Method and device for compensating trap effect of power amplifier

Abstract

The embodiment of the invention provides a power amplifier trap effect compensation method and device, and the method comprises the steps: inserting a background carrier at a guard band frequency domain position of a working carrier, and obtaining an input signal; monitoring the signal quality of an output signal of an output port of a transmitting channel based on the background carrier; under the condition that the signal quality is not qualified, obtaining the service load of the working carrier; and adjusting the transmitting power of the background carrier based on the service load of the working carrier so as to eliminate a power amplifier trap effect. According to the invention, the problem that the input signal has a power amplifier trap effect in the prior art is solved, and the effect of improving the quality of the output signal is further achieved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of communications, and more particularly, to a method and device for compensating for the trap effect of a power amplifier. Background Art

[0002] In current communication devices, gallium nitride power amplifiers are widely used. However, due to their special materials and processes, gallium nitride power amplifiers have always had a trap effect during use. Specifically, the input signal is distorted, resulting in poor information quality at the start and end parts of the signal. The specific radio frequency index affected is the signal modulation quality, that is, EVM (Error Vector Magnitude).

[0003] Currently, there are also methods to solve similar problems. For example, the method of filling invalid data at the front end of the input signal has a certain protective effect on the start part of the input signal, but it can only protect the data within individual time periods. In actual working input signals, there may not always be idle time to add protective data; moreover, in the face of complex signal characteristics, there has been no good compensation method.

[0004] Therefore, it is urgent to solve the problem of the trap effect of the input signal entering the gallium nitride power amplifier. Summary of the Invention

[0005] The embodiments of the present invention provide a method and device for compensating for the trap effect of a power amplifier to at least solve the problem of the trap effect of the input signal in the related art.

[0006] According to an embodiment of the present invention, a method for compensating for the trap effect of a power amplifier is provided, including:

[0007] Inserting a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal;

[0008] Monitoring the signal quality of the output signal at the output port of the transmission channel based on the background carrier;

[0009] When the signal quality is unqualified, obtaining the traffic load of the working carrier;

[0010] Adjusting the transmission power of the background carrier based on the traffic load of the working carrier to eliminate the trap effect of the power amplifier.

[0011] According to another embodiment of the present invention, a device for compensating for the trap effect of a power amplifier is provided, including:

[0012] A preprocessing module for inserting a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal;

[0013] A measurement module, configured to monitor the signal quality of the output signal at the output port of the transmission channel based on the background carrier;

[0014] An acquisition module, configured to acquire the service load of the working carrier when the signal quality is unqualified;

[0015] A processing module, configured to adjust the transmission power of the background carrier based on the service load of the working carrier to eliminate the power amplifier trap effect.

[0016] According to another embodiment of the present invention, there is also provided a computer-readable storage medium, in which a computer program is stored, and the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0017] According to another embodiment of the present invention, there is also provided an electronic device, including a memory and a processor, a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0018] Through the present invention, since a background carrier is inserted into the working carrier of the input signal to form a new input signal, and the transmission power of the background carrier is adjusted to eliminate the power amplifier trap effect in the transmission channel, the quality of the output signal is improved. Therefore, the problem of the power amplifier trap effect existing in the input signal in the related art can be solved, so as to achieve the effect of improving the quality of the output signal. Description of the Drawings

[0019] Figure 1 is a hardware structure block diagram of a mobile terminal of a method for power amplifier trap effect compensation according to an embodiment of the present invention;

[0020] Figure 2 is a flowchart of a method for power amplifier trap effect compensation according to an embodiment of the present invention;

[0021] Figure 3 is a flowchart of a method for monitoring the signal quality of the output signal at the output port of the transmission channel based on the background carrier according to an embodiment of the present invention;

[0022] Figure 4 is a flowchart of a method for obtaining the background carrier according to an embodiment of the present invention;

[0023] Figure 5 is a flowchart of a method for generating a used signal according to an embodiment of the present invention;

[0024] Figure 6 is a flowchart of a method for determining signal quality according to an embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the frequency-domain position relationship between the background carrier and the working carrier according to an embodiment of the present invention;

[0026] Figure 8 It is a flowchart of a method for inserting a background carrier into a working carrier according to an embodiment of the present invention;

[0027] Figure 9 It is a schematic diagram of the time-domain position of the transmission power of the working carrier according to an embodiment of the present invention;

[0028] Figure 10 It is a flowchart of a method for synchronizing the time distributions of the background carrier and the working carrier according to an embodiment of the present invention;

[0029] Figure 11 It is a schematic structural diagram of a device for power amplifier trap effect compensation according to an embodiment of the present invention. Detailed implementation manners

[0030] In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0032] The method embodiments provided in the embodiments of the present application can be executed on a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 It is a hardware structural block diagram of a mobile terminal of a method for power amplifier trap effect compensation according to an embodiment of the present invention. As Figure 1 shown, the mobile terminal may include one or more ( Figure 1 only one is shown in Figure 1 a processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Among them, the above-mentioned mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown in Figure 1 is only schematic and does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal may further include more or fewer components than

[0033] The memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the method for power amplifier trap effect compensation in the embodiments of the present invention. The processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, that is, the above-mentioned method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the mobile terminal through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0034] The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station and thus can communicate with the Internet. In one instance, the transmission device 106 may be a radio frequency (Radio Frequency, abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0035] In this embodiment, a method for power amplifier trap effect compensation is provided. Figure 2 is a flowchart of a method for power amplifier trap effect compensation according to an embodiment of the present invention, as Figure 2 shown, and the process includes the following steps:

[0036] Step S201, insert a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal.

[0037] The input signal of the related technology generally only includes the working carrier. After the input signal of the related technology is input into the transmitting channel of the power amplifier of the radio frequency unit, it is easily affected by the power amplifier trap effect, resulting in poor quality of the output signal. To solve this problem, through step S201, the following effects can be achieved:

[0038] Protect the starting part of the signal: The power amplifier trap effect usually causes signal distortion, especially the quality degradation of the starting part of the signal. By inserting a background carrier at the frequency domain position of the guard band, certain protection can be provided at the starting part of the signal to reduce the occurrence of distortion.

[0039] Improving Signal Quality: The insertion of a background carrier can, to a certain extent, compensate for the distortion caused by the power amplifier trap effect, thereby improving the quality of the output signal. The presence of the background carrier can cancel or reduce the signal distortion caused by the trap effect, thus improving the signal modulation quality.

[0040] By inserting a background carrier, the starting part of the signal can be protected and the signal quality can be improved, thereby alleviating the problems caused by the power amplifier trap effect. This can ensure the integrity and accuracy of the signal during transmission and improve the performance and reliability of communication equipment.

[0041] Step S202: Based on the background carrier, monitor the signal quality of the output signal at the output port of the transmission channel.

[0042] In an exemplary implementation, the following method can be used to obtain the traffic load of the working carrier:

[0043] Sampling and Measurement: Use a suitable measuring device or sensor to sample and measure the working carrier at the output port of the transmission channel. Appropriate devices such as a power probe, power sensor, or power meter can be selected and connected to the output port of the transmission channel to measure the power level of the working carrier.

[0044] Power Detection and Analysis: Input the sampled working carrier into a power detection device. By performing power detection and analysis on the working carrier, obtain the power value of the working carrier. Devices such as a power meter, power analyzer, or spectrum analyzer can be used. By performing power analysis on the frequency range of the working carrier, the power spectral density or spectrum diagram of the working carrier can be obtained, from which the load condition of the working carrier can be inferred.

[0045] Step S203: When the signal quality is unqualified, obtain the traffic load of the working carrier.

[0046] Through steps S202 and S203, the following effects can be achieved:

[0047] Real-time Monitoring of Signal Quality: By monitoring the output signal at the output port of the transmission channel, the quality information of the signal can be obtained in real time. This can promptly detect the situation where the signal quality is unqualified and perform targeted adjustments and optimizations.

[0048] Early Warning and Problem Elimination: When the signal quality is unqualified, it indicates that there is a problem with the transmission channel, which may lead to signal distortion or trap effect. By obtaining the traffic load of the working carrier, the problem can be quickly located and corresponding measures can be taken for repair, thereby promptly eliminating the problem and avoiding further impact on the signal quality and transmission performance.

[0049] Improve system stability and reliability: By continuously monitoring signal quality and obtaining service loads, timely maintenance and optimization measures can be implemented to ensure that the system operates in a stable and reliable state. Reduce the occurrence of signal quality problems and improve the reliability and stability of the system.

[0050] In summary, by monitoring signal quality based on the background carrier and obtaining the service load of the working carrier, real-time monitoring, problem warning and elimination, and improvement of system stability and reliability can be achieved. These effects can enhance the performance of communication devices and ensure the normal transmission and reception of signals.

[0051] Step S204: Adjust the transmission power of the background carrier based on the service load of the working carrier to eliminate the power amplifier trap effect.

[0052] Through step S204, the following effects can be achieved:

[0053] Reduce the power amplifier trap effect: The power amplifier trap effect refers to the non-linear distortion problem caused by the power amplifier device during the signal amplification process. By adjusting the transmission power of the background carrier, the operating state of the power amplifier device can be reasonably configured according to the service load of the working carrier, reducing the occurrence of the power amplifier trap effect and thus reducing non-linear distortion.

[0054] Improve signal quality: The non-linear distortion caused by the power amplifier trap effect will lead to a decline in signal quality. For example, the power amplifier trap causes distortion in the starting part of the signal. By adjusting the transmission power of the background carrier, the non-linear distortion problem of the input signal caused by the power amplifier trap effect can be eliminated or reduced, improving the quality and accuracy of the output signal.

[0055] Optimize transmission performance: The influence of the power amplifier trap effect on signal transmission may lead to a decline in transmission performance, such as a decrease in signal fidelity or anti-interference performance. By appropriately adjusting the transmission power of the background carrier, the power amplifier trap effect can be effectively eliminated, thereby optimizing transmission performance and improving indicators such as the anti-interference ability and bandwidth utilization rate of the signal.

[0056] By adjusting the transmission power of the background carrier based on the service load of the working carrier, the technical effects of reducing the power amplifier trap effect, improving signal quality, and optimizing transmission performance can be achieved. This can improve the performance of communication devices and enhance the stability and reliability of signal transmission.

[0057] Through steps S201 to S204, since a background carrier is inserted into the working carrier of the input signal to form a new input signal, and the transmission power of the background carrier is adjusted to eliminate the power amplifier trap effect in the transmission channel to improve the quality of the output signal. Therefore, the problem of the input signal having a power amplifier trap effect in the related technology can be solved to achieve the effect of improving the quality of the output signal.

[0058] In an exemplary embodiment, the following method can be used to adjust the transmission power of the background carrier:

[0059] When the signal quality is lower than the preset signal threshold, calculate the current power of the background carrier;

[0060] Increase the current power of the background carrier so that the signal quality meets the preset signal threshold.

[0061] Among them, the method for obtaining the specific value of increasing the current power of the background carrier is as follows:

[0062] Assume: The specific value of increasing the current power of the background carrier is X, and the calculation method of the specific value X is:

[0063] Obtain the average working power of the working carrier within a preset time period;

[0064] Obtain the minimum working power of the working carrier when there is no service and the maximum working power when it is fully loaded;

[0065] Obtain the minimum power of the background carrier;

[0066] Based on the average working power, the minimum working power, the maximum working power, and the minimum power, obtain the current power of the background carrier;

[0067] Obtain the current power of the working carrier in the transmission channel;

[0068] Based on the current power of the background carrier and the current power of the working carrier, obtain the total current power of the signal;

[0069] Obtain the preset signal power corresponding to the preset signal threshold, where there is a mapping relationship between the preset signal threshold and the preset signal power;

[0070] Based on the preset signal power and the total current power of the signal, obtain the theoretical power of the adjusted background carrier;

[0071] Based on the current power of the background carrier and the theoretical power, obtain the specific value X.

[0072] Among them, calculate the current power P of the background carrier current Through the following formula:

[0073]

[0074] P min Is the minimum power of the background carrier, S is the average power of the working carrier within a preset time period, and R min ≤s≤R max, Rmin is the minimum operating power of the working carrier when there is no traffic, and Rmax is the maximum power when the traffic is full; C is an adjustment factor, and its calculation formula is C = P max -P min ; P max is the maximum transmit power allowed for the background carrier to be transmitted in the transmit channel; then

[0075] X = P new -P current , P new is the power of the background carrier obtained at the output port of the transmit channel.

[0076] Figure 3 is a flowchart of a method for monitoring the signal quality of the output signal at the output port of the transmit channel based on the background carrier according to an embodiment of the present invention. In one embodiment, as Figure 3 shown, monitoring the signal quality of the output signal at the output port of the transmit channel based on the background carrier includes:

[0077] Step S301, identifying the measurement data carried by the background carrier.

[0078] In one exemplary embodiment, it can be implemented in the following manner:

[0079] Analyze the carrier modulation scheme: For example, frequency shift keying (FSK), phase shift keying (PSK), and quadrature amplitude modulation (QAM) can be used.

[0080] Demodulate the signal: Demodulate the received background carrier signal to restore the original modulated signal. For example, a frequency shift keying demodulator, a phase difference demodulator, etc. can be used.

[0081] Extract the measurement data: Extract the measurement data carried by the background carrier through the demodulated signal. It may involve steps such as parsing the data frame structure, processing the timing, and error checking. The specific method depends on the format and transmission characteristics of the data and is not limited here.

[0082] Data processing and parsing: Process and parse the extracted measurement data, and perform corresponding operations according to the specific meaning and format of the data. The analysis, extraction, or conversion of the measurement data can be completed through data processing algorithms, parsers, or custom processing programs.

[0083] Result output or application: Perform corresponding output or application according to the identified and processed measurement data. For example, it may include operations such as data display, storage, transmission, and analysis.

[0084] In summary, to identify the measurement data carried by the background carrier, it is necessary to analyze the modulation scheme of the background carrier, demodulate the signal, extract the measurement data, and perform data processing and analysis, and finally output the application result.

[0085] Step S302: Measure the signal quality of the output signal based on the measurement data.

[0086] In an exemplary embodiment, it can be implemented in the following manner:

[0087] Select the signal quality measurement index: First, it is necessary to select a suitable signal quality measurement index, which may include the bit error rate (BER), signal-to-noise ratio (SNR), symbol error rate (SER), etc.

[0088] Extract the measurement data: Extract the data to be measured from the output signal, which can be selected according to the specific signal characteristics and measurement purposes. For example, in digital communication, the bit stream or sample sequence at the receiving end can be extracted.

[0089] Analyze the measurement data: Analyze and process the extracted measurement data, and calculate the corresponding signal quality index. According to the selected index, the data needs to be processed accordingly, such as statistical analysis, algorithm calculation, etc.

[0090] Calculate the signal quality index: Apply the selected data processing method to calculate the value of the selected index. For example, to calculate the bit error rate, the number of received error bits can be counted and divided by the total number of bits; to calculate the signal-to-noise ratio, it can be obtained by the ratio of the signal power to the noise power.

[0091] In an exemplary embodiment, after calculating the signal quality index, it further includes: Result output and analysis: Output the result of the signal quality according to the calculated signal quality index. The result of the signal quality can be qualified or unqualified. For example, the signal quality index can be presented in numerical form, or visual analysis can be performed, such as generating charts, reports, etc., to reflect that the result of the signal quality is qualified or unqualified.

[0092] In summary, to measure the signal quality of the output signal based on the measurement data, it is necessary to select a suitable signal quality index, extract the measurement data, analyze the measurement data, calculate the signal quality index, and finally output and analyze the result.

[0093] Figure 4 is a flowchart of the method for obtaining the background carrier according to an embodiment of the present invention. In one embodiment, as Figure 4 shown, before inserting the background carrier at the frequency domain position of the guard band of the working carrier, it further includes:

[0094] Step S401: When a working carrier is detected, generate a usage signal based on the maximum number of sub - frequency bands that the background carrier can carry information.

[0095] In an exemplary embodiment, based on the maximum number of sub - frequency bands that the background carrier can carry information, obtain the largest prime number of the maximum number of sub - frequency bands. Determine the number and sequence number of the generated usage signals. Divide the sequence number of the usage signal by the largest prime number, and use the remainder result as the sequence number of the digital signal. Perform complex - number operations using the sequence number of the digital signal and the largest prime number to obtain a digital signal. Within the range of the maximum number of sub - frequency bands that the background carrier can carry information, determine the sequence number of each usage signal as an integer value, find the signal value corresponding to the sequence number of the usage signal in the digital signal, and append the value of the digital signal to the usage signal to convert the continuous digital signal into a discrete usage signal.

[0096] Step S402: Modulate based on the usage signal to obtain the background carrier.

[0097] In an exemplary embodiment, add up the obtained multiple usage signals to get an accumulated value, and perform D / A modulation on the accumulated value to obtain the background carrier. Figure 5 is a flowchart of the method for generating a usage signal according to an embodiment of the present invention. In one embodiment, as Figure 5 shown, when a working carrier is detected, generating a usage signal based on the maximum number of sub - frequency bands that the background carrier can carry information includes:

[0098] Step S501: Obtain the largest prime number of the maximum number of sub - frequency bands based on the maximum number of sub - frequency bands that the background carrier can carry information;

[0099] Step S502: Generate a usage signal based on the largest prime number.

[0100] In an exemplary embodiment, the usage signal r(n) is generated using the following formula:

[0101] r(n)=x(m), 0 ≤ n ≤ M; 0 ≤ m ≤ N sc ; m = n mod N sc ;

[0102] where x(m) is a digital signal, which is a continuous value; the usage signal r(n) is a discrete value obtained by sampling x(m). n is the label of the sub - frequency band in the usage signal, M is the maximum number of sub - frequency bands that the background carrier can carry information, and N sc is the largest prime number less than M;

[0103] where the background carrier uses the following formula:

[0104] Perform D / A modulation on f(n) to obtain a background carrier;

[0105] Where K is the number of information sampling points within a unit time slice of the working carrier.

[0106] Figure 6 is a flowchart of a method for determining signal quality according to an embodiment of the present invention. In one implementation, as Figure 6 shown, monitor the signal quality of the output signal at the output port of the transmission channel based on the background carrier, including:

[0107] Step S601, obtain a first angle sequence based on the angular cross-correlation between the output signal and the background carrier, where the angle of the background carrier is based on the used signal;

[0108] In one exemplary implementation, the angular cross-correlation between the output signal and the background carrier is a method for analyzing the phase difference between two signals. Angular cross-correlation can provide information about the relative time delay or phase shift between signals.

[0109] To calculate the angular cross-correlation between the output signal and the background carrier, the following method can be used:

[0110] 1. Perform Fourier transform on the output signal and the background carrier (for example, the background carrier can utilize the used signal) to obtain the transformation result, so as to transform the output signal and the background carrier from the time domain to the frequency domain. For example, by observing the spectrum of the transformation result obtained through Fourier transform of the used signal, the frequency domain components and phase information of the used signal can be determined, and the angle of the background carrier can be obtained.

[0111] 2. Take the complex conjugate of the transformation result to obtain two spectrum results.

[0112] 3. Multiply the two spectrum results to obtain the conversion result.

[0113] 4. Perform inverse Fourier transform on the conversion result to restore the conversion result from the frequency domain to the time domain to obtain the angular cross-correlation.

[0114] The result of the angular cross-correlation is a complex number sequence, which can be expressed in the form of amplitude and phase. The phase information reflects the relative phase shift between signals. These phase information can be extracted to obtain an angle sequence, which is used to describe the change of the phase difference between the output signal and the background carrier over time. To obtain the angle sequence, a function for calculating the angle of a complex number (such as the arctan function) can be used to calculate the angle of each complex number, and with time as the abscissa and angle as the ordinate, an angle sequence chart can be obtained. This chart can show the change of the phase difference between signals over time.

[0115] Step S602: Obtain a second angle sequence based on the angular autocorrelation of the output signal and the background carrier;

[0116] Among them, the angular autocorrelation of the output signal and the background carrier refers to the correlation between the two signals in terms of angle when their time delays are different. The angular autocorrelation can be obtained by performing Fourier transforms on the output signal and the background carrier, then multiplying their amplitudes and phases, and finally performing an inverse Fourier transform.

[0117] Based on the angular autocorrelation, a second angle sequence can be obtained. The specific method is to perform Fourier transforms on the output signal and the background carrier to obtain their spectra, then multiply the amplitudes and phases of the spectra, and finally perform an inverse Fourier transform to obtain the second angle sequence. This second angle sequence represents the angular correlation between the output signal and the background carrier at different time delays.

[0118] Step S603: Calculate the angle difference between the first angle sequence and the second angle sequence, and determine the signal quality based on the angle difference.

[0119] In an exemplary implementation, for example, if the output signal at the power amplifier port is Y(n), the following transformation is performed to obtain Y'(k):

[0120] where N is the number of sampling points;

[0121] Perform the following angular cross-correlation operation on the background carrier r(n) and the output signal Y'(k) to obtain the first angle sequence Z'(n):

[0122] where angel is an operation to find the angle of a complex number.

[0123] Perform the following angular autocorrelation calculation on the background carrier r(n) and the output signal Y'(k) to obtain the second angle sequence R'(n):

[0124]

[0125] From the first angle sequence Z'(n) and the second angle sequence R'(n), extract the positive numbers of each sequence, denoted as Z”(n) and R”(n) respectively, then average them separately and take the difference to obtain the angle difference D diff :

[0126] D diff = ∑Z”(n) / N 1 - ∑R”(n) / N 2 .

[0127] Compare the angle difference D diff with the standard angle difference D. If the angle difference D diffIf the difference from the standard angle difference D exceeds a preset threshold, it can be determined that the output signal is unqualified. Among them, the standard angle difference D and the preset threshold are selected according to specific circumstances and are not limited here.

[0128] Figure 7 FIG. is a schematic diagram of the frequency domain position relationship between the background carrier and the working carrier according to an embodiment of the present invention. In an exemplary embodiment, the position of the background carrier can be at the edge of the working carrier, specifically on the left or right side, and it is necessary to consider the frequency domain position of the working information carried in the working carrier (such as synchronization information, etc.). The background carrier is far from the frequency domain position where these working information are located. That is: the frequency domain position of the guard band of the working carrier is on the side far from the frequency domain position of the working information, and the background carrier is inserted into the frequency domain position of the guard band of the working carrier. As Figure 7 shown, for example, when the frequency domain position of the working information carried in the working carrier (such as synchronization information, etc.) is on the right side, the frequency domain position of the guard band is on the left side, and the background carrier can be inserted into the left side of the working carrier. Therefore, inserting the background carrier into the frequency domain position of the guard band of the working carrier can enhance the protection performance of the working carrier and improve its anti-interference ability and stability.

[0129] Figure 8 FIG. is a flowchart of a method for inserting a background carrier into a working carrier according to an embodiment of the present invention. In one embodiment, as Figure 8 shown, inserting a background carrier into the frequency domain position of the guard band of the working carrier to obtain an input signal includes:

[0130] Step S801, obtaining the frequency domain position of the working information in the working carrier;

[0131] In an exemplary embodiment, the following method is adopted:

[0132] 1. Collect the time domain data of the working information, which can be real-time data obtained through sensors, instruments or other devices.

[0133] 2. Perform a Fourier transform on the time domain data to convert it into frequency domain data.

[0134] 3. Analyze the frequency domain data to determine the position of the working information in the frequency domain. Methods such as spectrum analysis and power spectral density analysis can be used to determine the frequency components and energy distribution of the signal.

[0135] 4. Output relevant information of the frequency domain data, including frequency components, energy distribution, etc.

[0136] Through the above method, the position of the working information in the frequency domain can be determined, providing input data for subsequent steps.

[0137] Step S802: Obtain the frequency domain position of the guard band of the working carrier based on the frequency domain position of the working information;

[0138] In an exemplary implementation, the following method is adopted:

[0139] 1. Collect the frequency domain position of the working information, including the frequency range and signal characteristics of the working carrier.

[0140] 2. Determine the frequency domain position of the guard band of the working carrier according to the frequency domain position of the working information. The guard band is usually within a certain range above and below the frequency of the working carrier to reduce the influence of surrounding interference signals and noise.

[0141] 3. Use digital signal processing algorithms or spectrum analysis techniques to process the frequency domain position of the working information to determine the frequency domain position of the guard band of the working carrier.

[0142] 4. After determining the frequency domain position of the guard band, corresponding signal processing and modulation techniques can be adopted to ensure the reliable transmission and anti-interference ability of the working carrier in the frequency domain position.

[0143] Through the above method, the frequency domain position of the guard band can be determined, preparing for inserting the background carrier in the next step.

[0144] Step S803: Insert the background carrier at the frequency domain position of the guard band to obtain the input signal.

[0145] In an exemplary implementation, the following method is adopted:

[0146] 1. Determine the frequency range of the working carrier: Determine the frequency range of the working carrier, including the main carrier and the frequency domain position of the guard band.

[0147] 2. Insert the generated background carrier into the frequency domain position of the guard band: Use digital signal processing technology to insert the background carrier signal into the frequency domain position of the guard band of the working carrier. It can be realized through technologies such as frequency domain filters or mixers.

[0148] 3. Output the input signal: Output the obtained signal, that is, the input signal with the background carrier inserted into the frequency domain position of the guard band of the working carrier.

[0149] Through the above method, the background carrier can be inserted into the frequency domain position of the guard band of the working carrier, thereby obtaining the input signal. This can achieve the protection and enhancement of the input signal, improving the reliability and stability of the signal.

[0150] Figure 9 is a schematic diagram of the time domain position of the transmission power of the working carrier according to an embodiment of the present invention, as Figure 9As shown, in an exemplary embodiment, the occupation of the background carrier in time resources needs to be determined according to the time resource distribution of the actual working carrier. For example, the working carrier divides time into multiple slices. For example, it can be divided into 0 to 9, a total of 10 time slices. The transmission power of the working carrier occupies Figure 9 from 0 to 3, then the background carrier transmits power on 0 to 3 to make the time distribution completely synchronized with that of the working carrier. Of course, the working carrier can also divide time into other numbers of time slices, which can be adjusted according to the actual situation and will not be elaborated here.

[0151] Figure 10 is a flowchart of a method for synchronizing the time distributions of the background carrier and the working carrier according to an embodiment of the present invention. In one embodiment, as Figure 10 shown, the method further includes:

[0152] Step S1001, obtaining the time-domain position of the transmission power of the working carrier;

[0153] In an exemplary embodiment, the following method is adopted:

[0154] 1. Use a power detection instrument to monitor the transmission power of the working carrier. The power detection instrument can be a power meter, a power analyzer, a spectrum analyzer or other devices.

[0155] 2. Determine the time-domain position of the monitored transmission power of the working carrier. It can be determined through the display screen on the power detection instrument or the recorded data.

[0156] 3. Analyze the monitored transmission power data to determine the specific position of the working carrier in the time domain. It can be achieved by performing time-domain analysis or waveform analysis on the power data.

[0157] 4. According to the analysis result, determine the time-domain position of the transmission power of the working carrier. It can be a time period or a specific moment, used to represent the specific position of the transmission power of the working carrier in the time domain.

[0158] Through the above method, the following effects can be achieved:

[0159] 1. Ensure that the transmission power of the working carrier meets the specified standards and requirements, and guarantee the communication quality and equipment performance.

[0160] 2. Timely detect abnormal situations of the transmission power of the working carrier, and make adjustments and corrections to avoid adverse effects on the communication system and the surrounding environment.

[0161] 3. Provide data support for engineers and technicians to help them optimize and improve the communication system and improve the performance and reliability of the system.

[0162] 4. Ensure the secure and stable operation of the communication system, reduce the occurrence of faults and accidents, and improve the reliability and sustainability of the system.

[0163] Step S1002, control the transmit power of the background carrier in the time domain position so that the time distributions of the background carrier and the working carrier are synchronized.

[0164] In an exemplary embodiment, the following method is adopted:

[0165] 1. Understand the time domain position and transmit power of the working carrier. It can be obtained through system parameter configuration or measurement.

[0166] 2. Adjust the transmit power of the background carrier so that its position in the time domain is consistent with that of the working carrier. It can be adjusted through the system control panel or software.

[0167] 3. During the adjustment process, monitor the time domain positions of the background carrier and the working carrier in real time to ensure that they are synchronized. It can be achieved through a signal analyzer or other relevant devices.

[0168] 4. After the adjustment is completed, conduct verification and testing to ensure that the time distributions of the background carrier and the working carrier are synchronized to meet the system requirements.

[0169] 5. Make records and documentation for future maintenance and management. At the same time, regular inspections and adjustments are also required to ensure that the background carrier and the working carrier always remain synchronized.

[0170] Through the above method, the following technical effects can be achieved:

[0171] 1. Improve the overall performance of the system: By keeping the time distributions of the background carrier and the working carrier synchronized, interference and signal collisions can be reduced, and the overall performance and reliability of the system can be improved.

[0172] 2. Increase the signal coverage range: By dynamically adjusting the transmit power of the background carrier, it can keep the time distribution synchronized with the working carrier under different geographical locations and channel conditions, thereby increasing the signal coverage range and accessibility.

[0173] 3. Save energy: Dynamically adjusting the transmit power of the background carrier can be precisely controlled according to actual needs, avoiding unnecessary energy waste, thereby saving energy and extending the working life of the device.

[0174] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software adding the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to enable a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0175] In this embodiment, a device for power amplifier trap effect compensation is further provided. This device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0176] Figure 11 is a schematic structural diagram of a device for power amplifier trap effect compensation according to an embodiment of the present invention. As Figure 11 shown, the device includes:

[0177] A preprocessing module 111, configured to insert a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal;

[0178] A measurement module 112, configured to monitor the signal quality of the output signal at the output port of the transmission channel based on the background carrier;

[0179] An acquisition module 113, configured to acquire the traffic load of the working carrier when the signal quality is unqualified;

[0180] A processing module 114, configured to adjust the transmission power of the background carrier based on the traffic load of the working carrier to eliminate the power amplifier trap effect.

[0181] Further, the device is further configured to:

[0182] Identify the measurement data carried by the background carrier;

[0183] Measure the signal quality of the output signal based on the measurement data.

[0184] Further, the device is further configured to:

[0185] When a working carrier is detected, generate a usage signal based on the maximum number of sub-frequency bands that the background carrier can carry information;

[0186] The background carrier is obtained based on the signal through modulation.

[0187] Further, the apparatus is further configured to:

[0188] Obtain a first angle sequence based on the angular cross-correlation between the output signal and the background carrier, where the angle of the background carrier is obtained based on the signal;

[0189] Obtain a second angle sequence based on the angular autocorrelation between the output signal and the background carrier;

[0190] Calculate the angle difference between the first angle sequence and the second angle sequence, and determine the signal quality based on the angle difference.

[0191] Further, the apparatus is further configured to:

[0192] Obtain the largest prime number of the maximum number of sub-bands that the background carrier can carry information;

[0193] Generate a signal based on the largest prime number.

[0194] Further, the apparatus is further configured to:

[0195] Obtain the frequency-domain position of the working information in the working carrier;

[0196] Obtain the frequency-domain position of the guard band of the working carrier based on the frequency-domain position of the working information;

[0197] Insert the background carrier at the frequency-domain position of the guard band to obtain the input signal.

[0198] Further, the apparatus is further configured to:

[0199] Obtain the time-domain position of the transmission power of the working carrier;

[0200] Control the transmission power of the background carrier at the time-domain position so that the time distribution of the background carrier and the working carrier remains synchronized.

[0201] It should be noted that the above-mentioned various modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited thereto: the above-mentioned modules are all located in the same processor; or, the above-mentioned various modules are respectively located in different processors in any combination form.

[0202] An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, where the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0203] In an exemplary embodiment, the above computer-readable storage medium may include, but is not limited to: various media that can store computer programs, such as USB flash drives, read-only memory (ROM for short), random access memory (RAM for short), external hard drives, magnetic disks, or optical discs.

[0204] An embodiment of the present invention further provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.

[0205] In an exemplary embodiment, the above electronic device may further include a transmission device and an input / output device. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0206] Specific examples in this embodiment may refer to the examples described in the above embodiments and exemplary embodiments, and will not be repeated here.

[0207] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program code executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order from here, or they can be separately made into individual integrated circuit modules, or multiple of them can be made into a single integrated circuit module to implement. In this way, the present invention is not limited to any specific combination of hardware and software.

[0208] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for compensating for the power amplifier trap effect, characterized in that, it includes: inserting a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal; monitoring the signal quality of the output signal at the output port of the transmitting channel based on the background carrier; acquiring the traffic load of the working carrier when the signal quality is unqualified; adjusting the transmission power of the background carrier based on the traffic load of the working carrier to eliminate the power amplifier trap effect.

2. The method according to claim 1, characterized in that, the monitoring of the signal quality of the output signal at the output port of the transmitting channel based on the background carrier includes: identifying the measurement data carried by the background carrier; measuring the signal quality of the output signal based on the measurement data.

3. The method according to claim 2, characterized in that, before inserting the background carrier at the frequency domain position of the guard band of the working carrier, it further includes: generating a usage signal based on the maximum number of sub-frequency bands that the background carrier can carry information when the working carrier is detected; modulating the usage signal to obtain the background carrier.

4. The method according to claim 3, characterized in that, the monitoring of the signal quality of the output signal at the output port of the transmitting channel based on the background carrier includes: obtaining a first angle sequence based on the angular cross-correlation between the output signal and the background carrier, and the angle of the background carrier is obtained based on the usage signal; obtaining a second angle sequence based on the angular auto-correlation between the output signal and the background carrier; calculating the angle difference between the first angle sequence and the second angle sequence, and determining the signal quality based on the angle difference.

5. The method according to claim 3, characterized in that, the generating of the usage signal based on the maximum number of sub-frequency bands that the background carrier can carry information when the working carrier is detected includes: obtaining the largest prime number of the maximum number of sub-frequency bands based on the maximum number of sub-frequency bands that the background carrier can carry information; generating a usage signal based on the largest prime number.

6. The method according to claim 1, characterized in that, the inserting of the background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal includes: acquiring the frequency domain position of the working information in the working carrier; obtaining the frequency domain position of the guard band of the working carrier based on the frequency domain position of the working information; inserting the background carrier at the frequency domain position of the guard band to obtain an input signal.

7. The method according to claim 1, characterized in that, it further includes: acquiring the time domain position of the transmission power of the working carrier; controlling the transmission power of the background carrier at the time domain position so that the time distribution of the background carrier and the working carrier remains synchronized.

8. A device for compensating for the power amplifier trap effect, characterized in that, it includes: a preprocessing module for inserting a background carrier at the frequency domain position of the guard band of the working carrier to obtain an input signal; a measurement module for monitoring the signal quality of the output signal at the output port of the transmitting channel based on the background carrier; an acquisition module for acquiring the traffic load of the working carrier when the signal quality is unqualified; A processing module, configured to adjust the transmission power of the background carrier based on the service load of the working carrier, so as to eliminate the power amplifier trap effect.

9. A computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, wherein when the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.

10. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, when the processor executes the computer program, the steps of the method described in any one of claims 1 to 7 are implemented.

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