CN205490613U - LTEFDD automatic test system - Google Patents
LTEFDD automatic test system Download PDFInfo
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- CN205490613U CN205490613U CN201620253816.XU CN201620253816U CN205490613U CN 205490613 U CN205490613 U CN 205490613U CN 201620253816 U CN201620253816 U CN 201620253816U CN 205490613 U CN205490613 U CN 205490613U
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- 238000012360 testing method Methods 0.000 title claims abstract description 135
- 238000001228 spectrum Methods 0.000 claims description 28
- 230000008030 elimination Effects 0.000 claims description 18
- 238000003379 elimination reaction Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000003595 spectral effect Effects 0.000 description 1
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Abstract
The utility model discloses LTEFDD automatic test system is including the frequency spectrograph, combine and survey the appearance, the signal source, radio frequency switching control case, industry control computer and measured piece, the frequency spectrograph, combine and survey the appearance, signal source and the integration of radio frequency switching control case are on the rack, the frequency spectrograph, combine survey appearance and signal source and pass through the series connection of GPIB control line, radio frequency switching control case passes through the USB control line and links to each other with the industry control computer, the frequency spectrograph, comprehensive survey appearance and signal source are passed through GPIB commentaries on classics USB control line with the industry control computer and are linked to each other, the frequency spectrograph, it passes through radio frequency cable and radio frequency switching control case rear panel to correspond the port continuous combine to survey appearance and signal source input port. The utility model discloses can realize operating with mutual the test, operating instrument setting parameters reads the instrument data, and the analysis contrast shows data, and the storage result generates report etc.. To appointed equipment environment, realize the intelligent piece that awaits measuring, the design optimization detection algorithm of detecting to conduct the survey, raise the efficiency.
Description
Technical field
This utility model relates to a kind of LTE FDD Auto-Test System.
Background technology
Current existing LTE FDD mobile terminal test Subsystem client carries out detection to be needed manually to arrange the parameter of instrument one by one on meter key, needs to carry out substantial amounts of circulation operation, reads record result, and canonical parameter comparison, and whether qualified record one by one.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of LTE FDD Auto-Test System.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is:
LTE FDD Auto-Test System, include: audiofrequency spectrometer, comprehensive test instrument, signal source, radio frequency switching control case, industrial computer and measured piece, audiofrequency spectrometer, comprehensive test instrument, signal source and radio frequency switching control case are integrated on rack, audiofrequency spectrometer, comprehensive test instrument and signal source are connected by GPIB control line, radio frequency switching control case is connected with industrial computer by USB control line, audiofrequency spectrometer, comprehensive test instrument turns USB control line with industrial computer by GPIB with signal source and is connected, audiofrequency spectrometer, comprehensive test instrument is connected with radio frequency switching control case rear board corresponding ports by RF cable with signal source input port.
Described spectrum analyzer is N9030A signal analyzer.
Described comprehensive tester is CTP3110.
Described signal generator is N5182B.
Described radio frequency switching control case includes radio frequency switching control case TH2900F-1 and radio frequency switching control case TH2900F-2 two parts.
Described radio frequency switching control case TH2900F-1 is connected by RF cable with radio frequency switching control case TH2900F-2.
Described radio frequency switching control case includes 3dB attenuator, power splitter, bonder, Band1 band elimination filter, Band3 band elimination filter, Band7 band elimination filter, low pass filter, high pass filter, electromagnetic switch, isolator, UE terminal 1 and UE terminal 2; wherein: input signal amplitude is decayed by described 3dB attenuator; guarantee that instrument, without departing from instrument range, is played a protective role by incoming signal level；
Input signal is separated into two-way by described power splitter, and a road is connected with comprehensive test instrument, and road unit after filtering is connected with audiofrequency spectrometer；
Input signal and interference signal are produced intermodulation product and are entered into spectrum analyzer and test by described bonder；
Described Band1 band elimination filter enters spectrum analyzer after significantly decaying Band1 main peak signal and carries out spuious test；
Described Band3 band elimination filter enters spectrum analyzer after significantly decaying Band3 main peak signal and carries out spuious test；
Described Band7 band elimination filter enters spectrum analyzer after significantly decaying Band7 main peak signal and carries out spuious test；
9kHz-1000MHz is filtered by described low pass filter, enters spectrum analyzer and carry out spuious test after filtering；
3000MHz-12750MHz is filtered by described high pass filter, enters spectrum analyzer and carry out spuious test after filtering；
Described UE terminal 1 provides radio-frequency input signals with UE terminal 2 for measured piece.
The method of testing of LTE FDD Auto-Test System, comprises the following steps:
1. test event is created；
2. fill in public information and load calibration result file；
3. create and import, deriving test plan；
4. amendment and configuration parameter；
5. instrument is initialized；
6. equipment under test is connected；
7. test is performed；
8. the test data that after having tested, click " test result " has been inquired about and the repetition measurement work to wherein test item；
9. test terminates；
10. report is generated.
This utility model have the advantage that with effect is:
This utility model LTE FDD mobile terminal test subsystem can realize automatically carrying out test operating and mutual, and including Back ground Information record, instrument is corrected, error compensation, control instrument arranges parameter, reads instrumented data, analyze contrast video data, store result, generate report etc..To the facility environment specified, it is achieved intellectualized detection part to be measured, design optimization detection algorithm, parallel detection, improves efficiency.
Accompanying drawing explanation
Fig. 1 is this utility model LTE FDD Auto-Test System structure principle chart；
Fig. 2 is this utility model radio frequency switching control case TH2900F-1 structure principle chart；
Fig. 3 is this utility model radio frequency switching control case TH2900F-2 structure principle chart；
Fig. 4 is the method for testing flow chart of this utility model LTE FDD Auto-Test System.
Detailed description of the invention
As shown in Figure 1, this utility model LTE FDD Auto-Test System, include: audiofrequency spectrometer, comprehensive test instrument, signal source, radio frequency switching control case, industrial computer and measured piece, audiofrequency spectrometer, comprehensive test instrument, signal source and radio frequency switching control case are integrated on rack, audiofrequency spectrometer, comprehensive test instrument and signal source are connected by GPIB control line, radio frequency switching control case is connected with industrial computer by USB control line, audiofrequency spectrometer, comprehensive test instrument turns USB control line with industrial computer by GPIB with signal source and is connected, audiofrequency spectrometer, comprehensive test instrument is connected with radio frequency switching control case rear board corresponding ports by RF cable with signal source input port.
Spectrum analyzer major function has been to launch testing intermodulation product in intermodulation testing project, and reads test result；Complete conduction stray and launch project testing, scan piecemeal according to the frequency range of standard-required.
Signal generator major function provides interference signal for launching intermodulation testing project, launches signal with measured piece and produces intermodulation product.
Comprehensive tester major function has been the test of 17 test events of Type Approval test request, including maximum transmission power, peak power rollback (MPR), configuration UE launches power, minimum output power, launch and close power, general transmitting ON/OFF time template, absolute power controls tolerance limit, relative power controls tolerance limit, general power controls tolerance limit, frequency error, Error Vector Magnitude (EVM), carrier leak, in band spuious (unallocated Resource Block), EVM equalizer frequency spectrum flatness, occupied bandwidth, spectral emission template, Adjacent Carrier Leakage rejection ratio (ACLR)；
The rf inputs mouth of each instrument is connected to the corresponding output port of radio frequency switch unit by radio frequency switch unit, input signal for measured piece provides radio-frequency path switching, guarantee the radiofrequency signal of measured piece is input to different instrument, realize different path by the internal electromagnetic switch of industrial computer transmitting control commands switching and switch.
Described spectrum analyzer is N9030A signal analyzer.
Described comprehensive tester is CTP3110.
Described signal generator is N5182B.
As shown in Figure 2,3, described radio frequency switching control case includes radio frequency switching control case TH2900F-1 and radio frequency switching control case TH2900F-2 two parts.
Described radio frequency switching control case TH2900F-1 is connected by RF cable with radio frequency switching control case TH2900F-2.
Described radio frequency switching control case includes 3dB attenuator, power splitter, bonder, Band1 band elimination filter, Band3 band elimination filter, Band7 band elimination filter, low pass filter, high pass filter, electromagnetic switch, isolator, UE terminal 1 and UE terminal 2; wherein: input signal amplitude is decayed by described 3dB attenuator; guarantee that instrument, without departing from instrument range, is played a protective role by incoming signal level.
Input signal is separated into two-way by described power splitter, one tunnel is connected with comprehensive test instrument, one tunnel unit after filtering is connected with audiofrequency spectrometer, and it act as by the operation of comprehensive test instrument is changed the frequency of input signal, characteristics of signals, meets the test launching intermodulation with conduction stray.
Input signal and interference signal are produced intermodulation product and are entered into spectrum analyzer and test by described bonder.
Described Band1 band elimination filter is to Band1(1920MHz-1980MHz) main peak signal significantly decay after enter spectrum analyzer carry out spuious test, its primarily serve the purpose of improve spectrum analyzer dynamic range, improve conduction stray test accuracy.
Described Band3 band elimination filter is to Band3(1710MHz-1785MHz) main peak signal significantly decay after enter spectrum analyzer carry out spuious test, its primarily serve the purpose of improve spectrum analyzer dynamic range, improve conduction stray test accuracy.；
Described Band7 band elimination filter is to Band7(2500MHz-2570MHz) main peak signal significantly decay after enter spectrum analyzer carry out spuious test, its primarily serve the purpose of improve spectrum analyzer dynamic range, improve conduction stray test accuracy.；
9kHz-1000MHz is filtered by described low pass filter, enters spectrum analyzer and carry out spuious test after filtering, and it primarily serves the purpose of the purity of frequency spectrum guaranteed in the range of 9kHz-1000MHz, improves the accuracy of conduction stray test.；
3000MHz-12750MHz is filtered by described high pass filter, enters spectrum analyzer and carry out spuious test after filtering, and it primarily serves the purpose of the purity of frequency spectrum guaranteed in the range of 3000MHz-12750MHz, improves the accuracy of conduction stray test.；
Described electromagnetic switch (S1 in Fig. 2, S2, S3): switched by the control realization difference path of industrial computer.
Described isolator realizes one-way passage, and it primarily serves the purpose of and prevents input signal from passing through front end, coupled end entering signal source, plays the effect of protection signal source front end.
Described UE terminal 1 provides radio-frequency input signals with UE terminal 2 for measured piece.
As shown in Figure 4, the method for testing of this utility model LTE FDD Auto-Test System, comprise the following steps:
Start inspection software: after validated user (system manager and operator) correctly logs in, enter the test of LTE FDD digital terminal automatic checkout system soft.Create test event: fill in public information and load calibration result file.Create and import, derive test plan: after creating project information, can realize current test event is used by clicking on " the test plan information " of left-hand column the setting of test plan.Create test plan: click on newly-built plan button, in ejecting test plan menu, choose click after current planning comprises test event preserve, complete newly-built test plan.Importing and derive test plan: newly-built or amended test plan is clicked on " deriving plan " and saved as test project documentation at specified path, follow-up new test event needs to click on " importing plan " button during identical test plan and directly invokes the test plan derived before.Amendment and configuration parameter (test channel, bandwidth, RB quantity, modulation system) the newly-built test plan with importing, all can be tested the test item shown in the works and configure the corresponding test parameter of this test item in current planning by double-click.Perform test-schedule: click on START button.Select test prototype and test plan.Queued for log-on.Proceed by test.
Test process: can complete item by item currently to test the test item chosen in the works according to order from top to down after starting test；Software " test output information " middle and lower part, interface is that test result shows, can export current just at the data result of test event the most item by item.
" can suspend " test or " stopping " test by top button in the middle of test process, the test of time-out can continue, and the test of termination then can not continue at once, only completes remaining test by restarting test after reaffirming test plan；
Some promptings needing tester's manual operation to coordinate are had, as " instrument connection failure the most first confirms instrument whether successful connection in the middle of test！" etc.；
Can eject prompted dialog frame after being completed, instrument, control chamber are all switched to original state, and test signal link interrupts.
Result queries and repetition measurement: can click in below figure in the Information of left side " test result " after having tested, the test data inquired about and the repetition measurement work to wherein test item
Result queries: checking for test result can be according to " model machine " as shown, " plan ", the different screening such as " test item " items are carried out
Result repetition measurement: after having tested, for not by or doubt test item can select to need by choosing corresponding configuration item the test item of result repetition measurement, click on " startup repetition measurement " and start test.
Generate report file: clicking on after having tested and generate report button, load report template and protocol report template, click determines, automatically test data is inserted in report template, complete to test the derivation of data.
Claims (7)
1.LTE FDD Auto-Test System, it is characterized in that including: audiofrequency spectrometer, comprehensive test instrument, signal source, radio frequency switching control case, industrial computer and measured piece, audiofrequency spectrometer, comprehensive test instrument, signal source and radio frequency switching control case are integrated on rack, audiofrequency spectrometer, comprehensive test instrument and signal source are connected by GPIB control line, radio frequency switching control case is connected with industrial computer by USB control line, audiofrequency spectrometer, comprehensive test instrument turns USB control line with industrial computer by GPIB with signal source and is connected, audiofrequency spectrometer, comprehensive test instrument is connected with radio frequency switching control case rear board corresponding ports by RF cable with signal source input port.
LTE FDD Auto-Test System the most according to claim 1, it is characterised in that described spectrum analyzer is N9030A signal analyzer.
LTE FDD Auto-Test System the most according to claim 1, it is characterised in that described comprehensive test instrument is CTP3110.
LTE FDD Auto-Test System the most according to claim 1, it is characterised in that described signal generator is N5182B.
LTE FDD Auto-Test System the most according to claim 1, it is characterised in that described radio frequency switching control case includes radio frequency switching control case TH2900F-1 and radio frequency switching control case TH2900F-2 two parts.
LTE FDD Auto-Test System the most according to claim 5, it is characterised in that described radio frequency switching control case TH2900F-1 is connected by RF cable with radio frequency switching control case TH2900F-2.
LTE FDD Auto-Test System the most according to claim 1; it is characterized in that described radio frequency switching control case includes 3dB attenuator, power splitter, bonder, Band1 band elimination filter, Band3 band elimination filter, Band7 band elimination filter, low pass filter, high pass filter, electromagnetic switch, isolator, UE terminal 1 and UE terminal 2; wherein: input signal amplitude is decayed by described 3dB attenuator; guarantee that instrument, without departing from instrument range, is played a protective role by incoming signal level；
Input signal is separated into two-way by described power splitter, and a road is connected with comprehensive test instrument, and road unit after filtering is connected with audiofrequency spectrometer；
Input signal and interference signal are produced intermodulation product and are entered into spectrum analyzer and test by described bonder；
Described Band1 band elimination filter enters spectrum analyzer after significantly decaying Band1 main peak signal and carries out spuious test；
Described Band3 band elimination filter enters spectrum analyzer after significantly decaying Band3 main peak signal and carries out spuious test；
Described Band7 band elimination filter enters spectrum analyzer after significantly decaying Band7 main peak signal and carries out spuious test；
9kHz-1000MHz is filtered by described low pass filter, enters spectrum analyzer and carry out spuious test after filtering；
3000MHz-12750MHz is filtered by described high pass filter, enters spectrum analyzer and carry out spuious test after filtering；
Described UE terminal 1 provides radio-frequency input signals with UE terminal 2 for measured piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253816.XU CN205490613U (en) | 2016-03-30 | 2016-03-30 | LTEFDD automatic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253816.XU CN205490613U (en) | 2016-03-30 | 2016-03-30 | LTEFDD automatic test system |
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| Publication Number | Publication Date |
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| CN205490613U true CN205490613U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620253816.XU Expired - Fee Related CN205490613U (en) | 2016-03-30 | 2016-03-30 | LTEFDD automatic test system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721253A (en) * | 2016-03-30 | 2016-06-29 | 辽宁信鼎检测认证有限公司 | LTE FDD automatic test system and test method of LTE FDD automatic test system |
| CN108833029A (en) * | 2018-05-30 | 2018-11-16 | 中国电力科学研究院有限公司 | A kind of 1800M RF consistency transmitting intermodulation testing method and device |
| CN113037583A (en) * | 2019-12-25 | 2021-06-25 | 中移物联网有限公司 | Test apparatus, test method, and readable storage medium |
| CN114050878A (en) * | 2021-12-16 | 2022-02-15 | 成都中科微信息技术研究院有限公司 | Method and device for automatically testing stray suppression of multi-channel radio frequency system |
-
2016
- 2016-03-30 CN CN201620253816.XU patent/CN205490613U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721253A (en) * | 2016-03-30 | 2016-06-29 | 辽宁信鼎检测认证有限公司 | LTE FDD automatic test system and test method of LTE FDD automatic test system |
| CN108833029A (en) * | 2018-05-30 | 2018-11-16 | 中国电力科学研究院有限公司 | A kind of 1800M RF consistency transmitting intermodulation testing method and device |
| CN113037583A (en) * | 2019-12-25 | 2021-06-25 | 中移物联网有限公司 | Test apparatus, test method, and readable storage medium |
| CN113037583B (en) * | 2019-12-25 | 2022-08-30 | 中移物联网有限公司 | Test apparatus, method and readable storage medium |
| CN114050878A (en) * | 2021-12-16 | 2022-02-15 | 成都中科微信息技术研究院有限公司 | Method and device for automatically testing stray suppression of multi-channel radio frequency system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |