CN105141362B - Realize the optical fiber distribution system and method for the different location information source access of multichannel - Google Patents

Realize the optical fiber distribution system and method for the different location information source access of multichannel Download PDF

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CN105141362B
CN105141362B CN201510410071.3A CN201510410071A CN105141362B CN 105141362 B CN105141362 B CN 105141362B CN 201510410071 A CN201510410071 A CN 201510410071A CN 105141362 B CN105141362 B CN 105141362B
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sent
signal
optical
module
data processing
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CN105141362A (en
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凌坚
石晶
周善明
容荣
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GCI Science and Technology Co Ltd
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GCI Science and Technology Co Ltd
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Abstract

The invention discloses a kind of optical fiber distribution systems for realizing the different location information source access of multichannel, connect including a main access unit and respectively the multiple from access unit, at least one expanding element of the connection main access unit of the main access unit, and at least one far-end unit being connect with the expanding element, wherein, the main access unit and each access unit support multiple communication standards of different operators respectively;In the downlink, each described add the radiofrequency signal received from access unit is sent to the main access unit after corresponding communication standard label by optical fiber;The main access unit adds the radiofrequency signal received after corresponding communication standard label with receiving come since the optical signal of access unit sends jointly to corresponding each expanding element;Each expanding element is sent to corresponding each far-end unit after the optical signal received is carried out data processing by optical fiber;Each far-end unit handles the optical signal received is transmitted to user to be converted into the radiofrequency signal of corresponding communication standard.

Description

Realize the optical fiber distribution system and method for the different location information source access of multichannel
Technical field
The present invention relates to electronic device field more particularly to a kind of optical fiber distribution systems for realizing the different location information source access of multichannel And method.
Background technology
China telecommunication passes through development long-term for many years, the situation for having gradually formed 2G/3G/4G and having deposited, mobile communication letter Number transmission is transmitted by certain frequency, and frequency and network formats that three big operators are possessed are not quite similar, at present It is respectively in the standard used in the market:
China Mobile:GSM800、GSM1800、TD-SCDMA、TD-LTE;
China Unicom:GSM800、GSM1800、WCDMA、TD-LTE、FDD-LTE;
China Telecom:CDMA、CDMA2000、TD-LTE、FDD-LTE.
It is above-mentioned not include the excessive standard that each generation communication technology generates in the process in speech also, thus it is not difficult to find out old China hand The standard that letter industry is being on active service is many, and it is just more numerous that each operator is based on used frequency under various communication standards Miscellaneous to differ, this communication present situation so that the arrangement and method for construction that signal covers is complicated, and difficulty of construction is big, easily formed coverage hole with Ping-pong covers the difficulty and cost of signal optimization, public resource is caused to waste after also increasing.
In this case, multi-service compartment system (MultiserviceDistributedAccessSystemSoluti On, MDAS) it comes into being, MDAS, as transmission medium, is supported more operators, supports multi-standard, overloading using cable/optical fiber Wave, and integrated WLAN (WirelessLAN, WLAN) system, a step solve voice and data traffic requirement, improve The accuracy of signal covering has been greatly reduced the complexity of signal covering engineering and the difficulty of construction maintenance, with traditional analog Compartment system is compared, and is provided simultaneously with mixed networking, delay compensation, automatic carrier track, uplink bottom are made an uproar the features such as low.
MDAS is mainly made of access unit (MAU/MU), expanding element (MEU/EU) and far-end unit (MRU/RU).
MDAS basic functional principles are as follows:
Downlink (base station --->User):The signal of base station/RRU is linked into after system and carries out number to signal by MU Processing is packed into digital signal, then convert digital signals into optical signals optical fiber by opto-electronic conversion and be transmitted to EU;EU will MU is handled by the signal that optical fiber transmits, then is transferred to RU by optical fiber;The signal processing that RU transmits EU amplifies Afterwards, it is covered away by antenna, is transferred to user.
Uplink (user --->Base station):After the information that user sends out is received by RU, RU to signal at Reason is transferred to EU by optical fiber again;All RU signals transmitted are digitized after processing is packaged and form light by opto-electronic conversion by EU Signal, then MU is transmitted to by optical fiber;After the digital signal of EU is packaged reduction by MU, it is transferred to base station/RRU.
Nowadays in the market the most basic structure composition of multi-service optical fiber distribution system currently in use as shown in Figure 1, but This basic structure can not meet practical application demand, and waste of resource, thus be by multi-service optical fiber distribution system System basic structure has derived following several concentration networking modes used in practical application scene:
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 extended capability using EU by the essence of 3 kinds of networking modes that basic structure is formed, EU support the extension of RU from And realize star-like networking mode;EU supports are to the expansion cascading of EU so as to fulfill chrysanthemum type networking mode;Two kinds of extended capability collection Use is closed so as to fulfill mixed networking mode.
The standard that the multi-service optical fiber distribution system of above-mentioned three kinds of networking modes is supported is with frequency range by a main access Unit (MU) determine, when MU only supports the standard and frequency range of China Mobile 2G/3G/4G, no matter more industry of which kind of networking mode Business optical fiber distribution system can only also cover and handle the communication service of China Mobile.It is needed if desired for the business of other operators is supported Asking just needs to replace entire multi-service optical fiber distribution system, including MU, EU and RU or installs the whole series additional again and supports other operators Standard and frequency range multi-service optical fiber distribution system.Such as:Unicom is extended on the basis of original has covered China Mobile's signal It covers, is accomplished by the following way with telecommunication signal:
It adds respectively again and supports unicom and the standard of telecommunications and the optical fiber distribution system of frequency range to cover respective signal, So realize that full signal covering need to just amount to 3 unjacketed optical fiber compartment systems, system rectification schematic diagram is as shown in Figure 5.
Above-mentioned realization method needs two sets or more of compartment system of setting, realizes that the whole network covers and is required to again or repeatedly Wholly-owned input, covering quantities will also be multiplied, and cause the wasting of resources.
As it can be seen that standard extension is carried out to the region covered using existing multi-service optical fiber distribution system to realize different location The multiple access of information source, quantities can be multiplied with cost, original serious waste of resources.
Invention content
The purpose of the embodiment of the present invention is to provide a kind of optical fiber distribution system and method for realizing the different location information source access of multichannel, Multi-service optical fiber distribution system can be effectively solved to carry out needing overlapping investment when communication standard extension is covered with the whole network, repeating afterwards The problem of construction.
An embodiment of the present invention provides a kind of optical fiber distribution systems for realizing the different location information source access of multichannel, are connect including a master Enter unit and connect multiple at least one expansions from access unit, the connection main access unit of the main access unit respectively Exhibition unit and at least one far-end unit being connect with the expanding element, wherein, the main access unit and each institute State the multiple communication standards for supporting different operators respectively from access unit;
In the downlink, it is each described the radiofrequency signal received to be added into corresponding communication standard mark from access unit The main access unit is sent to by optical fiber after label;The main access unit is corresponding logical by the radiofrequency signal received addition With receiving come since the optical signal of access unit sends jointly to corresponding each expanding element after letter standard label; Each expanding element will be sent to corresponding each described by optical fiber after the optical signal received progress data processing Far-end unit;The optical signal received is handled the radio frequency to be converted into corresponding communication standard by each far-end unit Signal is to be transmitted to user;
In the uplink, the radiofrequency signal addition that each far-end unit emits the user received is corresponding logical The corresponding expanding element is sent to by optical fiber after letter standard label;The optical signal prosessing that the expanding element will receive After be sent to the main access unit;After the main access unit receives optical signal, data are realized by following two modes Forwarding:
The slave access unit for supporting the communication standard, Mei Yisuo are transmitted to by the communication standard label orientation in optical signal It states from access unit by the signal received and is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each described from access unit The data filtering for the communication standard do not supported, and the signal after filtering is converted into the radiofrequency signal of corresponding communication standard to send out Give corresponding information source.
As the improvement of said program, it is each it is described from access unit include multiple radio-frequency modules, data processing module with And photoelectric conversion module;
Each described radio-frequency module corresponds to the radiofrequency signal for a communication standard for receiving same operator, and is converted into Digital signal is sent to the data processing module;And the digital signal for sending data processing module is converted into radiofrequency signal To be sent to corresponding information source;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds phase The communication standard label answered is sent to the photoelectric conversion module after being packed into digital signal;And by the opto-electronic conversion mould After the transformed digital signal dissection process of block, sent out by the data filtering for the communication standard do not supported, and by the signal after filtering Give corresponding radio-frequency module;
The photoelectric conversion module is used to the digital signal that the data processing module is sent being converted into optical signal output; And the optical signal of input is converted into digital signal and is sent to the data processing module.
In one embodiment provided by the invention, when the main access unit is using broadcast mode forwarding data, institute It states main access unit and includes multiple radio-frequency modules, data processing module, photoelectric conversion module and optical branching/combining module;
Each described radio-frequency module corresponds to the radiofrequency signal for a communication standard for receiving same operator, and is converted into Digital signal is sent to the data processing module;And the digital signal for sending data processing module is converted into radiofrequency signal To be sent to corresponding information source;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds phase The communication standard label answered is sent to the photoelectric conversion module after being packed into digital signal;And by the opto-electronic conversion mould After the transformed digital signal dissection process of block, sent out by the data filtering for the communication standard do not supported, and by the signal after filtering Give corresponding radio-frequency module;
The photoelectric conversion module is used to the digital signal that the data processing module is sent being converted into optical signal transmission To the optical branching/combining module;And the optical signal for sending optical branching/combining module is converted into digital signal and is sent to institute State data processing module;
The optical branching/combining module is by the photoelectric conversion module and each multichannel sent from access unit All the way after optical signal, it is single to be sent respectively to each extension to be separated into the identical optical signal of multichannel for downlink optical signal synthesis Member;And the multichannel uplink optical signal received is synthesized into optical signal all the way, the identical optical signal of multichannel is separated into send out respectively Give the photoelectric conversion module and each described from access unit.
As the improvement of said program, the optical branching/combining module include M input optical port, it is N number of export optical port, under Row processing unit and uplink processing unit;Wherein, M, N are natural number;
The downlink processing unit includes 1*M wavelength division multiplexers and 1*N optical branching devices, and the 1*M wavelength division multiplexers are by institute Stating the M roads optical signals synthesis of input optical port input, optical signal is sent to the 1*N optical branching devices, the 1*N optical branching devices all the way The optical signal all the way is divided into identical N roads optical signal to export by N number of output optical port respectively;
The uplink processing unit includes 1*N wavelength division multiplexers and 1*M optical branching devices, and the 1*N wavelength division multiplexers will be N number of Optical signal is sent to the 1*M optical branching devices all the way for the N roads optical signal synthesis of output optical port input, and the 1*M optical branching devices will The optical signal all the way is divided into identical M roads optical signal and is exported respectively by described M input optical port.
It is described when the main access unit is using orientation forwarding data in another embodiment provided by the invention Main access unit includes multiple radio-frequency modules, multiple input photoelectric conversion module, data processing module and multiple output photoelectrics Modular converter;
Each described radio-frequency module corresponds to the radiofrequency signal for a communication standard for receiving same operator, and is converted into Digital signal is sent to the data processing module;And the digital signal for sending data processing module is converted into radiofrequency signal To be sent to corresponding information source;
Each input photoelectric conversion module, which corresponds to, to be received one from the optical signal of access unit transmission and is converted to number Word signal is sent to the data processing module;And the digital signal for sending the data processing module is converted into optical signal Output;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds phase It is sent to together with the digital signal that each input photoelectric conversion module is sent after the communication standard label answered each described Output photoelectric modular converter;And by after each transformed digital signal dissection process of output photoelectric modular converter, root According to the communication standard label directive sending in digital signal to corresponding radio-frequency module or input photoelectric conversion module;
Each output photoelectric modular converter is used to the digital signal that the data processing module is sent being converted into light Signal exports;And the optical signal of input is converted into digital signal and is sent to the data processing module.
In another embodiment provided by the invention, each expanding element includes input photoelectric conversion module, number According to processing module and multiple output photoelectric modular converters;
The input photoelectric conversion module is used to be converted into the optical signal of input to be sent to the data after digital signal Processing module;And the digital signal for sending the data processing module is converted into optical signal to export;
After the digital signal progress data processing that the data processing module sends the input photoelectric conversion module It is sent to each output photoelectric modular converter;And the digital signal for sending each output photoelectric modular converter is closed Into optical signal all the way to be sent to the input photoelectric conversion module;
The digital signal that the data processing module is sent is converted into optical signal by each output photoelectric modular converter With output;And the optical signal of input is converted into digital signal to be sent to the data processing module.
In another embodiment provided by the invention, each expanding element includes input photoelectric conversion module, number According to processing module, output photoelectric modular converter and optical branching/combining module;
The input photoelectric conversion module is used to be converted into the optical signal of input to be sent to the data after digital signal Processing module;And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module is sent out after the digital signal that the input photoelectric conversion module is sent is carried out data processing Give the output photoelectric modular converter;And it is sent after the Digital Signal Processing sent according to the output photoelectric modular converter To the input photoelectric conversion module;
The digital signal all the way that the data processing module is sent is converted into light all the way by the output photoelectric modular converter Signal is to be sent to the optical branching/combining module;And the optical signal all the way of the optical branching/combining module input is converted Into digital signal all the way to be sent to the data processing module;
The optical branching/combining module is used to the optical signal all the way that the output photoelectric modular converter is sent being divided into multichannel Identical optical signal is to export;And optical signal is turned with being sent to the output photoelectric all the way by the multipath light signal synthesis of input Change the mold block.
Preferably, the optical branching/combining module includes an input optical port, N number of output optical port, 1*N wavelength division multiplexers With 1*N optical branching devices;Wherein, M, N are natural number.
The downlink optical signal all the way of the input optical port input is divided into the identical optical signal in N roads by the 1*N optical branching devices, It is exported respectively by N number of output optical port.The N roads uplink linght that the 1*N wavelength division multiplexers input N number of output optical port Signal passes through the input optical port output after synthesizing optical signal all the way.
As the improvement of said program, each expanding element further includes ethernet module, and the ethernet module is used In access network based on ethernet data, the data processing module is additionally operable at the Ethernet data sent to the ethernet module Reason, and after adding corresponding communication standard label institute is sent to together with the digital signal that the input photoelectric conversion module is sent State output photoelectric modular converter;
Preferably, each expanding element further includes monitoring module, for monitoring other moulds in the expanding element The working condition of block, and monitored results are sent to monitoring center.
Preferably, each expanding element further includes power supply sub-module, each for being connected to the expanding element Far-end unit is powered.
In one embodiment provided by the invention, each far-end unit be single system structure, each distal end Unit supports multiple communication standards of different operators respectively;Each far-end unit includes photoelectric conversion module, at data Manage module and RF Amplifier Module;
The photoelectric conversion module is used to the optical signal of reception being converted into digital signal to be sent to the data processing Module;And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module handles the digital signal that the photoelectric conversion module is sent, by far-end unit not The data filtering of the communication standard of support, and the signal after filtering is sent to the RF Amplifier Module;And it is penetrated described The digital signal that frequency amplification module is sent is sent to the photoelectric conversion module after adding corresponding communication standard label;
The signal that data processing module is sent is converted into radiofrequency signal and amplifies to be transmitted to by the RF Amplifier Module User;And it is sent to the data processing mould by digital signal is converted into after the radiofrequency signal amplification of the user received transmitting Block;
In another embodiment provided by the invention, each far-end unit is full system type pictorial structure, each described remote End unit includes photoelectric conversion module, data processing module and multiple RF Amplifier Modules, each RF Amplifier Module Multiple communication standards of same operator are only supported respectively;
The photoelectric conversion module is used to the optical signal of reception being converted into digital signal to be sent to the data processing Module;And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module handles the digital signal that the photoelectric conversion module is sent, and is believed according to number Communication standard label in number, by treated, digital signal is sent to supports the RF Amplifier Module of the communication standard;And The opto-electronic conversion mould is sent to after the digital signal that the RF Amplifier Module is sent is added corresponding communication standard label Block;
The signal that data processing module is sent is converted into radiofrequency signal and amplifies to send out by each RF Amplifier Module It penetrates to user;And it is sent to digital signal is converted into after the radiofrequency signal amplification of the user received transmitting at the data Manage module.
An embodiment of the present invention provides a kind of communication means, are adapted to carry out the fiber distribution system of the different location information source access of multichannel In system, wherein, the optical fiber distribution system include a main access unit and connect respectively the main access unit it is multiple from Access unit, at least one expanding element for connecting the main access unit and connect with the expanding element at least one A far-end unit, wherein, the main access unit and each described support the multiple of different operators respectively from access unit Communication standard;The method includes:
Downlink step:Described in each corresponding communication standard mark is added from access unit by the radiofrequency signal received The main access unit is sent to by optical fiber after label;The main access unit is corresponding logical by the radiofrequency signal received addition With receiving come since the optical signal of access unit sends jointly to corresponding each expanding element after letter standard label; Each expanding element will be sent to corresponding each described by optical fiber after the optical signal received progress data processing Far-end unit;The optical signal received is handled the radio frequency to be converted into corresponding communication standard by each far-end unit Signal is to be transmitted to user;
Uplink step:The radiofrequency signal addition that each far-end unit emits the user received is corresponding logical The corresponding expanding element is sent to by optical fiber after letter standard label;The optical signal prosessing that the expanding element will receive After be sent to the main access unit;After the main access unit receives optical signal, data are realized by following two modes Forwarding:
The slave access unit for supporting the communication standard, Mei Yisuo are transmitted to by the communication standard label orientation in optical signal It states from access unit by the signal received and is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each described from access unit The data filtering for the communication standard do not supported, and the signal after filtering is converted into the radiofrequency signal of corresponding communication standard to send out Give corresponding information source.
Compared with prior art, the optical fiber distribution system disclosed by the invention for realizing the access of multichannel different location information source by The communication standard label of different operators is added in uplink/downlink data packet, and up/down line number is realized according to communication standard label According to packet classification and orient forwarding or the communication standard number that uplink/downlink data packet is not supported filtered according to communication standard label According to so as to extend the access unit (MU) that different operators business is supported in access.Use the different location information source multichannel of the present invention The optical fiber distribution system of access covers an Operator Specific Service to a signal blind zone, needs to cover other Operator Specific Services During lid construction, it is only necessary to which extension access supports the access unit (MU) of other Operator Specific Services i.e. on original optical fiber distribution system Can, without adding whole set of system again, do not need to repeat to construct.Therefore it is significantly more efficient using existing resource, save operator Signal covers cost and reduces covering engineering construction difficulty.
Description of the drawings
Fig. 1 is a kind of basic structure schematic diagram of optical fiber distribution system in the prior art.
Fig. 2 is the structure diagram of the optical fiber distribution system formed using star-like networking mode.
Fig. 3 is the structure diagram of the optical fiber distribution system formed using chrysanthemum type networking mode.
Fig. 4 is the structure diagram of the optical fiber distribution system formed using mixed type networking mode.
Fig. 5 is a kind of structure diagram for the optical fiber distribution system for realizing different location information source in the prior art.
Fig. 6 is the structure of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 1 provides Schematic diagram.
Fig. 7 is that the master of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 2 provides connects Enter the structure diagram of unit.
Fig. 8 is the structure diagram of optical branching/combining module of main access unit shown in Fig. 7.
Fig. 9 is that the master of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 3 provides connects Enter another structure diagram of unit.
Figure 10 is a kind of optical fiber distribution system for realizing the access of multichannel different location information source that the embodiment of the present invention 4 provides from connecing Enter the structure diagram of unit.
Figure 11 is the extension of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 5 provides The structure diagram of unit.
Figure 12 is the extension of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 6 provides Another structure diagram of unit.
Figure 13 is the structural representation of one embodiment of the second optical branching/combining module in the expanding element shown in Figure 12 Figure.
Figure 14 is the distal end of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 7 provides The structure diagram of unit.
Figure 15 is the distal end of a kind of optical fiber distribution system for realizing the different location information source access of multichannel that the embodiment of the present invention 8 provides Another structure diagram of unit.
Figure 16 is a kind of work of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention Flow chart.
Figure 17 is a kind of optical fiber distribution system for being adapted to carry out the different location information source access of multichannel that the embodiment of the present invention 9 provides Communication means flow chart.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention referring to Fig. 6 Structure diagram.As shown in the figure, the optical fiber distribution system of the different location information source access of the realization multichannel includes a main access unit MU Multiple at least one expansions from access unit MU, the connection main access unit MU of the main access unit MU are connected respectively Exhibition unit EU and at least one far-end unit RU of EU is connect with the expanding element, wherein, the main access unit MU with And each multiple communication standards for supporting different operators respectively from access unit MU.
For example, the optical fiber distribution system of the present embodiment includes three access units MU1, MU2 and MU3, wherein, MU2 is Main access unit, MU1 and MU3 are from access unit.MU1 only support operator of China Mobile multiple communication standards (including GSM800, GSM1800, TD-SCDMA, TD-LTE), MU2 only support China Unicom operator multiple communication standards (including GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE), MU3 only support China Telecom multiple communication standards (including CDMA、CDMA2000、TD-LTE、FDD-LTE).The optical fiber distribution system of the present embodiment include 6 expanding element EU1, EU2, The upstream data input terminal (downlink data output terminal) of EU3, EU4, EU5 and EU6, wherein EU1, EU2, EU3 by optical fiber with Upstream data output terminal (downlink data input terminal) connection of main access unit MU2.And the upstream data of each expanding element EU Output terminal, which is divided into, can not connect multiple expanding elements, for example, the upstream data output terminal of expanding element EU1 is connected to 8 far End unit RU1, RU2, RU3, RU4, RU5, RU6, RU7 and RU8.
In addition, the upstream data output terminal (downlink data input terminal) of each expanding element EU can also be with another extension Unit EU connections are further to realize that the extension of data is transmitted, for example, upstream data output terminal (the lower line number of expanding element EU3 According to input terminal) it is connect with the upstream data input terminal (downlink data output terminal) of expanding element EU4, and expanding element EU4's is upper Row data output end (downlink data input terminal) and the upstream data input terminal (downlink data output terminal) of expanding element EU5 connect It connects ....
It should be understood that in this embodiment, each described access unit uses single system structure, each extension is single First EU uses full system type pictorial structure, and full system type pictorial structure or single system structure can be used in the far-end unit.Wherein, single system structure Refer to only support multiple communication standards of single operator (for example, only supporting the logical of China Mobile/China Unicom/China Telecom Believe standard);And full system type pictorial structure is to refer to support the communication standards of all operators (for example, supporting China Mobile, middle League of Nations Logical and China Telecom whole communication standards).
It should be understood that the networking mode of EU and RU is using mixed networking side in the optical fiber distribution system that Fig. 6 is shown Formula, but star-like networking or chrysanthemum type networking mode also can be used in the optical fiber distribution system of the present embodiment.
It is each described the radiofrequency signal received to be added into phase from access unit in the downlink formed in the present embodiment The main access unit is sent to by optical fiber after the communication standard label answered;The main access unit believes the radio frequency received After number corresponding communication standard label of addition with receive come since the optical signal of access unit send jointly to it is corresponding often One expanding element;Each expanding element is sent to after the optical signal received is carried out data processing by optical fiber Corresponding each far-end unit;Each far-end unit handles the optical signal received corresponding to be converted into The radiofrequency signal of communication standard is to be transmitted to user;
In the uplink formed in the present embodiment, each far-end unit believes the radio frequency that the user received emits The corresponding expanding element is sent to by optical fiber after number corresponding communication standard label of addition;The expanding element will receive To optical signal prosessing after be sent to the main access unit;After the main access unit receives optical signal, pass through following two Kind mode realizes data forwarding:
The slave access unit for supporting the communication standard, Mei Yisuo are transmitted to by the communication standard label orientation in optical signal It states from access unit by the signal received and is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each described from access unit By the data filtering for the communication standard do not supported, and by the signal after filtering be converted into the radiofrequency signal of corresponding communication standard with It is sent to corresponding information source.
As it can be seen that main access devices of the main access unit MU of the present embodiment as entire optical fiber distribution system, for passing through Feeder line couples the downlink radio-frequency signal of base station/RRU, and carries out digital processing to the radiofrequency signal and be packed into digital signal, so Carrying out opto-electronic conversion to the digital signal afterwards becomes optical signal;Then by optical signal and other send over from access unit MU Data are packaged together is uniformly sent to each EU;And the uplink optical signal from EU is received, by opto-electronic conversion by optical signal Digital signal is converted to, and realizes data forwarding.According to the difference of pass-through mode, main access unit MU uses different structures, It describes separately below.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 7 The structure diagram of main access unit MU.Wherein, the main access unit MU of the present embodiment is forwarded data to respectively using broadcast mode It is a from access unit MU.
Turn specifically, the main access unit MU of the present embodiment includes multiple radio-frequency modules 11, data processing module 12, photoelectricity Block 13 and optical branching/combining module 19 are changed the mold, wherein:
Each described radio-frequency module 11 is equipped with prevention at radio-frequency port, and a communication for receiving same operator is corresponded to by feeder line The radiofrequency signal of standard, and be converted into digital signal and be sent to the data processing module 12;And by data processing module 12 The digital signal of transmission is converted into radiofrequency signal to be sent to corresponding information source;
The data processing module 12 is used for the radiofrequency signal digitized processing for receiving the radio-frequency module 11, and adds Corresponding communication standard label is added to be sent to the photoelectric conversion module 13 after being packed into digital signal;And by the photoelectricity After 13 transformed digital signal dissection process of modular converter, by the data filtering for the communication standard do not supported, and will be after filtering Signal be sent to corresponding radio-frequency module 11;
The photoelectric conversion module 13 is used to the digital signal that the data processing module 12 is sent being converted into optical signal It is sent to the optical branching/combining module 19;And the optical signal for being sent to the optical branching/combining module transmission is converted into Digital signal is sent to the data processing module 12.
The optical branching/combining module 19 is by the photoelectric conversion module 13 and each described is sent from access unit MU Multichannel downlink optical signal synthesis all the way after optical signal, be separated into the identical optical signal of multichannel to be sent respectively to each expansion Open up unit EU;And by the multichannel uplink optical signal received synthesis optical signal all the way, be separated into the identical optical signal of multichannel with It is sent respectively to the photoelectric conversion module 13 and each described from access unit MU.
Preferably, the access unit MU of the present embodiment further includes power module 14 and monitoring module 15, wherein, power module 14 are used for each function module in MU (including radio-frequency module 11, data processing module 12, photoelectric conversion module 13, light Branch/combining module 19 and monitoring module 15) power supply.And the monitoring module 15 is each in the access unit for monitoring A function module is (including radio-frequency module 11, data processing module 12, photoelectric conversion module 13, optical branching/combining module 19 and electricity Source module 14) working condition, and monitored results are timely transmitted to monitoring center, to ensure the normal work of access unit.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 8 The structure diagram of optical branching/combining module 19.Optical branching/the combiner 19 includes M input optical port 101, N number of output light Mouth 104, downlink processing unit and uplink processing unit;Wherein, M, N are natural number.
The downlink processing unit includes 1*M wavelength division multiplexer 102a and 1*N optical branching device 102b, and the 1*M wavelength-divisions are answered The M roads optical signal that the input optical port 101 inputs is synthesized into optical signal all the way with device and is sent to the 1*N optical branching devices 102b, The optical signal all the way is divided into identical N roads optical signal respectively by N number of output optical port by the 1*N optical branching devices 102b 104 outputs;
The uplink processing unit includes 1*N wavelength division multiplexer 103a and 1*M optical branching device 103b, and the 1*N wavelength-divisions are answered The N roads optical signal that N number of output optical port 104 inputs is synthesized into optical signal all the way with device 103a and is sent to the 1*M optical branching devices It is defeated by the M respectively that the optical signal all the way is divided into identical M roads optical signal by 103b, the 1*M optical branching devices 103b Light inlet 101 exports.
It needs illustratively, 1*N wavelength division multiplexers are used for a series of carrying informations but the different N roads optical signal of wavelength It synthesizes a branch of, realizes and transmit multiple signals on an optical fiber, all transmitted per signal all the way by the light of certain specific wavelength.And For 1*N optical branching devices by scores such as 1 road optical signals into the identical optical signal in N roads, the wavelength that these multipath light signals contain is identical , the data contained are also identical.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 9 Another structure diagram of main access unit MU.Wherein, the main access unit MU of the present embodiment is forwarded data to each using orientation It is a from access unit MU.
Specifically, the main access unit MU of the present embodiment includes multiple radio-frequency modules 11, multiple input photoelectric conversion module 18th, data processing module 12 and multiple output photoelectric modular converters 13, wherein:
Each described radio-frequency module 11 is equipped with prevention at radio-frequency port, and a communication for receiving same operator is corresponded to by feeder line The radiofrequency signal of standard, and be converted into digital signal and be sent to the data processing module 12;And by data processing module 12 The digital signal of transmission is converted into radiofrequency signal to be sent to corresponding information source;
Each input photoelectric conversion module 18, which corresponds to, receives one from the access unit MU optical signals sent and conversion The data processing module 12 is sent to for digital signal;And the digital signal for sending the data processing module 12 is converted It is exported into optical signal;
The data processing module 12 is used for the radiofrequency signal digitized processing for receiving the radio-frequency module 11, and adds Add after corresponding communication standard label that (packing) is sent out together with the digital signal that each input photoelectric conversion module 18 is sent Give each output photoelectric modular converter 13;It and will be at the 13 transformed digital signal parsing of photoelectric conversion module After reason, the communication standard label directive sending in digital signal is to corresponding radio-frequency module 11 or input photoelectric conversion module 18;For example, when the digital signal that data processing module 22 receives the transmission of output photoelectric modular converter 13 is included in band The data of communication standard label, the data of communication standard label of China Telecom and the communication standard mark of China Unicom of state's movement When signing data, then the communication standard label with China Mobile is sent to MU1 pairs of the slave access unit with supporting the communication standard Communication standard label with China Telecom is sent to supporting the communication standard by the input photoelectric conversion module 18 that should be connected The input photoelectric conversion module 18 being correspondingly connected with from access unit MU3, and by the locally-supported communication standard with China Unicom Label data is sent to corresponding radio-frequency module 11 according to label.
The output photoelectric modular converter 13 is used to the digital signal that the data processing module 12 is sent being converted into light Signal exports;And the optical signal of input is converted into digital signal and is sent to the data processing module 12.
Preferably, the access unit MU of the present embodiment further includes power module 14 and monitoring module 15, concrete structure and Effect please refers to above-described embodiment.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 10 From the structure diagram of access unit MU.Specifically, turn including multiple radio-frequency modules 11, data processing module 12 ' and photoelectricity Block 13 is changed the mold, wherein:
Each described radio-frequency module 11 is equipped with prevention at radio-frequency port, and a communication for receiving same operator is corresponded to by feeder line The radiofrequency signal of standard, and be converted into digital signal and be sent to the data processing module 12;And by data processing module 12 The digital signal of transmission is converted into radiofrequency signal to be sent to corresponding information source;
The data processing module 12 ' for the radiofrequency signal digitized processing that receives the radio-frequency module 11, and It adds after corresponding communication standard label is packed into digital signal and is sent to the photoelectric conversion module 13;And by the light After electric 13 transformed digital signal dissection process of modular converter, by the data filtering for the communication standard do not supported (if corresponding connect When the main MU connect forwards the structure of data using orientation, then data filtering step need not be carried out), and believed according to the number after filtering Communication standard label in number is sent to corresponding radio-frequency module 11;
The photoelectric conversion module 13 connects main access unit MU, for the number for sending the data processing module 12 ' Word signal is converted into optical signal and exports to main access unit MU;And the optical signal of input is converted into digital signal and is sent to institute State data processing module 12 '.
Preferably, the slave access unit MU of the present embodiment further includes power module 14 and monitoring module 15, concrete structure Above-described embodiment is can refer to effect.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 11 The structure diagram of expanding element EU.In the present embodiment, each expanding element EU can realize the extension and combining of optical signal, The optical signal that radiofrequency signal under existing all communication standards is formed after MU processing conversions can be received, be forwarded and extension.Also It can realize power extension and meet the power demands of multichannel far-end unit RU, the power supply to RU or EU is supported to extend.
Specifically, the expanding element EU of the present embodiment include input photoelectric conversion module 21, data processing module 22 and Multiple output photoelectric modular converters 23;
The input photoelectric conversion module 21 is correspondingly connected with main access unit MU, and (be equipped with optical port) is for by the light inputted Signal is sent to the data processing module 22 after being converted into digital signal;And the number for sending the data processing module 22 Word signal is converted into optical signal to export to the main access unit MU;
The digital signal that the input photoelectric conversion module 21 is sent is carried out data processing by the data processing module 22 Each output photoelectric modular converter 23 is sent to after (subpackage);And each output photoelectric modular converter 23 is sent out The digital signal sent is sent to the input photoelectric conversion module 21 after carrying out data processing (packing).
Each output photoelectric modular converter 23 (being equipped with optical port) is correspondingly connected with a far-end unit RU or extension is single First EU, the digital signal for the data processing module 22 to be sent are converted into optical signal to export to corresponding far-end unit RU or expanding element EU;And the optical signal of input is converted into digital signal to be sent to the data processing module 22.
Preferably, in the present embodiment, each expanding element EU is further included connect with the data processing module 22 Ethernet module 26, the ethernet module 26 is used for access network based on ethernet data, and is sent to the data processing module 22. After the data processing module 22 receives the Ethernet data that the ethernet module 26 is sent, corresponding communication standard mark is added After label with it is each it is described input photoelectric conversion module send digital signal together be packaged after again subpackage be sent to it is each described defeated Go out photoelectric conversion module 23.
As the improvement of said program, each expanding element EU further includes power extension module 25, for described Each far-end unit RU power supplies of expanding element EU connections.
As the improvement of said program, each expanding element EU further includes monitoring module 24, for monitoring the expansion Each function module in unit EU is opened up (including input photoelectric conversion module 21, data processing module 22, output photoelectric conversion Module 23, ethernet module 26 and power extension module 25) working condition, and monitored results are timely transmitted in monitoring The heart, to ensure the normal work of expanding element.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 12 Another structure diagram of expanding element EU.Specifically, the expanding element EU of the present embodiment include input photoelectric conversion module 21, Data processing module 22, output photoelectric modular converter 23 and the second optical branching/combining module 29;
The input photoelectric conversion module 21 is correspondingly connected with main access unit MU, and (be equipped with optical port) is for by the light inputted Signal is sent to the data processing module 22 after being converted into digital signal;And the number for sending the data processing module 22 Word signal is converted into optical signal to export to main access unit MU;
The digital signal that the input photoelectric conversion module 21 is sent is carried out data processing by the data processing module 22 It is sent to the output photoelectric modular converter 23 afterwards;And at the digital signal for sending the output photoelectric modular converter 23 The input photoelectric conversion module 21 is sent to after reason;
The digital signal all the way that the data processing module 22 is sent is converted into one by the output photoelectric modular converter 23 Road optical signal is to be sent to second optical branching/combining module 29;And second optical branching/combining module 29 is inputted Optical signal all the way be converted into all the way digital signal to be sent to the data processing module 22;
Second optical branching/combining module 29 is used for the optical signal all the way for sending the output photoelectric modular converter 23 It is divided into the identical optical signal of multichannel to export to far-end unit RU or expanding element EU;And the multipath light signal of input is synthesized Optical signal is to be sent to the output photoelectric modular converter 23 all the way.
In addition, the expanding element EU of the present embodiment also includes ethernet module 26, power extension module 25 and monitoring module 24, concrete structure and effect are consistent with shown in Figure 11, omit description herein.
Wherein, structure as shown in fig. 13 that can be used in second optical branching of the present embodiment/combining module 29.Second light point Road/combining module 29 includes an input optical port 290, N number of output optical port 293,1*N wavelength division multiplexers 291 and 1*N optical branching devices 292;
It is identical that the downlink optical signal all the way that inputs of input optical port 290 is divided into N roads by the 1*N optical branching devices 292 Optical signal is exported respectively by N number of output optical port 293;
The N roads traveling optical signal that N number of output optical port 293 inputs is synthesized light all the way by the 1*N wavelength division multiplexers 291 It is exported after signal by the input optical port 290.
As it can be seen that the expanding element EU of the present embodiment can also realize the function shown in Figure 11, unlike, the expansion of the present embodiment Exhibition unit EU, which removes multiple output photoelectric modules 23 of the export expansion branch of the expanding element EU shown in Figure 11, leaves behind one Road output photoelectric modular converter 23, transformed optical signals optical branching/combining module 29 is divided to be expanded for multipath light signal with realizing The function of exhibition, under certain condition, such as the optical signal that output photoelectric modular converter 23 exports is sufficiently strong or optical signal passes through Attenuation after optical fiber is small, then the second optical branching/29 port number of combining module can be unrestricted, and the advantages of this mode just dashes forward Expanding element EU extension quantity and the extension unmodifiable bottleneck of quantity are broken.Common expanding element EU extensions quantity is 8 tunnels, and Can be easily in this way 16 or 32 etc. by optical signal branch.Determine it can also being realized to EU extension RU quantity System, such as 3 tunnels or 5 tunnels or the output of 11 tunnels, and only need to change optical branching module and modification to output port number can be realized.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 14 The structure diagram of far-end unit RU.Wherein, the far-end unit RU of the present embodiment uses single system structure, i.e., each distal end Unit R U supports multiple communication standards of different operators respectively.Specifically, each far-end unit RU includes opto-electronic conversion Module 31, data processing module 32, RF Amplifier Module 33.Wherein:
The photoelectric conversion module 31 (being equipped with optical port) is correspondingly connected with expanding element EU by optical fiber, for what will be received Optical signal is converted into digital signal to be sent to the data processing module 32;And send the data processing module 32 Digital signal is converted into optical signal to export to corresponding expanding element;
The digital signal that the photoelectric conversion module 31 is sent is handled (data solution by the data processing module 32 Packet), the data filtering for the communication standard that itself is not supported, and the signal after filtering is sent to the RF Amplifier Module 33;And it is sent to the light after digital signal that the RF Amplifier Module 33 is sent is added corresponding communication standard label Electric modular converter 31.For example, when the data processing module 32 receives the digital signal of the transmission of photoelectric conversion module 31 In comprising China Mobile's standard data and China Unicom communication standard data when, if far-end unit RU is in itself Only support China Mobile standard, then, the data processing module 32 comprising China Unicom by communicating in after unpacking The data filtering of standard, the remaining data comprising China Mobile's standard are sent to RF Amplifier Module 33.In addition, work as institute When stating in data processing module 32 comprising the Ethernet data of communication standard itself supported, then (pass through corresponding port) directly It is sent to the computer terminal of connection Ethernet.
The signal that data processing module 32 is sent is converted into radiofrequency signal and amplifies to send out by the RF Amplifier Module 33 It penetrates and gives user's (mobile terminal);And it is sent to digital signal is converted into after the radiofrequency signal amplification of the user received transmitting The data processing module 32.
Preferably, the far-end unit RU of the present embodiment is further included by electric module 34 and monitoring module 35, described by electric module 34 for connecting the power extension module 25 of expanding element EU, for each work(by the electric energy received into far-end unit RU It can module (including photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33 and monitoring module 35) power supply.It is described Monitoring module 35 is used to monitor each function module in the far-end unit RU (at photoelectric conversion module 31, data Manage module 32, RF Amplifier Module 33 and by electric module 34) working condition, and monitored results are timely transmitted in monitoring The heart, to ensure the normal work of far-end unit RU.
It is a kind of optical fiber distribution system for realizing the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 15 Another structure diagram of far-end unit RU.Wherein, the far-end unit RU of the present embodiment uses full system type pictorial structure, i.e. the present embodiment Far-end unit RU support all communication standards of various operators.
Specifically, far-end unit RU includes photoelectric conversion module 31, data processing module 32 and the amplification of multiple radio frequencies Module 33, each RF Amplifier Module 33 support multiple communication standards of different operators respectively, wherein:
The photoelectric conversion module 31 (being equipped with optical port) is correspondingly connected with expanding element EU by optical fiber, for what will be received Optical signal is converted into digital signal to be sent to the data processing module 32;And send the data processing module 32 Digital signal is converted into optical signal to export to corresponding expanding element;
The digital signal that the photoelectric conversion module 31 is sent is handled (data solution by the data processing module 32 Packet), and the communication standard label in digital signal, by treated, digital signal is sent to penetrating for the support communication standard Frequency amplification module 33;And it is sent out after digital signal that the RF Amplifier Module 33 is sent is added corresponding communication standard label Give the photoelectric conversion module 31;For example, it is sent when the data processing module 32 receives the photoelectric conversion module 31 Digital signal in comprising China Mobile's standard data and China Unicom communication standard data when, then will include China The data correspondence of mobile communication standard is sent to the RF Amplifier Module 33 for supporting the communication standard, and will lead to comprising China Unicom The data of letter standard are sent to another RF Amplifier Module 33 for supporting the communication standard.Likewise, when the data processing mould When in block 32 comprising the Ethernet data of communication standard itself supported, then (pass through corresponding port) and be transmitted directly to connection with The computer terminal netted very much.
The signal that data processing module 32 is sent is converted into radiofrequency signal and amplification by each RF Amplifier Module 33 To be transmitted to user;And it is sent to the number by digital signal is converted into after the radiofrequency signal amplification of the user received transmitting According to processing module 32.
In addition, the far-end unit RU of the present embodiment also includes by electric module 34 and monitoring module 35, concrete structure and function Please refer to above-described embodiment.
In the following, with reference to Figure 16, to a kind of fiber distribution for realizing the different location information source access of multichannel provided in an embodiment of the present invention The operation principle of system is described in detail.Optical fiber distribution system operation principle provided in this embodiment is as follows:
Downlink
Step 1:MU data receivers
The MU (including main MU and from MU) of single system structure receives information source and is sent to MU respective radio-frequencies port by feeder line Radiofrequency signal.
Step 2:MU data processings
The radiofrequency signal digitized processing that the radio-frequency module of MU will receive, and communication system is added by data processing module Formula label is packed into digital signal, and digital signal is converted into optical signal by photoelectric conversion module and exports.
Step 3:MU data are sent
It is each from MU by the way that respective optical signal is sent to main MU with the optical fiber that main MU is connected, main MU is by each from MU The downlink optical signal for being transmitted through is combined into optical signal all the way together with the optical signal of itself, and being further divided into N roads, (N is to access system EU Number) identical optical signal, the optical port of each EU is sent to by optical fiber.
Step 4:EU data receivers
EU optical ports receive the downlink optical signal for carrying out autonomous MU, and accessing all EU of the system respectively need to only use a pair of of light It is fine to be connect with main MU.Meanwhile Ethernet data is linked into EU by the Ethernet interface of EU.
Step 5:EU data processings
The optical signal received is converted to electric signal by EU by photoelectric conversion module, the electric signal and Ethernet data one With the data processing module to EU is sent to carry out data processing packing, and form the digital signal of multichannel, pass through multichannel opto-electronic conversion Module (or optical branching/combining module) is converted into optical signal and send to optical port respectively.
Step 6:EU data are sent
Optical signals composite fiber is sent to the optical port of EU or RU by EU by extending optical port (containing power cord).
Step 7:RU data receivers
RU optical ports receive the optical signal from EU.
Step 8:RU data processings
The optical signal of reception is converted to digital signal by RU by photoelectric conversion module, when RU uses single system structure, The data processing module of RU is lost the data filtering of the RU communication standards do not supported, so by identifying communication standard flag bit The data after filtering are sent to RF Amplifier Module afterwards and are converted to radiofrequency signal, are sent by signal amplification;When RU is adopted During with full system type pictorial structure, the data processing module of RU by identifying communication standard flag bit, by different systems data packet respectively into Row data dissection process, forms new digital signal, and is distributed to the corresponding RF Amplifier Module of standard and is converted to radio frequency letter Number, it is sent by signal amplification.
Step 9:RU signals cover
Radiofrequency signal coupled to antenna, is gone out signal radiation by antenna to realize signal covering, user terminal by feeder line Receive the transmission that data complete a downlink signal.
Uplink
Step 1:RU data receivers
User terminal sends signal in compartment system coverage area, and the communication standard of the signal is supported by RU.
Step 2:RU data processings
RU receives the radiofrequency signal that user terminal is sent out, and digital signal, the number of RU are reconverted into after amplification The data are handled according to processing module and add communication standard label, then that photoelectric conversion module is transferred to be converted to optical signal is defeated Go out.
Step 3:RU data are sent
Optical signals composite fiber (containing power cord) is sent to the optical port of EU by RU by optical port.
Step 4:EU data receivers
EU optical ports receive the optical signal from RU.
Step 5:EU data processings
The optical signal of reception is converted to electric signal by the photoelectric conversion module of EU, and data processing module processing is transferred to be formed New data packet, while according to the communication standard label of data packet, new data packet is sent to the corresponding light of communication standard Electric modular converter or ethernet module are sent to photoelectric conversion module and are then converted into optical signal after it receives data packet, If being sent to ethernet module, I nternet are transferred data to by ethernet module.
Step 6:EU data are sent
EU is by the optical port corresponding to the photoelectric conversion module selected according to data standard label, by uplink optical signal Main MU optical ports are sent to by optical fiber.
Step 7:MU data receivers
Main MU optical ports receive the uplink optical signal from EU.
Step 8:MU data processings
When structures of the main MU using orientation forwarding data, main MU is converted the optical signal of reception by photoelectric conversion module For electric signal, while judge communication standard label, data orientation is transmitted to according to communication standard label and supports the communication standard Slave MU or by itself support communication standard data be sent to radio-frequency module, be converted to radiofrequency signal.It is each to be received from MU Digital signal is converted into after optical signal and is sent to radio-frequency module, is converted to radiofrequency signal.
When structures of the main MU using broadcast mode forwarding data, main MU and the optical branching/combining mould for passing through main MU from MU Block is respectively received the optical signal of EU transmissions, after main MU and each forwarded upstream data that main MU is received from MU, judges each The uplink communication standard label of data packet, retains one's own data packet, and discarding is not belonging to the data packet of oneself, main MU with it is each After a data processing module from MU carries out data dissection process to respective data packet, radio-frequency module is sent to, is converted to and penetrates Frequency signal.
Step 9:MU signals upload
Radiofrequency signal, coupled to base station/RRU, completes the transmission of a uplink signal by feeder line.
It is a kind of fiber distribution for being adapted to carry out the different location information source access of multichannel provided in an embodiment of the present invention with reference to figure 17 The flow chart of the communication means of system.Wherein, described in the optical fiber distribution system is connected including a main access unit and respectively Main access unit it is multiple from access unit, the connection main access unit at least one expanding element and with the expansion At least one far-end unit of unit connection is opened up, wherein, it the main access unit and each described is propped up respectively from access unit Hold multiple communication standards of different operators;The method includes:
Step S1501, downlink step:It is each described from access unit that the radiofrequency signal received addition is corresponding The main access unit is sent to by optical fiber after communication standard label;The main access unit adds the radiofrequency signal received Add after corresponding communication standard label with receiving come since the optical signal of access unit sends jointly to corresponding each institute State expanding element;Each expanding element is sent to correspondence after the optical signal received is carried out data processing by optical fiber Each far-end unit;Each far-end unit handles the optical signal received to be converted into communicating accordingly The radiofrequency signal of standard is to be transmitted to user;
Step S1502, uplink step:Each far-end unit adds the radiofrequency signal that the user received emits Add and the corresponding expanding element is sent to by optical fiber after corresponding communication standard label;The expanding element will receive The main access unit is sent to after optical signal prosessing;After the main access unit receives optical signal, pass through following two sides Formula realizes data forwarding:
The slave access unit for supporting the communication standard, Mei Yisuo are transmitted to by the communication standard label orientation in optical signal It states from access unit by the signal received and is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each described from access unit By the data filtering for the communication standard do not supported, and by the signal after filtering be converted into the radiofrequency signal of corresponding communication standard with It is sent to corresponding information source.
In conclusion the optical fiber distribution system disclosed by the invention for realizing the different location information source access of multichannel and method pass through upper The communication standard label of different operators is added in downlink data packet, and uplink and downlink data packet is realized according to communication standard label Classification and orient forwarding, so as to can extend access support different operators business access unit (MU).Use this The optical fiber distribution system of the different location information source multiple access of invention covers an Operator Specific Service to a signal blind zone, needs to it When his Operator Specific Service carries out covering construction, it is only necessary to which other operation business are supported in extension access on original optical fiber distribution system The access unit (MU) of business, without with changing whole system or adding whole set of system again, not needing to repeat to construct.Therefore more Add effectively using existing resource, save operator's signal covering cost and reduce covering engineering construction difficulty.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (10)

1. a kind of optical fiber distribution system for realizing the access of multichannel different location information source, which is characterized in that including a main access unit and The multiple from access unit, at least one expanding element of the connection main access unit of the main access unit are connected respectively, And at least one far-end unit being connect with the expanding element, wherein, the main access unit and each described from connecing Enter multiple communication standards that unit supports different operators respectively;
In the downlink, it is each described after the radiofrequency signal received is added corresponding communication standard label by access unit The main access unit is sent to by optical fiber;The radiofrequency signal received is added corresponding communication system by the main access unit With receiving come since the optical signal of access unit sends jointly to corresponding each expanding element after formula label;It is each The expanding element is sent to corresponding each distal end after the optical signal received is carried out data processing by optical fiber Unit;The optical signal received is handled the radiofrequency signal to be converted into corresponding communication standard by each far-end unit To be transmitted to user;Wherein, the processing of the optical signal received is included being converted into counting by the optical signal received Word signal, and the signal that the communication standard is corresponded in the digital signal is converted into the radiofrequency signal;
In the uplink, the corresponding communication system of radiofrequency signal addition that each far-end unit emits the user received The corresponding expanding element is sent to by optical fiber after formula label;The expanding element will be sent out after the optical signal prosessing received Give the main access unit;After the main access unit receives optical signal, data forwarding is realized by following two modes:
Be transmitted to the slave access unit for supporting the communication standard by communication standard label in optical signal orientation, it is each it is described from The signal received is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source by access unit;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each it is described will not from access unit The data filtering of the communication standard of support, and the signal after filtering is converted into the radiofrequency signal of corresponding communication standard to send To corresponding information source.
2. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that each described Include multiple radio-frequency modules, data processing module and photoelectric conversion module from access unit;
Each described radio-frequency module corresponds to the radiofrequency signal for a communication standard for receiving same operator, and is converted into number Signal is sent to the data processing module;And the digital signal for sending data processing module is converted into radiofrequency signal to send out Give corresponding information source;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds corresponding Communication standard label is sent to the photoelectric conversion module after being packed into digital signal;And the photoelectric conversion module is turned After digital signal dissection process after changing, it is sent to by the data filtering for the communication standard do not supported, and by the signal after filtering Corresponding radio-frequency module;
The photoelectric conversion module is used to the digital signal that the data processing module is sent being converted into optical signal output;And The optical signal of input is converted into digital signal and is sent to the data processing module.
3. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that as the master When access unit is using broadcast mode forwarding data, the main access unit includes multiple radio-frequency modules, data processing module, light Electric modular converter and optical branching/combining module;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds corresponding Communication standard label is sent to the photoelectric conversion module after being packed into digital signal;And the photoelectric conversion module is turned After digital signal dissection process after changing, it is sent to by the data filtering for the communication standard do not supported, and by the signal after filtering Corresponding radio-frequency module;
The photoelectric conversion module is sent to institute for the digital signal that the data processing module is sent to be converted into optical signal State optical branching/combining module;And the optical signal for sending optical branching/combining module is converted into digital signal and is sent to the number According to processing module;
The optical branching/combining module is by the photoelectric conversion module and each multichannel downlink sent from access unit Optical signal synthesis after optical signal, is separated into the identical optical signal of multichannel to be sent respectively to each expanding element all the way;With And the multichannel uplink optical signal received is synthesized into optical signal all the way, the identical optical signal of multichannel is separated into be sent respectively to State photoelectric conversion module and each described from access unit.
4. the optical fiber distribution system of the different location information source access of multichannel is realized as claimed in claim 3, which is characterized in that the light point Road/combining module includes M input optical port, N number of output optical port, downlink processing unit and uplink processing unit;Wherein, M is big Natural number, N in one are non-zero natural number;
The downlink processing unit includes 1*M wavelength division multiplexers and 1*N optical branching devices, and the 1*M wavelength division multiplexers will be described defeated Optical signal is sent to the 1*N optical branching devices all the way for the M roads optical signals synthesis of light inlet input, and the 1*N optical branching devices are by institute It states optical signal all the way and is divided into identical N roads optical signal respectively by N number of output optical port output;
The uplink processing unit includes 1*N wavelength division multiplexers and 1*M optical branching devices, and the 1*N wavelength division multiplexers are by N number of output Optical signal is sent to the 1*M optical branching devices all the way for the N roads optical signal synthesis of optical port input, and the 1*M optical branching devices are by described in Optical signal is divided into identical M roads optical signal and is exported respectively by described M input optical port all the way.
5. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that as the master When access unit is using orientation forwarding data, the main access unit includes multiple radio-frequency modules, multiple input opto-electronic conversion mould Block, data processing module and multiple output photoelectric modular converters;
Each input photoelectric conversion module, which corresponds to, to be received one from the optical signal of access unit transmission and is converted to digital letter Number it is sent to the data processing module;And to be converted into optical signal defeated for the digital signal for sending the data processing module Go out;
The data processing module is used for the radiofrequency signal digitized processing for receiving the radio-frequency module, and adds corresponding After communication standard label each output is sent to together with the digital signal that each input photoelectric conversion module is sent Photoelectric conversion module;And by after each transformed digital signal dissection process of output photoelectric modular converter, according to number Communication standard label directive sending in word signal is to corresponding radio-frequency module or input photoelectric conversion module;
Each output photoelectric modular converter is used to the digital signal that the data processing module is sent being converted into optical signal Output;And the optical signal of input is converted into digital signal and is sent to the data processing module.
6. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that each described Expanding element includes input photoelectric conversion module, data processing module and multiple output photoelectric modular converters;
The input photoelectric conversion module is used to be converted into the optical signal of input to be sent to the data processing after digital signal Module;And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module is sent after the digital signal that the input photoelectric conversion module is sent is carried out data processing To each output photoelectric modular converter;And the digital signal synthesis one for sending each output photoelectric modular converter Road optical signal is to be sent to the input photoelectric conversion module;
The digital signal that the data processing module is sent is converted into optical signal with defeated by each output photoelectric modular converter Go out;And the optical signal of input is converted into digital signal to be sent to the data processing module.
7. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that each described Expanding element includes input photoelectric conversion module, data processing module, output photoelectric modular converter and optical branching/combining mould Block;
The input photoelectric conversion module is used to be converted into the optical signal of input to be sent to the data processing after digital signal Module;And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module is sent to after the digital signal that the input photoelectric conversion module is sent is carried out data processing The output photoelectric modular converter;And it is sent to institute after the Digital Signal Processing sent according to the output photoelectric modular converter State input photoelectric conversion module;
The digital signal all the way that the data processing module is sent is converted into optical signal all the way by the output photoelectric modular converter To be sent to the optical branching/combining module;And the optical signal all the way of the optical branching/combining module input is converted into one Railway digital signal is to be sent to the data processing module;
The optical branching/combining module is identical for the optical signal all the way that the output photoelectric modular converter is sent to be divided into multichannel Optical signal to export;And by the synthesis of the multipath light signal of input all the way optical signal to be sent to the output photoelectric modulus of conversion Block;
The optical branching/combining module includes an input optical port, N number of output optical port, 1*N wavelength division multiplexers and 1*N optical branchings Device;Wherein, N is non-zero natural number;
The downlink optical signal all the way of the input optical port input is divided into the identical optical signal in N roads by the 1*N optical branching devices, respectively It is exported by N number of output optical port;
The 1*N wavelength division multiplexers will pass through after the N roads traveling optical signal synthesis of N number of output optical port input all the way optical signal The input optical port output.
8. as claim 3~7 any one of them realizes the optical fiber distribution system of the different location information source access of multichannel, feature exists In each expanding element further includes ethernet module, and the ethernet module is used for access network based on ethernet data, the data Processing module is additionally operable to handle the Ethernet data that the ethernet module is sent, and add corresponding communication standard mark After label the output photoelectric modular converter is sent to together with the digital signal that the input photoelectric conversion module is sent;
Each expanding element further includes monitoring module, for monitoring the work shape of other modules in the expanding element State, and monitored results are sent to monitoring center;
Each expanding element further includes power supply sub-module, and each far-end unit for being connected to the expanding element supplies Electricity.
9. the optical fiber distribution system of the different location information source access of multichannel is realized as described in claim 1, which is characterized in that each described Far-end unit is single system structure, and each far-end unit supports multiple communication standards of different operators respectively;Each institute It states far-end unit and includes photoelectric conversion module, data processing module and RF Amplifier Module;
The photoelectric conversion module is used to the optical signal of reception being converted into digital signal to be sent to the data processing module; And the digital signal for sending the data processing module is converted into optical signal to export;
The data processing module handles the digital signal that the photoelectric conversion module is sent, and far-end unit is not supported Communication standard data filtering, and the signal after filtering is sent to the RF Amplifier Module;And the radio frequency is put The digital signal that big module is sent is sent to the photoelectric conversion module after adding corresponding communication standard label;
The signal that data processing module is sent is converted into radiofrequency signal and amplifies to be transmitted to user by the RF Amplifier Module; And it is sent to the data processing module by digital signal is converted into after the radiofrequency signal amplification of the user received transmitting;Or
Each far-end unit is full system type pictorial structure, and each far-end unit includes photoelectric conversion module, data processing mould Block and multiple RF Amplifier Modules, each RF Amplifier Module only support multiple communication systems of same operator respectively Formula;
The data processing module handles the digital signal that the photoelectric conversion module is sent, and according in digital signal Communication standard label, by treated, digital signal is sent to supports the RF Amplifier Module of the communication standard;And by institute The photoelectric conversion module is sent to after stating the corresponding communication standard label of digital signal addition of RF Amplifier Module transmission;
The signal that data processing module is sent is converted into radiofrequency signal and amplifies to be transmitted to by each RF Amplifier Module User;And it is sent to the data processing mould by digital signal is converted into after the radiofrequency signal amplification of the user received transmitting Block.
10. a kind of communication means is adapted to carry out in the optical fiber distribution system of the different location information source access of multichannel, wherein, the optical fiber Compartment system includes a main access unit and connects the multiple from access unit, the connection master of the main access unit respectively At least one expanding element of access unit and at least one far-end unit being connect with the expanding element, wherein, it is described Main access unit and each multiple communication standards for supporting different operators respectively from access unit;It is characterized in that, The method includes:
Downlink step:It is each described after the radiofrequency signal received is added corresponding communication standard label by access unit The main access unit is sent to by optical fiber;The radiofrequency signal received is added corresponding communication system by the main access unit With receiving come since the optical signal of access unit sends jointly to corresponding each expanding element after formula label;It is each The expanding element is sent to corresponding each distal end after the optical signal received is carried out data processing by optical fiber Unit;The optical signal received is handled the radiofrequency signal to be converted into corresponding communication standard by each far-end unit To be transmitted to user;Wherein, the processing of the optical signal received is included being converted into counting by the optical signal received Word signal, and the signal that the communication standard is corresponded in the digital signal is converted into the radiofrequency signal;
Uplink step:The corresponding communication system of radiofrequency signal addition that each far-end unit emits the user received The corresponding expanding element is sent to by optical fiber after formula label;The expanding element will be sent out after the optical signal prosessing received Give the main access unit;After the main access unit receives optical signal, data forwarding is realized by following two modes:
Be transmitted to the slave access unit for supporting the communication standard by communication standard label in optical signal orientation, it is each it is described from The signal received is converted into the radiofrequency signal of corresponding communication standard to be sent to corresponding information source by access unit;Or
The optical signal received is sent to broadcast mode it is each described from access unit, it is each it is described will not from access unit The data filtering of the communication standard of support, and the signal after filtering is converted into the radiofrequency signal of corresponding communication standard to send To corresponding information source.
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