Automatic neighbor cell method for sharing 5G base station by multiple operators

By configuring multiple neighbor tables and administrator confirmation in semi-automatic modes on the base station, the problem that traditional automatic neighbor function cannot identify the main PLMN in the environment of shared 5G base stations by multiple operators is solved, and stable handover function and reasonable neighbor management are achieved.

CN119789160APending Publication Date: 2025-04-08FUJIAN FUJITSU COMM SOFTWARE CO LTD
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Patent Information

Application Number
CN202411937365.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The traditional automatic neighborhood function cannot effectively identify the main PLMN in the environment where multiple operators share 5G base stations, resulting in confusion in the handover function and cannot meet actual needs.

Method used

By configuring three types of neighborhood tables (neighborhood relationship tables, neighborhood lists, candidate neighborhood tables) on the base station end, and identify and save neighborhood information in semi-automatic mode by the administrator.

Benefits of technology

It realizes efficient maintenance of neighborhood information in the environment where multiple operators share 5G base stations, avoid functional abnormalities, and ensure the stability and correctness of the switching function.

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Abstract

The invention discloses an automatic neighbor cell method for sharing a 5G base station by multiple operators, which comprises the following steps of: issuing a measurement request to accessed user equipment (UE), notifying the UE to search a neighbor cell and obtain a PCI (Peripheral Component Interconnect) of the UE, and reporting a discovered PCI list to the base station through a measurement report. And the base station judges the cells needing to report the CGI according to the received PCI list, and issues CGI measurement requests to user equipment (UE) for the cells one by one. And after receiving the CGI reported by the user terminal UE, the base station adds the corresponding cells to the candidate neighbor list and the neighbor list. When multiple operators may share the 5G base station in the neighbor cells of the base station, the automatic neighbor cell function is configured to be in a semi-automatic mode, the found neighbor cells are not automatically added to the neighbor cell relation table at the moment but are added to the neighbor cell list, and the network manager confirms which is the main PLMN neighbor cells of the operators and then adds the neighbor cells to the neighbor cell relation table. According to the invention, confusion of the adjacent cells when multiple operators share the 5G base station in the adjacent base station is avoided, and the adjacent cells are managed reasonably.
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Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to an automatic neighboring cell method for multiple operators to share a 5G base station. Background Art

[0002] In the 5G communication era, due to the differences in frequency bands and communication technologies, more 5G base stations need to be deployed to improve coverage. Considering the cost and difficulty of system maintenance, some mainstream operators have adopted the practice of multiple operators sharing 5G base stations. One shared base station supports the access of mobile phones from multiple operators at the same time.

[0003] If the traditional automatic neighboring cell function is used to automatically add neighboring cells, although it can reduce the difficulty of manually maintaining neighboring cells to a certain extent, it will also bring new problems. When the neighboring base station is a 5G base station shared by multiple operators, the automatic neighboring cell function will save all the neighboring cells found, including all the neighboring cells of different PLMNs of the neighboring base station, but in actual use, only the neighboring cells of the main PLMN are valid. This main PLMN corresponds to the operator to which the base station equipment belongs. For example, the base station equipment belongs to operator A, but the base station is shared by operator A and operator B. At this time, the main PLMN is the PLMN of operator A.

[0004] When the user equipment sends a handover request to the base station, the base station will first select the neighboring cell that is consistent with the PLMN of the mobile operator and send a handover request to the core network. At this time, the selected PLMN may not be the main operator of the base station equipment, which will cause confusion in the handover function. Therefore, the traditional automatic neighboring cell function cannot meet the actual needs. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic neighboring cell method for a 5G base station shared by multiple operators, which can identify the primary PLMN of the base station, is suitable for multiple operators sharing a 5G base station, and can efficiently maintain neighboring cell information while avoiding functional abnormalities caused by the existence of neighboring cells of the 5G base station shared by multiple operators.

[0006] The technical solution adopted by the present invention is: An automatic neighboring cell method for multiple operators sharing a 5G base station comprises the following steps: Step 1: The base station configures a neighbor relation table, a neighbor list and a candidate neighbor table to manage neighbor information; the neighbor relation table is used to search and obtain relevant information of the target neighbor when executing the switching service; the neighbor list contains all neighbor registered with the base station; the neighbor discovered by the user terminal UE is temporarily saved in the candidate neighbor table, and the neighbor information of the candidate neighbor table will be removed from the candidate neighbor table after being registered in the neighbor list.

[0007] Specifically, the base station prepares three types of neighbor cell tables for managing neighbor cell information: a neighbor cell relationship table, a neighbor cell list, and a candidate neighbor cell table; the neighbor cell relationship table is a neighbor cell table that can be used as a basis for switching. When executing the switching service, the relevant information of the target neighbor cell is searched and obtained from the table; the neighbor cell list contains all the neighbor cells registered with the base station, which is used to save and maintain local neighbor cell information; the candidate neighbor cell table acts as a buffer, and the neighbor cells discovered through the user terminal UE report will be temporarily saved in the table first, and will be removed from the candidate neighbor cell table after the neighbor cell information is registered in the neighbor cell list.

[0008] Furthermore, in step 1, relevant measurement events and frequencies are configured for the user terminal UE to measure neighboring cells, and appropriate frequencies and measurement thresholds of measurement events are configured according to actual needs.

[0009] Step 2: After the user terminal UE accesses the base station, the base station sends a configuration measurement event to the user terminal UE; the user terminal UE measures the neighboring cells according to the configuration of the measurement event, and reports the neighboring cell information that meets the requirements found in the measurement to the base station; Specifically, after the user terminal UE accesses the base station and completes all RRC Reconfiguration and RB establishment, the base station will automatically start the process and send the configured measurement event and related parameters through the RRC Reconfiguration message. After receiving the message, the user terminal UE will measure the neighboring cells according to the configuration of the measurement event, and report the neighboring cell information that meets the requirements found in the measurement to the base station through the MeasurementReport message.

[0010] Step 3, the base station stores the neighboring cell information reported by the user terminal UE into a temporary list; Step 4, the base station determines whether there is a neighboring area that has not been measured in the temporary list; if so, selects a neighboring area that has not been measured from the temporary list and executes step 5; otherwise, the process ends; Step 5: Initiate a CGI measurement request to the user terminal UE corresponding to the selected neighboring cell, and obtain the CGI measured by the user terminal UE; Specifically, after receiving the neighboring cell information reported by the user terminal UE, the base station will first store it in a temporary list. During this process, the neighboring cell information that has been registered in the neighboring cell list or the temporary list will not be saved repeatedly. After that, the base station will initiate a CGI measurement request of the neighboring cell to the user terminal UE through the RRC Reconfiguration message for each neighboring cell in the temporary list. The user terminal UE will report the measured CGI to the base station through the Measurement Report message.

[0011] Step 6: The base station determines whether the current neighboring cell has been saved in the candidate neighboring cell table; if so, the discovery count of the corresponding neighboring cell is increased by 1; otherwise, the CGI and the previously saved neighboring cell information are saved together in the candidate neighboring cell table, and the discovery count of the corresponding neighboring cell is increased by 1; Step 7, determine whether the number of neighbor area discovery times reaches the threshold set by the administrator; if yes, register the neighbor area into the neighbor area list and execute step 8; otherwise, execute step 4; Among them, when there are multiple operators sharing 5G base stations, it is in semi-automatic mode; when the neighboring cell is registered to the neighboring cell list, the neighboring cell information will be processed differently according to the working mode configuration: when the current working mode is automatic, the neighboring cell will be marked as "valid"; when the current working mode is semi-automatic, the neighboring cell will be marked as "pending confirmation"; Specifically, after receiving the reported neighbor CGI, the base station will save the CGI and the previously saved neighbor information into the candidate neighbor table, and increase the neighbor discovery count by 1; if the neighbor information of the reported CGI is already in the candidate neighbor table, only the neighbor discovery count will be increased by 1. After that, if the neighbor discovery count reaches the threshold set by the administrator, the process of registering the neighbor to the neighbor list will be started.

[0012] Furthermore, step 7 specifically includes the following steps: Step 7-1, in the process of saving the neighbor list, the neighbor information saved in the candidate neighbor list will first be written into the local configuration file; Step 7-2: The neighboring cell information will be processed differently according to the working mode configuration: when the current working mode is automatic, the neighboring cell will be marked as "valid"; when the current working mode is semi-automatic, the neighboring cell will be marked as "pending confirmation"; Specifically, in the process of saving the neighbor list in step 7, the neighbor information saved in the candidate neighbor table will first be written into the local configuration file. At this time, the neighbor information will be processed differently according to the working mode configuration of the method. When the current working mode is automatic, the neighbor will be marked as "valid"; when the current working mode is semi-automatic, the neighbor will be marked as "pending confirmation". After the neighbor information is written, an update event will be triggered.

[0013] Step 8: After the neighboring cell information is written, an update event is triggered; the base station will read the stored neighboring cell information from the configuration file, and then compare it with the existing information in the neighboring cell list, and mark the neighboring cells with differences as "confirmed", "added", "modified", or "invalid" according to the differences; Furthermore, in step 8, when the update event is triggered, the base station will read the stored neighboring cell information from the configuration file, and then compare it with the existing information in the neighboring cell list, and mark the neighboring cells with differences as "confirmed", "added", "modified", or "invalid" according to the differences.

[0014] Step 9: Different processing methods are adopted for each neighboring area in the neighboring area list according to the identification made during the comparison: If the flag is "confirmed", it means that there is no difference between the neighboring cell information before and after, so no processing is performed; If the flag is "new", it means that the read neighbor information has not been registered in the neighbor list. At this time, the flag will be additionally judged, and the "valid" neighbor will be added to the neighbor relationship table, while the neighbor marked as "pending" will not be additionally processed and will only be registered in the neighbor list; If the flag is "modified", it means that the read neighbor information exists in the neighbor list, but the corresponding specific parameters have changed. At the same time, the flag is judged. The "valid" neighbor will update the parameters in the neighbor relationship table, and the "pending" neighbor will only update the parameters in the neighbor list; If the flag is "invalid", it means that the neighboring area information has not been read, that is, the neighboring area has been deleted, and the neighboring area is removed from the neighboring area list and the neighboring area relationship table.

[0015] Furthermore, in step 9, in the semi-automatic mode, the neighboring cells reported by the user terminal UE will be in the "pending confirmation" state. The neighboring cells in this state will not be added to the neighboring cell relationship table and cannot be used as the basis for switching and other services. The administrator needs to confirm which is the operator's primary PLMN. The administrator can modify the neighboring cell identification that needs to be confirmed to "valid" on the base station page, thereby adding the neighboring cell to the neighboring cell relationship table through the update event.

[0016] The present invention adopts the above technical solution, confirms the main PLMN of the neighboring area through the traditional automatic neighboring area discovery method, and the semi-automatic SON mode, and adds the correct neighboring area information. Specifically, a measurement request is sent to the accessed user terminal UE to notify the user terminal UE to search for the neighboring area and obtain its PCI, and then the discovered PCI list is reported to the base station through the measurement report. The base station determines the cell that needs to report the CGI based on the received PCI list, and sends a CGI measurement request to the user terminal UE for these cells one by one. After receiving the CGI reported by the user terminal UE, the base station adds the corresponding cell to the candidate neighboring area table and the neighboring area list. When there may be multiple operators sharing a 5G base station in the neighboring area of ​​the base station, the automatic neighboring area function is configured to a semi-automatic mode. At this time, the discovered neighboring area will not be automatically added to the neighboring area relationship table, but added to the neighboring area list, and the network manager confirms which is the operator's main PLMN neighboring area before adding it to the neighboring area relationship table. Through this method, it is possible to avoid confusion in the neighboring area when there are multiple operators sharing a 5G base station in the neighboring base station, and to manage the neighboring area reasonably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments; Figure 1 A schematic diagram of a process of an automatic neighboring cell method for multiple operators to share a 5G base station according to the present invention; Figure 2 It is a flowchart of a specific embodiment updated by the present invention; Figure 3 The figure is a schematic diagram of the signaling flow between the user terminal UE and the base station gNB. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions 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.

[0019] like Figures 1 to 3 As shown in one, the present invention discloses an automatic neighboring cell method for multiple operators to share a 5G base station, which includes the following steps: Step 1: The base station configures a neighbor relation table, a neighbor list and a candidate neighbor table to manage neighbor information; the neighbor relation table is used to search and obtain relevant information of the target neighbor when executing the switching service; the neighbor list contains all neighbor registered with the base station; the neighbor discovered by the user terminal UE is temporarily saved in the candidate neighbor table, and the neighbor information of the candidate neighbor table will be removed from the candidate neighbor table after being registered in the neighbor list.

[0020] Specifically, the base station prepares three types of neighbor cell tables for managing neighbor cell information: a neighbor cell relationship table, a neighbor cell list, and a candidate neighbor cell table; the neighbor cell relationship table is a neighbor cell table that can be used as a basis for switching. When executing the switching service, the relevant information of the target neighbor cell is searched and obtained from the table; the neighbor cell list contains all the neighbor cells registered with the base station, which is used to save and maintain local neighbor cell information; the candidate neighbor cell table acts as a buffer, and the neighbor cells discovered through the user terminal UE report will be temporarily saved in the table first, and will be removed from the candidate neighbor cell table after the neighbor cell information is registered in the neighbor cell list.

[0021] Furthermore, in step 1, relevant measurement events and frequencies are configured for the user terminal UE to measure neighboring cells, and appropriate frequencies and measurement thresholds of measurement events are configured according to actual needs.

[0022] Step 2: After the user terminal UE accesses the base station, the base station sends a configuration measurement event to the user terminal UE; the user terminal UE measures the neighboring cells according to the configuration of the measurement event, and reports the neighboring cell information that meets the requirements found in the measurement to the base station; Specifically, after the user terminal UE accesses the base station and completes all RRC Reconfiguration and RB establishment, the base station will automatically start the process and send the configured measurement event and related parameters through the RRC Reconfiguration message. After receiving the message, the user terminal UE will measure the neighboring cells according to the configuration of the measurement event, and report the neighboring cell information that meets the requirements found in the measurement to the base station through the MeasurementReport message.

[0023] Step 3, the base station stores the neighboring cell information reported by the user terminal UE into a temporary list; Step 4, the base station determines whether there is a neighboring area that has not been measured in the temporary list; if so, selects a neighboring area that has not been measured from the temporary list and executes step 5; otherwise, the process ends; Step 5: Initiate a CGI measurement request to the user terminal UE corresponding to the selected neighboring cell, and obtain the CGI measured by the user terminal UE; Specifically, after receiving the neighboring cell information reported by the user terminal UE, the base station will first store it in a temporary list. During this process, the neighboring cell information that has been registered in the neighboring cell list or the temporary list will not be saved repeatedly. After that, the base station will initiate a CGI measurement request of the neighboring cell to the user terminal UE through the RRC Reconfiguration message for each neighboring cell in the temporary list. The user terminal UE will report the measured CGI to the base station through the Measurement Report message.

[0024] Step 6: The base station determines whether the current neighboring cell has been saved in the candidate neighboring cell table; if so, the discovery count of the corresponding neighboring cell is increased by 1; otherwise, the CGI and the previously saved neighboring cell information are saved together in the candidate neighboring cell table, and the discovery count of the corresponding neighboring cell is increased by 1; Step 7, determine whether the number of neighbor area discovery times reaches the threshold set by the administrator; if yes, register the neighbor area into the neighbor area list and execute step 8; otherwise, execute step 4; Specifically, after receiving the reported neighbor CGI, the base station will save the CGI and the previously saved neighbor information into the candidate neighbor table, and increase the neighbor discovery count by 1; if the neighbor information of the reported CGI is already in the candidate neighbor table, only the neighbor discovery count will be increased by 1. After that, if the neighbor discovery count reaches the threshold set by the administrator, the process of registering the neighbor to the neighbor list will be started.

[0025] Furthermore, step 7 specifically includes the following steps: Step 7-1, in the process of saving the neighbor list, the neighbor information saved in the candidate neighbor list will first be written into the local configuration file; Step 7-2: The neighboring cell information will be processed differently according to the working mode configuration: when the current working mode is automatic, the neighboring cell will be marked as "valid"; when the current working mode is semi-automatic, the neighboring cell will be marked as "pending confirmation"; Specifically, in the process of saving the neighbor list in step 7, the neighbor information saved in the candidate neighbor table will first be written into the local configuration file. At this time, the neighbor information will be processed differently according to the working mode configuration of the method. When the current working mode is automatic, the neighbor will be marked as "valid"; when the current working mode is semi-automatic, the neighbor will be marked as "pending confirmation". After the neighbor information is written, an update event will be triggered.

[0026] Step 8: After the neighboring cell information is written, an update event is triggered; the base station will read the stored neighboring cell information from the configuration file, and then compare it with the existing information in the neighboring cell list, and mark the neighboring cells with differences as "confirmed", "added", "modified", or "invalid" according to the differences; Furthermore, in step 8, when the update event is triggered, the base station will read the stored neighboring cell information from the configuration file, and then compare it with the existing information in the neighboring cell list, and mark the neighboring cells with differences as "confirmed", "added", "modified", or "invalid" according to the differences.

[0027] Step 9: Different processing methods are adopted for each neighboring area in the neighboring area list according to the identification made during the comparison: If the flag is "confirmed", it means that there is no difference between the neighboring cell information before and after, so no processing is performed; If the flag is "new", it means that the read neighbor information has not been registered in the neighbor list. At this time, the flag will be additionally judged, and the "valid" neighbor will be added to the neighbor relationship table, while the neighbor marked as "pending" will not be additionally processed and will only be registered in the neighbor list; If the flag is "modified", it means that the read neighbor information exists in the neighbor list, but the corresponding specific parameters have changed. At the same time, the flag is judged. The "valid" neighbor will update the parameters in the neighbor relationship table, and the "pending" neighbor will only update the parameters in the neighbor list; If the flag is "invalid", it means that the neighboring area information has not been read, that is, the neighboring area has been deleted, and the neighboring area is removed from the neighboring area list and the neighboring area relationship table.

[0028] Furthermore, in step 9, in the semi-automatic mode, the neighboring cells reported by the user terminal UE will be in the "pending confirmation" state. The neighboring cells in this state will not be added to the neighboring cell relationship table and cannot be used as the basis for switching and other services. The administrator needs to confirm which is the operator's primary PLMN. The administrator can modify the neighboring cell identification that needs to be confirmed to "valid" on the base station page, thereby adding the neighboring cell to the neighboring cell relationship table through the update event.

[0029] like Figure 2 As shown in Figure 3, the present invention deals with the process of multiple operators sharing 5G base stations. When there are operators A and B sharing base stations in the environment, the function implementation method is as follows: (1) After the user terminal UE successfully accesses, the gNB sends the measurement event through the RRC Reconfiguration message (2) The user terminal UE measures and obtains the information of neighboring cells whose service quality meets the threshold, and reports it to the gNB through the Measure Report message. At this time, the cell information of the shared base station will be divided into two cells whose PLMNs belong to operator A and operator B respectively, and only the cell information whose PLMN is operator A is valid.

[0030] (3) The gNB receives the neighboring cell information reported by the user terminal UE and saves it to a temporary table; (4) Take the neighboring cells one by one from the temporary table and send a CGI measurement request to the user terminal UE; (5) The user terminal UE reports the measured CGI to the gNB; (6) Upon receiving the reported CGI, the gNB saves the neighbor information to the candidate neighbor table. If the neighbor information is already in the table, it only increases the discovery counter. When the discovery count reaches the set threshold, the neighbor will be written into the configuration file, and then a neighbor information update event will be triggered. (7) In the event of a neighbor update, all neighbor information is first read from the configuration file, compared with the existing information in the neighbor list, and the change status is marked, and then all is stored in the neighbor list; (8) Unconfirmed neighbor cells will not be added to the neighbor relationship table in the update event, but their neighbor information has been saved in the neighbor list. The neighbor information that has been logged in the neighbor list will be removed from the candidate neighbor table; (9) The network management confirms that the PLMN belongs to the shared base station neighboring cell of operator A and deletes the invalid neighboring cell information. This operation triggers a neighboring cell information update event. (10) Through the neighbor cell update event, the valid neighbor cells of PLMN belonging to operator A are added to the neighbor cell relationship table. Users of operator B can also switch to this A and B operator shared base station through the neighbor cell information.

[0031] The present invention adopts the above technical solution, confirms the main PLMN of the neighboring area through the traditional automatic neighboring area discovery method, and the semi-automatic SON mode, and adds the correct neighboring area information. Specifically, a measurement request is sent to the accessed user terminal UE to notify the user terminal UE to search for the neighboring area and obtain its PCI, and then the discovered PCI list is reported to the base station through the measurement report. The base station determines the cell that needs to report the CGI based on the received PCI list, and sends a CGI measurement request to the user terminal UE for these cells one by one. After receiving the CGI reported by the user terminal UE, the base station adds the corresponding cell to the candidate neighboring area table and the neighboring area list. When there may be multiple operators sharing a 5G base station in the neighboring area of ​​the base station, the automatic neighboring area function is configured to a semi-automatic mode. At this time, the discovered neighboring area will not be automatically added to the neighboring area relationship table, but added to the neighboring area list, and the network manager confirms which is the operator's main PLMN neighboring area before adding it to the neighboring area relationship table. Through this method, it is possible to avoid confusion in the neighboring area when there are multiple operators sharing a 5G base station in the neighboring base station, and to manage the neighboring area reasonably.

[0032] Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians of the art without making creative work are within the scope of protection of the present application.

Claims

1. An automatic neighboring cell method for multiple operators sharing 5G base stations, characterized in that: It includes the following steps: Step 1: The base station configures a neighbor relation table, a neighbor list, and a candidate neighbor table to manage neighbor information; The neighbor relation table is used to search and obtain relevant information of the target neighboring cell from the neighbor relation table when executing the handover service; the neighbor list contains all neighboring cells registered with the base station; the neighboring cells reported by the user terminal UE are temporarily saved in the candidate neighbor table first, and the neighbor information of the candidate neighbor table will be removed from the candidate neighbor table after being registered in the neighbor list; Step 2: After the user terminal UE accesses the base station, the base station sends a configuration measurement event to the user terminal UE; The user terminal UE measures the neighboring cells according to the configuration of the measurement event, and reports the neighboring cell information that meets the requirements found in the measurement to the base station; Step 3, the base station stores the neighboring cell information reported by the user terminal UE into a temporary list; Step 4, the base station determines whether there is a neighboring area that has not been measured in the temporary list; if so, selects a neighboring area that has not been measured from the temporary list and executes step 5; otherwise, the process ends; Step 5: Initiate a CGI measurement request to the user terminal UE corresponding to the selected neighboring cell, and obtain the CGI measured by the user terminal UE; Step 6, the base station determines whether the current neighboring cell has been saved in the candidate neighboring cell table; If yes, the corresponding neighboring area discovery count is increased by 1; Otherwise, save the CGI and the previously saved neighbor information into the candidate neighbor table, and add 1 to the corresponding neighbor discovery count; Step 7, determine whether the number of neighbor discovery times reaches the threshold set by the administrator; if yes, register the neighbor to the neighbor list and execute step 8; Otherwise, go to step 4; Among them, when there are multiple operators sharing 5G base stations, it is in semi-automatic mode; when the neighboring cell is registered to the neighboring cell list, the neighboring cell information will be processed differently according to the working mode configuration: when the current working mode is automatic, the neighboring cell will be marked as "valid"; and when the current working mode is semi-automatic, the neighboring cell will be marked as "pending confirmation"; Step 8: After the neighboring cell information is written, an update event is triggered; the base station reads the stored neighboring cell information from the configuration file, and then compares it with the existing information in the neighboring cell list, and makes different identifications for the neighboring cells with differences according to the differences; Step 9: According to the identification made during the comparison, different processing methods are adopted for the neighboring areas in each neighboring area list, and the neighboring areas are added to the neighboring area relationship table, and then step 4 is executed.

2. According to claim 1, a method for automatic neighboring cells of multiple operators sharing 5G base stations is characterized in that: In step 1, relevant measurement events and frequencies are configured for the user terminal UE to measure neighboring cells, and appropriate frequencies and measurement thresholds of measurement events are configured according to actual needs.

3. The automatic neighboring cell method for multiple operators sharing a 5G base station according to claim 1, characterized in that: In step 1, after the user terminal UE accesses the base station and completes the establishment of all RRC Reconfiguration and RB, the base station sends the configured measurement event through the RRCReconfiguration message; after the user terminal UE receives the message, it measures the neighboring cell according to the configuration of the measurement event, and reports the neighboring cell information that meets the requirements found in the measurement to the base station through the Measurement Report message.

4. According to claim 1, the automatic neighboring cell method for multiple operators sharing 5G base stations is characterized in that: Step 7 specifically includes the following steps: Step 7-1, in the process of saving the neighbor list, the neighbor information saved in the candidate neighbor list will first be written into the local configuration file; Step 7-2, the neighboring cell information will be processed differently according to the working mode configuration: when the current working mode is automatic, the neighboring cell will be marked as "valid"; when the current working mode is semi-automatic, the neighboring cell will be marked as "pending confirmation".

5. According to claim 1, the automatic neighboring cell method for multiple operators sharing 5G base stations is characterized in that: In step 8, mark "confirm", "add", "modify" or "invalid" according to the difference.

6. The automatic neighboring cell method for multiple operators sharing a 5G base station according to claim 5, characterized in that: Step 9: Different processing methods are as follows: If the flag is "confirmed", it means that there is no difference between the neighboring cell information before and after, so no processing is performed; If the flag is "new", it means that the read neighbor information has not been registered in the neighbor list. The flag is judged and the "valid" neighbor is added to the neighbor relationship table. The neighbor marked as "pending" is not processed additionally and is only registered in the neighbor list. If the flag is "modify", it means that the read neighbor information exists in the neighbor list, but the corresponding specific parameters have changed. The flag is judged. The "valid" neighbor will update the parameters in the neighbor relationship table, and the "pending" neighbor will only update the parameters in the neighbor list; If the mark is "invalid", it means that the neighboring area information has not been read, that is, the neighboring area has been deleted, and the neighboring area is removed from the neighboring area list and the neighboring area relationship table.

7. The automatic neighboring cell method for multiple operators sharing a 5G base station according to claim 1 or 6, characterized in that: In step 9, in the semi-automatic mode, the neighboring cells reported by the user terminal UE will be in the "pending confirmation" state. The neighboring cells in the "pending confirmation" state will not be added to the neighboring cell relationship table and cannot be used as the basis for switching and other services. The administrator confirms which is the operator's primary PLMN; the administrator changes the required confirmed neighboring cell identifier to "valid" on the base station page.