CN101945417B - Method and device for computing gains of multiple receiving links/transmitting links - Google Patents
Method and device for computing gains of multiple receiving links/transmitting links Download PDFInfo
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- CN101945417B CN101945417B CN201010212833.6A CN201010212833A CN101945417B CN 101945417 B CN101945417 B CN 101945417B CN 201010212833 A CN201010212833 A CN 201010212833A CN 101945417 B CN101945417 B CN 101945417B
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Abstract
The embodiment of the invention provides method and device for computing the gains of multiple receiving links/transmitting links, which belong to the technical field of wireless communication. The method comprises the following steps of: dividing one path of calibrating signal into multiple paths, and respectively coupling each path of calibrating signal to each receiving link; measuring the frequency compensation and temperature compensation data of the link in which one path of calibrating signal is before being divided into multiple paths; calibrating the receiving link to obtain the relevant peak amplitude value of each receiving link; and obtaining the gain of the calibrated link, and computing the gain of each receiving link. The device comprises a signal processing module, a divider, multiple directional couplers and a measuring module, wherein the signal processing module comprises a signal sending unit, a calibrating unit and a computing unit. The invention reduces the workload of measuring the gains of multiple receiving links and the gains of multiple transmitting links in a multi-antenna system, saves the measuring time and improves the accuracy and the consistency of the gains of the receiving/transmitting links.
Description
Technical field
The embodiment of the present invention relates to wireless communication technology field, relates in particular to a kind of method and device that calculates the gain of many receivers/transmitting chain.
Background technology
In multi-antenna beam formation system, there are many transmitting chains and many receivers, when system operation, need to obtain the link gain value of every receiver, and calculate received total wideband power (Received Total Wideband Power according to the link gain value of every receiver, hereinafter to be referred as RTWP), the RTWP obtaining can be used for judging the disturbed condition of whole network, makes network side carry out access judgement according to disturbed condition; Also need to obtain every transmitting chain gain, carry out close-loop power control according to this transmitting chain.
While obtaining the link gain of receiver and transmitting chain gain in prior art, all by manually utilizing measuring instrument to measure frequency compensation and the temperature compensation data of every receiver and every transmitting chain, in the time that system is moved, come enquiry frequency compensation and corresponding receiver and/or the transmitting chain gain of temperature compensation data according to system works frequency and temperature.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems:
In the time that the quantity of receiver and transmitting chain is more, if by frequency compensation and the temperature compensation data of the measurement of each link of manual measurement, not only surveying work amount is large, and length expends time in.
Summary of the invention
The embodiment of the present invention provides a kind of method and device that calculates the gain of many receivers/transmitting chain, for solving prior art in the time that the quantity of receiver/transmitting chain is more, manual measurement receiver/transmitting chain gain workload greatly, long defect expends time in.
The embodiment of the present invention provides a kind of method of calculating many receiver gains, comprising:
Jiang Yi road calibrating signal is divided into multichannel calibrating signal, and described multichannel calibrating signal is coupled to respectively to every receiver in many receivers;
Measurement is divided into frequency compensation and the temperature compensation data of described calibrating signal place, the road link before described multichannel calibrating signal;
The calibrating signal that utilization is coupled on described every receiver is calibrated corresponding receiver, obtains the relevant peaks range value of described every receiver;
Obtain calibration link gain according to described frequency compensation and temperature compensation data, and according to every receiver gain described in the relevant peaks range value of described calibration link gain, described every receiver and default calibrating signal data field power calculation.
The embodiment of the present invention provides a kind of method of calculating many transmitting chain gains, and described method comprises:
Signal on every transmitting chain in many transmitting chains is amplified, and be coupled out a part of signal as power control feedback signal in the signal of described every transmitting chain from amplifying, obtain multichannel power control feedback signal;
The signal of described every the transmitting chain after amplifying is isolated and filtering processing, from the signal after treatment of described every transmitting chain, be coupled out a part of signal as calibrating signal, obtain multichannel calibrating signal;
Described multichannel calibrating signal is merged, and measure frequency compensation and the temperature compensation data of the calibrating signal place link after described merging;
According to the signal characteristic on described every transmitting chain, distinguish in the calibrating signal after described merging from the calibrating signal on every transmitting chain, utilize each road calibrating signal of described differentiation to calibrate corresponding transmitting chain, obtain the relevant peaks range value of described every transmitting chain;
Obtain calibration link gain according to described frequency compensation and temperature compensation data, and according to every transmitting chain gain described in the power calculation of the relevant peaks range value of described calibration link gain, described every transmitting chain, default calibrating signal data field power and power control feedback signal corresponding to every transmitting chain.
The embodiment of the present invention provides a kind of device that calculates many receiver gains, and described device comprises: signal processing module, splitter, multiple directional coupler and measurement module, and wherein said signal processing module comprises: alignment unit and computing unit;
Described signal processing module, for utilizing described calibrating signal to calibrate every receiver of many receivers, and calculates described every receiver gain;
Described splitter, is divided into multichannel calibrating signal for Jiang Yi road calibrating signal, and described multichannel calibrating signal is sent to respectively to described multiple directional coupler;
Described directional coupler, is coupled to every receiver in described many receivers for each road calibrating signal of multichannel calibrating signal that described splitter is divided into, and sends to described alignment unit by described every receiver;
Described measurement module, for measuring the frequency compensation and the temperature compensation data that send to described splitter described calibrating signal place, a road link before;
Described alignment unit, for utilizing the calibrating signal on described every receiver of receiving to calibrate corresponding receiver, obtains the relevant peaks range value of described every receiver;
Described computing unit, obtain calibration link gain for frequency compensation and the temperature compensation data measured according to described measurement module, and every receiver gain described in the relevant peaks range value of every the receiver obtaining according to described calibration link gain, described alignment unit and default calibrating signal data field power calculation.
The embodiment of the present invention provides a kind of device that calculates many transmitting chain gains, described device comprises: signal processing module, multiple power amplifier, multiple the first directional coupler, radio-frequency (RF) switch, multiple signal processor, multiple the second directional coupler, mixer and measurement module, wherein, described signal processing module comprises: alignment unit and computing unit;
Described signal processing module, for calibrating every transmitting chain of many transmitting chains, and the gain of calculating described every transmitting chain;
Described power amplifier, for amplifying each the road signal on described every transmitting chain respectively;
Described the first directional coupler, is coupled out respectively a part of signal as power control feedback signal for the each signal from described power amplifier amplifies;
Described radio-frequency (RF) switch, selects a road power control feedback signal for the multichannel power control feedback signal being coupled out from described multiple the first directional couplers, and feeds back to described computing unit;
Described signal processor, isolates and filtering processing for the signal after described power amplifier is amplified;
Described the second directional coupler, is coupled out respectively a part of signal as calibrating signal for the each signal from described signal processor processes;
Described mixer, merges for the multichannel calibrating signal that described multiple the second directional couplers are coupled out, and the calibrating signal after merging is sent to described alignment unit;
Described measurement module, for measuring frequency compensation and the temperature compensation data of the calibrating signal place link after described mixer merges;
Described alignment unit, be used for according to the signal characteristic on described every transmitting chain, distinguish the calibrating signal from described every transmitting chain in the calibrating signal after described mixer merges, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain, obtain the relevant peaks range value of described every transmitting chain;
Described computing unit, obtain calibration link gain for frequency compensation and the temperature compensation data measured according to described measurement module, and every transmitting chain gain described in the power calculation of power control feedback signal corresponding to every transmitting chain selecting of the relevant peaks range value of every the transmitting chain obtaining according to described calibration link gain, described alignment unit, default calibrating signal data field power and described radio-frequency (RF) switch.
The embodiment of the present invention provides a kind of wireless transceiver system of many antennas, described system comprises the device of many receiver gains of above-mentioned calculating and calculates the device of transmitting chain gain, also comprise duplexer, for by isolated the signal on transmitting chain and receiver.
The embodiment of the present invention, owing to only measuring frequency compensation and the temperature compensation data of a calibrating signal, has reduced the workload of measuring greatly, has saved Measuring Time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the embodiment of the method schematic flow sheet that the present invention calculates receiver gain;
Fig. 2 is the embodiment of the method schematic flow sheet that the present invention calculates transmitting chain gain;
Fig. 3 is the device example structure schematic diagram that the present invention calculates receiver gain;
Fig. 4 is the device example structure schematic diagram that the present invention calculates transmitting chain gain;
Fig. 5 is the wireless transceiver system example structure schematic diagram of the many antennas of the present invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Fig. 1 is the embodiment of the method schematic flow sheet that the present invention calculates many receiver gains, and as shown in Figure 1, the method comprises:
Concrete, can be divided into multichannel calibrating signal by splitter by sending Yi road calibrating signal, and multichannel calibrating signal is coupled to every receiver in many receivers by directional coupler.
The present invention can be applied in multiaerial system, and therefore, many receivers can refer to many receivers of this multiaerial system.
Prior art is by manually utilizing measuring instrument to measure frequency compensation and the temperature compensation data of every receiver, then obtain corresponding receiver gain according to the frequency compensation of every receiver and temperature compensation data, in the time that receiver is many, the workload of measurement obviously increases; And the embodiment of the present invention is only measured the frequency compensation and the temperature compensation data that send to splitter calibrating signal place link before, owing to sending to splitter calibrating signal Shi Yi road before, therefore greatly reduce the workload of measuring.
The calibrating signal that step 103, utilization are coupled on above-mentioned every receiver is calibrated corresponding receiver, obtains the relevant peaks range value of every receiver in many receive chains;
Concrete, specify identical working frequency points to every receiver, and make, after multiaerial system operation, to utilize the calibrating signal being coupled on every receiver to calibrate corresponding receiver, obtain the relevant peaks range value of every receiver in many receivers.
Frequency is the numbering to fixed frequency, frequency interval is 200KHz, therefore can be divided into 125 wireless frequency sections from 890MHz, 890.2MHz, 890.4MHz, 890.6MHz, 890.8MHz, 891MHz......915MHz according to the frequency interval of 200KHz, and each frequency range is numbered, from 1,2,3,4......125; These numberings to fixed frequency are exactly said frequency.Specified working frequency points to receiver, specified operating frequency namely to this receiver, this receiver receives only the signal of assigned frequency.
Particularly, giving every receiver assigned frequency, and making after multiaerial system operation, can be according to the default time, regularly utilize the calibrating signal being coupled on every receiver to calibrate corresponding receiver; Also, can work as temperature and change time, utilize the calibrating signal being coupled on every receiver to calibrate corresponding receiver; Can also work as any receiver and gain while changing, utilize the calibrating signal being coupled on every receiver to calibrate corresponding receiver.
Concrete, establish A
peak1 *for the relevant peaks range value of every receiver obtaining after calibration, P
pn, RX, dBFsfor default calibrating signal numeric field power, G
rX, calibrationfor according to the frequency compensation of measuring and the calibration link gain that obtains of temperature compensation data; G
rX_link *for every receiver gain;
G
RX_link *＝(A
peak1 *)
2-G
RX，calibration-P
pn，RX，dBFs (1)
For example, in the time calculating the gain of Article 1 receiver, A
peak1 *for the relevant peaks range value of Article 1 receiver; While calculating the gain of Article 2 receiver, A
peak1 *for the relevant peaks range value of Article 2 receiver, the rest may be inferred, can obtain the gain of every receiver in many receivers.
After each receiver is calibrated, obtain the relevant peaks range value of every receiver, therefore, by changing the relevant peaks range value of every receiver in formula (1), just can obtain the gain of corresponding receiver.Due to the calibration of each receiver can dynamically be carried out according to pre-conditioned, the gain of every the receiver therefore obtaining by formula (1) also dynamically updates, therefore, also be more accurately according to this receiver dynamically updating RTWP obtaining that gains, according to this more accurately RTWP can better reflect the disturbed condition of whole network.
In the above-described embodiments, in step 104, " obtaining calibration link gain according to the frequency compensation data of above-mentioned measurement and temperature compensation data " also can do in step 102.In addition, described step 102 can be carried out with described step 101 simultaneously.
The embodiment of the present invention is divided into multichannel calibrating signal by Jiang Yi road calibrating signal, and this multichannel calibrating signal is coupled in each receiver, before Jiang mono-tunnel calibrating signal is divided into multichannel calibration, this calibrating signal is a road, only need measurement to be divided into multichannel frequency compensation and the temperature compensation data of calibrating signal place, Yi road link before, for prior art, not only greatly reduce the workload of measuring, save Measuring Time, in the time producing multi-antenna, also greatly improve production efficiency; And utilizing the calibrating signal on every receiver to calibrate corresponding receiver, primary calibration can obtain the relevant peaks range value of many receivers, therefore also just can obtain the gain of many receivers.
Further, can be according to pre-conditioned automatic startup calibration operation, describedly pre-conditionedly can be: meet the default time, when temperature changes, or any receiver gain is while changing etc.Therefore cable, measuring instrument and artificial manual impact be can not can be subject to, accuracy and consistency between every receiver gain greatly improved; And, while measuring the frequency compensation of receiver and temperature compensation data in prior art, need to interrupt multiaerial system, not only use inconvenient, and the accuracy of the receiver obtaining according to measurement result gain is low, and the present invention need not be interrupted multiaerial system, can realize frequency compensation and the temperature compensation data of on-line measurement calibrating signal place link, thereby the accuracy of the receiver obtaining according to this measurement result gain also just further improves; Therefore, also more accurate according to the gain RTWP that obtains of receiver more accurately, and RTWP can better reflect the disturbed condition of whole network more accurately.
Fig. 2 is the embodiment of the method schematic flow sheet that the present invention calculates many transmitting chain gains, and as shown in Figure 2, the method comprises:
The present invention can be applied in multiaerial system, and therefore, many transmitting chains can refer to many transmitting chains of this multiaerial system.
Concrete, signal after amplifying is isolated through circulator, again by isolation after signal after filtering device carry out filtering, filtered each road signal is coupled out to a part of signal as calibrating signal by directional coupler, there are many transmitting chains, just should there be mutually multiple power amplifiers, multiple circulator and multiple directional coupler, after multiple directional coupler couplings, obtain multichannel calibrating signal.
Multichannel calibrating signal can be merged through mixer, and measure frequency compensation and the temperature compensation data of the calibrating signal place link after merging.
Prior art is by manually utilizing measuring instrument to measure frequency compensation and the temperature compensation data of the power control feedback receiver of every transmitting chain, obtain transmitting chain gain according to frequency compensation and temperature compensation data, in the time that transmitting chain is many, the workload of measurement obviously increases; And the embodiment of the present invention is only measured frequency compensation and the temperature compensation data of the calibrating signal place link after mixer merges, owing to only having a road calibrating signal after mixer merges, therefore greatly reduce the workload of measuring.
Concrete, specify identical working frequency points to all transmitting chains, and make after multiaerial system operation, according to the signal characteristic on every transmitting chain, calibrating signal after merging is distinguished, make a distinction the calibrating signal on every transmitting chain, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain, obtain the relevant peaks range value of every transmitting chain in described many transmitting chains.
Specified working frequency points to transmitting chain, specified operating frequency namely to this transmitting chain, this transmitting chain is only launched the signal of assigned frequency.
Because frequency interval is 200KHz, specify identical working frequency points although give every transmitting chain, but this frequency can also be divided into multiple little frequencies, can be divided into interval 2KHz or other frequency by 200KHz, therefore can distinguish the calibrating signal obtaining from every transmitting chain according to these little frequencies.Because the feature such as time slot or coded sequence of signal on each transmitting chain is also different, therefore can distinguish each signal according to the feature such as time slot or coded sequence.After every calibrating signal corresponding to transmitting chain is distinguished, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain, obtain the relevant peaks range value of every transmitting chain in many transmitting chains.
Can be according to the default time, regularly utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain; Also, can work as temperature and change time, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain; Also, can work as any transmitting chain change in gain time, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain.
Concrete, establish A
peak2 *for the relevant peaks range value of every transmitting chain, P
pn, TX, dBFsfor default calibrating signal numeric field power, G
tX, calibrationfor according to the frequency compensation of measuring and the calibration link gain that obtains of temperature compensation data, P
pC_feedback *the power of the power control feedback signal that every transmitting chain is corresponding, G
pC_feedback *it is every transmitting chain gain;
G
PC_feedback *＝(A
peak2 *)
2-G
TX，calibration+P_offset-P
PC_feedback * (2)
For example, in the time calculating the gain of Article 1 transmitting chain, A
peak2 *for the relevant peaks range value of Article 1 transmitting chain, P
pC_feedback *the power of the power control feedback signal that is coupled out from Article 1 transmitting chain; While calculating the gain of Article 2 transmitting chain, A
peak2 *for the relevant peaks range value of Article 2 transmitting chain, P
pC_feedback *be the power of the power control feedback signal that is coupled out from Article 2 transmitting chain, the rest may be inferred, can obtain the gain of every transmitting chain in many transmitting chains.
It should be noted that, calculate after every transmitting chain gain, can adjust every transmitting chain gain according to predetermined threshold value, to reach the gain of expectation.For example, when every transmitting chain gain is 20DB, the best performance of multiaerial system, and calculate the gain of Article 1 transmitting chain for 21DB, the gain of Article 2 transmitting chain is 19DB ..., the gain of Article 1 transmitting chain can be reduced to 20DB from 21DB, and the gain of Article 2 transmitting chain is upgraded to 20DB etc. from 19DB, until all transmitting chain gains are adjusted into predetermined threshold value, make multiaerial system best performance.
After every transmitting chain is calibrated, obtain the relevant peaks range value of every transmitting chain, by changing the relevant peaks range value of every transmitting chain in formula (2), just can obtain corresponding transmitting chain gain.Further, can be automatic startup to the calibration of every transmitting chain, dynamically carry out, therefore every the transmitting chain gain obtaining by formula (2) also dynamically updates, therefore, every transmitting chain gain is adjusted into predetermined threshold value and also can dynamically updates, utilize the transmitting chain gain after this dynamic adjustment to go to carry out close-loop power control, reach closed power is carried out to the object of accurately controlling.
In the above embodiment of the present invention, " also measuring frequency compensation and the temperature compensation data of the calibrating signal place link after merging " in step 203 can carry out with step 204 simultaneously, or operates before or after step 204.
When the signal from transmitting chain finally outputs to before antenna by calibrating signal in the embodiment of the present invention, be coupled out, due to more close antenna, therefore can reflect more accurately that the signal on transmitting chain outputs to the actual power of antenna.
The embodiment of the present invention is passed through the signal on every transmitting chain after amplifying, in signal from amplifying, be coupled out a part of signal as power control feedback signal, obtain multichannel power control feedback signal, then by after the signal isolation after amplifying on transmitting chain and filtering processing, be coupled out a part of signal as calibrating signal, the multichannel calibrating signal obtaining is merged into a road calibrating signal, measure frequency compensation and the temperature compensation data of the calibrating signal place link after merging, calibrating signal after merging according to the feature differentiation of the signal on every transmitting chain again, utilization is closed each road calibrating signal of differentiation and is calibrated corresponding transmitting chain, obtain the relevant peaks range value of every transmitting chain in many transmitting chains, finally obtain every transmitting chain gain according to the relevant peaks range value of every transmitting chain and every power control feedback signal corresponding to transmitting chain.In the embodiment of the present invention, only measure frequency compensation and the temperature compensation data of the calibrating signal place link after merging, with respect to prior art, greatly reduced the workload of measuring, saved the time, improved the production efficiency of equipment.
Further, in embodiments of the present invention can be according to pre-conditioned automatic startup calibration operation, describedly pre-conditionedly can be: meet the default time, when temperature changes, or any receiver gain is while changing etc.Therefore calibration result can not be subject to cable, measuring instrument and artificial manual impact, thereby has greatly improved accuracy and the consistency of every transmitting chain gain; And, while measuring the frequency compensation of transmitting chain and temperature compensation data in prior art, need to interrupt multiaerial system, not only use inconvenient, and the accuracy of the transmitting chain obtaining according to measurement result gain is low, and the present invention need not be interrupted multiaerial system, can realize frequency compensation and the temperature compensation data of on-line measurement calibrating signal place link, thereby the accuracy of the transmitting chain obtaining according to this measurement result gain also just further improves; Because a transmitting chain generally has two frequencies, i.e. two frequencies, in prior art, a transmitting chain is calibrated, namely once two carrier waves are calibrated, can not accurately measure the little difference of transmitting chain for each carrier gains, and the present invention calibrates after giving every transmitting chain assigned frequency, so just can calibrate and power control for each carrier wave, can accurately measure the little difference of transmitting chain for each carrier gains, improve the performance of power control, improve gain flatness in emission band.
Embodiment 3
Fig. 3 is the device example structure schematic diagram that the present invention calculates receiver gain, as shown in Figure 3, this device comprises: signal processing module 30, splitter 31, multiple directional coupler 32 and measurement module 33, and wherein, signal processing module 30 comprises alignment unit 301 and computing unit 302;
Wherein, signal processing module 30 can also comprise: signal transmitting unit 300, for sending a road calibrating signal;
Accordingly, splitter 31, is divided into multichannel calibrating signal for signal transmitting unit 300 being sent to Yi road calibrating signal, and this multichannel calibrating signal is sent to respectively to multiple directional couplers 32.
The embodiment of the present invention is divided into multichannel calibrating signal by Jiang Yi road calibrating signal, and this multichannel calibrating signal is coupled in every receiver, before Jiang mono-tunnel calibrating signal is divided into multichannel calibration, this calibrating signal is a road, only need measurement to be divided into multichannel frequency compensation and the temperature compensation data of calibrating signal place, Yi road link before, for prior art, not only greatly reduce the workload of measuring, save the time, improve the production efficiency of equipment, and utilize the calibrating signal on each receiver to calibrate corresponding receiver, primary calibration can obtain the relevant peaks range value of many receivers and the gain of many receivers.
Further, in embodiments of the present invention, can according to pre-conditioned be automatically to start calibration operation, describedly pre-conditionedly can be: meet the default time, when temperature changes, or any receiver gain is while changing etc.Therefore can not be subject to cable, measuring instrument and artificial manual impact, greatly improve accuracy and consistency between every receiver gain; And, while measuring the frequency compensation of receiver and temperature compensation data in prior art, need to interrupt multiaerial system, not only use inconvenient, and the accuracy of the receiver obtaining according to measurement result gain is low, and the present invention need not be interrupted multiaerial system, can realize frequency compensation and the temperature compensation data of on-line measurement receiver, thereby the accuracy of the receiver obtaining according to measurement result gain also just further improves; Also more accurate according to the gain RTWP that obtains of receiver more accurately, and RTWP can better reflect the disturbed condition of whole network more accurately.
Embodiment 4
Fig. 4 is the device example structure schematic diagram that the present invention calculates transmitting chain gain, as shown in Figure 4, this device comprises: signal processing module 40, multiple power amplifier 41, multiple the first directional coupler 42, radio-frequency (RF) switch 43, multiple signal processor 44, multiple the second directional coupler 45, mixer 46 and measurement module 47, and wherein signal processing module 40 comprises: alignment unit 401 and computing unit 402;
Wherein, signal processing module 40, for calibrating every transmitting chain of many transmitting chains, and the gain of calculating every transmitting chain;
The first directional coupler 42, is coupled out respectively a part of signal as power control feedback signal for the each signal from power amplifier 41 amplifies;
Radio-frequency (RF) switch 43, selects a road power control feedback signal for the multichannel power control feedback signal being coupled out from multiple the first directional couplers 42, and feeds back to computing unit 402;
Wherein, each signal processor 44 comprises a circulator and a filter, and circulator, for the signal after power amplifier 41 amplifies is isolated, guarantees this signal one-way flow; Filter, for the signal after circulator isolation is carried out to filtering, so that a part of frequency signal allowing passes through smoothly, and the signal of other a part of frequency can not pass through owing to being subject to larger inhibition.
The second directional coupler 45, for being coupled out respectively a part of signal as calibrating signal from signal processor 44 each signal after treatment;
Wherein, this signal processing module 40 can also comprise: signal transmitting unit 400, for transmitting through every transmitting chain of many transmitting chains;
Accordingly, power amplifier 41, amplifies for each the road signal respectively signal transmitting unit 400 being sent.
Wherein, this signal processing module 40 can also comprise: adjustment unit, adjust for every the transmitting chain gain described computing unit being calculated according to predetermined threshold value, so that every transmitting chain gain reaches predetermined threshold value.
In the embodiment of the present invention, after the second directional coupler is positioned to filter, before antenna, because the second directional coupler is very near apart from antenna, therefore can reflect more accurately that the signal on transmitting chain outputs to the actual power of antenna.
The embodiment of the present invention is passed through the signal on every transmitting chain after amplifying, in signal from amplifying, be coupled out a part of signal as power control feedback signal, obtain multichannel power control feedback signal, then by after the signal isolation after amplifying on transmitting chain and filtering, be coupled out a part of signal as calibrating signal, the multichannel calibrating signal obtaining is merged into a road calibrating signal, measure frequency compensation and the temperature compensation data of the calibrating signal place link after merging, calibrating signal after merging according to the feature differentiation of the signal on every transmitting chain again, and utilize each road calibrating signal of closing after differentiation to calibrate corresponding transmitting chain, obtain the relevant peaks range value of every transmitting chain in many transmitting chains, finally obtain every transmitting chain gain according to the relevant peaks range value of every transmitting chain and every power control feedback signal corresponding to transmitting chain.In the embodiment of the present invention, only measure frequency compensation and the temperature compensation data of the calibrating signal place link after merging, with respect to prior art, greatly reduced the workload of measuring, saved the time, improved the production efficiency of equipment.
Further, in embodiments of the present invention, can according to pre-conditioned be automatically to start calibration operation, describedly pre-conditionedly can be: meet the default time, when temperature changes, or any receiver gain is while changing etc.Owing to being according to pre-conditioned automatic calibration, therefore calibration result can not be subject to cable, measuring instrument and artificial manual impact, thereby has greatly improved accuracy and the consistency of every transmitting chain gain; And, while measuring the frequency compensation of transmitting chain and temperature compensation data in prior art, need to interrupt multiaerial system, not only use inconvenient, and the accuracy of the transmitting chain obtaining according to measurement result gain is low, and the present invention need not be interrupted multiaerial system, can realize frequency compensation and the temperature compensation data of on-line measurement calibrating signal place link, thereby the accuracy of the transmitting chain obtaining according to this measurement result gain also just further improves; Because a transmitting chain generally has two frequencies, i.e. two frequencies, in prior art, a transmitting chain is calibrated, namely once two carrier waves are calibrated, can not accurately measure the little difference of transmitting chain for each carrier gains, and the present invention calibrates after giving every transmitting chain assigned frequency, so just can calibrate and power control for each carrier wave, can accurately measure the little difference of transmitting chain for each carrier gains, improve the performance of power control, improve gain flatness in emission band.
Embodiment 5
Fig. 5 is the wireless transceiver system example structure schematic diagram of the many antennas of the present invention, as shown in Figure 5, Fig. 5 is the combination of Fig. 3 and Fig. 4, that is to say the device of the device of calculating receiver gain and the gain of calculating transmitting chain is merged into a system, can be by synthetic the signal processing module in the signal processing module in embodiment 3 and embodiment 4 processing module in embodiment 5, mixer in splitter in embodiment 3 and embodiment 4 can be a device, that is to say that mixer can play the effect of signal being closed to road and shunt, splitter also can play the signal effect on He He road along separate routes.If be called mixer in Fig. 5, as shown in Figure 5, signal flows to the right during from the left side of mixer, what this mixer played is effect along separate routes, in the time that signal flows to the left side from the right of mixer, what this mixer played is exactly the effect of closing road, and those skilled in the art can understand this, and the present invention repeats no more.
It should be noted that, due to the device shown in the device shown in embodiment 3 and embodiment 4 is merged into a system, therefore need to increase duplexer in the corresponding place in the system shown in embodiment 5, for example, at close each root antenna place, a duplexer is set, closes behind road at mixer, that is to say on the link before splitter shunt a duplexer is set.Duplexer effect is by isolated the signal on transmitting chain and receiver, and assurance receiver and transmitting chain can normally be worked simultaneously.The essence of duplexer is two filters, one is the filter for receiver, another is the filter for transmitting chain, therefore can be by isolated the signal on transmitting chain and receiver by duplexer, and assurance receiver and transmitting chain can normally be worked simultaneously.Owing to having increased duplexer in the system shown in Fig. 5, therefore can remove the filter in signal processor in embodiment 4.In addition, embodiment 3 is identical with the effect of playing in the system shown in embodiment 5 with other module or device role in embodiment 4, repeats no more herein.
The wireless transceiver system of many antennas of the embodiment of the present invention can be base station etc.
The embodiment of the present invention can reach embodiment 3 and all effect and the objects of embodiment 4, further, after the device shown in embodiment 3 and embodiment 4 is merged, has saved device, has also saved the shared space of multiple devices, more convenient to use.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a method of calculating many transmitting chain gains, is characterized in that, described method comprises:
Signal on every transmitting chain in many transmitting chains is amplified, and be coupled out a part of signal as power control feedback signal in the signal of described every transmitting chain from amplifying, obtain multichannel power control feedback signal;
The signal of described every the transmitting chain after amplifying is isolated and filtering processing, from the signal after treatment of described every transmitting chain, be coupled out a part of signal as calibrating signal, obtain multichannel calibrating signal;
Described multichannel calibrating signal is merged, and measure frequency compensation and the temperature compensation data of the calibrating signal place link after described merging;
According to the signal characteristic on described every transmitting chain, distinguish in the calibrating signal after described merging from the calibrating signal on every transmitting chain, utilize each road calibrating signal of described differentiation to calibrate corresponding transmitting chain, obtain the relevant peaks range value of described every transmitting chain;
Obtain calibration link gain according to described frequency compensation and temperature compensation data, and according to every transmitting chain gain described in the power calculation of the relevant peaks range value of described calibration link gain, described every transmitting chain, default calibrating signal data field power and power control feedback signal corresponding to every transmitting chain.
2. the method for many transmitting chain gains of calculating according to claim 1, is characterized in that, described method also comprises:
According to predetermined threshold value, every the transmitting chain gain calculating is adjusted, so that described every transmitting chain gain reaches predetermined threshold value.
3. one kind is calculated the device of many transmitting chain gains, it is characterized in that, described device comprises: signal processing module, multiple power amplifier, multiple the first directional coupler, radio-frequency (RF) switch, multiple signal processor, multiple the second directional coupler, mixer and measurement module, wherein, described signal processing module comprises: alignment unit and computing unit;
Described signal processing module, for calibrating every transmitting chain of many transmitting chains, and the gain of calculating described every transmitting chain;
Described power amplifier, for amplifying each the road signal on described every transmitting chain respectively;
Described the first directional coupler, is coupled out respectively a part of signal as power control feedback signal for the each signal from described power amplifier amplifies;
Described radio-frequency (RF) switch, selects a road power control feedback signal for the multichannel power control feedback signal being coupled out from described multiple the first directional couplers, and feeds back to described computing unit;
Described signal processor, isolates and filtering processing for the signal after described power amplifier is amplified;
Described the second directional coupler, is coupled out respectively a part of signal as calibrating signal for the each signal from described signal processor processes;
Described mixer, merges for the multichannel calibrating signal that described multiple the second directional couplers are coupled out, and the calibrating signal after merging is sent to described alignment unit;
Described measurement module, for measuring frequency compensation and the temperature compensation data of the calibrating signal place link after described mixer merges;
Described alignment unit, be used for according to the signal characteristic on described every transmitting chain, distinguish the calibrating signal from described every transmitting chain in the calibrating signal after described mixer merges, utilize each road calibrating signal of distinguishing to calibrate corresponding transmitting chain, obtain the relevant peaks range value of described every transmitting chain;
Described computing unit, obtain calibration link gain for frequency compensation and the temperature compensation data measured according to described measurement module, and every transmitting chain gain described in the power calculation of power control feedback signal corresponding to every transmitting chain selecting of the relevant peaks range value of every the transmitting chain obtaining according to described calibration link gain, described alignment unit, default calibrating signal data field power and described radio-frequency (RF) switch.
4. the device of many transmitting chain gains of calculating according to claim 3, is characterized in that, described signal processing module also comprises:
Signal transmitting unit, for transmitting through described each transmitting chain of many transmitting chains.
5. according to the device of many transmitting chain gains of the calculating described in claim 3 or 4, it is characterized in that, described signal processor comprises:
Circulator, for isolating the each signal after described power amplifier amplifies;
Filter, for carrying out filtering to the each signal after described circulator isolation.
6. the device of many transmitting chain gains of calculating according to claim 5, is characterized in that, described signal processing module also comprises:
Adjustment unit, adjusts for every the transmitting chain gain described computing unit being calculated according to predetermined threshold value, so that described every transmitting chain gain reaches predetermined threshold value.
7. a wireless transceiver system for antenna more than, is characterized in that, described system comprises the device of many transmitting chains gains of calculating as described in claim 3 to 6 any one, also comprises duplexer, for by isolated the signal on transmitting chain and receiver.
8. the wireless transceiver system of many antennas as claimed in claim 7, is characterized in that, the wireless transceiver system of described many antennas is base station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212833.6A CN101945417B (en) | 2010-06-28 | 2010-06-28 | Method and device for computing gains of multiple receiving links/transmitting links |
| PCT/CN2011/073626 WO2012000345A1 (en) | 2010-06-28 | 2011-05-04 | Method and device for calculating gain of multiple reception links/transmission links |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010212833.6A CN101945417B (en) | 2010-06-28 | 2010-06-28 | Method and device for computing gains of multiple receiving links/transmitting links |
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| CN101945417A CN101945417A (en) | 2011-01-12 |
| CN101945417B true CN101945417B (en) | 2014-06-11 |
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| CN201010212833.6A Expired - Fee Related CN101945417B (en) | 2010-06-28 | 2010-06-28 | Method and device for computing gains of multiple receiving links/transmitting links |
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| CN (1) | CN101945417B (en) |
| WO (1) | WO2012000345A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101945417B (en) * | 2010-06-28 | 2014-06-11 | 深圳市华为安捷信电气有限公司 | Method and device for computing gains of multiple receiving links/transmitting links |
| CN102957485B (en) * | 2011-08-19 | 2015-09-16 | 中兴通讯股份有限公司 | Multiple base station power calibrating installation and method |
| CN102664599A (en) * | 2012-04-05 | 2012-09-12 | 华为技术有限公司 | Gain compensation method in band-cross measurement and device thereof |
| CN105657723A (en) * | 2014-11-20 | 2016-06-08 | 中兴通讯股份有限公司 | Method and device for realizing cell merging |
| US10630410B2 (en) | 2016-05-13 | 2020-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US10367677B2 (en) | 2016-05-13 | 2019-07-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| CN107370464A (en) * | 2017-07-14 | 2017-11-21 | 重庆微标科技股份有限公司 | RF power amplification power compensating system and method |
| CN108111176B (en) * | 2017-12-08 | 2021-02-19 | Tcl移动通信科技（宁波）有限公司 | Double-antenna radio frequency power detection circuit, device and mobile terminal |
| CN113055058B (en) * | 2019-12-27 | 2023-09-08 | 中兴通讯股份有限公司 | Base station, multi-antenna receiving and transmitting device and control method thereof |
| CN111505555B (en) * | 2020-03-26 | 2022-08-12 | 中国航天系统科学与工程研究院 | Non-coherent electromagnetic detection external field automatic calibration system and method |
| CN114337714A (en) * | 2020-09-29 | 2022-04-12 | 中兴通讯股份有限公司 | Communication apparatus, control method, base station, and computer-readable storage medium |
| CN112737618B (en) * | 2020-12-24 | 2022-04-12 | 深圳市鼎阳科技股份有限公司 | Temperature compensation method for radio frequency receiver |
| CN114252708B (en) * | 2022-03-01 | 2022-05-17 | 陕西拾贝通讯技术有限公司 | Automatic calibration method for antenna gain with controllable precision |
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| CN101350643A (en) * | 2007-09-18 | 2009-01-21 | 深圳国人通信有限公司 | Method for compensating RF module performance and improved RF module |
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| CN101945417A (en) | 2011-01-12 |
| WO2012000345A1 (en) | 2012-01-05 |
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