Method and device for compensation of power amplifier trapping effect

Abstract

Embodiments of the present disclosure provide a method and device for compensation of a power amplifier trapping effect. The method comprises: inserting a background carrier at a guard band frequency-domain position of a working carrier to obtain an input signal; on the basis of the background carrier, monitoring the signal quality of an output signal at an output port of a transmitting channel; when the signal quality does not meet the standard, acquiring a traffic load of the working carrier; and on the basis of the traffic load of the working carrier, adjusting the transmit power of the background carrier so as to eliminate a power amplifier trapping effect. The present disclosure solves the problem in the related art that the input signal has a power amplifier trapping effect, thereby achieving the effect of improving the quality of the output signal.

Description

Method and device for compensating power amplifier trap effect

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application CN202311628604.6, filed on November 29, 2023, entitled “Method and device for compensating for power amplifier trap effect”, and claims the priority of the patent application, and all the contents disclosed therein are incorporated into this disclosure by reference. Technical Field

[0003] The embodiments of the present disclosure relate to the technical field of communications, and in particular, to a method and apparatus for compensating for a power amplifier trap effect. Background Art

[0004] Gallium nitride (GaN) amplifiers are widely used in current communications equipment. However, due to their unique materials and processes, GaN amplifiers have always had a trap effect during use. This specifically distorts the input signal, resulting in poor information quality at the start and end of the signal. The specific RF indicator affected is the signal modulation quality, namely EVM (Error Vector Magnitude).

[0005] There are currently methods to solve similar problems, such as filling invalid data at the front end of the input signal. This method has a certain protective effect on the starting part of the input signal, but it can only protect data within a certain time period. In actual work, the input signal may not have free time to add protection data; and in the face of complex signal characteristics, there has been no good compensation method.

[0006] Therefore, it is urgent to solve the problem of power amplifier trap effect when the input signal enters the GaN power amplifier.

[0007] Summary of the Invention

[0008] The embodiments of the present disclosure provide a method and apparatus for compensating for a power amplifier trap effect, so as to at least solve the problem of a power amplifier trap effect existing in an input signal in the related art.

[0009] According to one embodiment of the present disclosure, a method for compensating for a power amplifier trap effect is provided, comprising:

[0010] Insert a background carrier at the guard band frequency domain position of the working carrier to obtain an input signal;

[0011] Monitoring the signal quality of the output signal of the transmission channel output port based on the background carrier;

[0012] When the signal quality is unqualified, obtaining the service load of the working carrier;

[0013] The transmission power of the background carrier is adjusted based on the traffic load of the working carrier to eliminate the power amplifier trap effect.

[0014] According to another embodiment of the present disclosure, a device for compensating for a power amplifier trap effect is provided, comprising:

[0015] A pre-processing module is configured to insert a background carrier at a guard band frequency domain position of the working carrier to obtain an input signal;

[0016] A measurement module, configured to monitor the signal quality of an output signal of an output port of a transmission channel based on the background carrier;

[0017] an acquisition module, configured to acquire the service load of the working carrier when the signal quality is unqualified;

[0018] The processing module is 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.

[0019] According to another embodiment of the present disclosure, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when running.

[0020] According to another embodiment of the present disclosure, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a hardware structure block diagram of a mobile terminal for a method for compensating for a power amplifier trap effect according to an embodiment of the present disclosure;

[0022] FIG2 is a flow chart of a method for compensating for a power amplifier trap effect according to an embodiment of the present disclosure;

[0023] 3 is a flow chart of a method for monitoring the signal quality of an output signal of a transmission channel output port based on a background carrier according to an embodiment of the present disclosure;

[0024] FIG4 is a flow chart of a method for obtaining a background carrier according to an embodiment of the present disclosure;

[0025] FIG5 is a flowchart of a method for generating a usage signal according to an embodiment of the present disclosure;

[0026] FIG6 is a flowchart of a method for determining signal quality according to an embodiment of the present disclosure;

[0027] FIG7 is a schematic diagram of the frequency domain position relationship between a background carrier and a working carrier according to an embodiment of the present disclosure;

[0028] FIG8 is a flowchart of a method for inserting a background carrier into a working carrier according to an embodiment of the present disclosure;

[0029] FIG9 is a schematic diagram of the time domain position of the transmit power of the working carrier according to an embodiment of the present disclosure;

[0030] FIG10 is a flowchart of a method for synchronizing the time distribution of a background carrier and a working carrier according to an embodiment of the present disclosure;

[0031] FIG11 is a schematic structural diagram of a device for compensating for a power amplifier trap effect according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings and in conjunction with embodiments.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0034] The method embodiments provided in the embodiments of the present disclosure can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, FIG1 is a hardware structure block diagram of a mobile terminal for a method for compensating for the trap effect of a power amplifier according to an embodiment of the present disclosure. As shown in FIG1 , the mobile terminal may include one or more (only one is shown in FIG1 ) processors 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, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG1 is only for illustration and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than those shown in FIG1 , or have a configuration different from that shown in FIG1 .

[0035] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for compensating for the trap effect of a power amplifier in the embodiment of the present disclosure. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. 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 memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories may be connected to the mobile terminal via 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.

[0036] The transmission device 106 is used to receive or send data via a network. A specific example of the aforementioned network may include a wireless network provided by the mobile terminal's communications provider. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0037] In this embodiment, a method for compensating for a power amplifier trap effect is provided. FIG2 is a flow chart of a method for compensating for a power amplifier trap effect according to an embodiment of the present disclosure. As shown in FIG2 , the flow chart includes the following steps:

[0038] Step S201: insert a background carrier into the frequency domain position of the guard band of the working carrier to obtain an input signal.

[0039] The input signal of the related art generally only includes the working carrier. After the input signal of the related art is input into the transmission channel of the power amplifier of the radio frequency unit, it is easily affected by the power amplifier trap effect, thereby deteriorating the quality of the output signal. To solve this problem, step S201 can achieve the following effects:

[0040] Protecting the signal's initial portion: The power amplifier trapping effect often causes signal distortion, especially at the beginning of the signal. Inserting a background carrier in the guard band frequency domain provides some protection at the beginning of the signal, reducing distortion.

[0041] Improve 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 output signal quality. The presence of a background carrier can offset or reduce the signal distortion caused by the trap effect, thereby improving the signal modulation quality.

[0042] By inserting a background carrier, the initial part of the signal can be protected and the signal quality can be improved, thereby improving the problems caused by the power amplifier trap effect. This ensures the integrity and accuracy of the signal during transmission and improves the performance and reliability of communication equipment.

[0043] Step S202: monitoring the signal quality of the output signal of the transmission channel output port based on the background carrier.

[0044] In an exemplary embodiment, the traffic load of the working carrier may be obtained using the following method:

[0045] Sampling and Measurement: Use appropriate measurement equipment or sensors to sample and measure the operating carrier at the output of the transmit channel. You can select a suitable power sensor, power sensor, or power meter and connect it to the output of the transmit channel to measure the operating carrier power level.

[0046] Power detection and analysis: The sampled operating carrier is input into a power detection device, which detects and analyzes the operating carrier power to obtain the operating carrier power value. This can be done using equipment such as a power meter, power analyzer, or spectrum analyzer. By performing power analysis across the operating carrier's frequency range, the carrier's power spectral density or spectrum can be obtained, from which the carrier load can be inferred.

[0047] Step S203: When the signal quality is unqualified, obtain the service load of the working carrier.

[0048] Through step S202 and step S203, the following effects can be achieved:

[0049] Real-time monitoring of signal quality: By monitoring the output signal of the transmission channel output port, you can obtain real-time signal quality information. This allows you to promptly detect signal quality issues and make targeted adjustments and optimizations.

[0050] Early warning and problem elimination: When signal quality fails, it indicates a problem in the transmission channel, which may cause signal distortion or trapping. By obtaining the traffic load of the operating carrier, the problem can be quickly located and appropriate measures can be taken to correct it, eliminating the problem in a timely manner and preventing further impact on signal quality and transmission performance.

[0051] Improve system stability and reliability: By continuously monitoring signal quality and obtaining information about service load, timely maintenance and optimization measures can be implemented to ensure stable and reliable system operation. This reduces the occurrence of signal quality issues and improves system reliability and stability.

[0052] In summary, monitoring signal quality based on background carriers and obtaining the traffic load of working carriers can achieve real-time monitoring, problem warning and troubleshooting, and improve system stability and reliability. These effects can enhance the performance of communication equipment and ensure normal signal transmission and reception.

[0053] Step S204: adjusting the transmission power of the background carrier based on the service load of the working carrier to eliminate the power amplifier trap effect.

[0054] Through step S204, the following effects can be achieved:

[0055] Reducing the power amplifier trap effect: The power amplifier trap effect refers to the nonlinear distortion caused by power amplifier components during signal amplification. By adjusting the background carrier's transmit power, the power amplifier's operating state can be properly configured based on the traffic load of the operating carrier, reducing the occurrence of the power amplifier trap effect and, in turn, minimizing nonlinear distortion.

[0056] Improving signal quality: Nonlinear distortion caused by the power amplifier trap effect can degrade signal quality. For example, this can cause distortion at the beginning of the signal. By adjusting the background carrier's transmit power, this nonlinear distortion 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.

[0057] Optimizing transmission performance: The power amplifier trap effect can affect signal transmission, potentially reducing transmission performance, such as signal fidelity or interference rejection. By properly adjusting the background carrier's transmit power, the power amplifier trap effect can be effectively eliminated, optimizing transmission performance and improving signal interference rejection, bandwidth utilization, and other metrics.

[0058] By adjusting the transmit power of the background carrier based on the traffic load of the active carrier, we can reduce the power amplifier trap effect, improve signal quality, and optimize transmission performance. This improves the performance of communication equipment and enhances the stability and reliability of signal transmission.

[0059] Through steps S201 to S204, a background carrier is inserted into the working carrier of the input signal to form a new input signal. The transmit power of the background carrier is adjusted to eliminate the power amplifier trap effect within the transmit channel, thereby improving the quality of the output signal. Therefore, the problem of the power amplifier trap effect in the input signal in the related art can be solved, thereby achieving the effect of improving the quality of the output signal.

[0060] In an exemplary embodiment, the transmit power of the background carrier may be adjusted using the following method:

[0061] When the signal quality is lower than a preset signal threshold, calculating the current power of the background carrier;

[0062] The current power of the background carrier is increased so that the signal quality meets the preset signal threshold.

[0063] The specific value of the current power increase of the background carrier is obtained as follows:

[0064] Assume that the specific value of the increase in the current power of the background carrier is X. The specific value X is calculated as follows:

[0065] Obtain the average operating power of the operating carrier within a preset time period;

[0066] Obtain the minimum operating power of the working carrier when there is no service and the maximum operating power when there is full service;

[0067] Get the minimum power of the background carrier;

[0068] Based on the average operating power, minimum operating power, maximum operating power, and minimum power, the current power of the background carrier is obtained;

[0069] Get the current power of the working carrier in the transmission channel;

[0070] Based on the current power of the background carrier and the current power of the working carrier, the current total power of the signal is obtained;

[0071] Obtaining a preset signal power corresponding to a preset signal threshold, wherein a mapping relationship is set between the preset signal threshold and the preset signal power;

[0072] Based on the preset signal power and the current total power of the signal, the adjusted theoretical power of the background carrier is obtained;

[0073] The specific value X is obtained based on the current power and theoretical power of the background carrier.

[0074] Among them, calculate the current power P of the background carrier current Through the following formula:

[0075] P min is the minimum power of the background carrier, S is the average power of the working carrier in the preset time period, and R min ≤s≤R max , Rmin is the minimum operating power when the working carrier has no business, Rmax is the maximum power when the business is full; C is the adjustment factor, and its calculation formula is C = Pmax -P min ;P max is the maximum transmission power allowed for the background carrier in the transmission channel;

[0076] X=P new -P current , P new The power of the background carrier obtained from the output port of the transmit channel.

[0077] FIG3 is a flow chart of a method for monitoring the signal quality of an output signal of a transmission channel output port based on a background carrier according to an embodiment of the present disclosure. In one embodiment, as shown in FIG3 , monitoring the signal quality of an output signal of a transmission channel output port based on a background carrier includes:

[0078] Step S301: Identify measurement data carried by a background carrier.

[0079] In an exemplary embodiment, this can be achieved in the following manner:

[0080] Analyze the carrier modulation scheme: For example, frequency shift keying (FSK), phase shift keying (PSK), and quadrature amplitude modulation (QAM) can be used.

[0081] Demodulating the signal: Demodulates the received background carrier signal to restore the original modulated signal. For example, a frequency shift keying demodulator or phase difference demodulator is used.

[0082] Extracting measurement data: Extracting the measurement data carried by the background carrier from the demodulated signal. This may involve analyzing the data frame structure, processing the timing, and checking for errors. The specific method depends on the data format and transmission characteristics and is not specified here.

[0083] Data processing and analysis: Process and analyze the extracted measurement data, performing corresponding operations based on the specific meaning and format of the data. Operations such as analysis, extraction, or transformation of measurement data can be completed through data processing algorithms, parsers, or custom processing programs.

[0084] Result output or application: Based on the identified and processed measurement data, corresponding output or application is performed. Examples include data display, storage, transmission, analysis, and other operations.

[0085] 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, process and analyze the data, and finally output the application results.

[0086] Step S302: measuring the signal quality of the output signal based on the measurement data.

[0087] In an exemplary embodiment, this can be achieved in the following manner:

[0088] Select signal quality metrics: First, you need to select appropriate signal quality metrics, which can include bit error rate (BER), signal-to-noise ratio (SNR), symbol error rate (SER), etc.

[0089] Extracting measurement data: Extracting the data to be measured from the output signal can be done based on the specific signal characteristics and measurement purpose. For example, in digital communications, the bit stream or sample sequence at the receiving end can be extracted.

[0090] Analyze measurement data: Analyze and process the extracted measurement data to calculate the corresponding signal quality indicators. Depending on the selected indicators, the data needs to be processed accordingly, such as statistical analysis, algorithm calculation, etc.

[0091] Calculate signal quality metrics: Apply the selected data processing method to calculate the value of the selected metric. For example, to calculate the bit error rate, you can count the number of error bits received and divide it by the total number of bits. To calculate the signal-to-noise ratio, you can calculate the ratio of signal power to noise power.

[0092] In an exemplary embodiment, after calculating the signal quality indicator, the method further includes: outputting and analyzing the signal quality result based on the calculated signal quality indicator. The signal quality result can be either qualified or unqualified. For example, the signal quality indicator can be presented in numerical form or analyzed visually, such as by generating a chart or report, to indicate whether the signal quality result is qualified or unqualified.

[0093] 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 indicator, extract the measurement data, analyze the measurement data, calculate the signal quality indicator, and finally output and analyze the results.

[0094] FIG4 is a flow chart of a method for obtaining a background carrier according to an embodiment of the present disclosure. In one embodiment, as shown in FIG4 , before inserting the background carrier at the guard band frequency domain position of the working carrier, the method further includes:

[0095] Step S401: When a working carrier is detected, a use signal is generated based on the maximum number of sub-bands that can carry information on the background carrier.

[0096] In an exemplary embodiment, based on the maximum number of subbands that a background carrier can carry information, a maximum prime number for the maximum number of subbands is obtained. The number and sequence number of generated usage signals are determined, and the sequence number of the usage signal is divided by the maximum prime number, with the remainder used as the sequence number of the digital signal. Complex number operations are performed using the sequence number of the digital signal and the maximum prime number to obtain a digital signal. Within the maximum number of subbands that a background carrier can carry information, an integer sequence number is determined for each usage signal. A signal value corresponding to the sequence number of the usage signal is searched within the digital signal, and the value of the digital signal is appended to the usage signal to convert the continuous digital signal into a discrete usage signal.

[0097] Step S402: obtaining a background carrier through modulation based on the use signal.

[0098] In an exemplary embodiment, the obtained multiple usage signals are accumulated to obtain an accumulated value, and the accumulated value is D / A modulated to obtain a background carrier. Figure 5 is a flowchart of a method for generating a usage signal according to an embodiment of the present disclosure. In one embodiment, as shown in Figure 5, when a working carrier is detected, generating a usage signal based on the maximum number of sub-bands that the background carrier can carry information includes:

[0099] Step S501, obtaining a maximum prime number of the maximum number of sub-bands based on the maximum number of sub-bands that can carry information on the background carrier;

[0100] Step S502: Generate a usage signal based on the maximum prime number.

[0101] In an exemplary embodiment, the usage signal r(n) is generated using the following formula:

[0102] r(n)=x(m), 0≤n≤M; m=n mod N sc ;

[0103] Where x(m) is a digital signal, which is a continuous value; the use signal r(n) is a discrete value obtained by sampling x(m). n is the number of the sub-band in the use signal, M is the maximum number of sub-bands that the background carrier can carry information, and N sc is the largest prime number less than M;

[0104] The background carrier adopts the following formula:

[0105] Perform D / A modulation on f(n) to obtain the background carrier;

[0106] Wherein, K is the number of information sampling points within a unit time slice of the working carrier.

[0107] FIG6 is a flow chart of a method for determining signal quality according to an embodiment of the present disclosure. In one embodiment, as shown in FIG6 , monitoring the signal quality of an output signal of a transmission channel output port based on a background carrier includes:

[0108] Step S601, obtaining a first angle sequence based on the cross-correlation of the output signal and the angle of the background carrier, where the angle of the background carrier is obtained based on the use signal;

[0109] In an exemplary embodiment, angular cross-correlation of the output signal and the background carrier is a method for analyzing the phase difference between the two signals. Angular cross-correlation can provide information about the relative time delay or phase offset between the signals.

[0110] To calculate the angular cross-correlation between the output signal and the background carrier, the following method can be used:

[0111] 1. Perform a Fourier transform on the output signal and background carrier (for example, the background carrier can be the use signal) to obtain a transform result, thereby converting the output signal and background carrier from the time domain to the frequency domain. For example, by observing the spectrum of the transform result obtained by Fourier transforming the use signal, the frequency domain components and phase information of the use signal can be determined, and the angle of the background carrier can be obtained.

[0112] 2. Take the complex conjugate of the transformation result to obtain two spectrum results.

[0113] 3. Multiply the two spectrum results to get the conversion result.

[0114] 4. Perform inverse Fourier transform on the conversion result, restore the conversion result from the frequency domain to the time domain, and obtain the angle cross-correlation.

[0115] The result of angular cross-correlation is a complex number sequence that can be expressed in terms of amplitude and phase. The phase information reflects the relative phase offset between the signals. This phase information can be extracted to produce an angle sequence that describes how the phase difference between the output signal and the background carrier changes over time. To generate the angle sequence, a complex angle function (such as the arctan function) can be used to calculate the angle of each complex number. A graph is then created with time as the horizontal axis and the angle as the vertical axis to show how the phase difference between the signals changes over time.

[0116] Step S602, obtaining a second angle sequence based on the angle autocorrelation of the output signal and the background carrier;

[0117] The angular autocorrelation between the output signal and the background carrier refers to the angular correlation between the two signals when they are delayed in time. The angular autocorrelation can be obtained by Fourier transforming the output signal and the background carrier, multiplying their amplitudes and phases, and then performing an inverse Fourier transform.

[0118] Based on the angular autocorrelation, a second angular sequence can be obtained. Specifically, the output signal and background carrier are Fourier transformed to obtain their spectra. The amplitude and phase of the spectra are then multiplied, and finally, an inverse Fourier transform is performed to obtain the second angular sequence. This second angular sequence represents the angular correlation between the output signal and background carrier at different time delays.

[0119] 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.

[0120] In an exemplary embodiment, for example, the output signal of the power amplifier port is Y(n), and the following transformation is performed to obtain Y'(k):

[0121] Where N is the number of sampling points;

[0122] Perform the following angle cross-correlation operation on the background carrier r(n) and the output signal Y'(k) to obtain the first angle sequence Z'(n):

[0123] Angel is the operation for finding the angle of a complex number.

[0124] Perform the following angle autocorrelation calculation on the background carrier r(n) and the output signal Y'(k) to obtain the second angle sequence R'(n):

[0125] From the first angle sequence Z'(n) and the second angle sequence R'(n), take the positive numbers of each sequence and record them as Z"(n) and R"(n) respectively, then average them and make the difference to get the angle difference D diff : D diff =∑Z"(n) / N1-∑R"(n) / N2.

[0126] The angle difference D diff Compared with the standard angle difference D, if the angle difference D diff If the difference from the standard angle difference D exceeds a preset threshold, the output signal can be determined to be unqualified. The standard angle difference D and the preset threshold are selected according to specific circumstances and are not limited here.

[0127] Figure 7 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 disclosure. 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. It is necessary to consider the frequency domain position of the working information carried by the working carrier (such as synchronization information, etc.), and the background carrier is far away from the frequency domain position where these working information are located. That is, the frequency domain position of the protection band of the working carrier is on the side away from the frequency domain position of the working information, and the background carrier is inserted into the frequency domain position of the protection band of the working carrier. As shown in Figure 7, for example, when the frequency domain position of the working information carried by the working carrier (such as synchronization information, etc.) is on the right, the frequency domain position of the protection band is on the left, 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 protection band of the working carrier can enhance the protection performance of the working carrier and improve its anti-interference ability and stability.

[0128] FIG8 is a flowchart of a method for inserting a background carrier into a working carrier according to an embodiment of the present disclosure. In one implementation, as shown in FIG8 , inserting the background carrier into the guard band frequency domain position of the working carrier to obtain an input signal includes:

[0129] Step S801, obtaining the frequency domain position of working information in the working carrier;

[0130] In an exemplary embodiment, the following method is used:

[0131] 1. Time domain data for collecting work information can be real-time data obtained through sensors, instruments or other equipment.

[0132] 2. Perform Fourier transform on the time domain data to convert it into frequency domain data.

[0133] 3. Analyze frequency domain data to determine the location of the working information in the frequency domain. Spectral analysis and power spectral density analysis can be used to determine the frequency components and energy distribution of the signal.

[0134] 4. Output relevant information of frequency domain data, including frequency components, energy distribution, etc.

[0135] Through the above method, the position of the working information in the frequency domain can be determined, providing input data for subsequent steps.

[0136] Step S802: obtaining the frequency domain position of the guard band of the working carrier based on the frequency domain position of the working information;

[0137] In an exemplary embodiment, the following method is used:

[0138] 1. Collect the frequency domain location of the working information, including the frequency range and signal characteristics of the working carrier.

[0139] 2. Determine the frequency domain location of the guard band for the operating carrier based on the frequency domain location of the operating information. The guard band is typically within a certain range above and below the operating carrier frequency to reduce the impact of surrounding interference signals and noise.

[0140] 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.

[0141] 4. After determining the frequency domain location of the guard band, appropriate signal processing and modulation techniques can be adopted to ensure reliable transmission and anti-interference capabilities of the working carrier at the frequency domain location.

[0142] Through the above method, the frequency domain position of the guard band can be determined to prepare for the next step of inserting the background carrier.

[0143] Step S803: insert a background carrier into the guard band frequency domain position to obtain an input signal.

[0144] In an exemplary embodiment, the following method is used:

[0145] 1. Determine the frequency range of the operating carrier: Determine the frequency range of the operating carrier, including the main carrier and guard band frequency domain positions.

[0146] 2. Insert the generated background carrier into the guard band frequency domain: Using digital signal processing technology, the background carrier signal is inserted into the guard band frequency domain of the working carrier. This can be achieved through frequency domain filters or mixers.

[0147] 3. Outputting the input signal: Outputting the obtained signal, that is, obtaining the input signal in which the background carrier is inserted into the guard band frequency domain position of the working carrier.

[0148] The above method can be used to insert the background carrier into the guard band frequency domain of the working carrier to obtain the input signal. This can protect and enhance the input signal and improve the reliability and stability of the signal.

[0149] 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 disclosure. As shown in Figure 9, in an exemplary implementation, the occupancy of the background carrier on the time resource 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 0 to 3 in Figure 9, then the background carrier transmits power on 0 to 3 to be completely synchronized with the time distribution 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 actual conditions, and will not be elaborated here.

[0150] FIG10 is a flow chart of a method for synchronizing the time distribution of a background carrier and a working carrier according to an embodiment of the present disclosure. In one implementation, as shown in FIG10 , the method further includes:

[0151] Step S1001, obtaining the time domain position of the working carrier transmission power;

[0152] In an exemplary embodiment, the following method is used:

[0153] 1. Use a power detection instrument to monitor the transmission power of the operating carrier. The power detection instrument can be a power meter, power analyzer, or spectrum analyzer.

[0154] 2. Determine the time domain location of the monitored operating carrier transmission power. This can be determined using the display on the power detection instrument or recorded data.

[0155] 3. Analyze the monitored transmit power data to determine the specific location of the operating carrier in the time domain. This can be achieved by performing time domain analysis or waveform analysis on the power data.

[0156] 4. Based on the analysis results, determine the time domain location of the operating carrier's transmit power. This can be a time period or a specific moment, used to indicate the specific location of the operating carrier's transmit power in the time domain.

[0157] Through the above method, the following effects can be achieved:

[0158] 1. Ensure that the transmission power of the operating carrier meets the specified standards and requirements to ensure communication quality and equipment performance.

[0159] 2. Promptly detect abnormalities in the operating carrier transmission power and make adjustments and corrections to avoid adverse effects on the communication system and the surrounding environment.

[0160] 3. Provide data support to engineers and technicians to help them optimize and improve communication systems and enhance system performance and reliability.

[0161] 4. Ensure the safe and stable operation of the communication system, reduce the occurrence of failures and accidents, and improve the reliability and sustainability of the system.

[0162] Step S1002: Control the transmission power of the background carrier in the time domain so that the time distribution of the background carrier and the working carrier are synchronized.

[0163] In an exemplary embodiment, the following method is used:

[0164] 1. Understand the time domain location and transmit power of the operating carrier, which can be obtained through system parameter configuration or measurement.

[0165] 2. Adjust the background carrier's transmit power so that its position in the time domain is consistent with the working carrier. This can be done through the system control panel or software.

[0166] 3. During the adjustment process, monitor the time domain positions of the background carrier and the working carrier in real time to ensure they remain synchronized. This can be achieved using a signal analyzer or other related equipment.

[0167] 4. After the adjustment is completed, verification and testing are performed to ensure that the time distribution of the background carrier and the working carrier remain synchronized to meet the system requirements.

[0168] 5. Record and document the information for future maintenance and management. Regular inspection and adjustment are also required to ensure that the background carrier and the working carrier are always synchronized.

[0169] Through the above method, the following technical effects can be achieved:

[0170] 1. Improve the overall performance of the system: By keeping the time distribution of the background carrier and the working carrier synchronized, interference and signal collision can be reduced, and the overall performance and reliability of the system can be improved.

[0171] 2. Improve signal coverage: By dynamically adjusting the transmit power of the background carrier, it can be synchronized with the time distribution of the working carrier under different geographical locations and channel conditions, thereby improving signal coverage and accessibility.

[0172] 3. Energy saving: Dynamically adjusting the background carrier's transmission power can be precisely controlled according to actual needs, avoiding unnecessary energy waste, thereby saving energy and extending the device's working life.

[0173] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by adding the necessary general hardware platform with the help of software, of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), including a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0174] This embodiment also provides a device for compensating for the trap effect of a power amplifier. This device is used to implement the above-mentioned embodiments and preferred embodiments. Details already described will not be repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0175] FIG11 is a schematic structural diagram of a device for compensating for a power amplifier trap effect according to an embodiment of the present disclosure. As shown in FIG11 , the device includes:

[0176] A pre-processing module 111 is configured to insert a background carrier into a guard band frequency domain position of a working carrier to obtain an input signal;

[0177] The measurement module 112 is configured to monitor the signal quality of the output signal of the transmission channel output port based on the background carrier;

[0178] An acquisition module 113 is configured to acquire a service load of a working carrier when the signal quality is unqualified;

[0179] The processing module 114 is 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.

[0180] Furthermore, the device is also used for:

[0181] Identify measurement data carried by background carriers;

[0182] A signal quality of the output signal is measured based on the measurement data.

[0183] Furthermore, the device is also used for:

[0184] When a working carrier is detected, a use signal is generated based on the maximum number of sub-bands that can carry information on the background carrier;

[0185] A background carrier is obtained by modulation based on the used signal.

[0186] Furthermore, the device is also used for:

[0187] Obtaining a first angle sequence based on the cross-correlation of the output signal and the angle of the background carrier, wherein the angle of the background carrier is obtained based on the use signal;

[0188] Obtaining a second angle sequence based on the angle autocorrelation of the output signal and the background carrier;

[0189] An angular difference between the first angle sequence and the second angle sequence is calculated, and a signal quality is determined based on the angular difference.

[0190] Furthermore, the device is also used for:

[0191] Obtaining a maximum prime number of the maximum number of sub-bands based on the maximum number of sub-bands that the background carrier can carry information;

[0192] Generates a usage signal based on the maximum prime number.

[0193] Furthermore, the device is also used for:

[0194] Obtaining the frequency domain position of the working information in the working carrier;

[0195] Obtaining a frequency domain position of a guard band of a working carrier based on the frequency domain position of the working information;

[0196] A background carrier is inserted into the guard band frequency domain position to obtain the input signal.

[0197] Furthermore, the device is also used for:

[0198] Obtain the time domain position of the operating carrier transmission power;

[0199] The transmission power of the background carrier in the time domain is controlled to synchronize the time distribution of the background carrier and the working carrier.

[0200] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0201] An embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when run.

[0202] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0203] An embodiment of the present disclosure further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0204] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0205] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0206] Obviously, those skilled in the art should understand that the modules or steps of the present disclosure described above can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices, they can be implemented using program code executable by the computing device, and 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 performed in a different order than herein, or they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present disclosure is not limited to any particular combination of hardware and software.

[0207] The foregoing description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A method for compensating a power amplifier trap effect, comprising: Insert a background carrier at a frequency domain position of a guard band of a working carrier to obtain an input signal; Monitoring the signal quality of the output signal of the transmission channel output port based on the background carrier; When the signal quality is unqualified, obtaining the service load of the working carrier; The transmission power of the background carrier is adjusted based on the traffic load of the working carrier to eliminate the power amplifier trap effect.

2. The method according to claim 1, wherein: The signal quality of the output signal of the output port of the transmission channel based on the background carrier monitoring includes: identifying measurement data carried by the background carrier; A signal quality of the output signal is measured based on the measurement data.

3. The method according to claim 2, wherein: Before inserting the background carrier at the guard band frequency domain position of the working carrier, the method further includes: In case the working carrier is detected, generating a use signal based on the maximum number of sub-bands that the background carrier can carry information; The use signal is modulated to obtain the background carrier.

4. The method according to claim 3, wherein: The signal quality of the output signal of the output port of the transmission channel based on the background carrier monitoring includes: Obtaining a first angle sequence based on the cross-correlation of the output signal and the angle of the background carrier, wherein the angle of the background carrier is obtained based on the use signal; Obtaining a second angle sequence based on the angle autocorrelation of the output signal and the background carrier; An angle difference between the first angle sequence and the second angle sequence is calculated, and the signal quality is determined based on the angle difference.

5. The method according to claim 3, wherein: The step of generating a use signal based on a maximum number of sub-bands that can carry information on the background carrier when the working carrier is detected includes: Obtaining a maximum 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; A usage signal is generated based on the maximum prime number.

6. The method according to claim 1, wherein: The inserting of a background carrier at a frequency domain position of a guard band of a working carrier to obtain an input signal comprises: Acquire the frequency domain position of the working information in the working carrier; Obtaining a frequency domain position of a guard band of the working carrier based on the frequency domain position of the working information; The background carrier is inserted into the frequency domain position of the guard band to obtain an input signal.

7. The method according to claim 1, wherein: Also includes: Obtaining the time domain position of the working carrier transmission power; The transmission power of the background carrier at the time domain position is controlled so that the time distribution of the background carrier and the working carrier are kept synchronized.

8. A device for compensating a power amplifier trap effect, comprising: A preprocessing module is configured to insert a background carrier at a frequency domain position of a guard band of a working carrier to obtain an input signal; A measurement module, configured to monitor the signal quality of an output signal of an output port of a transmission channel based on the background carrier; An acquisition module, configured to acquire the service load of the working carrier when the signal quality is unqualified; The processing module is 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.

9. A computer-readable storage medium having a computer program stored therein, 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 in the memory and executable on the processor, wherein the processor implements the steps of the method described in any one of claims 1 to 7 when executing the computer program.

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