WO2017161879A1 - 公共导频调整方法和装置 - Google Patents

公共导频调整方法和装置 Download PDF

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Publication number
WO2017161879A1
WO2017161879A1 PCT/CN2016/103505 CN2016103505W WO2017161879A1 WO 2017161879 A1 WO2017161879 A1 WO 2017161879A1 CN 2016103505 W CN2016103505 W CN 2016103505W WO 2017161879 A1 WO2017161879 A1 WO 2017161879A1
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WO
WIPO (PCT)
Prior art keywords
uplink
base station
downlink
reconfiguration
preset
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Application number
PCT/CN2016/103505
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English (en)
French (fr)
Inventor
詹建明
张增杰
刘涛
霍燚
包晓瑜
刘志斌
刘银磊
余擎旗
苑伟涛
蒲迎春
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017161879A1 publication Critical patent/WO2017161879A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Definitions

  • the present disclosure relates to the field of communications technologies, for example, to a common pilot adjustment method and apparatus.
  • neighboring cells may cause an area where uplink and downlink are unbalanced between adjacent cells due to differences in uplink load.
  • UMTS Universal Mobile Telecommunications System
  • two base stations base station A and base station B
  • the A cell covered by the base station A and the B cell covered by the base station B are adjacent to each other, and some areas overlap. Due to the self-interference characteristics of the communication network, the capacity of the system is limited. If the uplink load of the base station A is large and the uplink load of the base station B is small, a cell breathing effect is generated, and the uplink coverage of the A cell is reduced. The uplink coverage will expand, creating an area where the uplink and downlink are unbalanced. At this time, if the user equipment (User Equipment, UE) is located in the uplink and downlink unbalanced area, voice drop, packet switching (PS) call drop, and uplink and downlink data service traffic may be low. At the same time, the UE will enhance the uplink signal transmitted in order to obtain the service, and the enhanced uplink signal will cause serious uplink interference to the B cell, which may affect the normal use of users in the uplink and downlink balance area.
  • UE User Equipment
  • the uplink and downlink unbalanced areas existing between the neighboring cells are large; if the uplink load of the neighboring cells is small, the uplink and downlink existing between the neighboring cells are The link imbalance area is small. The size change of the uplink and downlink unbalanced area may cause the uplink interference of the cell to change.
  • the uplink and downlink imbalance caused by the difference in uplink load between adjacent cells may interfere with the signals of the neighboring cell base stations and may also affect the service experience of the UE.
  • the present disclosure provides a common pilot adjustment method and apparatus, which can solve the technical problem of signal interference of a neighboring cell base station caused by an uplink load difference of a neighboring cell.
  • an embodiment of the present disclosure provides a common pilot adjustment method, which may include:
  • the target base station is selected to perform pilot reconfiguration according to the uplink downlink imbalance or the uplink capacity parameter.
  • the steps can include:
  • the method may further include:
  • the pilot enhancement amount is obtained according to the primary common pilot channel power margin of the target base station, and the target base station is adjusted.
  • Primary common pilot channel power for pilot reconfiguration
  • the step of selecting a target base station to perform pilot reconfiguration according to the uplink and downlink unbalance degree or the uplink capacity parameter is performed.
  • the target base station is selected to perform pilot reconfiguration according to the uplink downlink imbalance or the uplink capacity parameter.
  • the method may further include:
  • the step of determining that the uplink and downlink imbalance meets the preset reconfiguration condition includes:
  • the embodiment of the present disclosure further provides a common pilot adjustment apparatus, which may include:
  • a monitoring module configured to monitor uplink capacity parameters of multiple neighboring cell base stations
  • a balancing module configured to acquire uplink and downlink unbalances of the plurality of neighboring cell base stations according to the uplink capacity parameter
  • a reconfiguration module configured to: when the uplink and downlink unbalance degree meets a preset reconfiguration condition, select a target base station to perform pilot reconfiguration according to the uplink and downlink unbalance degree or the uplink capacity parameter.
  • the reconfiguration module may include:
  • a target unit configured to: when the uplink and downlink unbalance degree meets a preset reconfiguration condition, according to the uplink and downlink unbalance degree or the uplink capacity parameter, from the multiple cell base stations Select the target base station;
  • the first reconfiguration unit is configured to adjust a primary common pilot channel power of the target base station according to the uplink and downlink unbalance degree to perform pilot reconfiguration.
  • the reconfiguration module may further include:
  • An evaluation unit configured to determine, according to the uplink and downlink unbalance, whether a primary common pilot channel power margin of the target base station meets a preset adjustment condition
  • a second reconfiguration unit configured to: when the primary common pilot channel power headroom of the target base station does not meet a preset adjustment condition, acquire a pilot enhancement amount according to a primary common pilot channel power margin of the target base station Adjusting a primary common pilot channel power of the target base station to perform pilot reconfiguration;
  • the first reconfiguration unit is further configured to: when the primary common pilot channel power headroom of the target base station meets a preset adjustment condition, adjust a target of the target base station according to the uplink and downlink unbalance degree Common pilot channel power for pilot reconfiguration.
  • the method may further include:
  • An absolute value module configured to obtain an absolute value of the uplink and downlink unbalance
  • a first determining module configured to determine whether an absolute value of the uplink and downlink unbalance degree reaches a pre-predetermined value Unbalanced threshold value
  • a condition module configured to determine that the uplink and downlink unbalance meets a preset reconfiguration condition when the absolute value of the uplink and downlink unbalance reaches a preset unbalance threshold.
  • the method may further include:
  • the second judging module is configured to determine, according to the absolute value of the uplink and downlink unbalance degree and the pre-configured record table, whether the change amount of the uplink and downlink unbalance degree reaches a preset variable threshold value,
  • the record table records uplink and downlink unbalance levels during previous pilot reconfigurations;
  • the condition module may be further configured to: when the amount of change in the uplink and downlink unbalance reaches a preset variable threshold, and the absolute value of the uplink and downlink unbalance reaches a preset imbalance When the threshold value is reached, it is determined that the uplink and downlink unbalance degree satisfies a preset reconfiguration condition.
  • Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions for performing any of the above common pilot adjustment methods.
  • Embodiments of the present disclosure also provide an electronic device including one or more processors, a memory, and one or more programs, the one or more programs being stored in a memory when being processed by one or more processors When executed, any of the above common pilot adjustment methods are performed.
  • Embodiments of the present disclosure also provide a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer
  • the computer is caused to perform any of the above-described common pilot adjustment methods.
  • a common pilot adjustment method and apparatus by monitoring an uplink capacity parameter of a neighboring cell base station in real time, to obtain an uplink and downlink unbalance degree of a neighboring cell, and uplink and downlink of the adjacent cell
  • the unbalanced condition reaches the preset reconfiguration condition
  • the base station with the smaller uplink load in the current neighboring cell base station is selected as the target base station, and the power of the primary common pilot channel is reconfigured, so that the base station with enhanced uplink load can be enhanced.
  • the main common pilot channel power thereby expanding the downlink signal coverage of the smaller base station with the uplink load, reducing the uplink signal interference received by the smaller base station, eliminating or reducing the unbalanced area, and enabling the user equipment in the unbalanced area Normal access to services reduces the impact on users in the cell.
  • the embodiment of the present disclosure can also reduce signal interference received by the neighboring cell base station, reduce the impact on the user service in the cell, and improve the user experience.
  • FIG. 1 is a schematic flow chart of a first embodiment of a public pilot adjustment method according to the present disclosure
  • FIG. 2 is a schematic flowchart of a second embodiment of a common pilot adjustment method according to the present disclosure
  • FIG. 3 is a schematic flowchart of a third embodiment of a common pilot adjustment method according to the present disclosure.
  • FIG. 4 is a schematic flowchart of a fourth embodiment of a common pilot adjustment method according to the present disclosure.
  • FIG. 5 is a schematic flowchart diagram of a fifth embodiment of a common pilot adjustment method according to the present disclosure.
  • FIG. 6 is a schematic diagram of functional modules of a first embodiment of a common pilot adjusting apparatus according to the present disclosure
  • FIG. 7 is a schematic diagram of functional modules of a second embodiment of a common pilot adjustment apparatus according to the present disclosure.
  • FIG. 8 is a schematic diagram of functional modules of a third embodiment of a common pilot adjusting apparatus according to the present disclosure.
  • FIG. 9 is a schematic diagram of functional modules of a fourth embodiment of a common pilot adjusting apparatus according to the present disclosure.
  • FIG. 10 is a schematic diagram of functional modules of a fifth embodiment of a common pilot adjusting apparatus according to the present disclosure.
  • FIG. 11 is a schematic diagram of a link balancing scenario of a neighboring cell base station according to an embodiment of the present disclosure
  • FIG. 12 is a schematic diagram of a link imbalance of a neighboring cell base station according to an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram of an unbalanced application scenario of a neighboring cell base station link according to an embodiment of the present disclosure
  • FIG. 14 is a schematic diagram of an unbalanced application scenario of a neighboring cell base station link according to an embodiment of the present disclosure
  • FIG. 15 is a schematic diagram of an unbalanced application scenario of a neighboring cell base station link according to an embodiment of the present disclosure
  • FIG. 16 is a schematic structural diagram of hardware of an electronic device according to an embodiment of the present disclosure.
  • the uplink and downlink unbalance of the neighboring cells may occur due to the difference in the uplink load of the neighboring cell base stations, which may interfere with the signal of the neighboring cell base station and affect the service experience of the user equipment.
  • the present disclosure provides a solution that can enhance the primary common pilot channel power of a base station with a smaller uplink load in a neighboring cell base station, thereby expanding the downlink signal coverage of the base station with smaller uplink load and converting the unbalanced area to soft.
  • the switching area reduces the uplink signal interference received by the base station with a small uplink load, so that the user equipment in the original unbalanced area can normally obtain the service, and the impact on the user in the cell can also be reduced.
  • a first embodiment of a common pilot adjustment method provides a common pilot adjustment method, including S10-S30.
  • an uplink capacity parameter of a plurality of neighboring cell base stations is monitored.
  • the embodiment of the present disclosure dynamically adjusts the common pilot channel power of the cell by monitoring the running state of the neighboring cell, and the user of the uplink and downlink unbalanced zone is switched to the soft handover user, so that the unbalanced zone user can enjoy the macro diversity set and The upside gains.
  • the radio network controller can monitor the running status of the cell, adjust the common pilot of the cell, and perform link management.
  • the management of the cell site can be performed by other devices, and can be flexibly set according to actual needs.
  • the RNC monitors uplink capacity parameters of multiple neighboring cell base stations in real time, and obtains an operation status of the current neighboring cell.
  • the uplink capacity parameter obtained by the RNC monitoring includes various uplink capacity parameters currently running by the plurality of cell base stations, such as an uplink load L (Load), a noise increase (RoT), and the like.
  • Load uplink load L
  • RoT noise increase
  • the uplink load characterizes the uplink load situation of different cell base stations; the noise increment characterizes the uplink noise floor rise of different cell base stations.
  • the RNC After acquiring the uplink capacity parameters of the multiple cell base stations, the RNC acquires uplink and downlink unbalance degrees of the neighboring cell base stations according to the uplink capacity parameters.
  • the uplink and downlink unbalance of the neighboring cell is obtained as a DU, and the imbalance of the current neighboring cell link is calculated according to the noise increment or the uplink load of the neighboring cell.
  • an example is given by currently having 2 neighboring cell base stations.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is the B cell, and the B cell is served by the base station B.
  • the RNC monitors the link running status of the base station A and the base station B in real time, and obtains the uplink capacity parameters of the base station A and the base station B.
  • the obtained uplink capacity parameters may include the noise increment RoT and the uplink load L.
  • the uplink and downlink unbalance is calculated according to the noise increment.
  • the noise increment of the A cell may be RoTa
  • the noise increment of the B cell is RoTb
  • the functional relationship between the uplink and downlink unbalance and RoTa and RoTb can be flexibly set.
  • the uplink and downlink unbalance is calculated according to the uplink load.
  • the load of the A cell may be La
  • the load of the B cell is Lb
  • the functional relationship between the uplink and downlink unbalance and La and Lb can be flexibly set.
  • the uplink and downlink unbalance of the neighboring cell base station is obtained.
  • the resulting imbalance describes the degree of uplink and downlink imbalance of the current neighboring cell base station.
  • the target base station is selected to perform pilot reconfiguration according to the uplink and downlink unbalance degree or the uplink capacity parameter.
  • the RNC After obtaining the uplink and downlink unbalance, if the uplink and downlink unbalance meets the preset reconfiguration condition, the RNC selects the target base station to perform pilot reconfiguration according to the uplink and downlink unbalance or uplink capacity parameters. .
  • the RNC is pre-configured with a reconfiguration condition for determining whether a pilot reconfiguration is currently required.
  • the pre-configured reconfiguration condition may be a preset unbalanced threshold.
  • the uplink and downlink unbalance When the uplink and downlink unbalance reaches the preset unbalance threshold, it is determined that the uplink and downlink unbalance meets the preset reconfiguration condition, and the current adjacent cell link imbalance is serious, and the base station The uplink is subject to severe interference, affecting the user's experience. At this time, the RNC needs to perform pilot reconfiguration.
  • the RNC selects the cell base station with the current uplink load as the target base station that needs to perform pilot reconfiguration according to the uplink/downlink unbalance degree or the uplink capacity parameter.
  • the RNC After selecting the target base station, the RNC sends a reconfiguration request message to the target base station, reconfigures the Principal Common Pilot Channel (P-CPICH) power of the target base station, and enhances the primary common pilot channel power of the target base station.
  • P-CPICH Principal Common Pilot Channel
  • the reconfiguration request message sent by the RNC may carry the pilot offset value of the target base station, that is, the primary common pilot channel power enhancement amount of the target base station.
  • the pilot offset value may be obtained according to the uplink and downlink unbalance degree, may be pre-configured, or may be configured according to the current event measurement report parameter of the target base station, and may be flexibly set according to actual needs.
  • the target base station may reconfigure the power of the primary common pilot channel according to the pilot offset value carried in the reconfiguration request message, enhance the power of the primary common pilot channel of the target base station, and expand the target base station.
  • the downlink coverage is implemented to eliminate or reduce the uplink and downlink unbalanced areas of the neighboring cell base stations.
  • the target base station After the target base station reconfigures the primary common pilot channel power, it may feed back a reconfiguration response message to the RNC, and notify the RNC that the reconfiguration of the primary common pilot channel power has been completed.
  • the RNC may further adjust the cell personality offset of the neighboring cell base station of the service area where the UE is currently located according to the uplink and downlink unbalance degree. (Cell individual offset, CIO) parameters, and can also adjust the power of the primary common pilot channel power of the cell base station to reduce the interference caused by the uplink and downlink imbalance of the neighboring cell base station.
  • Cell individual offset, CIO Cell individual offset
  • the RNC can monitor uplink capacity parameters of multiple neighboring cell base stations;
  • the quantity parameter can obtain the uplink and downlink unbalance degree of the current multiple neighboring cell base stations; when the obtained uplink and downlink unbalance degree satisfies the preset reconfiguration condition, the uplink and downlink unbalance degree can be obtained according to the uplink and downlink unbalance degree Or the uplink capacity parameter selects the target base station to perform pilot reconfiguration. Due to the difference in the uplink load of the neighboring cell base stations, the uplink and downlink unbalanced areas may exist between the neighboring cells.
  • the uplink capacity parameters of the neighboring cell base stations are monitored in real time, and the neighboring cells can be obtained.
  • the RNC may select the base station with the smaller uplink load in the current neighboring cell base station as the target base station, and perform the main The reconfiguration of the common pilot channel power enhances the main common pilot channel power of the smaller base station with the uplink load, thereby expanding the downlink signal coverage of the smaller base station with the uplink load and reducing the uplink signal interference received by the smaller base station with the uplink load.
  • the unbalanced area is eliminated or reduced, so that the UE in the unbalanced area can normally obtain the service, and the impact on the user in the cell is reduced.
  • the embodiment of the present disclosure effectively reduces the signal interference received by the cell base station, reduces the impact on the user service in the cell, and improves the user experience.
  • the second embodiment of the public pilot adjustment method of the present disclosure provides a common pilot adjustment method.
  • S30 may further include S31-S32.
  • the RNC After obtaining the uplink and downlink unbalance of the current multiple neighboring cell base stations, when the uplink and downlink unbalance degree meets the preset reconfiguration condition, the RNC according to the uplink and downlink unbalance degree or the uplink capacity parameter And selecting a target base station from a plurality of cell base stations.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the noise increment of the A cell is RoTa
  • the noise increment of the B cell is RoTb
  • the load of the A cell is La
  • the load of the B cell is Lb.
  • the RNC selects a target base station from multiple cell base stations according to uplink and downlink unbalance.
  • DU RoTa-RoTb is taken.
  • the RNC may determine that the current uplink load of the base station B is small, and determine that the base station B is the target base station.
  • DU is a function of La and Lb
  • DU 1/(1-La)-1/(1-Lb) is taken.
  • the RNC may determine that the current uplink load of the base station B is small, and determine that the base station B is the target base station.
  • the RNC selects a target base station from a plurality of cell base stations according to an uplink capacity parameter.
  • the RNC increases the uplink load, and the uplink load is smaller, and the base station B is determined to be the target base station.
  • the RNC may determine that the uplink load of the current base station B is small, and determine that the base station B is the target base station.
  • the RNC can implement the determination of the target base station.
  • the primary common pilot channel power of the target base station is adjusted according to the uplink and downlink unbalance degree, and pilot reconfiguration is performed.
  • the RNC may adjust the primary common pilot channel power of the target base station according to the uplink and downlink imbalance to perform pilot reconfiguration.
  • the RNC sends a reconfiguration request message to the target base station, reconfigures the primary common pilot channel power of the target base station, and enhances the primary common pilot channel power of the target base station.
  • the reconfiguration request message sent by the RNC carries the pilot offset value of the target base station, that is, the primary common pilot channel power enhancement amount of the target base station.
  • the pilot offset value sent by the RNC is the absolute value of the current uplink and downlink unbalance.
  • the target base station After receiving the reconfiguration request message of the RNC, the target base station reconfigures the power of the primary common pilot channel according to the pilot offset value carried in the reconfiguration request message, which can enhance the power of the primary common pilot channel of the target base station, and can also be expanded.
  • the downlink coverage of the target base station can eliminate or reduce the uplink and downlink unbalanced areas of the neighboring cell base stations.
  • the target base station After the target base station reconfigures the primary common pilot channel power, it may feed back a reconfiguration response message to the RNC, and notify the RNC that the reconfiguration of the primary common pilot channel power has been completed.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the noise increase of the A cell is RoTa
  • the noise increase of the B cell is RoTb.
  • the uplink and downlink unbalance degree DU RoTa-RoTb.
  • the current A cell and the B cell are in an uplink and downlink balance state, that is, an uplink boundary and a downlink pilot boundary. Heavy Stack, the same coverage.
  • the downlink signal of the base station B can be detected.
  • the UE acquires the currently detected pilot channel quality parameter of the base station B.
  • the UE may report the currently detected base station B pilot channel quality parameter to the RNC.
  • the RNC determines that the UE can currently perform soft handover, and can control the UE to maintain communication with the base station B to obtain the service provided by the base station B.
  • the preset event measurement report parameter R1A is a 1A event measurement report parameter.
  • the uplink and downlink unbalanced degrees reach a preset unbalanced threshold, that is, greater than or equal to a preset unbalanced threshold. At this time, DU>0.
  • the enhanced UE uplink signal is a serious uplink interference signal for the base station B.
  • the base station B may be selected as the target base station according to the uplink and downlink unbalance degree or the uplink capacity parameter.
  • the RNC may send a reconfiguration request message to the base station B, and control the base station B to reconfigure the main common pilot channel power to enhance the pilot power.
  • the primary common pilot channel power configured by the base station A is Pa
  • the primary common pilot channel power configured by the base station B is Pb
  • the primary common pilot channel power configured by the base station A may be Pma
  • the primary common pilot channel power configured by the base station B may be Pmb.
  • the downlink pilot boundary of the base station B is moved to the A cell, the downlink coverage of the base station B is expanded, the original unbalanced area is covered, and the uplink range of the partial A cell is covered, so that the original unbalanced area can be converted into the soft handover area. And expand the scope of the soft handoff area.
  • the downlink signal of the base station B can be acquired in advance of the uplink boundary of the base station B, and the soft handover occurs, so that the UE in the unbalanced area can no longer cause the neighboring base station to be caused.
  • Uplink signal interference can also reduce uplink signal interference caused by some UEs in the A cell to neighboring base stations.
  • the base station B can feed back the reconfiguration response message to the RNC to complete the pilot reconfiguration.
  • the RNC sends a reconfiguration request message to the base station A, and controls the base station A to reconfigure the main common pilot channel power to enhance the pilot power.
  • the downlink pilot boundary of the base station A is moved to the B cell, the downlink coverage of the base station A is expanded, the original unbalanced area is converted into a soft handover area, and the range of the soft handover area can be expanded. Therefore, when the UE of the B cell moves to the A cell, the soft handover may occur in advance of the uplink boundary of the base station A, so that the UE in the unbalanced area may not cause uplink signal interference to the neighboring base station, and may also reduce the uplink signal.
  • the uplink signal interference caused by some UEs in the B cell to neighboring base stations.
  • the base station A can feed back the reconfiguration response message to the RNC to complete the pilot reconfiguration.
  • the uplink and downlink unbalance or uplink is performed according to the uplink and downlink unbalanced degree.
  • the capacity parameter selects a target base station from a plurality of cell base stations; then, adjusts the primary common pilot channel power of the target base station according to the uplink and downlink imbalance, and performs pilot reconfiguration.
  • the base station with the smaller uplink load may be selected as the target base station, and the reconfiguration is performed.
  • Common pilot channel power In this embodiment, the enhancement amount of the primary common pilot channel power of the target base station is equal to the absolute value of the uplink and downlink unbalance degree, and the original unbalanced area is converted into the soft handover area, and the range of the soft handover area can be expanded, and the original unbalanced area can be expanded.
  • the UE can obtain the service provided by the neighboring base station in advance, eliminates the signal interference to the neighboring base station, and improves the service experience of the user.
  • the third embodiment of the public pilot adjustment method of the present disclosure provides a common pilot adjustment method. Based on the embodiment shown in FIG. 2 above, before S32, S33-S34 is further included.
  • the RNC After acquiring the uplink and downlink unbalance and the target base station, the RNC evaluates whether the primary common pilot channel power headroom of the target base station satisfies a preset adjustment condition.
  • the RNC acquires a current downlink common common pilot channel transmit power margin of the target base station.
  • the RNC can determine, according to the current primary common pilot channel power margin of the target base station, whether the target base station can implement the absolute value of the primary common pilot channel power enhancement DU.
  • the target base station cannot currently increase the absolute value of the primary common pilot channel power enhancement DU, it is determined that the current common pilot channel power headroom of the current target base station does not satisfy the preset adjustment condition; when the target base station can currently implement the primary common
  • the pilot channel power enhances the absolute value of the DU it is determined that the current common pilot channel power headroom of the current target base station satisfies a preset adjustment condition.
  • the pilot enhancement amount is obtained according to the primary common pilot channel power margin of the target base station, and the adjustment unit is adjusted.
  • the primary common pilot channel power of the target base station is used for pilot reconfiguration.
  • the RNC If the primary common pilot channel power headroom of the current target base station does not satisfy the preset adjustment condition, that is, the target base station cannot currently increase the absolute value of the primary common pilot channel power enhancement DU, the RNC according to the primary common pilot of the target base station.
  • the channel power headroom acquires the pilot enhancement amount, adjusts the main common pilot channel power of the target base station according to the pilot enhancement amount, and performs pilot reconfiguration.
  • the RNC may acquire the pilot enhancement amount according to the primary common pilot channel power margin of the target base station.
  • the RNC can obtain the power remaining condition of the primary common pilot channel transmission signal of the current target base station according to the primary common pilot channel power margin of the current target base station.
  • the RNC sets the pilot enhancement amount E according to the primary common pilot channel power margin of the target base station, and the set pilot enhancement amount may be a preset ratio of the primary common pilot channel power margin of the target base station, or may be based on the target.
  • the primary common pilot channel power headroom of the base station, the uplink and downlink unbalance, and the preset event measurement report parameter R1A are set.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the noise increase of the A cell is RoTa
  • the noise increase of the B cell is RoTb.
  • the RNC configures the pilot enhancement amount E according to the primary common pilot channel power margin of the base station B, and DU>E>0. Then, the RNC may send a reconfiguration request message to the base station B, and control the base station B to reconfigure the main common pilot channel power to enhance the pilot power.
  • the reconfiguration request message may carry a pilot offset value E.
  • the primary common pilot channel power configured by the base station A is Pa
  • the primary common pilot channel power configured by the base station B is Pb.
  • the primary common pilot channel power configured by base station A is Pma
  • the primary common pilot channel power configured by base station B is Pmb.
  • the downlink coverage of the base station B is expanded to cover the original unbalanced area, so that the original imbalance can be converted into a soft handover area, thereby causing the UE of the A cell to be in the B direction.
  • soft handover may occur in the uplink boundary of the base station B in advance, so that the UE in the unbalanced area no longer causes interference to the adjacent base station.
  • the downlink coverage of the base station B is expanded to cover the original unbalanced area, so that the original unbalanced portion is converted into a soft handover area, thereby causing the UE of the A cell to be in the B direction.
  • soft handover may occur in the uplink boundary of the base station B in advance, so that the UE in the unbalanced area no longer causes interference to the adjacent base station.
  • the base station B can feed back the reconfiguration response message to the RNC to complete the pilot reconfiguration.
  • the RNC may send a reconfiguration request message to the base station A, and control the base station A to reconfigure the main common pilot channel power to enhance the pilot power.
  • the reconfiguration request message carries a pilot offset value E, -DU>E>0.
  • the downlink pilot boundary of the base station A is moved to the B cell, the downlink coverage of the base station A is expanded, and all or part of the original unbalanced area is converted into a soft handover area. Therefore, when the UE of the B cell moves to the A cell, the soft handover can be performed within the uplink boundary of the base station A in advance, so that the UE in the unbalanced area no longer causes interference to the adjacent base station.
  • the base station A can feed back the reconfiguration response message to the RNC to complete the pilot reconfiguration.
  • the RNC can be unbalanced according to the uplink and downlink.
  • the primary common pilot channel power of the target base station is adjusted to perform pilot reconfiguration.
  • the primary common pilot channel power headroom of the target base station before performing pilot reconfiguration, whether the primary common pilot channel power headroom of the target base station satisfies a preset adjustment condition according to the uplink and downlink unbalance degree; when the target base station is the public common If the pilot channel power headroom does not meet the preset adjustment condition, the pilot enhancement amount is obtained according to the primary common pilot channel power margin of the target base station, and the primary common pilot of the target base station is adjusted according to the pilot enhancement amount.
  • Channel power, performing pilot reconfiguration when the primary common pilot channel power headroom of the target base station satisfies a preset adjustment condition, the primary common pilot channel power of the target base station is adjusted according to the uplink and downlink unbalance degree, and the guidance is performed. Frequency rematch.
  • the pilot enhancement amount of the target base station can be flexibly configured, and the downlink pilot power margin of the target base station is utilized.
  • the range of the soft handover area is extended, and the signal interference of the neighboring cell is reduced, which brings benefits to the user and improves the user experience.
  • the fourth embodiment of the common pilot adjustment method of the present disclosure provides a common pilot adjustment method, which is based on the embodiment shown in FIG. 1, FIG. 2 or FIG. 3 (this embodiment is shown in FIG. 1
  • S30 S40-S60 may also be included.
  • the RNC can obtain the absolute value of the current uplink and downlink unbalance.
  • the RNC is pre-configured with an unbalanced threshold, which can be set to evaluate the link imbalance of the current neighboring cell base station.
  • the current absolute value of the uplink and downlink unbalance is less than the unbalance threshold, it may be determined that the absolute value of the uplink and downlink unbalance does not reach the preset unbalance threshold; if the current uplink and downlink If the absolute value of the unbalance is greater than or equal to the unbalanced threshold, it can be determined that the absolute value of the uplink and downlink unbalance reaches the preset unbalance threshold.
  • the RNC may determine the current uplink and downlink.
  • the link unbalance meets the preset reconfiguration conditions and requires pilot reconfiguration.
  • the RNC selects the target base station according to the uplink/downlink imbalance or the uplink capacity parameter, and performs pilot reconfiguration.
  • the RNC determines that the pilot reconfiguration is not currently required, and may not send the reconfiguration request message.
  • the absolute value of the uplink and downlink unbalance is obtained; and determining whether the absolute value of the uplink and downlink unbalance reaches the preset unbalance threshold If the absolute value of the uplink and downlink unbalance reaches the preset unbalance threshold, it is determined that the uplink and downlink unbalance meets the preset reconfiguration condition, according to the uplink and downlink unbalance or uplink capacity.
  • the parameter selects the target base station to perform pilot reconfiguration.
  • pilot reconfiguration is performed only when the uplink and downlink unbalance of the neighboring cell reaches the unbalance threshold, which can avoid frequent pilot reconfiguration and reduce the base station burden.
  • the stability of the signal coverage of each neighboring cell is enhanced, and the user experience is improved.
  • the fifth embodiment of the public pilot adjustment method of the present disclosure provides a common pilot adjustment method. Based on the foregoing embodiment shown in FIG. 4, after S40, S70 may be further included.
  • the RNC can determine whether the current uplink and downlink unbalance degree changes meet the variable threshold according to the current uplink and downlink unbalance and the record table.
  • the RNC is pre-configured with a record table, and the record table may record uplink and downlink unbalances when performing pilot reconfiguration.
  • the RNC controls the neighboring cell base station to perform pilot reconfiguration
  • the uplink and downlink unbalance degree during pilot reconfiguration can be recorded, and each uplink and downlink unbalance degree data record is recorded.
  • the record table In the record table.
  • the RNC monitors the uplink capacity parameter of the neighboring cell according to the preset frequency, and obtains the absolute value of the current uplink and downlink unbalance after acquiring the uplink and downlink unbalance.
  • the uplink and downlink unbalance data of the current neighbor re-matching of the neighboring cell is searched, and the uplink and downlink unbalance degree of the pilot re-matching closest to the current time is obtained, which may also be called For the last uplink and downlink unbalance.
  • the RNC can obtain the current amount of change of the uplink and downlink unbalance according to the absolute value of the current uplink and downlink unbalance and the absolute value of the previous uplink and downlink unbalance.
  • the current uplink and downlink unbalance is DU
  • the last uplink and downlink unbalance is DU1
  • the current uplink and downlink unbalance change is K
  • the RNC is based on the absolute value of the DU and the absolute value of the DU1. Get K.
  • K
  • the change amount K is less than or equal to the preset variable threshold value, it is determined that the current uplink and downlink unbalance degree change amount does not reach the preset variable threshold value; if the change amount K is greater than the preset variable threshold value Then, it is determined that the current amount of change of the uplink and downlink unbalance degree reaches a preset variable threshold value.
  • K can be the absolute value of the difference between the absolute value of the DU and the absolute value of the DU1.
  • the preset variable threshold value can be set to evaluate the current state of the uplink and downlink unbalance, and the value of the preset variable threshold can be flexibly set according to actual needs.
  • the RNC may further set a time interval threshold. According to the record table, if the time interval between the time of the last pilot reconfiguration and the current time exceeds the time interval threshold, the current uplink and downlink are directly determined. The road imbalance is up to a preset variable threshold; if the time between the last time of the pilot reconfiguration and the current time is less than the time interval threshold, the current uplink and downlink unbalance is changed.
  • the S60 may further include S61.
  • the current uplink and downlink unbalance degree change amount After obtaining the determination result of the current uplink and downlink unbalance degree change, if the current uplink and downlink unbalance degree change amount reaches a preset variable threshold value, it may determine that the current neighboring cell base station is up and down. The amount of change in the line link imbalance has exceeded expectations and pilot adjustments can be made.
  • the RNC determines whether the absolute value of the current uplink and downlink unbalance degree reaches a preset unbalanced threshold value.
  • the current uplink and downlink unbalance change reaches the preset variable threshold, and the absolute value of the current uplink and downlink unbalance reaches the preset unbalance threshold, the current uplink and downlink may be determined.
  • the road imbalance has already met the preset reconfiguration condition, and the RNC selects the target base station to perform pilot reconfiguration.
  • the current uplink and downlink may be determined.
  • the link imbalance does not satisfy the preset reconfiguration condition, and the RNC does not perform pilot reconfiguration.
  • the preset variable threshold value in the record table, the uplink and downlink unbalance degree of the previous pilot reconfiguration can be recorded; if the current uplink and downlink unbalance degree changes reach the preset variable threshold value, And if the absolute value of the current uplink and downlink unbalance reaches the preset unbalanced threshold, it can be determined when The front uplink and downlink unbalances satisfy the preset reconfiguration conditions, and the target base station is selected to perform pilot reconfiguration.
  • the pilot reconfiguration of the neighboring cell base station can be avoided frequently, the burden of the neighboring cell base station can be reduced, and multiple neighboring cells can be improved.
  • the stability of the signal coverage improves the user experience.
  • the first embodiment of the public pilot adjusting apparatus of the present disclosure provides a common pilot adjusting apparatus, and the common pilot adjusting apparatus includes a detecting module 10, a balancing module 20, and a reconfiguration module 30.
  • the monitoring module 10 is configured to monitor uplink capacity parameters of multiple neighboring cell base stations.
  • the embodiment of the present disclosure can dynamically adjust the common pilot channel power of the cell by monitoring the running status of the neighboring cell, and the user of the uplink and downlink unbalanced area is switched to the soft handover user, so that the unbalanced area user can enjoy the macro diversity.
  • the embodiment of the present disclosure monitors the operating state of the cell through the common pilot adjusting device, adjusts the common pilot of the cell, and performs link management.
  • the management of the cell site can also be performed by other devices, and can be flexibly set according to actual needs.
  • the common pilot adjustment device can be deployed in the RNC.
  • the monitoring module 10 can monitor the uplink capacity parameters of multiple neighboring cell base stations in real time, and obtain the running status of the current neighboring cell.
  • the uplink capacity parameter that is monitored by the monitoring module 10 includes multiple uplink capacity parameters that are currently running by multiple cell base stations.
  • the uplink capacity parameter includes an uplink load L (Load), a noise increase RoT (Rise over Thermal noise), and the like.
  • the primary common pilot channel power is the downlink primary common pilot channel power of the multiple cell base stations; the uplink load characterizes the uplink load conditions of the different cell base stations; the noise increment characterizes the uplink of the different cell base stations.
  • the noise floor is raised.
  • the balancing module 20 is configured to acquire an uplink and downlink unbalance degree of the multiple neighboring cell base stations according to the uplink capacity parameter.
  • the balancing module 20 After acquiring the uplink capacity parameter of the base station of the different cell, the balancing module 20 acquires the uplink and downlink unbalance of the neighboring cell base station according to the uplink capacity parameter.
  • the uplink and downlink unbalance of the neighboring cell is taken as a DU, and the imbalance of the current neighboring cell link is calculated according to the noise increment or the uplink load of the neighboring cell.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the monitoring module 10 monitors the link running status of the base station A and the base station B in real time, and obtains the base station A and the base.
  • the uplink capacity parameter of the station B, the obtained uplink capacity parameter may include a noise increment RoT, an uplink load L, and the like.
  • the balancing module 20 can calculate the uplink and downlink imbalance according to the noise increment.
  • the noise increment of the A cell is RoTa
  • the noise increment of the B cell is RoTb
  • the functional relationship between the uplink and downlink unbalance and RoTa and RoTb can be flexibly set.
  • the balancing module 20 may calculate an uplink and downlink imbalance according to an uplink load.
  • the functional relationship between the uplink and downlink unbalance and La and Lb can be flexibly set.
  • the balancing module 20 can obtain the uplink and downlink imbalance of the neighboring cell base stations.
  • the resulting imbalance can characterize the degree of uplink and downlink imbalance of the current neighboring cell base station.
  • the reconfiguration module 30 is configured to select a target base station to perform pilot reconfiguration according to the uplink and downlink unbalance degree or the uplink capacity parameter, if the uplink and downlink unbalance degree satisfies a preset reconfiguration condition. .
  • the reconfiguration module 30 may select the target base station according to the uplink and downlink unbalance or the uplink capacity parameter. Pilot reconfiguration.
  • the reconfiguration module 30 may be preconfigured with a reconfiguration condition, and is configured to determine whether a pilot reconfiguration is currently required.
  • the pre-configured reconfiguration condition may be a preset unbalanced threshold.
  • the uplink and downlink unbalance reaches the preset unbalance threshold, it can be determined that the uplink and downlink unbalance meets the preset reconfiguration condition, and the current adjacent cell link imbalance is serious.
  • the uplink is severely interfered, affecting the user's experience.
  • the reconfiguration module 30 needs to perform pilot reconfiguration.
  • the reconfiguration module 30 can select a cell base station with a smaller uplink load according to the uplink/downlink unbalance degree or the uplink capacity parameter, as the target base station that needs to perform pilot reconfiguration.
  • the reconfiguration module 30 After selecting the target base station, the reconfiguration module 30 sends a reconfiguration request message to the target base station, reconfigures the primary common pilot channel P-CPICH power of the target base station, and enhances the primary common pilot channel power of the target base station.
  • the reconfiguration request message sent by the reconfiguration module 30 may carry the guide of the target base station.
  • the frequency offset value that is, the primary common pilot channel power enhancement amount of the target base station.
  • the pilot offset value may be obtained according to the uplink and downlink unbalance degree, may be pre-configured, or may be configured according to the current uplink capacity parameter of the target base station, and may be flexibly set according to actual needs.
  • the target base station may reconfigure the main common pilot channel power according to the pilot offset value carried in the reconfiguration request message, and enhance the main common pilot channel power of the target base station.
  • the downlink coverage of the target base station is expanded, and the uplink and downlink unbalanced areas of the neighboring cell base stations are eliminated or reduced.
  • the reconfiguration response message may be fed back to the reconfiguration module 30 to notify the reconfiguration module 30 that the reconfiguration of the primary common pilot channel power has been completed.
  • the RNC may further adjust the CIO parameters of the neighboring cell base station of the service area where the UE is currently located according to the uplink and downlink unbalance degree, and simultaneously combine the cells.
  • the adjustment of the base common pilot channel power of the base station can reduce the interference caused by the uplink and downlink imbalance of the neighboring cell base station.
  • the monitoring module 10 can monitor the uplink capacity parameters of the multiple neighboring cell base stations; the balancing module 20 obtains the uplink and downlink unbalance degrees of the current multiple neighboring cell base stations according to the uplink capacity parameter; If the uplink and downlink unbalance meets the preset reconfiguration condition, the reconfiguration module 30 selects the target base station to perform pilot reconfiguration according to the uplink and downlink unbalance or the uplink capacity parameter. Due to the difference in the uplink load of the neighboring cell, the uplink and downlink unbalanced areas exist between the neighboring cells.
  • the uplink and downlink parameters of the neighboring cell are obtained by monitoring the uplink capacity parameters of the neighboring cell in real time.
  • the unbalanced degree when the uplink and downlink unbalance of the neighboring cell reaches the preset reconfiguration condition, the RNC selects the base station with the smaller uplink load in the current neighboring cell base station as the target base station, and performs the primary common pilot.
  • the reconfiguration of the channel power can enhance the main common pilot channel power of the base station with a smaller uplink load, thereby expanding the downlink signal coverage of the smaller base station with the uplink load, and reducing the uplink signal interference received by the smaller base station with the uplink load, eliminating or The unbalanced area is reduced, so that the UE in the unbalanced area can obtain the service normally, and the impact on the user in the cell is reduced.
  • the embodiment of the present disclosure can effectively reduce the signal interference received by the cell base station, reduce the impact on the user service in the cell, and improve the user experience.
  • the reconfiguration module 30 may further include:
  • the target unit 31 is configured to: if the uplink and downlink unbalance degree meets a preset reconfiguration condition, according to the uplink and downlink unbalance degree or the uplink capacity parameter, from the multiple cell base stations Medium Select the target base station.
  • the target unit 31 After obtaining the uplink and downlink unbalance of the current plurality of neighboring cell base stations, if the uplink and downlink unbalance degree satisfies the preset reconfiguration condition, the target unit 31 is configured according to the uplink and downlink unbalance degree or the uplink capacity.
  • the parameter selects a target base station from a plurality of cell base stations.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the noise increment of the A cell is RoTa
  • the noise increment of the B cell is RoTb
  • the load of the A cell is La
  • the load of the B cell is Lb.
  • the target unit 31 may select a target base station from multiple cell base stations according to an uplink and downlink imbalance.
  • the RNC may determine that the current uplink load of the base station B is small, and determine that the base station B is the target base station.
  • the target unit 31 may determine that the current uplink load of the base station B is small, and determine that the base station B is the target base station.
  • the target unit 31 selects a target base station from a plurality of cell base stations according to an uplink capacity parameter.
  • the target unit 31 When the target base station is selected according to the noise increment, if RoTa>RoTb, the target unit 31 has a larger uplink load and a larger uplink load, and can determine that the current uplink load of the base station B is small, and determine that the base station B is the target base station.
  • the target unit 31 may determine that the uplink load of the current base station B is small, and determine that the base station B is the target base station.
  • the target unit 31 implements the determination of the target base station.
  • the first reconfiguration unit 32 is configured to adjust a primary common pilot channel power of the target base station according to the uplink and downlink unbalance degree to perform pilot reconfiguration.
  • the first reconfiguration unit 32 may adjust the primary common pilot channel power of the target base station according to the uplink and downlink imbalance to perform pilot reconfiguration.
  • the first reconfiguration unit 32 may send a reconfiguration request message to the target base station, reconfigure the primary common pilot channel power of the target base station, and enhance the primary common pilot channel power of the target base station.
  • the reconfiguration request message sent by the first reconfiguration unit 32 may carry the pilot offset value of the target base station, that is, the primary common pilot channel power enhancement amount of the target base station.
  • the pilot offset value sent by the first reconfiguration unit 32 is an absolute value of the current uplink and downlink unbalance.
  • the target base station may reconfigure the main common pilot channel power according to the pilot offset value carried in the reconfiguration request message, and enhance the primary common pilot channel of the target base station. Power, expand the downlink coverage of the target base station, and eliminate or reduce the uplink and downlink unbalanced areas of the neighboring cell base stations.
  • the reconfiguration response message may be fed back to the first reconfiguration unit 32 to notify the first reconfiguration unit 32 that the reconfiguration of the primary common pilot channel power has been completed.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is a B cell, and the B cell is served by the base station B.
  • the noise increase of the A cell is RoTa
  • the noise increase of the B cell is RoTb.
  • the uplink and downlink unbalance degree DU RoTa-RoTb.
  • the current A cell and the B cell are in an uplink and downlink balance state, that is, an uplink boundary and a downlink pilot boundary. Overlap with the same coverage.
  • the downlink signal of the base station B can be detected.
  • the UE acquires the currently detected pilot channel quality parameter of the base station B.
  • the UE When the current pilot channel quality parameter meets the preset 1A event measurement report condition, the UE reports the currently detected base station B pilot channel quality parameter to the RNC.
  • the RNC determines that the UE can currently perform soft handover, and controls the UE to maintain communication with the base station B to obtain the service provided by the base station B.
  • the preset event measurement report parameter R1A is a 1A event measurement report parameter.
  • the uplink and downlink unbalanced degrees reach a preset unbalanced threshold, that is, greater than or equal to a preset unbalanced threshold. At this time, DU>0.
  • the coverage of the base station A is reduced, and the coverage of the base station B is expanded.
  • the downlink pilot boundary positions of base station A and base station B are unchanged.
  • the coverage between the base station A and the base station B is overlapped, and the range between the changed uplink boundary and the downlink pilot boundary is an unbalanced area.
  • the UE in the unbalanced area increases the uplink signal in order to obtain the service of the base station A. Transmit power.
  • the enhanced UE uplink signal is a serious uplink interference signal for the base station B.
  • the target unit The base station B is selected as the target base station according to the uplink and downlink unbalance or uplink capacity parameter.
  • the first reconfiguration unit 32 sends a reconfiguration request message to the base station B, and controls the base station B to reconfigure the main common pilot channel power to enhance the pilot power.
  • the primary common pilot channel power configured by the base station A is Pa, and the primary common pilot channel power configured by the base station B is Pb.
  • the primary common pilot channel power configured by base station A is Pma, and the primary common pilot channel power configured by base station B is Pmb.
  • the downlink pilot boundary of the base station B is moved to the A cell, the downlink coverage of the base station B is expanded, the original unbalanced area is covered, and the uplink range of the partial A cell is covered, so that the original unbalanced area can be converted into the soft handover area. And expand the scope of the soft handoff area.
  • the downlink signal of the base station B can be acquired in advance of the uplink boundary of the base station B, and the soft handover occurs, so that the UE in the unbalanced area does not cause the uplink signal to the neighboring base station. Interference can also reduce uplink signal interference caused by some UEs in the A cell to neighboring base stations.
  • the base station B can feed back the reconfiguration response message to the first reconfiguration unit 32 to complete the pilot reconfiguration.
  • the first reconfiguration unit 32 may send a reconfiguration request message to the base station A, and control the base station A to reconfigure the main common pilot channel power to enhance the pilot power.
  • the downlink pilot boundary of the base station A is moved to the B cell, the downlink coverage of the base station A is expanded, the original unbalanced area is converted into a soft handover area, and the range of the soft handover area can be expanded. Therefore, when the UE of the B cell moves to the A cell, the soft handover can occur in advance of the uplink boundary of the base station A, so that the UE in the unbalanced area no longer causes uplink signal interference to the neighboring base station, and can also reduce B.
  • the uplink signal interference caused by some UEs in the cell to neighboring base stations.
  • the base station A can feed back the reconfiguration response message to the first reconfiguration unit 32 to complete the pilot reconfiguration.
  • the target unit 31 after acquiring uplink and downlink unbalance degrees of multiple neighboring cell base stations, if the uplink and downlink unbalance degree satisfies a preset reconfiguration condition, the target unit 31 is unbalanced according to the uplink and downlink links.
  • the degree or uplink capacity parameter selects a target base station from a plurality of cell base stations; then, the first reconfiguration unit 32 adjusts the primary common pilot channel power of the target base station according to the uplink and downlink imbalance to perform pilot reconfiguration.
  • the base station with the smaller uplink load is selected as the target base station according to the uplink and downlink unbalance or the uplink capacity parameter, and the reconfiguration is performed.
  • Primary common pilot channel power In this embodiment, the enhancement amount of the primary common pilot channel power of the target base station is equal to the absolute value of the uplink and downlink unbalanced degree, and the original unbalanced area is converted into a soft handover area, and the range of the soft handover area can be expanded, and the original imbalance is
  • the UEs in the area can obtain the services provided by the neighboring base stations in advance, eliminate the signal interference to the neighboring base stations, and improve the service experience of the user.
  • the common pilot adjustment apparatus of the present disclosure provides a common pilot adjustment apparatus.
  • the reconfiguration module 30 may further include:
  • the evaluation unit 33 is configured to determine, according to the uplink and downlink unbalance, whether the primary common pilot channel power margin of the target base station satisfies a preset adjustment condition.
  • the evaluation unit 33 may evaluate whether the primary common pilot channel power headroom of the target base station satisfies a preset adjustment condition.
  • the evaluating unit 33 may obtain a current downlink common common channel channel transmit power margin of the target base station.
  • the evaluation unit 33 can determine, according to the current primary common pilot channel power margin of the target base station, whether the target base station can implement the absolute value of the primary common pilot channel power enhancement DU.
  • the evaluation unit 33 may determine that the primary common pilot channel power margin of the current target base station does not satisfy the preset adjustment condition; if the target base station can currently implement The primary common pilot channel power is increased by the absolute value of the DU, and the evaluation unit 33 determines that the primary common pilot channel power headroom of the current target base station satisfies a preset adjustment condition.
  • the second reconfiguration unit 34 is configured to: if the primary common pilot channel power headroom of the target base station does not meet the preset adjustment condition, obtain the pilot according to the primary common pilot channel power margin of the target base station. The amount of enhancement is adjusted, and the primary common pilot channel power of the target base station is adjusted to perform pilot reconfiguration.
  • the second weight The allocation unit 34 may obtain the pilot enhancement amount according to the primary common pilot channel power margin of the target base station, adjust the primary common pilot channel power of the target base station according to the pilot enhancement amount, and perform pilot reconfiguration.
  • the second reconfiguration unit 34 may obtain a pilot enhancement amount according to a primary common pilot channel power margin of the target base station.
  • the second reconfiguration unit 34 can obtain the power remaining condition of the primary common pilot channel transmission signal of the current target base station according to the primary common pilot channel power margin of the current target base station.
  • the second reconfiguration unit 34 may set a pilot enhancement amount E according to a primary common pilot channel power margin of the target base station, where the set pilot enhancement amount may be a preset of a primary common pilot channel power margin of the target base station.
  • the ratio may also be set according to the primary common pilot channel power margin of the target base station, the uplink and downlink unbalance, and the preset event measurement report parameter R1A.
  • the downlink coverage of the target base station is expanded to cover the original unbalanced area, and the original unbalanced area is converted into a soft handover area.
  • the current two neighboring cell base stations are taken as an example for illustration.
  • the current UE is located in the A cell, and the service provided by the base station A is obtained.
  • the cell adjacent to the A cell is the B cell, and the B cell is served by the base station B.
  • the noise increase of the A cell is RoTa
  • the noise increase of the B cell is RoTb.
  • the second reconfiguration unit 34 may configure the pilot enhancement amount E according to the primary common pilot channel power margin of the base station B, and DU>E>0.
  • the second reconfiguration unit 34 may send a reconfiguration request message to the base station B, and control the base station B to reconfigure the main common pilot channel power to enhance the pilot power.
  • the reconfiguration request message may carry a pilot offset value E.
  • the primary common pilot channel power configured by the base station A is Pa, and the primary common pilot channel power configured by the base station B is Pb.
  • the primary common pilot channel power configured by base station A is Pma, and the primary common pilot channel power configured by base station B is Pmb.
  • the downlink coverage of the base station B is expanded to cover the original unbalanced area, so that the original imbalance is converted into a soft handover area, thereby making the A-cell
  • the soft handover may occur in the uplink boundary of the base station B in advance, so that the UE in the unbalanced area no longer causes interference to the adjacent base station.
  • the second reconfiguration unit 34 is configured with E ⁇ DU-R1A
  • the downlink coverage of the base station B is expanded to cover the original unbalanced area, so that the original unbalanced portion is converted into a soft handover area, thereby making the A-cell
  • the UE may perform soft handover in the uplink boundary of the base station B in advance, so that the UE in the unbalanced area no longer causes interference to the neighboring base station.
  • the base station B feeds back the reconfiguration response message to the second reconfiguration unit 34 to complete the pilot reconfiguration.
  • the second reconfiguration unit 34 sends a reconfiguration request message to the base station A, and controls the base station A to reconfigure the main common pilot channel power to enhance the pilot power.
  • the request message carries a pilot offset value E, -DU>E>0.
  • the downlink pilot boundary of the base station A is moved to the B cell, the downlink coverage of the base station A is expanded, and all or part of the original unbalanced area is converted into a soft handover area. Therefore, when the UE of the B cell moves to the A cell, the soft handover can be performed within the uplink boundary of the base station A in advance, so that the UE in the unbalanced area no longer causes interference to the adjacent base station.
  • the base station A can feed back the reconfiguration response message to the second reconfiguration unit 34 to complete the pilot reconfiguration.
  • the first reconfiguration unit 32 may be further configured to: if the primary common pilot channel power headroom of the target base station meets a preset adjustment condition, adjust the target base station according to the uplink and downlink unbalance degree The primary common pilot channel power is used for pilot reconfiguration.
  • the first weight The allocation unit 32 can adjust the primary common pilot channel power of the target base station according to the uplink and downlink unbalance degree to perform pilot reconfiguration.
  • the evaluation unit 33 may determine, according to the uplink and downlink unbalance, whether the primary common pilot channel power headroom of the target base station meets a preset adjustment condition; if the target base station The primary common pilot channel power headroom does not satisfy the preset adjustment condition, and the second reconfiguration unit 34 may obtain the pilot enhancement amount according to the primary common pilot channel power margin of the target base station, and adjust the target according to the pilot enhancement amount.
  • the primary common pilot channel power of the base station is used for pilot reconfiguration; if the primary common pilot channel power headroom of the target base station satisfies a preset adjustment condition, the first reconfiguration unit 32 may be based on the uplink and downlink unbalance degree.
  • the primary common pilot channel power of the target base station is adjusted to perform pilot reconfiguration.
  • the pilot enhancement amount of the target base station can be flexibly configured, and the downlink pilot power margin of the target base station is utilized.
  • the range of the soft handover area can be extended, the signal interference of the neighboring cell is reduced, the revenue is brought to the user, and the user experience is improved.
  • the fourth embodiment of the common pilot adjusting apparatus of the present disclosure provides a common pilot adjusting apparatus, based on the foregoing embodiment shown in FIG. 6, FIG. 7, or FIG. 8 (this embodiment uses FIG. 6
  • the common pilot adjustment apparatus may further include:
  • the absolute value module 40 is configured to obtain an absolute value of the uplink and downlink unbalance.
  • the absolute value module 40 can obtain the absolute value of the current uplink and downlink unbalance.
  • the first determining module 50 is configured to determine whether the absolute value of the uplink and downlink unbalance degree reaches a preset unbalanced threshold value.
  • the first judging module 50 is pre-configured with an unbalanced threshold value, and is set to evaluate the link imbalance degree of the current neighboring cell base station.
  • the current absolute value of the uplink and downlink unbalance is less than the unbalance threshold, it may be determined that the absolute value of the uplink and downlink unbalance does not reach the preset unbalance threshold; if the current uplink and downlink If the absolute value of the unbalance is greater than or equal to the unbalanced threshold, it can be determined that the absolute value of the uplink and downlink unbalance reaches the preset unbalance threshold.
  • the first determination module 50 can obtain the determination result.
  • the condition module 60 is configured to determine that the uplink and downlink unbalance meets a preset reconfiguration condition if the absolute value of the uplink and downlink unbalance reaches a preset unbalance threshold.
  • the condition module 60 may determine the current The uplink and downlink unbalances satisfy the preset reconfiguration conditions, and pilot reconfiguration is required.
  • the reconfiguration module 30 may select a target base station according to an uplink/downlink imbalance or the uplink capacity parameter to perform pilot reconfiguration.
  • the condition module 60 determines that the pilot reconfiguration is not currently required, and the reconfiguration module 30 may not transmit the reconfiguration request message.
  • the absolute value module 40 may acquire the absolute value of the uplink and downlink unbalance; then, the first determining module 50 may determine the uplink and downlink unbalance. Whether the absolute value of the uplink and downlink unbalanced threshold reaches the preset unbalanced threshold value, the condition module 60 can determine that the uplink and downlink unbalance degree meets the pre-determination
  • the reconfiguration module 30 may select the target base station to perform pilot reconfiguration according to the uplink and downlink unbalance or uplink capacity parameters.
  • the pilot reconfiguration is performed when the uplink and downlink unbalance of the neighboring cell reaches the unbalanced threshold, which can avoid frequent pilot reconfiguration and reduce the base station burden. Enhance the stability of signal coverage of neighboring cells and improve user experience.
  • the fifth embodiment of the common pilot adjustment apparatus of the present disclosure provides a common pilot adjustment apparatus.
  • the common pilot adjustment apparatus may further include:
  • the second determining module 70 is configured to determine, according to the absolute value of the uplink and downlink unbalance and the pre-configured record table, whether the change amount of the uplink and downlink unbalance degree reaches a preset variable threshold value.
  • the record table may record uplink and downlink unbalances during successive pilot reconfigurations.
  • the second determining module 70 may determine whether the current uplink and downlink unbalance degree changes meet the variable threshold according to the current uplink and downlink unbalance and the record table.
  • the second determining module 70 may be pre-configured with a recording table, where the recording table may record the uplink and downlink unbalances when performing the pilot reconfiguration.
  • the uplink and downlink unbalance degree during the pilot reconfiguration can be recorded, and each uplink and downlink link is unbalanced.
  • the degree data is recorded in the record table.
  • the monitoring module 10 can monitor the uplink capacity parameter of the neighboring cell according to the preset frequency. After the balancing module 20 acquires the uplink and downlink imbalance, the absolute value module 40 can obtain the absolute value of the current uplink and downlink unbalance.
  • the second judging module 70 may search for uplink and downlink unbalance data of the current neighbor re-matching of the neighboring cell according to the pre-configured record table, and acquire the uplink and downlink of the pilot re-matching closest to the current time.
  • the road imbalance is also called the last uplink and downlink unbalance.
  • the second judging module 70 can obtain the current uplink and downlink unbalance degree change amount according to the absolute value of the current uplink and downlink unbalance degree and the absolute value of the last uplink and downlink unbalance degree.
  • the current uplink and downlink unbalance is DU
  • the last uplink and downlink unbalance is DU1
  • the current uplink and downlink unbalance change is K
  • the RNC can be based on the absolute value of the DU and the absolute of the DU1. The value gets K.
  • K
  • the change amount K is less than or equal to the preset variable threshold value, it may be determined that the current uplink and downlink unbalance degree change amount does not reach the preset variable threshold value; if the change amount K is greater than the preset variable threshold The value can be used to determine that the current amount of change in the uplink and downlink imbalance reaches a preset variable threshold.
  • K can be the absolute value of the difference between the absolute value of the DU and the absolute value of the DU1.
  • the preset variable threshold value can be used to evaluate the current state of the uplink and downlink unbalance, and the value of the preset variable threshold can be flexibly set according to actual needs.
  • the second determining module 70 may further set a time interval threshold according to the record table, if the time interval between the last time the pilot reconfiguration is performed and the current time exceeds the time interval. If the threshold is exceeded, the current uplink and downlink unbalance can be directly determined to reach the preset variable threshold. If the time between the last time of the pilot reconfiguration and the current time is less than the interval threshold, the current uplink and downlink are obtained. The amount of change in link imbalance is determined.
  • the second judging module 70 can obtain a determination result of the amount of change in the current uplink and downlink unbalance.
  • condition module 60 may be further configured to: if the amount of change of the uplink and downlink unbalance degree reaches a preset variable threshold value, and the absolute value of the uplink and downlink unbalance degree reaches a pre-predetermined value If the unbalanced threshold is set, it may be determined that the uplink and downlink unbalance meets a preset reconfiguration condition.
  • the condition module 60 may determine the current neighboring cell.
  • the amount of uplink and downlink unbalance changes of the base station has exceeded expectations, and pilot adjustment can be performed.
  • condition module 60 can determine whether the absolute value of the current uplink and downlink unbalance degree reaches a preset unbalanced threshold value.
  • condition module 60 may determine the current The uplink and downlink unbalance has already met the preset reconfiguration condition, and the reconfiguration module 30 can select the target base station to perform pilot reconfiguration.
  • condition module 60 may determine The current uplink and downlink unbalance does not satisfy the preset reconfiguration condition, and the reconfiguration module 30 does not perform pilot reconfiguration.
  • the second determining module 70 determines the current uplink and downlink unbalance according to the absolute value of the current uplink and downlink unbalance and the pre-configured record table. Whether the amount of change reaches the preset variable threshold, and the record table records the uplink and downlink unbalances during the previous pilot reconfiguration; if the current uplink and downlink unbalance changes to the preset variable threshold The limit value, and the absolute value of the current uplink and downlink unbalance degree reaches a preset unbalanced threshold value, the condition module 60 determines that the current uplink and downlink unbalance degree satisfies a preset reconfiguration condition, and the reconfiguration module 30 The target base station is selected for pilot reconfiguration.
  • the current uplink and downlink unbalanced absolute value and the change amount are simultaneously evaluated to avoid frequent pilot reconfiguration of the neighboring cell base station, and the burden of the neighboring cell base station is reduced, and the signal coverage of each adjacent cell is reduced. Stability improves the user experience.
  • an embodiment of the present disclosure further provides a non-transitory computer readable storage medium storing computer executable instructions for performing any one of the above common pilot adjustments. method.
  • the electronic device includes:
  • a processor 110 and a memory 120; a communication interface 130 and a bus 140 may also be included.
  • the processor 110, the memory 120, and the communication interface 130 can complete communication with each other through the bus 140.
  • Communication interface 130 can be used for information transmission.
  • the processor 110 can call the logic instructions in the memory 120 to perform the common pilot adjustment method of the above embodiment.
  • the logic instructions in the memory 120 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • a medium that can store program code, or a transitory storage medium including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the program when executed, may include a flow of an embodiment of the method described above, wherein the computer readable storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory. (RAM), etc.
  • the computer readable storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory. (RAM), etc.
  • the embodiment of the present disclosure discloses a common pilot adjustment method and apparatus.
  • the signal interference received by the neighboring cell base station can be effectively reduced, the impact on the user service in the cell is reduced, and the user experience is improved.

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Abstract

一种公共导频调整方法和装置，该方法包括：监测多个相邻小区基站的上行容量参数；根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度；若所述上下行链路不平衡度满足预设的重配条件，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。本公开还公开了一种公共导频调整装置。在相邻小区基站的上行负载存在差异时，本公开有效降低了相邻小区基站受到的信号干扰，并且降低了对小区中用户服务的影响，提升了用户体验。

Description

公共导频调整方法和装置 技术领域
本公开涉及通信技术领域，例如涉及一种公共导频调整方法和装置。
背景技术
在通用移动通信系统(Universal Mobile Telecommunications System，UMTS)网络中，相邻小区由于上行负载的差异，可能导致相邻小区之间产生上下行链路不平衡的区域。
例如，两个基站：基站A和基站B，基站A覆盖的A小区和基站B覆盖的B小区相邻，有部分区域重叠。由于通信网络的自干扰特性，系统的容量有限，若基站A的上行负载较大，基站B的上行负载较小，则会产生小区呼吸效应，导致A小区的上行覆盖范围会缩小，B小区的上行覆盖范围会扩大，产生上下行链路不平衡的区域。此时，若用户设备(User Equipment，UE)位于上下行链路不平衡区域，则可能会产生语音掉话、分组交换(packet switching，PS)掉话、上下行数据业务流量低等情况。同时，UE为了获取服务会增强发射的上行信号，增强的上行信号则会对B小区造成严重的上行干扰，可能影响上下行链路平衡区域用户的正常使用。
若相邻小区的上行负载相差较大，则相邻小区之间存在的上下行链路不平衡区域较大；若相邻小区的上行负载相差较小，则相邻小区之间存在的上下行链路不平衡区域较小。而上下行链路不平衡区域的大小变化则可能会导致小区的上行干扰变化。
相邻小区之间的上行负载差异而导致的上下行链路不平衡，可能会干扰相邻小区基站的信号，还可能会影响UE的服务体验。
发明内容
本公开提供一种公共导频调整方法和装置，可以解决相邻小区上行负载差异而导致的相邻小区基站信号干扰的技术问题。
为实现上述目的，本公开实施例提供一种公共导频调整方法，可以包括：
监测多个相邻小区基站的上行容量参数；
根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡 度；以及
当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
可选地，所述当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配的步骤可以包括：
当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中选择目标基站；以及
根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
可选地，所述根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配的步骤之前，还可以包括：
根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件；
当所述目标基站的主公共导频信道功率余量不满足预设的调整条件时，则根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配；以及
当所述目标基站的主公共导频信道功率余量满足预设的调整条件时，则根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
可选地，当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配的步骤之前，还可以包括：
获取所述上下行链路不平衡度的绝对值；
判断所述上下行链路不平衡度的绝对值是否达到预设的不平衡门限值；
当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则判定所述上下行链路不平衡度满足预设的重配条件；以及
根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
可选地，所述获取所述上下行链路不平衡度的绝对值的步骤之后，还可以包括：
根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上 下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表记录了历次导频重配时的上下行链路不平衡度；
当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件的步骤包括：
当所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
本公开实施例还提供一种公共导频调整装置，可以包括：
监测模块，设置为监测多个相邻小区基站的上行容量参数；
平衡模块，设置为根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度；以及
重配模块，设置为当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
可选地，所述重配模块可以包括：
目标单元，设置为当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中选择目标基站；
第一重配单元，设置为根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
可选地，所述重配模块还可以包括：
评估单元，设置为根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件；
第二重配单元，设置为当所述目标基站的主公共导频信道功率余量不满足预设的调整条件，则根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配；
所述第一重配单元，还设置为当所述目标基站的主公共导频信道功率余量满足预设的调整条件，则根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
可选地，还可以包括：
绝对值模块，设置为获取所述上下行链路不平衡度的绝对值；
第一判断模块，设置为判断所述上下行链路不平衡度的绝对值是否达到预 设的不平衡门限值；
条件模块，设置为当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
可选地，还可以包括：
第二判断模块，设置为根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表记录了历次导频重配时的上下行链路不平衡度；
所述条件模块，还可以设置为当所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
本公开实施例还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任意一种公共导频调整方法。
本公开实施例还提供一种电子设备，该电子设备包括一个或多个处理器、存储器以及一个或多个程序，所述一个或多个程序存储在存储器中，当被一个或多个处理器执行时，执行上述任意一种公共导频调整方法。
本公开实施例还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任意一种公共导频调整方法。
本公开实施例提出的一种公共导频调整方法和装置，通过实时监测相邻小区基站的上行容量参数，得到相邻小区的上下行链路不平衡度，在相邻小区的上下行链路不平衡度达到预设的重配条件时，选取当前相邻的小区基站中上行负载较小的基站作为目标基站，进行主公共导频信道功率的重配，可以实现增强上行负载较小基站的主公共导频信道功率，从而扩大该上行负载较小基站的下行信号覆盖范围，降低该上行负载较小基站受到的上行信号干扰，消除或者减少不平衡区域，使不平衡区域中的用户设备能够正常获取服务，降低了小区中用户受到的影响。
在相邻小区基站的上行负载存在差异时，本公开实施例还可以降低相邻小区基站受到的信号干扰，降低对小区中用户服务的影响，提升了用户体验。
附图说明
图1为本公开公共导频调整方法第一实施例的流程示意图；
图2为本公开公共导频调整方法第二实施例的流程示意图；
图3为本公开公共导频调整方法第三实施例的流程示意图；
图4为本公开公共导频调整方法第四实施例的流程示意图；
图5为本公开公共导频调整方法第五实施例的流程示意图；
图6为本公开公共导频调整装置第一实施例的功能模块示意图；
图7为本公开公共导频调整装置第二实施例的功能模块示意图；
图8为本公开公共导频调整装置第三实施例的功能模块示意图；
图9为本公开公共导频调整装置第四实施例的功能模块示意图；
图10为本公开公共导频调整装置第五实施例的功能模块示意图；
图11为本公开实施例中一种相邻小区基站链路平衡场景示意图；
图12为本公开实施例中一种相邻小区基站链路不平衡场景示意图；
图13为本公开实施例中一种相邻小区基站链路不平衡应用场景示意图；
图14为本公开实施例中一种相邻小区基站链路不平衡应用场景示意图；
图15为本公开实施例中一种相邻小区基站链路不平衡应用场景示意图；以及
图16为本公开实施例提供的一种电子设备的硬件结构示意图。
具体实施方式
应当理解，此处所描述的可选实施例仅仅用以解释本公开，并不用于限定本公开。在不冲突的情况下，以下实施例和实施例中的特征可以相互组合。
由于在相邻小区基站的上行负载存在差异时，可能会出现相邻小区的上下行链路不平衡，导致干扰相邻小区基站的信号，影响用户设备的服务体验。
本公开提供一种解决方案，可以增强相邻小区基站中上行负载较小基站的主公共导频信道功率，从而可以扩大该上行负载较小基站的下行信号覆盖范围，将不平衡区域转换为软切换区，降低该上行负载较小基站受到的上行信号干扰，使原不平衡区域中的用户设备能够正常获取服务，还可以降低小区中用户受到的影响。
参照图1，本公开实施例公共导频调整方法第一实施例提供一种公共导频调整方法，包括S10-S30。
在S10中、监测多个相邻小区基站的上行容量参数。
本公开实施例通过监测相邻小区的运行状态，动态的调整小区的公共导频信道功率，上下行链路不平衡区域的用户切换为软切换用户，可以使得不平衡区域用户享受到宏分集合并带来的上行收益。
本公开实施例可以通过无线网络控制器(Radio Network Controller，RNC)监控小区运行状态，调整小区的公共导频，进行链路管理。此外还可以通过其他装置进行小区基站的管理，可根据实际需要灵活设置。
可选地，RNC实时监测多个相邻小区基站的上行容量参数，获取当前相邻小区的运行状态。
RNC监测得到的上行容量参数包括多个小区基站当前运行的各项上行容量参数，例如上行负载L(Load)、噪声增量RoT(Rise over Thermal noise)等。
在本实施例中，上行负载表征了不同小区基站的上行链路负载情况；噪声增量表征了不同小区基站的上行底噪抬升情况。
在S20中、根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度。
在获取多个小区基站的上行容量参数后，RNC根据上行容量参数获取相邻小区基站的上下行链路不平衡度。
可选地，获取相邻小区的上下行链路不平衡度为DU，根据相邻小区的噪声增量或上行负载计算当前相邻小区链路的不平衡度。
示例性地，以当前共有2个相邻小区基站进行举例说明。
取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。
则RNC实时监测基站A和基站B的链路运行状态，获取基站A和基站B的上行容量参数，得到的上行容量参数可以包括噪声增量RoT和上行负载L等。
在获取上行容量参数后，作为一种可选的实施方式，根据噪声增量计算上下行链路不平衡度。可选地，可以取A小区的噪声增量为RoTa，B小区的噪声增量为RoTb，则相邻小区上下行链路不平衡度DU为RoTa和RoTb的函数，也即DU＝f(RoTa，RoTb)。
上下行链路不平衡度与RoTa、RoTb的函数关系可灵活设置。
作为另一种可选的实施方式，根据上行负载计算上下行链路不平衡度。可选地，可以取A小区的负载为La，B小区的负载为Lb，则DU为La和Lb的函数，也即DU＝f(La，Lb)。
上下行链路不平衡度与La、Lb的函数关系可灵活设置。
由此，得到相邻小区基站的上下行链路不平衡度。得到的不平衡度表征了当前相邻小区基站的上下行链路不平衡程度。
在S30中、当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
在获取上下行链路不平衡度后，若上下行链路不平衡度满足预设的重配条件，则RNC根据上下行链路不平衡度或上行容量参数，选择目标基站进行导频重配。
可选地，作为一种可选的实施方式，RNC预先配置有重配条件，用于判断当前是否需要进行导频重配。预先配置的重配条件可以是预设的不平衡门限值。
当上下行链路不平衡度达到预设的不平衡门限值时，则判定上下行链路不平衡度满足预设的重配条件，当前相邻的小区链路不平衡较为严重，基站的上行链路受到严重干扰，影响用户的体验，此时，RNC需要进行导频重配。
然后，RNC根据上下行链路不平衡度或者上行容量参数，选择当前上行负载较小的小区基站，作为需要进行导频重配的目标基站。
在选择目标基站后，RNC向目标基站发送重配请求消息，重配目标基站的主公共导频信道(Principal Common Pilot Channel，P-CPICH)功率，增强目标基站的主公共导频信道功率。
需要说明的是，RNC发送的重配请求消息可以携带有目标基站的导频偏置值，也即目标基站的主公共导频信道功率增强量。导频偏置值可以是根据上下行链路不平衡度获取的，也可以是预先配置的，还可以是根据目标基站的当前事件测量报告参数进行配置的，可根据实际需要灵活设置。
目标基站在收到RNC的重配请求消息后，可以根据重配请求消息携带的导频偏置值，重配主公共导频信道功率，增强目标基站的主公共导频信道功率，扩大目标基站的下行覆盖范围，从而实现消除或减少相邻小区基站上下行链路不平衡区域。
目标基站重配主公共导频信道功率后，可以向RNC反馈重配响应消息，通知RNC当前已完成主公共导频信道功率的重配。
作为另一种可选的实施方式，在获取上下行链路不平衡度后，RNC还可以根据上下行链路不平衡度，调整UE当前所在的服务区的相邻小区基站的小区个性偏移(Cell individual offset，CIO)参数，同时还可以结合小区基站主公共导频信道功率的调整，降低相邻小区基站上下行链路不平衡造成的干扰。
在本实施例中，RNC可监测多个相邻小区基站的上行容量参数；根据上行容 量参数，可获取当前多个相邻小区基站的上下行链路不平衡度；当得到的上下行链路不平衡度满足预设的重配条件时，则可以根据上下行链路不平衡度或上行容量参数选择目标基站进行导频重配。由于相邻小区基站上行负载的差异，可能会导致相邻小区之间存在上下行链路不平衡区域，而本实施例通过实时监测相邻小区基站的上行容量参数，可得到相邻小区的上下行链路不平衡度，在相邻小区的上下行链路不平衡度达到预设的重配条件时，RNC可以选取当前相邻的小区基站中上行负载较小的基站作为目标基站，进行主公共导频信道功率的重配，增强上行负载较小基站的主公共导频信道功率，从而可以扩大该上行负载较小基站的下行信号覆盖范围，降低该上行负载较小基站受到的上行信号干扰，消除或者减少不平衡区域，使不平衡区域中的UE能够正常获取服务，降低了小区中用户受到的影响。在相邻小区基站的上行负载存在差异时，本公开实施例有效降低了小区基站受到的信号干扰，降低对小区中用户服务的影响，提升了用户体验。
可选地，参照图2，本公开公共导频调整方法第二实施例提供一种公共导频调整方法，基于上述图1所示的实施例，S30还可以包括S31-S32。
在S31中、当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中选择目标基站。
在获取当前多个相邻小区基站的上下行链路不平衡度后，当上下行链路不平衡度满足预设的重配条件时，则RNC根据上下行链路不平衡度或上行容量参数，从多个小区基站中选择目标基站。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb，A小区的负载为La，B小区的负载为Lb。
可选地，作为一种可选实施方式，RNC根据上下行链路不平衡度从多个小区基站中选择目标基站。
当DU为RoTa和RoTb的函数时，可选地，本实施例中取DU＝RoTa-RoTb。
若DU＞0，则RNC可以判定当前基站B的上行负载小，确定基站B为目标基站。
当DU为La和Lb的函数时，可选地，本实施例中取DU＝1/(1-La)-1/(1-Lb)。
若DU＞0，则RNC可以判定当前基站B的上行负载小，确定基站B为目标基站。
作为另一种可选实施方式，RNC根据上行容量参数从多个小区基站中选择目标基站。
根据噪声增量选择目标基站时，若RoTa＞RoTb，则RNC根据噪声增量越大，上行负载越大，可以判定当前基站B的上行负载小，确定基站B为目标基站。
根据上行负载选择目标基站时，若La＞Lb，则RNC可以判定当前基站B的上行负载小，确定基站B为目标基站。
由此，RNC可以实现目标基站的确定。
在S32中、根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
在选择目标基站后，RNC可以根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
可选地，作为一种可选实施方式，RNC向目标基站发送重配请求消息，重配目标基站的主公共导频信道功率，增强目标基站的主公共导频信道功率。
需要说明的是，RNC发送的重配请求消息中携带有目标基站的导频偏置值，也即目标基站的主公共导频信道功率增强量。
RNC发送的导频偏置值为当前上下行链路不平衡度的绝对值。
目标基站在收到RNC的重配请求消息后，根据重配请求消息携带的导频偏置值，重配主公共导频信道功率，可以增强目标基站的主公共导频信道功率，还可以扩大目标基站的下行覆盖范围，可以实现消除或减少相邻小区基站上下行链路不平衡区域。
目标基站重配主公共导频信道功率后，可以向RNC反馈重配响应消息，通知RNC当前已完成主公共导频信道功率的重配。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb。
在本实施例中，可选地，上下行链路不平衡度DU＝RoTa-RoTb。
参照图11，当上下行链路不平衡度未达到预设的不平衡门限值时，则当前A小区和B小区之间处于上下行链路平衡状态，也即上行边界与下行导频边界重 叠，覆盖范围相同。
当UE在向B小区移动过程中，进入基站A和基站B的共同覆盖范围时，能够检测到基站B的下行信号。UE获取当前检测到的基站B的导频信道质量参数。
在当前的导频信道质量参数满足预先设置的1A事件测量报告条件时，UE可以向RNC上报当前检测到的基站B导频信道质量参数。RNC判定UE当前可以进行软切换，可以控制UE与基站B保持通信，获取基站B提供的服务。需要说明的是，本公开实施例中，预先设置的事件测量报告参数R1A为1A事件测量报告参数。
参照图12，若基站A的上行负载大于基站B的上行负载，上下行链路不平衡度达到预设的不平衡门限值，也即大于或等于预设的不平衡门限值。此时，DU＞0。
则由于呼吸效应，基站A的覆盖范围缩小，基站B的覆盖范围扩大。但是，基站A与基站B的下行导频边界位置不变。则可能会导致基站A与基站B重叠覆盖范围中，变化后的上行边界与下行导频边界之间的范围为不平衡区，在不平衡区内的UE为了获取基站A的服务，增大上行信号发射功率。增强后的UE上行信号对于基站B为严重的上行干扰信号。
此时，若RNC判定当前上下行链路不平衡度满足预设的重配条件，则可以根据上下行链路不平衡度或上行容量参数选择基站B为目标基站。
然后，RNC可以向基站B发送重配请求消息，控制基站B重配主公共导频信道功率，增强导频功率。重配请求消息可以携带有导频偏置值Delta，可选地，Delta＝DU。
可选地，取基站A配置的主公共导频信道功率为Pa，基站B配置的主公共导频信道功率为Pb。初始化时，基站A配置的主公共导频信道功率可以为Pma，基站B配置的主公共导频信道功率可以为Pmb。
参照图13，可选地，基站B在收到RNC的重配请求消息后，重配主公共导频信道功率Pb＝Pmb+Delta，也即基站B的导频增强量Delta＝DU。使得基站B的下行导频边界向A小区移动，扩大基站B的下行覆盖范围，覆盖了原不平衡区并且覆盖了部分A小区的上行范围，可以实现将原不平衡区转换为软切换区，并且扩大了软切换区的范围。由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界外获取基站B的下行信号，发生软切换，不仅可以使得不平衡区的UE不再对相邻基站造成上行信号干扰，同时还可以降低A小区中的部分UE对相邻基站造成的上行信号干扰。
然后，基站B可以向RNC反馈重配响应消息，完成导频重配。
同理，若基站A的负载小于基站B，则DU＜0，则RNC向基站A发送重配请求消息，控制基站A重配主公共导频信道功率，增强导频功率。重配请求消息可以携带有导频偏置值Delta，Delta＝-DU。
基站A在收到RNC的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+Delta。使得基站A的下行导频边界向B小区移动，扩大基站A的下行覆盖范围，将原不平衡区转换为软切换区，并且可以扩大软切换区的范围。由此，使得B小区的UE在向A小区移动时，可以提前在基站A的上行边界以外发生软切换，可以使得不平衡区的UE不再对相邻基站造成上行信号干扰，同时还可以降低B小区中的部分UE对相邻基站造成的上行信号干扰。
然后，基站A可以向RNC反馈重配响应消息，完成导频重配。
在本实施例中，获取多个相邻小区基站的上下行链路不平衡度后，当上下行链路不平衡度满足预设的重配条件，则根据上下行链路不平衡度或上行容量参数，从多个小区基站中选择目标基站；然后，根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
本公开实施例在上下行链路不平衡度满足预设的重配条件时，根据上下行链路不平衡度或上行容量参数，可以选取当前上行负载较小的基站作为目标基站，重配主公共导频信道功率。本实施例中目标基站主公共导频信道功率的增强量等于上下行链路不平衡度的绝对值，将原不平衡区转换为软切换区，可以扩大软切换区的范围，原不平衡区内的UE可以提前获取相邻基站提供的服务，消除了对相邻基站的信号干扰，提升了用户的业务体验。
可选地，参照图3，本公开公共导频调整方法第三实施例提供一种公共导频调整方法，基于上述图2所示的实施例，在S32之前，还包括S33-S34。
在S33中、根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件。
在获取上下行链路不平衡度和目标基站后，RNC评估目标基站的主公共导频信道功率余量是否满足预设的调整条件。
可选地，作为一种可选实施方式，RNC获取目标基站当前的下行主公共导频信道发射功率余量。
然后，RNC可以根据目标基站当前的主公共导频信道功率余量，判断目标基站是否能够实现将主公共导频信道功率增强DU的绝对值。
当目标基站当前不能将主公共导频信道功率增强DU的绝对值时，则判定当前目标基站的主公共导频信道功率余量不满足预设的调整条件；当目标基站当前能够实现将主公共导频信道功率增强DU的绝对值时，则判定当前目标基站的主公共导频信道功率余量满足预设的调整条件。
在S34中、当所述目标基站的主公共导频信道功率余量不满足预设的调整条件时，则根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配。
若当前目标基站的主公共导频信道功率余量不满足预设的调整条件，也即目标基站当前不能将主公共导频信道功率增强DU的绝对值，则RNC根据目标基站的主公共导频信道功率余量获取导频增强量，根据导频增强量调整目标基站的主公共导频信道功率，进行导频重配。
可选地，作为一种可选实施方式，RNC可以根据目标基站的主公共导频信道功率余量，获取导频增强量。
RNC根据当前目标基站的主公共导频信道功率余量，可以得到当前目标基站的主公共导频信道发射信号的功率剩余情况。
RNC根据目标基站的主公共导频信道功率余量，设置导频增强量E，设置的导频增强量可以是目标基站的主公共导频信道功率余量的预设比例，还可以是根据目标基站的主公共导频信道功率余量、上下行链路不平衡度和预先设置的事件测量报告参数R1A设置的。
在目标基站的主公共导频信道功率余量满足的情况下，RNC可以配置导频增强量E＝|DU|-R1A，则目标基站根据导频增强量E增强当前的主公共导频信道功率后，将目标基站的下行覆盖范围扩大，覆盖原不平衡区，将原不平衡区转换为软切换区。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb。
在本实施例中，可选地，A小区的上行负载大于B小区的负载，上下行链路不平衡度DU＝RoTa-RoTb。
RNC根据基站B的主公共导频信道功率余量配置导频增强量E，DU＞E＞0。然后，RNC可以向基站B发送重配请求消息，控制基站B重配主公共导频信道功率，增强导频功率。重配请求消息可以携带有导频偏置值E。
可选地，取基站A配置的主公共导频信道功率为Pa，基站B配置的主公共导频信道功率为Pb。初始化时，基站A配置的主公共导频信道功率为Pma，基站B配置的主公共导频信道功率为Pmb。
基站B在收到RNC的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+E。
参照图14，当RNC配置E＝DU-R1A，则基站B的下行覆盖范围扩大，覆盖原不平衡区，可以使得原不平衡转换为软切换区，由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
参照图15，当RNC配置E＜DU-R1A，则基站B的下行覆盖范围扩大，覆盖原不平衡区，使得原不平衡部分转换为软切换区，由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
然后，基站B可以向RNC反馈重配响应消息，完成导频重配。
同理，当基站A的负载小于基站B，DU＜0，则RNC可以向基站A发送重配请求消息，控制基站A重配主公共导频信道功率，增强导频功率。重配请求消息携带有导频偏置值E，-DU＞E＞0。
基站A在收到RNC的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+E。使得基站A的下行导频边界向B小区移动，扩大基站A的下行覆盖范围，将原不平衡区全部或部分转换为软切换区。由此，使得B小区的UE在向A小区移动时，可以提前在基站A的上行边界以内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
然后，基站A可以向RNC反馈重配响应消息，完成导频重配。
作为一种可选实施方式，当所述目标基站的主公共导频信道功率余量满足预设的调整条件，则执行S32。
若当前目标基站的主公共导频信道功率余量能够满足预设的调整条件，也即目标基站当前能够将主公共导频信道功率增强DU的绝对值，则RNC可以根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
在本实施例中，在进行导频重配前，可以根据上下行链路不平衡度，评估目标基站的主公共导频信道功率余量是否满足预设的调整条件；当目标基站的主公共导频信道功率余量不满足预设的调整条件，则根据目标基站的主公共导频信道功率余量获取导频增强量，根据导频增强量调整目标基站的主公共导频 信道功率，进行导频重配；当目标基站的主公共导频信道功率余量满足预设的调整条件，则根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
本实施例通过评估当前目标基站的主公共导频信道功率余量，根据目标基站的下行导频功率实际能力，可以灵活配置目标基站的导频增强量，利用目标基站的下行导频功率余量，扩展软切换区的范围，降低相邻小区的信号干扰，给用户带来收益，提升了用户体验。
可选地，参照图4，本公开公共导频调整方法第四实施例提供一种公共导频调整方法，基于上述图1、图2或3所示的实施例(本实施例以图1为例)，在S30之前，还可以包括S40-S60。
在S40中、获取所述上下行链路不平衡度的绝对值。
在获取小区基站的上下行链路不平衡度后，判断当前是否满足导频的重配条件。
作为一种可选实施方式，RNC可以获取当前上下行链路不平衡度的绝对值。
在S50中、判断所述上下行链路不平衡度的绝对值是否达到预设的不平衡门限值。
RNC预先配置有不平衡门限值，可设置为评估当前相邻小区基站的链路不平衡程度。
若当前的上下行链路不平衡度绝对值小于不平衡门限值，则可以判定上下行链路不平衡度的绝对值未达到预设的不平衡门限值；若当前的上下行链路不平衡度绝对值大于或等于不平衡门限值，则可以判定上下行链路不平衡度的绝对值达到了预设的不平衡门限值。
在S60中、当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则可以判定所述上下行链路不平衡度满足预设的重配条件，转入执行S30。
在得到判定结果后，若当前的上下行链路不平衡度绝对值达到预设的不平衡门限值，也即当前相邻小区的链路不平衡程度比较严重，则RNC可以判定当前上下行链路不平衡度满足预设的重配条件，需要进行导频重配。
RNC根据上下行链路不平衡度或所述上行容量参数选择目标基站，进行导频重配。
若当前的上下行链路不平衡度绝对值未达到预设的不平衡门限值，则RNC判定当前不需要进行导频重配，可以不发送重配请求消息。
在本实施例中，在获取上下行链路不平衡度后，获取上下行链路不平衡度的绝对值；判断上下行链路不平衡度的绝对值是否达到预设的不平衡门限值；若上下行链路不平衡度的绝对值达到预设的不平衡门限值，则判定上下行链路不平衡度满足预设的重配条件，根据上下行链路不平衡度或上行容量参数选择目标基站进行导频重配。
本实施例通过预先配置不平衡门限值，仅当相邻小区的上下行链路不平衡度达到不平衡门限值时进行导频重配，可以避免频繁发生导频重配，减少基站负担，增强了各相邻小区信号覆盖范围的稳定性，提升了用户体验。
可选地，参照图5，本公开公共导频调整方法第五实施例提供一种公共导频调整方法，基于上述图4所示的实施例，在S40之后，还可以包括S70。
在S70中、根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表记录了历次导频重配时的上下行链路不平衡度。
在获取上下行链路不平衡度后，RNC可以根据当前上下行链路不平衡度和记录表，判断当前上下行链路不平衡度的变化量是否满足变量门限值。
可选地，作为一种可选实施方式，RNC预先配置有记录表，记录表可以记录历次进行导频重配时的上下行链路不平衡度。
需要说明的是，当RNC在控制相邻小区基站进行导频重配时，可以记录进行导频重配时的上下行链路不平衡度，并将每个上下行链路不平衡度数据记录在记录表中。
RNC根据预设的频率监测相邻小区的上行容量参数，在获取上下行链路不平衡度后，获取当前上下行链路不平衡度的绝对值。
根据预先配置的记录表，查找当前相邻小区历次导频重配的上下行链路不平衡度数据，获取距离当前时刻最近的一次导频重配的上下行链路不平衡度，也可称为上一次上下行链路不平衡度。
RNC根据当前上下行链路不平衡度的绝对值和上一次上下行链路不平衡度的绝对值，可以获取当前上下行链路不平衡度的变化量。
取当前上下行链路不平衡度为DU，上一次上下行链路不平衡度为DU1，当前上下行链路不平衡度的变化量为K，则RNC根据DU的绝对值和DU1的绝对值获取K。
作为一种可选实施方式，令K＝|DU|-|DU1|。计算得到变化量K。
若变化量K小于或等于预设的变量门限值，则判定当前上下行链路不平衡度的变化量未达到预设的变量门限值；若变化量K大于预设的变量门限值，则判定当前上下行链路不平衡度的变化量达到预设的变量门限值。
需要说明的是，变化量K的计算公式还可以根据实际需要灵活设置，例如K可以是DU绝对值和DU1绝对值的差值绝对值。预设的变量门限值可以设置为评估当前上下行链路不平衡度的变化状态，该预设的变量门限值的数值可根据实际需要灵活设置。
作为另一种可选实施方式，RNC还可以预先设置时间间隔阈值，根据记录表，若上一次进行导频重配的时间与当前时刻的时间间隔超过时间间隔阈值，则直接判定当前上下行链路不平衡度达到预设的变量门限值；若上一次进行导频重配的时间与当前时刻的时间间隔小于时间间隔阈值，再获取当前上下行链路不平衡度的变化量进行判定。
由此，得到对当前上下行链路不平衡度的变化量的判定结果。
对应的，所述S60还可以包括S61。
在S61中、若所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则判定所述上下行链路不平衡度满足预设的重配条件。
在得到对当前上下行链路不平衡度的变化量的判定结果后，若当前上下行链路不平衡度的变化量达到预设的变量门限值，则可以判定当前相邻小区基站的上下行链路不平衡度变化量已经超过预期，可以进行导频调整。
RNC判断当前上下行链路不平衡度的绝对值是否达到预设的不平衡门限值。
若当前上下行链路不平衡度的变化量达到预设的变量门限值，并且当前上下行链路不平衡度的绝对值达到预设的不平衡门限值，则可以判定当前上下行链路不平衡度已经满足预设的重配条件，RNC选择目标基站进行导频重配。
若上下行链路不平衡度的变化量未达到预设的变量门限值，或当前上下行链路不平衡度的绝对值未达到预设的不平衡门限值，则可以判定当前上下行链路不平衡度不满足预设的重配条件，RNC不进行导频重配。
在本实施例中，获取当前上下行链路不平衡度后，根据当前上下行链路不平衡度的绝对值和预先配置的记录表，判断当前上下行链路不平衡度的变化量是否达到预设的变量门限值，记录表中可以记录有历次导频重配时的上下行链路不平衡度；若当前上下行链路不平衡度的变化量达到预设的变量门限值，并且当前上下行链路不平衡度的绝对值达到预设的不平衡门限值，则可以判定当 前上下行链路不平衡度满足预设的重配条件，选择目标基站进行导频重配。本实施例通过同时评估当前上下行链路不平衡度绝对值和变化量，可以避免频繁的进行相邻小区基站的导频重配，可以减轻相邻小区基站的负担，提高多个相邻小区信号覆盖范围的稳定性，提升了用户体验。
参照图6，本公开公共导频调整装置第一实施例提供一种公共导频调整装置，所述公共导频调整装置包括检测模块10、平衡模块20和重配模块30。
监测模块10，设置为监测多个相邻小区基站的上行容量参数。
本公开实施例可以通过监测相邻小区的运行状态，动态的调整小区的公共导频信道功率，上下行链路不平衡区域的用户切换为软切换用户，可以使得不平衡区域用户享受到宏分集合并带来的上行收益。
本公开实施例通过公共导频调整装置监控小区运行状态，调整小区的公共导频，进行链路管理。还可以通过其他装置进行小区基站的管理，可根据实际需要灵活设置。公共导频调整装置可部署在RNC中。
可选地，作为一种可选实施方式，监测模块10可以实时监测多个相邻小区基站的上行容量参数，获取当前相邻小区的运行状态。
监测模块10监测得到的上行容量参数包括多个小区基站当前运行的多项上行容量参数，例如上行容量参数包括上行负载L(Load)、噪声增量RoT(Rise over Thermal noise)等。
在本实施例中，主公共导频信道功率为多个小区基站的下行主公共导频信道功率；上行负载表征了不同小区基站的上行链路负载情况；噪声增量表征了不同小区基站的上行底噪抬升情况。
平衡模块20，设置为根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度。
在获取不同小区基站的上行容量参数后，平衡模块20根据上行容量参数获取相邻小区基站的上下行链路不平衡度。
可选地，取相邻小区的上下行链路不平衡度为DU，根据相邻小区的噪声增量或上行负载计算当前相邻小区链路的不平衡度。
示例性地，以当前共有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。
则监测模块10实时监测基站A和基站B的链路运行状态，获取基站A和基 站B的上行容量参数，得到的上行容量参数可以包括噪声增量RoT和上行负载L等。
在获取上行容量参数后，作为一种可选实施方式，平衡模块20可以根据噪声增量计算上下行链路不平衡度。
取A小区的噪声增量为RoTa，B小区的噪声增量为RoTb，则DU为RoTa和RoTb的函数，也即DU＝f(RoTa，RoTb)。
上下行链路不平衡度与RoTa、RoTb的函数关系可灵活设置。
作为另一种可选实施方式，平衡模块20可以根据上行负载计算上下行链路不平衡度。
取A小区的负载为La，B小区的负载为Lb，则DU为La和Lb的函数，也即DU＝f(La，Lb)。
上下行链路不平衡度与La、Lb的函数关系可灵活设置。
由此，平衡模块20可以得到相邻小区基站的上下行链路不平衡度。得到的不平衡度可以表征当前相邻小区基站的上下行链路不平衡程度。
重配模块30，设置为若所述上下行链路不平衡度满足预设的重配条件，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
在获取上下行链路不平衡度后，当上下行链路不平衡度满足预设的重配条件，则重配模块30可以根据上下行链路不平衡度或上行容量参数，选择目标基站进行导频重配。
可选地，作为一种可选实施方式，重配模块30可以预先配置有重配条件，设置为判断当前是否需要进行导频重配。预先配置的重配条件可以是预设的不平衡门限值。
当上下行链路不平衡度达到预设的不平衡门限值时，则可以判定上下行链路不平衡度满足预设的重配条件，当前相邻的小区链路不平衡较为严重，基站的上行链路受到严重干扰，影响用户的体验，此时，重配模块30需要进行导频重配。
然后，重配模块30可以根据上下行链路不平衡度或者上行容量参数，选择当前上行负载较小的小区基站，作为需要进行导频重配的目标基站。
在选择目标基站后，重配模块30向目标基站发送重配请求消息，重配目标基站的主公共导频信道P-CPICH功率，增强目标基站的主公共导频信道功率。
需要说明的是，重配模块30发送的重配请求消息可以携带有目标基站的导 频偏置值，也即目标基站的主公共导频信道功率增强量。导频偏置值可以是根据上下行链路不平衡度获取的，也可以是预先配置的，还可以是根据目标基站的当前上行容量参数进行配置的，可根据实际需要灵活设置。
目标基站在收到重配模块30的重配请求消息后，可以根据重配请求消息携带的导频偏置值，重配主公共导频信道功率，增强目标基站的主公共导频信道功率，扩大目标基站的下行覆盖范围，消除或减少相邻小区基站上下行链路不平衡区域。
目标基站重配主公共导频信道功率后，可以向重配模块30反馈重配响应消息，通知重配模块30当前已完成主公共导频信道功率的重配。
作为另一种可选实施方式，在获取上下行链路不平衡度后，RNC还可以根据上下行链路不平衡度，调整UE当前所在的服务区的相邻小区基站CIO参数，同时结合小区基站主公共导频信道功率的调整，可以降低相邻小区基站上下行链路不平衡造成的干扰。
在本实施例中，监测模块10可以监测多个相邻小区基站的上行容量参数；平衡模块20根据上行容量参数，获取当前多个相邻小区基站的上下行链路不平衡度；当得到的上下行链路不平衡度满足预设的重配条件，则重配模块30根据上下行链路不平衡度或上行容量参数选择目标基站进行导频重配。由于相邻小区基站上行负载的差异，会导致相邻小区之间存在上下行链路不平衡区域，而本实施例通过实时监测相邻小区基站的上行容量参数，得到相邻小区的上下行链路不平衡度，在相邻小区的上下行链路不平衡度达到预设的重配条件时，RNC选取当前相邻的小区基站中上行负载较小的基站作为目标基站，进行主公共导频信道功率的重配，可以增强上行负载较小基站的主公共导频信道功率，从而扩大该上行负载较小基站的下行信号覆盖范围，降低该上行负载较小基站受到的上行信号干扰，消除或者减少不平衡区域，使不平衡区域中的UE能够正常获取服务，降低了小区中用户受到的影响。在相邻小区基站的上行负载存在差异时，本公开实施例可以有效降低小区基站受到的信号干扰，降低对小区中用户服务的影响，提升了用户体验。
可选地，参照图7，本公开公共导频调整装置第二实施例提供一种公共导频调整装置，基于上述图6所示的实施例，所述重配模块30还可以包括：
目标单元31，设置为若所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中 选择目标基站。
在获取当前多个相邻小区基站的上下行链路不平衡度后，若上下行链路不平衡度满足预设的重配条件，则目标单元31根据上下行链路不平衡度或上行容量参数，从多个小区基站中选择目标基站。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb，A小区的负载为La，B小区的负载为Lb。
可选地，作为一种可选实施方式，目标单元31可以根据上下行链路不平衡度从多个小区基站中选择目标基站。
当DU为RoTa和RoTb的函数时，本实施例中取DU＝RoTa-RoTb。
若DU＞0，则RNC可以判定当前基站B的上行负载小，确定基站B为目标基站。
当DU为La和Lb的函数时，本实施例中取DU＝1/(1-La)-1/(1-Lb)。
若DU＞0，则目标单元31可以判定当前基站B的上行负载小，确定基站B为目标基站。
作为另一种可选实施方式，目标单元31根据上行容量参数从多个小区基站中选择目标基站。
根据噪声增量选择目标基站时，若RoTa＞RoTb，则目标单元31根据噪声增量越大，上行负载越大，可以判定当前基站B的上行负载小，确定基站B为目标基站。
根据上行负载选择目标基站时，若La＞Lb，则目标单元31可以判定当前基站B的上行负载小，确定基站B为目标基站。
由此，目标单元31实现了目标基站的确定。
第一重配单元32，设置为根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
在选择目标基站后，第一重配单元32可以根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
可选地，作为一种可选实施方式，第一重配单元32可以向目标基站发送重配请求消息，重配目标基站的主公共导频信道功率，增强目标基站的主公共导频信道功率。
需要说明的是，第一重配单元32发送的重配请求消息可以携带有目标基站的导频偏置值，也即目标基站的主公共导频信道功率增强量。
第一重配单元32发送的导频偏置值为当前上下行链路不平衡度的绝对值。
目标基站在收到第一重配单元32的重配请求消息后，可以根据重配请求消息携带的导频偏置值，重配主公共导频信道功率，增强目标基站的主公共导频信道功率，扩大目标基站的下行覆盖范围，消除或减少相邻小区基站上下行链路不平衡区域。
目标基站重配主公共导频信道功率后，可以向第一重配单元32反馈重配响应消息，通知第一重配单元32当前已完成主公共导频信道功率的重配。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
可选地，取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb。
在本实施例中，上下行链路不平衡度DU＝RoTa-RoTb。
参照图11，当上下行链路不平衡度未达到预设的不平衡门限值时，则当前A小区和B小区之间处于上下行链路平衡状态，也即上行边界与下行导频边界重叠，覆盖范围相同。
当UE在向B小区移动过程中，进入基站A和基站B的共同覆盖范围时，能够检测到基站B的下行信号。UE获取当前检测到的基站B的导频信道质量参数。
在当前的导频信道质量参数满足预先设置的1A事件测量报告条件时，UE向RNC上报当前检测到的基站B导频信道质量参数。RNC判定UE当前可以进行软切换，控制UE与基站B保持通信，获取基站B提供的服务。需要说明的是，本公开实施例中，预先设置的事件测量报告参数R1A为1A事件测量报告参数。
参照图12，若基站A的上行负载大于基站B的上行负载，上下行链路不平衡度达到预设的不平衡门限值，也即大于或等于预设的不平衡门限值。此时，DU＞0。
则由于呼吸效应，基站A的覆盖范围缩小，基站B的覆盖范围扩大。但是，基站A与基站B的下行导频边界位置不变。
则会导致基站A与基站B重叠覆盖范围中，变化后的上行边界与下行导频边界之间的范围为不平衡区，在不平衡区内的UE为了获取基站A的服务，增大上行信号发射功率。增强后的UE上行信号对于基站B为严重的上行干扰信号。
此时，若判定当前上下行链路不平衡度满足预设的重配条件，则目标单元 31根据上下行链路不平衡度或上行容量参数选择基站B为目标基站。
然后，第一重配单元32向基站B发送重配请求消息，控制基站B重配主公共导频信道功率，增强导频功率。重配请求消息携带有导频偏置值Delta，Delta＝DU。
取基站A配置的主公共导频信道功率为Pa，基站B配置的主公共导频信道功率为Pb。初始化时，基站A配置的主公共导频信道功率为Pma，基站B配置的主公共导频信道功率为Pmb。
参照图13，基站B在收到第一重配单元32的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+Delta，也即基站B的导频增强量Delta＝DU。使得基站B的下行导频边界向A小区移动，扩大基站B的下行覆盖范围，覆盖了原不平衡区并且覆盖了部分A小区的上行范围，可以实现将原不平衡区转换为软切换区，并且扩大了软切换区的范围。由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界外获取基站B的下行信号，发生软切换，使得不平衡区的UE不再对相邻基站造成上行信号干扰，还可以降低A小区中的部分UE对相邻基站造成的上行信号干扰。
基站B可以向第一重配单元32反馈重配响应消息，完成导频重配。
同理，若基站A的负载小于基站B，则DU＜0，则第一重配单元32可以向基站A发送重配请求消息，控制基站A重配主公共导频信道功率，增强导频功率。重配请求消息携带有导频偏置值Delta，Delta＝-DU。
基站A在收到第一重配单元32的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+Delta。使得基站A的下行导频边界向B小区移动，扩大基站A的下行覆盖范围，将原不平衡区转换为软切换区，并且可以扩大软切换区的范围。由此，使得B小区的UE在向A小区移动时，可以提前在基站A的上行边界以外发生软切换，使得不平衡区的UE不再对相邻基站造成上行信号干扰，同时还可以降低B小区中的部分UE对相邻基站造成的上行信号干扰。
基站A可以向第一重配单元32反馈重配响应消息，完成导频重配。
在本实施例中，获取多个相邻小区基站的上下行链路不平衡度后，若上下行链路不平衡度满足预设的重配条件，则目标单元31根据上下行链路不平衡度或上行容量参数，从多个小区基站中选择目标基站；然后，第一重配单元32根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。本公开实施例在上下行链路不平衡度满足预设的重配条件时，根据上下行链路不平衡度或上行容量参数，选取当前上行负载较小的基站作为目标基站，重配 主公共导频信道功率。本实施例中目标基站主公共导频信道功率的增强量等于上下行链路不平衡度的绝对值，将原不平衡区转换为软切换区，同时可以扩大软切换区的范围，原不平衡区内的UE可以提前获取相邻基站提供的服务，消除对相邻基站的信号干扰，提升用户的业务体验。
可选地，参照图8，本公开公共导频调整装置提供一种公共导频调整装置，基于上述图7所示的实施例，所述重配模块30还可以包括：
评估单元33，设置为根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件。
在获取上下行链路不平衡度和目标基站后，评估单元33可以评估目标基站的主公共导频信道功率余量是否满足预设的调整条件。
可选地，作为一种可选实施方式，评估单元33可以获取目标基站当前的下行主公共导频信道发射功率余量。
然后，评估单元33可以根据目标基站当前的主公共导频信道功率余量，判断目标基站是否能够实现将主公共导频信道功率增强DU的绝对值。
若目标基站当前不能将主公共导频信道功率增强DU的绝对值，则评估单元33可以判定当前目标基站的主公共导频信道功率余量不满足预设的调整条件；若目标基站当前能够实现将主公共导频信道功率增强DU的绝对值，则评估单元33判定当前目标基站的主公共导频信道功率余量满足预设的调整条件。
第二重配单元34，设置为若所述目标基站的主公共导频信道功率余量不满足预设的调整条件，则可以根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配。
在得到评估结果后，若当前目标基站的主公共导频信道功率余量不满足预设的调整条件，也即目标基站当前不能将主公共导频信道功率增强DU的绝对值，则第二重配单元34可以根据目标基站的主公共导频信道功率余量获取导频增强量，根据导频增强量调整目标基站的主公共导频信道功率，进行导频重配。
可选地，作为一种可选实施方式，第二重配单元34可以根据目标基站的主公共导频信道功率余量，获取导频增强量。
第二重配单元34根据当前目标基站的主公共导频信道功率余量，可以得到当前目标基站的主公共导频信道发射信号的功率剩余情况。
第二重配单元34可以根据目标基站的主公共导频信道功率余量，设置导频增强量E，设置的导频增强量可以是目标基站的主公共导频信道功率余量的预设 比例，还可以是根据目标基站的主公共导频信道功率余量、上下行链路不平衡度和预先设置的事件测量报告参数R1A设置的。
在目标基站的主公共导频信道功率余量满足的情况下，第二重配单元34可以配置导频增强量E＝|DU|-R1A，则目标基站根据导频增强量E增强当前的主公共导频信道功率后，将目标基站的下行覆盖范围扩大，覆盖原不平衡区，将原不平衡区转换为软切换区。
示例性地，以当前有2个相邻小区基站为例进行举例说明。
取当前UE位于A小区，获取基站A提供的服务；取A小区相邻的小区为B小区，B小区由基站B提供服务。获取的上行容量参数中，A小区的噪声增量为RoTa，B小区的噪声增量为RoTb。
在本实施例中，A小区的负载大于B小区的负载，上下行链路不平衡度DU＝RoTa-RoTb。
第二重配单元34可以根据基站B的主公共导频信道功率余量配置导频增强量E，DU＞E＞0。第二重配单元34可以向基站B发送重配请求消息，控制基站B重配主公共导频信道功率，增强导频功率。重配请求消息可以携带有导频偏置值E。
取基站A配置的主公共导频信道功率为Pa，基站B配置的主公共导频信道功率为Pb。初始化时，基站A配置的主公共导频信道功率为Pma，基站B配置的主公共导频信道功率为Pmb。
基站B在收到第二重配单元34的重配请求消息后，可以重配主公共导频信道功率Pb＝Pmb+E。
参照图14，若第二重配单元34配置E＝DU-R1A，则基站B的下行覆盖范围扩大，覆盖原不平衡区，使得原不平衡转换为软切换区，由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
参照图15，若第二重配单元34配置E＜DU-R1A，则基站B的下行覆盖范围扩大，覆盖原不平衡区，使得原不平衡部分转换为软切换区，由此，使得A小区的UE在向B小区移动时，可以提前在基站B的上行边界内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
然后，基站B向第二重配单元34反馈重配响应消息，完成导频重配。
同理，若基站A的负载小于基站B，DU＜0，则第二重配单元34向基站A发送重配请求消息，控制基站A重配主公共导频信道功率，增强导频功率。重配 请求消息携带有导频偏置值E，-DU＞E＞0。
基站A在收到第二重配单元34的重配请求消息后，重配主公共导频信道功率Pb＝Pmb+E。使得基站A的下行导频边界向B小区移动，扩大基站A的下行覆盖范围，将原不平衡区全部或部分转换为软切换区。由此，使得B小区的UE在向A小区移动时，可以提前在基站A的上行边界以内发生软切换，使得不平衡区的UE不再对相邻基站造成干扰。
然后，基站A可以向第二重配单元34反馈重配响应消息，完成导频重配。
所述第一重配单元32，还可以设置为若所述目标基站的主公共导频信道功率余量满足预设的调整条件，则根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
在得到评估结果后，若当前目标基站的主公共导频信道功率余量能够满足预设的调整条件，也即目标基站当前能够将主公共导频信道功率增强DU的绝对值，则第一重配单元32可以根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。
在本实施例中，在进行导频重配前，评估单元33可以根据上下行链路不平衡度，评估目标基站的主公共导频信道功率余量是否满足预设的调整条件；若目标基站的主公共导频信道功率余量不满足预设的调整条件，则第二重配单元34可以根据目标基站的主公共导频信道功率余量获取导频增强量，根据导频增强量调整目标基站的主公共导频信道功率，进行导频重配；若目标基站的主公共导频信道功率余量满足预设的调整条件，则第一重配单元32可以根据上下行链路不平衡度调整目标基站的主公共导频信道功率，进行导频重配。本实施例通过评估当前目标基站的主公共导频信道功率余量，根据目标基站的下行导频功率实际能力，可以灵活配置目标基站的导频增强量，利用目标基站的下行导频功率余量，可以扩展软切换区的范围，降低相邻小区的信号干扰，给用户带来收益，提升了用户体验。
可选地，参照图9，本公开公共导频调整装置第四实施例提供一种公共导频调整装置，基于上述图6、图7或图8所示的实施例(本实施例以图6为例)，所述公共导频调整装置还可以包括：
绝对值模块40，设置为获取所述上下行链路不平衡度的绝对值。
在获取小区基站的上下行链路不平衡度后，需要判断当前是否满足导频的重配条件。
作为一种可选的实施方式，绝对值模块40可以获取当前上下行链路不平衡度的绝对值。
第一判断模块50，设置为判断所述上下行链路不平衡度的绝对值是否达到预设的不平衡门限值。
第一判断模块50预先配置有不平衡门限值，设置为评估当前相邻小区基站的链路不平衡程度。
若当前的上下行链路不平衡度绝对值小于不平衡门限值，则可以判定上下行链路不平衡度的绝对值未达到预设的不平衡门限值；若当前的上下行链路不平衡度绝对值大于或等于不平衡门限值，则可以判定上下行链路不平衡度的绝对值达到了预设的不平衡门限值。
由此，第一判断模块50可以得到判定结果。
条件模块60，设置为若所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则可以判定所述上下行链路不平衡度满足预设的重配条件。
在得到判定结果后，若当前的上下行链路不平衡度绝对值达到预设的不平衡门限值，也即当前相邻小区的链路不平衡程度比较严重，则条件模块60可以判定当前上下行链路不平衡度满足预设的重配条件，需要进行导频重配。
重配模块30可以根据上下行链路不平衡度或所述上行容量参数选择目标基站，进行导频重配。
若当前的上下行链路不平衡度绝对值未达到预设的不平衡门限值，则条件模块60判定当前不需要进行导频重配，重配模块30可以不发送重配请求消息。
在本实施例中，在获取上下行链路不平衡度后，绝对值模块40可以获取上下行链路不平衡度的绝对值；然后，第一判断模块50可以判断上下行链路不平衡度的绝对值是否达到预设的不平衡门限值；若上下行链路不平衡度的绝对值达到预设的不平衡门限值，则条件模块60可以判定上下行链路不平衡度满足预设的重配条件，重配模块30可以根据上下行链路不平衡度或上行容量参数选择目标基站进行导频重配。
本实施例通过预先配置不平衡门限值，当相邻小区的上下行链路不平衡度达到不平衡门限值时进行导频重配，可以避免频繁发生导频重配，减少基站负担，增强相邻小区信号覆盖范围的稳定性，提升用户体验。
可选地，参照图10，本公开公共导频调整装置第五实施例提供一种公共导频调整装置，基于上述图9所示的实施例，所述公共导频调整装置还可以包括：
第二判断模块70，设置为根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表可以记录历次导频重配时的上下行链路不平衡度。
在获取上下行链路不平衡度后，第二判断模块70可以根据当前上下行链路不平衡度和记录表，判断当前上下行链路不平衡度的变化量是否满足变量门限值。
可选地，作为一种可选实施方式，第二判断模块70可以预先配置有记录表，记录表可以记录历次进行导频重配时的上下行链路不平衡度。
需要说明的是，当重配模块30在控制相邻小区基站进行导频重配时，可以记录进行导频重配时的上下行链路不平衡度，并将每个上下行链路不平衡度数据记录在记录表中。
监测模块10可以根据预设的频率监测相邻小区的上行容量参数，在平衡模块20获取上下行链路不平衡度后，绝对值模块40可以获取当前上下行链路不平衡度的绝对值。
然后，第二判断模块70可以根据预先配置的记录表，查找当前相邻小区历次导频重配的上下行链路不平衡度数据，获取距离当前时刻最近的一次导频重配的上下行链路不平衡度，也可称为上一次上下行链路不平衡度。
然后，第二判断模块70可以根据当前上下行链路不平衡度的绝对值和上一次上下行链路不平衡度的绝对值，获取当前上下行链路不平衡度的变化量。
取当前上下行链路不平衡度为DU，上一次上下行链路不平衡度为DU1，当前上下行链路不平衡度的变化量为K，则RNC可以根据DU的绝对值和DU1的绝对值获取K。
作为一种可选实施方式，令K＝|DU|-|DU1|。计算得到变化量K。
若变化量K小于或等于预设的变量门限值，则可以判定当前上下行链路不平衡度的变化量未达到预设的变量门限值；若变化量K大于预设的变量门限值，则可以判定当前上下行链路不平衡度的变化量达到预设的变量门限值。
需要说明的是，变化量K的计算公式还可以根据实际需要灵活设置，例如K可以是DU绝对值和DU1绝对值的差值绝对值。预设的变量门限值可以评估当前上下行链路不平衡度的变化状态，该预设的变量门限值的数值可根据实际需要灵活设置。
作为另一种可选实施方式，第二判断模块70还可以预先设置时间间隔阈值，根据记录表，若上一次进行导频重配的时间与当前时刻的时间间隔超过时间间 隔阈值，则可以直接判定当前上下行链路不平衡度达到预设的变量门限值；若上一次进行导频重配的时间与当前时刻的时间间隔小于时间间隔阈值，再获取当前上下行链路不平衡度的变化量进行判定。
由此，第二判断模块70可以得到对当前上下行链路不平衡度的变化量的判定结果。
对应的，所述条件模块60，还可以设置为若所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则可以判定所述上下行链路不平衡度满足预设的重配条件。
在得到对当前上下行链路不平衡度的变化量的判定结果后，若当前上下行链路不平衡度的变化量达到预设的变量门限值，则条件模块60可以判定当前相邻小区基站的上下行链路不平衡度变化量已经超过预期，可以进行导频调整。
同时，条件模块60可以判断当前上下行链路不平衡度的绝对值是否达到预设的不平衡门限值。
若当前上下行链路不平衡度的变化量达到预设的变量门限值，并且当前上下行链路不平衡度的绝对值达到预设的不平衡门限值，则条件模块60可以判定当前上下行链路不平衡度已经满足预设的重配条件，重配模块30可以选择目标基站进行导频重配。
若上下行链路不平衡度的变化量未达到预设的变量门限值，或当前上下行链路不平衡度的绝对值未达到预设的不平衡门限值，则条件模块60可以判定当前上下行链路不平衡度不满足预设的重配条件，重配模块30不进行导频重配。
在本实施例中，获取当前上下行链路不平衡度后，根据当前上下行链路不平衡度的绝对值和预先配置的记录表，第二判断模块70判断当前上下行链路不平衡度的变化量是否达到预设的变量门限值，记录表记录了历次导频重配时的上下行链路不平衡度；若当前上下行链路不平衡度的变化量达到预设的变量门限值，并且当前上下行链路不平衡度的绝对值达到预设的不平衡门限值，则条件模块60判定当前上下行链路不平衡度满足预设的重配条件，重配模块30选择目标基站进行导频重配。本实施例通过同时评估当前上下行链路不平衡度绝对值和变化量，避免频繁的进行相邻小区基站的导频重配，减轻了相邻小区基站的负担，各相邻小区信号覆盖范围的稳定性，提升了用户体验。
可选地，本公开实施例还提供一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任意一种公共导频调整 方法。
可选地，本公开实施例还提供的一种电子设备的硬件结构示意图，如图16所示，该电子设备包括：
处理器(processor)110和存储器(memory)120；还可以包括通信接口(Communications Interface)130和总线140。
其中，处理器110、存储器120和通信接口130可以通过总线140完成相互间的通信。通信接口130可以用于信息传输。处理器110可以调用存储器120中的逻辑指令，以执行上述实施例的公共导频调整方法。
此外，上述的存储器120中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，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)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质，也可以是暂态存储介质。
最后需要说明的是，本领域普通技术人员可理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来执行相关的硬件来完成的，该程序可存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上述方法的实施例的流程，其中，该计算机可读存储介质可以为磁碟、光盘、只读存储记忆体(ROM)或随机存储记忆体(RAM)等。
工业实用性
本公开实施例公开了一种公共导频调整方法和装置。可以有效降低相邻小区基站受到的信号干扰，降低对小区中用户服务的影响，提升了用户体验。

Claims (11)

  1. 一种公共导频调整方法，包括：
    监测多个相邻小区基站的上行容量参数；
    根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度；以及
    当所述上下行链路不平衡度满足预设的重配条件时，根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
  2. 如权利要求1所述的方法，其中，所述当所述上下行链路不平衡度满足预设的重配条件时，根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配，包括：
    当所述上下行链路不平衡度满足预设的重配条件时，根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中选择目标基站；以及
    根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
  3. 如权利要求2所述的方法，在根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配之前，还包括：
    根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件；
    当所述目标基站的主公共导频信道功率余量不满足预设的调整条件时，根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配；以及
    当所述目标基站的主公共导频信道功率余量满足预设的调整条件时，根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
  4. 如权利要求1-3任一项所述的方法，当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配之前，还包括：
    获取所述上下行链路不平衡度的绝对值；
    判断所述上下行链路不平衡度的绝对值是否达到预设的不平衡门限值；
    当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则判定所述上下行链路不平衡度满足预设的重配条件；以及
    根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
  5. 如权利要求4所述的方法，所述获取所述上下行链路不平衡度的绝对值的步骤之后，还包括：
    根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表记录了历次导频重配时的上下行链路不平衡度；
    所述当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值，则判定所述上下行链路不平衡度满足预设的重配条件的步骤包括：
    当所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
  6. 一种公共导频调整装置包括：
    监测模块，设置为监测多个相邻小区基站的上行容量参数；
    平衡模块，设置为根据所述上行容量参数，获取所述多个相邻小区基站的上下行链路不平衡度；以及
    重配模块，设置为当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数选择目标基站进行导频重配。
  7. 如权利要求6所述的装置，其中，所述重配模块包括：
    目标单元，设置为当所述上下行链路不平衡度满足预设的重配条件时，则根据所述上下行链路不平衡度或所述上行容量参数，从所述多个小区基站中选择目标基站；以及
    第一重配单元，设置为根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
  8. 如权利要求7所述的装置，其中，所述重配模块还包括：
    评估单元，设置为根据所述上下行链路不平衡度，评估所述目标基站的主公共导频信道功率余量是否满足预设的调整条件；
    第二重配单元，设置为若所述目标基站的主公共导频信道功率余量不满足预设的调整条件，则根据所述目标基站的主公共导频信道功率余量获取导频增强量，调整所述目标基站的主公共导频信道功率，进行导频重配；
    所述第一重配单元，还设置为若所述目标基站的主公共导频信道功率余量满足预设的调整条件，则根据所述上下行链路不平衡度调整所述目标基站的主公共导频信道功率，进行导频重配。
  9. 如权利要求6-8任一项所述的装置，还包括：
    绝对值模块，设置为获取所述上下行链路不平衡度的绝对值；
    第一判断模块，设置为判断所述上下行链路不平衡度的绝对值是否达到预设的不平衡门限值；以及
    条件模块，设置为当所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
  10. 如权利要求9所述的装置，还包括：
    第二判断模块，设置为根据所述上下行链路不平衡度的绝对值和预先配置的记录表，判断所述上下行链路不平衡度的变化量是否达到预设的变量门限值，所述记录表记录了历次导频重配时的上下行链路不平衡度；
    所述条件模块，还设置为当所述上下行链路不平衡度的变化量达到预设的变量门限值，并且所述上下行链路不平衡度的绝对值达到预设的不平衡门限值时，则判定所述上下行链路不平衡度满足预设的重配条件。
  11. 一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1-5任一项所述的公共导频调整方法。
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CN101951664A (zh) * 2010-09-14 2011-01-19 天津理工大学 一种负载不平衡的无线网络中用户接入与切换的方法
CN103220717A (zh) * 2012-01-20 2013-07-24 华为技术有限公司 一种负载均衡方法以及相关装置

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