CN105282752A - Adjacent cell selection method and system - Google Patents
Adjacent cell selection method and system Download PDFInfo
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- CN105282752A CN105282752A CN201410321778.2A CN201410321778A CN105282752A CN 105282752 A CN105282752 A CN 105282752A CN 201410321778 A CN201410321778 A CN 201410321778A CN 105282752 A CN105282752 A CN 105282752A
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- adjacent area
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Abstract
The invention discloses an adjacent cell selection method and a system. The method comprises the following steps of determining a first adjacent cell list of a service cell according to a distance of target cells and the service cell and positions of the target cells and the service cell, wherein the first adjacent cell list comprises the plurality of target cells; according to antenna types of the target cells in the first adjacent cell list, an antenna type of the service cell and priority factors of the target cells, sorting the target cells in the first adjacent cell list; according to an adjacent cell preset number, selecting the target cell with a high priority from the sorted first adjacent cell list and taking as the adjacent cell of the service cell. By using the method in the invention, an adjacent cell selection problem under a hybrid networking condition of an omnidirectional antenna and a directional antenna in actual network deployment is solved, and an important role is played in wireless network programming.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of adjacent area choosing method and system.
Background technology
The wireless network planning of mobile communication moves very important part in networking when working, adjacent section planning is link very important in wireless network planning, adjacent section planning plays very important meaning, the performance that whether rationally directly affects network of adjacent section planning to keeping the continuity of communication.
Adjacent section planning mode of the prior art is generally carry out for when directional antenna networking, if when directional antenna and omnidirectional antenna mixed networking, then and the problem that the mode of existing adjacent section planning cannot be adopted to realize adjacent area choose.
Summary of the invention
For defect of the prior art, the invention provides a kind of adjacent area choosing method and system, the adjacent area achieved based on different antennae type is chosen.
First aspect, the invention provides a kind of method that adjacent area is chosen, the method comprises:
According to distance and the position of Target cell and Serving cell, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
According to the antenna type of Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, is sorted in each Target cell in described first Neighboring Cell List;
From the first Neighboring Cell List after sequence, the adjacent area of the high Target cell of priority as described Serving cell is chosen according to adjacent area preset number.
Optionally, the described distance according to Target cell and Serving cell and position, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell, comprising:
According to distance and the position of described Target cell and described Serving cell, determine that the position at the place of adjacent area is enclosed in the first lap adjacent area of described Serving cell to N; The distance of described first lap adjacent area and described Serving cell is less than the distance that described N encloses adjacent area and described Serving cell;
The band of position at place, described first lap community is provided with at least one Target cell, and the band of position that described N encloses place, adjacent area is provided with at least one another Target cell;
First lap is generated the first Neighboring Cell List of described Serving cell to the N all Target cells enclosed in adjacent area.
Optionally, the described distance according to Target cell and Serving cell and position, determine that the position at the place of adjacent area is enclosed in the first lap adjacent area of Serving cell to N, comprising:
The first object community that Serving cell described in selected distance is nearest, by the site phase line of described first object community with described Serving cell, and judge with described Serving cell as axle, whether described line is existed the second Target cell clockwise or in the first predetermined angle be rotated counterclockwise;
If there is the second Target cell in described first predetermined angle, and described second Target cell is greater than the distance of described first object community to described Serving cell to the distance of described Serving cell, then using the region at place, described first object community as first lap adjacent area;
If in described first predetermined angle between the second Target cell and first object community without other Target cells, then using the region at described second place, Target cell as second circle adjacent area.
Optionally, the described antenna type according to Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, sort each Target cell in described first Neighboring Cell List, comprising:
According to the antenna type of each Target cell in described first Neighboring Cell List and the antenna type of described Serving cell, determining the priority factors of described Target cell, sorts in each Target cell in described first Neighboring Cell List by the priority factors according to described Target cell.
Optionally, according to the antenna type of Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, is sorted in each Target cell in described first Neighboring Cell List, comprising:
Determine the antenna type of the antenna type of the Target cell in first lap adjacent area, described Serving cell, determine the priority factors of the Target cell in described first lap adjacent area according to the antenna type of Target cell in described first lap adjacent area and the antenna type of described Serving cell;
And, determine that N encloses the antenna type of Target cell, the antenna type of described Serving cell in adjacent area, according to the antenna type of Target cell in described N circle adjacent area, the antenna type of Serving cell determines that described N encloses the priority factors of the Target cell in adjacent area;
According to the priority factors of the Target cell in described first adjacent area, N encloses the priority factors of the Target cell in adjacent area, is sorted each Target cell in described first Neighboring Cell List.
Optionally, describedly determine the antenna type of the Target cell in first lap adjacent area, the antenna type of described Serving cell, according to the antenna type of Target cell in described first lap adjacent area, the antenna type of Serving cell determines the priority factors of the Target cell in described first lap adjacent area, is specially:
Antenna type in described Serving cell is omnidirectional antenna, when the antenna type belonging to the Target cell in first lap adjacent area is directional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of the described Target cell in described first lap adjacent area, described Target cell then in described first lap adjacent area is the first priority, if within the scope of the forward of the described Target cell of described line not in described first lap adjacent area, then described adjacent cell is the second priority;
Antenna type in described Serving cell is directional antenna, when the antenna type belonging to the Target cell in first lap adjacent area is omnidirectional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of described Serving cell, described Target cell then in described first lap adjacent area is the first priority, if described line is not within the scope of the forward of described Serving cell, then the described Target cell in described first lap adjacent area is the second priority;
When antenna type in described Serving cell is directional antenna with the antenna type belonging to the Target cell described in first lap adjacent area,
By the site phase line of described Serving cell with the Target cell in described first lap adjacent area;
The main lobe direction of described Serving cell and the angle of described line are β
0, the main lobe direction of the described Target cell in described first lap adjacent area and the angle of described line are β
1, wherein, 0≤β
0≤ 180 and 0≤β
1≤ 180;
If described angle β
0with described angle β
1, all drop on [0, β] or (β, 180] time, then the described Target cell in described first lap adjacent area is the first priority; If described angle β
0with described angle β
1, drop on respectively [0, β] and (β, 180] time, then the described Target cell in described first lap adjacent area is the second priority, and described β is the 3rd predetermined angle;
When antenna type in described Serving cell is omnidirectional antenna with the antenna type of the Target cell belonged in first lap adjacent area,
Then the Target cell described in described first lap adjacent area is the first priority.
Wherein, the forward scope of described adjacent cell be along described adjacent cell main lobe direction clockwise or the region be rotated counterclockwise within the scope of the second predetermined angle.
Optionally, the antenna type of Serving cell described in the described antenna type enclosing Target cell in adjacent area according to described N determines with the antenna type of described Serving cell according to the antenna type of Target cell in described first lap adjacent area, the method for the priority factors of the Target cell in described N circle adjacent area determines that the method for the priority factors of the Target cell in described first lap adjacent area is identical.
Optionally, the adjacent area of described Serving cell also comprises pressure community and co-sited community;
The priority of described co-sited community is the highest, and the priority of described pressure community is lower than the priority of described co-sited community;
After the priority of the Target cell in described first Neighboring Cell List is sequentially arranged in described co-sited community and described pressure community.
Optionally, described according to adjacent area preset number from sequence after the first Neighboring Cell List choose the high Target cell of priority as the adjacent area of described Serving cell, comprising:
Sorted according to the priority in Target cell in described first Neighboring Cell List, the priority of the Target cell in described first lap adjacent area is greater than the priority that described N encloses the Target cell in adjacent area, and the priority sequence of the Target cell in described first lap adjacent area is that described first priority is higher than described second priority;
The adjacent area of described Serving cell is determined according to the number of described order and default Neighboring Cell List.
On the other hand, the invention provides the system that a kind of adjacent area is chosen, this system comprises: adjacent area unit to be confirmed, priority of adjacent domain judging unit and adjacent area confirmation unit;
Described adjacent area unit to be confirmed, for according to the distance of Target cell and Serving cell and position, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
Described priority of adjacent domain judging unit, for the antenna type according to Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, sorts each Target cell in described first Neighboring Cell List;
Described adjacent area confirmation unit, for choosing the adjacent area of the high Target cell of priority as described Serving cell according to adjacent area preset number from the first Neighboring Cell List after sequence.
As shown from the above technical solution, the present invention proposes a kind of adjacent area choosing method and system, by obtaining the Neighboring Cell List of Serving cell, and determine the priority of the Target cell in Neighboring Cell List, and then using the adjacent area of Target cell high for priority as Serving cell, this method solve in real network deployment, based on the adjacent area On The Choice under omnidirectional antenna and directional antenna mixed networking situation, in wireless network planning, play important effect.
Accompanying drawing explanation
Fig. 1 is the adjacent area choosing method flow chart that one embodiment of the invention is mentioned;
Fig. 2 is the determination Neighboring Cell List process schematic that one embodiment of the invention is mentioned;
The schematic diagram of the acquisition native region priority factor that Fig. 3 A provides for one embodiment of the invention;
The schematic diagram of the acquisition native region priority factor that Fig. 3 B provides for another embodiment of the present invention;
The schematic diagram of the acquisition native region priority factor that Fig. 3 C provides for another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Fig. 1 shows the schematic diagram of a kind of adjacent area choosing method present embodiments provided, and as shown in Figure 1, the method comprises the steps:
101, according to distance and the position of Target cell and Serving cell, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
For example, above-mentioned steps 101 can be specially: according to distance and the position of described Target cell and described Serving cell, determines that the position at the place of adjacent area is enclosed in the first lap adjacent area of described Serving cell to N; The distance of described first lap adjacent area and described Serving cell is less than the distance that described N encloses adjacent area and described Serving cell; The band of position at place, described first lap community is provided with at least one Target cell, and the band of position that described N encloses place, adjacent area is provided with at least one another Target cell; First lap is generated the first Neighboring Cell List of described Serving cell to all Target cells that N encloses in adjacent area, N be more than or equal to 1 positive integer, N is generally 2 or 3
In the present embodiment, determine that the mode of the first Neighboring Cell List can not limit aforesaid way, the present embodiment is only and illustrates.
102, according to the antenna type of Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, is sorted in each Target cell in described first Neighboring Cell List;
For example, above-mentioned steps 102 also can comprise following sub-step:
1021, determine the antenna type of the antenna type of the Target cell in first lap adjacent area, described Serving cell, determine the priority factors of the Target cell in described first lap adjacent area according to the antenna type of Target cell in described first lap adjacent area and the antenna type of described Serving cell;
1022, determine that N encloses the antenna type of Target cell, the antenna type of described Serving cell in adjacent area, according to the antenna type of Target cell in described N circle adjacent area, the antenna type of Serving cell determines that described N encloses the priority factors of the Target cell in adjacent area;
1023, according to the priority factors of the Target cell in described first adjacent area, N encloses the priority factors of the Target cell in adjacent area, is sorted each Target cell in described first Neighboring Cell List.
103, from the first Neighboring Cell List after sequence, the adjacent area of the high Target cell of priority as described Serving cell is chosen according to adjacent area preset number.
Wherein, the adjacent area of described Serving cell also comprises pressure community and co-sited community; The priority of described co-sited community is the highest, and the priority of described pressure community is lower than the priority of described co-sited community; After the priority of the Target cell in described first Neighboring Cell List is sequentially arranged in described co-sited community and described pressure community.
Sorted according to the priority in Target cell in described first Neighboring Cell List, the priority of the Target cell in described first lap adjacent area is greater than the priority that described N encloses the Target cell in adjacent area, and the priority sequence of the Target cell in described first lap adjacent area is that described first priority is higher than described second priority;
The adjacent area of described Serving cell is determined according to the number of described order and default Neighboring Cell List.
Thus, said method solves in real network deployment, based on the adjacent area On The Choice under omnidirectional antenna and directional antenna mixed networking situation, plays important effect in wireless network planning.
Fig. 2 shows the determination Neighboring Cell List process schematic that the embodiment of the present invention is mentioned, as shown in Figure 2, enclose the mode determination Neighboring Cell List of the Target cell in adjacent area particular by the Target cell arranged in first lap adjacent area and N in abovementioned steps 101, for the Target cell in clearer explanation first lap adjacent area, the base station D of the first object community that the base station A of Serving cell described in selected distance is nearest, by the site phase line of the base station D of described first object community with the base station A of described Serving cell, and judge with described Serving cell as axle, by described line clockwise or in the first predetermined angle be rotated counterclockwise, whether there is the base station E of the second Target cell, in the embodiment of the present invention, the dense degree of adjacent area depends on user configured first predetermined angle parameter alpha, and α is relevant with the dense degree of each base station spacing and adjacent area, and span is (0,60).
If described first predetermined angle (0,60) there is the base station E of the second Target cell in scope, and the base station E of described second Target cell to described Serving cell base station A between the distance base station D that is greater than described first object community to described Serving cell base station A between distance, then using the solid circles in the region at the D place, base station of described first object community and Fig. 2 as first lap adjacent area;
If in described first predetermined angle (0,60) scope between the base station E of the second Target cell and the base station D of first object community without other Target cells, then using the region at the E place, base station of described second Target cell and dotted line circle as the second circle adjacent area.
To sum up, adopt the method to choose adjacent area, relative to additive method, adopt the method more accurate, easily and fast target adjacent area is selected, save a large amount of spendings.
Determine that priority factors is as shown in Figure 3A, for example, the antenna type in described Serving cell is omnidirectional antenna, and when the antenna type belonging to the multiple Target cells in first lap adjacent area is directional antenna, the decision rule of concrete priority is:
By the site phase line of described Serving cell 1 with the Target cell 2,3,4 in described first lap adjacent area;
If described line drops within the scope of the forward of the described Target cell in described first lap adjacent area, then the described Target cell in described first lap adjacent area is the first priority, the Target cell 2 namely in figure; If within the scope of the forward of the described Target cell of described line not in described first lap adjacent area, then described adjacent cell is the Target cell 3 and 4 in the second priority and figure; Wherein, the forward scope of described adjacent cell be along described adjacent cell main lobe direction clockwise or the region be rotated counterclockwise within the scope of the second predetermined angle, as shown in the figure, this forward scope angle is relevant with the gain diagram of directional antenna, span is (0,100).
As shown in Figure 3 B, for example, the antenna type in described Serving cell is directional antenna, when the antenna type belonging to the multiple Target cells in first lap adjacent area is omnidirectional antenna,
By the site phase line of described Serving cell 2 with the Target cell 1 and 4 described in described first lap adjacent area;
If described line drops within the scope of the forward of described Serving cell, described Target cell then in described first lap adjacent area is the Target cell 1 in the first priority and figure, if described line is not within the scope of the forward of described Serving cell, described Target cell then in described first lap adjacent area is the Target cell 4 in the second priority and figure, wherein, the forward scope of described adjacent cell be along described adjacent cell main lobe direction clockwise or the region be rotated counterclockwise within the scope of the second predetermined angle, as shown in the figure, this forward scope angle is relevant with the gain diagram of directional antenna, span is (0, 100).
As shown in Figure 3 C, for example, when the antenna type in described Serving cell is directional antenna with the antenna type belonging to the multiple Target cells described in first lap adjacent area,
By the site phase line of described Serving cell 2 with the Target cell 5,6,7 in described first lap adjacent area;
The main lobe direction of described Serving cell 2 and the angle of described line are β
0, described Target cell 5 is β with the angle of described line
1, described Target cell 6 is β with the angle of described line
2, wherein, 0≤β
0≤ 180,0≤β
1≤ 180,0≤β
2≤ 180;
If described angle β
0, described angle β
1with described angle β
2, all drop on [0, β] or (β, 180] time, when β gets 90 degree, then the Target cell in described first lap adjacent area is the Target cell 5 in the first priority and figure; If described angle β
0, described angle β
1with described angle β
2drop on [0 respectively, β] and (β, 180] time, when β gets 90 degree, Target cell then in described first lap adjacent area is the community 6 in the second priority and figure, described β is the 3rd predetermined angle, can not be the limiting value in [0,180], according to different situations, β can be adjusted.
When antenna type in described Serving cell is omnidirectional antenna with the antenna type of the multiple Target cells belonged in first lap adjacent area,
Then the multiple Target cells described in described first lap adjacent area are the first priority.
To sum up, adopt the method to choose adjacent area, solve in real network deployment, based on the adjacent area On The Choice under omnidirectional antenna and directional antenna mixed networking situation, in wireless network planning, play important effect.
Alternatively, the step 103 shown in earlier figures 1 can specific as followsly illustrate: when determining the adjacent area of Serving cell, it should be noted that and needs first forcing community and co-sited community to be classified as in the preset number of adjacent area.Namely determine that the adjacent area of Serving cell comprises co-sited community, forces community and according to the determined Target cell of above-described embodiment.
Usually, if when there is co-sited community and force community in the adjacent area of Serving cell, then can directly using co-sited community with force community as the adjacent area of Serving cell when choosing the adjacent area of this Serving cell, and then the Target cell in the adjacent cell and the embodiment of the present invention of Serving cell adopts the method shown in earlier figures 1 to choose.
Wherein co-sited community refers to the community that position, site is identical, and force community to refer to the community needing interworking to become adjacent area, Target cell is the community in position with Serving cell with some rule relation.
To when choosing the adjacent area of the high Target cell of priority as described Serving cell according to adjacent area preset number from the first Neighboring Cell List after sequence, because the priority of described co-sited community is the highest, the priority of described pressure community is lower than the priority of described co-sited community; After the priority of the Target cell in described first Neighboring Cell List is sequentially arranged in described co-sited community and described pressure community.
Sorted according to the priority in Target cell in described first Neighboring Cell List, the priority of the Target cell in described first lap adjacent area is greater than the priority that described N encloses the Target cell in adjacent area, and the priority sequence of the Target cell in described first lap adjacent area is that described first priority is higher than described second priority; If when preset number is enough, but the Target cell of the Target cell of the first priority or the second priority still has surplus, the Target cell of the Target cell or the second priority that are then positioned at the first priority there is no precedence relationship, carries out Stochastic choice.In particular cases, just may occur that preset number is less than the situation of the number of the community in the first Neighboring Cell List.
On the other hand, present invention also offers a kind of adjacent area selecting system, this system comprises: adjacent area unit to be confirmed, priority of adjacent domain judging unit and adjacent area confirmation unit;
Described adjacent area unit to be confirmed, for according to the distance of Target cell and Serving cell and position, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
Described priority of adjacent domain judging unit, for the antenna type according to Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, sorts each Target cell in described first Neighboring Cell List;
Described adjacent area confirmation unit, for choosing the adjacent area of the high Target cell of priority as described Serving cell according to adjacent area preset number from the first Neighboring Cell List after sequence.
In a particular application, described adjacent area unit to be confirmed, specifically for according to the distance of described Target cell and described Serving cell and position, can determine that the position at the place of adjacent area is enclosed in the first lap adjacent area of described Serving cell to N; The distance of described first lap adjacent area and described Serving cell is less than the distance that described N encloses adjacent area and described Serving cell;
The band of position at place, described first lap community is provided with at least one Target cell, and the band of position that described N encloses place, adjacent area is provided with at least one another Target cell; The antenna type of described Target cell does not limit, such as: the antenna type in first lap Target cell has following situation: the Target cell of non-directional antenna type, without omnidirectional antenna type Target cell or both comprised the Target cell of omnidirectional antenna type and the Target cell of directional antenna type.
First lap is generated the first Neighboring Cell List of described Serving cell to the N all Target cells enclosed in adjacent area.
Alternatively, described priority of adjacent domain judging unit, for according to the antenna type of each Target cell in described first Neighboring Cell List and the antenna type of described Serving cell, determining the priority factors of described Target cell, sorts in each Target cell in described first Neighboring Cell List by the priority factors according to described Target cell.
Optionally, described adjacent area confirmation unit is omnidirectional antenna for the antenna type in described Serving cell, when the antenna type belonging to the Target cell in first lap adjacent area is directional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of the described Target cell in described first lap adjacent area, described Target cell then in described first lap adjacent area is the first priority, if within the scope of the forward of the described Target cell of described line not in described first lap adjacent area, then described adjacent cell is the second priority;
Antenna type in described Serving cell is directional antenna, when the antenna type belonging to the Target cell in first lap adjacent area is omnidirectional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of described Serving cell, described Target cell then in described first lap adjacent area is the first priority, if described line is not within the scope of the forward of described Serving cell, then the described Target cell in described first lap adjacent area is the second priority;
When antenna type in described Serving cell is directional antenna with the antenna type belonging to the Target cell described in first lap adjacent area,
By the site phase line of described Serving cell with the Target cell in described first lap adjacent area;
The main lobe direction of described Serving cell and the angle of described line are β
0, the main lobe direction of the described Target cell in described first lap adjacent area and the angle of described line are β
1, wherein, 0≤β
0≤ 180 and 0≤β
1≤ 180;
If described angle β
0with described angle β
1, all drop on [0, β] or (β, 180] time, then the described Target cell in described first lap adjacent area is the first priority; If described angle β
0with described angle β
1, drop on respectively [0, β] and (β, 180] time, then the described Target cell in described first lap adjacent area is the second priority, and described β is the 3rd predetermined angle;
When antenna type in described Serving cell is omnidirectional antenna with the antenna type of the Target cell belonged in first lap adjacent area,
Then the Target cell described in described first lap adjacent area is the first priority.
Wherein, the forward scope of described adjacent cell be along described adjacent cell main lobe direction clockwise or the region be rotated counterclockwise within the scope of the second predetermined angle.
The above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an adjacent area choosing method, is characterized in that, the method comprises:
According to distance and the position of Target cell and Serving cell, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
According to the antenna type of Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, is sorted in each Target cell in described first Neighboring Cell List;
From the first Neighboring Cell List after sequence, the adjacent area of the high Target cell of priority as described Serving cell is chosen according to adjacent area preset number.
2. the method for claim 1, is characterized in that, the described distance according to Target cell and Serving cell and position, and determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell, comprising:
According to distance and the position of described Target cell and described Serving cell, determine that the position at the place of adjacent area is enclosed in the first lap adjacent area of described Serving cell to N; The distance of described first lap adjacent area and described Serving cell is less than the distance that described N encloses adjacent area and described Serving cell;
The band of position at place, described first lap community is provided with at least one Target cell, and the band of position that described N encloses place, adjacent area is provided with at least one another Target cell;
First lap is generated the first Neighboring Cell List of described Serving cell to the N all Target cells enclosed in adjacent area.
3. method as claimed in claim 2, is characterized in that, the described distance according to Target cell and Serving cell and position, determines the position of the first lap adjacent area of Serving cell to the place of N circle adjacent area, comprising:
The first object community that Serving cell described in selected distance is nearest, by the site phase line of described first object community with described Serving cell, and judge with described Serving cell as axle, whether described line is existed the second Target cell clockwise or in the first predetermined angle be rotated counterclockwise;
If there is the second Target cell in described first predetermined angle, and described second Target cell is greater than the distance of described first object community to described Serving cell to the distance of described Serving cell, then using the region at place, described first object community as first lap adjacent area;
If in described first predetermined angle between the second Target cell and first object community without other Target cells, then using the region at described second place, Target cell as second circle adjacent area.
4. the method for claim 1, it is characterized in that, the described antenna type according to Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, sort each Target cell in described first Neighboring Cell List, comprising:
According to the antenna type of each Target cell in described first Neighboring Cell List and the antenna type of described Serving cell, determining the priority factors of described Target cell, sorts in each Target cell in described first Neighboring Cell List by the priority factors according to described Target cell.
5. method as claimed in claim 4, it is characterized in that, according to the antenna type of Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, is sorted in each Target cell in described first Neighboring Cell List, comprising:
Determine the antenna type of the antenna type of the Target cell in first lap adjacent area, described Serving cell, determine the priority factors of the Target cell in described first lap adjacent area according to the antenna type of Target cell in described first lap adjacent area and the antenna type of described Serving cell;
And, determine that N encloses the antenna type of Target cell, the antenna type of described Serving cell in adjacent area, according to the antenna type of Target cell in described N circle adjacent area, the antenna type of Serving cell determines that described N encloses the priority factors of the Target cell in adjacent area;
According to the priority factors of the Target cell in described first adjacent area, N encloses the priority factors of the Target cell in adjacent area, and sorted each Target cell in described first Neighboring Cell List, N is positive integer.
6. method as claimed in claim 5, it is characterized in that, describedly determine the antenna type of the Target cell in first lap adjacent area, the antenna type of described Serving cell, according to the antenna type of Target cell in described first lap adjacent area, the antenna type of Serving cell determines the priority factors of the Target cell in described first lap adjacent area, is specially:
Antenna type in described Serving cell is omnidirectional antenna, when the antenna type belonging to the Target cell in first lap adjacent area is directional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of the described Target cell in described first lap adjacent area, described Target cell then in described first lap adjacent area is the first priority, if within the scope of the forward of the described Target cell of described line not in described first lap adjacent area, then described adjacent cell is the second priority;
Antenna type in described Serving cell is directional antenna, when the antenna type belonging to the Target cell in first lap adjacent area is omnidirectional antenna,
By the site phase line of described Serving cell with the Target cell described in described first lap adjacent area;
If described line drops within the scope of the forward of described Serving cell, described Target cell then in described first lap adjacent area is the first priority, if described line is not within the scope of the forward of described Serving cell, then the described Target cell in described first lap adjacent area is the second priority;
When antenna type in described Serving cell is directional antenna with the antenna type belonging to the Target cell described in first lap adjacent area,
By the site phase line of described Serving cell with the Target cell in described first lap adjacent area;
The main lobe direction of described Serving cell and the angle of described line are β
0, the main lobe direction of the described Target cell in described first lap adjacent area and the angle of described line are β
1, wherein, 0≤β
0≤ 180 and 0≤β
1≤ 180;
If described angle β
0with described angle β
1, all drop on [0, β] or (β, 180] time, then the described Target cell in described first lap adjacent area is the first priority; If described angle β
0with described angle β
1, drop on respectively [0, β] and (β, 180] time, then the described Target cell in described first lap adjacent area is the second priority, and described β is the 3rd predetermined angle;
When antenna type in described Serving cell is omnidirectional antenna with the antenna type of the Target cell belonged in first lap adjacent area,
Then the Target cell described in described first lap adjacent area is the first priority.
Wherein, the forward scope of described adjacent cell be along described adjacent cell main lobe direction clockwise or the region be rotated counterclockwise within the scope of the second predetermined angle.
7. method as claimed in claim 6, it is characterized in that, the antenna type of Serving cell described in the described antenna type enclosing Target cell in adjacent area according to described N determines with the antenna type of described Serving cell according to the antenna type of Target cell in described first lap adjacent area, the method for the priority factors of the Target cell in described N circle adjacent area determines that the method for the priority factors of the Target cell in described first lap adjacent area is identical.
8. the method for claim 1, is characterized in that, the adjacent area of described Serving cell also comprises forces community and co-sited community;
The priority of described co-sited community is the highest, and the priority of described pressure community is lower than the priority of described co-sited community;
After the priority of the Target cell in described first Neighboring Cell List is sequentially arranged in described co-sited community and described pressure community.
9. method as claimed in claim 8, is characterized in that, describedly from the first Neighboring Cell List after sequence, chooses the high Target cell of priority as the adjacent area of described Serving cell according to adjacent area preset number, comprising:
Sorted according to the priority in Target cell in described first Neighboring Cell List, the priority of the Target cell in described first lap adjacent area is greater than the priority that described N encloses the Target cell in adjacent area, and the priority sequence of the Target cell in described first lap adjacent area is that described first priority is higher than described second priority;
The adjacent area of described Serving cell is determined according to the number of described order and default Neighboring Cell List.
10. an adjacent area selecting system, is characterized in that, this system comprises: adjacent area unit to be confirmed, priority of adjacent domain judging unit and adjacent area confirmation unit;
Described adjacent area unit to be confirmed, for according to the distance of Target cell and Serving cell and position, determine the first Neighboring Cell List of described Serving cell, described first Neighboring Cell List comprises multiple Target cell;
Described priority of adjacent domain judging unit, for the antenna type according to Target cell in described first Neighboring Cell List, the antenna type of described Serving cell and the priority factors of Target cell, sorts each Target cell in described first Neighboring Cell List;
Described adjacent area confirmation unit, for choosing the adjacent area of the high Target cell of priority as described Serving cell according to adjacent area preset number from the first Neighboring Cell List after sequence.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108848539A (en) * | 2018-07-05 | 2018-11-20 | 中国联合网络通信集团有限公司 | The method and apparatus of Neighborhood Optimization |
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| KR20070122044A (en) * | 2006-06-23 | 2007-12-28 | 재단법인서울대학교산학협력재단 | Multiple transmitting and receiving antennas apparatus in multi-user multi-cell environments and method thereof |
| KR20080021973A (en) * | 2006-09-05 | 2008-03-10 | 엘지전자 주식회사 | A mobile terminal and a digital broadcast frequency tuning method |
| TW201406176A (en) * | 2012-07-20 | 2014-02-01 | Chunghwa Telecom Co Ltd | Selection method of neighboring cells for inter-system handoff in mobile communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20070122044A (en) * | 2006-06-23 | 2007-12-28 | 재단법인서울대학교산학협력재단 | Multiple transmitting and receiving antennas apparatus in multi-user multi-cell environments and method thereof |
| KR20080021973A (en) * | 2006-09-05 | 2008-03-10 | 엘지전자 주식회사 | A mobile terminal and a digital broadcast frequency tuning method |
| TW201406176A (en) * | 2012-07-20 | 2014-02-01 | Chunghwa Telecom Co Ltd | Selection method of neighboring cells for inter-system handoff in mobile communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108848539A (en) * | 2018-07-05 | 2018-11-20 | 中国联合网络通信集团有限公司 | The method and apparatus of Neighborhood Optimization |
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