CN203775418U - Gain value setting device and GSM (Global System for Mobile Communication) base station amplification system - Google Patents
Gain value setting device and GSM (Global System for Mobile Communication) base station amplification system Download PDFInfo
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- CN203775418U CN203775418U CN201420016484.4U CN201420016484U CN203775418U CN 203775418 U CN203775418 U CN 203775418U CN 201420016484 U CN201420016484 U CN 201420016484U CN 203775418 U CN203775418 U CN 203775418U
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- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 32
- 238000010295 mobile communication Methods 0.000 title description 3
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Abstract
The utility model discloses a gain value setting device, which comprises a digital signal processing module and an MCU chip, wherein the digital signal processing module is connected between a radio frequency down converter and a radio frequency up converter of a base station amplification system; and the MCU chip is connected between the digital signal processing module and the gain control chip of the base station amplification system. The utility model also provides a GSM base station amplification system. The gain value setting device and the GSM base station amplification system have the beneficial effects that the digital signal processing module is used for processing downlink radio frequency signals, the broadcast channel power is obtained and transmitted to the MCU chip, the MCU chip monitors the broadcast signal power and regulates setting of the gain control chip, and the function of automatic gain value setting can be realized. Accuracy of gain value setting is improved, and the working efficiency of setting the gain value of the control chip by installation and debugging personnel is improved.
Description
Technical field
The utility model relates to wireless communication technology field, particularly a kind of yield value setting device and GSM(Global System for Mobile Communication, global system for mobile communications) base station amplification system.
Background technology
At present, GSM base station, in order to expand the coverage area, generally increases a peripheral auxiliary equipment on GSM base station, and this peripheral auxiliary equipment is the base station amplification system of this area common name.Base station amplification system can increase the power output of GSM base station, increases base station signal coverage.
The descending gain link of general base station amplification system mainly comprises gain control chip, radio frequency down-conversion device, radio-frequency-up-converter and power amplifier, and Installation and Debugging personnel rule of thumb arrange the yield value of gain control chip.Because the actual operation situation of each base station is different, this has caused the accuracy of setting of yield value not high.
Utility model content
Based on this, be necessary, for the yield value of prior art, the problem that accuracy is not high is set, a kind of yield value setting device and GSM base station amplification system are provided.
A kind of yield value setting device, comprise digital signal processing module and MCU(Micro Control Unit, micro-control unit) chip, digital signal processing module is connected between the radio frequency down-conversion device and radio-frequency-up-converter of base station amplification system, and MCU chip is connected between digital signal processing module and the gain control chip of base station amplification system.
Above-mentioned yield value setting device, utilize data-signal processing module to process downlink radio-frequency signal, obtain the power of broadcast channel and be sent to MCU chip, MUC chip monitors and adjusts the setting of gain control chip to the power of broadcast singal, realizes the function of the Lookup protocol of yield value.Not only improve the accuracy of the setting of yield value, and improved Installation and Debugging personnel and arrange the operating efficiency of the yield value of gain control chip.
A kind of GSM base station amplification system, comprise MCU chip, low noise amplifier and the first duplexer being connected successively, gain control chip, radio frequency down-conversion device, digital signal processing module, radio-frequency-up-converter, power amplifier, the second duplexer, the input of MCU chip connects digital signal processing module, and the output of MCU chip connects gain control chip; Low noise amplifier is connected between first duplexer and the second duplexer, and first duplexer is connected with the FPDP of base station, and the second duplexer is connected with the antenna of base station.
Said GSM base station amplification system, the yield value setting device that utilizes digital signal processing module and MCU chip to form arranges descending gain, realizes the function of the Lookup protocol of yield value.Not only improve the accuracy that gain arranges, and improved Installation and Debugging personnel and arrange the operating efficiency of the yield value of gain control chip.
Brief description of the drawings
Fig. 1 is the structured flowchart of a kind of execution mode of the utility model yield value setting device;
Fig. 2 is the structured flowchart of a kind of execution mode of digital signal processing module in Fig. 1;
Fig. 3 is the structured flowchart of a kind of execution mode of the Logical processing unit in Fig. 2;
Fig. 4 is the structured flowchart of a kind of execution mode of the utility model GSM base station amplification system.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail.
First yield value setting device is described:
With reference to figure 1, a kind of yield value setting device, comprise digital signal processing module and MCU chip, digital signal processing module is connected between the radio frequency down-conversion device and radio-frequency-up-converter of base station amplification system, and MCU chip is connected between digital signal processing module and the gain control chip of base station amplification system.
The operation principle of this yield value setting device is:
The intermediate-freuqncy signal of base station amplification system is input to digital signal processing module and processes, and obtains the power of broadcast singal.Simultaneously, the power of broadcast singal is sent in MCU chip, MCU chip is monitored the power of broadcast channel, and carries out computation of table lookup according to the performance number of preset performance number and the broadcast singal that gets and obtain current gain setting value and gain control chip is set.
In the present embodiment, with reference to figure 2, digital signal processing module comprises Logical processing unit and the A/D(Analog/Digital being connected with Logical processing unit respectively, analog signal/digital signal) transducer, digital signal processing unit and D/A(Digital/Analog, digital signal/analog signal) transducer, Logical processing unit is connected with described MCU chip.Its operation principle is: complete the processing of the required data of digital signal processing unit in Logical processing unit inside, and be sent to data processing unit carry out Data Analysis obtain broadcast channel.Specifically comprise two processes: the first step, Logical processing unit is obtained and the required Data Concurrent of frequency is set is delivered to data processing unit processing and obtain broadcast channel; Second step, data processing unit detects after broadcast channel, is back to Logical processing unit and carries out power calculation acquisition broadcast channel power after its frequency is reset, and sends the broadcast channel power of gained to MCU chip.
Wherein, Logical processing unit comprises FPGA(Field-Programmable Gate Array, field programmable gate array) chip or function module circuit.This Logical processing unit can be by realization that fpga chip is programmed, and the function module circuit that also can be combined into by multiple hardware electronic circuits is realized.
Wherein, with reference to figure 3, provide a kind of execution mode of above-mentioned functions modular circuit.Function module circuit comprises signal processor and the first digital down converter being connected with signal processor respectively and the second digital down converter, the first digital down converter is connected with respectively power calculator and the second digital down converter, power calculator is connected with MCU chip, and the first digital down converter is connected with digital signal processing unit respectively with the second digital down converter.The second low-converter obtains signal frequency point, is then sent to digital signal processing unit.The first low-converter obtains the data of broadcast channel after treatment from digital signal processing unit, is sent to power calculator and obtains broadcast channel power, finally sends MCU chip to.
In the present embodiment, digital signal processing unit can adopt DSP(Digital Signal Processor, digital signal processor) chip or fpga chip.Dsp chip is efficient data processing chip, is usually used in data-signal processing procedure.Similarly, fpga chip can be realized corresponding function by programming, does not repeat them here.
Above-mentioned yield value setting device, utilize data-signal processing module to process downlink radio-frequency signal, obtain the power of broadcast channel and be sent to MCU chip, MUC chip monitors and adjusts the setting of gain control chip to the power of broadcast singal, realizes the function of the Lookup protocol of yield value.Not only improve the accuracy that yield value arranges, and improved Installation and Debugging personnel's operating efficiency.
Then the GSM base station amplification system that comprises above-mentioned yield value setting device is described:
With reference to figure 4, a kind of GSM base station amplification system, comprise MCU chip, low noise amplifier (Low Noise Amplifier, be abbreviated as LNA) with the first duplexer being connected successively, gain control chip, radio frequency down-conversion device, digital signal processing module, radio-frequency-up-converter, power amplifier, the second duplexer, the input of MCU chip connects digital signal processing module, and the output of MCU chip connects gain control chip; Low noise amplifier is connected between first duplexer and the second duplexer, and first duplexer is connected with the FPDP of base station, and the second duplexer is connected with the antenna of base station.
The operation principle of this GSM base station amplification system is:
GSM signal for descending: obtaining after the signal of base station, first by first duplexer, the GSM signal of up-downgoing is being isolated to selection.Descending radiofrequency signal is introduced into gain control chip and carries out power adjustment, then enters radio frequency down-conversion device and obtains intermediate-freuqncy signal.Intermediate-freuqncy signal enters yield value setting device and carries out the adjustment of power and frequency, and intermediate-freuqncy signal after being adjusted.Intermediate-freuqncy signal after adjustment is recovered original frequency by upconverter, then enters amplifier and carries out signal amplification, finally enters the second duplexer and isolates the antenna of selecting to send to base station.
GSM signal for up: the antenna reception of base station is after upward signal, the second duplexer selects to be sent to low noise amplifier by the upward signal isolation of receiving, is isolated and is selected to be sent in base station by first duplexer through low noise amplifier upward signal after treatment.
The GSM base station amplification system of the present embodiment, its digital signal processing module and MCU have formed previously described yield value setting device.It should be noted that, its operation principle is consistent with yield value setting device above, therefore repeat no more.Be below some concrete modes of implementing of digital signal processing module:
Digital signal processing module comprises Logical processing unit and the A/D converter, digital signal processing unit and the D/A converter that are connected with Logical processing unit respectively, and described Logical processing unit is connected with described MCU chip.
Logical processing unit comprises function module circuit.This function module circuit can specifically comprise: signal processor, power calculator, the first digital down converter and the second digital down converter that are connected with signal processor respectively, described the first digital down converter connects respectively power calculator and the second digital down converter, described power calculator is connected with described MCU chip, and described the first digital down converter is connected with digital signal processing unit respectively with the second digital down converter.
Digital signal processing unit can be dsp chip or fpga chip.
Said GSM base station amplification system, the yield value setting device that has utilized MCU chip and digital signal processing module to form arranges descending gain, realize the function of yield value Lookup protocol, not only improved the accuracy that yield value arranges, and improved Installation and Debugging personnel's operating efficiency.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a yield value setting device, it is characterized in that, comprise digital signal processing module and MCU chip, described digital signal processing module is connected between the radio frequency down-conversion device and radio-frequency-up-converter of base station amplification system, and described MCU chip is connected between digital signal processing module and the gain control chip of base station amplification system.
2. yield value setting device according to claim 1, it is characterized in that, described digital signal processing module comprises Logical processing unit and the A/D converter, digital signal processing unit and the D/A converter that are connected with Logical processing unit respectively, and described Logical processing unit is connected with described MCU chip.
3. yield value setting device according to claim 2, is characterized in that, described Logical processing unit comprises function module circuit.
4. yield value setting device according to claim 3, it is characterized in that, described function module circuit comprises: signal processor, power calculator, the first digital down converter and the second digital down converter that are connected with signal processor respectively, described the first digital down converter connects respectively power calculator and the second digital down converter, described power calculator is connected with described MCU chip, and described the first digital down converter is connected with digital signal processing unit respectively with the second digital down converter.
5. yield value setting device according to claim 2, is characterized in that, described digital signal processing unit comprises dsp chip or fpga chip.
6. a GSM base station amplification system, it is characterized in that, comprise MCU chip, low noise amplifier and the first duplexer being connected successively, gain control chip, radio frequency down-conversion device, digital signal processing module, radio-frequency-up-converter, power amplifier, the second duplexer, the input of described MCU chip connects digital signal processing module, and the output of described MCU chip connects gain control chip; Low noise amplifier is connected between first duplexer and the second duplexer, and described first duplexer is connected with the FPDP of base station, and described the second duplexer is connected with the antenna of base station.
7. GSM according to claim 6 base station amplification system, it is characterized in that, described digital signal processing module comprises Logical processing unit and the A/D converter, digital signal processing unit and the D/A converter that are connected with Logical processing unit respectively, and described Logical processing unit is connected with described MCU chip.
8. GSM according to claim 7 base station amplification system, is characterized in that, described Logical processing unit comprises function module circuit.
9. GSM according to claim 8 base station amplification system, it is characterized in that, described function module circuit comprises: signal processor, power calculator, the first digital down converter and the second digital down converter that are connected with signal processor respectively, described the first digital down converter connects respectively power calculator and the second digital down converter, described power calculator is connected with described MCU chip, and described the first digital down converter is connected with digital signal processing unit respectively with the second digital down converter.
10. GSM according to claim 7 base station amplification system, is characterized in that, described digital signal processing unit comprises dsp chip or fpga chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016484.4U CN203775418U (en) | 2014-01-10 | 2014-01-10 | Gain value setting device and GSM (Global System for Mobile Communication) base station amplification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420016484.4U CN203775418U (en) | 2014-01-10 | 2014-01-10 | Gain value setting device and GSM (Global System for Mobile Communication) base station amplification system |
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| CN203775418U true CN203775418U (en) | 2014-08-13 |
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| CN201420016484.4U Expired - Fee Related CN203775418U (en) | 2014-01-10 | 2014-01-10 | Gain value setting device and GSM (Global System for Mobile Communication) base station amplification system |
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Address after: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 No. 10 Shenzhou Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 |