CN116996136B - Calibration method based on signaling control, signaling comprehensive tester and system - Google Patents

Abstract

The invention discloses a calibration method based on signaling control, a signaling comprehensive tester and a system, wherein the method comprises the following steps: when the appointed working mode is a calibration mode, responding to a calibration response frame sent by the tested piece, and sending a calibration configuration frame and a calibration request frame to the tested piece so as to enable the tested piece to send a detection signal for calibration; receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame; analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area. The invention realizes calibration by adopting a signaling mode, and solves the defect that the calibration and measurement in the existing non-signaling mode depend on a wired communication interface.

Description

A calibration method based on signaling control and a signaling comprehensive tester and system

Technical Field

The present invention relates to the field of wireless communications, and in particular to a calibration method based on signaling control and a signaling comprehensive tester and system.

Background technique

At present, the calibration and measurement of wireless communication products on the production line usually use non-signaling control methods. As shown in Figure 1, in the traditional non-signaling mode, the transmission of instructions and calibration values is completed through the data control line. The host computer first controls the device under test to transmit a signal to the detection terminal through the data control line. After receiving the signal, the detection terminal performs relevant tests and sends the calculated parameter calibration value to the host computer through the data control line. The host computer sends the calibration value to the device under test through the data control line. The device under test then updates the RF parameters until the calibration is completed.

In the calibration mode, the host computer needs to connect to the device under test and the detection terminal through the data control line. For wireless communication products that lack peripheral control ports, calibration and measurement in non-signaling mode are difficult to implement, which increases the complexity of non-signaling testing.

Summary of the invention

According to one aspect of the present invention, a calibration method, a signaling comprehensive tester, and a system based on signaling control are provided, which use wireless signaling to implement calibration and measurement, thereby solving the defect that calibration and measurement in the existing non-signaling mode rely on a wired communication interface.

In a first aspect, the present invention discloses a calibration method based on signaling control, which is executed by a detection terminal.

The detection terminal is connected to at least one device under test, and the detection terminal interacts with the device under test through wireless signaling, and the wireless signaling is data transmission through wireless data packets according to the communication standard protocol; the method includes the following steps:

Sending a work request frame to the device under test in a signaling manner, so that the device under test enters a specified working mode; the specified working mode includes a calibration mode or a measurement mode;

When the designated working mode is the calibration mode, in response to the calibration response frame sent by the device under test, a calibration configuration frame and a calibration request frame are sent to the device under test, so that the device under test sends a detection signal for calibration;

receiving and parsing the detection signal, and sending a calibration data frame according to the detection signal to calibrate the system parameters of the device under test, wherein the calibration data frame is used to control the device under test to update the system parameters according to the content of the calibration data frame;

Sending a calibration data frame according to the detection signal to calibrate the system parameters of the device under test includes:

The parameter measurement value of the device under test in the detection signal is analyzed to determine whether the parameter measurement value is within a target calibration area. When the parameter measurement value is not within the target calibration area, the system parameter of the device under test is calibrated and compensated.

In some embodiments, the method further includes: when the parameter measurement value is not within the target calibration area, calibrating and compensating the system parameter of the device under test, specifically,

When the parameter measurement value is not within the target calibration area, calculating a current calibration value based on the parameter measurement value and the parameter target value;

Sending a calibration data frame including the current calibration value, so that the device under test compensates and updates the system parameters according to the current calibration value to obtain the latest system parameters;

Sending a signal request frame again to make the device under test send a detection signal; the detection signal uses the latest system parameters;

The above steps are repeated until the latest system parameter measurement value is in the target calibration area, and a calibration end frame is sent to complete the calibration.

In some implementations, the work request frame includes a calibration request frame and a calibration end frame, and the calibration request frame, calibration configuration frame, calibration data frame and calibration end frame are all calibration control frames based on a wireless communication standard protocol and are transmitted through wireless signaling;

The calibration request frame is used to establish a calibration connection between the detection terminal and the device under test;

The calibration configuration frame is used to control the device under test to set system parameters;

The calibration data frame is used to transmit the current calibration value;

The calibration end frame is used to exit the calibration mode.

In some implementations, the calibration request frame, calibration configuration frame, calibration data frame and calibration end frame all include a frame header, calibration control data and a frame tail; the calibration control data is used to describe the frame type and calibration data.

In some embodiments, when the device under test includes a Bluetooth communication module, the calibration control data is written into an LMP frame based on the Bluetooth standard; the LMP frame includes a frame header, calibration control data and a frame trailer, the frame header is used to indicate the packet type and the length of the calibration control data, and the calibration control data includes an operation code, system parameters, and a current calibration value.

In some embodiments, when the detection terminal receives multiple detection signals simultaneously, the device under test that sends the detection signal is determined through a transmission source test, and system parameters of the device under test are measured respectively according to the detection signals, or calibration data frames are sent to calibrate the system parameters of the device under test.

In some embodiments, the switching between the calibration mode and the measurement mode is also implemented by the following steps:

Sending a calibration end frame to the device under test, so that the device under test receives the calibration end frame, exits the calibration mode and enters the measurement mode;

When the designated working mode is the measurement mode, in response to a response frame sent by the device under test, a measurement configuration frame is sent to the device under test, so that the device under test sends a response frame after receiving the measurement configuration frame;

A signal request frame is sent to the device under test, so that the device under test receives the signal request frame and sends a signal to be measured to the detection terminal; the signal to be measured includes a parameter measurement value.

In some embodiments, a host computer is also included, the detection terminal is a signaling comprehensive tester, and the host computer is connected to the signaling comprehensive tester by wire or wirelessly; the host computer is used to store or display system parameters; the system parameters include key parameters for controlling power or frequency; the parameter measurement values include transmission power intensity, receiving power intensity, frequency, modulation rate or packet length.

In a second aspect, the present invention discloses a signaling comprehensive tester, which includes a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal transceiver unit, and a communication interface;

The main control unit is used to control the scheduling of the signaling interaction unit, the calibration unit, and the signal measurement unit;

The calibration unit is used to calculate the current calibration value according to the detection signal of the measured object;

The signal measuring unit is used to obtain system parameters according to the detection signal of the device under test;

The signaling interaction unit is used to output the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content;

The radio frequency signal transceiver unit is used to receive the detection signal of the device under test or send the wireless signal output by the signaling interaction unit;

The communication interface is used to communicate with the host computer and output control instructions, calibration results or measurement results.

In a third aspect, the present invention discloses a calibration system based on signaling control, characterized in that it includes a detection terminal and a device under test, wherein the detection terminal is connected to at least one device under test, and the detection terminal and the device under test transmit data via wireless signaling; the wireless signaling transmits data via wireless data packets in accordance with a communication specification protocol;

The detection terminal sends a work request frame to the device under test, and the device under test enters a specified working mode after receiving the request frame and returns a response frame; the specified working mode includes a calibration mode and a measurement mode;

When the designated working mode is the calibration mode, the detection terminal sends a calibration configuration frame to the device under test, the device under test receives the calibration configuration frame, determines the calibration system parameters, and returns a response frame;

The detection terminal sends a calibration request frame to the device under test in response to the response frame, and controls the device under test to send a detection signal of a system parameter to the detection terminal according to the calibration request frame;

The detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the device under test according to the detection signal to calibrate the system parameters of the device under test; the device under test receives the calibration data frame, and updates the system parameters according to the content of the calibration data frame.

The present application discloses a calibration method, a signaling comprehensive tester, and a system based on signaling control, which uses wireless signaling to control the device under test for calibration and measurement. The device under test and the detection terminal do not need to be physically connected to the antenna of the device under test through a data control line and transmit calibration values. Data is transmitted through wireless data packets during the calibration and measurement process, and does not rely on physical connections. After the calibration or measurement is completed, it is only necessary to switch the working mode of the device under test through a work request frame, without interrupting the test or switching the test environment, and without manually moving the device under test from the calibration station to the measurement station to complete the measurement work, thereby ensuring the continuity of the production test process, saving measurement and calibration costs, and thus improving test efficiency. At the same time, the detection terminal and the device under test are both developed based on communication specification protocols, and are controlled by wireless signaling. The detection terminal can calibrate or measure multiple devices under test at the same time, and can be compatible with RF chips from different manufacturers at the same time, realizing cross-chip platform compatibility of wireless calibration.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a block diagram of a calibration system in a conventional non-signaling mode;

2 is a structural block diagram of a detection terminal, a device under test and a host computer in a calibration system based on signaling control according to an embodiment of the present invention;

3 is a structural block diagram of a signaling comprehensive tester, a device under test and a host computer in a calibration system based on signaling control according to an embodiment of the present invention;

FIG4 is a structural block diagram of a signaling comprehensive tester according to an embodiment of the present invention;

5 is a schematic diagram of a flow chart of a signaling comprehensive tester in a calibration mode in a calibration method based on signaling control according to an embodiment of the present invention;

6 is a schematic diagram of a flow chart of a signaling comprehensive tester in a measurement mode in a calibration method based on signaling control according to an embodiment of the present invention;

7 is a schematic diagram of a flow chart of switching between a calibration mode and a measurement mode in a calibration method based on signaling control according to an embodiment of the present invention;

FIG8 is a schematic diagram of a signaling integrated tester connected to multiple DUTs in a calibration method based on signaling control according to an embodiment of the present invention;

FIG9 is a schematic diagram of a calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention;

FIG10 is a schematic diagram of another calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of another calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention.

In the figure: 10, signaling comprehensive tester; 20, device under test; 30, host computer; 101, main control unit; 102, calibration unit; 103, signaling interaction unit; 104, RF signal transceiver unit; 105, signal measurement unit; 106, communication interface.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are the described features, steps, operations, elements, components, projects, kinds and/or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds and/or groups. The terms "or", "and/or", "including at least one of the following" etc. used in this application can be interpreted as inclusive, or mean any one or any combination. Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

The present application provides a calibration method based on signaling control, a signaling comprehensive tester 10, and a system, which use wireless signaling to implement calibration and measurement, and solve the defect that calibration and measurement in the existing non-signaling mode rely on a wired communication interface.

Embodiment 1

This method is applied to a detection terminal, which includes a signaling comprehensive tester 10 or other terminals that support wireless signaling transmission, and the device under test 20 refers to a radio frequency chip, sensor or intelligent terminal with wireless communication functions such as Bluetooth and Wi-Fi, such as wearable devices, mobile phones and other intelligent terminals with Bluetooth functions, or mobile phones, tablets or mobile terminals with Wi-Fi functions. Both the detection terminal and the device under test are developed based on communication specification protocol standards, do not rely on wired communication interfaces, and control the device under test to send packets and complete calibration through wireless data packets. This solution is compatible with radio frequency chips from different manufacturers and realizes cross-chip platform compatibility of wireless calibration. In this embodiment, the detection terminal is a signaling comprehensive tester, which can achieve connection, calibration and measurement with the device under test through wireless signaling.

As shown in Figure 2, it is a schematic diagram of the connection relationship between the detection terminal, the device under test, and the host computer. In the present application, as shown in Figure 3, the detection terminal adopts a signaling comprehensive tester 10, and the signaling comprehensive tester 10 and the device under test use a conduction connection or an air interface connection, and transmits data through wireless signaling, that is, transmits data through wireless data packets. The data interaction between the signaling comprehensive tester and the device under test is based on wireless signaling, and calibration and measurement are completed during the transmission and reception of wireless data packets, which is significantly different from the traditional non-signaling transmission of instructions and calibration values through wired data control cables. This signaling comprehensive tester supports two test modes, air interface and conduction. When the device under test lacks an antenna, the signaling comprehensive tester and the device under test can establish a physical connection through a radio frequency line, and complete calibration and measurement in a conduction test environment; when the device under test has an antenna, the signaling comprehensive tester is wirelessly connected to the device under test. Whether in the air interface or conduction mode, the transmission of instructions and calibration values is achieved through wireless signaling. At the same time, the signaling comprehensive tester is connected to a host computer 30 by wire or wirelessly through a data control line such as a USB data line or a network cable. The host computer 30 is a computer for data display or data storage.

The signaling tester has multiple working modes under normal operation, including calibration mode and measurement mode. The calibration mode is used to calibrate the system parameters of the device under test, mainly including obtaining parameter measurement values and compensation calibration values. The system parameters include key parameters for controlling power or frequency; the parameter measurement values include transmission power intensity, receiving power intensity, frequency, modulation rate or packet length. When the signaling tester is in calibration mode, the device under test is controlled to enter calibration mode, complete system parameter configuration, transmit detection signals, and update compensation calibration values through wireless signaling. When the parameter measurement value meets the target calibration condition, it is considered that the calibration is qualified and the calibration test is completed.

The measurement mode is used to measure the system parameters of the device under test. When the signaling tester is in the measurement mode, the signaling tester controls the device under test through wireless signaling to complete the system parameter configuration and transmit the detection signal. After receiving the detection signal, the signaling tester obtains the parameter measurement value, uploads the analysis result to the host computer for data display or stores it locally to complete the measurement.

The signaling comprehensive tester realizes calibration and measurement through wireless signaling control, without relying on the host computer. It can be realized only by the signaling comprehensive tester and the device under test, thereby saving data control cables, RF cables, time and labor costs, and solving the problems of high production and testing costs, low efficiency and complex operation of existing non-signaling control methods.

Specifically, as shown in Figure 4, the signaling comprehensive tester includes a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal transceiver unit, and a communication interface. The main control unit is used to process the detection signal sent by the device under test, control the scheduling of the signaling interaction unit and the signal measurement unit and the calibration unit, and switch the calibration mode and the measurement mode; the calibration unit is used to calculate the current calibration value according to the detection signal of the device under test; the signal measurement unit is used to obtain the system parameters according to the detection signal of the device under test; the signaling interaction unit is used to output the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content; the radio frequency signal transceiver unit is used to receive the detection signal of the device under test or send the wireless signal output by the signaling interaction unit; the communication interface is used to communicate with the host computer and output the control instruction, calibration result or measurement result.

The RF signal transceiver unit includes an RF transceiver, an RF port, an antenna, an RF line, etc., and is connected to the device under test by conduction or air interface. In this application, air interface connection is adopted, and no cable control is required, which ensures the continuity of the production test process and saves measurement and calibration costs.

The main control unit 101 can be a central processing unit or an application-specific integrated circuit (ASIC), the calibration unit 102 can be a microprocessor or a computer-readable storage medium, the signaling interaction unit 103 can be a readily available field-programmable gate array (FPGA) or other programmable logic device, the signal measurement unit 105 can be a digital signal processor or other integrated circuit with signal processing capabilities, the communication interface 106 can be one or more USB interfaces, network ports, etc., the RF port, antenna, and RF line can be one or more, and the present invention does not impose specific limitations.

Embodiment 2

A calibration method based on signaling control is applied to the detection terminal as described in the first embodiment, and based on wireless signaling control, the device under test is calibrated through the following steps:

Sending a work request frame to the device under test in a signaling manner, so that the device under test enters a specified working mode; the specified working mode includes a calibration mode or a measurement mode;

When the designated working mode is the calibration mode, in response to the calibration response frame sent by the device under test, a calibration configuration frame and a calibration request frame are sent to the device under test, so that the device under test sends a detection signal for calibration;

The detection signal is received and analyzed, and a calibration data frame is sent according to the detection signal to calibrate the system parameters of the device under test, wherein the calibration data frame is used to control the device under test to update the system parameters according to the content of the calibration data frame.

Sending a calibration data frame according to the detection signal to calibrate the system parameters of the device under test includes:

The parameter measurement value of the device under test in the detection signal is analyzed to determine whether the parameter measurement value is within a target calibration area. When the parameter measurement value is not within the target calibration area, the system parameter of the device under test is calibrated and compensated.

When the device under test needs to be calibrated, the work request frame is a calibration request frame. After receiving the calibration request frame, the device under test enters the calibration mode and returns a response frame to the signaling comprehensive tester. After receiving the response frame, the signaling comprehensive tester sends a calibration configuration frame to the device under test. The device under test calibrates and configures the system parameters that need to be calibrated according to the calibration configuration frame and returns a response frame. After receiving the response frame, the signaling comprehensive tester sends a signal request frame to control the device under test to send a detection signal for the system parameters. After receiving the signal request frame, the device under test sends a detection signal to the signaling comprehensive tester. The signaling comprehensive tester receives and parses the detection signal, sends a calibration data frame to the device under test according to the detection signal, and the device under test updates the system parameters according to the content of the calibration data frame.

When the parameter measurement value is not within the target calibration area, the system parameter is calibrated and compensated, specifically,

When the parameter measurement value is not within the target calibration area, calculating a current calibration value based on the parameter measurement value and the parameter target value;

Sending a calibration data frame including the current calibration value, so that the device under test compensates and updates the system parameters according to the current calibration value to obtain the latest system parameters;

Sending a signal request frame again to make the device under test send a detection signal; the detection signal uses the latest system parameters;

The above steps are repeated until the latest system parameter measurement value is in the target calibration area, and a calibration end frame is sent to complete the calibration.

Through the above method, measurement, calibration and compensation are realized in the signaling mode without relying on the host computer. Compared with the traditional calibration mode that requires the host computer to connect the comprehensive tester and the device under test by wire, the device under test and the detection terminal do not need to be physically connected to the antenna of the device under test through the data control line to transmit the calibration value. During the calibration and measurement process, data is transmitted through wireless data packets without relying on physical connection. After the calibration is completed, it is only necessary to switch the working mode of the device under test through the work request frame. There is no need to interrupt the test or switch the test environment. There is no need to manually move the device under test from the calibration station to the measurement station to complete the measurement work, which ensures the continuity of the production test process, saves measurement and calibration costs, and improves test efficiency.

As shown in FIG5 , in the calibration mode, the working process of each unit in the signaling comprehensive tester is as follows:

Step S501: the main control unit 101 controls the signaling interaction unit 103 to send a calibration request frame to the device under test 20, so as to control the device under test 20 to enter a calibration mode;

Step S502: the main control unit 101 controls the signaling interaction unit 103 to send a calibration configuration frame to the device under test 20, so that the device under test 20 sets the system parameters that need to be calibrated according to the calibration configuration frame;

Step S503: the main control unit 101 controls the signaling exchange unit 103 to send a calibration request frame to the device under test 20, so as to control the device under test 20 to send a detection signal;

Step S504: the signal measurement unit 105 analyzes the detection signal sent by the device under test 20, obtains the parameter measurement value of the device under test, and forwards the obtained parameter measurement value to the main control unit;

Step S505: the main control unit 101 determines whether the parameter measurement value is within the target calibration area;

Step S506: the main control unit 101 forwards the parameter measurement value to the calibration unit 102;

Step S507: the calibration unit 102 calculates a current calibration value based on the parameter measurement value and the parameter target value, and forwards the current calibration value to the signaling interaction unit 103;

Step S508: the signaling interaction unit 103 writes the current calibration value into the calibration data frame information and sends it to the device under test 20;

Step S509: the device under test 20 receives the calibration data frame, updates the current calibration value and adjusts the RF configuration of the system parameters, and waits for the next instruction;

S503 to S509 are repeated until the system parameters belong to the target calibration area and the calibration is completed.

The system parameters include but are not limited to power and frequency parameters to be calibrated, and an expected interval is set based on the system parameters. When the system parameters belong to the expected interval, the current signal calibration is deemed to be up to standard and the calibration test is completed. After the signaling comprehensive tester completes the calibration of a certain system parameter, there is no need to exit the calibration mode, and steps S502 to S509 can be directly repeated to complete the calibration of other parameters, thereby reducing the complexity of the calibration.

When it is necessary to measure the device under test, the work request frame is a measurement request frame. After receiving the measurement request frame, the device under test enters the measurement mode and returns a response frame to the signaling comprehensive tester. After receiving the response frame, the signaling comprehensive tester sends a measurement configuration frame to the device under test. The device under test configures the system parameters according to the measurement configuration frame and returns a response frame. After receiving the response frame, the signaling comprehensive tester sends a signal request frame to control the device under test to send a detection signal of the system parameters. After receiving the signal request frame, the device under test sends a detection signal to the signaling comprehensive tester. The signaling comprehensive tester receives and parses the detection signal to obtain the parameter measurement value.

As shown in Figure 6, in this measurement mode, the working process of each unit of the signaling comprehensive tester is as follows:

Step S601: the main control unit 101 controls the signaling interaction unit 103 to send a measurement configuration frame to the device under test 20 to set the system parameter configuration to be measured;

Step S602: the main control unit 101 controls the signaling exchange unit 103 to send a signal request frame to the device under test 20, and controls the device under test 20 to send a signal to be measured;

Step S603: the signal measuring unit 105 analyzes the signal to be measured sent by the device under test 20 and forwards the obtained parameter measurement value to the main control unit 101;

After the measurement is completed, the main control unit 101 can store the measurement result locally or upload it to a host computer through the communication interface 106 for data display.

Specifically, the measurable system parameters include packet type, frequency, modulation rate, etc. If the device under test 20 is a wireless communication product that has been packaged and has no external communication interface, the connection between the RF signal transceiver unit 104 and the device under test 20 is preferably an air interface connection, and the device under test can be directly measured without unpacking, which improves measurement efficiency and saves measurement time and labor costs.

The configuration of the system parameters to be measured and the control of the device under test 20 to send a detection signal are all completed based on signaling control. The measurement process is close to the real wireless data packet interaction process, which improves the flexibility of the test and the accuracy of the measurement results.

The signaling tester switches between calibration mode and measurement mode through the following steps:

Sending a calibration end frame to the device under test, so that the device under test receives the calibration end frame, exits the calibration mode and enters the measurement mode;

When the designated working mode is the measurement mode, in response to a response frame sent by the device under test, a measurement configuration frame is sent to the device under test, so that the device under test sends a response frame after receiving the measurement configuration frame;

A signal request frame is sent to the device under test, so that the device under test receives the signal request frame and sends a signal to be measured to the detection terminal; the signal to be measured includes a parameter measurement value.

As shown in FIG7 , the signaling comprehensive tester 10 and the device under test 20 switch between the calibration mode and the measurement mode by the following method:

Step S701, the signaling comprehensive tester 10 sends a calibration end frame to the device under test 20;

Step S702: the device under test 20 receives the calibration end frame, exits the calibration mode and enters the measurement mode, and sends a response frame to the signaling comprehensive tester 10;

Step S703: the signaling comprehensive tester 10 sends a measurement configuration frame to the device under test 20;

Step S704: the device under test 20 receives the measurement configuration frame and sends a response frame to the signaling comprehensive tester 10;

Step S705: the signaling comprehensive tester 10 sends a signal request frame to the device under test 20;

Step S706: the device under test 20 receives the signal request frame and sends a signal to be measured to the signaling comprehensive tester 10, where the signal to be measured includes a parameter measurement value;

The signaling comprehensive tester analyzes the signal to be measured sent by the device under test 20 to obtain parameter measurement values.

It should be noted that, if the response frame is timed out or lost in the calibration mode or the measurement mode, the request is deemed invalid and the signaling comprehensive tester 10 will resend the corresponding request frame.

The signaling comprehensive tester 10 has both calibration and measurement functions, eliminating the trouble of testing at two workstations for calibration and measurement, saving instruments and reducing testing costs. The calibration end frame, measurement configuration frame and signal request frame are all sent to the device under test 20 in the form of wireless signaling, controlling the device under test 20 to switch the test mode, complete the system parameter configuration and transmit the signal to be measured, thereby ensuring the continuity of production testing and further improving the efficiency of production testing.

Furthermore, the method can also calibrate and measure multiple DUTs simultaneously. As shown in FIG8 , the signaling integrated tester can connect multiple DUTs simultaneously and control multiple DUTs simultaneously through wireless signaling. The number of DUTs is not limited to two.

When the signaling comprehensive tester receives multiple detection signals at the same time, the device under test that sends the detection signal is determined through the emission source test, and the system parameters of the device under test are measured or calibrated according to the detection signals.

When calibration is required, the device under test that sends the detection signal is first determined through the transmission source test, and the current calibration value is calculated. The current calibration value is then sent to the device under test corresponding to the transmission source through wireless signaling, and the latest system parameters of the device under test are controlled until the latest system parameter measurement values are in the target calibration area, thereby completing the calibration of multiple devices under test.

When it is necessary to measure the DUT, first determine the DUT that sends the detection signal through the emission source test, and analyze the RF performance. Then, classify the system parameters of each DUT by emission source, such as the RF index analysis results, and store them locally or upload them to the host computer, thereby completing the measurement of multiple DUTs.

The emission source test includes a series of tests such as RF index analysis and MAC address analysis, such as power calculation test, frequency deviation calculation test, source address and target address analysis, etc.

In a specific implementation, the RF signal transceiver unit of the signaling comprehensive tester can open one or more RF ports to the outside and install a single or multiple antennas. In the calibration and measurement process for multiple DUTs, the signaling comprehensive tester can use a single antenna to receive and process the calibration or measurement signals sent by different DUTs in sequence by presetting the calibration or measurement order of the DUTs to complete the calibration or measurement of multiple DUTs. It can also use MIMO (Multiple-Input Multiple-Output) mode to simultaneously receive and process the calibration or measurement signals of multiple DUTs to complete the calibration or measurement of multiple DUTs. The present invention does not impose specific restrictions.

Embodiment 3

In Example 1 and Example 2, the signaling comprehensive tester and the device under test transmit data via wireless signaling, which improves the efficiency of calibration and measurement and saves data control cables such as USB data cables and network cables and labor costs during production testing.

These include work request frames, configuration frames, calibration data frames, etc. The work request frames include calibration request frames and calibration end frames; the configuration frames include calibration configuration frames and measurement configuration frames. The calibration request frames, calibration configuration frames, calibration data frames and calibration end frames are collectively referred to as calibration control frames. The calibration control frames are all based on wireless communication standard protocols and are transmitted through wireless signaling to complete wireless signaling calibration tests and switching of the working modes of the device under test.

The calibration request frame is used to establish a calibration connection between the detection terminal and the device under test; the calibration configuration frame is used to control the device under test to set the system parameters to be calibrated; the measurement configuration frame is used to control the device under test to set the system parameters for measurement; the calibration data frame is used to transfer the current calibration value; and the calibration end frame is used to exit the calibration mode.

As shown in FIG9 , all calibration request frames, calibration configuration frames, calibration data frames and calibration end frames described above include a frame header, calibration control data and a frame trailer. The frame header is used for frame delimitation, symbol synchronization, DC offset compensation, description of packet type and effective length of calibration control data, etc. The calibration control data is used to describe the type of calibration control frame and other calibration data; the frame trailer is used to fill in the checksum information. The difference between the calibration request frame, calibration configuration frame, calibration data frame and calibration end frame mainly lies in the difference in the calibration control data part.

It should be noted that there is no difference between the transmission of frames during calibration and measurement. The parameter configuration frames and signal request frames mentioned in the measurement process, including the signal request frames in the calibration process, all exist in the prior art. The calibration control frames such as the calibration request frame, calibration configuration frame, calibration data frame, and calibration end frame are all developed based on the wireless communication standard protocol and comply with the wireless communication protocol standard specifications.

When the device under test includes a Bluetooth communication module, as shown in FIG10 , an improvement is made based on the LMP (LinkManager Protocol) frame in the Bluetooth standard, and the calibration control data is written into the LMP frame based on the Bluetooth standard to implement wireless signaling calibration.

In the LMP calibration control frame, the frame header includes an access code and header information, wherein the access code is used for frame delimitation, symbol synchronization, and DC offset compensation, and the header information is used to indicate the packet type and the effective length of the calibration control data, etc.; the calibration control data includes an operation code, system parameters, and calibration values, the operation code is used to indicate the calibration control frame type, and the target calibration value is used to indicate the type of the current system parameters; the frame tail is used to fill in some check information.

When the device under test receives a wireless data packet, it first uses the access code to perform frame delimitation, symbol synchronization, and DC offset compensation to ensure the correct parsing of subsequent bit information. It then uses the operation code to identify the category to which the data frame belongs, obtains parameter information through system parameters, and finally reads the calibration value to update the calibration data to complete the calibration.

The operation code, system parameters, and calibration values are all composed of one or more bits. Different bit information can represent different data information. For example, the operation code 1011010 or 1011111 can indicate that the control frame is a calibration data frame or a calibration configuration frame, and the system parameter 01 or 11 can indicate that the control frame is used for power or frequency calibration. The present invention does not impose any specific limitations.

As shown in Figure 11, the calibration control frame can also be extended and applied to other wireless communication standards. For example, in the IEEE802.11a protocol, the frame header of the calibration control frame can be a short training field, a long training field, a signaling field, and a service field; the calibration control data can be a data field; and the frame tail can be a tail and padding.

From the perspective of protocol control, this embodiment transmits calibration control information through a calibration control frame to complete calibration, is compatible with radio frequency chips from different manufacturers, and achieves cross-chip platform compatibility of wireless calibration.

Embodiment 4

Based on the same inventive concept, the present application also provides a calibration system based on signaling control, including a detection terminal and a device under test, wherein the detection terminal is connected to at least one device under test, and the detection terminal and the device under test transmit data via wireless signaling; the wireless signaling is data transmission via wireless data packets in accordance with a communication specification protocol;

The detection terminal sends a work request frame to the device under test, and the device under test enters a specified working mode after receiving the request frame and returns a response frame; the specified working mode includes a calibration mode and a measurement mode;

When the designated working mode is the calibration mode, the detection terminal sends a calibration configuration frame to the device under test, the device under test receives the calibration configuration frame, determines the calibration system parameters, and returns a response frame;

The detection terminal sends a calibration request frame to the device under test in response to the response frame, and controls the device under test to send a detection signal of a system parameter to the detection terminal according to the calibration request frame;

The detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the device under test according to the detection signal to calibrate the system parameters of the device under test; the device under test receives the calibration data frame, and updates the system parameters according to the content of the calibration data frame.

The specific implementation process of this system is the same as that of the above embodiment and will not be described in detail here.

The present application provides a calibration method, signaling comprehensive tester, and system based on signaling control. The device under test is controlled by wireless signaling to perform calibration and measurement. The device under test and the detection terminal do not need to be physically connected to the antenna of the device under test and transmit calibration values through a data control line. Data is transmitted through wireless data packets during the calibration and measurement process, and does not rely on physical connections. After the calibration or measurement is completed, it is only necessary to switch the working mode of the device under test through a work request frame, without interrupting the test or switching the test environment, and without manually moving the device under test from the calibration station to the measurement station to complete the measurement work, thereby ensuring the continuity of the production test process, saving measurement and calibration costs, and thus improving test efficiency. At the same time, the detection terminal and the device under test are developed based on wireless communication protocol standards, and are controlled by wireless signaling. The detection terminal can calibrate or measure multiple devices under test at the same time, and can be compatible with RF chips from different manufacturers at the same time, realizing cross-chip platform compatibility of wireless calibration.

Based on the same inventive concept, the present application also provides a device, which may include: a memory storing executable program code;

a processor coupled to the memory;

A transceiver used to communicate with other devices or communication networks and to receive or send network messages;

A bus used to connect memory, processors, and transceivers for internal communication.

The transceiver receives messages transmitted over the network and passes them to the processor through the bus. The processor calls the executable program code stored in the memory through the bus for processing, and passes the processing results to the transceiver through the bus for sending, thereby realizing the method provided in the above-mentioned embodiment 2 of the present application.

The embodiment of the present application also provides a non-transitory machine-readable storage medium, on which an executable program is stored. When the executable program is executed by a processor, the processor executes the method provided in the above-mentioned embodiment 2.

The present invention discloses a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute the described calibration method based on signaling control.

The present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program can be operated to enable a computer to execute the described calibration method based on signaling control.

The embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, and may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

Through the specific description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution can be essentially or partly contributed to the prior art in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable rewritable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims (10)

1. The calibration method based on the signaling control is characterized by being executed by a detection terminal, wherein the detection terminal is at least connected with one tested piece, the detection terminal and the tested piece interact in a wireless signaling mode, and the wireless signaling is data transmission through a wireless data packet according to a communication standard protocol; the method comprises the following steps:

Transmitting a calibration request frame to a measured piece by using a wireless signaling, so that the measured piece returns a response frame after receiving the calibration request frame, and entering a calibration mode; the calibration mode is used for calibrating system parameters of the measured piece, and comprises the steps of obtaining a parameter measurement value and a compensation calibration value, completing system parameter configuration, transmitting a detection signal and updating the compensation calibration value, and when the parameter measurement value meets a target calibration condition, the calibration is considered to be up to standard, and a calibration test is completed; the system parameters include control power parameters and/or frequency parameters; the parameter measurement value comprises a transmitting power intensity, a receiving power intensity, a frequency, a modulation rate or a packet length;

When entering a calibration mode, responding to a calibration response frame sent by a tested piece, sending a calibration configuration frame and a signal request frame to the tested piece so that the tested piece sends a detection signal for calibration;

Receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame;

and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:

Analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area;

When the measured piece is required to be measured, a measurement request frame is sent to the measured piece through wireless signaling, so that the measured piece returns a response frame after receiving the measurement request frame, and a measurement mode is entered; the measurement mode is used for measuring system parameters of the measured piece, controlling the measured piece to complete system parameter configuration and transmit signals to be measured, acquiring parameter measurement values after receiving the signals to be measured, uploading analysis results to an upper computer for data display or storing the analysis results to a local place, and completing measurement.

2. The signaling control-based calibration method of claim 1, wherein when the parameter measurement is not within the target calibration area, performing calibration compensation on the system parameter of the measured part, further comprising:

calculating a current calibration value based on the parameter measurement value and a parameter target value when the parameter measurement value is not in a target calibration area;

Sending a calibration data frame containing the current calibration value so that the measured piece carries out compensation updating on the system parameters according to the current calibration value to obtain the latest system parameters;

a signal request frame is sent again so that the tested piece sends out a detection signal; the detection signal uses the latest system parameters;

Repeating the steps until the latest system parameter measured value is in the target calibration area, and sending out a calibration end frame to finish calibration.

3. The method according to claim 2, wherein the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame are all calibration control frames based on a wireless communication standard protocol, and are transmitted through wireless signaling;

The calibration request frame is used for establishing calibration connection between the detection terminal and the tested piece;

The calibration configuration frame is used for controlling the tested piece to set system parameters;

the calibration data frame is used for transmitting a current calibration value;

the calibration end frame is used to exit the calibration mode.

4. A method of calibrating based on signaling control according to claim 3, wherein the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame each comprise a frame header, calibration control data and a frame tail; the calibration control data is used to account for frame type and calibration data.

5. The signaling control-based calibration method of claim 4, wherein when the part under test comprises a bluetooth communication module, the calibration control data is written into an LMP frame based on a bluetooth standard; the LMP frame comprises a frame head, calibration control data and a frame tail, wherein the frame head is used for describing the type of a packet and the length of the calibration control data, and the calibration control data comprises an operation code, a system parameter and a current calibration value.

6. The method according to claim 1, wherein when the detection terminal receives a plurality of detection signals or signals to be measured simultaneously, the detection terminal determines a measured object sending the detection signals through a test of a transmission source, measures system parameters of the measured object according to the signals to be measured, or calibrates the system parameters of the measured object according to the transmission of calibration data frames of the detection signals.

7. A method of calibration based on signalling control according to claim 3, characterized in that the switching between the calibration mode and the measurement mode is achieved by:

Transmitting a calibration end frame to a measured piece so that the measured piece receives the calibration end frame, exiting a calibration mode and entering a measurement mode;

When entering a measurement mode, responding to a response frame sent by a measured piece, and sending a measurement configuration frame to the measured piece so that the measured piece sends the response frame after receiving the measurement configuration frame;

Transmitting a signal request frame to a measured piece so that the measured piece receives the signal request frame and transmits a signal to be measured to the detection terminal; the signal to be measured comprises a parameter measurement.

8. The calibration method based on signaling control according to claim 1, wherein the detection terminal is a signaling comprehensive tester, and the signaling comprehensive tester is connected with an upper computer in a wired or wireless manner; the upper computer is used for storing or displaying system parameters.

9. A signaling comprehensive tester for implementing the calibration method according to any one of claims 1-8, characterized in that the detection terminal is implemented by the signaling comprehensive tester; the signaling comprehensive tester comprises a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal receiving and transmitting unit and a communication interface;

The main control unit is used for controlling the dispatching of the signaling interaction unit, the calibration unit and the signal measurement unit;

the calibration unit is used for calculating a current calibration value according to the detection signal of the measured piece;

the signal measuring unit is used for acquiring system parameters according to the detection signals of the detected piece;

The signaling interaction unit is used for outputting the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content;

The radio frequency signal receiving and transmitting unit is used for receiving a detection signal and a signal to be measured of a measured piece or transmitting a wireless signal output by the signaling interaction unit;

The communication interface is used for communicating with an upper computer and outputting a control instruction, a calibration result or a measurement result.

10. The calibration system based on signaling control is characterized by comprising a detection terminal and a tested piece, wherein the detection terminal is at least connected with one tested piece, and the detection terminal and the tested piece perform data transmission through wireless signaling; the wireless signaling is data transmission through wireless data packets according to a communication standard protocol;

The detection terminal sends a calibration request frame or a measurement request frame to the measured piece;

the measured piece returns a response frame after receiving the calibration request frame, and the detection terminal receives the response frame and enters a calibration mode;

The calibration mode is used for calibrating system parameters of the measured piece, and comprises the steps of obtaining a parameter measurement value and a compensation calibration value, completing system parameter configuration, transmitting a detection signal and updating the compensation calibration value, and when the parameter measurement value meets a target calibration condition, the calibration is considered to be up to standard, and a calibration test is completed; the system parameters include control power parameters and/or frequency parameters; the parameter measurement value comprises a transmitting power intensity, a receiving power intensity, a frequency, a modulation rate or a packet length;

when entering a calibration mode, the detection terminal sends a calibration configuration frame to a tested piece, the tested piece receives the calibration configuration frame, determines calibrated system parameters and returns a response frame;

The detection terminal responds to the response frame, sends a signal request frame to the detected piece, controls the detected piece to determine the calibrated system parameters, and sends a detection signal of the system parameters to the detection terminal;

The detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the detected piece according to the detection signal to calibrate the system parameters of the detected piece; the measured piece receives the calibration data frame and updates system parameters according to the content of the calibration data frame;

and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:

Analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area;

When the measured piece is required to be measured, the measured piece returns a response frame after receiving a measurement request frame, and a detection terminal receives the response frame and enters a measurement mode;

The measuring mode is used for measuring system parameters of the measured piece, when the measuring mode is in the measuring mode, the detecting terminal controls the measured piece to complete system parameter configuration and transmit signals to be measured through wireless signaling, the detecting terminal obtains parameter measurement values after receiving the signals to be measured, and the analyzing result is uploaded to the upper computer for data display or local storage to complete measurement.