WO2022105671A1 - 基站节能的控制方法和装置、计算机可读存储介质 - Google Patents

基站节能的控制方法和装置、计算机可读存储介质 Download PDF

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Publication number
WO2022105671A1
WO2022105671A1 PCT/CN2021/130137 CN2021130137W WO2022105671A1 WO 2022105671 A1 WO2022105671 A1 WO 2022105671A1 CN 2021130137 W CN2021130137 W CN 2021130137W WO 2022105671 A1 WO2022105671 A1 WO 2022105671A1
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Prior art keywords
time slot
base station
turn
threshold value
energy saving
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PCT/CN2021/130137
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English (en)
French (fr)
Inventor
未平
郭诚
王国争
周将运
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中兴通讯股份有限公司
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Priority to US18/253,549 priority Critical patent/US20230422166A1/en
Priority to EP21893818.1A priority patent/EP4236479A4/en
Publication of WO2022105671A1 publication Critical patent/WO2022105671A1/zh

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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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • 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

  • the present application relates to the field of communication technologies, and in particular, to a control method and apparatus for power saving of a base station, and a computer-readable storage medium.
  • 5G 5th Generation Mobile Networks
  • 4G or 5G terminals Users continue to grow, and the communication network is under the influence of terminal growth, which also brings high business pressure.
  • new services such as high-definition video, mobile games, etc.
  • Various demands have increased the dense arrangement of more base stations, which easily leads to the following problems: the high power consumption and high-density arrangement of 5G base stations cause high energy consumption; the inter-cell interference caused by the high-density arrangement of base stations affects communication quality.
  • the embodiments of the present application provide a control method and apparatus for energy saving of a base station, and a computer-readable storage medium, so as to realize energy saving of a base station.
  • a first aspect of the embodiments of the present application provides a method for controlling energy saving of a base station, including: acquiring service data of the base station;
  • a second aspect of the embodiments of the present application provides a control device for energy saving of a base station, comprising: an acquisition module configured to acquire service data of the base station; and a trigger module configured to trigger the corresponding service data satisfying the trigger condition.
  • the base station enters an energy-saving state;
  • the calculation module is configured to calculate the traffic load of the base station entering the energy-saving state;
  • the control module is set to be between the calculated traffic load and a preset time slot threshold value relationship to control the turn-off or turn-on of the corresponding time slot.
  • a third aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute: the base station as described above Energy saving control method.
  • FIG. 1 is a schematic diagram of an application scenario of a control method for power saving of a base station provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a control method for power saving of a base station provided by the first embodiment of the present application.
  • FIG. 3 is a flowchart of step 203 of FIG. 2 .
  • FIG. 4 is a schematic diagram of a shutdown bitmap obtained in a method for controlling energy saving of a base station provided by the second embodiment of the present application.
  • FIG. 5 is a flowchart of obtaining a shutdown bitmap in a method for controlling energy saving of a base station provided by the second embodiment of the present application.
  • FIG. 6 is a flowchart of obtaining a shutdown bitmap in a method for controlling energy saving of a base station provided by the third embodiment of the present application.
  • FIG. 7 is a flowchart of an application scenario of a control method for power saving of a base station provided by an embodiment of the present application.
  • 5G 5th generation mobile networks or 5th generation wireless systems, 5th-Generation, fifth-generation mobile communication technology: 5G or 5G technology for short; Extension after 3G (UMTS, LTE) and 2G (GSM) systems.
  • UMTS 3G
  • GSM 2G
  • the performance goals of 5G are high data rates, reduced latency, energy savings, lower costs, increased system capacity, and massive device connectivity.
  • LTE Long Term Evolution, Long Term Evolution: The long term evolution of the UMTS (Universal Mobile Telecommunications System, Universal Mobile Telecommunications System) technical standard formulated by the 3GPP (the 3rd Generation Partnership Project, 3rd Generation Partnership Project).
  • PCI Physical-layer Cell Identity, physical cell identity: is the physical cell ID, which is used to uniquely identify a cell.
  • Time slot It is the smallest unit of circuit switching summary information transmission. It is a time slice in time division multiplexing mode (TDM), which is dedicated to a part of serial self-multiplexing of time slot information of a single channel.
  • TDM time division multiplexing mode
  • PRB Physical Resource Block, Physical Resource Block: refers to the resources of 12 consecutive carriers in the frequency domain, and the resources of one time slot in the time domain.
  • Bitmap Turn off bitmap, also known as bitmap.
  • NR refers to 5G NR, which supports multiple subcarrier spacings.
  • Frame format refers to the format of different frames specified by the protocol.
  • Broadcast channel refers to the information channel that transmits information by broadcasting.
  • the energy consumption of the access network accounts for the vast majority of the energy consumption of the entire communication network.
  • Common energy-saving technologies include: device-level energy saving, selecting low-power devices, and reasonably applying the low-power mode of the device during idle periods of business to improve the power amplifier. Efficiency of other devices, etc.; device-level energy saving, considering the tidal effect of 2/3/4G/WLAN system service load in time and space, providing symbols, time slots, channels, carrier frequencies and other granularity for different application scenarios, flexible and flexible power-off control strategy; network-level energy saving, according to the characteristics of 2/3/4G/WLAN system, realize the cooperative energy saving between WLAN network and cellular network.
  • the network-level energy saving is mainly aimed at the scenario of overlapping coverage of cells, by activating the sleep function of the small base station under low load, so that the whole station enters the low power consumption mode to achieve the purpose of saving power.
  • the method for controlling energy saving of a base station can be applied to a terminal, a server, or software running in the terminal or the server.
  • the terminal may be a smart phone, a tablet computer, a notebook computer, a desktop computer, a smart watch, etc.
  • the server side may be configured as an independent physical server, or may be configured as a server cluster or distributed server composed of multiple physical servers
  • the system can also be configured to provide basic cloud computing such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.
  • the cloud server of the service; the software may be the application of the control method for realizing the energy saving of the base station, etc., but is not limited to the above forms.
  • the control method for energy saving of a base station according to the embodiment of the present application is applied to a network system.
  • the network system includes a base station and a cell, and network communication can be performed between the base station and the cell.
  • Communication equipment such as computers, televisions, and telephones can be installed in the community.
  • FIG. 2 is a flowchart of a control method for power saving of a base station provided by an embodiment of the present application.
  • the method in FIG. 2 includes steps 201 to 204 .
  • Step 201 acquiring service data of a base station
  • Step 202 Trigger the base station corresponding to the service data satisfying the trigger condition to enter the energy saving state
  • Step 203 Calculate the service load corresponding to the base station entering the energy-saving state
  • Step 204 Control to turn off or turn on the corresponding time slot according to the relationship between the calculated traffic load and the preset time slot threshold value.
  • the service data may include, but is not limited to, the PRB utilization rate, the number of users, the priority of the current service, and the time period.
  • the service data of the base station includes: PRB utilization rate, the number of users currently connected to the base station, the current service priority, and the time period.
  • step 201 of the embodiment of the present application the acquired trigger condition is used to trigger the base station to enter the energy-saving state, and if the base station enters the energy-saving state, step 202 is performed.
  • the service data satisfying the trigger condition may include, but is not limited to including: the number of users is lower than the user threshold, the preset high-priority service currently does not exist, the current time period for the preset energy saving period.
  • the energy-saving state refers to a state in which some time slots are turned off according to actual needs, and all services are aggregated to the time slots that are not turned off for scheduling.
  • the PRB utilization rate refers to the downlink PRB utilization rate. If the downlink PRB utilization rate is lower than the time slot turn-off threshold, it indicates that the traffic load is low. Therefore, the base station turns off some time slots and turns off all The services are aggregated to the time slots that are not turned off for scheduling, so as to achieve the effect of energy saving; if the downlink PRB utilization rate is higher than the time slot opening threshold, it indicates that the traffic load increases, so the base station needs to open the time slots that have been turned off. , restart scheduling.
  • the preset high-priority services can be set according to actual needs. For example, live streaming services and game services are set as high-priority services; while web browsing services and email sending and receiving services are set as low-priority services. It can be understood that, if one of the following conditions is not met, the energy saving state is exited: the number of users is lower than the user threshold, the current time is within the preset energy saving period, and there is no preset high-priority service.
  • the traffic load amount includes a filter value
  • the filter value refers to a filter value corresponding to the PRB utilization rate.
  • the filter value of the PRB utilization rate is a filter value of the downlink PRB utilization rate. Since the service data of each cycle may change greatly during the actual scheduling, in order to prevent the inaccurate statistics of the PRB utilization due to such large changes, when the PRB utilization of the current cycle is counted, the previous The PRB utilization in several cycles is weighted and calculated as the PRB utilization of the current cycle.
  • FIG. 3 is a flowchart of step 203 provided by an embodiment of the present application. The steps in FIG. 3 include steps 301 to 303 .
  • Step 301 calculate the PRB utilization rate of each time slot under the available bandwidth
  • Step 302 Calculate the average PRB utilization rate of the activated time slot in the energy saving period according to all the calculated PRB utilization rates
  • Step 303 Calculate the filter value according to the calculated average PRB utilization.
  • the PRB utilization rate is the downlink PRB utilization rate, which is also the current downlink PRB utilization rate; in step 301, after the base station enters the energy-saving state, it calculates the PRB utilization rate of each time slot under the available bandwidth, including:
  • the current PRB utilization rate is equal to the number of PRBs scheduled in the previous timeslot divided by the number of available PRBs in the current timeslot; specifically, the formula for calculating the PRB utilization rate in step 301 is shown in formula (1):
  • P p_n is the PRB utilization rate of the current timeslot, that is, the PRB utilization rate of the current n-th activated downlink timeslot
  • Ps is the number of PRBs scheduled in the current timeslot
  • Pa is the number of available PRBs in the current timeslot.
  • step 302 the formula for calculating the average PRB utilization rate of the activated time slot in the energy saving period according to all the calculated PRB utilization rates is as shown in formula (2):
  • P avg is the average PRB utilization rate of the activated time slot in the energy saving period
  • N is the total number of activated time slots in the energy saving period
  • P p_n is the PRB utilization rate of the n-th activated time slot.
  • step 303 the formula for calculating the filter value according to the calculated average PRB utilization rate is as shown in formula (3):
  • P f is the filter value
  • ⁇ is the filter coefficient, which can be configured as needed
  • the value range of ⁇ is a decimal between 0 and 1
  • P p_n is the PRB utilization rate of the nth active time slot
  • P p_n is PRB utilization for the n-1th active slot.
  • the time slot threshold value includes a time slot off threshold value and a time slot open threshold value
  • the relationship between the filter value and the preset time slot threshold value includes:
  • the filter value is greater than the preset time slot opening threshold, or
  • the filter value is within the range of the time slot off threshold value and the time slot open threshold value. Wherein, the time slot off threshold value is smaller than the time slot open threshold value.
  • step 204 includes:
  • M time slots are controlled to be turned off; where M is an integer from 1 to 99; the value of M represents the granularity of the turn-off time slot, and the value of M and The energy-saving period is related. If the value of M is too large, the system will not converge, and if the value of M is too small, the response of the system will be slow.
  • the time-slot turn-off strategy is entered, that is, the PRB utilization rate is calculated and calculated periodically, and the duration of the cycle can be set to: not limited to Integer multiple of NR radio frame. For example, if the period of the NR radio frame is 10ms, the duration of the period can be set to: 20ms, 30ms, 40ms, and so on.
  • the base station closes some downlink time slots (for example, M time slots are closed), and all current services are closed. Aggregate to unclosed time slots for scheduling, so as to achieve the effect of energy saving.
  • the off-slot strategy also includes:
  • the number of time slots to be turned off in the next energy saving cycle is controlled to be M;
  • P next1 is the PRB utilization rate after continuing to turn off M time slots in the next energy-saving period
  • P f is the filter value
  • N is the total number of activated downlink time slots in the energy-saving period
  • M is the continuous downlink time slot in the next energy-saving period. Number of time slots to turn off.
  • OffNUM n+1 OffNUM n +M Formula (5)
  • OffNUM n+1 is the number of downlink time slots turned off in the next energy saving cycle
  • the initial value of OffNUM n+1 is set to 0
  • NUM n is the number of downlink time slots turned off in the current energy saving cycle.
  • Step 204 also includes:
  • the duration of the cycle can be set as: including but not limited to NR Integer multiples of radio frames.
  • the base station when the filter value is greater than the preset time slot opening threshold, that is, when it is detected that the traffic load increases, the base station reopens the closed time slots (for example, reopens L time slots), so that the Reschedule.
  • the open time slot policy also includes:
  • M timeslots have been turned off in the current energy-saving period
  • L timeslots have been opened in the current energy-saving period
  • M-L M-L
  • the number of time slots that are turned off in the next energy-saving cycle M-L-L, and so on, the calculation formula is shown in formula (7);
  • OffNUM n+1 OffNUM n -L Formula (7)
  • OffNUM n+1 is the number of downlink time slots turned off in the next energy saving cycle
  • the initial value of OffNUM n+1 is set to 0
  • NUM n is the number of downlink time slots turned off in the current energy saving cycle.
  • Step 204 also includes:
  • the filter value is within the range of the time slot off threshold value and the time slot open threshold value, the number of currently opened time slots is controlled to remain unchanged.
  • the filter value is within the range of the time slot off threshold value and the time slot open threshold value, including:
  • the filter value is greater than or equal to the time slot turn-off threshold
  • the filter value is less than or equal to the slot opening threshold.
  • the filter value is within the range of the time slot turn-off threshold value and the time slot open threshold value, the time slot is neither turned off nor re-opened, and the number of time slots that have been opened at present remains unchanged. .
  • the control method for energy saving of a base station provided by the embodiment of the present application, by acquiring the service data of the base station, triggering the base station corresponding to the service data satisfying the trigger condition to enter the energy saving state, and calculating the filter value of the base station entering the energy saving state, so as to obtain the energy saving state according to the calculated
  • the base station closes some downlink time slots (for example, closes M time slots), and aggregates all the current services to the time slots that are not closed for scheduling, so as to achieve the effect of energy saving.
  • a set of time slot turn-off bitmaps (Bitmap) are maintained in the cell, and the period length of the turn-off bitmap is set according to actual needs, which can be, but is not limited to, be set as: Integer multiples of frames. For example, if the period of the NR radio frame is 10ms, the duration of the period can be set to: 20ms, 30ms, 40ms, and so on.
  • Figure 4 illustrates the turn-off bitmap. The detailed description will be given later with reference to FIG. 5 and FIG. 6 .
  • different frame formats refer to the turn-off bitmaps of time slots of different structures, and the turn-off sequence is from left to right, first off and then on; number the turn-off bitmaps, identify the common channel configuration of the cell, and turn on the corresponding number The time slot configured for the common channel of the cell, so that other services can be scheduled normally for the opened time slot.
  • maintaining the shutdown bitmap of the corresponding time slot includes steps 501 to 503:
  • Step 501 maintaining the shutdown bitmap of the corresponding time slot according to the frame format
  • Step 502 number the shutdown bitmap
  • Step 503 Identify the broadcast channel configuration of the cell, and open the time slot corresponding to the broadcast channel configuration. Identify the broadcast channel configuration of the cell, and open the time slot corresponding to the broadcast channel configuration.
  • step 502 the principle of numbering the shutdown bitmaps is that the sequence is randomly shuffled, so that the scheduling delay can be prevented from being affected by centralized shutdown.
  • step 503 the broadcast channel configuration of the cell is identified, and the time slot corresponding to the broadcast channel configuration is opened, so that other services can be normally scheduled for the opened time slot.
  • the time slot configured by the LTE broadcast channel needs to be opened, so that other services can be scheduled normally for the opened time slot.
  • maintaining the shutdown bitmap of the corresponding time slot includes:
  • Step 601 obtaining a cell-level shutdown bitmap
  • Step 603 Turn off or turn off the time slot of the bitmap according to the time domain offset.
  • a cell-level time slot shutdown bitmap is obtained, including:
  • step 602 according to the turn-off bitmap obtained from step 601, three new turn-off bitmaps are obtained after performing cyclic shift according to the time domain offset, and two adjacent new turn-off bitmaps are obtained.
  • the interval between the starting points of the off bitmap is denoted as Slot_offset, the off bitmap is cyclically shifted, and the lengths are equal; among them, the formula for the interval Slot_offset between the starting points of two adjacent new off bitmaps is as shown in formula (8). Show;
  • length(bitmap) represents the length of the off bitmap.
  • 2 radio frames have a total of 40 time slots, namely: time slot S0, time slot S1, time slot S2, time slot S3, time slot S4, time slot S5, ..., time slot S22, Time slot S23, time slot 24, time slot S5, time slot S25, time slot S26, ..., time slot S37, time slot S38, time slot S39, after performing cyclic shift according to the time domain offset, three new Turn-off bitmap: time slot S0 to time slot S13, time slot S13 to time slot S26, time slot S26 to time slot S39, so that the turn-off bitmap of the first new time slot is time slot S0 to time slot S39 , the turn-off bitmap of the second new time slot is time slot S13 to time slot S39 plus time slot S0 to time slot S12, and the turn-off bitmap of the third new time slot is time slot S26 to time slot S39 plus time slot S39 From time slot S0 to time slot S25.
  • step 602 by taking the modulo 3 calculation of the PCI number of the cell, the time domain offset of the corresponding cell in the shutdown bitmap is obtained as Slot_offset*mod(PCI, 3), and each PCI cell is obtained
  • the shutdown bitmap used where:
  • PCI modulo 3 is equal to 1, then the start offset of the turn-off bitmap of the time slot is 1*Slot_offset;
  • PCI modulo 3 is equal to 2, then the start offset of the turn-off bitmap of the time slot is 2*Slot_offset;
  • step 603 when turning off or turning on the turn-off bitmap according to the time domain offset, the turn-off bitmap is operated from left to right, first off and then on, with reference to the turn-off principle. It will be further described below with reference to FIG. 4 .
  • time slot S0 time slot S1, time slot S2, time slot S3, time slot S4, Time slot S5,..., time slot S22, time slot S23, time slot 24, time slot S5, time slot S25, time slot S26,..., time slot S37, time slot S38, time slot S39 (not shown) ;
  • the start offset of the turn-off bitmap of the time slot is 2*Slot_offset;
  • time slot S25, the time slot S24, ... and the time slot S26 are opened sequentially from right to left.
  • the modulo calculation is performed on the PCI number of the cell, according to the difference of the calculation result and the difference in the number of carriers, to correspond to different time slot offsets, and according to the different PCI number of the cell, different results correspond to different time slots Offset, and the starting timeslots of different cell scheduling time slots are different, maintain each cell's own shutdown bitmap, the cells are independent of each other, the time domain is staggered, and the time-sharing staggered scheduling can effectively suppress inter-cell signal interference .
  • the control method for energy saving of a base station proposed in the embodiment of the present application, by acquiring the service data of the base station, triggering the base station corresponding to the service data satisfying the trigger condition to enter the energy saving state, and calculating the service load of the base station entering the energy saving state, so as to calculate The relationship between the output traffic load and the preset time slot threshold value, control to turn off or open the corresponding time slot, for example, when the traffic load is less than the preset time slot turn off threshold value, that is, when the service When the traffic load is low, the base station closes some downlink time slots (for example, M timeslots), and aggregates all the current services to the unclosed time slots for scheduling, so as to achieve the effect of energy saving.
  • some downlink time slots for example, M timeslots
  • the number of time slots opened in the energy-saving period is determined by the statistics of the service load, so that the service can be aggregated in the time domain, and the frequency domain resources can be expanded for scheduling. So as to achieve the effect of energy saving and consumption reduction.
  • the embodiment of the present application also performs modulo calculation on the PCI number of the cell, according to the difference of the calculation result and the difference in the number of carriers, to correspond to different time slot offsets, and according to the different PCI number of the cell, different results correspond to different time slots
  • the initial time slot of the scheduling time slot in different cells is different, and each cell's own shutdown bitmap is maintained.
  • the base station closes some downlink time slots, and aggregates all the services to the unclosed time slots for scheduling, so as to achieve the effect of energy saving.
  • the closed time slot is opened and the scheduling is restarted.
  • different time slots are opened for scheduling, so as to suppress signal interference between cells in the time domain.
  • Common energy-saving methods include: carrier shutdown, antenna channel shutdown, and intelligent shutdown.
  • Common energy-saving methods have the following shortcomings: the shutdown or startup action is relatively slow, and the response is not timely enough. It cannot be turned on in real time; the shutdown method is rough, affecting service coverage; the base station in the "hot spot" area (the area where multiple communication devices use network communication intensively) may never be able to enter the energy-saving state; there are limitations, the suppression effect is limited, and it is not suitable for Equipped with all types of base stations.
  • the energy-saving methods proposed in the embodiments of the present application can respond dynamically in real time around the clock, respond quickly, adjust the status according to the current service of the base station, do not affect coverage, adapt to all types of base stations, and can effectively suppress inter-cell communication. interference.
  • different frame formats refer to the turn-off bitmaps of time slots of different structures.
  • the turn-off sequence is from left to right, and turns off first and then turns on; identifies the common channel configuration of the cell and turns on the time slot.
  • other services can be scheduled normally for the open time slot; for the mixed-mode scenario, the time slot of the LTE broadcast channel position needs to be opened, and the open time slot can be scheduled normally.
  • Other services According to the different cell attributes (cell PCI number), according to the difference of the PCI number and the number of carriers, the corresponding time slot offset in the time domain is performed between the cells, and each cell's own shutdown bitmap is maintained.
  • the cells are independent of each other and the time domain is staggered, which can effectively suppress the signal interference between cells when the traffic load is low.
  • FIG. 7 is a flowchart of an application scenario of the control method for power saving of a base station provided by an embodiment of the present application.
  • the method in FIG. 7 includes steps 701 to 708 .
  • Step 701 determine whether the trigger condition is met; if the trigger condition is met, enter the energy saving state, and execute step 702; otherwise, execute step 708;
  • Step 702 calculate the filter value
  • Step 703 determine the relationship between the filter value and the preset time slot threshold value, if the filter value is less than the preset time slot turn-off threshold value, then perform step 704; if the filter value of the PRB utilization rate is greater than the preset value If the time slot opening threshold value, then go to step 705; otherwise, go to step 706;
  • Step 704 control the number of turn-off time slots to be M; then perform step 707;
  • Step 705 control the number of open time slots to be L; then perform step 707;
  • Step 706 control the number of open time slots to remain unchanged; then perform step 707;
  • Step 707 maintaining the time slot offset, and obtaining a shutdown bitmap corresponding to each cell
  • Step 708 exit the energy saving state.
  • different frame formats refer to the turn-off bitmaps of time slots of different structures.
  • the turn-off sequence is from left to right, and turns off first and then turns on; identifies the common channel configuration of the cell and turns on the time slot.
  • other services can be scheduled normally for the open time slot; for the mixed-mode scenario, the time slot of the LTE broadcast channel location needs to be opened, and the open time slot can be scheduled normally.
  • Other services According to the different cell attributes (PCI number) and the number of carriers, the corresponding time-domain time slot offset is performed, and each cell's own shutdown bitmap is maintained. The cells are independent of each other and the time domain is staggered. , which can effectively suppress inter-cell signal interference when the service load is low.
  • the embodiment of the present application further provides a control device for energy saving of a base station, which can realize the above-mentioned control method for energy saving of a base station, and the device includes:
  • an acquisition module configured to acquire service data of the base station
  • a trigger module configured to trigger the base station corresponding to the service data satisfying the trigger condition to enter the energy saving state
  • a calculation module configured to calculate the service load corresponding to the base station entering the energy-saving state
  • the control module is set to control to turn off or turn on the corresponding time slot according to the relationship between the calculated traffic load and the preset time slot threshold value.
  • the embodiment of the present application further provides a control device for energy saving of a base station according to another embodiment, including:
  • the program is stored in the memory, and the processor executes the at least one program to implement the above-mentioned control method for power saving of a base station in the disclosed embodiment.
  • the control device for energy saving of the base station can be any intelligent terminal including a mobile phone, a tablet computer, a Personal Digital Assistant (PDA for short), a Point of Sales (POS for short), a vehicle-mounted computer, and the like.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-executable instructions are used to execute the foregoing control method for power saving of a base station.
  • the control method for energy saving of a base station, a control device for energy saving of a base station, an electronic device, and a computer-readable storage medium proposed in the embodiments of the present application enter an energy saving state by acquiring the service data of the base station, triggering the base station corresponding to the service data that satisfies the triggering condition, and entering the energy saving state.
  • the base station Calculate the traffic load of the base station entering the energy-saving state, so as to control to turn off or open the corresponding time slot according to the relationship between the calculated traffic load and the preset time slot threshold, for example, when the traffic load is less than
  • the base station closes some downlink time slots (for example, shuts down M time slots), and aggregates all current services to the time slots that are not closed. scheduling, so as to achieve the effect of energy saving.
  • the embodiment of the present application also performs modulo calculation on the PCI numbers of the cells.
  • different results correspond to different time slot offsets, and the starting time slots of the scheduling time slots in different cells are different.
  • the cells With its own shutdown bitmap, the cells are independent of each other, and time-sharing staggered scheduling can be performed, thereby effectively suppressing inter-cell signal interference.
  • the memory can be used to store non-transitory software programs and non-transitory computer-executable programs.
  • the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the memory may include memory located remotely from the processor, which may be connected to the processor through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • FIGS. 2-3 and 5-7 do not constitute limitations to the embodiments of the present application, and may include more or less steps than those shown in the drawings, or combine certain steps , or different steps.
  • At least one (item) refers to one or more, and "a plurality” refers to two or more.
  • “And/or” is used to describe the relationship between related objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B exist , where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.
  • the disclosed apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including multiple instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store programs medium.

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Abstract

基站节能的控制方法和装置、计算机可读存储介质。基站节能的控制方法，包括：获取基站的业务数据(201)，触发满足触发条件的所述业务数据所对应的基站进入节能状态(202)，计算出所述基站进入所述节能状态所对应的业务负荷量(203)，根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙(204)。

Description

基站节能的控制方法和装置、计算机可读存储介质
相关申请的交叉引用
本申请基于申请号为202011308662.7、申请日为2020年11月20日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及通信技术领域，尤其涉及基站节能的控制方法和装置、计算机可读存储介质。
背景技术
随着5G(5th Generation Mobile Networks)网络的快速发展，业务多样化，流量无限多，人们越来越离不开手机等移动终端，多人稍微集中的地方很容易成为热点；4G或5G终端的用户持续增长，通信网络受终端增长的影响也带来了很高的业务压力。新业务(如高清视频、***等业务)的发展，使得无论是终端或者网络的数据流量需求都急剧增长。各种需求增加了更多基站的密集布置，从而容易引发以下问题：5G基站的高功率和高密度布置带来的能耗高居不下；基站的高密度布置产生的小区间干扰影响通信质量。
发明内容
本申请实施例提出一种基站节能的控制方法和装置、计算机可读存储介质，以实现基站节能。
本申请实施例的第一方面提出了一种基站节能的控制方法，包括：获取基站的业务数据；
触发满足触发条件的所述业务数据所对应的基站进入节能状态；计算出所述基站进入所述节能状态所对应的业务负荷量；根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。
本申请实施例的第二方面提出了一种基站节能的控制装置，包括：获取模块，被设置成获取基站的业务数据；触发模块，被设置成触发满足触发条件的所述业务数据所对应的基站进入节能状态；计算模块，被设置成计算出所述基站进入所述节能状态的业务负荷量；控制模块，被设置成根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。
本申请实施例的第三方面提出了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行：如上述所述的基站节能的控制方法。
附图说明
图1是本申请实施例提供的基站节能的控制方法的应用场景示意图。
图2是本申请第一实施例提供的基站节能的控制方法的流程图。
图3是图2的步骤203的流程图。
图4是本申请第二实施例提供的基站节能的控制方法中得到的关断位图的示意图。
图5是本申请第二实施例提供的基站节能的控制方法中得到关断位图的流程图。
图6是本申请第三实施例提供的基站节能的控制方法中得到关断位图的流程图。
图7是本申请实施例提供的基站节能的控制方法在一应用场景的流程图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需要说明的是，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步骤。说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中所使用的术语只是为了描述本申请实施例的目的，不是旨在限制本申请。
首先，对本申请中涉及的若干名词进行解析：
5G(5th generation mobile networks或5th generation wireless systems、5th-Generation,第五代移动通信技术)：简称5G或5G技术；5G是最新一代蜂窝移动通信技术，也是继4G(LTE-A、WiMax)、3G(UMTS、LTE)和2G(GSM)***之后的延伸。5G的性能目标是高数据速率、减少延迟、节省能源、降低成本、提高***容量和大规模设备连接。
LTE(Long Term Evolution，长期演进)：由3GPP(the 3rd Generation Partnership Project，第三代合作伙伴计划)组织制定的UMTS(Universal Mobile Telecommunications System，通用移动通信***)技术标准的长期演进。
PCI(Physical-layer Cell Identity，物理小区标识)：是物理小区ID,用于唯一标识一个小区。
slot(时隙)：是电路交换汇总信息传送的最小单位，是时分复用模式(TDM)中的一个时间片，专用于某一个单个通道的时隙信息的串行自复用的一个部分。
PRB(Physical Resource Block,物理资源模块)：是指频域上12个连续的载波的资源，时域上是一个时隙的资源。
Bitmap：关断位图，又称点阵图。
NR(New Radio)：是指5G NR,支持多种子载波间隔。
帧格式：是指根据协议规定的不同帧的格式。
广播信道：是指通过广播的方式传输信息的信息通道。
当前接入网能耗占到了整个通信网络能耗的绝大部分，常用的节能技术包括：器件级节能，优选低功耗器件，并在业务空闲期合理应用器件的低功耗模式，提高功放等器件的效率等；设备级节能，考虑2/3/4G/WLAN***业务负荷在时间、空间上的潮汐效应，针对不同的应用场景提供符号、时隙、通道、载频等不同粒度、灵活的关断控制策略；网络级节能，针对2/3/4G/WLAN***的特点，实现WLAN网络与蜂窝网间的协作节能。其中的网络级节能，主 要针对在小区重叠覆盖的场景下，通过在低负载时激活小基站休眠功能，使整站进入低功耗模式达到省电的目的。
本申请实施例提供的方案涉及基站节能的控制方法和装置、电子设备、计算机可读存储介质，具体通过如下实施例进行说明，首先描述本申请实施例中的基站节能的控制方法。
本申请实施例提供的基站节能的控制方法，可应用于终端中，也可应用于服务器端中，还可以是运行于终端或服务器端中的软件。在一些实施例中，终端可以是智能手机、平板电脑、笔记本电脑、台式计算机或者智能手表等；服务器端可以配置成独立的物理服务器，也可以配置成多个物理服务器构成的服务器集群或者分布式***，还可以配置成提供云服务、云数据库、云计算、云函数、云存储、网络服务、云通信、中间件服务、域名服务、安全服务、CDN以及大数据和人工智能平台等基础云计算服务的云服务器；软件可以是实现基站节能的控制方法的应用等，但并不局限于以上形式。
图1是本申请实施例的应用场景示意图，本申请实施例的基站节能的控制方法应用于网络***中，网络***包括：基站和小区，基站和小区之间可以进行网络通信。小区中可以安装电脑、电视、电话等通信设备。
图2是本申请实施例提供的基站节能的控制方法的一个流程图，图2中的方法包括步骤201至步骤204。
步骤201、获取基站的业务数据；
步骤202、触发满足触发条件的业务数据所对应的基站进入节能状态；
步骤203、计算出基站进入节能状态所对应的业务负荷量；
步骤204、根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。在步骤201中，业务数据可以包括，但不限于包括PRB利用率、用户数、当前业务的优先级、所处的时间段。具体地，基站的业务数据包括：PRB利用率、当前基站连接的用户数、当前业务优先级、所处的时间段。
本申请实施例的步骤201中，获取到的触发条件用于触发基站进入节能状态，若基站进入节能状态，则执行步骤202。
在一些实施例中，步骤202中，满足触发条件的业务数据可以包括，但不限于包括：用户数低于用户门限值、当前不存在预设的高优先级业务、当前所处的时间段为预设的节能周期内。节能状态是指依据实际需要关断部分时隙、将所有的业务汇聚到未关断的时隙上进行调度的状态。
在实际应用中，PRB利用率是指下行PRB利用率，若下行PRB利用率低于时隙关断门限值，则表明业务量负荷低，因此，基站将部分时隙关断、将所有的业务汇聚到未关断的时隙上进行调度，从而达到节能的效果；若下行PRB利用率高于时隙打开门限值，则表明业务量负载增加，从而基站需要打开已关断的时隙，重新开始调度。其中，预设的高优先级业务可以依据实际需要进行设置，例如，将观看直播业务、游戏业务设置为高优先级业务；而将网络浏览业务、收发邮件业务设置为低优先级业务。可以理解的是，若不满足以下条件之一，则退出节能状态：用户数低于用户门限值，当前时间在预设的节能周期内，不存在预设的高优先级业务。
在一些实施例的步骤203中，业务负荷量包括滤波值，该滤波值是指PRB利用率所对应的滤波值，具体地，PRB利用率的滤波值为下行PRB利用率的滤波值。由于实际在调度时候 的时候，每个周期的业务数据可能变化较大，为了防止这种较大的变动导致PRB利用率的统计不准确，所以在统计当前周期的PRB利用率时，通过对先前的若干周期内的PRB利用率进行加权计算作为当前周期的PRB利用率。图3是本申请实施例提供的步骤203的一个流程图，图3中的步骤包括步骤301至步骤303。
步骤301、计算出每个时隙在可用带宽下的PRB利用率；
步骤302、根据所有计算出的PRB利用率计算出节能周期内激活时隙的平均PRB利用率；
步骤303、根据计算出的平均PRB利用率计算出滤波值。
在一些实施例中，PRB利用率为下行PRB利用率，也是当前的下行PRB利用率；步骤301中，基站进入节能状态后，计算出每个时隙在可用带宽下的PRB利用率，包括：当前的PRB利用率等于前时隙调度的PRB数除以当前时隙可用的PRB数；具体地，步骤301中计算PRB利用率的公式如公式(1)所示：
Figure PCTCN2021130137-appb-000001
其中，P p_n为当前时隙的PRB利用率，也即当前的第n个激活下行时隙的PRB利用率，Ps为当前时隙调度的PRB数，P a为当前时隙可用的PRB数。
步骤302中，根据所有计算出的PRB利用率计算出节能周期内激活时隙的平均PRB利用率的公式如公式(2)所示：
Figure PCTCN2021130137-appb-000002
其中，P avg为节能周期内激活时隙的平均PRB利用率，N为节能周期内总的激活时隙数量，P p_n为第n个激活时隙的PRB利用率。
步骤303中，根据计算出的平均PRB利用率计算出滤波值的公式如公式(3)所示：
P f＝α*P p_n+(1-α)*P p_n-1        公式(3)
其中，P f为滤波值,α为滤波系数，可以根据需要进行配置，α的取值范围是0到1之间的小数，P p_n为第n个激活时隙的PRB利用率，P p_n为第n-1个激活时隙的PRB利用率。
在一些实施例的步骤204中，时隙门限值包括时隙关断门限值和时隙打开门限值，滤波值与预设的时隙门限值之间的关系包括：
滤波值小于预设的时隙关断门限值，或者
滤波值大于预设的时隙打开门限值，或者
滤波值在时隙关断门限值与时隙打开门限值的范围内。其中，时隙关断门限值小于时隙打开门限值。
在一些实施例中，步骤204包括：
若滤波值小于预设的时隙关断门限值，则控制关断M个时隙；其中M为1到99的整数；M的取值表示关断时隙的粒度，M的取值和节能周期相关，若M的取值太大容易造成***不收敛，若M的取值过小容易造成***反应较慢。
具体地，若滤波值小于预设的时隙关断门限值，则进入关断时隙策略，即：通过周期性地统计并计算出PRB利用率，其中周期的时长可设置为：不限于NR无线帧的整数倍。例如，NR无线帧的周期为10ms，则周期的时长可设置为：20ms、30ms、40ms等。
在实际应用中，当滤波值小于预设的时隙关断门限值时，即当业务量负荷低时，基站关闭部分下行时隙(例如关断M个时隙)，将当前所有的业务汇聚到未关闭的时隙上进行调度， 从而达到节能的效果。
可以理解地，关断时隙策略还包括：
计算下一个节能周期内继续关断M个时隙后的PRB利用率P next1；
若PRB利用率P next1小于时隙关断门限值，则控制在下一个节能周期内关断的时隙数量为M个；
其中，计算下一个节能内继续关断M个时隙后的PRB利用率P1的公式如公式(4)所示；
Figure PCTCN2021130137-appb-000003
其中，P next1为下一个节能周期内继续关断M个时隙后的PRB利用率，P f为滤波值，N为节能周期内总的激活下行时隙数目，M是下一个节能周期内继续关断的时隙数量。
具体地，以节能周期为20ms举例说明：若节能周期为20ms且在当前有32个下行时隙(即N＝32)，则控制关断2个时隙(即M＝2)。
进一步地，下一节能周期内关断的时隙数量等于当前节能周期内关断的时隙数量加上M个时隙数量，即：下一节能周期内关断的时隙数量＝当前节能周期内关断的时隙数量+M。以上述实施例进行举例说明：当前节能周期内关断了M个时隙，则下一个节能周期内关断的时隙数量＝M+M，则下下一个节能周期内关断了的时隙数量＝M+M+M，以此类推，计算公式如公式(5)所示；
OffNUM n+1＝OffNUM n+M        公式(5)
其中，OffNUM n+1是下一个节能周期内关断的下行时隙的数量，OffNUM n+1的初始值设置为0，NUM n是当前节能周期内关断的下行时隙的数量。
步骤204还包括：
若滤波值大于预设的时隙打开门限值，则控制打开L个时隙；其中L为1到99的整数；
具体地，若滤波值大于预设的时隙打开门限值，则进入打开时隙策略，即：通过周期性地统计并计算出PRB利用率，其中周期的时长可设置为：包括不限于NR无线帧的整数倍。
在实际应用中，当滤波值大于预设的时隙打开门限值时，即当检查到业务负载增加时，基站重新打开已关闭的时隙(例如重新打开L个时隙)，从而可以进行重新调度。
可以理解地，打开时隙策略还包括：
计算下一个节能周期内继续打开L个时隙后的PRB利用率P next2；
若PRB利用率P next2大于时隙打开门限值，则控制在下一个节能周期内打开L个时隙；
其中，计算下一个节能内打开L个时隙后的PRB利用率P next2的公式如公式(6)所示；
Figure PCTCN2021130137-appb-000004
其中，P next2为下一个节能周期内打开L个时隙后的PRB利用率，P f为滤波值，N为节能周期内总的激活下行时隙的数量，L是下一个节能周期内打开的下行时隙的数量。L的取值表示打开时隙的粒度，L的取值和节能周期相关，若L的取值太大容易造成***不收敛，若N的取值过小容易造成***反应较慢。具体地，以节能周期为20ms举例说明：若节能周期为20ms且在当前有32个下行时隙(即N＝32)，则控制打开3个时隙(即L＝3)。
进一步地，下一节能周期内打开的时隙数量等于当前节能周期内已被关断的时隙数量减去L个时隙数量，即：下一节能周期内关断的时隙数量＝当前节能周期内已被关断的时隙数量-L。以上述实施例进行举例说明：当前节能周期内已被关断了M个时隙、且当前节能周期内 打开了L个时隙，则下一个节能周期内打开的时隙数量＝M-L，则下下一个节能周期内关断了的时隙数量＝M-L-L，以此类推，计算公式如公式(7)所示；
OffNUM n+1＝OffNUM n-L        公式(7)
其中，OffNUM n+1是下一个节能周期内关断的下行时隙的数量，OffNUM n+1的初始值设置为0，NUM n是当前节能周期内关断的下行时隙的数量。
步骤204还包括：
若滤波值在时隙关断门限值与时隙打开门限值的范围内，则控制当前已打开的时隙的数量不变。
具体地，滤波值在时隙关断门限值与时隙打开门限值的范围内，包括：
滤波值大于或等于时隙关断门限值，
滤波值小于或等于时隙打开门限值。
可以理解地，若滤波值在时隙关断门限值与时隙打开门限值的范围内，则既不关断时隙也不重新打开时隙、维持目前已打开的时隙数量不变。
本申请实施例提供的基站节能的控制方法，通过获取基站的业务数据、触发满足触发条件的业务数据所对应的基站进入节能状态，并计算出基站进入节能状态的滤波值，从而根据所计算出的滤波值与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，例如当滤波值小于预设的时隙关断门限值时，即当业务量负荷低时，基站关闭部分下行时隙(例如关断M个时隙)，将当前所有的业务汇聚到未关闭的时隙上进行调度，从而达到节能的效果。
本申请实施例提供的基站节能的控制方法还包括：
维护对应时隙的关断位图。
具体地，根据无线帧格式不同，小区内维护一组时隙的关断位图(Bitmap)，关断位图的周期长度根据实际需要进行设置，可以、但不限制于设置为：包含NR无线帧的整数倍。例如，NR无线帧的周期为10ms，则周期的时长可设置为：20ms、30ms、40ms等。
请参阅图4，图4示意了关断位图。后续结合图5和图6进行详细阐述。
在实际应用中，不同帧格式参考不同结构的时隙的关断位图，关断顺序从左到右，先关后开；对关断位图进行编号，识别小区公共信道配置，打开对应编号为小区公共信道配置的时隙，从而对于打开的时隙也可以正常调度其他业务。
具体地，请参阅图5，维护对应时隙的关断位图，包括步骤501至步骤503：
步骤501、根据帧格式维护相应时隙的关断位图；
步骤502、对关断位图进行编号；
步骤503、识别小区的广播信道配置，打开对应编号为广播信道配置的时隙。识别小区的广播信道配置，打开对应编号为广播信道配置的时隙。
在步骤501中，由于不同帧格式需参考不同结构的时隙的关断位图，因此需根据帧格式的不同对应时隙个数不同，以维护不同的时隙关断位图。
在步骤502中，对关断位图进行编号的原则是：顺序随机打乱，从而可以防止因为集中关断，影响调度时延。
在步骤503中，识别小区的广播信道配置，打开对应编号为广播信道配置的时隙，从而对于打开的时隙也可以正常调度其他业务。
进一步地，针对混合模式(是指4G LET和5G NR共用一个基站)的场景下，维护对应时 隙的时隙偏移，得到每个小区的关断位图，还包括：
针对4G LET和5G NR共用一个基站的混合模式的场景，需要打开LTE广播信道配置的时隙，从而对于打开的时隙可以正常调度其他业务。
在另一个实施例中，请参阅图6，维护对应时隙的关断位图，包括：
步骤601、获取小区级的关断位图；
步骤602、对小区的PCI编号进行取模计算，得到对应小区的关断位图中的时域偏移；对小区的PCI编号进行取模计算，得到对应小区的关断位图中的时域偏移
步骤603、根据时域偏移关断或打开关断位图的时隙。
在步骤601中，在单个模式(5G NR基站)多载波场景下，获取小区级的时隙关断位图，包括：
对每个载波配置关断位图；
获取其他载波配置参数；
取公共信道交集，得到小区级的时隙关断位图。
在一个实施例中，步骤602中，根据从步骤601获取到的关断位图，根据时域偏移进行循环移位后得到3个新的关断位图，相邻的两个新的关断位图起点之间的间隔记作Slot_offset，关断位图循环移位，长度相等；其中，相邻的两个新的关断位图起点之间的间隔Slot_offset的公式如公式(8)所示；
Figure PCTCN2021130137-appb-000005
其中，length(bitmap)表述关断位图的长度。
在一个应用场景中，2个无线帧共有40个时隙，分别是：时隙S0、时隙S1、时隙S2、时隙S3、时隙S4、时隙S5、……、时隙S22、时隙S23、时隙24、时隙S5、时隙S25、时隙S26、……、时隙S37、时隙S38、时隙S39，根据时域偏移进行循环移位后得到3个新的关断位图：时隙S0至时隙S13、时隙S13至时隙S26、时隙S26至时隙S39，从而得到第一个新时隙的关断位图是时隙S0至时隙S39，第二个新时隙的关断位图是时隙S13至时隙S39加上时隙S0至时隙S12，第三个新时隙的关断位图是时隙S26至时隙S39加上时隙S0至时隙S25。
在一个实施例中，步骤602中，通过对小区的PCI编号取模3计算，得到对应小区在关断位图中的时域偏移为Slot_offset*mod(PCI,3)，得到每个PCI小区使用的关断位图，其中：
PCI模3等于0，则时隙的关断位图起始偏移为0*Slot_offset；
PCI模3等于1，则时隙的关断位图起始偏移为1*Slot_offset；
PCI模3等于2，则时隙的关断位图起始偏移为2*Slot_offset；
在步骤603中，根据时域偏移对关断位图进行关断或打开时参照关断原则对关断位图进行从左到右、先关后开进行操作。以下将结合图4进一步阐述。
结合图4所示，示例地，在周期1中，包括了2个无线帧，共有40个时隙，分别是：时隙S0、时隙S1、时隙S2、时隙S3、时隙S4、时隙S5、……、时隙S22、时隙S23、时隙24、时隙S5、时隙S25、时隙S26、……、时隙S37、时隙S38、时隙S39(图未示)；其中，当PCI模3等于2时，时隙的关断位图起始偏移为2*Slot_offset；关断原则是从左到右的时隙 关断方向，先关后开，例如，从左到右依次关断时隙S26、时隙S27、时隙S28、……、时隙S38、时隙S39、时隙S0、时隙S1、……、时隙S24、时隙S25，若要打开时隙，则从右到左依次打开时隙S25、时隙S24、……、时隙S26。
本申请实施例中，对小区PCI编号进行取模计算，根据计算结果的不同和和载波个数的不同，以对应不同的时隙偏移，根据小区PCI编号不同，不同结果对应不同的时隙偏移，且不同小区调度时隙的起始时隙不同，维护每个小区自己的关断位图，小区之间相互独立，时域错开、以分时错开调度，能有效抑制小区间信号干扰。
本申请实施例提出的基站节能的控制方法，通过获取基站的业务数据、触发满足触发条件的业务数据所对应的基站进入节能状态，并计算出基站进入节能状态的业务负荷量，从而根据所计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，例如当业务负荷量小于预设的时隙关断门限值时，即当业务量负荷低时，基站关闭部分下行时隙(例如关断M个时隙)，将当前所有的业务汇聚到未关闭的时隙上进行调度，从而达到节能的效果。即通过对业务负荷的统计确定节能周期内开启的时隙的数量，从而使得业务在时域汇聚，扩展频域资源进行调度，在时域空闲阶段可以关断基站的功率放大器等耗能器件，从而起到节能降耗的效果。本申请实施例还通过对小区PCI编号进行取模计算，根据计算结果的不同和和载波个数的不同，以对应不同的时隙偏移，根据小区PCI编号不同，不同结果对应不同的时隙偏移，且不同小区调度时隙的起始时隙不同，维护每个小区自己的关断位图，小区之间相互独立，进行分时错开调度，从而可以有效抑制小区间信号干扰。
此外，通过维护时隙的关断位图，同一站点的不同小区进行时域错开调度，能有效避免小区信号干扰。更具体地，当业务量负荷低时，基站通过关闭部分下行时隙，将所有的业务汇聚到未关闭的时隙上进行调度，从而达到节能的效果。当检查到业务负载增加后，打开已关闭的时隙重新开始调度。同时，不同的小区在业务负荷较低时，按照时域错开的原则，打开不同的时隙进行调度，从而在时域上抑制小区间的信号干扰。
常见的节能方式包括：载波关断、天线通道关断和智能关断等，常见的节能方式具有以下不足之处：关断或/开启动作比较缓慢，响应不够及时，常通过定时开启关断，不能实时开启；关断方式比较粗暴，影响业务覆盖；“热点”区域(多个通信设备集中使用网络通信的区域)的基站可能永远都进入不了节能状态；存在局限性，抑制效果有限，不能适配所有类型的基站。相比于常见的节能方式，本申请实施例提出的节能方法，可以全天候实时动态响应，应时间快，根据基站的当前业务调整状态，不影响覆盖，适配所有类型基站且能有效抑制小区间干扰。
本申请实施例应用于5G，在实际应用中，不同帧格式参考不同结构的时隙的关断位图，关断顺序从左到右，先关后开；识别小区公共信道配置，打开时隙的关断位图中对应的公共信道位置的时隙，对于打开的时隙也可以正常调度其他业务；针对混模场景，需要打开LTE广播信道位置的时隙，对于打开的时隙可以正常调度其他业务；根据小区属性(小区PCI编号)的不同，小区间根据PCI编号的不同和载波个数的不同，进行对应的时域的时隙偏移，维护每个小区自己的关断位图，小区之间相互独立，时域错开，低业务负荷时可以有效抑制小区间信号干扰。
图7是本申请实施例提供的基站节能的控制方法的一个应用场景的流程图，图7中的方法包括步骤701至步骤708。
步骤701、判断是否满足触发条件；若满足触发条件，则进入节能状态，执行步骤702；否则，执行步骤708；
步骤702、计算出滤波值；
步骤703、判断滤波值与预设的时隙门限值之间的关系，若滤波值小于预设的时隙关断门限值，则执行步骤704；若PRB利用率的滤波值大于预设的时隙打开门限值，则执行步骤705；否则，则执行步骤706；
步骤704、控制关断时隙的数量为M个；然后执行步骤707；
步骤705、控制打开时隙的数量为L个；然后执行步骤707；
步骤706、控制打开时隙的数量保持不变；然后执行步骤707；
步骤707、维护时隙偏移，得到对应每个小区的关断位图；
步骤708、退出节能状态。
本申请实施例应用于5G，在实际应用中，不同帧格式参考不同结构的时隙的关断位图，关断顺序从左到右，先关后开；识别小区公共信道配置，打开时隙的关断位图中对应的公共信道位置的时隙，对于打开的时隙也可以正常调度其他业务；针对混模场景，需要打开LTE广播信道位置的时隙，对于打开的时隙可以正常调度其他业务；根据小区属性(PCI编号)的不同和载波个数的不同，进行对应的时域的时隙偏移，维护每个小区自己的关断位图，小区之间相互独立，时域错开，低业务负荷时可以有效抑制小区间信号干扰。
本申请实施例还提供一种基站节能的控制装置，可以实现上述基站节能的控制方法，该装置包括：
获取模块，被设置成获取基站的业务数据；
触发模块，被设置成触发满足触发条件的业务数据所对应的基站进入节能状态；
计算模块，被设置成计算出基站进入节能状态所对应的业务负荷量；
控制模块，被设置成根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。
本申请实施例还提供又一实施例的基站节能的控制装置，包括：
至少一个存储器；
至少一个处理器；
至少一个程序；
所述程序被存储在存储器中，处理器执行所述至少一个程序以实现公开实施例上述基站节能的控制方法。该基站节能的控制装置可以为包括手机、平板电脑、个人数字助理(Personal Digital Assistant，简称PDA)、销售终端(Point of Sales，简称POS)、车载电脑等任意智能终端。
本申请实施例还提供了一种计算机可读存储介质，所述计算机可执行指令用于执行上述基站节能的控制方法。
本申请实施例提出的基站节能的控制方法、基站节能的控制装置、电子设备、计算机可读存储介质，通过获取基站的业务数据、触发满足触发条件的业务数据所对应的基站进入节能状态，并计算出基站进入节能状态的业务负荷量，从而根据所计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，例如当业务负荷量小于预设的时隙关断门限值时，即当业务量负荷低时，基站关闭部分下行时隙(例如关断M个时隙)，将当前 所有的业务汇聚到未关闭的时隙上进行调度，从而达到节能的效果。
此外，本申请实施例还通过对小区PCI编号进行取模计算，根据小区PCI编号不同，不同结果对应不同的时隙偏移，且不同小区调度时隙的起始时隙不同，维护每个小区自己的关断位图，小区之间相互独立，进行分时错开调度，从而可以有效抑制小区间信号干扰。
存储器作为一种非暂态计算机可读存储介质，可用于存储非暂态软件程序以及非暂态性计算机可执行程序。此外，存储器可以包括高速随机存取存储器，还可以包括非暂态存储器，例如至少一个磁盘存储器件、闪存器件、或其他非暂态固态存储器件。在一些实施方式中，存储器可包括相对于处理器远程设置的存储器，这些远程存储器可以通过网络连接至该处理器。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例描述的实施例是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域技术人员可知，随着技术的演变和新应用场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本领域技术人员可以理解的是，图2-3和5-7中示出的步骤并不构成对本申请实施例的限定，可以包括比图示更多或更少的步骤，或者组合某些步骤，或者不同的步骤。
以上所描述的装置实施例仅仅是示意性的，其中作为分离部件说明的单元可以是或者也可以不是物理上分开的，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、***、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
本申请的说明书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括多指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序的介质。
以上参照附图说明了本申请实施例的一些实施例，并非因此局限本申请实施例的权利范围。本领域技术人员不脱离本申请实施例的范围和实质内所作的任何修改、等同替换和改进，均应在本申请实施例的权利范围之内。

Claims (10)

  1. 一种基站节能的控制方法，包括：
    获取基站的业务数据；
    触发满足触发条件的所述业务数据所对应的基站进入节能状态；
    计算出所述基站进入所述节能状态所对应的业务负荷量；
    根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。
  2. 根据权利要求1所述的方法，其中，所述业务负荷量包括滤波值，所述计算出所述基站进入所述节能状态所对应的业务负荷量，包括：
    计算出每个所述时隙在可用带宽下的PRB利用率；
    根据所有计算出的PRB利用率计算出节能周期内激活时隙的平均PRB利用率；
    根据计算出的平均PRB利用率计算出所述滤波值。
  3. 根据权利要求2所述的方法，其中，所述时隙门限值包括时隙关断门限值，所述滤波值与预设的时隙门限值之间的关系包括所述滤波值小于所述时隙关断门限值；
    所述根据计算出的滤波值与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，包括：
    若所述滤波值小于所述时隙关断门限值，则控制关断M个所述时隙；其中M为1到99的整数。
  4. 根据权利要求3所述的方法，其中，所述根据计算出的滤波值与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，还包括：
    计算下一个节能周期内继续关断M个时隙后的PRB利用率P next1；
    若所计算出的PRB利用率P next1小于所述时隙关断门限值，则控制在下一个节能周期内关断的时隙数量为M个；其中M为1到99的整数。
  5. 根据权利要求3所述的方法，其中，所述时隙门限值还包括时隙打开门限值，所述滤波值与预设的时隙门限值之间的关系包括所述滤波值大于所述时隙打开门限值；
    所述根据计算出的滤波值与预设的时隙门限值之间的关系，控制关断或打开相应的时隙，还包括：
    若计算出的滤波值大于所述时隙打开门限值，则控制打开L个所述时隙；其中L为1到99的整数。
  6. 根据权利要求1至5任意一项所述的方法，其中，还包括：
    维护对应所述时隙的关断位图。
  7. 根据权利要求6所述的方法，其中，所述维护对应所述时隙的时隙偏移，得到每个小区的关断位图，包括：
    根据帧格式维护相应时隙的关断位图；
    对所述关断位图进行编号；
    识别小区的广播信道配置，打开对应所述编号为所述广播信道配置的时隙。
  8. 根据权利要求6所述的方法，其中，所述维护对应所述时隙的关断位图，包括：
    获取小区级的关断位图；
    对小区的PCI编号进行取模计算，得到对应小区的时域偏移；
    根据所述时域偏移关断或者打开所述关断位图的时隙。
  9. 一种基站节能的控制装置，包括：
    获取模块，被设置成获取基站的业务数据；
    触发模块，被设置成触发满足触发条件的所述业务数据所对应的基站进入节能状态；
    计算模块，被设置成计算出所述基站进入所述节能状态所对应的业务负荷量；
    控制模块，被设置成根据计算出的业务负荷量与预设的时隙门限值之间的关系，控制关断或打开相应的时隙。
  10. 一种计算机可读存储介质，存储有计算机可执行指令，其中，所述计算机可执行指令用于使计算机执行：
    如权利要求1至8任一项所述的方法。
PCT/CN2021/130137 2020-11-20 2021-11-11 基站节能的控制方法和装置、计算机可读存储介质 WO2022105671A1 (zh)

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