CN114077213B - Energy-saving control method and device - Google Patents
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- 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
Abstract
The embodiment of the application provides an energy-saving control method and device. The method comprises the following steps: acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate; wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold; and executing a turn-off operation corresponding to the turn-off condition. The embodiment of the application solves the problem that the energy-saving mode of the base station has more limitation on application scenes in the prior art.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to an energy saving control method and apparatus.
Background
With the development of science and technology, energy problems are becoming a global challenge. Saving resources, pursuing sustainable development and becoming full-ball consensus. In a wireless communication system, electric energy occupies an absolute specific weight in energy consumption, and thus, energy saving is an important task in the communication industry.
According to the statistical data, the energy consumption of the base station equipment is 90 percent, and the proportion of other equipment is less than 10 percent, so the energy saving and consumption reduction problems of the base station are urgent. Specifically, a mobile communication device base station generally includes: base transceiver station (Base Transceiver Station, BTS) equipment, antenna feed systems, transmission equipment, rectifiers, battery packs, ac distribution panels, transformers, air conditioning, environmental monitoring, and the like. Wherein the communication device power consumption is a major share, and the communication device power consumption is dependent on the number of network devices and their power consumption, and is also limited with the network load level.
In the prior art, the energy-saving mode mainly comprises symbol energy saving, carrier energy saving and channel energy saving, and the energy-saving modes have more restrictions on application scenes, and the common value is only suitable for a single application scene, such as a scene that a channel is turned off and does not support multiple carriers and a cell merging scene, and a scene that a carrier is turned off and does not support partial common coverage, so that the conventional energy-saving mode is difficult to be commonly used in various scenes.
Disclosure of Invention
The embodiment of the application provides an energy-saving control method and device, which are used for solving the problem that the energy-saving mode of a base station has more limitation on application scenes in the prior art.
In one aspect, an embodiment of the present application provides an energy saving control method, where the method includes:
acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
and executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
In another aspect, an embodiment of the present application further provides an energy saving control device, where the device includes:
An obtaining module, configured to obtain a first physical resource block PRB utilization ratio of a first cell and a second PRB utilization ratio of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
a determining module, configured to determine a shutdown condition satisfied by a first PRB utilization and the second PRB utilization;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
and the execution module is used for executing the shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
In yet another aspect, an embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps in the energy saving control method as described above when executing the computer program.
In yet another aspect, embodiments of the present application also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the energy saving control method as described above.
In the embodiment of the application, the first Physical Resource Block (PRB) utilization rate of a first cell and the second PRB utilization rate of a second cell are obtained; determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate; executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition, and supporting a scenario that carrier shutdown and channel shutdown are simultaneously effective; for the carrier turn-off operation, the carrier energy conservation of the scenes with completely and partially identical coverage is realized; and for channel shutdown operation, channel energy conservation of the RRU multi-carrier scene is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of steps of an energy saving control method according to an embodiment of the present application;
FIG. 2 is a flow chart of steps of a first example of an embodiment of the present application;
FIG. 3 is a flow chart of steps of a second example of an embodiment of the present application;
FIG. 4 is a scene graph of a third example of an embodiment of the application;
FIG. 5 is a block diagram of an energy saving control device according to an embodiment of the present application;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
Fig. 1 shows a schematic flow chart of an energy-saving control method according to an embodiment of the present application.
As shown in fig. 1, the embodiment of the present application provides an energy saving control method, optionally, the method may be applied to an operation maintenance module (Operation and Maintenance, OM) of a network side device, which may be a Base Station (BS), and in the embodiment of the present application, the method is described by taking OM as an example, and it is understood that the method may also be applied to other devices or modules.
The method comprises the following steps:
step 101, acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell.
Wherein OM obtains a physical resource block (Physical Resource Blocks, PRB) utilization of the first cell and a second PRB utilization of the second cell; the PRB utilization rate may be divided into an uplink PRB utilization rate and a downlink PRB utilization rate, where the uplink PRB utilization rate is a ratio of an actual usage number of uplink PRBs to a total number of uplink PRBs in a cell, and the downlink PRB utilization rate is a ratio of an actual usage number of downlink PRBs to a total number of uplink PRBs in a cell.
Alternatively, the total number of uplink PRBs of the cell may be obtained from OM in a radio resource control layer (Radio Resource Control, RRC) message of a medium access control layer (Media Access Control, MAC), for example, a PRB available number (u 32 ulavaildbnum) in an o_mac rrc_ue_prb_rpt message, and smoothed with a new PRB available number value of 1/4+3/4×historical PRB available number value, to calculate the total number of uplink PRBs.
When the actual usage number of the uplink PRB is calculated, the PRB usage number (u 32 UlActPrbNum) of a single user in an RRC message (O_MACCRRC_UE_PRB_RPT) is obtained, for example, the u32UlActPrbNum in the RRC message is adopted to carry out smoothing processing by adopting a 1/4 new PRB usage number value plus 3/4 PRB usage number historical value, and the sum of the actual usage numbers of all the PRBs of the user in a cell is calculated.
When the total number of downlink PRBs of a cell is calculated, for example, according to the configuration structure of the current subframe DSUDDDSUDD (S represents a synchronization signal, D represents a downlink subframe, and U represents an uplink subframe), the total number of downlink is 8×100=800 when the bandwidth of 20M (megabits) is 100 PRBs per subframe;
when the downlink PRB usage number is calculated, the PRB usage number (u 32 DlActPrbNum) of a single user in an RRC message (O_MACCRRC_UE_PRB_RPT) is obtained, and a 1/4 new PRB usage number value+3/4 PRB usage number historical value is adopted for smoothing processing, so that the sum of the actual usage numbers of all the user PRBs in the cell is calculated.
The second cell is a cell corresponding to the same remote radio frequency (Remote Radio Unit, RRU) device as the first cell, or a cell related to the neighboring cell of the first cell is a cell with partial or complete coverage.
Step 102, determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the first turn-off condition corresponds to carrier turn-off, and carrier turn-off refers to that when the number of users on the carrier is small, the users on the carrier are migrated to a target basic carrier allowed by a load, and then the carrier is turned off so as to save energy consumption. Wherein, the carrier wave and the target basic carrier wave are the same coverage or partial same coverage adjacent cell relationship between the systems in the system; the co-coverage neighbor cell refers to a cell under the same coverage as the source cell, and the partial co-coverage refers to a coverage where there is partial overlap between two cells. In general, the carrier refers to a capacity cell, namely an energy-saving cell which is energy-saving, and is a cell corresponding to a frequency point serving as a purpose of improving the capacity of the cell in a networking; the target carrier refers to a coverage cell, which is a cell corresponding to a frequency point serving as a basic coverage purpose in networking. In the embodiment of the application, when the first cell and the second cell are in a partially same coverage relationship, the carrier corresponding to the cell with smaller coverage area is a capacity carrier, namely, the cell with small coverage area is used as the capacity cell.
The first off condition includes: the relation between the PRB and the neighbor cells of the capacity cell is that the sum of the PRB utilization rates of all neighbor cells (including the capacity cell) which are partially covered or completely covered is smaller than a first starting threshold, wherein the first starting threshold is a carrier turn-off high threshold, and the PRB utilization rate sum is smaller than the first starting threshold, so that the PRB utilization rate is lower and the traffic is less at the moment; and the utilization rate of the capacity cell is lower, the PRB utilization rate of the capacity cell is lower than a second starting threshold, and when the second starting threshold is the carrier turn-off low threshold, if the turn-off condition met by the first PRB utilization rate and the second PRB utilization rate meets the first turn-off condition, the carrier turn-off is effective, and the capacity cell is turned off, namely the first cell is turned off.
The second shutdown condition includes that the first PRB utilization ratio and the second PRB utilization ratio are smaller than a third starting threshold, that is, the PRB utilization ratios of the first cell and the second cell are both lower, and at this time, energy saving can be started; the second turn-off condition corresponds to channel turn-off, which means that when the traffic load is low, the base station turns off part of the transmitting channels, thereby achieving the effect of energy saving. For example, when the traffic is small, closing the channel of the RRU by half; and when the traffic volume is increased, the channels of the RRU are all opened. In the same RRU multi-carrier scene, when the PRB utilization rate in all carriers is lower than a third starting threshold, and the third starting threshold is the channel turn-off low threshold, the channel is turned off; and when the first PRB utilization rate and the second PRB utilization rate of the cell of the same RRU device corresponding to the first cell are lower than a third starting threshold value, starting the channel to be turned off.
Step 103, performing a shutdown operation corresponding to the shutdown condition, where the shutdown operation includes a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
According to the carrier turn-off conditions satisfied by the first cell and the second cell, corresponding turn-off operations are executed, wherein the turn-off operations comprise at least one of carrier turn-off operations and channel turn-off operations; for carrier turn-off operation, supporting fully and partially co-coverage scenarios at the same time; for channel shutdown operation, supporting the same RRU multi-carrier scene; and the carrier turn-off and the channel turn-off are supported to take effect simultaneously, and the channel turn-off and the carrier turn-off can control the effective time periods respectively through the corresponding turn-on time and the corresponding turn-off time respectively.
In the embodiment of the application, the first Physical Resource Block (PRB) utilization rate of a first cell and the second PRB utilization rate of a second cell are obtained; determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate; executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition, and supporting a scenario that carrier shutdown and channel shutdown are simultaneously effective; for the carrier turn-off operation, the carrier energy conservation of the scenes with completely and partially identical coverage is realized; and for channel shutdown operation, channel energy conservation of the RRU multi-carrier scene is realized. The embodiment of the application has less limitation on application scenes, reduces the energy consumption of the base station and the mobile communication network, saves the maintenance cost of the communication network, and solves the problem that the energy-saving mode of the base station has more limitation on the application scenes in the prior art.
In an alternative embodiment, if the coverage of the second cell includes the coverage of the first cell,
the sum of the first PRB utilization rate and the second PRB utilization rate is smaller than a first starting threshold value, and the first PRB utilization rate is smaller than the second starting threshold value, then the shutdown condition met by the first PRB utilization rate and the second PRB utilization rate is the first shutdown condition, and the first cell is closed, so that when the capacity cells enter, OM calculates the sum of the second PRB utilization rates of the second cells corresponding to each capacity cell, and simultaneously records the identification number (ID) of the second cell corresponding to each capacity cell; and when the second cell enters, the OM traverses the cells of the search record, accumulates the PRB utilization rate corresponding to the second cell, judges whether the carrier turn-off high threshold is reached, and recovers the capacity cell when the carrier turn-off high threshold is reached.
In an alternative embodiment, if the shutdown operation comprises a carrier shutdown operation,
after the performing the shutdown operation corresponding to the shutdown condition, the method further includes:
determining a third cell in the second cell, wherein the relation between the third cell and the adjacent cell of the first cell is partially covered;
And if the sum of the second PRB utilization rates of the third cell is greater than or equal to the first starting threshold, stopping the carrier turn-off operation and recovering the carrier of the first cell.
When the relation between the PRB and the adjacent cells of the capacity cell is that the sum of the PRB utilization rates of all the adjacent cells which are partially covered by the capacity cell is larger than a first starting threshold, namely larger than a carrier turn-off high threshold, the PRB utilization rate is higher at the moment, the capacity cell is turned on, the carrier of the first cell is recovered, namely the use of the first cell is recovered.
As a first example, referring to fig. 2, fig. 2 shows a main application procedure of carrier shutdown in an embodiment of the present application, including the following steps:
OM first queries relevant parameters of PRB from base station Higher Layer (HL), determines PRB utilization.
Step 201, om determines whether the carrier off switch of the base station is turned on, and if so, step 202 is performed.
Step 202, determining whether the cell is a capacity cell, if so, executing step 203, otherwise, executing step 206.
In step 203, the same coverage cell information corresponding to the capacity cell is recorded, including partial same coverage and complete same coverage, and the sum of the PRB utilization rates of all coverage cells of the capacity cell is calculated.
Step 204, it is determined that the sum of the uplink PRB utilization and the downlink PRB utilization is lower than the carrier-off low threshold, and step 205 is executed at this time to close the capacity cell, so that the carrier energy saving is effective.
In step 206, it is determined that the cell is a non-capacity cell, i.e., a normal cell.
Step 207, searching whether there is a corresponding capacity cell; if so, step 208 is performed.
Step 208, determining whether there is a sum carrier of PRB utilization of the neighbor cell to turn off the high threshold, if so, executing step 209, and activating the corresponding capacity cell.
In an alternative embodiment, the obtaining the first physical resource block PRB utilization of the first cell and the second PRB utilization of the second cell includes:
acquiring cell information of bearing cells borne by at least two carriers corresponding to the RRU equipment; the bearing cell at least comprises the first cell and the second cell, and the cell information at least comprises the first PRB utilization rate and the second PRB utilization rate.
The channel shutdown operation of the embodiment of the application can be applied to the scene carried by at least two carriers, and under the multi-carrier scene of the same RRU equipment, when the PRB utilization rate of any carrier in the multi-carrier is higher than the channel shutdown high threshold, the channel is shut down for saving energy and opened; when the PRB utilization rate in all carriers is lower than the channel shutdown low threshold, the traffic is lower, and the channel energy saving can be started and the channel is closed.
In an alternative embodiment, after said performing a shutdown operation corresponding to said shutdown condition, the method comprises:
if the shutdown operation includes the channel shutdown operation, the sum of the PRB utilization rates of the cells borne by the carriers is greater than a fourth starting threshold, namely a channel shutdown high threshold; and if the load amount of the carrier exceeds the load amount threshold, stopping the channel shutdown operation.
When all carriers on the RRU are in low load, closing half channels of the RRU to save energy, and enabling the RRU to enter an energy-saving state; and when the RRU is in an energy-saving state and the carrier on the RRU is higher than Gao Menxian, opening the RRU channel, recovering the service and ensuring the normal operation of the service when the load exceeds the load threshold.
As a second example, referring to fig. 3, fig. 3 shows a main application procedure of carrier shutdown in an embodiment of the present application, including the following steps:
OM first queries relevant parameters of PRB from base station Higher Layer (HL), determines PRB utilization.
Step 301, om determines that the RRU device is currently in an energy saving state or a recovery state;
step 302, if the cell is in the energy saving state, it is determined whether the PRB utilization of the loaded cell is smaller than the channel shutdown high threshold (third starting threshold), if yes, step 306 is executed, otherwise step 303 is executed.
Step 303, determining whether the PRB utilization of the multiple carriers on the RRU is lower than the channel shutdown low threshold: if the step 304 is executed, the traffic is low, the channel can be started to save energy, and the channel is closed and counted; otherwise, step 305 is executed to zero the channel shutdown counter.
Step 306, determining whether the PRB utilization of any one of the multiple carriers is greater than a channel shutdown high threshold: if yes, step 307 is executed, if the traffic is higher, the channel is closed to save energy, the channel is restored and counted, otherwise step 308 is executed, and the channel restoration counter is cleared.
In an alternative embodiment, after the channel is closed, if an abnormal scene occurs, such as a service cell flash caused by an S1 flash fault, a service state change is sent, and at this time, a transmission cutting is triggered; if the cell is in an activated state, judging whether the cell is in a channel energy-saving state (namely a channel off state) before the state is changed, and if so, recovering the channel energy saving of the cell.
In an alternative embodiment, said performing a shutdown operation corresponding to said shutdown condition comprises:
and if the shutdown operation comprises the channel shutdown operation, and the first PRB utilization rate and the second PRB utilization rate are smaller than a third starting threshold value in the energy-saving lag time, executing the channel shutdown operation.
When the access channel is turned off, the judgment is made according to the energy-saving delay time, and in the energy-saving delay time, the first PRB utilization rate and the second PRB utilization rate are smaller than a third starting threshold, namely the cell is in a continuous low-load state, and the RRU channel is allowed to be turned off.
And when the service is in the follow-up, in the channel energy-saving delay time of the MAC layer, in a high-load state, triggering the channel to be opened. As a third example, referring to fig. 4, the energy saving hysteresis time processing mainly includes the following processes:
om determines that the cell is in a continuous low load state during a power saving hysteresis time (default 5 minutes).
The rru closes part of the channels.
And 3, within the energy-saving delay time (default 5 seconds) of the MAC layer channel, the cell is in a high-load state.
Om determines the channel that has been closed.
Rru opens the already closed channel.
In an alternative embodiment, the performing a shutdown operation corresponding to the shutdown condition includes:
and if the shutdown operation comprises the channel shutdown operation and the carrier shutdown operation, after the carrier shutdown operation is executed, determining that the first PRB utilization rate and the second PRB utilization rate meet the second shutdown condition, executing the channel shutdown operation.
If the carrier is turned off and the channel is turned off simultaneously, when the corresponding turn-off condition is met, the carrier is required to be turned on preferentially, and whether the current first PRB utilization rate and the second PRB utilization rate still meet the second turn-off condition is further judged after the carrier is turned off; if yes, the channel shutdown operation is executed, so that two energy-saving operations are ensured to be effective simultaneously.
Optionally, for channel power saving, OM may initiate a timing query PRB mechanism, such as with 1 minute as the query granularity, decide to enter a corresponding shutdown operation, or restore a device already in power saving, based on PRB results. For example, for channel shutdown operation, the PRB service condition of the terminal is queried through 1 minute granularity of an alarm clock message, judgment is made according to the distribution scene, and when the PRB of the service cell on the RRU corresponding to the cell is in low load (lower than the channel shutdown low threshold) within a period of time, half channels of the corresponding RRU are closed, so that the purpose of radio frequency energy conservation is achieved. And when a user accesses, the service of the corresponding RRU is quickly recovered. And supporting multi-carrier scene judgment, cell merging scene judgment and energy-saving recovery after abnormal operation (cutting, deactivating/activating service cells and resetting base stations). For example, when the channels are turned off, 4 channels of the 8 channels are turned off, the transmitting power of the RRU is reduced by half.
After entering the energy-saving state, the generation of the slight difference of the radio frequency power of the base station equipment can lead to the change of the power consumption, and the change of the energy consumption of the whole machine is smaller than the change of the output power. The overall power consumption change of the RRU consists of static power consumption and dynamic power consumption (different output powers and different time slot ratios), and the power consumption of each channel also has certain difference, so that the energy saving proportion of different stations is also different.
For carrier energy saving, OM can start a timing query PRB mechanism, for example, query granularity is 1 minute, and query PRB service condition of a terminal is queried through granularity of 1 minute of alarm clock information, and judgment is made according to distribution scenes. When the capacity cell is in a low-load state in a specified time, the user of the capacity cell is switched to the corresponding coverage cell, the capacity cell is deactivated, and the use of the service cell is reduced, so that the energy-saving cell is achieved. When the number of users increases, the use of the capacity cell is restored, and the corresponding user is switched to the capacity cell for work so as to enhance the use experience of the user. And the support part judges the same coverage scene, combines and shuts down (channel and carrier), and restores energy conservation after abnormal operation (cutting over, deactivating/activating a service cell and resetting a base station).
Regarding the energy consumption of carrier switching-off, the carrier switching-off is preferably applicable to the same coverage scene in the station, and only the capacity cell is switched off when the carrier switching-off is carried out. When the carrier is turned off, for the dual carrier RRU comprising the capacity cell, one carrier is reduced, and the RRU energy consumption is reduced by 10%. For the single carrier RRU containing the capacity cell, when the function is effective, the RRU energy consumption is reduced by 50 percent.
In the embodiment of the application, the first Physical Resource Block (PRB) utilization rate of a first cell and the second PRB utilization rate of a second cell are obtained; determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate; executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition, and supporting a scenario that carrier shutdown and channel shutdown are simultaneously effective; for the carrier turn-off operation, the carrier energy conservation of the scenes with completely and partially identical coverage is realized; and for channel shutdown operation, channel energy conservation of the RRU multi-carrier scene is realized. The embodiment of the application has less limitation on application scenes, reduces the energy consumption of the base station and the mobile communication network, saves the maintenance cost of the communication network, and solves the problem that the energy-saving mode of the base station has more limitation on the application scenes in the prior art.
Having described the energy-saving control method provided by the embodiment of the application, the energy-saving control device provided by the embodiment of the application is described below with reference to the accompanying drawings.
Referring to fig. 5, the embodiment of the application further provides an energy-saving control device, which comprises:
an obtaining module 501, configured to obtain a first physical resource block PRB utilization of a first cell and a second PRB utilization of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell.
The method comprises the steps that OM obtains the PRB utilization rate of a first cell and the second PRB utilization rate of a second cell; the PRB utilization rate may be divided into an uplink PRB utilization rate and a downlink PRB utilization rate, where the uplink PRB utilization rate is a ratio of an actual usage number of uplink PRBs to a total number of uplink PRBs in a cell, and the downlink PRB utilization rate is a ratio of an actual usage number of downlink PRBs to a total number of uplink PRBs in a cell.
Alternatively, the total number of uplink PRBs of the cell may be obtained from OM in the RRC message of the MAC layer, for example, the PRB available number (u 32 ulavailprbnum) in the o_mac rrc_ue_prb_rpt message, and smoothed with a new PRB available number value of 1/4+3/4×historical PRB available number value, to calculate the total number of uplink PRBs.
When the actual usage number of the uplink PRB is calculated, the PRB usage number (u 32 UlActPrbNum) of a single user in an RRC message (O_MACCRRC_UE_PRB_RPT) is obtained, for example, the u32UlActPrbNum in the RRC message is adopted to carry out smoothing processing by adopting a 1/4 new PRB usage number value plus 3/4 PRB usage number historical value, and the sum of the actual usage numbers of all the PRBs of the user in a cell is calculated.
When the total number of downlink PRBs of a cell is calculated, for example, according to the configuration structure of the current subframe DSUDDDSUDD (S represents a synchronization signal, D represents a downlink subframe, and U represents an uplink subframe), the total number of downlink is 8×100=800 when the bandwidth of 20M (megabits) is 100 PRBs per subframe;
when the downlink PRB usage number is calculated, the PRB usage number (u 32 DlActPrbNum) of a single user in an RRC message (O_MACCRRC_UE_PRB_RPT) is obtained, and a 1/4 new PRB usage number value+3/4 PRB usage number historical value is adopted for smoothing processing, so that the sum of the actual usage numbers of all the user PRBs in the cell is calculated.
The second cell is a cell corresponding to the same RRU equipment as the first cell, or a cell which is partially or completely covered by the second cell and has a neighbor relation with the first cell.
A determining module 502, configured to determine a shutdown condition satisfied by a first PRB utilization and the second PRB utilization;
Wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the first turn-off condition corresponds to carrier turn-off, and carrier turn-off refers to that when the number of users on the carrier is small, the users on the carrier are migrated to a target basic carrier allowed by a load, and then the carrier is turned off so as to save energy consumption. Wherein, the carrier wave and the target basic carrier wave are the same coverage or partial same coverage adjacent cell relationship between the systems in the system; the co-coverage neighbor cell refers to a cell under the same coverage as the source cell, and the partial co-coverage refers to a coverage where there is partial overlap between two cells. In general, the carrier refers to a capacity cell, namely an energy-saving cell which is energy-saving, and is a cell corresponding to a frequency point serving as a purpose of improving the capacity of the cell in a networking; the target carrier refers to a coverage cell, which is a cell corresponding to a frequency point serving as a basic coverage purpose in networking. In the embodiment of the application, when the first cell and the second cell are in a partially same coverage relationship, the carrier corresponding to the cell with smaller coverage area is a capacity carrier, namely, the cell with small coverage area is used as the capacity cell.
The first off condition includes: the relation between the PRB and the neighbor cells of the capacity cell is that the sum of the PRB utilization rates of all neighbor cells (including the capacity cell) which are partially covered or completely covered is smaller than a first starting threshold, wherein the first starting threshold is a carrier turn-off high threshold, and the PRB utilization rate sum is smaller than the first starting threshold, so that the PRB utilization rate is lower and the traffic is less at the moment; and the utilization rate of the capacity cell is lower, the PRB utilization rate of the capacity cell is lower than a second starting threshold, and when the second starting threshold is the carrier turn-off low threshold, if the turn-off condition met by the first PRB utilization rate and the second PRB utilization rate meets the first turn-off condition, the carrier turn-off is effective, and the capacity cell is turned off, namely the first cell is turned off.
The second shutdown condition includes that the first PRB utilization ratio and the second PRB utilization ratio are smaller than a third starting threshold, that is, the PRB utilization ratios of the first cell and the second cell are both lower, and at this time, energy saving can be started; the second turn-off condition corresponds to channel turn-off, which means that when the traffic load is low, the base station turns off part of the transmitting channels, thereby achieving the effect of energy saving. For example, when the traffic is small, closing the channel of the RRU by half; and when the traffic volume is increased, the channels of the RRU are all opened. In the same RRU multi-carrier scene, when the PRB utilization rate in all carriers is lower than a third starting threshold, and the third starting threshold is the channel turn-off low threshold, the channel is turned off; and when the first PRB utilization rate and the second PRB utilization rate of the cell of the same RRU device corresponding to the first cell are lower than a third starting threshold value, starting the channel to be turned off.
An execution module 503, configured to execute a shutdown operation corresponding to the shutdown condition, where the shutdown operation includes a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
According to the carrier turn-off conditions satisfied by the first cell and the second cell, corresponding turn-off operations are executed, wherein the turn-off operations comprise at least one of carrier turn-off operations and channel turn-off operations; for carrier turn-off operation, supporting fully and partially co-coverage scenarios at the same time; for channel shutdown operation, supporting the same RRU multi-carrier scene; and the carrier turn-off and the channel turn-off are supported to take effect simultaneously, and the channel turn-off and the carrier turn-off can control the effective time periods respectively through the corresponding turn-on time and the corresponding turn-off time respectively.
In an alternative embodiment, the determining module 502 includes:
a first determining sub-module for, if the coverage of the second cell includes the coverage of the first cell,
and if the sum of the first PRB utilization rate and the second PRB utilization rate is smaller than a first starting threshold and the first PRB utilization rate is smaller than the second starting threshold, the shutdown condition met by the first PRB utilization rate and the second PRB utilization rate is the first shutdown condition.
In an alternative embodiment, if the shutdown operation comprises a carrier shutdown operation,
the apparatus further comprises:
the carrier recovery module is used for determining a third cell in the second cell, and the adjacent cell relationship between the third cell and the first cell is partially co-coverage;
and if the sum of the second PRB utilization rates of the third cell is greater than or equal to the first starting threshold, stopping the carrier turn-off operation and recovering the carrier of the first cell.
In an alternative embodiment, the obtaining module 501 includes:
an obtaining sub-module, configured to obtain cell information of a bearing cell carried by at least two carriers corresponding to the RRU device; the bearing cell at least comprises the first cell and the second cell, and the cell information at least comprises the first PRB utilization rate and the second PRB utilization rate.
In an alternative embodiment, the apparatus includes:
and the channel recovery module is used for stopping the channel shutdown operation if the shutdown operation comprises the channel shutdown operation, the sum of PRB utilization rates of cells borne by the carrier is larger than a fourth starting threshold, and the load quantity of the carrier exceeds a load quantity threshold.
In an alternative embodiment, the executing module 503 includes:
and the first execution submodule is used for executing the channel shutdown operation if the shutdown operation comprises the channel shutdown operation and the first PRB utilization rate and the second PRB utilization rate are smaller than a third starting threshold value within the energy-saving delay time.
In an alternative embodiment, the executing module 503 includes:
and the second execution sub-module is used for executing the channel shutdown operation if the shutdown operation comprises the channel shutdown operation and the carrier shutdown operation, and after the carrier shutdown operation is executed, the first PRB utilization rate and the second PRB utilization rate are determined to meet the second shutdown condition.
The energy-saving control device provided by the embodiment of the present application can implement each process implemented at the base station side in the method embodiments of fig. 1 to fig. 4, and in order to avoid repetition, a detailed description is omitted here.
In the embodiment of the present application, the acquisition module 501 acquires a first physical resource block PRB utilization of a first cell and a second PRB utilization of a second cell; the determining module 502 determines a shutdown condition that the first PRB utilization and the second PRB utilization meet; the executing module 503 executes a shutdown operation corresponding to the shutdown condition, where the shutdown operation includes a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition, and supports a scenario in which carrier shutdown and channel shutdown take effect simultaneously; for the carrier turn-off operation, the carrier energy conservation of the scenes with completely and partially identical coverage is realized; and for channel shutdown operation, channel energy conservation of the RRU multi-carrier scene is realized. The embodiment of the application has less limitation on application scenes, reduces the energy consumption of the base station and the mobile communication network, saves the maintenance cost of the communication network, and solves the problem that the energy-saving mode of the base station has more limitation on the application scenes in the prior art.
In another aspect, an embodiment of the present application further provides an electronic device, including a memory, a processor, a bus, and a computer program stored in the memory and capable of running on the processor, where the processor executes the program to implement the steps in the energy saving control method.
For example, fig. 6 shows a schematic physical structure of an electronic device.
As shown in fig. 6, the electronic device may include: processor 610, communication interface (Communications Interface) 620, memory 630, and communication bus 640, wherein processor 610, communication interface 620, and memory 630 communicate with each other via communication bus 640. The processor 610 may call logic instructions in the memory 630 to perform the following methods:
acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate;
Wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
and executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
Further, the logic instructions in the memory 630 may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In still another aspect, an embodiment of the present application further provides a computer readable storage medium having stored thereon a computer program that is implemented when executed by a processor to perform the energy saving control method provided in the above embodiments, for example, including:
acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
and executing a shutdown operation corresponding to the shutdown condition, wherein the shutdown operation comprises a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. A method of energy conservation control, the method comprising:
acquiring a first Physical Resource Block (PRB) utilization rate of a first cell and a second PRB utilization rate of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
determining a shutdown condition satisfied by a first PRB utilization rate and the second PRB utilization rate;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
Performing a shutdown operation corresponding to the shutdown condition, the shutdown operation including a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition;
the obtaining the first physical resource block PRB utilization of the first cell and the second PRB utilization of the second cell includes:
acquiring cell information of bearing cells borne by at least two carriers corresponding to the RRU equipment; the bearing cell at least comprises the first cell and the second cell, and the cell information at least comprises the first PRB utilization rate and the second PRB utilization rate.
2. The method of claim 1, wherein if the coverage of the second cell includes the coverage of the first cell,
and if the sum of the first PRB utilization rate and the second PRB utilization rate is smaller than a first starting threshold and the first PRB utilization rate is smaller than the second starting threshold, the shutdown condition met by the first PRB utilization rate and the second PRB utilization rate is the first shutdown condition.
3. The power saving control method according to claim 1, wherein, if the turn-off operation includes a carrier turn-off operation,
After the performing the shutdown operation corresponding to the shutdown condition, the method further includes:
determining a third cell in the second cell, wherein the relation between the third cell and the adjacent cell of the first cell is partially covered;
and if the sum of the second PRB utilization rates of the third cell is greater than or equal to the first starting threshold, stopping the carrier turn-off operation and recovering the carrier of the first cell.
4. The energy saving control method according to claim 1, characterized in that after the execution of the shutdown operation corresponding to the shutdown condition, the method includes:
and if the shutdown operation comprises the channel shutdown operation, the sum of PRB utilization rates of cells borne by the carrier is larger than a fourth starting threshold, and the load quantity of the carrier exceeds a load quantity threshold, stopping the channel shutdown operation.
5. The energy saving control method according to claim 1, characterized in that the performing the shutdown operation corresponding to the shutdown condition includes:
and if the shutdown operation comprises the channel shutdown operation, and the first PRB utilization rate and the second PRB utilization rate are smaller than a third starting threshold value in the energy-saving lag time, executing the channel shutdown operation.
6. The energy saving control method according to claim 1, characterized in that the performing the shutdown operation corresponding to the shutdown condition includes:
and if the shutdown operation comprises the channel shutdown operation and the carrier shutdown operation, after the carrier shutdown operation is executed, determining that the first PRB utilization rate and the second PRB utilization rate meet the second shutdown condition, executing the channel shutdown operation.
7. An energy saving control device, characterized in that the device comprises:
an obtaining module, configured to obtain a first physical resource block PRB utilization ratio of a first cell and a second PRB utilization ratio of a second cell; the second cell is a cell corresponding to the same remote radio frequency RRU equipment as the first cell, or a cell which is partially or completely covered by the adjacent cell of the first cell;
a determining module, configured to determine a shutdown condition satisfied by a first PRB utilization and the second PRB utilization;
wherein the off condition comprises a first off condition and/or a second off condition; the first shutdown condition includes that a sum of the first PRB utilization and the second PRB utilization is less than a first starting threshold, and the first PRB utilization is less than a second starting threshold; the second shutdown condition includes the first PRB utilization and the second PRB utilization being less than a third starting threshold;
An execution module, configured to execute a shutdown operation corresponding to the shutdown condition, where the shutdown operation includes a carrier shutdown operation corresponding to the first shutdown condition and/or a channel shutdown operation corresponding to the second shutdown condition;
the acquiring module is specifically configured to acquire cell information of a bearing cell carried by at least two carriers corresponding to the RRU device; the bearing cell at least comprises the first cell and the second cell, and the cell information at least comprises the first PRB utilization rate and the second PRB utilization rate.
8. The energy saving control device of claim 7, wherein the determination module comprises:
a first determining sub-module for, if the coverage of the second cell includes the coverage of the first cell,
and if the sum of the first PRB utilization rate and the second PRB utilization rate is smaller than a first starting threshold and the first PRB utilization rate is smaller than the second starting threshold, the shutdown condition met by the first PRB utilization rate and the second PRB utilization rate is the first shutdown condition.
9. The energy saving control device of claim 7, wherein if the turn-off operation comprises a carrier turn-off operation,
The apparatus further comprises:
the carrier recovery module is used for determining a third cell in the second cell, and the adjacent cell relationship between the third cell and the first cell is partially co-coverage;
and if the sum of the second PRB utilization rates of the third cell is greater than or equal to the first starting threshold, stopping the carrier turn-off operation and recovering the carrier of the first cell.
10. The energy saving control device of claim 8, wherein the device comprises:
and the channel recovery module is used for stopping the channel shutdown operation if the shutdown operation comprises the channel shutdown operation, the sum of PRB utilization rates of cells borne by the carrier is larger than a fourth starting threshold, and the load quantity of the carrier exceeds a load quantity threshold.
11. The energy saving control device of claim 7, wherein the execution module comprises:
and the first execution submodule is used for executing the channel shutdown operation if the shutdown operation comprises the channel shutdown operation and the first PRB utilization rate and the second PRB utilization rate are smaller than a third starting threshold value within the energy-saving delay time.
12. The energy saving control device of claim 7, wherein the execution module comprises:
And the second execution sub-module is used for executing the channel shutdown operation if the shutdown operation comprises the channel shutdown operation and the carrier shutdown operation, and after the carrier shutdown operation is executed, the first PRB utilization rate and the second PRB utilization rate are determined to meet the second shutdown condition.
13. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, characterized in that the computer program when executed by the processor implements the steps of the energy saving control method according to any one of claims 1 to 6.
14. A computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the energy saving control method according to any one of claims 1 to 6.
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