CN114401486B - Cell turn-off method and device - Google Patents

Cell turn-off method and device Download PDF

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Publication number
CN114401486B
CN114401486B CN202111611179.0A CN202111611179A CN114401486B CN 114401486 B CN114401486 B CN 114401486B CN 202111611179 A CN202111611179 A CN 202111611179A CN 114401486 B CN114401486 B CN 114401486B
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cell
cells
flow
user
data
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CN114401486A (en
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李娜
段嘉炘
屈毅
杨扬
刘松青
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/021Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0203Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A cell turn-off method and device are used for realizing the dual effects of energy conservation, emission reduction and user experience maintenance in the technical field of communication. The method comprises the following steps: and determining a first co-coverage cell with the flow area overlapping rate not smaller than a first preset overlapping rate according to the user flow data and the user position data of each cell, and when the first co-coverage cell corresponds to at least two frequency bands, taking a cell with the total capacity not smaller than at least one frequency band of the bandwidth requirement in the first co-coverage cell as a target cell, and turning off cells of other frequency bands except the target cell. By switching off the cells in the same coverage cell, users in the switched off cells can also continue to provide services by the base stations in the same coverage cell which are not switched off, and therefore the dual effects of saving energy, reducing emission and maintaining the use experience of the users are facilitated.

Description

Cell turn-off method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for cell shutdown.
Background
In recent years, with the continuous construction of base stations, the operating cost of base stations is also increasing. Especially, the power consumption of the 5G base station is 3-4 times of that of the 4G base station due to the influence of factors such as larger bandwidth, more channels, lower device integration level and the like. The existing data show that the electricity charge of the nationwide established 5G base station exceeds 300 hundred million in the next year. Therefore, energy saving for 5G base stations has become a troublesome problem that has to be considered in 5G business.
However, the prior art generally only considers base station traffic data in a single 5G cell, and shuts down base stations in that 5G cell when the base station traffic data is not greater than a set traffic threshold. Obviously, although the cell turn-off mode can save power consumption by turning off the cell, the consideration factor is too single, and the users in the cell are likely to be unable to use the flow well due to the fact that the cell which needs to be turned off cannot be accurately positioned, so that the use experience of the users is not facilitated.
In summary, a method for shutting down a cell is needed to accurately locate a cell that can be shut down on the basis that the user experience is not affected as much as possible, so as to achieve the dual effects of saving energy, reducing emission and maintaining the user experience.
Disclosure of Invention
The application provides a cell turn-off method and a cell turn-off device, which are used for accurately positioning a cell which can be turned off on the basis of not influencing the use experience of a user as much as possible so as to realize the dual effects of energy conservation, emission reduction and maintenance of the user experience.
In a first aspect, the present application provides a cell shutdown method, including: firstly acquiring user flow data and user position data of each cell in a preset area in a preset period, then determining K first co-coverage cells with the flow area overlapping rate not smaller than a first preset overlapping rate according to the user flow data and the user position data of each cell, wherein K is a positive integer larger than or equal to 2, and then turning off cells of other frequency bands except the target cell according to the bandwidth requirement in the K first co-coverage cells if the K first co-coverage cells are determined to correspond to at least two frequency bands.
In the design, through selecting the cells which can be turned off in the same coverage cell, even if the cells are turned off, users in the turned off cells can still continue to provide services by the base stations in the same coverage cell which are not turned off, and therefore, the cell turn-off mode can not only realize energy conservation and emission reduction through the turned-off cells, but also continue to maintain the use experience of the users in the turned-off cells, and the double effects of energy conservation and emission reduction and user experience maintenance can be realized. And by referring to the cells of other frequency bands which are preferentially turned off according to the bandwidth requirements in the same coverage cell, the service of the user in the frequency band is affected as little as possible, the use experience of the user is maintained maximally, the least cell which just meets the bandwidth requirements can be reserved as much as possible, the turn-off cell is turned off maximally, and the maximized energy saving and emission reduction effects are realized.
In one possible design, the predetermined period may be a night period, such as 23:00-5:30. Therefore, by executing the cell turn-off method more pertinently for the night time periods with low user demand, the cell turn-off can be performed under the necessary condition, analysis can not be performed on all time periods, and the computing resource is effectively saved.
In one possible design, the target cell may prefer a low band cell or combination of cells, e.g., a 4G cell (e.g., 800M cell and/or 1.8G cell) and a 5G cell (e.g., 2.1G cell) is turned off. Therefore, the low-frequency cell has higher energy consumption than the medium-high frequency cell, so that the medium-high frequency cell is preferably turned off, and energy conservation and emission reduction can be better performed.
In one possible design, determining K first co-coverage cells with a traffic area overlapping rate reaching a first preset overlapping rate according to user traffic data and user location data of each cell includes: firstly, determining a flow circle center and a flow radius of each cell according to user flow data and user position data of each cell, and determining a flow area corresponding to each cell based on the flow circle center and the flow radius; secondly, selecting a cell with the lowest user flow data in each cell as a reference cell, obtaining alternative adjacent cells with flow areas overlapping with the flow areas of the reference cell from adjacent cells of the reference cell, calculating the overlapping area of the flow areas of each alternative adjacent cell and the flow areas of the reference cell, and taking the ratio of the overlapping area to the area of the flow areas of each alternative adjacent cell as the flow overlapping rate of each alternative adjacent cell and the reference cell; and finally, taking the alternative adjacent cells with the flow overlapping rate not smaller than the first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
In the design, the flow area of the cell is constructed by taking the user flow data and the user position data as the reference, each adjacent cell with the overlapped flow area can be accurately obtained, and the accuracy of obtaining the same coverage cell is improved.
In one possible design, after the cells of the frequency bands except the target cell are turned off, the current resource occupancy rate of the users in the K first co-coverage cells can be obtained, and if the current resource occupancy rate exceeds the preset resource occupancy rate threshold, the cells of the frequency bands except the target cell are re-started. Therefore, by continuing to monitor the resource occupancy rate of the user after the cell is turned off, the turned-off cell can be recovered in time when the demand level of the user on the resource suddenly rises and only the remaining cell cannot provide the high resource, and the resource use of the user is not influenced as much as possible while the cell turn-off method is executed.
In one possible design, after the cells of other frequency bands except the target cell are turned off, the current energy efficiency of the K first co-coverage cells can be obtained, and if it is determined that the current energy efficiency still does not reach the preset energy saving effect and the target cell corresponds to the same frequency band, the target cell with the lowest user flow data in the target cell is turned off. Therefore, through reserving the cells of the same frequency band preferentially in the process of saving energy efficiency, the cells of the same frequency band are turned off only when the preset energy efficiency is not reached after the cells of different frequency bands are turned off, and the optimal energy efficiency effect can be achieved step by step on the basis of ensuring that users of the same frequency band are not affected as much as possible.
In one possible design, if it is determined that the K first co-coverage cells correspond to the same frequency band, the cell with the lowest user traffic data among the K first co-coverage cells is turned off. Therefore, the lowest user flow data in the cell means that the user flow demand in the cell is the lowest, and the influence of the off cell on the use of the user service can be reduced as much as possible by switching off the base station in the cell with the lowest user flow demand but not switching off the base station in the cell with higher user flow.
In one possible design, after the cells with the lowest user traffic data in the K first co-coverage cells are turned off, the current energy efficiency of the K first co-coverage cells can be obtained, if the current energy efficiency still does not reach the preset energy efficiency, the M second co-coverage cells with the traffic area overlapping rate not smaller than the second preset overlapping rate are determined according to the user traffic data and the user position data of each cell, and the cells with the lowest user traffic data in the M second co-coverage cells are turned off. The second preset overlap rate is smaller than the first preset overlap rate, for example, the first preset overlap rate may be selected to be 80%, and the second preset overlap rate may be selected to be 70%. Therefore, the optimal cells are selected from the cells with high coverage areas to be turned off according to the sequence from high coverage areas to low coverage areas, and the suboptimal cells are selected from the cells with low coverage areas to be turned off when the energy efficiency still does not reach the preset effect, so that the influence on the turned-off cells is minimized while the energy efficiency is gradually reduced.
In a second aspect, the present application provides a cell shutdown apparatus, comprising: an acquisition unit, configured to acquire user traffic data and user location data of each cell in a preset area in a preset period; a determining unit, configured to determine, according to user traffic data and user location data of each cell, K first co-coverage cells with traffic area overlapping rates not less than a first preset overlapping rate, where K is a positive integer greater than or equal to 2; and the processing unit is used for taking a cell with at least one frequency band with total capacity not smaller than the bandwidth requirement as a target cell according to the bandwidth requirement in the K first co-coverage cells if the K first co-coverage cells correspond to at least two frequency bands, and turning off cells with other frequency bands except the target cell.
In a possible design, the determination unit is specifically configured to: firstly, determining a flow center and a flow radius of each cell according to user flow data and user position data of each cell, determining a flow area corresponding to each cell based on the flow center and the flow radius, selecting a cell with the lowest user flow data in each cell as a reference cell, obtaining alternative adjacent cells with overlapping flow areas of the flow area and the reference cell from adjacent cells of the reference cell, calculating the overlapping area of the flow area of each alternative adjacent cell and the flow area of the reference cell, taking the ratio of the overlapping area to the area of the flow area of each alternative adjacent cell as the flow overlapping rate of each alternative adjacent cell and the reference cell, and taking the alternative adjacent cell with the flow overlapping rate not smaller than the first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
In one possible design, the processing unit may further obtain current resource occupancy rates of the users in the K first co-coverage cells after turning off the cells of the frequency bands other than the target cell, and re-enable the cells of the frequency bands other than the target cell if the current resource occupancy rates exceed a preset resource occupancy rate threshold.
In one possible design, after the processing unit turns off the cells of other frequency bands except the target cell, the processing unit may further obtain current energy efficiency of the K first coverage cells together, and if it is determined that the current energy efficiency still does not reach the preset energy saving effect and the target cell corresponds to the same frequency band, the target cell with the lowest user flow data in the target cell is turned off.
In one possible design, if the processing unit determines that the K first co-coverage cells correspond to the same frequency band, the processing unit turns off a cell with the lowest user traffic data among the K first co-coverage cells.
In one possible design, after turning off the cell with the lowest user traffic data in the K first co-coverage cells, the processing unit may further obtain current energy efficiency of the K first co-coverage cells, and if the current energy efficiency still does not reach the preset energy efficiency, determine, according to the user traffic data and the user location data of each cell, M second co-coverage cells with a traffic area overlapping rate not less than a second preset overlapping rate, and turn off the cell with the lowest user traffic data in the M second co-coverage cells, where the second preset overlapping rate is less than the first preset overlapping rate.
In one possible design, the target cell is preferably a low band cell or combination of cells.
In a third aspect, the present application provides a computing device comprising at least one processor and interface circuitry for providing data or code instructions to the at least one processor, the at least one processor being configured to implement a method as designed in any one of the first aspects above by logic circuitry or executing the code instructions.
In a fourth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program/instruction which, when executed by a processor, implements a method as devised in any of the first aspects above.
In a fifth aspect, a computer program product comprising computer programs/instructions which, when executed by a processor, implement a method as designed in any of the first aspects above.
The beneficial effects of the second aspect to the fifth aspect are specifically referred to the technical effects that can be achieved by the corresponding designs in the first aspect, and the detailed description is not repeated here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 schematically illustrates one possible system architecture provided by an embodiment of the present application;
Fig. 2 is a schematic flow chart illustrating a cell shutdown method according to an embodiment of the present application;
FIG. 3 schematically illustrates a flow area provided by an embodiment of the present application;
Fig. 4 is a schematic structural diagram of a cell shutdown device according to an embodiment of the present disclosure;
Fig. 5 is a schematic structural diagram of another cell shutdown device according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes the embodiments of the present application in detail with reference to the drawings.
Fig. 1 schematically illustrates a possible system architecture provided by an embodiment of the present application, as shown in fig. 1, where the system architecture includes a network manager 101, a cell shutdown device 102, and a plurality of cells located in a preset area, such as a cell a, a cell B, a cell C, a cell D, and a cell E. Wherein, each of the plurality of cells is provided with a base station, which is a basic unit constituting a cellular cell in the mobile communication network and is used for completing communication and management functions between the mobile communication network and mobile communication subscribers. By default, the base station in each cell is in operation, i.e. the user in each cell can communicate with other users through the base station in the cell, or perform other online services, such as playing online games, watching online videos, shopping, etc.
In the embodiment of the present application, the preset area may refer to an area where a cell shutdown scheme needs to be executed, and may be specifically set by a person skilled in the art according to needs, for example, may be a certain province, a city, a county, or a village, or may be some adjacent provinces, certain cities, certain counties, or some villages, or may be a partial area in a certain or some provinces, cities, counties, or villages, which is not specifically limited.
As an example, as shown in fig. 1, when the cell shutdown method is performed, one side of the network manager 101 may be connected to a base station in each cell located in a preset area, and the other side may be connected to the cell shutdown device 102, and the connection manner is not limited to a wired connection or a wireless connection, etc. In this way, the network manager 101 may obtain the user related data in each cell through interaction with the base station in each cell periodically or in real time, and report the user related data in each cell to the cell shutdown device 102, where the cell shutdown device 102 analyzes one or more cells to be shutdown based on the received user related data, and issues the indication information for shutting down the one or more cells to the network manager 101, and then the network manager 101 shuts down the one or more cells in the preset area according to the indication of the cell shutdown device 102.
It should be noted that, in fig. 1, the circular area or the elliptical area where each cell is located is only used to indicate the geographical area occupied by the cell, and the coverage area of the base station set therein is not directly related. In addition, the foregoing is merely an exemplary architecture, and in other examples, other devices, such as a base station controller, a switch, or a modem device, may be included in the system architecture, which is not specifically limited by the embodiments of the present application.
Based on the system architecture illustrated in fig. 1, fig. 2 schematically illustrates a flowchart of a cell shutdown method according to an embodiment of the present disclosure, where the method is applicable to a cell shutdown device, such as the cell shutdown device 102 illustrated in fig. 1. As shown in fig. 2, the method includes:
Step 201, obtaining user traffic data and user position data of each cell in a preset area in a preset period.
By way of example, the preset period may refer to a period of time when the user is not in high demand for flow, such as 23:00-5:30 nighttime, etc. Therefore, by executing the cell turn-off method more pertinently for the night time period with low user demand, the cell turn-off can be performed under the necessary condition, and the analysis of all time periods can be avoided, so that the energy conservation and emission reduction can be realized while the calculation complexity is reduced.
In the embodiment of the application, the cell shutdown device can obtain the user flow data and the user position data of each cell in the preset area in the preset time period from the network management side. The user traffic data may specifically refer to user traffic data, including, but not limited to, data of a user making a call, data of a user answering a call, data of a user receiving and sending a short message, internet surfing data of a user, and the like. The user location data may refer in particular to call detail tracking (CALL DETAIL TRACE, CDT) data of the user, also referred to as measurement report (measurement report, MR) data in some embodiments. In addition, considering that the 4G cell and the 5G cell have higher energy consumption compared with other cells, the cell shutdown device may specifically obtain the user traffic data and the user location data of each 4G cell and each 5G cell in the preset area from the network management side, where the obtaining manner may be that an instruction is actively sent to the network management to obtain, or may be that the network management side actively reports, for example, the network management side reports the user traffic data and the user location data according to a certain period, which is not particularly limited.
Step 202, determining K first same coverage cells with the flow area overlapping rate not smaller than a first preset overlapping rate according to the user flow data and the user position data of each cell, wherein K is a positive integer greater than or equal to 2.
The cell shutdown device may first determine a traffic center and a traffic radius of each cell according to the user traffic data and the user location data of each cell, determine a traffic area corresponding to each cell based on the traffic center and the traffic radius, then select a cell with the lowest user traffic data from the cells as a reference cell, obtain candidate neighboring cells with overlapping traffic areas of the traffic area and the traffic area of the reference cell from the neighboring cells of the reference cell, calculate an overlapping area of the traffic area of each candidate neighboring cell and the traffic area of the reference cell, use a ratio of the overlapping area to an area of the traffic area of each candidate neighboring cell as a traffic overlapping rate of each candidate neighboring cell and the reference cell, and finally use a candidate neighboring cell with a traffic overlapping rate not less than a first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
Further exemplary, the first preset overlap rate may be a rate for indicating that traffic areas of two cells substantially overlap, may be set empirically by a person skilled in the art, or may also be obtained experimentally verified, for example, may be set to preferably 80% or more.
For example, taking the preset area illustrated in fig. 1 as an example, assuming that the traffic area illustrated in fig. 3 is constructed according to the user traffic data and the user location data of each of the cell a, the cell B, the cell C, the cell D and the cell E, and the cell a is the cell with the lowest user traffic data, the overlapping ratio of the traffic area of the cell B and the traffic area of the cell a is 80%, the overlapping ratio of the traffic area of the cell C and the traffic area of the cell a is 90%, the overlapping ratio of the traffic area of the cell D and the traffic area of the cell a is 30%, and the overlapping ratio of the traffic area of the cell E and the traffic area of the cell a is 0, then: when the first preset overlap ratio is 80%, the cell B and the cell C belong to the first co-coverage cells of the cell a, that is, the K first co-coverage cells include the cell a, the cell B and the cell C.
Step 203, determining whether the number of frequency bands corresponding to the K first co-coverage cells is greater than 1, if yes, executing step 204, and if not, executing step 205.
And 204, taking the cells with at least one frequency band with total capacity not smaller than the bandwidth requirement as target cells according to the bandwidth requirements in the K first co-coverage cells, and turning off the cells with other frequency bands except the target cells.
After determining the K first co-coverage cells, the cell shutdown device may determine, according to the user traffic data of each first co-coverage cell, the number of users currently using traffic, the user traffic demand, and physical resource block (physical resource block, PRB) information of the users in each first co-coverage cell, then calculate the total number of users according to the number of users of the K first co-coverage cells, determine the total user traffic demand according to the number of user traffic demands of the K first co-coverage cells, determine the PRB occupancy according to the PRB information of the K first co-coverage cells, and further evaluate the bandwidth demand in the K first co-coverage cells according to the total number of users, the total user traffic demand, and the PRB occupancy. And then, the cell shutdown device can determine the capacity which can be provided by each first co-coverage cell according to the corresponding relation between the cell frequency band of each first co-coverage cell and the preset cell frequency band and the capacity, select all cells or cell combinations with the capacity capable of supporting the bandwidth requirements in the K first co-coverage cells from the K first co-coverage cells, select one cell or cell group from all cells or cell groups to serve as a target cell, and shutdown other cells. The corresponding relation between the preset cell frequency band and the capacity can refer to the existing protocol specifically, for example, in the 3GPP protocol, the scene 20M bandwidth, the rate of 1Mbps of single user rate, and 184 downlink user capacities supported by the cell in the 1t2r MIMO mode.
It should be noted that, the above bandwidth requirement may refer to a wireless bandwidth requirement or a user bandwidth requirement. For ease of understanding, the following description will take wireless bandwidth requirements as an example, with a specific example.
Continuing to refer to fig. 3, assuming that the cell a, the cell B, and the cell C are first co-coverage cells, the cell a is an 800M cell, the cell B is a 1.8G cell, the cell C is a 2.1G cell, the wireless bandwidth corresponding to the 800M cell is 5M, the wireless bandwidth corresponding to the 1.8G cell is 20M, the wireless bandwidth corresponding to the 2.1G cell is 45M, and the total number of users of the 3 first co-coverage cells is 10, then:
In case one, assuming that the 10 users occupy 4M radio bandwidth in total, it is indicated that the radio bandwidth requirement in cell a, cell B and cell C is 4M, and the radio bandwidth 5M corresponding to the 800M cell is sufficient to provide 4M bandwidth, so the 800M cell can be used as the target cell, and the 1.8G cell and the 2.1G cell can be turned off;
In the second case, assuming that the 10 users occupy 21M of radio bandwidth in total, it is indicated that the radio bandwidth requirement in the cell a, the cell B and the cell C is 21M, and the radio bandwidth corresponding to the 800M cell is 25M in addition to the radio bandwidth corresponding to the 5M and 1.8G cell, so that the bandwidth of 21M is enough to be provided, and therefore, the 800M cell and the 1.8G cell can be used as target cells, and the 2.1G cell can be turned off;
In the third case, assuming that the 10 users occupy 25M of wireless bandwidth, it is indicated that the wireless bandwidth requirement in the cell a, the cell B and the cell C is 25M, and although the sum of the wireless bandwidths corresponding to the 800M cell and the wireless bandwidth corresponding to the 1.8G cell is just 25M, if only the 800M cell and the 1.8G cell are reserved, the bandwidth allowance is not existed in the whole system, and in this case, the traffic of one user or one user is increased a little, and the like, so that the whole system is directly overloaded, resulting in poor availability of the system. Based on this, a cell or group of cells with a total radio bandwidth of slightly more than 25M may be selected as the target cell, e.g. a 2.1G cell as the target cell, and the 800M cell and the 1.8G cell may be turned off.
Further exemplary, considering that a 4G cell can have lower power consumption than a 5G cell, when there are various target cells, the target cells may prefer a cell or a combination of cells of a low frequency band. For example, taking the above second case as an example, when the radio bandwidth requirement is 21M, the cell group of the 800M cell and the 1.8G cell is a feasible target cell, and since the radio bandwidth 45M corresponding to the 2.1G cell is also sufficient to provide the 21M bandwidth, the 2.1G cell can also be a feasible target cell, although there are two cell shutdown schemes, namely, the 800M cell and the 1.8G cell are reserved and the 2.1G cell is shut down, or the 2.1G cell is reserved and the 800M cell and the 1.8G cell are shut down, but since the frequency band of the 800M cell and the 1.8G cell is lower than the frequency band of the 2.1G cell, the 800M cell and the 1.8G cell can be regarded as the final determined target cell and the 2.1G cell is shut down. Thus, by reserving 800M cell A and 1.8G cell B belonging to 4G cell and turning off 2.1G cell C belonging to 5G cell, energy consumption can be better saved.
In an alternative embodiment, after the cell shutdown device shuts down the cells of the frequency bands other than the target cell, the cell shutdown device may monitor the resource occupancy rate of the users in the K first co-coverage cells, when the resource occupancy rate at a certain moment is found to exceed the preset resource occupancy rate threshold, it means that the demand level of the users for the resources suddenly increases, but the currently existing cell cannot provide such high resources, at this time, the cell shutdown device may re-enable the cells of the frequency bands other than the target cell, so as to quickly satisfy the current burst traffic demand of the users by timely recovering the shut-down cells.
It should be noted that, the above-mentioned monitoring of the resource occupancy is only an alternative embodiment, and in other embodiments, the cell shutdown device may monitor other network indicators, such as the number of users using the traffic or the total traffic required by the users, which is not limited in particular.
In an optional implementation manner, after the cell shutdown device shuts down cells of other frequency bands except the target cell, the current energy efficiency of the K first co-coverage cells may be obtained, if it is determined that the current energy efficiency still does not reach the preset energy saving effect, whether the remaining target cells which are not shut down correspond to at least two frequency bands is determined again, if yes, the cell is selected from the remaining target cells which are not shut down continuously to shut down, and of course, when the cell is selected to shut down, it is also required to ensure that the total capacity provided by the cells which are not shut down is not less than the bandwidth requirement of the user. Otherwise, if the remaining target cells that are not turned off correspond to the same frequency band, the cell turn-off device may select the target cell with the lowest user traffic from the remaining target cells that are not turned off for turn-off (refer to step 204 below, which is not specifically described herein), so as to preserve the cell with higher user traffic as much as possible.
In the steps 203 and 204, by preferentially reserving the cells in the same frequency band in the process of saving energy efficiency, the cells in the same frequency band are turned off only when the cells in different frequency bands are turned off and the preset energy efficiency is not reached yet, so that the optimal energy efficiency effect can be gradually achieved on the basis of ensuring that the users in the same frequency band are not influenced as much as possible, and the stability of the turn-off of the cells is effectively improved.
In step 205, the cell with the lowest user traffic data among the K first co-coverage cells is turned off.
For example, with continued reference to fig. 3, assuming that the cell a, the cell B, and the cell C are the first same overlay cell, the cell a, the cell B, and the cell C are all 800M cells, and the user traffic data of the cell a, the user traffic data of the cell B, and the user traffic data of the cell C decrease in sequence, the cell shutdown device may shutdown the cell a with the lowest user traffic data among the cell a, the cell B, and the cell C, so as to reduce the influence of the shutdown cell on the user traffic in the cell B with the higher user traffic and the cell C as much as possible.
In an optional implementation manner, after the cell shutdown device shuts down the cell with the lowest user traffic data in the K first co-coverage cells, the cell shutdown device may further obtain current energy efficiency of the K first co-coverage cells, and if the current energy efficiency still does not reach the preset energy efficiency, determine, according to the user traffic data and the user location data of each cell, M second co-coverage cells with the traffic area overlapping rate not less than the second preset overlapping rate again, and further shut down the cell with the lowest user traffic data in the M second co-coverage cells. The second preset overlapping rate is smaller than the first preset overlapping rate. For example, as shown in fig. 3, assuming that the first preset overlap ratio is 85%, the second preset overlap ratio is 75%, the overlap ratio of the traffic areas of the cell B and the cell a is 80%, the overlap ratio of the traffic areas of the cell C and the cell a is 90%, the overlap ratio of the traffic areas of the cell D and the cell a is 30%, and the overlap ratio of the traffic areas of the cell E and the cell a is 0, then:
Since the first preset overlap ratio is 85%, the cell B belongs to the first co-coverage cell of the cell a, and assuming that the cell shutdown device, after turning off the cell B in steps 202 to 205, provides the traffic to the user in the cell B by the cell a, it is found that the energy efficiency ratio achieved by providing the traffic to the user in the cell a and the cell B by the cell a still fails to reach the preset energy efficiency effect, at this time, the cell shutdown device may search the remaining non-turned-off cells based on the second preset overlap ratio of 75%, and find that the cell C belongs to the second co-coverage cell of the cell a, and further provide the traffic to the user in the cell C by the cell a after turning off the cell C in steps 202 to 205.
In step 205, the method includes selecting the optimal cell from the cells with high coverage area to turn off according to the order from high coverage area to low coverage area, and selecting the suboptimal cell from the cells with low coverage area to turn off when the energy efficiency is still not up to the preset effect, so that the influence on the turned-off cell is minimized while the energy efficiency is gradually reduced.
In the embodiment of the application, firstly, user flow data and user position data of each cell in a preset area in a preset period are acquired, then, K first co-coverage cells with the flow area overlapping rate not smaller than a first preset overlapping rate are determined according to the user flow data and the user position data of each cell, K is a positive integer larger than or equal to 2, then, if the K first co-coverage cells are determined to correspond to at least two frequency bands, according to the bandwidth requirements in the K first co-coverage cells, the cell with the total capacity not smaller than at least one frequency band of the bandwidth requirements is taken as a target cell, and the cells of other frequency bands except the target cell are turned off. Therefore, by selecting the cells which can be turned off from the same coverage cells, even if the cells are turned off, users in the turned-off cells can still continue to provide services by the base stations in the same coverage cells which are not turned off, and the cell turning-off mode can not only realize energy conservation and emission reduction through the turned-off cells, but also continue to maintain the use experience of the users in the turned-off cells, so that the double effects of energy conservation and emission reduction and user experience maintenance can be realized. And by referring to the cells of other frequency bands which are preferentially turned off according to the bandwidth requirements in the same coverage cell, the service of the user in the frequency band is affected as little as possible, the use experience of the user is maintained maximally, the least cell which just meets the bandwidth requirements can be reserved as much as possible, the turn-off cell is turned off maximally, and the maximized energy saving and emission reduction effects are realized.
For the above method flow, the embodiment of the present application further provides a cell shutdown device, where the specific content of the device may be implemented by referring to the above method.
Fig. 4 is a schematic structural diagram of a cell shutdown device according to an embodiment of the present disclosure, and as shown in fig. 4, the cell shutdown device 400 includes: the system comprises a data acquisition module 401, a shutdown selection module 402, a pre-evaluation module 403, an auditing module 404, an implementation module 405, an input module 406 and an intelligent improvement module 407, wherein the connection relation of the modules is shown in fig. 4. In practice, the following is used:
The data acquisition module 401 may acquire user traffic data and user location data of each cell in the preset area from the network manager 101, and then send the user traffic data and the user location data of each cell to the shutdown selection module 402;
The turn-off selection module 402 combines the configured first preset overlap rate obtained from the input module 406 with the user traffic data and the user position data of each cell sent by the data acquisition module 401, determines K first co-coverage cells with the traffic area overlap rate not less than the first preset overlap rate from each cell, and sends the K first co-coverage cells to the pre-evaluation module 403, where K is a positive integer greater than or equal to 2;
The pre-evaluation module 403 combines the shutdown evaluation algorithm obtained from the input module 406 to determine whether the number of frequency bands corresponding to the K first co-coverage cells is greater than 1, and when the number of frequency bands is greater than 1, according to the bandwidth requirement in the K first co-coverage cells, takes a cell with a total capacity not less than at least one frequency band of the bandwidth requirement as a target cell, and sends indication information of the cells shutting down other frequency bands except the target cell to the auditing module 404; otherwise, when the number is equal to 1, sending the indication information of the cell with the lowest user flow in the K first co-coverage cells to the auditing module 404;
The auditing module 404 obtains other information, such as complaint information of a user or preconfigured information, from the input module 406, and combines some cells indicated by the information and which cannot be turned off to determine whether the pre-evaluation module 403 indicates that the turned-off cell can be turned off, if so, the turned-off information is sent to the implementation module 405, and if so, the information of turning-off error is sent to the pre-evaluation module 403 to instruct the pre-evaluation module 403 to reselect another cell as the cell to be turned off;
the implementation module 405 sends the cells to be turned off to the network management 101, instructs the network management 101 to turn off the cells, and after the cells are turned off, the network management 101 obtains the effect information after the actual turning off by monitoring the preset area, and sends the effect information to the intelligent improvement module 407, where the effect information includes but is not limited to energy efficiency, user resource utilization rate, and the like;
the intelligent improvement module 407 determines whether to modify the shutdown mode according to the effect information after actual shutdown, if yes, the modified shutdown mode is sent to the shutdown selection module 402, so that the shutdown selection module 402 subsequently determines a better shutdown cell by using the modified shutdown mode, or re-enables the shutdown cell through the pre-evaluation module 403, the auditing module 404, the implementation module 405, and the like.
Fig. 5 is a schematic structural diagram of another cell shutdown device according to an embodiment of the present disclosure, and as shown in fig. 5, the cell shutdown device 500 includes:
an acquiring unit 501, configured to acquire user traffic data and user location data of each cell in a preset area in a preset period;
A determining unit 502, configured to determine, according to user traffic data and user location data of each cell, K first co-coverage cells with traffic area overlapping rates not less than a first preset overlapping rate, where K is a positive integer greater than or equal to 2;
and the processing unit 503 is configured to, if it is determined that the K first co-coverage cells correspond to at least two frequency bands, turn off the cells of other frequency bands except the target cell by using, as the target cell, a cell of at least one frequency band having a total capacity not less than the bandwidth requirement, according to the bandwidth requirement in the K first co-coverage cells.
In a possible design, the determining unit 502 is specifically configured to: according to the user flow data and the user position data of each cell, determining a flow center and a flow radius of each cell, determining a flow area corresponding to each cell based on the flow center and the flow radius, selecting a cell with the lowest user flow data in each cell as a reference cell, obtaining alternative adjacent cells with overlapping flow areas with the flow area of the reference cell from each adjacent cell of the reference cell, calculating the overlapping area of the flow area of each alternative adjacent cell and the flow area of the reference cell, taking the ratio of the overlapping area to the area of the flow area of each alternative adjacent cell as the flow overlapping rate of each alternative adjacent cell and the reference cell, and taking the alternative adjacent cell with the flow overlapping rate not smaller than the first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
In one possible design, the processing unit 503 may further obtain the current resource occupancy rate of the user in the K first co-coverage cells after turning off the cells of the frequency bands other than the target cell, and re-enable the cells of the frequency bands other than the target cell if the current resource occupancy rate exceeds the preset resource occupancy rate threshold.
In one possible design, after turning off the cells of the frequency bands other than the target cell, the processing unit 503 may further obtain the current energy efficiency of the K first coverage cells together, and if it is determined that the current energy efficiency still does not reach the preset energy saving effect and the target cell corresponds to the same frequency band, turn off the target cell with the lowest user traffic data in the target cell.
In one possible design, the processing unit 503 turns off the cell with the lowest user traffic data among the K first co-coverage cells if it is determined that the K first co-coverage cells correspond to the same frequency band.
In one possible design, after turning off the cells of the frequency bands other than the target cell, the processing unit 503 may further obtain current energy efficiency of the K first co-coverage cells, and if the current energy efficiency still does not reach the preset energy efficiency, determine, according to the user traffic data and the user location data of each cell, M second co-coverage cells with a traffic area overlapping rate not less than the second preset overlapping rate, and turn off the cell with the lowest user traffic data in the M second co-coverage cells. The second preset overlapping rate is smaller than the first preset overlapping rate.
In one possible design, the target cell may be preferably a low-band cell or combination of cells.
Based on the same inventive concept, an embodiment of the present application also provides an electronic device, including at least one processor and an interface circuit, the interface circuit is configured to provide data or code instructions for the at least one processor, and the at least one processor is configured to implement the method as described in fig. 2 above by logic circuitry or executing the code instructions.
Based on the same inventive concept, the embodiments of the present application also provide a computer readable storage medium having stored thereon a computer program/instruction which, when executed by a processor, implements a method as described in fig. 2 above.
Based on the same inventive concept, embodiments of the present application also provide a computer program product comprising a computer program/instruction which, when executed by a processor, implements a method as described in fig. 2 above.
From the above, it can be seen that: in the above embodiment of the present application, the user traffic data and the user location data of each cell in the preset area in the preset period are obtained first, then, K first co-coverage cells with the traffic area overlapping rate not less than the first preset overlapping rate are determined according to the user traffic data and the user location data of each cell, K is a positive integer greater than or equal to 2, and then, if it is determined that the K first co-coverage cells correspond to at least two frequency bands, according to the bandwidth requirements in the K first co-coverage cells, the cell with the total capacity not less than at least one frequency band of the bandwidth requirements is taken as the target cell, and the cells of other frequency bands except the target cell are turned off. Therefore, by selecting the cells which can be turned off from the same coverage cells, even if the cells are turned off, users in the turned-off cells can still continue to provide services by the base stations in the same coverage cells which are not turned off, and the cell turning-off mode can not only realize energy conservation and emission reduction through the turned-off cells, but also continue to maintain the use experience of the users in the turned-off cells, so that the double effects of energy conservation and emission reduction and user experience maintenance can be realized. And by referring to the cells of other frequency bands which are preferentially turned off according to the bandwidth requirements in the same coverage cell, the service of the user in the frequency band is affected as little as possible, the use experience of the user is maintained maximally, the least cell which just meets the bandwidth requirements can be reserved as much as possible, the turn-off cell is turned off maximally, and the maximized energy saving and emission reduction effects are realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, or as a computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (9)

1. A method of cell shutdown, the method comprising:
acquiring user flow data and user position data of each cell in a preset area in a preset period;
According to the user flow data and the user position data of each cell, K first same coverage cells with the flow area overlapping rate not smaller than a first preset overlapping rate are determined, wherein K is a positive integer larger than or equal to 2;
if the K first co-coverage cells are determined to correspond to at least two frequency bands, taking a cell with total capacity not smaller than at least one frequency band of the bandwidth requirements as a target cell according to the bandwidth requirements in the K first co-coverage cells, and turning off cells of other frequency bands except the target cell;
The determining, according to the user traffic data and the user location data of each cell, K first co-coverage cells with traffic area overlapping rates reaching a first preset overlapping rate includes:
Determining a flow circle center and a flow radius of each cell according to the user flow data and the user position data of each cell, and determining a flow area corresponding to each cell based on the flow circle center and the flow radius;
selecting a cell with the lowest user flow data in the cells as a reference cell, obtaining alternative adjacent cells with flow areas overlapping with the flow areas of the reference cell from the adjacent cells of the reference cell, calculating the overlapping area of the flow areas of each alternative adjacent cell and the flow areas of the reference cell, and taking the ratio of the overlapping area to the area of the flow areas of each alternative adjacent cell as the flow overlapping rate of each alternative adjacent cell and the reference cell;
and taking the alternative adjacent cells with the flow overlapping rate not smaller than the first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
2. The method of claim 1, wherein after the turning off cells of other frequency bands than the target cell, the method further comprises:
And acquiring the current resource occupancy rates of the users in the K first co-coverage cells, and restarting the cells of other frequency bands except the target cell if the current resource occupancy rates exceed a preset resource occupancy rate threshold.
3. The method of claim 1, wherein after the turning off cells of other frequency bands than the target cell, the method further comprises:
and acquiring the current energy efficiency of the K first co-coverage cells, and if the current energy efficiency is determined to not reach the preset energy saving effect and the target cells correspond to the same frequency band, turning off the target cell with the lowest user flow data in the target cells.
4. The method of claim 1, wherein the method further comprises:
And if the K first co-coverage cells correspond to the same frequency band, turning off the cell with the lowest user flow data in the K first co-coverage cells.
5. The method of claim 4, wherein after the turning off the cell with the lowest user traffic data among the K first co-coverage cells, further comprising:
Acquiring current energy efficiency of the K first co-coverage cells, if the current energy efficiency still does not reach preset energy efficiency, determining M second co-coverage cells with the flow area overlapping rate not smaller than a second preset overlapping rate according to the user flow data and the user position data of each cell, and turning off a cell with the lowest user flow data in the M second co-coverage cells;
Wherein the second preset overlap rate is less than the first preset overlap rate.
6. The method according to any of claims 1 to 5, wherein the target cell is preferably a cell or a combination of cells of a low frequency band.
7. A cell shutdown apparatus, comprising:
An acquisition unit, configured to acquire user traffic data and user location data of each cell in a preset area in a preset period;
a determining unit, configured to determine, according to the user traffic data and the user location data of each cell, K first co-coverage cells with traffic area overlapping rates not less than a first preset overlapping rate, where K is a positive integer greater than or equal to 2;
A processing unit, configured to, if it is determined that the K first co-coverage cells correspond to at least two frequency bands, switch off cells of other frequency bands except for the target cell by using, as the target cell, a cell of at least one frequency band having a total capacity not less than the bandwidth requirement according to the bandwidth requirement in the K first co-coverage cells;
Wherein, the determining unit is specifically configured to:
Determining a flow circle center and a flow radius of each cell according to the user flow data and the user position data of each cell, and determining a flow area corresponding to each cell based on the flow circle center and the flow radius;
selecting a cell with the lowest user flow data in the cells as a reference cell, obtaining alternative adjacent cells with flow areas overlapping with the flow areas of the reference cell from the adjacent cells of the reference cell, calculating the overlapping area of the flow areas of each alternative adjacent cell and the flow areas of the reference cell, and taking the ratio of the overlapping area to the area of the flow areas of each alternative adjacent cell as the flow overlapping rate of each alternative adjacent cell and the reference cell;
and taking the alternative adjacent cells with the flow overlapping rate not smaller than the first preset overlapping rate as a first co-coverage cell corresponding to the reference cell.
8. A computing device comprising at least one processor and interface circuitry to provide data or code instructions for the at least one processor, the at least one processor to implement the method of any one of claims 1 to 6 by logic circuitry or execution of the code instructions.
9. A computer readable storage medium having stored thereon a computer program/instruction which, when executed by a processor, implements the method of any of claims 1 to 6.
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