CN103458511A - Method and device for dividing cell edge band - Google Patents
Method and device for dividing cell edge band Download PDFInfo
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- CN103458511A CN103458511A CN2012101763951A CN201210176395A CN103458511A CN 103458511 A CN103458511 A CN 103458511A CN 2012101763951 A CN2012101763951 A CN 2012101763951A CN 201210176395 A CN201210176395 A CN 201210176395A CN 103458511 A CN103458511 A CN 103458511A
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Abstract
The invention discloses a method for dividing a cell edge band. The method includes measuring all reference signal measuring values at each way measuring point of each cell; calculating interference values of each cell by other cells except for own; selecting one or multiple coordinate cells with strongest mutual interference among selected main cells according to the interference values of each cell by the other cells except for own to form a coordinate cell group; dividing the edge band for the main cells and coordinate cells in the coordinate cell group. Meanwhile, the invention discloses a device for dividing the cell edge band. By the aid of the method, the cell edge band can be divided according to the mutual interference among the cells, so that effect of in-cell interference coordination (ICIC) can be guaranteed, and performances of a long term evolution (LTE) system can be further improved.
Description
Technical field
The present invention relates to Long Term Evolution (LTE, Long Term Evolution) interference coordination (ICIC between the system small area, Inter Cell Interference Co-ordination) technology, relate in particular to a kind of method and device of division of cells edge band.
Background technology
The LTE system is utilized frequency spectrum resource to greatest extent by the identical networking technology, the elevator system spectrum efficiency.But the problem that the identical networking technology is brought is that minizone causes hydraulic performance decline because being subject to co-channel interference, especially larger on the communication performance impact of the user terminal of cell edge.Visible, if will improve the LTE systematic function, need to reduce presence of intercell interference (ICI, Inter Cell Interference).
At present, the method that reduces ICI has ICIC, and the main thought of described ICIC is by dividing frequency spectrum, distribute power and scheduling resource, the frequency band at cell edge place and power being staggered.Described ICIC is specially: mark off an edge band from the frequency band of each community, the edge band of neighbor cell is staggered mutually, the edge band of each community is assigned to the user terminal in cell edge, and the user terminal in center of housing estate is still used Whole frequency band.Such as, Fig. 1 for being the edge band that three neighbor cells are divided from Whole frequency band, wherein, the edge band marked off for community 1 is f1, the edge band marked off for community 2 is that the edge band that f2，Wei community 3 marks off is f3, so, can give and make each terminal of the edge customer in community use assigned frequency band and the frequency band that the user terminal in adjacent cell edge is used on geographical position to stagger, thereby reduce ICI.
But, in above-mentioned ICIC method, not according to the mutual disturbed condition between community, division of cells edge band, and in actual scene, can there be the impact of the factors such as the height of shadow fading, base station and antenna downtilt in the LTE system, making between adjacent community, geographical position the phase mutual interference to be not maximum, phase mutual interference maximum likely between non-conterminous community, geographical position, like this, will affect the effect of ICIC on the contrary.
Visible, existing ICIC method, according to the mutual disturbed condition division of cells edge band between community, do not cause possibly can't reaching the Expected Results of ICIC due to, thereby can't guarantee the performance of LTE system.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method and device of division of cells edge band, can be according to the mutual disturbed condition division of cells edge band between community, thus guarantee the effect of ICIC, and then guarantee the performance of LTE system.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method of division of cells edge band, the method comprises:
All reference signal measured values according in each community, each drive test point records, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community;
Be subject to the interference value of each community outside the Chu Zhe community according to each community, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set;
For each is coordinated the main plot in cell set and coordinates community and divide edge band.
In such scheme, described according to all measured values that in each community, each drive test point records, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community, comprise: according to all measured values that in each community, each drive test point records, calculate carrier wave and interference and the noise ratio (CINR, Carrier to Interference plus Noise Ratio) of each drive test point;
CINR according to all drive test points in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community.
In such scheme, the described measured value according to all drive test points in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community, comprise: the number according to CINR lower than the drive test point of CINR thresholding, determine the packet-priority of each community, set up cell list; In the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
In such scheme, describedly select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set, comprise: from cell list, the order from high to low according to packet-priority, select one by one the main plot of community as current selected, mutual interference value sum between the main plot of calculating current selected and each community outside cell list Zhong Chuzhe community;
According to described mutual interference value sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of one or more communities as the main plot of current selected, using the main plot of current selected with coordinate community as coordinating cell set, and by the main plot of current selected and coordination community corresponding record deletion in cell list;
The like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, and delete cell list.
In such scheme, described is the main plot in each coordination cell set and coordination community division edge band, comprising:
Set up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band;
Choose the highest coordination cell set of packet-priority of main plot and coordinate cell set as first, by coordinating the main plot in cell set and coordinating community, add respectively in different edge band set;
From remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set;
For the main plot in current coordination cell set and the selected edge band set respectively of coordination community;
Judging whether to still have coordination cell set state is not to have divided edge band, if have, continue from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; Otherwise, the end process flow process.
In such scheme, describedly be main plot in current coordination cell set and coordinate community selected edge band set respectively, comprising:
Calculate the interference value sum of all communities of current record in each edge band set to the main plot in current coordination cell set, choose the edge band set to the interference value sum minimum of the main plot in current coordination cell set, as the edge band set of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot evolved base station (eNB) and this main plot is added in the edge band set of choosing;
Select one by one the coordination community in current coordination cell set, calculate the interference value sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the interference value sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
The present invention also provides a kind of device of division of cells edge band, and this device comprises: area interference analysis module, cell coordination grouping module and edge band distribution module; Wherein,
The area interference analysis module, for all reference signal measured values that will record according to each drive test point of each community, the interference value that each community calculated is subject to other each communities outside the Chu Zhe community sends to the cell coordination grouping module;
The cell coordination grouping module, be subject to the interference value of each community outside the Chu Zhe community for each community of sending according to the area interference analysis module, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each and form and coordinate cell set, and provide the coordination cell set for the edge band distribution module;
The edge band distribution module, edge band is divided in the main plot in the coordination cell set that is used to the cell coordination grouping module to provide and coordination community.
In such scheme, described device also comprises: the reference signal acquisition module sends to the area interference analysis module for all reference signal measured values that each drive test point of each community is recorded;
Accordingly, described area interference analysis module, the all reference signal measured values that also record for each drive test point of sending according to reception reference signal acquisition module, calculate the CINR of each drive test point, according to the CINR of drive test points all in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community.
In such scheme, described area interference analysis module comprises: CINR calculating sub module and interference value calculating sub module; Wherein,
The CINR calculating sub module, be used to the interference value calculating sub module that the CINR of drive test point all in each community is provided;
The interference value calculating sub module, for each community of sending according to the CINR calculating sub module in the CINR of all drive test points lower than the number of the drive test point of CINR thresholding, determine the packet-priority of each community, set up cell list; In the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
In such scheme, described interference value calculating sub module, also send to the cell coordination grouping module for interference value and the cell list that each community is subject to each community outside the Chu Zhe community;
Accordingly, described cell coordination grouping module, each community of sending specifically for reception interference value calculating sub module is subject to interference value and the cell list of each community outside the Chu Zhe community, from cell list, the order from high to low according to packet-priority, select one by one the main plot of community as current selected, mutual interference value sum between the main plot of calculating current selected and each community outside cell list Zhong Chuzhe community; According to described mutual interference value sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of community as the main plot of current selected, using the main plot of current selected with coordinate community as coordinating cell set, and by the main plot of current selected and coordination community corresponding record deletion in cell list; The like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, and delete cell list
In such scheme, described edge band distribution module, specifically for setting up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band, choose the highest coordination cell set of packet-priority of main plot and coordinate cell set as first from the cell coordination grouping module, by coordinating the main plot in cell set and coordinating community, add respectively in different edge band set; From remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; For the main plot in current coordination cell set and the selected edge band set respectively of coordination community; Judging whether to still have coordination cell set state is not to have divided edge band, if have, continue from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; Otherwise, end operation.
In such scheme, described edge band distribution module, interference value sum specifically for all communities of calculating current record in each edge band set to the main plot in current coordination cell set, choose the edge band set to the interference value sum minimum of the main plot in current coordination cell set, as the edge band set of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot eNB and this main plot is added in the edge band set of choosing;
Select one by one the coordination community in current coordination cell set, calculate the interference value sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the interference value sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
The method of division of cells edge band provided by the present invention and device, can be subject to according to each community the interference value of other each communities outside the Chu Zhe community, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set, coordinate the main plot in cell set and coordinate community and divide respectively edge band for each again, so, just can realize according to the mutual disturbed condition division of cells edge band between community, thereby guarantee the effect of ICIC, and then guarantee the performance of LTE system.
The accompanying drawing explanation
Fig. 1 is in prior art, to be the schematic diagram of the edge band of three neighbor cells divisions;
The method flow schematic diagram that Fig. 2 is division of cells edge band of the present invention;
The installation composition structural representation that Fig. 3 is division of cells edge band of the present invention.
Embodiment
Basic thought of the present invention is: all reference signal measured values according in each community, each drive test point records calculate the interference value that each community is subject to other each communities outside the Chu Zhe community; Be subject to the interference value of each community outside the Chu Zhe community according to each community, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set; For each is coordinated the main plot in cell set and coordinates community and divide edge band.
Wherein, described each community is each community of managing in any one Network Management Equipment in the LTE system.
Below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
The method of a kind of division of cells edge band provided by the invention as shown in Figure 2, comprises the following steps:
Step 101: according to all reference signal measured values that in each community, each drive test point records, calculate the CINR of each drive test point.
Here, all reference signal measured values that described each drive test point records are: according to prior art, the measured value of the reference signal from each community that this drive test point of measuring at each drive test point receives, do not do and repeat here; The method of all reference signal measured values that concrete each drive test point of acquisition records can be inputted the reference signal measured value of measuring in drive test points all in each community by the network management personnel; Wherein, described reference signal measured value can be: Reference Signal Received Power (RSRP, Reference Signal Receiving Power) value or Reference Signal Received Quality (RSRQ, Reference Signal Receiving Quality) value.
The described CINR that calculates each drive test point comprises: suppose that selected RSRP value conduct is with reference to signal measurements, select one by one the drive test point, the all RSRP values that record from the drive test point of selecting, extract the Serving cell signal received power of maximum RSRP value as this drive test point; The interfering signal power that in all RSRP values that this drive test point is recorded, remaining RSRP value summation is received as this drive test point; Utilize the Serving cell signal received power of described drive test point and the interfering signal power of described drive test point, calculate the CINR of this drive test point;
Wherein, the described CINR that calculates this drive test point is prior art, can be for using formula
f
interPwrthe interfering signal power that means drive test point, f
sevPwrthe Serving cell signal received power that means drive test point, f
noisePwrfor the noise power on single sub-carrier, the noise power on described single sub-carrier, its computational methods are prior art, can, by extracting from network management device, not do and repeat here.
Step 102: according to the CINR of drive test points all in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community.
Concrete, the number according to CINR lower than the drive test point of CINR thresholding, determine the packet-priority of each community, sets up cell list; In the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
Here, described according to CINR the number lower than the drive test point of CINR thresholding, the packet-priority of determining each community is: according to preset CINR thresholding, count in each community CINR lower than the number of the drive test point of CINR thresholding, according to the number of the drive test point lower than the CINR thresholding from how to each community sequence of major general, the community that comes first is set to best result group priority, and the rest may be inferred, and the community that comes last is set to lowest packet priority;
The described cell list of setting up is: the order from high to low according to packet-priority, one by one by the number record of each community in list;
The interference value that in the list of described calculation plot successively, each community is subject to other each communities outside the Chu Zhe community comprises:
Step a: from cell list, extract current group priority the highest, be not set to elect as Target cell Yi Ge community as the current goal community, and the state of current goal community is set to elect as Target cell in cell list;
Step b: from cell list, choose the Yi Ge community as current interfered cell, and the state in cell list Zhong Jianggai community is set to selected;
Here, the described Yi Ge community of choosing, can, for arbitrarily choosing, can not have equipment for selected Yi Ge community yet for the state of choosing the highest ,Qie of current group priority community from cell list.
Step c: calculate the interference value sum of described current interfered cell to all drive test points in described current goal community, the interference value of the current interfered cell that described interference value sum is subject to as the current goal community;
Here, embodiment provided by the invention means interference value with interfering carrier than (I/C, Interference to Carrier Ratio); The described current interfered cell of described calculating can comprise the interference value sum of all drive test points in described current goal community: in the current goal community, select one by one the drive test point, the all reference signal measured values that record from the drive test point of selecting, extract the Serving cell signal received power of maximum reference signal measured value as this drive test point; Extract again the reference signal measured value of the current interfered cell that this drive test point records; The reference signal measured value of current interfered cell is obtained to the I/C of this drive test point divided by the Serving cell signal received power of this drive test point; The rest may be inferred, until calculate the I/C of described current interfered cell to all drive test points in described current goal community, described current interfered cell is done the I/C of all drive test points in described current goal community and, I/C is done with income value to the interference value sum to all drive test points in described current goal community as current interfered cell.
Steps d: it is selected whether the state that judges cell list Zhong community all is set to, if not, return to step b, otherwise, execution step e;
Step e: judge that the state that whether still has community in the current area list is not set to elect Target cell as, if do not have, performs step 103; If have, after removing the selected state of each community of recording in cell list, return to step a.
Step 103: be subject to the interference value of each community outside the Chu Zhe community according to each community, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set.
Here, describedly select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, forming the coordination cell set comprises: if mean the interference value between community with I/C, from cell list, the order from high to low according to packet-priority, selected community is as current main plot one by one, calculates in current main plot and cell list mutual I/C sum between each community outside the ,Chu Zhe community;
According to mutual I/C sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of one or more communities as current main plot, using current main plot and one or more coordinations community as coordinating cell set, and by current main plot and one or more coordinations community corresponding record deletion in cell list;
The like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, delete cell list.
Wherein, the quantity of described preset selected coordination community is consistent with the quantity of the edge band of division;
Between each community outside the current main plot of described calculating and cell list Zhong Chuzhe community, mutual I/C sum is: choose one by one in cell list and remove Wai community, current main plot as coordinating calculation plot, from step 102, calculate in the I/C that each community is subject to other each communities the Chu Zhe community, extract the I/C that current main plot is subject to coordinating calculation plot, with the I/C that coordinates calculation plot and be subject to current main plot, do and.
Step 104: for each is coordinated the main plot in cell set and coordinates community and divide edge band.
This step is specially:
Step 1041: set up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band.
Here, described predetermined edge band is predetermined according to the actual requirements edge band, and the choosing method of edge frequency is prior art, does not do and repeats here.
Such as, the quantity of the edge band that predetermined needs are divided is three, sets up three edge band set, the corresponding edge band of each edge band set.
Step 1042: the highest coordination cell set of packet-priority of choosing main plot is coordinated cell set as first, to coordinate the main plot in cell set and coordinate community, add respectively in different edge band set, the state of this coordination cell set is set to divide edge band.
Here, described main plot and the coordination community that will coordinate in cell set, add respectively in a plurality of different edge band set and be: will coordinate the main plot in cell set or coordinate the numbering of place, community eNB, main plot or the numbering of coordinating community are added in the edge band set.
Step 1043: from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set.
Step 1044: be the main plot in current coordination cell set and the selected edge band set respectively of coordination community, the state of this coordination cell set is set to divide edge band.
Here, main plot in described current coordination cell set and coordination community selected edge band set respectively are: calculate the I/C sum of all communities of current record in each edge band set to the main plot in current coordination cell set, choose the edge band set as the main plot in current coordination cell set to an edge band set of the I/C sum minimum of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot eNB and this main plot is added in the edge band set of choosing;
Select one by one the coordination community in current coordination cell set, calculate the I/C sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the I/C sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
Step 1045: judging whether to still have coordination cell set state is not to have divided edge band, if having, performs step 1043; Otherwise, the end process flow process.
The present invention proposes a kind of device of division of cells edge band, as shown in Figure 3, comprising: area interference analysis module 21, cell coordination grouping module 22 and edge band distribution module 23; Wherein,
Area interference analysis module 21, for all reference signal measured values that will record according to each drive test point of each community, the interference value that each community calculated is subject to other each communities outside the Chu Zhe community sends to cell coordination grouping module 22;
Cell coordination grouping module 22, be subject to each community outside the Chu Zhe community for each community of sending according to area interference analysis module 21, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each and form and coordinate cell set, and provide the coordination cell set for edge band distribution module 23;
Edge band distribution module 23, edge band is divided in the main plot in the coordination cell set that is used to cell coordination grouping module 22 to provide and coordination community.
Described device also comprises: reference signal acquisition module 24, and all reference signal measured values that record for each drive test point by each cell coverage area send to area interference analysis module 21; Accordingly, described area interference analysis module 21, also for all reference signal measured values according to receiving each drive test point that reference signal acquisition module 24 sends and recording, calculate the CINR of each drive test point.
Described area interference analysis module 21 comprises: CINR calculating sub module 211, for selecting one by one the drive test point, the all reference signal measured values that record from the drive test point of selecting, extract the Serving cell signal received power of maximum reference signal measured value as this drive test point, the interfering signal power that in all reference signal measured values that this drive test point is recorded, remaining reference signal measured value summation is received as this drive test point, utilize the Serving cell signal received power of described drive test point and the interfering signal power of described drive test point, calculate the CINR of this drive test point.
Described area interference analysis module 21 also comprises: interference value calculating sub module 212, for each community of sending according to CINR calculating sub module 211, the CINR of all drive test points, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community; Accordingly, described CINR calculating sub module 211, also the CINR for the drive test point that each community is all sends to interference value calculating sub module 212.
Described interference value calculating sub module 212, specifically for the number lower than the drive test point of CINR thresholding according to CINR, determine the packet-priority of each community, set up cell list, in the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
Described interference value calculating sub module 212, specifically for the CINR thresholding according to preset, count in each community CINR lower than the number of the drive test point of CINR thresholding, according to the number of the drive test point lower than the CINR thresholding from how to each community sequence of major general, the community that comes first is set to best result group priority, the rest may be inferred, and the community that comes last is set to lowest packet priority.
Described interference value calculating sub module 212, specifically for the order from high to low according to packet-priority, one by one by the number record of each community in cell list.
Described interference value calculating sub module 212, specifically for from cell list, extract current group priority the highest, be not set to elect as Target cell Yi Ge community as the current goal community, and the state of current goal community is set to elect as Target cell in cell list;
From cell list, choose the Yi Ge community as current interfered cell, and the state in cell list Zhong Jianggai community is set to selected;
Calculate the I/C sum of described current interfered cell to all drive test points in described current goal community, the interference value of the current interfered cell that described I/C sum is subject to as the current goal community;
It is selected whether the state that judges cell list Zhong community all is set to, if not, continue from cell list, choose the Yi Ge community as current interfered cell, and the state in cell list Zhong Jianggai community be set to selected,
Otherwise, judge that the state that whether still has community in the current area list is not set to elect as Target cell, if do not have, complete and calculate the interference value that each community is subject to other each communities outside the Chu Zhe community, if have, after removing the selected state of each community of recording in cell list, continuation is from cell list, extract current group priority the highest, be not set to elect as Target cell Yi Ge community as the current goal community, and the state of current goal community is set to elect as Target cell in cell list.
Described interference value calculating sub module 212, specifically in the current goal community, select one by one the drive test point, all reference signal measured values that record from the drive test point of selecting, extract the Serving cell signal received power of maximum reference signal measured value as this drive test point; Extract again the reference signal measured value of the current interfered cell that this drive test point records; The reference signal measured value of current interfered cell is obtained to the I/C of this drive test point divided by the Serving cell signal received power of this drive test point; The rest may be inferred, until calculate the I/C of described current interfered cell to all drive test points in described current goal community, described current interfered cell is done the I/C of all drive test points in described current goal community and.
Described interference value calculating sub module 212, also for completing, calculate after each community is subject to the I/C of other each communities outside the Chu Zhe community, the interference value and the cell list that each community are subject to each community outside the Chu Zhe community send to cell coordination grouping module 22; Accordingly, described cell coordination grouping module 22, also be subject to I/C and the cell list of each community outside the Chu Zhe community for receiving each community that interference value calculating sub module 212 sends.
Described cell coordination grouping module 22, specifically for from cell list, the order from high to low according to packet-priority, selected community is as current main plot one by one, calculate mutual I/C sum between each community outside current main plot and cell list Zhong Chuzhe community, according to mutual I/C sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of one or more communities as current main plot, using current main plot and one or more coordinations community as coordinating cell set, and by current main plot and one or more coordinations community corresponding record deletion in cell list, the like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, delete cell list, notice edge band distribution module 23 is coordinated cell set and is set up, accordingly, described edge band distribution module 23, the notice of also having set up for receiving coordination cell set that cell coordination grouping module 22 sends.
Described cell coordination grouping module 22, specifically for choosing one by one except Wai community, current main plot as coordinating calculation plot, extract the I/C that current main plot is subject to coordinating calculation plot, with the I/C that coordinates calculation plot and be subject to current main plot, do and.
Described edge band distribution module 23, after receiving the notice that coordination cell set that cell coordination grouping module 22 is sent set up, set up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band, then choose the highest coordination cell set of packet-priority of main plot and coordinate cell set as first from cell coordination grouping module 22, to coordinate the main plot in cell set and coordinate community, add respectively in different edge band set, the state of this coordination cell set is set to divide edge band.
Described edge band distribution module 23, specifically for coordinating main plot in cell set or coordinate the numbering of place, community eNB, main plot or the numbering of coordinating community are added in the edge band set.
Described edge band distribution module 23, in remaining all coordination cell set from cell coordination grouping module 22, choose the highest and state of coordinating cell set of the packet-priority of main plot for having divided the coordination cell set of edge band, as current coordination cell set, for the main plot in current coordination cell set and the selected edge band set respectively of coordination community, in cell coordination grouping module 22, the state of this coordination cell set is set to divide edge band.
Described edge band distribution module 23, I/C sum specifically for all communities of calculating current record in each edge band set to the main plot in current coordination cell set, choose the edge band set as the main plot in current coordination cell set to an edge band set of the I/C sum minimum of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot eNB and this main plot is added in the edge band set of choosing; Select one by one the coordination community in current coordination cell set, calculate the I/C sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the I/C sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
Described edge band distribution module 23, specifically for judging in cell coordination grouping module 22 that whether still having coordination cell set state is not to have divided edge band, if have, continue from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; Otherwise, end operation.
The device of above-mentioned division of cells edge band provided by the invention, can be used as software is arranged in the Network Management Equipment in LTE system core net, the edge band set that described edge band distribution module 23 will finally obtain sends to Network Management Equipment, carry out subsequent operation by operating personnel according to actual conditions, according to prior art in Network Management Equipment again, do not do and repeat here;
Also can be used as software is arranged in other equipment, the edge band set can be copied to Network Management Equipment or other network equipments from described edge band distribution module 23, again by operating personnel according to actual conditions, according to prior art, carry out subsequent operation, do not do and repeat here.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (12)
1. the method for a division of cells edge band, is characterized in that, the method comprises:
All reference signal measured values according in each community, each drive test point records, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community;
Be subject to the interference value of each community outside the Chu Zhe community according to each community, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set;
For each is coordinated the main plot in cell set and coordinates community and divide edge band.
2. method according to claim 1, it is characterized in that, described according to all measured values that in each community, each drive test point records, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community, comprise: according to all measured values that in each community, each drive test point records, calculate carrier wave and interference and the noise ratio CINR of each drive test point;
CINR according to all drive test points in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community.
3. method according to claim 2, it is characterized in that, the described measured value according to all drive test points in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community, comprise: the number according to CINR lower than the drive test point of CINR thresholding, determine the packet-priority of each community, set up cell list; In the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
4. method according to claim 1, it is characterized in that, describedly select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each, form and coordinate cell set, comprise: from cell list, the order from high to low according to packet-priority, selected community is as the main plot of current selected one by one, mutual interference value sum between the main plot of calculating current selected and each community outside cell list Zhong Chuzhe community;
According to described mutual interference value sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of one or more communities as the main plot of current selected, using the main plot of current selected with coordinate community as coordinating cell set, and by the main plot of current selected and coordination community corresponding record deletion in cell list;
The like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, and delete cell list.
5. method according to claim 1, is characterized in that, described is the main plot in each coordination cell set and coordination community division edge band, comprising:
Set up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band;
Choose the highest coordination cell set of packet-priority of main plot and coordinate cell set as first, by coordinating the main plot in cell set and coordinating community, add respectively in different edge band set;
From remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set;
For the main plot in current coordination cell set and the selected edge band set respectively of coordination community;
Judging whether to still have coordination cell set state is not to have divided edge band, if have, continue from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; Otherwise, the end process flow process.
6. method according to claim 5, is characterized in that, describedly is main plot in current coordination cell set and coordinates community selected edge band set respectively, comprising:
Calculate the interference value sum of all communities of current record in each edge band set to the main plot in current coordination cell set, choose the edge band set to the interference value sum minimum of the main plot in current coordination cell set, as the edge band set of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot evolved base station eNB and this main plot is added in the edge band set of choosing;
Select one by one the coordination community in current coordination cell set, calculate the interference value sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the interference value sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
7. the device of a division of cells edge band, is characterized in that, this device comprises: area interference analysis module, cell coordination grouping module and edge band distribution module; Wherein,
The area interference analysis module, for all reference signal measured values that will record according to each drive test point of each community, the interference value that each community calculated is subject to other each communities outside the Chu Zhe community sends to the cell coordination grouping module;
The cell coordination grouping module, be subject to the interference value of each community outside the Chu Zhe community for each community of sending according to the area interference analysis module, select the strongest one or more coordinations community of phase mutual interference between the main plot selected with each and form and coordinate cell set, and provide the coordination cell set for the edge band distribution module;
The edge band distribution module, edge band is divided in the main plot in the coordination cell set that is used to the cell coordination grouping module to provide and coordination community.
8. device according to claim 7, is characterized in that, described device also comprises: the reference signal acquisition module sends to the area interference analysis module for all reference signal measured values that each drive test point of each community is recorded;
Accordingly, described area interference analysis module, the all reference signal measured values that also record for each drive test point of sending according to reception reference signal acquisition module, calculate the CINR of each drive test point, according to the CINR of drive test points all in each community, calculate the interference value that each community is subject to other each communities outside the Chu Zhe community.
9. device according to claim 8, is characterized in that, described area interference analysis module comprises: CINR calculating sub module and interference value calculating sub module; Wherein,
The CINR calculating sub module, be used to the interference value calculating sub module that the CINR of drive test point all in each community is provided;
The interference value calculating sub module, for each community of sending according to the CINR calculating sub module in the CINR of all drive test points lower than the number of the drive test point of CINR thresholding, determine the packet-priority of each community, set up cell list; In the calculation plot list, each community is subject to the interference value of other each communities outside the Chu Zhe community successively.
10. device according to claim 9, is characterized in that,
Described interference value calculating sub module, also send to the cell coordination grouping module for interference value and the cell list that each community is subject to each community outside the Chu Zhe community;
Accordingly, described cell coordination grouping module, each community of sending specifically for reception interference value calculating sub module is subject to interference value and the cell list of each community outside the Chu Zhe community, from cell list, the order from high to low according to packet-priority, select one by one the main plot of community as current selected, mutual interference value sum between the main plot of calculating current selected and each community outside cell list Zhong Chuzhe community; According to described mutual interference value sum order from big to small, quantity according to preset selected coordination community, choose the coordination community of community as the main plot of current selected, using the main plot of current selected with coordinate community as coordinating cell set, and by the main plot of current selected and coordination community corresponding record deletion in cell list; The like, until when in cell list, remaining community is less than the quantity of preset selected coordination community, using packet-priority compare Gao community in remaining community in cell list as main plot, all the other communities are all as coordinating community, using main plot with coordinate community as coordinating cell set, and delete cell list
11. device according to claim 10, is characterized in that,
Described edge band distribution module, specifically for setting up the edge band set identical with the quantity of predetermined edge band, be respectively each edge band set and divide a predetermined edge band, choose the highest coordination cell set of packet-priority of main plot and coordinate cell set as first from the cell coordination grouping module, by coordinating the main plot in cell set and coordinating community, add respectively in different edge band set; From remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; For the main plot in current coordination cell set and the selected edge band set respectively of coordination community; Judging whether to still have coordination cell set state is not to have divided edge band, if have, continue from remaining all coordination cell set, choose the highest and state of coordinating cell set of the packet-priority of main plot not for to divide the coordination cell set of edge band, as current coordination cell set; Otherwise, end operation.
12. device according to claim 11, is characterized in that,
Described edge band distribution module, interference value sum specifically for all communities of calculating current record in each edge band set to the main plot in current coordination cell set, choose the edge band set to the interference value sum minimum of the main plot in current coordination cell set, as the edge band set of the main plot in current coordination cell set, the numbering of the numbering of this place, main plot eNB and this main plot is added in the edge band set of choosing;
Select one by one the coordination community in current coordination cell set, calculate the interference value sum of all communities of current record in each edge band set to this coordination community, choose the edge band set as this coordination community to an edge band set of the interference value sum minimum of this coordination community, the numbering of this coordination community place eNB and the numbering of this coordination community are added in the edge band set.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338533A (en) * | 2014-08-13 | 2016-02-17 | 电信科学技术研究院 | Inter-cell interference coordination method and device |
| CN106416387A (en) * | 2014-01-22 | 2017-02-15 | Lg电子株式会社 | Method for performing power control, and user equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2044787A1 (en) * | 2006-07-07 | 2009-04-08 | Nokia Corporation | Improved radio resource allocation mechanism |
| CN101815301A (en) * | 2010-03-17 | 2010-08-25 | 华为技术有限公司 | Interference coordination method, system and apparatus |
| CN101925128A (en) * | 2009-06-17 | 2010-12-22 | 大唐移动通信设备有限公司 | Method and device for reporting buffer status report |
| CN102026390A (en) * | 2010-12-31 | 2011-04-20 | 大唐移动通信设备有限公司 | Base station and resource allocation method for realizing interference coordination among cells |
-
2012
- 2012-05-31 CN CN201210176395.1A patent/CN103458511B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2044787A1 (en) * | 2006-07-07 | 2009-04-08 | Nokia Corporation | Improved radio resource allocation mechanism |
| CN101925128A (en) * | 2009-06-17 | 2010-12-22 | 大唐移动通信设备有限公司 | Method and device for reporting buffer status report |
| CN101815301A (en) * | 2010-03-17 | 2010-08-25 | 华为技术有限公司 | Interference coordination method, system and apparatus |
| CN102026390A (en) * | 2010-12-31 | 2011-04-20 | 大唐移动通信设备有限公司 | Base station and resource allocation method for realizing interference coordination among cells |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416387A (en) * | 2014-01-22 | 2017-02-15 | Lg电子株式会社 | Method for performing power control, and user equipment |
| CN106416387B (en) * | 2014-01-22 | 2019-06-28 | Lg电子株式会社 | Execute the method and user equipment of power control |
| US10595277B2 (en) | 2014-01-22 | 2020-03-17 | Lg Electronics, Inc. | Uplink power control in dual connectivity to first or second cell group based on first or second configuration |
| US10708867B2 (en) | 2014-01-22 | 2020-07-07 | Lg Electronics Inc. | Uplink power control in dual connectivity to first or second cell group based on first or second configuration |
| US10772046B2 (en) | 2014-01-22 | 2020-09-08 | Lg Electronics Inc. | Uplink power control in dual connectivity to first or second cell group based on first or second configuration |
| CN105338533A (en) * | 2014-08-13 | 2016-02-17 | 电信科学技术研究院 | Inter-cell interference coordination method and device |
| CN105338533B (en) * | 2014-08-13 | 2019-05-21 | 电信科学技术研究院 | A kind of inter-cell interference coordination method and device |
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