CN109862594B - Load adjusting method and device - Google Patents
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Abstract
The embodiment of the invention provides a load adjustment method and equipment, wherein the method comprises the steps of configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; the cell priority corresponding to the capacity expansion base station is configured as the highest priority; configuring reselection parameters of the cells according to the priorities of the cells so as to enable an idle terminal to preferentially reside in the cell with the highest priority; and if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal under the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the cell. The load adjusting method provided by the embodiment of the invention can enable each cell to meet the requirement of the preset load capacity, thereby realizing the load adjustment of the cells corresponding to the base stations of different manufacturers.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a load adjusting method and device.
Background
The load adjustment means that the load distribution among multiple cells is unbalanced, even a larger proportion of super-busy cells or super-idle cells are generated, the utilization rate of the super-busy cells is reduced and the utilization rate of the super-idle cells is improved through certain coordination, so that the load sharing among the cells is more balanced, and a proper balance point is found between the resource utilization rate and the service quality (QoS and call drop rate) of the cells.
In an existing Load adjustment scheme, Load information interaction is performed through an X2 interface of an eNodeB, four optional loads are defined in a third Generation Partnership Project (3 GPP), which are respectively an air interface Resource state (Radio Resource Status), an S1 interface Load Indicator (S1 TNL Load Indicator), a Hardware Load Indicator (Hardware Load Indicator), and a Composite Available Capacity Group (cell integrated Available Capacity), and a source base station requests 1 or more types of Load information from a target base station through an X2 interface.
However, there is a significant difference between the choices of the manufacturers, and this difference may cause failure of load information interaction between the manufacturers, so that the load adjustment effect between the base station devices of different manufacturers is not ideal.
Disclosure of Invention
The embodiment of the invention provides a load adjusting method and equipment, which are used for improving the effect of load adjustment among base station equipment of different manufacturers.
In a first aspect, an embodiment of the present invention provides a load adjustment method, including:
configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; the cell priority corresponding to the capacity expansion base station is configured as the highest priority;
configuring reselection parameters of the cells according to the priorities of the cells so as to enable an idle terminal to preferentially reside in the cell with the highest priority;
and if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal under the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the cell.
In one possible design, the predetermined amount of loading includes at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
In one possible design, the configuring the reselection parameters for the cells according to the priorities of the cells includes:
configuring the cell reselection priorities of the cells according to the priorities of the cells, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different;
and configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all idle-state terminals of each cell relative to the highest-priority cell, wherein the pilot frequency point high-priority reselection threshold of the highest-priority cell is lower than the minimum signal strength of all idle-state terminals of each cell relative to the signal strength of the highest-priority cell.
In one possible design, the method further includes:
if the cell meets at least one of the predetermined conditions, determining that the current load capacity of the cell exceeds the corresponding predetermined load capacity, wherein the conditions comprise:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
In a possible design, the adjusting the handover parameter of the cell to be adjusted so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted handover parameter, and the current load capacity of each cell after the switching does not exceed the predetermined load capacity of the cell includes:
reducing the pilot frequency switching threshold of the cell to be adjusted by a preset step length;
and obtaining the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
In one possible design, the method further includes:
and setting corresponding preset load capacity for each cell according to the priority of each cell and a strategy that the higher the priority is, the higher the preset load capacity is.
In a second aspect, an embodiment of the present invention provides a load adjusting apparatus, including:
the priority configuration module is used for configuring the priority for each cell according to the capacity expansion information of the base station corresponding to each cell; the cell priority corresponding to the capacity expansion base station is configured as the highest priority;
a reselection parameter configuration module, configured to configure reselection parameters of the cells according to the priorities of the cells, so that an idle terminal preferentially resides in a cell with a highest priority;
and the switching parameter adjusting module is used for adjusting the switching parameters of the cells to be adjusted if the cells to be adjusted exist in the cells, the current load capacity of which exceeds the corresponding preset load capacity, so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the terminal.
In one possible design, the predetermined amount of loading includes at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
In one possible design, the reselection parameter configuration module is specifically configured to:
configuring the cell reselection priorities of the cells according to the priorities of the cells, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different;
configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all current idle-state terminals of each cell relative to the highest-priority cell so as to enable the idle-state terminals to preferentially reside in the highest-priority cell; the pilot frequency point high priority reselection threshold of the highest priority cell is lower than the minimum signal strength of all idle terminals relative to the signal strength of the highest priority cell.
In one possible design, the apparatus further includes:
a determining module, configured to determine that a current load amount of a cell exceeds a corresponding predetermined load amount if the cell meets at least one of predetermined conditions, where the conditions include:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
In one possible design, the handover parameter adjustment module is specifically configured to:
if the cells to be adjusted with the current load exceeding the corresponding preset load exist in each cell, reducing the pilot frequency switching threshold of the cells to be adjusted by preset step length;
and obtaining the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
In one possible design, the apparatus further includes:
and the preset load configuration module is used for setting corresponding preset load capacity for each cell according to the priority of each cell and a strategy that the higher the priority is, the higher the preset load capacity is.
In a third aspect, an embodiment of the present invention provides a load adjusting apparatus, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the method as set forth in the first aspect above and in various possible designs of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the method according to the first aspect and various possible designs of the first aspect are implemented.
In the load adjustment method and device provided by this embodiment, a cell corresponding to the expanded base station is used as a highest priority cell, and then a reselection parameter is configured, so that an idle terminal preferentially resides in the highest priority cell. And adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the requirement of the preset load capacity according to the current load capacity and the preset load capacity of each cell so as to switch the terminal in the service state from the overloaded high-priority cell to the low-priority cell. The method can enable each cell to meet the requirement of preset load capacity, and further realize load adjustment of cells corresponding to base stations of different manufacturers.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1-a to fig. 1-B are schematic diagrams illustrating load information interaction between base stations according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a load adjustment method according to another embodiment of the present invention;
fig. 3 is a schematic flowchart of a load adjustment method according to still another embodiment of the present invention;
fig. 4 is a schematic flowchart of a load adjustment method according to another embodiment of the present invention;
fig. 5 is a schematic flowchart of a load adjustment method according to another embodiment of the present invention;
fig. 6 is a flowchart illustrating a load adjustment method according to still another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a load adjusting apparatus according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a load adjusting apparatus according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a load adjusting apparatus according to still another embodiment of the present invention;
fig. 10 is a schematic diagram of a hardware structure of a load adjusting apparatus according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
Fig. 1-a to fig. 1-B are schematic diagrams of load information interaction between base stations according to an embodiment of the present invention. The interaction of load information between the base stations is realized through an X2 interface, and an X2 interface is established for a Long Term Evolution (LTE) network element to facilitate the work communication of a hierarchical network element and break through the communication barrier between the base stations in the past wireless systems. LTE is a long term evolution of The Universal Mobile Telecommunications System (UMTS) technology standard established by The3rd Generation Partnership Project (3 GPP) organization. The X2 interface control plane may monitor resource states and load states between base stations, and is used as a basis for determining load adjustment, load control, or admission control between base stations. And the load information interaction process comprises a load request process and a load updating process. As shown in fig. 1-a, the load request process includes: a first base station sends load request information to a second base station, wherein the load request information comprises a load type and a load interaction period; and after receiving the load request information, the second base station sends load response information to the first base station. As shown in fig. 1-B, the load update procedure includes: and the second base station measures the load condition of each cell in the base station according to the load request information sent by the first base station, and feeds back load response information to the first base station according to the load interaction period.
Load Balance (LB) means that the Load distribution among multiple cells is unbalanced, even a large proportion of super-busy cells or super-idle cells have appeared, and by means of certain coordination, the utilization rate of the super-busy cells is reduced, and the utilization rate of the super-idle cells is improved, so that the Load sharing among the cells is more balanced, and a proper Balance point is found between the resource utilization rate and the service quality of the cells. That is, the problem to be solved by load adjustment is to pull the traffic of the cell with high load to the cell with lower utilization rate. A cell, also called a cell, refers to an area covered by one or a part of a base station (sector antenna) in a cellular mobile communication system, in which a UE can reliably communicate with the base station via a radio channel. In order to achieve load adjustment, each cell can perform load adjustment by performing interaction of load information between base stations, and switches users with overload to a base station cell with lower load.
Therefore, the interaction of the load information among the base stations is a precondition for realizing the load adjustment of each cell. The 3GPP defines four optional Load information types, which are respectively an air interface Resource Status (Radio Resource Status), an S1 interface Load indication (S1 TNL Load Indicator), a Hardware Load Indicator, and a Composite Available Capacity Group (cell integrated Available Capacity). The source base station can request at least one of the four kinds of load information from the target base station through an X2 interface, however, the selection of the load information class selection by the base station equipment manufactured by each manufacturer is different. The interaction of the load information between different manufacturers fails, and the load adjustment cannot be effectively realized. Based on this, the embodiment of the present invention provides a load adjustment method to implement load adjustment of base stations of different manufacturers.
The following description will use specific examples to illustrate the load adjustment method provided by the embodiments of the present invention.
Fig. 2 is a schematic flow chart of a load adjustment method according to another embodiment of the present invention. As shown in fig. 2, the method includes:
s201, configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
Optionally, the execution subject of the method may be a load adjustment device that can be connected to the base station corresponding to each cell to obtain a load amount of each cell. The load amount may be at least one of the number of terminals, a single-user sensing rate, and a resource block utilization rate of each cell.
In this embodiment, the base stations corresponding to the cells are produced by different manufacturers, so that there is a problem that load information interaction cannot be directly performed through an X2 interface.
Optionally, the capacity expansion base station is a base station that adds new hardware to an original base station to increase user carrying capacity, for example, a new Transmission Receiver Unit (TRU) is added.
In this embodiment, the carrier frequency newly added by the capacity expansion base station is not easily interfered with respect to the carrier frequency, and the communication quality can be better ensured.
S202, configuring reselection parameters of the cells according to the priorities of the cells so as to enable the idle terminal to preferentially reside in the cell with the highest priority.
Alternatively, each cell may be set to a plurality of priorities. For example, priority 0 to priority 7, with priority 7 being the highest priority.
Optionally, the reselection parameters may include a cell reselection priority and a cell reselection threshold.
By setting and reducing the cell reselection threshold, the idle terminal on the service state cell can be more easily reselected to a target cell with higher priority.
For example, the priority of the serving cell is 6, and the reselection candidate cells acquired by the idle terminal of the serving cell include a cell with a priority of 7, a cell with a priority of 5, and a cell with a priority of 4. By reducing the reselection threshold of the serving cell relative to the cell with the priority of 7, the idle terminal can be preferentially camped on the cell with the priority of 7.
Optionally, in a specific embodiment, the method may further include: if the load capacity of the idle-state terminal of the highest priority cell exceeds the predetermined number, one implementation manner of controlling the load capacity of the idle-state terminal of the highest priority cell is to increase the reselection threshold of each serving cell relative to the highest priority cell, so that the idle-state terminal of each serving cell resides in the serving cell and is not reselected to the highest priority cell. Another way to implement this may be to cause the idle terminal of each serving cell to reselect to the non-highest priority cell by lowering the recurrence threshold of each serving cell relative to the non-highest priority cell.
And S203, if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the terminal.
Alternatively, the predetermined amount of load may be a range defined by a single threshold, such as less than the single threshold or greater than the single threshold; the predetermined amount of load may also be a range defined by two thresholds, for example, one of the thresholds is a minimum threshold, and the other threshold is a maximum threshold, and the predetermined amount of load is a range defined between the minimum threshold and the maximum threshold.
The current load amount exceeding the predetermined load amount may include: the current load amount is less than the minimum threshold, or the current load amount is greater than the maximum threshold.
In a particular embodiment, the method further comprises: if the current load of the cell to be adjusted is smaller than the minimum threshold, the service-state user preferentially resides in the cell to be adjusted by increasing the switching threshold relative to the target cell.
In the load adjustment method provided in this embodiment, the cell corresponding to the expanded base station is used as the highest priority cell, and the terminal in the idle state is preferentially resided in the highest priority cell by configuring the reselection parameter. And adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the requirement of the preset load capacity according to the current load capacity and the preset load capacity of each cell so as to switch the terminal in the service state from the overloaded high-priority cell to the low-priority cell. The method can enable each cell to meet the requirement of preset load capacity, and further realize load adjustment of cells corresponding to base stations of different manufacturers.
Optionally, the predetermined amount of load includes at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
Fig. 3 is a flowchart illustrating a load adjustment method according to still another embodiment of the present invention. As shown in fig. 3, the method includes:
s301, configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
Step S301 in this embodiment is similar to step S201 in the above embodiment, and is not described here again.
S302, according to the priority of each cell, configuring the cell reselection priority of each cell, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different.
Alternatively, cells of different systems may be assigned different priorities according to the quality of call, for example: the cell of the second Generation mobile phone communication technology (2-Generation wireless telephone technology, 2G) is set to be priority 0 to priority 2, the cell of the third Generation mobile phone communication technology (3-Generation wireless telephone technology, 3G) is set to be priority 3 to priority 4, and the cell of LTE is set to be priority 5 to priority 7. Optionally, based on the above setting, further setting the cell corresponding to the newly expanded base station as the highest priority and the non-expanded base station as the lower priority, according to whether the cell in different systems is the cell corresponding to the newly expanded base station.
S303, configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all current idle-state terminals of each cell relative to the highest-priority cell, so that the idle-state terminals preferentially reside in the highest-priority cell; the pilot frequency point high priority reselection threshold of the highest priority cell is lower than the minimum signal strength of all idle terminals relative to the signal strength of the highest priority cell.
Optionally, the inter-frequency point high priority reselection threshold is an access level threshold used by the UE to reselect a cell at a target frequency point from a serving cell when a cell reselection priority of the target frequency point is higher than a cell reselection priority of the serving cell. After the UE starts cell reselection measurement on the cell at the target frequency point, if the access level of the cell at the target frequency point is always higher than the threshold within the reselection delay time, the UE may reselect to the cell. The pilot Frequency point high priority reselection threshold is suitable for Frequency Division Duplexing (FDD) and Time Division Duplexing (TDD) of LTE.
Optionally, according to an empirical value, the threshold for high priority reselection of the inter-frequency point of the highest priority cell may be set to-116 dBm. When the UE is in the high priority cell, the signal strength is greater than-116 dBm, and it is satisfied for 1 second, the UE will preferentially camp in the high priority cell.
And S304, if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the terminal.
Step S304 in this embodiment is similar to step S203 in the above embodiment, and is not described herein again.
In the load adjustment method provided in this embodiment, the cell corresponding to the capacity expansion base station is used as the highest priority cell, and then the cell reselection priority and the high priority reselection threshold of the pilot frequency point are configured, so that the cell reselection priority is matched with the priority, and the idle terminal preferentially resides in the highest priority cell. And adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the requirement of the preset load capacity according to the current load capacity and the preset load capacity of each cell so as to switch the terminal in the service state from the overloaded high-priority cell to the low-priority cell. The idle terminal of each cell can be preferentially resided on the target cell with the priority higher than that of the service cell according to the priority, so that the idle terminal can preferentially use the resources of the high-priority cell after service connection is carried out, the user experience is ensured, and a foundation is laid for subsequent service state load adjustment.
Fig. 4 is a flowchart illustrating a load adjustment method according to another embodiment of the present invention. As shown in fig. 4, the method includes:
s401, configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
S402, configuring reselection parameters of the cells according to the priorities of the cells so as to enable the idle terminal to preferentially reside in the cell with the highest priority.
Steps S401 and S402 in this embodiment are similar to steps S201 and S202 in the above embodiment, and are not described again here.
S403, if the cell meets at least one of predetermined conditions, determining that the current load amount of the cell exceeds the corresponding predetermined load amount, where the conditions include:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
Optionally, the preset condition may further include: and the call drop rate, the service quality satisfaction rate and the like are used for representing the limitation conditions of the parameters of the load capacity.
S404, if there are cells to be adjusted in each cell, the current load of which exceeds the corresponding preset load, the switching parameters of the cells to be adjusted are adjusted, so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load of each cell after switching does not exceed the preset load of the terminal.
Step S404 in this embodiment is similar to step S203 in the above embodiment, and is not described here again.
In the load adjustment method provided in this embodiment, the cell corresponding to the expanded base station is used as the highest priority cell, and the terminal in the idle state is preferentially resided in the highest priority cell by configuring the reselection parameter. And according to a judgment result obtained after comparing the current load capacity of each cell with a preset condition, adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the preset load capacity requirement so as to switch the terminal in a service state from the overloaded high-priority cell to the low-priority cell. The method can purposefully adjust the switching parameters of the cells needing to be adjusted, and can improve the efficiency of load adjustment.
Fig. 5 is a flowchart illustrating a load adjustment method according to another embodiment of the present invention. As shown in fig. 5, the method includes:
s501, configuring priorities for the cells according to capacity expansion information of the base stations corresponding to the cells; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
S502, according to the priority of each cell, configuring reselection parameters of each cell so as to enable the idle terminal to preferentially reside in the cell with the highest priority.
Steps S501 and S502 in this embodiment are similar to steps S201 and S202 in the above embodiment, and are not described again here.
And S503, if the cells to be adjusted with the current load exceeding the corresponding preset load exist in each cell, reducing the pilot frequency switching threshold of the cells to be adjusted by preset step length.
Alternatively, the predetermined step size may be set according to a proportional relationship between a handover threshold and a load amount obtained from historical data.
And S504, acquiring the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
Optionally, the pilot frequency handover threshold of the cell to be adjusted is reduced by a predetermined step length, and if the current load capacity of the cell to be adjusted still does not meet the predetermined load capacity after the first reduction operation is completed, the second reduction operation is continued until the current load capacity of the cell to be adjusted meets the predetermined load capacity.
Alternatively, each lowering operation may be set to a different value, for example, 2dB for the first time, 1dB for the second time, and 0.5dB for the third time. What kind of value is used in particular may be determined according to a difference between the current load amount and the predetermined load amount. If the difference is large, a step of a high value, for example 2dB, is used, and if the difference is small, a step of a low value, for example 0.5dB, is used.
In the load adjustment method provided by the embodiment of the present invention, the cell corresponding to the capacity expansion base station is used as the highest priority cell, and the reselection parameter is configured, so that the terminal in an idle state preferentially resides in the highest priority cell. And adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the requirement of the preset load capacity by preset step length according to the current load capacity and the preset load capacity of each cell so as to switch the terminal in a service state from the overloaded high-priority cell to the low-priority cell. The method can enable each cell to meet the requirement of preset load capacity, and further realize load adjustment of cells corresponding to base stations of different manufacturers.
Fig. 6 is a flowchart illustrating a load adjustment method according to still another embodiment of the present invention. As shown in fig. 2, the method includes:
s601, configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
S602, according to the priority of each cell, configuring reselection parameters of each cell so as to enable the idle terminal to preferentially reside in the cell with the highest priority.
Steps S601 and S602 in this embodiment are similar to steps S201 and S202 in the above embodiment, and are not described again here.
S603, according to the priority of each cell, setting corresponding preset load capacity for each cell according to a strategy that the higher the priority is, the higher the preset load capacity is.
In this embodiment, the cell with the highest priority corresponds to the carrier frequency newly added by the capacity expansion base station, and compared with the original carrier frequency, the interference is small, and the amount of users that can be carried is large, so the cell with the highest priority sets a high predetermined load amount, which can ensure the call quality and maximally utilize the carrier resource.
And S604, if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the terminal.
Step S604 in this embodiment is similar to step S203 in the above embodiment, and is not described here again.
In the load adjustment method provided in this embodiment, the priority of the cell corresponding to the capacity expansion base station is set as the highest priority, and the highest priority cell is set as the highest predetermined load capacity, so that more users can be accommodated, and the call quality can be ensured while the carrier resources are fully utilized.
Fig. 7 is a schematic structural diagram of a load adjusting apparatus according to another embodiment of the present invention. As shown in fig. 7, the load regulation device 70 includes: a priority configuration module 701, a reselection parameter configuration module 702, and a handover parameter adjustment module.
A priority configuration module 701, configured to configure a priority for each cell according to capacity expansion information of a base station corresponding to each cell; and the cell priority corresponding to the capacity expansion base station is configured as the highest priority.
In this embodiment, the base stations corresponding to the cells are produced by different manufacturers, so that there is a problem that load information interaction cannot be directly performed through an X2 interface.
Optionally, the capacity expansion base station is a base station that adds new hardware to an original base station to increase user carrying capacity, for example, a new Transmission Receiver Unit (TRU) is added.
In this embodiment, the carrier frequency newly added by the capacity expansion base station is not easily interfered with respect to the carrier frequency, and the communication quality can be better ensured.
A reselection parameter configuration module 702, configured to configure reselection parameters of the cells according to the priorities of the cells, so that an idle terminal preferentially resides in the cell with the highest priority.
Alternatively, each cell may be set to a plurality of priorities. For example, priority 0 to priority 7, with priority 7 being the highest priority.
Optionally, the reselection parameters may include a cell reselection priority and a cell reselection threshold.
By setting and reducing the cell reselection threshold, the idle terminal on the service state cell can be more easily reselected to a target cell with higher priority.
For example, the priority of the serving cell is 6, and the reselection candidate cells acquired by the idle terminal of the serving cell include a cell with a priority of 7, a cell with a priority of 5, and a cell with a priority of 4. By reducing the reselection threshold of the serving cell relative to the cell with the priority of 7, the idle terminal can be preferentially camped on the cell with the priority of 7.
Optionally, in a specific embodiment, the method may further include: if the load capacity of the idle-state terminal of the highest priority cell exceeds the predetermined number, one implementation manner of controlling the load capacity of the idle-state terminal of the highest priority cell is to increase the reselection threshold of each serving cell relative to the highest priority cell, so that the idle-state terminal of each serving cell resides in the serving cell and is not reselected to the highest priority cell. Another way to implement this may be to cause the idle terminal of each serving cell to reselect to the non-highest priority cell by lowering the recurrence threshold of each serving cell relative to the non-highest priority cell.
A switching parameter adjusting module 703 is configured to, if there is a to-be-adjusted cell with a current load exceeding a predetermined load corresponding to the to-be-adjusted cell in each cell, adjust a switching parameter of the to-be-adjusted cell, so that a terminal in a high-priority cell is switched to a low-priority cell based on the adjusted switching parameter, and the current load of each cell after switching does not exceed the predetermined load of the terminal.
Alternatively, the predetermined amount of load may be a range defined by a single threshold, such as less than the single threshold or greater than the single threshold; the predetermined amount of load may also be a range defined by two thresholds, for example, one of the thresholds is a minimum threshold, and the other threshold is a maximum threshold, and the predetermined amount of load is a range defined between the minimum threshold and the maximum threshold.
The current load amount exceeding the predetermined load amount may include: the current load amount is less than the minimum threshold, or the current load amount is greater than the maximum threshold.
In a particular embodiment, the method further comprises: if the current load of the cell to be adjusted is smaller than the minimum threshold, the service-state user preferentially resides in the cell to be adjusted by increasing the switching threshold relative to the target cell.
In the load adjustment method provided in this embodiment, the cell corresponding to the expanded base station is used as the highest priority cell, and the terminal in the idle state is preferentially resided in the highest priority cell by configuring the reselection parameter. And adjusting the switching parameters of the overloaded cell of which the current load capacity does not meet the requirement of the preset load capacity according to the current load capacity and the preset load capacity of each cell so as to switch the terminal in the service state from the overloaded high-priority cell to the low-priority cell. The method can enable each cell to meet the requirement of preset load capacity, and further realize load adjustment of cells corresponding to base stations of different manufacturers.
In the load adjustment device provided in the embodiment of the present invention, the priority configuration module 701 uses the cell corresponding to the expanded base station as the highest priority cell, and further configures the reselection parameter through the reselection parameter configuration module 702, so that the idle terminal preferentially resides in the highest priority cell. And the switching parameter adjusting module 703 adjusts the switching parameter of the overloaded cell whose current load does not meet the requirement of the predetermined load according to the current load of each cell and the predetermined load, so that the terminal in the service state is switched from the overloaded high-priority cell to the low-priority cell. The method can enable each cell to meet the requirement of preset load capacity, and further realize load adjustment of cells corresponding to base stations of different manufacturers.
Fig. 8 is a schematic structural diagram of a load adjusting apparatus according to another embodiment of the present invention. As shown in fig. 8, the load regulation device 80 further includes: a decision block 704.
A determining module 704, configured to determine that a current load amount of a cell exceeds a corresponding predetermined load amount if the cell meets at least one of predetermined conditions, where the conditions include:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
Fig. 9 is a schematic structural diagram of a load adjusting apparatus according to still another embodiment of the present invention. As shown in fig. 9, the load regulation device 90 further includes: a predetermined load configuration module 705.
The predetermined load configuration module 705 is configured to set, according to the priority of each cell, a corresponding predetermined load amount for each cell according to a policy that the higher the priority is, the higher the predetermined load amount is.
Optionally, the predetermined amount of load includes at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
Optionally, the reselection parameter configuration module is specifically configured to:
configuring the cell reselection priorities of the cells according to the priorities of the cells, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different;
configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all current idle-state terminals of each cell relative to the highest-priority cell so as to enable the idle-state terminals to preferentially reside in the highest-priority cell; the pilot frequency point high priority reselection threshold of the highest priority cell is lower than the minimum signal strength of all idle terminals relative to the signal strength of the highest priority cell.
Optionally, the handover parameter adjusting module is specifically configured to:
if the cells to be adjusted with the current load exceeding the corresponding preset load exist in each cell, reducing the pilot frequency switching threshold of the cells to be adjusted by preset step length;
and obtaining the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
The load adjusting device provided in the embodiment of the present invention may be used to implement the above method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 10 is a schematic diagram of a hardware structure of a load adjusting apparatus according to another embodiment of the present invention. As shown in fig. 10, the load regulation device 100 according to the present embodiment includes: at least one processor 1001 and memory 1002. The load adjustment device 100 further includes a communication section 1003. The processor 1001, the memory 1002, and the communication unit 1003 are connected by a bus 1004.
In a specific implementation process, the at least one processor 1001 executes the computer-executable instructions stored in the memory 1002, so that the at least one processor 1001 executes the load adjustment method executed by the load adjustment apparatus 100 as described above.
The communication unit 1003 may receive a current load amount of each cell sent by a cell corresponding to each base station, and send a handover parameter generated according to the current load amount to the corresponding cell.
For a specific implementation process of the processor 1001, reference may be made to the above method embodiments, which have similar implementation principles and technical effects, and details of this embodiment are not described herein again.
In the embodiment shown in fig. 10, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the load adjusting method performed by the above load adjusting device is implemented.
The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the load adjusting method performed by the above load adjusting device is implemented.
The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A method of load regulation, comprising:
configuring priorities for each cell according to capacity expansion information of a base station corresponding to each cell; the cell priority corresponding to the capacity expansion base station is configured as the highest priority;
configuring reselection parameters of the cells according to the priorities of the cells so as to enable an idle terminal to preferentially reside in the cell with the highest priority;
if the cells to be adjusted with the current load capacity exceeding the corresponding preset load capacity exist in the cells, adjusting the switching parameters of the cells to be adjusted so that the terminal under the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the cell;
configuring reselection parameters of the cells according to the priorities of the cells comprises the following steps:
configuring the cell reselection priorities of the cells according to the priorities of the cells, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different;
and configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all idle-state terminals of each cell relative to the highest-priority cell, wherein the pilot frequency point high-priority reselection threshold of the highest-priority cell is lower than the minimum signal strength of all idle-state terminals of each cell relative to the signal strength of the highest-priority cell.
2. The method of claim 1, wherein the predetermined amount of loading comprises at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
3. The method of claim 1, further comprising:
if the cell meets at least one of the predetermined conditions, determining that the current load capacity of the cell exceeds the corresponding predetermined load capacity, wherein the conditions comprise:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
4. The method according to claim 1, wherein the adjusting the handover parameters of the cell to be adjusted so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted handover parameters, and the current load capacity of each cell after the switching does not exceed the predetermined load capacity of the cell after the switching comprises:
reducing the pilot frequency switching threshold of the cell to be adjusted by a preset step length;
and obtaining the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
5. The method according to any one of claims 1-4, further comprising:
and setting corresponding preset load capacity for each cell according to the priority of each cell and a strategy that the higher the priority is, the higher the preset load capacity is.
6. A load regulation device, comprising:
the priority configuration module is used for configuring the priority for each cell according to the capacity expansion information of the base station corresponding to each cell; the cell priority corresponding to the capacity expansion base station is configured as the highest priority;
a reselection parameter configuration module, configured to configure reselection parameters of the cells according to the priorities of the cells, so that an idle terminal preferentially resides in a cell with a highest priority;
the switching parameter adjusting module is used for adjusting the switching parameters of the cells to be adjusted if the cells to be adjusted exist in the cells, the current load capacity of which exceeds the corresponding preset load capacity, so that the terminal in the high-priority cell is switched to the low-priority cell based on the adjusted switching parameters, and the current load capacity of each cell after switching does not exceed the preset load capacity of the terminal;
the reselection parameter configuration module is specifically configured to:
configuring the cell reselection priorities of the cells according to the priorities of the cells, wherein the higher the priority is, the higher the cell reselection priority is, and the cell reselection priorities among different systems are different;
configuring a pilot frequency point high-priority reselection threshold of each cell according to the signal strength of all current idle-state terminals of each cell relative to the highest-priority cell so as to enable the idle-state terminals to preferentially reside in the highest-priority cell; the pilot frequency point high priority reselection threshold of the highest priority cell is lower than the minimum signal strength of all idle terminals relative to the signal strength of the highest priority cell.
7. The device of claim 6, wherein the predetermined amount of loading comprises at least one of a number of terminals threshold, a single user perceived rate threshold, and a resource block utilization threshold.
8. The apparatus of claim 6, further comprising:
a determining module, configured to determine that a current load amount of a cell exceeds a corresponding predetermined load amount if the cell meets at least one of predetermined conditions, where the conditions include:
the terminal quantity of the cell is larger than the terminal quantity threshold of the cell;
the single-user perception rate of the cell is smaller than the single-user perception rate threshold value of the cell;
the resource block utilization ratio of the cell is greater than the threshold value of the resource block utilization ratio of the cell.
9. The device of claim 6, wherein the handover parameter adjustment module is specifically configured to:
if the cells to be adjusted with the current load exceeding the corresponding preset load exist in each cell, reducing the pilot frequency switching threshold of the cells to be adjusted by preset step length;
and obtaining the current load capacity of the cell to be adjusted, and if the current load capacity of the cell to be adjusted exceeds the corresponding preset load capacity, returning to the step of reducing the pilot frequency switching threshold of the cell to be adjusted by the preset step length until the current load capacity of the cell to be adjusted does not exceed the preset load capacity of the cell to be adjusted.
10. The apparatus according to any one of claims 6-9, characterized in that the apparatus further comprises:
and the preset load configuration module is used for setting corresponding preset load capacity for each cell according to the priority of each cell and a strategy that the higher the priority is, the higher the preset load capacity is.
11. A load regulation device, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the load regulation method of any of claims 1 to 5.
12. A computer-readable storage medium having computer-executable instructions stored therein, which when executed by a processor, implement the load adjustment method of any one of claims 1 to 5.
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