Automatic roaming test method and system for double 5G WIFI devices

Abstract

The invention discloses a double 5G WIFI device roaming automation test method and system, and the method comprises the following steps: S1, deploying a to-be-tested device in a wireless signal overlapping coverage area of two APs, the to-be-tested device being configured with two radio frequency modules; s2, controlling a digital programmable attenuator to automatically adjust the wireless signal intensity of the two APs through a test control unit, and simulating the signal intensity change caused by the movement of the to-be-tested equipment between the two APs; s3, when a roaming threshold value set by the to-be-tested equipment and a signal difference value condition between double frequencies are met, the to-be-tested equipment completes roaming switching from one AP to the other AP; and S4, collecting and recording test parameters of the to-be-tested equipment in the roaming process in real time. According to the invention, the roaming test of the double 5G WIFI devices can be realized automatically, efficiently and accurately, so that the high-quality test requirement is met.

Description

Technical Field

[0001] This invention relates to the field of wireless communication testing technology, and in particular to an automated testing method and system for dual 5G WIFI device roaming. Background Technology

[0002] With the rapid development of the Internet of Things (IoT) and smart homes, dual 5G Wi-Fi devices, supporting higher bandwidth and lower latency 5GHz band communication, have become standard features in mainstream wireless terminals. The "roaming performance" of these devices—the ability to smoothly switch from one Access Point (AP) to another—directly impacts user experience. For example, in multi-AP coverage scenarios such as large venues and office buildings, high roaming handover latency and packet loss rates can lead to video stuttering and file transfer interruptions. Therefore, accurate and efficient testing of the roaming performance of dual 5G Wi-Fi devices is crucial.

[0003] Currently, most roaming tests for wireless devices rely on manual methods. This approach is not only inefficient but also susceptible to human error, leading to poor accuracy and reliability of the test data. For example, manually adjusting the signal strength of the access point (AP) fails to accurately simulate signal changes during actual movement, making it impossible to accurately reflect the device's roaming performance under varying speeds and complex signal conditions. Furthermore, existing testing methods are cumbersome and incomplete in collecting and analyzing various parameters during roaming. They typically only obtain some basic parameters, making it difficult to collect and analyze critical parameters such as roaming handover time, peak and trough traffic, thus hindering a comprehensive assessment of the device's roaming performance.

[0004] Furthermore, the core feature of dual 5G Wi-Fi devices is that they process signals from two different 5GHz frequency bands using dual 5G radios. Their roaming mechanism relies on the coordinated operation of the two radios (e.g., one radio maintains the connection while the other scans for candidate APs). However, existing testing schemes are mostly designed for single-radio devices, making it difficult to reproduce the complex scenario of dual 5G radios receiving signals from different APs. They also fail to consider the independent signal conditioning requirements of the dual 5G radios, resulting in test results that cannot reflect the true performance of the devices.

[0005] Therefore, there is an urgent need for an automated, efficient, and accurate roaming testing method and system for dual 5G WIFI devices to meet the market's testing needs for high-quality dual 5G WIFI devices. Summary of the Invention

[0006] The problem to be solved by the present invention is to provide an automated testing method and system for dual 5G WIFI device roaming, so as to overcome the shortcomings of the existing technology in the low efficiency, lack of comprehensiveness and accuracy of dual 5G WIFI device roaming testing.

[0007] The technical solution adopted by this invention to solve its technical problem is: an automated testing method for roaming dual 5G WIFI devices, comprising the following steps: S1, the device under test is deployed in the overlapping coverage area of ​​the wireless signals of two APs, and the device under test is configured with two radio frequency modules; S2, the test control unit controls the digital programmable attenuator to automatically adjust the wireless signal strength of the two APs respectively, simulating the signal strength change caused by the movement of the device under test between the two APs; S3, when the roaming threshold and the signal difference between the two frequencies set by the device under test are met, the device under test completes the roaming handover from one of the APs to the other AP; S4, collect and record the test parameters of the device under test during the roaming process in real time.

[0008] As a further improvement of the present invention, in S2, the 5G radio frequency two-channel signal strength of the two APs is adjusted by the four digitally controlled attenuators respectively. The 5G radio frequency two-channel signals of each AP are connected to the two digitally controlled attenuators respectively. The signal strength change of the device under test when it moves between the two APs is simulated by synchronously adjusting the attenuation value.

[0009] As a further improvement of the present invention, in S2, the specific method for simulating the signal strength change caused by the movement of the device under test between the two APs is as follows: In the initial state, one of the radio frequency modules of the device under test is connected to one of the access points (APs). By increasing the attenuation value of the digital programmable attenuator corresponding to the AP, the signal strength is reduced. At the same time, by decreasing the attenuation value of the digital programmable attenuator corresponding to the other AP, the signal strength is increased, thereby simulating the movement of the device under test between the two APs.

[0010] As a further improvement of the present invention, in S3, the roaming threshold is a preset signal strength threshold value of the device under test. When the signal strength of the AP currently connected to the device under test is lower than the roaming threshold, another radio frequency module of the device under test starts to actively scan. When the signal strength of the other AP is detected to be higher than the signal strength of the currently connected AP and the signal difference is reached, the device under test is triggered to switch from the currently connected AP to the other AP.

[0011] As a further improvement of the present invention, in step S2, the attenuation adjustment step and adjustment interval of the digital programmable attenuator are adjusted to control the rate of change of the signal strength, so as to simulate different moving speeds of the device under test.

[0012] As a further improvement of the present invention, in step S4, a communication link is established between the two APs and the device under test, and bidirectional data transmission is performed in cooperation with the test control unit through the streaming terminal to collect real-time test parameters of the device under test during roaming. The test parameters include roaming switching time, signal strength, connection rate, packet loss rate, peak traffic and valley traffic.

[0013] As a further improvement of the present invention, the test control unit is communicatively connected to the AP and the digitally controlled attenuator, and the test control unit is equipped with an automated test platform, the automated test platform comprising: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define a decay change sequence to simulate the movement of the device under test between two APs; The data acquisition module is used to collect and record the test parameters of the device under test during the roaming process in real time.

[0014] As a further improvement of the present invention, the automated roaming test method for dual 5G WIFI devices also includes S5, repeating S2~S4 to achieve multiple rounds of testing and automatically generating a roaming test report; wherein, by reading the AP information of the currently connected device, it is determined whether the roaming is successful and an indication for the next round of roaming cycle is made.

[0015] This invention also provides an automated testing system for dual 5G WIFI device roaming, used to execute the automated testing method for dual 5G WIFI device roaming as described above, including: In the test environment, two access points (APs) are deployed, forming an overlapping wireless signal coverage area between the two APs. The programmable attenuator array consists of four digitally controlled attenuators, two of which are connected to the two 5G radio frequency signals of one of the APs, and the other two are connected to the two 5G radio frequency signals of the other AP. Each digitally controlled attenuator is also connected to an antenna. The test control unit is communicatively connected to the programmable attenuator array and the AP. The test control unit is equipped with an automated test platform, which includes: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define a decay change sequence to simulate the movement of the device under test between two APs; The data acquisition module is used to collect and record the test parameters of the device under test during the roaming process in real time; The results analysis module is used to automatically generate roaming test reports.

[0016] As a further improvement of the present invention, the dual 5G WIFI device roaming automated testing system also includes a Layer 2 switch and a streaming terminal. The streaming terminal is connected to the two APs through the Layer 2 switch, so that the test control unit and the streaming terminal form a communication link for bidirectional data transmission during roaming testing.

[0017] The beneficial effects of this invention are as follows: This invention provides an automated testing method and system for dual 5G WIFI device roaming. It precisely adjusts the two 5G radio frequency signals of two APs using a high-precision digital programmable attenuator, achieving accurate simulation of dynamic signal changes in real roaming scenarios. Relying on an automated test control unit, it achieves unmanned operation throughout the entire process of attenuation adjustment, signal triggering, data acquisition, and report generation, significantly improving testing efficiency and result consistency. For the dual-radio frequency characteristics of dual 5G devices, it accurately matches their roaming threshold and signal difference triggering logic, ensuring that the test closely matches the actual working mechanism of the device. It simultaneously collects multi-dimensional performance parameters and performs automated analysis to comprehensively evaluate roaming performance. Furthermore, it possesses good compatibility and scalability, effectively solving the problems of low efficiency, poor accuracy, and insufficient comprehensiveness in traditional testing, providing reliable support for performance optimization of dual 5G WIFI devices. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the automated testing system for dual 5G WIFI device roaming according to the present invention; Figure 2 This is a flowchart illustrating the steps of the automated roaming test method for dual 5G WIFI devices according to the present invention. Figure 3 This is a logic flowchart of the automated testing method for dual 5G WIFI device roaming according to the present invention. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0024] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0025] See Figure 2 and Figure 3 This invention provides an automated testing method for roaming dual 5G WIFI devices, comprising the following steps: S1, the device under test (DUT) is deployed in the overlapping wireless signal coverage area of ​​the two access points (APs). In this embodiment, the DUT is specifically a dual 5G Wi-Fi device, which is configured with two radio frequency modules.

[0026] S2, through the test control unit, controls the digital programmable attenuator to automatically adjust the wireless signal strength of the two APs respectively, simulating the signal strength change caused by the movement of the device under test between the two APs.

[0027] S3. When the roaming threshold and signal difference between the two frequencies set by the device under test are met, the device under test completes the roaming handover from one AP to another.

[0028] S4 collects and records the test parameters of the device under test during the roaming process in real time.

[0029] This invention presents an automated testing method for dual 5G Wi-Fi device roaming. Through automated process design, from simulating signal strength changes and triggering device roaming to collecting test parameters, no manual intervention is required, greatly improving testing efficiency. By using a digitally controlled attenuator to adjust the wireless signal strength of the access point (AP), the roaming situation under greater signal strength fluctuations can be accurately simulated. This allows for the simulation of wall-penetrating roaming effects under various conditions by combining the theoretical attenuation values ​​of various obstacles. At the same time, the comprehensive automatic collection of test parameters helps to more deeply and accurately evaluate the roaming performance of the device under test, providing detailed data support for product optimization.

[0030] Furthermore, to ensure the accuracy and reliability of the test results, multiple rounds of testing can be automatically performed. Therefore, the automated roaming test method for dual 5G WIFI devices of this invention also includes step S5: repeating S2~S4 to achieve multiple rounds of testing and automatically generating a roaming test report. This invention, by setting the function of repeatedly executing test steps in the method, can achieve multiple rounds of testing, thereby effectively detecting the stability of the device during multiple roaming processes. The system can also automatically generate a roaming test report, which not only improves the efficiency of test result processing and analysis but also makes the test results more intuitive and standardized, facilitating review and use by testers and R&D personnel.

[0031] Furthermore, in S2, four digitally controlled attenuators are used to adjust the 5G RF signal strength of the two APs respectively. Specifically, each AP's 5G RF signal is connected to two digitally controlled attenuators, and the signal strength change when the device under test moves between the two APs is simulated by synchronously adjusting the attenuation value.

[0032] Among them, the rate of change of signal strength can be controlled by adjusting the attenuation adjustment step and the adjustment interval of the digital programmable attenuator to simulate different moving speeds of the device under test.

[0033] This invention uses four digitally controlled attenuators to adjust the 5G radio frequency signal strength of two APs respectively, and synchronously adjusts the attenuation value. By adjusting the attenuation adjustment step and the adjustment interval, the signal strength change rate can be controlled. This can realistically simulate the signal change of the device under test at different moving speeds, making the test results closer to the actual use scenario and improving the accuracy and reliability of the test.

[0034] In S2, the specific method for simulating signal strength changes caused by the movement of the device under test between two access points is as follows: In the initial state, one of the radio frequency modules of the device under test is connected to one of the access points (APs). By increasing the attenuation value of the digital programmable attenuator corresponding to the AP, the signal strength is reduced; at the same time, by decreasing the attenuation value of the digital programmable attenuator corresponding to the other AP, the signal strength is increased, thereby simulating the movement of the device under test between the two APs.

[0035] In S3, the roaming threshold is a preset signal strength threshold for the device under test. When the signal strength of the AP currently connected to the device under test is lower than the roaming threshold, another RF module of the device under test starts to actively scan. When the signal strength of the scanned AP is higher than the signal strength of the currently connected AP and the signal difference is reached, the device under test is triggered to switch from the currently connected AP to the other AP, and the device under test completes the roaming switch.

[0036] In S4, a communication link is established between two APs and the device under test. The streaming terminal works with the test control unit to perform bidirectional data transmission to collect real-time test parameters of the device under test during roaming. The test parameters include roaming switching time, signal strength, connection rate, packet loss rate, peak traffic and valley traffic.

[0037] During the test, a communication link is established between the two APs and the device under test. The streaming terminal and the test control unit work together to perform bidirectional data transmission. With the help of TCPDUMP or Wireshark tools to capture and analyze packets, various test parameters such as roaming handover time, signal strength, connection rate, packet loss rate, peak traffic and valley traffic can be collected in real time.

[0038] In this invention, the test control unit is communicatively connected to the AP and the digitally controlled attenuator. The test control unit is equipped with an automated test platform, which includes: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define a decay change sequence to simulate the movement of the device under test between two access points; The data acquisition module is used to collect and record the test parameters of the device under test during roaming in real time. It can also read the currently connected AP information to determine whether the roaming is successful and make an indication for the next round of roaming cycle. It also includes a results analysis module for automatically generating roaming test reports, which include statistical charts of indicators such as test rounds, AP IP addresses, packet loss rate, peak traffic and valley traffic.

[0039] like Figure 1 As shown, the present invention also provides an automated testing system for dual 5G WIFI device roaming, used to execute the automated testing method for dual 5G WIFI device roaming described above, including: a test environment, a programmable attenuator array, a test control unit, a Layer 2 switch, and a streaming terminal.

[0040] The test environment deployed two access points (APs), forming an overlapping wireless signal coverage area between them. Both APs support protocols such as 802.11ax / ac and can be configured with different channels and power levels. During the test, the IP addresses of the two APs needed to be changed to be different. The wireless channels and bandwidths could be configured to be the same or different, but the SSID and encryption mode must remain consistent. By adjusting the placement of the APs, the dual 5G Wi-Fi client devices were positioned within their overlapping signal area. The programmable attenuator array consists of four digitally controlled attenuators, each supporting attenuation adjustment from 0 to 90 dB with an adjustment accuracy of ≤0.25 dB. It supports USB or TTL serial communication. Two of the digitally controlled attenuators are connected to the two 5G RF signals of one access point (AP), and the other two are connected to the two 5G RF signals of the other AP. Each digitally controlled attenuator is also connected to an antenna, and the device under test (DUT) communicates via this antenna.

[0041] The test control unit can be a PC1 running Windows, which communicates with four digital programmable attenuators and two access points via a TTL serial port. The test control unit is equipped with an automated test platform, which includes the following modules: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define attenuation change sequences (such as simulating a user moving while the signal strength of one AP increases and the signal strength of another AP decreases) to simulate the movement of the device under test between two APs; The data acquisition module is used to collect and record the test parameters of the device under test in real time during the roaming process, and supports packet capture analysis through TCPDUMP or Wireshark. It also includes a results analysis module for automatically generating roaming test reports, which include statistical charts of indicators such as test rounds, AP IP addresses, packet loss rate, peak traffic and valley traffic.

[0042] The chariot terminal can be PC2, which is connected to two APs through a Layer 2 switch, so that the test control unit and the chariot terminal can form a communication link and perform chariot charioting to enable bidirectional data transmission during roaming tests.

[0043] This invention, an automated roaming testing system for dual 5G Wi-Fi devices, precisely adjusts the two 5G radio signals of two access points (APs) using four high-precision digital programmable attenuators, achieving accurate simulation of dynamic signal changes in real roaming scenarios. Relying on an automated test control unit, it achieves unmanned operation throughout the entire process of attenuation adjustment, signal triggering, data acquisition, and report generation, significantly improving testing efficiency and result consistency. Targeting the dual-radio characteristics of dual 5G devices, it accurately matches their roaming thresholds and signal difference triggering logic, ensuring the test closely matches the actual operating mechanism of the devices. It simultaneously collects multi-dimensional performance parameters and performs automated analysis to comprehensively evaluate roaming performance. Furthermore, it possesses excellent compatibility and scalability, effectively solving problems such as low efficiency, poor accuracy, and insufficient comprehensiveness in traditional testing, providing reliable support for performance optimization of dual 5G Wi-Fi devices.

[0044] by Figure 3 The present invention will be further illustrated by an example. Figure 3 The diagram shown is a logical flowchart of the automated roaming test method for dual 5G WIFI devices executed in the automated roaming test system of the present invention. For ease of understanding, the two access points are defined as AP1 and AP2, and the two radio frequency modules of the device under test are defined as Radio0 and Radio1.

[0045] In the initial state, the Radio0 of the device under test is connected to AP1. The roaming threshold of the device under test is preset to -50dBm, and the signal difference is preset to 10dBm. PC1 and PC2 continuously stream bidirectionally through the Chariot tool, and the data acquisition module collects the information of the AP1 currently associated with the device under test in real time.

[0046] First, PC1 starts pinging PC2 and records the current time T1. PC1 then calls the attenuator control module to simulate a client device moving slowly away from AP1 and closer to AP2. The attenuator control module adjusts the attenuation value accordingly. AP1 CHO / CH1 adjustable attenuation value +; AP2 CHO / CH1 adjustable attenuation value -; The attenuation adjustment step is 1 dBm, and the adjustment interval is 1 second.

[0047] When the signal strength of AP1 connected to Radio0 (the client device under test) falls below -50dBm, Radio1 begins active scanning, and the attenuator control module continues to adjust the attenuation value according to the above mode. This continues until the signal strength of AP2 scanned by Radio1 is 10dBm higher than the signal strength of AP1 connected to Radio0. At this point, Radio1 and AP2 successfully connect, Radio0 disconnects from AP1, and roaming is successful. Information about changes in the currently associated APs of the device under test is collected in real time.

[0048] Next, PC1 stops pinging PC2, records the current time T2, exits the attenuator control module, calls the data acquisition module, and collects the IP address of the currently associated AP2, the time T2-T1, the number of ping packets sent, the number of ping packets lost, the highest and lowest traffic sent during the roaming period, the highest and lowest traffic received, and the test time.

[0049] Afterwards, PC1 starts pinging PC2, records the current time T1, exits the data acquisition module, and re-invokes the attenuator control module to simulate the client device moving rapidly away from AP2 and closer to AP1. The attenuator control module adjusts the attenuation value accordingly. AP1 CHO / CH1 adjustable attenuation value -; AP2 CHO / CH1 adjustable attenuation value +; The attenuation adjustment step is 2dBm, and the adjustment interval is 0.5s.

[0050] When the signal strength of AP2 connected to Radio1 of the client (i.e., the device under test) falls below -50dBm, Radio0 begins active scanning, and the attenuator control module continues to adjust the attenuation value according to the above mode. This continues until the signal strength of AP1 scanned by Radio0 is 10dBm higher than the signal strength of AP2 connected to Radio1. Radio0 and AP1 then successfully connect, Radio1 disconnects from AP2, and roaming is successful. Information about changes in the currently associated APs of the device under test is collected in real time.

[0051] Then, PC1 stops pinging PC2, records the current time T2, exits the attenuator control module, calls the data acquisition module, and collects the IP address of the currently associated AP1, the time T2-T1, the number of ping packets sent, the number of ping packets lost, the highest and lowest traffic sent during the roaming period, the highest and lowest traffic received, and the test time.

[0052] Finally, exit the data acquisition module and increment the test round count by 1. If the test round count is greater than or equal to the set stop round count, call the result analysis module to generate a roaming test report; otherwise, return to the initial state and continue with a new round of testing.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automated testing method for roaming dual 5G WIFI devices, characterized in that, Includes the following steps: S1, the device under test is deployed in the overlapping coverage area of ​​the wireless signals of two APs, and the device under test is configured with two radio frequency modules; S2, the test control unit controls the digital programmable attenuator to automatically adjust the wireless signal strength of the two APs respectively, simulating the signal strength change caused by the movement of the device under test between the two APs; S3, when the roaming threshold and the signal difference between the two frequencies set by the device under test are met, the device under test completes the roaming handover from one of the APs to the other AP; S4, collect and record the test parameters of the device under test during the roaming process in real time.

2. The automated testing method for roaming of dual 5G WIFI devices according to claim 1, characterized in that, In step S2, the 5G radio frequency signal strength of the two APs is adjusted by four digitally controlled attenuators. Each AP's 5G radio frequency signal is connected to two digitally controlled attenuators. The signal strength change of the device under test when it moves between the two APs is simulated by synchronously adjusting the attenuation value.

3. The automated testing method for roaming dual 5G WIFI devices according to claim 1, characterized in that, In step S2, the specific method for simulating the signal strength change caused by the movement of the device under test between the two APs is as follows: In the initial state, one of the radio frequency modules of the device under test is connected to one of the access points (APs). By increasing the attenuation value of the digital programmable attenuator corresponding to the AP, the signal strength is reduced. At the same time, by decreasing the attenuation value of the digital programmable attenuator corresponding to the other AP, the signal strength is increased, thereby simulating the movement of the device under test between the two APs.

4. The automated testing method for roaming of dual 5G WIFI devices according to claim 3, characterized in that, In step S3, the roaming threshold is a preset signal strength threshold value for the device under test. When the signal strength of the AP currently connected to the device under test is lower than the roaming threshold, another radio frequency module of the device under test starts to actively scan. When the signal strength of the other AP is detected to be higher than the signal strength of the currently connected AP and the signal difference is reached, the device under test is triggered to switch from the currently connected AP to the other AP.

5. The automated testing method for roaming of dual 5G WIFI devices according to claim 1, characterized in that, In step S2, the attenuation adjustment step and adjustment interval of the digital programmable attenuator are adjusted to control the rate of change of the signal strength, so as to simulate different moving speeds of the device under test.

6. The automated testing method for roaming of dual 5G WIFI devices according to claim 1, characterized in that, In step S4, a communication link is established between the two APs and the device under test. The streaming terminal cooperates with the test control unit to perform bidirectional data transmission to collect real-time test parameters of the device under test during roaming. The test parameters include roaming switching time, signal strength, connection rate, packet loss rate, peak traffic and valley traffic.

7. The automated testing method for roaming of dual 5G WIFI devices according to claim 1, characterized in that, The test control unit is communicatively connected to the AP and the digitally controlled attenuator. The test control unit is equipped with an automated test platform, which includes: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define a decay change sequence to simulate the movement of the device under test between two APs; The data acquisition module is used to collect and record the test parameters of the device under test during the roaming process in real time.

8. The automated testing method for roaming of dual 5G WIFI devices according to claim 1, characterized in that, It also includes S5, which repeats S2~S4 to achieve multiple rounds of testing and automatically generates a roaming test report; wherein, by reading the information of the currently connected AP, it determines whether the roaming is successful and makes an indication for the next round of roaming cycle.

9. An automated testing system for roaming dual 5G WIFI devices, characterized in that, The method for performing automated testing of dual 5G WIFI device roaming as described in any one of claims 1 to 8 includes: In the test environment, two access points (APs) are deployed, forming an overlapping wireless signal coverage area between the two APs. The programmable attenuator array consists of four digitally controlled attenuators, two of which are connected to the two 5G radio frequency signals of one of the APs, and the other two are connected to the two 5G radio frequency signals of the other AP. Each digitally controlled attenuator is also connected to an antenna. The test control unit is communicatively connected to the programmable attenuator array and the AP. The test control unit is equipped with an automated test platform, which includes: The attenuator control module is used to encapsulate the communication protocol of the digital programmable attenuator and to set the attenuation amount and attenuation change rate in batches. The roaming test module is used to define a decay change sequence to simulate the movement of the device under test between two APs; The data acquisition module is used to collect and record the test parameters of the device under test during the roaming process in real time; The results analysis module is used to automatically generate roaming test reports.

10. The automated testing system for dual 5G WIFI device roaming according to claim 9, characterized in that, It also includes a Layer 2 switch and a streaming terminal. The streaming terminal is connected to the two APs through the Layer 2 switch, so that the test control unit and the streaming terminal form a communication link for bidirectional data transmission during roaming testing.

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