CN105141368A - Optical fiber distribution system and method supporting multi-communication-standard access - Google Patents
Optical fiber distribution system and method supporting multi-communication-standard access Download PDFInfo
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Abstract
The invention discloses an optical fiber distribution system supporting multi-communication-standard access. The system comprises a plurality of access units, at least one expansion unit which is connected with each access unit, and at least one far-end unit which is connected with the expansion units, wherein the access units respectively support a plurality of communication standards of different service providers, and the far-end units respectively support the plurality of communication standards of the different service providers; in a down link, the expansion units respectively process received optical signals according to communication standard labels in the received optical signals and send the optical signals to the far-end units supporting the communication standards; in an up link, the expansion units respectively process the received optical signals and send the optical signals to each access unit; and each access unit filters out data of unsupported communication standards according to the communication standard labels in the received optical signals and converts the filtered signals into radiofrequency signals of the corresponding communication standards, thereby enabling the radiofrequency signals to be sent to corresponding information sources.
Description
Technical field
The present invention relates to electronic device field, particularly relate to a kind of support multi-communication standard to access optical fiber distribution system and method.
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 be to provide a kind of support multi-communication standard to access optical fiber distribution system and method, 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, repeat the problem of constructing.
Embodiments provide a kind of optical fiber distribution system supporting multi-communication standard to access, 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, and far-end 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, according to the communication standard label in the light signal received, will send to the far-end 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 far-end unit is to be transmitted to user;
In the uplink, corresponding described 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 described in each; Described expanding element all sends to access unit described in each by after the optical signal prosessing received; Access unit described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard to send to corresponding information source.
In one embodiment of the invention, 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, the data filtering of the communication standard that access unit is not supported, and the signal after filtering is sent to corresponding radio-frequency module;
Photoelectric conversion module described in each is used for the digital signal that described data processing module sends being converted to light signal and exports; And convert the light signal of input to digital signal and send to described data processing module.
In one embodiment of 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;
Digital signal after process, according to the communication standard label inputted described in each in the digital signal of photoelectric conversion module transmission, is sent to the output photoelectric modular converter that connect corresponding to supporting the far-end unit of this communication standard by described data processing module; And input photoelectric conversion module by all sending to described in each after the Digital Signal Processing of output photoelectric modular converter transmission described in each;
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 of the present invention, expanding element described in each comprises light shunt/conjunction road module, input photoelectric conversion module, data processing module and multiple output photoelectric modular converter;
The multipath light signal of input is synthesized a road light signal and sends to described input photoelectric conversion module by described light shunt/conjunction road module; And the road light signal that described input photoelectric conversion module sends is divided into the identical light signal output of multichannel;
Described input photoelectric conversion module sends to described data processing module after converting the road light signal that described light shunt/conjunction road module sends to digital signal; And convert the digital signal that described data processing module sends to a road light signal to send to light shunt/conjunction road module;
Described data processing module all sends to output photoelectric modular converter described in each after the digital signal that described input photoelectric conversion module sends is carried out data processing; And send to described input photoelectric conversion module by after the Digital Signal Processing of output photoelectric modular converter transmission described in each;
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.
As the improvement of such scheme, described light shunt/conjunction road module comprises N number of defeated light inlet, defeated light-emitting window, 1*N wavelength division multiplexer and a 1*N optical branching device; Wherein, N be greater than 1 natural number;
Described 1*N wavelength division multiplexer is exported by described defeated light-emitting window after the N road downlink optical signal of described N number of defeated light inlet input is synthesized a road light signal;
Described 1*N optical branching device exports respectively by described N number of defeated light inlet after part of traveling optical signal on the way of described defeated light-emitting window input is become N 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 the digital signal sent with described input photoelectric conversion module after adding corresponding communication standard label together sends to described output photoelectric modular converter.
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 supply sub-module, powers for each far-end unit connected to described expanding element.
In one embodiment of the invention, 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.
The embodiment of the present invention additionally provides a kind of communication means, be applicable to support in the optical fiber distribution system of multi-communication standard access, 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, according to the communication standard label in the light signal received, will send to the far-end 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 far-end unit is to be transmitted to user;
Uplink step: send to corresponding described expanding element by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit described in each; Described expanding element all sends to access unit described in each by after the optical signal prosessing received; Access unit described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard to send to corresponding information source.
Compared with prior art, the optical fiber distribution system of support multi-communication standard disclosed by the invention access 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 the structural representation of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention 1 provides.
Fig. 7 is the structural representation of the access unit of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention 2 provides.
Fig. 8 is the structural representation of the expanding element of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention 3 provides.
Fig. 9 is the structural representation of the expanding element of a kind of optical fiber distribution system supporting multi-communication standard to access 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 the structural representation of the far-end unit of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention 5 provides.
Figure 12 is the workflow diagram of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention provides.
Figure 13 is a kind of flow chart being applicable to the communication means of the optical fiber distribution system supporting multi-communication standard access that the embodiment of the present invention 6 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 the structural representation of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention provides.As shown in the figure, the optical fiber distribution system of this support multi-communication standard access 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, and far-end unit RU 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.Wherein, suppose that far-end unit RU1, RU4, RU7 only support multiple communication standards (comprising GSM800, GSM1800, TD-SCDMA, TD-LTE) of operator of China Mobile, and RU2, RU5, RU8 only support multiple communication standards (comprising GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE) of operator of CHINAUNICOM, RU3 and RU6 only supports multiple communication standards (comprising CDMA, CDMA2000, TD-LTE, FDD-LTE) of China Telecom.
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 adopts 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, according to the communication standard label in the light signal received, will send to the far-end unit RU 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 far-end unit RU is to be transmitted to user.The present embodiment optical fiber distribution system in the uplink, send to corresponding described 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 will all send to access unit MU described in each after the optical signal prosessing received; Access unit MU described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard 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 the structural representation of the access unit MU of a kind of optical fiber distribution system supporting multi-communication standard to access 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 receive from the uplink optical signal of EU, by opto-electronic conversion light signal be converted to digital signal and filter, then radiofrequency signal is reduced to the Digital Signal Processing after filtering, sending 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, by the data filtering of communication standard do not supported, and send to corresponding radio-frequency module 11 according to the communication standard label in the digital signal after filtering;
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 the structural representation of the expanding element EU of a kind of optical fiber distribution system supporting multi-communication standard to access 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;
Digital signal after process, according to the communication standard label inputted described in each in the digital signal of photoelectric conversion module 21 transmission, is sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit of this communication standard by described data processing module 22; And the digital signal that output photoelectric modular converter 23 described in each sent carry out data processing (first subpackage after packing) after all send to described in each and input photoelectric conversion module 21.
Such as, in the present embodiment, when data processing module 22 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal inputting photoelectric conversion module 21 transmission described in each, then the data comprising China Mobile's standard are sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit RU1 of this communication standard, and the data comprising CHINAUNICOM's communication standard are sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit RU2 of this communication standard.In addition, described data processing module 22 also sends to the output photoelectric modular converter 23 be connected with another expanding element EU, to be transmitted to another expanding element EU by this photoelectric conversion module 23 after inputting digital signal packing that photoelectric conversion module 21 sends described in each.
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 and the output photoelectric modular converter 23 supporting the output photoelectric modular converter 23 that the far-end unit RU of this communication standard is connected and be connected with another expanding element EU.
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 another structural representation of the expanding element EU of a kind of optical fiber distribution system supporting multi-communication standard to access that the embodiment of the present invention provides.Concrete, expanding element described in each comprises light shunt/conjunction road module 29, input photoelectric conversion module 21, data processing module 22 and multiple output photoelectric modular converter 23; Wherein:
Described light shunt/conjunction road module 29 connects multiple access unit MU, the multipath light signal of input is synthesized a road light signal and send to described input photoelectric conversion module 21; And the road light signal to be sent by described input photoelectric conversion module 21 is divided into the identical light signal of multichannel and exports to each access unit MU;
Described input photoelectric conversion module 21 sends to described data processing module 22 after converting the road light signal that described light shunt/conjunction road module 29 sends to digital signal; And convert the digital signal that described data processing module 22 sends to a road light signal to send to light shunt/conjunction road module 29;
The digital signal that described input photoelectric conversion module 21 sends is carried out data processing by described data processing module 22), according to the communication standard label in digital signal, the digital signal after process is sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit of this communication standard; And the digital signal that output photoelectric modular converter 23 described in each sent carry out data processing packing after all send to described input photoelectric conversion module 21.Such as, in the present embodiment, when data processing module 22 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal inputting photoelectric conversion module 21 transmission described in each, then the data comprising China Mobile's standard are sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit RU1 of this communication standard, and the data comprising CHINAUNICOM's communication standard are sent to the output photoelectric modular converter 23 that connect corresponding to supporting the far-end unit RU2 of this communication standard.In addition, the output photoelectric modular converter 23 be connected with another expanding element EU is sent to, to be transmitted to another expanding element EU by this photoelectric conversion module 23 after the digital signal packing that described input photoelectric conversion module 21 also sends by described data processing module 22.
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.
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. 8, omit description at this.
Wherein, the light shunt/conjunction road module 29 of the present embodiment can adopt structure as shown in Figure 10.Described light shunt/conjunction road module 29 comprises M defeated light inlet 290, defeated light-emitting window 293,1*M optical branching device 291 and a 1*M wavelength division multiplexer 292.Wherein, M be greater than 1 natural number
Described 1*M wavelength division multiplexer 292 is exported by described defeated light-emitting window 293 after the M road downlink optical signal that described M defeated light inlet 290 inputs is synthesized a road light signal;
Export respectively by described M defeated light inlet after part of traveling optical signal on the way that described defeated light-emitting window 293 inputs by described 1*M optical branching device 291 becomes M road light signal.
The expanding element EU of the present embodiment also can realize the function shown in Fig. 8, unlike, photoelectric conversion module corresponding to the optical port be connected with MU in expanding element EU shown in Fig. 8 all removes and only retains one by the expanding element EU of the present embodiment, by the descending input of light shunt/conjunction road module 29, multichannel input optical signal is closed Lu Weiyi road light signal, send photoelectric conversion module again to be converted to the signal of telecommunication and to transfer to data processing module process, the digital signal processed deliver to multichannel photoelectric conversion module be converted to multipath light signal expansion export far-end unit RU to, and the uplink receiving termination of expanding element EU receives the uplink optical signal of multichannel RU, the signal of telecommunication is converted to by each self-corresponding photoelectric conversion module, send data processing module process again to, the digital signal processed is delivered to photoelectric conversion module and is converted to light signal, is expanded to multipath light signal exported to MU by light shunt/conjunction road module 29.The advantage of this mode just breaches expanding element EU and expands quantity and the unmodifiable bottleneck of expansion quantity.And, MU 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 the structural representation of the far-end unit RU of a kind of optical fiber distribution system supporting multi-communication standard to access 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 processes by described data processing module 32, and the signal after process 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.In addition, when comprising the Ethernet data of the communication standard supported itself in the data after processing, 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 process 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.
Below, in conjunction with Figure 12, the operation principle of a kind of optical fiber distribution system supporting multi-communication standard to access 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 processes, data processing module is given according to the communication standard label directive sending in signal and is supported the photoelectric conversion module that the far-end unit of this communication standard is connected, and send to the photoelectric conversion module be connected with another EU after being packed with Ethernet data by the signal of telecommunication, convert light signal to respectively by photoelectric conversion 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, sends to RF Amplifier Module to be converted to radiofrequency signal digital signal, amplifies send through signal.
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 carry out data 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.If Ethernet data, then by ethernet module, data are sent to Internet.
Step 6:EU data send
Optical signals optical fiber is sent to each 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, the data processing module of MU passes through identification communication standard flag bit to packet, the data filtering of the communication standard do not supported by MU is lost, and then the data after filtration 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 13, it is a kind of flow chart being applicable to the communication means of the optical fiber distribution system supporting multi-communication standard access 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, and far-end 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, according to the communication standard label in the light signal received, will send to the far-end 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 far-end unit 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 described in each, send to corresponding described expanding element by optical fiber; Described expanding element all sends to access unit described in each by after the optical signal prosessing received; Access unit described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard to send to corresponding information source.
In sum, the optical fiber distribution system of support multi-communication standard disclosed by the invention access 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. the optical fiber distribution system supporting multi-communication standard to access, 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, and far-end 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, according to the communication standard label in the light signal received, will send to the far-end 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 far-end unit is to be transmitted to user;
In the uplink, corresponding described 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 described in each; Described expanding element all sends to access unit described in each by after the optical signal prosessing received; Access unit described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard to send to corresponding information source.
2. the optical fiber distribution system supporting multi-communication standard access 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, the data filtering of the communication standard that access unit is not supported, and the signal after filtering is sent to corresponding radio-frequency module;
Photoelectric conversion module described in each is used for the digital signal that described data processing module sends being converted to light signal and exports; And convert the light signal of input to digital signal and send to described data processing module.
3. the optical fiber distribution system supporting multi-communication standard access 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;
Digital signal after process, according to the communication standard label inputted described in each in the digital signal of photoelectric conversion module transmission, is sent to the output photoelectric modular converter that connect corresponding to supporting the far-end unit of this communication standard by described data processing module; And input photoelectric conversion module by all sending to described in each after the Digital Signal Processing of output photoelectric modular converter transmission described in each;
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. the optical fiber distribution system supporting multi-communication standard access as claimed in claim 1, is characterized in that, expanding element described in each comprises light shunt/conjunction road module, input photoelectric conversion module, data processing module and multiple output photoelectric modular converter;
The multipath light signal of input is synthesized a road light signal and sends to described input photoelectric conversion module by described light shunt/conjunction road module; And the road light signal that described input photoelectric conversion module sends is divided into the identical light signal output of multichannel;
Described input photoelectric conversion module sends to described data processing module after converting the road light signal that described light shunt/conjunction road module sends to digital signal; And convert the digital signal that described data processing module sends to a road light signal to send to light shunt/conjunction road module;
Described data processing module all sends to output photoelectric modular converter described in each after the digital signal that described input photoelectric conversion module sends is carried out data processing; And send to described input photoelectric conversion module by after the Digital Signal Processing of output photoelectric modular converter transmission described in each;
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.
5. the optical fiber distribution system supporting multi-communication standard access as claimed in claim 4, is characterized in that, described light shunt/conjunction road module comprises N number of defeated light inlet, defeated light-emitting window, 1*N wavelength division multiplexer and a 1*N optical branching device; Wherein, N be greater than 1 natural number;
Described 1*N wavelength division multiplexer is exported by described defeated light-emitting window after the N road downlink optical signal of described N number of defeated light inlet input is synthesized a road light signal;
Described 1*N optical branching device exports respectively by described N number of defeated light inlet after part of traveling optical signal on the way of described defeated light-emitting window input is become N road light signal.
6. the optical fiber distribution system of the support multi-communication standard access 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 the digital signal sent with described input photoelectric conversion module after adding corresponding communication standard label together sends to described output photoelectric modular converter.
7. the optical fiber distribution system of the support multi-communication standard access as described in any one of claim 3 ~ 5, it is characterized in that, 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.
8. the optical fiber distribution system of the support multi-communication standard access as described in any one of claim 3 ~ 5, it is characterized in that, expanding element described in each also comprises power supply sub-module, powers for each far-end unit connected to described expanding element.
9. the optical fiber distribution system supporting multi-communication standard access as claimed in claim 1, it is characterized in that, 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.
10. a communication means, be applicable to support in the optical fiber distribution system of multi-communication standard access, 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, and far-end 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, according to the communication standard label in the light signal received, will send to the far-end 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 far-end unit is to be transmitted to user;
Uplink step: send to corresponding described expanding element by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit described in each; Described expanding element all sends to access unit described in each by after the optical signal prosessing received; Access unit described in each, according to the communication standard label in the light signal received, by the data filtering of communication standard do not supported, and converts the signal after filtering the radiofrequency signal of corresponding communication standard to send to corresponding information source.
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