Intermodulation detection method, electronic equipment and computer readable medium
By performing intermodulation detection of base station channels without interrupting services, the problem of intermodulation detection of base stations in the prior art requires interruption of services and tower access in the existing technology, an efficient and simple detection process is realized, and detection efficiency and reliability are improved. sex.
Patent Information
- Application Number
- CN202310666000.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-06
- Publication Date
- 2024-12-06
AI Technical Summary
The prior art requires interruption of service when intermodulation detection in base stations and towers are required, which affects service operation and is complex in the process, especially in FDD standard base stations, the intermodulation of radio frequency remote unit (RRU) has increasingly affected wireless performance. The bigger.
Provide a method of intermodulation detection without interrupting services, receives the key performance indicator parameters of the base station through the network management server, sends intermodulation detection commands, and does not affect services to the channels that require intermodulation detection. Perform detection and obtain intermodulation detection results, including intermodulation power of all channels, so as to achieve detection without tower entry.
It realizes intermodulation detection of channels without interrupting services, simplifies the detection process, avoids business interruption and tower requirements, and improves detection efficiency and reliability.
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Figure CN119095094A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of communication technology, and in particular to an intermodulation detection method, an electronic device, and a computer-readable medium. Background Art
[0002] With the development of communication technology, communication base stations have also evolved from the second generation of communication technology (2G, the 2 nd The fifth generation of communication technology (5G) has evolved to the fifth generation of communication technology (5G, the 5 th Generation), according to whether the spectrum is paired, it is divided into frequency division duplex (FDD) and time division duplex (TDD). Both standards have their own inherent deficiencies; TDD standard has high requirements for time synchronization; FDD standard intermodulation seriously affects service traffic. With the rapid development of mobile communication support router (MSR, Mobile Support Router) base stations, the remote radio frequency unit (RRU, Remote Radio Frequency Unit) in the FDD base station has shown the characteristics of "large working bandwidth", "multi-frequency", "large top power" and "large number of antennas", resulting in the intermodulation of RRU in the FDD base station having an increasing impact on wireless performance.
[0003] When deploying base stations, RRUs and antennas are purchased from different manufacturers, which leads to docking problems. It is particularly important to identify the cause of the problem and the solution. The usual solution requires the use of special test instruments for testing while interrupting the service. This solution requires interrupting the service and going up the tower, which affects the service operation and the implementation process is also relatively complicated. Summary of the invention
[0004] Embodiments of the present application provide an intermodulation detection method, an electronic device, and a computer-readable medium.
[0005] In a first aspect, an embodiment of the present application provides an intermodulation detection method, which is applied to a base station, and the method includes: receiving an intermodulation detection command sent by a network management server when it detects that a key performance indicator parameter of the base station meets a preset condition; performing intermodulation detection on a channel that needs to be intermodulated without interrupting the service to obtain an intermodulation detection result; wherein the intermodulation detection result includes: the intermodulation power of all channels that need to be intermodulated; and sending the intermodulation detection result to the network management server.
[0006] In a second aspect, an embodiment of the present application provides an intermodulation detection method, which is applied to a network management server, and the method includes: obtaining key performance indicator parameters of a base station; when the key performance indicator parameters of the base station meet preset conditions, sending an intermodulation detection command to the base station; receiving the intermodulation detection result sent by the base station; wherein the intermodulation detection result includes: the intermodulation power of all channels of the base station that need to perform intermodulation detection.
[0007] In a third aspect, an embodiment of the present application provides an electronic device, comprising: at least one processor; a memory, wherein at least one program is stored in the memory, and when the at least one program is executed by the at least one processor, any one of the above-mentioned intermodulation detection methods is implemented.
[0008] In a fourth aspect, an embodiment of the present application provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned intermodulation detection methods is implemented.
[0009] The intermodulation detection method provided in the embodiment of the present application realizes intermodulation detection of channels without interrupting services, and does not require tower climbing, so the implementation process is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 A flowchart of an intermodulation detection method applied to a base station provided in one embodiment of the present application;
[0011] Figure 2 A schematic diagram of a guard band frequency band in an embodiment of the present application;
[0012] Figure 3 A schematic diagram of a first frequency band and a second frequency band in an embodiment of the present application;
[0013] Figure 4 A flowchart of an intermodulation detection method applied to a network management server provided in another embodiment of the present application;
[0014] Figure 5 A flowchart of an intermodulation detection method provided in Example 1 of an embodiment of the present application;
[0015] Figure 6 A flowchart of an intermodulation detection method provided for Example 2 of an embodiment of the present application;
[0016] Figure 7 A block diagram of an electronic device according to another embodiment of the present application;
[0017] Figure 8 A block diagram of the composition of an intermodulation detection system provided in another embodiment of the present application. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the technical solution of the present application, the intermodulation detection method, electronic device, and computer-readable medium provided by the present application are described in detail below in conjunction with the accompanying drawings.
[0019] Example embodiments will be described more fully below with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, the purpose of providing these embodiments is to make this application thorough and complete and to enable those skilled in the art to fully understand the scope of this application.
[0020] In the absence of conflict, the embodiments of the present application and the features therein may be combined with each other.
[0021] As used herein, the term "and / or" includes any and all combinations of at least one of the associated listed items.
[0022] The terms used herein are only used to describe specific embodiments and are not intended to limit the present application. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements and / or components is specified, but the presence or addition of at least one other feature, whole, step, operation, element, component and / or its group is not excluded.
[0023] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this application, and will not be interpreted as having an idealized or overly formal meaning unless explicitly defined herein.
[0024] With the application of 4-port RRU, 8-port RRU, 12-port RRU, and 32-port FDD massive multiple input multiple output (MIMO) (FMM, FDD Massivion MIMO), the number of channels in the radio frequency unit is increasing. The intermodulation between the connection of each channel and the antenna, as well as the intermodulation between channels have become the focus of operators.
[0025] Under high power conditions, some passive components that were originally thought to have linear characteristics, such as filters, duplexers, connectors, antennas, and transmission cables, all show nonlinear characteristics. Therefore, it is possible to cause modulation between signals of different frequencies, which is Passive Inter-Modulation (PIM). The result of PIM is that the effective transmission signal is distorted, noise and clutter are generated, and the signal transmission rate is affected. Therefore, intermodulation detection is required. At present, it is necessary to use special test instruments to detect it under the condition of interrupting the service. This solution requires interrupting the service and going up the tower, which affects the service operation and the implementation process is also relatively complicated.
[0026] Figure 1 A flowchart of an intermodulation detection method applied to a base station provided in one embodiment of the present application.
[0027] First, refer to Figure 1 An embodiment of the present application provides an intermodulation detection method, which is applied to a base station. The method includes:
[0028] Step 100: receiving an intermodulation detection command sent by a network management server when detecting that a key performance indicator (KPI) parameter of a base station meets a preset condition.
[0029] In some exemplary embodiments, the KPI parameters include: noise interference.
[0030] In some exemplary embodiments, the KPI parameters also include: uplink traffic and transmit power.
[0031] In some exemplary embodiments, obtaining the KPI parameter of the base station includes: obtaining the sum of the KPI parameters of all channels of the base station.
[0032] In some exemplary embodiments, the sum of the KPI parameters of all channels includes: the sum of the noise interference of all channels.
[0033] In some exemplary embodiments, the sum of the KPI parameters of all channels also includes: the sum of the uplink traffic of all channels and the sum of the transmit power of all channels.
[0034] In some exemplary embodiments, obtaining the KPI parameters of the base station includes: respectively obtaining the KPI parameters of each channel of the base station.
[0035] In some exemplary embodiments, the KPI parameter of the channel includes: noise interference of the channel.
[0036] In some exemplary embodiments, the KPI parameters of the channel also include: uplink traffic of the channel and transmit power of the channel.
[0037] In some exemplary embodiments, the KPI parameter of the base station satisfies a preset condition including: noise interference is continuously greater than or equal to a first preset threshold value within a preset time period.
[0038] In some exemplary embodiments, the KPI parameters of the base station satisfying the preset conditions also include: the transmit power is continuously greater than or equal to the second preset threshold within a preset time period, and the uplink traffic is continuously less than or equal to the third preset threshold within a preset time period.
[0039] In some exemplary embodiments, the KPI parameter of the base station satisfies a preset condition includes: the sum of the KPI parameters of all channels of the base station satisfies a preset condition.
[0040] In some exemplary embodiments, the sum of the KPI parameters of all channels of the base station meeting a preset condition includes: the sum of the noise interference of all channels is continuously greater than or equal to a first preset threshold within a preset time period.
[0041] In some exemplary embodiments, the first preset threshold may be a rated power backoff fixed power of the base station.
[0042] In some exemplary embodiments, the fixed power may be 6 decibels (db).
[0043] In some exemplary embodiments, the sum of the KPI parameters of all channels of the base station satisfies the preset conditions and also includes: the sum of the transmission power of all channels is continuously greater than or equal to a second preset threshold within a preset time period, and the sum of the uplink traffic of all channels is greater than or equal to a third preset threshold within a preset time period.
[0044] In some exemplary embodiments, the KPI parameter of the base station meeting a preset condition includes: a KPI parameter of at least one channel of the base station meeting a preset condition.
[0045] In some exemplary embodiments, the KPI parameter of at least one channel of the base station satisfies a preset condition, including: noise interference of at least one channel is continuously greater than or equal to a first preset threshold within a preset time period.
[0046] In some exemplary embodiments, the KPI parameters of at least one channel of the base station satisfying the preset conditions also include: the transmission power of at least one channel is continuously greater than or equal to a second preset threshold within a preset time period, and the uplink traffic of at least one channel is greater than or equal to a third preset threshold within a preset time period.
[0047] In some exemplary embodiments, the intermodulation detection command includes: an identifier of a channel on which intermodulation detection is required.
[0048] In some exemplary embodiments, when the intermodulation detection command does not include a channel identifier, the intermodulation detection command is used to instruct to perform intermodulation detection on all channels.
[0049] In some exemplary embodiments, when the intermodulation detection command includes: an identifier of a channel on which the intermodulation detection needs to be performed, the intermodulation detection command is used to instruct to perform the intermodulation detection on the channel on which the intermodulation detection needs to be performed.
[0050] In some exemplary embodiments, the channels that require intermodulation detection include channels whose KPI parameters meet preset conditions.
[0051] Step 101, performing intermodulation detection on channels that need to be tested for intermodulation without interrupting services to obtain intermodulation detection results; wherein the intermodulation detection results include: intermodulation power of all channels that need to be tested for intermodulation.
[0052] In some exemplary embodiments, performing intermodulation detection on channels that need to be intermodulated without interrupting services to obtain intermodulation detection results includes: sending a test signal (TS, Test Signal) sequence on the i-th channel that needs to be intermodulated; wherein i is any integer from 1 to N, and N is the number of channels that need to be intermodulated; measuring the received power at the frequency of the uplink virtual carrier according to the frequency of the TS sequence; determining the intermodulation power of the i-th channel that needs to be intermodulated according to the transmit power and the receive power of the TS sequence; adding 1 to i, and continuing to execute the step of sending the TS sequence on the i-th channel that needs to be intermodulated according to the downlink working frequency band of the i-th channel that needs to be intermodulated, until the intermodulation power of all channels that need to be intermodulated is obtained.
[0053] In some exemplary embodiments, when the intermodulation detection command does not include a channel identifier, the channels that need to perform intermodulation detection include all channels of the base station.
[0054] In some exemplary embodiments, when the intermodulation detection command includes: an identifier of a channel on which intermodulation detection is required, the channel on which intermodulation detection is required includes a channel corresponding to the channel identifier included in the intermodulation detection command.
[0055] In some exemplary embodiments, the signal used to send the service data may be a broadband signal or a narrowband signal.
[0056] In some exemplary embodiments, there are currently five mobile communication standards, broadband signals include Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), and New Radio (NR); narrowband signals include Narrow Band (NB) and Global System for Mobile Communications (GSM).
[0057] In some exemplary embodiments, for a broadband signal, sending a TS sequence on the i-th channel of the base station that needs to perform intermodulation detection includes: sending a TS sequence on the i-th channel of the base station that needs to perform intermodulation detection according to the downlink operating frequency band of the i-th channel of the base station that needs to perform intermodulation detection.
[0058] In some exemplary embodiments, according to the downlink operating frequency band of the i-th channel of the base station that needs intermodulation detection, sending a TS sequence on the i-th channel of the base station that needs intermodulation detection includes: determining a transmission frequency point of the TS sequence according to at least one of a guard band frequency band of the downlink operating frequency band of the i-th channel of the base station that needs intermodulation detection and an overlapping frequency band of two adjacent carriers; and sending the TS sequence at the transmission frequency point of the TS sequence of the i-th channel that needs intermodulation detection.
[0059] In some exemplary embodiments, the transmission frequency point of the TS sequence is located in at least one of the guard band and the overlapping band. Since the guard band and the overlapping band are not used to send service data, they play an isolation role, and therefore will not interfere with the service data in the downlink working band, and intermodulation detection is achieved without causing spectrum interference.
[0060] In some exemplary embodiments, the transmission frequency point of the TS sequence is located in at least one of a guard band frequency band and an overlapping frequency band.
[0061] In some exemplary embodiments, the guard band frequency band includes an upper guard band frequency band adjacent to the highest frequency point of the downlink operating frequency band, and a lower guard band frequency band adjacent to the lowest frequency point of the downlink operating frequency band, such as Figure 2 shown.
[0062] In some exemplary embodiments, the frequency ranges of the guard bands corresponding to different standards are different. For example, the frequency range of the guard band corresponding to a certain standard is 100 to 500 kilohertz (kHz).
[0063] In some exemplary embodiments, there is an overlapping frequency band between any two adjacent carriers, and therefore, there may be two or more overlapping frequency bands.
[0064] In some exemplary embodiments, the frequency band ranges of overlapping frequency bands corresponding to different standards are different. For example, the frequency band range of the overlapping frequency band corresponding to a certain standard is 200 to 400 kHz.
[0065] In some exemplary embodiments, the TS sequence includes: two single-tone signals (CW, Continuous Wave) with different transmission frequencies.
[0066] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes: determining the transmission frequency points of the two CW signals to be any two frequency points in the same guard band frequency band. Here, it can be any one of the upper guard band frequency band and the lower guard band frequency band.
[0067] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes: determining the transmission frequency points of the two CW signals as any two frequency points in the same overlapping frequency band.
[0068] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes: determining the transmission frequency point of the first CW signal as any frequency point in the first guard band frequency band, and determining the transmission frequency point of the second CW signal as any frequency point in the second guard band frequency band.
[0069] In some exemplary embodiments, the first guard band frequency band is an upper guard band frequency band, and the second guard band frequency band is a lower guard band frequency band.
[0070] In some exemplary embodiments, the first guard band frequency band is a lower guard band frequency band, and the second guard band frequency band is an upper guard band frequency band.
[0071] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes: determining the transmission frequency point of the first CW signal as any frequency point in the first overlapping frequency band, and determining the transmission frequency point of the second CW signal as any frequency point in the second overlapping frequency band.
[0072] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes: determining the transmission frequency point of the first CW signal as any frequency point in the guard band frequency band, and determining the transmission frequency point of the second CW signal as any frequency point in the overlapping frequency band.
[0073] In some exemplary embodiments, for a narrowband signal, sending a TS sequence on the i-th channel of a base station that needs to perform intermodulation detection includes: determining a transmission frequency point of a test signal sequence according to a downlink operating frequency point of the i-th channel that needs to perform intermodulation detection; and sending the TS sequence at the transmission frequency point of the TS sequence of the i-th channel that needs to perform intermodulation detection.
[0074] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection includes: determining the first frequency band and the second frequency band according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection; wherein, Figure 3 As shown, the first frequency band is a frequency band between the first frequency and the second frequency for shifting the downlink operating frequency of the i-th channel that needs intermodulation detection downward, and the second frequency band is a frequency band between the third frequency and the fourth frequency for shifting the downlink operating frequency of the i-th channel that needs intermodulation detection upward; the transmission frequency of the TS sequence is determined according to the first frequency band and the second frequency band.
[0075] In some exemplary embodiments, determining the transmission frequency points of the TS sequence according to the first frequency band and the second frequency band includes: determining the transmission frequency points of the two CW signals to be any two frequency points in the first frequency band.
[0076] In some exemplary embodiments, determining the transmission frequency points of the TS sequence according to the first frequency band and the second frequency band includes: determining the transmission frequency points of the two CW signals to be any two frequency points in the second frequency band.
[0077] In some exemplary embodiments, determining the transmission frequency point of the TS sequence according to the first frequency band and the second frequency band includes: determining the transmission frequency point of the first CW signal to be any frequency point in the first frequency band, and determining the transmission frequency point of the second CW signal to be any frequency point in the second frequency band.
[0078] In some exemplary embodiments, sending the TS sequence at a transmission frequency point of the TS sequence of the i-th channel that needs to perform intermodulation detection includes: sending two CW signals at two determined frequency points.
[0079] In some exemplary embodiments, sending the TS sequence at the transmission frequency point of the TS sequence of the i-th channel that needs to perform intermodulation detection includes: sending the TS sequence at the transmission frequency point of the TS sequence of the i-th channel that needs to perform intermodulation detection when the traffic volume is less than or equal to a fourth preset threshold.
[0080] In some exemplary embodiments, the transmit power of the CW signal may be a standard transmit power for intermodulation detection or a maximum transmit power of the RRU.
[0081] In some exemplary embodiments, the standard transmit power may be 43 decibel relative to one milliwatt (dbm).
[0082] In some exemplary embodiments, the maximum transmit power may be -3db.
[0083] In some exemplary embodiments, measuring the received power at the frequency of the uplink virtual carrier according to the frequency of the TS sequence includes: determining the frequency of the uplink virtual carrier according to the frequency of the TS sequence; and measuring the received power at the frequency of the uplink virtual carrier.
[0084] In some exemplary embodiments, determining the frequency of the uplink virtual carrier according to the frequency of the TS sequence includes: determining the frequency of nf1+mf2 and nf1-mf2 located in the uplink operating frequency band of the base station as the frequency of the uplink virtual carrier; wherein m+n is 3 or 5, f1 is the transmission frequency of the first CW signal, and f2 is the transmission frequency of the second CW signal.
[0085] In some exemplary embodiments, when the ith channel of the base station that needs to perform intermodulation detection sends a TS sequence, corresponding service data may be sent on the ith channel that needs to perform intermodulation detection.
[0086] In some exemplary embodiments, determining the intermodulation power of the i-th channel requiring intermodulation detection according to the transmit power and receive power of the TS sequence includes: determining the intermodulation power of the i-th channel requiring intermodulation detection as the difference between the transmit power and the receive power of the TS sequence.
[0087] Step 102: Send the intermodulation detection result to the network management server.
[0088] The intermodulation detection method provided in the embodiment of the present application realizes intermodulation detection of channels without interrupting services, and does not require tower climbing, so the implementation process is relatively simple.
[0089] Figure 4 A flowchart of an intermodulation detection method applied to a network management server provided in another embodiment of the present application.
[0090] Second, refer to Figure 4 Another embodiment of the present application provides an intermodulation detection method, which is applied to a network management server, and the method includes:
[0091] Step 400: Acquire KPI parameters of the base station.
[0092] In some exemplary embodiments, the KPI parameters include: noise interference.
[0093] In some exemplary embodiments, the KPI parameters also include: uplink traffic and transmit power.
[0094] In some exemplary embodiments, obtaining the KPI parameter of the base station includes: obtaining the sum of the KPI parameters of all channels of the base station.
[0095] In some exemplary embodiments, the sum of the KPI parameters of all channels includes: the sum of the noise interference of all channels.
[0096] In some exemplary embodiments, the sum of the KPI parameters of all channels also includes: the sum of the uplink traffic of all channels and the sum of the transmit power of all channels.
[0097] In some exemplary embodiments, obtaining the KPI parameters of the base station includes: respectively obtaining the KPI parameters of each channel of the base station.
[0098] In some exemplary embodiments, the KPI parameter of the channel includes: noise interference of the channel.
[0099] In some exemplary embodiments, the KPI parameters of the channel also include: uplink traffic of the channel and transmit power of the channel.
[0100] Step 401: When the KPI parameter of the base station meets a preset condition, an intermodulation detection command is sent to the base station.
[0101] In some exemplary embodiments, the KPI parameter of the base station satisfies a preset condition including: the transmission power is continuously greater than or equal to a first preset threshold value within a preset time period.
[0102] In some exemplary embodiments, the first preset threshold may be a rated power backoff fixed power of the base station.
[0103] In some exemplary embodiments, the fixed power may be 6db.
[0104] In some exemplary embodiments, the KPI parameters of the base station satisfying the preset conditions also include: the noise interference is continuously greater than or equal to the second preset threshold within the preset time period, and the uplink traffic is continuously less than or equal to the third preset threshold within the preset time period.
[0105] In some exemplary embodiments, the KPI parameter of the base station satisfies a preset condition includes: the sum of the KPI parameters of all channels of the base station satisfies a preset condition.
[0106] In some exemplary embodiments, the sum of the KPI parameters of all channels of the base station satisfying a preset condition includes: the sum of the transmit powers of all channels continuously being greater than or equal to a first preset threshold within a preset time period.
[0107] In some exemplary embodiments, the sum of the KPI parameters of all channels of the base station satisfies the preset conditions and also includes: the sum of the noise interference of all channels is continuously greater than or equal to a second preset threshold within a preset time period, and the sum of the uplink traffic of all channels is greater than and continuously less than or equal to a third preset threshold within a preset time period.
[0108] In some exemplary embodiments, the KPI parameter of the base station meeting a preset condition includes: a KPI parameter of at least one channel of the base station meeting a preset condition.
[0109] In some exemplary embodiments, the KPI parameter of at least one channel of the base station satisfies a preset condition, including: the transmit power of the at least one channel is continuously greater than or equal to a first preset threshold within a preset time period.
[0110] In some exemplary embodiments, the KPI parameters of at least one channel of the base station satisfying the preset conditions also include: the noise interference of at least one channel is continuously greater than or equal to a second preset threshold within a preset time period, and the uplink traffic of at least one channel is greater than or equal to a third preset threshold within a preset time period.
[0111] In some exemplary embodiments, the intermodulation detection command includes: an identifier of a channel on which intermodulation detection is required.
[0112] In some exemplary embodiments, when the intermodulation detection command does not include a channel identifier, the intermodulation detection command is used to instruct to perform intermodulation detection on all channels.
[0113] In some exemplary embodiments, when the intermodulation detection command includes: an identifier of a channel on which the intermodulation detection needs to be performed, the intermodulation detection command is used to instruct to perform the intermodulation detection on the channel on which the intermodulation detection needs to be performed.
[0114] In some exemplary embodiments, the channels that require intermodulation detection include channels whose KPI parameters meet preset conditions.
[0115] Step 402, receiving an intermodulation detection result sent by a base station; wherein the intermodulation detection result includes: intermodulation power of all channels of the base station that need to perform intermodulation detection.
[0116] In some exemplary embodiments, after receiving the intermodulation detection results sent by the base station, the method also includes: determining a backoff power based on the intermodulation detection results, and selecting a channel that requires power adjustment from channels that require intermodulation detection; and backing off the transmission power of the selected channel based on the backoff power.
[0117] In some exemplary embodiments, the backoff power is the backoff power corresponding to the highest standard supported by the base station. For example, if the base station supports LTE and NR, the backoff power of LTE and NR is selected.
[0118] In some exemplary embodiments, the selected channel may be at least one channel among channels requiring intermodulation detection, among channels whose intermodulation power is greater than or equal to a fifth preset threshold, and among other channels except the logic channel.
[0119] In some exemplary embodiments, a logical channel refers to a channel for transmitting a logical signal.
[0120] In some exemplary embodiments, backing off the transmit power of a selected channel according to the back-off power includes: backing off the transmit power of the selected channel at intervals of a fixed step power; obtaining the noise interference of the base station; and when the noise interference is continuously greater than or equal to a second preset threshold value within a preset time period, continuing to perform the step of backing off the transmit power of the selected channel at intervals of a fixed step power until the noise interference is continuously less than the second preset threshold value within the preset time period, or the total backed-off power is the back-off power.
[0121] In some exemplary embodiments, backing off the transmit power of the selected channel at intervals of a fixed step power includes: subtracting the fixed step power from the current transmit power of the selected channel each time the backoff is performed.
[0122] In some exemplary embodiments, after receiving the intermodulation detection result sent by the base station, the method further includes: generating an alarm message when the intermodulation detection result does not meet the standard conditions, and the alarm message is used to prompt the construction personnel to replace the antenna system or re-construct.
[0123] In some exemplary embodiments, the intermodulation detection result does not meet the standard condition includes: the intermodulation power of at least one channel is greater than or equal to a fifth preset threshold.
[0124] In some exemplary embodiments, the warning information may include an identification of a channel that does not meet the standard condition.
[0125] In order to present the intermodulation detection method of the embodiment of the present application more completely, two examples are listed below for detailed description. The listed examples are not used to limit the protection scope of the embodiment of the present application.
[0126] Example 1
[0127] This example describes an intermodulation detection method for a base station that has been put into use in a communication system. Since the hardware of the base station that has been put into use in the communication system cannot be replaced, the interference caused by the intermodulation signal can only be reduced by power backoff.
[0128] like Figure 5 As shown, the intermodulation detection method of this example includes:
[0129] Step 500, the network management server obtains the sum of KPI parameters of all channels of the base station; wherein the sum of KPI parameters of all channels includes: the sum of transmit power of all channels, the sum of uplink traffic of all channels, and the sum of noise interference of all channels.
[0130] In step 501, the network management server determines whether the sum of the KPI parameters of all channels of the base station meets the preset conditions. If the sum of the KPI parameters of all channels meets the preset conditions, step 502 is continued; if the sum of the KPI parameters of all channels does not meet the preset conditions, this process is terminated.
[0131] Among them, the sum of the KPI parameters of all channels meets the preset conditions, including: the sum of the noise interference of all channels is continuously greater than or equal to the first preset threshold within the preset time period, and the sum of the transmission power of all channels is continuously greater than or equal to the second preset threshold within the preset time period, and the sum of the uplink traffic of all channels is greater than and continuously less than or equal to the third preset threshold within the preset time period.
[0132] Among them, the sum of the KPI parameters of all channels does not meet the preset conditions, including: the sum of the noise interference of all channels is continuously less than the first preset threshold within the preset time period, or the sum of the transmission power of all channels is continuously less than the second preset threshold within the preset time period, or the sum of the uplink traffic of all channels is greater than the third preset threshold within the preset time period.
[0133] Step 502: The network management server sends an intermodulation detection command to the base station.
[0134] Step 503, the base station determines that the transmission frequency points of the two CW signals of the TS sequence sent in the i-th channel that needs to perform intermodulation detection are any two frequency points in the protection band of the downlink working frequency band of the i-th channel that needs to perform intermodulation detection of the base station; and sends two CW signals at the determined two frequency points.
[0135] Step 504, the base station determines that the frequency point in nf1+mf2 and nf1-mf2 located in the uplink working frequency band of the base station is the frequency point of the uplink virtual carrier; wherein m+n is 3 or 5, f1 is the transmission frequency point of the first CW signal, and f2 is the transmission frequency point of the second CW signal; the received power is measured at the frequency point of the uplink virtual carrier; and the intermodulation power of the i-th channel requiring intermodulation detection is determined as the difference between the transmission power and the receiving power of the TS sequence.
[0136] Step 505, the base station determines whether i is greater than or equal to N. If i is less than N, i is increased by 1 and step 503 is continued; if i is greater than or equal to N, step 506 is continued; wherein N is the number of channels that need to perform intermodulation detection.
[0137] Step 506: The base station sends the intermodulation detection result to the network management server; wherein the intermodulation detection result includes: the intermodulation power of all channels that need to be intermodulated.
[0138] Step 507: The network management server determines the channel that needs power backoff according to the intermodulation detection result.
[0139] The channels that need to perform power backoff include channels that need to perform intermodulation detection and whose intermodulation power is greater than or equal to a fifth preset threshold.
[0140] Step 508: The network management server determines the backoff power and selects a channel that needs power adjustment from the channels that need power backoff.
[0141] Step 509: The network management server backs off the transmission power of the selected channel according to the back-off power.
[0142] Example 2
[0143] This example describes the intermodulation detection method for a newly-built base station. Since the newly-built base station has not been put into use in the communication system, the antenna system can be replaced or rebuilt.
[0144] like Figure 6 As shown, the intermodulation detection method of this example includes:
[0145] Step 600: The network management server obtains the sum of KPI parameters of all channels of the base station; wherein the sum of KPI parameters of all channels includes: the sum of noise interference of all channels.
[0146] In step 601, the network management server determines whether the sum of the KPI parameters of all channels of the base station meets the preset conditions. If the sum of the KPI parameters of all channels meets the preset conditions, step 602 is continued; if the sum of the KPI parameters of all channels does not meet the preset conditions, this process is terminated.
[0147] The sum of the KPI parameters of all channels meeting a preset condition includes: the sum of the noise interference of all channels is continuously greater than or equal to a second preset threshold within a preset time period.
[0148] The fact that the sum of the KPI parameters of all channels does not satisfy the preset condition includes: the sum of the noise interference of all channels is continuously less than the second preset threshold value within a preset time period.
[0149] Step 602: The network management server sends an intermodulation detection command to the base station.
[0150] Step 603, the base station determines that the transmission frequency points of the two CW signals of the TS sequence sent in the i-th channel that needs intermodulation detection are any two frequency points in the protection band of the downlink working frequency band of the i-th channel that needs intermodulation detection of the base station; and sends two CW signals at the determined two frequency points.
[0151] Step 604, the base station determines that the frequency point in nf1+mf2 and nf1-mf2 located in the uplink working frequency band of the base station is the frequency point of the uplink virtual carrier; wherein m+n is 3 or 5, f1 is the transmission frequency point of the first CW signal, and f2 is the transmission frequency point of the second CW signal; the received power is measured at the frequency point of the uplink virtual carrier; and the intermodulation power of the i-th channel requiring intermodulation detection is determined as the difference between the transmission power and the receiving power of the TS sequence.
[0152] Step 605, the base station determines whether i is greater than or equal to N. If i is less than N, i is increased by 1 and step 603 is continued; if i is greater than or equal to N, step 606 is continued; wherein N is the number of channels requiring intermodulation detection.
[0153] Step 606: The base station sends the intermodulation detection result to the network management server; wherein the intermodulation detection result includes: the intermodulation power of all channels that need to be intermodulated.
[0154] Step 607, the network management server determines whether the intermodulation detection result meets the standard conditions. If the intermodulation detection result meets the standard conditions, the process ends; if the intermodulation detection result does not meet the standard conditions, step 607 is continued.
[0155] Step 608: The network management server generates an alarm message, which is used to prompt the construction personnel to replace the antenna system or re-construct.
[0156] Thirdly, refer to Figure 7Another embodiment of the present application provides an electronic device, including: at least one processor 701; a memory 702, wherein at least one program is stored in the memory 702, and when the at least one program is executed by the at least one processor 701, any one of the above-mentioned intermodulation detection methods is implemented.
[0157] In some exemplary embodiments, the electronic device further includes: one or more I / O interfaces 703 connected between the processor 701 and the memory 702 , and configured to implement information interaction between the processor 701 and the memory 702 .
[0158] Among them, the processor 701 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 702 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I / O interface (read-write interface) 703 is connected between the processor 701 and the memory 702, and can realize information interaction between the processor 701 and the memory 702, including but not limited to a data bus (Bus), etc.
[0159] In some embodiments, the processor 701 , the memory 702 , and the I / O interface 703 are connected to each other via a bus 704 , and further connected to other components of the computing device.
[0160] In a fourth aspect, another embodiment of the present application provides a computer-readable medium having a computer program stored thereon, wherein the computer program implements any one of the above-mentioned intermodulation detection methods when executed by a processor.
[0161] Figure 8 A block diagram of the composition of an intermodulation detection system provided in another embodiment of the present application.
[0162] Fifth, refer to Figure 8 Another embodiment of the present application provides an intermodulation detection system, including: a base station 801 and a network management server 802.
[0163] Among them, the network management server 802 is used to obtain the key performance indicator parameters of the base station; when the key performance indicator parameters of the base station meet the preset conditions, send an intermodulation detection command to the base station; receive the intermodulation detection result sent by the base station; wherein the intermodulation detection result includes: the intermodulation power of all channels of the base station that need to perform intermodulation detection.
[0164] Base station 801 is used to receive an intermodulation detection command sent by a network management server when it detects that a key performance indicator parameter of the base station meets a preset condition; perform intermodulation detection on a channel that needs to be intermodulated without interrupting the service to obtain an intermodulation detection result; wherein the intermodulation detection result includes: the intermodulation power of all channels that need to be intermodulated; and send the intermodulation detection result to the network management server.
[0165] In some exemplary embodiments, the base station 801 is specifically used to implement intermodulation detection on channels that need to be intermodulated without interrupting business and obtain intermodulation detection results in the following manner: sending a test signal sequence on the i-th channel that needs to be intermodulated; wherein i is any integer from 1 to N, and N is the number of channels that need to be intermodulated; measuring the received power at the frequency of the uplink virtual carrier according to the frequency of the test signal sequence; determining the intermodulation power of the i-th channel that needs to be intermodulated according to the transmission power and the received power of the test signal sequence; adding 1 to i, and continuing to execute the step of sending a test signal sequence on the i-th channel that needs to be intermodulated according to the downlink working frequency band of the i-th channel that needs to be intermodulated, until the intermodulation power of all channels that need to be intermodulated is obtained.
[0166] In some exemplary embodiments, the base station 801 is specifically used to implement sending of a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection in the following manner: determining a transmission frequency point of the test signal sequence based on at least one of a protection band frequency band of a downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and an overlapping frequency band of two adjacent carriers; and sending the test signal sequence at the transmission frequency point of the test signal sequence of the i-th channel that needs to perform intermodulation detection.
[0167] In some exemplary embodiments, the test signal sequence includes: two single tone signals with different transmission frequencies.
[0168] In some exemplary embodiments, the base station 801 is specifically used to determine the transmission frequency point of the test signal sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers in any one of the following ways: determine the transmission frequency points of the two single-tone signals to be any two frequency points in the same guard band frequency band; determine the transmission frequency points of the two single-tone signals to be any two frequency points in the same overlapping frequency band; determine the transmission frequency point of the first single-tone signal to be any one frequency point in the first guard band frequency band, and determine the transmission frequency point of the second single-tone signal to be any one frequency point in the second guard band frequency band; determine the transmission frequency point of the first single-tone signal to be any one frequency point in the first overlapping frequency band, and determine the transmission frequency point of the second single-tone signal to be any one frequency point in the second overlapping frequency band; determine the transmission frequency point of the first single-tone signal to be any one frequency point in the guard band frequency band, and determine the transmission frequency point of the second single-tone signal to be any one frequency point in the overlapping frequency band.
[0169] In some exemplary embodiments, the base station 801 is specifically used to implement sending a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection in the following manner: determining a transmission frequency point of the test signal sequence according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection; and sending the test signal sequence at the transmission frequency point of the test signal sequence of the i-th channel that needs to perform intermodulation detection.
[0170] In some exemplary embodiments, the base station 801 is specifically used to implement the following method to determine the transmission frequency point of the test signal sequence according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection: determine the first frequency band and the second frequency band according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection; wherein the first frequency band is a frequency band between the first frequency and the second frequency by shifting the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection downward, and the second frequency band is a frequency band between the third frequency and the fourth frequency by shifting the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection upward; determine the transmission frequency point of the test signal sequence according to the first frequency band and the second frequency band.
[0171] In some exemplary embodiments, the base station 801 is specifically used to implement determining the transmission frequency point of the test signal sequence according to the first frequency band and the second frequency band in any one of the following ways: determining the transmission frequency points of the two single-tone signals to be any two frequency points in the first frequency band; determining the transmission frequency points of the two single-tone signals to be any two frequency points in the second frequency band; determining the transmission frequency point of the first single-tone signal to be any one frequency point in the first frequency band, and determining the transmission frequency point of the second single-tone signal to be any one frequency point in the second frequency band.
[0172] In some exemplary embodiments, the base station 801 is specifically used to implement measuring the received power at the frequency of the uplink virtual carrier according to the frequency of the test signal sequence in the following manner: determining the frequency of the uplink virtual carrier according to the frequency of the test signal sequence; and measuring the received power at the frequency of the uplink virtual carrier.
[0173] In some exemplary embodiments, the base station 801 is specifically used to determine the frequency of the uplink virtual carrier according to the frequency of the test signal sequence in the following manner: determine the frequency nf1+mf2 and nf1-mf2 located in the uplink working frequency band of the base station as the frequency of the uplink virtual carrier; wherein m+n is 3 or 5, f1 is the transmission frequency of the first single-tone signal, and f2 is the transmission frequency of the second single-tone signal.
[0174] In some exemplary embodiments, the base station 801 is further configured to: when the i-th channel of the base station that needs to perform intermodulation detection sends a test signal sequence, send corresponding service data on the i-th channel that needs to perform intermodulation detection.
[0175] In some exemplary embodiments, the network management server 802 is specifically used to obtain the key performance indicator parameters of the base station in the following manner: obtaining the sum of the key performance indicator parameters of all channels of the base station; or, obtaining the key performance indicator parameters of each channel of the base station separately.
[0176] In some exemplary embodiments, the network management server 802 is specifically used to implement the key performance indicator parameters of the base station meeting the preset conditions in the following manner: the sum of the key performance indicator parameters of all channels of the base station meets the preset conditions; or the key performance indicator parameters of at least one channel of the base station meet the preset conditions.
[0177] In some exemplary embodiments, the key performance indicator parameters include: noise interference; the key performance indicator parameters of the base station satisfying a preset condition include: the noise interference continuously being greater than or equal to a first preset threshold value within a preset time period.
[0178] In some exemplary embodiments, the key performance indicator parameters also include: uplink traffic, transmission power; the key performance indicator parameters of the base station satisfying the preset conditions also include: the transmission power is continuously greater than or equal to a second preset threshold within the preset time period, and the uplink traffic is greater than or equal to a third preset threshold within the preset time period.
[0179] In some exemplary embodiments, the network management server 802 is further used to: determine the backoff power according to the intermodulation detection result, and select channels requiring power adjustment from channels requiring intermodulation detection; and backoff the transmission power of the selected channel according to the backoff power.
[0180] In some exemplary embodiments, the network management server 802 is further configured to: generate an alarm message when the intermodulation detection result does not meet the standard conditions, and the alarm message is used to prompt the construction personnel to replace the antenna system or re-construct.
[0181] The specific implementation process of the above intermodulation detection system is the same as the specific implementation process of the intermodulation detection method of the above embodiment, which will not be repeated here.
[0182] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.
[0183] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for limiting purposes. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly noted, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, those skilled in the art will appreciate that various changes in form and detail may be made without departing from the scope of the present application as set forth in the appended claims.
Claims
1. An intermodulation detection method, applied to a base station, comprising: receiving an intermodulation detection command sent by the network management server when detecting that a key performance indicator parameter of a base station meets a preset condition; Performing intermodulation detection on channels that need to be intermodulated without interrupting services to obtain intermodulation detection results; wherein the intermodulation detection results include: intermodulation power of all channels that need to be intermodulated; Sending the intermodulation detection result to the network management server.
2. The intermodulation detection method according to claim 1, wherein: The intermodulation detection is performed on the channel that needs to be intermodulation detected without interrupting the service to obtain the intermodulation detection result, which includes: Sending a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection; wherein i is any integer from 1 to N, and N is the number of channels that need to perform intermodulation detection; Measuring the received power at the frequency of the uplink virtual carrier according to the frequency of the test signal sequence; determining the intermodulation power of the i-th channel requiring intermodulation detection according to the transmit power of the test signal sequence and the received power; Add 1 to i, and continue to execute the step of sending a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection according to the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection, until the intermodulation power of all channels that need to perform intermodulation detection is obtained.
3. The intermodulation detection method according to claim 2, wherein: The sending of a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection comprises: Determine a transmission frequency point of the test signal sequence according to at least one of a guard band frequency band of a downlink working frequency band of an i-th channel of the base station that needs to perform intermodulation detection and an overlapping frequency band of two adjacent carriers; The test signal sequence is sent at a transmission frequency point of the test signal sequence of the i-th channel that needs to perform intermodulation detection.
4. The intermodulation detection method according to claim 3, wherein: The test signal sequence includes: two single-tone signals with different transmission frequencies; The determining of the transmission frequency point of the test signal sequence according to at least one of the guard band frequency band of the downlink working frequency band of the i-th channel of the base station that needs to perform intermodulation detection and the overlapping frequency band of two adjacent carriers includes any one of the following: Determine that the transmission frequency points of the two single-tone signals are any two frequency points in the same guard band frequency band; Determine that the transmission frequency points of the two single-tone signals are any two frequency points in the same overlapping frequency band; Determine that the transmission frequency point of the first single-tone signal is any frequency point in the first guard band frequency band, and determine that the transmission frequency point of the second single-tone signal is any frequency point in the second guard band frequency band; Determine that the transmission frequency point of the first single-tone signal is any frequency point in the first overlapping frequency band, and determine that the transmission frequency point of the second single-tone signal is any frequency point in the second overlapping frequency band; The transmission frequency point of the first single-tone signal is determined to be any frequency point in the guard band frequency band, and the transmission frequency point of the second single-tone signal is determined to be any frequency point in the overlapping frequency band.
5. The intermodulation detection method according to claim 2, wherein: The sending of a test signal sequence on the i-th channel of the base station that needs to perform intermodulation detection comprises: Determine the transmission frequency point of the test signal sequence according to the downlink operating frequency point of the i-th channel that needs to perform intermodulation detection; The test signal sequence is sent at a transmission frequency point of the test signal sequence of the i-th channel that needs to perform intermodulation detection.
6. The intermodulation detection method according to claim 5, wherein: The step of determining the transmission frequency of the test signal sequence according to the downlink operating frequency of the i-th channel that needs to perform intermodulation detection comprises: Determine the first frequency band and the second frequency band according to the downlink operating frequency of the i-th channel that needs to perform intermodulation detection; wherein the first frequency band is a frequency band between the first frequency and the second frequency in which the downlink operating frequency of the i-th channel that needs to perform intermodulation detection is shifted downward, and the second frequency band is a frequency band between the third frequency and the fourth frequency in which the downlink operating frequency of the i-th channel that needs to perform intermodulation detection is shifted upward; A transmission frequency point of the test signal sequence is determined according to the first frequency band and the second frequency band.
7. The intermodulation detection method according to claim 6, wherein: The test signal sequence includes: two single-tone signals with different transmission frequencies; The determining of the transmission frequency point of the test signal sequence according to the first frequency band and the second frequency band includes any one of the following: Determine that the transmission frequency points of the two single-tone signals are any two frequency points in the first frequency band; Determine that the transmission frequency points of the two single-tone signals are any two frequency points in the second frequency band; The transmission frequency point of the first single-tone signal is determined to be any frequency point in the first frequency band, and the transmission frequency point of the second single-tone signal is determined to be any frequency point in the second frequency band.
8. The intermodulation detection method according to any one of claims 2 to 7, wherein: The measuring the received power at the frequency point of the uplink virtual carrier according to the frequency point of the test signal sequence includes: Determine the frequency of the uplink virtual carrier according to the frequency of the test signal sequence; The received power is measured at the frequency of the uplink virtual carrier.
9. The intermodulation detection method according to claim 8, wherein: The test signal sequence includes: two single-tone signals with different transmission frequencies; The determining the frequency of the uplink virtual carrier according to the frequency of the test signal sequence includes: Determine the frequency point in nf1+mf2 and nf1-mf2 located in the uplink working frequency band of the base station as the frequency point of the uplink virtual carrier; wherein m+n is 3 or 5, f1 is the transmission frequency point of the first single-tone signal, and f2 is the transmission frequency point of the second single-tone signal.
10. The intermodulation detection method according to any one of claims 2 to 7, wherein: When the i-th channel of the base station that needs to perform intermodulation detection sends a test signal sequence, corresponding service data is sent on the i-th channel that needs to perform intermodulation detection.
11. An intermodulation detection method, applied to a network management server, the method comprising: Obtain key performance indicator parameters of base stations; When a key performance indicator parameter of the base station meets a preset condition, sending an intermodulation detection command to the base station; Receive the intermodulation detection result sent by the base station; wherein the intermodulation detection result includes: the intermodulation power of all channels of the base station that need to perform intermodulation detection.
12. The intermodulation detection method according to claim 11, wherein: The key performance indicator parameters of the base station are obtained as follows: Obtaining the sum of key performance indicator parameters of all channels of the base station; Alternatively, key performance indicator parameters of each channel of the base station are obtained respectively.
13. The intermodulation detection method according to claim 12, wherein: The key performance indicator parameters of the base station satisfying the preset conditions include: The sum of the key performance indicator parameters of all channels of the base station meets the preset condition; Alternatively, a key performance indicator parameter of at least one channel of the base station meets the preset condition.
14. The intermodulation detection method according to claim 11, wherein: The key performance indicator parameters include: noise interference; The key performance indicator parameters of the base station satisfying the preset conditions include: The noise interference is continuously greater than or equal to a first preset threshold within a preset time period.
15. The intermodulation detection method according to claim 11, wherein: The key performance indicator parameters also include: uplink traffic, transmission power; The key performance indicator parameters of the base station meeting the preset conditions also include: The transmit power is continuously greater than or equal to a second preset threshold value within the preset time period, and the uplink traffic is greater than or equal to a third preset threshold value within the preset time period.
16. The intermodulation detection method according to any one of claims 11 to 15, after receiving the intermodulation detection result sent by the base station, the method further comprises: Determine the back-off power according to the intermodulation detection result, and select the channel that needs to be adjusted in power from the channels that need to be intermodulation detected; The transmit power of the selected channel is backed off according to the back-off power.
17. The intermodulation detection method according to any one of claims 11 to 15, after receiving the intermodulation detection result sent by the base station, the method further comprises: When the intermodulation detection result does not meet the standard condition, an alarm message is generated, and the alarm message is used to prompt the construction personnel to replace the antenna system or re-construct.
18. An electronic device comprising: at least one processor; A memory, wherein at least one program is stored in the memory, and when the at least one program is executed by the at least one processor, the intermodulation detection method according to any one of claims 1 to 17 is implemented.
19. A computer-readable medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the intermodulation detection method according to any one of claims 1 to 17.