CN105101278B - Conformance test method and system for the base stations FDD-LTE - Google Patents
Conformance test method and system for the base stations FDD-LTE Download PDFInfo
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Abstract
The invention discloses a kind of FDD LTE base stations consistency automated testing method and systems, setting is tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine, and tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine are connected in a LAN；The tested base station is equipped with L2 test modules, and testing tool unit is equipped in the test PC machine.Hinge of the L2 test modules as tested base station and testing tool is arranged in the present invention, give data penetration transmission to true L2, realize and carry out the test of true flow under conditions of networking without true UE, can the downstream transmitter of efficient, accurate testing base station, uplink receiver and receiver performance all test items.
Description
Technical field
The present invention relates to wireless communication systems, more specifically, being to be directed to forth generation mobile communication long-term evolution system（Letter
Claim 4G LTE）The test method and system of middle base station consistency.
Background technology
LTE (Long Term Evolution, long term evolution) project is the evolution of 3G, it improves and enhances the sky of 3G
Middle access technology, wherein label L 1 are the 1st layer（Physical layer）, L2 is the 2nd layer（Data link layer）, L3 is the 3rd layer（Network layer）.
Physical layer uses OFDM technology (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing skill
Art) and MIMO technology (Multiple-Input Multiple-Output, multiple-input multiple-output technology), greatly improve system
Rate and handling capacity.3GPP36.141 agreements (Evolved Universal Terrestrial Radio Access (E-
UTRA);Base Station (BS) conformance testing) be 4G LTE wireless communication systems base station radio frequency
The description agreement of test method and coherence request is done the uplink and downlink of LTE base station and performance test requirement and standard in agreement
Specific regulation, wherein performance chapters and sections are verification data decoding capability of the base station with functions of retransmission.
Existing base station automatization test system and method are only tested the RF index of RRU, are free of performance
Test, cannot fully react LTE base station consistency.Another have part testing systems using being tested by the way of simulating,
The true flow of base station is not walked, it cannot the right-on indices for reacting base station.
Invention content
The object of the present invention is to provide a kind of base station uniformity test technical solutions, realize to the consistent of the base stations FDD-LTE
Property index test and result statistics, to achieve the purpose that it is cost-effective, improve data precision and test speed.It is specific next
Say, it is therefore an objective to a kind of method and system of the base stations FDD-LTE consistency automatic test are provided, for downstream transmitter,
Test, result statistics and the judgement of row receiver and the multiple test items of uplink receiver performance.
Technical scheme of the present invention provides a kind of conformance test method for the base stations FDD-LTE, it is characterised in that：If
Tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine are set, by tested base station, radio frequency matrix, signal source, frequency spectrograph
It is connected in a LAN with test PC machine；The tested base station is equipped with L2 test modules, is equipped with and surveys in the test PC machine
Tool unit is tried, the process that testing tool unit is tested for tested base station is as follows,
Step 1, a pending test item is taken successively, is set by LAN according to the name identification of current test item
Set the corresponding test topology figure of radio frequency matrix；
Step 2, classification is judged according to the mark of current test item,
If current test item is downlink test item, the sources corresponding downlink ETM are sent by LAN from test PC machine
To the L2 test modules of tested base station, the true L2 in tested base station is passed to later and is issued to L1, L1 is sent to antenna opening, through penetrating
Frequency matrix is to frequency spectrograph；Frequency spectrograph is controlled according to the mark of current test item, corresponding data result is read from frequency spectrograph；
If current test item is uplink test item, corresponding uplink URX message is sent out by LAN from test PC machine
The L2 test modules for giving tested base station pass to the true L2 in tested base station and are issued to L1 later；According to current test item
Mark control signal source, sends corresponding useful signal and interference signal as upstream data, by radio frequency matrix be sent to by
The antenna opening for surveying base station, by L1 according to uplink URX message solution upstream datas；Decoding result is reported to true L2, true L2 by L1
Pass through L2 test modules, the parsing of L2 test modules obtains and is sent to testing tool unit by LAN after data result；
Step 3, the data result of the current test item received is done with corresponding index and is judged, whether met index
It is required that as a result, and by data result and judgement result shown in the list of interface；
Step 4, after current test item test, next pending test item is taken successively, until pending institute
There is test item completion.
Moreover, if current test item is uplink test item, and belong to performance chapters and sections, it is sent from base station when needing to retransmit
Harq feedback signals are to signal source.
The present invention accordingly provides a kind of consistency testing system for the base stations FDD-LTE, including tested base station, radio frequency square
Tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine are connected to by battle array, signal source, frequency spectrograph and test PC machine
In one LAN；The tested base station is equipped with L2 test modules, and testing tool unit is equipped in the test PC machine.
Moreover, the testing tool unit includes interface operation module, communication module, instrument control module, radio frequency matrix
Control module and data processing module；
The communication module, for being communicated with L2 test modules；
The instrument control module needs simulation UE to send for controlling signal source by LAN according to dependence test item
Useful signal and interference signal, and it is corresponding by LAN control frequency spectrograph reception and the downlink data reading of demodulation base station
Data result；
The radio frequency matrix control module is cut for sending control command by LAN to radio frequency matrix progress topological diagram
It changes, changes external wiring construction；
The interface operation module, for providing a user operation interface and display data result and judgement result；
The data processing module, for carrying out determination processing to test item corresponding data result.
As can be seen that the present invention's is clearly advantageous that from above-mentioned technical proposal：In the test system and method for the present invention
In, the transfer mode of L2 test modules is used, L2 test modules play the role of crucial intermediate conveyor, and suitable for more
The base stations FDD-LTE of a version alleviate development cycle and the debug time of later release.Additionally use the mode of harq feedbacks
To instrument, it can effectively simulate UE and send re-transmission data, it can effective test performance index.The survey that the present invention passes through automation
Examination mode has saved a large amount of human cost, shortens the testing time, improves test accuracy rate and efficiency.
Description of the drawings
Fig. 1 is the test system architecture design drawing of the embodiment of the present invention.
Fig. 2 is the test flow chart of the embodiment of the present invention.
Specific implementation mode
The present invention provides a kind of to base station consistency testing system and method, this system includes the downlink to base station
The index test of machine, uplink receiver and ascending performance characteristic.The test method of the present invention is Automation Control Instruments and base station
Mode, all test item of test that can be automated reached and used manpower and material resources sparingly cost and improve the mesh of test speed
's.Test report can be with the test item of quantification base station as a result, intuitively reflecting the consistency ability of base station.In order to be more clear
Introduce technical scheme of the present invention, provide specific FDD-LTE consistency to the embodiment of the present invention below with reference to accompanying drawings
Automatization test system and method are further described in detail.
To realize that the automatic test of all test items, the aspect to be considered have：
（1）Base station is an independent equipment, and in order to simplify test environment, most of base station testing is all without connection core
Heart net, therefore how base station is the most important thing of base station uniformity test with the interaction of testing tool unit.
（2）Due to needing to use different topological diagrams when testing different test items, therefore it is required that can automatic identification
Test item title changes the external mode of connection.
（3）To the downlink data of base station, the upstream data that the correct solution in base station sends signal source all needs the correct solution of frequency spectrograph
It is synchronous with instrument to be tested base station.In true scene, UE needs base station to send solution with the data sent when base station communication
The case where code, can determine whether to retransmit and retransmit the version of data according to the situation to UE, UE, or even need in some cases
Adjust time delay value.Signal source is used in the uniformity test of base station to simulate UE transmission datas, therefore the harq of base station（It is mixed
Close automatic repeat request）It is also an Important Problems that information, which feeds back to signal source,.
（4）ETM under each bandwidth of test downlink is provided according to 36.141 agreements（Test model）Source has six kinds, each to test
Item needs the number in source to be tested and type also different, and uplink test needs to send scheduling information, different test items to L1
The data and format of test are all different, above-mentioned regulation required automatization test system must according to the title of test item come
Which kind of data judgement needs to send to correct destination.
（5）All kinds of results statistics of downstream modulation data and analysis and the statistical problem of uplink decoding data, and it is last
The preservation of test result.
（6）The control of all kinds of test instrumentations and subtest equipment.
Referring to Fig. 1, the embodiment of the present invention proposes a kind of consistency testing system for the base stations FDD-LTE, including tested
Base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine, using network interface communication by the way of, by tested base station, radio frequency matrix,
Signal source, frequency spectrograph and test PC machine are connected in a LAN；The tested base station is equipped with L2 test modules, the test
Testing tool unit is equipped in PC machine.
When it is implemented, those skilled in the art can voluntarily select as needed tested base station, radio frequency matrix, signal source,
The concrete model of frequency spectrograph and test PC machine realizes testing tool unit using computer software technology.In order to realize to base station
One-touch automatic test function, the embodiment of the present invention, will test PC machine, tested base station mainly by the way of network interface communication
Equipment, test instrumentation and the radio frequency of external cabling matrix are connected in a LAN.By above-mentioned communication mode, PC machine is tested
On testing tool unit can flexibly be communicated with all modules in test system.
In base station side（BS）The L2 test modules of middle setting are the key that testing tool unit and tested base station tie, master
It is to do corresponding processing according to the data and order that testing tool unit sends in test PC machine to want task, and data are passed
True L2 is passed, and initial judgement is done after receiving the decoding result that true L2 is reported, while being passed the result to by LAN
Test the testing tool unit of PC machine.
The embodiment of the present invention in tested base station side by being embedded in L2 test modules come the true L2 of the tested base station of transparent transmission and survey
The interaction data of tool unit is tried, and preliminary analyzing processing can be done to test result.This module is only base station uniformity test
Service, can support the base station of different frequency range and different bandwidth, without being changed because of edition upgrading.L2 test modules is used to make
For the communication bridge of testing tool unit and base station, the data being used between the true L2 of transparent transmission and testing tool unit.The mould
Block does not influence the true flow of base station, while being adapted to multiple base station editions, for the upgrading of later stage base station edition, only needs root
According to MAC-PHY interface documents（Refer to the interface document of MAC layer and physical layer）Locally corresponding big message is literary for modification test PC machine
Part, without modifying to L2 test modules.
Present invention employs radio frequency matrixes simultaneously connects tested base station and test instrumentation, i.e., signal source is sent upper
Row data enter through radio frequency matrix is tested base station, and the downlink data that tested base station is sent enters frequency spectrograph, radio frequency through radio frequency matrix
Matrix is remote controlled equipment, its control command is loaded into the testing tool unit of test PC machine when specific implementation, can
Flexibly to control its connection mode, remove manual thread-changing from, achievees the purpose that the multiple and different topological diagram test items of automatic test.
Radio frequency matrix is the RTS-C010-002 models of the Nanjing Jie Xi scientific ＆ technical corporation customization used in the embodiment of the present invention,
This radio frequency matrix is suitable for the FDD standard RRU devices of all 2.1G of applicant company's production, wherein containing, test is multiple to decline
Subtract device and load, bandstop filter（Logical 700-2025MHz and 2300-2600MHz）, bandpass filter（Logical 1900-
2200MHz）, low noise, auxiliary material needed for circulator and other tests.The equipment is by penetrating in the testing tool unit of test PC machine
Frequency matrix control module sends control command by LAN and carries out topological diagram switching, can be responded within 1 second and complete to switch.
Jie Xi companies provide the interface function of RTS-C010-002 model radio frequency matrixes, and different tests is corresponded to for different test items
Topological diagram, wiring construction that can be by network interface to send setting command to change external.The radio frequency matrix both can be according to test
Command parameter that the testing tool unit of PC machine is sent adjusts test topology, can also switch base station according to test request
Antenna opening.When it is implemented, base station is the interfaces such as two channels, four-way or eight channels, it is attached to radio frequency matrix, by radio frequency
Inverse problem selects specific wiring.
The embodiment of the present invention simulates UE using frequency spectrograph and signal source as test instrumentation, and wherein frequency spectrograph is for taking off
Row data, signal source can use trigger lines for sending upstream data（Line synchro）Mode the synchronous of tested base station is believed
Number, 10M clock signals and harq feedback signals be sent to test instrumentation, realize carried out under conditions of networking without true UE it is true
The test of flow.
Currently, being divided into downstream transmitter, uplink receiver and performance three to the test item of base station in 3GPP36.141 agreements
A chapters and sections have several test items per chapter.Three test items, the uplinks for having downstream transmitter intermodulation for being related to signal source test connect
All test items of receipts machine and all test items of performance.Therefore in the embodiment of the present invention, signal source is for row hair under test
It penetrates in three test items of machine intermodulation and sends interference signal, and in uplink receiving connects characteristic and all test items of performance chapters and sections,
It is needed to simulate UE transmission datas and interference signal according to test item, this signal source is by the instrument in the testing tool unit of test PC machine
Module of meter control is controlled by LAN.Wherein, the process flow of the two chapters and sections of uplink receiver and performance is almost the same,
Therefore it is all handled as uplink test item, only needs corresponding performance chapters and sections, harq feedbacks are sent from base station when needing to retransmit
Signal is to signal source.It can be with harq feedback protocols as defined in preset producer, for performance test chapters and sections in L2 test modules
The case where middle test item for needing to retransmit, L2 test modules can be decoded according to L1, sets up the agreement lattice of instrument producer formulation
The harq information of formula sends instrument to by harq feedback lines.
Frequency spectrograph is for receiving and demodulating the downlink data of base station to test dependence test item, including test downstream transmitter
All test items of chapters and sections, this instrument are also that the instrument control module in the testing tool unit by test PC machine passes through LAN
Come what is controlled.
The test system of the embodiment of the present invention use Luo Desi Watts company SMU 200A models signal sources and
FSQ8 model frequency spectrographs, are communicated by network interface, are called the function pair instrument in the libraries visa to be controlled, are realized the parameter to instrument
Setting and data read functions.When it is implemented, may be set in the provided interface of interface operation module of testing tool unit
There is the selection of middle meter type, the class of an instrument is established in code, replaces test instrumentation from now on, as long as adding the control of new instrument
Code processed.（Note：Test from now on replaces other producer's instrument and only needs to change the harq feedback protocols in L2 test modules,
Other interfaces are still effective）
When it is implemented, the problem synchronous with test instrumentation for being tested base station, adoptable is trigger line linkers
It stands to the mode of test instrumentation, in downlink test, base station sends out trigger synchronizing signals and 10M clock sync signals are connected to
Frequency spectrograph.In uplink test, base station sends out trigger synchronizing signals and 10M clock sync signals are connected to signal source.For property
The harq feedback problems that energy chapters and sections are related to, equally using trigger lines connection base station and signal source mode.L2 test modules can root
Rv the and ta information for feeding back to UE will be needed according to the SMU 200A models of Luo Desi Watts company according to the decoding cases received
Communication protocol generate 16 bits binary data stream by true L2 transmission go down, last instrument passes through trigger lines
Receive harq information.Wherein, rv indicates redundancy versions, is a parameter in the present invention, and version number is retransmitted for storing；ta
It indicates Timing Advance, is a parameter in the present invention, be used for the numerical value of resting period lead.
In the present invention, downlink source refers to the sources ETM, and uplink source is exactly URX message, is all stored in test PC machine as stake data
On.When it is implemented, two sources all include multiple files, send which file can be transmitted according to test interface in test process
Mark determine.For downlink source, testing tool unit is identified according to corresponding test item and will be deposited by the way of network interface communication
L2 test modules are sent to by the communication module of this unit in the ETM source datas of local test PC machine, after passing to true L2
True base station down flow is walked to send out signal from antenna opening.Antenna opening is that the signal of base station receives and emission port is in communication base
Popular saying in standing, antenna opening connect radio frequency matrix, radio frequency matrix continuous frequency band spectrum instrument, and such frequency spectrograph can solve downlink data.It is right
In uplink scheduling information（The big message of uplink source URX i.e. in the present invention）, equally by testing tool unit according to corresponding test item
The URX source datas of local test PC machine are sent to L2 test modules by mark by the communication module of this unit, are passed to true
True base station scheduling flow, DSP module are walked after L2（Digital Signal Processor, the modular unit of base station, number
Signal processing module）The upstream data sent out according to the scheduling information demodulated signal source.
In terms of data statistics, the data of downlink are obtained from frequency spectrograph, and PC machine is tested in the embodiment of the present invention and passes through net
Port communications are read using visa library functions and in the background process of testing tool unit, the decoding data of uplink in a base station by
DSP by MAC-PHY message interfaces is transmitted to L2 test modules after having solved, and L2 test modules pass through local with testing tool unit
Net is communicated by unified interface, and the backstage for finally arriving testing tool unit counts and judges.
When it is implemented, can in advance be stored in testing PC machine base station and test instrumentation configuration file, URX source files,
ETM source files.In embodiment, the text and some configuration files that the big message of uplink and downlink is housed in PC machine are tested.Wherein, text
Information refers to the big message datas of URX of uplink, the ETM source datas of downlink；Configuration file is base station and instrument（Signal source, frequency spectrograph,
Radio frequency matrix）The line loss value list and Judging index that configuration information, all test items are related to.
The process that testing tool unit is tested for tested base station is as follows,
Step 1, a pending test item is taken successively, is set by LAN according to the name identification of current test item
Set the corresponding test topology figure of radio frequency matrix；
Step 2, classification is judged according to the mark of current test item,
If current test item is downlink test item, the sources corresponding downlink ETM are sent by LAN from test PC machine
To the L2 test modules of tested base station, the true L2 in tested base station is passed to later and is issued to L1, L1 is sent to antenna opening, through penetrating
Frequency matrix is to frequency spectrograph；Frequency spectrograph is controlled according to the mark of current test item, corresponding data result is read from frequency spectrograph；
If current test item is uplink test item, corresponding uplink URX message is sent out by LAN from test PC machine
The L2 test modules for giving tested base station pass to the true L2 in tested base station and are issued to L1 later；According to current test item
Mark control signal source, sends corresponding useful signal and interference signal as upstream data, by radio frequency matrix be sent to by
The antenna opening for surveying base station, by L1 according to uplink URX message solution upstream datas；Decoding result is reported to true L2, true L2 by L1
Pass through L2 test modules, the parsing of L2 test modules obtains and is sent to testing tool unit by LAN after data result；
Step 3, the data result of the current test item received is done with corresponding index and is judged, whether met index
It is required that as a result, and by numerical value and judgement result shown in the list of interface；
Step 4, after current test item test, next pending test item is taken successively, until pending institute
There is test to complete.
It is provided in test PC machine when it is implemented, modular mode can be used in testing tool unit, such as operation is provided
The interface operation module at interface, the communication module communicated with base station, instrument control module, radio frequency matrix control module, number
According to processing module.Interface operation module, data processing module etc. can integration realizations.
The interface operation module, for providing a user operation interface and display data result, judgement result；It is specific real
Shi Shi, those skilled in the art can the operation interface that provides of self-defining interface operation module, such as can be filled out in operation interface
Write the basic configuration information of tested base station（Including center frequency point, bandwidth, cell ID, port number）, selection test event and cycle
The essential information of number, test instrumentation and radio frequency matrix（Configuration text）, initialize interface display is last testing base station
Information and test case.The essential information of radio frequency matrix generally comprises instrument IP address and different topology figure and test item
The line loss value of middle instrument.Test instrumentation（Signal source and frequency spectrograph）Essential information generally comprise instrument Vendor-Type（Such as sieve
This Watts of moral and Agilent）, instrument IP address and the corresponding line loss value of different topology figure.
The L2 test modules that communication module is used for piling in base station are communicated,
Instrument control module is used to that test instrumentation and read test data to be arranged, including is used to control signal by LAN
Source needs to simulate UE transmission useful signals and interference signal according to dependence test item, and passes through LAN and control frequency spectrograph reception
Corresponding data result is read with the downlink data of demodulation base station；
Radio frequency matrix control module is arranged for being communicated with radio frequency matrix and changes test topology figure, including be used for
Control command is sent by LAN and carries out topological diagram switching to radio frequency matrix, changes external wiring construction.
The data processing module is mainly included in downlink for carrying out determination processing to test item corresponding data result
The value read on frequency spectrograph is filtered out useful part and is converted to the index unit value of requirement by data processing module in test,
Index request is compared, obtains judgement result；When uplink is tested the data processing module data result that transmits L2 test modules into
Row analysis calculates, value of obtaining a result and judgement result.Acquired results can be used for after interface display.When it is implemented, ability
Field technique personnel can provide using testing tool unit as software, so that user installation uses.
Fig. 2 is a flow chart in the test system of the embodiment of the present invention, previously according to Fig. 1 mode connect it is tested
After base station, instrument, test PC machine, radio frequency matrix device, all devices are made to be in a LAN using interchanger, it can be by base
The trigger synchronizing signals and 10M clock sync signals stood are connected to signal source and frequency spectrograph, harq feedbacks by power splitter
Mouth is connected to signal source.Based on the testing tool unit of test PC machine, software mode can be used and execute following steps automatically：
Step S01 determines test item and corresponding testing time：Default setting can be used, or testing tool is passed through by user
The there is provided interface of unit interface operation module, configure be tested base station, instrument and radio frequency matrix essential information, select testing time
And test item.After beginning, according to the configuration at interface, all kinds of configuration informations are updated, refresh testing interface shows selected test item
With corresponding test index, test list is formed.
Step S02 takes a pending test item, test item can be extracted successively from test list, according to current test
The corresponding test topology figure of radio frequency matrix is arranged by LAN in the name identification of item, calls connecing for Nanjing Jie Xi companies offer
Mouth function.The test list refers to the list for determining that test item is formed in step S01.It can be by testing tool when specific implementation
Radio frequency matrix control module setting in unit is realized.
Step S03, according to current test item（case）Name identification carry out determined type, it is main include be uplink or under
Row test item calls corresponding test function.If test item is downlink test item, S04 is entered step, if test item is upper
Row test item, enters step S06.Test function can be pre-set according to the prior art, and different test items corresponds to different surveys
Trial function.
In step S03, if it is decided that the test item that current test item is downstream transmitter intermodulation, transmitter intermodulation is
Downlink tests particular term, needs to use signal source and frequency spectrograph simultaneously, then needs setting signal source to send interference signal, and in frequency
Corresponding data result is read on spectrometer, enters step S09.
Step S04 judges the ETM currently tested if test item is downlink test item（Test model）Source identifies, and will survey
Try PC machine locally corresponding ETM source files（That is the sources corresponding downlink ETM）The L2 tests of tested base station are sent to by LAN
Module passes to the true L2 in tested base station and is issued to L1 later, and L1 is sent to antenna opening by the BBU optical fiber being connect with RRU.
Antenna opening is exported through radio frequency matrix to frequency spectrograph.
It is special, it, will also be according to current test item if current test item is the test item of downstream transmitter intermodulation
Mark control signal source, sends interference signal as upstream data.
Step S05 identifies control frequency spectrograph according to test item, corresponding parameter is arranged, to frequency spectrograph read test as a result,
The display interface that interface operation module provides is reported to after result is carried out determination processing.When it is implemented, parameter can root at this
It is arranged according to base station and test item, such as according to center frequency point, bandwidth is arranged the case where base station, opens up according to test item is corresponding
Figure is flutterred line loss is arranged, frequency spectrograph enters corresponding test job.Generally according to the difference of test item, frequency spectrograph tests content
Difference, when specific implementation, can set according to test item demand.Subsequently into step S09.When it is implemented, mould can be controlled through instrument
Block controls frequency spectrograph.
Step S06 judges the URX currently tested if test item is uplink test item（Uplink receiving）Big message identifier,
The PC machine locally big message files of corresponding URX will be tested（That is uplink URX message）The L2 of tested base station is sent to by LAN
Test module passes to the true L2 in tested base station and is issued to L1 later, and L1 will solve upper line number according to the URX scheduling informations
According to.
Step S07 identifies control signal source according to test item, corresponding parameter is arranged, sends the corresponding useful signals of URX
Signal is sent to the RRU antenna openings of tested base station by the interference signal needed with test as upstream data by radio frequency matrix,
Upstream data is solved according to the URX scheduling informations by L1.It is similar with step S05, when it is implemented, parameter can be according to base station at this
It is arranged with test item.When it is implemented, signal source can be controlled through instrument control module.
Decoding result is reported to true L2 by step S08, L1, and true L2 passes through L2 test modules, L2 test module solutions
Analysis, separates required data value, and can carry out preliminary judgement（Such as Statistical Solutions mistake number, solution are to number）, by data knot
Fruit is sent to testing tool unit by LAN.
Step S09, the corresponding finger that testing tool unit requires the data result of the current test item received to this
Mark does and judges, whether can be met index request as a result, and by numerical value and judgement result output.When it is implemented, can
To be shown in the provided result interface list of interface operation module.
Step S10 after current test item test, checks that all test items judge whether all to be completed, is
Then enter S11, otherwise epicycle test does not complete also, returns to S02 and continues to test next test item.
Step S11, a wheel test terminate, and remaining cycle-index subtracts 1.
Step S12, whether judgement cycles left number is zero, is to terminate, and otherwise returns to S02 and continues next round test stream
Journey.
When it is implemented, process flow operation judges and the judgement of final numerical value can be realized by data processing module.
Can be seen that the test method of the embodiment of the present invention and system from above-mentioned flow can carry out multinomial survey with simultaneous selection
Examination, is tested, and can multiple loop test item by item automatically.The complex steps of artificial thread-changing are eliminated, and are solved manual
The error that calibration tape comes, improves test rate, saves a large amount of man power and material.For testing tool unit and base station
Communication aspects use the intermediate bridge mode of L2 test modules, both sides not to interfere with each other, and L2 test modules are a transparent transmission and meter
Number tool, is adapted to multiple base station software versions, just replaces test instrumentation at last and needs the code changed also very small, is
Preparation in advance has been done in the upgrading optimization of base station from now on.Harq feedback informations are sent to simulation UE's according to decoding cases
Test instrumentation, instrument can carry out data re-transmission and the adjustment of version according to the harq feedback informations, realize the survey of performance chapters and sections
Try the test of item.
Transparent transmission tool of the L2 test modules as base station and testing tool unit, by LAN come with testing tool unit
In communication module communicated, between the two can arrange an interactive structure and carry out issuing and reporting for data.
Those skilled in the art can sets itself when specific implementation.For the sake of ease of implementation, embodiment specific implementation is provided
It is as follows：
A control information structure body for being handed down to L2 test modules is defined in testing tool cell side：
typedef struct tag_MAC_TST_CONTROL_MSG
{
U32 cross_msg_type;The interaction message type of // testing tool unit and the L2 test modules under BS
U32 cross_msg_len;// big message-length
U32 bigmsg_serial_num;The serial number of // ten big message
U32 case_type;// test-types identify
U32 harq_ta_type;//harq and ta marks
U32 bak_fpga_time;Feedback delay time of // the baseband board to fpga16bit numbers
U32 fa_ta_window;// ta time windows
U32 usleep_time;// fpga feedback delay times
U32 preamble;// prach leading codes
U32 pd_awgn_etu_type;// prach AWGN or ETU70 patterns
U32 pd_speed_type;// prach is at a slow speed or high-speed mode
U32 prach_format;// prach formats
U32 test_flag;// test mark position
U32 receiver_flag;// receiver mark
U32 test_ta_flag;// for debugging ta switches
U32 transfer_flag;// transmitter mark
U32 pds_type;// pds types:cw0,cw1,pbch
U32 pucch_format;The format of // pucch
U32 harq_start_flag;//harq is identified
U32 high_train_flag;// high ferro identifies
U32 cell_id;// cell ID
U32 pucch_ack_limit;The thresholding of // PUCCH
}MAC_TST_CONTROL_MSG;
Type of message, data type and length and the mark and parameter of current test item needs are contained in this structure
Information.By taking the test of PUCCH format 1A as an example：It will be notified that the current test item of L2 test modules is in the control structure body
The test item of PUCCH format 1A identifies, it is desirable that and the big message of URX of the entitled PUCCH_1A of file, is the mark of receiver, and
Enclose the test threshold value of PUCCH.All parameter values are obtained from testing tool unit, may be for for different base stations
PUCCH threshold value it is different, user need to only change the threshold value of the PUCCH in configuration file, and it includes survey not have to modification
Try any code including tool unit.
A report information structure for being reported to testing tool unit is defined inside L2 test modules：
typedef struct tag_MAC_TST_141_REPORT_MSG
{
U8 msg_type;The interaction message type of // testing tool unit and the L2 test modules under BS
U32 tb_num_right;// PUSCH data decode correct number
U32 tb_num_wrong;The number of //PUSCH data decoding errors
U32 pd_preamble_right;// prach preamble solutions are to number
U32 pd_preamble_wrong;The wrong number of // prach preamble solutions
U32 pfa_fal_preamble_num;Prach number of // empty solution
U32 prach_test_frame_num;Frame number in the case of // void solution prach
U32 pucch_ack_check_num;The number of the PUCCH ACK detected in // normal solution
U32 pucch_nack_check_num;The number of the PUCCH NACK detected in // normal solution
U32 pucch_ack_num_total;The sum of //PUCCH ACK
U32 pucch_virtual_num;The number of the PUCCH ACK detected in the inspection of // void
U32 pucch_virtual_num_total;The data totalframes of PUCCH in the inspection of // void
U32 pucch_cqi_right_num;// PUCCH CQI the numbers detected
U32 pucch_cqi_wrong_num;// undetected PUCCH CQI numbers
U32 pusch_ack_total_num;// PUSCH ACK tales TTI
U32 pusch_ack_right_num;The number of PUSCH ACK is detected in // positive inspection
U32 pusch_ack_dtx_num;The number of ACK is detected in the inspection of // void
U32 pusch_ack_dtx_virtual_total_num;PUSCH data counts in the inspection of // void
}MAC_TST_141_REPORT_MSG;
Above described structure is the decoding cases that L2 test modules receive the L1 that true L2 is transmitted, for uplink receiver and
The test of performance characteristics chapters and sections test item.Include the decoding feelings of PUSCH, PUCCH, CQI, PUSCH ACK and PRACH in structure
Condition has counted decoded correct and mistake number.Testing tool unit does corresponding calculation processing after receiving the data packet
And result is shown on interface.
In addition, data processing module can also send beginning PUSCH countings, start PUCCH countings, hold in testing tool unit
Beginning PUSCH ACK counts, starts the counting of PRACH normal solutions, beginning PRACH void inspection counts, stops counting, the order letter that counting is reset
It ceases and corresponding parameter is processed after giving L2 test modules, L2 test modules to receive.
When it is implemented, software technology realization can be used in the testing tool unit in this test system, there is very strong expansion
Malleability.Software can be realized as the executable file of an exe, without installing other auxiliary softwares on test computer, without
Run Script, interface is friendly, easy to operate, as long as simple computer capacity uses.One-touch operation, later
There is no any operation, and fill in cycle-index before testing to carry out multiple loop test.Each test has terminated
Shown on interface at rear test result and judgement result are instant, after all tests can with selection result storing path,
It is preserved with the form of excel.There is end testing button containing test flag bit, test in software code, tested
In journey can interrupt test at any time, the debugging aid and production that this automated test tool unit can be as development phase
The stability test of product can be used for producing line volume production test from now on.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, under other any Spirit Essences for not violating the present invention and principle made by changes, modifications, substitutions, combinations, simplifications it is equal
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (3)
1. a kind of conformance test method for the base stations FDD-LTE, it is characterised in that：Setting is tested base station, radio frequency matrix, letter
Tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine are connected to an office by number source, frequency spectrograph and test PC machine
In the net of domain；The tested base station is equipped with L2 test modules, and testing tool unit, testing tool unit are equipped in the test PC machine
The process tested for tested base station is as follows,
Step 1, a pending test item is taken successively, is penetrated by LAN to be arranged according to the name identification of current test item
The corresponding test topology figure of frequency matrix；
Step 2, classification is judged according to the mark of current test item,
If current test item is downlink test item, from test PC machine by the sources corresponding downlink ETM by LAN be sent to by
The L2 test modules for surveying base station, pass to the true L2 in tested base station and are issued to L1, L1 is sent to antenna opening, through radio frequency square later
Battle array arrives frequency spectrograph；Frequency spectrograph is controlled according to the mark of current test item, corresponding data result is read from frequency spectrograph；
If current test item is uplink test item, corresponding uplink URX message is sent to by LAN from test PC machine
The L2 test modules of tested base station, pass to the true L2 in tested base station and are issued to L1 later；According to the mark of current test item
Signal source is controlled, corresponding useful signal and interference signal is sent as upstream data, tested base is sent to by radio frequency matrix
The antenna opening stood, by L1 according to uplink URX message solution upstream datas；Decoding result is reported to true L2, true L2 transparent transmissions by L1
Give L2 test modules, the parsing of L2 test modules obtains and is sent to testing tool unit by LAN after data result；
Step 3, the data result of the current test item received is done with corresponding index and is judged, whether met index request
As a result, and by data result and judgement result shown in the list of interface；
Step 4, after current test item test, next pending test item is taken successively, until pending all surveys
Item is tried to complete.
2. being used for the conformance test method of the base stations FDD-LTE according to claim 1, it is characterised in that：If current survey
Examination item is uplink test item, and belongs to performance chapters and sections, and harq feedback signals are sent to signal source from base station when needing to retransmit.
3. a kind of consistency testing system for the base stations FDD-LTE, it is characterised in that：Including tested base station, radio frequency matrix, letter
Tested base station, radio frequency matrix, signal source, frequency spectrograph and test PC machine are connected to an office by number source, frequency spectrograph and test PC machine
In the net of domain；The tested base station is equipped with L2 test modules, and testing tool unit is equipped in the test PC machine；
The testing tool unit include interface operation module, communication module, instrument control module, radio frequency matrix control module and
Data processing module；
The communication module, for being communicated with L2 test modules；
The instrument control module needs simulation UE transmissions useful for controlling signal source by LAN according to dependence test item
Signal and interference signal, and the corresponding data of downlink data reading that frequency spectrograph received and demodulated base station are controlled by LAN
As a result；
The radio frequency matrix control module carries out topological diagram switching for sending control command by LAN to radio frequency matrix,
Wiring construction outside changing；
The interface operation module, for providing a user operation interface and display data result and judgement result；
The data processing module, for carrying out determination processing to test item corresponding data result.
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| CN107889139B (en) * | 2016-09-30 | 2021-06-11 | 中国移动通信有限公司研究院 | Signal test system and method |
| CN107769865B (en) * | 2017-08-24 | 2020-09-25 | 江阴市创新气门嘴有限公司 | Automatic test method for radio frequency parameters of Bluetooth module |
| CN108039923B (en) * | 2017-12-25 | 2021-06-08 | 摩比天线技术（深圳）有限公司 | Multi-band N-order intermodulation test method and system |
| CN110505649B (en) * | 2018-05-17 | 2021-04-23 | 大唐移动通信设备有限公司 | Automatic testing method and system |
| CN110536333B (en) * | 2018-05-25 | 2023-03-10 | 成都鼎桥通信技术有限公司 | Method and system for testing base station radio remote unit |
| CN112019222A (en) * | 2020-09-01 | 2020-12-01 | 上海龙旗科技股份有限公司 | Stray radiation testing method and system for transmitter |
| CN114003549B (en) * | 2021-10-29 | 2023-08-01 | 四川恒湾科技有限公司 | 5G radio frequency unit testing method and device based on heterogeneous SOC |
| CN114466395A (en) * | 2022-01-11 | 2022-05-10 | 三维通信股份有限公司 | Method and device for testing performance of base station, storage medium and electronic device |
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