A 5G NR cell PCI automatic planning method and system

Abstract

The application particularly relates to a 5G NR cell PCI automatic planning method and system. The 5G NR cell PCI automatic planning method creates a data table, obtains the frequency points, longitude and latitude and directional angle of antennas of all base station cells in a region and the frequency points, longitude and latitude, directional angle and adjacent area range of a to-be-deployed cell, and respectively stores them into the data table; the distance between the to-be-deployed cell and all cells in the region is calculated; the PCI planning of an operator, i.e. the PCI range list used by each region, is determined; the unused PCI of the frequency point corresponding to the to-be-deployed cell is preferentially used; if the PCI range list unused by the frequency point corresponding to the to-be-deployed cell is empty, the farthest PIC from the planned cell is selected. The 5G NR cell PCI automatic planning method and system can meet the actual needs of 5G network deployment, reduce the unreasonable cell PCI conflict caused by the planning of the PCI of the base station start-up deployment in the early stage, the confusion caused by the cell PCI conflict, the interference between cells and the switching failure and the like, and improve the network planning and optimization efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of 5G application, and particularly relates to a 5G NR cell PCI automatic planning method and system. BACKGROUND

[0002] In 5G NR, cells are generally distinguished by using physical cell identifiers (PCI for short). There are 1008 physical cell identifiers, and because of the limited number, especially with the large-scale deployment of 5G base stations and 5G home base stations and the planning of PCI by operators for each area, the available PCI will be greatly reduced, so in the allocation process, PCI conflicts and confusions are prone to occur, and the PCI allocation will increase certain difficulty.

[0003] The PCI conflict scenario is generally that the same PCI is configured in adjacent cells, and the PCI confusion is that two adjacent cells of a cell are configured with the same PCI, which causes the user equipment to be unable to distinguish which cell is the target handover cell.

[0004] The currently commonly used solution includes the following steps:

[0005] 1) initial PCI allocation, including random allocation and on-demand allocation;

[0006] 2) conflict detection;

[0007] 3) conflict resolution;

[0008] 4) automatic adjustment;

[0009] 5) subsequent detection and maintenance.

[0010] The entire process described above is to deploy first, and then automatically detect and solve the exception. However, if the exception is detected after deployment, re-deployment will undoubtedly increase the use cost, prolong the user waiting time, and reduce the user's satisfaction.

[0011] In order to solve the above problems, the present application provides a 5G NR cell PCI automatic planning method and system. SUMMARY

[0012] The present application provides a simple and efficient 5G NR cell PCI automatic planning method and system to make up for the defects of the prior art.

[0013] The present application is realized by the following technical solutions:

[0014] A 5G NR cell PCI automatic planning method is characterized in that: before the deployment of a base station / cell, the physical cell identifier (PCI) is automatically planned through the latitude and longitude of the base station / cell, the frequency point and the directional angle of the antenna, so as to avoid the problem of network communication quality decline caused by PCI allocation after deployment.

[0015] The method comprises the following steps:

[0016] Step S1, data acquisition and calculation;

[0017] Step S1.1, create a data table, acquire the frequency point, latitude and longitude of all base station cells in the region, and the directional angle of the antenna, as well as the frequency point, latitude and longitude of the to-be-deployed cell, the directional angle and the range of the adjacent area, and store them in the data table respectively;

[0018] Step S1.2, calculate the distance between the to-be-deployed cell and all cells in the region;

[0019] Step S1.3, determine the PCI planning of the operator, i.e. the PCI range list used in each region;

[0020] In the step S1, the following data tables are created:

[0021] Data table A is used to save the frequency point, latitude and longitude of all base station cells in the region, and the directional angle of the antenna, as well as the distance between the to-be-deployed cell and all cells in the region;

[0022] Data table B is used to save the frequency point, latitude and longitude of the to-be-deployed cell, the directional angle and the range of the adjacent area;

[0023] Data table C is used to save all PCIs specified by 5G NR, numbered from 0 to 1007, a total of 1008;

[0024] Data table D is used to save the PCI planning of the operator, i.e. the PCI range list used in each region.

[0025] Step S2, preferentially use the PCI not used by the corresponding frequency point of the to-be-deployed cell;

[0026] Step S2.1, acquire the PCIs corresponding to all the same frequency points of all base station cells in the region and the to-be-deployed cell;

[0027] Step S2.2, according to the frequency point of the to-be-deployed cell, combine the PCI planning of the operator, and acquire the PCI range list of the to-be-deployed cell in the operator planning;

[0028] Step S2.3, according to the PCI range list of the to-be-deployed cell in the operator planning, and filter out the PCIs corresponding to all the same frequency points of all base station cells in the region and the to-be-deployed cell from the PCI range list, to obtain the PCI range list not used by the corresponding frequency point of the to-be-deployed cell.

[0029] If the list of unused PCIs corresponding to the frequency of the to-be-deployed cell is not empty, the list is recorded and an output result is returned;

[0030] Otherwise, the process jumps to step S3;

[0031] In step S2, the PCIs corresponding to the same frequency are filtered from the data table A and the data table B, and the filtered PCIs are deleted from the data table C, so as to obtain a PCI set A;

[0032] In combination with the data table B and the data table D, the list of PCIs in the operator planning for the to-be-deployed cell is calculated, so as to obtain a PCI set B;

[0033] The intersection of the PCI set A and the PCI set B is taken as the list of unused PCIs corresponding to the frequency of the to-be-deployed cell.

[0034] In step S3, the PCI farthest from the planning cell is selected.

[0035] In step S3.1, the PCIs corresponding to the same frequency of all base station cells in the region and the to-be-deployed cell are obtained.

[0036] In step S3.2, the list of PCIs in the operator planning for the to-be-deployed cell is obtained in combination with the PCI planning of the operator according to the frequency of the to-be-deployed cell.

[0037] In step S3.3, the PCIs corresponding to the same frequency of all base station cells in the region are selected from the list of PCIs in the operator planning for the to-be-deployed cell, and are arranged in descending order from far to near according to the distance between the cell where the PCI is located and the to-be-deployed cell.

[0038] In step S3.4, the PCIs within the range of the neighboring cell of the to-be-deployed cell are deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

[0039] In step S3, the PCIs corresponding to the same frequency are filtered from the data table A and the data table B, so as to obtain a PCI set C;

[0040] In combination with the data table B and the data table D, the list of PCIs in the operator planning for the to-be-deployed cell is calculated, so as to obtain a PCI set B;

[0041] The intersection of the PCI set B and the PCI set C is taken, and the PCIs in the intersection are arranged in descending order from far to near according to the distance between the cell where the PCI is located and the to-be-deployed cell.

[0042] The PCIs corresponding to the range of the neighboring cell in the data table B are deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

[0043] A 5G NR cell PCI automatic planning system, comprising:

[0044] A data acquisition and calculation module is responsible for creating a data table, acquiring the frequency points, longitude and latitude of all base station cells in the region, and the direction angle of the antenna, as well as the frequency points, longitude and latitude, direction angle and adjacent area range of the to-be-deployed cell, and storing them into the data table respectively; calculating the distance between the to-be-deployed cell and all cells in the region, and determining the PCI planning of the operator, i.e. the PCI range list used in each region;

[0045] The data acquisition and calculation module creates the following data tables:

[0046] Data table A is used to save the frequency points, longitude and latitude of all base station cells in the region, and the direction angle of the antenna, as well as the distance between the to-be-deployed cell and all cells in the region;

[0047] Data table B is used to save the frequency points, longitude and latitude, direction angle and adjacent area range of the to-be-deployed cell;

[0048] Data table C is used to save all PCIs specified by 5G NR, numbered from 0 to 1007, a total of 1008;

[0049] Data table D is used to save the PCI planning of the operator, i.e. the PCI range list used in each region.

[0050] A priority deployment module is responsible for acquiring the PCIs corresponding to all the same frequency points between all base station cells in the region and the to-be-deployed cell; according to the frequency points of the to-be-deployed cell, combining the PCI planning of the operator, acquiring the PCI range list of the to-be-deployed cell in the operator planning; finally, according to the PCI range list of the to-be-deployed cell in the operator planning, and filtering out the PCIs corresponding to all the same frequency points between all base station cells in the region and the to-be-deployed cell, obtaining the unused PCI range list of the to-be-deployed cell corresponding to the frequency point;

[0051] If the unused PCI range list of the to-be-deployed cell corresponding to the frequency point is not empty, record and return the output result;

[0052] Otherwise, the secondary deployment module is called;

[0053] The priority deployment module filters out the PCIs corresponding to the same frequency points from data table A and data table B, and deletes the filtered PCIs in data table C to obtain PCI set A;

[0054] Combining data table B and data table D, the PCI range list of the to-be-deployed cell in the operator planning is calculated to obtain PCI set B;

[0055] Take the intersection of the PCI set A and the PCI set B as the PCI range list of the frequency point not used by the to-be-deployed cell.

[0056] The secondary deployment module is responsible for obtaining the PCI corresponding to the same frequency point of all base station cells in the region and all frequency points of the to-be-deployed cell; obtaining the PCI range list of the to-be-deployed cell in the operator planning according to the frequency point of the to-be-deployed cell and combining the PCI planning of the operator; selecting the PCI corresponding to the same frequency point of all base station cells in the region from the PCI range list of the to-be-deployed cell in the operator planning, and arranging them in descending order from far to near according to the distance between the cell and the to-be-deployed cell; deleting the PCI in the neighbor range of the to-be-deployed cell from the sorting table, and selecting the PCI farthest from the planning cell as the result for output.

[0057] The secondary deployment module filters out the PCI corresponding to the same frequency point from the data table A and the data table B to obtain a PCI set C;

[0058] The data table B and the data table D are combined to calculate the PCI range list of the to-be-deployed cell in the operator planning to obtain a PCI set B;

[0059] The intersection of the PCI set B and the PCI set C is taken, and the PCIs in the intersection are arranged in descending order from far to near according to the distance between the cell and the to-be-deployed cell;

[0060] The PCIs corresponding to the neighbor range in the data table B are deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

[0061] A 5G NR cell PCI automatic planning device, characterized by comprising a memory and a processor; the memory is used to store a computer program, and the processor is used to execute the computer program to realize the method as described above.

[0062] A readable storage medium, characterized by storing a computer program on the readable storage medium, and the computer program is executed by a processor to realize the method as described above.

[0063] The 5G NR cell PCI automatic planning method and system can meet the actual needs of 5G network deployment, reduce the unreasonable cell PCI conflict caused by the planning of the pre-stage base station opening and deployment, and improve the network planning and optimization efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0065] Appendix Figure 1 The figure shows the automatic planning method of 5G NR cell PCI. DETAILED DESCRIPTION

[0066] In order to make the person skilled in the art better understand the technical solutions in the present application, the following will combine the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0067] The 5G NR cell PCI automatic planning method automatically plans the physical cell identifier PCI through the longitude and latitude of the base station / cell, the frequency point and the direction angle of the antenna before the deployment of the base station / cell, avoiding the problem of network communication quality decline caused by PCI allocation after deployment;

[0068] The method comprises the following steps:

[0069] Step S1, data acquisition and calculation;

[0070] Step S1.1, create a data table, acquire the frequency point, longitude and latitude of all base station cells in the region and the direction angle of the antenna, and the frequency point, longitude and latitude of the to-be-deployed cell, the direction angle and the range of the adjacent area, and store them in the data table respectively;

[0071] Step S1.2, calculate the distance between the to-be-deployed cell and all cells in the region;

[0072] Step S1.3, determine the PCI planning of the operator, i.e. the PCI range list used in each region;

[0073] In the step S1, the following data table is created:

[0074] Data table A is used to save the frequency point, longitude and latitude of all base station cells in the region and the direction angle of the antenna, and the distance between the to-be-deployed cell and all cells in the region;

[0075] Data table B is used to save the frequency point, longitude and latitude of the to-be-deployed cell, the direction angle and the range of the adjacent area;

[0076] Data table C is used to save all PCIs defined by 5G NR, numbered from 0 to 1007, a total of 1008;

[0077] Data table D is used to save the PCI planning of the operator, i.e. the list of PCI ranges used in each area.

[0078] Step S2, preferentially using the PCI not used by the frequency point corresponding to the to-be-deployed cell;

[0079] Step S2.1, obtaining the PCIs corresponding to all the same frequency points of all base station cells in the area and the to-be-deployed cell;

[0080] Step S2.2, according to the frequency point of the to-be-deployed cell, combining the PCI planning of the operator, obtaining the list of PCI ranges of the to-be-deployed cell in the operator planning;

[0081] Step S2.3, according to the list of PCI ranges of the to-be-deployed cell in the operator planning, and filtering out the PCIs corresponding to all the same frequency points of all base station cells in the area and the to-be-deployed cell, obtaining the list of PCIs not used by the frequency point corresponding to the to-be-deployed cell;

[0082] If the list of PCIs not used by the frequency point corresponding to the to-be-deployed cell is not empty, record and return the output result;

[0083] Otherwise, jump to step S3;

[0084] In step S2, the PCIs corresponding to the same frequency points are filtered out from data table A and data table B, and the filtered PCIs are deleted in data table C to obtain PCI set A;

[0085] Combining data table B and data table D, the list of PCI ranges of the to-be-deployed cell in the operator planning is calculated to obtain PCI set B;

[0086] Taking the intersection of PCI set A and PCI set B as the list of PCIs not used by the frequency point corresponding to the to-be-deployed cell.

[0087] Step S3, selecting the PCI farthest from the planning cell;

[0088] Step S3.1, obtaining the PCIs corresponding to all the same frequency points of all base station cells in the area and the to-be-deployed cell;

[0089] Step S3.2, according to the frequency point of the to-be-deployed cell, combining the PCI planning of the operator, obtaining the list of PCI ranges of the to-be-deployed cell in the operator planning;

[0090] Step S3.3, selecting the PCI corresponding to the same frequency point as all base station cells in the region from the PCI range list of the cell to be deployed in the operator planning, and arranging them in descending order from far to near according to the distance between the cell where the PCI is located and the cell to be deployed;

[0091] Step S3.4, deleting the PCI in the range of the neighboring cell of the cell to be deployed from the sorted table, and selecting the PCI farthest from the planning cell as the result for output.

[0092] In step S3, the PCI corresponding to the same frequency point is selected from data table A and data table B to obtain PCI set C;

[0093] In combination with data table B and data table D, the PCI range list of the cell to be deployed in the operator planning is calculated to obtain PCI set B;

[0094] The intersection of PCI set B and PCI set C is taken, and the PCI in the intersection is arranged in descending order from far to near according to the distance between the cell where the PCI is located and the cell to be deployed;

[0095] The PCI corresponding to the range of the neighboring cell in data table B is deleted from the sorted table, and the PCI farthest from the planning cell is selected as the result for output.

[0096] The 5G NR cell PCI automatic planning system comprises:

[0097] The data acquisition and calculation module is responsible for creating data tables, acquiring the frequency points, latitudes and longitudes of all base station cells in the region and the direction angle of the antenna, and the frequency points, latitudes, longitudes, direction angles and neighboring cell range of the cell to be deployed, and storing them into data tables respectively; calculating the distance between the cell to be deployed and all cells in the region, and determining the PCI planning of the operator, i.e. the PCI range list used in each region;

[0098] The data acquisition and calculation module creates the following data tables:

[0099] Data table A is used to save the frequency points, latitudes and longitudes of all base station cells in the region and the direction angle of the antenna, and the distance between the cell to be deployed and all cells in the region;

[0100] Data table B is used to save the frequency points, latitudes, longitudes, direction angles and neighboring cell range of the cell to be deployed;

[0101] Data table C is used to save all PCIs specified by 5G NR, numbered from 0 to 1007, a total of 1008;

[0102] Data table D is used to save the PCI planning of the operator, i.e. the PCI range list used in each region.

[0103] The priority deployment module is responsible for obtaining the PCIs corresponding to all same frequency points of all base station cells in a region and all same frequency points of a to-be-deployed cell; obtaining a PCI range list of the to-be-deployed cell in an operator plan according to a frequency point of the to-be-deployed cell and in combination with a PCI plan of the operator; and finally obtaining a PCI range list of unused PCIs corresponding to the frequency point of the to-be-deployed cell according to the PCI range list of the to-be-deployed cell in the operator plan and screening the PCIs corresponding to all same frequency points of all base station cells in the region and all same frequency points of the to-be-deployed cell from the PCI range list.

[0104] If the PCI range list of unused PCIs corresponding to the frequency point of the to-be-deployed cell is not empty, the output result is recorded and returned.

[0105] Otherwise, the secondary deployment module is called.

[0106] The priority deployment module screens the PCIs corresponding to the same frequency points from the data table A and the data table B, and deletes the screened PCIs in the data table C to obtain a PCI set A.

[0107] In combination with the data table B and the data table D, the PCI range list of the to-be-deployed cell in the operator plan is calculated to obtain a PCI set B.

[0108] The intersection of the PCI set A and the PCI set B is taken as the PCI range list of unused PCIs corresponding to the frequency point of the to-be-deployed cell.

[0109] The secondary deployment module is responsible for obtaining the PCIs corresponding to all same frequency points of all base station cells in a region and all same frequency points of a to-be-deployed cell; obtaining a PCI range list of the to-be-deployed cell in an operator plan according to a frequency point of the to-be-deployed cell and in combination with a PCI plan of the operator; selecting the PCIs corresponding to the same frequency points of all base station cells in the region from the PCI range list of the to-be-deployed cell in the operator plan, and arranging the PCIs in descending order from far to near according to the distance between the cells where the PCIs are located and the to-be-deployed cell; deleting the PCIs in the neighbor range of the to-be-deployed cell from the sorting table, and selecting the PCI farthest from the planned cell as the result for output.

[0110] The secondary deployment module screens the PCIs corresponding to the same frequency points from the data table A and the data table B to obtain a PCI set C.

[0111] In combination with the data table B and the data table D, the PCI range list of the to-be-deployed cell in the operator plan is calculated to obtain a PCI set B.

[0112] The intersection of the PCI set B and the PCI set C is taken, and the PCIs in the intersection are arranged in descending order from far to near according to the distance between the cells where the PCIs are located and the to-be-deployed cell.

[0113] Delete the PCI corresponding to the range of the adjacent cell of the data table B from the sorting table, select the PCI farthest from the planned cell as the result for output.

[0114] The 5G NR cell PCI automatic planning device comprises a memory and a processor; the memory is used for storing a computer program; and the processor is used for implementing the method as described above when executing the computer program.

[0115] The readable storage medium has a computer program stored thereon; and the computer program is executed by a processor to implement the method as described above.

[0116] The 5G NR cell PCI automatic planning method and system calculate the distance between the cell to be deployed and the cell of the same frequency point that has been deployed based on the parameters such as latitude, longitude, frequency point, antenna direction angle and range of the adjacent cell, and then select the PCI that is not used or farthest from the range in combination with the PCI range list planned by the operator, so that the base station deployed by the PCI planned by the system can effectively avoid the network communication quality decline caused by the network PCI conflict and confusion, and improve the network planning and optimization efficiency.

[0117] The above-described embodiments are only one of the specific embodiments of the present application, and the common changes and replacements made by the person skilled in the art within the scope of the technical scheme of the present application should be included in the protection scope of the present application.

Claims

1. A method for automatic PCI planning in 5G NR cells, characterized in that: Automatic planning of physical cell identity (PCI) through the longitude and latitude of the base station / cell, frequency point and directional angle of the antenna before the deployment of the base station / cell; comprising the following steps: Step S1, data acquisition and calculation; Step S1.1, creating a data table, acquiring the frequency point, longitude and latitude of all base station cells in the region and the directional angle of the antenna, and the frequency point, longitude, latitude, directional angle and adjacent range of the to-be-deployed cell, and storing them into the data table respectively; Step S1.2, calculating the distance between the to-be-deployed cell and all cells in the region; Step S1.3, determining the PCI planning of the operator, i.e. the PCI range list used in each region; Step S2, preferentially using the unused PCI of the corresponding frequency point of the to-be-deployed cell; Step S2.1, acquiring the corresponding PCI of all the same frequency points of all base station cells in the region and the to-be-deployed cell; Step S2.2, acquiring the PCI range list of the to-be-deployed cell in the operator planning according to the frequency point of the to-be-deployed cell and combining the PCI planning of the operator; Step S2.3, selecting the unused PCI range list of the corresponding frequency point of the to-be-deployed cell from the PCI range list of the to-be-deployed cell in the operator planning and all the corresponding PCI of the same frequency points of all base station cells in the region and the to-be-deployed cell; If the unused PCI range list of the corresponding frequency point of the to-be-deployed cell is not empty, record and return the output result; Otherwise, jump to step S3; Step S3, selecting the farthest PCI from the planned cell; Step S3.1, acquiring the corresponding PCI of all the same frequency points of all base station cells in the region and the to-be-deployed cell; Step S3.2, acquiring the PCI range list of the to-be-deployed cell in the operator planning according to the frequency point of the to-be-deployed cell and combining the PCI planning of the operator; Step S3.3, selecting the corresponding PCI of the same frequency points from the PCI range list of the to-be-deployed cell in the operator planning and arranging them in descending order from far to near according to the distance between the cells and the to-be-deployed cell; Step S3.4, deleting the PCI within the adjacent range of the to-be-deployed cell from the sorting table and selecting the farthest PCI from the planned cell as the result for output.

2. The 5G NR cell PCI auto-planning method of claim 1, wherein: In step S1, the following data tables are created: Data table A is used to save the frequency point, longitude and latitude of all base station cells in the region and the directional angle of the antenna, and the distance between the to-be-deployed cell and all cells in the region; Data table B is used to save the frequency point, longitude, latitude and directional angle of the to-be-deployed cell and the adjacent range; Data table C is used to save all PCIs specified by 5G NR, numbered from 0 to 1007, a total of 1008; Data table D is used to save the PCI planning of the operator, i.e. the PCI range list used in each region.

3. The 5G NR cell PCI auto-planning method of claim 2, wherein: In step S2, the corresponding PCI of the same frequency points is selected from data table A and data table B, and the selected PCI is deleted from data table C to obtain PCI set A; Combining data table B and data table D, the PCI range list of the to-be-deployed cell in the operator planning is calculated to obtain PCI set B; Taking the intersection of the PCI set A and the PCI set B as the PCI range list which is not used by the frequency point corresponding to the to-be-deployed cell.

4. The method of claim 2, wherein: In the step S3, the same frequency point corresponding PCI is filtered from the data table A and the data table B to obtain a PCI set C. In combination with the data table B and the data table D, the PCI range list of the to-be-deployed cell in the operator planning is calculated to obtain a PCI set B. Taking the intersection of the PCI set B and the PCI set C, and arranging the PCI in the intersection in descending order from far to near according to the distance between the cell where the PCI is located and the to-be-deployed cell. The PCI corresponding to the neighboring cell range in the data table B is deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

5. A 5G NR cell PCI auto-planning system, characterized in that: It comprises: A data acquisition and calculation module is responsible for creating data tables, acquiring the frequency points, longitude and latitude and the directional angle of the antenna of all base station cells in the region, and the frequency points, longitude and latitude, directional angle and neighboring cell range of the to-be-deployed cell, and storing them into data tables respectively. The distance between the to-be-deployed cell and all cells in the region is calculated, and the PCI planning of the operator, i.e. the PCI range list used in each region, is determined. A priority deployment module is responsible for acquiring the same frequency point corresponding PCI of all base station cells in the region and the to-be-deployed cell; according to the frequency point of the to-be-deployed cell, the PCI range list of the to-be-deployed cell in the operator planning is acquired in combination with the PCI planning of the operator. Finally, the same frequency point corresponding PCI of all base station cells in the region and the to-be-deployed cell is filtered from the PCI range list of the to-be-deployed cell in the operator planning to obtain the PCI range list which is not used by the frequency point corresponding to the to-be-deployed cell. If the PCI range list which is not used by the frequency point corresponding to the to-be-deployed cell is not empty, the output result is recorded and returned. Otherwise, the secondary deployment module is called. The secondary deployment module is responsible for acquiring the same frequency point corresponding PCI of all base station cells in the region and the to-be-deployed cell; according to the frequency point of the to-be-deployed cell, the PCI range list of the to-be-deployed cell in the operator planning is acquired in combination with the PCI planning of the operator. The same frequency point corresponding PCI is selected from the PCI range list of the to-be-deployed cell in the operator planning, and is arranged in descending order from far to near according to the distance between the cell where the PCI is located and the to-be-deployed cell. The PCI in the neighboring cell range of the to-be-deployed cell is deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

6. The 5G NR cell PCI auto-planning system of claim 5, wherein: The data acquisition and calculation module creates the following data tables: The data table A is used to save the frequency points, longitude and latitude and the directional angle of the antenna of all base station cells in the region, and the distance between the to-be-deployed cell and all cells in the region. The data table B is used to save the frequency points, longitude and latitude, directional angle and neighboring cell range of the to-be-deployed cell. The data table C is used to save all PCIs specified by 5G NR, numbered from 0 to 1007, a total of 1008. The data table D is used to save the PCI planning of the operator, i.e. the PCI range list used in each region.

7. The 5G NR cell PCI auto-planning system of claim 6, wherein: The priority deployment module screens the same frequency point corresponding PCI from the data table A and the data table B, and deletes the screened PCI in the data table C to obtain a PCI set A; The data table B and the data table D are combined to calculate the PCI range list of the to-be-deployed cell in the operator planning to obtain a PCI set B; The intersection of the PCI set A and the PCI set B is taken as the unused PCI range list of the corresponding frequency point of the to-be-deployed cell.

8. The 5G NR cell PCI auto-planning system of claim 6, wherein: The secondary deployment module screens the same frequency point corresponding PCI from the data table A and the data table B to obtain a PCI set C; The data table B and the data table D are combined to calculate the PCI range list of the to-be-deployed cell in the operator planning to obtain a PCI set B; The intersection of the PCI set B and the PCI set C is taken, and the PCI in the intersection is arranged in descending order from far to near according to the distance between the cell where the PCI is located and the to-be-deployed cell; The PCI corresponding to the range of the neighboring cell in the data table B is deleted from the sorting table, and the PCI farthest from the planning cell is selected as the result for output.

9. A 5G NR cell PCI auto-planning device, characterized by: The memory is used for storing a computer program, and the processor is used for implementing the method in any one of claims 1 to 4 when the computer program is executed.

10. A readable storage medium, characterized by: The computer program is stored on the readable storage medium, and the computer program is executed by the processor to implement the method in any one of claims 1 to 4.

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