A universal network equipment radio frequency test system

Abstract

The present invention provides a universal network equipment radio frequency test system, comprising: a coupling unit, used for coupling and transmitting a signal received by at least one signal source port to at least one load output port; a control unit, used for responding to a control instruction and switching the connection lines between a dual-channel signal source port, a first single-channel signal source port, a second single-channel signal source port and at least three load output ports; by adopting the above technical scheme, a variety of signal sources can be connected to obtain signals through the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port, and by switching different connection lines by the control unit, the coupling unit can couple a variety of signals to obtain more types of test signals, thereby obtaining a variety of test cases, and then sending them to a plurality of output interfaces. Therefore, the system can generate a variety of test cases after connecting once, thereby reducing the number of plug-ins and reducing the speed of interface aging.

Description

Technical Field

[0001] The invention relates to the technical field of network equipment testing, in particular to a universal network equipment radio frequency testing system. Background Art

[0002] In recent years, with the rapid growth of mobile services, the communications industry has developed rapidly. In order to solve the problem of mobile network coverage, various network equipment such as base stations, repeaters, satellite earth stations, etc. have been continuously updated, resulting in a gradual increase in the workload of equipment testing. The RF testing of such network equipment involves many steps, and the testing work is highly comprehensive. Traditional testing is usually based on manual testing or the use of an interface box with the function of testing a single network device. This interface box has a single function and limitations. It lacks flexibility and cannot meet the needs of various network equipment RF testing scenarios, which to a certain extent causes waste of resources and unreasonable use.

[0003] Communications testers use RF cables to connect the external RF interface of an interface box with a single test scenario to the test instrument, and then send instructions to the interface box through the control PC to switch the internal test line, forming a path that meets the test requirements, and finally conduct relevant RF tests.

[0004] Since the interface box only has a single test scenario, it has great limitations, lacks flexibility, and cannot meet other test requirements. The RF cable connected to the external RF interface of the interface box needs to be disassembled when there are other test requirements, resulting in different RF cables used in the interface box each time, which is prone to loosening and damage at the interface, increasing the uncertainty of the RF cable standing wave ratio and insertion loss, affecting the accuracy and reproducibility of the test results. It does not have a reverse signal detection function, and it is easy to have a test hazard that the device under test mistakenly sends a high-power RF signal and reversely inputs it to the signal source, causing damage to the instrument. Therefore, the disadvantages of this existing technical solution are that the test scenario is single, resulting in a waste of resources, and there are test hazards during operation, and the uncertainty of RF cable parameters interferes with the test results. Summary of the invention

[0005] In view of the above problems in the prior art, the purpose of this article is to provide a universal network equipment RF test system to solve the problem in the prior art that multiple test scenarios require repeated connection of lines, resulting in easy aging of line interfaces.

[0006] In order to solve the above technical problems, the specific technical solutions of this article are as follows:

[0007] On the one hand, the present invention provides a universal network equipment radio frequency test system, comprising: at least three load output ports, a dual-channel signal source port, a first single-channel signal source port, a second single-channel signal source port, a control unit and a coupling unit; the control unit comprises a plurality of digital switches, and the coupling unit comprises a plurality of couplers;

[0008] The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are used to receive signals from a signal source;

[0009] The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to the at least three load output ports through the coupling unit and the control unit;

[0010] The coupling unit is used to couple and transmit a signal received by at least one signal source port to the at least one load output port;

[0011] The control unit is used to respond to the control instruction and switch the connection lines between the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port and the at least three load output ports;

[0012] The at least three load output ports are used to send the signal source to the station to be tested.

[0013] As an embodiment of this article, the dual-channel signal source port includes a first dual-signal source port and a second dual-signal source port;

[0014] The first dual signal source port is connected to one end of a twelfth digital switch;

[0015] The other end of the twelfth digital switch is respectively connected to one end of the tenth digital switch, the second coupler and the third coupler;

[0016] The second coupler and the third coupler are respectively connected to one end of the tenth digital switch;

[0017] The other end of the tenth digital switch is connected to one end of the eighth digital switch;

[0018] The other end of the eighth digital switch is connected to one end of the ninth digital switch;

[0019] The second dual signal source port is connected to one end of a thirteenth digital switch;

[0020] The other end of the thirteenth digital switch is connected to the second coupler, the fourth coupler and the fifth coupler respectively;

[0021] The fourth coupler is connected to the third coupler;

[0022] The other end of the ninth digital switch is connected to the first load output port, the second load output port and the third load output port respectively.

[0023] As an embodiment of this article, the first single-channel signal source port is connected to one end of the fifth digital switch;

[0024] The other end of the fifth digital switch is connected to the fourth coupler and the sixth coupler respectively;

[0025] The sixth coupler is connected to one end of the eighth digital switch.

[0026] As an embodiment of this article, the second single-channel signal source port is connected to one end of the sixth digital switch;

[0027] The other end of the sixth digital switch is connected to the sixth coupler and the fifth coupler respectively.

[0028] As an embodiment of this article, the first load output port, the second load output port and the third load output port each include an output port and a load port;

[0029] The other end of the ninth digital switch is connected to one end of the second digital switch, the third digital switch and the fourth digital switch respectively;

[0030] The other end of the second digital switch is connected to the first output port and the first load port respectively;

[0031] The other end of the third digital switch is connected to the second output port and the second load port respectively;

[0032] The other end of the fourth digital switch is connected to the third output port and the third load port respectively.

[0033] As an embodiment of this article, it also includes a spectrum analysis port and an attenuator output port;

[0034] The attenuator output port is used to receive the signal source processed by the station to be tested;

[0035] The spectrum analysis port is connected to the attenuator output port through the control unit and the coupling unit, and is used to connect the signal source processed by the station to be tested to the spectrum analyzer.

[0036] As an embodiment of this article, the spectrum analysis port is connected to one end of the eleventh digital switch;

[0037] The other end of the eleventh digital switch is respectively connected to one end of the seventh digital switch tube and the first coupler;

[0038] The first coupler is respectively connected to the twelfth digital switch unit and one end of the seventh digital switch tube;

[0039] The other end of the seventh digital switch tube is connected to the attenuator output port.

[0040] As an embodiment of this article, it also includes a filter output port;

[0041] The filter output port is connected to the other end of the eleventh digital switch.

[0042] As an embodiment of the present invention, it also includes an attenuator input port;

[0043] The attenuator input port includes an N-mode port and a 2.92mm mode port;

[0044] The N-mode port and the 2.92 mm mode port are both connected to one end of the first digital switch, and the other end of the first digital switch is connected to one end of the eighth digital switch.

[0045] As an embodiment of this article, it also includes a filter input port;

[0046] The filter input port is connected to one end of the eighth digital switch unit.

[0047] By adopting the above technical solution, a variety of signal sources can be connected to obtain signals through the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port, and by switching different connection lines through the control unit, the coupling unit can couple the various signals to obtain more types of test signals, and then obtain a variety of test cases, which are then sent to multiple output interfaces. Therefore, the system can generate multiple test cases after connecting once, reducing the number of plug-ins and reducing the speed of interface aging.

[0048] In order to make the above and other purposes, features and advantages of this article more obvious and easy to understand, the following specifically cites preferred embodiments and describes them in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of this article or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of this article. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A topology diagram of a general network device radio frequency test system according to an embodiment of this invention is shown;

[0051] Figure 2 A first schematic diagram of a general network device radio frequency testing system according to an embodiment of this invention is shown;

[0052] Figure 3 A preferred schematic diagram of a universal network equipment radio frequency testing system according to an embodiment of this invention is shown.

[0053] Description of the accompanying symbols:

[0054] 101. a first coupler;

[0055] 102. a second coupler;

[0056] 103. a third coupler;

[0057] 104. fourth coupler;

[0058] 105. fifth coupler;

[0059] 106. Sixth coupler;

[0060] 201, a first digital switch;

[0061] 202, a second digital switch;

[0062] 203, third digital switch;

[0063] 204, fourth digital switch;

[0064] 205, fifth digital switch;

[0065] 206, sixth digital switch;

[0066] 207, seventh digital switch;

[0067] 208, the eighth digital switch;

[0068] 209, ninth digital switch;

[0069] 210, tenth digital switch;

[0070] 211, 11th digital switch;

[0071] 212, twelfth digital switch;

[0072] 213. Thirteenth digital switch. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of this article to clearly and completely describe the technical solutions in the embodiments of this article. Obviously, the described embodiments are only part of the embodiments of this article, not all of the embodiments. Based on the embodiments of this article, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this article.

[0074] It should be noted that the terms "first", "second", etc. in the specification and claims of this article and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of this article described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0075] like Figure 1 A topological diagram of a universal network equipment radio frequency test system is shown, comprising: at least three load output ports, a dual-channel signal source port, a first single-channel signal source port, a second single-channel signal source port, a control unit and a coupling unit; the control unit comprises a plurality of digital switches, and the coupling unit comprises a plurality of couplers;

[0076] The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are used to receive signals from a signal source;

[0077] The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to the at least three load output ports through the coupling unit and the control unit;

[0078] The coupling unit is used to couple and transmit a signal received by at least one signal source port to the at least one load output port;

[0079] The control unit is used to respond to the control instruction and switch the connection lines between the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port and the at least three load output ports;

[0080] The at least three load output ports are used to send the signal source to the station to be tested.

[0081] By adopting the above technical solution, a variety of signal sources can be connected to obtain signals through the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port, and by switching different connection lines through the control unit, the coupling unit can couple the various signals to obtain more types of test signals, and then obtain a variety of test cases, which are then sent to multiple output interfaces. Therefore, the system can generate multiple test cases after connecting once, reducing the number of plug-ins and reducing the speed of interface aging.

[0082] When the tester is testing, the dual-channel signal source port, the first single-channel signal source port, and the second single-channel signal source port can all be connected to the signal source. In this article, the signal source can be a signal generator and a vector network analyzer, etc. This article does not limit this. The control unit can form a coupling signal between the dual-channel signal source ports and send it to the load output port; the signal of the first single-channel signal source port and the signal of the second single-channel signal source port can also form a coupling signal and send it to the load output port; the signal of the first single-channel signal source port and the signal of the second single-channel signal source port can also form a coupling signal and send it to the load output port; the signal of the dual-channel signal source port and the signal of the first single-channel signal source port can also form a coupling signal and send it to the load output port; the signal of the dual-channel signal source port and the signal of the second single-channel signal source port can also form a coupling signal and send it to the load output port. In this way, the three signals can form multiple test cases. And when forming the coupling signal, multiple load signals can be added to the coupling signal through the three load output ports, which further increases the number of test cases and sends them to different stations to be tested.

[0083] In this paper, the stations to be tested include base stations, repeaters and satellite earth stations.

[0084] Of course, in some cases, the output port can also be used to receive signals sent by the signal source. The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port can be used as output ports to send coupled signals to the station to be detected. This article does not limit this.

[0085] In order to further illustrate the connection line between the signal source port and the output port, this article can give a detailed schematic diagram of the coupler and the control unit.

[0086] like Figure 2 A first schematic diagram of a universal network device radio frequency test system is shown, wherein the dual-channel signal source port includes a first dual signal source port and a second dual signal source port;

[0087] The first dual signal source port is connected to one end of the twelfth digital switch 212;

[0088] The other end of the twelfth digital switch 212 is respectively connected to one end of the tenth digital switch 210, the second coupler 102 and the third coupler 103;

[0089] The second coupler 102 and the third coupler 103 are respectively connected to one end of the tenth digital switch 210;

[0090] The other end of the tenth digital switch 210 is connected to one end of the eighth digital switch 208;

[0091] The other end of the eighth digital switch 208 is connected to one end of the ninth digital switch 209;

[0092] The second dual signal source port is connected to one end of the thirteenth digital switch 213;

[0093] The other end of the thirteenth digital switch 213 is connected to the second coupler 102, the fourth coupler 104 and the fifth coupler 105 respectively;

[0094] The fourth coupler 104 is connected to the third coupler 103;

[0095] The other end of the ninth digital switch 209 is connected to the first load output port, the second load output port and the third load output port respectively.

[0096] The first single-channel signal source port is connected to one end of the fifth digital switch 205;

[0097] The other end of the fifth digital switch 205 is connected to the fourth coupler 104 and the sixth coupler 106 respectively;

[0098] The sixth coupler 106 is connected to one end of the eighth digital switch 208 .

[0099] The second single-channel signal source port is connected to one end of the sixth digital switch 206;

[0100] The other end of the sixth digital switch 206 is connected to the sixth coupler 106 and the fifth coupler 105 respectively.

[0101] For example, when the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to signals, if the dual-channel signal source port itself generates a coupling signal, the twelfth digital switch 212, the twelfth digital switch 212, the tenth digital switch 210, the eighth digital switch 208 and the ninth digital switch 209 can be turned on, and the remaining digital switches are turned off, then the coupling signal can be coupled and transmitted to the load output port.

[0102] When the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to signals, if the dual-channel signal source port and the first single-channel signal source port generate coupling signals, the twelfth digital switch 212, the fifth digital switch 205, the tenth digital switch 210, the eighth digital switch 208 and the ninth digital switch 209 can be turned on, and the remaining digital switches are turned off, then the coupling signal can be coupled and transmitted to the load output port.

[0103] When the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to signals, if the first single-channel signal source port and the second single-channel signal source port generate coupling signals, the fifth digital switch 205, the sixth digital switch 206, the tenth digital switch 210, the eighth digital switch 208 and the ninth digital switch 209 can be turned on, and the remaining digital switches are turned off, then the coupling signal can be coupled and transmitted to the load output port.

[0104] like Figure 3 A preferred schematic diagram of a universal network device radio frequency test system is shown, in order to increase the number of test cases, several different load ports can be added at the output end, and the first load output port, the second load output port and the third load output port all include an output port and a load port;

[0105] The other end of the ninth digital switch 209 is connected to one end of the second digital switch 202, the third digital switch 203 and the fourth digital switch 204 respectively;

[0106] The other end of the second digital switch 202 is connected to the first output port and the first load port respectively;

[0107] The other end of the third digital switch 203 is connected to the second output port and the second load port respectively;

[0108] The other end of the fourth digital switch 204 is connected to the third output port and the third load port respectively.

[0109] In order to facilitate the test personnel to test the return signal of the station to be tested, this article can also receive the signal fed back by the station to be tested, and can also connect to the spectrum analyzer to detect the signal returned by the station to be tested.

[0110] Specifically, the embodiment of this article further includes a spectrum analysis port and an attenuator output port;

[0111] The attenuator output port is used to receive the signal source processed by the station to be tested;

[0112] The spectrum analysis port is connected to the attenuator output port through the control unit and the coupling unit, and is used to connect the signal source processed by the station to be tested to the spectrum analyzer.

[0113] The spectrum analysis port is connected to one end of the eleventh digital switch 211;

[0114] The other end of the eleventh digital switch 211 is respectively connected to one end of the seventh digital switch tube and the first coupler 101;

[0115] The first coupler 101 is connected to one end of the twelfth digital switch unit and the seventh digital switch tube respectively;

[0116] The other end of the seventh digital switch tube is connected to the attenuator output port.

[0117] As an embodiment of this article, it also includes a filter output port;

[0118] The filter output port is connected to the other end of the eleventh digital switch 211 .

[0119] As an embodiment of the present invention, it also includes an attenuator input port;

[0120] The attenuator input port includes an N-mode port and a 2.92mm mode port;

[0121] The N-mode port and the 2.92 mm mode port are both connected to one end of the first digital switch 201 , and the other end of the first digital switch 201 is connected to one end of the eighth digital switch 208 .

[0122] As an embodiment of this article, it also includes a filter input port;

[0123] The filter input port is connected to one end of the eighth digital switch unit.

[0124] The first digital switch 201, the second digital switch 202, the third digital switch 203, the fourth digital switch 204, the sixth digital switch 206, the seventh digital switch 207, the eighth digital switch 208, the ninth digital switch 209 and the eleventh digital switch 211 are all high-frequency digital switches;

[0125] The fifth digital switch 205 , the tenth digital switch 210 , the twelfth digital switch and the thirteenth digital switch 213 are all low-frequency digital switches.

[0126] The first coupler 101, the fifth coupler 105 and the sixth coupler 106 are all high-frequency couplers;

[0127] The second coupler 102 , the third coupler 103 and the fourth coupler 104 are all low-frequency couplers.

[0128] For convenience of explanation, in this article, the contacts of the switch can be named contact 1, contact 2, contact 3, contact 4, etc. from top to bottom in the direction of the figure. The load output ports can be named first load output port, second load output port, and third load output port from top to bottom.

[0129] The blocking of the test base station is mainly tested by coupling two RF signals into one signal through a coupler and inputting it into the RF interface of the base station. The specific test circuit is: two signal sources are respectively connected to the dual-channel signal source port and the second single-channel signal source port of this platform through RF cables, the thirteenth digital switch 213 is switched to 3 contacts, the sixth digital switch 206 is switched to 2 contacts, the two signals are coupled into one signal through the fifth coupler 105, and then the eighth digital switch 208 is switched to 2 contacts, the ninth digital switch 209 is switched to 1 contact, and the second digital switch 202 is switched to 1 contact, and finally the RF signal is input into the RF interface of the base station through the first load output port for testing.

[0130] The test line for testing the blockage of the repeater is as follows: two signal sources are respectively connected to the dual-channel signal source port and the second single-channel signal source port of this platform through RF cables, the thirteenth digital switch 213 is switched to 3 contacts, the sixth digital switch 206 is switched to 2 contacts, the two signals are coupled into one signal through the fifth coupler 105, and then the eighth digital switch 208 is switched to 2 contacts, the ninth digital switch 209 is switched to 1 contact, the second digital switch 202 is switched to 1 contact, the RF signal is input to the input end of the repeater through the first load output port, and finally the output end of the repeater is connected to the attenuator output port, the seventh digital switch 207 is switched to 1 contact, the eleventh digital switch 211 is switched to 1 contact, and a path is formed with the spectrum analyzer port for testing.

[0131] To test the gain flatness of the frequency converter on the satellite earth station while meeting the link budget and without adding RF devices and RF cables, the test circuit is designed as follows: the signal source is connected to the second single-channel signal source port through an RF cable, passes through the through end of the fifth coupler 105, switches the eighth digital switch 208 to 2 contacts, the ninth digital switch 209 to 1 contact, the second digital switch 202 to 1 contact, and inputs the RF signal to the input end of the frequency converter on the satellite earth station through the first load output port. Finally, the output end of the frequency converter on the satellite earth station is connected to the attenuator output port, the seventh digital switch 207 is switched to 1 contact, the eleventh digital switch 211 is switched to 1 contact, and a path is formed with the spectrum analyzer port for testing.

[0132] After completing the design of the test link, calculate the link budget. This value is used to determine whether the designed test link meets the standard requirements and can be put into test use. Among them, the link budget of base station blocking is the most stringent. If the designed test link can meet the link budget of this test case, the other two links can also meet it. According to the 3GPP38.141-1 standard, the interference signal required for the base station blocking test is a single-tone signal with a signal power of -15dBm, and the maximum signal power that the signal source can transmit is 11dBm. It is known that the limit value of the link budget is 26dBm. It is also known that the standing wave ratio of the single-pole double-throw switch is 1.2, the standing wave ratio of the single-pole three-throw switch and the single-pole five-throw switch is 1.3, the insertion loss of the coupler is 2.5dB, and the attenuation value of the internal RF cable is 2.88dB. Based on these values, it can be calculated that the link loss of the interference signal after passing through the internal line of the platform is 19.02dB, which is much less than the limit value of 26dBm. Therefore, it can be judged that the designed test link can fully meet the test requirements of the three test cases at the same time.

[0133] It can be seen from the above three test cases that the blocking tests of base stations and repeaters require that two RF signals be coupled through a coupler and input into the RF interfaces of the two types of equipment. Therefore, the blocking of base stations and repeaters can be fully reused through the link through the coupler through-end and coupled end for testing. The gain flatness of the converter on the satellite earth station can also be tested through the line through the coupler through-end, which not only achieves the purpose of multiplexing links without adding RF devices and RF cables, but also meets the link budget.

[0134] It should be understood that in the various embodiments of this document, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this document.

[0135] It should also be understood that in the embodiments of this article, the term "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0136] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this article.

[0137] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0138] In the several embodiments provided herein, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be electrical, mechanical or other forms of connection.

[0139] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this article.

[0140] In addition, each functional unit in each embodiment of this invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

[0141] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this article is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of this article. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0142] Specific embodiments are used in this article to illustrate the principles and implementation methods of this article. The description of the above embodiments is only used to help understand the methods and core ideas of this article. At the same time, for general technicians in this field, according to the ideas of this article, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on this article.

Claims

1. A universal network equipment radio frequency test system, characterized in that: include: At least three load output ports, a dual-channel signal source port, a first single-channel signal source port, a second single-channel signal source port, a control unit and a coupling unit; the control unit includes a plurality of digital switches, and the coupling unit includes a plurality of couplers; The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are used to receive signals from a signal source; The dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port are all connected to the at least three load output ports through the coupling unit and the control unit; The coupling unit is used to couple and transmit a signal received by at least one signal source port to the at least one load output port; The control unit is used to respond to the control instruction and switch the connection lines between the dual-channel signal source port, the first single-channel signal source port and the second single-channel signal source port and the at least three load output ports; The at least three load output ports are used to send the signal source to the station to be tested; The dual-channel signal source port includes a first dual-signal source port and a second dual-signal source port; The first dual signal source port is connected to one end of a twelfth digital switch; The other end of the twelfth digital switch is respectively connected to one end of the tenth digital switch, the second coupler and the third coupler; The second coupler and the third coupler are respectively connected to one end of the tenth digital switch; The other end of the tenth digital switch is connected to one end of the eighth digital switch; The other end of the eighth digital switch is connected to one end of the ninth digital switch; The second dual signal source port is connected to one end of a 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; The other end of the ninth digital switch is connected to the first load output port, the second load output port and the third load output port respectively.

2. The universal network equipment radio frequency test system according to claim 1, characterized in that: The first single-channel signal source port is connected to one end of a fifth digital switch; The other end of the fifth digital switch is connected to the fourth coupler and the sixth coupler respectively; The sixth coupler is connected to one end of the eighth digital switch.

3. The universal network equipment radio frequency testing system according to claim 2, characterized in that: The second single-channel signal source port is connected to one end of a sixth digital switch; The other end of the sixth digital switch is connected to the sixth coupler and the fifth coupler respectively.

4. The universal network equipment radio frequency testing system according to claim 1, characterized in that: The first load output port, the second load output port and the third load output port each include an output port and a load port; The other end of the ninth digital switch is connected to one end of the second digital switch, the third digital switch and the fourth digital switch respectively; The other end of the second digital switch is connected to the first output port and the first load port respectively; The other end of the third digital switch is connected to the second output port and the second load port respectively; The other end of the fourth digital switch is connected to the third output port and the third load port respectively.

5. The universal network equipment radio frequency testing system according to claim 1, characterized in that: Also includes a spectrum analysis port and an attenuator output port; The attenuator output port is used to receive the signal source processed by the station to be tested; The spectrum analysis port is connected to the attenuator output port through the control unit and the coupling unit, and is used to connect the signal source processed by the station to be tested to the spectrum analyzer.

6. The universal network equipment radio frequency testing system according to claim 5, characterized in that: The spectrum analysis port is connected to one end of the eleventh digital switch; The other end of the eleventh digital switch is respectively connected to one end of the seventh digital switch tube and the first coupler; The first coupler is respectively connected to the twelfth digital switch unit and one end of the seventh digital switch tube; The other end of the seventh digital switch tube is connected to the attenuator output port.

7. The universal network equipment radio frequency testing system according to claim 6, characterized in that: Also included is a filter output port; The filter output port is connected to the other end of the eleventh digital switch.

8. The universal network equipment radio frequency testing system according to claim 2, characterized in that: Also included is an attenuator input port; The attenuator input port includes an N-mode port and a 2.92mm mode port; The N-mode port and the 2.92 mm mode port are both connected to one end of the first digital switch, and the other end of the first digital switch is connected to one end of the eighth digital switch.

9. The universal network equipment radio frequency testing system according to claim 2, characterized in that: Also included is a filter input port; The filter input port is connected to one end of the eighth digital switch.

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