CN107360584A - A kind of RRU test systems and method - Google Patents
A kind of RRU test systems and method Download PDFInfo
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- CN107360584A CN107360584A CN201710765955.XA CN201710765955A CN107360584A CN 107360584 A CN107360584 A CN 107360584A CN 201710765955 A CN201710765955 A CN 201710765955A CN 107360584 A CN107360584 A CN 107360584A
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- H—ELECTRICITY
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Abstract
The invention belongs to mobile communication technology field, and disclosing a kind of RRU test systems and method, system includes：RRU to be tested, calculation machine, attenuator, power splitter, frequency spectrograph, signal source, interchanger；Method includes：Start RRU；RRU enters test mode, performs DDR self-tests；RRU receives test command；RRU carries out downlink test；RRU carries out uplink test；RRU carries out optical link test.The present invention solves the problems, such as the complexity of the test of RUU equipment in the prior art and difficulty is larger, the wasting of resources caused by test is larger, test needs the extra equipment of newly-increased exploitation, having reached reduces the complexity and difficulty of test, reduces test resource waste, the technique effect without the extra equipment of newly-increased exploitation.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of RRU test systems and method.
Background technology
With LTE extensive commercialization, the demand of RRU device is sharply increased, and the odd-numbered day of each RRU device supplier is produced
New demand can be proposed, and the test of RRU device turns into the bottleneck for restricting RRU device odd-numbered day production capacity.
Carrying out RRU tests at present has two kinds of general ways：One kind is to build eNodeB systems, passes through BBU optical interface
Connection RRU sends downstream signal and receives upward signal and tested.This method, firstly, since eNodeB network elements are more, system
Complexity is built, location difficulty when testing abnormal, therefore the complexity of test and difficulty can be caused larger；Secondly, as the odd-numbered day produces
The increase of energy is, it is necessary to which substantial amounts of eNodeB systems carry out RRU tests, therefore can cause the waste of resource.Another kind is exploitation mould
Intend BBU systems and substitute eNodeB systems, tested by simulating IR interface functions transmission downstream signal and receiving upward signal,
The shortcomings that this method is the equipment for needing newly-increased exploitation extra.
The content of the invention
The embodiment of the present application solves RUU equipment test in the prior art by providing a kind of RRU test systems and method
Complexity and the problem of difficulty is larger, the wasting of resources is larger, test needs newly-increased exploitation extra equipment caused by test.
The embodiment of the present application provides a kind of RRU test systems, including：RRU to be tested, calculation machine, attenuator, work(point
Device, frequency spectrograph, signal source, interchanger；
Upper strata test software is installed in the calculation machine；
The RRU to be tested, the calculation machine, the frequency spectrograph, the signal source respectively by netting twine with it is described
Interchanger is connected；
The RRU to be tested, the attenuator, the power splitter pass sequentially through RF cable connection；
The power splitter is connected with the frequency spectrograph, the signal source respectively by RF cable；
The Trig ports of the RRU to be tested are connected with the Trig ports of the frequency spectrograph, the Ref of the RRU to be tested
Port is connected with the 10M of the frequency spectrograph with reference to output signal port；
The 10M reference-input signals port of the frequency spectrograph is connected with the 10M of the signal source with reference to output signal port；
The RRU to be tested connects the receiving terminal and transmitting terminal of the first optical port by optical fiber；The RRU to be tested passes through light
The receiving terminal and transmitting terminal of fibre the second optical port of connection.
Preferably, the RRU to be tested includes：
Central processor CPU, flash storage, Double Data Rate synchronous DRAM DDR, field-programmable door
Array FPGA, downlink module, uplink modules, optical link module；
The FPGA is connected by local bus Local BUS with CPU, and the FPGA is connected with the DDR, the FPGA
It is connected respectively with downlink module, uplink modules, optical link module；
The CPU is connected with Flash, and descending test data is solidificated in Flash；
The FPGA includes MIG modules, DUC modules, CFR modules, DPD module, DDC modules, IR interfaces.
On the other hand, the embodiment of the present application provides a kind of RRU method of testings, comprises the following steps：
Start RRU to be tested, test mode order is transmitted into by upper strata test software；
The RRU receptions to be tested are described to enter test mode order, into test mode, performs DDR self-tests；
If the DDR self-tests are not by exporting DDR fault messages and exiting test；If the DDR self-tests by,
The upper strata test software sends test command, and the test command includes downlink test order, uplink test is ordered
Make, optical link test command；
The RRU to be tested receives the test command, carries out link test, and the link test is surveyed including downlink
Examination, uplink test, optical link test；
The downlink test includes：RRU configurating downlink parameters, DDR, which starts, sends descending test data function, test
Computer controls frequency spectrograph to carry out down link signal index test by network interface；
The uplink test includes：RRU collocating uplink parameters, calculation machine are sent by network interface control signal source
Up test data is to the RRU to be tested, DDR log-on data acquisition functions, by the data transfer of collection to the tester
Calculation machine, uplink signal index test is carried out by the calculation machine；
The connectedness of optical link is tested in the optical link test by the way of optical fiber loopback.
Preferably, the DDR self-tests include：Test DDR and read and write whether normal, self-test logic testing data writing, reading,
Whether multilevel iudge data writing, reading is consistent.
Preferably, the RRU configurating downlinks parameter includes configuration RRU carrier frequencies, carrier bandwidths, power output.
Preferably, the descending test data being solidificated in Flash is passed through Local by CPU in the downlink test
BUS and MIG modules are imported in DDR；
After FPGA is handled the descending test data via DUC modules, CFR modules, DPD module, send under
Line link module simultaneously exports radiofrequency signal；
Upper strata test software controls the frequency spectrograph to carry out down link signal index test, including carrier power, adjacent letter
Road power ratio, error vector magnitude；
DDR sending functions are closed after testing and recording.
Preferably, the RRU collocating uplinks parameter includes configuration RRU carrier frequencies, carrier bandwidths.
Preferably, CPU controls FPGA internal datas receiving module will by Local BUS in the uplink test
The data of DDC modules output are imported in DDR by MIG modules；
Data in DDR are uploaded to the calculation machine by CPU；
Upper strata test software carries out uplink signal index test, including whether testing uplink data can demodulate；
DDR data acquisition functions are closed after testing and recording.
Preferably, the optical link test includes：
RRU configures optical link parameter；
CPU sets IR interfaces to start 8B10B codes hair number in optical link test；
IR interfaces receive wrong pattern number in number recognition cycle；
CPU gathers wrong pattern number and transmitted to calculation machine；
Upper strata test software record pattern wrong data；
Close IR interfaces hair number and receive number identification function.
Preferably, it is 10Gbps that the RRU configurations optical link parameter, which includes configuration optical port data rate,.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages：
In the embodiment of the present application, only need RRU and test instrumentation to be tested that RRU system testings can be achieved, without building
Complicated test system (such as eNodeB systems), it is not necessary to extra equipment (such as analog BBU system) is developed, therefore, the present invention
The complexity and difficulty of RUU equipment test are significantly reduced, reduces the wasting of resources of test, exploitation need not be increased newly additionally
Equipment.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the technical scheme in the present embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are one embodiment of the present of invention, for this area
For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of RRU test systems provided in an embodiment of the present invention；
Fig. 2 is the internal frame diagram of RRU in a kind of RRU test systems provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the RRU method of testings provided in the embodiment of the present invention.
Embodiment
The embodiment of the present application solves RUU equipment test in the prior art by providing a kind of RRU test systems and method
Complexity and the problem of difficulty is larger, the wasting of resources is larger, test needs newly-increased exploitation extra equipment caused by test.
The technical scheme of the embodiment of the present application is in order to solve the above technical problems, general thought is as follows：
A kind of RRU test systems, including：RRU to be tested, calculation machine, attenuator, power splitter, frequency spectrograph, signal
Source, interchanger；
Upper strata test software is installed in the calculation machine；
The RRU to be tested, the calculation machine, the frequency spectrograph, the signal source respectively by netting twine with it is described
Interchanger is connected；
The RRU to be tested, the attenuator, the power splitter pass sequentially through RF cable connection；
The power splitter is connected with the frequency spectrograph, the signal source respectively by RF cable；
The Trig ports of the RRU to be tested are connected with the Trig ports of the frequency spectrograph, the Ref of the RRU to be tested
Port is connected with the 10M of the frequency spectrograph with reference to output signal port；
The 10M reference-input signals port of the frequency spectrograph is connected with the 10M of the signal source with reference to output signal port；
The RRU to be tested connects the receiving terminal and transmitting terminal of the first optical port by optical fiber；The RRU to be tested passes through light
The receiving terminal and transmitting terminal of fibre the second optical port of connection.
A kind of RRU method of testings, comprise the following steps：
Start RRU to be tested, test mode order is transmitted into by upper strata test software；
The RRU receptions to be tested are described to enter test mode order, into test mode, performs DDR self-tests；
If the DDR self-tests are not by exporting DDR fault messages and exiting test；If the DDR self-tests by,
The upper strata test software sends test command, and the test command includes downlink test order, uplink test is ordered
Make, optical link test command；
The RRU to be tested receives the test command, carries out link test, and the link test is surveyed including downlink
Examination, uplink test, optical link test；
The downlink test includes：RRU configurating downlink parameters, DDR, which starts, sends descending test data function, test
Computer controls frequency spectrograph to carry out down link signal index test by network interface；
The uplink test includes：RRU collocating uplink parameters, calculation machine are sent by network interface control signal source
Up test data is to the RRU to be tested, DDR log-on data acquisition functions, by the data transfer of collection to the tester
Calculation machine, uplink signal index test is carried out by the calculation machine；
The connectedness of optical link is tested in the optical link test by the way of optical fiber loopback.
In the embodiment of the present application, only need RRU and test instrumentation to be tested that RRU system testings can be achieved, without building
Complicated test system (such as eNodeB systems), it is not necessary to extra equipment (such as analog BBU system) is developed, therefore, the present invention
The complexity and difficulty of RUU equipment test are significantly reduced, reduces the wasting of resources of test, exploitation need not be increased newly additionally
Equipment.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
Technical scheme is stated to be described in detail.
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
First, system
Such as Fig. 1, the present apparatus includes calculation machine, RRU to be tested, attenuator, power splitter, frequency spectrograph, signal source, exchanged
Machine.
Wherein, upper strata test software is installed in the calculation machine.
The calculation machine, the RRU to be tested, the frequency spectrograph, the signal source respectively by netting twine with it is described
Interchanger is connected；The RRU to be tested, the attenuator, the power splitter pass sequentially through RF cable connection；The power splitter
It is connected respectively with the frequency spectrograph and the signal source by RF cable.
The Trig ports of the RRU to be tested are connected with the Trig ports of the frequency spectrograph, for frequency spectrograph with it is to be tested
RRU is synchronous.The Ref ports of the RRU to be tested are connected with the 10M of the frequency spectrograph with reference to output signal port, the frequency spectrum
The 10M reference-input signals port of instrument is connected with the 10M of the signal source with reference to output signal port, for signal source, frequency spectrum
Instrument, RRU to be tested are homologous.
The RRU to be tested connects the receiving terminal and transmitting terminal of the first optical port by optical fiber；The RRU to be tested passes through light
The receiving terminal and transmitting terminal of fibre the second optical port of connection.
The internal frame diagram of the RRU to be tested as shown in Fig. 2 including：It is central processor CPU, flash storage, double
Rate synchronization dynamic RAM DDR, field-programmable gate array
FPGA, downlink module, uplink modules, optical link module；
The FPGA is connected by local bus Local BUS with CPU, and the FPGA is connected with the DDR, the FPGA
It is connected respectively with downlink module, uplink modules, optical link module；
The CPU is connected with Flash, and descending test data is solidificated in Flash；
The FPGA includes MIG modules, DUC modules, CFR modules, DPD module, DDC modules, IR interfaces.
2nd, method
The flow chart of RRU method of testings is as shown in figure 3, following using RRU device to be tested as China Mobile's D frequency ranges
(2575M-2635M), radio frequency output full power are 40dBm, and sensitivity index requirement is -103.5dbm, and optical port data are
10Gbps, exemplified by illustrate, specifically comprise the following steps：
Step 1, start RRU to be tested, test mode order is transmitted into by upper strata test software.
When it is implemented, RRU starts (step 110), whether RRU judges RRU by inquiring about RRU state (steps 120)
For test mode (step 130), if not being test mode, then normally start RRU (steps 131).
Step 2, RRU enter test mode, perform DDR self-tests.
When it is implemented, the DDR self-tests (step 140), which includes test DDR, reads and writes whether normal, self-test logic testing number
According to writing, reading, and whether the write-in of multilevel iudge data and reading are consistent.By whether unanimously judge whether DDR self-tests pass through
(step 150), if inconsistent, export DDR fault message (steps 151).
Step 3, upper strata test software send downlink, up-link and optical link test command successively.
When it is implemented, entering test link selection (step 160), RRU receives the test life that upper strata test software issues
Order, descending test (step 170) is determined whether, if so, descending test is then carried out, if it is not, then determining whether up test
(step 180)；If so, then enter up test, if it is not, then determining whether that optical link tests (step 190)；Or wait to be measured
Try link selection input.
Step 4, RRU carry out descending test, start the descending hair number functions of DDR, and test main frame controls frequency spectrograph by network interface
Carry out down link signal index test.
When it is implemented, RRU configurating downlink parameter (steps 171), include configuration RRU carrier frequency difference according to embodiment
For 2585M, 2605M and 2625M, carrier bandwidths 60M, power output 40dbm；Complete, with postponing, it is descending to start DDR transmissions
Test data function (step 172), the test data are solidificated in the Flash of CPU peripheries, are preserved and are used in the case of system cut-off
User data.DDR sends descending test data, and CPU first passes through the test data being solidificated in Flash between FPGA
The MIG modules of example are imported with carry in the DDR under FPGA inside Local BUS and FPGA；After completing data importing, FPGA
Internal data sending module by test data via digital signal processing module DUC (Digital Up Convert), (crest factor declines CFR
Subtract), downlink module output radiofrequency signal is output to after DPD (digital pre-distortion).Upper strata test software control frequency spectrograph is surveyed
Power, side channel work(when the lower row index (step 173) of examination according to embodiment including carrier frequency is 2585M, 2605M and 2625M
Rate ratio (ACPR), error vector magnitude (EVM), and record index situation；It is completed, closes DDR hair number function (steps
174)。
Step 5, after the completion of descending test, system carries out up index test, and upper strata test software is controlled by network interface to be believed
Number source sends data to RRU, and RRU collection upstream datas upload to upper strata test software and are demodulated processing.
When it is implemented, RRU collocating uplink parameter (steps 181), include configuration RRU carrier frequency difference according to embodiment
For 2585M, 2605M and 2625M, carrier bandwidths 60M；Complete with postponing, upper strata test software passes through network interface control signal source
Signal that LTE up test source data output power is -101.5dbm is sent to RRU；Upper strata test software control RRU starts
DDR collections are input to DDC and the data (step 182) after DDC is handled through data feedback channel；During implementation, upper strata test software hair
CPU is arrived in order of losing one's life, and CPU controls FPGA internal datas receiving module by DDC (the lower changes of numeral by the Local BUS between FPGA
Frequently the data of output are imported into DDR by the MIG modules of example inside FPGA)；After the completion of importing, CPU is by the data in DDR
Upload to test main frame (step 183)；Complete after uploading, upper strata test software testing uplink index (step 184), embodiment is
Whether testing uplink data can demodulate, and record demodulation case；It is completed, closes DDR data acquisition function (steps 185).
Step 6, after the completion of uplink test, system carries out optical link test, and optical port 1 and optical port 2 use optical fiber loopback
Mode, test optical link connectivity.
When it is implemented, RRU configures optical link parameter (step 191), including configuration optical port data rate is 10Gbps, is surveyed
Examination data pattern is 8B10B codes；CPU sets IR interfaces (BBU and RRU interface) to start 8B10B patterns hair number (step 192)；
IR interfaces receive wrong pattern number (step 193) in number recognition cycle T；CPU gathers pattern number of errors and transmitted to upper strata and surveys
Try software (step 194)；Upper strata test software record pattern wrong data；It is completed, closes IR interfaces hair number and receive number and know
Other function (step 195).
Step 7, complete RRU test (steps 200).
Upper strata test software is according to Step 4: Step 5: the test data that step 6 records exports downlink, uplink
Road and optical link test result complete RRU to be tested test.
A kind of RRU test systems and method provided in an embodiment of the present invention comprise at least following technique effect：
In the embodiment of the present application, only need RRU and test instrumentation to be tested that RRU system testings can be achieved, without building
Complicated test system (such as eNodeB systems), it is not necessary to extra equipment (such as analog BBU system) is developed, therefore, the present invention
The complexity and difficulty of RUU equipment test are significantly reduced, reduces the wasting of resources of test, exploitation need not be increased newly additionally
Equipment.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (10)
- A kind of 1. RRU test systems, it is characterised in that including：RRU to be tested, calculation machine, attenuator, power splitter, frequency spectrum Instrument, signal source, interchanger；Upper strata test software is installed in the calculation machine；The RRU to be tested, the calculation machine, the frequency spectrograph, the signal source are exchanged by netting twine with described respectively Machine is connected；The RRU to be tested, the attenuator, the power splitter pass sequentially through RF cable connection；The power splitter is connected with the frequency spectrograph, the signal source respectively by RF cable；The Trig ports of the RRU to be tested are connected with the Trig ports of the frequency spectrograph, the Ref ports of the RRU to be tested It is connected with the 10M of the frequency spectrograph with reference to output signal port；The 10M reference-input signals port of the frequency spectrograph is connected with the 10M of the signal source with reference to output signal port；The RRU to be tested connects the receiving terminal and transmitting terminal of the first optical port by optical fiber；The RRU to be tested is connected by optical fiber Connect the receiving terminal and transmitting terminal of the second optical port.
- 2. RRU test systems according to claim 1, it is characterised in that the RRU to be tested includes：Central processor CPU, flash storage, Double Data Rate synchronous DRAM DDR, field-programmable gate array FPGA, downlink module, uplink modules, optical link module；The FPGA is connected by local bus Local BUS with CPU, and the FPGA is connected with the DDR, the FPGA difference It is connected with downlink module, uplink modules, optical link module；The CPU is connected with Flash, and descending test data is solidificated in Flash；The FPGA includes MIG modules, DUC modules, CFR modules, DPD module, DDC modules, IR interfaces.
- 3. a kind of RRU method of testings, it is characterised in that comprise the following steps：Start RRU to be tested, test mode order is transmitted into by upper strata test software；The RRU receptions to be tested are described to enter test mode order, into test mode, performs DDR self-tests；If the DDR self-tests are not by exporting DDR fault messages and exiting test；If the DDR self-tests pass through described Upper strata test software sends test command, and the test command includes downlink test order, uplink test order, light Link test order；The RRU to be tested receives the test command, carries out link test, the link test include downlink test, Uplink test, optical link test；The downlink test includes：RRU configurating downlink parameters, DDR, which starts, sends descending test data function, measuring and calculation Machine controls frequency spectrograph to carry out down link signal index test by network interface；The uplink test includes：RRU collocating uplink parameters, calculation machine are sent up by network interface control signal source Test data is to the RRU to be tested, DDR log-on data acquisition functions, by the data transfer of collection to the calculation machine, Uplink signal index test is carried out by the calculation machine；The connectedness of optical link is tested in the optical link test by the way of optical fiber loopback.
- 4. RRU method of testings according to claim 3, it is characterised in that the DDR self-tests include：Test DDR, which reads and writes, is No normal, self-test logic testing data writing, reading, whether multilevel iudge data writing, reading consistent.
- 5. RRU method of testings according to claim 3, it is characterised in that the RRU configurating downlinks parameter includes configuration RRU carrier frequencies, carrier bandwidths, power output.
- 6. RRU method of testings according to claim 3, it is characterised in that CPU will be solidificated in the downlink test Descending test data in Flash is imported in DDR by Local BUS and MIG module；After FPGA is handled the descending test data via DUC modules, CFR modules, DPD module, send to descending chain Road module simultaneously exports radiofrequency signal；Upper strata test software controls the frequency spectrograph to carry out down link signal index test, including carrier power, side channel work( Rate ratio, error vector magnitude；DDR sending functions are closed after testing and recording.
- 7. RRU method of testings according to claim 3, it is characterised in that the RRU collocating uplinks parameter includes configuration RRU carrier frequencies, carrier bandwidths.
- 8. RRU method of testings according to claim 3, it is characterised in that CPU passes through in the uplink test Local BUS control FPGA internal datas receiving module to import the data that DDC modules export in DDR by MIG modules；Data in DDR are uploaded to the calculation machine by CPU；Upper strata test software carries out uplink signal index test, including whether testing uplink data can demodulate；DDR data acquisition functions are closed after testing and recording.
- 9. RRU method of testings according to claim 3, it is characterised in that the optical link test includes：RRU configures optical link parameter；CPU sets IR interfaces to start 8B10B codes hair number in optical link test；IR interfaces receive wrong pattern number in number recognition cycle；CPU gathers wrong pattern number and transmitted to calculation machine；Upper strata test software record pattern wrong data；Close IR interfaces hair number and receive number identification function.
- 10. RRU method of testings according to claim 9, it is characterised in that the RRU configurations optical link parameter includes matching somebody with somebody It is 10Gbps to put optical port data rate.
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| CN113271619A (en) * | 2020-02-17 | 2021-08-17 | 上海原动力通信科技有限公司 | ACPR test method, device, system, electronic equipment and storage medium |
| CN113271619B (en) * | 2020-02-17 | 2023-07-18 | 上海原动力通信科技有限公司 | ACPR test method, device, system, electronic equipment and storage medium |
| WO2022087818A1 (en) * | 2020-10-27 | 2022-05-05 | 罗森伯格技术有限公司 | System and method for testing radio remote unit |
| CN114499708A (en) * | 2020-10-27 | 2022-05-13 | 罗森伯格技术有限公司 | System and method for testing radio remote unit |
| CN114499708B (en) * | 2020-10-27 | 2024-06-21 | 普罗斯通信技术（苏州）有限公司 | System and method for testing remote radio unit |
| EP4068870A1 (en) * | 2021-03-31 | 2022-10-05 | Radisys India Private Limited | Systems and method of time-synchronisation of a wireless system |
| CN116760484A (en) * | 2023-08-22 | 2023-09-15 | 北京唯得科技有限公司 | Test system, method, medium and equipment of TDD system |
| CN116760484B (en) * | 2023-08-22 | 2023-10-17 | 北京唯得科技有限公司 | Test system, method, medium and equipment of TDD system |
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