Wireless communication system and neighbor cell switching method

Abstract

The invention discloses a wireless communication system and a neighbor cell switching method. The system comprises a management and control center, and a plurality of base stations and a plurality of terminals which are networked, the types of the plurality of base stations comprise a first base station which opens 5G ultra-far coverage and a second base station which does not open 5G ultra-far coverage, and the management and control center is responsible for collecting base station information, constructing a base station group database and configuring a neighbor relation and a switching strategy; the base station receives a measurement report of the terminal, if the measurement report triggers a neighbor cell switching strategy, the base station ranks neighbor cell base stations according to communication quality and tries to switch to the best neighbor cell base station, and if the neighbor cell switching strategy fails, the base station continues to try until the best neighbor cell base station succeeds; when the switching fails, the base station reports the time advance to the management and control center; and the management and control center counts the time advance, and if the time advance exceeds a threshold value, the cell configuration radius is adjusted. According to the method and the device, the technical problem of switching failure caused by inconsistent access distance and cell radius configuration in a 5G ultra-far coverage cell group in a sea area and other scenes is solved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a wireless communication system and a neighboring cell switching method. Background Art

[0002] In the 5G independent networking mode, handover in mobility management is an important technology to ensure that user equipment does not drop offline during movement. When the terminal moves to the edge of the cell coverage, the signal quality of the current service cell deteriorates, while the signal quality of the neighboring cell is good, coverage-based handover will be triggered to prevent call interruption due to poor signal quality. However, in open areas such as sea areas, the existing 5G handover process may cause the terminal to still receive a good signal in places that are beyond the ideal coverage range due to ultra-long-distance coverage and slow signal attenuation, which may cause unnecessary handover attempts, especially after the random access message fails. In addition, in environments such as sea areas, 5G signals may be affected by reflection and scattering, resulting in unstable signal quality, making it difficult for existing handover solutions to effectively control and achieve smooth signal switching. These problems may cause call interruptions or reduced data connection quality, affecting user experience.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0004] The embodiments of the present application provide a wireless communication system and a neighboring cell switching method to at least solve the technical problem that switching failures are often caused by inconsistency between access distance and cell radius configuration in 5G ultra-long coverage cell groups in scenarios such as sea areas.

[0005] According to one aspect of an embodiment of the present application, a wireless communication system is provided, including: a control center, a plurality of networked base stations and a plurality of terminals, wherein the types of the plurality of base stations include: a first base station with 5G ultra-long-distance coverage enabled and a second base station without 5G ultra-long-distance coverage enabled, wherein the control center is used to obtain base station information of a plurality of base stations in a target area selected by a target object, build a base station group database based on the base station information, and configure a neighboring cell relationship and a neighboring cell switching strategy for each base station; each base station is used to obtain measurement reports reported by each terminal accessing the base station; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the neighboring cell switching strategy of the base station corresponding to the base station is triggered according to the measurement report of the terminal Each neighboring base station is sorted from high to low according to the communication quality, and an attempt is made to switch the terminal to the neighboring base station with the highest communication quality based on the sorting result. If the switching fails, an attempt is made to switch the terminal to the next neighboring base station in the sorting result until the switching is successful; wherein, each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance; the control center is also used to count the total number of time advances reported by each base station; for each base station, if the total number of time advances reported by the base station exceeds a preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station.

[0006] Optionally, the control center is used to obtain base station information of multiple base stations in the target area selected by the target object, wherein the base station information includes at least: base station number, physical cell identifier, 5G ultra-long coverage attribute, and cell configuration radius; multiple base stations are networked and a base station group database is constructed, wherein the base station group database includes a sub-database corresponding to each base station, and the sub-database includes: base station information of the base station, each time advance reported by the base station, and the total number of reported time advances.

[0007] Optionally, the control center is also used to turn off the automatic neighbor relationship function of multiple base stations; for each target first base station, each other first base station is configured as a neighboring cell of the target first base station in turn, and a neighboring cell switching strategy based on the A3 event is configured, and each second base station is configured as a neighboring cell of the target first base station in turn, and a neighboring cell switching strategy based on a combination of A3 events and A5 events is configured, wherein the target first base station is any first base station among the multiple first base stations; for each target second base station, each first base station is configured as a neighboring cell of the target second base station in turn, and a neighboring cell switching strategy based on a combination of A3 events and A5 events is configured, and other second base stations adjacent to the coverage area of ​​the target second base station are configured as neighboring cells of the target second base station in turn, and a neighboring cell switching strategy based on the A3 event is configured, wherein the target second base station is any second base station among the multiple second base stations.

[0008] Optionally, the control center is also used to test the communication status of the terminal in the target area; if there is a communication abnormality problem caused by cell coverage, a first prompt message is sent to the target object, wherein the first prompt message is used to prompt the need to reselect multiple base stations for networking; if there is a communication abnormality problem caused by data transmission rate, a second prompt message is sent to the target object, wherein the second prompt message is used to prompt the need to adjust the data transmission configuration parameters of each base station in the current networking.

[0009] Optionally, each base station is used to obtain measurement reports reported by each terminal accessing the base station, wherein the measurement report includes: signal quality parameters and time advance of each neighboring base station measured by the terminal, wherein the type of signal quality parameters includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio; for each terminal, the communication quality of each neighboring base station corresponding to the neighboring cell relationship of the base station is determined based on the measurement report of the terminal.

[0010] Optionally, when the source base station attempts to switch the terminal to the target neighboring base station, the source base station is configured to send a switching request message to the target neighboring base station and receive a switching request confirmation message fed back by the target neighboring base station; send a wireless resource control reconfiguration message to the terminal; the terminal is configured to respond to the wireless resource control reconfiguration message and send a random access request message to the target neighboring base station; if the random access is successful, send a wireless resource control reconfiguration completion message to the target neighboring base station; the target neighboring base station is configured to respond to the wireless resource control reconfiguration completion message, send a path switching request message to the access and mobility management function network element, and receive a Path switching confirmation message, sending a terminal context release message to the source base station; in the case of terminal random access failure, sending a failure notification message to the source base station, and determining the access distance between the terminal and the target neighboring base station based on the time advance reported when the terminal requests access to the target neighboring base station. If the access distance is greater than the cell configuration radius of the target neighboring base station, report the time advance to the control center; the control center is used to add the time advance to the sub-database corresponding to the target neighboring base station in the base station group database, and increase the total number of time advances reported in the sub-database by one; the source base station is used to respond to the failure notification message and continue to try to switch the terminal to the next target neighboring base station.

[0011] Optionally, the control center is used to determine the access distance corresponding to each time advance reported by any base station and determine the average value of multiple access distances when the total number of time advances reported by any base station exceeds a preset threshold; if the average value is greater than the preset maximum cell radius corresponding to the base station, the cell configuration radius of the base station is adjusted to the preset maximum cell radius; if the average value is not greater than the preset maximum cell radius, the cell configuration radius of the base station is adjusted to the average value.

[0012] According to another aspect of an embodiment of the present application, a neighbor cell switching method is also provided, which is applied to a control center, including: obtaining base station information of multiple base stations in a target area selected by a target object, building a base station group database based on the base station information, and configuring neighbor cell relations and neighbor cell switching strategies for each base station; wherein the types of the multiple base stations include: a first base station with 5G ultra-long-distance coverage enabled and a second base station with 5G ultra-long-distance coverage not enabled; each base station is used to obtain measurement reports reported by each terminal accessing the base station, and for each terminal, if the measurement report of the terminal triggers the neighbor cell switching strategy of the base station, each neighbor cell switching strategy corresponding to the base station is performed based on the measurement report of the terminal. The base stations in the area are sorted from high to low according to the communication quality, and an attempt is made to switch the terminal to the neighboring base station with the highest communication quality according to the sorting result. If the switching fails, an attempt is made to switch the terminal to the next neighboring base station in the sorting result until the switching is successful; each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance; the total number of time advances reported by each base station is counted, and for each base station, if the total number of time advances reported by the base station exceeds the preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station.

[0013] According to another aspect of an embodiment of the present application, a neighboring cell switching method is also provided, which is applied to a base station, including: obtaining measurement reports reported by each terminal accessing the base station, wherein the type of base station includes: a first base station with 5G ultra-long coverage enabled or a second base station with 5G ultra-long coverage not enabled; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, sorting the neighboring cell base stations corresponding to the base station from high to low according to the communication quality based on the measurement report of the terminal; attempting to switch the terminal to the neighboring cell base station with the highest communication quality based on the sorting result, and if the switching fails, attempting to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; wherein each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching failed to the control center when the switching fails due to the access distance; the control center is used to adjust the cell configuration radius of each base station based on multiple time advances reported by each base station.

[0014] According to another aspect of an embodiment of the present application, an electronic device is further provided, comprising: a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to execute the above-mentioned neighboring cell switching method through the computer program.

[0015] In an embodiment of the present application, a control center, multiple base stations and multiple terminals are networked, and the types of the multiple base stations include: a first base station with 5G ultra-long-distance coverage and a second base station without 5G ultra-long-distance coverage, wherein the control center is used to obtain base station information of multiple base stations in a target area selected by a target object, build a base station group database based on the base station information, and configure neighboring cell relations and neighboring cell switching strategies for each base station; each base station is used to obtain measurement reports reported by each terminal accessing the base station; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, each neighboring cell base station corresponding to the base station is switched according to the communication The quality is sorted from high to low, and the terminal is tried to be switched to the neighboring base station with the highest communication quality according to the sorting result. If the switching fails, the terminal is tried to be switched to the next neighboring base station in the sorting result until the switching is successful; wherein, each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance; the control center is also used to count the total number of time advances reported by each base station; for each base station, if the total number of time advances reported by the base station exceeds the preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station. In this way, the success rate of terminal switching between base stations can be improved by using precise neighboring relationship management and dynamic switching strategies. The intelligent analysis and adjustment of the control center helps to optimize network coverage, especially in ultra-long coverage areas, to ensure that the signal coverage is neither excessive nor insufficient, thereby solving the technical problem of switching failure in 5G ultra-long coverage cell groups in scenarios such as sea areas due to inconsistency between access distance and cell radius configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the structure of an optional wireless communication system according to an embodiment of the present application;

[0018] Figure 2 It is a flowchart of an optional method for planning a cell group of multiple base stations according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a neighboring cell relationship of multiple base stations according to an optional embodiment of the present application;

[0020] Figure 4 This is an optional schematic diagram of iterative optimization of the cell radius and timing advance of each base station according to an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of an optional process of successfully randomly accessing a neighboring cell base station 2 after a terminal fails to randomly access a neighboring cell base station 1 according to an embodiment of the present application;

[0022] Figure 6 is a flow chart of an optional neighboring cell switching method according to an embodiment of the present application;

[0023] Figure 7 is a flowchart of another optional neighboring cell switching method according to an embodiment of the present application;

[0024] Figure 8 It is a schematic diagram of the structure of an optional electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In order to better understand the embodiments of the present application, some nouns or terms that appear in the description of the embodiments of the present application are first translated and explained as follows:

[0028] Timing Advance (TA): An important parameter in 5G networks. The base station measures the offset between the received signal and the expected arrival time, then calculates the required timing advance and instructs the terminal to adjust the advance time of its uplink transmission, which helps to keep all terminal transmissions in the cell synchronized in time.

[0029] Automatic Neighbor Relation (ANR): A key technology used to optimize network performance and reduce the need for manual configuration. It allows a base station to automatically discover neighboring base stations with which it has interference or potential switching relationships. Through measurement reports reported by terminals, the base station can identify those neighboring base stations where terminals often report high signal strength. It allows the network to automatically discover and add neighboring cells, identify and delete mismatched or redundant neighboring cells, and optimize neighboring cell properties.

[0030] PCI (Physical Cell Identity): A parameter used to uniquely identify a cell. It is used to distinguish different cells, especially in dense networking, to ensure that user equipment can correctly identify and connect to the serving cell.

[0031] Reference Signal Received Power (RSRP): refers to the average value of the signal power received on all resource elements that carry reference signals within a symbol. It reflects the strength of the wireless signal between the terminal and the base station and is an important parameter for evaluating the quality of the wireless link. The larger the value of the reference signal received power, the better the signal coverage.

[0032] Reference Signal Received Quality (RSRQ): reflects the signal quality and is calculated by comparing the received reference signal power (RSRP) with the total interference plus noise power (RSSI). The larger the value of the reference signal received quality, the better the signal quality.

[0033] Signal-to-Noise Ratio (SNR): It indicates the ratio of the power of the useful signal to the power of the background noise.

[0034] Example 1

[0035] According to an embodiment of the present application, a wireless communication system is first provided, such as Figure 1 As shown, the system at least includes: a control center 11, multiple base stations and multiple terminals 13 (1-s) of the network, the multiple base stations include: a first base station 121 (1-m) with 5G ultra-long-distance coverage enabled and a second base station 122 (1-n) without 5G ultra-long-distance coverage enabled, wherein:

[0036] The control center 11 is used to obtain base station information of multiple base stations in the target area selected by the target object, build a base station group database based on the base station information, and configure neighboring cell relations and neighboring cell switching strategies for each base station;

[0037] Each base station is used to obtain the measurement reports reported by each terminal accessing the base station; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the neighboring cell base stations corresponding to the base station are sorted from high to low according to the communication quality based on the measurement report of the terminal, and the terminal is tried to be switched to the neighboring cell base station with the highest communication quality based on the sorting result. If the switching fails, the terminal is tried to be switched to the next neighboring cell base station in the sorting result until the switching is successful; wherein, each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance;

[0038] The control center 11 is also used to count the total number of time advances reported by each base station; for each base station, if the total number of time advances reported by the base station exceeds a preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station.

[0039] The functions of each part in the wireless communication system are described below in conjunction with a specific implementation process.

[0040] In order to overcome the challenges encountered in 5G network coverage in open areas such as sea areas, especially to solve the problem of switching failure caused by the mismatch between access distance and cell radius configuration, the embodiment of the present application utilizes a first base station with 5G ultra-long coverage and a second base station without 5G ultra-long coverage, as well as a control center to configure neighboring cell relations and switching strategies, thereby ensuring seamless connection and optimized network performance of the terminal during switching between cells.

[0041] First, in the target area selected by the target object, in order to enable the terminal to efficiently switch to the base station with the strongest signal, the control center obtains the base station information of multiple base stations in the target area selected by the target object, builds a base station group database based on the base station information, and configures neighboring cell relationships and neighboring cell switching strategies for each base station, wherein the base station information includes at least: base station number, physical cell identifier, 5G ultra-long coverage attribute, and cell configuration radius; then multiple base stations are networked and a base station group database is constructed, wherein the base station group database includes a sub-database corresponding to each base station, and the sub-database includes base station information of the base station, in particular, it also includes the time advance corresponding to the terminal and the neighboring cell base station where the switching fails and the total number of time advances reported to the control center when each neighboring cell base station where the switching fails due to the access distance.

[0042] Optionally, taking into account that the automatic neighbor cell relationship function may not be able to take into account all specific network conditions and business requirements, the control center is also used to turn off the automatic neighbor cell relationship function of multiple base stations; for each target first base station, the control center configures each other first base station as a neighbor cell of the target first base station in turn, and configures a neighbor cell switching strategy based on the A3 event, and configures each second base station as a neighbor cell of the target first base station in turn, and configures a neighbor cell switching strategy based on a combination of A3 events and A5 events, wherein the target first base station is any first base station among the multiple first base stations; for each target second base station, each first base station is configured as a neighbor cell of the target second base station in turn, and configures a neighbor cell switching strategy based on a combination of A3 events and A5 events, and configures other second base stations adjacent to the coverage area of ​​the target second base station as neighbor cells of the target second base station in turn, and configures a neighbor cell switching strategy based on the A3 event, wherein the target second base station is any second base station among the multiple second base stations.

[0043] Among them, the A3 event is an important measurement event in the 5G network, which is used to trigger switching between cells. The basic principle of the A3 event is that when the signal quality of the neighboring cell is higher than that of the serving cell by a preset offset (Offset), the switching will be triggered. This offset can be positive or negative, depending on the network configuration. The A5 event is also a measurement event used to trigger cell switching. The characteristic of the A5 event is that it combines the deterioration of the signal quality of the serving cell and the improvement of the signal quality of one or more neighboring cells. Specifically, the A5 event will be triggered when the signal quality of the serving cell is lower than a preset threshold value (Thresh1) and the signal quality of at least one neighboring cell is higher than another preset threshold value (Thresh2).

[0044] Optionally, the control center is also used to test the communication status of the terminal in the target area; if there is a communication abnormality problem caused by cell coverage, a first prompt message is sent to the target object, and the first prompt message is used to prompt the need to reselect multiple base stations in the network; if there is a communication abnormality problem caused by data transmission rate, a second prompt message is sent to the target object, and the second prompt message is used to prompt the need to adjust the data transmission configuration parameters of each base station in the current network.

[0045] Figure 2 A cell group planning method for multiple base stations is given, such as Figure 2As shown, the target object first selects the target area, selects the first base station with 5G ultra-long-distance coverage and the second base station without 5G ultra-long-distance coverage in the area, and the cell of each base station, and determines whether the coverage range of the cell meets the requirements. If not, the corresponding base station and cell with or without 5G ultra-long-distance coverage are selected again. If satisfied, for the first base station, each other is added as a neighboring cell, the automatic neighboring cell relationship function of multiple base stations is turned off, and the neighboring cell switching strategy based on the A3 event is configured. For the second base station, the neighboring cell is added according to the trajectory requirements, that is, the actual moving trajectory and behavior mode of the terminal, and the automatic neighboring cell relationship function of multiple base stations is turned off. System function, configure the neighboring cell switching strategy based on the A3 event, for the first base station and the second base station which are neighboring cells, configure the neighboring cell switching strategy based on the combination of the A3 event and the A5 event, and then test whether the communication status of the terminal in the target area reaches the expected effect. If there is a communication abnormality problem caused by the cell coverage, reselect the target area, that is, reselect multiple base stations in the network. If there is a communication abnormality problem caused by the data transmission rate, adjust the data transmission configuration parameters of each base station in the current network. After continuous selection and adjustment, the planning of the cell group of multiple base stations is finally completed.

[0046] For example, in Figure 3 In the neighbor cell relationship diagram of multiple base stations shown, gNB1, gNB2, gNB3, and gNB4 are base stations with 5G ultra-long coverage, and gNB5, gNB6, and gNB7 are base stations without 5G ultra-long coverage. Each base station serves one cell. For base stations with 5G ultra-long coverage, neighbor cell relationships are added, and gNB1, gNB2, gNB3, and gNB4 are neighbors of each other. The automatic neighbor cell relationship function is turned off, and the neighbor cell switching strategy for event A3 is configured; for base stations without 5G ultra-long coverage, base stations gNB5 and gNB6 configure neighbor cell relationships, set neighbor cell switching strategies for event A3, and switching relationships and strategies also need to be added between base stations with 5G ultra-long coverage and base stations without 5G ultra-long coverage, that is, base stations gNB1, gNB2, gNB3, and gNB4 and base stations gNB5, gNB6, and gNB7 configure switching relationships and neighbor cell switching strategies for events A3 and A5.

[0047] Optionally, each base station obtains measurement reports reported by each terminal accessing the base station, wherein the measurement report includes: signal quality parameters and time advance of each neighboring base station measured by the terminal, wherein the type of signal quality parameters includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio; for each terminal, the communication quality of each neighboring base station corresponding to the neighboring relationship of the base station is determined based on the measurement report of the terminal.

[0048] For each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the base station will sort the neighboring cell base stations corresponding to the base station from high to low according to the communication quality based on the measurement report of the terminal; then try to switch the terminal to the neighboring cell base station with the highest communication quality based on the sorting result. If the switching fails, try to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; among them, each neighboring cell base station where the switching fails reports the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance.

[0049] Likewise Figure 3 For example, when the terminal starts to move from the cell of gNB1, it reports a measurement report. gNB1 receives the measurement report reported by the terminal. The measurement report includes measurements of the signal quality of multiple neighboring base stations, such as the physical cell identifiers PCI5, PCI4, PCI2, PCI6, etc. corresponding to the base stations. gNB1 recommends the base station corresponding to PCI=5 as the neighboring base station with the highest communication quality.

[0050] As an optional implementation, in order to further iteratively optimize the cell radius and time advance of each base station, after the control center receives the time advance reported by any base station, the time advance is added to the sub-database corresponding to the base station in the base station group database, and the total number of time advances reported in the sub-database is increased by one, and the cell configuration radius of each base station is adjusted according to the multiple time advances reported by each base station. Specifically: when the total number of time advances reported by any base station exceeds a preset threshold, the access distances corresponding to each time advance reported by the base station are determined, and the average value of the multiple access distances is determined; if the average value is greater than the preset maximum cell radius corresponding to the base station, the cell configuration radius of the base station is adjusted to the preset maximum cell radius; if the average value is not greater than the preset maximum cell radius, the cell configuration radius of the base station is adjusted to the average value. The process of iterative optimization of the cell radius and time advance of each base station by the control center is as follows: Figure 4 shown.

[0051] Optionally, when attempting to switch the terminal to the target neighboring base station, the source base station sends a switching request message to the target neighboring base station, receives a switching request confirmation message fed back by the target neighboring base station, and then sends a wireless resource control reconfiguration message to the terminal; the terminal responds to the wireless resource control reconfiguration message and sends a random access request message to the target neighboring base station.

[0052] In the event of a random access failure, the target neighboring base station sends a failure notification message to the source base station, and determines the access distance between the terminal and the target neighboring base station based on the time advance reported when the terminal requests access to the target neighboring base station. If the access distance is greater than the cell configuration radius of the target neighboring base station, the time advance is reported to the control center; the control center adds the time advance to the sub-database corresponding to the target neighboring base station in the base station group database, and increases the total number of time advances reported in the sub-database by one; the source base station responds to the failure notification message and continues to try to switch the terminal to the next target neighboring base station; in the event of a successful random access, the terminal sends a wireless resource control reconfiguration completion message to the target neighboring base station; the target neighboring base station responds to the wireless resource control reconfiguration completion message, sends a path switching request message to the access and mobility management function network element, receives a path switching confirmation message fed back by the access and mobility management function network element, and then sends a terminal context release message to the source base station. Figure 5 A flowchart of a terminal successfully accessing a neighboring base station 2 after a terminal fails to randomly access the neighboring base station 1 is given, as shown in FIG. Figure 5 As shown, the process includes the following steps:

[0053] S1, the terminal sends a measurement report MeasurementReport to the source base station;

[0054] S2, the source base station sends a handover request message HandoverRequset to the neighboring base station 1;

[0055] S3, neighboring base station 1 sends a handover request confirmation message HandoverRequsetAck to the source base station;

[0056] S4, the source base station sends a radio resource control reconfiguration message RRC Reconfiguration to the terminal;

[0057] S5, the terminal sends a random access request message Random Access Request to neighboring base station 1;

[0058] S6, neighboring base station 1 sends a failure notification message Failure Notification to the source base station;

[0059] S7, the source base station sends a handover request message HandoverRequset to the neighboring base station 2;

[0060] S8, neighboring base station 2 sends a handover request confirmation message HandoverRequsetAck to the source base station;

[0061] S9, the source base station sends a radio resource control reconfiguration message RRC Reconfiguration to the terminal;

[0062] S10, the terminal sends a random access request message RandomAccess Procedure to the neighboring base station 2;

[0063] S11, the terminal sends a radio resource control reconfiguration completion message RRC ReconfigurationComplete to the neighboring base station 2;

[0064] S12, the neighboring base station 2 sends a path switch request message Path Switch Reques to the access and mobility management function network element;

[0065] S13, the access and mobility management function network element sends a path switch confirmation message PathSwitchAck to the neighboring base station 2;

[0066] S14, the neighboring base station 2 sends a terminal context release message UE Context Release to the source base station.

[0067] After receiving the terminal context release message, the source base station will release the wireless resources and control plane resources related to the terminal, the neighbor cell handover process is completed, and the terminal will transmit information through a base station with high communication quality.

[0068] In an embodiment of the present application, a control center, multiple base stations and multiple terminals are networked, and the types of the multiple base stations include: a first base station with 5G ultra-long-distance coverage and a second base station without 5G ultra-long-distance coverage, wherein the control center is used to obtain base station information of multiple base stations in a target area selected by a target object, build a base station group database based on the base station information, and configure neighboring cell relations and neighboring cell switching strategies for each base station; each base station is used to obtain measurement reports reported by each terminal accessing the base station; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, each neighboring cell base station corresponding to the base station is switched according to the communication The quality is sorted from high to low, and the terminal is tried to be switched to the neighboring base station with the highest communication quality according to the sorting result. If the switching fails, the terminal is tried to be switched to the next neighboring base station in the sorting result until the switching is successful; wherein, each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance; the control center is also used to count the total number of time advances reported by each base station; for each base station, if the total number of time advances reported by the base station exceeds the preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station. In this way, the success rate of terminal switching between base stations can be improved by using precise neighboring relationship management and dynamic switching strategies. The intelligent analysis and adjustment of the control center helps to optimize network coverage, especially in ultra-long coverage areas, to ensure that the signal coverage is neither excessive nor insufficient, thereby solving the technical problem of switching failure in 5G ultra-long coverage cell groups in scenarios such as sea areas due to inconsistency between access distance and cell radius configuration.

[0069] Example 2

[0070] Based on the wireless communication system provided in Example 1, the embodiment of the present application also provides a neighboring cell switching method, which is applied to the control center. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0071] Figure 6 is a flow chart of a neighboring cell switching method provided according to an embodiment of the present application, such as Figure 5 As shown, the method comprises the following steps:

[0072] Step S602, obtaining the base station information of multiple base stations in the target area selected by the target object, building a base station group database based on the base station information, and configuring neighboring cell relations and neighboring cell switching strategies for each base station; wherein the types of the multiple base stations include: a first base station with 5G ultra-long coverage enabled and a second base station without 5G ultra-long coverage enabled; each base station is used to obtain measurement reports reported by each terminal accessing the base station, and for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, sorting the neighboring cell base stations corresponding to the base station from high to low according to the communication quality according to the measurement report of the terminal, and trying to switch the terminal to the neighboring cell base station with the highest communication quality according to the sorting result, and if the switching fails, trying to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance;

[0073] Step S604, counting the total number of timing advances reported by each base station, for each base station, if the total number of timing advances reported by the base station exceeds a preset threshold, adjusting the cell configuration radius of the base station according to the multiple timing advances reported by the base station.

[0074] The following describes each step of the neighboring cell switching method in conjunction with a specific implementation process.

[0075] In the target area selected by the target object, in order to enable the terminal to efficiently switch to the base station with the strongest signal, the control center obtains the base station information of multiple base stations in the target area selected by the target object, builds a base station group database based on the base station information, and configures neighboring cell relationships and neighboring cell switching strategies for each base station, wherein the base station information includes at least: base station number, physical cell identifier, 5G ultra-long coverage attribute, and cell configuration radius; then multiple base stations are networked and a base station group database is constructed, wherein the base station group database includes a sub-database corresponding to each base station, and the sub-database includes base station information of the base station, in particular, it also includes the time advance corresponding to the terminal and the neighboring cell base station where the switching failed, that is, the total number of time advances reported to the control center when each neighboring cell base station where the switching failed was caused by the access distance.

[0076] Optionally, taking into account that the automatic neighbor cell relationship function may not be able to take into account all specific network conditions and business requirements, the control center is also used to turn off the automatic neighbor cell relationship function of multiple base stations; for each target first base station, the control center configures each other first base station as a neighbor cell of the target first base station in turn, and configures a neighbor cell switching strategy based on the A3 event, and configures each second base station as a neighbor cell of the target first base station in turn, and configures a neighbor cell switching strategy based on a combination of A3 events and A5 events, wherein the target first base station is any first base station among the multiple first base stations; for each target second base station, each first base station is configured as a neighbor cell of the target second base station in turn, and configures a neighbor cell switching strategy based on a combination of A3 events and A5 events, and configures other second base stations adjacent to the coverage area of ​​the target second base station as neighbor cells of the target second base station in turn, and configures a neighbor cell switching strategy based on the A3 event, wherein the target second base station is any second base station among the multiple second base stations.

[0077] Among them, the A3 event is an important measurement event in the 5G network, which is used to trigger switching between cells. The basic principle of the A3 event is that when the signal quality of the neighboring cell is higher than that of the serving cell by a preset offset (Offset), the switching will be triggered. This offset can be positive or negative, depending on the network configuration. The A5 event is also a measurement event used to trigger cell switching. The characteristic of the A5 event is that it combines the deterioration of the signal quality of the serving cell and the improvement of the signal quality of one or more neighboring cells. Specifically, the A5 event will be triggered when the signal quality of the serving cell is lower than a preset threshold value (Thresh1) and the signal quality of at least one neighboring cell is higher than another preset threshold value (Thresh2).

[0078] Optionally, the control center is also used to test the communication status of the terminal in the target area; if there is a communication abnormality problem caused by cell coverage, a first prompt message is sent to the target object, and the first prompt message is used to prompt the need to reselect multiple base stations in the network; if there is a communication abnormality problem caused by data transmission rate, a second prompt message is sent to the target object, and the second prompt message is used to prompt the need to adjust the data transmission configuration parameters of each base station in the current network.

[0079] As an optional implementation method, in order to further iteratively optimize the cell radius and time advance of each base station, in the event of random access failure, the target neighboring base station sends a failure notification message to the source base station, and determines the access distance between the terminal and the target neighboring base station based on the time advance reported when the terminal requests access to the target neighboring base station. If the access distance is greater than the cell configuration radius of the target neighboring base station, the time advance is reported to the control center, and the control center adds the time advance to the sub-database corresponding to the target neighboring base station in the base station group database, and increases the total number of time advances reported in the sub-database by one, and adjusts the cell configuration radius of each base station based on the multiple time advances reported by each base station. Specifically: when the total number of time advances reported by any base station exceeds a preset threshold, determine the access distance corresponding to each time advance reported by the base station, and determine the average value of the multiple access distances; if the average value is greater than the preset maximum cell radius corresponding to the base station, adjust the cell configuration radius of the base station to the preset maximum cell radius; if the average value is not greater than the preset maximum cell radius, adjust the cell configuration radius of the base station to the average value.

[0080] It should be noted that the implementation steps of the neighboring cell switching method in the embodiment of the present application correspond to the implementation process of each module in the wireless communication system in Example 1. Since a detailed description has been given in Example 1, some details not reflected in this embodiment can be referred to Example 1, and will not be repeated here.

[0081] Example 3

[0082] Based on the wireless communication system provided in Example 1, the embodiment of the present application also provides a neighboring cell switching method, which is applied to the base station. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0083] Figure 7 is a flow chart of a neighboring cell switching method provided according to an embodiment of the present application, such as Figure 7 As shown, the method comprises the following steps:

[0084] Step S702, obtaining measurement reports reported by each terminal accessing the base station, wherein the type of the base station includes: a first base station with 5G ultra-long-distance coverage enabled or a second base station with 5G ultra-long-distance coverage not enabled;

[0085] Step S704: for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the neighboring cell base stations corresponding to the base station are sorted from high to low according to the communication quality according to the measurement report of the terminal;

[0086] Step S706, try to switch the terminal to the neighboring base station with the highest communication quality according to the sorting result. If the switching fails, try to switch the terminal to the next neighboring base station in the sorting result until the switching is successful; wherein, each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance; the control center is used to adjust the cell configuration radius of each base station according to the multiple time advances reported by each base station.

[0087] The following describes each step of the neighboring cell switching method in conjunction with a specific implementation process.

[0088] Optionally, each base station obtains measurement reports reported by each terminal accessing the base station, wherein the measurement report includes: signal quality parameters and time advance of each neighboring base station measured by the terminal, wherein the type of signal quality parameters includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio; for each terminal, the communication quality of each neighboring base station corresponding to the neighboring relationship of the base station is determined based on the measurement report of the terminal.

[0089] For each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the base station will sort the neighboring cell base stations corresponding to the base station from high to low according to the communication quality based on the measurement report of the terminal; then try to switch the terminal to the neighboring cell base station with the highest communication quality based on the sorting result. If the switching fails, try to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; among them, each neighboring cell base station where the switching fails reports the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance.

[0090] Optionally, when attempting to switch the terminal to the target neighboring base station, the source base station sends a switching request message to the target neighboring base station, receives a switching request confirmation message fed back by the target neighboring base station, and then sends a wireless resource control reconfiguration message to the terminal; the terminal responds to the wireless resource control reconfiguration message and sends a random access request message to the target neighboring base station.

[0091] In the event of a random access failure, the target neighboring base station sends a failure notification message to the source base station, and determines the access distance between the terminal and the target neighboring base station based on the time advance reported when the terminal requests access to the target neighboring base station. If the access distance is greater than the cell configuration radius of the target neighboring base station, the time advance is reported to the control center; the control center adds the time advance to the sub-database corresponding to the target neighboring base station in the base station group database, and increases the total number of time advances reported in the sub-database by one; the source base station responds to the failure notification message and continues to try to switch the terminal to the next target neighboring base station; in the event of a successful random access, the terminal sends a wireless resource control reconfiguration completion message to the target neighboring base station; the target neighboring base station responds to the wireless resource control reconfiguration completion message, sends a path switching request message to the access and mobility management function network element, receives a path switching confirmation message fed back by the access and mobility management function network element, and then sends a terminal context release message to the source base station.

[0092] It should be noted that the implementation steps of the neighboring cell switching method in the embodiment of the present application correspond to the implementation process of each module in the wireless communication system in Example 1. Since a detailed description has been given in Example 1, some details not reflected in this embodiment can be referred to Example 1, and will not be repeated here.

[0093] Example 4

[0094] According to an embodiment of the present application, a computer program product is also provided, which includes a computer program, wherein when the computer program is executed by a processor, the neighboring cell switching method in Example 2 or Example 3 is implemented.

[0095] According to an embodiment of the present application, a non-volatile storage medium is also provided, which includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the neighboring cell switching method in Example 2 or Example 3 by running the computer program.

[0096] According to an embodiment of the present application, a processor is also provided, which is used to run a computer program, wherein the neighboring cell switching method in Example 2 or Example 3 is executed when the computer program is running.

[0097] According to an embodiment of the present application, an electronic device is also provided, which includes: a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to execute the neighboring cell switching method in Example 2 or Example 3 through the computer program.

[0098] Specifically, when the computer program is running, the following steps are executed: obtaining base station information of multiple base stations in the target area selected by the target object, building a base station group database based on the base station information, and configuring neighboring cell relationships and neighboring cell switching strategies for each base station; wherein the types of the multiple base stations include: a first base station with 5G ultra-long coverage enabled and a second base station with 5G ultra-long coverage not enabled; each base station is used to obtain measurement reports reported by each terminal accessing the base station, and for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, sorting the neighboring cell base stations corresponding to the base station from high to low according to the communication quality according to the measurement report of the terminal, and trying to switch the terminal to the neighboring cell base station with the highest communication quality according to the sorting result, and if the switching fails, trying to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance; counting the total number of time advances reported by each base station, and for each base station, if the total number of time advances reported by the base station exceeds a preset threshold, adjusting the cell configuration radius of the base station according to the multiple time advances reported by the base station.

[0099] Specifically, when the computer program is running, the following steps can also be executed: obtaining measurement reports reported by each terminal accessing the base station, wherein the types of base stations include: a first base station with 5G ultra-long coverage enabled or a second base station with 5G ultra-long coverage not enabled; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, sorting the neighboring cell base stations corresponding to the base station from high to low according to the communication quality based on the measurement report of the terminal; attempting to switch the terminal to the neighboring cell base station with the highest communication quality based on the sorting result, and if the switching fails, attempting to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; wherein each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance; the control center is used to adjust the cell configuration radius of each base station based on multiple time advances reported by each base station.

[0100] As an optional implementation, the electronic device may be in the form of a mobile terminal, a computer terminal or a similar computing device. Figure 8 FIG. 1 shows a hardware structure block diagram of an electronic device for implementing a neighboring cell switching method. Figure 8As shown, the electronic device 80 may include one or more (802a, 802b, ..., 802n are used to illustrate) processors 802 (the processor 802 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 804 for storing data, and a transmission device 806 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 8 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 8 More or fewer components as shown, or with Figure 8 Different configurations are shown.

[0101] It should be noted that the one or more processors 802 and / or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the electronic device 80. As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0102] The memory 804 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the neighboring cell switching method in the embodiment of the present application. The processor 802 executes various functional applications and data processing by running the software programs and modules stored in the memory 804, that is, realizing the vulnerability detection method of the above-mentioned application. The memory 804 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 804 may further include a memory remotely arranged relative to the processor 802, and these remote memories may be connected to the electronic device 80 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0103] The transmission device 806 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the electronic device 80. In one example, the transmission device 806 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 806 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0104] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the electronic device 80 .

[0105] The serial numbers of the above embodiments are only for description and do not represent the advantages or disadvantages of the embodiments.

[0106] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0107] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0108] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0109] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0110] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., which can store program code.

[0111] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A wireless communication system, characterized in that: include: A control center, multiple base stations and multiple terminals in the network, wherein the types of the multiple base stations include: a first base station with 5G ultra-long-distance coverage enabled and a second base station without 5G ultra-long-distance coverage enabled, wherein: The control center is used to obtain base station information of the multiple base stations in the target area selected by the target object, build a base station group database according to the base station information, and configure a neighboring cell relationship and a neighboring cell switching strategy for each of the base stations; Each base station is used to obtain measurement reports reported by each terminal accessing the base station; for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the neighboring cell base stations corresponding to the base station are sorted from high to low according to the communication quality based on the measurement report of the terminal, and the terminal is attempted to be switched to the neighboring cell base station with the highest communication quality based on the sorting result. If the switching fails, the terminal is attempted to be switched to the next neighboring cell base station in the sorting result until the switching is successful; wherein each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance; The control center is also used to count the total number of time advances reported by each base station; for each base station, if the total number of time advances reported by the base station exceeds a preset threshold, the cell configuration radius of the base station is adjusted according to the multiple time advances reported by the base station.

2. The system according to claim 1, characterized in that The control center is used to obtain the base station information of the multiple base stations in the target area selected by the target object, wherein the base station information at least includes: base station number, physical cell identifier, 5G ultra-long coverage attribute, and cell configuration radius; network the multiple base stations and build the base station group database, wherein the base station group database includes a sub-database corresponding to each base station, and the sub-database includes: the base station information of the base station, each time advance reported by the base station, and the total number of reported time advances.

3. The system according to claim 1, characterized in that The control center is also used to turn off the automatic neighbor relationship function of the multiple base stations; for each target first base station, each of the other first base stations is configured as a neighboring cell of the target first base station in turn, and a neighboring cell switching strategy based on the A3 event is configured, and each of the second base stations is configured as a neighboring cell of the target first base station in turn, and a neighboring cell switching strategy based on a combination of A3 events and A5 events is configured, wherein the target first base station is any first base station among the multiple first base stations; for each target second base station, each of the first base stations is configured as a neighboring cell of the target second base station in turn, and a neighboring cell switching strategy based on a combination of A3 events and A5 events is configured, and other second base stations adjacent to the coverage area of ​​the target second base station are configured as neighboring cells of the target second base station in turn, and a neighboring cell switching strategy based on the A3 event is configured, wherein the target second base station is any second base station among the multiple second base stations.

4. The system according to claim 1, characterized in that The control center is also used to test the communication status of the terminal in the target area; if there is a communication abnormality problem caused by cell coverage, a first prompt message is sent to the target object, wherein the first prompt message is used to prompt the need to reselect multiple base stations for networking; if there is a communication abnormality problem caused by data transmission rate, a second prompt message is sent to the target object, wherein the second prompt message is used to prompt the need to adjust the data transmission configuration parameters of each base station in the current networking.

5. The system according to claim 1, characterized in that Each base station is used to obtain a measurement report reported by each terminal accessing the base station, wherein the measurement report includes: a signal quality parameter and a time advance of each neighboring base station measured by the terminal, wherein the type of the signal quality parameter includes at least one of the following: a reference signal received power, a reference signal received quality, and a signal to interference plus noise ratio; for each terminal, the communication quality of each neighboring base station corresponding to the neighboring relationship of the base station is determined based on the measurement report of the terminal.

6. The system according to claim 2, characterized in that When the source base station attempts to switch the terminal to the target neighboring base station, The source base station is configured to send a handover request message to the target neighboring base station, and receive a handover request confirmation message fed back by the target neighboring base station; and send a radio resource control reconfiguration message to the terminal; The terminal is configured to respond to the radio resource control reconfiguration message and send a random access request message to the target neighboring base station; if the random access is successful, send a radio resource control reconfiguration completion message to the target neighboring base station; The target neighboring cell base station is used to respond to the radio resource control reconfiguration completion message, send a path switching request message to the access and mobility management function network element, receive a path switching confirmation message fed back by the access and mobility management function network element, and send a terminal context release message to the source base station; In the case where random access of the terminal fails, sending a failure notification message to the source base station, and determining the access distance between the terminal and the target neighboring base station according to the time advance reported when the terminal requests access to the target neighboring base station, if the access distance is greater than the cell configuration radius of the target neighboring base station, reporting the time advance to the control center; The control center is configured to add the timing advance to the sub-database corresponding to the target neighboring base station in the base station group database, and increase the total number of timing advances reported in the sub-database by one; The source base station is used to respond to the failure notification message and continue to try to switch the terminal to a next target neighboring base station.

7. The system according to claim 1, characterized in that The control center is configured to determine the access distance corresponding to each timing advance reported by any base station when the total number of timing advances reported by the base station exceeds the preset threshold, and determine an average value of the plurality of access distances; If the average value is greater than the preset maximum cell radius corresponding to the base station, the cell configuration radius of the base station is adjusted to the preset maximum cell radius; if the average value is not greater than the preset maximum cell radius, the cell configuration radius of the base station is adjusted to the average value.

8. A neighboring cell handover method, applied to a control center, characterized in that: include: Obtain the base station information of multiple base stations in the target area selected by the target object, build a base station group database based on the base station information, and configure neighboring cell relations and neighboring cell switching strategies for each of the base stations; wherein the types of the multiple base stations include: a first base station with 5G ultra-long coverage enabled and a second base station without 5G ultra-long coverage enabled; each base station is used to obtain measurement reports reported by each terminal accessing the base station, and for each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, sort the neighboring cell base stations corresponding to the base station from high to low according to the communication quality according to the measurement report of the terminal, and try to switch the terminal to the neighboring cell base station with the highest communication quality according to the sorting result, and if the switching fails, try to switch the terminal to the next neighboring cell base station in the sorting result until the switching is successful; each neighboring cell base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring cell base station where the switching fails to the control center when the switching fails due to the access distance; The total number of timing advances reported by each base station is counted. For each base station, if the total number of timing advances reported by the base station exceeds a preset threshold, the cell configuration radius of the base station is adjusted according to the multiple timing advances reported by the base station.

9. A neighboring cell handover method, applied to a base station, characterized in that: include: Obtain measurement reports reported by each terminal accessing the base station, where the type of the base station includes: a first base station with 5G ultra-long-distance coverage enabled or a second base station without 5G ultra-long-distance coverage enabled For each terminal, if the measurement report of the terminal triggers the neighboring cell switching strategy of the base station, the neighboring cell base stations corresponding to the base station are sorted from high to low according to the communication quality according to the measurement report of the terminal; According to the sorting result, the terminal is attempted to be switched to the neighboring base station with the highest communication quality. If the switching fails, the terminal is attempted to be switched to the next neighboring base station in the sorting result until the switching is successful. Each neighboring base station where the switching fails is used to report the time advance corresponding to the terminal and the neighboring base station where the switching fails to the control center when the switching fails due to the access distance. The control center is used to adjust the cell configuration radius of each base station according to the multiple time advances reported by each base station.

10. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the neighboring cell switching method according to claim 8 or claim 9 through the computer program.

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