CN103165967B - A kind of coupler and the common transport system based on repeater room subsystem - Google Patents
A kind of coupler and the common transport system based on repeater room subsystem Download PDFInfo
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Abstract
The invention provides a kind of coupler and the common transport system based on repeater room subsystem, this coupler comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; Does is the degree of coupling of described coupler n? dB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to n? dB, wherein n & gt; 0.Can realize providing and the several data transport service of depositing to user with existing repeater coaxial network by described coupler.The described common transport system based on repeater room subsystem is the system achieving several data and deposit transmission.
Description
Technical field
The invention belongs to communication technical field, relate to a kind of coupler and the common transport system based on repeater room subsystem.
Background technology
Indoor distributed system is for indoor user group, mainly solves a kind of scheme of the network coverage of mobile communications network in building, network capacity, network quality.In-door covering is the mobile operator major networks optimal way that weak and signal blind zone covers to indoor signal.Utilize domestic aerial compartment system that the signal of mobile communication base station is evenly distributed on indoor every nook and cranny, thus ensure that room area has desirable quorum sensing inhibitor.
Indoor distributed system is primarily of signal source, signal distributing system two parts composition.Signal source mainly comprises indoor macro cellular basestation, indoor microcell base station, remote radio and repeater etc.Signal distributing system comprises transmission medium and covers unit.Transmission medium has light, coaxial cable, leaky cable etc.; Capping unit has trunk amplifier, power splitter, coupler, mixer, domestic aerial etc.Repeater mode signal source extracting mode mainly contains several as follows:
1) directly signal is extracted from neighbouring base station by the donor antenna of repeater.
2) coupler is utilized to be sent to the repeater of the wish area of coverage by light from neighbouring base stations couple part signal.
3) coupler is utilized to be sent to the repeater of the wish area of coverage by cable from neighbouring base stations couple part signal.
Repeater (repeater) belongs to frequency multiplying arrangement, refers to a kind of radio transmission transferring equipment playing signal enhancing in wireless communication transmissions process.The basic function of repeater is exactly a radio-frequency signal power enhancer.Repeater in the downlink, by pickoff signals in the existing overlay area of donor antenna, is carried out fabulous isolation by band pass filter to the logical outer signal of band, the signal of filtering is again transmitted into region to be covered after power amplifier amplifies.In the uplink, the cell phone signal in overlay area is transmitted into corresponding base station with same working method by after up amplification link processing, thus reaches the signal transmission of base station and mobile phone.
Traditional room subsystem as shown in Figure 1, comprises repeater, splitter, coaxial line, power splitter and antenna.Wherein, repeater is connected with antenna with power splitter by splitter, is connected between repeater, splitter and power splitter by coaxial line.The signal that repeater is launched is by being transferred to antenna after splitter, power splitter.Because the splitter in traditional room subsystem is high pass splitter, thus this room subsystem can only transmission frequency at the mobile communication signal of 800-2500MHz, and the signal of low-frequency range cannot be transmitted, such as lower than the data-signal of 800MHz.The limitation of existing room subsystem in operating frequency, causes hardware resource and waste spatially undoubtedly for user.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of coupler and the common transport system based on repeater room subsystem, this system achieves the transmission utilizing the coaxial network of existing transport communication repeater signal simultaneously to carry out several data.
For achieving the above object and other relevant objects, the invention provides a kind of coupler and the common transport system based on repeater room subsystem.
A kind of coupler, comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n > 0.
As a preferred embodiment of the present invention, described coupler comprises splitter, the first splitter and first duplexer; Described splitter comprises all-pass input, all-pass output, low pass output; Described first splitter comprises primary input end, main output and branch's output; The primary input end of described first splitter is connected with the all-pass output of described splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the low pass output of described splitter; The all-pass input of described splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
As another kind of preferred version of the present invention, described coupler comprises the second splitter, the first low pass filter, the first splitter and first duplexer; Described second splitter comprises primary input end, main output, branch's output; Described first low pass filter comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described first splitter comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the output of described first low pass filter; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
As another preferred version of the present invention, described coupler comprises the second splitter, the first low pass filter, the second low pass filter, mixer, the first splitter and first duplexer; Described second splitter comprises primary input end, main output, branch's output; Described first low pass filter comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described second low pass filter comprises input and output; The input of the second low pass filter is connected with the primary input end of the second splitter; Described mixer comprises first input end, the second input, closes road output; The first input end of mixer is connected with the output of the first low pass filter; Second input of mixer is connected with the output of the second low pass filter; Described first splitter comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the conjunction road output of described mixer; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
Based on a common transport system for repeater room subsystem, comprise repeater head end, data head end, the second duplexer, coupler, the 3rd duplexer; Repeater head end is in order to transfer wireless communication signals; Data head end is in order to transfer low-frequency data signal; Second duplexer is connected with data head end with repeater head end respectively, in order to wireless communication signals and low-frequency data signal to be coupled into conjunction road, a road signal; Coupler comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n > 0, described preliminary election frequency range is the frequency range being more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and the main output of coupler and branch's output all close road signal in order to export; 3rd duplexer is in order to be divided into high communication number and low-pass signal output by conjunction road signal; The high communication number output of described 3rd duplexer connects an antenna, and low-pass signal output connects a data terminal or resistance.
As a preferred embodiment of the present invention, described 3rd duplexer is connected with described coupler by a power splitter, the input of described power splitter is connected with branch's output of coupler, 2 outputs of described power splitter connect one the 3rd duplexer respectively, the high communication number output of each 3rd duplexer all connects an antenna, and the low-pass signal output of each 3rd duplexer all connects a data terminal or resistance.
As another kind of preferred version of the present invention, described common transport system comprises at least 2 couplers; The main output of each coupler or branch's output all connect the primary input end of another coupler.
As another preferred version of the present invention, described coupler comprises splitter, the first splitter and first duplexer; Described splitter comprises all-pass input, all-pass output, low pass output; Described first splitter comprises primary input end, main output and branch's output; The primary input end of described first splitter is connected with the all-pass output of described splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the low pass output of described splitter; The all-pass input of described splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
As another preferred version of the present invention, described coupler comprises the second splitter, the first low pass filter, the first splitter and first duplexer; Described second splitter comprises primary input end, main output, branch's output; Described first low pass filter comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described first splitter comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the output of described first low pass filter; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
As another preferred version of the present invention, described coupler comprises the second splitter, the first low pass filter, the second low pass filter, mixer, the first splitter and first duplexer; Described second splitter comprises primary input end, main output, branch's output; Described first low pass filter comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described second low pass filter comprises input and output; The input of the second low pass filter is connected with the primary input end of the second splitter; Described mixer comprises first input end, the second input, closes road output; The first input end of mixer is connected with the output of the first low pass filter; Second input of mixer is connected with the output of the second low pass filter; Described first splitter comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the conjunction road output of described mixer; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
As mentioned above, coupler of the present invention and the common transport system based on repeater room subsystem, have following beneficial effect:
By coupler provided by the invention, can realize utilizing existing repeater coaxial network to provide various data service to the user in building, can be broadband access transmission data, as EoC; Also can be the transmission data of supervisory control system; Also can be and the multiple transmission data of depositing.
Common transport system based on repeater room subsystem of the present invention is that all or part of high pass splitter utilizing coupler of the present invention to replace in the coaxial network of existing repeater is formed, it adopts the low-frequency range lower than 800MHz to carry out transfer of data, achieve several data and deposit transmission.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional room subsystem.
Fig. 2 is the structural representation of the coupler described in embodiment one.
Fig. 3 is the structural representation of the coupler described in embodiment two.
Fig. 4 is the structural representation of the coupler described in embodiment three.
Fig. 5 is a kind of distributed architecture schematic diagram of the common transport system based on repeater room subsystem of the present invention.
Element numbers explanation
10, splitter; 11, the first splitter;
12, first duplexer; 13, the second splitter;
14, the first low pass filter; 15, the second low pass filter;
16, mixer.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Communication repeater station is extensive use radio communication and plays a kind of transferring equipment of signal enhancing.Repeater room subsystem system is by repeater, and coax network and antenna composition, multiple antenna is connected with communication repeater station by coaxial cable.The invention provides a kind of coupler, repeater can be realized by this coupler and transfer of data is deposited with cable public affairs.
The invention provides a kind of coupler, this coupler comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n > 0.Described preliminary election frequency range is a part of frequency range intercepted within the scope of full frequency band, and choosing of this preliminary election frequency range can be arranged according to actual needs.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of coupler, and as shown in Figure 2, described coupler comprises splitter 10, first splitter 11 and first duplexer 12; Described splitter 10 comprises all-pass input, all-pass output, low pass output; Described first splitter 11 comprises primary input end, main output and branch's output; The primary input end of described first splitter is connected with the all-pass output of described splitter; First duplexer 12 comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the low pass output of described splitter; The all-pass input of described splitter 10 is the primary input end (i.e. the 1st input) of described coupler, the main output of described first splitter is the main output (i.e. the 2nd output) of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler (i.e. the 3rd output).
The primary input end of the coupler described in the present embodiment, main output, branch's output allow the signal frequency range passed through to be identical; If the degree of coupling of described coupler is ndB, so can input preliminary election one section of frequency band signals in the full frequency band signal of described coupler in permission, the frequency band signals major part of this preliminary election exports from the main output of described coupler, sub-fraction is only had to export from branch's output of coupler, alternatively this preliminary election frequency band signals coupler branch's output decay to ndB, wherein n > 0.
Embodiment two
The present embodiment provides a kind of coupler, and as shown in Figure 3, described coupler comprises the second splitter 13, first low pass filter 14, first splitter 11 and first duplexer 12; Described second splitter 13 comprises primary input end, main output, branch's output; Described first low pass filter 14 comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described first splitter 11 comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer 12 comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the output of described first low pass filter; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
In the present embodiment, because branch's output of the second splitter is connected with the first low pass filter, branch's output of described second splitter can only export low-pass signal, and high communication number is all exported by the main output of the second splitter.
Embodiment three
The present embodiment provides a kind of coupler, and as shown in Figure 4, described coupler comprises the second splitter 13, first low pass filter 14, second low pass filter 15, mixer 16, first splitter 11 and first duplexer 12; Described second splitter 13 comprises primary input end, main output, branch's output; Described first low pass filter 14 comprises input and output; The input of the first low pass filter is connected with branch's output of the second splitter; Described second low pass filter 15 comprises input and output; The input of the second low pass filter is connected with the primary input end of the second splitter; Described mixer 16 comprises first input end, the second input, closes road output; The first input end of mixer is connected with the output of the first low pass filter; Second input of mixer is connected with the output of the second low pass filter; Described first splitter 11 comprises primary input end, main output and branch's output; The primary input end of the first splitter is connected with the main output of described second splitter; First duplexer 12 comprises high pass input, low pass input, closes road output; The high pass input of first duplexer is connected with branch's output of the first splitter; The low pass input of first duplexer is connected with the conjunction road output of described mixer; The primary input end of described second splitter is the primary input end of described coupler, and the main output of described first splitter is the main output of described coupler, and the conjunction road output of described first duplexer is branch's output of described coupler.
In the present embodiment, because branch's output of the second splitter is connected with the first low pass filter, branch's output of described second splitter can only export low-pass signal, and high communication number is all exported by the main output of the second splitter.Because the input of the second splitter is connected with the input of the second low pass filter, the part low-pass signal (or direct current signal) of input second splitter can intercept and come, by the branch output of the second low pass filter to coupler by the second low pass filter.In coupler described in the present embodiment, the trend of each frequency band signals can be arranged according to the filtering frequency range of the first low pass filter and the second low pass filter completely.
Embodiment four
The present embodiment provides a kind of common transport system based on repeater room subsystem, as shown in Figure 5, should comprise based on the common transport system of repeater room subsystem:
Repeater head end, in order to transfer wireless communication signals;
Data head end, in order to transfer low-frequency data signal;
Second duplexer, is connected with data head end with repeater head end respectively, in order to wireless communication signals and low-frequency data signal to be coupled into conjunction road, a road signal;
Coupler, comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n > 0, described preliminary election frequency range is the frequency range being more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and the main output of coupler and branch's output all close road signal in order to export;
3rd duplexer is in order to be divided into high communication number and low-pass signal output by conjunction road signal; The high communication number output of described 3rd duplexer connects an antenna, and low-pass signal output connects a data terminal or resistance;
Power splitter, in order to be divided into the 2 tunnels output signal identical with input signal by input signal;
Described 3rd duplexer can directly be connected with coupler, also can be connected with described coupler by a power splitter.If described 3rd duplexer is connected with coupler by power splitter, the input of so described power splitter is connected with branch's output of coupler, 2 outputs of described power splitter connect one the 3rd duplexer respectively, the high communication number output of each 3rd duplexer all connects an antenna, and the low-pass signal output of each 3rd duplexer all connects a data terminal or resistance.
The described common transport system based on repeater room subsystem can comprise at least 2 couplers; The main output of each coupler or branch's output all connect the primary input end of another coupler.This common transport system can also comprise power splitter, also can be connected by power splitter between 2 couplers or between coupler with the second duplexer, makes the area coverage of described common transport system wider.The use of power splitter can make whole common transport system according to the flexible shunt of the actual conditions of user distribution.Should be connected by coaxial cable based on each device in the common transport system of repeater room subsystem.
The annexation of described each device comprised based on the common transport system of repeater room subsystem can carry out flexible topology's use completely according to actual needs, as long as the described common transport system based on repeater room subsystem can be realized both can connect antenna (namely realizing mobile communication), can also the requirement of connection data terminal (namely realizing low-frequency data communication), the coupler in this system, the 3rd duplexer, power splitter can connection configuration in any way.
Being applied in the signal frequency range can transmitted based on the coupler in the common transport system of repeater room subsystem is 0-2.5GHz, wherein mobile communication (or being called HF communication) adopts the frequency range of more than 800MHz, and low-frequency data communication adopts the frequency range of below 800MHz.That is, the working frequency range of the coupler described in the present embodiment is 0-2.5GHz, and this function is that existing coupler cannot realize.Exactly because also coupler of the present invention, make in the subsystem of existing room, realize the transmission of more than 800MHz frequency band signals and the transmission of below 800MHz frequency band signals simultaneously, take full advantage of the hardware resource of existing room subsystem.
By the common transport system based on repeater room subsystem provided by the invention, can realize utilizing repeater coaxial network to provide various data service to the user in building, as broadband access, video monitoring etc.EoC (EthernetOverCoax) is also the system of wherein a kind of coaxial line transmission bi-directional data.The present invention also can utilize excess fiber between repeater and base station as the data communication channel between building and base station, as EPON/GPON etc.
Common transport system based on repeater room subsystem of the present invention can be broadband access transmission, as EoC; Also can be the transfer of data of supervisory control system; Also can be several data transmission system and deposit.Should adopt based on the common transport system of repeater room subsystem and carry out transfer of data (television signal transmission) lower than the low-frequency range of 800MHz.This system can adopt the all-pass coupler of embodiment one to three described in any one to substitute high pass splitter (coupler) all or part of in the network of existing communication repeater.
So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (7)
1. a coupler, is characterized in that: described coupler comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n>0; The frequency band signals major part of described preliminary election exports from the main output of described coupler; Described coupler utilizes the primary input end of all-pass input as described coupler of a splitter, utilize the main output of main output as described coupler of the first splitter, utilize the branch output of conjunction road output as described coupler of first duplexer; Wherein, the all-pass output of described splitter is directly or indirectly connected with the primary input end of described first splitter; The low pass output of described splitter is directly or indirectly connected with the low pass input of described first duplexer; Branch's output of described first splitter is directly or indirectly connected with the high pass input of described first duplexer.
2. a coupler, is characterized in that: described coupler comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n>0; The frequency band signals major part of described preliminary election exports from the main output of described coupler; Described coupler utilizes the primary input end of primary input end as described coupler of the second splitter, utilize the main output of main output as described coupler of the first splitter, utilize the branch output of conjunction road output as described coupler of first duplexer; Wherein, the main output of described second splitter is directly or indirectly connected with the primary input end of described first splitter; Branch's output of described second splitter is directly or indirectly connected with the low pass input of described first duplexer; Branch's output of described first splitter is directly or indirectly connected with the high pass input of described first duplexer; Described coupler also comprises the first low pass filter; Described first low pass filter comprises input and output; The input of described first low pass filter is connected with branch's output of described second splitter; The output of described first low pass filter is connected with the low pass input of described first duplexer.
3. coupler according to claim 2, is characterized in that: described coupler also comprises the second low pass filter, mixer;
Described second low pass filter comprises input and output; The input of the second low pass filter is connected with the primary input end of the second splitter;
Described mixer comprises first input end, the second input, closes road output; The first input end of mixer is connected with the output of the first low pass filter; Second input of mixer is connected with the output of the second low pass filter; The conjunction road output of described mixer and the low pass input of described first duplexer be connected.
4. based on a common transport system for repeater room subsystem, it is characterized in that, the described common transport system based on repeater room subsystem comprises:
Repeater head end, in order to transfer wireless communication signals;
Data head end, in order to transfer low-frequency data signal;
Second duplexer, is connected with data head end with repeater head end respectively, in order to wireless communication signals and low-frequency data signal to be coupled into conjunction road, a road signal;
Coupler, comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n>0, described preliminary election frequency range is the frequency range being more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and the main output of coupler and branch's output all close road signal in order to export; The frequency band signals major part of described preliminary election exports from the main output of described coupler; Described coupler utilizes the primary input end of all-pass input as described coupler of a splitter, utilize the main output of main output as described coupler of the first splitter, utilize the branch output of conjunction road output as described coupler of first duplexer; Wherein, the all-pass output of described splitter is directly or indirectly connected with the primary input end of described first splitter; The low pass output of described splitter is directly or indirectly connected with the low pass input of described first duplexer; Branch's output of described first splitter is directly or indirectly connected with the high pass input of described first duplexer;
3rd duplexer, in order to be divided into high communication number and low-pass signal output by conjunction road signal; The high communication number output of described 3rd duplexer connects an antenna, and low-pass signal output connects a data terminal or resistance; Described 3rd duplexer is connected with described coupler by a power splitter, the input of described power splitter is connected with branch's output of coupler, 2 outputs of described power splitter connect one the 3rd duplexer respectively, the high communication number output of each 3rd duplexer all connects an antenna, and the low-pass signal output of each 3rd duplexer all connects a data terminal or resistance.
5. the common transport system based on repeater room subsystem according to claim 4, is characterized in that: described common transport system comprises at least 2 couplers; The main output of each coupler or branch's output all connect the primary input end of another coupler.
6. based on a common transport system for repeater room subsystem, it is characterized in that, the described common transport system based on repeater room subsystem comprises:
Repeater head end, in order to transfer wireless communication signals;
Data head end, in order to transfer low-frequency data signal;
Second duplexer, is connected with data head end with repeater head end respectively, in order to wireless communication signals and low-frequency data signal to be coupled into conjunction road, a road signal;
Coupler, comprises primary input end, main output, branch's output; Described primary input end, main output, branch's output allow the signal frequency range passed through identical; The degree of coupling of described coupler is ndB, allow input described coupler full frequency band signal in preliminary election frequency range signal described coupler branch's output decay to ndB, wherein n>0, described preliminary election frequency range is the frequency range being more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and the main output of coupler and branch's output all close road signal in order to export; The frequency band signals major part of described preliminary election exports from the main output of described coupler; Described coupler utilizes the primary input end of primary input end as described coupler of the second splitter, utilize the main output of main output as described coupler of the first splitter, utilize the branch output of conjunction road output as described coupler of first duplexer; Wherein, the main output of described second splitter is directly or indirectly connected with the primary input end of described first splitter; Branch's output of described second splitter is directly or indirectly connected with the low pass input of described first duplexer; Branch's output of described first splitter is directly or indirectly connected with the high pass input of described first duplexer; Described coupler also comprises the first low pass filter; Described first low pass filter comprises input and output; The input of described first low pass filter is connected with branch's output of described second splitter; The output of described first low pass filter is connected with the low pass input of described first duplexer;
3rd duplexer, in order to be divided into high communication number and low-pass signal output by conjunction road signal; The high communication number output of described 3rd duplexer connects an antenna, and low-pass signal output connects a data terminal or resistance; Described 3rd duplexer is connected with described coupler by a power splitter, the input of described power splitter is connected with branch's output of coupler, 2 outputs of described power splitter connect one the 3rd duplexer respectively, the high communication number output of each 3rd duplexer all connects an antenna, and the low-pass signal output of each 3rd duplexer all connects a data terminal or resistance.
7. the common transport system based on repeater room subsystem according to claim 6 any one, is characterized in that: described coupler also comprises the second low pass filter, mixer;
Described second low pass filter comprises input and output; The input of the second low pass filter is connected with the primary input end of the second splitter;
Described mixer comprises first input end, the second input, closes road output; The first input end of mixer is connected with the output of the first low pass filter; Second input of mixer is connected with the output of the second low pass filter; The conjunction road output of described mixer and the low pass input of described first duplexer be connected.
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| CN110828958A (en) * | 2019-11-15 | 2020-02-21 | 广东博纬通信科技有限公司 | Power divider with frequency selection characteristic |
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| CN2819658Y (en) * | 2005-06-09 | 2006-09-20 | 沈阳奥维通信技术有限公司 | Mobile telecommunication frequency-shift direct broadcast station |
| CN2877054Y (en) * | 2005-12-16 | 2007-03-07 | 安徽海特微波通信有限公司 | Step cavity directional coupler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2819658Y (en) * | 2005-06-09 | 2006-09-20 | 沈阳奥维通信技术有限公司 | Mobile telecommunication frequency-shift direct broadcast station |
| CN2877054Y (en) * | 2005-12-16 | 2007-03-07 | 安徽海特微波通信有限公司 | Step cavity directional coupler |
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