Regional signal shielding method and device, electronic equipment and storage medium

Abstract

The invention discloses a regional signal shielding method and device, electronic equipment and a storage medium, and belongs to the technical field of wireless communication networks. The shielding method comprises the steps that a main service cell and an associated neighbor cell of a target shielding area are acquired, and the associated neighbor cell refers to a neighbor cell whose reference signal received power (RSRP) difference value with the main service cell is smaller than a first threshold value; adjusting the parameter configuration of the main service cell and the associated neighbor cell to enable the mobile terminal to continuously reside in the main service cell, the parameter configuration comprising a priority, a switching parameter and a reselection threshold; and performing data service blocking control on the main service cell. According to the method, the problems that the shielding range is not accurate enough, the shielding effect is not stable, and the communication experience of surrounding residents is affected in the prior art can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless communication networks, and in particular relates to a method and device for shielding regional signals, an electronic device, and a computer-readable storage medium. Background Art

[0002] Currently, there are three methods for signal shielding in specific areas (such as examination venues and scientific research venues):

[0003] The first is regional network frequency reduction. Operators adjust the power parameters of base stations around a specific area, reducing base station transmission power to shorten coverage and place specific areas in signal coverage blind spots.

[0004] The second method is to deploy directional jammers. Radio jammers are deployed in a specific area to suppress the uplink and downlink of communication equipment by transmitting high-power co-frequency signals, thereby blocking the communication connection between mobile terminals and base stations.

[0005] The third method is a hybrid shielding solution. This combines the two methods above and enhances the signal shielding effect by superimposing the dual effects of frequency reduction and interference.

[0006] The above signal shielding method has the following problems:

[0007] (1) Signal coverage outage: When regional network frequency reduction is used, due to the inherent overlapping coverage characteristics of cellular networks, the parameters of multiple base stations within a 1 km coverage radius need to be adjusted simultaneously. This operation will cause the service capacity of base stations in surrounding residential areas to decline, resulting in large-scale communication quality degradation, and may cause group communication problems in emergency scenarios.

[0008] (2) Insufficient interference accuracy: Existing interference equipment uses full-band suppression technology, and its interference radius exceeds the protection range of a specific area, causing co-frequency interference to the uplink of adjacent base stations, resulting in a decrease in mobile communication connection rate in the surrounding area and deterioration of call quality.

[0009] (3) Signal switching mechanism defects: The mobile terminal will trigger the automatic reselection mechanism in the down-frequency area, and may access non-target cells, resulting in shielding failure.

[0010] In summary, the current signal shielding methods have problems such as inaccurate shielding range, unstable shielding effect, and impact on the communication experience of surrounding residents. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the existing technology and provide a regional signal shielding method and device, electronic equipment, and computer-readable storage medium. While completing signal shielding, the signal shielding area can be precisely controlled, reducing the impact on communications of surrounding base stations and normal residents.

[0012] In the first aspect, the present invention provides a method for shielding regional signals, comprising: obtaining a main service cell and associated neighboring cells in a target shielding area, wherein the associated neighboring cells refer to neighboring cells whose difference in reference signal received power RSRP (Reference Signal Received Power) with the main service cell is less than a first threshold; adjusting the parameter configuration of the main service cell and the associated neighboring cells so that the mobile terminal can continuously reside in the main service cell, the parameter configuration including priority, switching parameters, and reselection threshold; and performing data service blocking control on the main service cell.

[0013] In some embodiments, obtaining the main service cell and associated neighboring cells of the target shielded area specifically includes: obtaining the base station signal test results of the target shielded area, wherein the test results include physical cell identification, RSRP, signal interference and noise ratio, neighboring cell list, measurement report, and system broadcast message; parsing the test results, and identifying the main service cell and associated neighboring cells of the target shielded area.

[0014] In some embodiments, after adjusting the parameter configuration of the main service cell and the associated neighboring cells so that the mobile terminal continues to reside in the main service cell, and before performing data service blocking control on the main service cell, the shielding method also includes: verifying whether the mobile terminal continues to reside in the main service cell; in response to the mobile terminal not continuing to reside in the main service cell, re-acquiring the main service cell and the associated neighboring cells of the target shielding area, and adjusting the parameter configuration of the main service cell and the associated neighboring cells until the mobile terminal continues to reside in the main service cell.

[0015] In some embodiments, the parameter configuration of the main service cell and the associated neighboring cells are adjusted so that the mobile terminal can continuously reside in the main service cell, specifically including: adjusting the idle state reselection priority of the main service cell and the associated neighboring cells; adjusting the connected state cell switching parameters of the main service cell; adjusting the minimum access threshold and reselection threshold of the main service cell to the second threshold, and the second threshold value is -130dBm.

[0016] In some embodiments, the idle state reselection priority of the main service cell and the associated neighboring cell is adjusted, specifically including: adjusting the idle state priority of the main service cell to N, and the idle state priority of the associated neighboring cell to N-1; adjusting the RSRP threshold for reselection from a high priority to a low priority inter-frequency cell to: the signal strength of the associated neighboring cell minus the first threshold; adjusting the RSRP threshold for reselection from a low priority to a high priority inter-frequency cell to: the signal strength of the main service cell minus the first threshold.

[0017] In some embodiments, adjusting the connected-state cell switching parameters of the primary serving cell specifically includes: adjusting an offset parameter Off in the connected-state cell switching parameters of the primary serving cell to a first threshold.

[0018] In some embodiments, data service blocking control is performed on the main service cell, specifically including: controlling the maximum number of access users of the main service cell to be less than a third threshold; and / or controlling the maximum value of the modulation and coding strategy MCS (Modulation and Coding Scheme) to be less than a fourth threshold; and / or controlling the maximum number of resource blocks RB (Resource Block) allocated to the mobile terminal to be less than a fifth threshold; and / or controlling the number of RB perforations to be greater than a sixth threshold.

[0019] In some embodiments, the first threshold is 6dB.

[0020] In a second aspect, the present invention also provides a regional signal shielding device, comprising: an acquisition module, used to acquire the main service cell and associated neighboring cells of the target shielding area, wherein the associated neighboring cells refer to neighboring cells whose reference signal received power RSRP difference with the main service cell is less than a first threshold. An adjustment module, connected to the acquisition module, is used to adjust the parameter configuration of the main service cell and the associated neighboring cells so that the mobile terminal can continuously reside in the main service cell, and the parameter configuration includes priority, switching parameters, and reselection threshold. A control module, connected to the acquisition module, is used to control data service blocking of the main service cell.

[0021] In a third aspect, the present invention further provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to implement a regional signal shielding method as described in the first aspect.

[0022] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for shielding a regional signal as described in the first aspect is implemented.

[0023] The present invention provides a method and device for shielding regional signals, an electronic device, and a computer-readable storage medium. By adjusting the parameter configuration of the main service cell and the associated neighboring cells in the target shielding area, the mobile terminal is forced to reside in the main service cell, and then the data service of the main service cell is blocked and controlled, thereby achieving signal shielding in the target shielding area. Only by adjusting the parameter configuration of the main service cell and the associated neighboring cells in the target shielding area, the impact of large-scale parameter modifications on the communications of surrounding residents can be avoided. Data blocking only acts on the main service cell, and the services of surrounding cells are not affected, thereby achieving precise shielding. Shielding is achieved through parameter configuration (non-physical interference), which can be quickly enabled / restored, thereby achieving controllability. In addition, by screening out associated neighboring cells based on the neighboring cells whose reference signal received power RSRP difference with the main service cell is less than a first threshold, the number of base stations that need to be adjusted can be further reduced, reducing the impact on the communications of surrounding residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a flow chart of a method for shielding regional signals according to Example 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of signal coverage in a target shielding area according to embodiment 1 of the present invention;

[0026] Figure 3 A schematic diagram of the shielding effect based on the base station frequency reduction method;

[0027] Figure 4 This is a schematic diagram showing the effect of the method for shielding regional signals according to Example 1 of the present invention;

[0028] Figure 5 This is a flow chart of a method for shielding regional signals according to embodiment 2 of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] It should be understood that the specific embodiments and drawings described herein are only used to explain the present invention rather than to limit the present invention.

[0031] It is understood that, in the absence of conflict, the various embodiments of the present invention and the various features in the embodiments may be combined with each other.

[0032] It can be understood that, for the convenience of description, the drawings of the present invention only show parts related to the present invention, while parts unrelated to the present invention are not shown in the drawings.

[0033] It can be understood that each unit and module involved in the embodiments of the present invention may correspond to only one physical structure, or may be composed of multiple physical structures, or multiple units and modules may be integrated into one physical structure.

[0034] It will be understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in an order different from that marked in the drawings.

[0035] It is understood that the flowcharts and block diagrams of the present invention illustrate the possible architectures, functions, and operations of the systems, devices, equipment, and methods according to various embodiments of the present invention. Each box in the flowchart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for implementing the specified functions. Moreover, each box or combination of boxes in the block diagram and flowchart may be implemented using a hardware-based system that implements the specified functions, or may be implemented using a combination of hardware and computer instructions.

[0036] It is understandable that the units and modules involved in the embodiments of the present invention may be implemented by software or hardware. For example, the units and modules may be located in a processor.

[0037] Example 1:

[0038] The regional signal shielding method of this embodiment is a regional signal shielding method based on a mobile base station. It is mainly based on the on-site collection of data such as the PCI (Physical Cell Identity) and neighboring cell relations of the main service cell by the mobile terminal, and then adjusting the neighboring cell CIO (Cell Individual Offset) to migrate users or communication equipment to the main service cell first. Then, the rate limit and the maximum number of access users of the main service cell are limited through parameter policy configuration, so as to complete the signal shielding while achieving precise control of the signal shielding area and reducing the impact on the communications of surrounding base stations and normal residents.

[0039] like Figure 1 As shown, this embodiment provides a method for shielding regional signals, which is applied to a server deployed on the network side. The shielding method can be implemented by a device system that can collect cell information on-site, report to the network management system, automatically adjust CIO, and automatically adjust access thresholds. A method for shielding regional signals includes:

[0040] Step 101: Acquire a primary serving cell and associated neighboring cells in a target shielded area, wherein the associated neighboring cells refer to neighboring cells whose reference signal received power (RSRP) difference with the primary serving cell is less than a first threshold.

[0041] Among them, the target shielding area refers to an area where signal shielding is required, such as a certain examination venue. There may be multiple cells in the target shielding area, such as 4G / 5G / 6G in different frequency bands, and the main service cell (sCell) usually refers to the cell with the strongest signal. If the area is large or the coverage is complex, it may involve multiple main service cells (such as different buildings are covered by different cells), and each sCell needs to be shielded separately. The number of associated neighboring cells is one or more, and the value of the first threshold is such as 4dB, or 6dB, or 8dB. If the first threshold is too small, the key associated neighboring cells may be missed, causing the mobile terminal to escape; if the first threshold is too large, too many neighboring cell parameters need to be adjusted, increasing the complexity. In this embodiment, the first threshold is preferably 6dB, which can ensure that the mobile terminal always resides in the main service cell, avoiding shielding failure due to interference from neighboring cell signals, thereby achieving precise shielding; only a small number of neighboring cell parameters are adjusted to avoid large-scale modifications to the base station configuration (such as traditional power reduction requires adjustment of base stations within a radius of 1 km), thereby minimizing the impact on surrounding base stations. Mobile terminals include smartphones, tablets, car terminals, smart wearable devices, etc.

[0042] In some embodiments, the method for obtaining the main service cell and associated neighboring cells of the target shielded area includes: obtaining the base station signal test results of the target shielded area, wherein the test results include physical cell identification, RSRP, signal interference and noise ratio, neighboring cell list, measurement report, and system broadcast message; parsing the test results, and identifying the main service cell and associated neighboring cells of the target shielded area.

[0043] For example, 4G and 5G base station signal testing is performed in the target shielded area. Test results include PCI, RSRP, signal-to-interference-and-noise ratio (SINR), neighbor cell list (CELLLIST), measurement report (MR), system broadcast message (MIB), and SIB (System Information Block) messages. For example, LTE system message broadcasts consist of MIB+SIB+SI (SI message transmission direction: BCCH->DL-SCH->PDSCH). 5G NR system messages are similar to 4G LTE and will not be further described. The MIB is sent on the BCH and carries several important system information parameters: downlink system bandwidth, PHICH configuration information, and system frame number. Therefore, the PCI, RSRP, SINR, and CELLLIST information of the primary serving cell can be extracted from the MIB and SIB messages. The test results are then imported into a pre-set analysis system for analysis, or analyzed internally to output the 4G and 5G primary serving cells in the target shielded area, as well as neighboring cells within 6 dB of the primary serving cell. In this example, this can be achieved through a simple comparison algorithm: assuming that the primary serving cell in the target shielded area is sCell and its surrounding neighboring cells are nCells, then the neighboring cell list CELLLIST can be used to obtain nCells whose RSRP difference with the sCell is within 6dB.

[0044] In some embodiments, the method for obtaining the main service cell and associated neighboring cells of the target shielded area includes: obtaining the base station configuration library and neighboring cell relationship table of the target shielded area in the network management system; identifying the main service cell and associated neighboring cells of the target shielded area from the base station configuration library and neighboring cell relationship table.

[0045] In some embodiments, the method for obtaining the main service cell and associated neighboring cells of the target shielding area includes: identifying the main service cell and associated neighboring cells of the target shielding area based on road test and frequency scanning data (such as full-band signal scanning data collected by a frequency scanner).

[0046] Step 102: Adjust the parameter configuration of the primary serving cell and the associated neighboring cells so that the mobile terminal can continuously reside in the primary serving cell. The parameter configuration includes priority, handover parameters, and reselection threshold.

[0047] In this embodiment, by adjusting the priority, reselection threshold, CIO and other parameter configurations of the primary service cell and the associated neighboring cells, communication devices such as mobile terminals in the target shielding area can stably occupy the primary service cell.

[0048] In some embodiments, the parameter configuration of the main service cell and the associated neighboring cells are adjusted so that the mobile terminal can continuously reside in the main service cell, specifically including: adjusting the idle state reselection priority of the main service cell and the associated neighboring cells; adjusting the connected state cell switching parameters of the main service cell; adjusting the minimum access threshold and reselection threshold of the main service cell to the second threshold, and the second threshold value is -130dBm.

[0049] Adjusting the idle state reselection priority of the primary service cell and associated neighboring cells can prevent mobile terminals in the target shielded area from automatically selecting a more suitable associated neighboring cell to reside in when in idle state, based on parameters such as signal strength and priority. It can also prevent mobile terminals in the associated neighboring cell from migrating to the primary service cell in the target shielded area, causing communication anomalies. Adjusting the connected state cell handover parameters of the primary service cell can force mobile terminals in the target shielded area to prioritize residing in the primary service cell when connected, avoiding handover to associated neighboring cells when connected. The minimum access threshold refers to the minimum RSRP value required for a mobile terminal to access the primary service cell, and the reselection threshold refers to the threshold at which a mobile terminal initiates neighboring cell measurement and reselection. Here, the minimum access threshold and reselection threshold are set to -130dBm, which can cover all possible signal attenuation scenarios. This prevents mobile terminals from residing in other unshielded cells after multiple unsuccessful attempts to access the primary service cell due to the minimum access threshold value issued by the system being too large. Among them, -130dBm is the theoretical limit value, which is suitable for absolute shielding scenarios, so it can further ensure accurate shielding. It can also be fine-tuned according to the actual signal strength (such as -125dBm).

[0050] In some embodiments, the idle state reselection priority of the main service cell and the associated neighboring cell is adjusted, specifically including: adjusting the idle state priority of the main service cell to N, and the idle state priority of the associated neighboring cell to N-1; adjusting the RSRP threshold for reselection from a high priority to a low priority inter-frequency cell to: the signal strength of the associated neighboring cell minus the first threshold; adjusting the RSRP threshold for reselection from a low priority to a high priority inter-frequency cell to: the signal strength of the main service cell minus the first threshold.

[0051] In this embodiment, the RSRP threshold for inter-frequency cell reselection is set to the signal strength minus the first threshold, that is, the first threshold (such as 6dB) is set redundantly to prevent the ping-pong effect. Reselection is allowed only when the signal of the associated neighboring cell is significantly weaker than that of the primary service cell, further ensuring that the mobile terminal stays stably in the primary service cell.

[0052] In some embodiments, adjusting the connected-state cell switching parameters of the primary serving cell specifically includes: adjusting an offset parameter Off in the connected-state cell switching parameters of the primary serving cell to a first threshold.

[0053] Specifically, the handover decision formula is: Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off, where Mn: neighboring cell measurement result, excluding any bias; assume Mn=-68. Ofn: neighboring cell frequency-specific deviation; assume Ofn=0. Ocn: neighboring cell cell-specific deviation; assume Ocn=0. Hys: hysteresis parameter between entering and leaving the event; generally, Hys=1.5. Ms: current cell measurement result, excluding any bias; assume Ms=-72. Ofs: serving frequency (current cell frequency) frequency-specific deviation; assume Ofs=0. Ocs: current cell cell-specific deviation; assume Ocs=0. Off: primary serving cell offset parameter. Generally, Off=1.5. Substituting the above values into the handover decision formula, we have -68+0+0-1.5>-72+0+0+1.5. Obviously, the left side of the formula is equal to -69.5, and the right side is equal to -70.5. The mobile terminal will switch to the associated neighboring cell. The purpose of adjusting the handover parameters of the connected cell of the main service cell is to restrict the mobile terminal from switching to the associated neighboring cell. If the parameters are configured for the associated neighboring cell, it is necessary to adjust the parameters of a large number of neighboring base stations near the main service cell. There is a large amount of adjustment work, and excessive adjustment of the parameters of multiple neighboring cells may lead to a decrease in the handover performance of a large range of mobile network base station cells. Therefore, the main adjustment parameter in this embodiment is Off. Adjust the bias parameter Off of the main service cell to 6, that is, the main service cell will increase the signal strength by 6dB in the handover decision formula.

[0054] Then, if we substitute the formula again, the left side is still equal to -69.5, and the right side is equal to -66, -68+0+0-1.5<-72+0+0+6, which means that the handover exit condition of Mn+Ofn+Ocn+Hys<Ms+Ofs+Ocs+Off will be met. In addition, the mainstream mobile terminal in the associated neighboring cell also initiates handover to the primary service cell. At this time, the mobile terminal in the overlapping coverage area will be prevented from occupying the associated neighboring cell signal. By increasing the bias parameter of the primary service cell to 6dB, the primary service cell "virtually enhances" the signal strength by 6dB in the handover decision, greatly reducing the probability of handover to the neighboring cell and achieving the purpose of precise shielding. Moreover, only the Off parameter of the primary service cell is modified, which does not affect the normal handover of other cells, that is, the surrounding communications are not interfered with. In addition, combined with measurement reports and network management scripts, rapid deployment can be achieved.

[0055] In some embodiments, after adjusting the parameter configuration of the main service cell and the associated neighboring cells so that the mobile terminal continues to reside in the main service cell, and before performing data service blocking control on the main service cell, the shielding method also includes: verifying whether the mobile terminal continues to reside in the main service cell; in response to the mobile terminal not continuing to reside in the main service cell, re-acquiring the main service cell and the associated neighboring cells of the target shielding area, and adjusting the parameter configuration of the main service cell and the associated neighboring cells until the mobile terminal continues to reside in the main service cell.

[0056] This embodiment, by performing verification before controlling data service blocking in the primary serving cell, can avoid parameter configuration failure issues. For example, due to signal fluctuations or missed neighboring cell configurations, the mobile terminal may not reside in the primary serving cell as expected. If data services are directly blocked, the mobile terminal may migrate to an unshielded neighboring cell, causing the blocking to fail. Verification can also avoid unidentified network topology changes, such as the temporary addition of new base stations or antenna adjustments near the target shielding area, which may cause the original neighboring cell list to be inaccurate and the unupdated neighboring cell parameters to be unable to effectively lock the mobile terminal.

[0057] Step 103: Perform data service blocking control on the primary serving cell.

[0058] Among them, the purpose of controlling data service congestion in the primary service cell can be achieved by configuring the maximum number of access users, modifying the maximum modulation and coding strategy MCS, the maximum number of RBs, and RB puncturing parameters.

[0059] In some embodiments, data service blocking control is performed on the main service cell, specifically including: controlling the maximum number of access users of the main service cell to be less than a third threshold; and / or controlling the maximum value of the modulation and coding strategy MCS to be less than a fourth threshold; and / or controlling the maximum number of resource blocks RB allocated to the mobile terminal to be less than a fifth threshold; and / or controlling the number of RB perforations to be greater than a sixth threshold.

[0060] For example, the third threshold value can be 1 or 2, the fourth threshold value can be any of 1, 2, and 3, the fifth threshold value can be any of 2, 3, and 4, and the sixth threshold value can be any of 80%, 85%, and 90%. Specifically, different manufacturer execution scripts can be automatically output based on the primary serving cell. The congestion control in step 103 can limit the network connection rate of mobile terminals occupying the primary serving cell to 0 kbps.

[0061] For example, the factors that affect data upload mainly include MCS, number of RBs, modulation mode, coverage strength, and coverage quality. Therefore, the network speed limit configuration of 4G and 5G by modifying MCS and combining RB limit (RB puncturing algorithm) is as follows:

[0062] Table 1 5G network speed limit configuration

[0063]

[0064] Table 2 4G network speed limit configuration

[0065]

[0066] In some embodiments, after the data service blocking control is performed on the main service cell, the shielding method further includes: testing the shielding effect of the target shielding area, and in response to a good shielding effect, the process ends, and in response to a poor shielding effect, the process returns to step 103 to re-control the data service blocking of the main service cell. It should be noted that the parameter configuration and data service blocking control in this embodiment can be issued through scripts, which has the effect of fast operation and easy deployment. The regional signal shielding method of this embodiment is applied to at least two target shielding areas, and the surrounding residential areas are tested. The test results show that the voice and data services in the residential areas outside the target shielding area are normal. For another example, the shielding method in the prior art and the shielding method of this embodiment are compared through the topology diagram. Figure 2-Figure 4 Specifically, Figure 2 As shown, the signal shielding area is the target shielding area of this embodiment, which is located within the coverage of base stations 1, 2 and 3. A coverage cell of base station 1 is the main service cell, and the communication quality of ordinary residential areas must be guaranteed. Figure 3 As shown in the figure, the existing technology for signal shielding requires reducing the base station frequency or lowering the transmission power to shrink the base station coverage, thereby achieving the effect of signal shielding. Its disadvantage is that it involves many base stations; after the base station coverage is reduced, the network coverage of ordinary residential areas will also be affected. Figure 4 As shown, the shielding method of this embodiment only requires network settings for one coverage cell of base station 1, without affecting the coverage range and capacity of other base stations and cells, and has no impact on the network coverage of surrounding ordinary residential areas.

[0067] The regional signal shielding method of this embodiment adjusts the parameter configuration of the main service cell and the associated neighboring cells in the target shielding area, thereby forcing the mobile terminal to reside in the main service cell, and blocking control is performed on the data service of the main service cell, thereby achieving signal shielding in the target shielding area. Only adjusting the parameter configuration of the main service cell and the associated neighboring cells in the target shielding area can avoid the impact of large-scale parameter modifications on the communications of surrounding residents. Data blocking only acts on the main service cell, and the services of surrounding cells are not affected, thereby achieving precise shielding. Shielding is achieved through parameter configuration (non-physical interference), which can be quickly enabled / restored, thereby achieving controllability. In addition, by screening out associated neighboring cells based on the neighboring cells whose reference signal received power RSRP difference with the main service cell is less than the first threshold, the number of base stations that need to be adjusted can be further reduced, thereby reducing the impact on the communications of surrounding residents. Furthermore, the first threshold is preferably 6dB, which can ensure that the mobile terminal always resides in the main service cell, avoiding shielding failure due to interference from neighboring cell signals, thereby achieving precise shielding; only a small number of neighboring cell parameters are adjusted to avoid large-scale modifications to base station configurations (such as traditional power reduction requires adjustment of base stations within a radius of 1 km), thereby minimizing the impact on surrounding base stations. By increasing the bias parameter of the main service cell to 6dB, the main service cell "virtually enhances" the signal strength by 6dB in the switching decision, greatly reducing the probability of switching to the neighboring cell, thereby achieving the purpose of precise shielding. And only modifying the Off parameter of the main service cell will not affect the normal switching of other cells, that is, the surrounding communications are not interfered with. In addition, combined with measurement reports and network management scripts, rapid deployment can be achieved.

[0068] Example 2:

[0069] like Figure 5 As shown, this embodiment provides a method for shielding regional signals, including:

[0070] Step 11: Define the area that needs signal shielding according to the shielding requirements.

[0071] Step 12: Perform 4G and 5G base station signal testing in the signal-shielded area. Test content includes PCI, RSRP, SINR, CELLLIST, MR, MIB, and SIB messages. LTE system message broadcasts consist of MIB+SIB+SI (SIB message transmission direction: BCCH -> DL-SCH -> PDSCH). (5G NR system messages are similar to 4G LTE and will not be further described.) The MIB is sent on the BCH and carries several important system information parameters: downlink system bandwidth, PHICH configuration information, and system frame number. Therefore, the MIB and SIB messages can be used to extract the serving cell's PCI, RSRP, SINR, and CELLLIST information.

[0072] Step 13: Import the test data into the analysis system for analysis.

[0073] Step 14: Automated target cell identification: The system automatically analyzes and outputs the 4G and 5G serving cells in each target shielding area and the neighboring cells within 6 dB of the serving cells by analyzing the imported test data.

[0074] This step can be achieved through a simple comparison algorithm: Assuming that the primary serving cell in the test area is sCell and its neighboring cells are nCells, the neighbor cell list "CELLLIST" can be used to obtain nCells whose RSRP difference with the sCell cell is within 6dB.

[0075] Step 15 adjusts the target cell's priority, reselection threshold, CIO, and other parameter configurations so that mobile phones and other communication devices in the area occupy the target serving cell (i.e., the primary serving cell in Example 1) in Step 14. The parameter configuration is determined based on field testing to ensure coverage signal strength of the target serving cell and surrounding cells (i.e., the associated neighboring cells in Example 1). Assume that the target serving cell strength is Rs and the surrounding cell strength is Rn.

[0076] First, adjust the idle state reselection priority: configure the priority of the target serving cell to N, the priority of the surrounding cells to N-1, and the RSRP threshold for reselection from a high-priority to a low-priority inter-frequency cell to Rn-6 (6dB redundancy); configure the priority of the surrounding cells to M, the priority of the neighboring cells to M+1 with the target serving cell, and the RSRP threshold for reselection to a high-priority inter-frequency cell to Rs-6 (6dB redundancy).

[0077] Then, the connected cell handover parameter is adjusted: that is, the offset parameter Off of the target serving cell is adjusted to 6 dB. The specific adjustment method is as described in Example 1.

[0078] Finally, adjust the reselection threshold: the minimum access threshold for target serving cell selection is adjusted to -130, and the minimum access threshold for cell reselection is adjusted to -130. This prevents the terminal from residing in other unblocked cells after multiple unsuccessful access attempts due to the excessively large minimum access threshold value issued by the system after accessing the serving cell.

[0079] Step 16: Perform a network test on the signal shielding area again. If the mobile phone or terminal does not stably occupy the "target" service cell, proceed to step 14; if the mobile phone or terminal stably occupies the "target" service cell, proceed to step 17;

[0080] Step 17: Data service blocking control is performed on the "target" serving cell. This can be achieved by configuring parameters such as the maximum number of accessible users, modifying the maximum MCS, the maximum number of RBs, and RB puncturing. The system can automatically output different manufacturer execution scripts based on the target serving cell in step 14. This blocking operation limits the network connection rate of mobile phones or terminals occupying the target serving cell to 0 kbps. The specific blocking control is described in Example 1.

[0081] Step 18: Test the effect of the signal shielding area. If the signal shielding is achieved, the process ends. If the shielding effect is not good, return to step 17.

[0082] The regional signal shielding method of this embodiment creatively implements a new approach to regional signal shielding by blocking data services in specific cellular cells. This improves the accuracy of signal shielding and significantly mitigates the impact of traditional methods such as reducing base station power or deploying a large number of jammers on the network and surrounding users. This addresses the technical gap in preventing interference or impact on surrounding users during regional signal shielding.

[0083] Example 3:

[0084] This embodiment provides a regional signal shielding device, including:

[0085] An acquisition module is used to acquire a primary serving cell and an associated neighboring cell in a target shielded area, wherein the associated neighboring cell refers to a neighboring cell whose reference signal received power RSRP difference with the primary serving cell is less than a first threshold.

[0086] The adjustment module is connected to the acquisition module and is used to adjust the parameter configuration of the primary serving cell and the associated neighboring cells so that the mobile terminal can continuously reside in the primary serving cell. The parameter configuration includes priority, switching parameters, and reselection threshold.

[0087] The control module is connected to the acquisition module and is used to control the data service blocking of the primary serving cell.

[0088] In some embodiments, the acquisition module is used to obtain the base station signal test results of the target shielding area, wherein the test results include physical cell identification, RSRP, signal interference and noise ratio, neighboring cell list, measurement report, system broadcast message, and analyze the test results, and identify the main service cell and associated neighboring cells of the target shielding area.

[0089] In some embodiments, the shielding device further includes a verification module. The verification module is configured to verify whether the mobile terminal continuously resides in the primary serving cell, and in response to the mobile terminal not continuously residing in the primary serving cell, reacquire the primary serving cell and associated neighboring cells in the target shielding area, and adjust parameter configurations of the primary serving cell and associated neighboring cells until the mobile terminal continuously resides in the primary serving cell.

[0090] In some embodiments, the adjustment module is used to adjust the idle state reselection priority of the main service cell and the associated neighboring cells, and adjust the connected state cell switching parameters of the main service cell, and to adjust the minimum access threshold and reselection threshold of the main service cell to the second threshold, and the second threshold value is -130dBm.

[0091] In some embodiments, the adjustment module is specifically used to adjust the idle state priority of the main service cell to N, the idle state priority of the associated neighboring cell to N-1, and adjust the RSRP threshold for reselection from a high priority cell to a low priority inter-frequency cell to: the signal strength of the associated neighboring cell minus the first threshold, and, for adjusting the RSRP threshold for reselection from a low priority cell to a high priority inter-frequency cell to: the signal strength of the main service cell minus the first threshold.

[0092] In some embodiments, the adjustment module is further configured to adjust an offset parameter Off in the connected cell handover parameter of the primary serving cell to a first threshold.

[0093] In some embodiments, the control module is configured to control the maximum number of users accessing the primary serving cell to be less than a third threshold, and / or control the maximum value of the modulation and coding strategy (MCS) to be less than a fourth threshold, and / or control the maximum number of resource blocks (RBs) allocated to the mobile terminal to be less than a fifth threshold, and / or control the number of RB puncturing to be greater than a sixth threshold. For the values of the respective thresholds, reference may be made to Example 1.

[0094] In some embodiments, the first threshold is 6dB.

[0095] Example 4:

[0096] This embodiment provides an electronic device, including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to implement the regional signal shielding method as described in Embodiment 1 or Embodiment 2.

[0097] Example 5:

[0098] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for shielding regional signals as in Embodiment 1 or Embodiment 2 is implemented.

[0099] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for shielding regional signals, characterized in that: include: Obtaining a primary serving cell and associated neighboring cells in a target shielded area, wherein the associated neighboring cell refers to a neighboring cell whose reference signal received power (RSRP) difference with the primary serving cell is less than a first threshold; Adjust the parameter configuration of the primary serving cell and associated neighboring cells to ensure that the mobile terminal remains in the primary serving cell. The parameter configuration includes priority, handover parameters, and reselection thresholds. Perform data service blocking control on the primary service cell.

2. The method according to claim 1, characterized in that The obtaining of the primary serving cell and associated neighboring cells of the target shielded area specifically includes: Obtain base station signal test results in the target shielded area, where the test results include physical cell identification, RSRP, signal-to-interference-and-noise ratio, neighbor cell list, measurement report, and system broadcast message; Analyze the test results and identify the primary serving cell and associated neighboring cells in the target shielded area.

3. The method according to claim 1, characterized in that After adjusting the parameter configurations of the primary serving cell and the associated neighboring cells so that the mobile terminal continuously resides in the primary serving cell, and before performing data service congestion control on the primary serving cell, the method further includes: Verify whether the mobile terminal continues to reside in the primary serving cell; In response to the mobile terminal not continuously residing in the main service cell, the main service cell and associated neighboring cells of the target shielding area are reacquired, and the parameter configurations of the main service cell and the associated neighboring cells are adjusted until the mobile terminal continuously resides in the main service cell.

4. The method according to claim 1, wherein The adjusting the parameter configuration of the primary serving cell and the associated neighboring cells so that the mobile terminal continuously resides in the primary serving cell specifically includes: Adjust the idle state reselection priority of the primary serving cell and associated neighboring cells; Adjust the cell handover parameters of the primary serving cell in connected state; The minimum access threshold and reselection threshold of the primary serving cell are both adjusted to the second threshold, and the second threshold is -130dBm.

5. The method according to claim 4, characterized in that The adjusting of the idle state reselection priorities of the primary serving cell and the associated neighboring cells specifically includes: Adjust the idle state priority of the primary serving cell to N and the idle state priority of the associated neighboring cell to N-1; Adjust the RSRP threshold for reselection from a high-priority to a low-priority inter-frequency cell to: the signal strength of the associated neighboring cell minus the first threshold; The RSRP threshold for reselection from a low-priority cell to a high-priority inter-frequency cell is adjusted to: the signal strength of the primary serving cell minus the first threshold.

6. The method according to claim 4, characterized in that The adjusting of the connected cell handover parameters of the primary serving cell specifically includes: The offset parameter Off in the connected cell switching parameter of the primary serving cell is adjusted to the first threshold.

7. The method according to claim 4, characterized in that The performing data service blocking control on the primary serving cell specifically includes: Controlling the maximum number of users accessing the primary serving cell to be less than a third threshold; and / or, controlling a maximum value of a modulation and coding strategy MCS to be less than a fourth threshold; and / or, controlling the maximum number of resource blocks (RBs) allocated to the mobile terminal to be less than a fifth threshold; And / or, controlling the RB puncturing number to be greater than a sixth threshold.

8. The method according to any one of claims 1 to 7, characterized in that The first threshold value is 6dB.

9. A regional signal shielding device, characterized in that: include: An acquisition module is used to acquire a primary serving cell and an associated neighboring cell in a target shielded area, wherein the associated neighboring cell refers to a neighboring cell whose reference signal received power RSRP difference with the primary serving cell is less than a first threshold value, The adjustment module is connected to the acquisition module and is used to adjust the parameter configuration of the primary serving cell and the associated neighboring cells so that the mobile terminal can continue to reside in the primary serving cell. The parameter configuration includes priority, switching parameters, and reselection threshold. The control module is connected to the acquisition module and is used to control the data service blocking of the primary serving cell.

10. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to implement the method for shielding a regional signal according to any one of claims 1 to 8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for shielding a regional signal according to any one of claims 1 to 8 is implemented.

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