Base station control method and communication equipment

Abstract

The embodiment of the invention provides a base station control method and communication equipment, and belongs to the technical field of communication. The method comprises the steps that a frequency domain signal to be processed is received, signal extraction and signal conversion are carried out on the frequency domain signal, and the signal extraction and the signal conversion are executed synchronously; obtaining a signal voltage corresponding to the frequency domain signal according to the signal extraction, and obtaining a time domain signal after the frequency domain signal conversion according to the signal conversion; and controlling a power amplifier in the base station to amplify the time domain signal according to the signal voltage to obtain a target signal, and executing a preset signal transmission operation on the target signal. According to the technical scheme provided by the embodiment of the invention, the working voltage of the power amplifier can be adjusted in time, so that the working voltage of the power amplifier adapts to the signal voltage of the input time domain signal, and the effect of reducing the power consumption of the base station is realized.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a base station control method and communication equipment. Background Art

[0002] In existing base stations, most of the power is consumed by the Remote Radio Unit (RRU), and most of the power of the RRU is consumed by the power amplifier (PA) in the RRU. Therefore, the key to controlling the power consumption of the base station lies in controlling the power consumption of the power amplifier in the RRU.

[0003] The operating voltage of the power amplifier in the RRU depends on the size of the signal to be processed. In the existing power amplifier voltage adjustment method, the power of the power amplifier can be adjusted according to the manually set power parameters. However, this method cannot adjust the working voltage of the power amplifier according to the signal size, and has poor flexibility. In the prior art, the subsequent signal size can also be predicted based on the average signal size of the historical time period, and then the working voltage of the power amplifier can be adjusted according to the predicted signal size. However, this method can only predict the power size within a longer period, and the effect is poor when the signal power size fluctuates greatly. Summary of the invention

[0004] The embodiments of the present invention provide a base station control method and a communication device, aiming to reduce the power consumption of the base station.

[0005] In a first aspect, an embodiment of the present invention provides a base station control method, including:

[0006] Receiving a frequency domain signal to be processed, and performing signal extraction on the frequency domain signal and signal conversion on the frequency domain signal, wherein the signal extraction and the signal conversion are performed synchronously;

[0007] Extract the signal to obtain a signal voltage corresponding to the frequency domain signal according to the signal, and convert the signal to obtain a time domain signal after the frequency domain signal is converted;

[0008] A power amplifier in the base station is controlled according to the signal voltage to amplify the time domain signal to obtain a target signal, and a preset signal transmission operation is performed on the target signal.

[0009] In a second aspect, an embodiment of the present invention further provides a communication device, comprising a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing a connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any base station control method provided in the embodiments of the present invention are implemented.

[0010] The embodiment of the present invention provides a base station control method and communication equipment, which receives a frequency domain signal to be processed, and performs signal extraction and signal conversion on the frequency domain signal, wherein the signal extraction and the signal conversion are performed synchronously; the signal voltage corresponding to the frequency domain signal is obtained according to the signal extraction, and the time domain signal after the frequency domain signal conversion is obtained according to the signal conversion; the power amplifier in the base station is controlled to amplify the time domain signal according to the signal voltage to obtain a target signal, and a preset signal transmission operation is performed on the target signal. The embodiment of the present invention calculates the signal voltage of the frequency domain signal in real time to determine the working voltage required for the power amplifier to amplify the time domain signal, so as to timely adjust the working voltage of the power amplifier so that the working voltage of the power amplifier is adapted to the signal voltage of the input time domain signal, thereby achieving the effect of reducing the power consumption of the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention;

[0012] Figure 2 A schematic diagram of a base station control method according to an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of a scenario for converting a signal provided by an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of a scenario of a base station control method provided by an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of a scenario of a base station control method provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of a signal voltage transmission method provided by an embodiment of the present invention;

[0017] Figure 7 A schematic diagram of a scenario for transmitting a signal voltage provided by an embodiment of the present invention;

[0018] Figure 8 A schematic block diagram of a sub-step implementation process of a base station control method provided by an embodiment of the present invention;

[0019] Fig. 9 A schematic block diagram of the structure of a base station control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0022] It should be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0023] The embodiment of the present invention provides a base station control method and a communication device. The base station control method can be applied to a base station device, including but not limited to an LTE base station under a 4G standard and an NR base station under a 5G standard.

[0024] Please refer to Figure 1 , Figure 1 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention.

[0025] like Figure 1 As shown, the base station equipment usually includes a baseband processing unit (Base Band Unit, abbreviated as BBU) and a remote radio unit (Remote Radio Unit, RRU), and the RRU and BBU are connected by optical fiber. One BBU can be connected to multiple RRUs, and the number of RRUs is not limited here. Among them, the RRU is used to process the radio frequency signal and transmit it through the antenna after amplification by the power amplifier. Therefore, the RRU is a unit with relatively high power consumption in the base station equipment, and the power of the RRU is mainly consumed by the power amplifier in the RRU. According to statistics, the RRU consumes about 90% of the power of the base station, and the power consumption of the power amplifier in the RRU accounts for about 80% of the RRU.

[0026] Exemplarily, the power consumption of the power amplifier depends on the operating voltage, and the operating voltage required by the power amplifier is determined by the size of the input signal. The larger the input signal, the higher the required operating voltage, and the greater the power consumption of the power amplifier. The base station control method provided in the embodiment of the present application can adjust the operating voltage of the power amplifier in the RRU in real time according to the size of the input signal, reduce the energy consumption of the RRU, and thus reduce the energy consumption of the entire base station.

[0027] In mobile communication technology, data is transmitted on a wireless network in frames. Taking LTE and NR as examples, the duration of a wireless frame is usually 10ms, and a wireless frame includes multiple subframes, and the duration of a subframe is usually 1ms. A subframe can also be divided into multiple slot periods. For example, in LTE, a subframe includes two slot periods; while in NR, the number of slot periods in a subframe is determined by a parameter; specifically, according to the parameter values ​​0, 1, 2, 3, 4, a subframe can include 1, 2, 4, 8, 16 slot periods. The slot period is composed of symbol periods. A slot period can include 14 or 12 symbol periods according to actual conditions. Therefore, the duration of the symbol period is usually calculated in μs, and the existing power amplifier voltage regulation technology is usually unable to adjust the power amplifier voltage at the level of symbol period (e.g. 35μs) or even slot period (e.g. 0.5ms).

[0028] For example, in a time division duplexing (TDD) system, the switching characteristics of the TDD system between upload (UL) and download (DL) can be used to adjust the working voltage of the power amplifier, such as calculating the voltage of the signal in the next DL time slice in the UL time slice, so as to adjust the working voltage of the power amplifier according to the voltage of the signal in the signal cycle of the subsequent DL time slice. However, this method can only adjust the working voltage of the power amplifier based on the duration of ms, such as adjusting the working voltage with a period of 10ms, and it cannot be applied to the frequency division system, and has poor flexibility.

[0029] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] Please refer to Figure 2 , Figure 2 A schematic flowchart of the steps of a base station control method provided by an embodiment of the present invention.

[0031] like Figure 2 As shown, the base station control method includes steps S101 to S103.

[0032] Exemplarily, the base station control method provided in the embodiment of the present application may be implemented in the RRU, or some steps may be respectively set in the BBU and the RRU for implementation according to actual conditions, which is not limited here.

[0033] Step S101: receiving a frequency domain signal to be processed, and performing signal extraction and signal conversion on the frequency domain signal, wherein the signal extraction and the signal conversion are performed synchronously.

[0034] Exemplarily, the base station uses orthogonal frequency division multiplexing (OFDM) technology to process the carrier signal.

[0035] Please refer to Figure 3 , Figure 3 A schematic diagram of a scenario for converting a signal provided by an embodiment of the present invention.

[0036] like Figure 3 As shown, the frequency domain signal within the symbol period includes multiple subcarriers (Resource Element, RE). Before signal amplification, the frequency domain signal is subjected to an inverse fast Fourier transform (IFFT) to obtain multiple time domain sample points of the time domain signal within the symbol period, so that the processed time domain signal can be subsequently transmitted through the antenna.

[0037] For example, due to the difference in the amount of data in different symbol periods or different time slot periods, the energy values ​​of the frequency domain signals and time domain signals in different symbol periods or different time slot periods are also different. Therefore, the operating voltage required for the power amplifier to amplify the signals in different symbol periods or different time slot periods is also different.

[0038] Step S102: extracting the signal to obtain a signal voltage corresponding to the frequency domain signal, and converting the signal to obtain a time domain signal after the frequency domain signal is converted.

[0039] For example, according to Parseval's theorem, the energy of the frequency domain signal before conversion is equal to the energy of the time domain signal after conversion. Therefore, the energy value of the frequency domain signal can be obtained by performing signal extraction on the frequency domain signal, thereby obtaining the signal voltage of the corresponding time domain signal, so as to determine the operating voltage required for the power amplifier to process the time domain signal.

[0040] Exemplarily, since the process of converting the frequency domain signal to obtain the time domain signal and the process of determining the signal voltage of the time domain signal are performed synchronously, the base station control method provided in the embodiment of the present application can determine the signal voltage of the time domain signal before or at the same time as obtaining the time domain signal to be sent, thereby solving the problem of signal voltage detection lag in the prior art.

[0041] For example, if it takes one symbol period to perform IFFT to obtain a time domain signal, the base station control method provided in the embodiment of the present application can obtain the signal voltage of the time domain signal one symbol period in advance.

[0042] In some embodiments, the signal voltage corresponding to the frequency domain signal is obtained according to the signal extraction, including: the signal period of the frequency domain signal is a symbol period, based on a preset symbol analysis algorithm, determining a first voltage corresponding to the frequency domain signal within the symbol period, and using the first voltage as the signal voltage; wherein the first voltage is the voltage required by the power amplifier when amplifying the time domain signal, and the time domain signal is obtained by converting the frequency domain signal within the symbol period.

[0043] Exemplarily, since signal extraction and signal conversion are performed synchronously in the base station control method provided in the embodiment of the present application, the signal voltage can be acquired within a symbol period of μs to obtain a first voltage corresponding to the frequency domain signal within the symbol period.

[0044] Exemplarily, the process of calculating the signal voltage based on the symbol period may be performed on the RRU or on the BBU, which is not limited here.

[0045] Exemplarily, since the process of converting the frequency domain signal to obtain the time domain signal and the process of determining the signal voltage of the time domain signal are performed synchronously, the signal voltage of the time domain signal can be determined in the symbol period, and then the operating voltage of the power amplifier can be adjusted in the symbol period, thereby solving the problem of signal voltage detection lag in the prior art.

[0046] Exemplarily, the first voltage is an operating voltage required by the power amplifier to amplify the time domain signal within a symbol period.

[0047] In some embodiments, based on a preset symbol analysis algorithm, determining the first voltage corresponding to the frequency domain signal within the symbol period, and using the first voltage as the signal voltage, includes: determining the first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal within the symbol period based on the energy values ​​of the first orthogonal signal and the second orthogonal signal in the frequency domain signal within the symbol period.

[0048] Exemplarily, the frequency domain signal can be obtained by orthogonalizing multiple orthogonal signals. According to Parseval's theorem, the sum of the energy values ​​of the multiple orthogonal signals is equal to the energy value of the frequency domain signal. Therefore, the energy value of the frequency domain signal can be determined based on the sum of the energy values ​​of the orthogonal signals in the frequency domain signal, and then the first voltage of the time domain signal can be determined.

[0049] Exemplarily, the frequency domain signal includes a first orthogonal signal and a second orthogonal signal, but is certainly not limited thereto and may include more orthogonal signals, which are not limited here.

[0050] Taking the frequency domain signal including the first orthogonal signal I and the second orthogonal signal Q as an example, the first voltage can be determined based on the following method: obtaining the number of Fourier transform points Nfft of the signal conversion, adding 0 to the frequency domain data within the symbol period to obtain the I and Q signals at the Nfft points, and obtaining the single point energy I of the signal 2 +Q 2 , and summing the Nfft single point energies:

[0051]

[0052] Then the obtained energy value E is right-shifted by 2×log2Nfft bits to obtain the power value of the frequency domain signal within the symbol period.

[0053] In some embodiments, the preset symbol analysis algorithm is used to determine the first voltage corresponding to the frequency domain signal within the symbol period, and the first voltage is used as the signal voltage, including: according to the resource block occupancy ratio in the frequency domain signal, determining the first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal within the symbol period.

[0054] Exemplarily, in OFDM, wireless signals are divided into resource blocks (RBs), and the number of non-zero resource blocks in the frequency domain signal can also be used to determine the energy value of the frequency domain signal. Therefore, the magnitude of the first voltage can also be determined according to the resource block occupancy ratio. The resource block ratio is calculated according to the number of non-zero RBs in the frequency domain signal. Specifically, the ratio of the number of non-zero RBs in the frequency domain signal to the total number of RBs specified in the 3Gpp protocol is used as the resource block ratio.

[0055] Exemplarily, the square of the resource block ratio is multiplied by the rated carrier power value to obtain the energy value of the frequency domain signal; wherein the rated carrier power value can be set according to the actual situation. Alternatively, the energy value of the frequency domain signal is directly determined according to the correspondence between the preset resource block occupancy ratio and the energy value. Of course, it is not limited to this and is not limited here.

[0056] In some embodiments, the signal voltage corresponding to the frequency domain signal is obtained according to the signal extraction, including: the signal period of the frequency domain signal is a time slot period, and the time slot period includes multiple symbol periods, and the second voltages of the frequency domain signal in the multiple symbol periods are determined respectively; based on each of the second voltages, the third voltage of the frequency domain signal in the time slot period is determined, and the third voltage is used as the signal voltage.

[0057] For example, if the signal voltage is calculated based on the time slot cycle on the RRU, a certain delay will be caused. Therefore, the base station control method improved in the implementation mode of the present application executes the process of calculating the signal voltage based on the time slot cycle on the BBU, and the BBU sends the calculated third voltage as the signal voltage to the corresponding RRU.

[0058] Exemplarily, since a time slot period is composed of multiple symbol periods, in order to calculate the third voltage of the frequency domain signal in the time slot period, it is necessary to first determine the second voltage of the frequency domain signal in multiple symbol periods. Specifically, the method for calculating the second voltage can refer to the method for calculating the first voltage, which will not be described in detail here.

[0059] Exemplarily, based on the second voltages corresponding to a plurality of symbol periods in a time slot period, the third voltage corresponding to the frequency domain signal in the time slot period can be determined.

[0060] Exemplarily, the second voltage is the operating voltage required by the power amplifier to amplify the time domain signal within the symbol period, and the third voltage is the operating voltage required by the power amplifier to amplify the time domain signal within the time slot period.

[0061] In some embodiments, determining the third voltage of the frequency domain signal within the time slot period based on each of the second voltages, and using the third voltage as the signal voltage includes: determining a maximum second voltage based on each of the second voltages; and determining the value of the maximum second voltage as the third voltage within the time slot period.

[0062] Exemplarily, in order to ensure the signal amplification effect of the power amplifier, when the power amplifier performs an amplification operation based on a predetermined signal voltage, it can have a good amplification effect on the frequency domain signals of each symbol period within a time slot period, and the maximum value of the second voltages corresponding to multiple symbol periods is used as the third voltage of the time slot period, so that the power amplifier has a better amplification effect.

[0063] In some embodiments, determining the third voltage of the frequency domain signal within the time slot period based on each of the second voltages, and using the third voltage as the signal voltage includes: determining an average second voltage based on each of the second voltages; and determining the value of the average second voltage as the third voltage within the time slot period.

[0064] Exemplarily, in order to avoid unnecessary power consumption of the power amplifier, that is, to avoid the operating voltage of the power amplifier being greater than the voltage required by the frequency domain signal within the symbol period when the power amplifier performs an amplification operation based on a predetermined signal voltage, the average value of the second voltages corresponding to multiple symbol periods is used as the third voltage of the time slot period, thereby achieving the effect of reducing the power consumption of the base station.

[0065] Step S103: Control a power amplifier in the base station according to the signal voltage to amplify the time domain signal to obtain a target signal, and perform a preset signal transmission operation on the target signal.

[0066] For example, since the operating voltage of the power amplifier depends on the signal voltage of the time domain signal to be amplified, in the related art, in order to prevent the situation where the operating voltage of the power amplifier is insufficient to amplify the time domain, a higher operating voltage is usually set for the power amplifier, resulting in unnecessary waste.

[0067] The base station control method provided in the embodiment of the present application controls the operating voltage of the power amplifier according to the signal voltage obtained in step S102, so that the operating voltage of the power amplifier is adapted to the signal voltage of the time domain signal to be amplified, thereby avoiding power waste and reducing the energy consumption of the base station.

[0068] Exemplarily, controlling a power amplifier in a base station to amplify the time domain signal according to the signal voltage may be to directly use the signal voltage as an operating voltage of the power amplifier.

[0069] Alternatively, since the value of the signal voltage is usually small, it is impossible to directly accurately adjust the working voltage of the power amplifier according to the signal voltage. It is also possible to determine the working voltage corresponding to the signal voltage based on the preset corresponding relationship between the signal voltage and the working voltage, and then control the power amplifier to amplify the time domain signal based on the working voltage. Specifically, multiple working voltage values ​​V1, V2, ..., V corresponding to the signal voltage range are pre-set. n After calculating the signal voltage of the frequency domain signal, the corresponding working voltage value can be determined according to the range of the signal voltage.

[0070] In some embodiments, controlling a power amplifier in a base station to amplify the time domain signal to obtain a target signal according to the signal voltage includes: adjusting the operating voltage of the power amplifier based on a preset delay duration according to the signal voltage, so that during the period when the power amplifier amplifies the time domain signal to obtain the target signal, the operating voltage of the power amplifier is the signal voltage.

[0071] Exemplarily, since the base station control method provided in the embodiment of the present application can calculate the signal voltage required for the power amplifier to amplify the time domain signal before the signal conversion is completed, after calculating the working voltage, it is necessary to wait for a certain delay time and then adjust the working voltage of the power amplifier to the signal voltage, so that in the process of amplifying the time domain signal, the working voltage of the power amplifier is exactly the signal voltage corresponding to the time domain signal.

[0072] Exemplarily, the delay time can be set according to actual conditions. Specifically, the time difference between the first time required for the frequency domain signal to be converted into a time domain signal and input into the power amplifier and the second time required for extracting the frequency domain signal to obtain the signal voltage can be calculated, and the time difference is used as the delay time. Of course, it is not limited to this and is not limited here.

[0073] Please refer to Figure 4 , 5 , Figure 4 , 5 A schematic diagram of a scenario of a base station control method provided by an embodiment of the present invention.

[0074] like Figure 4 , 5 As shown, after the frequency domain signal is converted into a time domain signal by Fourier transform (Fast Fourier Transform, FFT), it also needs to be processed by a digital up converter (Digital Up Converter, DUC) module, a crest factor reduction (Crest Factor Reduction, CFR) module, a digital pre-distortion (Digital Pre-Distortion, DPD) module, a radio frequency (Radio Frequency, RF) module and other modules, and then amplified by a power amplifier (Power Amplifier, PA). Therefore, after the signal voltage of the frequency domain signal is calculated through signal extraction, it is necessary to wait for the data processing time before setting the working voltage of the power amplifier to the signal voltage of the frequency domain signal; wherein, the waiting time for data processing can be set to the delay time, and the working voltage of the power amplifier is adjusted according to the signal voltage based on the preset delay time, so that the working voltage of the power amplifier is the signal voltage during the period when the power amplifier amplifies the time domain signal to obtain the target signal.

[0075] like Figure 4 As shown, the process of extracting the frequency domain signal to obtain the signal voltage can be implemented in the RRU. Specifically, the frequency domain signal within the symbol period can be extracted in the RRU to obtain the signal voltage of the frequency domain signal within the symbol period.

[0076] like Figure 5 As shown, the process of extracting the frequency domain signal to obtain the signal voltage can also be implemented in the BBU. Specifically, the frequency domain signal within the symbol period or the time slot period can be extracted in the BBU to obtain the signal voltage of the frequency domain signal within the symbol period or the time slot period.

[0077] For example, Figure 5 , 6 The signal voltage in the signal voltage can be transmitted through a bit width value, for example, a 10-bit parameter is defined to transmit the signal voltage between the BBU and the RRU, or to transmit the signal voltage within the RRU.

[0078] Exemplarily, the signal voltage may be transmitted together with the time domain signal to be processed, for example, a parameter for representing the signal voltage may be inserted before the first sample point or after the last sample point of the time domain signal.

[0079] Please refer to Figure 6 , Figure 6 A schematic diagram of a signal voltage transmission method provided by an embodiment of the present invention.

[0080] like Figure 6 As shown, the signal voltage can also be transmitted in the form of a message, for example, using the enhanced Common Public Radio Interface (eCPRI) message encapsulation format, and using the MsgType+PCID field in the eCPRI Header field to indicate which antenna's signal voltage is the load in the message.

[0081] Please refer to Figure 7 , Figure 7 A schematic diagram of a scenario for transmitting a signal voltage provided by an embodiment of the present invention.

[0082] Exemplarily, after waiting for the delay time, adjusting the operating voltage of the power amplifier to the signal voltage may be implemented by a trigger. Figure 7As shown, when the base station control method provided in the embodiment of the present application is implemented based on FPGA or ASIC, the delay can be achieved by multiple D flip-flops connected in sequence. The direction of the arrow is used to indicate the direction of instruction transmission, and the instruction is used to adjust the voltage of the power amplifier to the signal voltage obtained by signal extraction of the frequency domain signal.

[0083] Exemplarily, after waiting for the delay time, adjusting the operating voltage of the power amplifier to the signal voltage can also be achieved through a buffer. When the base station control method provided in the embodiment of the present application is implemented based on FPGA, ASIC, CPU, and DSP, the signal voltage can be written into a RAM buffer, so that the processor reads the voltage information from the RAM buffer after waiting for the preset time.

[0084] Of course, it is not limited to this. After waiting for the delay time, adjusting the operating voltage of the power amplifier to the signal voltage can also be achieved by resampling the information. Specifically, when the base station control method provided in the embodiment of the present application is implemented based on FPGA or ASIC, the delay time T can be indicated for the signal voltage information to control the processor to wait for the delay time T and then resample the signal voltage information.

[0085] In some embodiments, the frequency domain signal includes multiple frequency domain sub-signals, and extracting the signal voltage corresponding to the frequency domain signal based on the signal also includes: determining the frequency domain sub-signal belonging to the frequency domain signal based on the antenna identifier corresponding to the frequency domain sub-signal, and determining the target power amplifier corresponding to the frequency domain signal; determining the fourth voltage corresponding to each of the frequency domain sub-signals based on a preset sub-signal extraction algorithm; and summing the fourth voltages of each of the frequency domain sub-signals in the frequency domain signal to obtain the corresponding signal voltage of the frequency domain signal.

[0086] For example, in the field of communications, in order to improve signal transmission efficiency, multiple sub-signals are usually mapped to one antenna through multiplexing technology, and the multiple sub-signals are synthesized into one signal, which is transmitted by the corresponding antenna, so that the signal transmitted by one physical antenna contains multiple carrier signals. In this case, the power amplifier needs to process the synthesized signal, and after the sub-signal is mapped to its corresponding antenna, the power amplifier that needs to process the signal obtained by synthesizing the sub-signal can be determined.

[0087] Exemplarily, according to Parseval's theorem, the energy value of the synthesized signal is equal to the sum of the energy values ​​of multiple sub-signals. Therefore, the target power amplifier that needs to amplify the frequency domain signal synthesized from the frequency domain sub-signal can be determined based on the antenna identifier of the antenna to which the frequency domain sub-signal is mapped, and then the fourth voltages of the multiple frequency domain sub-signals corresponding to the same target power amplifier are summed to obtain the signal voltage of the synthesized frequency domain signal.

[0088] Exemplarily, when summing the fourth voltages of multiple frequency domain sub-signals corresponding to the same target power amplifier, each of the fourth voltages can be multiplied by a corresponding routing parameter and / or a weighted adjustment parameter. The values ​​of the routing parameters and / or weighted adjustment parameters can be set according to actual conditions and are not limited here.

[0089] Exemplarily, the fourth voltage is the operating voltage required by the power amplifier to amplify the time domain signal corresponding to the frequency domain sub-signal within a signal period (which may be a time slot period or a symbol period).

[0090] Please refer to Figure 8 , Figure 8 A schematic block diagram of a sub-step implementation process of a base station control method provided in an embodiment of the present invention.

[0091] like Figure 8 As shown, the first frequency domain sub-signal and the second frequency domain sub-signal are mapped to antenna 1, and the fourth voltage 1 corresponding to the first frequency domain sub-signal and the fourth voltage 2 corresponding to the second frequency domain sub-signal are added to obtain the signal voltage 1 corresponding to antenna 1, which is also the operating voltage required by the target power amplifier connected to antenna 1; similarly, the third frequency domain sub-signal and the fourth frequency domain sub-signal are mapped to antenna 2, and the fourth voltage 3 corresponding to the third frequency domain sub-signal and the fourth voltage 4 corresponding to the fourth frequency domain sub-signal are added to obtain the signal voltage 2 corresponding to antenna 2, which is also the operating voltage required by the target power amplifier connected to antenna 2, and so on.

[0092] Exemplarily, the above steps S101 to S103 may be implemented in the RRU, where the RRU directly performs signal extraction to determine the signal voltage and controls the operating voltage of the power amplifier in the RRU according to the signal voltage; or the above steps S101 to S102 may be implemented in the BBU, and step S103 may be implemented in the RRU, where the BBU performs signal extraction to determine the signal voltage, and then sends the signal voltage to the corresponding RRU, so that the RRU controls the operating voltage of the power amplifier therein according to the signal voltage. This is not limited here.

[0093] See also Fig. 9 , Fig. 9 A schematic block diagram of the structure of a communication device provided in an embodiment of the present invention.

[0094] like Fig. 9 As shown, the communication device 300 includes a processor 301 and a memory 302 , and the processor 301 and the memory 302 are connected via a bus 303 , such as an I2C (Inter-integrated Circuit) bus.

[0095] Specifically, the processor 301 is used to provide computing and control capabilities to support the operation of the entire communication device. The processor 301 can be a central processing unit (CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0096] Specifically, the memory 302 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.

[0097] Those skilled in the art will understand that Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation on the communication device to which the embodiment of the present invention is applied. The specific communication device may include more or less components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0098] The processor is used to run a computer program stored in the memory, and implement any one of the base station control methods provided by the embodiments of the present invention when executing the computer program.

[0099] In one embodiment, the processor is used to run a computer program stored in the memory, and implements the following steps when executing the computer program:

[0100] Receiving a frequency domain signal to be processed, and performing signal extraction on the frequency domain signal and signal conversion on the frequency domain signal, wherein the signal extraction and the signal conversion are performed synchronously;

[0101] Extract the signal to obtain a signal voltage corresponding to the frequency domain signal according to the signal, and convert the signal to obtain a time domain signal after the frequency domain signal is converted;

[0102] A power amplifier in the base station is controlled according to the signal voltage to amplify the time domain signal to obtain a target signal, and a preset signal transmission operation is performed on the target signal.

[0103] In one embodiment, when the processor extracts the signal voltage corresponding to the frequency domain signal according to the signal, it is used to implement:

[0104] The signal period of the frequency domain signal is a symbol period, and based on a preset symbol analysis algorithm, a first voltage corresponding to the frequency domain signal in the symbol period is determined, and the first voltage is used as the signal voltage;

[0105] The first voltage is the voltage required by the power amplifier when amplifying the time domain signal, and the time domain signal is obtained by converting the frequency domain signal within the symbol period.

[0106] In one embodiment, when the processor implements the preset symbol analysis algorithm to determine the first voltage corresponding to the frequency domain signal in the symbol period and uses the first voltage as the signal voltage, it is used to implement:

[0107] According to energy values ​​of the first orthogonal signal and the second orthogonal signal in the frequency domain signal in the symbol period, a first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal in the symbol period is determined.

[0108] In one embodiment, when the processor implements the preset symbol analysis algorithm to determine the first voltage corresponding to the frequency domain signal in the symbol period and uses the first voltage as the signal voltage, it is used to implement:

[0109] A first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal within the symbol period is determined according to the resource block occupancy ratio in the frequency domain signal.

[0110] In one embodiment, when the processor extracts the signal voltage corresponding to the frequency domain signal according to the signal, it is used to implement:

[0111] The signal period of the frequency domain signal is a time slot period, and the time slot period includes a plurality of symbol periods, and the second voltages of the frequency domain signal in the plurality of symbol periods are determined respectively;

[0112] A third voltage of the frequency domain signal in the time slot period is determined according to each of the second voltages, and the third voltage is used as the signal voltage.

[0113] In one embodiment, when the processor implements determining the third voltage of the frequency domain signal in the time slot period according to each of the second voltages and using the third voltage as the signal voltage, it is configured to implement:

[0114] determining a maximum second voltage according to each of the second voltages;

[0115] The value of the maximum second voltage is determined as the third voltage within the time slot period.

[0116] In one embodiment, when the processor implements determining the third voltage of the frequency domain signal in the time slot period according to each of the second voltages and using the third voltage as the signal voltage, it is configured to implement:

[0117] determining an average second voltage based on each of the second voltages;

[0118] The value of the average second voltage is determined as the third voltage within the time slot period.

[0119] In one embodiment, when the processor controls the power amplifier in the base station to amplify the time domain signal according to the signal voltage to obtain the target signal, it is used to implement:

[0120] The operating voltage of the power amplifier is adjusted according to the signal voltage based on a preset delay time, so that during the period when the power amplifier amplifies the time domain signal to obtain the target signal, the operating voltage of the power amplifier is the signal voltage.

[0121] In one embodiment, when the processor realizes that the frequency domain signal includes a plurality of frequency domain sub-signals, and the signal voltage corresponding to the frequency domain signal is obtained according to the signal extraction, it is used to implement:

[0122] Determine the frequency domain sub-signal belonging to the frequency domain signal according to the antenna identifier corresponding to the frequency domain sub-signal, and determine the target power amplifier corresponding to the frequency domain signal;

[0123] Determine, based on a preset sub-signal extraction algorithm, a fourth voltage corresponding to each of the frequency domain sub-signals;

[0124] The fourth voltages of the frequency domain sub-signals in the frequency domain signal are summed to obtain a corresponding signal voltage of the frequency domain signal.

[0125] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the communication device described above can refer to the corresponding process in the aforementioned base station control method embodiment, and will not be repeated here.

[0126] An embodiment of the present invention also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any base station control method provided in the embodiment of the present invention.

[0127] The storage medium may be an internal storage unit of the communication device described in the above embodiment, such as a hard disk or memory of the communication device. The storage medium may also be an external storage device of the communication device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. equipped on the communication device.

[0128] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0129] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A base station control method, characterized in that: The method comprises: Receiving a frequency domain signal to be processed, and performing signal extraction on the frequency domain signal and signal conversion on the frequency domain signal, wherein the signal extraction and the signal conversion are performed synchronously; Extract the signal to obtain a signal voltage corresponding to the frequency domain signal according to the signal, and convert the signal to obtain a time domain signal after the frequency domain signal is converted; A power amplifier in the base station is controlled according to the signal voltage to amplify the time domain signal to obtain a target signal, and a preset signal transmission operation is performed on the target signal.

2. The base station control method according to claim 1, characterized in that: The step of obtaining a signal voltage corresponding to the frequency domain signal according to the signal extraction includes: The signal period of the frequency domain signal is a symbol period, and based on a preset symbol analysis algorithm, a first voltage corresponding to the frequency domain signal in the symbol period is determined, and the first voltage is used as the signal voltage; The first voltage is the voltage required by the power amplifier when amplifying the time domain signal, and the time domain signal is obtained by converting the frequency domain signal within the symbol period.

3. The base station control method according to claim 2, characterized in that: The determining, based on a preset symbol analysis algorithm, a first voltage corresponding to the frequency domain signal within the symbol period, and using the first voltage as the signal voltage comprises: According to energy values ​​of the first orthogonal signal and the second orthogonal signal in the frequency domain signal in the symbol period, a first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal in the symbol period is determined.

4. The base station control method according to claim 2, characterized in that: The determining, based on a preset symbol analysis algorithm, a first voltage corresponding to the frequency domain signal within the symbol period, and using the first voltage as the signal voltage, comprises: A first voltage required for the power amplifier to amplify the time domain signal obtained by converting the frequency domain signal within the symbol period is determined according to the resource block occupancy ratio in the frequency domain signal.

5. The base station control method according to claim 1, characterized in that: The step of obtaining a signal voltage corresponding to the frequency domain signal according to the signal extraction includes: The signal period of the frequency domain signal is a time slot period, and the time slot period includes a plurality of symbol periods, and the second voltages of the frequency domain signal in the plurality of symbol periods are determined respectively; A third voltage of the frequency domain signal in the time slot period is determined according to each of the second voltages, and the third voltage is used as the signal voltage.

6. The base station control method according to claim 5, characterized in that: The step of determining a third voltage of the frequency domain signal in the time slot period according to each of the second voltages, and using the third voltage as the signal voltage, comprises: determining a maximum second voltage according to each of the second voltages; The value of the maximum second voltage is determined as the third voltage within the time slot period.

7. The base station control method according to claim 5, characterized in that: The step of determining a third voltage of the frequency domain signal in the time slot period according to each of the second voltages, and using the third voltage as the signal voltage, comprises: determining an average second voltage based on each of the second voltages; The value of the average second voltage is determined as the third voltage within the time slot period.

8. The base station control method according to any one of claims 1 to 7, characterized in that: The step of controlling a power amplifier in a base station to amplify the time domain signal according to the signal voltage to obtain a target signal includes: The operating voltage of the power amplifier is adjusted according to the signal voltage based on a preset delay time, so that the operating voltage of the power amplifier is the signal voltage during the period when the power amplifier amplifies the time domain signal to obtain the target signal.

9. The base station control method according to any one of claims 1 to 7, characterized in that: The frequency domain signal includes a plurality of frequency domain sub-signals, and the signal voltage corresponding to the frequency domain signal is obtained by extracting the signal, further comprising: Determine the frequency domain sub-signal belonging to the frequency domain signal according to the antenna identifier corresponding to the frequency domain sub-signal, and determine the target power amplifier corresponding to the frequency domain signal; Determine, based on a preset sub-signal extraction algorithm, a fourth voltage corresponding to each of the frequency domain sub-signals; The fourth voltages of the frequency domain sub-signals in the frequency domain signal are summed to obtain a corresponding signal voltage of the frequency domain signal.

10. A communication device, characterized in that: The communication device includes a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the base station control method as described in any one of claims 1 to 9 are implemented.

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