WO2015101069A1 - 一种控制方法和装置 - Google Patents

一种控制方法和装置 Download PDF

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Publication number
WO2015101069A1
WO2015101069A1 PCT/CN2014/086829 CN2014086829W WO2015101069A1 WO 2015101069 A1 WO2015101069 A1 WO 2015101069A1 CN 2014086829 W CN2014086829 W CN 2014086829W WO 2015101069 A1 WO2015101069 A1 WO 2015101069A1
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Prior art keywords
cell
load
rru
rrus
load threshold
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PCT/CN2014/086829
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English (en)
French (fr)
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代建设
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020167018940A priority Critical patent/KR101794784B1/ko
Priority to JP2016543633A priority patent/JP6292642B2/ja
Priority to EP14876921.9A priority patent/EP3091777B1/en
Publication of WO2015101069A1 publication Critical patent/WO2015101069A1/zh
Priority to US15/196,963 priority patent/US9888395B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
    • H04W16/08—Load shedding arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • 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
    • H04W28/0284—Traffic management, e.g. flow control or congestion control detecting congestion or overload during communication
    • 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
    • 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
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0942—Management thereof using policies based on measured or predicted load of entities- or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the field of communication technologies, and more particularly to a control method and apparatus.
  • a multi-channel networking scheme using a BBU (Baseband Unit) + RRU (Remote Radio Unit) can quickly and effectively solve the problem of network depth coverage.
  • the BBU has a baseband resource sharing function, and the RRU is responsible for transmitting and receiving signals, and realizes communication between the wireless network system and the mobile station.
  • a BBU can support multiple RRUs. Multiple RRUs can form one cell or multiple cells. When the network is deployed, an appropriate number of RRUs can be selected to form a cell.
  • the inventor has found that the RRU in the cell may not meet the requirements of the network service, which may affect the network quality and reduce the user's network experience.
  • the application provides a control method and apparatus for improving network quality and improving user network experience.
  • the first aspect provides a control method comprising:
  • the baseband unit BBU determines load information of the first cell when determining that the network quality of the first cell of the multiple cells in the coverage area is reduced;
  • the load of the first cell is less than or equal to the first load threshold, determining, according to the RRU signal strength of the radio remote unit, the second cell in the neighboring cell of the first cell that has the strongest signal interference with the first cell;
  • the method further includes:
  • the first cell When the load of the first cell is greater than or equal to the second load threshold, the first cell is split according to the RRU signal strength of the radio remote unit, and a plurality of split cells including at least one RRU are obtained, so that the splitting is performed.
  • the load of the cell is smaller than the second load threshold, where the second load threshold is greater than the first load threshold.
  • a second possible implementation manner of the first aspect is further provided, where the RRU of the first cell and the second cell are The RRU is merged to include:
  • the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, the sum of the load in the second cell and the first cell is smaller than the second load threshold, and At least one RRU that is strong in signal interference with the first cell is merged into the first cell.
  • a third possible implementation manner of the first aspect is further provided, where a sum of loads in the second cell and the first cell is less than the The second load threshold, and the at least one RRU that is strong in signal interference with the first cell, is merged into the first cell, and includes:
  • the RRU of the second cell and the load of the first cell is smaller than the second load threshold, and the RRU with the strongest signal interference of the first cell is merged into the first cell;
  • a fourth possible implementation manner of the first aspect is further provided, where the first cell is split, and multiple splits including at least one RRU are obtained.
  • the cell includes:
  • the remaining RRUs of the first cell When the sum of the loads of the remaining RRUs of the first cell is smaller than the second load threshold, the remaining RRUs are used as the second split cell;
  • the sum of the loads of the remaining RRUs of the first cell is greater than or equal to the second load threshold, the sum of the load of the first cell and the load of the first split cell is smaller than the second load threshold. And the RRU with the strongest signal interference with the first split cell is merged into the first split cell;
  • the RRU signal strength is specifically obtained from multiple measurement reports reported by the mobile terminal, where the multiple measurement reports include multiple mobile terminals reporting when performing signal measurement. Measurement report;
  • determining, by the determining, that the second cell in the neighboring cell of the first cell that has the strongest signal interference with the first cell includes:
  • a control device comprising:
  • a load determining unit configured to determine load information of the first cell when determining that a network quality of the first cell of the multiple cells in the BBU coverage is decreased
  • a cell determining unit configured to determine, when the load of the first cell is less than or equal to the first load threshold, according to the RRU signal strength of the radio remote unit, determining that the first cell has the strongest signal interference with the first cell in the neighboring cell Second cell;
  • a cell merging unit configured to combine the RRU of the first cell with the RRU of the second cell to obtain a merged cell.
  • the method further includes:
  • a cell splitting unit configured to: when the load of the first cell is greater than or equal to a second load threshold, split the first cell according to the RRU signal strength of the radio remote unit to obtain a plurality of splits including at least one RRU
  • the cell is configured to make the load of the split cell smaller than the second load threshold, where the second load threshold is greater than the first load threshold.
  • the cell merging unit includes:
  • a first merging unit configured to merge all RRUs of the second cell into the first cell when a sum of loads of the first cell and the second cell is less than a second load threshold
  • a second merging unit configured to: when the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, the sum of the load in the second cell and the first cell is smaller than The second load threshold is included, and at least one RRU that is strong in signal interference with the first cell is merged into the first cell.
  • a fourth possible implementation of the second aspect is further provided, where the second merging unit includes:
  • a first merging unit configured to merge the RRU of the second cell with the load of the first cell that is smaller than the second load threshold, and the RRU with the strongest signal interference of the first cell, into the In the first cell;
  • a second merging sub-unit configured to repeatedly perform, that the sum of the load of the first cell in the remaining RRU of the second cell and the first cell after combining the RRU is smaller than the second load threshold, and the first cell after the merged RRU
  • the RRU with the strongest signal interference merges into the operation in the first cell until the The sum of the load of the remaining RRUs of the second cell is less than or equal to the first load threshold, and the remaining RRUs of the second cell are other RRUs in the second cell that do not include the RRUs that are merged into the first cell.
  • the cell splitting unit includes:
  • a first splitting unit configured to select that the sum of the loads in the first cell is smaller than the second load threshold, and the two RRUs with the strongest signal interference are combined to obtain a first split cell
  • a second splitting unit configured to: when the sum of the load of the remaining RRUs of the first cell is smaller than the second load threshold, use the remaining RRU as the second split cell;
  • a third splitting unit configured to: when the sum of the loads of the remaining RRUs of the first cell is greater than or equal to the second load threshold, the sum of the remaining RRUs of the first cell and the load of the first split cell An RRU that is smaller than the second load threshold and has the strongest signal interference with the first split cell is merged into the first split cell;
  • a fourth splitting unit configured to repeatedly perform a first split cell after the sum of the load of the first split cell in the remaining RRUs of the first cell and the merged RRU is smaller than the second load threshold, and after combining the RRUs And the step of merging the strongest RRU into the first split cell until the sum of the load of the remaining RRUs of the first cell is smaller than the second load threshold, where the remaining RRU of the first cell is the Other RRUs that have merged RRUs are not included in a cell.
  • the RRU signal strength is specifically obtained from multiple measurement reports reported by the mobile terminal, where the multiple measurement reports include multiple mobile terminals reporting when performing signal measurement. Measurement report;
  • the cell determining unit includes:
  • a first calculating unit configured to calculate, when the load of the first cell is less than or equal to the first load threshold, a ratio of a signal strength of the first cell in each measurement report to a signal strength of each neighboring cell of the first cell, where The cell signal strength in each measurement report is the sum of signal strengths of all RRUs belonging to the same cell in the measurement report;
  • a second calculating unit configured to accumulate a sum of a ratio of a signal strength of the first cell and a signal strength of the same neighboring cell in each measurement report calculated by the first calculating unit, as a first cell and the neighboring cell Signal interference strength;
  • a cell determining subunit configured to calculate, according to the second computing unit, the first cell and each neighboring cell The signal interference strength determines a second cell that has the strongest interference with the first cell signal.
  • the present application provides a control method and apparatus.
  • a baseband unit determines that a network quality of a first cell in a coverage area is reduced, determining load information of the first cell, when the load is less than or equal to the first load threshold, First, the second cell in the neighboring cell of the first cell that has the strongest interference with the first cell is determined, so that the RRU in the second cell is selected and merged into the first cell to obtain a merged cell.
  • the combined cell load is less than or equal to the first load threshold, it may be determined as the first cell, so that the RRU is further merged until the load of the merged cell is greater than the first load threshold.
  • the merged RRU is the RRU in the selected cell with the strongest signal interference. Therefore, the RRU merge can reduce the interference between cells, ensure the balance of load and interference, improve the network quality, and improve the user network experience.
  • FIG. 1 is a flowchart of an embodiment of a control method according to an embodiment of the present application
  • FIG. 2 is a flowchart of another embodiment of a control method according to an embodiment of the present application.
  • FIG. 3 is a flowchart of still another embodiment of a control method according to an embodiment of the present disclosure
  • FIG. 3a is a flowchart of a cell merging manner in an embodiment of the present application.
  • FIG. 3b is a flowchart of a cell splitting manner in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an embodiment of a control device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another embodiment of a control device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of still another embodiment of a control device according to an embodiment of the present application.
  • One of the main ideas of the present application may include:
  • the baseband unit determines that the network quality of the first cell in the coverage area is decreased, determining the load information of the first cell, and determining that the load is less than or equal to the first load threshold, determining the first cell in the neighboring cell, and the first
  • the second cell with the strongest interference of the cell signal selects the RRU in the second cell to be merged into the first cell to obtain a merged cell.
  • the combined cell load is less than or equal to the first load threshold, it may be determined as the first cell, so that the RRU is further merged until the load of the merged cell is greater than the first load threshold.
  • the combined RRU selection signal interferes with the RRU in the strongest cell. Therefore, the RRU merge reduces the interference between cells, ensures the balance of load and interference, improves the network quality, and improves the user network experience.
  • FIG. 1 is a flowchart of an embodiment of a control method according to an embodiment of the present application, where the method may include several steps:
  • a BBU Baseband Unit determines load information of the first cell when determining that a network quality of a first cell of the multiple cells in the coverage area is reduced.
  • the BBU can determine the network quality and load of the cell according to the cell information of the cell.
  • the message information may include information such as dropped call rate, handover success rate, number of handovers, load, spectrum efficiency, and the like.
  • KPI Key Performance Indicators
  • the first cell refers to any one of the multiple cells.
  • the embodiment of the present application is mainly applied to a multi-channel networking scheme of a BBU+RRU (Remote Radio Unit), and an application scenario in which one BBU supports multiple RRUs. Especially suitable for indoor network coverage.
  • BBU+RRU Remote Radio Unit
  • the inventors have found that the degradation of the network quality is usually caused by interference between cells and excessive cell load. Therefore, when the network quality is detected to be degraded, the cell load information may be used in the cell.
  • the RRU is adjusted to reduce inter-cell interference and improve network quality.
  • the RRU signal strength can be measured by the mobile terminal.
  • the load of the first cell is compared with the first load threshold. If the load of the first cell is less than or equal to the first load threshold, the RRU mode may be combined to reduce interference between cells and improve user experience.
  • the first load threshold defines the lowest value that the cell can carry the load.
  • the cell with the strongest signal interference with the first cell in the neighboring cell of the first cell may be first determined, and is defined as the second cell for convenience of description.
  • each cell is composed of RRUs, the signal interference strength can be determined according to the signal strength of the RRUs in the cell.
  • the greater the signal strength of the neighboring cell, the greater the interference to the first cell, and the second cell with the strongest signal interference with the first cell, that is, the second cell is determined.
  • the RRU of the first cell may be merged with the RRU of the second cell to form a new cell, that is, the merged cell, because the first cell is the most interfered with the signal of the first cell.
  • the RRUs of the two cells are merged, so that the interference between the merged cell and other cells is reduced, and the user experience can be improved.
  • the RRU of the second cell that is merged with the first cell RRU may be all the RRUs in the second cell or part of the RRUs in the second cell.
  • the second cell that can be specifically selected and the first cell A signal that interferes with a strong RRU.
  • the combined cell obtained by combining all the RRUs of the first cell and the second cell may still be less than or equal to the first load threshold, and the merged cell is determined again.
  • the operations of steps 101 to 103 are repeatedly performed as the first cell until the finally obtained merged cell is greater than the first load threshold.
  • the combined cell may perform parameter configuration and the like, so that the merged cell may be applied.
  • the RRU in the second cell is selected and merged into the first cell to obtain a merged cell.
  • the baseband unit may use the merged cell as the first cell to detect whether the load is less than or equal to the first load threshold, so that the RRU merge may be further performed until the load of the merged cell is greater than the first load threshold.
  • the combined RRU is the RRU in the cell with the strongest signal interference. Therefore, the RRU merge can reduce the interference between cells, ensure the balance of load and interference, improve the network quality, and improve the user network experience.
  • FIG. 2 is a flowchart of another embodiment of a control method according to an embodiment of the present application, where the method may include several steps:
  • the BBU determines load information of the first cell when determining that the network quality of the first cell in the multiple cells in the coverage is decreased.
  • step 202 Determine whether the load of the first cell is less than or equal to a first load threshold. If yes, go to step 203. If no, end the process.
  • the RRU signal strength can be triggered by the mobile terminal, and the measurement result can be carried in the measurement report (MR, Measurement Report) by the mobile terminal.
  • the RRU signal strength can be obtained from a plurality of measurement reports reported by the mobile terminal.
  • the plurality of measurement reports may include measurement reports obtained by the plurality of mobile terminals, and when the plurality of mobile terminals are included, the multiple measurement reports include each mobile terminal being measured separately during the measurement time period and possibly at different positions. Measurement report.
  • Each measurement report includes the measured signal strength of the RRU.
  • the RRU included in the measurement report measured at different locations is different, and the RRU included in the measurement report measured by different mobile terminals may also be different.
  • the signal strength of each cell can be statistically calculated, so that the signal interference strength between the RRUs, between the RRUs and the cells, and between the cells and the cells can be determined.
  • a plurality of measurement reports are specifically n, and the RRUs supported by the BBU are m, m and n are positive integers, and the measured RRU signal strengths of the plurality of measurement reports respectively can be Table 1 shows:
  • a ij represents the signal strength of the RRU j measured in the measurement report MR i .
  • the a ij is 0.
  • the signal interference strength between the RRUs, between the RRUs and the cells, and between the cells and the cells can be calculated.
  • the signal interference strength between any two RRUs may be the sum of the ratios of the two RRU signal strengths detected simultaneously. Taking Table 1 as an example, the signal interference strength of RRU i to RRU k is:
  • the signal interference strength is zero.
  • the signal interference strength between the RRU and the cell may be first calculating the ratio of the RRU signal strength to the cell signal strength in each measurement report, and then calculating the sum of all the ratios, where the cell signal strength is all of the cells belonging to the measurement report.
  • the sum of the signal strengths of the RRUs For example, if cell A includes RRU l , RRU p , and RRU q , then the signal interference strength of RRU q and cell A is:
  • the degree of signal interference between the cell and the cell may first calculate the ratio of the signal strength of the cell signal in each measurement report, and then calculate the sum of all the ratios.
  • cell A includes RRU l , RRU p , RRU q
  • cell B includes RRU x , RRU y , and RRU z
  • the signal interference strengths of cell A and cell B are:
  • the signal interference procedure between multiple RRUs and between multiple RRUs and cells is calculated in the same manner as described above.
  • the neighboring region having the strongest interference with the first cell signal can be determined.
  • the neighboring cell of the cell B includes the cell A, the cell C, and the cell D.
  • the signal interference strength of each neighboring cell and the cell B is calculated according to the above, and the cell with the largest signal interference strength value is the second cell.
  • the neighboring area with the strongest signal interference with the first cell may include multiple, that is, the signal interference strength of the two neighboring areas and the first cell are equal, and is greater than other neighboring areas and the first The signal interference strength of the cell, at which time a cell with a large number of RRUs can be selected as the second cell.
  • step 204 Determine whether the sum of the load of the first cell and the second cell is less than a second load threshold. If yes, go to step 205. If no, go to step 206.
  • the second load threshold is greater than the first load threshold, and the second load threshold defines a maximum value that the cell can bear the load. If the second load threshold is higher than the second load threshold, the cell network quality may be affected.
  • the merged cell may be determined to be the first cell, and may return to step 202 to continue execution.
  • the at least one RRU that is the sum of the load in the second cell and the first cell is smaller than the second load threshold, and the signal interference with the first cell is strong, and all the RRUs of the first cell
  • the merger is performed to obtain a merged cell.
  • the RRUs in the second cell may be selected and merged with the first cell.
  • the RRU in the second cell of the part may select that the signal interference with the first cell is strong, and The RRU with the sum of the first cell load being less than the second load threshold.
  • the signal interference strength of the RRU and the first cell may be as described in step 203 to improve the accuracy of the calculation.
  • the step 206 may include:
  • the RRU of the second cell and the load of the first cell is smaller than the second load threshold, and the RRU with the strongest signal interference of the first cell is merged into the first cell.
  • an RRU with the strongest signal interference is selected and merged into the first cell. Then determining whether the sum of the loads of the remaining RRUs of the second cell is greater than the first load threshold:
  • the merged first cell is used as the merged cell, and the remaining RRUs of the second cell form a new cell, and the merged cell and the new cell may serve as the first cell, so that the process may return to step 202. Continue to execute.
  • the sum of the remaining RRUs of the second cell is further selected, and the sum of the loads of the first cell after combining the RRUs is smaller than the second load threshold, and the first cell after the merged RRU is The RRU with the strongest signal interference is merged into the first cell until it is determined that the sum of the loads of the remaining RRUs of the second cell is less than or equal to the first load threshold, and the finally merged first cell is used as the merged cell.
  • the remaining RRUs of the second cell form a new cell, and the merged cell and the new cell may also be determined as the first cell, so that it may return to step 202 to continue execution.
  • the RRUs of the first cell and the second cell may be merged; the sum of the loads of the first cell and the second cell is greater than or equal to the second load.
  • the threshold a part of the RRUs in the second cell that have strong signal interference with the first cell and the sum of the load of the first cell is smaller than the second load threshold may be selected and merged into the first cell to obtain a merged cell.
  • the load of the merged cell is increased, and the merged cell can be used as the first cell.
  • the RRU merge can be continued until the load of the merged cell is greater than the first.
  • Load threshold The combined RRU is the RRU in the cell with the strongest signal interference selection. Therefore, the RRU merge reduces the interference between cells, ensures the balance of load and interference, improves the network quality, and improves the user network experience.
  • FIG. 3 is a flowchart of still another embodiment of a control method according to an embodiment of the present application. The method may include the following steps:
  • the BBU determines load information of the first cell when determining that the network quality of the first cell in the multiple cells in the coverage is decreased.
  • step 302 Determine whether the load of the first cell is less than or equal to a first load threshold. If yes, go to step 303. If no, end the process.
  • the RRU signal strength may be specifically obtained from a plurality of measurement reports reported by the mobile terminal, where the multiple measurement reports include measurement reports reported by the plurality of mobile terminals when performing signal measurement.
  • determining, in the neighboring cell of the first cell, the second cell that has the strongest signal interference with the first cell may specifically include:
  • the combining the RRU of the first cell with the RRU of the second cell may specifically include:
  • the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, the sum of the load in the second cell and the first cell is smaller than the second load threshold, and At least one RRU that is strong in signal interference with the first cell is merged into the first cell.
  • FIG. 3a shows a flowchart of a cell merging mode in this embodiment.
  • the step 304 may include:
  • step 3041 Determine whether the sum of the load of the first cell and the second cell is less than a second load threshold. If yes, go to step 3042. If no, go to step 3043.
  • step 3044 Determine whether the sum of the loads of the remaining RRUs of the second cell is less than or equal to the first load threshold. If not, go to step 3045. If yes, go to step 3046.
  • the first cell after combining the RRUs is used as a merged cell, and the remaining RRUs of the second cell form a new cell.
  • the merged cell and the new cell can again serve as the first cell, so that it can return to step 302 to continue execution.
  • the remaining RRU of the second cell is another RRU that does not include the RRU that is merged with the first cell in the second cell.
  • step 305 Determine whether the load of the first cell is greater than or equal to a second load threshold. If yes, go to step 306. If no, end the process.
  • the second load threshold defines the highest value that the first cell can carry the load. If the second load threshold is higher than the second load threshold, the cell network quality may be affected.
  • the first cell When the load of the first cell is greater than or equal to the second load threshold, the first cell may be split to obtain multiple split cells including at least one RRU. So that the load of the split cell can be smaller than the The second load threshold is used to improve network quality and enhance user experience.
  • FIG. 3 is a flowchart of a cell splitting manner in the embodiment, where the step 306 may include:
  • step 3062 Determine whether the sum of the loads of the remaining RRUs of the first cell is smaller than the second load threshold. If yes, go to step 3063. If no, go to step 3064.
  • the remaining RRU of the first cell is used as a second split cell.
  • the RRU of the remaining RRUs of the first cell and the load of the first split cell are smaller than the second load threshold, and the RRU with the strongest signal interference of the first split cell is merged into the The first split cell is returned to step 3062 to continue execution.
  • step 3061 is performed if the RRU in the first cell is greater than two.
  • the number of RRUs in the first cell includes only two, the two RRUs can respectively form a split cell, so that the first cell splits two split cells.
  • the remaining RRUs of the first cell are other RRUs in the first cell that do not include the RRUs that have been merged.
  • the baseband unit may use the merged cell as the first cell to detect whether the load is less than or equal to the first load threshold, so that the RRU merge may be further performed until the load of the merged cell is greater than the first load threshold.
  • the first cell When the load of the first cell is greater than or equal to the second load threshold, the first cell may be split to obtain a plurality of split cells including at least one RRU, so that the load of the split cell is smaller than the second load threshold.
  • the first cell may be split to obtain a plurality of split cells including at least one RRU, so that the load of the split cell is smaller than the second load threshold.
  • interference between cells can be reduced, load and interference balance can be ensured, network quality is improved, and user network experience is improved.
  • FIG. 4 is a schematic structural diagram of an embodiment of a control device according to an embodiment of the present disclosure, and the device may include:
  • the load determining unit 401 is configured to determine load information of the first cell when determining that the network quality of the first cell in the multiple cells in the BBU coverage is decreased.
  • the cell determining unit 402 is configured to: when the load of the first cell is less than or equal to the first load threshold, determine, according to the RRU signal strength of the radio remote unit, the signal interference between the neighboring cell of the first cell and the first cell Strong second cell.
  • the cell signal interference strength can be calculated by measuring the signal strength of each RRU measured in the measurement report.
  • the cell merging unit 403 is configured to combine the RRU of the first cell with the RRU of the second cell to obtain a merged cell.
  • the RRU of the second cell used for merging with the RRU of the first cell may select at least one RRU in the second cell that has strong interference with the first cell signal.
  • the combined cell may perform parameter configuration and the like, so that the merged cell may be applied.
  • the strong second cell is selected to merge the RRUs in the second cell into the first cell to obtain a combined cell, which improves the cell load.
  • the merged cell may in turn be determined to be the first cell.
  • the RRU combining may be further performed until the load of the merged cell is greater than the first load threshold.
  • the combined RRU selection signal interferes with the RRU in the strongest cell. Therefore, the RRU merge reduces the interference between cells, ensures the balance of load and interference, improves the network quality, and improves the user network experience.
  • FIG. 5 is a schematic structural diagram of another embodiment of a control device according to an embodiment of the present disclosure.
  • the device may include:
  • the load determining unit 501 is configured to determine load information of the first cell when determining that the network quality of the first cell in the multiple cells in the BBU coverage is decreased.
  • the cell determining unit 502 is configured to: when the load of the first cell is less than or equal to the first load threshold, determine, according to the RRU signal strength, a second strongest signal interference between the neighboring cell of the first cell and the first cell Community.
  • the RRU signal strength may be triggered by the mobile terminal, and the measurement result may be carried in the measurement report and reported by the mobile terminal.
  • the RRU signal strength can be obtained from a plurality of measurement reports reported by the mobile terminal.
  • the cell determining unit 502 may include:
  • the first calculating unit 5021 is configured to calculate, when the load of the first cell is less than or equal to the first load threshold, a ratio of a signal strength of the first cell in each measurement report to a signal strength of each neighboring cell of the first cell, where The cell signal strength in each measurement report is the sum of the signal strengths of all RRUs belonging to the same cell in the measurement report.
  • a second calculating unit 5022 configured to accumulate a sum of a ratio of a signal strength of the first cell and a signal strength of the same neighboring cell in each measurement report calculated by the first calculating unit, as a first cell and the neighboring cell Signal interference strength.
  • the cell determining sub-unit 5023 is configured to determine, according to the signal interference strength of the first cell and each neighboring cell calculated by the second calculating unit, a second cell that has the strongest interference with the first cell signal.
  • the cell merging unit 503 is configured to combine the RRU of the first cell with the RRU of the second cell to obtain a merged cell.
  • the cell merging unit 503 specifically includes:
  • the first merging unit 5031 is configured to merge all RRUs of the second cell into the first cell when a sum of loads of the first cell and the second cell is less than a second load threshold.
  • the second load threshold is greater than the first load threshold, and the second load threshold defines a maximum value that the cell can bear the load. If the second load threshold is higher than the second load threshold, the cell network quality may also be affected.
  • the second merging unit 5032 is configured to: when the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, the sum of the load in the second cell and the first cell is less than The second load threshold, and at least one RRU that is strong in signal interference with the first cell, is merged into the first cell.
  • the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, and only the RRUs in the second cell may be selected and merged with the first cell.
  • the RRU in the second cell of the part may select an RRU that has stronger signal interference with the first cell and the sum of the load with the first cell is smaller than the second load threshold.
  • first determining the neighboring area of the first cell has the strongest signal interference with the first cell.
  • the second cell so that when the sum of the loads of the first cell and the second cell is less than the second load threshold, the RRUs of the first cell and the second cell may be combined; the load of the first cell and the second cell And when the second load threshold is greater than or equal to the second load threshold, the part of the RRU that is strong in signal interference with the first cell in the second cell and the sum of the load of the first cell is smaller than the second load threshold may be selected and merged into the first cell to be merged.
  • the load of the merged cell is increased, and the merged cell can be determined as the first cell when its load is less than or equal to the first load threshold, so that the RRU merge can be continued until the load of the merged cell is greater than the first load threshold.
  • the combined RRU selection signal interferes with the RRU in the strongest cell. Therefore, the RRU merge reduces the interference between cells, ensures the balance of load and interference, improves the network quality, and improves the user network experience.
  • FIG. 6 is a schematic structural diagram of another embodiment of a control device according to an embodiment of the present disclosure.
  • the device may include:
  • the load determining unit 601 is configured to determine load information of the first cell when determining that the network quality of the first cell in the multiple cells in the BBU coverage is decreased.
  • the cell determining unit 602 is configured to: when the load of the first cell is less than or equal to the first load threshold, determine, according to the RRU signal strength of the radio remote unit, the signal interference between the neighboring cell of the first cell and the first cell Strong second cell.
  • the RRU signal strength may be triggered by the mobile terminal, and the measurement result may be carried in the measurement report and reported by the mobile terminal.
  • the RRU signal strength can be obtained from a plurality of measurement reports reported by the mobile terminal.
  • the cell determining unit may include:
  • a first calculating unit configured to calculate a ratio of a signal strength of the first cell in each measurement report to a signal strength of each neighboring cell in the first cell, when a load of the first cell is less than or equal to a first load threshold
  • the cell signal strength in each measurement report is the sum of signal strengths of all RRUs belonging to the same cell in the measurement report.
  • a second calculating unit configured to accumulate a sum of a ratio of a signal strength of the first cell and a signal strength of the same neighboring cell in each measurement report calculated by the first calculating unit, as a first cell and the neighboring cell Signal interference strength.
  • a cell determining subunit configured to determine, according to a signal interference strength of the first cell and each neighboring cell calculated by the second calculating unit, a second cell that has the strongest interference with the first cell signal.
  • the cell merging unit 603 is configured to combine the RRU of the first cell with the RRU of the second cell to obtain a merged cell.
  • the cell merging unit 603 may include:
  • the first merging unit 6031 is configured to merge all RRUs of the second cell into the first cell when a sum of loads of the first cell and the second cell is less than a second load threshold.
  • the second merging unit 6032 is configured to: when the sum of the load of the first cell and the second cell is greater than or equal to the second load threshold, the sum of the load in the second cell and the first cell is smaller than The second load threshold, and at least one RRU that is strong in signal interference with the first cell, is merged into the first cell.
  • the second merging unit 6032 may include:
  • the first merging unit 611 is configured to merge the RRU of the second cell with the load of the first cell that is smaller than the second load threshold, and combine the RRU with the strongest signal interference of the first cell into the In the first cell;
  • a second merging sub-unit 612 configured to repeatedly perform, that the sum of the load of the first cell in the remaining RRU of the second cell and the first cell after combining the RRU is smaller than the second load threshold, and the first cell after the merged RRU The signal is interfered with the strongest RRU, and the operation in the first cell is merged until the sum of the loads of the remaining RRUs of the second cell is smaller than the first load threshold, and the remaining RRU of the second cell is the Other RRUs that are merged into the RRU of the first cell are not included in the two cells.
  • the first merged cell is the merged cell, and the remaining RRUs of the second cell form a new cell.
  • the merged cell and the new cell may also be determined as the first cell, thereby continuing the cell merge operation.
  • a cell splitting unit 604 configured to: when a load of the first cell is greater than or equal to a second load threshold, Decoding the first cell according to the RRU signal strength of the radio remote unit to obtain a plurality of split cells including at least one RRU, so that the load of the split cell is smaller than the second load threshold, where The second load threshold is greater than the first load threshold.
  • the cell splitting unit 604 may include:
  • a first splitting unit 6041 configured to select that the sum of the loads in the first cell is smaller than the second load threshold, and the two RRUs with the strongest signal interference are combined to obtain a first split cell;
  • the second splitting unit 6042 is configured to: when the sum of the loads of the remaining RRUs of the first cell is smaller than the second load threshold, use the remaining RRU as the second split cell;
  • the third splitting unit 6043 is configured to: when the sum of the loads of the remaining RRUs of the first cell is greater than or equal to the second load threshold, the remaining RRUs of the first cell and the load of the first splitting cell And an RRU that is smaller than the second load threshold and has the strongest signal interference with the first split cell, is merged into the first split cell;
  • a fourth splitting unit 6044 configured to repeatedly perform a first split of a load of the first split cell in the remaining RRUs of the first cell and the first split cell after the merged RRU is smaller than the second load threshold, and after combining the RRUs a step of merging the RRU with the strongest signal interference of the cell into the first split cell until the sum of the loads of the remaining RRUs of the first cell is smaller than the second load threshold, where the remaining RRU of the first cell is the Other RRUs of the RRUs that have been merged are not included in the first cell.
  • the cell splitting unit performs a splitting operation if the RRU in the first cell is greater than two.
  • the number of RRUs in the first cell includes only two, the two RRUs can respectively form a split cell, so that the first cell splits two split cells.
  • the first cell may be split to obtain a plurality of split cells including at least one RRU, so that the load of the split cell is smaller than the second load threshold.
  • the RRU is merged or split in the cell, which reduces interference between cells, ensures balance of load and interference, improves network quality, and improves user network experience.
  • control device shown in FIG. 4-6 can be applied to the BBU.
  • the network quality can be improved by merging or splitting the RRU when the network quality is degraded. It can reduce the interference between cells, ensure the balance of load and interference, and improve the user network experience.
  • the embodiment of the present application further provides a schematic structural diagram of an embodiment of a baseband unit.
  • the baseband unit includes at least a processor 701 and a memory 702 and a transmitter 703 that are respectively connected to the processor 701 via a bus.
  • the memory 702 stores a set of program instructions, which may be a high speed RAM memory or a non-volatile memory such as at least one disk memory or the like.
  • the processor 701 is configured to invoke a program instruction stored in the memory 702, and perform the following operations:
  • the load of the first cell is less than or equal to the first load threshold, determining, according to the RRU signal strength of the radio remote unit, the second cell in the neighboring cell of the first cell that has the strongest signal interference with the first cell;
  • the processor may be a central processing unit CPU, or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the baseband unit may be used to perform any of the control methods shown in FIG. 1 to FIG. 3 provided by the embodiments of the present application.
  • the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

Abstract

本申请实施例提供了一种控制方法和装置，所述方法包括：基带单元BBU在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。本申请实施例提高了网络质量，提升了用户的网络体验。

Description

一种控制方法和装置
本申请要求于2013年12月30日提交中国专利局、申请号为201310746977.3、发明名称为“一种控制方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，更具体的说是涉及一种控制方法和装置。
背景技术
随着移动数据业务的发展，信号覆盖以及网络容量等问题，已经成为移动网络运营商日益关注的课题。
现有技术中一种采用BBU(Baseband Unit，基带单元)+RRU(Remote Radio Unit，射频拉远单元)的多通道组网方案，可以快速、有效的解决网络深度覆盖等问题。BBU具有基带资源共享功能，RRU负责信号的收发功能，实现无线网络系统和移动台之间的通信。
BBU和RRU之间通常采用光纤连接，一个BBU可以支持多个RRU，多个RRU可以组成一个小区或者多个小区，在网络部署时，可以选择合适数量的RRU进行合并组成一个小区。
但是，发明人在实现本发明的过程中发现，随着网络业务的变动，小区中的RRU可能已经无法满足网络业务的要求，从而会影响网络质量，降低用户的网络体验。
发明内容
本申请提供了一种控制方法和装置，用以提高网络质量以及提升用户网络体验。
为实现上述目的，本申请提供如下技术方案：
第一方面提供了一种控制方法，包括：
基带单元BBU在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；
当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；
将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
在所述第一方面的第一种可能实现方式中，所述方法还包括：
当所述第一小区的负载大于等于第二负载门限，根据所述射频拉远单元RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区，使得所述分裂小区的负载小于所述第二负载门限，其中，所述第二负载门限大于所述第一负载门限。
结合所述第一方面或第一方面的第一种可能实现方式，还提供了所述第一方面的第二种可能实现方式，所述将所述第一小区的RRU与所述第二小区的RRU进行合并包括：
当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中；
当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
结合所述第一方面的第二种可能实现方式，还提供了所述第一方面的第三种可能实现方式，所述将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中包括：
将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中；
重复执行将第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第二小区剩余RRU的负载之和小于等于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不 包括合并到所述第一小区的RRU的其他RRU。
结合所述第一方面的第一种可能实现方式，还提供了所述第一方面的第四种可能实现方式，所述将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区包括：
选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
当所述第一小区剩余RRU的负载之和小于所述第二负载门限时，将所述剩余RRU作为第二分裂小区；
当所述第一小区剩余RRU的负载之和大于等于所述第二负载门限时，将所述第一小区剩余RRU中，与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区；
重复执行将所述第一小区剩余RRU中，与合并RRU后的第一分裂小区的负载之和小于所述第二负载门限，且与合并RRU后的第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区的步骤，直至所述第一小区剩余RRU的负载之和小于所述第二负载门限，所述第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
在所述第一方面的第五种可能实现方式中，所述RRU信号强度具体是从移动终端上报的多个测量报告中获得，所述多个测量报告包括多个移动终端进行信号测量时上报的测量报告；
则所述确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区包括：
计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区的信号强度的比例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和；
累加每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度；
根据第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
第二方面，提供了一种控制装置，包括：
负载确定单元，用于在确定BBU覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；
小区确定单元，用于当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；
小区合并单元，用于将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
在所述第二方面的第一种可能实现方式中，还包括：
小区分裂单元，用于当所述第一小区的负载大于等于第二负载门限，根据所述射频拉远单元RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区，使得所述分裂小区的负载小于所述第二负载门限，其中，所述第二负载门限大于所述第一负载门限。
结合所述第二方面或所述第二方面的第二种可能实现方式，还提供了所述第二方面的第三种可能实现方式，所述小区合并单元包括：
第一合并单元，用于当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中；
第二合并单元，用于当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
结合所述第二方面的第三种可能实现方式，还提供了所述第二方面的第四种可能实现方式，所述第二合并单元包括：
第一合并子单元，用于将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中；
第二合并子单元，用于重复执行将第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第 二小区剩余RRU的负载之和小于等于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不包括合并到第一小区的RRU的其他RRU。
结合所述第二方面的第一种可能实现方式，还提供了所述第二方面的第五种可能实现方式，所述小区分裂单元包括：
第一分裂单元，用于选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
第二分裂单元，用于当所述第一小区剩余RRU的负载之和小于所述第二负载门限时，将所述剩余RRU作为第二分裂小区；
第三分裂单元，用于当所述第一小区剩余RRU的负载之和大于等于所述第二负载门限时，将所述第一小区剩余RRU中，与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区；
第四分裂单元，用于重复执行将所述第一小区剩余RRU中，与合并RRU后的第一分裂小区的负载之和小于所述第二负载门限，且与合并RRU后的第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区的步骤，直至所述第一小区剩余RRU的负载之和小于所述第二负载门限，所述第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
在所述第二方面的第六种可能实现方式中，所述RRU信号强度具体是从移动终端上报的多个测量报告中获得，所述多个测量报告包括多个移动终端进行信号测量时上报的测量报告；
则所述小区确定单元包括：
第一计算单元，用于当所述第一小区的负载小于等于第一负载门限，计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区信号强度的比例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和；
第二计算单元，用于累加所述第一计算单元计算的每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度；
小区确定子单元，用于根据所述第二计算单元计算的第一小区与各个邻区 的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
综上，本申请提供了一种控制方法和装置，基带单元确定其覆盖范围内的第一小区的网络质量降低时，确定第一小区的负载信息，当其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区。合并小区负载小于等于第一负载门限时，又可以被确定为第一小区，从而进一步进行RRU合并，直至合并小区的负载大于第一负载门限。合并的RRU是选择的信号干扰最强的小区中的RRU，因此通过RRU合并可以降低小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请实施例提供的一种控制方法一个实施例的流程图；
图2为本申请实施例提供的一种控制方法另一个实施例的流程图；
图3为本申请实施例提供的一种控制方法又一个实施例的流程图；
图3a为本申请实施例中一种小区合并方式的流程图；
图3b为本申请实施例中一种小区分裂方式的流程图；
图4为本申请实施例提供的一种控制装置一个实施例的结构示意图；
图5为本申请实施例提供的一种控制装置另一个实施例的结构示意图；
图6为本申请实施例提供的一种控制装置又一个实施例的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的主要思想之一可以包括：
基带单元确定其覆盖范围内的第一小区的网络质量降低时，确定该第一小区的负载信息，当其负载小于等于第一负载门限时，确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区。合并小区负载小于等于第一负载门限时，又可以被确定为第一小区，从而进一步进行RRU合并，直至合并小区的负载大于第一负载门限。合并的RRU选择信号干扰最强的小区中的RRU，因此通过RRU合并降低了小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
图1为本申请实施例提供的一种控制方法一个实施例的流程图，该方法可以包括几个步骤：
101：BBU(Baseband Unit，基带单元)在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
BBU可以根据小区的话统信息，确定小区的网络质量以及负载。该话统信息可以包括掉话率、切换成功率、切换次数、负载、频谱效率等信息。根据话统信息，可以判断其中的KPI(Key Performance Indicators，关键性能指标)，例如掉话率、切换成功率等是否低于门限值，从而可以确定网络质量是否降低。
本申请实施例中第一小区是指多个小区中的任意一个小区。
本申请实施例主要应用于BBU+RRU(Remote Radio Unit，射频拉远单元)的多通道组网方案，一个BBU支持多个RRU的应用情景。特别适用于室内的网络覆盖。
102：当所述第一小区的负载小于等于第一负载门限，根据RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
发明人在实现本发明的过程中发现，网络质量的降低通常是由于小区之间的干扰以及小区负载过高造成的，因此在检测到网络质量降低时，可以根据小区负载信息，对小区中的RRU进行调整，以能够降低小区间干扰，提高网络质量。
该RRU信号强度可以是通过移动终端测量得到的。
本实施例中将第一小区的负载与第一负载门限进行比较，若第一小区的负载小于等于第一负载门限，则可以通过合并RRU方式，降低小区之间的干扰，提升用户体验。
第一负载门限限定了小区可以承载负载的最低值。
具体的，本申请实施例中，可以首先确定第一小区的邻区中，与该第一小区的信号干扰最强的小区，为了描述方便，定义为第二小区。
相邻小区之间存在信号干扰，由于每一小区由RRU组成，因此信号干扰强度可以根据小区中的RRU的信号强度确定。
在一种可能实现方式中，邻区信号强度越大，对第一小区的干扰可能就越大，从而可以确定出与第一小区信号干扰最强的第二小区，也即第二小区为第一小区的邻区中的信号强度最大的小区。
103：将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
确定出第二小区后，可以将第一小区的RRU与该第二小区的RRU进行合并，形成新的小区，即合并小区，由于第一小区是和与该第一小区信号干扰最强的第二小区的RRU进行合并，从而使得合并小区与其他小区之间的干扰降低，可以提升用户体验。
其中，与第一小区RRU合并的第二小区的RRU可以是第二小区中的全部RRU或者第二小区中的部分RRU，为了进一步降低信号干扰，可以具体选择的第二小区中与第一小区信号干扰较强的RRU。
当然，在实际应用中，作为一种可能的情况，第一小区与第二小区的所有RRU进行合并得到的合并小区，其负载可能仍小于等于第一负载门限，此时该合并小区即又判定作为第一小区而重复执行步骤101～步骤103的操作，直至最终得到的合并小区大于该第一负载门限。
当合并小区的负载大于所述第一负载门限时，即可以对合并小区进行参数配置等操作，使得该合并小区可以应用。
在本实施例中，当第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区， 从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区。基带单元可以将合并小区作为第一小区，检测其负载是否小于等于第一负载门限，从而可以进一步进行RRU合并，直至合并小区的负载大于第一负载门限。合并的RRU是选择信号干扰最强的小区中的RRU，因此通过RRU合并，可以降低小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
图2为本申请实施例提供的一种控制方法另一个实施例的流程图，该方法可以包括几个步骤：
201：BBU在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
202：判断所述第一小区的负载是否小于等于第一负载门限，如果是，执行步骤203，如果否，则结束流程。
203：根据RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
作为一种可能的实现方式，RRU信号强度可以触发移动终端测量得到，测量结果可以携带在测量报告(MR，Measurement Report)中由移动终端上报。因此该RRU信号强度可以是从移动终端上报的多个测量报告中获得。
该多个测量报告可以包括多个移动终端进行测量得到的测量报告，当包括多个移动终端时，该多个测量报告包括每一移动终端在测量时间段内，可能处于不同位置时分别测量得到的测量报告。
每一测量报告中包括测量得到的RRU的信号强度，在不同位置测量得到的测量报告中包括的RRU不同，不同移动终端测量得到的测量报告中包括的RRU也可能不同。
因此根据多个测量报告中的RRU信号强度，可以统计得出各个小区的信号强度，从而可以确定出RRU之间、RRU与小区之间，以及小区与小区之间的信号干扰强度。
为了方便理解，假设多个测量报告具体为n个，BBU支持的RRU为m个，m和n均正整数，多个测量报告分别测量得到的RRU信号强度，可以以 表1进行表示：
表 1
  RRU1 RRU2 …… RRUj …… RRUm
MR1 a11 a12 …… a1j …… a1m
MR2 a21 a22 …… a2j …… a2m
…… …… …… …… …… …… ……
MRi ai1 ai2 …… aij …… aim
…… …… …… …… …… …… ……
MRn an1 an2 …… anj …… amm
其中，m≥3，1≤j≤m，n≥1，1≤i≤n。aij表示测量报告MRi中测量的RRUj的信号强度。n越大所确定的信号干扰强度准确。当测量报告MRi中未检测到RRUj的信号强度，则该aij即为0。
根据多个测量报告测量得到的RRU信号强度，可以计算RRU之间、RRU与小区之间，以及小区与小区之间的信号干扰强度，
作为一种可能的实现方式：
任两个RRU之间的信号干扰强度可以为同时检测到两个RRU信号强度的比例之和，以表1为例，RRUi对RRUk的信号干扰强度为：
Figure PCTCN2014086829-appb-000001
若测量报告中未检测到两个RRU的信号强度，则信号干扰强度为0。
RRU与小区之间的信号干扰强度，可以是首先计算每个测量报告中RRU信号强度与小区信号强度的比例，然后计算所有比例之和，小区信号强度为该测量报告中属于所述小区的所有RRU的信号强度之和。例如，小区A包括RRUl、RRUp、RRUq，则RRUq与小区A的信号干扰强度为：
Figure PCTCN2014086829-appb-000002
小区与小区之间的信号干扰程度，可以首先计算每个测量报告中小区信号 信号强度比例，然后计算所有比例之和。例如，小区A包括RRUl、RRUp、RRUq，小区B包括RRUx、RRUy、RRUz，则小区A和小区B的信号干扰强度为：
Figure PCTCN2014086829-appb-000003
多个RRU之间，以及多个RRU与小区之间的信号干扰程序计算方式与上述方式相同。
因此，根据多个测量报告中的RRU信号强度，可以确定出与第一小区信号干扰最强的邻区。例如，小区B的邻区包括小区A、小区C、小区D，按照上述计算各个邻区与小区B的信号干扰强度，信号干扰强度值最大的小区即为第二小区。
其中，作为一种可能的实现方式，与第一小区信号干扰最强的邻区可能包括多个，即存在两个邻区与第一小区的信号干扰强度相等，且大于其他邻区与第一小区的信号干扰强度，此时可以从中选择RRU个数多的小区作为第二小区。
204：判断所述第一小区与所述第二小区的负载之和是否小于第二负载门限，如果是，执行步骤205，如果否，执行步骤206。
205：将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
其中，第二负载门限大于该第一负载门限，该第二负载门限限定了小区可以承载负载的最高值，若高于该第二负载门限，则可能会影响小区网络质量。
若合并小区的负载仍小于等于第一负载门限，该合并小区又可以确定为第一小区，从而可以返回步骤202继续执行。
206：将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，与所述第一小区的全部RRU进行合并，得到合并小区。
若第一小区与第二小区的负载之和大于等于第二负载门限，则可以只选择部分第二小区中的RRU与第一小区进行合并。
该部分第二小区中的RRU可以选择的是与第一小区的信号干扰较强，且 与第一小区负载之和小于第二负载门限的RRU。RRU与第一小区的信号干扰强度可以参照步骤203中所述，以提高计算的准确度。
其中，作为一种可能的实现方式，该步骤206可以包括：
将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中。
重复执行将第二小区剩余RRU中与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第二小区剩余RRU的负载之和小于等于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不包括与第一小区进行合并的RRU的其他RRU。
即首先选择一个信号干扰最强的RRU合并到第一小区中。然后判断第二小区的剩余RRU的负载之和是否大于该第一负载门限：
如果小于等于该第一负载门限，则合并后的第一小区即作为合并小区，第二小区的剩余RRU组成新的小区，合并小区和新的小区多可以作为第一小区，从而可以返回步骤202继续执行。
如果大于该第一负载门限，则继续选择第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中，直至判断出第二小区剩余RRU的负载之和小于等于所述第一负载门限，则最终合并后的第一小区即作为合并小区，第二小区的剩余RRU组成新的小区，合并小区和新的小区还可能被确定为第一小区，从而可以返回步骤202继续执行。
在本实施例中，第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而在第一小区与第二小区的负载之和小于第二负载门限时，可以将第一小区与第二小区的RRU进行合并；在第一小区与第二小区的负载之和大于等于第二负载门限时，可以选择第二小区中与第一小区信号干扰强，且与第一小区的负载之和小于第二负载门限的部分RRU，合并到第一小区中，得到合并小区。合并小区的负载提高，且合并小区又可以作为第一小区，在其负载小于等于第一负载门限时，从而可以继续进行RRU合并，直至合并小区的负载大于第一 负载门限。合并的RRU是选择信号干扰最强的小区中的RRU，因此通过RRU合并降低了小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
图3为本申请实施例提供的一种控制方法又一个实施例的流程图，该方法可以包括以下步骤：
301：BBU在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
302：判断所述第一小区的负载是否小于等于第一负载门限，如果是，执行步骤303，如果否，则结束流程。
303：根据RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
其中，该RRU信号强度具体可以是从移动终端上报的多个测量报告中的获得，所述多个测量报告包括多个移动终端进行信号测量时上报的测量报告。
则确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区可以具体包括：
计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区的信号强度的比例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和；
累加每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度；
根据第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
304：将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
其中，将所述第一小区的RRU与所述第二小区的RRU进行合并可以具体包括：
当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中；
当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
作为一种可能的实现方式，如图3a所示，图3a示出了本实施例中一种小区合并方式的流程图，该步骤304可以包括：
3041：判断所述第一小区与所述第二小区的负载之和是否小于第二负载门限，如果是，执行步骤3042，如果否，执行步骤3043。
3042：将所述第二小区的全部RRU合并到所述第一小区中。
3043：选择第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU合并到所述第一小区中。
3044：判断第二小区剩余RRU的负载之和是否小于等于第一负载门限，如果否，执行步骤3045，如果是，执行步骤3046。
3045：将第二小区剩余RRU中与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中，并返回步骤3044。
3046：将合并RRU后的第一小区作为合并小区，第二小区的剩余RRU组成新的小区。
合并小区和新的小区又可以作为第一小区，从而可以返回步骤302继续执行。
所述第二小区剩余RRU为所述第二小区中不包括与第一小区进行合并的RRU的其他RRU。
305：判断所述第一小区的负载是否大于等于第二负载门限，如果是，执行步骤306，如果否，则结束流程。
第二负载门限限定了第一小区可以承载负载的最高值，若高于该第二负载门限，即可能会影响小区网络质量。
306：根据所述RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区。使得所述分裂小区的负载小于所述第二负载门限。
第一小区的负载大于等于第二负载门限时，可以将第一小区进行分裂，得到多个至少包括一个RRU的分裂小区。从而使得分裂小区的负载可以小于该 第二负载门限，以提高网络质量，提升用户体验。
其中，在一种可能实现方式中，如图3b所示，图3示出了本实施例中一种小区分裂方式的流程图，该步骤306可以包括：
3061：根据RRU信号强度，选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
3062：判断所述第一小区剩余RRU的负载之和是否小于所述第二负载门限，如果是，执行步骤3063，如果否，执行步骤3064。
3063：将所述第一小区剩余RRU作为第二分裂小区。
3064：将所述第一小区剩余RRU中与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区，并返回步骤3062继续执行。
其中，步骤3061的操作是在第一小区中的RRU大于两个的情况下执行。当第一小区中RRU数量仅包括两个时，则可以由两个RRU分别组成分裂小区，从而第一小区分裂出两个分裂小区。
第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
在本实施例中，当第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区。基带单元可以将合并小区作为第一小区，检测其负载是否小于等于第一负载门限，从而可以进一步进行RRU合并，直至合并小区的负载大于第一负载门限。当第一小区的负载大于等于第二负载门限时，可以将该第一小区进行分裂，得到多个至少包括一个的RRU的分裂小区，使得分裂小区的负载小于该第二负载门限。本实施例通过将小区进行合并或者分裂，可以降低小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动 作和模块并不一定是本申请所必须的。
图4为本申请实施例提供的一种控制装置一个实施例的结构示意图，该装置可以包括：
负载确定单元401，用于在确定BBU覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
小区确定单元402，用于当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
小区信号干扰强度可以是通过测量报告中测量得到的各RRU的信号强度计算出的。
小区合并单元403，用于将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
其中，为了进一步降低信号干扰，该用于与第一小区的RRU合并的第二小区的RRU可以选择的是第二小区中与第一小区信号干扰较强的至少一个RRU。
当合并小区的负载大于所述第一负载门限时，即可以对合并小区进行参数配置等操作，使得该合并小区可以应用。
在本实施例中，当基带单元覆盖范围内的第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区，提高了小区负载。该合并小区又可能被确定为第一小区。当其负载小于等于第一负载门限时，可以进一步进行RRU合并，直至合并小区的负载大于第一负载门限。合并的RRU选择信号干扰最强的小区中的RRU，因此通过RRU合并降低小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
图5为本申请实施例提供的一种控制装置另一个实施例的结构示意图，该装置可以包括：
负载确定单元501，用于在确定BBU覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
小区确定单元502，用于当所述第一小区的负载小于等于第一负载门限，根据RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
作为一种可能的实现方式，RRU信号强度可以触发移动终端测量得到，测量结果可以携带在测量报告中由移动终端上报。因此该RRU信号强度可以是从移动终端上报的多个测量报告中的获得。
则所述小区确定单元502可以包括：
第一计算单元5021，用于当所述第一小区的负载小于等于第一负载门限，计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区信号强度的比例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和。
第二计算单元5022，用于累加所述第一计算单元计算的每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度。
小区确定子单元5023，用于根据所述第二计算单元计算的第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
小区合并单元503，用于将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
其中，该小区合并单元503具体包括：
第一合并单元5031，用于当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中。
第二负载门限大于该第一负载门限，该第二负载门限限定了小区可以承载负载的最高值，若高于该第二负载门限，也可能会影响小区网络质量。
第二合并单元5032，用于当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
第一小区与第二小区的负载之和大于等于第二负载门限，则可以只选择部分第二小区中的RRU与第一小区进行合并。
该部分第二小区中的RRU可以选择的是与第一小区的信号干扰较强，且与第一小区负载之和小于第二负载门限的RRU。
在本实施例中，基带单元覆盖范围内的第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而在第一小区与第二小区的负载之和小于第二负载门限时，可以将第一小区与第二小区的RRU进行合并；在第一小区与第二小区的负载之和大于等于第二负载门限时，可以选择第二小区中与第一小区信号干扰强，且与第一小区的负载之和小于第二负载门限的部分RRU，合并到第一小区中，得到合并小区。合并小区的负载提高，且合并小区在其负载小于等于第一负载门限时，可以被确定为第一小区，从而可以继续进行RRU合并，直至合并小区的负载大于第一负载门限。合并的RRU选择信号干扰最强的小区中的RRU，因此通过RRU合并降低了小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
图6为本申请实施例提供的一种控制装置另一个实施例的结构示意图，该装置可以包括：
负载确定单元601，用于在确定BBU覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息。
小区确定单元602，用于当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区。
其中，RRU信号强度可以触发移动终端测量得到，测量结果可以携带在测量报告中由移动终端上报。因此该RRU信号强度可以是从移动终端上报的多个测量报告中的获得。
则所述小区确定单元可以包括：
第一计算单元，用于当所述第一小区的负载小于等于第一负载门限，计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区信号强度的比 例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和。
第二计算单元，用于累加所述第一计算单元计算的每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度。
小区确定子单元，用于根据所述第二计算单元计算的第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
小区合并单元603，用于将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
作为一种可能的实现方式，该小区合并单元603可以包括：
第一合并单元6031，用于当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中。
第二合并单元6032，用于当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
作为一种可能的实现方式，该第二合并单元6032可以包括：
第一合并子单元611，用于将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中；
第二合并子单元612，用于重复执行将第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第二小区剩余RRU的负载之和小于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不包括合并到第一小区的RRU的其他RRU。
最终合并后的第一小区即作为合并小区，第二小区的剩余RRU组成新的小区，合并小区和新的小区还可能被确定为第一小区，从而继续执行小区合并的操作。
小区分裂单元604，用于当所述第一小区的负载大于等于第二负载门限， 根据所述射频拉远单元RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区，使得所述分裂小区的负载小于所述第二负载门限，其中，所述第二负载门限大于所述第一负载门限。
作为一种可能的实现方式，该小区分裂单元604可以包括：
第一分裂单元6041，用于选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
第二分裂单元6042，用于当所述第一小区剩余RRU的负载之和小于所述第二负载门限时，将所述剩余RRU作为第二分裂小区；
第三分裂单元6043，用于当所述第一小区剩余RRU的负载之和大于等于所述第二负载门限时，将所述第一小区剩余RRU中，与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区；
第四分裂单元6044，用于重复执行将所述第一小区剩余RRU中，与合并RRU后的第一分裂小区的负载之和小于所述第二负载门限，且与合并RRU后的第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区的步骤，直至所述第一小区剩余RRU的负载之和小于所述第二负载门限，所述第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
其中，小区分裂单元是在第一小区中的RRU大于两个的情况下执行分裂操作。当第一小区中RRU数量仅包括两个时，则可以由两个RRU分别组成分裂小区，从而第一小区分裂出两个分裂小区。
在本实施例中，当基带单元覆盖范围内的第一小区的网络质量降低，且其负载小于等于第一负载门限时，首先确定第一小区的邻区中，与该第一小区信号干扰最强的第二小区，从而选择该第二小区中的RRU合并到该第一小区中，得到合并小区。当第一小区的负载大于等于第二负载门限时，可以将该第一小区进行分裂，得到多个至少包括一个的RRU的分裂小区，使得分裂小区的负载小于该第二负载门限。本实施例通过小区中RRU的合并或分裂，降低了小区之间的干扰，保证了负载和干扰的平衡，提高了网络质量，提升了用户网络体验。
在实际应用中，图4-图6所示控制装置可以应用于BBU中，通过部署本实施例所述控制装置的BBU可以在网络质量下降时，通过RRU的合并或分裂来提高网络质量，同时可以降低小区之间的干扰，保证了负载和干扰的平衡，提升了用户网络体验。
通过以上描述可知，本领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件平台的方式来实现。参见图7，本申请实施例还提供了一种基带单元一个实施例的结构示意图。该基带单元至少包括处理器701和与处理器701通过总线分别连接的存储器702、发送器703。
该存储器702存储一组程序指令，该存储器可以是是高速RAM存储器，也可能是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器等。
该处理器701，用于调用该存储器702存储的程序指令，执行如下操作：
在确定基带单元覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；
当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；
将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
其中，该处理器可能是一个中央处理器CPU，或者是特定集成电路ASIC(Application Specific Integrated Circuit)，或者是被配置成实施本发明实施例的一个或多个集成电路。
可选地，该基带单元可以用于执行本申请实施例提供的图1-图3所示的任一控制方法。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包 括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
为了描述的方便，描述以上装置时以功能分为各种单元分别描述。当然，在实施本申请时可以把各单元的功能在同一个或多个软件和/或硬件中实现。
通过以上的实施方式的描述可知，本领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件平台的方式来实现。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例或者实施例的某些部分所述的方法。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下，在其它实施例中实现。因此，本申请将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (12)

  1. 一种控制方法，其特征在于，包括：
    基带单元BBU在确定其覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；
    当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；
    将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    当所述第一小区的负载大于等于第二负载门限，根据所述射频拉远单元RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区，使得所述分裂小区的负载小于所述第二负载门限，其中，所述第二负载门限大于所述第一负载门限。
  3. 根据权利要求1或2所述的方法，其特征在于，所述将所述第一小区的RRU与所述第二小区的RRU进行合并包括：
    当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中；
    当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
  4. 根据权利要求3所述的方法，其特征在于，所述将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中包括：
    将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中；
    重复执行将第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第二小区剩余RRU的负载之和小于等于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不 包括合并到所述第一小区的RRU的其他RRU。
  5. 根据权利要求2所述的方法，其特征在于，所述将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区包括：
    选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
    当所述第一小区剩余RRU的负载之和小于所述第二负载门限时，将所述剩余RRU作为第二分裂小区；
    当所述第一小区剩余RRU的负载之和大于等于所述第二负载门限时，将所述第一小区剩余RRU中，与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区；
    重复执行将所述第一小区剩余RRU中，与合并RRU后的第一分裂小区的负载之和小于所述第二负载门限，且与合并RRU后的第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区的步骤，直至所述第一小区剩余RRU的负载之和小于所述第二负载门限，所述第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
  6. 根据权利要求1所述的方法，其特征在于，所述RRU信号强度具体是从移动终端上报的多个测量报告中获得，所述多个测量报告包括多个移动终端进行信号测量时上报的测量报告；
    则所述确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区包括：
    计算每一测量报告中第一小区的信号强度与所述第一小区的各个邻区的信号强度的比例，其中，每一测量报告中小区的信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和；
    累加每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度；
    根据第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
  7. 一种控制装置，其特征在于，包括：
    负载确定单元，用于在确定BBU覆盖范围内的多个小区中的第一小区的网络质量降低时，确定所述第一小区的负载信息；
    小区确定单元，用于当所述第一小区的负载小于等于第一负载门限，根据射频拉远单元RRU信号强度，确定所述第一小区的邻区中与所述第一小区信号干扰最强的第二小区；
    小区合并单元，用于将所述第一小区的RRU与所述第二小区的RRU进行合并，得到合并小区。
  8. 根据权利要求7所述的装置，其特征在于，还包括：
    小区分裂单元，用于当所述第一小区的负载大于等于第二负载门限，根据所述射频拉远单元RRU信号强度，将所述第一小区进行分裂，得到多个至少包括一个RRU的分裂小区，使得所述分裂小区的负载小于所述第二负载门限，其中，所述第二负载门限大于所述第一负载门限。
  9. 根据权利要求7或8所述的装置，其特征在于，所述小区合并单元包括：
    第一合并单元，用于当所述第一小区与所述第二小区的负载之和小于第二负载门限时，将所述第二小区的全部RRU合并到所述第一小区中；
    第二合并单元，用于当所述第一小区与所述第二小区的负载之和大于等于所述第二负载门限时，将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰强的至少一个RRU，合并到所述第一小区中。
  10. 根据权利要求9所述的装置，其特征在于，所述第二合并单元包括：
    第一合并子单元，用于将第二小区中与所述第一小区的负载之和小于所述第二负载门限，且与所述第一小区的信号干扰最强的RRU，合并到所述第一小区中；
    第二合并子单元，用于重复执行将第二小区剩余RRU中，与合并RRU后的第一小区的负载之和小于所述第二负载门限，且与所述合并RRU后的第一小区的信号干扰最强的RRU，合并到所述第一小区中的操作，直至所述第二小区剩余RRU的负载之和小于等于所述第一负载门限，所述第二小区剩余RRU为所述第二小区中不包括合并到第一小区的RRU的其他RRU。
  11. 根据权利要求8所述的装置，其特征在于，所述小区分裂单元包括：
    第一分裂单元，用于选择所述第一小区中负载之和小于所述第二负载门限，且信号干扰最强的两个RRU进行合并，得到第一分裂小区；
    第二分裂单元，用于当所述第一小区剩余RRU的负载之和小于所述第二负载门限时，将所述剩余RRU作为第二分裂小区；
    第三分裂单元，用于当所述第一小区剩余RRU的负载之和大于等于所述第二负载门限时，将所述第一小区剩余RRU中，与所述第一分裂小区的负载之和小于所述第二负载门限，且与所述第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区；
    第四分裂单元，用于重复执行将所述第一小区剩余RRU中，与合并RRU后的第一分裂小区的负载之和小于所述第二负载门限，且与合并RRU后的第一分裂小区的信号干扰最强的RRU，合并到所述第一分裂小区的步骤，直至所述第一小区剩余RRU的负载之和小于所述第二负载门限，所述第一小区剩余RRU为所述第一小区中不包括已进行合并的RRU的其他RRU。
  12. 根据权利要求7所述的装置，其特征在于，所述RRU信号强度具体是从移动终端上报的多个测量报告中获得，所述多个测量报告包括多个移动终端进行信号测量时上报的测量报告；
    则所述小区确定单元包括：
    第一计算单元，用于当所述第一小区的负载小于等于第一负载门限，计算每一测量报告中第一小区信号强度与所述第一小区的各个邻区信号强度的比例，其中，每一测量报告中小区信号强度为所述测量报告中属于同一小区的所有RRU的信号强度之和；
    第二计算单元，用于累加所述第一计算单元计算的每一测量报告中所述第一小区信号强度与同一邻区的信号强度的比例之和，作为第一小区与所述邻区的信号干扰强度；
    小区确定子单元，用于根据所述第二计算单元计算的第一小区与各个邻区的信号干扰强度，确定与所述第一小区信号干扰最强的第二小区。
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