CN100403670C - Radio-frequency indicator testing method - Google Patents
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- CN100403670C CN100403670C CNB031494994A CN03149499A CN100403670C CN 100403670 C CN100403670 C CN 100403670C CN B031494994 A CNB031494994 A CN B031494994A CN 03149499 A CN03149499 A CN 03149499A CN 100403670 C CN100403670 C CN 100403670C
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Abstract
The present invention puts forward a method for testing CBTS radio frequency indexes. The method comprises the following steps: constructing a corresponding automatic test script according to a test example; running the automatic test script on a test machine which sets the state of a tested CBTS and the state of a test instrument; delivering an instruction of querying the information of the tested CBTS and the information of the test instrument by the test machine; feeding query results back to the test machine which correspondingly processes the test data and automatically generates a test report. The present invention automatically finishes the whole test process through the automatic test script, realizes the multi-time, multi-cell and multi-frequency point ergodic test of the CBTS radio frequency indexes, and enhances test efficiency. In addition, optimized automatic test scripts or other new required test examples can be derived after the compiled automatic test script is executed to make tests safe and efficiency high.
Description
Technical field
The invention belongs to the measuring technology of communication field, be specifically related to the radio-frequency (RF) index method of testing of a kind of CBTS of being used for.
Background technology
CDMA 2000 base station transceiver (CDMA2000BTS:Code DivisionMultiple Access 2000Base Transceiver Station) is hereinafter to be referred as CBTS.The test of CBTS radio-frequency (RF) index, mainly be whether the various index performances in check base station meet national relevant regulations, need to understand the performance index such as sensitivity, dynamic range, received signal quality of the performance index such as passage gross power, code domain power of forward fundamental channel and Traffic Channel and reverse traffic channel, in addition index such as stray radiation.
At present, the test of CBTS radio-frequency (RF) index mainly is manually to carry out, specifically carry out according to the following steps, as shown in Figure 1:
At first, after tested CBTS A, many tester B and testing machine C put up, form test environment.Wherein, these many testers are specially transmitter tester, vector signal source, spectrum analyzer etc.
Secondly, on testing machine, utilize tested CBTS A backstage Control Software, human configuration CBTS, as set up sub-district, primary channel, Traffic Channel etc.;
Then, in test process, when the emission index test, the state of transmitter tester among the tester B is set manually, detects the signal that tested CBTS A launches by tester B, and read the test data that needs, manual record and analysis from this instrument;
When receiving index test, the state in vector signal source among the tester B manually is set, this moment may be many (wherein, one provides CDMA signal, other provides as continuous wave tone signal (CW:Continuous Wave), additive white Gaussian noise (AWGN:Additive WhiteGauss Noise), interference signals such as CDMA), CBTS receives these signals and handles, utilize CBTS backstage Control Software, read the frame error rate (FER:Frame ErrorRate) that CBTS reports, received signal quality information such as (RSQI:Receiver Signal Quality Indicator), and manual record and analyzing test data.
When the stray radiation index test, tester C intermediate frequency spectrum analyzer manually is set, read power peak dot information in certain frequency range from spectrum analyzer, the pedestrian worker that goes forward side by side record and analysis etc.
In whole test process, tester B is by Artificial Control, and tested CBTS A realizes control by the special-purpose backstage Control Software of moving on the testing machine.The collection of test data and processing all are the artificial operations that realizes.And, between testing machine C and tester B, do not realize communication.
Obviously, also there are many shortcomings in the method for testing of above-mentioned CBTS radio-frequency (RF) index, now it is summarized as follows:
A, workload are big; CBTS radio-frequency (RF) index project is a lot, need do a large amount of settings to CBTS and Duo Tai tester, and needs to gather a large amount of test datas, carries out hand-kept, manual analysis etc.; Especially to a certain test index carry out repeatedly, the traversal test of many sectors, multifrequency point, the workload that instrument and image data are set is all very big, manual record and analyze and be difficult for realizing.
B, poor accuracy; Because of some test condition does not directly provide, so need carry out conversion calculations, manual operation mistake can occur unavoidably, can't guarantee its accuracy.
C, standardization are poor; Test result often depends on engineer's technical merit and test experience, is difficult to guarantee consistency, and the effect that experiment reaches is also inconsistent.
D, no inheritance; For the higher experiment of repeatability, after the front test finishes, when testing again, the back still needs the time of spending same.
E, interactivity are poor; Control to test product and tester can not realize mutual efficiently well.Because the control of test product is realized by special-purpose daemon software, realize that and be that the Test Engineer is manual therefore, under the test assignment situation very high to quantity and rate request, test job is difficult to realization to the control of tester.
Summary of the invention
The present invention proposes a kind of radio-frequency (RF) index method of testing, to solve the existing low problem of measuring technology automaticity.
For addressing the above problem, solution of the present invention is:
A kind of radio-frequency (RF) index method of testing, the method includes the steps of:
A, construct corresponding test script automatically according to test case, and on testing machine this automatic test script of operation;
B, by the operation described automatic test script, tested CDMA 2000 base station transceiver state and tester state are set automatically;
C, by the operation described automatic test script, read tested CDMA 2000 status information of transceiver in base station and tester state information;
D, by the operation described automatic test script, by testing machine test data is carried out respective handling, generate test report automatically.
Wherein: among the described step b, on testing machine, move test script, the state of tested CDMA 2000 base station transceiver and tester is set respectively by using the function that defines in tested CDMA 2000 base station transceiver and the tester controlling packet.Among the described step c, on testing machine, move test script, issue query statement by communication port respectively to tested CDMA 2000 base station transceiver and testing machine, after tested CDMA 2000 base station transceiver and testing machine are handled according to this query statement by the function in the controlling packet respectively, give testing machine with state information report.In the described steps d, the pack processing that this testing machine carries out test data contains: processing such as data preservation, index judgement, graphical data.
Wherein: the tester state that is provided with among described step b and the c and the operation of read test instrument information, can finish by the virtual instrument software framework built-in function in the tester controlling packet is auxiliary.
Test in described radio-frequency (RF) index also includes reverse receptivity index test, wherein, can adopt two-way binary search algorithm in this test.Above-mentioned radio-frequency (RF) index method of testing, its beneficial effect is summarized as follows: one, save human resources, improve testing efficiency.After the test beginning, move automatic test script, the tester can remote monitoring, needn't be in test site.The recording processing of test data and the generation of test report are all finished automatically.
Two, interactivity is strong.Test process carries out according to the flow process of prior regulation, in automatic testing process, fully realizes mutual between many testers and the tested CBTS.
Three, adopt binary search algorithm efficiently, test is safer, efficient is higher thereby make.
Four, realized the CBTS radio-frequency (RF) index repeatedly, the traversal test of many sub-districts, multifrequency point; Stability that can a certain index of long term monitoring product.
Five, inheritance is good.Write the automatic test script of finishing, can repeatedly repeat to be performed.And, be convenient on the basis of existing test script, derive the automatic test script of more optimization or the new test case of other demand.
Description of drawings
Fig. 1 is the test macro physical model Organization Chart of CBTS radio-frequency (RF) index in the prior art;
Fig. 2 is the test macro physical model Organization Chart of CBTS radio-frequency (RF) index of the present invention;
Fig. 3 is the framework flow chart of the described method of testing of the embodiment of the invention;
Fig. 4 is the described test specific implementation of an embodiment of the invention flow chart;
Fig. 5 is CBTS radio-frequency (RF) index testing principle figure of the present invention;
Fig. 6 is the communication construction figure of described testing machine of the embodiment of the invention and tested CBTS;
Fig. 7 A is the communication construction figure of described testing machine of the embodiment of the invention and tester;
Fig. 7 B is another communication construction figure of described testing machine of the embodiment of the invention and tester;
Fig. 8 is the described remote monitoring model support of an embodiment of the invention composition;
Embodiment
Introduce the test macro physical model framework of embodiment of the invention CBTS radio-frequency (RF) index below, as shown in Figure 2:
The overall architecture of this test macro is the Auto-Test System that one of main body composition can be mutual with tested CBTS A, tester B (being specially transmitter tester, vector signal source, spectrum analyzer etc.), testing machine C and far-end controller D, wherein:
Testing machine C: be used for moving hardware automatically testing platform (ATPF:Auto TestPlatform), according to the needs of test, the test script of selecting to have write carries out index test on this platform;
Far-end controller D: be used for monitoring whole testing progress, and can direct control testing machine C, the carrying out of control test.
Testing machine C links to each other with tested CBTS A by serial ports or network interface, and carries out following work by the script of its generation: control the work of tested CBTS A; Dispose tested CBTS A, as set up basic controlling channel, Traffic Channel etc.; Inquire about the state information of tested CBTS A, as frame error rate FER, received signal quality RSQI etc.
Testing machine C links to each other with tester B by serial ports, network interface, GPIB or other transmission medium, and carry out following work by the script of its generation: the work of control tester B, as test center's frequency, radio frequency output level are set, analyze bandwidth, video bandwidth etc.; The information of the tested product that the inquiry instrument receives is as passage gross power, waveform quality, time deviation, frequency departure etc.
Only need tested CBTS A, a plurality of tester B to be controlled by script, testing process and index test scheme according to planning, write test script, just can realize the interaction control of tester, tested CBTS A, realize the automatic control of whole test system.
Below, as shown in Figure 3 and Figure 4, the implementation procedure of the concrete test of the embodiment of the invention is described.
One, constructs corresponding test script automatically according to test case, and on testing machine, move this automatic test script.
At first, as shown in Figure 5, download required certain test case of CBTS radio-frequency (RF) index the test case library from special data server with natural language description, CBTS radio-frequency (RF) index normal temperature sensitivity test use-case for example, determine the tester B and the physical connection thereof of required use in tested CBTS A, the test again according to this test case, and by each test event index request and scope and environmental experiment testing scheme, make testing process, also comprise the processing scheme that occurs abnormal conditions in the test process simultaneously.
Then, call the function that defines in the controlling packet, each tester B controlling packet of tested CBTS A, construct automatic test script together with established testing process, for example the automatic test script of sensitivity.
At last, the automatic test script that operation writes on hardware test platform ATPF, it can finish the Automatic Control to whole test activity.In like manner, the test script for other CBTS radio-frequency (RF) index generates and operation according to above-mentioned steps equally.
Two, tested CBTS state and tester state are set.
The test beginning, at first tester B carries out initialization, tested CBTS A condition is set then and tester B state is set.
1, tested CBTS state is set
At first, use TCL (Tools Command Language) or Microsoft Visual C++ program language, write TCL controlling packet package or the VC dynamic link libraries DLL of CBTS.
Then, owing to tested CBTS A provides by communication port such as the serial ports of secondary development, network interface or parallel ports, and this communication port support is able to programme, communicates so can utilize this port to set up communication port between testing machine C and tested CBTS A.As shown in Figure 6, on testing machine CATPF platform, move test script, use the function that defines in the tested CBTS A controlling packet, send the control command of binary system or hexadecimal or character string to tested CBTS A, tested CBTS A carries out analyzing and processing after receiving control command, the operation of finish and set up the sub-district, setting up appointments such as Traffic Channel.
2, the tester state is set
At first, use TCL or Microsoft Visual C++ program language, write the TCL controlling packet package or the VC dynamic link libraries DLL of tester.
Then, on the ATPF of testing machine C platform, move test script, shown in Fig. 7 A, support serial ports or general-purpose interface bus (GPIB:Genaral-PurposeInterface Bus) communication port situation for tester B, then tester B supports instrument programming standard commands (SCPI:Standard Commands for Programing Instruments).Tester B controlling packet is used virtual instrument software framework (VISA:Virtual Instrument SoftwareArchitecture) built-in function, testing machine C issues certain bar SCPI control command to tester B, after tester B receives this instruction, finish the setting operation of appointment.
Shown in Fig. 7 B, support communication port situations such as serial ports, network interface or parallel port for tester B, the function that defines in the tester B controlling packet, testing machine C issues to tester by this communication port and sends binary system or hexadecimal or character string control command, after testing machine C receives this instruction, finish the setting operation of appointment.
Three, read tested CBTS state information and tester state information.
1, reads tested CBTS state information
Testing machine C passes through communication port, issue query statement to tested CBTS A, tested CBTSA is reported to the communication port buffering area according to instruction with relevant information, re-using in the tested CBTSA controlling packet certain encapsulation function reads, after the encapsulation function is handled, again by telecommunication cable with required Query Information, as frame error rate FER, received signal quality RSQI etc., report testing machine C.
2, read test instrument state information
Support serial ports or GPIB communication port situation for tester B, as shown in Figure 6A, then testing machine C issues the SCPI query statement, tester B is reported to its interior magazine or output buffer to feedback information, uses the VISA built-in function to read, and certain encapsulation function of instrument B controlling packet is handled after tested, again through serial ports or gpib bus, with Query Information,, report testing machine C as passage gross power, waveform quality, time deviation and frequency departure etc.
Support communication port situations such as serial ports, network interface or parallel port for tester B, shown in Fig. 6 B, then testing machine C issues binary system or hexadecimal or character string query statement, tester B is reported to the communication port buffering area to relevant information, re-using in the tester B controlling packet certain encapsulation function reads, and,, required information inquiring is reported to testing machine again through telecommunication cable through the processing of encapsulation function.
Four, by testing machine test data is carried out respective handling, generate test report automatically.
Whole test process is this automatic test script of operation on hardware test platform, finish automatic control to index test, according to the testing process of pre-formulation, the test data of gathering from tested CBTS A and tester B is carried out in full processing according to related datas such as preservation, index judgement, graphical datas at testing machine C.At last, after tested CBTS A and tester B reset, generate test report, data file automatically, and according to test data real-time rendering test curve etc.Tested CBTS A and tester B reset again again behind each EOT.Repeat above-mentioned steps two, three, thereby realize repeatedly, many sub-districts, the test of multifrequency point traversal.
In addition, the testing machine C that is used to move automatic test script can be monitored by far-end controller D.As shown in Figure 8, in the whole test process, be positioned at the far-end controller D in the place beyond the test site and be positioned at breadboard testing machine C and all move remote monitoring software as NetMeeting, testing machine C is equivalent to server, and far-end controller D is equivalent to the client.Far-end controller D by network TCP/IP, signs in on the testing machine C after obtaining security certificate, the progress of monitoring experiment, and on far-end controller D directly all interfaces and the resource of complete operation testing machine C, the carrying out that control is tested.
Wherein, at the reverse receptivity index test of CBTS radio-frequency (RF) index, in receiving sensitivity, reception dynamic range, determine a limited output power point according to the FER index.If according to conventional algorithm, be starting point promptly with a given power output, with certain step increments or successively decrease and search, then testing efficiency is not only low, and may can not find this limited output power point again at all, for example, given power starting point is original just low than limit power point, and the power stepping is a negative value, and then measured power is more and more lower, departs from also just more and more far away with limit power.
So, adopt two-way binary search algorithm in the reverse receptivity index test that in the test of embodiment of the invention CBTS radio-frequency (RF) index, is comprised.
The condition of at first clear and definite two-way binary search algorithm is: a given power starting point o (negative value), and an initial power stepping o (negative value), a minimum power stepping limit, FERo index (on the occasion of).
This two-way binary search algorithm is described as:
The # initialization
Interim FER=0
Power stepping=power stepping 0
Power output=power starting point 0
Condition switch="＜="
While { interim FER＜=FER0﹠amp; ﹠amp; Power stepping absolute value＞=power stepping 0
﹠amp; ﹠amp; Power output is in the signal source allowed band }
Signalization source power output
......
The maximum FER of a plurality of Traffic Channels under the # inquiry present output power, and assignment is given interim FER
The maximum FER of interim FER=Traffic Channel
If{ (interim FER condition switch FER0) ﹠amp; ﹠amp; Power stepping absolute value＞=power stepping 0}{
# reset signal source power output
Power output=power output+power stepping
}else{
(interim FER condition switch FER0) }
The two-way binary search algorithm of #
# replacement condition switch, i.e. reverse conditions switch
If{ condition switch="＜=" } { condition switch="＞" }
Else{ condition switch="＜=" }
The stepping of # replacement power, divided by 2.0, and assignment is given the power stepping with the opposite number of power stepping
The power stepping=-power stepping/2.0
# and minimum power stepping limiting proportion are
The if{ power stepping absolute value＜minimum power stepping limit }
The if{ power stepping＞0}{ power stepping=minimum power stepping limit
The stepping of else{ power=-the minimum power stepping limit
}
}
# reset signal source power output
Power output=power output+power stepping
}
}
The embodiment of the invention is by automatic test script, flow process according to prior regulation is tested automatically, automatically finish the recording processing and the test report of test data, thereby human resources have been saved, improved testing efficiency, simultaneously, fully realized the interactive function between tester and the tested CBTS, realized the CBTS radio-frequency (RF) index repeatedly, the traversal test of many sub-districts, multifrequency point.In addition, write the automatic test script of finishing, can repeatedly repeat to be performed, be convenient on the basis of existing test script, derive the new test case of more optimal automatic test script or other demand.Adopt binary search algorithm efficiently in test again, test is safer, efficient is higher thereby make.
Claims (6)
1. radio-frequency (RF) index method of testing is characterized in that the method includes the steps of:
A, construct corresponding test script automatically according to test case, and on testing machine this automatic test script of operation;
B, by the operation described automatic test script, tested CDMA 2000 base station transceiver state and tester state are set automatically;
C, by the operation described automatic test script, read tested CDMA 2000 status information of transceiver in base station and tester state information;
D, by the operation described automatic test script, by testing machine test data is carried out respective handling, generate test report automatically.
2. a kind of radio-frequency (RF) index method of testing as claimed in claim 1, it is characterized in that: among the described step b, on testing machine, move test script, the state of tested CDMA 2000 base station transceiver and tester is set respectively by using the function that defines in tested CDMA 2000 base station transceiver and the tester controlling packet.
3. a kind of radio-frequency (RF) index method of testing as claimed in claim 1, it is characterized in that: among the described step c, on testing machine, move test script, issue query statement by communication port respectively to tested CDMA 2000 base station transceiver and testing machine, after tested CDMA 2000 base station transceiver and testing machine are handled according to this query statement by the function in the controlling packet respectively, give testing machine with state information report.
4. a kind of radio-frequency (RF) index method of testing as claimed in claim 1 is characterized in that: in the described steps d, the pack processing that this testing machine carries out test data contains: processing such as data preservation, index judgement, graphical data.
5. a kind of radio-frequency (RF) index method of testing as claimed in claim 1, it is characterized in that: the tester state that is provided with among described step b and the c and the operation of read test instrument information, can finish by the virtual instrument software framework built-in function in the tester controlling packet is auxiliary.
6. a kind of radio-frequency (RF) index method of testing as claimed in claim 1 is characterized in that: the test in described radio-frequency (RF) index also includes reverse receptivity index test, wherein, can adopt two-way binary search algorithm in this test.
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| CN101141205B (en) * | 2007-07-04 | 2011-07-13 | 中兴通讯股份有限公司 | TD-SCDMA radio frequency index testing system and method |
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| CN101977393A (en) * | 2010-10-29 | 2011-02-16 | 中兴通讯股份有限公司 | Received signal quality indicator (RSQI) testing method and device |
| CN102354200A (en) * | 2011-06-10 | 2012-02-15 | 大唐移动通信设备有限公司 | Method and device for automatic test through control instrument |
| DE102012202482A1 (en) * | 2012-02-17 | 2013-08-22 | Rohde & Schwarz Gmbh & Co. Kg | Method and device for avoiding misdetection of control channels |
| CN102769665B (en) * | 2012-06-28 | 2015-06-03 | 大唐移动通信设备有限公司 | Radio frequency test instrument sharing system and application method thereof |
| CN102830298B (en) * | 2012-07-27 | 2017-04-12 | 中兴通讯股份有限公司 | Method and device for testing radio frequency index and wireless index of active antenna system |
| CN103209040B (en) * | 2013-04-19 | 2015-02-18 | 西北工业大学 | Radio frequency signal envelope index testing method based on virtual instrument |
| CN103716103B (en) * | 2013-12-30 | 2016-08-17 | 上海原动力通信科技有限公司 | A kind of method of testing and test system |
| CN104767576B (en) * | 2015-04-29 | 2017-03-22 | 西北工业大学 | Automatic testing method for radio frequency signal power and stray |
| CN105374202A (en) * | 2015-12-14 | 2016-03-02 | 四川长虹电子部品有限公司 | Radio frequency remote controller automatic test system |
| CN108377171B (en) * | 2018-03-21 | 2021-07-06 | 北京东方计量测试研究所 | Ad hoc network equipment radio frequency performance comprehensive test system |
| CN109413686B (en) * | 2018-10-19 | 2022-07-29 | 京信网络系统股份有限公司 | Base station automatic test system, method and device |
| CN109347578B (en) * | 2018-11-27 | 2022-01-04 | 京信网络系统股份有限公司 | Radio frequency performance test method and device, computer equipment and readable storage medium |
| CN114221716A (en) * | 2021-12-17 | 2022-03-22 | 杭州海联物联科技有限公司 | Radio frequency module testing method based on script |
| CN117539178A (en) * | 2023-11-10 | 2024-02-09 | 成都玖锦科技有限公司 | Instrument intelligent detection platform system based on custom script |
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