CN104053222A - Base station transmitting power adjusting method and apparatus - Google Patents
Base station transmitting power adjusting method and apparatus Download PDFInfo
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- CN104053222A CN104053222A CN201310081660.2A CN201310081660A CN104053222A CN 104053222 A CN104053222 A CN 104053222A CN 201310081660 A CN201310081660 A CN 201310081660A CN 104053222 A CN104053222 A CN 104053222A
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Abstract
The embodiment of the invention, which belongs to the wireless communication field, discloses a base station transmitting power adjusting method and apparatus, thereby reducing a signal interference between cells. According to the invention, a switching band is adjusted and determined based on a terminal moving switching parameter and a signal power increment needed to meet a switching condition is determined; signal coverage strengths and cell service ranges of all cells are obtained based on a static simulation analysis; for each cell, a performance index of an edge user of the cell is obtained according to the signal coverage strength and the cell service range of the cell; according to the performance index of the edge user, the signal power increment meeting the switching condition, and a preset target user receiving power threshold, a power adjusting allowance of the cell is determined; and on the basis of the power adjusting allowance, the signal transmitting power of the cell is reduced. Therefore, the system works with the lowest transmitting power on the condition that the target user performance is ensured, thereby reducing the power consumption of the transmitter and effectively reducing the interference on transmission in other cells.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of base station transmitting power method of adjustment and device.
Background technology
In the case of not considering the impact of many presence of intercell interference, if the transmitting power of base station is larger, more can compensating for path loss and the impact that brings such as signal fadeout, base station covers far away and covering performance better so.But, the essential impact of considering presence of intercell interference of actual networking, and the same frequency transmitting power of neighbor base station will cause interference, therefore need to ensure that targeted customer meets the interference that on the basis of minimum communicating requirement, effectively reduction causes adjacent area.The power parameter of general existing network planning Shi Ge community arranges basically identical, is all as the criterion with base station maximum transmission power, then according to Resource Unit (Resource Element, RE) principle of equipartition, each channel is carried out to power division.
Realizing in process of the present invention, inventor finds to exist in prior art following technical problem:
When existing network planning, each base station is all according to the maximum transmission power transmitted signal arranging, and its advantage is to realize effective utilization of resource.But due to factors such as actual site skewness, therefore the setting of transmitting power consistency makes that the transmitting power of part community is bigger than normal causes the problems such as presence of intercell interference is larger.
Summary of the invention
The embodiment of the present invention provides a kind of base station transmitting power method of adjustment and device, disturbs for reducing the signal of minizone.
A kind of base station transmitting power method of adjustment, the method comprises:
A, trigger event time T TT parameter value, hand off signaling time delay HOD parameter value and user's average speed UESpeed parameter value according to pre-configured, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to described switching band distance of increment value and path loss formula;
The community of B, the signal receiving strength of determining the user terminal in each grid cell of planning district inclusion by STATIC SIMULATION method and each grid cell ownership;
C, for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine the power adjustment surplus of this community, in the time that this power adjustment surplus is greater than predefined surplus threshold value, adjusts the signal transmission power of surplus Jiang Gai community according to this power and lower.
A kind of base station transmitting power adjusting device, this device comprises:
Fast mobile terminal handover analysis module, for according to pre-configured trigger event time T TT parameter value, hand off signaling time delay HOD parameter value and user's average speed UESpeed parameter value, determines the switching band distance of increment value that need to extend community; Determine signal power increment size according to described switching band distance of increment value and path loss formula;
STATIC SIMULATION analytical calculation module, for determining the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method;
Power is adjusted surplus determination module, be used for for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine that the power of this community is adjusted surplus;
Power programming module, while being greater than predefined surplus threshold value, adjusting the signal transmission power of surplus Jiang Gai community and lowers for adjusting surplus at described power according to this power.
In the scheme that the embodiment of the present invention provides, according to pre-configured TTT parameter value, HOD parameter value and UESpeed parameter value, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to switching band distance of increment value and path loss formula; Determine the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method; For each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine the power adjustment surplus of this community, in the time that this power adjustment surplus is greater than predefined surplus threshold value, adjusts the signal transmission power of surplus Jiang Gai community according to this power and lower.Visible, in the present invention, on the one hand, the border of community and the transmitting power of community have been considered the time delay in terminal switching process, dynamically adjust and switch band according to handoff parameter, and calculating meets the signal increment of switching condition, on the other hand, on the basis of STATIC SIMULATION, signal increment by edge customer terminal capabilities in conjunction with switching condition demand, judge that whether transmitting power is limited, can calculate transmitting power adjusts surplus and lowers the signal transmission power of this community if not limited, make under the condition of System Assurance targeted customer performance with alap transmitting power work, when reducing transmitter power consumption, effectively reduce the interference of transmitting in other community.
Brief description of the drawings
The method flow schematic diagram that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 A is the schematic flow sheet of the embodiment of the present invention one;
Fig. 2 B is that the static state in the embodiment of the present invention is switched band change schematic diagram;
The architecture of base station schematic diagram that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For the signal that reduces minizone disturbs, the embodiment of the present invention provides a kind of base station transmitting power method of adjustment.
Referring to Fig. 1, the base station transmitting power method of adjustment that the embodiment of the present invention provides, comprises the following steps:
Step 10: adjust and determine according to fast mobile terminal handoff parameter and switch band, and determine and meet the required signal power increment of switching condition, according to pre-configured trigger event time (TTT) parameter value, hand off signaling time delay (HOD) parameter value and user's average speed (UESpeed) parameter value, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to this switching band distance of increment value and path loss formula;
Step 11: the signal coverage strength and the community service range that obtain each community by STATIC SIMULATION analysis, with assessment Cell Edge User receptivity, determine the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method;
Step 12: consider edge customer receptivity and performance of handoffs and the personalized surplus of adjusting of definite cell transmit power, for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, definite signal power increment size and predefined targeted customer's received power threshold value, determine the power adjustment surplus of this community, in the time that this power adjustment surplus is greater than predefined surplus threshold value, adjust the signal transmission power of surplus Jiang Gai community lowers according to this power.Here, surplus threshold value is to be not less than 0 numerical value.
In step 10, can determine the switching band distance of increment value Δ Dis that need to extend current area according to following formula:
ΔDis=TTT/UESpeed+HOD/UESpeed。
The specific implementation of step 11 can be as follows:
According to grid step-length, planning region is divided into n grid cell, n is greater than 1 integer;
For each grid cell: determine the efficient cell that this grid cell is corresponding; A user terminal is moved into this grid cell, calculate path loss values, antenna gain value and the shadow fading value of this grid cell to each efficient cell; According to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate user terminal in this grid cell signal received power under each efficient cell; Signal received power according to the user terminal in this grid cell under each efficient cell, determines the community that this grid cell belongs to.Here, the efficient cell of grid cell is positioned at field intensity prediction scope Nei community for this grid cell, also be, if judge that according to the antenna array of the position of this grid cell and certain community this grid cell is positioned at the field intensity prediction scope of this community, Ze Gai community is the efficient cell of this grid cell, otherwise this community is not the efficient cell of this grid cell.Here, according to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate user terminal in this grid cell signal received power under each efficient cell, circular is: antenna gain value-RRU loss value of shadow fading value+this efficient cell of path loss values-this efficient cell of signal received power=base station transmitting power-this efficient cell of the user terminal in this grid cell under efficient cell.Here, signal received power according to the user terminal in this grid cell under each efficient cell, determine the community of this grid cell ownership, specific implementation is: determine the peak signal received power in user terminal in this grid cell signal received power under all efficient cells, using efficient cell corresponding this peak signal received power as the community of this grid cell ownership.
In step 12, determine the edge customer terminal of current area according to the signal receiving strength that belongs to the user terminal in the grid cell of current area, specific implementation can be as follows:
The user terminal belonging in the grid cell of current area is sorted according to signal receiving strength order from small to large, by n*(1-x%) individual user terminal is defined as edge customer terminal, total number that wherein n is user terminal, x% is targeted customer's ratio.
In step 11, according to the signal receiving strength of edge customer terminal, definite signal power increment size and predefined targeted customer's received power threshold value, determine that the power of current area is adjusted surplus, specific implementation can be as follows:
The signal receiving strength of edge customer terminal and definite signal power increment size and predefined targeted customer's received power threshold value are subtracted each other, and the power that obtains current area is adjusted surplus.Here, predefined targeted customer's received power threshold value can be in [150 ,-50] interval interior value, and preferably value can be-110, and unit is dB.
Preferably, for the final minimum emissive power that obtains the reference signal channel that meets each community under targeted customer's performance prerequisite, thereby complete the planning of cell transmit power, after step 12, can repeated execution of steps 11 and step 12, until do not exist power to adjust the community that surplus is greater than predefined surplus threshold value.
Preferably, after not having a power adjustment surplus is greater than the community of predefined surplus threshold value, can carry out the adjustment operation of following handoff parameter:
For each community, add up respectively the signal power adjustment amount of this community, according to this cell power adjustment amount to cell specific offset amount (CellIndividualOffset, CIO) parameter value is adjusted, so that the switching band of this community does not change, concrete, the CIO parameter value before adjusting and this cell power adjustment amount can be added to the CIO parameter value after being adjusted.
Because the signal transmitting power of part community changes, this can affect again the switching band of respective cell.Handoff parameter CIO is for assessment of the cell-level particular offset that triggers measurement report condition, and generally CIO is configured to 0dB.By cell-level handoff parameter CIO is optimized, can compensating emission power change the impact that performance of handoffs is produced.
Below in conjunction with specific embodiment, the present invention will be described:
Taking LTE system as embodiment, suppose that the measuring amount of the terminal of network side configuration is Reference Signal Received Power (Reference signal received power, RSRP) herein.As shown in Figure 2 A, idiographic flow is as follows:
For the UE in RRC connection status, network is realized the mobile management to UE by handoff procedure.Analyze the time delay and the switching band that in handoff procedure, cause due to fast mobile terminal and change, receive signal increment and considered in cell transmit power adjustment, to ensure system performance of handoffs thereby calculate one.
Enter the position of A3 event and reported after A3 event along with UE moves to meet, UE continues movement can exceed border, Serving cell, and now due to the adding of TTT and HOD, network side is not also able to do in time UE to be switched to Target cell, causes conversation loss.Therefore, the transmitting power of Serving cell should be considered the time delay in UE handoff procedure, here handover delay is embodied in the change of switching band, as shown in Figure 2 B.
Step 1: according to the handoff parameter TTT of fixed configurations and the value of HOD, and the value of UESpeed parameter, calculate the switching band distance of increment value Δ dis that need to extend this community.
Step 2: calculate signal power increment size Δ Signal according to switching band distance of increment value Δ Dis and path loss formula.
No matter how UE moves, Δ Dis is the maximum distance of having considered that UE may move, if the signal quality of Serving cell can meet this maximum distance, other situations can make not call drop of UE so.
Next, obtain signal coverage strength and the community service range in planning region by STATIC SIMULATION method.Generally can be by planning region be divided into grid cell according to certain precision, obtain the signal strength signal intensity that each grid cell is received from community in planning region, basis signal intensity judges that the main Serving cell of each grid cell is belonged to community, for each community, the coverage of the grid region Ji Gai community of Wei Gai community, main Serving cell.Concrete steps are as follows:
Step 3: planning region is divided into n grid cell according to grid step-length;
For each grid cell: determine the efficient cell that this grid cell is corresponding, efficient cell is recorded in the community queue RecordCell that this grid cell is corresponding; A UE is moved into this grid cell by force, and all communities in traversal RecordCell, calculate path loss values, antenna gain value and the shadow fading value of this grid cell to the community traversing; According to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate the UE RSRP under each community in RecordCell in this grid cell; According to the RSRP under each community in RecordCell of the UE in this grid cell, determine the community (ensureing that in successive iterations process covering border, community is constant) of this grid cell ownership.
Next, consider how to carry out from different perspectives power adjustment, adjust strategy according to different power and set corresponding parameter threshold value and optimization target values etc., its basic principle is to ensure to avoid, because transmitting power is excessive, interference is caused in other communities under the condition of targeted customer's performance as far as possible.Concrete steps are as follows:
Step 4: for each community, statistics belongs to the RSRP of the UE in all grid cells in current area, the RSRP that belongs to the UE in the grid cell of current area is sorted according to order from small to large, by n*(1-x%) the individual RSRP RSRP that is defined as edge customer terminal is RSRP_edg, wherein x% is targeted customer's ratio, such as x% is that 95%, x is greater than 0 numerical value that is less than 100.
Step 5: in conjunction with the RSRP_edg, predefined targeted customer's received power threshold value and the Δ Signal that obtain, the power that calculates each community is adjusted surplus Δ Power;
Next, need to realize the optimization that power is adjusted.In the time that definite power is adjusted surplus Δ Power> Δ Power_TH (Δ Power_TH meets the surplus threshold value that transmitting power is adjusted), reference signal (RS) channel emission power of Jiang Gai community is adjusted surplus according to this power and is lowered.Owing to can affecting received signal strength and the signal to noise ratio of UE in grid cell after cell power adjustment, therefore after each adjustment, all to re-execute step 3-step 5, until can exit iterative process while not having community to meet regularization condition again, final acquisition meets the minimum emissive power of each community RS channel under targeted customer's performance prerequisite, thereby complete community, power programming occurs.Concrete steps are as follows:
Step 6: travel through each community, if Δ Power corresponding to the community traversing is greater than Δ Power_TH, power adjustment need to be carried out in Ze Gai community;
Step 7: judge whether to have the community that need to carry out power adjustment, if so, arrive step 8, otherwise, to step 9;
Step 8: for the community that need to carry out power adjustment, the Δ Power corresponding according to this community carries out power decreasing, returns to step 3;
Next,, because the transmitting power of part community changes, can affect the switching band of this community.Handoff parameter CIO is that generally CIO is configured to 0dB for assessment of the cell-level particular offset that triggers measurement report condition.Cell-level handoff parameter CIO is optimized by taking, changes the impact that performance of handoffs is produced with compensating emission power.Concrete steps are as follows:
Step 9: travel through each community, the power adjustment of the community that statistics traverses;
Step 10: do not become principle to keep switching band, according to the power adjustment of each community, the CIO of respective cell is optimized.
Referring to Fig. 3, the embodiment of the present invention provides a kind of base station transmitting power adjusting device, and this device comprises:
Fast mobile terminal handover analysis module 30, this module needs reserved power ascension surplus by considering handover delay and being translated in transmitting power adjustment; Specifically for: according to pre-configured trigger event time T TT parameter value, hand off signaling time delay HOD parameter value and user's average speed UESpeed parameter value, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to described switching band distance of increment value and path loss formula;
STATIC SIMULATION analytical calculation module 31, for determining the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method;
Power is adjusted surplus determination module 32, be used for for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine that the power of this community is adjusted surplus;
Power programming module 33, while being greater than predefined surplus threshold value, adjusting the signal transmission power of surplus Jiang Gai community and lowers for adjusting surplus at described power according to this power.
Further, described fast mobile terminal handover analysis module 30 for:
Determine the switching band distance of increment value Δ Dis that need to extend current area according to following formula:
ΔDis=TTT/UESpeed+HOD/UESpeed。
Further, described STATIC SIMULATION analytical calculation module 31 for:
According to grid step-length, planning region is divided into n grid cell, n is greater than 1 integer;
For each grid cell: determine the efficient cell that this grid cell is corresponding, described efficient cell is positioned at field intensity prediction scope Nei community for this grid cell; A user terminal is moved into this grid cell, calculate path loss values, antenna gain value and the shadow fading value of this grid cell to each efficient cell; According to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate user terminal in this grid cell signal received power under each efficient cell; Signal received power according to the user terminal in this grid cell under each efficient cell, determines the community that this grid cell belongs to.
Further, described power adjust surplus determination module 32 for:
The user terminal belonging in the grid cell of current area is sorted according to signal receiving strength order from small to large, by n*(1-x%) individual user terminal is defined as edge customer terminal, total number that wherein n is user terminal, x% is targeted customer's ratio.
Further, described power adjust surplus determination module 32 for:
The signal receiving strength of edge customer terminal and described signal power increment size and predefined targeted customer's received power threshold value are subtracted each other, and the power that obtains current area is adjusted surplus.
Further, described power programming module 33 is further used for:
Repeated trigger STATIC SIMULATION analytical calculation module and power are adjusted surplus determination module and are carried out corresponding operating, in the time that the definite power adjustment surplus of power adjustment surplus determination module is greater than predefined surplus threshold value, adjust the signal transmission power of surplus Jiang Gai community according to this power and lower, until do not exist power to adjust the community that surplus is greater than predefined surplus threshold value.
Further, this device also comprises:
Handoff parameter adjusting module 34, for after not there is not power adjustment surplus be greater than the community of predefined surplus threshold value, for each community, add up respectively the signal power adjustment amount of this community, according to this cell power adjustment amount, cell specific offset amount CIO parameter value is adjusted, so that the switching band of this community does not change.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, according to pre-configured TTT parameter value, HOD parameter value and UESpeed parameter value, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to switching band distance of increment value and path loss formula; Determine the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method; For each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine the power adjustment surplus of this community, in the time that this power adjustment surplus is greater than predefined surplus threshold value, adjusts the signal transmission power of surplus Jiang Gai community according to this power and lower.Visible, in the present invention, on the one hand, the border of community and the transmitting power of community have been considered the time delay in terminal switching process, dynamically adjust and switch band according to handoff parameter, and calculating meets the signal increment of switching condition, on the other hand, on the basis of STATIC SIMULATION, signal increment by edge customer terminal capabilities in conjunction with switching condition demand, judge that whether transmitting power is limited, can calculate transmitting power adjusts surplus and lowers the signal transmission power of this community if not limited, make under the condition of System Assurance targeted customer performance with alap transmitting power work, when reducing transmitter power consumption, effectively reduce the interference of transmitting in other community.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a base station transmitting power method of adjustment, is characterized in that, the method comprises:
A, trigger event time T TT parameter value, hand off signaling time delay HOD parameter value and user's average speed UESpeed parameter value according to pre-configured, determine the switching band distance of increment value that need to extend community; Determine signal power increment size according to described switching band distance of increment value and path loss formula;
The community of B, the signal receiving strength of determining the user terminal in each grid cell of planning district inclusion by STATIC SIMULATION method and each grid cell ownership;
C, for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine the power adjustment surplus of this community, in the time that this power adjustment surplus is greater than predefined surplus threshold value, adjusts the signal transmission power of surplus Jiang Gai community according to this power and lower.
2. the method for claim 1, is characterized in that, described according to pre-configured TTT parameter value, HOD parameter value and UESpeed parameter value, determines the switching band distance of increment value that need to extend current area, specifically comprises:
Determine the switching band distance of increment value Δ Dis that need to extend current area according to following formula:
ΔDis=TTT/UESpeed+HOD/UESpeed。
3. the method for claim 1, is characterized in that, the community of the signal receiving strength of the user terminal in described each grid cell of determining planning district inclusion by STATIC SIMULATION method and each grid cell ownership, specifically comprises:
According to grid step-length, planning region is divided into n grid cell, n is greater than 1 integer;
For each grid cell: determine the efficient cell that this grid cell is corresponding, described efficient cell is positioned at field intensity prediction scope Nei community for this grid cell; A user terminal is moved into this grid cell, calculate path loss values, antenna gain value and the shadow fading value of this grid cell to each efficient cell; According to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate user terminal in this grid cell signal received power under each efficient cell; Signal received power according to the user terminal in this grid cell under each efficient cell, determines the community that this grid cell belongs to.
4. the method for claim 1, is characterized in that, the signal receiving strength that described basis belongs to the user terminal in the grid cell of current area is determined the edge customer terminal of current area, specifically comprises:
The user terminal belonging in the grid cell of current area is sorted according to signal receiving strength order from small to large, by n*(1-x%) individual user terminal is defined as edge customer terminal, total number that wherein n is user terminal, x% is targeted customer's ratio.
5. the method for claim 1, it is characterized in that, described according to the signal receiving strength of edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine that the power of current area is adjusted surplus, specifically comprise:
The signal receiving strength of edge customer terminal and described signal power increment size and predefined targeted customer's received power threshold value are subtracted each other, and the power that obtains current area is adjusted surplus.
6. the method for claim 1, is characterized in that, after step C, further comprises:
Repeated execution of steps B and step C, until do not exist power to adjust the community that surplus is greater than predefined surplus threshold value.
7. method as claimed in claim 6, is characterized in that, after not having a power adjustment surplus is greater than the community of predefined surplus threshold value, further comprises:
For each community, add up respectively the signal power adjustment amount of this community, according to this cell power adjustment amount, cell specific offset amount CIO parameter value is adjusted, so that the switching band of this community does not change.
8. a base station transmitting power adjusting device, is characterized in that, this device comprises:
Fast mobile terminal handover analysis module, for according to pre-configured trigger event time T TT parameter value, hand off signaling time delay HOD parameter value and user's average speed UESpeed parameter value, determines the switching band distance of increment value that need to extend community; Determine signal power increment size according to described switching band distance of increment value and path loss formula;
STATIC SIMULATION analytical calculation module, for determining the signal receiving strength of the user terminal in each grid cell of planning district inclusion and the community of each grid cell ownership by STATIC SIMULATION method;
Power is adjusted surplus determination module, be used for for each community, determine the edge customer terminal of this community according to the signal received power that belongs to the user terminal in the grid cell of this community, according to the signal received power of this edge customer terminal, described signal power increment size and predefined targeted customer's received power threshold value, determine that the power of this community is adjusted surplus;
Power programming module, while being greater than predefined surplus threshold value, adjusting the signal transmission power of surplus Jiang Gai community and lowers for adjusting surplus at described power according to this power.
9. device as claimed in claim 8, is characterized in that, described fast mobile terminal handover analysis module is used for:
Determine the switching band distance of increment value Δ Dis that need to extend current area according to following formula:
ΔDis=TTT/UESpeed+HOD/UESpeed。
10. device as claimed in claim 8, is characterized in that, described STATIC SIMULATION analytical calculation module is used for:
According to grid step-length, planning region is divided into n grid cell, n is greater than 1 integer;
For each grid cell: determine the efficient cell that this grid cell is corresponding, described efficient cell is positioned at field intensity prediction scope Nei community for this grid cell; A user terminal is moved into this grid cell, calculate path loss values, antenna gain value and the shadow fading value of this grid cell to each efficient cell; According to base station transmitting power and the path loss values, antenna gain value and the shadow fading value that obtain, calculate user terminal in this grid cell signal received power under each efficient cell; Signal received power according to the user terminal in this grid cell under each efficient cell, determines the community that this grid cell belongs to.
11. devices as claimed in claim 8, is characterized in that, described power is adjusted surplus determination module and is used for:
The user terminal belonging in the grid cell of current area is sorted according to signal receiving strength order from small to large, by n*(1-x%) individual user terminal is defined as edge customer terminal, total number that wherein n is user terminal, x% is targeted customer's ratio.
12. devices as claimed in claim 8, is characterized in that, described power is adjusted surplus determination module and is used for:
The signal receiving strength of edge customer terminal and described signal power increment size and predefined targeted customer's received power threshold value are subtracted each other, and the power that obtains current area is adjusted surplus.
13. devices as claimed in claim 8, is characterized in that, described power programming module is further used for:
Repeated trigger STATIC SIMULATION analytical calculation module and power are adjusted surplus determination module and are carried out corresponding operating, in the time that the definite power adjustment surplus of power adjustment surplus determination module is greater than predefined surplus threshold value, adjust the signal transmission power of surplus Jiang Gai community according to this power and lower, until do not exist power to adjust the community that surplus is greater than predefined surplus threshold value.
14. devices as claimed in claim 13, is characterized in that, this base station also comprises:
Handoff parameter adjusting module, for after not there is not power adjustment surplus be greater than the community of predefined surplus threshold value, for each community, add up respectively the signal power adjustment amount of this community, according to this cell power adjustment amount, cell specific offset amount CIO parameter value is adjusted, so that the switching band of this community does not change.
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| CN107113634A (en) * | 2014-12-09 | 2017-08-29 | 华为技术有限公司 | Method and apparatus for optimizing cell-specific antenna configuration parameters |
| WO2017143829A1 (en) * | 2016-02-23 | 2017-08-31 | 中兴通讯股份有限公司 | Method and device for optimizing reference channel transmit power of cell |
| CN108513311A (en) * | 2017-02-24 | 2018-09-07 | 中国移动通信集团北京有限公司 | A kind of cell power optimization method and device |
| CN112399450A (en) * | 2020-12-11 | 2021-02-23 | 中国联合网络通信集团有限公司 | Interference evaluation method and device |
| CN112788612A (en) * | 2019-11-08 | 2021-05-11 | 上海华为技术有限公司 | Beam processing method, device and storage medium |
| CN113473507A (en) * | 2021-09-06 | 2021-10-01 | 中兴通讯股份有限公司 | Cell optimization method, device, storage medium and electronic device |
| WO2022068625A1 (en) * | 2020-09-29 | 2022-04-07 | 华为技术有限公司 | Method and apparatus for controlling transmission power |
| CN114980282A (en) * | 2021-02-24 | 2022-08-30 | 上海华为技术有限公司 | Power adjustment method and network management server |
| CN115665841A (en) * | 2022-09-19 | 2023-01-31 | 荣耀终端有限公司 | Transmission power determination method, chip, terminal device and readable storage medium |
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| CN104080114B (en) * | 2013-03-28 | 2017-09-15 | 电信科学技术研究院 | Performance of handoffs optimization method and device in STATIC SIMULATION platform |
| CN104080114A (en) * | 2013-03-28 | 2014-10-01 | 电信科学技术研究院 | Method and device of optimizing switchover performance in static simulation platform |
| CN107113634B (en) * | 2014-12-09 | 2020-07-14 | 诸暨市尚诺五金经营部 | Method and apparatus for optimizing cell-specific antenna configuration parameters |
| CN105744610A (en) * | 2014-12-09 | 2016-07-06 | 电信科学技术研究院 | Method, system and device for adjusting transmitting power |
| CN107113634A (en) * | 2014-12-09 | 2017-08-29 | 华为技术有限公司 | Method and apparatus for optimizing cell-specific antenna configuration parameters |
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| CN112788612A (en) * | 2019-11-08 | 2021-05-11 | 上海华为技术有限公司 | Beam processing method, device and storage medium |
| WO2021088996A1 (en) * | 2019-11-08 | 2021-05-14 | 华为技术有限公司 | Beam processing method and apparatus, and storage medium |
| CN114339963A (en) * | 2020-09-29 | 2022-04-12 | 华为技术有限公司 | Transmission power control method and device |
| WO2022068625A1 (en) * | 2020-09-29 | 2022-04-07 | 华为技术有限公司 | Method and apparatus for controlling transmission power |
| CN114339963B (en) * | 2020-09-29 | 2024-05-03 | 华为技术有限公司 | Method and device for controlling transmitting power |
| CN112399450A (en) * | 2020-12-11 | 2021-02-23 | 中国联合网络通信集团有限公司 | Interference evaluation method and device |
| CN112399450B (en) * | 2020-12-11 | 2023-06-16 | 中国联合网络通信集团有限公司 | Interference assessment method and device |
| CN114980282A (en) * | 2021-02-24 | 2022-08-30 | 上海华为技术有限公司 | Power adjustment method and network management server |
| CN114980282B (en) * | 2021-02-24 | 2024-04-09 | 上海华为技术有限公司 | Power adjustment method and network management server |
| CN113473507A (en) * | 2021-09-06 | 2021-10-01 | 中兴通讯股份有限公司 | Cell optimization method, device, storage medium and electronic device |
| CN115665841A (en) * | 2022-09-19 | 2023-01-31 | 荣耀终端有限公司 | Transmission power determination method, chip, terminal device and readable storage medium |
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