Intermodulation interference analysis method, device, electronic device and readable storage medium

Abstract

The present invention discloses an analysis method, device, electronic device and readable storage medium for intermodulation interference, belonging to the field of communication technology. The method comprises: obtaining the bandwidth of a carrier to be analyzed; dividing the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2; obtaining the uplink frequency band of each of the equivalent subcarriers, and obtaining the frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers; and determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal.

Description

Technical Field

[0001] The present invention belongs to the field of communication technology, and in particular relates to an intermodulation interference analysis method, device, electronic equipment and readable storage medium. Background Art

[0002] During the planning and design phase of a communication system, it is of great significance to simulate the intermodulation interference problems that may occur in the communication system in advance, which is of great significance to the stable operation of the communication system.

[0003] Most existing intermodulation analysis methods use qualitative research, which can estimate the possibility of intermodulation interference in a communication system, but cannot estimate the specific impact of intermodulation interference on the communication system. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide an intermodulation interference analysis method, device, electronic device and readable storage medium, which can solve the problem that existing intermodulation analysis technology cannot predict the specific impact of intermodulation interference on a communication system.

[0005] In a first aspect, an embodiment of the present invention provides a method for analyzing intermodulation interference, the method comprising:

[0006] Obtain the bandwidth of the carrier to be analyzed;

[0007] Dividing the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, the signal strengths of the N equivalent subcarriers being equal, where N is an integer greater than 2;

[0008] Obtaining an uplink frequency band of each of the equivalent subcarriers, and obtaining a frequency band of each intermodulation signal formed by intermodulating two of the N equivalent subcarriers;

[0009] The intermodulation interference intensity of each of the equivalent subcarriers is determined according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each of the intermodulation signals.

[0010] Optionally, determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal includes:

[0011] Obtaining an uplink frequency band of an equivalent subcarrier to be measured, where the equivalent subcarrier to be measured is any one of the N equivalent subcarriers;

[0012] Determine frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining equivalent subcarriers among the N equivalent subcarriers except the equivalent subcarrier to be measured, where M is a positive integer;

[0013] The number of intermodulation signals in the M intermodulation signals whose frequency bands fall within the uplink frequency band of the equivalent subcarrier to be measured is counted, and the number is determined as the intermodulation interference intensity.

[0014] Optionally, the determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal further includes:

[0015] Weighted processing is performed on the intermodulation interference strength of each equivalent subcarrier to obtain the intermodulation interference strength of each equivalent subcarrier after weighted processing.

[0016] Optionally, performing weighted processing on the intermodulation interference strength of each equivalent subcarrier to obtain the intermodulation interference strength of each equivalent subcarrier after weighted processing includes:

[0017] Divide the bandwidth of the carrier to be analyzed into a plurality of weighted frequency bands, each of the weighted frequency bands corresponding to a weighting coefficient;

[0018] Obtaining the center frequency of the equivalent subcarrier to be measured;

[0019] determining a first weighting coefficient corresponding to the equivalent subcarrier to be measured according to a weighted frequency band range in which the center frequency of the equivalent subcarrier to be measured is located in the multiple weighted frequency band ranges;

[0020] The weighted intermodulation interference intensity corresponding to the equivalent subcarrier to be measured is determined according to the intermodulation interference intensity corresponding to the equivalent subcarrier to be measured and the first weighting coefficient.

[0021] Optionally, the method further includes:

[0022] Outputting a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

[0023] In a second aspect, an embodiment of the present invention provides an intermodulation interference analysis device, the device comprising:

[0024] A first acquisition module, configured to acquire the bandwidth of the carrier to be analyzed;

[0025] an equivalent processing module, configured to divide the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2;

[0026] A second acquisition module is used to obtain an uplink frequency band of each of the equivalent subcarriers, and obtain a frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers;

[0027] The determination module is configured to determine the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal.

[0028] Optionally, the determining module includes:

[0029] an acquisition submodule, configured to acquire an uplink frequency band of an equivalent subcarrier to be measured, where the equivalent subcarrier to be measured is any one of the N equivalent subcarriers;

[0030] A determination submodule, configured to determine frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining equivalent subcarriers among the N equivalent subcarriers, excluding the equivalent subcarrier to be measured, where M is a positive integer;

[0031] A statistical submodule is configured to count the number of intermodulation signals falling within the uplink frequency band of the equivalent subcarrier to be measured in the frequency band of the M intermodulation signals, and determine the number as the intermodulation interference intensity.

[0032] Optionally, the device further includes an output module, configured to output a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

[0033] In a third aspect, an embodiment of the present invention provides an electronic device, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the intermodulation interference analysis method as described in the first aspect are implemented.

[0034] In a fourth aspect, an embodiment of the present invention provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the intermodulation interference analysis method as described in the first aspect are implemented.

[0035] In an embodiment of the present invention, based on the obtained uplink frequency band of each equivalent subcarrier and the frequency band of the intermodulation signal formed by the intermodulation combination of all equivalent subcarriers, the intermodulation interference intensity of each equivalent subcarrier can be quantitatively analyzed. Each equivalent subcarrier represents a certain frequency band of the carrier to be analyzed. Therefore, the intermodulation interference intensity of the carrier to be analyzed can be quantitatively analyzed, thereby determining the specific impact of the intermodulation interference on the communication system using the carrier to be analyzed, so that the designer can make corresponding adjustments to the communication system and protect its stability according to the degree of impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 One of the flow charts of the intermodulation interference analysis method provided in an embodiment of the present invention;

[0037] Figure 2In the intermodulation interference analysis method provided in an embodiment of the present invention, one of the flow charts of determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal;

[0038] Figure 3 In the intermodulation interference analysis method provided in an embodiment of the present invention, a second flow chart of determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal;

[0039] Figure 4 In the intermodulation interference analysis method provided in an embodiment of the present invention, weighted processing is performed on the intermodulation interference intensity of each equivalent subcarrier to obtain a flow chart of the intermodulation interference intensity after weighted processing of each equivalent subcarrier;

[0040] Figure 5 A second flow chart of the intermodulation interference analysis method provided in an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the intermodulation interference intensity of the carrier to be analyzed in the intermodulation interference analysis method provided in an embodiment of the present invention;

[0042] Figure 7 A schematic diagram of the structure of an intermodulation interference analysis device provided in an embodiment of the present invention;

[0043] Figure 8 A schematic structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0045] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0046] The intermodulation interference analysis method provided by the embodiment of the present invention is described in detail below with reference to specific embodiments and application scenarios with reference to the accompanying drawings.

[0047] In communication systems, the frequency of pre-sent data is generally low. If it is transmitted at the frequency of the pre-sent data, it will be difficult to receive and synchronize. Carrier transmission is used to load the pre-sent data signal onto the carrier signal. The receiver can receive the pre-sent data signal at the same frequency as the carrier. However, during the signal transmission process, when two or more signals of different frequencies are input into a nonlinear circuit, the nonlinear device will generate a combined frequency signal. This combined frequency signal is called an intermodulation signal. The frequency of the intermodulation signal may be close to the frequency of the carrier signal, which can be received by the receiver and cause intermodulation interference.

[0048] like Figure 1 As shown, the intermodulation interference analysis method provided by the embodiment of the present invention includes:

[0049] Step S1, obtain the bandwidth of the carrier to be analyzed,

[0050] It can be understood that the bandwidth of the carrier signal to be analyzed in this embodiment refers to the frequency range occupied by various frequency components contained in the carrier signal to be analyzed, that is, the frequency band.

[0051] Step S2: dividing the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2.

[0052] It should be noted that the bandwidth of the carrier to be analyzed is evenly divided into N equal frequency bands to form N equivalent subcarriers with equal signal strength. Since at least two or more equivalent subcarrier signals are required to form an intermodulation signal, and it is necessary to determine the interference of the intermodulation signal on the equivalent subcarriers that do not participate in forming the intermodulation signal, N is an integer greater than 2. The larger the value of N, the more accurate the intermodulation interference strength result obtained in the subsequent steps will be.

[0053] Step S3, obtaining the uplink frequency band of each of the equivalent subcarriers, and obtaining the frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers.

[0054] It's important to note that in communications systems, such as satellite communications, signals are first transmitted from a ground station to a satellite (called uplink). Signals are then amplified by onboard equipment on the satellite and then sent back to a receiving station on the ground (called downlink). To prevent frequency overlap and interference, each frequency is used for transmission. Therefore, the signal from the transmitter to the base station is called uplink and has a specific uplink frequency band. The signal from the base station to the receiver is called downlink and has a specific downlink frequency band.

[0055] In the above steps, it is necessary to obtain the uplink frequency band of each equivalent subcarrier, and obtain the frequency bands of all intermodulation signals that can be formed by the intermodulation combination of all equivalent subcarriers. It should be noted that intermodulation interference has various types, such as third-order intermodulation interference, seventh-order intermodulation interference, ninth-order intermodulation interference, eleventh-order intermodulation interference, etc. Among them, third-order intermodulation interference has the greatest interference on the communication system, and the rest of the intermodulation interference can be ignored. Therefore, the intermodulation interference described in the embodiment of the present invention, unless otherwise specified, refers to third-order intermodulation interference.

[0056] Step S4: determining the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal.

[0057] Based on the obtained uplink frequency band of each equivalent subcarrier and the frequency band of the intermodulation signal formed by the intermodulation combination of all equivalent subcarriers, the intermodulation interference intensity of each equivalent subcarrier can be quantitatively analyzed. Each equivalent subcarrier represents a certain frequency band of the carrier to be analyzed. Therefore, the intermodulation interference intensity of the carrier to be analyzed can be quantitatively analyzed, thereby determining the specific impact of the intermodulation interference on the communication system using the carrier to be analyzed, so that the designer can make corresponding adjustments to the communication system and protect its stability based on the degree of impact.

[0058] Specifically, such as Figure 2 As shown, step S4, determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal, includes:

[0059] Step S41: obtaining an uplink frequency band of an equivalent subcarrier to be measured, wherein the equivalent subcarrier to be measured is any one of the N equivalent subcarriers.

[0060] It should be noted that, when determining the intermodulation interference intensity of each equivalent subcarrier, it is necessary to perform a separate analysis on a certain equivalent subcarrier, ie, the equivalent subcarrier to be measured, to obtain the uplink frequency band of the equivalent subcarrier to be measured.

[0061] Step S42: determining frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining N equivalent subcarriers except the equivalent subcarrier to be measured, where M is a positive integer.

[0062] It can be understood that after determining the equivalent subcarrier to be tested that needs to be analyzed, there are N-1 equivalent subcarriers left in the N equivalent subcarriers. The N-1 equivalent subcarriers can be intermodulated in pairs to form M intermodulation signals. After obtaining the frequency bands of the M intermodulation signals, it can be determined whether the intermodulation signals will interfere with the equivalent subcarrier to be tested.

[0063] Step S43 , counting the number of intermodulation signals in the M intermodulation signals whose frequency bands fall within the uplink frequency band of the equivalent subcarrier to be measured, and determining the number as the intermodulation interference intensity.

[0064] Specifically, when the frequency band of the intermodulation signal falls within the uplink frequency band of the equivalent subcarrier to be measured, the intermodulation signal and the equivalent subcarrier to be measured will be received by the base station together, forming intermodulation interference. Therefore, by counting the number of intermodulation signals whose frequency bands of the M intermodulation signals fall within the uplink frequency band of the equivalent subcarrier to be measured. The number is recorded as the intermodulation interference intensity. The more the number, the more the number of intermodulation signals that can cause intermodulation interference to the equivalent subcarrier to be measured among the M intermodulation signals formed by N-1 equivalent subcarriers, and the greater the impact on the equivalent subcarrier to be measured. On the contrary, the smaller the number, the less the impact on the equivalent subcarrier to be measured by intermodulation interference.

[0065] A quantitative analysis is performed by counting the number of intermodulation signals in the M intermodulation signals whose frequency bands fall within the uplink frequency band of the equivalent subcarrier to be measured. The quantitative analysis is performed for each equivalent subcarrier to determine the specific impact of the intermodulation interference on the communication system.

[0066] Furthermore, if Figure 3 As shown, step S4, determining the intermodulation interference intensity of each equivalent subcarrier according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal, further includes:

[0067] Step S44: performing weighted processing on the intermodulation interference strength of each equivalent subcarrier to obtain the weighted intermodulation interference strength of each equivalent subcarrier.

[0068] It should be noted that when conducting theoretical analysis, the carrier to be analyzed is divided into N equivalent subcarriers according to the bandwidth. However, in actual communication systems, the signal power proportions of different frequency bands are inconsistent. Therefore, it is necessary to weight the intermodulation interference intensity of the equivalent subcarriers in different frequency bands to perform a more accurate analysis of the intermodulation interference suffered by the carrier to be analyzed.

[0069] Specifically, such as Figure 4 As shown, step S44, performing weighted processing on the intermodulation interference strength of each equivalent subcarrier to obtain the intermodulation interference strength of each equivalent subcarrier after weighted processing, includes:

[0070] Step S441: Divide the bandwidth of the carrier to be analyzed into a plurality of weighted frequency bands, each of which corresponds to a weighting coefficient;

[0071] Step S442, obtaining the center frequency of the equivalent subcarrier to be measured;

[0072] Step S443: determining a first weighting coefficient corresponding to the equivalent subcarrier to be measured according to the weighted frequency band range in which the center frequency of the equivalent subcarrier to be measured is located in the multiple weighted frequency band ranges;

[0073] For third-order intermodulation interference, the power ratio of equivalent subcarriers in different frequency bands relative to the power ratio of the entire carrier to be analyzed is experimentally calculated. Taking the bandwidth of the analysis carrier as [-3B / 2, 3B / 2] as an example, while simplifying the calculation without losing the general principle, the value of the weighting coefficient K is as follows:

[0074]

[0075] Wherein, f is the center frequency of the equivalent subcarrier to be measured, and a first weighting coefficient of the equivalent subcarrier to be measured is obtained according to the range of f.

[0076] Step S444: Determine the weighted intermodulation interference intensity corresponding to the equivalent subcarrier to be measured according to the intermodulation interference intensity corresponding to the equivalent subcarrier to be measured and the first weighting coefficient.

[0077] The intermodulation interference strength corresponding to the equivalent subcarrier to be measured is multiplied by the corresponding first weighting coefficient to obtain the intermodulation interference strength corresponding to the equivalent subcarrier to be measured after weighted processing. The intermodulation interference strength after weighted processing can more accurately reflect the specific degree of impact of the communication system on the intermodulation interference.

[0078] As an optional implementation, Figure 5 As shown, the intermodulation interference analysis method provided by the embodiment of the present invention includes:

[0079] Step S1, obtaining the bandwidth of the carrier to be analyzed;

[0080] Step S2: dividing the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2;

[0081] Step S3, obtaining an uplink frequency band of each of the equivalent subcarriers, and obtaining a frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers;

[0082] Step S4: determining the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal.

[0083] The specific contents of the above steps S1 to S4 can be referred to the above Figure 1 The description in the embodiments will not be repeated here.

[0084] Step S5: outputting a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

[0085] It can be understood that by outputting the intermodulation interference intensity of each equivalent subcarrier or the intermodulation interference intensity after weighted processing as a table, a heat map, a line graph or a color scale map, etc., the analysis results can be visualized, and when comparing the intermodulation interferences suffered by multiple communication systems, the comparison results will be more intuitive. Specifically, Figure 6 The color scale diagram shown shows the names of six different communication systems on the left and a color scale column on the right, which is formed based on the weighted intermodulation interference intensity of each equivalent subcarrier in each communication system. The color of the color scale column changes from left to right as the intermodulation interference intensity of the equivalent subcarrier at the corresponding frequency changes. Different colors represent different intermodulation interference intensities: red > orange > yellow > green > white. Different depths also represent different intermodulation interference intensities, with deeper depths indicating greater intermodulation interference intensity.

[0086] The intermodulation interference analysis method provided in the embodiment of the present invention can be executed by an intermodulation interference analysis device. In the embodiment of the present invention, the intermodulation interference analysis method is performed by an intermodulation interference analysis device as an example, and combined with the attached Figure 7 The present invention provides an embodiment of an intermodulation interference analysis device 700. The device includes:

[0087] A first acquisition module 701 is configured to acquire the bandwidth of a carrier to be analyzed;

[0088] An equivalent processing module 702 is configured to divide the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2;

[0089] The second acquisition module 703 is configured to acquire an uplink frequency band of each of the equivalent subcarriers, and acquire a frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers;

[0090] The determination module 704 is configured to determine the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal.

[0091] Optionally, the determining module includes:

[0092] an acquisition submodule, configured to acquire an uplink frequency band of an equivalent subcarrier to be measured, where the equivalent subcarrier to be measured is any one of the N equivalent subcarriers;

[0093] A determination submodule, configured to determine frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining equivalent subcarriers among the N equivalent subcarriers, excluding the equivalent subcarrier to be measured, where M is a positive integer;

[0094] A statistical submodule is configured to count the number of intermodulation signals falling within the uplink frequency band of the equivalent subcarrier to be measured in the frequency band of the M intermodulation signals, and determine the number as the intermodulation interference intensity.

[0095] Optionally, the determination module further includes a weighting submodule, configured to perform weighted processing on the intermodulation interference strength of each of the equivalent subcarriers, and obtain the intermodulation interference strength of each of the equivalent subcarriers after weighted processing.

[0096] Optionally, the weighting submodule is further configured to:

[0097] Divide the bandwidth of the carrier to be analyzed into a plurality of weighted frequency bands, each of the weighted frequency bands corresponding to a weighting coefficient;

[0098] Obtaining the center frequency of the equivalent subcarrier to be measured;

[0099] determining a first weighting coefficient corresponding to the equivalent subcarrier to be measured according to a weighted frequency band range in which the center frequency of the equivalent subcarrier to be measured is located in the multiple weighted frequency band ranges;

[0100] The weighted intermodulation interference intensity corresponding to the equivalent subcarrier to be measured is determined according to the intermodulation interference intensity corresponding to the equivalent subcarrier to be measured and the first weighting coefficient.

[0101] Optionally, the device further includes an output module, configured to output a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

[0102] The intermodulation analysis device provided in the embodiment of the present invention can quantitatively analyze the intermodulation interference of the system, thereby determining the specific impact of the intermodulation interference on the communication system using the carrier to be analyzed, so that the designer can make corresponding adjustments and stability protection to the communication system according to the degree of impact.

[0103] It should be noted that the intermodulation interference analysis device provided in the embodiment of the present invention can implement the entire technical process of the above-mentioned intermodulation interference analysis method and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0104] The intermodulation interference analysis device in the embodiment of the present invention can be an electronic device, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or a device other than a terminal. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc. The non-mobile electronic device can also be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present invention.

[0105] Alternatively, as Figure 8 As shown, an embodiment of the present invention further provides an electronic device 800, including a processor 801 and a memory 802, wherein the memory 802 stores a program or instruction that can be run on the processor 801. When the program or instruction is executed by the processor 801, the various steps of the above-mentioned intermodulation interference analysis method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not repeated here.

[0106] It should be noted that the electronic devices in the embodiments of the present invention include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0107] An embodiment of the present invention also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned intermodulation interference analysis method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0108] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0109] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present invention is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0110] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0111] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for analyzing intermodulation interference, characterized in that: The method comprises: Obtain the bandwidth of the carrier to be analyzed; Dividing the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, the signal strengths of the N equivalent subcarriers being equal, where N is an integer greater than 2; Obtaining an uplink frequency band of each of the equivalent subcarriers, and obtaining a frequency band of each intermodulation signal formed by intermodulating two of the N equivalent subcarriers; Determining the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each of the intermodulation signals; The determining, according to the uplink frequency band of each equivalent subcarrier and the frequency band of each intermodulation signal, the intermodulation interference intensity of each equivalent subcarrier includes: Obtaining an uplink frequency band of an equivalent subcarrier to be measured, where the equivalent subcarrier to be measured is any one of the N equivalent subcarriers; Determine frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining equivalent subcarriers among the N equivalent subcarriers, excluding the equivalent subcarrier to be measured, where M is a positive integer; Counting the number of intermodulation signals in the M intermodulation signals whose frequency bands fall within the uplink frequency band of the equivalent subcarrier to be measured, and determining the number as the intermodulation interference intensity; The determining, according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal, the intermodulation interference intensity of each of the equivalent subcarriers further includes: Dividing the bandwidth of the carrier to be analyzed into a plurality of weighted frequency bands, each of the weighted frequency bands corresponding to a weighting coefficient; Obtaining the center frequency of the equivalent subcarrier to be measured; determining a first weighting coefficient corresponding to the equivalent subcarrier to be measured according to a weighted frequency band range in which the center frequency of the equivalent subcarrier to be measured is located in the multiple weighted frequency band ranges; The weighted intermodulation interference intensity corresponding to the equivalent subcarrier to be measured is determined according to the intermodulation interference intensity corresponding to the equivalent subcarrier to be measured and the first weighting coefficient.

2. The method for analyzing intermodulation interference according to claim 1, wherein: The method further comprises: Outputting a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

3. An intermodulation interference analysis device, characterized in that: The device comprises: A first acquisition module, configured to acquire the bandwidth of the carrier to be analyzed; an equivalent processing module, configured to divide the carrier to be analyzed into N equivalent subcarriers according to the bandwidth, wherein the signal strengths of the N equivalent subcarriers are equal, and N is an integer greater than 2; A second acquisition module is used to obtain the uplink frequency band of each of the equivalent subcarriers, and obtain the frequency band of each intermodulation signal formed by the intermodulation combination of the N equivalent subcarriers; A determination module, configured to determine the intermodulation interference intensity of each of the equivalent subcarriers according to the uplink frequency band of each of the equivalent subcarriers and the frequency band of each intermodulation signal; The determination module includes: an acquisition submodule, configured to acquire an uplink frequency band of an equivalent subcarrier to be measured, where the equivalent subcarrier to be measured is any one of the N equivalent subcarriers; A determination submodule, configured to determine frequency bands of M intermodulation signals formed by intermodulation combinations of two of the remaining equivalent subcarriers among the N equivalent subcarriers, excluding the equivalent subcarrier to be measured, where M is a positive integer; A statistics submodule, configured to count the number of intermodulation signals in the M intermodulation signals whose frequency bands fall within the uplink frequency band of the equivalent subcarrier to be measured, wherein the number is determined as the intermodulation interference intensity; The determining module is further configured to: Dividing the bandwidth of the carrier to be analyzed into a plurality of weighted frequency bands, each of the weighted frequency bands corresponding to a weighting coefficient; Obtaining the center frequency of the equivalent subcarrier to be measured; determining a first weighting coefficient corresponding to the equivalent subcarrier to be measured according to a weighted frequency band range in which the center frequency of the equivalent subcarrier to be measured is located in the multiple weighted frequency band ranges; The weighted intermodulation interference intensity corresponding to the equivalent subcarrier to be measured is determined according to the intermodulation interference intensity corresponding to the equivalent subcarrier to be measured and the first weighting coefficient.

4. The intermodulation interference analysis device according to claim 3, characterized in that: The device further includes an output module, configured to output a schematic diagram of the intermodulation interference intensity of the carrier to be analyzed according to the intermodulation interference intensity of each equivalent subcarrier.

5. An electronic device, characterized in that: The electronic device includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the intermodulation interference analysis method according to any one of claims 1 to 2 are implemented.

6. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the intermodulation interference analysis method according to any one of claims 1 to 2 are implemented.

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