CN105450284B - It is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater - Google Patents
It is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater Download PDFInfo
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- CN105450284B CN105450284B CN201510981912.6A CN201510981912A CN105450284B CN 105450284 B CN105450284 B CN 105450284B CN 201510981912 A CN201510981912 A CN 201510981912A CN 105450284 B CN105450284 B CN 105450284B
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- main
- combiner
- classification
- power splitter
- duplexer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
- H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to it is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater, including main combiner, it is classified combiner, first bi-directional communication channels and the second bi-directional communication channels, the main combiner includes duplexer and two power splitter of two power splitter of the first main and the second main for being separately connected duplexer, the classification combiner includes two power splitters of mutually a sequence of filter and classification, one end of first bi-directional communication channels is separately connected two power splitter of the first main, two power splitters of second main, two power splitter and classification, the other end connects remote termination, one end of second bi-directional communication channels is separately connected filter and duplexer, the other end connects monitoring center.Compared with prior art, the present invention has many advantages, such as that structure is simply small and exquisite, at low cost, wiring is simple.
Description
Technical field
The present invention relates to field of communication technology, more particularly, to it is a kind of can the railway communication optical fiber repeater of two-way communication use
Main classification combiner.
Background technique
Repeater is the relay repeater between base station (BS) and mobile station (MS), belongs to same frequency multiplying arrangement, refers to
A kind of radio transmitting relay device of signal enhancing is played during wireless communication transmissions.The basic function of repeater is exactly one
A radio-frequency signal power enhancer.Repeater can solve to can not receive villages and small towns, tourist district, highway of base station signal etc., and can solve
The certainly signal covering in large-scale and ultra-large type building, for the more demanding high-rise region building (group) of large size, cell etc.
Occasion.
Railway C3 route repeater is as its name suggests used in railway communication.Nowadays, railway communication is mostly decimetre
Wave, also, the transmission of railway signal is not often one-way transmission signal, needs downstream transmission signal.Signals transmission
In can generate many noises, need to filter out.The disadvantages of traditional duplexer has integrated level low, and volume is big, not easy to install, these
Disadvantage requires to improve.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide it is a kind of can two-way communication
The main classification combiner of railway communication optical fiber repeater has many advantages, such as that structure is simply small and exquisite, at low cost, wiring is simple.
The purpose of the present invention can be achieved through the following technical solutions:
It is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater, including main combiner, classification
Combiner, the first bi-directional communication channels and the second bi-directional communication channels, the main combiner include duplexer and connect respectively
Two power splitter of two power splitter of the first main and the second main of duplexer is connect, the classification combiner includes mutually a sequence of filter
Be classified two power splitters, one end of first bi-directional communication channels is separately connected two power splitter of the first main, the second main two
Two power splitters of power splitter and classification, the other end connect remote termination, and one end of second bi-directional communication channels is separately connected filtering
Device and duplexer, the other end connect monitoring center.
First main, two power splitter, two power splitter of the second main and two power splitters of classification are two function of patch type point
Device.
The duplexer is patch type duplexer.
The filter is patch type filter.
First main, two power splitter is two function point for meeting centre frequency 887MHz, bandwidth 4MHz, the 8.5dB that decays
Device, two power splitter of the second main is two power splitters for meeting centre frequency 932MHz, bandwidth 4MHz, the 8.5dB that decays, described
Being classified two power splitters is two power splitters for meeting centre frequency 887MHz, bandwidth 4MHz, the 11dB that decays.
It further include the status switch point for controlling main combiner and being classified the status switch of combiner working condition
It Lian Jie not main combiner and classification combiner.
The main combiner, classification combiner, the first bi-directional communication channels and the second bi-directional communication channels are integrated in
On circuit board.
Compared with prior art, the invention has the following advantages that
1) have the function of main combining and classification combining, main combiner and classification combiner can by mixed signal according to
Different center frequency is handled respectively, enhances the receiving sensitivity of base station, is allowed to enhance working efficiency, is adapted to single communication signal
With the transmission of mixed communication signal, while main combiner and classification combiner also have a bi-directional communication function, simplify communication line
Road, structure is simple, the device being suitable as in the near-end machine of railway C3 route repeater.
2) two power splitter of patch type, patch type duplexer and patch type filter are used, component is smaller, compares in the market
It is easy to get, has the characteristics that structure is simply small and exquisite, performance is stable, integrated high and cheap and higher practical
Value.
3) two power splitter of the first main, two power splitter of the second main and classification two function point of suitable centre frequency are chosen
Device, for handling the signal of decimetric wave (superfrequency, UHF) wave band, especially suitable for railway communication field, and main combiner and
The decaying difference for being classified combiner is greater than 2dB, it is ensured that works and is independent of each other between main combiner and classification combiner, avoids
Since exception occurs in certain level work, another grade is influenced.
4) status switch is set, it, can also be as needed in addition to control main combiner and classification combiner work at the same time
Both control works independently, i.e., main combiner is in normally opened working condition, when main combiner breaks down, status switch
Control classification combiner work, highly reliable, tolerance performance is strong.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
In figure: 1, main combiner, 11, duplexer, two power splitter of the 12, first main, two power splitter of the 13, second main,
2, classification combiner, 21, filter, 22, two power splitters of classification, the 3, first bi-directional communication channels, the 4, second bi-directional communication channels,
5, remote termination, 6, monitoring center.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment one
As shown in Figure 1, it is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater, including main conjunction
Road device 1, classification combiner 2, the first bi-directional communication channels 3 and the second bi-directional communication channels 4, main combiner 1 include duplexer
11 and it is separately connected two power splitter 13 of two power splitter 12 of the first main and the second main of duplexer 11, classification combiner 2 wraps
Two power splitters 22 of mutually a sequence of filter 21 and classification are included, one end of the first bi-directional communication channels 3 is separately connected the first main two
Two power splitters 22 of power splitter 12, two power splitter 13 of the second main and classification, the other end connect remote termination 5, and the second two-way communication is logical
The one end in road 4 is separately connected filter 21 and duplexer 11, and the other end connects monitoring center 6, which can realize
Two-way signaling transmission between remote termination 5 and monitoring center 6, in which:
First main, two power splitter 12, two power splitter 13 of the second main and two power splitters 22 of classification are two function of patch type point
Device.
Duplexer 11 is patch type duplexer.
Filter 21 is patch type filter.
Main combiner 1, classification combiner 2, the first bi-directional communication channels 3 and the second bi-directional communication channels 4 are integrated in
On circuit board.Main purpose using main combiner 1 and classification combiner 2 is to enhance the receiving sensitivity of base station, is allowed to increase
Strong working efficiency.It works and is independent of each other between main combiner 1 and classification combiner 2, avoid exception occur due to certain level work,
Influence another grade.
In the present invention, two power splitter 12 of the first main is to meet centre frequency 887MHz, bandwidth 4MHz, decaying 8.5dB
Two power splitters, two power splitter 13 of the second main are two power splitters for meeting centre frequency 932MHz, bandwidth 4MHz, the 8.5dB that decays,
Being classified two power splitters 22 is two power splitters for meeting centre frequency 887MHz, bandwidth 4MHz, the 11dB that decays.The model of filter 21
For SPR887F4R04FB, resistance to temp effect is good, and patch size is 13 × 12mm, and centre frequency is 885MHz~889MHz, insertion damage
Consumption is 4.5dB；Duplexer 11 is dielectric duplexer 11, and model SRP887F932N10N04FA, patch size is 42 × 17mm,
Compared to great cavity duplexer, can reduce installation space, centre frequency be 885MHz~889MHz and 930MHz~
934MHz, and index complies fully with near-end machine demand, insertion loss 2dB；Three two power splitters are patch minitype paster two
Power splitter, model SBTC-2-10L+, with wide, small in size, precision height.
Since railway communication GMS-R system uplink channel centre frequency is 932MHz, down channel centre frequency is
887MHz so the design uses above-mentioned centre frequency, and uses frequency diversity reception technique.Diversity reception is to utilize signal
With the property of channel, the multipath signal received is separated into irrelevant (independent) multipath signal, then multipath declines
The energy for falling channel dispersion more effectively receives processing and makes decisions later, to achieve the purpose that anti-fading.
Compared with prior art, component used in the present invention is smaller, is easier to obtain in the market, and has structure
It is simple it is small and exquisite, performance is stable, integrated high and cheap feature, practical value with higher is logical suitable for railway
Letter field.
Embodiment two
The difference between this embodiment and the first embodiment lies in main classification combiner further includes for controlling 1 He of main combiner
It is classified the status switch of 2 working condition of combiner, status switch is separately connected main combiner 1 and classification combiner 2, and state is opened
It closes controllable main combiner 1 and classification combiner 2 works at the same time, main combiner 1 can also be controlled and classification combiner 2 is only
Vertical work can whether failure controls the work shape of classification combiner 2 according to main combiner 1 when both control works independently
State, i.e., when main 1 failure of combiner, control classification combiner 2 works, so that entire combiner can still work on.
Claims (5)
1. one kind can two-way communication the main classification combiner of railway communication optical fiber repeater, which is characterized in that including main close
Road device (1), classification combiner (2), the first bi-directional communication channels (3) and the second bi-directional communication channels (4), further include for controlling
Main combiner (1) and the status switch for being classified combiner (2) working condition, the status switch are separately connected main combiner
(1) and classification combiner (2), the main combiner (1) includes duplexer (11) and is separately connected the of duplexer (11)
One main, two power splitter (12) and two power splitter of the second main (13), the classification combiner (2) include mutually a sequence of filter
(21) and two power splitters (22) are classified, one end of first bi-directional communication channels (3) is separately connected two power splitter of the first main
(12), two power splitter of the second main (13) and classification two power splitters (22), the other end connect remote termination (5), and described second is two-way
One end of communication channel (4) is separately connected filter (21) and duplexer (11), and the other end connects monitoring center (6), and described the
One main, two power splitter (12) be meet centre frequency 887MHz, bandwidth 4MHz, decay 8.5dB two power splitters, described second
Two power splitter of main (13) is two power splitters for meeting centre frequency 932MHz, bandwidth 4MHz, the 8.5dB that decays, the classification two
Power splitter (22) is two power splitters for meeting centre frequency 887MHz, bandwidth 4MHz, the 11dB that decays.
2. one kind according to claim 1 can two-way communication the main classification combiner of railway communication optical fiber repeater,
It is characterized in that, two power splitter of the first main (12), two power splitter of the second main (13) and classification two power splitters (22) are
Two power splitter of patch type.
3. one kind according to claim 1 can two-way communication the main classification combiner of railway communication optical fiber repeater,
It is characterized in that, the duplexer (11) is patch type duplexer.
4. one kind according to claim 1 can two-way communication the main classification combiner of railway communication optical fiber repeater,
It is characterized in that, the filter (21) is patch type filter.
5. one kind according to claim 1 can two-way communication the main classification combiner of railway communication optical fiber repeater,
It is characterized in that, the main combiner (1), classification combiner (2), the first bi-directional communication channels (3) and the second two-way communication are logical
Road (4) is integrated on circuit board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981912.6A CN105450284B (en) | 2015-12-23 | 2015-12-23 | It is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater |
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|---|---|---|---|
| CN201510981912.6A CN105450284B (en) | 2015-12-23 | 2015-12-23 | It is a kind of can two-way communication the main classification combiner of railway communication optical fiber repeater |
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| CN105450284A CN105450284A (en) | 2016-03-30 |
| CN105450284B true CN105450284B (en) | 2019-10-01 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4688260A (en) * | 1985-10-09 | 1987-08-18 | Westinghouse Electric Corp. | High-reliability fiber optic repeater |
| KR20000007806A (en) * | 1998-07-07 | 2000-02-07 | 정용문 | Transmission system in optical switching system and methode thereof |
| CN101729150A (en) * | 2009-11-18 | 2010-06-09 | 耿直 | Transmission treatment method of optical fiber repeater and variable-channel transmission optical fiber repeater |
| CN102624461A (en) * | 2012-04-15 | 2012-08-01 | 耿直 | Two-way transponding working method of optical fiber repeater and two-way transponding optical fiber repeater |
| CN204559569U (en) * | 2015-03-31 | 2015-08-12 | 京信通信技术(广州)有限公司 | Active distributed antenna system and relaying terminal thereof |
| CN205385482U (en) * | 2015-12-23 | 2016-07-13 | 通号通信信息集团上海有限公司 | But both -way communication's railway communication optic fibre repeater is with main combiner in grades |
-
2015
- 2015-12-23 CN CN201510981912.6A patent/CN105450284B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4688260A (en) * | 1985-10-09 | 1987-08-18 | Westinghouse Electric Corp. | High-reliability fiber optic repeater |
| KR20000007806A (en) * | 1998-07-07 | 2000-02-07 | 정용문 | Transmission system in optical switching system and methode thereof |
| CN101729150A (en) * | 2009-11-18 | 2010-06-09 | 耿直 | Transmission treatment method of optical fiber repeater and variable-channel transmission optical fiber repeater |
| CN102624461A (en) * | 2012-04-15 | 2012-08-01 | 耿直 | Two-way transponding working method of optical fiber repeater and two-way transponding optical fiber repeater |
| CN204559569U (en) * | 2015-03-31 | 2015-08-12 | 京信通信技术(广州)有限公司 | Active distributed antenna system and relaying terminal thereof |
| CN205385482U (en) * | 2015-12-23 | 2016-07-13 | 通号通信信息集团上海有限公司 | But both -way communication's railway communication optic fibre repeater is with main combiner in grades |
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| CN105450284A (en) | 2016-03-30 |
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