CN103179582B - A kind of room subsystem site selecting method and system - Google Patents

Abstract

The invention discloses a kind of room subsystem site selecting method and system, method includes step: extracts measurement report MR, determines the positional information of MR；By assessment area according to specifying yardstick to carry out rasterizing process, the positional information of each grid generated after obtaining rasterizing；According to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；Obtain buildings network structure index；The address setting up room subsystem is determined according to described buildings network structure index.System includes data collection and MR positioning subsystem, MR rasterizing and grid network structure Index for Calculation subsystem, buildings network Structure Calculation subsystem and room subsystem addressing subsystem.Have employed technical scheme, it is possible to according to MR declaration form, the most objectively calculate optimal subsystem address, room, and then reduce interference and fully absorb traffic, solve network problem.

Description

A kind of room subsystem site selecting method and system

Technical field

The wireless network planning that the present invention relates to mobile communication optimizes field, particularly to a kind of room subsystem site selecting method and system

Background technology

GSM (globalsystemformobilecommunications, global system for mobile communications) network structure is exactly the laying and configuring of base station in network, including station spacing, stand high, antenna direction and have a down dip, cell carrier configuration, the distribution of room inside/outside website, repeater distribution etc..The complicated network structure refers to that wireless signal is mixed and disorderly, overlapping and covers and to cross covering phenomenon serious, and causing wireless environment to deteriorate, frequency difficulty is arranged, and disturbs and makes an uproar rising the end of with.

Owing to the complexity of GSM network structure directly affects the quality of GSM network, therefore Topological expansion is the important topic that GSM network optimizes.GSM network structure optimization (i.e. reducing network structure index) means include reducing station height, adjustment antenna feeder azimuth absorbs the means such as macro station traffic with the traffic between angle of declination, Jun Heng community with building room subsystem, wherein build room subsystem absorb macro station traffic means in terms of optimizing network structure effect clearly and operability is extremely strong, be therefore the wide variety of means of operator of China Mobile.

At present, it is to complain situation and with reference to the macro station telephone traffic covering building with reference to certain building that room subsystem builds main method, from numerous buildings, selection needs most the building of construction room subsystem, i.e. carries out room subsystem addressing according to artificial experience coarse analysis.

As it is shown in figure 1, existing room subsystem site selecting method operates according to following steps:

1 pair of multiple building carries out complaining statistical analysis and building telephone traffic to estimate, it is ensured that the construction of room subsystem can solve the problem that relatively large user's perception problems in network；

Near 2 pairs of buildings, macro station telephone traffic is analyzed, it is ensured that after the subsystem of building room, it is possible to absorb the traffic of high traffic community, alleviates the traffic pressure of macro station；

The analysis of 3 summary 1 and 2 judges, selects i.e. to can solve the problem that the building deployment room subsystem that relatively multi-user's perception problems can absorb again macro station traffic.

Owing to the method for existing room subsystem addressing is substantially manually experiential operating, the operator that wherein customer complaint is different from absorbing the expection of macro station traffic effect has different judgements, the most important thing is that room subsystem absorbs this link determination methods of macro station traffic the most coarse, after can not guaranteeing room subsystem construction, macro station traffic is absorbed the assessment of quantitative, therefore can cause not selecting optimal building to build room subsystem, thus the room subsystem built up can be made cannot to effectively reduce interference and fully absorb traffic.

Summary of the invention

It is an object of the invention to provide a kind of room subsystem site selecting method and system, it is possible to according to MR declaration form, determine more preferably room subsystem address.

In one embodiment of the invention, it is provided that a kind of room subsystem site selecting method, including step: extract measurement report MR, determine the positional information of MR；By assessment area according to specifying yardstick to carry out rasterizing process, the positional information of each grid generated after obtaining rasterizing；According to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；The grid covered according to building or the area of grid and the network structure index of grid covered, obtain buildings network structure index；The address setting up room subsystem is determined according to described buildings network structure index.

A kind of room subsystem site selecting method of the present invention, further include steps of the BCCH (BroadcastControlChannel according to six adjacent areas comprised in MR declaration form, BCCH) the level RxLev (ReceivedSignalLevel of channel, received signal level) and the longitude and latitude of base station of described six adjacent areas, it is calculated the longitude and latitude that MR occurs

A kind of room subsystem site selecting method of the present invention, described process by assessment area and includes according to specifying yardstick to carry out rasterizing: assessment area divides according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtains the longitude and latitude of each grid.

A kind of room subsystem site selecting method of the present invention, described determine that the MR belonging to each grid includes: compared with the positional information of grid by the positional information of each MR, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

A kind of room subsystem site selecting method of the present invention, the network structure index of each grid is calculated according to the MR belonging to each grid, the algorithm used is as follows: MR declaration form network structure index=count * 100% less than TCH (TrafficChannel, the Traffic Channel) carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid；Wherein, G_Constr is grid network structure index, and M_Constr is the network structure index of MR, and N is all of MR number in this grid.

A kind of room subsystem site selecting method of the present invention, uses algorithm to be calculated buildings network structure index, and described algorithm is as follows: $B\_\mathrm{Constr}=\mathrm{\ΣBG}\_{\mathrm{Area}}_i*G\_{\mathrm{Constr}}_i*G\_{\mathrm{Traffic}}_i/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_i*G\_{\mathrm{Area}}_i)$

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iFor the area that i-th grid is overlapping.

A kind of room subsystem site selecting method of the present invention, utilize valuation functions that the owned building in assessment area is weighted sequence, described valuation functions is shown below: F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint is wherein, B_Constr is buildings network structure index, B_Traffic is that the telephone traffic under building covers covers lower grid or part grid traffic sum equal to building, B_Complaint is the interior number of times occurring to complain of building, K1, K2 and K3 are weight coefficients；Take the maximum building of F value as the building building room subsystem.

In another embodiment of the present invention, provide a kind of room subsystem site selection system, this system includes data collection and MR positioning subsystem, MR rasterizing and grid network structure Index for Calculation subsystem, buildings network Structure Calculation subsystem and room subsystem addressing subsystem, wherein, described data collection and MR positioning subsystem are used for extracting measurement report MR, determine the positional information of MR；Described MR rasterizing and grid network structure Index for Calculation subsystem are for carrying out rasterizing process by assessment area according to appointment yardstick, the positional information of each grid generated after obtaining rasterizing, it is additionally operable to according to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；Described buildings network Structure Calculation subsystem is used for area and the network structure index of the grid covered of grid or the grid covered according to building, obtains buildings network structure index；Described room subsystem addressing subsystem sets up the address of room subsystem according to described buildings network structure index for determining.

A kind of room subsystem site selection system of the present invention, described data collection and positioning subsystem are further used for the level RxLev of the BCCH channel according to six adjacent areas comprised in MR declaration form and the longitude and latitude of the base station of described six adjacent areas, are calculated the longitude and latitude that MR occurs.

A kind of room subsystem site selection system of the present invention, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for dividing assessment area according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtain the longitude and latitude of each grid.

A kind of room subsystem site selection system of the present invention, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for comparing the positional information of each MR with the positional information of grid, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

A kind of room subsystem site selection system of the present invention, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for calculating the network structure index of each grid according to the MR belonging to each grid, and the algorithm of employing is as follows:

MR declaration form network structure index=count * 100% less than the TCH carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；

Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid；

$G\_\mathrm{Constr}=\underset{i}{\mathrm{\Σ}}M\_\mathrm{Constr}/N$

Wherein, G_Constr is grid network structure index, and M_Constr is the network structure index of MR, and N is all of MR number in this grid.

A kind of room subsystem site selection system of the present invention, buildings network Structure Calculation subsystem is further used for using algorithm to be calculated buildings network structure index, and described algorithm is as follows:

$B\_\mathrm{Constr}=\mathrm{\ΣBG}\_{\mathrm{Area}}_i*G\_{\mathrm{Constr}}_i*G\_{\mathrm{Traffic}}_i/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_i*G\_{\mathrm{Area}}_i)$

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iFor the area that i-th grid is overlapping.

A kind of room subsystem site selection system of the present invention, described room subsystem addressing subsystem is further used for utilizing valuation functions that the owned building in assessment area is weighted sequence, and described valuation functions is shown below:

F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint

Wherein, B_Constr is buildings network structure index, and B_Traffic is that the telephone traffic under building covers covers lower grid or part grid traffic sum equal to building, and B_Complaint is the interior number of times occurring to complain of building, K1, K2 and K3 are weight coefficients.

The method have technical effect that, it is possible to according to MR declaration form, the most objectively calculate optimal subsystem address, room, and then reduce interference and fully absorb traffic, solve network problem.

Other features and advantages of the present invention will illustrate in the following description, and, partly become apparent from description, or understand by implementing the present invention.The purpose of the present invention and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.

Below by drawings and Examples, technical scheme is described in further detail.

Accompanying drawing explanation

Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is used for together with embodiments of the present invention explaining the present invention, is not intended that limitation of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart of room of the prior art subsystem site selecting method；

Fig. 2 is the flow chart of the room subsystem site selecting method in the specific embodiment of the invention one；

Fig. 3 is the schematic diagram of the room subsystem site selection system in the specific embodiment of the invention two.

Detailed description of the invention

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.

Below with reference to Figure of description, describe the present invention in detail.

In one embodiment of the invention, it is provided that a kind of room subsystem site selecting method, the method comprising the steps of as shown in Figure 2: extracts measurement report MR, determines the positional information of MR；By assessment area according to specifying yardstick to carry out rasterizing process, the positional information of each grid generated after obtaining rasterizing；According to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；The grid covered according to building or the area of grid and the network structure index of grid covered, obtain buildings network structure index；The address setting up room subsystem is determined according to described buildings network structure index.

A kind of room subsystem site selecting method of the present invention, further include steps of the level RxLev of BCCH channel according to six adjacent areas comprised in MR declaration form and the longitude and latitude of the base station of described six adjacent areas, utilizing algorithm, be calculated the longitude and latitude that MR occurs, described algorithm is as follows:

K((S_Lat_m-M_Lat_j)²+(S_Lon_m-M_Lon_j)²)^1/2=TxPwr_m-M_RxLev_j

Wherein, m is 1 to 6, represents the base station at place, six communities；J is the numbering of MR, positions jth MR；S_Lat_mAnd S_Lon_mRepresent latitude and the longitude of m-th base station；M_Lat_jAnd M_Lon_jRepresent latitude and the longitude of jth MR；TxPwr_mRepresent the transmitting power of m-th base station；K is constant；Base station corresponding to six adjacent areas provides above formula respectively, utilizes method of least square to obtain MR longitude and latitude.

A kind of room subsystem site selecting method of the present invention, described process by assessment area and includes according to specifying yardstick to carry out rasterizing: assessment area divides according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtains the longitude and latitude of each grid.

A kind of room subsystem site selecting method of the present invention, described determine that the MR belonging to each grid includes: compared with the positional information of grid by the positional information of each MR, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

A kind of room subsystem site selecting method of the present invention, calculate the network structure index of each grid according to the MR belonging to each grid, the algorithm of employing is as follows: MR declaration form network structure index=count * 100% less than the TCH carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid；Wherein, G_Constr is grid network structure index, and M_Constr is the network structure index of MR, and N is all of MR number in this grid.

A kind of room subsystem site selecting method of the present invention, uses algorithm to be calculated buildings network structure index, and described algorithm is as follows: $B\_\mathrm{Constr}=\mathrm{\ΣBG}\_{\mathrm{Area}}_i*G\_{\mathrm{Constr}}_i*G\_{\mathrm{Traffic}}_i/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_i*G\_{\mathrm{Area}}_i)$

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iFor the area that i-th grid is overlapping.

A kind of room subsystem site selecting method of the present invention, utilize valuation functions that the owned building in assessment area is weighted sequence, described valuation functions is shown below: F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint is wherein, B_Constr is buildings network structure index, B_Traffic is that the telephone traffic under building covers covers lower grid or part grid traffic sum equal to building, B_Complaint is the interior number of times occurring to complain of building, K1, K2 and K3 are weight coefficients；Take the maximum building of F value as the building building room subsystem.

As shown in Figure 3, in one embodiment of the invention, provide a kind of room subsystem site selection system, this system includes data collection and MR positioning subsystem, MR rasterizing and grid network structure Index for Calculation subsystem, buildings network Structure Calculation subsystem and room subsystem addressing subsystem, wherein, described data collection and MR positioning subsystem are used for extracting measurement report MR, determine the positional information of MR；Described MR rasterizing and grid network structure Index for Calculation subsystem are for carrying out rasterizing process by assessment area according to appointment yardstick, the positional information of each grid generated after obtaining rasterizing, it is additionally operable to according to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；Described buildings network Structure Calculation subsystem is used for area and the network structure index of the grid covered of grid or the grid covered according to building, obtains buildings network structure index；Described room subsystem addressing subsystem sets up the address of room subsystem according to described buildings network structure index for determining.

A kind of room subsystem site selection system of the present invention, described data collection and MR positioning subsystem are further used for collecting the signaling of ABIS interface, extract MR from collected signaling.

A kind of room subsystem site selection system of the present invention, described data collection and MR positioning subsystem are further used for the level RxLev of the BCCH channel according to six adjacent areas comprised in MR declaration form and the longitude and latitude of the base station of described six adjacent areas, utilize algorithm, being calculated the longitude and latitude that MR occurs, described algorithm is as follows:

K((S_Lat_m-M_Lat_j)²+(S_Lon_m-M_Lon_j)²)^1/2=TxPwr_m-M_RxLev_j

Wherein, m is 1 to 6, represents the base station at place, six communities；J is the numbering of MR, positions jth MR；S_Lat_mAnd S_Lon_mRepresent latitude and the longitude of m-th base station；M_Lat_jAnd M_Lon_jRepresent latitude and the longitude of jth MR；TxPwr_mRepresent the transmitting power of m-th base station；K is constant；Base station corresponding to six adjacent areas provides above formula respectively, utilizes method of least square to obtain MR longitude and latitude.

A kind of room subsystem site selection system of the present invention, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for dividing assessment area according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtain the longitude and latitude of each grid.

A kind of room subsystem site selection system of the present invention, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for comparing the positional information of each MR with the positional information of grid, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

A kind of room subsystem site selection system of the present invention, the most described MR rasterizing and grid network structure Index for Calculation subsystem are further used for calculating the network structure index of each grid according to the MR belonging to each grid, and the algorithm of employing is as follows: MR declaration form network structure index=count * 100% less than the TCH carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid；Wherein, G_Constr is grid network structure index, and M_Constr is the network structure index of MR, and N is all of MR number in this grid.

A kind of room subsystem site selection system of the present invention, buildings network Structure Calculation subsystem is further used for using algorithm to be calculated buildings network structure index, and described algorithm is as follows:

$B\_\mathrm{Constr}=\mathrm{\ΣBG}\_{\mathrm{Area}}_i*G\_{\mathrm{Constr}}_i*G\_{\mathrm{Traffic}}_i/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_i*G\_{\mathrm{Area}}_i)$

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iFor the area that i-th grid is overlapping.

A kind of room subsystem site selection system of the present invention, described room subsystem addressing subsystem is further used for utilizing valuation functions that the owned building in assessment area is weighted sequence, and evaluation building is suitable for building the function of room subsystem and is shown below:

F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint

Wherein, B_Constr is buildings network structure index, and B_Traffic is that the telephone traffic under building covers covers lower grid or part grid traffic sum equal to building, and B_Complaint is the interior number of times occurring to complain of building, K1, K2 and K3 are weight coefficients.

In a project of the room subsystem site selecting method based on the assessment of MR network structure and system that use the present invention, assess by MR data are become more meticulous and analyze and adjust substation location, room and parameter, thus improve the network structure of * * * * branch company GSM network, reduce net internal interference, promote network quality, verify this accuracy based on MR device and effectiveness simultaneously.

The optimization region of this project includes * * area 112 GSM900 communities, 32 Ge Shifen communities.This company of city has also put into substantial amounts of manpower and materials and keeps the system index in this region to be in the highest level for a long time, but owing to network environment is complicated, can there is the problems such as the quality that caused by interference unavoidably.The MR report obtained, the problem points being accurately positioned in region are collected in this suboptimization mainly by software analysis.Carry out efficient intelligent search and option screening, network optimization region is carried out the adjustment of entirety, thus the lifting of indices in reaching region, promotes the use perceptibility of city user.

Project flow process is as follows:

1, data collection

2, MR location

According to MR location algorithm, reporting the level RxLev (incoming level) of 6 community BCCH at some point, and the longitude and latitude of these six neighbor base stations positions, formula is as follows:

K((S_Lat_m-M_Lat_j)²+(S_Lon_m-M_Lon_j)²)^1/2=TxPwr_m-M_RxLev_j

1st measurement report calculation of longitude & latitude (m refers to 6 reporting neighboring cells):

$\left\{\begin{array}{c}K{(S\_{\mathrm{Lat}}_1-M\_{\mathrm{Lat}}_1)}^2+{(S\_{\mathrm{Lon}}_1-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_1-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_2-M\_{\mathrm{Lat}}_1)}^2+{(S\_{\mathrm{Lon}}_2-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_2-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_3-{M\_\mathrm{Lat}}_1)}^2+{(S\_{\mathrm{Lon}}_3-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_3-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_4-M\_{\mathrm{Lat}}_1)}^2+{(S\_{\mathrm{Lon}}_4-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_4-{M\_\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_5-M\_{\mathrm{Lat}}_1)}^2+{({S\_\mathrm{Lon}}_5-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_5-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_6-M\_{\mathrm{Lat}}_1)}^2+{(S\_{\mathrm{Lon}}_6-M\_{\mathrm{Lon}}_1)}^2=_{1/2}{\mathrm{TxPwr}}_6-{M\_\mathrm{RxLev}}_1\end{array}\right.$

Base station corresponding to six adjacent areas can provide above formula, and method of least square finally can be utilized to obtain measurement report position: M_Lat₁And M_Lon₁；

2nd measurement report calculation of longitude & latitude (six adjacent areas):

$\left\{\begin{array}{c}K{(S\_{\mathrm{Lat}}_1-M\_{\mathrm{Lat}}_2)}^2+{(S\_{\mathrm{Lon}}_1-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_1-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_2-M\_{\mathrm{Lat}}_2)}^2+{(S\_{\mathrm{Lon}}_2-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_2-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_3-{M\_\mathrm{Lat}}_2)}^2+{(S\_{\mathrm{Lon}}_3-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_3-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_4-M\_{\mathrm{Lat}}_2)}^2+{(S\_{\mathrm{Lon}}_4-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_4-{M\_\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_5-M\_{\mathrm{Lat}}_2)}^2+{({S\_\mathrm{Lon}}_5-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_5-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_6-M\_{\mathrm{Lat}}_2)}^2+{(S\_{\mathrm{Lon}}_6-M\_{\mathrm{Lon}}_2)}^2=_{1/2}{\mathrm{TxPwr}}_6-{M\_\mathrm{RxLev}}_1\end{array}\right.$

Base station corresponding to six adjacent areas can provide above formula, and method of least square finally can be utilized to obtain measurement report position: M_Lat₂And M_Lon₂；

……

By that analogy, n-th measurement report draws

$\left\{\begin{array}{c}K{(S\_{\mathrm{Lat}}_1-M\_{\mathrm{Lat}}_N)}^2+{(S\_{\mathrm{Lon}}_1-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_1-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_2-M\_{\mathrm{Lat}}_N)}^2+{(S\_{\mathrm{Lon}}_2-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_2-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_3-{M\_\mathrm{Lat}}_N)}^2+{(S\_{\mathrm{Lon}}_3-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_3-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_4-M\_{\mathrm{Lat}}_N)}^2+{(S\_{\mathrm{Lon}}_4-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_4-{M\_\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_5-M\_{\mathrm{Lat}}_N)}^2+{({S\_\mathrm{Lon}}_5-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_5-M\_{\mathrm{RxLev}}_1\\ K{(S\_{\mathrm{Lat}}_6-M\_{\mathrm{Lat}}_N)}^2+{(S\_{\mathrm{Lon}}_6-M\_{\mathrm{Lon}}_N)}^2=_{1/2}{\mathrm{TxPwr}}_6-{M\_\mathrm{RxLev}}_1\end{array}\right.$

Base station corresponding to six adjacent areas can provide above formula, and method of least square finally can be utilized to obtain measurement report position: M_Lat_NAnd M_Lon_N；

Calculate, by above method, each MR measurement report that the every 480ms of mobile phone reports, map is carried out render distribution, obtain the location figure of MR.

3, network evaluation

Network structure index in the area coverage of Evaluation Room branch website and other index of correlation:

Computational methods according to buildings network structure:

$B\_\mathrm{Constr}=\mathrm{\ΣBG}\_{\mathrm{Area}}_i*G\_{\mathrm{Constr}}_i*G\_{\mathrm{Traffic}}_i/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_i*G\_{\mathrm{Area}}_i)$

Building network structure index in N number of grid is drawn by algorithm above:

$B\_\mathrm{Constr}=\underset{i}{\mathrm{\Σ}}(\mathrm{BG}\_{\mathrm{Area}}_1*G\_{\mathrm{Constr}}_1*G\_{\mathrm{Traffic}}_1+{\mathrm{BG}\_\mathrm{Area}}_2*{G\_\mathrm{Constr}}_2*{G\_\mathrm{Traffic}}_2+....$

$+\mathrm{BG}\_{\mathrm{Area}}_n*{G\_\mathrm{Constr}}_n*{G\_\mathrm{Traffic}}_n/\underset{i}{\mathrm{\Σ}}(G\_{\mathrm{Traffic}}_1*{G\_\mathrm{Area}}_1+{G\_\mathrm{Traffic}}_2*{G\_\mathrm{Area}}_2+....$

$G\_{\mathrm{Traffic}}_n*{G\_\mathrm{Area}}_{1n})$

Eventually pass through network structure index in calculating overlay area as follows:

The every index of network structure	Exponential quantity
		Network structure index	0.207258
Overlapping cover index	3.0555
		Redundant cover index	0.1856
Weak coating ratio	2.0%
		Cross coating ratio	6.73%

4, optimization aim and condition setting

(1) optimization aim is set: combine network practical situation, selects this suboptimization to need the desired value that the KPI index promoted reaches with expectation, and the proportion (so as to the different KPI index of balance) that different KPI index occupies in this suboptimization.

(2) include arranging and optimize region and buffer area: the cellular engineering parameter optimizing in region can be adjusted based on qualifications during optimizing, cellular engineering parameter in buffer area optimize during do not adjust, but assess engineering parameter prioritization scheme time to consider itself and optimize community, district or between impact.

5, substation location in room optimizes computing

Utilize valuation functions that building is weighted sequence, plan that optimal room subsystem builds address.

Room subsystem addressing subsystem utilizes valuation functions that building is weighted sequence, plans that optimal room subsystem builds address.

The function being suitable for building room subsystem according to evaluation building is shown below:

F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint

Consider that K1, K2 and K3 weight coefficient is configured, in conjunction with B_Consti buildings network structure index by field condition, telephone traffic under the covering of B_Traffic building, the number of times complained occurs in B_Complaint building, and in drawing region, F value is maximum, finally determines that indoor heating system chooses site.

In sum, in the present invention, a kind of room subsystem site selecting method described in employing and system, it is possible to according to MR declaration form, the most objectively calculates optimal subsystem address, room, and then reduces interference and fully absorb traffic, solve network problem.

Claims (10)

1. a room subsystem site selecting method, it is characterised in that include step:

Extract measurement report MR, determine the positional information of MR；

By assessment area according to specifying yardstick to carry out rasterizing process, the positional information of each grid generated after obtaining rasterizing；

According to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；

The grid covered according to building or the area of grid and the network structure index of grid covered, obtain buildings network structure index；

The address setting up room subsystem is determined according to described buildings network structure index；

Wherein, using algorithm to be calculated buildings network structure index, described algorithm is as follows:

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure index under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iArea for i-th grid；

Utilizing valuation functions that the owned building in assessment area is weighted sequence, described valuation functions is shown below:

F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint

Wherein, B_Constr is buildings network structure index, and B_Traffic is the telephone traffic under building covers, lower grid or part grid traffic sum is covered equal to building, B_Complaint is the interior number of times occurring to complain of building, and K1, K2 and K3 are weight coefficients；

Take the maximum building of F value as the building building room subsystem.

2. the method for claim 1, it is characterized in that, the positional information of the described MR of determination includes: according to the received signal level RxLev of the BCCH channel of broadcast control of six adjacent areas comprised in MR declaration form and the longitude and latitude of the base station of described six adjacent areas, be calculated the longitude and latitude that MR occurs.

3. method as claimed in claim 1 or 2, it is characterised in that described assessment area is processed and includes according to specifying yardstick to carry out rasterizing: assessment area is divided according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtains the longitude and latitude of each grid.

4. method as claimed in claim 1 or 2, it is characterized in that, described determine that the MR belonging to each grid includes: compared with the positional information of grid by the positional information of each MR, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

5. method as claimed in claim 4, it is characterised in that described basis belongs to the MR of each grid and calculates the network structure index of each grid, and the algorithm of employing is as follows:

MR declaration form network structure index=count * 100% less than the Traffic Channel TCH carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；

Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid.

6. a room subsystem site selection system, it is characterised in that include data collection and MR positioning subsystem, MR rasterizing and grid network structure Index for Calculation subsystem, buildings network Structure Calculation subsystem and room subsystem addressing subsystem, wherein,

Described data collection and MR positioning subsystem are used for extracting measurement report MR, determine the positional information of MR；

Described MR rasterizing and grid network structure Index for Calculation subsystem are for carrying out rasterizing process by assessment area according to appointment yardstick, the positional information of each grid generated after obtaining rasterizing, it is additionally operable to according to described positional information, determine the MR belonging to each grid, and obtain the network structure index of each grid according to described MR；

Described buildings network Structure Calculation subsystem is used for area and the network structure index of the grid covered of grid or the grid covered according to building, obtains buildings network structure index；

Described room subsystem addressing subsystem sets up the address of room subsystem according to described buildings network structure index for determining；

Buildings network Structure Calculation subsystem is further used for using algorithm to be calculated buildings network structure index, and described algorithm is as follows:

Wherein, value B_Constr is buildings network structure index, G_Constr_iI-th grid network structure index under covering for building, G_Traffic_iFor the telephone traffic of i-th grid, BG_Area_iFor the area that building is overlapping with i-th grid, G_Area_iArea for i-th grid；

Described room subsystem addressing subsystem is further used for utilizing valuation functions that the owned building in assessment area is weighted sequence, and described valuation functions is shown below:

F=K1*B_Constr+K2*B_Traffic+K3*B_Complaint

Wherein, B_Constr is buildings network structure index, and B_Traffic is the telephone traffic under building covers, lower grid or part grid traffic sum is covered equal to building, B_Complaint is the interior number of times occurring to complain of building, and K1, K2 and K3 are weight coefficients；Take the maximum building of F value as the building building room subsystem.

7. system as claimed in claim 6, it is characterised in that

Described data collection and positioning subsystem are further used for the received signal level RxLev of the BCCH channel of broadcast control according to six adjacent areas comprised in MR declaration form and the longitude and latitude of the base station of described six adjacent areas, are calculated the longitude and latitude that MR occurs.

8. system as claimed in claim 7, it is characterised in that described MR rasterizing and grid network structure Index for Calculation subsystem are further used for dividing assessment area according to 50*50 rice size the grid of horizontal and vertical arrangement, and obtain the longitude and latitude of each grid.

9. system as claimed in claim 8, it is characterized in that, described MR rasterizing and grid network structure Index for Calculation subsystem are further used for comparing the positional information of each MR with the positional information of grid, find the grid that the center of grid is nearest away from MR position, determine that this MR belongs to this grid.

10. system as claimed in claim 9, it is characterised in that described MR rasterizing and grid network structure Index for Calculation subsystem are further used for calculating the network structure index of each grid according to the MR belonging to each grid, and the algorithm of employing is as follows:

MR declaration form network structure index=count * 100% less than the Traffic Channel TCH carrier number/theory available frequency of communities all in the range of peak signal 12dB in measurement report；

Grid network structure index is the meansigma methods of all MR declaration form network structure indexes belonging to this grid.