CN204906398U - A optic fibre remote radio head device for private network system - Google Patents
A optic fibre remote radio head device for private network system Download PDFInfo
- Publication number
- CN204906398U CN204906398U CN201520732157.3U CN201520732157U CN204906398U CN 204906398 U CN204906398 U CN 204906398U CN 201520732157 U CN201520732157 U CN 201520732157U CN 204906398 U CN204906398 U CN 204906398U
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- signal
- monitoring module
- optical fiber
- duplexer
- electronic attenuator
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Abstract
The utility model relates to a communication system provides an optic fibre remote radio head device for private network system, the mobile communication network optimization device comprises a near -end machine and a far -end machine, the near -end machine carries out the optical fiber transmission communication through optic fibre and remote termination and is connected, first power, first monitoring module, alms giver's antenna, first duplexer, wireless modem, first electronic attenuator, second electronic attenuator and near -end optical transmitter and receiver are drawn together to the near -end press packed bale, the remote termination includes second source, second monitoring module, retransmission antenna, second duplexer, downstream filtering ware, down power amplifier, goes upward the wave filter, goes upward low -noise amplifier and distal end optical transmitter and receiver. The utility model discloses an optic fibre remote radio head equipment increase transmit power, optimizing system improves system sensitivity, enlarges the target of system's coverage.
Description
Technical field
The utility model relates to communication system, particularly a kind of optical fiber radio frequency extension apparatus for private network system.
Background technology
Along with the development of the communication technology, the fast development of World Economics, private network talkback machine system being widely used in all trades and professions gradually, as main means of communication, and in the private network communication network that these are large, the problems such as the addressing of website is difficult, coverage is too small, communication distance is inadequate also constantly occur.In a communications system, the antenna height of general antenna is higher, communication distance is far away, and machine room is general all in bottom, too high antenna height also brings excessive feeder loss, and when causing the power output of equipment end reality to antenna end, loss greatly, at receiving terminal too, the loss of antenna and equipment room has had a strong impact on the sensitivity of system.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of increase transmitting power, improve sensitivity, the optical fiber radio frequency extension apparatus for private network system of target of expanding the coverage area.
For solving this technical problem, the utility model takes following scheme: a kind of optical fiber radio frequency extension apparatus for private network system, comprise near-end machine and remote termination, described near-end machine carries out Optical Fiber Transmission communication by optical fiber and remote termination and is connected, and described near-end machine comprises the first power supply, first monitoring module, donor antenna, first duplexer, wireless Modem, first electronic attenuator, second electronic attenuator and near-end optical transmitter and receiver, described first monitoring module is respectively to the first electronic attenuator, the operating state of the second electronic attenuator and near-end optical transmitter and receiver is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through wireless Modem, and described first power supply is that in near-end machine, each active module embedded therein is powered, and described remote termination comprises second source, second monitoring module, retransmitting antenna, second duplexer, downstream filter, downlink power amplifier, upstream filter, up low noise amplifier and far-end optical transceiver, described second monitoring module is respectively to downstream filter, downlink power amplifier, upstream filter, the operating state of up low noise amplifier and far-end optical transceiver is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through Optical Fiber Transmission to the first monitoring module of near-end machine, and described second source is that in remote termination, each active module embedded therein is powered,
The donor antenna of described near-end machine receives from the downstream signal to base station, after first duplexer filtering, 360MHz downstream signal is input to the second electronic attenuator, export near-end optical transmitter and receiver to by the second electronic attenuator control signal again and signal changed into light signal through Optical Fiber Transmission to the far-end optical transceiver of remote termination, and be delivered to downstream filter after changing light signal into the signal of telecommunication by far-end optical transceiver, required 360MHz downstream signal is delivered to the second duplexer and is carried out secondary filter by filtered output signal again after downlink power amplifier is amplified, finally filtered signal is covered radiation by the retransmitting antenna of remote termination to signal blind zone,
The upward signal of the retransmitting antenna receiving terminal transmission of described remote termination, send into upstream filter send 350MHz upward signal to up low noise amplifier amplification after the second duplexer filtering after and carry out secondary filter, filtered signal changes light signal into through Optical Fiber Transmission to the near-end optical transmitter and receiver of near-end machine by far-end optical transceiver again, the first electronic attenuator is delivered to after changing this light signal into the signal of telecommunication by near-end optical transmitter and receiver again, controlled to export upward signal to first duplexer filtering by the first electronic attenuator again, finally filtered signal is delivered to base stations couple port by the donor antenna of near-end machine.
Further improvement, also comprises the first battery and the second battery, and described first battery is connected with the first monitoring module for the first monitoring module provides back-up source, and described second battery is connected for the second monitoring module provides back-up source with the second monitoring module.
By adopting preceding solution, the beneficial effects of the utility model are: by uplink 350MHz signal, downlink transfer 360MHz signal, make its output signal frequency and are input into signal frequency and duplicate, clear channel, can not take the frequency resource of more preciousnesses; And adopt Optical Fiber Transmission distance, namely distance base station coverage is comparatively far away, makes the utility model equipment there is not co-channel interference, so coverage hole antenna can select omnidirectional or directional antenna according to landform situation, coverage mode diversity; It is provided separately by near-end machine and remote termination, there is not wireless discharging-directly station transceiver insulation problem, and addressing is convenient; Simultaneously double-smoothing is set on remote termination, and arranges that fiber optic stretch equipment is up, downstream frequency is separated by 10MHz, avoid network optimization equipment inside and formed loop self-excited; The inside of near-end machine and remote termination is respectively equipped with monitoring module, to provide long-range inquiry, controlling functions, and can timing uploading device state information, fault active alarm etc.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model embodiment.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, the optical fiber radio frequency extension apparatus for private network system of the present utility model, comprises near-end machine 1 and remote termination 2, and described near-end machine 1 carries out Optical Fiber Transmission communication by optical fiber with remote termination 2 and is connected, and described near-end machine 1 comprises the first power supply 11, first battery, first monitoring module 12, donor antenna 13, first duplexer 14, wireless Modem 15, first electronic attenuator 16, second electronic attenuator 17 and near-end optical transmitter and receiver 18, described first monitoring module 12 is respectively to the first electronic attenuator 16, the operating state of the second electronic attenuator 17 and near-end optical transmitter and receiver 18 is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through wireless Modem, described first power supply 11 is that in near-end machine 1, each active module embedded therein is powered, described first battery is connected for the first monitoring module 12 provides back-up source with the first monitoring module 12, and described remote termination 2 comprises second source 21, second battery, second monitoring module 22, retransmitting antenna 23, second duplexer 24, downstream filter 25, downlink power amplifier 26, upstream filter 27, up low noise amplifier 28 and far-end optical transceiver 29, described second monitoring module 22 is respectively to downstream filter 25, downlink power amplifier 26, upstream filter 27, the operating state of up low noise amplifier 28 and far-end optical transceiver 29 is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through Optical Fiber Transmission to the first monitoring module 12 of near-end machine 1, described second source 21 is that in remote termination 2, each active module embedded therein is powered, and described second battery is connected for the second monitoring module 22 provides back-up source with the second monitoring module 22,
The donor antenna 13 of described near-end machine 1 receives from the downstream signal to base station, after first duplexer 14 filtering, 360MHz downstream signal is input to the second electronic attenuator 17, export near-end optical transmitter and receiver 18 to by the second electronic attenuator 17 control signal again and signal changed into light signal through Optical Fiber Transmission to the far-end optical transceiver 29 of remote termination 2, and be delivered to downstream filter 25 after changing light signal into the signal of telecommunication by far-end optical transceiver 29, required 360MHz downstream signal is delivered to the second duplexer 24 and is carried out secondary filter by filtered output signal again after downlink power amplifier 26 is amplified, finally filtered signal is covered radiation by the retransmitting antenna 23 of remote termination 2 to signal blind zone,
The upward signal of the retransmitting antenna 23 receiving terminal transmission of described remote termination 2, send into upstream filter 27 send 350MHz upward signal to up low noise amplifier 28 amplification after the second duplexer 24 filtering after and carry out secondary filter, filtered signal changes light signal into through Optical Fiber Transmission to the near-end optical transmitter and receiver 18 of near-end machine 1 by far-end optical transceiver 29 again, the first electronic attenuator 16 is delivered to after changing this light signal into the signal of telecommunication by near-end optical transmitter and receiver 18 again, controlled to export upward signal to first duplexer 14 filtering by the first electronic attenuator 16 again, finally filtered signal is delivered to base stations couple port by the donor antenna 13 of near-end machine 1.
The utility model passes through at uplink 350MHz signal, downlink transfer 360MHz signal, makes its output signal frequency and be input into signal frequency to duplicate, and clear channel, can not take the frequency resource of more preciousnesses; And adopt Optical Fiber Transmission distance, namely distance base station coverage is comparatively far away, makes the utility model equipment there is not co-channel interference, so coverage hole antenna can select omnidirectional or directional antenna according to landform situation, coverage mode diversity; It is provided separately by near-end machine and remote termination, there is not wireless discharging-directly station transceiver insulation problem, and addressing is convenient; Simultaneously double-smoothing is set on remote termination, and arranges that fiber optic stretch equipment is up, downstream frequency is separated by 10MHz, avoid network optimization equipment inside and formed loop self-excited; The inside of near-end machine and remote termination is respectively equipped with monitoring module, to provide long-range inquiry, controlling functions, and can timing uploading device state information, fault active alarm etc.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (2)
1. for an optical fiber radio frequency extension apparatus for private network system, it is characterized in that: comprise near-end machine and remote termination, described near-end machine carries out Optical Fiber Transmission communication by optical fiber and remote termination and is connected, and described near-end machine comprises the first power supply, first monitoring module, donor antenna, first duplexer, wireless Modem, first electronic attenuator, second electronic attenuator and near-end optical transmitter and receiver, described first monitoring module is respectively to the first electronic attenuator, the operating state of the second electronic attenuator and near-end optical transmitter and receiver is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through wireless Modem, and described first power supply is that in near-end machine, each active module embedded therein is powered, and described remote termination comprises second source, second monitoring module, retransmitting antenna, second duplexer, downstream filter, downlink power amplifier, upstream filter, up low noise amplifier and far-end optical transceiver, described second monitoring module is respectively to downstream filter, downlink power amplifier, upstream filter, the operating state of up low noise amplifier and far-end optical transceiver is carried out management and monitoring and is carried out remote alarms by abnormal for operating state through Optical Fiber Transmission to the first monitoring module of near-end machine, and described second source is that in remote termination, each active module embedded therein is powered,
The donor antenna of described near-end machine receives from the downstream signal to base station, after first duplexer filtering, 360MHz downstream signal is input to the second electronic attenuator, export near-end optical transmitter and receiver to by the second electronic attenuator control signal again and signal changed into light signal through Optical Fiber Transmission to the far-end optical transceiver of remote termination, and be delivered to downstream filter after changing light signal into the signal of telecommunication by far-end optical transceiver, required 360MHz downstream signal is delivered to the second duplexer and is carried out secondary filter by filtered output signal again after downlink power amplifier is amplified, finally filtered signal is covered radiation by the retransmitting antenna of remote termination to signal blind zone,
The upward signal of the retransmitting antenna receiving terminal transmission of described remote termination, send into upstream filter send 350MHz upward signal to up low noise amplifier amplification after the second duplexer filtering after and carry out secondary filter, filtered signal changes light signal into through Optical Fiber Transmission to the near-end optical transmitter and receiver of near-end machine by far-end optical transceiver again, the first electronic attenuator is delivered to after changing this light signal into the signal of telecommunication by near-end optical transmitter and receiver again, controlled to export upward signal to first duplexer filtering by the first electronic attenuator again, finally filtered signal is delivered to base stations couple port by the donor antenna of near-end machine.
2. the optical fiber radio frequency extension apparatus for private network system according to claim 1, it is characterized in that: also comprise the first battery and the second battery, described first battery is connected with the first monitoring module for the first monitoring module provides back-up source, and described second battery is connected for the second monitoring module provides back-up source with the second monitoring module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732157.3U CN204906398U (en) | 2015-09-21 | 2015-09-21 | A optic fibre remote radio head device for private network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732157.3U CN204906398U (en) | 2015-09-21 | 2015-09-21 | A optic fibre remote radio head device for private network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204906398U true CN204906398U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520732157.3U Expired - Fee Related CN204906398U (en) | 2015-09-21 | 2015-09-21 | A optic fibre remote radio head device for private network system |
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| CN (1) | CN204906398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445543A (en) * | 2019-08-22 | 2019-11-12 | 和源通信（上海）股份有限公司 | A kind of Optical fiber relay remote device |
-
2015
- 2015-09-21 CN CN201520732157.3U patent/CN204906398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445543A (en) * | 2019-08-22 | 2019-11-12 | 和源通信（上海）股份有限公司 | A kind of Optical fiber relay remote device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20170921 |