CN114401486A - Cell turn-off method and device - Google Patents

Cell turn-off method and device Download PDF

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CN114401486A
CN114401486A CN202111611179.0A CN202111611179A CN114401486A CN 114401486 A CN114401486 A CN 114401486A CN 202111611179 A CN202111611179 A CN 202111611179A CN 114401486 A CN114401486 A CN 114401486A
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cell
cells
user
preset
data
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CN114401486B (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 switching-off method and a cell switching-off device are used for achieving the double effects of energy conservation and emission reduction and maintaining user experience in the technical field of communication. The method comprises the following steps: and determining a first same coverage cell with the flow area overlapping rate not less than a first preset overlapping rate according to the user flow data and the user position data of each cell, and taking the cell with the total capacity not less than at least one frequency band required by the bandwidth in the first same coverage cell as a target cell and turning off the cells of other frequency bands except the target cell when the first same coverage cell corresponds to at least two frequency bands. By switching off the cell in the same coverage cell, the user in the switched-off cell can continue to provide services by the base station in the same coverage cell which is not switched off, thereby being beneficial to realizing double effects of energy conservation, emission reduction and user use experience maintenance.

Description

Cell turn-off method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a cell turn-off method and apparatus.
Background
In recent years, with the increasing construction of base stations, the operating cost of base stations is increasing. Especially, the 5G base station has power consumption 3-4 times that of the 4G base station due to the factors of larger bandwidth, more channels, lower device integration level and the like. The existing data shows that 5G base stations established nationwide will have electricity charges of over 300 billion in the next year. Therefore, power saving for 5G base stations has become a troublesome issue to consider in 5G business.
However, the prior art generally only considers base station traffic data in a single 5G cell, and turns off the base station in the 5G cell when the base station traffic data is not greater than a set traffic threshold. Obviously, although the cell shutdown method can save power consumption by shutting down the cell, the consideration factor is too single, and it is likely that the user in the cell cannot use the traffic well due to the fact that the cell to be shutdown cannot be accurately located, which is not favorable for improving the user experience.
In summary, there is a need for a cell shutdown method for accurately positioning a cell capable of being shutdown on the basis of not affecting user experience as much as possible, so as to achieve the dual effects of energy saving, emission reduction and user experience maintenance.
Disclosure of Invention
The application provides a cell switching-off method and a cell switching-off device, which are used for accurately positioning a cell capable of being switched off on the basis of not influencing the user experience 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: the method comprises the steps of firstly obtaining user flow data and user position data of each cell in a preset area within a preset time period, then determining K first same coverage cells with the flow area overlapping rate not less 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, and then taking the cell with the total capacity not less than at least one frequency band with the bandwidth requirement as a target cell according to the bandwidth requirement in the K first same coverage cells if the K first same coverage cells correspond to at least two frequency bands, and turning off the cells with other frequency bands except the target cell.
In the design, the cells which can be switched off are selected from the same coverage cell, and even after the cells are switched off, users in the switched-off cells can still continue to provide services by the base stations in the same coverage cell which is not switched off. And the cells of other frequency bands are preferentially shut down by referring to the bandwidth requirements in the same coverage cell, so that the service of the user in the frequency band is influenced as little as possible, the use experience of the user is maintained to the maximum extent, the minimum cells which just meet the bandwidth requirements can be reserved as much as possible, the cells which can be shut down are shut down to the maximum extent, and the maximum energy-saving and emission-reducing effects are realized.
In one possible design, the predetermined time period may be a night time period, such as 23:00-5: 30. Therefore, the cell switching-off method is performed in the night time period with low user demand degree in a more targeted manner, so that the cell switching-off can be performed under the necessary condition, and the analysis can be performed in all the time periods, thereby effectively saving the calculation resources.
In one possible design, the target cell may prefer a low frequency band cell or combination of cells, such as a 4G cell (e.g., an 800M cell and/or a 1.8G cell), while turning off a 5G cell (e.g., a 2.1G cell). Therefore, the low-frequency band cell has higher energy consumption than the medium-frequency band cell, and therefore, the medium-frequency band cell is preferably turned off, and energy conservation and emission reduction can be better performed.
In one possible design, determining K first cells covered together with a traffic area overlap ratio reaching a first preset overlap ratio 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 overlapped 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, and 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 finally, taking the alternative adjacent cell with the flow overlapping rate not less than the first preset overlapping rate as a first same 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, so that 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 turning off cells of other frequency bands except for the target cell, the current resource occupancy rates of users in K first cells covered together may also be obtained, and if the current resource occupancy rates exceed a preset resource occupancy rate threshold, the cells of other frequency bands except for the target cell are re-enabled. Therefore, by continuously monitoring the resource occupancy rate of the user after the cell is switched off, the switched-off cell can be timely recovered when the demand degree of the user for the resource is suddenly increased and only the remaining cells can not provide the high resource, so that the resource use of the user can be ensured to be not influenced while the cell switching-off method is executed.
In one possible design, after turning off cells of other frequency bands except for the target cell, current energy efficiencies of K first cells covered together may also be obtained, and if it is determined that the current energy efficiencies still do not achieve the preset energy saving effect and the target cell corresponds to the same frequency band, the target cell with the lowest user traffic data in the target cell is turned off. Therefore, the cells of the same frequency band are preferentially reserved in the process of saving energy efficiency, and the cells of the same frequency band are turned off only when the cells of different frequency bands are not turned off and the preset energy efficiency is not achieved, so that the optimal energy efficiency effect can be gradually achieved 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 K first cells of the same coverage correspond to the same frequency band, the cell with the lowest user traffic data in the K first cells of the same coverage 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 cell shutdown on the service use of the user can be reduced as much as possible by shutting down the base station in the cell with the lowest user flow demand and not shutting down the base station in the cell with the higher user flow.
In one possible design, after the cell with the lowest user traffic data in the K first cells with the same coverage is turned off, the current energy efficiency of the K first cells with the same coverage may be obtained, and if the current energy efficiency does not reach the preset energy efficiency, M second cells with the same coverage having the flow area overlapping rate not less than the second preset overlapping rate are determined according to the user traffic data and the user location data of each cell, and the cell with the lowest user traffic data in the M second cells with the same coverage is turned off. The second preset overlap ratio is smaller than the first preset overlap ratio, for example, the first preset overlap ratio may be selected to be 80%, and the second preset overlap ratio may be selected to be 70%. Therefore, according to the sequence of the coverage areas from high to low, the optimal cell is selected from the cells with high coverage area for switching off, and then the suboptimal cell is selected from the cells with low coverage area for switching off when the energy efficiency still does not achieve the preset effect, so that the energy efficiency is gradually reduced, and the influence on the switched-off cells is minimized.
In a second aspect, the present application provides a cell shutdown apparatus, including: the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring user flow data and user position data of each cell in a preset area within a preset time period; a determining unit, configured to determine, according to user traffic data and user location data of each cell, K first cells covered together, where K is a positive integer greater than or equal to 2, and a traffic area overlap rate is not less than a first preset overlap rate; and the processing unit is used for taking the cell with the total capacity not less than the bandwidth requirement of at least one frequency band as a target cell and switching off the cells with other frequency bands except the target cell according to the bandwidth requirement of the K first same coverage cells if the K first same coverage cells correspond to the at least two frequency bands.
In one possible design, the determining unit is specifically configured to: determining a flow circle 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 circle 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 overlapped flow areas and the flow area of the reference cell from each adjacent cell of the reference cell, calculating the overlapped area of the flow area of each alternative adjacent cell and the flow area of the reference cell, taking the ratio of the overlapped 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 then taking the alternative adjacent cell with the flow overlapping rate not less than a first preset overlapping rate as a first same covered cell corresponding to the reference cell.
In one possible design, after turning off cells of other frequency bands except for the target cell, the processing unit may further obtain current resource occupancy rates of users in the K first cells covered together, and if the current resource occupancy rates exceed a preset resource occupancy rate threshold, re-enable the cells of other frequency bands except for the target cell.
In one possible design, after turning off cells of other frequency bands except for the target cell, the processing unit may further obtain current energy efficiencies of K first cells covered together, and if it is determined that the current energy efficiency has not yet reached 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, if the processing unit determines that the K first cells covered together correspond to the same frequency band, the processing unit turns off the cell with the lowest user traffic data in the K first cells covered together.
In one possible design, after turning off a cell with the lowest user traffic data in K first cells covered together, the processing unit may further obtain current energy efficiencies of the K first cells covered together, and if the current energy efficiency has not yet reached a preset energy efficiency, determine M second cells covered together with the flow area overlapping rate not less than a second preset overlapping rate according to the user traffic data and the user location data of each cell, and turn off the cell with the lowest user traffic data in the M second cells covered together with the flow area overlapping rate, where the second preset overlapping rate is less than the first preset overlapping rate.
In one possible design, the target cell prefers a cell or combination of cells in the low frequency band.
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/instructions which, when executed by a processor, implement a method as designed in any one of the first aspects above.
In a fifth aspect, a computer program product comprises computer programs/instructions which, when executed by a processor, implement the method as designed in any one of the first aspects above.
For the beneficial effects of the second aspect to the fifth aspect, please refer to the technical effects that can be achieved by the corresponding design in the first aspect, and the detailed description is omitted here.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 schematically illustrates a possible system architecture provided by an embodiment of the present application;
fig. 2 is a schematic flowchart illustrating a cell shutdown method provided in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a flow area provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram illustrating a cell shutdown apparatus provided for an embodiment of the present invention;
fig. 5 is a schematic structural diagram illustrating another cell shutdown apparatus provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments of the present application will be described in detail with reference to the drawings in the embodiments of the present application.
Fig. 1 exemplarily shows a schematic diagram of a possible system architecture provided by an embodiment of the present application, as shown in fig. 1, 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 cell of the plurality of cells is provided with a base station which is a basic unit forming the cell in the mobile communication network and is used for completing the communication and management functions between the mobile communication network and the mobile communication users. By default, the base station in each cell is in an active state, i.e. the user in each cell can communicate with other users through the base station in the cell, or perform some other online services, such as playing online games, watching online videos, or shopping.
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 as needed, for example, the preset area may be a certain province, a city, a county city, or a township, or may be a certain adjacent province, a certain city, a certain county city, or a certain township, or may be a partial area in a certain or certain province, city, county city, or township, which is not specifically limited.
Illustratively, as shown in fig. 1, when executing the cell shutdown method, one side of the network manager 101 may connect to base stations in respective cells within a preset area, and the other side may connect to the cell shutdown device 102, and the connection manner is not limited to wired connection or wireless connection. Thus, the network manager 101 may obtain the user related data in each cell periodically or in real time through interacting with the base station in each cell, and report the user related data in each cell to the cell shutdown device 102, 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, so that the network manager 101 shuts down the one or more cells in the preset cell according to the indication of the cell shutdown device 102.
It should be noted that the circular area or the elliptical area of each cell in fig. 1 is only used for indicating the geographical area occupied by the cell, and has no direct association with the coverage area of the base station disposed therein. In addition, the foregoing is only an exemplary architecture, and in other examples, the system architecture may further include other devices, such as a base station controller, a switch, or a modem device, which is not specifically limited in this embodiment of the present application.
Based on the system architecture illustrated in fig. 1, fig. 2 schematically illustrates a flow chart of a cell shutdown method provided in an embodiment of the present application, where the method is applied 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 location data of each cell in a preset area in a preset time period.
Illustratively, the preset time period may refer to a time period when the demand of the user for the flow is not high, such as 23:00-5:30 at night. Therefore, the cell switching-off method is performed in the night time period with low user demand degree in a more targeted manner, the cell switching-off can be performed under the necessary condition, and the analysis can be performed in all the time periods, so that the energy conservation and emission reduction can be performed while the calculation complexity is reduced.
In the embodiment of the application, the cell shutdown device can obtain user traffic data and user position data of each cell in a preset region in a preset time period from a network management side. The user traffic data may specifically refer to user traffic data, including but not limited to data of making a call, data of receiving and sending a short message, and data of accessing the internet. The user location data may specifically refer to Call Detail Tracking (CDT) data of the user, and may also be referred to as Measurement Report (MR) data in some embodiments. In addition, considering that the 4G cell and the 5G cell have higher energy consumption than 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, and the obtaining manner may be actively sending an instruction to the network management for obtaining, or actively reporting by the network management side, for example, the network management side reports the user traffic data and the user location data according to a certain period, which is not specifically limited.
Step 202, according to the user traffic data and the user location data of each cell, determining K first cells covered together, where K is a positive integer greater than or equal to 2, and the traffic area overlap rate is not less than a first preset overlap rate.
For example, the cell shutdown device may determine the traffic circle center and the traffic radius of each cell according to the user traffic data and the user location data of each cell, determining a flow area corresponding to each cell based on the flow circle center and the flow radius, then selecting a cell with the lowest user flow data from each cell as a reference cell, and obtaining alternative adjacent cells with overlapped flow areas and the flow area of the reference cell from each adjacent cell of the reference cell, calculating the overlapped area of the flow area of each alternative adjacent cell and the flow area of the reference cell, taking the ratio of the overlapped 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 finally taking the alternative adjacent cell with the flow overlapping rate not less than the first preset overlapping rate as a first same covering cell corresponding to the reference cell.
Further illustratively, the first preset overlap ratio may be a ratio indicating that the traffic areas of the two cells substantially overlap, may be set empirically by those skilled in the art, or may be verified experimentally, and may be set to 80% or more, for example, preferably.
For example, still 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 rate of the traffic areas of the cell B and the cell a is 80%, the overlapping rate of the traffic areas of the cell C and the cell a is 90%, the overlapping rate of the traffic areas of the cell D and the cell a is 30%, and the overlapping rate of the traffic areas of the cell E and the cell a is 0, then: when the first preset overlap rate is 80%, the cell B and the cell C belong to a first co-coverage cell of the cell a, that is, 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 cells covered together is greater than 1, if yes, performing step 204, and if not, performing step 205.
And 204, taking the cell with the total capacity not less than the bandwidth requirement of at least one frequency band as a target cell according to the bandwidth requirement of the K first cells covered together, and turning off the cells with other frequency bands except the target cell.
Exemplarily, after K first common coverage cells are determined, the cell shutdown device may determine, according to user traffic data of each first common coverage cell, the number of users currently using traffic, a user traffic demand, and Physical Resource Block (PRB) information of the users in each first common coverage cell, then calculate, according to the number of users of the K first common coverage cells, to obtain a total number of users, determine, according to the user traffic demand of the K first common coverage cells, a total user traffic demand, determine, according to the PRB information of the K first common coverage cells, a PRB occupancy, and then evaluate bandwidth requirements in the K first common coverage cells according to the total user traffic demand, and the PRB occupancy. Then, the cell turning-off device may determine the capacity that each first common coverage cell can provide according to the cell frequency band of each first common coverage cell and the preset corresponding relationship between the cell frequency band and the capacity, further select all cells or cell combinations from the K first common coverage cells, the capacity of which can support the bandwidth requirements of the K first common coverage cells, select one cell or cell combination from the all cells or cell combinations to cooperate as a target cell, and turn off other cells. The preset corresponding relationship between the cell frequency band and the capacity may specifically refer to the existing protocol, for example, in a 3GPP protocol, 184 downlink user number capacities are supported by a cell in a scenario of 20M bandwidth, a single user rate of 1Mbps, and a 1T2R MIMO mode.
It should be noted that the bandwidth requirement may refer to a wireless bandwidth requirement, and may also refer to a user bandwidth requirement. For ease of understanding, a specific example is described below with reference to wireless bandwidth requirements.
Continuing to refer to fig. 3, assuming that cell a, cell B, and cell C are first cells covered together, cell a is 800M cell, cell B is 1.8G cell, cell C is 2.1G cell, the wireless bandwidth corresponding to the 800M cell is 5M, the wireless bandwidth corresponding to 1.8G is 20M, the wireless bandwidth corresponding to the 2.1G cell is 45M, and the number of users in the 3 first cells covered together is 10, then:
in case one, assuming that the 10 users occupy 4M of wireless bandwidth together, it indicates that the wireless bandwidth requirement in cell a, cell B, and cell C is 4M, and the wireless bandwidth 5M corresponding to the 800M cell is enough to provide 4M of bandwidth, so that the 800M cell can be used as the target cell, and the 1.8G cell and the 2.1G cell are turned off;
in case two, assuming that the 10 users occupy the wireless bandwidth of 21M in total, it indicates that the wireless bandwidth requirement in the cell a, the cell B, and the cell C is 21M, and the sum of the wireless bandwidth 5M corresponding to the 800M cell and the wireless bandwidth 20M corresponding to the 1.8G cell is 25M, which is enough to provide the bandwidth of 21M, so that the 800M cell and the 1.8G cell can be used as the target cells, and the 2.1G cell can be turned off;
in case three, assuming that the 10 users occupy 25M of wireless bandwidth altogether, it indicates that the wireless bandwidth requirements in the cell a, the cell B, and the cell C are 25M, although the sum of the wireless bandwidth 5M corresponding to the 800M cell and the wireless bandwidth 20M corresponding to the 1.8G cell is just 25M, if only the 800M cell and the 1.8G cell are reserved, there is no bandwidth margin in the entire system, in this case, increasing the traffic of one user or a certain user a little more, and the like, will cause the entire system to be directly overloaded, resulting in poor system availability. Based on this, cells or combinations of cells with a total amount of radio bandwidth slightly larger than 25M can be selected as the target cell, e.g. 2.1G cell as the target cell and 800M cell and 1.8G cell switched off.
Further illustratively, the target cell may prefer a low frequency band cell or combination of cells when there are multiple target cells, considering that a 4G cell can have lower energy consumption than a 5G cell. For example, in the above case two as an example, when the wireless bandwidth requirement is 21M, the cell combination of the 800M cell and the 1.8G cell is taken as a feasible target cell, and since the wireless bandwidth 45M corresponding to the 2.1G cell is also sufficient to provide the bandwidth of 21M, the 2.1G cell may also be taken as a feasible target cell, although there are two cell shutdown schemes at this time, that is, the 800M cell and the 1.8G cell are reserved and the 2.1G cell is turned off, or the 2.1G cell is reserved and the 800M cell and the 1.8G cell are turned off, since the frequency bands of the 800M cell and the 1.8G cell are lower than the frequency band of the 2.1G cell, the 800M cell and the 1.8G cell may be taken as the finally determined target cell, and the 2.1G cell is turned off. Thus, by reserving 800M cell a and 1.8G cell B belonging to 4G cell and switching off 2.1G cell C belonging to 5G cell, better energy saving is achieved.
In an optional embodiment, after the cell shutdown device shuts down the cells in the frequency bands other than the target cell, the cell shutdown device may further monitor resource occupancy rates of users in K first cells covered together, and when it is found that the resource occupancy rate at a certain time exceeds a preset resource occupancy rate threshold, it means that the resource demand level of the users is suddenly increased, and the currently only stored cell cannot provide such high resources, at this time, the cell shutdown device may restart the cells in the frequency bands other than the target cell, so as to meet the sudden traffic demand of the current users as soon as possible by recovering the shut-down cells in time.
It should be noted that the above monitoring of the resource occupancy is only an optional embodiment, and in other embodiments, the cell shutdown device may also monitor other network indicators, such as the number of users using traffic or the total traffic required by the users, and the like, which is not limited specifically.
In an optional embodiment, after the cell shutdown device shuts down cells of other frequency bands except for the target cell, current energy efficiencies of K first cells covered together may also be obtained, and if it is determined that the current energy efficiency still does not achieve the preset energy saving effect, it is determined again whether the remaining target cells not shut down correspond to at least two frequency bands, if so, a cell is continuously selected from the remaining target cells not shut down to be shut down, and certainly, when the selected cell is shut down, it is also required to ensure that the total capacity that can be provided by the cells not shut down is not less than the bandwidth requirement of the user. On the contrary, if the remaining target cells that are not turned off correspond to the same frequency band, the cell turning-off device may select the target cell with the lowest user traffic from the remaining target cells that are not turned off to turn off (please refer to step 204 below, which will not be described in detail first), so as to reserve the cell with the highest user traffic as much as possible.
In the above steps 203 and 204, by preferentially reserving cells in the same frequency band in the energy saving process, and turning off the cells in the same frequency band only when the cells in different frequency bands are not turned off yet to reach the preset energy efficiency, the best energy efficiency effect can be gradually achieved on the basis of ensuring that users in the same frequency band are not affected as much as possible, and the stability of turning off the cells is effectively improved.
Step 205, turning off the cells with the lowest user traffic data in the K first cells covered together.
For example, as shown in fig. 3, assuming that the cell a, the cell B, and the cell C are first cells covered together, 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 are sequentially reduced, the cell shutdown device may shut down the cell a with the lowest user traffic data in the cell a, the cell B, and the cell C, so as to reduce the influence of the shutdown cell on the user services in the cell B and the cell C with higher user traffic 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 cells covered together, the current energy efficiencies of the K first cells covered together may also be obtained, and if the current energy efficiency still does not reach the preset energy efficiency, according to the user traffic data and the user position data of each cell, M second cells covered together with the same traffic area overlapping rate not less than the second preset overlapping rate may be redetermined, so as to shut down the cell with the lowest user traffic data in the M second cells covered together with the same traffic area overlapping rate. Wherein the second predetermined overlapping rate is smaller than the first predetermined overlapping rate. For example, as shown in fig. 3, assuming that the first predetermined overlap ratio is 85%, the second predetermined overlap ratio is 75%, the overlap ratio of the traffic region of cell B and cell a is 80%, the overlap ratio of the traffic region of cell C and cell a is 90%, the overlap ratio of the traffic region of cell D and cell a is 30%, and the overlap ratio of the traffic region of cell E and cell a is 0, then:
since the first preset overlap rate is 85%, when the cell B belongs to the first co-coverage cell of the cell a, and it is assumed that after the cell B is turned off by the cell turning-off device in the above steps 202 to 205, the cell a provides traffic to the user in the cell B, it is found that the energy efficiency ratio achieved by cell a providing traffic to users in cell a and cell B still fails to achieve the preset energy efficiency effect, and at this time, the cell switching-off device may further search remaining cells that are not switched off based on the second preset overlap ratio of 75%, find that the cell C belongs to a second same-coverage cell of the cell a, after turning off cell C through steps 202 to 205, cell a provides traffic to users in cell C, as such, the energy efficiency ratio of cell a to provide traffic to users in cells a, B, and C can be further approximated to the preset energy efficiency effect.
In step 205, the optimal cells are selected from the cells with high coverage area to turn off in the order from high coverage area to low coverage area, and then the second optimal cells are selected from the cells with low coverage area to turn off when the energy efficiency still does not achieve the preset effect, so that the energy efficiency is gradually reduced and the influence on the turned-off cells is minimized.
In the embodiment of the application, user flow data and user position data of each cell in a preset area in a preset time period are obtained, then 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 less than a first preset overlapping rate are determined, wherein K is a positive integer greater than or equal to 2, and then if the K first same coverage cells correspond to at least two frequency bands, according to bandwidth requirements in the K first same coverage cells, the cell with at least one frequency band with the total capacity not less than the bandwidth requirement is taken as a target cell, and cells of other frequency bands except the target cell are turned off. Therefore, by selecting the cell which can be switched off in the same coverage cell, even after the cell is switched off, the user in the switched-off cell can still continue to provide services by the base station in the same coverage cell which is not switched off. And the cells of other frequency bands are preferentially shut down by referring to the bandwidth requirements in the same coverage cell, so that the service of the user in the frequency band is influenced as little as possible, the use experience of the user is maintained to the maximum extent, the minimum cells which just meet the bandwidth requirements can be reserved as much as possible, the cells which can be shut down are shut down to the maximum extent, and the maximum energy-saving and emission-reducing effects are realized.
For the above method flow, an embodiment of the present application further provides a cell shutdown device, and specific contents of the device may be implemented with reference to the above method.
Fig. 4 is a schematic structural diagram illustrating a cell shutdown apparatus according to an embodiment of the present invention, and as shown in fig. 4, the cell shutdown apparatus 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 relationship of the modules is shown in fig. 4. In the implementation:
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 turn-off selection module 402;
the turn-off selection module 402 determines, by combining the configured first preset overlap rate obtained from the input module 406 and the user traffic data and the user location data of each cell sent by the data acquisition module 401, K first cells covered together, of which the overlap rate of the traffic areas is not less than the first preset overlap rate, from each cell, and sends the K first cells covered together to the pre-evaluation module 403, where K is a positive integer greater than or equal to 2;
the pre-evaluation module 403, in combination with the turn-off evaluation algorithm obtained from the input module 406, determines whether the number of frequency bands corresponding to the K first cells covered together is greater than 1, and when the number of frequency bands is greater than 1, according to the bandwidth requirement in the K first cells covered together, takes a cell with at least one frequency band whose total capacity is not less than the bandwidth requirement as a target cell, and sends indication information for turning off cells of other frequency bands except the target cell to the auditing module 404; otherwise, when the number of cells is equal to 1, sending the indication information for turning off the cell with the lowest user traffic in the K first cells covered together to the auditing module 404;
the auditing module 404 obtains some other information from the input module 406, such as complaint information of a user or preconfigured information, and determines whether the cell that is indicated by the pre-evaluation module 403 to be turned off can be turned off in combination with some cells that cannot be turned off and indicated by the information, if it is determined that the cell that is indicated by the information can be turned off, the turned-off information is sent to the implementing module 405, and if it is determined that the cell cannot be turned off, the information that the turning-off is wrong is sent to the pre-evaluation module 403, and the pre-evaluation module 403 is instructed to reselect another cell as the cell to be turned off;
the implementation module 405 sends the cells to be shut down to the network manager 101, instructs the network manager 101 to shut down the cells, and after shutting down the cells, the network manager 101 obtains effect information after actual shut down by monitoring a preset area, and sends the effect information to the intelligent improvement module 407, wherein 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 the shutdown mode needs to be modified according to the effect information after the actual shutdown, and if so, sends the modified shutdown mode 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 restarts the shutdown cell through the pre-evaluation module 403, the auditing module 404, and the implementation module 405.
Fig. 5 exemplarily shows a schematic structural diagram of another cell shutdown device provided for the embodiment of the present invention, and as shown in fig. 5, the cell shutdown device 500 includes:
an obtaining unit 501, configured to obtain user traffic data and user location data of each cell in a preset area in a preset time period;
a determining unit 502, configured to determine, according to user traffic data and user location data of each cell, K first cells covered together, where K is a positive integer greater than or equal to 2, and a traffic area overlap rate is not less than a first preset overlap rate;
a processing unit 503, configured to, if it is determined that the K first cells covered together correspond to at least two frequency bands, take a cell with at least one frequency band whose total capacity is not less than a bandwidth requirement as a target cell according to the bandwidth requirement in the K first cells covered together, and turn off cells with other frequency bands except the target cell.
In one possible design, the determining unit 502 is specifically configured to: determining a flow circle 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 circle 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 flow areas overlapped 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 less than the first preset overlapping rate as a first same covering cell corresponding to the reference cell.
In one possible design, after turning off the cells in the frequency bands other than the target cell, the processing unit 503 may further obtain current resource occupancy rates of users in K first cells covered together, and if the current resource occupancy rates exceed a preset resource occupancy rate threshold, re-enable the cells in the frequency bands other than the target cell.
In a possible design, after turning off cells of other frequency bands except for the target cell, the processing unit 503 may further obtain current energy efficiencies of K first cells covered together, and if it is determined that the current energy efficiency has not yet reached 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, if it is determined that the K first cells covered together correspond to the same frequency band, the processing unit 503 turns off the cell with the lowest user traffic data in the K first cells covered together.
In one possible design, after turning off cells of other frequency bands except for the target cell, the processing unit 503 may further obtain current energy efficiencies of K first cells covered together, determine, according to user traffic data and user location data of each cell, M second cells covered together, where an overlap ratio of a traffic area is not less than a second preset overlap ratio, and turn off a cell with a lowest user traffic data in the M second cells covered together, if the current energy efficiency has not yet reached the preset energy efficiency. Wherein the second predetermined overlapping rate is smaller than the first predetermined overlapping rate.
In one possible design, the target cell may prefer a low frequency band cell or combination of cells.
Based on the same inventive concept, the present application further provides an electronic device, which includes at least one processor and an interface circuit, where 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 according to fig. 2 by using logic circuits or executing the code instructions.
Based on the same inventive concept, the present application also provides a computer-readable storage medium, on which a computer program/instructions are stored, and when the computer program/instructions are executed by a processor, the computer program/instructions implement the method as described in fig. 2 above.
Based on the same inventive concept, the present application also provides a computer program product, which includes a computer program/instructions, and when the computer program/instructions are executed by a processor, the computer program/instructions implement the method as described in fig. 2 above.
From the above, it can be seen that: in the above embodiment of the present application, user traffic data and user location data of each cell in a preset region in a preset time period are obtained, and then according to the user traffic data and the user location data of each cell, K first common coverage cells with a traffic area overlapping rate not less than a first preset overlapping rate are determined, where K is a positive integer greater than or equal to 2, and then if it is determined that the K first common coverage cells correspond to at least two frequency bands, according to bandwidth requirements in the K first common coverage cells, a cell with at least one frequency band with a total capacity not less than the bandwidth requirement is taken as a target cell, and cells with other frequency bands except the target cell are turned off. Therefore, by selecting the cell which can be switched off in the same coverage cell, even after the cell is switched off, the user in the switched-off cell can still continue to provide services by the base station in the same coverage cell which is not switched off. And the cells of other frequency bands are preferentially shut down by referring to the bandwidth requirements in the same coverage cell, so that the service of the user in the frequency band is influenced as little as possible, the use experience of the user is maintained to the maximum extent, the minimum cells which just meet the bandwidth requirements can be reserved as much as possible, the cells which can be shut down are shut down to the maximum extent, and the maximum energy-saving and emission-reducing effects are realized.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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. Therefore, it is intended that the appended claims be interpreted as including 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 changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A method of cell turn-off, the method comprising:
acquiring user traffic data and user position data of each cell in a preset area within a preset time period;
determining K first same coverage cells with the flow area overlapping rate not less 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;
if the K first cells covered together correspond to at least two frequency bands, taking the cell of at least one frequency band with the total capacity not smaller than the bandwidth requirement as a target cell according to the bandwidth requirement in the K first cells covered together, and turning off the cells of other frequency bands except the target cell.
2. The method of claim 1, wherein the determining K first cells of the same coverage having a traffic area overlap rate up to a first predetermined overlap rate based on the user traffic data and the user location data of each cell comprises:
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 traffic data in each cell as a reference cell, obtaining candidate adjacent cells with overlapping traffic areas and the traffic area of the reference cell from each adjacent cell of the reference cell, calculating the overlapping area of the traffic area of each candidate adjacent cell and the traffic area of the reference cell, and taking the ratio of the overlapping area to the area of the traffic area of each candidate adjacent cell as the traffic overlapping rate of each candidate adjacent cell and the reference cell;
and taking the alternative adjacent cell with the flow overlapping rate not less than the first preset overlapping rate as a first same coverage cell corresponding to the reference cell.
3. The method of claim 1 or 2, wherein after the turning off of the cells of the other frequency bands except the target cell, the method further comprises:
and acquiring the current resource occupancy rate of users in the K first cells covered together, and if the current resource occupancy rate exceeds a preset resource occupancy rate threshold, re-starting the cells of other frequency bands except the target cell.
4. The method of claim 1 or 2, wherein after the turning off of the cells of the other frequency bands except the target cell, the method further comprises:
and obtaining the current energy efficiency of the K first cells covered together, and if the current energy efficiency is determined not to achieve the preset energy-saving effect yet and the target cell corresponds to the same frequency band, turning off the target cell with the lowest user flow data in the target cell.
5. The method of claim 1 or 2, wherein the method further comprises:
and if the K first cells covered together are determined to correspond to the same frequency band, switching off the cell with the lowest user flow data in the K first cells covered together.
6. The method of claim 5, wherein after the switching off the cell with the lowest user traffic data in the K first cells of the same coverage, further comprising:
acquiring current energy efficiency of the K first same coverage cells, if the current energy efficiency does not reach preset energy efficiency, determining M second same coverage cells with a flow area overlapping rate not less than a second preset overlapping rate according to the user flow data and the user position data of each cell, and turning off the cell with the lowest user flow data in the M second same coverage cells;
wherein the second preset overlap ratio is smaller than the first preset overlap ratio.
7. The method according to claim 1 or 2, wherein the target cell prefers a cell or combination of cells in a low frequency band.
8. A cell shutdown apparatus, comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring user flow data and user position data of each cell in a preset area within a preset time period;
a determining unit, configured to determine, according to the user traffic data and the user location data of each cell, K first cells covered together, where K is a positive integer greater than or equal to 2, and a traffic area overlap rate is not less than a first preset overlap rate;
and the processing unit is used for taking a cell with at least one frequency band of which the total capacity is not less than the bandwidth requirement as a target cell according to the bandwidth requirement in the K first same coverage cells and turning off cells of other frequency bands except the target cell if the K first same coverage cells correspond to at least two frequency bands.
9. 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 being configured to implement the method of any one of claims 1 to 7 by logic circuitry or executing code instructions.
10. A computer-readable storage medium, having stored thereon a computer program/instructions, characterized in that, when executed by a processor, implements the method according to any one of claims 1 to 7.
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