Cell capacity expansion method, electronic device, storage medium and program product

Abstract

The invention provides a cell capacity expansion method, electronic equipment, a storage medium and a program product, relates to the technical field of communication, and is used for improving the network performance of a cell. The method comprises the following steps: acquiring a physical resource block (PRB) utilization rate interval distribution index of a target cell in a statistical period; the PRB utilization rate interval distribution index is used for indicating the distribution number and / or distribution proportion of the PRB resource utilization rate of each sampling period in a plurality of predefined intervals in a plurality of sampling periods of the target cell in the statistical period; and expanding the capacity of the target cell under the condition that the target cell is determined to be in a high-load state based on the PRB utilization rate interval distribution index.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a method for cell expansion, an electronic device, a storage medium, and a program product. Background Art

[0002] In order to cope with the increasing data transmission requirements and service quality requirements of users, operators will expand the network when the network resources provided by the cell are insufficient to meet the user needs, so as to ensure that the network can operate stably and efficiently.

[0003] Common network expansion methods usually make decisions based on the average network-level metrics during busy hours. However, in scenarios such as high-speed railways and subways, due to the short time that a train passes through a single cell and the concentrated user access, it will bring the problem of instantaneous load increase to the cell. The common network expansion evaluation metrics cannot accurately capture the instantaneous high load situation of the cell, resulting in an inability to accurately determine whether the cell needs to be expanded, and further may lead to the problem that the cell resources cannot meet the user access needs, affecting the network performance of the cell. Summary of the Invention

[0004] This application provides a method for cell expansion, an electronic device, a storage medium, and a program product, which are used to improve the network performance of the cell.

[0005] In a first aspect, this application provides a method for cell expansion, including: obtaining the distribution index of the physical resource block (PRB) utilization rate interval of a target cell within a statistical period; the PRB utilization rate interval distribution index is used to indicate the distribution quantity and / or distribution ratio of the PRB resource utilization rate of each sampling period of the target cell within multiple predefined intervals during multiple sampling periods within the statistical period; when it is determined that the target cell is in a high load state based on the PRB utilization rate interval distribution index, expanding the target cell.

[0006] The method for cell expansion provided by this application can expand the target cell when it is determined that the target cell is in a high load state based on the PRB utilization rate interval distribution index. Since the PRB utilization rate interval distribution index can reflect the distribution of the PRB utilization rate of the target cell within a short time period within the statistical period, using the PRB utilization rate interval distribution index as an evaluation index to evaluate whether the target cell is in a high load state can capture the instantaneous high load situation of the target cell, thereby improving the accuracy of judging whether the target cell needs to be expanded. Further, when the target cell is in a high load state, timely expanding the cell can ensure that the cell maintains stable performance during the network demand peak, thereby improving the user experience. Avoid problems such as a decline in call quality and a slowdown in data transmission speed caused by network congestion, thereby improving the network performance of the cell.

[0007] A possible implementation manner, the method further includes: determining, based on the PRB utilization interval distribution index, a first distribution ratio corresponding to the PRB resource utilization rate greater than or equal to a first preset utilization threshold in the PRB resource utilization rate of each sampling period; and determining that the target cell is in a high-load state within the statistical period when the first distribution ratio is greater than or equal to a second preset ratio threshold.

[0008] A possible implementation manner, determining that the target cell is in a high-load state within the statistical period when the first distribution ratio is greater than or equal to a second preset ratio threshold includes: determining that the target cell is in a high-load state within the statistical period when the cell load index meets a first preset condition and the first distribution ratio is greater than or equal to a second preset ratio threshold; wherein, the cell load index meeting the first preset condition includes at least one of the following: the average number of radio resource control (RRC) connected users is greater than a first threshold; the maximum average number of RRC connected users is greater than a second threshold; the cell air interface traffic volume is greater than a third threshold; the average user throughput rate is less than a fourth threshold.

[0009] A possible implementation manner, the method further includes: determining an equivalent distribution index of the PRB utilization interval of the target cell based on the distribution ratio of the PRB resource utilization rate of each sampling period in each predefined interval in the PRB utilization interval distribution index and the service utilization ratio of the target cell within the statistical period; the service utilization ratio is used to represent the ratio corresponding to the working state of the target cell within the statistical period; and determining whether the target cell is in a high-load state within the statistical period based on the equivalent distribution index of the PRB utilization interval.

[0010] A possible implementation manner, the service utilization ratio is: the ratio of the PRB resource utilization rate greater than or equal to a second preset utilization threshold in the PRB resource utilization rate of each sampling period of the target cell within the statistical period to the PRB resource utilization rate of each sampling period.

[0011] A possible implementation manner, the service utilization ratio is: the ratio of the total scheduling duration of the target cell within the statistical period to the cycle duration of the statistical period.

[0012] A possible implementation method is to determine whether the target cell is in a high-load state within a statistical period based on the equivalent distribution index of the PRB utilization rate interval, including: determining, based on the equivalent distribution index of the PRB utilization rate interval, the second distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the third preset utilization rate threshold in the PRB resource utilization rate of each sampling period; and determining that the target cell is in a high-load state within the statistical period when the second distribution ratio is greater than or equal to the third preset ratio threshold.

[0013] A possible implementation method is to determine that the target cell is in a high-load state within a statistical period when the second distribution ratio is greater than or equal to the third preset ratio threshold, including: determining that the target cell is in a high-load state within the statistical period when the cell load index meets the second preset condition and the second distribution ratio is greater than or equal to the third preset ratio threshold; where the cell load index meeting the second preset condition includes at least one of the following: the average number of RRC-connected users is greater than the fifth threshold; the maximum average number of RRC-connected users is greater than the sixth threshold; the cell air interface service traffic is greater than the seventh threshold; the average user throughput rate is less than the eighth threshold.

[0014] A possible implementation method is to expand the target cell when it is determined that the target cell is in a high-load state based on the PRB utilization rate interval distribution index, including: determining whether the target cell is in a high-load state within a statistical period based on the PRB utilization rate interval distribution index; and expanding the target cell when the ratio of the high-load statistical period of the target cell to the capacity expansion evaluation period is greater than the first preset ratio threshold; the high-load statistical period is the statistical period in which the target cell is in a high-load state during the capacity expansion evaluation period.

[0015] In a second aspect, the present application provides a cell capacity expansion device, including: an acquisition module and a processing module; the acquisition module is used to acquire the PRB utilization rate interval distribution index of the target cell within a statistical period; the PRB utilization rate interval distribution index is used to indicate the distribution quantity and / or distribution ratio of the PRB resource utilization rate of each sampling period of the target cell within a plurality of sampling periods within the statistical period in a plurality of predefined intervals; the processing module is used to expand the target cell when it is determined that the target cell is in a high-load state based on the PRB utilization rate interval distribution index.

[0016] In a possible implementation method, the processing module is specifically configured to determine, based on the PRB utilization rate interval distribution index, the first distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the first preset utilization rate threshold in the PRB resource utilization rate of each sampling period; and determine that the target cell is in a high-load state within the statistical period when the first distribution ratio is greater than or equal to the second preset ratio threshold.

[0017] A possible implementation, a processing module, specifically used to determine that the target cell is in a high-load state during the statistical period when the cell load indicator meets the first preset condition and the first distribution ratio is greater than or equal to the second preset ratio threshold; wherein, the cell load indicator meeting the first preset condition includes at least one of the following: the average number of RRC-connected users is greater than the first threshold; the maximum number of RRC-connected users is greater than the second threshold; the cell radio interface traffic is greater than the third threshold; the average user throughput is less than the fourth threshold.

[0018] A possible implementation, a processing module, specifically used to determine the equivalent distribution index of the PRB utilization rate interval of the target cell based on the distribution ratio of the PRB resource utilization rate in each sampling period within each predefined interval in the PRB utilization rate interval distribution index and the service utilization ratio of the target cell during the statistical period; the service utilization ratio is used to represent the ratio corresponding to the working state of the target cell during the statistical period; and determine whether the target cell is in a high-load state during the statistical period based on the equivalent distribution index of the PRB utilization rate interval.

[0019] A possible implementation, the service utilization ratio is: the ratio of the PRB resource utilization rate greater than or equal to the second preset utilization threshold in the PRB resource utilization rate of each sampling period of the target cell during the statistical period to the PRB resource utilization rate of each sampling period.

[0020] A possible implementation, the service utilization ratio is: the ratio of the total scheduling duration of the target cell during the statistical period to the cycle duration of the statistical period.

[0021] A possible implementation, a processing module, specifically used to determine the second distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the third preset utilization threshold in the PRB resource utilization rate of each sampling period based on the equivalent distribution index of the PRB utilization rate interval; and determine that the target cell is in a high-load state during the statistical period when the second distribution ratio is greater than or equal to the third preset ratio threshold.

[0022] A possible implementation, a processing module, specifically used to determine that the target cell is in a high-load state during the statistical period when the cell load indicator meets the second preset condition and the second distribution ratio is greater than or equal to the third preset ratio threshold; wherein, the cell load indicator meeting the second preset condition includes at least one of the following: the average number of RRC-connected users is greater than the fifth threshold; the maximum number of RRC-connected users is greater than the sixth threshold; the cell radio interface traffic is greater than the seventh threshold; the average user throughput is less than the eighth threshold.

[0023] A possible implementation manner, a processing module, specifically configured to determine whether a target cell is in a high-load state within a statistical period based on the PRB utilization interval distribution index; when the ratio of the high-load statistical period of the target cell to the capacity expansion evaluation period is greater than a first preset ratio threshold, perform capacity expansion on the target cell; the high-load statistical period is the statistical period in which the target cell is in a high-load state during the capacity expansion evaluation period.

[0024] In a third aspect, the present application provides an electronic device, which includes: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the electronic device implements the method of the first aspect described above.

[0025] In a fourth aspect, the present application provides a computer-readable storage medium, which includes: computer software instructions; when the computer software instructions run on an electronic device, the electronic device implements the method of the first aspect described above.

[0026] In a fifth aspect, the present application provides a computer program product, which includes a computer program; when the computer program runs on an electronic device, the electronic device implements the method of the first aspect described above.

[0027] For the beneficial effects of the second to fifth aspects described above, refer to the corresponding descriptions of the first aspect, and details are not repeated here. Description of the Drawings

[0028] The drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0029] Figure 1 A schematic diagram of the number of users in a cell and the PRB utilization rate at the moment of a vehicle passing provided by the present application

[0030] Figure 2 A schematic diagram of the application environment of a cell capacity expansion method provided by the present application;

[0031] Figure 3 A flowchart of a cell capacity expansion method provided by the present application;

[0032] Figure 4 A flowchart of another cell capacity expansion method provided by the present application;

[0033] Figure 5 A schematic diagram of the composition of a cell capacity expansion device provided by the present application;

[0034] Figure 6 A schematic diagram of the structure of an electronic device provided by the present application. Detailed Implementation Manner

[0035] The following will describe in detail the cell expansion method provided by this application in conjunction with the accompanying drawings.

[0036] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0037] The terms "first" and "second" in the description of this application and in the accompanying drawings are used to distinguish different objects or different processes for the same object, rather than to describe the specific order of the objects.

[0038] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally also include other unlisted steps or units, or may optionally also include other steps or units inherent to these processes, methods, products, or devices.

[0039] It should be noted that in the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0040] To facilitate a clear description of the technical solutions of the embodiments of this application, in the embodiments of this application, words such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order.

[0041] In the description of this application, unless otherwise specified, the meaning of "a plurality of" refers to two or more.

[0042] To facilitate a clear description of the technical solutions of the embodiments of this application, the following briefly introduces the technical terms involved in this application.

[0043] The downlink radio resource utilization rate reflects the proportion of PRBs allocated by the base station to user equipment (UE) in the downlink direction, and is used to help evaluate the network load situation and performance. The downlink radio resource utilization rate satisfies the following formula.

[0044]

[0045] Among them, the number of PRBs occupied by the PDSCH channel is the number of PRBs actually used by the physical downlink shared channel (PDSCH) within the statistical period; the available PRB number of the per-empty shunt downlink PDSCH channel refers to the number of PRBs available for data transmission in each time slot of the downlink PDSCH channel within a statistical period; the average maximum scheduling layer number in the downlink time domain of the cell is the average value of the maximum scheduling layer numbers in each time slot in the downlink link of the cell, and the maximum scheduling layer numbers in each time slot do not include the value of 0.

[0046] The uplink radio resource utilization rate reflects the proportion of PRBs allocated by the base station to user equipment (UE) in the uplink direction, and is used to help evaluate the network load situation and performance. The uplink radio resource utilization rate satisfies the following formula.

[0047]

[0048] Among them, the number of PRBs occupied by the PUSCH channel is the number of PRBs actually used by the physical uplink shared channel (PUSCH) within the statistical period; the available PRB number of the per-empty shunt uplink PUSCH channel refers to the number of PRBs available for data transmission in each time slot of the uplink PUSCH channel within a statistical period; the average maximum scheduling layer number in the uplink time domain of the cell is the average value of the maximum scheduling layer numbers in each time slot in the uplink link of the cell, and the maximum scheduling layer numbers in each time slot do not include the value of 0.

[0049] The downlink PRB utilization rate is an important indicator to measure the resource utilization efficiency of the downlink link in a wireless communication network, and can be expressed by the ratio of the number of downlink PRBs occupied by the cell to the number of available downlink PRBs within the statistical period.

[0050] The uplink PRB utilization rate is an important indicator to measure the resource utilization efficiency of the uplink link in a wireless communication network, and can be expressed by the ratio of the number of uplink PRBs occupied by the cell to the number of available uplink PRBs within the statistical period.

[0051] The average number of RRC-connected users reflects the user connection load situation processed by the base station. The average number of RRC-connected users is the average number of users in the cell in the RRC-CONNECTED state within the statistical period.

[0052] The downlink air interface service traffic of a cell refers to the amount of data transmitted between the base station and the UE through the wireless interface in a wireless communication network. The downlink air interface service traffic of a cell can be represented by the total number of bytes of the radio link control (RLC) layer user plane service data units (SDUs) successfully transmitted in the downlink within the statistical period in the cell.

[0053] The uplink air interface service traffic of a cell refers to the amount of data transmitted between the UE and the base station through the wireless interface in a wireless communication network. The uplink air interface service traffic of a cell can be represented by the total number of bytes of the RLC layer user plane SDUs successfully received in the uplink within the statistical period in the cell.

[0054] The maximum number of RRC-connected users is the maximum number of users in the RRC-CONNECTED state in the cell within the statistical period.

[0055] The average downlink throughput per user is an indicator to measure the data transmission rate received by each UE from the base station in a wireless communication network. The average downlink throughput per user is the average downlink service throughput per single user in a 5G network.

[0056] The average uplink throughput per user is an indicator to measure the data transmission rate at which each UE sends data to the base station in a wireless communication network. The average uplink throughput per user is the average uplink service throughput per single user in a 5G network.

[0057] The above is an introduction to the technical terms involved in this application, which will not be elaborated further below.

[0058] In order to meet the growing data transmission demands and service quality requirements of users, when the network resources provided by the operator in a cell are insufficient to meet the user needs, the operator will perform network expansion to ensure that the network can operate stably and efficiently.

[0059] Common network expansion methods usually make decisions based on the average network-level metrics during peak hours. For example, the cell can be expanded when the utilization rate of downlink dangerous resources during peak hours in the cell is greater than 50%, the average number of RRC-connected users is greater than 200, and the downlink air interface service traffic is greater than 80 GB.

[0060] However, in scenarios such as high-speed railways and subways, due to the short time that a train passes through a single cell and the concentrated user access, it will bring the problem of instantaneous load increase to the cell. Figure 1 Schematic diagram of the number of users and PRB utilization rate in the cell during train passing. From Figure 1It can be seen that the instantaneous number of users and the instantaneous PRB utilization rate of the cell are relatively high at the moment when the train passes by, but the instantaneous number of users and the instantaneous PRB utilization rate at other times are relatively low, resulting in a relatively low level of the average number of users and the PRB utilization rate of the cell at the hourly level. That is to say, the commonly used network expansion evaluation indicators cannot accurately capture the instantaneous high-load situation of the cell, and thus cannot accurately determine whether the cell needs to be expanded.

[0061] In view of the above technical problems, the present application provides a cell expansion method, the idea of which is as follows: when it is determined that the target cell is in a high-load state based on the PRB utilization rate interval distribution index, the target cell is expanded. Since the PRB utilization rate interval distribution index can reflect the distribution of the PRB utilization rate of the target cell in a short time period within the statistical period, using the PRB utilization rate interval distribution index as an evaluation index to evaluate whether the target cell is in a high-load state can capture the instantaneous high-load situation of the target cell, thereby improving the accuracy of judging whether the target cell needs to be expanded. Further, when the target cell is in a high-load state, timely cell expansion can ensure that the cell maintains stable performance during the network demand peak, thereby improving the user experience. Avoid problems such as a decline in call quality and a slowdown in data transmission speed caused by network congestion, thereby improving the network performance of the cell.

[0062] The technical solution provided by the embodiments of the present application can be applied to various mobile communication networks. For example, a new radio (NR) mobile communication network using 5G, a time division duplex long term evolution (TD-LTE) mobile communication network, a frequency division duplex long term evolution (FDD-LTE) mobile communication network, a future mobile communication network, or a multi-communication fusion system, etc. The embodiments of the present application do not make any limitations thereto.

[0063] It should be noted that since the cell link includes an uplink and a downlink, and the uplink and the downlink are respectively used to carry different types of data transmissions. Therefore, when determining whether the target cell is in a high-load state, it is necessary to judge the uplink and the downlink separately, that is, the PRB utilization rate interval distribution index can be the uplink PRB utilization rate interval distribution index or the downlink PRB utilization rate interval distribution index.

[0064] For ease of description, the embodiments of the present application will be described by taking the downlink as an example. That is, the PRB utilization interval distribution index in the following embodiments of the present application is the downlink PRB utilization interval distribution index, and the PRB utilization is the downlink PRB utilization. It should be understood that in practical applications, the PRB utilization interval distribution index can also be the uplink PRB utilization interval distribution index, and the embodiments of the present application do not limit this.

[0065] The embodiments provided by the present application will be specifically introduced below with reference to the accompanying drawings of the specification.

[0066] The cell expansion method provided by the present application can be applied to an application environment as Figure 2 shown. As Figure 2 shown, the application environment includes: a base station 110 and an expansion device 120.

[0067] Among them, the base station 110 is used to provide a service coverage area, that is, the target cell. The UE entering the target cell can communicate with the base station 110 through a wireless signal, so as to receive the wireless access service provided by the base station 110. The expansion device 120 is used to obtain the PRB utilization interval distribution index of the target cell within a statistical period, and expand the target cell when it is determined that the target cell is in a high-load state based on the PRB utilization interval distribution index.

[0068] In some embodiments, the base station 110 may be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various network-side devices such as various macro base stations, micro base stations, home base stations, wireless remote radio heads, reconfigurable intelligent surfaces (RIS), routers, and wireless fidelity (WIFI) devices.

[0069] It should be noted that the cell expansion method provided by the present application can solve the problem that in the high-speed rail / subway scenario, the instantaneous load of the cell increases, resulting in an inaccurate determination of whether the cell needs to be expanded. Therefore, the base station 110 may be a high-speed rail dedicated network base station / subway dedicated network base station for providing wireless access services to high-speed rail / subway users.

[0070] In some embodiments, since the capacity expansion device 120 needs to obtain the PRB utilization interval distribution index of the target cell within a statistical period, the capacity expansion device 120 needs to be communicatively connected to the base station 110 or the management system of the base station 110.

[0071] Exemplarily, the capacity expansion device 120 can be an independent device, can be integrated in the base station 110 or a core network device included in the core network, or can also be integrated in the management system of the base station 110.

[0072] It can be understood that when the capacity expansion device 120 is an independent device, the capacity expansion device 120 can be communicatively connected to the management system of the base station 110 to obtain the PRB utilization interval distribution index of the target cell within a statistical period. Among them, the management system of the base station 110 can be an operations maintenance center (OMC), a network management system (NMS), an element management system (EMS), an operations support system (OSS), a network functions virtualization (NFV) platform, etc.

[0073] It should be noted that the system architecture described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art know that with the evolution of the system architecture, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0074] See Figure 3 , which is a schematic flow chart of a cell capacity expansion method provided by an embodiment of the present application. As Figure 3 shown, the cell capacity expansion method provided by the present application can be implemented by the above-mentioned capacity expansion device, and specifically includes the following steps S201 to S202.

[0075] S201. Obtain the PRB utilization interval distribution index of the target cell within a statistical period.

[0076] Among them, the PRB utilization interval distribution index is used to indicate the distribution quantity and / or distribution ratio of the PRB resource utilization rate of each sampling period within multiple predefined intervals in multiple sampling periods of the target cell within a statistical period.

[0077] The embodiments of the present application do not specifically limit the sampling period. The sampling period can be a predefined fixed value or a value dynamically adjusted according to the system state, signal characteristics, or user requirements. The specific value of the sampling period can be configured according to the actual application scenario. Exemplarily, the sampling period can be 1 millisecond, 10 milliseconds, 1 second, 2 seconds, 1 minute, etc.

[0078] The PRB resource utilization rate of the target cell in each sampling period is the quotient of the sum of the number of PRBs used in each time slot accumulated within the sampling period and the sum of the number of available PRBs in each time slot accumulated.

[0079] The embodiments of the present application do not limit the multiple predefined intervals of the PRB utilization rate in the PRB utilization rate interval distribution index, and can be configured according to requirements during actual application. Exemplarily, the multiple predefined intervals of the PRB utilization rate can be represented as Index0 - Index9, and the definitions of Index0 - Index9 are as follows: Index0: [0, 10%), Index1: [10%, 20%), Index2: [20%, 30%), Index3: [30%, 40%), Index4: [40%, 50%), Index5: [50%, 60%), Index6: [60%, 70%), Index7: [70%, 80%), Index8: [80%, 90%), Index9: [90%, 100%].

[0080] As a feasible implementation, the capacity expansion device can obtain the PRB utilization rate interval distribution index from the base station of the target cell or the management system of the base station of the target cell. Exemplarily, the base station of the target cell or the management system of the base station of the target cell can collect the PRB resource utilization rate of the target cell in each sampling period within the statistical period, determine the PRB utilization rate interval distribution index based on the PRB resource utilization rate of the target cell in each sampling period within the statistical period, and send the PRB utilization rate interval distribution index to the capacity expansion device.

[0081] It can be understood that since the link of a cell includes an uplink and a downlink, the uplink and the downlink are respectively used to carry different types of data transmissions. Therefore, the PRB utilization interval distribution metric includes at least one of the uplink PRB utilization interval distribution metric and the downlink PRB utilization interval distribution metric. The uplink PRB utilization interval distribution metric is used to indicate the distribution quantity and / or distribution ratio of the uplink PRB resource utilization rate of each sampling period within multiple predefined intervals during multiple sampling periods within a statistical period for the target cell. The downlink PRB utilization interval distribution metric is used to indicate the distribution quantity and / or distribution ratio of the downlink PRB resource utilization rate of each sampling period within multiple predefined intervals during multiple sampling periods within a statistical period for the target cell.

[0082] S202. When it is determined that the target cell is in a high-load state based on the PRB utilization interval distribution metric, expand the target cell.

[0083] It should be noted that the PRB utilization interval distribution metric can reflect the load condition of the network of the target cell within a statistical period. In the case where the target cell is a high-speed rail / subway dedicated network cell, based on the PRB utilization interval distribution metric, the instantaneous high-load condition occurring in the target cell can be accurately observed, so as to determine whether the target cell is in a high-load state within the statistical period. If the target cell is in a high-load state in multiple statistical periods within a certain time period, it indicates that there is a problem that the network performance of the target cell cannot meet the user's requirements, and it is necessary to expand the target cell to ensure the service quality of the target cell.

[0084] As a feasible implementation method, expanding the target cell may include at least one of the following: upgrading the hardware of the target cell; optimizing the software of the target cell; expanding the spectrum resources of the target cell; adjusting the network architecture of the target cell.

[0085] The cell expansion method provided in this application can expand the target cell when it is determined that the target cell is in a high-load state based on the PRB utilization interval distribution metric. Since the PRB utilization interval distribution metric can reflect the distribution of the PRB utilization rate of the target cell within a short time period within a statistical period, using the PRB utilization interval distribution metric as an evaluation metric to evaluate whether the target cell is in a high-load state can capture the instantaneous high-load condition occurring in the target cell, thereby improving the accuracy of judging whether the target cell needs to be expanded. Further, when the target cell is in a high-load state, timely expanding the cell can ensure that the cell maintains stable performance during the network demand peak, thereby improving the user experience. Avoid problems such as a decrease in call quality and a slowdown in data transmission speed caused by network congestion, thereby improving the network performance of the cell.

[0086] In some embodiments, it is possible to determine whether a target cell is in a high-load state based on the distribution ratio of the PRB resource utilization rate in the PRB utilization interval distribution metric.

[0087] As a feasible implementation method, the situation of determining that the target cell is in a high-load state based on the PRB utilization interval distribution metric can be implemented as steps A1 - A2.

[0088] A1. Based on the PRB utilization interval distribution metric, determine the first distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the first preset utilization threshold in the PRB resource utilization rate of each sampling period.

[0089] It should be noted that since the PRB utilization interval distribution metric indicates the distribution ratio of the PRB resource utilization rate of each sampling period within multiple predefined intervals, the value of the first preset utilization threshold needs to coincide with the edge of the predefined interval, so that the expansion device can determine the first distribution ratio. Exemplarily, in the case where the multiple predefined intervals of the PRB utilization rate are Index0 - Index9, and the definitions of Index0 - Index9 are Index0: [0, 10%), Index1: [10%, 20%), Index2: [20%, 30%), Index3: [30%, 40%), Index4: [40%, 50%), Index5: [50%, 60%), Index6: [60%, 70%), Index7: [70%, 80%), Index8: [80%, 90%), Index9: [90%, 100%], the first preset utilization threshold can be 60%, 70%, etc.

[0090] A2. In the case where the first distribution ratio is greater than or equal to the second preset ratio threshold, determine that the target cell is in a high-load state within the statistical period.

[0091] It can be seen that the first distribution ratio being greater than or equal to the second preset ratio threshold indicates that the resource utilization rate of the target cell in multiple sampling periods within the statistical period is relatively high, that is, the target cell has experienced instantaneous high-load situations multiple times within the statistical period. Therefore, it can be determined that the target cell is in a high-load state within the statistical period.

[0092] As a feasible implementation method, in order to more comprehensively evaluate the performance and load situation of the target cell, it is also possible to determine whether the target cell is in a high-load state within the statistical period based on the first distribution ratio and the cell load metric of the target cell.

[0093] Exemplarily, the above step A2 can also be implemented as: when the cell load index meets the first preset condition and the first distribution ratio is greater than or equal to the second preset ratio threshold, it is determined that the target cell is in a high-load state within the statistical period.

[0094] Wherein, the cell load index includes at least one of the following: average number of RRC-connected users, maximum number of RRC-connected users, cell air interface service traffic, and average user throughput rate.

[0095] It should be understood that the average number of RRC-connected users refers to the number of users who are on average in the RRC-connected state with the target cell simultaneously within a statistical period. The higher the average number of RRC-connected users, the higher the load of the cell.

[0096] The maximum number of RRC-connected users refers to the maximum number of concurrent users connected to the RRC of the target cell within a statistical period, which reflects the load state of the cell during peak periods. The higher the maximum number of RRC-connected users, the higher the load of the cell.

[0097] The cell air interface service traffic refers to the total amount of data transmitted from the base station to the user equipment. The increase in the cell air interface service traffic directly reflects the increase in the load of the target cell.

[0098] The average user throughput rate refers to the average amount of data that a user accessing the target cell can receive from the target cell per unit time. Under high load, due to increased resource competition, the available bandwidth for a single user decreases, resulting in a decrease in throughput rate. Therefore, the lower the average user throughput rate, the higher the load of the target cell.

[0099] Based on this, the cell load index meeting the first preset condition includes at least one of the following: the average number of RRC-connected users is greater than the first threshold; the maximum number of RRC-connected users is greater than the second threshold; the cell air interface service traffic is greater than the third threshold; the average user throughput rate is less than the fourth threshold.

[0100] It should be understood that the embodiments of the present application do not make specific limitations on the first and second thresholds, etc. The specific values of the first and second thresholds can be configured according to the actual application scenario. For example, the first threshold can be a predefined fixed value or a value dynamically adjusted according to the status of the target cell.

[0101] It can be understood that when the target cell is a high-speed rail / subway dedicated network cell, the higher the frequency of train operations of the target cell within the statistical period, the more sampling periods of instantaneous high-load situations will occur. Therefore, when determining whether the target cell is in a high-load state within the statistical period based on the above steps A1 - A2, it is also necessary to adjust the second preset ratio threshold based on the frequency of train operations of the target cell.

[0102] In some embodiments, since the traffic frequency of the target cell may vary and is not fixed, in order to more accurately determine the load status of the target cell, it is possible to collect the PRB utilization interval distribution index when the target cell is in the working state, that is, the PRB utilization interval distribution index at the moment of traffic in the target cell, and determine whether the target cell is in a high-load state through the PRB utilization interval distribution index when the target cell is in the working state, so as to reduce the influence brought by the difference in different traffic frequencies.

[0103] Specifically, as a feasible implementation method, the situation of determining that the target cell is in a high-load state based on the PRB utilization interval distribution index can be implemented as the following steps B1 - B2.

[0104] B1. Based on the distribution ratio of the PRB resource utilization rate in each sampling period within each predefined interval in the PRB utilization interval distribution index, and the service utilization ratio of the target cell within the statistical period, determine the PRB utilization interval equivalent distribution index of the target cell.

[0105] Among them, the service utilization ratio is used to represent the ratio corresponding to the working state of the target cell within the statistical period.

[0106] As a feasible implementation method, since the target cell is in a low-load state when there is no traffic, the sampling periods corresponding to the PRB resource utilization rates higher than a certain utilization threshold in the PRB resource utilization rates of each sampling period of the target cell within the statistical period can be regarded as the sampling periods when the target cell is in the working state within the statistical period. Therefore, the service utilization ratio in the above step B1 is: the ratio of the PRB resource utilization rates greater than or equal to the second preset utilization threshold in the PRB resource utilization rates of each sampling period of the target cell within the statistical period to the PRB resource utilization rates of each sampling period.

[0107] It should be noted that since the PRB utilization interval distribution index indicates the distribution ratio of the PRB resource utilization rate in each sampling period within multiple predefined intervals, the value of the second preset utilization threshold needs to coincide with the edge of the predefined interval, so that the expansion device can determine the PRB utilization interval equivalent distribution index of the target cell.

[0108] As another feasible implementation method, since there is service scheduling when the target cell is in the working state, the sampling periods with service scheduling of the target cell within the statistical period can be regarded as the sampling periods when the target cell is in the working state within the statistical period. Therefore, the service utilization ratio in the above step B1 is: the ratio of the total scheduling duration of the target cell within the statistical period to the period duration of the statistical period.

[0109] Exemplarily, the total scheduling duration of the target cell within the statistical period may be the total service scheduling duration of the media access control (MAC) layer of the target cell within the statistical period, and the service utilization ratio may be the ratio of the total MAC layer service scheduling duration to the statistical period. Among them, the total MAC layer service scheduling duration includes the total uplink / downlink MAC layer service scheduling duration.

[0110] That is to say, when the PRB resource utilization rate of the target cell is greater than or equal to the second preset utilization rate threshold, or when there is service scheduling in the target cell, it can be considered that the target cell is in a working state.

[0111] B2. Determine whether the target cell is in a high-load state within the statistical period based on the equivalent distribution index of the PRB utilization rate interval.

[0112] It can be understood that the equivalent distribution index of the PRB utilization rate interval can indicate the equivalent distribution ratio of the PRB resource utilization rate of each sampling period of the target cell within multiple predefined intervals. Therefore, it is possible to determine the load state of the target cell in multiple sampling periods within the statistical period based on the equivalent distribution index of the PRB utilization rate interval, and further determine whether the target cell is in a high-load state within the statistical period.

[0113] As a feasible implementation method, the above step B2 can be implemented as the following steps C1 - C2.

[0114] C1. Based on the equivalent distribution index of the PRB utilization rate interval, determine the second distribution ratio corresponding to the PRB resource utilization rate that is greater than or equal to the third preset utilization rate threshold among the PRB resource utilization rates of each sampling period.

[0115] It should be noted that since the equivalent distribution index of the PRB utilization rate interval indicates the equivalent distribution ratio of the PRB resource utilization rate of each sampling period within multiple predefined intervals, therefore, the value of the third preset utilization rate threshold needs to coincide with the edge of the predefined interval to facilitate the expansion device to determine the second distribution ratio.

[0116] C2. When the second distribution ratio is greater than or equal to the third preset ratio threshold, determine that the target cell is in a high-load state within the statistical period.

[0117] It can be seen that the second distribution ratio being greater than or equal to the third preset ratio threshold indicates that the target cell frequently experiences instantaneous high loads when it is in a working state. Therefore, it can be determined that the target cell is in a high-load state within the statistical period.

[0118] As a feasible implementation, in order to more comprehensively evaluate the performance and load conditions of the target cell, it is also possible to determine whether the target cell is in a high-load state during the statistical period based on the second distribution ratio and the cell load indicator of the target cell.

[0119] Exemplarily, the above step C2 can also be implemented as: when the cell load indicator meets the second preset condition and the second distribution ratio is greater than or equal to the third preset ratio threshold, it is determined that the target cell is in a high-load state during the statistical period.

[0120] Among them, the cell load indicator meeting the second preset condition includes at least one of the following: the average number of RRC-connected users is greater than the fifth threshold; the maximum average number of RRC-connected users is greater than the sixth threshold; the cell air interface service traffic is greater than the seventh threshold; the average user throughput rate is less than the eighth threshold.

[0121] It should be understood that the embodiments of the present application do not make specific limitations on the fifth, sixth thresholds, etc. The specific values of the fifth and sixth thresholds can be configured according to the actual application scenario. For example, the fifth threshold can be a predefined fixed value or a value dynamically adjusted according to the status of the target cell.

[0122] As a feasible implementation, as Figure 4 shown, the above step S202 can be implemented as the following steps S2021 - S2022.

[0123] S2021. Based on the PRB utilization rate interval distribution indicator, determine whether the target cell is in a high-load state during the statistical period.

[0124] It can be understood that the PRB utilization rate interval distribution indicator can indicate the distribution quantity and / or distribution ratio of the PRB resource utilization rate of each sampling period of the target cell during the statistical period in multiple predefined intervals. Therefore, it is possible to determine the load status of the target cell in multiple sampling periods of the statistical period based on the PRB utilization rate interval distribution indicator, and further determine whether the target cell is in a high-load state during the statistical period.

[0125] S2022. When the ratio of the high-load statistical period of the target cell to the capacity expansion evaluation period is greater than the first preset ratio threshold, perform capacity expansion on the target cell.

[0126] Among them, the high-load statistical period is the statistical period in which the target cell is in a high-load state during the capacity expansion evaluation period.

[0127] It can be understood that the ratio of the high-load statistical period to the capacity expansion evaluation period of the target cell is greater than the first preset ratio threshold, indicating that there is a persistent problem of insufficient physical resources in the target cell during the capacity expansion evaluation period, that is, the existing base stations and spectrum resources of the target cell cannot meet the current high-load demand. Therefore, it is necessary to expand the capacity of the target cell.

[0128] The following introduces the cell capacity expansion method of the embodiment of the present application with a specific embodiment. In this embodiment, there are three target cells, namely cell A, cell B, and cell C.

[0129] It is necessary to expand the capacity of the target cell when the ratio of the high-load statistical period to the capacity expansion evaluation period of the target cell is greater than the first preset ratio threshold. Among them, the first preset ratio threshold is 10%, the statistical period is 1 hour, and the capacity expansion evaluation period includes the same time period every day of a week. For example, the capacity expansion evaluation period can be from 9:00 to 10:00 every morning of a week. The PRB utilization rate interval distribution index and cell load index of the target cell within the statistical period are shown in Table 1.

[0130] Table 1

[0131]

[0132] Exemplarily, in the process of determining whether the target cell is in a high-load state within the statistical period based on steps A1 - A2, it is assumed that the first preset utilization threshold is 70%, the second preset ratio threshold is 50%, and the first preset condition is that the average number of RRC connected users is greater than or equal to 100.

[0133] Based on Table 1, it can be known that among the multiple PRB utilization rates of cell A within the statistical period, the proportion of PRB utilization rates greater than or equal to 70% is 45%; among the multiple PRB utilization rates of cell B within the statistical period, the proportion of PRB utilization rates greater than or equal to 70% is 35%; among the multiple PRB utilization rates of cell C within the statistical period, the proportion of PRB utilization rates greater than or equal to 70% is 60%. Then cell C is in a high-load state within the statistical period. That is, cell C has a high-load statistical period in a week. Since the ratio of the high-load statistical period of cell C to the capacity expansion evaluation period is greater than 10%, it is necessary to expand the capacity of cell C.

[0134] In the process of determining whether the target cell is in a high-load state within the statistical period based on steps B1 - B2, it is assumed that the third preset utilization threshold is 70%, the third preset ratio threshold is 50%, and the second preset condition is that the average number of RRC connected users is greater than or equal to 100.

[0135] If the service utilization ratio is: the ratio of the PRB resource utilization rate greater than or equal to the second preset utilization threshold in the PRB resource utilization rate of each sampling period within the statistical period of the target cell to the PRB resource utilization rate of each sampling period, and the second preset utilization threshold is 20%. Based on Table 1, it can be known that among the multiple PRB utilization rates of Cell A within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 56.25%; among the multiple PRB utilization rates of Cell B within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 43.75%; among the multiple PRB utilization rates of Cell C within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 75%. Then Cell A and Cell C are in a high-load state within the statistical period. That is, Cell A and Cell C have a high-load statistical period in a week. Since the ratio of the high-load statistical periods of Cell A and Cell C to the capacity expansion evaluation period is greater than 10%, it is necessary to expand the capacity of Cell A and Cell C.

[0136] If the service utilization ratio is: the ratio of the total scheduling duration of the target cell within the statistical period to the cycle duration of the statistical period. Based on Table 1, it can be known that the service utilization ratio of Cell A is 50%. Among the multiple PRB utilization rates of Cell A within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 90%; the service utilization ratio of Cell B is 60%. Among the multiple PRB utilization rates of Cell B within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 58.33%; the service utilization ratio of Cell C is 83.33%. Among the multiple PRB utilization rates of Cell C within the statistical period, the equivalent proportion of the PRB utilization rate greater than or equal to 70% is 72%. Then Cell A, Cell B, and Cell C are all in a high-load state within the statistical period. That is, Cell A, Cell B, and Cell C have a high-load statistical period in a week. Since the ratio of the high-load statistical periods of Cell A, Cell B, and Cell C to the capacity expansion evaluation period is greater than 10%, it is necessary to expand the capacity of Cell A, Cell B, and Cell C.

[0137] It can be seen that the above mainly introduces the solution provided by the embodiments of the present application from the perspective of methods. To implement the above functions, the embodiments of the present application provide the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, combining the modules and algorithm steps of each example described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0138] In the embodiments of the present application, the cell expansion device can be divided into functional modules according to the above method examples. For example, each functional module can be corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. Optionally, the division of modules in the embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0139] In some embodiments, the present application also provides a cell expansion device. The cell expansion device can include one or more functional modules for implementing the cell expansion method in the above method embodiments.

[0140] For example, Figure 5 is a schematic diagram of the composition of a cell expansion device provided by an embodiment of the present application. As Figure 5 shown, the cell expansion device 300 includes an acquisition module 301 and a processing module 302.

[0141] The acquisition module 301 is used to acquire the physical resource block (PRB) utilization rate interval distribution index of the target cell within a statistical period; the PRB utilization rate interval distribution index is used to indicate the distribution quantity and / or distribution ratio of the PRB resource utilization rate of each sampling period within a plurality of predefined intervals in a plurality of sampling periods of the target cell within the statistical period.

[0142] The processing module 302 is used to expand the target cell when it is determined that the target cell is in a high-load state based on the PRB utilization rate interval distribution index.

[0143] In a possible implementation manner, the processing module 302 is specifically used to determine, based on the PRB utilization rate interval distribution index, the first distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the first preset utilization rate threshold in the PRB resource utilization rate of each sampling period; when the first distribution ratio is greater than or equal to the second preset ratio threshold, it is determined that the target cell is in a high-load state within the statistical period.

[0144] In a possible implementation manner, the processing module 302 is specifically used to determine that the target cell is in a high-load state within the statistical period when the cell load index meets the first preset condition and the first distribution ratio is greater than or equal to the second preset ratio threshold; wherein, the cell load index meeting the first preset condition includes at least one of the following: the average number of RRC-connected users is greater than the first threshold; the maximum average number of RRC-connected users is greater than the second threshold; the cell air interface service traffic is greater than the third threshold; the average user throughput rate is less than the fourth threshold.

[0145] A possible implementation manner, the processing module 302 is specifically configured to determine the equivalent distribution index of the PRB utilization rate interval of the target cell based on the distribution ratio of the PRB resource utilization rate in each sampling period within each predefined interval in the PRB utilization rate interval distribution index and the service utilization ratio of the target cell within the statistical period; the service utilization ratio is used to represent the ratio corresponding to the working state of the target cell within the statistical period; and determine whether the target cell is in a high-load state within the statistical period based on the equivalent distribution index of the PRB utilization rate interval.

[0146] A possible implementation manner, the service utilization ratio is: among the PRB resource utilization rates in each sampling period of the target cell within the statistical period, the ratio of the PRB resource utilization rate greater than or equal to the second preset utilization rate threshold to the PRB resource utilization rate in each sampling period.

[0147] A possible implementation manner, the service utilization ratio is: the ratio of the total scheduling duration of the target cell within the statistical period to the period duration of the statistical period.

[0148] A possible implementation manner, the processing module 302 is specifically configured to determine the second distribution ratio corresponding to the PRB resource utilization rate greater than or equal to the third preset utilization rate threshold among the PRB resource utilization rates in each sampling period based on the equivalent distribution index of the PRB utilization rate interval; and determine that the target cell is in a high-load state within the statistical period when the second distribution ratio is greater than or equal to the third preset ratio threshold.

[0149] A possible implementation manner, the processing module 302 is specifically configured to determine that the target cell is in a high-load state within the statistical period when the cell load index meets the second preset condition and the second distribution ratio is greater than or equal to the third preset ratio threshold; wherein the cell load index includes at least one of the following: The cell load index meeting the second preset condition includes at least one of the following: the average number of RRC connected users is greater than the fifth threshold; the maximum number of RRC connected users is greater than the sixth threshold; the cell radio interface traffic is greater than the seventh threshold; the average user throughput is less than the eighth threshold.

[0150] A possible implementation manner, the processing module 302 is specifically configured to determine whether the target cell is in a high-load state within the statistical period based on the PRB utilization rate interval distribution index; and expand the target cell when the ratio of the high-load statistical period of the target cell to the capacity expansion evaluation period is greater than the first preset ratio threshold; the high-load statistical period is the statistical period in which the target cell is in a high-load state within the capacity expansion evaluation period.

[0151] In the case where the functions of the above integrated modules are implemented in the form of hardware, an embodiment of the present invention provides a possible structural schematic diagram of the electronic device involved in the above embodiment. As Figure 6 shown, the electronic device 400 includes: a processor 402, a communication interface 403, and a bus 404. Optionally, the electronic device 400 may further include a memory 401.

[0152] The processor 402 may be a device that implements or executes various exemplary logical blocks, modules, and circuits described in connection with the disclosure of the present application. The processor 402 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of the present application. The processor 402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0153] The communication interface 403 is used to connect to other devices through a communication network. The communication network may be an Ethernet, a radio access network, a wireless local area network (WLAN), etc.

[0154] The memory 401 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium, or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0155] As a possible implementation, the memory 401 may exist independently of the processor 402. The memory 401 may be connected to the processor 402 through the bus 404 for storing instructions or program code. When the processor 402 calls and executes the instructions or program code stored in the memory 401, the cell expansion method provided by the embodiment of the present invention can be implemented.

[0156] In another possible implementation, the memory 401 may also be integrated with the processor 402.

[0157] The bus 404 can be an extended industry standard architecture (EISA) bus or the like. The bus 404 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 6 only a thick line is used to represent it in Figure 6 , but it does not mean that there is only one bus or one type of bus.

[0158] Through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the service call device is divided into different functional modules to complete all or part of the functions described above.

[0159] The embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by computer instructions instructing relevant hardware. The program can be stored in the above computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be the memory in any of the foregoing embodiments. The above computer-readable storage medium can also be an external storage device of the above service call device, such as a plug-in hard disk equipped on the above service call device, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the above computer-readable storage medium can also include both the internal storage unit of the above service call device and the external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above service call device. The above computer-readable storage medium can also be used to temporarily store the data that has been output or will be output.

[0160] The embodiment of the present application also provides a computer program product. The computer product includes a computer program. When the computer program product runs on a computer, the computer is caused to execute any one of the cell expansion methods provided in the above embodiments.

[0161] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cell expansion method, characterized in that: The method comprises: Obtaining a physical resource block (PRB) utilization interval distribution index of a target cell within a statistical period; the PRB utilization interval distribution index is used to indicate the distribution quantity and / or distribution ratio of the PRB resource utilization of the target cell in each sampling period within multiple predefined intervals in multiple sampling periods within the statistical period; When it is determined based on the PRB utilization interval distribution indicator that the target cell is in a high load state, the target cell is expanded.

2. The method according to claim 1, characterized in that The method further comprises: Based on the PRB utilization interval distribution indicator, determine a first distribution ratio corresponding to a PRB resource utilization greater than or equal to a first preset utilization threshold value in the PRB resource utilization of each sampling period; When the first distribution ratio is greater than or equal to a second preset ratio threshold, it is determined that the target cell is in a high load state during the statistical period.

3. The method according to claim 2, characterized in that The determining that the target cell is in a high load state during the statistical period when the first distribution ratio is greater than or equal to a second preset ratio threshold comprises: When the cell load indicator satisfies a first preset condition and the first distribution ratio is greater than or equal to a second preset ratio threshold, determining that the target cell is in a high load state during the statistical period; The cell load indicator satisfies a first preset condition, including at least one of the following: The average number of connected users of the radio resource control RRC is greater than a first threshold; The average maximum number of RRC connected users is greater than the second threshold; The air interface traffic volume of the cell is greater than the third threshold; The average user throughput rate is less than a fourth threshold.

4. The method according to claim 1, characterized in that: The method further comprises: Based on the distribution ratio of the PRB resource utilization rate of each sampling period in the PRB utilization rate interval distribution index in each of the predefined intervals, and the service utilization ratio of the target cell in the statistical period, determining the PRB utilization rate interval equivalent distribution index of the target cell; the service utilization ratio is used to indicate the proportion corresponding to the target cell being in a working state in the statistical period; Based on the PRB utilization interval equivalent distribution indicator, it is determined whether the target cell is in the high load state within the statistical period.

5. The method according to claim 4, characterized in that The service utilization ratio is: the ratio of the PRB resource utilization of the target cell in each sampling period within the statistical period that is greater than or equal to the second preset utilization threshold to the PRB resource utilization in each sampling period.

6. The method according to claim 4, characterized in that The service utilization ratio is: the ratio of the total scheduling duration of the target cell in the statistical period to the period duration of the statistical period.

7. The method according to claim 4, characterized in that The determining, based on the PRB utilization interval equivalent distribution indicator, whether the target cell is in the high load state within the statistical period includes: Based on the PRB utilization interval equivalent distribution index, determine a second distribution ratio corresponding to a PRB resource utilization greater than or equal to a third preset utilization threshold value in the PRB resource utilization of each sampling period; When the second distribution ratio is greater than or equal to a third preset ratio threshold, it is determined that the target cell is in a high load state during the statistical period.

8. The method according to claim 7, characterized in that The determining that the target cell is in a high load state during the statistical period when the second distribution ratio is greater than or equal to a third preset ratio threshold comprises: When the cell load indicator satisfies a second preset condition and the second distribution ratio is greater than or equal to a third preset ratio threshold, determining that the target cell is in a high load state during the statistical period; The cell load indicator satisfies a second preset condition, including at least one of the following: The average number of RRC connected users is greater than the fifth threshold; The average maximum number of RRC connected users is greater than the sixth threshold; The air interface traffic volume of the cell is greater than the seventh threshold; The average user throughput rate is less than an eighth threshold.

9. The method according to claim 1, characterized in that: When it is determined based on the PRB utilization interval distribution indicator that the target cell is in a high load state, expanding the capacity of the target cell includes: Determining whether the target cell is in a high load state during the statistical period based on the PRB utilization interval distribution indicator; When the ratio of the high load statistical period to the capacity expansion assessment period of the target cell is greater than a first preset ratio threshold, the target cell is expanded; the high load statistical period is a statistical period in which the target cell is in a high load state during the capacity expansion assessment period.

10. An electronic device, characterized in that: It comprises a processor and a memory, the processor is coupled to the memory; the memory is used to store computer instructions, and the computer instructions are loaded and executed by the processor so that the computer device implements the cell expansion method according to any one of claims 1 to 9.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes computer-executable instructions. When the computer-executable instructions are executed on a computer, the computer is enabled to execute the cell expansion method according to any one of claims 1 to 9.

12. A computer program product, characterized in that The computer program product includes a computer program, and when the computer program is run on an electronic device, the electronic device executes the cell expansion method according to any one of claims 1 to 9.

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