CN214799482U - Repeater control equipment, repeater and communication system - Google Patents
Repeater control equipment, repeater and communication system Download PDFInfo
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- CN214799482U CN214799482U CN202120597115.9U CN202120597115U CN214799482U CN 214799482 U CN214799482 U CN 214799482U CN 202120597115 U CN202120597115 U CN 202120597115U CN 214799482 U CN214799482 U CN 214799482U
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Abstract
The disclosure provides a repeater control device, a repeater and a communication system, and relates to the technical field of mobile communication. The repeater control equipment of the present disclosure includes: a power detector configured to detect power of an uplink signal from a terminal; the comparator is connected with the power detector and is configured to compare the power of the uplink signal with a preset power threshold and output a corresponding amplifier working mode switching signal according to the comparison result; and a timer connected with the comparator and configured to start timing when receiving the amplifier working mode switching signal, stop timing and reset when stopping receiving the corresponding amplifier working mode switching signal; and under the condition that the timing duration is longer than the preset duration, outputting a switching signal of the working mode to the amplifier so as to adjust the gain of the amplifier, thereby reducing the interference caused by the repeaters, reducing the total uplink interference received by the base station and improving the communication quality.
Description
Technical Field
The disclosure relates to the technical field of mobile communication, in particular to a repeater control device, a repeater and a communication system.
Background
The repeater (signal amplifier) amplifies a received base station signal in a downlink direction and transmits the amplified signal to the mobile phone, and amplifies a received mobile phone signal in an uplink direction and transmits the amplified signal to the base station, as shown in fig. 1.
The signal sent by the repeater station in uplink reaches the base station, and the signal comprises:
1. amplified mobile phone signals;
2. the interference received by the amplifier is amplified and reaches the signal of the base station;
3. the thermal noise of the signal amplifier reaches the signal of the base station after being amplified.
Except that the amplified mobile phone signals are beneficial signals, the other two signals are interference signals, and the two signals are defined as I + N. Otherwise, if the condition is maintained, the larger the uplink gain is, the larger I + N is, which means the stronger the total interference signal is.
When there are multiple signal amplifiers under a base station, the total I + N is contributed by the multiple signal amplifiers, which is obviously stronger than the case of only one signal amplifier.
When there are multiple signal amplifiers under a base station, the uplink data transmitted from any terminal to the base station need to overcome not only the uplink interference caused by the signal amplifier through which the signal itself will pass, but also the uplink interference caused by other signal amplifiers. Since I + N is contributed by multiple signal amplifiers, the interference signal strength is high, which affects the uplink rate experience of the user.
SUMMERY OF THE UTILITY MODEL
An object of the present disclosure is to reduce total uplink interference received by a base station and improve communication quality.
According to an aspect of some embodiments of the present disclosure, a repeater control device is provided, which includes: a power detector configured to detect power of an uplink signal from a terminal; the comparator is connected with the power detector and is configured to compare the power of the uplink signal with a preset power threshold and output a corresponding amplifier working mode switching signal according to the comparison result; and a timer connected with the comparator and configured to start timing when receiving the amplifier working mode switching signal, stop timing and reset when stopping receiving the corresponding amplifier working mode switching signal; and outputting a switching signal of the working mode to the amplifier so as to adjust the gain of the amplifier under the condition that the timing duration is greater than the preset duration.
In some embodiments, the comparator is configured to switch the first signal of the output amplifier operation mode if the power of the uplink signal is greater than a predetermined power threshold.
In some embodiments, the comparator is configured to switch the output amplifier operation mode to the second signal if the power of the uplink signal is less than a predetermined power threshold.
In some embodiments, the timer comprises: a first timer configured to start timing when the first signal for switching the operating mode of the amplifier is received, stop timing when the first signal for switching the operating mode of the amplifier is stopped, and reset; under the condition that the timing duration is longer than the preset duration, outputting a first switching signal to the amplifier so that the amplifier is switched from the first working mode to the second working mode; and the gain of the second working mode is larger than that of the first working mode.
In some embodiments, the timer comprises: a second timer configured to start timing when the second signal for switching the operating mode of the amplifier is received, stop timing when the second signal for switching the operating mode of the amplifier is stopped, and reset; under the condition that the timing duration is longer than the preset duration, outputting a second switching signal to the amplifier so that the amplifier is switched from the second working mode to the first working mode; and the gain of the second working mode is larger than that of the first working mode.
The repeater control equipment can adjust the working mode of the amplifier according to the power condition of the uplink signal, so that the power amplification gain meets the requirement of a base station on the current uplink signal receiving, meanwhile, the interference of the gain on signals output by other repeaters is reduced, the interference among repeaters is reduced, the total uplink interference received by the base station is reduced, and the communication quality is improved.
According to an aspect of some embodiments of the present disclosure, there is provided a repeater, including: any of the above repeater control devices; and an amplifier configured to amplify an uplink signal from the terminal and output the amplified uplink signal to the base station; and switching the working modes according to a switching signal output by the repeater control equipment, wherein the working modes comprise a first working mode and a second working mode, and the gain of the second working mode is greater than that of the first working mode.
In some embodiments, the initial mode of operation of the amplifier is a first mode of operation.
In some embodiments, the communication system further comprises: a first port configured to receive an upstream signal from a terminal; and a second port configured to transmit the signal output by the amplifier to a base station.
In some embodiments, the communication system further comprises: the uplink and downlink duplex ports of the first duplexer are connected with the first port, the input port of the first duplexer is connected with the output port of the amplifier of the downlink channel, and the output port of the first duplexer is connected with the input port of the amplifier of the uplink channel; the uplink and downlink duplex ports of the second duplexer are connected with the second port, the input port is connected with the output port of the amplifier of the uplink channel, and the output port is connected with the input port of the amplifier of the downlink channel; the repeater control equipment is connected with any point between the output port of the first duplexer and the input port of the amplifier of the uplink channel.
The repeater can adjust the working mode according to the power condition of the uplink signal, so that the power amplification gain meets the receiving requirement of the base station on the current uplink signal, and simultaneously, the interference caused by the gain on signals output by other repeaters is reduced, the interference between the repeaters is reduced, the total uplink interference received by the base station is reduced, and the communication quality is improved.
According to an aspect of some embodiments of the present disclosure, there is provided a communication system including: in any of the above repeaters, the number of repeaters is greater than 1; and a base station configured to receive an uplink signal from the repeater.
In the communication system, each repeater can reduce the interference caused by the gain to signals output by other repeaters while the power amplification gain meets the receiving requirement of the base station on the current uplink signal, thereby reducing the interference caused by the repeaters, reducing the total uplink interference received by the base station and improving the communication quality.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
FIG. 1 is a diagram of some embodiments of a repeater in the related art.
FIG. 2 is a schematic diagram of some embodiments of repeater control devices of the present disclosure.
FIG. 3 is a schematic diagram of other embodiments of a repeater control apparatus of the present disclosure.
FIG. 4 is a schematic diagram of some embodiments of a repeater of the present disclosure.
FIG. 5 is a schematic diagram of other embodiments of a repeater of the present disclosure.
Fig. 6 is a schematic diagram of some embodiments of a communication system of the present disclosure.
Detailed Description
The technical solution of the present disclosure is further described in detail by the accompanying drawings and examples.
A schematic diagram of some embodiments of a repeater control apparatus of the present disclosure is shown in FIG. 2.
The repeater control device includes a power detector 201, a comparator 202 and a timer 203.
The power detector 201 can detect the uplink signal received by the repeater, determine the signal power thereof, and output the power of the uplink signal to the comparator 202.
The comparator 202 is connected to the power detector 201, compares the power output by the power detector 201 with a pre-stored predetermined power threshold, and outputs a signal according to the comparison result.
When the power of the uplink signal is greater than the pre-stored predetermined power threshold and the power of the uplink signal is less than the pre-stored predetermined power threshold, the signal output by the comparator 202 is different, for example, when the power of the uplink signal is greater than the predetermined power threshold, the first signal for switching the working mode of the output amplifier is output; and under the condition that the power of the uplink signal is less than a preset power threshold, the working mode of the output amplifier is switched to a second signal.
In some embodiments, when the power of the uplink signal is equal to a pre-stored predetermined power threshold, no signal may be output, or the preamble output state may be maintained; alternatively, when the power of the uplink signal is less than or equal to the predetermined power threshold, the comparator 202 outputs the second signal for switching the amplifier operation mode.
The timer 203 can start timing under the trigger of the signal output by the comparator 202, and output a switching signal for controlling the switching of the amplifier operation mode to the amplifier when the time length of continuously receiving the same amplifier operation mode switching signal exceeds a predetermined time length. In some embodiments, the timer 203 may start timing when receiving the amplifier operation mode switching signal, stop timing when stopping receiving the corresponding amplifier operation mode switching signal, and reset; and under the condition that the timing duration is longer than the preset duration, outputting a switching signal of the working mode to the amplifier so that the amplifier is switched between the first working mode and the second working mode. In some embodiments, the gain of the first mode of operation of the amplifier is less than the gain of the second mode of operation.
The repeater control equipment can adjust the working mode of the amplifier according to the power condition of the uplink signal, so that the power amplification gain meets the requirement of a base station on the current uplink signal receiving, meanwhile, the interference of the gain on signals output by other repeaters is reduced, the interference among repeaters is reduced, the total uplink interference received by the base station is reduced, and the communication quality is improved.
Schematic diagrams of other embodiments of repeater control apparatus of the present disclosure are shown in FIG. 3.
The power detector 301 can detect the uplink signal received by the repeater and determine its signal power, and output the signal power to the comparator 302.
The comparator 302 is connected to the power detector 301, and compares the power outputted from the power detector 301 with a pre-stored predetermined power threshold PonComparing and outputting a signal according to the comparison result. In some embodiments, when the power of the uplink signal output by the power detector 301 is greater than a pre-stored predetermined power threshold, the comparator 302 outputs a signal, e.g., a high level, to the first timer 303.
The first timer 303 starts timing according to the trigger of the comparator 302, and if the signal from the comparator 302 is interrupted (i.e. the first signal for switching the operating mode of the amplifier is stopped being received), the first timer 303 stops timing and resets (returns to zero) the timing, thereby realizing the timing of the duration time that the power of the uplink signal is greater than the pre-stored predetermined power threshold. When the timing duration is greater than the preset duration TonThe first timer 303 then outputs a first switching signal to the amplifier to switch the amplifier from the first operating mode to the second operating mode. In some embodiments, the amplifier initially operates in the first mode of operation by default.
Such repeater control device can determine whether to adjust the operating mode of the amplifier according to the signal power and duration through the cooperation of the comparator and the timer. Under normal conditions, the amplifier works in a first working mode with lower uplink gain, and the medium and low speed applications of a terminal in a coverage system are met; when a terminal has a high-speed application requirement, air interface resources (namely transmission bandwidth) can be continuously and maximally applied, and the repeater control equipment improves the uplink gain of the corresponding amplifier, so that the uplink service experience of the terminal under the amplifier is improved, and the support capability of the high-speed application is improved.
In some embodiments, when the comparator 302 determines that the power of the uplink signal output by the power detector 301 is less than a pre-stored predetermined power threshold, the comparator 302 outputs a signal, e.g., a high level, to the second timer 303.
The second timer 313 starts timing according to the trigger of the comparator 302, and if the signal from the comparator 302 is interrupted (i.e. the second signal for switching the operating mode of the amplifier is stopped being received), the second timer 313 stops timing and resets (returns to zero) the timing, thereby realizing the timing of the duration time that the power of the uplink signal is less than the pre-stored predetermined power threshold. And when the timing duration of the second timer is longer than the preset duration, outputting a second switching signal to the amplifier so that the amplifier is switched from the second working mode to the first working mode.
The repeater control equipment can timely control the amplifier to switch from the second working mode with larger gain to the first working mode with smaller gain when the power of the uplink signal is reduced, thereby meeting the current application requirements of medium and low rates, avoiding the adverse effect caused by the quality of the uplink signals of other terminals received by the base station and improving the quality of the uplink signals of the communication system.
In some embodiments, the comparator 302 does not send valid signals to the first timer 303 and the second timer 313 at the same time, for example, when sending a high level to the first timer 303, a low level is sent to the second timer 313, so as to ensure that only one timer is triggered to count at the same time, thereby improving the reliability and robustness of the control.
In some embodiments, since the first timer 303 and the second timer 313 do not count simultaneously, the first timer 303 and the second timer 313 may be the same timer 203, and when the count reaches a predetermined duration, a switching signal is output to the amplifier, and the amplifier switches between two modes according to the mode switching signal, for example, if the amplifier operates in the first operating mode, the amplifier switches to the second operating mode after receiving the switching signal; if the mobile terminal works in the second working mode, the mobile terminal is switched to the first working mode after receiving the switching signal.
The repeater control equipment has a simpler structure, reduces the cost of the device, reduces the occupation of the internal space of the repeater and improves the system integration level.
In some embodiments, timer 203 may output different signals to the amplifier depending on the signal that triggers its operation. For example, when the signal received by the timer 203 from the comparator 202 is the first signal for switching the amplifier operating mode, if the timing reaches a predetermined time, the first switching signal is output; when the signal received by the timer 203 from the comparator 202 is the second signal for switching the amplifier operating mode, if the timing reaches a predetermined time, the second switching signal is output, thereby ensuring that the amplifier operating mode is correctly switched.
The repeater control equipment has higher reliability, avoids subsequent influence caused by accidental switching failure of the working mode of the amplifier, and improves the robustness of a communication system.
A schematic diagram of some embodiments of a repeater of the present disclosure is shown in FIG. 4. The repeater includes a repeater control device 401 and an amplifier 402.
Repeater control device 401 may be any of those mentioned above. The repeater control device 401 collects the uplink signal at the front end of the signal input of the amplifier 402 for power detection, and is connected with the control end of the amplifier 402 to control the switching of the working mode of the amplifier 402.
The amplifier 402 can amplify an uplink signal from the terminal and output the amplified uplink signal to the base station; and switching the working modes according to a switching signal output by the repeater control equipment, wherein the working modes comprise a first working mode and a second working mode, and the gain of the second working mode is greater than that of the first working mode.
In some embodiments, as shown in FIG. 4, the repeater also includes a first port 403 for receiving an uplink signal from the terminal, and a second port 404 for transmitting the signal output by the amplifier to the base station. The first port is a wireless communication port. The second port is a wireless or wired communication port.
The repeater can adjust the working mode according to the power condition of the uplink signal, so that the power amplification gain meets the receiving requirement of the base station on the current uplink signal, and simultaneously, the interference caused by blind gain on signals output by other repeaters is avoided, thereby reducing the interference between the repeaters, reducing the total uplink interference received by the base station and improving the communication quality.
In some embodiments, the initial mode of operation of the amplifier is a first mode of operation. The repeater can use the application that the terminal only bears the medium and low speed requirements as a default scene, thereby avoiding the influence on uplink signals of other terminals while ensuring certain service bearing capacity and ensuring the communication quality of the system.
Schematic diagrams of other embodiments of repeaters of the present disclosure are shown in FIG. 5.
The repeater is an uplink and downlink duplex device, and uplink and downlink duplex is realized through the cooperation of the duplexer. The amplifiers are provided on both the downstream and upstream channels.
The uplink and downlink duplex ports of the first duplexer 503 are connected to the first port, the input port is connected to the output port of the amplifier of the downlink channel, and the output port is connected to the input port of the amplifier of the uplink channel.
The uplink and downlink duplex ports of the second duplexer 504 are connected to the second port, the input port is connected to the output port of the amplifier of the uplink channel, and the output port is connected to the input port of the amplifier of the downlink channel.
The first port 403 of the repeater is connected to the first duplexer, and at the uplink signal output end of the first duplexer, the repeater control device 501 detects the signal power. In some embodiments, an amplifier is further included between the repeater control device 501 and the detection point, and the signal at the detection point can be amplified by the amplifier before being detected, so that the detection accuracy is improved.
The repeater can be compatible with the amplification function of the uplink and downlink signals, controls the amplification gain of the uplink signal, reduces the equipment amount in the network and improves the quality of the uplink signal in the network.
A schematic diagram of some embodiments of the communication system of the present disclosure is shown in fig. 6.
The communication system comprises one or more base stations 62 and a plurality of repeaters 611-61 n, wherein n is an integer larger than 1. The repeaters 611 to 61n are any one of the above mentioned, and can receive the uplink signal from the terminal 63, amplify the uplink signal and send the amplified uplink signal to the base station 62.
In the communication system, each repeater can avoid interference caused by blind gain to signals output by other repeaters while the power amplification gain meets the requirement of the base station on the current uplink signal reception, thereby reducing the interference caused by the repeaters, reducing the uplink total interference received by the base station and improving the communication quality.
Finally, it should be noted that: the above examples are intended only to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the disclosure or equivalent substitutions for parts of the technical features may still be made; all such modifications are intended to be included within the scope of the claims of this disclosure without departing from the spirit thereof.
Claims (10)
1. A repeater control device, comprising:
a power detector configured to detect power of an uplink signal from a terminal;
the comparator is connected with the power detector and is configured to compare the power of the uplink signal with a preset power threshold and output a corresponding amplifier working mode switching signal according to the comparison result; and
a timer connected with the comparator and configured to
Starting timing when the amplifier working mode switching signal is received, and stopping timing and resetting when the corresponding amplifier working mode switching signal is stopped being received;
and outputting a switching signal of the working mode to the amplifier so as to adjust the gain of the amplifier under the condition that the timing duration is greater than the preset duration.
2. The apparatus of claim 1,
the comparator is configured to output a first signal for switching the operating mode of the amplifier if the power of the uplink signal is greater than a predetermined power threshold.
3. The apparatus of claim 2,
the comparator is configured to output an amplifier operation mode switching second signal if the power of the uplink signal is less than a predetermined power threshold.
4. The apparatus of claim 2, wherein the timer comprises:
a first timer configured to start timing when the amplifier operation mode switching first signal is received, stop timing when the amplifier operation mode switching first signal is stopped, and reset;
under the condition that the timing duration is longer than the preset duration, outputting a first switching signal to an amplifier so that the amplifier is switched from a first working mode to a second working mode;
wherein the gain of the second operating mode is greater than the first operating mode.
5. The apparatus of claim 3, wherein the timer comprises:
a second timer configured to start timing when the amplifier operation mode switching second signal is received, stop timing when the amplifier operation mode switching second signal is stopped, and reset;
under the condition that the timing duration is longer than the preset duration, outputting a second switching signal to the amplifier so that the amplifier is switched from the second working mode to the first working mode;
wherein the gain of the second operating mode is greater than the first operating mode.
6. A repeater, comprising:
the repeater control device of any of claims 1 to 5; and
the amplifier is configured to amplify the uplink signal from the terminal and output the amplified uplink signal to the base station; and switching working modes according to a switching signal output by the repeater control equipment, wherein the working modes comprise a first working mode and a second working mode, and the gain of the second working mode is greater than that of the first working mode.
7. The repeater according to claim 6, wherein the initial operating mode of the amplifier is the first operating mode.
8. The repeater according to claim 6, further comprising:
a first port configured to receive an upstream signal from a terminal; and
a second port configured to transmit a signal output by the amplifier to a base station.
9. The repeater according to claim 8, further comprising:
the uplink and downlink duplex ports of the first duplexer are connected with the first port, the input port of the first duplexer is connected with the output port of the amplifier of the downlink channel, and the output port of the first duplexer is connected with the input port of the amplifier of the uplink channel; and
the uplink and downlink duplex ports of the second duplexer are connected with the second port, the input port of the second duplexer is connected with the output port of the amplifier of the uplink channel, and the output port of the second duplexer is connected with the input port of the amplifier of the downlink channel;
the repeater control equipment is connected with any point between the output port of the first duplexer and the input port of the amplifier of the uplink channel, and controls the working mode of the amplifier of the uplink channel.
10. A communication system, comprising:
the repeater of any one of claims 6 to 9, wherein the number of repeaters is greater than 1; and
and the base station is configured to receive the uplink signal from the repeater.
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| CN202120597115.9U CN214799482U (en) | 2021-03-24 | 2021-03-24 | Repeater control equipment, repeater and communication system |
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| CN202120597115.9U CN214799482U (en) | 2021-03-24 | 2021-03-24 | Repeater control equipment, repeater and communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189746A (en) * | 2022-09-14 | 2022-10-14 | 佛山市林创科技有限公司 | Mobile phone signal amplifier and amplification method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189746A (en) * | 2022-09-14 | 2022-10-14 | 佛山市林创科技有限公司 | Mobile phone signal amplifier and amplification method |
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