CN105228161B - A kind of adjacent section planning method - Google Patents
A kind of adjacent section planning method Download PDFInfo
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- CN105228161B CN105228161B CN201410286291.5A CN201410286291A CN105228161B CN 105228161 B CN105228161 B CN 105228161B CN 201410286291 A CN201410286291 A CN 201410286291A CN 105228161 B CN105228161 B CN 105228161B
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Abstract
Embodiment of the present invention proposes a kind of methods of adjacent section planning.Comprise determining that the adjacent area candidate list of serving cell；The cell backwards of the serving cell is deleted in the adjacent area candidate list according to main lobe direction angle, and determines the priority of each remaining candidate adjacent at a distance from serving cell according to remaining candidate adjacent each in the adjacent area candidate list；According to neighboring cell list number and the priority of each remaining candidate adjacent, the neighboring cell list of the serving cell is determined from the adjacent area candidate list.After embodiment of the present invention, independent of electronic map and propagation model, fully consider that the influence of distance and directional aerial deflection to adjacent section planning significantly improves the order of accuarcy of adjacent section planning by defining the priority factors of adjacent area.
Description
Technical field
The invention belongs to mobile communication technology field, especially a kind of adjacent section planning method.
Background technique
Wireless communication (Wireless communication) can be propagated in free space using electromagnetic wave signal
Characteristic carry out information exchange a kind of communication mode.In the information communications field in recent years, it is with fastest developing speed, most widely used just
It is wireless communication technique.The wireless communication realized on the move is commonly referred to as mobile communication again, and people are collectively referred to as the two wirelessly to move
Dynamic communication.
Adjacent area is defined as: two are covered with the cell for being overlapped and being provided with handoff relation, and a cell can have multiple
Neighboring community.Adjacent section planning is the important content of wireless communication system network planning.Adjacent section planning is to the continuity for keeping communication
Very important meaning is played, is highly important link in wireless network planning, whether adjacent section planning rationally directly affects net
Network performance, such as the quality height of adjacent section planning will directly influence the indexs such as performance of handoffs and cutting off rate.
Currently, adjacent section planning scheme in the prior art specifically includes that
(1), artificial planning: there is the disadvantages of low efficiency, at high cost.
(2), based on the adjacent section planning of coverage prediction: determined whether according to the overlapping coverage condition between cell for adjacent area,
This method is largely dependent upon the accuracy of numerical map and propagation model, in the accuracy of numerical map and propagation model
Under the premise of it is difficult to ensure that, adjacent section planning result error can be bigger.
(3), based on the adjacent section planning of distance: only considered distance factor, do not account for directional aerial difference main lobe direction
The influence at angle will cause the unreasonable of adjacent section planning.
Summary of the invention
Embodiment of the present invention proposes a kind of methods of adjacent section planning, to improve the order of accuarcy of adjacent section planning.
Technical solution of the present invention includes:
A kind of method of adjacent section planning, this method comprises:
Determine the adjacent area candidate list of serving cell；
The cell backwards of the serving cell is deleted in the adjacent area candidate list according to main lobe direction angle, and according to this
Each remaining candidate adjacent determines the preferential of each remaining candidate adjacent at a distance from serving cell in the candidate list of adjacent area
Grade；
According to neighboring cell list number and the priority of each remaining candidate adjacent, from the adjacent area candidate list
The neighboring cell list of the middle determination serving cell.
The cell backwards for deleting the serving cell in the adjacent area candidate list according to main lobe direction angle, packet
It includes:
The main lobe direction of candidate adjacent in serving cell and adjacent area candidate list is translated；
Region corresponding to the main lobe direction angle of detection service cell and the candidate adjacent and serving cell and the candidate
Relativeness between the half-power angle overlay region of adjacent area, wherein if region whole position corresponding to the main lobe direction angle
Within the half-power angle overlay region, then determining the candidate adjacent not is backwards to cell, if the main lobe direction angle institute
Corresponding region is not entirely located within the half-power angle overlay region, then determines that the candidate adjacent is backwards to cell, and in institute
It states and deletes the candidate adjacent in the candidate list of adjacent area.
It is described each according to being determined at a distance from serving cell for remaining candidate adjacent each in the adjacent area candidate list
The priority of remaining candidate adjacent includes:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form company
Wiring；
Using base station location as origin, in the two sides of the connecting line with preset angle scanning, if in the angle
Exist in range and sweep middle cell, and distance is greater than the candidate adjacent between the base station for sweeping middle cell and the base station of serving cell
Base station and serving cell base station between distance, and in the angular range not between the base station of serving cell at a distance from
Less than the other candidate adjacent of distance between the base station of the candidate adjacent to serving cell, then it is first lap that the candidate adjacent, which is arranged,
Adjacent area, it is the second circle adjacent area that this, which sweeps middle cell, and the priority of first lap adjacent area is greater than the priority of the second circle adjacent area.
It is described that each remaining time is determined at a distance from serving cell according to residue cell each in the adjacent area candidate list
The priority for selecting adjacent area includes:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form company
Wiring；
Using the base station location of serving cell as origin, in the two sides of the connecting line with preset angle scanning, such as
Fruit exists in the angular range sweep in cell, and distance is greater than between the base station for sweeping middle cell and the base station of serving cell
Distance between the base station of the candidate adjacent and the base station of serving cell, and have in the angular range with the base station of serving cell it
Between distance be less than the candidate adjacent to the other candidate adjacent of distance between the base station of serving cell, then the candidate adjacent is set
For first lap adjacent area, which is the second circle adjacent area, this sweeps middle cell as third circle adjacent area, and first lap adjacent area
Priority be greater than second circle adjacent area priority, second circle adjacent area priority be greater than third circle adjacent area priority.
It include co-sited cell in the adjacent area candidate list；This method further comprises:
Co-sited cell is arranged with highest priority in the neighboring cell list of the serving cell.
Comprising forcing cell in the adjacent area candidate list；This method further comprises: arranging in the adjacent area of the serving cell
In table, cell is forced to be only second to the priority setting of co-sited cell.
It can be seen from the above technical proposal that the method for adjacent section planning of the invention comprises determining that the adjacent area of serving cell
Candidate list；Deleted in the adjacent area candidate list according to main lobe direction angle the serving cell backwards to cell, and according to
Each remaining candidate adjacent determines the excellent of each remaining candidate adjacent at a distance from serving cell in the adjacent area candidate list
First grade；According to neighboring cell list number and the priority of each remaining candidate adjacent, from the adjacent area candidate list
Determine the neighboring cell list of the serving cell.It can be seen that after using embodiment of the present invention, independent of electronic map and biography
Broadcast model, fully considered the influence to adjacent section planning of distance and directional aerial deflection, by define the priority of adjacent area because
Son significantly improves the order of accuarcy of adjacent section planning.
Detailed description of the invention
Fig. 1 is the method flow diagram according to adjacent section planning of the present invention.
Fig. 2 is the schematic diagram of the half-power angle of serving cell according to the present invention and candidate adjacent.
Fig. 3 is that the schematic diagram after translation is directed toward in serving cell according to the present invention and candidate adjacent.
Fig. 4 is the schematic diagram that the priority of candidate adjacent is calculated according to the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made with reference to the accompanying drawing further
Detailed description.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
In the present invention, independent of electronic map and propagation model, cell distance and directional aerial side have been fully considered
Influence to angle to adjacent section planning significantly improves the order of accuarcy of adjacent section planning by defining the priority factors of adjacent area.
Fig. 1 is the method flow diagram of adjacent section planning according to the present invention.
As shown in Figure 1, this method comprises:
Step 101: determining the adjacent area candidate list of serving cell.
Herein, it can determine that the candidate adjacent of serving cell, each candidate adjacent are together constituted based on various ways
Adjacent area candidate list.
Step 102: deleting the cell, and root backwards of the serving cell in the candidate list of adjacent area according to main lobe direction angle
Each remaining candidate adjacent is determined at a distance from serving cell according to each remaining candidate adjacent in the adjacent area candidate list
Priority.
Herein, the main lobe direction of the candidate adjacent in serving cell and adjacent area candidate list can be translated；Then it examines
Survey half function in region and serving cell and the candidate adjacent corresponding to serving cell and the main lobe direction angle of the candidate adjacent
Relativeness between the overlay region of rate angle, wherein if region corresponding to main lobe direction angle is entirely located in half-power angle overlapping
Within area, then determining the candidate adjacent not is backwards to cell, if region corresponding to main lobe direction angle is not entirely located in half
Within power angle overlay region, then determine that the candidate adjacent is and the candidate adjacent to be deleted in the candidate list of adjacent area backwards to cell.
Step 103: according to neighboring cell list number and the priority of each remaining candidate adjacent, from adjacent area candidate list
The neighboring cell list of the middle determination serving cell.
In one embodiment:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form company
Wiring；
Using base station location as origin, in the two sides of connecting line with preset angle scanning, if in the angular range
It is interior exist sweep middle cell, and sweep distance between the base station of middle cell and the base station of serving cell be greater than the base station of the candidate adjacent with
Distance between the base station of serving cell, and in the angular range not between the base station of serving cell at a distance from be less than the time
Adjacent area is selected to the other candidate adjacent of distance between the base station of serving cell, then it is first lap adjacent area that the candidate adjacent, which is arranged, should
Sweeping middle cell is the second circle adjacent area, and the priority of first lap adjacent area is greater than the priority of the second circle adjacent area.
In one embodiment:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form company
Wiring；
Using base station location as origin, in the two sides of connecting line with preset angle scanning, if in the angular range
Middle cell is swept in interior presence, and distance is greater than the base of the candidate adjacent between the base station for sweeping middle cell and the base station of serving cell
It stands the distance between the base station of serving cell, and has in the angular range that be less than at a distance between the base station of serving cell should
Candidate adjacent to the other candidate adjacent of distance between the base station of serving cell, then it is first lap adjacent area that the candidate adjacent, which is arranged,
The other candidate adjacent is the second circle adjacent area, and it is third circle adjacent area that this, which sweeps middle cell, and the priority of first lap adjacent area is greater than
The priority of the priority of second circle adjacent area, the second circle adjacent area is greater than the priority of third circle adjacent area.
The determination method of first lap adjacent area, the second circle adjacent area and third circle adjacent area is described in detail above.Art technology
Personnel are not intended to limit the scope of protection of the present invention it is to be appreciated that this description is only exemplary.
Similarly, the adjacent area (if any) of more multi-turn number can be further determined that with identical principle, and encloses number
The priority of smaller adjacent area is higher.
The present invention is described in further detail with specific example below.Firstly, how exemplary illustrated delete according to cell direction
Except backwards to cell.
Fig. 2 is the schematic diagram of the half-power angle of serving cell according to the present invention and candidate adjacent.
Left half of main lobe direction and half-power angle schematic diagram for serving cell (it is assumed that corresponding to base station A) as shown in Figure 2；
Right half of main lobe direction and half-power angle schematic diagram for certain candidate adjacent (it is assumed that corresponding to base station B).
Firstly, serving cell and the main lobe direction of candidate adjacent are translated.Fig. 3 is serving cell according to the present invention and time
Adjacent area is selected to be directed toward the schematic diagram after translation.
As seen from Figure 3, serving cell and the candidate adjacent have main lobe direction angle (i.e. the main lobe direction of serving cell with
Angle between the main lobe direction of candidate adjacent), and serving cell and the half-power angle of the candidate adjacent have overlay region.Such as
Region corresponding to fruit main lobe direction angle is entirely located within half-power angle overlay region, then determining the candidate adjacent not is backwards
Cell determines candidate neighbour if region corresponding to main lobe direction angle is not entirely located within half-power angle overlay region
Area is and the candidate adjacent to be deleted in the candidate list of adjacent area backwards to cell.
As seen from Figure 3, serving cell and the main lobe direction angle of the candidate adjacent are entirely located in serving cell and the candidate
Between the half-power angle overlay region of adjacent area, therefore the candidate adjacent is not backwards to cell, then retaining in the candidate list of adjacent area should
Candidate adjacent.
Each candidate adjacent in the candidate list of adjacent area is screened according to above-mentioned decision procedure respectively, to be waited in adjacent area
It selects in list and removes backwards to cell.
Then, to by all candidate adjacents in the above-mentioned adjacent area candidate list filtered out, its priority is calculated separately
The factor, core concept are to choose which circle adjacent area candidate adjacent is located at, and priority is arranged to this circle adjacent area based on distance.It is adjacent
The concentration in area depends on an angle parameter α of user configuration.
Fig. 4 is the schematic diagram that the priority of candidate adjacent is calculated according to the present invention.
As shown in Figure 4, it is first determined the position of the base station A where serving cell.Prepare the time of determining priority for certain
Adjacent area D (it is assumed that the base station of the candidate adjacent is D) is selected, the base station A where serving cell is connected to form with base station D and is connect
Line.
Then, it using the base station location of serving cell as origin, is scanned in the two sides of connecting line with preset angle [alpha]；
If there are candidate adjacent E (its respective base station are base station E) in the scanning angle, and the distance of base station E to base station A is greater than base simultaneously
It stands the distance of D to base station A, and less than base station D to base station A in the scanning angle while without the distance between base station and base station A
The distance between, then base station D is first lap adjacent area, and base station E is the second circle adjacent area, and subsequent neighbour corresponding to the D of base station is arranged
The priority of area D is greater than the priority of subsequent adjacent area E corresponding to the E of base station.
Similarly, if there are candidate adjacent E (its respective base stations be base station E) in the scanning angle, and simultaneously base station E to base
The distance of A of standing is greater than the distance of base station D to base station A, and there are also the distance between base station F and the base station F A less than base station in the angle
Between D to base station A, then base station D is first lap adjacent area, and base station F is the second circle adjacent area；Base station E is third circle adjacent area.
Moreover, for the priority factors f (n) of n circle adjacent area are as follows: f (first lap adjacent area) > f (the second circle adjacent area) > f (third
Enclose adjacent area) > ... f (the n-th circle adjacent area), i.e. the priority of the smaller adjacent area of circle number is higher.
The value of variation based on specific requirements and application environment, angle [alpha] can change.For example, preferred angle alpha is 0
~60 degree.In fact, the value of angle [alpha] is also possible to other arbitrary values except the range, the present invention is to this and is not limited.
It in one embodiment, include co-sited cell in candidate list；This method further comprises:
Co-sited cell is arranged with highest priority in the neighboring cell list of the serving cell.
In one embodiment, comprising forcing cell in the candidate list of adjacent area；This method further comprises:
In the neighboring cell list of the serving cell, cell is forced to be only second to the priority setting of co-sited cell.
Wherein: co-sited cell refers to cell identical with the site position of serving cell；Cell is forced to refer to needing
The cell of adjacent area is mutually made into serving cell.
Finally, finally determining the neighboring cell list of serving cell, wherein co-sited cell according to priority and neighboring cell list number
Highest priority is finally other types of candidate adjacent secondly to force cell.
Specifically, guarantee that co-sited cell appears in final neighboring cell list first, and then guarantee that cell is forced to occur
In final neighboring cell list.After meeting for co-sited cell and forcing the above-mentioned condition of cell, then based on other candidate adjacent
The priority in area is aligned in final neighboring cell list according to the sequence of priority from big to small, wherein in final neighboring cell list
Adjacent area number is preset neighboring cell list number.Such as, it is assumed that the neighboring cell list number of certain serving cell is set as 18, and
And co-sited cell number is 3, respectively co-sited cell A, co-sited cell B and co-sited cell C；Forcing cell number is 5, is respectively forced
Cell D, cell E is forced, cell F is forced, cell G is forced and forces cell H.So, it in final neighboring cell list, preferably wraps
A containing co-sited cell, co-sited cell B and co-sited cell C, cell D is forced, cell E is forced, forces cell F, forces cell G and strong
Cell H processed.Remaining 10 adjacent areas in neighboring cell list, then the sequence according to priority from big to small, be never force cell or
It is chosen in the other types of cell of co-sited cell.
Indeed, it is possible to which embodiment of the present invention is applied in a plurality of types of mobile communication system.For example, of the invention
It can be adapted for second generation digital mobile communication technology mainly including GSM and narrowband CDMA technology, the present invention can also be applied
In with wideband code division multiple access (W-CDMA), overloading wavelength-division multiplexed spread spectrum modulates (CDMA2000) and Time division multiple access
It (TD-SCDMA) etc. is the third generation digital mobile communication technology of representative, it is logical that the present invention is apply equally as well to forth generation digital mobile
Letter technology etc., embodiment of the present invention is to this and is not limited.
In conclusion the method for adjacent section planning of the invention comprises determining that the adjacent area candidate list of serving cell；According to master
The cell backwards of the serving cell is deleted in valve angular separation in the adjacent area candidate list, and according in the adjacent area candidate list
Each remaining candidate adjacent determines the priority of each remaining candidate adjacent at a distance from serving cell；According to neighboring cell list
Number and the priority of each remaining candidate adjacent determine the neighbour of the serving cell from the adjacent area candidate list
Area's list.It can be seen that, independent of electronic map and propagation model, being fully considered after using embodiment of the present invention
The influence of distance and directional aerial deflection to adjacent section planning significantly improves adjacent area by defining the priority factors of adjacent area
The order of accuarcy of planning.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (3)
1. a kind of method of adjacent section planning, which is characterized in that this method comprises:
Determine the adjacent area candidate list of serving cell；
The cell backwards of the serving cell is deleted in the adjacent area candidate list according to main lobe direction angle, and according to the adjacent area
Each remaining candidate adjacent determines the priority of each remaining candidate adjacent at a distance from serving cell in candidate list；
According to neighboring cell list number and the priority of each remaining candidate adjacent, from the adjacent area candidate list really
The neighboring cell list of the fixed serving cell；
It is described that each remaining candidate neighbour is determined at a distance from serving cell according to residue cell each in the adjacent area candidate list
The priority in area includes:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form connection
Line；
Using base station location as origin, in the two sides of the connecting line with preset angle scanning, if in the angular range
Middle cell is swept in interior presence, and distance is greater than the base of the candidate adjacent between the base station for sweeping middle cell and the base station of serving cell
It stands the distance between the base station of serving cell, and has in the angular range that be less than at a distance between the base station of serving cell should
Candidate adjacent to the other candidate adjacent of distance between the base station of serving cell, then it is first lap adjacent area that the candidate adjacent, which is arranged,
The other candidate adjacent is the second circle adjacent area, and it is third circle adjacent area that this, which sweeps middle cell, and the priority of first lap adjacent area is greater than
The priority of the priority of second circle adjacent area, the second circle adjacent area is greater than the priority of third circle adjacent area；
Include co-sited cell and pressure cell in the adjacent area candidate list；This method further comprises:
Co-sited cell is arranged with highest priority in the neighboring cell list of the serving cell, to be only second to the priority of co-sited cell
Cell is forced in setting.
2. the method for adjacent section planning according to claim 1, which is characterized in that it is described according to main lobe direction angle described
The cell backwards of the serving cell is deleted in the candidate list of adjacent area, comprising:
The main lobe direction of candidate adjacent in serving cell and adjacent area candidate list is translated；
Region corresponding to the main lobe direction angle of detection service cell and the candidate adjacent and serving cell and the candidate adjacent
Half-power angle overlay region between relativeness, wherein if region corresponding to the main lobe direction angle is entirely located in institute
It states within half-power angle overlay region, then determining the candidate adjacent not is backwards to cell, if corresponding to the main lobe direction angle
Region be not entirely located within the half-power angle overlay region, then determine that the candidate adjacent is backwards to cell, and in the neighbour
The candidate adjacent is deleted in area's candidate list.
3. the method for adjacent section planning according to claim 1, which is characterized in that described according to each in the adjacent area candidate list
The priority that each remaining candidate adjacent is determined at a distance from serving cell of a remaining candidate adjacent includes:
It determines the base station location of serving cell, and the base station of the base station of serving cell and candidate adjacent is connected to form connection
Line；
Using the base station location of serving cell as origin, in the two sides of the connecting line with preset angle scanning, if
Exist in the angular range and sweep middle cell, and distance is greater than the time between the base station for sweeping middle cell and the base station of serving cell
Distance between the base station of adjacent area and the base station of serving cell is selected, and in the angular range not between the base station of serving cell
Distance be less than the candidate adjacent to the other candidate adjacent of distance between the base station of serving cell, then the candidate adjacent, which is arranged, is
First lap adjacent area, it is the second circle adjacent area that this, which sweeps middle cell, and the priority of first lap adjacent area is greater than the preferential of the second circle adjacent area
Grade.
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| CN105813096B (en) * | 2016-04-19 | 2019-02-05 | 普天信息工程设计服务有限公司 | The method for carrying out adjacent section planning optimization based on topological structure |
| CN106332136A (en) * | 2016-08-24 | 2017-01-11 | 上海华为技术有限公司 | Data processing method and wireless network controller |
| FI127189B (en) | 2016-11-15 | 2018-01-15 | Elisa Oyj | Procedure and device for planning mobile networks |
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| JPH09275584A (en) * | 1996-04-08 | 1997-10-21 | N T T Ido Tsushinmo Kk | Mobile communication network |
| CN101459916A (en) * | 2009-01-05 | 2009-06-17 | 普天信息技术研究院有限公司 | Method for determining priority of adjacent domain |
| CN102281546A (en) * | 2010-06-13 | 2011-12-14 | 中兴通讯股份有限公司 | Method and system for selecting candidate neighbor cells |
| CN102480767A (en) * | 2010-11-30 | 2012-05-30 | 普天信息技术研究院有限公司 | Establishment method of adjacent cell list |
| CN102572856A (en) * | 2010-12-22 | 2012-07-11 | 普天信息技术研究院有限公司 | Method and device for determining cell adjacent relation |
| CN102647725A (en) * | 2011-02-17 | 2012-08-22 | 中兴通讯股份有限公司 | Method and device for determining neighbor cell priority in neighbor cell planning |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036341B (en) * | 2010-12-20 | 2013-07-03 | 北京北方烽火科技有限公司 | Method and device for implementing cell blockage |
| EP2709397B1 (en) * | 2011-06-07 | 2017-11-01 | Huawei Technologies Co., Ltd. | Adjacent cell optimization method, base station and system |
| EP2645772B1 (en) * | 2012-03-30 | 2014-10-08 | ST-Ericsson SA | Neighboring cell measurements |
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- 2014-06-24 CN CN201410286291.5A patent/CN105228161B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09275584A (en) * | 1996-04-08 | 1997-10-21 | N T T Ido Tsushinmo Kk | Mobile communication network |
| CN101459916A (en) * | 2009-01-05 | 2009-06-17 | 普天信息技术研究院有限公司 | Method for determining priority of adjacent domain |
| CN102281546A (en) * | 2010-06-13 | 2011-12-14 | 中兴通讯股份有限公司 | Method and system for selecting candidate neighbor cells |
| CN102480767A (en) * | 2010-11-30 | 2012-05-30 | 普天信息技术研究院有限公司 | Establishment method of adjacent cell list |
| CN102572856A (en) * | 2010-12-22 | 2012-07-11 | 普天信息技术研究院有限公司 | Method and device for determining cell adjacent relation |
| CN102647725A (en) * | 2011-02-17 | 2012-08-22 | 中兴通讯股份有限公司 | Method and device for determining neighbor cell priority in neighbor cell planning |
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| CN105228161A (en) | 2016-01-06 |
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