Method, device, equipment and storage medium for adjusting cell switching boundary

Abstract

The present invention discloses a method, device, equipment and computer-readable storage medium for adjusting a cell switching boundary. The method for adjusting a cell switching boundary comprises: obtaining, according to a measurement report sent by a user terminal, level change values ​​of reference signal receiving power corresponding to a main service cell and a neighboring cell respectively in a preset time period before and after the user terminal performs a cell switching between the main service cell and the neighboring cell; fitting a switching fitting curve of the level value and timing of the reference signal receiving power when the user terminal performs a cell switching according to the change of the level change value along the time sequence; determining a main service cell switching threshold and a neighboring cell switching threshold according to the main service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve, so as to perform a cell switching according to the main service cell switching threshold and the neighboring cell switching threshold. The present invention provides a method for adjusting a cell switching boundary with low cost, high efficiency and good flexibility.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device, equipment and computer-readable storage medium for adjusting a cell switching boundary. Background Art

[0002] With the rapid growth of LTE services, some neighboring cells within the same coverage area have more online terminal users and a higher corresponding data download volume; however, there are other cells in the adjacent area that absorb less business volume and have a lower amount of data downloaded by terminal users. As a result, there is a situation where the business volume of co-sites or neighboring cells is unbalanced and needs to be optimized and adjusted.

[0003] In the case of uneven user distribution, existing technologies usually prioritize optimization through interference verification and user distribution analysis. When switching cells, the switching start threshold and decision threshold determine the time point for starting measurement and switching, as well as when and under what level conditions switching can occur between adjacent cells, and indirectly determine the distribution of traffic and users between cells and the length of time users stay in a cell. Existing switching parameter optimization methods are generally implemented through testing, which is costly, inefficient, and difficult to adapt to the needs of personalized and refined parameter optimization and adjustment of massive base stations.

[0004] Therefore, there is an urgent need for a new method, device, equipment and computer-readable storage medium for adjusting a cell switching boundary to solve the above technical problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a method, device, equipment and computer-readable storage medium for adjusting a cell switching boundary, aiming to solve the technical problem that the existing optimization means for cell switching related parameters are high in cost and very low in efficiency.

[0006] To achieve the above object, the present invention provides a method for adjusting a cell switching boundary, comprising the following steps:

[0007] According to the measurement report sent by the user terminal, obtaining level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell;

[0008] According to the change of the level change value along the time sequence, fitting is performed to obtain a switching fitting curve of the level value and the time sequence of the reference signal received power when the user terminal performs cell switching;

[0009] According to the primary service cell traffic volume and the neighboring cell traffic volume changing along the time sequence in the switching fitting curve, the primary service cell switching threshold and the neighboring cell switching threshold are determined, so as to perform cell switching according to the primary service cell switching threshold and the neighboring cell switching threshold.

[0010] Optionally, the step of determining a primary serving cell switching threshold and a neighboring cell switching threshold according to the primary serving cell traffic volume and the neighboring cell traffic volume that vary along the time sequence in the switching fitting curve includes:

[0011] Determine the equal capacity moment that satisfies the preset traffic volume ratio according to the traffic volume of the main service cell and the traffic volume of the neighboring cell that change along the time sequence in the switching fitting curve;

[0012] According to a time point corresponding to a preset inter-frequency measurement duration before the equal capacity moment, determine that a level value corresponding to the time point in the switching fitting curve is the neighboring cell switching threshold;

[0013] According to the time point corresponding to the preset heterofrequency decision duration before the equal capacity moment, the level value corresponding to the time point in the switching fitting curve is determined as the main service cell switching threshold, wherein the sum of the preset heterofrequency measurement duration and the preset heterofrequency decision duration is less than the preset switching time threshold.

[0014] Optionally, the step of obtaining, according to the measurement report sent by the user terminal, level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell includes:

[0015] Calculate, according to the measurement report sent by the user terminal, equal level peak points of the reference signal received power corresponding to the primary serving cell and the neighboring cell;

[0016] The level change value of the user terminal in a preset time period before and after the equal level peak point is obtained according to the measurement report.

[0017] Optionally, the step of calculating, according to the measurement report sent by the user terminal, equal-level peak points of the reference signal received power corresponding to the primary serving cell and the neighboring cell includes:

[0018] Obtaining, according to the measurement report sent by the user terminal, reference signal received power level values ​​corresponding to the primary serving cell and the neighboring cell respectively;

[0019] Counting the corresponding measurement report sample quantity when the reference signal received power level values ​​of the primary serving cell and the neighboring cell are equal;

[0020] The level value corresponding to the measurement report sample volume with the largest value is set as the equal-level peak point.

[0021] Optionally, the step of obtaining, according to the measurement report, a level change value of the user terminal in a preset time period before and after the equal-level peak point includes:

[0022] Determine, according to the preset user identification parameter and the measurement report, a time point at which the level value of the reference signal received power of each of the user terminals within a preset time length is equal to the equal-level peak point;

[0023] Obtain a level change value of the reference signal received power within the preset time period before and after the time point.

[0024] Optionally, the step of fitting a switching fitting curve of a level value and a timing of a reference signal received power when the user terminal performs a cell switching according to a change of the level change value along the timing includes:

[0025] According to the multiple level change values ​​corresponding to the user terminal and changing along the time sequence, fitting a distribution fitting curve of the level value and time sequence of the reference signal received power when the user terminal performs cell switching;

[0026] According to the number of sampling points corresponding to each level change value in the distribution fitting curve, the traffic volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the traffic volume of the main service cell and the traffic volume of the neighboring cell.

[0027] Optionally, the step of obtaining, according to the level change value, a switching fitting curve of the level value and timing distribution of the reference signal received power when the user terminal performs cell switching includes:

[0028] Fitting a distribution fitting curve of the level value and the time sequence of the reference signal received power corresponding to the user terminal when the user terminal performs cell switching according to the multiple level change values ​​corresponding to the user terminal that change along the time sequence;

[0029] According to the distribution fitting curve fitting corresponding to the multiple user terminals, and according to the number of sampling points corresponding to each level change value in the distribution fitting curve, the business volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the business volume of the main service cell and the business volume of the neighboring cell.

[0030] In addition, to achieve the above-mentioned purpose, the present invention further provides a cell switching boundary adjustment device, the cell switching boundary adjustment device comprising:

[0031] A data acquisition module, configured to obtain, according to a measurement report sent by a user terminal, level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell;

[0032] A data fitting module, used for fitting a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing;

[0033] The threshold generation module is used to determine the main service cell switching threshold and the neighboring cell switching threshold according to the main service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve, so as to perform cell switching according to the main service cell switching threshold and the neighboring cell switching threshold.

[0034] In addition, to achieve the above-mentioned purpose, the present invention also provides a cell switching boundary adjustment device, the cell switching boundary adjustment device comprising: a memory, a processor, and an adjustment program stored in the memory and executable on the processor, and the adjustment program, when executed by the processor, implements the steps of the cell switching boundary adjustment method as described above.

[0035] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which an adjustment program is stored, and when the adjustment program is executed by a processor, the steps of the cell switching boundary adjustment method as described above are implemented.

[0036] In addition, to achieve the above object, the present invention further provides that an adjustment program is stored on a computer-readable storage medium, and when the adjustment program is executed by a processor, the steps of the cell switching boundary adjustment method as described above are implemented.

[0037] The method for adjusting the cell switching boundary provided by the present invention obtains the level change values ​​of the reference signal receiving power corresponding to the main service cell and the neighboring cell in the preset time period before and after the user terminal performs the cell switching between the main service cell and the neighboring cell, so that only the level values ​​in the preset time period before and after the cell switching can be analyzed, the calculation amount can be reduced, and the accuracy of the main service cell switching threshold and the neighboring cell switching threshold calculated subsequently can be improved; the level value of the reference signal receiving power and the switching fitting curve of the time sequence can be fitted according to the change of the level change value along the time sequence, so that the change law of the level value of the reference signal receiving power and the main service cell business volume and the neighboring cell business volume can be obtained from the switching fitting curve when the user terminal performs the cell switching, so that the better main service cell switching threshold and the neighboring cell switching threshold can be obtained according to the change of the business volume with the time sequence and the change of the level value with the time sequence, so as to improve and optimize the network switching performance; because the calculation of the main service cell switching threshold and the neighboring cell switching threshold can be realized only according to the measurement report, the manual measurement and threshold setting of the staff can be avoided, thereby reducing the adjustment cost and improving the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the terminal\device structure of the hardware operating environment involved in the embodiment of the present invention;

[0039] Figure 2 It is a flowchart of a first embodiment of a method for adjusting a cell switching boundary of the present invention;

[0040] Figure 3 It is a detailed flow chart of step S30 in the method for adjusting the cell switching boundary of the present invention;

[0041] Figure 4 A handover fitting curve diagram of an embodiment of a method for adjusting a cell handover boundary of the present invention;

[0042] Figure 5 It is a detailed flow chart of step S10 in the method for adjusting the cell switching boundary of the present invention;

[0043] Figure 6 The distribution diagram of equal level points in one embodiment of the method for adjusting the cell switching boundary of the present invention is shown in FIG.

[0044] Figure 7 FIG. 1 is a schematic diagram of device modules of a device for adjusting a cell switching boundary according to the present invention.

[0045] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0047] like Figure 1 As shown, Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention.

[0048] The terminal in the embodiment of the present invention is a device for adjusting a cell switching boundary.

[0049] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0050] Those skilled in the art will understand that Figure 1 The terminal structure shown in the figure does not constitute a limitation on the terminal, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0051] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an adjustment program.

[0052] exist Figure 1 In the terminal shown, the network interface 1004 is mainly used to connect to the backend server and perform data communication with the backend server; the user interface 1003 is mainly used to connect to the client (user end) and perform data communication with the client; and the processor 1001 can be used to call the adjustment program stored in the memory 1005 and perform the following operations:

[0053] According to the measurement report sent by the user terminal, obtaining level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell;

[0054] According to the change of the level change value along the time sequence, fitting is performed to obtain a switching fitting curve of the level value and the time sequence of the reference signal received power when the user terminal performs cell switching;

[0055] According to the primary service cell traffic volume and the neighboring cell traffic volume changing along the time sequence in the switching fitting curve, the primary service cell switching threshold and the neighboring cell switching threshold are determined, so as to perform cell switching according to the primary service cell switching threshold and the neighboring cell switching threshold.

[0056] Reference Figure 2 The present invention provides a method for adjusting a cell switching boundary. In a first embodiment of the method for adjusting a cell switching boundary, the method for adjusting a cell switching boundary comprises the following steps:

[0057] Step S10, obtaining, according to the measurement report sent by the user terminal, level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell;

[0058] When the user terminal is connected to the base station, it will work completely according to the network signaling. The user terminal carried by the user often moves between different cells. In order to achieve its mobility management and maintain business continuity, the network can enable the user terminal to switch between different cells in a timely manner through the switching process. The existing communication network can adopt multi-band and multi-layer networking. In cities with higher traffic volume, more carriers are used to meet the capacity needs of users. Due to the difference in path loss of different frequency bands, the coverage area is also different. In the multi-layer network networking area, the traffic volume of different frequency band carriers in the same coverage area may be unbalanced due to the difference in coverage of different frequency bands. The following uses the LTE network of multi-layer networking as an example to illustrate the scheme of the present invention. Those skilled in the art can understand that the adjustment scheme provided by the present invention can also be applied to other adapted mobile networks.

[0059] For the convenience of description, the main service cell and the neighboring cell are collectively referred to as the main neighboring cell below. The measurement report MR (Measurement Report) refers to the main neighboring cell network indicator data measured and reported by the UE (User Equipment) according to the measurement configuration issued by the network. These reported data can be used for network evaluation and optimization. In the LTE (LongTerm Evolution) network, the measurement report is completed by the UE and the eNodeB (Evolved Node B). The UE executes and reports the downlink level strength, quality and other data of the cell, and the eNodeB executes and reports the measurement of the uplink UE's receiving level strength and quality. The processing of the measurement report is usually completed in the eNodeB. MR data is divided into measurement report sample data (including period-based MRO data and event-based MRE data) and measurement report statistical data (MRS data). Among them, MRO data is the measurement report period sample data, which represents the collected original measurement report information. In the present application scheme, MRO data is used as an example for explanation.

[0060] The cell switching process is divided into three main stages, namely mobility measurement, switching decision and switching execution. Mobility measurement is a measurement used for the purpose of switching. In order to assist the network in making switching decisions, the source base station can configure measurements for the terminal so that it reports the channel quality of the serving cell and the neighboring cell before switching, so that the network can judge the switching more reasonably. When the base station determines that all the current switching conditions are met, it will start to select the target base station for the terminal. When the target base station is selected, the base station will inform the terminal when to switch and other information required to access the target base station, and then the source base station will release resources, links, etc. The base station configures the terminal for measurement through the RRC connection reconfiguration message, and the terminal performs measurements according to the measurement configuration information, including channel quality evaluation and reporting of the current cell and neighboring cells. If the measurement is for the same-frequency neighboring cell, it is a same-frequency measurement, and for the different-frequency neighboring cell, it is a different-frequency measurement. Taking the LTE network as an example, there are 5 types of same / different-frequency measurement events, as follows:

[0061] 1) A1 event: The communication quality of the primary serving cell is higher than an absolute threshold, and the ongoing inter-frequency measurement is further closed and the GAP is deactivated;

[0062] 2) A2 event: The communication quality of the primary serving cell is lower than an absolute threshold, and further inter-frequency measurement and GAP activation are used;

[0063] 3) A3 event: The quality of the neighboring cell of the same priority level is higher than that of the primary serving cell by a threshold, and further intra-frequency / inter-frequency coverage-based handover is performed;

[0064] 4) A4 event: the quality of the neighboring cell is higher than an absolute threshold. Further switching based on load;

[0065] 5) A5 event: the quality of the primary serving cell is lower than an absolute threshold 1 and the quality of the neighboring cell is higher than an absolute threshold 2, further intra-frequency / inter-frequency coverage-based handover is performed.

[0066] The inter-frequency handover is triggered by events A1 and A2 to trigger the inter-frequency measurement, and A3-A5 to trigger the handover decision. The threshold corresponding to the A1 event is the stop measurement threshold, that is, if the RSRP value (Reference Signal Receiving Power) of the serving cell measured by the UE is greater than the threshold, the UE stops the inter-frequency measurement; the threshold corresponding to the A2 event is the start measurement threshold, that is, if the RSRP value of the serving cell measured by the UE is less than the threshold, the UE starts the inter-frequency measurement.

[0067] In the present invention, by reading the parameters in the measurement report, the level change value in a preset time period before and after the cell switching of one or more user terminals is obtained, so as to find out the rules according to the level change value and predict the cell switching threshold.

[0068] Step S20, fitting a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing;

[0069] See also Figure 4 , when the user terminal moves from the main service cell S with a frequency of F to the neighboring cell N with a frequency of F, the RSRP level value corresponding to the main service cell S gradually decreases, and the RSRP level value corresponding to the neighboring cell N gradually increases. Therefore, according to the change of the level change value along the time series, two intersecting curves can be obtained, namely Figure 4 In the main service cell-switching fitting curve and the neighboring cell-switching fitting curve, the intersection of the two curves is the moment when the RSRP level values ​​are equal. Since the switching fitting curve is a fitting curve, that is, the measurement report provided by a sampling point corresponds to a point around the fitting curve or on the curve, those skilled in the art can understand that the corresponding level values ​​of the measurement reports provided by many sampling points are fitted into the switching fitting curve, then the number of sampling points can be reflected in the fitting curve. Since the sampling points of MRO data are proportional to the cell traffic volume, the distribution of sampling points in the figure can effectively characterize the distribution of the main and neighboring cell traffic volume. Figure 4 As shown in the figure, the scattered points around the fitting curve are the MRO data sample points, and their characteristics correspond to the traffic volume of the cell. Therefore, the distribution of the scattered points in the above figure can also represent the distribution of traffic volume between cells.

[0070] Step S30, determining a primary service cell switching threshold and a neighboring cell switching threshold according to the primary service cell traffic volume and the neighboring cell traffic volume that vary along the time sequence in the switching fitting curve, so as to perform cell switching according to the primary service cell switching threshold and the neighboring cell switching threshold.

[0071] The switching fitting curve can reflect the timing, level value, and cell traffic law of the user terminal performing cell switching. The technical personnel in this field can obtain the main service cell switching threshold and the neighboring cell switching threshold by setting reasonable traffic conditions, timing conditions, etc. When the level value corresponding to the neighboring cell received by the user terminal is higher than the neighboring cell switching threshold, and the level value corresponding to the main service cell is lower than the main service cell switching threshold, the cell switching is performed.

[0072] The method for adjusting the cell switching boundary provided by the present invention obtains the level change values ​​of the reference signal receiving power corresponding to the main service cell and the neighboring cell in the preset time period before and after the user terminal performs the cell switching between the main service cell and the neighboring cell, so that only the level values ​​in the preset time period before and after the cell switching can be analyzed, the calculation amount can be reduced, and the accuracy of the main service cell switching threshold and the neighboring cell switching threshold calculated subsequently can be improved; the level value of the reference signal receiving power and the switching fitting curve of the time sequence can be fitted according to the change of the level change value along the time sequence, so that the change law of the level value of the reference signal receiving power and the main service cell business volume and the neighboring cell business volume can be obtained from the switching fitting curve when the user terminal performs the cell switching, so that the better main service cell switching threshold and the neighboring cell switching threshold can be obtained according to the change of the business volume with the time sequence and the change of the level value with the time sequence, so as to improve and optimize the network switching performance; because the calculation of the main service cell switching threshold and the neighboring cell switching threshold can be realized only according to the measurement report, the manual measurement and threshold setting of the staff can be avoided, thereby reducing the adjustment cost and improving the adjustment efficiency.

[0073] See also Figure 3 and Figure 4 In the second embodiment of the method for adjusting the cell handover boundary, step S30 includes:

[0074] Step S31, determining an equal capacity moment that satisfies a preset traffic volume ratio according to the traffic volume of the primary serving cell and the traffic volume of the neighboring cell that vary along the time sequence in the handover fitting curve;

[0075] Since the sample point is proportional to the traffic volume, in order to ensure that the actual traffic volume achieves capacity migration from the unbalanced state at time Ts to the balanced state at time Td, the original network switching threshold needs to be adjusted to the neighboring cell switching threshold Pn and the main service cell switching threshold Ps. When the neighboring cell level is higher than Pn and the main cell level is lower than the main service cell switching threshold Ps, the network triggers the switching process, prompting part of the traffic volume of the main cell to migrate, and achieve traffic balance between the main and neighboring cells.

[0076] In this embodiment, the restriction is performed by setting the traffic volume ratio of the primary neighboring cell. For example, the equal capacity time Td when the capacity of the primary neighboring cell is in equal proportion is obtained by the following formula.

[0077]

[0078] Among them, Q S represents the traffic volume of the primary service cell S, Q N Traffic volume of neighboring cells. x It indicates the time point when the traffic ratio of the primary and adjacent cells is X. d It is the equal capacity moment when the capacities of the primary and neighboring cells are distributed in equal proportion (ie, X=1), and T is a time series variable.

[0079] Step S32, according to a time point corresponding to a preset inter-frequency measurement duration before the equal capacity moment, determining a level value corresponding to the time point in the handover fitting curve as the neighboring cell handover threshold;

[0080] Step S33, according to the time point corresponding to the preset heterofrequency decision duration before the equal capacity moment, determine that the level value corresponding to the time point in the switching fitting curve is the main service cell switching threshold, wherein the sum of the preset heterofrequency measurement duration and the preset heterofrequency decision duration is less than the preset switching time threshold.

[0081] Figure 4The gray shaded area in the middle represents the migration traffic from the main service cell to the neighboring cell. To ensure user experience and network performance, it is necessary to control the time of the entire switching process of the cellular network within a certain preset switching time threshold Tk to be reasonable, so as to ensure that as the signal of the main service cell fades, the decline in communication quality before switching to the new neighboring cell in time is within the acceptable range for users. Assume that the entire switching delay is divided into the delay T1 from the neighboring cell decision threshold to the equal capacity distribution moment Td (preset hetero-frequency measurement duration) and the delay T2 from the equal capacity distribution moment Td to the main service cell decision threshold (preset hetero-frequency decision duration). In order to control the switching delay within a reasonable preset switching time threshold Tk, that is, T1+T2<switching time threshold Tk. Based on the above-mentioned restrictions, the maximum limit values ​​of the expected durations T1 and T2 can be obtained. By further referring to the switching fitting curve, the reasonable main service cell switching threshold and neighboring cell switching threshold of the switching parameters of the main service cell S corresponding to the frequency point F can be obtained, that is, the level value corresponding to the intersection point Ps of the curve corresponding to the time Td-expected duration T1, and the level value corresponding to the intersection point Pn of the curve corresponding to the time Td+expected duration T2.

[0082] See also Figure 5 and Figure 6 In the third embodiment of the method for adjusting the cell handover boundary, step S10 includes:

[0083] Step S11, calculating equal level peak points of reference signal received power corresponding to the primary serving cell and the neighboring cell according to the measurement report sent by the user terminal;

[0084] The equal-level peak point is the maximum value of the reference signal received power level values ​​that are equal between the primary serving cell and the neighboring cell, and the maximum value defines the boundary between the two primary neighboring cells.

[0085] Specifically, step S11 includes:

[0086] Step a, obtaining reference signal received power level values ​​corresponding to the primary serving cell and the neighboring cell respectively according to the measurement report sent by the user terminal;

[0087] Step b, counting the corresponding measurement report sample quantity when the reference signal received power level values ​​of the primary serving cell and the neighboring cell are equal;

[0088] Step c: setting the level value corresponding to the measurement report sample volume with the largest value as the equal-level peak point.

[0089] In the embodiment regarding the main service cell S and its neighboring cell N, data is extracted based on "MR.LteScRSRP" and "MR.LteNcRSRP" as key fields. If the corresponding values ​​of the above two key fields are equal, it means that the RSRP level values ​​of the main service cell S and its neighboring cell N are equal. Filter and retain the records with equal RSRP level values ​​of the main neighboring cells in the MRO sample data and the corresponding number of sample records. The distribution diagram of the equal level value points of the main service cell S and its related frequency point F is drawn as shown in the figure below: Figure 6 The statistical distribution of these equal-level value points is expected to conform to the conventional normal distribution, and the peak point of the normal distribution is the equal-level peak point at the boundary between the main and adjacent cells, that is, -93dB, C52000.

[0090] After step c, step S12 is executed to obtain, according to the measurement report, a level change value of the user terminal in a preset time period before and after the equal level peak point.

[0091] Specifically, step S12 includes:

[0092] Step d, determining, based on the preset user identification parameter and the measurement report, a time point at which the level value of the reference signal received power of each user terminal within a preset duration is equal to the equal level peak point;

[0093] In this embodiment, the preset user identification parameters are "MRMmeCode", "MmeGroupId" and "MmeUeS1APId". The values ​​corresponding to these three sets of data can uniquely represent a corresponding user in the cell, so their combination is selected to distinguish different users, so that the level value of each user can be obtained from the MRO sample data.

[0094] Step f, obtaining the level change value of the reference signal receiving power within the preset time period before and after the time point.

[0095] In this embodiment, the time interval during which the above field combination of the same user remains unchanged is Tr minutes, and the MRO record containing the primary service cell S and its corresponding frequency point F is selected. First, the user is divided according to the above field combination of Mme, and the time point corresponding to the equal level peak point of the user is obtained by screening. Of course, a user can correspond to multiple equal level peak points within Tr minutes. After further obtaining the signal distribution in the time period of t seconds before and after the equal level peak point, the MR sampling points in the time interval from T1-t to T1+t are included in the statistics to be drawn into the fitting curve diagram.

[0096] In one embodiment, step S20 includes:

[0097] According to the multiple level change values ​​corresponding to the user terminal and changing along the time sequence, fitting a distribution fitting curve of the level value and time sequence of the reference signal received power when the user terminal performs cell switching;

[0098] According to the number of sampling points corresponding to each level change value in the distribution fitting curve, the traffic volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the traffic volume of the main service cell and the traffic volume of the neighboring cell.

[0099] For example, a distribution fitting curve is generated by using the level values ​​corresponding to the MR sampling points of a single user in the time interval from T1-t to T1+t, the level values ​​corresponding to the MR sampling points in the time interval from T2-t to T2+t, ... the level values ​​corresponding to the MR sampling points in the time interval from Tn-t to Tn+t, and then substituting the level value data corresponding to other user terminals into the distribution fitting curve, so that the service volume can be determined based on the sampling point data.

[0100] In another embodiment, step S20 includes:

[0101] Fitting a distribution fitting curve of the level value and the time sequence of the reference signal received power corresponding to the user terminal when the user terminal performs cell switching according to the multiple level change values ​​corresponding to the user terminal that change along the time sequence;

[0102] According to the distribution fitting curve fitting corresponding to the multiple user terminals, and according to the number of sampling points corresponding to each level change value in the distribution fitting curve, the business volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the business volume of the main service cell and the business volume of the neighboring cell.

[0103] The difference between the above embodiment is that, in this embodiment, distribution fitting curves corresponding to each user terminal are first generated, and then each distribution fitting curve is fitted into a switching fitting curve. Those skilled in the art can select a suitable fitting method according to the actual data volume, complexity, discreteness, etc.

[0104] In addition, refer to Figure 7 The embodiment of the present invention further provides a device for adjusting a cell switching boundary, comprising:

[0105] The data acquisition module 10 is used to obtain, according to the measurement report sent by the user terminal, level change values ​​of the reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell;

[0106] A data fitting module 20 is used to fit a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing;

[0107] The threshold generation module 30 is used to determine the primary service cell switching threshold and the neighboring cell switching threshold according to the primary service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve, so as to perform cell switching according to the primary service cell switching threshold and the neighboring cell switching threshold.

[0108] Optionally, the threshold generating module 30 is used to:

[0109] Determine the equal capacity moment that satisfies the preset traffic volume ratio according to the traffic volume of the main service cell and the traffic volume of the neighboring cell that change along the time sequence in the switching fitting curve;

[0110] According to a time point corresponding to a preset inter-frequency measurement duration before the equal capacity moment, determine that a level value corresponding to the time point in the switching fitting curve is the neighboring cell switching threshold;

[0111] According to the time point corresponding to the preset heterofrequency decision duration before the equal capacity moment, the level value corresponding to the time point in the switching fitting curve is determined as the main service cell switching threshold, wherein the sum of the preset heterofrequency measurement duration and the preset heterofrequency decision duration is less than the preset switching time threshold.

[0112] Optionally, the data acquisition module 10 is used to:

[0113] Calculate, according to the measurement report sent by the user terminal, equal level peak points of the reference signal received power corresponding to the primary serving cell and the neighboring cell;

[0114] The level change value of the user terminal in a preset time period before and after the equal level peak point is obtained according to the measurement report.

[0115] Optionally, the data acquisition module 10 is used to:

[0116] Obtaining, according to the measurement report sent by the user terminal, reference signal received power level values ​​corresponding to the primary serving cell and the neighboring cell respectively;

[0117] Counting the corresponding measurement report sample quantity when the reference signal received power level values ​​of the primary serving cell and the neighboring cell are equal;

[0118] The level value corresponding to the measurement report sample volume with the largest value is set as the equal-level peak point.

[0119] Optionally, the data collection module 10 is used to: determine, according to a preset user identification parameter and the measurement report, a time point at which a level value of a reference signal received power of each user terminal within a preset time length is equal to the equal-level peak point;

[0120] Obtain a level change value of the reference signal received power within the preset time period before and after the time point.

[0121] Optionally, the data fitting module 20 is used to:

[0122] According to the multiple level change values ​​corresponding to the user terminal and changing along the time sequence, fitting a distribution fitting curve of the level value and time sequence of the reference signal received power when the user terminal performs cell switching;

[0123] According to the number of sampling points corresponding to each level change value in the distribution fitting curve, the traffic volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the traffic volume of the main service cell and the traffic volume of the neighboring cell.

[0124] Optionally, the data fitting module 20 is used to:

[0125] Fitting a distribution fitting curve of the level value and the time sequence of the reference signal received power corresponding to the user terminal when the user terminal performs cell switching according to the multiple level change values ​​corresponding to the user terminal that change along the time sequence;

[0126] According to the distribution fitting curve fitting corresponding to the multiple user terminals, and according to the number of sampling points corresponding to each level change value in the distribution fitting curve, the business volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the business volume of the main service cell and the business volume of the neighboring cell.

[0127] The steps implemented by the functional units of the cell switching boundary adjustment device may refer to the various embodiments of the cell switching boundary adjustment method of the present invention, and will not be described in detail here.

[0128] In addition, the present invention also provides a cell switching boundary adjustment device, the terminal comprising: a memory, a processor, a communication bus and an adjustment program stored in the memory:

[0129] The communication bus is used to realize the connection and communication between the processor and the memory;

[0130] The processor is used to execute the adjustment program to implement the steps of each embodiment of the above-mentioned cell switching boundary adjustment method.

[0131] The present invention also provides a computer-readable storage medium, which stores one or more programs. The one or more programs can also be executed by one or more processors to implement the steps of each embodiment of the above-mentioned cell switching boundary adjustment method.

[0132] The specific implementation of the computer-readable storage medium of the present invention is basically the same as the above-mentioned embodiments of the method for adjusting the cell switching boundary, and will not be described in detail here.

[0133] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system 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 system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0134] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0135] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0136] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for adjusting a cell switching boundary, characterized in that: The method for adjusting the cell switching boundary comprises the following steps: According to the measurement report sent by the user terminal, obtaining level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell; According to the change of the level change value along the time sequence, fitting is performed to obtain a switching fitting curve of the level value and the time sequence of the reference signal received power when the user terminal performs cell switching; Determine a primary service cell switching threshold and a neighboring cell switching threshold according to the primary service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve, so as to perform cell switching according to the primary service cell switching threshold and the neighboring cell switching threshold; The step of determining the primary serving cell switching threshold and the neighboring cell switching threshold according to the primary serving cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve comprises: Determine the equal capacity moment that satisfies the preset traffic volume ratio according to the traffic volume of the main service cell and the traffic volume of the neighboring cell that change along the time sequence in the switching fitting curve; According to a time point corresponding to a preset inter-frequency measurement duration before the equal capacity moment, determine that a level value corresponding to the time point in the switching fitting curve is the neighboring cell switching threshold; According to the time point corresponding to the preset heterofrequency decision duration before the equal capacity moment, the level value corresponding to the time point in the switching fitting curve is determined as the main service cell switching threshold, wherein the sum of the preset heterofrequency measurement duration and the preset heterofrequency decision duration is less than the preset switching time threshold.

2. The method for adjusting the cell switching boundary according to claim 1, characterized in that: The step of obtaining, according to the measurement report sent by the user terminal, level change values ​​of the reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell comprises: Calculate, according to the measurement report sent by the user terminal, equal level peak points of the reference signal received power corresponding to the primary serving cell and the neighboring cell; The level change value of the user terminal in a preset time period before and after the equal level peak point is obtained according to the measurement report.

3. The method for adjusting the cell switching boundary as claimed in claim 2, characterized in that: The step of calculating the equal level peak points of the reference signal received power corresponding to the primary serving cell and the neighboring cell according to the measurement report sent by the user terminal comprises: Obtaining, according to the measurement report sent by the user terminal, reference signal received power level values ​​corresponding to the primary serving cell and the neighboring cell respectively; Counting the corresponding measurement report sample quantity when the reference signal received power level values ​​of the primary serving cell and the neighboring cell are equal; The level value corresponding to the measurement report sample volume with the largest value is set as the equal-level peak point.

4. The method for adjusting the cell switching boundary as claimed in claim 2, characterized in that: The step of obtaining, according to the measurement report, a level change value of the user terminal in a preset time period before and after the equal level peak point includes: Determine, according to the preset user identification parameter and the measurement report, a time point at which the level value of the reference signal received power of each of the user terminals within a preset time length is equal to the equal-level peak point; Obtain a level change value of the reference signal received power within the preset time period before and after the time point.

5. The method for adjusting the cell switching boundary according to claim 1, characterized in that: The step of fitting a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing comprises: According to the multiple level change values ​​corresponding to the user terminal and changing along the time sequence, fitting a distribution fitting curve of the level value and time sequence of the reference signal received power when the user terminal performs cell switching; According to the number of sampling points corresponding to each level change value in the distribution fitting curve, the traffic volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the traffic volume of the primary service cell and the traffic volume of the neighboring cell.

6. The method for adjusting the cell switching boundary according to claim 1, characterized in that: The step of fitting a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing comprises: Fitting a distribution fitting curve of the level value and the time sequence of the reference signal received power corresponding to the user terminal when the user terminal performs cell switching according to the multiple level change values ​​corresponding to the user terminal that change along the time sequence; According to the distribution fitting curve fitting corresponding to the multiple user terminals, and according to the number of sampling points corresponding to each level change value in the distribution fitting curve, the business volume corresponding to each time series in the distribution fitting curve is counted to generate the switching fitting curve including the business volume of the main service cell and the business volume of the neighboring cell.

7. A cell switching boundary adjustment device, characterized in that: The cell switching boundary adjustment device includes: A data acquisition module, configured to obtain, according to a measurement report sent by a user terminal, level change values ​​of reference signal received power corresponding to the primary serving cell and the neighboring cell respectively within a preset time period before and after the user terminal performs cell switching between the primary serving cell and the neighboring cell; A data fitting module, used for fitting a switching fitting curve of the level value and timing of the reference signal received power when the user terminal performs cell switching according to the change of the level change value along the timing; A threshold generation module is used to determine the main service cell switching threshold and the neighboring cell switching threshold according to the main service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve, so as to perform cell switching according to the main service cell switching threshold and the neighboring cell switching threshold. The threshold generation module is also used to determine the equal capacity moment that meets the preset traffic volume ratio according to the main service cell traffic volume and the neighboring cell traffic volume that change along the time sequence in the switching fitting curve; according to the time point corresponding to the preset heterofrequency measurement duration before the equal capacity moment, determine that the level value corresponding to the time point in the switching fitting curve is the neighboring cell switching threshold; according to the time point corresponding to the preset heterofrequency decision duration before the equal capacity moment, determine that the level value corresponding to the time point in the switching fitting curve is the main service cell switching threshold, wherein the sum of the preset heterofrequency measurement duration and the preset heterofrequency decision duration is less than the preset switching time threshold.

8. A cell switching boundary adjustment device, characterized in that: The cell switching boundary adjustment device comprises: a memory, a processor, and an adjustment program stored in the memory and executable on the processor, wherein the adjustment program implements the steps of the cell switching boundary adjustment method according to any one of claims 1 to 6 when executed by the processor.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an adjustment program, and when the adjustment program is executed by a processor, the steps of the method for adjusting a cell switching boundary according to any one of claims 1 to 6 are implemented.

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