Invention content
The purpose of this utility model is to provide a kind of multimode fibres based on catv network to zoom out covering system of registering one's residence, withOvercome defect existing in the prior art.
To achieve the above object, the technical solution of the utility model is：A kind of multimode fibre based on catv network zooms outIt registers one's residence covering system, including：One proximal end unit, an expanding element and a plurality of far-end units；One end of the proximal end unitIt is coupled with the base stations 2G, NodeB, the base stations 4G or base station zoom out system, the other end is connected to through optical fiber interface by optical fiber describedThe optical fiber interface of expanding element one end；Described expanding element one end further includes one being connected with catv network by CATV coaxial cablesThe first CATV coaxial cable interfaces connect；The expanding element other end includes by CATV coaxial cables and corresponding distal end listThe 2nd connected CATV coaxial cable interfaces of member；One end of the far-end unit connects including one with the 2nd CATV coaxial cables3rd CATV coaxial cable interfaces of mouth connection, the other end include being connected with original TV set-top box by CATV coaxial cablesThe 4th CATV coaxial cable interfaces and one for by 2G movable signals, 3G movable signals, 4G movable signals to the area of coverage intoThe retransmitting antenna of row covering.
In one embodiment of the utility model, the proximal end unit includes and the matched 2G duplexers in the base stations 2G and 3G basesStand matched 3G duplexers, with the matched 4G duplexers in the base stations 4G, the first laser device being connected with 2G duplexers, with 3G duplexersConnected second laser, the third laser being connected with 4G duplexers and respectively with the first laser device, second laserThe first intensive light wavelength division multiplexing that device is connected with third laser；The first intensive light wavelength division multiplexing also with the proximal endThe optical fiber interface of the unit other end is connected.
In one embodiment of the utility model, the expanding element include be connected with one end optical fiber interface it is second intensiveLight wavelength division multiplexing, the 4th laser, the 5th laser, the 6th laser and CATV are mixed to divide device；4th laser,Five lasers, the 6th laser are connected with the described second intensive light wavelength division multiplexing respectively；The CATV is mixed divide device respectively with instituteIt is same to state the first CATV coaxial cable interfaces, the 4th laser, the 5th laser, the 6th laser and the 2nd CATVShaft cable interface is connected.
In one embodiment of the utility model, the far-end unit includes CATV combiners, the first power amplifier low noise integrationUnit, the second power amplifier low noise integrated unit, third power amplifier low noise integrated unit and multiplexer；The CATV combiners pointIt is not integrated with the 3rd CATV coaxial cable interfaces, the 4th CATV coaxial cable interfaces, the first power amplifier low noiseUnit, the second power amplifier low noise integrated unit, third power amplifier low noise integrated unit are connected；The first power amplifier low noise integrationUnit, the second power amplifier low noise integrated unit, third power amplifier low noise integrated unit are also connected with the multiplexer respectively；It is describedMultiplexer is also connected with the retransmitting antenna.
Compared to the prior art, the utility model has the advantages that：The utility model proposes one kind to be based onThe multimode fibre of catv network zooms out covering system of registering one's residence, including proximal end unit, expanding element and far-end unit.By 2G, 3G, 4GMovable signal solves the problems, such as 2G, 3G, 4G movable signal and CATV signals not in same website by zooming out, then by 2G,3G, 4G movable signal and CATV signals combining after and decile outputting multiplex signals, and using original CATV coaxial cables progressSignal transmission is not influencing original catv network signal, while realizing the covering of registering one's residence of 2G, 3G, 4G movable signal.Overcome biographyThe system indoor distributed system construction time is long, the construction difficult problems such as property difficult coordination；Building time is short, at low cost, 2G, 3G, 4GMovable signal is got in by original CATV coaxial cables and is covered, and to solve, indoor 2G, 3G, 4G signal is weak to be coveredLid, pilot pollution and ping-pong, improve the perception of user.
Specific implementation mode
Below in conjunction with the accompanying drawings and existing software, the technical solution of the utility model is specifically described.In the explanationInvolved existing software is not the object that the utility model is protected in the process, and the utility model only protects the knot of the deviceStructure and connection relation.
In the present embodiment, as shown in Figure 1, a kind of multimode fibre based on catv network provided by the utility model zooms outCovering system of registering one's residence include a base station, a proximal end unit, an expanding element and a plurality of far-end units, one end of proximal end unit withOne base station 2G, 3G, 4G or base station zoom out system are coupled, and the optical fiber interface of the other end of proximal end unit is single with extension by optical fiberThe optical fiber interface connection of member.One end of expanding element is equipped with an optical fiber interface and a CATV coaxial cable interfaces, and optical fiber interface is logicalIt crosses optical fiber with proximal end unit to be connected, CATV coaxial cable interfaces are connected by coaxial cable with catv network.Expanding elementThe other end be equipped with a plurality of CATV coaxial cable interfaces, and pass through the CATV coaxial electricals of coaxial cable and a plurality of far-end unitsCable interface connects.Far-end unit is equipped with two CATV coaxial cable interfaces, and one of CATV coaxial cable interfaces pass through coaxialCable interface is connected with expanding element, another CATV coaxial cable interface passes through coaxial cable and original TV set-top boxIt is connected.The far-end unit other end is equipped with a retransmitting antenna, will zoom out amplified 2G, 3G, 4G movable signal to coveringArea is covered；
In the present embodiment, as shown in Fig. 2, proximal end unit is used in the downlink by the base station 2G, 3G, 4G or base stationFar-drawing system coupling 2G, 3G, 4G downlink signal, through 2G duplexers, 3G duplexers and 4G duplexers respectively enter laser 1,Laser 2, laser 3 are converted to 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ, 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ pointNot Jin Ru intensive light wavelength division multiplexing 1, intensive light wavelength division multiplexing 1 by 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ combining at oneKind is containing there are three types of different wave lengths（λ1、λ2、λ3）Optical signal after expanding element is transmitted to by optical fiber.The uplink of proximal end unitLu Zhongcong optical fiber receives the optical signal that expanding element transmits, and contains three through receiving the one kind transmitted from expanding element by optical fiberKind different wave length（λ4、λ5、λ6）Optical signal enter intensive light wavelength division multiplexing 1, intensive light wavelength division multiplexing 1 will contain differenceThe optical signal of wavelength resolves into 4 optical signals of λ, 5 optical signals of λ, 6 optical signals of λ and respectively enters laser 1, laser 2, laser 3,4 optical signals of λ, 5 optical signals of λ, 6 optical signals of λ are converted to 2G, 3G, 4G upstream radio-frequency by laser 1, laser 2, laser 3 respectivelySignal is sent to the base station 2G, 3G, 4G or base station zoom out system through 2G duplexers, 3G duplexers and 4G duplexers.
In the present embodiment, as shown in figure 3, expanding element was transmitted by optical fiber reception proximal end unit in the downlinkThe one kind come is containing there are three types of different wave lengths（λ1、λ2、λ3）Optical signal enter intensive light wavelength division multiplexing 2, intensive light wave point is multipleIt will contain different wave length with device 2（λ1、λ2、λ3）Optical signal resolve into 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ respectively intoEnter laser 4, laser 5, laser 6, laser 4, laser 5, laser 6 are respectively by 1 optical signals of λ, 2 optical signals of λ, 3 light of λSignal is converted to 2G, 3G, 4G downlink radio-frequency signal, 2G, 3G, 4G downlink radio-frequency signal and CATV signals and divides device to be combined through CATV is mixedAfterwards and decile exports, and several far-end units are transmitted to using original CATV coaxial cables.Expanding element in the uplink fromCATV coaxial cables receive the CATV signals transmitted from far-end unit, 2G, 3G, 4G uplink signal enter that CATV is mixed to divide device,CATV is mixed to divide device to detach CATV signals, 2G, 3G, 4G uplink signal, the catv network unit that CATV signals send back to；2G, 3G, 4G uplink signal enter laser 4, laser 5, laser 6 be converted to 4 optical signals of λ, 5 optical signals of λ, 6 optical signals of λ intoEnter intensive light wavelength division multiplexing 2；There are three types of intensive light wavelength division multiplexing 2 contains the optical signal combining of three kinds of different wave lengths at one kindDifferent wave length（λ4、λ5、λ6）Optical signal after proximal end unit is transmitted to by optical fiber.The CATV of expanding element is mixed to divide device that can incite somebody to actionCATV signals and the combining of 2G, 3G, 4G downlink signal and decile multiple-channel output, also can be by multichannel CATV signals and 2G, 3G, 4G uplinkSignal is detached.
In the present embodiment, as shown in figure 4, far-end unit will be received in the downlink by CATV coaxial cables fromCATV signals that expanding element transmits, 2G, 3G, 4G downlink signal enter CATV combiners, CATV combiners by CATV signals,2G, 3G, 4G downlink signal are detached, and CATV signals connect original TV set-top box；2G, 3G, 4G downlink signal respectively enterPower amplifier low noise integration 1, power amplifier low noise integration 2, power amplifier low noise integration 3 enter multiplexer, multiplexer after power amplificationInterior is covered by retransmitting antenna after 2G, 3G, 4G downlink signal are combined.The uplink of far-end unit passes through repeating transmissionAntenna receives 2G, 3G, 4G uplink signal and enters multiplexer, and 2G, 3G, 4G uplink signal respectively enter power amplifier after multiplexer detachesLow noise integration 1, power amplifier low noise integration 2, power amplifier low noise integration 3, respectively enter after uplink low noise amplification respectivelyCATV combiners are combined, and expanding element is transmitted to by CATV coaxial cables.CATV combiners can by CATV signals and2G, 3G, 4G downlink signal detach, and can also be combined CATV signals and 2G, 3G, 4G uplink signal.
With reference to the hardware configuration and attached drawing of the utility model, the specific implementation to the utility model total systemMode illustrates.
As shown in figure 5, downlink is：Proximal end unit is used to draw the base station 2G, 3G, 4G or base station in the downlink2G, 3G, 4G downlink signal of remote system coupling respectively enter laser 1 through 2G duplexers, 3G duplexers and 4G duplexers, swashLight device 2, laser 3 are converted to 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ, 1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ differenceInto intensive light wavelength division multiplexing 1, intensive light wavelength division multiplexing 1 is by 1 optical signals of λ, 2 optical signals of λ, the combining of 3 optical signals of λ at one kindContaining there are three types of different wave lengths（λ1、λ2、λ3）Optical signal after expanding element is transmitted to by optical fiber；Expanding element is in downlink chainThe one kind sent by optical fiber reception proximal end unit in road is containing there are three types of different wave lengths（λ1、λ2、λ3）Optical signal enterIntensive light wavelength division multiplexing 2, intensive light wavelength division multiplexing 2 will contain different wave length（λ1、λ2、λ3）Optical signal resolve into λ 1Optical signal, 2 optical signals of λ, 3 optical signals of λ respectively enter laser 4, laser 5, laser 6, laser 4, laser 5, laser1 optical signals of λ, 2 optical signals of λ, 3 optical signals of λ are converted to 2G, 3G, 4G downlink radio-frequency signal by device 6 respectively, and 2G, 3G, 4G downlink are penetratedThe simultaneously decile output after CATV is mixed and device is divided to be combined of frequency signal and CATV signals, is transmitted to several using original CATV coaxial cablesFar-end unit；Far-end unit will receive the CATV transmitted from expanding element by CATV coaxial cables in the downlink to be believedNumber, 2G, 3G, 4G downlink signal enter CATV combiners, CATV combiners are divided CATV signals, 2G, 3G, 4G downlink signalFrom CATV signals connect original TV set-top box；It is low that 2G, 3G, 4G downlink signal respectively enter power amplifier low noise integration 1, power amplifierMake an uproar integration 2, power amplifier low noise integration 3, after power amplification enter multiplexer, multiplexer by 2G, 3G, 4G downlink signal be combinedInterior is covered by retransmitting antenna afterwards.
Uplink is：The uplink of far-end unit receives 2G, 3G, 4G uplink signal by retransmitting antenna and enters multiplexingDevice, 2G, 3G, 4G uplink signal respectively enter power amplifier low noise integration 1, power amplifier low noise integration 2, power amplifier after multiplexer detachesLow noise integration 3 respectively enters CATV combiners after uplink low noise amplification and is combined, passes through CATV coaxial cables respectivelyIt is transmitted to expanding element；Expanding element receives the CATV letters transmitted from far-end unit from CATV coaxial cables in the uplinkNumber, 2G, 3G, 4G uplink signal enter that CATV is mixed to divide device, CATV is mixed to divide device to be divided CATV signals, 2G, 3G, 4G uplink signalFrom the catv network unit that CATV signals send back to；2G, 3G, 4G uplink signal enter laser 4, laser 5,6 turns of laserIt is changed to 4 optical signals of λ, 5 optical signals of λ, 6 optical signals of λ and enters intensive light wavelength division multiplexing 2；Intensive light wavelength division multiplexing 2 by three kinds notThe optical signal combining of co-wavelength is at one kind containing there are three types of different wave lengths（λ4、λ5、λ6）Optical signal after be transmitted to closely by optical fiberEnd unit；Receive the optical signal that expanding element transmits from optical fiber in the uplink of proximal end unit, through by optical fiber receive fromOne kind that expanding element transmits is containing there are three types of different wave lengths（λ4、λ5、λ6）Optical signal enter intensive light wavelength division multiplexing 1, it is closeOptical signal containing different wave length is resolved into 4 optical signals of λ, 5 optical signals of λ, 6 optical signals of λ and respectively enterd by collection light wavelength division multiplexing 1Laser 1, laser 2, laser 3, laser 1, laser 2, laser 3 respectively believe 4 optical signals of λ, 5 optical signals of λ, 6 light of λNumber 2G, 3G, 4G upstream radio-frequency signal are converted to, the base station 2G, 3G, 4G is sent to through 2G duplexers, 3G duplexers and 4G duplexersOr base station zoom out system.
It is the preferred embodiment of the utility model above, it is all to change according to made by technical solutions of the utility model, it is producedFunction without departing from technical solutions of the utility model range when, belong to the scope of protection of the utility model.