A universal network device radio frequency test system and method

Abstract

The present specification relates to a universal network equipment radio frequency test system and method, the system comprising: a signal source port, a plurality of input ports, a coupling unit, a signal processing unit and a control unit; wherein the control unit comprises a plurality of digital switches, the coupling unit comprises a plurality of couplers, and the signal processing unit comprises at least a filter or an attenuator; the signal source port is used to receive signals emitted by a signal source, and the signal source port is connected to the input ports through the control unit and the coupling unit; the coupling unit is used to couple and transmit signals received by at least one signal source port to at least one input port; the control unit is used to switch the connection lines of the signal source port, the coupling unit, the signal processing unit and the input ports in response to a control instruction; and the plurality of input ports are used to send signals emitted by the signal source to a device under test connected to the system. The present application saves cost, reasonably utilizes resources, and improves the reusability and maintainability of test work.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of finance, and particularly, to a universal network device radio frequency test system and method. BACKGROUND

[0002] In recent years, with the rapid growth of mobile services, the communication industry has developed rapidly. In order to solve the problem of mobile network coverage, various network devices such as base stations, repeaters, satellite earth stations and the like are constantly updated and replaced, resulting in an increasing workload of testing devices. The radio frequency test work of such network devices involves many steps and is highly comprehensive. Traditional testing is usually manual testing or testing with an interface box that has the function of testing a single network device. Such an interface box has a single function and is limited, lacking flexibility and being unable to meet the needs of radio frequency test scenarios for various network devices, resulting in waste of resources and unreasonable use to some extent.

[0003] The communication tester connects the external radio frequency interface of the interface box with a single test scenario to the test instrument using a radio frequency cable, and then sends instructions to the interface box through a control PC to switch the internal test circuit, form a path that meets the test requirements, and finally perform related radio frequency tests.

[0004] Since the interface box only has a single test scenario, it has great limitations and lacks flexibility, and cannot meet other test requirements. The radio frequency cable connected to the external radio frequency interface of the interface box needs to be removed when there is a need for other tests, resulting in different radio frequency cables used each time the interface box is used, which is prone to loose and damaged interfaces, increases the uncertainty of the radio frequency cable standing wave ratio and insertion loss, and affects the accuracy and reproducibility of the test results. It does not have a reverse signal detection function, and is prone to test hazards such as the measured device mistakenly inputting high-power radio frequency signals in the reverse direction to the signal source, resulting in damage to the instrument. Therefore, the shortcomings of the prior art solution are that the test scenario is single, causing waste of resources, and there are test hazards and uncertainty of radio frequency cable parameters in the operation process that interfere with the test results. SUMMARY

[0005] To solve the problem of single test scenario and resource waste in the prior art, the embodiments of the present specification provide a universal network device radio frequency test system and method.

[0006] The embodiment of the present specification provides a general network equipment radio frequency test system, and the method comprises the following steps: the system comprises a signal source port, a plurality of input ports, a coupling unit, a signal processing unit and a control unit; wherein the control unit comprises a plurality of digital switchers, the coupling unit comprises a plurality of couplers, and the signal processing unit at least comprises a filter or an attenuator; the signal source port is used for receiving signals emitted by a signal source, and the signal source port is connected with the input port through the control unit and the coupling unit; the coupling unit is used for coupling and transmitting the signals received by at least one signal source port to at least one input port; the control unit is used for switching the connection lines of the signal source port, the coupling unit, the signal processing unit and the input port in response to a control instruction; and the plurality of input ports are used for transmitting the signals emitted by the signal source to a device under test connected with the system.

[0007] According to an aspect of the embodiment of the present specification, the signal source port comprises a double-channel signal source port, a first single-channel signal source port and a second single-channel signal source port, the control unit comprises a first control unit and a second control unit; the first control unit is used for switching the connection lines of the signal source port and the coupling unit and the connection lines of the signal processing unit or the second control unit and the input port in response to a first control instruction; and the second control unit is used for switching the connection lines of the coupling unit and the signal processing unit in response to a second control instruction.

[0008] According to an aspect of the embodiment of the present specification, the signal processing unit comprises a band-stop filter port, a first attenuator port and a second attenuator port, the second control unit comprises a fifth digital switcher, a sixth digital switcher, a seventh digital switcher, an eighth digital switcher, a ninth digital switcher and a tenth digital switcher; one side of the band-stop filter port is connected with the tenth digital switcher, and the other side is connected with the first attenuator port through the ninth digital switcher, and the band-stop filter port is used for filtering the downlink signals output by the device under test; the two ends of the second attenuator port are respectively connected with the sixth digital switcher and the seventh digital switcher, and the second attenuator port is used for attenuating the downlink signals emitted by the device under test to the system through the input port or the uplink signals emitted by the signal source port to the system.

[0009] According to an aspect of the embodiments of the present specification, the dual-channel signal source port comprises a dual-channel signal source first port and a dual-channel signal source second port; the first control unit comprises an eleventh digital switch, a twelfth digital switch and a thirteenth digital switch; one end of the twelfth digital switch is connected with the dual-channel signal source first port; the other end of the twelfth digital switch is connected with one end of the eighth digital switch, the second coupler and the third coupler respectively; one end of the thirteenth digital switch is connected with the dual-channel signal source second port; the other end of the thirteenth digital switch is connected with the second coupler, the fourth coupler and the fifth coupler respectively; and the fourth coupler is connected with the third coupler.

[0010] According to an aspect of the embodiments of the present specification, the system further comprises: one end of the eighth digital switch is connected with the first coupler, the second coupler, the third coupler, the fifth coupler and one end of the twelfth digital switch respectively; the other end of the eighth digital switch is connected with one end of the seventh digital switch; the sixth digital switch is connected in parallel with the seventh digital switch through a second attenuator and a wire; the other end of the sixth digital switch is connected with the fifth digital switch; the ninth digital switch is connected with the tenth digital switch through a band-stop filter; and the other end of the first attenuator is connected with the fifth digital switch.

[0011] According to an aspect of the embodiments of the present specification, one end of the fourth digital switch is connected with the fifth digital switch, and the other end is connected with the first digital switch, the second digital switch and the third digital switch respectively; the first digital switch, the second digital switch and the third digital switch are connected with the first input port, the second input port and the third input port respectively.

[0012] According to an aspect of the embodiments of the present specification, the system further comprises: a spectrum analyzer port and a repeater interface, the repeater interface is connected with a measured repeater, and an output end of the measured repeater is connected with the spectrum analyzer port.

[0013] According to an aspect of the embodiments of the present specification, the first single-channel signal source port is connected with the fifth coupler, and the second single-channel signal source port is connected with the fourth coupler.

[0014] According to an aspect of the embodiment of the present specification, a signal source port is selected to determine a radio frequency signal; a first control unit is controlled according to a first control instruction, so that part of the digital switch in the first control unit is closed to realize the connection of the part of the digital switch with the coupling unit and the signal source port; a second control unit is controlled according to a second control instruction, so that part of the digital switch in the second control unit is closed to realize the connection of the part of the digital switch with the coupling unit and the signal processing unit; a test link is determined according to the connection of the part of the digital switch with the coupling unit and the signal source port, and the connection of the part of the digital switch with the coupling unit and the signal processing unit; and the radio frequency signal is input to different network devices for testing based on the test link.

[0015] The embodiment of the present specification also provides a computer device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the general network equipment radio frequency test method when executing the computer program.

[0016] The embodiment of the present specification also provides a computer readable storage medium, which stores a computer program, and the computer program implements the general network equipment radio frequency test method when executed by a processor.

[0017] The embodiment of the present specification also provides a computer program product, which comprises a computer program, and the computer program implements the general network equipment radio frequency test method when executed by a processor.

[0018] The present application saves cost, reasonably utilizes resources, and improves the reusability and maintainability of test work. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present specification, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The figure shows a schematic diagram of a general network equipment radio frequency test system according to an embodiment of the present specification;

[0021] Figure 2 The figure shows a front view of the external structure of a general network equipment radio frequency test platform according to an embodiment of the present specification;

[0022] Figure 3 The figure shows a schematic diagram of a test base station blocking according to an embodiment of the present specification;

[0023] Figure 4 Fig. 1 shows a schematic diagram of testing blocking of a repeater according to an embodiment of the present specification;

[0024] Figure 5 Fig. 2 shows a schematic diagram of testing spurious coexistence of a base station according to an embodiment of the present specification;

[0025] Figure 6 Fig. 3 shows a flow chart of a radio frequency testing method of a general network device according to an embodiment of the present specification;

[0026] Figure 7 Fig. 4 shows a structural schematic diagram of a computer device according to an embodiment of the present specification.

[0027] List of symbols:

[0028] 100, signal source port;

[0029] 110, double-channel signal source port;

[0030] 111, first port of double-channel signal source;

[0031] 112, second port of double-channel signal source;

[0032] 120, first single-channel signal source port;

[0033] 130, second single-channel signal source port;

[0034] 200, coupling unit;

[0035] 201, first coupler;

[0036] 202, second coupler;

[0037] 203, third coupler;

[0038] 204, fourth coupler;

[0039] 205, fifth coupler;

[0040] 300, signal processing unit;

[0041] 310, band-stop filter port;

[0042] 320, first attenuator;

[0043] 330, second attenuator;

[0044] 400, control unit;

[0045] 410, first control unit;

[0046] 4111, eleventh digital switch;

[0047] 4112, twelfth digital switcher;

[0048] 4113, thirteenth digital switcher;

[0049] 420, second control unit;

[0050] 421, first digital switcher;

[0051] 422, second digital switcher;

[0052] 423, third digital switcher;

[0053] 424, fourth digital switcher;

[0054] 425, fifth digital switcher;

[0055] 426, sixth digital switcher;

[0056] 427, seventh digital switcher;

[0057] 428, eighth digital switcher;

[0058] 429, ninth digital switcher;

[0059] 4210, tenth digital switcher;

[0060] 500, input unit;

[0061] 510, first input port;

[0062] 520, second input port;

[0063] 530, third input port;

[0064] 702, computer device;

[0065] 704, processor;

[0066] 706, memory;

[0067] 708, driving mechanism;

[0068] 710, input / output module;

[0069] 712, input device;

[0070] 714, output device;

[0071] 716, presentation device;

[0072] 718, graphical user interface;

[0073] 720, network interface;

[0074] 722, communication link;

[0075] 724, communication bus. DETAILED DESCRIPTION

[0076] In order to better understand the technical solutions in the specification, the technical solutions in the specification will be clearly and completely described below in combination with the drawings in the specification. Obviously, the described embodiments are only part of the embodiments of the specification, not all the embodiments. Based on the embodiments in the specification, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the specification.

[0077] It should be noted that the terms "first", "second" and the like in the specification and claims of the specification and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the specification described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0078] The specification provides method operation steps as described in the embodiments or flowcharts, but can include more or less operation steps based on routine or non-creative labor. The order of steps listed in the embodiments is only one of the many step execution orders, and does not represent the only execution order. In actual system or device product execution, the method order shown in the embodiments or drawings can be executed in sequence or in parallel.

[0079] It should be noted that the general network device radio frequency test system and method of the specification can be used in the field of communication technology, and can also be used in the field of network device testing. The application field of the general network device radio frequency test system and method of the specification is not limited.

[0080] Figure 1As shown in the schematic diagram of a general network equipment radio frequency test system according to an embodiment of the present specification, the system specifically comprises: a signal source port 100, a coupling unit 200, a signal processing unit 300, a control unit 400, and a plurality of input ports 500. The control unit 400 (not shown in the figure) comprises a plurality of digital switches, the coupling unit 200 comprises a plurality of couplers, and the signal processing unit 300 comprises at least a filter or an attenuator.

[0081] The signal source port 100 is used to receive signals emitted by a signal source, and the signal source port 100 is connected to the input port 500 through the control unit 400 and the coupling unit 200. The coupling unit 200 is used to couple and transmit the signals received by at least one signal source port to at least one input port 500. The control unit 400 is used to switch the connection lines of the signal source port 100, the coupling unit 200, the signal processing unit 300, and the input port 500 in response to a control instruction. The plurality of input ports 500 are used to send the signals emitted by the signal source to a device under test connected to the system.

[0082] The signal processing unit 300 comprises a filter and an attenuator. The attenuator prevents different high-power signals from being directly input to a test instrument, thereby avoiding the burning of the instrument by the radio frequency signal. The attenuator is used to control the signal energy by reducing the amplitude of the uplink signal emitted by the signal source or the amplitude of the downlink signal emitted by the device under test. The filter controls the frequency distribution range of the signal by selecting a specific frequency range. The band-stop filter can effectively filter the useful signal with a frequency of Sub6G, preventing the interference of the useful signal from affecting the test results.

[0083] The filter in the present specification is a band-stop filter. According to the device type and characteristics of the device under test, a plurality of band-stop filters of different frequency bands are set to remove the high-frequency or low-frequency signal components that the filter does not need, and obtain signals of specific frequency bands. In the present specification, the general network equipment radio frequency test system has the filter and the attenuator built-in, avoiding manual connection of auxiliary equipment by the tester. The signal processing unit 300 is built into the network equipment radio frequency test system, which can automatically complete the connection switching according to the test requirements, and has the function of testing with the least radio frequency devices and radio frequency cables, without the need for manual replacement of attenuators, filters, and radio frequency cables in the same test scenario.

[0084] In the embodiment of the present application, the RF interface of the DUT and the test instrument is integrated on the front panel of the general network equipment RF test system, which facilitates cable connection. At the same time, all RF interfaces for connecting the DUT and the test instrument outside the platform are designed on the front panel, and low-attenuation and low-station wave RF cables customized to meet the needs of multiple test scenarios are used. The cables are dedicated and do not need to be disassembled, and have the characteristics of smaller insertion loss, standing wave ratio and preventing RF interface damage and power leakage caused by multiple disassembly, further reducing test cost and improving the accuracy and reproducibility of test results.

[0085] As shown in Figure 2 The front structure diagram of the general network equipment RF test platform outside the present application is shown. All interfaces for connecting the DUT and the RF interface of the test instrument are integrated on the front panel of the network equipment RF test system, which has the characteristics of rich external RF interfaces and the ability to connect multiple devices. Moreover, it can further reduce human operation of the test personnel and facilitate the test personnel to observe the connection state of all external RF interfaces.

[0086] Figure 2 The structure of the present application is designed and optimized according to the 3GPP standard, and the internal RF components are superimposed and coupled, which can meet multiple test scenarios and has the characteristics of using the shortest line and the least RF components for testing, thereby saving resources and compressing the volume to the greatest extent. The coupler inside the system can combine two RF signals output by the signal source into one RF signal input to the DUT, providing a solution for simultaneously outputting multiple RF signals to a single-channel device or inputting one RF signal to a multi-channel device.

[0087] In Figures 3 to 5 The signal source port 100 includes a double-channel signal source port 110, a first single-channel signal source port 120, and a second single-channel signal source port 130. The double-channel signal source port 110 includes a double-channel signal source first port 111 and a double-channel signal source second port 112. The double-channel signal source port 110, the first single-channel signal source port 120, and the second single-channel signal source port 130 are arranged on the front panel of the network equipment RF test system, which can simultaneously connect a double-channel vector signal source / vector network analyzer to connect a signal source and two single-channel single-tone signal sources. In addition, the front panel of the general network equipment RF test system is provided with a spectrum analyzer port, which can connect a spectrum analyzer. Further, the front panel of the network equipment RF test system is provided with an input port 500 Figure 2The input port 500 is connected with the radio frequency port of the external device under test. The input port 500 includes three ports, i.e., a first input port 510, a second input port 520 and a third input port 530. Each input port is equipped with a three-color indicator light which can be customized. The tester can control the on-off logic of the indicator light according to the needs of the tester, thereby increasing the flexibility of the test.

[0088] In the embodiments of the present application, the test PC sends a control instruction to the first control unit or the second control unit through the RS232 or LAN communication mode, so as to switch the required line, and solve the problem that the manual replacement of the radio frequency cable, the band elimination filter and the attenuator in the same test scene causes the cable bending and the standing wave ratio to be reduced, thereby affecting the test accuracy. The first control unit 410 is used to switch the connection line between the signal source port and the coupling unit 200, and the connection line between the signal processing unit or the second control unit 420 and the input port in response to the first control instruction. The second control unit 420 is used to switch the connection line between the coupling unit 200 and the signal processing unit in response to the second control instruction.

[0089] The signal processing unit includes a band elimination filter port 310, a first attenuator 320 and a second attenuator 330. The first attenuator 320 can be a 10dB attenuator, and the second attenuator 330 can be a 20dB attenuator. The second control unit 420 includes a fifth digital switch 425, a sixth digital switch 426, a seventh digital switch 427, an eighth digital switch 428, a ninth digital switch 429 and a tenth digital switch 4210. One side of the band elimination filter port 310 is connected with the tenth digital switch 4210, and the other side is connected with the first attenuator port through the ninth digital switch 429. The band elimination filter port 310 is used to filter the downlink signal input by the device under test to the system. A band elimination filter with a suitable frequency range can be selected to attenuate the downlink signal input by the device under test to the system. In addition, the two ends of the second attenuator 330 port are connected with the sixth digital switch 426 and the seventh digital switch 427, respectively, and are used to attenuate the downlink signal emitted by the device under test to the system through the input port, or the uplink signal emitted by the signal source port to the system.

[0090] In some embodiments of the present disclosure, the dual-channel signal source port 100 includes a dual-channel signal source first port 111 and a dual-channel signal source second port 112. The first control unit 410 includes an eleventh digital switch 4111, a twelfth digital switch 4112, and a thirteenth digital switch 4113. One end of the dual-channel signal source first port is connected to the twelfth digital switch 4112. The other end of the twelfth digital switch is connected to one end of the eighth digital switch 428, the second coupler, and the third coupler, respectively. One end of the dual-channel signal source second port is connected to the thirteenth digital switch 4113. The other end of the thirteenth digital switch 4113 is connected to the second coupler, the fourth coupler, and the fifth coupler, respectively. The fourth coupler is connected to the third coupler.

[0091] In some embodiments of the present disclosure, one end of the eighth digital switch 428 is connected to the first coupler 201, the second coupler 202, the third coupler 203, the fifth coupler 205, and one end of the twelfth digital switch 4112, respectively. Specifically, the eighth digital switch 428 switches the contacts based on the control instructions, and determines which coupler or digital switch is actually connected according to the switched contacts.

[0092] In some embodiments of the present disclosure, one end of the eighth digital switch 428 is connected to the fifth coupler 205. The fifth coupler is coupled to receive signals input from the dual-channel signal source second port 112 and the first single-channel signal source port 120, and can be used for testing the blocking of the base station. Specifically, the dual-channel signal source second port 112 and the first single-channel signal source port 120 generate signals. The two signal sources are connected to the dual-channel signal source second port 112 and the first single-channel signal source port 120 through radio frequency cables, respectively. The thirteenth digital switch 4213 is switched to contact 3. The two signals are coupled into one signal through the fifth coupler 205. The eighth digital switch 428 is switched to contact 6. The seventh digital switch 427 is switched to contact 2. The sixth digital switch 426 is switched to contact 2. The sixth digital switch and the seventh digital switch are connected. Further, the fifth digital switch 425 is switched to contact 2. The fourth digital switch 424 is switched to contact 1. Finally, the radio frequency signal is input to the radio frequency interface of the base station through the first input port 510 for testing.

[0093] One end of the eighth digital switch 428 is connected with the third coupler 203, and the third coupler 203 is connected with the fourth coupler 204, and the fourth coupler 204 is coupled with the signals input from the second single-channel signal source port 130 and the double-channel signal source second port 112, and the third coupler 203 is coupled with the signals from the double-channel signal source first port 111 and the signals coupled by the fourth coupler 204, which can be used for testing the intermodulation of the receiver; one end of the eighth digital switch 428 is connected with the second coupler 202, and the second coupler 202 is coupled with the two-way signals from the double-channel signal source first port 111 and the double-channel signal source second port 112, which is used for testing the ACS / ICS; the other end of the eighth digital switch 428 is directly connected with the double-channel signal source first port 111, which is used for testing the sensitivity of the receiver. The other end of the eighth digital switch 428 is connected with the first coupler 201, and the first coupler 201 is coupled with the two-way signals from the spectrum analyzer and the double-channel signal source first port 111, which is used for testing the emission intermodulation.

[0094] The other end of the eighth digital switch 428 is connected with one end of the seventh digital switch 427. The second attenuator and the wire are connected in parallel between the sixth digital switch 426 and the seventh digital switch 427. The other end of the sixth digital switch 426 is connected with the fifth digital switch 425; the ninth digital switch 429 and the tenth digital switch 4210 are connected with the band elimination filter. The other end of the first attenuator is connected with the fifth digital switch.

[0095] In the embodiment of the present application, the seventh digital switch 427 switches the contact according to the control instruction. When the seventh digital switch 427 switches to the contact 1 or the upper contact, the seventh digital switch 427 is connected with one end of the second attenuator, and the other end of the second attenuator is connected with the sixth digital switch 426, so that the seventh digital switch 427 and the sixth digital switch 426 are connected through the second attenuator. When the seventh digital switch 427 switches to the contact 2 or the lower contact, the seventh digital switch 427 and the sixth digital switch 426 are not connected with the second attenuator, and the seventh digital switch 427 and the sixth digital switch 426 are directly connected.

[0096] In the specification, one end of the fourth digital switch 424 is connected with the fifth digital switch 425, and the other end of the fourth digital switch 424 is connected with the first digital switch 421, the second digital switch 422 and the third digital switch 423 respectively, and the first digital switch 421, the second digital switch 422 and the third digital switch 423 are connected with the first input port 510, the second input port 520 and the third input port 530 respectively. The first digital switch 421, the second digital switch 422 and the third digital switch 423 serve as the second control unit, and are used for starting or stopping the test on the network device according to whether the signal from the network device connected with the system is accessed to the system.

[0097] Figure 3 The figure shows a test on the blocking of the base station according to the embodiment of the specification.

[0098] In the specification, the two radio frequency signals are coupled into one through the coupler, and then input to the radio frequency interface of the base station to realize the test on the blocking of the base station. Specifically, the test line in the universal network device radio frequency test system is as shown in the figure. Figure 3 In the figure, two signal sources are connected with the first port of the double-channel signal source and one single-channel signal source port (for example, the first single-channel signal source port 120) of the universal network device radio frequency test system through radio frequency cables, the thirteenth digital switch 413 is switched to the contact 3, the two signals are coupled into one through the fifth coupler 205, the eighth digital switch 428 is switched to the contact 6, the seventh digital switch 427 is switched to the contact 2, the sixth digital switch 426 is switched to the contact 2, the fifth digital switch 425 is switched to the contact 2, the fourth digital switch 424 is switched to the contact 1, the first digital switch 421 is switched to the contact 1, and finally the radio frequency signal from the signal source is input to the radio frequency interface of the base station through the first input port for the test.

[0099] Figure 4 The figure shows a test on the blocking of the repeater according to the embodiment of the specification. The figure can be used to test the blocking of the repeater.

[0100] In the embodiment of the specification, the system further comprises a spectrum analyzer port and a repeater interface, the repeater interface is connected with the measured repeater outside the system, and the output end of the measured repeater is connected with the spectrum analyzer port in the system.

[0101] Two signal sources are connected to the second single-channel signal source port 130 and the first single-channel signal source port 120 of the platform through radio frequency cables, respectively, the thirteenth digital switch is switched to contact 3, two signals are coupled to one through the fifth coupler, the eighth digital switch 428 is switched to contact 6, the seventh digital switch 427 is switched to contact 2, the sixth digital switch 426 is switched to contact 2, the fifth digital switch 425 is switched to contact 2, the fourth digital switch 424 is switched to contact 1, finally the first digital switch 421 is switched to contact 1, and the radio frequency signal is input to the repeater interface of the repeater, and the output signal of the measured repeater is input to the spectrum analyzer port of the system, forming a path for testing.

[0102] According to the structural diagram of Figure 3 and Figure 4 , it can be known that the blocking test of the base station and the repeater needs to be performed through the coupler to couple two radio frequency signals and then input to the radio frequency interface of the two types of devices, so that the blocking of the base station and the repeater can be completely tested through the link of the through end and the coupling end of the coupler, which not only achieves the effect of multiplexing the link without increasing radio frequency devices and radio frequency cables, but also meets the link budget.

[0103] Figure 5 The diagram is a schematic diagram for testing the spurious coexistence of a base station according to an embodiment of the present specification. The diagram can test the spurious coexistence of the base station.

[0104] The test item for testing the spurious coexistence of the base station needs to select a band elimination filter corresponding to the frequency band according to the working frequency band of the measured base station. The present specification selects a band elimination filter of 2515-2675 MHz. The test line for testing the downlink signal emitted by the measured base station in the network equipment radio frequency test system is as follows Figure 5 ​As shown: the measured base station accesses the general network equipment radio frequency test system through the input port 500, the measured base station sends a signal, and according to the control instruction, the first digital switch 421 is switched to the contact 2, the fourth digital switch 424 is switched to the contact 1, the fifth digital switch 425 is switched to the contact 1, the ninth digital switch 429 is switched to the contact 1, the tenth digital switch 4210 is switched to the contact 1, and the eleventh digital switch 4111 is switched to the contact 2. When the first digital switch 421, the fourth digital switch 424, the fifth digital switch 425, the ninth digital switch 429 and the tenth digital switch 4210 are all closed, and the other digital switch ports in the system are in the case, the spectrum analyzer accesses through the spectrum analyzer interface of the network equipment radio frequency test system. Therefore, the test link for testing the spurious coexistence of the base station is completed, and the radio frequency signal sent by the measured base station can be received through the link for subsequent testing. The embodiment of the present application can also select a band elimination filter of 3300MHz-3600MHz, a band elimination filter of 3400MHz-3600MHz, 4800MHz-4900MHz or 4800MHz-4960MHz. Specifically, according to different control instructions, the ninth digital switch 429 is switched to the contact 2, the tenth digital switch 4210 is switched to the contact 2, the ninth digital switch 429 is switched to the contact 3, the tenth digital switch 4210 is switched to the contact 3, and the like mode is controlled. Different band elimination filters are used to filter useful signals of different frequency ranges to prevent the interference of useful signals from affecting the test results. Thus, the switching control of different test cases is realized.

[0105] Figure 6 The flowchart of the general network equipment radio frequency test method of the embodiment of the present application specifically includes the following steps:

[0106] Step 601, selecting a signal source port to determine a radio frequency signal. In this step, one or more appropriate signal source ports are selected, and the signal source port is connected to the system through a radio frequency cable.

[0107] Step 602, controlling the first control unit according to the first control instruction to make part of the digital switches in the first control unit closed, realizing the connection of part of the digital switches with the coupling unit and the signal source port. In this step, according to the received first control instruction, the specific one or more digital switches of the first control unit are controlled to be closed, thereby connecting part of the digital switches with the coupling unit and the signal source port.

[0108] Step 603, according to the second control instruction, control the second control unit, so that part of the digital switch in the second control unit is closed, to achieve the connection of part of the digital switch with the coupling unit and the signal processing unit. According to the received second control instruction, control the specific one or more digital switch of the second control unit to close, so as to connect part of the digital switch with the coupling unit and the signal processing unit.

[0109] Step 604, according to the connection of part of the digital switch with the coupling unit and the signal source port, and the connection of part of the digital switch with the coupling unit and the signal processing unit, determine the test link. According to the connection in step 602 and step 603, the construction of the test link is completed.

[0110] Step 605, based on the test link, test different network devices.

[0111] According to the different device rated power, coverage type, port number and working frequency band of the network device in the test requirement, the radio frequency cable, attenuator, power divider and filter matched with the network device to be tested are selected, and then the test required instrument is used to perform related test according to the test link constructed according to the foregoing steps. Including: input radio frequency signal from the signal source port and test the network device along the test link; or receive the signal sent by the network device from the input port, and test the network device along the test link.

[0112] The application saves cost, reasonably utilizes resources and ensures moderate volume without redundancy under the premise of meeting more test scenarios. Further improve the reusability and maintainability of the test work, and have significant practical application value.

[0113] As Figure 7The diagram illustrates a computer device according to an embodiment of this specification. The general network device radio frequency testing method described in this application can be applied to the computer device. The computer device 702 may include one or more processors 704, such as one or more central processing units (CPUs), each of which can implement one or more hardware threads. The computer device 702 may also include any memory 706 for storing any kind of information such as code, settings, data, etc. Non-limitingly, for example, the memory 706 may include any type of RAM, any type of ROM, flash memory, hard disk, optical disk, etc. More generally, any memory can use any technology to store information. Further, any memory can provide volatile or non-volatile retention of information. Further, any memory can represent a fixed or removable component of the computer device 702. In one case, when the processor 704 executes associated instructions stored in any memory or combination of memories, the computer device 702 can perform any operation of the associated instructions. The computer device 702 also includes one or more drive mechanisms 708 for interacting with any memory, such as hard disk drive mechanisms, optical disk drive mechanisms, etc.

[0114] Computer device 702 may also include an input / output module 710 (I / O) for receiving various inputs (via input device 712) and providing various outputs (via output device 714). A specific output mechanism may include a presentation device 716 and an associated graphical user interface (GUI) 718. In other embodiments, the input / output module 710 (I / O), input device 712, and output device 714 may be omitted, and the device may function solely as a computer device within a network. Computer device 702 may also include one or more network interfaces 720 for exchanging data with other devices via one or more communication links 722. One or more communication buses 724 couple the components described above together.

[0115] Communication link 722 can be implemented in any way, such as via a local area network, a wide area network (e.g., the Internet), a point-to-point connection, or any combination thereof. Communication link 722 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., governed by any protocol or combination of protocols.

[0116] Corresponding to Figure 6 In addition to the methods described above, embodiments of this specification also provide a computer-readable storage medium storing a computer program that, when executed by a processor, performs the steps of the methods described above.

[0117] The embodiments of the present specification also provide a computer readable instruction, wherein when the processor executes the instruction, the program therein causes the processor to execute the method as shown in Figure 6

[0118] It should be understood that the size of the sequence number of the above-mentioned processes in various embodiments of the present specification does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present specification.

[0119] It should also be understood that in the embodiments of the present specification, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships. For example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present specification generally represents an "or" relationship between the front and rear associated objects.

[0120] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed in the present specification can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been described in the above description in general. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present specification.

[0121] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0122] In several embodiments provided in the present specification, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed mutual objects can be indirect coupling or communication connection through some interfaces, devices or units, and can also be electrical, mechanical or other forms of connection.

[0123] ​The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present specification.

[0124] In addition, each functional unit in each embodiment of the present specification can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0125] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present specification, or the entire or part of the technical solutions that essentially contribute to the prior art, or the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present specification. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various program code storage media.

[0126] The principles and implementation manners of the present specification are described in the specific embodiments in the present specification, and the above embodiment description is only used to help understand the method of the present specification and its core idea; meanwhile, for those skilled in the art, according to the idea of the present specification, the specific implementation manner and application range will have changes, and the above description should not be understood as a limitation of the present specification.

Claims

1. A general-purpose network device radio frequency testing system, characterized in that, The system includes: a signal source port, multiple input ports, a coupling unit, a signal processing unit, and a control unit; wherein, the control unit includes multiple digital switches, the coupling unit includes multiple couplers, and the signal processing unit includes at least a filter or attenuator; The signal source port is used to receive signals emitted by a signal source, and the signal source port is connected to the input port through the control unit and the coupling unit; The coupling unit is used to couple and transmit the signal received by at least one signal source port to at least one input port; The control unit is used to respond to control commands and switch the connection lines between the signal source port and the coupling unit, the signal processing unit and the input port. The control unit includes: a first control unit and a second control unit. The first control unit is used to respond to a first control command to switch the connection line between the signal source port and the coupling unit, and the connection line between the signal processing unit or the second control unit and the input port; The second control unit is used to respond to a second control command and switch the connection line between the coupling unit and the signal processing unit; the second control unit includes a first digital switch, a second digital switch, a third digital switch, a fourth digital switch, a fifth digital switch, a sixth digital switch, a seventh digital switch, an eighth digital switch, a ninth digital switch and a tenth digital switch; One end of the eighth digital switch is connected to one end of the first coupler, the second coupler, the third coupler, and the fifth coupler, respectively, and the other end of the eighth digital switch is connected to one end of the seventh digital switch; one end of the fourth digital switch is connected to the fifth digital switch, and the other end is connected to the first digital switch, the second digital switch, and the third digital switch, respectively. The first digital switch, the second digital switch, and the third digital switch are respectively connected to the first input port, the second input port, and the third input port. The signal processing unit includes: a band-stop filter port, a first attenuator port, and a second attenuator port; the two ends of the second attenuator port are respectively connected to a sixth digital switch and a seventh digital switch, and are used to attenuate the downlink signal sent by the device under test to the system through the input port, or the uplink signal sent to the system through the signal source port. One side of the band-stop filter port is connected to the tenth digital switch, and the other side is connected to the first attenuation port through the ninth digital switch. The band-stop filter port is used to filter the downlink signal input from the device under test to the system. The plurality of input ports are used to send the signals emitted by the signal source to the device under test connected to the system.

2. The system according to claim 1, characterized in that, The signal source ports include: a dual-channel signal source port, a first single-channel signal source port, and a second single-channel signal source port.

3. The system according to claim 2, characterized in that, The dual-channel signal source port includes a dual-channel signal source first port and a dual-channel signal source second port; The first control unit includes an eleventh digital switch, a twelfth digital switch, and a thirteenth digital switch; The first port of the dual-channel signal source is connected to one end of the twelfth digital switch; The other end of the twelfth digital switch is connected to one end of the eighth digital switch, the second coupler, and the third coupler, respectively; The second port of the dual-channel signal source is connected to one end of the thirteenth digital switch; The other end of the thirteenth digital switch is connected to the second coupler, the fourth coupler, and the fifth coupler, respectively; The fourth coupler is connected to the third coupler.

4. The system according to claim 3, characterized in that, The system further includes: One end of the eighth digital switch is connected to one end of the twelfth digital switch; A second attenuator and a wire are connected in parallel between the sixth digital switch and the seventh digital switch; The other end of the sixth digital switch is connected to the fifth digital switch; A band-stop filter is connected between the ninth digital switch and the tenth digital switch; The other end of the first attenuator is connected to the fifth digital switch.

5. The system according to claim 1, characterized in that, The system further includes: a spectrum analyzer port and a repeater interface, wherein the repeater interface is connected to the repeater under test, and the output terminal of the repeater under test is connected to the spectrum analyzer port.

6. The system according to claim 2, characterized in that, The first single-channel signal source port is connected to the fifth coupler, and the second single-channel signal source port is connected to the fourth coupler.

7. A general method for radio frequency testing of network devices, characterized in that, The method employs the system described in any one of claims 1 to 6, comprising: Select the signal source port and determine the radio frequency signal; The first control unit is controlled according to the first control command, so that some of the digital switches in the first control unit are closed, thereby realizing the connection between some of the digital switches and the coupling unit and the signal source port; The second control unit is controlled according to the second control command, so that some of the digital switches in the second control unit are closed, thereby realizing the connection between some of the digital switches and the coupling unit and the signal processing unit. The test link is determined based on the connection between some digital switches and the coupling unit and the signal source port, and the connection between some digital switches and the coupling unit and the signal processing unit. Based on the aforementioned test link, different network devices are tested.

8. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor implements the method of claim 7 when executing the computer program.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method of claim 7.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the method of claim 7.

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