Test method, system, device and equipment for base station antenna

Abstract

The invention relates to the technical field of communication, provides a test method, system, device and equipment for a base station antenna, and is used for solving the problems that a test method for the base station antenna in the prior art is relatively low in efficiency and easily causes equipment resource loss. According to the embodiment of the invention, the declination angle adjustment instruction is issued through the port of the base station antenna to adjust the declination angle of the base station antenna, so that the error of manually inputting the declination angle is eliminated; meanwhile, a plurality of test channels of the intermodulation instrument and a plurality of ports of the base station antenna are connected through the matrix switch, and the matrix switch is controlled through an instruction to switch the antenna ports and the test channels, so that the intermodulation instrument starts passive intermodulation test based on the test channels corresponding to the ports, physical plugging actions are eliminated, and the service life of equipment can be prolonged; and comparing the passive intermodulation test result with the passive intermodulation test threshold, and when the passive intermodulation test result is determined to be greater than the passive intermodulation test threshold, readjusting the declination angle of the base station antenna until the declination angle of the base station antenna meets the requirement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular to a base station antenna testing method, system, device and equipment. BACKGROUND

[0002] With the high-density deployment of 5G networks and the popularity of Massive MIMO (Massive Multiple Input Multiple Output) antennas, the performance stability of base station antennas has become a key factor affecting network quality. As a key indicator for measuring the degree of non-linear distortion of base station antennas, the test result of passive intermodulation (PIM) is directly related to the signal interference suppression capability of the base station antenna.

[0003] The current PIM test process of the base station antenna relies on manual adjustment of the antenna downtilt angle and manual switching of the test port connection. Through multiple tests and parameter corrections, the test result that meets the preset conditions is gradually approached to meet the signal interference suppression capability requirement. Moreover, the switching step of the test port needs to frequently plug and unplug the coaxial connector.

[0004] However, the above-mentioned test method has the following significant problems:

[0005] In the related test process, the downtilt angle adjustment link and the test port connection switching link highly depend on manual operation, resulting in long single test period, poor batch processing capability, and low efficiency.

[0006] In the related test process, frequent plugging and unplugging of the coaxial connector causes interface wear, leading to poor contact and PIM noise fluctuation at the interface.

[0007] Therefore, the base station antenna test method in the related art has low efficiency and is prone to cause resource loss of equipment. SUMMARY

[0008] The purpose of the present application is to provide a base station antenna testing method, system, device and equipment to solve the problem of low efficiency and easy resource loss of equipment in the related art.

[0009] In a first aspect, the present application provides a base station antenna testing method, which comprises:

[0010] For each port of the plurality of ports of the base station antenna, the following operations are performed respectively:

[0011] For the port, a test channel switching instruction is sent to a matrix switch to switch the test channel of an intermodulation instrument to the test channel corresponding to the port; the matrix switch is used to connect a plurality of test channels of the intermodulation instrument and a plurality of ports of the base station antenna;

[0012] Obtaining a target downtilt angle for the port and sending a downtilt angle adjustment instruction to the port;

[0013] After determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, sending a test start instruction to the intermodulation instrument, so that the intermodulation instrument starts a passive intermodulation test based on the test channel corresponding to the port;

[0014] Obtaining a passive intermodulation test result, and comparing the passive intermodulation test result with a passive intermodulation test threshold;

[0015] If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated and the process returns to the step of obtaining the target downtilt angle of the port until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold.

[0016] In a possible implementation, updating the target downtilt angle includes:

[0017] Determining a set of passive intermodulation test results that are less than or equal to the passive intermodulation test threshold from a pre-established relationship curve between downtilt angles and passive intermodulation test results; the relationship curve between the downtilt angles and passive intermodulation test results is obtained by fitting historical downtilt angle data and historical passive intermodulation test result data of the base station antenna;

[0018] A corresponding downtilt angle set is determined according to the passive intermodulation test result set, and a downtilt angle in the downtilt angle set that meets a preset condition is used as an updated target downtilt angle, wherein the preset condition is that the downtilt angle is a maximum downtilt angle that changes continuously from a preset angle.

[0019] In a possible implementation, the following method is used to fit a relationship curve between the downtilt angle and the passive intermodulation test result:

[0020] Establishing a coordinate system, wherein the horizontal axis variable of the coordinate system is the downtilt angle, and the vertical axis variable of the coordinate system is the passive intermodulation test result;

[0021] The historical downtilt angle data and the historical passive intermodulation test result data of the base station antenna are marked as coordinate points in the coordinate system, and the coordinate points in the coordinate system are fitted using the least squares method to obtain a relationship curve between the downtilt angle and the passive intermodulation test result.

[0022] In a possible implementation, the sending a downtilt angle adjustment instruction to the port includes:

[0023] According to a correspondence between a base station antenna port and a remote control unit, a remote control unit corresponding to the port is determined; the remote control unit is integrated on the base station antenna;

[0024] A downtilt angle adjustment instruction is sent to the remote control unit corresponding to the port, so that the remote control unit sends the downtilt angle adjustment instruction to the port.

[0025] In a possible implementation, the method further includes:

[0026] If the downtilt angle adjustment duration exceeds a preset duration, a stop instruction is sent to the base station antenna to stop adjusting the downtilt angle, and an alarm signal is sent, the downtilt angle adjustment duration being an interval duration from sending the downtilt angle adjustment instruction to determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle.

[0027] In a second aspect, the application provides a test system for a base station antenna, the system including: a software control center, an intermodulation instrument, a matrix switch, and a base station antenna;

[0028] The software control center is connected to the intermodulation instrument, the matrix switch, and the base station antenna, respectively; and is configured to, for each port of a plurality of ports of the base station antenna, perform the following operations:

[0029] For the port, a test channel switching instruction is sent to the matrix switch, so that the matrix switch switches a test channel of the intermodulation instrument to a test channel corresponding to the port; a target downtilt angle for the port is obtained, and a downtilt angle adjustment instruction is sent to the port; after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, a test start instruction is sent to the intermodulation instrument; a passive intermodulation test result is obtained, and the passive intermodulation test result is compared with a passive intermodulation test threshold; if it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated, and the step of obtaining the target downtilt angle for the port is returned until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold;

[0030] The intermodulation instrument is configured to receive the test start instruction, determine a passive intermodulation test result based on the test channel corresponding to the port in response to the test start instruction, and return the passive intermodulation test result to the software control center;

[0031] The matrix switch is configured to connect a plurality of test channels of the intermodulation instrument and a plurality of ports of the base station antenna, and to switch the test channel of the intermodulation instrument to the test channel corresponding to the port in response to the test channel switching instruction;

[0032] The base station antenna is configured to adjust a downtilt angle of the base station antenna to the target downtilt angle in response to the downtilt angle adjustment instruction.

[0033] In a third aspect, the present application provides a testing device for a base station antenna, the device comprising:

[0034] For each port of the plurality of ports of the base station antenna, the following operations are performed respectively:

[0035] a matrix switch control module configured to send a test channel switching instruction to a matrix switch for the port, so that the matrix switch switches a test channel of an intermodulation instrument to a test channel corresponding to the port according to the port; the matrix switch is configured to connect the plurality of test channels of the intermodulation instrument and the plurality of ports of the base station antenna;

[0036] a base station antenna control module configured to obtain a target downtilt angle of the port, and send a downtilt angle adjustment instruction to the port;

[0037] an intermodulation instrument driving module configured to send a test start instruction to the intermodulation instrument after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, so that the intermodulation instrument starts a passive intermodulation test based on the test channel corresponding to the port;

[0038] a passive intermodulation test result judging module configured to obtain a passive intermodulation test result, and compare the passive intermodulation test result with a passive intermodulation test threshold;

[0039] If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated, and the step of obtaining the target downtilt angle of the port is returned to be executed until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold.

[0040] In a possible implementation, the updating of the target downtilt angle is performed, and the passive intermodulation test result judging module is specifically configured to:

[0041] determine a passive intermodulation test result set less than or equal to the passive intermodulation test threshold from a previously established downtilt angle and passive intermodulation test result relationship curve; the downtilt angle and passive intermodulation test result relationship curve is obtained by fitting historical downtilt angle data and historical passive intermodulation test result data of the base station antenna;

[0042] determine a corresponding downtilt angle set according to the passive intermodulation test result set, and take a downtilt angle satisfying a preset condition in the downtilt angle set as an updated target downtilt angle; the preset condition is that the downtilt angle is a maximum downtilt angle that is continuously changed from a preset angle.

[0043] In a possible implementation, the following method is used to fit the curve of the downtilt angle and the passive intermodulation test result, and the passive intermodulation test result judging module is specifically configured to:

[0044] A coordinate system is established, wherein a horizontal axis variable of the coordinate system is the downtilt angle, and a vertical axis variable of the coordinate system is the passive intermodulation test result;

[0045] The historical downtilt angle data and the historical passive intermodulation test result data of the base station antenna are marked as coordinate points in the coordinate system, and the least square method is used to fit the coordinate points in the coordinate system to obtain the curve of the downtilt angle and the passive intermodulation test result.

[0046] In a possible implementation, the base station antenna control module is specifically configured to:

[0047] According to the correspondence between the base station antenna port and the remote control unit, the remote control unit corresponding to the port is determined; and the remote control unit is integrated on the base station antenna.

[0048] The downtilt angle adjustment instruction is sent to the remote control unit corresponding to the port, so that the remote control unit sends the downtilt angle adjustment instruction to the port.

[0049] In a possible implementation, the apparatus further includes a downtilt angle adjustment duration judging module, which is specifically configured to:

[0050] If the downtilt angle adjustment duration exceeds a preset duration, a stop instruction is sent to the base station antenna to make the base station antenna stop adjusting the downtilt angle, and an alarm signal is sent, wherein the downtilt angle adjustment duration is an interval duration from sending the downtilt angle adjustment instruction to determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle.

[0051] In a fourth aspect, the present application provides an electronic device, comprising:

[0052] a processor and a memory;

[0053] the memory is configured to store the processor-executable instructions;

[0054] the processor is configured to execute the instructions to implement the test method of the base station antenna according to any one of the first aspect of the present application.

[0055] In a fifth aspect, the present application provides a computer-readable storage medium, when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device can execute the test method of the base station antenna according to any one of the first aspect of the present application.

[0056] In a sixth aspect, the present application provides a computer program product, which comprises a computer program, when the computer program is executed by a processor of an electronic device, enables the processor to execute the test method of the base station antenna according to any one of the first aspect of the present application.

[0057] The technical solutions provided by the embodiments of the present application at least have the following beneficial effects:

[0058] The embodiments of the present application provide a test method of a base station antenna, which adjusts the downtilt angle of the base station antenna by issuing a downtilt angle adjustment instruction through the port of the base station antenna, eliminates the error of manually inputting the downtilt angle, and simultaneously connects multiple test channels of an intermodulation instrument and multiple ports of the base station antenna through a matrix switch, switches the port of the base station antenna and the test channel of the intermodulation instrument through an instruction control matrix switch, eliminates the physical plugging action, prolongs the service life of the equipment, improves the test efficiency, reduces the labor cost, and realizes the full-process automatic control.

[0059] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, the preferred embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments of the present application will be briefly introduced below. Obviously, the drawings introduced below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0061] Figure 1 The application scenario diagram of the test method of the base station antenna provided by the embodiments of the present application;

[0062] Figure 2 The schematic diagram of the test system of the base station antenna provided by the embodiments of the present application;

[0063] Figure 3 The overall flowchart of the test method of the base station antenna provided by the embodiments of the present application;

[0064] Figure 4 The flowchart of updating the target downtilt angle provided by the embodiments of the present application;

[0065] Figure 5 The schematic diagram of the relationship curve between the downtilt angle and the passive intermodulation test result provided by the embodiments of the present application;

[0066] Figure 6 A structural schematic diagram of a test device of a base station antenna provided by an embodiment of the present application is shown in the figure.

[0067] Figure 7 A structural schematic diagram of an electronic device provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0068] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. The described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0069] In addition, in the description of the embodiments of the present application, unless otherwise specified, “ / ” represents the meaning of or, for example, A / B can represent A or B; “and / or” in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, “multiple” means two or more than two.

[0070] Hereinafter, the terms “first” and “second” are only used for description purposes, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more features.

[0071] The professional terms and technologies involved in the present application are described as follows:

[0072] RCU (Remote Control Unit): Remote control unit of base station antenna, used to adjust the mechanical or electronic downtilt angle of the antenna.

[0073] Electronic downtilt angle: The angle between the main lobe direction of the antenna beam and the horizontal plane, which directly affects the network coverage range and signal quality.

[0074] PIM (Passive Intermodulation): Interference signal generated by non-linear devices (such as connectors, antenna elements).

[0075] Matrix switch: A multi-input / output switching device that can automatically connect and disconnect test lines through programming, avoiding manual repeated wiring.

[0076] With the high-density deployment of 5G networks and the popularity of Massive MIMO (Massive Multiple Input Multiple Output) antennas, the performance stability of the base station antenna becomes a core factor affecting the network quality. As a key indicator for measuring the degree of nonlinear distortion of the base station antenna, the test result of passive intermodulation (PIM) is directly related to the signal interference suppression capability of the base station antenna.

[0077] The current PIM test process of the base station antenna relies on manual repeated adjustment of the antenna downtilt angle and manual switching of the test port connection. Through multiple tests and parameter corrections, the test result meeting the preset conditions is gradually approached to meet the signal interference suppression capability requirement. Moreover, the switching step of the test port needs to frequently plug and unplug the coaxial connector.

[0078] However, the above test method has the following significant problems:

[0079] In the related test process, the adjustment of the downtilt angle and the switching of the test port connection rely heavily on manual operation, resulting in a long single test period, poor batch processing capability, and low efficiency.

[0080] In the related test process, frequent plugging and unplugging of the coaxial connector causes interface wear, leading to poor contact and PIM noise fluctuation at the interface.

[0081] Therefore, the base station antenna test method in the related art has low efficiency and is prone to cause resource loss of equipment.

[0082] Therefore, the base station antenna test method in the related art has low efficiency and is prone to cause resource loss of equipment.

[0083] The inventive concept of the present application can be summarized as follows: the downtilt angle of the base station antenna is adjusted by issuing a downtilt angle adjustment instruction from the port of the base station antenna, eliminating the error of manual input of the downtilt angle. Meanwhile, the multiple test channels of the intermodulation instrument are connected to the multiple ports of the base station antenna through a matrix switch, and the matrix switch is controlled by an instruction to switch the test port and the test channel, so that the intermodulation instrument starts passive intermodulation test based on the test channel corresponding to the port, eliminating the physical plugging action, prolonging the service life of the equipment, and improving the test efficiency. Furthermore, the passive intermodulation test result is compared with the passive intermodulation test threshold, and when it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated to readjust the downtilt angle of the base station antenna until the downtilt angle of the base station antenna meets the signal interference suppression capability requirement. The present application adjusts the downtilt angle and switches the test port by an instruction, realizes full-process automatic control, and reduces the labor cost.

[0084] After introducing the main inventive concepts of the embodiments of this application, the following briefly introduces the application scenarios to which the technical solutions of the embodiments of this application can be applied. It should be noted that the application scenarios introduced below are only for the purpose of illustrating the embodiments of this application and are not limiting. In specific implementations, the technical solutions provided in the embodiments of this application can be flexibly applied according to actual needs.

[0085] For ease of understanding, a base station antenna testing method provided in an embodiment of the present application is described in detail below with reference to the accompanying drawings:

[0086] like Figure 1 The figure shows an application scenario of a base station antenna testing method provided by an embodiment of the present application. The figure includes: a network 10, a server 20, and a memory 30. Server 20 can be the software control center in the embodiment of the present application, obtaining input data through the network and sending relevant control instructions to the intermodulation instrument, matrix switch, and base station antenna.

[0087] The description in this application only details a single server, but it should be understood by those skilled in the art that the network 10, server 20 and memory 30 shown are intended to represent the operation of the electronic device, server and memory involved in the technical solution of this application. The description of a single server and memory is at least for the convenience of explanation, and does not imply any limitation on the number, type or location of servers. It should be noted that if additional modules are added to the illustrated environment or individual modules are removed from it, it will not change the underlying concepts of the example embodiments of this application. In addition, although for the convenience of explanation, Figure 1 A bidirectional arrow from the storage 30 to the server 20 is shown in the figure, but it can be understood by those skilled in the art that the sending and receiving of the above data also needs to be implemented through the network 10.

[0088] It should be noted that the memory in the embodiment of the present application can be, for example, a cache system, a hard disk storage, a memory storage, etc. In addition, the base station antenna testing method proposed in the present application is not only applicable to Figure 1 The application scenario shown can also be used in other possible application scenarios, and the embodiments of the present application are not limited thereto.

[0089] like Figure 2As shown in the figure, it is a schematic diagram of a test system of a base station antenna provided by an embodiment of the present application. The system in the figure includes a software control center, an intermodulation instrument, a matrix switch, and a base station antenna. The software control center is connected with the intermodulation instrument, the matrix switch, and the base station antenna respectively. The software control center sends relevant control instructions to the intermodulation instrument, the matrix switch, and the base station antenna to realize the test method of the base station antenna of the present application. For example, the software control center sends a downtilt angle adjustment instruction to the base station antenna. The software control center is also used to acquire signal feedback or data from the intermodulation instrument, the matrix switch, and the base station antenna. For example, the software control center acquires the passive intermodulation test result from the intermodulation instrument. The intermodulation instrument is used to start passive intermodulation test based on the test channel corresponding to the port in response to a test start instruction to determine the passive intermodulation test result and return the passive intermodulation test result to the software control center. The matrix switch is used to connect the multiple test channels of the intermodulation instrument with the multiple ports of the base station antenna and switch the test channel of the intermodulation instrument to the test channel corresponding to the port in response to a test channel switching instruction. The base station antenna is used to adjust the downtilt angle of the base station antenna to the target downtilt angle in response to the downtilt angle adjustment instruction. It should be noted that the single port is described in detail at least for the convenience of description, and it is not meant to limit the number, type, or position of the ports or test channels.

[0090] Based on the above description, the test method of the base station antenna provided by an embodiment of the present application has the overall flow as shown in the figure. Figure 3 As shown in the figure, for each port of the multiple ports of the base station antenna, the following operations are performed respectively:

[0091] In step 301, for the port, a test channel switching instruction is sent to the matrix switch to make the matrix switch switch the test channel of the intermodulation instrument to the test channel corresponding to the port. The matrix switch is used to connect the multiple test channels of the intermodulation instrument with the multiple ports of the base station antenna.

[0092] For example, the base station antenna contains 4 ports (Port1-Port4), the intermodulation instrument supports 2 test channels (Channel1-Channel2), each port corresponds to a different test channel, and the correspondence is as follows: Port1→Channel2, Port2→Channel2. Therefore, when it is determined to test the port Port1, a test channel switching instruction is sent to the matrix switch, the matrix switch switches the test channel of the intermodulation instrument to the test channel Channel1 corresponding to the port Port1, that is, the port Port1 is connected with the test channel Channel1.

[0093] It should be noted that the test method of the base station antenna of the embodiment of the present application supports multi-port parallel testing, and the parallel testing process can be divided into multiple rounds according to the number of ports and the number of test channels. For a base station antenna with 4 ports, and in the case that the intermodulation instrument supports 2 test channels, the parallel testing includes:

[0094] First round: Port1→Channel1, Port2→Channel2 (tested at the same time);

[0095] Second round: Port3→Channel1, Port4→Channel2 (tested at the same time);

[0096] Compared with the related art, which highly depends on manual operation in switching the test port connection link and serial testing, the present application switches the port and test channel through the instruction control matrix switch, eliminates the physical plugging action, prolongs the service life of the equipment, saves the testing time in multi-port parallel testing, and improves the testing efficiency.

[0097] In step 302, the target downtilt angle for the port is acquired, and a downtilt angle adjustment instruction is sent to the port.

[0098] In one possible implementation, as shown in the base station antenna in Figure 2 The remote control unit is integrated on the base station antenna, and the remote control unit is not limited to 1 but can be multiple, and each remote control unit can correspond to multiple base station antenna ports. The software control center in the present application realizes the instruction issuing and the control of the base station antenna by sending a downtilt angle adjustment instruction to the remote control unit. That is, the step of sending a downtilt angle adjustment instruction to the port can be implemented as:

[0099] According to the correspondence between the base station antenna port and the remote control unit, the remote control unit corresponding to the port is determined; the downtilt angle adjustment instruction is sent to the remote control unit corresponding to the port, so that the remote control unit sends the downtilt angle adjustment instruction to the port.

[0100] It should be noted that before testing the base station antenna, the software control center will acquire input data, including: the downtilt angle range (such as 5°-15°, with a step of 0.5°); the non-inductive intermodulation test frequency band (such as 800MHz, 900MHz, 1.8GHz, etc.); and the passive intermodulation test threshold (-100dBm) and other parameters.

[0101] In step 303, after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, a test start instruction is sent to the intermodulation instrument, so that the intermodulation instrument starts passive intermodulation testing based on the test channel corresponding to the port.

[0102] For example, the port to be tested is Port 1, the target down tilt angle of the port Port 1 is 5°, and after determining that the down tilt angle of the base station antenna is adjusted to 5°, a test start instruction is sent to the intermodulation instrument to enable the intermodulation instrument to start passive intermodulation test based on the test channel Channel 1 corresponding to the port.

[0103] In a possible implementation, if the down tilt angle adjustment duration exceeds the preset duration, a stop instruction is sent to the base station antenna to stop adjusting the down tilt angle, and an alarm signal is sent, wherein the down tilt angle adjustment duration is the interval duration from sending the down tilt angle adjustment instruction to determining that the down tilt angle of the base station antenna is adjusted to the target down tilt angle.

[0104] In step 304, the passive intermodulation test result is obtained, and the passive intermodulation test result is compared with the passive intermodulation test threshold.

[0105] In step 305, if it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target down tilt angle is updated, and the step of obtaining the target down tilt angle of the port is returned until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold.

[0106] In a possible implementation, the target down tilt angle is updated in step 305, and the flow is as shown in Figure 4 , which can be implemented as:

[0107] In step 401, a set of passive intermodulation test results less than or equal to the passive intermodulation test threshold is determined from a previously established relationship curve of down tilt angle and passive intermodulation test result.

[0108] The relationship curve of down tilt angle and passive intermodulation test result is obtained by fitting historical down tilt angle data and historical passive intermodulation test result data of the base station antenna.

[0109] In step 402, a set of corresponding down tilt angles is determined according to the set of passive intermodulation test results, and a down tilt angle in the set of down tilt angles that meets a preset condition is taken as an updated target down tilt angle, the preset condition being that the down tilt angle is the maximum down tilt angle that is continuously changed from a preset angle.

[0110] In a possible implementation, the relationship curve of down tilt angle and passive intermodulation test result is obtained by fitting the following method:

[0111] A coordinate system is established, wherein the horizontal axis variable of the coordinate system is the down tilt angle, and the vertical axis variable of the coordinate system is the passive intermodulation test result.

[0112] The historical downtilt angle data and historical passive intermodulation test result data of the base station antenna are marked as coordinate points in the coordinate system, and the coordinate points in the coordinate system are fitted using the least squares method to obtain the relationship curve between the downtilt angle and the passive intermodulation test result.

[0113] For example, if the PIM test result is greater than the PIM test threshold, the target downtilt angle is updated as follows:

[0114] The historical downtilt angle data and historical passive intermodulation test results of the base station antenna obtained through multiple tests are as follows:

[0115] Downtilt / ° PIM / dBm 0 -129 2.5 -126 5 -119 7.5 -98 10 -106

[0116] The passive intermodulation test threshold is -100dBm, and the passive intermodulation test result corresponding to the downtilt angle of 7.5° is -98dBm. If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, it is determined that the target downtilt angle is updated;

[0117] The relationship curve between the downtilt angle and the passive intermodulation test results is obtained by fitting using the least squares method. Figure 5 As shown, the horizontal axis variable of the coordinate system is the downtilt angle, and the vertical axis variable of the coordinate system is the passive intermodulation test result. Figure 5 In the relationship curve, with 7.5° as the center, the sampling interval is set to 0.25°, and the values ​​are taken to the left and right, and the following data are obtained:

[0118] Downtilt / ° PIM / dBm 7 -102 7.25 -99 7.5 -98 7.75 -101 8 -104

[0119] It is determined that a passive intermodulation test result set that is less than or equal to the passive intermodulation test threshold includes -102dBm, -101dBm, and -104dBm. The downtilt angle set corresponding to the passive intermodulation test result set includes 7°, 7.75°, and 8°. The preset condition is that the downtilt angle is the maximum downtilt angle that continuously changes from the preset angle. In this example, according to the preset condition, the downtilt angle is determined to be the maximum downtilt angle that continuously changes from 0°. At this time, the optimal downtilt angle of the base station antenna is determined to be 7°.

[0120] In one possible implementation, the matrix switch in the embodiment of the present application supports multiple RF interfaces such as N-type and 7 / 16-type, and is adapted to different antenna models; a built-in impedance matching circuit (50Ω±1Ω) ensures the impedance continuity of the non-inductive intermodulation test link and reduces PIM noise caused by signal reflection.

[0121] In summary, the method for testing the base station antenna provided in the embodiments of the present application adjusts the downtilt angle of the base station antenna by issuing a downtilt angle adjustment instruction through the port of the base station antenna, thereby eliminating the error caused by manual input of the downtilt angle. Meanwhile, the plurality of test channels of the intermodulation instrument are connected to the plurality of ports of the base station antenna through the matrix switch, and the matrix switch is controlled by the instruction to switch the test channel and the port, so that the intermodulation instrument starts the passive intermodulation test based on the test channel corresponding to the port, thereby eliminating the physical plugging action, prolonging the service life of the equipment, and improving the test efficiency. In addition, the passive intermodulation test result is compared with the passive intermodulation test threshold value, and when it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold value, the target downtilt angle is updated to readjust the downtilt angle of the base station antenna until the downtilt angle of the base station antenna meets the signal interference suppression capability requirement. The embodiments of the present application control the downtilt angle adjustment and the test port switching by the instruction, thereby realizing full-process automatic control and reducing the labor cost.

[0122] Based on the same inventive concept, the embodiments of the present application also provide a device for testing a base station antenna, as shown in Figure 6 The device 600 includes:

[0123] For each port of the plurality of ports of the base station antenna, the following operations are performed respectively:

[0124] The matrix switch control module 601 is configured to send a test channel switching instruction to the matrix switch for the port, so that the matrix switch switches the test channel of the intermodulation instrument to the test channel corresponding to the port according to the port; and the matrix switch is configured to connect the plurality of test channels of the intermodulation instrument to the plurality of ports of the base station antenna.

[0125] The base station antenna control module 602 is configured to obtain a target downtilt angle of the port, and send a downtilt angle adjustment instruction to the port.

[0126] The intermodulation instrument driving module 603 is configured to send a test starting instruction to the intermodulation instrument after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, so that the intermodulation instrument starts the passive intermodulation test based on the test channel corresponding to the port.

[0127] The passive intermodulation test result judgment module 604 is configured to obtain a passive intermodulation test result, and compare the passive intermodulation test result with a passive intermodulation test threshold value.

[0128] If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold value, the target downtilt angle is updated and the step of obtaining the target downtilt angle of the port is returned to be executed until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold value.

[0129] In a possible implementation, the updating the target downtilt angle is performed, and the passive intermodulation test result judging module is specifically configured to:

[0130] determining a passive intermodulation test result set less than or equal to the passive intermodulation test threshold from a pre-established downtilt angle and passive intermodulation test result relationship curve; the downtilt angle and passive intermodulation test result relationship curve is obtained by fitting historical downtilt angle data and historical passive intermodulation test result data of the base station antenna;

[0131] determining a corresponding downtilt angle set according to the passive intermodulation test result set, and taking a downtilt angle in the downtilt angle set satisfying a preset condition as an updated target downtilt angle, the preset condition being that the downtilt angle is a maximum downtilt angle continuously changed from a preset angle.

[0132] In a possible implementation, the downtilt angle and passive intermodulation test result relationship curve is obtained by fitting the following method, and the passive intermodulation test result judging module is specifically configured to:

[0133] establishing a coordinate system, wherein a horizontal axis variable of the coordinate system is a downtilt angle, and a vertical axis variable of the coordinate system is a passive intermodulation test result;

[0134] marking historical downtilt angle data and historical passive intermodulation test result data of the base station antenna as coordinate points in the coordinate system, and fitting the coordinate points in the coordinate system by using a least square method to obtain a downtilt angle and passive intermodulation test result relationship curve.

[0135] In a possible implementation, the sending the downtilt angle adjustment instruction to the port is performed, and the base station antenna control module is specifically configured to:

[0136] determining a remote control unit corresponding to the port according to a correspondence between a base station antenna port and a remote control unit; the remote control unit is integrated on the base station antenna;

[0137] sending a downtilt angle adjustment instruction to the remote control unit corresponding to the port, so that the remote control unit sends the downtilt angle adjustment instruction to the port.

[0138] In a possible implementation, the apparatus further includes a downtilt angle adjustment duration judging module, which is specifically configured to:

[0139] If the downtilt angle adjustment duration exceeds the preset duration, a stop instruction is sent to the base station antenna to stop adjusting the downtilt angle, and an alarm signal is sent, the downtilt angle adjustment duration being an interval from sending the downtilt angle adjustment instruction to determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle.

[0140] The electronic device 130 according to this embodiment of the present application will be described below with reference to Figure 7 Figure 7 The display electronic device 130 is merely an example and should not impose any limitation on the function and scope of use of the embodiments of the present application.

[0141] As shown in Figure 7 The electronic device 130 is shown in the form of a general electronic device. The components of the electronic device 130 can include, but are not limited to, the at least one processor 131 described above, the at least one memory 132 described above, and a bus 133 connecting different system components, including the memory 132 and the processor 131.

[0142] The bus 133 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a processor or local bus using any of a variety of bus structures.

[0143] The memory 132 can include a readable medium in the form of volatile memory, such as a random access memory (RAM) 1321 and / or a cache memory 1322, and can further include a read-only memory (ROM) 1323.

[0144] The memory 132 can further include a program / utility 1325 having a set of program modules 1324, including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or a combination of which can include implementation of a network environment.

[0145] ​The electronic device 130 can also communicate with one or more external devices 134 such as a keyboard or a pointing device, through an input / output (I / O) interface 135. Further, the electronic device 130 can communicate with one or more devices that enable user interaction with the electronic device 130, and / or one or more devices that enable communication of the electronic device 130 with one or more other electronic devices. This communication can be via the I / O interface 135. Still yet, the electronic device 130 can communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or the Internet) through a network adapter 136. As depicted, the network adapter 136 communicates with the other components of the electronic device 130 via the bus 133. It should be appreciated that the electronic device 130 can be a part of another device or be a stand-alone device. In addition, the electronic device 130 can be connected to, or a part of, other types of devices, such as a personal computer, a server, or a facsimile machine. Also, the electronic device 130 can be part of a machine that is not a general purpose computing device, such as a combination television / VCR, a wireless device, or a personal digital assistant (PDA). The electronic device 130 can also be a portable electronic device, such as a laptop computer, a notebook computer, a handheld computer, or a personal digital assistant. The electronic device 130 can also be a portable media device that is configured to store and play

[0146] In an example embodiment, the present application also provides a computer readable storage medium including instructions, such as the memory 132 including instructions, which can be executed by the processor 131 of the electronic device 130 to implement the method for testing a base station antenna described above. Optionally, the computer readable storage medium can be a non-transitory computer readable storage medium, such as a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0147] In an example embodiment, the present application also provides a computer program product including a computer program, which, when executed by the processor 131, implements the method for testing a base station antenna as provided by the present application.

[0148] Those skilled in the art will appreciate that embodiments of the present application can be supplied as a method, a system, or a computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, magnetic disks, CD-ROMs, optical storage media, etc.) embodying computer readable program code.

[0149] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps in the flowchart block or blocks

[0150] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps in the flowchart block or blocks

[0151] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 means for functionally implementing the steps in the flowchart block or blocks

[0152] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A method for testing a base station antenna, characterized in that: The method comprises: For each of the multiple ports of the base station antenna, perform the following operations: For the port, sending a test channel switching instruction to the matrix switch so that the matrix switch switches the test channel of the intermodulation instrument to the test channel corresponding to the port; the matrix switch is used to connect the multiple test channels of the intermodulation instrument with the multiple ports of the base station antenna; Obtaining a target downtilt angle for the port and sending a downtilt angle adjustment instruction to the port; After determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, sending a test start instruction to the intermodulation instrument, so that the intermodulation instrument starts a passive intermodulation test based on the test channel corresponding to the port; Obtaining a passive intermodulation test result, and comparing the passive intermodulation test result with a passive intermodulation test threshold; If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated and the process returns to the step of obtaining the target downtilt angle of the port until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold.

2. The method according to claim 1, characterized in that The updating of the target downtilt angle includes: Determining a set of passive intermodulation test results that are less than or equal to the passive intermodulation test threshold from a pre-established relationship curve between downtilt angles and passive intermodulation test results; the relationship curve between the downtilt angles and passive intermodulation test results is obtained by fitting historical downtilt angle data and historical passive intermodulation test result data of the base station antenna; A corresponding downtilt angle set is determined according to the passive intermodulation test result set, and a downtilt angle in the downtilt angle set that meets a preset condition is used as an updated target downtilt angle, wherein the preset condition is that the downtilt angle is a maximum downtilt angle that changes continuously from a preset angle.

3. The method according to claim 2, characterized in that The relationship curve between the downtilt angle and the passive intermodulation test results is obtained by fitting using the following method: Establishing a coordinate system, wherein the horizontal axis variable of the coordinate system is the downtilt angle, and the vertical axis variable of the coordinate system is the passive intermodulation test result; The historical downtilt angle data and the historical passive intermodulation test result data of the base station antenna are marked as coordinate points in the coordinate system, and the coordinate points in the coordinate system are fitted using the least squares method to obtain a relationship curve between the downtilt angle and the passive intermodulation test result.

4. The method according to claim 1, wherein The sending of the downtilt angle adjustment instruction to the port includes: Determining the remote control unit corresponding to the port according to the corresponding relationship between the base station antenna port and the remote control unit; the remote control unit is integrated on the base station antenna; A downtilt angle adjustment instruction is sent to the remote control unit corresponding to the port, so that the remote control unit sends the downtilt angle adjustment instruction to the port.

5. The method according to claim 1, wherein The method further comprises: If the downtilt angle adjustment duration exceeds a preset duration, a stop command is sent to the base station antenna to stop adjusting the downtilt angle of the base station antenna, and an alarm signal is issued. The downtilt angle adjustment duration is the interval from sending the downtilt angle adjustment command to determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle.

6. A base station antenna testing system, characterized in that: The system includes: a software control center, an intermodulation instrument, a matrix switch, and a base station antenna; The software control center is connected to the intermodulator, the matrix switch and the base station antenna respectively; and is used to perform the following operations for each of the multiple ports of the base station antenna: For the port, a test channel switching instruction is sent to the matrix switch so that the matrix switch switches the test channel of the intermodulation instrument to the test channel corresponding to the port; a target downtilt angle for the port is obtained, and a downtilt angle adjustment instruction is sent to the port; after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, a test start instruction is sent to the intermodulation instrument; a passive intermodulation test result is obtained, and the passive intermodulation test result is compared with a passive intermodulation test threshold; if it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated and the step of obtaining the target downtilt angle of the port is returned to, until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold; The intermodulation instrument is used to receive a test start instruction, start a passive intermodulation test based on the test channel corresponding to the port in response to the test start instruction, determine a passive intermodulation test result, and return the passive intermodulation test result to the software control center; The matrix switch is used to connect the multiple test channels of the intermodulation instrument with the multiple ports of the base station antenna, and is also used to switch the test channels of the intermodulation instrument to the test channels corresponding to the ports in response to a test channel switching instruction; The base station antenna is configured to adjust the downtilt angle of the base station antenna to the target downtilt angle in response to a downtilt angle adjustment instruction.

7. A test device for a base station antenna, characterized in that: The device comprises: For each of the multiple ports of the base station antenna, perform the following operations: a matrix switch control module, configured to send a test channel switching instruction to the matrix switch for the port, so that the matrix switch switches the test channel of the intermodulation instrument to the test channel corresponding to the port according to the port; the matrix switch is configured to connect the multiple test channels of the intermodulation instrument with the multiple ports of the base station antenna; a base station antenna control module, configured to obtain a target downtilt angle of the port and send a downtilt angle adjustment instruction to the port; An intermodulation instrument driving module is configured to, after determining that the downtilt angle of the base station antenna is adjusted to the target downtilt angle, send a test start instruction to the intermodulation instrument so that the intermodulation instrument starts a passive intermodulation test based on the test channel corresponding to the port; A passive intermodulation test result judgment module is used to obtain a passive intermodulation test result and compare the passive intermodulation test result with a passive intermodulation test threshold; If it is determined that the passive intermodulation test result is greater than the passive intermodulation test threshold, the target downtilt angle is updated and the process returns to the step of obtaining the target downtilt angle of the port until the passive intermodulation test result is less than or equal to the passive intermodulation test threshold.

8. An electronic device, characterized in that: include: processor and memory; The memory is used to store the processor executable instructions; The processor is configured to execute the instructions to implement the base station antenna testing method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the base station antenna testing method according to any one of claims 1 to 5.

10. A computer program product, characterized in that The computer program product includes a computer program. When the computer program is executed by a processor of an electronic device, the processor is enabled to perform the base station antenna testing method according to any one of claims 1 to 5.

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