CN103188022B - A kind of method of testing of Antenna Correlation and system - Google Patents
A kind of method of testing of Antenna Correlation and system Download PDFInfo
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- CN103188022B CN103188022B CN201110461133.5A CN201110461133A CN103188022B CN 103188022 B CN103188022 B CN 103188022B CN 201110461133 A CN201110461133 A CN 201110461133A CN 103188022 B CN103188022 B CN 103188022B
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Abstract
The method of testing and the system that the invention discloses a kind of Antenna Correlation, this system comprises: base station simulator, is used to multiple antenna configuration test parameters of measured terminal, and described test parameter is notified to described measured terminal; Measured terminal, for receiving the test parameter from described base station simulator, and utilizes the test parameter that each antenna is corresponding to send radiofrequency signal on each antenna; Measurement device, the radiofrequency signal sending on each antenna for receiving described measured terminal, amplitude and/or phase place to the radiofrequency signal sending on each antenna are measured; Control appliance, for obtain the measurement result of described amplitude and/or phase place from described measurement device, and calculates Antenna Correlation according to the measurement result of described amplitude and/or phase place. In the embodiment of the present invention, can greatly improve accuracy of measurement and testing efficiency.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method of testing and system of Antenna Correlation.
Background technology
MIMO (Multiple-InputMultiple-Output, multiple-input and multiple-output) system requirements base station withThe antenna system of terminal is made up of multiple antennas; And the MIMO performance of terminal by the correlation of many antennas (Antenna Correlation) determine, Antenna Correlation is relevant with terminal wireless environment of living in the design of terminal antenna.
For Antenna Correlation, existing method of testing comprises: (1) known standard antenna transmitting echo signal,Receive this signal by measured terminal, and the signal receiving is transferred to tester, by measuring, rememberingThe processes such as record, calculating, obtain the coefficient correlation index of Antenna Correlation; (2) in darkroom, construct certainOne specific wireless environment, and then the Antenna Correlation of actual test measured terminal.
Realizing in process of the present invention, inventor finds at least to exist in prior art following problem:
(1) measured terminal need to be transformed; Completing in the process of Antenna Correlation test, need testedTerminal possesses the functions such as transmission, measurement, record, inevitably needs measured terminal to transform.
(2) measured terminal is long as the testing time of receiving equipment, the degree of accuracy is low; Using measured terminal asThe test of receiving equipment is generally the test of measured terminal receiving sensitivity, the method for testing of receiving sensitivityMinimum incoming level while reaching a certain bit error rate for measure measured terminal in certain confidence level situation,This method of testing causes the testing time of receiving sensitivity longer, and testing efficiency is lower.
(3) constructing specific wireless environment can only unilateral investigation Antenna Correlation; Its tool to test environmentBody is arranged and has been equivalent to fix the partial parameters in wireless channel, reduced the flexibility of test macro, nothingMethod is evaluated the Antenna Correlation of measured terminal comprehensively, exactly.
Summary of the invention
The embodiment of the present invention provides a kind of method of testing and system of Antenna Correlation, to improve test accuratelyDegree and testing efficiency.
In order to achieve the above object, the embodiment of the present invention provides a kind of test macro, comprising:
Base station simulator, is used to multiple antenna configuration test parameters of measured terminal, and by described testParameter is notified to described measured terminal;
Measured terminal, for receiving the test parameter from described base station simulator, and utilizes each antenna pairThe test parameter of answering sends radiofrequency signal on each antenna;
Measurement device, the radiofrequency signal sending on each antenna for receiving described measured terminal, to each dayAmplitude and/or the phase place of the radiofrequency signal sending on line are measured;
Control appliance, for obtain the measurement result of described amplitude and/or phase place from described measurement device,And calculate Antenna Correlation according to the measurement result of described amplitude and/or phase place.
The embodiment of the present invention provides a kind of method of testing of Antenna Correlation, comprising:
Base station simulator is multiple antenna configuration test parameters of measured terminal, and described test parameter is logicalKnow to described measured terminal;
Described measured terminal receives the test parameter from described base station simulator, and utilizes each antenna correspondenceTest parameter on each antenna, send radiofrequency signal;
Measurement device receives the radiofrequency signal that described measured terminal sends on each antenna, to sending out on each antennaAmplitude and/or the phase place of the radiofrequency signal of sending are measured;
Control appliance obtains the measurement result of described amplitude and/or phase place from described measurement device, and according toThe measurement result of described amplitude and/or phase place is calculated Antenna Correlation.
Compared with prior art, the embodiment of the present invention at least has the following advantages: by measured terminal is dividedThe radiofrequency signal Jing Guo each antenna not sending is measured, and utilizes this measurement result to calculate antenna phaseGuan Xing, does not need measured terminal to transform, and can weigh comprehensive, complete, exactly testedCorrelation index between the many antennas of terminal, and can greatly improve accuracy of measurement and testing efficiency.
Brief description of the drawings
In order to be illustrated more clearly in technical scheme of the present invention, required making in describing embodiment belowWith accompanying drawing be briefly described, apparently, the accompanying drawing in the following describes is only of the present invention oneA little embodiment, for those of ordinary skill in the art, are not paying under the prerequisite of creative work,Can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of test macro of providing of the embodiment of the present invention one;
Fig. 2 is the method for testing schematic flow sheet of a kind of Antenna Correlation of providing of the embodiment of the present invention two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is carried out clearly and completelyDescribe, obviously, described embodiment is only a part of embodiment of the present invention, instead of wholeEmbodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative laborThe every other embodiment obtaining under moving prerequisite, belongs to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention one provides a kind of test macro for Antenna Correlation is tested, as Fig. 1Shown in, this test macro at least comprises: base station simulator 11, measured terminal 12, measurement device 13 andControl appliance 14; Above-mentioned each equipment is functional unit, can further split or merge, and for example canMeasurement device 13 and control appliance 14 are deployed on same measurement control appliance, in the embodiment of the present inventionRepeat no longer in detail.
In the embodiment of the present invention, measured terminal 12 is positioned at full electric wave OTA darkroom; Base station simulator 11,Measurement device 13 and control appliance 14 are positioned at outside full electric wave OTA darkroom; And measured terminal 12 and baseStand and set up communication link (tool by the communication antenna that is positioned at full electric wave OTA darkroom between simulator 11Body, communication antenna is positioned at full electric wave OTA darkroom, by radio-frequency cable and full electric wave OTA darkroomOuter base station simulator 11 connects, and sets up communication link by eating dishes without rice or wine with measured terminal 12); Measurement is establishedStandby 13 are connected with the reception antenna that is positioned at full electric wave OTA darkroom that (concrete, reception antenna is positioned at entirelyIn electric wave OTA darkroom, be connected with the measurement device 13 outside full electric wave OTA darkroom by radio-frequency cable).
Based on above-mentioned networking situation, the function of the each equipment in this test macro is as follows:
Base station simulator 11, is used to multiple antenna configuration test parameters of measured terminal 12, and will testsParameter is notified to measured terminal 12.
Concrete, base station simulator 11 is specifically for being set up and communicate by letter with measured terminal 12 by communication antennaConnect, and by this communication antenna, test parameter is notified to measured terminal 12.
In the embodiment of the present invention, this test parameter include but not limited to duty that each antenna is corresponding andTransmitting power, the duty that each antenna is corresponding is opening or closed condition; And base station simulator 11Specifically for configuring according to actual needs the corresponding duty of each antenna, the transmitting on measured terminal 12The parameters such as power.
Measured terminal 12, for receiving the test parameter from base station simulator 11, and utilizes each antenna pairThe test parameter of answering sends radiofrequency signal on each antenna.
Concrete, in the time that duty corresponding to antenna is opening, measured terminal 12 is specifically for logicalCross the transmitting power that antenna is corresponding and on antenna, send radiofrequency signal.
In the embodiment of the present invention, (many antennas can in order to possess the wireless device of multiaerial system for measured terminal 12Be defined as respectively antenna 1, antenna 2, antenna 3...... antenna N), and due to measured terminal 12 can with baseThe simulator 11 of standing is set up communication, and sets up and communicate by letter with measurement device 13, and therefore measured terminal 12 also canFor receiving the test parameter from base station simulator 11, and utilize the test parameter that each antenna is correspondingThe radiofrequency signal sending on each antenna can receive by reception antenna by measured equipment 13.
Measurement device 13, the radiofrequency signal sending on each antenna for receiving measured terminal 12, to each dayAmplitude and/or the phase place of the radiofrequency signal sending on line measures that (measurement device 13 inside can arrange measurementInstrument, and measuring instrument is measured for amplitude and/or phase place to radiofrequency signal).
Measurement device 13 sends on each antenna specifically for receive measured terminal 12 by reception antennaRadiofrequency signal.
Control appliance 14, for obtain the measurement result of amplitude and/or phase place from measurement device 13, andCalculate Antenna Correlation according to the measurement result of amplitude and/or phase place.
Wherein, control appliance 14 is for receiving from the amplitude of measurement device 13 and/or the measurement of phase place knotReally, and preserve the measurement result of this amplitude and/or phase place; Afterwards, control appliance 14 is also for tying measuringFruit carries out format analysis processing, then in conjunction with one or more spatial Channel Model parameters, and utilize coefficient correlationFormula calculates the correlation between antenna.
Concrete, based on the measurement result of amplitude and/or phase place, control appliance 14 is for entering measurement resultLine link compensation, (surveys the total data of any two antennas (a, b) after overcompensation afterwardsAmount result, describes as an example of two antennas example) substitution Calculation of correlation factor formula:
By above-mentioned formula discretization, obtain:
The result being calculated by above-mentioned formula is correlation between measured terminal 12 antenna a and antenna bCoefficient correlation; Wherein, the space that P θ (m, n) and P φ (m, n) are defined by standardization bodyChannel model is determined; The implication of X, θ, E, m, n, P, φ is same as the prior art, the present inventionIn embodiment, repeat no more.
Certainly, be not limited in actual applications and use above-mentioned formula to calculate Antenna Correlation, appointTheory and formula that what carries out relevance evaluation all can be applicable to the embodiment of the present invention, do not repeat them here.
In the embodiment of the present invention, control appliance 14 also for according to test script to except measured terminal 12 withOuter other equipment (as base station simulator 11, measurement device 13) carry out synchronous and accurate control.
Concrete, control appliance 14 is used to indicate base station simulator 11 test parameter was notified to tested endEnd 12; And, be used to indicate measurement device 13 and receive the radio frequency that measured terminal 12 sends on each antennaSignal.
It should be noted that in order to obtain comprehensive, the complete information of measured terminal 12 multiaerial systems, needTo in full electric wave OTA darkroom, carry out the test data collection work of three-dimensional to measured terminal 12.Therefore, as shown in Figure 1, this test macro also comprises the turntable controller being positioned at outside full electric wave OTA darkroom15 and be positioned at the turntable (for three-dimensional turntable) in full electric wave OTA darkroom, and measured terminal 12 is positioned at and turnsOn platform.
Based on this, control appliance 14 is also used to indicate turntable controller 15 and controls turntable arrival assigned address;Arrive assigned address by turntable controller 15 according to the instruction control turntable of control appliance 14, and by being positioned atMeasured terminal 12 on turntable utilizes the test parameter that each antenna is corresponding to send out on each antenna on assigned addressSend radiofrequency signal.
Further, in order to realize synchronous and accurate control, control appliance 14 is used to indicate turntable controller15 control turntable arrives assigned address, is turned according to the instruction control of control appliance 14 by turntable controller 15Platform arrives assigned address; And be used to indicate base station simulator 11 test parameter is notified to measured terminal 12,By base station simulator 11, test parameter is notified to measured terminal 12 and (required measured terminal 12 all the time withLarge transmitting power sends radiofrequency signal); And, be used to indicate measurement device 13 and receive measured terminal 12 and existThe radiofrequency signal sending on each antenna, receives measured terminal 12 by measurement device 13 by reception antenna and existsThe radiofrequency signal sending on each antenna, the measurement of the line amplitude of going forward side by side and/or phase place.
In the embodiment of the present invention, for multiple antennas of measured terminal 12, concrete: base station simulator11 under send instructions or by the hardware exchange of measured terminal 12, measured terminal 12 be configured such that to useAntenna 1, as transmitting antenna, cuts out other antenna of measured terminal 12 simultaneously, by said process, byControl appliance 14 obtains the amplitude of antenna 1 and/or the measurement result of phase place; Afterwards, base station simulator 11Under being used for, send instructions or by the hardware exchange of measured terminal 12, measured terminal 12 be configured such that with skyLine n (2≤n≤N), as transmitting antenna, closes other antenna of measured terminal 12, by upper simultaneouslyState process, obtain the amplitude of antenna n and/or the measurement result of phase place by control appliance 14, until complete completeThe test of the N of portion root antenna; Afterwards, control appliance 14 can be for according to the amplitude of each antenna and/or phaseThe measurement result of position is calculated Antenna Correlation.
In the embodiment of the present invention, for multiple measuring positions of measured terminal 12, for investigate tested end comprehensivelyWhole radiofrequency signals of end 12 transmittings need to be carried out measured terminal 12 radiofrequency signals in three dimensionsGather and measure; Concrete, control appliance 14 under send instructions to turntable controller 15, turntable controlDevice 15 controls turntable and rotates to the next position, and obtains each antenna by control appliance 14 on this positionThe measurement result of amplitude and/or phase place; Until complete all positions that need test, complete collection testedThe emission characteristics of terminal 12 in three dimensions, thus make the control appliance 14 can be for according to each dayThe measurement result of line corresponding amplitude and/or phase place on each position is calculated Antenna Correlation.
In sum, in the embodiment of the present invention, by measured terminal is sent through each antenna respectivelyRadiofrequency signal measure, and utilize this measurement result to calculate Antenna Correlation, do not need tested endEnd is transformed, and can weigh comprehensive, complete, exactly being correlated with between the many antennas of measured terminalProperty index, and can greatly improve accuracy of measurement and testing efficiency.
Concrete, in the embodiment of the present invention, using measured terminal as transmitter, measured terminal only needs and baseThe simulator of standing is set up communication link, carries out proper communication, therefore, carrying out in test process, does not needTo transform measured terminal and (not need measured terminal to carry out the transformation of chip, radio frequency etc., meetThe terminal that possesses many antenna transmissions function that communication protocol requires all can be used), ensure the accurate of test resultProperty and fairness, can complete the calculating of correlation between each antenna of multi-antenna terminal accurately and efficiently.
The dependence test result that the embodiment of the present invention proposes is not only applicable to the correlation of the up transmitting of terminalInvestigate, the correlation that also can be used for the descending reception of terminal is investigated; And measured terminal as transmitter (Under emission state, complete test), as receiving equipment, can significantly improve measurement with respect to measured terminalAccuracy and testing efficiency, with using the measured terminal receiving sensitivity recording as Calculation of correlation factorParameter is compared, and can greatly improve accuracy of measurement and testing efficiency.
In the embodiment of the present invention, do not need to construct specific wireless environment, but use standardization body's definitionSpatial Channel Model as the parameter of correlation calculations, therefore method of testing is more accurately, flexibly.
Embodiment bis-
Based on the inventive concept same with said system, in the embodiment of the present invention two, also provide a kind of antennaThe method of testing of correlation, for Antenna Correlation is tested, the method is applied to and at least comprises baseStand in the test macro of simulator, measured terminal, measurement device and control appliance, above-mentioned each equipment is meritEnergy unit, can further split or merge, for example, measurement device and control appliance can be deployed inOn same measurement control appliance, in the embodiment of the present invention, repeat no more.
In the embodiment of the present invention, measured terminal is positioned at full electric wave OTA darkroom; Base station simulator, measurementEquipment and control appliance are positioned at outside full electric wave OTA darkroom; And logical between measured terminal and base station simulatorCrossing the communication antenna that is positioned at full electric wave OTA darkroom sets up communication link (concrete, communication antenna is positioned atIn full electric wave OTA darkroom, be connected with the base station simulator outside full electric wave OTA darkroom by radio-frequency cable,And set up communication link by eating dishes without rice or wine with measured terminal); Measurement device be positioned at full electric wave OTA darkroomReception antenna connect (concrete, reception antenna is positioned at full electric wave OTA darkroom, passes through radio-frequency cableBe connected with the measurement device outside full electric wave OTA darkroom).
Based on above-mentioned networking situation, as shown in Figure 2, the method comprises the following steps:
Step 201, multiple antenna configuration test parameters that base station simulator is measured terminal, and will test ginsengNumber notice is to measured terminal.
Concrete, base station simulator can establish a communications link by communication antenna and measured terminal, and logicalCrossing this communication antenna notifies test parameter to measured terminal.
In the embodiment of the present invention, this test parameter include but not limited to duty that each antenna is corresponding andTransmitting power, the duty that each antenna is corresponding is opening or closed condition; And base station simulator canConfigure according to actual needs the parameter such as the corresponding duty of each antenna, transmitting power of measured terminal.
It should be noted that before carrying out this step and before carrying out measuring process, need to initializeTest macro, comprises the normal startup of base station simulator and measurement device and correctly configures initial parameter etc.Process; Completing after test preparation, start to test, and carry out this step.
Step 202, measured terminal receives the test parameter from base station simulator, and utilizes each antenna correspondenceTest parameter on each antenna, send radiofrequency signal.
Concrete, in the time that duty corresponding to antenna is opening, measured terminal is by antenna correspondenceTransmitting power on antenna, send radiofrequency signal.
In the embodiment of the present invention, measured terminal is that (many antennas can divide the wireless device that possesses multiaerial systemBe not defined as antenna 1, antenna 2, antenna 3...... antenna N), and because measured terminal can be simulated with base stationDevice is set up communication, and sets up and communicate by letter with measurement device, and therefore measured terminal can receive from base stationThe test parameter of simulator, and the radio frequency that utilizes test parameter that each antenna is corresponding to send on each antennaSignal can receive by reception antenna by measured equipment.
Step 203, measurement device receives the radiofrequency signal that measured terminal sends on each antenna, to each antennaAmplitude and/or the phase place of the radiofrequency signal of upper transmission measure (measurement device inside can arrange measuring instrument,And the amplitude to radiofrequency signal and/or phase place are measured by measuring instrument).
Concrete, measurement device can receive penetrating that measured terminal sends on each antenna by reception antennaFrequently signal.
Step 204, control appliance obtains the measurement result of amplitude and/or phase place root from measurement deviceMeasurement result according to amplitude and/or phase place is calculated Antenna Correlation.
Wherein, control appliance can receive from the amplitude of measurement device and/or the measurement result of phase place, and protectsDeposit the measurement result of this amplitude and/or phase place; Afterwards, control appliance can carry out format analysis processing to measurement result,Again in conjunction with one or more spatial Channel Model parameters, and utilize formula of correlation coefficient to calculate antennaBetween correlation.
Concrete, based on the measurement result of amplitude and/or phase place, first control appliance carries out measurement resultLink compensation, (measures the total data of any two antennas (a, b) after overcompensation afterwardsAs a result, describe as an example of two antennas example) substitution Calculation of correlation factor formula:
By above-mentioned formula discretization, obtain:
The result being calculated by above-mentioned formula is correlation between measured terminal antenna a and antenna bCoefficient correlation; Wherein, believe in the space that P θ (m, n) and P φ (m, n) are defined by standardization bodyRoad model is determined; The implication of X, θ, E, m, n, P, φ is same as the prior art, and the present invention is realExecute in example and repeat no more; Certainly, be not limited in actual applications and use above-mentioned formula to calculate skyLine correlation, any theory and formula that carries out relevance evaluation all can be applicable to the embodiment of the present invention,This repeats no more.
In the embodiment of the present invention, control appliance can also be according to test script to its except measured terminalHis equipment (as base station simulator, measurement device) carries out synchronous and accurate control.
Concrete, control appliance instruction base station simulator notifies test parameter to measured terminal, by base stationSimulator is notified test parameter to measured terminal according to the instruction of control appliance; And instruction is measured and is establishedStandby receive the radiofrequency signal that measured terminal sends on each antenna, by measurement device according to the finger of control applianceShow and receive the radiofrequency signal that measured terminal sends on each antenna.
It should be noted that in order to obtain the information that measured terminal multiaerial system is comprehensive, complete, needIn full electric wave OTA darkroom, measured terminal is carried out to the test data collection work of three-dimensional. Therefore,This test macro also comprises and is positioned at the turntable controller outside full electric wave OTA darkroom and is positioned at full electric wave OTATurntable (being three-dimensional turntable) in darkroom, and measured terminal is positioned on turntable.
Based on this, control appliance also needs to indicate turntable controller control turntable to arrive assigned address, by turningPlatform controller arrives assigned address according to the instruction control turntable of control appliance, and by the quilt being positioned on turntableSurvey terminal utilizes the test parameter that each antenna is corresponding to send radiofrequency signal on each antenna on assigned address.
Further, in order to realize synchronous and accurate control, the control of control appliance instruction turntable controller turnsPlatform arrives assigned address, arrives assigned address by turntable controller according to the instruction control turntable of control appliance;And instruction base station simulator test parameter is notified to measured terminal, by base station simulator by test parameterNotice is to measured terminal (requiring measured terminal to send radiofrequency signal with maximum transmission power all the time); And,Instruction measurement device receives the radiofrequency signal that sends on each antenna of measured terminal, by measurement device by connecingReceive the radiofrequency signal that antenna reception measured terminal sends on each antenna, the survey of the line amplitude of going forward side by side and/or phase placeAmount.
In the embodiment of the present invention, for multiple antennas of measured terminal, concrete: under base station simulatorSend instructions or by the hardware exchange of measured terminal, measured terminal be configured such that with antenna 1 as transmittingAntenna cuts out other antenna of measured terminal simultaneously, by said process, obtains antenna 1 by control applianceAmplitude and/or the measurement result of phase place; Afterwards, under base station simulator, send instructions or by measured terminalHardware exchange, is configured such that measured terminal to use antenna n (2≤n≤N) as transmitting antenna, closes simultaneouslyClose other antenna of measured terminal, by said process, by control appliance obtain antenna n amplitude and/orThe measurement result of phase place, until complete the test of whole N root antennas; Afterwards, control appliance can basisThe amplitude of each antenna and/or the measurement result of phase place are calculated Antenna Correlation.
In the embodiment of the present invention, for multiple measuring positions of measured terminal, for investigate measured terminal comprehensivelyWhole radiofrequency signals of transmitting need to be carried out collection and the survey of measured terminal radiofrequency signal in three dimensionsAmount; Concrete, under control appliance, sending instructions to turntable controller, turntable controller control turntable rotates extremelyThe next position, and obtain the amplitude of each antenna and/or the measurement result of phase place by control appliance on this position;Until complete all positions that need test, complete and gather the transmitting spy of measured terminal in three dimensionsProperty, thus make the control appliance can be according to each antenna corresponding amplitude and/or phase place on each positionMeasurement result calculate Antenna Correlation.
In sum, in the embodiment of the present invention, by measured terminal is sent through each antenna respectivelyRadiofrequency signal measure, and utilize this measurement result to calculate Antenna Correlation, do not need tested endEnd is transformed, and can weigh comprehensive, complete, exactly being correlated with between the many antennas of measured terminalProperty index, and can greatly improve accuracy of measurement and testing efficiency.
Concrete, in the embodiment of the present invention, using measured terminal as transmitter, measured terminal only needs and baseThe simulator of standing is set up communication link, carries out proper communication, therefore, carrying out in test process, does not needTo transform measured terminal and (not need measured terminal to carry out the transformation of chip, radio frequency etc., meetThe terminal that possesses many antenna transmissions function that communication protocol requires all can be used), ensure the accurate of test resultProperty and fairness, can complete the calculating of correlation between each antenna of multi-antenna terminal accurately and efficiently.
The dependence test result that the embodiment of the present invention proposes is not only applicable to the correlation of the up transmitting of terminalInvestigate, the correlation that also can be used for the descending reception of terminal is investigated; And measured terminal as transmitter (Under emission state, complete test), as receiving equipment, can significantly improve measurement with respect to measured terminalAccuracy and testing efficiency, with using the measured terminal receiving sensitivity recording as Calculation of correlation factorParameter is compared, and can greatly improve accuracy of measurement and testing efficiency.
In the embodiment of the present invention, do not need to construct specific wireless environment, but use standardization body's definitionSpatial Channel Model as the parameter of correlation calculations, therefore method of testing is more accurately, flexibly.
Through the above description of the embodiments, those skilled in the art can be well understood to thisThe mode that invention can add essential general hardware platform by software realizes, can certainly be by hardPart, but in a lot of situation, the former is better embodiment. Based on such understanding, skill of the present inventionThe part that art scheme contributes to prior art in essence in other words can be with the form body of software productReveal to come, this computer software product is stored in a storage medium, comprise some instructions with so thatComputer equipment (can be personal computer, server, or the network equipment etc.) is carried outMethod described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, in accompanying drawingModule or flow process might not be implement the present invention necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can retouch according to embodimentState in the device that is distributed in embodiment, also can carry out respective change and be positioned at and be different from the present embodimentOne or more devices in. The module of above-described embodiment can be merged into a module, also can enterOne step splits into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited toThis, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a test macro, is characterized in that, comprising:
Base station simulator, is used to multiple antenna configuration test parameters of measured terminal, and by described testParameter is notified to described measured terminal;
Measured terminal, for receiving the test parameter from described base station simulator, and utilizes each antenna pairThe test parameter of answering sends radiofrequency signal on each antenna;
Measurement device, the radiofrequency signal sending on each antenna for receiving described measured terminal, to each dayAmplitude and/or the phase place of the radiofrequency signal sending on line are measured;
Control appliance, for obtain the measurement result of described amplitude and/or phase place from described measurement device,And calculate Antenna Correlation according to the measurement result of described amplitude and/or phase place;
Wherein, described test parameter comprises duty and the transmitting power that each antenna is corresponding, each antennaCorresponding duty is opening or closed condition;
Described measured terminal, specifically in the time that duty corresponding to antenna is opening, by instituteState the transmitting power that antenna is corresponding and send radiofrequency signal on described antenna.
2. the system as claimed in claim 1, is characterized in that, described measured terminal is positioned at full electric waveIn OTA darkroom;
Described base station simulator, described measurement device and described control appliance are positioned at described full electric wave OTAOutside darkroom;
Between described measured terminal and described base station simulator by being positioned at described full electric wave OTA darkroomCommunication antenna is set up communication link;
Described measurement device is connected with the reception antenna that is positioned at described full electric wave OTA darkroom.
3. system as claimed in claim 2, is characterized in that,
Described base station simulator, specifically for notifying described test parameter to institute by described communication antennaState measured terminal;
Described measurement device, specifically for receiving described measured terminal at each antenna by described reception antennaThe radiofrequency signal of upper transmission.
4. the system as claimed in claim 1, is characterized in that,
Described control appliance, be also used to indicate described base station simulator by described test parameter notify to described inMeasured terminal; And,
Indicate described measurement device to receive the radiofrequency signal that described measured terminal sends on each antenna.
5. the system as described in claim 1 or 4, is characterized in that, also comprises and is positioned at full electric wave OTATurntable controller outside darkroom and be positioned at the turntable in described full electric wave OTA darkroom, and described tested endEnd is positioned on described turntable;
Described control appliance, is also used to indicate turntable described in described turntable controller control and arrives assigned address;
Described turntable controller, arrives assigned address for control described turntable according to described instruction, by positionDescribed measured terminal on described turntable utilizes the test parameter that each antenna is corresponding on described assigned addressOn each antenna, send radiofrequency signal.
6. a method of testing for Antenna Correlation, is characterized in that, comprising:
Base station simulator is multiple antenna configuration test parameters of measured terminal, and described test parameter is logicalKnow to described measured terminal;
Described measured terminal receives the test parameter from described base station simulator, and utilizes each antenna correspondenceTest parameter on each antenna, send radiofrequency signal;
Measurement device receives the radiofrequency signal that described measured terminal sends on each antenna, to sending out on each antennaAmplitude and/or the phase place of the radiofrequency signal of sending are measured;
Control appliance obtains the measurement result of described amplitude and/or phase place from described measurement device, and according toThe measurement result of described amplitude and/or phase place is calculated Antenna Correlation;
Wherein, described test parameter comprises duty and the transmitting power that each antenna is corresponding, and each dayThe duty that line is corresponding is opening or closed condition;
Described measured terminal utilizes the test parameter that each antenna is corresponding to send radiofrequency signal on each antenna, bagDraw together: described measured terminal is in the time that duty corresponding to antenna is opening, by described antenna correspondenceTransmitting power on described antenna, send radiofrequency signal.
7. method as claimed in claim 6, is characterized in that, described measured terminal is positioned at full electric waveIn OTA darkroom;
Described base station simulator, described measurement device and described control appliance are positioned at described full electric wave OTAOutside darkroom;
Between described measured terminal and described base station simulator by being positioned at described full electric wave OTA darkroomCommunication antenna is set up communication link;
Described measurement device is connected with the reception antenna that is positioned at described full electric wave OTA darkroom.
8. method as claimed in claim 7, is characterized in that,
Described base station simulator notifies described test parameter to described measured terminal, comprising: described base stationSimulator is notified described test parameter to described measured terminal by described communication antenna;
Described measurement device receives the radiofrequency signal that described measured terminal sends on each antenna, comprising: instituteState measurement device and receive by described reception antenna the radio frequency letter that described measured terminal sends on each antennaNumber.
9. method as claimed in claim 6, is characterized in that, described method further comprises:
Described control appliance indicates described base station simulator that described test parameter was notified to described tested endEnd, by described base station simulator according to the instruction of described control appliance by described test parameter notify to described inMeasured terminal; And,
Described control appliance indicates described measurement device to receive penetrating that described measured terminal sends on each antennaFrequently signal, receives described measured terminal at each day by described measurement device according to the instruction of described control applianceThe radiofrequency signal sending on line.
10. the method as described in claim 6 or 9, is characterized in that, described method further comprises:
Described control appliance instruction turntable controller control turntable arrives assigned address, described turntable controllerBe positioned at outside full electric wave OTA darkroom, described turntable is positioned at described full electric wave OTA darkroom, and described quiltSurveying terminal is positioned on described turntable;
Described turntable controller is controlled described turntable according to the instruction of described control appliance and is arrived assigned address,On described assigned address, utilize by the described measured terminal being positioned on described turntable the test that each antenna is correspondingParameter sends radiofrequency signal on each antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110461133.5A CN103188022B (en) | 2011-12-30 | 2011-12-30 | A kind of method of testing of Antenna Correlation and system |
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| CN201110461133.5A CN103188022B (en) | 2011-12-30 | 2011-12-30 | A kind of method of testing of Antenna Correlation and system |
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| Publication Number | Publication Date |
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| CN103188022A CN103188022A (en) | 2013-07-03 |
| CN103188022B true CN103188022B (en) | 2016-05-25 |
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| CN103414526B (en) * | 2013-07-24 | 2016-08-10 | 福建星网锐捷通讯股份有限公司 | The test system of a kind of wireless radio frequency index and method of testing |
| CN104215855A (en) * | 2014-09-09 | 2014-12-17 | 深圳市佳沃通信技术有限公司 | Measuring distance adjustable OTA (over-the-air) test darkroom |
| US10826630B2 (en) * | 2015-01-30 | 2020-11-03 | Rohde & Schwarz Gmbh & Co. Kg | Measuring device, system and method for wirelessly measuring radiation patterns |
| WO2016169001A1 (en) * | 2015-04-21 | 2016-10-27 | 陈奕铭 | Miniaturized ota test system having plurality of probes |
| CN105743553A (en) * | 2016-01-26 | 2016-07-06 | 北京邮电大学 | Uplink performance test system and method for multi-antenna mobile terminal |
| CN105933075A (en) * | 2016-06-21 | 2016-09-07 | 工业和信息化部电信研究院 | Terminal testing system and method |
| CN108111232B (en) * | 2018-03-01 | 2023-06-20 | 上海鸿洛通信电子有限公司 | Test darkroom and test system |
| CN108802506A (en) * | 2018-06-20 | 2018-11-13 | Oppo广东移动通信有限公司 | The Antenna testing system and test method of terminal device |
| EP3699612A1 (en) * | 2019-02-19 | 2020-08-26 | Rohde & Schwarz GmbH & Co. KG | Method for performing a radiated two-stage method measurement as well as measurement setup |
| CN111917493B (en) * | 2020-08-10 | 2022-06-21 | 展讯通信（上海）有限公司 | Antenna testing method, device and storage medium |
| CN113109634B (en) * | 2021-05-07 | 2023-07-21 | 北京和德宇航技术有限公司 | Antenna test method, device, terminal equipment, antenna test system and medium |
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