CN101183906B - Method and apparatus for simulating repeater - Google Patents
Method and apparatus for simulating repeater Download PDFInfo
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Abstract
本发明公开了一种对直放站进行仿真的方法，其特征在于，包括步骤：获得所述直放站接收的输入信号，至少按照两种实际输出功率分别对所述输入信号的输出信号进行仿真；将获得的各仿真结果进行叠加。这样，便实现了对多天线窄带直放站、单天线宽带直放站和多天线宽带直放站的精确仿真，从而提高了无线网络规划的精细程度，提升了规划结果的准确度。
The invention discloses a method for simulating a repeater, which is characterized in that it comprises the steps of: obtaining an input signal received by the repeater, and performing an output signal of the input signal at least according to two kinds of actual output power Simulation; superimpose the obtained simulation results. In this way, the accurate simulation of multi-antenna narrowband repeater, single-antenna broadband repeater and multi-antenna broadband repeater is realized, which improves the fineness of wireless network planning and the accuracy of planning results.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method of emulation and device are carried out in the repeater.
Background technology
Under the prior art,, need carry out accurate emulation to the repeater in the Radio Network System (being repeater) in order to finish the planning of wireless network better.The repeater is a kind of radio transmission transferring equipment that plays the signal humidification in the wireless communication transmissions process.Transmission bandwidth according to the repeater can be divided into it repeater, arrowband (being frequency selecting repeater) and broad band repeater; The repeater, arrowband only can strengthen a kind of signal of frequency, and broad band repeater can strengthen simultaneously to the signal that limits the multiple frequency in the bandwidth.
At present, use existing emulation technology only can carry out emulation to repeater, arrowband (being called for short repeater, single antenna arrowband) with single transmit antenna, and for repeater, arrowband with multiple transmit antennas (being called for short repeater, many antennas arrowband) and broad band repeater (comprising single transmit antenna and multiple transmit antennas), but the method that is not fit to is carried out emulation to it, like this, just influence the fine degree of wireless network planning, thereby reduced the accuracy of program results.
Summary of the invention
The embodiment of the invention provides a kind of method of emulation is carried out in the repeater, in order to improve the fine degree of wireless network planning, promotes the accuracy of program results.
The concrete technical scheme that the embodiment of the invention provides is as follows:
A kind of method of emulation is carried out in the repeater, comprising:
Obtain the input signal that described repeater receives,
At least respectively the output signal of described input signal is carried out emulation according to two kinds real output;
Each simulation result that obtains is superposeed;
Wherein, have the input signal of two kinds of frequencies at least and have the default power output of at least a transmitting antenna, then when emulation is carried out in described repeater, comprise step if described repeater receives:
Determine the input signal that signal strength signal intensity is the strongest, and determine the real output of the input signal that this signal strength signal intensity is the strongest according to described default power output;
The real output that obtains other input signals according to the strongest input signal of described signal strength signal intensity and real output thereof;
Respectively the output signal that correspond respectively to described at least a transmitting antenna of respective input signals after amplify described repeater carried out emulation according to each real output that obtains.
A kind of simulator comprises:
The second communication unit is used to receive the input signal that has two kinds of different frequencies at least;
Second memory cell is used to store the default power output and the default power loss value of the transmitting antenna that the repeater had of this device institute emulation;
Second processing unit is used for obtaining from described first memory cell default power output of the transmitting antenna of its storage, and determines the real output of each input signal according to this default power output;
Second simulation unit is used for respectively the output signal of respective input signals after amplify the repeater being carried out emulation according to each real output that obtains;
Second superpositing unit, each simulation result that is used for obtaining superposes.
In the embodiment of the invention, simulator is when carrying out emulation to the repeater, obtain earlier the input signal that described repeater receives, and respectively the output signal of described input signal is carried out emulation according to two kinds real output at least, and each simulation result that will obtain superposes.Like this, just realized accurate emulation, thereby improved the fine degree of wireless network planning, promoted the accuracy of program results repeater, many antennas arrowband, single antenna broad band repeater and many antennas broad band repeater.
Description of drawings
Fig. 1 is a single antenna broad band repeater functional schematic in the embodiment of the invention;
Fig. 2 is repeater, a many antennas arrowband functional schematic in the embodiment of the invention;
Fig. 3 is to many antennas arrowband repeater emulation schematic diagram in the embodiment of the invention;
Fig. 4 is first kind of simulator functional structure chart in the embodiment of the invention;
Fig. 5 is to repeater, many antennas arrowband simulation flow figure in the embodiment of the invention;
Fig. 6 is a single antenna broad band repeater functional schematic in the embodiment of the invention;
Fig. 7 is many antennas broad band repeater functional schematic in the embodiment of the invention;
Fig. 8 is to single antenna broad band repeater emulation schematic diagram in the embodiment of the invention;
Fig. 9 is second kind of simulator functional structure chart in the embodiment of the invention;
Figure 10 is to single antenna broad band repeater simulation flow figure in the embodiment of the invention;
Figure 11 is many antennas broad band repeater functional schematic in the embodiment of the invention.
Embodiment
In order to improve the fine degree of wireless network planning, promote the accuracy of program results, in the invention process, when emulation is carried out in the repeater, obtain earlier the input signal that this repeater receives, respectively the output signal of described input signal is carried out emulation according to two kinds real output at least again and each simulation result that will obtain superposes.Wherein:
When emulation is carried out in repeater, many antennas arrowband, determine the default power output of at least two kinds of transmitting antennas that this repeater, many antennas arrowband is had earlier, and it is confirmed as at least two kinds of real outputs; According to described at least two kinds of real outputs the output signal of input signal after amplify repeater, many days arrowbands carried out emulation respectively again.
When the single antenna broad band repeater is carried out emulation, determine the default power output of the transmitting antenna that this single antenna broad band repeater is had earlier, and the strongest input signal of definite signal strength signal intensity, to determine the real output of each input signal according to described default power output and the strongest input signal of described signal strength signal intensity, according to each real output the output signal of respective input signals after the single antenna broad band repeater amplifies carried out emulation respectively again.
When many antennas broad band repeater is carried out emulation, determine the default power output of at least two kinds of transmitting antennas that this many antennas broad band repeater is had earlier, the single antenna broad band repeater is carried out method of emulation corresponds respectively to the default power output of described at least two kinds of transmitting antennas to each input signal output signal carry out emulation according to above-mentioned again, and then each simulation result that will obtain superposes.
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
Consult illustrated in figures 1 and 2ly, the repeater, arrowband (be called for short repeater, single antenna arrowband) with single transmit antenna only can strengthen a kind of input signal of frequency, and sends a kind of output signal of frequency from transmitting antenna according to default power output; And the repeater, arrowband (being called for short repeater, many antennas arrowband) with multiple transmit antennas also only can strengthen a kind of input signal of frequency, but can send the output signal of corresponding frequencies respectively on many transmitting antennas according to identical/different default power output.It is that example describes that present embodiment only sends output signal with repeater, many antennas arrowband according to the default power output of difference.Consult shown in Figure 3, in the present embodiment, to repeater, many antennas arrowband (hereinafter referred to as repeater A) when carrying out emulation, it is regarded as the combination of repeater, a plurality of single antenna arrowband and respectively emulation is carried out in each repeater, single antenna arrowband, and then each simulation result superposeed, the result after the stack promptly is the emulation to repeater, many antennas arrowband.
Consult shown in Figure 4, in the embodiment of the invention, use simulator A that emulation is carried out in repeater, many antennas arrowband, simulator A comprises first communication unit 400, first memory cell 401, first processing unit 402, first simulation unit 403, first superpositing unit 404 and first user interface section 405.
First communication unit 400 is used to receive a kind of input signal (hereinafter referred to as input signal A) of frequency.
First memory cell 401 is used to store the default power output of every transmitting antenna on the repeater, many antennas arrowband of this device institute emulation.
First processing unit 402 is used for obtaining from first memory cell 401 each default power output of its storage.
First simulation unit 403 is used for according to each the default power output that obtains input signal each output signal after amplify repeater, many antennas arrowband being carried out emulation.
The simulation result that first superpositing unit 404 is used for obtaining superposes;
First user interface section 405 is used for the simulation result after the stack is presented to the user.
Based on above-mentioned simulator A, in the present embodiment, with simulator A emulation being carried out in the repeater, arrowband (hereinafter referred to as repeater A) with 2 transmitting antennas is that example is introduced.Consult shown in Figure 5ly, simulator A is as follows to the detailed process that repeater A carries out emulation:
Step 500: the input signal that repeater A is received is sent to simulator A.
In the present embodiment, the input signal that simulator A is received is called signal A, and the power of signal A is-60dBm.
Step 510: simulator A determines that the default power output of two transmitting antennas of repeater A is respectively 33dBm and 30dBm.
In the present embodiment, because repeater A is repeater, many antennas arrowband, therefore, the default power output of two transmitting antennas of repeater A promptly is its real output separately.
Step 520: simulator A carries out emulation according to the real output of 33dBm and 30dBm to signal A each output signal after repeater A amplifies respectively; In the present embodiment, be that the output signal of 33dbm is called signal A1, and be that the output signal of 30dbm is called signal A2 real output with real output.
In actual applications, carry out in the operation interface that simulation software provides after parameter is provided with accurately, simulation software just can obtain corresponding simulation result automatically.For example, in the embodiment of the invention, when signal A each output signal after repeater A amplifies is carried out emulation, except the real output of each output signal will be set, also need to be provided with the height of frequency, transmitting antenna of each output signal and direction or the like parameter, then, simulation software calculates the final distribution situation of each output signal respectively by being embedded in its inner propagation model (being the algorithm that signal calculated is propagated), comprise frequency and field intensity when each output signal finally arrives user terminal, be also referred to as field intensity map.The field intensity map of certain output signal correspondence promptly is to the final simulation result of this output signal.The simulation operations of mentioning in following examples is all undertaken by above-mentioned flow process, will repeat no more.
Step 530: simulator A superposes the simulation result of signal A1 and signal A2, and the result after the stack promptly is the accurate emulation to the functional effect of repeater A.
Be different from repeater, above-mentioned arrowband, broad band repeater strengthens simultaneously to the signal that limits the multiple frequency in the bandwidth, and broad band repeater also is divided into broad band repeater (abbreviating the single antenna broad band repeater as) with single transmit antenna and the broad band repeater (abbreviating many antennas broad band repeater as) with multiple transmit antennas.
Consult Fig. 6, Fig. 7 and shown in Figure 8, the single antenna broad band repeater can strengthen the input signal of multiple frequency, and sends a plurality of output signals with corresponding power output with reference to default power output from transmitting antenna; And the broad band repeater (being called for short many antennas broad band repeater) with multiple transmit antennas also can strengthen the input signal of multiple frequency, and sends multiple output signal with corresponding frequencies respectively with reference to identical/different default power output on many transmitting antennas.
Consult shown in Figure 9, in the embodiment of the invention, the simulator B that the single antenna broad band repeater is carried out emulation comprises second communication unit 900, second memory cell 901, second processing unit 902, second simulation unit 903 and second superpositing unit 904 and second user interface section 905.
The simulation result that second superpositing unit 904 is used for obtaining superposes;
Second user interface section 905 is used for the simulation result after the stack is presented to the user.
Based on above-mentioned simulator B, to consult shown in Figure 10ly, in the embodiment of the invention, simulator B is as follows to the detailed process that single antenna broad band repeater (hereinafter referred to as repeater B) carries out emulation:
Step 1000: a plurality of input signals that repeater B is received are sent to simulator B.
In the present embodiment, repeater B receives four input signals, is called signal B, signal C, signal D and signal E, its signal strength signal intensity is respectively-70dBm ,-72dBm ,-79dBm and-80dBm.
In actual applications, simulator B can carry out emulation to the output signal of all input signals after repeater B amplifies, to obtain more accurate simulation result, also can only carry out emulation, to alleviate the operation burden of simulator B to the output signal of the input signal of signal strength signal intensity in preset range after repeater B amplifies; Present embodiment is that example is introduced with second kind of situation only.
Step 1100: simulator B determines the default power output of repeater B; In the present embodiment, the default power output of repeater B is 43dBm.
Step 1200: simulator B determines the signal of signal strength signal intensity maximum, and obtains the real output of this signal according to default power output.
In actual applications, the real output of strong input signal=default power output-default power loss value, in the present embodiment, the strongest input signal is signal A, default power output is 43dBm, and default power loss value is 2dB, so:
Real output=43dBm-2dB=41dBm of signal A
Step 1300: simulator B determines the real output of other input signals according to the real output of the signal of signal strength signal intensity maximum.
In the present embodiment, the output signal that is not more than the input signal of 9db with the signal strength difference of signal A in all input signals that simulator B only receives repeater B is carried out emulation, so, simulator B just only carries out emulation to signal A, signal B and the output signal of signal C after repeater B amplifies.In simulation process, real output-(the strongest input signal signal strength signal intensity of the strongest input signal signal strength signal intensity-non-) of strong input signal of the non-real output of strong input signal=, so, in the present embodiment:
Real output=43dBm-of signal B (70dBm-(72dBm))=41dBm
Real output=43dBm-of signal C (70dB-(79dB))=34dBm
Step 1400: the output signal after simulator B amplifies its repeater B that respectively hangs oneself according to the real output of each input signal is carried out emulation.
Step 1500: each simulation result that simulator B will obtain superposes, and the result after the stack promptly is the accurate emulation to the single antenna broad band repeater.
Based on the foregoing description, to many antennas broad band repeater (hereinafter referred to as repeater C) when carrying out emulation, consult shown in Figure 11, repeater C is regarded as the combination of a plurality of single antenna broad band repeaters and carries out emulation according to step 1000-step 1500 pair each single antenna broad band repeater respectively, and then each simulation result superposeed, result after the stack promptly is the accurate emulation to repeater C, does not repeat them here.
In the embodiment of the invention, simulator is when carrying out emulation to the repeater, obtain earlier the input signal that described repeater receives, and respectively the output signal of described input signal is carried out emulation according to two kinds real output at least, and each simulation result that will obtain superposes.Like this, just realized accurate emulation, thereby improved the fine degree of wireless network planning, promoted the accuracy of program results repeater, many antennas arrowband, single antenna broad band repeater and many antennas broad band repeater.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. one kind is carried out method of emulation to the repeater, it is characterized in that, comprises step:
Obtain the input signal that described repeater receives,
At least respectively the output signal of described input signal is carried out emulation according to two kinds of real outputs;
Each simulation result that obtains is superposeed;
Wherein, have the input signal of two kinds of frequencies at least and have the default power output of at least a transmitting antenna, then when emulation is carried out in described repeater, comprise step if described repeater receives:
Determine the input signal that signal strength signal intensity is the strongest, and determine the real output of the input signal that this signal strength signal intensity is the strongest according to described default power output;
The real output that obtains other input signals according to the strongest input signal of described signal strength signal intensity and real output thereof;
Respectively the output signal that correspond respectively to described at least a transmitting antenna of respective input signals after amplify described repeater carried out emulation according to each real output that obtains.
2. the method for claim 1 is characterized in that, when determining the real output of the strongest described input signal according to described default power output, comprises step:
Determine default power loss value;
In described default power output, deduct described power loss value.
3. the method for claim 1 is characterized in that, when obtaining the real output of described other input signals, comprises step:
Determine the difference of the input signal that described other input signals and described signal strength signal intensity are the strongest;
In the real output of the strongest input signal of described signal strength signal intensity, deduct described difference.
4. as claim 2 or 3 described methods, it is characterized in that, obtain each input signal after, only the input signal of difference in preset range with the strongest input signal of described signal strength signal intensity carried out emulation.
5. the method for claim 1 is characterized in that, has the input signal of two kinds of different frequencies at least and has the default power output of at least two kinds of transmitting antennas if described repeater receives, and when then emulation being carried out in described repeater, comprises step:
Method according to claim 1 obtains the simulation result of output signal that each input signal corresponds respectively to the default power output of described at least two kinds of transmitting antennas;
Each simulation result that obtains is superposeed.
6. a simulator is characterized in that, comprising:
The second communication unit is used to receive the input signal that has two kinds of different frequencies at least;
Second memory cell is used to store the default power output and the default power loss value of the transmitting antenna that the repeater had of this device institute emulation;
Second processing unit is used for obtaining from described first memory cell default power output of the transmitting antenna of its storage, and determines the real output of each input signal according to this default power output;
Second simulation unit is used for respectively the output signal of respective input signals after amplify the repeater being carried out emulation according to each real output that obtains;
Second superpositing unit, each simulation result that is used for obtaining superposes.
7. simulator as claimed in claim 6 is characterized in that, described second processing unit is determined the real output of the input signal of signal strength signal intensity maximum according to described default power output and default power loss value.
8. simulator as claimed in claim 7, it is characterized in that, described second processing unit is according to the difference of the strongest input signal of other input signals and described signal strength signal intensity, and the real output of the strongest input signal of this signal strength signal intensity is determined the corresponding real output of described other input signals.
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| CN2007101797073A CN101183906B (en) | 2007-12-17 | 2007-12-17 | Method and apparatus for simulating repeater |
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| CN2007101797073A CN101183906B (en) | 2007-12-17 | 2007-12-17 | Method and apparatus for simulating repeater |
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| CN115297500A (en) * | 2022-06-21 | 2022-11-04 | 深圳市广和通无线股份有限公司 | Debugging method, system, device, electronic device and storage medium for repeater |
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| CN1691557A (en) * | 2004-04-28 | 2005-11-02 | 大唐移动通信设备有限公司 | Implementing method for generating random user and communication network simulation method |
| CN1736120A (en) * | 2002-12-18 | 2006-02-15 | 希林·法特米·德赫哈恩 | Communication network and method for simulating or designing a communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736120A (en) * | 2002-12-18 | 2006-02-15 | 希林·法特米·德赫哈恩 | Communication network and method for simulating or designing a communication network |
| CN1691557A (en) * | 2004-04-28 | 2005-11-02 | 大唐移动通信设备有限公司 | Implementing method for generating random user and communication network simulation method |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-312186A 2004.11.04 |
| 李娜.《CDMA无线宽带小功率直放站的研制及性能分析》.《华中科技大学硕士学位论文》.2006,第41-59页. * |
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