CN105471490A - Repeater and signal processing method thereof - Google Patents
Repeater and signal processing method thereof Download PDFInfo
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- CN105471490A CN105471490A CN201410453761.2A CN201410453761A CN105471490A CN 105471490 A CN105471490 A CN 105471490A CN 201410453761 A CN201410453761 A CN 201410453761A CN 105471490 A CN105471490 A CN 105471490A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a repeater and a signal processing method thereof, and aims at reducing weight of the repeater, reducing the volume of the repeater and reducing power consumption of the repeater. The repeater comprises a back transmission antenna, an access antenna, a first link unit, a second link unit and a baseband integrated circuit. The first link unit comprises a first radio frequency front-end module and a first radio frequency integrated circuit. The back transmission antenna, the first radio frequency front-end module, the first radio frequency integrated circuit and the baseband integrated circuit are connected in turn via a signal link, and the baseband integrated circuit is also connected with the first radio frequency front-end module and the first radio frequency integrated circuit respectively via a control link. The second link unit comprises a second radio frequency front-end module and a second radio frequency integrated circuit. The access antenna, the second radio frequency front-end module, the second radio frequency integrated circuit and the baseband integrated circuit are connected in turn via the signal link, and the baseband integrated circuit is also connected with the second radio frequency front-end module and the second radio frequency integrated circuit respectively via the control link.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of repeater and signal processing method thereof.
Background technology
Along with the development of mobile communication technology, the mobile communication subscriber rapidly increased brings larger challenge to mobile communications network capacity.On the other hand, be limited by the constraint of the environmental issues such as base station radiation, make the construction of mobile communication base station more and more difficult, the seamless continuous covering relying on base station equipment to carry out mobile communications network also becomes more and more difficult.
Under this background, repeater becomes one of technical way solved the problem.Repeater is positioned over and is positioned at base station coverage fringe region, and it can extend the coverage of base station, increases network capacity.As shown in Figure 1, for the basic system schematic diagram of repeater, comprise two cover receiving-transmitting chains, a set of is up link, and a set of is down link, wherein, up link is used for the wireless signal that receiving terminal is launched, send to base station after amplifying after filtering, down link, for receiving the wireless signal of Base Transmitter, sends to terminal after filter and amplification.Concrete, each link comprises following device: passback antenna, access antenna, (wherein Switch or Duplexer selects one according to duplex mode for switch (Switch) or duplexer (Duplexer), Switch is selected in tdd systems, Duplexer is selected) in frequency division duplex system, low noise amplifier (LAN, lownoiseamplifier), RF Amplifier Module (GAIN), band pass filter (BPF, band-passfilter), frequency mixer (Mixer), analog to digital converter (ADC, AnalogtoDigitalConverter), PLC technology unit (FPGA, and digital to analog converter (DAC Field-ProgrammableGateArray), and power amplifier (PA DigitaltoAnalogConverter), PowerAmplifier).Wherein, for down link, the link be connected with passback antenna is called receiver (link namely between Switch/Duplex and FPGA), and the link be connected with access antenna is called transmitting chain (link namely between FPGA and Switch/Duplex); For up link, the link be connected with access antenna is called receiver (link namely between Switch/Duplex and FPGA), and the link be connected with passback antenna is called transmitting chain (link namely between FPGA and Switch/Duplex).
The function introduction of each device is as follows:
Passback antenna: for and base station communication, receive base station radio signal to repeater, launch repeater wireless signal to base station;
Access antenna: for and terminal communication, receiving terminal wireless signal, to repeater, launches repeater wireless signal to terminal;
Switch/duplexer: the up-downgoing for wireless signal is selected is switch in TDD (time division duplex) system, is duplexer in FDD (Frequency Division Duplexing (FDD)) system;
Front end frequency-selecting filter: be arranged at receiver front end, carries out He Ne laser to signal, exists in FDD system, is arranged in duplexer;
RF Amplifier Module: for amplifying wireless signal;
Low noise amplifier: the front end being arranged at receiver, does low noise amplification to the wireless signal received;
Power amplifier: the end being arranged at transmitting chain, carries out power amplification to wireless signal;
Band pass filter: all have employing, for filter out-band external signal in reception, transmitting chain;
Frequency mixer: radiofrequency signal, to signal down-conversion, is downconverted to intermediate frequency by receiver; Transmitting chain to signal up-conversion, by intermediate-freuqncy signal up-conversion to radio frequency;
Digital to analog converter: for digital signal is converted to analog signal;
Analog to digital converter: for analog signal is converted to digital signal;
FPGA: for carrying out the process such as digital filtering, amplitude adjustment to digital signal;
Synchronization module: be used as the synchronous of uplink and downlink timeslot during TDD standard, exist in TDD system, be arranged in FPGA;
Power management module: the power supply, voltage transformation etc. of being responsible for whole system.
Based on the repeater structure shown in Fig. 1, its downstream signal handling process is as follows: the downstream signal from base station enters Switch/Duplexer through passback antenna, then wireless signal enters FPGA successively after the device process such as LNA, Gain, BPF, Mixer, ADC, wireless signal after FPGA process is after DAC digital to analog conversion, again after the device process such as Mixer, BPF, Gain, launch covering terminal finally by PA and Switch/Duplexer, incoming end antenna etc.Upward signal handling process is as follows: the wireless signal carrying out self terminal enters Switch/filter through incoming end antenna, then FPGA is entered through devices such as LNA, Gain, BPF, Mixer and ADC, signal after FPGA process is through DAC digital to analog conversion, again through BPF, Mixer, Gain etc. after device process, be emitted to base station finally by PA and Switch/Duplexer, passback end antenna etc.
As can be seen here, repeater of the prior art, needs to use multiple radio frequency chip and device, causes the heavier-weight of repeater, and volume is comparatively large, and due to device numerous, make existing repeater power consumption higher.
Summary of the invention
The embodiment of the present invention provides a kind of repeater and signal processing method thereof, in order to alleviate the weight of repeater, reduces repeater volume, and reduces its power consumption.
The embodiment of the present invention provides a kind of repeater, comprises passback antenna, access antenna, the first linking element, the second linking element and based band integrated circuit, wherein:
Described first linking element, for processing the wireless signal of downlink reception link and up transmitting chain, comprise the first RF front-end module and the first radio frequency integrated circuit, described passback antenna, the first RF front-end module, the first radio frequency integrated circuit are connected by signal link successively with described based band integrated circuit, and described based band integrated circuit is also connected with the first RF front-end module and described first radio frequency integrated circuit respectively by control link;
Described second linking element, for processing the wireless signal of downlink link and uplink receiving link, comprise the second RF front-end module and the second radio frequency integrated circuit, described access antenna, the second RF front-end module, the second radio frequency integrated circuit are connected by signal link successively with described based band integrated circuit, and described based band integrated circuit is also connected with the second RF front-end module and described second radio frequency integrated circuit respectively by control link;
Described based band integrated circuit, after processing the wireless signal received by signal link, exports described first radio frequency integrated circuit or the second radio frequency integrated circuit to; And for being controlled described first radio frequency integrated circuit, the second radio frequency integrated circuit, the first front-end module, the working frequency range of the second front-end module, gain, transmitting power, on off state by control link.
The embodiment of the present invention provides a kind of downlink signal processing method based on above-mentioned repeater, comprising:
Described first RF front-end module sends to described first radio-frequency integrated circuit module after the downlink radio-frequency signal that described passback antenna receives is carried out low noise amplification and frequency-selecting;
After described first radio-frequency integrated circuit module carries out filtering, amplification process to the downlink radio-frequency signal received, downlink radio-frequency signal after process is carried out the descending analog intermediate frequency signal that down-conversion obtains, and described descending analog intermediate frequency signal to be carried out analog-to-digital conversion be send to described based band integrated circuit after downstream digital signal;
Described based band integrated circuit sends to described second radio frequency integrated circuit after carrying out baseband filtering and Gain tuning to described downstream digital signal;
It is descending analog intermediate frequency signal that the downstream digital signal received is carried out digital-to-analogue conversion by described second radio frequency integrated circuit, the descending analog intermediate frequency signal obtained is carried out up-conversion and obtains downlink radio-frequency signal, filtering is carried out to the downlink radio-frequency signal obtained and amplifies process, the downlink radio-frequency signal after process is sent to the second RF front-end module;
Send through access antenna after described second RF front-end module carries out power amplification and filtering to the downlink radio-frequency signal received.
The embodiment of the present invention provides a kind of upward signal processing method based on above-mentioned repeater, comprising:
Described second RF front-end module sends to described second radio-frequency integrated circuit module after the upstream radio-frequency signal that described access antenna receives is carried out low noise amplification and frequency-selecting;
Described second radio-frequency integrated circuit module carries out filtering to the upstream radio-frequency signal received, amplifies process, upstream radio-frequency signal after process is carried out the up analog intermediate frequency signal that down-conversion obtains, and described up analog intermediate frequency signal to be carried out analog-to-digital conversion be send to described based band integrated circuit after digital uplink signal;
Described based band integrated circuit carries out baseband filtering and Gain tuning to described digital uplink signal, sends to described first radio frequency integrated circuit;
It is up analog intermediate frequency signal that the digital uplink signal received is carried out digital-to-analogue conversion by described first radio frequency integrated circuit, the up analog intermediate frequency signal obtained is carried out up-conversion and obtains upstream radio-frequency signal, filtering is carried out to the upstream radio-frequency signal obtained and amplifies process, the upstream radio-frequency signal after process is sent to the first RF front-end module;
Send through passback antenna after described first RF front-end module carries out power amplification and filtering to the upstream radio-frequency signal received.
The repeater that the embodiment of the present invention provides and signal processing method thereof, the function of downlink reception link and up transmission link is achieved by the first linking element, the function of downlink link and uplink receiving link is achieved by the second link, and realize controlling functions by based band integrated circuit, owing to being realized by the RF front-end module of Highgrade integration and radio frequency integrated circuit two modules in the first linking element and the second linking element, compared to prior art, greatly reduce the module/number of devices comprised in repeater, thus alleviate repeater weight, reduce repeater volume, and reduce its power consumption.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is in prior art, the structural representation of repeater;
Fig. 2 is in the embodiment of the present invention, the structural representation of repeater;
Fig. 3 is in the embodiment of the present invention, downstream signal handling process schematic diagram;
Fig. 4 is in the embodiment of the present invention, upward signal handling process schematic diagram.
Embodiment
In order to alleviate repeater weight, reducing repeater volume and reducing its power consumption, embodiments providing a kind of repeater.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
In the embodiment of the present invention, utilize the function of the PA of front radio-frequency module (FEM, FrontEndModule) integrated switch/duplexer, low noise amplifier, front end frequency-selecting filter, transmitting chain.During concrete enforcement, according to the difference of duplex mode, in a tdd system, front radio-frequency module can the function of PA of integrated switch, low noise amplifier and transmitting chain, in FDD system, front radio-frequency module can the function of PA of integrated duplexer (Duplexer), front end frequency-selecting filter, low noise amplifier and transmitting chain.Utilize radio frequency integrated circuit (RFIC, RadioFrequencyIntegratedCircuit) integrated RF amplification module, band pass filter, the function of frequency mixer and analog to digital converter and digital to analog converter, utilize based band integrated circuit (BBIC, BaseBandIntegratedCircuit) function of integrated FPGA and synchronization module (when being applied to TDD system), by Power Management Unit (PMIC, PowerManagementIntegratedCircuit) power management to repeater is realized, the modules comprised for repeater is powered, and responsible voltage transitions etc.
As shown in Figure 2, be the structural representation of the repeater that the embodiment of the present invention provides, comprise passback antenna 11, access antenna 12, first linking element 13, second linking element 14 and based band integrated circuit 15, wherein:
First linking element 13, for processing the wireless signal of downlink reception link and up transmitting chain, comprise the first RF front-end module 131 and the first radio frequency integrated circuit 132, passback antenna 11, first RF front-end module 131, first radio frequency integrated circuit 132 is connected by signal link successively with based band integrated circuit 15, and based band integrated circuit 15 is also connected with the first RF front-end module 131 and described first radio frequency integrated circuit 132 respectively by control link.Wherein, the first RF front-end module, may be used for carrying out the process such as low noise amplification and frequency-selecting to the wireless signal of receiver; And power amplification and filtering process are carried out to the wireless signal of transmitting chain; First radio frequency integrated circuit, may be used for carrying out the process such as filtering, amplification, down-conversion and analog-to-digital conversion to the wireless signal of receiver; And the process such as analog-to-digital conversion, up-conversion, filtering and amplification are carried out to the wireless signal of transmitting chain; Based band integrated circuit, the wireless signal that may be used for the first radio frequency integrated circuit sends carries out the process such as baseband filtering and Gain tuning.
Second linking element 14, for processing the wireless signal of downlink link and uplink receiving link, comprise the second RF front-end module 141 and the second radio frequency integrated circuit 142, access antenna 12, second RF front-end module 141, second radio frequency integrated circuit 142 is connected by signal link successively with based band integrated circuit 15, and based band integrated circuit 15 is also connected with the second RF front-end module 141 and the second radio frequency integrated circuit 142 respectively by control link.Wherein, the second RF front-end module, may be used for carrying out the process such as low noise amplification and frequency-selecting to the wireless signal of receiver; And power amplification and filtering process are carried out to the wireless signal of transmitting chain; Second radio frequency integrated circuit, may be used for carrying out the process such as filtering, amplification, down-conversion and analog-to-digital conversion to the wireless signal of receiver; And the process such as analog-to-digital conversion, up-conversion, filtering and amplification are carried out to the wireless signal of transmitting chain; Based band integrated circuit, the wireless signal that may be used for the second radio frequency integrated circuit sends carries out the process such as baseband filtering and Gain tuning.
Based band integrated circuit 15, after processing the wireless signal received by signal link, exports the first radio frequency integrated circuit 132 or the second radio frequency integrated circuit 142 to; And for being controlled the working frequency range, gain, transmitting power, on off state etc. of the first radio frequency integrated circuit 132, second radio frequency integrated circuit 142, first RF front-end module 131, second RF front-end module 141 by control link.
During concrete enforcement, when repeater is applied in FDD system, up link and down link are opened all the time, upward signal and downstream signal use different frequency transmission, therefore, can integrated filter wireless signal being carried out to frequency-selecting in the first/the second front radio-frequency module, determine that the wireless signal received needs in uplink processing still in down link process according to its frequency selected.Namely, in FDD system, the first/the second RF front-end module can also be used for carrying out frequency-selecting to wireless signal.
When repeater is applied in TDD system, the function of all right integrated demodulation synchronization signal of based band integrated circuit, based band integrated circuit controls the first/the second RF front-end module, the first/the second radio frequency integrated circuit On/Off up link or On/Off down link according to the synchronizing signal demodulated.
The repeater that the embodiment of the present invention provides also comprises power management module 16, it is connected by electric control link source with the first RF front-end module 131, first radio frequency integrated circuit 132, second RF front-end module 141, second radio frequency integrated circuit 142 and based band integrated circuit 15 respectively, for carrying out power management to repeater, as power supply and voltage transitions etc. to each module.
Due in the repeater that the embodiment of the present invention provides, utilize RF front-end module integrated switch/duplexer, low noise amplifier, front end frequency-selecting filter, the function of the PA of transmitting chain, utilize radio frequency integrated circuit integrated RF amplification module, band pass filter, the function of frequency mixer and analog to digital converter and digital to analog converter, utilize the function of based band integrated circuit integrating control and synchronization module (when being applied to TDD system), by Power Management Unit, power management is carried out to repeater simultaneously, module/the number of devices comprised due to it greatly reduces, thus alleviate the weight of repeater, reduce repeater volume, and the power consumption of repeater can be reduced.
Based on same inventive concept, a kind of upward signal processing method and downlink signal processing method is also each provided in the embodiment of the present invention, the principle of dealing with problems due to above-mentioned signal processing method is similar to above-mentioned repeater, therefore the enforcement of above-mentioned signal processing method see the enforcement of method, can repeat part and repeats no more.
The repeater that the embodiment of the present invention provides, if be applied in TDD system, the base station signal that based band integrated circuit receives according to passback antenna side obtains synchronizing signal, according to the synchronizing signal obtained, based band integrated circuit controls direct end uplink link On/Off or down link On/Off, and synchronization can only open a link, when up link is opened, close down link, when down link is opened, close up link.
Concrete, can process according to the flow process shown in Fig. 3 for downstream signal, can process according to the flow process shown in Fig. 4 for upward signal.
As shown in Figure 3, be the implementing procedure schematic diagram of the downlink signal processing method that the embodiment of the present invention provides, comprise the following steps:
S31, the first RF front-end module send to the first radio-frequency integrated circuit module after the downlink radio-frequency signal that passback antenna receives is carried out low noise amplification and frequency-selecting.
S32, the first radio-frequency integrated circuit module carry out filtering to the downlink radio-frequency signal received, amplify process, downlink radio-frequency signal after process is carried out the descending analog intermediate frequency signal that down-conversion obtains, and described descending analog intermediate frequency signal to be carried out analog-to-digital conversion be that downstream digital signal sends to based band integrated circuit.
S33, based band integrated circuit send to the second radio frequency integrated circuit after carrying out baseband filtering and Gain tuning to downstream digital signal.
It is descending analog intermediate frequency signal that the downstream digital signal received is carried out digital-to-analogue conversion by S34, the second radio frequency integrated circuit, the descending analog intermediate frequency signal obtained is carried out up-conversion and obtains downlink radio-frequency signal, filtering is carried out to the downlink radio-frequency signal obtained and amplifies process, the downlink radio-frequency signal after process is sent to the second RF front-end module.
Send through access antenna after S35, the second RF front-end module carry out power amplification and filtering to the downlink radio-frequency signal received.
As shown in Figure 4, be the implementing procedure schematic diagram of the downlink signal processing method that the embodiment of the present invention provides, comprise the following steps:
S41, the second RF front-end module send to the second radio-frequency integrated circuit module after the upstream radio-frequency signal that access antenna receives is carried out low noise amplification and frequency-selecting.
S42, the second radio-frequency integrated circuit module carry out filtering to the upstream radio-frequency signal received, amplify process, upstream radio-frequency signal after process is carried out the up analog intermediate frequency signal that down-conversion obtains, and up analog intermediate frequency signal to be carried out analog-to-digital conversion be send to described based band integrated circuit after digital uplink signal.
S43, based band integrated circuit send to the first radio frequency integrated circuit after carrying out baseband filtering and Gain tuning to digital uplink signal.
It is up analog intermediate frequency signal that the digital uplink signal received is carried out digital-to-analogue conversion by S44, the first radio frequency integrated circuit, the up analog intermediate frequency signal obtained is carried out up-conversion and obtains upstream radio-frequency signal, filtering is carried out to the upstream radio-frequency signal obtained and amplifies process, the upstream radio-frequency signal after process is sent to the first RF front-end module.
Send through passback antenna after S45, the first RF front-end module carry out power amplification and filtering to the upstream radio-frequency signal received.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a repeater, is characterized in that, comprising: passback antenna, access antenna, the first linking element, the second linking element and based band integrated circuit, wherein:
Described first linking element, for processing the wireless signal of downlink reception link and up transmitting chain, comprise the first RF front-end module and the first radio frequency integrated circuit, described passback antenna, the first RF front-end module, the first radio frequency integrated circuit are connected by signal link successively with described based band integrated circuit, and described based band integrated circuit is also connected with the first RF front-end module and described first radio frequency integrated circuit respectively by control link;
Described second linking element, for processing the wireless signal of downlink link and uplink receiving link, comprise the second RF front-end module and the second radio frequency integrated circuit, described access antenna, the second RF front-end module, the second radio frequency integrated circuit are connected by signal link successively with described based band integrated circuit, and described based band integrated circuit is also connected with the second RF front-end module and described second radio frequency integrated circuit respectively by control link;
Described based band integrated circuit, after processing the wireless signal received by signal link, exports described first radio frequency integrated circuit or the second radio frequency integrated circuit to; And for being controlled described first radio frequency integrated circuit, the second radio frequency integrated circuit, the first front-end module, the working frequency range of the second front-end module, gain, transmitting power, on off state by control link.
2. repeater as claimed in claim 1, is characterized in that,
Described the first/the second RF front-end module, specifically for carrying out low noise amplification and frequency-selecting process to the wireless signal of receiver; And power amplification and filtering process are carried out to the wireless signal of transmitting chain;
Described the first/the second radio frequency integrated circuit, specifically for carrying out filtering, amplification, down-conversion and analog-to-digital conversion process to the wireless signal of receiver; And analog-to-digital conversion, up-conversion, filtering and amplification process are carried out to the wireless signal of transmitting chain;
Described based band integrated circuit, specifically for carrying out baseband filtering and Gain tuning process to wireless signal.
3. repeater as claimed in claim 1, it is characterized in that, if when described repeater is applied in FDD system, described the first/the second RF front-end module also comprises the filter for frequency-selecting work.
4. repeater as claimed in claim 1, it is characterized in that, if when described repeater is applied in TDD system, described based band integrated circuit also for demodulation synchronization signal, and controls described the first/the second radio frequency integrated circuit, the first/the second front-end module On/Off up link or On/Off down link according to the synchronizing signal demodulated.
5. the repeater as described in claim as arbitrary in Claims 1 to 4, is characterized in that, also comprise:
Power Management Unit, is connected by Energy control link with described first RF front-end module, the first radio frequency integrated circuit, the second RF front-end module, the second radio frequency integrated circuit and based band integrated circuit respectively, for carrying out power management to described repeater.
6., based on a downlink signal processing method for the repeater described in the arbitrary claim of Claims 1 to 5, it is characterized in that, comprising:
Described first RF front-end module sends to described first radio-frequency integrated circuit module after the downlink radio-frequency signal that described passback antenna receives is carried out low noise amplification and frequency-selecting;
Described first radio-frequency integrated circuit module carries out filtering to the downlink radio-frequency signal received, amplifies process, downlink radio-frequency signal after process is carried out the descending analog intermediate frequency signal that down-conversion obtains, and described descending analog intermediate frequency signal to be carried out analog-to-digital conversion be that downstream digital signal sends to described based band integrated circuit;
Described based band integrated circuit sends to described second radio frequency integrated circuit after carrying out baseband filtering and Gain tuning to described downstream digital signal;
It is descending analog intermediate frequency signal that the downstream digital signal received is carried out digital-to-analogue conversion by described second radio frequency integrated circuit, the descending analog intermediate frequency signal obtained is carried out up-conversion and obtains downlink radio-frequency signal, filtering is carried out to the downlink radio-frequency signal obtained and amplifies process, the downlink radio-frequency signal after process is sent to the second RF front-end module;
Send through access antenna after described second RF front-end module carries out power amplification and filtering to the downlink radio-frequency signal received.
7. method as claimed in claim 6, is characterized in that, if when described repeater is applied in TDD system, also comprise:
Described based band integrated circuit receives and demodulation synchronization signal; And
Control described the first/the second RF front-end module and the first/the second radio frequency integrated circuit unlatching down link according to described synchronizing signal, and close up link.
8., based on a upward signal processing method for the repeater described in the arbitrary claim of Claims 1 to 5, it is characterized in that, comprising:
Described second RF front-end module sends to described second integrated circuit modules after the upstream radio-frequency signal that described access antenna receives is carried out low noise amplification and frequency-selecting;
Described second integrated circuit modules carries out filtering to the upstream radio-frequency signal received, amplifies process, upstream radio-frequency signal after process is carried out the up analog intermediate frequency signal that down-conversion obtains, and described up analog intermediate frequency signal to be carried out analog-to-digital conversion be send to described based band integrated circuit after digital uplink signal;
After described based band integrated circuit carries out baseband filtering and Gain tuning to described digital uplink signal, send to described first radio frequency integrated circuit;
It is up analog intermediate frequency signal that the digital uplink signal received is carried out digital-to-analogue conversion by described first radio frequency integrated circuit, the up analog intermediate frequency signal obtained is carried out up-conversion and obtains upstream radio-frequency signal, filtering is carried out to the upstream radio-frequency signal obtained and amplifies process, the upstream radio-frequency signal after process is sent to the first RF front-end module;
Send through passback antenna after described first RF front-end module carries out power amplification and filtering to the upstream radio-frequency signal received.
9. method as claimed in claim 8, is characterized in that, if when described repeater is applied in TDD system, also comprise:
Described based band integrated circuit receives and demodulation synchronization signal; And
Control described the first/the second RF front-end module and the first/the second radio frequency integrated circuit unlatching up link according to described synchronizing signal, and close down link.
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| CN107872269A (en) * | 2016-09-27 | 2018-04-03 | 罗森伯格（上海）通信技术有限公司 | Multifrequency digital micro repeater |
| CN108768440A (en) * | 2018-05-31 | 2018-11-06 | 西安蜂语信息科技有限公司 | Signal processing method and device |
| CN111866899A (en) * | 2020-06-28 | 2020-10-30 | 四川省大见通信技术有限公司 | Indoor microdistribution system and method for 5G mobile communication |
| CN112770333A (en) * | 2020-12-11 | 2021-05-07 | 武汉虹信科技发展有限责任公司 | 5G NR wireless distributed frequency shift system and frequency shift method |
| CN113412581A (en) * | 2019-12-31 | 2021-09-17 | 华为技术有限公司 | Signal processing system, signal processing module and terminal equipment |
| WO2021259095A1 (en) * | 2020-06-22 | 2021-12-30 | 华为技术有限公司 | Communication device and method for receiving and transmitting signal thereof, and switching circuit |
| CN114449662A (en) * | 2021-12-31 | 2022-05-06 | 重庆智铸华信科技有限公司 | Frequency conversion processing circuit and access device |
| CN114567361A (en) * | 2022-04-28 | 2022-05-31 | 南京燧锐科技有限公司 | FDD/TDD dual-mode microwave direct amplification relay station |
| CN117729627A (en) * | 2024-02-07 | 2024-03-19 | 广州市瀚云信息技术有限公司 | Method for realizing simultaneous synchronization of 4G signal and 5G signal of wireless repeater |
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| CN117729627A (en) * | 2024-02-07 | 2024-03-19 | 广州市瀚云信息技术有限公司 | Method for realizing simultaneous synchronization of 4G signal and 5G signal of wireless repeater |
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