CN112867064B - Load balancing method, device, storage medium and source base station - Google Patents
Load balancing method, device, storage medium and source base station Download PDFInfo
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- CN112867064B CN112867064B CN201911173551.7A CN201911173551A CN112867064B CN 112867064 B CN112867064 B CN 112867064B CN 201911173551 A CN201911173551 A CN 201911173551A CN 112867064 B CN112867064 B CN 112867064B
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- 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
- H04W28/082—Load balancing or load distribution among bearers or channels
Abstract
The embodiment of the invention provides a load balancing method, a load balancing device, a storage medium and a source base station. In the scheme of the embodiment of the invention, the maximum value is screened out by generating the utilization rate of a first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block according to the high-load cell information of the anchor point station, the time period to be predicted and the load increase factor, and the maximum value is determined as the first utilization rate; screening a maximum value from the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell, and determining the maximum value as a second utilization rate; if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, load balancing is carried out on the anchor point station high-load cell and the target cell, so that the anchor point station high-load cell can be accurately evaluated, and the load of the anchor point station high-load cell can be quickly and efficiently reduced.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of communications technologies, and in particular, to a load balancing method and apparatus, a storage medium, and a source base station.
[ background of the invention ]
A Non-independent (NSA) networking mode is a scheme for transitioning from a 4G network to a 5G network as a whole. In the NSA networking mode, 4G and 5G coexist. From this point of view, the 5G network of the NSA stage is actually an enhancement of the 4G network. In the 5G NSA networking mode, the control plane is anchored in the 4G network, the 5G carrier only carries user data, and the control signaling is still transmitted through the 4G network.
Due to the continuous increase of 4G users, the network load is continuously increased due to the service diversification requirement, and the resource utilization rate is limited due to the diversification of the deployment scene. Under the NSA networking mode, the performance of the anchor point station directly influences the user perception of the 5G service, and the load balancing method provided by the related technology has the problems of inaccurate evaluation, low efficiency and high load.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a load balancing method, an apparatus, a storage medium, and a source base station, so as to solve the problems of inaccurate evaluation, low efficiency, and still high load in the prior art.
In one aspect, an embodiment of the present invention provides a load balancing method, where the method includes: generating a first control channel unit utilization rate, a first uplink physical resource block utilization rate and a first downlink physical resource block utilization rate according to anchor point station high-load cell information, a time period to be predicted and a load increase factor;
acquiring the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of a target cell;
screening out a maximum value from the utilization rate of the first control channel unit, the utilization rate of the first uplink physical resource block and the utilization rate of the first downlink physical resource block, and determining the maximum value as the first utilization rate;
screening out a maximum value from the utilization rate of the second control channel unit, the utilization rate of the second uplink physical resource block and the utilization rate of the second downlink physical resource block, and determining the maximum value as the second utilization rate;
judging whether the difference value of the first utilization rate and the second utilization rate is larger than or equal to a utilization rate threshold value or not;
and if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, carrying out load balancing on the anchor point station high-load cell and the target cell.
Optionally, before obtaining the utilization rate of the control channel unit, the utilization rate of the uplink physical resource block, and the utilization rate of the downlink physical resource block in the time period to be predicted of the anchor point station high-load cell, the method further includes:
acquiring cell information of a cell to be predicted;
and generating anchor point station high-load cell information according to the cell information.
Optionally, load balancing is performed on the anchor point station high-load cell and the target cell, and specifically includes:
acquiring a base station identifier of a high-load cell of an anchor point station and a base station identifier of a target cell;
judging whether the base station identifier of the anchor point station high-load cell is the same as the base station identifier of the target cell;
if the base station identification of the anchor point station high-load cell is judged to be the same as the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell and the target cell under the source base station;
and if the base station identification of the anchor point station high-load cell is different from the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell under the source base station and the target cell under the target base station.
Optionally, load balancing is performed on the anchor point station high-load cell and the target cell under the source base station, and specifically includes:
receiving a measurement report reported by user equipment;
sending a switching request to a target cell, wherein the switching request carries a measurement report;
receiving a switching confirmation message sent by a target cell, wherein the switching confirmation message carries a cell number of the target cell;
and sending an intra-station switching command to the user equipment, wherein the intra-station switching command carries the cell number of the target cell so that the user equipment can access the target cell according to the cell number of the target cell.
Optionally, load balancing is performed on the anchor point station high-load cell under the source base station and the target cell under the target base station, which specifically includes:
receiving a measurement report reported by user equipment;
sending a switching request to a target base station, wherein the switching request carries a measurement report;
receiving a switching confirmation message sent by a target base station, wherein the switching confirmation message carries a cell number of a target cell;
sending a release request to the auxiliary base station so that the auxiliary base station can release the connection with the auxiliary base station;
sending an inter-station switching command to user equipment, wherein the inter-station switching command carries a cell number of a target cell so that the user equipment can access the target cell according to the cell number of the target cell;
receiving a user context release request sent by a target base station;
and sending a user context release request to the secondary base station so that the secondary base station can release the user context.
Optionally, after sending the station switching command to the user equipment, the method further includes:
judging whether a time period between a first time point and a second time point is within a load balancing validity period or not, wherein the first time point comprises the moment of carrying out load balancing on an anchor point station high-load cell and a target cell under a source base station, and the second time point comprises the moment of sending a switching command into a user equipment;
and if the time period is within the effective period of load balancing, executing the step of acquiring the cell information of the cell to be predicted.
Optionally, after sending the user context release request to the secondary base station, the method further includes:
judging whether a time period between a first time point and a second time point is within a load balancing validity period or not, wherein the first time point comprises the moment of carrying out load balancing on an anchor point station high-load cell under a source base station and a target cell under a target base station, and the second time point comprises the moment of sending a user context release request to a secondary base station;
and if the time period is within the effective period of load balancing, executing the step of acquiring the cell information of the cell to be predicted.
In another aspect, an embodiment of the present invention provides a load balancing apparatus, including:
the first generation unit is used for generating a first control channel unit utilization rate, a first uplink physical resource block utilization rate and a first downlink physical resource block utilization rate according to the anchor point station high-load cell information, the time period to be predicted and the load increase factor;
a first obtaining unit, configured to obtain a second control channel unit utilization rate, a second uplink physical resource block utilization rate, and a second downlink physical resource block utilization rate of a target cell;
the first screening unit is used for screening out a maximum value from the utilization rate of the first control channel unit, the utilization rate of the first uplink physical resource block and the utilization rate of the first downlink physical resource block, and determining the maximum value as the first utilization rate;
the second screening unit is used for screening out the maximum value from the utilization rate of the second control channel unit, the utilization rate of the second uplink physical resource block and the utilization rate of the second downlink physical resource block, and determining the maximum value as the second utilization rate;
the first judgment unit is used for judging whether the difference value of the first utilization rate and the second utilization rate is larger than or equal to a utilization rate threshold value or not;
and the balancing unit is used for carrying out load balancing on the anchor point station high-load cell and the target cell if the difference value between the first utilization rate and the second utilization rate is judged to be greater than or equal to the utilization rate threshold value.
On the other hand, an embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the load balancing method described above.
In another aspect, an embodiment of the present invention provides a source base station, including a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control execution of the program instructions, where the program instructions are loaded and executed by the processor to implement the steps of the load balancing method described above.
In the scheme of the embodiment of the invention, according to the high-load cell information of the anchor point station, the time period to be predicted and the load increase factor, the utilization rate of a first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block are generated, the maximum value is screened out, and the maximum value is determined as the first utilization rate; screening out a maximum value from the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell, and determining the maximum value as a second utilization rate; if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, load balancing is carried out on the anchor point station high-load cell and the target cell, so that the anchor point station high-load cell can be accurately evaluated, and the load of the anchor point station high-load cell can be quickly and efficiently reduced.
[ description of the drawings ]
Fig. 1 is a flowchart of a load balancing method according to an embodiment of the present invention;
fig. 2 is a flowchart of another load balancing method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a load balancing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a source base station according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used to describe the set thresholds in the embodiments of the present invention, the set thresholds should not be limited to these terms. These terms are used only to distinguish the set thresholds from each other. For example, the first set threshold may also be referred to as the second set threshold, and similarly, the second set threshold may also be referred to as the first set threshold, without departing from the scope of embodiments of the present invention.
Fig. 1 is a flowchart of a load balancing method according to an embodiment of the present invention, as shown in fig. 1, the method includes:
And 104, screening out a maximum value from the utilization rate of the second control channel unit, the utilization rate of the second uplink physical resource block and the utilization rate of the second downlink physical resource block, and determining the maximum value as the second utilization rate.
And 105, judging whether the difference value of the first utilization rate and the second utilization rate is greater than or equal to a utilization rate threshold value.
And 106, if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, carrying out load balancing on the anchor point station high-load cell and the target cell.
In the scheme of the embodiment of the invention, according to the high-load cell information of the anchor point station, the time period to be predicted and the load increase factor, the utilization rate of a first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block are generated, the maximum value is screened out, and the maximum value is determined as the first utilization rate; screening a maximum value from the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell, and determining the maximum value as a second utilization rate; if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, load balancing is carried out on the anchor point station high-load cell and the target cell, so that the anchor point station high-load cell can be accurately evaluated, and the load of the anchor point station high-load cell can be quickly and efficiently reduced.
Fig. 2 is a flowchart of another load balancing method according to an embodiment of the present invention, as shown in fig. 2, the method includes:
In this embodiment, each step is performed by the source base station.
In this embodiment, index data of a high-load cell of a historical anchor point station is acquired from a database. The index data of the high-load cell of the historical anchor point station comprises longitude, latitude, azimuth, control channel unit utilization rate, uplink physical resource block utilization rate, downlink physical resource block utilization rate and user number.
Specifically, index data of the high-load cell of the historical anchor point station is input into a neural network algorithm for training, and an identification model of the high-load cell of the anchor point station is constructed.
And 203, constructing a prediction model of the high-load cell of the anchor point station according to index data of the high-load cell of the historical anchor point station, a Long Short-Term Memory (LSTM) algorithm, an autoregressive integral sliding average model and a Kalman filtering algorithm.
Specifically, index data of a high-load cell of a historical anchor point station is input into an LSTM algorithm, and a first time rule is output; inputting index data of a high-load cell of a historical anchor station and a first time rule into an autoregressive integral sliding average model, and outputting a second time rule; and inputting the index data of the high-load cell of the historical anchor point station and the second time rule into a Kalman filtering algorithm for training, and constructing a prediction model of the high-load cell of the anchor point station.
And further, inputting index data of the high-load cell of the historical anchor point station into the prediction model of the high-load cell of the anchor point station, and outputting a load increase factor.
And step 204, acquiring cell information of the cell to be predicted.
In this embodiment, the cell to be predicted is an arbitrarily selected cell.
In this embodiment, the cell information includes: whether the number of users is the anchor point station, the utilization rate of the control channel unit, the utilization rate of the uplink physical resource block, the utilization rate of the downlink physical resource block and the number of users.
And step 205, generating anchor point station high-load cell information according to the cell information of the cell to be predicted.
Specifically, cell information of a cell to be predicted is input into an anchor station high-load cell identification model, and anchor station high-load cell information is output.
In this embodiment, step 205 specifically includes:
step 2051, the identification model of the anchor point station high-load cell identifies whether the cell to be predicted is the anchor point station, if not, the process is ended; if yes, go on to step 2052.
And step 2052, screening a maximum value from the utilization rate of the control channel unit, the utilization rate of the uplink physical resource block and the utilization rate of the downlink physical resource block, and determining the maximum value as the maximum utilization rate.
Step 2053, determining whether the maximum utilization rate is greater than a preset utilization rate threshold value and the number of users is greater than a preset user number threshold value, if yes, continuing to execute step 2054; if not, the process ends.
If the maximum utilization rate is judged to be less than or equal to the preset utilization rate threshold value, or the number of the users is less than or equal to the user number threshold value, the cell is not the anchor point station high-load cell.
Optionally, the preset utilization threshold is 60%, and the preset number of users threshold is 50.
And step 2054, taking the cell to be predicted as the high-load cell of the anchor point station, taking the cell information of the cell to be predicted as the high-load cell information of the anchor point station, and outputting the high-load cell information of the anchor point station.
And step 206, generating a first control channel unit utilization rate, a first uplink physical resource block utilization rate and a first downlink physical resource block utilization rate according to the anchor point station high-load cell information, the time period to be predicted and the load increase factor.
Specifically, the information of the anchor station high-load cell, the time period to be predicted and the load increase factor are input into the anchor station high-load cell prediction model, and the utilization rate of the first control channel unit, the utilization rate of the first uplink physical resource block and the utilization rate of the first downlink physical resource block are output.
In this embodiment, the time period to be predicted is a time period in which it is required to predict whether a high load will occur in the high-load cell of the anchor point station.
And step 207, acquiring the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell.
In this embodiment, a cell with the highest overlapping coverage with a high-load cell of an anchor point station is selected as a target cell.
And 208, screening a maximum value from the first control channel unit utilization rate, the first uplink physical resource block utilization rate and the first downlink physical resource block utilization rate, and determining the maximum value as the first utilization rate.
In this embodiment, the execution sequence between step 206 and step 209 may be changed, for example: step 207 may be performed before step 206; step 209 may be performed before step 208; step 208 may be performed before step 207; steps 207 and 209 may be performed before steps 206 and 208.
In this embodiment, the difference between the first utilization rate and the second utilization rate is calculated by subtracting the second utilization rate from the first utilization rate.
Optionally, the utilization threshold is 20%.
And step 211, acquiring the base station identifier of the anchor point station high-load cell and the base station identifier of the target cell.
In this embodiment, if the base station identifier of the anchor point station high-load cell is the same as the base station identifier of the target cell, it indicates that the anchor point station high-load cell and the target cell belong to the same base station, that is, the anchor point station high-load cell and the target cell belong to the source base station; if the base station identifier of the anchor point station high-load cell is different from the base station identifier of the target cell, the anchor point station high-load cell and the target cell belong to different base stations, namely the anchor point station high-load cell belongs to the source base station, and the target cell belongs to the target base station.
In this embodiment, step 213 specifically includes:
step 2131, receiving a measurement report reported by the user equipment.
Step 2132, sending a handover request to the target cell, where the handover request carries the measurement report.
Step 2133, receiving a handover confirmation message sent by the target cell, where the handover confirmation message carries the cell number of the target cell.
And 2134, sending an intra-site switching command to the user equipment, wherein the intra-site switching command carries the cell number of the target cell, so that the user equipment can access the target cell according to the cell number of the target cell.
And step 214, carrying out load balancing on the anchor point station high-load cell under the source base station and the target cell under the target base station.
In this embodiment, step 214 specifically includes:
step 2141, sending the measurement event to the user equipment, so that the user equipment can generate a measurement report according to the measurement event.
Step 2142, receiving the measurement report reported by the user equipment.
Step 2143, a handover request is sent to the target base station, and the handover request carries a measurement report.
Further, after receiving the handover request, the target base station sends a change request to the secondary base station, so that the secondary base station sends a change confirmation message to the target base station. The change request comprises an encryption parameter for the auxiliary base station to update the encryption parameter of the auxiliary base station into the encryption parameter in the change request, and the auxiliary base station sends a change confirmation message to the target base station after the encryption parameter is updated.
Step 2144, receiving a handover confirmation message sent by the target base station, wherein the handover confirmation message carries the cell number of the target cell.
Step 2145, a release request is sent to the secondary base station.
In this step, the secondary base station releases the connection with the source base station according to the release request.
2146, sending an inter-station handover command to the ue, where the inter-station handover command carries a cell number of the target cell, so that the ue accesses the target cell according to the cell number of the target cell and sends a handover complete message to the target cell.
Step 2147, receiving a user context release request sent by the target base station.
Step 2148, sending a user context release request to the secondary base station for the secondary base station to release the user context.
In the embodiment, in the process of carrying out load balancing under the source base station and the target base station on the anchor point station high-load cell and the target cell, the auxiliary base stations are carried to be switched together, so that the switching process is simplified, the influence on a user is reduced, and the user perception is enhanced.
In this embodiment, the first time point includes a time point of performing load balancing on an anchor point station high-load cell and a target cell under the source base station, and the second time point includes a time point of sending a handover command to the user equipment; or the first time point comprises the moment of carrying out load balancing on the anchor point station high-load cell under the source base station and the target cell under the target base station, and the second time point comprises the moment of sending the user context release request to the auxiliary base station.
In this embodiment, the utilization rate of the control channel unit, the utilization rate of the uplink physical resource block, and the utilization rate of the downlink physical resource block in the index data of the high-load cell of the historical anchor point station are input into the prediction model of the high-load cell of the anchor point station, and the validity period of load balancing is output.
For example, the output load balancing validity period is 1000 milliseconds, and if the first time point is 8 hours, 0 minutes, 0 seconds and 0 milliseconds, and the second time point is 8 hours, 0 minutes, 0 seconds and 50 milliseconds, the time period between the first time point and the second time point is 50 milliseconds, and the process continues to execute step 204 within the load balancing validity period.
For example, the output load balancing validity period is 1000 milliseconds, and if the first time point is 8 hours, 0 minutes, 0 seconds and 0 milliseconds, and the second time point is 8 hours, 0 minutes, 1 second and 10 milliseconds, the time period between the first time point and the second time point is 1010 milliseconds, and the flow is not within the load balancing validity period, and the flow ends.
In the scheme of the embodiment of the invention, according to the high-load cell information of the anchor point station, the time period to be predicted and the load increase factor, the utilization rate of a first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block are generated, the maximum value is screened out, and the maximum value is determined as the first utilization rate; screening out a maximum value from the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell, and determining the maximum value as a second utilization rate; if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, load balancing is carried out on the anchor point station high-load cell and the target cell, so that the anchor point station high-load cell can be accurately evaluated, and the load of the anchor point station high-load cell can be quickly and efficiently reduced.
Fig. 3 is a schematic structural diagram of a load balancing apparatus according to an embodiment of the present invention, the apparatus is configured to execute the load balancing method, and as shown in fig. 3, the apparatus includes: the device comprises a first generating unit 11, a first acquiring unit 12, a first screening unit 13, a second screening unit 14, a first judging unit 15 and an equalizing unit 16.
The first generating unit 11 is configured to generate a first control channel unit utilization rate, a first uplink physical resource block utilization rate, and a first downlink physical resource block utilization rate according to the anchor point station high-load cell information, the time period to be predicted, and the load increase factor. The first obtaining unit 12 is configured to obtain a second control channel unit utilization rate, a second uplink physical resource block utilization rate, and a second downlink physical resource block utilization rate of the target cell.
The first screening unit 13 is configured to screen a maximum value from the first control channel unit utilization rate, the first uplink physical resource block utilization rate, and the first downlink physical resource block utilization rate, and determine the maximum value as the first utilization rate.
The second screening unit 14 is configured to screen a maximum value from the second control channel unit utilization rate, the second uplink physical resource block utilization rate, and the second downlink physical resource block utilization rate, and determine the maximum value as the second utilization rate.
The first determining unit 15 is configured to determine whether a difference between the first utilization rate and the second utilization rate is greater than or equal to a utilization rate threshold.
The balancing unit 16 is configured to perform load balancing on the anchor point station high-load cell and the target cell if it is determined that the difference between the first utilization rate and the second utilization rate is greater than or equal to the utilization rate threshold value.
In the embodiment of the present invention, the apparatus further includes: a second acquisition unit 17 and a second generation unit 18.
The second obtaining unit 17 is configured to obtain cell information of a cell to be predicted.
The second generating unit 18 is configured to generate anchor point station high-load cell information according to the cell information.
In the embodiment of the present invention, the balancing unit 16 is specifically configured to obtain a base station identifier of a high-load cell of an anchor point station and a base station identifier of a target cell; judging whether the base station identifier of the anchor point station high-load cell is the same as the base station identifier of the target cell; if the base station identification of the anchor point station high-load cell is judged to be the same as the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell and the target cell under the source base station; and if the base station identification of the anchor point station high-load cell is different from the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell under the source base station and the target cell under the target base station.
In the embodiment of the present invention, the equalizing unit 16 is further specifically configured to receive a measurement report reported by the user equipment; sending a switching request to a target cell, wherein the switching request carries a measurement report; receiving a switching confirmation message sent by a target cell, wherein the switching confirmation message carries a cell number of the target cell; and sending an intra-station switching command to the user equipment, wherein the intra-station switching command carries the cell number of the target cell so that the user equipment can access the target cell according to the cell number of the target cell.
In the embodiment of the present invention, the equalizing unit 16 is further specifically configured to receive a measurement report reported by the user equipment; sending a switching request to a target base station, wherein the switching request carries a measurement report; receiving a switching confirmation message sent by a target base station, wherein the switching confirmation message carries a cell number of a target cell; sending a release request to the auxiliary base station so that the auxiliary base station can release the connection with the auxiliary base station; sending an inter-station switching command to user equipment, wherein the inter-station switching command carries a cell number of a target cell so that the user equipment can access the target cell according to the cell number of the target cell; receiving a user context release request sent by a target base station; and sending a user context release request to the secondary base station so that the secondary base station can release the user context.
In the embodiment of the present invention, the apparatus further includes: a second judgment unit 19.
The second determining unit 19 is configured to determine whether a time period between a first time point and a second time point is within a load balancing validity period, where the first time point includes a time when load balancing is performed on a high-load cell of an anchor point station and a target cell under a source base station, and the second time point includes a time when a handover command is sent to a station in the user equipment; and if the time period is within the effective period of load balancing, triggering the second obtaining unit 17 to execute the step of obtaining the cell information of the cell to be predicted.
In this embodiment of the present invention, the second determining unit 19 is further configured to determine whether a time period between the first time point and the second time point is within a validity period of load balancing, where the first time point includes a time when load balancing is performed on a high-load cell of the anchor point station under the source base station and a target cell under the target base station, and the second time point includes a time when a user context release request is sent to the secondary base station; if the time period is determined to be within the validity period of load balancing, the second acquiring unit 17 is started to perform the step of acquiring the cell information of the cell to be predicted.
In the scheme of the embodiment of the invention, according to the high-load cell information of the anchor point station, the time period to be predicted and the load increase factor, the utilization rate of a first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block are generated, the maximum value is screened out, and the maximum value is determined as the first utilization rate; screening a maximum value from the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of the target cell, and determining the maximum value as a second utilization rate; if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to the utilization rate threshold value, load balancing is carried out on the anchor point station high-load cell and the target cell, so that the anchor point station high-load cell can be accurately evaluated, and the load of the anchor point station high-load cell can be quickly and efficiently reduced.
An embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, where, when the program runs, a device on which the storage medium is located is controlled to execute each step of the above embodiment of the load balancing method, and for specific description, reference may be made to the above embodiment of the load balancing method.
An embodiment of the present invention provides a source base station, including a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control execution of the program instructions, and the program instructions are loaded and executed by the processor to implement each step of the embodiment of the load balancing method.
Fig. 4 is a schematic diagram of a source base station according to an embodiment of the present invention. As shown in fig. 4, the source base station 20 of this embodiment includes: the processor 21, the memory 22, and the computer program 23 stored in the memory 22 and capable of running on the processor 21, where the computer program 23 is executed by the processor 21 to implement the method applied to load balancing in the embodiments, and in order to avoid repetition, the details are not repeated herein. Alternatively, the computer program is executed by the processor 21 to implement the functions of the models/units applied to the load balancing apparatus in the embodiments, which are not described herein again to avoid redundancy.
The source base station 20 includes, but is not limited to, a processor 21, a memory 22. Those skilled in the art will appreciate that fig. 4 is merely an example of the source base station 20 and does not constitute a limitation of the source base station 20 and may include more or less components than shown, or combine certain components, or different components, e.g., the source base station may also include input output devices, network access devices, buses, etc.
The Processor 21 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 22 may be an internal storage unit of the source base station 20, such as a hard disk or a memory of the source base station 20. The memory 22 may also be an external storage device of the source base station 20, such as a plug-in hard disk provided on the source base station 20, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 22 may also include both an internal memory unit of the source base station 20 and an external memory device. The memory 22 is used for storing computer programs and other programs and data required by the source base station. The memory 22 may also be used to temporarily store data that has been output or is to be output.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of load balancing, the method comprising:
generating a first control channel unit utilization rate, a first uplink physical resource block utilization rate and a first downlink physical resource block utilization rate according to anchor point station high-load cell information, a time period to be predicted and a load increase factor;
acquiring the utilization rate of a second control channel unit, the utilization rate of a second uplink physical resource block and the utilization rate of a second downlink physical resource block of a target cell;
screening out a maximum value from the first control channel unit utilization rate, the first uplink physical resource block utilization rate and the first downlink physical resource block utilization rate, and determining the maximum value as a first utilization rate;
screening out a maximum value from the utilization rate of the second control channel unit, the utilization rate of the second uplink physical resource block and the utilization rate of the second downlink physical resource block, and determining the maximum value as the second utilization rate;
judging whether the difference value of the first utilization rate and the second utilization rate is larger than or equal to a utilization rate threshold value or not;
if the difference value between the first utilization rate and the second utilization rate is judged to be larger than or equal to a utilization rate threshold value, carrying out load balancing on the anchor point station high-load cell and the target cell;
before generating the first control channel unit utilization rate, the first uplink physical resource block utilization rate and the first downlink physical resource block utilization rate according to the anchor point station high-load cell information, the time period to be predicted and the load increase factor, the method further comprises the following steps:
inputting index data of a high-load cell of a historical anchor point station into a long-short term memory network (LSTM) algorithm, and outputting a first time rule;
inputting the index data of the high-load cell of the historical anchor point station and the first time rule into an autoregressive integral sliding average model, and outputting a second time rule;
inputting the index data of the high-load cell of the historical anchor station and the second time rule into a Kalman filtering algorithm for training, and constructing a prediction model of the high-load cell of the anchor station;
and inputting the index data of the historical anchor point station high-load cell into the anchor point station high-load cell prediction model, and outputting the load increase factor.
2. The load balancing method according to claim 1, wherein before obtaining the utilization ratio of the control channel unit, the utilization ratio of the uplink physical resource block, and the utilization ratio of the downlink physical resource block in the time period to be predicted of the high-load cell of the anchor station, the method further comprises:
acquiring cell information of a cell to be predicted;
and generating anchor point station high-load cell information according to the cell information.
3. The load balancing method according to claim 2, wherein the load balancing the anchor station high-load cell and the target cell specifically includes:
acquiring a base station identifier of the anchor point station high-load cell and a base station identifier of a target cell;
judging whether the base station identifier of the anchor point station high-load cell is the same as the base station identifier of the target cell;
if the base station identification of the anchor point station high-load cell is judged to be the same as the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell and the target cell under the source base station;
and if the base station identification of the anchor point station high-load cell is different from the base station identification of the target cell, carrying out load balancing on the anchor point station high-load cell under the source base station and the target cell under the target base station.
4. The load balancing method according to claim 3, wherein the load balancing for the anchor point station high load cell and the target cell under the source base station specifically includes:
receiving a measurement report reported by user equipment;
sending a switching request to a target cell, wherein the switching request carries the measurement report;
receiving a switching confirmation message sent by the target cell, wherein the switching confirmation message carries the cell number of the target cell;
and sending an intra-site switching command to the user equipment, wherein the intra-site switching command carries the cell number of the target cell, so that the user equipment can access the target cell according to the cell number of the target cell.
5. The load balancing method according to claim 3, wherein the load balancing the anchor point station high-load cell under the source base station and the target cell under the target base station specifically includes:
receiving a measurement report reported by user equipment;
sending a switching request to a target base station, wherein the switching request carries the measurement report;
receiving a switching confirmation message sent by a target base station, wherein the switching confirmation message carries a cell number of a target cell;
sending a release request to a secondary base station, so that the secondary base station can release connection with the secondary base station;
sending an inter-station switching command to user equipment, wherein the inter-station switching command carries a cell number of the target cell so that the user equipment can access the target cell according to the cell number of the target cell;
receiving a user context release request sent by a target base station;
and sending a user context release request to the secondary base station so that the secondary base station can release the user context.
6. The method of claim 4, wherein after the sending a switch command to the UE, further comprising:
judging whether a time period between a first time point and a second time point is within a load balancing validity period, wherein the first time point comprises the moment of carrying out load balancing on an anchor point station high-load cell and a target cell under a source base station, and the second time point comprises the moment of sending a switching command into a user equipment sending station;
and if the time period is judged to be within the effective period of load balancing, executing the step of acquiring the cell information of the cell to be predicted.
7. The load balancing method according to claim 5, further comprising, after said sending a user context release request to the secondary base station:
judging whether a time period between a first time point and a second time point is within a load balancing validity period, wherein the first time point comprises the time of carrying out load balancing on an anchor point station high-load cell under a source base station and a target cell under a target base station, and the second time point comprises the time of sending a user context release request to a secondary base station;
and if the time period is within the effective period of load balancing, executing the step of acquiring the cell information of the cell to be predicted.
8. A load balancing apparatus, the apparatus comprising:
the first generation unit is used for generating a first control channel unit utilization rate, a first uplink physical resource block utilization rate and a first downlink physical resource block utilization rate according to the anchor point station high-load cell information, the time period to be predicted and the load increase factor;
a first obtaining unit, configured to obtain a second control channel unit utilization rate, a second uplink physical resource block utilization rate, and a second downlink physical resource block utilization rate of a target cell;
the first screening unit is used for screening out a maximum value from the utilization rate of the first control channel unit, the utilization rate of a first uplink physical resource block and the utilization rate of a first downlink physical resource block, and determining the maximum value as the first utilization rate;
the second screening unit is used for screening out a maximum value from the utilization rate of the second control channel unit, the utilization rate of the second uplink physical resource block and the utilization rate of the second downlink physical resource block, and determining the maximum value as a second utilization rate;
the first judgment unit is used for judging whether the difference value of the first utilization rate and the second utilization rate is larger than or equal to a utilization rate threshold value or not;
the balancing unit is used for carrying out load balancing on the anchor point station high-load cell and the target cell if the difference value between the first utilization rate and the second utilization rate is judged to be greater than or equal to a utilization rate threshold value;
the first generation unit is also used for inputting index data of the high-load cell of the historical anchor point station into an LSTM algorithm of a long-short term memory network and outputting a first time rule; inputting the index data of the high-load cell of the historical anchor point station and the first time law into an autoregressive integral sliding average model, and outputting a second time law; inputting the index data of the high-load cell of the historical anchor station and the second time rule into a Kalman filtering algorithm for training, and constructing a prediction model of the high-load cell of the anchor station; and inputting the index data of the historical anchor station high-load cell into the anchor station high-load cell prediction model, and outputting the load increase factor.
9. A storage medium, comprising a stored program, wherein when the program is executed, a device in which the storage medium is located is controlled to execute the load balancing method according to any one of claims 1 to 7.
10. A source base station comprising a memory for storing information including program instructions and a processor for controlling the execution of the program instructions, wherein the program instructions when loaded and executed by the processor implement the steps of the load balancing method of any one of claims 1 to 7.
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