CN102547755B - Network topology planning method and device - Google Patents
Network topology planning method and device Download PDFInfo
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- CN102547755B CN102547755B CN201010612004.7A CN201010612004A CN102547755B CN 102547755 B CN102547755 B CN 102547755B CN 201010612004 A CN201010612004 A CN 201010612004A CN 102547755 B CN102547755 B CN 102547755B
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Abstract
The invention discloses a network topology planning method and a network topology planning device, which solve the problems of incapability of performing automatic topology planning on topological network elements with different capacities and incapability of automatically planning network elements with the same capacity in a differentiation mode. The method comprises the following steps of: when the capacity of a polygon is in a preset range, taking the polygon as a determined planning region; when the capacity of the polygon is lower than the lower limit of the preset range, taking the polygon as a first region, and performing the next step until a second region is determined as the determined planning region when the capacity of the second region is in the preset range; selecting the polygon from adjacent polygons in the first region, and adding the polygon into the first region to generate the second region, wherein the second region and the polygon which is not added into the second region have the lowest correlation degree relative to the correlation degree between a third region which is formed by adding the polygon outside a first base station covered polygon into the first region and the polygon which is not added into the third region; and determining the second region as the first region.
Description
Technical field
The present invention relates to mobile communication technology field, relate in particular to a kind of network topology planning method and device.
Background technology
Network topology planning is a kind ofly to take that to optimize topological network element border, balancing network load, reduce network signal etc. be the technology of target, and existing network topology planning is mainly to realize by the mode that craft is planned or semi-hand is planned.The mode of manual planning or semi-hand planning is mainly artificial calculating and the analysis that depends on planning personnel, and adopts the aid platform of similar MapInfo, by planning personnel's continuous trial, plans.
For example, in prior art, if (the MSC of Yao Duiyige mobile switching centre, Mobile Switching Center) base station controller (BSC in region, Base Station Center) administrative area is repartitioned, make to reach balanced between carrier frequency (TRX) quantity of each BSC region as far as possible, need to carry out following step:
Step 1: utilize aforementioned aid platform MapInfo, according to the latitude and longitude coordinates of base station, describe each position, base station on map.Be as shown in Figure 1 the schematic diagram of the position, base station that MapInfo describes.Dark circles form point in figure represents each base station, the road on curve table pictorial map.In actual applications, base station number is often very huge, for convenience of description, has only drawn a small amount of base station as signal herein.
Step 2: planning personnel manually sketches the contours respectively and comprises a plurality of base stations at interior a plurality of polygons, and using a plurality of base stations that arbitrary polygon comprises as a corresponding base station that BSC was controlled.Wherein, this comprises a plurality of base stations and at an interior polygonal region, can be described as an area to be planned of BSC.A plurality of polygonal schematic diagram of sketching the contours of please refer to Fig. 2, for convenience of description, has saved the road on map in Fig. 2, in order to avoid obscure mutually with polygonal limit.
Step 3: utilize the SQL query of MapInfo, determine respectively the TRX sum of the base station that each polygon comprises, obtain table 1 as follows:
Table 1:
| The TRX sum of the base station comprising | Polygon sign |
| 121 | R0821 |
| 144 | R1201 |
| 132 | R1206 |
| 129 | R1205 |
| … | … |
Step 4: judge whether the base station TRX sum that each polygon comprises meets within the scope of default number (this scope is generally the comparatively balanced scope of base station TRX that each polygon is comprised), if the base station TRX sum that has the polygon of some to comprise is too much or very few, need to jump to step 2 and carry out polygonal repartitioning, until the base station TRX that each polygon comprises respectively sum meets within the scope of default number.If met within the scope of default number and judge the base station TRX sum that each polygon comprises, process ends.
Above-mentionedly for adopting the mode of manual planning to realize network topology planning, adopt the mode of semi-hand planning similar to the above, just in above-mentioned steps two, three, adopted some auxiliary controls to realize polygon and sketched the contours the real-time calculating with TRX sum.
The defect that the mode that adopts manual planning or semi-hand to plan realizes network topology planning is:
The quality of network topology planning and planning personnel's level and empirical relation are very large, cause the quality of network topology planning cannot obtain Reliable guarantee; In order to seek best network topology programme, can only ceaselessly carry out manual trial, yet be limited to, craft is planned or the mode number of attempt of semi-hand planning is limited, is still difficult to obtain best network topology programme.
In prior art, also there is scheme to propose a kind of mode of automatic planning network topology, can automatically realize network topology planning.But this scheme can only be done at present and divide network topology into identical several equal portions areas to be planned.For example, the base station in a MSC area is divided into equably to approximately equal 4 equal portions, 5 equal portions or the 6 equal portions areas to be planned of TRX sum that comprise respectively.Yet in actual applications, situation about often occurring is the base station in a MSC area need to be divided in an inhomogeneous N area to be planned, and require the load percentage of N area to be planned substantially identical.For example, in a MSC area, comprise 6 BSC, the maximum TRX capacity of these 6 BSC is respectively: 2000,1000,384,384,384,384, in supposing the system, have 2730 TRX and need to be planned in these 6 BSC regions, and require 60% left and right that the actual TRX capacity of each BSC is its maximum TRX capacity.Obviously, the TRX that the base station in the different areas to be planned that now final planning obtains comprises is no longer uniformly, but quantitatively has bigger difference.Under these circumstances, the network topology providing in prior art plans that automatic implementation is owing to can only accomplishing that the topological network element for capacity indifference carries out network topology planning, therefore, cannot meet for the network topology of the discrepant topological network element of capacity and plan such demand, and can only continue to carry out network topology planning by the mode that craft is planned or semi-hand is planned.
Summary of the invention
The embodiment of the present invention provides a kind of network topology planning method and device, in order to the scheme that adopts prior art to provide to be provided, cannot automatically carry out the problem of network topology planning for the discrepant topological network element of capacity.
The embodiment of the present invention is by the following technical solutions:
A network topology planning method, for each topological network element in planning to be allocated region, carry out respectively following step:
Choose and do not add a base station determining planning region to cover polygon;
This base station of relatively choosing covers capacity and the preset capacity scope of polygonal allocated resource;
At comparative result, be that this base station of choosing is while covering polygonal described capacity in preset capacity scope, this base station is covered to polygon and be defined as this topology network element partition territory of really establishing rules, and be that this base station of choosing covers polygonal described capacity and is less than under preset capacity scope in limited time at comparative result, this base station is covered to polygon as the first area to be planned, and following step is carried out in circulation, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from described adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, the degree of association that does not add all base stations of the second area to be planned to cover between the area to be planned that polygons form in the second area to be planned and network topology is minimum, and
The second area to be planned is defined as to the first area to be planned.
A network topology device for planning, comprising:
Choose unit, for the arbitrary topological network element of each the topological network element for planning to be allocated region, choose not join and determine that a base station in planning region covers polygon; Comparing unit, covers capacity and the preset capacity scope of polygonal allocated resource for relatively choosing this base station of unit selection; The first allocation units, for comparing capacity that this base station covers polygonal allocated resource at comparing unit when the preset capacity scope, cover polygon by this base station of choosing unit selection and are defined as this topology network element partition territory of really establishing rules; Determining unit, is less than under preset capacity scope in limited time for compare capacity that this base station covers polygonal allocated resource at comparing unit, and this base station of choosing unit selection is covered to polygon as the first area to be planned; The second allocation units, for the first area to be planned circulation of determining for determining unit, carry out following step, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from described adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, in the second area to be planned and network topology, not adding all base stations of the second area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and
The second area to be planned is defined as to the first area to be planned.
The beneficial effect of the embodiment of the present invention is as follows:
The scheme that the embodiment of the present invention provides is passed through for arbitrary topological network element, by first for it determines that it is initial area to be planned that base station covers polygon, and progressively add other covering polygons to form new area to be planned in this area to be planned, until the capacity of the allocated resource of new area to be planned is while meeting in the range of capacity of the allocated resource in this topology network element, new area to be planned is defined as to this topology network element partition territory of really establishing rules.Because this programme has been considered according to the range of capacity of topological network element and determined this topology network element partition territory of really establishing rules carrying out when planning topology, even if therefore the capacity of different topology network element is different, the scheme providing according to the embodiment of the present invention, also can realize for the topological network element of different capabilities network topology is planned automatically.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the position, base station described of MapInfo;
A plurality of polygonal schematic diagram of Fig. 2 for manually sketching the contours of according to position, base station;
The idiographic flow schematic diagram of the planing method of a kind of network topology that Fig. 3 provides for the embodiment of the present invention;
The concrete structure schematic diagram of the device for planning of a kind of network topology that Fig. 4 provides for the embodiment of the present invention;
The scheme that Fig. 5 a provides for a embodiment of the present invention concrete application flow schematic diagram in practice;
Fig. 5 b is the schematic diagram of a plurality of Thiessen polygon of generation;
Fig. 5 c is the schematic diagram of the Thiessen polygon at the place, seed base station chosen;
Fig. 5 d is the schematic diagram that the Thiessen polygon 2,3,4 at place is distinguished in a plurality of base stations adjacent with seed base station;
Fig. 5 e is the schematic diagram of the Thiessen polygon 3～7 adjacent with the area to be planned that comprises Thiessen polygon 1,2;
Fig. 5 f makes the actual capacity of area to be planned meet the combination schematic diagram of the Thiessen polygon between the actual capacity Congestion Area of topological network element;
The schematic diagram that Fig. 5 g is an area to be planned planning for first topological network element;
Network topology planning schematic diagram after Fig. 5 h has been.
Embodiment
The scheme that adopts prior art to provide is provided and cannot automatically carries out the problem of network topology planning for the discrepant topological network element of capacity, the embodiment of the present invention provides a kind of programme of network topology, by the arbitrary topological network element for area to be planned to be allocated, from forming the base station of network topology, cover polygon, choose a base station and cover polygon as initial area to be planned, and from the adjacent base station of this initial area to be planned, cover polygon circulation and choose base station and cover polygon and join in this initial area to be planned and generate new area to be planned, until the capacity of the allocated resource of the new area to be planned generating is when preset capacity scope corresponding to this topology network element, using the new area to be planned of this generation as the area to be planned of distributing to this topology network element.The scheme providing according to the embodiment of the present invention, even if the capacity of each topological network element has difference, also can complete the automatic realization of topology planning.
It should be noted that, determine that base station covers polygon and has a variety of methods, such as, can, according to the position of the base station in network topology, adopt coverage prediction method, marginal testing method, Thiessen polygon method etc. to determine that base station covers polygon.Hereinafter; emphasis is to describe usining the scheme that Thiessen polygon covers Polygon as base station; then; everyly utilize scheme that the embodiment of the present invention provides to carry out network topology automatically to plan; no matter to using Thiessen polygon to cover polygon as base station; or the polygon of other types of usining covers polygon as base station, all should be considered as within the protection range of scheme that the embodiment of the present invention provides.In addition it should be noted that, owing to determining that a plurality of Thiessen polygon of the whole network topology of covering are conventional at present a kind of technology, herein this is repeated no more.
Below in conjunction with accompanying drawing, the scheme that the embodiment of the present invention is provided is elaborated.
First, the embodiment of the present invention provides a kind of planing method of network topology, and for each the topological network element in different areas to be planned to be allocated, the method comprises following step as shown in Figure 3:
Step 31, chooses not join and distributes to really establish rules base station in partition territory of arbitrary topological network element and cover polygon;
Step 32, this base station of relatively choosing covers within the scope of the capacity and preset capacity of polygonal allocated resource, at comparative result, it is the capacity during in pre-this scope that this base station of choosing covers polygonal allocated resource, execution step 33, and be that capacity that this base station of choosing covers polygonal allocated resource is less than under preset capacity scope in limited time at comparative result, perform step 34;
Step 33, covers polygon by this base station of choosing and is defined as this topology network element partition territory of really establishing rules;
Step 34, this base station of choosing is covered to polygon as the first area to be planned, and following step is carried out in circulation, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules, and flow process finishes.Wherein, following step mentioned above comprises:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from above-mentioned adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, the degree of association that does not add all base stations of the second area to be planned to cover between the area to be planned that polygons form in the second area to be planned and network topology is minimum, and the second area to be planned is defined as to the first area to be planned.
In embodiments of the present invention, consider that the capacity of the allocated resource of topological network element is not exceeding under the prerequisite of preset capacity range limit, can allow the capacity of topological network element to have concussion scope to a certain degree.When considering the concussion situation of capacity, the capacity of the allocated resource in the second area to be planned generating described in above-mentioned steps is during in preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules, specifically can be divided into following sub-step:
First, at the capacity of the allocated resource of the second area to be planned generating, during in preset capacity scope, whether the capacity of the allocated resource of the second area to be planned that judgement generates reaches preset capacity range limit;
Then, for the situation that the determination result is NO, illustrate that the capacity of the allocated resource of the second area to be planned generating can also further increase, can also choose more base station covering polygon and join the second area to be planned.Therefore the capacity sum that now can be further covers polygonal allocated resource according to the capacity of the allocated resource of the second area to be planned generating and the base station of choosing is not more than above-mentioned preset capacity range limit and the base station chosen covers the selection rule that the region of polygon and the common formation of the second area to be planned of generation is continuous overlay area, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
It should be noted that, specifically choose base station and cover polygon or a plurality of base station and cover polygon and join in the second area to be planned, need to add the base station of choosing to cover polygonal the second area to be planned and be not selected and do not add the degree of association between the region of other all base stations covering polygons formations of the second area to be planned to determine by investigations.
Within the scope of earthquake, availablely join base station in the second area to be planned and cover polygon and can have thousands of kinds of compound modes, and best composite type makes to add the base station of choosing to cover a combination of the degree of association minimum between the region that remaining base station in the second area to be planned after polygon and network topology covers polygon formation.Therefore, cover while really establishing rules partition territory as this topology network element when polygon joins the second area to be planned choosing base station, can be never to add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, the degree of association that does not add all base stations of the 4th area to be planned to cover between the area to be planned that polygons form in the 4th area to be planned and network topology is minimum, and the 4th area to be planned is defined as to this topology network element partition territory of really establishing rules.
On the other hand, when according to above-mentioned selection rule, from the adjacent base station of the second area to be planned of generating, cover polygon, when choosing base station and covering the second area to be planned that polygon joins generation and really establish rules partition territory as this topology network element, can also be with further reference to other selection rules.Such as, can be not more than according to the capacity of other allocated resources of the second area to be planned generating and the capacity sum of corresponding other allocated resources of the base station of choosing covering polygon the selection rule of the range of capacity upper limit of other default allocated resources, never add the adjacent base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
Similarly, when with reference to other selection rules, the base station that meets other selection rules covers polygon (or base station covers polygonal combination) and may also have thousands of, now, be also can to the base station of finally choosing, cover polygon (or base station covers polygon combination) by following manner to limit:
Never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, the degree of association that does not add all base stations of the 4th area to be planned to cover between the area to be planned that polygons form in the 4th area to be planned and network topology is minimum, and the 4th area to be planned is distributed to this topology network element.
In a preferred embodiment of the present invention, the problem of the calculation resources that the scheme of considering is required, in order to reduce this resource as far as possible, from the adjacent base station covering polygon of the first area to be planned, choosing base station covering polygon joins in the first area to be planned, generate the second area to be planned, be specifically as follows:
From the adjacent base station of the first area to be planned, cover polygon, choose a base station covering polygon and join in the first area to be planned, generate the second area to be planned.Than choose a plurality of base stations at every turn, cover polygons and join the mode in the first area to be planned, choose at every turn a base station cover the mode that polygon joins in the first area to be planned can be little a lot of to the demand of calculation resources.
In embodiments of the present invention, the above-mentioned degree of association can be determined according to the relational matrix of area to be planned.Particularly, can with reference in prior art if application number is 200810115489.1, described in the patent application of by name " a kind of method and device that carries out network topology planning ", according to relational matrix, determine the scheme of the degree of association of area to be planned.
The said method providing corresponding to the embodiment of the present invention, the embodiment of the present invention also provides a kind of device for planning of network topology, and the concrete structure schematic diagram of this device as shown in Figure 4, comprises following functions unit:
Choose unit 41, for for the arbitrary topological network element in each topological network element of different areas to be planned to be allocated, choose not join and distribute to really the establish rules base station in partition territory of other topological network elements and cover polygon;
Comparing unit 42, covers capacity and the preset capacity scope of polygonal allocated resource for relatively choosing this base station of choosing unit 41;
The first allocation units 43, for relatively obtaining capacity that this base station covers polygonal allocated resource at comparing unit 42 when the preset capacity scope, cover polygon and are defined as this topology network element partition territory of really establishing rules choosing this base station of choosing unit 41;
Determining unit 44, for being less than at comparing unit 42 capacity that relatively this base station covers polygonal allocated resource under preset capacity scope in limited time, covers polygon as the first area to be planned using choosing this base station of choosing unit 41;
The second allocation units 45, for the first area to be planned circulation of determining for determining unit 44, carry out following step, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from above-mentioned adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, in the second area to be planned and network topology, not adding all base stations of the second area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and the second area to be planned is defined as to the first area to be planned.
In embodiments of the present invention, above-mentioned the second allocation units 45 specifically can be for: at the capacity of the allocated resource of the second area to be planned generating, during in preset capacity scope, whether the capacity of the allocated resource of the second area to be planned that judgement generates reaches preset capacity range limit; When the determination result is NO, the capacity sum that covers polygonal allocated resource according to the capacity of the allocated resource of the second area to be planned generating and the base station of choosing is not more than preset capacity range limit and the base station chosen covers the selection rule that the region of polygon and the common formation of the second area to be planned of generation is continuous overlay area, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
Wherein, the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, and are specially:
The second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, in the 4th area to be planned and network topology, not adding all base stations of the 4th area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and the 4th area to be planned is defined as to this topology network element partition territory of really establishing rules.
In a preferred embodiment, the second allocation units 45 never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, be specifically as follows:
The second allocation units 45 are not more than the selection rule of the range of capacity upper limit of other default allocated resources according to the capacity of other allocated resources of the second area to be planned generating and the capacity sum of corresponding other allocated resources of base station covering polygon of choosing, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation the area to be planned as this topology network element.
In a preferred embodiment, when the second allocation units 45 can be chosen base station covering polygon according to the capacity of other allocated resources, the second allocation units 45 never add the base station of the second area to be planned of generation to cover in polygon, choose base station covering polygon and join the second area to be planned of generation as the area to be planned of this topology network element, be specifically as follows:
Never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, in the 4th area to be planned and network topology, not adding all base stations of the 4th area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and
The 4th area to be planned is defined as to definite area to be planned of this topology network element.
In practice one of the such scheme providing with the embodiment of the present invention below has particular application as example, describes the application flow of such scheme in detail.The schematic diagram of this application flow as shown in Figure 5 a, comprises the steps:
Step 51, arranges the capacity of the topological network element comprising in network topology to be planned.
Topological network element in network topology to be planned generally comprises MSC, BSC, lane place coding (Location Area Code, LAC) etc.For MSC, for being generally maximum, the capacity of its setting can carry number of users; For BSC, for being generally maximum, the capacity of its setting can hold TRX number, ET number etc.; For LAC, for the capacity of its setting is generally maximum paging amount etc.Take BSC as example, if be that maximum can be held TRX number (being TRX rated capacity) by its capacity setting,, for all BSC in network topology to be planned, have following table 2:
Table 2:
| The sign of BSC | TRX rated capacity |
| NBSC1 | 2000 |
| NBSC2 | 1200 |
| NBSC3 | 1200 |
| NBSC4 | 660 |
| NBSC5 | 660 |
| NBSC6 | 660 |
Step 52, arranges the load-bearing capacity of the topological network element comprising in network topology to be planned.
For the identical or different topological network element of capacity, can its load-bearing capacity be recently set according to the percentage of rated capacity, thereby determine its actual capacity.Above table 2 is example, and the load-bearing capacity arranging for BSC and corresponding TRX actual capacity are as shown in table 3 below:
Table 3:
| The sign of BSC | TRX rated capacity | Load-bearing capacity | TRX actual capacity |
| NBSC1 | 2000 | 60% | 1200 |
| NBSC2 | 1200 | 60% | 720 |
| NBSC3 | 1200 | 30% | 360 |
| NBSC4 | 660 | 60% | 396 |
| NBSC5 | 660 | 60% | 396 |
| NBSC6 | 660 | 60% | 396 |
Step 53, topological network element sequence.
The sequence of topology network element is mainly to determine the order of automatically planning in planning process, in the embodiment of the present invention, can be, but not limited to according to topological element name, it be sorted, or according to the actual capacity of topological network element order from high to low, it is sorted, or according to the actual capacity of topological network element order from low to high, it is sorted.By topological network element, sort, can first for BSC, carry out network topology planning, then carry out network topology planning for MSC; Or can first for MSC, carry out network topology planning, and then carry out network topology planning etc. for BSC.
Step 54, determines between the load-bearing capacity Congestion Area of topological network element, and according between load-bearing capacity Congestion Area, determines between actual capacity Congestion Area.
Determine that the effect between the load-bearing capacity Congestion Area of topological network element is, for the actual capacity of topological network element, a fluctuation range is set, and limits between acceptable topological network element actual capacity Congestion Area.It between actual load ability Congestion Area, is a percentage interval.For example, can be 90%～110%.For upper table 3, as shown in table 4 below between the actual capacity Congestion Area of BSC:
Table 4:
| The sign of BSC | TRX rated capacity | Load-bearing capacity | TRX actual capacity | Between TRX actual capacity Congestion Area |
| NBSC1 | 2000 | 60% | 1200 | 1200±120 |
| NBSC2 | 1200 | 60% | 720 | 700±72 |
| NBSC3 | 1200 | 30% | 360 | 360±36 |
| NBSC4 | 660 | 60% | 396 | 396±39 |
| NBSC5 | 660 | 60% | 396 | 396±39 |
| NBSC6 | 660 | 60% | 396 | 396±39 |
Step 55, determines that the constraints of network topology planning is interval.
In embodiments of the present invention, when realizing network topology and automatically plan, can choose TRX actual capacity, telephone traffic actual capacity, ET count a reference parameter whether completing as the automatic planning of judgement in the parameters such as actual capacity, paging amount actual capacity, in elected, one of them is when judging the reference parameter whether automatic planning completes, and other parameter just can be used as the constraints of automatic planning.For example, if choose TRX actual capacity as the parameter of automatic planning institute reference, constraints when telephone traffic actual capacity just can be used as network topology and automatically plans.Wherein, telephone traffic actual capacity also can have between Congestion Area, such as can be [4000,5000] between telephone traffic actual capacity Congestion Area.For example, suppose take that telephone traffic actual capacity (or between telephone traffic actual capacity Congestion Area) is constraints, mean in the area to be planned of having planned, telephone traffic in arbitrary area to be planned should relatively approach with telephone traffic actual capacity (or in telephone traffic actual capacity concussion interval range), could meet like this planning condition of network topology.
Above-mentioned steps 51～55 can be thought the preparation process of network topology planning, and following two steps is the emphasis step in the embodiment of the present invention, i.e. network topology planning carry out step.
Step 56, for network topology to be planned, according to each position, base station, generates a plurality of Thiessen polygon that the gross area covers whole network topology to be planned.In the embodiment of the present invention, the schematic diagram of a plurality of Thiessen polygon of hypotheses creation please refer to Fig. 5 b.
Step 57, the Thiessen polygon based on generating, carries out the automatic planning of network topology.
Particularly, in this step 57, a plurality of base stations that can comprise from network topology to be planned, choose at random a base station as seed base station, and take the Thiessen polygon at this place, seed base station and be basis, (this topology network element can be determined according to the topological network element sequence of abovementioned steps 53 to carry out first topological network element, in embodiments of the present invention, can suppose that BSC is first topological network element that need to carry out network topology planning) network topology planning.Wherein, the Thiessen polygon at this place, seed base station refers to the Thiessen polygon that in Fig. 5 c, label is 1.The Thiessen polygon at this place, seed base station can be used as an initial area to be planned.
In carrying out the process of the automatic planning of network topology, first need to determine the base station adjacent with this seed base station, and further determine the Thiessen polygon at each adjacent place, base station.The Thiessen polygon that is 2,3,4 as label in Fig. 5 d is a plurality of base stations adjacent with the seed base station Thiessen polygon at place respectively.In embodiments of the present invention, can, according at every turn to the mode that adds a Thiessen polygon in area to be planned, realize gradually the expansion of area to be planned.Add the Criterion of Selecting of the Thiessen polygon of area to be planned can be with reference to the flow between different areas to be planned (hereinafter to be referred as the degree of association) size.Such as, if desired in Thiessen polygon 2～4, choosing one joins in the area to be planned that Thiessen polygon 1 forms, can determine successively and comprise Thiessen polygon 1, first degree of association between 2 area to be planned and the area to be planned that comprises remaining other Thiessen polygon in network topology to be planned, comprise Thiessen polygon 1, second degree of association between 3 area to be planned and the area to be planned that comprises remaining other Thiessen polygon in network topology to be planned, comprise Thiessen polygon 1, the 3rd degree of association between 4 area to be planned and the area to be planned that comprises remaining other Thiessen polygon in network topology to be planned, and according to that degree of association minimum in the first～three degree of association, which Thiessen polygon is the area to be planned of determining place, seed base station should comprise.Such as, suppose that first degree of association is minimum, choose the area to be planned that Thiessen polygon 2 joins place, seed base station, area to be planned now expands to and comprises Thiessen polygon 1,2.
Further, continue the adjacent base station, base station in definite area to be planned with comprising Thiessen polygon 1,2, and the Thiessen polygon at those definite places, base station (as the Thiessen polygon 3～7 in Fig. 5 e), and carry out step similar to the above, from Thiessen polygon 3～7, choose a Thiessen polygon and join in the area to be planned at place, seed base station.The rest may be inferred, until judge the lower limit between the actual capacity Congestion Area that the actual capacity of the area to be planned at place, seed base station reaches in step 54 the topological network element of setting.
It should be noted that, in embodiments of the present invention, also can choose a plurality of Thiessen polygon joins in area to be planned at every turn, but with choose the Thiessen polygon mode in area to be planned that adds at every turn and compare, the latter will be well below the former in amount of calculation, and therefore the such area to be planned extended mode of the latter is selected in suggestion.
When the actual capacity of the area to be planned at place, seed base station reaches after the lower limit between the actual capacity Congestion Area of topological network element, can also from the Thiessen polygon beyond this area to be planned, choose one or more Thiessen polygon and join in this area to be planned, made to add the actual capacity of the area to be planned after these one or more Thiessen polygon of choosing meet between the actual capacity Congestion Area in topological network element within this condition.The combination that makes the actual capacity of area to be planned meet the Thiessen polygon of this condition is generally very many (as the combination in any of a plurality of Thiessen polygon that mark with dotted line in Fig. 5 f all meets this condition, in Fig. 5 f what compared with heavy line, mark is the area to be planned after the current expansion obtaining), in order to make the area to be planned after planning can meet the criterions such as the degree of association is less, be necessary to select a kind of combination of optimum from meet the Thiessen polygon combination of this condition.
Selecting this optimum combination can be with reference to a plurality of standard.Such as, can choose the combination of the degree of association minimum between the area to be planned that has made to add the area to be planned of Thiessen polygon combination and comprised remaining other Thiessen polygon in network topology.If also there are other constraintss, can also further consider the restriction of other constraintss to the combination of choosing.Such as, if using telephone traffic actual capacity as constraints, should choose the combination in telephone traffic actual capacity concussion interval range of telephone traffic in the area to be planned that has made to add Thiessen polygon combination, more preferably, this combination of choosing preferably can meet simultaneously and make the above-mentioned degree of association be less than predetermined association degree threshold value.The normative reference of selecting optimum combination is more, and this is no longer going to repeat them, and in actual applications, visual demand arranges the criteria for selection of optimum combination.
Through above-mentioned steps, can obtain the area to be planned that (such as being designated the BSC of NBSC1 in front table) planned for first topological network element, the part indicating compared with heavy line as shown in Fig. 5 g.Next, can be for second topological network element (such as being designated the BSC of NBSC2 in front table), continue to choose other seed base stations (be positioned at base station as seed base station) outside the above-mentioned area to be planned of having planned, and perform step 57 automatic planning process, to realize for 6 BSC, complete the planning to whole network topology to be planned.As initial area to be planned, carry out network topology when planning usining other place, seed base station Thiessen polygon, can not choose again the Thiessen polygon joining in the area to be planned of having planned.
Based on above-mentioned steps, the planning of the network topology for this topology network element schematic diagram finally completing is as shown in Fig. 5 h.6 parts of numbering A～F correspond respectively to different BSC regions.
For other topological network elements (such as MSC), by continuation, implement above-mentioned steps, can obtain the network topology program results for similar Fig. 5 h of other topological network elements.After the planning all finish for all topological network elements, can correspond respectively in the network topology programme of different topology network element, the scheme of the total amount minimum of an intercorrelation degree of selection is as final network topology program results.
There is following advantage in the above-mentioned scheme of automatically carrying out network topology planning that the embodiment of the present invention provides:
Owing to having considered the different capabilities of each topological network element in planning process, and for arbitrary topological network element, using its capacity judgment condition that whether planning completes as corresponding area to be planned, thereby realized the automatic planning that the topological network element there are differences for capacity is realized network topology;
Meanwhile, for the topological network element of same capability, also can realize different load requirement automatic planning (for example capacity is all 6 BSC of 1000, can realize its planning after TRX actual capacity be respectively 800,700,600,500,400,300;
Be no longer dependent on planning personnel's manual operations, do not rely on planning personnel's level and experience, can ensure well the quality of planning;
By choosing network topology program results according to degree of association size, can guarantee the optimization of the network topology program results chosen;
In planning process, can take into account multinomial constraints simultaneously, guarantee that the network topology program results of choosing can fully be applicable to actual network condition.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a network topology planning method, is characterized in that, for each topological network element in planning to be allocated region, carries out respectively following step:
Choose and do not add a base station determining planning region to cover polygon;
This base station of relatively choosing covers capacity and the preset capacity scope of polygonal allocated resource;
At comparative result, be that this base station of choosing is while covering polygonal described capacity in preset capacity scope, this base station is covered to polygon and be defined as this topology network element partition territory of really establishing rules, and be that this base station of choosing covers polygonal described capacity and is less than under preset capacity scope in limited time at comparative result, this base station is covered to polygon as the first area to be planned, and following step is carried out in circulation, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from described adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, the degree of association that does not add all base stations of the second area to be planned to cover between the area to be planned that polygons form in the second area to be planned and network topology is minimum, and the second area to be planned is defined as to the first area to be planned.
2. the method for claim 1, is characterized in that, until the capacity of the allocated resource of the second area to be planned generating is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules, and specifically comprises:
Whether the capacity of the allocated resource of the second area to be planned that judgement generates reaches described preset capacity range limit;
When the determination result is NO, the capacity sum that covers polygonal allocated resource according to the capacity of the allocated resource of the second area to be planned generating and the base station of choosing is not more than described preset capacity range limit and the base station chosen covers the selection rule that the region of polygon and the common formation of the second area to be planned of generation is continuous overlay area, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
3. method as claimed in claim 2, it is characterized in that, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, specifically comprise:
Never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, the degree of association that does not add all base stations of the 4th area to be planned to cover between the area to be planned that polygons form in the 4th area to be planned and network topology is minimum, and
The 4th area to be planned is defined as to this topology network element partition territory of really establishing rules.
4. method as claimed in claim 2, it is characterized in that, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, specifically comprise:
According to the capacity of other allocated resources of the second area to be planned generating and the capacity sum of corresponding other allocated resources of base station covering polygon of choosing, be not more than the selection rule of the range of capacity upper limit of other default allocated resources, never add the adjacent base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
5. method as claimed in claim 4, it is characterized in that, never add the adjacent base station of the second area to be planned of generation to cover in polygon, choose base station and cover the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, specifically comprise:
Never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, the degree of association that does not add all base stations of the 4th area to be planned to cover between the area to be planned that polygons form in the 4th area to be planned and network topology is minimum, and
The 4th area to be planned is defined as to this topology network element partition territory of really establishing rules.
6. the method as described in as arbitrary in claim 1～5, is characterized in that, from the adjacent base station of the first area to be planned, covers and polygon, chooses base station and cover polygon and join in the first area to be planned, generates the second area to be planned, is specially:
From the adjacent base station of the first area to be planned, cover polygon, choose a base station covering polygon and join in the first area to be planned, generate the second area to be planned.
7. the method as described in as arbitrary in claim 1～5, is characterized in that, according to the relational matrix of area to be planned, determines the described degree of association.
8. a network topology device for planning, is characterized in that, comprising:
Choose unit, for the arbitrary topological network element in each the topological network element for planning to be allocated region, choose not join and determine that a base station in planning region covers polygon;
Comparing unit, covers capacity and the preset capacity scope of polygonal allocated resource for relatively choosing this base station of unit selection;
The first allocation units, for comparing capacity that this base station covers polygonal allocated resource at comparing unit when the preset capacity scope, cover polygon by this base station of choosing unit selection and are defined as this topology network element partition territory of really establishing rules;
Determining unit, is less than under preset capacity scope in limited time for compare capacity that this base station covers polygonal allocated resource at comparing unit, and this base station of choosing unit selection is covered to polygon as the first area to be planned;
The second allocation units, for the first area to be planned circulation of determining for determining unit, carry out following step, until the capacity of allocated resource of carrying out the second area to be planned that following step generates is when preset capacity scope, the second area to be planned generating is defined as to this topology network element partition territory of really establishing rules:
From the adjacent base station covering polygon of the first area to be planned, choosing the first base station covering polygon joins in the first area to be planned, generate the second area to be planned, wherein, the second area to be planned generating meets: with respect to covering from described adjacent base station, choose the first base station cover other base stations outside polygon and cover polygons and join the degree of association between the area to be planned that does not add all base stations of the 3rd area to be planned to cover polygons formations in the 3rd area to be planned that the first area to be planned obtains and network topology polygon, in the second area to be planned and network topology, not adding all base stations of the second area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and
The second area to be planned is defined as to the first area to be planned.
9. device as claimed in claim 8, is characterized in that, described the second allocation units specifically for:
At the capacity of the allocated resource of the second area to be planned generating, during in preset capacity scope, whether the capacity of the allocated resource of the second area to be planned that judgement generates reaches described preset capacity range limit; When the determination result is NO, the capacity sum that covers polygonal allocated resource according to the capacity of the allocated resource of the second area to be planned generating and the base station of choosing is not more than described preset capacity range limit and the base station chosen covers the selection rule that the region of polygon and the common formation of the second area to be planned of generation is continuous overlay area, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules.
10. device as claimed in claim 9, it is characterized in that, described the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, be specially:
Described the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, in the 4th area to be planned and network topology, not adding all base stations of the 4th area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and
The 4th area to be planned is defined as to this topology network element partition territory of really establishing rules.
11. devices as claimed in claim 9, it is characterized in that, described the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation as this topology network element partition territory of really establishing rules, be specially:
Described the second allocation units are not more than the selection rule of the range of capacity upper limit of other default allocated resources according to the capacity of other allocated resources of the second area to be planned generating and the capacity sum of corresponding other allocated resources of base station covering polygon of choosing, never add the base station of the second area to be planned of generation to cover in polygon, choose base station and cover after the second area to be planned that polygon joins generation the area to be planned as this topology network element.
12. devices as claimed in claim 11, it is characterized in that, described the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose base station covering polygon and join the second area to be planned of generation as the area to be planned of this topology network element, are specially:
Described the second allocation units never add the base station of the second area to be planned of generation to cover in polygon, choose the second base station and cover the second area to be planned that polygon joins generation, generate the 4th area to be planned, wherein, the 4th area to be planned generating meets: with respect to the base station that never adds the second area to be planned of generation, cover and in polygon, choose the second base station and cover other base stations outside polygon and cover the degree of association between the area to be planned that does not add all base stations of the 5th area to be planned to cover polygons formations in the 5th area to be planned that the second area to be planned that polygons join generation obtains and network topology, in the 4th area to be planned and network topology, not adding all base stations of the 4th area to be planned to cover the minimum base station of the degree of association between the area to be planned that polygons form covers polygon base station and covers polygon base station and cover polygon base station and cover polygon, and
The 4th area to be planned is defined as to definite area to be planned of this topology network element.
13. devices as described in as arbitrary in claim 8～12, it is characterized in that, described the second allocation units are chosen base station covering polygon and are joined in the first area to be planned from the adjacent base station covering polygon of the first area to be planned, generate the second area to be planned, are specially:
Described the second allocation units cover polygon from the adjacent base station of the first area to be planned, choose a base station covering polygon and join in the first area to be planned, generate the second area to be planned.
14. devices as described in as arbitrary in claim 8～12, is characterized in that, according to the relational matrix of area to be planned, determine the described degree of association.
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