CN205681417U - The direct amplification machine equipment of trunking communication - Google Patents
The direct amplification machine equipment of trunking communication Download PDFInfo
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- CN205681417U CN205681417U CN201620620218.1U CN201620620218U CN205681417U CN 205681417 U CN205681417 U CN 205681417U CN 201620620218 U CN201620620218 U CN 201620620218U CN 205681417 U CN205681417 U CN 205681417U
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Abstract
A kind of direct amplification machine equipment of trunking communication, including near-end machine and remote termination；Wherein said near-end machine is made up of the radio frequency interface unit connecting, near-end light Transmit-Receive Unit, optical branching unit, near-end power subsystem and near-end monitoring unit；Described remote termination is made up of far-end light Transmit-Receive Unit, power amplifier unit, duplex unit, far end supply unit and the remote monitoring unit connecting.The direct amplification machine equipment of the utility model trunking communication may be implemented in the measurement of two-way optical link decay and the automatic switchover of optical link, light switches over when receiving more than power difference 1dB again, the branch of two-way power amplifier inputs and close the functions such as road output and descending intermodulation product index≤60dBc requirement, it is greatly improved stable equipment operation by Redundancy Design simultaneously, be the optimal selection scheme substituting existing equipment.
Description
Technical field
The utility model relates to electricity field, particularly relates to the communication technology, and the extension particularly to Digital Clustering signal is covered
Lid technology, the direct amplification machine equipment of specifically a kind of trunking communication.
Background technology
Repeater is a kind of relay power multiplying arrangement, plays the amplification of base station radio-frequency signal in trunking communication,
Extend base station range, dead zone-eliminating and weak district, compared with base station repeater have investment little, manage easy for installation, save
The advantages such as investment, are one of the important means of the communication network development and optimization.Current digital clustering communication system is expensive, dimension
Protect and customize that difficulty is big, the cycle is long.
Utility model content
The purpose of this utility model is to provide the direct amplification machine equipment of the trunking communication of a kind of energy stable operation.
For solving above-mentioned technical problem, the direct amplification machine equipment of the utility model trunking communication, including near-end machine and remote termination；
Wherein said near-end machine is by the radio frequency interface unit connecting, near-end light Transmit-Receive Unit, optical branching unit, near-end power subsystem and near
End monitoring unit composition；Described remote termination is by the far-end light Transmit-Receive Unit connecting, power amplifier unit, duplex unit, far end supply list
Unit and remote monitoring unit composition.
Described radio frequency interface unit includes radio frequency variable attenuation coupler, near-end shunt and the near-end combiner connecting；
Wherein said near-end combiner is connected with described radio frequency variable attenuation coupler by wave filter.
Described near-end light Transmit-Receive Unit includes the first optical module and the second optical module；Wherein said first optical module and described
Second optical module is connected with described near-end shunt and described near-end combiner respectively.
Described first optical module includes the first optical transmitter, the first optical receiver and the first digital frequency modulator；Wherein
Described first optical transmitter is connected with described near-end shunt；Described first optical receiver is connected with described near-end combiner；Institute
State the first digital frequency modulator to be connected with described near-end monitoring unit.
Described second optical module includes the second optical transmitter, the second optical receiver and the second digital frequency modulator；Wherein
Described second optical transmitter is connected with described near-end shunt；Described second optical receiver is connected with described near-end combiner；Institute
State the second digital frequency modulator to be connected with described near-end monitoring unit.
Described optical branching unit includes the one or two optical branching device and the two or two optical branching device；Wherein said one or two smooth branch
Device is connected with described first optical module；Described two or two optical branching device is connected with described second optical module.
Described far-end light Transmit-Receive Unit includes far-end optical module, far-end shunt, low-noise amplifier and drive amplification mould
Block；Wherein said far-end shunt and described low-noise amplifier are respectively by described drive amplification module and described far-end optical mode
Block connects；Described low-noise amplifier and described far-end optical module are connected with described remote monitoring unit respectively.
Described far-end optical module includes far-end optical transmitter, far-end optical receiver and remote digital frequency modulator；Wherein
Described remote digital frequency modulator is connected with described remote monitoring unit.
Described power amplifier unit includes the first high power amplifier and the second high power amplifier；Wherein said first high power
One road input of amplifier and described second high power amplifier is connected with described far-end shunt respectively；Described first Gao Gong
One road input of rate amplifier and described second high power amplifier is connected with described remote monitoring unit respectively.
Described duplex unit includes far-end combiner and duplexer；Wherein said first high power amplifier and described second
The output of high power amplifier is connected with described far-end combiner respectively.
The direct amplification machine equipment of the utility model trunking communication may be implemented in measurement and the optical link of two-way optical link decay
Automatic switchover, light switch over again when receiving more than power difference 1dB, the branch input of two-way power amplifier and close road output and descending
The functions such as intermodulation product index≤-60dBc requirement, are greatly improved stable equipment operation by Redundancy Design simultaneously, are to replace
Optimal selection scheme for existing equipment.
Brief description
Fig. 1 is the direct amplification machine equipment near-end machine theory diagram of trunking communication of the present utility model；
Fig. 2 is the direct amplification machine device far end machine theory diagram of trunking communication of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings the direct amplification machine equipment of the utility model trunking communication is described in further detail.
As shown in Figure 1 and Figure 2, the direct amplification machine equipment of the utility model trunking communication, including near-end machine and remote termination；Wherein
Near-end machine is single by the monitoring of the radio frequency interface unit connecting, near-end light Transmit-Receive Unit, optical branching unit, near-end power subsystem and near-end
Unit 8 composition；Remote termination is by far-end light Transmit-Receive Unit, power amplifier unit, duplex unit, far end supply unit and the remote monitoring connecting
Unit 18 forms.
Radio frequency interface unit includes radio frequency variable attenuation coupler the 1st, near-end shunt 2 and the near-end combiner 3 connecting；Its
Middle near-end combiner 3 is connected with radio frequency variable attenuation coupler 1 by wave filter 4.
Near-end light Transmit-Receive Unit includes the first optical module and the second optical module；Wherein the first optical module and the second optical module divide
It is not connected with near-end shunt 2 and near-end combiner 3.
First optical module includes the first optical transmitter the 5th, the first optical receiver 6 and the first digital frequency modulator 7；Wherein
One optical transmitter 5 is connected with near-end shunt 2；First optical receiver 6 is connected with near-end combiner 3；First digital frequency modulation
Device 7 is connected with near-end monitoring unit 8.
Second optical module includes the second optical transmitter the 9th, the second optical receiver 10 and the second digital frequency modulator 11；Wherein
Second optical transmitter 9 is connected with near-end shunt 2；Second optical receiver 10 is connected with near-end combiner 3；Second numerical frequency is adjusted
Device 11 processed is connected with near-end monitoring unit 8.
Optical branching unit includes the one or two optical branching device the 12 and the 2nd 2 optical branching device 13；Wherein the one or two optical branching device 12
It is connected with the first optical module；Two or two optical branching device 13 is connected with the second optical module.
Far-end light Transmit-Receive Unit includes far-end optical module, far-end shunt the 15th, low-noise amplifier 16 and drive amplification mould
Block 17；Wherein far-end shunt 15 and low-noise amplifier 16 are connected with far-end optical module by drive amplification module 17 respectively；
Low-noise amplifier 16 and far-end optical module are connected with remote monitoring unit 18 respectively.
Far-end optical module includes far-end optical transmitter the 19th, far-end optical receiver 20 and remote digital frequency modulator 21；Its
Middle remote digital frequency modulator 21 is connected with remote monitoring unit 18.
Power amplifier unit includes the first high power amplifier 22 and the second high power amplifier 23；Wherein the first high power amplifies
Device 22 and the second high power amplifier 23 are connected with far-end shunt 15 respectively；First high power amplifier 22 and the second high power
Amplifier 23 is connected with remote monitoring unit 18 respectively.
Duplex unit includes far-end combiner 24 and duplexer 25；Wherein the first high power amplifier 22 and the second high power
Amplifier 23 is connected with far-end combiner 24 respectively.
Near-end power subsystem 14(is made up of two pieces of near-end power modules 14) and far end supply unit 26(by two blocks of far-end electricity
Source module 26 forms) it is connected with near-end monitoring unit 8 and remote monitoring unit 18 respectively.
The direct amplification machine equipment of trunking communication of the present utility model realizes at the measurement of two-way optical link decay and optical link
Automatic switchover, the optical link automatic switching function for optical module receives power by detecting the light of two-way optical link, and automatically
Switching light is received power compare great mono-tunnel and is received and dispatched, and for avoiding frequently to switch phenomenon, the acquiescence that powers on first selects the first optical link
Transmitting-receiving, switches over when the first optical link being detected and the second optical link light receives more than power difference 1dB again.Realize two-way electricity
When occurring when source powers simultaneously that the detection of the back flow protection after a road fault and power failure is powered for two-way power supply simultaneously
Back flow protection function after one tunnel fault occurs, uses heavy-duty diode to protect, and simultaneously by monitoring unit for
The real-time monitoring of power supply output situation, it is achieved the detection to the situation such as power failure and power supply power-fail.
Realize the branch input of two-way power amplifier and close road output.For the branch input of two-way power amplifier, use homemade micro-
Two power splitters are carried to realize；Output part in road is closed for two-way power amplifier, uses high-power same frequency combiner to realize.
Realize requiring with regard to descending intermodulation product index≤-60dBc.Refer to regard to descending intermodulation product in technical specification
Mark, uses linear rollback power amplifier at present, can realize≤-45dBc, as follow-up needs provides descending intermodulation product≤-60dBc to set
Standby, use pre-distortion power amplifier technology to realize, by adding a characteristic lucky with the mission nonlinear distortion including power amplifier
Contrary system, compensates mutually, is amplified gain and the compensation of phase place change in the range of whole changed power, thus
Realize higher intermodulation component distortion suppression performance, promote the suppression for intermodulation product of direct amplification machine.
Near-end, power subsystem have employed dual power supply integrated mode, and its implementation is that redundancy backup is in parallel.Being specially will
Identical module output can make fan-out capability strengthen by parallel connection after diode, to improve the reliability of power-supply system.Principle
If upper coordinate corresponding output alarm circuit, being placed on module on demountable bus, so, the module breaking down is permissible
Change in time.Optical module have employed double optical module backup mode, and the optical link automatic switching function for optical module passes through detection
The light of two-way optical link receives power, and the light that automatically switches is received power compare great mono-tunnel and received and dispatched, for avoiding occurring frequently to switch now
As, the acquiescence that powers on first selects optical link 1 to receive and dispatch, when detect the first optical link and the second optical link light receive power difference 1dB with
Switched over again when upper.
Far-end, power subsystem have employed dual power supply integrated mode, and its implementation is that redundancy backup is in parallel.Being specially will
Identical module output can make fan-out capability strengthen by parallel connection after diode, to improve the reliability of power-supply system.Principle
If upper coordinate corresponding output alarm circuit, being placed on module on demountable bus, so, the module breaking down is permissible
Change in time.The backup functionality implementation of descending power amplifier is for being realized by front and back stages combiner device electric bridge.Specially will be through
The downlink radio-frequency signal being exported by optical module after crossing opto-electronic conversion divides through low-power micro-strip two work(and is converted into two-way radiofrequency signal
After respectively enter two descending power amplifiers, after being amplified by power amplifier, then by two-way power amplifier output by connect wirerope length adjust
The high-power same frequency combiner that joint makes phase place simultaneously enter power amplifier rear class after reaching unanimously closes road output, thus realizes when one
Power amplifier still ensured that, after losing efficacy, the function that downstream signal normally exports.
Below the preferred embodiment created the utility model is illustrated, but the utility model is created not
Being limited to embodiment, those of ordinary skill in the art also can make all on the premise of without prejudice to the utility model creative spirit
Equivalent modification or replacement, these equivalent modification or replacement are all contained in the application claim limited range.
Claims (10)
1. the direct amplification machine equipment of a trunking communication, it is characterised in that include near-end machine and remote termination；Wherein said near-end machine by
Radio frequency interface unit, near-end light Transmit-Receive Unit, optical branching unit, near-end power subsystem and the near-end monitoring unit composition connecting；
Described remote termination is by far-end light Transmit-Receive Unit, power amplifier unit, duplex unit, far end supply unit and the remote monitoring unit connecting
Composition.
2. the direct amplification machine equipment of trunking communication according to claim 1, it is characterised in that described radio frequency interface unit includes
Radio frequency variable attenuation coupler, near-end shunt and the near-end combiner connecting；Wherein
Described near-end combiner is connected with described radio frequency variable attenuation coupler by wave filter.
3. the direct amplification machine equipment of trunking communication according to claim 2, it is characterised in that described near-end light Transmit-Receive Unit bag
Include the first optical module and the second optical module；Wherein
Described first optical module and described second optical module are connected with described near-end shunt and described near-end combiner respectively.
4. the direct amplification machine equipment of trunking communication according to claim 3, it is characterised in that described first optical module includes
One optical transmitter, the first optical receiver and the first digital frequency modulator；Wherein
Described first optical transmitter is connected with described near-end shunt；Described first optical receiver is with described near-end combiner even
Connect；Described first digital frequency modulator is connected with described near-end monitoring unit.
5. the direct amplification machine equipment of trunking communication according to claim 3, it is characterised in that described second optical module includes
Two optical transmitters, the second optical receiver and the second digital frequency modulator；Wherein
Described second optical transmitter is connected with described near-end shunt；Described second optical receiver is with described near-end combiner even
Connect；Described second digital frequency modulator is connected with described near-end monitoring unit.
6. the direct amplification machine equipment of trunking communication according to claim 3, it is characterised in that described optical branching unit includes
One or two optical branching devices and the two or two optical branching device；Wherein
Described one or two optical branching device is connected with described first optical module；Described two or two optical branching device and described second optical module
Connect.
7. the direct amplification machine equipment of trunking communication according to claim 1, it is characterised in that described far-end light Transmit-Receive Unit bag
Include far-end optical module, far-end shunt, low-noise amplifier and drive amplification module；Wherein
Described far-end shunt and described low-noise amplifier are respectively by described drive amplification module and described far-end optical module
Connect；Described low-noise amplifier and described far-end optical module are connected with described remote monitoring unit respectively.
8. the direct amplification machine equipment of trunking communication according to claim 7, it is characterised in that described far-end optical module includes far
End optical transmitter, far-end optical receiver and remote digital frequency modulator；Wherein
Described remote digital frequency modulator is connected with described remote monitoring unit.
9. the direct amplification machine equipment of trunking communication according to claim 8, it is characterised in that described power amplifier unit includes first
High power amplifier and the second high power amplifier；Wherein
One road input of described first high power amplifier and described second high power amplifier respectively with described far-end branch
Device connects；One road input of described first high power amplifier and described second high power amplifier is supervised with described far-end respectively
Control unit connects.
10. the direct amplification machine equipment of trunking communication according to claim 9, it is characterised in that described duplex unit includes far
End combiner and duplexer；Wherein,
The output of described first high power amplifier and described second high power amplifier is respectively with described far-end combiner even
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620620218.1U CN205681417U (en) | 2016-06-22 | 2016-06-22 | The direct amplification machine equipment of trunking communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620620218.1U CN205681417U (en) | 2016-06-22 | 2016-06-22 | The direct amplification machine equipment of trunking communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205681417U true CN205681417U (en) | 2016-11-09 |
Family
ID=57430496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620620218.1U Active CN205681417U (en) | 2016-06-22 | 2016-06-22 | The direct amplification machine equipment of trunking communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205681417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133636A1 (en) * | 2017-01-19 | 2018-07-26 | 京信通信系统（中国）有限公司 | Redundant backup near-end machine, remote-end machine and system for digital optical fiber repeater |
-
2016
- 2016-06-22 CN CN201620620218.1U patent/CN205681417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133636A1 (en) * | 2017-01-19 | 2018-07-26 | 京信通信系统（中国）有限公司 | Redundant backup near-end machine, remote-end machine and system for digital optical fiber repeater |
| US10790904B2 (en) | 2017-01-19 | 2020-09-29 | Comba Telecom Systems (China) Limited | Redundant backup near-end machine, far-end machine and system thereof for digital optical fiber repeater |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |