CN112532274B - Radio frequency switch assembly and control method thereof, radio frequency test equipment and system thereof - Google Patents
Radio frequency switch assembly and control method thereof, radio frequency test equipment and system thereof Download PDFInfo
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- CN112532274B CN112532274B CN202011396518.3A CN202011396518A CN112532274B CN 112532274 B CN112532274 B CN 112532274B CN 202011396518 A CN202011396518 A CN 202011396518A CN 112532274 B CN112532274 B CN 112532274B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the application relates to a radio frequency switch assembly and a control method thereof, radio frequency test equipment and a system thereof, wherein the control method of the radio frequency switch assembly comprises the following steps: receiving a control instruction input from the outside; switching the closed state of the paths of the first switch and the second switch according to a control instruction, wherein the radio frequency switch assembly comprises a plurality of first switches and a plurality of second switches, the first end of each first switch is respectively used for being correspondingly connected with one radio frequency point to be tested, the first end of each second switch is respectively used for being correspondingly connected with one test port, and the second ends of each first switch are respectively correspondingly connected with one second end of each second switch one by one; and acquiring the switched on-state information of the radio frequency switch assembly, and when the on-state information is not matched with the control instruction, continuously executing the step of receiving the externally input control instruction. Based on the special radio frequency switch assembly and the control method thereof, the radio frequency test process of the radio frequency equipment can be greatly simplified, and the test efficiency is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of radio frequency testing, in particular to a radio frequency switch assembly and a control method thereof, radio frequency testing equipment and a system thereof.
Background
Nowadays, with the continuous development of the radio frequency equipment industry, when radio frequency equipment such as a mobile phone and the like is tested, a reserved test socket can be connected with a test instrument according to the channel design of an antenna of the radio frequency equipment so as to perform radio frequency conduction test. With the updating of 5G mobile phones, the design of the radio frequency system is more and more complex, and correspondingly, the test mode is more and more complex, so that the test flow is more complex, and the test efficiency is insufficient.
Disclosure of Invention
The embodiment of the application provides a radio frequency switch assembly, a control method thereof, radio frequency testing equipment and a system thereof, which can simplify the radio frequency testing process of the radio frequency equipment and improve the testing efficiency.
A method of controlling a radio frequency switch assembly, comprising:
receiving a control instruction input from the outside;
switching the closed state of the paths of a first switch and a second switch according to the control instruction, wherein the radio frequency switch assembly comprises a plurality of first switches and a plurality of second switches, the first end of each first switch is respectively used for being correspondingly connected with a radio frequency point to be tested, the first end of each second switch is respectively used for being correspondingly connected with a test port, and the second end of each first switch is respectively connected with one second end of each second switch in a one-to-one correspondence manner;
and acquiring the switched on-state information of the radio frequency switch assembly, and when the on-state information is not matched with the control instruction, continuously executing the step of receiving the externally input control instruction.
A radio frequency switch assembly comprising:
the first switches comprise a first end and a plurality of second ends, the first end of each first switch is respectively used for being correspondingly connected with one radio frequency point to be tested, and the first switches are used for selectively conducting a radio frequency path between the corresponding radio frequency point to be tested and at least one second end;
the first ends of the second switches are respectively used for being correspondingly connected with one test port, and the second switches are used for selectively conducting a radio frequency path between the corresponding test port and at least one second end;
and the second ends of the first switches are respectively connected with one second end of each second switch in a one-to-one correspondence manner.
A radio frequency test device, comprising:
the radio frequency switch assembly as described above;
and the switch control module is respectively connected with a first switch and a second switch in the radio frequency switch assembly and used for controlling the closed state information of the first switch and the second switch according to an externally input control instruction so as to selectively conduct a radio frequency path between the frequency point to be tested and the test port.
A radio frequency test system, comprising:
the radio frequency test equipment as described above;
the radio frequency equipment is configured with a plurality of to-be-tested emission frequency points which are respectively connected with the first ends of a plurality of first switches of the radio frequency test equipment in a one-to-one correspondence manner;
and the integrated test equipment is configured with a plurality of test ports, and the plurality of test ports are respectively connected with the first ends of the plurality of second switches of the radio frequency test equipment in a one-to-one correspondence manner.
The radio frequency switch assembly, the control method thereof, the radio frequency test equipment and the system thereof, wherein the control method of the radio frequency switch assembly comprises the following steps: receiving a control instruction input from the outside; switching the closed state of the paths of a first switch and a second switch according to the control instruction, wherein the radio frequency switch assembly comprises a plurality of first switches and a plurality of second switches, the first end of each first switch is respectively used for being correspondingly connected with a radio frequency point to be tested, the first end of each second switch is respectively used for being correspondingly connected with a test port, and the second end of each first switch is respectively connected with one second end of each second switch in a one-to-one correspondence manner; and acquiring the switched closing state information of the radio frequency switch assembly, and when the closing state information is not matched with the control instruction, continuously executing the step of receiving the externally input control instruction. Based on the special radio frequency switch assembly and the control method thereof, when a single radio frequency device is continuously tested for various different conduction performances, the test wires between the radio frequency device and the comprehensive testing device do not need to be manually switched, so that the radio frequency test flow of the radio frequency device can be greatly simplified, and the test efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating an application scenario of a control method of a radio frequency switch assembly according to an embodiment;
FIG. 2 is a flowchart illustrating a method for controlling the RF switch assembly according to one embodiment;
FIG. 3 is a block diagram of an embodiment of an RF switch assembly;
FIG. 4 is a second flowchart illustrating a method for controlling the RF switch assembly according to an embodiment;
FIG. 5 is a schematic diagram of an embodiment of an RF switch assembly with a wrong number of closed vias;
FIG. 6 is a third flowchart illustrating a method for controlling the RF switch assembly according to an embodiment;
FIG. 7 is a schematic diagram illustrating that a closed path of a first switch does not correspond to a closed path of a second switch according to an embodiment;
FIG. 8 is a fourth flowchart illustrating a method of controlling the RF switch assembly according to one embodiment;
FIG. 9 is a fifth flowchart of a method for controlling the RF switch assembly according to one embodiment;
FIG. 10 is a sixth flowchart of a method for controlling the RF switch assembly according to one embodiment;
FIG. 11 is a second block diagram of the RF switch assembly according to an embodiment;
FIG. 12 is a block diagram of an embodiment of an RF test apparatus;
FIG. 13 is a block diagram illustrating an internal structure of a switch control module according to an embodiment;
fig. 14 is a block diagram of an rf testing system according to an embodiment.
Element number description:
the radio frequency switch assembly: 10; a first switch: 100, respectively; the test emission frequency point to be tested: 110; a second switch: 200 of a carrier; testing port: 210; the switch control module group: 20; radio frequency equipment: 30, of a nitrogen-containing gas; comprehensive equipment: 40.
Detailed Description
To facilitate an understanding of the embodiments of the present application, the embodiments of the present application will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. The embodiments of the present application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application belong. The terminology used herein in the description of the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first switch may be referred to as a second switch, and similarly, a second switch may be referred to as a first switch, without departing from the scope of the present application. The first switch and the second switch are both switches, but they are not the same switch.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.
Fig. 1 is a schematic diagram of an application scenario of a control method of a radio frequency switch assembly according to an embodiment. As shown in fig. 1, the application scenario includes a radio frequency switch assembly 10, a switch control module 20, a radio frequency device 30, and an integrated device 40. The radio frequency device 30 may be any device having a wireless communication function, such as a mobile phone, a tablet computer, an intelligent bracelet, a personal digital assistant, and a point of sale (POS) device. The rf module may be any circuit, chip or device provided in the rf device 30 and having an rf signal For wireless Communication, such as a GPS (Global Positioning System) module, a WiFi module, a bluetooth module, a GSM (Global System For Mobile Communications) module, and an NFC (Near Field Communication) module. The radio frequency module can be arranged independently of the baseband chip or integrated with the baseband chip. The integrated test device 40 may be a wireless communication test platform, which may also be referred to as an integrated tester, and the integrated test device 40 is configured with a plurality of test ports 210 to support testing the conduction performance of radio frequency signals of different systems and different frequency bands. When conducting a conduction test, the rf switch assembly 10 is respectively connected to the rf device 30 and the integrated device 40 to turn on or off an rf path between the rf device 30 and the integrated device 40, and the switch control module 20 is connected to the rf switch assembly 10 to control on and off states of the rf switch assembly 10. The control method of the rf switch assembly according to the embodiments of the present application is applied to the switch control module 20 to control the rf switch assembly 10.
Fig. 2 is a flowchart illustrating a method for controlling an rf switch assembly according to an embodiment, and referring to fig. 2, the method for controlling an rf switch assembly according to the embodiment includes steps 202 to 206.
The externally input control instruction refers to a control instruction input by a user through a terminal module of the switch control module 20, the terminal module may be, but is not limited to, a computer, a tablet computer, and the like, the terminal module is configured with test software, and the user can perform a test by inputting the control instruction in the test software.
For example, the user may select a target closing state of the radio frequency switch assembly 10 as a control instruction to perform a test, that is, the user manually selects a switch and a path to be closed so as to control the radio frequency switch assembly 10. For another example, the user may also select one or more test items to be executed for testing, and the terminal module is pre-configured with a target closed state of the radio frequency switch assembly 10 corresponding to each test item, and the terminal module may automatically match the corresponding target closed state according to the control instruction. For the automatic method, the user may also configure a new test item and a target closed state corresponding thereto in the terminal module to expand the usage scenario and functions of the radio frequency switch assembly 10.
It can be understood that the manual method has stronger control flexibility, and for a novel radio frequency device 30 or a test item, a user can flexibly set a target closed state according to the test to be executed, so that a more comprehensive and accurate conduction performance test is realized. The automatic method can effectively avoid errors caused by artificial reasons when a user manually inputs a target closing state, so that the switching reliability and accuracy are improved, and when the user selects a plurality of test items, the radio frequency switch assembly 10 can be controlled to automatically switch to the target closing state corresponding to the next test item after completing one test item, so that the switching efficiency of the radio frequency switch assembly 10 is further improved, and the test efficiency of the radio frequency test equipment is further improved.
And step 204, switching the closed state of the paths of the first switch 100 and the second switch 200 according to the control instruction.
Fig. 3 is a structural block diagram of an rf switch assembly 10 according to an embodiment, and referring to fig. 3, in this embodiment, the rf switch assembly 10 includes a plurality of first switches 100 and a plurality of second switches 200, a first end of each first switch 100 is respectively configured to be correspondingly connected to a radio frequency point 110 to be tested, a first end of each second switch 200 is respectively configured to be correspondingly connected to a test port 210, and a second end of each first switch 100 is respectively connected to a second end of each second switch 200 in a one-to-one correspondence manner. It should be noted that, in the embodiment shown in fig. 3, the rf switch assembly 10 includes a plurality of traces, each trace is used for conducting a second end of a first switch 100 and a second end of a second switch 200, although not shown in fig. 3, the traces are not conducted and are electrically isolated from each other, so as to ensure reliability of the rf path. In other embodiments, the traces are also not conductive and are electrically isolated from each other, which will not be described in further detail in other embodiments.
Specifically, switching the path closed state of the first switch 100 and the second switch 200 means turning on the paths of the first switch 100 and the second switch 200 corresponding to the control command and keeping the remaining paths off. When the closed states of the first switch 100 and the second switch 200 are correct, the frequency point 110 to be tested may be connected to the test port 210 through the closed path of the first switch 100, the routing between the two switches, and the closed path of the second switch 200, so as to perform a conduction performance test.
Further, each switch is provided with a corresponding number, specifically, the first switches 100 are respectively numbered as T1, T2, and T3 …, and the second switches 200 are respectively numbered as S1, S2, and S3 …. When conducting performance testing, according to specific testing requirements, only a part of the first switches 100 may be connected to the corresponding rf points 110 to be tested, and the rest of the first switches 100 are suspended, and similarly, only a part of the second switches 200 may be connected to the corresponding testing ports 210, and the rest of the second switches 200 are suspended. Still further, the number of the second terminals of each first switch 100 may be the same as the number of the second switches 200, or a greater number of second terminals may be configured for the first switches 100 to be used as spare pins.
The closed state information includes closed states of all the first switches 100 and all the second switches 200, and it can be understood that if the closed state information does not match the control instruction, it indicates that the currently switched closed state is different from the target closed state, then the radio frequency point to be tested 110 cannot be effectively tested. Therefore, it is necessary to re-receive the control command and switch the path closed states of the first switch 100 and the second switch 200 to ensure the accuracy of the test result.
Specifically, corresponding to the manual method, the mismatch between the closing state information and the control instruction may be caused by a user input error, or may be caused by a signal transmission error in the switching process of the radio frequency switch assembly 10, so that when the closing state information is not matched with the control instruction, the terminal module may prompt the user to re-input the control instruction on the interface of the test software, for example, a prompt box "please re-input the control instruction" may be popped up to prompt the user to input the control instruction in time.
Corresponding to the automatic method, since the operation of controlling the radio frequency switch assembly 10 is automatically generated by the terminal module according to the test item, the problem that the closed state information is not matched with the control instruction due to the user input error does not occur, that is, the problem is generally caused by the signal transmission error in the switching process of the radio frequency switch assembly 10, when the closed state information is not matched with the control instruction, the switch control module 20 may not prompt the user to re-output, but continue to re-switch the closed states of the paths of the first switch 100 and the second switch 200 based on the control instruction input by the user last time, thereby effectively improving the efficiency and speed of the control method of the radio frequency switch assembly.
In this embodiment, based on the special rf switch assembly 10 and the control method thereof, through the above steps 202 to 206, when a single rf device 30 is continuously tested for various different conduction performances, the switch logic can be quickly controlled by the test software in the terminal module as required, so as to solve the problem that multiple paths of test signals share a test path, and a user does not need to manually switch the test wires connected between the rf device 30 and the integrated device 40, thereby greatly simplifying the rf test procedure of the rf device 30 and improving the test efficiency. Moreover, the loss of the connection test wire can be effectively reduced, and the repeated plugging damage to the to-be-tested radio frequency point 110 and the test port 210 can be reduced.
Fig. 4 is a second flowchart of a control method of the rf switch assembly according to an embodiment, and referring to fig. 4, in this embodiment, the control method of the rf switch assembly may include steps 402 to 410.
and step 404, switching the closed state of the paths of the first switch 100 and the second switch 200 according to the control command.
It is understood that the implementation of steps 402 to 404 is the same as the implementation of steps 202 to 204 in the embodiment of fig. 2, and the description thereof is omitted here.
Specifically, fig. 5 is a schematic diagram of the rf switch assembly 10 with an erroneous closed number of paths according to an embodiment, in the embodiment shown in fig. 5, T2, T3, T4, T6, and T8 in the first switch 100 have a closed path, that is, the closed number of the first path is 5. The second path closing number of the second switch 200 is a total path closing number of all the second switches 200, and specifically, in the embodiment shown in fig. 5, each of S1, S2, S3, and S4 in the second switch 200 has one path closed, that is, the second path closing number is 4.
Specifically, with reference to fig. 5, if the first path closing number is not equal to the second path closing number, the radio frequency paths corresponding to each other cannot be formed between the multiple radio frequency points to be tested 110 and the multiple test ports 210, and a correct test result cannot be obtained, so that the control instruction input from the outside needs to be received again, and the radio frequency switch assembly 10 needs to be switched again according to the received control instruction, thereby ensuring the accuracy of the test result.
In this embodiment, the closed state of the radio frequency switch assembly 10 after switching can be determined in time by comparing the first path closed number with the second path closed number, and the user does not need to control again when finding that the test result is wrong, so that the accuracy and flexibility of the control method of the radio frequency switch assembly are effectively improved.
Further, with continued reference to fig. 4, the method for controlling the rf switch assembly may further include a step 412 of obtaining a line loss of the rf switch assembly 10 according to the first path closing number and the second path closing number. Specifically, the line loss is an important test parameter in the conductivity test, however, in the prior art, a test wire is usually used to connect the radio frequency point 110 to be tested and the test port 210, and the line loss characteristic of the test wire changes along with the material, diameter, length and other parameters of the wire, and even the service life of the test wire may affect the line loss characteristic thereof, so that by using the conventional test method, the line loss on each radio frequency path cannot be accurately evaluated without setting additional test equipment.
However, in this embodiment, the radio frequency switch assembly 10 is adopted to switch the test paths, and since the stability and reliability of the radio frequency switch assembly 10 are generally superior to those of a test wire, the line loss on each radio frequency path of the radio frequency switch assembly 10 can be obtained in advance and set in the switch control module 20, and the test software can directly obtain the line loss on each test path according to the stored data, so that the test efficiency and convenience are greatly improved. Specifically, the step of obtaining the line loss on each radio frequency path of the radio frequency switch assembly 10 in advance may be implemented by a calculation method, for example, if the internal closing number of the first switch 100 in the radio frequency path is M, and the internal closing number of the first switch 100 is N, the line loss is 10lg (M × N), where the internal closing number refers to the number of paths closed in a single switch. It will be appreciated that as the number of internal closures of a single switch varies, the switch behaves as a variable multipath power divider, and the insertion loss will vary, so that the line loss on the rf path can be more accurately calculated from the number of internal closures.
Fig. 6 is a third flowchart of a control method of an rf switch device according to an embodiment, and referring to fig. 6, in this embodiment, the control method of the rf switch device may include steps 602 to 608.
It is understood that the implementation of steps 602 to 606 is the same as the implementation of steps 402 to 406 in the embodiment of fig. 4, and the description thereof is omitted here.
And step 408, when the closed path of the first switch 100 does not correspond to the closed path of the second switch 200, continuing to execute the step of receiving the externally input control command.
Specifically, if only the first path closing number and the second path closing number are compared in the embodiment of fig. 4, there is a risk that a path error occurs in which the path closing number is correct but the actual path is closed. Therefore, in the present embodiment, the corresponding situation of the closed path of the first switch 100 and the closed path of the second switch 200 is actually compared to determine whether the switched closed state of the rf switch assembly 10 is the target closed state. The closed path of the first switch 100 and the closed path of the second switch 200 correspond to each other, that is, the closed path of the first switch 100 and the closed path of the second switch 200 may be used to commonly conduct a path between one frequency point 110 to be tested and one test port 210.
Specifically, fig. 7 is a schematic diagram illustrating that the closed path of the first switch 100 and the closed path of the second switch 200 do not correspond to each other according to an embodiment, referring to fig. 7, in the embodiment, the number of closed first paths is 5, the number of closed second paths is also 5, the first switch T1 corresponds to the closed path of the second switch S1, the first switch T2 corresponds to the closed path of the second switch S5, the first switch T4 corresponds to the closed path of the second switch S2, the first switch T6 corresponds to the closed path of the second switch S2, but the first switch T5 does not correspond to the closed path of the second switch S4, so that the test port 210 connected to the second switch S4 cannot be connected to the test rf spot 110 to be tested corresponding to the first switch T5, that is, the test rf spot cannot be tested. At this time, it is necessary to continue to receive the control command input from the outside and switch the closed states of the first switch 100 and the second switch 200 according to the control command, so as to control the rf switch assembly 10 to perform accurate switching.
Fig. 8 is a fourth flowchart of a control method of an rf switch assembly according to an embodiment, and referring to fig. 8, in this embodiment, the control method of the rf switch assembly may include steps 802 to 608.
it is understood that the implementation of steps 802 to 804 is the same as the implementation of steps 602 to 604 in the embodiment of fig. 6, and the description thereof is omitted here.
Specifically, the feedback signal is sent by the rf switch assembly 10 and is used to carry the closed state information after the rf switch assembly 10 is switched. The feedback signal may be actively sent by the rf switch assembly 10 after completing the switching, or sent by the rf switch assembly 10 in response to an external signal, and the triggering condition for sending the feedback signal is not specifically limited in this embodiment.
Further, in some embodiments, the switch control module 20 may store the closing state information received next time, and when switching next time, compare the stored closing state information with a target closing state of the next switching, and send a control signal only to the first switch 100 and/or the second switch 200 whose closing states are different, so as to control the first switch 100 and/or the second switch 200 to switch, so as to reduce the control signal that needs to be sent, thereby reducing the risk of sending an error in the transmission process of the signal, and also effectively reducing the overall power consumption of the radio frequency device 30, and extending the standby time.
And 808, when the closing state information does not match with the control instruction, continuing to execute the step of receiving the externally input control instruction.
Fig. 9 is a fifth flowchart of a control method of an rf switch assembly according to an embodiment, and referring to fig. 9, in this embodiment, the control method of the rf switch assembly may include steps 902 to 910.
and step 910, when the closing state information does not match with the control instruction, continuing to execute the step of receiving the externally input control instruction.
It is to be understood that the implementation of steps 902 to 904 is the same as the implementation of steps 802 to 804 in the embodiment of fig. 8, and the implementation of steps 908 to 910 is the same as the implementation of steps 806 to 808 in the embodiment of fig. 8, which is not repeated herein. In step 906 of this embodiment, the switch control module 20 controls the rf switch assembly 10 to send a feedback signal through the state detection signal, so as to obtain the closing state information. Further, the switch control module 20 may send the state detection signal at a preset time interval after sending the switching state of the radio frequency switch assembly 10, so as to ensure that the radio frequency switch assembly 10 has completed switching, avoid an error in the closed state information carried by the feedback signal, and improve the accuracy and reliability of the control method. Still further, the preset duration of the interval may be specifically set according to the response speed of the first switch 100 and/or the second switch 200 to achieve a balance between reliability and switching efficiency.
In other embodiments, the state detection signal may also be sent by other modules in the radio frequency device 30, and when the other modules send the state detection signal, signal synchronization with the switch control module 20 and/or the radio frequency switch assembly 10 needs to be achieved through a synchronization signal, so as to avoid a transmission time error of the state detection signal, thereby improving accuracy of the feedback signal.
Fig. 10 is a sixth flowchart of a control method of an rf switch assembly according to an embodiment, and referring to fig. 10, the control method of the rf switch assembly according to the present embodiment includes steps 1002 to 1012.
It can be understood that, reference may be made to the foregoing embodiments for implementation of each step in this embodiment, and details are not repeated here, and the radio frequency test flow of the radio frequency device 30 can be greatly simplified by the control method of the radio frequency switch assembly in this embodiment, so as to improve the test efficiency.
It should be understood that, although the individual steps in the flowcharts of fig. 2, 4, 6, 8, 9 and 10 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least some of the steps in fig. 2, 4, 6, 8, 9, and 10 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the sub-steps or stages of other steps.
Fig. 11 is a second block diagram of the structure of an embodiment, fig. 11 shows an example of the rf switch assembly 10 corresponding to the closed paths of the first switch and the second switch, and referring to fig. 11, the rf switch assembly 10 includes a plurality of first switches 100 and a plurality of second switches 200.
The first switch 100 includes a first end and a plurality of second ends, the first end of each first switch 100 is respectively used for being correspondingly connected with one radio frequency point to be tested 110, and the first switch 100 is used for selectively conducting a radio frequency path between the corresponding radio frequency point to be tested 110 and at least one second end. The second switch 200 includes a first terminal and a plurality of second terminals, the first terminal of each second switch 200 is respectively used for being correspondingly connected with one test port 210, and the second switch 200 is used for selectively conducting a radio frequency path between the corresponding test port 210 and at least one of the second terminals. Wherein, each second terminal of the first switch 100 is connected to one second terminal of each second switch 200 in a one-to-one correspondence manner.
The radio frequency switch assembly 10 of the present embodiment can adapt to a more complex conduction test scenario, implement interconnection between any test port 210 and any radio frequency point 110 to be tested, and support a many-to-one connection mode between two ends. In addition, in this embodiment, the power of a plurality of points on the side of the radio frequency point 110 to be tested can be randomly and evenly distributed to the side of the test port 210, and the radio frequency switch assembly 10 can output at least one of the received radio frequency signals as at least two radio frequency signals, so that the test equipment can simultaneously perform different tests on the same radio frequency signal, thereby greatly improving the radio frequency test efficiency compared with the conventional single-path radio frequency test process. It is understood that, the method for using the radio frequency switch assembly 10 of the present embodiment may refer to the foregoing method embodiments, and will not be described herein again.
In one embodiment, the rf switch assembly 10 includes a first number of the first switches 100 and a second number of the second switches 200, each of the first switches 100 includes a first terminal and a second terminal, and each of the second switches 200 includes a first terminal and a second terminal. Based on the setting method, the first switch 100 and the second switch 200 can be efficiently utilized, the waste of ports is avoided, the integration level of the radio frequency switch assembly 10 can be improved, and the volume of the radio frequency switch assembly 10 is reduced.
In one embodiment, the rf switch assembly 10 includes eight first switches 100 and five second switches 200, each first switch 100 includes a first terminal and five second terminals, and each second switch 200 includes a first terminal and eight second terminals. According to the 4 x 4MIMO antenna scheme, which is common and generally applicable nowadays, the present solution can accommodate test point connections of eight antenna schemes, such as 4G 4 x 4MIMO and 5G 4 x 4MIMO, and is compatible with the scheme with fewer antennas. Furthermore, a set of four-port testing schemes, such as 4 × 4MIMO, can be accommodated in the integrated tester testing port 210, and an additional spare port is provided, which can be used for performance testing of E-UTRAN new radio-dual connection, so that the rf switch assembly 10 of the present embodiment has greater applicability in a multi-antenna simultaneous testing scenario than the prior art. Especially, under the condition that the design of the radio frequency circuit of the current 5G mobile phone is complicated, the radio frequency switch assembly 10 of the embodiment can still be compatible with the conduction test and calibration of a complex connection mode, so that the test efficiency is improved, and the test cost is reduced.
Fig. 12 is a block diagram of a radio frequency testing apparatus according to an embodiment, and referring to fig. 12, the radio frequency testing apparatus includes a switch control module 20 and the radio frequency switch assembly 10 as described above, where the switch control module 20 is respectively connected to a first switch 100 and a second switch 200 in the radio frequency switch assembly 10, and is configured to control closing state information of the first switch 100 and the second switch 200 according to an externally input control instruction, so as to selectively turn on a radio frequency path between the trial injection frequency point 110 to be tested and the testing port 210. It is understood that the method for controlling the rf switch assembly 10 by the switch control module 20 can refer to the foregoing method embodiments, and will not be described herein again.
Further, the switch control module 20 includes a terminal module and a switch control module, the terminal module is provided with a test software, a user can input a control instruction through the test software, and the switch control module can transmit a control signal corresponding to the control instruction to the radio frequency switch assembly 10 to control the radio frequency switch assembly 10 to switch. It should be understood that the division of the modules in the radio frequency test device is only used for illustration, and in other embodiments, the radio frequency test device may be divided into different modules as needed to complete all or part of the functions of the radio frequency test device. The modules in the radio frequency test device may be implemented wholly or partially by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
Fig. 13 is a block diagram illustrating an internal structure of the switch control module 20 according to an embodiment. As shown in fig. 13, the switch control module 20 includes a processor and a memory connected by a system bus. Wherein the processor is used to provide computing and control capabilities to support the operation of the entire switch control module 20. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor for implementing a control method of a radio frequency switch assembly provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs in the non-volatile storage medium. The switch control module 20 may be any terminal device such as a computer, a tablet computer, and a vehicle-mounted computer.
The implementation of each module in the radio frequency test device provided in the embodiments of the present application may be in the form of a computer program. The computer program may be run on a terminal or a server. Program modules formed by the computer program may be stored on the memory of the switch control module 20. Which when executed by a processor, performs the steps of the method described in the embodiments of the present application.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of a method of controlling a radio frequency switch assembly.
Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
Fig. 14 is a block diagram of a structure of an rf testing system according to an embodiment, and referring to fig. 14, in this embodiment, the rf testing system includes the rf device 30, the integrated device 40, and the rf testing device as described above. The radio frequency device 30 is configured with a plurality of frequency points 110 to be tested, and the plurality of frequency points 110 to be tested are respectively connected with the first ends of the plurality of first switches 100 of the radio frequency test device in a one-to-one correspondence manner. The integrated device 40 is configured with a plurality of test ports 210, and the plurality of test ports 210 are respectively connected to the first ends of the plurality of second switches 200 of the rf test device in a one-to-one correspondence. The radio frequency test system of the embodiment is based on the radio frequency test equipment, and has the advantages of high test efficiency and high reliability.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.
Claims (11)
1. A method of controlling a radio frequency switch assembly, comprising:
receiving a control instruction input from the outside;
switching the closed state of the paths of a first switch and a second switch according to the control instruction, wherein the radio frequency switch assembly comprises a plurality of first switches and a plurality of second switches, the first end of each first switch is respectively used for being correspondingly connected with a radio frequency point to be tested, the first end of each second switch is respectively used for being correspondingly connected with a test port, and the second end of each first switch is respectively connected with one second end of each second switch in a one-to-one correspondence manner;
acquiring switched on-state information of the radio frequency switch assembly, and when the on-state information is not matched with the control instruction, continuing to execute the step of receiving the externally input control instruction;
when the closing state information does not match with the control instruction, the step of continuously executing the control instruction for receiving the external input comprises the following steps:
acquiring a first channel closing number of the first switch and a second channel closing number of the second switch according to the closing state information;
and when the first channel closed number is not equal to the second channel closed number, continuing to execute the step of receiving the control command input from the outside.
2. The control method according to claim 1, wherein when the closed state information does not match the control command, continuing to execute the step of receiving the externally input control command further comprises:
and when the closed path of the first switch does not correspond to the closed path of the second switch, continuing to execute the step of receiving the externally input control command.
3. The control method according to claim 1, characterized by further comprising:
and acquiring the line loss of the radio frequency switch component according to the first path closed number and the second path closed number.
4. The method of claim 1, wherein the obtaining the switched on state information of the rf switch assembly comprises:
and receiving a feedback signal carrying the closing state information to acquire the closing state information.
5. The control method according to claim 4, wherein before receiving the feedback signal carrying the closing state information, the method further comprises:
and sending a state detection signal to instruct the radio frequency switch component to send the feedback signal.
6. The control method of claim 1, wherein the control command comprises a target closed state of the radio frequency switch assembly.
7. A radio frequency switch assembly, comprising:
the first switches comprise a first end and a plurality of second ends, the first end of each first switch is respectively used for being correspondingly connected with one radio frequency point to be tested, and the first switches are used for selectively conducting a radio frequency path between the corresponding radio frequency point to be tested and at least one second end;
the first ends of the second switches are respectively used for being correspondingly connected with one test port, and the second switches are used for selectively conducting a radio frequency path between the corresponding test port and at least one second end;
the first switch and the second switch are configured to switch the closed state of the paths in response to an externally input control instruction, and when the first closed number of the paths of the first switch and the second closed number of the paths of the second switch are not equal, the closed state of the paths is continuously switched in response to the externally input control instruction.
8. The radio frequency switch assembly of claim 7, wherein the radio frequency switch assembly includes a first number of the first switches and a second number of the second switches, each of the first switches including a first terminal and a second terminal, and each of the second switches including a first terminal and a second terminal.
9. The rf switch assembly of claim 8, comprising eight of the first switches and five of the second switches, each of the first switches comprising a first terminal and five second terminals, and each of the second switches comprising a first terminal and eight second terminals.
10. A radio frequency test device, comprising:
the radio frequency switch assembly of any one of claims 7 to 9;
the switch control module is respectively connected with a first switch and a second switch in the radio frequency switch assembly, and is used for controlling the closed state information of the first switch and the second switch according to an externally input control instruction so as to selectively conduct a radio frequency path between the radio frequency point to be tested and the test port, acquiring the switched closed state information of the radio frequency switch assembly, acquiring the closed number of the first path of the first switch and the closed number of the second path of the second switch according to the closed state information, and continuously receiving the externally input control instruction when the closed number of the first path and the closed number of the second path are unequal.
11. A radio frequency test system, comprising:
the radio frequency test device of claim 10;
the radio frequency equipment is configured with a plurality of to-be-tested emission frequency points which are respectively connected with the first ends of a plurality of first switches of the radio frequency test equipment in a one-to-one correspondence manner;
and the integrated test equipment is configured with a plurality of test ports, and the plurality of test ports are respectively connected with the first ends of the plurality of second switches of the radio frequency test equipment in a one-to-one correspondence manner.
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| CN113167812B (en) * | 2021-03-26 | 2023-03-10 | 华为技术有限公司 | Signal switching control method, signal switching device, test system and platform |
| CN113630146B (en) * | 2021-07-09 | 2022-06-14 | 荣耀终端有限公司 | Line switching system and method for radio frequency conduction test |
| CN114257264B (en) * | 2021-12-15 | 2023-08-11 | 惠州Tcl移动通信有限公司 | Radio frequency antenna circuit, PCB and mobile terminal |
| CN114244451B (en) * | 2021-12-16 | 2024-05-10 | 深圳市广和通无线股份有限公司 | Radio frequency access test circuit, method, device and medium |
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