CN206432996U - Radio-frequency performance of wireless terminal test system - Google Patents
Radio-frequency performance of wireless terminal test system Download PDFInfo
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- CN206432996U CN206432996U CN201720087454.6U CN201720087454U CN206432996U CN 206432996 U CN206432996 U CN 206432996U CN 201720087454 U CN201720087454 U CN 201720087454U CN 206432996 U CN206432996 U CN 206432996U
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Abstract
The utility model discloses a kind of radio-frequency performance of wireless terminal test system, it is characterised in that including：Some test instrumentations, radio-frequency channel switching system, control computer, programmable power supply, control computer difference connecting test instrument, radio-frequency channel switching system, programmable power supply, test instrumentation connects radio-frequency channel switching system, and radio-frequency channel switching system and programmable power supply connect terminal to be measured respectively.The utility model is formed hardware and software platform design, reduces and build by hand, test environment can be made more to stablize by the way of hardware integration；Radio-frequency channel switching system is divided into conventionally test and special test item by the utility model, can meet the different demands of research and development and production, and autgmentability is strong；The utility model is uniformly controlled to instrument, radio-frequency channel switching system etc., completes one-touch test, is greatly improved testing efficiency and is reduced human cost.
Description
Technical field
The utility model is related to a kind of test system, and in particular to a kind of radio-frequency performance of wireless terminal test system.This reality
With the new product being mainly used in towards automatic test field, applied to communications fields such as frequency microwaves.
Background technology
Terminal is important part in mobile communications network, and it can directly reflect mobile communications network in user terminal
Service quality.It if terminal has technological deficiency, not only can not truly reflect network service quality, other users can also be produced
Raw interference, influences customer experience.
3GPP（Third Generation Partnership Project）Organize the technology and performance indications to terminal
Done strict regulation, it is 3GPP terminal radio frequency consistency test specifications to form detailed testing process, be global Terminal Design,
Research and development, test, the standard of the necessary foundation of certification.
Terminal radio frequency performance test at this stage needs to use many instrumentations to carry out network environment and built, every time by hand
Networking holding time is long, and brings test environment stability problem, and the operation of instrument in itself is also complex, different
Test item needs manually operated instrument, it has not been convenient to.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of radio-frequency performance of wireless terminal test
System, to solve, test environment in the prior art is unstable and technical problem of inconvenient operation.
In order to realize above-mentioned target, the utility model is adopted the following technical scheme that：
Radio-frequency performance of wireless terminal test system, it is characterised in that including：Some test instrumentations, radio-frequency channel switching system
System, control computer, programmable power supply, control computer difference connecting test instrument, radio-frequency channel switching system, programmable power supply,
Test instrumentation connects radio-frequency channel switching system, and radio-frequency channel switching system and programmable power supply connect terminal to be measured respectively.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that the test instrumentation includes comprehensive test instrument, frequency spectrum
Instrument, signal source, radio-frequency channel switching system are connected with comprehensive test instrument, frequency spectrograph, signal source respectively.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that radio-frequency channel switching system includes main radio frequency
Channel switching system and auxiliary radio-frequency channel switching system, main radio-frequency channel switching system connection auxiliary radio-frequency channel switching system
System, control computer connects main radio-frequency channel switching system, auxiliary radio-frequency channel switching system respectively.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that all test instrumentations and radio-frequency channel switching
The system integration is in a standard cabinet.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that main radio-frequency channel switching system includes first
Main control module and first kind radio-frequency devices, the first main control module connection first kind radio-frequency devices, aid in radio-frequency channel switching system
Including the second main control module and Equations of The Second Kind radio-frequency devices, the second main control module connection Equations of The Second Kind radio-frequency devices, the first main control module
Separate with the second main control module, control computer connects the first main control module, the second main control module, first kind radio frequency respectively
Device, Equations of The Second Kind radio-frequency devices difference connecting test instrument.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that also including radio frequency box chain calibration equipment, penetrate
Frequency box chain calibration equipment connects radio-frequency channel switching system.
Foregoing radio-frequency performance of wireless terminal test system, it is characterised in that radio frequency box chain calibration equipment is power meter
Or vector network analyzer.
It is of the present utility model to be beneficial in that：The utility model forms hardware and software platform design by the way of hardware integration,
Reduce and build by hand, test environment can be made more to stablize；Radio-frequency channel switching system is divided into conventionally test by the utility model
Item and special test item, can meet the different demands of research and development and production, and autgmentability is strong；The utility model is to instrument, radio-frequency channel
Switching system etc. is uniformly controlled, and completes one-touch test, is greatly improved testing efficiency and is reduced human cost.
Brief description of the drawings
Fig. 1 is one of the utility model radio-frequency performance of wireless terminal test system structural representation being preferable to carry out.
Embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
Shown in reference picture 1, the utility model is directed to existing 3GPP testing standards（TS51.010、TS34.121、
TS36.521）There is provided a kind of complete radio-frequency performance of wireless terminal test system.
By radio-frequency channel switching system, routinely test item and special test item carry out unit independently and combination makes on hardware
With the demand of completion different user.
It is described as follows：
A kind of radio-frequency performance of wireless terminal test system of the utility model, including test instrumentation, radio-frequency channel switching system,
Control computer, programmable power supply, power meter or vector network analyzer etc., wherein test instrumentation include comprehensive test instrument, frequency spectrograph
And signal source；Radio-frequency channel switching system is divided into main test cell and subtest unit, each unit according to test function
It is interior to include independent main control part.
Signal source in meter section is mainly the generation for completing subsidiary signal, and signal source can produce different tune
The need for signal or tone signal processed meet terminal reception test.The quality of frequency spectrograph measuring terminals transmission signal；Comprehensive test instrument
It is mainly used to anolog base station, sets up and be reliably connected between terminal, the signal that test needs can be generated, also can be to receiving
Signal analyzed and provide test result.
Radio-frequency channel switching system mainly meets requirement of the 3GPP agreements to testing case environmental structure, design test
The set of link.
Computer is the control core of system, and automatic test software, the main control for completing testing process are installed in inside
Function.
Programmable power supply is mainly the requirement for meeting 3GPP protocol tests use-case to terminal supply voltage.
Power meter or vector network analyzer are also essential measuring instrument, may be collectively referred to as radio frequency box link school
Quasi- equipment, when carrying out radio frequency box chain calibration, in order to improve calibration accuracy, generally uses power meter or vector network analysis
Instrument is completed.
Frequency spectrograph can complete to analyze transmission signal quality and the function of band stray signal.
Terminal radio frequency performance has been divided into emitter test and receiver test two parts by 3GPP test specifications.Emitter is surveyed
Examination includes the frequency error of transmission signal, power output, signal quality, output spectrum, spurious emissions etc.；Receiver test is included
Sensitivity, cochannel, the AF panel of side channel, intermodulation suppression, obstruction and spurious response etc..Wherein band stray and it is blocked in
Producing line will not typically be tested.For such case, it is single that radio-frequency channel switching system is divided into main test by us according to test object
Member and subtest unit.
Radio-frequency channel switching system includes the radio-frequency devices such as RF switch, power splitter, attenuator, also comprising independent master control
Module；All test items beyond spuious, obstruction with addition to etc. can be completed when main test cell is used alone, are increased auxiliary
The test items such as the spuious, obstruction helped outside the i.e. compatible band of test cell.Independent main control module makes two kinds of test cells can be only
Vertical control.All test instrumentations and radio-frequency channel switching system can be integrated in a rack, and rack suggestion is 19 " Standard Machines
Cabinet.
Radio-frequency channel switching system is the key components of test system, is between each instrument and test equipment
Bridge.In view of system to frequency range and the autgmentability of test item, the design of radio-frequency channel switching system is divided into main radio-frequency channel
Switching system is designed and auxiliary radio-frequency channel switching system design.Link position in main radio-frequency channel switching system has contained all
Frequency range, and disclosure satisfy that conventional item test.Auxiliary radio-frequency channel switching system is to consider measurement different frequency bands signal
When the frequency-selecting device such as the wave filter that considers link portions, such as band stray, obstruction test item can be met.System is to can
When the frequency range of measurement is extended, it is only necessary to just can be with the external corresponding device of auxiliary radio-frequency channel switching system.
A variety of radio-frequency devices are integrated with the switching system of radio-frequency channel（Such as attenuator, amplifier, isolator, wave filter, coupling
Clutch, circulator, limiter and RF switch etc.）And RF switch control unit（Also referred to as main control module）, pass through radio frequency
The switching of switch completes the selection of radiofrequency signal link in channel switching system, meets the test condition of RF index.
The design of radio-frequency channel switching system is based primarily upon three standards：
Meet the integrality that transmitter and receiver test request specified in 3GPP specifications ensures measurement signal；
Safeguard measure is provided to instrument in system, it is ensured that instrument is not influenceed and damaged by high-power signal；
Take into full account the follow-up scalability of system.
Based on requirements above, radio-frequency channel switching system first must be using the microwave device with test signal respective bandwidth
Guarantee to take out test signal from main feeder；Secondly, to calculate sampled signal amplitude size to adapt to spectrum analyzer
It is required that.Measurement high-power signal carries out appropriate attenuation processing and preferably remote from for detecting the path of small-signal；If will
Detect small-signal, it is also possible to increase wave filter and low-noise amplifier and complete to test to coordinate.The characteristics of test signal, determines
The factors such as isolation in signal link between the position of device, each device are determined.
The design of radio-frequency channel switching system be not to it is all test links simple superposition, in the design process except
Outside the problem of considering according to the different characteristics that each test case is verified in the design that proposes and points for attention, using coupler,
The devices such as RF switch are connected.Globality, which should be embodied, will also ensure the independence of different test links, it is to avoid signal is unnecessary
Influence of the leakage to test.The compensation for calculating instrument to link load is also taken into full account in the design process of link simultaneously
Ability, if beyond the range of instrument.By it is substantial amounts of practice design radio-frequency channel switching system link when use it is main
Safeguard is as follows：
By wave filter, filter out all possible because of design defect or the leakage of instrument outside test protocol regulation
Have influence on the interference signal of measurement signal.
In non-measured link but there is the end of link that signal may reach to increase load absorption power, it is to avoid this signal it is anti-
Penetrate the influence to measurement signal.Increase the isolation between different links as far as possible, by undesired signal isolation.
The security of instrument is taken into full account in the design process of link：Measurement is spuious to be waited during test case, it is necessary to utilize filter
Ripple device avoids high-power signal to filter out the high-power signal of terminal transmission, both to the damage of frequency spectrograph or improves frequency spectrograph essence
Degree.Increase the damage of individual event device group or attenuator protective meter from high-power signal in instrument junction.
The conventional test instrumentation of compatible in the market, the RF consistency in 3GPP specifications is tested on the utility model software
Item testing process is packaged, and realizes that a key is tested, and provides test result analysis report.
Software section mainly realizes the signal excitation of automation, the collection of information and the conversion to signal, processing and defeated
Go out test result.Many instrumentations are controlled by the automatic test software run in control computer, according to testing procedure
Equipment under test is tested, to test result processing, and judges whether indices meet code requirement and form test report
Accuse.
The purpose of radio-frequency performance of wireless terminal test system is completely to automate the manual test process of product.This
The Basic practice of realization of goal is by the physical resource required for manual product test（Such as control measuring instrument, exciting signal source
And test link etc.）Set is unified in a test system, and performing test software by control computer controls it.
The basic architecture framework of radio-frequency performance of wireless terminal test system is as shown in Figure 1.When test system works, control
Computer is by test software control signal excitation set, measuring instrument instrument, power supply and switches set etc., and signal, which is added to, to be needed
The place wanted, and pass through instrument measurement signal, then analysis measurement result, and then discriminating test result in measurement point.
Test program set positioned at upper strata passes through instrument bus (LAN, GPIB, PXI etc.) control test equipment and test
The conversion of link.In actual test process, Test Engineer only needs to set the base needed for test in control computer
This parameter, testing results program can complete the operation such as judgement of signal acquisition, processing and result.
The operation of system of the present utility model can be according to being carried out as follows：Step one：Judge whether equipment connects normally, such as
Fruit does not connect normal, is rejudged after checking equipment, if connection is normal, carries out the initialization of test instrumentation；
Switch the link of radio-frequency channel switching system；
The parameter of test instrumentation is set；
The state of terminal to be measured is set；
Terminal response to be measured is waited, if terminal to be measured is not responded to, step 4 is gone to, if terminal to be measured is corresponding, held
Row step 6；
Measurement data is read, judges whether measurement completes, if it is not complete, going to step 2, if completed, step is performed
Rapid seven；
Measurement data is handled, measurement result is shown.
Aforesaid operations, by being controlled, signal are added to the place of needs by the control computer, and in measurement
Point passes through instrument measurement signal, then analysis measurement result, and then discriminating test result.
Control computer controls test equipment by instrument bus and tests the conversion of link, and Test Engineer only need to be
Basic parameter needed for test is set in control computer, and testing results program can complete signal acquisition, processing and result
The operation such as judgement.
The utility model uses above technical scheme compared with prior art, with following technique effect：
Instrument and radio-frequency channel switching system are integrated in 19 " Standard Machines by the utility model by the way of hardware integration
In cabinet, hardware and software platform design is formed, reduces and builds by hand, test environment can be made more to stablize；
Radio-frequency channel switching system is divided into conventionally test and special test item by the utility model, can meet research and development and raw
The different demands of production, autgmentability is strong；
Automated software of the present utility model is uniformly controlled to instrument, radio-frequency channel switching system etc., completes a key
Formula is tested, and is greatly improved testing efficiency and is reduced human cost.
The test script of automated software in the utility model is all the testing procedure in strict accordance with 3GPP test protocols
With require what is write, and according to protocol requirement to result carry out analysis output.
Automated software in the utility model has exclusive interface can be according to different operators, different enterprise requirements
To customize or change its distinctive test case and criteria thresholds.
General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical scheme obtained, all falls within protection domain of the present utility model.
Claims (7)
1. radio-frequency performance of wireless terminal test system, it is characterised in that including：Some test instrumentations, radio-frequency channel switching system,
Control computer, programmable power supply, control computer difference connecting test instrument, radio-frequency channel switching system, programmable power supply, test
Instrument connects radio-frequency channel switching system, and radio-frequency channel switching system and programmable power supply connect terminal to be measured respectively.
2. radio-frequency performance of wireless terminal test system according to claim 1, it is characterised in that the test instrumentation includes
Comprehensive test instrument, frequency spectrograph, signal source, radio-frequency channel switching system are connected with comprehensive test instrument, frequency spectrograph, signal source respectively.
3. radio-frequency performance of wireless terminal test system according to claim 1, it is characterised in that radio-frequency channel switching system
Including main radio-frequency channel switching system and auxiliary radio-frequency channel switching system, main radio-frequency channel switching system connection auxiliary radio frequency leads to
Road switching system, control computer connects main radio-frequency channel switching system, auxiliary radio-frequency channel switching system respectively.
4. radio-frequency performance of wireless terminal test system according to claim 1, it is characterised in that all test instrumentations and penetrate
Frequency channel switching system is integrated in a standard cabinet.
5. radio-frequency performance of wireless terminal test system according to claim 3, it is characterised in that main radio-frequency channel switching system
System includes the first main control module and first kind radio-frequency devices, and the first main control module connection first kind radio-frequency devices, auxiliary radio frequency leads to
Road switching system includes the second main control module and Equations of The Second Kind radio-frequency devices, and the second main control module connects Equations of The Second Kind radio-frequency devices, the
One main control module and the second main control module are separate, and control computer connects the first main control module, the second main control module respectively,
First kind radio-frequency devices, Equations of The Second Kind radio-frequency devices difference connecting test instrument.
6. radio-frequency performance of wireless terminal test system according to claim 1, it is characterised in that also including radio frequency box link
Calibrator (-ter) unit, radio frequency box chain calibration equipment connection radio-frequency channel switching system.
7. radio-frequency performance of wireless terminal test system according to claim 6, it is characterised in that radio frequency box chain calibration is set
Standby is power meter or vector network analyzer.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200545A (en) * | 2017-12-20 | 2018-06-22 | 深圳市极致汇仪科技有限公司 | A kind of WLAN signaling tests system and test method |
| CN110429997A (en) * | 2019-07-25 | 2019-11-08 | 中国信息通信研究院 | A kind of wireless performance test method and system |
| 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 |
| CN113358947A (en) * | 2020-03-02 | 2021-09-07 | 上海特普瑞通讯科技有限公司 | Radio frequency device test system |
-
2017
- 2017-01-23 CN CN201720087454.6U patent/CN206432996U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200545A (en) * | 2017-12-20 | 2018-06-22 | 深圳市极致汇仪科技有限公司 | A kind of WLAN signaling tests system and test method |
| CN108200545B (en) * | 2017-12-20 | 2021-06-18 | 深圳市极致汇仪科技有限公司 | WLAN signaling test system and test method |
| CN110429997A (en) * | 2019-07-25 | 2019-11-08 | 中国信息通信研究院 | A kind of wireless performance test method and system |
| 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 |
| CN113358947A (en) * | 2020-03-02 | 2021-09-07 | 上海特普瑞通讯科技有限公司 | Radio frequency device test system |
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Address after: Room 312, Building B, Xingzhi Science and Technology Park, No. 6 Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province, 210038 Patentee after: Nanjing Jiexi Technology Co.,Ltd. Country or region after: China Address before: 2nd Floor, Building 9, Jiangsu Software Park, No. 699-22 Xuanwu Avenue, Xuanwu District, Nanjing City, Jiangsu Province, 210042 Patentee before: NANJING JIEXI TECHNOLOGY Co.,Ltd. Country or region before: China |