CN113347662B - Load balancing method and device, computing equipment and computer storage medium - Google Patents
Load balancing method and device, computing equipment and computer storage medium Download PDFInfo
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- CN113347662B CN113347662B CN202010099232.2A CN202010099232A CN113347662B CN 113347662 B CN113347662 B CN 113347662B CN 202010099232 A CN202010099232 A CN 202010099232A CN 113347662 B CN113347662 B CN 113347662B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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Abstract
The embodiment of the invention relates to the technical field of communication, and discloses a load balancing method, a device, a computing device and a computer storage medium, wherein the method comprises the following steps: determining a target cell with balanced load; determining cell types of a target cell and a source cell; acquiring uplink RSRP of each load in a source cell; performing coverage grade division on each load in a source cell according to an interval to which an uplink RSRP belongs to obtain a coverage grade corresponding to each load, wherein the coverage grade is used for representing the strength of a signal which can be received by the load; determining the balancing priority of each load according to the coverage grade and the cell types of the target cell and the source cell; and balancing the load in the source cell to the target cell in sequence from high to low according to the balancing priority until the balancing stop condition is met. Through the mode, the embodiment of the invention realizes load balancing.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a load balancing method, a load balancing device, computing equipment and a computer storage medium.
Background
Mobility Load Balancing (MLB) refers to transferring a part of user terminals in a cell in a high Load state to a cell in a low Load state when an eNodeB determines that the Load state of the cell is in the high Load state, so as to balance loads between inter-frequency cells.
And when load balancing is carried out, determining candidate neighbor cells based on the pilot frequency neighbor cell list of the cell in a high load state. And determining a target cell in a low load state according to the load state of each candidate neighbor cell. And balancing the load in the cell in the high load state to the target cell to realize load balancing.
In the above manner, when the load is balanced, the target cell is determined only in consideration of the load state of the candidate neighbor cell. After the load to be balanced is accessed to the target cell in a balanced manner, the perception of the user may be reduced.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present invention provide a load balancing method, an apparatus, a computing device, and a computer storage medium, which are used to solve the problem in the prior art that user perception is reduced after load balancing.
According to an aspect of an embodiment of the present invention, there is provided a load balancing method, including:
determining a target cell with balanced load;
determining cell types of the target cell and the source cell, wherein the cell types comprise a capacity layer cell and an overlay layer cell;
acquiring uplink RSRP of each load in the source cell;
performing coverage grade division on each load in the source cell according to the interval to which the uplink RSRP belongs to obtain a coverage grade corresponding to each load, wherein the coverage grade is used for representing the signal strength which can be received by the load;
determining the balancing priority of each load according to the coverage grade and the cell types of the target cell and the source cell;
and balancing the load in the source cell to the target cell in sequence from high to low according to the balancing priority until a balancing stop condition is met.
In an optional manner, the determining the cell types of the target cell and the source cell includes:
if the frequency band of the first cell is matched with at least one frequency band contained in a capacity layer, determining the cell type of the first cell as a capacity layer cell;
if the frequency band of the first cell is matched with at least one frequency band contained in a covering layer, determining that the cell type of the first cell is a covering layer cell;
the first cell is any one of a target cell or a source cell.
In an optional manner, the determining a balancing priority of each load according to the coverage class and the cell categories of the target cell and the source cell includes:
if the source cell is a covering layer cell and the target cell is a capacity layer cell, determining that the balancing priority corresponding to the load with high covering level is high priority and the balancing priority corresponding to the load with low covering level is low priority;
and if the source cell is a capacity layer cell and the target cell is an overlay cell, determining that the balance priority corresponding to the load with high coverage level is low priority and the balance priority corresponding to the load with low coverage level is high priority.
In an optional manner, the determining a target cell for load balancing includes:
determining the load utilization rate of each different-frequency adjacent cell in the adjacent cell table;
and determining the pilot frequency adjacent cell with the load utilization rate lower than a threshold value as the target cell with balanced load.
In an alternative manner, the equalization stop condition includes:
and the load utilization rate of the source cell is less than or equal to the threshold value of the source cell in a preset time period, or the load utilization rate of the target cell reaches the threshold value of the target cell.
In an optional manner, if there are multiple target cells, after determining the cell types of the target cell and the source cell, the method further includes:
determining the transfer priority of each target cell according to the cell type of the source cell;
the balancing the load in the source cell to the target cell in sequence from high to low according to the balancing priority until a balancing stop condition is met includes:
sequencing the target cells according to the sequence of the transfer priority from high to low;
and sequentially taking the sequenced target cells as access cells, and sequentially balancing the load to the access cells according to the sequence of the balancing priority from high to low until the balancing stop condition is met.
In an optional manner, the determining the transfer priority of each target cell according to the category of the source cell includes:
if the source cell is an overlay cell, the transfer priority of a capacity layer cell in the target cells is higher than that of the overlay cell;
and if the source cell is a capacity layer cell, the transfer priority of the overlay layer cell in the target cells is higher than that of the capacity layer cell.
According to another aspect of the embodiments of the present invention, there is provided a load balancing apparatus, including:
the first determining module is used for determining a target cell with balanced load;
a second determining module, configured to determine cell types of the target cell and the source cell, where the cell types include a capacity layer cell and an overlay layer cell;
the acquisition module is used for acquiring uplink RSRP of each load in the source cell;
a dividing module, configured to perform coverage grade division on each load in a source cell according to an interval to which the uplink RSRP belongs to obtain a coverage grade corresponding to each load, where the coverage grade is used to characterize signal strength received by the target load;
a third determining module, configured to determine a balancing priority of each load according to the coverage level and the cell types of the target cell and the source cell;
and the load balancing module is used for sequentially balancing the load to the target cell according to the sequence of the balancing priority from high to low until a balancing stop condition is met.
According to another aspect of embodiments of the present invention, there is provided a computing device including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the load balancing method.
According to another aspect of the embodiments of the present invention, there is provided a computer-readable storage medium, in which at least one executable instruction is stored, and the executable instruction causes a computing device to execute the load balancing method described above.
According to the embodiment of the invention, the load in the source cell is subjected to coverage grade division according to the uplink RSRP of each load in the source cell, the load balancing priority is determined according to the coverage grade and the cell types of the target cell and the source cell, when the load balancing is carried out, the load balancing target cell is subjected to load balancing according to the sequence of the load balancing priority from high to low, and better user perception can be obtained after the load with higher balancing priority is balanced to the target cell.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and in order that the technical solutions of the embodiments of the present invention can be clearly understood, the embodiments of the present invention can be implemented according to the content of the description, and the above and other objects, features, and advantages of the embodiments of the present invention can be more clearly understood, the detailed description of the present invention is provided below.
Drawings
The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flowchart illustrating a load balancing method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart illustrating a load balancing method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a load balancing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computing device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein.
Fig. 1 shows a flowchart of a load balancing method according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step 110: and determining a target cell with balanced load.
In this step, the target cell is a cell whose load utilization rate is lower than a threshold value in the inter-frequency neighboring cell of the source cell. The source cell is any cell with a load utilization rate higher than a threshold value. The threshold value is the maximum value of the cell load utilization. When the load utilization rate of the cell exceeds the threshold value of the cell, the processing capability of network data in the cell is insufficient, so that network congestion in the cell is caused.
The inter-frequency neighbor of the source cell is stored in the neighbor list. And the neighbor cell list stores the information of the active cell and the information of the neighbor cell of the active cell. The information of the source cell includes a frequency band of the source cell and a load utilization rate of the source cell. The information of the adjacent cell of the source cell comprises the frequency band and the load utilization rate of each adjacent cell of the source cell. And determining the pilot frequency adjacent cell of the source cell according to the frequency band of each adjacent cell, and taking the pilot frequency adjacent cell as a candidate adjacent cell with balanced load. And taking the candidate neighbor cell with the load utilization rate lower than the cell threshold value as a target cell for load balancing of the source cell so as to balance the load of the source cell to the target cell.
Step 120: and determining the cell types of the target cell and the source cell.
Wherein the cell categories include capacity layer cells and overlay layer cells. The capacity layer cell is a cell with a frequency band positioned in a capacity layer. The covering layer cell is a cell with a frequency band positioned on the covering layer. The frequency range of the capacity layer cell is low, the coverage is wide, and the signal coverage is weaker. The frequency range of the overlay cell is high, the interference is low, the frequency spectrum resources in the frequency band are many, and the signal coverage is strong. The capacity layer and the covering layer both comprise a plurality of frequency bands. For example, in LTE communication, cells in both the D band and the E band are capacity layer cells, and cells in the F band are overlay layer cells. And if any one cell in the target cell or the source cell is matched with any frequency band contained in the capacity layer, the cell is the capacity layer cell. And if any one of the target cell or the source cell is matched with any frequency band contained in the covering layer, the cell is the covering layer cell.
Step 130: and acquiring uplink RSRP of each load in the source cell.
In this step, when the load accesses the source cell, the load reports a Measurement Report (MR) to the base station of the source cell. The MR includes a loaded uplink Reference Signal Receiving Power (RSRP). The uplink RSRP is used to indicate the reception strength of the radio signal, and the larger the value of the RSRP is, the stronger the reception strength of the radio signal is.
Step 140: and performing coverage grade division on each load in the source cell according to the interval to which the uplink RSRP belongs to obtain the coverage grade corresponding to each load.
In this step, each coverage level corresponds to an uplink RSRP interval. In some embodiments, the coverage level includes three levels, coverage good, coverage medium, and coverage poor. Dividing the load with the uplink RSRP larger than or equal to-85 dBm to a coverage grade; dividing the load with the uplink RSRP less than-85 dBm and more than or equal to-105 dBm into a coverage medium level; and dividing the load with the uplink RSRP less than-105 dBm into coverage difference levels.
Step 150: and determining the balance priority of each load according to the coverage grade and the cell types of the target cell and the source cell.
In this step, if the source cell is a coverage cell and the target cell is a capacity layer cell, the received signal strength of the load with high coverage level in the source cell is high, so that the load with high coverage level in the source cell is balanced to the capacity layer and then more signals can be obtained compared with the load with low coverage level, and the uplink RSRP does not decay too fast, thereby having better user perception. The load with low coverage level in the source cell can receive low signal strength, and if the load is balanced to the capacity layer, the access failure is probably caused by poor coverage of the capacity layer. Therefore, when the source cell is an overlay cell and the target cell is a capacity layer cell, the load with high coverage level is preferentially selected to be balanced to the capacity layer. Namely, the balancing priority corresponding to the load with the high coverage level is the high priority, and the balancing priority corresponding to the load with the low coverage level is the low priority, so that the success rate of load balancing is improved, and the perception of a user is improved. Taking the coverage grades as a good coverage grade, a medium coverage grade and a poor coverage grade, wherein the equilibrium priorities comprise a high priority, a medium priority and a low priority, when the source cell is located in the coverage layer and the target cell is located in the capacity layer, the equilibrium priority corresponding to the good coverage grade is the high priority, the equilibrium priority corresponding to the medium coverage grade is the medium priority, and the equilibrium priority corresponding to the poor coverage grade is the low priority.
If the source cell is a capacity layer cell and the target cell is a covering layer cell, better uplink RSRP can be obtained after the load with low covering grade in the source cell is balanced to the covering layer, and therefore user perception is improved. When the load with high coverage level resides in the source cell at the capacity layer, the signal strength which can be received by the load is high, so that the load does not need to be preferentially accessed to the coverage layer. Better uplink RSRP may be obtained if the load is balanced to the overlay, but the user perception is less elevated than balancing the load with a low overlay level to the overlay. Therefore, when the source cell is a capacity layer cell and the target cell is an overlay cell, the balancing priority corresponding to the load with the low overlay level is the high priority, and the balancing priority corresponding to the load with the high overlay level is the low priority. Taking the coverage grades as a good coverage grade, a medium coverage grade and a poor coverage grade, wherein the equilibrium priorities comprise a high priority, a medium priority and a low priority, when the source cell is positioned on a capacity layer and the target cell is positioned on a coverage layer, the equilibrium priority corresponding to the poor coverage grade is the high priority, the equilibrium priority corresponding to the medium coverage grade is the medium priority, and the equilibrium priority corresponding to the good coverage grade is the low priority.
If the source cell is a capacity layer cell and the target cell is also a capacity layer cell, or the source cell is an overlay layer cell and the target cell is also an overlay layer cell, the load in the source cell can be randomly accessed to the target cell. Preferably, the load with high coverage grade in the source cell is accessed to the target cell, thereby improving the success rate of accessing the load to the target cell.
Step 160: and balancing the load to the target cell in sequence according to the balancing priority from high to low until the balancing stop condition is met.
In this step, the equalization stop condition includes: the load utilization rate of the source cell is less than or equal to the threshold value of the source cell in a preset time period, or the load utilization rate of the target cell reaches the threshold value of the target cell. When load balancing is carried out, the load is sequentially balanced to the target cell according to the sequence of the balancing priority from high to low, and the load utilization rate of the source cell and the target cell after one balancing is obtained every time load balancing is carried out. For the loads with the same balancing priority, the balancing sequence is random. If the load utilization rate of the source cell is lower than the threshold value of the load utilization rate of the source cell within a period of time, no further load balancing is needed. If the load utilization rate of the target cell is higher than the threshold value of the target cell after the load balanced by the access source cell, the load balancing can not be carried out any more. In this case, the problem of high load utilization of the source cell cannot be alleviated through load balancing, and the load utilization of the source cell may be reduced through other manners, for example, controlling the load number of the access source cell.
According to the embodiment of the invention, the load in the source cell is subjected to coverage grade division according to the uplink RSRP of each load in the source cell, the balanced priority of the load is determined according to the coverage grade and the cell types of the target cell and the source cell, when the load is balanced, the load in the target cell is balanced according to the balanced priority of the load from high to low, and better user perception can be obtained after the load with higher balanced priority is balanced to the target cell.
Fig. 2 shows a flow chart of a load balancing method according to another embodiment of the invention. In the embodiment of the invention, the target cells are multiple. As shown in fig. 2, the method comprises the steps of:
step 210: and determining a target cell with balanced load.
Step 220: and determining the cell types of the target cell and the source cell.
Step 230: and determining the transfer priority of each target cell according to the cell type of the source cell.
In this step, the handover priority indicates a priority of the target cell receiving the load of the source cell. If the source cell is an overlay cell, the transfer priority of a capacity layer cell of the plurality of target cells is higher than the transfer priority of the overlay cell. If the source cell is a capacity layer cell, the overlay layer cell of the plurality of target cells has a higher transfer priority than the capacity layer cell. By the method, the load in the overlay cell is preferentially balanced to the capacity layer cell, and the load of the capacity layer cell is preferentially balanced to the overlay cell, so that the success rate of accessing the load to the target cell is improved.
If the source cell is an overlay cell, the target cells are overlay cells, or the source cell is a capacity layer cell and the target cells are capacity layer cells, determining the transfer priority of each target cell according to the load utilization rate in the target cells. The target cell with low load utilization rate corresponds to a high transfer priority, and the target cell with high load utilization rate corresponds to a low transfer priority.
Step 240: and acquiring uplink RSRP of each load in the source cell.
Step 250: and performing coverage grade division on each load in the source cell according to the interval to which the uplink RSRP belongs to obtain the coverage grade corresponding to each load.
Step 260: and determining the balance priority of each load according to the coverage grade and the cell types of the target cell and the source cell.
In this step, the balancing priority of each load is determined according to the target cell with the highest transfer priority. The specific determination method is the same as the method in step 150 in the previous embodiment, and is not described herein again.
Step 270: and sequencing the target cells according to the transfer priority from high to low.
Step 280: and sequentially taking the sequenced target cells as access cells, and sequentially balancing the load to the access cells according to the sequence of the balancing priority from high to low until the balancing stop condition is met.
In this step, the first target cell which is ranked first is used as an access cell, and the load is balanced to the first target cell in sequence from high to low according to the balancing priority. And if the load utilization rate of the source cell is still higher than that of the source cell when the load utilization rate of the first target cell reaches the threshold value after balancing, taking the second target cell which is ranked and positioned at the second position as an access cell, continuing to perform load balancing, and so on until the balancing stop condition is met. And if the load utilization rate of the target cell does not reach the threshold value after balancing, and the load utilization rate of the source cell is lower than the load utilization rate of the source cell, completing the load balancing.
In the embodiment of the invention, a plurality of target cells with balanced load are provided, the transfer priority of each target cell is determined according to the cell type of the source cell, the load is preferentially balanced to the target cell with high transfer priority, the reliability of load access is improved, and the user perception is better after the load access.
Fig. 3 is a schematic structural diagram of a load balancing apparatus according to an embodiment of the present invention. As shown in fig. 3, the apparatus includes: a first determination module 310, a second determination module 320, an acquisition module 330, a partitioning module 340, a third determination module 350, and a load balancing module 360.
A first determining module 310, configured to determine a target cell for load balancing.
A second determining module 320, configured to determine cell types of the target cell and the source cell, where the cell types include a capacity layer cell and an overlay layer cell.
The obtaining module 330 is configured to obtain uplink RSRP of each load in the source cell.
A dividing module 340, configured to perform coverage level division on each load in the source cell according to the interval to which the uplink RSRP belongs, so as to obtain a coverage level corresponding to each load, where the coverage level is used to characterize the signal strength received by the target load.
A third determining module 350, configured to determine a balancing priority of each load according to the coverage class and the cell types of the target cell and the source cell.
And a load balancing module 360, configured to balance the load in the source cell to the target cell in sequence according to the balancing priorities from high to low until a balancing stop condition is met.
In an optional manner, the second determining module 320 is further configured to:
if the frequency band of the first cell is matched with at least one frequency band contained in a capacity layer, determining the cell type of the first cell as a capacity layer cell;
if the frequency band of the first cell is matched with at least one frequency band contained in a covering layer, determining that the cell type of the first cell is a covering layer cell;
the first cell is any one of a target cell or a source cell.
In an alternative manner, the third determining module 350 is further configured to: if the source cell is a covering layer cell and the target cell is a capacity layer cell, determining that the balancing priority corresponding to the load with high covering level is high priority and the balancing priority corresponding to the load with low covering level is low priority;
and if the source cell is a capacity layer cell and the target cell is an overlay cell, determining that the balance priority corresponding to the load with high coverage level is low priority and the balance priority corresponding to the load with low coverage level is high priority.
In an optional manner, the first determining module 310 is further configured to:
determining the load utilization rate of each different-frequency adjacent cell in the adjacent cell table;
and determining the pilot frequency adjacent cell with the load utilization rate lower than a threshold value as the target cell for load balancing.
In an alternative manner, the equalization stop condition includes:
and the load utilization rate of the source cell is less than or equal to the threshold value of the source cell in a preset time period, or the load utilization rate of the target cell reaches the threshold value of the target cell.
In an optional manner, there are a plurality of the target cells, and the apparatus further includes: a fourth determining module 370, configured to determine the transfer priority of each target cell according to the cell type of the source cell.
The load balancing module 360 is further configured to:
sequencing the target cells according to the sequence of the transfer priority from high to low;
sequentially taking the sequenced target cells as access cells, and sequentially balancing the load to the access cells according to the sequence of the balancing priority from high to low until the balancing stop condition is met
In an optional manner, the fourth determining module 370 is further configured to:
if the source cell is an overlay cell, the transfer priority of a capacity layer cell in the target cells is higher than that of the overlay cell;
and if the source cell is a capacity layer cell, the transfer priority of the overlay layer cell in the target cells is higher than that of the capacity layer cell. According to the embodiment of the invention, the load in the source cell is subjected to coverage grade division according to the uplink RSRP of each load in the source cell, the balanced priority of the load is determined according to the coverage grade and the cell types of the target cell and the source cell, when the load is balanced, the load in the target cell is balanced according to the balanced priority of the load from high to low, and better user perception can be obtained after the load with higher balanced priority is balanced to the target cell.
Fig. 4 is a schematic structural diagram of a computing device according to an embodiment of the present invention, where the specific embodiment of the present invention does not limit a specific implementation of the computing device.
As shown in fig. 4, the computing device may include: a processor (processor)402, a communication Interface 404, a memory 406, and a communication bus 408.
Wherein: the processor 402, communication interface 404, and memory 406 communicate with each other via a communication bus 408. A communication interface 404 for communicating with network elements of other devices, such as clients or other servers. The processor 402, configured to execute the program 410, may specifically perform the relevant steps in the embodiments of the load balancing method described above.
In particular, program 410 may include program code comprising computer-executable instructions.
The processor 402 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits determined to implement an embodiment of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 406 for storing a program 410. Memory 406 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
In particular, program 410 may be invoked by processor 402 to cause a computing device to perform steps 110-160 of fig. 1, steps 210-280 of fig. 2, and to implement the functionality of modules 310-370 of fig. 3.
An embodiment of the present invention provides a computer-readable storage medium, where the storage medium stores at least one executable instruction, and when the executable instruction runs on the computing device, the computing device is enabled to execute a load balancing method in any of the above method embodiments.
Embodiments of the present invention provide a computer program that can be invoked by a processor to enable a computing device to execute a load balancing method in any of the above method embodiments.
Embodiments of the present invention provide a computer program product comprising a computer program stored on a computer-readable storage medium, the computer program comprising program instructions that, when run on a computer, cause the computer to perform a method of load balancing in any of the above-mentioned method embodiments.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the devices in an embodiment may be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. A method of load balancing, the method comprising:
determining a target cell with balanced load;
determining cell types of the target cell and the source cell, wherein the cell types comprise a capacity layer cell and an overlay layer cell;
acquiring uplink RSRP of each load in the source cell;
performing coverage grade division on each load in the source cell according to the interval to which the uplink RSRP belongs to obtain a coverage grade corresponding to each load, wherein the coverage grade is used for representing the signal strength which can be received by the load;
determining the balancing priority of each load according to the coverage grade and the cell types of the target cell and the source cell;
and balancing the load in the source cell to the target cell in sequence from high to low according to the balancing priority until a balancing stop condition is met.
2. The method of claim 1, wherein the determining the cell classes of the target cell and the source cell comprises:
if the frequency band of the first cell is matched with at least one frequency band contained in a capacity layer, determining the cell type of the first cell as a capacity layer cell;
if the frequency band of the first cell is matched with at least one frequency band contained in a covering layer, determining that the cell type of the first cell is a covering layer cell;
the first cell is any one of a target cell or a source cell.
3. The method of claim 1, wherein determining a balancing priority for each load according to the coverage class and the cell categories of the target cell and the source cell comprises:
if the source cell is a covering layer cell and the target cell is a capacity layer cell, determining that the balancing priority corresponding to the load with high covering level is high priority and the balancing priority corresponding to the load with low covering level is low priority;
and if the source cell is a capacity layer cell and the target cell is an overlay cell, determining that the balance priority corresponding to the load with high coverage level is low priority and the balance priority corresponding to the load with low coverage level is high priority.
4. The method of claim 1, wherein the determining the target cell for load balancing comprises:
determining the load utilization rate of each different-frequency adjacent cell in the adjacent cell table;
and determining the pilot frequency adjacent cell with the load utilization rate lower than a threshold value as the target cell with balanced load.
5. The method of claim 1, wherein the equalization stop condition comprises:
and the load utilization rate of the source cell is less than or equal to the threshold value of the source cell in a preset time period, or the load utilization rate of the target cell reaches the threshold value of the target cell.
6. The method of claim 1, wherein if there are multiple target cells, after determining the cell classes of the target cell and the source cell, the method further comprises:
determining the transfer priority of each target cell according to the cell type of the source cell;
the balancing the load in the source cell to the target cell in sequence from high to low according to the balancing priority until a balancing stop condition is met includes:
sequencing the target cells according to the sequence of the transfer priority from high to low;
and sequentially taking the sequenced target cells as access cells, and sequentially balancing the load to the access cells according to the sequence of the balancing priority from high to low until the balancing stop condition is met.
7. The method of claim 6, wherein the determining the transfer priority of each target cell according to the category of the source cell comprises:
if the source cell is an overlay cell, the transfer priority of a capacity layer cell in the target cells is higher than that of the overlay cell;
and if the source cell is a capacity layer cell, the transfer priority of the overlay layer cell in the target cells is higher than that of the capacity layer cell.
8. A load balancing apparatus, the apparatus comprising:
the first determining module is used for determining a target cell with balanced load;
a second determining module, configured to determine cell types of the target cell and the source cell, where the cell types include a capacity layer cell and an overlay layer cell;
the acquisition module is used for acquiring uplink RSRP of each load in the source cell;
a dividing module, configured to perform coverage grade division on each load in a source cell according to an interval to which the uplink RSRP belongs to obtain a coverage grade corresponding to each load, where the coverage grade is used to characterize signal strength received by the target load;
a third determining module, configured to determine a balancing priority of each load according to the coverage level and the cell types of the target cell and the source cell;
and the load balancing module is used for sequentially balancing the load to the target cell according to the sequence of the balancing priority from high to low until a balancing stop condition is met.
9. A computing device, wherein the computing device comprises: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface are communicated with each other through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the load balancing method of any one of claims 1-7.
10. A computer-readable storage medium having stored thereon at least one executable instruction for performing the operations of the load balancing method of any one of claims 1-7.
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