Multi-phase multi-combined power amplifier method and device

Abstract

The present application discloses a control method and device for a multi-combined power amplifier based on multiple phases, which obtains a baseband signal; generates two path vector signals according to the baseband signal, the two path vector signals respectively include a phase signal and an amplitude signal, and the two path vector signals are non-orthogonal signals; obtains an amplitude control signal of a target power amplifier according to the quantization coding of the amplitude signals of the two path vector signals, the target power amplifier includes a main power amplifier and an auxiliary power amplifier, and the main power amplifier and the auxiliary power amplifier respectively include a plurality of working units; obtains a phase control signal of the target power amplifier according to the phase signals of the two path vector signals; controls the plurality of working units of the main power amplifier and the auxiliary power amplifier to output power signals according to the phase control signal and the amplitude control signal. By this method, the problem of performance deterioration of the power amplifier under broadband modulation signals can be effectively solved.

Description

Technical Field

[0001] The present application relates to the fields of communication and electronic technologies, and particularly relates to a multi-phase based multi-combined power amplifier method and apparatus. Background Art

[0002] The modern industry inherently requires the high-fidelity transmission of massive information and data to be efficient, intelligent, and low-latency; on the other hand, in order to meet the future demand for high data rates, high-order broadband modulation signals will be adopted, which results in the long-term operation of the transmitter power amplifier in the deep back-off region (5dB - 20dB). However, the operating efficiency of traditional PAs (power amplifiers) in the deep back-off region is lower than about 10%, which makes traditional power amplifiers unable to meet the requirements of future transmitter systems.

[0003] In the past decade, digital power amplifiers have adjusted the transconductance gm by controlling the effective gate width, enabling the power of the output signal to be modulated by digital signals, overcoming the bottleneck that the output power of traditional power amplifiers is restricted by the input power, and solving the contradiction between the efficiency and linearity of power amplifiers. Among them, digital Cartesian coordinate power amplifiers, digital polar coordinate power amplifiers (including polar coordinate Doherty digital power amplifiers and polar coordinate Class-G Doherty digital power amplifiers), and multi-phase technologies have been proposed and studied, providing potential solutions for digital power amplifiers suitable for broadband high-order modulation signals. However, existing digital power amplifiers still have problems such as the deterioration of performance such as power amplifier efficiency and linearity under broadband modulation signals. Summary of the Invention

[0004] Embodiments of the present application provide a multi-phase based multi-combined power amplifier method and apparatus to solve the problem of the deterioration of performance such as power amplifier efficiency and linearity under broadband modulation signals.

[0005] In a first aspect, a multi-phase based multi-combined power amplifier method is provided, the method including:

[0006] Obtaining a baseband signal;

[0007] Generating two path vector signals according to the baseband signal, the two path vector signals respectively including a phase signal and an amplitude signal, and the two path vector signals being non-orthogonal signals;

[0008] Obtaining an amplitude control signal of a target power amplifier according to the quantization coding of the amplitude signals of the two path vector signals, the target power amplifier including a main power amplifier and a secondary power amplifier, and the main power amplifier and the secondary power amplifier respectively including a plurality of working units;

[0009] Obtaining a phase control signal of the target power amplifier according to the phase signals of the two path vector signals;

[0010] Control the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal.

[0011] In a possible design, the amplitude signals corresponding to the two-way vector signals are (ρ1, ρ2), and the amplitude control signals obtained according to the quantization coding of the amplitude signals include the amplitude control signals (ACW1, ACW2) of the main power amplifier and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier.

[0012] In a possible design, the phase signals corresponding to the two-way vector signals are (φ m , φ m+1 ), and the phase control signals obtained according to the phase signals are and where is selected from M non-orthogonal discrete phase bases according to the phase signal , M is an integer greater than 1, 1 ≤ m < M, and m is an integer.

[0013] In a possible design, the controlling the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal includes:

[0014] Control the output power signals of multiple first working units in the main power amplifier according to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier. The first working units are composed of multiple main power amplifier units;

[0015] Control the output power signals of multiple second working units in the auxiliary power amplifier according to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier. The second working units are composed of multiple auxiliary power amplifier units.

[0016] In a possible design, the multiple first working units include a first unit and a second unit. The controlling the multiple first working units in the main power amplifier according to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier includes:

[0017] Control according to the phase base signals and Control the starting positions of the switches of multiple main power amplifier units in the first unit and the second unit respectively;

[0018] Control the output power signals of multiple auxiliary power amplifier units in the first unit and the second unit respectively according to the amplitude control signals ACW1 and ACW2 of the main power amplifier.

[0019] In a possible design, the multiple second working units include a third unit and a fourth unit, and according to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier to control multiple second working units in the auxiliary power amplifier, including:

[0020] Control the starting positions of the switches of multiple auxiliary power amplifier units in the third unit and the fourth unit respectively according to the phase reference signal and ;

[0021] Control the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit respectively according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier.

[0022] In the embodiments of the present application, by dividing the main power amplifier and / or the auxiliary power amplifier in the target power amplifier into working units, and then controlling the output power of these working units respectively by the amplitude control signals obtained from the amplitude signals corresponding to two non-orthogonal vector signals, and controlling the starting positions of the switches of these working units respectively according to the phase control signals corresponding to adjacent phases obtained from the two vector signals, the control of the target power amplifier overcomes the unit sharing technology, realizes more precise and accurate power control, and improves the working efficiency of the target power amplifier.

[0023] In a possible design, when the amplitude signal is less than the first preset threshold, the control of the output power signals of multiple main power amplifier units in the first unit and the second unit respectively according to the amplitude control signals ACW1 and ACW2 of the main power amplifier includes:

[0024] Control multiple main power amplifier units in the first unit and the second unit to work at a first power, the first power is less than a second power, and the second power is the highest power in the low voltage mode;

[0025] The control of the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit respectively according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier includes:

[0026] Control to turn off multiple auxiliary power amplifier units in the third unit and the fourth unit.

[0027] In a possible design, when the amplitude signal is less than the second preset threshold and not less than the first preset threshold, the output power signals of multiple main power amplifier units in the first unit and the second unit are respectively controlled according to the amplitude control signals ACW1 and ACW2 of the main power amplifier, including:

[0028] Controlling multiple main power amplifier units in the first unit and the second unit to operate at the second power;

[0029] The output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit are respectively controlled according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier, including:

[0030] Controlling multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the first power.

[0031] In a possible design, when the amplitude signal is less than the third preset threshold and not less than the second preset threshold, the output power signals of multiple main power amplifier units in the first unit and the second unit are respectively controlled according to the amplitude control signals ACW1 and ACW2 of the main power amplifier, including:

[0032] Controlling multiple main power amplifier units in the first unit and the second unit to operate at a third power, where the third power is greater than the second power and less than the fourth power, and the fourth power is the highest power in the high-voltage mode;

[0033] The output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit are respectively controlled according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier, including:

[0034] Controlling multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the second power.

[0035] In a possible design, when the amplitude signal is not less than the fourth preset threshold, the output power signals of multiple main power amplifier units in the first unit and the second unit are respectively controlled according to the amplitude control signals ACW1 and ACW2 of the main power amplifier, including:

[0036] Controlling multiple main power amplifier units in the first unit and the second unit to operate at the fourth power;

[0037] The output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit are respectively controlled according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier, including:

[0038] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the third power.

[0039] In a possible design, at least one set of the amplitude control signals (ACW1, ACW2) and (ACW3, ACW4) is a different control signal.

[0040] In the embodiments of the present application, through the Class-G technology combined with the multi-phase Doherty PA, more precise and differential control can be performed on the main power amplifier and the auxiliary power amplifier, so that the power amplifier can output at least four different powers to adapt to different input powers, effectively improving the amplification efficiency of the power amplifier.

[0041] In a possible design, after generating two vector signals according to the baseband signal, the method further includes:

[0042] Perform non-linear compensation on the two vector signals to obtain an updated phase signal and an updated amplitude signal. The updated phase signal is used to obtain the phase control signal of the target power amplifier; the updated amplitude signal is used for quantization coding to obtain the amplitude control signal of the target power amplifier.

[0043] In the embodiments of the present application, power amplification is performed through the Class-G multi-phase Doherty PA. On the one hand, the multi-phase technology can be used to separately control multiple working units in the main power amplifier and the auxiliary power amplifier, which can improve the accuracy and differentiation of control. Combined with the Class-G technology, the differentiation of control can be further improved, solving the problem of low amplification efficiency that may be caused by the unit sharing technology, and improving the working efficiency of the target power amplifier.

[0044] Second, an electronic device is provided. The device includes a signal processing module and an amplification module that are connected to each other, where:

[0045] The signal processing module is used to obtain a baseband signal; generate two vector signals according to the baseband signal. The two vector signals respectively include a phase signal and an amplitude signal, and the two vector signals are non-orthogonal signals;

[0046] The signal processing module is further used to obtain the amplitude control signal of the target power amplifier according to the quantization coding of the amplitude signals of the two vector signals, and obtain the phase control signal of the target power amplifier according to the phase signals of the two vector signals; the target power amplifier includes a main power amplifier and an auxiliary power amplifier, and the main power amplifier and the auxiliary power amplifier respectively include multiple working units;

[0047] The amplification module is configured to control the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal.

[0048] In a possible design, the amplitude signals corresponding to the two-way vector signals are (ρ1, ρ2), and the amplitude control signals obtained according to the quantization coding of the amplitude signals include the amplitude control signals (ACW1, ACW2) of the main power amplifier and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier.

[0049] In a possible design, the phase signals corresponding to the two-way vector signals are (φ m , φ m+1 ), and the phase control signals obtained according to the phase signals are and The apparatus further includes a phase module respectively connected to the signal processing module and the amplification module, configured to select a phase from M non-orthogonal discrete phase bases according to the phase signal select a phase M is an integer greater than 1, 1 ≤ m < M, and m is an integer.

[0050] In a possible design, the amplification module is specifically configured to:

[0051] Control multiple first working units in the main power amplifier to output power signals according to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier, where the first working unit is composed of multiple main power amplifier units;

[0052] Control multiple second working units in the auxiliary power amplifier to output power signals according to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier, where the second working unit is composed of multiple auxiliary power amplifier units.

[0053] In a possible design, the multiple first working units include a first unit and a second unit, and the amplification module is specifically configured to:

[0054] Control the starting positions of switches of multiple main power amplifier units in the first unit and the second unit respectively according to phase basis signals and ;

[0055] Control the output power signals of multiple auxiliary power amplifier units in the first unit and the second unit respectively according to the amplitude control signals ACW1 and ACW2 of the main power amplifier.

[0056] In a possible design, the multiple second working units include a third unit and a fourth unit, and the amplification module is specifically configured to:

[0057] According to the phase base signal and respectively control the starting positions of switches of multiple auxiliary power amplifier units in the third unit and the fourth unit;

[0058] According to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier, respectively control the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit.

[0059] In a possible design, when the amplitude signal is less than the first preset threshold, the amplification module is specifically configured to:

[0060] Control multiple main power amplifier units in the first unit and the second unit to work at a first power, where the first power is less than a second power, and the second power is the highest power in the low voltage mode;

[0061] Control to turn off multiple auxiliary power amplifier units in the third unit and the fourth unit.

[0062] In a possible design, when the amplitude signal is less than the second preset threshold and not less than the first preset threshold, the amplification module is specifically configured to:

[0063] Control multiple main power amplifier units in the first unit and the second unit to work at the second power;

[0064] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to work at the first power.

[0065] In a possible design, when the amplitude signal is less than the third preset threshold and not less than the second preset threshold, the amplification module is specifically configured to:

[0066] Control multiple main power amplifier units in the first unit and the second unit to work at a third power, where the third power is greater than the second power and less than a fourth power, and the fourth power is the highest power in the high voltage mode;

[0067] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to work at the second power.

[0068] In a possible design, when the amplitude signal is not less than the fourth preset threshold, the amplification module is specifically configured to:

[0069] Control multiple main power amplifier units in the first unit and the second unit to work at the fourth power;

[0070] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the third power.

[0071] In a possible design, at least one set of the amplitude control signals (ACW1, ACW2) and (ACW3, ACW4) are different control signals.

[0072] In a possible design, the signal processing module further includes a mapping module for:

[0073] Perform non-linear compensation on the two-way vector signals to obtain updated phase signals and updated amplitude signals, where the updated phase signals are used to obtain the phase control signals of the target power amplifier; the updated amplitude signals are used to perform quantization encoding to obtain the amplitude control signals of the target power amplifier.

[0074] In a third aspect, an electronic device is provided, the device includes at least one processor, and the at least one processor is coupled to at least one memory:

[0075] The at least one processor is configured to execute computer programs or instructions stored in the at least one memory, so that the device executes the method according to any one of the first aspect.

[0076] The device can be a terminal or a chip included in the terminal. The functions of the above electronic device can be implemented by hardware or by hardware executing corresponding software, and the hardware or software includes one or more modules corresponding to the above functions.

[0077] In a fourth aspect, an embodiment of the present application provides a chip system, including: a processor, the processor is coupled to a memory, and the memory is used to store programs or instructions. When the programs or instructions are executed by the processor, the chip system implements the method in the above first aspect or any possible implementation manner of the first aspect.

[0078] Optionally, the chip system further includes an interface circuit for interacting code instructions to the processor.

[0079] Optionally, the processor in the chip system can be one or more, and the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor, which is implemented by reading software code stored in the memory.

[0080] Optionally, there may also be one or more memories in the chip system. The memory may be integrated with the processor or may be separately provided from the processor, which is not limited in this application. Exemplarily, the memory may be a non-transitory processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip or may be separately provided on different chips. This application does not specifically limit the type of the memory and the setting manner of the memory and the processor.

[0081] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program or instruction is stored. When the computer program or instruction is executed, the computer is caused to execute the method in the first aspect or any possible implementation manner of the first aspect above.

[0082] In a sixth aspect, an embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the computer is caused to execute the method in the first aspect or any possible implementation manner of the first aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments.

[0084] Figure 1 FIG. is a block diagram of a digital rectangular coordinate power amplifier system provided by an embodiment of the present application;

[0085] Figure 2 FIG. is a block diagram of a polar coordinate power amplifier system provided by an embodiment of the present application;

[0086] Figure 3A FIG. is a flowchart of a multi-phase multi-combined power amplifier control method provided by an embodiment of the present application;

[0087] Figure 3B FIG. is a schematic diagram of a multi-phase digital power amplifier provided by an embodiment of the present application;

[0088] Figure 3C FIG. is a schematic diagram of a multi-phase multi-combined power amplifier provided by an embodiment of the present application;

[0089] Figure 4 FIG. is a block diagram of the structure of an electronic device provided by an embodiment of the present application;

[0090] Figure 5 FIG. is a block diagram of the signal processing module structure of an electronic device provided by an embodiment of the present application;

[0091] Figure 6 FIG. shows a schematic diagram of the hardware structure of an electronic device in an embodiment of the present application. Specific embodiments

[0092] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0093] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, satellite communications, space communications, 5th generation (5G) mobile communication systems or new radio access technologies (NR), or future communication systems, such as the next-generation communication technology 6G.

[0094] To facilitate the understanding of the embodiments of the present application, first, in combination with Figure 1 and Figure 2 a digital power amplifier will be introduced.

[0095] In order to achieve the digitization and integration of the radio frequency front end, the digital Cartesian power amplifier was first proposed. Please refer to Figure 1 , Figure 1 which is a system block diagram of a digital Cartesian power amplifier provided by the embodiments of the present application. As shown in Figure 1 , the baseband signal is represented by an in-phase signal (I-channel signal) and its corresponding quadrature signal (Q-channel signal). The I BB / Q BB through a rate converter to increase the signal frequency to the intermediate frequency signal I BBUP / Q BBUP , and the intermediate frequency signal I BBUP / Q BBUPThe local oscillator signal and the input are respectively fed into a Radio Frequency Digital Analog Converter (RF-DAC) unit, and finally power combination is fed into the antenna. The digital rectangular coordinate power amplifier is naturally adapted to broadband modulation signals, and there is no signal alignment problem caused by bandwidth expansion. However, the I-channel and Q-channel signals are combined into a radio frequency vector signal, which will have an inherent 3dB loss, reducing the output power and efficiency. This problem is more obvious in the back-off region.

[0096] The emergence of the digital polar coordinate power amplifier perfectly solves the above problems. Please refer to Figure 2 , Figure 2 which is a block diagram of a polar coordinate power amplifier system provided by an embodiment of the present application. As shown in Figure 2 , the digital baseband signal I BB / Q BB is converted into an envelope signal ρ and a phase signal θ by using a coordinate converter. The envelope signal ρ is quantized into an amplitude control word, and the phase signal modulates the local oscillator signal to a phase modulator, and is respectively input to the RF-DAC unit to generate a radio frequency vector signal with a certain power. This avoids the inherent 3dB loss of the saturation power during vector synthesis in the rectangular coordinate architecture. However, the coordinate converter of the polar coordinate architecture generates serious bandwidth expansion, which makes the phase signal of the broadband modulation signal require an off-chip phase modulator with a very wide bandwidth; at the same time, in the RF-DAC unit, it is difficult to align the broadband modulation phase signal with the amplitude signal.

[0097] According to the above description, high-order broadband modulation signals cause the power amplifier in the transmitter to work in the deep back-off region (5dB - 20dB) for a long time. However, the working efficiency of traditional power amplifiers in the deep back-off region is only about 5% - 10%. To solve the problems of large power dissipation and low efficiency in the back-off region of the multi-phase digital power amplifier, please refer to Figure 3A , Figure 3A which is a flowchart of a control method for a multi-phase multi-combined power amplifier provided by an embodiment of the present application. As shown in Figure 3A , the method includes the following steps:

[0098] 101. Obtain a baseband signal, and generate two vector signals according to the baseband signal. The two vector signals respectively include a phase signal and an amplitude signal, and the two vector signals are non-orthogonal signals;

[0099] 102. Obtain an amplitude control signal of a target power amplifier according to the quantization coding of the amplitude signals of the two vector signals. The target power amplifier includes a main power amplifier and a secondary power amplifier, and the main power amplifier and the secondary power amplifier respectively include a plurality of working units;

[0100] 103. Obtain the phase control signal of the target power amplifier according to the phase signals of the two-way vector signals;

[0101] 104. Control the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal. The power signal mentioned here refers to the signal transmitted with the power amplified by the power amplifier, which will not be elaborated below.

[0102] The original electrical signal emitted by the signal source (information source, also known as the transmitting end) without modulation (performing spectrum shifting and transformation) is the baseband signal, which is characterized by a relatively low frequency. The signal spectrum starts from near zero frequency and has a low-pass form.

[0103] The baseband signal can be represented by I and Q signals with a 90° (orthogonal) phase difference, or can also be represented by polar coordinates ρ and θ. Using the baseband signal for real-time signal decomposition and synthesis, two non-orthogonal multi-phase vector signals are generated, and their corresponding phases are (φ m , φ m+1 ), and the corresponding amplitudes are (ρ1, ρ2). Among them, if the baseband signal is I and Q signals, the rectangular coordinate to multi-phase vector signal conversion algorithm is used for conversion; if the baseband signal is ρ and θ signals, the polar coordinate to multi-phase vector signal conversion algorithm is used for conversion.

[0104] Please refer to Figure 3B , Figure 3B which is a schematic diagram of a multi-phase digital power amplifier provided by an embodiment of the present application. As Figure 3B shown, the digital baseband signal is decomposed by vector decomposition to obtain two groups of signals of (ρ1, φ m ) and (ρ2, φ m+1 ). The working state of the power amplifier is controlled by (ρ1, φ m ) and (ρ2, φ m+1 ), and after passing through the matching network and the power combining network, it is input to the load. Among them, φ m and φ m+1 are adjacent phase base signals. Therefore, the phase modulation is converted into the selection of adjacent-phase co-frequency multi-phase signals (digital phase modulation). The multi-phase technology overcomes the broadband limitation problem of the polar coordinate architecture and the 3dB loss of the vector synthesis saturation power of the rectangular coordinate architecture by combining the polar coordinate technology and the out-of-phase technology, and becomes a favorable competitor in the digital power amplifier scheme. However, limited by the unit sharing technology, the peak output power and peak efficiency of this digital power amplifier are relatively low, and moreover, the efficiency at 6dB back-off is only about 15%, and there is still a large room for improvement.

[0105] In addition, in the prior art, power amplifiers generally operate in the back-off region of 5 dB - 20 dB. To improve the back-off efficiency of digital power amplifiers, the Doherty technique has been proposed to solve the problem of power back-off. That is, in a power amplifier, it includes both a main power amplifier (main PA) and an auxiliary power amplifier (auxiliary PA), or is also referred to as a carrier power amplifier (carrier PA) and a peak power amplifier (peak PA). The main PA can be a power amplifier biased in class AB, which operates alone when a small-power signal is input and operates together with the auxiliary PA when a large-power signal is input. The auxiliary PA can be a power amplifier biased in class B or C, which does not operate when a small-power signal is input and operates when a large-power signal is input.

[0106] The polar coordinate Doherty improves the efficiency within the 6 dB back-off region of the digital power amplifier. However, limited by problems such as poor broadband adaptability of the transmitter structure, it still cannot solve the current situation of low efficiency of the power amplifier under the action of broadband high-order modulation signals.

[0107] Based on this, an embodiment of the present application provides a target digital power amplifier, which includes a main PA and an auxiliary PA, and at least one of the auxiliary PA and the main PA includes two or more working units. For example, the main PA includes two working units and the auxiliary PA includes one working unit; or the main PA includes one working unit and the auxiliary PA includes two working units; or the main PA includes two working units and the auxiliary PA includes two working units. A working unit (cell) can be a set of the smallest PA units. For example, one working unit in the main PA includes 10 main PA units, each of which is used for carrier power amplification, and each main PA unit can have an independent power supply switch and power supply voltage control, or multiple main PA units can correspond to a common power supply switch and power supply voltage control. Other components such as capacitors and resistors can also be included in the working unit.

[0108] For details, please refer to Figure 3C , Figure 3C which is a schematic diagram of a multi-phase Doherty power amplifier provided by an embodiment of the present application. As shown in Figure 3C , the baseband signal, including I and Q signals, or polar coordinate signals, is processed to generate two non-orthogonal multi-phase vector signals (ρ1, φ m ) and (ρ2, φ m+1), wherein the amplitude control word can be obtained by quantization coding according to the amplitude signals (ρ1, ρ2). For example, the amplitude control word (ACW1, ACW2) is obtained according to ρ1, and the amplitude control word (ACW3, ACW4) is obtained according to ρ2. The carrier power amplifier (main power amplifier) includes two working units, namely the first unit cell0 and the second unit cell1, and the peak power amplifier (auxiliary power amplifier) includes two working units, namely the third unit cell2 and the fourth unit cell3. Among them, ACW1 and ACW2 are used to control the output power of cell0 and cell1, and ACW3 and ACW4 are used to control the output power of cell2 and cell3.

[0109] The amplitude control word can be a set of encoded information. Taking ACW1 as an example, assume that ACW1 includes 8 bits. Among them, the lowest three bits, that is, the first, second, and third bits of ACW1<2:0>, directly control the switching on state (on or off) of the least significant bit (LSB) main power amplifier unit in cell0, corresponding to different output powers. ACW1<7:6> and ACW1<5:3> jointly control the switching state of the most significant bit (MSB) main power amplifier unit in cell0, corresponding to different output powers; and the LSB can correspond to at most 2 3 = 8 on states, and the MSB can correspond to at most 2 5 = 32 on states. For example, cell0 includes 8 LSB main power amplifier units and 32 MSB main power amplifier units. The correspondence between the value of ACW1<2:0> and the LSB switching state is shown in Table 1-1:

[0110] Table 1-1

[0111] Value of ACW1<2:0> LSB Switch State 000 10,000,000 001 01,000,000 010 00,100,000 011 00,010,000 100 00,001,000 101 00,000,100 110 00,000,010 111 00,000,001

[0112] Figure 3CThe multi-phase multi-combined power amplifier (PA) shown can preset the correspondence between the lower three bits of ACW1 and the LSB switch states in cell0, and then determine the output power of the LSB according to the obtained value of ACW1. The LSB switch states are distinguished according to whether the bit values in Table 1-1 are "0" or "1". Suppose ACW1<2:0> = (001), and the LBS main power amplifier unit switch state is (01,000,000), which means the second LSB main power amplifier unit in cell0 is turned on and other LSB main power amplifier units are turned off, and the power amplifier outputs according to the corresponding power. Or (01,000,000) can also mean that the second LSB main power amplifier unit in cell0 is turned off and other LSB main power amplifier units are turned on. The second LSB main power amplifier unit can be determined according to the unit identifier or number, or according to the unit arrangement order in cell0, etc.

[0113] Optionally, the correspondence between the value of ACW1<2:0> and the LSB switch states is shown in Table 1-2:

[0114] Table 1-2

[0115] The value of ACW1<2:0> LSB Switch State 000 00,000,000 001 01,001,000 010 00,101,100 011 00,110,110 100 10,111,001 101 11,100,111 110 11,111,110 111 11,111,111

[0116] According to Table 1-2, suppose ACW1<2:0> = (001), and the LBS main power amplifier switch state is (01,001,000), which means any two LSB main power amplifier units in cell0 are turned on and other LSB main power amplifier units are turned off, and the power amplifier outputs according to the corresponding power. Or it can also mean that any two LSB main power amplifier units in cell0 are turned off and other LSB main power amplifier units are turned on. Similarly, ACW1<2:0> = (000) means all LSB main power amplifier units are turned on or off, and ACW1<2:0> = (111) means all LSB main power amplifier units are turned off or on.

[0117] Similarly, the correspondence between the values of the remaining bits of ACW1 and the MSB on states in cell0 can also be set, and then the output power of the MSB can be determined according to the obtained value of ACW1. ACW2, ACW3, and ACW4 can also determine the output powers of cell1, cell2, and cell3 in the same way.

[0118] In addition, as Figure 3C shown, the phase signals corresponding to the two-way vector signals are (φ m , φ m+1 ), and according to the quantization coding of these two phase signals, phase control words (PCW1, PCW2) are obtained. The local oscillator signal can be modulated to obtain M non-orthogonal discrete phase bases According to the phase control words (PCW1, PCW2), adjacent phases can be obtained from M non-orthogonal discrete phase bases where M is an integer greater than 1, 1 ≤ m < M, and m is an integer. The phase spacing between every two adjacent phases is 2π / M. Alternatively, the M non-orthogonal discrete phase bases may not be equally divided. Equal division of the spacing is easier to implement, while unequal division of the spacing is more flexible, and each has its advantages, which are not limited in the embodiments of the present application.

[0119] Select adjacent phases After that, a phase control signal is generated and where is used to control the starting positions of the switches of multiple main power amplifier units in cell0 and the starting positions of the switches of multiple auxiliary power amplifier units in cell2, is used to control the starting positions of the switches of multiple main power amplifier units in cell1 and the starting positions of the switches of multiple auxiliary power amplifier units in cell3. For example, the phase control signal indicates that the starting position of the switch in the controlled power amplifier unit is advanced by

[0120] Optionally, the two non-orthogonal vector signals have non-linear characteristics. Therefore, according to the non-linear mapping table, the phase signals (φ m , φ m+1 ) and amplitude signals (ρ1, ρ2) of the two generated signals can be non-linearly compensated respectively to obtain updated phase signals, and the updated phase signals and amplitude signals are used for quantization coding to obtain corresponding amplitude control words and phase control signals for controlling the main power amplifier and the auxiliary power amplifier.

[0121] It can be seen that in the embodiments of the present application, by dividing the working units for the main power amplifier and / or the auxiliary power amplifier in the target power amplifier, and then using the amplitude control signals obtained from the amplitude signals corresponding to the two non-orthogonal vector signals to control the output power of these working units respectively, and using the phase control signals corresponding to the adjacent phases obtained from the two vector signals to control the starting positions of the switches of these working units respectively, the control of the target power amplifier overcomes the unit sharing technology, realizes more refined and accurate power control, and improves the working efficiency of the target power amplifier.

[0122] In addition, at least one of (ACW1, ACW2) and (ACW3, ACW4) in the above description is a different control signal, that is, at least one of ACW1≠ACW2 and ACW3≠ACW4 holds. If ACW1 = ACW2 and ACW3 = ACW4, it indicates that the amplitude control words corresponding to cell0 and cell1 are the same, and the amplitude control words corresponding to cell2 and cell3 are the same. The control results for the main power amplifier units in cell0 and cell1 are the same, and the control results for the auxiliary power amplifier units in cell2 and cell3 are the same. This is equivalent to not performing cell division on the main power amplifier and the auxiliary power amplifier, and it cannot solve the problem of low operating power of the amplifier caused by the unit sharing technology.

[0123] In addition, the digital power amplifier introduces 1-bit (bit) amplitude modulation technology combined with the multi-combiner technology. Among them, the 1-bit amplitude modulation technology corresponds to a Class-G power amplifier, or it can also be other types of power amplifiers. The efficiency enhancement range of the back-off area is expanded through power supply modulation technology and active load pulling technology. When the power back-off is 0 - 6 dB, both the main power amplifier and the auxiliary power amplifier are powered by Vdd, forming a Vdd-mode Doherty. When the power back-off is 6 - 12 dB, both the main power amplifier and the auxiliary power amplifier are powered by Vdd / 2, forming a Vdd / 2-mode Doherty. However, precisely because the supply voltage switches simultaneously at a 6 dB back-off, very large positive / negative spike pulses are generated, which greatly deteriorates the linearity of the broadband modulation signal. On the other hand, limited by the performance deterioration brought about by the bandwidth expansion of the Polar architecture, the Polar Class-G Doherty digital power amplifier cannot achieve high performance under broadband modulation signals.

[0124] In the embodiment of the present application, the 1-bit amplitude modulation technology is combined with Figure 3C the multi-phase multi-combiner PA shown therein. Among them, taking the Class-G power amplifier as an example for the 1-bit amplitude modulation technology, a Class-G multi-phase Doherty PA is formed. The carrier power amplifier and the peak power amplifier each include multiple working units, and each working unit of the carrier power amplifier includes multiple main power amplifier units, and each working unit of the peak power amplifier includes multiple auxiliary power amplifier units. The amplitude control signals (ACW1, ACW2) and (ACW3, ACW4) obtained from the two-way vector signals may also include fields for controlling the working modes of the main power amplifier units or the auxiliary power amplifier units in the multiple working units, where the working mode includes the working mode of Class-G.

[0125] The amplitude signals corresponding to the two-way vector signals are ρ1 and ρ2. According to ρ1, amplitude control words (ACW1, ACW2) are obtained through quantization coding, and according to ρ2, amplitude control words (ACW3, ACW4) are obtained. The magnitude of ρ1 can be used to control the output power of the main power amplifier, and the magnitude of ρ2 can be used to control the output power of the auxiliary power amplifier. Moreover, the amplitude signal is in a proportional relationship with the output power. The larger the amplitude signal value, the greater the output power.

[0126] When the multi-phase Doherty PA supports the Class-G operating mode, the magnitude of the amplitude signal also determines the operating modes of the main power amplifier and the auxiliary power amplifier. The corresponding relationship between the operating mode, output power, and amplitude value can be shown in Table 2 as follows:

[0127] Table 2

[0128]

[0129] The "=" in the above table can be combined with "<" or ">". That is, "≤" can be mutually replaced with "<", and "greater than" can be replaced with "≥".

[0130] When the amplitude signal is between the first preset threshold and the second preset threshold, because the amplitude signal value is small, only some of the main power amplifier units in cell0 and cell1 work in the low-voltage mode, and the auxiliary power amplifier units in cell2 and cell3 are in the off state. When the amplitude signal is between the first preset threshold and the second preset threshold, all the main power amplifier units in cell0 and cell1 work in the low-voltage mode, and the corresponding second output power is the maximum power in the low-voltage mode. The auxiliary power amplifier units in cell1 and cell2 work in a partial low-voltage mode. When the amplitude signal is greater than the fourth preset threshold, because the amplitude signal value is large, the first unit and the second unit all work in the high-voltage mode, and the corresponding fourth output power is the maximum output power in the high-voltage mode. Taking the amplitude control signal ACW1 of cell0 as an example, assuming ACW1 includes 10 bits, where the lower 8 bits are used to indicate the on state of the main power amplifier units in cell0, and the upper 2 bits are used to indicate the operating mode of the main power amplifier units in cell0. The corresponding relationship between the value of ACW1<9:8> and the operating mode can be shown in Table 3 as follows:

[0131] Table 3

[0132] Value of ACW1<9:8> Operating Mode 00 Partial Low-Voltage Operating Mode and Partial Shutdown Mode 01 Low-Voltage Full-On Mode 10 Partial Low-Voltage Operating Mode and Partial High-Voltage Operating Mode 11 High-Voltage Full-On Mode

[0133] Assume ACW1 = 00XXXXX110, where the lower three bits of the amplitude control word corresponding to LBS is 110, indicating that the switch states of the 8 LBS main power amplifier units are (00, 000, 010), and ACW1<9:8> = 00, indicating that the main power amplifier unit in the first unit is in a partial low-voltage operating mode and a partial shutdown mode. Then, for the 8 LBSs in cell0 in Table 1-1, it can be the LBS with the switch state identification field of 1, that is, the seventh main power amplifier unit operates in the low-voltage mode and the other seven main power amplifier units are shut down; or it can also be that the seventh main power amplifier unit is shut down and the other seven main power amplifier units operate in the low-voltage mode.

[0134] The main power amplifier and the auxiliary power amplifier each include two working units. Without using the Class-G technology, the corresponding relationship between the working modes of each working unit of the main power amplifier and each working unit of the auxiliary power amplifier is shown in Table 4-1:

[0135] Table 4-1

[0136] Main Power Amplifier Working Unit - Operating Mode Auxiliary Power Amplifier Working Unit - Operating Mode Full-On Partial-On Partial-On Full-Off

[0137] Similar to Table 3, the working modes of the main power amplifier working unit and the auxiliary power amplifier working unit in Table 4-1 can also be indicated in the form of an index. For example, 1 bit in the amplitude control word can be used to represent the working mode of the working unit. For the main power amplifier working unit 1, it represents the full-on mode, 0 represents the partial-on mode, and the default represents the full-off mode. For the auxiliary power amplifier 1, 1 represents the partial-on mode, 0 represents the full-off mode, and the default represents the full-on mode, and so on. The main and auxiliary power amplifiers can be jointly represented by 1 bit or each represented by 1 bit separately.

[0138] According to the above description, through the Class-G technology combined with the multi-phase Doherty PA, the multi-channel signal control power amplifier unit performs power amplification in different working modes. The corresponding relationship between the working modes of each working unit of the main power amplifier and each working unit of the auxiliary power amplifier is shown in Table 4-2:

[0139] Table 4-2

[0140] Main Power Amplifier Working Unit - Operating Mode Auxiliary Power Amplifier Working Unit - Operating Mode Partial Low-Voltage Operating Mode and Partial Shutdown Mode Full-Off Low-Voltage Full-On Mode Partial Low-Voltage Operating Mode and Partial Shutdown Mode Partial Low-Voltage Operating Mode and Partial High-Voltage Operating Mode Low-Voltage Full-On Mode High-Voltage Full-On Mode Partial Low-Voltage Operating Mode and Partial High-Voltage Operating Mode

[0141] Similar to Table 3, the operating modes of the main power amplifier working unit and the auxiliary power amplifier working unit in Table 4-2 can also be indicated in the form of indexes. For example, 2 bits in the amplitude control word can be used to represent the operating mode of the main power amplifier working unit. 00 represents the partial low-voltage operating mode and the partial shutdown mode, 01 represents the low-voltage full-on mode, 10 represents the partial low-voltage operating mode and the partial high-voltage operating mode, 11 represents the high-voltage full-on mode. For the operating mode of the auxiliary power amplifier working unit, 00 represents the full shutdown mode, 01 represents the partial low-voltage operating mode and the partial shutdown mode, 10 represents the low-voltage full-on mode, 11 represents the partial low-voltage operating mode and the partial high-voltage operating mode, and so on. The main and auxiliary power amplifiers can be jointly represented by 2 bits, or each can be represented separately by 2 bits.

[0142] It can be seen that through the Class-G technology combined with the multi-phase Doherty PA, more precise and differentiated control of the main power amplifier and the auxiliary power amplifier can be achieved, enabling the power amplifier to output at least four different powers to adapt to different input powers and effectively improving the amplification efficiency of the power amplifier.

[0143] In the embodiments of the present application, power amplification is performed through the Class-G multi-phase Doherty PA. On the one hand, the multi-phase technology can be used to separately control multiple working units in the main power amplifier and the auxiliary power amplifier, which can improve the accuracy and differentiation of control. Combined with the Class-G technology, the differentiation of control can be further improved, solving the problem of low amplification efficiency that may be caused by the unit sharing technology and improving the working efficiency of the target power amplifier.

[0144] Figure 4 An electronic device 400 provided in the embodiments of the present application can be used to execute the method performed by the power amplifier in the corresponding Figures 3A to 3C embodiment. The electronic device can be a terminal device or a chip that can be configured in a terminal device. The terminal device includes a signal processing module 401 and an amplification module 402.

[0145] The signal processing module 401 is configured to obtain a baseband signal; generate two vector signals according to the baseband signal, the two vector signals respectively include a phase signal and an amplitude signal, and the two vector signals are non-orthogonal signals;

[0146] The signal processing module 401 is further configured to obtain an amplitude control signal of the target power amplifier according to the quantization coding of the amplitude signals of the two vector signals, and obtain a phase control signal of the target power amplifier according to the phase signals of the two vector signals; the target power amplifier includes a main power amplifier and an auxiliary power amplifier, and the main power amplifier and the auxiliary power amplifier respectively include multiple working units;

[0147] The amplification module 402 is configured to control multiple working units of the main power amplifier and the auxiliary power amplifier to output power signals according to the phase control signal and the amplitude control signal.

[0148] Optionally, the amplification module 402 is specifically configured to: according to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier, control multiple first working units in the main power amplifier to output power signals, where the first working units are composed of multiple main power amplifier units;

[0149] According to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier, control multiple second working units in the auxiliary power amplifier to output power signals, where the second working units are composed of multiple auxiliary power amplifier units.

[0150] Optionally, the multiple first working units include a first unit and a second unit, and the amplification module 402 is specifically configured to:

[0151] According to the phase reference signal and respectively control the starting positions of switches of multiple main power amplifier units in the first unit and the second unit;

[0152] According to the amplitude control signals ACW1 and ACW2 of the main power amplifier, respectively control the output power signals of multiple auxiliary power amplifier units in the first unit and the second unit.

[0153] Optionally, the multiple second working units include a third unit and a fourth unit, and the amplification module 402 is specifically configured to:

[0154] According to the phase reference signal and respectively control the starting positions of switches of multiple auxiliary power amplifier units in the third unit and the fourth unit;

[0155] According to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier, respectively control the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit.

[0156] When the amplitude signal is less than a first preset threshold, the amplification module 402 is specifically configured to:

[0157] Control multiple main power amplifier units in the first unit and the second unit to operate at a first power, where the first power is less than a second power, and the second power is the highest power in the low voltage mode;

[0158] Control to turn off multiple auxiliary power amplifier units in the third unit and the fourth unit.

[0159] Optionally, when the amplitude signal is less than a second preset threshold and not less than a first preset threshold, the amplification module 402 is specifically configured to:

[0160] Control multiple main power amplifier units in the first unit and the second unit to operate at the second power;

[0161] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the first power.

[0162] Optionally, when the amplitude signal is less than a third preset threshold and not less than the second preset threshold, the amplification module 402 is specifically configured to:

[0163] Control multiple main power amplifier units in the first unit and the second unit to operate at a third power, where the third power is greater than the second power and less than a fourth power, and the fourth power is the highest power in the high-voltage mode;

[0164] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the second power.

[0165] Optionally, when the amplitude signal is not less than a fourth preset threshold, the amplification module 402 is specifically configured to:

[0166] Control multiple main power amplifier units in the first unit and the second unit to operate at the fourth power;

[0167] Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the third power.

[0168] Optionally, please refer to Figure 5 , Figure 5 which is a structural block diagram of a signal processing module provided by an embodiment of the present application. As Figure 5 shown, the signal processing module 401 further includes a mapping module 4011, which is used for:

[0169] Perform non-linear compensation on the two-way vector signals to obtain an updated phase signal and an updated amplitude signal. The updated phase signal is used to obtain a phase control signal for the target power amplifier; the updated amplitude signal is used for quantization coding to obtain an amplitude control signal for the target power amplifier.

[0170] Optionally, the signal processing module 401 further includes a conversion module 4012 and an encoding module 4013. The conversion module 4012 is configured to obtain a baseband signal and generate two vector signals according to the baseband signal. The encoding module 4013 is configured to obtain an amplitude control signal of the target power amplifier according to the quantization encoding of the amplitude signals of the two vector signals, and obtain a phase control signal of the target power amplifier according to the phase signals of the two vector signals.

[0171] Optionally, the foregoing signal processing module 401 and amplification module 402 may be chips, encoders, encoding circuits, or other integrated circuits that can implement the method of this application.

[0172] Optionally, the apparatus 400 may further include a storage module (not shown in the figure). The storage module may be configured to store data and / or signaling, and the storage module may be coupled to the signal processing module 401 and the amplification module 402. For example, the signal processing module 401 or the amplification module 402 may be configured to read the data and / or signaling in the storage module, so that the control method in the foregoing method embodiments is executed.

[0173] As Figure 6 shown, Figure 6 FIG. shows a schematic hardware structure diagram of an electronic device in an embodiment of this application. The structure of the power amplifier may refer to the structure shown in Figure 6 FIG. The electronic device 500 includes a processor 111 and a memory 113, and the processor 111 and the memory 113 are electrically coupled.

[0174] The processor 111 is configured to execute some or all of the computer program instructions in the memory. When the some or all of the computer program instructions are executed, the apparatus is caused to execute the method described in any of the foregoing embodiments.

[0175] Optionally, it further includes a memory 113 for storing computer program instructions. Optionally, the memory 113 (Memory#1) is located inside the apparatus, the memory 113 (Memory#2) is integrated with the processor 111, or the memory 113 (Memory#3) is located outside the apparatus.

[0176] Optionally, the apparatus 500 further includes a transceiver 112 for communicating with other devices.

[0177] It should be understood that Figure 6The electronic device 500 shown may be a chip or a circuit. For example, a chip or a circuit that can be disposed in a terminal device or an electronic device. The transceiver 112 may also be a communication interface. The transceiver includes a receiver and a transmitter. Further, the electronic device 500 may further include a bus system.

[0178] Among them, the processor 111, the memory 113, and the transceiver 112 are connected through the bus system. The processor 111 is configured to execute the instructions stored in the memory 113 to control the transceiver to receive signals and transmit signals, and complete the steps of the first device or the second device in the implementation method involved in this application. The memory 113 may be integrated in the processor 111 or may be separately provided from the processor 111.

[0179] As an implementation manner, the function of the transceiver 112 may be considered to be implemented by a transceiver circuit or a dedicated transceiver chip. The processor 111 may be considered to be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip. The processor may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. The processor may further include a hardware chip or other general-purpose processors. The above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), and other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., or any combination thereof. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0180] It should also be understood that the memory mentioned in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory described in the present application is intended to include, but is not limited to, these and any other suitable types of memory.

[0181] The embodiments of the present application provide a computer storage medium storing a computer program, and the computer program includes a method for executing the above-mentioned embodiments applied to a power amplifier.

[0182] The embodiments of the present application provide a computer program product containing instructions, which, when running on a computer, cause the computer to execute the method applied to a power amplifier in the above-mentioned embodiments.

[0183] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0184] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0185] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0186] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings, direct couplings, or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0187] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0188] In addition, the functional units in each embodiment of this application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0189] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of this application, in essence, or the part that makes a contribution to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0190] As described above, the above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A control method for a multi-combined power amplifier based on multiple phases, characterized in that, The method includes: Obtaining a baseband signal; Generating two vector signals according to the baseband signal, the two vector signals respectively including a phase signal and an amplitude signal, and the two vector signals being non-orthogonal signals; Obtaining an amplitude control signal of a target power amplifier according to quantization coding of the amplitude signals of the two vector signals, the target power amplifier including a main power amplifier and a secondary power amplifier, and the main power amplifier and the secondary power amplifier respectively including a plurality of working units; Obtaining a phase control signal of the target power amplifier according to the phase signals of the two vector signals; Control the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal. The amplitude signals corresponding to the two-path vector signals are (ρ1, ρ2), and the amplitude control signal obtained according to the quantization coding of the amplitude signal includes the amplitude control signals (ACW1, ACW2) of the main power amplifier and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier; the phase signals corresponding to the two-path vector signals are (φ m , φ m+1 ), and the phase control signal obtained according to the phase signal is and wherein, the amplitude control signal is used to control the switch-on state of the working unit, and the phase control signal is used to control the starting position of the switch of the working unit, is selected from M non-orthogonal discrete phase bases according to the phase signal M is an integer greater than 1, 1 ≤ m < M, and m is an integer.

2. The method according to claim 1, characterized in that, The controlling the plurality of working units of the main power amplifier and the secondary power amplifier to output power signals according to the phase control signal and the amplitude control signal includes: According to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier control multiple first working units in the main power amplifier to output power signals, and the first working units are composed of multiple main power amplifier units; According to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifiers control a plurality of second working units in the auxiliary power amplifiers to output power signals, and the second working units are composed of a plurality of auxiliary power amplifier units.

3. The method according to claim 2, characterized in that The multiple first working units include a first unit and a second unit, and according to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier control the multiple first working units in the main power amplifier, including: According to the phase control signal and respectively control the starting positions of a plurality of main power amplifier unit switches in the first unit and the second unit; Controlling the output power signals of a plurality of main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively.

4. The method according to claim 3, wherein The multiple second working units include a third unit and a fourth unit, and according to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifiers control the multiple second working units in the auxiliary power amplifiers, including: According to the phase control signal and respectively control the starting positions of the switches of multiple auxiliary power amplifier units in the third unit and the fourth unit; Controlling the output power signals of a plurality of secondary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the secondary power amplifier respectively.

5. The method according to claim 4, characterized in that, When the amplitude signal is less than a first preset threshold, the controlling the output power signals of a plurality of main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively includes: Controlling a plurality of main power amplifier units in the first unit and the second unit to operate at a first power, the first power being less than a second power, and the second power being the highest power in the low voltage mode; The controlling the output power signals of a plurality of secondary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the secondary power amplifier respectively includes: Controlling to turn off a plurality of secondary power amplifier units in the third unit and the fourth unit.

6. The method according to claim 5, wherein When the amplitude signal is less than a second preset threshold and not less than the first preset threshold, the controlling the output power signals of a plurality of main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively includes: Controlling a plurality of main power amplifier units in the first unit and the second unit to operate at the second power; The controlling the output power signals of a plurality of secondary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the secondary power amplifier respectively includes: Controlling a plurality of secondary power amplifier units in the third unit and the fourth unit to operate at the first power.

7. The method according to claim 6, wherein When the amplitude signal is less than a third preset threshold and not less than the second preset threshold, the controlling the output power signals of a plurality of main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively includes: Controlling a plurality of main power amplifier units in the first unit and the second unit to operate at a third power, the third power being greater than the second power and less than a fourth power, and the fourth power being the highest power in the high voltage mode; The controlling the output power signals of a plurality of secondary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the secondary power amplifier respectively includes: Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the second power.

8. The method according to claim 7, wherein When the amplitude signal is not less than the fourth preset threshold, controlling the output power signals of multiple main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively includes: Controlling multiple main power amplifier units in the first unit and the second unit to operate at the fourth power; Controlling the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier respectively includes: Controlling multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the third power.

9. The method according to any one of claims 1-8, characterized in that, At least one group of the amplitude control signals (ACW1, ACW2) and (ACW3, ACW4) is a different control signal.

10. The method according to claim 1, characterized in that, After generating two vector signals according to the baseband signal, the method further includes: Performing non-linear compensation on the two vector signals to obtain an updated phase signal and an updated amplitude signal, where the updated phase signal is used to obtain the phase control signal of the target power amplifier; the updated amplitude signal is used to perform quantization coding to obtain the amplitude control signal of the target power amplifier.

11. An electronic device, characterized in that, The device includes a signal processing module and an amplification module connected to each other, where: The signal processing module is configured to obtain a baseband signal; generate two vector signals according to the baseband signal, the two vector signals respectively include a phase signal and an amplitude signal, and the two vector signals are non-orthogonal signals; The signal processing module is further configured to obtain the amplitude control signal of the target power amplifier according to the quantization coding of the amplitude signals of the two vector signals, and obtain the phase control signal of the target power amplifier according to the phase signals of the two vector signals; the target power amplifier includes a main power amplifier and an auxiliary power amplifier, and the main power amplifier and the auxiliary power amplifier respectively include multiple working units; The amplification module is configured to control the output power signals of multiple working units of the main power amplifier and the auxiliary power amplifier according to the phase control signal and the amplitude control signal. The amplitude signals corresponding to the two-path vector signals are (ρ1, ρ2), and the amplitude control signal obtained according to the quantization coding of the amplitude signal includes the amplitude control signals (ACW1, ACW2) of the main power amplifier and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifier. The phase signals corresponding to the two-path vector signals are (φ m , φ m+1 ), and the phase control signal obtained according to the phase signal is and wherein, the amplitude control signal is used to control the switch-on state of the working unit, and the phase control signal is used to control the starting position of the switch of the working unit. is selected from M non-orthogonal discrete phase bases according to the phase signal. M is an integer greater than 1, 1 ≤ m < M, and m is an integer.

12. The device according to claim 11, wherein, The amplification module is specifically configured to: According to the phase control signal and and the amplitude control signals (ACW1, ACW2) of the main power amplifier control a plurality of first working units in the main power amplifier to output power signals, and the first working units are composed of a plurality of main power amplifier units; According to the phase control signal and and the amplitude control signals (ACW3, ACW4) of the auxiliary power amplifiers control a plurality of second working units in the auxiliary power amplifiers to output power signals, and the second working units are composed of a plurality of auxiliary power amplifier units.

13. The device according to claim 12, characterized in that, The multiple first working units include a first unit and a second unit, and the amplification module is specifically configured to: According to the phase control signal and respectively control the starting positions of a plurality of main power amplifier unit switches in the first unit and the second unit; Control the output power signals of multiple main power amplifier units in the first unit and the second unit according to the amplitude control signals ACW1 and ACW2 of the main power amplifier respectively.

14. The device according to claim 13, wherein, The multiple second working units include a third unit and a fourth unit, and the amplification module is specifically configured to: According to the phase control signal and respectively control the starting positions of the switches of multiple auxiliary power amplifier units in the third unit and the fourth unit; Control the output power signals of multiple auxiliary power amplifier units in the third unit and the fourth unit according to the amplitude control signals ACW3 and ACW4 of the auxiliary power amplifier respectively.

15. The device according to claim 14, characterized in that, When the amplitude signal is less than the first preset threshold, the amplification module is specifically configured to: Control multiple main power amplifier units in the first unit and the second unit to operate at a first power, the first power is less than a second power, and the second power is the highest power in the low voltage mode; Control to turn off multiple auxiliary power amplifier units in the third unit and the fourth unit.

16. The device according to claim 15, characterized in that, When the amplitude signal is less than the second preset threshold and not less than the first preset threshold, the amplification module is specifically configured to: Control multiple main power amplifier units in the first unit and the second unit to operate at the second power; Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the first power.

17. The device according to claim 16, characterized in that, When the amplitude signal is less than the third preset threshold and not less than the second preset threshold, the amplification module is specifically configured to: Control multiple main power amplifier units in the first unit and the second unit to operate at a third power, where the third power is greater than the second power and less than the fourth power, and the fourth power is the highest power in the high-voltage mode; Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the second power.

18. The device according to claim 17, wherein When the amplitude signal is not less than the fourth preset threshold, the amplification module is specifically configured to: Control multiple main power amplifier units in the first unit and the second unit to operate at the fourth power; Control multiple auxiliary power amplifier units in the third unit and the fourth unit to operate at the third power.

19. The device according to any one of claims 11-18, characterized in that, At least one set of the amplitude control signals (ACW1, ACW2) and (ACW3, ACW4) is a different control signal.

20. The device according to claim 11, wherein, The signal processing module further includes a mapping module for: Performing non-linear compensation on the two-way vector signals to obtain an updated phase signal and an updated amplitude signal, where the updated phase signal is used to obtain the phase control signal of the target power amplifier; the updated amplitude signal is used for quantization coding to obtain the amplitude control signal of the target power amplifier.

21. An electronic device, characterized in that, The device includes at least one processor, and the at least one processor is coupled to at least one memory: The at least one processor is configured to execute computer programs or instructions stored in the at least one memory, so that the device executes the method according to any one of claims 1-10.

22. A readable storage medium, characterized in that, For storing instructions, when the instructions are executed, the method according to any one of claims 1-10 is implemented.

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