CN201550113U - Digital microwave frequency shift repeater station - Google Patents
Digital microwave frequency shift repeater station Download PDFInfo
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- CN201550113U CN201550113U CN2009201814514U CN200920181451U CN201550113U CN 201550113 U CN201550113 U CN 201550113U CN 2009201814514 U CN2009201814514 U CN 2009201814514U CN 200920181451 U CN200920181451 U CN 200920181451U CN 201550113 U CN201550113 U CN 201550113U
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Abstract
The utility model discloses a digital microwave frequency shift repeater station which comprises a near-end device, a remote device, a microwave antenna arranged on the near-end device, and a microwave antenna and a retransmission antenna which are arranged on the remote device, the near-end device is composed of a duplexer, a microwave outdoor unit, and a down link composed of a low-noise amplifier, a lower transducer and a digital microwave processing unit and an up link composed of a digital microwave processing unit, an upper transducer and a power amplifier which are arranged between the duplexer and the microwave outdoor unit, the remote device comprises a microwave outdoor unit, a duplexer, and a down link composed of a digital microwave processing unit, an upper transducer and a power amplifier and an up link composed of a low-noise amplifier, a lower transducer and a digital microwave processing unit which are arranged between the duplexer and the microwave outdoor unit, the microwave antenna is connected with the microwave outdoor unit, and the retransmission antenna is connected with the duplexer of the remote device. The digital microwave frequency shift repeater station utilizes a public microwave frequency band, and saves the cost for purchasing a new frequency band.
Description
Technical field
The utility model relates to the field, repeater, relates to a kind of digital microwave frequency-shift repeater in particular.
Background technology
In mobile communications network, cell mobile communication systems is usually because of the restriction of landform and transmission conditions, blind area and shade that some base station signals do not cover appear inevitably, generally be to adopt intra-frequency repeater that directed radiation is carried out with dead zone-eliminating in the zone that needs cover, can also extend the service range of base station simultaneously.But there is following problem in conventional intra-frequency repeater:
One, is prone to co-channel interference, the phenomenon of ubiquity call drop and noise;
Two, the higher intra-frequency repeater of gain, the insulated degree requirement between donor antenna and the retransmitting antenna is very high, during Installation and Debugging on the spot, is prone to self-excitation phenomena;
Three, retransmitting antenna can only adopt directed radiation, and the site must be located at the edge of the area of coverage, and this not only brings difficulty to addressing, and coverage is also limited to.
Based on the problems referred to above, prior art generally is to solve by frequency-shift repeater.Frequency-shift repeater (Frequency Shift Repeater/FSR) is that the operating frequency with base station/mobile phone is converted to signal (Signal) the relay transferring equipment that other frequency is transmitted, and can be used for remedying signal in the mobile communications network (Signal) and covers not enough zone.
Existing frequency-shift repeater generally is divided into near-end machine (Donor Unit) 100 and remote termination (Remote Unit) 200 two parts.Be respectively the structural representation of frequency-shift repeater near-end machine 100 and remote termination 200 in the prior art as shown in Figures 1 and 2, near-end machine 100 by donor antenna 110 from picking up base station signal in the air, through duplexer 10, behind the low noise amplifier 11, by upconverter 12 its operating frequency is risen to microwave frequency band, through filter 13 filtering and after with power amplifier 14 amplification, through duplexer 15, microwave antenna 120 passes to remote termination 200, remote termination 200 receives after the microwave signal through behind the amplifier 21 of making an uproar in a low voice, operating frequency by low-converter 22 with signal resets into the initialization frequency, after filter 23 and power amplifier 24 processing, and via duplexer 25, retransmitting antenna 220 sends to each mobile subscriber terminal in the overlay area.
Simultaneously, the mobile subscriber's that remote termination 200 also receives retransmitting antenna 220 signal is amplified to microwave frequency band with frequency behind low noise amplifier 26 and through upconverter 27, after filter 28 and power amplifier 29 amplifications, be transferred to near-end machine 100 through duplexer 20, microwave antenna 210, after this near-end machine 100 receives microwave signal, be initial channel by low noise amplifier 16 and low-converter 17 with signal restoring successively, and after filter 18 and power amplifier 19 amplifications, be transferred to the base station by donor antenna 110.
But this traditional frequency-shift repeater need take a lot of operation frequencies, and along with user's increase, frequency resource is fewer and feweri, can be just fewer and feweri for the link frequency resource of shift frequency.The application of new like this frequency often needs to expend great amount of cost, and then causes the less economical of whole frequency-shift repeater.
In view of this, the inventor need apply for new frequency and bring the defective of cost rising to further investigate have this case to produce then at existing frequency-shift repeater.
The utility model content
The purpose of this utility model is to provide a kind of digital microwave frequency-shift repeater, to solve frequency-shift repeater in the prior art owing to need to apply for that new frequency cause the high problem of cost.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of digital microwave frequency-shift repeater, comprise near-end machine, remote termination and be arranged on the near-end machine microwave antenna be arranged on microwave antenna and retransmitting antenna on the remote termination, wherein, this near-end machine comprise duplexer, microwave outdoor unit and be arranged on duplexer and microwave outdoor unit between the down link that constitutes by low noise amplifier, low-converter, digital microwave processing unit respectively and the up link that constitutes by digital microwave processing unit, upconverter, power amplifier; This remote termination comprise microwave outdoor unit, duplexer and be arranged on duplexer and microwave outdoor unit between the down link that constitutes by digital microwave processing unit, upconverter, power amplifier respectively and the up link that constitutes by low noise amplifier, low-converter, digital microwave processing unit; This each microwave antenna links to each other with microwave outdoor unit separately, and this retransmitting antenna links to each other with the remote termination duplexer.
Further, this digital microwave processing unit comprises ADC module, baseband processor and the DAC module that links to each other successively, after this ADC module received signal, is digital signal with analog signal conversion and carries out again frame for baseband processor and handle or separate the frame reduction, and the digital signal after will being handled by the DAC module is converted to analog signal and exports.
Further, this baseband processor comprises numerically-controlled oscillator, frequency mixer, cascade integrator comb filter and processor, these processor two ends all connect a cascade integrator comb filter, this each cascade integrator comb filter also all links to each other with frequency mixer, this frequency mixer also links to each other with the end that inputs or outputs of numerically-controlled oscillator and baseband processor, this frequency mixer receives the signal of ADC module and numerically-controlled oscillator and carries out once more down-conversion and be converted to base band, this cascade integrator comb filter receiving baseband signal and filtering extraction and form data than low rate, this processor receives these data and separates base band, framing is handled or is separated the frame reduction and handles, data after this another cascade integrator comb filter receiving processor is handled and filtering extraction and restore data speed, and carry out Digital Up Convert by frequency mixer and export to the DAC module.
Further, this baseband processor also comprises clock module, stored program configurator module of clock synchronization in the whole communication process of control and monitors the communication control program module of communicating by letter between each module and the system.
Further, this near-end machine duplexer communicates by donor antenna or coupler and base station.
After adopting said structure, the utility model carries out digital microwave by the digital microwave processing unit to be handled, and make the communication frequency between near-end machine and the remote termination be positioned at public microwave frequency band, so when operation, just do not need new frequency resource or take original operation channel, buy the spent cost of new frequency thereby saved greatly.
Description of drawings
Fig. 1 is the structural representation of near-end machine in the frequency-shift repeater of the prior art;
Fig. 2 is the structural representation of remote termination in the frequency-shift repeater of the prior art;
The structural representation of near-end machine in the digital microwave frequency-shift repeater that Fig. 3 relates to for the utility model;
The structural representation of remote termination in the digital microwave frequency-shift repeater that Fig. 4 relates to for the utility model;
Fig. 5 is the structural representation the when concrete structure of digital microwave processing unit is connected in the near-end machine in the utility model;
Fig. 6 is the structural representation the when concrete structure of digital microwave processing unit is connected in the remote termination in the utility model;
Fig. 7 is the structural representation of a kind of execution mode of the utility model baseband processor.
Among the figure:
Near-end machine 100 donor antennas 110
Low noise amplifier 11 upconverter 12
Filter 13 power amplifiers 14
Duplexer 15 low noise amplifiers 16
Low-converter 17 filters 18
Low-converter 22 filters 23
Filter 28 power amplifiers 29
Near-end machine 300 donor antennas 310
Digital microwave processing unit 33 ADC modules 331
Microwave outdoor unit 34 digital microwave processing units 35
Microwave outdoor unit 40 digital microwave processing units 41
Digital microwave processing unit 47 ADC modules 471
Numerically-controlled oscillator 334 frequency mixers 335
Embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
As shown in Figure 3 and Figure 4, the near-end machine 300 of a kind of digital microwave frequency-shift repeater that relates to for the utility model shown in it and the structural representation of remote termination 400, comprise near-end machine 300 and remote termination 400, this near-end machine 300 is by donor antenna 310 or coupler and base station communication, after this near-end machine 300 receives base station signal, and this signal is down-converted to public microwave frequency band, and send by 320,400 of this remote terminations pass through microwave antenna 410 received signals, carry out upconversion process, and send to the terminal use by retransmitting antenna 420.
As shown in Figure 3, this near-end machine 300 comprises duplexer 30, microwave outdoor unit 34, down link and up link, this down link and up link all are arranged between duplexer 30 and the microwave outdoor unit 34, this down link comprises low noise amplifier 31, low-converter 32 and the digital microwave processing unit 33 that links to each other successively, and this up link then comprises digital microwave processing unit 35, upconverter 36 and the power amplifier 37 that links to each other successively.
As shown in Figure 4, this remote termination 400 comprises microwave outdoor unit 40, duplexer 44, down link and up link, this down link and up link all are arranged between duplexer 44 and the microwave outdoor unit 40, this down link comprises digital microwave processing unit 41, upconverter 42 and the power amplifier 43 that links to each other successively, and this up link then comprises low noise amplifier 45, low-converter 46 and the digital microwave processing unit 47 that links to each other successively.Need to prove that microwave outdoor unit 34,40 wherein is unit commonly used, this area, it can realize the frequency inverted of low noise reception, high-power emission and intermediate-freuqncy signal, and has functions such as gain adjustment, power control.
As a kind of embodiment, this digital microwave processing unit 33,35,41,47 comprise the ADC module 331 that links to each other successively, 351,411,471, baseband processor 332,352,412,472 and DAC module 333,353,413,473, because above-mentioned digital microwave processing unit structure is all identical, so be that example describes all below with digital microwave processing unit 33, after these ADC module 331 received signals, is digital signal with analog signal conversion and carries out again frame for baseband processor 332 and handle or separate the frame reduction, and the digital signal after will being handled by DAC module 333 is converted to analog signal and exports.
Because the course of work of down link and up link is similar, below just be that example is described in detail concrete scheme of the present utility model with the down link:
As shown in Figure 5 and Figure 6, this donor antenna 310 receives from signal of base station, and via sending low-converter 32 to after duplexer 30 filtering and low noise amplifier 31 amplifications, this low-converter 32 down-converts the signals to intermediate frequency, and carry out the dynamic digitlization of high speed and be transferred to baseband processor 332 by ADC module 331, signal after 332 pairs of digitlizations of this baseband processor carries out again the frame reorganization, and carry out digital-to-analogue conversion by DAC module 333 and be converted to analog if signal output, finally the microwave outdoor unit 34 by near-end machine 300 upconverts to microwave, and by microwave antenna 320 signal is sent to remote termination 400; This remote termination 400 receives the microwave signal of near-end machine 300 by microwave antenna 410, and be down-converted to intermediate frequency by microwave outdoor unit 40, and undertaken by ADC module 411 successively that analog-to-digital conversion, baseband processor 412 are carried out Base-Band Processing (this Base-Band Processing is for separating the frame reduction) herein, ADC module 413 is carried out digital-to-analogue conversion, and then obtain analog signal, this analog signal up-converts to radiofrequency signal by upconverter 42, finally amplify by power amplifier 43 and duplexer 44 filtering after launch by retransmitting antenna 420 and to supply the portable terminal reception.
Like this, the utility model carries out digital microwave by digital microwave processing unit 33 to be handled, and make the communication frequency between near-end machine 300 and the remote termination 400 be positioned at public microwave frequency band, so when operation, just do not need new frequency resource or take original operation channel, buy the spent cost of new frequency thereby saved greatly.
As a kind of execution mode, specifically as shown in Figure 7, this baseband processor 332 comprises numerically-controlled oscillator 334, frequency mixer 335, cascade integrator comb filter 336 and processor, these processor 337 two ends all connect a cascade integrator comb filter 336, this each cascade integrator comb filter 336 also all links to each other with frequency mixer 335, this frequency mixer 335 also links to each other with the end that inputs or outputs of numerically-controlled oscillator 334 and baseband processor, this frequency mixer 335 receives the signal of ADC modules and numerically-controlled oscillator 334 and carries out once more down-conversion and be converted to base band, these cascade integrator comb filter 336 receiving baseband signals and filtering extraction and form data than low rate, this processor receives these data and separates base band, framing is handled or is separated the frame reduction and handles, data after this another cascade integrator comb filter 336 receiving processors are handled and filtering extraction and restore data speed, and carry out Digital Up Convert by frequency mixer 335 and export to the DAC module.In the specific implementation, this numerically-controlled oscillator 334 can be set to a plurality of, and this frequency mixer 335 also correspondingly is set to a plurality of, and then forms a plurality of passages.
In order to realize concrete control, this baseband processor also comprises clock module 338, configurator module 339 and communication control module 330, and this clock module 338 provides the clock source for each program module, controls the clock synchronization of whole communication process; This configurator module 339 is used for the program of memory module, is written into automatically when powering on and carries out initial configuration; This communication control module 300 is used for module and communicating by letter that the master of system monitors, and receives the instruction of main monitoring, returns result, and this system can select computer for use.
The foregoing description and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (5)
1. digital microwave frequency-shift repeater, comprise near-end machine, remote termination and be arranged on the near-end machine microwave antenna be arranged on microwave antenna and retransmitting antenna on the remote termination, it is characterized in that, this near-end machine comprise duplexer, microwave outdoor unit and be arranged on duplexer and microwave outdoor unit between the down link that constitutes by low noise amplifier, low-converter, digital microwave processing unit respectively and the up link that constitutes by digital microwave processing unit, upconverter, power amplifier; This remote termination comprise microwave outdoor unit, duplexer and be arranged on duplexer and microwave outdoor unit between the down link that constitutes by digital microwave processing unit, upconverter, power amplifier respectively and the up link that constitutes by low noise amplifier, low-converter, digital microwave processing unit; This each microwave antenna links to each other with microwave outdoor unit separately, and this retransmitting antenna links to each other with the remote termination duplexer.
2. a kind of digital microwave frequency-shift repeater as claimed in claim 1, it is characterized in that, this digital microwave processing unit comprises ADC module, baseband processor and the DAC module that links to each other successively, after this ADC module received signal, is digital signal with analog signal conversion and carries out again frame for baseband processor and handle or separate the frame reduction, and the digital signal after will being handled by the DAC module is converted to analog signal and exports.
3. a kind of digital microwave frequency-shift repeater as claimed in claim 2, it is characterized in that, this baseband processor comprises numerically-controlled oscillator, frequency mixer, cascade integrator comb filter and processor, these processor two ends all connect a cascade integrator comb filter, this each cascade integrator comb filter also all links to each other with frequency mixer, this frequency mixer also links to each other with the end that inputs or outputs of numerically-controlled oscillator and baseband processor, this frequency mixer receives the signal of ADC module and numerically-controlled oscillator and carries out once more down-conversion and be converted to base band, this cascade integrator comb filter receiving baseband signal and filtering extraction and form data than low rate, this processor receives these data and separates base band, framing is handled or is separated the frame reduction and handles, data after this another cascade integrator comb filter receiving processor is handled and filtering extraction and restore data speed, and carry out Digital Up Convert by frequency mixer and export to the DAC module.
4. a kind of digital microwave frequency-shift repeater as claimed in claim 3, it is characterized in that this baseband processor also comprises clock module, stored program configurator module of clock synchronization in the whole communication process of control and monitors the communication control program module of communicating by letter between each module and the system.
5. as each described a kind of digital microwave frequency-shift repeater of claim 1 to 4, it is characterized in that this near-end machine duplexer communicates by donor antenna or coupler and base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201814514U CN201550113U (en) | 2009-11-25 | 2009-11-25 | Digital microwave frequency shift repeater station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201814514U CN201550113U (en) | 2009-11-25 | 2009-11-25 | Digital microwave frequency shift repeater station |
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| Publication Number | Publication Date |
|---|---|
| CN201550113U true CN201550113U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201814514U Expired - Fee Related CN201550113U (en) | 2009-11-25 | 2009-11-25 | Digital microwave frequency shift repeater station |
Country Status (1)
| Country | Link |
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| CN (1) | CN201550113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220687A (en) * | 2013-04-11 | 2013-07-24 | 四川邮科通信技术有限公司 | Multi-standard type category 5 cable home-entry covering system |
| CN104092491A (en) * | 2014-06-23 | 2014-10-08 | 中国人民解放军理工大学 | Optical frequency comb generating device and method of photoelectric oscillator |
| CN105471490A (en) * | 2014-09-05 | 2016-04-06 | 中国移动通信集团公司 | Repeater and signal processing method thereof |
-
2009
- 2009-11-25 CN CN2009201814514U patent/CN201550113U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220687A (en) * | 2013-04-11 | 2013-07-24 | 四川邮科通信技术有限公司 | Multi-standard type category 5 cable home-entry covering system |
| CN104092491A (en) * | 2014-06-23 | 2014-10-08 | 中国人民解放军理工大学 | Optical frequency comb generating device and method of photoelectric oscillator |
| CN104092491B (en) * | 2014-06-23 | 2016-08-31 | 中国人民解放军理工大学 | Optical-electronic oscillator produces the apparatus and method of optical frequency com |
| CN105471490A (en) * | 2014-09-05 | 2016-04-06 | 中国移动通信集团公司 | Repeater and signal processing method thereof |
| CN105471490B (en) * | 2014-09-05 | 2020-05-12 | 中国移动通信集团有限公司 | Repeater and signal processing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111125 |