CN102098689A - Antenna automatic-distribution method and device for indoor distributed wireless network - Google Patents
Antenna automatic-distribution method and device for indoor distributed wireless network Download PDFInfo
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Abstract
The invention relates to an antenna automatic-distribution method and an antenna automatic-distribution system for an indoor distributed wireless network. The method comprises the following steps of: 1, initializing the antenna distribution density and antenna distribution positions of the indoor distributed wireless network to be distributed; 2, simulating current distribution by using a preset propagation model; 3, judging whether a coverage simulation result meets the requirements of a preset coverage objective or not, performing a step 4 if the coverage simulation result does not meet the requirements of the preset coverage objective, and finishing the arrangement if the coverage simulation result meets the requirements of the preset coverage objective; 4, calculating a wireless signal field intensity attenuation gradient of the antenna distribution positions in divided directional lines according to the simulation result of the current distribution of antennae, and regulating the antenna distribution positions according to the wireless signal field intensity attenuation gradient; and 5, searching for coverage holes and overlapped coverage areas of the indoor distributed wireless network according to the simulation result, regulating the antenna distribution intensity according to the coverage holes and the overlapped coverage areas, and performing the step 2. The method and the system can realize the automatic distribution of the antennae of the indoor distributed wireless network and improve the distribution efficiency of the indoor distributed wireless network.
Description
Technical field
The present invention relates to the communications field, automatic method for arranging of the antenna of especially indoor distributed radio network and device.
Background technology
Indoor covering is the extension of mobile communications network at interior of building, is the effective means that improves network coverage breadth and depth, the interior traffic of absorption chamber and improve communication quality, also is simultaneously the effective solution that improves network capacity.Because 3G more lays particular emphasis on data service, and data service more mostly occurs indoor, 3G system chambers internal traffic accounts for more than 70% of total traffic.Therefore, the quality of indoor covering directly has influence on the network quality of 3G mobile system.
Similar with the planning of outdoor base station, indoor distribution also needs to lay to realize good covering by rational power division and antenna.In the antenna arrangement of indoor distributed radio network, need consider the particularity of indoor environment, as the partition wall loss, reduce signal and leak and reduce outdoor signal indoor factors such as influence, even for the assurance system simultaneously, reduction is disturbed, ensure the quality of products, need to adopt many antennas small-power principle, rationally lay antenna, guarantee indoor distribution effect.
Antenna arrangement for indoor distributed radio network comprises: the sky line density of indoor distributed radio network is determined and the aerial position of indoor distributed radio network is determined.For the distribution density of antenna, refer to the antenna amount of required layout in this covering floor.Factors such as the closely covering of the antenna of indoor distributed radio network, transmission power limit, installing space restriction, visual pollution restriction require the position of domestic aerial to determine to be different from the position that lays of outdoor version antenna.
In the antenna arrangement process of present indoor distributed radio network, by the situation of technical staff according to reconnaissance trip, carry out conceptual design according to factors such as fabric structure, covering scene type and antenna-feedback system layouts, select typical test point to carry out simulation test then.This kind mode needs mould survey personnel to carry out DCO, has increased the workload of arranging, causes being not suitable for arranging net fast carrying out increasing the cost expense when indoor wireless net is built.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of automatic method for arranging of antenna and device of indoor distributed radio network, can realize the automatic layout of the antenna of indoor distributed radio network, improve indoor distributed radio network and arrange efficient.
The invention discloses a kind of automatic method for arranging of indoor distributed radio network antenna, comprising:
Step 1 is treated the antenna distribution density of indoor distributed radio network of layout and antenna and is laid the position and carry out initial setting up;
Step 2 is used default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result;
Step 3 judges whether described emulation of coverage capability result satisfies default coverage goal requirement, if do not satisfy, then execution in step 4; If satisfy, then arrange and finish;
Step 4 is calculated the wireless signal field attenuation gradient of aerial position point on the traverse line of dividing according to the simulation result of the current layout of antenna, according to described wireless signal field attenuation gradient adjustment aerial position;
Step 5 is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts the antenna distribution density according to the described coverage hole and the described overlapping area of coverage, carries out described step 2.
Also comprise before layout is finished in the described step 3,
Step 6 according to current layout account cost, judges whether cost satisfies default cost target call, if do not satisfy, then execution in step 4.
Described step 1 further is,
Step 31 is classified to indoor distributed radio network according to the complex structure degree and the user density of indoor distributed radio network, for each type is provided with corresponding coverage density parameter value;
Step 32 is judged the type that indoor distributed radio network to be arranged is affiliated, determines the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged;
Step 33, the antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged;
Step 34 is put into the even cloth of antenna in the zone that described indoor distributed radio network need cover.
Described step 34 also comprises, by following principle antenna laid and adjusts,
If the aerial position point is positioned at building masonry wall, then described aerial position point is moved apart building masonry wall;
If the aerial position point is positioned at the corridor, then,, then the aerial position point is arranged on described corner if there is the turning in described corridor with the close center, corridor of aerial position point;
If the aerial position point is positioned at external door and window place, described aerial position point should be moved apart described external door and window place.
Described step 4 further is,
Step 51 is obtained the simulation result of current layout;
Step 52, for each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of described current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction.
Described step 52 also comprises,
Step 61 judges whether the location point at place, the mobile back of described aerial position point is to put a little, if then described aerial position point is preset step-length to moving opposite direction rollback second.
Described step 5 further is,
Step 71 is obtained the simulation result of current layout;
Step 72 is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna;
Step 73 if there is coverage hole, then increases the aerial position point at described coverage hole received power minimum point place;
Step 74 detects the described overlapping area of coverage, if overlapping area of coverage signal strength signal intensity is higher than pre-set threshold value, then the antenna in the described overlapping area of coverage is carried out contribution degree and calculates, and the aerial position point of contribution degree minimum is removed.
Also comprise before layout is finished in the described step 3,
Step 81 judges whether comprise the coverage hole or the overlapping area of coverage in the described distributed radio network, if comprise, then carry out described step 5 according to described simulation result, otherwise, carry out described layout complete operation.
The invention also discloses a kind of automatic arrangement system of indoor distributed radio network antenna, comprising:
The initial setting up module is used to treat the antenna distribution density of indoor distributed radio network of layout and antenna and lays the position and carry out initial setting up;
Emulation module is used to use default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result;
Cover judge module, be used to judge whether described emulation of coverage capability result satisfies default coverage goal requirement, if satisfy, run location adjusting module then; If satisfy, then arrange and finish;
Position adjusting type modules is used for the wireless signal field attenuation gradient of simulation result calculating aerial position point on the traverse line of dividing according to the current layout of antenna, adjusts aerial position according to described wireless signal field attenuation gradient;
The density adjusting module is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts the antenna distribution density according to the described coverage hole and the described overlapping area of coverage, moves described emulation module.
Described covering judge module also is used for the start-up cost judge module when judging described emulation of coverage capability result and satisfy default coverage goal requirement;
Described cost judge module is used for according to current layout account cost, judges that whether cost satisfies default cost target call, if do not satisfy, then moves described position adjusting type modules.
Described initial setting up module is further used for according to the complex structure degree of indoor distributed radio network and user density indoor distributed radio network being classified, for each type is provided with corresponding coverage density parameter value; Judge the type that indoor distributed radio network to be arranged is affiliated, determine the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged; The antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged; The even cloth of antenna is put in the zone that described indoor distributed radio network need cover.
Described initial setting up module also is used for by following principle antenna being laid when even cloth is put in the zone that described indoor distributed radio network need cover with antenna to be adjusted,
If the aerial position point is positioned at building masonry wall, then described aerial position point is moved apart building masonry wall;
If the aerial position point is positioned at the corridor, then,, then the aerial position point is arranged on described corner if there is the turning in described corridor with the close center, corridor of aerial position point;
If the aerial position point is positioned at external door and window place, described aerial position point should be moved apart described external door and window place.
Described position adjusting type modules is further used for obtaining the simulation result of current layout; For each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of described current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction.
Described position adjusting type modules is used to also when the portable antenna location point judge whether the location point at place, the mobile back of described aerial position point is to put a little, if then described aerial position point is preset step-length to moving opposite direction rollback second.
Described density adjusting module is further used for obtaining the simulation result of current layout; Search for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna; If there is coverage hole, then increase the aerial position point at described coverage hole received power minimum point place; Detect the described overlapping area of coverage,, then the antenna in the described overlapping area of coverage is carried out contribution degree and calculate, the aerial position point of contribution degree minimum is removed if overlapping area of coverage signal strength signal intensity is higher than pre-set threshold value.
Described covering judge module is when judging described emulation of coverage capability result and satisfy default coverage goal requirement, also be used for judging according to described simulation result whether described distributed radio network comprises the coverage hole or the overlapping area of coverage, if comprise, then start described density adjusting module, otherwise, carry out described layout complete operation.
Beneficial effect of the present invention is, by arranging automatically, improves indoor distributed radio network and arranges efficient; By carrying out cost budgeting, can carry out the antenna arrangement adjustment according to cost requirement; By adjusting the aerial position point, can be optimized automatic layout according to the wireless signal field attenuation gradient; By increasing the aerial position point, improve covering quality at coverage hole; By repeating area of coverage removal aerial position point, reduce antenna amount, save cost.
Description of drawings
Fig. 1 is the flow chart of the automatic method for arranging of antenna of indoor distributed radio network of the present invention;
Fig. 2 is the flow chart of the automatic method for arranging of antenna of the indoor distributed radio network of a preferred implementation of the present invention;
Fig. 3 is the flow chart of the automatic method for arranging of antenna of the indoor distributed radio network of another preferred implementation of the present invention;
Fig. 4 is the flow chart of method embodiment of the present invention;
Fig. 5 is the method flow diagram of the embodiment of adjustment aerial position of the present invention;
Fig. 6 is the method flow diagram of the embodiment of adjustment antenna distribution density of the present invention;
Fig. 7 is the structure chart of the automatic arrangement system of antenna of indoor distributed radio network of the present invention;
Fig. 8 is the structure chart of the automatic arrangement system of antenna of the indoor distributed radio network of a preferred implementation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The flow process of the automatic method for arranging of the indoor distributed radio network of the present invention antenna comprises as shown in Figure 1:
Step S100 treats the antenna distribution density of indoor distributed radio network of layout and antenna and lays the position and carry out initial setting up.
Step S200 uses default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result.
Step S300 judges that whether this emulation of coverage capability result satisfies default coverage goal requirement, if satisfy, and execution in step S400 then; If satisfy, then arrange and finish.
Step S400 calculates the wireless signal field attenuation gradient of aerial position point on the traverse line of dividing according to the simulation result of the current layout of antenna, according to wireless signal field attenuation gradient adjustment aerial position.
Step S500 searches for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts antenna distribution density, execution in step S200 according to the coverage hole and the overlapping area of coverage.
Another also comprises before layout is finished among described step S300 preferred embodiment as shown in Figure 2:
Step S600 according to current layout account cost, judges that whether cost satisfies default cost target call, if do not satisfy, and execution in step S400 then.
Another preferred embodiment as shown in Figure 3.
Also comprise before layout is finished among the described step S300,
Step S700 judges whether comprise the coverage hole or the overlapping area of coverage in the described distributed radio network, if comprise, then carry out described step S500 according to described simulation result, otherwise, carry out described layout complete operation.
Embodiment as shown in Figure 4.
Cover difference with 2G, the layout of the indoor distributed radio network of 3G and B3G antenna is followed the principle of " small-power, many antennas ", evenly covers whole target building to guarantee signal.Adopting low power advantage is that signal is easy to control, and radiation is little, externally disturbs little; Shortcoming is to improve the total cost of whole indoor covering system, therefore need seek balance point between covering quality and cost of layout.
The flow process of embodiment is as follows.
Step S310 treats the antenna distribution density of the indoor distributed radio network of layout and carries out initial setting up.
The embodiment following steps S311 of described step S310 is described to step S313.
Step S311 classifies to indoor distributed radio network according to the complex structure degree and the user density of indoor distributed radio network, for each type is provided with corresponding coverage density parameter value.
The initial setting up of antenna distribution density is according to the type decided of indoor distributed radio network to be arranged.In the embodiment, the target building type of indoor distributed radio network is divided three classes.First kind constructure inner structure is simple and the region is spacious, for example basement, parking lot etc.; The second class building is that internal structure is simple and the region is spacious equally, but the user is than intensive in the first kind building, and the flow of personnel amount is higher, for example the annex of general high-lager building, the reception hall of low layer etc.; Third-class structure thing internal structure complexity and partition wall are more, for example office building, office, hotel guest room etc.
All types of coverage densities is by being followed successively by: the first kind, low-density; Second class, intermediate density; The 3rd class, high density.The coverage density parameter value of every type of correspondence is set according to covering required satisfied covering quality and experience, forms unified parameter library, in order to read.
Antenna type is judged according to the following rules:
Generally speaking, adopt indoor all-around top absorbing antenna.
When the open structure in sky well construction or large conference room, the dining room etc. of hollow is arranged in the building, adopt the directional antenna large tracts of land to cover.
Long narrow strip structure is arranged in the building, adopt directed wall aerial to cover.
Near building window place, adopt directional antenna.
Antenna type fixes in the initial setting up really and finishes, and in the follow-up self-regulating process, no longer revises in the present embodiment.
Step S312 judges the type that indoor distributed radio network to be arranged is affiliated, determines the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged.
Treat the indoor distributed radio network type of layout and judge, obtain the building type and the area situation of indoor distributed radio network to be arranged, determine type under the indoor distributed radio network according to the result of exploration according to exploration.Determine the coverage density parameter value of indoor distributed radio network correspondence to be arranged according to affiliated type.
Step S313, the antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged.
The needed antenna amount of coverage calculates by determined coverage density calculation of parameter.The coverage density parameter is ρ
C, the aerial position on the expression per unit area is counted, and the area that covers building through the exploration back is S
T, the then required antenna amount that lays is N
A=S
T* ρ
CAntenna amount is the distribution density of antenna.
Step S320, the antenna for the treatment of the indoor distributed radio network of layout lays the position and carries out initial setting up.
The embodiment following steps S321 of described step S320 is described to step S322.
Step S321 is put into the even cloth of antenna in the zone that indoor distributed radio network need cover.
In order to guarantee even covering, the employing mean place was spread method a little when antenna laid the position initial setting up.So-called mean place is spread point methods and for concrete structure and antenna amount according to architecture storey antenna is put in the scope of required covering according to mean place cloth.
Step S322 lays position adjustment to the antenna of initial setting up.
A little can guarantee to cover evenly though mean place is spread, can be subjected to the influence of building practical structures, therefore, also need to adjust after mean place is spread a little.
By following principle antenna is laid and to adjust.
If the aerial position point is positioned at building masonry wall, then this aerial position point is moved apart building masonry wall.
If the aerial position point is positioned at the corridor, then with the close center, corridor of aerial position point; If there is the turning in this corridor, then the aerial position point is arranged on corner.
If the aerial position point is positioned at external door and window place, the aerial position point should be moved apart this external door and window place.
If there is other requirement at aerial position point place, be positioned at the illuminating lamp installation place as location point, can suitably adjust location point.
If aerial position point general position point does not then need to adjust.
Step S330 uses default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result.
Antenna arrangement to indoor distributed radio network is carried out Computer Simulation, and according to predefined propagation model, input aerial lays position and antenna distribution density, calculates the emulation of coverage capability result of the current layout of indoor distributed radio network.
Comprise among the emulation of coverage capability result: CPICH E after the emulation of each point in the target coverage zone
C/ N
OThe value of (signal to noise ratio of Primary Common Pilot Channel), and corresponding curve plotting figure.
Step S340 judges that whether the emulation of coverage capability result satisfies default coverage goal requirement, if satisfy, and execution in step S350 then; If satisfy execution in step S370.
From angle of coverage, indoor distributed wireless networks ruton often is subject to down link, just is subject to cover the signal to noise ratio that the edge can reach.
The default coverage goal of embodiment is a covering quality, and specific targets are CPICH E
C/ N
O
Step S350 calculates the wireless signal field attenuation gradient of aerial position point on the traverse line of dividing according to the simulation result of the current layout of antenna, according to this wireless signal field attenuation gradient adjustment aerial position.
Antenna lays the initial setting up of position can finish the work that integral body lays profile, but considers the structure of actual room and the loss of body of wall, and the demand of the cost of layout of compromising simultaneously also will be adjusted automatically to the position that lays of antenna.
Obtain the simulation result of current layout.For each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction
The embodiment of described step S350 as shown in Figure 5.
Step S3501 reads the last simulation result.
Step S3502 is provided with mobile set and stable set.
Mobile set is used to comprise not processed aerial position point, and stable set is used to comprise has handled the aerial position point.When initial with all etc. pending aerial position point put into mobile set, stable set is made as sky.
Step S3503 travels through the point of the aerial position in the mobile set.
Step S3504 is to the antenna coverage direction travel direction line division when the aerial position point of pre-treatment.
Concrete granularity of division equalization algorithm speed and available accuracy require to set.
Step S3505 according to the simulation result that reads, calculates the wireless signal field attenuation gradient on all directions line respectively.
Step S3506, the traverse line of judgement gradient maximum is preserved.
Step S3507 moves antenna according to field strength attenuation direction on this traverse line, default moving step length is expressed as Δ.Moving step length is set according to actual conditions, reduces moving step length and can improve the algorithm accuracy, and increasing moving step length can lower operation time, but needs to guarantee convergence.
Step S3508 judges whether adjusted aerial position point is positioned at can not put a little.Can not put a little in this way, then execution in step S3509; Otherwise, execution in step S3510.
The position is building masonry wall or other location points that can't place owing to reasons such as building construction and property if layout, and is called and can not puts a little.
Step S3509 is along aerial position being put rollback displacement moving step length in the other direction.
Step S3510 deletes this aerial position point from mobile set, this aerial position point is added stable set.
Step S3511 judges whether mobile set is empty, if be not empty, and execution in step S3503, otherwise, adjust and finish.
Step S360 searches for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts antenna distribution density, execution in step S330 according to the coverage hole and the overlapping area of coverage.
The adjustment of antenna distribution density considers whether have the coverage hole or the signal overlap area of coverage, if exist the blind area need increase antenna arrangement; If there is the overlapping area of coverage, consider the cost of layout requirement, under the prerequisite that satisfies the covering quality target, reduce antenna amount.
The embodiment of described step S360 as shown in Figure 6.
Step S361 reads the last simulation result.
Step S362, according to simulation result, the search signal coverage hole and the overlapping area of coverage.
The blind area signal threshold values of preset signals coverage hole correspondence and the signal received power threshold values of overlapping area of coverage correspondence; If the power of regional received signal less than blind area signal threshold values, should the zone be the signal coverage hole then; If the power of regional received signal is greater than overlapping region signal received power threshold values, this zone folded area of coverage of attaching most importance to then.
Step S363, if there is the coverage hole of signal, execution in step S364 then; Otherwise, execution in step S365.
Step S364 increases aerial position point, execution in step S365 at received power minimum point place, blind area.
Step S365, the overlapping area of coverage of detection signal.
Step S366, the folded area of coverage signal quality of counterweight is judged, if the power of received signal is higher than default thresholding, shows that this zone exists can remove location point, then execution in step S367; If the power of received signal is lower than thresholding, show that this zone does not exist can remove location point, then adjust and finish.
Step S367 according to the situation of overlapping each antenna of the area of coverage, carries out contribution degree to antenna and calculates.
Antenna is the coverage condition of antenna in this zone to this area of coverage contribution degree, if certain is a covering overlapping area a bit, the computational methods of antenna contribution degree are as follows:
The contribution degree of antenna N=(antenna N is in this received power value/this total received power value) * 100%
Step S368 deletes the aerial position point of overlapping covered interior contribution degree minimum.
Step S370 judges whether comprise the coverage hole or the overlapping area of coverage in the described distributed radio network, if comprise, then carry out described step S360 according to described simulation result, otherwise, execution in step S380.
Concrete determination methods be with simulation result with high threshold values and low valve valve relatively, if less than low valve valve then judge and have the blind area, has the repetition area of coverage if be higher than high threshold values then judge.
Step S380 according to current layout account cost, judges that whether cost satisfies default cost target call, if do not satisfy, and execution in step S350 then; If satisfy, then arrange and finish.
According to the distribution density of antenna and the situation of antenna, adjust device costs such as antenna, feeder line.
By the judgement item by item and the realization of above-mentioned steps, the present invention can export the antenna arrangement scheme of indoor wireless networks automatically, improves efficient and accuracy that indoor distribution antenna is arranged.
A kind of automatic arrangement system of indoor distributed radio network antenna as shown in Figure 7.
Initial setting up module 100 is used to treat the antenna distribution density of indoor distributed radio network of layout and antenna and lays the position and carry out initial setting up.
Position adjusting type modules 400 is used for the wireless signal field attenuation gradient of simulation result calculating aerial position point on the traverse line of dividing according to the current layout of antenna, adjusts aerial position according to this wireless signal field attenuation gradient.
Another preferred implementation as shown in Figure 8.
In another preferred embodiment,
Embodiment is as described below.
Initial setting up module 100 is further used for according to the complex structure degree of indoor distributed radio network and user density indoor distributed radio network being classified, for each type is provided with corresponding coverage density parameter value; Judge the type that indoor distributed radio network to be arranged is affiliated, determine the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged; The antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged; The even cloth of antenna is put in the zone that indoor distributed radio network need cover.
Initial setting up module 100 also is used for by following principle antenna being laid when even cloth is put in the zone that indoor distributed radio network need cover with antenna to be adjusted,
If the aerial position point is positioned at building masonry wall, then this aerial position point is moved apart building masonry wall;
If the aerial position point is positioned at the corridor, then,, then the aerial position point is arranged on this corner if there is the turning in this corridor with the close center, corridor of aerial position point;
If the aerial position point is positioned at external door and window place, this aerial position point should be moved apart this external door and window place.
Position adjusting type modules 400 is further used for obtaining the simulation result of current layout; For each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction.
Position adjusting type modules 400 is used to also when the portable antenna location point judge whether the location point at place, the mobile back of aerial position point is to put a little, if then this aerial position point is preset step-length to moving opposite direction rollback second.Among the embodiment, the first default step-length and the second default step-length equate.
Those skilled in the art can also carry out various modifications to above content under the condition that does not break away from the definite the spirit and scope of the present invention of claims.Therefore scope of the present invention is not limited in above explanation, but determine by the scope of claims.
Claims (16)
1. the automatic method for arranging of an indoor distributed radio network antenna is characterized in that, comprising:
Step 1 is treated the antenna distribution density of indoor distributed radio network of layout and antenna and is laid the position and carry out initial setting up;
Step 2 is used default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result;
Step 3 judges whether described emulation of coverage capability result satisfies default coverage goal requirement, if do not satisfy, then execution in step 4; If satisfy, then arrange and finish;
Step 4 is calculated the wireless signal field attenuation gradient of aerial position point on the traverse line of dividing according to the simulation result of the current layout of antenna, according to described wireless signal field attenuation gradient adjustment aerial position;
Step 5 is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts the antenna distribution density according to the described coverage hole and the described overlapping area of coverage, carries out described step 2.
2. the automatic method for arranging of indoor distributed radio network antenna according to claim 1 is characterized in that,
Also comprise before layout is finished in the described step 3,
Step 6 according to current layout account cost, judges whether cost satisfies default cost target call, if do not satisfy, then execution in step 4.
3. the automatic method for arranging of indoor distributed radio network antenna according to claim 1 is characterized in that, described step 1 further is,
Step 31 is classified to indoor distributed radio network according to the complex structure degree and the user density of indoor distributed radio network, for each type is provided with corresponding coverage density parameter value;
Step 32 is judged the type that indoor distributed radio network to be arranged is affiliated, determines the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged;
Step 33, the antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged;
Step 34 is put into the even cloth of antenna in the zone that described indoor distributed radio network need cover.
4. the automatic method for arranging of indoor distributed radio network antenna according to claim 3 is characterized in that,
Described step 34 also comprises, by following principle antenna laid and adjusts,
If the aerial position point is positioned at building masonry wall, then described aerial position point is moved apart building masonry wall;
If the aerial position point is positioned at the corridor, then,, then the aerial position point is arranged on described corner if there is the turning in described corridor with the close center, corridor of aerial position point;
If the aerial position point is positioned at external door and window place, described aerial position point should be moved apart described external door and window place.
5. the automatic method for arranging of indoor distributed radio network antenna according to claim 1 is characterized in that,
Described step 4 further is,
Step 51 is obtained the simulation result of current layout;
Step 52, for each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of described current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction.
6. the automatic method for arranging of indoor distributed radio network antenna according to claim 5 is characterized in that,
Described step 52 also comprises,
Step 61 judges whether the location point at place, the mobile back of described aerial position point is to put a little, if then described aerial position point is preset step-length to moving opposite direction rollback second.
7. the automatic method for arranging of indoor distributed radio network antenna according to claim 1 is characterized in that,
Described step 5 further is,
Step 71 is obtained the simulation result of current layout;
Step 72 is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna;
Step 73 if there is coverage hole, then increases the aerial position point at described coverage hole received power minimum point place;
Step 74 detects the described overlapping area of coverage, if overlapping area of coverage signal strength signal intensity is higher than pre-set threshold value, then the antenna in the described overlapping area of coverage is carried out contribution degree and calculates, and the aerial position point of contribution degree minimum is removed.
8. the automatic method for arranging of indoor distributed radio network antenna according to claim 1 is characterized in that,
Also comprise before layout is finished in the described step 3,
Step 81 judges whether comprise the coverage hole or the overlapping area of coverage in the described distributed radio network, if comprise, then carry out described step 5 according to described simulation result, otherwise, carry out described layout complete operation.
9. the automatic arrangement system of an indoor distributed radio network antenna is characterized in that, comprising:
The initial setting up module is used to treat the antenna distribution density of indoor distributed radio network of layout and antenna and lays the position and carry out initial setting up;
Emulation module is used to use default propagation model the current layout of the antenna of indoor distributed radio network is carried out emulation, obtains the emulation of coverage capability result;
Cover judge module, be used to judge whether described emulation of coverage capability result satisfies default coverage goal requirement, if satisfy, run location adjusting module then; If satisfy, then arrange and finish;
Position adjusting type modules is used for the wireless signal field attenuation gradient of simulation result calculating aerial position point on the traverse line of dividing according to the current layout of antenna, adjusts aerial position according to described wireless signal field attenuation gradient;
The density adjusting module is searched for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna, adjusts the antenna distribution density according to the described coverage hole and the described overlapping area of coverage, moves described emulation module.
10. the automatic arrangement system of indoor distributed radio network antenna according to claim 9 is characterized in that,
Described covering judge module also is used for the start-up cost judge module when judging described emulation of coverage capability result and satisfy default coverage goal requirement;
Described cost judge module is used for according to current layout account cost, judges that whether cost satisfies default cost target call, if do not satisfy, then moves described position adjusting type modules.
11. the automatic arrangement system of indoor distributed radio network antenna according to claim 9 is characterized in that,
Described initial setting up module is further used for according to the complex structure degree of indoor distributed radio network and user density indoor distributed radio network being classified, for each type is provided with corresponding coverage density parameter value; Judge the type that indoor distributed radio network to be arranged is affiliated, determine the coverage density parameter value of indoor distributed radio network to be arranged according to the type under the indoor distributed radio network to be arranged; The antenna amount of determining indoor distributed radio network according to the area coverage and the coverage density parameter value of indoor distributed radio network to be arranged; The even cloth of antenna is put in the zone that described indoor distributed radio network need cover.
12. the automatic arrangement system of indoor distributed radio network antenna according to claim 11 is characterized in that,
Described initial setting up module also is used for by following principle antenna being laid when even cloth is put in the zone that described indoor distributed radio network need cover with antenna to be adjusted,
If the aerial position point is positioned at building masonry wall, then described aerial position point is moved apart building masonry wall;
If the aerial position point is positioned at the corridor, then,, then the aerial position point is arranged on described corner if there is the turning in described corridor with the close center, corridor of aerial position point;
If the aerial position point is positioned at external door and window place, described aerial position point should be moved apart described external door and window place.
13. the automatic arrangement system of indoor distributed radio network antenna according to claim 9 is characterized in that,
Described position adjusting type modules is further used for obtaining the simulation result of current layout; For each aerial position point, travel direction is divided, and calculates the wireless signal field attenuation gradient on the traverse line of each division according to the simulation result of described current layout; Aerial position point is moved the first default step-length in the traverse line upper edge of attenuation gradient maximum field strength attenuation direction.
14. the automatic arrangement system of indoor distributed radio network antenna according to claim 13 is characterized in that,
Described position adjusting type modules is used to also when the portable antenna location point judge whether the location point at place, the mobile back of described aerial position point is to put a little, if then described aerial position point is preset step-length to moving opposite direction rollback second.
15. the automatic arrangement system of indoor distributed radio network antenna according to claim 9 is characterized in that,
Described density adjusting module is further used for obtaining the simulation result of current layout; Search for the coverage hole and the overlapping area of coverage of indoor distributed radio network according to the simulation result of the current layout of antenna; If there is coverage hole, then increase the aerial position point at described coverage hole received power minimum point place; Detect the described overlapping area of coverage,, then the antenna in the described overlapping area of coverage is carried out contribution degree and calculate, the aerial position point of contribution degree minimum is removed if overlapping area of coverage signal strength signal intensity is higher than pre-set threshold value.
16. the automatic method for arranging of indoor distributed radio network antenna according to claim 9 is characterized in that,
Described covering judge module is when judging described emulation of coverage capability result and satisfy default coverage goal requirement, also be used for judging according to described simulation result whether described distributed radio network comprises the coverage hole or the overlapping area of coverage, if comprise, then start described density adjusting module, otherwise, carry out described layout complete operation.
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