CN113630191A - Radio frequency test method and system of multi-channel equipment - Google Patents
Radio frequency test method and system of multi-channel equipment Download PDFInfo
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Abstract
The invention discloses a radio frequency test method and a radio frequency test system of multi-channel equipment, wherein the method comprises the following steps: executing the test case; configuring a corresponding test mode according to the test case; configuring a corresponding test template according to the test mode; traversing all channels to be tested, and carrying out radio frequency index test on the channels according to the test template; if the test case corresponds to a plurality of test modes, switching the next test mode, reconfiguring the corresponding test template, and traversing all channels to be tested to perform radio frequency index test; and if the untested test case exists, switching to the next test case, and repeating the steps. The testing method and the testing system can shorten the testing execution time, improve the testing and production efficiency, improve the instrument use efficiency, automate the repeated process and save the manpower.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a radio frequency test method and a radio frequency test system for multi-channel equipment.
Background
At present, with the development of 5G technology, there are more and more multi-channel radio frequency devices, and meanwhile, the demand of indoor base stations is also more and more, in the research and development test of radio frequency devices, a system with a particularly large number of channels is verified, all use cases need to be tested on each radio frequency channel, the total time consumption of the execution use cases is particularly long, and after one channel is tested, a radio frequency line needs to be manually reconnected to the next channel to perform all use case tests.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for testing a radio frequency of a multi-channel device, which can automatically test a required radio frequency index for a channel to be tested, shorten the test execution time, improve the test efficiency, and reduce the human input.
In order to solve the above technical problem, a first aspect of the present invention provides a radio frequency test method for a multi-channel device, including executing a test case; configuring a corresponding test mode according to the test case; configuring a corresponding test template according to the test mode; traversing all channels to be tested, and carrying out radio frequency index test on the channels according to the test template; if the test case corresponds to a plurality of test modes, switching the next test mode, reconfiguring the corresponding test template, and traversing all channels to be tested to perform radio frequency index test; and if the untested test case exists, switching to the next test case, and repeating the steps.
In some embodiments, the test mode is used to configure test parameters of the device under test.
In some embodiments, the test template is configured to configure test parameters of a test module, and the test module is configured to perform a radio frequency indicator test of a channel.
In some embodiments, the traversing all channels to be tested and performing the radio frequency index test on the channels according to the test template includes: selecting a channel to be tested, and carrying out radio frequency index test on the channel according to a test template; switching to the next channel to be tested, and carrying out radio frequency index test on the channel according to the test template; until all the channels to be tested are tested.
In some embodiments, the method further comprises displaying and recording the test results of all channels; marking a channel which fails the test according to the test result; and manually or automatically carrying out at least one radio frequency index test again on the channel with the failed test.
In some embodiments, the marking of the channel which fails the test according to the test result includes: and marking by lighting the LED lamp corresponding to the channel with the failed test.
In some embodiments, the traversing all channels to be tested and performing the radio frequency index test on the channels according to the test template includes: the channel to be tested is all or part of the channel of the device to be tested.
In a second aspect of the present invention, there is provided a test system for a multi-channel device, comprising: the control module is used for executing the test case and controlling the tested equipment to configure a corresponding test mode and switch the test mode according to the test case; the test module is used for controlling the test module to configure a test template according to the test mode and controlling the channel switching module to switch channels; the test module is used for configuring a corresponding test template according to the test mode and executing the radio frequency index test of the channel according to the test template; and the channel switching module is used for executing channel selection and/or switching.
In some embodiments, the control module comprises: the mode control unit is used for controlling the equipment to configure a corresponding test mode according to the test case and controlling the tested equipment to switch the test mode under the condition that the test case corresponds to a plurality of test modes; the channel control unit is used for controlling the channel switching module to select and/or switch the channel to be tested; and the test control unit is used for controlling the test module to configure the test template according to the test module.
In some embodiments, the display module is configured to display the test results of all channels; the recording module is used for recording the test results of all the channels; the marking module is used for marking the channel which fails the test according to the test result; and the marking module marks the LED lamps corresponding to the channels with failed test by lighting.
Compared with the prior art, the invention has the beneficial effects that: the testing method and the testing system can shorten the testing execution time, improve the testing and production efficiency, improve the instrument use efficiency, automate the repeated process and save the manpower.
Drawings
Fig. 1 is a block diagram of a radio frequency test system of a multi-channel device according to a first embodiment of the present invention;
fig. 2 is a block diagram of a control module of a radio frequency test system of a multi-channel device according to a first embodiment of the present invention;
fig. 3 is a schematic connection diagram of a radio frequency test system of a multi-channel device and a device under test according to a first embodiment of the present invention;
fig. 4 is a connection block diagram of the radio frequency test system of the multi-channel device and the device under test according to the first embodiment of the present invention;
fig. 5 is a block diagram of a device under test according to a first embodiment of the present invention;
fig. 6 is a flowchart of a radio frequency testing method of a multi-channel device according to a second embodiment of the present invention;
fig. 7 is a flowchart of a radio frequency testing method of a multi-channel device according to a third embodiment of the present invention;
fig. 8 is a flowchart of a radio frequency test method of a multi-channel device according to a fourth embodiment of the present invention.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a radio frequency test method and a radio frequency test system for multi-channel equipment, which are used for radio frequency index test of the multi-channel equipment (such as a base station or a terminal).
Example one
FIG. 1 schematically shows a radio frequency test system for a multi-channel device according to an embodiment of the invention. As shown in fig. 1, a test system of a multi-channel device includes: the device comprises a control module 10, a test module 20, a channel switching module 30, a display module 40, a recording module 50 and a marking module 60.
The control module 10 is configured to execute a test case, and the control module 10 is connected to the test module 20, the channel switching module 30, and the device under test 70 (in this embodiment, a base station is used as the device under test 70).
As shown in fig. 2, the control module 10 includes a mode control unit 11, a channel control unit 12, and a test control unit 13; the mode control unit 11 is configured to control the device under test to configure a corresponding test mode according to the test case, and control the device under test 70 to switch the test mode when the test case corresponds to a plurality of test modes.
And a channel control unit 12 for controlling the channel switching module 30 to select and/or switch the channel to be tested.
And the test control unit 13 is configured to control the test module 20 to configure the test template according to the test mode.
As shown in fig. 3 and 4, the test module 20 is connected to the control module 10, the channel switching module 30, and the channel switching module 30, respectively, and the test module 20 is configured to receive a control instruction of the test control unit 13, initialize a test parameter of the test module 20 according to a test template corresponding to the configuration of the test mode, and execute a radio frequency index test of a channel according to the test template. The test module 20 comprises a first signal source 21, a second signal source 22, a third signal source 23, a spectrometer 24, a plurality of DC isolators 25, a plurality of attenuators 26 and a combiner 27, wherein one end of the first signal source 21 is communicated with the device to be tested 70, and the other end of the first signal source is connected with the DC isolators 25 and the attenuators 26 and then is connected with the combiner 27; one end of the second signal source 22 is connected to the device under test 70, and the other end is connected to the combiner 27 after being connected to the dc isolator 25 and the attenuator 26; one end of the third signal source 23 is connected to the device under test 70, and the other end is connected to the combiner 27 after being connected to the dc isolator 25 and the attenuator 26; one end of the frequency spectrograph 24 is communicated with the tested device 70, the other end is connected with the combiner 27 after being respectively connected with the DC isolator 25 and the attenuator 26, and the combiner 27 is also connected with the channel switching module 30; namely, the first signal source 21, the second signal source 22, the third signal source 23 and the spectrometer 24 are all connected to the channel switching module 30 through the combiner 27. Wherein the first signal source 21 is used to generate FRC signal, the second signal source 22 is used to generate modulated interference signal, and the third signal source 23 is used to generate CW interference signal.
As shown in fig. 1, 3 and 4, the channel switching module 30 is connected to the test module 20 and the control module 10, and is connected to all the RRU channels of the device under test 70, and the channel switching module 30 is configured to receive an instruction of the channel control unit 12, and perform channel selection and/or switching according to the instruction; for example, according to the instruction of the channel control unit 12, the channel with channel number 1 is selected as the channel to be tested, and after the channel 1 is tested, the channel is switched to the channel 2 for testing until all the channels to be tested are traversed. Specifically, the channel switching module 30 usually uses an electronic switch or a mechanical switch to realize channel switching, and the time for the electronic switch to switch the channel is: less than 1ms, the realization of the mechanical switch switching channel: less than 1 s.
As shown in fig. 1, the display module 40 is connected to the test module 20, and is configured to obtain the test result from the test module 20 and display the test results of all channels.
As shown in fig. 1, the recording module 50 is connected to the testing module 20, and is configured to obtain the testing result from the testing module 20 and record the testing results of all channels.
In some embodiments, the control module 10, the display module 40 and the recording module 50 may be integrated into a device, such as a computer, the control module 10 is a CPU for power, the display module 40 is a display screen of the computer, and the recording module 50 is a memory of the computer.
As shown in fig. 1, the marking module 60 is connected to the control module 10 and connected to the indicator light unit on the channel switching module 30, the indicator light unit includes LED lights corresponding to each channel, the control module 10 can read the channel that fails to be tested in the test result and send a signal to the marking module 60, and the marking module 60 lights the LED light corresponding to the channel that fails to be tested to realize the marking function, so that the user can visually see which channel is the channel that fails to be tested.
As shown in fig. 3-5, the device under test 70 may be a base station or a terminal, fig. 5 is a structural block diagram of a 5G base station, an AU of the 5G base station is connected with 8 EUs, each EU is connected with 8 RRUs, and the RRUs are multi-channel RRUs. The AU is also connected to GPS for synchronization.
The system in this embodiment can realize the required radio frequency index of automatic test after the connection is accomplished, automatic switch test module of equipment under test 70, automatic switch test module 20's test template, the passageway that awaits measuring need not artifical plug connecting wire many times and the artifical information source that sets up, practices thrift the latency of environment construction time and artifical configuration information source, protects the instrument, reduces the error, can reduce the time of calibration initialization.
Example two
Fig. 6 schematically shows a radio frequency testing method for a multi-channel device according to an embodiment of the present invention, after a radio frequency testing system of the multi-channel device is connected to a device under test 70 in a connection manner (after a testing environment is built) as in the first embodiment, rx/tx line loss of the system at a desired frequency point needs to be calibrated and recorded, and line loss of a part of channels is as follows:
the radio frequency test method of the multi-channel device can comprise the following operations:
s601: executing the test case;
specifically, one test case to be tested is executed in the control module 10, the number of test cases may be multiple, and a user may select a required test case as needed and sequentially execute the test cases through the control module 10. The test cases to be tested can be classified, the classification can be transmitter test (downlink) and receiver test (uplink), and the test cases of the transmitter test and the receiver test can be executed firstly and then according to the classification.
The tests according to the specifications in the 3GPP38.141 protocol are shown in the following table:
s602: configuring a corresponding test mode according to the test case;
specifically, the mode control unit 11 in the control module 10 configures a corresponding test mode for the device under test 70 according to a protocol test requirement in the test case, for example, the test case selected for execution is the maximum output power in the downlink transmitter test, the test mode corresponding to the test case — the maximum output power is TM1.1, the test mode of the device under test 70 is configured as TM1.1, and the parameters (including the RB number, the modulation mode, the spectrum mode of the transmitter, and the like) corresponding to the device under test 70 are initialized according to the test mode TM 1.1.
S603: configuring a corresponding test template according to the test mode;
specifically, the test control unit 13 in the control module 10 controls the test module 20 to enter the corresponding test template according to the test mode of the device under test 70, and initializes the test parameters of the test module 20, where if the test case is the maximum output power in the downlink transmitter test, the first signal source 21, the second signal source 22, and the third signal source 23 in the test module 20 are set to not transmit signals, and only the relevant parameters of the spectrometer 24 are configured.
S604: traversing all channels to be tested, and carrying out radio frequency index test on the channels according to the test template;
specifically, after the channel control unit 12 in the control module 10 controls the channel switching module 30 to select one of the channels to be tested (for example, the channel 1), the test control unit 13 sends a control command, and after the test module 20 enters the test parameters of the corresponding test template initialization test module 20, the radio frequency index test is performed on the selected channel. After the channel 1 is tested, the channel control unit 12 controls the channel switching module 30 to the channel 2, and performs the radio frequency index test on the channel 2, and the process is repeated until all the channels to be tested are tested.
S605: displaying and recording the test results of all channels;
specifically, the test results of all channels are displayed by the display module 40 (e.g., a display screen), and the test results are recorded in a file by the recording module 50 for storage.
S606: if the untested test case exists, switching to the next test case, and repeating the steps until the test case to be tested is completely executed.
Compared with the prior art, the testing method can shorten the waiting time for switching the test cases in the testing process of each channel, improve the testing and production efficiency, improve the use efficiency of instruments, automate the repeated process and save manpower.
EXAMPLE III
Fig. 7 schematically shows a radio frequency test method for a multi-channel device according to another embodiment of the present invention, where the method of the present embodiment is for a case where one test case corresponds to multiple test patterns, and the method of the present embodiment may include the following operations:
steps S701 to S706 are substantially the same as steps S601 to S606 in the first embodiment, and are not described herein again.
At S704: traversing all channels to be tested to perform radio frequency index test, and then:
s704 a: if the test case corresponds to a plurality of test modes, switching to the next test mode;
then, returning to step S703 to reconfigure the corresponding test template and traverse all channels to be tested to perform the radio frequency index test (step S704);
and until testing all the test modes corresponding to the test case.
Specifically, the mode control unit 11 in the control module 10 controls the device to be tested to switch the test mode, according to the specification in the 3GPP38.141 protocol, part of the test cases correspond to a plurality of test modes, and the correspondence table between the test cases and the test modes for the downlink transmitter test is as follows:
if the test case is a total power dynamic range test, the test case corresponds to four test modes, TM2a, TM3.1a, TM2, and TM3.1, first, corresponding test parameters (including RB number, modulation mode, etc.) need to be configured on the device under test 70 according to a first test mode (TM 2 a) to enable the device under test 70 to generate a corresponding source signal, each test mode has a corresponding test template executed on the test module 20, that is, after the device under test 70 is configured as a TM2a test mode, the test module 20 also needs to enter the test template corresponding to the TM2a test mode to initialize the test parameters of the test module 20, and after traversing all channels according to the flow of the test templates to perform radio frequency index tests, then switching to a second test mode (TM 3.1a, for the device under test 70 to generate a new source signal according to the configuration parameters of TM3.1a, the test module 20 correspondingly enters the test template corresponding to tm3.1a for initialization, then traverses all channels again for radio frequency index test, and continues to switch the next test mode until all test modes traverse all channels, and then switches the next test case. In order to verify the power control situation in different scenarios (full RB, single RB, high modulation situation) of the base station, all four test modes need to traverse all channels for testing, so as to verify the power dynamics of all channels in the four test modes. The switching of the information source signals of the tested equipment 70 is realized by configuring the test mode switching mode, the automatic control execution is realized, and compared with the mode that in the prior art, the information source signal switching is realized by manually configuring the baseband signals through commands by operators, the switching waiting time is shortened, the manual operation is avoided, the automatic execution is realized, the efficiency is improved, and the error probability is reduced.
As another example, the test case in the uplink receiver test, the receiving sensitivity, and the test mode corresponding to the receiving sensitivity, are as follows:
the test case-receiving sensitivity corresponds to 12 test modes, and all the 12 test modes need to traverse all channels to carry out radio frequency index test.
When a plurality of test cases and a plurality of devices of channels to be tested are tested, the number N of the channels to be tested, the number m of the test cases, the time t1 required by the test module 20 to switch the test template, the time t2 required by the channel switching, and the time t3 required by the device to switch the test mode are introduced, the test module 20 usually adopts a keysight/Rohde test instrument, after verification, the time for the keysight/Rohde test instrument to switch the test template is about 5-10s, the channel switching module 30 usually adopts an electronic switch, the time for switching the channels is less than 1ms, or a mechanical switch can be adopted, and the time for switching the channels is less than 1s, so that t1> t2 are generally adopted; in the prior art, the testing method is that after each channel tests all test cases, the next channel is switched to test all test cases again until the sum of the time for testing all channels is T1= N × (T1 + T3) + m × T2. In the method in the above second and third embodiments, after one test case traverses all the channels, switching the next test case to traverse all the channels again until the sum of the time when all the test cases are tested is T2= N × T2+ m × (T1 + T3); under the conditions that N is not equal to 1 and T1> T2, T1> T2 is known, namely the test method greatly shortens the switching waiting time compared with the test method in the prior art, so that the total test time is shorter, in addition, the test method of the embodiment of the invention automatically switches the test mode of the tested device 70, automatically switches the test template of the test module 20, automatically switches the channel to be tested, does not need manual intervention in the whole process, performs full-automatic control execution, completely programs and automates the repeated processes of manual wiring switching of the channel, manual information source configuration and the like, reduces the human input, has lower error probability, shortens the total test time, and improves the use efficiency of the instrument.
Example four
As shown in fig. 8, according to a method for radio frequency testing of a multi-channel device in another embodiment of the present invention, the method of the present embodiment may include the following operations:
steps S801 to S806 are substantially the same as steps S701 to S706 in the second embodiment, and are not described herein again. After testing all the test cases, displaying and recording the test results of all the channels, further comprising:
s807: and marking the channel failed in the test according to the test result.
Specifically, the control module 10 can read a channel that fails to be tested in a test result of one of the test cases, send a signal to the marking module 60, and the marking module 60 lights the LED lamp corresponding to the channel that fails to be tested to realize a marking function, so that a user can visually see which channel is the channel that fails to be tested.
S808: and manually or automatically carrying out at least one radio frequency index test again on the channel with the failed test.
Specifically, the radio frequency index test corresponding to the test case is performed on the channel failed in the test again in a manual or automatic mode, it is confirmed that the result of the test failure really exists, repeated verification can be performed for many times, if the result of the retest is successful, the marking module 60 extinguishes the LED lamp corresponding to the channel successful in the test, the verification for many times is still the channel failed, and the user can also quickly position the channel failed in the test according to the lighted LED lamp for manual investigation.
And after the test result of one test case is verified, switching the test result of the next test case, and repeating the verification process until the test result of the whole test case is verified.
According to the method, the channel which fails in the test can be marked through the LED lamp according to the test result, the channel which fails in the test can be verified again manually or automatically, a user can conveniently find the channel which fails in the test, the problem is located quickly and conveniently, and the efficiency can be further improved.
EXAMPLE five
According to another embodiment of the present invention, in the step of traversing all channels to be tested and performing radio frequency index test on the channels according to the test template, the method may include selecting a channel table, for example, a base station connects 64 RRUs, and channel numbers of the 64 RRUs are arranged from 1 to 255, so that a user may autonomously select a part of channels, for example, channels with channel numbers of 1,9,16, and 60, and only test the part of selected channels when performing the radio frequency index test on the test case, so as to achieve random channel verification result selection, reduce overlong verification time caused by overall traversal, prevent repeated work caused by error in the test process, and quickly and accurately solve the problem of the process.
EXAMPLE six
The embodiment of the invention discloses a computer-readable storage medium which stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the radio frequency test method of the multi-channel device described in any one of the second to fifth embodiments.
EXAMPLE seven
An embodiment of the invention discloses a computer program product, which comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the radio frequency test method of a multi-channel device described in any one of the second to fifth embodiments.
The above-described embodiments are only illustrative, and the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above detailed description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on such understanding, the above technical solutions may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, where the storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM), or other disk memories, CD-ROMs, or other magnetic disks, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
Finally, it should be noted that: the radio frequency testing method and system for multi-channel device disclosed in the embodiments of the present invention are only disclosed as preferred embodiments of the present invention, and are only used for illustrating the technical solutions of the present invention, not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A radio frequency test method of a multi-channel device is characterized by comprising the following steps:
executing the test case;
configuring a corresponding test mode according to the test case;
configuring a corresponding test template according to the test mode;
traversing all channels to be tested, and carrying out radio frequency index test on the channels according to the test template;
if the test case corresponds to a plurality of test modes, switching the next test mode, reconfiguring the corresponding test template, and traversing all channels to be tested to perform radio frequency index test;
and if the untested test case exists, switching to the next test case, and repeating the steps.
2. The method of claim 1, wherein the test pattern is used to configure test parameters of the device under test.
3. The method of claim 1, wherein the test template is used to configure test parameters of a test module, and the test module is used to perform radio frequency indicator testing of a channel.
4. The method of claim 1, wherein traversing all channels to be tested and performing radio frequency index testing on the channels according to the test template comprises:
selecting a channel to be tested, and carrying out radio frequency index test on the channel according to a test template;
switching to the next channel to be tested, and carrying out radio frequency index test on the channel according to the test template;
until all the channels to be tested are tested.
5. The method of claim 1, further comprising displaying and recording test results for all channels;
marking a channel which fails the test according to the test result;
and manually or automatically carrying out at least one radio frequency index test again on the channel with the failed test.
6. The method of claim 5, wherein marking the channel that failed the test according to the test result comprises:
and marking by lighting the LED lamp corresponding to the channel with the failed test.
7. The method of claim 1, wherein traversing all channels to be tested and performing radio frequency index testing on the channels according to the test template comprises:
the channel to be tested is all or part of the channel of the device to be tested.
8. A test system for a multi-channel device, comprising:
the control module is used for executing the test case and controlling the tested equipment to configure a corresponding test mode and switch the test mode according to the test case; the test module is used for controlling the test module to configure a test template according to the test mode and controlling the channel switching module to switch channels;
the test module is used for configuring a corresponding test template according to the test mode and executing the radio frequency index test of the channel according to the test template;
and the channel switching module is used for executing channel selection and/or switching.
9. The system of claim 8, wherein the control module comprises:
the mode control unit is used for controlling the equipment to configure a corresponding test mode according to the test case and controlling the tested equipment to switch the test mode under the condition that the test case corresponds to a plurality of test modes;
the channel control unit is used for controlling the channel switching module to select and/or switch the channel to be tested;
and the test control unit is used for controlling the test module to configure the test template according to the test module.
10. The system of claim 8, further comprising:
the display module is used for displaying the test results of all the channels;
the recording module is used for recording the test results of all the channels;
the marking module is used for marking the channel which fails the test according to the test result;
and the marking module marks the LED lamps corresponding to the channels with failed test by lighting.
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| CN114205010A (en) * | 2021-11-17 | 2022-03-18 | 中科可控信息产业有限公司 | Signal testing apparatus, system, method and storage medium |
| CN115085772A (en) * | 2022-08-24 | 2022-09-20 | 北京紫光青藤微***有限公司 | Test method, processor, NFC device, electronic apparatus, and storage medium |
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