehensive performance of RSRP and RSRQ, as the target cell for the Redcap terminal switching. Such a selection strategy aims to ensure that the Redcap terminal can seamlessly transition to the optimal network environment during the network switching process, thereby achieving continuous and stable operation, so as to ensure the service continuity and user experience of the Redcap terminal.

[0162] This embodiment provides a terminal connection switching method, which pre-selects neighboring cells based on factors such as the terminal status and the support of the Redcap function of the neighboring cell, and then comprehensively calculates parameters such as the reference signal reception power and reference signal reception quality of the cell to determine the final switching target cell, thereby effectively ensuring the service continuity and user experience of the RedCap terminal.

[0163] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the terminal connection switching method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0164] This application also provides a terminal connection switching device, please refer to Fig.12 , the terminal connection switching device comprises:

[0165] An information acquisition module 10, configured to acquire reconfiguration information when the cell is in a connected state with the current cell in the target mode, wherein the reconfiguration information includes a newly added field standard;

[0166] A function measurement module 20, configured to obtain a support function measurement result of a neighboring cell according to the target mode based on the newly added field standard;

[0167] A cell screening module 30, configured to screen each adjacent cell according to the support function measurement result to obtain a target cell when the support function measurement result meets the cell switching requirement;

[0168] The terminal connection switching module 40 is used to switch the connection with the current cell to the target cell, so as to implement terminal switching of the terminal in the target mode.

[0169] The terminal connection switching device provided by the present application adopts the terminal connection switching method in the above embodiment, which can solve the current technical problem that the terminal repeatedly attempts to switch due to the network side constantly instructing the RedCap terminal to switch to a cell that does not support its access, which seriously affects the user experience. Compared with the prior art, the beneficial effects of the terminal connection switching device provided by the present application are the same as the beneficial effects of the terminal connection switching method provided by the above embodiment, and the other technical features in the terminal connection switching device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0170] The present application provides a terminal connection switching device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the terminal connection switching method in the above-mentioned embodiment 1.

[0171] Reference below Fig.13 , which shows a schematic diagram of the structure of a terminal connection switching device suitable for implementing an embodiment of the present application. The terminal connection switching device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Fig.13 The terminal connection switching device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0172] like Fig.13As shown, the terminal connection switching device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the terminal connection switching device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the terminal connection switching device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a terminal connection switching device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided alternatively.

[0173] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0174] The terminal connection switching device provided by the present application adopts the terminal connection switching method in the above embodiment, which can solve the current technical problem that the terminal repeatedly attempts to switch due to the network side constantly instructing the RedCap terminal to switch to a cell that does not support its access, which seriously affects the user experience. Compared with the prior art, the beneficial effects of the terminal connection switching device provided by the present application are the same as the beneficial effects of the terminal connection switching method provided by the above embodiment, and the other technical features in the terminal connection switching device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0175] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0176] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0177] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the terminal connection switching method in the above-mentioned embodiment.

[0178] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0179] The computer-readable storage medium may be included in the terminal connection switching device; or may exist independently without being assembled into the terminal connection switching device.

[0180] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the terminal connection switching device, the terminal connection switching device: when being connected to the current cell in a target mode, obtains reconfiguration information, the reconfiguration information including a newly added field standard; obtains support function measurement results of neighboring cells according to the target mode based on the newly added field standard; when the support function measurement results meet the cell switching requirements, screens each neighboring cell according to the support function measurement results to obtain a target cell; switches the connection state of the current cell to the target cell, thereby realizing terminal switching of the terminal in the target mode.

[0181] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0182] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0183] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0184] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned terminal connection switching method, and can solve the current technical problem that the terminal repeatedly attempts to switch because the network side constantly instructs the RedCap terminal to switch to a cell that does not support its access, which seriously affects the user experience. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the terminal connection switching method provided by the above-mentioned embodiment, which will not be repeated here.

[0185] The present application also provides a computer program product, including a computer program, which implements the steps of the terminal connection switching method as described above when the computer program is executed by a processor.

[0186] The computer program product provided by the present application can solve the current technical problem that the network side constantly instructs the RedCap terminal to switch to a cell that does not support its access, causing the terminal to repeatedly attempt to switch, seriously affecting the user experience. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the terminal connection switching method provided by the above embodiment, and will not be repeated here.

[0187] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A terminal connection switching method, characterized in that: The method comprises: When in a target mode and in a connected state with a current cell, obtaining reconfiguration information, the reconfiguration information including a newly added field standard; Obtaining support function measurement results of neighboring cells according to the target mode based on the newly added field standard; When the support function measurement result meets the cell switching requirement, each adjacent cell is screened according to the support function measurement result to obtain a target cell; The connection with the current cell is switched to the target cell, thereby implementing terminal switching of the terminal in the target mode.

2. The method according to claim 1, characterized in that The obtaining the support function measurement result of the neighboring cell based on the newly added field standard and according to the target mode includes: When the target mode is the first mode, identifying a reference cell according to a signal frequency in the reconfiguration information; Parsing the cell system information of each reference cell based on the measurement parameters in the reconfiguration information to obtain the terminal status and function status of each reference cell; Screening the reference cell according to the terminal state and function state to obtain a neighboring cell; A supported function measurement result of a neighboring cell is obtained based on the newly added field standard, the terminal state and the function state.

3. The method according to claim 1, characterized in that The obtaining the support function measurement result of the neighboring cell according to the target mode based on the newly added field standard also includes: When the target mode is the second mode, receiving the terminal status and function status of each neighboring cell; When the terminal state and the function state meet the preset function requirements, the supported function measurement result of the neighboring cell is obtained according to the newly added field standard and the signal parameter.

4. The method according to claim 1, characterized in that When the support function measurement result meets the cell switching requirement, screening each neighboring cell according to the support function measurement result to obtain the target cell includes: When the support function measurement result meets the cell switching requirement, obtaining the function state and terminal state of the neighboring cell according to the support function measurement result; Obtaining a preselected cell according to the terminal state and the functional state; Compare the network parameters of each pre-selected cell and obtain the target cell based on the comparison result.

5. The method according to claim 4, characterized in that The functional state includes a first functional state, a second functional state, a third functional state and a fourth functional state; the terminal state includes a first terminal state and a second terminal state; The obtaining a preselected cell according to the terminal state and the functional state includes: When the terminal state is the first terminal state and the functional state is the first functional state or the third functional state, taking the neighboring cell as a pre-selected cell; When the terminal state is the second terminal state and the functional state is the second functional state or the fourth functional state, the neighboring cell is used as a pre-selected cell.

6. The method according to claim 1, characterized in that The support function measurement results include standard values ​​of newly added fields; When the support function measurement result meets the cell switching requirement, screening each neighboring cell according to the support function measurement result to obtain the target cell includes: Identify the standard values ​​of the newly added fields in the measurement results of each neighboring cell support function; When the standard value of the newly added field is equal to the preset value, determining that the support function measurement result does not meet the cell switching requirement; When the standard value of the newly added field is not equal to the preset value, it is determined that the support function measurement result meets the cell switching requirement.

7. A terminal connection switching device, characterized in that: The terminal connection switching device comprises: An information acquisition module, used to acquire reconfiguration information when the target mode is in a connected state with the current cell, wherein the reconfiguration information includes a newly added field standard; A function measurement module, configured to obtain a support function measurement result of a neighboring cell according to the target mode based on the newly added field standard; A cell screening module, configured to screen each adjacent cell according to the support function measurement result to obtain a target cell when the support function measurement result meets the cell switching requirement; The terminal connection switching module is used to switch the connection with the current cell to the target cell, so as to realize terminal switching of the terminal in the target mode.

8. A terminal connection switching device, characterized in that: The terminal connection switching device comprises: a memory, a processor, and a terminal connection switching program stored in the memory and executable on the processor, wherein the terminal connection switching program is configured to implement the terminal connection switching method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a terminal connection switching program, and when the terminal connection switching program is executed by the processor, the terminal connection switching method according to any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that The computer program product comprises a terminal connection switching program, and when the terminal connection switching program is executed by a processor, the steps of the terminal connection switching method according to any one of claims 1 to 6 are implemented.

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