CN201499169U - High integration level mobile communication optical fiber repeater station - Google Patents

High integration level mobile communication optical fiber repeater station Download PDF

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Publication number
CN201499169U
CN201499169U CN2009202279644U CN200920227964U CN201499169U CN 201499169 U CN201499169 U CN 201499169U CN 2009202279644 U CN2009202279644 U CN 2009202279644U CN 200920227964 U CN200920227964 U CN 200920227964U CN 201499169 U CN201499169 U CN 201499169U
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CN
China
Prior art keywords
unit
far
optical fiber
gain amplifier
numerical
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CN2009202279644U
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Chinese (zh)
Inventor
杨耀庭
王晓静
李雪峰
王志勇
甘洪文
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武汉虹信通信技术有限责任公司
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Priority to CN2009202279644U priority Critical patent/CN201499169U/en
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Publication of CN201499169U publication Critical patent/CN201499169U/en

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Abstract

The utility model discloses a high integration level mobile communication optical fiber repeater station, and relates to an optical fiber repeater station. The optical fiber repeater station comprises a base transceiver station (3), an optical fiber near-end device (1), one-eight optical fiber far-end devices (2) and an antenna feeder (4), which are arranged in front and back in turn, wherein the optical fiber near-end device (1) is composed of a near-end unit (10), a wireless modulation and demodulation unit (11) and a near-end power supply (12), the near-end power supply (12) is respectively connected with the near-end unit (10) and the wireless modulation and demodulation unit (11), the near-end unit (10) is connected with the wireless modulation and demodulation unit (11), the optical fiber far-end device (2) is composed of a far-end power supply (2), a far-end unit (20), and a duplexer (21), which are connected in front and back in turn. The optical fiber repeater station has high integration level, realizes the near-end and far-end communication without adding chains, can support multiple far end connection, improves the integrated and small-size of network devices, and is convenient to carry about, maintain and open.

Description

A kind of high integration mobile communication optical fiber repeater

Technical field

The utility model relates to a kind of optical fiber repeater, relates in particular to a kind of high integration mobile communication optical fiber repeater.

Background technology

Digital remote system, intermediate frequency far-drawing system from early stage mobile communication optical fiber repeater, radio frequency stretch system to up-to-date release, moving communicating field utilization optical fiber carry out the signal transmission as intermediary's medium and the application that distributes more and more.No matter analog optical fiber transmission technology or digital fiber transmission technology are all quite ripe in the development of moving communicating field.With respect to traditional radio frequency cable, the loss of optical cable is little, anti-interference good, cost is low, has effectively overcome the little defective of cable distribution radius.Along with the development of mobile communications network, more and more higher for the requirement of communication products miniaturization, intensification, energy-conservationization.Traditional mobile communication optical fiber repeater volume is relatively large, can not satisfy the demand for development of current communication products.

Summary of the invention

The purpose of this utility model just is to overcome the shortcoming and defect that prior art exists, and a kind of high integration mobile communication optical fiber repeater is provided.

The purpose of this utility model is achieved in that

From the angle of the cordless communication network development of demand, design a kind of optical fiber repeater (as different systems such as CDMA, GSM, DCS, WCDMA, CDMA2000) that can support flexibly that multiple communication standard inserts, improve system integration degree; Because the implementation method of each communication standard is identical, the utility model can be supported to articulate a plurality of far-ends, and has perfect monitoring and network management system, satisfies the requirement of operator for monitoring repeater agreement and function.

Concrete scheme is as follows:

The utility model comprises peripheral environment BTS (Base Transceiver Station, base transceiver station) and antenna feeder, is provided with proximal fiber device and 1~8 optical fiber far end device;

BTS, proximal fiber device, 1~8 optical fiber far end device are connected successively with the antenna feeder front and back;

Described proximal fiber device comprises near-end unit, wireless modem unit and near-end power supply; The near-end power supply is respectively near-end unit and wireless modem unit power supply; The near-end unit is connected with wireless modem unit, and radio frequency and monitoring function are realized in the near-end unit, and wireless modem unit cooperates the near-end unit to realize remote monitoring;

Near-end unit wherein is a kind of integrated embedded monitoring, gain amplification, opto-electronic conversion, power detection and intercommunicating comprehensive function unit.

Described optical fiber far end device comprises far-end unit, duplexer and far end supply; Far end supply is the far-end unit power supply, and far-end unit is connected with duplexer; Far-end unit is realized radio frequency and monitoring function, and duplexer is finished the synthetic of uplink and downlink signals, realizes full duplex work;

Far-end unit wherein is a kind of integrated embedded monitoring, low noise amplification, power amplification, opto-electronic conversion, power detection and intercommunicating comprehensive function unit.

Operation principle of the present utility model is:

Down link, proximal fiber device coupling BTS signal, carry out signal amplification, power control and Filtering Processing, be converted to light signal, by fiber medium, be transferred to the optical fiber far end device, the optical fiber far end device is reduced to radiofrequency signal with light signal, carry out signal amplification, power control and Filtering Processing, the feed-in antenna feeder.

Up link, the optical fiber far end device is from the antenna feeder received signal, carry out signal amplification, power control and Filtering Processing, be converted to light signal, by fiber medium, be transferred to the proximal fiber device, the proximal fiber device is reduced to radiofrequency signal with light signal, carry out signal and amplify and Filtering Processing, be coupled to BTS.

Proximal fiber device, optical fiber far end device are realized the function that remote relay transmission is amplified.And integrated embedded control and communication system satisfy the requirement to the monitoring repeater function.

The utlity model has following advantage and good effect:

1, the integrated degree height in repeater, proximal fiber device and optical fiber far end device are formed by three parts, and be simple in structure, easy to maintenance.

2, input and output power, light/electricity conversion, numerical control decay and fsk signal reiving/transmitting state can be monitored in the repeater, and fsk signal is coupled in the main signal, realize near, far-end communication and do not increase additional chain circuit.

3, the repeater can support how far hold connection; Can compatible CDMA, GSM, a plurality of communication standards such as DCS, WCDMA, CDMA2000; Improve intensification, the degree of miniaturization of the network equipment; Be convenient for carrying, maintenance and open-minded.

Take into full account debugging and engineering user demand when 4, the repeater is designed, comprise debug serial port, local serial ports and long-range serial ports, convenient production debugging and network management center manage; Support gate inhibition, position and outside expansion alarm.

Description of drawings

Fig. 1 is a structured flowchart of the present utility model;

Fig. 2 is the structured flowchart of near-end unit;

Fig. 3 is the structured flowchart of far-end unit;

Fig. 4 a, 4b, 4c, 4d, 4e, 4f, 4g be respectively the near-end unit the contour structures master, bow, back, left and right, upward view and stereogram;

Fig. 5 a, 5b, 5c, 5d, 5e, 5f, 5g be respectively far-end unit the contour structures master, bow, back, left and right, upward view and stereogram.

Wherein:

1-proximal fiber device,

10-near-end unit, 11-wireless modem unit, 12-near-end power supply;

2-optical fiber far end device,

The 20-far-end unit, 21-duplexer, 22-far end supply;

3-BTS;

The 4-antenna feeder.

Embodiment

Describe in detail below in conjunction with drawings and Examples:

One, overall

As Fig. 1, the utility model comprises (peripheral environment) BTS (3) and antenna feeder (4), is provided with proximal fiber device (1) and 1~8 optical fiber far end device (2);

Be connected successively before and after BTS3, proximal fiber device (1), 1~8 optical fiber far end device (2) and the antenna feeder (4);

Described proximal fiber device (1) comprises near-end unit (10), wireless modem unit (11) and near-end power supply (12); Near-end power supply (12) is respectively near-end unit (10) and wireless modem unit (11) power supply; Near-end unit (10) is connected with wireless modem unit (11), and near-end unit (10) realize radio frequency and monitoring function, and wireless modem unit (11) cooperates near-end unit (10) to realize remote monitoring.

The far end supply (22), far-end unit (20) and the duplexer (21) that connect successively before and after described optical fiber far end device 2 comprises; Far end supply (22) is responsible for power supply; Far-end unit (20) is realized radio frequency and monitoring function, and duplexer (21) is finished the synthetic of uplink and downlink signals, realizes full duplex work.

Above-mentioned wireless modem unit (11), near-end power supply (12) and far end supply (22), duplexer (21) are the common function piece.

Two, functional block

1, near-end unit (10)

As Fig. 2, near-end unit (10) comprise 3dB electric bridge (101), voltage-controlled attenuator (102), following gain amplifier (103), following band pass filter (104), following 3dB electric bridge (105), drive circuit for laser (106), PIN detector receiving circuit (107), last gain amplifier (108), last band pass filter (109), numerical-control attenuator (110), last first gain amplifier (111), last second gain amplifier (112), last 3dB electric bridge (113) debug serial port (114), local serial ports (115), long-range serial ports (116), microprocessor (117), first power detection (118), following low-pass filtering (119), FSK modulation (120), WDM (121), last low-pass filtering (122) and second power detection (123);

1. down link

To proximal fiber device (1), enter near-end unit (10) from the direct-coupled radio signal transmission of BTS3,3dB electric bridge (101) is divided into two-way with signal averaging;

Connect to form down link successively before and after 3dB electric bridge (101), voltage-controlled attenuator (102), following gain amplifier (103), following band pass filter (104), following 3dB electric bridge (105) and the drive circuit for laser (106).

Downstream signal is converted to light signal output through down link.

2. up link

As Fig. 2, optical signal transmission enters near-end unit (10) to proximal fiber device (1), and PIN detector receiving circuit (107) is converted to radiofrequency signal with light signal;

PIN detector receiving circuit (107), go up gain amplifier (108), go up band pass filter (109), numerical-control attenuator (110), last first gain amplifier (111), last second gain amplifier (112), upward 3dB electric bridge (113) and 3dB electric bridge (101) front and back connect to form up link successively;

Upward signal process up link reverse coupled is to BTS (3).

3. monitor and webmaster

Microprocessor (117) in the near-end unit (10) is connected with first power detection (118), drive circuit for laser (106), PIN detector receiving circuit (107) and second power detection (123) respectively and carries out state acquisition; Microprocessor (117) is connected with voltage-controlled attenuator (102), drive circuit for laser (106) and numerical-control attenuator (110) respectively and carries out State Control, to realize input ALC (automatic electric-level control), laser APC (automated power control) and ATT monitoring functions such as (level decay).

Near-end unit (10) carries out data communication by FSK modulation (120), and following low-pass filtering (119) and last low-pass filtering (122) are respectively the filtered external circuit of FSK modulation (120);

Near-end unit (10) also comprises debug serial port (114), local serial ports (115), long-range serial ports (116) and gate inhibition, position, the external alarm (124) that is connected with microprocessor (117) respectively; The debugging of debug serial port (114) supply equipment is used, local serial ports (115) uses for network management center's local monitor, the external wireless modem unit of long-range serial ports (116) is used for network management center's remote monitoring, and gate inhibition, position, external alarm (124) are for the actual use of engineering.

2, far-end unit (20)

As Fig. 3, far-end unit (20) comprises low noise amplifier (201), last first match circuit (202), last band pass filter (203), last first gain amplifier (204), last second match circuit (205), last numerical-control attenuator (206), last second gain amplifier (207), last 3dB electric bridge (208), drive circuit for laser (209), PIN detector receiving circuit (210), following first gain amplifier (211), following band pass filter (212), following first numerical-control attenuator (213), following second gain amplifier (214), following second numerical-control attenuator (215), following the 3rd gain amplifier (216), driving amplifier (217), final power amplifier (218), following first power detection (219), following second power detection (220), debug serial port (221), local serial ports (222), microprocessor (223), low-pass filtering (224), last power detection (225), FSK modulation (226), low-pass filtering (227), WDM (228);

1. down link

Optical signal transmission enters far-end unit (20) to optical fiber far end device (2), and PIN detector receiving circuit (210) is converted to radiofrequency signal with light signal;

PIN detector receiving circuit (210), following first gain amplifier (211), following band pass filter (212), following first numerical-control attenuator (213), gain amplifier (214), following second numerical-control attenuator (215), following second gain amplifier (216), driving amplifier (217) and power amplifier (218) front and back connect to form down link successively;

Downstream signal outputs to duplexer (21) through down link, finally outputs to antenna feeder (4).

2. up link

To optical fiber far end device (2), enter duplexer (21) from the upward signal spatial transmission of BTS (3) emission, after duplexer (21) filtering, enter far-end unit (20);

Low noise amplifier (201), match circuit (202), go up band pass filter (203), last first gain amplifier (204), match circuit (205), go up numerical-control attenuator (206), last second gain amplifier (207), upward 3dB electric bridge (208), drive circuit for laser (209) front and back connect to form up link successively;

Upward signal is converted to light signal output through up link.

3. monitor and webmaster

Microprocessor (223) in the far-end unit (20) is respectively with last power detection (225), drive circuit for laser (209), PIN detector receiving circuit (210), first power detection (219) and time second power detection (220) are connected and carry out state acquisition down;

Microprocessor (223) is respectively with last numerical-control attenuator (206), drive circuit for laser (209), first numerical-control attenuator (213) is connected with following second numerical-control attenuator (215) and carries out State Control down, to realize down output power detection, the detection of descending standing-wave ratio, output ALC (automatic electric-level control), laser APC (automated power control) and ATT monitoring functions such as (level decay).

Far-end unit (20) carries out data communication by FSK modulation (226), and following low-pass filtering (224) and last low-pass filtering (227) are the filtered external circuit of FSK;

Far-end unit (20) also comprises debug serial port (221), local serial ports (222) and gate inhibition, position, the external alarm (229) that is connected with microprocessor (223) respectively; The debugging of debug serial port (221) supply equipment is used, and local serial ports (222) uses for network management center's local monitor; Gate inhibition, position, external alarm (229) are for the actual use of engineering.

Three, structure implementation

1, near-end unit (10)

As Fig. 4 a, 4b, 4c, 4d, 4e, 4f, 4g, near-end unit (10) uses the single-deck mounting means, separately it is not used enclosed construction, single-deck is directly fixed on the U type die sinking box body by ground connection pressing, whole U type die sinking box body is installed in the 1U frame, utilizes sub-frame cover plate shielding outer signals.Near-end unit (10) radio frequency down link, control unit, radio frequency up link parallel arranged, uplink downlink leaves enough space lengths, satisfying insulation request, and need not unnecessary structural member.

2, far-end unit (20)

As Fig. 5 a, 5b, 5c, 5d, 5e, 5f, 5g, far-end unit (20) single-deck structure is divided into She Pinxiaoxinhao ﹠amp; Control unit and power amplifier large-signal two parts, the centre connects by bouncing pilotage, also uses the single-deck mounting means, separately it is not used enclosed construction.Be different from common radio frequency single-deck, the RF small signals amplifying device all is positioned over the PCB back side, is imbedded in the structure box body; The control unit device layout is in the PCB front.Single-deck is fixed on the metal structure box body by screw, and power amplifier is partly installed metallic shield, isolates outer signals.

Claims (3)

1. a high integration mobile communication optical fiber repeater comprises peripheral environment BTS (3) and antenna feeder (4);
It is characterized in that:
Be provided with proximal fiber device (1) and 1~8 optical fiber far end device (2);
Be connected successively before and after BTS (3), proximal fiber device (1), 1~8 optical fiber far end device (2) and the antenna feeder (4);
Described proximal fiber device (1) comprises near-end unit (10), wireless modem unit (11) and near-end power supply (12); Near-end power supply (12) is connected with wireless modem unit (11) with near-end unit (10) respectively; Near-end unit (10) is connected with wireless modem unit (11);
The far end supply (22), far-end unit (20) and the duplexer (21) that connect successively before and after described optical fiber far end device (2) comprises.
2. by the described a kind of high integration mobile communication optical fiber repeater of claim 1, it is characterized in that near-end unit (10):
Connect to form down link successively before and after 3dB electric bridge (101), voltage-controlled attenuator (102), following gain amplifier (103), following band pass filter (104), following 3dB electric bridge (105) and the drive circuit for laser (106);
PIN detector receiving circuit (107), go up gain amplifier (108), go up band pass filter (109), numerical-control attenuator (110), last first gain amplifier (111), last second gain amplifier (112), upward 3dB electric bridge (113) and 3dB electric bridge (101) front and back connect to form up link successively;
Microprocessor (117) in the near-end unit (10) is connected with first power detection (118), drive circuit for laser (106), PIN detector receiving circuit (107) and second power detection (123) respectively; Microprocessor (117) is connected with voltage-controlled attenuator (102), drive circuit for laser (106) and numerical-control attenuator (110) respectively;
Near-end unit (10) also comprises debug serial port (114), local serial ports (115), long-range serial ports (116) and gate inhibition, position, the external alarm (124) that is connected with microprocessor (117) respectively.
3. by the described a kind of high integration mobile communication optical fiber repeater of claim 1, it is characterized in that far-end unit (20):
PIN detector receiving circuit (210), following first gain amplifier (211), following band pass filter (212), following first numerical-control attenuator (213), gain amplifier (214), following second numerical-control attenuator (215), following second gain amplifier (216), driving amplifier (217) and power amplifier (218) front and back connect to form down link successively;
Low noise amplifier (201), match circuit (202), go up band pass filter (203), last first gain amplifier (204), match circuit (205), go up numerical-control attenuator (206), last second gain amplifier (207), upward 3dB electric bridge (208), drive circuit for laser (209) front and back connect to form up link successively;
Microprocessor (223) in the far-end unit (20) is respectively with last power detection (225), drive circuit for laser (209), PIN detector receiving circuit (210), first power detection (219) is connected with following second power detection (220) down;
Microprocessor (223) is respectively with last numerical-control attenuator (206), drive circuit for laser (209), first numerical-control attenuator (213) is connected with following second numerical-control attenuator (215) down;
Far-end unit (20) also comprises debug serial port (221), local serial ports (222) and gate inhibition, position, the external alarm (229) that is connected with microprocessor (223) respectively.
CN2009202279644U 2009-09-08 2009-09-08 High integration level mobile communication optical fiber repeater station CN201499169U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580753A (en) * 2013-10-31 2014-02-12 南京泰通科技有限公司 Optical fiber repeater with unvarnished transmission function and signal transmission method
CN104393929A (en) * 2014-12-02 2015-03-04 苏州市欧博锐自动化科技有限公司 Optical transmitter based on unit gain second-order high-pass filter circuit
CN104393928A (en) * 2014-12-02 2015-03-04 苏州市欧博锐自动化科技有限公司 Second-order LC elliptical low-pass filter circuit based optical transmitter
CN104410461A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on normalizing filtering circuit
CN104410459A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on first-order band-pass filter circuit
CN104410460A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on first-order bypass filter circuit
CN104410455A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on Sallen-Key band-pass filtering circuit
CN104410458A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on second-order active low-pass filtering circuit
CN104410457A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on simple band-pass filtering circuit
CN104486001A (en) * 2014-12-02 2015-04-01 苏州市欧博锐自动化科技有限公司 Optical transmitter based on second-order high-pass filter circuit
CN104660343A (en) * 2014-12-02 2015-05-27 苏州市欧博锐自动化科技有限公司 Optical sender based on active narrow band filter circuit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580753A (en) * 2013-10-31 2014-02-12 南京泰通科技有限公司 Optical fiber repeater with unvarnished transmission function and signal transmission method
CN103580753B (en) * 2013-10-31 2017-01-18 南京泰通科技股份有限公司 Signal transmission method for optical fiber repeater with unvarnished transmission function
CN104393929A (en) * 2014-12-02 2015-03-04 苏州市欧博锐自动化科技有限公司 Optical transmitter based on unit gain second-order high-pass filter circuit
CN104393928A (en) * 2014-12-02 2015-03-04 苏州市欧博锐自动化科技有限公司 Second-order LC elliptical low-pass filter circuit based optical transmitter
CN104410461A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on normalizing filtering circuit
CN104410459A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on first-order band-pass filter circuit
CN104410455A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on Sallen-Key band-pass filtering circuit
CN104410458A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on second-order active low-pass filtering circuit
CN104410457A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on simple band-pass filtering circuit
CN104486001A (en) * 2014-12-02 2015-04-01 苏州市欧博锐自动化科技有限公司 Optical transmitter based on second-order high-pass filter circuit
CN104660343A (en) * 2014-12-02 2015-05-27 苏州市欧博锐自动化科技有限公司 Optical sender based on active narrow band filter circuit
CN104410460A (en) * 2014-12-02 2015-03-11 苏州市欧博锐自动化科技有限公司 Optical transmitter based on first-order bypass filter circuit

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