CN101945417A - 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
- Publication number
- CN101945417A CN101945417A CN 201010212833 CN201010212833A CN101945417A CN 101945417 A CN101945417 A CN 101945417A CN 201010212833 CN201010212833 CN 201010212833 CN 201010212833 A CN201010212833 A CN 201010212833A CN 101945417 A CN101945417 A CN 101945417A
- Authority
- CN
- China
- Prior art keywords
- signal
- link
- transmitting chain
- gain
- calibrating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
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 invention relates to wireless communication technology field, relates in particular to a kind of many method and devices that receive link/transmitting chain gain that calculate.
Background technology
In the multi-antenna beam formation system, many transmitting chains and many reception links are arranged, when system moves, need obtain every link gain value that receives link, and according to every link gain value calculating received total wideband power (Received Total Wideband Power that receives link, hereinafter to be referred as RTWP), the RTWP that obtains can be used for judging the disturbed condition of whole network, makes network side carry out access according to disturbed condition and judges; Also need to obtain every transmitting chain gain, carry out closed power control according to this transmitting chain.
When obtaining the link gain that receives link and transmitting chain gain in the prior art, all be by manually utilizing measuring instrument to measure every frequency compensation and temperature compensation data that receives link and every transmitting chain, when system moves, come the reception link of enquiry frequency compensation and temperature compensation data correspondence and/or transmitting chain to gain according to system works frequency and temperature.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
When the quantity that receives link and transmitting chain more for a long time, if by the frequency compensation and the temperature compensation data of the measurement of each bar link of manual measurement, not only the surveying work amount is big, length expends time in.
Summary of the invention
The embodiment of the invention provides a kind of many method and devices that receive link/transmitting chain gain that calculate, be used for solving prior art when the quantity that receives link/transmitting chain more for a long time, manual measurement receives that link/transmitting chain gain workload is big, long defective expends time in.
The embodiment of the invention provides a kind of many methods that receive link gain of calculating, and comprising:
With one tunnel calibrating signal demultiplexing calibrating signal, and described multichannel calibrating signal is coupled to many every of receiving in the links respectively receives links;
Measurement is divided into the frequency compensation and the temperature compensation data of described one tunnel calibrating signal place link before the described multichannel calibrating signal;
Described every corresponding reception link of calibrating signal calibration that receives on the link is coupled in utilization, obtains described every relevant peaks range value that receives link;
Obtain the calibration link gain according to described frequency compensation and temperature compensation data, and receive link gain according to described calibration link gain, described every relevant peaks range value and described every of default calibrating signal data field power calculation that receives link.
The embodiment of the 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 and Feedback signal the signal of described every the transmitting chain after amplifying, obtain multichannel power Control and Feedback signal;
The signal of described every the transmitting chain after amplifying is isolated and Filtering Processing, from the signal after the processing of described every transmitting chain, be coupled out a part of signal, obtain the multichannel calibrating signal as calibrating signal;
Described multichannel calibrating signal is merged, and measure the frequency compensation and the temperature compensation data of the calibrating signal place link after the described merging;
According to the signal characteristic on described every transmitting chain, distinguish in the calibrating signal after the described merging from the calibrating signal on every transmitting chain, utilize the corresponding transmitting chain of each road calibrating signal calibration of described differentiation, obtain the relevant peaks range value of described every transmitting chain;
Obtain the calibration link gain according to described frequency compensation and temperature compensation data, and according to described every transmitting chain gain of power calculation of the power Control and Feedback signal of the relevant peaks range value of described calibration link gain, described every transmitting chain, default calibrating signal data field power and every transmitting chain correspondence.
The embodiment of the invention provides a kind of many devices that receive link gain that calculate, and described device comprises: signal processing module, splitter, a plurality of directional coupler and measurement module, and wherein said signal processing module comprises: alignment unit and computing unit;
Described signal processing module is used for utilizing described calibrating signal to receive every reception of link link to many and calibrates, and calculates described every reception link gain;
Described splitter is used for one tunnel calibrating signal demultiplexing calibrating signal, and described multichannel calibrating signal is sent to described a plurality of directional coupler respectively;
Described directional coupler, each the road calibrating signal of multichannel calibrating signal that is used for that described splitter is divided into are coupled to described many every of receiving in the link and receive link, and send to described alignment unit by described every reception link;
Described measurement module is used to measure the frequency compensation and the temperature compensation data that send to described splitter described one tunnel calibrating signal place link before;
Described alignment unit is used to utilize described every corresponding reception link of calibrating signal calibration that receives on the link of receiving, obtains described every relevant peaks range value that receives link;
Described computing unit, be used for obtaining the calibration link gain, and receive link gain according to every relevant peaks range value and described every of default calibrating signal data field power calculation that receives link that described calibration link gain, described alignment unit obtain according to frequency compensation and temperature compensation data that described measurement module is measured.
The embodiment of the invention provides a kind of device that calculates many transmitting chain gains, described device comprises: signal processing module, a plurality of power amplifier, a plurality of first directional coupler, radio-frequency (RF) switch, a plurality of signal processor, a plurality of second directional coupler, mixer and measurement module, wherein, described signal processing module comprises: alignment unit and computing unit;
Described signal processing module is used for calibrating every transmitting chain of many transmitting chains, and the gain of calculating described every transmitting chain;
Described power amplifier is used for respectively each the road signal on described every transmitting chain being amplified;
Described first directional coupler, each signal after being used for amplifying from described power amplifier is coupled out a part of signal respectively as power Control and Feedback signal;
Described radio-frequency (RF) switch is used for selecting one road power Control and Feedback signal from the multichannel power Control and Feedback signal that described a plurality of first directional couplers are coupled out, and feeds back to described computing unit;
Described signal processor is used for the signal after the described power amplifier amplification is isolated and Filtering Processing;
Described second directional coupler, each signal that is used for after the described signal processor processes is coupled out a part of signal respectively as calibrating signal;
Described mixer be used for the multichannel calibrating signal that described a plurality of second directional couplers are coupled out is merged, and the calibrating signal after will merging sends to described alignment unit;
Described measurement module is used to measure the 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 in the calibrating signal after described mixer merges calibrating signal from described every transmitting chain, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration, obtain the relevant peaks range value of described every transmitting chain;
Described computing unit, be used for obtaining the calibration link gain according to frequency compensation and temperature compensation data that described measurement module is measured, and described every transmitting chain gain of power calculation of the power Control and Feedback signal of every transmitting chain correspondence selecting of relevant peaks range value, default calibrating signal data field power and the described radio-frequency (RF) switch of every the transmitting chain that obtains according to described calibration link gain, described alignment unit.
The embodiment of the invention provides a kind of wireless transceiver system of many antennas, described system comprises that many of above-mentioned calculating receive the device of link gain and calculate the device of transmitting chain gain, also comprise duplexer, be used for the signal on transmitting chain and the reception link isolated.
The embodiment of the invention has reduced the workload of measuring greatly owing to only measure the frequency compensation and the temperature compensation data of a calibrating signal, has saved Measuring Time.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 calculates the method embodiment schematic flow sheet that receives link gain for the present invention;
Fig. 2 calculates the method embodiment schematic flow sheet of transmitting chain gain for the present invention;
Fig. 3 calculates the device example structure schematic diagram that receives link gain for the present invention;
Fig. 4 calculates the device example structure schematic diagram of transmitting chain gain for the present invention;
Fig. 5 is the wireless transceiver system example structure schematic diagram of the many antennas of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment 1
Fig. 1 calculates many method embodiment schematic flow sheets that receive link gain for the present invention, and as shown in Figure 1, this method comprises:
Concrete, the road calibrating signal that sends can be passed through splitter demultiplexing calibrating signal, and the multichannel calibrating signal is coupled to many every reception links that receive in the links by directional coupler.
The present invention can be applied in the multiaerial system, and therefore, many receive link and can refer to that many of this multiaerial system receive link.
The frequency compensation data and the temperature compensation data of road calibrating signal place link before step 102, the measurement demultiplexing calibrating signal that is to say and measure frequency compensation data and the temperature compensation data that sends to splitter calibrating signal place link before;
Prior art is by manually utilizing measuring instrument to measure every frequency compensation and temperature compensation data that receives link, obtain corresponding reception link gain according to every frequency compensation and temperature compensation data that receives link then, when the reception link was many, the workload of measurement obviously increased; And the embodiment of the invention is only measured frequency compensation and the temperature compensation data that sends to splitter calibrating signal place link before, because the calibrating signal that sends to before the splitter is one the tunnel, has therefore reduced the workload of measuring greatly.
Above-mentioned every corresponding reception link of calibrating signal calibration that receives on the link is coupled in step 103, utilization, obtains every relevant peaks range value that receives link in many reception chains;
Concrete, give every to receive the identical working frequency points of link appointment, and after making that multiaerial system is moved, utilize and be coupled to every corresponding reception link of calibrating signal calibration that receives on the link, obtain every relevant peaks range values that receive link in many reception links.
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 for the reception link, just specified operating frequency to this reception link, promptly this reception link receives only the signal of assigned frequency.
Particularly, giving every to receive the link assigned frequency, and making and regularly to utilize and to be coupled to every corresponding reception link of calibrating signal calibration that receives on the link according to the default time after the multiaerial system operation; In the time of also can working as temperature and change, utilize and be coupled to every corresponding link that receives of calibrating signal calibration that receives on the link; Can also work as any one when receiving link gain and changing, utilize and be coupled to every corresponding reception link of calibrating signal calibration that receives on the link.
Concrete, establish A
Peak1 *Be every the relevant peaks range value that receives link that obtains after the calibration, P
Pn, RX, dBFsBe default calibrating signal numeric field power, G
RX, calibrationBe the calibration link gain that obtains according to the frequency compensation of measuring and temperature compensation data; G
RX_link *Be every reception link gain;
G
RX_link *＝(A
peak1 *)
2-G
RX，calibration-P
pn，RX，dBFs (1)
For example, when calculating the gain of article one reception link, A
Peak1 *Receive the relevant peaks range value of link for article one; When calculating the gain of second reception link, A
Peak1 *Be the relevant peaks range value of second reception link, the rest may be inferred, can obtain many and receive every gains that receive link in the links.
Each is received the relevant peaks range value that obtains every reception link after link is calibrated, therefore, just can obtain the gain that correspondence receives link by changing every relevant peaks range value that receives link in the formula (1).Because each bar being received the calibration of link can dynamically carry out according to pre-conditioned, therefore every the gain that receives link that obtains by formula (1) also dynamically updates, therefore, the RTWP that obtains according to this reception link gain that dynamically updates also is more accurately, according to this more accurately RTWP can better reflect the disturbed condition of whole network.
In the above-described embodiments, in the step 104, " frequency compensation data and temperature compensation data according to above-mentioned measurement obtain the calibration link gain " also can do in step 102.In addition, described step 102 can be carried out simultaneously with described step 101.
The embodiment of the invention is passed through one tunnel calibrating signal demultiplexing calibrating signal, and this multichannel calibrating signal is coupled to each bar receives in link, before the calibration of Jiang Yilu calibrating signal demultiplexing, this calibrating signal is one the tunnel, only need to measure frequency compensation and the temperature compensation data that is divided into multichannel road calibrating signal place link before, for prior art, not only reduced the workload of measuring greatly, saved Measuring Time, when producing multi-antenna, also improved production efficiency greatly; And utilizing every corresponding reception link of calibrating signal calibration that receives on the link, primary calibration can obtain many relevant peaks range values that receive link, therefore also just can obtain many gains that receive link.
Further, can be according to pre-conditioned automatic startup calibration operation, described pre-conditioned can for: satisfy the default time, when temperature changes, perhaps any one when receiving link gain and changing or the like.Therefore can not can be subjected to cable, measuring instrument and artificial manual influence, improved every accuracy and consistency that receives between the link gain greatly; And, need interrupt multiaerial system when measure receiving the frequency compensation of link and temperature compensation data in the prior art, not only use inconvenient, and the accuracy of the reception link gain that obtains according to measurement result is low, and the present invention need not be interrupted multiaerial system, can be implemented in line and measure the frequency compensation and the temperature compensation data of calibrating signal place link, thereby the accuracy of the reception link gain that obtains according to this measurement result has also just further improved; Therefore, according to receiving RTWP that link gain obtains more accurately also relatively accurately, and RTWP can better reflect the disturbed condition of whole network more accurately.
Embodiment 2
Fig. 2 calculates the method embodiment schematic flow sheet of many transmitting chain gains for the present invention, and as shown in Figure 2, this method comprises:
Step 201, the signal on every transmitting chain in many transmitting chains is amplified, and be coupled out a part of signal as power Control and Feedback signal the signal of every transmitting chain after amplifying, obtain multichannel power Control and Feedback signal;
The present invention can be applied in the multiaerial system, and therefore, many transmitting chains can refer to many transmitting chains of this multiaerial system.
The signal of step 202, every transmitting chain after will amplifying is isolated and Filtering Processing, obtain the signal after multichannel is handled, be coupled out a part of signal as calibrating signal in the signal after the processing of every transmitting chain from these many transmitting chains, obtain the multichannel calibrating signal;
Concrete, signal after amplifying is isolated through circulator, signal after will isolating again carries out filtering through filter, filtered each road signal is coupled out a part of signal as calibrating signal by directional coupler, many transmitting chains are arranged, just mutually a plurality of power amplifiers, a plurality of circulator and a plurality of directional coupler should be arranged, through obtaining the multichannel calibrating signal after a plurality of directional coupler couplings.
Step 203, the multichannel calibrating signal that is coupled out is merged, and measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging;
The multichannel calibrating signal can be merged through mixer, and measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging.
Prior art is frequency compensation and the temperature compensation data that is received link by the power Control and Feedback of manually utilizing measuring instrument to measure every transmitting chain, obtain the transmitting chain gain according to frequency compensation and temperature compensation data, when transmitting chain was many, the workload of measurement obviously increased; And the embodiment of the invention is only measured frequency compensation and temperature compensation data through the calibrating signal place link after the mixer merging, owing to through having only one tunnel calibrating signal after the mixer merging, therefore reduced the workload of measurement greatly.
Step 204, according to the signal characteristic on every transmitting chain, distinguish in the calibrating signal after merging from the calibrating signal on every transmitting chain, and utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration, obtain the relevant peaks range value of every transmitting chain in many transmitting chains;
Concrete, specify identical working frequency points for all transmitting chains, and after making that multiaerial system is moved, according to the signal characteristic on every transmitting chain, calibrating signal after merging is distinguished, promptly make a distinction the calibrating signal on every transmitting chain, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration, 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 just for this transmitting chain, promptly this transmitting chain is only launched the signal of assigned frequency.
Because frequency interval is 200KHz, specified identical working frequency points although give every transmitting chain, but this frequency can also be divided into a plurality of little frequencies, be about to 200KHz and can be divided into 2KHz or other frequency at interval, therefore can distinguish the calibrating signal that obtains from every transmitting chain according to these little frequencies.Because features such as the time slot of signal or coded sequence are also different on each transmitting chain, therefore can distinguish each signal according to features such as time slot or coded sequences.After the calibrating signal differentiation with every transmitting chain correspondence, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration, obtain the relevant peaks range value of every transmitting chain in many transmitting chains.
Can regularly utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration according to the default time; In the time of also can working as temperature and change, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration; In the time of also can working as any transmitting chain change in gain, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration.
Step 205, obtain the calibration link gain according to frequency compensation and the temperature compensation data measured, and every transmitting chain gain in many transmitting chains of power calculation of the power Control and Feedback signal of relevant peaks range value, default calibrating signal data field power and every transmitting chain correspondence of every the transmitting chain that obtains according to the calibration link gain, through calibration.
Concrete, establish A
Peak2 *Be the relevant peaks range value of every transmitting chain, P
Pn, TX, dBFsBe default calibrating signal numeric field power, G
TX, calibrationBe the calibration link gain that frequency compensation and temperature compensation data according to measurement obtain, P
PC_feedback *Be the power of the power Control and Feedback signal of every transmitting chain correspondence, 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, when calculating the gain of article one transmitting chain, A
Peak2 *Be the relevant peaks range value of article one transmitting chain, P
PC_feedback *Be the power of the power Control and Feedback signal that is coupled out from article one transmitting chain; When calculating the gain of second transmitting chain, A
Peak2 *Be the relevant peaks range value of second transmitting chain, P
PC_feedback *Be the power of the power Control and Feedback signal that is coupled out from the second transmitting chain, the rest may be inferred, can obtain the gain of every transmitting chain in many transmitting chains.
Need to prove, calculate the gain of every transmitting chain after, 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, be 21DB and calculate the gain of article one transmitting chain, the gain of second transmitting chain is 19DB ..., then the gain of article one transmitting chain can be reduced to 20DB from 21DB, and second transmitting chain gain is upgraded to 20DB etc. from 19DB, up to all transmitting chains gains are adjusted into predetermined threshold value, make the multiaerial system best performance.
Obtain the relevant peaks range value of every transmitting chain after every transmitting chain calibrated,, just can obtain corresponding transmitting chain and gain by changing the relevant peaks range value of every transmitting chain in the formula (2).Further, calibration to every transmitting chain can be automatic startup, dynamically carry out, therefore every the transmitting chain gain that obtains by formula (2) also dynamically updates, therefore, every transmitting chain gain is adjusted into predetermined threshold value also can dynamically updates, utilize this dynamic adjusted transmitting chain gain to go to carry out closed power control, reach the purpose that closed power is accurately controlled.
In the above embodiment of the present invention, " and frequency compensation and the temperature compensation data of the calibrating signal place link after the measurement merging " in the step 203 can carry out simultaneously with step 204, perhaps operates before or after step 204.
Therefore be coupled out when in the embodiment of the invention signal of calibrating signal from transmitting chain being outputed at last before the antenna, owing to more close antenna can reflect more accurately that the signal on the transmitting chain outputs to the actual power of antenna.
The embodiment of the invention is by after amplifying the process of the signal on every transmitting chain, be coupled out a part of signal as power Control and Feedback signal the signal after amplifying, obtain multichannel power Control and Feedback signal, then with after the Signal Spacing and Filtering Processing after amplifying on the transmitting chain, be coupled out a part of signal as calibrating signal, the multichannel calibrating signal that obtains is merged into one tunnel calibrating signal, measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging, again according to the calibrating signal after the feature differentiation merging of the signal on every transmitting chain, the corresponding transmitting chain of each road calibrating signal calibration of differentiation is closed in utilization, obtain the relevant peaks range value of every transmitting chain in many transmitting chains, obtain every transmitting chain gain according to the relevant peaks range value of every transmitting chain and the power Control and Feedback signal of every transmitting chain correspondence at last.Only measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging in the embodiment of the invention, with respect to prior art, reduced the workload of measuring greatly, saved the time, improved efficiency of equipment.
Further, in embodiments of the present invention can be according to pre-conditioned automatic startup calibration operation, described pre-conditioned can for: satisfy the default time, when temperature changes, perhaps any one when receiving link gain and changing or the like.Therefore calibration result can not be subjected to cable, measuring instrument and artificial manual influence, thereby has improved the accuracy and the consistency of every transmitting chain gain greatly; And, need interrupt multiaerial system when measuring the frequency compensation of transmitting chain and temperature compensation data in the prior art, not only use inconvenient, and the accuracy that gains according to the transmitting chain that measurement result obtains is low, and the present invention need not be interrupted multiaerial system, can be implemented in line and measure the frequency compensation and the temperature compensation data of calibrating signal place link, thereby the accuracy that gains according to the transmitting chain that this measurement result obtains has also just further improved; Because a transmitting chain generally has two frequencies, i.e. two frequencies, in the prior art transmitting chain is calibrated, just once two carrier waves are calibrated, can not accurately measure the little difference of transmitting chain at each carrier gains, and the present invention calibrates after giving every transmitting chain assigned frequency, so just can calibrate with power and control at each carrier wave, can accurately measure the little difference of transmitting chain at each carrier gains, improve the performance of power control, improve gain flatness in the emission band.
Embodiment 3
Fig. 3 calculates the device example structure schematic diagram that receives link gain for the present invention, as shown in Figure 3, this device comprises: signal processing module 30, splitter 31, a plurality of 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 is used to send one tunnel calibrating signal;
Accordingly, splitter 31 is used for road calibrating signal demultiplexing calibrating signal with signal transmitting unit 300 transmissions, and this multichannel calibrating signal is sent to a plurality of directional couplers 32 respectively.
The embodiment of the invention is passed through one tunnel calibrating signal demultiplexing calibrating signal, and this multichannel calibrating signal is coupled to every receives in the link, before the calibration of Jiang Yilu calibrating signal demultiplexing, this calibrating signal is one the tunnel, only need to measure frequency compensation and the temperature compensation data that is divided into multichannel road calibrating signal place link before, for prior art, not only reduced the workload of measuring greatly, saved the time, improved efficiency of equipment, and utilizing each bar to receive the reception link of the calibrating signal calibration correspondence on the link, primary calibration can obtain many relevant peaks range value and many gains that receive links of receiving links.
Further, in embodiments of the present invention, can according to pre-conditioned be to start calibration operation automatically, described pre-conditioned can for: satisfy the default time, when temperature changes, perhaps any one when receiving link gain and changing or the like.Therefore can not be subjected to cable, measuring instrument and artificial manual influence, improve every accuracy and consistency that receives between the link gain greatly; And, need interrupt multiaerial system when measure receiving the frequency compensation of link and temperature compensation data in the prior art, not only use inconvenient, and the accuracy of the reception link gain that obtains according to measurement result is low, and the present invention need not be interrupted multiaerial system, can be implemented in frequency compensation and temperature compensation data that line measure to receive link, thereby the accuracy of the reception link gain that obtains according to measurement result has just improved further also; According to receiving RTWP that link gain obtains more accurately also relatively accurately, and RTWP can better reflect the disturbed condition of whole network more accurately.
Embodiment 4
Fig. 4 calculates the device example structure schematic diagram of transmitting chain gain for the present invention, as shown in Figure 4, this device comprises: signal processing module 40, a plurality of power amplifier 41, a plurality of first directional coupler 42, radio-frequency (RF) switch 43, a plurality of signal processor 44, a plurality of 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 is used for calibrating every transmitting chain of many emission chains, and the gain of calculating every transmitting chain;
First directional coupler 42, each signal after being used for amplifying from power amplifier 41 is coupled out a part of signal respectively as power Control and Feedback signal;
Radio-frequency (RF) switch 43 is used for selecting one road power Control and Feedback signal from the multichannel power Control and Feedback signal that a plurality of first directional couplers 42 are coupled out, and feeds back to computing unit 402;
Wherein, each signal processor 44 comprises a circulator and a filter, and circulator is used for the signal after amplifying through power amplifier 41 is isolated, and guarantees this signal one-way flow; Filter, the signal after being used for circulator isolated carries out filtering, so that a part of frequency signal that allows passes through smoothly, and the signal of other a part of frequency is owing to be subjected to bigger inhibition and can not pass through.
Second directional coupler 45, each signal after being used for handling from signal processor 44 is coupled out a part of signal respectively as calibrating signal;
Wherein, this signal processing module 40 can also comprise: signal transmitting unit 400 is used for transmitting through every transmitting chain of many transmitting chains;
Accordingly, power amplifier 41, each the road signal that is used for respectively signal transmitting unit 400 being sent amplifies.
Wherein, this signal processing module 40 can also comprise: adjustment unit is used for according to predetermined threshold value every transmitting chain gain that described computing unit calculates being adjusted, so that every transmitting chain gain reaches predetermined threshold value.
In the embodiment of the invention, second directional coupler is positioned at after the filter, before the antenna,, therefore can reflects more accurately that the signal on the transmitting chain outputs to the actual power of antenna because second directional coupler is very near apart from antenna.
The embodiment of the invention is by after amplifying the process of the signal on every transmitting chain, be coupled out a part of signal as power Control and Feedback signal the signal after amplifying, obtain multichannel power Control and Feedback signal, then with after the Signal Spacing and filtering after amplifying on the transmitting chain, be coupled out a part of signal as calibrating signal, the multichannel calibrating signal that obtains is merged into one tunnel calibrating signal, measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging, again according to the calibrating signal after the feature differentiation merging of the signal on every transmitting chain, and utilize the corresponding transmitting chain of each road calibrating signal calibration close after the differentiation, obtain the relevant peaks range value of every transmitting chain in many emission chains, obtain every transmitting chain gain according to the relevant peaks range value of every transmitting chain and the power Control and Feedback signal of every transmitting chain correspondence at last.Only measure the frequency compensation and the temperature compensation data of the calibrating signal place link after merging in the embodiment of the invention, with respect to prior art, reduced the workload of measuring greatly, saved the time, improved efficiency of equipment.
Further, in embodiments of the present invention, can according to pre-conditioned be to start calibration operation automatically, described pre-conditioned can for: satisfy the default time, when temperature changes, perhaps any one when receiving link gain and changing or the like.Owing to be according to pre-conditioned automatic calibration, so calibration result can not be subjected to cable, measuring instrument and artificial manual influence, thereby improved the accuracy and the consistency of every transmitting chain gain greatly; And, need interrupt multiaerial system when measuring the frequency compensation of transmitting chain and temperature compensation data in the prior art, not only use inconvenient, and the accuracy that gains according to the transmitting chain that measurement result obtains is low, and the present invention need not be interrupted multiaerial system, can be implemented in line and measure the frequency compensation and the temperature compensation data of calibrating signal place link, thereby the accuracy that gains according to the transmitting chain that this measurement result obtains has also just further improved; Because a transmitting chain generally has two frequencies, i.e. two frequencies, in the prior art transmitting chain is calibrated, just once two carrier waves are calibrated, can not accurately measure the little difference of transmitting chain at each carrier gains, and the present invention calibrates after giving every transmitting chain assigned frequency, so just can calibrate with power and control at each carrier wave, can accurately measure the little difference of transmitting chain at each carrier gains, improve the performance of power control, improve gain flatness in the 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 and merge into a system calculating the device of reception link gain and the device of calculating transmitting chain gain, can be among the embodiment 5 with the synthetic processing module of the signal processing module among signal processing module among the embodiment 3 and the embodiment 4, mixer among splitter among the embodiment 3 and the embodiment 4 can be a device, that is to say that mixer can play the effect of signal being closed road and shunt, splitter also can play signal shunt and the effect of closing the road.If in Fig. 5, be called mixer, as shown in Figure 5, when signal flows to the right from the left side of mixer, what this mixer played is effect along separate routes, when signal when the right of mixer flows to the left side, what this mixer played is exactly the effect of closing the road, and those skilled in the art can both understand this, and the present invention repeats no more.
Need to prove, because the device shown in device shown in the embodiment 3 and the embodiment 4 is merged into a system, therefore need increase duplexer in the corresponding place in the system shown in the embodiment 5, for example, at close each root antenna place, a duplexer is set, after mixer closes the road, that is to say on the link before the splitter shunt duplexer is set.The duplexer effect is that the signal on transmitting chain and the reception link is isolated, guarantees to receive link and transmitting chain operate as normal simultaneously.The essence of duplexer is two filters, one is at the filter that receives link, another is the filter at transmitting chain, therefore can transmitting chain and the signal that receives on the link is isolated by duplexer, guarantee to receive link and transmitting chain operate as normal simultaneously.Owing in system shown in Figure 5, increased duplexer, therefore can remove the filter in the signal processor among the embodiment 4.In addition, embodiment 3 is identical with the effect of playing in the system shown in the embodiment 5 with other module or device role among the embodiment 4, repeats no more herein.
The wireless transceiver system of many antennas of the embodiment of the invention can be base station etc.
The embodiment of the invention can reach embodiment 3 and embodiment 4 all effect and purpose, further, after the device shown in embodiment 3 and the embodiment 4 merged, has saved device, has also saved the shared space of a plurality of devices, and is 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 be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (13)
1. one kind is calculated many methods that receive link gain, it is characterized in that, comprising:
With one tunnel calibrating signal demultiplexing calibrating signal, and described multichannel calibrating signal is coupled to many every of receiving in the links respectively receives links;
Measurement is divided into the frequency compensation and the temperature compensation data of described one tunnel calibrating signal place link before the described multichannel calibrating signal;
Described every corresponding reception link of calibrating signal calibration that receives on the link is coupled in utilization, obtains described every relevant peaks range value that receives link;
Obtain the calibration link gain according to described frequency compensation and temperature compensation data, and receive link gain according to described calibration link gain, described every relevant peaks range value and described every of default calibrating signal data field power calculation that receives link.
2. many methods that receive link gain of calculating according to claim 1, it is characterized in that, receive link gain according to described calibration link gain, described every relevant peaks range value and described every of default calibrating signal data field power calculation that receives link, comprising:
G
RX_link *＝(A
peak1 *)
2-G
RX，calibration-P
pn，RX，dBFs
Wherein, A
Peak1 *Be described every relevant peaks range value that receives link, P
Pn, RX, dBFsBe default calibrating signal numeric field power, G
RX, calibrationBe described calibration link gain; G
RX_link *Be described every reception link gain.
3. one kind is calculated the method that many transmitting chains gain, and it 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 and Feedback signal the signal of described every the transmitting chain after amplifying, obtain multichannel power Control and Feedback signal;
The signal of described every the transmitting chain after amplifying is isolated and Filtering Processing, from the signal after the processing of described every transmitting chain, be coupled out a part of signal, obtain the multichannel calibrating signal as calibrating signal;
Described multichannel calibrating signal is merged, and measure the frequency compensation and the temperature compensation data of the calibrating signal place link after the described merging;
According to the signal characteristic on described every transmitting chain, distinguish in the calibrating signal after the described merging from the calibrating signal on every transmitting chain, utilize the corresponding transmitting chain of each road calibrating signal calibration of described differentiation, obtain the relevant peaks range value of described every transmitting chain;
Obtain the calibration link gain according to described frequency compensation and temperature compensation data, and according to described every transmitting chain gain of power calculation of the power Control and Feedback signal of the relevant peaks range value of described calibration link gain, described every transmitting chain, default calibrating signal data field power and every transmitting chain correspondence.
4. the method for many transmitting chain gains of calculating according to claim 3, it is characterized in that, described every transmitting chain gain of power calculation according to the power Control and Feedback signal of the relevant peaks range value of described calibration link gain, described every transmitting chain, default calibrating signal data field power and every transmitting chain correspondence is specially:
G
PC_feedback *＝(A
peak *)
2-G
TX，calibration+P_offset-P
PC_feedback *
Wherein, A
Peak2 *Be the relevant peaks range value of every transmitting chain, P
Pn, TX, dBFsBe default calibrating signal numeric field power, G
TX, calibrationBe the calibration link gain that frequency compensation and temperature compensation data according to measurement obtain, P
PC_feedback *Be the power of the power Control and Feedback signal of every transmitting chain correspondence, G
PC_feedback *It is every transmitting chain gain.
5. according to the method for claim 3 or many transmitting chain gains of 4 described calculating, it is characterized in that described method also comprises:
According to predetermined threshold value every the transmitting chain gain that calculates is adjusted, so that described every transmitting chain gain reaches predetermined threshold value.
6. one kind is calculated many devices that receive link gain, it is characterized in that described device comprises: signal processing module, splitter, a plurality of directional coupler and measurement module, and wherein said signal processing module comprises: alignment unit and computing unit;
Described signal processing module is used for utilizing calibrating signal to receive every reception of link link to many and calibrates, and calculates described every reception link gain;
Described splitter is used for one tunnel calibrating signal demultiplexing calibrating signal, and described multichannel calibrating signal is sent to described a plurality of directional coupler respectively;
Described directional coupler, each the road calibrating signal of multichannel calibrating signal that is used for that described splitter is divided into are coupled to described many every of receiving in the link and receive link, and send to described alignment unit by described every reception link;
Described measurement module is used to measure the frequency compensation and the temperature compensation data that send to described splitter described one tunnel calibrating signal place link before;
Described alignment unit is used to utilize described every corresponding reception link of calibrating signal calibration that receives on the link of receiving, obtains described every relevant peaks range value that receives link;
Described computing unit, be used for obtaining the calibration link gain, and receive link gain according to every relevant peaks range value and described every of default calibrating signal data field power calculation that receives link that described calibration link gain, described alignment unit obtain according to frequency compensation and temperature compensation data that described measurement module is measured.
7. many devices that receive link gain of calculating according to claim 6 is characterized in that described signal processing module also comprises:
Signal transmitting unit is used to send described one tunnel calibrating signal.
8. one kind is calculated the device that many transmitting chains gain, it is characterized in that, described device comprises: signal processing module, a plurality of power amplifier, a plurality of first directional coupler, radio-frequency (RF) switch, a plurality of signal processor, a plurality of second directional coupler, mixer and measurement module, wherein, described signal processing module comprises: alignment unit and computing unit;
Described signal processing module is used for calibrating every transmitting chain of many transmitting chains, and the gain of calculating described every transmitting chain;
Described power amplifier is used for respectively each the road signal on described every transmitting chain being amplified;
Described first directional coupler, each signal after being used for amplifying from described power amplifier is coupled out a part of signal respectively as power Control and Feedback signal;
Described radio-frequency (RF) switch is used for selecting one road power Control and Feedback signal from the multichannel power Control and Feedback signal that described a plurality of first directional couplers are coupled out, and feeds back to described computing unit;
Described signal processor is used for the signal after the described power amplifier amplification is isolated and Filtering Processing;
Described second directional coupler, each signal that is used for after the described signal processor processes is coupled out a part of signal respectively as calibrating signal;
Described mixer be used for the multichannel calibrating signal that described a plurality of second directional couplers are coupled out is merged, and the calibrating signal after will merging sends to described alignment unit;
Described measurement module is used to measure the 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 in the calibrating signal after described mixer merges calibrating signal from described every transmitting chain, utilize the corresponding transmitting chain of distinguishing of each road calibrating signal calibration, obtain the relevant peaks range value of described every transmitting chain;
Described computing unit, be used for obtaining the calibration link gain according to frequency compensation and temperature compensation data that described measurement module is measured, and described every transmitting chain gain of power calculation of the power Control and Feedback signal of every transmitting chain correspondence selecting of relevant peaks range value, default calibrating signal data field power and the described radio-frequency (RF) switch of every the transmitting chain that obtains according to described calibration link gain, described alignment unit.
9. the device of many transmitting chain gains of calculating according to claim 8 is characterized in that described signal processing module also comprises:
Signal transmitting unit is used for transmitting through each bar transmitting chain of described many transmitting chains.
10. according to Claim 8 or the device of many transmitting chains of 9 described calculating gain, it is characterized in that described signal processor comprises:
Circulator is used for each signal after amplifying through described power amplifier is isolated;
Filter is used for each signal after the described circulator isolation is carried out filtering.
11. the device of many transmitting chain gains of calculating according to claim 10 is characterized in that described signal processing module also comprises:
Adjustment unit is used for according to predetermined threshold value every transmitting chain gain that described computing unit calculates being adjusted, so that described every transmitting chain gain reaches predetermined threshold value.
12. the wireless transceiver system of antenna more than a kind, it is characterized in that, described system comprises the device as the device of many receptions of each described calculating of claim 6 to 7 link gain and many transmitting chains gains of each described calculating of claim 8 to 11, also comprise duplexer, be used for the signal on transmitting chain and the reception link isolated.
13. the wireless transceiver system of many antennas as claimed in claim 12 is characterized in that, the wireless transceiver system of described many antennas is the 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 |
|---|---|---|---|
| CN201010212833.6A CN101945417B (en) | 2010-06-28 | 2010-06-28 | Method and device for computing gains of multiple receiving links/transmitting links |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101945417A true CN101945417A (en) | 2011-01-12 |
| CN101945417B CN101945417B (en) | 2014-06-11 |
Family
ID=43437107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101945417B (en) |
| WO (1) | WO2012000345A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000345A1 (en) * | 2010-06-28 | 2012-01-05 | 深圳市华为安捷信电气有限公司 | Method and device for calculating gain of multiple reception links/transmission links |
| 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 |
| WO2012155722A1 (en) * | 2011-08-19 | 2012-11-22 | 中兴通讯股份有限公司 | Power calibration device and method for multiple-output base station |
| 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 |
| 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 |
| CN108111176A (en) * | 2017-12-08 | 2018-06-01 | Tcl移动通信科技（宁波）有限公司 | A kind of double antenna RF power sensing circuit, device and mobile terminal |
| CN109314552A (en) * | 2016-05-13 | 2019-02-05 | 瑞典爱立信有限公司 | For controlling the user device process of uplink beam forming |
| CN111505555A (en) * | 2020-03-26 | 2020-08-07 | 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 |
| CN112272036A (en) * | 2020-12-24 | 2021-01-26 | 深圳市鼎阳科技股份有限公司 | Temperature compensation device and method for radio frequency receiver and radio frequency receiver |
| US10938497B2 (en) | 2016-05-13 | 2021-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| CN113055058A (en) * | 2019-12-27 | 2021-06-29 | 中兴通讯股份有限公司 | Base station, multi-antenna transceiver and control method thereof |
| WO2022068458A1 (en) * | 2020-09-29 | 2022-04-07 | 中兴通讯股份有限公司 | Communication device, control method, base station and computer-readable storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006099530A2 (en) * | 2005-03-11 | 2006-09-21 | Qualcomm Incorporated | Automatic gain control for a wireless receiver |
| CN1881807A (en) * | 2005-05-18 | 2006-12-20 | 辉达公司 | Apparatus and method for in-situ gain calibration of radio frequency devices |
| CN101232314A (en) * | 2008-01-22 | 2008-07-30 | 中兴通讯股份有限公司 | Apparatus and method for correcting TDD intelligent antenna system |
| CN101257331A (en) * | 2008-03-20 | 2008-09-03 | 华为技术有限公司 | Gain automatic correction method and transmitter |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005117286A1 (en) * | 2004-05-31 | 2005-12-08 | Zte Corporation | An calibration apnaratus and methnd for a receiving link of array communication system |
| JP2006005525A (en) * | 2004-06-16 | 2006-01-05 | Nec Corp | Transmission apparatus |
| 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 |
-
2010
- 2010-06-28 CN CN201010212833.6A patent/CN101945417B/en not_active Expired - Fee Related
-
2011
- 2011-05-04 WO PCT/CN2011/073626 patent/WO2012000345A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006099530A2 (en) * | 2005-03-11 | 2006-09-21 | Qualcomm Incorporated | Automatic gain control for a wireless receiver |
| CN1881807A (en) * | 2005-05-18 | 2006-12-20 | 辉达公司 | Apparatus and method for in-situ gain calibration of radio frequency devices |
| 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 |
| CN101232314A (en) * | 2008-01-22 | 2008-07-30 | 中兴通讯股份有限公司 | Apparatus and method for correcting TDD intelligent antenna system |
| CN101257331A (en) * | 2008-03-20 | 2008-09-03 | 华为技术有限公司 | Gain automatic correction method and transmitter |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000345A1 (en) * | 2010-06-28 | 2012-01-05 | 深圳市华为安捷信电气有限公司 | Method and device for calculating gain of multiple reception links/transmission links |
| WO2012155722A1 (en) * | 2011-08-19 | 2012-11-22 | 中兴通讯股份有限公司 | Power calibration device and method for multiple-output base station |
| 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 |
| CN109314552A (en) * | 2016-05-13 | 2019-02-05 | 瑞典爱立信有限公司 | For controlling the user device process of uplink beam forming |
| CN109314552B (en) * | 2016-05-13 | 2022-04-29 | 瑞典爱立信有限公司 | User equipment procedure for controlling uplink beamforming |
| US11929866B2 (en) | 2016-05-13 | 2024-03-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Dormant mode measurement optimization |
| US11652562B2 (en) | 2016-05-13 | 2023-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US10938497B2 (en) | 2016-05-13 | 2021-03-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US11632284B2 (en) | 2016-05-13 | 2023-04-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Dormant mode measurement optimization |
| US11038742B2 (en) | 2016-05-13 | 2021-06-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Dormant mode measurement optimization |
| US11444822B2 (en) | 2016-05-13 | 2022-09-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Procedures to control beamforming |
| US11381445B2 (en) | 2016-05-13 | 2022-07-05 | 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 |
| CN108111176A (en) * | 2017-12-08 | 2018-06-01 | Tcl移动通信科技（宁波）有限公司 | A kind of double antenna RF power sensing circuit, device and mobile terminal |
| US11394472B2 (en) | 2017-12-08 | 2022-07-19 | JRD Communication (Shenzhen) Ltd. | Double-antenna radio frequency power detection circuit and apparatus, and mobile terminal |
| CN113055058A (en) * | 2019-12-27 | 2021-06-29 | 中兴通讯股份有限公司 | Base station, multi-antenna transceiver and control method thereof |
| 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 |
| CN111505555A (en) * | 2020-03-26 | 2020-08-07 | 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 |
| WO2022068458A1 (en) * | 2020-09-29 | 2022-04-07 | 中兴通讯股份有限公司 | Communication device, control method, base station and computer-readable storage medium |
| CN112272036B (en) * | 2020-12-24 | 2021-03-23 | 深圳市鼎阳科技股份有限公司 | Temperature compensation device and method for radio frequency receiver and radio frequency receiver |
| CN112272036A (en) * | 2020-12-24 | 2021-01-26 | 深圳市鼎阳科技股份有限公司 | Temperature compensation device and method for radio frequency receiver and radio frequency receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012000345A1 (en) | 2012-01-05 |
| CN101945417B (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101945417B (en) | Method and device for computing gains of multiple receiving links/transmitting links | |
| EP2756619B1 (en) | Configuration sub-system for telecommunication systems | |
| US9197182B2 (en) | Envelope power supply calibration of a multi-mode radio frequency power amplifier | |
| US9730228B2 (en) | Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit | |
| CN106464392B (en) | RF transceiver front-end module with the improved linearity | |
| CN105933034A (en) | Line loss measurement method and device | |
| JP2001069091A (en) | Booster, monitor, booster-system, control method and monitor method | |
| CA2561584A1 (en) | A modular wide-range transceiver | |
| US11303425B2 (en) | Methods and apparatuses for automatic filter identification | |
| US20160065141A1 (en) | Power amplifier | |
| CN203858360U (en) | Radar signal amplitude and phase consistency calibration system | |
| US10116399B2 (en) | Circuit arrangement for RF loopback | |
| KR20160081124A (en) | Remote apparatus of distributed antenna system | |
| RU2009135265A (en) | METHOD FOR DATA TRANSFER AND MODEM | |
| US7911986B2 (en) | Apparatus and method for measuring bi-directional radio channel having multiple antenna | |
| US11650236B2 (en) | Apparatus and method for measuring voltage standing wave ratio of antenna in wireless communication system | |
| US10536227B2 (en) | Active antenna device and test method therefor | |
| CN111465029A (en) | Dual-channel passive room distribution system and gain adjustment method thereof | |
| CN101753182A (en) | Method for reusing pre-distortion channel and power detection channel and device | |
| KR100834682B1 (en) | Apparatus and method for controlling a transmission power in mobile terminal | |
| CN110138392A (en) | Transmission power control method and device | |
| US6970684B2 (en) | Method for reducing interference in transmitter and transmitter | |
| KR100809511B1 (en) | Cellular repeater system to monitor pim and there of pim monitor method | |
| US8731464B2 (en) | Apparatus and method for minimizing amplifier oscillation in an antenna system | |
| CN112666406A (en) | Method for rapidly testing receiving sensitivity of receiving-transmitting same-frequency communication system antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20160628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |