Multi-carrier base station and control method, device, electronic device and storage medium thereof

Abstract

The present application relates to a multi-carrier base station and a control method, device, electronic device and storage medium thereof, which are applied to the field of communication technology, wherein the multi-carrier base station comprises: a baseband unit, a plurality of baseband modulation digital paths and a radio frequency front-end unit, wherein the two ends of each of the baseband modulation digital paths are respectively connected to the baseband unit and the radio frequency front-end unit; the baseband unit is used to send a modulation signal to the radio frequency front-end unit through at least one of the baseband modulation digital paths, and to send a control signal to the radio frequency front-end unit, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path; the radio frequency front-end unit is used to call a target DPD parameter corresponding to the target communication parameter in the control signal, configure a DPD algorithm based on the target DPD parameter, and perform output calibration on the modulation signal according to the configured DPD algorithm.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a multi-carrier base station and a control method, device, electronic device and storage medium thereof. Background Art

[0002] In narrowband digital communication systems, multi-carrier base stations mostly adopt the traditional solution, that is, the channel machine stacking method is used for design. Each channel machine is combined into one channel through a combiner. It is large in size and consumes a lot of power. This method will basically be gradually eliminated. The multi-carrier base station using the DPD method needs to calculate the carrier frequency in the entire frequency band, identify the number of carriers, and then perform real-time tracking and adjustment by the algorithm. This makes the algorithm very difficult, the real-time tracking is slow, the workload is large, and it is not conducive to the rapid implementation of the technology. Summary of the invention

[0003] The present application provides a multi-carrier base station and its control method, device, electronic device and storage medium, which are used to solve the problem in the prior art that a multi-carrier base station designed in a channel machine stacking manner requires full-band calculation of carrier frequencies, making the algorithm difficult and the workload large.

[0004] In a first aspect, an embodiment of the present application provides a multi-carrier base station, comprising: a baseband unit, a plurality of baseband modulation digital paths and a radio frequency front end unit, wherein two ends of each of the baseband modulation digital paths are respectively connected to the baseband unit and the radio frequency front end unit;

[0005] The baseband unit is used to send a modulation signal to the RF front-end unit through at least one of the baseband modulation digital paths, and to send a control signal to the RF front-end unit, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path;

[0006] The RF front-end unit is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

[0007] Optionally, the baseband unit includes a baseband control module, the RF front-end unit includes a DPD module and a power amplifier, two ends of each baseband modulation digital path are respectively connected to the baseband control module and the DPD module, and the DPD module is connected to the power amplifier;

[0008] The DPD module is used to obtain the target transmit power, synthesize the modulated signal to the power amplifier based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

[0009] In a second aspect, an embodiment of the present application provides a control method for a multi-carrier base station, which is applied to a baseband unit in the multi-carrier base station according to the first aspect, and the method includes:

[0010] Sending a modulated signal to a radio frequency front end unit via at least one of the baseband modulated digital paths;

[0011] A control signal is sent to the RF front-end unit, wherein the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

[0012] In a third aspect, an embodiment of the present application provides a control method for a multi-carrier base station, which is applied to a radio frequency front-end unit in the multi-carrier base station according to the first aspect, and the method includes:

[0013] Acquire a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path;

[0014] The target DPD parameters corresponding to the target communication parameters in the control signal are called, and the DPD algorithm is configured based on the target DPD parameters, and the output of the modulated signal is calibrated according to the configured DPD algorithm.

[0015] Optionally, calling a target DPD parameter corresponding to a target communication parameter in the control signal includes:

[0016] Obtaining a mapping relationship between pre-established communication parameters and DPD parameters;

[0017] A target DPD parameter corresponding to the target communication parameter is determined from the mapping relationship.

[0018] Optionally, output calibration of the modulated signal is performed according to the configured DPD algorithm, including:

[0019] Obtain the target transmit power, synthesize the modulated signal to the power amplifier of the RF front end based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

[0020] In a fourth aspect, an embodiment of the present application provides a control device for a multi-carrier base station, including:

[0021] A first sending module, configured to send a modulated signal to a radio frequency front end unit through at least one of the baseband modulation digital paths;

[0022] The second sending module is used to send a control signal to the RF front-end unit, where the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

[0023] In a fifth aspect, an embodiment of the present application provides a control device for a multi-carrier base station, including:

[0024] An acquisition module, used for acquiring a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used for indicating a target communication parameter of a carrier in the baseband modulation digital path;

[0025] The output module is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

[0026] In a sixth aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0027] The memory is used to store computer programs;

[0028] The processor is used to execute the program stored in the memory to implement the control method of the multi-carrier base station described in the second aspect or the third aspect.

[0029] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the control method of the multi-carrier base station described in the second aspect or the third aspect is implemented.

[0030] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the multi-carrier base station provided by the embodiment of the present application includes: a baseband unit, a plurality of baseband modulation digital paths and a radio frequency front-end unit, and the two ends of each baseband modulation digital path are respectively connected to the baseband unit and the radio frequency front-end unit; the baseband unit is used to send a modulation signal to the radio frequency front-end unit through at least one baseband modulation digital path, and send a control signal to the radio frequency front-end unit, and the control signal is used to indicate the target communication parameter of the carrier in the baseband modulation digital path; the radio frequency front-end unit is used to call the target DPD parameter corresponding to the target communication parameter in the control signal, and configure the DPD algorithm based on the target DPD parameter, and output calibrate the modulation signal according to the configured DPD algorithm. In this way, by setting up a plurality of baseband modulation digital paths and connecting them to the radio frequency front-end unit respectively, there is no need to judge the communication parameters such as the transmission frequency, bandwidth, power and number of carriers of the carrier in the full frequency band, which greatly reduces the difficulty of the algorithm. In addition, the present application does not need to set up multiple channel machines, which reduces the size of the multi-carrier base station and makes it more portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of the structure of a multi-carrier base station provided in one embodiment of the present application;

[0034] Figure 2 A flowchart of a method for controlling a multi-carrier base station provided in an embodiment of the present application;

[0035] Figure 3 A flowchart of a method for controlling a multi-carrier base station provided by another embodiment of the present application;

[0036] Figure 4 A structural diagram of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] Before further describing the embodiments of the present invention in detail, the technical background, nouns and terms involved in the embodiments of the present invention are described.

[0039] In related technologies, multi-carrier base stations are mostly designed in a channel machine stacking manner, which has high power consumption, high cost and large size, which is not conducive to on-site use. In particular, the emergency field requires miniaturized, low-power portable base stations. Based on this, it is necessary to design a multi-carrier base station with a linearization solution, namely a digital pre-distortion (DPD) solution, but the multi-carrier DPD technology threshold of narrowband (such as PDT / EPDT / DMR) digital communication systems is high, and the hardware cost is relatively high. Therefore, how to design a low-cost, low-power, miniaturized linearized multi-carrier base station is a very urgent need to reduce costs and increase efficiency and solve user pain points.

[0040] According to an embodiment of the present application, a multi-carrier base station is provided. Figure 1 , comprising: a baseband unit, a plurality of baseband modulation digital paths and a radio frequency front end unit, wherein two ends of each of the baseband modulation digital paths are respectively connected to the baseband unit and the radio frequency front end unit;

[0041] The baseband unit is used to send a modulation signal to the RF front-end unit through at least one of the baseband modulation digital paths, and to send a control signal to the RF front-end unit, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path;

[0042] The RF front-end unit is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

[0043] In some embodiments, by setting up multiple baseband modulation digital paths and connecting them to the RF front-end unit respectively, it is not necessary to determine the transmission frequency of the carrier and the number of carriers in the entire frequency band, which greatly reduces the difficulty of the algorithm. In addition, in the present application, it is not necessary to set up multiple channel machines, which reduces the size of the multi-carrier base station and makes it more portable.

[0044] Among them, the target communication parameters include but are not limited to the transmission frequency, power, bandwidth and number of carriers of each carrier, among which the number of carriers can also be determined based on the presence or absence of each modulation signal according to the RF front-end unit.

[0045] Furthermore, the baseband unit includes a baseband control module, the RF front-end unit includes a DPD module and a power amplifier, the two ends of each baseband modulation digital path are respectively connected to the baseband control module and the DPD module, and the DPD module is connected to the power amplifier.

[0046] The DPD module is used to obtain the target transmit power, synthesize the modulated signal to the power amplifier based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

[0047] In some embodiments, the number of baseband modulation digital channels can be set based on actual needs, for example, set to 2, 4 or 8. For example, if there are 4 multi-baseband modulation digital channels, that is, the transmission link is based on four carriers, the four baseband modulation digital channels are respectively connected to the DPD module in a four-carrier digital manner, and the DPD module is notified of the real-time carrier transmission frequency, power, bandwidth, and number of carriers of this base station through a control signal (or the number of carriers determined by the RF front-end unit based on the presence or absence of each modulation signal). The DPD module no longer needs to consume a large amount of algorithm resources to evaluate the real-time frequency, power, bandwidth, number of carriers and other communication parameters. If each connection channel has transmission data, this carrier participates in the DPD algorithm calculation, and if there is no signal, it does not participate.

[0048] Taking four carriers as an example, the parameter table of DPD parameters corresponding to different numbers of carriers such as single carrier, two carriers, three carriers, and four carriers, different powers, and different bandwidths is solidified in advance in the DPD algorithm list, so that the corresponding DPD parameters can be called according to the determined real-time number of carriers, transmission frequency, power, and bandwidth.

[0049] The multi-carrier base station provided by this application clarifies the specific connection method between the baseband unit and the RF front-end unit, and calculates multiple baseband modulation digital (digital channels) to be separately connected to the DPD module, without the need to determine the position (frequency) of the carrier and the number of carriers in the full frequency band, which greatly reduces the difficulty of the algorithm and the chip specifications used. In addition, specific indication parameters are provided, namely the transmission frequency of each carrier and the real-time carrier status of the base station (single carrier, two carriers, three carriers, four carriers, etc.), so that there is no need to calculate the number of carriers, the real-time modulation signal bandwidth and the transmission frequency of the carrier in the full frequency band.

[0050] The multi-carrier base station based on the present application has fast convergence speed, high stability, and small algorithm resource occupation, which can reduce the chip specifications on the DPD side and achieve the effect of reducing costs and increasing efficiency. Since there is no need to calculate the number of carriers, the real-time modulation signal bandwidth and the transmission frequency of its carriers in the full frequency band (for example, 400~470M, 350~390M, 223~235M, etc.) in real time, the algorithm resources are reduced exponentially.

[0051] Based on the same concept, an embodiment of the present application provides a control method for a multi-carrier base station, which can be applied to any form of electronic equipment, such as the baseband unit in the multi-carrier base station described in the above embodiment. Figure 2 As shown, the control method of the multi-carrier base station includes:

[0052] Step 201: Send a modulated signal to a radio frequency front end unit through at least one of the baseband modulation digital paths.

[0053] Step 202: Send a control signal to the RF front-end unit, where the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

[0054] Based on the same concept, an embodiment of the present application provides a control method for a multi-carrier base station, which can be applied to any form of electronic equipment, such as the RF front-end unit in the multi-carrier base station described in the above embodiment. Figure 3 As shown, the control method of the multi-carrier base station includes:

[0055] Step 301: Acquire a modulation signal and a control signal sent by a baseband unit through at least one baseband modulation digital path, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path.

[0056] Step 302: call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

[0057] In an optional embodiment, calling a target DPD parameter corresponding to a target communication parameter in the control signal includes:

[0058] Obtaining a mapping relationship between pre-established communication parameters and DPD parameters;

[0059] A target DPD parameter corresponding to the target communication parameter is determined from the mapping relationship.

[0060] In an optional embodiment, output calibration of the modulated signal is performed according to the configured DPD algorithm, including:

[0061] Obtain the target transmit power, synthesize the modulated signal to the power amplifier of the RF front end based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

[0062] In some embodiments, the target transmit power may be set according to actual needs.

[0063] In a specific embodiment, the control method of the multi-carrier base station of the present application can be implemented in the following manner.

[0064] First, the modulation (IQ) signal of the channel is given to the DPD module, and at the same time, the frequency of the carrier transmission of the DPD module is given through the control signal;

[0065] Second, determine the carrier transmission power (for example, 1W, 5W, 25W, 50W, etc.);

[0066] Third, determine the bandwidth of the carrier (e.g. 25kHz, 50kHz, 100kHz, etc.);

[0067] Fourth, the DPD module uses the default DPD parameter table according to the channel status (single carrier, two carriers, three carriers, four carriers, etc.) and the transmission power;

[0068] Fourth, multiple carriers are synthesized to the PA output through the DPD algorithm, and looped back to the DPD module for closed-loop verification and real-time calibration.

[0069] Fifth, complete the linear output calibration of the PA to ensure that the output power and adjacent channel indicators meet the requirements.

[0070] Based on the same concept, an embodiment of the present application provides a control device for a multi-carrier base station. The specific implementation of the device can refer to the description of the method embodiment part, and the repeated parts will not be repeated. The device mainly includes:

[0071] A first sending module, configured to send a modulated signal to a radio frequency front end unit through at least one of the baseband modulation digital paths;

[0072] The second sending module is used to send a control signal to the RF front-end unit, where the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

[0073] Based on the same concept, an embodiment of the present application provides a control device for a multi-carrier base station. The specific implementation of the device can refer to the description of the method embodiment part, and the repeated parts will not be repeated. The device mainly includes:

[0074] An acquisition module, used for acquiring a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used for indicating a target communication parameter of a carrier in the baseband modulation digital path;

[0075] The output module is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

[0076] Based on the same concept, an electronic device is also provided in the embodiment of the present application, such as Figure 4 As shown, the electronic device mainly includes: a processor 401, a memory 402 and a communication bus 403, wherein the processor 401 and the memory 402 communicate with each other through the communication bus 403. The memory 402 stores a program that can be executed by the processor 401, and the processor 401 executes the program stored in the memory 402 to implement the following steps:

[0077] Sending a modulated signal to a radio frequency front end unit via at least one of the baseband modulated digital paths;

[0078] Sending a control signal to the RF front-end unit, the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm. Or,

[0079] Acquire a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path;

[0080] The target DPD parameters corresponding to the target communication parameters in the control signal are called, and the DPD algorithm is configured based on the target DPD parameters, and the output of the modulated signal is calibrated according to the configured DPD algorithm.

[0081] The communication bus 403 mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 403 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0082] The memory 402 may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the processor 401 .

[0083] The above-mentioned processor 401 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc., and can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0084] In another embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed on a computer, the computer executes the control method of the multi-carrier base station described in the above embodiment.

[0085] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction is transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape, etc.), an optical medium (e.g., a DVD) or a semiconductor medium (e.g., a solid-state hard disk), etc.

[0086] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0087] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A multi-carrier base station, characterized in that: include: A baseband unit, a radio frequency front end unit and a plurality of baseband modulation digital paths, wherein two ends of each baseband modulation digital path are respectively connected to the baseband unit and the radio frequency front end unit; The baseband unit is used to send a modulation signal to the RF front-end unit through at least one of the baseband modulation digital paths, and to send a control signal to the RF front-end unit, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path; The RF front-end unit is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

2. The multi-carrier base station according to claim 1, characterized in that: The baseband unit includes a baseband control module, the RF front-end unit includes a DPD module and a power amplifier, the two ends of each baseband modulation digital path are respectively connected to the baseband control module and the DPD module, and the DPD module is connected to the power amplifier; The DPD module is used to obtain the target transmit power, synthesize the modulated signal to the power amplifier based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

3. A control method for a multi-carrier base station, characterized in that: The method applied to the baseband unit in the multi-carrier base station according to claim 1 or 2 comprises: Sending a modulated signal to a radio frequency front end unit via at least one of the baseband modulated digital paths; A control signal is sent to the RF front-end unit, wherein the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

4. A control method for a multi-carrier base station, characterized in that: The method applied to the radio frequency front end unit in the multi-carrier base station according to claim 1 or 2 comprises: Acquire a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used to indicate a target communication parameter of a carrier in the baseband modulation digital path; The target DPD parameters corresponding to the target communication parameters in the control signal are called, and the DPD algorithm is configured based on the target DPD parameters, and the output of the modulated signal is calibrated according to the configured DPD algorithm.

5. The control method of a multi-carrier base station according to claim 4, characterized in that: Calling a target DPD parameter corresponding to a target communication parameter in the control signal includes: Obtaining a mapping relationship between pre-established communication parameters and DPD parameters; A target DPD parameter corresponding to the target communication parameter is determined from the mapping relationship.

6. The control method of a multi-carrier base station according to claim 4, characterized in that: The baseband unit includes a baseband control module, the RF front-end unit includes a DPD module and a power amplifier, the two ends of each baseband modulation digital path are respectively connected to the baseband control module and the DPD module, and the DPD module is connected to the power amplifier; The modulated signal is output calibrated according to the configured DPD algorithm, including: Obtain the target transmit power, synthesize the modulated signal to the power amplifier of the RF front end based on the DPD algorithm, and loop the output of the power amplifier back to the DPD module for closed-loop verification to calibrate the transmit power of the power amplifier to the target transmit power.

7. A control device for a multi-carrier base station, characterized in that: The baseband unit used in the multi-carrier base station according to claim 1 or 2 comprises: A first sending module, used for sending a modulated signal to a radio frequency front end unit through at least one baseband modulation digital path; The second sending module is used to send a control signal to the RF front-end unit, where the control signal is used to indicate the target communication parameters of the carrier in the baseband modulation digital path; so that the RF front-end unit calls the target DPD parameters corresponding to the target communication parameters in the control signal, configures the DPD algorithm based on the target DPD parameters, and performs output calibration on the modulated signal according to the configured DPD algorithm.

8. A control device for a multi-carrier base station, characterized in that: The radio frequency front end unit used in the multi-carrier base station according to claim 1 or 2 comprises: An acquisition module, used for acquiring a modulation signal and a control signal sent by a baseband unit through at least one of the baseband modulation digital paths, wherein the control signal is used for indicating a target communication parameter of a carrier in the baseband modulation digital path; The output module is used to call the target DPD parameters corresponding to the target communication parameters in the control signal, configure the DPD algorithm based on the target DPD parameters, and perform output calibration on the modulated signal according to the configured DPD algorithm.

9. An electronic device, characterized in that: include: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; The memory is used to store computer programs; The processor is used to execute the program stored in the memory to implement the control method of the multi-carrier base station according to any one of claims 3 to 6.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the control method of the multi-carrier base station according to any one of claims 3 to 6 is implemented.

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