CN103165967A - Coupler and public transmission system based on repeater room subsystem - Google Patents
Coupler and public transmission system based on repeater room subsystem Download PDFInfo
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Abstract
The invention provides a coupler and a public transmission system based on a repeater room subsystem. The coupler comprises a major input end, a major output end and a branch output end. The signal frequency range which is permitted to pass of the major input end, the signal frequency range which is permitted to pass of the major output end and the signal frequency range which is permitted to pass of the branch output end are the same. The coupling degree of the coupler is ndB, and the signals of a preselection frequency range in full-band signals which are permitted to be input into the coupler are attenuated to ndB, and the signals of the preselection frequency range are arranged at the branch output end of the coupler, wherein the n is greater than zero. Due to the coupler, a plurality of coexisting data transmission services which are supplied for users through a repeater coaxial network can be achieved. The public transmission system based on the repeater room subsystem achieves coexisting transmission of a plurality of data.
Description
Technical field
The invention belongs to communication technical field, relate to a kind of coupler and based on the common transport system of chamber, repeater subsystem.
Background technology
Indoor distributed system is for the indoor user group, mainly solves the network coverage, the network capacity of mobile communications network in building, a kind of scheme of network quality.Indoor covering be mobile operator to indoor signal a little less than and the main network optimization mode that covers of signal blind zone.Utilize the domestic aerial compartment system that the signal of mobile communication base station is evenly distributed on indoor every nook and cranny, thereby guarantee that room area has desirable signal and covers.
Indoor distributed system mainly is comprised of signal source, signal distributing system two parts.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 following several:
1) donor antenna by the repeater directly extracts signal near base station.
2) utilize coupler to be sent to the repeater of wanting the area of coverage by light near base station coupling unit signal.
3) utilize coupler to be sent to the repeater of wanting the area of coverage by cable near base station coupling unit signal.
Repeater (repeater) belongs to the frequency multiplying arrangement, refers to play in the wireless communication transmissions process a kind of radio transmission transferring equipment that signal strengthens.The basic function of repeater is exactly a radio-frequency signal power enhancer.The repeater by pickoff signals in donor antenna existing overlay area,, again is transmitted into the signal of filtering after power amplifier amplifies and treats the overlay area carrying out fabulous isolation with logical outer signal by band pass filter in down link.In up link, the cell phone signal in the overlay area is transmitted into corresponding base station with same working method after by up amplification link processing, thereby reaches the signal transmission of base station and mobile phone.
Traditional chamber subsystem comprises repeater, splitter, coaxial line, power splitter and antenna as shown in Figure 1.Wherein, the repeater is connected with antenna with power splitter by splitter, is connected by coaxial line between repeater, splitter and power splitter.The signal of repeater emission is transferred to antenna after by splitter, power splitter.Because the splitter in traditional chamber subsystem is the high pass splitter, thus this chamber subsystem can only transmission frequency at the mobile communication signal of 800-2500MHz, and can't transmit the signal of low-frequency range, such as the data-signal lower than 800MHz.The limitation of existing chamber subsystem on operating frequency caused the waste on hardware resource and space undoubtedly for the 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 based on the common transport system of chamber, repeater subsystem, this system has realized utilizing the coaxial network of existing transport communication repeater signal to carry out simultaneously the transmission of several data.
Reach for achieving the above object other relevant purposes, the invention provides a kind of coupler and based on the common transport system of chamber, repeater 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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB, wherein n＞0 branch's output of described coupler.
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 the first splitter comprises primary input end, main output and branch's output; The primary input end of described the first splitter is connected with the all-pass output of described splitter; First duplexer comprises high pass input, low pass input, closes the 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 the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter comprises primary input end, main output, branch's output; Described the 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 the 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 the second splitter; First duplexer comprises high pass input, low pass input, closes the 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 the first low pass filter; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter comprises primary input end, main output, branch's output; Described the 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 the 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 the road output; The first input end of mixer is connected with the output of the first low pass filter; The second input of mixer is connected with the output of the second low pass filter; Described the 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 the second splitter; First duplexer comprises high pass input, low pass input, closes the 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 road output that closes of described mixer; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
A kind of common transport system based on chamber, repeater subsystem comprises the repeater head end, data head end, the second duplexer, coupler, the 3rd duplexer; The repeater head end is in order to the transfer wireless communication signals; The data head end is in order to the transfer low-frequency data signal; The second duplexer is connected with the data head end with the repeater head end respectively, closes the road signal in order to wireless communication signals and low-frequency data signal are coupled into one the tunnel; 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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB branch's output of described coupler, n＞0 wherein, and described preliminary election frequency range is the frequency range more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and main output and branch's output of coupler all close the road signal in order to output; The 3rd duplexer is divided into high communication number and low-pass signal output in order to will close the road signal; The high communication number output of described the 3rd duplexer connects an antenna, and the low-pass signal output connects a data terminal or resistance.
As a preferred embodiment of the present invention, described the 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 respectively one the 3rd duplexer, the high communication number output of each the 3rd duplexer all connects an antenna, and the low-pass signal output of each the 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 the first splitter comprises primary input end, main output and branch's output; The primary input end of described the first splitter is connected with the all-pass output of described splitter; First duplexer comprises high pass input, low pass input, closes the 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 the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter comprises primary input end, main output, branch's output; Described the 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 the 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 the second splitter; First duplexer comprises high pass input, low pass input, closes the 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 the first low pass filter; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter comprises primary input end, main output, branch's output; Described the 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 the 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 the road output; The first input end of mixer is connected with the output of the first low pass filter; The second input of mixer is connected with the output of the second low pass filter; Described the 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 the second splitter; First duplexer comprises high pass input, low pass input, closes the 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 road output that closes of described mixer; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
As mentioned above, coupler of the present invention reaches the common transport system based on chamber, repeater subsystem, has following beneficial effect:
By coupler provided by the invention, can realize utilizing existing repeater coaxial network to provide various data services to the user in building, can be the broadband access the transmission of data, as EoC; It can be also the transmission of data of supervisory control system; The multiple the transmission of data that can be also and deposit.
Common transport system based on chamber, repeater subsystem of the present invention is that all or part of high pass splitter that utilizes coupler of the present invention to replace in the coaxial network of existing repeater consists of, it adopts lower than the low-frequency range of 800MHz and carries out transfer of data, realized several data and deposit transmission.
Description of drawings
Fig. 1 is the structural representation of traditional chamber subsystem.
Fig. 2 is the structural representation of embodiment one described coupler.
Fig. 3 is the structural representation of embodiment two described couplers.
Fig. 4 is the structural representation of embodiment three described couplers.
Fig. 5 is a kind of distributed architecture schematic diagram of the common transport system based on chamber, repeater subsystem of the present invention.
The 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 specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification.The present invention can also be implemented or be used by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change under spirit of the present invention not deviating from.
See also accompanying drawing.Need to prove, the diagram that provides in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy only show in graphic with the present invention in relevant assembly but not component count, shape and size drafting when implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Communication repeater station is the extensive use radio communication and plays a kind of transferring equipment that signal strengthens.Chamber, repeater subsystem system is by the repeater, and coax network and antenna form, and coaxial cable is connected a plurality of antennas with communication repeater station.The invention provides a kind of coupler, can realize that by this coupler repeater and transfer of data deposit with the 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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB, wherein n＞0 branch's output of described coupler.Described preliminary election frequency range is a part of frequency range that intercepts in the full frequency band scope, and choosing of this preliminary election frequency range can arrange 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, the first splitter 11 and first duplexer 12; Described splitter 10 comprises all-pass input, all-pass output, low pass output; Described the first splitter 11 comprises primary input end, main output and branch's output; The primary input end of described the first splitter is connected with the all-pass output of described splitter; First duplexer 12 comprises high pass input, low pass input, closes the 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 the first splitter is the main output (i.e. the 2nd output) of described coupler, described first duplexer close branch's output that the road output is described coupler (i.e. the 3rd output).
The signal frequency range that the primary input end of the described coupler of the present embodiment, main output, branch's output allow to pass through is identical; If the degree of coupling of described coupler is n dB, so can be in the full frequency band signal that allows the described coupler of input one section frequency band signals of preliminary election, the frequency band signals major part of this preliminary election is from the main output output of described coupler, only has sub-fraction from branch's output output of coupler, the frequency band signals that also can say this preliminary election decays to n dB, wherein n＞0 branch's output of coupler.
Embodiment two
The present embodiment provides a kind of coupler, and as shown in Figure 3, described coupler comprises the second splitter 13, the first low pass filter 14, the first splitter 11 and first duplexer 12; Described the second splitter 13 comprises primary input end, main output, branch's output; Described the 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 the 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 the second splitter; First duplexer 12 comprises high pass input, low pass input, closes the 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 the first low pass filter; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter can only be exported 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, the first low pass filter 14, the second low pass filter 15, mixer 16, the first splitter 11 and first duplexer 12; Described the second splitter 13 comprises primary input end, main output, branch's output; Described the 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 the 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 the road output; The first input end of mixer is connected with the output of the first low pass filter; The second input of mixer is connected with the output of the second low pass filter; Described the 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 the second splitter; First duplexer 12 comprises high pass input, low pass input, closes the 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 road output that closes of described mixer; The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is 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 the second splitter can only be exported 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 second low pass filter can be come part low-pass signal (perhaps direct current signal) intercepting of input the second splitter, by the branch output of the second low pass filter to coupler.In the described coupler of the present embodiment, the trend of each frequency band signals can arrange according to the filtering frequency range of the first low pass filter and the second low pass filter fully.
Embodiment four
The present embodiment provides a kind of common transport system based on chamber, repeater subsystem, as shown in Figure 5, should comprise based on the common transport system of chamber, repeater subsystem:
The repeater head end is in order to the transfer wireless communication signals;
The data head end is in order to the transfer low-frequency data signal;
The second duplexer is connected with the data head end with the repeater head end respectively, closes the road signal in order to wireless communication signals and low-frequency data signal are coupled into one the tunnel;
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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB branch's output of described coupler, n＞0 wherein, and described preliminary election frequency range is the frequency range more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and main output and branch's output of coupler all close the road signal in order to output;
The 3rd duplexer is divided into high communication number and low-pass signal output in order to will close the road signal; The high communication number output of described the 3rd duplexer connects an antenna, and the low-pass signal output connects a data terminal or resistance;
Power splitter is in order to be divided into input signal 2 tunnel output signals identical with input signal;
Described the 3rd duplexer can directly be connected with coupler, also can be connected with described coupler by a power splitter.If described the 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 respectively one the 3rd duplexer, the high communication number output of each the 3rd duplexer all connects an antenna, and the low-pass signal output of each the 3rd duplexer all connects a data terminal or resistance.
Described common transport system based on chamber, repeater 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 and the second duplexer, makes the area coverage of described common transport system wider.The use of power splitter can make the shunt flexible in the actual conditions of user distribution of whole common transport system.Should connect by coaxial cable based on each device in the common transport system of chamber, repeater subsystem.
The annexation of described each device that comprises based on the common transport system of chamber, repeater subsystem can be carried out according to actual needs flexible topology fully and be used, as long as can realize that described common transport system based on chamber, repeater subsystem both can connect antenna (namely realizing mobile communication), requirement that can also connection data terminal (namely realizing low-frequency data communication), the coupler in this system, the 3rd duplexer, power splitter be connection configuration in any way.
Being applied in the signal frequency range that can transmit based on the coupler in the common transport system of chamber, repeater subsystem is 0-2.5GHz, wherein mobile communication (or being called HF communication) adopts the above frequency range of 800MHz, and the following frequency range of 800MHz is adopted in low-frequency data communication.That is to say, the working frequency range of the coupler described in the present embodiment is 0-2.5GHz, and the existing coupler of this function can't be realized.Exactly because also coupler of the present invention, make and realize simultaneously the transmission of the above frequency band signals of 800MHz and the transmission of the following frequency band signals of 800MHz in the subsystem of existing chamber, takes full advantage of the hardware resource of existing chamber subsystem.
By the common transport system based on chamber, repeater subsystem provided by the invention, can realize utilizing the repeater coaxial network to provide various data services to the user in building, as broadband access, video monitoring etc.EoC (Ethernet Over Coax) is also a kind of system with coaxial line transmission bi-directional data wherein.The present invention also can utilize unnecessary optical 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 chamber, repeater subsystem of the present invention can be the broadband access transmission, as EoC; It can be also the transfer of data of supervisory control system; Can be also the several data transmission system and deposit.Should adopt based on the common transport system of chamber, repeater subsystem and carry out transfer of data (television signal transmission) lower than the low-frequency range of 800MHz.This system can adopt embodiment one to three any one described all-pass coupler to substitute all or part of high pass splitter (coupler) in the network of existing communication repeater.
So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not is used for restriction the present invention.Any person skilled in the art scholar all can under spirit of the present invention and category, modify or change above-described embodiment.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under disclosed spirit and technological thought, must be contained by claim of the present invention.
Claims (10)
1. coupler, it 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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB, wherein n＞0 branch's output of described coupler.
2. coupler claimed in claim 1, it is characterized in that: described coupler comprises splitter, the first splitter and first duplexer;
Described splitter comprises all-pass input, all-pass output, low pass output;
Described the first splitter comprises primary input end, main output and branch's output; The primary input end of described the first splitter is connected with the all-pass output of described splitter;
First duplexer comprises high pass input, low pass input, closes the 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 the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
3. coupler claimed in claim 1, it is characterized in that: described coupler comprises the second splitter, the first low pass filter, the first splitter and first duplexer;
Described the second splitter comprises primary input end, main output, branch's output;
Described the 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 the 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 the second splitter;
First duplexer comprises high pass input, low pass input, closes the 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 the first low pass filter;
The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
4. coupler claimed in claim 1, it is characterized in that: described coupler comprises the second splitter, the first low pass filter, the second low pass filter, mixer, the first splitter and first duplexer;
Described the second splitter comprises primary input end, main output, branch's output;
Described the 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 the 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 the road output; The first input end of mixer is connected with the output of the first low pass filter; The second input of mixer is connected with the output of the second low pass filter;
Described the 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 the second splitter;
First duplexer comprises high pass input, low pass input, closes the 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 road output that closes of described mixer;
The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
5. the common transport system based on chamber, repeater subsystem, is characterized in that, described common transport system based on chamber, repeater subsystem comprises:
The repeater head end is in order to the transfer wireless communication signals;
The data head end is in order to the transfer low-frequency data signal;
The second duplexer is connected with the data head end with the repeater head end respectively, closes the road signal in order to wireless communication signals and low-frequency data signal are coupled into one the tunnel;
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 n dB, and the signal that allows preliminary election frequency range in the full frequency band signal of the described coupler of input decays to n dB branch's output of described coupler, n＞0 wherein, and described preliminary election frequency range is the frequency range more than or equal to 800MHz; The primary input end of described coupler is connected with the output of the second duplexer, and main output and branch's output of coupler all close the road signal in order to output;
The 3rd duplexer is divided into high communication number and low-pass signal output in order to will close the road signal; The high communication number output of described the 3rd duplexer connects an antenna, and the low-pass signal output connects a data terminal or resistance.
6. the common transport system based on chamber, repeater subsystem according to claim 5, it is characterized in that: described the 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 respectively one the 3rd duplexer, the high communication number output of each the 3rd duplexer all connects an antenna, and the low-pass signal output of each the 3rd duplexer all connects a data terminal or resistance.
7. the common transport system based on chamber, repeater subsystem according to claim 5 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.
8. according to claim 5 to 7 any one described common transport system based on chamber, repeater subsystem is characterized in that:
Described coupler comprises splitter, the first splitter and first duplexer;
Described splitter comprises all-pass input, all-pass output, low pass output;
Described the first splitter comprises primary input end, main output and branch's output; The primary input end of described the first splitter is connected with the all-pass output of described splitter;
First duplexer comprises high pass input, low pass input, closes the 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 the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
9. according to claim 5 to 7 any one described common transport system based on chamber, repeater subsystem is characterized in that:
Described coupler comprises the second splitter, the first low pass filter, the first splitter and first duplexer;
Described the second splitter comprises primary input end, main output, branch's output;
Described the 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 the 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 the second splitter;
First duplexer comprises high pass input, low pass input, closes the 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 the first low pass filter;
The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
10. according to claim 5 to 7 any one described common transport system based on chamber, repeater subsystem, it is characterized in that: described coupler comprises the second splitter, the first low pass filter, the second low pass filter, mixer, the first splitter and first duplexer;
Described the second splitter comprises primary input end, main output, branch's output;
Described the 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 the 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 the road output; The first input end of mixer is connected with the output of the first low pass filter; The second input of mixer is connected with the output of the second low pass filter;
Described the 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 the second splitter;
First duplexer comprises high pass input, low pass input, closes the 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 road output that closes of described mixer;
The primary input end of described the second splitter is the primary input end of described coupler, and the main output of described the first splitter is the main output of described coupler, described first duplexer close branch's output that the road output is described coupler.
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| CN201110417128.4A CN103165967B (en) | 2011-12-14 | 2011-12-14 | A kind of coupler and the common transport system based on repeater room subsystem |
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| CN103972629A (en) * | 2014-04-14 | 2014-08-06 | 上海华为技术有限公司 | Combiner, base station, signal combining system and signal transmission method |
| 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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| CN103165967B (en) | 2016-01-06 |
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