CN101365202B - Wireless network simulating method and system - Google Patents
Wireless network simulating method and system Download PDFInfo
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- CN101365202B CN101365202B CN2007101401235A CN200710140123A CN101365202B CN 101365202 B CN101365202 B CN 101365202B CN 2007101401235 A CN2007101401235 A CN 2007101401235A CN 200710140123 A CN200710140123 A CN 200710140123A CN 101365202 B CN101365202 B CN 101365202B
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Abstract
The invention discloses a method for simulating the wireless network. The method comprises the following steps: step S102, establishing a base station database of a wireless network, and setting the terminal mobile parameter and the service parameter, wherein, the base station database includes the relevant information of the base station database; step S104, activating the base station which can provide service to the terminal according to the terminal mobile parameter, the business parameter and the relevant information of the base station database; and step S106, when the terminal position is changed, changing the relevant information of the base station which cannot provide services to the terminal in the changed position according to the changed terminal mobile parameter and the business parameter so that the base station which comprises the changed relevant information can provide services to the position changed terminal. Furthermore, the invention also discloses a system for simulating the wireless network.
Description
Technical field
The present invention relates to wireless network emulation field, and especially, relate to a kind of emulation mode and system of wireless network.
Background technology
In the wireless network of mobile communication system was built, the most important work before the engineering construction was exactly the pre-planning emulation of network.The wireless network emulation that approaches true environment help to future network business and performance carry out more accurate prediction, instruct wireless network to cover and capacity planning work better.Therefore, how to build better wireless network simulated environment in the laboratory is the heat subject that many mobile communication experts study always.
In traditional wireless network emulation mode, most sofeware simulation methods that adopt computer simulation.Usually, can comprise following processing: at first,, set up virtual wireless propagation environment model according to the measurement data of local radio signal propagation and the electronic chart of this region; Afterwards, on electronic chart, carry out the base station signal emulation of coverage capability, obtain the simulated effect figure of wireless network planning, be used to instruct engineering practice.Obviously, the method for these computer software simulation wireless network environments will inevitably have a lot of limitation, the simulation accuracy problem that its main aspect is a software simulation and the complexity of actual wireless network.
Although can adopt electronic chart more accurately, for example, substitute statistical model with the ray trace model, there are a lot of actual scenes still can't emulation.And, in the middle of emulation, virtual base station, virtual portable terminal cause very big influence to the simulation accuracy of whole network, and a lot of practical problem is because software to the model simplification of base station and terminal and conductively-closed is fallen, therefore can't further improve simulation accuracy.
For solving this type of problem, a lot of communication equipment companies or scientific research institution have proposed the channel simulation system of simulation hardware, based on the channel model theory, realize channel simulation with hardware system with this system.So just can adopt true base station and portable terminal to carry out simulation work in the laboratory.Through check, this method has obtained good effect, constantly promotes, and will become the main flow of wireless channel simulation method.
Yet, these wireless channel hardware simulation systems are mainly used in the performance simulation of a limited number of base station cells at present, for the need of work of the wireless network performance test and the network planning, the urgent problem of bringing is: the problem that can't solve many base station radios of simulation network environment.Want the cordless communication network in big zone of emulation, generally need comprise a large number of base station, if but adopt the hardware channel analogue system, just must adopt real base station system, and the base station number that laboratory environment provided is limited, can't build real base station network system at all.
How to simulate so many base station radios environment accurately and be still the difficult problem of present scientific research, and do not propose the wireless network that majority amount base station is formed is carried out the scheme of simulation hardware so far as yet.
Summary of the invention
Consider the problems referred to above and make the present invention that for this reason, main purpose of the present invention is to provide a kind of simulating scheme of wireless network.
According to embodiments of the invention, provide a kind of emulation mode of wireless network.
This method comprises: step S102, and set up the base station data storehouse of wireless network, and the moving parameter and the service parameter of terminal are set, wherein, the base station data storehouse comprises the relevant information of base station; Step S104, according to the moving parameter and the service parameter of terminal, and the relevant information in the base station data storehouse, activation can provide serving base station for terminal; And step S106, when terminal location changes, according to the moving parameter and the service parameter of the terminal after changing, the change for a change terminal behind the position provides the relevant information of serving base station, make have relevant information after changing the base station for a change the terminal behind the position service is provided.
Wherein, relevant information can comprise: base station numbering, base station position information and cell system parameter.
And the moving parameter of terminal can comprise: the translational speed of location information of terminals, terminal and the height of terminal.And the service parameter of terminal can comprise: the type of service of terminal.
In addition, after step S106, further comprise: when the terminal behind the position for a change provides serving base station quantity to be able to provide serving base station quantity for terminal, stop to change the relevant information of residue base station.
A kind of analogue system of wireless network is provided according to another embodiment of the present invention.
This system comprises: the base station data storehouse is used to store the relevant information of base station;
The terminal parameter module is used to be provided with the also moving parameter and the service parameter of storage terminal, and the moving parameter of real-time monitoring terminal and service parameter variation;
The base station activation controller is used for moving parameter and service parameter according to terminal parameter module terminal, and the relevant information in the base station data storehouse, and activation can provide serving base station for terminal; When terminal location changed, according to the moving parameter and the service parameter that change the back terminal, the change for a change terminal behind the position provided the relevant information of serving base station, make have relevant information after changing the base station for a change the terminal behind the position service is provided.
Wherein, relevant information can comprise: base station numbering, base station position information and cell system parameter.
And the moving parameter of terminal can comprise: the translational speed of location information of terminals, terminal and the height of terminal.And the service parameter of terminal can comprise: the type of service of terminal.
In addition, in this system, when the terminal behind the position for a change provided serving base station quantity to be able to provide serving base station quantity for terminal, the base station activation controller stopped to change the relevant information of residue base station.
By technique scheme of the present invention, can have the system of a plurality of base stations by the base station simulation of limited quantity; And, can test out the network performance related data, thereby instruct network planning design; Simultaneously also can define network performance parameters such as terminal miscellaneous service and demodulation threshold, test handoff parameter, power contorl parameters, thereby can the network characteristic in future be predicted accurately; Characteristic that can also Validity Test equipment makes test result greatly near the real performance index of wireless network, therefore can be good at reaching test purpose in the laboratory.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the emulation mode of the wireless network of the inventive method embodiment;
Fig. 2 is the schematic diagram according to base station activation in the emulation mode of the wireless network of the inventive method embodiment;
Fig. 3 is according to the schematic diagram along with user's a plurality of base stations of mobile activation in the emulation mode of the wireless network of the inventive method embodiment;
Fig. 4 is the block diagram of analogue system of the wireless network of system according to the invention embodiment; And
Fig. 5 is the block diagram of structure example of analogue system of the wireless network of system according to the invention embodiment.
Embodiment
Method embodiment
In the present embodiment, provide a kind of emulation mode of wireless network, this method can be simulated whole network by one group of base station.
As shown in Figure 1, comprise according to the emulation mode of the wireless network of present embodiment: step S102, set up the base station data storehouse of wireless network, and terminal is set (for example, can be mobile phone) moving parameter and service parameter, wherein, the base station data storehouse comprises the relevant information of base station; Step S104, according to the moving parameter and the service parameter of terminal, and the relevant information in the base station data storehouse, activation can provide serving base station for terminal; And step S106, when terminal location changed, according to the terminal parameter after changing, the change for a change terminal behind the position provided the relevant information of serving base station, make have relevant information after changing the base station for a change the terminal behind the position service is provided.
Wherein, relevant information can comprise: base station numbering, base station position information and cell system parameter.
And the moving parameter of terminal can comprise: the translational speed of location information of terminals, terminal and the height of terminal.And the service parameter of terminal can comprise: the type of service of terminal.The translational speed of terminal, highly, position and type of service etc. determined the requirement to base station signal.
The base station activation control principle as shown in Figure 2 in the above-mentioned processing.When portable terminal is in position I, since itself and base station apart from different, and receiver sensitivity, professional demodulation threshold, the reason of Active Set restricted number, can only receive the base station and be numbered 001,002,003 and 004 signal, so available true test base station A under experimental situation, B, C, D come the signal of anolog base station 001,002,003,004.
Along with moving of terminal, in-position II at a time, this moment is because 001,002 distance increases apart from the base station, signal become weak can not demodulation and Active Set is withdrawed from these two base stations, closely make signal strengthen in this position owing to becoming on the contrary, so these two base stations are added Active Sets with base station 005,006 distance.So the parameter to true test base station A, B changes, thus the signal of anolog base station 005,006, along with terminal is moved further, the signal weaker of base station 003,004, test base station C, D change parameter and simulate other signal of base station.And the like, the just available limited test base station of the signal of whole network simulates out.That is, repeat the processing of above-mentioned steps S106.
Like this, as shown in Figure 3, the wireless network in whole zone is according to the set that the variation that reaches Active Set is divided into several base stations of moving of terminal, each set is represented in broken circle as figure, one group of true base station of test usefulness is used for simulating the base station signal in each set, terminal motion set changes, and the parameter of base station changes thereupon.Change along with terminal location, base station in the base station data storehouse is activated successively, the parameter configuration of true base station constantly changes, and becomes the purpose that a system that does not stop to change continuously reaches the whole network of simulation, thereby has simulated the network system with greater number base station by the base station of limited quantity.
In addition, after step S106, further comprise: when the terminal behind the position for a change provides serving base station quantity to be able to provide serving base station quantity for terminal, stop to change the relevant information of residue base station.As shown in Figure 2, terminal needs 4 base stations to provide service for it, when terminal moves to position II, base station 001,002 is changed to base station 005,006, thereby satisfied for terminal provides the serving base station quantitative requirement, if still have operable base station also not rechange in the network.
In addition, with 4 base stations be terminal service is provided only is an example, the translational speed of terminal and the signal(l)ing condition of present position are changed into the quantity that terminal provides serving base station.
System embodiment
A kind of analogue system of wireless network is provided in the present embodiment.This system can be used for hardware device test and the applied in network performance test and the network planning design of base station controller and base station in the network.
As shown in Figure 4, the analogue system according to the wireless network of present embodiment comprises:
Base station data storehouse 402 is used to store the relevant information of base station, and wherein, relevant information can comprise: base station numbering, base station position information and cell system parameter;
Terminal parameter module 404, be used to be provided with the also moving parameter and the service parameter of storage terminal, and the moving parameter of real-time monitoring terminal and service parameter variation, wherein, the moving parameter of terminal can comprise: the translational speed of location information of terminals, terminal and the height of terminal; The service parameter of terminal can comprise: the type of service of terminal;
Base station activation controller 406 is used for moving parameter and service parameter according to terminal parameter module 404 terminals, and the relevant information in the base station data storehouse 402, and activation can provide serving base station for terminal; When terminal location changed, according to the moving parameter and the service parameter that change the back terminal, the change for a change terminal behind the position provided the relevant information of serving base station, make have relevant information after changing the base station for a change the terminal behind the position service is provided.
In addition, in this system, when the terminal behind the position for a change provided serving base station quantity to be able to provide serving base station quantity for terminal, the base station activation controller stopped to change the relevant information of residue base station.
When reality is implemented, this system can comprise real terminal operating environment, real base station operational environment and hardware channel analogue system three, and comprise the base station of one group of limited quantity, the portable terminal of some limited quantities, and, the base station parameter database, end message monitoring system, base station activation control system.
As shown in Figure 5, this analogue system by the base station data storehouse of one group of true base station 500, wireless channel simulation system 501, whole simulation network (promptly, represent real operational environment) 502, some portable terminals (that is, representing real running environment) 503, terminal parameter module (also can be the end message detection system) 504, base station activation control system 506 constitute.As mentioned above, terminal parameter module 504 is used for the service parameter and the business information of setting terminal, is used for adjusting in real time a plurality of portable terminals 503 and wireless channel simulation system 501.Base station activation control system 506 judges whether to activate new base station system by the distance of real-time sense terminals and base station, stops original base station signal simulation; Simultaneously, base station activation control system 506 control data library modules 502 and group of base stations 500.
In sum, by means of technical scheme of the present invention, the base station simulation by limited quantity has the system of a plurality of base stations; And, can under the situation of given network base station parameter and portable terminal parameter, test out the network performance related data, for example, signal strength informations such as RSCP, Ec/Io, thus network planning design can be instructed; Simultaneously also can define network performance parameters such as terminal miscellaneous service and demodulation threshold, test handoff parameter, power contorl parameters, thereby can the network characteristic in future be predicted accurately; In addition, for various Wireless Communication Equipment such as base station, base station controller manufacturer, this simulation hardware mechanism can also Validity Test equipment characteristic, this is because this system adopts real base station and terminal, so, therefore can be good at reaching test purpose in the laboratory greatly near the real performance index of wireless network.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the emulation mode of a wireless network is characterized in that, comprising:
Step S102 sets up the base station data storehouse of described wireless network, and the moving parameter and the service parameter of terminal are set, and wherein, described base station data storehouse comprises the relevant information of base station;
Step S104, according to the described moving parameter and the service parameter of described terminal, and the described relevant information in the described base station data storehouse, activation can provide serving base station for described terminal; And
Step S106, when described terminal location changes, moving parameter and service parameter according to the described terminal behind the change position, the change for a change described terminal behind the position provides the relevant information of serving base station, and the terminal of the described base station that makes the relevant information that has after changing after for described change position provides service.
2. the emulation mode of wireless network according to claim 1 is characterized in that, described relevant information comprises: base station numbering, base station position information and cell system parameter.
3. the emulation mode of wireless network according to claim 1 is characterized in that, the moving parameter of described terminal comprises: the translational speed of described location information of terminals, described terminal and the height of described terminal.
4. the emulation mode of wireless network according to claim 1 is characterized in that, the service parameter of described terminal comprises: the type of service of described terminal.
5. according to the emulation mode of each described wireless network in the claim 1 to 4, it is characterized in that, after described step S106, further comprise: when providing serving base station quantity to be able to provide serving base station quantity for the terminal behind the described change position, stop to change the described relevant information of residue base station for described terminal.
6. the analogue system of a wireless network is characterized in that, comprising:
The base station data storehouse is used to store the relevant information of base station;
The terminal parameter module is used to be provided with the also moving parameter and the service parameter of storage terminal, and the described moving parameter and the variation of described service parameter of monitoring described terminal in real time;
The base station activation controller is used for described moving parameter and described service parameter according to terminal described in the described terminal parameter module, and the described relevant information in the described base station data storehouse, and activation can provide serving base station for described terminal; When described terminal location changes, moving parameter and service parameter according to described terminal behind the change position, change can't provide the relevant information of serving base station for the terminal behind the described change position, and the terminal of the described base station that makes the relevant information that has after changing after for described change position provides service.
7. the analogue system of wireless network according to claim 6 is characterized in that, described relevant information comprises: base station numbering, base station position information, cell system parameter.
8. the analogue system of wireless network according to claim 6 is characterized in that, the moving parameter of described terminal comprises: the translational speed of described location information of terminals, described terminal, the height of described terminal.
9. the analogue system of wireless network according to claim 6 is characterized in that, the service parameter of described terminal comprises: the type of service of described terminal.
10. according to the analogue system of each described wireless network in the claim 6 to 9, it is characterized in that, when providing serving base station quantity to be able to provide serving base station quantity for described terminal for the terminal behind the described change position, described base station activation controller stops to change the described relevant information of residue base station.
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| CN2007101401235A CN101365202B (en) | 2007-08-06 | 2007-08-06 | Wireless network simulating method and system |
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| CN2007101401235A CN101365202B (en) | 2007-08-06 | 2007-08-06 | Wireless network simulating method and system |
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| CN101365202A CN101365202A (en) | 2009-02-11 |
| CN101365202B true CN101365202B (en) | 2011-11-30 |
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| CN106851674B (en) * | 2017-03-10 | 2019-10-25 | 广州杰赛科技股份有限公司 | Wireless Network Simulation method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189944A (en) * | 1996-04-26 | 1998-08-05 | 摩托罗拉公司 | Method and appts. for controlling a wireless communication system |
| CN1494338A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司上海第二 | Large telephone traffic volume simulation testing system of base station controller |
| CN1885988A (en) * | 2006-06-13 | 2006-12-27 | 北京邮电大学 | Dynamic simulation apparatus and method for network layer performance of the third generation mobile communication system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189944A (en) * | 1996-04-26 | 1998-08-05 | 摩托罗拉公司 | Method and appts. for controlling a wireless communication system |
| CN1494338A (en) * | 2002-10-31 | 2004-05-05 | 深圳市中兴通讯股份有限公司上海第二 | Large telephone traffic volume simulation testing system of base station controller |
| CN1885988A (en) * | 2006-06-13 | 2006-12-27 | 北京邮电大学 | Dynamic simulation apparatus and method for network layer performance of the third generation mobile communication system |
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