CN101801020A - Method and device for simulating air interface scene - Google Patents
Method and device for simulating air interface scene Download PDFInfo
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- CN101801020A CN101801020A CN 201010121995 CN201010121995A CN101801020A CN 101801020 A CN101801020 A CN 101801020A CN 201010121995 CN201010121995 CN 201010121995 CN 201010121995 A CN201010121995 A CN 201010121995A CN 101801020 A CN101801020 A CN 101801020A
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Abstract
The embodiment of the invention discloses a method and a device for simulating an air interface scene. The scheme provided by the embodiment of the invention is as follows: refining air interface information of an actual air interface scene from operated network air interfaces and forming simulation data according to the acquired air interface information; and using the formed simulation data to simulate the air interface scene to be simulated. The simulation data in the embodiment of the invention is from the air interface information which is acquired directly from the operated network air interfaces, so the simulation data basis of the embodiment of the invention is real and valid, thus ensuring real simulation of a scene to be simulated by the embodiment of the invention.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of emulation mode and device of air interface scene.
Background technology
Existing air interface simulating scheme mainly contains two kinds, the air interface simulating scheme of pure software and based on the air interface simulating scheme of communication equipment.The air interface simulating scheme of pure software only carries out on the high-performance simulation computer, does not relate to true wireless telecommunications system (as controller, base station, terminal etc.).Air interface simulating scheme based on communication equipment adopts true wireless telecommunications system to realize.Though existing simulation model is based on some actual sample, but what ordinary circumstance provided is the statistical value of the single-link (single user) of static state, ordinary circumstance all be with " * * model: signal strength signal intensity * * dbm; interference strength * * dbm " form provide, also simply the statistical value of single-link is successively decreased, increases progressively and form even provide dynamic value.And in the real network, signal, interference intensity do not have or are difficult to fixing rule at short notice, even the mobile phone transfixion, signal and interference variations are still very big.
Be not difficult to find out by above analysis, existing emulation technology is mainly used in algorithm trend, the theory of algorithm checking, and can not really carry out emulation, thereby can't accurately provide the recruitment evaluation of algorithm in true control interface scene to the true air interface scene of complexity.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of emulation mode and device of air interface scene, realizes the emulation to true air interface scene.
For achieving the above object, the embodiment of the invention provides following technical scheme:
A kind of emulation mode of air interface scene comprises:
Obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
Form emulated data according to the described information of eating dishes without rice or wine;
Utilize described emulated data that the described emulation air interface scene for the treatment of is carried out emulation.
A kind of simulator of air interface scene comprises:
Acquiring unit is used to obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
Generation unit is used for forming emulated data according to the described information of eating dishes without rice or wine;
Simulation unit is used to utilize described emulated data that the described emulation air interface scene for the treatment of is carried out emulation.
As seen, the scheme that the embodiment of the invention provides directly extracts the information of eating dishes without rice or wine of actual air interface scene from existing network air interface, forms emulated data according to the information of being obtained of eating dishes without rice or wine; Utilize formed emulated data to treat the emulation air interface scene and carry out emulation.Because emulated data comes from the information of eating dishes without rice or wine, and the information of eating dishes without rice or wine is directly obtained from existing network air interface, so it is authentic and valid that the embodiment of the invention is carried out the data basis of emulation, thereby guaranteed that the embodiment of the invention can treat simulating scenes and carry out real emulation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the method that one embodiment of the invention provided;
Fig. 2 is the schematic diagram of the simulating scenes of the method that one embodiment of the invention provided;
Fig. 3 is the schematic diagram of the simulating scenes of the method that one embodiment of the invention provided;
Fig. 4 is signal attenuation schematic diagram that one embodiment of the invention provided;
Fig. 5 is the flow chart of another step in the method that one embodiment of the invention provided;
Fig. 6 is the structural representation of the device that one embodiment of the invention provided;
Fig. 7 is the structural representation of a unit in the device that one embodiment of the invention provided;
Fig. 8 is the structural representation of another unit in the device that one embodiment of the invention provided;
Fig. 9 is the structural representation of a unit in the device that another embodiment of the present invention provided.
Embodiment
In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
Referring to Fig. 1, the emulation mode of a kind of air interface scene that one embodiment of the invention provided comprises:
S101, obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
The information of eating dishes without rice or wine in the embodiment of the invention can be obtained from the communication system interface for the treatment of the emulation air interface scene by the interface tracking instrument.In the practical application, the interface tracking instrument can be articulated in continuous several (for example 1～3) base station that covers of the live network (for example move in Chongqing) for the treatment of emulation.In the practical application, according to the size of simulated environment capacity, the scope of can also the docking port tracker following the tracks of is expanded.
Such as, the interface tracking instrument can be articulated in the interface between base station and the base station controller.Concrete, if in global system for mobile communications GSM network, the interface tracking instrument can be articulated in the ABIS interface, if in the UMTS network, the interface tracking instrument can be articulated in the IUB interface.After the interface tracking instrument is articulated, can follow the tracks of corresponding time length, for example, can Continuous Tracking 24 hours.The information that the interface tracking instrument is obtained is exactly to treat the information of eating dishes without rice or wine of emulation air interface scene.Those skilled in the art can know that concrete tracking time can be set according to actual demand, and the present invention does not do qualification to this.
Be understandable that, the information of eating dishes without rice or wine can be in the following information partly or entirely: such as, the uplink signal strength, interference strength, the distance that comprise a plurality of terminal uses that base station measurement arrives, can comprise that also the terminal use measures the downstream signal intensity and the interference strength of base station, can also comprise the information such as power control commands of access power grade, up-downgoing passage.This shows, can comprise business (for example conversation, note, data service or the like) behavior of each user in the corresponding base station in the information of eating dishes without rice or wine, information such as uplink and downlink signals and neighbor cell signal intensity when each business is carried out.
S102, form emulated data according to the information of eating dishes without rice or wine obtained;
Generally speaking, the interface tracking instrument can be preserved the information of being obtained of eating dishes without rice or wine according to certain form.By the introducing us and can know that the content of the information of eating dishes without rice or wine may be very numerous and jumbled of front, so in the embodiment of the invention, after obtaining the information of eating dishes without rice or wine, can go out emulated data according to the finish message of eating dishes without rice or wine.
The business information of sub-district service switchover takes place in the emulated data record, and business information all is kept in information header and the imformosome each time.Comprise terminal type, type of service, band information in the information header; In the imformosome according to the time order and function order, can write down respectively signal strength signal intensity, the up-downgoing passage of up-downgoing passage interference, the power control commands of distance (TA), neighboring BS information, neighboring area signal intensity and the up-downgoing passage of this professional terminal and base station takes place.
In the other embodiments of the invention, for the convenience on handling, after obtaining to treat the information of eating dishes without rice or wine of emulation air interface scene, the information relevant with air interface scene (being emulated data) from the business information (information of promptly eating dishes without rice or wine) of " magnanimity " " peeling off " can be come out, and store according to sequential.
S103, utilize emulated data to treat the emulation air interface scene to carry out emulation.
The objective of the invention is to utilize the information of obtaining from live network of eating dishes without rice or wine to form emulated data, the scenario reduction of will eating dishes without rice or wine really in simulated environment is simulated the scene of eating dishes without rice or wine really by emulation.Therefore, after obtaining emulated data, build the simulated environment consistent, thereby utilize emulated data in simulated environment, the scene of truly eating dishes without rice or wine to be reduced with live network.
Build the simulated environment consistent, need obtain the relevant data configuration of being followed the tracks of by the interface tracking instrument in base station, traffic measurement information of corresponding period or the like with the live network for the treatment of emulation really.According to the base station data configuration of being obtained, build the simulated environment consistent with live network, can open to guarantee the base station in the simulated environment, guarantee that every business and network can normally move.
Fig. 2 and Fig. 3 are the examples of two kinds of simulating scenes.Fig. 2 is an one-level damping matrix networking simulated environment schematic diagram, and Fig. 3 is a secondary damping matrix networking simulated environment schematic diagram.The structure of two simulated environment is basic identical, includes network equipment, terminal side equipment, damping matrix and control end.Wherein, network equipment comprises base station 1, base station 2 and interference source; Terminal side equipment comprises a plurality of mobile phones and cell phone controller.The main difference of the simulating scenes of Fig. 2 and Fig. 3 just is that the damping matrix among Fig. 2 is the one-level damping matrix, is made of full exchange degeneracy matrix; And the damping matrix among Fig. 3 is the secondary damping matrix, is combined by full exchange degeneracy matrix and direct-connected damping matrix.In these two simulating scenes, interference source, damping matrix and cell phone controller all link to each other with control end; Network equipment links to each other with terminal side equipment by damping matrix.
For the method that the embodiment of the invention provided is described clearly, below in conjunction with the secondary damping matrix networking among Fig. 3 the embodiment of the invention is illustrated, those skilled in the art can know, the method that the embodiment of the invention provided is not to be subjected to concrete latticed form restriction, can be applied in according to actual needs in other networks, the present invention does not do qualification to this.
Secondary damping matrix networking shown in Figure 3 is made up of network equipment, terminal side equipment, damping matrix and control end.Wherein, network equipment comprises base station 1, base station 2 and interference source; Damping matrix comprises full exchange degeneracy matrix and direct-connected damping matrix; Terminal side equipment comprises a plurality of mobile phones and cell phone controller.Interference source, full exchange degeneracy matrix, direct-connected damping matrix and cell phone controller all link to each other with control end; Network equipment links to each other with terminal side equipment by damping matrix.
After obtaining emulated data, can be object just with the simulating scenes of having set up, utilize emulated data to treat the emulation air interface scene and carry out emulation.
In the embodiment of the invention, emulated data mainly comprises the business simulating data, in addition, can also comprise decay emulated data and/or interference simulation data.Accordingly, utilize emulated data to treat the emulation air interface scene and carry out emulation and can comprise: utilize the business simulating data to carry out emulation, and utilize the decay emulated data to carry out emulation, utilize the interference simulation data to carry out emulation, below will be described respectively.
One, utilize the business simulating data to carry out emulation
Utilizing emulated data to treat the emulation air interface scene carries out emulation and comprises and utilize the business simulating data to carry out emulation, specifically can comprise: be the corresponding terminal of the coupling of the business in the emulated data, and form the professional spanned file of the corresponding business of record terminal and this terminal institute; Control each terminal originating service according to each professional initiation time of writing down in the professional spanned file.
To carry out emulation to air interface scene truly, real professional extremely important in " recovery " this air interface scene.According to the time of initiating of the business in the emulated data business in the air interface scene is matched in the terminal of simulating scenes in the embodiment of the invention.In the practical application, can also the business in the air interface scene be matched in the terminal of simulating scenes further combined with the type of service that is write down in the emulated data, professional time-delay, professional switching, professional information such as Timing Advance.
The process of terminal that business in the air interface scene is matched simulating scenes is relevant with the terminal number that simulating scenes has, if the terminal number that is had in the simulating scenes is less, but the traffic carrying capacity in the air interface scene is bigger, then can allow each terminal wheel flow field simulation professional each time, simulate users a large amount of in the real network by frequently repeating to simulate each business.
In order to make control end can initiate business in real time, the terminal quantity of controlling according to control end in advance in the embodiment of the invention generates professional spanned file, all stores a professional spanned file in each terminal, is used for controlling the professional implementation status of this terminal.In this business spanned file, preserve type of service, the duration that this terminal is initiated, make terminal can carry out the execution and the repetition of each business according to the record of this document according to sequential.
With simulating scenes shown in Figure 3 is example, and the terminal shown in Fig. 3 in the simulating scenes is 6 mobile phones, all preserves a professional spanned file in each mobile phone, all writes down type of service, duration that this mobile phone need be initiated in each professional spanned file.The method that the embodiment of the invention provided can re-execute the communication that corresponding service realizes utilizing a spot of terminal simulation great amount of terminals by making mobile phone.For example, certain is waited to simulate in the air interface scene and carries out 100 business at a default simulated time Duan Zhongxu, have only 6 mobile phones in the current simulating scenes, then can reach the effect that numerous terminal interactions are carried out 100 business by the business that each mobile phone is repeated in the professional spanned file.
Can also preserve in this business spanned file each terminal and base station apart from TA, this is in order can to simulate apart from the distance of base station different terminals in the real network, thereby the method that the embodiment of the invention is provided can more truly be imitated air interface scene.
The scheme that the embodiment of the invention provided can be by the corresponding terminal of business coupling for eating dishes without rice or wine in the information, and forms the professional spanned file of the corresponding business of record terminal and this terminal institute; Controlling each terminal originating service according to each professional initiation time of writing down in the professional spanned file realizes imitation professional in the scene of truly eating dishes without rice or wine.Because emulated data comes from the information of eating dishes without rice or wine, and the information of eating dishes without rice or wine is directly obtained from existing network air interface, so it is authentic and valid that the embodiment of the invention is carried out the data basis of emulation, thereby guaranteed that the embodiment of the invention can treat simulating scenes and carry out real emulation.
Two, utilize the decay emulated data to carry out emulation
In another embodiment of the present invention, utilizing emulated data to treat the emulation air interface scene carries out emulation and is specially, business in treating the emulation air interface scene is carried out in the emulation, also treats the decay of signal in the emulation air interface scene and carries out emulation, comprising:
Count the values for tuning of down going channel in according to the signal strength meter of the up-downgoing passage in the emulated data, the values for tuning of the up-downgoing passage that each is instantaneous is arranged chronologically, business each time in the emulated data is matched one group of up-downgoing passage, utilize up-downgoing passage values for tuning to generate a tuning file of decay for each group up-downgoing passage; Each professional initiation time of writing down in according to professional spanned file is controlled in each terminal originating service, utilizes the tuning file of decay to produce decay at each group up-downgoing passage.
Realize truly air interface scene being carried out emulation, can restore the air interface decay intensity.
Signal strength signal intensity in the emulated data is not the signal strength signal intensity in the air interface scene of " truly " in the time of most of.This is because network and terminal can be carried out power control (abbreviation power control) to the signal on the up-downgoing passage most of the time, reducing the energy consumption of base station and portable terminal, this just makes that the signal strength signal intensity that writes down in the emulated data generally speaking all can be lower than the signal strength signal intensity in the actual air interface scene.Only when system closing power control function, the signal strength signal intensity that writes down in the emulated data just can be equivalent to the signal strength signal intensity in the actual air interface.
Can know thus generally speaking, after obtaining emulated data, judge whether the information that writes down in the emulated data has passed through power control, if passed through power control, then needs this signal is carried out power back-off, thereby obtain the signal of no power control up-downgoing passage.
The process of power back-off comprises: obtain the power control commands that is handed down to terminal from emulated data, and power control commands is converted into tone pitch under the terminal transmit power, utilize the signal strength signal intensity of the data feedback channel that this value compensation obtains from emulated data to obtain not having the signal strength signal intensity of power control data feedback channel; Obtain from emulated data that network side is handed down to the power control commands of base station and power control commands transferred to be tone pitch under the base station transmitting power, utilize the signal strength signal intensity of the down going channel that this value compensation obtains from emulated data, obtain not having the signal strength signal intensity of power control down going channel.
After the signal strength signal intensity that has obtained no power control up-downgoing passage, by will be each time the signal strength signal intensity of the up-downgoing passage of the no power control of business information correspondence and the power output of emission source subtract each other, can obtain the values for tuning of up-downgoing passage.
Referring to wireless communication signals decay schematic diagram shown in Figure 4, be example with the adjustable damping matrix below, the process of the values for tuning that obtains the up-downgoing passage is once described.
At first, following hypothesis is arranged: the descending level of a terminal to report is that the last line level of Pd, base station measurement is Pu, and the downward modulation power control value of base station is that the downward modulation power control value of Δ Pd, terminal is Δ Pu before this, and the uplink air interface signal strength signal intensity that the descending air interface signals intensity of not having power control so this moment should be Pd+ Δ Pd, no power control is Pu+ Δ Pu.Because the adjustable damping matrix requires input signal to be less than 25dbm, generally need add a natural attenuation device (Pc) at the base station radio-frequency output.
As shown in Figure 4, suppose that base station transmitting power is Pb, terminal transmit power is Pm, and the radio frequency feed line pad value is Pk, the descending values for tuning that is converted to the adjustable damping matrix so is: Vd=Pb-(Pd+ Δ Pb+Pc+Pk), up values for tuning is: Vu=Pm-(Pu+ Δ Pm+Pc+Pk).
In one embodiment of the invention, according to said method, obtain after the values for tuning of each instantaneous last lower channel, the values for tuning of the up-downgoing passage that each is instantaneous is arranged chronologically, business each time in the emulated data is matched one group of up-downgoing passage, utilize up-downgoing passage values for tuning to generate a tuning file of decay for each group up-downgoing passage.
With the passage among Fig. 31 (CH1) is example, as can be seen from the figure, passage 1 mates with the mobile phone 1 of end side, suppose by the traffic sequence of emulated data being put in order this passage that writes down in the emulated data that obtains to be: " date Hour Minute Second millisecond cell-phone number traffic sequence VD1 VU1 VD2VU2 VD3 VU3 ... " wherein VD1 represents CH1 descending tuning at first time slot, VU1 represents CH1 up tuning at first time slot, by that analogy.During actual emulation, as long as initiate business, simultaneously according to up-downgoing channel attenuation value sequence (VD1 VU1 VD2VU2 by professional spanned file control terminal ...) control damping matrix get final product.
The disclosed power compensating method of the embodiment of the invention is applicable to all wireless telecommunication systems, in the practical application, the wireless telecommunication system of different systems is slightly different on the processing details, what for example gsm system was realized is power control at a slow speed, be that the power control frequency is the fastest per second 2 times, as long as follow the tracks of the ABIS emulated data, from information, parse necessary informations such as the needed type of service of emulation, uplink and downlink signals, up-downgoing error code and get final product; What CDMA/WCDMA adopted is that (CDMA is per second 800 times to rapid power control, WCDMA per second 1500 times) and the mode of power control combination at a slow speed (about 50 times/second), therefore aloft the interface contextual data extract, calculate as long as extract corresponding data according to the power control situation of concrete wireless communication system.
The embodiment of the invention can also generate a tuning file of decay according to emulated data when business is carried out emulation; Each professional initiation time of writing down in according to professional spanned file utilizes the tuning file of decay to produce decay at each group up-downgoing passage when controlling each terminal originating service, restore the preceding real wireless air propagation state of power control, finally finish the multi-user radio scene simulation of one group of continuous coverage base station by a plurality of terminals of values for tuning Synchronization Control of business information and each passage.
Three, utilize the interference simulation data to carry out emulation
In another embodiment of the present invention, utilizing emulated data to treat the emulation air interface scene carries out emulation and is specially, business in treating the emulation air interface scene is carried out in the emulation, also treats the interference of signal in the emulation air interface scene and carries out emulation, comprising:
Interference signal intensity according to the signal strength signal intensity that from emulated data, reads and corresponding each group up-downgoing passage of error rate calculation, the interference signal intensity of the up-downgoing passage that each is instantaneous is arranged chronologically, utilizes the interference signal intensity of up-downgoing passage to disturb file for each group up-downgoing passage generates one; The professional initiation of each that writes down in according to professional spanned file utilizes the interference file that signal of each group up-downgoing passage is disturbed when time synchronized is controlled each terminal originating service.
Particularly, can comprise according to the interference signal intensity of the signal strength signal intensity that from emulated data, reads and corresponding each group up-downgoing passage of error rate calculation:
Go out relation between up-downgoing channel signal intensity, interference signal intensity and the error rate by a plurality of sample statistics in advance; According to the relation between up-downgoing channel signal intensity, interference signal intensity and the error rate, extrapolate the interference signal intensity of up-downgoing passage by the up-downgoing channel signal intensity in the emulated data and the error rate.
The embodiment of the invention can also generate one according to emulated data and disturb file when business is carried out emulation; Each professional initiation time of writing down in according to professional spanned file utilizes the interference file that signal of each group up-downgoing passage is disturbed when controlling each terminal originating service, thereby restore the interference in the real unlimited airborne spread process, finally finish and realize the multi-user radio scene simulation by a plurality of terminals of interference signal Synchronization Control of business information and each passage.
In the method that the embodiment of the invention provided, utilizing emulated data to treat the emulation air interface scene carries out in the specific implementation process of emulation, utilizing the business simulating data to carry out emulation is the basis, on this basis in conjunction with decay emulated data or interference simulation data, perhaps treat the emulation air interface scene in conjunction with decay emulated data and interference simulation data simultaneously and carry out emulation, can treat the emulation air interface scene more truly and reproduce.
In another embodiment of the present invention,, treat the emulation cycle according to the cycle setting of traffic measurement in order fully live network to be carried out emulation.For example the cycle of traffic measurement is 60 minutes, and the emulation period for the treatment of that the embodiment of the invention is set also is 60 minutes.Treating to utilize the interface tracking instrument that the interface between base station and the base station controller is followed the tracks of in the emulation period, obtain the information of eating dishes without rice or wine, from the information of eating dishes without rice or wine, obtain and form professional spanned file, the tuning file of decay according to the method described above and disturb file.
In simulating scenes shown in Figure 3, control end can read in the professional spanned file of corresponding traffic measurement complete cycle, the tuning file of decaying in the lump, disturb file, initiates business, the generation decay of control adjustable damping matrix and control signal source according to the equipment (mobile phone) of the content synchronization control terminal side that writes down in three files and produces interference.Detailed process comprises referring to Fig. 5:
S501, read in terminal professional spanned file, disturb file, the tuning file of decaying.
Be understandable that terminal herein can be all terminals or the part terminal in the simulating scenes.
S502, according to the professional sequencing control terminal originating service in the professional spanned file, and play according to professional temporal order ground this business correspondence passage the tuning file of decay and disturb file.
Particularly, if certain business is a calling service, then when initiating business, promptly play the tuning file of decay and the interference file of the passage of this business correspondence.If certain business is a called service, the tuning file of decay of then playing the passage of this business correspondence after called response again disturbs file.
Particularly, in the embodiment of the invention, initiate professional according to the terminal side equipment in the control of the business initiation time in the professional spanned file simulating scenes, the tuning file of the decay of the passage of play service correspondence disturbs file to be specially: according to the sequential in the tuning file of decay and pad value damping matrix in the simulating scenes is set, and according to the interference signal of disturbing sequential in the file and interference signal intensity that the interference source in the simulating scenes is set.
Step S501 and S502 have described the method that the embodiment of the invention provided and have carried out process of simulation, can obtain the traffic measurement data of emulation in this simulation process.In the practical application, can also provide the performance comparison result of simulating scenes and real network according to the traffic measurement data that obtain.
Such as, after obtaining the traffic measurement data in the simulation process, the traffic measurement data are added loss and the real network traffic measurement result comparison of obtaining of emulation air interface scene when the data preliminary treatment, whether the Key Performance Indicator (KPI, Key Performance Indicators) of judging emulation is identical with the KPI of real network.
Need to prove, for the target BS that switches not in simulating scenes, with network scenarios shown in Figure 3 is example, the professional handover-target base station that switches is not base station 1 or base station 2, then directly should business reject, but need note the be engaged in contribution of statistics of the service conversation of rejecting,, confirm that simulated effect time will it conduct causes the loss in the intrinsic traffic measurement so that after emulation finishes.
The scheme that the embodiment of the invention provides directly extracts the information of eating dishes without rice or wine of actual air interface scene from existing network air interface, form emulated data according to the information of being obtained of eating dishes without rice or wine; Utilize formed emulated data to treat the emulation air interface scene and carry out emulation.Be specially by being the corresponding terminal of the coupling of the business in the emulated data, and form the professional spanned file of the corresponding business of record terminal and this terminal institute; Generate a tuning file of decay according to emulated data, generate one according to emulated data and disturb file; Controlling each terminal originating service according to each professional initiation time of writing down in the professional spanned file realizes imitation professional in the scene of truly eating dishes without rice or wine, each professional initiation time of writing down in according to professional spanned file utilizes the tuning file of decay to produce decay at each group up-downgoing passage when controlling each terminal originating service, utilize simultaneously and disturb file that the signal of each group up-downgoing passage is disturbed, restore the business in the real unlimited airborne spread process, business information is finally passed through in decay and interference, the dampening information of each passage and a plurality of terminals of interference signal Synchronization Control are finished and are realized the multi-user radio scene simulation.
Because the emulation air interface scene of the wireless network that method that the embodiment of the invention provided is set up is fully based on setting up regulation practical business and parameter in the true wireless network, so also can " playback " to the various random frequency hoppings in the true wireless network.
In addition, the method that the embodiment of the invention provided does not relate to complicated radio transmission K-theoretic operation K, motivated, promptly the air interface scene of certain wireless network of certain period is carried out emulation, after the emulation air interface scene of certain wireless network is set up, this emulation air interface scene can be applied to this wireless network the wireless performance assessment, to the Performance Evaluation of certain algorithm of being applied to this wireless network etc.For example, before the air interface scene of certain wireless network is opened new algorithm, can adopt method provided by the present invention to set up the emulation air interface scene of this wireless network, the actual effect of this new algorithm of assessment in certain base station covers the section in this emulation air interface scene; Perhaps before the edition upgrading, adopt method provided by the present invention to set up the emulation air interface scene of this wireless network, in the actual effect of this emulation air interface scene assessment redaction in certain base station covers the section.
Perhaps, when certain base station needs cutover or resettlement, before base station cutover or resettlement, obtain the information of the preceding residing wireless network air interface scene in this base station of resettlement, adopt method provided by the present invention to set up the emulation air interface scene of this wireless network, to treat that in this emulation air interface scene the base station of cutover or resettlement carries out cutover or resettlement, according to the assessment of each parameter in the emulation air interface scene, can assess the actual effect of the pairing true air interface scene of this emulation air interface scene after the resettlement fast.
As seen, can check some algorithm to be measured, some product or the adaptability of some special scenes in real network by the artificial network air interface scene that the method that the embodiment of the invention provided is set up, practicality and applicability are all very strong.
Referring to Fig. 6, one embodiment of the invention also provides a kind of simulator of air interface scene, comprising:
Acquiring unit 601 is used to obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
The information of eating dishes without rice or wine in the embodiment of the invention can be obtained from the communication system interface for the treatment of the emulation air interface scene by the interface tracking instrument.Such as, the interface tracking instrument can be articulated in the interface between base station and the base station controller.Concrete, if in global system for mobile communications GSM network, the interface tracking instrument can be articulated in the ABIS interface, if in the UMTS network, the interface tracking instrument can be articulated in the IUB interface.After the interface tracking instrument is articulated, can follow the tracks of corresponding time length, for example, can Continuous Tracking 24 hours.The information that the interface tracking instrument is obtained is exactly to treat the information of eating dishes without rice or wine of emulation air interface scene.Those skilled in the art can know that concrete tracking time can be set according to actual demand, and the present invention does not do qualification to this.
Be understandable that, the information of eating dishes without rice or wine can be in the following information partly or entirely: such as, the uplink signal strength, interference strength, the distance that comprise a plurality of terminal uses that base station measurement arrives, can comprise that also the terminal use measures the downstream signal intensity and the interference strength of base station, can also comprise the information such as power control commands of access power grade, up-downgoing passage.This shows, comprised business (for example conversation, note, data service or the like) behavior of each user in the corresponding base station in the information of eating dishes without rice or wine, information such as uplink and downlink signals and neighbor cell signal intensity when each business is carried out.
After obtaining emulated data, can be object just with the simulating scenes of having set up, utilize emulated data to treat the emulation air interface scene and carry out emulation.In the embodiment of the invention, emulated data mainly comprises the business simulating data, in addition, can also comprise decay emulated data and/or interference simulation data.
Particularly, referring to Fig. 7, simulation unit 603 can comprise:
The professional subelement 701 that generates is used to the corresponding terminal of business coupling in the emulated data of generation, and forms the professional spanned file of the corresponding business of record terminal and this terminal institute;
To carry out emulation to air interface scene truly, real professional extremely important in " recovery " this air interface scene.According to the time of initiating of the business in the emulated data business in the air interface scene is matched in the terminal of simulating scenes in the embodiment of the invention.In the practical application, can also the business in the air interface scene be matched in the terminal of simulating scenes further combined with the type of service that is write down in the emulated data, professional time-delay, professional switching, professional information such as Timing Advance.
The process of terminal that business in the air interface scene is matched simulating scenes is relevant with the terminal number that simulating scenes has, if the terminal number that is had in the simulating scenes is less, but the traffic carrying capacity in the air interface scene is bigger, then can allow each terminal wheel flow field simulation professional each time, simulate users a large amount of in the real network by frequently repeating to simulate each business.
In order to make control end can initiate business in real time, the terminal quantity of controlling according to control end in advance in the embodiment of the invention generates professional spanned file, all stores a professional spanned file in each terminal, is used for controlling the professional implementation status of this terminal.In this business spanned file, preserve type of service, the duration that this terminal is initiated, make terminal can carry out the execution and the repetition of each business according to the record of this document according to sequential.
The device that the embodiment of the invention provided can be by the corresponding terminal of business coupling for eating dishes without rice or wine in the information, and forms the professional spanned file of the corresponding business of record terminal and this terminal institute; Controlling each terminal originating service according to each professional initiation time of writing down in the professional spanned file realizes imitation professional in the scene of truly eating dishes without rice or wine.Because emulated data comes from the information of eating dishes without rice or wine, and the information of eating dishes without rice or wine is directly obtained from existing network air interface, so it is authentic and valid that the embodiment of the invention is carried out the data basis of emulation, thereby guaranteed that the embodiment of the invention can treat simulating scenes and carry out real emulation.
Realize truly air interface scene being carried out emulation, the recovery of air interface decay intensity is to consider a factor.Referring to Fig. 8, in another embodiment of the present invention, simulation unit shown in Figure 7 can also comprise:
Decay generates subelement 703, be used for counting in the values for tuning of down going channel according to the signal strength meter of the up-downgoing passage of emulated data, the values for tuning of the up-downgoing passage that each is instantaneous is arranged chronologically, business each time in the emulated data is matched one group of up-downgoing passage, utilize this up-downgoing passage values for tuning to generate a tuning file of decay for each group up-downgoing passage;
Decay emulation subelement 704 is used to utilize the tuning file of decay of generation to produce decay at each group up-downgoing passage.
Signal strength signal intensity in the emulated data is not the signal strength signal intensity in the air interface scene of " truly " in the time of most of.This is because network and terminal can be carried out power control (abbreviation power control) to the signal on the up-downgoing passage most of the time, reducing the energy consumption of base station and portable terminal, this just makes that the signal strength signal intensity that writes down in the emulated data generally speaking all can be lower than the signal strength signal intensity in the actual air interface scene.Only when system closing power control function, the signal strength signal intensity that writes down in the emulated data just can be equivalent to the signal strength signal intensity in the actual air interface.
Can know thus generally speaking, after obtaining emulated data, judge whether the information that writes down in the emulated data has passed through power control, if passed through power control, then needs this signal is carried out power back-off, thereby obtain the signal of no power control up-downgoing passage.Particularly, this decay generation subelement 704 can comprise:
First acquisition module, be used for obtaining the power control commands that is handed down to terminal from emulated data, and this power control commands is converted into tone pitch under the terminal transmit power, utilize the signal strength signal intensity of the data feedback channel that this value compensation obtains from emulated data to obtain not having the signal strength signal intensity of power control data feedback channel;
Second acquisition module, being used for obtaining network side from emulated data is handed down to the power control commands of base station and transfers this power control commands under base station transmitting power tone pitch, utilize the signal strength signal intensity of the down going channel that the compensation of this value obtains from emulated data, obtain not having the signal strength signal intensity of power control down going channel;
First forms module, is used for the signal strength signal intensity of the up-downgoing passage of the no power control of business information correspondence and the power output of emission source are subtracted each other the values for tuning that obtains the up-downgoing passage each time.
The device that the embodiment of the invention provided can also generate a tuning file of decay according to emulated data when business is carried out emulation; Each professional initiation time of writing down in according to professional spanned file utilizes the tuning file of decay to produce decay at each group up-downgoing passage when controlling each terminal originating service, restore the preceding real wireless air propagation state of power control, finally finish the multi-user radio scene simulation of one group of continuous coverage base station by a plurality of terminals of values for tuning Synchronization Control of business information and each passage.Three, utilize the interference simulation data to carry out emulation.
Referring to Fig. 9, in another embodiment of the present invention, simulation unit shown in Figure 7 can also comprise:
Disturb and generate subelement 705, be used for interference signal intensity according to each group up-downgoing passage of error rate calculation of signal strength signal intensity that reads from emulated data and correspondence, the interference signal intensity of the up-downgoing passage that each is instantaneous is arranged chronologically, utilizes the interference signal intensity of this up-downgoing passage to disturb file for each group up-downgoing passage generates one;
Particularly, this interference generation subelement 705 comprises:
First determination module is used in advance going out relation between up-downgoing channel signal intensity, interference signal intensity and the error rate by a plurality of sample statistics;
Second determination module is used for according to the relation between down going channel signal strength signal intensity, interference signal intensity and the error rate, extrapolates the interference signal intensity of up-downgoing passage by the up-downgoing channel signal intensity in the emulated data and the error rate.
The device that the embodiment of the invention provided can also generate one according to emulated data and disturb file when business is carried out emulation; Each professional initiation time of writing down in according to professional spanned file utilizes the interference file that signal of each group up-downgoing passage is disturbed when controlling each terminal originating service.Restore the interference in the real unlimited airborne spread process, finally finish and realize the multi-user radio scene simulation by a plurality of terminals of interference signal Synchronization Control of business information and each passage.
The present invention can describe in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract, program, object, assembly, data structure or the like.Also can in distributed computing environment (DCE), put into practice the present invention, in these distributed computing environment (DCE), by by communication network connected teleprocessing equipment execute the task.In distributed computing environment (DCE), program module can be arranged in the local and remote computer-readable storage medium that comprises memory device.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. the emulation mode of an air interface scene is characterized in that, comprising:
Obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
Form emulated data according to the described information of eating dishes without rice or wine;
Utilize described emulated data that the described emulation air interface scene for the treatment of is carried out emulation.
2. method according to claim 1 is characterized in that, utilizes described emulated data that the described emulation air interface scene for the treatment of is carried out emulation and comprised:
Be the corresponding terminal of the coupling of the business in the described emulated data, and form the professional spanned file of the corresponding business of record terminal and this terminal institute;
Control each terminal originating service according to each professional initiation time of writing down in the described professional spanned file.
3. method according to claim 2 is characterized in that, utilizes described emulated data that the described emulation air interface scene for the treatment of is carried out emulation and also comprised:
Count the values for tuning of down going channel in according to the signal strength meter of the up-downgoing passage in the described emulated data, the values for tuning of the up-downgoing passage that each is instantaneous is arranged chronologically, business each time in the described emulated data is matched one group of up-downgoing passage, utilize described up-downgoing passage values for tuning to generate a tuning file of decay for each group up-downgoing passage;
Each professional initiation time of writing down in according to described professional spanned file utilizes the tuning file of described decay to produce decay at each group up-downgoing passage when controlling each terminal originating service.
4. method according to claim 3 is characterized in that, the values for tuning of counting down going channel according to the signal strength meter of the up-downgoing passage that writes down in the described emulated data in comprises:
From emulated data, obtain the power control commands that is handed down to terminal, and described power control commands is converted into tone pitch under the terminal transmit power, utilize the signal strength signal intensity of the data feedback channel that the tone pitch compensation is obtained from described emulated data under this terminal transmit power to obtain not having the signal strength signal intensity of power control data feedback channel;
Obtaining network side from emulated data is handed down to the power control commands of base station and transfers described power control commands under base station transmitting power tone pitch, utilize the signal strength signal intensity of the down going channel that the tone pitch compensation is obtained under this base station transmitting power from described emulated data, obtain not having the signal strength signal intensity of power control down going channel;
With the signal strength signal intensity of the up-downgoing passage of the no power control of business information correspondence and the power output of emission source are subtracted each other the values for tuning that obtains the up-downgoing passage each time.
5. according to each described method of claim 2 to 4, it is characterized in that, utilize described emulated data that the described emulation air interface scene for the treatment of is carried out emulation and also comprised:
Interference signal intensity according to the signal strength signal intensity that from described emulated data, reads and corresponding each group up-downgoing passage of error rate calculation, the interference signal intensity of the up-downgoing passage that each is instantaneous is arranged chronologically, utilizes the interference signal intensity of described up-downgoing passage to disturb file for each group up-downgoing passage generates one;
Each professional initiation time of writing down in according to described professional spanned file utilizes described interference file that the signal of each group up-downgoing passage is disturbed when controlling each terminal originating service.
6. method according to claim 5 is characterized in that, comprises according to the interference signal intensity of the signal strength signal intensity that reads from described emulated data and corresponding each group up-downgoing passage of error rate calculation:
Go out relation between up-downgoing channel signal intensity, interference signal intensity and the error rate by a plurality of sample statistics in advance;
According to the relation between down going channel signal strength signal intensity, interference signal intensity and the error rate, extrapolate the interference signal intensity of up-downgoing passage by the up-downgoing channel signal intensity in the emulated data and the error rate.
7. method according to claim 2, it is characterized in that, described professional spanned file is kept in each terminal of current simulated environment, described professional spanned file is preserved type of service and the duration that its corresponding terminal is initiated according to sequential, or described professional spanned file is preserved distance between type of service, duration and described terminal and the base station that its corresponding terminal initiates according to sequential.
8. the simulator of an air interface scene is characterized in that, comprising:
Acquiring unit is used to obtain the information of eating dishes without rice or wine for the treatment of the emulation air interface scene;
Generation unit is used for forming emulated data according to the described information of eating dishes without rice or wine;
Simulation unit is used to utilize described emulated data that the described emulation air interface scene for the treatment of is carried out emulation.
9. device according to claim 8 is characterized in that, described simulation unit comprises:
The professional subelement that generates is used to the corresponding terminal of business coupling in the described emulated data, and forms the professional spanned file of the corresponding business of record terminal and this terminal institute;
The business simulating subelement, the professional time synchronized of initiating of each that is used for writing down according to described professional spanned file is controlled each terminal originating service.
10. device according to claim 9 is characterized in that, described simulation unit also comprises:
Decay generates subelement, be used for counting in the values for tuning of down going channel according to the signal strength meter of the up-downgoing passage of described emulated data, the values for tuning of the up-downgoing passage that each is instantaneous is arranged chronologically, business each time in the described emulated data is matched one group of up-downgoing passage, utilize described up-downgoing passage values for tuning to generate a tuning file of decay for each group up-downgoing passage;
Decay emulation subelement is used to utilize the tuning file of described decay to produce decay at each group up-downgoing passage.
11. device according to claim 10 is characterized in that, described decay generates subelement and comprises:
First acquisition module, be used for obtaining the power control commands that is handed down to terminal from emulated data, and described power control commands is converted into tone pitch under the terminal transmit power, utilize the signal strength signal intensity of the data feedback channel that the tone pitch compensation is obtained from described emulated data under this terminal transmit power to obtain not having the signal strength signal intensity of power control data feedback channel;
Second acquisition module, being used for obtaining network side from emulated data is handed down to the power control commands of base station and transfers described power control commands under base station transmitting power tone pitch, utilize the signal strength signal intensity of the down going channel that the tone pitch compensation is obtained under this base station transmitting power from described emulated data, obtain not having the signal strength signal intensity of power control down going channel;
First forms module, is used for the signal strength signal intensity of the up-downgoing passage of the no power control of business information correspondence and the power output of emission source are subtracted each other the values for tuning that obtains the up-downgoing passage each time.
12., it is characterized in that described simulation unit also comprises according to each described device of claim 9 to 11:
Disturb and generate subelement, be used for interference signal intensity according to each group up-downgoing passage of error rate calculation of signal strength signal intensity that reads from described emulated data and correspondence, the interference signal intensity of the up-downgoing passage that each is instantaneous is arranged chronologically, utilizes the interference signal intensity of described up-downgoing passage to disturb file for each group up-downgoing passage generates one;
The interference simulation subelement is used to utilize described interference file that the signal of each group up-downgoing passage is disturbed.
13. device according to claim 12 is characterized in that, described interference generates subelement and comprises:
First determination module is used in advance going out relation between up-downgoing channel signal intensity, interference signal intensity and the error rate by a plurality of sample statistics;
Second determination module is used for according to the relation between down going channel signal strength signal intensity, interference signal intensity and the error rate, extrapolates the interference signal intensity of up-downgoing passage by the up-downgoing channel signal intensity in the emulated data and the error rate.
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| CN 201010121995 CN101801020A (en) | 2010-03-08 | 2010-03-08 | Method and device for simulating air interface scene |
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| CN 201010121995 CN101801020A (en) | 2010-03-08 | 2010-03-08 | Method and device for simulating air interface scene |
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Application publication date: 20100811 |