Testing device and testing assembly

Abstract

The utility model discloses a testing device and a testing assembly, and relates to the technical field of signal testing. The communication equipment comprises a plurality of communication ends to be tested, and the test device comprises a communication test device which is provided with a plurality of test ends; the signal transmission assemblies are provided with test connection ends and communication connection ends; the plurality of signal transmission assemblies are electrically connected with one another; the communication connection ends or the test connection ends of the plurality of signal transmission assemblies are electrically connected with a plurality of to-be-tested communication ends or test ends in a one-to-one correspondence manner; the signal transmission assembly is used for outputting a test signal or a communication signal received by a test connection end or a communication connection end of the signal transmission assembly to a corresponding communication end or a test end to be tested through the communication connection end or the test connection end of the signal transmission assembly; and the signal is output to the corresponding test end and the to-be-tested communication end through other signal transmission assemblies. The utility model aims to improve the efficiency of the sensitivity test of the communication terminal of the communication equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to signal test technical field, especially relate to a test device and test assembly. BACKGROUND

[0002] At present, when the mobile phone and the notebook computer with the honeycomb module carry out high speed transmission, the interference may exist between multiple antennas, especially for the product such as ULCA (Uplink Carrier Aggregation), ENDC (Enchanced Multi-Radio Dual Connectivity) or ULMIMO (Uplink Multiple-Input Multiple-Output), when transmitting simultaneously, the distance between antennas is too close or there is TX (Transmitter) to RX (Receiver) interference in some combination, which affects the transmission rate.

[0003] In the prior art, in order to verify the IMD (InterModulation Distortion) self-interference between different ports in the to-be-tested device, the interference signal is usually filled into the interfered port through the power divider and the attenuation module in the conduction mode simulation test, the attenuation value is adjusted, the sensitivity of the antenna port of the to-be-tested device under different isolation degrees is tested, so that the interference of the port is verified, or the interference between the ports is verified through the non-signaling using the signal source and the spectrum analyzer in different paths. This results in that when the to-be-tested device itself has different interference types or different port sensitivities, different environments and wiring need to be built to realize accurate measurement. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a test device and test assembly, which aims to improve the efficiency of the communication device communication end sensitivity test.

[0005] In order to achieve the above purpose, the utility model provides a test device for testing communication equipment, the communication equipment includes a plurality of to-be-tested communication ends, and the test device includes:

[0006] The communication test device has a plurality of test ends;

[0007] a plurality of signal transmission components, the signal transmission components having test connection ends connected with test ends of the communication test device and communication connection ends for accessing to be tested communication ends; the plurality of signal transmission components being electrically connected with each other; the communication connection ends of the plurality of signal transmission components being electrically connected with the plurality of be tested communication ends one by one; the test connection ends of the plurality of signal transmission components being electrically connected with the plurality of test ends one by one;

[0008] The signal transmission component is configured to output a test signal received through the test connection end to a corresponding be tested communication end through the communication connection end, and output the test signal to corresponding test ends and be tested communication ends through other signal transmission components.

[0009] The signal transmission component is configured to output a test signal received through the test connection end to a corresponding be tested communication end through the communication connection end, and output the test signal to corresponding test ends and be tested communication ends through other signal transmission components.

[0010] In an embodiment, the signal transmission component comprises a communication connection end, a test connection end and a plurality of signal ends, and the signal ends are configured to be electrically connected with other signal transmission components.

[0011] In an embodiment, the communication device comprises N be tested communication ends, the communication test device has N test ends, the signal transmission component is provided with N signal transmission components, the signal transmission component has N-1 signal ends, and each signal transmission component is electrically connected with other signal transmission components through the signal ends.

[0012] In an embodiment, the number of the communication test devices is a plurality, and the sum of the number of test ends of the plurality of communication test devices is greater than or equal to N.

[0013] In an embodiment, an attenuation module is arranged in series in a path between any two signal transmission components, one end of the attenuation module is electrically connected with a signal end of one signal transmission component, and the other end of the attenuation module is electrically connected with a signal end of another signal transmission component.

[0014] In an embodiment, the signal transmission component comprises a power divider.

[0015] The utility model also proposes a test assembly, the test assembly includes: host computer and the test device of any preceding item;

[0016] The host computer is electrically connected with the test device and the communication device respectively, and is used for controlling the test device and / or the communication device.

[0017] In an embodiment, the host computer is connected with the communication test device by GPIB, and the host computer is connected with the communication device by USB.

[0018] The technical scheme of the utility model discloses a test device for testing the sensitivity of the communication end of a communication device, and the communication device comprises a plurality of communication ends to be tested, and the test device comprises a communication test device and a plurality of signal transmission assemblies. The communication test device has at least as many test ends as the number of the communication ends to be tested. The signal transmission assemblies have test connection ends connected with the test ends of the communication test device and communication connection ends for connecting the communication ends to be tested. The signal transmission assemblies are electrically connected with each other. The communication connection ends of the signal transmission assemblies are electrically connected with the communication ends to be tested one by one. The test connection ends of the signal transmission assemblies are electrically connected with the test ends one by one. The signal transmission assemblies output the test signals received by the test connection ends to the corresponding communication ends to be tested and to the corresponding test ends and the corresponding communication ends to be tested through other signal transmission assemblies. The signal transmission assemblies output the communication signals received by the communication connection ends to the corresponding test ends and to the corresponding test ends and the corresponding communication ends to be tested through other signal transmission assemblies.

[0019] In actual application, the test ends of the communication test device can be set according to actual use to correspond to the number of the communication ends to be tested of the communication device or to be greater than the number of the communication ends to be tested of the communication device. The number of the signal transmission assemblies needs to correspond to the number of the communication ends to be tested of the communication device so as to output the received communication signals and / or test signals to the communication ends to be tested of the communication device. The test connection ends of the signal transmission assemblies are electrically connected with the test ends of the communication test device, the communication connection ends of the signal transmission assemblies are electrically connected with the communication ends to be tested of the communication device, and the signal transmission assemblies are electrically connected with each other, so as to simulate the environment in which the signals are directly diffused and output through the antenna ports of the communication device, that is, the communication ends to be tested of the communication device can all receive the signals. The communication device and / or the communication ends to be tested also output another signal to confirm the sensitivity of the communication ends to be tested of the communication device under the condition of the interference signals. The different communication ends to be tested of the communication device can be tested through the setting of the communication test device, and the efficiency of the sensitivity test of the communication ends of the communication device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0021] Figure 1 It is a structural schematic view of the testing device of the present application;

[0022] Figure 2 It is a structural schematic view of an embodiment of the testing device of the present application;

[0023] Figure 3 It is a structural schematic view of an embodiment of the testing device of the present application;

[0024] Figure 4 It is a structural schematic view of the testing assembly of the present application.

[0025] Explanation of reference numerals:

[0026] 10, communication device; 20, communication testing device; 30, signal transmission assembly; 40, attenuation module.

[0027] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0031] Currently, when the communication equipment such as mobile phone and notebook computer with cellular module performs high-speed transmission, interference may exist among multiple antennas, especially for products supporting ULCA (Uplink Carrier Aggregation), ENDC (Enchanced Multi-Radio Dual Connectivity) or ULMIMO (Uplink Multiple-Input Multiple-Output), when transmitting simultaneously, the distance between antennas is too close or there is TX (Transmitter) to RX (Receiver) interference in some combinations, which affects the transmission rate.

[0032] In the prior art, in order to verify the IMD (InterModulation Distortion) self-interference between different ports in the to-be-tested device, the interference signal is usually injected into the interfered port through the power divider and the attenuation module in the conduction mode simulation test, the attenuation value is adjusted, the sensitivity of the antenna port of the to-be-tested device under different isolation degrees is tested, and then the interference of the port is verified, or the interference between the ports is verified through non-signaling using a signal source and a spectrum analyzer in different paths. This results in the need to build different environments and connections to achieve accurate measurement when the to-be-tested device itself has different interference types or different port sensitivities.

[0033] It can be understood that the communication device often has multiple communication ends. Among them, some communication devices have multiple communication ends, which are all dedicated transmitting ends or dedicated receiving ends, that is, some communication ends only perform sending communication signals, and some communication ends only perform receiving communication signals. Some communication devices have multiple communication ends, which are all bidirectional communication ends, which can be used as transmitting communication signals and receiving communication signals. The communication device can also be provided with dedicated transmitting ends, dedicated receiving ends and bidirectional communication ends at the same time. Therefore, in a communication device, there are often multiple ports that need to be tested. In addition, the communication device often supports receiving and / or sending multiple different communication signals, which leads to the fact that the communication interference types received by the communication ends in the communication device are various. Therefore, in the prior art, when the communication device needs to test multiple communication ends and multiple communication types, different test environments and connection lines need to be built.

[0034] Therefore, with reference to Figure 1 The utility model provides a test device for testing a communication device 10, the communication device 10 includes multiple communication ends to be tested, the test device includes:

[0035] A communication test device 20, the communication test device 20 has multiple test ends;

[0036] Multiple signal transmission components 30, the signal transmission component 30 has a test connection end connected with the test end of the communication test device 20 and a communication connection end for accessing the communication end to be tested, the multiple signal transmission components 30 are electrically connected with each other, the communication connection end of the multiple signal transmission components 30 is electrically connected with the multiple communication ends to be tested one by one, and the test connection end of the multiple signal transmission components 30 is electrically connected with the multiple test ends one by one;

[0037] The signal transmission component 30 is used for outputting the test signal received through the test connection end to the corresponding communication end to be tested through the communication connection end, and outputting the test signal to the corresponding test end and the corresponding communication end to be tested through other signal transmission components 30.

[0038] The signal transmission component 30 is used for outputting the test signal received through the test connection end to the corresponding communication end to be tested through the communication connection end, and outputting the test signal to the corresponding test end and the corresponding communication end to be tested through other signal transmission components 30.

[0039] In the embodiment, the communication testing device 20 can be implemented by a spectrum analyzer, a signal generator, a general-purpose measuring instrument, a radio frequency signal analyzer, etc. Take the spectrum analyzer as an example. The testing end of the spectrum analyzer is connected to the to-be-tested communication end of the communication device 10 through a radio frequency cable. The to-be-tested communication end can be a transmitting end, a receiving end, or a bidirectional communication end. Further, the parameters of the spectrum analyzer are configured, including the center frequency, the scanning width, the resolution bandwidth, the video bandwidth, etc., to adapt to the frequency range and characteristics of the to-be-tested signal. If a test signal needs to be injected, a signal source is connected to the receiving port of the communication device 10 through a radio frequency cable, and the frequency and power level of the signal source are set to realize the signal acquisition of the spectrum analyzer from the to-be-tested communication end in the communication device 10. The spectrum analyzer will display the acquired signal spectrum and provide various tools to analyze the signal characteristics, such as the signal strength, the frequency component, the modulation quality, etc. The engineers can evaluate the performance indicators of the to-be-tested communication end in the communication device 10, such as the signal purity, the interference level, the receiving sensitivity, etc., through the data provided by the spectrum analyzer. The number of testing ends of the communication testing device 20 can be greater than or equal to the number of to-be-tested communication ends in the communication device 10 according to the actual needs. For example, when different combinations of test signals are used for testing, the communication testing device 20 can output different test signals through different testing ends, or the testing ends greater than the to-be-tested communication ends in the communication device 10 can be connected to other devices to be tested. Therefore, the number of testing ends of the communication testing device 20 can be flexibly set according to the use requirements, but should not be less than the number of to-be-tested communication ends in the communication device 10.

[0040] In the embodiment, the signal transmission assembly 30 can be implemented by means of a power divider, a coupler, a switch matrix, a signal distributor, etc. The number of the signal transmission assemblies 30, the number of the test terminals in the test communication device 10, and the number of the communication terminals to be tested in the communication device 10 are correspondingly set, and the communication connection terminals of the plurality of signal transmission assemblies 30 are electrically connected to the plurality of communication terminals to be tested in the communication device 10, so as to facilitate the detection of different communication terminals to be tested in the communication device 10. It can be understood that, when a certain signal transmission assembly 30 receives a communication signal and / or a test signal, it needs to output the communication signal and / or the test signal received by it to the remaining signal transmission assemblies 30, so that the remaining signal transmission assemblies 30 can input the communication signal and / or the test signal to the remaining communication terminals to be tested in the communication device 10 and the remaining test terminals in the communication test device 20. Thus, when the communication device 10 actually outputs a communication signal through an antenna, the signal will be diffused and output, and received by a port having a receiving signal function. Taking three couplers as an example, the three couplers are respectively a first coupler, a second coupler, and a third coupler. The first coupler, the second coupler, and the third coupler each include a communication connection terminal, a test connection terminal, and a signal terminal. The communication connection terminal of the first coupler, the communication connection terminal of the second coupler, and the communication connection terminal of the third coupler are respectively electrically connected to the three communication terminals to be tested in the communication device 10, and the test connection terminal of the first coupler, the test connection terminal of the second coupler, and the test connection terminal of the third coupler are respectively electrically connected to the three test terminals in the communication test device 20. The first coupler, the second coupler, and the third coupler are electrically connected to each other through the signal terminals. For example, the first signal terminal of the first coupler is electrically connected to the first signal terminal of the second coupler, the second signal terminal of the first coupler is electrically connected to the first signal terminal of the third coupler, and the second signal terminal of the second coupler is electrically connected to the second signal terminal of the third coupler. Through this connection mode, the communication signal and / or the test signal received by any coupler can be output to any communication terminal to be tested and any test terminal. It can be understood that the communication device 10 and the communication test device 20 can both serve as a signal source. The signal output by the communication device 10 is defined as a communication signal, and the signal output by the test device is defined as a test signal. It should be understood that the communication signal and the test signal can be the same signal or different signals, which are only distinguished in terms of output paths.

[0041] For the boundary noise interference in the communication device 10, it is mainly the interference of the transmission signal of the primary component carrier (PCC) to the reception signal of the adjacent frequency. In the carrier aggregation (CA) technology, the PCC is the carrier designated as the main carrier of the control information, which is usually used to transmit the control plane information and the user plane information. In the scenario of downlink carrier aggregation (DL CA), for example, DL CA_1A-3A, it means that the device supports the aggregation of multiple downlink carriers. B1 and B3 are signals of two different frequency bands, B1 is designated as the primary carrier (PCC), and B3 is the secondary carrier (SCC). When the transmission signal of B1 interferes with the reception signal of B3, this case is called boundary noise interference. This is because the frequency of the transmission signal of B1 is close to the frequency of the reception signal of B3, and when the transmission signal of B1 is transmitted, the signal at the edge of the transmission signal of B1 may penetrate into the reception frequency band of B3, thereby affecting the reception performance of B3. Among them, the three to-be-tested communication ends of the communication device 10 are respectively a first to-be-tested communication end, a second to-be-tested communication end, and a third to-be-tested communication end; the three test ends of the communication test device 20 are respectively a first test end, a second test end, and a third test end. The transmission signal of B1 is emitted from the first to-be-tested communication end, input to the communication connection end of the first coupler, and then output to the test end of the test device, and the reception signal of B1 is input to the first to-be-tested communication end of the communication device 10 through the same path. If it is necessary to test the SISO sensitivity of the first to-be-tested communication end of B3, the reception signal of B3 is emitted from the first test end of the communication test device 20, input to the first to-be-tested communication end of the communication device 10 through the first coupler, and then the sensitivity of the first to-be-tested communication end of the communication device 10 is measured. If it is necessary to test the SISO sensitivity of the second to-be-tested communication end of B3, the reception signal of B3 is emitted from the second test end of the communication test device 20, input to the second to-be-tested communication end of the communication device 10 through the first coupler, and then the sensitivity of the second to-be-tested communication end of the communication device 10 is measured. Among them, B1 and B3 are communication signals and / or test signals.

[0042] In the embodiment, the test terminals of the communication testing device 20 can be set according to actual use to correspond to the number of the communication terminals of the communication device 10 to be tested or to be greater than the number of the communication terminals of the communication device 10 to be tested. The number of the signal transmission assemblies 30 needs to correspond to the number of the communication terminals of the communication device 10 to be tested so as to output the received communication signals and / or test signals to the communication terminals of the communication device 10 to be tested. By respectively electrically connecting the test terminals of the plurality of signal transmission assemblies 30 with the test terminals of the communication testing device 20, respectively electrically connecting the communication terminals of the plurality of signal transmission assemblies 30 with the communication terminals of the communication device 10 to be tested, and electrically connecting each of the signal transmission assemblies 30 with each other, the environment that the signal directly spreads through the antenna ports of the communication device 10 is simulated, i.e. each of the communication terminals of the communication device 10 to be tested can receive the signal. The communication device 10 and / or the communication terminals to be tested further output another signal to confirm the sensitivity of the communication terminals of the communication device 10 to be tested under the condition of the group of interference signals. Further through the setting of the communication testing device 20, the different communication terminals of the communication device 10 to be tested can be realized, and the efficiency of the sensitivity test of the communication terminals of the communication device 10 is effectively improved.

[0043] Optionally, the number of to-be-tested communication ports of the communication device 10 is greater than two, while the communication testing device 20 only has two testing ports. Therefore, two signal transmission assemblies 30 are correspondingly arranged, and the testing ports of the two signal transmission assemblies 30 are respectively and correspondingly electrically connected with the two testing ports. Further, the two communication connection ports of the two signal transmission assemblies 30 are respectively connected to the two to-be-tested communication ports in the communication device 10. Among the two to-be-tested communication ports, one is a to-be-tested communication port that has been tested, and the other is a to-be-tested communication port that needs to be tested. For example, the communication device 10 includes four to-be-tested communication ports, which are a first to-be-tested communication port, a second to-be-tested communication port, a third to-be-tested communication port, and a fourth to-be-tested communication port. First, the first to-be-tested communication port and the second to-be-tested communication port are respectively electrically connected with the communication connection ports of the signal transmission assemblies 30. Before this, the testing connection ports of the two signal transmission assemblies 30 are electrically connected with the two testing ports of the communication testing device 20. By controlling the communication device 10 and / or the communication testing device 20 to output a communication signal and / or a testing signal to the first to-be-tested communication port, the communication testing device 20 can first obtain the sensitivity of the first to-be-tested communication port. Similarly, the sensitivity of the second to-be-tested communication port can be obtained by testing. When the third to-be-tested communication port and the fourth to-be-tested communication port are further tested, the connection relationship between the signal transmission assemblies 30 and the to-be-tested ports needs to be manually adjusted. For example, the third to-be-tested communication port and the fourth to-be-tested communication port are electrically connected with the communication connection ports of the signal transmission assemblies 30; the first to-be-tested communication port and the third to-be-tested communication port are electrically connected with the communication connection ports of the signal transmission assemblies 30; and the first to-be-tested communication port and the fourth to-be-tested communication port are electrically connected with the communication connection ports of the signal transmission assemblies 30. Thus, when the number of testing ports of the communication testing device 20 and the number of signal transmission assemblies 30 are limited, the multiple to-be-tested communication ports in the communication device 10 can be tested.

[0044] Reference Figure 1 and Figure 2 In an embodiment of the utility model, the signal transmission assembly 20 includes a communication connection port, a testing connection port, and multiple signal ports, and the signal ports are used to be electrically connected with other signal transmission assemblies 20.

[0045] Optionally, the signal transmission assembly includes a power divider.

[0046] In the embodiment, the plurality of signal transmission components 30 are all realized by power dividers. Among them, the communication connection end, the test connection end and the plurality of signal ends can all be signal input ends and signal output ends, depending on whether the signal is output by the communication device 10, the communication test device 20 or other signal transmission components 30. As a kind of passive device for dividing input signal energy into two or more equal or unequal output signals, the power divider can effectively distribute the communication signals output by different to-be-tested communication ends in the communication device 10 to other to-be-tested communication ends, so as to simulate the interference condition in actual work.

[0047] Further, an attenuation module 40 is arranged in series in the passage between any two signal transmission components 20, one end of the attenuation module 40 is electrically connected with the signal end of one signal transmission component 20, and the other end is electrically connected with the signal end of another signal transmission component 20.

[0048] It should be understood that the signal transmission component can distribute the input signal to multiple ends. However, in actual application, the signal strength of each end may need to be different. Therefore, by arranging the attenuation module 40, the signal strength of each end can be accurately controlled, and the balance of the signal between the ends can be ensured. In addition, if the signal strength after distribution by the signal transmission component is too high, it may cause the receiving device (such as a spectrum analyzer, a receiver, etc.) to be overloaded. Overloading will cause the receiving device to be unable to correctly process the signal, thereby affecting the accuracy of the test result. By arranging the attenuation module 40, the signal strength can be reduced to a range that can be processed by the receiving device, preventing the occurrence of the overloading phenomenon. Further, in the test process, it is often necessary to simulate the signal strength and interference condition in the actual working environment. In the actual environment, the signal may experience different degrees of attenuation during transmission. By arranging the attenuation module 40, these attenuation conditions can be simulated, so that the performance of the device in actual use can be more truly reflected. Therefore, the arrangement of the attenuation module 40 effectively improves the accuracy of the test and protects the safety of the device during the test.

[0049] Reference Figure 2 In the embodiment, the communication device 10 includes N to-be-tested communication ends, the communication test device 20 has N test ends, the signal transmission component 30 is arranged with N, the signal transmission component 30 has N-1 signal ends, and each signal transmission component 30 is electrically connected with each other through the signal end; the communication connection end of the N signal transmission components 30 is electrically connected with the N to-be-tested communication ends one by one, and the test connection end of the N signal transmission components 30 is electrically connected with the N test ends one by one.

[0050] In the embodiment, the communication device 10 includes four to-be-tested communication ends. The four to-be-tested communication ends of the communication device 10 are respectively a first to-be-tested communication end, a second to-be-tested communication end, a third to-be-tested communication end and a fourth to-be-tested communication end. The corresponding communication test device 20 has four test ends, which are respectively a first test end, a second test end, a third test end and a fourth test end. The signal transmission assembly 30 takes a power divider as an example, and the number of the power dividers corresponds to four, which are respectively a first power divider, a second power divider, a third power divider and a fourth power divider. The signal transmission assembly has three signal ends, which are respectively a first signal end, a second signal end and a third signal end. The first to-be-tested communication end is electrically connected with the communication connection end of the first power divider, the second to-be-tested communication end is electrically connected with the communication connection end of the second power divider, the third to-be-tested communication end is electrically connected with the communication connection end of the third power divider, and the fourth to-be-tested communication end is electrically connected with the communication connection end of the fourth power divider. The first test end is electrically connected with the test connection end of the first power divider, the second test end is electrically connected with the test connection end of the second power divider, the third test end is electrically connected with the test connection end of the third power divider, and the fourth test end is electrically connected with the test connection end of the fourth power divider. The first signal end of the first power divider is electrically connected with the first signal end of the second power divider, the second signal end of the first power divider is electrically connected with the first signal end of the third power divider, and the third signal end of the first power divider is electrically connected with the first signal end of the fourth power divider. The second signal end of the second power divider is electrically connected with the second signal end of the third power divider, and the third signal end of the second power divider is electrically connected with the second signal end of the fourth power divider. The third signal end of the third power divider is electrically connected with the third signal end of the fourth power divider. In the scenario of downlink carrier aggregation, for example, DL CA_1A-3A, it means that the device supports the aggregation of multiple downlink carriers. B1 and B3 are signals of two different frequency bands, B1 is designated as the primary carrier, and B3 is the secondary carrier. When the transmission signal of B1 interferes with the reception signal of B3, this situation is called boundary noise interference. This is because the frequency of the transmission signal of B1 is close to the frequency of the reception signal of B3, and when the transmission signal of B1 is transmitted, the signal at the edge of the transmission signal of B1 may penetrate into the reception frequency band of B3, thereby affecting the reception performance of B3. The transmission signal of B1 is output from the first to-be-tested communication end to the communication connection end of the first power divider, and then output to the test end of the test device through the test connection end. The reception signal of B1 is output from the test end to the first to-be-tested communication end of the communication device 10 in the same path. If it is necessary to test the SISO sensitivity of the first to-be-tested communication end of B3, the reception signal of B3 is output from the first test end of the communication test device 20 to the first to-be-tested communication end of the communication device 10 through the first power divider, and then the sensitivity of the first to-be-tested communication end of the communication device 10 is measured.If the B3 second to-be-tested communication end SISO sensitivity needs to be tested, the receiving signal of the B3 is sent from the second test end of the communication test device 20, input to the second to-be-tested communication end of the communication device 10 through the first power divider, and then the sensitivity of the second to-be-tested communication end of the communication device 10 is measured.

[0051] Reference Figure 3 In an embodiment of the utility model, the number of the communication test devices 20 is multiple.

[0052] In the embodiment, the number of the communication test devices 20 can be more than one. In the case that the communication device 10 has more test ends than a single communication test device 20, multiple communication test devices 20 can be used for testing, so that each port can be comprehensively tested in the testing of the to-be-tested communication of the communication device 10.

[0053] Optionally, the communication device 10 includes eight to-be-tested communication ends, and the communication test device 20 is three. The communication device 10 includes a first to-be-tested communication end, a second to-be-tested communication end, a third to-be-tested communication end, a fourth to-be-tested communication end, a fifth to-be-tested communication end, a sixth to-be-tested communication end, a seventh to-be-tested communication end, and an eighth to-be-tested communication end. The communication test device 20 includes a first communication test device, a second communication test device, and a third communication test device. The first communication test device includes a first test end, a second test end, a third test end, and a fourth test end. The second communication test device includes a first test end and a second test end. The third communication test device includes a first test end and a second test end. The power divider includes a first power divider, a second power divider, a third power divider, a fourth power divider, a fifth power divider, a sixth power divider, a seventh power divider, and an eighth power divider. Each power divider includes a first signal end, a second signal end, a third signal end, a fourth signal end, a fifth signal end, a sixth signal end, and a seventh signal end.

[0054] The first to be tested communication end is electrically connected with the communication connection end of the first power divider, the second to be tested communication end is electrically connected with the communication connection end of the second power divider, the third to be tested communication end is electrically connected with the communication connection end of the third power divider, the fourth to be tested communication end is electrically connected with the communication connection end of the fourth power divider, the fifth to be tested communication end is electrically connected with the communication connection end of the fifth power divider, the sixth to be tested communication end is electrically connected with the communication connection end of the sixth power divider, the seventh to be tested communication end is electrically connected with the communication connection end of the seventh power divider, and the eighth to be tested communication end is electrically connected with the communication connection end of the eighth power divider; the first test end of the first communication test device is electrically connected with the test connection end of the first power divider, the second test end of the first communication test device is electrically connected with the communication connection end of the second power divider, the third test end of the first communication test device is electrically connected with the communication connection end of the third power divider, and the fourth test end of the first communication test device is electrically connected with the communication connection end of the fourth power divider; the first test end of the second communication test device is electrically connected with the communication connection end of the fifth power divider, and the second test end of the second communication test device is electrically connected with the communication connection end of the sixth power divider; the first test end of the third communication test device is electrically connected with the communication connection end of the seventh power divider, and the second test end of the third communication test device is electrically connected with the communication connection end of the eighth power divider; the first signal end of the first power divider is electrically connected with the first signal end of the second power divider, the second signal end of the first power divider is electrically connected with the first signal end of the third power divider, the third signal end of the first power divider is electrically connected with the first signal end of the fourth power divider, the fourth signal end of the first power divider is electrically connected with the first signal end of the fifth power divider, the fifth signal end of the first power divider is electrically connected with the first signal end of the sixth power divider, the sixth signal end of the first power divider is electrically connected with the first signal end of the seventh power divider, and the seventh signal end of the first power divider is electrically connected with the first signal end of the eighth power divider; the second signal end of the second power divider is electrically connected with the second signal end of the third power divider, the third signal end of the second power divider is electrically connected with the second signal end of the fourth power divider, the fourth signal end of the second power divider is electrically connected with the second signal end of the fifth power divider, the fifth signal end of the second power divider is electrically connected with the second signal end of the sixth power divider, the sixth signal end of the second power divider is electrically connected with the second signal end of the seventh power divider, and the seventh signal end of the second power divider is electrically connected with the second signal end of the eighth power divider; the third signal end of the third power divider is electrically connected with the third signal end of the fourth power divider, the fourth signal end of the third power divider is electrically connected with the fourth signal end of the fifth power divider, the fifth signal end of the third power divider is electrically connected with the third signal end of the sixth power divider, the sixth signal end of the third power divider is electrically connected with the third signal end of the seventh power divider, and the seventh signal end of the third power divider is electrically connected with the third signal end of the eighth power divider.The fourth signal end of the fourth power divider is electrically connected with the fourth signal end of the fifth power divider, the fifth signal end of the fourth power divider is electrically connected with the fifth signal end of the sixth power divider, the sixth signal end of the fourth power divider is electrically connected with the sixth signal end of the seventh power divider, and the seventh signal end of the fourth power divider is electrically connected with the seventh signal end of the eighth power divider; the fifth signal end of the fifth power divider is electrically connected with the fifth signal end of the sixth power divider, the sixth signal end of the fifth power divider is electrically connected with the fifth signal end of the seventh power divider, and the seventh signal end of the fifth power divider is electrically connected with the fifth signal end of the eighth power divider; the sixth signal end of the sixth power divider is electrically connected with the sixth signal end of the seventh power divider, and the seventh signal end of the sixth power divider is electrically connected with the sixth signal end of the eighth power divider; and the seventh signal end of the seventh power divider is electrically connected with the seventh signal end of the eighth power divider. In the scenario of downlink carrier aggregation, for example, DL CA_1A-3A, it means that the device supports the aggregation of multiple downlink carriers. B1 and B3 are signals of two different frequency bands, B1 is designated as the primary carrier, and B3 is the secondary carrier. When the transmission signal of B1 interferes with the reception signal of B3, this situation is called boundary noise interference. This is because the transmission signal frequency of B1 is close to the reception signal frequency of B3, and when the B1 transmission signal is transmitted, the signal at the edge of the B1 transmission signal may penetrate into the reception frequency band of B3, thereby affecting the reception performance of B3. The transmission signal of B1 is output from the first to-be-tested communication end of the communication device 10, input to the communication connection end of the first power divider, and then output to the test end of the test device through the test connection end. The reception signal of B1 is output from the test end to the first to-be-tested communication end of the communication device 10 in the same path. If it is necessary to test the SISO sensitivity of the first to-be-tested communication end of B3, the reception signal of B3 is output from the first test end of the communication test device 20 to the first to-be-tested communication end of the communication device 10 through the first power divider, and then the sensitivity of the first to-be-tested communication end of the communication device 10 is measured. If it is necessary to test the SISO sensitivity of the second to-be-tested communication end of B3, the reception signal of B3 is output from the second test end of the communication test device 20 to the second to-be-tested communication end of the communication device 10 through the first power divider, and then the sensitivity of the second to-be-tested communication end of the communication device 10 is measured.

[0055] The utility model also proposes a test assembly, test assembly includes: host computer and like any one of the test device, wherein, host computer with test device and communication device 10 respectively electric connection, and be used for controlling test device work and / or communication device 10 work.

[0056] It is worth noting that, since the test assembly of the utility model is based on the test device described above, the embodiments of the test assembly of the utility model include all the technical solutions of all the embodiments of the test device described above, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0057] ReferenceFigure 4 In an embodiment of the present application, the host computer and the communication testing device 20 are connected by GPIB, and the host computer and the communication device 10 are connected by USB.

[0058] In the embodiment, the communication testing device 20 is connected with the host computer to realize the process of automatically testing each communication terminal under the control of the host computer, and the test results are fed back to the host computer. The host computer and the communication testing device 20 are connected by GPIB to meet the testing environment of standardization, remote control and multi-device support, especially in the case of high-precision control and complex testing sequence. The communication device 10 and the host computer are connected by USB to meet the convenient, plug-and-play data exchange and control between the host computer and the communication device 10, especially in the case of not requiring particularly high transmission speed and control accuracy.

[0059] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, or the contents of the present application are included in the patent protection range of the present application.

Claims

1. A testing device for testing communication equipment, characterized in that: The communication device includes a plurality of communication terminals to be tested, and the testing device includes: A communication test device, wherein the communication test device has a plurality of test terminals; A plurality of signal transmission components, each having a test connection end connected to the test end of the communication test device and a communication connection end for accessing the communication end to be tested; the plurality of signal transmission components are electrically connected to each other; the communication connection ends of the plurality of signal transmission components are electrically connected to the plurality of communication ends to be tested in a one-to-one correspondence; the test connection ends of the plurality of signal transmission components are electrically connected to the plurality of test ends in a one-to-one correspondence; The signal transmission component is configured to output the test signal received via its own test connection terminal to the corresponding communication terminal to be tested via its own communication connection terminal; and output the test signal to the corresponding test terminal and the communication terminal to be tested via other signal transmission components; The signal transmission component is used to output the communication signal received through its own communication connection end to the corresponding test end through its own test connection end; and output it to the corresponding test end and the communication end to be tested through other signal transmission components.

2. The testing device according to claim 1, wherein: The signal transmission component includes: a communication connection terminal, a test connection terminal and a plurality of signal terminals; the signal terminals are used for electrical connection with other signal transmission components.

3. The testing device according to claim 2, wherein: The communication equipment includes N communication terminals to be tested, the communication test device has N test terminals, the signal transmission components are provided with N, the signal transmission components have N-1 signal terminals, and the signal transmission components are electrically connected to each other via the signal terminals; the communication connection terminals of the N signal transmission components are respectively electrically connected one-to-one with the N communication terminals to be tested, and the test connection terminals of the N signal transmission components are respectively electrically connected one-to-one with the N test terminals.

4. The testing device according to any one of claims 1 to 3, wherein: There are multiple communication test devices, and the total number of test terminals of the multiple communication test devices is greater than or equal to N.

5. The testing device according to claim 2, wherein: An attenuation module is arranged in series in the path between any two of the signal transmission components, one end of the attenuation module is electrically connected to the signal end of one of the signal transmission components, and the other end is electrically connected to the signal end of the other signal transmission component.

6. The testing device according to claim 1, wherein: The signal transmission component includes a power divider.

7. A test assembly, characterized in that: The test assembly comprises: a host computer and a test device according to any one of claims 1 to 6; The host computer is electrically connected to the test device and the communication equipment respectively, and is used to control the operation of the test device and / or the communication equipment.

8. The test assembly according to claim 7, wherein: The host computer is connected to the communication test device using GPIB, and the host computer is connected to the communication device using USB.

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