Method, device, equipment and storage medium for positioning in uplink coverage-limited areas

Abstract

The present invention discloses a positioning method, apparatus, device and storage medium for an uplink coverage restricted area. Terminals accessing a first frequency band are screened out from all cells. When any terminal accesses the first frequency band through a radio resource control protocol, the terminal is determined to be a target terminal switching from a second frequency band to a first frequency band. Since the frequency band switching execution triggers the radio resource control protocol, when it is determined that the terminal accesses the first frequency band through the radio resource control protocol, it indicates that the frequency band switching operation is caused by the limited uplink coverage of the second frequency band. The moving speed of the target terminal is monitored. If the movement is slow, it indicates that the area currently located by the terminal can represent the wireless environment of the second frequency band before the switching. Then, the uplink coverage restricted area is obtained by locating the range corresponding to the target sampling point. The area with uplink coverage restricted in the NR TDD cell can be accurately located, thereby enhancing the uplink coverage performance of the uplink coverage restricted area.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a method, device, equipment and storage medium for locating an uplink coverage limited area. Background Art

[0002] The 5G network NR TDD (New Radio Time Division Duplexing) standard uses a large bandwidth and high frequency band for networking. The characteristics of its high frequency band will lead to large loss of 5G wireless signals. In the downlink, the base station compensates for the downlink propagation loss by increasing the transmit power and configuring multi-port antennas to improve the downlink coverage performance. However, in the uplink, the transmit power of the UE (User Equipment) and the antenna port configuration of the terminal are significantly different from those on the base station side. During the use of the service, users will first encounter the problem of poor service use due to limited uplink coverage performance. Currently, the problem of insufficient uplink coverage performance is solved by switching frequency bands. For example, when the uplink coverage performance of the n41 band is limited, it is switched to the n28 band. However, new problems still arise after completing the frequency band switching. The current 5G network and 5G terminals do not support carrier aggregation of two frequency bands. 5G terminals can only choose to reside in one of the frequency bands and cannot support both large downlink bandwidth and strong uplink coverage. For 5G terminals that do not support the n28 frequency band, user perception can only be guaranteed by enhancing the uplink coverage performance of the n41 frequency band. Therefore, it is particularly important to accurately locate areas with limited uplink coverage.

[0003] Currently, the NR TDD network evaluates the uplink coverage performance through OMC (Operation and Maintenance Center) statistical indicators such as the average, maximum, and minimum values ​​of the uplink PRB (Physical Resource Block) level intensity. However, the above indicators are statistical values ​​for 5G users during service use and are summarized at the cell level. They cannot accurately reflect the uplink coverage performance of the 5G network, resulting in inaccurate positioning of the cell's uplink coverage-restricted area. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a method, apparatus, device and storage medium for positioning an uplink coverage-restricted area, which can accurately locate the area with uplink coverage restriction in the NR TDD cell, thereby enhancing the uplink coverage performance of this uplink coverage-restricted area.

[0005] To achieve the above objectives, an embodiment of the present invention provides a positioning method for an uplink coverage-limited area, comprising:

[0006] Screening out terminals accessing a first frequency band in all cells, and detecting a frequency band access mode used by the terminals to access the first frequency band;

[0007] When any terminal accesses the first frequency band through a radio resource control protocol, determining that the terminal is a target terminal for switching from the second frequency band to the first frequency band; wherein the access priority of the first frequency band is lower than that of the second frequency band;

[0008] Calculate the moving speed of all target terminals;

[0009] When the moving speed of the target terminal is less than the set speed, the target sampling points whose neighboring cell inter-frequency is the second frequency band are screened out according to the MR sampling points corresponding to all target terminals whose moving speed is less than the set speed;

[0010] The range corresponding to the target sampling point is used as the uplink coverage restricted area of ​​the current cell in the second frequency band.

[0011] As an improvement to the above solution, the calculation of the moving speeds of all target terminals includes:

[0012] Obtaining an initial time at which the target terminal switches to the first frequency band;

[0013] Determining a moving trajectory of the target terminal according to the latitude and longitude information of the target terminal;

[0014] The moving speeds of all target terminals are calculated according to the moving trajectory, the initial time and the current time.

[0015] As an improvement to the above solution, the longitude and latitude information is obtained from MDT data of the target terminal.

[0016] As an improvement to the above solution, after taking the range corresponding to the target sampling point as the uplink coverage restricted area of ​​the current cell in the second frequency band, the method further includes:

[0017] Screening out terminals accessing the second frequency band in the uplink coverage limited area;

[0018] When the number of terminals accessing the second frequency band is greater than a number threshold, an antenna feeder system optimization operation is performed on the current cell.

[0019] As an improvement to the above solution, screening out terminals accessing the first frequency band from all cells includes:

[0020] Terminals accessing the first frequency band are screened out from all cells based on the signaling monitoring data of the network.

[0021] As an improvement to the above solution, the signaling monitoring data is data based on an access mobility management function and a user name function.

[0022] To achieve the above objectives, an embodiment of the present invention further provides a positioning device for an uplink coverage-limited area, comprising:

[0023] a terminal access mode detection module, configured to screen out terminals accessing a first frequency band from all cells, and detect a frequency band access mode used by the terminals to access the first frequency band;

[0024] a target terminal determination module, configured to, when any terminal accesses the first frequency band through a radio resource control protocol, determine that the terminal is a target terminal for switching from the second frequency band to the first frequency band; wherein the access priority of the first frequency band is lower than that of the second frequency band;

[0025] A moving speed calculation module is used to calculate the moving speed of all target terminals;

[0026] a target sampling point determination module, configured to, when the moving speed of the target terminal is less than a set speed, screen out target sampling points whose neighboring cell inter-frequency is the second frequency band based on MR sampling points corresponding to all target terminals whose moving speed is less than the set speed;

[0027] The uplink coverage limited area positioning module is configured to use the range corresponding to the target sampling point as the uplink coverage limited area of ​​the current cell in the second frequency band.

[0028] As an improvement to the above solution, the device further includes:

[0029] The antenna feed optimization module is configured to screen out terminals accessing the second frequency band in the uplink coverage limited area, and perform antenna feed system optimization operations on the current cell when the number of terminals accessing the second frequency band is greater than a number threshold.

[0030] To achieve the above-mentioned objectives, an embodiment of the present invention also provides a positioning device for an uplink coverage restricted area, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, it implements the positioning method for an uplink coverage restricted area as described in any of the above embodiments.

[0031] To achieve the above-mentioned purpose, an embodiment of the present invention also provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the positioning method for the uplink coverage restricted area as described in any of the above embodiments.

[0032] Compared with the prior art, the present invention discloses a method, apparatus, device and storage medium for locating an uplink coverage-restricted area, which screens out terminals accessing the first frequency band from all cells. When any terminal accesses the first frequency band through a radio resource control protocol, the terminal is determined to be a target terminal switching from the second frequency band to the first frequency band. Since the frequency band switching execution triggers the radio resource control protocol, when it is determined that the terminal accesses the first frequency band through the radio resource control protocol, it indicates that the frequency band switching operation is caused by the limited uplink coverage of the second frequency band. At this time, the moving speed of the target terminal is monitored. If the movement is slow, it indicates that the current area of ​​the terminal can represent the wireless environment of the second frequency band before the switching. Then, by locating the range corresponding to the target sampling point of the second frequency band in the neighboring cell with different frequencies, the uplink coverage-restricted area of ​​the current cell in the second frequency band is obtained, which can accurately locate the area with uplink coverage restriction in the NR TDD cell, thereby enhancing the uplink coverage performance of this uplink coverage-restricted area. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a flow chart of a positioning method for an uplink coverage limited area provided by an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the wireless operation and maintenance workstation connected to network elements and monitoring interfaces provided by an embodiment of the present invention;

[0035] Figure 3 This is a structural block diagram of a positioning device for an uplink coverage-limited area provided by an embodiment of the present invention;

[0036] Figure 4 This is a structural block diagram of a positioning device for an uplink coverage-limited area provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figure 1 , Figure 1 1 is a flowchart of a method for locating an uplink coverage-limited area provided by an embodiment of the present invention, the method for locating an uplink coverage-limited area comprising:

[0039] S1. Screening out terminals accessing a first frequency band from all cells, and detecting a frequency band access mode for the terminals to access the first frequency band;

[0040] S2. When any terminal accesses the first frequency band through a radio resource control protocol, determine that the terminal is a target terminal for switching from the second frequency band to the first frequency band;

[0041] S3. Calculate the moving speed of all target terminals;

[0042] S4. When the moving speed of the target terminal is less than the set speed, based on the MR sampling points corresponding to all target terminals whose moving speeds are less than the set speed, select target sampling points whose neighboring cell inter-frequency is in the second frequency band;

[0043] S5. Take the range corresponding to the target sampling point as the uplink coverage restricted area of ​​the current cell in the second frequency band.

[0044] Specifically, in step S1, terminals accessing the first frequency band are screened out in all cells according to the signaling monitoring data of the network, where the signaling monitoring data is data based on the access mobility management function (AMF, Access and Mobility Management Function) and the user name function (UPF, User Plane Function).

[0045] For example, see Figure 2 The wireless operation and maintenance workstation collects 5G network AMF and UPF signaling monitoring data. The wireless operation and maintenance workstation connects to the 5G radio access network (RAN) and the 5G core network AMF and UPF, monitors the N1, N2, and N3 interface signaling and data flows, and screens 5G UEs connected to all 5G cells in the first frequency band, which is the n28 band.

[0046] It's worth noting that the Wireless Operations and Maintenance Workbench is the platform for all wireless network operations applications. It deploys self-developed application-related functions based on a "1+6+N" model. "1" refers to a unified wireless data collection and sharing module for the entire network, enabling unified data collection and sharing. The "6" core application modules include centralized network optimization, network management and coverage analysis, interference diagnosis and analysis, capacity analysis and optimization, wireless parameter management and analysis optimization, and centralized wireless network operation and maintenance. "N" refers to specialized applications developed to meet specific scenarios, specific services, specific personnel, and specific network requirements. AMF is a core 5G network function that directly manages 5G wireless access requests and performs registration, connection, reachability, and mobility management. UPF is also a core 5G network function, encompassing user data packet routing and forwarding, data exchange with external data networks (DNs), user plane QoS processing, and flow control rule enforcement (such as gating, redirection, and traffic steering). The N1 interface is the signaling interface between the UE and AMF, the N2 interface is the signaling interface between the RAN and AMF, and the N3 interface is the interface between the RAN and the UPF. It is mainly used to transmit uplink and downlink user plane data between the RAN and the UPF. The DN (data network) is for operator services, the Internet, or third-party services.

[0047] Specifically, in step S2, the access priority of the first frequency band is lower than that of the second frequency band, which is the n41 frequency band. Because the n28 frequency band has a spectrum advantage in the 5G network and better coverage performance than other frequency bands, its access priority is set to the lowest in the 5G network. If a 5G terminal is found to establish access to the 5G network through an RRC (Radio Resource Control) connection, it indicates that the uplink coverage of the n41 frequency band is limited.

[0048] Furthermore, due to the large number of UEs in a cell, in order to improve the judgment accuracy, if the number of UEs accessing the 5G network through RRC is greater than N (such as N ≥ 10), it means that the uplink coverage of the n41 frequency band is limited. Only when it is detected that there are at least N UEs accessing the n28 frequency band through RRC in the cell, these N terminals are used as target terminals.

[0049] Exemplarily, the RRC connection establishment process is: when a UE in an idle state needs to initiate voice and data services, it initiates an RRC establishment request to trigger state migration from the idle state to the connected state. When it is necessary to initiate management of SRB (Signalling radio bearer) and DRB (Data Radio Bearer), low-layer parameter configuration, frequency band switching execution and measurement control, the RRC connection will be triggered. Therefore, if there is any terminal that accesses the first frequency band through the radio resource control protocol, it can be determined that the RRC connection triggered by the terminal needs to execute "frequency band switching", and at this time, it is determined that the terminal is the target terminal that switches from the second frequency band to the first frequency band. Since the coverage performance of the n28 frequency band is better than other frequency bands, if it is found that a 5G terminal accesses the 5G network through an RRC connection, it indicates that its n41 frequency band uplink coverage is limited, thereby causing the target terminal to switch the n41 frequency band to the n28 frequency band.

[0050] Specifically, in step S3, the calculation of the moving speeds of all target terminals includes:

[0051] S31. Obtaining an initial time when the target terminal switches to the first frequency band;

[0052] S32. Determine the moving trajectory of the target terminal according to the latitude and longitude information of the target terminal;

[0053] S33. Calculate the moving speeds of all target terminals according to the moving trajectory, the initial time, and the current time.

[0054] Exemplarily, the initial time when the target terminal switches to the first frequency band is obtained through 5G network AMF and UPF signaling monitoring data. MR and MDT sampling point data corresponding to the terminal in the n28 frequency band 5G cell is collected. The latitude and longitude information is obtained from the MDT data of the target terminal. The movement trajectory of the target terminal can be determined based on the latitude and longitude information extracted from the MDT data of the n28 frequency band 5G cell. A time change value is obtained based on the initial time and the current time, and the ratio of the moving distance of the movement trajectory to the time change value is calculated as the movement speed of the target terminal.

[0055] It's worth noting that the Measurement Report (MR) is the primary basis for assessing wireless environment quality. MR refers to information sent every 480ms on the traffic channel (470ms on the signaling channel). In GSM systems, MR is the network's primary means of obtaining terminal wireless information. It primarily consists of two components: uplink signal information and downlink signal information. MR data reported by terminals can be used to trigger events such as cell selection, reselection, and handover in LTE (Long Term Evolution) systems. It can also be used to maintain and monitor the operational status of LTE systems. MR data includes various parameters indicating terminal network quality, such as Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ). Minimization of Drive-Test (MDT) is also a drive test feature introduced in LTE systems. Unlike MR, MDT data collection requires the Global Positioning System (GPS) function to be enabled. When GPS is enabled and the terminal supports MDT, MDT data, including terminal location information, can be reported to the base station. Since MDT data is collected when the GPS function is turned on in the terminal, compared with MR data, MDT data includes not only the information of MR data but also the latitude and longitude information determined by the GPS function.

[0056] Specifically, in steps S4 to S5, the moving speed of the target terminal is compared with the set speed. If the moving speed of the target terminal is less than the set speed, it means that the target terminal moves slowly and its activity range is small. Therefore, the current area where the target terminal is located can represent the wireless environment of the n41 frequency band before switching. At this time, the sampling points of all sampling points of the n28 frequency band 5G cell whose different frequency points are the n41 frequency band are selected as target sampling points, and the different frequency points are the n41 frequency band. It is further ensured that the terminal is within the coverage range of the n41 frequency band before switching, and the frequency band before switching is the n41 frequency band. The sampling range corresponding to the target sampling point is the uplink coverage restricted area of ​​the current cell in the second frequency band, and the range corresponding to all the selected target sampling points is the uplink coverage restricted range of the NR TDD n41 cell.

[0057] In an embodiment of the present invention, since the execution of frequency band switching will trigger the wireless resource control protocol, when it is determined that the terminal accesses the first frequency band through the wireless resource control protocol, it indicates that the frequency band switching operation is caused by the limited uplink coverage of the second frequency band. The moving speed of the target terminal is monitored. If the movement is slow, it indicates that the current area where the terminal is located can represent the wireless environment of the second frequency band before the switching. Then, by locating the range corresponding to the target sampling point, the uplink coverage limited area is obtained, and the area with limited uplink coverage in the NR TDD cell can be accurately located, thereby enhancing the uplink coverage performance of this uplink coverage limited area.

[0058] Furthermore, after the range corresponding to the target sampling point is used as the uplink coverage restricted area of ​​the current cell in the second frequency band, the method further includes:

[0059] S6. Screening out terminals accessing the second frequency band in the uplink coverage-limited area;

[0060] S7: When the number of terminals accessing the second frequency band is greater than a number threshold, perform an antenna feeder system optimization operation on the current cell.

[0061] For example, antenna and feeder system optimization operations are performed on n41 band cells where the uplink coverage performance of NR TDD n41 band is limited and the proportion of 5G terminals that do not support n28 band is relatively high. Such cells can only ensure user perception by enhancing the uplink coverage of the cell itself. If necessary, it is necessary to consider building a new n41 base station to enhance the uplink coverage performance.

[0062] The method for locating areas with limited uplink coverage disclosed in this invention breaks through the traditional method of evaluating the uplink coverage performance of NRTDD cells through OMC statistics. By using signaling monitoring data from 5G users accessing the n28 frequency band, it can accurately locate whether NRTDD cells have limited uplink coverage. In addition, by using a wireless operation and maintenance workstation to collect the time points when 5G UEs switch to the n28 frequency band, and using the MR and MDT sampling point data of the 5G cell, the MDT sampling points are used to determine the movement speed of the 5G UE. Based on the slow-moving UE, the wireless environment of the n41 frequency band where the UE was located before the switch can be accurately characterized.

[0063] See also Figure 3 , Figure 3 1 is a structural block diagram of a positioning device 100 for an uplink coverage-limited area provided by an embodiment of the present invention. The positioning device 100 for an uplink coverage-limited area includes:

[0064] The terminal access mode detection module 11 is used to screen out terminals accessing the first frequency band from all cells and detect the frequency band access mode used by the terminals to access the first frequency band;

[0065] a target terminal determination module 12, configured to, when any terminal accesses the first frequency band through a radio resource control protocol, determine that the terminal is a target terminal switching from the second frequency band to the first frequency band; wherein the access priority of the first frequency band is lower than that of the second frequency band;

[0066] A moving speed calculation module 13 is used to calculate the moving speed of all target terminals;

[0067] a target sampling point determination module 14, configured to, when the moving speed of the target terminal is less than a set speed, screen out target sampling points whose neighboring cell inter-frequency is in the second frequency band based on MR sampling points corresponding to all target terminals whose moving speed is less than the set speed;

[0068] The uplink coverage limited area positioning module 15 is configured to use the range corresponding to the target sampling point as the uplink coverage limited area of ​​the current cell in the second frequency band.

[0069] Specifically, the positioning device 100 for an uplink coverage limited area further includes:

[0070] The antenna feed optimization module is configured to screen out terminals accessing the second frequency band in the uplink coverage limited area, and perform antenna feed system optimization operations on the current cell when the number of terminals accessing the second frequency band is greater than a number threshold.

[0071] Specifically, the moving speed calculation module 13 is used to: obtain the initial time when the target terminal switches to the first frequency band; determine the moving trajectory of the target terminal according to the latitude and longitude information of the target terminal; and calculate the moving speed of all target terminals according to the moving trajectory, the initial time and the current time.

[0072] Specifically, the longitude and latitude information is obtained from MDT data of the target terminal.

[0073] Specifically, the terminal access mode detection module 11 is used to filter out terminals accessing the first frequency band from all cells based on network signaling monitoring data, wherein the signaling monitoring data is data based on access mobility management function and user name function.

[0074] It is worth noting that the working process of each module in the positioning device 100 for an uplink coverage limited area according to the embodiment of the present invention can refer to the working process of the positioning method for an uplink coverage limited area according to the above embodiment, and will not be repeated here.

[0075] The device 100 for positioning an uplink coverage-restricted area disclosed in the present invention screens out terminals accessing the first frequency band from all cells. When any terminal accesses the first frequency band through a radio resource control protocol, the device determines that the terminal is a target terminal switching from the second frequency band to the first frequency band. Since the frequency band switching execution triggers the radio resource control protocol, when it is determined that the terminal accesses the first frequency band through the radio resource control protocol, it indicates that the frequency band switching operation is caused by the limited uplink coverage of the second frequency band. At this time, the moving speed of the target terminal is monitored. If the movement is slow, it indicates that the area where the terminal is currently located can represent the wireless environment of the second frequency band before the switching. Then, by locating the range corresponding to the target sampling point of the second frequency band in the neighboring cell with different frequencies, the uplink coverage-restricted area of ​​the current cell in the second frequency band is obtained, which can accurately locate the area with uplink coverage restriction in the NR TDD cell, thereby enhancing the uplink coverage performance of this uplink coverage-restricted area.

[0076] In addition, the positioning device 100 for uplink coverage-limited areas disclosed in the present invention breaks through the traditional method of evaluating the uplink coverage performance of NR TDD cells through OMC statistics. By accessing the signaling monitoring data of 5G users in the n28 frequency band, it can accurately locate whether the NR TDD cell has limited uplink coverage. In addition, by using the wireless operation and maintenance workstation to collect the time point when the 5G UE switches to the n28 frequency band, and using the MR and MDT sampling point data of the 5G cell, the 5G UE's position movement speed is determined by the MDT sampling point. Based on the slow-moving UE, the wireless environment of the n41 frequency band where the UE was located before the switch can be accurately characterized.

[0077] See also Figure 4 , Figure 4 2 is a block diagram of a positioning device 200 for an uplink coverage-limited area provided in an embodiment of the present invention. The positioning device 200 for an uplink coverage-limited area includes a processor 21, a memory 22, and a computer program stored in the memory 22 and executable on the processor 21. When the processor 21 executes the computer program, the steps of the above-mentioned positioning method for an uplink coverage-limited area are implemented, such as steps S1 to S5.

[0078] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory 22 and executed by the processor 21 to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program in the positioning device 200 in the uplink coverage limited area.

[0079] The positioning device 200 for an area with limited uplink coverage may include, but is not limited to, a processor 21 and a memory 22. Those skilled in the art will appreciate that the schematic diagram is merely an example of the positioning device 200 for an area with limited uplink coverage and does not limit the positioning device 200 for an area with limited uplink coverage. The positioning device 200 may include more or fewer components than shown in the diagram, or may combine certain components or different components. For example, the positioning device 200 for an area with limited uplink coverage may further include input and output devices, network access devices, buses, and the like.

[0080] The processor 21 may be a central processing unit (CPU), or other general-purpose processors, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor 21 is the control center of the positioning device 200 for the uplink coverage-limited area, and utilizes various interfaces and lines to connect various parts of the positioning device 200 for the uplink coverage-limited area.

[0081] The memory 22 can be used to store the computer programs and / or modules. The processor 21 implements the various functions of the positioning device 200 for an uplink coverage-restricted area by running or executing the computer programs and / or modules stored in the memory 22 and accessing the data stored in the memory 22. The memory 22 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function (such as a sound playback function or an image playback function); the data storage area may store data generated based on the use of the mobile phone (such as audio data, a phone book, etc.). Furthermore, the memory 22 may include high-speed random access memory and non-volatile memory, such as a hard disk, internal memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0082] Wherein, if the modules / units integrated in the positioning device 200 for the uplink coverage limited area are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor 21, it can implement the steps of the above-mentioned various method embodiments. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can include: any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0083] The above is a preferred embodiment of the present invention. 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 invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A positioning method for an area with limited uplink coverage, characterized in that: include: Screening out terminals accessing a first frequency band in all cells, and detecting a frequency band access mode used by the terminals to access the first frequency band; When any terminal accesses the first frequency band through a radio resource control protocol, determining that the terminal is a target terminal for switching from the second frequency band to the first frequency band; wherein the access priority of the first frequency band is lower than that of the second frequency band; Calculate the moving speed of all target terminals; When the moving speed of the target terminal is less than the set speed, the target sampling points whose neighboring cell inter-frequency is the second frequency band are screened out according to the MR sampling points corresponding to all target terminals whose moving speed is less than the set speed; The range corresponding to the target sampling point is used as the uplink coverage restricted area of ​​the current cell in the second frequency band.

2. The method for positioning an uplink coverage limited area according to claim 1, wherein: The calculation of the moving speeds of all target terminals includes: Obtaining an initial time at which the target terminal switches to the first frequency band; Determining a moving trajectory of the target terminal according to the latitude and longitude information of the target terminal; The moving speeds of all target terminals are calculated according to the moving trajectory, the initial time and the current time.

3. The method for positioning an uplink coverage limited area according to claim 2, wherein: The latitude and longitude information is obtained from the MDT data of the target terminal.

4. The method for positioning an uplink coverage-limited area according to claim 1, wherein: After the range corresponding to the target sampling point is used as the uplink coverage restricted area of ​​the current cell in the second frequency band, the method further includes: Screening out terminals accessing the second frequency band in the uplink coverage limited area; When the number of terminals accessing the second frequency band is greater than a number threshold, an antenna feeder system optimization operation is performed on the current cell.

5. The method for positioning an uplink coverage limited area according to claim 1, wherein: The screening out terminals accessing the first frequency band from all cells includes: Terminals accessing the first frequency band are screened out from all cells based on the signaling monitoring data of the network.

6. The method for positioning an uplink coverage limited area according to claim 5, wherein: The signaling monitoring data is data based on an access mobility management function and a user name function.

7. A positioning device for an area with limited uplink coverage, characterized in that: include: a terminal access mode detection module, configured to screen out terminals accessing a first frequency band from all cells, and detect a frequency band access mode used by the terminals to access the first frequency band; a target terminal determination module, configured to, when any terminal accesses the first frequency band through a radio resource control protocol, determine that the terminal is a target terminal for switching from the second frequency band to the first frequency band; wherein the access priority of the first frequency band is lower than that of the second frequency band; A moving speed calculation module is used to calculate the moving speed of all target terminals; a target sampling point determination module, configured to, when the moving speed of the target terminal is less than a set speed, screen out target sampling points whose neighboring cell inter-frequency is the second frequency band based on MR sampling points corresponding to all target terminals whose moving speed is less than the set speed; The uplink coverage limited area positioning module is configured to use the range corresponding to the target sampling point as the uplink coverage limited area of ​​the current cell in the second frequency band.

8. The positioning device for an area with limited uplink coverage according to claim 7, wherein: The device further comprises: The antenna feed optimization module is configured to screen out terminals accessing the second frequency band in the uplink coverage limited area, and perform antenna feed system optimization operations on the current cell when the number of terminals accessing the second frequency band is greater than a number threshold.

9. A positioning device for an area with limited uplink coverage, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the method for positioning an uplink coverage limited area according to any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for positioning an uplink coverage limited area according to any one of claims 1 to 6.

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