CN101170838B - Radio carrier resource configuration system based on optical switching - Google Patents
Radio carrier resource configuration system based on optical switching Download PDFInfo
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- CN101170838B CN101170838B CN2007100533928A CN200710053392A CN101170838B CN 101170838 B CN101170838 B CN 101170838B CN 2007100533928 A CN2007100533928 A CN 2007100533928A CN 200710053392 A CN200710053392 A CN 200710053392A CN 101170838 B CN101170838 B CN 101170838B
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Abstract
The invention discloses a wireless carrier resources allocation system based on optical switch and relates to a wireless carrier resources allocation system. The invention includes a base station (100) and a coupler (200) and is equipped with an optical fiber near-end machine (300), an optical switch center (500) and an optical fiber remote machine (400). The base station (100), the coupler (200), the optical fiber near-end machine (300), the optical switching center (500) and the optical fiber remote machine (400) are connected in turn. The invention decreases the carrier dispatching system complexity, increases the flexibility; increases the carrier resources reasonable deployment, obviously improves the base station carrier resources utilization rate and is applicable to temporary carrier resources dispatching and management in large scale meeting place, large scale stadium, central business district and other regular or irregular hot places.
Description
Technical field
The present invention relates to a kind of radio carrier resource configuration system, relate in particular to a kind of radio carrier resource configuration system based on the light exchange.
Background technology
Increasingly sophisticatedization of cordless communication network increases day by day to the demand of carrier resource, and some sub-districts and large-scale public place are easy in the specific period traffic to take place and stop up.For making full use of the wireless carrier resource, improve network resource utilization, need be used from transferring a plurality of base stations and repeater on every side, carry out the carrier resource scheduling.Using at present is the carrier tank technology more widely.The carrier tank system is on the optical fiber repeater basis, and unit such as increase switching, monitoring constitute.This system can carry for idle base station carrier provides radio frequency, and by the comprehensive network management center, real-time or timer-triggered scheduler carrier frequency resource arrives high communication requirement area, to absorb this area's traffic.Existing carrier resource dispatching patcher, the base station is connected by radio-frequency (RF) switch with the repeater, utilizes software control, and the diverter switch state carries out carrier wave and selects.But it has inevitable shortcoming: each base station all is continuous with the repeater of fixed qty, dispatches dumb; If realize scheduling more flexibly, each repeater all and between the base station is coupled together by optical fiber, will take a large amount of optical fiber again, cause the waste of fiber resource.
Summary of the invention
Purpose of the present invention just is to overcome the above shortcoming and defect that prior art exists, and a kind of radio carrier resource configuration system based on the light exchange is provided.This system will concentrate and carries out the exchange and the selection of information source by light switching center after will being in each different local base station carrier sources and moving the scheduling machine room to by optical fiber, cover to each optical fiber remote termination through optic fibre extension again.
The object of the present invention is achieved like this:
Compare with traditional carrier tank system, the present invention has increased a light switching center (500).
Specifically, as Fig. 1,2, the present invention includes base station (100) and coupler (200);
Be provided with proximal fiber machine (300), light switching center (500) and optical fiber remote termination (400);
Base station (100), coupler (200), proximal fiber machine (300), light switching center (500) and optical fiber remote termination (400) are connected successively;
Light switching center (500) wherein comprises preceding broadband light coupler (510), optical switch matrix unit (520) with shunt function that connect successively and has the back broadband light coupler (540) that closes the road function that optical switch matrix unit (520) also connect monitoring unit (530) and controlled by it;
Down link: proximal fiber machine (300) process coupler (200) is (100) introducing carrier signal from the base station, moves light switching center (500) to through optical fiber; The control of light switching center (500) by monitoring unit (530) is made up and is selected carrier link, covers to each optical fiber remote termination (400) through optic fibre extension again;
Up link: optical fiber remote termination (400) receives the signal from travelling carriage, delivers to light switching center (500) through optical fiber, passes to corresponding proximal fiber machine (300) through optical fiber again, exports base station (100) to by coupler (200) again.
Described base station (100) comprises the 1st～n base station (110～1n0);
Described coupler (200) comprises the 1st～n coupler (210～2n0);
Described proximal fiber machine (300) comprises the 1st～n proximal fiber machine (310～3n0);
Described optical fiber remote termination (400) comprises the 1st～n optical fiber remote termination (410～4m0);
Broadband light coupler (510) comprises the preceding broadband light coupler (511～51n) of the 1st～n before described;
Described back broadband light coupler (540) comprises broadband light coupler (541～54m) behind the 1st～m.
Wherein, n, m are natural number.The occurrence of n is decided by the optional number of carriers of reality, base station configuration and network optimization principle; The end that the m value is caused by the introducing of gain, transmission path loss and the system of system make an uproar lifting what etc. the factor decision.Be example with the GSM900 base station, the most basic, altogether frequency is 124, removes frequency (10) in the protection frequency band and avoids larger interference and the adjacent frequency removed, can introduce number of carriers and be (124-10)/2=57 (individual).If every base station is the configurations of 6 carrier waves, then can introduces 57/6=9.5 and get 10 base station signals, then n＜10; Generally speaking, with gsm system in the engineering application experience, m≤8.
Base station (100) selects for use the base station of standards such as existing GSM, WCDMA, TD-SCDMA or CDMA2000 all can.
Coupler (200) is conventional radio-frequency (RF) coupler product, and its degree of coupling (dB) is determined by practical engineering application.
Proximal fiber machine (300) and optical fiber remote termination (400) can adopt present optical fiber repeater near-end and optical fiber repeater far-end to substitute.
Preceding broadband light coupler (510) and back broadband light coupler (540) adopt 1 * N broadband light coupler of conventional single mode double window mouth to realize, N is determined by the quantity of optical fiber remote termination (400) and the monitor mode of employing.
Operation principle of the present invention is:
Suppose n=4, m=4, light switching center (500) is 4 * 4 (i.e. 4 optical fiber remote terminations of 4 base station bands).
Each proximal fiber machine (300) is introduced source signal by coupler (200), and to light switching center (500), preceding broadband light coupler (510) is divided into 4 * 5 the tunnel with light signal, comprises 16 tunnel carrier signals and 4 road pilot signals through Optical Fiber Transmission; Monitoring unit (530) can be controlled optical switch matrix unit (520), and 16 road carrier wave light signals are carried out the routing combination, and broadband light coupler (540) after the warp by optical fiber, is transferred to each optical fiber remote termination (400) again.The carrier resource of proximal fiber machine (300) can cover at any a plurality of far-ends.
The present invention has following advantage and good effect:
1, carries out the combination and the selection of link in the light territory, greatly reduce the carrier dispatching system complexity, strengthened system flexibility, also avoided the waste of fiber resource.
2, by the dynamic dispatching and the management of carrier resource, strengthened the rational allocation of carrier resource, obviously improved the utilance of base station carrier source.
3, be applicable to the interim carrier resource scheduling and the management of regular or irregular hot zones such as large-scale meeting-place, large-scale stadium, shopping centre; The carrier resource scheduling and the management in traffic peak area also appear applicable to timesharing, as learning region (service area) and living area in campus, the large scale industry garden.
Description of drawings
Fig. 1 is a block diagram sketch of the present invention;
Fig. 2 is a block diagram of the present invention;
Fig. 3 is that light switching center and optical fiber are near, one of remote termination communication topology figure (is example with 4 optical fiber remote terminations of 3 base station bands);
Fig. 4 is that light switching center and optical fiber are near, two (are example with 4 optical fiber remote terminations of 3 base station bands) of remote termination communication topology figure;
Fig. 5 is the block diagram (is example with 4 optical fiber remote terminations of 4 base station bands) that light switching center communicates by letter with the proximal fiber machine by wired mode;
Fig. 6 is a light switching center by the block diagram (is example with 4 optical fiber remote terminations of 4 base station bands) that wired mode is near with optical fiber, remote termination is communicated by letter.
Wherein:
The 100-base station, 110～1n0-(1～n) base station;
The 200-coupler, 210～2n0-(1～n) coupler;
300-proximal fiber machine, 310～3n0-(1～n) proximal fiber machine;
400-optical fiber remote termination, 410～4n0-(1～m) optical fiber remote termination;
500-light switching center,
Broadband light coupler before the 510-, 511～51n-(1～n) preceding broadband light coupler;
520-optical switch matrix unit;
The 530-monitoring unit,
531-circuit unit (FSK) 532-control unit (MCU)
533-analog to digital conversion unit (ADC)
Broadband light coupler behind the 540-, 541～54m-(1～m) back broadband light coupler;
550-photoelectric conversion units (PD);
560-electro-optical conversion unit (LD);
570-2 * 4 optical couplers;
580-2 * 8 optical couplers.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
One, overall
1, at first, carry out frequency planning, principle is to be subjected to prime coverage area (repeater far-end covering area) that interference-free carrier frequency is provided.As to be subjected to prime coverage area be not the blind area, and have the control carrier frequency, needs according to actual conditions, delete the control carrier frequency and the adjacent carrier frequency thereof that itself exist, and all the other frequencies can be used as at the frequency that used by prime coverage area.
2, compare with traditional carrier dispatching system, the present invention has increased a light switching center (500), and whole system mainly comprises proximal fiber machine (300), light switching center (500) and optical fiber remote termination (400) three parts.
Two main difficult points are arranged on the technology of the present invention: the compensation of the Insertion Loss of light path causes the end lifting of making an uproar; Light switching center (500) communicates by letter with nearly remote equipment.
1) loss on the light path is compensated, following two kinds of schemes is arranged:
1. for optical fiber remote termination (400), increase CD, power amplifier and LNA gain, to compensate the loss that light path is brought.This scheme realizes being easier to, and lifting is very big but make an uproar in the end that brings.
2. after optical device, especially optical switching technique side open up to a certain degree, can consider another kind of scheme, adopt SOA semiconductor optical amplifier switch (being called for short the SOA optical switch) to control turning on and off of light path.This scheme has many good qualities: SOA optical switch switch speed is higher; When the SOA optical switch is connected, can amplifying optical signals, signal is carried out gain compensation, when the SOA optical switch turn-offed, owing to there is high extinction ratio, light path was in off state.Adopt this optical switch, certain gain is arranged, make the increment of optical transmission integrated module noise factor reduce, reduce the lifting of making an uproar at the bottom of the uplink and downlink.
On the state-of-the art basis, selecting to compensate differential loss by the gain of increase far-end is relative more feasible scheme.
When 2) conducting transmission line switches, for avoiding call drop, some the time, light switching center (500) need communicate with nearly remote equipment, communication mode has following two kinds of schemes:
1. based on the nearly far-end communication of existing optical fiber repeater, increase communicating by letter of light switching center (500) and optical fiber remote termination (400), thus the communicating by letter of realization light switching center (500) and far-end, as shown in Figure 3.This kind communication implementation can keep existing monitoring system, only need expand getting final product it accordingly, can make full use of existing resource, pares down expenses.
2. monitoring is concentrated on light switching center (500), proximal fiber machine (300), optical fiber remote termination (400) and light switching center (500) are carried out unified monitoring, as shown in Figure 4.This kind mode can be considered as main frame to light switching center (500), and proximal fiber machine (300) and optical fiber remote termination (400) are considered as slave.This kind mode topological structure is fairly simple, and bottom monitoring and upper strata webmaster are realized being easier to.
Above-mentioned two kinds of monitor modes, each has something to recommend him, can select for use flexibly according to actual conditions.
3, on the monitoring bottom layer realization, light switching center (500) is connected with proximal fiber machine (300) by wired mode, as shown in Figure 5.
In light switching center (500), be provided with photoelectric conversion units (PD) (550), electro-optical conversion unit (LD) (560) and 2 * 4 optical couplers (570) again, monitoring unit (530) comprises circuit unit (FSK) (531), control unit (MCU) (532) and analog to digital conversion unit (ADC) (533).
Be modulated to example with FSK, n=4, m=4.
At up direction, the monitoring electrical modulation signal is by electro-optical conversion unit (LD) (560), through 2 * 4 optical couplers (570) and carrier wave light signal together,, communicates with it to each near-end machine by Optical Fiber Transmission, thereby realizes and the communicating by letter of remote termination;
At down direction, the monitoring electrical modulation signal is passed through photoelectric conversion units (PD) (550) again through 2 * 4 optical couplers (570), is demodulated to the signal of telecommunication, communicates with light switching center (500).
Wired mode is communicated by letter, though realize relatively complexity, communication reliability is guaranteed; In addition, electro-optical conversion, light-to-current inversion and optical coupling will increase corresponding cost; 2 * 4 optical couplers (570) that connect the repeater near-end need to increase a coupling aperture, make the differential loss of light path further increase, the problem that will consider when also being system budget.
4, employing is in the implementation of light switching center (500) centralized monitor, as shown in Figure 6,2 * 4 optical couplers (570) that are about among Fig. 5 change 2 * 8 optical couplers (580) into, because increasing the optocoupler of monitoring unit (530) heals up, far-end can be included in into, carry out the centralized monitor of nearly far-end.
Specifically, in light switching center (500), be provided with photoelectric conversion units (PD) (550), electro-optical conversion unit (LD) (560) and 2 * 8 optical couplers (580), monitoring unit (530) comprises FSK circuit unit (531), control unit (MCU) (532) and analog to digital conversion unit (533).
Two, relevant parts
1, optical switch matrix unit (520)
Optical switch matrix unit (520) adopts 1 * N optical coupler to add 1 * 1 optical switch and realizes.Optical switch is selected the micro-mechanical-optical switch matrix of present extensive use for use; Or tool SOA semiconductor optical amplifier with broad prospects for development switch matrix.
2, monitoring unit (530)
1) circuit unit (FSK) (531)
Circuit unit (FSK) (531) is mainly used in provides communication reliably between light switching center (500), proximal fiber machine (300) and the optical fiber remote termination (400).Circuit unit (FSK) (531) can be selected chip commonly used for use, realizes such as CC1000 and peripheral circuit thereof.
2) control unit (MCU) (532)
(function of control unit (MCU) (532) is that various data are handled.The device of its core is high performance single-chip microcomputer.
3) analog to digital conversion unit (ADC) (533)
Analog to digital conversion unit (ADC) (533) is used for the radiofrequency signal power that collects is carried out digitlization, exports to control unit (MCU) (532).Adopt AD conversion chip commonly used to get final product.
3, photoelectric conversion units (PD) (550)
Photoelectric conversion units (PD) (550) is used for converting the monitor optical signal to the signal of telecommunication.Can select PIN photodiode commonly used for use.
4, electro-optical conversion unit (LD) (560)
Electro-optical conversion unit (LD) (560) is used for converting the monitoring signal of telecommunication to light signal.Select for use FP commonly used or Distributed Feedback Laser to realize.
5,2 * 4 optical couplers (570)
2 * 4 optical couplers (570) are used for the shunt of light pilot signal and close the road.Adopt 2 * 4 fiber couplers of conventional single mode double window mouth to get final product.
6,2 * 8 optical couplers (580)
2 * 8 optical couplers (580) are used for the shunt of light pilot signal and close the road.Adopt 2 * 8 fiber couplers of conventional single mode double window mouth to get final product.
Claims (1)
1. the radio carrier resource configuration system based on the light exchange comprises base station (100) and coupler (200); It is characterized in that:
Be provided with proximal fiber machine (300), light switching center (500) and optical fiber remote termination (400);
Base station (100), coupler (200), proximal fiber machine (300), light switching center (500) and optical fiber remote termination (400) are connected successively;
Light switching center (500) wherein comprises preceding broadband light coupler (510), optical switch matrix unit (520) with shunt function that connect successively and has the back broadband light coupler (540) that closes the road function that optical switch matrix unit (520) also connect monitoring unit (530) and controlled by it;
Down link be proximal fiber machine (300) through coupler (200) from the base station (100) introduce carrier signal, move light switching center (500) to through optical fiber; The control of light switching center (500) by monitoring unit (530) is made up and is selected carrier link, covers to each optical fiber remote termination (400) through optic fibre extension again;
Up link is that optical fiber remote termination (400) receives the signal from travelling carriage, delivers to light switching center (500) through optical fiber, passes to corresponding proximal fiber machine (300) through optical fiber again, exports base station (100) to by coupler (200) again;
In light switching center (500), be provided with photoelectric conversion units (550), electro-optical conversion unit (560) and 2 * 4 optical couplers (570), monitoring unit (530) comprises circuit unit (531), control unit (532) and analog to digital conversion unit (533);
At up direction, the monitoring electrical modulation signal is by electro-optical conversion unit (560), through 2 * 4 optical couplers (570) and carrier wave light signal together,, communicates with it to each near-end machine by Optical Fiber Transmission, thereby realizes and the communicating by letter of remote termination;
At down direction, the monitoring electrical modulation signal is passed through photoelectric conversion units (550) again through 2 * 4 optical couplers (570), is demodulated to the signal of telecommunication, communicates with light switching center (500);
In light switching center (500), be provided with photoelectric conversion units (550), electro-optical conversion unit (560) and 2 * 8 optical couplers (580), monitoring unit (530) comprises circuit unit (531), control unit (532) and analog to digital conversion unit (533).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100533928A CN101170838B (en) | 2007-09-28 | 2007-09-28 | Radio carrier resource configuration system based on optical switching |
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| CN2007100533928A CN101170838B (en) | 2007-09-28 | 2007-09-28 | Radio carrier resource configuration system based on optical switching |
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| CN101170838A CN101170838A (en) | 2008-04-30 |
| CN101170838B true CN101170838B (en) | 2010-09-15 |
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| CN107682086A (en) * | 2016-08-02 | 2018-02-09 | 成都奥克特科技有限公司 | Optical fiber repeater station transit working method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122971A2 (en) * | 2000-02-03 | 2001-08-08 | Alcatel | Data channel reservation in optical burst-switched networks |
| CN1601950A (en) * | 2003-09-23 | 2005-03-30 | 英特尔公司 | Method and system to recover resources in the event of data burst loss within wdm-based optical-switched networks |
| CN1741417A (en) * | 2004-08-27 | 2006-03-01 | 华为技术有限公司 | Apparatus capable of constituting multi-mobile communication equipment and constituted mobile communication equipment thereof |
| CN1764295A (en) * | 2004-10-20 | 2006-04-26 | 厦门厦华特力通科技有限公司 | Intelligent allocating system for mobile communication network resource |
| CN2867728Y (en) * | 2005-12-07 | 2007-02-07 | 北京邦讯技术有限公司 | SCDMA fiber-optical high-frequency-amplification station |
-
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- 2007-09-28 CN CN2007100533928A patent/CN101170838B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122971A2 (en) * | 2000-02-03 | 2001-08-08 | Alcatel | Data channel reservation in optical burst-switched networks |
| CN1601950A (en) * | 2003-09-23 | 2005-03-30 | 英特尔公司 | Method and system to recover resources in the event of data burst loss within wdm-based optical-switched networks |
| CN1741417A (en) * | 2004-08-27 | 2006-03-01 | 华为技术有限公司 | Apparatus capable of constituting multi-mobile communication equipment and constituted mobile communication equipment thereof |
| CN1764295A (en) * | 2004-10-20 | 2006-04-26 | 厦门厦华特力通科技有限公司 | Intelligent allocating system for mobile communication network resource |
| CN2867728Y (en) * | 2005-12-07 | 2007-02-07 | 北京邦讯技术有限公司 | SCDMA fiber-optical high-frequency-amplification station |
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Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co., Ltd |
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