CN105141363A - Optical fiber distribution system and method realizing multipath access of different-address information sources - Google Patents
Optical fiber distribution system and method realizing multipath access of different-address information sources Download PDFInfo
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Abstract
The invention discloses an optical fiber distribution system realizing multipath access of different-address information sources. The optical fiber distribution system comprises a plurality of access units, at least one expansion unit respectively connected with each access unit, and at least one far-end unit connected with the expansion units, wherein the access units respectively support a plurality of communication standards of different service providers; in a down link, the access units respectively add corresponding communication standard labels to received radiofrequency signals and send the radiofrequency signals to each corresponding expansion unit through an optical fiber; the expansion units respectively carry out data processing on the received down optical signals sent by the plurality of access units supporting different service providers and send the optical signals to the each corresponding far-end unit through optical fibers; and the far-end units respectively process the received optical signals so as to convert the optical signals into radiofrequency signals of the corresponding communication standards, thereby enabling the radiofrequency signals to be sent to users. The invention further provides a communication method of the optical fiber distribution system realizing multipath access of different-address information sources.
Description
Technical field
The present invention relates to electronic device field, particularly relate to a kind of optical fiber distribution system and the method that realize the multichannel access of different location information source.
Background technology
China telecommunication is through development long-term for many years, define 2G/3G/4G gradually and the situation of depositing, mobile communication signal transmission is all transmitted by certain frequency, and the frequency that three large operators have and network formats are not quite similar, in the market in the standard used respectively:
China Mobile: GSM800, GSM1800, TD-SCDMA, TD-LTE;
CHINAUNICOM: GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE;
China Telecom: CDMA, CDMA2000, TD-LTE, FDD-LTE.
Above-mentionedly also do not comprise each generation excessive standard of producing in speech process of the communication technology, be not difficult to find out that china telecommunication standard just is under arms many thus, each operator differs based on the frequency used under various communication standard is just more numerous and diverse, this communication present situation makes the construction plan of quorum sensing inhibitor complicated, and difficulty of construction is large, easy formation coverage hole and ping-pong, cover difficulty and the cost of signal optimizing, cause public resource to waste after also increasing.
In this case, multi-service compartment system (MultiserviceDistributedAccessSystemSolution, MDAS) arise at the historic moment, MDAS adopts netting twine/optical fiber as transmission medium, support Duo Jia operator, support multi-modulation scheme, multicarrier, and integrated WLAN (WirelessLAN, WLAN (wireless local area network)) system, one step solves voice and data traffic requirement, improve the accuracy of quorum sensing inhibitor, also the complexity of quorum sensing inhibitor engineering and the difficulty of construction maintenance is greatly reduced, compared with traditional analog compartment system, possesses mixed networking simultaneously, delay compensation, automatic carrier track, make an uproar the feature such as low in the up end.
MDAS forms primarily of access unit (MAU/MU), expanding element (MEU/EU) and far-end unit (MRU/RU).
MDAS basic functional principle is as follows:
After the signal of base station/RRU is linked into system by down link (base station---> user): MU, digital processing packing is carried out to signal and form digital signal, then by opto-electronic conversion, digital signal is converted to optical signals Optical Fiber Transmission to EU; The signal that MU is come by Optical Fiber Transmission processes by EU, then by Optical Fiber Transmission to RU; The signal transacting that EU transmits by RU is gone out by antenna cover, is transferred to user after amplifying.
Up link (user---> base station): after the information that user sends out is received by RU, RU to signal process again by Optical Fiber Transmission to EU; Light signal is formed by opto-electronic conversion after the signal that all RU transmit by EU carries out digitized processing packing, then by Optical Fiber Transmission to MU; MU, by after the digital signal of EU packing reduction, is transferred to base station/RRU.
Nowadays multi-service optical fiber distribution system market used the most basic structure composition as shown in Figure 1, but this basic structure cannot meet actual application demand, and waste resource, thus derive following several concentrated networking mode used in practical application scene by the system basic structure of multi-service optical fiber distribution system:
1) star-like networking (as shown in Figure 2);
2) chrysanthemum type networking (as shown in Figure 3);
3) mixed type networking (as shown in Figure 4).
The essence of the 3 kinds of networking modes be made up of basic structure is the extended capabilities utilizing EU, and EU supports the expansion of RU thus realizes star-like networking mode; EU supports the expansion cascading of EU thus realizes chrysanthemum type networking mode; Two kinds of extended capability set use thus realize mixed networking mode.
The standard that the multi-service optical fiber distribution system of above-mentioned three kinds of networking modes is supported and frequency range determine by a main access unit (MU), when MU only supports standard and the frequency range of China Mobile 2G/3G/4G, no matter the multi-service optical fiber distribution system of which kind of networking mode also can only cover and process the communication service of China Mobile.Supporting that as needed the business demand of other operators just needs to replace whole multi-service optical fiber distribution system, comprising MU, EU and RU, or install a whole set of support standard of other operators and the multi-service optical fiber distribution system of frequency range again additional.Such as: on the former basis having covered China Mobile's signal, expand UNICOM and telecommunication signal covers, realize in the following manner:
Add respectively and support that UNICOM and the standard of telecommunications and the optical fiber distribution system of frequency range are in order to cover respective signal, so realize full signal covering and just need amount to 3 unjacketed optical fiber compartment systems, system rectification schematic diagram as shown in Figure 5.
Above-mentioned implementation needs to arrange the above compartment system of two covers, realizes the whole network and covers and all need again or repeatedly wholly-owned input, cover quantities and also will be multiplied, cause the wasting of resources.
Visible, carry out standard expansion to realize the multichannel access of different location information source to the region using existing multi-service optical fiber distribution system to cover, quantities and cost can be multiplied, original serious waste of resources.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of optical fiber distribution system and the method that realize the multichannel access of different location information source, effectively can solve multi-service optical fiber distribution system and carry out needing overlapping investment when communication standard expansion covers with the whole network afterwards, repeats the problem of constructing.
Embodiments provide a kind of optical fiber distribution system realizing the multichannel access of different location information source, comprise multiple access unit, connect at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, wherein, access unit described in each supports multiple communication standards of different operators respectively;
In the downlink, expanding element described in corresponding each is sent to by optical fiber after the radiofrequency signal received is added corresponding communication standard label by access unit described in each; Expanding element described in each all sends to far-end unit described in corresponding each by optical fiber after the light signal that the multiple access units of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit described in each is to be transmitted to user;
In the uplink, corresponding expanding element is sent to by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element, according to the communication standard label in the light signal received, will send to the access unit supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit is to send to corresponding information source.
As the improvement of such scheme, access unit described in each comprises multiple radio-frequency module, data processing module and multiple photoelectric conversion module;
Described in each, radio-frequency module correspondence receives the radiofrequency signal of a communication standard of same operator, and converts digital signal to and send to described digital signal processing module; And convert the digital signal that digital signal processing module sends to radiofrequency signal to send to corresponding information source;
Described data processing module is used for the radiofrequency signal digitized processing received by described radio-frequency module, and sends to photoelectric conversion module described in each after adding corresponding communication standard label packing formation digital signal; And by after the digital signal dissection process after photoelectric conversion module conversion described in each, send to corresponding radio-frequency module according to the communication standard label in described digital signal;
Described in each, photoelectric conversion module correspondence connects a described expanding element, and the digital signal for being sent by described data processing module converts light signal to and exports; And convert the light signal of input to digital signal and send to described data processing module.
In an embodiment provided by the invention, expanding element described in each comprises multiple input photoelectric conversion module, data processing module and multiple output photoelectric modular converter;
Input photoelectric conversion module correspondence described in each and connect a described access unit, after converting the light signal of input to digital signal, send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
Described data processing module all sends to output photoelectric modular converter described in each after the digital signal inputting photoelectric conversion module transmission described in each is carried out data processing; And according to the communication standard label in the digital signal of output photoelectric modular converter transmission described in each, be transmitted to the input photoelectric conversion module that connect corresponding to supporting the access unit of this communication standard;
The digital signal that described data processing module sends is converted to light signal to export by output photoelectric modular converter described in each; And convert the light signal of input to digital signal to send to described data processing module.
In another embodiment provided by the invention, expanding element described in each comprises multiple input photoelectric conversion module, data processing module, output photoelectric modular converter and light shunt/conjunction road module;
Input photoelectric conversion module correspondence described in each and connect a described access unit, after converting the light signal of input to digital signal, send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
Described data processing module sends to described output photoelectric modular converter after the digital signal inputting photoelectric conversion module transmission described in each is carried out data processing; And according to the communication standard label in the digital signal of described output photoelectric modular converter transmission, the digital signal after process is sent to the input photoelectric conversion module that connect corresponding to supporting the access unit of this communication standard;
The railway digital signal that described data processing module sends by described output photoelectric modular converter converts a road light signal to send to described light shunt/conjunction road module; And convert a road light signal of described light shunt/conjunction road module input to a railway digital signal to send to described data processing module;
Described light shunt/close road module for a road light signal of described output photoelectric modular converter transmission is divided into the identical light signal of multichannel to export; And the multipath light signal of input is synthesized a road light signal to send to described photoelectric conversion module.
As the improvement of such scheme, described light shunt/conjunction road module comprises a defeated light inlet, N number of defeated light-emitting window, 1*N wavelength division multiplexer and 1*N optical branching device;
One road downlink optical signal of described defeated light inlet input is divided into the identical light signal in N road by described 1*N optical branching device, exports respectively by described N number of defeated light-emitting window;
Described 1*N wavelength division multiplexer is exported by described defeated light inlet after the N road uplink optical signal of described N number of defeated light-emitting window input is synthesized a road light signal.
As the improvement of such scheme, described in each, expanding element also comprises ethernet module, described ethernet module is used for access network based on ethernet data, the Ethernet data of described data processing module also for sending described ethernet module processes, and after adding corresponding communication standard label with input the digital signal that photoelectric conversion module sends described in each and together send to output photoelectric modular converter described in each.
As the improvement of such scheme, described in each, expanding element also comprises monitoring module, for monitoring the operating state of other modules in described expanding element, and monitored results is sent to Surveillance center.
As the improvement of such scheme, expanding element described in each also comprises power extension module, powers for each far-end unit connected to described expanding element.
In an embodiment provided by the invention, far-end unit described in each is single system structure, and far-end unit described in each supports multiple communication standards of different operators respectively; Far-end unit described in each comprises photoelectric conversion module, data processing module and RF Amplifier Module;
Described photoelectric conversion module is used for converting the light signal of reception to digital signal to send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
The digital signal that described photoelectric conversion module sends processes by described data processing module, the data filtering of the communication standard do not supported by far-end unit, and the signal after filtering is sent to described RF Amplifier Module; And send to described photoelectric conversion module after the digital signal that described RF Amplifier Module sends is added corresponding communication standard label;
Described RF Amplifier Module converts the signal that data processing module sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
In another embodiment provided by the invention, far-end unit described in each is full system type pictorial structure, far-end unit described in each comprises photoelectric conversion module, data processing module and multiple RF Amplifier Module, and RF Amplifier Module described in each supports multiple communication standards of different operators respectively;
Described photoelectric conversion module is used for converting the light signal of reception to digital signal to send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
The digital signal that described photoelectric conversion module sends processes by described data processing module, and according to the communication standard label in digital signal, the digital signal after process is sent to the RF Amplifier Module supporting this communication standard; And send to described photoelectric conversion module after the digital signal that described RF Amplifier Module sends is added corresponding communication standard label;
RF Amplifier Module described in each converts the signal that data processing module sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
Present invention also offers a kind of communication means, be applicable in the optical fiber distribution system of the multichannel access realizing different location information source, wherein, described optical fiber distribution system comprises multiple access unit, connects at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, access unit described in each supports multiple communication standards of different operators respectively; Described method comprises:
Downlink step: send to expanding element described in corresponding each by optical fiber after the radiofrequency signal received is added corresponding communication standard label by access unit described in each; Expanding element described in each all sends to far-end unit described in corresponding each by optical fiber after the light signal that the multiple access units of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit described in each is to be transmitted to user;
Uplink step: send to corresponding expanding element by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element, according to the communication standard label in the light signal received, will send to the access unit supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit is to send to corresponding information source.
Compared with prior art, the optical fiber distribution system of the multichannel access realizing different location information source disclosed by the invention is by adding the communication standard label of different operators in row packet over/under, and realize the classification of uplink/downlink packet according to communication standard label and directed forward or filter according to communication standard label the communication standard data that uplink/downlink packet do not support, thus the access unit (MU) that different operators business is supported in access can be expanded.The optical fiber distribution system of different location of the present invention information source multichannel access is used to cover an Operator Specific Service to a signal blind zone, when needing to carry out covering construction to other Operator Specific Services, expansion access on original optical fiber distribution system is only needed to support the access unit (MU) of other Operator Specific Services, without the need to adding whole set of system again, do not need to repeat construction.Therefore more effectively utilize existing resource, save operator's quorum sensing inhibitor cost and reduce covering engineering construction difficulty.
Accompanying drawing explanation
Fig. 1 is the basic structure schematic diagram of a kind of optical fiber distribution system in prior art.
Fig. 2 is the structural representation of the optical fiber distribution system adopting star-like networking mode to form.
Fig. 3 is the structural representation of the optical fiber distribution system adopting chrysanthemum type networking mode to form.
Fig. 4 is the structural representation of the optical fiber distribution system adopting mixed type networking mode to form.
Fig. 5 is a kind of structural representation realizing the optical fiber distribution system of different location information source in prior art.
Fig. 6 is a kind of structural representation realizing the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 1 provides.
Fig. 7 is a kind of structural representation realizing the access unit of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 2 provides.
Fig. 8 is a kind of structural representation realizing the expanding element of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 3 provides.
Fig. 9 is a kind of structural representation realizing the expanding element of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 4 provides.
Figure 10 be light in the expanding element shown in Fig. 9 along separate routes/close the structural representation of an embodiment of road module.
Figure 11 is a kind of structural representation realizing the far-end unit of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 5 provides.
Figure 12 is a kind of structural representation realizing the far-end unit of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 6 provides.
Figure 13 is a kind of workflow diagram realizing the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.
Figure 14 is a kind of flow chart being applicable to realize the communication means of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention 7 provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 6, it is a kind of structural representation realizing the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.As shown in the figure, this optical fiber distribution system realizing the multichannel access of different location information source comprises multiple access unit MU, connects at least one expanding element EU of access unit MU described in each respectively, and at least one far-end unit RU to be connected with described expanding element EU, wherein, access unit MU described in each supports multiple communication standards of different operators respectively.
Such as, the optical fiber distribution system of the present embodiment includes three access units MU1, MU2 and MU3, wherein, MU1 only supports multiple communication standards (comprising GSM800, GSM1800, TD-SCDMA, TD-LTE) of operator of China Mobile, MU2 only supports multiple communication standards (comprising GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE) of operator of CHINAUNICOM, and MU3 only supports multiple communication standards (comprising CDMA, CDMA2000, TD-LTE, FDD-LTE) of China Telecom.The optical fiber distribution system of the present embodiment comprises 6 expanding elements EU1, EU2, EU3, EU4, EU5 and EU6, and wherein the upstream data input (downlink data output) of EU1, EU2, EU3 is all connected with the upstream data output (downlink data input) of access unit MU1, MU2 and MU3 by optical fiber.And the upstream data output of each expanding element EU can connect multiple expanding element respectively, such as, the upstream data output of expanding element EU1 is connected to 8 far-end units RU1, RU2, RU3, RU4, RU5, RU6, RU7 and RU8.
In addition, the expansion that the upstream data output (downlink data input) of each expanding element EU can also be connected to realize further with another expanding element EU data is transmitted, such as, the upstream data output (downlink data input) of expanding element EU3 is connected with the upstream data input (downlink data output) of expanding element EU4, and the upstream data output of expanding element EU4 (downlink data input) is connected with the upstream data input (downlink data output) of expanding element EU5 ...
Understandable, in this enforcement, access unit described in each adopts single system structure, and expanding element EU described in each adopts full system type pictorial structure, and described far-end unit can adopt full system type pictorial structure or single system structure.Wherein, single system structure refers to and only supports multiple communication standards of single operator (such as, only supporting the communication standard of China Mobile/CHINAUNICOM/China Telecom); And full system type pictorial structure refers to the communication standard (such as, supporting whole communication standards of China Mobile, CHINAUNICOM and China Telecom) can supporting all operators.
In the down link of the optical fiber distribution system of the present embodiment, after the radiofrequency signal received is added corresponding communication standard label by access unit MU described in each, send to expanding element EU described in corresponding each by optical fiber; Expanding element EU described in each all sends to far-end unit RU described in corresponding each by optical fiber after the light signal that the multiple access unit MU of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit RU described in each is to be transmitted to user.
The present embodiment optical fiber distribution system in the uplink, send to corresponding expanding element EU by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element EU, according to the communication standard label in the light signal received, will send to the access unit MU supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit MU is to send to corresponding information source.
Understandable, what in the optical fiber distribution system of Fig. 6 display, the networking mode of EU and RU adopted is mixed networking mode, but the optical fiber distribution system of the present embodiment also can adopt star-like networking or chrysanthemum type networking mode.
With reference to figure 7, it is a kind of structural representation realizing the access unit MU of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.The access unit MU of the present embodiment is as the main access device of whole optical fiber distribution system, for the downlink radio-frequency signal of the base station/RRU that is coupled by feeder line, and digital processing packing formation digital signal is carried out to this radiofrequency signal, then opto-electronic conversion is carried out to this digital signal and become light signal; And the uplink optical signal received from EU, by opto-electronic conversion, light signal is converted to digital signal, then radiofrequency signal is reduced to the Digital Signal Processing of packing, send to base station/RRU via feeder line.
Concrete, the access unit MU of the present embodiment comprises multiple radio-frequency module 11, data processing module 12 and multiple photoelectric conversion module 13, wherein:
Described in each, radio-frequency module 11 is provided with prevention at radio-frequency port, is received the radiofrequency signal of a communication standard of same operator by feeder line correspondence, and converts digital signal to and send to described digital signal processing module 12; And convert the digital signal that digital signal processing module 12 sends to radiofrequency signal to send to corresponding information source;
The radiofrequency signal digitized processing of described data processing module 12 for described radio-frequency module 11 is received, and send to photoelectric conversion module 13 described in each after adding corresponding communication standard label packing formation digital signal; And after digital signal dissection process after being changed by photoelectric conversion module described in each 13, send to corresponding radio-frequency module 11 according to the communication standard label in described digital signal;
Described in each, photoelectric conversion module 13 correspondence connects a described expanding element EU, and the digital signal for being sent by described data processing module 12 converts light signal to and exports to corresponding expanding element; And convert the light signal of input to digital signal and send to described data processing module 12.
Preferably, the access unit MU of the present embodiment also comprises power module 14 and monitoring module 15, wherein, power module 14 is for giving the power supply of each functional module (comprising radio-frequency module 11, data processing module 12, photoelectric conversion module 13 and monitoring module 15) in MU.And described monitoring module 15 is for monitoring the operating state of each functional module (comprising radio-frequency module 11, data processing module 12, photoelectric conversion module 13 and power module 14) in described access unit, and monitored results is sent to Surveillance center in time, to ensure the normal work of access unit.
With reference to figure 8, it is a kind of structural representation realizing the expanding element EU of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.In the present embodiment, each expanding element EU can realize the expansion of light signal and conjunction road, and the light signal that the radiofrequency signal under existing all communication standards is formed after MU process conversion all can receive, forwards and expand.Power extension and the power demands meeting multichannel far-end unit RU can also be realized, support to expand the power supply of RU or EU.
Concrete, the expanding element EU of the present embodiment comprises multiple input photoelectric conversion module 21, data processing module 22 and multiple output photoelectric modular converter 23;
Input photoelectric conversion module 21 (being provided with optical port) correspondence described in each and connect a described access unit MU, after converting the light signal of input to digital signal, send to described data processing module 22; And convert the digital signal that described data processing module 22 sends to light signal to export to corresponding access unit;
Described data processing module 22 all sends to output photoelectric modular converter 23 described in each by inputting described in each after digital signal that photoelectric conversion module 21 sends carries out data processing (first subpackage after packing); And according to the communication standard label in the digital signal of output photoelectric modular converter 23 transmission described in each, orientation is transmitted to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit of this communication standard; Such as, in the present embodiment, when data processing module 22 receives the communication standard label of the digital signal Zhong Dai China Mobile that described output photoelectric modular converter 23 sends, then the digital signal after process being sent to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit MU1 of this communication standard, converting light signal to by input photoelectric conversion module 21 and sending to described access unit MU1.
Described in each, output photoelectric modular converter 23 (being provided with optical port) correspondence connects a far-end unit RU or expanding element EU, and the digital signal for being sent by described data processing module 22 converts light signal to export to corresponding far-end unit RU or expanding element EU; And convert the light signal of input to digital signal to send to described data processing module 22.
Preferably, in the present embodiment, expanding element EU described in each also comprises the ethernet module 26 be connected with described data processing module 22, and described ethernet module 26 for access network based on ethernet data, and sends to described data processing module 22.After described data processing module 22 receives the Ethernet data that described ethernet module 26 sends, after adding corresponding communication standard label with input described in each digital signal that photoelectric conversion module sends together pack after again subpackage send to output photoelectric modular converter 23 described in each.
As the improvement of such scheme, described in each, expanding element EU also comprises power extension module 25, powers for each far-end unit RU connected to described expanding element EU.
As the improvement of such scheme, described in each, expanding element EU also comprises monitoring module 24, for monitoring the operating state of each functional module (comprising input photoelectric conversion module 21, data processing module 22, output photoelectric modular converter 23, ethernet module 26 and power extension module 25) in described expanding element EU, and monitored results is sent to Surveillance center in time, to ensure the normal work of expanding element.
With reference to figure 9, it is a kind of another structural representation realizing the expanding element EU of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.Concrete, the expanding element EU of the present embodiment comprises multiple input photoelectric conversion module 21, data processing module 22, output photoelectric modular converter 23 and light shunt/conjunction road module 29;
Input photoelectric conversion module 21 (being provided with optical port) correspondence described in each and connect a described access unit MU, after converting the light signal of input to digital signal, send to described data processing module 22; And convert the digital signal that described data processing module 22 sends to light signal to export to corresponding access unit;
Described data processing module 22 sends to described output photoelectric modular converter 23 by inputting described in each after digital signal that photoelectric conversion module 21 sends carries out data processing (packing); And according to the communication standard label in the digital signal of described output photoelectric modular converter 23 transmission, orientation is transmitted to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit of this communication standard; Such as, in the present embodiment, when data processing module 22 receives the communication standard label of the digital signal Zhong Dai China Mobile that described output photoelectric modular converter 23 sends, then the digital signal after process being sent to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit MU1 of this communication standard, converting light signal to by input photoelectric conversion module 21 and sending to described access unit MU1.
The railway digital signal that described data processing module 22 sends by described output photoelectric modular converter 23 converts a road light signal to send to described light shunt/conjunction road module 29; And convert the road light signal that described light shunt/conjunction road module 29 inputs to a railway digital signal to send to described data processing module 22;
Described light shunt/conjunction road module 29 is divided into the identical light signal of multichannel to export to far-end unit RU or expanding element EU for the road light signal sent by described output photoelectric modular converter 23; And the multipath light signal of input is synthesized a road light signal to send to described output photoelectric modular converter 23.
In addition, the expanding element EU of the present embodiment also comprises ethernet module 26, power extension module 25 and monitoring module 24, and its concrete structure and effect and consistent shown in Fig. 9, omit description at this.
Wherein, the light shunt/conjunction road module 29 of the present embodiment can adopt structure as shown in Figure 10.This light shunt/conjunction road module 29 comprises a defeated light inlet 290, N number of defeated light-emitting window 293,1*N wavelength division multiplexer 291 and 1*N optical branching device 292;
The road downlink optical signal that described defeated light inlet 290 inputs is divided into the identical light signal in N road by described 1*N optical branching device 292, exports respectively by described N number of defeated light-emitting window 293;
Described 1*N wavelength division multiplexer 291 is exported by described defeated light inlet 290 after the N road uplink optical signal that described N number of defeated light-emitting window 293 inputs is synthesized a road light signal.
It should be noted that wavelength division multiplexer is incorporated into by multipath light signals different for wavelength inside a road optical fiber to transmit, this road light signal contains the light signal of multiple different wave length; And optical branching device light signal is divided into the identical light signal of multichannel, the wavelength that these multipath light signals contain is identical, and the data contained also are identical.
Visible, the expanding element EU of the present embodiment also can realize the function shown in Fig. 8, unlike, the export expansion of the expanding element EU shown in Fig. 8 multiple output photoelectric modules 23 are along separate routes removed and are only left a road output photoelectric modular converter 23 by the expanding element EU of the present embodiment, optical signals light shunt after conversion/conjunction road module 29 is divided into multipath light signal to realize the function expanded, under certain condition, the light signal that such as output photoelectric modular converter 23 exports is enough strong or light signal is little by the decay after optical fiber, so light shunt/closing road module 29 port number can be unrestricted, the advantage of this mode just breaches expanding element EU and expands quantity and the unmodifiable bottleneck of expansion quantity.It is 8 tunnels that common expanding element EU expands quantity, and to adopt can be 16 or 32 etc. in this way easily along separate routes by light signal.And, RU quantity can also be expanded to EU and realize customization, as 3 roads or 5 roads or 11 tunnels export, and only need change the amendment that light shunt module can realize output port number.
With reference to Figure 11, it is a kind of structural representation realizing the far-end unit RU of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.Wherein, the far-end unit RU of the present embodiment adopts single system structure, and namely far-end unit RU described in each supports multiple communication standards of different operators respectively.Concrete, far-end unit RU described in each comprises photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33.Wherein:
Described photoelectric conversion module 31 (being provided with optical port) connects expanding element EU, for the light signal of reception being converted to digital signal to send to described data processing module 32 by optical fiber correspondence; And convert the digital signal that described data processing module 32 sends to light signal to export to corresponding expanding element;
The digital signal that described photoelectric conversion module 31 sends carries out processing (data unpack) by described data processing module 32, the data filtering of the communication standard self do not supported, and the signal after filtering is sent to described RF Amplifier Module 33; And send to described photoelectric conversion module 31 after the digital signal that described RF Amplifier Module 33 sends is added corresponding communication standard label.Such as, when described data processing module 32 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal of described photoelectric conversion module 31 transmission, if this far-end unit RU itself only supports China Mobile's standard, so, described data processing module 32 by unpack rear in the data filtering comprising CHINAUNICOM's communication standard, the remaining data comprising China Mobile's standard send to RF Amplifier Module 33.In addition, when comprising the Ethernet data of the communication standard supported itself in the data after filtering, then (pass through corresponding port) and directly send to the computer terminal connecting Ethernet.
Described RF Amplifier Module 33 converts the signal that data processing module 32 sends to radiofrequency signal and amplifies to be transmitted to user's (mobile terminal); And send to described data processing module 32 by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
Understandable, the RF Amplifier Module 33 in the present embodiment can support multiple communication standards of same operator, and it also can comprise multiple radio frequency amplifying unit, and each radio frequency amplifying unit correspondence supports a communication standard of same operator.Like this, the data-directed after filtration can be transmitted to based on communication standard label the radio frequency amplifying unit supporting this communication tags by described data processing module 32.
Preferably, the far-end unit RU of the present embodiment also comprises powered module 34 and monitoring module 35, described powered module 34 for connecting the power extension module 25 of expanding element EU, for each functional module (comprise photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33 and the monitoring module 35) power supply of electric energy distally in unit R U that will receive.Described monitoring module 35 is for monitoring the operating state of each functional module (comprising photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33 and powered module 34) in described far-end unit RU, and monitored results is sent to Surveillance center in time, to ensure the normal work of far-end unit RU.
With reference to Figure 12, it is a kind of another structural representation realizing the far-end unit RU of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.Wherein, the far-end unit RU of the present embodiment adopts full system type pictorial structure, and namely the far-end unit RU of the present embodiment supports all communication standards of various operator.
Concrete, this far-end unit RU comprises photoelectric conversion module 31, data processing module 32 and multiple RF Amplifier Module 33, and RF Amplifier Module 33 described in each supports multiple communication standards of different operators respectively, wherein:
Described photoelectric conversion module 31 (being provided with optical port) connects expanding element EU, for the light signal of reception being converted to digital signal to send to described data processing module 32 by optical fiber correspondence; And convert the digital signal that described data processing module 32 sends to light signal to export to corresponding expanding element;
The digital signal that described photoelectric conversion module 31 sends carries out processing (data unpack) by described data processing module 32, and according to the communication standard label in digital signal, the digital signal after process is sent to the RF Amplifier Module 33 supporting this communication standard; And send to described photoelectric conversion module 31 after the digital signal that described RF Amplifier Module 33 sends is added corresponding communication standard label; Such as, when described data processing module 32 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal of described photoelectric conversion module 31 transmission, then the data correspondence comprising China Mobile's standard is sent to the RF Amplifier Module 33 supporting this communication standard, and the data comprising CHINAUNICOM's communication standard are sent to another RF Amplifier Module 33 supporting this communication standard.Same, when comprising the Ethernet data of the communication standard supported itself in described data processing module 32, then (pass through corresponding port) and directly send to the computer terminal connecting Ethernet.
RF Amplifier Module 33 described in each converts the signal that data processing module 32 sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module 32 by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
Understandable, the RF Amplifier Module 33 in the present embodiment can support multiple communication standards of same operator, and it also can comprise multiple radio frequency amplifying unit, and each radio frequency amplifying unit correspondence supports a communication standard of same operator.Like this, data-directed can be transmitted to based on communication standard label the radio frequency amplifying unit supporting this communication tags by described data processing module 32.
In addition, the far-end unit RU of the present embodiment also comprises powered module 34 and monitoring module 35, and concrete structure and function please refer to above-described embodiment.
Below, in conjunction with Figure 13, a kind of operation principle realizing the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides is described in detail.The optical fiber distribution system operation principle that the present embodiment provides is as follows:
down link
Step 1:MU data receiver
The MU of single system structure receives information source is sent to MU respective radio-frequency port radiofrequency signal by feeder line.
Step 2:MU data processing
The radiofrequency signal digitized processing that the radio-frequency module of MU will receive, and add the packing of communication standard label by data processing module and form digital signal, digital signal converts light signal to through photoelectric conversion module and exports.
Step 3:MU data send
Optical signals optical fiber is sent to the optical port of EU by MU by optical port.
Step 4:EU data receiver
EU optical port receives the light signal from MU, and the MU optical signal transmission fiber of different operators accesses the different optical port of EU.Meanwhile, Ethernet data is linked into EU by Ethernet interface.
Step 5:EU data processing
The light signal received is converted to the signal of telecommunication by photoelectric conversion module by EU, the data processing module that EU together delivered to by this signal of telecommunication and Ethernet data carries out data processing packing, and form the digital signal of multichannel, convert light signal to respectively by multichannel photoelectric conversion module (or light shunt/conjunction road module) and deliver to optical port.
Step 6:EU data send
Optical signals composite fiber (containing power line) is sent to the optical port of EU or RU by expansion optical port by EU.
Step 7:RU data receiver
RU optical port receives the light signal from EU.
Step 8:RU data processing
The light signal of reception is converted to digital signal by photoelectric conversion module by RU, when RU adopts single system structure, the data processing module of RU is by identification communication standard flag bit, the data filtering of the communication standard do not supported by RU is lost, then send to RF Amplifier Module to be converted to radiofrequency signal the data after filtration, amplify through signal and send; When RU adopts full system type pictorial structure, the data processing module of RU is by identification communication standard flag bit, different systems packet is carried out Data Analysis process respectively, form new digital signal, and the RF Amplifier Module being distributed to standard corresponding is converted to radiofrequency signal, amplifies through signal and send.
Step 9:RU quorum sensing inhibitor
Radiofrequency signal is coupled to antenna by feeder line, and signal amplitude to be shot out by antenna and to realize quorum sensing inhibitor, user terminal receives the transmission that namely data complete a downstream signal.
up link
Step 1:RU data receiver
User terminal sends signal in compartment system coverage, and the communication standard of this signal is supported by RU.
Step 2:RU data processing
RU receives the radiofrequency signal that user terminal sends out, and after amplifying, be converted to digital signal again, the data processing module of RU processes these data and adds communication standard label, then transfers to photoelectric conversion module to be converted to light signal output.
Step 3:RU data send
Optical signals composite fiber (containing power line) is sent to the optical port of EU by RU by optical port.
Step 4:EU data receiver
EU optical port receives the light signal from RU.
Step 5:EU data processing
The light signal of reception is converted to the signal of telecommunication by the photoelectric conversion module of EU, and transfer to data processing module process to form new packet, simultaneously according to the communication standard label of packet, by new data packets to the corresponding photoelectric conversion module of communication standard or ethernet module, then it is converted into light signal after receiving packet to be sent to photoelectric conversion module, if be sent to ethernet module, then by ethernet module, data are sent to Internet.
Step 6:EU data send
Optical signals optical fiber, by the optical port corresponding to photoelectric conversion module selected according to data standard label, is sent to MU optical port by EU.
Step 7:MU data receiver
MU optical port receives the light signal from EU.
Step 8:MU data processing
The light signal of reception is converted to digital signal by photoelectric conversion module by MU, after the data processing module of MU carries out Data Analysis process to packet, is sent to radio-frequency module, is converted to radiofrequency signal.
Step 9:MU signal is uploaded
Radiofrequency signal is coupled to base station/RRU by feeder line, completes the transmission of a upward signal.
With reference to Figure 14, it is a kind of flow chart being applicable to realize the communication means of the optical fiber distribution system of the multichannel access of different location information source that the embodiment of the present invention provides.Wherein, described optical fiber distribution system comprises multiple access unit, connects at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, access unit described in each supports multiple communication standards of different operators respectively; Described method comprises:
Step S1501, downlink step: after the radiofrequency signal received is added corresponding communication standard label by access unit described in each, send to expanding element described in corresponding each by optical fiber; Expanding element described in each all sends to far-end unit described in corresponding each by optical fiber after the light signal that the multiple access units of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit described in each is to be transmitted to user;
Step S1502, uplink step: after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each, send to corresponding expanding element by optical fiber; Described expanding element, according to the communication standard label in the light signal received, will send to the access unit supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit is to send to corresponding information source.
In sum, the optical fiber distribution system of the multichannel access realizing different location information source disclosed by the invention and method are by adding the communication standard label of different operators in row packet over/under, and realize the classification of uplink/downlink packet according to communication standard label and directed forward or filter according to communication standard label the communication standard data that uplink/downlink packet do not support, thus the access unit (MU) that different operators business is supported in access can be expanded.The optical fiber distribution system of different location of the present invention information source multichannel access is used to cover an Operator Specific Service to a signal blind zone, when needing to carry out covering construction to other Operator Specific Services, expansion access on original optical fiber distribution system is only needed to support the access unit (MU) of other Operator Specific Services, without the need to adding whole set of system again, do not need to repeat construction.Therefore more effectively utilize existing resource, save operator's quorum sensing inhibitor cost and reduce covering engineering construction difficulty.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. one kind realizes the optical fiber distribution system of the multichannel access of different location information source, it is characterized in that, comprise multiple access unit, connect at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, wherein, access unit described in each supports multiple communication standards of different operators respectively;
In the downlink, expanding element described in corresponding each is sent to by optical fiber after the radiofrequency signal received is added corresponding communication standard label by access unit described in each; Expanding element described in each all sends to far-end unit described in corresponding each by optical fiber after the light signal that the multiple access units of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit described in each is to be transmitted to user;
In the uplink, corresponding expanding element is sent to by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element, according to the communication standard label in the light signal received, will send to the access unit supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit is to send to corresponding information source.
2. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, access unit described in each comprises multiple radio-frequency module, data processing module and multiple photoelectric conversion module;
Described in each, radio-frequency module correspondence receives the radiofrequency signal of a communication standard of same operator, and converts digital signal to and send to described digital signal processing module; And convert the digital signal that digital signal processing module sends to radiofrequency signal to send to corresponding information source;
Described data processing module is used for the radiofrequency signal digitized processing received by described radio-frequency module, and sends to photoelectric conversion module described in each after adding corresponding communication standard label packing formation digital signal; And by after the digital signal dissection process after photoelectric conversion module conversion described in each, send to corresponding radio-frequency module according to the communication standard label in described digital signal;
Described in each, photoelectric conversion module correspondence connects a described expanding element, and the digital signal for being sent by described data processing module converts light signal to and exports; And convert the light signal of input to digital signal and send to described data processing module.
3. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, expanding element described in each comprises multiple input photoelectric conversion module, data processing module and multiple output photoelectric modular converter;
Input photoelectric conversion module correspondence described in each and connect a described access unit, after converting the light signal of input to digital signal, send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
Described data processing module all sends to output photoelectric modular converter described in each after the digital signal inputting photoelectric conversion module transmission described in each is carried out data processing; And according to the communication standard label in the digital signal of output photoelectric modular converter transmission described in each, be transmitted to the input photoelectric conversion module that connect corresponding to supporting the access unit of this communication standard;
The digital signal that described data processing module sends is converted to light signal to export by output photoelectric modular converter described in each; And convert the light signal of input to digital signal to send to described data processing module.
4. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, expanding element described in each comprises multiple input photoelectric conversion module, data processing module, output photoelectric modular converter and light shunt/conjunction road module;
Input photoelectric conversion module correspondence described in each and connect a described access unit, after converting the light signal of input to digital signal, send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
Described data processing module sends to described output photoelectric modular converter after the digital signal inputting photoelectric conversion module transmission described in each is carried out data processing; And according to the communication standard label in the digital signal of described output photoelectric modular converter transmission, the digital signal after process is sent to the input photoelectric conversion module that connect corresponding to supporting the access unit of this communication standard;
The railway digital signal that described data processing module sends by described output photoelectric modular converter converts a road light signal to send to described light shunt/conjunction road module; And convert a road light signal of described light shunt/conjunction road module input to a railway digital signal to send to described data processing module;
Described light shunt/close road module for a road light signal of described output photoelectric modular converter transmission is divided into the identical light signal of multichannel to export; And the multipath light signal of input is synthesized a road light signal to send to described photoelectric conversion module.
5. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 4, it is characterized in that, described light shunt/conjunction road module comprises a defeated light inlet, N number of defeated light-emitting window, 1*N wavelength division multiplexer and 1*N optical branching device;
One road downlink optical signal of described defeated light inlet input is divided into the identical light signal in N road by described 1*N optical branching device, exports respectively by described N number of defeated light-emitting window;
Described 1*N wavelength division multiplexer is exported by described defeated light inlet after the N road uplink optical signal of described N number of defeated light-emitting window input is synthesized a road light signal.
6. the optical fiber distribution system realizing the multichannel access of different location information source as described in any one of claim 3 ~ 5, it is characterized in that, described in each, expanding element also comprises ethernet module, described ethernet module is used for access network based on ethernet data, the Ethernet data of described data processing module also for sending described ethernet module processes, and after adding corresponding communication standard label with input the digital signal that photoelectric conversion module sends described in each and together send to output photoelectric modular converter described in each;
Preferably, described in each, expanding element also comprises monitoring module, for monitoring the operating state of other modules in described expanding element, and monitored results is sent to Surveillance center;
Preferably, expanding element described in each also comprises power extension module, powers for each far-end unit connected to described expanding element.
7. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, described optical fiber distribution system adopts star-like networking, chrysanthemum type networking or mixed type networking.
8. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, far-end unit described in each is single system structure, and far-end unit described in each supports multiple communication standards of different operators respectively; Far-end unit described in each comprises photoelectric conversion module, data processing module and RF Amplifier Module;
Described photoelectric conversion module is used for converting the light signal of reception to digital signal to send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
The digital signal that described photoelectric conversion module sends processes by described data processing module, the data filtering of the communication standard do not supported by far-end unit, and the signal after filtering is sent to described RF Amplifier Module; And send to described photoelectric conversion module after the digital signal that described RF Amplifier Module sends is added corresponding communication standard label;
Described RF Amplifier Module converts the signal that data processing module sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
9. realize the optical fiber distribution system of the multichannel access of different location information source as claimed in claim 1, it is characterized in that, far-end unit described in each is full system type pictorial structure, far-end unit described in each comprises photoelectric conversion module, data processing module and multiple RF Amplifier Module, and RF Amplifier Module described in each supports multiple communication standards of different operators respectively;
Described photoelectric conversion module is used for converting the light signal of reception to digital signal to send to described data processing module; And convert the digital signal that described data processing module sends to light signal to export;
The digital signal that described photoelectric conversion module sends processes by described data processing module, and according to the communication standard label in digital signal, the digital signal after process is sent to the RF Amplifier Module supporting this communication standard; And send to described photoelectric conversion module after the digital signal that described RF Amplifier Module sends is added corresponding communication standard label;
RF Amplifier Module described in each converts the signal that data processing module sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
10. a communication means, be applicable in the optical fiber distribution system of the multichannel access realizing different location information source, wherein, described optical fiber distribution system comprises multiple access unit, connects at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, access unit described in each supports multiple communication standards of different operators respectively; It is characterized in that, described method comprises:
Downlink step: send to expanding element described in corresponding each by optical fiber after the radiofrequency signal received is added corresponding communication standard label by access unit described in each; Expanding element described in each all sends to far-end unit described in corresponding each by optical fiber after the light signal that the multiple access units of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit described in each is to be transmitted to user;
Uplink step: send to corresponding expanding element by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element, according to the communication standard label in the light signal received, will send to the access unit supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit is to send to corresponding information source.
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