CN103987077B - wireless network simulation method and device - Google Patents
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- CN103987077B CN103987077B CN201310050617.XA CN201310050617A CN103987077B CN 103987077 B CN103987077 B CN 103987077B CN 201310050617 A CN201310050617 A CN 201310050617A CN 103987077 B CN103987077 B CN 103987077B
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Abstract
The present invention provides a kind of Wireless Network Simulation method and device, belongs to moving communicating field.Wherein, the Wireless Network Simulation method includes：By solid space gridding, the emulated signal strength of each grid is calculated；The systematic parameter of wireless network is obtained, the systematic parameter includes but is not limited to：Cellular technology parameter, cell LNPR data, cell RLHBP data and cell RLLBP data；Main serving cell of the mobile terminal in Idle state and/or activated state is calculated according to the emulated signal strength of each grid and the systematic parameter.Technical scheme can calculate the cell that mobile terminal really takes under Idle state, activation (call) state.
Description
Technical field
The present invention relates to moving communicating field, a kind of Wireless Network Simulation method and device is particularly related to.
Background technology
In the prior art, when studying GSM network covering, main method is simulated by wireless emulation tool
Antenna Field strength coverage, its calculation basis is that wireless signal is decayed with the increase of distance in space, substantially loss value with
The distance of point-to-point transmission square is directly proportional, if ground landforms are different in addition, such as ground landforms are the water surface, greenery patches or building
Deng can also be impacted to the decay of wireless signal so that actual loss value has differences with theory.
Therefore current wireless emulation can all correct the speed of wireless signal loss by actual signal test, so that
To under some specific environment, the loss value of wireless signal under certain distance, according to this loss value, it is possible to know signal source
Under specified transmission power, the distance that wireless signal can be propagated.Concrete implementation method includes：Choose suitable radio transmission
Model, is modified by field test to wireless propagation model parameter, and calculating signal source using revised parameter sends
Intensity of the wireless signal under certain distance after loss.
Current mobile communications network uses separated by a distance close between honeycomb system, each base station, general in city
At 500 meters or so even closer to therefore in any point, being all likely to be received the signal of numerous base stations.Mobile terminal can not stop
Measurement these signals intensity, each most 32 frequencies, the reselecting parameters issued when not conversing using base station are determined
Final choice that cell is resident, and reports the signal of most 6 cells with 480 milliseconds of speed in call, by network side Lai
Determine whether mobile terminal will switch toward new cell.There is following defect in existing gsm wireless emulation of coverage capability technology：Traditional
After wireless coverage simulation result only has the physical range of website, i.e. base station with certain power emission, in space, attenuation is to connecing
Receipts machine can not decode before coverage, the signal intensity that can only finally know each base station of certain point is how many, but mobile
Terminal user, with selecting which cell to be resident under talking state on earth, is by a large amount of real network parameters, including weight idle
The controls such as choosing, handoff parameter, be not that who is most strong with regard to whom is resident merely, therefore simulate the result come and actual difference very
Greatly, cause only to know that the signal of which cell herein is most strong, but actual which cell that takes of user can not be known.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of Wireless Network Simulation method and device, movement can be calculated
The cell that terminal really takes under Idle state, activation (call) state.
In order to solve the above technical problems, embodiments of the invention offer technical scheme is as follows：
On the one hand there is provided a kind of Wireless Network Simulation method, including：
By solid space gridding, the emulated signal strength of each grid is calculated；
The systematic parameter of wireless network is obtained, the systematic parameter includes but is not limited to：Cellular technology parameter, cell LNPR
Data, cell RLHBP data and cell RLLBP data；
Mobile terminal is calculated in Idle state and/or activation according to the emulated signal strength of each grid and the systematic parameter
Main serving cell during state.
Further, it is described by solid space gridding in such scheme, calculate the emulated signal strength bag of each grid
Include：
Solid space is formatted according to 5 meters * 5 meters * 5 meters of cube net.
Further, in such scheme, the emulated signal strength for calculating each grid includes：
The electromagnetic propagation that antenna is transmitted into space is reduced to ray propagation, and electromagnetic wave is produced by different landforms environment
Direct projection propagate, reflection is propagated, beyond-the-horizon communication and diffraction propagation are emulated respectively；
Carry out vector superposed and use probabilistic method, obtain the maximum likelihood in various propagation, cluster is drawn containing penetrating
The propagation model of line tracked information；
Propagation model is trained using actual test data and Kernel-Based Methods, the emulation signal of each grid is obtained
Intensity.
Further, in such scheme, calculated and moved according to the emulated signal strength of each grid and the systematic parameter
Main serving cell of the terminal in Idle state includes：
C1 the and C2 values of each cell are calculated by below equation：
Emulated signal strength-the accmin-max (cchpwr-P, 0) that C1=mobile terminal present position is obtained；
When pt is not equal to 31, C2=C1+CRO-TO*H (pt-t)；
In pt=31, C2=C1-CRO;
Wherein, pt, TO and CRO are the systematic parameter obtained according to cell RLBHP data, and accmin is that network allows most
Small reception level, cchpwr is the mobile terminal maximum transmission power that network allows, and P is the actual emission maximum work(of mobile terminal
Rate, works as X>When 0, function H (X)=0 works as X<When=0, H (X)=1；
It is main serving cell of the mobile terminal in Idle state to determine the maximum cell of C2 values.
Further, in such scheme, calculated and moved according to the emulated signal strength of each grid and the systematic parameter
Main serving cell of the terminal in activated state includes：
Cell is ranked up according to signal intensity, basic label queue is obtained；
Cell in basic label queue is judged, selected into the small of layered cell structure HCS sequencing queues
Area；
It is more low more preferential, more low more preferential with band middle levels layer according to level band to the cell in HCS sequencing queues
Order arranged, the main serving cell using the cell made number one as mobile terminal in activated state.
Further, in such scheme, the cell selected into HCS sequencing queues includes：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；Such as
It is really no, turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If
It is no, turn to step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, such as
Fruit is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
The embodiment of the present invention additionally provides a kind of Wireless Network Simulation device, including：
Solid space gridding module, for by solid space gridding；
Simulation algorithm model, the emulated signal strength for calculating each grid；
Systematic parameter acquisition module, the systematic parameter for obtaining wireless network, the systematic parameter includes but is not limited to：
Cellular technology parameter, cell LNPR data, cell RLHBP data and cell RLLBP data；
Processing module, mobile terminal is calculated in sky for the emulated signal strength according to each grid and the systematic parameter
Main serving cell when not busy state and/or activated state.
Further, in such scheme, the simulation algorithm model is passed specifically for antenna to be transmitted into the electromagnetism in space
Broadcast be reduced to ray propagation, to electromagnetic wave by different landforms environment produce direct projection propagate, reflection propagate, beyond-the-horizon communication and around
Propagation is penetrated to be emulated respectively；Carry out vector superposed and use probabilistic method, obtain the maximum likelihood in various propagation, cluster
Draw the propagation model containing ray tracing information；Propagation model is instructed using actual test data and Kernel-Based Methods
Practice, obtain the emulated signal strength of each grid.
Further, in such scheme, the processing module includes：
Idle state calculating sub module, for calculating C1 the and C2 values of each cell by below equation, and determines C2 values most
Big cell is main serving cell of the mobile terminal in Idle state：
Emulated signal strength-accmin-max that C1=mobile terminal present position is obtained (cchpwr-P, 0)；
When pt is not equal to 31, C2=C1+CRO-TO*H (pt-t)；
In pt=31, C2=C1-CRO;
Wherein, pt, TO and CRO are the systematic parameter obtained according to cell RLBHP data, and accmin is that network allows most
Small reception level, cchpwr is the mobile terminal maximum transmission power that network allows, and P is the actual emission maximum work(of mobile terminal
Rate, works as X>When 0, function H (X)=0 works as X<When=0, H (X)=1.
Further, in such scheme, the processing module includes：
Activated state calculating sub module, for being ranked up according to signal intensity to cell, obtains basic label queue, to base
Cell in this sequencing queue is judged, selects the cell into layered cell structure HCS sequencing queues, and HCS is sorted
Cell in queue, according to level band more it is low it is more preferential, arranged with the more low more preferential orders of band middle levels layer, will
Main serving cell of the cell made number one as mobile terminal in activated state.
Further, in such scheme, the activated state calculating sub module is specifically for performing following steps：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；Such as
It is really no, turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If
It is no, turn to step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, such as
Fruit is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
Embodiments of the invention have the advantages that：
In such scheme, base station signal spatially signal at any point after spatial is lost is simulated first
Intensity, the systematic parameter for controlling mobile terminal behavior is used for reference to network, mobile terminal is calculated in Idle state, activated state afterwards
Under real occupancy cell, presentation network condition that can be actual.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of Wireless Network Simulation method of the embodiment of the present invention；
Fig. 2 is the structured flowchart of Wireless Network Simulation device of the embodiment of the present invention；
Fig. 3 is the schematic flow sheet that the embodiment of the present invention calculates the emulated signal strength for obtaining each grid of solid space；
Fig. 4 is the schematic flow sheet that the embodiment of the present invention carries out HCS sequences.
Embodiment
To make embodiments of the invention technical problem, technical scheme and the advantage to be solved clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
Embodiments of the invention provide a kind of Wireless Network Simulation method and device, can calculate mobile terminal in the free time
The cell really taken under state, activation (call) state.
Fig. 1 is the schematic flow sheet of Wireless Network Simulation method of the embodiment of the present invention, as shown in figure 1, the present embodiment includes：
Step 101：By solid space gridding, the emulated signal strength of each grid is calculated；
Step 102：The systematic parameter of wireless network is obtained, the systematic parameter includes but is not limited to：Cellular technology parameter,
Cell LNPR data, cell RLHBP data and cell RLLBP data；
Step 103：Mobile terminal is calculated in Idle state according to the emulated signal strength of each grid and the systematic parameter
And/or main serving cell during activated state.
Further, in another embodiment of the present invention, including on the basis of above-mentioned steps 101 ~ 103, step 101 is wrapped
Include：
Solid space is formatted according to 5 meters * 5 meters * 5 meters of cube net.
Further, in another embodiment of the present invention, including on the basis of above-mentioned steps 101 ~ 103, step 101 is wrapped
Include：
The electromagnetic propagation that antenna is transmitted into space is reduced to ray propagation, and electromagnetic wave is produced by different landforms environment
Direct projection propagate, reflection is propagated, beyond-the-horizon communication and diffraction propagation are emulated respectively；
Carry out vector superposed and use probabilistic method, obtain the maximum likelihood in various propagation, cluster is drawn containing penetrating
The propagation model of line tracked information；
Propagation model is trained using actual test data and Kernel-Based Methods, the emulation signal of each grid is obtained
Intensity.
Further, in another embodiment of the present invention, including on the basis of above-mentioned steps 101 ~ 103, step 103 is wrapped
Include：
C1 the and C2 values of each cell are calculated by below equation：
Emulated signal strength-accmin-max that C1=mobile terminal present position is obtained (cchpwr-P, 0)；
When pt is not equal to 31, C2=C1+CRO-TO*H (pt-t)；
In pt=31, C2=C1-CRO;
Wherein, pt, TO and CRO are the systematic parameter obtained according to cell RLBHP data, and accmin is that network allows most
Small reception level, cchpwr is the mobile terminal maximum transmission power that network allows, and P is the actual emission maximum work(of mobile terminal
Rate, works as X>When 0, function H (X)=0 works as X<When=0, H (X)=1；
It is main serving cell of the mobile terminal in Idle state to determine the maximum cell of C2 values.
Further, in another embodiment of the present invention, including on the basis of above-mentioned steps 101 ~ 103, step 103 is wrapped
Include：
Cell is ranked up according to signal intensity, basic label queue is obtained；
Cell in basic label queue is judged, selected into the small of layered cell structure HCS sequencing queues
Area；
It is more low more preferential, more low more preferential with band middle levels layer according to level band to the cell in HCS sequencing queues
Order arranged, the main serving cell using the cell made number one as mobile terminal in activated state.
Further, in such scheme, the cell selected into HCS sequencing queues includes：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；Such as
It is really no, turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If
It is no, turn to step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, such as
Fruit is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
The embodiment of the present invention simulates base station signal spatially letter at any point after spatial is lost first
Number intensity, the systematic parameter for controlling mobile terminal behavior is used for reference to network, mobile terminal is calculated in Idle state, activation afterwards
Real occupancy cell under state, presentation network condition that can be actual.
Fig. 2 is the structured flowchart of Wireless Network Simulation device of the embodiment of the present invention, as shown in Fig. 2 the present embodiment includes：
Solid space gridding module 10, for by solid space gridding；
Simulation algorithm model 20, the emulated signal strength for calculating each grid；
Systematic parameter acquisition module 30, the systematic parameter for obtaining wireless network, systematic parameter includes but is not limited to：It is small
Area's technical parameter, cell LNPR data, cell RLHBP data and cell RLLBP data；
Processing module 40, mobile terminal is calculated in the free time for the emulated signal strength according to each grid and systematic parameter
Main serving cell when state and/or activated state.
The Wireless Network Simulation device of the present invention is further introduced with reference to specific embodiment.The present invention
Embodiment simulates base station signal spatially signal intensity at any point after spatial is lost first, and by network
For controlling the parameter of mobile terminal behavior to take into account, mobile terminal is calculated under Idle state and activation (call) state
It is real to take cell, and intuitively showed to graphically by statistical analysis module etc..
Wherein, solid space gridding module 10 specifically for by urban space according to 5 meters * 5 meters * 5 meters of cube
Volume mesh, each grid marks geographical attribute, including building, road, water system, greenery patches, vacant lot etc., and takes cube central point
Space coordinate point is demarcated for result of calculation.
Systematic parameter acquisition module 30 gathers wireless network（Such as GSM network）Systematic parameter, it is including but not limited to small
Area's technical parameter (including base station height, azimuth, angle of declination, antenna model, gravity treatment underlying parameter etc.), cell RLNPR data
(handoff threshold i.e. between cell), cell RLHBP data (transmission power of cell etc.), cell RLLBP data（Network switching
Decision algorithm relevant parameter）.
Simulation algorithm model 20 is used for the emulated signal strength that each grid is obtained by simulation calculation, as shown in figure 3, imitative
True computing module 20 is specifically for performing following steps：
The first step, the electromagnetic propagation that antenna is transmitted into some space is reduced to ray propagation, to electromagnetic wave by different
The issuable direct projection of geomorphological environment is propagated, reflection is propagated, beyond-the-horizon communication and diffraction propagation are emulated respectively；
Second step, carries out vector superposed and uses probabilistic method, obtain the maximum likelihood in various propagation, cluster is drawn
Propagation model logical expression containing ray tracing information；
3rd step, is trained using magnanimity actual test data and Kernel-Based Methods to model.
Propagation model expression formula of each antenna in its space lattice influenceed is obtained by above-mentioned three step, and calculating is obtained
The emulated signal strength of each grid of solid space.
Idle state calculating sub module 50 is according to the emulated signal strength of each grid of solid space, at mobile terminal user
At this position, the reselecting parameters that mobile terminal can be provided according to system judge who is highest priority, utilize system
The systematic parameter that parameter collection module 30 is obtained, it is possible to the behavior of simulating mobile terminal, calculating it can actual choosing in Idle state
Take which in the numerous base station signals received as actual main serving cell, algorithm is as follows：
First calculate C1 the and C2 values of each cell
C1=actual level-accmin-max (cchpwr-P, 0);
Wherein, pt, TO, CRO, accmin and cchpwr are the systematic parameter according to cell RLBHP data acquisitions,
Accmin represents the minimum reception level allowed, and unit is dBm, and accmin is the ginseng that current base station informs mobile terminal user
Number, when the signal that mobile terminal user receives is weaker than this value, does not allow for access.CRO represents some base station mobile whole
Priority when end subscriber is idle is set.Pt is represented to be set to the priority of some base station.Cchpwr represents the shifting of network permission
Dynamic terminal maximum transmission power, generally 33dBm or 30dBm.P is the actual maximum transmission power of mobile terminal, and GSM900 is moved
Dynamic terminal is 33dBm, and DCS1800 cells are 30dBm.Therefore for
GSM900 cells:C1=actual level-accmin-max (cchpwr-33,0);
DCS1800 cells：C1=actual level-accmin-max (cchpwr-30,0);
Then C2 is calculated, when pt is not equal to 31：
C2=C1+CRO-TO*H(pt-t);
Here X is worked as>When 0, function H (X)=0 works as X<When=0, H (X)=1;Because t is timing, simplifies calculate here
For：C2=C1+CRO–TO;
In pt=31, C2=C1-CRO.
The maximum cell of C2 values is exactly the main serving cell under Idle state, and mobile terminal will be resided in rise above and exhaled.
Activated state calculating sub module 60 using simulate come each base station signal intensity, with reference to systematic parameter gather mould
The systematic parameter that block 30 is obtained, can simulate and calculate mobile terminal which cell can be actually chosen under activated state as master
Serving cell.It is small that activated state calculating sub module 60 selects main service of the mobile terminal under activated state especially by following steps
Area：
The first step：Signal too weak cell is removed, the signal of n cell, each cell can be obtained in each grid
Signal simulation intensity be Powern, select Power in n celln>=MSRXMINnCell, wherein, MSRXMINnTo be pre-
If threshold value, because if the signal intensity of cell is too weak, on the contrary it will not be possible to the main serving cell as mobile terminal；
Second step：Basic label, is divided into according to signal intensity sequence and dual-frequency network two steps of sequence.Assuming that mobile terminal is preliminary
The cell of occupancy is the main serving cell calculated according to Idle state, first using signal intensity as according to progress basic label.
Ranking value, and being ranked up from big to small according to ranking value are calculated according to below equation：
RANK s=Powers
RANK n=Powern-OFFSET s,n-HYST s,n
Wherein, RANK s are the ranking value of main serving cell under Idle state, equal to its signal intensity；The sequence of other cells
Value RANK n need to be modified, and OFFSET is signal intensity deviant, and HYST is signal intensity hysteresis, and OFFSET s, n are
A pair pairs of parameter, such as main serving cell S have m adjacent area, and the offset of it and each adjacent area is differed,
OFFSET s, n and HYST s, n can be gathered by systematic parameter acquisition module.
3rd step：HCS（Layered cell structure）Sequence, can obtain a basic label by the first step and second step and arrange
Table, is then ranked up again according to dual-frequency network function.
For all cells in basic label list, it has two attributes, band（Level）And layer（Layer）, i.e. cell
Which band is belonged to, which layer.Band and layer are smaller, and the priority of cell is higher, such as band1 is higher than
Band2, band2 are higher than band3, and layer is similar.Here a newly-built queue, HCS sequencing queues, for basic label queue
In each cell, all checked, can see enter HCS sequencing queues.
Into the condition of HCS sequencing queues：
（1）Intensity power is more than Hcsbandthr and is cell most strong in band where this cell；
（2）Intensity power is more than Hcsbandthr, although be not cell most strong in band where this cell, but intensity
More than the layerthr of layer where this cell.
Wherein, Hcsbandthr is BSC（Base station controller）Parameter, defines a grade thresholding；Layerthr is cell parameter,
Define a layer thresholding.Maxcellsinlayer represents that this layer allows to have several cells to participate in HCS sequences；
Maxdbdevinblayer represents that time strong cell with the signal intensity differences of the most strong cells of this layer in several db also allows
Participate in HCS sequences；All these parameters are all to be obtained by systematic parameter acquisition module from system.
Specifically, as shown in figure 4, activated state calculating sub module 60 is specifically for performing following steps：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；Such as
It is really no, turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If
It is no, turn to step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not,
Turn to step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, such as
Fruit is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
It is more low more preferential according to band into the cell of HCS sequencing queues, it is more low more preferential suitable with layer in band
Sequence arrange, before HCS sequencing queues come most afterwards, remaining other cells according to basic label order it is constant be placed on back,
Obtain in final Priority Queues, final Priority Queues sequence first is exactly real main serving cell, i.e., in mobile terminal
Network can order it to switch to the cell during in activated state.
Further, Wireless Network Simulation device also includes statistical analysis module and solid space data visualization module.
Statistical analysis module is used for the main serving cell under Idle state and activated state according to the mobile terminal simulated, and statistical analysis is every
GSM coverage rates, interference, telephone traffic in individual antenna or definition region etc., and result of calculation is exported with form of icons.It is three-dimensional
Spatial database control module, for emulation data geographic to be showed, the cell that can obtain idle and activated state is real
Border coverage.
Technical scheme can calculate real occupancy cell of the mobile terminal under Idle state, activated state, energy
Actual presentation network condition.Changed by analyzing the coverage that cell is different under activated state, Idle state, to parameter setting
Accuracy, traffic absorb whether accomplish comprehensively analysis in terms of the capacity quality such as equilibrium.With reference to actual prospecting, or emulation knot
Fruit and existing network base station physical parameter comparison, to there is being modified for mistake, keep the accuracy of basic data.
This many functional part described in this description is all referred to as module, specifically to emphasize its realization side
The independence of formula.
In the embodiment of the present invention, module can be realized with software, so as to by various types of computing devices.Citing comes
Say, the executable code module of a mark can include the one or more physics or logical block of computer instruction, illustrate
For, it can be built as object, process or function.Nevertheless, the executable code of institute's mark module is without physically
It is located together, but can includes being stored in different different instructions physically, is combined together when in these command logics
When, its regulation purpose for constituting module and realizing the module.
In fact, executable code module can be the either many bar instructions of individual instructions, and it can even be distributed
On multiple different code segments, it is distributed among distinct program, and is distributed across multiple memory devices.Similarly, grasp
Making data can be identified in module, and can be realized according to any appropriate form and be organized in any appropriate class
In the data structure of type.The peration data can be collected as individual data collection, or can be distributed on diverse location
（It is included in different storage device）, and only can be present at least in part as electronic signal in system or network.
When module can be realized using software, it is contemplated that the level of existing hardware technique, it is possible to implemented in software
Module, in the case where not considering cost, those skilled in the art can build corresponding hardware circuit realize correspondence
Function, the hardware circuit includes conventional ultra-large integrated（VLSI）Circuit or gate array and such as logic core
The existing semiconductor of piece, transistor etc either other discrete elements.Module can also use programmable hardware device, such as
Field programmable gate array, programmable logic array, programmable logic device etc. are realized.
In each method embodiment of the present invention, the priority that the sequence number of each step can not be used to limit each step is suitable
Sequence, for those of ordinary skill in the art, on the premise of not paying creative work, the priority to each step changes
Within protection scope of the present invention.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of Wireless Network Simulation method, it is characterised in that including：
By solid space gridding, the emulated signal strength of each grid is calculated；
The systematic parameter of wireless network is obtained, the systematic parameter includes but is not limited to：Cellular technology parameter, cell LNPR numbers
According to, cell RLHBP data and cell RLLBP data；
Mobile terminal is calculated in Idle state and/or activated state according to the emulated signal strength of each grid and the systematic parameter
Main serving cell；
The emulated signal strength for calculating each grid includes：
The electromagnetic propagation that antenna is transmitted into space is reduced to ray propagation, to electromagnetic wave by the straight of different landforms environment generation
Propagation, reflection propagation, beyond-the-horizon communication and diffraction propagation is penetrated to be emulated respectively；
Carry out vector superposed and use probabilistic method, obtain the maximum likelihood in various propagation, cluster is drawn to be chased after containing ray
The propagation model of track information；
Propagation model is trained using actual test data and Kernel-Based Methods, the emulation signal for obtaining each grid is strong
Degree.
2. Wireless Network Simulation method according to claim 1, it is characterised in that described by solid space gridding, meter
Calculating the emulated signal strength of each grid includes：
Solid space is formatted according to 5 meters * 5 meters * 5 meters of cube net.
3. Wireless Network Simulation method according to claim 1, it is characterised in that strong according to the emulation signal of each grid
Degree and the systematic parameter, which calculate main serving cell of the mobile terminal in Idle state, to be included：
C1 the and C2 values of each cell are calculated by below equation：
Emulated signal strength-accmin-max that C1=mobile terminals present position is obtained (cchpwr-P, 0)；
When pt is not equal to 31, C2=C1+CRO-TO*H (pt-t)；
In pt=31, C2=C1-CRO；
Wherein, pt, TO and CRO are the systematic parameter obtained according to cell RLBHP data, and accmin is that the minimum that network allows connects
Level is received, cchpwr is the mobile terminal maximum transmission power that network allows, and P is the actual maximum transmission power of mobile terminal,
Work as X>When 0, function H (X)=0 works as X<When=0, H (X)=1；
It is main serving cell of the mobile terminal in Idle state to determine the maximum cell of C2 values.
4. Wireless Network Simulation method according to claim 1, it is characterised in that strong according to the emulation signal of each grid
Degree and the systematic parameter, which calculate main serving cell of the mobile terminal in activated state, to be included：
Cell is ranked up according to signal intensity, basic label queue is obtained；
Cell in basic label queue is judged, the cell into layered cell structure HCS sequencing queues is selected；
It is more low more preferential, more low more preferential suitable with band middle levels layer according to level band to the cell in HCS sequencing queues
Sequence is arranged, the main serving cell using the cell made number one as mobile terminal in activated state.
5. Wireless Network Simulation method according to claim 4, it is characterised in that described to select into HCS sequences team
The cell of row includes：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；If not,
Turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not, turning to
Step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If not, turning
To step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not, turning to
Step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, if
It is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
6. a kind of Wireless Network Simulation device, it is characterised in that including：
Solid space gridding module, for by solid space gridding；
Simulation algorithm model, the emulated signal strength for calculating each grid；
Systematic parameter acquisition module, the systematic parameter for obtaining wireless network, the systematic parameter includes but is not limited to：Cell
Technical parameter, cell LNPR data, cell RLHBP data and cell RLLBP data；
Processing module, mobile terminal is calculated in Idle state for the emulated signal strength according to each grid and the systematic parameter
And/or main serving cell during activated state；
The simulation algorithm model is reduced to ray propagation specifically for antenna to be transmitted into the electromagnetic propagation in space, to electromagnetic wave
The direct projection produced by different landforms environment is propagated, reflection is propagated, beyond-the-horizon communication and diffraction propagation are emulated respectively；Sweared
Amount is superimposed and uses probabilistic method, obtains the maximum likelihood in various propagation, and cluster draws the biography containing ray tracing information
Broadcast model；Propagation model is trained using actual test data and Kernel-Based Methods, the emulation signal of each grid is obtained
Intensity.
7. Wireless Network Simulation device according to claim 6, it is characterised in that the processing module includes：
Idle state calculating sub module, for calculating C1 the and C2 values of each cell by below equation, and determines C2 values maximum
Cell is main serving cell of the mobile terminal in Idle state：
Emulated signal strength-accmin-max that C1=mobile terminals present position is obtained (cchpwr-P, 0)；
When pt is not equal to 31, C2=C1+CRO-TO*H (pt-t)；
In pt=31, C2=C1-CRO；
Wherein, pt, TO and CRO are the systematic parameter obtained according to cell RLBHP data, and accmin is that the minimum that network allows connects
Level is received, cchpwr is the mobile terminal maximum transmission power that network allows, and P is the actual maximum transmission power of mobile terminal,
Work as X>When 0, function H (X)=0 works as X<When=0, H (X)=1.
8. Wireless Network Simulation device according to claim 6, it is characterised in that the processing module includes：
Activated state calculating sub module, for being ranked up according to signal intensity to cell, obtains basic label queue, to basic row
Cell in sequence queue is judged, the cell into layered cell structure HCS sequencing queues is selected, to HCS sequencing queues
In cell, according to level band more it is low it is more preferential, arranged with the more low more preferential orders of band middle levels layer, will come
Main serving cell of the primary cell as mobile terminal in activated state.
9. Wireless Network Simulation device according to claim 8, it is characterised in that the activated state calculating sub module is specific
For performing following steps：
Step a：Judge whether the signal intensity of cell is more than default Hcsbandthr, if it is, turning to step b；If not,
Turn to step g；
Step b:Whether be in this grade cell signal most strong cell, if it is, turning to step h if judging cell；If not, turning to
Step c；
Step c；Judge whether the signal intensity of cell is more than default layerthr, if it is, turning to step d；If not, turning
To step g；
Step d：Whether be in this layer cell signal most strong cell, if it is, turning to step h if judging cell；If not, turning to
Step e；
Step e：Judge whether the number of this layer of cell in HCS sequencing queues is less than default Maxcellsinlayer, if
It is to turn to step f；If not, turning to step g；
Step f：Judge the difference of signal intensity of the most strong cell of cell and this layer signal whether less than default
Maxdbdevinblayer, if it is, turning to step h；If not, turning to step g；
Step g：Cell is retained in basic label queue；
Step h：Cell is put into HCS sequencing queues.
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| US6539221B1 (en) * | 1997-10-16 | 2003-03-25 | Nortel Networks Limited | Automated wireless network design |
| CN102083079A (en) * | 2009-11-27 | 2011-06-01 | 中国移动通信集团设计院有限公司 | Wireless network simulation method and device |
| CN102083076A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团广东有限公司 | Planning method and device of wireless network |
| CN102360076A (en) * | 2011-07-25 | 2012-02-22 | 北京首科信通科技有限责任公司 | Multidimensional positioning method and apparatus thereof |
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| US6539221B1 (en) * | 1997-10-16 | 2003-03-25 | Nortel Networks Limited | Automated wireless network design |
| CN102083079A (en) * | 2009-11-27 | 2011-06-01 | 中国移动通信集团设计院有限公司 | Wireless network simulation method and device |
| CN102083076A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团广东有限公司 | Planning method and device of wireless network |
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