Base station coverage replaceability analysis method, device, equipment and medium

Abstract

The invention provides a base station coverage replaceability analysis method and device, equipment and a medium, and relates to the technical field of mobile communication, and the method comprises the steps: firstly, carrying out the screening of a target base station according to the distance between a to-be-analyzed base station and an adjacent base station, and a wireless scene where the to-be-analyzed base station is located; then, through differentiated setting of frequency priorities, reselection parameters and switching events of a target base station and an adjacent base station, the flow generated by the terminal is transferred from the target base station to the adjacent base station so as to simulate to close the target base station; then, counting traffic generated by the target base station in a preset time period before and after the simulation closing, and calculating a residual traffic proportion; and obtaining a coverage replaceability analysis result of the target base station based on the residual flow proportion and a preset proportion threshold. According to the method, derivation is carried out from the result, and the residual flow is used as a core basis for judging the coverage replaceability of the base station, so that the analysis result can be quantified and is closer to the real situation, and the negative influence on the user is reduced to the minimum.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technology, and in particular to a method, device, equipment and medium for analyzing the substitutability of base station coverage. Background Art

[0002] As mobile communication technology develops from 2G to 5G, the cost and complexity of operator network construction have increased significantly, and operators are facing huge capital expenditures and operating expenses. In order to reduce costs and improve efficiency, operators around the world are actively seeking shared infrastructure. For example, in the current 4G shared network construction carried out by China Telecom and China Unicom, since both parties have deployed the network based on full coverage in the early stage, there are many base stations with similar distances and coverage directions. These base stations have high similarity in coverage and are therefore highly substitutable. Considering cost factors, operators can merge these base stations, and after evaluation, retain one of the base stations and dismantle the other base station.

[0003] At the same time, during the construction of mobile networks, due to the construction and demolition of urban buildings, some small and micro base stations in heterogeneous networks and base stations covering a specific period may have a large overlap in coverage with base stations built later, and are highly substitutable. Therefore, they can also be demolished to achieve the goal of reducing costs and increasing efficiency.

[0004] When judging whether the coverage of a base station can be replaced by other base stations, the commonly used methods are on-site survey, MR (Measurement Report) analysis and simulation analysis. These three methods essentially adopt a forward thinking approach, estimating results based on assumptions, and have different problems such as over-reliance on manual on-site experience, lack of indoor positioning capabilities, and failure to consider user service usage. More importantly, they cannot truly simulate the coverage replacement effect of adjacent sites after the target site is closed. Feedback is often obtained through user complaints after the base station is closed, which is lagging and unquantifiable. Summary of the invention

[0005] The present application provides a base station coverage alternative analysis method, device, equipment and medium to solve the above-mentioned problems existing in the existing methods.

[0006] In a first aspect of an embodiment of the present application, a base station coverage alternative analysis method is proposed, the method comprising:

[0007] According to the distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located, the base stations to be analyzed with alternative coverage are selected as target base stations;

[0008] By differentially setting the frequency priorities, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate shutting down the target base station;

[0009] Counting the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculating the residual traffic ratio, wherein the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown;

[0010] Based on the residual traffic ratio and a preset ratio threshold, a coverage alternative analysis result of the target base station is obtained.

[0011] Optionally, based on the inter-station distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which the base station is located, selecting the base station to be analyzed with coverage alternatives as the target base station includes:

[0012] When the wireless scenario is a dense wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a first station spacing threshold, the base station to be analyzed is used as the target base station;

[0013] When the wireless scenario is a sparse wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a second station spacing threshold, the base station to be analyzed is used as the target base station, and the first station spacing threshold is less than the second station spacing threshold.

[0014] Optionally, by differentially setting frequency priorities, reselection parameters, and switching events of the target base station and the neighboring base station, the traffic generated by the terminal is transferred from the target base station to the neighboring base station to simulate shutting down the target base station, including at least one of the following:

[0015] Differentiated setting of idle state resident parameters and reselection parameters so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupy the adjacent base station;

[0016] The connection state switching events and switching parameters are set differently, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic.

[0017] Optionally, the idle state resident parameters are set differentially so that a terminal in an overlapping coverage area between the target base station and an adjacent base station preferentially occupies the adjacent base station, including:

[0018] Setting the frequency point f2 of the target base station and the frequency point f1 of the adjacent base station, wherein the frequency point f2 of the target base station is not equal to the frequency point f1 of the adjacent base station;

[0019] The frequency priority α2 of the target base station and the frequency priority α1 of the adjacent base station are set, and the frequency priority α1 of the adjacent base station is higher than the frequency priority α2 of the target base station, so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupy the adjacent base station.

[0020] Optionally, the idle state reselection parameters are set differentially so that a terminal in an overlapping coverage area between the target base station and the adjacent base station preferentially occupies the adjacent base station, including:

[0021] Set a reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, wherein the reselection threshold u1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0022] When the terminal resides in the target base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the reselection threshold u1, the terminal is triggered to reselect from the target base station to the neighboring base station.

[0023] Optionally, the idle state reselection parameters are set differentially so that a terminal in an overlapping coverage area between the target base station and the adjacent base station preferentially occupies the adjacent base station, including:

[0024] Set a reselection threshold u2 and a reselection threshold u3 of the signal strength rsrp for reselecting from a neighboring base station to a target base station, where u2 represents the reselection threshold of the neighboring base station and u3 represents the reselection threshold of the target base station;

[0025] When the terminal resides in the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be less than the reselection threshold u2, and the signal strength rsrp of the target base station is greater than the reselection threshold u3, the terminal is triggered to reselect from the neighboring base station to the target base station;

[0026] The reselection threshold u2 is set to a value slightly lower than the edge coverage threshold of the signal strength, and the reselection threshold u3 is set to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0027] Optionally, the method further comprises:

[0028] The reselection threshold u2 is set smaller than the reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station.

[0029] Optionally, differentially setting connection state switching events and switching parameters so that a terminal in an overlapping coverage area between a target base station and an adjacent base station preferentially connects to the adjacent base station and generates traffic includes:

[0030] Set a switching event e1 and a switching threshold η1 between the target base station and the adjacent base station, wherein the switching event e1 indicates that the signal quality of the adjacent cell becomes higher than the corresponding threshold, and the switching threshold η1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0031] When the terminal is connected to the target base station, if the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1, the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is triggered to switch from the target base station to the adjacent base station.

[0032] Optionally, differentially setting connection state switching events and switching parameters so that a terminal in an overlapping coverage area between a target base station and an adjacent base station preferentially connects to the adjacent base station and generates traffic includes:

[0033] Setting a handover event e2 and a handover threshold η2 and a handover threshold η3 between the target base station and the neighboring base station, wherein the handover event e2 indicates that the signal quality of the serving cell becomes lower than the threshold 1 and the signal quality of the neighboring cell becomes higher than the threshold 2, η2 indicates the handover threshold of the neighboring base station, and η3 indicates the handover threshold of the target base station;

[0034] When the terminal is connected to the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the switching threshold η2, and the signal strength rsrp of the target base station is less than the switching threshold η3, the terminal is triggered to switch from the neighboring base station to the target base station;

[0035] The switching threshold η2 is set to a value slightly lower than the edge coverage threshold of the signal strength, and the switching threshold η3 is set to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0036] Optionally, the method further comprises:

[0037] The switching threshold η2 is set smaller than the switching threshold η1 for switching from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is preferentially connected to the adjacent base station.

[0038] In a second aspect of an embodiment of the present application, a base station coverage alternative analysis device is provided, the device comprising:

[0039] A screening module is used to screen the base stations to be analyzed that have coverage alternatives as target base stations according to the distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located;

[0040] A simulation shutdown module, used to transfer the traffic generated by the terminal from the target base station to the adjacent base station by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, so as to simulate the shutdown of the target base station;

[0041] A traffic statistics module, used to count the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculate the residual traffic ratio, wherein the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown;

[0042] The analysis result acquisition module is used to obtain the coverage alternative analysis result of the target base station based on the residual traffic ratio and a preset ratio threshold.

[0043] In a third aspect of an embodiment of the present application, an electronic device is proposed, comprising a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the base station coverage alternative analysis method described in any one of the first aspects above.

[0044] In a fourth aspect of an embodiment of the present application, a computer-readable storage medium is proposed, on which a computer program / instruction is stored. When the computer program / instruction is executed by a processor, the base station coverage alternative analysis method described in any one of the first aspects above is implemented.

[0045] The present application includes the following advantages: The present application proposes a method, device, equipment and medium for analyzing the substitutability of base station coverage. First, according to the inter-station distance between the base station to be analyzed and the adjacent base station and the wireless scene in which it is located, the base station to be analyzed with coverage substitutability is selected as the target base station; then, by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate the shutdown of the target base station; then, the traffic generated by the target base station in the preset time period before the simulated shutdown and the residual traffic generated in the preset time period after the simulated shutdown are counted, and the residual traffic ratio is calculated, and the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown; and based on the residual traffic ratio and the preset ratio threshold, the coverage substitutability analysis result of the target base station is obtained. The method derives the required technical implementation methods and steps from the results, and proposes to use the residual traffic as the core basis for judging the substitutability of base station coverage, so that the analysis results can be quantified and closer to the actual situation, and there is no need to shut down the target base station, only through the policy and parameter configuration, the real simulation of the station shutdown effect can be achieved, so that the negative impact on users is minimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 This is a schematic diagram of the steps of a base station coverage alternative analysis method proposed in the present application;

[0048] Figure 2 It is a schematic diagram of a target base station and adjacent base stations of a base station coverage alternative analysis method proposed in an embodiment of the present application;

[0049] Figure 3 It is a schematic diagram of a residual traffic area generated after simulating the shutdown of a target base station in a base station coverage alternative analysis method proposed in an embodiment of the present application;

[0050] Figure 4 It is a flowchart of a base station coverage alternative analysis method proposed in an embodiment of the present application;

[0051] Figure 5 It is a schematic diagram of differentially setting idle state resident parameters in a base station coverage alternative analysis method proposed in an embodiment of the present application;

[0052] Figure 6 It is an architecture diagram of a base station coverage alternative analysis device proposed in an embodiment of the present application;

[0053] Figure 7 It is a schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0056] The base station coverage analysis method currently proposed adopts a forward thinking approach and estimates the analysis results based on assumptions. However, the on-site survey method has the problem of over-reliance on manual experience, the MR analysis method has the problem of lack of indoor positioning capabilities and failure to consider user service usage, and the simulation analysis method has the problem of high requirements for model and map accuracy and high costs. More importantly, the above methods cannot truly simulate the coverage replacement effect of adjacent base stations after the target site is closed. Generally, feedback is obtained through user complaints after the target base station is closed, which is lagging and unquantifiable.

[0057] Based on this, the present application proposes a base station coverage substitutability analysis method. By means of reverse deduction, the method directly starts from the result of the residual traffic, and takes the residual traffic as the core basis for judging the substitutability of base station coverage. By constructing differentiated usage priorities of target base stations and adjacent base stations, the terminals of the target base station are "driven" to the adjacent base stations as much as possible to achieve the effect of simulating station shutdown. Finally, the traffic remaining in the target base station can be regarded as the high and low indicator of the base station's substitutability.

[0058] It should be noted that in the embodiments of the present application, the base station described refers to a device used for sending and receiving wireless signals and responsible for providing wireless communication services in a specific geographical area. The coverage described refers to the effective range of the wireless signal, and the coverage area refers to the geographical area where the base station or wireless access point can effectively transmit and receive signals. The described replaceability means that a base station can be replaced by other adjacent base stations without significantly reducing the original coverage effect. The described residual traffic refers to the traffic that remains in the base station after a base station is simulated and shut down, but cannot be absorbed by the adjacent base station within its original coverage area because the adjacent base station cannot cover it.

[0059] In a first aspect of the embodiment of the present application, a base station coverage alternative analysis method is proposed, see Figure 1 , Figure 1 This is a schematic diagram of the steps of a base station coverage alternative analysis method proposed in the present application, the method comprising the following steps:

[0060] Step 101: Based on the inter-station distance between the base station to be analyzed and adjacent base stations and the wireless scenario in which they are located, a base station to be analyzed with coverage alternatives is selected as a target base station.

[0061] When determining whether the coverage of a base station can be replaced by another base station or another group of base stations, the distance between the base station and its adjacent base stations is first considered. Generally speaking, the smaller the distance between base stations, the stronger the complementarity of base station coverage, and the higher the possibility of the base station being replaced, and vice versa.

[0062] At the same time, considering that in mobile communications, the topography of different scenes where base stations are located has different effects on the coverage capabilities of base stations. In dense scenes, the wireless signal attenuation is large, the base station coverage is small, and if adjacent base stations want to replace the target base station, their station spacing should be small; in sparse scenes, the signal transmission distance is long, the base station coverage is large, and if adjacent base stations want to replace the target base station, their station spacing can be slightly larger.

[0063] Based on the above considerations, when conducting coverage substitutability analysis on base stations, the inter-station distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located are first obtained, and this is used as screening conditions to screen out the base stations to be analyzed that have coverage substitutability as target base stations. This method can screen out base stations to be analyzed that have strong coverage substitutability potential as target base stations.

[0064] For example, Figure 2 As shown, Figure 2 This is a schematic diagram of a target base station and adjacent base stations of a base station coverage substitutability analysis method proposed in an embodiment of the present application. Assuming that the first base station, the second base station, and the third base station are all in the same wireless scenario, the first base station is used as the base station to be analyzed, and the adjacent base stations of the first base station are the second base station and the third base station. The inter-station distances between the first base station and the second base station and the third base station are obtained, and the base station with strong coverage substitutability potential is screened as the first base station, and the first base station is used as the target base station.

[0065] Step 102: By differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate shutting down the target base station.

[0066] In order to achieve the effect of simulating the shutdown of the target base station, the frequency priority, reselection parameters and switching events of the target base station and the adjacent base stations are differentially constructed to "drive" the terminals of the target base station to the adjacent base stations as much as possible, so that the traffic generated by the terminals is transferred from the target base station to the adjacent base stations, so as to achieve the purpose of simulating the shutdown of the target base station. This method does not need to shut down the target base station, but only through event and parameter settings, it can truly simulate the shutdown effect of the target base station, so as to minimize the negative impact on users.

[0067] Step 103: Count the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculate the residual traffic ratio, where the residual traffic is used to characterize the traffic that remains in the target base station after the simulated shutdown.

[0068] After simulating the shutdown of the target base station, most of the terminals connected to the target base station will be transferred from the target base station to the adjacent base station, and the traffic generated by these terminals will also be transferred to the adjacent base station. This is equivalent to shutting down the target base station. The terminals under the target base station will lose the signal of the target base station and then choose the adjacent base station to generate data connection, which actually has the effect of simulating the shutdown of the station.

[0069] However, there are still a small number of terminals under the target base station. These terminals are located in areas that are not covered by the signals of adjacent base stations. Their traffic is still generated at the target base station and is called residual traffic. Figure 3 As shown, Figure 3 : is a schematic diagram of a residual traffic area generated after simulating the shutdown of a target base station in a base station coverage alternative analysis method proposed in an embodiment of the present application, in which the first base station ( Figure 2 As shown) after the target base station is simulated to be shut down ( Figure 3 The first base station is not shown in the figure), the terminals connected within the coverage area of ​​the first base station are still connected to the first base station and generate traffic, the generated traffic is the residual traffic, and the area where the residual traffic is located is the traffic area between the adjacent base stations (the second base station and the third base station), which can be referred to Figure 3 The residual flow area is shown in FIG.

[0070] Based on the above description, the traffic generated by the target base station in the preset time period before the simulated shutdown, as well as the residual traffic generated in the preset time period after the simulated shutdown, are counted, and the residual traffic ratio is calculated, which is used as the basis for judging whether the target base station can be replaced. The preset time period is the same time period before and after the simulated shutdown, such as one week, two weeks, etc.

[0071] It should be noted that the lower the proportion of residual traffic, the higher the proportion of traffic generated by terminals in the coverage area of ​​the target base station that can be absorbed by adjacent base stations, and the target base station has strong substitutability; the higher the proportion of residual traffic, the lower the proportion of terminal traffic in the coverage area of ​​the target base station that can be absorbed by adjacent base stations, and the target base station has weak substitutability.

[0072] Step 104: Based on the remaining traffic ratio and a preset ratio threshold, a coverage alternative analysis result of the target base station is obtained.

[0073] The present application takes into account that the less the residual traffic, the more areas the adjacent base stations can cover the target base station, and the higher the possibility that the target base station will be replaced; conversely, the lower the coverage substitutability of the target base station. After calculating the residual traffic ratio, in order to quantify the substitutability analysis results of the target base station, a preset ratio threshold of the residual traffic is set, and the residual traffic ratio is compared with the preset ratio threshold to directly analyze the substitutability of the target base station. Since the less the residual traffic, the higher the possibility that the target base station will be replaced, in an embodiment of the present application, the preset ratio threshold is set to a lower value, such as 10%, 15%, etc.

[0074] Based on the above description, the coverage alternativeness analysis result of the target base station includes at least the following situations: when the proportion of residual traffic is less than the preset proportion threshold, it indicates that the coverage alternativeness analysis result of the target base station is highly alternative; when the proportion of residual traffic is greater than the preset proportion threshold, it indicates that the coverage alternativeness analysis result of the target base station is weakly alternative.

[0075] For example, see Figure 4 , Figure 4 This is a flow chart of a base station coverage alternative analysis method proposed in an embodiment of the present application. First, the target base station is screened out according to the scene and the distance between the adjacent base stations. Then, the total flow T0 of the target base station for a consecutive week is counted. Then, the target base station and the adjacent base stations are configured differently to simulate the shutdown of the target base station. The total flow T1 of the target base station after the simulated shutdown is counted, and the residual flow ratio of the target base station is calculated. Then, compare the residual flow ratio Is it lower than a preset ratio threshold? For example, the preset ratio threshold is 10%. If the ratio is less than 10% of the preset threshold, it is judged that the base station coverage is highly replaceable. When the ratio is greater than a preset threshold of 10%, it is determined that the base station coverage has weak substitutability.

[0076] The embodiment of the present application proposes a method for analyzing the substitutability of base station coverage. First, according to the inter-station distance between the base station to be analyzed and the adjacent base station and the wireless scene in which it is located, the base station to be analyzed with coverage substitutability is selected as the target base station; then, by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate the shutdown of the target base station; then, the traffic generated by the target base station in the preset time period before the simulated shutdown and the residual traffic generated in the preset time period after the simulated shutdown are counted, and the residual traffic ratio is calculated, and the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown; and based on the residual traffic ratio and the preset ratio threshold, the coverage substitutability analysis result of the target base station is obtained. The method derives the required technical implementation methods and steps from the results, and proposes to use the residual traffic as the core basis for judging the substitutability of base station coverage, so that the analysis results can be quantified and closer to the actual situation, and there is no need to shut down the target base station, only through the policy and parameter configuration, the real simulation of the station shutdown effect can be achieved, so that the negative impact on users is minimized.

[0077] In an optional implementation of the present application, the above step 101, based on the inter-station distance between the base station to be analyzed and the adjacent base station and the wireless scenario in which it is located, selects the base station to be analyzed with coverage alternatives as the target base station, specifically including the following steps:

[0078] Step 1011: when the wireless scenario is a dense wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a first station spacing threshold, taking the base station to be analyzed as the target base station;

[0079] Step 1012: When the wireless scenario is a sparse wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a second station spacing threshold, the base station to be analyzed is used as the target base station, and the first station spacing threshold is less than the second station spacing threshold.

[0080] In this embodiment, based on two factors, the distance between the base station and the adjacent base station and the wireless scenario in which the base station is located, the possible coverage substitutability of the base station is evaluated. When the distance between the base station and the nearest adjacent base station is less than the distance threshold d, it is considered that it may have a high coverage substitutability (that is, it is easy to be replaced by the adjacent base station), and such base stations are screened out as target base stations.

[0081] The wireless scenarios in which the base station is located include at least dense wireless scenarios and sparse wireless scenarios. For example, the density of urban buildings is obviously higher than that of rural buildings. If the base station is located in an urban area, the base station is in a dense wireless scenario. If the base station is located in a rural area, the base station is in a sparse wireless scenario. The first station spacing threshold of the dense wireless scenario is set to be smaller than the second station spacing threshold of the sparse wireless scenario. For example, the value range of the first station spacing threshold is 100 to 250 meters, and the value range of the second station spacing threshold is 250 to 500 meters.

[0082] In this embodiment, the wireless scene where the base station is located is further subdivided into dense urban areas, general urban areas, suburbs and rural areas. Correspondingly, if the wireless scene where the base station is located is a dense urban area, the corresponding station spacing threshold d has a value range of 100 to 150 meters, if the wireless scene where the base station is located is a general urban area, the corresponding station spacing threshold d has a value range of 150 to 250 meters, if the wireless scene where the base station is located is a suburb, the corresponding station spacing threshold d has a value range of 250 to 350 meters, if the wireless scene where the base station is located is a rural area, the corresponding station spacing threshold d has a value range of 350 to 500 meters. The above wireless scenes and corresponding station spacing thresholds are classified with common scenes as an example. If the wireless scene where the base station is located is an uncommon area, the corresponding station spacing threshold can be set as needed. In this embodiment, in order to select base stations with strong coverage substitutability in space, base stations with a distance from the nearest base station less than the minimum station spacing are selected as target base stations according to different scenes. Such base stations will have stronger coverage substitutability.

[0083] Specifically, the division reference of the above wireless scenarios and the station spacing threshold d corresponding to the wireless scenarios can be referred to Table 1, which is a division result of a wireless scenario and a station spacing threshold proposed in an embodiment of the present application.

[0084] Table 1 Division results of wireless scenarios and station spacing thresholds

[0085] Wireless Scenario Station distance threshold d Dense urban area 100~150 meters General urban area 150~250 meters suburbs 250~350 meters Rural 350~500 meters

[0086] In an optional implementation of the present application, the above step 102, by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, transfers the traffic generated by the terminal from the target base station to the adjacent base station to simulate shutting down the target base station, specifically includes at least one of the following steps:

[0087] Step 1021: Differentiately set idle state residency parameters and reselection parameters so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station;

[0088] Step 1022: Differentiately set connection state switching events and switching parameters so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic.

[0089] According to the 3GPP (a global telecommunications standardization organization whose main task is to develop technical specifications for the evolution of global mobile communication systems) protocol, when other resident parameter settings are the same, the terminal will give priority to high-priority frequencies in the idle state. Therefore, the frequency priority of the adjacent base station can be set higher than the frequency priority of the target base station, so that the terminal gives priority to the signal of the adjacent base station for resident. When the terminal needs to connect to the network, it must initiate a connection under the base station where it resides and enter the connected state, and generate mobile data traffic at the connected base station. Through any of the above settings, the terminal can be connected to the adjacent base station in both the idle state and the connected state to simulate the target base station being shut down.

[0090] In an optional implementation manner of the present application, the above step 1021, differentially setting idle state residence parameters so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station, specifically includes the following steps:

[0091] Step 10211: setting the frequency point f2 of the target base station and the frequency point f1 of the adjacent base station, wherein the frequency point f2 of the target base station is not equal to the frequency point f1 of the adjacent base station;

[0092] Step 10212: Set the frequency priority α2 of the target base station and the frequency priority α1 of the adjacent base station. The frequency priority α1 of the adjacent base station is higher than the frequency priority α2 of the target base station, so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station have priority to occupy the adjacent base station.

[0093] Since the terminal will give priority to the frequency with a high priority in the idle state when other resident parameters are set the same, in the present application, the target base station and the adjacent base station can have the same resident parameter settings except for the frequency and frequency priority. First, the frequency of the target base station is set to a frequency different from that of the adjacent base station, such as setting the frequency f2 of the target base station and the frequency f1 of the adjacent base station, and the frequency f2 of the target base station is not equal to the frequency f1 of the adjacent base station. Then, the frequency priority of the target base station is set lower than the frequency priority of the adjacent base station, such as setting the frequency priority α2 of the target base station and the frequency priority α1 of the adjacent base station, and the frequency priority α1 of the adjacent base station is higher than the frequency priority α2 of the target base station, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station have priority to occupy the adjacent base station. The results of the above-mentioned differentiated setting of the resident parameters can be found in Table 2, which is a differentiated setting result of the resident parameters of a base station proposed in an embodiment of the present application.

[0094] Table 2 Results of differentiated setting of base station dwell parameters

[0095]

[0096] For example, see Figure 5 , Figure 5 It is a schematic diagram of differentially setting idle state resident parameters in a base station coverage alternative analysis method proposed in an embodiment of the present application. If the first base station is a target base station, the frequency and frequency priority of the target base station are set to f2 and α2 respectively, and if the second base station is an adjacent base station of the first base station, the frequency and frequency priority of the adjacent base station are set to f1 and α1 respectively.

[0097] In an optional implementation of the present application, in the above step 1021, the idle state reselection parameters are set differentially so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station, which specifically includes the following steps:

[0098] Step 10213: setting a reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, wherein the reselection threshold u1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0099] Step 10214: When the terminal resides in the target base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the reselection threshold u1, the terminal is triggered to reselect from the target base station to the neighboring base station.

[0100] By setting the idle state residency parameters, the target base station and the adjacent base station have different frequencies and priorities, and the frequency priority of the adjacent base station is higher than that of the target base station. Furthermore, differentiated thresholds are set during reselection to achieve the purpose of allowing the terminal to occupy the adjacent base station as much as possible: the reselection threshold u1 of the signal strength rsrp of the target base station to reselect to the adjacent base station is set; when the terminal resides at the target base station, if the signal strength rsrp of the adjacent base station is measured to be greater than the reselection threshold u1, the terminal is triggered to reselect from the target base station to the adjacent base station. In order to allow the terminal to occupy the adjacent base station signal as much as possible, the reselection threshold u1 is set lower, such as setting u1 to a value slightly higher than the edge coverage threshold of the signal strength -103dbm.

[0101] In another optional embodiment of the present application, in the above step 1021, the idle state reselection parameters are set differentially so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station, which specifically includes the following steps:

[0102] Step 10215: setting a reselection threshold u2 and a reselection threshold u3 of a signal strength rsrp for reselecting from a neighboring base station to a target base station, where u2 represents the reselection threshold of the neighboring base station, and u3 represents the reselection threshold of the target base station;

[0103] Step 10216: When the terminal resides in the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be less than the reselection threshold u2, and the signal strength rsrp of the target base station is greater than the reselection threshold u3, the terminal is triggered to reselect from the neighboring base station to the target base station;

[0104] Step 10217: Set the reselection threshold u2 to a value slightly lower than the edge coverage threshold of the signal strength, and set the reselection threshold u3 to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0105] In this embodiment, if the terminal resides in the adjacent base station at this time, the reselection threshold u2 and reselection threshold u3 of the signal strength rsrp for reselecting from the adjacent base station to the target base station are first set, where u2 represents the reselection threshold of the adjacent base station, and u3 represents the reselection threshold of the target base station. If the measured signal strength rsrp of the adjacent base station is less than the reselection threshold u2, and the signal strength rsrp of the target base station is greater than the reselection threshold u3, the terminal is triggered to reselect from the adjacent base station to the target base station. However, in order to make the terminal stay in the adjacent base station as much as possible, the reselection threshold u2 can be set to a value slightly lower than the edge coverage threshold of the signal strength, and the reselection threshold u3 can be set to a value slightly higher than the edge coverage threshold of the signal strength, such as u2 = -105dbm, u3 = -102dbm.

[0106] In an optional implementation manner of the present application, after the idle state reselection parameter is set, the method further includes the following steps:

[0107] Step 10218: Set the reselection threshold u2 to be smaller than the reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupy the adjacent base station.

[0108] The present application considers that if the reselection threshold u2 is greater than the reselection threshold u1, then when the terminal resides in the target base station, the measured signal strength rsrp of the adjacent base station is greater than the reselection threshold u1, and the terminal will reselect to the adjacent base station, but because the reselection threshold u2 is greater than the reselection threshold u1, the terminal will reselect to the target base station, that is, the terminal "ping-pongs" back and forth between the target base station and the adjacent base station. In order to avoid the above situation, the reselection threshold u2 is set to be less than the reselection threshold u1 of the signal strength rsrp from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station will preferentially occupy the adjacent base station, and will not "ping-pong" back and forth between the target base station and the adjacent base station. The results of the above-mentioned differentially set reselection parameters in the idle state can be found in Table 3, which is a result of the differentiated setting of the reselection parameters of a base station proposed in an embodiment of the present application.

[0109] Table 3 Results of differentiating the reselection parameters of base stations

[0110]

[0111] In this embodiment, the complete process of setting the idle state parameters from step 10211 to step 10218 is the preferred idle state parameter setting method, which sets the frequency of the target base station to be different from that of the adjacent base station, and sets the frequency priority of the adjacent base station to be higher than that of the target base station, so that when the terminal is in the idle state, it preferentially resides in the adjacent base station with a higher priority; at the same time, the reselection thresholds of the adjacent base station and the target base station are set differently, so that it is easy for the terminal to reselect from the target base station to the adjacent base station, but difficult to reselect from the adjacent base station to the target base station. In this way, the terminal can select the adjacent base station as much as possible, and the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station can preferentially reside in the idle state and reselect to the adjacent base station, so as to achieve the purpose of "driving" the terminal originally residing in the target base station to the adjacent base station as much as possible.

[0112] In an optional implementation of the present application, in the above step 1022, the connection state switching event and the switching parameter are set differentially, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is preferentially connected to the adjacent base station and generates traffic, specifically including the following steps:

[0113] Step 10221: Setting a handover event e1 and a handover threshold η1 between the target base station and the neighboring base station, wherein the handover event e1 indicates that the signal quality of the neighboring cell becomes higher than the corresponding threshold, and the handover threshold η1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0114] Step 10222: When the terminal is connected to the target base station, if the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1, the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is triggered to switch from the target base station to the adjacent base station.

[0115] In this embodiment, the switching time is set according to the switching event type defined by 3GPP. Specifically, the switching event type defined by 3GPP is shown in Table 4.

[0116] Table 4 Handover events defined by 3GPP

[0117]

[0118] Specifically, first, the switching event e1 and the switching threshold η1 for the target base station to switch to the adjacent base station are set. The switching event e1 is an A4 event, indicating that the signal quality of the adjacent area becomes higher than the corresponding threshold. When the terminal is connected to the target base station, if the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1, the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is triggered to switch from the target base station to the adjacent base station. In order to allow the terminal to switch to the adjacent base station as soon as possible, the switching threshold η1 can be set lower, such as setting the switching threshold η1 to a value slightly higher than the edge coverage threshold of the signal strength -103dbm.

[0119] In another optional implementation of the present application, in the above step 1022, the connection state switching event and the switching parameter are set differentially, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is preferentially connected to the adjacent base station and generates traffic, specifically including the following steps:

[0120] Step 10223: setting a handover event e2 and a handover threshold η2 and a handover threshold η3 between the target base station and the neighboring base station, wherein the handover event e2 indicates that the signal quality of the serving cell becomes lower than the threshold 1 and the signal quality of the neighboring cell becomes higher than the threshold 2, η2 indicates the handover threshold of the neighboring base station, and η3 indicates the handover threshold of the target base station;

[0121] Step 10224: When the terminal is connected to the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the switching threshold η2, and the signal strength rsrp of the target base station is less than the switching threshold η3, the terminal is triggered to switch from the neighboring base station to the target base station;

[0122] Step 10225: Set the switching threshold η2 to a value slightly lower than the edge coverage threshold of the signal strength, and set the switching threshold η3 to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0123] In this embodiment, if the terminal is connected to an adjacent base station, the switching event e2 and the switching threshold η2 and switching threshold η3 of the target base station and the adjacent base station are first set. The switching event e2 is an A5 event, indicating that the signal quality of the serving cell becomes lower than threshold 1 and the signal quality of the adjacent cell becomes higher than threshold 2. η2 represents the switching threshold of the adjacent base station, and η3 represents the switching threshold of the target base station. When the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η2, and the signal strength rsrp of the target base station is less than the switching threshold η3, the terminal is triggered to switch from the adjacent base station to the target base station. In order to allow the terminal to stay in the adjacent base station as much as possible, the switching threshold η2 can be set to a value slightly lower than the edge coverage threshold of the signal strength, and the switching threshold η3 can be set to a value slightly higher than the edge coverage threshold of the signal strength, such as u2 = -105dbm, u3 = -102dbm.

[0124] In an optional implementation manner of the present application, after setting the connection state switching time and the switching parameters, the method further includes the following steps:

[0125] Step 10226: Set the switching threshold η2 to be smaller than the switching threshold η1 for switching from the target base station to the adjacent base station, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station.

[0126] The present application considers that if the switching threshold η2 is greater than the switching threshold η1, then when the terminal is connected to the target base station, the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1, and the terminal will switch to the adjacent base station, but because the switching threshold η2 is greater than the switching threshold η1, the terminal will switch to the target base station again, that is, the terminal "ping-pongs" back and forth between the target base station and the adjacent base station. In order to avoid the above situation, the switching threshold η2 is set to be less than the switching threshold η1 for switching from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station will preferentially connect to the adjacent base station, and will not "ping-pong" back and forth between the target base station and the adjacent base station. The results of the above-mentioned differentially set reselection parameters in the idle state can be found in Table 5, which is a result of the differential setting of switching events and switching parameters of a base station proposed in an embodiment of the present application.

[0127] Table 5 Results of differentiating the handover events and handover parameters of base stations

[0128]

[0129] In this embodiment, the complete process of setting the connection state parameters from step 10221 to step 10226 is the preferred connection state parameter setting method, which sets the switching events and switching parameters of the adjacent base station and the target base station differently, so that when the terminal is in the connected state, it is easy to switch from the target base station to the adjacent base station, but it is difficult to switch from the adjacent base station to the target base station, so that the terminal can connect to the adjacent base station as much as possible and generate mobile data traffic. For terminals in the overlapping coverage area of ​​the target base station and the adjacent base station, the idle state can be switched preferentially and the adjacent base station signal can be used, so as to achieve the purpose of "driving" the terminal originally connected to the target base station to the adjacent base station as much as possible. In the setting of the switching event and the switching parameter, the switching parameter is set accordingly according to different switching events.

[0130] This application proposes a result-oriented reverse evaluation method. The current method for judging the substitutability of base stations usually follows a linear process, starting from assumptions, making predictions based on experience or models, then shutting down the base stations, and finally making judgments based on user feedback (such as complaints). However, this method may lead to wrong decisions due to deviations in assumptions or inaccurate models. The reverse evaluation sequence subverts this tradition, starting from the desired results, and reversely deriving the steps and conditions required to achieve the goal. This application also proposes to use residual traffic as the core basis for judging the substitutability of base station coverage. Traffic represents the frequency of user service use. The quality of signal coverage is essentially reflected through changes in traffic. The proportion of residual traffic of the base station represents the level of substitutability of the base station. By calculating the residual traffic, the substitution relationship between base stations can be quantitatively evaluated. Furthermore, the present application also proposes a simulated station shutdown setting method, which has strong predictability and little negative impact on users. Through the differentiated setting of frequency priority, reselection and switching strategies, the difficulty of reselection and switching between the target base station and the adjacent base station is different. The target base station is "strict in and loose out", while the adjacent base station is "loose in and strict out". The traffic is migrated out as much as possible and backflow is avoided, simulating the traffic sharing effect after the target base station is shut down, with strong predictability. The simulated station shutdown will not have a real impact on the existing network, allowing network operators to evaluate the effects of different strategies in a safe environment without worrying about causing user complaints.

[0131] In a second aspect of an embodiment of the present application, a base station coverage alternative analysis device is provided, referring to Figure 6 , Figure 6 600 is an architecture diagram of a base station coverage alternative analysis device proposed in an embodiment of the present application, wherein the device 600 includes:

[0132] A screening module 601 is used to screen the base station to be analyzed with alternative coverage as a target base station according to the inter-station distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which the base station is located;

[0133] The simulated shutdown module 602 is used to transfer the traffic generated by the terminal from the target base station to the adjacent base station by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, so as to simulate the shutdown of the target base station;

[0134] The traffic statistics module 603 is used to count the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculate the residual traffic ratio, where the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown;

[0135] The analysis result acquisition module 604 is used to obtain the coverage alternative analysis result of the target base station based on the residual traffic ratio and a preset ratio threshold.

[0136] Optionally, the screening module includes:

[0137] A first screening submodule, configured to use the base station to be analyzed as the target base station when the wireless scenario is a dense wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a first station spacing threshold;

[0138] The second screening submodule is used to use the base station to be analyzed as the target base station when the wireless scenario is a sparse wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a second station spacing threshold, and the first station spacing threshold is less than the second station spacing threshold.

[0139] Optionally, the simulation shutdown module includes at least one of the following:

[0140] A first differentiated setting submodule, used for differentially setting idle state resident parameters and reselection parameters, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station;

[0141] The second differentiated setting submodule is used to differentiate the connection state switching events and switching parameters so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic.

[0142] Optionally, the first differentiation setting submodule includes:

[0143] A first setting unit, configured to set a frequency point f2 of the target base station and a frequency point f1 of the adjacent base station, wherein the frequency point f2 of the target base station is not equal to the frequency point f1 of the adjacent base station;

[0144] The second setting unit is used to set the frequency priority α2 of the target base station and the frequency priority α1 of the adjacent base station. The frequency priority α1 of the adjacent base station is higher than the frequency priority α2 of the target base station, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station have priority to occupy the adjacent base station.

[0145] Optionally, the first differentiation setting submodule further includes:

[0146] A third setting unit is used to set a reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, wherein the reselection threshold u1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0147] The first trigger unit is used for triggering the terminal to reselect from the target base station to the neighboring base station when the terminal is stationed at the target base station and the signal strength rsrp of the neighboring base station is measured to be greater than the reselection threshold u1.

[0148] Optionally, the first differentiation setting submodule further includes:

[0149] a fourth setting unit, configured to set a reselection threshold u2 and a reselection threshold u3 of a signal strength rsrp for reselecting from a neighboring base station to a target base station, wherein u2 represents the reselection threshold of the neighboring base station, and u3 represents the reselection threshold of the target base station;

[0150] A second triggering unit is configured to trigger the terminal to reselect from the neighboring base station to the target base station when the terminal resides in the neighboring base station and measures that the signal strength rsrp of the neighboring base station is less than the reselection threshold u2 and the signal strength rsrp of the target base station is greater than the reselection threshold u3;

[0151] The fifth setting unit is used to set the reselection threshold u2 to a value slightly lower than the edge coverage threshold of the signal strength, and to set the reselection threshold u3 to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0152] Optionally, the device further comprises:

[0153] The reselection threshold setting module is used to set the reselection threshold u2 to be smaller than the reselection threshold u1 of the signal strength rsrp of reselecting from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station.

[0154] Optionally, the second differentiation setting submodule includes:

[0155] a sixth setting unit, configured to set a switching event e1 and a switching threshold η1 between the target base station and the adjacent base station, wherein the switching event e1 indicates that the signal quality of the adjacent cell becomes higher than the corresponding threshold, and the switching threshold η1 is set to a value slightly higher than the edge coverage threshold of the signal strength;

[0156] The third trigger unit is used to trigger the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station to switch from the target base station to the adjacent base station when the terminal is connected to the target base station and the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1.

[0157] Optionally, the second differentiation setting submodule further includes:

[0158] a seventh setting unit, configured to set a switching event e2 and a switching threshold η2 and a switching threshold η3 between the target base station and the neighboring base station, wherein the switching event e2 indicates that the serving cell signal quality becomes lower than a threshold 1 and the neighboring cell signal quality becomes higher than a threshold 2, η2 indicates the switching threshold of the neighboring base station, and η3 indicates the switching threshold of the target base station;

[0159] a fourth triggering unit, configured to trigger the terminal to switch from the neighboring base station to the target base station when the terminal is connected to the neighboring base station and measures that the signal strength rsrp of the neighboring base station is greater than the switching threshold η2 and the signal strength rsrp of the target base station is less than the switching threshold η3;

[0160] The eighth setting unit is used to set the switching threshold η2 to a value slightly lower than the edge coverage threshold of the signal strength, and to set the switching threshold η3 to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

[0161] Optionally, the device further comprises:

[0162] The switching threshold setting module is used to set the switching threshold η2 to be smaller than the switching threshold η1 for switching from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is preferentially connected to the adjacent base station.

[0163] Based on the same application concept, the embodiment of the present application discloses an electronic device in a third aspect. Figure 7 A schematic diagram of an electronic device disclosed in an embodiment of the present application is shown. Figure 7As shown, the electronic device 100 includes: a memory 110 and a processor 120, the memory of the electronic device is not less than 12G, the main frequency of the processor is not less than 2.4GHz, the memory 110 and the processor 120 are connected via a bus communication, and a computer program is stored in the memory 110. The computer program can be run on the processor 120 to implement a base station coverage alternative analysis method disclosed in an embodiment of the present application.

[0164] Based on the same application concept, an embodiment of the present application discloses a computer-readable storage medium having a computer program / instruction stored thereon. When the computer program / instruction is executed by a processor, a base station coverage alternative analysis method disclosed in an embodiment of the present application is implemented.

[0165] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0166] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, apparatuses, electronic devices, and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0167] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0168] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable terminal device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0169] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0170] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0171] The above is a detailed introduction to the base station coverage alternative analysis method, device, equipment and medium provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A base station coverage substitutability analysis method, characterized in that: The method comprises: According to the distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located, the base stations to be analyzed with alternative coverage are selected as target base stations; By differentially setting the frequency priorities, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate shutting down the target base station; Counting the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculating the residual traffic ratio, wherein the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown; Based on the residual traffic ratio and a preset ratio threshold, a coverage alternative analysis result of the target base station is obtained.

2. The base station coverage alternative analysis method according to claim 1, characterized in that: Based on the distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located, base stations to be analyzed with alternative coverage are selected as target base stations, including: When the wireless scenario is a dense wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a first station spacing threshold, the base station to be analyzed is used as the target base station; When the wireless scenario is a sparse wireless scenario and the station spacing between the base station to be analyzed and the adjacent base station is less than a second station spacing threshold, the base station to be analyzed is used as the target base station, and the first station spacing threshold is less than the second station spacing threshold.

3. The base station coverage alternative analysis method according to claim 1, characterized in that: By differentially setting the frequency priorities, reselection parameters and switching events of the target base station and the adjacent base station, the traffic generated by the terminal is transferred from the target base station to the adjacent base station to simulate shutting down the target base station, including at least one of the following: Differentiated setting of idle state resident parameters and reselection parameters so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupy the adjacent base station; The connection state switching events and switching parameters are set differently, so that the terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic.

4. The base station coverage alternative analysis method according to claim 3, characterized in that: Differentiated setting of idle state resident parameters so that a terminal in an overlapping coverage area of ​​a target base station and an adjacent base station preferentially occupies the adjacent base station includes: Setting the frequency point f2 of the target base station and the frequency point f1 of the adjacent base station, wherein the frequency point f2 of the target base station is not equal to the frequency point f1 of the adjacent base station; The frequency priority α2 of the target base station and the frequency priority α1 of the adjacent base station are set, and the frequency priority α1 of the adjacent base station is higher than the frequency priority α2 of the target base station, so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupy the adjacent base station.

5. The base station coverage alternative analysis method according to claim 3, characterized in that: Differentiated setting of idle state reselection parameters so that a terminal in an overlapping coverage area between a target base station and an adjacent base station preferentially occupies the adjacent base station includes: Set a reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, wherein the reselection threshold u1 is set to a value slightly higher than the edge coverage threshold of the signal strength; When the terminal resides in the target base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the reselection threshold u1, the terminal is triggered to reselect from the target base station to the neighboring base station.

6. The base station coverage alternative analysis method according to claim 3, characterized in that: Differentiated setting of idle state reselection parameters so that a terminal in an overlapping coverage area between a target base station and an adjacent base station preferentially occupies the adjacent base station includes: Set a reselection threshold u2 and a reselection threshold u3 of the signal strength rsrp for reselecting from a neighboring base station to a target base station, where u2 represents the reselection threshold of the neighboring base station and u3 represents the reselection threshold of the target base station; When the terminal resides in the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be less than the reselection threshold u2, and the signal strength rsrp of the target base station is greater than the reselection threshold u3, the terminal is triggered to reselect from the neighboring base station to the target base station; The reselection threshold u2 is set to a value slightly lower than the edge coverage threshold of the signal strength, and the reselection threshold u3 is set to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

7. The base station coverage alternative analysis method according to claim 6, characterized in that: The method further comprises: The reselection threshold u2 is set smaller than the reselection threshold u1 of the signal strength rsrp for reselecting from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station preferentially occupies the adjacent base station.

8. The base station coverage alternative analysis method according to claim 3, characterized in that: Differentiated setting of connection state handover events and handover parameters so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic, including: Set a switching event e1 and a switching threshold η1 between the target base station and the adjacent base station, wherein the switching event e1 indicates that the signal quality of the adjacent cell becomes higher than the corresponding threshold, and the switching threshold η1 is set to a value slightly higher than the edge coverage threshold of the signal strength; When the terminal is connected to the target base station, if the signal strength rsrp of the adjacent base station is measured to be greater than the switching threshold η1, the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is triggered to switch from the target base station to the adjacent base station.

9. The base station coverage alternative analysis method according to claim 3, characterized in that: Differentiated setting of connection state handover events and handover parameters so that terminals in the overlapping coverage area of ​​the target base station and the adjacent base station are preferentially connected to the adjacent base station and generate traffic, including: Setting a handover event e2 and a handover threshold η2 and a handover threshold η3 between the target base station and the neighboring base station, wherein the handover event e2 indicates that the signal quality of the serving cell becomes lower than the threshold 1 and the signal quality of the neighboring cell becomes higher than the threshold 2, η2 indicates the handover threshold of the neighboring base station, and η3 indicates the handover threshold of the target base station; When the terminal is connected to the neighboring base station, if the signal strength rsrp of the neighboring base station is measured to be greater than the switching threshold η2, and the signal strength rsrp of the target base station is less than the switching threshold η3, the terminal is triggered to switch from the neighboring base station to the target base station; The switching threshold η2 is set to a value slightly lower than the edge coverage threshold of the signal strength, and the switching threshold η3 is set to a value slightly higher than the edge coverage threshold of the signal strength, so that the terminal stays in the adjacent base station.

10. The base station coverage alternative analysis method according to claim 9, characterized in that: The method further comprises: The switching threshold η2 is set smaller than the switching threshold η1 for switching from the target base station to the adjacent base station, so that the terminal in the overlapping coverage area of ​​the target base station and the adjacent base station is preferentially connected to the adjacent base station.

11. A base station coverage alternative analysis device, characterized in that: The device comprises: A screening module is used to screen the base stations to be analyzed that have coverage alternatives as target base stations according to the distance between the base station to be analyzed and the adjacent base stations and the wireless scenario in which they are located; A simulation shutdown module, used to transfer the traffic generated by the terminal from the target base station to the adjacent base station by differentially setting the frequency priority, reselection parameters and switching events of the target base station and the adjacent base station, so as to simulate the shutdown of the target base station; A traffic statistics module, used to count the traffic generated by the target base station in a preset time period before the simulated shutdown, and the residual traffic generated in a preset time period after the simulated shutdown, and calculate the residual traffic ratio, wherein the residual traffic is used to characterize the traffic still remaining in the target base station after the simulated shutdown; The analysis result acquisition module is used to obtain the coverage alternative analysis result of the target base station based on the residual traffic ratio and a preset ratio threshold.

12. An electronic device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the base station coverage alternative analysis method according to any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that: A computer program / instruction is stored thereon, and when the computer program / instruction is executed by a processor, the base station coverage alternative analysis method described in any one of claims 1 to 10 is implemented.

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