CN101557247A - TD-SCDMA repeater and method for processing uplink and downlink of signals - Google Patents
TD-SCDMA repeater and method for processing uplink and downlink of signals Download PDFInfo
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- CN101557247A CN101557247A CNA2008101036293A CN200810103629A CN101557247A CN 101557247 A CN101557247 A CN 101557247A CN A2008101036293 A CNA2008101036293 A CN A2008101036293A CN 200810103629 A CN200810103629 A CN 200810103629A CN 101557247 A CN101557247 A CN 101557247A
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Abstract
The invention provides a TD-SCDMA repeater and a method for processing uplink and downlink of signals. Aiming at solving the problem of poor isolation of an uplink path and a downlink path in the prior art, the invention provides the repeater which comprises an uplink power amplifier, a downlink low-noise amplifier, a downlink power amplifier and an uplink low-noise amplifier, wherein the uplink power amplifier and the downlink low-noise amplifier are controlled by a first switch to supply power under the control of a synchronous control module, and when the uplink of signals is switched to the downlink of the signals, the first switch discharges the uplink power amplifier; the downlink power amplifier and the uplink low-noise amplifier are respectively connected with a second switch; and under the control of the synchronous control module, the downlink power amplifier and the uplink low-noise amplifier are controlled by the second switch to supply power when the downlink of the signals is switched to the uplink of the signals, the second switch discharges the downlink power amplifier. The invention has the advantages that the uplink path and the downlink path of the repeater are thoroughly switched with high isolation; and meanwhile, the power supply of the uplink and the downlink can be closed in a time sharing way, thus the system saves electricity and has high efficiency and low heat dissipation.
Description
Technical field
The present invention relates to the communications field, is a kind of TD-SCDMA repeater and method for processing uplink and downlink of signals specifically.
Background technology
Fast development along with China's mobile communication cause, the 2nd present generation or 2.5 third-generation mobile communication systems are at the great demand that all can not satisfy society aspect capacity and the professional ability, and therefore the 2nd generation or 2.5 third-generation mobile communication systems will be replaced by the third generation (3G) mobile communication system.In order on the basis of second generation network, progressively to be evolved into third generation network neatly, 3G has three communication standard: WCDMA, CDMA2000, TD-SCDMA, wherein TD-SCDMA technology is proposed by China and formally became the 3G (Third Generation) Moblie international standard in 2000, and the system that follows this standard development has the very high availability of frequency spectrum and lower cost.
As the key player who is played the part of in second generation mobile communication covers, important effect will be played in the repeater in 3-G (Generation Three mobile communication system).The covering that the traditional base station is difficult to finish covering area is finished in the repeater, has characteristics simple in structure, easy for installation, small investment.Because TD has special physical channel structure, can change the time slot switching point flexibly according to the needs of business, satisfy the requirement of up-downgoing non-symmetrical service, the signal that this different time-gap switches basically can real time altering, can dispose in advance according to different service needed.TD-SCDMA direct discharging station as trunking needs the accurately switching of realization uplink and downlink timeslot, finishes wireless signal and amplifies forwarding capability.
Chinese patent 200610001857.0, a kind of TD-SCDMA direct discharging station that is used for 3-G (Generation Three mobile communication system) is disclosed, downstream signal is converted to baseband signal, with this baseband signal control radio-frequency (RF) switch, power amplifier (PA) and LNA (LNA), and this radio-frequency (RF) switch is when switching the uplink and downlink signal, PA needs bigger capacitor decoupling, after the power supply of turn-offing PA, because the energy storage effect of PA internal capacitor, the time of closing is longer, and the isolation that causes direct end uplink and downstream signal is not very desirable.
In the introducing mode above-mentioned technology contents is incorporated in the application.
Summary of the invention
The object of the present invention is to provide a kind of TD-SCDMA repeater, can effectively solve the not high problem of uplink and downlink signals isolation in the prior art, effectively amplify required base station signal, other irrelevant signal of filtering, avoid area interference and disturb raising speech quality and coverage frequently with adjacent.
Another object of the present invention is to provide a kind of TD-SCDMA repeater downlink signal processing method, make the repeater when handling downstream signal work, can be good at isolating the interference of upward signal downstream signal.
Another object of the present invention is to provide a kind of TD-SCDMA repeater signal up processing method, make the repeater when handling upward signal work, can be good at isolating the interference of downstream signal upward signal.
To achieve these goals, the embodiment of the invention provides a kind of TD-SCDMA the repeater, a kind of TD-SCDMA repeater, this repeater comprises: power supply, synchronization control module, up low noise amplifier, ascending power amplifier, descending low noise amplifier, downlink power amplifier is characterized in that also comprising first switch, second switch;
Described ascending power amplifier is connected with described first switch respectively with descending low noise amplifier, described first switch is controlled the power supply of described ascending power amplifier and descending low noise amplifier under the control of described synchronization control module, and when signal uplink is switched to signal downlink, described ascending power amplifier is discharged; Described downlink power amplifier is connected with described second switch respectively with up low noise amplifier, described second switch is controlled the power supply of described downlink power amplifier and up low noise amplifier under the control of described synchronization control module, and when signal downlink switches to signal uplink, described downlink power amplifier is discharged.
The further aspect of a kind of TD-SCDMA repeater according to the present invention, described ascending power amplifier has high frequency capacitance, described first switch comprises K switch 3, and described K switch 3 is parallel to described high frequency capacitance, when connecting described K switch 3 to described high frequency capacitance discharge.
Another further aspect of a kind of TD-SCDMA repeater according to the present invention, described downlink power amplifier has high frequency capacitance, described second switch comprises K switch 3 ', and described K switch 3 ' is parallel to described high frequency capacitance, when connecting described K switch 3 ' to described high frequency capacitance discharge.
Another further aspect of a kind of TD-SCDMA repeater also comprises storage capacitor according to the present invention, is in parallel with described descending low noise amplifier and described ascending power amplifier; Described first switch also comprises K switch 1 and K switch 2, described K switch 1 is connected between described power supply and the described descending low noise amplifier, is used to connect or disconnect be switched on or switched off being connected of described descending low noise amplifier and described storage capacitor in the time of described descending low noise amplifier power supply; Described K switch 2 is connected between described ascending power amplifier and the described power supply, and described K switch 2 connects or disconnects described power supply and be switched on or switched off being connected of described ascending power amplifier and described storage capacitor in the time of the power supply of described ascending power amplifier.
Another further aspect of a kind of TD-SCDMA repeater also comprises storage capacitor according to the present invention, is in parallel with described descending low noise amplifier and described ascending power amplifier; Described second switch also comprises K switch 1 ' and K switch 2 ', described K switch 1 ' is connected between described power supply and the described up low noise amplifier, is used to connect or disconnect be switched on or switched off being connected of described up low noise amplifier and described storage capacitor in the time of described up low noise amplifier power supply; Described K switch 2 ' is connected between described downlink power amplifier and the described power supply, and described K switch 2 ' connects or disconnects described power supply and be switched on or switched off being connected of described downlink power amplifier and described storage capacitor in the time of the power supply of described downlink power amplifier.
The further aspect of a kind of TD-SCDMA repeater according to the present invention, also comprise first radio frequency circulator and second radio frequency circulator, described first radio frequency circulator is connected with descending low noise amplifier with described ascending power amplifier, is used to separate the uplink and downlink signal; Described second radio frequency circulator is connected with up low noise amplifier with described downlink power amplifier, is used to separate the uplink and downlink signal.
Another further aspect of a kind of TD-SCDMA repeater according to the present invention, described ascending power amplifier, first switch, descending low noise amplifier, first radio frequency circulator all are integrated in the circuit module; Described downlink power amplifier, second switch, up low noise amplifier, second radio frequency circulator all are integrated in another circuit module.
Another further aspect of a kind of TD-SCDMA repeater also comprises a monitoring module according to the present invention, is connected with described synchronization control module, and the parameter generation warning message according to each parts in the described synchronization control module sends to far-end server.
Another further aspect of a kind of TD-SCDMA repeater according to the present invention, described power supply is solar powered module.
The present invention also provides a kind of TD-SCDMA repeater signal downlink processing method, and this method comprises:
Step 203, described synchronization control module disconnects being connected of ascending power amplifier and up low noise amplifier and power supply respectively by switch;
Step 204, described synchronization control module are controlled described switch described ascending power amplifier are discharged;
Step 205 sends described downstream signal to user's mobile communication terminal.
A kind of further aspect of TD-SCDMA repeater signal downlink processing method according to the present invention, describedly disconnect the ascending power amplifier respectively by switch and comprise, disconnect described ascending power amplifier and disconnecting being connected of described ascending power amplifier and storage capacitor when power supply is connected with up low noise amplifier and being connected of power supply.
Another further aspect of a kind of TD-SCDMA repeater signal downlink processing method according to the present invention, describedly disconnect the ascending power amplifier respectively by switch and comprise with up low noise amplifier and being connected of power supply, when disconnecting described ascending power amplifier and storage capacitor is connected, connect the discharge circuit of the high frequency capacitance of described ascending power amplifier, described high frequency capacitance is discharged.
Another further aspect of a kind of TD-SCDMA repeater signal downlink processing method according to the present invention, also comprise a monitoring step, in the repeater signal downlink processing, monitor the running state parameter of each parts in the described repeater in real time, then report to the police to maintenance server when monitor value surpasses threshold value.
The present invention also provides a kind of TD-SCDMA repeater signal up processing method, and this method comprises:
The further aspect of the up processing method of a kind of TD-SCDMA repeater signal according to the present invention, describedly disconnect downlink power amplifier respectively by switch and comprise, disconnect described downlink power amplifier and disconnecting being connected of described downlink power amplifier and storage capacitor when power supply is connected with descending low noise amplifier and being connected of power supply.
Another further aspect of the up processing method of a kind of TD-SCDMA repeater signal according to the present invention, describedly disconnect downlink power amplifier respectively by switch and comprise with descending low noise amplifier and being connected of power supply, when disconnecting described downlink power amplifier and storage capacitor is connected, connect the discharge circuit of the high frequency capacitance of described downlink power amplifier, described high frequency capacitance is discharged.
Another further aspect of the up processing method of a kind of TD-SCDMA repeater signal according to the present invention, also comprise a monitoring step, in the up processing of repeater signal, monitor the running state parameter of each parts in the described repeater in real time, then report to the police to maintenance server when monitor value surpasses threshold value.
The beneficial effect of the embodiment of the invention is, direct end uplink and down going channel switch thoroughly, the isolation height, and simultaneously owing to can close the power supply of uplink and downlink to timesharing, system's power saving, the efficient height, it is low to generate heat.And the volume of repeater is less, and applicability is good.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is a direct discharging station structure chart of the present invention;
Fig. 2 is switch 104 partial circuit structure charts of the present invention;
Fig. 3 is switch 113 partial circuit structure charts of the present invention;
Fig. 4 is a downstream signal process chart of the present invention;
Fig. 5 is a upward signal process chart of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of TD-SCDMA the repeater.The present invention is described in detail below in conjunction with accompanying drawing.
Be illustrated in figure 1 as direct discharging station structure chart of the present invention, comprise descending input port 101 (BTS), filter 102, radio frequency circulator 103, switch 104, descending low noise amplifier 106 (LNA), downlink power amplifier 115 (PA) in downlink portion; Wherein, the radiofrequency signal of sending from the base station receives through forward facing antenna, is connected to repeater BTS port one 01 by cable; Then by after the outer spurious signal filtering of 102 pairs of descending bands of filter; Separate the up-downgoing passage by radio frequency circulator 103; Enter descending low noise amplifier 106, small-signal is amplified; Output signal enters two-way frequency-selector 108, by the outer spurious signal filtering of 108 pairs of descending bands of two-way frequency-selector; Enter the input of downlink power amplifier 115, to downlink radio-frequency signal amplify, the time slot level is controlled automatically, power amplification; Output signal merges the up-downgoing passage through radio frequency circulator 112 again; Be sent to filter 111 subsequently and carry out filtering, make indexs such as spurious emissions and the outer inhibition of band reach best; Pass through output port (MS) 110 at last to user's mobile communication terminal output signal.By synchronization control module downstream signal is carried out synchronous detecting and Synchronization Control therebetween, synchronization control module detects the operating state (connecting line chart does not show) of each module in the repeater in real time, comprises information such as voltage, electric current, power and temperature.
Comprise up input port 110 (MS) in uplink portion, filter 111, radio frequency circulator 112, switch 113, up low noise amplifier 116 (LNA '), ascending power amplifier 107 (PA '); Wherein, the radiofrequency signal of sending from user's mobile communication terminal receives through reception antenna (figure does not show), is connected to repeater MS port one 10 by cable; Then by after the outer spurious signal filtering of 111 pairs of up bands of filter; Separate the up-downgoing passage by radio frequency circulator 112; Enter up low noise amplifier 116, small-signal is amplified; Output signal enters two-way frequency-selector 108, by the outer spurious signal filtering of 108 pairs of up bands of two-way frequency-selector; Enter the input of ascending power amplifier 107, to up radiofrequency signal amplify, the time slot level is controlled automatically, power amplification; Output signal merges the up-downgoing passage through radio frequency circulator 103 again; Be sent to filter 102 subsequently and carry out filtering, make indexs such as spurious emissions and the outer inhibition of band reach best; At last by up output port 101 to the base station output signal.By synchronization control module upward signal is carried out synchronous detecting and Synchronization Control therebetween, synchronization control module detects the operating state (connecting line chart does not show) of each module in the repeater in real time, comprises information such as voltage, electric current, power and temperature.
Wherein, described descending input port and up output port are that same port is the BTS mouth, and described descending output port and up input port are that same port is the MS mouth.
The uplink and downlink of TD-SCDMA are operated in same frequency, realize duplex by timesharing, and the present invention to the low noise amplifier of uplink and downlink, the power supply of power amplifier, realizes the time-sharing work of uplink and downlink by control.Ascending power amplifier, low noise amplifier energising, when downlink power amplifier, low noise amplifier outage, data feedback channel work; Ascending power amplifier, low noise amplifier outage, when downlink power amplifier, low noise amplifier energising, down going channel work.Synchronization control module is analyzed the frame structure of TD-SCDMA, and the switching point of location uplink and downlink is controlled the power supply of each several part circuit in order, realizes the two-way amplification of TD-SCDMA signal.Wherein, synchronization control module is by the control of powering of switch 104 and switch 113.
As preferably, can be with radio frequency circulator 103, ascending power amplifier 107, switch 104, descending low noise amplifier 106 is integrated into a circuit module, with radio frequency circulator 112, downlink power amplifier 115, switch 113, up low noise amplifier 116 is integrated into a circuit module, can tighten circuit design like this, save the space, repeater, and (ascending power amplifier 107 belongs to uplink because ascending power amplifier 107 and descending low noise amplifier 106 are belonged to two different paths, descending low noise amplifier 106 belongs to downlink), so these two parts are integrated in the circuit module and can produce interference, make whole repeater under the situation of reduced volume, isolate the better effects if of uplink downlink, same characteristics and advantage also since downlink power amplifier 115 and up low noise amplifier 116 be integrated in the circuit module.
As preferably, repeater of the present invention also comprises a monitoring module, be connected with described synchronization control module, obtain the information of each module in the described repeater, be used to be provided with the parameter of a module, the monitoring modular running status, as electric current, the power output of low noise amplifier, the electric current of power amplifier, temperature, input power, power output and output backward power.When surpassing threshold value, above-mentioned parameter then generates the maintenance server that warning message sends far-end to, this warning message can send to the remote maintenance server by BTS port or MS port, perhaps can send to the remote maintenance server by other wired or wireless modes.Can also report to the police by the indicator light of this machine of repeater.
As preferably, the power supply of repeater of the present invention adopts solar powered module.
Be illustrated in figure 2 as switch 104 partial circuit structure charts of the present invention, descending low noise amplifier 106 is connected with K switch 1, K switch 1 is connected with constant voltage source, described constant voltage source obtains the power supply supply and is converted to constant voltage source from repeater power supply (figure does not show), K switch 1 is accepted the control of synchronization control module 109, realize being switched on or switched off descending low noise amplifier 106 and being connected of constant voltage source according to sequencing control, thereby realize enabling of descending low noise amplifier 106.Ascending power amplifier 107 is connected with K switch 2, K switch 2 is connected with constant voltage source, between described K switch 2 and constant voltage source, also be parallel with storage capacitor 201, described storage capacitor 201 is used for the ripple of filtering constant voltage source, make filtered constant voltage source to up power amplifier 107 and 106 power supplies of descending low noise amplifier, when above-mentioned disconnection K1, cut off being connected of descending low noise amplifier 106 and storage capacitor 201 simultaneously, but maintenance ascending power amplifier 107 is connected with storage capacitor 201, can prevent the conditions of streaking of descending low noise amplifier 106; When cut-off switch K2, cut off being connected of ascending power amplifier 107 and storage capacitor 201 simultaneously, but kept being connected of descending low noise amplifier 106 and storage capacitor 201, can prevent the conditions of streaking of ascending power amplifier 107.K switch 2 is accepted the control of synchronization control module 109, realize that according to sequencing control ascending power amplifier 107 was switched on or switched off with being connected of constant voltage source, thereby realize enabling of ascending power amplifier 107, in ascending power amplifier match circuit, used high frequency capacitance 202, described high frequency capacitance 202 is used to mate ascending power amplifier 107, when K switch 2 is turn-offed, described high frequency capacitance 202 also can cause the delay phenomenon of ascending power amplifier 107, so need be to high frequency capacitance 202 repid discharges, K switch 3 is parallel to high frequency capacitance 202, and be connected with synchronization control module 109, accept the control of synchronization control module 109.When upward signal switches to downstream signal, high frequency capacitance 202 is discharged, synchronization control module 109 control cut-off switch K2, stop power supply to ascending power amplifier 107, connect K switch 1 simultaneously, begin descending low noise amplifier 106 is powered, and carry out repid discharge by connecting 3 pairs of high frequency capacitances of K switch 202; When descending signal switched to upward signal, synchronization control module 109 control cut-off switch K1 stopped the power supply to descending low noise amplifier 106, and connect K switch 2 simultaneously, begin ascending power amplifier 107 is powered, and while cut-off switch K3, make high frequency capacitance 202 work.
Be illustrated in figure 3 as switch 113 partial circuit structure charts of the present invention, up low noise amplifier 116 is connected with K switch 1 ', K switch 1 ' is connected with constant voltage source, described constant voltage source obtains the power supply supply and is converted to constant voltage source from repeater power supply (figure does not show), K switch 1 ' is accepted the control of synchronization control module 109, realize being switched on or switched off up low noise amplifier 116 and being connected of constant voltage source according to sequencing control, thereby realize enabling of up low noise amplifier 116.Downlink power amplifier 115 is connected with K switch 2 ', K switch 2 ' is connected with constant voltage source, between described K switch 2 ' and constant voltage source, also be parallel with storage capacitor 301, described storage capacitor 301 is used for the ripple of filtering constant voltage source, make filtered constant voltage source to downlink power amplifier 115 and 116 power supplies of up low noise amplifier, when above-mentioned disconnection K1 ', cut off being connected of up low noise amplifier 116 and storage capacitor 301 simultaneously, but maintenance downlink power amplifier 115 is connected with storage capacitor 301, can prevent the conditions of streaking of up low noise amplifier 116; When cut-off switch K2 ', cut off being connected of downlink power amplifier 115 and storage capacitor 301 simultaneously, but kept being connected of up low noise amplifier 116 and storage capacitor 301, can prevent the conditions of streaking of downlink power amplifier 115.K switch 2 ' is accepted the control of synchronization control module 109, realize that according to sequencing control downlink power amplifier 115 was switched on or switched off with being connected of constant voltage source, thereby realize enabling of downlink power amplifier 115, in the downlink power amplifier match circuit, used high frequency capacitance 302, described high frequency capacitance 302 is used to mate downlink power amplifier 115, when K switch 2 ' is turn-offed, described high frequency capacitance 302 also can cause the delay phenomenon of downlink power amplifier 115, so need be to high frequency capacitance 302 repid discharges, K switch 3 ' is parallel to high frequency capacitance 302, and be connected with synchronization control module 109, accept the control of synchronization control module 109.When descending signal switches to upward signal, high frequency capacitance 302 is discharged, synchronization control module 109 control cut-off switch K2 ', stop power supply to downlink power amplifier 115, connect K switch 1 ' simultaneously, begin up low noise amplifier 116 is powered, and high frequency capacitance 302 is carried out repid discharge by connecting K switch 3 '; When upward signal switches to downstream signal, synchronization control module 109 control cut-off switch K1 ', stop power supply to up low noise amplifier 116, and connect K switch 2 ' simultaneously, begin downlink power amplifier 115 is powered, and while cut-off switch K3 ', make high frequency capacitance 302 work.
In very short time, stop the work of power amplifier by above-mentioned switch designs, solved effectively because the conditions of streaking that power amplifier produces, thereby solved the problem that up-downgoing path in repeater is isolated.Discharge is not passive each time, because when signal uplink, high frequency capacitance in the ascending power amplifier 107 can not be discharged fast, during signal downlink, the high frequency capacitance of descending power amplifier 115 can not be discharged fast, so need be in the up moment, under the switching controls of synchronization control module 109, utilize K switch 3 simultaneously the downlink power amplifier 115 of down link to be discharged, in the descending moment, under the switching controls of synchronization control module 109, utilize K switch 3 ' simultaneously the ascending power amplifier 107 in the up link to be discharged.
Be illustrated in figure 4 as repeater signal downlink processing method flow diagram of the present invention, step 201, the repeater receives by antenna and descending input port and comes from signal of base station; Step 202, the synchronous described signal of synchronization control module; Described synchronization control module disconnects being connected of ascending power amplifier and up low noise amplifier and power supply respectively by switch; Step 204, described synchronization control module are controlled described switch described ascending power amplifier are discharged; Step 205 is sent to described downstream signal by output port user's mobile communication terminal.
In being up to descending handoff procedure, disconnect the power supply of ascending power amplifier and up low noise amplifier, connect the power supply of downlink power amplifier and descending low noise amplifier.
By between up low noise amplifier and storage capacitor, adding K switch 1, between ascending power amplifier and storage capacitor, add K switch 2, realize the isolation of ascending power amplifier and descending low noise amplifier and storage capacitor, avoid the hangover influence of storage capacitor ascending power amplifier and descending low noise amplifier.
By giving the high frequency capacitance paralleling switch K3 of ascending power amplifier, according to Synchronization Control described high frequency capacitance is carried out repid discharge, realization reduces the purpose of the conditions of streaking of ascending power amplifier.
Be illustrated in figure 5 as the up process flow figure of repeater signal of the present invention, step 301, the repeater receives the signal that comes from user's mobile communication terminal by antenna and up input port; Step 302, the synchronous described signal of synchronization control module; Described synchronization control module disconnects being connected of downlink power amplifier and descending low noise amplifier and power supply respectively by switch; Step 304, described synchronization control module control switch discharges to described downlink power amplifier; Step 305 sends described upward signal to base station by up output port.
In the downstream-to-upstream handoff procedure, disconnect the power supply of downlink power amplifier and descending low noise amplifier, connect the power supply of ascending power amplifier and up low noise amplifier.
By between up low noise amplifier and storage capacitor, adding K switch 1 ', between downlink power amplifier and storage capacitor, add K switch 2 ', realize the isolation of downlink power amplifier and up low noise amplifier and storage capacitor, avoid the hangover influence of storage capacitor downlink power amplifier and up low noise amplifier.
By giving the high frequency capacitance paralleling switch K3 ' of downlink power amplifier, according to Synchronization Control described high frequency capacitance is carried out repid discharge, realization reduces the purpose of the conditions of streaking of downlink power amplifier.
In the uplink and downlink signal processing, also comprise real-time monitoring step, monitor the running state parameter of each parts in the described repeater, when surpassing threshold value, monitor value then reports to the police to maintenance server.Can pass through TD-SCDMA data communication mode, TD-SCDMA short message mode etc. and transmit this warning message.
Beneficial effect of the present invention is, direct end uplink and down going channel switch thoroughly, the isolation height, and simultaneously owing to can close the power supply of uplink and downlink to timesharing, system's power saving, the efficient height, it is low to generate heat.And the volume of repeater is less, and applicability is good.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. TD-SCDMA repeater, this repeater comprises: power supply, synchronization control module, up low noise amplifier, ascending power amplifier, descending low noise amplifier, downlink power amplifier is characterized in that also comprising first switch, second switch;
Described ascending power amplifier is connected with described first switch respectively with descending low noise amplifier, described first switch is controlled the power supply of described ascending power amplifier and descending low noise amplifier under the control of described synchronization control module, and when signal uplink is switched to signal downlink, described ascending power amplifier is discharged; Described downlink power amplifier is connected with described second switch respectively with up low noise amplifier, described second switch is controlled the power supply of described downlink power amplifier and up low noise amplifier under the control of described synchronization control module, and when signal downlink switches to signal uplink, described downlink power amplifier is discharged.
2. a kind of TD-SCDMA according to claim 1 repeater, it is characterized in that described ascending power amplifier has high frequency capacitance, described first switch comprises K switch 3, described K switch 3 is parallel to described high frequency capacitance, when connecting described K switch 3 to described high frequency capacitance discharge.
3. a kind of TD-SCDMA according to claim 1 repeater, it is characterized in that described downlink power amplifier has high frequency capacitance, described second switch comprises K switch 3 ', described K switch 3 ' is parallel to described high frequency capacitance, when connecting described K switch 3 ' to described high frequency capacitance discharge.
4. a kind of TD-SCDMA according to claim 2 repeater is characterized in that, also comprises storage capacitor, is in parallel with described descending low noise amplifier and described ascending power amplifier; Described first switch also comprises K switch 1 and K switch 2, described K switch 1 is connected between described power supply and the described descending low noise amplifier, is used to connect or disconnect be switched on or switched off being connected of described descending low noise amplifier and described storage capacitor in the time of described descending low noise amplifier power supply; Described K switch 2 is connected between described ascending power amplifier and the described power supply, and described K switch 2 connects or disconnects described power supply and be switched on or switched off being connected of described ascending power amplifier and described storage capacitor in the time of the power supply of described ascending power amplifier.
5. a kind of TD-SCDMA according to claim 3 repeater is characterized in that, also comprises storage capacitor, is in parallel with described up low noise amplifier and described downlink power amplifier; Described second switch also comprises K switch 1 ' and K switch 2 ', described K switch 1 ' is connected between described power supply and the described up low noise amplifier, is used to connect or disconnect be switched on or switched off being connected of described up low noise amplifier and described storage capacitor in the time of described up low noise amplifier power supply; Described K switch 2 ' is connected between described downlink power amplifier and the described power supply, and described K switch 2 ' connects or disconnects described power supply and be switched on or switched off being connected of described downlink power amplifier and described storage capacitor in the time of the power supply of described downlink power amplifier.
6. a kind of TD-SCDMA according to claim 1 repeater, it is characterized in that, also comprise first radio frequency circulator and second radio frequency circulator, described first radio frequency circulator is connected with descending low noise amplifier with described ascending power amplifier, is used to separate the uplink and downlink signal; Described second radio frequency circulator is connected with up low noise amplifier with described downlink power amplifier, is used to separate the uplink and downlink signal.
7. a kind of TD-SCDMA according to claim 6 repeater is characterized in that, described ascending power amplifier, first switch, descending low noise amplifier, first radio frequency circulator are integrated in the circuit module; Described downlink power amplifier, second switch, up low noise amplifier, second radio frequency circulator are integrated in another circuit module.
8. a kind of TD-SCDMA according to claim 1 repeater, it is characterized in that, also comprise a monitoring module, be connected with described synchronization control module, parameter according to each parts in the described synchronization control module generates warning message, sends to far-end server.
9. a kind of TD-SCDMA according to claim 1 repeater is characterized in that described power supply is solar powered module.
10. TD-SCDMA repeater signal downlink processing method is characterized in that this method comprises:
Step 201, reception comes from signal of base station;
Step 202, the synchronous described signal of synchronization control module;
Step 203, described synchronization control module disconnects being connected of ascending power amplifier and up low noise amplifier and power supply respectively by switch;
Step 204, described synchronization control module are controlled described switch described ascending power amplifier are discharged;
Step 205 sends described downstream signal to user's mobile communication terminal.
11. a kind of TD-SCDMA repeater signal downlink processing method according to claim 10, it is characterized in that, describedly disconnect the ascending power amplifier respectively by switch and comprise, disconnect described ascending power amplifier and disconnecting being connected of described ascending power amplifier and storage capacitor when power supply is connected with up low noise amplifier and being connected of power supply.
12. a kind of TD-SCDMA repeater signal downlink processing method according to claim 11, it is characterized in that, describedly disconnect the ascending power amplifier respectively by switch and comprise with up low noise amplifier and being connected of power supply, when disconnecting described ascending power amplifier and storage capacitor is connected, connect the discharge circuit of the high frequency capacitance of described ascending power amplifier, described high frequency capacitance is discharged.
13. a kind of TD-SCDMA repeater signal downlink processing method according to claim 10, it is characterized in that also comprising a monitoring step, in the repeater signal downlink processing, monitor the running state parameter of each parts in the described repeater in real time, then report to the police to maintenance server when monitor value surpasses threshold value.
14. the up processing method of TD-SCDMA repeater signal is characterized in that this method comprises:
Step 301 receives the signal that comes from user's mobile communication terminal;
Step 302, the synchronous described signal of synchronization control module;
Step 303, described synchronization control module disconnects being connected of downlink power amplifier and descending low noise amplifier and power supply respectively by switch;
Step 304, described synchronization control module control switch discharges to described downlink power amplifier;
Step 305 sends described upward signal to base station.
15. the up processing method of a kind of TD-SCDMA repeater signal according to claim 14, it is characterized in that, describedly disconnect downlink power amplifier respectively by switch and comprise, disconnect described downlink power amplifier and disconnecting being connected of described downlink power amplifier and storage capacitor when power supply is connected with descending low noise amplifier and being connected of power supply.
16. the up processing method of a kind of TD-SCDMA repeater signal according to claim 15, it is characterized in that, describedly disconnect downlink power amplifier respectively by switch and comprise with descending low noise amplifier and being connected of power supply, when disconnecting described downlink power amplifier and storage capacitor is connected, connect the discharge circuit of the high frequency capacitance of described downlink power amplifier, described high frequency capacitance is discharged.
17. the up processing method of a kind of TD-SCDMA repeater signal according to claim 14, it is characterized in that, also comprise a monitoring step, in the up processing of repeater signal, monitor the running state parameter of each parts in the described repeater in real time, then report to the police to maintenance server when monitor value surpasses threshold value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101036293A CN101557247A (en) | 2008-04-09 | 2008-04-09 | TD-SCDMA repeater and method for processing uplink and downlink of signals |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101036293A CN101557247A (en) | 2008-04-09 | 2008-04-09 | TD-SCDMA repeater and method for processing uplink and downlink of signals |
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| CN101557247A true CN101557247A (en) | 2009-10-14 |
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| CNA2008101036293A Pending CN101557247A (en) | 2008-04-09 | 2008-04-09 | TD-SCDMA repeater and method for processing uplink and downlink of signals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740338A (en) * | 2012-06-04 | 2012-10-17 | 京信通信系统（中国）有限公司 | Automatic power-off protection method of repeater device |
| CN106160674A (en) * | 2009-12-21 | 2016-11-23 | 大力系统有限公司 | For improving the system of the isolation between transmitter and receiver |
| WO2020063612A1 (en) * | 2018-09-27 | 2020-04-02 | 惠州Tcl移动通信有限公司 | Mobile terminal and time division duplex system for controlling receiving sensitivity of tdd system |
| CN113746522A (en) * | 2021-07-21 | 2021-12-03 | 北京赫微科技有限公司 | 5G repeater signal processing method |
-
2008
- 2008-04-09 CN CNA2008101036293A patent/CN101557247A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160674A (en) * | 2009-12-21 | 2016-11-23 | 大力系统有限公司 | For improving the system of the isolation between transmitter and receiver |
| US10153789B2 (en) | 2009-12-21 | 2018-12-11 | Dali Systems Co. Ltd. | Remote radio head unit system with wideband power amplifier |
| CN102740338A (en) * | 2012-06-04 | 2012-10-17 | 京信通信系统（中国）有限公司 | Automatic power-off protection method of repeater device |
| CN102740338B (en) * | 2012-06-04 | 2015-07-29 | 京信通信系统（中国）有限公司 | A kind of Automatic power-off protection method of repeater device |
| WO2020063612A1 (en) * | 2018-09-27 | 2020-04-02 | 惠州Tcl移动通信有限公司 | Mobile terminal and time division duplex system for controlling receiving sensitivity of tdd system |
| CN113746522A (en) * | 2021-07-21 | 2021-12-03 | 北京赫微科技有限公司 | 5G repeater signal processing method |
| CN113746522B (en) * | 2021-07-21 | 2022-10-04 | 北京赫微科技有限公司 | 5G repeater signal processing method |
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Application publication date: 20091014 |