CN203368478U - Adaptive digital repeater - Google Patents
Adaptive digital repeater Download PDFInfo
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- CN203368478U CN203368478U CN 201320328270 CN201320328270U CN203368478U CN 203368478 U CN203368478 U CN 203368478U CN 201320328270 CN201320328270 CN 201320328270 CN 201320328270 U CN201320328270 U CN 201320328270U CN 203368478 U CN203368478 U CN 203368478U
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Abstract
The utility model discloses an adaptive digital repeater which comprises a duplex unit, a digital signal processing unit, a control unit and a power amplification unit, wherein the control unit is connected with the duplex unit through the power amplification unit, the duplex unit is connected with the digital signal processing unit, and the control unit is connected with the digital signal processing unit. The duplex unit comprises two duplexers, an input detection module and an output detection module, wherein receiving ends of the two duplexers are respectively connected with two input ends of the input detection module, transmitting ends of the two duplexers are respectively connected with two output ends of the output detection module, the output end of the input detection module is connected with the input end of the digital signal processing unit, and the input end of the output detection module is connected with the output end of the power amplification unit. The digital signal processing unit comprises a receiving amplification module, more than one signal processing module, a control module, a power supply module and a transmitting amplification module.
Description
Technical field
The utility model relates to Wireless Telecom Equipment, relates in particular to a kind of digital high-frequency amplification station.
Background technology
Repeater belongs to a kind of of repeater (REPEATER), is the connection device above networked physics layer.Be applicable to the interconnection of identical two class networks, major function is by resending or forwarding data-signal, enlarging the distance of Internet Transmission, is the network equipment OSI(Open System Interconnect open system interconnection that signal is regenerated and reduced) physical layer equipment of model.Traditional simulation repeater is directly the external world to be received to the signal come to carry out the analog signal amplification, keep away the outer signals in unavoidable band, the signal of retransmitting such as base station or self etc., severe jamming through inband signalings such as superrefraction, reflections, so that the phenomenons such as straight-forward station self-excitation, call drop, severe patient causes the paralysis of whole base station.Digitized filtered is to eliminate a kind of important means of interference, self-excitation.At present, ICS(Interference cancellation system interference cancelling system) repeater adopts digital digitized filtered signal processing technology, can survey and offset the interference signal of the signal feedback received by wireless space, to such an extent as to effectively eliminate self-excitation and interference.During single carrier, cancellation level can reach the 18dB left and right, but carrier wave is more, and neutralization effect is poorer.
Summary of the invention
For the shortcoming of prior art, the purpose of this utility model is to provide a kind of adaptive digital repeater, has solved the poor problem of neutralization effect in the multicarrier situation.
To achieve these goals, the technical solution of the utility model is: a kind of adaptive digital repeater, comprise duplexing unit, digital signal processing unit, control unit, power amplification unit, control unit is connected with duplexing unit by power amplification unit, the duplex unit is connected with digital signal processing unit, control unit is connected with digital signal processing unit, described duplexing unit comprises two duplexers, input detection module and output detections module, two duplexers receive respectively from the signal of down link and the signal of up link, the receiving terminal of two duplexers is connected with two inputs of input detection module respectively, the transmitting terminal of two duplexers is connected with two outputs of output detections module respectively, the output of input detection module is connected with the input of digital signal processing unit, the input of output detections unit is connected with the output of power amplification unit, described digital signal processing unit comprises reception amplification module, more than one signal processing module, control module, supply module and transmission amplification module, the input that receives amplification module is connected with the output of described input detection module, the input that receives amplification module is connected to signal processing module, signal processing module is connected with the transmission amplification module, send amplification module and be connected with power amplification unit, supply module is connected with signal processing module, control module respectively.
Preferably, described power amplification unit, comprise ascending power amplification module and descending power amplification module, and two input is connected with two outputs of the transmission amplification module of digital signal processing unit respectively.
Preferably also comprise a wind-cooling heat dissipating unit be connected with described control unit.
Preferably, described control unit is connected with the control module of digital signal processing unit, and control module mails to Surveillance center by local mouthful or long-range mouthful by the monitor message of equipment.
Compared with prior art, the present invention is by adopting noise cancellation and adopting the channel one to one digitlization processing processing of processing mode of many signal processing modules to analog radio-frequency signal, can comprise that to the different channels bandwidth Out-of-band rejection etc. is arranged control flexibly, significantly configuration flexibility and the interference free performance of lifting means, realized multicarrier and do not affected neutralization effect.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is composition schematic diagram of the present utility model.
Embodiment
Refer to Fig. 1, the adaptive digital repeater of the present embodiment comprises duplexing unit, DSP(Digital Signal Processing, Digital Signal Processing) unit, MCU(Microprocessor Unit microprocessor unit) control unit, power amplification unit, AC-DC(Alternating Current-Direct Current AC-DC) power conversion unit, PSU(Power Supply Unit, power subsystem) power supply unit, wind-cooling heat dissipating unit.
The duplex unit comprises two duplexers, input detection module and output detections module, two duplexers are processed respectively the base station from BS(Base Station) downstream signal and MS (Mobile Station mobile radio station) the end upward signal of end, the signal of two links is realized to duplexing mode of operation; The receiving terminal of two duplexers is connected with two inputs of input detection module respectively, and the input detection module detects respectively the input signal strength of two links of uplink and downlink; The transmitting terminal of two duplexers is connected with two outputs of output detections module respectively, and the output detections module detects respectively the output signal strength of two links of uplink and downlink; Input detection module and output detections module mail to the DSP unit by the input detected, the signal strength signal intensity of output respectively; The output of input detection module is connected with the input of DSP unit, and the input of output detections unit is connected with the output of power amplification unit.
The DSP unit comprises the reception amplification module, three DSP modules, the DSP control module, the DSP supply module, sending amplification module. the input that receives amplification module is connected with the output of input detection module, respectively upward signal and the downstream signal received amplified, mixing becomes signal into the intermediate frequency that frequency is lower, be connected to the DSP module, the DSP module is carried out digitlization to intermediate-freuqncy signal, frequency-selective filtering, the signal strength signal intensity of simultaneously sending according to input detection unit and output detections unit, automatically complete the counteracting of interference signal by algorithm, then the intermediate frequency of digitized filtered is sent into to the transmission amplification module, send amplification module and respectively the uplink and downlink digital intermediate frequency is carried out to mixing, make it to be reduced into respectively the uplink and downlink radiofrequency signal, then amplify and export the downstream signal that power amplification unit .DSP module is only processed single-channel upward signal and answered in contrast to.For multi channel demand, need the reasonable quantity of DSP module be increased, without proposition new demand or the change to software, plug and play, convenient and swift; Preferably, this example has been realized the DSP of three channels is processed, DSP control module inside includes local monitor mouth and remote monitoring mouth, by local or long-rangely can carry out like a cork setting or the inquiry of parameter to the DSP module. the power supply that described DSP supply module is supplied with outside carries out transformation, offer DSP module and the suitable operating voltage of DSP control module, also avoided a plurality of unit to use the signal that same power supply is introduced to disturb, guaranteed the stability of system simultaneously.
Power amplification unit, comprise ascending power amplification module and descending power amplification module, two input is connected with two outputs that send amplification module respectively, uplink and downlink signal after variable-frequency filtering is carried out to power amplification, cover required power so that reach, then launch by the transmitting terminal of duplexing unit.
The wind-cooling heat dissipating unit carries out wind-cooling heat dissipating from bottom to up to modules such as DSP.Also be subject to the control of MCU Main Processing Unit, when detection, to obtain temperature value higher than threshold value simultaneously, and control the wind-cooling heat dissipating unit and carry out work, otherwise, do not work.
The AC-DC power conversion unit becomes DC+48V by outside alternating current AC220 pressure swing reforming, input voltage is provided wherein to respectively wind-cooling heat dissipating unit and PSU Power supply unit.
The PSU power supply unit is the stabilized voltage power supply of a DC-DC, DC+48V is changed into+27V and+9V gives respectively corresponding module for power supply, simultaneously to the Hot Spare switching of power supply.
The MCU control unit is monitored in real time to the operating state of all modules of whole equipment, and job information is mail to the DSP control module, and the DSP control module mails to Surveillance center by local mouthful or long-range mouthful by the monitor message of equipment.
Claims (4)
1. an adaptive digital repeater, comprise duplexing unit, digital signal processing unit, control unit, power amplification unit, control unit is connected with duplexing unit by power amplification unit, the duplex unit is connected with digital signal processing unit, control unit is connected with digital signal processing unit, it is characterized in that: described duplexing unit comprises two duplexers, input detection module and output detections module, two duplexers receive respectively from the signal of down link and the signal of up link, the receiving terminal of two duplexers is connected with two inputs of input detection module respectively, the transmitting terminal of two duplexers is connected with two outputs of output detections module respectively, the output of input detection module is connected with the input of digital signal processing unit, the input of output detections unit is connected with the output of power amplification unit, described digital signal processing unit comprises reception amplification module, more than one signal processing module, control module, supply module and transmission amplification module, the input that receives amplification module is connected with the output of described input detection module, the input that receives amplification module is connected to signal processing module, signal processing module is connected with the transmission amplification module, send amplification module and be connected with power amplification unit, supply module is connected with signal processing module, control module respectively.
2. adaptive digital according to claim 1 repeater, it is characterized in that: described power amplification unit, comprise ascending power amplification module and descending power amplification module, two input is connected with two outputs of the transmission amplification module of digital signal processing unit respectively.
3. adaptive digital according to claim 1 repeater, is characterized in that: also comprise a wind-cooling heat dissipating unit be connected with described control unit.
4. adaptive digital according to claim 1 repeater, it is characterized in that: described control unit is connected with the control module of digital signal processing unit, and control module mails to Surveillance center by local mouthful or long-range mouthful by the monitor message of equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320328270 CN203368478U (en) | 2013-06-07 | 2013-06-07 | Adaptive digital repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320328270 CN203368478U (en) | 2013-06-07 | 2013-06-07 | Adaptive digital repeater |
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| Publication Number | Publication Date |
|---|---|
| CN203368478U true CN203368478U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320328270 Expired - Fee Related CN203368478U (en) | 2013-06-07 | 2013-06-07 | Adaptive digital repeater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154128A1 (en) * | 2018-02-12 | 2019-08-15 | 维沃移动通信有限公司 | Uplink carrier aggregation device and mobile terminal |
-
2013
- 2013-06-07 CN CN 201320328270 patent/CN203368478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154128A1 (en) * | 2018-02-12 | 2019-08-15 | 维沃移动通信有限公司 | Uplink carrier aggregation device and mobile terminal |
| US11223382B2 (en) | 2018-02-12 | 2022-01-11 | Vivo Mobile Communication Co., Ltd. | Uplink carrier aggregation device and mobile terminal |
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Effective date of registration: 20191125 Granted publication date: 20131225 |
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Date of cancellation: 20221125 Granted publication date: 20131225 |
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Granted publication date: 20131225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |