WO2023173383A1 - Procédé de commande de puissance adaptative, système de traitement de puissance adaptative, et dispositif associé - Google Patents

Procédé de commande de puissance adaptative, système de traitement de puissance adaptative, et dispositif associé Download PDF

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Publication number
WO2023173383A1
WO2023173383A1 PCT/CN2022/081559 CN2022081559W WO2023173383A1 WO 2023173383 A1 WO2023173383 A1 WO 2023173383A1 CN 2022081559 W CN2022081559 W CN 2022081559W WO 2023173383 A1 WO2023173383 A1 WO 2023173383A1
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module
processing system
parameters
power
configuration
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PCT/CN2022/081559
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English (en)
Chinese (zh)
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上官声长
罗青全
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华为技术有限公司
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Priority to CN202280081240.1A priority Critical patent/CN118369893A/zh
Priority to PCT/CN2022/081559 priority patent/WO2023173383A1/fr
Publication of WO2023173383A1 publication Critical patent/WO2023173383A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems

Definitions

  • the first aspect of the embodiment of the present application provides an adaptive power processing system, including a control module, a DPD module and a power amplification module; the control module is used to receive service information and determine corresponding configuration parameters based on the service information.
  • the configuration The parameters include first configuration parameters and second configuration parameters; the DPD module is coupled to the control module and is used to receive the first configuration parameters sent by the control module, process the corresponding baseband signal according to the first configuration parameters, and output Corresponding predistortion signal; a power amplification module is coupled to the control module and the DPD module respectively, and is used to receive the second configuration parameter sent by the control module and the predistortion signal sent by the DPD module, and processing the predistortion signal according to the second configuration parameter to output a corresponding amplified signal; wherein different service information corresponds to different first configuration parameters.
  • the adaptive power processing system determines the configuration parameters corresponding to the baseband signal based on the service information corresponding to the baseband signal. And configure the DPD module according to the first configuration parameter, configure the power amplification module according to the second configuration parameter, configure the DPD module and the power amplification module according to the signal information corresponding to the baseband information, so that the adaptive power processing system can be based on the actual baseband signal required.
  • the configuration parameters configure the corresponding DPD module and power amplifier module so that the adaptive power processing system always works in the best state to improve the linearity and power consumption performance of the adaptive power processing system.
  • the service information may be one or more of the starting frequency and ending frequency, transmit power, and bandwidth corresponding to the baseband signal.
  • the service information may also include other parameters.
  • a mapping relationship table is stored in the control module.
  • the mapping relationship table includes the service information and corresponding configuration parameters.
  • the mapping relationship table can be used in adaptive power processing.
  • the system is determined during factory calibration and stored in the corresponding control module.
  • the configuration information corresponding to the business information can be determined based on the mapping relationship and the business information.
  • the first configuration parameter, the envelope processing parameter and the power amplification operating parameter are determined through the center frequency point and the actual bandwidth of the baseband signal, so that the DPD module, the power amplification module and the envelope processing module
  • the configuration parameters can meet the gain of the baseband signal and achieve the linearity of the power amplifier module.
  • the adaptive power processing system supports M bandwidths
  • the control module is further configured to: calibrate the adaptive power processing system according to preset N bias voltages; Among them, M is greater than or equal to N.
  • M is greater than or equal to N.
  • the corresponding bias voltage can be determined based on the bandwidth supported by the adaptive power processing system. Since each bias voltage can cover a certain range of bandwidth, the bias voltage can be determined based on the radio frequency performance to ensure a certain bias voltage.
  • the corresponding power amplification module has good radio frequency performance and can meet all bandwidths supported by the adaptive system.
  • a second aspect of this application provides an adaptive power control method applied to an adaptive power processing system.
  • the adaptive power processing system includes a DPD module and a power amplification module, and the power amplification module is coupled with the DPD module;
  • the method includes: receiving service information corresponding to the baseband signal; determining configuration parameters corresponding to the baseband signal according to the service information, where the configuration parameters include first configuration parameters and second configuration parameters; according to the first configuration parameter Configure the DPD module so that the DPD module outputs a predistortion signal to the power amplification module according to the first configuration parameter and the baseband signal; configure the power amplification module according to the second configuration parameter so that The power amplification module outputs an amplified signal according to the second configuration parameter and the predistortion signal; wherein different service information corresponds to different first configuration parameters.
  • the time at which the control module receives the service information is earlier than the time at which the envelope processing module and the DPD module receive the baseband signal.
  • the first configuration parameters include gain parameters and predistortion parameters
  • the service information also includes transmit power
  • the DPD module includes a predistortion module and a transmit circuit module
  • the predistortion module The distortion module is coupled to the transmit circuit module respectively
  • the transmit circuit module is coupled to the power amplification module.
  • the first configuration parameter is determined based on the actual bandwidth, the center frequency point and the mapping relationship table. , including: determining the gain parameter based on the transmit power, the actual bandwidth, and the mapping relationship table; determining the predistortion parameter based on the center frequency point and the mapping relationship table;
  • Configuring the DPD module according to the first configuration parameter includes: configuring the transmit circuit module according to the gain parameter; configuring the predistortion module according to the predistortion parameter.
  • the envelope processing module includes two working modes: APT mode and ET mode, and the method further includes: if the transmit power of the baseband signal is greater than a preset threshold, then The working mode of the envelope processing module is set to the ET mode; if the transmission power of the baseband signal is less than or equal to the preset threshold, the working mode of the envelope processing module is set to the APT mode.
  • the service information also includes the starting time of the baseband signal
  • the method further includes: determining the configuration time based on the starting time; configuring the configuration time based on the configuration time.
  • the adaptive power processing system further includes a feedback module, the feedback module is configured to receive the baseband signal and the amplified signal output by the power amplification module, and perform the amplification according to the signal and the baseband signal to output a feedback signal to the DPD module; the DPD module is further configured to output the predistortion signal according to the feedback signal and the first configuration parameter.
  • the adaptive power processing system supports M bandwidths, and the method further includes: calibrating the adaptive power processing system according to preset N bias voltages; wherein, M is greater than or equal to N.
  • a fourth aspect of the present application provides a storage medium on which computer instructions are stored, and when the computer instructions are run, the steps of the above method are executed.
  • the adaptive power control method of the second aspect, the communication device of the third aspect, the storage medium of the fourth aspect, and the device of the fifth aspect provided above correspond to the adaptive power processing system of the first aspect, therefore , the beneficial effects it can achieve can be referred to the beneficial effects in the corresponding system provided above, and will not be described again here.
  • Figure 2 is a schematic module diagram of a transmitter provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of determining the corresponding bias voltage according to the bandwidth of the signal provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram comparing the efficacy of two baseband signals provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • Coupled here includes any direct and indirect electrical connection means. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be directly electrically connected to the second device. Or indirectly electrically connected to a second device through other devices or connection means.
  • Figure 1 shows two application scenarios of the transmitter of user equipment provided by this application: scenario one and scenario two.
  • the abscissa in Scenario 1 and Scenario 2 is time t
  • the ordinate is frequency f
  • the height of the rectangular block represents the frequency resource (bandwidth) of the group of symbols, such as BW1-BW5.
  • the actual bandwidth required by the transmitter is: BW1 and BW2, among which BW2 is significantly larger than BW1.
  • the actual bandwidth required by the transmitter is BW4, and on the other three time resources, the actual bandwidth required by the transmitter is BW5, where, BW5 is significantly larger than BW4.
  • the actual bandwidth required by a transmitter is not fixed.
  • the frequency resources (bandwidth) required by the transmitter are inconsistent on discontinuous time resources (symbols) (see scenario 1), and the required frequency resources (bandwidth) on continuous time resources (symbols) are inconsistent (see Scenario 1). See scene 2).
  • FIG. 2 is a schematic structural diagram of a transmitter 1 provided by an embodiment of the present application.
  • a transmitter 1 includes a baseband processor 300 and an adaptive power processing system 100.
  • the baseband processor 300 is coupled to the adaptive power processing system 100.
  • the baseband processor 300 is configured to provide the adaptive power processing system 100 with a baseband signal and service information corresponding to the baseband signal, where the service information may be the transmit power of the baseband signal, bandwidth and other parameters.
  • the transmitter 1 can be used in communication equipment such as base stations and user equipment.
  • the communication equipment can send signals through the transmitter 1 to achieve communication with other communication equipment.
  • the adaptive power processing system 100 includes a DPD (digital predistrotion) module 10, a power amplification module 30 and a control module 40.
  • DPD digital predistrotion
  • the DPD module 10 is coupled with the baseband processor 300, and is used to receive the baseband signal sent by the baseband processor 300, and output the corresponding predistortion signal based on the baseband signal, and send the predistortion signal to the power amplifier module (Power Amplifier, PA)30.
  • the power amplifier module Power Amplifier, PA
  • the power amplification module 30 is coupled with the DPD module 10 .
  • the power amplification module 30 is used to receive the predistortion signal output by the DPD module 10 .
  • the power amplification module 30 is also used to power amplify the baseband signal based on the predistortion signal, and send the amplified baseband signal to the corresponding antenna, and then transmit it out from the corresponding antenna.
  • the DPD module 10 performs pre-distortion processing on the baseband signal to compensate for the distortion of the power amplification module 30, thereby linearizing the power amplification module 30.
  • the envelope processing module 20 determines the power supply voltage of the power amplification module 30 through the baseband signal, and can adjust the power supply voltage of the power amplification module 30 according to the output power of the power amplification module 30 .
  • the DPD module 10 and the envelope processing module 20 cooperate to improve the linearity and efficiency of the power amplification module 30 .
  • the control module 40 is coupled to the baseband processor 300, the DPD module 10 and the power amplification module 30 respectively.
  • the control module 40 is configured to receive the service information corresponding to the baseband signal sent by the baseband processor 300, and determine the configuration parameters corresponding to the baseband signal based on the service information.
  • the configuration parameters include first configuration parameters and second configuration parameters.
  • the control module 40 determines the configuration parameters corresponding to the baseband signal
  • the control module 40 is also used to configure the DPD module 10 according to the first configuration parameter.
  • the DPD module processes the baseband signal sent by the baseband processor 300 according to the first configuration parameter.
  • the DPD The module outputs a predistortion signal to the power amplification module 30; the power amplification module 30 is configured according to the second configuration parameter, and the power amplification module 30 outputs a corresponding amplified signal according to the second configuration parameter and the predistortion signal.
  • the transmitter 1 Since different service information corresponds to different first configuration parameters, that is, the transmitter 1 carries different services, and the service information corresponding to the service is different, where the service information may be the bandwidth or transmission power required to implement the service.
  • the first configuration parameter is the configuration parameter corresponding to the DPD module when the power amplification module 30 achieves 100MHz; the power amplification module 30 is in a small bandwidth working mode. (for example, 10 MHz), then the first configuration parameter is the corresponding configuration parameter of the DPD module 10 when the power amplification module 30 achieves 10 MHz.
  • the adaptive power processing system 100 determines the configuration parameters corresponding to the baseband signal based on the service information corresponding to the baseband signal, and based on
  • the DPD module 10 is configured with the first configuration parameter
  • the power amplification module 30 is configured according to the second configuration parameter
  • the DPD module 10 and the power amplification module 30 are configured according to the signal information corresponding to the baseband information, so that the adaptive power processing system 100 can be configured according to the actual baseband signal.
  • the required configuration parameters dynamically configure the corresponding DPD module 10 and power amplification module 30 so that the adaptive power processing system 100 always works in the best state to improve the linearity and power consumption performance of the adaptive power processing system 100 .
  • control module 40 stores a mapping relationship table.
  • the mapping relationship table includes business information and configuration parameters corresponding to the business information.
  • the control module 40 determines corresponding configuration parameters based on the mapping relationship table and service information.
  • the mapping relationship table is in tabular form. That is, the table includes the corresponding relationship between the center frequency point, the actual bandwidth and the first configuration parameter, and also includes the corresponding relationship between the actual bandwidth and the power amplification operating parameters and envelope processing parameters.
  • the mapping relationship table can also be a lookup function. By inputting the center frequency point and actual bandwidth to the search function, the search function outputs the corresponding configuration parameters.
  • mapping relationship table can also be stored in a storage unit that is associated with the control module 40, and is not specifically limited here.
  • multiple bandwidths of the adaptive power processing system 100 and the configuration parameters corresponding to each bandwidth are determined during production line calibration, and a mapping relationship table is formed based on the corresponding relationship between the multiple bandwidths and the configuration parameters, wherein according to the mapping relationship
  • the adaptive power processing system 100 configured with the configuration parameters in the table can work in an optimal state. In this way, when the bandwidth required for the baseband signal transmitted by the adaptive power processing system 100 is determined, the configuration parameters for each module of the adaptive power processing system 100 to process the baseband signal can be determined based on the bandwidth and the mapping relationship table.
  • the adaptive power The processing system 100 processes the baseband signal according to the configuration parameters, so that the adaptive power processing system 100 always works in the optimal state, so as to realize that the power consumption of the adaptive power processing system 100 corresponds to the power consumption required by the actual baseband signal. , to improve the linearity and power consumption performance of the adaptive power processing system 100 .
  • the adaptive power processing system 100 further includes an envelope processing module 20, and the second configuration parameters further include envelope processing parameters and power amplification operating parameters; wherein, the envelope processing module 20 is configured with the control module 40 and the power amplifier respectively.
  • the amplification module 30 is coupled, and the envelope processing module 20 is used to receive the envelope processing parameters sent by the control module 40 to output the corresponding third configuration parameters to the power amplification module 30; the power amplification module 30 is used to receive the third configuration parameters and control
  • the module 40 sends the power amplification operating parameters, and processes the predistorted signal according to the third configuration parameters and the power amplification operating parameters.
  • the adaptive power processing system 100 determines the second configuration parameter corresponding to the baseband signal based on the service information corresponding to the baseband signal, And configure the power amplification module 30 and the envelope processing module 20 according to the second configuration parameters.
  • the third configuration parameter is the supply voltage of the power amplifier module 30 .
  • different service information corresponds to different second configuration parameters.
  • different parameters are configured for the power amplification module 30 and the envelope processing module 20, so that the power amplification module 30 and the envelope processing module 20 20.
  • Implement different second configuration parameters according to different service information and process corresponding predistortion signals according to the second configuration parameters corresponding to the service information.
  • the first transmission time when the baseband processor 300 transmits the service information is earlier than the second transmission time when the baseband processor 300 transmits the baseband signal. That is, the baseband processor 300 first sends the service information and then sends the baseband signal. In this way, the time when the control module 40 receives the service information is earlier than the time when the DPD module 10 and the envelope processing module 20 receive the baseband signal. Through this time difference, the control module 40 determines the configuration parameters of the DPD module 10, the envelope processing module 20 and the power amplification module 30 corresponding to the baseband signal according to the service information, and configures the DPD module 10 and the envelope processing module 20 according to the configuration parameters. After the power amplification module 30, the DPD module 10, the envelope processing module 20 and the power amplification module 30 process the corresponding baseband signal according to the configuration parameters.
  • the first sending moment is X time slices earlier than the second sending moment.
  • the time slice can be a time slot, a continuous subframe, a symbol, etc.
  • X is a positive integer greater than or equal to 1.
  • the power amplification operating parameters at least include the bias voltage of the power amplification module 30 .
  • the power amplification operating parameters may also include other parameters.
  • the power consumption of the power amplifier module 30 is proportional to the supply voltage.
  • the power amplification module 30 needs to obtain the lowest supply voltage in a certain transmission power scenario. Therefore, in order to improve the efficiency of the power amplification module 30, it is necessary to dynamically control the supply voltage of the power amplification module 30.
  • the envelope processing module 20 may only support the average power tracking (Average Power Tracking, APT) mode or only the envelope tracking (Envelope Tracking, ET) mode. If the envelope processing module 20 only supports the APT mode, Then the envelope processing parameters are APT parameters, such as an APT lookup table; if the envelope processing module 20 only supports the ET mode, then the envelope processing parameters are ET parameters, such as an ET lookup table.
  • APT Average Power Tracking
  • ET envelope Tracking
  • the envelope processing module 20 supports at least two modes, such as average power tracking (Average Power Tracking, APT) mode and envelope tracking (Envelope Tracking, ET) mode.
  • APT Average Power Tracking
  • ET envelope tracking
  • the envelope processing module 20 uses these two technologies to adjust the power supply voltage according to the baseband signal to reduce the power consumption of the power amplification module 30 .
  • the APT technology converts the output power and baseband signal of the power amplification module 30 into a control signal, and converts the control signal into the supply voltage of the power amplification module 30 to control the output power by adjusting the supply voltage of the power amplification module 30 .
  • the ET technology keeps the power amplification module 30 in a working saturated state, determines the supply voltage according to the transmission power of the baseband signal and the corresponding baseband signal, and controls the output power by adjusting the supply voltage of the power amplification module 30 .
  • the control module 40 sets the working mode of the envelope processing module 20 to the ET mode; at this time, the ET mode provides higher efficiency than the APT mode.
  • the working mode of the envelope processing module is set to the APT mode.
  • the APT mode provides higher efficiency than the ET mode.
  • the envelope processing parameters at least include the APT lookup table.
  • the APT lookup table records the supply voltage corresponding to each transmission power of the power amplification module 30 . In this way, when the control module 40 determines the bias voltage of the power amplification module 30, the supply voltage output by the envelope processing module 20 can be determined through the bias voltage and the APT lookup table.
  • the envelope processing parameters at least include an ET lookup table.
  • the ET lookup table records the supply voltage corresponding to each transmission power of the power amplification module 30 . In this way, when the control module 40 determines the bias voltage of the power amplification module 30, the supply voltage output by the envelope processing module 20 can be determined through the bias voltage and the ET lookup table.
  • the service information also includes a center frequency point.
  • the control module 40 is further configured to determine the first configuration parameter based on the actual bandwidth, the center frequency point, and the mapping relationship table.
  • the control module 40 determines the packet based on the actual bandwidth and the mapping relationship table. network processing parameters and power amplification operating parameters.
  • the baseband signals corresponding to different services may belong to different frequency bands. Therefore, the frequency band in which the service is located can be determined through the center frequency point where the baseband signal is located.
  • the mapping relationship table stores first configuration parameters corresponding to multiple frequency bands. In this way, the frequency band to which the baseband signal belongs can be determined based on the center frequency point where the baseband signal is located, and the allocated frequency resources can be determined based on the actual bandwidth. In this way, based on The two parameters of actual bandwidth and center frequency determine the corresponding first configuration parameter in the mapping relationship table.
  • the service information includes the starting frequency point and the ending frequency point of the baseband signal.
  • the control module 40 can calculate the corresponding center frequency point based on the starting frequency point and the ending frequency point.
  • the control module 40 can also determine the corresponding center frequency point based on other methods, such as frequency band information of resource blocks, which is not specifically limited here.
  • the configuration parameters corresponding to each bandwidth can be determined during factory calibration, that is, when the adaptive power processing system 100 is configured according to the configuration parameters, the performance indicators of the power amplification module 30 Meet the preset threshold.
  • the power amplification operating parameters and envelope processing parameters corresponding to the actual bandwidth can be determined so that the performance of the power amplification module 30 always meets the preset threshold requirements.
  • the service information also includes the starting time of the baseband signal, where the starting time may be the time when the baseband processor 300 sends the baseband signal.
  • control module 40 is also used to determine the configuration time based on the starting time, and configure the DPD module 10, the power amplification module 30 and the envelope processing module 20 based on the configuration time, so that the control module 40 completes the forward signal according to the service information. Coordinated control of the path (configuration of the DPD module 10) and the forward envelope path (the configuration of the envelope processing module 20). That is, by configuring the DPD module 10 and the envelope processing module 20 at the configuration time, the DPD module 10 and the envelope processing module 20 process the corresponding baseband signal according to the configuration parameters, and the processing of the baseband signal is synchronized with the validity of the corresponding configuration parameters.
  • the configuration time may be the time when the configuration parameters take effect in the corresponding module.
  • the control module 40 configures the first configuration parameter to the DPD module 10 at the configuration time, and the DPD module 10 immediately processes the corresponding baseband signal according to the first configuration parameter.
  • the DPD module 10 stores a first configuration parameter set, and the first configuration parameter set includes a plurality of first configuration parameters.
  • the envelope processing module 20 stores an envelope processing parameter set, and the envelope processing parameter set includes a plurality of envelope processing parameters.
  • the mapping relationship table also includes indication information for each configuration parameter, and the indication information includes a first identifier and a second identifier. The first identifier is used to identify the corresponding first configuration parameter, and the second identifier is used to identify the corresponding envelope processing parameter.
  • the control module 40 is also configured to determine the corresponding indication information according to the configuration parameter, and send the first identification to the DPD module 10, so that the DPD module 10 determines the first configuration parameter to be configured according to the first identification and the first configuration parameter set;
  • the second identification is sent to the envelope processing module 20, so that the envelope processing module 20 determines the envelope processing parameters to be configured according to the second identification and the envelope processing parameter set.
  • control module 40 configures the operating parameters of the DPD module 10 or the envelope processing module 20 according to the service information of the baseband signal, it only needs to send the instruction information to the DPD module 10 or the envelope processing module 20.
  • the processing module 20 determines the parameters to be configured based on the instruction information and the stored configuration parameter set, and performs configuration based on the parameters to be configured.
  • control module 40 also stores current indication information corresponding to the current configuration parameters of the DPD module 10 and the envelope processing module 20 .
  • the control module 40 is also used to compare the indication information with the current indication information before sending the indication information to the DPD module 10 or the envelope processing module 20 . If the indication information is consistent with the current indication information, that is, the current configuration parameters of the DPD module 10 or the envelope processing module 20 are the same as the configuration parameters determined by the control module 40 based on the indication information, then the control module 40 does not need to provide any information to the DPD module 10 and the envelope processing module. 20Send instruction information.
  • the control module 40 will send a request to the DPD module 10 or envelope processing module 10 or the packet based on the comparison result.
  • the network processing module 20 sends the indication information. For example, if the first identifier in the indication information is different from the current indication information, the control module 40 sends the configuration information carrying the first identifier to the DPD module 10 .
  • the DPD module 10 includes a predistortion module 12 and a transmit circuit module 14.
  • the predistortion module 12 and the transmit circuit module 14 are coupled.
  • the predistortion module 12 is coupled with the baseband processor 300 and is used to receive the baseband signal sent by the baseband processor 300, perform nonlinear predistortion on the baseband signal, and send the nonlinearly predistorted signal to the transmitting circuit module.
  • the transmit circuit module 14 receives the signal from the pre-distortion module 12 and processes the signal, such as digital-to-analog conversion and up-conversion processing, and sends the processed signal to the power amplification module 30 .
  • the control module 40 is further used to:
  • the predistortion module 12 is configured according to the predistortion parameters.
  • control module 40 determines the predistortion parameters according to the actual bandwidth and center frequency point, configures the predistortion module 12 according to the predistortion parameters, and the predistortion module 12 processes the baseband information according to the predistortion parameters, and sends the processed signal to the transmitter.
  • the actual gain of the adaptive power processing system 100 is determined by the transmit circuit module 14 and the power amplification module 30 .
  • the amplification factor of the baseband signal is determined by the transmit power of the baseband signal and the actual bandwidth. This amplification factor is achieved through the cooperation of the transmitting circuit module 14 and the power amplification module 30 .
  • the mapping relationship table may include gain parameters and power amplification operating parameters of the baseband signal at the amplification factor.
  • the predistortion module 12 is configured through the predistortion parameters to solve the linearity problem of the power amplification module 30 under a specific bias voltage.
  • the mapping relationship table includes the corresponding relationship between the transmit power, the actual bandwidth and the gain parameter, and also includes the corresponding relationship between the actual bandwidth, the center frequency point and the predistortion parameter.
  • the adaptive power processing system 100 also works in factory mode, and the adaptive power processing system 100 can perform parameter calibration in the factory mode to determine configuration parameters corresponding to the signal information.
  • the control module 40 is also used to: determine a bias voltage set of the power amplification module 30, where the bias voltage set includes multiple bias voltages; and calibrate the adaptive power processing system 100 according to the bias voltage set, To obtain the configuration parameters corresponding to each bias voltage; determine the mapping relationship table based on the bias voltage and configuration parameters. Specifically, the configuration parameters of each module of the adaptive power processing system 100 under each bias voltage are obtained, so that the adaptive power processing system 100 can operate under the configuration of the bias voltage and corresponding configuration parameters.
  • the bias voltage set may only include at least one bias voltage, and then during calibration, the bias voltage may be kept fixed by adjusting other configuration parameters, such as adjusting the lookup table parameters of the DPD module.
  • the adaptive power processing system 100 can be calibrated to determine the configuration parameters corresponding to the bias voltage of the power amplification module 30 .
  • FIG. 3 it is a schematic diagram of the bandwidth types supported by the power amplification module 30 of the transmitter 1 .
  • the power amplification module 30 of the transmitter 1 supports a total of 12 bandwidths.
  • the efficiency curve/gain curve of the power amplifier module 30 can be tested, and N bias voltages whose PAE and performance indicators meet the preset threshold range can be determined through the efficiency curve/gain curve.
  • the N bias voltages can cover the above 12 bandwidths.
  • N is a positive integer greater than 1 and less than or equal to 12.
  • the number of N can be determined based on the performance of the transmit power. It can be understood that in other embodiments, the number of bias voltages can also be determined in other ways.
  • the bias voltages determined based on the efficiency curve/gain curve are: PA_Vbias1, PA_Vbias2 and PA_Vbias3 respectively.
  • PA_Vbias1 when the bandwidth of the baseband signal is below 20MHz, select PA_Vbias1; when the bandwidth of the baseband signal is above 20MHz and below 100MHz, select PA_Vbias2; when the bandwidth of the baseband signal is above 100MHz and below 200MHz, select PA_Vbias3.
  • the power amplifier module can support a bandwidth within a certain range.
  • the adaptive power processing system 100 supports M bandwidths
  • the control module 40 is further configured to: calibrate the adaptive power processing system 100 according to preset N bias voltages; where M is greater than or equal to N.
  • the bias voltage can be determined through the bandwidth supported by the adaptive power processing system 100, and the adaptive power processing system 100 can be calibrated based on the determined bias voltage as a variable, that is, the adaptive power can be adaptively adjusted by fixing the bias voltage.
  • the configuration parameters of each module of the system 100 are processed so that the performance of the adaptive power processing system 100 meets the preset conditions, and then the configuration parameters corresponding to the offset are recorded to achieve calibration of the adaptive power processing system 100 .
  • the transmitter 1 also includes a feedback module 50.
  • the feedback module 50 is coupled to the power amplification module 30 and the DPD module 10 respectively.
  • the feedback module 50 is used to receive the amplified signal output by the power amplifier module 30.
  • the amplified signal and the baseband signal sent by the baseband processor are processed by the feedback module 50 and output a feedback signal containing nonlinear distortion.
  • the predistortion module 12 of the DPD module 10 receives The feedback signal is used to predistort the baseband signal sent by the baseband processor based on the feedback information, and the predistorted signal is sent to the transmitting circuit module.
  • the feedback module 50 is also used to compare the feedback signal with the baseband signal to extract nonlinear predistortion parameters, and send the nonlinear predistortion parameters to the DPD module 10 to ensure the linearization of the adaptive power processing system 100 .
  • the adaptive power processing system 100 performs parameter calibration in factory mode to determine the mapping relationship table mentioned above.
  • control module 40 is also used to: switch the feedback module to the pass state, and calibrate the adaptive power processing system to obtain the first configuration parameter;
  • the feedback module is switched to an off-circuit state, and the adaptive power processing system is calibrated to obtain the second configuration parameter.
  • the feedback module 50 can be bypassed, the bias voltages in the bias voltage set are selected one by one, and then the frequency band where the baseband signal is located is determined, and the adaptive power processing system 100 is debugged. parameters of each module, so that the power amplification module 30 enters the nonlinear amplification region and does not enter the cut-off region, so as to obtain the second configuration parameters of the power amplification module of the adaptive power processing system 100; then, switch the feedback module 50 to According to the path status, the adaptive power processing system 100 is calibrated according to the above calibration method to obtain the first configuration parameters.
  • corresponding parameters may be formed into a set, and the parameter set (eg, first parameter set) may be stored in a corresponding module.
  • the parameter set eg, first parameter set
  • multiple gain parameters of the transmit circuit module 14 form a gain parameter set, and the gain parameter set is stored in the transmit circuit module 14 .
  • the envelope processing parameters of the envelope processing module 20 form an envelope processing parameter set, and the envelope processing parameter set is stored in the envelope processing module 20 .
  • the envelope processing parameters when the envelope processing module 20 only supports the APT mode, the envelope processing parameters include the APT configuration parameters; when the envelope processing module 20 only supports the ET mode, the envelope processing parameters include the ET configuration parameters. When the envelope processing module 20 only supports the ET mode, the envelope processing parameters include the ET configuration parameters. When the module 20 supports both the APT mode and the ET mode, the envelope processing parameters include APT configuration parameters and ET configuration parameters. By configuring the corresponding parameters of the envelope processing module 20, the envelope processing module 20 outputs the corresponding power supply voltage.
  • control module 40 controls the feedback module 50 to operate normally, and selects the bias voltage in the bias voltage set, and then determines a frequency band in the preset frequency band set, and the feedback module 50 extracts the nonlinear parameters (i.e., predistortion parameters) of the corresponding frequency band. ), and the corresponding predistortion parameters of multiple frequency bands are combined to form a predistortion parameter set, and the predistortion parameter set is stored in the corresponding predistortion module 12 .
  • nonlinear parameters i.e., predistortion parameters
  • the feedback module 50 includes a coupler, a feedback circuit, and a nonlinear extraction module.
  • the coupler is coupled with the power amplifier module 30, and the coupler is coupled with the feedback circuit.
  • the signal output by the power amplifier module 30 passes through the coupler and the feedback circuit in sequence to obtain a feedback signal containing nonlinear distortion.
  • the nonlinear extraction module is coupled to the feedback circuit and is used to receive the baseband signal sent by the baseband processor 300 and the feedback signal sent by the feedback circuit.
  • the nonlinear extraction module determines the nonlinear parameters based on the baseband signal and the feedback signal, and stores the calibrated nonlinear parameters in the predistortion module 12 .
  • control module 40 forms a mapping relationship table based on the configuration parameters obtained in the above embodiment and the corresponding frequency bands and configuration voltages.
  • FIG. 5 is a schematic diagram comparing the efficacy of two baseband signals provided in this application.
  • the two baseband signals in the left figure are baseband signal A and baseband signal B respectively.
  • the bias voltage and configuration parameters corresponding to the baseband signal A are used to configure each module of the adaptive power processing system 100.
  • the power required by the transmitter to transmit the baseband signal A is less than the power required to transmit the baseband signal B. power.
  • the figure on the right shows the power consumed by the transmitter when configuring the adaptive power processing system according to the method provided in the above embodiment.
  • the bias voltage and configuration parameters corresponding to baseband signal B are used to configure adaptive power processing.
  • Various modules of system 100 are baseband signal A and baseband signal B respectively.
  • baseband signal A and baseband signal B belong to small bandwidth signals and large bandwidth signals respectively, and because different configuration parameters are configured according to different signals, the efficiency of the adaptive power processing system 100 in transmitting baseband signal A is greater than transmitting baseband signal B. The effect is to reduce the power consumption of the adaptive power processing system 100 and achieve energy saving.
  • the baseband signal A and the baseband signal B can be two continuous signals.
  • the baseband signal A and the baseband signal B may also be discontinuous signals, which are not specifically limited here.
  • FIG. 6 is a schematic flowchart of a power adaptive power control method provided by an embodiment of the present application. Depending on different needs, the order of steps in the flow chart can be changed and some steps can be omitted. For ease of explanation, only parts related to the embodiments of the present application are shown.
  • the power adaptive power control method can be applied to the adaptive power processing system 100 described in the above embodiment.
  • the adaptive power processing system 100 includes a DPD module 10 and a power amplification module 30.
  • the power amplification module 30 is coupled to the DPD module 10 respectively.
  • the adaptive power processing system 100 of the present application receives a baseband signal and the service information corresponding to the baseband signal, determines the configuration parameters corresponding to the baseband signal according to the service information, and configures the DPD module 10 and the power amplification module 30 according to the configuration parameters, so as to The DPD module 10 and the power amplifier module 30 are allowed to process the baseband signal according to the configuration parameters.
  • the power adaptive power control method includes:
  • the configuration parameters include first configuration parameters and second configuration parameters.
  • the DPD module 10 processes the received baseband signal according to the first configuration parameter and outputs the predistortion signal to the power amplification module 30.
  • the power amplification module 30 processes the predistortion signal according to the second configuration parameter to output an amplified signal. .
  • different service information corresponds to different first configuration parameters.
  • the baseband processor 300 sends the baseband signal and the service information corresponding to the baseband signal to the adaptive power processing system 100.
  • the adaptive power processing system 100 determines the configuration parameters corresponding to the baseband signal based on the service information corresponding to the baseband signal, and determines the configuration parameters corresponding to the baseband signal according to the first configuration. Parameterize the DPD module 10, configure the power amplification module 30 according to the second configuration parameter, configure the DPD module 10 and the power amplification module 30 according to the signal information corresponding to the baseband information, so that the adaptive power processing system 100 can be based on the actual baseband signal required.
  • the configuration parameters dynamically configure the corresponding DPD module 10 and power amplification module 30 so that the adaptive power processing system 100 always works in the best state to improve the linearity and power consumption performance of the adaptive power processing system 100 .
  • the time when the adaptive power processing system 100 receives the service information is earlier than the time when the DPD module 10 receives the baseband signal.
  • the adaptive power processing system 100 further includes an envelope processing module 20, and the second configuration parameters further include envelope processing parameters and power amplification operating parameters, and the power amplification module is configured according to the second configuration parameters, Specifically include:
  • the power amplification module 30 is configured according to the power amplification operating parameters, so that the power amplification module 30 processes the pre-distorted signal according to the third configuration parameter and the power amplification operating parameters.
  • the second configuration parameter is determined based on the actual bandwidth and the mapping relationship table.
  • the first configuration parameters include gain parameters and predistortion parameters
  • the service information also includes transmit power.
  • the DPD module includes a pre-distortion module and a transmit circuit module.
  • the predistortion module is respectively coupled to the transmitting circuit module, and the transmitting circuit module is coupled to the power amplification module.
  • the first configuration parameter is determined based on the center frequency point and the mapping relationship table, including: determining based on the transmitting power, actual bandwidth, and mapping relationship table.
  • Gain parameters determine the predistortion parameters based on the actual bandwidth, center frequency point and mapping relationship table;
  • the adaptive power processing system also operates in factory mode,
  • the working mode of the envelope processing module 20 is set to the ET mode.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

L'invention concerne un système de traitement de puissance adaptative, un dispositif de communication, un procédé de commande de puissance adaptative, un support de stockage, et un dispositif. Le système de traitement de puissance adaptative comprend un module DPD, un module d'amplification de puissance et un module de commande, le module de commande étant respectivement couplé au module DPD et au module d'amplification de puissance. Le module de commande détermine de manière dynamique, selon les changements de signal des informations de service de signaux de bande de base, des paramètres de configuration du module DPD et du module d'amplification de puissance, et configure le module DPD et le module d'amplification de puissance selon les paramètres de configuration, de sorte que le module DPD et le module d'amplification de puissance traitent les signaux de bande de base correspondant aux paramètres de configuration, ce qui permet d'améliorer les performances linéaires et de consommation d'énergie du module d'amplification de puissance.
PCT/CN2022/081559 2022-03-17 2022-03-17 Procédé de commande de puissance adaptative, système de traitement de puissance adaptative, et dispositif associé WO2023173383A1 (fr)

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CN202280081240.1A CN118369893A (zh) 2022-03-17 2022-03-17 自适应功率控制方法、自适应功率处理系统及相关装置
PCT/CN2022/081559 WO2023173383A1 (fr) 2022-03-17 2022-03-17 Procédé de commande de puissance adaptative, système de traitement de puissance adaptative, et dispositif associé

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101789923A (zh) * 2009-12-30 2010-07-28 京信通信系统（中国）有限公司 一种数字预失真功放系统及其处理信号的方法
US20150103952A1 (en) * 2012-02-28 2015-04-16 Zte Corporation Digital Predistortion Processing Method and Device
CN113132279A (zh) * 2019-12-30 2021-07-16 中兴通讯股份有限公司 一种预失真处理方法、装置、设备和存储介质
CN113630091A (zh) * 2020-05-08 2021-11-09 大唐移动通信设备有限公司 功率放大器及其预失真模型生成方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101789923A (zh) * 2009-12-30 2010-07-28 京信通信系统（中国）有限公司 一种数字预失真功放系统及其处理信号的方法
US20150103952A1 (en) * 2012-02-28 2015-04-16 Zte Corporation Digital Predistortion Processing Method and Device
CN113132279A (zh) * 2019-12-30 2021-07-16 中兴通讯股份有限公司 一种预失真处理方法、装置、设备和存储介质
CN113630091A (zh) * 2020-05-08 2021-11-09 大唐移动通信设备有限公司 功率放大器及其预失真模型生成方法及装置

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