WO2021128596A1 - Procédé et appareil d'économie d'énergie, dispositif informatique et support de stockage - Google Patents

Procédé et appareil d'économie d'énergie, dispositif informatique et support de stockage Download PDF

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Publication number
WO2021128596A1
WO2021128596A1 PCT/CN2020/079021 CN2020079021W WO2021128596A1 WO 2021128596 A1 WO2021128596 A1 WO 2021128596A1 CN 2020079021 W CN2020079021 W CN 2020079021W WO 2021128596 A1 WO2021128596 A1 WO 2021128596A1
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WIPO (PCT)
Prior art keywords
turned
remote
remote units
cell
remote unit
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PCT/CN2020/079021
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English (en)
Chinese (zh)
Inventor
刘震
徐慧俊
张琼
黄鹏飞
丁宝国
区洋
Original Assignee
京信通信技术(广州)有限公司
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Publication of WO2021128596A1 publication Critical patent/WO2021128596A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of mobile communication technology, in particular to an energy-saving method, device, computer equipment, and storage medium.
  • the mainstream method is to interact with neighboring cells when the cell’s traffic is small, and connect each terminal in the cell to the neighboring cell. And close the cell, so as to achieve the purpose of reducing the power consumption of the mobile communication base station system.
  • the coverage area of adjacent cells is generally very small. Handing over the terminal of the cell to be shut down to the adjacent cell often reduces the communication quality of the terminal. Therefore, the traditional energy-saving methods are not flexible enough, and it is often necessary to sacrifice the communication quality of some users.
  • an embodiment of the present application provides an energy-saving method, which includes:
  • the resource utilization rate of each remote unit in the cell indicates the proportion of the total resource amount of the cell occupied by the resources required by the remote unit;
  • each remote unit the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on, determine the list of remote units to be turned off and the list of remote units to be turned on for the cell;
  • the foregoing determination of the number of remote units to be turned on and the target bandwidth of the remote units to be turned on based on the resource utilization of each remote unit includes:
  • mapping rules include Correspondence between the total resource utilization of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the foregoing determination of the number of remote units to be turned on and the target bandwidth of the remote units to be turned on based on the resource utilization of each remote unit includes:
  • the number of remote units to be turned on and the target bandwidth of the remote units to be turned on are obtained according to the preset mapping rules and the total resource utilization of the cell; the total resource utilization of the cell is the resource utilization of each remote unit
  • the mapping rule includes the corresponding relationship between the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the foregoing preset conditions include:
  • the number of remote units with resource utilization equal to 0 in each remote unit is less than the preset number, the total resource utilization of the cell is less than the preset high threshold, or the total resource utilization of the cell is less than the preset high threshold and each remote unit
  • the number of remote units with resource utilization equal to 0 is less than the preset number.
  • the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on in the foregoing mapping rule are proportional to the relationship.
  • the above-mentioned proportional relationship includes:
  • the target bandwidth of the remote unit to be turned on is the first target bandwidth, and the number of remote units to be turned on is N1;
  • the target bandwidth of the remote unit to be turned on is the second target bandwidth, and the number of remote units to be turned on is N2;
  • the target bandwidth of the remote unit to be turned on is the third target bandwidth, and the number of remote units to be turned on is N3;
  • the first target bandwidth ⁇ the second target bandwidth ⁇ the third target bandwidth; N1 ⁇ N2 ⁇ N3.
  • the list of remote units to be turned off and the number of remote units to be turned on are determined. Open the remote unit list, including:
  • the resource evaluation value of the combined result of each remote unit is obtained; the resource evaluation value indicates that the combined result of each remote unit affects the resources in the cell Degree of utilization;
  • the remote unit is determined as the remote unit in the list of remote units to be shut down.
  • obtaining the resource evaluation value of the combined result of each remote unit according to the resource utilization rate of each remote unit and the signal coverage area of each remote unit under the target bandwidth includes:
  • the weighted sum of the capacity proportion and the coverage proportion is determined as the resource evaluation value of the combined result of each remote unit.
  • performing the energy-saving operation according to the list of remote units to be turned off, the list of remote units to be turned on, and the target bandwidth of the remote units to be turned on includes:
  • the foregoing obtaining the resource utilization rate of each remote unit in the cell includes:
  • the remote unit with the strongest signal transmission quality is determined as the corresponding remote unit of the terminal;
  • the ratio of the amount of resources required by the corresponding terminal of each remote unit to the total resource amount of the cell is determined as the resource utilization rate of each remote unit.
  • the method further includes:
  • the total resource utilization rate is the sum of the resource utilization rates of each remote unit.
  • an energy-saving device which includes:
  • the obtaining module is used to obtain the resource utilization rate of each remote unit in the cell, and the resource utilization rate indicates the proportion of the total resource amount of the cell occupied by the resources required by the remote unit;
  • the first determining module is configured to determine the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the resource utilization of each remote unit;
  • the second determining module is used to determine the list of remote units to be turned off and the number of remote units to be turned on according to the resource utilization of each remote unit, the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on Remote unit list;
  • the energy-saving module is used to perform energy-saving operations according to the list of remote units to be turned off, the list of remote units to be turned on, and the target bandwidth of the remote units to be turned on.
  • an embodiment of the present application provides a computer device, including a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the methods provided in the embodiments of the first aspect when the processor executes the computer program.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the methods provided in the above-mentioned embodiments of the first aspect are implemented.
  • the energy-saving method, device, computer equipment, and storage medium provided by the embodiments of the present application determine the number of remote units to be turned on and the target bandwidth of the remote units to be turned on based on the resource utilization of each remote unit in the cell, and determine Out of the signal coverage area of the remote unit under the target bandwidth, the list of remote units to be turned off and the list of remote units to be turned on of the cell are further determined, and then energy-saving operations are performed.
  • the working bandwidth of the remote unit in the cell is flexibly adjusted, and according to the signal coverage area of each remote unit under the target bandwidth, the open remote can be flexibly selected
  • the unit controls the turn-off and turn-on of each remote unit, realizes the rational use of hardware resources, and reduces the equipment energy consumption of the entire base station system.
  • the energy-saving method does not need to completely shut down the cell, does not need to interact with neighboring cells, and does not affect the communication quality of the terminal of the energy-saving cell, and is more flexible and extensive in applicability.
  • FIG. 1 is an application environment diagram of an energy-saving method provided by an embodiment
  • FIG. 2 is a schematic flowchart of an energy-saving method provided by an embodiment
  • FIG. 3 is a schematic flowchart of an energy-saving method according to another embodiment
  • 3a is a schematic diagram of the relative position of the remote unit and the cell signal coverage area provided by an embodiment
  • FIG. 3b is a schematic diagram of a relative position of a remote unit and a cell signal coverage area according to another embodiment
  • FIG. 4 is a schematic flowchart of an energy-saving method according to another embodiment
  • FIG. 5 is a schematic diagram of an application process of an energy saving method according to another embodiment
  • Figure 5a is a schematic diagram of an energy-saving module provided by an embodiment
  • FIG. 6 is a schematic diagram of a working state of a remote unit before energy-saving execution according to an embodiment
  • FIG. 7 is a schematic diagram of a working state of a remote unit after energy-saving execution according to an embodiment
  • FIG. 8 is a schematic diagram of a working state of a remote unit after energy-saving execution according to another embodiment
  • FIG. 9 is a schematic diagram of a working state of a remote unit after energy-saving execution according to another embodiment.
  • FIG. 10 is a schematic diagram of a working state of a remote unit after an energy-saving execution according to another embodiment
  • FIG. 11 is a structural block diagram of an energy-saving device provided by an embodiment
  • Fig. 12 is a diagram of the internal structure of a computer device in an embodiment.
  • the energy-saving method provided by this application can be applied to the distributed base station system as shown in FIG. 1.
  • the system includes a host unit (Access Unit), at least one extension unit (Switch), and at least one remote unit (Remote Unit).
  • Remote unit where the host unit is responsible for the protocol stack processing, operation and maintenance functions of the base station, and consists of a general-purpose X86 server and FPGA Field-Programmable Gate Array (FPGA) board; the expansion unit is responsible for the remote
  • the unit s IQ data downstream distribution, upstream aggregation, clock synchronization, active Ethernet (Power Over Ethernet, POE) power supply, etc., including the central processing unit (CPU) processing module, FPGA aggregation and distribution module, power supply equipment (Power Sourcing Equipment (PSE) power supply and peripheral circuit module;
  • remote unit is a low-power RRU device with radio frequency transceiver function, including CPU control module, transmission interface module, POE power supply and peripheral circuit module, radio frequency (Radio Frequency, RF
  • the host unit is connected to multiple extension units, and the extension unit can be connected to multiple remote units, which can achieve the coverage effect of a common cell or multiple cells.
  • the architecture supports the full Internet Protocol (Internet Protocol). , IP) digital connection has the advantages of high performance, large capacity, easy deployment, flexible community expansion and splitting, etc., suitable for various indoor coverage scenarios such as office buildings, shopping malls, supermarkets, hotels, dormitories, etc.
  • the embodiments of the present application provide an energy-saving method, device, computer equipment, and storage medium, and aim to provide an energy-saving method and related equipment of a distributed base station system, so as to solve the problem that traditional energy-saving methods are not flexible enough.
  • the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems will be described in detail through the embodiments and the accompanying drawings.
  • the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
  • the execution body of FIG. 2 to FIG. 5 is a host unit, where the execution body may also be an energy-saving device, and the device may be implemented through software, hardware, or a combination of software and hardware. The way is realized as part or all of the host unit.
  • Figure 2 provides an energy-saving method. This embodiment relates to the host unit according to the resource utilization rate of each remote unit in the cell, the signal coverage area of each remote unit under the target bandwidth, and the area to be turned on. The number of remote units is determined, the list of remote units to be turned off and the list of remote units to be turned on are determined, and the specific process of further performing energy-saving operations, as shown in FIG. 2, the method includes:
  • the resource utilization rate of the remote unit represents the proportion of the resource required by the remote unit occupying the total resource amount of the cell, that is, the proportion of the resource required by all terminals of the remote unit occupying the total resource of the cell, where resources include But it is not limited to PRB resource utilization, the number of connected terminals, etc.
  • a terminal can be covered by multiple remote units at the same time.
  • a terminal sends uplink signals to multiple remote units, and the uplink information is sent to the main unit through multiple remote units.
  • the main unit passes the above-mentioned multiple
  • the remote unit sends a downlink signal to the terminal to communicate downlink information.
  • For a remote unit it connects to multiple terminals and communicates with multiple terminals in uplink and downlink.
  • the foregoing acquisition of the resource utilization rate of each remote unit in the cell may be to count the amount of resources required by all terminals connected to each terminal, and then to compare the amount of resources required by all terminals connected to each terminal to the total resource amount of the cell.
  • the same terminal is usually connected to multiple remote units, and multiple remote units have to transmit the uplink and downlink data of the terminal, which causes a waste of resources.
  • the above-mentioned acquisition cell The resource utilization rate of each remote unit in the remote unit can be determined by determining a remote unit to which each terminal belongs, and each terminal only performs uplink communication with the remote unit to which it belongs, that is, the remote unit needs to be determined In this way, the resource utilization rate of the remote unit finally calculated is the proportion of resources occupied by the corresponding terminal of the remote unit.
  • the host unit Since in a distributed base station, one host unit can cover multiple cells, when energy-saving operations are performed, energy-saving operations can be performed in a cell as a unit. In this step, the host unit needs to obtain the resource utilization of each remote unit in each cell. Specifically, the host unit first determines the corresponding terminal of each remote unit in the cell, that is, determines the terminal covered by each remote unit After there is no repetition, the ratio of the resources required by the corresponding terminal of the remote unit in the total resource amount of the cell is calculated, and the ratio is the resource utilization rate of the remote unit.
  • the resource utilization rate of the remote unit is the ratio of the amount of PRB resources occupied by the terminal corresponding to the remote unit to the total amount of PRB resources in the cell where the remote unit is located.
  • S102 Determine the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the resource utilization of each remote unit.
  • the remote unit to be turned on is the remote unit that remains turned on after the base station system enters the energy-saving mode.
  • the target bandwidth is the working bandwidth of each remote unit to be turned on after the base station system enters the energy-saving mode.
  • the host unit determines the number of remote units to be turned on and the target bandwidth of the remote units to be turned on.
  • the host unit can take the resource utilization rate of each remote unit in the cell as the input of the model according to the pre-trained algorithm model, and input it into the algorithm model to directly obtain the number of remote units to be turned on and the target of the remote units to be turned on.
  • Bandwidth it can also be that the host unit first determines the total resource utilization of the cell, and then determines the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the total resource utilization of the cell, for example, based on big data distribution Specific values, specific values are determined according to a preset mapping relationship table, etc.
  • This embodiment does not limit the manner in which the host unit determines the number of remote units to be turned on and the target bandwidth of the remote units to be turned on.
  • S103 Determine a list of remote units to be turned off and a list of remote units to be turned on for the cell according to the resource utilization rate of each remote unit, the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on.
  • the signal coverage area of each remote unit under the target bandwidth can be based on the signal attenuation model, starting from the location of the remote unit with attenuation reaching a certain preset power as the coverage area boundary, and delimiting the coverage area of the remote unit.
  • the host unit needs to determine whether the remote unit to be turned on is specifically in the cell based on the resource utilization of each remote unit in the cell, the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on.
  • the remote units to be turned on are determined as the remote units in the list of remote units to be turned on, and the other remote units in the cell except the remote units to be turned on are determined as the remote units to be turned on. Turn off the remote unit in the remote unit list.
  • the processes involved in the above steps S101 to S103 may not be all executed by the host unit, that is, part or all of the processes involved in the steps S101 to S103 can be implemented by other servers, and in other servers After the above is implemented, it is transmitted to the host unit to perform the following S104 steps.
  • other methods may also be used, which are not limited in this embodiment.
  • S104 Perform an energy-saving operation according to the list of remote units to be turned off, the list of remote units to be turned on, and the target bandwidth of the remote units to be turned on.
  • the energy-saving operation mode includes: keeping the remote units in the list of remote units to be turned on, turning off the remote units in the list of remote units to be turned off, and turning off all remote units in the list of remote units to be turned on.
  • the bandwidth of the end unit is adjusted to the target bandwidth; wherein, the power of each remote unit in the list of remote units to be turned on remains unchanged. This is because when the working power of a single remote unit remains unchanged and the bandwidth becomes smaller, its coverage area will increase. This adjustment can ensure that the signal service quality of the entire cell will not deteriorate after energy-saving operations are performed.
  • the energy-saving method provided in this embodiment realizes the flexible adjustment of the working bandwidth of the remote units in the cell based on the resource occupation of each remote unit in the cell, and according to the signal of each remote unit under the target bandwidth Coverage area, flexibly select the remote units to be turned on, control the turn-off and turn-on of each remote unit, realize the rational use of hardware resources, and reduce the equipment energy consumption of the entire base station system.
  • the energy-saving method does not need to completely shut down the cell, does not need to interact with neighboring cells, and does not affect the communication quality of the terminal of the energy-saving cell, and is more flexible and extensive in applicability.
  • the application scenario of the small base station is mainly to cooperate with the macro base station to "compensate blindness" or "compensate heat".
  • Traditional energy-saving technology can only be applied to small base stations in a heat supplement scenario (for example, when the small base station has a small traffic volume, the small base station is turned off and the macro base station takes over the terminals that access the small base station), but it cannot be applied in the blind supplement scenario.
  • traditional energy-saving technology small and medium base stations interact with macro base stations based on air interface protocols (such as X2 interfaces), but different manufacturers have different air interface protocol processing mechanisms, which will affect the transfer of terminal communication services.
  • the energy-saving method proposed in this application does not require air interface interaction between base stations, and can be widely used in blind compensation scenarios and heat compensation scenarios of small base stations, and can be flexibly adjusted according to the resource occupancy of each remote unit in the cell.
  • the number of remote units to be turned on, the target bandwidth of the remote units to be turned on, and the location of the remote units to be turned on can optimize the system coverage of the small base station while achieving the purpose of energy saving.
  • S102 includes: obtaining the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to preset mapping rules and total resource utilization of the cell; wherein, the total resource utilization of the cell is the total resource utilization of each remote unit. The sum of resource utilization.
  • the mapping rule includes the correspondence between the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the mapping rules are preset. When setting the mapping rule, first divide the total resource utilization rate of the cell into different levels, and different levels correspond to different target bandwidths and the number of remote units to be turned on. For example, a high threshold, a middle threshold, and a low threshold are preset, and the total resource utilization rate of the cell is divided into different levels according to these thresholds.
  • the high threshold value can be regarded as the energy-saving start threshold.
  • the energy-saving solution provided in this application is executed when the total resource utilization rate of the cell is less than the high threshold. If the total resource utilization rate of the cell is greater than the high threshold, the application is The energy-saving operation provided is executed, otherwise the energy-saving operation is not entered.
  • the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on in the foregoing mapping rule are proportional to the relationship.
  • the above-mentioned proportional relationship includes: if the total resource utilization of the cell is less than a preset low threshold, the target bandwidth of the remote unit to be turned on is the first target bandwidth, and the number of remote units to be turned on is N1; if the total resource of the cell The utilization rate is greater than the low threshold and less than the preset middle threshold, the target bandwidth of the remote unit to be turned on is the second target bandwidth, and the number of remote units to be turned on is N2; if the total resource utilization of the cell is greater than the middle threshold and less than the preset The target bandwidth of the remote unit to be turned on is the third target bandwidth, and the number of remote units to be turned on is N3; among them, the first target bandwidth ⁇ the second target bandwidth ⁇ the third target bandwidth; N1 ⁇ N2 ⁇ N3 .
  • the resource utilization rate is the PRB utilization rate as an example, as shown in Table 1 below:
  • the host unit when the host unit obtains the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to preset mapping rules and total cell resource utilization, it can be performed under preset conditions, and then another implementation In an example, when the preset conditions are met, the number of remote units to be turned on and the target bandwidth of the remote units to be turned on are obtained according to the preset mapping rules and the total resource utilization rate of the cell.
  • the preset conditions include: the number of remote units with resource utilization equal to 0 in each remote unit is less than a preset number, the total resource utilization of the cell is less than a preset high threshold, or the total resource utilization of the cell is less than a preset
  • the set high threshold and the number of remote units with resource utilization equal to 0 in each remote unit is less than the preset number.
  • the preset high threshold is the pre-set critical value of the total resource utilization of the cell. If the total resource utilization of the cell is greater than the high threshold, it means that the current cell is not suitable for energy-saving solutions. Only the total resource utilization of the cell is less than this high threshold. Only when the threshold is high can the subsequent energy-saving steps continue. Among them, the preset high threshold can refer to the high threshold in the third case in Table 1 above.
  • the host unit determines that the number of remote units with resource utilization equal to 0 is less than the preset number, in this case, it means that most remote units are in working condition, and the total resource utilization of the cell is less than the high threshold, which is suitable for energy saving
  • the host unit is required to obtain the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the total resource utilization of the cell, so as to perform energy-saving operations on the cell.
  • the host unit determines the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the resource utilization of each remote unit, it is the remote unit whose resource utilization is equal to 0 in each remote unit.
  • the number of units is less than the preset number, or the total resource utilization of the cell is less than the preset high threshold, or the total resource utilization of the cell is less than the preset high threshold and the number of remote units with resource utilization equal to 0 in each remote unit is less than the preset
  • the quantity is carried out when any one of these three preset conditions is met. In other words, divide the total resource utilization rate of the cell and the number of remote units with the resource utilization rate equal to 0 into several different situations, and use some of these situations as preset conditions.
  • the number of remote units to be turned on and the target bandwidth of the remote units to be turned on are determined according to the resource utilization of each remote unit.
  • an embodiment is provided to describe the operation that the host unit needs to perform when the current total resource utilization rate of the cell or the number of remote units whose current resource utilization rate is equal to 0 does not meet the preset condition.
  • the total resource utilization of the cell is less than a preset high threshold and the number of remote units with resource utilization equal to 0 in each remote unit is greater than the preset number, all remote units whose resource utilization is 0 Turn off
  • the total resource utilization rate of the cell is the sum of the resource utilization rates of the remote units.
  • the host unit turns off all remote units with a resource utilization of 0 , The remote unit whose resource utilization rate is not 0 will continue to work according to the original bandwidth and original power to complete the energy-saving scheme.
  • the mapping rule provided in this embodiment pre-sets the correspondence between the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the host unit obtains the remote locations of a certain cell.
  • the resource utilization rate of the end unit, and then the resource utilization rate of the cell is obtained, the target bandwidth of the remote unit to be turned on and the number of remote units to be turned on of the cell can be determined according to the mapping rule, which is convenient, fast and accurate
  • the target bandwidth of the remote units to be turned on and the number of remote units to be turned on in the cell are determined, which improves the efficiency and accuracy of energy saving.
  • an energy-saving method is provided to describe the process of determining the remote unit list to be turned off and the remote unit list to be turned on in the above S103.
  • the above S103 includes:
  • S201 Determine multiple remote unit combination results from all remote units in the cell according to the number of remote units to be turned on.
  • the host unit can determine multiple remote unit combination results from all the remote units in the cell according to the number of remote units to be turned on.
  • the combined result can be expressed as That is, select N remote units from X remote units, and there are a total of Kind of combination.
  • the resource evaluation value indicates the degree of utilization of the resources in the cell by the combined results of each remote unit. In this embodiment, it is determined from Choosing the best combination among these combinations, it is of course to choose the combination that can provide the best service to the terminals in the cell. It can also be understood as choosing the combination with the highest utilization of the resources in the cell. .
  • the host unit determines the resource evaluation value of the combined results of various remote units according to the resource utilization rate of each remote unit and the signal coverage area of each remote unit.
  • the ratio of the resource utilization rate of the remote unit in the total resource utilization rate of the cell in the combined result of each remote unit is obtained, and the percentage of the remote unit in the combined result of each remote unit
  • the coverage proportion of the signal coverage area under the target bandwidth in the total signal coverage area of the cell, and the weighted sum of the capacity proportion and the coverage proportion is determined as the resource evaluation value of the combined result of each remote unit.
  • the capacity percentage is the percentage of the resource utilization of the remote unit in the total resource utilization of the cell in the combined result of each remote unit
  • the coverage percentage represents the current power of all remote units in the combined result of each remote unit.
  • the total signal coverage area of the cell here refers to the combined area of the coverage area of all remote units in the cell at the current power and the current bandwidth
  • the current bandwidth refers to the bandwidth before the remote unit is adjusted to the target bandwidth.
  • the coverage area of the remote unit under the current bandwidth is different from the coverage area of the remote unit under the target bandwidth.
  • the meaning of the total signal coverage area of the cell involved in this application refers to the union area of the coverage areas of all remote units in the cell under the current power and the current bandwidth, and the repeated parts will not be repeated.
  • Cell_ResourceUsage represents the total resource utilization of the cell
  • Cell_Coverage represents the total coverage area of the cell
  • RU_ResourceUsage i represents the resource utilization of the remote unit i
  • RU_Coverage i represents the coverage area of the remote unit i working in the target bandwidth with the current power
  • w 1 and w 2 are capacity weighting factor and coverage weighting factor, respectively
  • f represents the resource evaluation value of the combined result of each remote unit, then the resource evaluation value can be expressed as:
  • the function represents the union of the coverage area of N remote units working under the current power and target bandwidth, and the intersection area with the total signal coverage area of the cell.
  • the coverage area of the remote unit is calculated based on the location information of the remote unit, based on the signal attenuation model, and the boundary of the coverage area of the remote unit is determined to determine the power.
  • the calculation process of the total signal coverage area of the cell can be to first determine the power (-100dbm) according to the current working power, current bandwidth, and coverage area boundary of each remote unit, and obtain the coverage area of each remote unit based on the signal attenuation model. , And then the coverage area of each remote unit is combined to determine.
  • remote unit 1 and remote unit 2 have a coverage overlap area with a downlink received power greater than -100dBm.
  • the overlap area coverage area is S overlap
  • S203 Determine the remote unit corresponding to the combination result of the remote unit with the largest resource evaluation value as the remote unit in the remote unit list to be turned on; and exclude the remote units in the remote unit list to be turned on in the cell.
  • the remote unit outside is determined to be the remote unit in the list of remote units to be shut down.
  • the host unit determines the combined result of the remote unit with the largest resource evaluation value as the finally selected resource combination.
  • the host unit determines the remote unit corresponding to the remote unit combination result with the largest resource evaluation value as the remote unit in the list of remote units to be turned on. Then, in the cell, except for the remote unit in the list of remote units to be turned on. The remaining remote units other than the end units are determined to be the remote units in the remote unit list to be shut down.
  • the remote unit-level resource utilization rate and the signal coverage area of each remote unit, as well as the total coverage area of the cell determined by the relative position relationship of the remote units are selected from X remote units.
  • the required N remote unit combinations are determined to determine the list of remote units to be turned on and the list of remote units to be turned off.
  • the resource evaluation value is used as the selection criterion to ensure that the selected remote units to be turned on have access to each terminal in the cell. Better service quality, thus ensuring the effectiveness of the energy-saving program.
  • an energy-saving method which involves a specific process in which the host unit determines the corresponding terminal of each remote unit according to the signal transmission quality data reported by the terminal.
  • the above S101 step includes:
  • S301 Receive signal transmission quality data of each terminal reported by each remote unit.
  • the signal transmission quality data is a signal used to indicate the signal quality status between the remote unit and the terminal, that is, data indicating the strength of the signal quality.
  • the signal transmission quality data is the measured value of the terminal uplink reference signal or the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) channel or the preamble data obtained through the physical random access channel, that is, the sounding reference signal (SRS, Sounding Reference Signal) etc.
  • the sounding reference signal SRS, Sounding Reference Signal
  • each remote unit receives the signal transmission quality data reported by all terminals within the coverage area.
  • the coverage areas of each remote unit overlap, that is, different remote units receive the signal reported by the same terminal.
  • the host unit does not differentiate in this step, and all the quality data reported by the terminal within the coverage of the remote unit are received.
  • S302 For any terminal, determine the remote unit with the strongest signal transmission quality as the corresponding remote unit of the terminal according to the transmission quality data of the terminal reported by each remote unit.
  • the host unit compares the signal transmission quality data reported by the same terminal, and determines the corresponding remote unit with larger signal transmission quality data as the home remote unit of the terminal, Among them, the larger the signal transmission quality data, the stronger the signal transmission quality.
  • a home remote unit is determined for overlapping terminals, and the corresponding terminal of each remote unit is finally determined. It is naturally available that no terminal will appear among the determined corresponding terminals of each remote unit. Belongs to the case of two remote units.
  • S303 Determine the ratio of the amount of resources required by the corresponding terminal of each remote unit to the total resource amount of the cell as the resource utilization rate of each remote unit.
  • the ratio of the amount of resources required by the corresponding terminal of each remote unit to the total resource amount of the cell is determined as the resource utilization rate of each remote unit.
  • the host unit first screens the corresponding terminal of each remote unit before acquiring the resource utilization of each remote unit to determine that no terminal is repeatedly calculated, so that the final determined remote unit Resource utilization can be more accurate.
  • One of the application scenarios is to provide energy-saving suggestions for energy-saving according to the above-mentioned energy-saving method.
  • the embodiment process of this application scenario includes:
  • the comprehensive data information includes at least the total resource utilization rate of the cell, the resource utilization rate of each remote unit in the cell, the total signal coverage area of the cell, and the signal of each remote unit in the cell under the target bandwidth. Covered area.
  • FIG. 5a a schematic diagram of the interaction of the energy-saving modules of the distributed base station system. The following steps in this embodiment will all be described with the energy-saving module illustrated in FIG. 5a.
  • the monitoring module can be used to obtain the comprehensive data information of the cell; the comprehensive data information reflects the relevant data of the resources, traffic, etc. in the cell. These data can obtain the average value for a long time and the granularity of the time of acquisition. It can be set to hourly level, which can reflect the average level of data.
  • the comprehensive data information includes at least the total resource utilization rate of the cell, the resource utilization rate of each remote unit in the cell, the total signal coverage area of the cell, and the signal coverage area of each remote unit in the cell under the target bandwidth.
  • S402 Generate an energy-saving suggestion table according to the comprehensive data information; the energy-saving suggestion table is used to characterize the energy-saving strategy of the cell.
  • the non-real-time data analysis module through the non-real-time data analysis module, according to the comprehensive data information obtained by the monitoring module, generate the energy-saving suggestion table of the remote unit of the cell.
  • the energy-saving suggestion table is used to characterize the energy-saving strategy of the cell, and the table can include various time periods. Suggestions for turning on and off each remote unit. For example, as shown in Table 2 below, it is recommended that the remote unit 1 ⁇ 2 ⁇ 3 be turned off from 12 pm to 7 am, and it is recommended to be turned on after 7 am.
  • S403 Determine whether the current resource utilization rate and signal coverage area of each remote unit in the cell meet the energy-saving strategy in the energy-saving suggestion table.
  • the real-time energy-saving judgment module may first determine an energy-saving judgment result according to the resource utilization rate and signal coverage area of each remote unit of the cell at the current moment, using the energy-saving method provided earlier in this solution, and compare the judgment result with the non- The energy-saving strategy in the energy-saving suggestion table given by the real-time data analysis module is compared to determine whether the current resource utilization rate and signal coverage area of each remote unit meets the energy-saving strategy in the energy-saving suggestion table.
  • the real-time energy-saving judgment module sends an instruction to the real-time energy-saving execution module to notify the real-time energy-saving execution module to execute the energy-saving operation of the remote unit.
  • the real-time energy-saving execution module is notified to perform an energy-saving exit action.
  • the energy-saving method provided in this embodiment can give energy-saving suggestions based on the statistical resource data of the cell. If the resource data of the cell at the current moment meets the energy-saving suggestion, the energy-saving operation is performed, and the energy-saving operation is exited if it does not.
  • This embodiment is convenient
  • the energy-saving method provided in this application is effectively applied in practice, and the power consumption of the distributed base station can be effectively reduced.
  • FIG. 6 it is a schematic diagram of the working state of the remote unit before the energy saving is executed.
  • the default bandwidth is set to 100MHz.
  • Table 3 is the statistical results of the resource utilization rates of 8 remote units in the cell (PRB utilization rate as an example) in a certain period of time, and CASE1 to CASE4 respectively represent different degrees of cell resource occupancy.
  • the set low, medium, and high thresholds are 10%, 20%, and 25% respectively.
  • Figure 7 corresponds to CASE1.
  • the resource utilization rate of most remote units in CASE1 is 0%. It is decided to keep only remote unit 1 working, and the initial bandwidth is not adjusted.
  • Figure 8 corresponds to CASE2.
  • the resource utilization rate of most remote units in CASE2 is 1%, and the cell resource utilization rate is lower than the low threshold. It is decided to keep only remote unit 5 working, and the initial bandwidth is adjusted to 10MHz. Since the working bandwidth of the remote unit 5 is reduced and the power remains unchanged, the remote unit 5 after the bandwidth adjustment can achieve the best effect of a single remote unit working on a 10 MHz bandwidth and compensating for the coverage holes of other remote units after they are turned off.
  • Figure 9 corresponds to CASE3.
  • the cell resource utilization rate in CASE3 is higher than the low threshold and lower than the medium threshold. It is decided to keep the remote unit 4 and the remote unit 6 working, and the initial bandwidth is adjusted to 20MHz. The remote unit 4 and the remote unit 6 after the bandwidth adjustment can achieve the best effect of compensating the coverage loopholes of other remote units after they are turned off.
  • Figure 10 corresponds to CASE4.
  • the cell resource utilization rate in CASE4 is higher than the middle threshold and lower than the high threshold. It is decided to keep the remote unit 1, the remote unit 5, and the remote unit 7 to work, and the initial bandwidth is adjusted to 40MHz. The remote unit 1, the remote unit 5, and the remote unit 7 after the bandwidth adjustment can achieve the best effect of compensating the coverage holes of other remote units after they are turned off.
  • the energy-saving method provided in this application can flexibly control the shutdown and opening of the resources of each remote unit, realize the rational use of hardware resources, and reduce the entire set of distributed base stations.
  • the equipment energy consumption of the system can be seen that the energy-saving method provided in this application can flexibly control the shutdown and opening of the resources of each remote unit, realize the rational use of hardware resources, and reduce the entire set of distributed base stations.
  • the equipment energy consumption of the system can be seen that the energy-saving method provided in this application can flexibly control the shutdown and opening of the resources of each remote unit, realize the rational use of hardware resources, and reduce the entire set of distributed base stations.
  • the equipment energy consumption of the system can be seen that the energy-saving method provided in this application can flexibly control the shutdown and opening of the resources of each remote unit, realize the rational use of hardware resources, and reduce the entire set of distributed base stations. The equipment energy consumption of the system.
  • an energy-saving device including: an acquisition module 10, a first determination module 11, a second determination module 12, and an energy-saving module 13, wherein,
  • the obtaining module 10 is used to obtain the resource utilization rate of each remote unit in the cell, and the resource utilization rate indicates the proportion of the total resource amount of the cell occupied by the resources required by the remote unit;
  • the target determination module 11 is configured to determine the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to the resource utilization of each remote unit;
  • the list determining module 12 is used to determine the list of remote units to be turned off and the number of remote units to be turned on according to the resource utilization rate of each remote unit, the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on.
  • Remote unit list ;
  • the energy-saving module 13 is configured to perform energy-saving operations according to the list of remote units to be turned off, the list of remote units to be turned on, and the target bandwidth of the remote units to be turned on.
  • the above-mentioned target determination module 11 is configured to obtain the number of remote units to be turned on and the target bandwidth of the remote units to be turned on according to preset mapping rules and the total resource utilization of the cell; the total resource utilization of the cell is The sum of the resource utilization of each remote unit, and the mapping rule includes the correspondence between the total resource utilization of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the above-mentioned target determination module 11 is further configured to obtain the number of remote units to be turned on and the target of the remote units to be turned on according to the preset mapping rules and the total resource utilization rate of the cell when the preset conditions are met.
  • Bandwidth The total resource utilization rate of a cell is the sum of the resource utilization rates of each remote unit.
  • the mapping rule includes the correspondence between the total resource utilization rate of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on.
  • the foregoing preset conditions include: the number of remote units with resource utilization equal to 0 in each remote unit is less than a preset number, the total resource utilization of the cell is less than a preset high threshold, or the total resource utilization of the cell The number of remote units whose resource utilization rate in each remote unit is less than the preset high threshold is less than the preset number.
  • the total resource utilization of the cell, the target bandwidth of the remote unit to be turned on, and the number of remote units to be turned on in the foregoing mapping rule are in a proportional relationship.
  • the above-mentioned proportional relationship includes:
  • the target bandwidth of the remote unit to be turned on is the first target bandwidth, and the number of remote units to be turned on is N1;
  • the target bandwidth of the remote unit to be turned on is the second target bandwidth, and the number of remote units to be turned on is N2;
  • the target bandwidth of the remote unit to be turned on is the third target bandwidth, and the number of remote units to be turned on is N3;
  • the first target bandwidth ⁇ the second target bandwidth ⁇ the third target bandwidth; N1 ⁇ N2 ⁇ N3.
  • the above-mentioned list determination module 12 includes: a combination determination unit, a resource evaluation unit, and a list determination unit, wherein,
  • the combination determination unit is used to determine multiple remote unit combination results from all the remote units in the cell according to the number of remote units to be turned on;
  • the resource evaluation unit is used to obtain the resource evaluation value of each remote unit combination result according to the resource utilization rate of each remote unit and the signal coverage area of each remote unit under the target bandwidth; the resource evaluation value represents the combination of each remote unit The result is the degree of utilization of resources in the cell;
  • the list determining unit is used to determine the remote unit corresponding to the combined result of the remote unit with the largest resource evaluation value as the remote unit in the list of remote units to be turned on; and to exclude the remote unit in the list of remote units to be turned on from the cell
  • the remote unit other than the remote unit is determined as the remote unit in the remote unit list to be shut down.
  • the above-mentioned resource evaluation unit is specifically configured to obtain the ratio of the resource utilization rate of the remote unit in the total resource utilization rate of the cell in the combined result of each remote unit, and the percentage of the remote unit in the combined result of each remote unit.
  • the signal coverage area of the unit under the target bandwidth is the coverage proportion of the total signal coverage area of the cell; the weighted sum of the capacity proportion and the coverage proportion is determined as the resource evaluation value of the combined result of each remote unit.
  • the above-mentioned root energy saving module is specifically configured to keep the remote units in the list of remote units to be turned on and adjust the bandwidth of each remote unit in the list of remote units to be turned on to the target bandwidth; where , The power of each remote unit in the list of remote units to be turned on remains unchanged; the remote unit in the list of remote units to be turned off is turned off.
  • an energy-saving device includes: a receiving unit, a first determining unit, and a second determining unit, wherein:
  • the receiving unit is used to receive the signal transmission quality data of each terminal reported by each remote unit;
  • the terminal determining unit is configured to determine, for any terminal, the remote unit with the strongest signal transmission quality as the corresponding remote unit of the terminal according to the transmission quality data of the terminal reported by each remote unit;
  • the resource utilization determining unit is used to determine the ratio of the amount of resources required by the corresponding terminal of each remote unit to the total resource amount of the cell as the resource utilization rate of each remote unit.
  • the above-mentioned target determination module 11 is further configured to: when the total resource utilization rate of the cell is less than a preset high threshold, and the number of remote units with a resource utilization rate equal to 0 in each remote unit is greater than the preset number, All remote units with a resource utilization rate of 0 are turned off; the total resource utilization rate of the cell is the sum of the resource utilization rates of each remote unit.
  • the various modules in the energy-saving device described above can be implemented in whole or in part by software, hardware, and a combination thereof.
  • the above-mentioned modules may be embedded in the form of hardware or independent of the processor in the computer equipment, or may be stored in the memory of the computer equipment in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.
  • a computer device is provided.
  • the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 12.
  • the computer equipment includes a processor, a memory, a network interface, a display screen and an input device connected through a system bus.
  • the processor of the computer device is used to provide calculation and control capabilities.
  • the memory of the computer device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and a computer program.
  • the internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
  • the network interface of the computer device is used to communicate with an external terminal through a network connection.
  • the computer program is executed by the processor to realize an energy-saving method.
  • the display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen
  • the input device of the computer equipment can be a touch layer covered on the display screen, or it can be a button, a trackball or a touchpad set on the housing of the computer equipment , It can also be an external keyboard, touchpad, or mouse.
  • FIG. 12 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.
  • the specific computer device may Including more or fewer parts than shown in the figure, or combining some parts, or having a different arrangement of parts.
  • a computer device including a memory and a processor, a computer program is stored in the memory, and the processor implements the following steps when the processor executes the computer program:
  • the resource utilization rate of each remote unit in the cell indicates the proportion of the total resource amount of the cell occupied by the resources required by the remote unit;
  • each remote unit the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on, determine the list of remote units to be turned off and the list of remote units to be turned on for the cell;
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
  • the resource utilization rate of each remote unit in the cell indicates the proportion of the total resource amount of the cell occupied by the resources required by the remote unit;
  • each remote unit the signal coverage area of each remote unit under the target bandwidth, and the number of remote units to be turned on, determine the list of remote units to be turned off and the list of remote units to be turned on for the cell;
  • Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory may include random access memory (RAM) or external cache memory.
  • RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

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Abstract

La présente demande concerne un procédé et un appareil d'économie d'énergie, un dispositif informatique, et un support de stockage. Sur la base du taux d'utilisation de ressources de chaque unité distante dans une cellule, le nombre d'unités distantes devant être activées et les largeurs de bandes passantes cibles desdites unités distantes sont déterminées, et des régions de couverture de signal des unités distantes sous les bandes passantes cibles sont déterminées. Une liste d'unités distantes devant être arrêtées et une liste des unités distantes devant être activées dans la cellule sont en outre déterminées, puis une opération d'économie d'énergie est effectuée. Dans le procédé décrit, les largeurs de bandes passantes en marche des unités distantes dans la cellule sont ajustées de manière flexible. L'utilisation rationnelle de ressources matérielles est obtenue par sélection flexible d'unités distantes qui sont activées, et par commande de la désactivation et de l'activation de chaque unité distante, ce qui réduit la consommation d'énergie du dispositif d'un ensemble entier de systèmes de station de base. Le procédé d'économie d'énergie n'a pas besoin d'arrêter complètement la cellule, n'a pas besoin d'interagir avec des cellules voisines, et n'affecte pas la qualité de communication d'une borne d'une cellule pour subir une économie d'énergie, et est plus flexible et applicable à grande échelle.
PCT/CN2020/079021 2019-12-23 2020-03-12 Procédé et appareil d'économie d'énergie, dispositif informatique et support de stockage WO2021128596A1 (fr)

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