Configurable dynamic frequency selection device and method

Abstract

The invention provides a configurable dynamic frequency selection device and method. The device comprises a frequency conversion control sub-module, a frequency conversion parameter calculation sub-module and a frequency conversion sub-module. The frequency conversion control sub-module obtains frequency conversion configuration parameters, controls frequency conversion starting and writes frequency conversion parameters into the frequency conversion sub-module; the frequency conversion parameter calculation sub-module calculates frequency conversion parameters according to the frequency conversion configuration parameters and feeds back the frequency conversion parameters; and the frequency conversion sub-module receives the parameters and executes up-down conversion operation. According to the invention, a chip does not need to be redesigned, frequency band setting is realized by using a commercial chip through a parameter configuration packet, and the development cost and period of private network equipment are reduced. Meanwhile, manual and automatic frequency conversion modes are supported, the environment can be intelligently sensed, the optimal working frequency band can be selected, the flexibility of equipment deployment and the adaptability to a complex electromagnetic environment are enhanced, and the application range of a commercial communication chip in a private network scene is expanded.

Description

Technical Field

[0001] This invention relates to the field of wireless communication frequency configuration technology, and in particular to a configurable dynamic frequency selection device and method. Background Technology

[0002] With the rapid development of wireless communication technology, application scenarios are becoming increasingly diversified, and different scenarios have placed different demands on the operating frequency bands of equipment. In particular, private network equipment, due to its special nature, needs to operate in specific frequency bands to meet specific requirements such as security and efficiency.

[0003] To adapt to the frequency band requirements of private networks, there are two main traditional solutions: First, the terminal design utilizes FPGA (Field-Programmable Gate Array) technology. While this method allows for flexible frequency band adjustments, it involves the complete redevelopment of the physical layer and protocol stack, resulting in long development cycles and high costs. Furthermore, FPGA-implemented devices are large, consume significant power, and are difficult to implement with fine-grained regional sleep control, limiting their performance in flexible application scenarios.

[0004] The second approach involves designing and developing dedicated chips for private network FPGAs to meet the frequency band adaptation requirements of private network equipment. However, this method has a long design and development cycle, typically requiring six months to a year. Modifications to the radio frequency section will trigger adjustments to the entire chip, resulting in poor flexibility. Furthermore, the usage of dedicated chips is far lower than that of ordinary commercial chips, leading to high development costs per chip and failing to reduce the overall product cost. Summary of the Invention

[0005] In view of this, it is necessary to provide a configurable dynamic frequency selection device and method to solve the above-mentioned problems of the prior art.

[0006] To address the aforementioned problems, in a first aspect, the present invention provides a configurable dynamic frequency selection device, comprising: The frequency conversion control submodule is used to obtain frequency conversion configuration parameters, control the start of the frequency conversion process, and write the frequency conversion parameters fed back by the frequency conversion parameter calculation submodule into the frequency conversion submodule. A frequency conversion parameter calculation submodule, connected to the frequency conversion control submodule, is used to calculate the frequency conversion parameters according to the frequency conversion configuration parameters and feed the calculation results back to the frequency conversion control submodule; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain and register parameters; The frequency conversion submodule, connected to the frequency conversion control submodule, is used to receive the frequency conversion parameters written by the frequency conversion control submodule and perform up-conversion and down-conversion operations according to the frequency conversion parameters.

[0007] Preferably, the configurable dynamic frequency selection device further includes: A wireless communication chip, connected to the frequency conversion submodule, is used to support different wireless communication standards or waveforms, provide the signal to be converted to the frequency conversion submodule, and receive the frequency-converted signal output by the frequency conversion submodule; wherein, the wireless communication chip is a common commercial wireless communication chip; A wireless communication module, connected to the wireless communication chip, is used for secondary development of the wireless communication chip and provides a hardware interface.

[0008] Preferably, the frequency conversion control submodule is specifically used for: Obtain the frequency configuration parameters and save the frequency conversion configuration parameters in a register; Start the frequency conversion parameter calculation submodule and pass the frequency conversion configuration parameters in the register to the frequency conversion parameter calculation submodule; Receive the frequency conversion parameter calculation results fed back by the frequency conversion parameter calculation submodule, and compile the frequency conversion parameters into a parameter configuration package; The parameter configuration package is written into the frequency conversion submodule to configure its operating parameters.

[0009] Preferably, the frequency conversion parameter calculation submodule has an automatic frequency conversion mode; In automatic frequency switching mode, the frequency sweeping component in the frequency switching submodule detects the frequency occupancy of surrounding wireless networks; and after adjusting the frequency switching configuration parameters according to the frequency sweeping results, it retransmits them to the frequency switching parameter calculation submodule to adapt to the frequency band requirements of the current network environment.

[0010] Preferably, the frequency conversion control submodule acquires frequency conversion configuration parameters, including: Manually configure the frequency conversion parameters, or, The frequency sweeping component of the frequency switching submodule detects the frequency occupancy of surrounding wireless networks in order to automatically detect frequency switching configuration parameters.

[0011] Preferably, the operating mode of the frequency conversion submodule includes TDD time division duplex mode. In the TDD time division duplex mode, the frequency conversion submodule includes an RF filter, an RF switch, an LNA low noise amplifier, a downconverter mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconverter mixer, and a PA power amplifier. The output of the RF filter is connected to the input of the RF switch to filter the input RF signal. The output of the RF switch is connected to the input of the LNA low-noise amplifier and the input of the PA power amplifier, respectively, to switch the transmit and receive links according to the timing of the TDD time-division duplex mode, so as to realize time-division transmission and reception in the same frequency band. The output of the LNA low-noise amplifier is connected to the input of the down-conversion mixer to amplify the signal of the receiving link with low noise. The input terminal of the downconversion mixer is also connected to the frequency conversion parameter writing interface, and the output terminal of the downconversion mixer is connected to the input terminal of the downsampling filter, which is used to perform downconversion processing on the amplified received signal according to the frequency conversion parameters written by the frequency conversion control submodule. The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component; the frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal. The output of the PA power amplifier is connected to the input of the upconversion mixer to amplify the signal in the transmission link and meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output is connected to the input of the upsampling filter. It is used to upconvert the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

[0012] Preferably, the operating mode of the frequency conversion submodule also includes FDD frequency division duplex mode. In the FDD frequency division duplex mode, the frequency conversion submodule includes a duplexer, a first RF filter, a second RF filter, an LNA low-noise amplifier, a downconverter mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconverter mixer, and a PA power amplifier. The input terminal of the duplexer is used to receive external radio frequency signals, and the output terminal of the duplexer is connected to the input terminals of the first RF filter and the second RF filter, respectively, to separate the received signal and the transmitted signal, so as to realize the simultaneous transmission and reception of the same device. The output of the first RF filter is connected to the input of the LNA low-noise amplifier for filtering the RF signal of the receiving link; the output of the LNA low-noise amplifier is connected to the input of the downconversion mixer for low-noise amplification of the signal of the receiving link; the input of the downconversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the downconversion mixer is connected to the input of the downsampling filter for downconverting the amplified received signal according to the frequency conversion parameters written by the frequency conversion control submodule. The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component; the frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal. The output of the second RF filter is connected to the input of the PA power amplifier for filtering the RF signal of the transmission link. The output of the PA power amplifier is connected to the input of the upconversion mixer for power amplification of the signal in the transmission link to meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the upconversion mixer is connected to the input of the upsampling filter for upconverting the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

[0013] Preferably, the frequency conversion parameter calculation submodule is specifically used for: Receive frequency conversion configuration parameters from the frequency conversion control submodule; wherein, the frequency conversion configuration parameters include center frequency, bandwidth, reference frequency, and frequency conversion reference frequency; The input frequency range is determined based on the center frequency and bandwidth, and the input frequency range is selected based on the frequency conversion configuration parameters or the surrounding wireless network environment information fed back by the frequency sweeping component. Based on the selected input frequency range and the frequency conversion reference frequency, the frequency conversion point parameters are calculated; wherein, the frequency conversion point parameters include the frequency after frequency conversion and the frequency number after frequency conversion, and the calculation formula is as follows: Frequency after frequency conversion = input frequency range + frequency conversion reference frequency; Frequency number after frequency conversion = (Frequency after frequency conversion - Frequency reference offset) / K + Frequency point number reference offset; In the formula, K is the frequency conversion factor; Based on the operating range of the components in the frequency conversion submodule and the link communication requirements, calculate the frequency conversion gain that satisfies the signal transmission threshold. Based on the operating mode of the frequency conversion submodule, register parameters adapted to the corresponding mode are generated; the frequency conversion point parameters, frequency conversion gain, and register parameters are fed back to the frequency conversion control submodule.

[0014] Secondly, embodiments of the present invention provide a configurable dynamic frequency selection method, including: Obtain frequency conversion configuration parameters; wherein, the frequency conversion configuration parameters include frequency band, center frequency, reference frequency, bandwidth, and adaptation standard; The frequency conversion parameters are calculated based on the frequency conversion configuration parameters; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain, and register parameters; Based on the frequency conversion parameters and the operating range of the components in the frequency conversion submodule, a parameter configuration package is generated; Initiate the writing process to burn the parameter configuration package into the frequency conversion submodule.

[0015] Preferably, obtaining the frequency conversion configuration parameters includes: Manually configure the frequency conversion parameters, or, The frequency sweeping component of the frequency switching submodule detects the frequency occupancy of surrounding wireless networks in order to automatically detect frequency switching configuration parameters.

[0016] The configurable dynamic frequency selection device and method provided by the present invention have the following advantages compared with the prior art: 1) This invention utilizes existing commercial wireless communication chips to dynamically calculate and generate a parameter configuration package containing frequency conversion parameters, which is then programmed into the frequency conversion submodule, thereby enabling the resetting of its operating frequency band and bandwidth. This invention eliminates the need for redesigning dedicated chips or fabricating new chips, avoiding the high costs and long development time associated with hardware redesign, reducing the development cost and cycle of private network equipment, and improving development efficiency.

[0017] 2) This invention introduces a configurable dynamic frequency selection mechanism, which not only supports dynamic configuration of parameters such as center frequency and bandwidth, but also features an automatic frequency switching mode. Through the frequency sweeping component built into the frequency switching submodule, the surrounding wireless environment is detected in real time, frequency occupancy is automatically analyzed, and frequency switching configuration parameters are dynamically adjusted accordingly. This enables the device to intelligently select idle or less-interfered frequency bands for communication, enhancing the deployment flexibility and adaptability to complex electromagnetic environments.

[0018] 3) This invention breaks through the limitations of fixed frequency band support in commercial chips at the physical layer by using frequency conversion technology. The frequency conversion submodule, through up-conversion / down-conversion processing, can flexibly convert the inherent operating frequency range of commercial chips (e.g., 3.3-3.8GHz) to the required target private network frequency band (e.g., 4.9GHz or 5.8GHz). This allows commercial chips, which were originally only available to the public market, and are inexpensive and have a mature ecosystem, to be easily applied to dedicated network scenarios with special frequency requirements, thereby expanding the market boundaries of commercial chips. Attached Figure Description

[0019] Figure 1 A schematic diagram of the configurable dynamic frequency selection device provided by the present invention; Figure 2 This is a schematic diagram of the TDD mode structure of the frequency conversion submodule provided by the present invention; Figure 3 This is a schematic diagram of the FDD mode structure of the frequency conversion submodule provided by the present invention; Figure 4 This is a functional block diagram of the frequency conversion control submodule provided by the present invention; Figure 5 A flowchart of the configurable dynamic frequency selection method provided by the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The naming or numbering of steps in the embodiments of the present invention does not mean that the steps in the method flow must be executed in the time / logical order indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effect can be achieved.

[0022] Figure 1 This is a schematic diagram of the configurable dynamic frequency selection device provided in an embodiment of the present invention; see reference. Figure 1 The configurable dynamic frequency selection device provided by the present invention includes: The frequency conversion control submodule is used to obtain frequency conversion configuration parameters, control the start of the frequency conversion process, and write the frequency conversion parameters fed back by the frequency conversion parameter calculation submodule into the frequency conversion submodule. A frequency conversion parameter calculation submodule, connected to the frequency conversion control submodule, is used to calculate the frequency conversion parameters according to the frequency conversion configuration parameters and feed the calculation results back to the frequency conversion control submodule; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain and register parameters; The frequency conversion submodule, connected to the frequency conversion control submodule, is used to receive the frequency conversion parameters written by the frequency conversion control submodule and perform up-conversion and down-conversion operations according to the frequency conversion parameters.

[0023] Specifically, the frequency conversion control submodule is responsible for acquiring frequency conversion configuration parameters, controlling the initiation of the frequency conversion process, and writing the frequency conversion parameters fed back from the frequency conversion parameter calculation submodule into the frequency conversion submodule. The frequency conversion configuration parameters are used to set a set of basic parameters related to frequency conversion, including frequency band, center frequency, reference frequency, bandwidth, and adaptation standards. Adaptation standards refer to communication field specifications or protocols that guide the calculation of frequency conversion parameters and ensure communication compatibility. The frequency conversion parameters are a set of parameters calculated based on the frequency conversion configuration parameters and used to specifically configure the frequency conversion submodule, including frequency point parameters, frequency conversion gain, and register parameters.

[0024] The frequency conversion parameter calculation submodule is connected to the frequency conversion control submodule. It performs calculations based on the acquired frequency conversion configuration parameters to obtain the frequency conversion point parameters, frequency conversion gain, and register parameters, and feeds these calculation results back to the frequency conversion control submodule.

[0025] The frequency conversion submodule is connected to the frequency conversion control submodule. It receives the frequency conversion parameters written by the frequency conversion control submodule and performs up-conversion or down-conversion operations on the signal based on these parameters, thereby converting the frequency range supported by the commercial chip to the target operating frequency band.

[0026] This invention replaces hardware reconfiguration with parameterized configuration, avoiding the need to redesign chips or adopt high-cost FPGA solutions for private networks, thus significantly reducing development costs and time. Through frequency conversion technology, this invention breaks the limitation of fixed frequency band support in commercial chips at the physical layer. The frequency conversion submodule, through up-conversion / down-conversion processing, can flexibly convert the inherent operating frequency range of commercial chips (e.g., 3.3-3.8GHz) to the required target private network frequency band (e.g., 4.9GHz or 5.8GHz). This allows low-cost, mature commercial chips, originally only available to the public market, to be easily applied to dedicated network scenarios with specific frequency requirements, thereby expanding the market boundaries of commercial chips.

[0027] In some embodiments of this application, reference is made to Figure 1 The configurable dynamic frequency selection device also includes: A wireless communication chip, connected to the frequency conversion submodule, is used to support different wireless communication standards or waveforms, provide the signal to be converted to the frequency conversion submodule, and receive the frequency-converted signal output by the frequency conversion submodule; wherein, the wireless communication chip is a common commercial wireless communication chip; A wireless communication module, connected to the wireless communication chip, is used for secondary development of the wireless communication chip and provides a hardware interface.

[0028] It is understandable that traditional private network equipment, in order to adapt to specific frequency bands, typically uses custom FPGAs or develops dedicated chips, which suffers from problems such as long development cycles, high costs, and poor flexibility. To address this issue, this invention proposes reusing existing mature commercial communication chips and achieving flexible frequency band switching through external adapters, thereby avoiding redundant design of the underlying hardware and significantly reducing the development threshold and cost of private network equipment.

[0029] In this embodiment, the configurable dynamic frequency selection device further integrates a wireless communication chip and a wireless communication module. The wireless communication chip is a common commercial wireless communication chip; a common commercial wireless communication chip refers to a wireless communication chip that is commercially available or ready for commercial use.

[0030] The wireless communication module is a component derived from secondary development based on the aforementioned ordinary commercial wireless communication chip. Its core function is to provide a packaged interface for the wireless communication chip. When using the device, users do not need to design additional adapter circuits; they can directly insert the module into their own board to complete the connection between the device and the user's board, quickly enabling the device's frequency selection function.

[0031] During operation, the wireless communication chip transmits the signal of the frequency band to be adjusted to the frequency conversion submodule as the input signal of the frequency conversion submodule. After the frequency conversion submodule completes the up-conversion or down-conversion operation, the frequency conversion submodule will send the signal adjusted to the target frequency band back to the wireless communication chip, which will then continue to process the subsequent communication process.

[0032] This invention leverages the versatility of common commercial wireless communication chips and combines them with the secondary development of wireless communication modules to provide a stable signal source and convenient hardware interface for configurable dynamic frequency selection devices. This allows the device to support multiple communication standards using commercial chips and achieve flexible access through modules, effectively reducing development costs and complexity, improving the device's adaptability and practicality, and better meeting the frequency band adaptation needs of different scenarios.

[0033] In some embodiments of this application, the operating modes of the frequency conversion submodule include TDD (Time Division Duplex) mode and FDD (Frequency Division Duplex) mode. Figure 2 This is a schematic diagram of the TDD mode structure of the frequency conversion submodule provided by the present invention, with reference to... Figure 2 In the TDD (Time Division Duplex) mode, the frequency conversion submodule includes an RF (Radio Frequency) filter, an RF switch, an LNA (Low Noise Amplifier), a downconversion mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconversion mixer, and a PA (Power Amplifier).

[0034] The output of the RF filter is connected to the input of the RF switch to filter the input RF signal. The output of the RF switch is connected to the input of the LNA (low noise amplifier) ​​and the PA (power amplifier) ​​to switch the transmit and receive links according to the timing of the TDD (time division duplex) mode, so as to realize time-division transmission and reception in the same frequency band and avoid interference between transmit and receive signals.

[0035] The output of the LNA (Low Noise Amplifier) ​​is connected to the input of the downconverter mixer to amplify the signal in the receiving link with low noise, ensuring signal quality. The input of the downconverter mixer is also connected to the frequency conversion parameter writing interface, and the output of the downconverter mixer is connected to the input of the downsampling filter. Based on the frequency conversion parameters written by the frequency conversion control submodule, the amplified received signal can be downconverted.

[0036] The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component. The frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal, providing a basis for automatic frequency switching.

[0037] The output of the PA power amplifier is connected to the input of the upconversion mixer to amplify the signal in the transmission link and meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output is connected to the input of the upsampling filter. It is used to upconvert the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

[0038] In this embodiment, the frequency conversion submodule in TDD mode achieves efficient time-division multiplexing and transmission / reception through an RF switch, avoiding link interference; RF filtering and low-noise amplification improve signal purity and reception quality, while power amplification ensures transmission distance; and a frequency sweeping component adapts to the network environment. This design allows the frequency conversion submodule to stably complete up-conversion and down-conversion in TDD mode and adapt to dynamic networks, improving the communication adaptability and reliability of the device.

[0039] Figure 3 This is a schematic diagram of the FDD mode of the frequency conversion submodule provided by the present invention. This mode supports the configuration of uplink and downlink at different frequencies. The core of this mode is the use of a duplexer to replace the RF switch in the TDD mode. The common end of the duplexer is connected to the antenna, and its two isolated ports are respectively connected to independent receive and transmit links, thereby realizing the simultaneous transmission and separation of uplink and downlink signals in the frequency domain.

[0040] Reference Figure 3 In the FDD frequency division duplex mode, the frequency conversion submodule includes a duplexer, a first RF filter, a second RF filter, an LNA low-noise amplifier, a downconverter mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconverter mixer, and a PA power amplifier.

[0041] The input terminal of the duplexer is connected to an external radio frequency signal, and the output terminal of the duplexer is connected to the input terminals of the first RF filter and the second RF filter, respectively, to separate the received signal and the transmitted signal, so as to realize the simultaneous transmission and reception of the same device and avoid crosstalk between uplink and downlink signals.

[0042] The output of the first RF filter is connected to the input of the LNA (Low Noise Amplifier) ​​for filtering the RF signal in the receiving link. The output of the LNA is connected to the input of the down-conversion mixer for low-noise amplification of the signal in the receiving link, ensuring the reception quality of weak signals. The input of the down-conversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the down-conversion mixer is connected to the input of the downsampling filter for down-converting the amplified received signal according to the frequency conversion parameters written by the frequency conversion control submodule.

[0043] The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component. The frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal to provide a basis for frequency band adaptation.

[0044] The output of the second RF filter is connected to the input of the PA power amplifier for filtering the RF signal of the transmission link. The output of the PA power amplifier is connected to the input of the upconversion mixer for power amplification of the signal in the transmission link to meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the upconversion mixer is connected to the input of the upsampling filter for upconverting the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

[0045] In this embodiment, the frequency conversion submodule in FDD mode achieves signal separation for both transmitting and receiving signals through a duplexer, avoiding crosstalk from simultaneous operation. Dual RF filtering and low-noise amplification improve signal purity and reception quality, while power amplification ensures transmission distance. Combined with a frequency sweeping component, it adapts to different network environments. This design allows the frequency conversion submodule to stably complete up-conversion and down-conversion in FDD mode, adapting to simultaneous transmission and reception at different frequency points, thus improving the device's communication adaptability and reliability.

[0046] In some embodiments of this application, the frequency conversion parameter calculation submodule has an automatic frequency conversion mode; In automatic frequency switching mode, the frequency sweeping component in the frequency switching submodule detects the frequency occupancy of surrounding wireless networks; and after adjusting the frequency switching configuration parameters according to the frequency sweeping results, it retransmits them to the frequency switching parameter calculation submodule to adapt to the frequency band requirements of the current network environment.

[0047] In this embodiment, the frequency switching parameter calculation submodule supports automatic frequency switching mode. After the automatic frequency switching mode is enabled, the frequency scanning component within the frequency switching submodule is first triggered to operate. The frequency scanning component scans the surrounding wireless networks, detects the wireless resource occupancy of each frequency band, and identifies frequency bands with less interference or those that match the surrounding base stations.

[0048] The frequency sweeping component feeds back the detection results to the frequency switching control submodule. Based on this environmental information, the control submodule automatically generates or adjusts a set of frequency switching configuration parameters. For example, it sets the target center frequency to the center of the idle frequency band obtained from the scan, and the bandwidth is adaptively set according to requirements and the environment. The updated configuration parameters are passed to the frequency switching parameter calculation submodule for recalculation, generating frequency switching parameters, gain, and register parameters that match the new frequency band. These parameters are compiled into a new parameter configuration package, which is written by the control submodule to the frequency switching submodule, driving its RF link to switch to the optimized frequency band.

[0049] Furthermore, the frequency switching control submodule obtains frequency switching configuration parameters in two ways: one is by manually inputting the frequency switching configuration parameters directly; the other is by using the frequency scanning component of the frequency switching submodule to detect the frequency occupancy of surrounding wireless networks, automatically obtaining the appropriate frequency switching configuration parameters, and then passing these parameters to the frequency switching parameter calculation submodule to provide a basis for calculating the frequency switching parameters.

[0050] This invention introduces a configurable dynamic frequency selection mechanism, which not only supports dynamic configuration of parameters such as center frequency and bandwidth, but also features an automatic frequency switching mode. Through the frequency scanning component built into the frequency switching submodule, the surrounding wireless environment is detected in real time, frequency occupancy is automatically analyzed, and frequency switching configuration parameters are dynamically adjusted accordingly. This enables the device to intelligently select idle or less-interfered frequency bands for communication, enhancing the deployment flexibility and adaptability to complex electromagnetic environments.

[0051] Figure 4 The functional block diagram of the frequency conversion control submodule provided by the present invention is shown below. Figure 4 The frequency conversion control submodule is specifically used for: Obtain the frequency configuration parameters and save the frequency conversion configuration parameters in a register; Start the frequency conversion parameter calculation submodule and pass the frequency conversion configuration parameters in the register to the frequency conversion parameter calculation submodule; Receive the frequency conversion parameter calculation results fed back by the frequency conversion parameter calculation submodule, and compile the frequency conversion parameters into a parameter configuration package; The parameter configuration package is written into the frequency conversion submodule to configure its operating parameters.

[0052] Specifically, the workflow of the frequency conversion control submodule is as follows: First, the frequency conversion control submodule acquires the frequency conversion configuration parameters. These parameters can be manually configured or automatically detected by the frequency conversion submodule's frequency sweep component. After acquisition, the frequency conversion configuration parameters are stored in a register to achieve temporary and reliable storage of the parameters and avoid data loss. Next, the frequency conversion control submodule starts the frequency conversion parameter calculation submodule and passes the frequency conversion configuration parameters stored in the register to the calculation submodule, providing it with the basis for calculation. After the frequency conversion parameter calculation submodule completes its calculation, the frequency conversion control submodule receives the feedback of the frequency conversion parameter calculation results, and then compiles these frequency conversion parameters into a parameter configuration package, unifying the parameter format to adapt to the parsing requirements of the frequency conversion submodule. Finally, the frequency conversion control submodule writes the parameter configuration package into the frequency conversion submodule, completing the working parameter configuration of the frequency conversion submodule, enabling it to perform up and down frequency conversion operations based on these parameters.

[0053] In some embodiments of this application, the frequency conversion parameter calculation submodule is specifically used for: Receive frequency conversion configuration parameters from the frequency conversion control submodule; wherein, the frequency conversion configuration parameters include center frequency, bandwidth, reference frequency, and frequency conversion reference frequency; The input frequency range is determined based on the center frequency and bandwidth, and the input frequency range is selected based on the frequency conversion configuration parameters or the surrounding wireless network environment information fed back by the frequency sweeping component. Based on the selected input frequency range and the frequency conversion reference frequency, the frequency conversion point parameters are calculated; wherein, the frequency conversion point parameters include the frequency after frequency conversion and the frequency number after frequency conversion, and the calculation formula is as follows: Frequency after frequency conversion = input frequency range + frequency conversion reference frequency; Frequency number after frequency conversion = (Frequency after frequency conversion - Frequency reference offset) / K + Frequency point number reference offset; In the formula, K is the frequency conversion factor; Based on the operating range of the components in the frequency conversion submodule and the link communication requirements, calculate the frequency conversion gain that satisfies the signal transmission threshold. Based on the operating mode of the frequency conversion submodule, register parameters adapted to the corresponding mode are generated; the frequency conversion point parameters, frequency conversion gain, and register parameters are fed back to the frequency conversion control submodule.

[0054] Here, the center frequency refers to the core frequency reference for the frequency conversion configuration. Bandwidth refers to the width of the frequency range of the frequency conversion signal. The input frequency range refers to the initial frequency interval determined by the center frequency and bandwidth. The frequency conversion reference frequency is the reference frequency value used to adjust the input frequency range. The frequency conversion coefficient K is a piecewise function parameter that changes with the frequency after conversion, used to calculate the frequency number after conversion. The frequency conversion point parameter includes the frequency after conversion and the frequency number after conversion, and is the core frequency point basis for the operation of the frequency conversion submodule. The frequency conversion gain refers to the signal amplification parameter calculated based on link requirements to meet the signal transmission threshold. The register parameters are configuration parameters adapted to the operating mode of the frequency conversion submodule, used to control the operating status of the submodule components.

[0055] In this embodiment, the frequency conversion parameter calculation submodule receives frequency conversion configuration parameters from the frequency conversion control submodule. This parameter set typically includes the target center frequency, bandwidth, reference frequency, and frequency conversion reference frequency. Subsequently, the input frequency range is determined based on the center frequency and bandwidth, and a selection is made from multiple possible input frequency ranges by combining the frequency conversion configuration parameters or surrounding wireless network environment information fed back by the frequency sweep component.

[0056] Furthermore, based on the selected input frequency range and the frequency conversion reference frequency, the frequency conversion point parameters are calculated. Subsequently, considering the operating range of the components in the frequency conversion submodule and the link communication requirements, the frequency conversion gain that meets the signal transmission threshold is calculated. Finally, according to the operating mode of the frequency conversion submodule, suitable register parameters are generated, and the frequency conversion point parameters, frequency conversion gain, and register parameters are fed back to the frequency conversion control submodule.

[0057] Figure 5 The flowchart of the configurable dynamic frequency selection method provided by the present invention is shown below. Figure 5 The method includes: Step S1: Obtain frequency conversion configuration parameters; wherein, the frequency conversion configuration parameters include frequency band, center frequency, reference frequency, bandwidth, and adaptation standard; Step S2: Calculate the frequency conversion parameters based on the frequency conversion configuration parameters; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain, and register parameters; Step S3: Generate a parameter configuration package based on the frequency conversion parameters and the operating range of the components in the frequency conversion submodule; Step S4: Start the writing process and write the parameter configuration package to the frequency conversion submodule.

[0058] The acquisition of frequency switching configuration parameters includes: manually configuring frequency switching configuration parameters, or automatically detecting the frequency occupancy of surrounding wireless networks through the frequency scanning component of the frequency switching submodule.

[0059] The configurable dynamic frequency selection method provided by the present invention is executed by the configurable dynamic frequency selection device provided in the foregoing embodiments. The configurable dynamic frequency selection device has been described in detail in the foregoing embodiments, and the methane monitoring method will not be described again in this embodiment.

[0060] Based on the above embodiments, the configurable dynamic frequency selection method provided by the present invention will be described through the following four embodiments: Example 1: Taking the configuration of the 5.8GHz target frequency band as an example, the specific implementation steps are as follows: First, the user sets the 5G frequency configuration parameters for the wireless communication module: the frequency range of the commercial module is 3.3GHz. The frequency is 3.8 GHz, the bandwidth is 500 MHz, the center frequency is 3.5 GHz, the reference frequency is 3.45 GHz, the input switching reference frequency is 2.3 GHz, and the adaptation standards are 3GPP R15, R16, and R17. Among them, the commercial module is the wireless communication module in the above embodiment. This module is a standardized hardware component formed by secondary development based on ordinary commercial wireless communication chips. Next, based on the aforementioned frequency configuration parameters, the frequency conversion parameter calculation submodule calculates the converted frequency and the converted frequency number, resulting in a frequency conversion output range of 5.6GHz. 6.1GHz, bandwidth maintained at 500MHz, target center frequency at 5.8GHz, reference frequency at 5.75GHz; assuming a frequency conversion factor K of 0.015MHz, the frequency number corresponding to the center frequency after frequency conversion is 788324; Furthermore, based on the operating range of the components in the frequency conversion submodule, and combined with the calculated frequency number and frequency after frequency conversion, the corresponding PAC package is automatically compiled and generated. Finally, the parameter writing process is initiated, and the generated PAC package is burned into the frequency conversion submodule, thereby completing the hardware configuration and enabling the device to operate in the 5.8GHz target frequency band.

[0061] Example 2: Taking the configuration of the 5.1GHz target frequency band as an example, the specific implementation steps are as follows: This embodiment provides a configuration process for adapting the same commercial 5G module to the 5.1GHz frequency band. First, the user configures the 5G frequency switching parameters: the frequency range of the commercial module is 3.3GHz. 3.8GHz, bandwidth of 500MHz, center frequency of 3.5GHz, reference frequency of 3.45GHz, input switching reference frequency of 1.6GHz, and compatibility standards of 3GPP R15, R16, and R17; Next, based on the aforementioned frequency configuration parameters, the frequency conversion parameter calculation submodule calculates the converted frequency and the converted frequency number, resulting in a frequency conversion output range of 4.9GHz. 5.4GHz, bandwidth maintained at 500MHz, target center frequency at 5.1GHz, reference frequency at 5.15GHz; assuming a frequency conversion factor K of 0.015MHz, the corresponding frequency number after frequency conversion is 741324; Subsequently, based on the operating range of the components in the frequency conversion submodule, and combined with the calculated frequency conversion number and frequency, a PAC packet is automatically generated. Finally, the parameter writing process is initiated, and the generated PAC package is burned into the frequency conversion submodule to realize the device's switching to the 5.1GHz operating frequency band.

[0062] Example 3: Taking manually configuring frequency parameters to adapt to the target frequency band as an example, the specific implementation steps are as follows: This example demonstrates manual frequency configuration for non-5G commercial modules (e.g., modules supporting 3G PPR9). First, the user sets the frequency configuration parameters: the frequency range for commercial modules is 1.8GHz. 2.3GHz, bandwidth of 100MHz, center frequency of 2.1GHz, reference frequency of 2.15GHz, input switching reference frequency of 1.5GHz, and compatibility standard of 3GPPR9; Next, based on the aforementioned frequency configuration parameters, the frequency conversion parameter calculation submodule calculates the converted frequency and the converted frequency number, resulting in a frequency conversion output range of 3.3GHz. 3.8GHz, bandwidth maintained at 100MHz, target center frequency at 3.6GHz, reference frequency at 3.65GHz; assuming a frequency conversion factor K of 100MHz, the corresponding frequency number after frequency conversion is 36; Subsequently, based on the operating range of the components in the frequency conversion submodule, and combined with the calculated frequency conversion number and frequency, a PAC packet is automatically generated. Finally, the parameter writing process is initiated, and the generated PAC package is burned into the frequency conversion submodule to complete the conversion from the original frequency band to the 3.6GHz target frequency band.

[0063] Example 4: Taking automatic configuration of frequency parameters to adapt to the target frequency band as an example, the specific implementation steps are as follows: This embodiment illustrates the workflow of the device in automatic frequency switching mode. First, the user sets the system to automatic search mode, and the system activates the frequency scanning function within the frequency switching submodule to scan and detect the spectrum occupancy of surrounding wireless air interfaces, identifying idle frequency bands in the surrounding wireless networks; Next, the frequency sweeping component detected that the idle frequency band of the wireless air interface was 3GHz. 3.9GHz, and there is no interference in this frequency band; combined with the frequency range of commercial modules (1.8GHz) 2.3GHz), bandwidth (100MHz), center frequency (2.1GHz), reference frequency (2.15GHz), the frequency conversion reference frequency is determined to be 1.5GHz, and the adaptation standard is 3GPPR9; Subsequently, based on the frequency parameters determined above, and combined with expressions (1) and (2) in the document, calculations were performed to obtain a frequency range of 3.3 GHz for the frequency conversion output. 3.8GHz, bandwidth maintained at 100MHz, target center frequency at 3.6GHz, reference frequency at 3.65GHz; assuming a frequency conversion factor K of 100MHz, the corresponding frequency number after frequency conversion is 36; Next, determine whether the frequency band of the frequency conversion output meets the requirements of the current network environment: if it meets the requirements, proceed to the next step; if it does not meet the requirements, re-initiate the frequency scan search to find a free or less interfered frequency band. Finally, based on the operating range of the components in the frequency conversion submodule, and combined with the calculated frequency number and frequency after conversion, a PAC packet is automatically generated. The parameter writing process is then initiated, and the generated PAC packet is burned into the frequency conversion submodule, enabling the device to automatically adapt to the frequency band based on environmental awareness, operating in the less interference-prone 3.6GHz band.

[0064] The above four embodiments illustrate the implementation of the present invention from different dimensions. Embodiments 1 and 2, using a 5G module as an example, demonstrate that by manually configuring different conversion reference frequencies, the same hardware platform can be flexibly adapted to multiple differentiated private network high-frequency bands such as 5.8GHz and 5.1GHz. Embodiment 3 shows that this solution is also applicable to modules using other communication standards (such as 3GPP R9), achieving conversion to mid-frequency bands (such as 3.6GHz), verifying the universal applicability of the technology. Embodiment 4 further reveals the intelligent features of the present invention, namely, by integrating frequency scanning and automatic decision-making processes, the device can autonomously detect the environment and select the optimal idle frequency band for adaptation, significantly enhancing deployment flexibility and reliability in complex electromagnetic environments. These embodiments collectively demonstrate that the present invention, through a configurable and computable parameterization system, effectively achieves the core objective of dynamically adapting to multiple private network frequency requirements using general-purpose commercial chip hardware.

[0065] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise expressly specified and limited, the terms "installed," "connected," or "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A configurable dynamic frequency selection device, characterized in that, include: The frequency conversion control submodule is used to obtain frequency conversion configuration parameters, control the start of the frequency conversion process, and write the frequency conversion parameters fed back by the frequency conversion parameter calculation submodule into the frequency conversion submodule. A frequency conversion parameter calculation submodule, connected to the frequency conversion control submodule, is used to calculate the frequency conversion parameters according to the frequency conversion configuration parameters and feed the calculation results back to the frequency conversion control submodule; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain and register parameters; The frequency conversion submodule, connected to the frequency conversion control submodule, is used to receive the frequency conversion parameters written by the frequency conversion control submodule and perform up-conversion and down-conversion operations according to the frequency conversion parameters.

2. The configurable dynamic frequency selection device according to claim 1, characterized in that, Also includes: A wireless communication chip, connected to the frequency conversion submodule, is used to support different wireless communication standards or waveforms, provide the signal to be converted to the frequency conversion submodule, and receive the frequency-converted signal output by the frequency conversion submodule; wherein, the wireless communication chip is a common commercial wireless communication chip; A wireless communication module, connected to the wireless communication chip, is used for secondary development of the wireless communication chip and provides a hardware interface.

3. The configurable dynamic frequency selection device according to claim 1, characterized in that, The frequency conversion control submodule is specifically used for: Obtain the frequency configuration parameters and save the frequency conversion configuration parameters in a register; Start the frequency conversion parameter calculation submodule and pass the frequency conversion configuration parameters in the register to the frequency conversion parameter calculation submodule; Receive the frequency conversion parameter calculation results fed back by the frequency conversion parameter calculation submodule, and compile the frequency conversion parameters into a parameter configuration package; The parameter configuration package is written into the frequency conversion submodule to configure its operating parameters.

4. The configurable dynamic frequency selection device according to claim 1, characterized in that, The frequency conversion parameter calculation submodule has an automatic frequency conversion mode; In automatic frequency switching mode, the frequency sweeping component in the frequency switching submodule detects the frequency occupancy of surrounding wireless networks; and after adjusting the frequency switching configuration parameters according to the frequency sweeping results, it retransmits them to the frequency switching parameter calculation submodule to adapt to the frequency band requirements of the current network environment.

5. The configurable dynamic frequency selection device according to claim 4, characterized in that, The frequency conversion control submodule acquires frequency conversion configuration parameters, including: Manually configure the frequency conversion parameters, or, The frequency sweeping component of the frequency switching submodule detects the frequency occupancy of surrounding wireless networks in order to automatically detect frequency switching configuration parameters.

6. The configurable dynamic frequency selection device according to claim 1, characterized in that, The operating modes of the frequency conversion submodule include TDD (Time Division Duplex) mode. In the TDD mode, the frequency conversion submodule includes an RF filter, an RF switch, an LNA (Low Noise Amplifier), a downconverter mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconverter mixer, and a PA (Power Amplifier). The output of the RF filter is connected to the input of the RF switch to filter the input RF signal. The output of the RF switch is connected to the input of the LNA low-noise amplifier and the input of the PA power amplifier, respectively, to switch the transmit and receive links according to the timing of the TDD time-division duplex mode, so as to realize time-division transmission and reception in the same frequency band. The output of the LNA low-noise amplifier is connected to the input of the down-conversion mixer to amplify the signal of the receiving link with low noise. The input terminal of the downconversion mixer is also connected to the frequency conversion parameter writing interface, and the output terminal of the downconversion mixer is connected to the input terminal of the downsampling filter, which is used to perform downconversion processing on the amplified received signal according to the frequency conversion parameters written by the frequency conversion control submodule. The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component; the frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal. The output of the PA power amplifier is connected to the input of the upconversion mixer to amplify the signal in the transmission link and meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output is connected to the input of the upsampling filter. It is used to upconvert the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

7. The configurable dynamic frequency selection device according to claim 6, characterized in that, The operating mode of the frequency conversion submodule also includes FDD frequency division duplex mode. In the FDD frequency division duplex mode, the frequency conversion submodule includes a duplexer, a first RF filter, a second RF filter, an LNA low-noise amplifier, a downconverter mixer, a downsampling filter, a sweep frequency component, an upsampling filter, an upconverter mixer, and a PA power amplifier. The input terminal of the duplexer is used to receive external radio frequency signals, and the output terminal of the duplexer is connected to the input terminals of the first RF filter and the second RF filter, respectively, to separate the received signal and the transmitted signal, so as to realize the simultaneous transmission and reception of the same device. The output of the first RF filter is connected to the input of the LNA low-noise amplifier for filtering the RF signal of the receiving link; the output of the LNA low-noise amplifier is connected to the input of the downconversion mixer for low-noise amplification of the signal of the receiving link; the input of the downconversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the downconversion mixer is connected to the input of the downsampling filter for downconverting the amplified received signal according to the frequency conversion parameters written by the frequency conversion control submodule. The output of the downsampling filter is connected to the input of the frequency sweeping component, and is used to downsample and filter the downconverted signal to meet the signal processing requirements of the frequency sweeping component; the frequency sweeping component is used to scan the wireless resource occupancy of the surrounding network based on the processed signal. The output of the second RF filter is connected to the input of the PA power amplifier for filtering the RF signal of the transmission link. The output of the PA power amplifier is connected to the input of the upconversion mixer for power amplification of the signal in the transmission link to meet the signal transmission distance requirements. The input of the upconversion mixer is also connected to the frequency conversion parameter writing interface, and the output of the upconversion mixer is connected to the input of the upsampling filter for upconverting the transmitted signal according to the frequency conversion parameters written by the frequency conversion control submodule. The upsampling filter is used to upsample and filter the transmitted signal to adapt to the signal transmission requirements after upconversion.

8. The configurable dynamic frequency selection device according to claim 7, characterized in that, The frequency conversion parameter calculation submodule is specifically used for: Receive frequency conversion configuration parameters from the frequency conversion control submodule; wherein, the frequency conversion configuration parameters include center frequency, bandwidth, reference frequency, and frequency conversion reference frequency; The input frequency range is determined based on the center frequency and bandwidth, and the input frequency range is selected based on the frequency conversion configuration parameters or the surrounding wireless network environment information fed back by the frequency sweeping component. Based on the selected input frequency range and the frequency conversion reference frequency, the frequency conversion point parameters are calculated; wherein, the frequency conversion point parameters include the frequency after frequency conversion and the frequency number after frequency conversion, and the calculation formula is as follows: Frequency after frequency conversion = input frequency range + frequency conversion reference frequency; Frequency number after frequency conversion = (Frequency after frequency conversion - Frequency reference offset) / K + Frequency point number reference offset; In the formula, K is the frequency conversion factor; Based on the operating range of the components in the frequency conversion submodule and the link communication requirements, calculate the frequency conversion gain that satisfies the signal transmission threshold. Based on the operating mode of the frequency conversion submodule, register parameters adapted to the corresponding mode are generated; the frequency conversion point parameters, frequency conversion gain, and register parameters are fed back to the frequency conversion control submodule.

9. A configurable dynamic frequency selection method for a configurable dynamic frequency selection device as described in any one of claims 1-8, characterized in that, include: Obtain frequency conversion configuration parameters; wherein, the frequency conversion configuration parameters include frequency band, center frequency, reference frequency, bandwidth, and adaptation standard; The frequency conversion parameters are calculated based on the frequency conversion configuration parameters; wherein, the frequency conversion parameters include frequency conversion point parameters, frequency conversion gain, and register parameters; Based on the frequency conversion parameters and the operating range of the components in the frequency conversion submodule, a parameter configuration package is generated; Initiate the writing process to burn the parameter configuration package into the frequency conversion submodule.

10. The configurable dynamic frequency selection method according to claim 9, characterized in that, The acquisition of frequency conversion configuration parameters includes: Manually configure the frequency conversion parameters, or, The frequency sweeping component of the frequency switching submodule detects the frequency occupancy of surrounding wireless networks in order to automatically detect frequency switching configuration parameters.

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