Power calibration method and device, radio frequency system, communication equipment and storage medium

Abstract

The invention relates to a power calibration method and device, a radio frequency system, communication equipment and a storage medium. The method comprises the following steps: acquiring output power of a power amplifier after performing power amplification processing on a radio frequency signal; according to the radio frequency parameter and the output power of the radio frequency signal and a preset compensation data set, a compensation parameter of the power amplifier is obtained, the compensation data set comprises multiple pieces of compensation data, and each piece of compensation data is used for representing the mapping relation among the preset output power of the power amplifier, the radio frequency parameter and the compensation parameter; the power supply voltage of the power amplifier is adjusted according to the output power, reference calibration data and the compensation parameters, and the reference calibration data is used for representing the mapping relation between the output power of the power amplifier and the power supply voltage. By adopting the method, the reference calibration data can be adjusted by utilizing the compensation parameters according to different application scenes of the power amplifier, so that the power supply voltage of the power amplifier is adjusted, and the purposes of reducing power consumption and improving power are achieved.

Description

Technical Field

[0001] The present application relates to the field of radio frequency technology, and in particular to a power calibration method and apparatus, a radio frequency system, a communication device and a storage medium. Background Art

[0002] With the development of radio frequency technology, communication devices with wireless communication functions (such as mobile phones, tablets, etc.) are becoming more and more popular and more and more powerful.

[0003] Communication equipment usually includes a power amplifier (PA) to support the power amplification processing of radio frequency signals, so as to transmit them outward through the antenna to achieve communication functions. In the application process, it is generally necessary to calibrate the output power of the power amplifier to meet various communication requirements. However, there is still room for improvement in the calibration method in the related art. Summary of the invention

[0004] The present application provides a power calibration method and apparatus, a radio frequency system, a communication device, and a storage medium capable of optimizing power consumption and power.

[0005] In a first aspect, the present application provides a power calibration method, the method comprising:

[0006] Obtaining the output power of the radio frequency signal after the power amplifier performs power amplification processing on the radio frequency signal;

[0007] Acquire the compensation parameters of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset compensation data set; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, radio frequency parameters and compensation parameters of the power amplifier;

[0008] The supply voltage of the power amplifier is adjusted according to the output power, the reference calibration data and the compensation parameter; wherein the reference calibration data is used to represent a mapping relationship between the output power and the supply voltage of the power amplifier.

[0009] In a second aspect, the present application further provides a power calibration device, the device comprising:

[0010] The first acquisition module is used to obtain the output power of the radio frequency signal after the power amplifier performs power amplification processing on the radio frequency signal;

[0011] A second acquisition module, configured to acquire compensation parameters of the power amplifier according to the RF parameters of the RF signal, the output power and a preset compensation data set; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier;

[0012] An adjustment module is used to adjust the supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; wherein the reference calibration data is used to represent the mapping relationship between the output power and the supply voltage of the power amplifier.

[0013] In a third aspect, the present application further provides a radio frequency system, the radio frequency system comprising:

[0014] A power amplifier, used to support power amplification processing of radio frequency signals;

[0015] A power detection circuit, connected to the power amplifier, for detecting the output power of the power amplifier;

[0016] A power supply circuit, connected to the power amplifier, for providing a power supply voltage to the power amplifier;

[0017] The processing circuit is respectively connected to the power detection circuit and the power supply circuit, and is used to obtain the compensation parameters of the power amplifier according to the RF parameters of the RF signal, the output power and a preset compensation data set, and adjust the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameters; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier; and the reference calibration data is used to represent a mapping relationship between the output power of the power amplifier and the supply voltage.

[0018] In a fourth aspect, the present application further provides a communication device, wherein the communication device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the power calibration step described in the first aspect is implemented.

[0019] In a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the power calibration steps described in the first aspect are implemented.

[0020] The above-mentioned power calibration method and device, radio frequency system, communication equipment and storage medium obtain the output power of the power amplifier after power amplification processing of the radio frequency signal, and obtain the compensation parameters of the power amplifier according to the radio frequency parameters, output power and preset compensation data set of the radio frequency signal, and adjust the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation parameters. Since the compensation data set includes multiple compensation data that represent the mapping relationship between the preset output power, radio frequency parameters and compensation parameters of the power amplifier, the compensation parameters corresponding to the radio frequency parameters and output power can be obtained from the compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. Compared with directly calling the reference calibration data to calibrate the output power of the power amplifier, the present application refines different application scenarios of the power amplifier from the radio frequency parameters of the radio frequency signal, and uses the compensation parameters to adaptively compensate the reference calibration data for radio frequency signals with different radio frequency parameters, so as to achieve the purpose of reducing power consumption and improving transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is one of the flowcharts of a power calibration method in one embodiment;

[0022] Figure 2 A schematic diagram of a curve of reference calibration data in one embodiment;

[0023] Figure 3 FIG2 is a second schematic diagram of a power calibration process in an embodiment;

[0024] Figure 4 FIG3 is a flow chart of a power calibration method according to an embodiment;

[0025] Figure 5 A schematic diagram of a representation form of a compensation data set in one embodiment;

[0026] Figure 6 FIG4 is a fourth flow chart of a power calibration method in an embodiment;

[0027] Figure 7 A schematic diagram of a curve of reference calibration data and a voltage compensation data set in one embodiment;

[0028] Figure 8 is a curve diagram of reference calibration data and voltage compensation data set in another embodiment;

[0029] Fig. 9 FIG5 is a fifth flow chart of a power calibration method in an embodiment;

[0030] Fig.10A schematic diagram of a curve of reference calibration data and a power compensation data set in one embodiment;

[0031] Fig.11 A schematic diagram of a curve of reference calibration data and a power compensation data set in another embodiment;

[0032] Fig.12 Data related to optimizing power consumption using a power calibration method in one embodiment;

[0033] Fig.13 Data related to optimizing power using a power calibration method in one embodiment;

[0034] Fig.14 is a structural block diagram of a radio frequency system in one embodiment;

[0035] Fig.15 is a structural block diagram of a power calibration device in one embodiment;

[0036] Fig.16 FIG. 4 is a diagram showing the internal structure of a communication device in one embodiment. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] The power calibration method and radio frequency system provided in the embodiments of the present application can be applied to communication devices with wireless communication functions, and the communication devices can be handheld devices, vehicle-mounted devices, customer premise equipment (Customer Premise Equipment, CPE), wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (User Equipment, UE) (for example, mobile phones), mobile stations (Mobile Station, MS), etc.

[0039] The power calibration method provided in the embodiment of the present application is applicable to average power tracking (Average Power Tracking, APT) technology and envelope tracking (Envelope Tracking, ET), and is also applicable to digital pre-distortion (Digital Pre-Distortion, DPD) calibration technology, and is also applicable to other suitable calibration technologies. Figure 1 A power calibration method is provided, which includes the following steps S102 to S106.

[0040] S102: Obtain the output power of the radio frequency signal after the power amplifier performs power amplification processing on the radio frequency signal.

[0041] In the embodiment of the present application, the communication device is equipped with a power amplifier, and the power amplifier supports power amplification processing of different radio frequency signals. Among them, the radio frequency signal can be a 2G signal, a 3G signal, a 4G signal, a 5G signal, a WiFi signal, or a radio frequency signal supported by a subsequent evolution technology or other communication technology, which is not limited in the embodiment of the present application. In the embodiment of the present application, the output power obtained in step S102 is recorded as P1.

[0042] S104: Acquire compensation parameters of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset compensation data set.

[0043] The RF parameters are used to represent the relevant parameters of the RF signal characteristics, including but not limited to at least one of the frequency band parameters, uplink channel parameters, waveform parameters, modulation parameters, bandwidth parameters and resource block location parameters. The compensation data set is a pre-acquired data set, and the compensation data set includes multiple compensation data, each compensation data is used to represent the mapping relationship between the preset output power of the power amplifier, the RF parameters and the compensation parameters. The compensation data can be non-volatile data (Non-Volatile, NV), and the compensation data can be pre-stored in the non-volatile random access memory (Non-Volatile Random Access Memory, NVRAM) of the communication device. During the application process, the compensation parameters can be extracted through experimental testing, and the mapping relationship between the compensation parameters and the corresponding preset output power and RF parameters can be established to obtain the compensation data set. In addition, the compensation parameters can be obtained by any one or more methods of table lookup, linear interpolation and linear fitting, or by other suitable methods, which are not limited here.

[0044] S106: Adjust the power supply voltage of the power amplifier according to the output power, the reference calibration data and the compensation parameter.

[0045] The reference calibration data is used to represent the mapping relationship between the output power of the power amplifier and the supply voltage. The reference calibration data is pre-acquired and stored in the communication device. The reference calibration data is the original data used to calibrate the power amplifier. For RF signals with different RF parameters, the reference calibration data can be called to calibrate the output power of the power amplifier. The reference calibration data can be understood as universal calibration data, without considering the differences in RF parameters of RF signals. The reference calibration data can be expressed in the form of functions, curves, etc. Figure 2A curve diagram of reference calibration data is shown, wherein the horizontal axis represents the supply voltage V / v and the vertical axis represents the output power P / dBm. The supply voltage refers to the voltage required for the power amplifier to work normally, and can also be understood as the voltage provided by the power supply to the power amplifier.

[0046] In the embodiment of the present application, adjusting the power supply voltage of the power amplifier includes both reducing the power supply voltage and increasing the power supply voltage. The method for adjusting the power supply voltage can be determined according to the compensation parameter. Specifically, when the compensation parameter is a negative value, that is, when NV is less than 0, the power supply voltage of the power amplifier can be reduced to achieve the purpose of reducing power consumption while meeting the transmission requirements such as linearity requirements; when the compensation parameter is a positive value, the power supply voltage of the power amplifier can be reduced, that is, when NV is greater than 0, while meeting the transmission requirements such as linearity requirements, the purpose of improving throughput can be achieved.

[0047] The above-mentioned power calibration method obtains the output power of the power amplifier after power amplification processing of the RF signal, obtains the compensation parameters of the power amplifier according to the RF parameters, output power and preset compensation data set of the RF signal, and adjusts the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation parameters. Since the compensation data set includes multiple compensation data that represent the mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier, the compensation parameters corresponding to the RF parameters and output power can be obtained from the compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. Compared with directly calling the reference calibration data to calibrate the output power of the power amplifier, the embodiment of the present application refines the different application scenarios of the power amplifier from the RF parameters of the RF signal, so as to adaptively compensate the reference calibration data for RF signals with different RF parameters, so as to achieve the purpose of reducing power consumption and improving transmission performance.

[0048] In one embodiment, the radio frequency parameters of the radio frequency signal include at least one of a frequency band parameter, an uplink channel parameter, a waveform parameter, a modulation parameter, a bandwidth parameter, and a resource block position parameter. The frequency band parameter is used to indicate the frequency range of the radio frequency signal, and the frequency band parameter includes at least one of a low frequency band (LB), a middle frequency band (MB), a high frequency band (HB), an ultra high frequency band (UHB), and a millimeter wave band.

[0049] The uplink channel parameters are used to indicate the channel-related parameters for a communication device to send a radio frequency signal to other communication devices. The uplink channel parameters include at least one of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), a physical uplink control channel (Physical Uplink Control Channel, PUCCH), and a sounding reference signal (Sounding Reference signal, SRS).

[0050] The waveform parameters are used to represent the waveform of the radio frequency signal, and the waveform parameters include at least one of a discrete Fourier transform spread spectrum orthogonal frequency division multiplexing (Discrete Fourier Transform-Spread Orthogonal frequency-divisionmultiplexing, DFT-S-OFDM) waveform and a cyclic prefix orthogonal frequency division multiplexing (Cyclic Prefix OFDM, CP-OFDM) waveform.

[0051] The modulation parameters are used to indicate the modulation method of the RF signal. The modulation parameters include binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), and quadrature amplitude modulation (QAM), such as 16QAM, 64QAM, and 256QAM.

[0052] The bandwidth parameter refers to the channel width of the RF signal, that is, the bandwidth. The bandwidth of the RF signal ranges from 5 MHz to 100 MHz, as shown in Table 1 below.

[0053] Table 1 Channel bandwidth

[0054]

[0055] The resource block (RB) position parameter is used to indicate the resource block position where the RF signal is located. The resource block position parameter may include edge RB, Outer RB, and Inner RB. Table 2 shows the DFT-S-OFDM waveform (abbreviated as DFT) and CP-OFDM waveform (abbreviated as CP) corresponding to different modulation modes and RB positions.

[0056] Table 2 Waveform, modulation mode and RB position correspondence table

[0057]

[0058] The above-mentioned power calibration method divides the RF signal from multiple different dimensions through the frequency band parameters, uplink channel parameters, waveform parameters, modulation parameters, bandwidth parameters and resource block position parameters of the RF signal. Different scenarios in which the power amplifier performs power amplification processing on the RF signal can be subdivided according to these parameters, so that the output power of the power amplifier working in different scenarios is adaptively compensated according to the compensation data sets corresponding to different parameters. Compared with the related art, for different RF parameters such as DFT waveform and CP waveform, regardless of the modulation mode, the same reference calibration data is called, that is, the same set of output power and supply voltage is used. The calibration method provided in the embodiment of the present application subdivides the frequency band, uplink channel, waveform, modulation method, channel bandwidth and resource block position of the RF signal supported by the power amplifier, so as to achieve the purpose of reducing power consumption and increasing power to improve throughput.

[0059] In one embodiment, the compensation data set includes one of a power compensation data set and a voltage compensation data set. Among them, each power compensation data in the power compensation data set is used to represent the mapping relationship between the preset output power of the power amplifier, the radio frequency parameters and the compensation power, and each voltage compensation data in the voltage compensation data set is used to represent the mapping relationship between the preset output power of the power amplifier, the radio frequency parameters and the compensation voltage. In practical applications, the communication device can store at least one of the power compensation data set and the voltage compensation data set. During the calibration process, the communication device can select one from the power compensation data set and the voltage compensation data set, and use the compensation voltage or the compensation power to adjust the power supply voltage of the power amplifier. Based on the power compensation data set and the voltage compensation data set, the power supply voltage of the power amplifier can be adjusted by the compensation voltage from the dimension of the power supply voltage on the basis of the reference calibration data, and the power supply voltage of the power amplifier can be adjusted by the compensation power from the dimension of the output power on the basis of the reference calibration data, that is, the output power of the power amplifier is calibrated from the two dimensions of output power or supply voltage to achieve the purpose of reducing power consumption and improving throughput, thereby improving the diversity of power calibration methods.

[0060] In one embodiment, Figure 3 As shown, in the case where the compensation data set includes a voltage compensation data set, the power calibration method may include the following steps S302 to S310.

[0061] S302: Obtain the output power of the power amplifier after the power amplifier performs power amplification processing on the radio frequency signal.

[0062] In actual applications, the communication device sends the output power from the network side to the physical layer, so that the power supply voltage to be adjusted is calculated through the physical layer. This step is the same as the aforementioned step S102, and will not be repeated here.

[0063] S304: Obtain a compensation voltage of a power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset voltage compensation data set.

[0064] The voltage compensation data represents the mapping relationship between the preset output power of the power amplifier, the RF parameters of the RF signal, and the compensation voltage. Therefore, the corresponding compensation voltage can be obtained from the voltage compensation data set according to the output power of the power amplifier and the RF parameters of the RF signal. In the embodiment of the present application, the compensation voltage is recorded as ΔV. ΔV can be a negative value or a positive value.

[0065] S306: Acquire a calibration voltage corresponding to the output power according to the output power and the reference calibration data.

[0066] The calibration voltage refers to the supply voltage corresponding to the output power stored in the reference calibration data. The calibration voltage can be understood as the reference voltage used for calibration before compensation, or in other words, the calibration voltage is the voltage used to calibrate the power amplifier without considering the RF parameters of the RF signal. Figure 2 Taking the reference calibration data shown as an example, if the output power of the power amplifier obtained based on step S302 is 16.5dBm, the calibration voltage corresponding to the output power can be obtained as the calibration voltage Vd corresponding to point D; if the output power of the power amplifier obtained based on step S302 is 23dBm, the calibration voltage corresponding to the output power can be obtained as the calibration voltage Va corresponding to point A. In the embodiment of the present application, the calibration voltage is recorded as V1.

[0067] S308: Obtain a first target voltage of the power amplifier according to the calibration voltage and the compensation voltage.

[0068] The first target voltage is the voltage after the calibration voltage is compensated by the compensation voltage. In the embodiment of the present application, the first target voltage is recorded as V2. The first target voltage is positively correlated with the calibration voltage. Exemplarily, the first target voltage is the sum of the calibration voltage and the compensation voltage, that is, V2=V1+ΔV.

[0069] S310: Adjust the power supply voltage of the power amplifier to a first target voltage to supply power to the power amplifier.

[0070] When the compensation voltage ΔV is a negative value, the first target voltage is negatively correlated with the compensation voltage, and the first target voltage is less than the calibration voltage, that is, V2<V1. Therefore, on the basis of the calibration voltage, the calibration voltage is further reduced, and the power supply voltage of the power amplifier is adjusted to the first target voltage, and the power amplifier is powered by the first target voltage.

[0071] When the compensation voltage ΔV is a positive value, the first target voltage is positively correlated with the compensation voltage, and the first target voltage is greater than the calibration voltage, that is, V2>V1. Therefore, on the basis of the calibration voltage, the calibration voltage is further increased, and the power supply voltage of the power amplifier is adjusted to the first target voltage, and the power amplifier is powered by the first target voltage.

[0072] The power calibration method obtains the output power of the power amplifier after power amplification of the RF signal, obtains the compensation voltage of the power amplifier according to the RF parameters, output power and voltage compensation data set of the RF signal, and adjusts the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation voltage. Since the voltage compensation data set includes multiple voltage compensation data representing the mapping relationship between the preset output power, RF parameters and compensation voltage of the power amplifier, the compensation voltage corresponding to the RF parameters and output power can be obtained from the voltage compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. When the compensation voltage is a negative value, the calibration voltage is reduced to reduce the power supply voltage of the power amplifier. voltage, so that the power amplifier can reduce power consumption while meeting RF signal transmission requirements such as linearity requirements; and when the compensation voltage is a positive value, the calibration voltage is increased to increase the supply voltage of the power amplifier, so that the power amplifier can meet RF signal transmission requirements such as linearity requirements. The requirements can increase the output power of the power amplifier to improve the throughput of the communication device, thereby improving the transmission performance of the communication device. Compared with directly calling the calibration voltage in the reference calibration data to calibrate the output power of the power amplifier, the embodiment of the present application refines different application scenarios of the power amplifier from the RF parameters of the RF signal, so as to adaptively compensate the calibration voltage for RF signals with different RF parameters using the compensation voltage, so as to achieve the purpose of reducing power consumption and improving transmission performance.

[0073] In one embodiment, Figure 4 As shown, in the case where the compensation data set includes a power compensation data set, the power calibration method may include the following steps S402 to S410.

[0074] S402: Obtain the output power of the power amplifier after the power amplifier performs power amplification processing on the radio frequency signal. This step is the same as the above step S102, and will not be repeated here.

[0075] S404: Obtain compensation power of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset power compensation data set.

[0076] The power compensation data represents the mapping relationship between the preset output power of the power amplifier, the RF parameters of the RF signal, and the compensation power. Therefore, the corresponding compensation power can be obtained from the power compensation data set according to the output power of the power amplifier and the RF parameters of the RF signal. In the embodiment of the present application, the compensation power is recorded as ΔP. ​​ΔP can be a negative value or a positive value.

[0077] S406: Obtain a target power of the power amplifier according to the output power and the compensation power.

[0078] The target power is the power after the output power is compensated by the compensation power. In the embodiment of the present application, the target power is recorded as P2. The target power is positively correlated with the output power. Exemplarily, the target power is the sum of the output power and the compensation power, that is, P2 = P1 + ΔP.

[0079] When the compensation power ΔP is a negative value, the target power is negatively correlated with the compensation power, and the target power is less than the output power, that is, P2 < P1. When the compensation power ΔP is a positive value, the target power is positively correlated with the compensation power, and the target power is greater than the output power, that is, P2 > P1.

[0080] S408: Acquire a second target voltage corresponding to the target power according to the target power and the reference calibration data.

[0081] The second target voltage is a target power after the output power is compensated by the compensation power, and is a voltage corresponding to the target power obtained according to the reference calibration data. Figure 2 As an example, if the output power of the power amplifier obtained based on step S402 is the power at point C, and the target power of the power amplifier obtained based on steps S404 and S406 is the power at point A, then according to Figure 2 The reference calibration data shown can obtain the voltage corresponding to point A as the second target voltage. It can be understood that the voltage corresponding to point C is Figure 2 The reference calibration data shown is a calibration value provided, and the voltage corresponding to point A is a calibration value obtained after compensating and adjusting point C based on point C using the power calibration method provided in this application.

[0082] S410: Adjust the power supply voltage of the power amplifier to a calibration voltage to power the power amplifier.

[0083] The power calibration method obtains the output power of the power amplifier after power amplification of the RF signal, obtains the compensation power of the power amplifier according to the RF parameters, output power and power compensation data set of the RF signal, and adjusts the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation power. Since the power compensation data set includes multiple power compensation data representing the mapping relationship between the preset output power, RF parameters and compensation power of the power amplifier, the compensation power corresponding to the RF parameters and output power can be obtained from the power compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. When the compensation power is a negative value, the calibration power is reduced to reduce the power supply voltage of the power amplifier. voltage, so that the power amplifier can reduce power consumption while meeting RF signal transmission requirements such as linearity requirements; and when the compensation power is a positive value, the calibration power is increased to increase the supply voltage of the power amplifier, so that the power amplifier can meet RF signal transmission requirements such as linearity requirements. The requirements can increase the output power of the power amplifier to improve the throughput of the communication device, thereby improving the transmission performance of the communication device. Compared with directly calling the calibration power in the reference calibration data to calibrate the output power of the power amplifier, the embodiment of the present application refines different application scenarios of the power amplifier from the RF parameters of the RF signal, so as to adaptively compensate the calibration voltage for RF signals with different RF parameters using the compensation power, so as to achieve the purpose of reducing power consumption and improving transmission performance.

[0084] In one embodiment, the range of the preset output power of the power amplifier includes multiple power intervals. Among them, the preset output power ranges of each power interval are different. The number of power intervals is greater than 2, for example, it can be 5, 6, 8, and any other arbitrary values. Table 3 shows that a power interval is evenly divided in units of 5dBm, with a total of 5 power intervals. In practical applications, the power intervals can also be divided in an uneven manner. In order to facilitate the acquisition of compensation parameters, each power interval can be marked with an interval identifier, and the interval identifiers of each power interval are different. For example, the 5 power intervals in Table 3 are identified by numbers 1 to 5.

[0085] Table 3 Power interval division table

[0086] Power Zone 1 20dBm~max Power Zone 2 15~20dBm Power Zone 3 10~15dBm Power Zone 4 5~10dBm Power Zone 5 0~5dBm

[0087] Each power interval is configured with multiple sub-compensation data sets, and the compensation data in each sub-compensation data set is used to represent the mapping relationship between the power interval, the RF parameters, and the compensation parameters. The number of sub-compensation data sets configured for each power interval is greater than 2, for example, it can be 3, 5, 8, etc. Exemplarily, the sub-compensation data set can be represented in a table, referred to as a compensation sub-table. Different sub-compensation data sets can also be marked with different subset identifiers to obtain compensation parameters. The sub-compensation data sets can be divided using the RF parameters of the RF signal. Taking the RF parameters including frequency band parameters as an example, the sub-compensation data sets can be divided into LB sub-compensation data sets, MB sub-compensation data sets, HB sub-compensation data sets, and UHB sub-compensation data sets.

[0088] Figure 5 Seven power intervals [0] to [6] are shown, and each power interval is configured with eight compensation sub-tables [0] to [7], wherein compensation sub-table [0] includes compensation parameters corresponding to the output power within power interval [0], the RF signal being the LB band, the waveform (DFT-S-OFDM, CP-OFDM), the modulation mode (BPSK, QPSK, 16QAM, 64QAM, 256QAM), and the resource block position (edgeRB, Outer RB, and Inner RB). Similarly, unlike compensation sub-table [0], compensation sub-tables [1] to [3] correspond to MB, HB, and UHB, respectively, and compensation sub-tables [4] and [5] correspond to some special frequency bands such as band3 and band28. Compensation sub-tables [4] and [5] are used as backup tables (reverse). In practical applications, taking the power amplifier performing power amplification processing on the RF signal of band1 as an example, first find out that its output power is in the power interval [0], and then band1 belongs to the LB frequency band, then the compensation sub-table index value idx corresponding to band1 is 1, that is, find the compensation parameter NV from the compensation sub-table [1] according to the waveform, modulation mode and resource block position of the RF signal. Table 4 shows Figure 5 The correspondence between various frequency bands and compensation sub-table index values.

[0089] Table 4 Correspondence table between frequency band and compensation sub-table index value idx

[0090] band[1] idx 1 band[2] idx 1 band[3] idx 5 band[5] idx 0 band[7] idx 2 band[8] idx 0 band

[20] idx 0 band

[28] idx 6 band

[40] idx 2 band

[41] idx 2 band

[77] idx 3 band

[78] idx 3 band

[79] idx 4

[0091] In practical applications, we can use Figure 5 The method shown stores compensation data corresponding to multiple typical output power points, and compensation parameters corresponding to other output power points can be obtained by linear interpolation or curve fitting, etc., which is not limited here.

[0092] The above-mentioned power calibration method divides the preset output power of the power amplifier in the form of power intervals, and represents the mapping relationship between the power intervals, the RF parameters of the RF signal and the compensation parameters in combination with the sub-compensation data set. During the power calibration process, the compensation parameters can be obtained by indexing the power intervals and the sub-compensation data set, and the power supply voltage of the power amplifier can be adjusted, thereby improving the data processing rate.

[0093] In one embodiment, Figure 6 As shown, the power calibration method may further include the following steps S602 to S606 to obtain a compensation data set.

[0094] S602: Obtain a first reference supply voltage when the power amplifier is at output power and a linearity parameter satisfies a preset linearity condition.

[0095] The linearity parameter is used to indicate the linearity of the power amplifier. Exemplarily, the linearity parameter includes an adjacent channel leakage ratio (ACLR). The preset linearity condition is preset and can be set according to the application scenario of the power amplifier. Exemplarily, the linearity parameter satisfies the preset linearity condition for the linearity parameter to be less than a preset linearity threshold. For example, if the linearity parameter is ACLR and the preset linearity threshold is set to -33dBc, then the ACLR of the power amplifier is less than -33dBc, indicating that the linearity parameter of the power amplifier satisfies the preset linearity condition.

[0096] The first reference supply voltage refers to the supply voltage at which the linearity parameter of the power amplifier meets the preset linearity condition at the output power. For example, the first reference supply voltage may be the minimum supply voltage at which the power amplifier meets the preset linearity condition at the output power. It can be understood that the linearity of the power amplifier is good at the output power, and the supply voltage can be appropriately reduced to reduce the power consumption of the power amplifier under the premise that the linearity parameter meets the preset linearity condition.

[0097] S604: Acquire compensation parameters according to the output power, the first reference supply voltage and the reference calibration data.

[0098] The compensation parameter includes compensation voltage or compensation power. Taking the compensation parameter as compensation voltage as an example, Figure 7As shown, the solid line represents the reference calibration data, and the dotted line represents the first reference supply voltage of the radio frequency signal RF1 (for example, RF1 has a CP waveform, QPSK, and RB1 position) at each output power and the linear parameters meet the preset linear conditions. For example, when the output power of the power amplifier is 24.7dBm, according to the solid line, the calibration voltage corresponding to the output power is the voltage at point A Va, and at the same output power, according to the dotted line, the first reference supply voltage of the radio frequency signal RF1 is the voltage at point B Vb, then the compensation parameter ΔV1=Vb-Va<0; when the output power of the power amplifier is 16.5dBm, according to the solid line, the calibration voltage corresponding to the output power is the voltage at point C Vc, and at the same output power, according to the dotted line, the first reference supply voltage of the radio frequency signal RF1 is the voltage at point D Vd, then the compensation parameter ΔV2=Vd-Vc<0.

[0099] Take the compensation parameter as compensation power as an example, Figure 8 As shown, the solid line represents the reference calibration data, and the dotted line represents the first reference supply voltage of the RF signal RF1 at each output power and the linear parameters satisfy the preset linear condition. For example, when the output power of the power amplifier is 24.7dBm, according to the solid line, the output power corresponds to point A, and according to the dotted line, the first reference supply voltage of the RF signal RF1 at the output power is the voltage Vb at point B, and according to the solid line, the calibration power corresponding to the first reference supply voltage Vb is the power Pc at point C, then the compensation parameter ΔP1=Pc-Pa<0; when the output power of the power amplifier is 16.5dBm, according to the solid line, the output power corresponds to point D, and according to the dotted line, the first reference supply voltage of the RF signal RF1 at the output power is the voltage Ve at point E, and according to the solid line, the calibration power corresponding to the first reference supply voltage Ve is the power Pf at point F, then the compensation parameter ΔP2=Pf-Pd<0.

[0100] S606: Acquire a compensation data set according to the radio frequency parameters, output power and compensation parameters.

[0101] After the compensation parameters are obtained based on the above steps, a mapping relationship among the RF parameters, the output power and the compensation parameters is established, thereby obtaining a compensation data set.

[0102] The above-mentioned power calibration method obtains the first reference supply voltage of the power amplifier under the output power and when the linearity parameters meet the preset linear conditions, and obtains the compensation parameters according to the output power, the first reference supply voltage and the reference calibration data, and obtains the compensation data set according to the RF parameters, the output power and the compensation parameters. Therefore, on the basis of the reference calibration data, the corresponding compensation parameters can be obtained from the compensation data set according to the RF parameters and the output power, and the reference calibration data can be compensated to adjust the supply voltage of the power amplifier and realize the calibration of the output power of the power amplifier. In this way, when the linearity meets the requirements, it can be decoupled from the MPR to achieve the purpose of reducing power consumption.

[0103] In one embodiment, Fig. 9 As shown, the power calibration method may further include the following steps S902 to S906.

[0104] S902: When the signal strength of the radio frequency signal is less than a preset strength threshold, increase the output power according to a preset power step.

[0105] The signal strength of the RF signal is less than the preset strength threshold, indicating that the spatial path attenuation of the RF signal is large, resulting in a low Modulation and Coding Scheme (MCS) value called by the network, and the throughput of the communication equipment is poor. In this case, the embodiment of the present application increases the output power by preset power to obtain better signal quality and achieve higher throughput performance. Among them, the preset power step is used to indicate the increase in output power, and can also be understood as the reduction in maximum power reduction (MPR). The preset power step is pre-set and can be set by experiment. For example, the preset power step can be set to 1dBm, 2dBm, and 5dBm. The size of the preset power step affects the increase in output power.

[0106] S904: Obtain a second reference supply voltage when the power amplifier is under increased output power and the linearity parameter satisfies a preset linearity condition.

[0107] The second reference supply voltage refers to the supply voltage whose linearity parameter satisfies the preset linearity condition under the increased output power of the power amplifier. For example, the second reference supply voltage may be the minimum supply voltage under the increased output power of the power amplifier and whose linearity parameter satisfies the preset linearity condition. It can be understood that after the output power of the power amplifier is increased, in order to meet the preset linearity condition, the supply voltage may be appropriately increased to improve the signal quality while also meeting the linearity requirement. The preset linearity condition may refer to the relevant content of the aforementioned step S602, which will not be described in detail here.

[0108] S906: Acquire compensation parameters according to the output power, the second reference supply voltage and the reference calibration data.

[0109] Take the compensation voltage as an example, Fig.10 As shown, the curve represents the reference calibration data. For example, when the output power of the power amplifier after power amplification of the RF signal RF2 (for example, DFT waveform, 256QAM, RB2 position) is 16.5dBm, according to the curve, the output power corresponds to point E, the MPR is reduced by 2dBm, and the output power is increased to 18.5dBm corresponding to point F. According to the curve, the calibration voltage when the output power is 18.5dBm is the voltage Vg at point G. The linearity of point G may not meet the requirements due to high-order modulation and other reasons. According to experimental measurements, the second reference supply voltage required to meet the preset linear condition is the voltage Vh at point H. Therefore, the compensation voltage ΔV3=Vh-Vg>0.

[0110] Take the compensation parameter as compensation power as an example, Fig.11 As shown, the curve represents the reference calibration data. For example, when the output power of the power amplifier after power amplification of the RF signal RF2 (for example, DFT waveform, 256QAM, RB2 position) is 16.5dBm, according to the curve, the output power corresponds to point G, the MPR is reduced by 2dBm, and the output power is increased to 18.5dBm. According to the curve, the calibration voltage when the output power is 18.5dBm is the voltage Vh at point H. The linearity at point H may not meet the requirements due to high-order modulation and other reasons. According to experimental measurements, the second reference supply voltage required to meet the preset linear condition is the voltage Vm at point M. According to the curve, the calibration power when the voltage is Vm is the power Pn at point N. Therefore, the compensation power ΔP3=Pn-Ph>0.

[0111] S908: Acquire a compensation data set according to the radio frequency parameters, the increased output power, and the compensation parameters.

[0112] After the compensation parameters are obtained based on the above steps, a mapping relationship among the RF parameters, the output power and the compensation parameters is established, thereby obtaining a compensation data set.

[0113] The above-mentioned power calibration method, when the signal strength of the RF signal is less than the preset strength threshold, increases the output power according to the preset power step, obtains the second reference supply voltage of the power amplifier under the increased output power and the linearity parameter that meets the preset linear condition, and obtains the compensation parameters according to the output power, the second reference supply voltage and the reference calibration data, and obtains the compensation data set according to the RF parameters, the increased output power and the compensation parameters, so that on the basis of the reference calibration data, the corresponding compensation parameters can be obtained from the compensation data set according to the RF parameters and the output power, and the reference calibration data can be compensated to adjust the power supply voltage of the power amplifier to realize the calibration of the output power of the power amplifier. In this way, the purpose of improving the throughput can be achieved by increasing the output power of the power amplifier when the linearity meets the requirements, thereby improving the transmission performance of the communication equipment. Exemplarily, for different modulated signals at the same power, such as a DFT-S-OFDM signal and a CP-OFDM signal, in order to achieve the same linearity, that is, the same ACLR, since the peak-to-average ratio of the CP-OFDM signal is larger than that of the DFT-S-OFDM signal, the power calibration method provided in the above embodiment can be adopted. For the DFT-S-OFDM signal and the CP-OFDM signal with the same linearity requirements, the power supply voltage of the power amplifier can be increased for the CP-OFDM signal to further improve the linearity of the CP-OFDM signal, so as to achieve the same output power and the same linearity.

[0114] In one embodiment, the power calibration method may further include: a step of obtaining the signal strength of the radio frequency signal output by the power amplifier. Based on this, step S106 "adjusting the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter" may include: when the signal strength is greater than a first strength threshold, reducing the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation parameters, and when the signal strength is less than a second strength threshold, increasing the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation parameters.

[0115] Among them, the second strength threshold is greater than or equal to the first strength threshold, and the first strength threshold and the second strength threshold are pre-set and can be obtained through experiments. The signal strength of the RF signal is greater than the first preset strength threshold, indicating that the strength of the RF signal is weak, the signal quality is good, and it meets the transmission requirements of the communication device. In this case, the power consumption of the power amplifier can be optimized, that is, by reducing the power supply voltage of the power amplifier through a compensation parameter with a negative value, thereby achieving the purpose of reducing power consumption. The signal strength of the RF signal is less than the second preset strength threshold, indicating that the strength of the RF signal is high, the signal quality is poor, and it does not meet the transmission requirements of the communication device. In this case, the power of the power amplifier can be optimized, that is, by increasing the power supply voltage of the power amplifier through a compensation parameter with a positive value, thereby increasing the output power of the power amplifier, increasing the throughput of the communication device, and then improving the transmission performance of the communication device.

[0116] The above-mentioned power calibration method obtains the signal strength of the RF signal output by the power amplifier and determines the strength of the RF signal by threshold comparison. In the case of a strong signal scenario, the power supply voltage of the power amplifier is reduced by a compensation parameter with a negative value, thereby achieving the purpose of reducing power consumption while meeting the linearity requirement; and in the case of a weak signal scenario, the power supply voltage of the power amplifier is increased by a compensation parameter with a positive value, thereby achieving the purpose of increasing power while meeting the linearity requirement, thereby improving the throughput of the communication equipment and improving the transmission performance.

[0117] In one embodiment, a power calibration method is provided, taking a voltage compensation data set as an example, combining Figure 7 , Figure 8 , Fig.10 and Fig.11 , the power calibration process is explained for two scenarios: power consumption optimization scenario and power optimization scenario.

[0118] For the radio frequency signal RF3 of the PUSCH channel, the radio frequency signal RF3 has a DFT waveform, the modulation method adopts 16QAM, and the resource block position is RB3. The output power of the radio frequency signal RF3 after the power amplifier performs power amplification processing is 24.7dBm corresponding to Figure 7 Then, the signal strength of the radio frequency signal RF3 is obtained, and if the signal strength is greater than the first strength threshold, the power consumption optimization mode is adopted. In the power consumption optimization scenario, the power consumption optimization mode is adopted. Figure 6 The power interval and compensation sub-table shown in the figure are based on the output power of 24.7dBm and the waveform, modulation mode and RB position of the RF signal RF3. Figure 6 The compensation voltage ΔV1<0 is obtained, that is, Figure 7Then, the target voltage Vb=Va+ΔV1 is calculated based on the calibration voltage Va at point A and the compensation voltage ΔV1, thereby reducing the power supply voltage of the power amplifier to the target voltage Vb and decoupling from the MPR.

[0119] For the radio frequency signal RF4 of the PUSCH channel, the radio frequency signal RF4 has a CP waveform, the modulation method adopts 256QAM, and the resource block position is RB4. The output power of the radio frequency signal RF4 after the power amplifier performs power amplification processing is 16.5dBm corresponding to Fig.10 Then, the signal strength of the RF signal RF4 is obtained, and if the signal strength is less than the second strength threshold, the power optimization mode is adopted. In the power optimization scenario, the MPR is reduced by 2dBm, and the output power is increased to 18.5dBm. Figure 6 The power interval and compensation sub-table shown in the figure are based on the output power of 18.5dBm and the waveform, modulation mode and RB position of the RF signal RF4. Figure 6 The compensation voltage ΔV3>0 is obtained, that is, Fig.10 Then, the target voltage Vh=Ve+ΔV3 is calculated based on the calibration voltage Ve at point E and the compensation voltage ΔV3, thereby increasing the power supply voltage of the power amplifier to the target voltage Vh.

[0120] For the radio frequency signal RF5 of the PUCCH channel, the radio frequency signal RF5 has a DFT waveform, the modulation method adopts QPSK, and the resource block position is RB5. The output power of the radio frequency signal RF5 after the power amplifier performs power amplification processing is 24.7dBm corresponding to Figure 8 Then, the signal strength of the radio frequency signal RF5 is obtained, and if the signal strength is greater than the first strength threshold, the power consumption optimization mode is adopted. In the power consumption optimization scenario, the power consumption optimization mode is adopted. Figure 6 The power interval and compensation sub-table shown in the figure are based on the output power of 24.7dBm and the waveform, modulation mode and RB position of the RF signal RF5. Figure 6 The compensation power ΔP1<0 is obtained, that is, Figure 8 Then, the target power Pc=Pa+ΔP1 is calculated based on the calibration power Pa at point A and the compensation voltage ΔP1, and the corresponding target voltage Vc is obtained based on the target power Pc, thereby reducing the power supply voltage of the power amplifier to the target voltage Vc and decoupling from the MPR.

[0121] For the radio frequency signal RF6 of the PUCCH channel, the radio frequency signal RF6 has a CP waveform, a modulation method of 64QAM, and a resource block position of RB6. The output power of the radio frequency signal RF6 after the power amplifier performs power amplification processing is 16.5dBm corresponding to Fig.11Then, the signal strength of the RF signal RF6 is obtained, and if the signal strength is less than the second strength threshold, the power optimization mode is adopted. In the power optimization scenario, the MPR is reduced by 2dBm, and the output power is increased to 18.5dBm. Figure 6 The power interval and compensation sub-table shown in the figure are based on the output power 18.5dBm and the waveform, modulation mode and RB position of the RF signal RF6. Figure 7 The compensation power ΔP3>0 is obtained, that is, Fig.11 Then, the target voltage Pn=Ph+ΔP3 is calculated based on the calibration power Ph at point H and the compensation power ΔP3, and the corresponding target voltage Vn is obtained based on the target power Pn, so that the power supply voltage of the power amplifier is increased to the target voltage Vn.

[0122] Fig.12 The figure shows the power consumption benefit of the RF signal with N8 frequency band, 20MHz bandwidth, DFT waveform and QPSK modulation mode in 5G NR technology by using compensation voltage or compensation power. Fig.13 The figure shows the throughput gain of the RF signal in the N28 frequency band by using the compensation voltage or compensation power.

[0123] The above power calibration method can subdivide the application scenarios of the power amplifier based on the waveform, modulation method, RB position and other dimensional characteristics of the RF signal, optimize the power consumption while meeting the linearity requirements, and increase the high-order modulation power to the optimal value in scenarios with strong throughput requirements.

[0124] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0125] In one embodiment, Fig.14As shown, a radio frequency system is provided, which includes a power amplifier 10, a power detection circuit 20, a power supply circuit 30 and a processing circuit 40. The power amplifier 10 is used to support power amplification processing of radio frequency signals. The power detection circuit 20 is connected to the power amplifier 10, and the power detection circuit 20 is used to detect the output power of the power amplifier. The power supply circuit 30 is connected to the power amplifier 10, and the power supply circuit 30 is used to provide a power supply voltage for the power amplifier 10. The processing circuit 40 is respectively connected to the power detection circuit 20 and the power supply circuit 30, and the processing circuit 40 is used to obtain compensation parameters of the power amplifier 10 according to the radio frequency parameters, output power and preset compensation data set of the radio frequency signal, and adjust the power supply voltage of the power amplifier 10 according to the output power, reference calibration data and compensation parameters.

[0126] Exemplarily, the power detection circuit 20 includes a coupler, the power supply circuit 30 includes a DCDC converter, and the processing circuit 40 includes a radio frequency integrated circuit (RFIC) 41, wherein the power amplifier 10 is connected to the DCDC converter and the RFIC respectively, and the power amplifier 10 performs power amplification processing on the radio frequency signal from the RFIC 21 under the action of the power supply voltage provided by the DCDC converter, so as to transmit it through the antenna ANT; the coupler is connected to the power amplifier 10, the antenna ANT, and the RFIC respectively, and the coupler detects the output power of the power amplifier 10 and transmits it to the RFIC. The RFIC adjusts the power supply voltage of the DCDC converter according to the output power to calibrate the output power of the power amplifier 10.

[0127] The above-mentioned radio frequency system includes a power amplifier 10, a power detection circuit 20, a power supply circuit 30 and a processing circuit 40. The output power of the power amplifier 10 after power amplification processing of the radio frequency signal is obtained through the power detection circuit 20. The compensation parameters of the power amplifier 10 are obtained according to the radio frequency parameters, output power and preset compensation data set of the radio frequency signal through the processing circuit 40, and the power supply voltage of the power amplifier 10 is adjusted according to the output power, reference calibration data and compensation parameters. Since the multiple compensation data included in the compensation data set represent the mapping relationship between the preset output power, radio frequency parameters and compensation parameters of the power amplifier 10, the compensation parameters corresponding to the radio frequency parameters and output power can be obtained from the compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. Compared with directly calling the reference calibration data to calibrate the output power of the power amplifier, the embodiment of the present application refines different application scenarios of the power amplifier from the radio frequency parameters of the radio frequency signal, so as to adaptively compensate the reference calibration data for radio frequency signals with different radio frequency parameters using compensation parameters, so as to achieve the purpose of reducing power consumption and improving transmission performance.

[0128] In one embodiment, the processing circuit is also used to: obtain the compensation voltage of the power amplifier according to the RF parameters of the RF signal, the output power and the preset voltage compensation data set; obtain the calibration voltage corresponding to the output power according to the output power and the reference calibration data; obtain the first target voltage of the power amplifier according to the calibration voltage and the compensation voltage; and adjust the power supply voltage of the power amplifier to the first target voltage to power the power amplifier.

[0129] In one embodiment, the processing circuit is also used to: obtain the compensation power of the power amplifier according to the RF parameters of the RF signal, the output power and the preset power compensation data set; obtain the target power of the power amplifier according to the output power and the compensation power; obtain a second target voltage corresponding to the target power according to the target power and the reference calibration data; and adjust the power supply voltage of the power amplifier to the second target voltage to power the power amplifier.

[0130] In one embodiment, the processing circuit is further used to: obtain a first reference supply voltage of the power amplifier at the output power and when the linearity parameters satisfy a preset linear condition; obtain the compensation parameters according to the output power, the first reference supply voltage and the reference calibration data; and obtain the compensation data set according to the RF parameters, the output power and the compensation parameters.

[0131] In one embodiment, the processing circuit is further used to: increase the output power according to a preset power step when the signal strength of the RF signal is less than a preset strength threshold; obtain a second reference supply voltage of the power amplifier at the increased output power and a linearity parameter that satisfies a preset linear condition; obtain the compensation parameter according to the output power, the second reference supply voltage and the reference calibration data; obtain the compensation data set according to the RF parameters, the increased output power and the compensation parameters.

[0132] In one embodiment, the processing circuit is further used to: obtain the signal strength of the radio frequency signal output by the power amplifier; when the signal strength is greater than a first strength threshold, reduce the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; when the signal strength is less than a second strength threshold, increase the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; wherein the second strength threshold is greater than or equal to the first strength threshold.

[0133] Based on the same inventive concept, the embodiment of the present application also provides a power calibration device for implementing the power calibration method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more power calibration device embodiments provided below can refer to the limitations on the power calibration method above, and will not be repeated here.

[0134] In one embodiment, Fig.15 As shown, a power calibration device 1500 is provided, including: a first acquisition module 1501, a second acquisition module 1502 and an adjustment module 1503.

[0135] The first acquisition module 1501 is used to acquire the output power after the power amplifier performs power amplification processing on the radio frequency signal.

[0136] The second acquisition module 1502 is used to obtain the compensation parameters of the power amplifier according to the RF parameters of the RF signal, the output power and a preset compensation data set; wherein the compensation data set includes multiple compensation data, each of which is used to represent the mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier.

[0137] The adjustment module 1503 is used to adjust the supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; wherein the reference calibration data is used to represent the mapping relationship between the output power and the supply voltage of the power amplifier.

[0138] The above-mentioned power calibration device 1500 obtains the output power of the power amplifier after power amplification processing of the RF signal through the first acquisition module 1501, obtains the compensation parameters of the power amplifier according to the RF parameters, output power and preset compensation data set of the RF signal through the second acquisition module 1502, and adjusts the power supply voltage of the power amplifier according to the output power, reference calibration data and compensation parameters through the adjustment module 1503. Since the multiple compensation data included in the compensation data set represent the mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier, the compensation parameters corresponding to the RF parameters and output power can be obtained from the compensation data set, so that the power supply voltage of the power amplifier in the output power scenario can be adjusted based on the reference calibration data. Compared with directly calling the reference calibration data to calibrate the output power of the power amplifier, the embodiment of the present application refines the different application scenarios of the power amplifier from the RF parameters of the RF signal, so as to adaptively compensate the reference calibration data for RF signals with different RF parameters, so as to achieve the purpose of reducing power consumption and improving transmission performance.

[0139] In one embodiment, the second acquisition module 1502 is used to acquire the compensation voltage of the power amplifier according to the RF parameters of the RF signal, the output power and the preset voltage compensation data set. The adjustment module 1503 is used to: acquire the calibration voltage corresponding to the output power according to the output power and the reference calibration data; acquire the first target voltage of the power amplifier according to the calibration voltage and the compensation voltage; and adjust the power supply voltage of the power amplifier to the first target voltage to power the power amplifier.

[0140] In one embodiment, the second acquisition module 1502 is used to acquire the compensation power of the power amplifier according to the RF parameters of the RF signal, the output power and the preset power compensation data set. The adjustment module 1503 is used to: acquire the target power of the power amplifier according to the output power and the compensation power; acquire the second target voltage corresponding to the target power according to the target power and the reference calibration data; and adjust the power supply voltage of the power amplifier to the second target voltage to power the power amplifier.

[0141] In one embodiment, the power calibration device also includes a third acquisition module, which is used to: obtain a first reference supply voltage of the power amplifier at the output power and a linearity parameter that satisfies a preset linear condition; obtain the compensation parameter based on the output power, the first reference supply voltage and the reference calibration data; obtain the compensation data set based on the RF parameters, the output power and the compensation parameter.

[0142] In one embodiment, the power calibration device also includes a fourth acquisition module, which is used to: increase the output power according to a preset power step when the signal strength of the RF signal is less than a preset strength threshold; obtain a second reference supply voltage of the power amplifier at the increased output power and a linearity parameter that satisfies a preset linear condition; obtain the compensation parameters according to the output power, the second reference supply voltage and the reference calibration data; obtain the compensation data set according to the RF parameters, the increased output power and the compensation parameters.

[0143] In one embodiment, the power calibration device further includes a fifth acquisition module, which is used to acquire the signal strength of the radio frequency signal output by the power amplifier. The adjustment module 1503 is used to: when the signal strength is greater than a first strength threshold, reduce the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; when the signal strength is less than a second strength threshold, increase the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; wherein the second strength threshold is greater than or equal to the first strength threshold.

[0144] Each module in the above power calibration device can be implemented in whole or in part by software, hardware and a combination thereof. Each module can be embedded in or independent of a processor in a communication device in the form of hardware, or can be stored in a memory in the communication device in the form of software, so that the processor can call and execute the operations corresponding to each module above.

[0145] In one embodiment, a communication device is provided. The communication device may be a server, and its internal structure diagram may be as follows: Fig.16 As shown. The communication device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the communication device is used to provide computing and control capabilities. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the communication device is used to store compensation data. The network interface of the communication device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a power calibration method is implemented.

[0146] Those skilled in the art will understand that Fig.16 The structure shown in the figure is only a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the communication device to which the scheme of the present application is applied. The specific communication device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0147] In one embodiment, a communication device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the steps of the power calibration method provided in any of the above embodiments are implemented.

[0148] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the power calibration method provided in any of the above embodiments are implemented.

[0149] In one embodiment, a computer program product is provided, including a computer program, which implements the steps of the power calibration method provided in any of the above embodiments when executed by a processor.

[0150] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0151] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0152] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0153] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A power calibration method, characterized in that: The method comprises: Obtaining the output power of the radio frequency signal after the power amplifier performs power amplification processing on the radio frequency signal; Acquire the compensation parameters of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset compensation data set; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, radio frequency parameters and compensation parameters of the power amplifier; The supply voltage of the power amplifier is adjusted according to the output power, the reference calibration data and the compensation parameter; wherein the reference calibration data is used to represent a mapping relationship between the output power of the power amplifier and the supply voltage.

2. The method according to claim 1, characterized in that The radio frequency parameters of the radio frequency signal include at least one of a frequency band parameter, an uplink channel parameter, a waveform parameter, a modulation parameter, a bandwidth parameter, and a resource block position parameter of the radio frequency signal.

3. The method according to claim 1, characterized in that: The compensation data set includes one of a power compensation data set and a voltage compensation data set, wherein each power compensation data in the power compensation data set is used to represent the mapping relationship between the preset output power, radio frequency parameters and compensation power of the power amplifier, and each voltage compensation data in the voltage compensation data set is used to represent the mapping relationship between the preset output power, radio frequency parameters and compensation voltage of the power amplifier.

4. The method according to claim 3, characterized in that The compensation data set includes a voltage compensation data set, and acquiring the compensation parameters of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset compensation data set includes: Acquire a compensation voltage of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and the preset voltage compensation data set; The adjusting the supply voltage of the power amplifier according to the output power, the reference calibration data and the compensation parameter comprises: Acquire a calibration voltage corresponding to the output power according to the output power and the reference calibration data; Acquire a first target voltage of the power amplifier according to the calibration voltage and the compensation voltage; The power supply voltage of the power amplifier is adjusted to the first target voltage to power the power amplifier.

5. The method according to claim 3, characterized in that: The compensation data set includes a power compensation data set, and acquiring the compensation parameters of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and a preset compensation data set includes: Acquire the compensation power of the power amplifier according to the radio frequency parameters of the radio frequency signal, the output power and the preset power compensation data set; The adjusting the supply voltage of the power amplifier according to the output power, the reference calibration data and the compensation parameter comprises: Acquire a target power of the power amplifier according to the output power and the compensation power; Acquire a second target voltage corresponding to the target power according to the target power and the reference calibration data; The power supply voltage of the power amplifier is adjusted to the second target voltage to power the power amplifier.

6. The method according to claim 1, characterized in that The preset output power range of the power amplifier includes multiple power intervals, each of the power intervals is configured with multiple sub-compensation data sets, and the compensation data in each sub-compensation data set is used to represent the mapping relationship between the power interval, the RF parameter, and the compensation parameter.

7. The method according to claim 1, characterized in that The method further comprises: Acquire a first reference supply voltage of the power amplifier at the output power and with a linearity parameter satisfying a preset linearity condition; Acquire the compensation parameter according to the output power, the first reference supply voltage and the reference calibration data; The compensation data set is acquired according to the radio frequency parameters, the output power and the compensation parameters.

8. The method according to claim 1, characterized in that The method further comprises: When the signal strength of the radio frequency signal is less than a preset strength threshold, increasing the output power according to a preset power step; Acquire a second reference supply voltage of the power amplifier at the increased output power and with a linearity parameter satisfying a preset linearity condition; Acquire the compensation parameter according to the output power, the second reference supply voltage and the reference calibration data; The compensation data set is acquired according to the radio frequency parameters, the increased output power and the compensation parameters.

9. The method according to claim 1, characterized in that: The method further comprises: Acquire the signal strength of the radio frequency signal output by the power amplifier; The adjusting the supply voltage of the power amplifier according to the output power, the reference calibration data and the compensation parameter comprises: When the signal strength is greater than a first strength threshold, reducing the supply voltage of the power amplifier according to the output power, the reference calibration data and the compensation parameter; When the signal strength is less than a second strength threshold, the supply voltage of the power amplifier is increased according to the output power, the reference calibration data and the compensation parameter; wherein the second strength threshold is greater than or equal to the first strength threshold.

10. A power calibration device, characterized in that: The device comprises: The first acquisition module is used to obtain the output power of the radio frequency signal after the power amplifier performs power amplification processing on the radio frequency signal; A second acquisition module, configured to acquire compensation parameters of the power amplifier according to the RF parameters of the RF signal, the output power and a preset compensation data set; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier; An adjustment module is used to adjust the supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameter; wherein the reference calibration data is used to represent the mapping relationship between the output power and the supply voltage of the power amplifier.

11. A radio frequency system, characterized in that: The radio frequency system comprises: A power amplifier, used to support power amplification processing of radio frequency signals; A power detection circuit, connected to the power amplifier, for detecting the output power of the power amplifier; A power supply circuit, connected to the power amplifier, for providing a power supply voltage to the power amplifier; The processing circuit is respectively connected to the power detection circuit and the power supply circuit, and is used to obtain the compensation parameters of the power amplifier according to the RF parameters of the RF signal, the output power and a preset compensation data set, and adjust the power supply voltage of the power amplifier according to the output power, reference calibration data and the compensation parameters; wherein the compensation data set includes a plurality of compensation data, each of which is used to represent a mapping relationship between the preset output power, RF parameters and compensation parameters of the power amplifier; and the reference calibration data is used to represent a mapping relationship between the output power of the power amplifier and the supply voltage.

12. A communication device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 9 are implemented.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 9 are implemented.

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