WO2013091341A1 - 负荷均衡处理方法以及控制装置 - Google Patents
负荷均衡处理方法以及控制装置 Download PDFInfo
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- WO2013091341A1 WO2013091341A1 PCT/CN2012/075604 CN2012075604W WO2013091341A1 WO 2013091341 A1 WO2013091341 A1 WO 2013091341A1 CN 2012075604 W CN2012075604 W CN 2012075604W WO 2013091341 A1 WO2013091341 A1 WO 2013091341A1
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- Prior art keywords
- load balancing
- cell
- base station
- control device
- coefficient
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
Definitions
- the present invention relates to the field of communications, and in particular to a load balancing processing method and a control device.
- LTE Long Term Evolution
- the load balancing solution is implemented by multiple base station calculations, that is, within the current coverage, the base stations report to each other through the X2 port.
- each base station needs to periodically calculate and determine the load balancing coefficient for the surrounding coverage area and all the cells in the base station.
- the load balancing coefficient of a certain cell reaches a certain threshold and belongs to all current calculations.
- the base station to which the cell belongs performs a corresponding load balancing operation.
- Each base station performs load balancing coefficients on the neighboring areas of the coverage and all the cells in the neighboring base station, and only one base station executes after each period ends.
- Load balancing that is, other base stations do not perform load balancing after calculation. This is a potential waste of resources, which greatly increases the overhead of each base station, especially when the number of cells is large, the calculation amount will increase greatly.
- Embodiments of the present invention provide a load balancing processing method and a control apparatus to solve at least a problem of wasted resources in a load balancing processing manner.
- a load balancing processing method including: a control device receives load balancing coefficients of all cells belonging to a plurality of base stations; and the control device sorts all cells according to values of load balancing coefficients, and Determining the cell with the highest load balancing coefficient; the control device transmits the sorting result to the base station corresponding to the cell with the highest load balancing coefficient.
- the control device sends the sorting result to the base station corresponding to the cell with the highest load balancing coefficient, and the control device generates the cell identifier list according to the sorting result of the cell identifier corresponding to each cell; the control device sends the cell identifier list to the load.
- the above control device is provided on the network side or the base station side.
- the network side includes any one of the following: a network element management layer, a core network.
- the control device receives the load balancing coefficient through the internal custom interface.
- the control device when the control device is disposed in the core network, the control device receives the load balancing coefficient through the S1 interface.
- the foregoing base station side includes: any one of a plurality of base stations.
- the control device when the control device is disposed in any one of the plurality of base stations, the control device receives the load balancing coefficient through the X2 interface.
- the method further includes: determining, by the base station corresponding to the cell with the highest load balancing coefficient, the cell with the highest load balancing coefficient according to the load balancing parameter preset by the base station.
- the method further includes: setting a centralized control load balancing switch set in each base station to an enabled state, where the centralized control load balancing switch is used for The base station where the centralized control load balancing switch is controlled transmits the load balancing coefficient of all cells belonging to the base station.
- the method further includes: the control device periodically receives the load balancing coefficients of the current period sent by the multiple base stations, where the load balancing coefficients of the current period are as follows Step acquisition: Each of the plurality of base stations periodically calculates a load balancing coefficient of all cells in the current period of the base station, and sends the load balancing coefficient of the current period to the control device.
- a control apparatus including: a receiving module, configured to receive load balancing coefficients of all cells belonging to a plurality of base stations; and a sorting module configured to receive load balancing coefficients according to the receiving module The value is sorted for all cells, and the cell with the highest load balancing coefficient is determined.
- the sending module is configured to send the sorting result of the sorting module to the base station corresponding to the cell with the highest load balancing coefficient.
- a control device is used to receive load balancing coefficients of all cells in a plurality of base stations, and sort the values according to the values, and send the sorting result to the base station corresponding to the cell with the highest load balancing coefficient, so that no base station is required to recalculate.
- the load balancing factor of the surrounding neighboring area and the operation of sorting these load balancing factors are different from the load balancing processing required for each base station in the related art, the embodiment of the present invention only The load balancing process is implemented by using a control device, thereby reducing the overhead of each base station.
- FIG. 1 is a flowchart of a load balancing processing method according to an embodiment of the present invention
- FIG. 2 is a structural block diagram of a control apparatus according to an embodiment of the present invention
- FIG. 2 is a structural block diagram of a control apparatus according to an embodiment of the present invention
- FIG. 3 is a module based on a module according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of a system for applying a load balancing method to a base station according to a second embodiment of the present invention;
- FIG. 5 is a schematic diagram of a decision module applied to a network element management layer according to Embodiment 3 of the present invention;
- FIG. 6 is a system diagram of a load balancing method applied to a core network according to a fourth embodiment of the present invention;
- FIG. 7 is a schematic diagram of a decision module applied to a network element management layer according to Embodiment 5 of the present invention;
- FIG. 1 is a flowchart of a load balancing processing method according to an embodiment of the present invention. As shown in FIG.
- Step S102 A control device receives load balancing coefficients of all cells in a plurality of base stations.
- Step S104 the control device sorts all the cells according to the value of the load balancing coefficient, and determines the cell with the highest load balancing coefficient.
- step S106 the control device sends the sorting result to the base station corresponding to the cell with the highest load balancing coefficient.
- a control device is used to receive load balancing coefficients of all cells in a plurality of base stations, and sort the values according to the values, and send the sorting result to the base station corresponding to the cell with the highest load balancing coefficient, so that no base station is required to recalculate.
- the load balancing factor of the surrounding neighboring area and the operation of sorting these load balancing factors.
- the embodiment of the present invention uses only one control device to implement load balancing processing, thereby reducing the overhead of each base station, especially when the number of cells is relatively large, the calculation amount is greatly increased.
- the problem is that the load balancing processing method in the related art has a problem of wasting resources and improves resource utilization.
- the base station for example, an evolved base station (abbreviated as eNB) in the LTE system
- eNB evolved base station
- the UE performs the corresponding handover operation, and the specific steps are as follows:
- the base station corresponding to the cell with the highest load balancing coefficient receiving the sort result further determines, according to the load balancing parameter preset by the base station, that the cell with the highest load balancing coefficient needs to perform load balancing,
- the UE in the cell with the highest load balancing coefficient, and the UE sequentially performs the handover attempt in each cell according to the sorting result and the preset rule.
- the preset rule mentioned herein may be a known protocol, or may be a rule preset by the base station according to actual conditions (for example, setting a rule for limiting the number of attempts to switch the UE, or setting an attempted handover of the UE).
- the rule of time, etc.) the UE attempts to switch according to a preset rule.
- the number of attempted handovers is limited to 5.
- the number of attempts to switch is 5, and the UE switches to the cell with the lowest load according to the cell list. If the handover fails, the cell with the lowest load may be selected. Switching, if it fails again, and so on, try up to 5 times previously set, but if the first attempt to switch is successful during the implementation, you can not switch back later.
- the control device may send the cell ID corresponding to the cell with the highest load balancing coefficient to the base station corresponding to the cell with the highest load balancing coefficient, and the control device may generate the cell according to the ranking result.
- the identifier list is sent, and the cell identifier list is sent to the base station corresponding to the cell with the highest load balancing coefficient.
- the base station corresponding to the cell with the highest load balancing coefficient is in progress.
- the UE can be directly instructed to switch according to the specified cell identifier, which is simple and practical.
- the method for transmitting the cell identifier list to the base station corresponding to the cell with the highest load balancing coefficient may be, for example, the foregoing control device may send the cell identifier list to the base station corresponding to the cell with the highest load balancing coefficient by using an internal message or other forms. Of course, if there are other messages that can send the cell identity list, other messages can also be used.
- Each base station in this embodiment can calculate its own load balancing coefficient and report the load balancing coefficient to the control device (the control device can be an independent device or a module implemented by software, for example, a decision module).
- the execution result of the control device determines whether load balancing needs to be performed and how to perform load balancing, and reduces resource waste caused by multiple base stations repeatedly calculating multiple cell load balancing coefficients.
- a switch can be added to control the execution of the load balancing operation. In this example, it is called a centralized control load balancing switch. When the centralized control load balancing switch is turned on, the above load balancing is performed.
- the processing method when the centralized control load balancing switch is turned off, is processed according to the load balancing processing method in the related art. For example, in a coverage area, the centralized control load balancing switch set in each base station is set to an enabled state, wherein the centralized control load balancing switch is used to control the base station where the centralized control load balancing switch is located to send the base station to be owned by the base station.
- the load balancing factor of the cell is a coverage area.
- each base station only needs to calculate the load balancing coefficient of the cell in the base station, and then reports the coefficient to the control device, and the control device performs sorting processing according to the load balancing coefficient of each cell, and selects the cell with the highest load balancing coefficient. And sending the sorting result to the base station to which the cell belongs, and the base station determines and performs load balancing according to the load balancing related parameter.
- the control device may periodically receive the load balancing coefficients of the current period sent by the multiple base stations, where the current period load balancing coefficients may be obtained as follows: Each of the base stations periodically calculates a load balancing coefficient of all cells in the current period of the base station, and sends the acquired load balancing factor of the current period to the control device. This method of periodically acquiring the load balancing factor of the current period is convenient and convenient. Of course, the load balancing coefficient of the current period can also be obtained by setting a timer.
- the data is periodically updated, and the subsequent UE handover can switch to a cell with better network conditions, thereby improving the network quality used by the UE.
- the foregoing control device may be disposed on the network side or the base station side, and may be an independent hardware device or a software module running in the network element.
- the network side may include any one of the following: a network element management layer, a core network.
- the control device When the control device is set at the network element management layer, the control device can receive a load balancing coefficient, for example, a network interface, through an internal custom interface.
- the control device is disposed in the core network, the control device can receive the load balancing factor through the S1 interface.
- the foregoing base station side may include: any one of a plurality of base stations.
- the control device When the control device is disposed in any one of the plurality of base stations, the control device may receive the load balancing coefficient through the X2 interface.
- an embodiment of the present invention further provides a control device.
- 2 is a structural block diagram of a control device according to an embodiment of the present invention. As shown in FIG. 2, the device includes: a receiving module 22, a sorting module 24, and a transmitting module 26.
- the receiving module 22 is configured to receive load balancing coefficients of all cells belonging to multiple base stations; the ordering module 24 is connected to the receiving module 22, and is configured to sort all cells according to the value of the load balancing coefficient received by the receiving module 22.
- the sending module 26 is connected to the sorting module 24, and is configured to send the sorting result of the sorting module 24 to the base station corresponding to the cell with the highest load balancing coefficient.
- the receiving device 22 receives the load balancing coefficients of all the cells of the plurality of base stations, and sorts the values according to the value by the sorting module 24, and sends the sorting result to the highest load balancing coefficient by the sending module 26.
- the base station corresponding to the cell so that each base station is not required to recalculate the load balancing coefficients of the neighboring coverage neighboring areas and the operations of sorting the load balancing coefficients.
- the embodiment of the present invention uses only one control device to implement load balancing processing, thereby reducing the overhead of each base station, especially when the number of cells is relatively large, the calculation amount is greatly increased.
- the problem is that the load balancing processing method in the related art has a problem of wasting resources and improves resource utilization.
- the preferred embodiment of the present invention is described by taking the execution of the above-mentioned load balancing processing method by using a centralized control load balancing switch as an example, and proposes a method based on centralized control of modules for LTE load balancing.
- the system includes a decision module (ie, the above control device), and the decision module controls the load.
- the load balancing method based on the centralized control of the module includes the following steps: Step 1: Configure the load management switch to enable the centralized control load management function. Step 2: The base station periodically calculates the load balancing coefficient of all cells in the base station according to relevant parameters of the load management configuration. Step 3: After the base station calculates the load balancing coefficient, the base station transmits the load balancing coefficient to the decision module.
- Step 4 After the decision module collects the information reported by the base station, it queues the load balancing coefficients of all the cells, and queues in order from high to low, and outputs a list of cell identifiers (having unique cell identifiers for one cell).
- Step 5 The decision module sends the list generated in step 4 to the base station to which the cell with the highest load balancing coefficient belongs.
- Step 6 After receiving the list generated by the decision module, the base station determines whether load balancing needs to be performed according to the load balancing related parameter, and if necessary, selects the UE to try to switch according to the cell list.
- Step 7 Configure the load management switch to disable the centralized control load management function.
- FIG. 4 is a schematic diagram of a system for applying a load balancing method of a decision module to a base station according to Embodiment 2 of the present invention, as shown in FIG.
- the system includes a decision module (ie, the control device described above), and the decision module controls a plurality of base stations (including the base station eNB1 where the decision module is located) for load balancing.
- the load balancing method applied by the decision module to the base station includes the following steps: Step 1: e Bl, e B2 to eNBn are in the same coverage area, and the decision module is applied to the system of the eNB1.
- Step 2 Set the "Centralized Control Load Balancing" switch of all base stations to be enabled, and set the load balancing resource reporting period to 5000ms.
- Step 3 The eNB1 with the decision module sends a RESOURCE STATUS REQUEST message to the other base stations, and the message Type cell carried in the message is 254 (can be customized according to the protocol).
- the other base station replies with a RESOURCE STATUS RESPONSE message, informing the eNB1 that the load information can be normally sent.
- the eNB1 sums up the number of cells in the RESOURCE STATUS RESPONSE message correctly and the number of cells in the eNB1, calculates n, and informs the decision module of n.
- Step 4 The eNB1 calculates its own load balancing coefficient every 5000 ms and informs the decision module.
- the carried cell is the load balancing coefficient of each cell in the base station, and the load balancing coefficient and the cell identifier (ID) of each cell in the base station are notified to the decision module on e Bl.
- Step 5 After the decision module collects the load balancing coefficients of the n cells, the load balancing coefficients are sorted from high to low, and the cell ID list is output.
- the decision module sends an internal message to e B3, where the message type is 252 (252 can be customized according to the protocol), and the carried cell is a list of output cell IDs.
- Step 6 After receiving the internal message whose message type is 252, e B3 determines whether load balancing needs to be performed according to the internally configured load balancing related parameters. If necessary, the UE selects the cell to try to switch according to the cell list in the internal message, and performs the load. balanced.
- Step 7 Repeat steps 4 through 6 for the next 5000ms period.
- FIG. 5 is a schematic diagram of a system for applying a decision module to a network element management layer load balancing method according to Embodiment 3 of the present invention. As shown in FIG.
- the system includes a plurality of decision modules (ie, the above-mentioned control devices), a plurality of network element management layers in which the plurality of decision modules are located, and the plurality of decision modules control a plurality of base stations for load balancing.
- the load balancing method applied by the decision module to the network element management layer includes the following steps: Step 1: The network element base station managed by each network element management layer is basically in a coverage area, and the decision module is applied to the network. Yuan management. Step 2: Set the "Centralized Control Load Balancing" switch of all base stations to be enabled, and set the load balancing resource reporting period to 5000ms.
- Step 3 After the network element management layer finds that the "centralized control load balancing" switch of the network element under its jurisdiction is enabled, the decision module 1 is notified, and the decision module sends an internal message to the e Bll, e B12 to e Bln through the network port, requesting Report the load balancing factor.
- Step 4 After receiving the message sent by the decision module, e Bll, e B12 to eNBln send a feedback message to the decision module, indicating that the load balancing coefficient can be sent, and the number of feedback messages successfully received by the decision module is n.
- Step 5 e Bll, e B12 to e Bln calculate the load balancing coefficient of each cell in a cycle of 5000 ms, and send an internal message through the network port to inform the decision module 1 of the cell ID and the load balancing coefficient.
- Step 6 After receiving the message of n network elements, the judgment module sorts according to the load balancing coefficient from high to low, and outputs a cell ID list. Assuming that the cell 1 load balancing coefficient of e B12 is the highest, the decision module sends the output cell ID list to the eNB 12 through an internal message.
- Step 7 After receiving the cell ID list of the decision module, e B12 determines whether load balancing needs to be performed according to the internally configured load balancing related parameters.
- Step 8 Repeat steps 5 through 7 for the next 5000ms period.
- Step 9 The NE management layer 2 and the network element management layer 3 perform the same operation if they find that the "centralized control load balancing" switch of all network elements is enabled.
- the above method not only avoids the base station calculating the load balancing coefficient of all neighboring cells, but also avoids each base station to decide whether it is necessary to perform load balancing and how to perform load balancing operations. In addition, when there is a problem in the X2 port between the base stations, the resource usage cannot be reported between the base stations, and the determination of the load balancing coefficient cannot be performed.
- FIG. 6 is a schematic diagram of a system for applying a decision module to a core network load balancing method according to Embodiment 4 of the present invention.
- the system includes a decision module (i.e., the control device described above), a core network in which the decision module is located, and the decision module controls a plurality of base stations for load balancing. Based on the system of FIG.
- the load balancing method applied by the decision module to the core network includes the following steps: Step 1: e Bl, e B2 to e Bn are in the same coverage area, and the decision module is applied to the core network, and the core network and The number of S1 interfaces coupled to the base station is n, where n is the maximum number of base stations that the decision module can receive information. If the number of base stations receiving the information exceeds n, the received load is considered to be the received load. The equalization coefficient is invalid.
- Step 2 Set the "Centralized Control Load Balancing" switch of all base stations to be enabled, and set the load balancing resource reporting period to 5000ms.
- Step 3 e Bl, e B2 to e Bn calculate the load balancing coefficient of all cells in the base station in a cycle of 5000 ms, and send the load balancing coefficient and the cell ID list to the decision module of the core network through the internal message through the S1 interface.
- Step 4 After the decision module collects the messages sent by the n base stations, all the load balancing coefficients collected are sorted from high to low, and the cell ID list is output according to the sorting result. Assuming that the cell 1 load balancing coefficient of eNB2 is the highest, the decision module sends the output cell ID list to e B2 through an internal message.
- Step 5 After receiving the cell ID list of the decision module, the e B2 determines whether the load balancing needs to be performed according to the internally configured load balancing related parameters. If necessary, the UE selects the cell to try to switch according to the cell list in the internal message, and performs load balancing. .
- the above method not only avoids the base station calculating the load balancing coefficient of all neighboring cells, but also avoids each base station to decide whether it is necessary to perform load balancing and how to perform load balancing operations. In addition, when there is a problem in the X2 port between the base stations, the resource usage cannot be reported between the base stations, and the determination of the load balancing coefficient cannot be performed.
- the decision module in the preferred embodiment is set in the core network through the internally set interface. (For example, the S1 interface) Communicates with the base station it controls, which solves the problem that the load balancing cannot be performed when the X2 port is abnormal.
- Embodiment 5 This preferred embodiment is described by using the above-mentioned decision module in the network element management layer and being compatible with the current load balancing processing method.
- FIG. 7 is a diagram of a decision module according to Embodiment 5 of the present invention applied to a network element management layer and A system diagram of a load balancing method compatible with the current load balancing processing method. As shown in FIG.
- the system includes a decision module (ie, the above-mentioned control device), and the network element management layer where the decision module is located is controlled by the decision module.
- the load balancing method applied to the network element management layer and compatible with the current load balancing processing method includes the following steps: Step 1: The network element base station managed by each network element management layer is basically in a coverage area.
- the decision module is applied to the network element management layer.
- Step 2 Set the NE management layer to enable the centralized control load balancing switch of all base stations, and set the load balancing resource reporting period to 5000ms.
- the "Centralized Control Load Balancing" switch of all base stations under the network management layer is not enabled, but the load balancing function is enabled.
- Step 3 After the network element management layer finds that the "centralized control load balancing" switch of the network element under its jurisdiction is enabled, the decision module 1 is notified, and the decision module sends an internal message to the e Bll, e B12 to e Bln through the network port, requesting Report the load balancing factor.
- Step 4 After receiving the message sent by the decision module, e Bll, e B12 to eNBln feed back the information to the decision module, and notify that the load balancing coefficient can be sent, and the number of feedback messages successfully received by the decision module is n.
- Step 5 e Bll, e B12 to eNBln calculate the load balancing coefficient of each cell in a cycle of 5000 ms, and send an internal message through the network port to notify the decision module 1 of the cell ID and the load balancing coefficient.
- Step 6 After receiving the message of n network elements, the judgment module sorts according to the load balancing coefficient from high to low, and outputs a cell ID list.
- Step 7 After receiving the cell ID list of the decision module, e B12 determines whether load balancing needs to be performed according to the internally configured load balancing related parameters. If necessary, the UE selects the cell to try to switch according to the cell list in the internal message, and performs load balancing. .
- Step 8 After sending a RESOURCE STATUS REQUEST message to each other through the X2 interface, e B21, e B22 to e B2n, and replying to the RESOURCE STATUS RESPONSE message.
- Step 9 e B21, eNB22 to e B2n, send an internal message with a time T carried in the RESOURCE STATUS REQUEST message.
- Step 10 e B21, eNB22 to e B2n, after receiving the LOAD INFORMATION, each eNB calculates the load balancing coefficient of the other base station cell according to the cell carried in the message, and then determines whether the load balancing coefficient of the base station cell has reached the load.
- the equalization threshold is the cell with the highest load balancing coefficient. If yes, the UE is selected to perform the handover operation to achieve the purpose of load balancing. If not, it waits until the next T to determine whether load balancing needs to be performed.
- Step 11 If the decision module under the jurisdiction of the network element management is abnormal, the "Centralized Control Load Balancing" switch may not be enabled.
- e Bll, e B12 to eNBln continue to perform load balancing according to the manner in which the base station managed by the network element management layer performs load balancing.
- the above method not only avoids the base station calculating the load balancing coefficient of all neighboring cells, but also avoids each base station to decide whether it is necessary to perform load balancing and how to perform load balancing operations.
- the resource usage cannot be reported between the base stations, and the determination of the load balancing coefficient cannot be performed.
- the decision module in the preferred embodiment is set in the management layer through the internally set interface. (for example, network interface) Communicating with the base station it controls solves the problem that load balancing cannot be performed when the X2 port is abnormal, and is compatible with the existing solution.
- the embodiment of the present invention uses a control device to receive load balancing coefficients of all cells in a plurality of base stations, and sorts the values according to the values, and sends the sorting result to the base station corresponding to the cell with the highest load balancing coefficient. In this way, it is not necessary for each base station to recalculate the load balancing coefficients of the neighboring coverage areas and the operations of sorting the load balancing coefficients.
- the embodiment of the present invention uses only one control device to implement load balancing processing, thereby reducing the overhead of each base station, especially when the number of cells is relatively large, the calculation amount is greatly increased.
- the problem is that the load balancing processing method in the related art has a problem of wasting resources and improves resource utilization.
- the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
- the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
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Abstract
本发明公开了一种负荷均衡处理方法以及控制装置。其中,该方法包括:控制装置接收多个基站属辖所有小区的负荷均衡系数;上述控制装置按照负荷均衡系数的数值对所有小区进行排序,并确定负荷均衡系数最高的小区;上述控制装置将排序结果发送至负荷均衡系数最高的小区对应的基站。本发明解决了相关技术中的负荷均衡处理方式存在浪费资源的问题,提高了资源利用率。
Description
负荷均衡处理方法以及控制装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种负荷均衡处理方法以及控制装置。 背景技术 在当前的长期演进 (Long Time Evolution, 简称为 LTE) 通信系统中, 负荷均衡 方案是通过多个基站计算来实现的, 即在当前覆盖范围内, 基站两两之间通过 X2 口 互相上报资源使用情况, 每个基站都需要周期的对周边同覆盖邻区和本基站内的所有 小区进行负荷均衡系数的计算和判决, 当某个小区的负荷均衡系数达到一定门限且属 于当前所有计算的小区中负荷均衡最高的小区时, 该小区所属的基站会执行相应的负 荷均衡操作。 但是按照上述方式执行负载均衡策略, 会出现如下问题: 每个基站都在周期的计 算周边同覆盖邻区和本基站内的所有小区进行负荷均衡系数, 而每个周期结束后只有 一个基站才执行负荷均衡, 即其他的基站计算后并不执行负荷均衡, 这是一种潜在的 资源浪费, 大大增加了每个基站的开销, 尤其是在小区数量比较多时, 计算量会大幅 增加。 针对相关技术中的负荷均衡处理方式存在浪费资源的问题, 目前尚未提出有效的 解决方案。 发明内容 本发明实施例提供了一种负荷均衡处理方法以及控制装置, 以至少解决负荷均衡 处理方式存在浪费资源的问题。 根据本发明的一个实施例, 提供了一种负荷均衡处理方法, 包括: 控制装置接收 多个基站属辖所有小区的负荷均衡系数; 上述控制装置按照负荷均衡系数的数值对所 有小区进行排序, 并确定负荷均衡系数最高的小区; 上述控制装置将排序结果发送至 负荷均衡系数最高的小区对应的基站。 优选地, 上述控制装置将排序结果发送至负荷均衡系数最高的小区对应的基站, 包括: 控制装置将各小区对应的小区标识按照排序结果生成小区标识列表; 上述控制 装置将小区标识列表发送至负荷均衡系数最高的小区对应的基站。
优选地, 上述控制装置设置于网络侧或者基站侧。 优选地, 上述网络侧包括下列任意之一: 网元管理层, 核心网。 优选地, 上述控制装置设置于网元管理层时, 控制装置通过内部自定义接口接收 负荷均衡系数。 优选地,上述控制装置设置于核心网时,控制装置通过 S1接口接收负荷均衡系数。 优选地, 上述基站侧包括: 多个基站中的任意一个基站。 优选地, 上述控制装置设置于多个基站中的任意一个基站时, 控制装置通过 X2 接口接收负荷均衡系数。 优选地, 上述控制装置将排序结果发送至负荷均衡系数最高的小区对应的基站之 后, 还包括: 负荷均衡系数最高的小区对应的基站根据该基站预先配置的负荷均衡参 数确定负荷均衡系数最高的小区需要执行负荷均衡时, 选择负荷均衡系数最高的小区 中的 UE, 并令该 UE按照排序结果以及预设规则在各小区中依次进行切换尝试。 优选地, 上述控制装置接收多个基站属辖所有小区的负荷均衡系数之前,还包括: 将每个基站中设置的集中控制负荷均衡开关设置为使能状态, 其中, 集中控制负荷均 衡开关用于控制集中控制负荷均衡开关所在的基站发送该基站属辖所有小区的负荷均 衡系数。 优选地, 上述控制装置接收多个基站属辖所有小区的负荷均衡系数之前,还包括: 控制装置周期性接收多个基站发送的当前周期的负荷均衡系数, 其中, 当前周期的负 荷均衡系数按如下步骤获取: 多个基站中的每个基站周期性计算该基站属辖所有小区 在当前周期的负荷均衡系数, 并将当前周期的负荷均衡系数发送至控制装置。 根据本发明的另一实施例, 提供了一种控制装置, 包括: 接收模块, 设置为接收 多个基站属辖所有小区的负荷均衡系数; 排序模块, 设置为按照接收模块接收到的负 荷均衡系数的数值对所有小区进行排序, 并确定负荷均衡系数最高的小区; 发送模块, 设置为将排序模块的排序结果发送至负荷均衡系数最高的小区对应的基站。 本发明实施例采用一个控制装置接收多个基站属辖的所有小区的负荷均衡系数并 按照数值进行排序, 将排序结果发给负荷均衡系数最高的小区对应的基站的方式, 从 而无需各个基站再计算周边同覆盖邻区的负荷均衡系数以及对这些负荷均衡系数进行 排序的操作。 与相关技术中每个基站均需要进行负荷均衡处理不同, 本发明实施例仅
使用一个控制装置实现负荷均衡处理, 从而减少了每个基站的开销, 尤其是在小区数 量比较多时, 计算量会大大减少, 进而解决了相关技术中的负荷均衡处理方式存在浪 费资源的问题, 提高了资源利用率。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据本发明实施例的负荷均衡处理方法的流程图; 图 2是根据本发明实施例的控制装置的结构框图; 图 3是根据本发明实施例一的基于模块集中控制的负荷均衡方法的系统示意图; 图 4 是根据本发明实施例二的判决模块应用于基站的负荷均衡方法的系统示意 图; 图 5是根据本发明实施例三的判决模块应用于网元管理层的负荷均衡方法的系统 示意图; 图 6是根据本发明实施例四的判决模块应用于核心网的负荷均衡方法的系统示意 图; 图 7是根据本发明实施例五的判决模块应用于网元管理层且与当前负荷均衡处理 方法兼容的负荷均衡方法的系统示意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 本实施例可以用于无线通信系统中, 以在 LTE移动通信系统中的负荷均衡处理方 法为例进行说明。 为了解决相关技术中的负荷均衡处理方式存在浪费资源的问题, 本 实施例提供了一种负荷均衡处理方法以及控制装置。 图 1是根据本发明实施例的负荷 均衡处理方法的流程图, 如图 1所示, 该方法包括如下步骤: 步骤 S102, 控制装置接收多个基站属辖所有小区的负荷均衡系数;
步骤 S104, 上述控制装置按照负荷均衡系数的数值对所有小区进行排序, 并确定 负荷均衡系数最高的小区; 步骤 S106, 上述控制装置将排序结果发送至负荷均衡系数最高的小区对应的基 站。 本发明实施例采用一个控制装置接收多个基站属辖的所有小区的负荷均衡系数并 按照数值进行排序, 将排序结果发给负荷均衡系数最高的小区对应的基站的方式, 从 而无需各个基站再计算周边同覆盖邻区的负荷均衡系数以及对这些负荷均衡系数进行 排序的操作。 与相关技术中每个基站均需要进行负荷均衡处理不同, 本发明实施例仅 使用一个控制装置实现负荷均衡处理, 从而减少了每个基站的开销, 尤其是在小区数 量比较多时, 计算量会大大减少, 进而解决了相关技术中的负荷均衡处理方式存在浪 费资源的问题, 提高了资源利用率。 上述控制装置在将排序结果发送至负荷均衡系数最高的小区对应的基站之后, 该 基站(例如, 在 LTE系统中可以是演进的基站(简称为 eNB))可以对用户设备(User Equipment, 简称为 UE) 执行相应的切换操作, 具体步骤如下: 接收到排序结果的负荷均衡系数最高的小区对应的基站进而根据该基站预先配置 的负荷均衡参数确定负荷均衡系数最高的小区需要执行负荷均衡时, 选择负荷均衡系 数最高的小区中的 UE,并令 UE按照排序结果以及预设规则在各小区中依次进行切换 尝试。 其中, 此处提及的预设规则可以是已知的协议, 也可以是基站根据实际情况预先 设置的规则(例如, 设置一个限定 UE的尝试切换次数的规则, 或者设置一个限定 UE 的尝试切换时间的规则等等), UE按照预设的规则尝试进行切换。 现以限定 UE的尝 试切换次数的规则为例, 本例中, 设置尝试切换次数为 5, UE根据小区列表先往负荷 最低的小区中切换, 如果切换失败, 则可以选择负荷次低的小区尝试切换, 如果再次 失败, 以此类推, 最多尝试先前设置的 5次, 但是在实施过程中如果第一次尝试切换 就成功, 就可以不进行后面的尝试切换了, 同理, 如果第二次至第四次任意一次尝试 切换成功也不需要再进行后面的尝试切换。 需要说明的是, 上述的切换次数、 切换顺 序以及其他相应参数皆根据实际情况而定, 并不限于所举数值。 为了方便负荷均衡系数最高的小区对应的基站进行负荷均衡操作, 控制装置在将 排序结果发送至负荷均衡系数最高的小区对应的基站时, 控制装置可以将各小区对应 的小区标识按照排序结果生成小区标识列表, 并将小区标识列表发送至负荷均衡系数 最高的小区对应的基站。 通过这种方式, 负荷均衡系数最高的小区对应的基站在进行
负荷均衡操作时, 可以直接指示 UE按照指定的小区标识进行切换, 简单实用。 其中, 将小区标识列表发送至负荷均衡系数最高的小区对应的基站的方式有很多种, 例如, 上述控制装置可以将小区标识列表通过内部消息或者其他形式发送至负荷均衡系数最 高的小区对应的基站, 当然, 若存在其他消息能够发送小区标识列表的情况下, 也可 以采用其他消息。 本实施例中的每个基站可以计算自己的负荷均衡系数, 把负荷均衡系数上报给控 制装置 (该控制装置可以是一个独立的设备, 也可以是一个通过软件实现的模块, 例 如,判决模块),通过控制装置的执行结果来判断是否需要执行负荷均衡和如何执行负 荷均衡, 减少多个基站互相重复计算多个小区负荷均衡系数导致的资源浪费。 为了保证和现有方案的兼容性,还可以增加一个开关来控制负荷均衡操作的执行, 本例中, 将其称为集中控制负荷均衡开关, 当集中控制负荷均衡开关开启时, 执行上 述负荷均衡处理方法, 当集中控制负荷均衡开关关闭时, 按照相关技术中的负荷均衡 处理方式进行处理。 例如, 在一个覆盖范围内, 将每个基站中设置的集中控制负荷均 衡开关设置为使能状态, 其中, 集中控制负荷均衡开关用于控制集中控制负荷均衡开 关所在的基站发送该基站属辖所有小区的负荷均衡系数。 当上述开关生效时, 各个基 站只需计算本基站内小区的负荷均衡系数, 然后将系数上报给控制装置, 该控制装置 根据各个小区的负荷均衡系数进行排序处理, 选择出负荷均衡系数最高的小区, 将排 序结果发送给该小区所属的基站,该基站根据负荷均衡相关参数判断并执行负荷均衡。 控制装置接收多个基站属辖所有小区的负荷均衡系数之前, 控制装置还可以周期 性接收多个基站发送的当前周期的负荷均衡系数, 其中, 当前周期的负荷均衡系数可 以按如下步骤获取: 多个基站中的每个基站周期性计算该基站属辖所有小区在当前周 期的负荷均衡系数, 并将获取到的当前周期的负荷均衡系数发送至上述控制装置。 这 种周期性的获取当前周期的负荷均衡系数的方式方便易行, 当然也可以以设置定时器 的方式获取当前周期的负荷均衡系数。 对于基站而言, 数据周期性更新, 后续 UE切 换时能够切换至网络条件更优的小区, 提高 UE使用的网络质量。 需要说明的是, 上述控制装置可以设置于网络侧或者基站侧, 可以为一独立的硬 件设备, 也可以是在网元中运行的一软件模块。 其中, 上述网络侧可以包括下列任意之一: 网元管理层, 核心网。 当控制装置设 置于网元管理层时, 该控制装置可以通过内部自定义接口接收负荷均衡系数, 例如, 网络接口。当控制装置设置于核心网时,控制装置可以通过 S1接口接收负荷均衡系数。
此外, 上述基站侧可以包括: 多个基站中的任意一个基站。 当控制装置设置于多 个基站中的任意一个基站时, 控制装置可以通过 X2接口接收负荷均衡系数。 对应于上述方法, 本发明实施例还提供了一种控制装置。 图 2是根据本发明实施 例的控制装置的结构框图, 如图 2所示, 该装置包括: 接收模块 22、 排序模块 24以 及发送模块 26。其中, 接收模块 22, 设置为接收多个基站属辖所有小区的负荷均衡系 数; 排序模块 24, 与接收模块 22相连, 设置为按照接收模块 22接收到的负荷均衡系 数的数值对所有小区进行排序, 并确定负荷均衡系数最高的小区; 发送模块 26, 与排 序模块 24相连, 设置为将排序模块 24的排序结果发送至负荷均衡系数最高的小区对 应的基站。 本实施例采用上述控制装置,通过接收模块 22接收多个基站属辖的所有小区的负 荷均衡系数并通过排序模块 24按照数值进行排序, 并通过发送模块 26将排序结果发 给负荷均衡系数最高的小区对应的基站, 从而无需各个基站再计算周边同覆盖邻区的 负荷均衡系数以及对这些负荷均衡系数进行排序的操作。 与相关技术中每个基站均需 要进行负荷均衡处理不同, 本发明实施例仅使用一个控制装置实现负荷均衡处理, 从 而减少了每个基站的开销, 尤其是在小区数量比较多时, 计算量会大大减少, 进而解 决了相关技术中的负荷均衡处理方式存在浪费资源的问题, 提高了资源利用率。 下面结合优选实施例对进行说明, 该优选实施例结合了上述实施例及优选实施方 式。 实施例一 本优选实施例以采用集中控制负荷均衡开关控制上述负荷均衡处理方法的执行为 例进行说明, 为 LTE负荷均衡提出一中基于模块集中控制的方法。 图 3是根据本发明 实施例一的基于模块集中控制的负荷均衡方法的系统示意图, 如图 3所示, 该系统中 包括一个判决模块(即上述的控制装置), 以及该判决模块控制进行负荷均衡的多个基 站。 基于图 3的系统, 基于模块集中控制的负荷均衡方法包括如下步骤: 步骤一: 配置负荷管理的开关, 使集中控制负荷管理功能使能。 步骤二: 基站根据负荷管理配置的相关参数, 周期性的计算本基站内所有小区的 负荷均衡系数。 步骤三: 基站计算出负荷均衡系数后, 将负荷均衡系数传送给判决模块。
步骤四: 判决模块收齐基站上报的信息后,对所有小区的负荷均衡系数进行排队, 按照由高到低的顺序排队, 输出小区标识(对于一个小区具有唯一的小区标识)列表。 步骤五: 判决模块将步骤四生成的列表发送给负荷均衡系数最高的小区所属的基 站。 步骤六: 基站收到判决模块生成的列表后, 根据负荷均衡相关参数判断是否需要 执行负荷均衡, 如果需要, 则选择 UE按照小区列表逐个尝试切换。 步骤七: 配置负荷管理的开关, 使集中控制负荷管理功能不使能, 各个基站之间 可以通过 X2接口进行资源上报分别独立判断和执行负荷均衡。 上述方法不仅避免了基站计算所有邻区的负荷均衡系数, 还可以避免每个基站都 去判决是否需要执行负荷均衡和如何执行负荷均衡操作。 实施例二 本优选实施例以上述判决模块应用于某个基站上为例进行说明, 图 4是根据本发 明实施例二的判决模块应用于基站的负荷均衡方法的系统示意图, 如图 4所示, 该系 统中包括一个判决模块(即上述的控制装置), 以及该判决模块控制进行负荷均衡的多 个基站 (包括判决模块所在的基站 eNBl )。 基于图 4的系统, 判决模块应用于基站的负荷均衡方法包括如下步骤: 步骤一: e Bl、 e B2到 eNBn在同一个覆盖区域内, 将判决模块应用于 eNBl 的系统中。 步骤二: 设置所有基站的"集中控制负荷均衡"开关使能, 设置负荷均衡资源上报 周期为 5000ms。 步骤三: 配有判决模块的 eNBl给其他基站发送 RESOURCE STATUS REQUEST 消息, 消息中携带的 message Type信元为 254 (根据协议可以自定义)。 其他基站收到 RESOURCE STATUS REQUEST消息后,回复 RESOURCE STATUS RESPONSE消息, 通知 eNBl可以正常发送负荷信息。 eNBl将正确收到 RESOURCE STATUS RESPONSE 消息中的小区数和 eNBl内部的小区数汇总求和, 计算得出 n, 将 n告知判决模块。 步骤四: eNBl每 5000ms计算一次自己的负荷均衡系数,告知判决模块。其他 eNB 每 5000ms通过 X2口发送内部消息, 其中 message Type为 253 (253根据协议可自定
义,此处表示携带的信元为基站内各小区的负荷均衡系数),将本基站内各个小区的负 荷均衡系数和小区标识 (ID) 告知 e Bl上的判决模块。 步骤五: 判决模块收齐 n个小区的负荷均衡系数后, 对这些负荷均衡系数由高到 低进行排序, 输出小区 ID列表。 假设 eNB3的小区 2负荷均衡系数最高, 判决模块给 e B3发送内部消息, 其中 message Type为 252 (252根据协议可自定义), 携带的信 元为输出的小区 ID列表。 步骤六: e B3收到 message Type为 252的内部消息后, 根据内部配置的负荷均 衡相关参数判断是否需要执行负荷均衡, 如果需要, 则选择 UE按照内部消息中的小 区列表逐个尝试切换, 执行负荷均衡。 步骤七: 下一个 5000ms周期到时, 重复步骤四至步骤六。 上述方法不仅避免了基站计算所有邻区的负荷均衡系数, 还可以避免每个基站都 去判决是否需要执行负荷均衡和如何执行负荷均衡操作。 实施例三 本优选实施例以上述判决模块应用于网元管理层上为例进行说明, 图 5是根据本 发明实施例三的判决模块应用于网元管理层的负荷均衡方法的系统示意图, 如图 5所 示, 该系统中包括多个判决模块(即上述的控制装置), 上述多个判决模块所在的多个 网元管理层, 以及上述多个判决模块控制进行负荷均衡的多个基站。 基于图 5的系统, 判决模块应用于网元管理层的负荷均衡方法包括如下步骤: 步骤一: 每个网元管理层管理的网元基站基本都在一个覆盖区域内, 将判决模块 应用于网元管理层上。 步骤二: 设置所有基站的 "集中控制负荷均衡 "开关使能, 设置负荷均衡资源上报 周期为 5000ms。 步骤三: 网元管理层一发现其管辖的网元"集中控制负荷均衡"开关使能后, 告知 判决模块一, 判决模块一通过网口向 e Bll、 e B12至 e Bln发送内部消息, 要求上 报负荷均衡系数。 步骤四: e Bll、 e B12至 eNBln收到判决模块一发送的消息后, 给判决模块一 反馈信息, 告知可以发送负荷均衡系数, 判决模块统计成功收到的反馈消息个数为 n。
步骤五: e Bll、 e B12至 e Bln以 5000ms为周期, 计算其各个小区的负荷均 衡系数, 并通过网口发送内部消息将小区 ID和负荷均衡系数告知判决模块一。 步骤六: 判决模块收一收齐 n个网元的消息后, 根据负荷均衡系数由高到低进行 排序, 输出小区 ID列表。 假设 e B12的小区 1负荷均衡系数最高, 判决模块将输出 的小区 ID列表通过内部消息发送给 eNB12。 步骤七: e B12收到判决模块的小区 ID列表后, 根据内部配置的负荷均衡相关 参数判断是否需要执行负荷均衡, 如果需要, 则选择 UE按照内部消息中的小区列表 逐个尝试切换, 执行负荷均衡。 步骤八: 下一个 5000ms周期到时, 重复步骤五到步骤七。 步骤九: 网元管理层二和网元管理层三如果发现所有网元的 "集中控制负荷均衡" 开关使能, 执行同样的操作。 上述方法不仅避免了基站计算所有邻区的负荷均衡系数, 还可以避免每个基站都 去判决是否需要执行负荷均衡和如何执行负荷均衡操作。 此外, 当基站之间的 X2 口 出现问题时, 基站之间无法上报资源使用情况, 无法执行负荷均衡系数的判决, 而本 优选实施例中的判决模块设置在管理层中, 通过内部设置的接口 (例如, 网络接口) 与其所控制的基站进行通信, 解决了当 X2口异常不能执行负荷均衡的问题。 实施例四 本优选实施例以上述判决模块应用于核心网为例进行说明, 图 6是根据本发明实 施例四的判决模块应用于核心网的负荷均衡方法的系统示意图, 如图 6所示, 该系统 中包括一个判决模块(即上述的控制装置), 该判决模块所在的核心网, 以及该判决模 块控制进行负荷均衡的多个基站。 基于图 6的系统, 判决模块应用于核心网的负荷均衡方法包括如下步骤: 步骤一: e Bl、 e B2到 e Bn在同一个覆盖区域内, 将判决模块应用于核心网 中, 核心网与基站的 S1接口偶联个数为 n, 其中, n为判决模块可以接收到信息的基 站的最大个数, 如果判决模块接收到信息的基站个数超过了 n, 则认为此次接收到的 负荷均衡系数无效。 步骤二: 设置所有基站的"集中控制负荷均衡"开关使能, 设置负荷均衡资源上报 周期为 5000ms。
步骤三: e Bl、 e B2至 e Bn以 5000ms为周期, 计算本基站下所有小区的负荷 均衡系数, 并将负荷均衡系数和小区 ID列表通过内部消息经 S1接口发送给核心网的 判决模块。 步骤四: 判决模块收齐 n个基站发送的消息后, 将收集到的所有负荷均衡系数由 高到低排序, 并根据排序结果输出小区 ID列表。假设 eNB2的小区 1负荷均衡系数最 高, 判决模块将输出的小区 ID列表通过内部消息发送给 e B2。 步骤五: e B2收到判决模块的小区 ID列表后, 根据内部配置的负荷均衡相关参 数判断是否需要执行负荷均衡, 如果需要, 则选择 UE按照内部消息中的小区列表逐 个尝试切换, 执行负荷均衡。 上述方法不仅避免了基站计算所有邻区的负荷均衡系数, 还可以避免每个基站都 去判决是否需要执行负荷均衡和如何执行负荷均衡操作。 此外, 当基站之间的 X2 口 出现问题时, 基站之间无法上报资源使用情况, 无法执行负荷均衡系数的判决, 而本 优选实施例中的判决模块设置在核心网中, 通过内部设置的接口 (例如, S1接口) 与 其所控制的基站进行通信, 解决了当 X2口异常不能执行负荷均衡的问题。 实施例五 本优选实施例以上述判决模块应用于网元管理层且与当前负荷均衡处理方法兼容 为例进行说明, 图 7是根据本发明实施例五的判决模块应用于网元管理层且与当前负 荷均衡处理方法兼容的负荷均衡方法的系统示意图, 如图 7所示, 该系统中包括一个 判决模块(即上述的控制装置), 该判决模块所在的网元管理层一, 该判决模块控制进 行负荷均衡的多个基站, 以及使用当前负荷均衡处理方法进行负荷均衡的网元管理层 及其属辖的多个基站。 基于图 7的系统, 判决模块应用于网元管理层且与当前负荷均衡处理方法兼容的 负荷均衡方法包括如下步骤: 步骤一: 每个网元管理层管理的网元基站基本都在一个覆盖区域内, 将判决模块 应用于网元管理层一上。 步骤二: 设置网元管理层一下所有基站的 "集中控制负荷均衡 "开关使能, 设置负 荷均衡资源上报周期为 5000ms。 设置网元管理层二下所有基站的 "集中控制负荷均 衡"开关不使能, 但是负荷均衡功能使能。
步骤三: 网元管理层一发现其管辖的网元"集中控制负荷均衡"开关使能后, 告知 判决模块一, 判决模块一通过网口向 e Bll、 e B12至 e Bln发送内部消息, 要求上 报负荷均衡系数。 步骤四: e Bll、 e B12至 eNBln收到判决模块一发送的消息后, 给判决模块反 馈信息, 告知可以发送负荷均衡系数, 判决模块统计成功收到的反馈消息个数为 n。 步骤五: e Bll、 e B12至 eNBln以 5000ms为周期, 计算其各个小区的负荷均 衡系数, 并通过网口发送内部消息将小区 ID和负荷均衡系数告知判决模块一。 步骤六: 判决模块收一收齐 n个网元的消息后, 根据负荷均衡系数由高到低进行 排序, 输出小区 ID列表。 假设 e B12的小区 1负荷均衡系数最高, 判决模块将输出 的小区 ID列表通过内部消息发送给 eNB12。 步骤七: e B12收到判决模块的小区 ID列表后, 根据内部配置的负荷均衡相关 参数判断是否需要执行负荷均衡, 如果需要, 则选择 UE按照内部消息中的小区列表 逐个尝试切换, 执行负荷均衡。 步骤八: e B21、 e B22至 e B2n之间,通过 X2接口互相发送 RESOURCE STATUS REQUEST消息后, 并回复 RESOURCE STATUS RESPONSE消息。 步骤九: e B21、 eNB22至 e B2n, 以 RESOURCE STATUS REQUEST消息中携 带的时间 T为周期, 发送内部消息。 步骤十: e B21、 eNB22至 e B2n中, 每个 eNB收到 LOAD INFORMATION后, 按照消息中携带的信元计算其他基站小区的负荷均衡系数, 然后判断本基站小区的负 荷均衡系数有没有达到负荷均衡门限, 且属于负荷均衡系数最高的小区, 如果有, 则 选择 UE执行切换操作, 达到负荷均衡的目的, 如果没有, 则等到下一个 T后再此判 决是否需要执行负荷均衡。 步骤十一: 如果网元管理层一管辖下的判决模块异常, 可将"集中控制负荷均衡" 开关不使能。 e Bll、 e B12至 eNBln按照网元管理层二管辖的基站执行负荷均衡的 方式继续执行负荷均衡。 上述方法不仅避免了基站计算所有邻区的负荷均衡系数, 还可以避免每个基站都 去判决是否需要执行负荷均衡和如何执行负荷均衡操作。 此外, 当基站之间的 X2 口 出现问题时, 基站之间无法上报资源使用情况, 无法执行负荷均衡系数的判决, 而本 优选实施例中的判决模块设置在管理层中, 通过内部设置的接口 (例如, 网络接口)
与其所控制的基站进行通信, 解决了当 X2 口异常不能执行负荷均衡的问题, 而且与 现有方案兼容。 综上所述可以看出, 本发明实施例采用一个控制装置接收多个基站属辖的所有小 区的负荷均衡系数并按照数值进行排序, 将排序结果发给负荷均衡系数最高的小区对 应的基站的方式, 从而无需各个基站再计算周边同覆盖邻区的负荷均衡系数以及对这 些负荷均衡系数进行排序的操作。 与相关技术中每个基站均需要进行负荷均衡处理不 同, 本发明实施例仅使用一个控制装置实现负荷均衡处理, 从而减少了每个基站的开 销, 尤其是在小区数量比较多时, 计算量会大大减少, 进而解决了相关技术中的负荷 均衡处理方式存在浪费资源的问题, 提高了资源利用率。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
Claims
1. 一种负荷均衡处理方法, 包括:
控制装置接收多个基站属辖所有小区的负荷均衡系数;
所述控制装置按照所述负荷均衡系数的数值对所有小区进行排序, 并确定 所述负荷均衡系数最高的小区;
所述控制装置将排序结果发送至所述负荷均衡系数最高的小区对应的基 站。
2. 根据权利要求 1所述的方法, 其中, 所述控制装置将排序结果发送至所述负荷 均衡系数最高的小区对应的基站, 包括:
所述控制装置将各小区对应的小区标识按照所述排序结果生成小区标识列 表;
所述控制装置将所述小区标识列表发送至所述负荷均衡系数最高的小区对 应的基站。
3. 根据权利要求 1所述的方法, 其中, 所述控制装置设置于网络侧或者基站侧。
4. 根据权利要求 3所述的方法, 其中, 所述网络侧包括下列任意之一: 网元管理 层, 核心网。
5. 根据权利要求 4所述的方法, 其中, 所述控制装置设置于所述网元管理层时, 所述控制装置通过内部自定义接口接收所述负荷均衡系数。
6. 根据权利要求 4所述的方法, 其中, 所述控制装置设置于所述核心网时, 所述 控制装置通过 S1接口接收所述负荷均衡系数。
7. 根据权利要求 3所述的方法, 其中, 所述基站侧包括: 所述多个基站中的任意 一个基站。
8. 根据权利要求 7所述的方法, 其中, 所述控制装置设置于所述多个基站中的任 意一个基站时, 所述控制装置通过 X2接口接收所述负荷均衡系数。
9. 根据权利要求 1-8中任一项所述的方法, 其中, 所述控制装置将排序结果发送 至所述负荷均衡系数最高的小区对应的基站之后, 还包括:
所述负荷均衡系数最高的小区对应的基站根据该基站预先配置的负荷均衡 参数确定所述负荷均衡系数最高的小区需要执行负荷均衡时, 选择所述负荷均 衡系数最高的小区中的用户设备 UE,并令所述 UE按照所述排序结果以及预设 规则在各小区中依次进行切换尝试。
10. 根据权利要求 1-8中任一项所述的方法, 其中, 所述控制装置接收多个基站属 辖所有小区的负荷均衡系数之前, 还包括:
将每个基站中设置的集中控制负荷均衡开关设置为使能状态, 其中, 所述 集中控制负荷均衡开关用于控制所述集中控制负荷均衡开关所在的基站发送该 基站属辖所有小区的负荷均衡系数。
11. 根据权利要求 1-8中任一项所述的方法, 其中, 所述控制装置接收多个基站属 辖所有小区的负荷均衡系数之前, 还包括:
所述控制装置周期性接收所述多个基站发送的当前周期的负荷均衡系数, 其中, 所述当前周期的负荷均衡系数按如下步骤获取:
所述多个基站中的每个基站周期性计算该基站属辖所有小区在当前周期的 负荷均衡系数, 并将所述当前周期的负荷均衡系数发送至所述控制装置。
12. 一种控制装置, 包括:
接收模块, 设置为接收多个基站属辖所有小区的负荷均衡系数; 排序模块, 设置为按照所述接收模块接收到的所述负荷均衡系数的数值对 所有小区进行排序, 并确定所述负荷均衡系数最高的小区;
发送模块, 设置为将所述排序模块的排序结果发送至所述负荷均衡系数最 高的小区对应的基站。
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CN102547857A (zh) | 2012-07-04 |
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