CN201450507U - One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch - Google Patents
One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch Download PDFInfo
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- CN201450507U CN201450507U CN2009200545154U CN200920054515U CN201450507U CN 201450507 U CN201450507 U CN 201450507U CN 2009200545154 U CN2009200545154 U CN 2009200545154U CN 200920054515 U CN200920054515 U CN 200920054515U CN 201450507 U CN201450507 U CN 201450507U
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Abstract
The utility model relates to a one-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch, which comprises a relay end machine and N remote machines, wherein the relay end machine comprises a relay end duplexer, a relay end downlink radio frequency module, a radio frequency downlink distychus combining module, a radio frequency uplink quartered combining module, a light distychus branching device, a relay end uplink radio frequency module, a relay end light transmitting module and a relay end light receiving module, wherein the relay end duplexer is connected with the relay end downlink radio frequency module and the relay end uplink radio frequency module simultaneously; the relay end downlink radio frequency module is connected with the relay end light transmitting module after being connected with the radio frequency downlink distychus combining module; the relay end light transmitting module is connected with the light distychus branching device; and the relay end uplink radio frequency module is connected with the relay end light receiving module after being connected with the radio frequency uplink quartered combining module. The one-dragged multi-fiber optic repeater solves the defects of shorter transmission distance and optical wavelength interference, and eases the problems of cost, layout, power consumption, weight and the like of the relay end machine of the one-dragged multi-fiber optic repeater of radio frequency branching.
Description
Technical field
The utility model relates to the Mobile communication direct base station technology, and what be specifically related to that a kind of radio frequency deciliter road and light combines along separate routes 1 drags many optical fiber repeaters.
Background technology
Along with the development of mobile communication technology, optical fiber repeater has obtained using widely as extension solution indoor or that the sub-district covers.Optical fiber repeater is the radiofrequency signal that will transmit from the base station, becomes light signal through the electric light conversion, recovers a kind of with the frequency multiplying arrangement that the signal of telecommunication sends again through opto-electronic conversion again after Optical Fiber Transmission, and its essence is exactly a radiofrequency signal power intensifier.
Optical fiber repeater faces and how to drag a plurality of remote terminations to solve the problem that covers with a relaying terminal at present.Traditional 1 drags many optical fiber repeaters to cover schemes as shown in Figure 1, is specially 1 and drags 4 covering schemes, comprises relaying terminal and 4 remote terminations ( remote termination 1,2,3 and 4).Wherein, the relaying terminal comprises duplexer, the up radio-frequency module in relay, relay downlink radio frequency module, four fens mixers of two radio frequencies and 4 optical transceiver modules.Each remote termination includes optical transceiver module, up radio-frequency module, downlink radio frequency module, descending power amplifier module, up low noise amplification module, far-end duplexer and cover antenna.Traditional optical fiber direct amplification stands in machine place, relay and adopts radio frequency to realize along separate routes, but its shortcoming is because radio frequency shunt form is dragged the many groups optical transceiver module that needs respective numbers for a long time one, cause relaying terminal module more, the big and more high shortcoming of power consumption of cost height, layout complexity, weight.
And another kind of one drag many optical fiber repeaters to adopt optical branching units to realize, as shown in Figure 2, is specially 1 and drags 4 schemes, comprises main near-end machine, one fen four optical branching unit and 4 remote terminations ( remote termination 1,2,3 and 4).Though this one drags many optical fiber repeaters to use modules less, its shortcoming is because the loss of optical branching unit is excessive, causes the signal attenuation of transmission many, makes that the transmission range of optical fiber repeater is short, and system's use occasion is limited.Drag under 4 the situation 1, the transmission of system signal has only several kilometers, does not satisfy the requirement of mobile communication to 20 kilometers transmission ranges of optical fiber repeater.Simultaneously, can there be the phase mutual interference between the same light wavelength in up photosynthetic road, influences the equipment performance index.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, what provide that a kind of radio frequency deciliter road and light combines along separate routes 1 drags many optical fiber repeaters, the utility model both solved in light 1 defective that the system transmissions distance is short and optical wavelength is interfered of dragging many optical fiber repeaters along separate routes, relaxed radio frequency problems such as 1 cost that drags the relaying terminal of many optical fiber repeaters, layout, power consumption, weight along separate routes again.
The utility model purpose is achieved through the following technical solutions: what a kind of radio frequency deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, comprise a relaying terminal and N remote termination, described relaying terminal is connected by optical fiber with each remote termination, and wherein N gets 2,3 or 4 usually.
Described relaying terminal comprises the relay duplexer, relay downlink radio frequency module, the descending two deciliters road modules of radio frequency, the up four deciliters road modules of radio frequency, light two splitters, the up radio-frequency module in relay, relay light sends out module and relay light is received module, described relay duplexer is connected with the up radio-frequency module in relay with relay downlink radio frequency module simultaneously, sending out module with relay light after described relay downlink radio frequency module is connected with the descending two deciliters road modules of radio frequency is connected, relay light is sent out module and is connected with light two splitters, receives module with relay light after the up radio-frequency module in described relay is connected with the up four deciliters road modules of radio frequency and is connected.
Preferably, each remote termination includes far-end light and receives module, far-end downlink radio frequency module, descending power amplifier module, far-end duplexer, far-end light and send out module, the up radio-frequency module of far-end, up LNA module and cover antenna, described far-end light is received module and is connected with the far-end duplexer by far-end downlink radio frequency module, descending power amplifier module successively, described far-end light is sent out module and also is connected with the far-end duplexer by the up radio-frequency module of far-end, up LNA module successively, and the far-end duplexer also is connected with cover antenna.
The relay light of above-mentioned relaying terminal is sent out module, light two splitters, relay light, and to receive the concrete quantity of module corresponding with the quantity N of remote termination.
Preferably, the quantity N of remote termination is 4 o'clock, and the quantity that the relay light of relaying terminal is sent out module is 2, and the quantity of light two splitters is 2, and the quantity that relay light is received module is 4.
In addition.N also can be 3 or 2.When N is 3, the quantity that the relay light of relaying terminal is sent out module is 2, the quantity of light two splitters is 1, the quantity that relay light is received module is 3, at this moment, be connected with 2 remote terminations wherein respectively after 1 relay light is wherein sent out module and light two splitters is connected, another relay light is sent out module and directly is connected with remaining 1 remote termination; When the quantity N of remote termination was 2, the quantity that the relay light of relaying terminal is sent out module was 1, and the quantity of light two splitters is 1, and the quantity that relay light is received module is 2, and at this moment, one of them output port of the descending two deciliters road modules of radio frequency is idle.
Operation principle of the present utility model comprises that downstream signal covers principle and uplink signal transmissions principle, and preferred, the quantity N of remote termination is 4, and its operation principle is specific as follows:
After being coupled by coupler, the signal of downstream signal covering principle---mobile communication base station generation is sent to the relay duplexer of relaying terminal, the relay diplexer separates goes out downstream signal, downstream signal amplifies by relay downlink radio frequency module, by the descending two deciliters road modules of radio frequency radiofrequency signal is divided into 2 the tunnel then, every road signal is sent out module by 1 relay light respectively and is carried out electric light conversion and be modulated into light signal, 2 road light signals that obtain are divided into 2 tunnel totally 4 road light signals by 1 light two splitter respectively, each road light signal is sent to each remote termination by optical fiber remote respectively then, the far-end light of each remote termination is received module converting optical signals is become the mobile radio signal, be amplified to enough power by far-end downlink radio frequency module and descending power amplifier module then, carry out the covering of movable signal by the far-end duplexer by the cover antenna emission at last;
The cover antenna of uplink signal transmissions principle---4 remote terminations receives the upward signal of travelling carriage (mobile phone) emission in the overlay area separately respectively, far-end diplexer separates by separately goes out upward signal and enters into up LNA module again, signal amplifies the back through the up radio-frequency module of up LNA module and far-end and sends out module by far-end light and carry out the electric light conversion and be modulated into light signal, 4 remote terminations obtain 4 road light signals, 4 road light signals arrive the relaying terminal by Optical Fiber Transmission respectively, 4 relay light are received module and are converted this 4 road light signal to 4 road mobile radio signals respectively, this 4 road mobile radio signal is by the up four deciliters road modules of radio frequency synthetic a tunnel, amplify through the up radio-frequency module in relay, send to the base station by relay duplexer and coupler successively then.
When the quantity N of remote termination is 2 or 3, its operation principle quantity N concrete and remote termination be 4 situation in like manner.
The utility model has following advantage and effect with respect to prior art:
1, the utility model utilizes the descending two deciliters road modules of the radio frequency of relaying terminal, light two splitters, the up four deciliters road modules of radio frequency, up radio-frequency module in relay and relay downlink radio frequency module, signal is carried out shunt undampedly and closes the road, can realize that optical fiber direct amplification stands in 1 communications of dragging long distance under many situations, ensured coverage, can reduce the cost of repeater relaying terminal again, volume and power consumption, optimize the performance of trunking, especially drag under 4 the situation 1, the longer transmission distance of the utility model reaches 20 kilometers, satisfies mobile communication to the 1 covering requirement of dragging many optical fiber repeaters;
2, after the utility model adopts independently light to receive module to receive again radio frequency close the road, solved there is the phase mutual interference along separate routes under the mode in light between the same light wavelength problem.
Description of drawings
Fig. 1 is a traditional structural representation that drags many optical fiber repeaters that adopts at relaying terminal place that radio frequency realizes along separate routes;
The structural representation that drags many optical fiber repeaters that Fig. 2 realizes for traditional employing optical branching unit;
Fig. 31 structural representation that drags 4 optical fiber repeaters that to be the utility model embodiment radio frequency deciliter road combine along separate routes with light.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
In order better to set forth the utility model, in the present embodiment, what a kind of radio frequency of the utility model deciliter road and light combined along separate routes 1 drags many optical fiber repeaters employings 1 to drag 4 covering scheme, and promptly the quantity of remote termination is 4.
1 concrete structure that drags 4 optical fiber repeaters that Figure 3 shows that a kind of radio frequency of present embodiment deciliter road and light combines along separate routes comprises relaying terminal and 4 identical remote terminations (remote termination 1, remote termination 2, remote termination 3 and remote termination 4).Described relaying terminal all links to each other by a pair of optical fiber with each remote termination.
Described relaying terminal comprises the relay duplexer, relay downlink radio frequency module, the descending two deciliters road modules of radio frequency, the up four deciliters road modules of radio frequency, light two splitters 1, light two splitters 2, the up radio-frequency module in relay, relay light is sent out module 1, relay light sends out module 2 and 4 relay light are received module (relay light receipts module 1, relay light is received module 2, relay light receives module 3 and relay light is received module 4), described relay duplexer is connected with the up radio-frequency module in relay with relay downlink radio frequency module simultaneously, (relay light is sent out module 1 simultaneously to send out module with 2 relay light after described relay downlink radio frequency module is connected with the descending two deciliters road modules of radio frequency, relay light is sent out module 2) be connected, relay light is sent out module 1 and is connected with light two splitters 1, relay light is sent out module 2 and is connected with light two splitters 2, and the up radio-frequency module in described relay is connected with the up four deciliters road modules of radio frequency, and (relay light is received module 1 with 4 relay light receipts modules simultaneously in the back, relay light is received module 2, relay light is received module 3 and is received module 4 with relay light) be connected.
Each remote termination includes far-end light and receives module, far-end downlink radio frequency module, descending power amplifier module, far-end duplexer, far-end light and send out module, the up radio-frequency module of far-end, up LNA module and cover antenna, described far-end light is received module and is connected with the far-end duplexer by far-end downlink radio frequency module, descending power amplifier module successively, described remote termination light is sent out module and also is connected with the far-end duplexer by the up radio-frequency module of far-end, up LNA module successively, and the far-end duplexer also is connected with cover antenna.
Each relay light is received module and is sent out by an optical fiber correspondence and the far-end light of 1 remote termination all that module is long-range to link to each other, be specially: relay light is received the far-end light of module 1 connection remote termination 1 and is sent out module, relay light is received the far-end light of module 2 connection remote terminations 2 and is sent out module, relay light is received the far-end light of module 3 connection remote terminations 3 and is sent out module, and relay light is received the far-end light of module 4 connection remote terminations 4 and sent out module.
Each light two splitter receives by the far-end light of 1 pair of optical fiber correspondence and 2 remote terminations all that module is long-range to link to each other, be specially: light two splitters 1 connect the far-end light receipts module of remote termination 1,2 respectively by 1 optical fiber, light two splitters 2 are received module by the far-end light of 1 optical fiber connection remote termination 3,4 respectively.
Relaying terminal in the utility model can communicate by the BTS in high-power coupler and the base station sub-system (Base Transceiver Station, base transceiver station) in the mobile communication base station is installed in the mobile communication base station machine room.
Operation principle of the present utility model comprises that downstream signal covers principle and uplink signal transmissions principle, and is specific as follows:
Downstream signal covers principle---and coupler takes out mobile communications network (GSM from the BTS coupling, DCS, CDMA, WCDMA or cdma2000 etc.) signal, signal is sent to the relay duplexer module of relaying terminal, the relay diplexer separates goes out downstream signal, downstream signal amplifies by relay downlink radio frequency module, the descending two deciliters road modules of radio frequency are divided into 2 the tunnel with radiofrequency signal, first via signal is sent out module 1 by relay light and is carried out electric light conversion and be modulated into the single channel light signal, light signal 1 is divided into 2 the tunnel by light two splitters 1 and also is sent to remote termination 1 and remote termination 2 by an optical fiber respectively, the remote termination light of remote termination 1 and remote termination 2 is received module, and each becomes the mobile radio signal with received single channel converting optical signals, far-end downlink radio frequency module and descending power amplifier module by separately is amplified to enough power then, launch by cover antenna by far-end duplexer separately at last, carry out the covering of movable signal; Another road signal is sent out module 2 by relay light and is carried out electric light conversion and be modulated into single channel light signal 2, light signal 2 is divided into 2 the tunnel by light two splitters 2 and also is sent to remote termination 3 and remote termination 4 by an optical fiber respectively, the far-end light of remote termination 3 and remote termination 4 is received module, and each becomes the mobile radio signal with received single channel converting optical signals, far-end downlink radio frequency module and descending power amplifier module by separately is amplified to enough power then, launch by cover antenna by far-end duplexer separately at last, carry out the covering of movable signal.
More than be that downstream signal covers principle, just opposite for its transfer process of upward signal.
The upward signal that a plurality of travelling carriages (mobile phone) in remote termination 1 overlay area send is transferred to the cover antenna of remote termination 1 through the space, the cover antenna received signal of remote termination 1 is after after the up radio-frequency module amplification of up LNA module and far-end, sending out module by the far-end light in the remote termination 1 carries out the electric light conversion and is modulated into single channel light signal 5, single channel light signal 5 is sent to the relaying terminal through single fiber, relay light is received and is carried out the conversion of light/electricity behind the single channel light signal 5 that module 1 receives that remote termination 1 sends here and demodulate single channel mobile radio signal 1;
In like manner, the upward signal that a plurality of travelling carriages (mobile phone) in remote termination 2 overlay areas send is transferred to the cover antenna of remote termination 2 through the space, the cover antenna received signal of remote termination 2 is after after the up radio-frequency module amplification of up LNA module and far-end, sending out module by the far-end light in the remote termination 2 carries out the electric light conversion and is modulated into single channel light signal 6, single channel light signal 6 is sent to the relaying terminal through single fiber, relay light is received and is carried out the conversion of light/electricity behind the single channel light signal 6 that module 2 receives that remote termination 2 sends here and demodulate single channel mobile radio signal 2;
In like manner, the upward signal that a plurality of travelling carriages (mobile phone) in remote termination 3 overlay areas send is transferred to the cover antenna of remote termination 3 through the space, the cover antenna received signal of remote termination 3 is after after the up radio-frequency module amplification of up LNA module and far-end, sending out module by the far-end light in the remote termination 3 carries out the electric light conversion and is modulated into single channel light signal 7, single channel light signal 7 is sent to the relaying terminal through single fiber, relay light is received and is carried out the conversion of light/electricity behind the single channel light signal 7 that module 3 receives that remote termination 3 sends here and demodulate single channel mobile radio signal 3;
In like manner, the upward signal that a plurality of travelling carriages (mobile phone) in remote termination 4 overlay areas send is transferred to the cover antenna of remote termination 4 through the space, the cover antenna received signal of remote termination 4 is after after the up radio-frequency module amplification of up LNA module and far-end, sending out module by the far-end light in the remote termination 4 carries out the electric light conversion and is modulated into single channel light signal 8, single channel light signal 8 is sent to the relaying terminal through single fiber, relay light is received and is carried out the conversion of light/electricity behind the single channel light signal 8 that module 4 receives that remote termination 4 sends here and demodulate single channel mobile radio signal 4;
Then, up four minutes mixers of the radio frequency of relaying terminal are received 4 road mobile radio signals ( mobile radio signal 1,2,3 and 4) synthetic a tunnel that module 1,2,3 and 4 transmits with relay light, give the relay up radio-frequency module then, signal is sent into the base station after being coupled by relay duplexer and coupler successively after amplifying.
Like this, 1 drag many optical fiber repeaters just can communicate by letter, enlarged the coverage of base station setting up between the travelling carriage in a plurality of areas of coverage (mobile phone) and the base station by what this radio frequency deciliter road and light combined along separate routes.
When the quantity N of remote termination is 2 or 3, its operation principle quantity N concrete and remote termination be 4 situation in like manner.
The foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (7)
1. what a radio frequency deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, comprise a relaying terminal and N remote termination, described relaying terminal is connected by optical fiber with each remote termination, it is characterized in that: described relaying terminal comprises the relay duplexer, relay downlink radio frequency module, the descending two deciliters road modules of radio frequency, the up four deciliters road modules of radio frequency, light two splitters, the up radio-frequency module in relay, relay light sends out module and relay light is received module, described relay duplexer is connected with the up radio-frequency module in relay with relay downlink radio frequency module simultaneously, sending out module with relay light after described relay downlink radio frequency module is connected with the descending two deciliters road modules of radio frequency is connected, relay light is sent out module and is connected with light two splitters, receives module with relay light after the up radio-frequency module in described relay is connected with the up four deciliters road modules of radio frequency and is connected.
2. what radio frequency according to claim 1 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, it is characterized in that: described remote termination comprises far-end light receipts module, far-end downlink radio frequency module, descending power amplifier module, the far-end duplexer, far-end light is sent out module, the up radio-frequency module of far-end, up LNA module and cover antenna, described far-end light is received module successively by far-end downlink radio frequency module, descending power amplifier module is connected with the far-end duplexer, described far-end light is sent out module successively by the up radio-frequency module of far-end, up LNA module also is connected with the far-end duplexer, and the far-end duplexer also is connected with cover antenna.
3. what radio frequency according to claim 2 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, and it is characterized in that: the quantity N of described remote termination gets 2,3 or 4.
4. what radio frequency according to claim 3 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, it is characterized in that: the relay light of relaying terminal is sent out module, light two splitters, relay light, and to receive the concrete quantity of module corresponding with the quantity N of remote termination.
5. what radio frequency according to claim 4 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, it is characterized in that: when the quantity N of remote termination is 4, the quantity that the relay light of relaying terminal is sent out module is 2, and the quantity of light two splitters is 2, and the quantity that relay light is received module is 4.
6. what radio frequency according to claim 4 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, it is characterized in that: when the quantity N of remote termination is 3, the quantity that the relay light of relaying terminal is sent out module is 2, the quantity of light two splitters is 1, the quantity that relay light is received module is 3, at this moment, be connected with 2 remote terminations wherein respectively after 1 relay light is wherein sent out module and light two splitters is connected, another relay light is sent out module and directly is connected with remaining 1 remote termination.
7. what radio frequency according to claim 4 deciliter road and light combined along separate routes 1 drags many optical fiber repeaters, it is characterized in that: when the quantity of remote termination when the quantity N of remote termination is 2, the quantity that the relay light of relaying terminal is sent out module is 1, the quantity of light two splitters is 1, and the quantity that relay light is received module is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200545154U CN201450507U (en) | 2009-04-14 | 2009-04-14 | One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200545154U CN201450507U (en) | 2009-04-14 | 2009-04-14 | One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch |
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| CN201450507U true CN201450507U (en) | 2010-05-05 |
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| CN2009200545154U Expired - Fee Related CN201450507U (en) | 2009-04-14 | 2009-04-14 | One-dragged multi-fiber optic repeater with combined radio frequency combining branch and optical branch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377027A (en) * | 2010-08-27 | 2012-03-14 | 大唐移动通信设备有限公司 | Active antenna and method for calibrating active antenna |
| CN105827324A (en) * | 2016-05-24 | 2016-08-03 | 桂林市思奇通信设备有限公司 | Optical fiber repeater |
-
2009
- 2009-04-14 CN CN2009200545154U patent/CN201450507U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377027A (en) * | 2010-08-27 | 2012-03-14 | 大唐移动通信设备有限公司 | Active antenna and method for calibrating active antenna |
| CN105827324A (en) * | 2016-05-24 | 2016-08-03 | 桂林市思奇通信设备有限公司 | Optical fiber repeater |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20150414 |
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| EXPY | Termination of patent right or utility model |