CN115290991A

CN115290991A - Antenna testing method, device and system, channel simulator and readable storage medium

Info

Publication number: CN115290991A
Application number: CN202211229613.3A
Authority: CN
Inventors: 樊帆; 孙晓宇
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2022-11-04
Anticipated expiration: 2042-10-09
Also published as: CN115290991B

Abstract

The application relates to the technical field of terminals, and provides an antenna testing method, an antenna testing device, an antenna testing system, a channel simulator and a readable storage medium, wherein the method comprises the following steps: receiving a channel test signal sent by a channel simulator through radio frequency connection, wherein the channel test signal is generated by the channel simulator based on a received channel signal of a base station and channel simulation data, and the channel simulation data is generated by the channel simulator based on terminal attitude rotation data, an antenna OTA directional diagram and channel parameter data; and running a test case based on the channel test signal to obtain a test result. According to the method and the device, the test result can reflect the actual external field performance of the terminal and the antenna performance of the terminal in different postures in the same channel environment, and the accuracy and the efficiency of antenna test are improved. Meanwhile, the radio frequency is directly connected, so that a real antenna of the terminal to be tested is not needed in the testing process, and the accuracy and the efficiency of antenna testing are further improved.

Description

Antenna testing method, device and system, channel simulator and readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an antenna testing method, apparatus, system, channel simulator, and readable storage medium.

Background

Currently, MIMO (Multiple-Input Multiple-Output) testing of a mobile terminal is mainly performed in a multi-probe darkroom, and a base station or a base station simulator is connected to a channel simulator, which is then connected to the multi-probe darkroom, or the channel simulator is directly connected to an antenna port of the mobile terminal. The former belongs to an OTA (Over The Air) test, and The test result is lack of theoretical correlation with The antenna index of The mobile terminal, so that The test result of The mobile terminal is inaccurate; the latter belongs to conduction test, antenna indexes are not referred to in the test process, and the test result only can reflect the radio frequency direct connection sensitivity of the antenna but cannot reflect the actual external field performance of the mobile terminal, so that the test result of the mobile terminal is inaccurate.

Disclosure of Invention

The application provides an antenna test method, device, system, channel simulator and readable storage medium, and aims to improve the accuracy of antenna test of a terminal and improve the test efficiency of the terminal.

In a first aspect, the application provides an antenna testing method, which is applied to a terminal to be tested of an antenna testing system, wherein the antenna testing system further comprises a channel simulator and a shielding box for accommodating the terminal to be tested, and the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the antenna test method comprises the following steps:

receiving a channel test signal sent by a channel simulator through radio frequency, wherein the channel test signal is generated by the channel simulator based on a received channel signal of a base station and channel simulation data, and the channel simulation data is generated by the channel simulator based on an antenna OTA directional diagram and channel parameter data;

and running the test case for testing based on the channel test signal to obtain a test result.

According to the antenna test method, the correlation between the test result and the antenna index is established through the antenna OTA directional diagram, so that the test result can reflect the actual external field performance of the terminal, the accuracy and the efficiency of the antenna test are improved, meanwhile, the real antenna of the terminal to be tested is not needed in the test process through the wired connection between the base station and the channel simulator and the radio frequency direct connection between the channel simulator and the terminal to be tested, and the accuracy and the efficiency of the antenna test are further improved.

In one possible implementation, the channel parameter data includes interference, fading, signal strength, and environmental parameters for each signal propagation path.

In another possible implementation manner, the shielding box is provided with a radio frequency interface, and the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interface.

In a second aspect, the present application provides an antenna testing method, which is applied to a channel simulator of an antenna testing system, wherein the antenna testing system further includes a shielding box for accommodating a terminal to be tested, and the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the antenna test method comprises the following steps:

acquiring an antenna OTA directional diagram and channel parameter data;

determining channel simulation data based on the antenna OTA directional diagram and the channel parameter data;

generating a channel test signal based on the received channel signal of the base station and the channel simulation data;

and transmitting the channel test signal to the terminal to be tested through radio frequency so that the terminal to be tested tests based on the channel test signal to obtain a test result.

In a possible implementation manner, before determining channel simulation data based on the antenna OTA pattern and the channel parameter data, the method further includes:

acquiring terminal attitude rotation data of the terminal to be tested;

the step of determining channel emulation data based on the antenna OTA pattern and the channel parameter data comprises:

determining channel impulse responses corresponding to the terminal postures based on the antenna OTA directional diagram, the channel parameter data and the terminal posture rotation data;

and taking the channel impulse response as channel simulation data.

In another possible implementation manner, the step of determining a channel impulse response corresponding to each terminal attitude based on the antenna OTA directional diagram, the channel parameter data, and the terminal attitude rotation data includes:

determining target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data based on the channel parameter data;

and determining channel impulse response corresponding to each terminal attitude based on the antenna OTA directional diagram and the target channel parameter data.

In another possible implementation manner, the step of determining, based on the channel parameter data, target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data includes:

traversing terminal attitude rotation data of a terminal to be tested to obtain a current traversed target terminal attitude;

and determining target channel parameter data corresponding to the target terminal attitude based on the channel parameter data until the terminal attitude rotation data is traversed.

In another possible implementation manner, the step of determining a channel impulse response corresponding to each terminal attitude based on the antenna OTA directional diagram and the target channel parameter data includes:

respectively acquiring terminal antenna gains of each terminal antenna in each signal receiving direction based on the antenna OTA directional diagram;

respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on each target channel parameter data;

and determining the channel impulse response corresponding to each terminal attitude based on the terminal antenna gain and the space channel gain.

In another possible implementation manner, the step of respectively obtaining the terminal antenna gain of each terminal antenna in each signal receiving direction based on the antenna OTA directional diagram includes:

respectively acquiring the arrival angle of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the target channel parameter data corresponding to each air interface path;

and acquiring the working frequency point of each terminal antenna based on the antenna OTA directional diagram, and determining the terminal antenna gain of each terminal antenna in each signal receiving direction based on the arrival angle and the working frequency point.

In another possible implementation manner, the step of respectively determining, based on the target channel parameter data, a spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path includes:

acquiring amplitude gain corresponding to each terminal antenna and base station antenna gain of each signal sending direction corresponding to each air interface path based on target channel parameter data corresponding to each air interface path;

and respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the amplitude gain and the antenna gain.

In another possible implementation manner, the step of respectively determining, based on the amplitude gain and the base station antenna gain, a spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path includes:

acquiring time delay corresponding to each air interface path based on target channel parameter data corresponding to each air interface path;

and respectively determining the space channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the time delay, the amplitude gain and the base station antenna gain.

In another possible implementation manner, the step of respectively determining, based on the time delay, the amplitude gain, and the base station antenna gain, spatial channel gains of each terminal antenna in each signal receiving direction corresponding to each air interface path includes:

acquiring Doppler frequency and initial phase of each signal sending direction corresponding to each air interface path based on target channel parameter data corresponding to each air interface path;

acquiring a departure angle of each signal sending direction corresponding to each air interface path and an angle between a base station antenna vector of a target base station antenna corresponding to each air interface path;

and respectively determining the space channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the angle, the Doppler frequency, the initial phase, the time delay, the amplitude gain and the antenna gain.

In another possible implementation manner, the step of generating a channel test signal based on the received channel signal of the base station and the channel simulation data includes:

sequentially acquiring a plurality of target channel impulse responses corresponding to target moments based on the time sequence of the channel impulse responses in the channel simulation data;

and superposing each target channel impulse response and the corresponding channel signal to obtain a channel test signal corresponding to the target moment.

In another possible implementation, the channel parameter data includes interference, fading, signal strength, and environmental parameters of the respective signal propagation paths.

In another possible implementation manner, the shielding box is provided with a plurality of radio frequency interfaces, and the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interfaces.

In a third aspect, the present application provides an antenna testing apparatus, including: the device comprises an acquisition module, a determination module, a generation module and a transmission module;

the acquisition module is used for acquiring an antenna OTA directional diagram and channel parameter data;

the determining module is used for determining channel simulation data based on the antenna OTA directional diagram and the channel parameter data;

the generating module is used for generating a channel test signal based on the received channel signal of the base station and the channel simulation data;

the transmission module is configured to transmit the channel test signal to the terminal to be tested, so that the terminal to be tested performs a test based on the channel test signal to obtain a test result.

In a fourth aspect, the present application provides a channel simulator, comprising:

one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the channel simulator, cause the channel simulator to perform the antenna testing method as set forth in any one of the possible implementations of the second aspect above.

In a fifth aspect, the present application provides an antenna test system, further including a channel simulator, a terminal to be tested, and a shielding box for accommodating the terminal to be tested, where the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the channel simulator determines channel simulation data based on an antenna OTA directional diagram and channel parameter data, generates a channel test signal based on a received channel signal of a base station and the channel simulation data, and transmits the channel test signal to the terminal to be tested through radio frequency;

the terminal to be tested receives a channel test signal sent by a channel simulator through radio frequency, and runs a test case based on the channel test signal to test so as to obtain a test result.

In a sixth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program, which, when executed by a processor, causes the processor to perform the antenna testing method as set forth in the first aspect or any of the possible implementations of the first aspect.

In a seventh aspect, the present application provides a chip, where the chip includes a processor and a data interface, and the processor reads an instruction stored in a memory through the data interface and executes the antenna testing method according to the first aspect or any one of possible implementation manners of the first aspect.

Optionally, as a possible implementation manner, the chip may further include a memory, where instructions are stored in the memory, and the processor is configured to execute the instructions stored in the memory, and when the instructions are executed, the processor is configured to execute the antenna testing method according to the first aspect or any one of the possible implementation manners of the first aspect.

Drawings

FIG. 1 is a schematic diagram of a prior art throughput testing of a mobile terminal;

fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 3 is a block diagram of a software structure of an electronic device according to an embodiment of the present application;

fig. 4 is a flowchart of an antenna testing method according to an embodiment of the present application;

fig. 5 is a schematic diagram of an antenna testing system according to an embodiment of the present application;

fig. 6 is a flowchart of an antenna testing method according to another embodiment of the present application;

fig. 7 is a flowchart of an antenna testing method according to still another embodiment of the present application;

fig. 8 is a flowchart of an antenna testing method according to another embodiment of the present application;

fig. 9 is a flowchart of an antenna testing method according to another embodiment of the present application;

fig. 10 is a flowchart of an antenna testing method according to another embodiment of the present application;

fig. 11 is a schematic structural diagram of an antenna testing apparatus provided in the present application.

Detailed Description

The terms "first," "second," and "third," etc. in the description and claims of the present application and the description of the drawings are used for distinguishing between different objects and not for limiting a particular order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

For clarity and conciseness of the following description of the embodiments, a brief introduction to an implementation of antenna testing is first given:

at present, the MIMO test of a mobile terminal is mainly performed in a multi-probe darkroom, and is connected to a channel simulator through a base station or a base station simulator, the channel simulator is connected to the multi-probe darkroom, the base station simulator transmits a channel signal, the channel simulator receives the channel signal of the base station simulator through an air interface path, and superimposes the channel signal with a parameter set by the channel simulator, and transmits the processed channel signal to the multi-probe darkroom through the air interface path. And receiving signals through a plurality of antennas arranged in the multi-probe darkroom, and testing the throughput of the mobile terminal.

As shown in fig. 1, fig. 1 is a schematic diagram of a prior art MIMO OTA test system. In the prior art, a mobile terminal 105 is placed inside an OTA darkroom 103 (a silencing darkroom), and an antenna 104 to be tested around the mobile terminal 105 is connected with an external channel simulator 102 and a base station simulator 101, so that throughput of the mobile terminal can be tested, but because the channel simulator 102 and the base station simulator 101 output channel signals are not related to the antenna 104 to be tested, a test result is not related to an antenna index of the mobile terminal theoretically, and the test result of the mobile terminal is inaccurate.

Based on the problems in the technical scheme, the application provides an antenna testing method, which can establish the association between the signal output by the channel simulator to the terminal to be tested (mobile terminal) and the parameters of the antenna of the terminal to be tested, so as to establish the association between the testing result and the antenna index of the mobile terminal and improve the accuracy of the antenna test of the terminal. The antenna test method provided can be applied to electronic devices such as mobile phones, tablet computers, desktop computers, laptop computers, notebook computers, ultra-mobile Personal computers (UMPCs), handheld computers, netbooks, personal Digital Assistants (PDAs), wearable electronic devices, smart watches and the like. The structure of the electronic device to which the antenna testing method is applied may be as shown in fig. 2.

As shown in fig. 2, fig. 2 is a diagram of an exemplary electronic device provided in the present application, the electronic device 200 may include a processor 210, an external memory interface 220, an internal memory 221, a Universal Serial Bus (USB) interface 230, a charging management module 240, a power management module 241, a battery 242, an antenna 1, an antenna 2, a mobile communication module 250, a wireless communication module 260, an audio module 270, a speaker 270A, a receiver 270B, a microphone 270C, an earphone interface 270D, a sensor module 280, a key 290, a motor 291, an indicator 292, a camera 293, a display 294, and a Subscriber Identity Module (SIM) card interface 295. The sensor module 280 may include a pressure sensor 280A, a gyroscope sensor 280B, an air pressure sensor 280C, a magnetic sensor 280D, an acceleration sensor 280E, a distance sensor 280F, a proximity light sensor 280G, a fingerprint sensor 280H, a temperature sensor 280J, a touch sensor 280K, an ambient light sensor 280L, a bone conduction sensor 280M, and the like.

It is to be understood that the illustrated structure of the present embodiment does not constitute a specific limitation to the electronic device 200. In other embodiments, the electronic device 200 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 210 may include one or more processing units, such as: the processor 210 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

Wherein the controller may be a neural center and a command center of the electronic device 200.

A memory may also be provided in processor 210 for storing instructions and data. In some embodiments, processor 210 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose-input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus including a serial data line (SDA) and a Serial Clock Line (SCL). The I2S interface may be used for audio communication. The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. The MIPI interface may be used to connect the processor 210 with peripheral devices such as the display screen 294, the camera 293, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. The USB interface 230 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB type c interface, or the like.

It should be understood that the connection relationship between the modules illustrated in the present embodiment is only an exemplary illustration, and does not limit the structure of the electronic device 200. In other embodiments of the present application, the electronic device 200 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charge management module 240 is configured to receive a charging input from a charger. The power management module 241 is used to connect the battery 242, the charging management module 240 and the processor 210.

The wireless communication function of the electronic device 200 may be implemented by the antenna 1, the antenna 2, the mobile communication module 250, the wireless communication module 260, the modem processor, the baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 200 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 250 may provide a solution including 2G/3G/4G/5G wireless communication applied on the electronic device 200. The mobile communication module 250 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 250 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 250 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave.

The modem processor may include a modulator and a demodulator.

The wireless communication module 260 may provide solutions for wireless communication applied to the electronic device 200, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. The wireless communication module 260 may be one or more devices integrating at least one communication processing module. The wireless communication module 260 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 210. The wireless communication module 260 may also receive a signal to be transmitted from the processor 210, frequency-modulate and amplify the signal, and convert the signal into electromagnetic waves via the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of electronic device 200 is coupled to mobile communication module 250 and antenna 2 is coupled to wireless communication module 260 such that electronic device 200 may communicate with networks and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), general Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The electronic device 200 implements display functions via the GPU, the display screen 294, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 294 and an application processor. The display screen 294 is used to display images, video, and the like. A series of Graphical User Interfaces (GUIs) may be displayed on the display screen 294 of the electronic device 200, which are the main screens of the electronic device 200.

The electronic device 200 may implement a shooting function through the ISP, the camera 293, the video codec, the GPU, the display screen 294, and the application processor. The ISP is used to process the data fed back by the camera 293. The camera 293 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the electronic device 200 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy. Video codecs are used to compress or decompress digital video. The electronic device 200 may support one or more video codecs. The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously.

The external memory interface 220 may be used to connect an external memory card, such as a MicroSD card, to extend the memory capability of the electronic device 200. Internal memory 221 may be used to store computer-executable program code, including instructions. The processor 210 executes various functional applications of the electronic device 200 and data processing by executing instructions stored in the internal memory 221.

Electronic device 200 may implement audio functions via audio module 270, speaker 270A, receiver 270B, microphone 270C, headphone interface 270D, and an application processor, among other things. Such as music playing, recording, etc.

Audio module 270 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The speaker 270A, also called a "horn", is used to convert an audio electrical signal into an acoustic signal. The receiver 270B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. The microphone 270C, also referred to as a "microphone," is used to convert acoustic signals into electrical signals. The headphone interface 270D is used to connect wired headphones. The headset interface 270D may be the USB interface 230, or may be an open mobile electronic device platform (OMTP) standard interface of 3.5 mm, or a Cellular Telecommunications Industry Association (CTIA) standard interface. The pressure sensor 280A is used to sense a pressure signal, which can be converted into an electrical signal. The gyro sensor 280B may be used to determine the motion pose of the electronic device 200. The air pressure sensor 280C is used to measure air pressure. The magnetic sensor 280D includes a hall sensor. The electronic device 200 may detect the opening and closing of the flip holster using the magnetic sensor 280D. The acceleration sensor 280E may detect the magnitude of acceleration of the electronic device 200 in various directions (typically three axes). A distance sensor 280F for measuring distance. The proximity light sensor 280G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The ambient light sensor 280L is used to sense ambient light brightness. The fingerprint sensor 280H is used to collect a fingerprint. The temperature sensor 280J is used to detect temperature. The touch sensor 280K is also referred to as a "touch device". The bone conduction sensor 280M may acquire a vibration signal.

The audio module 270 may analyze a voice signal based on the vibration signal of the bone mass vibrated by the sound part acquired by the bone conduction sensor 280M, so as to implement a voice function. The application processor can analyze heart rate information based on the blood pressure pulsation signal acquired by the bone conduction sensor 280M, so as to realize a heart rate detection function.

The keys 290 include a power-on key, a volume key, etc. The motor 291 may generate a vibration cue. Indicator 292 may be an indicator light that may be used to indicate a state of charge, a change in charge, or may be used to indicate a message, missed call, notification, etc.

The SIM card interface 295 is used to connect a SIM card. The SIM card can be attached to and detached from the electronic device 200 by being inserted into the SIM card interface 295 or being pulled out of the SIM card interface 295. The electronic device 200 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 295 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. Multiple cards can be inserted into the same SIM card interface 295 at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 295 may also be compatible with different types of SIM cards. The SIM card interface 295 may also be compatible with external memory cards. The electronic device 200 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the electronic device 200 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the electronic device 200 and cannot be separated from the electronic device 200.

In addition, an operating system runs on the above components. Such as the hongmeng system, the iOS operating system, the Android open source operating system, the Windows operating system, etc. A running application may be installed on the operating system.

Fig. 3 is a block diagram of a software structure of an electronic device according to an embodiment of the present disclosure.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments of the present application, the software architecture of the electronic device includes at least three layers, which are an application layer, an application framework layer, and a hardware abstraction layer from top to bottom.

The application layer may include a series of application packages. These application packages may include camera, gallery, calendar, phone, map, navigation, WLAN, bluetooth, music, video, short message, etc. applications. In the embodiment of the present application, the application layer includes several throughput test cases, for example, the test APP may include several test cases. In some embodiments of the application, when testing the APP, a user may start a corresponding test case through the testing APP before the electronic device is placed in the shielding box, and if a channel test signal is received through the radio frequency connection, a throughput test result is obtained through the testing APP, where the test result includes signal strength, rate, and the like.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. As shown in FIG. 3, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like. For example, in some embodiments of the present application, the application framework layer may also include a storage module. In the implementation scenario of the antenna test scheme, when the throughput test result is obtained through the test APP, the test result is stored in the storage module, specifically, the test result is stored in the storage module after a timestamp is added, so that the time association is established between the test result and the channel test signal, and the antenna performance of the mobile terminal is conveniently analyzed according to the test result.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The telephone manager is used for providing a communication function of the electronic equipment. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a brief dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scrollbar text in a status bar at the top of the system, such as a notification of a running application in the background, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, sounding a prompt tone, vibrating the electronic device, flashing an indicator light, etc.

The hardware abstraction layer is an interface layer between the kernel of the operating system of the electronic device 200 and the hardware circuit, and is intended to abstract the hardware. In some embodiments of the application, the hardware abstraction layer includes a network communication module. The network communication module may be used to detect whether the electronic device 200 is in a networked state. The networking state in this application means that the electronic device 200 can communicate with other electronic devices through the mobile communication module 250 or the wireless communication module 260, and the communication can occur on a closed local area network or can be performed through the internet.

For convenience of understanding, the following embodiments of the present application will specifically describe an antenna testing method provided by the embodiments of the present application by taking the electronic device 200 having the structure shown in fig. 2 and fig. 3 as an example, with reference to the accompanying drawings and application scenarios.

Fig. 4 is a flowchart of an antenna testing method according to an embodiment of the present application, and fig. 5 is a schematic scene diagram of an antenna testing system according to an embodiment of the present application.

As shown in fig. 5, the antenna testing system includes a channel simulator and a shielding box for accommodating a terminal to be tested, the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box, the channel simulator is in wired connection with the base station, and directly receives a plurality of channel signals transmitted by the base station through wired connection, the channel signals may include channel signals of all multipath channels of all base station antennas of the base station, and the shielding box may shield all signals and avoid transmitting the signals into the shielding box. For example, if each radio frequency interface is used for transmitting a channel signal of an air interface path, the number of the radio frequency interfaces is consistent with or greater than that of the air interface paths of a multipath channel, the channel simulator is connected with the radio frequency interfaces, that is, each channel transmitting end of the channel simulator is connected with one radio frequency interface, and a terminal to be tested is in radio frequency connection with the radio frequency interface point, so that the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interfaces, in addition, the wired connection with the channel simulator through the base station and the radio frequency direct connection between the channel simulator and the terminal to be tested are realized, and a real antenna of the terminal to be tested is not needed in the test process.

As shown in fig. 4, the antenna testing method is applied to a channel simulator of an antenna testing system, and the method may include:

step S401: acquiring an antenna OTA directional diagram and channel parameter data;

step S402: determining channel simulation data based on the antenna OTA directional diagram and the channel parameter data;

step S403: generating a channel test signal based on the received channel signal of the base station and the channel simulation data;

step S404: and transmitting the channel test signal to the terminal to be tested through radio frequency so that the terminal to be tested tests based on the channel test signal to obtain a test result.

In the embodiment, the antenna simulation OTA direction file is simulated through antenna CST (three-dimensional electromagnetic field) simulation software of a PC (personal computer), specifically, a user operates the antenna CST simulation software according to simulation parameters of the antenna CST simulation software such as hardware parameters and antenna parameters of a terminal to be tested to obtain the antenna simulation OTA direction file, the antenna simulation OTA direction file comprises data such as antenna efficiency, working frequency points and antenna positions, the PC performs coordinate mapping on the OTA direction data in the antenna simulation OTA direction file to perform coordinate mapping so as to convert the OTA direction data in a rectangular coordinate (CST format) format into the OTA direction data in a polar coordinate format to obtain an antenna directional diagram, and then converts the OTA direction diagram into the antenna directional diagram in a data format used by an OTA channel simulator to obtain the antenna OTA directional diagram related to the antenna index of the terminal antenna of the terminal to be tested. Specifically, the data formats in the antenna OTA pattern are respectively: theta [ deg. ], phi [ deg. ], abs (E) [ V/m ], abs (Theta) [ V/m ], phase (Theta) [ deg. ] Abs (Phi) [ V/m ] Phase (Phi) [ deg. ] ax ], for example, the specific data are: 0.000, 2.769e +00, 2.766e +00, 224.630, 1.327e +00, 319.723, 4.767e-01;5.000, 0.000, 2.524e +00, 2.473e +00, 226.356, 1.498e +00, 332.463, 5.585e-01;10.000, 0.000, 2.336e +00, 2.154e +00, 228.626, 1.664e +00 343.091, 5.976e-01. After obtaining the antenna OTA directional diagram, the PC sends the antenna OTA directional diagram to the channel simulator.

A user can set different channel parameter data through a channel simulator, the channel parameter data includes channel parameters and environment parameters, the channel parameters include interference, fading, signal strength and environment parameters of each signal propagation path, the environment parameters of each signal propagation path include parameters such as a departure angle Φ, an arrival angle ψ, a time delay τ of each signal propagation path, and the channel parameter data can be set through GCM software of the channel simulator.

After the antenna OTA directional diagram and the channel parameter data are obtained, the channel simulator determines channel simulation data based on the antenna OTA directional diagram and the channel parameter data.

Specifically, in a possible implementation manner, before step S402, the antenna testing method further includes:

step a: acquiring terminal attitude rotation data of the terminal to be tested;

step S402 includes:

step b: determining channel impulse responses corresponding to the terminal postures based on the antenna OTA directional diagram, the channel parameter data and the terminal posture rotation data;

step c: and taking the channel impulse response as channel simulation data.

In this embodiment, when the channel parameter data is set, terminal attitude rotation data of the terminal to be tested may be set through GCM software of the channel simulator, where the terminal attitude rotation data is data of the terminal to be tested rotating its terminal attitude along with traversal of time, that is, the terminal attitude of the terminal to be tested rotates according to X, Y, and Z axes, and the terminal attitude rotation data is a terminal attitude (or terminal antenna attitude) at each moment in the rotation process of the terminal to be tested.

In this embodiment, the channel simulator determines channel impulse responses corresponding to terminal gestures based on an antenna OTA directional diagram, channel parameter data, and terminal gesture rotation data to obtain the channel simulation data, and specifically, the channel simulator obtains the channel impulse responses corresponding to the terminal gestures corresponding to the terminal gesture rotation data, and uses the channel impulse responses as the channel simulation data, that is, the sum of the channel impulse responses corresponding to the terminal gestures is the channel simulation data, so as to reflect the association between each data and each terminal gesture in the channel simulation data, and further perform throughput testing of the terminal to be tested through the channel simulation data, so that the test result can reflect the antenna performance of the terminal in different gestures in the same channel environment.

Then, the channel simulator generates a channel test signal based on the received channel signal of the base station and the channel simulation data, that is, each channel impulse response in the channel simulation data is respectively superposed to the corresponding channel signal to obtain the channel test signal. And then, the channel simulator transmits the channel test signal to the terminal to be tested through radio frequency, namely, the channel test signal is transmitted to the terminal to be tested through radio frequency connection, the terminal to be tested performs testing based on the channel test signal to obtain a test result, specifically, the terminal to be tested runs a throughput test case, and performs testing through the received channel test signal and the throughput test case to obtain a test result, wherein the test result comprises data such as signal strength, speed and the like.

In the antenna testing method provided by the embodiment, the OTA directional diagram of the antenna and the channel parameter data are obtained; then, determining channel simulation data based on the antenna OTA directional diagram and the channel parameter data; then, generating a channel test signal based on the received channel signal of the base station and the channel simulation data; and meanwhile, the real antenna of the terminal to be tested is not needed in the testing process through the wired connection between the base station and the channel simulator and the radio frequency direct connection between the channel simulator and the terminal to be tested, and the accuracy and the efficiency of the antenna testing are further improved.

Fig. 6 is a flowchart of an antenna testing method according to another embodiment of the present application, and as shown in fig. 6, step b may include:

step S601: determining target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data based on the channel parameter data;

step S602: and determining channel impulse response corresponding to each terminal attitude based on the antenna OTA directional diagram and the target channel parameter data.

In this embodiment, a user sets different channel parameter data through GCM software of a channel simulator while setting terminal attitude rotation data of a terminal to be tested, and when acquiring the channel parameter data and the terminal attitude rotation data, the channel simulator determines target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data based on the channel parameter data, specifically, when the terminal attitude rotation data and the channel parameter data are set, the channel simulator receives a setting completion instruction, runs the GCM software, and fuses the channel parameter data and the terminal attitude rotation data through the GCM software to obtain target channel parameter data corresponding to each terminal attitude, that is, the GCM software fuses the influence of a terminal attitude (an angle corresponding to an antenna attitude) corresponding to the terminal attitude rotation data on the channel parameter data, thereby obtaining the target channel parameter data.

Specifically, in a possible implementation manner, step S601 includes:

step d: traversing terminal attitude rotation data of a terminal to be tested to obtain a current traversed target terminal attitude;

step e: and determining target channel parameter data corresponding to the target terminal attitude based on the channel parameter data until the terminal attitude rotation data is traversed.

In this embodiment, when a setup completion instruction is received, the channel simulator traverses terminal attitude rotation data of a terminal to be tested through GCM software to obtain a currently traversed target terminal attitude, and obtains target channel parameter data corresponding to the target terminal attitude through fusion of antenna attitude (angle) corresponding to the currently traversed target terminal attitude and channel parameter data through the GCM software until the terminal attitude rotation data is traversed to complete, so as to obtain channel parameter data of each signal propagation path corresponding to each terminal attitude of the terminal to be tested, that is, target channel parameter data.

And then, coupling the target channel parameter data at each moment in the target channel parameter data with the antenna OTA directional diagram to obtain a channel impulse response CIR corresponding to the target channel parameter data at each moment, wherein the channel impulse response is a channel impulse response between each air interface path corresponding to each base station antenna and each terminal antenna of the terminal to be tested, namely a channel impulse response corresponding to each terminal attitude.

According to the antenna testing method provided by the embodiment, the target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data is determined based on the channel parameter data, then the channel impulse response corresponding to each terminal attitude is determined based on the antenna OTA directional diagram and the target channel parameter data, the channel impulse response can be accurately obtained by firstly fusing the terminal attitude rotation data and the channel parameter data and then coupling the target channel parameter data with the antenna OTA directional diagram, the accuracy and the obtaining efficiency of the channel impulse response are improved, and the efficiency of the terminal throughput testing is further improved.

Fig. 7 is a flowchart of an antenna testing method according to another embodiment of the present application, and as shown in fig. 7, step S602 may include:

step S701: respectively acquiring terminal antenna gains of each terminal antenna in each signal receiving direction based on the antenna OTA directional diagram;

step S702: respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on each target channel parameter data;

step S703: and determining the channel impulse response corresponding to each terminal attitude based on the terminal antenna gain and the space channel gain.

In this embodiment, when the antenna OTA directional diagram and the target channel parameter data are coupled, the channel parameter data in the target channel parameter data may be sequentially obtained according to a time sequence, the currently obtained channel parameter data includes channel parameter data of a plurality of signal propagation paths (air interface paths), the antenna OTA directional diagram includes OTA direction data of a plurality of terminal antennas of the terminal to be tested, and when the antenna OTA directional diagram and the antenna OTA direction data are coupled, the channel parameter data of each signal propagation path is coupled to each OTA direction data of the terminal antenna in the antenna OTA directional diagram, so as to obtain a channel impulse response corresponding to each terminal attitude.

Specifically, the channel simulator respectively obtains the terminal antenna gain of each terminal antenna in each signal receiving direction based on the antenna OTA directional diagram, that is, each terminal antenna has a plurality of signal receiving directions, and for the terminal antenna, the terminal antenna gain of each signal receiving direction is obtained through the antenna OTA directional diagram, and then the terminal antenna gain of all terminal antennas in each signal receiving direction is obtained.

Specifically, in a possible implementation manner, step S701 includes:

step f, respectively acquiring the arrival angle of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the target channel parameter data corresponding to each air interface path;

and g, acquiring the working frequency point of each terminal antenna based on the antenna OTA directional diagram, and determining the terminal antenna gain of each terminal antenna in each signal receiving direction based on the arrival angle and the working frequency point.

In this embodiment, the channel simulator acquires the arrival angle of each terminal antenna in each signal receiving direction based on target channel parameter data corresponding to each air interface path, then acquires the working frequency point of each terminal antenna in an antenna OTA directional diagram, and determines the terminal antenna gain based on the arrival angle and the working frequency point, and specifically, queries the terminal antenna gain of each terminal antenna in each signal receiving direction in an antenna OTA directional diagram according to the working frequency point and the arrival angle, so that the terminal antenna gain of each terminal antenna in each signal receiving direction can be accurately obtained, and the accuracy of channel impulse response is improved.

Then, based on each target channel parameter data, respectively determining spatial channel gains of each terminal antenna in each signal receiving direction corresponding to each air interface path, for multiple signal propagation paths (air interface paths) corresponding to the currently obtained channel parameter data, each terminal antenna may have a corresponding signal receiving direction in each air interface path, obtaining the spatial channel gains of each terminal antenna in each signal receiving direction corresponding to each air interface path through the target channel parameter data, specifically, obtaining an amplitude gain corresponding to the terminal antenna and a base station antenna gain of each signal sending direction corresponding to the air interface path, and then determining the spatial channel gains based on the amplitude gain and the base station antenna gain.

When antenna gain and spatial channel gain are obtained, the channel simulator multiplies the terminal antenna gain in each signal receiving direction by the spatial channel gain in the corresponding signal receiving direction, and adds the products to obtain a channel impulse response corresponding to each terminal attitude, where the channel impulse response is a channel impulse response between each terminal antenna in each terminal antenna and each air interface path in each air interface path, and specifically, the formula of the channel impulse response is as follows:

；

wherein h is _s,u,l (t, τ) is the channel impulse response, p is the number in the signal reception direction, p ranges from 1~P,

the terminal antenna gain of the p-th signal receiving direction of the s-th terminal antenna (target terminal antenna) of the terminal to be tested,

the space channel gain of the p-th signal receiving direction of the s-th terminal antenna of the terminal to be tested, t is time, tau is time delay, phi _p And l is an air interface path of a target for an arrival angle of a p signal receiving direction of an s-th terminal antenna of a terminal to be tested, and the MS is the terminal to be tested.

In the antenna testing method provided by this embodiment, the terminal antenna gains of the terminal antennas in the signal receiving directions are respectively obtained based on the antenna OTA directional diagram; then respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on each target channel parameter data; and then determining channel impulse response corresponding to each terminal attitude based on the terminal antenna gain and the spatial channel gain, accurately obtaining the channel impulse response according to the terminal antenna gain and the spatial channel gain, and testing the terminal to be tested according to the channel impulse response by rotating the channel parameter data of the data pair according to the antenna OTA directional diagram and the terminal attitude so that the test result can reflect the actual external field performance of the terminal and the antenna performance of the terminal in different attitudes under the same channel environment, thereby improving the accuracy and efficiency of the antenna test.

Fig. 8 is a flowchart of an antenna testing method according to still another embodiment of the present application, and as shown in fig. 8, step S702 may include:

step S801: acquiring amplitude gain corresponding to each terminal antenna and base station antenna gain of each signal transmission direction corresponding to each air interface path based on target channel parameter data corresponding to each air interface path;

step S802: and respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the amplitude gain and the antenna gain.

In this embodiment, the channel simulator acquires, based on target channel parameter data corresponding to each air interface path, amplitude gains corresponding to each terminal antenna, and acquires base station antenna gains corresponding to each air interface path in each signal transmission direction, specifically, for any target air interface path in the air interface paths, acquires, in the target channel parameter data, the target channel parameter data corresponding to the air interface path, and acquires, according to the target channel parameter data corresponding to the target air interface path, the amplitude gains corresponding to each terminal antenna, and the base station antenna gains corresponding to each signal transmission direction corresponding to the target air interface path, where a departure angle in each signal transmission direction corresponding to each air interface path may be acquired in the target channel parameter data corresponding to each air interface path, and acquires, based on the departure angle, corresponding base station antenna gains in the target channel parameter data corresponding to each air interface path, and further acquires the amplitude gains corresponding to each terminal antenna, and the base station antenna gains corresponding to each signal transmission direction corresponding to each air interface path.

After the amplitude gain and the antenna gain are obtained, the base station antenna gain in each signal sending direction is multiplied by the amplitude gain, and the products are added to obtain the spatial channel gain, so that the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path is obtained.

Specifically, in one possible implementation manner, step S802 includes:

step h: acquiring time delay corresponding to each air interface path based on the target channel parameter data corresponding to each air interface path;

step i: and respectively determining the space channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the time delay, the amplitude gain and the base station antenna gain.

In this embodiment, after the amplitude gain and the antenna gain are obtained, the time delay corresponding to each air interface path is obtained according to the target channel parameter data corresponding to each air interface path, then the base station antenna gain in each signal transmission direction is multiplied by the amplitude gain, the products are added and multiplied by the time delay to obtain the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path, and by adding the time delay parameter, the accuracy of the spatial channel gain is further improved, and further the accuracy of the channel impulse response is improved.

Further, in a possible implementation manner, step g includes:

step j: acquiring Doppler frequency and initial phase of each signal sending direction corresponding to each air interface path based on target channel parameter data corresponding to each air interface path;

step k: acquiring a departure angle of each signal sending direction corresponding to each air interface path and an angle between a base station antenna vector of a target base station antenna corresponding to each air interface path;

step l: and respectively determining the space channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the angle, the Doppler frequency, the initial phase, the time delay, the amplitude gain and the antenna gain.

In this embodiment, the time delay corresponding to each air interface path is obtained, the doppler frequency and the initial phase of each signal transmission direction corresponding to each air interface path are obtained in the target channel parameter data corresponding to each air interface path, and the departure angle of each signal transmission direction corresponding to each air interface path and the angle between the base station antenna vector of the base station antenna corresponding to each air interface path are obtained.

Then, based on the angle, the doppler frequency, the initial phase, the time delay, the amplitude gain, and the antenna gain, determining a spatial channel gain, specifically, the spatial channel gain is defined as:

；

wherein the content of the first and second substances,

the space channel gain of the p signal receiving direction of the s root terminal antenna of the terminal to be tested, t is time, tau is time delay, delta is a Dirac function,

is as follows

The latency of the null path (target null path),

the target air interface path reaches the target terminal dayThe amplitude gain of the line;

transmitting for the u th base station antenna

The antenna gain of the base station in the mth signal transmission direction of the air interface path (target air interface path), BS is the base station,

transmitting for the u base station antenna

The departure angle of the mth signal transmission direction of the air interface path (target air interface path), λ is the wavelength of the electromagnetic wave,

is composed of

The angle to the u-th base station antenna vector,

transmitting for the u th base station antenna

The doppler frequency of the mth signal transmission direction of the air interface path (target air interface path);

antenna transmission of u-th base station

The initial phase of the mth signal transmission direction of the air interface path (target air interface path); m is the number of the signal transmission direction, and the range of m is 1~M.

In the antenna testing method provided in this embodiment, based on the target channel parameter data corresponding to each air interface path, the amplitude gain corresponding to each terminal antenna is obtained, and the base station antenna gain in each signal transmission direction corresponding to each air interface path is obtained; and then respectively determining the spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path based on the amplitude gain and the antenna gain, and accurately obtaining the spatial channel gain according to the amplitude gain and the antenna gain, so as to improve the accuracy of the spatial channel gain, further improve the accuracy of channel impulse response, and further improve the accuracy and efficiency of antenna testing.

Fig. 9 is a flowchart of an antenna testing method according to another embodiment of the present application, and as shown in fig. 9, step S403 may include:

step S901: sequentially acquiring a plurality of target channel impulse responses corresponding to target moments based on the time sequence of the channel impulse responses in the channel simulation data;

step S902: and superposing each target channel impulse response and the corresponding channel signal to obtain a channel test signal corresponding to the target moment.

In this embodiment, when the channel simulation data is obtained, the channel simulator sequentially obtains a plurality of target channel impulse responses at a target time based on a time sequence of channel impulse responses in the channel simulation data, that is, traverses the channel simulation data according to the time sequence of channel impulse responses in the channel simulation data, obtains a plurality of target channel impulse responses currently traversed (at the target time), so as to obtain a target channel impulse response corresponding to a terminal posture of a terminal to be tested at a certain time (at the target time), where the target channel impulse responses correspond to channel signals of a base station one to one.

And then, superposing each target channel impulse response and the corresponding channel signal to obtain a channel test signal corresponding to a target moment, and transmitting the channel test signal corresponding to the target moment to the terminal to be tested so that the terminal to be tested tests based on the channel test signal to obtain a test result, thereby realizing the throughput test of the terminal to be tested in the terminal posture corresponding to the target moment until the channel simulation data traverse is completed, namely the channel impulse response in the channel simulation data is obtained.

According to the antenna test method provided by the embodiment, a plurality of target channel impulse responses corresponding to target moments are sequentially obtained based on the time sequence of the channel impulse responses in the channel simulation data, then each target channel impulse response and the corresponding channel signal are superposed to obtain the channel test signal corresponding to the target moment, and the correlation between the test result and the antenna index is established through the antenna OTA directional diagram, so that the test result can reflect the actual external field performance of the terminal, the accuracy and the efficiency of the antenna test are improved, and the correlation between the terminal attitude and the test result is established through the terminal attitude rotation data, so that the test result can reflect the antenna performance of different attitudes of the terminal in the same channel environment.

Fig. 10 is a flowchart of an antenna testing method according to another embodiment of the present application, and as shown in fig. 5, the antenna testing system further includes a channel simulator and a shielding box for accommodating a terminal to be tested, where the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box.

The channel simulator is in wired connection with the base station, directly receives a plurality of channel signals transmitted by the base station through wired connection, the channel signals can include channel signals of all multipath channels of all base station antennas of the base station, and the shielding box can shield all signals and avoid transmitting the signals into the shielding box. The shielding box is provided with a plurality of radio frequency interfaces, for example, if each radio frequency interface is used for transmitting a channel signal of an air interface path, the number of the radio frequency interfaces is consistent with or greater than that of the air interface paths of a multipath channel, the channel simulator is connected with the radio frequency interfaces, that is, each channel transmitting end of the channel simulator is connected with one radio frequency interface, and the terminal to be tested is in radio frequency connection with the radio frequency interface point, so that the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interfaces, and is in wired connection with the channel simulator through the base station and in radio frequency direct connection with the terminal to be tested through the channel simulator, so that a real antenna of the terminal to be tested is not needed in the testing process.

As shown in fig. 10, the antenna testing method is applied to a terminal to be tested of an antenna testing system, and the method may include:

step S1001: receiving a channel test signal sent by a channel simulator through radio frequency connection, wherein the channel test signal is generated by the channel simulator based on a received channel signal of a base station and channel simulation data, and the channel simulation data is generated by the channel simulator based on an antenna OTA directional diagram and channel parameter data;

step S1002: and running a test case for testing based on the channel test signal to obtain a test result.

In this embodiment, the terminal to be tested receives a channel test signal sent by the channel simulator through the radio frequency connection, that is, the channel test signal is transmitted to the terminal to be tested through the radio frequency connection, the terminal to be tested performs a test based on the channel test signal to obtain a test result, specifically, the terminal to be tested runs a throughput test case, and performs a test through the received channel test signal and the throughput test case to obtain a test result, where the test result includes data such as signal strength and rate.

The channel parameter data includes interference, fading, signal strength, and environmental parameters of each signal propagation path. The generation process of the channel test signal and the generation process of the channel simulation data are the same as those in the above embodiments, and are not described in detail here.

In the antenna testing method provided by this embodiment, a channel testing signal sent by a channel simulator through a radio frequency connection is received, where the channel testing signal is generated by the channel simulator based on a received channel signal of a base station and channel simulation data, and the channel simulation data is generated by the channel simulator based on an antenna OTA directional diagram and channel parameter data; and then, running the test case based on the channel test signal to obtain a test result, establishing the association between the test result and the antenna index through the antenna OTA directional diagram so that the test result can reflect the actual external field performance of the terminal, improving the accuracy and efficiency of the antenna test, and establishing the association between the terminal attitude and the test result through the terminal attitude rotation data so that the test result can reflect the antenna performance of different attitudes of the terminal in the same channel environment. Meanwhile, the base station is in wired connection with the channel simulator, and the channel simulator is directly connected with the radio frequency of the terminal to be tested, so that a real antenna of the terminal to be tested is not needed in the testing process, and the accuracy and the efficiency of antenna testing are further improved.

Fig. 11 shows a schematic structural diagram of an antenna testing apparatus provided in the present application. The antenna test apparatus 1100 provided in the present application includes: an acquisition module 1101, a determination module 1102, a generation module 1103 and a transmission module 1104;

in one possible implementation of the method according to the invention,

the determining module is configured to determine channel emulation data based on the antenna OTA pattern and the channel parameter data;

It should be understood that the antenna test apparatus herein is embodied in the form of a functional module. The term "module" herein may be implemented by software and/or hardware, and is not particularly limited thereto. For example, a "module" may be a software program, a hardware circuit, or a combination of both that implements the functionality described above. The hardware circuitry may include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group of processors) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality.

Referring to fig. 5, the antenna testing system further includes a channel simulator, a terminal to be tested, and a shielding box for accommodating the terminal to be tested, wherein the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box; as shown in fig. 5, the channel simulator is connected to the base station by wire, and directly receives a plurality of channel signals transmitted by the base station through the wire connection, the channel signals may include channel signals of all multipath channels of all base station antennas of the base station, and the shielding box may shield all signals and prevent the signals from being transmitted into the shielding box. For example, if each radio frequency interface is used for transmitting a channel signal of an air interface path, the number of the radio frequency interfaces is consistent with or greater than that of the air interface paths of a multipath channel, the channel simulator is connected with the radio frequency interfaces, that is, each channel transmitting end of the channel simulator is connected with one radio frequency interface, and a terminal to be tested is in radio frequency connection with the radio frequency interface point, so that the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interfaces, in addition, the wired connection with the channel simulator through the base station and the radio frequency direct connection between the channel simulator and the terminal to be tested are realized, and a real antenna of the terminal to be tested is not needed in the test process.

The generation process of the channel test signal and the generation process of the channel simulation data are the same as those in the above embodiments, and are not described in detail herein.

The present application further provides a channel simulator, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the channel simulator, cause the channel simulator to perform the antenna testing method as set forth in any one of the possible implementations of the second aspect above.

The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to perform the antenna testing method as set forth in the first aspect above or any of the possible implementations of the first aspect.

The present application further provides a chip, where the chip includes a processor and a data interface, and the processor reads an instruction stored in a memory through the data interface and executes the antenna testing method according to any one of the first aspect or possible implementation manners of the first aspect.

Optionally, the chip may further include a memory, where instructions are stored in the memory, and the processor is configured to execute the instructions stored in the memory, and when the instructions are executed, the processor is configured to execute the antenna testing method according to the first aspect or any one of possible implementation manners of the first aspect.

The memory may be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM), or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, etc.

In the embodiment of the present application, "and/or" describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and the like, refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The antenna test method is characterized by being applied to a terminal to be tested of an antenna test system, wherein the antenna test system further comprises a channel simulator and a shielding box for containing the terminal to be tested, and the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the antenna test method comprises the following steps:

2. The antenna test method of claim 1, wherein the channel parameter data includes interference, fading, signal strength, and environmental parameters for each signal propagation path.

3. The antenna test method of claim 1 or 2,

the shielding box is provided with a radio frequency interface, and the channel simulator is in radio frequency connection with the terminal to be tested through the radio frequency interface.

4. The antenna test method is characterized in that the antenna test method is applied to a channel simulator of an antenna test system, the antenna test system further comprises a shielding box for containing a terminal to be tested, and the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the antenna test method comprises the following steps:

acquiring an antenna OTA directional diagram and channel parameter data;

and transmitting the channel test signal to the terminal to be tested through radio frequency so that the terminal to be tested performs testing based on the channel test signal to obtain a test result.

5. The antenna test method of claim 4, wherein prior to determining channel emulation data based on the antenna OTA pattern and the channel parameter data, further comprising:

acquiring terminal attitude rotation data of the terminal to be tested;

determining channel impulse responses corresponding to the terminal gestures based on the antenna OTA directional diagram, the channel parameter data and the terminal gesture rotation data;

and taking the channel impulse response as channel simulation data.

6. The antenna test method of claim 5, wherein the step of determining a channel impulse response for each terminal attitude based on the antenna OTA pattern, the channel parameter data, and the terminal attitude rotation data comprises:

7. The antenna testing method of claim 6, wherein the step of determining target channel parameter data corresponding to each terminal attitude in the terminal attitude rotation data based on the channel parameter data comprises:

traversing terminal attitude rotation data of a terminal to be tested to obtain a currently traversed target terminal attitude;

8. The antenna test method of claim 6, wherein the step of determining the channel impulse response corresponding to each terminal attitude based on the antenna OTA pattern and the target channel parameter data comprises:

respectively acquiring the terminal antenna gain of each terminal antenna in each signal receiving direction based on the antenna OTA directional diagram;

9. The antenna test method of claim 8, wherein the step of obtaining the terminal antenna gain of each terminal antenna in each signal receiving direction based on the antenna OTA pattern comprises:

10. The antenna testing method according to claim 8, wherein the step of respectively determining, based on the target channel parameter data, a spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path includes:

11. The antenna testing method according to claim 10, wherein the step of respectively determining, based on the amplitude gain and the base station antenna gain, a spatial channel gain of each terminal antenna in each signal receiving direction corresponding to each air interface path includes:

12. The antenna testing method according to claim 11, wherein the step of determining, based on the time delay, the amplitude gain, and the base station antenna gain, spatial channel gains of the terminal antennas in the signal receiving directions corresponding to the air interface paths respectively includes:

13. The antenna test method according to any of the claims 4 to 12, wherein the step of generating a channel test signal based on the received channel signal of the base station and the channel simulation data comprises:

14. The antenna test method according to any of claims 4 to 12, characterized in that the channel parameter data comprises interference, fading, signal strength and environmental parameters of the respective signal propagation path.

15. The antenna testing method of any one of claims 4 to 12, wherein the shielding box is provided with a radio frequency interface, and the channel simulator is radio-frequency connected with the terminal to be tested through the radio frequency interface.

16. An antenna test apparatus, comprising: the device comprises an acquisition module, a determination module, a generation module and a transmission module;

17. A channel simulator, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the channel simulator, cause the channel simulator to carry out the antenna testing method of any one of claims 4 to 15.

18. The antenna test system is characterized by further comprising a channel simulator, a terminal to be tested and a shielding box for containing the terminal to be tested, wherein the channel simulator is in radio frequency connection with the terminal to be tested in the shielding box;

the terminal to be tested receives a channel test signal sent by a channel simulator through radio frequency, and runs a test case for testing based on the channel test signal to obtain a test result.

19. A computer-readable storage medium, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the antenna testing method of any one of claims 1 to 3 or 4 to 15.