CN102281109A - Multi-system optical transceiver optical fiber access system - Google Patents
Multi-system optical transceiver optical fiber access system Download PDFInfo
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- CN102281109A CN102281109A CN2010101952403A CN201010195240A CN102281109A CN 102281109 A CN102281109 A CN 102281109A CN 2010101952403 A CN2010101952403 A CN 2010101952403A CN 201010195240 A CN201010195240 A CN 201010195240A CN 102281109 A CN102281109 A CN 102281109A
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Abstract
The present invention relates to a multi-system optical transceiver optical fiber access system, comprising a near-end computer, a far-end computer, an optical fiber module and an optical fiber cable, wherein the near-end computer is connected to the optical fiber module, the optic fiber module is connected to the near-end computer through the optical fiber cable. Compared with the prior art, the optical transceiver optical fiber access system has the advantages of small unwanted signals, low cost and simple networking.
Description
Technical field
The present invention relates to a kind of optical transceiver Fiber Access System, especially relate to a kind of multisystem optical transceiver Fiber Access System.
Background technology
Mobile communication subscriber increases on a large scale; make that the scale of wireless network is increasing; requirement to the quality of network is also more and more higher; yet the overlay area of which kind of radio communication all will produce weak signal area or the region between the heart and the diaphragm district; to some remote districts; (tunnel, special place; subway; in the building etc.) problem that these local signals cover to be solved and this cost-effective equipment of optical fiber repeater can be chosen usually; right your mobile market operation commercial city is to obtain good client, all can actively use indoor covering system optimization work in a large number to above-mentioned place.With the telephone traffic of contention, open up new telephone traffic, with regard to present present situation, single outdoor macro honeycomb base station that relies on covers the requirement that can not satisfy the network coverage, capacity and quality to it.Some problems below main the existence.
(1) wasting of resources: operator buy out respectively idea as with CDMA, GSM, DCS, WCDMA, TDSCDMA, etc. fiber plant.This will cause operation cost and constructional difficulties degree to increase, and the problems such as repeated construction that covering system brought that operator builds oneself respectively are more and more outstanding
(2) capacity aspect: some buildings such as supermarket, conference centre etc., because user density is excessive, cdma network user bottom noise is raised greatly, GSM is congested serious, causes finite capacity.
(3) quality aspect: because frequency interferences, pilot pollution and ping-pong etc. cause the jitter of sub-district, speech quality is difficult to guarantee, even call drop takes place.
Summary of the invention
Purpose of the present invention is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of unwanted signal is few, cost is low, the simple multisystem optical transceiver of networking Fiber Access System.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of multisystem optical transceiver Fiber Access System is characterized in that, comprises near-end machine, remote termination, optic module, optical fiber cable, and described near-end machine is connected with optic module, and described optic module is connected with the near-end machine by optical fiber cable.
Described near-end machine comprises multisystem mixing platform, power amplifier driver module, four frequency combiners, and described multisystem mixing platform, power amplifier driver module, four frequency combiners connect successively.
Described remote termination comprises CG remote termination, DW remote termination.
Described power amplifier driver module comprises CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module.
Described CG remote termination, DW remote termination include dual duplex, first power amplifier, low noise amplifier, descending splitter, up mixer, described descending splitter is connected with first power amplifier, described up mixer is connected with low noise amplifier, and described dual duplex is connected with first power amplifier, low noise amplifier respectively.
Described CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module include dielectric duplexer, second power amplifier.
Compared with prior art, the present invention has the following advantages:
1, unwanted signal is few, cost is low, networking is simple.
2, so the downstream branch of system is transmitted in single device, this make each system to depart from inter-working far away.
3, to effective solution of the unwanted signals such as second harmonic of CDMA, GSM.
4, the signal with multisystem transmits in same wideband optical fiber transceiver module, solves traditional optical module and divides the single system transmission problem, saves cost.
5, solve to reduce the quantity and the configuration of outdoor network optimization equipment effectively, reduce cost greatly and the complexity of networking.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of multisystem optical transceiver Fiber Access System comprises near-end machine 1, remote termination, optic module 5, optical fiber cable 6, and described near-end machine 1 is connected with optic module 5, and described optic module 5 is connected with the near-end machine by optical fiber cable 6.
Described near-end machine 1 comprises multisystem mixing platform 7, power amplifier driver module 3, four frequency combiners 4, and described multisystem mixing platform 7, power amplifier driver module 3, four frequency combiners 4 connect successively.Described power amplifier driver module 3 comprises CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module.Described CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module include dielectric duplexer, second power amplifier.
Described remote termination comprises CG remote termination 21, DW remote termination 22.Described CG remote termination 21, DW remote termination 22 include dual duplex 10, first power amplifier 12, low noise amplifier 11, descending splitter 8, up mixer 9, described descending splitter 8 is connected with first power amplifier 12, described up mixer 9 is connected with low noise amplifier 11, describedly 10 is connected with first power amplifier 12, low noise amplifier 11 respectively in pairs.
Four frequency combiners 4 are with descending combining all in the communication system.The signal that power amplifier driver module 3 is come base station coupling carries out preposition amplification and controls input optical fibre module 5 simultaneously, adjust each system gain and when receiving through the received signal amplitude of the base station that is coupled back.Described optic module 5 comprises near-end optic module, distal fiber module, and the near-end optic module is to convert the radiofrequency signal of coming in the base station to optical signal transmission.The distal fiber module is that the light signal of terminal 1 transmission nearly is reduced into raw electrical signal.Dual duplex 10 is equivalent to two duplexer functionality.First power amplifier 12 amplifies the faint radiofrequency signal that antenna receives.Multisystem mixing platform 7 main effects are the downstream signal of CDMA, GSM, DCS, WCMDA system is closed the road, and the upward signal to each system carries out shunt simultaneously, and curb the useless interference component between each frequency band of a part.
1: downlink path flow chart:
A: each system operator base station is input in the power amplifier driver module 3 after by multisystem mixing platform 7, the signal that 3 pairs of base station couplings of power amplifier driver module are come carries out preposition amplification, and read the power of each person that has come of system output, also can carry out digital control to the gain of power amplifier driver module 3 according to the realization situation, control the power magnitude of input optical fibre module 5 simultaneously, to prevent overpower loss optical fiber module 5, the radiofrequency signal that optic module 5 is come power amplifier driver module 3 converts light signal to and is transferred to remote termination by optical fiber cable 6.The signal of finishing downlink communication near-end machine to this amplifies through-put power.
B: remote termination receives near-end machine 1 and passes the light signal of coming through optical fiber cable 6, the Optical Fiber Transmission module of remote termination 1 changes into the radiofrequency signal of constant amplitude and advances descending splitter 8 with CDMA, GSM, the descending independence of DCS, WCDMA separately, and the driver of the system separately of stimulating the menstrual flow realizes that pre-driver is input in first power amplifier 12 to certain amplitude, and output was connected to antenna through dual duplex 10 after first power amplifier 12 was amplified to the desired power grade of client with the signal of this amplitude.Realize relay function.
2: up reception path flow chart:
A: mobile subscriber's mobile phone transmitting power receives by reception antenna and enters in the dual duplex 10,10 transceiver channels separately and the resulting faint acknowledge(ment) signal that do not influence each other is input to low noise amplifier 11 and amplifies in pairs, low noise amplifier 11 amplifies this signal and guarantees good signal-to-noise, is input in the up mixer 9.Up mixer 9 closes the road with CDMA, GSM, DCS, WCDMA system uplink and is input to optic module 5.The radiofrequency signal of each system that optic module 5 will receive passes into light signal through optical fiber cable 6 input near-end machines 1.
B: near-end machine 1 with the signal of optical fiber cable 6 input carry out CDMA, GSM, DCS, WCDMA system separately input power amplifier driver module 3 separately after multisystem mixing platform 7 returns the base station.
Claims (6)
1. a multisystem optical transceiver Fiber Access System is characterized in that, comprises near-end machine, remote termination, optic module, optical fiber cable, and described near-end machine is connected with optic module, and described optic module is connected with the near-end machine by optical fiber cable.
2. a kind of multisystem optical transceiver Fiber Access System according to claim 1, it is characterized in that, described near-end machine comprises multisystem mixing platform, power amplifier driver module, four frequency combiners, and described multisystem mixing platform, power amplifier driver module, four frequency combiners connect successively.
3. a kind of multisystem optical transceiver Fiber Access System according to claim 1 is characterized in that described remote termination comprises CG remote termination, DW remote termination.
4. a kind of multisystem optical transceiver Fiber Access System according to claim 2 is characterized in that described power amplifier driver module comprises CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module.
5. a kind of multisystem optical transceiver Fiber Access System according to claim 3, it is characterized in that, described CG remote termination, DW remote termination include dual duplex, first power amplifier, low noise amplifier, descending splitter, up mixer, described descending splitter is connected with first power amplifier, described up mixer is connected with low noise amplifier, and described dual duplex is connected with first power amplifier, low noise amplifier respectively.
6. a kind of multisystem optical transceiver Fiber Access System according to claim 1 is characterized in that described CDMA driver module, GSM driver module, DCS driver module, WCDMA driver module include dielectric duplexer, second power amplifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101952403A CN102281109A (en) | 2010-06-08 | 2010-06-08 | Multi-system optical transceiver optical fiber access system |
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| CN2010101952403A CN102281109A (en) | 2010-06-08 | 2010-06-08 | Multi-system optical transceiver optical fiber access system |
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| CN2010101952403A Pending CN102281109A (en) | 2010-06-08 | 2010-06-08 | Multi-system optical transceiver optical fiber access system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611503A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Optical fiber network system |
| CN102684733A (en) * | 2012-05-04 | 2012-09-19 | 西安亿力通微波科技有限公司 | Dual-network bidirectional orthogonal power synthesis system |
| CN102833010A (en) * | 2012-08-10 | 2012-12-19 | 武汉虹信通信技术有限责任公司 | Passive intermodulation improvement method for base station signals of mobile communication system |
| CN105451105A (en) * | 2015-11-18 | 2016-03-30 | 佳律通信设备(上海)有限公司 | Optical transmitter and receiver access system based on multiple systems |
| CN106209245A (en) * | 2016-08-30 | 2016-12-07 | 烟台正维科技有限公司 | The serial communication network system connected based on optical fiber and 485 odd evens and method |
| CN106230508A (en) * | 2016-07-29 | 2016-12-14 | 四川天邑康和通信股份有限公司 | A kind of communicator in proximal fiber machine |
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| EP2159933A1 (en) * | 2008-08-28 | 2010-03-03 | Alcatel, Lucent | Levelling amplifiers in a distributed antenna system |
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| CN200941614Y (en) * | 2006-08-02 | 2007-08-29 | 冠日通讯科技（深圳）有限公司 | Multi-frequency channel directly releasing station |
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| EP2159933A1 (en) * | 2008-08-28 | 2010-03-03 | Alcatel, Lucent | Levelling amplifiers in a distributed antenna system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611503A (en) * | 2011-12-26 | 2012-07-25 | 深圳市虹远通信有限责任公司 | Optical fiber network system |
| CN102611503B (en) * | 2011-12-26 | 2015-02-25 | 深圳市虹远通信有限责任公司 | Optical fiber network system |
| CN102684733A (en) * | 2012-05-04 | 2012-09-19 | 西安亿力通微波科技有限公司 | Dual-network bidirectional orthogonal power synthesis system |
| CN102833010A (en) * | 2012-08-10 | 2012-12-19 | 武汉虹信通信技术有限责任公司 | Passive intermodulation improvement method for base station signals of mobile communication system |
| CN102833010B (en) * | 2012-08-10 | 2016-06-29 | 武汉虹信通信技术有限责任公司 | A kind of passive intermodulation ameliorative way of base stations in mobile communication system signal |
| CN105451105A (en) * | 2015-11-18 | 2016-03-30 | 佳律通信设备(上海)有限公司 | Optical transmitter and receiver access system based on multiple systems |
| CN106230508A (en) * | 2016-07-29 | 2016-12-14 | 四川天邑康和通信股份有限公司 | A kind of communicator in proximal fiber machine |
| CN106230508B (en) * | 2016-07-29 | 2018-09-25 | 四川天邑康和通信股份有限公司 | A kind of communication device in proximal fiber machine |
| CN106209245A (en) * | 2016-08-30 | 2016-12-07 | 烟台正维科技有限公司 | The serial communication network system connected based on optical fiber and 485 odd evens and method |
| CN106209245B (en) * | 2016-08-30 | 2018-10-12 | 烟台市正维通信技术有限公司 | The serial communication network system and method connected based on optical fiber and 485 odd evens |
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Application publication date: 20111214 |