CN201639586U - Variable frequency-selecting attenuator and repeater station - Google Patents
Variable frequency-selecting attenuator and repeater station Download PDFInfo
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- CN201639586U CN201639586U CN 200920277632 CN200920277632U CN201639586U CN 201639586 U CN201639586 U CN 201639586U CN 200920277632 CN200920277632 CN 200920277632 CN 200920277632 U CN200920277632 U CN 200920277632U CN 201639586 U CN201639586 U CN 201639586U
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Abstract
The utility model provides a variable frequency-selecting attenuator and a repeater station, which belong to the technical field of communication. The variable frequency-selecting attenuator comprises a frequency selecting module, an attenuation module and a combination module, wherein the frequency selecting module is used for receiving wireless signals and dividing the received wireless signals into a first wireless signal and a second wireless signal according to preset frequency range; the attenuation module is connected with the frequency selecting module, is used for receiving the second wireless signal output by the frequency selecting module and carries out power attenuation treatment on the second wireless signal according to the preset attenuation value to obtain a third wireless signal; and the combination module is respectively connected with the frequency selecting module and the attenuation module, is used for receiving the first wireless signal output by the frequency selecting module and the third wireless signal output by the attenuation module, outputs the first wireless signal and the third wireless signal in a combination mode, and can effectively reduce uplink interference on a base station.
Description
Technical field
The utility model belongs to communication technical field, relates in particular to a kind of type variable frequency-selecting attenuator and repeater.
Background technology
At present, black repeater generally is installed in relatively sealing and mobile phone signal covers weak zone, such as basement.These zones are generally contracted to the personal accomplishment rental house and are used, and in order to satisfy the demand of tenant for mobile phone signal, some contractors can install cheap signal amplifying apparatus.Because these equipment prices are cheap, simple in structure, can't adjust up gain, generally much noise can be introduced the up link of base station, and uplink interference is caused in the base station.
Problems such as the uplink interference of base station tends to cause that call drop, speech quality variation, covering are dwindled seriously influence mobile subscriber's client perception degree.The current interference that the base station is produced no more than black repeater that each mobile communication carrier is had the greatest impact.The black repeater of elimination is each common carrier problem anxious to be solved for the uplink interference of base station.The uplink interference that each operator brings for black repeater does not all have good solution.
The utility model content
In order to address the above problem, the purpose of this utility model provides a kind of type variable frequency-selecting attenuator and repeater, can effectively reduce the uplink interference to the base station.
In order to achieve the above object, the utility model provides a kind of type variable frequency-selecting attenuator, comprising:
One frequency-selecting module is used to receive wireless signal, and according to the frequency preset scope, the described wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module is connected with described frequency-selecting module, is used to receive described second wireless signal of described frequency-selecting module output, and according to default pad value described second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes the road module, is connected with attenuation module with described frequency-selecting module respectively, is used to receive first wireless signal of described frequency-selecting module output and the 3rd wireless signal of described attenuation module output, and described first wireless signal and the 3rd wireless signal are merged output.
Preferably, described type variable frequency-selecting attenuator also comprises:
One control module is connected with described frequency-selecting module with described attenuation module respectively, is used to control the value of described frequency preset scope and the pad value of presetting.
Preferably, described type variable frequency-selecting attenuator also comprises:
One input module is connected with described control module, is used for incoming frequency scope and pad value.
Preferably, described type variable frequency-selecting attenuator also comprises:
One display module is connected with described control module, is used for showing one or more of pad value of the frequency range of described frequency preset scope, described input, described default pad value and described input.
The utility model also provides a kind of repeater, comprise: the power amplifier of first duplexer, second duplexer and up link, the input of the power amplifier of described up link is connected with described second duplexer, described repeater also comprises: type variable frequency-selecting attenuator, the input of described type variable frequency-selecting attenuator is connected with the output of the power amplifier of described up link, the output of described type variable frequency-selecting attenuator is connected with described first duplexer, wherein
Described type variable frequency-selecting attenuator comprises:
One frequency-selecting module is connected with the output of the power amplifier of described up link, is used to receive wireless signal, and according to the frequency preset scope, the described wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module is connected with described frequency-selecting module, is used to receive described second wireless signal of described frequency-selecting module output, and according to default pad value described second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes the road module, be connected with attenuation module with described frequency-selecting module respectively, be used to receive first wireless signal of described frequency-selecting module output and the 3rd wireless signal of described attenuation module output, and described first wireless signal and the merging of the 3rd wireless signal are exported to described first duplexer.
Preferably, described type variable frequency-selecting attenuator also comprises:
One control module is connected with the frequency-selecting module with described attenuation module respectively, is used to control the value of described frequency preset scope and the pad value of presetting.
Preferably, described type variable frequency-selecting attenuator also comprises:
One input module is connected with described control module, is used for incoming frequency scope and pad value.
Preferably, described type variable frequency-selecting attenuator also comprises:
One display module is connected with described control module, is used for showing one or more of pad value of the frequency range of described frequency preset scope, described input, described default pad value and described input.
As shown from the above technical solution, by a type variable frequency-selecting attenuator is set in the repeater, make and to adjust attenuation and frequency of fadings by this type variable frequency-selecting attenuator, adjust the direct end uplink effects of jamming thereby reach, in the uplink interference that reduces the base station, do not influence the amplification effect of down link.
Description of drawings
Fig. 1 is the circuit diagram of the type variable frequency-selecting attenuator in the utility model;
Fig. 2 is the circuit diagram of the repeater in the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer,, the utility model embodiment is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present utility model and explanation are used to explain the utility model, but not as to qualification of the present utility model.
Referring to Fig. 1, be the circuit diagram of the type variable frequency-selecting attenuator in the utility model, by among the figure as can be known this type variable frequency-selecting attenuator comprise:
One frequency-selecting module 11 is used to receive wireless signal, and according to the frequency preset scope, the wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module 12 is connected with this frequency-selecting module 11, is used to receive second wireless signal of these frequency-selecting module 11 outputs, and according to default pad value second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes road module 13, is connected with attenuation module 12 with frequency-selecting module 11 respectively, is used to receive first wireless signal of frequency-selecting module 11 outputs and the 3rd wireless signal of attenuation module 12 outputs, and first wireless signal and the 3rd wireless signal are merged output.
One control module 14 is connected with frequency-selecting module 11 with attenuation module 12 respectively, is used to control the value of frequency preset scope and the pad value of presetting.
One input module 15 is connected with control module 14, is used for incoming frequency scope and pad value.
One display module 16 is connected with control module 14, is used for showing one or more of pad value of the frequency range of frequency preset scope, input, default pad value and input.
In the present embodiment, frequency-selecting module 11 receives wireless signal, when needs carry out the power attenuation processing, can be according to the frequency preset scope, the wireless signal that receives is divided into first wireless signal and second wireless signal, wherein first wireless signal is by the bypass end output of frequency-selecting module 11, and second wireless signal is by the attenuation end output of frequency-selecting module 11.If when not carrying out the power attenuation processing, this wireless signal is exported by the bypass end.This frequency preset scope can be arranged in the control module 14, frequency-selecting module 11 is controlled according to the frequency preset scope by control module 14 then, certainly do not limit the frequency preset scope in the present embodiment, can adjust this frequency preset scope according to actual conditions, for example by input module 15 incoming frequency scopes.
When needs carry out the power attenuation processing, second wireless signal that attenuation module 12 receives from frequency-selecting module 11, and this attenuation module 12 is carried out power attenuation to second wireless signal and is handled according to default pad value.Should can be arranged in the control module 14 by default pad value, attenuation module is controlled according to default pad value by control module 14 then, certainly do not limit default pad value in the present embodiment, can adjust this default pad value according to actual conditions, for example by input module 15 input attenuation values.
In the present embodiment, for the ease of frequency preset scope and default pad value are adjusted, one input equipment 15 also can be set, this input equipment 15 is connected with control module 14, but also can by a display module 16 that is connected with control module 14 show input/default frequency range and pad value.
Referring to Fig. 2, circuit diagram for the repeater in the utility model, by among the figure as can be known, one type variable frequency-selecting attenuator is set in the up link of existing repeater, the input of this type variable frequency-selecting attenuator is connected with the output of the power amplifier of up link, the output of type variable frequency-selecting attenuator is connected with first duplexer, the input of the power amplifier of up link is connected with second duplexer, this first duplexer is connected with the base station by the first antenna (not shown), this second duplexer is by the second antenna (not shown) and portable terminal wireless connections, and wherein type variable frequency-selecting attenuator comprises:
One frequency-selecting module is connected with the output of the power amplifier of this up link, is used to receive wireless signal, and according to the frequency preset scope, the wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module is connected with the frequency-selecting module, is used to receive second wireless signal of frequency-selecting module output, and according to default pad value second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes the road module, is connected with attenuation module with the frequency-selecting module respectively, is used to receive first wireless signal of frequency-selecting module output and the 3rd wireless signal of attenuation module output, and first wireless signal and the merging of the 3rd wireless signal are exported to first duplexer.
In another embodiment of the present utility model, this repeater also comprises:
One control module is connected with the frequency-selecting module with attenuation module respectively, is used to control the value of frequency preset scope and the pad value of presetting.
One input module is connected with control module, is used for incoming frequency scope and pad value.
One display module is connected with control module, is used for showing one or more of pad value of the frequency range of frequency preset scope, input, default pad value and input.
As shown from the above technical solution, by a type variable frequency-selecting attenuator is set between first duplexer in the repeater and the up-link power amplifier, make and to adjust attenuation and frequency of fadings by this type variable frequency-selecting attenuator, adjust the direct end uplink effects of jamming thereby reach, and when going the Interference Control of chain in realization, do not influence the amplification effect of down link.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. a type variable frequency-selecting attenuator is characterized in that, comprising:
One frequency-selecting module is used to receive wireless signal, and according to the frequency preset scope, the described wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module is connected with described frequency-selecting module, is used to receive described second wireless signal of described frequency-selecting module output, and according to default pad value described second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes the road module, is connected with attenuation module with described frequency-selecting module respectively, is used to receive first wireless signal of described frequency-selecting module output and the 3rd wireless signal of described attenuation module output, and described first wireless signal and the 3rd wireless signal are merged output.
2. type variable frequency-selecting attenuator according to claim 1 is characterized in that, described type variable frequency-selecting attenuator also comprises:
One control module is connected with described frequency-selecting module with described attenuation module respectively, is used to control the value of described frequency preset scope and the pad value of presetting.
3. type variable frequency-selecting attenuator according to claim 2 is characterized in that, described type variable frequency-selecting attenuator also comprises:
One input module is connected with described control module, is used for incoming frequency scope and pad value.
4. type variable frequency-selecting attenuator according to claim 3 is characterized in that, described type variable frequency-selecting attenuator also comprises:
One display module is connected with described control module, is used for showing one or more of pad value of the frequency range of described frequency preset scope, described input, described default pad value and described input.
5. repeater, comprise: the power amplifier of first duplexer, second duplexer and up link, the input of the power amplifier of described up link is connected with described second duplexer, it is characterized in that, also comprise: type variable frequency-selecting attenuator, the input of described type variable frequency-selecting attenuator is connected with the output of the power amplifier of described up link, and the output of described type variable frequency-selecting attenuator is connected with described first duplexer, wherein
Described type variable frequency-selecting attenuator comprises:
One frequency-selecting module is connected with the output of the power amplifier of described up link, is used to receive wireless signal, and according to the frequency preset scope, the described wireless signal that receives is divided into first wireless signal and second wireless signal;
One attenuation module is connected with described frequency-selecting module, is used to receive described second wireless signal of described frequency-selecting module output, and according to default pad value described second wireless signal is carried out power attenuation and handle, and obtains the 3rd wireless signal;
One closes the road module, be connected with attenuation module with described frequency-selecting module respectively, be used to receive first wireless signal of described frequency-selecting module output and the 3rd wireless signal of described attenuation module output, and described first wireless signal and the merging of the 3rd wireless signal are exported to described first duplexer.
6. repeater according to claim 5 device is characterized in that, described type variable frequency-selecting attenuator also comprises:
One control module is connected with the frequency-selecting module with described attenuation module respectively, is used to control the value of described frequency preset scope and the pad value of presetting.
7. repeater according to claim 6 is characterized in that, described type variable frequency-selecting attenuator also comprises:
One input module is connected with described control module, is used for incoming frequency scope and pad value.
8. repeater according to claim 7 is characterized in that, described type variable frequency-selecting attenuator also comprises:
One display module is connected with described control module, is used for showing one or more of pad value of the frequency range of described frequency preset scope, described input, described default pad value and described input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277632 CN201639586U (en) | 2009-11-30 | 2009-11-30 | Variable frequency-selecting attenuator and repeater station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277632 CN201639586U (en) | 2009-11-30 | 2009-11-30 | Variable frequency-selecting attenuator and repeater station |
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| Publication Number | Publication Date |
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| CN201639586U true CN201639586U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200920277632 Expired - Lifetime CN201639586U (en) | 2009-11-30 | 2009-11-30 | Variable frequency-selecting attenuator and repeater station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187985A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团公司 | Communication equipment and communication system |
| CN103369586A (en) * | 2012-03-28 | 2013-10-23 | 中兴通讯股份有限公司 | Base station uplink external interference processing method and base station uplink external interference processing device |
| CN109639354A (en) * | 2018-12-21 | 2019-04-16 | 京信通信系统（中国）有限公司 | It is a kind of change repeater message transmission rate method and repeater |
-
2009
- 2009-11-30 CN CN 200920277632 patent/CN201639586U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187985A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团公司 | Communication equipment and communication system |
| CN103369586A (en) * | 2012-03-28 | 2013-10-23 | 中兴通讯股份有限公司 | Base station uplink external interference processing method and base station uplink external interference processing device |
| CN103369586B (en) * | 2012-03-28 | 2018-04-20 | 中兴通讯股份有限公司 | A kind of method and device for handling the interference of base station uplink outer |
| CN109639354A (en) * | 2018-12-21 | 2019-04-16 | 京信通信系统（中国）有限公司 | It is a kind of change repeater message transmission rate method and repeater |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
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| CX01 | Expiry of patent term |