CN114125875A - Sensitivity test method, test device, test system, and storage medium - Google Patents
Sensitivity test method, test device, test system, and storage medium Download PDFInfo
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- CN114125875A CN114125875A CN202010905836.1A CN202010905836A CN114125875A CN 114125875 A CN114125875 A CN 114125875A CN 202010905836 A CN202010905836 A CN 202010905836A CN 114125875 A CN114125875 A CN 114125875A
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Abstract
The embodiment of the invention provides a sensitivity testing method, which is used for testing the sensitivity of a plurality of channels of radio frequency equipment under a plurality of carriers, and comprises the following steps: establishing a simulation cell corresponding to a carrier; controlling the signal source equipment to send time domain data to each channel; establishing a plurality of simulation users corresponding to the plurality of channels one by one, and distributing uplink scheduling resources for each simulation user; parallelly demodulating time domain data of corresponding channels according to uplink scheduling resources corresponding to the analog users to determine error rates of the analog users; and determining the sensitivity of the corresponding channel according to the error rate of each simulated user. It can be seen that, for a carrier, the sensitivity of each channel under the carrier can be determined by determining each bit error rate after parallel demodulating the time domain data of each channel according to the uplink scheduling resources corresponding to each analog user, i.e. the embodiment of the invention can perform parallel testing, and greatly improves the testing efficiency compared with the prior art.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a sensitivity testing method, a testing apparatus, a testing system, and a storage medium.
Background
A large-scale Antenna technology (Massive MIMO) is introduced into a fifth generation mobile communication technology (5th generation mobile networks, 5G), so that radio frequency devices can support more carriers and channels, and therefore radio frequency devices of different systems and different channel specifications can meet different business application scenarios, wherein the radio frequency devices include Active Antenna Units (AAUs).
When producing radio frequency equipment, manufacturers need to test the sensitivity of each channel of the radio frequency equipment under each carrier which can be supported by the radio frequency equipment, but the existing test mode mainly adopts manual test, namely, the sensitivity of each channel under each carrier is tested by adopting the manual mode, and the problem of extremely low test efficiency exists.
Disclosure of Invention
Based on this, embodiments of the present invention provide a sensitivity testing method, a testing device, a testing system, and a storage medium, so as to improve testing efficiency when testing sensitivities of multiple channels of a radio frequency device under a plurality of carriers.
In a first aspect, an embodiment of the present invention provides a sensitivity testing method for testing sensitivities of multiple channels of a radio frequency device under multiple carriers, where the method includes:
establishing a simulation cell corresponding to the carrier;
controlling the signal source equipment to send time domain data to each channel;
establishing a plurality of analog users which are in one-to-one correspondence with the plurality of channels, and distributing uplink scheduling resources for each analog user;
parallelly demodulating time domain data of corresponding channels according to uplink scheduling resources corresponding to the analog users to determine the error rate of the analog users;
and determining the sensitivity of the corresponding channel according to the error rate of each simulated user.
In a second aspect, an embodiment of the present invention provides a test apparatus, including a processor and a memory; the memory for storing a computer program; the processor is configured to execute the computer program and to implement the sensitivity testing method according to the first aspect when executing the computer program.
In a third aspect, an embodiment of the present invention provides a test system, including: a signal source device and a test device according to the second aspect, the signal source device being configured to connect to a radio frequency device.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program causes the processor to implement the sensitivity testing method according to the first aspect.
The embodiment of the invention provides a sensitivity testing method, which is used for testing the sensitivity of a plurality of channels of radio frequency equipment under a plurality of carriers, and comprises the following steps: establishing a simulation cell corresponding to a carrier; controlling the signal source equipment to send time domain data to each channel; establishing a plurality of simulation users corresponding to the plurality of channels one by one, and distributing uplink scheduling resources for each simulation user; parallelly demodulating time domain data of corresponding channels according to uplink scheduling resources corresponding to the analog users to determine error rates of the analog users; and determining the sensitivity of the corresponding channel according to the error rate of each simulated user. It can be seen that, for a carrier, the sensitivity of each channel under the carrier can be determined by determining each bit error rate after parallel demodulating the time domain data of each channel according to the uplink scheduling resources corresponding to each analog user, i.e. the embodiment of the invention can perform parallel testing, and greatly improves the testing efficiency compared with the prior art.
Drawings
FIG. 1 is a schematic diagram of an alternative application scenario of embodiments of the present invention;
FIG. 2 is a schematic flow chart of a sensitivity testing method according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of a test apparatus according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a structure of a test system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification without any creative effort belong to the protection scope of the present specification.
The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
Some embodiments of the present description will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The embodiment of the present invention may be applied to an application scenario as shown in fig. 1, in which a signal source device 110 is connected to a radio frequency device 120, and the radio frequency device 120 is connected to a test device 130, where the radio frequency device 120 includes multiple antennas and multiple channels corresponding to the antennas, for example, the radio frequency device 120 may be an active antenna unit; the test device 130 may perform the method described in the embodiments of the present application to test the sensitivity of the rf device 120 for multiple channels per carrier. In some embodiments, the signal source device 110 is connected to the rf device 120 through an rf line, and the rf device 120 is connected to the test device 130 through an optical fiber. In some embodiments, the signal source device 110 may connect the channels of the rf device 120 through a switch matrix. In some embodiments, the testing apparatus 130 may include a foreground device and a background device, the foreground device is used for interacting with a user, for example, displaying a testing result, the background device is used for executing an algorithm program, for example, the foreground device and the background device are connected through a wireless network, the foreground device is a computer terminal, and the background device is a server.
The sensitivity testing method provided by the embodiment of the invention is applied to testing equipment and is used for testing the sensitivity of a plurality of channels of radio frequency equipment under a plurality of carriers, wherein the plurality of carriers refer to the carriers which can be supported by the radio frequency equipment, and the number of the carriers is determined by the hardware configuration of the radio frequency equipment and can be one or more; the radio frequency equipment comprises a receiver for receiving signals, the sensitivity of the channels refers to the minimum signal strength of the receiver in normal operation, and if the receiver of the radio frequency equipment can normally operate under the minimum signal strength, the sensitivity of each channel is up to the standard.
The sensitivity testing method in the embodiment of the present invention, as shown in fig. 2, includes, but is not limited to, the following steps.
And step S10, establishing a simulated cell corresponding to the carrier.
It can be known from the foregoing that the radio frequency device can support one or more carriers, and each carrier can establish a corresponding simulated cell, where the simulated cell refers to a virtual cell, so that the sensitivity of each channel of the radio frequency device under one carrier can be tested, that is, one carrier is selected first. In some embodiments, the selection may be performed according to a selection operation of a user, or the setting number for each carrier may be selected by the testing device according to a certain rule, for example, according to a sequence from small to large, although the selection manner is not limited thereto. Thus, a corresponding simulated cell may be established for the carrier used for testing.
In some embodiments, step S10 includes, but is not limited to, the following:
a simulated cell is established based on cell parameters associated with the radio frequency device.
It can be seen from the foregoing that the carrier that can be supported by the radio frequency device is determined by its own hardware configuration, and the simulated cell corresponds to the carrier, so that each cell parameter of the simulated cell is also determined by its own hardware configuration of the radio frequency device. Thus, cell parameters of the simulated cell may be configured based on cell parameters associated with the radio frequency device, thereby establishing the simulated cell based on the cell parameters. That is, the cell parameters of the simulated cells are configured according to the cell parameters configured by the hardware of the corresponding radio frequency device, so as to establish each simulated cell. In some embodiments, a frame structure, a bandwidth, a center frequency, a Physical Cell Identifier (PCI), an uplink modulation mode, and the like of the simulation Cell may be configured according to Cell parameters associated with the radio frequency device, so as to establish each simulation Cell according to the foregoing parameters, where the Physical Cell Identifier may be used to distinguish different simulation cells.
And step S20, controlling the signal source equipment to send time domain data to each channel.
After the simulated cell is established, the signal source equipment can keep sending time domain data in the whole test process. In some embodiments, the signal source device may be configured to cyclically transmit the time domain data, and the same time domain data is transmitted to each channel of the radio frequency device, for example, during the whole test process, the signal source device transmits the time domain data in each time slot, and the time domain data in each time slot is transmitted to each channel of the radio frequency device.
In some embodiments, before controlling the signal source device to transmit the time domain data to each channel, the following is included, but not limited to:
and setting the signal transmission intensity value of the signal source equipment according to the minimum signal intensity value of the receiver of the radio frequency equipment in normal operation.
The time domain data sent by the signal source equipment has signal strength, and the sensitivity of the channel refers to the minimum signal strength of the receiver in normal operation, so the signal sending strength of the signal source equipment can be set according to the radio frequency equipment. In some embodiments, the signal transmission strength value of the signal source device may be set according to a minimum signal strength value (i.e., a sensitivity threshold) of the receiver of the radio frequency device during normal operation, so that the signal strength of the time domain data transmitted by the signal source device is close to the sensitivity threshold.
Step S30, building a plurality of analog users corresponding to the plurality of channels one to one, and allocating uplink scheduling resources to each analog user.
In practical application of the radio frequency device, an antenna receives time domain data sent by a terminal user according to a certain uplink rule, a channel transmits the time domain data to a next node, and the uplink rule of the terminal user is related to a cell where the terminal user is located, so that simulated users corresponding to each channel can be established, wherein the simulated users refer to virtual terminal users. In some embodiments, a consistent number of analog users may be established according to the number of channels of the radio frequency device, that is, the channels correspond to the analog users one to one. Certainly, when the simulation user is established, corresponding uplink scheduling resources also need to be allocated to each simulation user, that is, a certain uplink rule is set for the simulation user.
In some embodiments, step S30 includes, but is not limited to, the following steps.
Step S301, configuring uplink channel parameters for each analog user to establish each analog user.
The simulation user may correspond to an actual end user, but the simulation user in the embodiment of the present invention is used for performing the sensitivity test, and therefore, the uplink channel parameter related to the sensitivity test needs to be configured for the simulation user. In some embodiments, the Uplink Channel parameter refers to a parameter related to a Physical Uplink Shared Channel (PUSCH), including: a Radio Network Temporary Identifier (RNTI), a Modulation and Coding Scheme (MCS), a Hybrid Automatic Repeat reQuest (HARQ) enabling switch, PUSCH parameters specified by a protocol, resource information of a time-frequency domain, and the like, wherein the RNTI may be used to distinguish different analog users.
Step S302, distributing uplink scheduling resources for each simulation user according to the simulation cell.
When the simulation user is established, a certain uplink rule needs to be set for the simulation user, and because the sensitivity test is performed in one simulation cell at the time, uplink scheduling resources can be allocated to each simulation user according to the simulation cell, namely the uplink scheduling resources are used for setting the corresponding uplink rule for the simulation user. In some embodiments, each analog user may be allocated uplink scheduling resources according to the specific configuration of the analog cell, or may be allocated uplink scheduling resources according to the specific configuration of the analog cell and resources required by each analog user. In some embodiments, uplink scheduling resources may be allocated to each simulated user in a space division multiplexing manner according to the specific configuration of the simulated cell.
And step S40, demodulating the time domain data of the corresponding channel in parallel according to the uplink scheduling resources corresponding to each analog user to determine the error rate of each analog user.
And step S50, determining the sensitivity of the corresponding channel according to the error rate of each simulated user.
The test can be performed after each simulation user is established and uplink scheduling resources are allocated to each simulation user, where the test is performed in the current simulation cell, that is, in a corresponding carrier, that is, after the test is completed, the sensitivity of the radio frequency device in each channel in the carrier can be obtained. Based on this, the time domain data of the corresponding channels can be demodulated in parallel according to the uplink scheduling resources corresponding to each analog user, that is, the time domain data of each channel is demodulated at the same time, so that the bit Error Rate (Block Error Rate) of each analog user can be determined, and the sensitivity of each channel can be determined according to the bit Error Rate of each analog user.
In some embodiments, if the error rate of one simulated user is less than a preset threshold, for example, less than 10%, it indicates that the sensitivity of the channel corresponding to the simulated user is up to standard. Therefore, if the error rate of each analog user is smaller than the preset threshold, the sensitivity of each channel of the radio frequency equipment under the current carrier wave is determined to reach the standard.
Next, the following description is given by demodulating, according to an uplink scheduling resource of an analog user, time domain data of a channel corresponding to the analog user, and determining an error rate of the analog user:
in order to simulate the uplink of an actual terminal user, the time domain data of the channel corresponding to the simulated user can be demodulated according to the uplink scheduling resource corresponding to the simulated user, and it can be understood that in practical application, the time domain data sent to the channel by the simulated user is to be demodulated, and the time domain data sent to the channel by the signal source device is to be demodulated according to the uplink scheduling resource corresponding to the simulated user, so that the actual uplink of the terminal user can be simulated, and the error rate of the simulated user can be determined according to the demodulation result. In some embodiments, the time domain data may be first converted to frequency domain data before demodulation.
In some embodiments, step S40 includes, but is not limited to, the following steps:
step S401, the time domain data of the corresponding channel is demodulated in parallel according to the uplink scheduling resources corresponding to each analog user, so as to obtain the cyclic redundancy check result of each analog user.
And step S402, determining the error rate of each simulation user according to each cyclic redundancy check result.
The time domain data of each channel is demodulated in parallel according to each uplink scheduling resource, so as to obtain a Cyclic Redundancy Check (CRC) result, and the following description takes demodulation of one time domain data as an example: demodulating the time domain data according to the single stream, wherein each system frame comprises four 1ms uplink subframes, so that each system frame can demodulate four cyclic redundancy check results; in addition, the total demodulation duration can be set, for example, the total demodulation duration is set to 1s, and then four hundred cyclic redundancy check results can be demodulated in one second because the system frame is 10 ms. After obtaining a plurality of cyclic redundancy check results, the Block Error Rate (BLER) can be determined according to the following formula,
wherein BLER represents the error rate, NACK represents the CRC with errors in demodulation, and ACK represents the CRC with correct demodulation. For example, if there are 400 crc results, of which 5 are wrong and 395 are correct, the error rate can be determined to be 1.25%. Therefore, it can be understood that by demodulating the time domain data of each channel in parallel, each bit error rate can be determined in parallel, and thus the sensitivity of each channel under the carrier corresponding to the current simulated cell can be determined.
In some embodiments, step S50 includes, but is not limited to, the following.
If the error rate of one or more of the plurality of simulated users exceeds a preset threshold, judging that the sensitivity test of the channel corresponding to the one or more simulated users does not pass; and/or if the error rate of one or more of the plurality of simulated users exceeds a preset threshold, testing the sensitivity of the channel corresponding to the one or more simulated users under the carrier again.
In some embodiments, if one or more of the bit error rates of the simulated users exceed a preset threshold, for example, exceed 10%, it may be determined that the sensitivity test of the corresponding channel fails, that is, the sensitivity of the corresponding channel does not meet the standard. In some embodiments, if one or more of the error rates of the simulated users exceeds the preset threshold, for example, exceeds 10%, the error rate of one or more simulated users is tested again, that is, the sensitivity of the channel corresponding to one or more simulated users under the carrier is tested again. And if the error rate does not exceed the preset threshold after the retest, judging that the sensitivity test of the corresponding channel passes, otherwise, judging that the sensitivity test of the corresponding channel does not pass.
In some embodiments, after determining the sensitivity of the corresponding channel according to the error rate of each simulated user, the following is included, but not limited.
And testing the sensitivity of the radio frequency equipment in a plurality of channels under another carrier.
After the steps S10 to S50 are performed, the sensitivity of each channel of the radio frequency device under the carrier corresponding to the current simulated cell is completed, so that the sensitivity of each channel of the radio frequency device under another carrier can be tested, that is, the steps S10 to S50 are performed again until all carriers are tested, and thus, the sensitivity of each channel of the radio frequency device under each carrier can be tested.
In the prior art, the sensitivity of each channel of the radio frequency device under each carrier is tested mainly in a manual test mode on a production line, and for one carrier, the test of the next channel, namely the serial test, needs to be performed after one channel is tested, so that the test efficiency is extremely low. In the embodiment of the invention, for a carrier, a corresponding simulation cell is established, simulation users corresponding to each channel are established, and then time domain data of each channel is demodulated in parallel according to uplink scheduling resources corresponding to each simulation user, namely, each channel is tested at the same time, so that the sensitivity of each channel under the carrier can be obtained in parallel.
In addition, in the prior art, if the test efficiency needs to be improved, the matched equipment resources and human resources need to be added, which causes the test cost to be too high, and the test performed by establishing the simulation cell and simulating the user in the embodiment of the application does not need to be additionally added, which greatly reduces the test cost.
An embodiment of the present invention further provides a testing apparatus, as shown in fig. 3, including a processor and a memory, where the memory is used to store a computer program; the processor is used for executing the computer program and realizing any sensitivity testing method provided by the embodiment of the invention when the computer program is executed.
It should be understood that the Processor may be a Central Processing Unit (CPU), and the Processor may be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
An embodiment of the present invention further provides a test system, as shown in fig. 4, including a signal source device and the test device according to the embodiment of the present invention, where the signal source device is used to connect to a radio frequency device.
The embodiment of the invention also provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program enables the processor to realize any one of the sensitivity testing methods provided by the embodiment of the invention.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable storage media, which may include computer readable storage media (or non-transitory media) and communication media (or transitory media).
The term computer-readable storage medium includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer-readable storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
For example, the computer readable storage medium may be an internal storage unit of the testing device described in the foregoing embodiment, for example, a hard disk or a memory of the testing device. The computer readable storage medium may also be an external storage device of the test device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), etc. provided on the test device.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A sensitivity testing method for testing the sensitivity of a plurality of channels of a radio frequency device under a plurality of carriers, the method comprising:
establishing a simulation cell corresponding to the carrier;
controlling the signal source equipment to send time domain data to each channel;
establishing a plurality of analog users which are in one-to-one correspondence with the plurality of channels, and distributing uplink scheduling resources for each analog user;
parallelly demodulating time domain data of corresponding channels according to uplink scheduling resources corresponding to the analog users to determine the error rate of the analog users;
and determining the sensitivity of the corresponding channel according to the error rate of each simulated user.
2. The method of claim 1, wherein the establishing the simulated cell corresponding to the carrier comprises:
establishing the simulated cell based on cell parameters associated with the radio frequency device.
3. The method of claim 1, prior to controlling the signal source device to transmit time domain data to each of the channels, comprising:
and setting the signal sending intensity value of the signal source equipment according to the minimum signal intensity value of the receiver of the radio frequency equipment in normal work.
4. The method of claim 1, wherein the establishing a plurality of analog users in one-to-one correspondence with the plurality of channels and allocating uplink scheduling resources to each of the analog users comprises:
configuring uplink channel parameters for each simulated user to establish each simulated user;
and allocating uplink scheduling resources to each simulated user according to the simulated cell.
5. The method of claim 1, wherein the parallel demodulation of the time domain data of the corresponding channel according to the uplink scheduling resource corresponding to each of the analog users to determine the bit error rate of each of the analog users comprises:
according to the uplink scheduling resources corresponding to the simulation users, time domain data of corresponding channels are demodulated in parallel to obtain cyclic redundancy check results of the simulation users;
and determining the error rate of each simulated user according to the cyclic redundancy check result of each simulated user.
6. The method according to claims 1-5, wherein said determining the sensitivity of the corresponding channel according to the bit error rate of each of the simulated users comprises:
if the error rate of one or more of the plurality of simulated users exceeds a preset threshold, judging that the sensitivity test of the channel corresponding to the one or more simulated users does not pass; and/or
If the error rate of one or more of the simulated users exceeds a preset threshold value, the sensitivity of the channel corresponding to the one or more simulated users under the carrier wave is tested again.
7. The method of claim 1, after determining the sensitivity of the corresponding channel based on the bit error rate of each of the simulated users, comprising:
and testing the sensitivity of the radio frequency equipment in a plurality of channels under another carrier.
8. A test apparatus comprising a processor and a memory;
the memory for storing a computer program;
the processor for executing the computer program and implementing the sensitivity testing method of any one of claims 1 to 7 when executing the computer program.
9. A test system, comprising: a signal source device for connection to a radio frequency device and a test device according to claim 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, causes the processor to implement the sensitivity testing method according to any one of claims 1 to 7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115085829A (en) * | 2022-05-18 | 2022-09-20 | 珠海云洲智能科技股份有限公司 | Method for testing sensitivity under existence of multipath fading interference and electronic equipment |
| CN116800384A (en) * | 2023-08-24 | 2023-09-22 | 荣耀终端有限公司 | Equipment testing method, testing equipment and chip system |
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2020
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115085829A (en) * | 2022-05-18 | 2022-09-20 | 珠海云洲智能科技股份有限公司 | Method for testing sensitivity under existence of multipath fading interference and electronic equipment |
| CN115085829B (en) * | 2022-05-18 | 2023-08-29 | 珠海云洲智能科技股份有限公司 | Method for testing sensitivity under existence of multipath fading interference and electronic equipment |
| CN116800384A (en) * | 2023-08-24 | 2023-09-22 | 荣耀终端有限公司 | Equipment testing method, testing equipment and chip system |
| CN116800384B (en) * | 2023-08-24 | 2023-11-21 | 荣耀终端有限公司 | Equipment testing method, testing equipment and chip system |
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