Cell configuration parameter determination method, device and storage medium
By determining the problem cell in the mobile communication system and adjusting its configuration parameters with adjacent cells, the problem of serious signal interference between the same frequency cells is solved, and the effect of improving user experience and optimizing network performance is achieved.
Patent Information
- Application Number
- CN202311247806.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-22
- Publication Date
- 2025-04-01
AI Technical Summary
In existing mobile communication systems, signal interference between the same frequency cells is severe, resulting in poor user communication experience, and frequency division scheduling method consumes communication resources, affecting network performance.
By obtaining the cell index parameters of each cell cell, determining the problem cell, and using it with the adjacent cell as the target cell in the optimization cluster, adjusting the configuration parameters of the target cell to change its coverage range, thereby reducing synchronous interference.
It effectively reduces the co-frequency interference between cells, improves the user's communication experience, and optimizes network performance, avoiding the waste of communication resources.
Smart Images
Figure CN119743768A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mobile communications, and in particular to a method, device and storage medium for determining cell configuration parameters. Background Art
[0002] Existing mobile communication systems have greatly improved network capacity by networking in the form of cellular networks. This also means that within a given coverage area, there are many cells using the same set of frequencies. These cells are called co-frequency cells, and the signal interference between co-frequency cells is called co-frequency interference. Co-channel interference leads to a poor communication experience for users, especially users at the edge of the cellular cell, who often experience more severe co-channel interference. Existing mobile communication technologies use frequency division scheduling to reduce co-channel interference, but frequency division scheduling consumes a certain amount of communication resources, resulting in a waste of communication resources and affecting network performance. The existing technology urgently needs a method to reduce co-channel interference by adjusting cell configuration parameters. Summary of the Invention
[0003] Embodiments of the present invention provide a method, device, and storage medium for determining cell configuration parameters, aiming to reduce co-channel interference between cells.
[0004] In a first aspect, an embodiment of the present invention provides a method for determining cell configuration parameters, including:
[0005] obtaining at least one cell indicator parameter of each cellular cell, and determining a problem cell from the cellular cells according to the cell indicator parameter;
[0006] Acquire neighboring cells of the problem cell, and determine the problem cell and the neighboring cells as target cells in an optimization cluster, wherein the neighboring cells include: same-frequency neighboring cells and different-frequency neighboring cells;
[0007] Determining target configuration parameters of each target cell according to current configuration parameters of each target cell in the optimization cluster, wherein the target configuration parameters are used to determine the coverage range of the target cell;
[0008] According to the target configuration parameters, current configuration parameters of each target cell are adjusted.
[0009] In a second aspect, an embodiment of the present invention further provides a cell configuration parameter determination device, which includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any cell configuration parameter determination method provided in the embodiments of the present invention are implemented.
[0010] In a third aspect, an embodiment of the present invention further provides a storage medium for computer-readable storage, characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any cell configuration parameter determination method provided in an embodiment of the present invention.
[0011] Embodiments of the present invention provide a method, apparatus, and storage medium for determining cell configuration parameters. The embodiments of the present invention obtain at least one cell indicator parameter for each cellular cell, determine a problem cell from the cellular cell based on the cell indicator parameter, obtain neighboring cells of the problem cell, and determine the problem cell and the neighboring cells as target cells in an optimization cluster, where the neighboring cells include co-frequency neighboring cells and inter-frequency neighboring cells. Based on the current configuration parameters of each target cell in the optimization cluster, target configuration parameters are determined for each target cell, where the target configuration parameters are used to determine the coverage range of the target cell. Based on the target configuration parameters, the current configuration parameters of each target cell are adjusted. By adjusting the cell configuration parameters, the cell coverage range can be changed to mitigate co-frequency interference between cells. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A schematic flow chart of the steps of a method for determining cell configuration parameters provided by an embodiment of the present invention;
[0013] Figure 2 A schematic diagram of a scenario for implementing the method for determining cell configuration parameters provided by an embodiment of the present invention;
[0014] Figure 3 for Figure 1 A schematic flow chart of sub-steps of a method for determining target configuration parameters in FIG.
[0015] Figure 4 for Figure 3 A schematic flow chart of sub-steps of a method for determining target configuration parameters in FIG.
[0016] Figure 5 for Figure 4 A schematic diagram of the sub-step flow of the method for determining the coverage metric value and the co-channel interference metric value in FIG.
[0017] Figure 6 A schematic block diagram of the structure of a device for determining cell configuration parameters provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0019] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.
[0020] It should be understood that the terms used in this specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.
[0021] Embodiments of the present invention provide a method, apparatus, and storage medium for determining cell configuration parameters. The method can be applied to a mobile terminal, which can be an electronic device such as a mobile phone, tablet computer, laptop computer, desktop computer, personal digital assistant, or wearable device.
[0022] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.
[0023] Please refer to Figure 1 , Figure 1 A schematic flow chart of the steps of a method for determining cell configuration parameters provided by an embodiment of the present invention.
[0024] like Figure 1 As shown, the method for determining cell configuration parameters includes steps S101 to S104.
[0025] Step S101: Obtain at least one cell indicator parameter of each cellular cell, and determine a problem cell from the cellular cells according to the cell indicator parameter.
[0026] For example, in order to determine the configuration parameters that can reduce co-channel interference through the cell configuration parameter determination method provided in the embodiment of the present application, it is necessary to first determine the problem cell with co-channel interference problem based on the cell indicator parameters of the cellular cell, so as to optimize the cell configuration parameters of the problem cell.
[0027] Exemplarily, the problem cell may be a cellular cell with a high load and co-channel interference problem. Specifically, when the load of the cellular cell is low, it means that the cellular cell can reduce co-channel interference through frequency division scheduling. Conversely, when the load of the cellular cell is high, each carrier in the frequency domain has a high load, and co-channel interference cannot be reduced through frequency division scheduling. Therefore, cellular cells with high loads are suitable for adjusting configuration parameters using the cell configuration parameter determination method provided in the embodiment of the present application to reduce the co-channel interference problem.
[0028] In some embodiments, the cell indicator parameters include: physical resource block utilization rate, physical shared channel interference rate, and signal quality indicator excellent rate; obtaining at least one cell indicator parameter of each cellular cell and determining the problem cell from the cellular cell according to the cell indicator parameters include: when the physical resource block utilization rate is greater than the preset utilization rate, if the physical shared channel interference rate is greater than the preset interference rate or the signal quality indicator excellent rate is less than the preset excellent rate, determining the cellular cell as the problem cell.
[0029] Exemplarily, the physical resource block (PRB) utilization is used to reflect the load level of the cellular cell. Specifically, the PRB utilization includes: uplink PRB utilization and downlink PRB utilization. In the case where the physical resource block utilization is greater than the preset utilization, if the physical shared channel interference rate is greater than the preset interference rate or the signal quality indication excellent rate is less than the preset excellent rate, the cellular cell is determined as the problem cell, including: in the case where the uplink physical resource block utilization and the downlink physical resource block utilization are greater than the preset utilization, if the physical shared channel interference rate is greater than the preset interference rate or the signal quality indication excellent rate is less than the preset excellent rate, the cellular cell is determined as the problem cell.
[0030] Exemplarily, the physical shared channel interference rate includes the uplink physical shared channel (PUSCH) interference rate, and the signal quality indicator quality rate includes the downlink signal quality indicator (CQI) quality rate. The PUSCH interference rate and the downlink CQI quality rate are used to reflect the level of co-channel interference in a cell. Therefore, if at least one of the PUSCH interference rate and the downlink CQI quality rate meets a preset condition, the cell is determined to be a problem cell with co-channel interference.
[0031] Step S102: Acquire neighboring cells of the problem cell, and determine the problem cell and the neighboring cells as target cells in an optimization cluster. The neighboring cells include: same-frequency neighboring cells and different-frequency neighboring cells.
[0032] Exemplarily, an adjacent cell refers to a cell that is adjacent to the problem cell, has a physical location association, and transmits signals in the same frequency domain or a different frequency domain; wherein, an adjacent cell that transmits signals in the same frequency domain as the problem cell is a same-frequency adjacent cell, and an adjacent cell that transmits signals in a different frequency domain from the problem cell is a different-frequency adjacent cell.
[0033] Please refer to Figure 2 , Figure 2 A schematic diagram of a scenario for implementing the method for determining cell configuration parameters provided in an embodiment of the present invention.
[0034] For example, there may be co-channel interference between cells transmitting signals in the same frequency domain. Figure 2 As shown, f1_1, f1_2, f1_3 and f2_1, f2_2, f2_3 respectively represent two groups of cells transmitting signals in the same frequency domain, i.e., f1_1, f1_2, f1_3 are mutually co-frequency adjacent cells, and f2_1, f2_2, f2_3 are mutually co-frequency adjacent cells. Since co-frequency interference exists between co-frequency adjacent cells, and co-frequency interference is particularly severe at the edge of a cellular cell, the cell configuration parameter determination method provided in the embodiment of the present application adjusts the cell configuration parameters to ensure that co-frequency adjacent cells are not adjacent to each other.
[0035] like Figure 2 As shown in the figure on the left, the cell coverage scenario before configuration parameter adjustment is shown. In frequency domain 1, adjacent co-frequency cells f1_1, f1_2, and f1_3 are adjacent to each other, and in frequency domain 2, adjacent co-frequency cells f2_1, f2_2, and f2_3 are also adjacent to each other. Therefore, there is significant co-channel interference between the cells in frequency domains 1 and 2. The figure on the right shows the cell coverage scenario after configuration parameter adjustment. Cells in frequency domains 1 and 2 form interleaved coverage, meaning that cells in the same frequency domain are not adjacent to each other. Cells in different frequency domains separate the cells in the same frequency domain, creating discontinuous coverage and reducing co-channel interference between adjacent co-frequency cells.
[0036] Specifically, Figure 2For example, assuming that f1_1 and f2_1 are problem cells, the neighboring cells of problem cell f1_1 include the same-frequency neighboring cells f1_2 and f1_3, and the different-frequency neighboring cell f2_1; the neighboring cells of problem cell f2_1 include the same-frequency neighboring cells f2_2 and f2_3, and the different-frequency neighboring cell f1_1; therefore, the target cells in the optimization cluster include f1_1, f1_2, f1_3, f2_1, f2_2, and f2_3.
[0037] Therefore, the problem cell and the co-frequency cells and inter-frequency cells adjacent to the problem cell are collectively identified as target cells within the optimization cluster. The configuration parameters are optimized within the optimization cluster, and the coverage range of the target cells within the optimization cluster is adjusted to obtain target configuration parameters that can reduce co-frequency interference.
[0038] Step S103: Determine target configuration parameters of each target cell according to current configuration parameters of each target cell in the optimization cluster, where the target configuration parameters are used to determine the coverage of the target cell.
[0039] Exemplary target configuration parameters include: Synchronization Signal / Physical Broadcast Channel Block (SSB) weights and mobility interoperability parameters. The SSB weights are used to control the transmission of synchronization signals by cell base stations and include azimuth, downtilt, horizontal beamwidth, vertical beamwidth, and power. Mobility interoperability parameters include inter-frequency measurement start threshold, inter-frequency measurement stop threshold, and inter-frequency handover threshold.
[0040] Exemplarily, by adjusting the SSB weight and mobility interoperability parameters of each target cell, the coverage of each target cell can be changed.
[0041] Please refer to Figure 3 , Figure 3 for Figure 1 Schematic diagram of the sub-step flow chart of the method for determining cell configuration parameters.
[0042] like Figure 3 As shown, in some embodiments, step S103 determines the target configuration parameters of each target cell according to the current configuration parameters of each target cell in the optimization cluster, including: step S1031, determining at least one set of candidate configuration parameters for each target cell according to the current configuration parameters of each target cell in the optimization cluster; step S1032, determining the target configuration parameters of each target cell from the candidate configuration parameters according to the residence status of at least one user equipment under each candidate configuration parameter.
[0043] Exemplarily, in step S1031, at least one set of candidate configuration parameters is determined based on the value range of the configuration parameters of the target cell and the current configuration parameters. Specifically, the candidate configuration parameters are different from the current configuration parameters.
[0044] Exemplarily, based on a preset intelligent search algorithm, candidate configuration parameters are determined from a preset configuration parameter set. Specifically, the SSB weight set that can be configured in a cell is represented by Set weight Indicates that the set of mobility interoperability parameters that can be configured in a cell is represented by Set para Indicated by . Among them, the intelligent search algorithm can be ant colony algorithm, particle swarm algorithm, etc., which are not limited here. Figure 2 For example, based on the ant colony algorithm, from the SSB weight set Set weight and mobility interoperability parameter set Set para In the optimization cluster, configuration parameters are selected for the target cells f1_1, f1_2, f1_3, f2_1, f2_2, and f2_3, respectively, to obtain at least one set of candidate configuration parameters.
[0045] For example, in step S1032, the residency status of each user equipment under each set of candidate configuration parameters is predicted, and the target configuration parameters are determined from the candidate configuration parameters according to the residency status of the user equipment. Specifically, the current configuration parameters of the optimized cluster {W f1_1,his ,…,W f2_3,his ,P f1_1,his ,…,P f2_3,his}Recorded as WP his , where W f1_1,his ,…,W f2_3,his Respectively represent the current SSB weights of f1_1, ..., f2_3, P f11,his ,…,P f23,his They represent the current mobility interoperability parameters of f1_1, ..., f2_3 respectively.
[0046] For example, the optimization clusters of 6 cells f1_1, ..., f2_3 are in Set weight Select a new SSB weight in Set para Select a new mobility interoperability parameter from the optimization cluster to obtain at least one set of candidate configuration parameters. Specifically, each set of candidate configuration parameters {W f1_1,new ,…W f2_3,new ,P f1_1,new ,…,P f2_3,new}Recorded as WP new , where W f1_1,new ,…W f2_3,newRespectively represent the SSB weights of f1_1, ..., f2_3 in the set of candidate configuration parameters, P f1_1,new ,…,P f2_3,new They respectively represent the mobility interoperability parameters of f1_1, ..., f2_3 in the set of candidate configuration parameters.
[0047] Please refer to Figure 4 , Figure 4 for Figure 3 Flowchart of the sub-steps of the target configuration parameter determination method in .
[0048] like Figure 4 As shown, in some embodiments, step S1032 determines the target configuration parameters of each target cell from the candidate configuration parameters based on the residence status of at least one user equipment under each of the candidate configuration parameters, including: step S201, determining the coverage metric value and the co-channel interference metric value of each target cell in the optimization cluster under the candidate configuration parameters based on the residence status; step S202, determining the target configuration parameter from the candidate configuration parameters based on the coverage metric value and the co-channel interference metric value.
[0049] Exemplarily, the cell configuration parameter determination method provided in the embodiment of the present application is intended to ensure the cell coverage range while reducing co-channel interference. Therefore, a coverage measurement value and a co-channel interference measurement value are constructed, and the candidate configuration parameter with the smallest co-channel interference measurement value among the candidate configuration parameters that can ensure that the coverage measurement value meets the coverage requirements is determined as the target configuration parameter.
[0050] Specifically, the user equipment (UE) presence is predicted for each set of candidate configuration parameters. The coverage metric and co-channel interference metric are determined based on the predicted UE presence within each target cell. The coverage metric and co-channel interference metric are determined based on the cell in which the UE resides and the interference level experienced by the UE in other co-frequency cells within the current area.
[0051] Please refer to Figure 5 , Figure 5 for Figure 4 A flowchart of the sub-steps of the method for determining the coverage metric value and the co-channel interference metric value in FIG.
[0052] like Figure 5As shown, in some embodiments, step S201 determines the coverage metric value and the co-channel interference metric value of each target cell in the optimized cluster under the candidate configuration parameters according to the residence situation, including: step S2011, obtaining user equipment parameters of each user equipment in each target cell; step S2012, determining the target service cell where each user equipment resides under the candidate configuration parameters according to the user equipment parameters; step S2013, determining the coverage metric value and the co-channel interference metric value of the target service cell according to the signal strength parameter and signal to interference and noise ratio parameter of each user equipment in the target service cell.
[0053] For example, in order to determine the residency status of the user equipment under the candidate configuration parameters, that is, to predict the target serving cell where each user equipment resides under the candidate configuration parameters, it is necessary to obtain the user equipment parameters of the user equipment currently in each target cell. Specifically, the user equipment parameters include reference signal received power (RSRP) and spatial location information, that is, the RSRP and spatial location information of the user equipment in the current serving cell and the neighboring cells of the current serving cell are obtained. The spatial location information includes the horizontal direction of arrival (HDOA) and the vertical direction of arrival (VDOA).
[0054] For example, the user equipment can directly measure the RSRP of different cells, and can also determine the spatial location information of the user equipment in the current serving cell and the adjacent cells with the same frequency by sending a sounding reference signal (SRS), and infer the spatial location information of the user equipment in the adjacent cells with different frequencies based on the spatial location information of the user equipment in the current frequency domain.
[0055] In some embodiments, step S2011 obtains the user equipment parameters of each user equipment in each target cell, including: obtaining the first user equipment parameters of the user equipment in the current service cell and the second user equipment parameters of the user equipment in the same-frequency adjacent cell of the current service cell; determining the third user equipment parameters of the user equipment in the different-frequency adjacent cell of the current service cell based on at least one of the first user equipment parameters and the second user equipment parameters; or determining the third user equipment parameters of the user equipment in the different-frequency adjacent cell of the current service cell based on the device location information of the user equipment and the current configuration parameters and cell location information of the different-frequency adjacent cell.
[0056] For example, the active antenna unit (AAU) in the base station is used to transmit and receive radio frequency signals. Different cells can use the same AAU, referred to as a shared AAU. Cells sharing an AAU have the same spatial location information. Therefore, if an inter-frequency neighboring cell shares an AAU with the current serving cell, the third user equipment parameters of the inter-frequency neighboring cell can be directly determined based on the first user equipment parameters of the current serving cell. If an inter-frequency neighboring cell shares an AAU with any co-frequency neighboring cell, the third user equipment parameters of the inter-frequency neighboring cell can be directly determined based on the second user equipment parameters of the co-frequency neighboring cell. The current serving cell refers to the cellular cell in which the user equipment is currently actually residing.
[0057] For example, if the inter-frequency neighboring cell does not share an AAU with the current serving cell and the co-frequency neighboring cell, but is co-sited with the current serving cell or the co-frequency neighboring cell, that is, it is from the same base station as the current serving cell or the co-frequency neighboring cell, then the first mechanical azimuth and first mechanical downtilt of the co-sited cell and the second mechanical azimuth and second mechanical downtilt of the inter-frequency neighboring cell can be obtained to determine the third user equipment parameter. Specifically, the HDOA of the inter-frequency neighboring cell is equal to the HDOA of the co-sited cell plus the difference between the first mechanical azimuth and the second mechanical azimuth; the VDOA of the inter-frequency neighboring cell is equal to the VDOA of the co-sited cell plus the difference between the first mechanical downtilt and the second mechanical downtilt.
[0058] For example, if the inter-frequency neighboring cell does not share an AAU and a co-site with the current serving cell and the same-frequency neighboring cell, the third user equipment parameter can be determined based on the user's first longitude and latitude, first altitude, and the second longitude and latitude, second altitude of the inter-frequency neighboring cell, as well as the second mechanical azimuth and second mechanical downtilt of the inter-frequency neighboring cell. Specifically, the absolute angle of the user equipment relative to the inter-frequency neighboring cell is calculated based on the first longitude and latitude, first altitude, second longitude and latitude, and second altitude, and then the HDOA and VDOA of the user equipment in the inter-frequency neighboring cell are determined based on the second mechanical azimuth and second mechanical downtilt of the inter-frequency neighboring cell.
[0059] In some embodiments, step S2012 determines, based on the user equipment parameters, a target service cell in which each user equipment resides under the candidate configuration parameters, including: determining, based on the first antenna gain of each target cell under the current configuration parameters and the second antenna gain of each target cell under the candidate configuration parameters, a target signal strength of each user equipment relative to each target cell under the candidate configuration parameters; and determining, based on the target signal strength, a target service cell in which each user equipment resides under the candidate configuration parameters.
[0060] Exemplarily, based on the user equipment parameters of the user equipment in each target cell, the target signal strength of the user in each target cell under the candidate configuration parameters can be determined, such as the RSRP in each target cell; and then the target service cell to be resided is determined based on the target signal strength, for example, the target cell with the largest target signal strength is determined as the target service cell.
[0061] Taking RSRP as an example, the SSB weight of user equipment m in cell n is calculated according to the following formula: n,new RSRP in case of:
[0062]
[0063] Among them, RSRP m,n,new Indicates that the SSB weight of user equipment m in cell n is W n,new RSRP under the condition of , that is, the target signal strength of user equipment m relative to the target cell n under the candidate configuration parameters; RSRP m,n,his represents the RSRP of user equipment m under the current configuration parameters of cell n, Indicates that the SSB weight of user equipment m in cell n is W n,new The second antenna gain in the case of represents the first antenna gain of user equipment m under the current configuration parameters of cell n.
[0064] Exemplarily, after determining the target signal strength of each user equipment relative to each target cell under the candidate configuration parameters, a target serving cell where each user equipment resides under the candidate configuration parameters is determined according to the target signal strength.
[0065] In some embodiments, determining the target service cell where each user device resides under the candidate configuration parameters based on the target signal strength includes: when the target cell with the largest target signal strength and the current service cell of the user device are co-frequency adjacent cells, determining the target service cell where the user device resides under the candidate configuration parameters based on a preset co-frequency switching threshold; when the target cell with the largest target signal strength and the current service cell of the user device are inter-frequency adjacent cells, determining the target service cell where the user device resides under the candidate configuration parameters based on a preset inter-frequency start-up threshold, inter-frequency stop-measurement threshold, and inter-frequency switching threshold.
[0066] Specifically, the target cell with the largest target signal strength is determined. If the target cell is a co-frequency adjacent cell of the current serving cell of the user equipment, and the difference between the target signal strength of the target cell and the target signal strength of the current serving cell is greater than the co-frequency switching threshold, then the target cell is determined as the target serving cell where the user equipment resides under the candidate configuration parameters; if the target cell is a heterofrequency adjacent cell of the current serving cell of the user equipment, and the target signal strength predicted by the current serving cell under the candidate configuration parameters is between the heterofrequency start-up threshold and the heterofrequency stop-measurement threshold, and the difference between the target signal strength of the target cell and the target signal strength of the current serving cell is greater than the heterofrequency switching threshold, then the target cell is determined as the target serving cell where the user equipment resides under the candidate configuration parameters.
[0067] In some embodiments, step S2013, determining the coverage metric value and the co-channel interference metric value of the target serving cell based on the signal strength parameter and the signal to interference plus noise ratio parameter of each user equipment in the target serving cell, includes: determining a signal strength cumulative distribution function based on the signal strength parameter of each user equipment in each target serving cell to obtain the coverage metric value of the candidate configuration parameter; and determining a signal to interference plus noise ratio cumulative distribution function based on the signal to interference plus noise ratio parameter of each user equipment in each candidate configuration parameter to obtain the co-channel interference metric value of the target serving cell.
[0068] Exemplarily, a signal strength cumulative distribution function (CDF) is constructed based on the RSRP of the user equipment in the target serving cell; the signal to interference plus noise ratio (SINR) of the user equipment under the candidate configuration parameters is determined based on the ratio of the RSRP of the user in the target resident cell to the RSRP of the co-frequency adjacent cell of the target resident cell, and a signal to interference plus noise ratio cumulative distribution function is constructed based on the SINR. Specifically, the SINR can be determined according to the following formula: Where x is the new cell where user m resides, Noise is the noise power, and C is the set of cellular cells in the optimization cluster that have the same frequency as cell x.
[0069] For example, the RSRP when the value of the signal strength cumulative distribution function reaches the first cumulative threshold is used as the coverage metric value. A larger coverage metric value indicates that the coverage effect of the candidate configuration parameter is better. The SINR when the value of the signal to interference and noise ratio cumulative distribution function reaches the second cumulative threshold is used as the co-channel interference metric value. A larger co-channel interference metric value indicates that the co-channel interference of the candidate configuration parameter is smaller. The first cumulative threshold and the second cumulative threshold can be set according to actual needs. For example, the first cumulative threshold can be set to 0.05 and the second cumulative threshold can be set to 0.5. Therefore, the coverage metric value and the co-channel interference metric value can be used as optimization targets. For example, the result of the weighted sum of the coverage metric value and the co-channel interference metric value is used as the optimization target.
[0070] For example, taking the ant colony algorithm as an example, the weighted sum of the coverage metric and the co-channel interference metric can be used as the pheromone concentration in the ant colony algorithm. That is, eta = α*f(RSRP cdf )+β*f(SINR cdf ), where eta represents the pheromone concentration in the ant colony algorithm, RSRP cdf Indicates the coverage metric value obtained by constructing the cumulative distribution function of RSRP, SINR cdf represents the co-channel interference metric value obtained by constructing the cumulative distribution function of SINR, α and β represent the weights corresponding to the coverage metric value and the co-channel interference metric value, respectively, and f(·) represents the normalization function.
[0071] Step S104: Adjust the current configuration parameters of each target cell according to the target configuration parameters.
[0072] For example, the current configuration parameters of each target cell in the cluster will be adjusted and optimized according to the SSB weight and mobility interoperability parameters in the target configuration parameters, so that the coverage range of each target cell is changed to achieve the effect of interspersed coverage and reduce the same-frequency interference between adjacent cells on the same frequency.
[0073] The cell configuration parameter determination method provided in the above embodiment obtains at least one cell indicator parameter for each cellular cell, determines a problem cell from the cellular cell based on the cell indicator parameter, obtains neighboring cells of the problem cell, and determines the problem cell and the neighboring cells as target cells in an optimization cluster, where the neighboring cells include co-frequency neighboring cells and inter-frequency neighboring cells, determines target configuration parameters for each target cell based on the current configuration parameters of each target cell in the optimization cluster, and uses the target configuration parameters to determine the coverage range of the target cell, and adjusts the current configuration parameters of each target cell based on the target configuration parameters. By adjusting the cell configuration parameters, the cell coverage range can be changed to reduce co-frequency interference between cells.
[0074] See also Figure 5 , Figure 5 A schematic block diagram of the structure of a device for determining cell configuration parameters provided by an embodiment of the present invention.
[0075] like Figure 5 As shown, the cell configuration parameter determination device 300 includes a processor 301 and a memory 302 , and the processor 301 and the memory 302 are connected via a bus 303 , such as an I 2 C (Inter-Integrated Circuit) bus.
[0076] Specifically, the processor 301 is used to provide computing and control capabilities to support the operation of the entire cell configuration parameter determination device. The processor 301 can be a central processing unit (CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.
[0077] Specifically, the memory 302 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.
[0078] Those skilled in the art will understand that Figure 5 The structure shown in the figure is merely a block diagram of a portion of the structure related to the embodiment of the present invention, and does not constitute a limitation on the cell configuration parameter determination device to which the embodiment of the present invention is applied. The specific cell configuration parameter determination device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.
[0079] The processor is configured to run a computer program stored in a memory, and implement any one of the cell configuration parameter determination methods provided by the embodiments of the present invention when executing the computer program.
[0080] In one embodiment, the processor is configured to run a computer program stored in the memory, and implement the following steps when executing the computer program:
[0081] obtaining at least one cell indicator parameter of each cellular cell, and determining a problem cell from the cellular cells according to the cell indicator parameter;
[0082] Acquire neighboring cells of the problem cell, and determine the problem cell and the neighboring cells as target cells in an optimization cluster, wherein the neighboring cells include: same-frequency neighboring cells and different-frequency neighboring cells;
[0083] Determining target configuration parameters of each target cell according to current configuration parameters of each target cell in the optimization cluster, wherein the target configuration parameters are used to determine the coverage range of the target cell;
[0084] According to the target configuration parameters, current configuration parameters of each target cell are adjusted.
[0085] In one embodiment, when determining the target configuration parameters of each target cell in the optimization cluster based on the current configuration parameters of each target cell, the processor is configured to implement:
[0086] determining at least one set of candidate configuration parameters for each target cell according to current configuration parameters of each target cell in the optimization cluster;
[0087] The target configuration parameters of each target cell are determined from the candidate configuration parameters according to a residency status of at least one user equipment under each candidate configuration parameter.
[0088] In one embodiment, when determining the target configuration parameters of each target cell from the candidate configuration parameters based on a residency status of at least one user equipment under each candidate configuration parameter, the processor is configured to implement:
[0089] Determining, according to the residency status, a coverage metric value and a co-channel interference metric value of each target cell in the optimized cluster under the candidate configuration parameters;
[0090] A target configuration parameter is determined from the candidate configuration parameters according to the coverage metric value and the co-channel interference metric value.
[0091] In one embodiment, when determining, based on the residency status, the coverage metric value and the co-channel interference metric value of each target cell in the optimized cluster under the candidate configuration parameters, the processor is configured to implement:
[0092] Obtaining user equipment parameters of each of the user equipments in each of the target cells;
[0093] determining, according to the user equipment parameters, a target serving cell in which each of the user equipments resides under the candidate configuration parameters;
[0094] The coverage metric value and the co-channel interference metric value of the target serving cell are determined according to the signal strength parameter and the signal to interference and noise ratio parameter of each user equipment in the target serving cell.
[0095] In one embodiment, when determining, based on the user equipment parameters, the target serving cell where each user equipment resides under the candidate configuration parameters, the processor is configured to implement:
[0096] determining, based on the first antenna gain of each target cell under the current configuration parameters and the second antenna gain of each target cell under the candidate configuration parameters, a target signal strength of each user equipment relative to each target cell under the candidate configuration parameters;
[0097] A target serving cell for each of the user equipments to reside in under the candidate configuration parameters is determined according to the target signal strength.
[0098] In one embodiment, when implementing obtaining the user equipment parameters of each user equipment in each target cell, the processor is configured to implement:
[0099] Acquire a first user equipment parameter of the user equipment in a current serving cell and a second user equipment parameter of the user equipment in a co-frequency adjacent cell of the current serving cell;
[0100] Determine the third user equipment parameter of the user equipment in the inter-frequency adjacent cell of the current serving cell based on at least one of the first user equipment parameter and the second user equipment parameter; or determine the third user equipment parameter of the user equipment in the inter-frequency adjacent cell of the current serving cell based on the device location information of the user equipment and the current configuration parameters and cell location information of the inter-frequency adjacent cell.
[0101] In one embodiment, when the processor determines the coverage metric value and the co-channel interference metric value of the target serving cell according to the signal strength parameter and the signal to interference and noise ratio parameter of each user equipment in the target serving cell, it is configured to implement:
[0102] Determine a signal strength cumulative distribution function according to the signal strength parameters of each user equipment in each target serving cell, and obtain a coverage metric value of the candidate configuration parameter;
[0103] A signal to interference plus noise ratio cumulative distribution function is determined according to the signal to interference plus noise ratio parameter of each user equipment in each target serving cell, and a co-channel interference metric value of the candidate configuration parameter is obtained.
[0104] In one embodiment, when acquiring at least one cell indicator parameter of each cellular cell and determining a problem cell from the cellular cells according to the cell indicator parameter, the processor is configured to implement:
[0105] In the case where the physical resource block utilization rate is greater than the preset utilization rate, if the physical shared channel interference rate is greater than the preset interference rate or the signal quality indicator good rate is less than the preset good rate, the cellular cell is determined as the problem cell.
[0106] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the cell configuration parameter determination device described above can refer to the corresponding process in the aforementioned cell configuration parameter determination method embodiment, and will not be repeated here.
[0107] An embodiment of the present invention also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any cell configuration parameter determination method provided in an embodiment of the present invention.
[0108] The storage medium may be an internal storage unit of the cell configuration parameter determination apparatus described in the aforementioned embodiment, such as a hard disk or memory of the cell configuration parameter determination apparatus. The storage medium may also be an external storage device of the cell configuration parameter determination apparatus, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the cell configuration parameter determination apparatus.
[0109] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable, and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media generally embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.
[0110] The serial numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the advantages or disadvantages of the embodiments. The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.
Claims
1. A method for determining cell configuration parameters, characterized in that: The method includes: Acquire at least one cell indicator parameter of each cellular cell, and determine a problem cell from the cellular cells according to the cell indicator parameter; Acquire neighboring cells of the problem cell, and determine the problem cell and the neighboring cells as target cells in an optimization cluster, wherein the neighboring cells include: same-frequency neighboring cells and different-frequency neighboring cells; Determining target configuration parameters of each target cell according to current configuration parameters of each target cell in the optimization cluster, wherein the target configuration parameters are used to determine the coverage of the target cell; According to the target configuration parameters, current configuration parameters of each target cell are adjusted.
2. The method for determining cell configuration parameters according to claim 1, characterized in that: The determining, according to the current configuration parameters of each target cell in the optimization cluster, the target configuration parameters of each target cell includes: Determining at least one set of candidate configuration parameters for each of the target cells in the optimization cluster according to current configuration parameters of each of the target cells; According to the residency status of at least one user equipment under each of the candidate configuration parameters, a target configuration parameter of each of the target cells is determined from the candidate configuration parameters.
3. The method for determining cell configuration parameters according to claim 2, characterized in that: The determining, according to a residency status of at least one user equipment under each of the candidate configuration parameters, a target configuration parameter of each of the target cells from the candidate configuration parameters comprises: Determine, according to the residency status, a coverage metric value and a co-channel interference metric value of each target cell in the optimization cluster under the candidate configuration parameters; A target configuration parameter is determined from the candidate configuration parameters according to the coverage metric value and the co-channel interference metric value.
4. The method for determining cell configuration parameters according to claim 3, characterized in that: The determining, according to the residence condition, coverage metric values and co-channel interference metric values of each target cell in the optimization cluster under the candidate configuration parameters includes: Acquiring user equipment parameters of each of the user equipments in each of the target cells; Determining, according to the user equipment parameters, a target serving cell where each of the user equipment resides under the candidate configuration parameters; The coverage metric value and the co-channel interference metric value of the target serving cell are determined according to a signal strength parameter and a signal to interference plus noise ratio parameter of each user equipment in the target serving cell.
5. The method for determining cell configuration parameters according to claim 4, characterized in that: The determining, according to the user equipment parameters, a target serving cell where each user equipment resides under the candidate configuration parameters includes: Determining, according to the first antenna gain of each target cell under the current configuration parameter and the second antenna gain of each target cell under the candidate configuration parameter, a target signal strength of each user equipment relative to each target cell under the candidate configuration parameter; A target serving cell in which each of the user equipment resides under the candidate configuration parameters is determined according to the target signal strength.
6. The method for determining cell configuration parameters according to claim 4, characterized in that: The acquiring of user equipment parameters of each user equipment in each target cell includes: Acquire a first user equipment parameter of the user equipment in a current serving cell and a second user equipment parameter of the user equipment in a co-frequency adjacent cell of the current serving cell; Determine a third user equipment parameter of the user equipment in an inter-frequency adjacent cell of the current serving cell according to at least one of the first user equipment parameter and the second user equipment parameter; or determine a third user equipment parameter of the user equipment in an inter-frequency adjacent cell of the current serving cell according to the device location information of the user equipment and the current configuration parameters and cell location information of the inter-frequency adjacent cell.
7. The method for determining cell configuration parameters according to claim 4, characterized in that: The determining, according to a signal strength parameter and a signal to interference noise ratio parameter of each user equipment in the target serving cell, the coverage metric value and the co-channel interference metric value of the target serving cell comprises: Determine a signal strength cumulative distribution function according to a signal strength parameter of each user equipment in each target serving cell, and obtain a coverage metric value of the candidate configuration parameter; A signal to interference plus noise ratio cumulative distribution function is determined according to a signal to interference plus noise ratio parameter of each user equipment in each target serving cell, and a co-channel interference metric value of the candidate configuration parameter is obtained.
8. The method for determining cell configuration parameters according to any one of claims 1 to 7, characterized in that: The cell indicator parameters include: physical resource block utilization rate, physical shared channel interference rate, and signal quality indicator good rate; the step of obtaining at least one cell indicator parameter of each cellular cell and determining a problem cell from the cellular cell according to the cell indicator parameter includes: In the case where the physical resource block utilization rate is greater than the preset utilization rate, if the physical shared channel interference rate is greater than the preset interference rate or the signal quality indication good rate is less than the preset good rate, the cellular cell is determined as the problem cell.
9. A cell configuration parameter determination device, characterized in that: The device includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the method for determining cell configuration parameters according to any one of claims 1 to 8 are realized.
10. A storage medium for computer-readable storage, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the method for determining cell configuration parameters according to any one of claims 1 to 8.