CN202841526U - Variable frequency combiner, its master hub unit (MHU) and radio remote unit (RRU) - Google Patents
Variable frequency combiner, its master hub unit (MHU) and radio remote unit (RRU) Download PDFInfo
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- CN202841526U CN202841526U CN 201220381586 CN201220381586U CN202841526U CN 202841526 U CN202841526 U CN 202841526U CN 201220381586 CN201220381586 CN 201220381586 CN 201220381586 U CN201220381586 U CN 201220381586U CN 202841526 U CN202841526 U CN 202841526U
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Abstract
The utility model provides a variable frequency combiner which comprises a variable frequency combiner master hub unit and a variable frequency combiner radio remote unit. The variable frequency combiner master hub unit comprises a first radio frequency interface, a first combiner interface and a first signal processing unit. The variable frequency combiner radio remote unit comprises a second radio frequency interface, a second combiner interface and a second signal processing unit. The first combiner interface and the second combiner interface are connected with each other through a video cable. After undergoing frequency conversion through the first signal processing unit, a radio-frequency signal inputted through the first radio frequency interface passes through the first combiner interface and video signal combiner and then is outputted; the radio-frequency signal is transmitted to the second combiner interface, passes through the second combiner interface and video signal shunt, and is outputted from the second radio frequency interface after undergoing frequency conversion through the second signal processing unit. The video cable which commonly exists at places such as elevators, basements and the like can be fully utilized to connect the variable frequency combiner master hub unit and the variable frequency combiner radio remote unit, so as to realize introduction and coverage of mobile communication signals. The construction is simple, and the cost is low.
Description
Technical field
The utility model relates to moving communicating field, particularly relates to a kind of frequency conversion mixer.
Background technology
Along with the fast development of Process of Urbanization Construction, and urban land is in short supply, and high-rise building is more and more, the main zones such as the basement in building, elevator, room, and mobile phone uses day by day frequent.But quite weak, the most places of the mobile phone signal in place or even signal blind zone can't satisfy normal communication in the basement, elevator etc., and this has brought many constant just for people's life, work.
Thereby, in the urgent need to solving the covering problem of the mobile communication signal in above-mentioned place.It is the difficult point that indoor distributed system covers that yet the mobile communication signal in the place such as elevator, underground parking covers always.General method is to utilize the means such as relaying repeater, leakage cable to carry out the direct covering of radiofrequency signal.Yet, need like this to arrange a large amount of radio frequency cable and relay amplifier that long construction period involves great expense.
The utility model content
The purpose of this utility model is to provide a kind of frequency conversion mixer, so that the coverage effect of mobile communication signal is remarkable, and it is simple, cheap to construct.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of frequency conversion mixer, comprise frequency conversion mixer near-end machine, frequency conversion mixer remote termination, described frequency conversion mixer near-end machine comprises the first radio frequency interface, first closes the road interface, and be connected to described the first radio frequency interface and the described first first signal processing unit that closes between the interface of road, described frequency conversion mixer remote termination comprises the second radio frequency interface, second closes the road interface, and be connected to described the second radio frequency interface and the described second secondary signal processing unit that closes between the interface of road, described first closes road interface and described second closes between the interface of road and is connected by video cables; Radiofrequency signal through the input of the first radio frequency interface, close by described first by the frequency conversion of described first signal processing unit and to export after road interface and vision signal are closed the road, transfer to described second by described video cables and close the road interface, through second close road interface and vision signal along separate routes after, after the frequency conversion of described secondary signal processing unit, export from the second radio frequency interface.
According to above-mentioned scheme of the present utility model, the video cables that can take full advantage of places such as being prevalent in elevator, basement connects frequency conversion mixer near-end machine and frequency conversion mixer remote termination, realize introducing and the covering of mobile communication signal, coverage effect is remarkable, construction is simple, cheap.
A kind of frequency conversion mixer near-end machine, comprise the first radio frequency interface, first closes the road interface, and be connected to described the first radio frequency interface and the described first first signal processing unit that closes between the interface of road, described first signal processing unit receives the radiofrequency signal through described the first radio frequency interface input, described radiofrequency signal is carried out frequency-conversion processing, and close by first and to export after road interface and vision signal are closed the road, and will close the input of road interface and carry out frequency-conversion processing with the signal of vision signal after along separate routes through first and be converted into radiofrequency signal, and by the output of the first radio frequency interface, according to scheme of the present utility model, can take full advantage of and be prevalent in elevator, the video cables in the places such as basement, realize the introducing of mobile communication signal, construction is simple, cheap.
A kind of frequency conversion mixer remote termination, comprise the second radio frequency interface, second closes the road interface, and be connected to described the second radio frequency interface and the described second secondary signal processing unit that closes between the interface of road, described secondary signal processing unit receives the radiofrequency signal through described the second radio frequency interface input, described radiofrequency signal is carried out frequency-conversion processing, and close by second and to export after road interface and vision signal are closed the road, and will close the input of road interface and carry out frequency-conversion processing with the signal of vision signal after along separate routes through second and be converted into radiofrequency signal, and by the output of the second radio frequency interface, according to above-mentioned scheme of the present utility model, can take full advantage of and be prevalent in elevator, the video cables in the places such as basement, realize the covering of mobile communication signal, coverage effect is remarkable, construction is simple, cheap.
Description of drawings
Fig. 1 is the structural representation of the frequency conversion mixer of an embodiment of the present utility model;
Fig. 2 is the structural representation of the frequency conversion mixer of another embodiment of the present utility model;
Fig. 3 is the structural representation of the specific embodiment of the first signal processing unit among Fig. 1 or Fig. 2;
Fig. 4 is the structural representation of the specific embodiment of the secondary signal processing unit among Fig. 1 or Fig. 2;
Fig. 5 is the signal flow graph of the frequency conversion mixer of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is further elaborated, but execution mode of the present utility model is not limited to this.
Embodiment
Referring to shown in Figure 1, structural representation for the frequency conversion mixer of the utility model embodiment, as shown in Figure 1, frequency conversion mixer in this embodiment, comprise frequency conversion mixer near-end machine 10, frequency conversion mixer remote termination 20, frequency conversion mixer near-end machine 10 comprises the first radio frequency interface 101, first closes road interface 102, and be connected to the first radio frequency interface 101 and the described first first signal processing unit 103 that closes between the road interface 102, frequency conversion mixer remote termination 20 comprises the second radio frequency interface 201, second closes road interface 202, and be connected to the second radio frequency interface 201 and described second and close secondary signal processing unit 203, the first between the road interface 202 and close road interface 102 and second and close between the road interface 202 and be connected by video cables 30; Radiofrequency signal through 101 inputs of the first radio frequency interface, close by first by 103 frequency conversions of first signal processing unit and to export after road interface 102 closes the road with vision signal, close road interface 202 by video cables transmission 30 to described second, through second close road interface 202 and vision signal along separate routes after, after 203 frequency conversions of secondary signal processing unit, export from the second radio frequency interface 201, here be to set forth as example take the transmission course of downstream signal, signal transmission of the present utility model, processing are not limited to this.Wherein, in actual applications, generally be that the first radio frequency interface 101 connects outside mobile communication information source, the second radio frequency interface 201 generally is to connect outside cover antenna, connects first and closes the existing video cables that video cables 30 that road interface 102 and second closes road interface 202 can be selected according to the construction site of reality construction ground.
According to above-mentioned scheme of the present utility model, the video cables 30 that can take full advantage of places such as being prevalent in elevator, basement connects frequency conversion mixer near-end machine 10 and frequency conversion mixer remote termination 20, to realize introducing and the covering of mobile communication signal, coverage effect is remarkable, construction is simple, cheap.
Therein among embodiment, as shown in Figure 2, frequency conversion mixer near-end machine 10 can also comprise the first video interface 104, the first video interface 104 connects first and closes road interface 102, frequency conversion mixer remote termination 20 can also comprise the second video interface 204, the second video interface 204 connects second and closes road interface 202, in actual applications, the first video interface 104 can be used for the connection monitoring device, vision signal is after 104 outputs of the first video interface, can show by monitor, the second video interface 204 can be used for connecting the first-class image collecting device of shooting, the vision signal that collects and radiofrequency signal transfer to frequency conversion mixer near-end machine 10 by video cables after closing the road, after 104 outputs of the first video interface, can show by monitor, wherein, the number of the second video interface 204 can be one or more, the first-class image collecting device of shooting that concrete number can connect as required and deciding.
Therein among embodiment, as shown in Figure 3, first signal processing unit 103 can comprise: the first radio frequency duplexer U1, the first frequency mixer U2, the first downstream filter U3, the first radio frequency amplifier A1, the first intermediate-frequency filter U4 that connect successively, the second radio frequency amplifier A2, the first upstream filter U5, the second frequency mixer U6, the second intermediate-frequency filter U7 that connect successively, the first low frequency amplifier A3, the first frequency synthesizer U8, the first low-frequency filter U9 that connect successively, and crystal oscillator O1; The first radio frequency duplexer U1 connects the first radio frequency interface 101, the first frequency mixer U2, the second radio frequency amplifier A2 also connect respectively the first radio frequency duplexer U1, the first frequency mixer U2 also is connected with the second frequency mixer U6, the first low frequency amplifier A3 also connects respectively the first frequency mixer U2, the second frequency mixer U6, the first intermediate-frequency filter U4, the second intermediate-frequency filter U7, the first low-frequency filter U9 also connect respectively first and close road interface 102, and crystal oscillator O1 connects respectively first frequency synthesizer U8, the first low-frequency filter U9;
As shown in Figure 4, secondary signal processing unit 203 can also comprise: the second radio frequency duplexer U11, the 3rd intermediate-frequency filter U12 that connects successively, three-mixer U13, the second downstream filter U14, the 3rd radio frequency amplifier A4, the 4th intermediate-frequency filter U15 that connects successively, the 4th frequency mixer U16, low noise amplifier A5, and the second low-frequency filter U17 that connects successively, second frequency synthesizer U18, the second low frequency amplifier A6, the second radio frequency duplexer U11 connects the second radio frequency interface 201, low noise amplifier A5, the 3rd radio frequency amplifier A4 also connects respectively the second radio frequency duplexer U11, three-mixer U13 also is connected with the 4th frequency mixer U16, described the second low frequency amplifier A6 also connects respectively three-mixer U13, the 4th frequency mixer U16, the 3rd intermediate-frequency filter U12, the 4th intermediate-frequency filter U15, the second low-frequency filter U17 also connects respectively second and closes road interface 202.
In the present embodiment, provided a kind of concrete structure of first signal processing unit 103 and secondary signal processing unit 203, but be not limited to adopt this structure, in this embodiment, when radiofrequency signal is transmitted in entering up link or down link, can be intermediate-freuqncy signal with the radiofrequency signal frequency conversion, reduce its loss in video cables.
Therein among embodiment, as shown in Figure 3, first signal processing unit 103 can also comprise that being connected to the first video interface 104 and first closes the first video filter U10 between the road interface 102, as shown in Figure 4, secondary signal processing unit 203 can also comprise that being connected to the second video interface 204 and second closes the second video filter U19 between the road interface 202, the first video filter U10 and the video filter U19 interference signal in can the filtering vision signal.
In order better to understand the utility model, signal flow graph below in conjunction with Fig. 5 is set forth operation principle of the present utility model, as shown in Figure 5, downlink radio-frequency signal input frequency conversion mixer near-end machine 10, through filtering, with the local oscillation signal mixing after frequency conversion be descending intermediate-freuqncy signal, after the amplification, close the road with reference frequency and be sent to frequency conversion mixer remote termination 20 by video cables 30, again filtering, mixing is reduced to downlink radio-frequency signal and is gone out by the aerial radiation that the outside connects.Up radiofrequency signal is inputted frequency conversion mixer remote termination 20 behind antenna reception, again amplification, mixing, be filtered into up intermediate-freuqncy signal, closes the road with the vision signal of camera input, transfers to frequency conversion mixer near-end machine 10 by video cables.The filtered device of vision signal is separated the monitor that connects for outside.Up intermediate-freuqncy signal becomes up radiofrequency signal through filtering, mixing, the outside mobile communication information source that connects of access after amplifying.
According to above-mentioned frequency conversion mixer of the present utility model, the utility model also provides a kind of frequency conversion mixer near-end machine, annexation between it each device that comprises, unit and these devices, the unit and corresponding device, unit and these devices of the frequency conversion mixer near-end machine 10 in the frequency conversion mixer in the various embodiments described above, the annexation between the unit are similar, are not given unnecessary details at this.
According to above-mentioned frequency conversion mixer of the present utility model, the utility model also provides a kind of frequency conversion mixer remote termination, annexation between it each device that comprises, unit and these devices, the unit and corresponding device, the unit of the frequency conversion mixer remote termination 20 in the frequency conversion mixer in the various embodiments described above is similar and these devices, unit between annexation, do not given unnecessary details at this.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. frequency conversion mixer, it is characterized in that, comprise frequency conversion mixer near-end machine, frequency conversion mixer remote termination, described frequency conversion mixer near-end machine comprises the first radio frequency interface, first closes the road interface, and be connected to described the first radio frequency interface and the described first first signal processing unit that closes between the interface of road, described frequency conversion mixer remote termination comprises the second radio frequency interface, second closes the road interface, and be connected to described the second radio frequency interface and the described second secondary signal processing unit that closes between the interface of road, described first closes road interface and described second closes between the interface of road and is connected by video cables; Radiofrequency signal through the input of the first radio frequency interface, close by described first by the frequency conversion of described first signal processing unit and to export after road interface and vision signal are closed the road, transfer to described second by described video cables and close the road interface, through second close road interface and vision signal along separate routes after, after the frequency conversion of described secondary signal processing unit, export from the second radio frequency interface.
2. frequency conversion mixer according to claim 1, it is characterized in that, described frequency conversion mixer near-end machine also comprises the first video interface, described the first video interface connects described first and closes the road interface, described frequency conversion mixer remote termination also comprises more than one the second video interface, and described the second video interface connects described second and closes the road interface.
3. frequency conversion mixer according to claim 2 is characterized in that:
Described first signal processing unit comprises: the first radio frequency duplexer, the first frequency mixer, the first downstream filter, the first radio frequency amplifier, the first intermediate-frequency filter that connect successively, the second radio frequency amplifier, the first upstream filter, the second frequency mixer, the second intermediate-frequency filter that connect successively, the first low frequency amplifier, first frequency synthesizer, the first low-frequency filter that connect successively, and crystal oscillator; Described the first radio frequency duplexer connects described the first radio frequency interface, described the first frequency mixer, described the second radio frequency amplifier also connects respectively described the first radio frequency duplexer, described the first frequency mixer also is connected with described the second frequency mixer, described the first low frequency amplifier also connects respectively described the first frequency mixer, described the second frequency mixer, described the first intermediate-frequency filter, described the second intermediate-frequency filter, described the first low-frequency filter also connects respectively described first and closes the road interface, and described crystal oscillator connects respectively described first frequency synthesizer, described the first low-frequency filter;
Described secondary signal processing unit comprises: the second radio frequency duplexer, the 3rd intermediate-frequency filter, three-mixer, the second downstream filter, the 3rd radio frequency amplifier that connect successively, the 4th intermediate-frequency filter, the 4th frequency mixer, the low noise amplifier that connect successively, and the second low-frequency filter, second frequency synthesizer, the second low frequency amplifier that connect successively; Described the second radio frequency duplexer connects the second radio frequency interface, described low noise amplifier, described the 3rd radio frequency amplifier also connect respectively described the second radio frequency duplexer, described three-mixer also is connected with described the 4th frequency mixer, described the second low frequency amplifier also connects respectively described three-mixer, described the 4th frequency mixer, and described the 3rd intermediate-frequency filter, described the 4th intermediate-frequency filter, described the second low-frequency filter also connect respectively described second and close the road interface.
4. according to claim 2 or 3 described frequency conversion mixers, it is characterized in that, described first signal processing unit also comprises and is connected to described the first video interface and the described first the first video filter that closes between the interface of road, and described secondary signal processing unit also comprises and is connected to described the second video interface and the described second the second video filter that closes between the interface of road.
5. frequency conversion mixer near-end machine, it is characterized in that, comprise the first radio frequency interface, first closes the road interface, and be connected to described the first radio frequency interface and the described first first signal processing unit that closes between the interface of road, described first signal processing unit receives the radiofrequency signal through described the first radio frequency interface input, described radiofrequency signal is carried out frequency-conversion processing, and close by first and to export after road interface and vision signal are closed the road, and will close the input of road interface and carry out frequency-conversion processing with the signal of vision signal after along separate routes through first and be converted into radiofrequency signal, and by the output of the first radio frequency interface.
6. frequency conversion mixer near-end machine according to claim 5 is characterized in that, also comprises the first video interface, and described the first video interface connects described first and closes the road interface.
7. frequency conversion mixer near-end machine according to claim 6 is characterized in that:
Described first signal processing unit comprises the first radio frequency duplexer, the first frequency mixer, the first downstream filter, the first radio frequency amplifier, the first intermediate-frequency filter that connect successively, the second radio frequency amplifier, the first upstream filter, the second frequency mixer, the second intermediate-frequency filter that connect successively, the first low frequency amplifier, first frequency synthesizer, the first low-frequency filter that connect successively, and crystal oscillator; Described the first radio frequency duplexer connects described the first radio frequency interface, described the first frequency mixer, described the second radio frequency amplifier also connects respectively described the first radio frequency duplexer, described the first frequency mixer also is connected with described the second frequency mixer, described the first low frequency amplifier also connects respectively described the first frequency mixer, described the second frequency mixer, described the first intermediate-frequency filter, described the second intermediate-frequency filter, described the first low-frequency filter also connects respectively described first and closes the road interface, and described crystal oscillator connects respectively described first frequency synthesizer, described the first low-frequency filter;
Or/and
Described first signal processing unit also comprises and is connected to described the first video interface and the described first the first video filter that closes between the interface of road.
8. frequency conversion mixer remote termination, it is characterized in that, comprise the second radio frequency interface, second closes the road interface, and be connected to described the second radio frequency interface and the described second secondary signal processing unit that closes between the interface of road, described secondary signal processing unit receives the radiofrequency signal through described the second radio frequency interface input, described radiofrequency signal is carried out frequency-conversion processing, and close by second and to export after road interface and vision signal are closed the road, and will close the input of road interface and carry out frequency-conversion processing with the signal of vision signal after along separate routes through second and be converted into radiofrequency signal, and by the output of the second radio frequency interface.
9. frequency conversion mixer remote termination according to claim 8 is characterized in that, also comprises more than one the second video interface, and described the second video interface connects described second and closes the road interface.
10. frequency conversion mixer remote termination according to claim 8 is characterized in that:
Described secondary signal processing unit comprises: the second radio frequency duplexer, the 3rd intermediate-frequency filter, three-mixer, the second downstream filter, the 3rd radio frequency amplifier that connect successively, the 4th intermediate-frequency filter, the 4th frequency mixer, the low noise amplifier that connect successively, and the second low-frequency filter, second frequency synthesizer, the second low frequency amplifier that connect successively; Described the second radio frequency duplexer connects the second radio frequency interface, described low noise amplifier, described the 3rd radio frequency amplifier also connect respectively described the second radio frequency duplexer, described three-mixer also is connected with described the 4th frequency mixer, described the second low frequency amplifier also connects respectively described three-mixer, described the 4th frequency mixer, and described the 3rd intermediate-frequency filter, described the 4th intermediate-frequency filter, described the second low-frequency filter also connect respectively described second and close the road interface;
Perhaps/and
Described secondary signal processing unit also comprises and is connected to described the second video interface and the described second the second video filter that closes between the interface of road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381586 CN202841526U (en) | 2012-08-01 | 2012-08-01 | Variable frequency combiner, its master hub unit (MHU) and radio remote unit (RRU) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381586 CN202841526U (en) | 2012-08-01 | 2012-08-01 | Variable frequency combiner, its master hub unit (MHU) and radio remote unit (RRU) |
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| Publication Number | Publication Date |
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| CN202841526U true CN202841526U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220381586 Expired - Fee Related CN202841526U (en) | 2012-08-01 | 2012-08-01 | Variable frequency combiner, its master hub unit (MHU) and radio remote unit (RRU) |
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| CN (1) | CN202841526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357310A (en) * | 2016-09-14 | 2017-01-25 | 京信通信系统（中国）有限公司 | Multi-input multi-output signal transmission method and system |
| CN115278575A (en) * | 2022-09-26 | 2022-11-01 | 深圳国人无线通信有限公司 | Method and system for realizing signal coverage of elevator mobile network |
-
2012
- 2012-08-01 CN CN 201220381586 patent/CN202841526U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357310A (en) * | 2016-09-14 | 2017-01-25 | 京信通信系统（中国）有限公司 | Multi-input multi-output signal transmission method and system |
| CN106357310B (en) * | 2016-09-14 | 2023-05-12 | 京信网络系统股份有限公司 | Multiple input multiple output signal transmission method and system |
| CN115278575A (en) * | 2022-09-26 | 2022-11-01 | 深圳国人无线通信有限公司 | Method and system for realizing signal coverage of elevator mobile network |
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Effective date of registration: 20170216 Address after: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Patentee after: Comba Telecom Systems (China) Co. Ltd. Patentee after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Patentee after: Comba Telecom Systems (Guangzhou) Co., Ltd. Patentee after: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. Address before: 510663 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Patentee before: Jingxin Communication Technology (Guangzhou) Co., Ltd. |
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Effective date of registration: 20200201 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Co-patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Patentee before: Comba Telecom System (China) Ltd. Co-patentee before: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20200801 |