CN216217580U - Automatic balanced single-band multi-frequency-point wireless repeater - Google Patents
Automatic balanced single-band multi-frequency-point wireless repeater Download PDFInfo
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- CN216217580U CN216217580U CN202122095645.6U CN202122095645U CN216217580U CN 216217580 U CN216217580 U CN 216217580U CN 202122095645 U CN202122095645 U CN 202122095645U CN 216217580 U CN216217580 U CN 216217580U
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Abstract
The utility model relates to the technical field of wireless repeaters, in particular to an automatic balanced single-band multi-frequency-point wireless repeater, wherein a downlink duplexer and an uplink duplexer are respectively arranged on the left side and the right side in a repeater body, a donor antenna is arranged on the left side of the repeater body and connected with the downlink duplexer, a retransmission antenna is arranged on the right side of the repeater body and connected with the uplink duplexer, the downlink duplexer is connected with a downlink combiner through a downlink low-noise amplifier a and a downlink low-noise amplifier b, the downlink combiner is connected with the downlink power amplifier through a lead, the downlink power amplifier is connected with the uplink duplexer through a lead, and a single-mode device can be used for uniformly amplifying uplink signals of different operators in the same frequency band, so that a good uplink coverage is realized while a base station is not interfered.
Description
Technical Field
The utility model relates to the technical field of wireless repeaters, in particular to an automatic balanced single-band multi-frequency-point wireless repeater.
Background
4G networks are deployed on a large scale at present, but a large number of closed places such as underground parking lots and elevators do not have 4G signals, so that the applications of user communication, mobile payment, positioning navigation and the like are influenced, and in these areas, due to small traffic, operators often consider that only 4G coverage is completed in consideration of cost and the number of users even though 5G is deployed on a large scale, so that 4G wireless repeaters can be adopted to complete coverage. And the property side often requires to complete the 4G signal coverage of a plurality of operators at one time, so either a multiband 4G wireless repeater or a single-band multiband multi-frequency-point 4G wireless repeater (the band has 4G frequency points of a plurality of operators) is used. The multi-band 4G wireless repeater has high manufacturing cost, the single-band multi-frequency point 4G wireless repeater has low price, but the problem that the input signal strength of the 4G frequency points of different operators under the same frequency band is unbalanced exists, so that the 4G signal output of some operators is high, the coverage requirement can be met, but the 4G signal output of some operators is weak, and the coverage requirement cannot be met. Therefore, measures need to be taken to equalize the output signal strength of the 4G signals of the different operators in the single frequency band.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides an automatic-equalization single-band multi-frequency-point wireless repeater.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: automatic balanced single-band multi-frequency-point wireless repeater, including the repeater body, this internal being provided with of repeater:
the downlink duplexer is used for filtering, shunting and combining a downlink input signal and an uplink output signal and secondarily separating 4G frequency points of different operators for the downlink signal;
the uplink duplexer is used for filtering, shunting and combining the uplink input signal and the downlink output signal and secondarily separating the 4G frequency points of different operators for the uplink signal;
the downlink low-noise amplifier a is used for detecting, filtering and amplifying a downlink input 4G frequency point of a first operator at a low power;
the downlink low-noise amplifier b is used for detecting, filtering and amplifying a downlink input 4G frequency point of a second operator at a low power;
the downlink combiner is used for combining the signals output by the downlink low noise amplifier a and the downlink low noise amplifier b;
the downlink power amplifier is used for amplifying the signal output by the downlink combiner into a high-power signal to realize downlink coverage;
the uplink low-noise amplifier a is used for detecting, filtering and amplifying a 4G frequency point input by a first operator in an uplink manner;
the uplink low-noise amplifier b is used for detecting, filtering and amplifying a 4G frequency point input by a second operator in an uplink mode;
the uplink combiner is used for combining the signals amplified by the uplink low-noise amplifier a and the uplink low-noise amplifier b;
the uplink power amplifier is used for amplifying signals output by the uplink combiner to realize uplink coverage for high-power signals, a downlink duplexer and an uplink duplexer are respectively arranged on the left side and the right side in the repeater body, a donor antenna is arranged on the left side of the repeater body and connected with the downlink duplexer, a retransmission antenna is arranged on the right side of the repeater body and connected with the uplink duplexer, the downlink duplexer is connected with a downlink low-noise amplifier b through a downlink low-noise amplifier a and a downlink combiner through a wire, the downlink combiner is connected with the downlink power amplifier through a wire, the downlink power amplifier is connected with the uplink duplexer through a wire, the uplink duplexer is connected with the uplink combiner through an uplink low-noise amplifier a and an uplink low-noise amplifier b, and the left side and the right side of the uplink power amplifier are respectively connected with the downlink duplexer and the uplink combiner through wires.
In order to facilitate reading and controlling parameters and functions of each module, the repeater has the improvement that a monitoring system is arranged in the repeater body.
In order to improve the heat dissipation performance of the repeater body, the improvement of the utility model is that a temperature sensor is arranged in the repeater body, the side wall of the repeater body is provided with heat dissipation holes, the positions of the side wall of the repeater body, which correspond to the heat dissipation holes, are provided with heat dissipation fans, and the input ends of the heat dissipation fans are connected with the temperature sensor.
In order to facilitate the detection of different downlink input signals of different operators, the utility model has the improvement that the downlink low-noise amplifier a supports telecommunication downlink frequency bands 2110-2130 MHz, and the downlink low-noise amplifier b supports Unicom downlink frequency bands 2130-2170 MHz.
In order to facilitate the detection of different uplink input signals of different operators, the utility model has the improvement that the uplink low-noise amplifier a supports a telecommunication uplink frequency band of 1920-1940 MHz, and the uplink low-noise amplifier b supports a communication uplink of 1940-1980 MHz.
In order to facilitate observation of the operation condition of the repeater body, the utility model has the improvement that the observation window is arranged at the front end of the repeater body.
The telecommunication and the communication use a 2.1G frequency band as 4G coverage, the telecommunication uplink is 1920-1940 MHz, the telecommunication downlink is 2110-2130 MHz, the communication uplink is 1940-1980 MHz (20 Mz bandwidth is used by 4G), and the communication downlink is 2130-2170 MHz (20 Mz bandwidth is used by 4G).
Meanwhile, because the 4G frequency point of the same operator in a certain frequency band is fixed, the uplink and downlink low-noise amplifier can use a fixed bandwidth filtering method to complete the filtering of the 4G frequency points of different operators in the same frequency band. After the 4G wireless repeater is installed and powered up, the monitoring system detects the downlink input signal strength of the downlink low-noise amplifiers a and b according to the same frequency, the signal strength of the downlink low-noise amplifiers a and b is averaged and compared with the signal strength of the same detection times, the difference value of the two low-noise amplifier input signal strengths can be obtained, the attenuation degree of the downlink low-noise amplifier with the strong downlink input signal strength is automatically set to be the difference value, the two low-noise amplifier output signal strengths are basically the same, and the attenuation degree is called as downlink attenuation degree 1. And automatically setting the attenuation degree which is the same as the downlink attenuation degree 1 value for the uplink low-noise amplifier of the same operator, wherein the attenuation degree is called as the uplink attenuation degree 1. And then automatically setting or manually setting attenuation according to the rated power of the output signal power of the uplink and downlink power amplifiers, wherein the attenuation is called downlink attenuation 2 and uplink attenuation 2. At this time, for the operator 4G frequency point with strong downlink input signal, the downlink attenuation degree is: downlink attenuation degree 1+ downlink attenuation degree 2, and the uplink attenuation degree is as follows: the uplink attenuation degree is 1+ 2; for the operator 4G frequency point with weaker downlink input signal, the downlink attenuation degree is as follows: the downlink attenuation degree is 2, and the uplink attenuation degree is: the degree of upstream attenuation is 2. The setting can realize that the uplink and downlink output power of the 4G frequency points of different operators in the same frequency band can be approximately balanced, so that the balanced coverage of the 4G signals of a plurality of operators can be completed by installing a single-mode device. Therefore, the device monitors the 4G signal input intensity of the frequency band of each operator at a certain period, and when the variation range exceeds the set threshold, the uplink and downlink attenuation degrees 1 are correspondingly adjusted.
(III) advantageous effects
Compared with the prior art, the utility model provides the automatically balanced single-band multi-frequency-point wireless repeater, which has the following beneficial effects:
this automatic balanced single-band multifrequency point wireless repeater, through the setting that a and the downlink low noise were put to down low noise, can detect respectively and amplify the 2.1G frequency channel downlink signal of telecommunications and UNICOM to the gain is adjusted, makes down the low noise put a and down the low noise and put the signal intensity that b output the same, then enlargies after conveying down power amplifier after the combiner of down combiner, and the rethread is gone up duplexer port 4 and is sent the retransmission antenna and accomplish down and cover. Through the processing, the single-mode equipment can be used for uniformly amplifying the downlink signals of different operators in the same frequency band, so that good downlink coverage is realized. Through the setting of the uplink low-noise amplifier a and the uplink low-noise amplifier b, the uplink signals of 2.1G frequency bands of telecom and Unicom can be detected and amplified respectively, the gain is adjusted, the signal strength output by the uplink low-noise amplifier a and the uplink low-noise amplifier b is the same, the signals are combined by the uplink combiner and then transmitted to the uplink power amplifier for amplification, and then transmitted to the donor antenna through the downlink duplexer port 4 to complete uplink coverage. Through the processing, the uplink signals of different operators in the same frequency band can be amplified in a balanced manner by using a single-mode device, so that the base station is not interfered while good uplink coverage is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a repeater body structure according to the present invention;
FIG. 3 is a front view of a repeater body according to the present invention;
in the figure: 1. a repeater body; 2. a downlink duplexer; 3. an uplink duplexer; 4. b, downlink low noise amplification a; 5. b, downlink low noise amplification; 6. a downlink combiner; 7. a downlink power amplifier; 8. b, uplink low-noise amplification a; 9. b, uplink low-noise amplification; 10. an uplink combiner; 11. performing uplink power amplification; 12. a monitoring system; 13. a temperature sensor; 14. a heat radiation fan; 15. and (4) an observation window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an automatic balanced single-band multi-frequency-point wireless repeater includes a repeater body 1, wherein the repeater body 1 is provided with:
the downlink duplexer 2 is used for filtering, shunting and combining the downlink input signal and the uplink output signal and secondarily separating the 4G frequency points of different operators for the downlink signal;
the uplink duplexer 3 is used for filtering, shunting and combining the uplink input signal and the downlink output signal and secondarily separating 4G frequency points of different operators for the uplink signal;
the downlink low-noise amplifier a4 is used for detecting, filtering and amplifying a downlink input 4G frequency point of a first operator;
the downlink low-noise amplifier b5 is used for detecting, filtering and amplifying a downlink input 4G frequency point of a second operator with low power;
the downlink combiner 6 is used for combining signals output by the downlink low-noise amplifier a4 and the downlink low-noise amplifier b 5;
the downlink power amplifier 7 is used for amplifying the signal output by the downlink combiner 6 into a high-power signal to realize downlink coverage;
the uplink low-noise amplifier a8 is used for detecting, filtering and amplifying a 4G frequency point input by a first operator in an uplink manner;
the uplink low-noise amplifier b9 is used for detecting, filtering and amplifying a 4G frequency point input by a second operator in an uplink mode;
the uplink combiner 10 is used for combining the signals amplified by the uplink low-noise amplifier a8 and the uplink low-noise amplifier b 9;
an uplink power amplifier 11 for amplifying the signal output by the uplink combiner 10 into a high-power signal to realize uplink coverage, the left side and the right side in the repeater body 1 are respectively provided with a downlink duplexer 2 and an uplink duplexer 3, the left side of the repeater body 1 is provided with a donor antenna which is connected with a downlink duplexer 2, the right side of the repeater body 1 is provided with a retransmission antenna which is connected with an uplink duplexer 3, the downstream duplexer 2 is connected with the downstream combiner 6 through a downstream low-noise amplifier a4 and a downstream low-noise amplifier b5, the downlink combiner 6 is connected with a downlink power amplifier 7 through a lead, the downlink power amplifier 7 is connected with the uplink duplexer 3 through a lead, the uplink duplexer 3 is connected with the uplink combiner 10 through an uplink low-noise amplifier a8 and an uplink low-noise amplifier b9, the left side and the right side of the uplink power amplifier 11 are respectively connected with the downlink duplexer 2 and the uplink combiner 10 through conducting wires.
The repeater body 1 is internally provided with a monitoring system 12, which is convenient for reading and controlling parameters and functions of each module.
The repeater is characterized in that a temperature sensor 13 is arranged in the repeater body 1, heat dissipation holes are formed in the side wall of the repeater body 1, a heat dissipation fan 14 is arranged at the position, corresponding to the heat dissipation holes, of the side wall of the repeater body 1, and the input end of the heat dissipation fan 14 is connected with the temperature sensor 13, so that the heat dissipation performance of the repeater body 1 is improved conveniently.
The downlink low-noise amplifier a4 supports telecommunication downlink frequency bands 2110-2130 MHz, and the downlink low-noise amplifier b5 supports communicated downlink frequency bands 2130-2170 MHz, so that detection of different downlink input signals of different operators is facilitated.
The uplink low-noise amplifier a8 supports a telecommunication uplink frequency band of 1920-1940 MHz, and the uplink low-noise amplifier b9 supports a communication uplink of 1940-1980 MHz, so that detection of different uplink input signals of different operators is facilitated.
The observation window 15 is arranged at the front end of the repeater body 1, so that the operation condition of the repeater body 1 can be observed conveniently.
The telecommunication and the communication use a 2.1G frequency band as 4G coverage, the telecommunication uplink is 1920-1940 MHz, the telecommunication downlink is 2110-2130 MHz, the communication uplink is 1940-1980 MHz (20 Mz bandwidth is used by 4G), and the communication downlink is 2130-2170 MHz (20 Mz bandwidth is used by 4G).
Meanwhile, because the 4G frequency point of the same operator in a certain frequency band is fixed, the uplink and downlink low-noise amplifier can use a fixed bandwidth filtering method to complete the filtering of the 4G frequency points of different operators in the same frequency band. After the 4G wireless repeater is installed and powered up, the monitoring system 12 detects the downlink input signal strengths of the downlink low-noise amplifiers a4 and b according to the same frequency, compares the downlink input signal strengths with the signal strength of the same detection times after averaging, and can obtain the difference value between the two downlink input signal strengths, and automatically sets the attenuation degree of the downlink input signal strength of the low-noise amplifier as the difference value, so that the two downlink input signal strengths of the low-noise amplifier are basically the same, and the attenuation degree is called as downlink attenuation degree 1. And automatically setting the attenuation degree which is the same as the downlink attenuation degree 1 value for the uplink low-noise amplifier of the same operator, wherein the attenuation degree is called as the uplink attenuation degree 1. And then, automatically setting or manually setting attenuation according to the rated power of the output signal power of the uplink and downlink power amplifier 7, wherein the attenuation is called downlink attenuation 2 and uplink attenuation 2. At this time, for the operator 4G frequency point with strong downlink input signal, the downlink attenuation degree is: downlink attenuation degree 1+ downlink attenuation degree 2, and the uplink attenuation degree is as follows: the uplink attenuation degree is 1+ 2; for the operator 4G frequency point with weaker downlink input signal, the downlink attenuation degree is as follows: the downlink attenuation degree is 2, and the uplink attenuation degree is: the degree of upstream attenuation is 2. The setting can realize that the uplink and downlink output power of the 4G frequency points of different operators in the same frequency band can be approximately balanced, so that the balanced coverage of the 4G signals of a plurality of operators can be completed by installing a single-mode device. Therefore, the device monitors the 4G signal input intensity of the frequency band of each operator at a certain period, and when the variation range exceeds the set threshold, the uplink and downlink attenuation degrees 1 are correspondingly adjusted.
To sum up, when the single-band multi-frequency-point wireless repeater with automatic equalization is used, after a donor antenna is installed on equipment and receives downlink signals of a telecommunication and a connected 2.1G base station, the downlink signals enter a downlink duplexer 2 through a port of the downlink duplexer 2, meanwhile, the wireless signals are filtered, so that a downlink low-noise amplifier a4 only receives signals of telecommunication downlink bands 2110-2130 MHz, a downlink low-noise amplifier b5 only receives signals of the connected downlink bands 2130-2170 MHz, downlink low-noise amplifier a4 and downlink low-noise amplifier b5 respectively detect and amplify the downlink signals of the telecommunication and the connected 2.1G bands, gain is adjusted, the signal intensities output by the downlink low-noise amplifier a4 and the downlink low-noise amplifier b5 are the same, then the signals are combined by a downlink combiner 6 and then transmitted to a downlink power amplifier 7 for amplification, and then the signals are transmitted to a retransmission antenna through an uplink combiner 3 to complete downlink coverage. Through the processing, the single-mode equipment can be used for uniformly amplifying the downlink signals of different operators in the same frequency band, so that good downlink coverage is realized.
When the device receives an uplink signal of a telecommunication and communication terminal through a retransmission antenna, the uplink signal firstly enters an uplink duplexer 3 through a port of the uplink duplexer 3, and meanwhile, a wireless signal is filtered, so that an uplink low-noise amplifier a8 only receives signals of 1920-1940 MHz of a telecommunication uplink frequency band, an uplink low-noise amplifier b9 only receives signals of 1940-1980 MHz of a communication uplink frequency band, an uplink low-noise amplifier a8 and an uplink low-noise amplifier b9 respectively detect and amplify uplink signals of 2.1G frequency bands of the telecommunication and communication, gain is adjusted, so that the signal strength output by the uplink low-noise amplifier a8 and the signal strength output by the uplink low-noise amplifier b9 are the same, then the signals are transmitted to an uplink power amplifier 11 after being combined through an uplink combiner 10 and then are transmitted to a donor antenna through a downlink duplexer 2 to complete uplink coverage. Through the processing, the uplink signals of different operators in the same frequency band can be amplified in a balanced manner by using a single-mode device, so that the base station is not interfered while good uplink coverage is realized.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic balanced single-band multi-frequency-point wireless repeater, includes repeater body (1), its characterized in that: a downlink duplexer (2), an uplink duplexer (3), a downlink low-noise amplifier a (4), a downlink low-noise amplifier b (5), a downlink combiner (6), a downlink power amplifier (7), an uplink low-noise amplifier a (8), an uplink low-noise amplifier b (9), an uplink combiner (10) and an uplink power amplifier (11) are arranged in the repeater body (1), the downlink duplexer (2) and the uplink duplexer (3) are respectively arranged on the left side and the right side in the repeater body (1), a donor antenna is arranged on the left side of the repeater body (1) and connected with the downlink duplexer (2), a retransmission antenna is arranged on the right side of the repeater body (1) and connected with the uplink duplexer (3), the downlink duplexer (2) is connected with the downlink low-noise amplifier b (5) through the downlink low-noise amplifier a (4), the down-line combiner (6) is connected with a down-line power amplifier (7) through a lead, the down-line power amplifier (7) is connected with an up-line duplexer (3) through a lead, the up-line duplexer (3) is connected with an up-line combiner (10) through an up-line low noise amplifier a (8) and an up-line low noise amplifier b (9), and the left side and the right side of the up-line power amplifier (11) are respectively connected with the down-line duplexer (2) and the up-line combiner (10) through leads.
2. The automatically equalized single-band multi-frequency point wireless repeater according to claim 1, wherein: the repeater body (1) is internally provided with a monitoring system (12).
3. The automatically equalized single-band multi-frequency point wireless repeater according to claim 1, wherein: the repeater is characterized in that a temperature sensor (13) is arranged in the repeater body (1), heat dissipation holes are formed in the side wall of the repeater body (1), a heat dissipation fan (14) is arranged at the position, corresponding to the heat dissipation holes, of the side wall of the repeater body (1), and the input end of the heat dissipation fan (14) is connected with the temperature sensor (13).
4. The automatically equalized single-band multi-frequency point wireless repeater according to claim 1, wherein: the downlink low-noise amplifier a (4) supports the telecom downlink frequency bands 2110-2130 MHz, and the downlink low-noise amplifier b (5) supports the Unicom downlink frequency bands 2130-2170 MHz.
5. The automatically equalized single-band multi-frequency point wireless repeater according to claim 1, wherein: the uplink low-noise amplifier a (8) supports a telecommunication uplink frequency band of 1920-1940 MHz, and the uplink low-noise amplifier b (9) supports a communication uplink of 1940-1980 MHz.
6. The automatically equalized single-band multi-frequency point wireless repeater according to claim 1, wherein: the repeater body (1) front end sets up observation window (15).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114978272A (en) * | 2022-04-29 | 2022-08-30 | 深圳市可信华成通信科技有限公司 | Multi-band digital repeater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114978272A (en) * | 2022-04-29 | 2022-08-30 | 深圳市可信华成通信科技有限公司 | Multi-band digital repeater |
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