Cell handover method, apparatus, device, and storage medium

Abstract

The application provides a cell switching method, device, equipment and storage medium. The method comprises the following steps: receiving a signal measurement instruction; acquiring an existing duration of a target mode identifier of a heterogeneous system 5G neighbor cell; if the existing duration exceeds a preset duration or the target mode identifier is not present, obtaining a signal measurement report; if the signal measurement report meets a preset switching condition, if the heterogeneous system 5G neighbor cell supports a RedCap mode, sending the signal measurement report to an LTE base station or sending a signal measurement report carrying a switching instruction to the LTE base station; switching the network to the heterogeneous system 5G neighbor cell according to a switching decision; if the heterogeneous system 5G neighbor cell does not support the RedCap mode, marking the target mode identifier, not sending the signal measurement report to the LTE base station, or generating an interrupt switching instruction and sending the signal measurement report to the LTE base station, so that the RedCap terminal is more stable and fast in switching from an LTE cell to a 5G cell.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, and in particular to a cell switching method, device, equipment and storage medium. BACKGROUND

[0002] 3GPP (3rd Generation Partnership Project, third generation partnership project) is an international mobile communication standardization organization. RedCap (Reduced Capability, reduced capability) terminal is defined in the 3GPP R17 (release 17) frozen standard. The RedCap terminal reduces the terminal air interface capability to reduce the cost, size and power consumption of the terminal. Currently, RedCap terminals are commercially available, and how to ensure the stable switching of RedCap terminals from LTE (Long Term Evolution, Long Term Evolution) to 5G (5th Generation Mobile Communication Technology, 5th Generation Mobile Communication Technology) is an urgent problem to be solved.

[0003] In the prior art, in the switching process of the 5G terminal from the LTE to the 5G, the terminal will perform measurement after receiving the measurement configuration, and will report the measurement event report to the base station after the measurement is completed, and the base station will complete the switching.

[0004] However, since the LTE network does not have the RedCap terminal identification capability, according to the signaling process of the prior art, when the RedCap terminal switches from the LTE to the 5G cell, there is a case of switching to a non-RedCap cell, thereby causing the switching failure. SUMMARY

[0005] The present application provides a cell switching method, device, equipment and storage medium to solve the technical problem that in the prior art signaling process, when the RedCap terminal switches from the LTE to the 5G cell, there is a case of switching to a non-RedCap cell, thereby causing the switching failure.

[0006] In a first aspect, the present application provides a cell switching method applied to a user terminal, comprising:

[0007] receiving a signal measurement indication sent by an LTE base station, wherein the signal measurement indication is sent by an LTE base station of an LTE cell when the LTE base station senses that the user terminal moves from the LTE cell to a heterogeneous 5G neighbor cell;

[0008] determining whether the heterogeneous 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the heterogeneous 5G neighbor cell does not support the RedCap mode;

[0009] If it is determined that the inter-system 5G neighbor cell has the target mode identifier, the duration of existence of the target mode identifier is obtained; if it is determined that the duration of existence exceeds a preset duration, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report;

[0010] If it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report;

[0011] If it is determined that the signal measurement report meets a preset handover condition, the system message of the 5G base station of the inter-system 5G neighbor cell is read;

[0012] It is determined from the system message whether the inter-system 5G neighbor cell supports the RedCap mode; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, the signal measurement report is sent to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; the handover decision sent by the LTE base station is received, and the network is switched to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, the signal measurement report is not sent to the LTE base station, and the inter-system 5G neighbor cell is marked as not supporting the RedCap mode; or,

[0013] It is determined from the system message whether the inter-system 5G neighbor cell supports the RedCap mode; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and the signal measurement report is sent to the LTE base station, wherein the signal measurement report carries the handover indication, so that the LTE base station generates a handover decision according to the signal measurement report and the handover indication; the handover decision sent by the LTE base station is received, and the network is switched to the base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode, an interrupted handover indication is generated, and the signal measurement report is sent to the LTE base station, wherein the signal measurement report carries the interrupted handover indication, so that the LTE base station interrupts the handover task according to the signal measurement report.

[0014] Optionally, the method as described above, after reading the system message of the 5G base station of the inter-system 5G neighbor cell, the method further comprises: determining whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message to generate a determination result and save the determination result; sending the signal measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report; receiving the handover decision sent by the LTE base station, and determining whether to handover the network to the base station of the inter-system 5G neighbor cell according to the handover decision and the determination result; if the determination result is that the inter-system 5G neighbor cell supports the RedCap mode, handover the network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if the determination result is that the inter-system 5G neighbor cell does not support the RedCap mode, mark the inter-system 5G neighbor cell as not supporting the RedCap mode, and refuse to execute the handover decision.

[0015] Optionally, the method as described above, the signal measurement according to the signal measurement indication and obtaining a signal measurement result comprises: performing signal measurement on the inter-system 5G neighbor cell according to the signal measurement indication to obtain a first signal measurement result; generating a B1 event measurement report according to the first signal measurement result; correspondingly, the preset handover condition comprises a preset B1 event handover condition, wherein the B1 event handover condition is that the first signal measurement result is higher than a preset first threshold value; correspondingly, the sending the signal measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report comprises: sending the B1 event measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the B1 event measurement report; or correspondingly, the generating a handover indication and sending the signal measurement report to the LTE base station if it is determined that the inter-system 5G neighbor cell supports the RedCap mode comprises: generating a handover indication and sending the B1 event measurement report to the LTE base station if it is determined that the inter-system 5G neighbor cell supports the RedCap mode.

[0016] Optionally, the method as described above, the signal measurement according to the signal measurement indication and obtaining a signal measurement result, comprises: performing signal measurement on the inter-system 5G neighbor cell and the LTE cell respectively according to the signal measurement indication to obtain a first signal measurement result and a second signal measurement result; generating a B2 event measurement report according to the first signal measurement result and the second signal measurement result; correspondingly, the preset handover condition comprises: a preset B2 event handover condition, wherein the B2 event handover condition is that the first signal measurement result is higher than a preset first threshold value and the second signal measurement result is lower than a preset second threshold value; correspondingly, the sending the signal measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report, comprises: sending the B2 event measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the B2 event measurement report; or correspondingly, the generating a handover indication and sending the signal measurement report to the LTE base station if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, comprises: generating a handover indication and sending the B2 event measurement report to the LTE base station if it is determined that the inter-system 5G neighbor cell supports the RedCap mode.

[0017] Optionally, the method as described above, the determining whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message, comprises: parsing the system message to obtain a remaining minimum system information SIB1 of the inter-system 5G neighbor cell; and determining whether the inter-system 5G neighbor cell allows RedCap terminals to access according to the SIB1.

[0018] In a second aspect, the present application provides a cell handover method, applied to an LTE base station, comprising:

[0019] When it is perceived that any user terminal moves from an LTE cell to an inter-system 5G neighbor cell, a signal measurement indication is sent to the user terminal to enable the user terminal to determine whether the inter-system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier that the inter-system 5G neighbor cell does not support the RedCap mode, if it is determined that the inter-system 5G neighbor cell has the target mode identifier, the existence duration of the target mode identifier is obtained, if it is determined that the existence duration exceeds a preset duration, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report, if it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report, if it is determined that the signal measurement report satisfies a preset handover condition, the system message of the 5G base station of the inter-system 5G neighbor cell is read, and whether the inter-system 5G neighbor cell supports the RedCap mode is determined according to the system message.

[0020] receiving the signal measurement report sent by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode according to the system message; generating a handover decision according to the signal measurement report and sending the handover decision to the user terminal, so that the user terminal switches the network to the base station of the inter-system 5G neighbor cell according to the handover decision; or

[0021] receiving the signal measurement report sent by the user terminal, wherein the signal measurement report carries a handover indication, and the handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode; generating a handover decision according to the signal measurement report and the handover indication and sending the handover decision to the user terminal, so that the user terminal switches the network to the base station of the inter-system 5G neighbor cell according to the handover decision; receiving the signal measurement report sent by the user terminal, wherein the signal measurement report carries an interrupted handover indication, and the interrupted handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell does not support the RedCap mode; interrupting a handover task according to the signal measurement report.

[0022] Optionally, the method as described above, after sending the signal measurement indication to the user terminal when any user terminal moves from the LTE cell to an inter-system 5G neighbor cell, further comprises: receiving the signal measurement report sent by the user terminal; generating a handover decision according to the signal measurement report and sending the handover decision to the user terminal, so that the user terminal determines whether to switch the network to the base station of the inter-system 5G neighbor cell according to the handover decision and a determination result, wherein the determination result is generated by the user terminal after determining whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message.

[0023] In a third aspect, the present application provides a cell handover device applied to a user terminal, comprising:

[0024] a receiving module configured to receive a signal measurement indication sent by an LTE base station, wherein the signal measurement indication is sent by the LTE base station of the LTE cell when the user terminal moves from the LTE cell to an inter-system 5G neighbor cell is perceived;

[0025] a first determining module configured to determine whether the inter-system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the inter-system 5G neighbor cell does not support the RedCap mode;

[0026] The first measurement module is configured to: if it is determined that the inter-system 5G neighbor cell has the target mode identifier, acquire a presence duration of the target mode identifier; and if it is determined that the presence duration exceeds a preset duration, perform signal measurement according to the signal measurement indication to obtain a signal measurement report.

[0027] The second measurement module is configured to: if it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, perform signal measurement according to the signal measurement indication to obtain a signal measurement report.

[0028] The second determination module is configured to: if it is determined that the signal measurement report meets a preset handover condition, read a system message of a 5G base station of the inter-system 5G neighbor cell.

[0029] The handover module is configured to: determine whether the inter-system 5G neighbor cell supports a RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, send the signal measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; receive the handover decision sent by the LTE base station, and hand over a network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, do not send the signal measurement report to the LTE base station, and mark the inter-system 5G neighbor cell as not supporting the RedCap mode; or,

[0030] The handover module is configured to: determine whether the inter-system 5G neighbor cell supports a RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generate a handover indication, and send the signal measurement report to the LTE base station, wherein the signal measurement report carries the handover indication, so that the LTE base station generates a handover decision according to the signal measurement report and the handover indication; receive the handover decision sent by the LTE base station, and hand over a network to the base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, mark the inter-system 5G neighbor cell as not supporting the RedCap mode, generate an interrupted handover indication, and send the signal measurement report to the LTE base station, wherein the signal measurement report carries the interrupted handover indication, so that the LTE base station interrupts a handover task according to the signal measurement report.

[0031] In a fourth aspect, the present application provides a cell handover device applied to an LTE base station, comprising:

[0032] The sending module is configured to send a signal measurement instruction to the user terminal when any user terminal is perceived to move from an LTE cell to a 5G inter-system neighbor cell, so that the user terminal determines whether the 5G inter-system neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the 5G inter-system neighbor cell does not support the RedCap mode, if it is determined that the 5G inter-system neighbor cell has the target mode identifier, the duration of the target mode identifier is obtained, if it is determined that the duration exceeds a preset duration, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report, if it is determined that the 5G inter-system neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report, if it is determined that the signal measurement report meets a preset handover condition, the system message of the 5G base station of the 5G inter-system neighbor cell is read, and it is determined whether the 5G inter-system neighbor cell supports the RedCap mode according to the system message;

[0033] The receiving module is configured to receive the signal measurement report sent by the user terminal after determining that the 5G inter-system neighbor cell supports the RedCap mode according to the system message, generate a handover decision according to the signal measurement report, and send the handover decision to the user terminal, so that the user terminal switches the network to the 5G base station of the 5G inter-system neighbor cell according to the handover decision; or,

[0034] The receiving module is configured to receive the signal measurement report sent by the user terminal, wherein the signal measurement report carries a handover instruction, wherein the handover instruction is generated by the user terminal after determining that the 5G inter-system neighbor cell supports the RedCap mode; generate a handover decision according to the signal measurement report and the handover instruction, and send the handover decision to the user terminal, so that the user terminal switches the network to the base station of the 5G inter-system neighbor cell according to the handover decision; receive the signal measurement report sent by the user terminal, wherein the signal measurement report carries an interrupted handover instruction, wherein the interrupted handover instruction is generated by the user terminal after determining that the 5G inter-system neighbor cell does not support the RedCap mode; interrupt the handover task according to the signal measurement report.

[0035] In a fifth aspect, the present application provides a terminal device, comprising: at least one processor and a memory;

[0036] The memory stores computer execution instructions;

[0037] The at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell handover method as described in the above first aspect and various possible designs of the first aspect.

[0038] In a sixth aspect, the present application provides a base station device, comprising at least one processor and a memory;

[0039] The memory stores computer-executable instructions.

[0040] The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the cell switching method as described in the second aspect above and various possible designs of the second aspect.

[0041] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium storing computer-executable instructions, when a processor executes the computer-executable instructions, the method as described in the first aspect above and various possible designs of the first aspect is implemented.

[0042] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium storing computer-executable instructions, when a processor executes the computer-executable instructions, the method as described in the second aspect above and various possible designs of the second aspect is implemented.

[0043] The cell switching method, device, equipment and storage medium provided by the present application, after determining that the signal measurement result meets the preset switching condition, reading the system message of the 5G base station of the inter-system 5G neighbor cell, judging whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; after determining that the inter-system 5G neighbor cell supports the RedCap mode, sending the signal measurement report to the LTE base station, so that the LTE base station generates the switching decision according to the signal measurement report; switching the network to the 5G base station of the inter-system 5G neighbor cell according to the switching decision; or, after determining that the inter-system 5G neighbor cell supports the RedCap mode, generating the switching indication, and sending the signal measurement report carrying the switching indication to the LTE base station, so that the LTE base station generates the switching decision according to the signal measurement report and the switching indication; switching the network to the 5G base station of the inter-system 5G neighbor cell according to the switching decision; and after determining that the inter-system 5G neighbor cell does not support the RedCap mode, marking the inter-system 5G neighbor cell as not supporting the RedCap mode; avoids the case that the RedCap terminal switches from the LTE to the 5G cell and then switches to the non-RedCap cell, thereby causing the switching failure, avoids the RedCap terminal repeatedly switching from the LTE to the 5G cell, and makes the RedCap terminal switching from the LTE to the 5G cell more stable and fast. BRIEF DESCRIPTION OF DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0045] Figure 1 A scenario diagram of a cell handover method provided by an embodiment of the present application is shown in FIG. 1.

[0046] Figure 2 A flow diagram of a cell handover method provided by an embodiment of the present application is shown in FIG. 2.

[0047] Figure 3 A structure diagram of a cell handover apparatus provided by an embodiment of the present application is shown in FIG. 3.

[0048] Figure 4 A structure diagram of another cell handover apparatus provided by an embodiment of the present application is shown in FIG. 4.

[0049] Figure 5 A hardware structure diagram of a terminal device provided by an embodiment of the present application is shown in FIG. 5.

[0050] Figure 6 A hardware structure diagram of a base station device provided by an embodiment of the present application is shown in FIG. 6.

[0051] The specific embodiments of the present application have been shown through the above-described drawings, and will be described in more detail hereinafter. The drawings and the written description are not intended to represent any way to limit the scope of the concept of the present application, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] The exemplary embodiments will be described in detail hereinbelow with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0054] Figure 1 A scenario diagram of a cell handover method provided by an embodiment of the present application is shown in FIG. 1. Figure 1 As shown in FIG. 1, it includes an LTE cell, a heterogeneous 5G neighbor cell, and a terminal, wherein the LTE cell and the heterogeneous 5G neighbor cell are each provided with a base station.

[0055] The base station of the LTE cell, the base station of the heterogeneous 5G neighbor cell, and the terminal can perform mobile communication.

[0056] Figure 2 A flowchart of a cell handover method is provided for an embodiment of the present application. The execution subject of the embodiment can be a user terminal as shown in FIG. 1, or other terminal devices, which are not particularly limited herein. As shown in FIG. 2, the method comprises the following steps. Figure 1 Figure 2

[0057] S201: receiving a signal measurement indication sent by an LTE base station, wherein the signal measurement indication is sent by the LTE base station of the LTE cell when the user terminal is perceived to move from the LTE cell to a 5G neighbor cell of a different system.

[0058] Wherein, when the user terminal moves from the LTE cell to the 5G neighbor cell of the different system, the LTE signal gradually weakens and the 5G signal gradually strengthens.

[0059] In the embodiment, the signal measurement indication can be a signal measurement request sent by the LTE base station of the LTE cell through RRC (Radio Resource Control) reconfiguration to establish a DRB (Data Radio Bearer), and the measurement configuration is issued in the reconfiguration message.

[0060] S202: determining whether the 5G neighbor cell of the different system has a target mode identifier, wherein the target mode identifier is an identifier indicating that the 5G neighbor cell of the different system does not support the RedCap mode.

[0061] Specifically, the field information containing the mode identifier in the 5G neighbor cell of the different system is identified and acquired, and it is determined whether the 5G neighbor cell of the different system has the target mode identifier.

[0062] S203: if it is determined that the 5G neighbor cell of the different system has the target mode identifier, the existing duration of the target mode identifier is acquired; if it is determined that the existing duration exceeds a preset duration, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report.

[0063] Specifically, the measurement requirement in the signal measurement indication is analyzed, and signal measurement is performed according to the requirement. Wherein, the measurement requirement can be B1 event measurement or B2 event measurement.

[0064] S204: if it is determined that the 5G neighbor cell of the different system does not have the target mode identifier, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report.

[0065] Specifically, the measurement requirement in the signal measurement indication is analyzed, and signal measurement is performed according to the requirement. Wherein, the measurement requirement can be B1 event measurement or B2 event measurement.

[0066] ​​S205: If it is determined that the signal measurement report meets the preset handover condition, read the system message of the 5G base station of the inter-system 5G neighbor cell.

[0067] In this embodiment, the preset handover condition can be that the 5G signal in the signal measurement result is higher than a preset threshold value, and / or the LTE signal in the signal measurement result is lower than a preset threshold value.

[0068] In this embodiment, the system message can be the following message: SIB (System Information Block) and / or MIB (Master Information Block).

[0069] Specifically, the broadcast channel of the 5G base station of the inter-system 5G neighbor cell is detected, the information carried by the broadcast channel is parsed, and the system message of the 5G base station of the inter-system 5G neighbor cell is obtained.

[0070] Illustratively, the PBCH (Physical Broadcast Channel) of the 5G base station of the inter-system 5G neighbor cell is detected, and the SIB and MIB of the 5G base station of the inter-system 5G neighbor cell are obtained.

[0071] In one embodiment, if the signal measurement result does not meet the preset handover condition, the cell handover task is interrupted.

[0072] S206: According to the system message, determine whether the inter-system 5G neighbor cell supports the RedCap mode; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, send the signal measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; receive the handover decision sent by the LTE base station, and according to the handover decision, switch the network to the 5G base station of the inter-system 5G neighbor cell; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, do not send the signal measurement report to the LTE base station, and mark the inter-system 5G neighbor cell as not supporting the RedCap mode; or.

[0073] Specifically, the system message is parsed to obtain the remaining minimum system information SIB1 of the inter-system 5G neighbor cell; and according to the SIB1, determine whether the inter-system 5G neighbor cell allows RedCap terminals to access.

[0074] Illustratively, by parsing the MIB of the 5G base station of the inter-system 5G neighbor cell, a parameter capable of identifying SIB1 (System Information Block 1) is obtained, the SIB is parsed according to the parameter, and the SIB1 of the 5G base station of the inter-system 5G neighbor cell is obtained.

[0075] Specifically, each field in the SIB1 is parsed, and parameter information for evaluating whether the terminal is allowed to access the cell is extracted from the multiple fields, and whether the inter-system 5G neighbor cell allows the RedCap terminal to access is judged according to the parameter information.

[0076] The parameter information is:

[0077] cellBarredRedCap1Rx / cellBarredRedCap2Rx

[0078] halfDuplexRedCapAllowed

[0079] intraFreqReselectionRedCap

[0080] cellBarredRedCap-r17.

[0081] S207: According to the system message, it is judged whether the inter-system 5G neighbor cell supports the RedCap mode; if it is judged that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and a signal measurement report is sent to the LTE base station, wherein the signal measurement report carries the handover indication, so that the LTE base station generates a handover decision according to the signal measurement report and the handover indication; receiving the handover decision sent by the LTE base station, and according to the handover decision, the network is switched to the base station of the inter-system 5G neighbor cell; if it is judged that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode, and an interrupted handover indication is generated, and a signal measurement report is sent to the LTE base station, wherein the signal measurement report carries the interrupted handover indication, so that the LTE base station interrupts the handover task according to the signal measurement report.

[0082] Specifically, the system message is parsed to obtain the remaining minimum system information SIB1 of the inter-system 5G neighbor cell; whether the inter-system 5G neighbor cell allows the RedCap terminal to access is judged according to the SIB1.

[0083] Exemplarily, by parsing the MIB of the 5G base station of the inter-system 5G neighbor cell, a parameter capable of identifying the SIB1 (System Information Block 1, remaining minimum system information) is obtained, the SIB is parsed according to the parameter, and the SIB1 of the 5G base station of the inter-system 5G neighbor cell is obtained.

[0084] Specifically, each field in the SIB1 is parsed, and parameter information for evaluating whether the terminal is allowed to access the cell is extracted from the multiple fields, and whether the inter-system 5G neighbor cell allows the RedCap terminal to access is judged according to the parameter information.

[0085] wherein the parameter information is:

[0086] cellBarredRedCap1Rx / cellBarredRedCap2Rx

[0087] halfDuplexRedCapAllowed

[0088] intraFreqReselectionRedCap

[0089] cellBarredRedCap-r17.

[0090] From the above description, in the present application, after determining that the signal measurement result meets the preset switching condition, the system message of the 5G base station of the inter-system 5G neighbor cell is read, and it is judged whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; after determining that the inter-system 5G neighbor cell supports the RedCap mode, the signal measurement report is sent to the LTE base station, so that the LTE base station generates a switching decision according to the signal measurement report; the network is switched to the 5G base station of the inter-system 5G neighbor cell according to the switching decision; or, after determining that the inter-system 5G neighbor cell supports the RedCap mode, a switching instruction is generated, and a signal measurement report carrying the switching instruction is sent to the LTE base station, so that the LTE base station generates a switching decision according to the signal measurement report and the switching instruction; the network is switched to the 5G base station of the inter-system 5G neighbor cell according to the switching decision; and after determining that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode; avoid the case that the RedCap terminal performs switching to a non-RedCap cell when switching from an LTE cell to a 5G cell, thereby causing switching failure, avoid the RedCap terminal repeating the switching process from the LTE cell to the 5G cell, and make the RedCap terminal switching from the LTE cell to the 5G cell more stable and fast.

[0091] In an embodiment of the present application, on the basis of the above-mentioned embodiment, after step S205, the process of judging whether to execute the switching decision according to the judgment result by the user terminal is further included, which is described in detail as follows:

[0092] S208: judging whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message to generate a judgment result for storage; sending a signal measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report; receiving the handover decision sent by the LTE base station, and judging whether to switch the network to the base station of the inter-system 5G neighbor cell according to the handover decision and the judgment result; if the judgment result is that the inter-system 5G neighbor cell supports the RedCap mode, switching the network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if the judgment result is that the inter-system 5G neighbor cell does not support the RedCap mode, marking the inter-system 5G neighbor cell as not supporting the RedCap mode, and refusing to execute the handover decision.

[0093] Specifically, the system message is parsed to obtain the remaining minimum system information SIB1 of the inter-system 5G neighbor cell; and whether the inter-system 5G neighbor cell allows RedCap terminals to access is judged according to the SIB1.

[0094] Illustratively, the MIB of the 5G base station of the inter-system 5G neighbor cell is parsed to obtain a parameter capable of identifying the SIB1 (System Information Block 1, remaining minimum system information), the SIB is parsed according to the parameter to obtain the SIB1 of the 5G base station of the inter-system 5G neighbor cell.

[0095] Specifically, each field in the SIB1 is parsed, and parameter information for evaluating whether the terminal is allowed to access the cell is identified and extracted from the multiple fields, and whether the inter-system 5G neighbor cell allows RedCap terminals to access is judged according to the parameter information.

[0096] The parameter information is:

[0097] cellBarredRedCap1Rx / cellBarredRedCap2Rx

[0098] halfDuplexRedCapAllowed

[0099] intraFreqReselectionRedCap

[0100] cellBarredRedCap-r17.

[0101] From the above description, in the present application, after it is determined that the signal measurement result meets the preset switching condition, the system message of the 5G base station of the different system 5G neighbor cell is read, it is judged whether the different system 5G neighbor cell supports the RedCap mode according to the system message, a judgment result is generated and saved; the signal measurement report is sent to the LTE base station, so that the LTE base station generates a switching decision according to the signal measurement report; the switching decision sent by the LTE base station is received, if the judgment result is that the different system 5G neighbor cell supports the RedCap mode, the network is switched to the 5G base station of the different system 5G neighbor cell according to the switching decision; if the judgment result is that the different system 5G neighbor cell does not support the RedCap mode, the different system 5G neighbor cell is marked as not supporting the RedCap mode, and the switching decision is refused to be executed; the situation that the RedCap terminal is switched from the LTE to the 5G cell and then is switched to the non-RedCap cell is avoided, so that the situation that the switching fails is avoided, the RedCap terminal is repeatedly switched from the LTE to the 5G cell, and the switching of the RedCap terminal from the LTE to the 5G cell is more stable and fast.

[0102] In an embodiment of the present application, on the basis of the above-mentioned embodiment, in step S203 or S204, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report, and the specific process is described as follows:

[0103] S2041: signal measurement is performed on the different system 5G neighbor cell according to the signal measurement indication to obtain a first signal measurement result.

[0104] Specifically, the measurement requirements in the signal measurement indication are analyzed, and the wireless channel of the different system 5G neighbor cell is measured according to the measurement control related configuration.

[0105] S2042: a B1 event measurement report is generated according to the first signal measurement result.

[0106] In the present embodiment, the B1 event measurement report includes the first signal measurement result and at least one of the following: the signal strength and quality of the different system 5G neighbor cell, the signal coverage range of the different system 5G neighbor cell, and the transmit power of the user terminal.

[0107] Correspondingly, the preset switching condition in step S205 includes a preset B1 event switching condition, wherein the B1 event switching condition is that the first signal measurement result is higher than a preset first threshold.

[0108] In an embodiment, if the B1 event measurement report does not meet the B1 event switching condition, the cell switching task is interrupted.

[0109] Correspondingly, S206 specifically includes: sending the B1 event measurement report to the LTE base station, so that the LTE base station generates a switching decision according to the B1 event measurement report; or.

[0110] Correspondingly, S207 specifically includes: if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generating a handover indication, and sending the B1 event measurement report to the LTE base station.

[0111] The B1 event measurement report carries the handover indication.

[0112] In an embodiment of the present application, for the signal measurement in step S203 or S204, another implementation manner is provided according to the signal measurement indication, which is described as follows:

[0113] S2043: performing signal measurement on the inter-system 5G neighbor cell and the LTE cell respectively according to the signal measurement indication to obtain a first signal measurement result and a second signal measurement result.

[0114] Specifically, the measurement requirement in the signal measurement indication is analyzed, and the wireless channel of the inter-system 5G neighbor cell and the LTE cell is measured respectively according to the measurement control related configuration.

[0115] S2044: generating a B2 event measurement report according to the first signal measurement result and the second signal measurement result.

[0116] In the embodiment, the B2 event measurement report includes the first signal measurement result, the second signal measurement result, and at least one of the following: the signal strength and quality of the LTE cell, the signal strength and quality of the inter-system 5G neighbor cell, the signal coverage of the inter-system 5G neighbor cell, and the transmit power of the user terminal.

[0117] Correspondingly, the preset handover condition in step S205 includes a preset B2 event handover condition, wherein the B2 event handover condition is that the first signal measurement result is higher than a preset first threshold value, and the second signal measurement result is lower than a preset second threshold value.

[0118] In an embodiment, if the B2 event measurement report does not satisfy the B2 event handover condition, the cell handover task is interrupted.

[0119] Correspondingly, S206 specifically includes: sending the B2 event measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the B2 event measurement report; or.

[0120] Correspondingly, S207 specifically includes: if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generating a handover indication, and sending the B2 event measurement report to the LTE base station.

[0121] The B2 event measurement report carries the handover indication.

[0122] One embodiment of the present application also provides a cell switching method. The execution subject of the embodiment is an LTE base station as shown in the figure Figure 1 The method comprises the following steps.

[0123] S301: When any user terminal is perceived to move from an LTE cell to a 5G neighbor cell of a different system, a signal measurement instruction is sent to the user terminal to enable the user terminal to determine whether the 5G neighbor cell of the different system has a target mode identifier, wherein the target mode identifier is an identifier indicating that the 5G neighbor cell of the different system does not support the RedCap mode. If it is determined that the 5G neighbor cell of the different system has the target mode identifier, the duration of the existence of the target mode identifier is obtained. If it is determined that the duration of the existence exceeds a preset duration, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report. If it is determined that the 5G neighbor cell of the different system does not have the target mode identifier, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report. If it is determined that the signal measurement report meets a preset switching condition, the system message of the 5G base station of the 5G neighbor cell of the different system is read, and it is determined whether the 5G neighbor cell of the different system supports the RedCap mode according to the system message.

[0124] S302: The signal measurement report sent by the user terminal after determining that the 5G neighbor cell of the different system supports the RedCap mode according to the system message is received. A switching decision is generated according to the signal measurement report and is sent to the user terminal to enable the user terminal to switch the network to the 5G base station of the 5G neighbor cell of the different system according to the switching decision.

[0125] S303: The signal measurement report sent by the user terminal is received, wherein the signal measurement report carries a switching instruction, and the switching instruction is generated by the user terminal after determining that the 5G neighbor cell of the different system supports the RedCap mode. A switching decision is generated according to the signal measurement report and the switching instruction, and the switching decision is sent to the user terminal to enable the user terminal to switch the network to the base station of the 5G neighbor cell of the different system according to the switching decision. The signal measurement report sent by the user terminal is received, wherein the signal measurement report carries an interrupt switching instruction, and the interrupt switching instruction is generated by the user terminal after determining that the 5G neighbor cell of the different system does not support the RedCap mode. The switching task is interrupted according to the signal measurement report.

[0126] As can be seen from the above description, the present application sends a signal measurement instruction to a user terminal. After receiving the signal measurement report sent by the user terminal after determining that the 5G neighbor cell of the different system supports the RedCap mode according to the system message, a switching decision is generated according to the signal measurement report and is sent to the user terminal. This avoids the situation that the RedCap terminal switches from an LTE cell to a 5G cell and then switches to a non-RedCap cell, thereby causing the switching to fail. This makes the switching of the RedCap terminal from the LTE cell to the 5G cell more stable.

[0127] In an embodiment of the present application, on the basis of the above-mentioned embodiment, after step S301, the process of judging whether to perform the handover decision by the user terminal according to the judgment result is further included, which is described in detail as follows:

[0128] S304: receiving the signal measurement report sent by the user terminal; generating a handover decision according to the signal measurement report, and sending the handover decision to the user terminal, so that the user terminal judges whether to switch the network to the base station of the heterogeneous system 5G neighbor cell according to the handover decision and the judgment result, wherein the judgment result is generated after the user terminal judges whether the heterogeneous system 5G neighbor cell supports the RedCap mode according to the system message.

[0129] Figure 3 The structural schematic diagram of the cell handover device provided for an embodiment of the present application is shown in FIG. 3. As shown in FIG. 3, the cell handover device 30 includes a receiving module 301, a first judgment module 302, a first measurement module 303, a second measurement module 304, a second judgment module 305, and a handover module 306. Figure 3

[0130] The receiving module 301 is configured to receive the signal measurement indication sent by the LTE base station, wherein the signal measurement indication is sent by the LTE base station of the LTE cell when the user terminal is perceived to move from the LTE cell to a heterogeneous system 5G neighbor cell.

[0131] The first judgment module 302 is configured to judge whether the heterogeneous system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the heterogeneous system 5G neighbor cell does not support the RedCap mode.

[0132] The first measurement module 303 is configured to, if it is judged that the heterogeneous system 5G neighbor cell has the target mode identifier, acquire the existing duration of the target mode identifier; and if it is judged that the existing duration exceeds a preset duration, perform signal measurement according to the signal measurement indication to obtain a signal measurement report.

[0133] The second measurement module 304 is configured to, if it is judged that the heterogeneous system 5G neighbor cell does not have the target mode identifier, perform signal measurement according to the signal measurement indication to obtain a signal measurement report.

[0134] The second judgment module 305 is configured to, if it is judged that the signal measurement report meets a preset handover condition, read the system message of the 5G base station of the heterogeneous system 5G neighbor cell.

[0135] ​The switching module 306 is configured to determine whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, the signal measurement report is sent to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; the handover decision sent by the LTE base station is received, and network is switched to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, the signal measurement report is not sent to the LTE base station, and the inter-system 5G neighbor cell is marked as not supporting the RedCap mode; or,

[0136] The switching module 306 is configured to determine whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, the signal measurement report is sent to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; the handover decision sent by the LTE base station is received, and network is switched to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode, and a handover interruption indication is generated, and the signal measurement report is sent to the LTE base station, wherein the signal measurement report carries the handover interruption indication, so that the LTE base station interrupts the handover task according to the signal measurement report.

[0137] In a possible design, the switching module 306 is further configured to: determine whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message, to generate a judgment result and save the judgment result; send the signal measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; receive the handover decision sent by the LTE base station, and determine whether to switch network to the base station of the inter-system 5G neighbor cell according to the handover decision and the judgment result; if the judgment result is that the inter-system 5G neighbor cell supports the RedCap mode, network is switched to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if the judgment result is that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode, and the handover decision is refused to be executed.

[0138] In a possible design, the first measurement module 303 is specifically configured to: perform signal measurement on the inter-system 5G neighbor cell according to the signal measurement indication to obtain a first signal measurement result; and generate a B1 event measurement report according to the first signal measurement result. The preset handover condition includes a preset B1 event handover condition, where the B1 event handover condition is that the first signal measurement result is higher than a preset first threshold. The handover module 306 is specifically configured to: send the B1 event measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the B1 event measurement report; or if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generate a handover indication and send the B1 event measurement report to the LTE base station.

[0139] In a possible design, the first measurement module 303 is specifically configured to: perform signal measurement on the inter-system 5G neighbor cell and the LTE cell respectively according to the signal measurement indication to obtain a first signal measurement result and a second signal measurement result; and generate a B2 event measurement report according to the first signal measurement result and the second signal measurement result. The preset handover condition includes a preset B2 event handover condition, where the B2 event handover condition is that the first signal measurement result is higher than a preset first threshold and the second signal measurement result is lower than a preset second threshold. The handover module 306 is specifically configured to: send the B2 event measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the B2 event measurement report; or if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generate a handover indication and send the B2 event measurement report to the LTE base station.

[0140] In a possible design, the handover module 306 is specifically configured to: parse the system message to obtain remaining minimum system information SIB1 of the inter-system 5G neighbor cell; and determine whether the inter-system 5G neighbor cell allows RedCap terminals to access according to the SIB1.

[0141] The apparatus provided in this embodiment can be used to execute the technical solutions of the method embodiments, and has similar implementation principles and technical effects, which will not be repeated here.

[0142] Figure 4 A structural schematic diagram of a cell handover apparatus provided for another embodiment of the present application is shown in FIG. 4. As shown in FIG. 4, the cell handover apparatus 40 includes a sending module 401 and a receiving module 402. Figure 4

[0143] ​The sending module 401 is configured to send a signal measurement instruction to any user terminal when it is perceived that the user terminal moves from an LTE cell to a 5G inter-system neighbor cell, so that the user terminal determines whether the 5G inter-system neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the 5G inter-system neighbor cell does not support the RedCap mode; if it is determined that the 5G inter-system neighbor cell has the target mode identifier, the duration of the existence of the target mode identifier is obtained; if it is determined that the duration of the existence exceeds a preset duration, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report; if it is determined that the 5G inter-system neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement instruction to obtain a signal measurement report; if it is determined that the signal measurement report meets a preset handover condition, the system message of a 5G base station of the 5G inter-system neighbor cell is read, and it is determined whether the 5G inter-system neighbor cell supports the RedCap mode according to the system message;

[0144] The receiving module 402 is configured to receive the signal measurement report sent by the user terminal after it is determined that the 5G inter-system neighbor cell supports the RedCap mode according to the system message; a handover decision is generated according to the signal measurement report, and the handover decision is sent to the user terminal, so that the user terminal switches the network to the 5G base station of the 5G inter-system neighbor cell according to the handover decision; or,

[0145] The receiving module 402 is configured to receive the signal measurement report sent by the user terminal after it is determined that the 5G inter-system neighbor cell supports the RedCap mode according to the system message; a handover decision is generated according to the signal measurement report, and the handover decision is sent to the user terminal, so that the user terminal switches the network to the 5G base station of the 5G inter-system neighbor cell according to the handover decision; or,

[0146] In a possible design, the receiving module 402 is further configured to receive the signal measurement report sent by the user terminal; a handover decision is generated according to the signal measurement report, and the handover decision is sent to the user terminal, so that the user terminal determines whether to switch the network to the base station of the 5G inter-system neighbor cell according to the handover decision and a judgment result, wherein the judgment result is generated by the user terminal after it determines whether the 5G inter-system neighbor cell supports the RedCap mode according to the system message.

[0147] The device provided by the embodiment can be used to execute the technical solutions of the method embodiments, and has similar implementation principles and technical effects. Details are not described herein again.

[0148] Figure 5 A hardware structure schematic diagram of a terminal device provided by the embodiment is shown in the figure. Figure 5 As shown in the figure, the terminal device 50 of the embodiment includes at least one processor 501 and a memory 502; the memory stores computer execution instructions; the at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell switching method as above.

[0149] Optionally, the memory 502 can be independent or integrated with the processor 501.

[0150] When the memory 502 is independently arranged, the terminal device further includes a bus 503 for connecting the memory 502 and the processor 501.

[0151] Figure 6 A hardware structure schematic diagram of a base station device provided by the embodiment is shown in the figure. Figure 6 As shown in the figure, the base station device 60 of the embodiment includes at least one processor 601 and a memory 602; the memory stores computer execution instructions; the at least one processor executes the computer execution instructions stored in the memory, so that the at least one processor executes the cell switching method as above.

[0152] Optionally, the memory 602 can be independent or integrated with the processor 601.

[0153] When the memory 602 is independently arranged, the base station device further includes a bus 603 for connecting the memory 602 and the processor 601.

[0154] The embodiment of the application further provides a computer readable storage medium, which stores computer execution instructions, and when the processor executes the computer execution instructions, the cell switching method as above is implemented.

[0155] The embodiment of the application further provides a computer program product, which includes a computer program, and when the processor executes the computer program, the cell switching method as above is implemented.

[0156] It should be noted that, for the foregoing method embodiments, the sequences of the described actions are merely illustrative, and the present application is not limited to the sequences of the described actions. In some embodiments, the sequences of the described actions can be changed or reordered. In some embodiments, some of the actions can be performed simultaneously. In some embodiments, some of the actions can be omitted, or other actions can be added.

[0157] It should be noted that, in the flowcharts disclosed in the present application, each step is shown in sequence according to the direction of the arrow, but these steps are not necessarily executed in the order of the arrow direction. Unless otherwise specified in the present application, the execution of these steps is not limited in strict order, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily sequential, but can be performed in rotation or alternation with other steps or sub-steps or stages of other steps.

[0158] It should be understood that the above-described device embodiments are only illustrative, and the device of the present application can also be implemented in other ways. For example, the division of units / modules in the above-described embodiments is only a logical functional division, and actual implementation can have another division manner. For example, multiple units / modules or components can be combined, or can be integrated into another system, or some features can be omitted or not executed.

[0159] In addition, unless otherwise specified, each functional unit / module in each embodiment of the present application can be integrated in one unit / module, or each unit / module can exist physically, or two or more units / modules can be integrated together. The integrated unit / module can be realized in the form of hardware or in the form of a software program module.

[0160] If the integrated units / modules are implemented in the form of hardware, the hardware can be a digital circuit, an analog circuit, etc. The physical implementation of the hardware structure includes, but is not limited to, transistors, memristors, etc. Unless otherwise specified, the processor can be any appropriate hardware processor, such as a CPU, a GPU, an FPGA, a DSP, an ASIC, etc. Unless otherwise specified, the storage unit can be any appropriate magnetic storage medium or magneto-optical storage medium, such as resistive random access memory (RRAM), dynamic random access memory (DRAM), static random access memory (SRAM), enhanced dynamic random access memory (EDRAM), high-bandwidth memory (HBM), hybrid memory cube (HMC), etc.

[0161] If the integrated units / modules are implemented in the form of software program modules and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the essential part or all or part of the technical solutions that make contributions to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0162] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0163] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0164] It is to be understood that the application is not limited to the precise construction herein described and as shown in the attached drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is to be indicated by the appended claims, rather than the description and examples.

Claims

1. A cell handover method, characterized by, The application is applied to a user terminal, comprising: receiving a signal measurement indication sent by an LTE base station, wherein the signal measurement indication is sent by an LTE base station of an LTE cell when the LTE base station senses that the user terminal moves from the LTE cell to a 5G adjacent cell of a different system; determining whether the 5G adjacent cell of the different system has a target mode identifier, wherein the target mode identifier is an identifier indicating that the 5G adjacent cell of the different system does not support a RedCap mode; if it is determined that the 5G adjacent cell of the different system has the target mode identifier, obtaining a duration of existence of the target mode identifier; if it is determined that the duration of existence exceeds a preset duration, performing signal measurement according to the signal measurement indication to obtain a signal measurement report; if it is determined that the 5G adjacent cell of the different system does not have the target mode identifier, performing signal measurement according to the signal measurement indication to obtain a signal measurement report; if it is determined that the signal measurement report meets a preset handover condition, reading a system message of a 5G base station of the 5G adjacent cell of the different system; determining whether the 5G adjacent cell of the different system supports the RedCap mode according to the system message; if it is determined that the 5G adjacent cell of the different system supports the RedCap mode, sending the signal measurement report to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report; receiving the handover decision sent by the LTE base station, and switching a network to the 5G base station of the 5G adjacent cell of the different system according to the handover decision; if it is determined that the 5G adjacent cell of the different system does not support the RedCap mode, not sending the signal measurement report to the LTE base station, and marking the 5G adjacent cell of the different system as not supporting the RedCap mode; or determining whether the 5G adjacent cell of the different system supports the RedCap mode according to the system message; if it is determined that the 5G adjacent cell of the different system supports the RedCap mode, generating a handover indication, and sending the signal measurement report to the LTE base station, wherein the signal measurement report carries the handover indication to enable the LTE base station to generate a handover decision according to the signal measurement report and the handover indication; receiving the handover decision sent by the LTE base station, and switching the network to the base station of the 5G adjacent cell of the different system according to the handover decision; if it is determined that the 5G adjacent cell of the different system does not support the RedCap mode, marking the 5G adjacent cell of the different system as not supporting the RedCap mode, generating an interrupted handover indication, and sending the signal measurement report to the LTE base station, wherein the signal measurement report carries the interrupted handover indication to enable the LTE base station to interrupt a handover task according to the signal measurement report.

2. The method of claim 1, wherein, The method further comprises the following steps after the step of reading the system message of the 5G base station of the 5G adjacent cell of the different system: According to the system message, it is judged whether the RedCap mode is supported by the inter-system 5G neighbor cell to generate a judgment result for storage; the signal measurement report is sent to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report; the handover decision sent by the LTE base station is received, and it is judged whether the network is switched to the base station of the inter-system 5G neighbor cell according to the handover decision and the judgment result; if the judgment result is that the inter-system 5G neighbor cell supports the RedCap mode, the network is switched to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if the judgment result is that the inter-system 5G neighbor cell does not support the RedCap mode, the inter-system 5G neighbor cell is marked as not supporting the RedCap mode, and the handover decision is refused to be executed.

3. The method of claim 1, wherein, According to the signal measurement indication, signal measurement is performed, and a signal measurement result is obtained, including: According to the signal measurement indication, signal measurement is performed, and a signal measurement result is obtained, including: According to the signal measurement indication, signal measurement is performed, and a signal measurement result is obtained, including: According to the first signal measurement result, a B1 event measurement report is generated; Accordingly, the preset handover condition includes a preset B1 event handover condition, wherein the B1 event handover condition is that the first signal measurement result is higher than a preset first threshold value; Accordingly, the signal measurement report is sent to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report, including: the B1 event measurement report is sent to the LTE base station to enable the LTE base station to generate a handover decision according to the B1 event measurement report; or, 4. The method of claim 1, wherein, Accordingly, if it is judged that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and the signal measurement report is sent to the LTE base station, including: if it is judged that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and the B1 event measurement report is sent to the LTE base station. According to the signal measurement indication, signal measurement is performed, and a signal measurement result is obtained, including: According to the signal measurement indication, signal measurement is performed, and a signal measurement result is obtained, including: According to the first signal measurement result and the second signal measurement result, a B2 event measurement report is generated; Accordingly, the preset handover condition includes a preset B2 event handover condition, wherein the B2 event handover condition is that the first signal measurement result is higher than a preset first threshold value, and the second signal measurement result is lower than a preset second threshold value; Accordingly, the signal measurement report is sent to the LTE base station to enable the LTE base station to generate a handover decision according to the signal measurement report, including: the B2 event measurement report is sent to the LTE base station to enable the LTE base station to generate a handover decision according to the B2 event measurement report; or, Correspondingly, if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and the signal measurement report is sent to the LTE base station, including: if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, a handover indication is generated, and the B2 event measurement report is sent to the LTE base station.

5. The method according to any one of claims 1 to 4, characterized in that, The determination of whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message includes: The system message is parsed to obtain the remaining minimum system information SIB1 of the inter-system 5G neighbor cell; The determination of whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message includes:

6. A cell handover method, characterized by, Applied to the LTE base station, including: When any user terminal is perceived to move from an LTE cell to an inter-system 5G neighbor cell, a signal measurement indication is sent to the user terminal to enable the user terminal to determine whether the inter-system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the inter-system 5G neighbor cell does not support the RedCap mode, if it is determined that the inter-system 5G neighbor cell has the target mode identifier, the duration of the existence of the target mode identifier is obtained, if it is determined that the duration of the existence exceeds a preset duration, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report, if it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report, if it is determined that the signal measurement report meets a preset handover condition, the system message of the 5G base station of the inter-system 5G neighbor cell is read, and it is determined whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; The signal measurement report sent by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode according to the system message is received; a handover decision is generated according to the signal measurement report and is sent to the user terminal to enable the user terminal to hand over the network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; or, The signal measurement report sent by the user terminal is received, wherein the signal measurement report carries a handover indication, wherein the handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode; a handover decision is generated according to the signal measurement report and the handover indication, and the handover decision is sent to the user terminal to enable the user terminal to hand over the network to the base station of the inter-system 5G neighbor cell according to the handover decision; the signal measurement report sent by the user terminal is received, wherein the signal measurement report carries an interrupted handover indication, wherein the interrupted handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell does not support the RedCap mode; the handover task is interrupted according to the signal measurement report.

7. The method of claim 6, wherein, After the signal measurement indication is sent to the user terminal when any user terminal is perceived to move from an LTE cell to an inter-system 5G neighbor cell, the method further includes: The base station receives the signal measurement report sent by the user terminal, generates a handover decision according to the signal measurement report, and sends the handover decision to the user terminal, so that the user terminal determines whether to switch the network to the base station of the inter-system 5G neighbor cell according to the handover decision and a determination result, wherein the determination result is generated after the user terminal determines whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message.

8. A cell handover apparatus, characterized by comprising: The application is applied to a user terminal, comprising: A receiving module is configured to receive a signal measurement indication sent by an LTE base station, wherein the signal measurement indication is sent by an LTE base station of an LTE cell when the LTE base station senses that a user terminal moves from the LTE cell to an inter-system 5G neighbor cell; A first determining module is configured to determine whether the inter-system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the inter-system 5G neighbor cell does not support the RedCap mode; A first measuring module is configured to, if it is determined that the inter-system 5G neighbor cell has the target mode identifier, acquire a duration of existence of the target mode identifier; and if it is determined that the duration of existence exceeds a preset duration, perform signal measurement according to the signal measurement indication to obtain a signal measurement report; A second measuring module is configured to, if it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, perform signal measurement according to the signal measurement indication to obtain a signal measurement report; A second determining module is configured to, if it is determined that the signal measurement report meets a preset handover condition, read a system message of a 5G base station of the inter-system 5G neighbor cell; A handover module is configured to determine whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, send the signal measurement report to the LTE base station, so that the LTE base station generates a handover decision according to the signal measurement report; receive the handover decision sent by the LTE base station, and switch the network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, do not send the signal measurement report to the LTE base station, and mark the inter-system 5G neighbor cell as not supporting the RedCap mode; or determining whether the inter-system 5G neighbor cell supports the RedCap mode according to the system message; if it is determined that the inter-system 5G neighbor cell supports the RedCap mode, generating a handover indication and sending the signal measurement report to the LTE base station, wherein the signal measurement report carries the handover indication, so that the LTE base station generates a handover decision according to the signal measurement report and the handover indication; receiving the handover decision sent by the LTE base station, and switching the network to the base station of the inter-system 5G neighbor cell according to the handover decision; if it is determined that the inter-system 5G neighbor cell does not support the RedCap mode, marking the inter-system 5G neighbor cell as not supporting the RedCap mode, generating an interrupt handover indication, and sending the signal measurement report to the LTE base station, wherein the signal measurement report carries the interrupt handover indication, so that the LTE base station interrupts the handover task according to the signal measurement report.

9. A cell handover apparatus, characterized by comprising: The application is applied to an LTE base station, and comprises: a sending module, configured to send a signal measurement indication to a user terminal when any user terminal moves from an LTE cell to an inter-system 5G neighbor cell, so that the user terminal determines whether the inter-system 5G neighbor cell has a target mode identifier, wherein the target mode identifier is an identifier indicating that the inter-system 5G neighbor cell does not support the RedCap mode; if it is determined that the inter-system 5G neighbor cell has the target mode identifier, the existing duration of the target mode identifier is obtained; if it is determined that the existing duration exceeds a preset duration, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report; if it is determined that the inter-system 5G neighbor cell does not have the target mode identifier, signal measurement is performed according to the signal measurement indication to obtain a signal measurement report; if it is determined that the signal measurement report meets a preset handover condition, the system message of a 5G base station of the inter-system 5G neighbor cell is read, and whether the inter-system 5G neighbor cell supports the RedCap mode is determined according to the system message; a receiving module, configured to receive the signal measurement report sent by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode according to the system message; generate a handover decision according to the signal measurement report and send it to the user terminal, so that the user terminal switches the network to the 5G base station of the inter-system 5G neighbor cell according to the handover decision; or receiving the signal measurement report sent by the user terminal, wherein the signal measurement report carries a handover indication, wherein the handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell supports the RedCap mode; generating a handover decision according to the signal measurement report and the handover indication, and sending the handover decision to the user terminal, so that the user terminal switches the network to the base station of the inter-system 5G neighbor cell according to the handover decision; receiving the signal measurement report sent by the user terminal, wherein the signal measurement report carries an interrupted handover indication, wherein the interrupted handover indication is generated by the user terminal after determining that the inter-system 5G neighbor cell does not support the RedCap mode; interrupting the handover task according to the signal measurement report.

10. A terminal device, comprising: Comprising: a processor, and a memory connected to the processor in communication; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the cell handover method according to any one of claims 1 to 5.

11. A base station device, characterized by comprising: Comprising: a processor, and a memory connected to the processor in communication; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the cell handover method according to any one of claims 6 to 7.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by the processor to implement the cell handover method according to any one of claims 1 to 5.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by the processor to implement the cell handover method according to any one of claims 6 to 7.

Images