Device and method for testing switching success rate of mobile communication network between cells

Abstract

The invention provides a device and a method for testing the switching success rate of a mobile communication network between cells. The device comprises a mobile terminal, a client and a testing device, accessing a cell radio frequency feeder line through a radio frequency interface of the testing device; the client sends a control instruction to the test device, and adjusts the signal power intensity of the cell mobile communication network; and the mobile terminal is connected with the testing device, feeds back a signal switching detection result to the testing device through the mobile terminal, and calculates the switching success rate of the mobile communication network. According to the invention, the problems of low efficiency and high cost of testing the switching success rate of the mobile network in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of network testing, and in particular to a device and method for testing the success rate of switching between mobile communication networks of cells. Background Art

[0002] At present, the test of mobile communication network switching between cells is to conduct road tests by connecting terminals in the actual communication network, which requires manual operation, takes a long time, and has low test efficiency. It cannot realize cell switching tests in multiple scenarios, and can only conduct cell switching tests in a single standard or a single scenario. The test is cumbersome, time-consuming and costly. At the same time, to test scenarios such as ping-pong effect and weak coverage, it is necessary to find corresponding locations or modify network parameters separately, which is cumbersome. Summary of the invention

[0003] The present invention provides a device and method for testing the success rate of mobile communication network switching between cells, which are used to solve the problems of low efficiency and high cost in the existing testing of the success rate of mobile network switching.

[0004] The present invention provides a device for testing the success rate of switching between mobile communication networks of cells, comprising: Mobile terminals, clients and test devices; Accessing the cell radio frequency feeder through the radio frequency interface of the test device; The client sends a control instruction to the test device to adjust the signal power strength of the cell mobile communication network; The mobile terminal is connected to the test device, and the signal switching detection result is fed back to the test device through the mobile terminal to calculate the success rate of the mobile communication network switching.

[0005] According to a device for testing the success rate of inter-cell mobile communication network handover provided by the present invention, the radio frequency attenuation unit of the testing device is provided with a plurality of radio frequency interfaces, each of which includes an input port and an output port; The input port is connected to the cell RF feeder to adjust the cell mobile communication signal field strength, and the adjusted cell mobile communication signal is output through the output port.

[0006] According to a device for testing the success rate of inter-cell mobile communication network switching provided by the present invention, the client is connected to the testing device and sends a control instruction to the control unit of the testing device; The control unit is connected to the radio frequency attenuation unit, and the control unit adjusts the power strength of the cell mobile communication signal on the radio frequency attenuation unit based on the control instruction.

[0007] According to a device for testing the success rate of switching of mobile communication networks between cells provided by the present invention, the mobile terminal is connected to the detection unit in the testing device, and the switching status of the mobile terminal activation set cells, detection set cells, monitoring set cells and cell mobile communication networks is detected through the monitoring unit, and the detection results are fed back to the control unit.

[0008] According to a device for testing the success rate of mobile communication network switching between cells provided by the present invention, the mobile terminal is also connected to a control unit in the testing device, and the control state of the mobile terminal is controlled by the control unit, so that the mobile terminal is in an idle state, a call state, a call initiating state or a data downloading state.

[0009] According to a device for testing the success rate of switching of mobile communication networks between cells provided by the present invention, a random access memory is also provided in the testing device, and the switching conditions of the mobile terminal activation set cells, detection set cells, monitoring set cells and cell mobile communication networks detected by the detection unit are stored through the random access memory.

[0010] According to a device for testing the success rate of switching between mobile communication networks of cells provided by the present invention, a random storage unit is further provided in the testing device, and the switching status of the mobile communication network of the cell is stored through the random storage unit.

[0011] According to a device for testing the success rate of switching between mobile communication networks in cells provided by the present invention, a read-only memory is also provided in the testing device, and the read-only memory is connected to a random access memory unit to obtain the switching status of the mobile communication network in the cell. An external device obtains the switching result of the mobile communication network in the cell by accessing the read-only memory.

[0012] According to a device for testing the success rate of inter-cell mobile communication network switching provided by the present invention, a power supply unit is also provided in the testing device, and power is supplied to all power-consuming units in the testing device through the power supply unit.

[0013] The present invention also provides a method for testing the success rate of inter-cell mobile communication network switching, comprising: Detecting the mobile terminal activation set cell, detection set cell and monitoring set cell information by the detection unit; Sending a control instruction through the client according to the detection result, and controlling the radio frequency attenuation unit to adjust the signal power strength of each cell based on the control instruction; When the signal strength of each cell reaches the terminal cell switching threshold, the cell of the mobile communication network connected to the mobile terminal is switched; The control unit controls the switching of the field strength of each cell while controlling the working state of the connected mobile terminal to put it in a call state, a data transmission state or an idle state, and tests the success rate of cell switching of the mobile terminal in different working states; Among them, for the soft switching of the CDMA communication system, it is set that there are two or more cells in the activation set, and the terminal performs cell switching by reducing the signal field strength of one or two cells at the same time, and the switching success rate of the cells is calculated; Test the success rate of cell switching under different standards, connect the test device to the cells of two mobile system base stations, and use the RF attenuation unit in the test device to attenuate and enhance the signal field strength of the two cells respectively, so as to complete the cell switching under different standard networks; By adjusting the attenuation of the RF attenuation unit, the cell switching of the mobile terminal in the case of weak coverage is simulated, and the attenuation of the cell signal is reduced at the same time, so that the signal strengths of the two cells are close and reach the field strength threshold of the terminal switching, and the switching under the cell ping-pong effect is performed; By configuring the neighboring cell relationship of each cell, the cell switching of the mobile terminal in the case of no neighboring cell relationship in multiple cells can be tested; The attenuation step of the RF attenuation unit is adjustable to complete cell switching tests in different scenarios.

[0014] The present invention provides a device and method for testing the success rate of mobile communication network switching between cells. The signal field strength of the base station cell is adjusted by a radio frequency attenuation unit to simulate the actual scenario in which the signal field strength decreases when the terminal moves away from the original cell and the signal increases when it approaches the target cell. The test of cell switching and the test of the success rate of switching are conveniently realized. The tester can control the control unit through the client to perform the cell switching test, which can realize the automated test of the success rate of cell switching, improve the test efficiency and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural diagram of a device for testing the success rate of switching between mobile communication networks of cells provided by the present invention.

[0017] Figure 2 It is a flow chart of a method for testing the success rate of switching between mobile communication networks of cells provided by the present invention.

[0018] Reference numerals: 100: testing device; 110: detection unit; 111: control unit; 113: random access memory; 114: random access memory unit; 120: read-only memory; 130: power supply unit; 140: radio frequency attenuation unit; 150: client; 160: mobile terminal. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Combine the following Figure 1 The present invention describes a device for testing the success rate of inter-cell mobile communication network switching, comprising: Mobile terminal 160, client 150 and testing device 100; Accessing the cell radio frequency feeder through the radio frequency interface of the test device 100; The client 150 sends a control instruction to the test device 100 to adjust the signal power strength of the cell mobile communication network; The mobile terminal 160 is connected to the test device 100 , and the signal switching detection result is fed back to the test device 100 through the mobile terminal 160 to calculate the success rate of the mobile communication network switching.

[0021] Specifically, the signal power of each cell is adjusted by the automatic adjustable attenuator of the test device 100 to achieve the change of the strength of the cell signal field strength under the road test environment, and the test of the cell switching success rate can be completed in the laboratory. The test device 100 can be connected to mobile terminals 160 of different standards, and cooperate with the corresponding base station cells to conveniently test the success rate of mobile communication cell switching under various standards. According to the configuration of the laboratory communication cell, by adjusting the signal field strength value and the rate of change of the field strength of different cells, it can be compatible with the switching of multiple cells or working standards, and can realize the switching success rate test in various scenarios such as cross-standard, no neighboring area relationship, interference, weak coverage, ping-pong effect, etc. The radio frequency signal attenuation unit can connect to multiple cells and control the signal field strength of each cell, so as to better simulate the switching test of the mobile terminal 160 under the actual multi-cell coverage. The cell switching success rate test in the idle state, call state, initiating a call or data downloading scenario can be realized by adjusting the working state of the mobile terminal 160. There is no need to change the configuration of the existing mobile network. The test can be performed by simply connecting the test device 100 to multiple cells of a mobile network through a radio frequency feeder. This does not affect the operation of the existing mobile network, and there is no need to adjust parameters on the network side. The test results are closer to actual usage scenarios.

[0022] The RF attenuation unit 140 of the test device 100 is provided with a plurality of RF interfaces, each of which includes an input port and an output port; The input port is connected to the cell RF feeder to adjust the cell mobile communication signal field strength, and the adjusted cell mobile communication signal is output through the output port.

[0023] In the present invention, the RF attenuation unit 140 is connected to the existing base station cell RF feeder, with an IN port for input and an OUT port for output. The RF attenuation unit 140 has more than two RF interfaces and supports the control of signal strengths of multiple cells.

[0024] The signal attenuation range of multiple (greater than 3) channels of the RF signal attenuation unit is adjustable between 0 and 110 dB, which can reach the cell switching threshold of the terminal; at the same time, the attenuation step level should be between 0.25 and 110 dB, and the attenuation step of the RF attenuation unit is adjustable, so that the attenuated signal can be quickly attenuated or enhanced, which can simulate the situation in which the wireless signal is blocked by buildings or trees and the signal is quickly attenuated or enhanced after refraction in actual conditions, which is closer to the actual signal coverage situation; at the same time, the attenuation or increase step rate of the signal field strength of each cell is controlled, and it is also used to realize the changes in the cell signal of the mobile terminal 160 in high-speed conditions such as stationary, walking, driving, and high-speed rail in actual conditions, and test the cell switching success rate of the terminal in various states, which is the same as the actual application scenario.

[0025] The test device 100 can connect to the signals of multiple (more than 3) cells to achieve continuous or alternating switching of multiple cells. For the GSM system, GSM-R system, and 400M digital modulation system, the cell switching adopts hard switching, that is, the connection with the original cell is interrupted first, and then the connection with the target cell is established. There is only one cell in the activation set of the terminal, and multi-cell coverage can be used to adjust the signal field strength of different cells in turn so that the terminal can continuously switch cells and calculate the success rate of cell switching. For the CDMA communication system, since it adopts soft switching, that is, there can be two or more cells in the activation set, the terminal can first establish a connection with the target cell, and then disconnect from the original cell to complete the cell switching. At this time, the single cell coverage method is used to test the success rate of its cell switching. Two cells are used. By adjusting the field strength of the cell, there is only one cell in the activation set, the signal field strength of the activation set cell is reduced, and the signal strength of the detection set cell is increased, so that the signal strength of the cell reaches the switching threshold of the terminal, the cell switching is completed, and the success rate of the switching is calculated.

[0026] In order to test the cell switching success rate more closely in the actual application environment, for the soft switching of the CDMA communication system, we can set up two or more cells in the activation set, and make the terminal perform cell switching by reducing the signal strength of one or two cells at the same time, so as to calculate the cell switching success rate.

[0027] The client 150 is connected to the test device 100 and sends a control instruction to the control unit 111 of the test device 100; The control unit 111 is connected to the radio frequency attenuation unit 140 , and the control unit 111 adjusts the power strength of the cell mobile communication signal on the radio frequency attenuation unit 140 based on the control instruction.

[0028] In the present invention, the client 150 sends a control instruction to the control unit 111, and sends an instruction to the control unit 111 according to the cell situation of the mobile terminal 160 detected by the detection unit 110. The control unit 111 controls the RF attenuation unit 140 to adjust the signal power strength of each cell, so that the signal field strength of the terminal activation concentrated cell decreases, and at the same time improves the signal strength of the detection set cell, so that the signal strength of each cell reaches the threshold of the cell switching of the mobile terminal 160, thereby realizing the switching of the mobile communication network connected to the cell of the mobile terminal 160.

[0029] In order to test the success rate of cell switching under different standards, the test device 100 can be connected to the cells of two mobile system base stations, and the adjustable attenuation unit in the test device 100 can be used to attenuate and enhance the signal field strength of the two cells respectively, thereby completing cell switching under different standard networks.

[0030] The mobile terminal 160 is connected to the detection unit 110 in the test device 100 , and the monitoring unit detects the switching of the activation set cells, detection set cells, monitoring set cells and cell mobile communication network of the mobile terminal 160 , and feeds back the detection results to the control unit 111 .

[0031] The mobile terminal 160 is also connected to the control unit 111 in the test device 100 , and the control state of the mobile terminal 160 is controlled by the control unit 111 , so that the mobile terminal 160 is in an idle state, a call state, a call initiating state or a data downloading state.

[0032] In the present invention, by controlling the state of the mobile terminal 160 by the control unit 111, various states that the mobile terminal 160 may face can be simulated, and the on / off status and call quality of the mobile terminal 160 can be tested, so as to facilitate the calculation of the switching success rate.

[0033] The control unit 111 controls the field strength switching of each cell and at the same time controls the working state of the connected mobile terminal 160 to put it in a call state, a data transmission state or an idle state. The success rate of the cell switching under different working states of the terminal can be tested, which is closer to the actual application scenario.

[0034] By adjusting the attenuation of the RF attenuation unit, the cell switching of the mobile terminal 160 under weak coverage can be simulated. At the same time, the attenuation of the cell signal can be reduced so that the signal field strengths of the two cells are similar and reach the field strength threshold of the terminal switching, and the switching under the cell ping-pong effect can be performed. By configuring the neighboring cell relationship of each cell, the cell switching of the mobile terminal 160 under the condition of no neighboring cell relationship in multiple cells can be tested. By configuring a certain cell without communication data and only sending RF signals at the corresponding frequency point, the success rate of the cell switching of the mobile terminal 160 in the presence of interference signals can be achieved.

[0035] Without adjusting the parameter configuration of the base station cell in the communication system, the signal power of each cell can be adjusted by the automatic adjustable attenuator of the test device 100 to achieve the change of the strength of the cell signal field strength in the road test environment, and the test of the cell switching success rate can be completed in the laboratory. The existing road test method for switching success rate testing requires personnel to drive a car under the coverage of a certain network and use a terminal to test. It is necessary to run through the coverage of most cells to test and count the switching success rate, which is time-consuming and laborious.

[0036] The test device 100 is also provided with a random access memory 113, through which the switching conditions of the activation set cells, detection set cells, monitoring set cells and the mobile communication network of the mobile terminal 160 detected by the detection unit 110 are stored. The test device 100 is also provided with a random access memory unit 114, through which the switching conditions of the mobile communication network of the cell are stored. The test device 100 is also provided with a read-only memory 120, which is connected to the random access memory unit 114 to obtain the switching conditions of the mobile communication network of the cell. The external device obtains the switching result of the mobile communication network of the cell by accessing the read-only memory 120.

[0037] In the present invention, after the external device establishes a connection relationship with the read-only memory 120, the switching status of the cell mobile communication network can be read, which is convenient for exporting and displaying the results.

[0038] The test device 100 is also provided with a power supply unit 130 , through which all power-consuming units in the test device 100 are supplied with power to meet the power demand of the test device 100 .

[0039] Among them, the test device 100 can conveniently test the success rate of mobile communication cell switching under various standards by connecting to mobile terminals 160 of different standards and cooperating with corresponding base station cells. The existing road test method can only use different road test vehicles in different networks to test the success rate of switching, which is labor-intensive and resource-intensive. By connecting cells of multiple different communication systems and adjusting the signal field strength values ​​and the rate of change of the field strength in different cells, it can be compatible with the switching of multiple cells or working standards, and can realize the switching success rate test in various scenarios such as cross-standard, no neighboring cell relationship, interference, weak coverage, signal obstruction, signal refraction, and ping-pong effect. It is more convenient, faster, and easier to operate than the existing road test method, and the existing road test method has a single scenario. For example, to simulate weak coverage or ping-pong effect, it is necessary to adjust the network parameter configuration, and the operation is cumbersome.

[0040] The RF signal attenuation unit can connect multiple cells and control the signal strength of each cell, so as to better simulate the handover test of the mobile terminal 160 under the actual multi-cell coverage. The existing drive test method has a single scenario, and the corresponding location must be actually found for testing.

[0041] The present invention also discloses a method for testing the success rate of switching between cell mobile communication networks, comprising: Detecting the activation set cell, detection set cell and monitoring set cell information of the mobile terminal 160 by the detection unit 110; According to the detection result, a control instruction is issued through the client 150, and based on the control instruction, the radio frequency attenuation unit 140 is controlled to adjust the signal power strength of each cell; When the signal strength of each cell reaches the terminal cell switching threshold, the cell of the mobile communication network to which the mobile terminal 160 is connected is switched; The control unit 111 controls the switching of the field strength of each cell and controls the working state of the connected mobile terminal 160 to put it in a call state, a data transmission state or an idle state, and tests the success rate of the cell switching under different working states of the mobile terminal 160.

[0042] Specifically, refer to Figure 2 , the three ports of the test device 100 are connected to the RF feeders of the three cells, the mobile terminal 160 and the test device 100 are turned on, and the client 150 is operated to send a test instruction; a signal strength attenuation instruction is sent to each cell to determine whether the cell switching of the mobile terminal 160 is successful. If the switching is unsuccessful, a failure message is returned and a switching failure F1 is recorded; if the switching is successful, the number of successful switchings N1 is recorded, and it is continued to be determined whether the call is dropped. If the call is dropped, a failure message is returned and a switching failure F2 is recorded. If the call is not dropped, the number of successes N2 is recorded, and the cell switching success rate is calculated based on F1, F2 and N2.

[0043] Among them, for the soft switching of the CDMA communication system, it is set that there are two or more cells in the activation set, and the terminal performs cell switching by reducing the signal field strength of one or two cells at the same time, and the switching success rate of the cells is calculated; To test the success rate of cell switching under different standards, the test device 100 is connected to the cells of two mobile system base stations, and the radio frequency attenuation unit 140 in the test device 100 is used to attenuate and enhance the signal field strength of the two cells respectively, so as to complete the cell switching under different standard networks; By adjusting the attenuation of the RF attenuation unit, the cell switching of the mobile terminal 160 in the case of weak coverage is simulated, and the attenuation of the cell signal is reduced at the same time, so that the field strengths of the two cell signals are close and reach the field strength threshold of the terminal switching, and the switching is performed under the cell ping-pong effect; By configuring the neighboring cell relationship of each cell, the cell switching of the mobile terminal 160 in the case of no neighboring cell relationship in multiple cells can be tested. By configuring a cell without communication data and only sending radio frequency signals at the corresponding frequency point, the success rate of the cell switching of the mobile terminal 160 in the case of interference signals can be achieved.

[0044] The test device 100 can connect to the signals of multiple (more than 3) cells to achieve continuous or alternating switching of multiple cells. For the GSM system, GSM-R system, and 400M digital modulation system, the cell switching adopts hard switching, that is, the connection with the original cell is interrupted first, and then the connection with the target cell is established. There is only one cell in the activation set of the terminal, and multi-cell coverage can be used to adjust the signal field strength of different cells in turn so that the terminal can continuously switch cells and calculate the success rate of cell switching. For the CDMA communication system, since it adopts soft switching, that is, there can be two or more cells in the activation set, the terminal can first establish a connection with the target cell, and then disconnect from the original cell to complete the cell switching. At this time, the single cell coverage method is used to test the success rate of its cell switching. Two cells are used. By adjusting the field strength of the cell, there is only one cell in the activation set, the signal field strength of the activation set cell is reduced, and the signal strength of the detection set cell is increased, so that the signal strength of the cell reaches the switching threshold of the terminal, the cell switching is completed, and the success rate of the switching is calculated.

[0045] Based on a method for testing the success rate of mobile communication network switching between cells provided by the present invention, the signal strength of the base station cell is adjusted by the radio frequency attenuation unit 140, simulating the actual scenario in which the signal strength decreases when the terminal moves away from the original cell and increases when it approaches the target cell, thereby conveniently realizing the test of cell switching and the test of the switching success rate. The tester can control the control unit 111 through the client 150 to perform the cell switching test, which can realize the automated test of the cell switching success rate, improve the test efficiency, and save costs.

[0046] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0047] Through the description of the above implementation methods, 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, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for testing the success rate of handover of an inter-cell mobile communication network, characterized in that: include: Mobile terminals, clients and test devices; Accessing the cell radio frequency feeder through the radio frequency interface of the test device; The client sends a control instruction to the test device to adjust the signal power strength of the cell mobile communication network; The mobile terminal is connected to the test device, and the signal switching detection result is fed back to the test device through the mobile terminal to calculate the success rate of the mobile communication network switching.

2. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The radio frequency attenuation unit of the test device is provided with a plurality of radio frequency interfaces, each radio frequency interface comprising an input port and an output port; The input port is connected to the cell RF feeder to adjust the cell mobile communication signal field strength, and the adjusted cell mobile communication signal is output through the output port.

3. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The client is connected to the test device and sends a control instruction to the control unit of the test device; The control unit is connected to the radio frequency attenuation unit, and the control unit adjusts the power strength of the cell mobile communication signal on the radio frequency attenuation unit based on the control instruction.

4. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The mobile terminal is connected to the detection unit in the test device, and the monitoring unit detects the switching status of the mobile terminal activation set cell, detection set cell, monitoring set cell and cell mobile communication network, and feeds back the detection results to the control unit.

5. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The mobile terminal is also connected to a control unit in the test device, and the control state of the mobile terminal is controlled by the control unit, so that the mobile terminal is in an idle state, a call state, a call initiating state or a data downloading state.

6. The device for testing the success rate of inter-cell mobile communication network handover according to claim 1, characterized in that: The test device is also provided with a random access memory, which stores the switching conditions of the mobile terminal activation set cells, detection set cells, monitoring set cells and cell mobile communication network detected by the detection unit.

7. The device for testing the success rate of inter-cell mobile communication network handover according to claim 1, characterized in that: The test device is also provided with a random storage unit, through which the switching situation of the cell mobile communication network is stored.

8. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The test device is also provided with a read-only memory, which is connected to the random access memory unit to obtain the switching status of the cell mobile communication network. The external device obtains the switching result of the cell mobile communication network by accessing the read-only memory.

9. The device for testing the success rate of inter-cell mobile communication network switching according to claim 1, characterized in that: The test device is also provided with a power supply unit, through which power is supplied to all power-consuming units in the test device.

10. A method for testing the success rate of inter-cell mobile communication network handover, characterized in that: include: Detecting the mobile terminal activation set cell, detection set cell and monitoring set cell information by the detection unit; Sending a control instruction through the client according to the detection result, and controlling the radio frequency attenuation unit to adjust the signal power strength of each cell based on the control instruction; When the signal strength of each cell reaches the terminal cell switching threshold, the cell of the mobile communication network connected to the mobile terminal is switched; The control unit controls the switching of the field strength of each cell while controlling the working state of the connected mobile terminal to put it in a call state, a data transmission state or an idle state, and tests the success rate of cell switching of the mobile terminal in different working states; Among them, for the soft switching of the CDMA communication system, it is set that there are two or more cells in the activation set, and the terminal performs cell switching by reducing the signal field strength of one or two cells at the same time, and the switching success rate of the cells is calculated; Test the success rate of cell switching under different standards, connect the test device to the cells of two mobile system base stations, and use the RF attenuation unit in the test device to attenuate and enhance the signal field strength of the two cells respectively, so as to complete the cell switching under different standard networks; By adjusting the attenuation of the RF attenuation unit, the cell switching of the mobile terminal in the case of weak coverage is simulated, and the attenuation of the cell signal is reduced at the same time, so that the signal strengths of the two cells are close and reach the field strength threshold of the terminal switching, and the switching under the cell ping-pong effect is performed; By configuring the neighboring cell relationship of each cell, test the cell switching of the mobile terminal in the case of no neighboring cell relationship in multiple cells; The attenuation step of the RF attenuation unit is adjustable to complete cell switching tests in different scenarios.

Images