Method, device and storage medium for testing radio frequency performance of network equipment

Abstract

The present application provides a network equipment radio frequency performance test method, device and storage medium, comprising: a spectrum analyzer acquires an attenuation value of a radio frequency line; an interface box accesses at least one antenna port of a to-be-tested station; a control terminal sends a test case to the spectrum analyzer, the test case being used to instruct the spectrum analyzer to adjust a receiving mode and an analysis mode of a signal; the control terminal causes the to-be-tested station to send, through the interface box, downlink signals of a plurality of preset frequency bands to the spectrum analyzer; the spectrum analyzer receives and compensates the downlink signals according to the receiving mode and the attenuation value of the radio frequency line; the spectrum analyzer samples and analyzes the compensated downlink signals according to the analysis mode to obtain a test result corresponding to each preset frequency band; and the control terminal checks whether the test result meets a preset range to obtain a final result, thereby reducing repetitive operations of a tester, and the influence of human factors on the test result can be reduced through compensation of the attenuation value.

Description

Technical Field

[0001] The present invention relates to the technical field of base station testing, and in particular to a method, equipment and storage medium for testing radio frequency performance of network equipment. Background Art

[0002] Because each station under test has a different base station power rating, coverage type, number of antennas, and operating frequency band, testers must manually configure test parameters and connect the station, RF components, and test instruments repeatedly before each test. This process involves multiple disassembly of RF components, which can lead to loosening of device interfaces and power leakage, affecting test results and causing variations between testers. Therefore, this testing solution suffers from excessive repetitive operations and the potential for human interference with test results. Summary of the Invention

[0003] In response to the above-mentioned problems in the prior art, the purpose of this article is to provide a network equipment RF performance testing method, equipment and storage medium to solve the problems in the prior art of excessive repetitive operations and the presence of human factors interfering with test results.

[0004] In order to solve the above technical problems, the specific technical solutions of this article are as follows:

[0005] On the one hand, this document provides a method for testing the radio frequency performance of network equipment, which is applied to a control terminal, wherein the control terminal is connected to a signal generator, an interface box, and a spectrum analyzer via a switch and a radio frequency line, respectively. The method includes:

[0006] The spectrum analyzer obtains the attenuation value of the radio frequency line;

[0007] The interface box is connected to at least one antenna port of the station to be tested;

[0008] The control terminal sends a test case to the spectrum analyzer, wherein the test case is used to instruct the spectrum analyzer to adjust a signal receiving mode and an analysis mode;

[0009] The control terminal instructs the station to be tested to send downlink signals of several preset frequency bands to the spectrum analyzer through the interface box;

[0010] The spectrum analyzer receives and compensates the downlink signal according to the receiving mode and the attenuation value of the radio frequency line;

[0011] The spectrum analyzer samples and analyzes the compensated downlink signal according to the analysis method to obtain a test result corresponding to each preset frequency band;

[0012] The control terminal checks whether the test result meets a preset range, and if yes, obtains a final result according to the test result corresponding to each preset frequency band.

[0013] As an embodiment herein, the method for calculating the attenuation value of the radio frequency line comprises:

[0014] determining a test time according to the lowest frequency and the highest frequency in all preset frequency bands;

[0015] The signal generator sends a check signal to the spectrum analyzer through the interface box;

[0016] The spectrum analyzer samples the received check signal using the test time to obtain the attenuation values corresponding to a plurality of preset frequency bands;

[0017] determining a first variance between the attenuation values corresponding to all preset frequency bands;

[0018] If the first variance is less than a first reference value, the smallest attenuation value among the attenuation values corresponding to all preset frequency bands is taken as the attenuation value of the radio frequency line.

[0019] As an embodiment herein, the method for determining the test time according to the lowest frequency and the highest frequency in all preset frequency bands further comprises:

[0020] determining the test time according to the formula:

[0021] T C =(f max -f min )×10×0.001+2

[0022] wherein T C is the test time, f max is the highest frequency, and f min is the lowest frequency.

[0023] As an embodiment herein, the method for determining the first variance between the attenuation values corresponding to all preset frequency bands further comprises:

[0024] If the first variance is greater than the first reference value, the radio frequency line connection is prompted to be abnormal.

[0025] As an embodiment herein, the method for checking, by the control terminal, whether the test result meets a preset range comprises:

[0026] When the test case is a first type of case, the control terminal calculates the average value of the test results corresponding to all preset frequency bands;

[0027] The control terminal determines whether the average value is within a preset standard range, and if so, uses the average value as the final result.

[0028] As an embodiment of this invention, the control terminal verifies whether the test result meets a preset range, further comprising:

[0029] When the test case is a second type of test case, the control terminal calculates the variance of the test results corresponding to all preset frequency bands;

[0030] The control terminal determines whether the variances of the test results corresponding to the adjacent preset frequency bands are less than a preset variance range. If so, the maximum value among the test results corresponding to all the preset frequency bands is used as the final result.

[0031] As an embodiment of this invention, the method for generating a test case includes:

[0032] The control terminal obtains base station parameters and test parameters and generates several test cases;

[0033] The base station parameters include rated power and base station coverage type, and the test parameters include test frequency band and test mode.

[0034] As an embodiment of this article, it includes:

[0035] The interface box includes 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;

[0036] 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 signal generator; the load output port is connected to the station to be tested; and the interface box includes a plurality of couplers;

[0037] The dual-channel signal source port, the first single-channel signal source port, the second single-channel signal source port, the coupler and the line respectively form a plurality of test links;

[0038] The control terminal receives the test case and controls the coupler according to the test case to switch different test links.

[0039] On the other hand, this document also provides a computer device, including a memory, a processor, and a computer program stored in the memory and runnable on the processor, wherein when the processor executes the computer program, any one of the network device radio frequency performance testing methods described is implemented.

[0040] On the other hand, this document also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements any one of the network device radio frequency performance testing methods.

[0041] By adopting the above technical solution, the attenuation value of the RF line is obtained by the spectrum analyzer, so as to determine the loss caused by the RF line to the performance test; the spectrum analyzer samples and analyzes the compensated downlink signal according to the analysis method to obtain the test result corresponding to each preset frequency band, so as to compensate the test result and make the test result closer to the real result; the control terminal sends a test case to the spectrum analyzer, and the test case is used to instruct the spectrum analyzer to adjust the signal reception method and analysis method, so as to generate multiple test cases and use the test cases to test the base station; the control terminal verifies whether the test result meets the preset range. If so, the final result is obtained according to the test result corresponding to each preset frequency band, so as to verify whether the base station has an abnormality. In this article, after completing a test case, if no problem with the base station is detected, the test case is switched to complete the subsequent test, which reduces the repetitive operations of the tester, and by compensating the attenuation value, the influence of human factors on the interference of the test results can be reduced.

[0042] 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 provides detailed descriptions in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of this article or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of this article. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 This figure shows an overall system diagram of a method for testing radio frequency performance of network equipment according to an embodiment of the present invention;

[0045] Figure 2 shows a topological diagram of the interface box of the embodiment of this article;

[0046] Figure 3 A first schematic diagram of an interface box according to an embodiment of the present invention is shown;

[0047] Figure 4 A preferred schematic diagram of an interface box according to an embodiment of the present invention is shown;

[0048] Figure 5A step schematic diagram of a network equipment radio frequency performance test method according to an embodiment of the present application is shown.

[0049] Figure 6 A schematic diagram of an attenuation value calculation method according to an embodiment of the present application is shown.

[0050] Figure 7 A schematic diagram of a computer device according to an embodiment of the present application is shown.

[0051] Explanation of the drawing symbols:

[0052] 101, first coupler;

[0053] 102, second coupler;

[0054] 103, third coupler;

[0055] 104, fourth coupler;

[0056] 105, fifth coupler;

[0057] 106, sixth coupler;

[0058] 201, first digital switch;

[0059] 202, second digital switch;

[0060] 203, third digital switch;

[0061] 204, fourth digital switch;

[0062] 205, fifth digital switch;

[0063] 206, sixth digital switch;

[0064] 207, seventh digital switch;

[0065] 208, eighth digital switch;

[0066] 209, ninth digital switch;

[0067] 210, tenth digital switch;

[0068] 211, eleventh digital switch;

[0069] 212, twelfth digital switch;

[0070] 213, thirteenth digital switch;

[0071] 702, computer device;

[0072] 704, processor;

[0073] 706, memory;

[0074] 708, driving mechanism;

[0075] 710, input / output module;

[0076] 712. Input devices;

[0077] 714. Output device;

[0078] 716. Presentation equipment;

[0079] 718. Graphical User Interface;

[0080] 720, network interface;

[0081] 722, communication link;

[0082] 724. Communication bus. DETAILED DESCRIPTION

[0083] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of this document. Obviously, the embodiments described are only part of the embodiments of this document, not all of the embodiments. Based on the embodiments of this document, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this document.

[0084] It should be noted that the terms "first," "second," and the like in the specification and claims herein and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices.

[0085] like Figure 1 The overall system diagram of a network device RF performance testing method shown includes: a control terminal, a switch, a signal generator, an interface box and a spectrum analyzer; the control terminal is connected to the switch via an RF line, and the signal generator, interface box and spectrum analyzer are respectively connected to the switch via RF lines.

[0086] like Figure 2The topology diagram of the interface box shown includes: 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 terminal, and a coupling unit; the control terminal includes a plurality of digital switches, and the coupling unit includes a plurality of couplers;

[0087] 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;

[0088] 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 terminal;

[0089] 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;

[0090] The control terminal is configured to respond to a control instruction and switch connection lines between the dual-channel signal source port, the first single-channel signal source port, the second single-channel signal source port and the at least three load output ports;

[0091] The at least three load output ports are used to send the signal source to the station to be tested.

[0092] By adopting the above technical solution, multiple 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 lines through the control terminal, the coupling unit can couple multiple signals to obtain more types of test signals, and then obtain multiple test links, which are then sent to multiple output interfaces. Therefore, this interface box can generate multiple test links after being connected once, reducing the number of plug-ins and reducing the speed of interface aging.

[0093] When conducting a test, the tester can connect the dual-channel signal source port, the first single-channel signal source port, and the second single-channel signal source port to a signal source. In this article, the signal source can be a signal generator, a vector network analyzer, etc., which is not limited in this article. Through the control terminal, a coupled signal can be formed between the dual-channel signal source ports and sent 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 be coupled and sent 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 be coupled and sent 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 be coupled and sent 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 be coupled and sent to the load output port. In this way, the three signals can meet multiple test cases. When forming the coupled signal, multiple load signals can be added to the coupled signal through the three load output ports, further increasing the number of test cases and sending them to different stations to be tested.

[0094] In this article, the stations to be tested include base stations, repeaters and satellite earth stations.

[0095] 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.

[0096] In order to further illustrate the connection line between the signal source port and the output port, this article can provide a detailed schematic diagram of the coupler and the control terminal.

[0097] like Figure 3 A first schematic diagram of an interface box is shown, wherein the dual-channel signal source port includes a first dual-signal source port and a second dual-signal source port;

[0098] The first dual signal source port is connected to one end of the twelfth digital switch 212;

[0099] The other end of the twelfth digital switch 212 is connected to one end of the tenth digital switch 210, the second coupler 102 and the third coupler 103 respectively;

[0100] The second coupler 102 and the third coupler 103 are respectively connected to one end of the tenth digital switch 210;

[0101] The other end of the tenth digital switch 210 is connected to one end of the eighth digital switch 208;

[0102] The other end of the eighth digital switch 208 is connected with one end of the ninth digital switch 209;

[0103] The second dual-signal source port is connected with one end of the thirteenth digital switch 213;

[0104] The other end of the thirteenth digital switch 213 is connected with the second coupler 102, the fourth coupler 104 and the fifth coupler 105 respectively;

[0105] The fourth coupler 104 is connected with the third coupler 103;

[0106] The other end of the ninth digital switch 209 is connected with the first load output port, the second load output port and the third load output port respectively.

[0107] The first single-channel signal source port is connected with one end of the fifth digital switch 205;

[0108] The other end of the fifth digital switch 205 is connected with the fourth coupler 104 and the sixth coupler 106 respectively;

[0109] The sixth coupler 106 is connected with one end of the eighth digital switch 208.

[0110] The second single-channel signal source port is connected with one end of the sixth digital switch 206;

[0111] The other end of the sixth digital switch 206 is connected with the sixth coupler 106 and the fifth coupler 105 respectively.

[0112] 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 with signals, if the dual-channel signal source port generates coupling signals by itself, 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 are opened, and the rest of the digital switches are closed, then the coupling signals can be coupled and transmitted to the load output port.

[0113] 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 with 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 are opened, and the rest of the digital switches are closed, then the coupling signals can be coupled and transmitted to the load output port.

[0114] 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 a coupling signal, 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, so that the coupling signal can be coupled and transmitted to the load output port.

[0115] like Figure 4 The preferred schematic diagram of an interface box shown is shown. In order to increase the number of test cases, several different load ports can be added to the output end. 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.

[0116] 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;

[0117] The other end of the second digital switch 202 is connected to the first output port and the first load port respectively;

[0118] The other end of the third digital switch 203 is connected to the second output port and the second load port respectively;

[0119] The other end of the fourth digital switch 204 is connected to the third output port and the third load port respectively.

[0120] In order to facilitate the test personnel to test the return signal of the test station, this article can also receive the feedback signal of the test station, and can also connect to the spectrum analyzer to detect the signal returned by the test station.

[0121] Specifically, the embodiment of this article further includes a spectrum analysis port and an attenuator output port;

[0122] The attenuator output port is used to receive the signal source processed by the station to be tested;

[0123] The spectrum analysis port is connected to the attenuator output port through the control terminal and the coupling unit, and is used to connect the signal source processed by the station to be tested to the spectrum analyzer.

[0124] The spectrum analysis port is connected to one end of the eleventh digital switch 211;

[0125] The other end of the eleventh digital switch 211 is connected to one end of the seventh digital switch tube and the first coupler 101 respectively;

[0126] The first coupler 101 is connected to one end of the twelfth digital switch unit and the seventh digital switch tube respectively;

[0127] The other end of the seventh digital switch tube is connected to the attenuator output port.

[0128] As an embodiment of this article, it also includes a filter output port;

[0129] The filter output port is connected to the other end of the eleventh digital switch 211 .

[0130] As an embodiment of the present invention, an attenuator input port is also included;

[0131] The attenuator input port includes an N-mode port and a 2.92mm mode port;

[0132] The N-mode port and the 2.92mm 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 .

[0133] As an embodiment of this article, it also includes a filter input port;

[0134] The filter input port is connected to one end of the eighth digital switch unit.

[0135] 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;

[0136] 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.

[0137] The first coupler 101, the fifth coupler 105 and the sixth coupler 106 are all high-frequency couplers;

[0138] The second coupler 102 , the third coupler 103 , and the fourth coupler 104 are all low-frequency couplers.

[0139] For ease of explanation, in this document, the contacts of the switch can be named contact 1, contact 2, contact 3, and contact 4 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.

[0140] The blocking of the test base station is mainly tested by coupling two RF signals into one channel through a coupler and inputting it into the RF interface of the base station. The specific test link 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 channel 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. Finally, the RF signal is input into the RF interface of the base station through the first load output port for testing.

[0141] The test link 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, and the two signals are coupled into one 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 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, and the eleventh digital switch 211 is switched to 1 contact, forming a path with the spectrum analyzer port for testing.

[0142] To test the gain flatness of the upconverter on the satellite earth station while meeting the link budget and without adding RF devices and RF cables, the test link is designed as follows: the signal source is connected to the second single-channel signal source port via an RF cable, passes through the through-end of the fifth coupler 105, switches the eighth digital switch 208 to contact 2, the ninth digital switch 209 to contact 1, and the second digital switch 202 to contact 1, and inputs the RF signal to the input end of the upconverter on the satellite earth station through the first load output port. Finally, the output end of the upconverter on the satellite earth station is connected to the attenuator output port, the seventh digital switch 207 is switched to contact 1, and the eleventh digital switch 211 is switched to contact 1, forming a path with the spectrum analyzer port for testing.

[0143] After completing the test link design, calculate the link budget. This value determines whether the designed test link meets the standard requirements and is suitable for testing. The link budget for base station blocking is the most stringent. If the designed test link can meet the link budget for this test case, then the other two links will also meet it. According to the 3GPP 38.141-1 standard, the base station blocking test requires a single-tone interference signal with a signal power of -15dBm, and the maximum signal power that the signal source can transmit is 11dBm. This indicates that the link budget limit is 26dBm. Furthermore, the VSWR of the SPDT switch is 1.2, the VSWR of the SP3T switch and the SP5T switch is 1.3, the insertion loss of the coupler is 2.5dB, and the attenuation of the internal RF cable is 2.88dB. Based on these values, the link loss of the interference signal after passing through the platform's internal wiring is 19.02dB, which is far less than the 26dBm limit. Therefore, the designed test link fully meets the test requirements of all three test cases.

[0144] The three test cases above demonstrate that blocking tests for both base stations and repeaters require coupling two RF signals through a coupler and inputting them into the RF interfaces of the two devices. Therefore, blocking tests for base stations and repeaters can be fully reused, testing the link through the coupler's through-port and coupled-port. The gain flatness of the satellite earth station's upconverter can also be tested using a line through the coupler's through-port. This allows for link reuse without adding additional RF components and cables, while also meeting the link budget.

[0145] The existing solution is that testers first manually calibrate the link for different test items. Then, based on the base station's rated power, coverage type, number of ports, and operating frequency band, they manually configure the center frequency, test mode, line loss value, cell identification code, and terminal identification parameters of the current test case on the spectrum analyzer and vector signal source. They also manually select RF cables, attenuators, power splitters, and filters based on the operating frequency band, base station's rated power, and number of ports. Testers are required to record and judge the test results based on their experience.

[0146] Because each station under test has a different base station power rating, coverage type, number of antennas, and operating frequency band, testers must manually configure test parameters and connect the station, RF components, and test instruments repeatedly before each test. This process involves multiple disassembly of RF components, which can lead to loosening of device interfaces and power leakage, affecting test results and causing variations between testers. Therefore, this testing solution suffers from excessive repetitive operations and the potential for human interference with test results.

[0147] In order to solve the above problems, the embodiments of this article provide a method for testing the radio frequency performance of network equipment, which can solve the problems of excessive repetitive operations and human factors interfering with test results in the existing technology. Figure 5 This is a schematic diagram of the steps of a network equipment radio frequency performance test method provided in the embodiment of this article. This specification provides the method operation steps described in the embodiment or flowchart, but based on conventional or non-creative labor, more or fewer operation steps may be included. The order of steps listed in the embodiment is only one way of executing the steps among many steps, and does not represent the only execution order. When the actual system or device product is executed, it can be executed in the order or in parallel according to the method shown in the embodiment or the accompanying drawings. Specifically, Figure 5 As shown, the method may include:

[0148] Step 501: The spectrum analyzer obtains the attenuation value of the radio frequency line;

[0149] Step 502: The interface box is connected to at least one antenna port of the station to be tested;

[0150] Step 503: The control terminal sends a test case to the spectrum analyzer, where the test case is used to instruct the spectrum analyzer to adjust a signal receiving mode and an analysis mode.

[0151] Step 504: the control terminal instructs the station to be tested to send downlink signals of several preset frequency bands to the spectrum analyzer through the interface box;

[0152] Step 505: The spectrum analyzer receives and compensates the downlink signal according to the receiving mode and the attenuation value of the radio frequency line;

[0153] Step 506: The spectrum analyzer samples and analyzes the compensated downlink signal according to the analysis method to obtain a test result corresponding to each preset frequency band;

[0154] Step 507: The control terminal checks whether the test result meets the preset range. If so, the control terminal obtains the final result according to the test result corresponding to each preset frequency band.

[0155] By adopting the above technical solution, the attenuation value of the RF line is obtained by the spectrum analyzer, so as to determine the loss caused by the RF line to the performance test; the spectrum analyzer samples and analyzes the compensated downlink signal according to the analysis method to obtain the test result corresponding to each preset frequency band, so as to compensate the test result and make the test result closer to the real result; the control terminal sends a test case to the spectrum analyzer, and the test case is used to instruct the spectrum analyzer to adjust the signal reception method and analysis method, so as to generate multiple test cases and use the test cases to test the base station; the control terminal verifies whether the test result meets the preset range. If so, the final result is obtained according to the test result corresponding to each preset frequency band, so as to verify whether the base station has an abnormality. In this article, after completing a test case, if no problem with the base station is detected, the test case is switched to complete the subsequent test, which reduces the repetitive operations of the tester, and by compensating the attenuation value, the influence of human factors on the interference of the test results can be reduced.

[0156] like Figure 6 As shown in the schematic diagram of the attenuation value calculation method, as an embodiment of this invention, the attenuation value calculation method of the radio frequency line includes:

[0157] Step 601: Determine the inspection time based on the lowest frequency and the highest frequency in all preset frequency bands;

[0158] In this step, the inspection time is determined according to the formula:

[0159] T C =(f max -f min )×10×0.001+2

[0160] Where T C is the test time, f max is the highest frequency, f min is the lowest frequency. The inspection time can be obtained.

[0161] First, the calculation script converts the highest and lowest frequencies to MHz. Subtracting the two gives the frequency span. In this example, the signal source defaults to sweeping 1 MHz in 10 ms, so multiply by 10 to get the total sweep time (in milliseconds). Multiply by 0.001 to convert milliseconds to seconds. Adding 2 gives an additional 2 seconds for the response time of the signal source, spectrum analyzer, interface box, and control terminal.

[0162] In this paper, a signal generator first transmits an uplink signal to the station under test through an interface box. The signal sent by the signal generator can be periodic. After the station under test receives the uplink signal, it processes it to generate a downlink signal, which is then sent to the spectrum analyzer through the interface box. Because the uplink signal contains several periodic signals, the spectrum analyzer needs to determine the sampling time, or the test time. This method improves the accuracy of the spectrum analyzer's signal processing and better detects the quality of the station under test.

[0163] Step 602: Instruct the signal generator to send a calibration signal to the spectrum analyzer through the interface box;

[0164] In this step, the RF line used by the signal generator to connect to the interface box is the same RF line used by the base station to be tested to connect to the interface box. In some cases, they can be the same RF line. Therefore, in order to detect the attenuation value, the signal generator can be used to send a calibration signal to the spectrum analyzer instead of the base station to be tested.

[0165] Step 603: The spectrum analyzer uses the verification signal received by the verification time sampling to obtain attenuation values ​​corresponding to several preset frequency bands;

[0166] In this step, the calibration signal obtained by the spectrum analyzer can be compared with the calibration signal actually sent by the signal generator to obtain attenuation values ​​corresponding to different frequency bands.

[0167] In this article, the frequency band can be 30 MHz to 1 GHz. This band is divided into 1001 frequency bands, and the center frequency of each band is determined. A spectrum analyzer is used to determine the test results for each center frequency. In this way, the test results corresponding to the calibration signal obtained by the spectrum analyzer and the test results corresponding to the calibration signal actually sent by the signal generator are obtained. By subtracting the test results corresponding to the calibration signal obtained by the spectrum analyzer from the test results corresponding to the calibration signal actually sent by the signal generator in each frequency band, the attenuation value corresponding to each frequency band can be obtained.

[0168] Step 604: Determine a first variance between attenuation values ​​corresponding to all preset frequency bands;

[0169] Step 605: If the first variance is less than a first reference value, the maximum attenuation value among the attenuation values ​​corresponding to all preset frequency bands is used as the attenuation value of the radio frequency line.

[0170] In this step, if the first variance is greater than the first reference value, it indicates that the RF line connection is abnormal and the tester needs to reconnect the line. In this article, the first variance can be 3.

[0171] The test algorithm in this paper can filter the test results after the test is completed. According to the complexity of each test item, it is divided into two algorithms.

[0172] As an embodiment of this invention, the control terminal verifies whether the test result meets a preset range, including:

[0173] When the test case is a first type of test case, the control terminal calculates an average value of the test results corresponding to all preset frequency bands;

[0174] The control terminal determines whether the average value is within a preset standard range, and if so, uses the average value as the final result.

[0175] Specifically, this paper calculates the variance, mean, and maximum value of multiple measurement data. If the absolute value of the difference between two adjacent variances is ≤2, the maximum value is recorded as the pending value of the final test result. Similarly, a set of pending values ​​of the final result is generated. The minimum value in the final set is used as the final test result. According to the 3GPP 38.141-1 standard, it is automatically determined whether the test result meets the standard requirements. This can ensure the accuracy and reproducibility of the test results. At the same time, the test results are saved locally to form a detailed record, making the test process traceable.

[0176] As an embodiment of this invention, the control terminal verifies whether the test result meets a preset range, further comprising:

[0177] When the test case is a second type of test case, the control terminal calculates the variance of the test results corresponding to all preset frequency bands;

[0178] The control terminal determines whether the variances of the test results corresponding to the adjacent preset frequency bands are smaller than a preset variance range. If so, the maximum value among the test results corresponding to all the preset frequency bands is used as the final result.

[0179] In this step, the preset variance range may be 3. In this step, the average value of multiple measurement data is taken. If the average value is within a specified range, the data closest to the average value in the measurement data is taken as the final test result.

[0180] As an embodiment of this invention, the method for generating a test case includes:

[0181] The control terminal obtains base station parameters and test parameters and generates several test cases;

[0182] The base station parameters include rated power and base station coverage type, and the test parameters include test frequency band and test mode.

[0183] The mobile communication base station RF performance test plan has developed test cases. According to the actual test needs, the center frequency, test mode, line loss value, cell identification code, terminal identification, trigger mode, coupling mode, resolution bandwidth and other test parameters required for the test are configured in the mobile communication base station RF performance automation test software. The test cases cover base station output power, frequency error, error vector amplitude, occupied bandwidth, adjacent channel leakage ratio, spectrum emission mask, spurious coexistence and receiver sensitivity.

[0184] This embodiment of the present invention describes the specific process of the mobile communication base station RF performance test solution for a local coverage base station with four antennas, a center frequency of 2595 MHz, and a single antenna power of 24 dBm. The three-antenna error vector magnitude test case is used to test the error vector magnitude. The error vector magnitude test process includes the following steps:

[0185] First, connect the control terminal, interface box, and spectrum analyzer to the switch using network cables / RF cables to ensure normal communication between the three devices and enable the control terminal to control the interface box and spectrum analyzer simultaneously.

[0186] Then, test one of the antenna ports of the station to be tested. Based on the number of antennas, center frequency, single-antenna power, and coverage type, select an attenuator with an attenuation value of 20dBm, a power handling power of 2W, and a frequency support of up to 18GHz, and a filter with a frequency range of 2515MHz-2675MHz. Simultaneously connect the three test antennas of the station to be tested and the required attenuator or filter to the input side of the interface box. Connect the output side to a spectrum analyzer. The control terminal then issues test instructions, allowing one antenna on the input side to perform normal testing. The remaining two antennas are automatically switched to the load by the interface box to prevent power leakage that may affect the test results. The interface box then switches to the error vector magnitude test circuit.

[0187] Configure the test case in the control terminal. For example, the test case may include the center frequency, test mode, line loss value, cell identification code parameters, and error vector magnitude test. Then start the test.

[0188] Finally, the spectrum analyzer selects the test results according to the test case and ends the current test.

[0189] After completing all test cases for one antenna port of the base station, the test port can be switched through the control terminal to complete the test of the remaining two antenna ports.

[0190] like Figure 7As shown, a computer device is provided according to the embodiments herein, which computer device runs a network device radio frequency performance testing method according to the embodiments herein. The computer device 702 can include one or more processors 704, such as one or more central processing units (CPUs), each of which can implement one or more hardware threads. The computer device 702 can also include any memory 706 for storing any kind of information, such as code, settings, data, etc. Without limitation, for example, the memory 706 can include any one or combination of: any type of RAM, any type of ROM, a flash memory device, a hard disk, an optical disk, etc. More generally, any memory can use any technology for storing information. Further, any memory can provide volatile or non-volatile retention of information. Further, any memory can represent a fixed or removable component of the computer device 702. In one case, the computer device 702 can perform any of the operations of the associated instructions when executed by the processor 704 stored in any memory or combination of memories. The computer device 702 also includes one or more drive mechanisms 708, such as a hard drive mechanism, an optical disk drive mechanism, etc., for interacting with any memory.

[0191] The computer device 702 can also include an input / output module 710 (I / O) for receiving various inputs (via input devices 712) and for providing various outputs (via output devices 714). One particular output mechanism can include a presentation device 716 and an associated graphical user interface (GUI) 718. In other embodiments, the input / output module 710 (I / O), the input devices 712, and the output devices 714 can also not be included, just as a computer device in a network. The computer device 702 can also include one or more network interfaces 720 for exchanging data with other devices via one or more communication links 722. One or more communication buses 724 couple the above-described components together.

[0192] The communication links 722 can be implemented in any manner, such as through a local area network, a wide area network (e.g., the Internet), a point-to-point connection, etc., or any combination thereof. The communication links 722 can include any combination of hardwired links, wireless links, routers, gateway functionality, name servers, etc., governed by any protocol or combination of protocols.

[0193] Corresponding to the method in Figure 5 and Figure 6 The embodiments herein also provide a computer readable storage medium, having stored thereon a computer program, which when executed by a processor performs the steps of the above method.

[0194] The embodiment of the present invention also provides a computer readable instruction, wherein when the processor executes the instruction, the program causes the processor to execute the following Figure 5 and Figure 6 The method shown.

[0195] 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.

[0196] It should also be understood that in the embodiments herein, the term "and / or" merely describes an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" could represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0197] Those skilled 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 above description has generally described the composition and steps of each example according to function. 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 beyond the scope of this document.

[0198] Those skilled in the art will 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.

[0199] 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 merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, 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 an electrical, mechanical, or other form of connection.

[0200] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments herein.

[0201] In addition, the functional units in the various embodiments herein may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0202] 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 existing technology, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of this article. The aforementioned storage medium includes: various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0203] This article uses specific embodiments 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 those skilled in the art, based on the ideas of this article, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation to this article.

Claims

1. A method for testing radio frequency performance of network equipment, characterized in that: Applied to a control terminal, the control terminal is connected to a signal generator, an interface box, and a spectrum analyzer via a switch and a radio frequency line, and the method includes: The spectrum analyzer obtains the attenuation value of the radio frequency line; The interface box is connected to at least one antenna port of the station to be tested; the interface box also includes 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; 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 signal generator; the load output port is connected to the station to be tested; the interface box 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 respectively form a plurality of test links with the couplers and the lines; the control terminal receives a test case and controls the coupler according to the test case to switch the coupling relationship between different signal source ports to obtain different test links; The control terminal sends a test case to the spectrum analyzer, wherein the test case is used to instruct the spectrum analyzer to adjust a signal receiving mode and an analysis mode; The control terminal instructs the station to be tested to send downlink signals of several preset frequency bands to the spectrum analyzer through the interface box; The spectrum analyzer receives and compensates the downlink signal according to the receiving mode and the attenuation value of the radio frequency line; The spectrum analyzer samples and analyzes the compensated downlink signal according to the analysis method to obtain a test result corresponding to each preset frequency band; The control terminal checks whether the test result meets a preset range. If so, a final result is obtained according to the test result corresponding to each preset frequency band.

2. The network equipment radio frequency performance testing method according to claim 1, characterized in that: The method for calculating the attenuation value of the radio frequency line includes: Determine the inspection time based on the lowest and highest frequencies in all preset frequency bands; enabling the signal generator to send a calibration signal to the spectrum analyzer through the interface box; The spectrum analyzer uses the verification signal received by the verification time sampling to obtain attenuation values ​​corresponding to a plurality of preset frequency bands; Determining a first variance between attenuation values ​​corresponding to all preset frequency bands; If the first variance is smaller than a first reference value, the minimum attenuation value among the attenuation values ​​corresponding to all preset frequency bands is used as the attenuation value of the radio frequency line.

3. The network equipment radio frequency performance testing method according to claim 2, characterized in that: The determining of the first variance between the attenuation values ​​corresponding to all preset frequency bands further includes: If the first variance is greater than a first reference value, it is indicated that the connection of the radio frequency line is abnormal.

4. The network equipment radio frequency performance testing method according to claim 1, characterized in that: The control terminal verifies whether the test result meets a preset range, including: When the test case is a first type of test case, the control terminal calculates an average value of the test results corresponding to all preset frequency bands; The control terminal determines whether the average value is within a preset standard range, and if so, uses the average value as the final result.

5. The network equipment radio frequency performance testing method according to claim 1, characterized in that: The control terminal verifies whether the test result meets a preset range, further comprising: When the test case is a second type of test case, the control terminal calculates the variance of the test results corresponding to all preset frequency bands; The control terminal determines whether the absolute value of the difference in variance of the test results corresponding to the adjacent preset frequency bands is less than the preset variance range. If so, the maximum value of the test results corresponding to all preset frequency bands is used as the final result.

6. The network equipment radio frequency performance testing method according to claim 1, characterized in that: The test case generation method includes: The control terminal obtains base station parameters and test parameters and generates several test cases; The base station parameters include rated power and base station coverage type, and the test parameters include test frequency band and test mode.

7. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for testing the radio frequency performance of a network device according to any one of claims 1 to 6 is implemented.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the network device radio frequency performance testing method according to any one of claims 1 to 6 is implemented.

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