CN106792740A - A kind of method and device of the network capacity extension - Google Patents
A kind of method and device of the network capacity extension Download PDFInfo
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- CN106792740A CN106792740A CN201611051309.9A CN201611051309A CN106792740A CN 106792740 A CN106792740 A CN 106792740A CN 201611051309 A CN201611051309 A CN 201611051309A CN 106792740 A CN106792740 A CN 106792740A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
Abstract
The invention discloses a kind of method and device of the network capacity extension, it is related to communication technical field, can solve the problem that can access in the overlapping region between sector terminal quantity few and drop rate is high because to divide in LTE network, caused by the low problem of network capacity extension availability is realized by sector splitting technique.The method of the present invention includes：The normal direction of original sector is defined as the initial normal direction of existing sector, existing sector includes the first sector and the second sector；If the average terminal quantity in the overlapping region in the initial normal direction in per unit region is more than or equal to the average terminal quantity in per unit region in base station coverage area, then according to the initial normal direction, adjusting range and adjusting step, determine candidate's normal direction of the existing sector, and according to the minimum value of the terminal quantity in the overlapping region in each candidate's normal direction, determine the normal direction of the existing sector.The present invention is applied to the process for expanding network capacity.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method and device of the network capacity extension.
Background technology
LTE (English：Long Term Evolution, Chinese：Long Term Evolution) after network large scale deployment, user is to net
The demand of network resource is increasing, and the load of network gradually rises, and the network capacity extension turns into inexorable trend.The method master of the network capacity extension
Including：Increase base station number, alien frequencies deployment and with frequency deployment etc..And the region that can be used to dispose base station limited result in part
Region cannot newly-built base station, additionally, existing band resource is limited, and the band bandwidth of LTE network is larger, result in LTE network
In website dilatation cannot be carried out by way of co-sited alien frequencies is disposed, therefore, at present generally using co-sited with frequency deployment by the way of,
To expand the capacity of LTE network.
At present, 3G (English：3rd Generation, Chinese：G mobile communication) main in network use fan
Area's splitting technique increases the number of cells of single base station, so as to realize the dilatation of network.Disturbed due to that can be used in 3G network
Code technology come reduce sector divide latter two division sector between co-channel interference, therefore, in 3G network using sector divide skill
Art realizes that the availability of the network capacity extension is higher.
However, because the band bandwidth of LTE network is larger, in the case where frequency spectrum resource is certain, corresponding number of frequency bands
It is less, can with frequency also just it is less, therefore cannot be reduced using Code scrambling technique in LTE network two division sectors between it is same
Frequency is disturbed.So, after carrying out sector division in the lte networks, the overlapping region between two division sectors can exist tight
The co-channel interference of weight, causes the terminal quantity that can access in overlapping region less, and drop rate is higher etc. after accessing terminal to network
Problem, so as to cause to realize that the availability of the network capacity extension is relatively low using sector splitting technique in LTE network.
The content of the invention
The present invention provides a kind of method and device of the network capacity extension, can solve the problem that because in LTE network two division sectors it
Between overlapping region in can access terminal quantity few and terminal disconnection rate is high, caused by divided using sector in LTE network
Technology realizes the low problem of network capacity extension availability.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
In a first aspect, the present invention provides a kind of method of the network capacity extension, the method includes：
The normal direction of original sector is defined as the initial normal direction of existing sector, the existing sector includes first
Sector and the second sector, first sector and second sector are original sector in the horizontal direction using sector point
Split the sector obtained after technology division；
Determine the overlapping region of first sector and second sector；
If the average terminal quantity in the overlapping region in the initial normal direction in per unit region is more than or waits
In the average terminal quantity in per unit region in base station coverage area, then according to the initial normal direction, adjusting range with
And adjusting step, determine candidate's normal direction of the existing sector, and according to the overlapping region in each candidate's normal direction
The minimum value of interior terminal quantity, determines the normal direction of the existing sector.
Second aspect, the present invention provides a kind of device of the network capacity extension, and the device includes；
Direction determining mould, the initial normal direction for the normal direction of original sector to be defined as existing sector, institute
Stating existing sector includes the first sector and the second sector, and first sector and second sector are original sector in water
Square upwards using the sector that obtains after the division of sector splitting technique；
Area determination module, for determining first fan in the initial normal direction that the direction determining mould determines
The overlapping region of area and second sector；
Direction adjusting module, for when every in the overlapping region in the initial normal direction that the area determination module determines
When average terminal quantity in unit area is more than or equal to the average terminal quantity in base station coverage area in per unit region,
According to the initial normal direction, adjusting range and adjusting step, candidate's normal direction of the existing sector, and root are determined
According to the minimum value of the terminal quantity in the overlapping region in each candidate's normal direction, the normal side of the existing sector is determined
To.
The method and device of the network capacity extension that the present invention is provided, be compared to directly makes in the lte networks in the prior art
After the splitting technique of sector, accessible terminal quantity is few in the overlapping region between two division sectors, and terminal disconnection rate is high,
The present invention can determine the normal direction of existing sector according to the terminal quantity in the overlapping region between two division sectors,
So as to reduce the terminal by co-channel interference.On the one hand, because original sector uses two points obtained after the splitting technique of sector
The coverage of the coverage sum more than original sector of sector is split, therefore, the present invention can ensure the covering model of base station
Enclose it is constant in the case of, within the specific limits adjustment division sector normal direction.On the other hand, due to only in two division fans
There is a problem of in overlapping region between area more terminal cannot access network and drop rate it is high, therefore the present invention is according to connecing
Enter the quantity of terminal adjust division sector normal direction, and then adjust overlapping region actual coverage area domain, can make compared with
Few terminal is influenceed by co-channel interference.Therefore, the present invention can solve the problem that because carried out in LTE network two division sectors between
Overlapping region in can access that terminal quantity is few, and terminal disconnection rate is high, caused by use sector splitting technique in LTE network
Realize the low problem of network capacity extension availability.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below by to be used needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can also obtain other attached according to these accompanying drawings
Figure.
Fig. 1 is a kind of method flow diagram of network capacity extension provided in an embodiment of the present invention；
Fig. 2 is the method flow diagram of another network capacity extension provided in an embodiment of the present invention；
Fig. 3 is the overlapping region schematic diagram in initial normal direction provided in an embodiment of the present invention；
Fig. 4 is the method flow diagram of another network capacity extension provided in an embodiment of the present invention；
Fig. 5 is a kind of apparatus structure schematic diagram of network capacity extension provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of method of the network capacity extension, and the method can be by equipment such as base station, servers
Perform, as shown in figure 1, the method flow is specifically included：
Step 101, the initial normal direction that the normal direction of original sector is defined as existing sector.
Wherein, existing sector includes the first sector and the second sector, and the first sector and the second sector are original sector in water
Square upwards using the sector that obtains after the division of sector splitting technique.
After ensureing to use sector splitting technique, the overlay area of original sector can be covered by existing sector,
The normal direction of original sector can be defined as when sector divides the initial normal direction of existing sector, to use splitting
Antenna is as a example by dividing sector, being exactly that former angle changes splitting antenna.
In view of present invention is generally directed to overlapping region in can access that terminal quantity is few and the high original of terminal disconnection rate
Cause, the low problem of network capacity extension availability is realized in the LTE network for causing using sector splitting technique, therefore, of the invention real
In applying example, it is possible to use the KPI (English based on cell level of operator's configuration：Key Performance Indicator,
Chinese：KPI Key Performance Indicator) the sampling instrument collection drop rate of cell, percent of call completed, the parameter such as the terminal quantity that accesses, from
And determine whether to carry out dilatation to the cell.For example：With the moon as granularity, the drop rate of terminal in 3 middle of the month cells of continuous acquisition,
If the drop rate of terminal has exceeded dilatation thresholding in any one middle of the month cell, it is determined that the cell is plan dilatation cell.Wherein,
Dilatation thresholding can be set by those skilled in the art according to historical experience.
It should be noted that because splitting antenna volume is relatively large, accordingly, it would be desirable to the terrace resource abundance ability of base station
Realize that sector divides using splitting antenna.In actual applications, nothing is applied to by way of cleaving antenna and realizing the network capacity extension
Method is by adding base station but the more sufficient scene of single station terrace resource.
Step 102, the overlapping region for determining the first sector and the second sector.
It is understood that although the actual coverage area domain of the first sector and the second sector is not the sector region of standard,
But can approximately regard the actual coverage area domain of the first sector and the second sector as sector region when MPS process performance is studied.
Therefore, in embodiments of the present invention, the overlapping region of the first sector and the second sector can be regarded as a sector region, and with
Base station is the center of circle of the sector region.So, the first sector and the overlapping region of the second sector can be circle to base station
The heart, central angle is represented for the sector region of θ.Particularly, the overlapping region in initial normal direction can be the center of circle to base station,
With initial normal direction as symmetry axis, central angle is represented for the sector region of θ.
Whether the average terminal quantity in step 103, the overlapping region for determining in initial normal direction in per unit region
More than or equal to the average terminal quantity in per unit region in base station coverage area.If it is, performing step 104；Otherwise,
Perform step 105.
In embodiments of the present invention, the terminal situation in the overlapping region in initial normal direction is counted, so that
The normal direction further to existing sector is determined the need for be adjusted.The process of implementing can be：It is determined that initial method
Average terminal amount R in overlapping region on line direction in per unit regionF, RF=CF/ θ, wherein, CFRepresent initial normal
The time period is specified in overlapping region on direction (for example：One day) in terminal quantity, θ represents crossover region in initial normal direction
The corresponding central angle in domain, RFUnit be number/degree；Determine the average terminal amount R in per unit region in base station coverage areaA,
RA=CA/ 360, wherein, CARepresent the terminal quantity in the same specified time period, R in base station rangeAUnit for number/
Degree；Work as RF≥RAWhen, illustrating that terminal is more in overlapping region, in order to reduce the quantity of the terminal by co-channel interference, can adjust
The normal direction of existing sector；Work as RF＜ RAWhen, illustrate that terminal is less in overlapping region, the normal side of existing sector can be kept
To constant.
Step 104, according to initial normal direction, adjusting range and adjusting step, determine candidate's normal of existing sector
Direction, and according to the minimum value of the terminal quantity in the overlapping region in each candidate's normal direction, determine the method for existing sector
Line direction.
After being split into two sectors due to original sector, the coverage of sector is mutually strained greatly, therefore, within the specific limits
After adjusting the normal direction of existing sector, remain able to cover the overlay area of original sector.For example：The covering of conventional aerial
Scope is 120 degree, and after being replaced by splitting antenna, the splitting single wave number of antenna horizontal field angle is 33 degree, splitting antenna
Coverage is 132 degree, and so in the case where keeping other antenna coverage areas constant, existing sector normal direction can have
12 degree of adjusting range.
It should be noted that adjusting step can be set according to the distribution of terminal in original sector coverage area, adjustment step
Length is too small to cause adjustment often, and terminal quantity difference is smaller in the overlapping region in each candidate's normal direction, and adjusts step
Growing conference causes candidate's normal direction less, it is difficult to select suitable normal direction.In actual applications, adjustment can be walked
Length is set to 2 degree.Specifically how to be set for adjusting step, the present invention is not construed as limiting.
Step 105, the normal direction that initial normal direction is defined as existing sector.
The method of the network capacity extension provided in an embodiment of the present invention, be compared to directly makes in the lte networks in the prior art
After the splitting technique of sector, accessible terminal quantity is few in the overlapping region between two division sectors, and terminal disconnection rate is high,
The present invention can determine the normal direction of existing sector according to the terminal quantity in the overlapping region between two division sectors,
So as to reduce the terminal by co-channel interference.On the one hand, because original sector uses two points obtained after the splitting technique of sector
The coverage of the coverage sum more than original sector of sector is split, therefore, the present invention can ensure the covering model of base station
Enclose it is constant in the case of, within the specific limits adjustment division sector normal direction.On the other hand, due to only in two division fans
There is a problem of in overlapping region between area more terminal cannot access network and drop rate it is high, therefore the present invention is according to connecing
Enter the quantity of terminal adjust division sector normal direction, and then adjust overlapping region actual coverage area domain, can make compared with
Few terminal is influenceed by co-channel interference.Therefore, the present invention can solve the problem that because carried out in LTE network two division sectors between
Overlapping region in can access that terminal quantity is few, and terminal disconnection rate is high, caused by use sector splitting technique in LTE network
Realize the low problem of network capacity extension availability.
The quantity of terminal in the region larger in order to determine co-channel interference, in an implementation of the embodiment of the present invention
In, the specific scope of overlapping region can be marked off according to certain way.Therefore, on the basis of implementation as shown in Figure 1
On, it is also implemented as implementation as shown in Figure 2.Wherein, step 102 determines that the first sector is handed over the covering of the second sector
Folded area can be implemented as step 1021 to step 1025：
Step 1021, the reception level value that the first sector or the second sector are accessed according to terminal, determine existing sector first
Point midway in beginning normal direction.
Step 1022, by point midway and on the straight line of initial normal direction, by terminal from the first sector
The position for switching to the second sector is defined as the first switching position, and by terminal from the second sector switch to the position of the first sector
It is defined as the second switching position.
Step 1023, by between the line between base station and the first switching position, and base station and the second switching position
Line, is defined as the boundary line of overlapping region.
Step 1024, the angle theta for determining between two boundary lines.
Step 1025, by existing sector, with base station as the center of circle, initial normal direction is symmetry axis, and central angle is the fan of θ
Shape region is defined as the corresponding overlapping region of initial normal direction.
As shown in figure 3, terminal accesses the first sector A1 (or second sector A2) near the B of base station, afterwards along initial normal
Direction N is moved；Determine the reception level value of the first sector A1 (or second sector A2) in terminal moving process, level value will be received
Median corresponding to position be defined as point midway D of the existing sector in initial normal direction；First is accessed in terminal
In the case of the A1 of sector, by terminal along the straight line by point midway D and perpendicular to initial normal direction N moving process
In, the position for being switched to the second sector A2 from the first sector A1 is defined as the first switching position S1；The second sector is accessed in terminal
In the case of A2, by terminal along by point midway D and vertically with the moving process of the straight line of initial normal direction N in, from
The position of the second sector the first sector of A2 switching values A1 is defined as the second switching position S2；By base station B and the first switching position S1
Between line, and the line between base station B and the second switching position S2 is defined as the boundary line L of overlapping region；Determine two
Angle theta between bar boundary line；By in existing sector, with base station B as the center of circle, with initial normal direction N as symmetry axis, central angle
For the sector region of θ is defined as the corresponding overlapping region of initial normal direction.
The method of the network capacity extension provided in an embodiment of the present invention, reception level value and handover information according to terminal are determined
The coverage of overlapping region, and the position according to terminal and the coverage of overlapping region, terminal are divided into and are interfered
Larger terminal and the class of less terminal two that is interfered, are disturbed the quantity of larger terminal to improve by reducing afterwards
The availability of the network capacity extension is realized in LTE network using sector splitting technique.
In order to reduce the quantity of the larger terminal that is interfered, in an implementation of the embodiment of the present invention, can be with
Quantity according to different zones terminal in existing sector adjusts the direction of normal, so as to adjust the physical location of overlapping region.
Therefore, on the basis of implementation as shown in Figure 2, it is also implemented as implementation as shown in Figure 4.Wherein, step
104, according to initial normal direction, adjusting range, and adjusting step, determine candidate's normal direction of existing sector, and according to every
The terminal quantity in overlapping region in individual candidate's normal direction, determining the normal direction of existing sector can be implemented as step
Rapid 1041 to step 1044：
Step 1041, according to initial normal direction, adjusting range, and adjusting step, determine candidate's method of existing sector
Line direction.
In embodiments of the present invention, initial normal direction is defined as 0 degree of line, at this point it is possible to general ± p × q degree line determines
Be candidate's normal direction, wherein, p represents adjusting step, q=1,2 ..., k/2, k represent the number of candidate's normal direction, "+"
The rotate counterclockwise on the basis of initial normal direction is represented, "-" is represented and turned clockwise on the basis of initial normal direction.So that
Sector division is carried out with splitting antenna, adjusting range is 12 degree, and adjusting step p is set to as a example by 2 degree, according to initial normal side
To, adjusting range, adjusting step can determine that the number k of candidate's normal direction is 3, will be with base station as end points, initial normal side
It is defined as candidate's normal direction to direction signified after swing ± 2 × q, wherein, q=1,2,3.
Step 1042, by existing sector, with base station as the center of circle, candidate's normal direction is symmetry axis, and central angle is the fan of θ
Shape region is defined as the candidate's overlapping region in candidate's normal direction.
Terminal quantity in step 1043, the overlapping region for determining in each candidate's normal direction.
Step 1044, the normal direction that the corresponding candidate's normal direction of minimum terminal quantity is defined as existing sector.
The method of the network capacity extension provided in an embodiment of the present invention, can determine in the overlapping region in each candidate's normal direction
The quantity of terminal, and divide the normal direction of sector to adjust according to the quantity of terminal, and then adjust actually covering for overlapping region
Cover area, so that less terminal is influenceed by co-channel interference.Therefore, the present invention can solve the problem that because being carried out in LTE network
Can access that terminal quantity is few in overlapping regions between two division sectors, and terminal disconnection rate is high, caused by LTE network
The low problem of network capacity extension availability is realized using sector splitting technique.
The embodiment of the present invention provides a kind of device 20 of the network capacity extension, any for perform as shown in Figure 1, Figure 2 and Figure 4
Methodology flow, as shown in figure 5, the device 20 includes：
Direction determining mould 201, the initial normal direction for the normal direction of original sector to be defined as existing sector,
Existing sector includes the first sector and the second sector, and the first sector and the second sector are original sector in the horizontal direction using fan
The sector obtained after area's splitting technique division.
Area determination module 202, for determining the first sector in the initial normal direction that direction determining mould 201 determines
With the overlapping region of the second sector.
Direction adjusting module 203, for when in the overlapping region in the initial normal direction that area determination module 202 determines
Average terminal quantity in per unit region is more than or equal to the average terminal quantity in per unit region in base station coverage area
When, according to initial normal direction, adjusting range and adjusting step, determine candidate's normal direction of existing sector, and according to every
The minimum value of the terminal quantity in overlapping region in individual candidate's normal direction, determines the normal direction of existing sector.
In an implementation of the embodiment of the present invention, area determination module 202 according to terminal specifically for accessing the
One sector or the reception level value of the second sector, determine point midway of the existing sector in initial normal direction；In process
Put position and on the straight line of initial normal direction, terminal is defined as from the first sector switch to the position of the second sector
First switching position, and terminal is defined as the second switching position from the second sector switch to the position of the first sector；By base station
With the line between the line between the first switching position, and base station and the second switching position, it is defined as the side of overlapping region
Boundary line；Determine the angle theta between two boundary lines；By in existing sector, with base station as the center of circle, initial normal direction is symmetrical
Axle, central angle is defined as the corresponding overlapping region of initial normal direction for the sector region of θ.
In an implementation of the embodiment of the present invention, direction adjusting module 203 specifically for by existing sector, with
Base station is the center of circle, and candidate's normal direction is symmetry axis, and central angle is defined as the candidate in candidate's normal direction for the sector region of θ
Overlapping region；Determine the terminal quantity in the overlapping region in each candidate's normal direction；By the corresponding time of minimum terminal quantity
Normal direction is selected to be defined as the normal direction of existing sector.
In an implementation of the embodiment of the present invention, direction adjusting module 203 is additionally operable to when in initial normal direction
Overlapping region in average terminal quantity less than average terminal quantity in base station coverage area when, initial normal direction is true
It is set to the normal direction of existing sector.
The device of the network capacity extension that the present invention is provided, is compared to and directly uses sector in the lte networks in the prior art
After splitting technique, accessible terminal quantity is few in the overlapping region between two division sectors, and terminal disconnection rate is high, the present invention
The normal direction of existing sector can be determined, so as to subtract according to the terminal quantity in the overlapping region between two division sectors
Less by the terminal of co-channel interference.On the one hand, because original sector uses the two division sectors obtained after the splitting technique of sector
Coverage sum more than original sector coverage, therefore, the present invention can ensure base station coverage it is constant
In the case of, the normal direction of sector is divided in adjustment within the specific limits.On the other hand, between due to only dividing sector at two
Overlapping region in there is a problem of more terminal cannot access network and drop rate it is high, therefore the present invention is according to access terminal
Quantity come adjust division sector normal direction, and then adjust overlapping region actual coverage area domain, less end can be made
End is influenceed by co-channel interference.Therefore, the present invention can solve the problem that overlapping between two division sectors because being carried out in LTE network
Can access that terminal quantity is few in region, and terminal disconnection rate is high, caused by realize net using sector splitting technique in LTE network
The low problem of network dilatation availability.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for device reality
Apply for example, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to embodiment of the method
Part explanation.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method, can be
The hardware of correlation is instructed to complete by computer program, described program can be stored in computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (English：Read-Only Memory, referred to as：ROM) or random access memory (English：
Random Access Memory, referred to as：RAM) etc..
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (8)
1. a kind of method of the network capacity extension, it is characterised in that methods described includes：
The normal direction of original sector is defined as the initial normal direction of existing sector, the existing sector includes the first sector
With the second sector, first sector and second sector are that original sector divides skill using sector in the horizontal direction
The sector obtained after art division；
Determine the overlapping region of first sector and second sector；
If the average terminal quantity in the overlapping region in the initial normal direction in per unit region is more than or equal to base
The average terminal quantity stood in overlay area in per unit region, then according to the initial normal direction, adjusting range and tune
Synchronizing is long, determines candidate's normal direction of the existing sector, and according in the overlapping region in each candidate's normal direction
The minimum value of terminal quantity, determines the normal direction of the existing sector.
2. method according to claim 1, it is characterised in that determine that first sector is overlapping with second sector
The step of region, includes：
The reception level value of first sector or second sector is accessed according to terminal, determines the existing sector described
Point midway in initial normal direction；
By the point midway and on the straight line of the initial normal direction, the terminal is fanned from described first
The position that area switches to second sector is defined as the first switching position, and by the terminal from second sector switch to
The position of first sector is defined as the second switching position；
By the company between the line between base station and first switching position, and the base station and second switching position
Line, is defined as the boundary line of the overlapping region；
Determine the angle theta between two boundary lines；
By in the existing sector, with the base station as the center of circle, the initial normal direction is symmetry axis, and central angle is the fan of θ
Shape region is defined as the corresponding overlapping region of initial normal direction.
3. method according to claim 2, it is characterised in that according in the overlapping region in each candidate's normal direction
Terminal quantity, wraps the step of the corresponding candidate's normal direction of minimum terminal quantity is determined into the normal direction of the existing sector
Include：
By in the existing sector, with the base station as the center of circle, candidate's normal direction is symmetry axis, and central angle is the fan of θ
Shape region is defined as the candidate's overlapping region in candidate's normal direction；
Determine the terminal quantity in the overlapping region in each candidate's normal direction；
The corresponding candidate's normal direction of minimum terminal quantity is defined as the normal direction of the existing sector.
4. method as claimed in any of claims 1 to 3, it is characterised in that determine candidate's normal direction in step
After upper first sector and the overlapping region of second sector, methods described also includes：
If the average terminal quantity in overlapping region in initial normal direction is less than average in the base station coverage area
Terminal quantity, then the initial normal direction is defined as the normal direction of the existing sector.
5. a kind of device of the network capacity extension, it is characterised in that described device includes：
Direction determining mould, the initial normal direction for the normal direction of original sector to be defined as existing sector is described existing
Having sector includes the first sector and the second sector, and first sector and second sector are original sector in level side
Upwards using the sector obtained after the division of sector splitting technique；
Area determination module, for determine first sector in the initial normal direction that the direction determining mould determines with
The overlapping region of second sector；
Direction adjusting module, for when per unit in the overlapping region in the initial normal direction that the area determination module determines
When average terminal quantity in region is more than or equal to the average terminal quantity in base station coverage area in per unit region, according to
The initial normal direction, adjusting range and adjusting step, determine candidate's normal direction of the existing sector, and according to every
The minimum value of the terminal quantity in overlapping region in individual candidate's normal direction, determines the normal direction of the existing sector.
6. device according to claim 5, it is characterised in that the area determination module according to terminal specifically for accessing
First sector or the reception level value of second sector, determine the existing sector in the initial normal direction
Point midway；
By the point midway and on the straight line of the initial normal direction, the terminal is fanned from described first
The position that area switches to second sector is defined as the first switching position, and by the terminal from second sector switch to
The position of first sector is defined as the second switching position；
By the company between the line between base station and first switching position, and the base station and second switching position
Line, is defined as the boundary line of the overlapping region；
Determine the angle theta between two boundary lines；
By in the existing sector, with the base station as the center of circle, the initial normal direction is symmetry axis, and central angle is the fan of θ
Shape region is defined as the corresponding overlapping region of initial normal direction.
7. device according to claim 6, it is characterised in that the direction adjusting module is specifically for by the existing fan
In area, with the base station as the center of circle, candidate's normal direction is symmetry axis, central angle for the sector region of θ be defined as it is described
Candidate's overlapping region in candidate's normal direction；
Determine the terminal quantity in the overlapping region in each candidate's normal direction；
The corresponding candidate's normal direction of minimum terminal quantity is defined as the normal direction of the existing sector.
8. the device according to any one in claim 5 to 7, it is characterised in that the direction adjusting module is additionally operable to
When the average terminal quantity in the overlapping region in initial normal direction is less than the average terminal number in the base station coverage area
During amount, the initial normal direction is defined as the normal direction of the existing sector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051309.9A CN106792740B (en) | 2016-11-23 | 2016-11-23 | A kind of method and device of the network capacity extension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051309.9A CN106792740B (en) | 2016-11-23 | 2016-11-23 | A kind of method and device of the network capacity extension |
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| Publication Number | Publication Date |
|---|---|
| CN106792740A true CN106792740A (en) | 2017-05-31 |
| CN106792740B CN106792740B (en) | 2019-07-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1992956A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Method for processing uplink and downlink signal based on intelligent antenna system |
| US20090023477A1 (en) * | 2007-07-19 | 2009-01-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for reconfiguring a multi-sector base station |
| CN101848471A (en) * | 2010-05-07 | 2010-09-29 | 摩比天线技术（深圳）有限公司 | Capacity expansion method for wireless communication network and base station antenna |
| CN102892124A (en) * | 2012-09-25 | 2013-01-23 | 中国联合网络通信集团有限公司 | Method, device and system for adjusting coverage area of base station |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992956A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Method for processing uplink and downlink signal based on intelligent antenna system |
| US20090023477A1 (en) * | 2007-07-19 | 2009-01-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for reconfiguring a multi-sector base station |
| CN101848471A (en) * | 2010-05-07 | 2010-09-29 | 摩比天线技术（深圳）有限公司 | Capacity expansion method for wireless communication network and base station antenna |
| CN102892124A (en) * | 2012-09-25 | 2013-01-23 | 中国联合网络通信集团有限公司 | Method, device and system for adjusting coverage area of base station |
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